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EP1046754A1 - Manhole cover - Google Patents

Manhole cover Download PDF

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Publication number
EP1046754A1
EP1046754A1 EP00108274A EP00108274A EP1046754A1 EP 1046754 A1 EP1046754 A1 EP 1046754A1 EP 00108274 A EP00108274 A EP 00108274A EP 00108274 A EP00108274 A EP 00108274A EP 1046754 A1 EP1046754 A1 EP 1046754A1
Authority
EP
European Patent Office
Prior art keywords
manhole cover
shaft
spindle
cover according
manhole
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.)
Withdrawn
Application number
EP00108274A
Other languages
German (de)
French (fr)
Inventor
Franz Kölblinger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1046754A1 publication Critical patent/EP1046754A1/en
Withdrawn legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/12Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14Covers for manholes or the like; Frames for covers
    • E02D29/1418Covers for manholes or the like; Frames for covers with implements to assist in lifting, e.g. counterweights, springs

Definitions

  • the invention relates to a manhole cover for building, cable, sewer and other shafts.
  • Manhole covers are used in many areas of buildings, ducts, cable ducts etc. installed. Most of them are rarely opened and are therefore, according to the prior art, due to contamination or difficult to open the often very high dead weight. Corrode screw connections, Closures are no longer feasible. It is therefore for an operator alone mostly impossible to operate these covers.
  • a shaft cover is already known from DE 195 14 636 A1, in which a Drainage shaft is closed by a lid, which is on a frame supports on which it is secured by means of screws.
  • a guide rod is mounted on a U-profile attached to the shaft wall, the upper end of which is attached to the lid.
  • a preloaded spring is between the U-profile and the lid. After loosening the screws lifts the spring biased the cover over the top of the frame. The lid can now be swung out.
  • This previously known manhole cover results the problem that corroded screw connections are often difficult to solve are.
  • there is a fear that the tension for a long time held springs lose tension over time and thus the heavy ones Do not lift the manhole cover sufficiently until the screw connection is open is. To the extent that the spring is too large, it is difficult for an individual to close the manhole cover against the force of the spring.
  • the object of the present invention is to provide a manhole cover for buildings, Provide cable, duct and other manholes by an operator Open and open again without having to loosen the locks and screw connections can be locked.
  • a manhole cover can be created with one Vertical movement regardless of its weight the effortless lifting of the Lid is enabled.
  • the cover of the manhole cover can move into its own axis in a vertical position brought and secured by a lock.
  • Below can the shaft opening completely by swiveling around the spindle axis be uncovered, with the manhole cover in this pivoted-out position can also be secured by another lock.
  • a crash grille can be automatically pulled along the shaft opening, which in the upper edge area of the manhole frame via two holding claws automatically engages.
  • FIG 1 shows a manhole cover 10 for closing a manhole 12.
  • the shaft is closed.
  • FIG Manhole cover 10 lifted vertically from manhole 12.
  • the vertical movement the shaft cover 10 takes place via a spindle drive 14 which anchored to a side wall of the shaft 12 via any holder 16 is.
  • the spindle drive 14 consists of an outer sleeve 1 with a square cross section, in which a 3-point mounted carriage 2 by pressing one in the Outer sleeve 3 mounted spindle 18 ( Figures 3 to 5) in the vertical direction (direction of movement I) is movable. This will cover the one shown in Fig. 1 closed position in the open position shown in Fig. 2 transferred.
  • the threaded spindle 18 which is designed, for example, as a trapezoidal threaded spindle can be through a hole not shown here through the manhole cover can be reached and manually with a cordless drill or mounted electric gear motor not shown here are operated.
  • a cordless drill or mounted electric gear motor not shown here are operated.
  • Fig. 6 sets at the upper free end of the carriage 2 at right angles to a round shaft 3 around which the manhole cover 10 is pivotally mounted.
  • the shaft cover 10 can be pivoted about the round shaft 3 become. It is pivoted from one to the level of Shaft opening in a plane parallel to a plane perpendicular to the shaft opening (Direction of movement II).
  • the patch can serving as a manhole cover fixed by a lock 4 become.
  • a further pivoting movement takes place in that the manhole cover 10 is pivotally mounted together with the round shaft 3 about the spindle axis (Direction of movement III). This makes the manhole cover complete Pivotal opening of the shaft opening.
  • FIGS. 7 shows the vertical direction of movement I in the direction of the arrow.
  • FIG. 8 illustrates the pivoting movement III about the spindle axis and the figure 9 clarified the tilting movement of the manhole cover around the round shaft 3, i.e. the rotary motion II.
  • a grating 22 is additionally arranged pivotably on the spindle drive 14. This can be used to secure the otherwise open shaft opening during the vertical upward movement of the manhole cover using a suitable traction mechanism 24 are pulled up so that it is in the end position of the manhole cover 10 (as shown in Fig. 2) closes the cross section of the shaft opening. In this position it is by spring-loaded holding claws, which in a corresponding Grip heel of the outer duct frame, can be secured. When closing the Manhole cover automatically becomes the holding claws against the spring force solved so that the grating over the traction means 24 again in that shown in Fig. 1 Position is pivoted.

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  • Engineering & Computer Science (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)

Abstract

The shaft cover (10) is fitted to the shaft (12) with a spindle drive (14) which raises and lowers it at the shaft opening. spindle drive (14), anchored at the shaft (12), has an outer sleeve with a rotating spindle within it and a slide moved up and d by the rotating spindle.

Description

Die Erfindung betrifft eine Schachtabdeckung für Gebäude-, Kabel-, Kanal- und sonstige Schächte.The invention relates to a manhole cover for building, cable, sewer and other shafts.

Schachtabdeckungen werden in vielen Bereichen von Gebäuden, Kanälen, Kabelschächten etc. eingebaut. Viele von ihnen werden meist nur selten geöffnet und sind daher, entsprechend dem bisherigen Stand der Technik, durch Verschmutzung oder das oft sehr hohe Eigengewicht schwierig zu öffnen. Verschraubungen korrodieren, Verschlüsse sind nicht mehr gangbar. Es ist daher für eine Bedienungspersan alleine meistens unmöglich, diese Abdeckungen zu betätigen.Manhole covers are used in many areas of buildings, ducts, cable ducts etc. installed. Most of them are rarely opened and are therefore, according to the prior art, due to contamination or difficult to open the often very high dead weight. Corrode screw connections, Closures are no longer feasible. It is therefore for an operator alone mostly impossible to operate these covers.

Aus der DE 195 14 636 A1 ist bereits eine Schachtabdeckung bekannt, bei der ein Ablaufschacht mittels eines Deckels verschlossen ist, der sich auf einem Rahmen abstützt, an welchem er mittels Schrauben gesichert ist. In den beiden Bohrungen eines an der Schachtwand befestigten U-Profils ist eine Führungsstange gelagert, deren oberes Ende am Deckel befestigt ist. Eine vorgespannte Feder ist zwischen dem U-Profil und dem Deckel angeordnet. Nach dem Lösen der Schrauben hebt die vorgespannte Feder den Deckel über die Oberkante des Rahmens. Der Deckel kann nun ausgeschwenkt werden. Bei dieser vorbekannten Schachtabdeckung ergibt sich das Problem, daß korrodierte Verschraubungen häufig schwer zu lösen sind. Darüber hinaus ist zu befürchten, daß die über lange Zeit unter Spannung gehaltenen Federn mit der Zeit an Spannung verlieren und somit den schweren Schachtdeckel nicht mehr hinreichend anheben, soweit die Verschraubung geöffnet ist. Soweit die Feder zu stark dimensioniert ist, ist es für eine Einzelperson schwierig, die Schachtabdeckung gegen die Kraft der Feder wieder zu schließen.A shaft cover is already known from DE 195 14 636 A1, in which a Drainage shaft is closed by a lid, which is on a frame supports on which it is secured by means of screws. In the two holes a guide rod is mounted on a U-profile attached to the shaft wall, the upper end of which is attached to the lid. A preloaded spring is between the U-profile and the lid. After loosening the screws lifts the spring biased the cover over the top of the frame. The lid can now be swung out. With this previously known manhole cover results the problem that corroded screw connections are often difficult to solve are. In addition, there is a fear that the tension for a long time held springs lose tension over time and thus the heavy ones Do not lift the manhole cover sufficiently until the screw connection is open is. To the extent that the spring is too large, it is difficult for an individual to close the manhole cover against the force of the spring.

Aufgabe der vorliegenden Erfindung ist es, eine Schachtabdeckung für Gebäude-, Kabel-, Kanal- und sonstige Schächte bereitzustellen, die von einer Bedienperson ohne mühevolles Lösen von Verschlüssen und Verschraubungen geöffnet und wieder verschlossen werden kann.The object of the present invention is to provide a manhole cover for buildings, Provide cable, duct and other manholes by an operator Open and open again without having to loosen the locks and screw connections can be locked.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst. Die Grundidee der Erfindung besteht darin, daß die Schachtabdeckung über einen im Schacht verankerbaren Spindelantrieb heb- und senkbar ist.According to the invention, this object is achieved by the features of claim 1. The basic idea of the invention is that the shaft cover over a spindle drive that can be anchored in the shaft can be raised and lowered.

Bevorzugte Ausführungsformen der Erfindung ergeben sich aus den sich an den Hauptanspruch anschließenden Unteransprüchen.Preferred embodiments of the invention result from the Main claim subsequent subclaims.

Insgesamt kann eine Schachtabdeckung geschaffen werden, bei der über eine Vertikalbewegung unabhängig von seinem Gewicht das mühelose Ausheben des Deckels ermöglicht wird. Durch eine Drehbewegung auf einer Rundwelle um die eigene Achse kann der Deckel der Schachtabdeckung in eine senkrechte Stellung gebracht werden und durch eine Arretierung gesichert werden. Nachfolgend kann über eine Schwenkbewegung um die Spindelachse die Schachtöffnung vollständig freigelegt werden, wobei in dieser ausgeschwenkten Stellung die Schachtabdeckung ebenfalls durch eine weitere Arretierung gesichert werden kann. Zur Absicherung der Schachtöffnung kann ein Absturzgitter automatisch mitgezogen werden, welches im oberen Randbereich des Schachtrahmens über zwei Halteklauen selbsttätig einrastet. Overall, a manhole cover can be created with one Vertical movement regardless of its weight the effortless lifting of the Lid is enabled. By rotating on a round shaft around the The cover of the manhole cover can move into its own axis in a vertical position brought and secured by a lock. Below can the shaft opening completely by swiveling around the spindle axis be uncovered, with the manhole cover in this pivoted-out position can also be secured by another lock. For protection a crash grille can be automatically pulled along the shaft opening, which in the upper edge area of the manhole frame via two holding claws automatically engages.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

Fig. 1:
eine teilweise geschnittene Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Schachtabdeckung in geschlossener Stellung,
Fig. 2:
die Schachtabdeckung gemäß Fig. 1 in vertikal abgehobenener Stellung,
Fig. 3 bis Fig. 5:
verschiedene Schnittdarstellungen von Teilen des Spindelantriebs der Schachtabdeckung gemäß dem Ausführungsbeispiel nach Fig. 1,
Fig. 6:
ein weiteres Detail des Spindelantriebs des Ausführungsbeispiels der Schachtabdeckung nach Fig. 1 und
Fig. 7 bis Fig. 9:
teilweise schematische Schnittdarstellungen von Teilen der Schachtabdeckung gemäß Fig. 1, anhand derer die Schwenkrichtungen der Schachtabdeckung erläutert sind.
Further details and advantages of the invention will be explained in more detail with reference to an embodiment shown in the drawing. Show it:
Fig. 1:
2 shows a partially sectioned illustration of an exemplary embodiment of a manhole cover according to the invention in the closed position,
Fig. 2:
1 in the vertically raised position,
3 to 5:
different sectional views of parts of the spindle drive of the shaft cover according to the embodiment of FIG. 1,
Fig. 6:
a further detail of the spindle drive of the embodiment of the manhole cover according to FIGS. 1 and
7 to 9:
partially schematic sectional views of parts of the manhole cover according to FIG. 1, on the basis of which the pivoting directions of the manhole cover are explained.

In Fig. 1 ist eine Schachtabdeckung 10 zum Verschluß eines Schachts 12 dargestellt. In dieser Figur ist der Schacht geschlossen. Dagegen ist in Fig. 2 die Schachtabdeckung 10 in vertikaler Richtung vom Schacht 12 abgehoben. Die Vertikalbewegung der Schachtabdeckung 10 erfolgt über einen Spindelantrieb 14, der an einer Seitenwand des Schachtes 12 über eine beliebige Halterung 16 verankert ist. Der Spindelantrieb 14 besteht aus einer Außenhülse 1 mit quadratischem Querschnitt, in dem ein 3-Punkt-gelagerter Schlitten 2 durch das Betätigen einer in der Außenhülse 3 gelagerten Spindel 18 (Figuren 3 bis 5) in vertikaler Richtung (Bewegungsrichtung I) verfahrbar ist. Dadurch wird die Abdeckung von der in Fig. 1 dargestellten geschlossenen Stellung in die in Fig. 2 dargestellte offene Stellung überführt. Wesentlich hierbei ist es, daß die Schachtabdeckung aufgrund des Spindelantriebs zusätzlich keiner weiteren Verschraubungen oder Verschlüsse bedarf. Die Gewindespindel 18, die beispielsweise als Trapezgewindespindel ausgeführt sein kann, kann über eine hier nicht näher dargestellte Bohrung durch die Schachtabdeckung erreicht werden und manuell mit einer Akku-Bohrmaschine oder einem hier nicht näher dargestellten angebauten Elektrogetriebemotor betätigt werden. Zur Ankopplung des oberen Endes der Gewindespindel mit der Antriebswelle der Akku-Bohrmaschine dienen die beispielsweise in Fig. 8 dargestellten seitlich herausgeführten Achszapfen 20.1 shows a manhole cover 10 for closing a manhole 12. In this figure the shaft is closed. In contrast, in FIG Manhole cover 10 lifted vertically from manhole 12. The vertical movement the shaft cover 10 takes place via a spindle drive 14 which anchored to a side wall of the shaft 12 via any holder 16 is. The spindle drive 14 consists of an outer sleeve 1 with a square cross section, in which a 3-point mounted carriage 2 by pressing one in the Outer sleeve 3 mounted spindle 18 (Figures 3 to 5) in the vertical direction (direction of movement I) is movable. This will cover the one shown in Fig. 1 closed position in the open position shown in Fig. 2 transferred. It is essential here that the shaft cover due to the spindle drive additionally no further screw connections or closures are required. The threaded spindle 18, which is designed, for example, as a trapezoidal threaded spindle can be through a hole not shown here through the manhole cover can be reached and manually with a cordless drill or mounted electric gear motor not shown here are operated. For coupling the upper end of the threaded spindle to the drive shaft of the Cordless drills are used, for example, shown laterally in Fig. 8 Axle journal 20.

Wie insbesondere in Fig. 6 dargestellt, setzt am oberen freien Ende des Schlittens 2 im rechten Winkel eine Rundwelle 3 an, um die die Schachtabdeckung 10 schwenkbar gelagert ist. Die Schachtabdeckung 10 kann um die Rundwelle 3 verschwenkt werden. Dabei erfolgt eine Verschwenkung von einer zur Ebene der Schachtöffnung parallelen Ebene in eine zur Schachtöffnung senkrechte Ebene (Bewegungsrichtung II). In den jeweiligen Endstellungen kann dabei der aufgesetzte als Schachtabdeckung dienende Deckel durch eine Arretierung 4 festgelegt werden.As shown in particular in Fig. 6, sets at the upper free end of the carriage 2 at right angles to a round shaft 3 around which the manhole cover 10 is pivotally mounted. The shaft cover 10 can be pivoted about the round shaft 3 become. It is pivoted from one to the level of Shaft opening in a plane parallel to a plane perpendicular to the shaft opening (Direction of movement II). In the respective end positions, the patch can serving as a manhole cover fixed by a lock 4 become.

Eine weitere Schwenkbewegung erfolgt dadurch, daß die Schachtabdeckung 10 zusammen mit der Rundwelle 3 um die Spindelachse verschwenkbar gelagert ist (Bewegungsrichtung III). Hierdurch ist die Schachtabdeckung zur vollständigen Freigabe der Schachtöffnung verschwenkbar.A further pivoting movement takes place in that the manhole cover 10 is pivotally mounted together with the round shaft 3 about the spindle axis (Direction of movement III). This makes the manhole cover complete Pivotal opening of the shaft opening.

In den Figuren 7 bis 9 sind die unterschiedlichen Bewegungsrichtungen dargestellt. Die Figur 7 zeigt in Pfeilrichtung die vertikale Bewegungsrichtung I. Die Figur 8 verdeutlicht die Schwenkbewegung III um die Spindelachse und die Figur 9 verdeutlichet die Kippbewegung des Schachtdeckels um die Rundwelle 3, d.h. die Drehbewegung II. The different directions of movement are shown in FIGS. FIG. 7 shows the vertical direction of movement I in the direction of the arrow. FIG. 8 illustrates the pivoting movement III about the spindle axis and the figure 9 clarified the tilting movement of the manhole cover around the round shaft 3, i.e. the rotary motion II.

An dem Spindelantrieb 14 ist zusätzlich ein Gitterrost 22 schwenkbar angeordnet. Dieser kann zur Absicherung der ansonsten offenen Schachtöffnung während der vertikalen Aufwärtsbewegung der Schachtabdeckung über ein geeignetes Zugmittel 24 hochgezogen werden, so daß dieser in der Endstellung der Schachtabdeckung 10 (wie sie in Fig. 2 dargestellt ist) den Querschnitt der Schachtöffnung verschließt. In dieser Stellung ist er durch federbelastete Halteklauen, die in einen entsprechenden Absatz des Kanalaußenrahmens greifen, sicherbar. Beim Schließen der Schachtabdeckung werden die Halteklauen entgegen der Federkraft automatisch gelöst, so daß der Gitterrost über das Zugmittel 24 wieder in die in Fig. 1 dargestellte Position verschwenkt wird.A grating 22 is additionally arranged pivotably on the spindle drive 14. This can be used to secure the otherwise open shaft opening during the vertical upward movement of the manhole cover using a suitable traction mechanism 24 are pulled up so that it is in the end position of the manhole cover 10 (as shown in Fig. 2) closes the cross section of the shaft opening. In this position it is by spring-loaded holding claws, which in a corresponding Grip heel of the outer duct frame, can be secured. When closing the Manhole cover automatically becomes the holding claws against the spring force solved so that the grating over the traction means 24 again in that shown in Fig. 1 Position is pivoted.

Claims (8)

Schachtabdeckung für Gebäude-, Kabel-, Kanal- und sonstige Schächte,
dadurch gekennzeichnet,
daß sie über einen im Schacht verankerbaren Spindelantrieb heb- und senkbar ist.
Manhole cover for building, cable, sewer and other manholes,
characterized,
that it can be raised and lowered via a spindle drive that can be anchored in the shaft.
Schachtabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß der Spindelantrieb aus einer Außenhülse, einer drehbar in der Außenhülse gelagerten Spindel und einem im Inneren der Außenhülse gelagerten Schlitten, der über die Spindel verfahrbar ist, besteht. Manhole cover according to claim 1, characterized in that the spindle drive from an outer sleeve, one rotatably mounted in the outer sleeve Spindle and a slide mounted inside the outer sleeve, which over the spindle can be moved. Schachtabdeckung nach Anspruch 2, dadurch gekennzeichnet, daß am auf- und abbewegbaren Ende des Schlittens im rechten Winkel eine Rundwelle angeordnet ist, auf der die Schachtabdeckung schwenkbar gelagert ist.Manhole cover according to claim 2, characterized in that on and movable end of the slide at right angles a round shaft is arranged on which the manhole cover is pivotally mounted. Schachtabdeckung nach Anspruch 3, dadurch gekennzeichnet, daß mindestens eine Arretierung angeordnet ist, über die die Schachtabdeckung nach Verschwenken um die Rundwelle festlegbar ist.Manhole cover according to claim 3, characterized in that at least a lock is arranged over which the manhole cover after Swiveling around the round shaft can be fixed. Schachtabdeckung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Schachtabdeckung um die Spindelachse schwenkbar ist.Manhole cover according to one of claims 1 to 4, characterized in that that the shaft cover is pivotable about the spindle axis. Schachtabdeckung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß innerhalb des Schachtes ein über die Vertikalbewegung der Schachtabdeckung verschwenkbarer Gitterrost derart angeordnet ist, daß dieser bei auf dem Schacht aufgesetzter Schachtabdeckung den Schachtquerscnitt freigibt und bei in vertikaler Richtung ausgefahrener Schachtabdeckung den Schachtquerschnitt verschließt.Manhole cover according to one of claims 1 to 5, characterized in that that within the shaft one on the vertical movement of the Manhole cover pivotable grating is arranged such that this the shaft cross-section when the shaft cover is placed on the shaft releases and with the shaft cover extended in the vertical direction closes the shaft cross section. Schachtabdeckung nach Anspruch 6, dadurch gekennzeichnet, daß am Gitterrost Haltehaken zum Halten des Gitterrostes angeordnet sind.Manhole cover according to claim 6, characterized in that on the grating Holding hooks for holding the grating are arranged. Schachtabdeckung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß an der Unterseite der Schachtabdeckung Elektro-Stromverteiler angeordnet sind.Manhole cover according to one of claims 1 to 7, characterized in that arranged on the underside of the manhole cover electrical power distributor are.
EP00108274A 1999-04-19 2000-04-14 Manhole cover Withdrawn EP1046754A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT68999 1999-04-19
AT68999 1999-04-19

Publications (1)

Publication Number Publication Date
EP1046754A1 true EP1046754A1 (en) 2000-10-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1626130A1 (en) * 2004-08-10 2006-02-15 Howe Green Limited Hinged access cover
EP2924173A1 (en) * 2013-05-10 2015-09-30 Norbert Schütz GmbH & Co. KG Shaft cover
US20160258127A1 (en) * 2013-10-11 2016-09-08 Apulia Innovative Technologies, S.R.L. Cover of traps or manholes equipped with a mechanism for lifting and horizontally translating the cover
ITUA20164763A1 (en) * 2016-06-29 2017-12-29 Andrea Montanari EQUIPMENT FOR LIFTING EASY WEIGHTS, IN PARTICULAR OF CHIUSINI DI POZZETTI
CN108193715A (en) * 2017-12-27 2018-06-22 长沙金龙铸造实业有限公司 Hydraulic pressure well lid
CN108532638A (en) * 2018-05-17 2018-09-14 湖南天联城市数控有限公司 A kind of borehole wall installing type well lid intelligent monitoring locking device
CN116497878A (en) * 2023-06-28 2023-07-28 安邦电力科技(山东)有限公司 Intelligent well lid is used in shaft construction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3530629A1 (en) * 1985-08-28 1987-03-05 Buderus Ag Device for lowering and raising a manhole cover
CH661465A5 (en) * 1983-12-07 1987-07-31 Rutschmann Ag Tool for inserting and lifting out a manhole cover
DE19514636A1 (en) 1994-04-20 1995-10-26 Von Roll Ag Manhole cover for inspection shafts, sewer manholes, access shafts for tank pits etc.
US5531541A (en) * 1995-03-22 1996-07-02 Fairfield Industries Manhole cover lifting apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH661465A5 (en) * 1983-12-07 1987-07-31 Rutschmann Ag Tool for inserting and lifting out a manhole cover
DE3530629A1 (en) * 1985-08-28 1987-03-05 Buderus Ag Device for lowering and raising a manhole cover
DE19514636A1 (en) 1994-04-20 1995-10-26 Von Roll Ag Manhole cover for inspection shafts, sewer manholes, access shafts for tank pits etc.
US5531541A (en) * 1995-03-22 1996-07-02 Fairfield Industries Manhole cover lifting apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1626130A1 (en) * 2004-08-10 2006-02-15 Howe Green Limited Hinged access cover
EP2924173A1 (en) * 2013-05-10 2015-09-30 Norbert Schütz GmbH & Co. KG Shaft cover
US20160258127A1 (en) * 2013-10-11 2016-09-08 Apulia Innovative Technologies, S.R.L. Cover of traps or manholes equipped with a mechanism for lifting and horizontally translating the cover
US10030353B2 (en) * 2013-10-11 2018-07-24 Apulia Innovative Technologies, S.R.L. Cover of traps or manholes equipped with a mechanism for lifting and horizontally translating the cover
ITUA20164763A1 (en) * 2016-06-29 2017-12-29 Andrea Montanari EQUIPMENT FOR LIFTING EASY WEIGHTS, IN PARTICULAR OF CHIUSINI DI POZZETTI
EP3263774A1 (en) * 2016-06-29 2018-01-03 Andrea Montanari Apparatus for facilitated lifting of weights, in particular of pit covers
CN108193715A (en) * 2017-12-27 2018-06-22 长沙金龙铸造实业有限公司 Hydraulic pressure well lid
CN108532638A (en) * 2018-05-17 2018-09-14 湖南天联城市数控有限公司 A kind of borehole wall installing type well lid intelligent monitoring locking device
CN116497878A (en) * 2023-06-28 2023-07-28 安邦电力科技(山东)有限公司 Intelligent well lid is used in shaft construction
CN116497878B (en) * 2023-06-28 2023-09-05 安邦电力科技(山东)有限公司 Intelligent well lid is used in shaft construction

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