CZ9904037A3 - Shaft covering - Google Patents

Abstract

The invention relates to a manhole cover for use especially with sewer manholes or such like installed in road surfaces (8). Said cover comprises at least one concrete ring which after installation receives a cover element (5) on an upper supporting rim (6) situated above a through opening (3) surrounded by said supporting rim, and which surrounds an upper area (7) of the manhole shaft element (4). The concrete ring is embodied as a formed body (1) which below the supporting rim (6) has an enlarged through opening (3) in which the manhole shaft element (4) is housed. The formed body (1) has a profiled projecting part (9) at the level of the through opening (3), which part along its outer circumference forms an enlarged support contour (10).

Description

ŠACHTOVÝ KKLOP

Technical field

The invention relates to a manhole cover for sewer manholes or the like, provided in particular in running surfaces according to the preamble of claim 1.

BACKGROUND OF THE INVENTION

Known manhole covers for sewage structures provided in running surfaces, such as inlet manholes, inspection manholes or the like, consist of a concrete ring which engages the lid on the inside and which is inserted from the outside into the respective load-bearing layers and / or paving running surfaces. High pressure loads due to vehicles or the like. they can lead to displacements of the concrete ring from its built-in position, which results in disadvantageous road damage.

SUMMARY OF THE INVENTION

The invention deals with the problem of providing a manhole cover for sewer manholes or the like, provided primarily in running surfaces, the structural elements of which are permanently supported with low technical costs over a long period of time.

78783 (78783a.doc) ························ • towards the running surface and in the upper area of the shaft section, provide a long-lasting seal.

Starting from the manhole cover according to the preamble of claim 1, the invention solves this object by the features of the characterizing part of claim 1. With reference to the essential further embodiments, reference is made to claims 2 to 22.

The manhole cover according to the invention is formed by a shaped body having an expanded support and overlap contour compared to known concrete rings so as to absorb the pressure loads caused by vehicles in the area of the sewer shaft and prevent damage by vertical and / or horizontal displacements of components.

In an expedient embodiment, the upper annular region of the shaped body extending in the plane of the travel surface is minimized so as to provide only a slight surface on which the pressure is applied. At the same time, the support contour of the shaped body, widened on the outer perimeter from the bottom side, is integrated into the road structure so that the edge area of the annular forming a broad bearing surface on the ground is prevented. also undesirable expansion in the upper joint area. The outer support contour of the shaped body engages in the installed position a traveling top layer, such as an asphalt layer, pavement or the like, so that additional support is achieved in this endangered area of the bearing surface near the shaft component.

In the region of its through hole there is a shaped body s

78783 (78783a.doc)

The profile extension is designed so that it is telescopically insertable into the interior space of the shaft part and thus enables a height-adjustable plug connection. In this connection, elastic sealing rings are designed as an immediate support between the interlocking regions, so that the components in the vertical and horizontal flexible installation positions can also accommodate slight displacements without overloading and the manhole cover has a totally fluid-tight connection regions.

The molded body can be produced in any desired design as a composite casting with a concrete-embedded insert, for example of metal, plastic and / or in the form of a rubber body, so that a quick adaptation to the manhole covers can be adapted to customer requirements . By varying the quality of the cast concrete, different strength requirements can be fulfilled, such that the expanded profile extension in the area of the through hole and the support contour of the shaped body are adapted to high loads and the shaft cover components have a fairly high long-term stability.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a shaped body according to the invention as a single part in a first embodiment;

78783 (78783a.doc) • 4 fig.

and 3 shows a cross-sectional view of the shaped body similar to FIG. 1 with the shaped body in the built-in position extending over the shaft part, a cross-sectional view of the shaped body in two-part design with sleeves forming a permeable opening;

Fig. 4 shows the cross-section in the built-in position, similar to Fig. 4, of the molded surface, in the two-part design, up to 11 cross-sectional views of the molded body, designed as a multi-piece assembly; sealing ring assembly, up to 18 composite casting moldings with various inserts, such as up to 22 one-piece moldings similar to FIG. 2 in a built-in position with an adjustment member directed to the shaft portion, top view of the shaft cover according to section plane XXIII -XXIII in Fig. 24 with retaining

78783 (78783a.doc) 3?

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 24 to 26 show a section through the manhole cover according to plane XXIV-XXIV in FIG. 23, FIG. 27 an enlarged cross-sectional view of the connecting region of the mold body and the tubular part, FIG. 28 a cross-sectional view similar to FIG. Fig. 29 is an enlarged sectional view of the connection of the molded body and the tubular section of Fig. 28 and Figs. 30-33 of the seal section in the support region of the tubular section on the shaft portion similar to Fig. 29.

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1, the shaped body for the shaft cover 2, shown in principle in FIG. 5, is shown as a whole and an annular concrete part, with its lid 5 closing the permeable opening 3 above the shaft part 4 extending vertically towards the running surface 8 ^. The lid 5 is fastened in the molded body 7 above the upper abutment edge 6, and the through hole 3 of the molded body 1 also surrounds the upper region 4 of the shaft part 4 according to the invention.

78783 (78783a.doc) type of plug connection.

The shaped body 1 according to the invention is provided with a profile extension% extending the area of the through hole 3, and on the outer circumference the shaped body 1 has an extended support contour 10 from the bottom side (FIG. 1).

In an expedient embodiment, the shaped body 1 has a tubular portion 13 in the region of the profile extension 9, which both delimits the permeable opening 3 and forms an annular gap 12 and achieves a height-variable installation position (FIG. 2). 1, 2 and 3 as well as 13 to 20, the tubular portion 13 is formed in one piece with the molded body 1, and in other embodiments according to FIGS. 4 to 13, the tubular portion formed by a single part forming a sleeve 13 'with an upper support ring 14, which can be hinged, for example, in the upper region of the through hole 3 of the shaped body 1 on the support edge 6 (FIG. 4).

Figures 4 and 5 show a first embodiment of a multi-part embodiment of a shaped body 1 forming a manhole cover 2, whereby after positioning it in the installed position the sleeve 13 'can be inserted as a single part into the shown connecting position and thereby assembly of the manhole cover 2 simplified overall.

Figures 6 to 8 show further multi-part embodiments of the shaft cover 2, whereby the shaped body ^{1 is} connected to the sleeve 13 ^{1 by an} intermediate ring 15 having a Z-section

78783 (78783a.doc) and the variable dimensions of its support arm 17, 17 ¹ allows adaptation to different parts of the shaft _4. The intermediate ring 15 can be made of metal, for example cast iron, or it can be formed of plastic.

In the embodiment according to FIG. 8, the shaped body 1 is divided into a further intermediate ring 16 above its support contour 10, so that the shaft cover 2 has four components which, in particular for the assembly of large shaft covers, allow simple handling by small individual weights. In FIG. 10, a further multi-part embodiment of the molded body 1 shows a bottom support annular plate 17 which retains the molded body 1 at the lower outer edge of the support contour 10, thus allowing a favorable enlargement of the support surface. The sleeve 13 is ¹ in the region of the supporting ring 14 is provided with an extension 18 which rests directly on the upper side of the molded body 1. Nozzle 13 'It can be formed of concrete or may consist of metal, e.g. cast iron.

The embodiment of the molded body 1 according to FIG. 9 shows its design as a composite casting, wherein the insert E forming the top hatch 20 is embedded in the concrete structure 19 so that the molded body 1 has the upper edge protection in alignment with the running surface 8. .

The embodiment of the molded body 1 as a composite casting according to FIG. 11 shows a further embodiment of the shaft cover 2, wherein the inner sleeve 13 'in abutment bears on the annular plate 21 connected to the cover part 20 ¹ as an insert E and this plate is on its side leaning against the outside

78783 (78783a.doc)

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an annular body 22 from the bottom side.

In the embodiment of FIG. 13 is a shaped body 1 shaped as in FIG. 2, in the area close to the upper support edge 6 forming a sealed metal ring 20 ^{1 1} as edge protection element E.

The embodiments of the molded body 1, designed as a composite casting, according to FIGS. 14 to 18, represent further combinations of inserts E, consisting mainly of metal parts, in the connection position with the concrete structure. In Fig. 14 the insert E is designed as a metal blank, connecting the cover part 20 'in one piece with the tube 23 to the tubular part 13 ¹¹ . In FIG. 15, a tubular member 13 ¹ 'of the metal blank 25, cast in the profiling of the support 24 integral with shaped body 1 and on the upper side of the shaped body 1, the lid 20' also anchored abutment profilings 24 ^1. In Fig. 16, the tubular portion 13 is provided in its lower end region with a stabilizing metal extension 25.

The shaped body 1 is expediently designed as a hollow cylindrical body defining a longitudinal median plane M. It is also possible to make its circumferential contour more or even asymmetrically (M ¹ , Fig. 15) to form a supporting contour 10 ¹ that extends only over the partial circumferential contour area.

Both the embodiments according to FIGS. 17 and 18 show to a large extent a shortened tubular portion 13 similar to FIG. 1, wherein the shaped bodies 1 have inserts E which are provided with metal covers 28 above the support contour 10 towards the upper side of the shaped body 1, having different anchors

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27 Mar:

Figures 19 to 22 show the shaped body 2 with a substantially identical cross-sectional outline, the shaped bodies 1, shown at different support heights op, H ', show the telescopic effect of the tubular parts 13 during installation. Between the shaft parts (Fig. 21) being provided a matching section 4 ^1, formed as a reduction of the shaft diameter D, which has a sealing region ¹ 32 'and 33 ^1. The adaptation part 4 'according to FIGS. 19 and 20 can be provided in the form of a shaft cone.

In a preferred embodiment of the molded body 2 'or 2'. of the complementary components 15, 16, 22, 4 ', these assembly components are provided in their connecting regions formed in the built-in position with bearing portions 31 (FIG. 3) which act as a sealing ring 30 and consist, for example, of rubber or metal and can also be molded into cast concrete according to the type of composite casting. In addition, in a preferred embodiment, the tubular portion 13 and / or the tubular portion 13, respectively. the sleeve 13 ', 13 ¹¹ , on the outer surface directed to the annular gap 12, provided with a first sealing ring 32 which cooperates with the second sealing ring 33 provided on the inside of the support contour 10 so that the annular gap 12 is fluidly sealed as towards the liquid-permeable aperture 3, and towards the environment against liquid-penetration.

Adapting the tubular extensions 13, respectively. ¹ 13 allows centering the shaped body 1 in its mounted position, while in the field in the annular gap 12 to compensate

78783 (78783a.doc) • A A ·

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A A A A design deviations of the shaft part 4 and / or the molded body 1 so as to obtain a reliable sealing abutment of the parts. On its inner side, directed to the through hole 3, the support piece 10 has a shape bevel S, so that even at extreme displacements and / or inclined positions of the shaped body 1, a sharp-edged bearing with a notched effect on the shaft part 4 is avoided and largely avoided. damage.

In Fig. 12, the rubber sealing ring 30 is shown in enlarged detail, with the associated wall 34 having an annular recess 35, so that its pressure action acts on the sealing ring 30 by a fluid-tight, annular abutment of the components.

The built-in position of the cobblestones 36 forming the travel surface 10 of FIG. 5 shows the support effect of the support contour 10 in the region of the bearing arm 37 which can absorb the compressive forces (arrow F) acting on the travel surface 8 via the interlayer 38 so road damage.

23 to 33 show a multi-part embodiment of a manhole cover in a further embodiment, wherein the tubular part 113 or the tubular part 113 is supported from the underside of the molded body 1. FIG. 113 ¹ (FIG. 28), which can engage into the shaft portion 104, 104 ¹ (FIGS. 25, 26) of different depths T, T '(similar to FIGS. 21, 22). With this socket connection, the installation position of the manhole cover 2 is adapted to the height of the usable area in the region of the adjacent running surface 53, with a low load and simplified assembly.

78783 (78783a.doc) • 999 99,999 99,99 9,99 9,999,999

9 9 9 9 • 99 999 999 99 99

The tubular portion 113 is provided with an annular abutment surface 114 on the upper side, which can be permanently connected to the molded body 1 by a bonded joint K in the preassembly position (FIG. 25). In FIGS. 24, 26 to 29, in a second embodiment, a plurality of screw connections 115 are provided as dismountable connections of components, the U-section having rails 116 (FIG. 23), with their arms 117, 118 tapering downwardly directed bore holes. By means of a notch, in the longitudinal direction of the rails 116, the threaded sleeve 119 is longitudinally displaceably received (FIG. 27). Screws 120 penetrating the longitudinal bore 121 in the annular support surface 114 are made to engage the components. The screw connection can be made in the region of the longitudinal bore 121, in the area of which a precise flip of the components is possible during assembly.

The U-profile rails 116 are expediently embedded in the molded body during its manufacture (FIG. 27) and a fluid-tight connection of the molded body 1 to the tubular part 113 is made by the sealing ring 122 inserted prior to screwing. by shifting the parts, adapting the shaped body 1 to the paving installation plane 8. In an expedient embodiment, the tubular portion 113, 113 'consists of glass fiber-reinforced plastic (GFK), into which the connection openings, such as the slots 121 associated with the screw holes 120, are already formed during manufacture. Such a shaft portion 104 can be formed as a plastic tube, consisting of HD-PE. As a result, the shaft cover, with sufficient stability in the region of the plug connection of the pipe part 113, 113 'and the shaft part 104, 104', can be made

78783 (78783a.doc)

4 0 0 0 0 0

000 0 ·· 00 00 cheap design with low weight.

The embodiment according to FIGS. 28 to 33 shows a shaft portion 104 ¹ which is arranged as a dome shaft above the tank 123 and consists of a metal tube. It is also possible to provide such a shaft construction for an electric shaft, a pump shaft, a distribution shaft or the like. The tubular portion 113 'is provided with a profiling 124 in the region of its outer shell surface, in which the sealing ring 125 is fixed such that its flap portion 126 forms a vertical portion (arrow E, Fig. 28) of the tubular portion 113 ¹ into the shaft portion 104 ^1. fluid-tight connection. 30 to 33 show cross-sectional views of a plurality of embodiments of a profiling 124 on which a sealing ring 125 is fastened. In the region of this sealing connection, an anchoring part 127 is also provided on the shaft portion 104 ¹ from outside. for the shaft portion 104 'toward the surrounding cover layer.

The shaped body 1 with the adjacent tubular portion 113, 113 'is adjacent to the surrounding soil layer 130 and / or the surrounding soil layer. layers of lean concrete 131, gravel 132, gravel 133 and / or sand 134, supported so that compressive forces (F) are absorbed therein. The layers of the soil layer 130 can advantageously be sealed to the upper edge region when the shaft portion 104, 104 'is installed, so that this connection is free of pressure loads when the pipe portion 113, 113' is inserted.

Claims (21)

PATENT CLAIMS »··· JUDr. Milos Všetečka advocate 120 00 Prague 2, Halkova 2 9 99 99 9 · · · · U ^ ratferiáTetfana 9 99 9 9 9 » Manhole cover for sewer manholes or the like, provided primarily in running surfaces (8), consisting of a shaped body (1) formed as a concrete ring, which, in the installed position, on the upper abutment edge (6) above the permeable opening (3) it engages the lid (5) and has under the supporting edge (6) a widening of the through hole (3) engaging the upper region (7) of the shaft part (4), which adjoins the outer periphery of the shaped body (1) provided as an extended support contour (10) in the surrounding soil layer (38, 130), characterized in that the shaped body (1) is provided with a tubular part (13, 13 ', 113, 113') in the inner region of the profile extension (9). ), defining on one side a permeable opening (3) which on the other side towards the support contour (10) forms an annular gap (12) into which the shaft part (4) engages at least regionally by a plug connection. Manhole cover according to claim 1, characterized in that the shaped body (1) is provided with at least one sealing part in the region of the profile extension (9). Manhole cover according to claim 1 or 2, characterized in that, in the region of its annular joint (12), the shaped body (1) has a sealing ring (32) projecting from the tubular part (13) and / or on the inner side. 16 78783 (78783a.doc) | A sealing ring (33) is provided in the support contour (10) in such a way that the shaft part (4) is sealed fluidly. Manhole cover according to one of Claims 1 to 3, characterized in that the shaped body (1) is designed as a composite casting, in whose concrete structure at least one insert (E) of metal, plastic, rubber or the like is integrated. Manhole cover according to one of Claims 1 to 4, characterized in that the tubular part (13) is integrally molded with the shaped body (1). Manhole cover according to claim 5, characterized in that the tubular part (13) forms a permeable opening (3) with a conically widening inner wall and a cylindrical outer surface of the housing. Manhole cover according to one of Claims 1 to 6, characterized in that the shaped body (1) in a multi-part design (13 ', 16) and / or with additional components (15) forms an assembly unit. Manhole cover according to claim 7, characterized in that a single part is provided as a tubular part which is formed in the upper region of the permeable opening (3) of the shaped body (1) by a hinged sleeve (13 ') with the upper support ring (14). . Manhole cover according to claim 7 or 8, characterized in that the sleeve (13 ') is on the upper 16 78783 (78783a.doc) fcfc ·· fcfc ••• .U, praýen | The support edge (6) of the shaped body (1) is supported by an intermediate ring (15) provided as a single Z-shaped part. Manhole cover according to one of Claims 1 to 9, characterized in that the shaped body (1) is provided with at least one protective edge (20, 20 ', 20' ') in the region of its upper side directed towards the running surface. formed by the insert (E). Manhole cover according to one of Claims 1 to 10, characterized in that the shaped body (1) has a bearing part (31) acting as a sealing ring (30) in the region of its upper abutment edge (6). Manhole cover according to one of Claims 1 to 11, characterized in that, on the inner wall of the tubular part (13), respectively. one or more steps (38) and / or a support portion (38 ') for a dirt trap or the like is provided in the sleeve (13'). Manhole cover according to one of Claims 1 to 12, characterized in that the molding (1) provided in the assembly is provided with a sealing ring (31) in all the supporting connecting regions towards the parts of the assembly. Manhole cover according to one of Claims 1 to 13, characterized in that the shaped body (1) forms, in the region of its outer supporting contour (10), a bearing arm (37) directed to the running surface (8). 16 78783 (78783a.doc) • 999 * 9 «· ·« •••. 999 «99 Manhole cover according to one of claims 1 to 14, characterized in that the shaped body (1) has a shaped chamfer (S) extending an annular gap (12) in the region of its support contour (10). Manhole cover according to one of Claims 1 to 15, characterized in that the shaped body (1) bears on the annular body (17) in its built-in position with its support contour (10) from the bottom. Manhole cover according to one of claims 1 to 16, characterized in that the inserts (E) provided in the shaped body form reinforcements in the form of reinforced concrete. Manhole cover according to one of Claims 1 to 17, characterized in that the shaped body (1) has a circumferential contour in the form of an annulus or a multi-angle circumferential contour. Manhole cover according to one of Claims 1 to 18, characterized in that the shaped body (1) has a support contour (10 ') extending over a partial area of the circumferential contour. Manhole cover according to one of Claims 1 to 19, characterized in that the shaped body (1) is variablely connected to the manhole part (4) in height and / or diameter with an adaptation part (4 '). Manhole cover according to one of Claims 1 to 20, characterized in that the tubular part (113, 113 ') associated with the shaped body (1) consists of metal and / or 16 78783 (78783a.doc) 'thο th ~ • ··· * · · · «« ·''* * _Ββ ·· * 9, · ·· ·: · ·% Modified page · ..: and is fastened to the molded body (1) by an adhesive joint (K) and / or a screw connection (115).