EP0733744A1 - Strassenkappe - Google Patents

Strassenkappe Download PDF

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Publication number
EP0733744A1
EP0733744A1 EP96301690A EP96301690A EP0733744A1 EP 0733744 A1 EP0733744 A1 EP 0733744A1 EP 96301690 A EP96301690 A EP 96301690A EP 96301690 A EP96301690 A EP 96301690A EP 0733744 A1 EP0733744 A1 EP 0733744A1
Authority
EP
European Patent Office
Prior art keywords
box
lower portion
upper portion
seating faces
tubular
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Withdrawn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
EP96301690A
Other languages
English (en)
French (fr)
Inventor
Brian Green
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.)
Severn Trent Water Ltd
Original Assignee
Severn Trent Water Ltd
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 Severn Trent Water Ltd filed Critical Severn Trent Water Ltd
Publication of EP0733744A1 publication Critical patent/EP0733744A1/de
Withdrawn legal-status Critical Current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
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination
    • 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

Definitions

  • Surface boxes are lidded housings for installation in the ground to enable access to be gained to, for example, valves, taps and meters of water supply, and other, buried equipment associated with public utilities. They can also provide hydrant and manhole covers. It is commonly desirable that a top surface of the box be maintained flush with the surrounding surface of the ground, so that the installation creates no step or cavity in the ground.
  • the invention provides, in one of its aspects, a surface box comprising a tubular lower portion, a tubular upper portion which fits as a sleeve around the lower portion and can be seated on the lower portion in any one of a plurality of positions of relative rotational adjustment between the two, determining different heights for a top surface of the box above the lower portion, the upper and lower portions together forming an access passage through the box in all positions of rotational adjustment, and a removable closure member which is received within the upper portion to close the passage.
  • the lower portion of the box is provided with a plurality of sets of common-level seating faces which co-operate with seating faces of the upper portion in each position of relative rotational adjustment of the portions to provide different height settings.
  • the upper portion may comprise discrete lands raised from an inside surface of a tubular body, the lands being uniformly disposed about the body and forming bearers providing the seating faces arranged to engage those of the lower portion.
  • the lands of the upper portion may also form seating faces for the removable closure member.
  • each common-level set comprises three (and only three) seating faces, to ensure stable three-point support of the upper portion on the lower.
  • a surface box shown installed in Figure 1, comprises three separate sections: a lower section 1 as shown also in Figures 2 and 3, an upper section 2 as shown also in Figures 4 and 5, and a core section 3 as shown also in Figures 6 and 7.
  • the lower section 1, shown in Figures 2 and 3, comprises a cylindrical tubular body 4 which is arranged to stand on a base by means of an externally projecting ground-engaging flange 5 at a bottom end.
  • the tubular body 4 has a circumferentially-stepped form at its top end, three identical sets of steps 6,6',6" being provided.
  • the sets of steps rise successively from three lower end faces 7,7',7" of the top end of the body which are distributed at 120° intervals about the body axis at a common lower level.
  • Each set of steps represents five equal height rises of 10mm to upper end faces 8,8',8" at a common upper level (and one fall of 50mm back to the lower level) at regular circumferential intervals of twenty degrees of arc about the body axis.
  • V-shaped notches 9,9',9" in the tubular body 4 interrupt the end faces, being positioned centrally in the faces.
  • the three seating faces of each set lie generally in a common plane perpendicular to the body axis, the faces may be at least slightly inclined in circumferential and/or radial directions, for purposes of improving interlocking with the upper section 2.
  • the upper section 2 of the surface box (see Figures 4 and 5) comprises a cylindrical tubular body 10 provided with an external circumferential beading 11 forming a rim at its upper end.
  • the body 10 has an inside diameter slightly greater than the outside diameter of the body 4 of the lower section 1, so as to enable the former to be fitted as a close-fitting sleeve over the latter.
  • each bearer has a flat upper end face 13,13',13" separated into two equal parts by a central V-shaped rebate 14,14',14" in the bearer which forms a plug seating (to be referred to hereinafter).
  • each bearer presents two downwardly-facing lower end faces.
  • One of the lower end faces 15,15',15" is simply flat.
  • the other lower end face 16,16',16" is at a lower level (10mm lower) than the first face and presents a flat face separated into two equal parts by a central downwardly-projecting triangular nib 17,17',17".
  • the two lower end faces are of equal width, each extending for twenty degrees of arc circumferentially of the tubular body.
  • Inner locating surfaces 18,18',18" of the three bearers are of uniform part-cylindrical form centred on the axis of the tubular body.
  • the corresponding seating faces of the bearers lie generally in a common plane perpendicular to the body axis, the faces may be inclined to co-operate with inclined seating faces of the lower section 1.
  • the core section 3 (see Figures 6 and 7) of the surface box is in the general form of a hollow cylinder which is closed at a top end and open at a bottom end, the section standing upright in normal use. It comprises a generally cylindrical tubular body 19 which is closed off at its top end by means of a capping portion 20 of the section.
  • the outside diameter of the body 19, at a cylindrical outer surface 21, is slightly less than the common inside diameter of the three locating surfaces 18, 18', 18" of the upper section 2 and the inside diameter of the body 4 of the lower section (i.e. at a cylindrical inside surface 4'), enabling it to be fitted as a core within those two.
  • the capping portion 20 of the core section provides a cover 22 for the top end of the body 19.
  • the cover has a small opening providing a lifting keyway 23 formed in its centre.
  • the capping portion forms also a cylindrical rim 24 extending all around a top end portion of the body 19 and being of an outside diameter slightly less than the diameter of the inside surface 10' of the upper section 2.
  • the capping portion of the core section is so arranged to be received as a plug within the upper portion 10.
  • three uniformly-distributed triangular projections 25,25',25" depend from the underside of the rim 24 for accommodation in the three rebates 14,14',14" of the upper section bearers.
  • the three sections of the surface box are shown assembled together in Figure 1, the box being installed below the surface S of a highway.
  • the lower section 1 is shown standing on an annular chamber section 26, the box so being mounted in a fixed position over a water supply valve spindle 27 sunk into the ground below the surface of the highway.
  • the three sections are shown assembled with the upper section 2, together with the core section 3, in a lowest position of adjustment.
  • the arrangement so provides for six different height settings of the upper and core sections on the lower section, at 10mm intervals, giving a final surface level tolerance of ⁇ 5mm without packings.
  • the box design is seen to be based on a three-point support system to prevent rocking. It utilises a deep core section 3 to avoid flip-out by road traffic; the length to diameter ratio of the core section is preferably at least 0.67. All three sections of the box can suitably be cast in spheroidal graphite iron.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical 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)
  • Sewage (AREA)
EP96301690A 1995-03-22 1996-03-12 Strassenkappe Withdrawn EP0733744A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9505779 1995-03-22
GBGB9505779.0A GB9505779D0 (en) 1995-03-22 1995-03-22 Surface box

Publications (1)

Publication Number Publication Date
EP0733744A1 true EP0733744A1 (de) 1996-09-25

Family

ID=10771641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96301690A Withdrawn EP0733744A1 (de) 1995-03-22 1996-03-12 Strassenkappe

Country Status (2)

Country Link
EP (1) EP0733744A1 (de)
GB (1) GB9505779D0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29520957U1 (de) * 1995-03-27 1996-05-23 Feit, Josef, 92681 Erbendorf Straßenkappe
WO2000052273A1 (de) * 1999-02-26 2000-09-08 Aco Severin Ahlmann Gmbh & Co. Kg Ablauf
CN110835946A (zh) * 2019-11-11 2020-02-25 衡阳市业通塑胶有限公司 一种改进的管道积水器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486612A (fr) * 1968-02-29 1970-02-28 Gisling S A Regard dont le niveau du couvercle est réglable par degrés
AU3984372A (en) * 1971-04-22 1973-09-13 Evola Concrete Pipes Limited Manhole capping
DE9004693U1 (de) * 1990-04-26 1991-09-05 Planert, Jochen, 6349 Greifenstein In der Höhe verstellbare Schieberkappe
GB2265174A (en) * 1992-03-02 1993-09-22 Philmac Pty Ltd Height adjuster for a boundary box or manhole cover in a paved location

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486612A (fr) * 1968-02-29 1970-02-28 Gisling S A Regard dont le niveau du couvercle est réglable par degrés
AU3984372A (en) * 1971-04-22 1973-09-13 Evola Concrete Pipes Limited Manhole capping
DE9004693U1 (de) * 1990-04-26 1991-09-05 Planert, Jochen, 6349 Greifenstein In der Höhe verstellbare Schieberkappe
GB2265174A (en) * 1992-03-02 1993-09-22 Philmac Pty Ltd Height adjuster for a boundary box or manhole cover in a paved location

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29520957U1 (de) * 1995-03-27 1996-05-23 Feit, Josef, 92681 Erbendorf Straßenkappe
WO2000052273A1 (de) * 1999-02-26 2000-09-08 Aco Severin Ahlmann Gmbh & Co. Kg Ablauf
CN110835946A (zh) * 2019-11-11 2020-02-25 衡阳市业通塑胶有限公司 一种改进的管道积水器

Also Published As

Publication number Publication date
GB9505779D0 (en) 1995-05-10

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