EP0414687A1 - Couvercle de robinet d'arret et bague d'extension pour un tel couvercle - Google Patents

Couvercle de robinet d'arret et bague d'extension pour un tel couvercle

Info

Publication number
EP0414687A1
EP0414687A1 EP19890900589 EP89900589A EP0414687A1 EP 0414687 A1 EP0414687 A1 EP 0414687A1 EP 19890900589 EP19890900589 EP 19890900589 EP 89900589 A EP89900589 A EP 89900589A EP 0414687 A1 EP0414687 A1 EP 0414687A1
Authority
EP
European Patent Office
Prior art keywords
cover
extension ring
housing
ring
stop
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Withdrawn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
EP19890900589
Other languages
German (de)
English (en)
Inventor
Per Normann Lund Pedersen
Jens Kobberup
Knud Erik Jorgensen
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.)
HOLSTEBRO JERNSTOBERI AS
Original Assignee
HOLSTEBRO JERNSTOBERI AS
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 HOLSTEBRO JERNSTOBERI AS filed Critical HOLSTEBRO JERNSTOBERI AS
Publication of EP0414687A1 publication Critical patent/EP0414687A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00—Methods or installations for drawing-off water
    • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B9/08—Underground hydrants
    • E03B9/10—Protective plates or 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
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination

Definitions

  • Stop-cock cover and extension ring therefor Stop-cock cover and extension ring therefor.
  • the present invention relates to a stop-cock cover or a corresponding covering device, which, usually in a roadway, provides an inlet passage between the upper rim of a valve well and an upper access opening having a removeable cover.
  • this cover In roadways it is essential that this cover is situated at road surface level and is fairly easily removeable despite being tightly enclosed by the road surface.
  • the upper end of the valve well normally lies somewhat below the road surface and as a connection element is used a stop-cock cover, which is a comparati ⁇ vely heavy cast iron structure in the form of an upward ⁇ ly slightly converging pipe piece, which at its bottom has a protruding collar for placing on the upper rim of the valve well and at the top has a mouthing for suppor ⁇ ting the upper, removeable cover.
  • This cover structure is mounted on the well prior to the laying out of the road surface or before a local digging up of the lane, and at the laying out or a local re-establishment of the road surface it is ensured that this is laid right up _to-- the rim of the upper cover.
  • the cover may be bottom swaged in the mouthing of the cover structure such that also the top of the latter is flush with the road sur ⁇ face, while the cover is easier to remove, because it is in no direct holding engagement with the road surface.
  • the object of the invention is to provide a stop ⁇ cock cover with an associated extension ring, which is well suited to be placed on the cover housing in a stable manner, and where the various elements still are well suited to be produced as castings, and besides are handy in a very simple manner for the achievement of the stable engagement.
  • the extension ring being shaped with a number of lower, downwardly and outwardly protruding gudgeons which by the placing of the extension ring on the top of the cover housing can be led down into respective bayonet lock grooves provided in the upper part of the inner side of the housing in such a manner that the extension ring can be placed in its position supported by the top of the housing and then be turned into a locked position in which it is prevented from being pulled up, the hold ⁇ ing crooks at the same time at least contributing to support the extension ring in the transverse directions in the top part of the housing, the downwardly protrud ⁇ ing, cylindrical plug portion of the upper cover being provided with longitudinal side grooves which at the lowering of the cover can accommodate the basic parts of the holding crooks, which are inwardly projecting rela ⁇ tive the inner side of the extension ring.
  • the invention requires a specially designed extension ring and modified designs of both the cover housing and the upper cover, but it is a matter of quite coarse special shapes, which neither casting technically nor in other ways give rise to particular problems.
  • the extension ring can be mounted in a quite simple manner by being lowered and modestly turned, and with regard to sight the ring will not cause any significant reduction of the clear at the top of the cover housing as the crooks at. • - their rear sides need only be slightly inwardly project ⁇ ing into the usual clear.
  • the cover can still both be supported and roughly tighten against the inner side of the housing top and against the inner sides of the ex ⁇ tension rings, and both the extension ring and the cover will be effectively supported in the lateral di ⁇ rections.
  • the cover housing and the extension ring is preferably pro ⁇ vided one or more axial grooves, which in the locked final position of the extension ring flush with one another, while the cover plug correspondingly comprises one or more projecting rib portions, which then at the placing of the cover projects down through these grooves to effective turning locking of both the extension ring and the cover relative the cover housing. It will be appreciated that also this effect is achievable through quite rough and simple means.
  • Fig. 1 is a perspective view of a stop-cock cover with extension ring
  • Fig. 2 is a corresponding view for further illu ⁇ stration of the inventioan
  • Fig. 3 is a plan view of the extension ring as seen from above.
  • the stop-cock cover shown in Fig. 1 is constituted by a cover housing portion 2, which is a cast member, comprising a conical tube portion 4 with a lower, out ⁇ wardly projecting collar flange 6, and an upper cover 8 having a top plate portion 10 and a cylindrical plug portion 12 depending therefrom.
  • This cover can be put down in the upper end of the cover housing 4, but as said it may be advantageous to insert an extension ring between these parts, and such an extension ring is shown by 14 resting on the top of the housing 4.
  • the housing 4 is placed with the lower flange 6 resting against the upper rim of a valve well 16, which e.g. may be a con ⁇ crete pipe.
  • the part of the cover plate 10 projecting beyond the cylindrical plug portion 12 is at its lower side shaped outwardly and upwardly inclined, and the upper rims of both the cover housing 4 and the extension ring 14 is shaped with a corresponding conicity, such that the cover plate 10 is supported in a centered manner and such that it does not need to be upwardly protruding from the said upper rims, i.e. a surrounding road sur ⁇ face can fit the stop-cock cover tightly without ob ⁇ structing the removal of the upper cover.
  • the known main layout of a stop-cock cover is main ⁇ tained in principle by the invention such that the posi ⁇ tion of the upper cover 8 may be raised by inserting an extension ring 14 between this cover and the cover hous ⁇ ing 4.
  • the extension ring 14 is provided with some crooks 16 which are downwardly projecting from the inner side of the extension ring by a shaft portion 18, which has a certain thickness rear ⁇ wards or inwards towards the centre of the extension ring, and which at the bottom continues in an outwardly projecting hook portion 20.
  • This portion is only projecting to approximately half the casting thick- ness of the extension ring, the diameter and thickness of which otherwise correspond with the top of the cover housing 4.
  • vertical groove portions 22 are provided, which can accommodate the hook portions 20 at the lowering of the extension ring on the housing top and which continue into a lower widening or recess 24 in the inner wall of the housing 4, down below an upper recess rim 26.
  • This rim extends in the rotational direction towards the right to a ver ⁇ tical rib 28, which seen in this rotational direction is situated immediately in front of the next groove portion 22.
  • extension ring 14 can hereby be lowered onto the top of the housing 4 by guiding down of the hooks 20 in the grooves 22, after which the extension ring can be turned until the hooks 20 hit the respective ribs 28, whereby the extension ring will be effectively secured against being pulled up from the housing 4, while the extension ring will con ⁇ stitute an upward extension of the top part of this housing 4.
  • an extension ring of such height may be chosen that it corresponds to the required raising of the upper cover 8.
  • the engaging portions 16,18,20 are rearwardly or inwardly projecting into the lowering path of the cover 8, and since the latter is desired to project quite far downwardly the outer side of the plug portion 12 of the cover is provided with vertical grooves 30, which at the following lowering of the cover can pass down along the inwardly protruding projections 18, while, moreover, the plug portion concerned coarsely tightens against the inner side of both the extension ring 14 and the top of the housing 4.
  • the recess rim 26 will render it impos ⁇ sible for the extension ring to be lifted from the established engagement with the top of the housing 4, and the extension ring 14 will be securely supported against the inner wall of this top portion in the hori ⁇ zontal plane.
  • An axial groove 32 is provided in the inner side of the extension ring 14 at two opposed places, these grooves being placed such that after the insertion and the locking rotation of the extension ring 14 they will be flush with a couple of the grooves 22 in the inner wall of the upper end of the housing 4.
  • the cover plug 12 is provided with some projecting ribs 34, which at the lowering of the cover 8 will pass through the flush grooves 32 and 22 and thereby obstruct a mutual turning occurring among the cover, the exten ⁇ sion ring and the housing in the assembled condition.
  • the housing 4 is securely anchored in the road surface this will, in fact, mean that by affection of the cover 8 no unintended situation will be caused, by which the extension ring 14 is turned to a releaseable position relative the housing 4.
  • the cover 8 is provided with a central indentation 36 having a transverse peg 38, by the aid of which the cover may be caught and lifted with a suitable tool, but of course the cover may be arranged such as to be taken up in any other manner.
  • the lower side of the cover or the upper side of the housing top, respectively of the extension ring may have an outwardly open, radial groove - as shown by 40 - in which a pole tool may be inserted for initial raising of the cover.
  • rotational locking of the extension ring may also be brought about by means of the grooves 30 in the cover 10,12, viz. if at the inner side of the housing 4 there are proveded inwardly pro ⁇ truding knobs underneath the end positions of the lock crooks 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (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)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Valve Housings (AREA)

Abstract

Lors de la pose d'un nouveau revêtement sur une route, il est difficile d'élever le niveau des couvercles des robinets d'arrêt situés à la surface ou sous la surface de la route, étant donné que les couvercles supérieurs (8) doivent après la pose être situés à la surface de la route. On sait déjà que, pour élever le couvercle supérieur (8), il est plus facile d'utiliser une bague d'extension (14) qui est placée sur le dessus du logement (4) du robinet d'arrêt, mais on a découvert qu'avec les procédés connus pour stabiliser la bague d'extension on n'obtenait pas de fixation satisfaisante de la bague. La présente invention décrit un système simple, dans lequel la bague d'extension (14) peut être efficacement bloquée sur le dessus du logement (4), par un organe bloquant par interpénétration du type à baïonnette (20, 22, 26), et le couvercle supérieur (8) est utilisé pour immobiliser l'organe bloquant par interpénétration à baïonnette grâce à son abaissement sur la bague d'extension, au moyen de parties d'arêtes externes (34), qui, sur les côtés d'une partie bouchon cylindrique (12) dépendant du couvercle, sont guidées vers le bas en prise avec des encoches de fixation affleurantes (32, 22) ménagées dans la bague d'extension (14) et dans la partie supérieure du logement (4) du couvercle du robinet d'arrêt.
EP19890900589 1987-12-11 1988-12-12 Couvercle de robinet d'arret et bague d'extension pour un tel couvercle Withdrawn EP0414687A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK6504/87 1987-12-11
DK650487A DK650487A (da) 1987-12-11 1987-12-11 Stophanedaeksel og mellemring dertil

Publications (1)

Publication Number Publication Date
EP0414687A1 true EP0414687A1 (fr) 1991-03-06

Family

ID=8148812

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890900589 Withdrawn EP0414687A1 (fr) 1987-12-11 1988-12-12 Couvercle de robinet d'arret et bague d'extension pour un tel couvercle

Country Status (4)

Country Link
EP (1) EP0414687A1 (fr)
AU (1) AU2819189A (fr)
DK (1) DK650487A (fr)
WO (1) WO1989005381A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705981B1 (fr) * 1993-06-02 1995-08-25 Bayard Bouche à clé rehaussable perfectionnée.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT277090B (de) * 1968-04-11 1969-12-10 Hawle & Co Kg Flanschen Und Ar Straßenkappe, insbesondere für Absperrorgane erdverlegter Wasserleitungen od.dgl.
BE759178A (fr) * 1969-12-04 1971-04-30 Pont A Mousson Regard de chaussee
FR2419363A2 (fr) * 1978-03-07 1979-10-05 Sambre & Meuse Usines Tampon pour regard circulaire et regard muni de ce tampon
US4690584A (en) * 1985-04-17 1987-09-01 E. L. LeBaron Foundry Co. Apparatus for securing adjustable support structures for manhole covers, grates and the like

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8905381A1 *

Also Published As

Publication number Publication date
DK650487A (da) 1989-06-12
WO1989005381A1 (fr) 1989-06-15
DK650487D0 (da) 1987-12-11
AU2819189A (en) 1989-07-05

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