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
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D2200/00—Geometrical or physical properties
  • E02D2200/16—Shapes
  • E02D2200/1607—Shapes round, e.g. circle
  • E02D2200/1614—Shapes round, e.g. circle made from single element
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D2300/00—Materials
  • E02D2300/0026—Metals
  • E02D2300/0029—Steel; Iron
  • E02D2300/0031—Steel; Iron in cast iron form

Definitions

• the invention relates to a manhole cover with a frame and a cover which can be inserted therein, the cover having a base plate which is essentially covered by an insert plate.
• Such manhole covers are installed in driveways, pedestrian passages or the like, the frame being embedded in a road surface and the cover then being inserted into the frame. It is known that the covers are usually at least two parts and the cover has a cover plate which has a corrugated, non-slip surface. From DE-GM 1 956 898 a manhole cover with a frame and a cover is known which has a corrugation on its surface. The bowl-shaped cover has a concrete filling on which a corrugated plate covering the concrete filling is placed. The corrugated plate is firmly connected to the concrete filling by means of anchoring links. A disadvantage of this embodiment is that the corrugated plate e.g. after their wear and tear cannot be removed from the concrete filling and can be replaced by a new plate.
• a shaft cover which has a frame and a cover, a recess being formed on the top of the cover in which an insert plate is detachably received.
• the insert plate has blind threaded holes on its underside, into the holes that pass through the bottom of the lid
• the insert plate of the cover can be replaced without destroying it, but it is necessary to lift the entire cover out of the frame so that the insert plate can be removed from the cover.
• Another disadvantage of this solution is that the insert plate can only be rotated or aligned to a limited extent, because of the arrangement of the blind holes and the Through holes in the lid also the orientation of the insert plate is predetermined.
• the invention provides a manhole cover in which the insert plate is easily exchangeably fastened in the cover and can be aligned in as many directions as possible.
• a fastening ring is placed together on the base plate and the insert plate, the outer diameter of which corresponds to the outer diameter of the base plate.
• the insert plate whose outer diameter is slightly smaller than the outer diameter of the base plate, is received with its edge region.
• the mounting ring is releasably attached to the base plate.
• the base plate has a base and, at a distance below the base, a support surface surrounding the base.
• the insert plate is designed to be complementary to the base of the base plate and is placed on the base plate so that the base is encased by the insert plate.
• the length of the peripheral wall corresponds approximately to the height of the base.
• a protruding flange is provided which rests on the bearing surface of the base plate.
• the mounting ring is placed on the support surface of the base plate and the flange of the insert plate, the flange of the insert plate being in the recess in the underside of the
• Fastening ring and the insert plate lie approximately in one plane.
• the top of the fastening ring is flush with the top of the frame and on the other hand it stands a little Measure over the top of the extension plate.
• the top of the fastening ring is provided with a corrugation / a profile, the profile grooves of which extend at least into the plane of the insert plate.
• Mounting ring no liquid such as Rainwater stagnates openings are provided both in the mounting ring and in the base plate through which the water can flow into the channel below. At the same time, these openings often have the function of ventilating the duct.
• the visible or surface of the insert plate preferably also has a non-slip profile.
• the depth of the recess in the fastening ring is a certain amount less than the thickness of the insert plate, so that the insert plate is clamped between the two when the fastening ring is fastened to the base plate and is held absolutely securely against rotation.
• Base plate a circumferential elastic sealing ring, made of e.g. Neoprene provided.
• the cup-shaped insert plate which is manufactured using the deep-drawing process, for example, and which consists of, for example, polycarbonate or ABS, is concave on its surface.
• the curved design causes the peripheral edge of the insert plate, which initially protrudes upward, to be pulled down after the attachment and fastening of the fastening ring, and the insert plate thus lies completely on the base with its underside facing the base .
• the insert plate can be neutral, for example blackened or transparent. If the manhole cover is to be designed as an advertising motif support, a plate-shaped motif support is inserted between the transparent insert plate and the base plate and is clamped between the two.
• the insert plate Before the insert plate is finally clamped, it can be aligned with its profile formed on the top in accordance with the underlying motif, so that, for example, the profile does not run transversely to, for example, writing on the advertising motif support.
• the insert plate can, however, also be made of a different material, for example metal, whereby an image can be glued to the surface thereof, which is additionally provided with a protective layer.
• a compressible elastic underlay is inserted between the insert plate and the base plate or, if an advertising motif support is to be inserted, between the advertising motif support and the base plate.
• Elastic pad or pressure mat which can consist of, for example, foam rubber, has the advantage that no unintended cavities remain between the insert plate and base plate or between the insert plate, advertising motif carrier and base plate after the mounting ring has been installed. Rather, by clamping the insert between the base plate and the fastening ring, the insert is pulled down and pressed against the underlying elastic underlay or the advertising motif support, whereby the elastic underlay is compressed especially at its peripheral edges and thus provides additional protection against the ingress of liquids. Furthermore, this means that the advertising medium lies snugly against the insert plate, thereby reliably preventing the formation or deposition of condensed liquid between the advertising motif element and the insert plate. Since the elastic pad is particularly compressed at its peripheral edges, there is the effect that the top of the insert plate is slightly convex, which in turn causes, for example, rainwater to drain off particularly well from the insert plate.
• the fastening ring is made in one or more parts.
• the one-piece or multi-part fastening ring is formed by means of e.g. Hinge or hook mechanism is attached to the base plate and does not have to be lifted out of the frame to change the insert plate or the advertising motif support, but only needs to be opened.
• the mounting ring is pivotally anchored on one side and has on the opposite side e.g. several detachable fasteners.
• the fastening ring is preferably fastened by means of securing elements such as screws, locking thumbs, bolts, which are each accessible from the top of the fastening ring. These locking elements are designed so that they can only be operated with special tools.
• the in the mounting ring e.g. countersunk screws can also be attached with e.g. Pollution are protected.
• the screw heads themselves can also be designed as part of the non-slip profile.
• guide elements on the support surface of the mounting ring e.g. Pins are provided, which fit into corresponding recesses in the base plate with a precise fit.
• the guide elements can also be provided on the base plate, which then engage in recesses in the fastening ring.
• securing elements such as screws.
• These securing elements can be from the Fastening ring be covered so that they are secured by the fastening ring against their loosening and are also protected against the weather.
• a tool which is preferably a special tool.
• the cover can be detached from the frame without first having to detach the fastening ring.
• the described manhole cover can also be embedded in the floor as a so-called blind cover without a manhole underneath and serve only as an advertising medium.
• the manhole cover with its frame, the insertable cover with base plate, insert plate and, if applicable, advertising motif carrier and fastening ring can have any shape adapted to the corresponding manhole and thus round, square or the like. be formed.
• the frame, the base plate and the fastening ring preferably consist of cast steel. If such a manhole cover is used as a blind cover and is to be used in zones with less external stress, this can e.g. also be made of high-strength plastic.
• manhole cover according to the invention is illustrated by way of example with the aid of the drawing.
• FIG. 1 shows a schematic illustration of a plan view of the cover of a manhole cover
• Fig. 2 shows a schematic sectional view of the lid
• Insert plate; 3 shows a schematic representation of the insert plate according to claim 2.
• Fig. 1 the mounting collar 2 and the neutral visible surface (profile on the surface is not drawn) Insert plate 3 of a cover 1 shown, which can be inserted into a shaft cover frame which is customarily embedded in the ground or a road surface.
• the fastening ring 2 is screwed to the base plate by means of six fastening screws 4.
• Fastening ring 2 is profiled with projections 5 distributed at regular intervals, the fastening screws 4 also being arranged within one of these projections 5. Openings 15 run through the top of the fastening ring 2 and are formed above the openings in the base plate (not shown) and serve to vent / vent the shaft. Furthermore, the fastening ring 2 has mounting openings (not shown) which serve to be able to lift the fastening ring 2 off the base plate.
• the base plate 6 has a base 8 and a bearing surface 7 surrounding it.
• the cup-shaped insert plate 3, which surrounds the base 8, is placed on the base 8.
• An elastic pad 10 is placed on the base 8, on which in turn the plate-shaped advertising motif support 9 is arranged.
• the insert plate 3 with the intermediate advertising medium 9 and elastic base 10 is pressed against the surface of the base plate 6.
• At least one sealing ring 11 is fixed between the insert plate 3 and the base plate 6 and a further sealing ring 12 can be arranged between the insert plate 3 and the fastening ring 2.
• the insert plate 3 according to the embodiment according to claim 2 has a circumferential flange 14 at its free end, which is clamped between the bearing surface 7 of the base plate 6 and the fastening collar 2.
• a non-slip profile in the form of protruding knobs 13 is formed on the top of the insert 3.

Landscapes

• 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)

Applications Claiming Priority (5)

Publications (2)

Family

ID=26049573

Family Applications (1)

Country Status (4)

Family Cites Families (4)

• 1999
  • 1999-10-04 AT AT99957850T patent/ATE220153T1/de not_active IP Right Cessation
  • 1999-10-04 AU AU15460/00A patent/AU1546000A/en not_active Abandoned
  • 1999-10-04 EP EP99957850A patent/EP1121494B1/fr not_active Expired - Lifetime
  • 1999-10-04 WO PCT/DE1999/003192 patent/WO2000023661A1/fr not_active Ceased

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events