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EP1911888A2 - Dispositif de fermeture et procédé de fermeture d'un trou dans le sol - Google Patents

Dispositif de fermeture et procédé de fermeture d'un trou dans le sol Download PDF

Info

Publication number
EP1911888A2
EP1911888A2 EP07075870A EP07075870A EP1911888A2 EP 1911888 A2 EP1911888 A2 EP 1911888A2 EP 07075870 A EP07075870 A EP 07075870A EP 07075870 A EP07075870 A EP 07075870A EP 1911888 A2 EP1911888 A2 EP 1911888A2
Authority
EP
European Patent Office
Prior art keywords
tool
plate part
locking
opening
locking means
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
EP07075870A
Other languages
German (de)
English (en)
Other versions
EP1911888B1 (fr
EP1911888A3 (fr
Inventor
Wouter Ent
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.)
TBS Soest BV
Original Assignee
TBS Soest BV
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 claimed from NL1032660A external-priority patent/NL1032660C2/nl
Application filed by TBS Soest BV filed Critical TBS Soest BV
Publication of EP1911888A2 publication Critical patent/EP1911888A2/fr
Publication of EP1911888A3 publication Critical patent/EP1911888A3/fr
Application granted granted Critical
Publication of EP1911888B1 publication Critical patent/EP1911888B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B11/00—Devices preventing keys from being removed from the lock ; Devices preventing falling or pushing out of keys
    • E05B11/02—Devices preventing keys from being removed from the lock ; Devices preventing falling or pushing out of keys before the wing is locked
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/06—Lock wards
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/02—Fastening devices with bolts moving rectilinearly without latching action
    • E05C1/06—Fastening devices with bolts moving rectilinearly without latching action with operating handle or equivalent member moving otherwise than rigidly with the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/006—Locks for use with special keys or a plurality of keys ; keys therefor for rack- or pinion-like keys
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/008—Locks for use with special keys or a plurality of keys ; keys therefor for simple tool-like keys
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch

Definitions

  • the present invention relates to a device and method for closing a hole in the ground.
  • the present invention relates particularly to a manhole cover.
  • a manhole cover When a manhole cover is applied in areas where traffic will drive over the manhole cover, it is important that the manhole cover does not spring upward or become otherwise detached as a result of the traffic travelling thereover.
  • Conventional manhole covers which are normally manufactured from cast iron, have a sufficiently high mass that they are not prone to springing upward when traffic drives thereover.
  • a drawback of these conventional cast-iron covers is that, due to their high mass, they are not easy to handle.
  • lightweight variants In order to increase ease of handling of manhole covers lightweight variants have been developed. A drawback of these lightweight covers is that they are indeed prone to springing upward, and can moreover even be lifted up by a rising (ground)water level.
  • Existing lightweight covers are usually provided with locks arranged in the frame/concrete supporting the cover. With this type of existing lock arranged in the edge of the hole enclosing the cover, a pin is moved out of the edge into the cover by means of a lever mechanism to be operated via a socket screw key.
  • the drawback of these existing locks is that they can be forgotten, whereby a manhole cover can be left unlocked. When such an unlocked manhole cover springs up and comes to lie on for instance a roadway or leaves a hole unclosed, hazardous situations can thereby occur. It is furthermore possible for such lightweight manhole covers to be lifted up in the case of a high groundwater level, and to possibly even float away. This is also undesirable since this too can result in hazardous situations.
  • An object of the present invention is to provide a closing device for closing a hole in a ground, wherein the above stated problems are obviated and in particular a reliable locking mechanism is provided.
  • the closing device for closing a hole in the ground comprising a lightweight plate part for closing the hole in an edge thereof, and locking means for locking and unlocking the plate part relative to the edge, wherein the locking means comprise a mechanism which can be operated via an opening in the plate part.
  • a closing device with a reliable locking mechanism is provided by arranging the locking means for locking and unlocking the plate part relative to the edge in the plate part where these locking means can be operated via an opening.
  • the locking means can be operated with a tool which can be inserted in the opening in the plate part.
  • a tool which can be inserted in the opening in the plate part.
  • the opening in the plate part comprises a non-round form
  • the tool which can be inserted into the non-round opening in the plate part is rotatable between a first insertion position, in which the tool can be inserted and taken out, and a second handling position in which the tool urges the locking means into an unlocked position, and removal of the tool through the non-round opening is prevented.
  • the locking means are in a locked position.
  • the non-round form is for instance a slot-like recess in the plate part behind which the tool hooks in its handling position, whereby the tool can only be taken out of the plate part in a locked position of the locking means.
  • the locking means can be operated such that the locking means are situated in a locked position of the plate part relative to the edge when the tool is situated in an insertion position where it is removable from the opening. This guarantees that, when the tool is removed from the opening of the plate part, the locking means are situated at all times in a locked position in which the plate part is locked relative to the edge. Since the tool cannot be taken out without leaving the closing device in locking position, a very reliable closing device is provided for closing a hole in the ground.
  • the locking means can be operated such that the locking means are situated in an unlocked position of the plate part relative to the edge when the tool is situated in a handling position for handling the plate part in the opening of the plate part.
  • the locking means will be automatically unlocked.
  • a closing device is provided for closing a hole in the ground which unlocks automatically at moments when the plate part must be removed, while at other moments locking of the closing device is guaranteed.
  • the locking means comprise a locking pin which can be engaged with the tool such that the locking pin is moved from a locked position to an unlocked position when the tool is operated for the purpose of taking the plate part out of the hole.
  • the locking means in this preferred embodiment comprise a locking pin which is moved in and out of the plate part when the locking means are brought into the locked position.
  • a hole for receiving the locking pin is arranged in the edge of the hole.
  • the hole arranged in the edge receives the locking pin when it is situated in the locked position, thereby locking the plate part relative to the edge.
  • a channel arranged in the peripheral direction of the edge of the hole is arranged in the edge of the hole for the purpose of receiving the locking pin.
  • the opening for receiving the tool in the plate part comprises a borehole.
  • the locking mechanism arranged in the plate part may be situated in a closed housing which has an opening only on the top side for the purpose of receiving a tool, it is recommended that the locking means are placed in a housing which is open on both the top and bottom side. This prevents the possibility of dirt accumulating in the housing of the locking means.
  • At least a part of the locking pin comprises a toothing.
  • a toothing such as for instance a gear rack form
  • the closing device comprises a bush arranged rotatably in the plate part, wherein the bush comprises on its outer periphery a protrusion which can engage with a recess arranged in the locking means.
  • the locking means are displaced by the protrusion situated on the outer periphery of the bush from a locked position of the plate part relative to the edge to an unlocked position of the plate part relative to the edge, and vice versa.
  • the bush comprises an opening in which the tool can be received in an engaging manner in order to effect an engaging contact between the tool and the bush.
  • the locking means comprise a locking pin
  • the recess arranged in the locking pin comprises an inclining surface at least on its outward facing side, i.e. on its side directed toward the edge of the hole in the ground.
  • This inclining surface at least in the position where the plate part is locked relative to the edge, lies substantially perpendicularly of the front side of the protrusion arranged on the outer periphery of the bush.
  • the protrusion hereby acquires a locking property which prevents the possibility of the locking pin being pushed inward from the outer edge to an unlocked position, which is indeed possible for instance in the case of the gear rack.
  • the substantially right-angled contact between the front side of the protrusion and the inclining surface provides in simple manner a locking function which further precludes undesired removal of the plate part. Only by using the correct tool can the bush be rotated, whereby the locking means can be operated via the protrusion.
  • the inclining surface is arranged substantially at an angle of 45° to the longitudinal axis of the locking pin.
  • the locking pin comprises an inclining contact surface.
  • this contact surface and thereby also the locking pin are displaced in a direction transversely of the pushing direction of the tool.
  • the translation movement of the tool is converted via the inclining contact surface into a translation movement of the locking pin substantially transversely of the translation movement of the tool.
  • the locking pin can in this way be moved between an unlocked and locked position.
  • the contact surface makes an angle greater than 45° with the longitudinal axis of the locking pin, this guaranteeing a good conversion of the translation movement of the tool into the translation movement of the locking pin.
  • the plate part is manufactured from plastic, composite or lightweight metal, whereby a lightweight plate part is provided for a closing device for closing the hole in the ground.
  • a lightweight plate part whereby the mass of the plate part can be reduced per square metre by a factor of eight, increases ease of handling relative to the conventional metal, normally cast-iron plate parts.
  • the hole in the ground comprises a drain of a sewer system.
  • Drains of a sewer system in particular are generally placed such that they are readily and freely accessible. As a result such drains will often be situated in areas subjected to vehicular traffic, where the compulsory locking requirement for lightweight covers referred to in the introduction is applicable.
  • the present invention also relates to a closing system comprising a closing device as described above, and a tool which can be inserted into the opening of the plate part, wherein the tool operates the locking means such that the locking means are situated in a locked position of the plate part relative to the edge when the tool is situated in an insertion position where it is removable from the opening, and the locking means are situated in an unlocked position of the plate part relative to the edge when the tool is situated in a handling position for handling the plate part in the opening of the plate part.
  • the present invention further relates to a method for respectively unlocking and locking a lightweight plate part relative to a hole in the ground, comprising the steps of:
  • the tool engages with the locking means such that, during rotation to a position enabling removal of the tool from the opening of the plate part or during the translation movement for removing the tool itself from the opening of the plate part, the tool carries the locking means into a locked position.
  • This method hereby guarantees that the locking means lock the plate part to its edge when a tool is removed from the opening of the plate part.
  • a movement of the tool from the insertion position to the handling position operates the locking means from a locked position to an unlocked position.
  • the tool can only be inserted into and removed from the plate part in the first insertion position, whereby the tool cannot be taken out in the unlocked handling position.
  • the method comprises the step of taking the tool out of the opening of the plate part, wherein the plate part is locked relative to the hole in the ground.
  • the tool is oriented for handling the plate part in the second handling position, and the method further comprises the step of handling, if desired, and placing the plate part in a hole in the ground.
  • the opening in the plate part comprises a non-round form through which the tool can be inserted into and removed from the plate part in the first insertion position.
  • the non-round form prevents the tool from being taken out of the non-round opening of the plate part in the second handling position, in which the locking means are situated in an unlocked position.
  • moving of the tool from the handling position to the insertion position comprises of a rotation movement of the tool which, via a mechanical connection such as a gear rack or via a protrusion, is converted into a translation movement for locking and unlocking the locking means.
  • the handling position for handling the plate part with the tool corresponds with locking means situated in the unlocked position.
  • the insertion position for taking the tool out of the plate part corresponds with locking means situated in a locked position.
  • moving of the tool from a handling position for handling the plate part with the tool to an insertion position for taking the tool out of the plate part comprises of an angular displacement.
  • the angular displacement between the handling position for handling the plate part with the tool and the insertion position for taking the tool out of the plate part is substantially 45°, 90°, 135', 180°, 225°, 270° or 315°.
  • the angular displacement more preferably comprises substantially 90°.
  • the locking means are moved, during removal of the tool from the opening of the plate part, to a locked position relative to the edge of the hole.
  • the translation movement of inserting and removing the tool into and out of the opening of the plate part is converted into a translation movement for unlocking and locking the locking means.
  • FIG. 1-5 The preferred embodiment of figures 1-5 comprises a closing device 1 arranged on hole 2, wherein hole 2 is a manhole having an edge 12.
  • hole 2 is a manhole having an edge 12.
  • cover 4 Arranged in cover 4 is an opening 20 through which a tool 22 can be inserted.
  • Tool 22 comprises a rod 24, a handle 26 and an outer end 28, wherein this outer end comprises a contact surface 30, protrusions 32 and a toothing 34.
  • FIG. 2 shows a sectional view of a cover 4 arranged in edge 12.
  • Cover 4 is of a lightweight plastic type, comprising outer walls 6 and intermediate walls 8.
  • a foam filling 10 is arranged in the internal volume of cover 4, i.e. the volume enclosed by outer walls 6 and intermediate walls 8, in order to impart strength to cover 4.
  • the edge 12 is assembled in similar manner to cover 4, it will be apparent to a skilled person that alternative embodiments of edge 12 are also possible.
  • a seal 14 can also be arranged between cover 4 and edge 12.
  • locking pin 16 In cover 4 locking means comprising a locking pin 16 are arranged in a housing 38.
  • locking pin 16 has over a part of the pin a toothing 36 on which a toothing 34 arranged on outer end 28 of tool 22 can engage in order to enable movement of locking pin 16 between a position locking cover 4 to and unlocking cover 4 from edge 12.
  • Locking pin 16 preferably has a form such that it is arranged form-fittingly in its peripheral direction in its recess of cover 4, for instance by embodying locking pin 16 with a flat side. Because the degree of freedom of the rotation movement of locking pin 16 around its longitudinal axis is fixed, the orientation of locking pin 16 is guaranteed to be such that the toothing 36 arranged in locking pin 16 can be engaged at all times by toothing 34 of tool 22 via the opening.
  • the locking pin 16 In the locked position of cover 4 to edge 12 the locking pin 16 is situated such that the outer end engages in recess 18 of edge 12.
  • recess 18 being a hole, it is recommended to embody recess 18 as
  • recess 18 is a hole
  • An orienting protrusion 40 arranged on cover 4 can be inserted for the purpose of correct positioning of cover 4 into a recess 42, which also comprises a hole, arranged for orienting protrusion 40.
  • recess 18 comprises a channel arranged in peripheral direction in edge 12, whereby the recess 42 shown in figure 2 and recess 18 shown in the same view form the same component.
  • the cover 4 can be placed more flexibly in edge 12, since pin 16 does not have to coincide per se with a specific hole for recess 18.
  • a bias can optionally be exerted on locking pin 16 by a spring (not shown) arranged behind locking pin 16 which ensures that locking pin 16 - even when it is exposed to vibrations as a result of traffic driving over the cover - remains in a locked position.
  • the bias produced by the spring is preferably such that it provides locking pin 16 with sufficient resistance to undesired movement to an open position, but can be easily overcome with tool 22.
  • Figure 3 shows the locking means comprising a housing 38 in which a locking pin 16 is provided over at least a part of which is arranged a toothing 36.
  • housing 38 is open on the underside in order to prevent accumulation of dirt in housing 38.
  • Opening 20 has a form such that tool 22 can only be inserted (insertion positions) and removed in specific positions through opening 20.
  • On outer end 28 of tool 22 is arranged a contact surface 30 which forms a boundary when tool 22 is placed into opening 20.
  • Contact surface 30 is positioned on rod 24 such that - when contact surface 30 makes contact with the top side of housing 38 - toothing 34 engages with toothing 36 of locking pin 16 as shown in figure 4.
  • Protrusions 32 on tool 22 are situated in the position shown in figure 4 such that the tool can be inserted into housing 38 through opening 20.
  • protrusions 32 will be displaced such that a part of housing 38 is situated between contact surface 30 and protrusion 32.
  • the tool is in this way brought into engagement with housing 38 and therefore cover 4, so that with the tool in this position cover 4 can be handled for the purpose of removing or re-placing cover 4 from or onto manhole 2.
  • the closing device according to the present invention in accordance with the above described preferred embodiment provides a closing device for closing a hole in the ground, wherein the locking is such that it is impossible to withdraw tool 22 from cover 4 without leaving cover 4 locked to edge 12.
  • a reliable and safe system is therefore provided which is particularly suitable for avoiding the risk in traffic situations of lightweight covers 4 springing upward or becoming otherwise detached and resulting in hazardous situations.
  • Figures 6A-6C show an alternative embodiment of a closing device according to the invention, comprising a cover 104 which is arranged in an edge 112 of a manhole and thereby closes the manhole.
  • cover 104 Arranged in cover 104 is an opening 120 through which a tool 122 can be inserted.
  • Tool 122 comprises a rod 124, a handle 126 and an outer end 128, wherein this outer end comprises a contact surface 130 and protrusions 132.
  • Locking pin 116 has an inclining contact surface 117 which, in the position of locking pin 116 locking the cover 104 to edge 112, is situated substantially in opening 120.
  • locking pin 16 preferably also leaves a space clear such that dirt, which may have fallen into opening 120, flows out with (rain)water through opening 120 and falls into the manhole.
  • Figures 7A and 7B show a further preferred embodiment, wherein protrusion 232 of the tool drops into the recess of cover 204 (figure 7B) which is also used for locking pin 216. Because no additional recess need be arranged for protrusion 232, this simplifies the design and therefore the manufacture of cover 204.
  • FIGS 8A-8C show an alternative embodiment wherein a bush 346 is arranged between locking pin 316 and tool 322.
  • Bush 346 can be engaged by protrusions 332 of tool 322 via recesses 348 arranged in bush 346.
  • the bush 346 is itself provided with a toothing 350 which is arranged on the outer periphery and which engages on toothing 336 of locking pin 316.
  • Bush 346 is supported on the underside of cover 304 by a flange plate 352.
  • This embodiment has the further advantage that the tool can be given a robust form with two protrusions 332, and in particular does not comprise a vulnerable toothing.
  • locking pin 316 is arranged in this embodiment outside the space of opening 320 in cover 304 directly accessible with a random tool, which makes opening of the locking mechanism with a random tool more difficult.
  • Cover 304 is hereby less susceptible to vandalism.
  • locking pin 316 is moreover better protected from dirt, which will enhance reliability, reduce maintenance and increase lifespan.
  • Figure 8A shows the situation in which locking pin 316 locks cover 304 to edge 312. Recess 348 of bush 346 and recess 320 of cover 304 are mutually aligned such that tool 322 can be brought with its protrusions 332 into engagement through recess 320 with recess 348 of bush 346 (figure 8B).
  • bush 346 will co-rotate with tool 322 via the engagement between protrusions 332 and recess 348.
  • Locking pin 316 is then operated via the engagement between toothing 350 arranged on the bush and toothing 336 of locking pin 316.
  • Figure 8B shows the insertion position
  • figure 8C shows the handling position.
  • protrusions 332 of tool 322 are situated in the position enclosed in cover 304 shown in figure 8C. In this enclosed position tool 322 can be used to remove cover 304 from the edge 312 of the manhole.
  • FIG. 9 shows the situation in which tool 422 is located outside cover 404 and locking pin 416 engages in opening 418 of edge 412 of the hole in the ground. In this position locking pin 416 locks cover 404 to the hole in the ground.
  • a protrusion 450 Arranged on the outer periphery of bush 446 is a protrusion 450 which in the locked position (figures 9A, 9B) makes a preferably perpendicular contact on its front side 451 with an inclining surface 418 of an opening 417 arranged in locking pin 416. Due to this substantially perpendicular contact between surfaces 418 and 451 (figure 9B) the protrusion 450 has a locking function which prevents the possibility of displacing locking pin 416 to an unlocked position by means of exerting an inward directed force thereon. The reliability of the locking is therefore improved by the locking function of protrusion 450, and particularly unlocking of cover 404 by unauthorized persons is prevented.
  • the construction is on the other hand very simple, not susceptible to accumulation of dirt and inexpensive to manufacture.
  • Figure 9A shows the insertion position and figure 10A the handling position, wherein the relative position between tool 422 and opening 420 prevents removal of tool 422 from cover 404.
  • bush 446 Only with tool 422 is it possible to rotate bush 446 from a locked position to an unlocked position. During this rotation the protrusion 450 rotates inside opening 417 away from the inclining surface 418, and protrusion 450 will then make contact with the opposite inclining surface 419. When bush 446 is then rotated further into the position where the front side 451 of protrusion 450 makes a substantially perpendicular contact with inclining surface 419 (figure 10B), locking pin 416 is located in the outermost unlocked position. Because protrusions 432 of tool 422 do not fit through opening 420 in this position, the possibility of tool 422 being removed from plate part 404 in the unlocked position is prevented.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP20070075870 2006-10-10 2007-10-08 Système de fermeture et procédé de fermeture d'un trou dans le sol Not-in-force EP1911888B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1032660A NL1032660C2 (nl) 2006-10-10 2006-10-10 Afsluitinrichting en werkwijze voor het afsluiten van een gat in de bodem.
NL1034000A NL1034000C2 (nl) 2006-10-10 2007-06-18 Afsluitinrichting en werkwijze voor het afsluiten van een gat in de bodem.

Publications (3)

Publication Number Publication Date
EP1911888A2 true EP1911888A2 (fr) 2008-04-16
EP1911888A3 EP1911888A3 (fr) 2010-01-20
EP1911888B1 EP1911888B1 (fr) 2015-03-04

Family

ID=38820187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070075870 Not-in-force EP1911888B1 (fr) 2006-10-10 2007-10-08 Système de fermeture et procédé de fermeture d'un trou dans le sol

Country Status (2)

Country Link
EP (1) EP1911888B1 (fr)
NL (1) NL1034000C2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363555A1 (fr) * 2010-03-03 2011-09-07 Fonderies de Brousseval et Montreuil Dispositif de verrouillage/déverrouillage à inviolabilité améliorée et sa clé pour tampon et pièce de fonderie à ouvrant
CN104179407A (zh) * 2013-05-24 2014-12-03 唐泉涌 一种防盗井盖锁
WO2017203148A1 (fr) * 2016-05-24 2017-11-30 Ej Emea Dispositif de verrouillage et de déverrouillage à l'aide d'une clé d'un tampon sur un cadre avec possibilité de verrouillage automatique sans clé de ce tampon sur le cadre
US20190345740A1 (en) * 2016-11-14 2019-11-14 Hubbell Incorporated Latch locking cover for enclosures
CN111794354A (zh) * 2020-07-14 2020-10-20 河北耀腾路桥工程有限公司 一种稳定型道路排水结构

Citations (2)

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Publication number Priority date Publication date Assignee Title
JPH0493423A (ja) 1990-08-08 1992-03-26 Nejino Mizutani:Kk 施錠装置
DE19632318A1 (de) 1996-08-09 1998-02-12 Lee Eui Keun Verriegelungsvorrichtung für Schacht-Innendeckel

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GB191504612A (en) * 1915-03-24 1915-10-28 Daniel Walter A New or Improved Door or other Bolt.
US1580541A (en) * 1925-06-29 1926-04-13 Warren S Sherman Locking manhole frame and cover
JP2847435B2 (ja) * 1990-12-28 1999-01-20 株式会社フジクラ マンホール等の蓋の施錠装置
DE29700551U1 (de) * 1997-01-14 1997-02-20 Società Italiana Progetti S.r.l., Magenta Schloßvorrichtung
DE19939628A1 (de) * 1999-08-20 2001-02-22 Stahlbau Kurt Klatetzki Gmbh & Verschlußvorrichtung für einen Schacht

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0493423A (ja) 1990-08-08 1992-03-26 Nejino Mizutani:Kk 施錠装置
DE19632318A1 (de) 1996-08-09 1998-02-12 Lee Eui Keun Verriegelungsvorrichtung für Schacht-Innendeckel

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363555A1 (fr) * 2010-03-03 2011-09-07 Fonderies de Brousseval et Montreuil Dispositif de verrouillage/déverrouillage à inviolabilité améliorée et sa clé pour tampon et pièce de fonderie à ouvrant
FR2957109A1 (fr) * 2010-03-03 2011-09-09 Fond De Brousseval Et Montreuil Dispositif de verrouillage/deverrouillage a inviolabilite amelioree et sa cle pour tampon et piece de fonderie a ouvrant
CN104179407A (zh) * 2013-05-24 2014-12-03 唐泉涌 一种防盗井盖锁
WO2017203148A1 (fr) * 2016-05-24 2017-11-30 Ej Emea Dispositif de verrouillage et de déverrouillage à l'aide d'une clé d'un tampon sur un cadre avec possibilité de verrouillage automatique sans clé de ce tampon sur le cadre
FR3051818A1 (fr) * 2016-05-24 2017-12-01 Ej Emea Dispositif de verrouillage et de deverrouillage a l'aide d'une cle d'un tampon sur un cadre avec possibilite de verrouillage automatique sans cle de ce tampon sur le cadre
CN109154167A (zh) * 2016-05-24 2019-01-04 易捷艾玛公司 一种利用钥匙对框架上的孔塞进行锁定和解锁的装置并且无需钥匙即可将此孔塞自动锁定在框架上
CN109154167B (zh) * 2016-05-24 2021-04-13 易捷艾玛公司 一种利用钥匙对框架上的孔塞进行锁定和解锁的装置
US20190345740A1 (en) * 2016-11-14 2019-11-14 Hubbell Incorporated Latch locking cover for enclosures
US12065860B2 (en) * 2016-11-14 2024-08-20 Hubbell Incorporated Latch locking cover for enclosures
US20240384570A1 (en) * 2016-11-14 2024-11-21 Hubbell Incorporated Latch locking cover for enclosures
CN111794354A (zh) * 2020-07-14 2020-10-20 河北耀腾路桥工程有限公司 一种稳定型道路排水结构

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EP1911888A3 (fr) 2010-01-20
NL1034000C2 (nl) 2008-04-14

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