EP0200008B1 - Verriegelte und dichte Schachtabdeckung - Google Patents

Verriegelte und dichte Schachtabdeckung Download PDF

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Publication number
EP0200008B1
EP0200008B1 EP86104384A EP86104384A EP0200008B1 EP 0200008 B1 EP0200008 B1 EP 0200008B1 EP 86104384 A EP86104384 A EP 86104384A EP 86104384 A EP86104384 A EP 86104384A EP 0200008 B1 EP0200008 B1 EP 0200008B1
Authority
EP
European Patent Office
Prior art keywords
frame
cover
flange
pad
interposed
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.)
Expired
Application number
EP86104384A
Other languages
English (en)
French (fr)
Other versions
EP0200008A1 (de
Inventor
Pierre Vigneron
Jean-Claude Hauer
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.)
Pont a Mousson SA
Original Assignee
Pont a Mousson SA
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 Pont a Mousson SA filed Critical Pont a Mousson SA
Priority to AT86104384T priority Critical patent/ATE41186T1/de
Publication of EP0200008A1 publication Critical patent/EP0200008A1/de
Application granted granted Critical
Publication of EP0200008B1 publication Critical patent/EP0200008B1/de
Expired 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
    • E02D29/149—Annular gaskets
    • 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
    • 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 a manhole cover with corrugated and watertight buffer allowing access to the various underground networks, in particular to the underground urban sanitation networks.
  • a manhole cover of generally circular shape, sealed sealed comprising a cover, or buffer, held in a frame by a latch bearing on the underside of the frame and connected to a threaded rod passing right through the pad, a seal being interposed between the frame and the pad; in this device, the threaded rod ensuring the application of the latch on the underside of the frame is located at a distance from the center of the pad less than the radius of the seal interposed between the frame and the pad.
  • the pad is locked on its frame by direct metal-to-metal contact between the frame and the pad.
  • perfect contact over the entire periphery of the pad, between the frame and the pad, is very difficult to achieve.
  • movements of the buffer with respect to the frame which, on the one hand, are such as to create unacceptable noises during the passage of a vehicle over the gaze and, on the other hand, cause shearing. of the packing.
  • a manhole cover with a sealed and sealed buffer comprising a buffer and a frame suitable for receiving a buffer and having a support sole, a seal interposed between the frame and the pad, and means for locking the pad on the frame comprising a flange secured to the frame by means of removable fixing means.
  • a closure device comprising a pad held in a frame by a locking ring applied to the upper face of the pad and which has bearing surfaces facing corresponding surfaces of the frame, able to cooperate with said surfaces of the frame to apply the pad to the frame when said locking ring is rotated, a seal being interposed between the frame and the pad.
  • the locking of the pad being simply obtained by a rotation of the locking ring and maintained by friction of the metal parts between them, the repeated passage of vehicles can cause, by the vibrations generated, a reverse rotation of the locking ring , which causes the buffer to be unlocked.
  • the coefficient of friction between two metal parts is such that the forces generated by this friction, and opposing the rotation of the locking ring, are negligible compared to the forces generated by the passage of a rolling load on the look.
  • the invention aims to remedy these drawbacks by proposing a sealed locking device for a buffer on its frame, at the same time ensuring the watertightness of the manhole, and absolutely prohibiting any vertical upward or downward movement of the stamp in its frame following the passage of vehicles.
  • the manhole cover with a sealed and sealed buffer comprising a buffer, a frame suitable for receiving this buffer and having a support sole, a sealing gasket interposed between the frame and the buffer, and locking means of the pad on this frame is characterized in that the means for locking the pad on this frame comprise a plurality of flanges regularly distributed around the periphery of the frame, integral with the latter by means of removable fixing means, each flange comprising an external part oriented towards the outside of the frame, and bearing on an upper surface of the frame, and an internal part, oriented towards the inside of the frame, cooperating with an upper surface of the pad, in that the removable fixing means are located at a distance from the center of the pad greater than the radius of the seal and in that the seal is interposed between a lower bearing surface of the buffer and an upper support surface of the frame.
  • a compressible sealing gasket and an incompressible soundproofing gasket are interposed between the frame and the pad.
  • the manhole cover comprises a pad 2, a frame 1 suitable for receiving this pad 2, a gasket G1, an elastomer toroid having a hardness of between 45 ° and 60 ° SHORE A interposed between the frame 1 and the pad 2, a sound-absorbing lining G2, of hardness between 41 ° and 46 G SHORE D
  • this lining G2 can be of a known type as described in patent FR-2 153 823, and a plurality of flanges 4 integral with the frame 1 by means of removable fixing means, generally designated by the reference F.
  • the manhole is of circular shape, but it could be, for example, triangular or rectangular.
  • the frame 1 comprises a skirt 9, continuous, extending vertically from a horizontal support flange 8 by which the frame 1 is supported on the top of the chimney, not shown, constituting the look of visit.
  • the latter is provided with an internal radial flange 11, having an upper part 17 slightly inclined relative to the horizontal, extended externally by a peripheral groove 18.
  • This radial flange internal 11 has internally a frustoconical surface 19 of vertical axis.
  • the internal radial flange 11 is connected, by a leave 14, in an external radial extension of the peripheral groove 18 of the upper face of the flange 11, to the skirt 9.
  • This leave 14 serves as a seat for the O-ring seal G1 .
  • the support sole 8 of the frame 1 has, regularly distributed around its periphery, support reliefs 81, made integrally with the sole 8, raised relative to this support sole 8.
  • These reliefs 81 have a upper support surface 82, which can be slightly inclined relative to the frustoconical horizontal with a vertical axis, the internal limit of this support surface 82 being at a lower height than the external limit of this said face.
  • these reliefs 81 are six in number.
  • These reliefs 81 are at a height, relative to the support sole 8, greater than the height of the face 17 of the flange 11, but less than the height of the skirt 9.
  • the skirt 9, at the reliefs 81 defines, with the bearing surfaces 82, housings 6.
  • Each flange 4 consists of an internal part 10 directed towards the inside of the frame 1, and of an external part 15 directed towards the outside of the frame 1.
  • each flange 4 is pierced with a hole for the passage of a bolt 3 ensuring the fixing of the flange 4 on the frame 1.
  • the bolt 3 is screwed into the thread 16.
  • a locking washer 5 is interposed between the head of the bolt 3 and the upper surface of the flange 4.
  • the bolts 3 and the locking washers 5 then constitute the fixing means designated by the reference F.
  • Each external part 15 of a flange 4 is intended to bear on the bearing surface 82 of a relief 81, inside the housing 6, the flanges 4 being the same number as the housing 6.
  • the pad 2 has, on its periphery, on its upper face, a bearing surface 7 (or shoulder 7) of the internal part 10 of the flange 14, which can be slightly inclined relative to the horizontal, frustoconical, vertical axis, the external limit of this shoulder 7 being at a lower height than the internal limit of this shoulder 7.
  • This shoulder 7 (or support surface 7) is connected to another support surface 12, of the pad 2, below the shoulder 7, by a frustoconical surface 13, of vertical axis, the internal limit of this surface 13 being less high than the external limit of this said surface.
  • the packing, G1 can be, as shown in Figs. 1 and 2, an O-ring seal made of elastomer with a hardness of between 45 ° and 60 ° SHORE A. It rests on the fillet 14 of the flange 11 of the frame 1.
  • the G2 sound-absorbing lining interposed between the frame and the pad, is made of a compression-resistant material that can result from the passage of a vehicle over the manhole. It can, for example, be made of polyethylene, with a hardness between 41 ° and 46 ° SHORE D.
  • This packing G2 a as illustrated in FIGS. 1 and 2, an inverted G-shaped profile.
  • This sound-absorbing lining G2 envelops the internal radial flange 11. It consists of a body 20 of external profile corresponding to the profile of the frustoconical face 19 of the frame 1, connected to two horizontal lips whose upper lip 21 has an internal profile corresponding to the profile of the face 17 of the collar 11. This upper lip 21 is terminated by a bead for attaching a profile conjugate with that of the groove 18 of the collar 11.
  • Buffer 2 rests on this lining soundproofing G2 by the annular bearing surface 12, disposed below the bearing surface 7 or shoulder, in contact with the upper face of the lip 21 of the gasket G2.
  • the diameter of the bolt 3 through hole in the flange 4 is greater than the diameter of the bolt 3, and in proportions allowing the tolerances due to the manufacturing by molding of the parts, such as the pad, to be made up 2, the frame 1 and the flanges 4, which allows the flange 4 to have a slight angular deviation relative to the perpendicular axis of the bolt 3.
  • the O-ring seal G1 is only subjected to compression, between the face 13 of the pad and the fillet 14 of the frame, resulting from the contacting of the face 12 of the pad with the lip 21 of the incompressible soundproofing lining G2 by means of the clamping of the flanges 4.
  • the compression ratio of the G1 lining is therefore a function of the molding tolerances of the castings, and this is why the G1 lining is made of an elastomer with a hardness between 45 ° and 60 ° SHORE A to allow easy compression. of this lining G1 even in the case of extreme dimensional gaps which would reduce the volume located between the fillet 14 and the surface 13 once the surface 12 of the pad 2 is in contact with the lip 21 of the incompressible lining G2.
  • the lining G1 is not subjected to any increase in its compression, so it does not risk deteriorating prematurely.
  • a watertight locked manhole has been produced according to the model of the invention in which the gasket G1 has been removed and the soundproofing G2 has been replaced by a seal G3 which can be, as illustrated in Fig. 3 with the same profile as the sound absorbing lining G2 but made of a compressible material of medium hardness, for example an elastomer of hardness 60 ° SHORE A.
  • each flange 4 once the fastening means F in place, is supported on, the bearing surface 82 of the frame 1 by its external part 15, and the bearing surface 7 of the pad by its internal part 10 Thanks to this double support, on either side of the axis along which the fixing means F act, it is possible to act on the fixing means F with dynamometric control means, such as a wrench. tightening of the bolts 3 with dynamometric tightening control, and thus obtaining a determined preload of the seal G3.
  • dynamometric control means such as a wrench.
  • the gasket G3 therefore serves both to ensure the watertightness of the manhole with runoff water and the locking of the buffer, since the gasket being prestressed during assembly of the manhole, any subsequent movement of the buffer is made impossible.
  • the packing G3 of elastomer could be of another profile such as for example that described in patent FR-2 508 953, or of another profile, provided that this packing is compressible and interposed between a surface d 'lower support pad 2 and an upper support surface of the frame 1, the frame 1 and the pad 2 never being in direct metal-metal contact.
  • the manhole locking device therefore makes it possible to ensure effective locking of the buffer and to ensure good sealing against runoff between the frame 1 and the buffer 2 by using parts (frame 1 buffer 2 and flanges 4) rough casting, not requiring subsequent machining.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Peptides Or Proteins (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (8)

1. Verriegelte und dichte Schachtabdeckung, mit einem Stopfen (2) und einem Rahmen (1), der geeignet ist den Stopfen (2) aufzunehmen und eine Stützplatte (8), eine Abdichtung (G1, G3), die zwischen dem Rahmen (1) und dem Stopfen (2) angeordnet ist, und Mittel zur Verriegelung des Stopfens auf dem Rahmen aufweist, dadurch gekennzeichnet, daß die Mittel zur Verriegelung des Stopfens auf dem Rahmen eine Mehrzahl von Flanschen (4) aufweist, die regelmäßig am Umfang des Rahmens (1) verteilt fest mit diesem mittels entfernbaren Befestigungsmitteln (F) verbunden sind, wobei jeder Flansch (4) einen äußeren Bereich (15) aufweist, der auf das Äußere des Rahmens (1) gerichtet ist und sich auf einer oberen Fläche (82) des Rahmens (1) abstützt, und einen inneren Bereich (10) aufweist, der zum Inneren des Rahmens (1) ausgerichtet ist, wobei er mit einer oberen Oberfläche (7) des Stopfens (2) zusammenwirkt, daß die entfernbaren Befestigungsmittel (F) mit einem Abstand vom Zentrum des Stopfens angeordnet sind, der größer ist als der Radius der Abdichtung (G1, G3), und daß die Abdichtung (G1, G3) zwischen einer unteren Stützfläche des Stopfens und einer oberen Stützfläche des Rahmens angeordnet ist.
2. Schachtabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß der Rahmen (1) eine fortlaufende Schürze (9), die den Stopfen (2) umläuft und aus dem Material mit der Stützplatte (8) gebildete Erhöhungen (81) aufweist, die eine obere Stützfläche (82) aufweisen, die von außen durch die Schürze (9) begrenzt sind, wobei sie so Lagerungen (6) begrenzen, die regelmäßig verteilt auf dem Umfang des Rahmens (1) angeordnet sind.
3. Schachtabdeckung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der innere Bereich (10) eines jeden Flansches (4) mit einer Umfangsschulter (7) zusammenwirkt, die in der oberen Fläche des Stopfens (2) angeordnet ist.
4. Schachtabdeckung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die entfernbaren Befestigungsmittel (F) eines Flansches (4) auf dem Rahmen (1) von einer Durchsteckschraube (3) gebildet sind, die ein in jedem Flansch (4) ausgebildetes Loch durchdringt, wobei die Durchsteckschraube (3) in ein Innengewinde (16) eingeschraubt ist, das ausgehend von der Stützoberfläche (82) in den Erhöhungen (81) ausgebildet ist.
5. Schachtabdeckung nach Anspruch 4, dadurch gekennzeichnet, daß das Durchgangsloch der Durchsteckschraube (3) durch einen Flansch (4) hindurch einen Durchmesser aufweist, der größer ist als der Durchmesser der Durchsteckschraube (3).
6. Schachtabdeckung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Oberfläche (82) einer Erhöhung (81), auf der sich der äußere Bereich (15) eines Flansches (4) abstützt, und die Schulter (7) des Stopfens (2), auf dem sich die innere Oberfläche (10) eines Flansches (4) abstützt bezüglich der Horizontalen geneigt sind.
7. Schachtabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß eine Abdichtung von der Härte zwischen 41° und 46° SHORE D zwischen dem Rahmen (1) und dem Stopfen (2) angeordnet ist.
8. Schachtabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß die Abdichtung, die zwischen dem Rahmen (1) und dem Stopfen (3) angeordnet ist, eine Vorspannung bestimmten Wertes aufweist, die durch Festspannen der Flansche (4) mittels der entfernbaren Befestigungsmittel (F) sichergestellt ist.
EP86104384A 1985-04-29 1986-04-01 Verriegelte und dichte Schachtabdeckung Expired EP0200008B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86104384T ATE41186T1 (de) 1985-04-29 1986-04-01 Verriegelte und dichte schachtabdeckung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8507052A FR2581103B1 (fr) 1985-04-29 1985-04-29 Regard de chaussee a tampon verrouille et etanche
FR8507052 1985-04-29

Publications (2)

Publication Number Publication Date
EP0200008A1 EP0200008A1 (de) 1986-11-05
EP0200008B1 true EP0200008B1 (de) 1989-03-08

Family

ID=9319108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104384A Expired EP0200008B1 (de) 1985-04-29 1986-04-01 Verriegelte und dichte Schachtabdeckung

Country Status (6)

Country Link
US (1) US4763449A (de)
EP (1) EP0200008B1 (de)
AT (1) ATE41186T1 (de)
DE (1) DE3662285D1 (de)
ES (1) ES296601Y (de)
FR (1) FR2581103B1 (de)

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US5611640A (en) * 1994-05-27 1997-03-18 Bowman; Harold M. Method and apparatus for anchoring a utility grate cover
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US5956905A (en) * 1997-02-06 1999-09-28 Wiedrich; Dwight G. Manhole adjusting extension member
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KR100649612B1 (ko) 2004-03-09 2006-11-24 신운철 맨홀뚜껑의 이탈방지장치
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US20070081856A1 (en) * 2005-10-12 2007-04-12 Degreef Richard Method and apparatus for locking a manhole cover
EP2057079A2 (de) * 2006-08-25 2009-05-13 Gmi Composites Inc. Verstärkte verbund-schachtabdeckungsbaugruppe und komponenten davon
FR2925536B1 (fr) * 2007-12-20 2011-04-15 Saint Gobain Pont A Mousson Regard de chaussee
KR100895849B1 (ko) 2008-10-14 2009-05-06 (주)한국주조 측면고정구조를 갖는 맨홀장치
US8573883B2 (en) 2008-11-14 2013-11-05 Munro Ltd. Integrated frame and cover system
KR100949742B1 (ko) 2009-06-15 2010-03-25 삼화주철공업 주식회사 탄성 부재를 포함하는 잠금 장치 및 이를 이용하는 맨홀
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CA2859219C (en) * 2011-12-15 2019-03-05 Im2 Merchandising And Manufacturing Inc. Manhole cover assembly with cams
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US8851790B1 (en) * 2013-08-29 2014-10-07 The Bilco Company Watertight hatch
US20150204046A1 (en) * 2014-01-17 2015-07-23 Jerry D. Taylor Manhole cover locking device
US9790714B1 (en) * 2016-03-31 2017-10-17 David Stadler Locking cover assembly for preventing unauthorized access to a utility shut off valve
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Also Published As

Publication number Publication date
US4763449A (en) 1988-08-16
EP0200008A1 (de) 1986-11-05
DE3662285D1 (en) 1989-04-13
FR2581103A1 (fr) 1986-10-31
ES296601Y (es) 1988-05-16
FR2581103B1 (fr) 1987-05-29
ES296601U (es) 1987-12-01
ATE41186T1 (de) 1989-03-15

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