EP0362862A2 - Manhole cover - Google Patents

Manhole cover Download PDF

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Publication number
EP0362862A2
EP0362862A2 EP89118535A EP89118535A EP0362862A2 EP 0362862 A2 EP0362862 A2 EP 0362862A2 EP 89118535 A EP89118535 A EP 89118535A EP 89118535 A EP89118535 A EP 89118535A EP 0362862 A2 EP0362862 A2 EP 0362862A2
Authority
EP
European Patent Office
Prior art keywords
screw
lever
manhole cover
hub
screw lever
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
EP89118535A
Other languages
German (de)
French (fr)
Other versions
EP0362862A3 (en
EP0362862B1 (en
Inventor
Bernhard Weiss
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.)
Aqseptence Group GmbH
Original Assignee
Passavant Werke AG and Co KG
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 Passavant Werke AG and Co KG filed Critical Passavant Werke AG and Co KG
Priority to AT89118535T priority Critical patent/ATE81374T1/en
Publication of EP0362862A2 publication Critical patent/EP0362862A2/en
Publication of EP0362862A3 publication Critical patent/EP0362862A3/en
Application granted granted Critical
Publication of EP0362862B1 publication Critical patent/EP0362862B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02D29/1463—Hinged connection of cover to frame
    • 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

Definitions

  • the invention relates to manhole covers with a hinge and mechanical or hydraulic / pneumatic opening aid and a lock in the closed state.
  • manhole covers are often installed where they must serve as an escape and entry cover. For this purpose, they must be able to be opened and closed easily from above and below.
  • screw fasteners As a closure for such manhole covers. These screw fasteners consist of a bolt to be operated from above and a sash tongue which, when the bolt is actuated, swivels into the closed position under a frame projection and is then braced against this projection. To prevent the sash from loosening automatically when shaken, the stop surface under the projection has an opposite inclination (DECK 75 24 138).
  • the screw bolt which is extended beyond the cam tongue has a screw lever which can be engaged with the screw bolt, which is rotatably mounted on the screw bolt.
  • the screw bolt can now be easily operated from below, so that the sash tongue can be loosened or tensioned.
  • a cross pin inserted into the screw bolt and cross recesses cooperating therewith on the hub of the screw lever preferably serve as the engagement element.
  • the screw lever is at rest preferably disengaged by a compression spring. To tighten or loosen, the screw lever is pulled down into the catches and then turned. If the screw bolt is actuated from above, the screw lever is also rotated by friction until it hits the wall of the shaft, but can then continue to rotate freely.
  • the screw lever has a hub that contains the cross recesses for the cross pin, and that the hub is connected via a horizontal joint to the screw lever having a fork head, which thus hangs freely when not in use and is actuated of the bolt can turn.
  • the hub then no longer contains a compression spring and is constantly engaged. To move it by 90 ° it only needs to be lifted slightly.
  • the shaft lever 1 contains, in a bracket 2, a guided screw bolt 3 with a double-sided sash tongue 4, the rear end of which is supported on an adjustable screw 5.
  • a protrusion 7 is provided, which is gripped by the sash tongue 4.
  • the projection 7 has an angular extension 8, against which the sash tongue strikes when the screw bolt is tightened.
  • a screw lever 9 with hub 10 is freely rotatable.
  • the lower end of the hub 10 has two cross slots 11, which can cooperate with a cross pin 12 when the screw lever 9 is pulled down and locked against the force of the compression spring 13. After a quarter turn, the screw lever is raised, turned back and snapped back into place. This is possible both in the open and in the closed position. The force to open or close the sash is very low due to the reduction in the thread and the lever ratio.
  • the screw bolt 3 can be smooth without thread in the lower section. This enables better guidance of the hub and reduces the risk of the screw lever tilting.
  • Fig. 2 shows the manhole cover 1 and the guidance of the bolt 3 unchanged.
  • the hub 10 'of the screw lever 9' is constantly engaged. Instead of the horizontal lever arm, the hub has a hinge joint 14 in which the fork-shaped head 15 of the screw lever 9 'is mounted.
  • the screw lever hangs down when not in use and does not hit the shaft wall when the screw bolt is turned. To loosen or close the sash from below, swing it up and then turn it 90 °. It can then be snapped out and snapped in again at a 90 ° offset. A special guidance of the hub on the screw bolt is not necessary here.
  • the embodiment according to FIG. 3 contains, at the lower end of the screw bolt 23, a hexagon 24 fastened by means of a transverse pin 22, to which a hexagon socket in the hub 25 of the screw lever 26 corresponds. In the rest position, the screw lever 26 lies on the projecting transverse pin 22.
  • a compression spring 28 and a tubular sleeve 29 are inserted between the collar 27 of the hexagon 24 and the cam tongue 4. The compression spring is used to limit the lower position of the sash tongue, and the compression spring is used to transmit the torque from the hexagon to the sash tongue so that it is pivoted into the release position the moment it is released from the underside of the frame.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Hinges (AREA)
  • Flexible Shafts (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

The invention relates to manhole covers with hinge and opening assistance, which can serve as an escape opening. Screw turnbuckles, which have to be loosened and also locked again from above and below, serve as locking means for the said manhole cover. According to the invention, the screw bolt of the screw turnbuckle possesses a screw lever which can be engaged with the screw bolt via a cross-recessed hub or a polygonal part. The screw lever can be provided with a cardan joint so that, when not in use, it can hang down freely.

Description

Die Erfindung bezieht sich auf Schachtabdeckungen mit Scharnier und mechanischer oder hydraulisch/pneumatischer Öffnungshilfe sowie einer Verriegelung im geschlossenen Zustand. Derartige Schachtabdeckungen werden häufig auch dort eingebaut, wo sie als Flucht- und Einstiegsabdeckung dienen müssen. Zu diesem Zweck müssen Sie von oben und unten leicht geöffnet und geschlossen werden können.The invention relates to manhole covers with a hinge and mechanical or hydraulic / pneumatic opening aid and a lock in the closed state. Such manhole covers are often installed where they must serve as an escape and entry cover. For this purpose, they must be able to be opened and closed easily from above and below.

Es ist bekannt, als Verschluß für derartige Schachtabdeckungen sogenannte Schraubvorreiber zu verwenden. Diese Schraubvorreiber bestehen aus einem von oben zu betätigenden Schraubbolzen und einer Vorreiberzunge, die bei Betätigung des Schraubbolzens in die Verschlußstellung unter einen Rahmenvorsprung schwenkt und danach gegen diesen Vorsprung verspannt wird. Damit sich der Vorreiber bei Erschütterung nicht selbsttätig löst, ist die Anschlagfläche unter dem Vorsprung mit entgegengesetzter Neigung versehen (DECK 75 24 138).It is known to use so-called screw fasteners as a closure for such manhole covers. These screw fasteners consist of a bolt to be operated from above and a sash tongue which, when the bolt is actuated, swivels into the closed position under a frame projection and is then braced against this projection. To prevent the sash from loosening automatically when shaken, the stop surface under the projection has an opposite inclination (DECK 75 24 138).

Um ein Öffnen der Abdeckung von unten zu ermöglichen, ist bei einer vorbekannten Schachtabdeckung dieser Bauart die Vorreiberzunge auf der anderen Seite als Handgriff verlängert. Im Fluchtfall kann der Vorreiber von unten durch Schwenken des Handgriffs gelöst werden (DE-OS 32 48 525). Ein Wiederverschließen von oben ist ohne weiteres möglich, in dem durch Betätigen des Schraubbolzens die Vorreiberzunge in die Schließstellung geschwenkt und anschließend verspannt werden kann.In order to enable the cover to be opened from below, this is the case with a previously known manhole cover of this type Cam tongue extended on the other side as a handle. In the event of flight, the sash can be released from below by swiveling the handle (DE-OS 32 48 525). It can easily be reclosed from above by pivoting the cam tongue into the closed position and then tightening it by operating the screw bolt.

Diese Verschlußbauart hat mehrere Nachteile. Die oben erwähnte Neigung der Anschlagfläche kann hier nicht angewendet werden, weil sich dann der Verschluß im Notfall nicht mehr von unten öffnen ließe. Die Kraft zum Öffnen der verspannten Vorreiberzunge ist trotz des langen Hebelarms sehr hoch. Und schließlich ist ein Wiederverschließen von unten nicht möglich, weil hierzu mehr als nur eine Vierteldrehung der Vorreiberzunge nötig ist.This type of closure has several disadvantages. The above-mentioned inclination of the stop surface cannot be used here, because then the lock could no longer be opened from below in an emergency. The force to open the tensioned cam is very high despite the long lever arm. And finally, reclosing from below is not possible because this requires more than just a quarter turn of the sash tongue.

Die Aufgabe, eine Verriegelung zur Verfügung zu stellen, die sich sowohl von oben als auch von unten leicht öffnen und schließen läßt, wird gemäß der Erfindung nunmehr dadurchgelöst, daß der über die Vorreiberzunge hinaus verlängerte Schraubbolzen einen mit dem Schraubbolzen in Eingriff bringbaren Schraubhebel aufweist, der an dem Schraubbolzen drehbar gelagert ist. Mit diesem Schraubhebel kann nun der Schraubbolzen problemlos von unten betätigt werden, so daß die Vorreiberzunge gelöst oder verspannt werden kann. Als Eingriffselement dient vorzugsweise ein in den Schraubbolzen gesteckter Querstift und damit zusammenarbeitende Kreuzausnehmungen an der Nabe des Schraubhebels. In Ruhestellung wird der Schraubhebel vorzugsweise durch eine Druckfeder ausgerückt. Zum Spannen oder Lösen wird der Schraubhebel nach unten in die Rasten gezogen und dann gedreht. Wird der Schraubbolzen von oben betätigt, so wird der Schraubhebel durch Reibung so weit mitgedreht, bis er an der Wand des Schachts anstößt, kann sich dann aber weiter frei drehen.The object of providing a locking device which can be easily opened and closed both from above and from below is now achieved according to the invention in that the screw bolt which is extended beyond the cam tongue has a screw lever which can be engaged with the screw bolt, which is rotatably mounted on the screw bolt. With this screw lever, the screw bolt can now be easily operated from below, so that the sash tongue can be loosened or tensioned. A cross pin inserted into the screw bolt and cross recesses cooperating therewith on the hub of the screw lever preferably serve as the engagement element. The screw lever is at rest preferably disengaged by a compression spring. To tighten or loosen, the screw lever is pulled down into the catches and then turned. If the screw bolt is actuated from above, the screw lever is also rotated by friction until it hits the wall of the shaft, but can then continue to rotate freely.

Eine andere Bauart sieht vor, daß der Schraubhebel eine Nabe aufweist, die die Kreuzausnehmungen für den Querstift enthält, und daß die Nabe über ein horizontales Gelenk mit dem einen Gabelkopf aufweisenden Schraubhebel verbunden ist, der bei Nichtgebrauch somit frei nach unten hängt und sich beim Betätigen des Schraubbolzens mitdrehen kann. Die Nabe enthält dann keine Druckfeder mehr und ist ständig eingerastet. Zum Umsetzen um 90 ° braucht sie nur leicht angehoben zu werden.Another design provides that the screw lever has a hub that contains the cross recesses for the cross pin, and that the hub is connected via a horizontal joint to the screw lever having a fork head, which thus hangs freely when not in use and is actuated of the bolt can turn. The hub then no longer contains a compression spring and is constantly engaged. To move it by 90 ° it only needs to be lifted slightly.

Natürlich gibt es noch weitere Betätigungsarten für die Nabe, z.B. in Form einer Knagge, die mit einem Stellhebel auf Lösen oder Spannen des Schraubbolzens umgestellt werden kann.Of course there are other types of actuation for the hub, e.g. in the form of a lug, which can be adjusted with an adjusting lever to loosen or tighten the screw bolt.

In den Zeichnungen sind die drei Bauformen im vertikalen Längsschnitt detailliert dargestellt. Nach Fig. 1 enthält der Schachthebel 1 in einer Konsole 2 einen geführten Schraubbolzen 3 mit einer zweiseitigen Vorreiberzunge 4, deren rückwartiges Ende sich auf einer einstellbaren Schraube 5 abstützt. Am Rahmen 6 ist ein Vorsprung 7 vorgesehen, der von der Vorreiberzunge 4 untergrif fen wird. Der Vorsprung 7 weist einen Winkelfortsatz 8 auf, gegen den die Vorreiberzunge beim Anziehen des Schraubbolzens anschlägt.In the drawings, the three designs are shown in detail in the vertical longitudinal section. 1, the shaft lever 1 contains, in a bracket 2, a guided screw bolt 3 with a double-sided sash tongue 4, the rear end of which is supported on an adjustable screw 5. On the frame 6, a protrusion 7 is provided, which is gripped by the sash tongue 4. The projection 7 has an angular extension 8, against which the sash tongue strikes when the screw bolt is tightened.

Auf dem verlängertem Ende des Schraubbolzens 3 ist ein Schraubhebel 9 mit Nabe 10 frei drehbar geführt. Das untere Ende der Nabe 10 weist zwei Kreuzschlitze 11 auf, die mit einem Querstift 12 zusammenarbeiten können, wenn der Schraubhebel 9 gegen die Kraft der Druckfeder 13 nach unten gezogen und eingerastet wird. Der Schraubhebel wird nach einer Vierteldrehung angehoben, zurückgedreht und wieder eingerastet. Dies ist sowohl in Öffnungs- als auch in Schließstellung möglich. Die aufzuwendende Kraft zum Öffnen oder Schließen des Vorreibers ist durch die Untersetzung im Gewinde und durch die Hebelübersetzung sehr gering.On the extended end of the bolt 3, a screw lever 9 with hub 10 is freely rotatable. The lower end of the hub 10 has two cross slots 11, which can cooperate with a cross pin 12 when the screw lever 9 is pulled down and locked against the force of the compression spring 13. After a quarter turn, the screw lever is raised, turned back and snapped back into place. This is possible both in the open and in the closed position. The force to open or close the sash is very low due to the reduction in the thread and the lever ratio.

Der Schraubbolzen 3 kann im unteren Abschnitt glatt ohne Gewinde sein. Dadurch ist eine bessere Führung der Nabe möglich, und die Gefahr des Verkantens des Schraubhebels ist verringert.The screw bolt 3 can be smooth without thread in the lower section. This enables better guidance of the hub and reduces the risk of the screw lever tilting.

Fig. 2 zeigt den Schachtdeckel 1 und die Führung des Schraubbolzens 3 unverändert. Die Nabe 10′ des Schraubhebls 9′ ist ständig eingerastet. Statt des horizontalen Hebelarms besitzt die Nabe ein Scharniergelenk 14, in dem der gabelförmige Kopf 15 des Schraubhebels 9′ gelagert ist. Der Schraubhebel hängt demnach bei Nichtgebrauch nach unten und stößt beim Drehen des Schraubbolzen nicht gegen die Schachtwand. Zum Lösen oder Schließen des Vorreibers von unten wird er hochgeschwenkt und dann 90° um gedreht. Er kann dann ausgerastet und um 90° versetzt wieder eingerastet werden. Eine besondere Führung der Nabe am Schraubbolzen ist hier also nicht notwendig.Fig. 2 shows the manhole cover 1 and the guidance of the bolt 3 unchanged. The hub 10 'of the screw lever 9' is constantly engaged. Instead of the horizontal lever arm, the hub has a hinge joint 14 in which the fork-shaped head 15 of the screw lever 9 'is mounted. The screw lever hangs down when not in use and does not hit the shaft wall when the screw bolt is turned. To loosen or close the sash from below, swing it up and then turn it 90 °. It can then be snapped out and snapped in again at a 90 ° offset. A special guidance of the hub on the screw bolt is not necessary here.

Die Ausführungsform nach Fig. 3 enthält am unteren Ende des Schraubbolzens 23 einen mittels Querstift 22 befestigten Sechskant 24, dem ein Innensechskant in der Nabe 25 des Schraubhebels 26 entspricht. In der Ruhestellung liegt der Schraubhebel 26 auf dem überstehenden Querstift 22. Zwischen dem Bund 27 des Sechskants 24 und der Vorreiberzunge 4 ist eine Druckfeder 28 und eine Rohrhülse 29 eingefügt. Die Druckfeder dient dazu, die untere Stellung der Vorreiberzunge zu begrenzen, und die Druckfeder dient dazu, die Drehkräfte von dem Sechskant auf die Vorreiberzunge zu übertragen, damit diese in dem Augenblick, in dem sie von der Rahmenunterseite freikommt, in die Freigabestellung geschwenkt wird.The embodiment according to FIG. 3 contains, at the lower end of the screw bolt 23, a hexagon 24 fastened by means of a transverse pin 22, to which a hexagon socket in the hub 25 of the screw lever 26 corresponds. In the rest position, the screw lever 26 lies on the projecting transverse pin 22. A compression spring 28 and a tubular sleeve 29 are inserted between the collar 27 of the hexagon 24 and the cam tongue 4. The compression spring is used to limit the lower position of the sash tongue, and the compression spring is used to transmit the torque from the hexagon to the sash tongue so that it is pivoted into the release position the moment it is released from the underside of the frame.

Claims (7)

1. Schachtabdeckung mit Scharnier und mechanischer oder hydraulisch/pneumatischer Öffnungshilfe sowie einer Verriegelung, die einen Schraubvorreiber (4) enthält, dadurch gekennzeichnet, daß der über die Vorreiberzunge (4) nach unten verlängerte Schraubbolzen (3) einen in Eingriff bringbaren Schraubhebel (9) aufweist, der an dem Schraubbolzen (3) im uneingerückten Zustand frei drehbar gelagert ist.1. manhole cover with hinge and mechanical or hydraulic / pneumatic opening aid and a lock which contains a screw fastener (4), characterized in that the screw bolt (3) extended downward via the fastener tongue (4) has a screw lever (9) which can be brought into engagement has which is freely rotatably mounted on the screw bolt (3) in the unengaged state. 2. Schachtabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß der Schraubbolzen (3) an der Verlängerung einen Querstift (12) aufweist, der mit entsprechenden Queraussparungen (11) am Schraubhebel (9) zusammenarbeitet.2. Manhole cover according to claim 1, characterized in that the screw bolt (3) on the extension has a cross pin (12) which cooperates with corresponding transverse recesses (11) on the screw lever (9). 3. Schachtabdeckungen nach Anspruch 2, dadurch gekennzeichnet, daß der Schraubhebel (9) durch eine Druckfeder (13) in Freilaufstellung ausgerastet gehalten ist.3. manhole covers according to claim 2, characterized in that the screw lever (9) is held disengaged by a compression spring (13) in the freewheeling position. 4. Schachtabdeckung nach Anspruch 2, dadurch gekennzeichnet, daß zwei im Winkel von 90° zueinander stehende Queraussparungen (11) vorgesehen sind.4. manhole cover according to claim 2, characterized in that two transverse recesses (11) are provided at an angle of 90 ° to each other. 5. Schachtabdeckung nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Schraubhebel (9′) eine Nabe (10′) aufweist, die die Queraussparungen (11′) enthält, und daß die Nabe (10′) über ein horizontales Gelenk (14) mit dem einen Gabelkopf (15) aufweisenden Schraubhebel (9′) verbunden ist, der bei Nichtgebrauch somit frei nach unten hängen kann.5. Manhole cover according to one or more of the preceding claims, characterized in that the screw lever (9 ') has a hub (10') which contains the transverse recesses (11 '), and that the hub (10') via a horizontal joint (14) with a fork head (15) having screw lever (9 ') is connected, which can thus hang freely when not in use. 6. Schachtabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß der Schraubbolzen (23) einen mit der Verlängerung verstifteten Vier- oder Sechskant (24) aufweist, der mit einem entsprechenden Mehrkant des Schraubhebels in Eingriff bringbar ist.6. manhole cover according to claim 1, characterized in that the screw bolt (23) has a pinned to the extension square or hexagon (24) which can be brought into engagement with a corresponding polygon of the screw lever. 7. Schachtabdeckung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß zwischen dem Mehrkant (24) bzw. der Nabe (25) des Schraubhebels und der Vorreiberzunge (4) eine den Schraubbolzen (23) umgebende Druckfeder (28) vorgesehen ist, die die Drehkräfte des Schraubhebels auf die Vorreiberzunge überträgt.7. Manhole cover according to claim 5 or 6, characterized in that between the polygon (24) or the hub (25) of the screw lever and the sash tongue (4) is provided a compression spring (28) surrounding the screw bolt (23), which Transfers torque of the screw lever to the sash tongue.
EP89118535A 1988-10-07 1989-10-06 Manhole cover Expired - Lifetime EP0362862B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89118535T ATE81374T1 (en) 1988-10-07 1989-10-06 MANHOLE COVER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834107A DE3834107A1 (en) 1988-10-07 1988-10-07 SHAFT COVER
DE3834107 1988-10-07

Publications (3)

Publication Number Publication Date
EP0362862A2 true EP0362862A2 (en) 1990-04-11
EP0362862A3 EP0362862A3 (en) 1990-10-31
EP0362862B1 EP0362862B1 (en) 1992-10-07

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ID=6364570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118535A Expired - Lifetime EP0362862B1 (en) 1988-10-07 1989-10-06 Manhole cover

Country Status (3)

Country Link
EP (1) EP0362862B1 (en)
AT (1) ATE81374T1 (en)
DE (2) DE3834107A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695485A (en) * 2015-03-10 2015-06-10 国网上海市电力公司 Antitheft cable manhole cover

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008055283A1 (en) * 2006-11-08 2008-05-15 Pavika Management Pty. Ltd. Manhole cover
CN114517494A (en) * 2021-12-27 2022-05-20 天津泰达园林建设有限公司 Anti-theft inspection well

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE619730C (en) * 1934-06-05 1935-10-09 Beschlagfabrik Benninghoven Crank window lifter in connection with the door lock, especially for doors on motor vehicles o.
US4549716A (en) * 1983-12-15 1985-10-29 Warren Timothy P Control handle arrangement for a fluid control valve
DE8707742U1 (en) * 1987-05-30 1987-08-20 Passavant-Werke AG, 6209 Aarbergen Manhole cover
DE3705672A1 (en) * 1987-02-21 1988-09-01 Kloeckner Humboldt Deutz Ag Turning device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE619730C (en) * 1934-06-05 1935-10-09 Beschlagfabrik Benninghoven Crank window lifter in connection with the door lock, especially for doors on motor vehicles o.
US4549716A (en) * 1983-12-15 1985-10-29 Warren Timothy P Control handle arrangement for a fluid control valve
DE3705672A1 (en) * 1987-02-21 1988-09-01 Kloeckner Humboldt Deutz Ag Turning device
DE8707742U1 (en) * 1987-05-30 1987-08-20 Passavant-Werke AG, 6209 Aarbergen Manhole cover

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695485A (en) * 2015-03-10 2015-06-10 国网上海市电力公司 Antitheft cable manhole cover
CN104695485B (en) * 2015-03-10 2016-02-10 国网上海市电力公司 A kind of anti-theft cable pit cover

Also Published As

Publication number Publication date
ATE81374T1 (en) 1992-10-15
EP0362862A3 (en) 1990-10-31
DE3834107A1 (en) 1990-04-19
DE58902414D1 (en) 1992-11-12
EP0362862B1 (en) 1992-10-07

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