[go: up one dir, main page]

EP2740940A1 - Immersion pump - Google Patents

Immersion pump Download PDF

Info

Publication number
EP2740940A1
EP2740940A1 EP12195386.3A EP12195386A EP2740940A1 EP 2740940 A1 EP2740940 A1 EP 2740940A1 EP 12195386 A EP12195386 A EP 12195386A EP 2740940 A1 EP2740940 A1 EP 2740940A1
Authority
EP
European Patent Office
Prior art keywords
submersible pump
pump
relative
adjusting means
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12195386.3A
Other languages
German (de)
French (fr)
Other versions
EP2740940B1 (en
Inventor
Franziska Agrawal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Einhell Germany AG
Original Assignee
Einhell Germany AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to PT121953863T priority Critical patent/PT2740940T/en
Priority to DK12195386.3T priority patent/DK2740940T3/en
Priority to PL12195386T priority patent/PL2740940T3/en
Priority to ES12195386T priority patent/ES2781777T3/en
Priority to EP12195386.3A priority patent/EP2740940B1/en
Application filed by Einhell Germany AG filed Critical Einhell Germany AG
Priority to AU2013267008A priority patent/AU2013267008A1/en
Publication of EP2740940A1 publication Critical patent/EP2740940A1/en
Application granted granted Critical
Publication of EP2740940B1 publication Critical patent/EP2740940B1/en
Priority to HRP20200509TT priority patent/HRP20200509T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/70Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps

Definitions

  • the invention relates to a submersible pump.
  • a submersible pump protrudes in the pump operation with its lower portion under the surface of the liquid to be pumped.
  • Submersible pumps are commonly used in the garden area to dispense water from water tanks, such as water dispensers.
  • Another important area is the removal of water that has penetrated parts of buildings, especially basements.
  • EP 1186782 are feet of the submersible pump, which define a level, trained after Exzenterart and adjustable in height.
  • a surrounding the lower part of the pump housing ring is provided, which is adjustable to different heights above the formed by the bottom of the pump housing level level and thereby lateral passage openings of the Pump housing covered to varying degrees.
  • the ring must be sealed against the housing by a ring seal to prevent the intake of air above the level of the water surrounding the pump.
  • the DE 10 2005 031 420 A1 shows a submersible pump, which in the lower part of the pump housing has a basket with a bottom and a pump housing enclosing wall.
  • the pump housing is displaceable over a bayonet-type connection between an upper dirty water operation position and a lower clear water operation position relative to the basket.
  • In the upper position water can be sucked through large openings in the wall of the basket, which are blocked in the lower position of the pump housing.
  • In the lower position water is sucked through recessed channels at the bottom of the basket bottom and a grid opening in the bottom of the basket.
  • the present invention has for its object to provide a flexible submersible pump.
  • the opening width of the upstream of the pump chamber lying and the maximum size of submersible pumpable solids determining passage openings between a first opening width for dirty water operation and a second opening width for clear water operation with at least one, preferably more intermediate positions advantageously results in an extended application area with only a submersible pump.
  • the change in the opening width is carried out via relatively movable to the pump housing between a first position and a second position adjusting means, resulting in the first position of the adjusting the first opening width and in the second position of the adjusting the second opening width of the passage openings.
  • the values for the opening widths in the intermediate positions are between the first opening width and the second opening width.
  • the opening widths of the passage openings are in this case usually related to the diameter of spherical sample solids, which can still be conveyed by the pump in the respective position of the adjustment means.
  • the passage openings do not generally have a circular cross-section transverse to the flow direction at the passage openings.
  • the first opening width is advantageously at least 20 mm, in particular at least 25 mm for the dirty water operation of the submersible pump.
  • the second opening width is advantageously at most 8 mm, in particular at most 6 mm for the clear water operation of the submersible pump.
  • the values for the opening widths in intermediate positions of the adjusting means are between the values of the first opening width and the second opening width.
  • an operating mode with flat suction up to water levels of less than 2 mm above the level of the submersible pump may be provided.
  • the adjustment of the opening width and the height of the inlet opening in the pump chamber above the level of the submersible pump changed, wherein the first opening width of a greater height and the second opening width are associated with a smaller height.
  • the level is advantageously not determined by the pump housing, but by the adjustment and the pump housing with the pump chamber is adjustable in height by adjusting the adjustment relative to the level.
  • the adjusting means are connected to the pump housing both in their first and in their second position.
  • the adjusting means may in particular comprise a ring arranged in the lower region of the pump housing and preferably surrounding the pump housing.
  • the ring may be completed in an advantageous development below by a base plate equipped with apertures, the base plate can also serve as a protection against the accidental intervention of a user by hand in a rotating pump impeller.
  • the base plate can have surface openings through which water can flow.
  • the base plate which forms the level of the pump, can be held in an advantageous development relative to the ring about its axis of rotation rotatably on the ring.
  • the ring can also be rotated relative to the base plate when the base plate is stationary on a base surface, in order to change the opening width of the passage openings and / or the residual water level.
  • a displacement of the adjusting means between the first and the second position may advantageously comprise a movement sequence which contains both a rotational movement component about a rotational axis which is vertical in pump operation and a displacement component parallel to this rotational axis, in each case relative to the pump housing.
  • Such a sequence of movements can be given in a preferred embodiment by a threaded connection between the pump housing and the relative to this rotatable adjusting means.
  • the first and / or the second position of the adjusting means can be predetermined by one or two stop-determined end positions.
  • the adjusting means are positionable in one or more intermediate positions between the first and the second position.
  • the adjusting means are fixed relative to the pump housing in the first and the second position and at least one, preferably a plurality of intermediate position, in order to ensure the maintenance of the respective position in the pump operation.
  • a determination can take place frictionally in an advantageous embodiment, for which an elastic tension, in particular in relation to a vertical axis radial direction between adjustment and pump housing is advantageous.
  • Such a radial clamping can be given in a particularly advantageous embodiment by an inserted into a radial gap between the adjusting means and the pump housing rubber-elastic friction element, in particular a rubber-elastic ring in an annular gap.
  • the frictional force is sized so that it is sufficient to maintain the selected position in the pump operation, but at the same time manually by a manual force of a user can be overcome.
  • a frictional attachment can be done in a preferred embodiment by a locking screw.
  • the locking screw which is preferably operated manually without tools, preferably has a substantially with respect to a vertical axis of rotation in operation radial screw axis.
  • a positive fixing of the adjusting means in one or more positions relative to the pump housing may also be provided.
  • a fixing element for example, releasably cooperate with at least one recess, recess, relief or stop edge on adjusting means and / or pump housing and be designed for example as a pin or screw.
  • a depression can be given in an advantageous embodiment only by a flattening on a curved surface, in particular on a convex outside of the pump housing.
  • Other possibilities of frictional and / or non-positive, releasable fixing of the adjusting means relative to the pump housing are known per se to those skilled in the art.
  • Fig. 1 shows in oblique view a first embodiment of a submersible pump TP1.
  • the submersible pump TP1 is made up of several components, wherein in the assembly diagram after Fig. 2 in particular an upper housing part GO and a lower housing part GU of the pump housing, a rotatably held on the pump housing ring DR and a base plate GP are differentiated.
  • the individual components, in particular the pump housing may be subdivided further, which is no longer relevant to the following explanation of exemplary embodiments of the invention.
  • a drive motor is accommodated, which rotatably drives a pump impeller LR about an axis of rotation RA which is essentially oriented vertically in pump operation.
  • the impeller LR protrudes in the assembled state of the pump housing in a pump chamber LK of the housing base GU, from which an output channel AK leads to an output terminal AA away.
  • Upper housing part GO and lower housing part GU are typically firmly connected to each other and are not separated from each other by the user of the submersible pump.
  • the compound can typically be over in Fig. 2 do not take place with drawn screws with the axis of rotation RA substantially parallel screw axis.
  • a plurality of sections of an external thread AG are arranged, which are carried out in this example only as circumferentially spaced portions of one or two helical turns of a thread helix.
  • external thread tuned internal thread IG is formed, which cooperates with the external thread AG in such a way that the ring DR by engagement of the external thread AG and the internal thread IG on the housing lower part GU held by a threaded connection and is rotatable relative to the housing bottom part GU about a rotation axis DA.
  • the base plate GP may be made integral with the ring DR, but is preferably as in FIG Fig. 2 illustrated an independent component, which is fastened to the bottom of the ring DR.
  • the base plate GP plug holes GB are formed, through which locking pins SS, which can also be designed as wires, in the direction of the lines shown broken are inserted.
  • the locking pins SS cooperate with recesses SA on the circumference of the ring DR in its lower region and hold the base plate GP on the underside of the ring DR and fix the base plate GP with respect to the axis of rotation DA axial direction relative to the ring DR.
  • a grid is formed, through which water in particular in a reference to Fig. 5 to be described in more detail for Flachabsaugung described.
  • the grid is surrounded by an opposite the top PP of the base plate recessed annular surface GG.
  • On the underside of the base plate flat spaces are formed against the level of the pump, which allow a flow of water from the environment of the pump to the grid GI under the base plate GP through.
  • the recesses SA can form circumferential annular grooves in the lower region of the ring DR, as a result of which the ring DR can be rotated about the axis of rotation DA during permanent engagement of the securing elements relative to the baseplate GP.
  • the ring DR can be rotated about the axis of rotation, while the base plate GP, which forms the level of the pump, remains undrilled on the base surface.
  • Fig. 1 is the ring DR positioned in a relative to the housing lower part GU deep first position and set in this position for pump operation as a dirty water pump relative to the pump housing.
  • the determination is made in the example outlined by means of a clamping screw KS, which is screwed into a threaded bore UB of the ring DR and can be clamped against the outer surface of the housing base GU.
  • KS clamping screw
  • On the outer surface of the housing lower part can advantageously be designated for this purpose preferred surfaces which dictate certain preferred rotational positions of the ring DR about the axis of rotation DA, for example as outlined by flats GA a curved side wall of the lower part GU of the pump housing.
  • the ring DR can be fixed in any rotational position about the axis of rotation DA relative to the lower housing part of the pump housing.
  • Fig. 3 shows for the in Fig. 1 illustrated first position of the adjusting means or at least a part of the adjusting means forming the ring DR a section through the lower portion of the submersible pump.
  • the underside of the base plate GP forms a level plane SE, which is typically aligned at least approximately horizontally in pump operation.
  • LK impeller LR water is sucked through a lower inlet opening EO of the pump chamber and over the in Fig. 1 shown output channel AK to the output port AA pump promoted.
  • the lower edge of the housing lower part is preferably located in this first position of the rotary ring above the upper edge of the recesses OR, so that in Fig.
  • the passage openings DO completely as a clear height HS for sucking water including transported with this solid is available. If the transverse dimension of the passage openings DO is smaller than its height HL, this width of the passage openings determines the opening width of the passage openings and the maximum diameter of conveyable solids.
  • the diameter of the inlet opening EO in the pump chamber is at least by a small amount greater than the maximum opening width of the passage openings DO, so that larger solids already held at the passage openings DO and can not clog the inlet opening EO within the ring DR.
  • the lower edge of the lower housing part GU is in the example sketched in the first position of the rotary ring DR containing adjusting means above the upper edge of the recesses OR, so that the opening width is not limited by the lower housing part.
  • An upper edge RO of the ring DR is vertically spaced from a lower edge KO of the upper part of the pump housing by a distance DS which is larger than the height HS of the passage openings.
  • the ring DR in the in Fig. 1 and Fig. 2 DB designated movement, which includes a rotation about the axis of rotation DA with simultaneous movement of the ring in parallel to the axis of rotation DA direction
  • the ring DR in the in Fig. 4 in to Fig. 3 analog sectional view shown second position of the adjusting means are brought.
  • the clear height of the passage openings DO is limited by the lower edge UK of the housing lower part to a value HK, which is for example at most 8 mm, in particular at most 6 mm.
  • the diameter of solids which can be sucked through the passage opening DO is therefore limited to these dimensions, and the pump works like a clear water pump.
  • the pump housing is closer to the level SE than in the first position, and the upper edge RO of the ring DR is spaced a reduced distance DK from the lower edge UG of the upper part GO of the housing.
  • a collar KR from the bottom of the pump chamber down, which can be spaced relative to the inlet opening EO into the pump chamber radially with respect to the axis of rotation RA by a small amount and is formed circumferentially around the inlet opening.
  • Such an integrally formed on the underside of the pump chamber collar can lower the level above the level SE, to which water can be sucked by the pump, even further, so that the pump can also be used for Flachabsaugung.
  • Such a flat suction position is in Fig. 5 sketched and can by further rotation of the ring DR about the axis of rotation DA on the second position to Fig. 4 Be set out.
  • the rotation may be limited by abutment of the upper edge RO of the ring DR at a lower edge UO of the housing top part GO.
  • a limitation of the sequence of movements is alternatively or simultaneously also possible by abutment of the lower edge of the lower housing part on the upper side PP held on the ring DR base plate GP or by other means known in the art per se.
  • the collar KR around the inlet opening EO is substantially on the lowered annular surface GG.
  • a water flow through the recesses OR is practically prevented by the installation of the lower edge UK of the lower part GU or lower side of the pump chamber on the upper side PP of the base plate or in particular by contact of the collar KR on the lowered annular surface GG and water flows under the base plate through there over the Stand level SE trained free spaces BK to the center of the base plate and through the grid GI in the inlet opening EO of the pump chamber LK.
  • a residual water level HF, up to which the pump in this Flachabsaug ein can suck water from the environment is at sufficiently airtight conclusion of the previous flow path above the base GP by the height of the free spaces BK, otherwise by the height of the collar KR to the inlet EO on the Level determined.
  • the residual water level HF is advantageously not more than 3 mm, in particular not more than 2 mm.
  • the ring DR advantageously also set in a different position relative to the pump housing in one or more intermediate positions and z. B. by means of the clamping screw KS against unintentional twisting, resulting in each case different opening widths of the passage openings. Due to the fixability of a selected position of the rotary ring size of the flow openings and residual water levels remain in pump operation.
  • the different opening widths of the passage openings are correlated with the height of the inlet opening EO the pump chamber above the level SE, so that also depending on the position of the ring DR relative to the pump housing, different water levels result, up to which the pump can suck water from the environment.
  • Fig. 6 schematically shows a lower portion PU of a pump housing and held on this via a threaded connection and height adjustable ring RR, which in turn can be displaced by means of a screw-rotation movement DB relative to the pump housing.
  • an external thread PA which revolves around the pump housing several times, is formed on the outer wall of the pump housing PU, and an internal thread PI on the inner wall of the ring RR is wound only slightly around the circumference, for example only once around an axis of rotation DA or is also divided into sections , executed.
  • an elastically deformable ring element RD is inserted, which rests against the inner surface RI of the ring RR under elastic bias and forms a friction element whose static friction against the outer wall of the pump housing and / or the surface RI of the ring RR as a static friction force a holding force against unintentional rotation of the ring RR in the threaded connection PA, PI causes relative to the pump housing PU.
  • the static friction force is advantageously overcome by a user power.
  • the friction element RD can for example be designed as a rubber-elastic O-ring.
  • the friction element RD need not fulfill a sealing function against unwanted suction of air through the gap with the threaded connection between the ring RR and the pump housing PU, since the minimum achievable water level in the vicinity of the submersible pump is determined in this case by the lower edge of the pump housing PU.
  • ring RR recesses OS are formed from the lower edge thereof, which in the in Fig. 6 sketched relative position between ring RR and pump housing PU determine the opening width of passage openings for sucking water with optionally present in this solid.
  • own recesses OK are provided on the lower edge UG of the pump housing PU, which in a second position of the ring RR relative to the pump housing PU completely down to a level lower edge UG of the pump housing, the opening widths of passage openings to a small value corresponding to a clear water operation restrict the submersible pump.
  • intermediate positions of the ring RR are relative to the pump housing PU between the second position and in Fig. 6 shown first position possible, in particular, the ring RR can be adjusted continuously relative to the pump housing PU.
  • the ring RR can in turn be closed down by a base plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Glass Compositions (AREA)

Abstract

The pump (TP1) has a vertically spaced pump chamber facing an inlet opening, and a motorized rotating impeller arranged in the pump chamber. An adjustable unit (DR) is movable relative to a pump casing (PG) between a position for increasing an opening width of a passage aperture (DO) for a wastewater operation of the pump, and another position for reducing the opening width of the passage aperture for a clear water operation of the pump. The adjustable is moved between the two positions such that minimum suction height and/or maximum particle size are different for the two positions.

Description

Die Erfindung betrifft eine Tauchpumpe.The invention relates to a submersible pump.

Eine Tauchpumpe ragt im Pumpenbetrieb mit ihrem unteren Bereich unter die Oberfläche der abzupumpenden Flüssigkeit. Tauchpumpen sind häufig im Gartenbereich im Einsatz, um Wasser aus Wasserbehältern Ausgabegeräten, z. B. zur Pflanzenbewässerung zuzuführen. Ein anderer wichtiger Bereich ist in der Entfernung von in Gebäudeteile, insbesondere Keller, eingedrungenes Wasser zu entfernen.A submersible pump protrudes in the pump operation with its lower portion under the surface of the liquid to be pumped. Submersible pumps are commonly used in the garden area to dispense water from water tanks, such as water dispensers. B. supply for plant irrigation. Another important area is the removal of water that has penetrated parts of buildings, especially basements.

Bei Tauchpumpen werden Klarwasserpumpen und Schmutzwasserpumpen nach der Größe von maximal durch die Pumpe mit dem gepumpten Wasser förderbaren Festkörpern unterschieden, wobei zur Einordnung Festkörper in Kugelform und deren Durchmesser als Größe angenommen sind. Dabei gelten Tauchpumpen mit einer förderbaren maximalen Festkörpergröße von typischerweise höchstens 8 mm als Klarwasserpumpen, wogegen Tauchpumpen mit einer förderbaren maximalen Festkörpergröße von typischerweise mindestens 25 mm als Schmutzwasserpumpen bezeichnet werden. Die maximale Festkörpergröße ist begrenzt durch stromaufwärts der Pumpenkammer liegende, typischerweise zur Seite offene Durchlassöffnungen. Bei aus der EP 1186782 bekannten Klarwasserpumpen ist darüber hinaus ein Flachabsaugbetrieb vorgesehen, für welchen die effektive Höhe seitlicher Durchlassöffnungen auf weniger als 2 mm reduziert wird. Im Fall der EP 1186782 sind Standfüße der Tauchpumpe, welche eine Standebene definieren, nach Exzenterart ausgebildet und höhenveränderlich einstellbar. Alternativ ist ein den unteren Teil des Pumpengehäuses umgebender Ring vorgesehen, welcher auf unterschiedliche Höhen über der durch die Unterseite des Pumpengehäuses gebildete Standebene einstellbar ist und dabei seitliche Durchlassöffnungen des Pumpengehäuses in unterschiedlichem Ausmaß verdeckt. Der Ring muss durch eine Ringdichtung gegen das Gehäuse abgedichtet sein, um das Ansaugen von Luft über dem Niveau der die Pumpe umgebenden Wassers zu vermeiden.For submersible pumps, clear water pumps and dirty water pumps are differentiated according to the size of solids which can be conveyed by the pump to the pumped water, with solid bodies in spherical form and their diameter being assumed to be the size for classification. Submersible pumps with a maximum solids size of typically at most 8 mm can be used as clear water pumps, whereas submersible pumps with a maximum solids size of at least 25 mm that can be conveyed are referred to as dirty water pumps. The maximum solids size is limited by passages located upstream of the pump chamber, typically open to the side. At from the EP 1186782 known clear water pumps, a Flachabsaugbetrieb is also provided, for which the effective height of lateral passage openings is reduced to less than 2 mm. In the case of EP 1186782 are feet of the submersible pump, which define a level, trained after Exzenterart and adjustable in height. Alternatively, a surrounding the lower part of the pump housing ring is provided, which is adjustable to different heights above the formed by the bottom of the pump housing level level and thereby lateral passage openings of the Pump housing covered to varying degrees. The ring must be sealed against the housing by a ring seal to prevent the intake of air above the level of the water surrounding the pump.

Die DE 10 2005 031 420 A1 zeigt eine Tauchpumpe, welche im unteren Bereich des Pumpengehäuses einen Korb mit einem Boden und einer das Pumpengehäuse umgreifenden Wand aufweist. Das Pumpengehäuse ist über eine Verbindung nach Art einer Bajonettführung zwischen einer oberen Position für Schmutzwasserbetrieb und einer unteren Position für Klarwasserbetrieb relativ zu dem Korb verlagerbar. In der oberen Position kann Wasser durch große Öffnungen in der Wand des Korbes angesaugt werden, welche in der unteren Position des Pumpengehäuses blockiert sind. In der unteren Position wird Wasser durch an der Unterseite des Korbbodens ausgesparte Kanäle und eine Gitteröffnung im Korbboden angesaugt.The DE 10 2005 031 420 A1 shows a submersible pump, which in the lower part of the pump housing has a basket with a bottom and a pump housing enclosing wall. The pump housing is displaceable over a bayonet-type connection between an upper dirty water operation position and a lower clear water operation position relative to the basket. In the upper position, water can be sucked through large openings in the wall of the basket, which are blocked in the lower position of the pump housing. In the lower position, water is sucked through recessed channels at the bottom of the basket bottom and a grid opening in the bottom of the basket.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde eine flexibel einsetzbare Tauchpumpe anzugeben.The present invention has for its object to provide a flexible submersible pump.

Die Erfindung ist im unabhängigen Anspruch beschrieben. Die abhängigen Ansprüche enthalten vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung.The invention is described in the independent claim. The dependent claims contain advantageous refinements and developments of the invention.

Durch die Veränderbarkeit der Öffnungsweite der stromaufwärts der Pumpenkammer liegenden und die maximale Größe von durch die Tauchpumpe förderbaren Festkörpern bestimmenden Durchlassöffnungen zwischen einer ersten Öffnungsweite für Schmutzwasserbetrieb und einer zweiten Öffnungsweite für Klarwasserbetrieb mit wenigstens einer, vorzugsweise mehreren Zwischenstellungen ergibt sich vorteilhafterweise ein erweiterter Einsatzbereich mit nur einer Tauchpumpe. Die Veränderung der Öffnungsweite erfolgt über relativ zu dem Pumpengehäuse zwischen einer ersten Stellung und einer zweiten Stellung verlagerbaren Verstellmitteln, wobei sich in der ersten Stellung der Verstellmittel die erste Öffnungsweite und in der zweiten Stellung der Verstellmittel die zweite Öffnungsweite der Durchlassöffnungen ergeben. Die Werte für die Öffnungsweiten in den Zwischenstellungen liegen zwischen der ersten Öffnungsweite und der zweiten Öffnungsweite.Due to the changeability of the opening width of the upstream of the pump chamber lying and the maximum size of submersible pumpable solids determining passage openings between a first opening width for dirty water operation and a second opening width for clear water operation with at least one, preferably more intermediate positions advantageously results in an extended application area with only a submersible pump. The change in the opening width is carried out via relatively movable to the pump housing between a first position and a second position adjusting means, resulting in the first position of the adjusting the first opening width and in the second position of the adjusting the second opening width of the passage openings. The values for the opening widths in the intermediate positions are between the first opening width and the second opening width.

Die Öffnungsweiten der Durchlassöffnungen seien dabei in gebräuchlicher Weise auf die Durchmesser kugelförmiger Probe-Festkörper bezogen, welche durch die Pumpe in der jeweiligen Stellung der Verstellmittel noch förderbar sind. Die Durchlassöffnungen weisen aber in der Regel keinen kreisförmigen Querschnitt quer zur Strömungsrichtung bei den Durchlassöffnungen auf.The opening widths of the passage openings are in this case usually related to the diameter of spherical sample solids, which can still be conveyed by the pump in the respective position of the adjustment means. However, the passage openings do not generally have a circular cross-section transverse to the flow direction at the passage openings.

Die erste Öffnungsweite beträgt vorteilhafterweise wenigstens 20 mm, insbesondere wenigstens 25 mm für den Schmutzwasserbetrieb der Tauchpumpe. Die zweite Öffnungsweite beträgt vorteilhafterweise höchstens 8 mm, insbesondere höchstens 6 mm für den Klarwasserbetrieb der Tauchpumpe. Die Werte für die Öffnungsweiten in Zwischenstellungen der Verstellmittel liegen zwischen den Werten der ersten Öffnungsweite und der zweiten Öffnungsweite.The first opening width is advantageously at least 20 mm, in particular at least 25 mm for the dirty water operation of the submersible pump. The second opening width is advantageously at most 8 mm, in particular at most 6 mm for the clear water operation of the submersible pump. The values for the opening widths in intermediate positions of the adjusting means are between the values of the first opening width and the second opening width.

Bei der Tauchpumpe kann zusätzlich zu den Betriebsarten Schmutzwasserbetrieb und Klarwasserbetrieb noch eine Betriebsart mit Flachabsaugung bis zu Wasserpegeln von weniger als 2 mm über der Standebene der Tauchpumpe vorgesehen sein.In the submersible pump, in addition to the operating modes dirty water operation and clear water operation, an operating mode with flat suction up to water levels of less than 2 mm above the level of the submersible pump may be provided.

Vorteilhafterweise wird mit der Verstellung der Öffnungsweite auch die Höhe der Eintrittsöffnung in die Pumpenkammer über der Standebene der Tauchpumpe verändert, wobei der ersten Öffnungsweite eine größere Höhe und der zweiten Öffnungsweite eine kleinere Höhe zugeordnet sind. Die Standebene wird dafür vorteilhafterweise nicht durch das Pumpengehäuse, sondern durch die Verstellmittel bestimmt und das Pumpengehäuse mit der Pumpenkammer ist durch Verstellen der Verstellmittel relativ zur Standebene höhenverstellbar.Advantageously, with the adjustment of the opening width and the height of the inlet opening in the pump chamber above the level of the submersible pump changed, wherein the first opening width of a greater height and the second opening width are associated with a smaller height. The level is advantageously not determined by the pump housing, but by the adjustment and the pump housing with the pump chamber is adjustable in height by adjusting the adjustment relative to the level.

In bevorzugter Ausführung ist vorgesehen, dass die Verstellmittel sowohl in ihrer ersten als auch in ihrer zweiten Stellung mit dem Pumpengehäuse verbunden sind. Die Verstellmittel können insbesondere einen im unteren Bereich des Pumpengehäuses angeordneten, das Pumpengehäuse vorzugsweise umgebenden Ring beinhalten. Der Ring kann in vorteilhafter Weiterbildung unten durch eine mit Durchbrüchen ausgestattete Grundplatte abgeschlossen sein, wobei die Grundplatte insbesondere auch als Schutz gegen das versehentliche Eingreifen eines Benutzers mit der Hand in ein sich drehendes Pumpenlaufrad dienen kann. Die Grundplatte kann Flächendurchbrüche aufweisen, durch welche Wasser durchströmen kann.In a preferred embodiment it is provided that the adjusting means are connected to the pump housing both in their first and in their second position. The adjusting means may in particular comprise a ring arranged in the lower region of the pump housing and preferably surrounding the pump housing. The ring may be completed in an advantageous development below by a base plate equipped with apertures, the base plate can also serve as a protection against the accidental intervention of a user by hand in a rotating pump impeller. The base plate can have surface openings through which water can flow.

Die Grundplatte, welche die Standebene der Pumpe bildet, kann in vorteilhafter Weiterbildung relativ zu dem Ring um dessen Drehachse drehbar an dem Ring gehalten sein. Hierdurch kann der Ring auch bei fest auf einer Grundfläche aufstehender Grundplatte relativ zu der Grundplatte gedreht werden, um die Öffnungsweite der Durchlassöffnungen und/oder den Restwasserpegel zu verändern.The base plate, which forms the level of the pump, can be held in an advantageous development relative to the ring about its axis of rotation rotatably on the ring. As a result, the ring can also be rotated relative to the base plate when the base plate is stationary on a base surface, in order to change the opening width of the passage openings and / or the residual water level.

Eine Verlagerung der Verstellmittel zwischen der ersten und der zweiten Stellung kann vorteilhafterweise einen Bewegungsablauf umfassen, welcher sowohl eine Drehbewegungskomponente um eine im Pumpenbetrieb vertikale Drehachse als auch eine Verschiebungskomponente parallel zu dieser Drehachse jeweils relativ zum Pumpengehäuse, enthält.A displacement of the adjusting means between the first and the second position may advantageously comprise a movement sequence which contains both a rotational movement component about a rotational axis which is vertical in pump operation and a displacement component parallel to this rotational axis, in each case relative to the pump housing.

Ein solcher Bewegungsablauf kann in bevorzugter Ausführung durch eine Gewindeverbindung zwischen dem Pumpengehäuse und den relativ zu diesem verdrehbaren Verstellmitteln gegeben sein. Vorteilhafterweise können die erste und/oder die zweite Stellung der Verstellmittel durch eine oder zwei anschlagbestimmte Endstellungen vorgegeben sein. Zusätzlich sind die Verstellmittel in einer oder mehreren Zwischenstellungen zwischen der ersten und der zweiten Stellung positionierbar.Such a sequence of movements can be given in a preferred embodiment by a threaded connection between the pump housing and the relative to this rotatable adjusting means. Advantageously, the first and / or the second position of the adjusting means can be predetermined by one or two stop-determined end positions. In addition, the adjusting means are positionable in one or more intermediate positions between the first and the second position.

Die Verstellmittel sind in der ersten und der zweiten Stellung sowie wenigstens einer, vorzugsweise mehreren Zwischenstellung relativ zum Pumpengehäuse festlegbar, um das Beibehalten der jeweiligen Stellung im Pumpenbetrieb zu gewährleisten. Eine solche Festlegung kann in vorteilhafter Ausführung reibschlüssig erfolgen, wofür eine elastische Verspannung, insbesondere in bezüglich einer vertikalen Achse radialer Richtung, zwischen Verstellmitteln und Pumpengehäuse vorteilhaft ist. Eine solche radiale Verspannung kann in besonders vorteilhafter Ausführung durch ein in einen radialen Spalt zwischen Verstellmitteln und Pumpengehäuse eingefügtes gummielastisches Reibelement, insbesondere einen gummielastischen Ring in einem Ringspalt gegeben sein. Die Reibungskraft ist so bemessen, dass diese ausreicht, um im Pumpenbetrieb die gewählte Stellung beizubehalten, zugleich aber manuell durch eine Handkraft eines Benutzers überwindbar ist.The adjusting means are fixed relative to the pump housing in the first and the second position and at least one, preferably a plurality of intermediate position, in order to ensure the maintenance of the respective position in the pump operation. Such a determination can take place frictionally in an advantageous embodiment, for which an elastic tension, in particular in relation to a vertical axis radial direction between adjustment and pump housing is advantageous. Such a radial clamping can be given in a particularly advantageous embodiment by an inserted into a radial gap between the adjusting means and the pump housing rubber-elastic friction element, in particular a rubber-elastic ring in an annular gap. The frictional force is sized so that it is sufficient to maintain the selected position in the pump operation, but at the same time manually by a manual force of a user can be overcome.

Eine kraftschlüssige Festlegung kann in bevorzugter Ausführung auch durch eine Feststellschraube erfolgen. Die Feststellschraube, welche vorzugsweise werkzeuglos manuell betätigbar ist, weist vorzugsweise eine im wesentlichen bezüglich einer im Betrieb vertikalen Drehachse radial verlaufende Schraubenachse auf.A frictional attachment can be done in a preferred embodiment by a locking screw. The locking screw, which is preferably operated manually without tools, preferably has a substantially with respect to a vertical axis of rotation in operation radial screw axis.

Zusätzlich oder alternativ zu der reibschlüssigen Festlegung kann auch eine formschlüssige Festlegung der Verstellmittel in einer oder mehreren Stellungen relativ zum Pumpengehäuse vorgesehen sein. Ein Fixierelement kann beispielsweise lösbar mit wenigstens einer Aussparung, Vertiefung, Relief oder Anschlagkante an Verstellmitteln und/oder Pumpengehäuse zusammenwirken und beispielsweise als Stift oder Schraube ausgeführt sein. eine Vertiefung kann in vorteilhafter Ausführung auch nur durch eine Abflachung an einer gewölbten Fläche, insbesondere an einer konvex gewölbten Außenseite des Pumpengehäuses gegeben sein. Weitere Möglichkeiten der reibschlüssigen und/oder kraftschlüssigen, lösbaren Festlegung der Verstellmittel relativ zum Pumpengehäuse sind dem Fachmann an sich bekannt.In addition or as an alternative to the frictional fixing, a positive fixing of the adjusting means in one or more positions relative to the pump housing may also be provided. A fixing element, for example, releasably cooperate with at least one recess, recess, relief or stop edge on adjusting means and / or pump housing and be designed for example as a pin or screw. A depression can be given in an advantageous embodiment only by a flattening on a curved surface, in particular on a convex outside of the pump housing. Other possibilities of frictional and / or non-positive, releasable fixing of the adjusting means relative to the pump housing are known per se to those skilled in the art.

Die Erfindung ist nachfolgend anhand bevorzugter Ausführungsbeispiele unter Bezugnahme auf die Abbildungen noch eingehend veranschaulicht. Dabei zeigt:

Fig. 1
eine Schrägansicht einer Tauchpumpe,
Fig. 2
eine Zusammenbau-Darstellung von Komponenten der Tauchpumpe nach Fig. 1,
Fig. 3
einen Schnitt durch den unteren Bereich der Tauchpumpe nach Fig. 1 für Schmutzwasserbetrieb,
Fig. 4
eine zu Fig. 3 analoge Darstellung für Klarwasserbetrieb,
Fig. 5
eine zu Fig. 3 analoge Darstellung für Flachabsaugung,
Fig. 6
eine schematische Skizze einer Variante von Verstellmitteln.
The invention is illustrated below with reference to preferred embodiments with reference to the figures still in detail. Showing:
Fig. 1
an oblique view of a submersible pump,
Fig. 2
an assembly diagram of components of the submersible pump Fig. 1 .
Fig. 3
a section through the lower area of the submersible pump after Fig. 1 for dirty water operation,
Fig. 4
one too Fig. 3 analog representation for clear water operation,
Fig. 5
one too Fig. 3 analogue representation for flat suction,
Fig. 6
a schematic sketch of a variant of adjusting means.

Fig. 1 zeigt in Schrägdarstellung eine erste Ausführung einer Tauchpumpe TP1. Die Tauchpumpe TP1 ist aus mehreren Komponenten aufgebaut, wobei in der Zusammenbau-Darstellung nach Fig. 2 insbesondere ein Gehäuseoberteil GO und ein Gehäuseunterteil GU des Pumpengehäuses, ein am Pumpengehäuse drehbar gehaltener Ring DR und eine Grundplatte GP unterschieden sind. Die einzelnen Komponenten, insbesondere das Pumpengehäuse, können weiter unterteilt sein, was für die nachfolgende Erläuterung von Ausführungsbeispielen der Erfindung aber nicht weiter von Belang ist. Fig. 1 shows in oblique view a first embodiment of a submersible pump TP1. The submersible pump TP1 is made up of several components, wherein in the assembly diagram after Fig. 2 in particular an upper housing part GO and a lower housing part GU of the pump housing, a rotatably held on the pump housing ring DR and a base plate GP are differentiated. The individual components, in particular the pump housing, may be subdivided further, which is no longer relevant to the following explanation of exemplary embodiments of the invention.

Im Gehäuseoberteil GO sei ein Antriebsmotor untergebracht, welcher ein Pumpen-Laufrad LR um eine im Pumpenbetrieb im wesentlichen vertikal ausgerichtete Rotationsachse RA rotierend antreibt. Das Laufrad LR ragt im zusammen gebauten Zustand des Pumpengehäuses in eine Pumpenkammer LK des Gehäuseunterteils GU, aus welcher ein Ausgangskanal AK zu einem Ausgangsanschluss AA weg führt. Gehäuseoberteil GO und Gehäuseunterteil GU sind typischerweise fest miteinander verbunden und werden vom Benutzer der Tauchpumpe nicht voneinander getrennt. Die Verbindung kann typischerweise über in Fig. 2 nicht mit eingezeichnete Schrauben mit zur Rotationsachse RA im wesentlichen paralleler Schraubenachse erfolgen.In the upper housing part GO, a drive motor is accommodated, which rotatably drives a pump impeller LR about an axis of rotation RA which is essentially oriented vertically in pump operation. The impeller LR protrudes in the assembled state of the pump housing in a pump chamber LK of the housing base GU, from which an output channel AK leads to an output terminal AA away. Upper housing part GO and lower housing part GU are typically firmly connected to each other and are not separated from each other by the user of the submersible pump. The compound can typically be over in Fig. 2 do not take place with drawn screws with the axis of rotation RA substantially parallel screw axis.

An der Außenseite des Gehäuseunterteils GU sind mehrere Abschnitte eines Außengewindes AG angeordnet, welche in diesem Beispielsfall lediglich als in Umfangsrichtung voneinander beabstandete Abschnitte von eine oder zwei Wendelgängen einer Gewindewendel ausgeführt sind. An der Innenfläche des Ringes DR ist ein auf das durch die Abschnitte AG gebildete Außengewinde abgestimmtes Innengewinde IG ausgebildet, welches mit dem Außengewinde AG in der Weise zusammen wirkt, dass der Ring DR durch Ineinandergreifen des Außengewindes AG und des Innengewindes IG an dem Gehäuseunterteil GU über eine Gewindeverbindung gehalten und relativ zum Gehäuseunterteil GU um eine Drehachse DA drehbar ist. Bei bestehender Gewindeverbindung zwischen Außengewinde AG und Innengewinde IG bewirkt eine Drehung des Ringes DR um die Drehachse DA relativ zum Gehäuseunterteil GU zugleich eine Veränderung der Position des Rings DR relativ zum Gehäuseunterteil GU in im Betrieb typischerweise vertikaler z-Richtung. Die Achse R des in Fig. 2 mit eingezeichneten Koordinatenkreuzes bezeichnet die Radialrichtung relativ zur Drehachse DA.On the outside of the lower housing part GU, a plurality of sections of an external thread AG are arranged, which are carried out in this example only as circumferentially spaced portions of one or two helical turns of a thread helix. On the inner surface of the ring DR on the formed by the sections AG external thread tuned internal thread IG is formed, which cooperates with the external thread AG in such a way that the ring DR by engagement of the external thread AG and the internal thread IG on the housing lower part GU held by a threaded connection and is rotatable relative to the housing bottom part GU about a rotation axis DA. In existing threaded connection between external thread AG and internal thread IG causes a rotation of the ring DR about the axis of rotation DA relative to the housing base GU at the same time a change in the position of the ring DR relative to the housing base GU in the operation typically vertical z-direction. The axis R of in Fig. 2 with the coordinates shown in cross designates the radial direction relative to the axis of rotation DA.

Mit dem Ring DR kann eine Grundplatte GP verbunden sein. Die Grundplatte GP kann einteilig mit dem Ring DR ausgeführt sein, ist aber vorzugsweise wie in Fig. 2 dargestellt ein eigenständiges Bauteil, welches unten an dem Ring DR befestigbar ist. Für die Befestigung kann beispielsweise vorgesehen sein, dass in der Grundplatte GP Stecklöcher GB ausgebildet sind, durch welche Sicherungsstifte SS, welche auch als Drähte ausgeführt sein können, in Richtung der unterbrochen dargestellten Linien einsteckbar sind. Die Sicherungsstifte SS wirken mit Aussparungen SA am Umfang des Rings DR in dessen unterem Bereich zusammen und halten die Grundplatte GP an der Unterseite des Rings DR und fixieren die Grundplatte GP in bezüglich der Drehachse DA axialer Richtung relativ zum Ring DR.With the ring DR, a base plate GP can be connected. The base plate GP may be made integral with the ring DR, but is preferably as in FIG Fig. 2 illustrated an independent component, which is fastened to the bottom of the ring DR. For the attachment can be provided, for example, that in the base plate GP plug holes GB are formed, through which locking pins SS, which can also be designed as wires, in the direction of the lines shown broken are inserted. The locking pins SS cooperate with recesses SA on the circumference of the ring DR in its lower region and hold the base plate GP on the underside of the ring DR and fix the base plate GP with respect to the axis of rotation DA axial direction relative to the ring DR.

In der Mitte der Grundplatte ist ein Gitter ausgebildet, durch welches Wasser insbesondere in einem anhand von Fig. 5 noch näher beschriebenen Betrieb für Flachabsaugung strömen kann. Das Gitter ist von einer gegenüber der Oberseite PP der Grundplatte vertieften Ringfläche GG umgeben. An der Unterseite der Grundplatte sind flache Freiräume gegen die Standebene der Pumpe ausgebildet, welche einen Wasserstrom aus der Umgebung der Pumpe zu dem Gitter GI unter der Grundplatte GP hindurch ermöglichen.In the middle of the base plate, a grid is formed, through which water in particular in a reference to Fig. 5 to be described in more detail for Flachabsaugung described. The grid is surrounded by an opposite the top PP of the base plate recessed annular surface GG. On the underside of the base plate flat spaces are formed against the level of the pump, which allow a flow of water from the environment of the pump to the grid GI under the base plate GP through.

In vorteilhafter Ausführung können die Aussparungen SA umlaufende Ringnuten im unteren Bereich des Rings DR bilden, wodurch der Ring DR bei bleibendem Eingriff der Sicherungselemente relativ zu der Grundplatte GP um die Drehachse DA verdreht werden kann. Dadurch kann bei fest auf einer Grundfläche aufstehender Grundplatte GP der Ring DR um die Drehachse gedreht werden, während die Grundplatte GP, welche die Standebene der Pumpe bildet, unverdreht auf der Grundfläche stehen bleibt.In an advantageous embodiment, the recesses SA can form circumferential annular grooves in the lower region of the ring DR, as a result of which the ring DR can be rotated about the axis of rotation DA during permanent engagement of the securing elements relative to the baseplate GP. As a result, with the base plate GP standing firmly on a base surface, the ring DR can be rotated about the axis of rotation, while the base plate GP, which forms the level of the pump, remains undrilled on the base surface.

In dem Ring DR sind von dessen unterer Kante aus mehrere Aussparungen OR eingebracht. In der Grundplatte GP sind Aussparungen OP vorgesehen, welche bei am Ring DR gehaltener Grundplatte GP zusammen mit den Aussparungen OR Durchlassöffnungen DO bilden. Die Höhe der Durchlassöffnungen DO über der Oberseite PP der Grundplatte GP ist in Fig. 1 mit HO bezeichnet.In the ring DR of the lower edge of several recesses OR are introduced. In the base plate GP recesses OP are provided, which together with the recesses OR form passage openings DO when held on the ring DR base plate GP. The height of the passage openings DO above the top PP of the base GP is in Fig. 1 designated HO.

In Fig. 1 ist der Ring DR in einer relativ zum Gehäuseunterteil GU tiefen ersten Stellung positioniert und in dieser Stellung für den Pumpenbetrieb als Schmutzwasserpumpe relativ zum Pumpengehäuse festgelegt. Die Festlegung erfolgt im skizzierten Beispiel mittels einer Klemmschraube KS, welche in eine Gewindebohrung UB des Rings DR eingeschraubt ist und gegen die Außenfläche des Gehäuseunterteils GU verspannt werden kann. An der Außenfläche des Gehäuseunterteils können hierfür vorteilhafterweise bevorzugte Flächen ausgewiesen sein, welche bestimmte bevorzugte Drehstellungen des Rings DR um dessen Drehachse DA vorgeben, beispielsweise wie skizziert durch Abflachungen GA einer gewölbten Seitenwand des Unterteils GU des Pumpengehäuses. Es kann aber auch vorgesehen sein, dass der Ring DR in beliebigen Drehstellungen um die Drehachse DA relativ zum Gehäuseunterteil des Pumpengehäuses festlegbar ist.In Fig. 1 is the ring DR positioned in a relative to the housing lower part GU deep first position and set in this position for pump operation as a dirty water pump relative to the pump housing. The determination is made in the example outlined by means of a clamping screw KS, which is screwed into a threaded bore UB of the ring DR and can be clamped against the outer surface of the housing base GU. On the outer surface of the housing lower part can advantageously be designated for this purpose preferred surfaces which dictate certain preferred rotational positions of the ring DR about the axis of rotation DA, for example as outlined by flats GA a curved side wall of the lower part GU of the pump housing. However, it can also be provided that the ring DR can be fixed in any rotational position about the axis of rotation DA relative to the lower housing part of the pump housing.

Fig. 3 zeigt für die in Fig. 1 dargestellte erste Stellung des die Verstellmittel oder zumindest einen Teil der Verstellmittel bildenden Rings DR einen Schnitt durch den unteren Bereich der Tauchpumpe. Die Unterseite der Grundplatte GP bildet eine Standebene SE, welche typischerweise im Pumpenbetrieb zumindest annähernd horizontal ausgerichtet ist. Bei in der Pumpenkammer LK rotierendem Laufrad LR wird Wasser durch eine untere Eintrittsöffnung EO der Pumpenkammer angesaugt und über den in Fig. 1 dargestellten Ausgangskanal AK zum Ausgangsanschluss AA der Pumpe gefördert. Die Unterkante UK des Gehäuseunterteils befindet sich in dieser ersten Stellung des Drehrings vorzugsweise oberhalb der Oberkante der Aussparungen OR, so dass die in Fig. 1 mit HO bezeichnete Höhe der Durchlassöffnungen DO vollständig als lichte Höhe HS zum Ansaugen von Wassern einschließlich mit diesem transportierten Festkörpern zur Verfügung steht. Sofern die Querabmessung der Durchlassöffnungen DO kleiner ist als deren Höhe HL, bestimmt diese Breite der Durchlassöffnungen die Öffnungsweite der Durchlassöffnungen und den maximalen Durchmesser von förderbaren Festkörpern. Der Durchmesser der Eintrittsöffnung EO in die Pumpenkammer ist zumindest um ein geringes Maß größer als die maximale Öffnungsweite der Durchlassöffnungen DO, so dass größere Festkörper bereits an den Durchlassöffnungen DO abgehalten und nicht innerhalb des Rings DR die Eintrittsöffnung EO verstopfen können. Die Unterkante UK des Gehäuseunterteils GU liegt im skizzierten Beispiel in der ersten Stellung der den Drehring DR beinhaltenden Verstellmittel oberhalb der Oberkante der Aussparungen OR, so dass deren Öffnungsweite durch das Gehäuseunterteil nicht eingeschränkt ist. Eine Oberkante RO des Rings DR ist von einer Unterkante KO des Oberteils des Pumpengehäuses um einen Abstand DS vertikal beabstandet, welcher größer ist als die Höhe HS der Durchlassöffnungen. Fig. 3 shows for the in Fig. 1 illustrated first position of the adjusting means or at least a part of the adjusting means forming the ring DR a section through the lower portion of the submersible pump. The underside of the base plate GP forms a level plane SE, which is typically aligned at least approximately horizontally in pump operation. When rotating in the pump chamber LK impeller LR water is sucked through a lower inlet opening EO of the pump chamber and over the in Fig. 1 shown output channel AK to the output port AA pump promoted. The lower edge of the housing lower part is preferably located in this first position of the rotary ring above the upper edge of the recesses OR, so that in Fig. 1 with HO designated height of the passage openings DO completely as a clear height HS for sucking water including transported with this solid is available. If the transverse dimension of the passage openings DO is smaller than its height HL, this width of the passage openings determines the opening width of the passage openings and the maximum diameter of conveyable solids. The diameter of the inlet opening EO in the pump chamber is at least by a small amount greater than the maximum opening width of the passage openings DO, so that larger solids already held at the passage openings DO and can not clog the inlet opening EO within the ring DR. The lower edge of the lower housing part GU is in the example sketched in the first position of the rotary ring DR containing adjusting means above the upper edge of the recesses OR, so that the opening width is not limited by the lower housing part. An upper edge RO of the ring DR is vertically spaced from a lower edge KO of the upper part of the pump housing by a distance DS which is larger than the height HS of the passage openings.

Durch Drehen des Rings DR in dem in Fig. 1 und Fig. 2 mit DB bezeichneten Bewegungsablauf, welcher eine Drehung um die Drehachse DA mit gleichzeitiger Bewegung des Rings in zur Drehachse DA paralleler Richtung beinhaltet, kann der Ring DR in die in Fig. 4 in zu Fig. 3 analoger Schnittzeichnung dargestellte zweite Stellung der Verstellmittel gebracht werden. In dieser zweiten Stellung des Rings DR relativ zum Pumpengehäuse ist die lichte Höhe der Durchlassöffnungen DO durch die Unterkante UK des Gehäuseunterteils eingeschränkt auf einen Wert HK, welcher beispielsweise maximal 8 mm, insbesondere maximal 6 mm beträgt. In dieser zweiten Stellung des Rings DR ist somit auch der Durchmesser von durch die Durchlassöffnung DO ansaugbaren Festkörpern auf diese Maße beschränkt und die Pumpe arbeitet wie eine Klarwasserpumpe. Das Pumpengehäuse ist in der zweiten Stellung näher an der Standebene SE als in der ersten Stellung und die Oberkante RO des Rings DR ist um ein reduziertes Maß DK von der Unterkante UG des Oberteils GO des Gehäuses beabstandet.Turn the ring DR in the in Fig. 1 and Fig. 2 DB designated movement, which includes a rotation about the axis of rotation DA with simultaneous movement of the ring in parallel to the axis of rotation DA direction, the ring DR in the in Fig. 4 in to Fig. 3 analog sectional view shown second position of the adjusting means are brought. In this second position of the ring DR relative to the pump housing, the clear height of the passage openings DO is limited by the lower edge UK of the housing lower part to a value HK, which is for example at most 8 mm, in particular at most 6 mm. In this second position of the ring DR, the diameter of solids which can be sucked through the passage opening DO is therefore limited to these dimensions, and the pump works like a clear water pump. In the second position, the pump housing is closer to the level SE than in the first position, and the upper edge RO of the ring DR is spaced a reduced distance DK from the lower edge UG of the upper part GO of the housing.

Im dargestellten vorteilhaften Beispiel ragt noch ein Kragen KR von der Unterseite der Pumpenkammer nach unten, welcher gegenüber der Eintrittsöffnung EO in die Pumpenkammer radial bezüglich der Rotationsachse RA um ein geringes Maß beabstandet sein kann und umlaufend um die Eintrittsöffnung ausgebildet ist. Ein solcher an die Unterseite der Pumpenkammer angeformter Kragen kann das Niveau über der Standebene SE, bis zu welchem Wasser durch die Pumpe abgesaugt werden kann, noch weiter absenken, so dass die Pumpe auch zur Flachabsaugung eingesetzt werden kann.In the illustrated advantageous example still protrudes a collar KR from the bottom of the pump chamber down, which can be spaced relative to the inlet opening EO into the pump chamber radially with respect to the axis of rotation RA by a small amount and is formed circumferentially around the inlet opening. Such an integrally formed on the underside of the pump chamber collar can lower the level above the level SE, to which water can be sucked by the pump, even further, so that the pump can also be used for Flachabsaugung.

Eine solche Flachabsaugstellung ist in Fig. 5 skizziert und kann durch Weiterdrehen des Rings DR um die Drehachse DA über die zweite Stellung nach Fig. 4 hinaus eingestellt werden. Die Drehung kann hierbei beispielsweise begrenzt sein durch Anschlag der oberen Kante RO des Rings DR an einer untere Kante UO des Gehäuseoberteils GO. Eine Begrenzung des Bewegungsablaufs ist alternativ oder gleichzeitig auch durch Anschlag der Unterkante des Gehäuseunterteils an der Oberseite PP am Ring DR gehaltenen Grundplatte GP oder durch andere, dem Fachmann an sich bekannte Mittel möglich. Der Kragen KR um die Eintrittsöffnung EO steht im wesentlichen auf der abgesenkten Ringfläche GG auf. Ein Wasserstrom durch die Aussparungen OR ist durch die Anlage der Unterkante UK des Unterteils GU oder Unterseite der Pumpenkammer an der Oberseite PP der Grundplatte oder insbesondere durch Anlage des Kragens KR an der abgesenkten Ringfläche GG praktisch unterbunden und Wasser strömt unter der Grundplatte durch dort über der Standebene SE ausgebildete Freiräume BK zur Mitte der Grundplatte und durch das Gitter GI in die Eintrittsöffnung EO der Pumpenkammer LK. Eine Restwasserhöhe HF, bis zu welcher die Pumpe in dieser Flachabsaugstellung Wasser aus der Umgebung absaugen kann ist bei hinreichend luftdichtem Abschluss des vorherigen Strömungsweges oberhalb der Grundplatte GP durch die Höhe der Freiräume BK, ansonsten durch die Höhe des Kragens KR um die Eintrittsöffnung EO über der Standebene bestimmt. Die Restwasserhöhe HF beträgt vorteilhafterweise nicht mehr als 3 mm, insbesondere nicht mehr als 2 mm.Such a flat suction position is in Fig. 5 sketched and can by further rotation of the ring DR about the axis of rotation DA on the second position to Fig. 4 Be set out. For example, the rotation may be limited by abutment of the upper edge RO of the ring DR at a lower edge UO of the housing top part GO. A limitation of the sequence of movements is alternatively or simultaneously also possible by abutment of the lower edge of the lower housing part on the upper side PP held on the ring DR base plate GP or by other means known in the art per se. The collar KR around the inlet opening EO is substantially on the lowered annular surface GG. A water flow through the recesses OR is practically prevented by the installation of the lower edge UK of the lower part GU or lower side of the pump chamber on the upper side PP of the base plate or in particular by contact of the collar KR on the lowered annular surface GG and water flows under the base plate through there over the Stand level SE trained free spaces BK to the center of the base plate and through the grid GI in the inlet opening EO of the pump chamber LK. A residual water level HF, up to which the pump in this Flachabsaugstellung can suck water from the environment is at sufficiently airtight conclusion of the previous flow path above the base GP by the height of the free spaces BK, otherwise by the height of the collar KR to the inlet EO on the Level determined. The residual water level HF is advantageously not more than 3 mm, in particular not more than 2 mm.

Zwischen der in Fig. 3 dargestellten ersten Stellung der Verstellmittel für Schmutzwasserbetrieb und der in Fig. 4 dargestellten zweiten Stellung für Klarwasserbetrieb der Tauchpumpe kann der Ring DR vorteilhafterweise auch in anderer Position relativ zum Pumpengehäuse in einer oder mehreren Zwischenstellungen eingestellt und z. B. mittels der Klemmschraube KS gegen unbeabsichtigtes Verdrehen fixiert werden, wodurch sich jeweils andere Öffnungsweiten der Durchlassöffnungen ergeben. Durch die Fixierbarkeit einer gewählten Stellung des Drehrings bleiben Größe der Durchflussöffnungen und Restwasserpegel im Pumpenbetrieb erhalten. Die unterschiedlichen Öffnungsweiten der Durchlassöffnungen sind korreliert mit der Höhe der Eintrittsöffnung EO der Pumpenkammer über der Standebene SE, so dass sich auch je nach Stellung des Rings DR relativ zum Pumpengehäuse auch unterschiedliche Wasserpegel ergeben, bis zu welchen die Pumpe Wasser aus der Umgebung absaugen kann.Between the in Fig. 3 shown first position of the adjusting means for dirty water operation and in Fig. 4 shown second position for clear water operation of the submersible pump, the ring DR advantageously also set in a different position relative to the pump housing in one or more intermediate positions and z. B. by means of the clamping screw KS against unintentional twisting, resulting in each case different opening widths of the passage openings. Due to the fixability of a selected position of the rotary ring size of the flow openings and residual water levels remain in pump operation. The different opening widths of the passage openings are correlated with the height of the inlet opening EO the pump chamber above the level SE, so that also depending on the position of the ring DR relative to the pump housing, different water levels result, up to which the pump can suck water from the environment.

Fig. 6 zeigt schematisch einen unteren Abschnitt PU eines Pumpengehäuses und einen an diesem über eine Gewindeverbindung gehaltenen und höhenverstellbaren Ring RR, welcher wiederum mittels einer Schrauben-Drehbewegung DB relativ zum Pumpengehäuse verlagert werden kann. In diesem Fall ist ein sich mehrfach um das Pumpengehäuse windendes Außengewinde PA an der Außenwand des Pumpengehäuses PU ausgebildet und ein Innengewinde PI an der Innenwand des Ringes RR ist nur in geringem Gewindeumfang, beispielsweise nur einmal um eine Drehachse DA gewendelt oder auch hierbei in Abschnitte unterteilt, ausgeführt. In einer Ringnut NU in der Außenwand des Pumpengehäuses ist ein elastisch verformbares Ringelement RD eingefügt, welches an der Innenfläche RI des Ringes RR unter elastischer Vorspannung anliegt und ein Reibelement bildet, dessen Haftreibungskräfte gegenüber der Außenwand des Pumpengehäuses und/oder der Fläche RI des Ringes RR als Haftreibungskraft eine Haltekraft gegen unbeabsichtigte Verdrehung des Ringes RR in der Gewindeverbindung PA, PI relativ zum Pumpengehäuse PU bewirkt. Die Haftreibungskraft ist vorteilhafterweise durch eine Benutzerkraft überwindbar. Das Reibelement RD kann beispielsweise als ein gummielastischer O-Ring ausgeführt sein. Das Reibelement RD braucht aber keine Abdichtfunktion gegen ungewünschtes Ansaugen von Luft über den Spalt mit der Gewindeverbindung zwischen dem Ring RR und dem Pumpengehäuse PU erfüllen, da der minimal erreichbare Wasserpegel in der Umgebung der Tauchpumpe in diesem Fall durch die Unterkante des Pumpengehäuses PU bestimmt ist. Fig. 6 schematically shows a lower portion PU of a pump housing and held on this via a threaded connection and height adjustable ring RR, which in turn can be displaced by means of a screw-rotation movement DB relative to the pump housing. In this case, an external thread PA, which revolves around the pump housing several times, is formed on the outer wall of the pump housing PU, and an internal thread PI on the inner wall of the ring RR is wound only slightly around the circumference, for example only once around an axis of rotation DA or is also divided into sections , executed. In an annular groove NU in the outer wall of the pump housing, an elastically deformable ring element RD is inserted, which rests against the inner surface RI of the ring RR under elastic bias and forms a friction element whose static friction against the outer wall of the pump housing and / or the surface RI of the ring RR as a static friction force a holding force against unintentional rotation of the ring RR in the threaded connection PA, PI causes relative to the pump housing PU. The static friction force is advantageously overcome by a user power. The friction element RD can for example be designed as a rubber-elastic O-ring. However, the friction element RD need not fulfill a sealing function against unwanted suction of air through the gap with the threaded connection between the ring RR and the pump housing PU, since the minimum achievable water level in the vicinity of the submersible pump is determined in this case by the lower edge of the pump housing PU.

In dem Ring RR sind von dessen Unterkante her Aussparungen OS ausgebildet, welche in der in Fig. 6 skizzierten Relativposition zwischen Ring RR und Pumpengehäuse PU die Öffnungsweite von Durchlassöffnungen zum Ansaugen von Wasser mit gegebenenfalls in diesem vorliegenden Festkörpern bestimmen. Durch Verdrehen des Rings RR um das Pumpengehäuse PU über die Gewindeverbindung PA, PI kann die Unterkante UG des Pumpengehäuses abgesenkt werden und die Aussparungen OS teilweise verdecken. Im skizzierten Beispiel sind an der Unterkante UG des Pumpengehäuses PU eigene Aussparungen OK vorgesehen, welche bei in einer zweiten Stellung des Rings RR relativ zum Pumpengehäuse PU vollständig bis zu einer Standebene abgesenkter Unterkante UG des Pumpengehäuses die Öffnungsweiten von Durchlassöffnungen auf einen kleinen Wert entsprechend einem Klarwasserbetrieb der Tauchpumpe beschränken. Auch hier sind wiederum Zwischenstellungen des Rings RR relativ zum Pumpengehäuse PU zwischen der zweiten Stellung und der in Fig. 6 dargestellten ersten Stellung möglich, insbesondere kann der Ring RR stufenlos relativ zum Pumpengehäuse PU verstellt werden. Der Ring RR kann wiederum nach unten durch eine Grundplatte abgeschlossen sein.In the ring RR recesses OS are formed from the lower edge thereof, which in the in Fig. 6 sketched relative position between ring RR and pump housing PU determine the opening width of passage openings for sucking water with optionally present in this solid. By rotating the ring RR around the pump housing PU via the threaded connection PA, PI, the lower edge UG of the pump housing can be lowered and partially cover the recesses OS. In the example outlined, own recesses OK are provided on the lower edge UG of the pump housing PU, which in a second position of the ring RR relative to the pump housing PU completely down to a level lower edge UG of the pump housing, the opening widths of passage openings to a small value corresponding to a clear water operation restrict the submersible pump. Again, intermediate positions of the ring RR are relative to the pump housing PU between the second position and in Fig. 6 shown first position possible, in particular, the ring RR can be adjusted continuously relative to the pump housing PU. The ring RR can in turn be closed down by a base plate.

Die vorstehend und die in den Ansprüchen angegebenen sowie die den Abbildungen entnehmbaren Merkmale sind sowohl einzeln als auch in verschiedener Kombination vorteilhaft realisierbar. Die Erfindung ist nicht auf die beschriebenen Ausführungsbeispiele beschränkt, sondern im Rahmen fachmännischen Könnens in mancherlei Weise abwandelbar.The features indicated above and in the claims, as well as the features which can be seen in the figures, can be implemented advantageously both individually and in various combinations. The invention is not limited to the exemplary embodiments described, but can be modified in many ways within the scope of expert knowledge.

Claims (15)

Tauchpumpe mit einer bezüglich eines Pumpengehäuses (PG) ortsfesten, von einer Standebene (SE) der Tauchpumpe vertikal beabstandeten Pumpenkammer (LK) mit einer in Betriebsposition nach unten weisenden Eintrittsöffnung (EO) und einem in der Pumpenkammer (LK) motorisch rotierend angeordneten Pumpenlaufrad (LR), sowie mit stromaufwärts der Eintrittsöffnung (EO) befindlichen Durchlassöffnungen (DO), deren Öffnungsweite die maximale Partikelgröße förderbarer Feststoffe bestimmt, mit Verstellmitteln (DR, RR), welche relativ zum Pumpengehäuse (PG) zwischen einer ersten Stellung und wenigstens einer zweiten Stellung verlagerbar sind, wobei sich in der ersten Stellung eine erste Öffnungsweite der Durchlassöffnungen für einen Schmutzwasserbetrieb der Tauchpumpe und in der zweiten Stellung eine demgegenüber kleinere zweite Öffnungsweite der Durchlassöffnungen für einen Klarwasserbetrieb der Tauchpumpe ergeben, dadurch gekennzeichnet, dass die Verstellmittel in wenigstens eine weitere Stellung, welche von der ersten und der zweiten Betriebsstellung verschieden ist, relativ zum Pumpengehäuse verlagerbar und in dieser weiteren Stellung festlegbar sind, und in der weiteren Stellung minimale Absaughöhe und/oder maximale Partikelgröße von der ersten und der zweiten Stellung verschieden sind.Submersible pump with a relative to a pump housing (PG) fixed, vertically spaced from a level (SE) of the submersible pump chamber (LK) with an operating position downwardly facing inlet opening (EO) and in the pump chamber (LK) motor-rotatably arranged pump impeller (LR ), as well as with the upstream of the inlet opening (EO) located passage openings (DO) whose opening determines the maximum particle size of recoverable solids, with adjusting means (DR, RR) which relative to the pump housing (PG) between a first position and at least a second position displaceable are, wherein in the first position, a first opening width of the passage openings for a dirty water operation of the submersible pump and in the second position a contrast smaller second opening width of the passage openings for a clear water operation of the submersible pump, characterized in that the adjusting means in at least one w eitere position, which is different from the first and second operating position, relative to the pump housing displaced and can be fixed in this further position, and in the further position minimum suction height and / or maximum particle size of the first and the second position are different. Tauchpumpe nach Anspruch 1, dadurch gekennzeichnet, dass die erste Öffnungsweite wenigstens 20 mm, insbesondere wenigstens 25 mm beträgt.Submersible pump according to claim 1, characterized in that the first opening width is at least 20 mm, in particular at least 25 mm. Tauchpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die zweite Öffnungsweite höchstens 8 mm, insbesondere höchstens 6 mm beträgt.Submersible pump according to claim 1 or 2, characterized in that the second opening width is at most 8 mm, in particular at most 6 mm. Tauchpumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in der ersten Stellung der Verstellmittel (DR) die Pumpenkammer (PK) vertikal weiter von der Standebene (SE) beabstandet ist als in der zweiten Stellung.Submersible pump according to one of claims 1 to 3, characterized in that in the first position of the adjusting means (DR), the pump chamber (PK) is further vertically spaced from the standing plane (SE) than in the second position. Tauchpumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Verstellmittel (DR) über eine Gewindeverbindung (AG, IG) mit dem Pumpengehäuse (PG) verbunden und um eine im Betrieb vertikale Drehachse (DA) relativ zum Pumpengehäuse (PG) undrehbar sind, wobei eine Verdrehung der Verstellmittel über die Gewindeverbindung (IG, AG) mit einer Höhenverlagerung des Pumpengehäuses (PG) relativ zu der Standebene (SE) gekoppelt ist.Submersible pump according to one of claims 1 to 4, characterized in that the adjusting means (DR) via a threaded connection (AG, IG) connected to the pump housing (PG) and about a vertical axis of rotation during operation (DA) relative to the pump housing (PG) non-rotatable are, wherein a rotation of the adjusting means via the threaded connection (IG, AG) with a vertical displacement of the pump housing (PG) is coupled relative to the level (SE). Tauchpumpe nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass die Verstellmittel (DR) in wenigstens eine Zwischenstellung zwischen der ersten und der zweiten Stellung bringbar und in dieser festlegbar sind.Submersible pump according to claim 1 to 5, characterized in that the adjusting means (DR) in at least one intermediate position between the first and the second position can be brought and fixed in this. Tauchpumpe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Verstellmittel in eine Flachsaugstellung mit gegenüber der zweiten Stellung niedrigerer minimaler Absaughöhe verlagerbar ist.Submersible pump according to one of claims 1 to 6, characterized in that the adjusting means is displaceable in a Flachsaugstellung with respect to the second position lower minimum suction height. Tauchpumpe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass in zumindest einer der Stellungen eine Festlegung der Verstellmittel (DR) relativ zum Pumpengehäuse (PG) mittels relativ zu dem Pumpengehäuse (PG) und den Verstellmitteln (DR) verlagerbarer Arretiermittel (KS) erfolgt.Submersible pump according to one of claims 1 to 7, characterized in that in at least one of the positions a fixing of the adjusting (DR) relative to the pump housing (PG) by means of relative to the pump housing (PG) and the adjusting means (DR) displaceable locking means (KS) he follows. Tauchpumpe nach Anspruch 8, dadurch gekennzeichnet, dass die Arretiermittel eine um eine bezüglich der Drehachse (DA) radiale Schraubenachse verdrehbare Feststellschraube (KS) enthalten.Submersible pump according to claim 8, characterized in that the locking means comprise a relative to the axis of rotation (DA) radial screw axis rotatable locking screw (KS). Tauchpumpe nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Verstellmittel (RR) in wenigstens einer Stellung relativ zum Pumpengehäuse reibschlüssig festlegbar sind.Submersible pump according to one of claims 1 to 9, characterized in that the adjusting means (RR) are frictionally fixed in at least one position relative to the pump housing. Tauchpumpe nach Anspruch 10, dadurch gekennzeichnet, dass ein Ringelement (RD) aus weichelastischem Material zwischen Pumpengehäuse (PU) und Verstellmittel (RR) eingefügt ist.Submersible pump according to claim 10, characterized in that a ring element (RD) made of soft elastic material between the pump housing (PU) and adjusting means (RR) is inserted. Tauchpumpe nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Verstellmittel einen Ring (DR, RR) um einen unteren Bereich des Pumpengehäuses (PG) bilden.Submersible pump according to one of claims 1 to 11, characterized in that the adjusting means form a ring (DR, RR) around a lower region of the pump housing (PG). Tauchpumpe nach Anspruch 12, dadurch gekennzeichnet, dass der Ring (DR) an seiner Unterkante mit einer die Standebene (SE) bildenden Grundplatte (GP) versehen ist.Submersible pump according to claim 12, characterized in that the ring (DR) is provided at its lower edge with a base plane (SE) forming the base plate (GP). Tauchpumpe nach Anspruch 13, dadurch gekennzeichnet, dass der Ring (DR) relativ zu der Grundplatte (GP) in axialer Richtung der Drehachse (DA) durch Sicherungselemente (SS) fixiert und um die Drehachse (DA) drehbar ist.Submersible pump according to claim 13, characterized in that the ring (DR) relative to the base plate (GP) in the axial direction of the axis of rotation (DA) by securing elements (SS) fixed and is rotatable about the axis of rotation (DA). Tauchpumpe nach Anspruch 14, dadurch gekennzeichnet, dass im unteren Bereich des Rings (DR) eine umlaufende Ringnut (SA) ausgebildet ist, in welcher mit der Grundplatte (GP) verbundene Sicherungselemente (SS) einliegen.Submersible pump according to claim 14, characterized in that in the lower region of the ring (DR) a circumferential annular groove (SA) is formed, in which with the base plate (GP) connected securing elements (SS) einliegen.
EP12195386.3A 2012-12-04 2012-12-04 Immersion pump Active EP2740940B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK12195386.3T DK2740940T3 (en) 2012-12-04 2012-12-04 Submersible
PL12195386T PL2740940T3 (en) 2012-12-04 2012-12-04 Immersion pump
ES12195386T ES2781777T3 (en) 2012-12-04 2012-12-04 Submersible pump
EP12195386.3A EP2740940B1 (en) 2012-12-04 2012-12-04 Immersion pump
PT121953863T PT2740940T (en) 2012-12-04 2012-12-04 Immersion pump
AU2013267008A AU2013267008A1 (en) 2012-12-04 2013-12-04 Immersion pump
HRP20200509TT HRP20200509T1 (en) 2012-12-04 2020-03-27 Immersion pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12195386.3A EP2740940B1 (en) 2012-12-04 2012-12-04 Immersion pump

Publications (2)

Publication Number Publication Date
EP2740940A1 true EP2740940A1 (en) 2014-06-11
EP2740940B1 EP2740940B1 (en) 2020-03-04

Family

ID=47263174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12195386.3A Active EP2740940B1 (en) 2012-12-04 2012-12-04 Immersion pump

Country Status (7)

Country Link
EP (1) EP2740940B1 (en)
AU (1) AU2013267008A1 (en)
DK (1) DK2740940T3 (en)
ES (1) ES2781777T3 (en)
HR (1) HRP20200509T1 (en)
PL (1) PL2740940T3 (en)
PT (1) PT2740940T (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016008510A1 (en) * 2014-07-15 2016-01-21 Alfred Kärcher Gmbh & Co. Kg Immersion pump
CN112922851A (en) * 2021-02-05 2021-06-08 谢志飞 Submersible pump
EP3981989A1 (en) * 2020-10-07 2022-04-13 Husqvarna Ab Mechanism for pump
US20220307495A1 (en) * 2019-05-14 2022-09-29 Ams R&D Sas Device for sucking up liquid from the ground
WO2024239923A1 (en) * 2023-05-22 2024-11-28 宁波君禾智能科技有限公司 Submersible pump
US12297837B2 (en) 2021-09-09 2025-05-13 Techtronic Cordless Gp Submersible pump
EP4667748A1 (en) * 2024-06-18 2025-12-24 Wilo Se Centrifugal pump
EP4667749A1 (en) * 2024-06-18 2025-12-24 Wilo Se Centrifugal pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017021222A1 (en) * 2015-08-03 2017-02-09 Husqvarna Ab Submersible pump with a plurality of discharge hose connectors and discharge hose connector storage means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186782A1 (en) 2000-09-11 2002-03-13 GARDENA Kress + Kastner GmbH Submerisble pump
JP2004285913A (en) * 2003-03-20 2004-10-14 Creator:Kk Large-sized submerged pump for construction site
DE102005031420A1 (en) 2005-07-04 2007-01-18 Al-Ko Kober Ag Combined submerged/flat-suction rotary pump, e.g. for sucking off dirty water/sewage, has an electric drive with a casing, a pump casing and an impeller
DE202011000193U1 (en) * 2010-02-03 2011-03-31 Rosenbauer International Ag submersible pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186782A1 (en) 2000-09-11 2002-03-13 GARDENA Kress + Kastner GmbH Submerisble pump
JP2004285913A (en) * 2003-03-20 2004-10-14 Creator:Kk Large-sized submerged pump for construction site
DE102005031420A1 (en) 2005-07-04 2007-01-18 Al-Ko Kober Ag Combined submerged/flat-suction rotary pump, e.g. for sucking off dirty water/sewage, has an electric drive with a casing, a pump casing and an impeller
DE202011000193U1 (en) * 2010-02-03 2011-03-31 Rosenbauer International Ag submersible pump

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016008510A1 (en) * 2014-07-15 2016-01-21 Alfred Kärcher Gmbh & Co. Kg Immersion pump
US20220307495A1 (en) * 2019-05-14 2022-09-29 Ams R&D Sas Device for sucking up liquid from the ground
EP3981989A1 (en) * 2020-10-07 2022-04-13 Husqvarna Ab Mechanism for pump
WO2022073657A1 (en) * 2020-10-07 2022-04-14 Husqvarna Ab Mechanism for pump
CN112922851A (en) * 2021-02-05 2021-06-08 谢志飞 Submersible pump
CN112922851B (en) * 2021-02-05 2022-11-11 浙江丰源泵业有限公司 Submersible pump
US12297837B2 (en) 2021-09-09 2025-05-13 Techtronic Cordless Gp Submersible pump
WO2024239923A1 (en) * 2023-05-22 2024-11-28 宁波君禾智能科技有限公司 Submersible pump
EP4667748A1 (en) * 2024-06-18 2025-12-24 Wilo Se Centrifugal pump
EP4667749A1 (en) * 2024-06-18 2025-12-24 Wilo Se Centrifugal pump

Also Published As

Publication number Publication date
PL2740940T3 (en) 2020-07-13
DK2740940T3 (en) 2020-04-06
EP2740940B1 (en) 2020-03-04
PT2740940T (en) 2020-04-02
ES2781777T3 (en) 2020-09-07
HRP20200509T1 (en) 2020-06-26
AU2013267008A1 (en) 2014-06-19

Similar Documents

Publication Publication Date Title
EP2740940A1 (en) Immersion pump
DE69628549T2 (en) CENTRIFUGAL PUMP
DE102008029822A1 (en) pump
DE10349222A1 (en) pumping device
EP1394365A1 (en) Turbocharger shaft sealing
DE3718325C2 (en) DRUM PUMP
DE4428633C2 (en) Peripheral pump for supplying fuel to a vehicle engine
DE19907561B4 (en) Electrically operated pump device with improved air channel design
WO2011079892A1 (en) Submersible pump
EP3199815B1 (en) Centrifugal pump
DE102016123171A1 (en) Impeller and pump using the impeller
DE20300155U1 (en) Water pump motor
DE1528768A1 (en) Liquid conveyor unit
EP0410198A2 (en) Pop-up sprinkler
EP2698544A1 (en) Submerged pump, resting on a ground, with adjustable suction height
DE3015873A1 (en) AUTOMATIC TIMING VALVE FOR WATER DELIVERY CONTROL IN IRRIGATION SYSTEMS
EP3581803A1 (en) Centrifugal pump with adjustment of the clearance between cover and impeller
DE102015115625B4 (en) central oil feed
DE102013101677B4 (en) safety valve
DE102013207321A1 (en) pump unit
WO2018127318A1 (en) Valve arrangement
DE29718219U1 (en) Device for changing the outlet direction for water pumps
EP3171033A1 (en) Multistage centrifugal pump with casing opening for the maintenance of an axial thrust balancing piston
DE1632916A1 (en) Sprinkler
EP4001655B1 (en) Submersible pressure pump for liquid and use thereof

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20121204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20141210

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190715

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20191111

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1240676

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012015826

Country of ref document: DE

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: HR

Ref legal event code: TUEP

Ref document number: P20200509T

Country of ref document: HR

REG Reference to a national code

Ref country code: FI

Ref legal event code: FGE

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 2740940

Country of ref document: PT

Date of ref document: 20200402

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20200324

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20200330

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: HR

Ref legal event code: T1PR

Ref document number: P20200509

Country of ref document: HR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200604

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200605

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200604

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2781777

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20200907

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200704

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012015826

Country of ref document: DE

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20200509

Country of ref document: HR

Payment date: 20201123

Year of fee payment: 9

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20201207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201204

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20200509

Country of ref document: HR

Payment date: 20211129

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200304

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20200509

Country of ref document: HR

Payment date: 20221124

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20221221

Year of fee payment: 11

Ref country code: NL

Payment date: 20221220

Year of fee payment: 11

Ref country code: LU

Payment date: 20221219

Year of fee payment: 11

Ref country code: GB

Payment date: 20221222

Year of fee payment: 11

Ref country code: FR

Payment date: 20221219

Year of fee payment: 11

Ref country code: FI

Payment date: 20221216

Year of fee payment: 11

Ref country code: DK

Payment date: 20221221

Year of fee payment: 11

Ref country code: AT

Payment date: 20221216

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20221220

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20230119

Year of fee payment: 11

Ref country code: CH

Payment date: 20230103

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20221230

Year of fee payment: 11

Ref country code: DE

Payment date: 20221221

Year of fee payment: 11

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20200509

Country of ref document: HR

Payment date: 20231123

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20231127

Year of fee payment: 12

Ref country code: RO

Payment date: 20231127

Year of fee payment: 12

Ref country code: PT

Payment date: 20231120

Year of fee payment: 12

Ref country code: HR

Payment date: 20231123

Year of fee payment: 12

Ref country code: CZ

Payment date: 20231121

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20231123

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502012015826

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20231231

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20240101

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1240676

Country of ref document: AT

Kind code of ref document: T

Effective date: 20231204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20231204

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20231231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240702

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20250124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231205

REG Reference to a national code

Ref country code: HR

Ref legal event code: PBON

Ref document number: P20200509

Country of ref document: HR

Effective date: 20241204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20250604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20231205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241204