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WO2016185059A1 - Équipement doseur - Google Patents

Équipement doseur Download PDF

Info

Publication number
WO2016185059A1
WO2016185059A1 PCT/ES2016/070266 ES2016070266W WO2016185059A1 WO 2016185059 A1 WO2016185059 A1 WO 2016185059A1 ES 2016070266 W ES2016070266 W ES 2016070266W WO 2016185059 A1 WO2016185059 A1 WO 2016185059A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
equipment according
stop
equipment
chamber
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.)
Ceased
Application number
PCT/ES2016/070266
Other languages
English (en)
Spanish (es)
Inventor
Arkaitz Zabalo Ondarra
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.)
Goizper SCL
Original Assignee
Goizper SCL
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
Application filed by Goizper SCL filed Critical Goizper SCL
Publication of WO2016185059A1 publication Critical patent/WO2016185059A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0838—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0877—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0888—Carrying means for knapsack sprayers

Definitions

  • the present invention refers to a spray equipment capable of providing dosed volumes.
  • the present invention refers to how to industrially transform a classic retained pressure lever sprayer (such as those described in Spanish Patent Documents ES1012723U, ES2024847A6, ES1077726U), into a back equipment ( or type "backpack") capable of providing dosed volumes.
  • a classic retained pressure lever sprayer such as those described in Spanish Patent Documents ES1012723U, ES2024847A6, ES1077726U
  • back equipment or type "backpack”
  • Backpack type sprayers as they do not have a handle, require a non-drip valve at the tip of the lance to prevent dripping that unloads the backpack due to the effect of communicating vessels.
  • the drip valve prevents the suction of air from the outside through the tube, since the only possible suction is in the direction of the backpack towards the chamber.
  • the chamber becomes a single volume, in which the air due to its lower weight than the water tends to occupy the upper part of it and is evacuated in the first place, which allows the chamber to lose the air retention capacity and is completely filled with liquid. This phenomenon is called "priming.”
  • the present invention consists of a dispenser comprising a reservoir which in turn comprises a fixed sleeve and a conjugate piston with movement capacity along the jacket and connected the piston with the outlet of the reservoir, and by which
  • the piston has an internal conduit that tightly communicates the inlet with the piston outlet, lacking pressure retaining elements at the inlet to the piston.
  • the invention provides that the connection lacks pressure retaining elements at the piston inlet.
  • the absence of non-return elements simplifies the construction.
  • this duct within the chamber has a volume less than the volume of the jacket or cylinder.
  • said sealed communication between the input and the output is carried out by means of a hollow shaft with its relevant joints.
  • said conduit is coaxial to the piston, and has the same mass as the valve nut that tightens the suction seal.
  • said internal duct comprises a cylindrical part attached to the piston.
  • said internal duct has the same mass as the cylindrical part.
  • it has a lever arm part with a stop, said stop being disposed in the path of the main operating lever, thus limiting the travel of the lever and consequently of the piston.
  • the position of the stop is adjustable along the axis of the lever arm for example with a groove in a sheet welded to the lever arm and in the same direction of the axis of the lever arm.
  • said stop is made with a screw that fits into positions made along said groove and a locking means, for example with a cylindrical nut.
  • said sheet has the aforementioned positions presenting said positions inversely to that of the screw in order to accurately identify and fix, without the risk of involuntary variation, intermediate positions.
  • the cylindrical nut has a through hole in the radial direction at the opposite end of the thread so that a screwdriver or shaft can be introduced therein and thus increase the tightening torque.
  • the sheet has a graduated scale with dose equivalents.
  • Figure 1 shows the perspective view of a dosing device according to the present invention.
  • Figure 2 shows another perspective view of the dosing equipment of Figure 1 and a dosing lance.
  • Figure 3 shows a sectional view of the equipment of Figure 1, along the middle plane showing the interior components.
  • Figure 4 shows an enlarged detail of Figure 3.
  • Figure 5 shows an enlarged detail of the upper part of the chamber of the embodiment shown in the previous figures.
  • Figure 6 shows a perspective view of a body cylindrical used to transform a backpack type spray equipment design to a dosing device.
  • Figures 7 and 8 show enlarged details, in perspective, of the mechanism for regulating the equipment according to the present invention shown in the previous figures.
  • Figure 9 shows a perspective view in which the stop system for the lever travel is shown schematically.
  • Figure 10 schematically shows a top plan view of the screw and plate used to fix the travel stop.
  • Figure 11 shows a perspective view of the plate and the screw.
  • Figure 12 shows another perspective view of the screw.
  • Figure 13 shows a perspective view of the part that forms the base of the screw and comprising the projections that subsequently fit into the recesses of the plate.
  • Figure 14 shows a sectional view of Figure 2 in which the interior elements of a non-return valve are seen.
  • Figures 1 to 14 show an embodiment of geometry dosing equipment derived from a backpack type spray equipment comprising a tank -1- Attachable to the back as a backpack that has a chamber -22- inside that corresponds to the pressure chamber of the retained pressure backpack sprayers (see figure 3).
  • the chamber -22- constitutes a piston that moves along the jacket -7- to drive the liquid out of the equipment.
  • the example shown also presents a suction valve -8- typical of retained pressure sprayers (see figure 4). Unlike the pressure retained spray equipment, it does not, however, have any discharge valve. Therefore, the volume dosed by the dosing device corresponds to the volume of the chamber -22- associated with the suction path -230-, which corresponds to the top-to-bottom path of the chamber -22- (see figure 3).
  • the typical flow valve of the pressure retained spray equipment has been replaced by a cylindrical body -223- which is attached to the chamber -22- preferably by means of a thread -262-.
  • the threading with which the discharge valve is attached to the chamber can be used in the retained pressure backpack type sprayers.
  • the cylindrical body -223- seals tightly with the suction tube -222-.
  • the cylindrical body -223- has a diameter somewhat smaller than that of said suction tube -222-, being inserted inside it.
  • An O-ring -252- ensures the tightness between the two. The tightness ensures the elimination of the pressurized effect of the pressure retained equipment and with it the accumulative capacity of the chamber in these equipment.
  • the use of the suction tube -222- in combination with the cylindrical body -223- also causes it to be reduced dramatically the volume downstream from the suction point to the nozzle, that is, the sum of volumes of the suction tube -222- and the internal tube of the cylindrical body -223- is smaller than that of the cylinder -224-.
  • a main novelty of the present invention is that using a traditional architecture of a piston sprayer, such as the one set out in Spanish patent document ES1077726U, the discharge valve is replaced by a preferably threaded cylindrical body -223- which In addition to tightening the suction joint -233-, it connects tightly with the suction tube -222-. In this way, the pressurizing function is canceled and the downstream volume from the suction point to the nozzle is drastically reduced (suction tube volume -222- + cylindrical body volume -223- ⁇ cylinder volume -224-). With this reduction of the volume of the chamber the final residue is non-existent, since the entire volume of the tank can be sucked and evacuated.
  • Reducing the volume of the chamber by direct output also facilitates priming of the chamber.
  • the Pumping volume (cylinder volume -224-) of a sprayer is normally less than 150 cm (preferably between 25 and 100 cm)
  • the chamber volume is greater than the suction capacity (cylinder volume -224-)
  • both a non-return closure in the chamber discharge valve
  • the chamber volume -223 - + - 222- is reduced below the suction volume -224-. Therefore, it is not necessary to implement additional non-return systems to the drip nozzle to start suction (priming). This simplifies the machine and makes it more robust in terms of obstructions and guarantees uniform dosing.
  • anti-return systems can also be provided.
  • Figures 7 and 8 show a possible solution to limit camera travel -230-.
  • An upper bumper -225- is arranged to travel the lever in the part lever arm -226- so that this stop -225- meets the main drive lever -227- in its travel, thus limiting the travel of the lever arm -226- and consequently the travel of the camera / piston -230-.
  • the lower stop is made between a rib -231- in the upper part of the chamber and the guide nut -232- (see figure 5).
  • the position of the upper stop -225- is adjustable along a groove in a sheet -228- welded to the lever arm -226- and in the same direction as the axis of the lever arm.
  • This stop for example, is made with a screw (type DIN603) -229- with a shape that fits in reverse positions made along this groove and is locked with a -225- cylindrical nut.
  • the sheet -228- has recesses inversely to that of the projections of the screw head -229- in order to identify and fix precisely the predetermined positions without risk of involuntary variation.
  • the sheet -228- has an engraved scale -500- in which the positions with their respective doses can be identified.
  • Figures 9 to 13 show another possible embodiment of the stop -225-, which is slightly different from the embodiment shown in the previous figures. Specifically, the design of the butt head -225- is different, being improved for a better and safer system behavior. The same or similar elements to the previous embodiments have been designated with identical numerals and will not be explained again in detail.
  • the stop -225- is formed by a main body -2259- which has a internal thread -2252- in which a screw -2255- is threaded.
  • the screw -2259- has an elongated head -2254-.
  • the elongated head has dimensions such that it is capable of traversing the slot -2281- of the sheet -228- only in a radial position, such that the stop -225- can only be removed from the sheet -228- in said position radial.
  • the main body -2259- has two projections in the form of battlements -2256- whose shape is conjugated with that of the slot recesses -2281-.
  • the battlements -2256- are angularly offset with respect to the elongated head -2254-.
  • the battlements -2256- can have two heights, in order to further reduce the movements of the stop -225-.
  • the stop -225- ends with a knurled area -2251- to favor the activation of the stop.
  • FIG. 14 shows the inside of a non-return valve -301- comprising a ball -302- shutter and a spring -303- that drives said ball -302-.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un équipement doseur, qui comprend un réservoir comportant à son tour une chemise fixe et un piston conjugué à capacité de mouvement le long de la chemise et reliant le piston et la sortie du réservoir et dans lequel le piston présente un conduit interne qui fait communiquer de manière étanche l'entrée et la sortie du piston.
PCT/ES2016/070266 2015-05-18 2016-04-15 Équipement doseur Ceased WO2016185059A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP201530687 2015-05-18
ES201530687A ES2590335B1 (es) 2015-05-18 2015-05-18 Equipo dosificador

Publications (1)

Publication Number Publication Date
WO2016185059A1 true WO2016185059A1 (fr) 2016-11-24

Family

ID=56015024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2016/070266 Ceased WO2016185059A1 (fr) 2015-05-18 2016-04-15 Équipement doseur

Country Status (2)

Country Link
ES (1) ES2590335B1 (fr)
WO (1) WO2016185059A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112019008137B1 (pt) * 2017-07-20 2023-02-07 Guarany Indústria E Comércio Ltda Dosador de líquidos, acoplável a pulverizadores manuais com sistema de bomba de pistão
ES2926751A1 (es) * 2021-04-20 2022-10-27 Sanz Hermanos Valencia S L Dispositivo de ajuste del volumen de dosificación en una pulverizadora agrícola manual tipo mochila

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1495771A (en) * 1924-01-19 1924-05-27 Pacific R & H Chemical Corp Measuring and spraying apparatus for a volatile fumigant
DE1244461B (de) * 1962-05-18 1967-07-13 Holder Geb Rueckentragbare Spritze
EP0547439A1 (fr) * 1991-12-16 1993-06-23 SAR S.p.A. Distributeur pour substances liquides crémeuses ou pateuses
US5381932A (en) * 1992-04-14 1995-01-17 American Wyott Corporation Condiment pump
DE29521613U1 (de) * 1995-03-31 1997-11-13 Bayer Ag, 51373 Leverkusen Vorrichtung zum Ausbringen von Pflanzenschutzmitteln
US20040007600A1 (en) * 2002-04-02 2004-01-15 Englhard Ronald F. Pump assembly with continuous tube
WO2007040133A1 (fr) * 2005-10-03 2007-04-12 Mika Watanabe Pompe manuelle et conteneur de liquide avec une pompe manuelle
WO2011039196A1 (fr) * 2009-09-29 2011-04-07 Helen Mary Trill Améliorations apportées à des inhalateurs-doseurs pressurisés

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826050A (en) * 1984-11-28 1989-05-02 Murphy Allan P Spraying and dosing apparatus
ES1012723Y (es) * 1989-12-13 1991-04-01 Goizper, S.Coop. Ltda. Pulverizador de productos fitosanitarios, perfeccionado.
ES2024847A6 (es) * 1990-06-08 1992-03-01 Coop Goizper S Mejoras en pulverizadores de palanca a presion retenida.
US5636791A (en) * 1995-07-07 1997-06-10 Gilmour, Inc. Backpack sprayer
ES1077726Y (es) * 2012-09-07 2012-12-26 Coop Goizper S Pulverizador a palanca de presion retenida

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1495771A (en) * 1924-01-19 1924-05-27 Pacific R & H Chemical Corp Measuring and spraying apparatus for a volatile fumigant
DE1244461B (de) * 1962-05-18 1967-07-13 Holder Geb Rueckentragbare Spritze
EP0547439A1 (fr) * 1991-12-16 1993-06-23 SAR S.p.A. Distributeur pour substances liquides crémeuses ou pateuses
US5381932A (en) * 1992-04-14 1995-01-17 American Wyott Corporation Condiment pump
DE29521613U1 (de) * 1995-03-31 1997-11-13 Bayer Ag, 51373 Leverkusen Vorrichtung zum Ausbringen von Pflanzenschutzmitteln
US20040007600A1 (en) * 2002-04-02 2004-01-15 Englhard Ronald F. Pump assembly with continuous tube
WO2007040133A1 (fr) * 2005-10-03 2007-04-12 Mika Watanabe Pompe manuelle et conteneur de liquide avec une pompe manuelle
WO2011039196A1 (fr) * 2009-09-29 2011-04-07 Helen Mary Trill Améliorations apportées à des inhalateurs-doseurs pressurisés

Also Published As

Publication number Publication date
ES2590335B1 (es) 2017-06-27
ES2590335A1 (es) 2016-11-21

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