WO2008028627A1

WO2008028627A1 - Covering arrangement for an underground buried tank system for rainwater and wastewater

Info

Publication number: WO2008028627A1
Application number: PCT/EP2007/007710
Authority: WO
Inventors: Wolfgang Voss; Olaf Koops; Marco Rumberg
Original assignee: Rewatec Gmbh
Priority date: 2006-09-07
Filing date: 2007-09-01
Publication date: 2008-03-13
Also published as: DE202006014082U1

Abstract

The invention relates to a covering arrangement (1) for an underground buried tank system for rainwater and wastewater, comprising a base cover (3), wherein the base cover (3) has an integrated withdrawal opening (2) with a covering element (4), wherein the covering arrangement is noteworthy in that it comprises at least one filling stub (5) for withdrawing water, said stub being situated below the covering plane formed by the covering element (4).

Description

Covering device for an underground rain and waste water underground tank system

The present invention relates to a cover device for an underground rain and Abwassererdtanksystem with a base cover.

For reasons of space savings and safety and hygiene tanks for storing liquids are often designed as underground tanks that are embedded in the ground and can be connected, for example via shaft systems, such as so-called dome shafts, with the environment. These underground storage tank systems usually have openings through which a filling or emptying is to be made possible or which are provided for the purpose of maintenance. The openings must therefore be large enough overall, so that all these tasks can be carried out without much difficulty. To cover so-called dome shafts and to cover tank connection points covering devices are required. These manhole covers have the task to protect dome shafts and connection points with the associated devices such as fittings, removal, filling or entry-level devices from weather conditions and to secure them against third parties. Since such manhole covers are usually installed at ground level, they should be accessible and also passable. At the same time they should ensure that the underlying devices are easily accessible for maintenance, filling and removal purposes. To prevent accidents, unauthorized removal of the lid and to ensure dimensional stability of the lid to the ground, the cover is secured with fasteners to the shaft or at the sampling point and is usually made of heavy, sustainable materials such as cast iron. Fasteners used are securing elements, such as screwed connections, which ensure a firm connection with the shaft system. However, the problem here is that the shaft and the connection points should continue to be accessible at all times. In practice, one-piece circular lids are known for covering removal devices of underground tanks buried in the ground. If you want to access the below ground faucets or on a connected to the tank shaft, these lids can be lifted and deposited altogether upwards from the opening. So that the covering devices can also be lifted by an average user, these covers must be made of lightweight materials, for example of plastic. To secure and secure the lid to the ground here are usually screws arranged as securing means on the periphery of the lid, which are fixed to a recessed into the ground shaft frame. However, a disadvantage of such a covering device is that many plastics have only a low compressive strength and load-bearing capacity and therefore can only be loaded to a limited extent, which in turn results in severely restricted trafficability with heavier vehicles. In particular, the use of such a lid assembly is unsuitable when the quickest possible and uncomplicated access to water sampling devices that are under the arrangement to be guaranteed. This may be the case, for example, when a garden irrigation system is to be connected to a rainwater collection tank embedded in the ground, which is only accessible via a manhole or underground water distribution points for water abstraction. Since tools are required for removal of the security elements for any maintenance and removal purposes, such removal is laborious and time consuming. Furthermore, the dimensions of such cover devices are relatively large and therefore difficult to handle, despite a design in plastic.

In order to obtain easily accessible openings, manhole covers - especially those for underground storage tanks - have been developed which comprise a cover which is mounted on a support frame when closed. In order to open the lid, this is articulated with a hinge at the top of the dome shaft so that the lid can be opened. The lid is made of durable material, such as cast iron. Although such devices simplify the opening and closing of the dome shaft, it must be raised in this arrangement, a made of stable and thus heavy material lid. From the document DE 20 2006 009 922 Ul a device for sealing a manhole is known. The device comprises a manhole cover for covering the manhole. The cavity below the manhole cover is accessible from above, without removing the manhole cover by the manhole cover has a smaller compared to the manhole cover access cover. Access to the cavity is thus facilitated. However, the device described is not suitable as a covering device for rain and waste water tank systems, since a removal of water, for example by means of a watering can is not possible. For rainwater and wastewater tank systems, it is common to provide a separate and from the base cover locally remote removal point, however, is difficult to maintain and on the other hand additional earthworks during assembly / disassembly requires.

The object of the present invention is therefore to provide a load-bearing covering device for underground rain and Abwassererdtanksysteme available, which ensures easy installation and ensures easy use of stored in the tank system water.

This object is achieved in a covering device for an underground rain and Abwassererdtanksystem described above in that the cover comprises at least one filling nozzle for water removal, which is located below the cover plane formed by the cover. Characterized in that the covering comprises a filling, it is ensured that any consumer systems such as garden irrigation systems, watering cans or the like can be quickly and easily coupled to the water connection point. The inventive construction further ensures that a large-scale entry into the underground tank is still ensured, namely, when the entire cover device is removed. However, those actions that are frequently performed - for example, a removal of water - can be done by removing a small and therefore easy to handle cover member. Thus, if only access to the lying below the device fittings, so the heavy and relatively large base cover, which is attached to avoid accidents on the ground, thanks to the integrated removal opening no longer be solved by its anchorage. Rather enough it is only to lift the smaller cover from the opening. A time-consuming detachment of any screws that fix the base cover on the support frame, can therefore be omitted.

In an advantageous embodiment, the cover is designed such that it is connected in the lifted state with the base cover. Due to the permanent connection of the cover with the base cover of the risk that the lid is lost, for example, by theft or by laying effectively prevented.

In a further expedient embodiment, the cover is articulated eccentrically on the base cover and pivotally formed about a rotation axis. If access is to be made to the devices located under the base cover, the cover is lifted vertically upwards and pivoted to the side in the raised state. This arrangement has the advantage that the lifted cover does not have to be laboriously deposited on the side, but - supported by the linkage - remain in the raised state. If the integrated removal opening is to be closed again, no renewed lifting of the heavy cover element is required; the element is merely pivoted back into the covering position and lowered into the removal opening.

In a further advantageous embodiment, the covering device according to the invention comprises at least one securing element for securing the base cover to the underground rainwater and Abwassererdtank- and / or shaft system. Particularly advantageous is the use of an outwardly to the periphery pivoting securing bracket, which ensures a particularly fast and easy release of the base cover from the support frame. If the base cover is to be removed from the ground in order, for example, to ensure entry into the dome shaft for maintenance purposes or a larger access opening to a water connection point, the cover element is initially opened and the safety bracket is then swung inward in a particularly simple manner. In another favorable embodiment, the covering device comprises at least one rain outlet element. This avoids that collects in wet weather water on the cover and thus leads to an increased risk of slipping.

Further preferred and advantageous features emerge from the subclaims and the description.

Particularly advantageous embodiments of the inventive covering device for an underground rain and Abwassererdtank- and / or shaft system will be explained below with the aid of the drawings. Showing:

FIG. 1 shows a perspective view of a cross section through an embodiment of the cover device according to the invention, wherein the cover element is shown in the open state;

Figure 2 is a plan view of the embodiment shown in Figure 1 in the open state;

FIG. 3 shows a perspective view of an embodiment according to the invention in the closed state;

FIG. 4 shows a perspective view of a cross section through the embodiment of the covering device shown in FIG. 3 in the closed state;

Figure 5: a perspective view of an inventive embodiment in the open state.

The present covering device 1 according to the invention is particularly suitable for reliably covering outlet openings or connecting shafts of an underground rain and waste water underground tank and / or shaft system. This covering device 1 comprises a removal opening 2 integrated in a base cover 3, which can be covered by a cover element 4. Under a rain and Abwassererdtanksystem is an underground stored, largely closed container system for collecting, storing and storing liquids, preferably rainwater and wastewater to understand. Such a system may consist of a container or of a plurality of interconnected containers and assume any dimensions. The tank system further comprises at least one connection shaft which connects the tank to the environment, such as, for example, dome access ducts and / or ducts which are suitable for receiving water extraction connection points (so-called empty pipes) and form the duct system. Such shafts may have at their openings over a floor level arranged support frame which serves as a receiving element and as a bearing of the covering device 1 according to the invention. The water supply connection points may have subterranean water distributors which are connected to the container system by means of the conduits. As a result, a tank system is made available that allows a simple removal of water compared to conventional rainwater and Abwassererdtanks due to the arrangement of the cover 1 on the connection shaft. At the same time a high load capacity of the connection shaft is ensured.

The cover 4 and the base cover 3 may be made of any conventional material, such as cast iron, aluminum or plastic or a combination of these materials. Cover 4 and base cover 3 may consist of the same or different materials. If plastic is chosen as the material, a lightweight and therefore particularly easy to handle embodiment is provided. Due to the low weight, the handling of such a cover device 1, in particular the opening of the integrated removal opening 2 and the lifting of the base cover 3 is particularly simple and therefore to accomplish by weaker persons. Furthermore, it is advantageous if the base cover 3 and the cover 4 are made of cast iron, since this represents a particularly stable embodiment.

As removal opening 2, any opening 2 can be integrated with any dimensions in the base cover 3; the base area of the opening 2 can be any desired assume, for example, circular, square, rectangular, oval or even asymmetrical shapes. The removal opening 2 can be positioned at any location on the base cover 3. However, a centrally arranged circular cutout, which occupies approximately 1/3 of the base cover 3, by means of which a sufficiently large recess is made available, by means of which a user is enabled to conveniently place the under the Cover device 1 lying fittings 7 to use. Furthermore, the size of the removal opening 2 in relation to the thickness of the base cover 3 is adjusted so that the incidence of light is minimal, so that photosensitive storage goods, such as rainwater, are not affected in their quality. In addition, due to the adapted size of the integrated removal opening 2 in the base cover 3, an accident risk, such as a falling in of small children and the entry of persons, is avoided.

The removal opening 2 is associated with a corresponding diameter cover member 4, which fits snugly into the removal opening 2. To connect now about garden irrigation systems to the rainwater storage system, therefore, only an opening of the lightweight cover 4 is required, the heavy base cover 3 is secured to the ground, making handling of the larger and unwieldy base cover 3 is avoided. Furthermore, the fittings 7 are optimally protected against the effects of weather due to the precise insertion of the cover 4 in the opening 2. As a cover 4, each element can be used, which is suitable to close the corresponding Entnahmöffhung 2. The cover element 4 can be assigned to the base cover 3 loosely or connected to it, for example via a lifting, folding, pivoting device or via a combination of these devices. It is advantageous if the cover 4 can be lifted out of the base cover 3 at least partially.

Figure 1 shows a particularly advantageous embodiment of the covering device 1 according to the invention for a rainwater and Abwassererdtank- and / or shaft system. This cover device 1 is made of plastic and comprises a base cover 3 in which an integrated removal opening 2 is recessed in the center. The removal opening 2 is associated with a cover 4, which is shown in the raised and pivoted to the side state. The cover 4 is eccentric via a pin 11 hinged to the base cover 3 and pivotally formed about the rotation axis D. In the closed state, the cover 4 is supported by a semicircular bearing plate 13 which is adapted to the Entnahmöffhung 2 and arranged below the plane of the surface of the base cover 3. Further, the cover 4 rests on a collar at the upper end of the integrated Entnahmöffhung 2 and is secured by the collar supporting the ribs 17 and the downwardly directed projection 18, which fits precisely into the integrated Entnahmöffhung 2, against slipping. The downward projection 18 is presently designed as a steep truncated cone. If the cover 4 is to be inserted into the Entnahmeöffhung 2 to close this, the Abdeckelemeηt 4, which rests in the pivoted state to the side on the base cover 3 at least partially, slightly raised, pivoted about the rotation axis D via the removal opening 2 and lowered , The bolt 11, which is received in the bearing plate 13 by a Aufhahrnebohrung is lowered during the closing operation down through the receiving bore.

In order to ensure a firm recording and storage of the covering device 1 according to the invention on the support frame of a connection shaft, the base cover 3 is formed such that it has at its outer peripheral edge a vertically downwardly projecting collar-like projection 10, which in a notch of the support frame of Connecting shaft is inserted. A peripheral support portion 12, which follows the vertical projection 10 inwardly, serves the surface support of the cover on a projection of the support frame.

The covering device 1 is also suitable for use on geometrically differently shaped receptacles on the shaft ends. Depending on the type of recording, the outer circumferential circumferential collar-like projection 10 on the underside or the peripheral support section of the support frame 12 serve as a support surface. The adjustment takes place depending on the type of recording by the outer diameter of the cover 1, ie by the vertical collar-like projection 10 or by the lateral surface of the downwardly extending projection 18 on the underside of the cover. 1 To secure the base cover 3 to the support frame of a connection shaft, two pivotally mounted securing clips 9 are arranged on opposite sides between the peripheral support section 12 and the integrated removal opening 2 in recesses of the downwardly directed projection 18. These safety brackets 9 are pivotally fixed to the base cover 3. The securing brackets 9 are designed in such a way that they can comprise the projection of the support frame, on which the peripheral support section 12 is mounted flat, from below. They are designed so that they produce a rotation by turning a positive fit even with differently shaped recordings. Particularly advantageous is the use of at least one safety bolt rotatable about a vertical axis with a suitable tool (eg Torx screwdriver), which in the closed state is positively connected to the shaft edge. However, any securing means can be used as securing elements, such as countersunk screws on the periphery of the base cover, which engage in the support frame of the dome or water connection shaft.

The base cover 3 rain outlet elements 6 are also assigned. Particularly advantageous is a Profϊlstruktur with raised surface portions, which directs the rainwater in the non-raised surface parts. These elevations 16 cause a rapid drainage of the water and improved stability of the base cover 3. In addition, the base cover 3 may have in its basic geometry a slight slope from its center to the periphery. This serves both the drainage of rainwater - and the expiring of the slightly curved cover 4 - as well as the stabilization. Also favorable is a base cover 3, which has additional rain drainage elements 6, such as, for example, star-shaped profile recesses widening outwards, which accelerate the removal of water from the cover device into the adjacent ground. Furthermore, the profile structure simultaneously provides a non-slip surface of the covering device 1. Furthermore, any rain drain elements 6 are conceivable as rain drain elements 6, for example channels, grooves, indentations and recesses in any desired arrangement. The rain drainage elements 6 are in the present case formed from elevations 16 that are curved downwards outwards, which are approximately trapezoidal in plan view, which extend in a star-shaped, uniformly distributed manner from the integrated removal opening 2 and thus also stabilize. tion of the base cover 3 serve. Another function of the trapezoidal elevations 16 is to compensate for the height difference to the overlying cover 4 and thus prevent tripping hazards and damage caused by kicks. The trapezoidal elevations 16 are internally stabilized by toothed knobs 8, which also serve as slip protection. By gearing effects of emanating from the collar radially arranged ribs 17 with the trapezoidal elevations 16, the stability of the base cover 3 is further optimized. The ribs 17 can be used to derive the force acting on the cover device 1 compressive forces to the periphery of the base cover 3 out. Another stabilizing element may be narrow conical protrusions extending from the underside of the cover to the trapezoidal elevations 16 and supporting them.

On the downwardly directed projection 18 on the underside of the base cover 3, a connection bridge 14 is fastened by means of screw elements 15. The connection bridge 14 centrally clamps the removal opening 2 and takes two filling nozzles 5, by means of which a water can be drawn off, and a water connection point 7 feeding the filling nozzles 5. The connection bridge 14 can be permanently fixed or detachably arranged on the lower side of the base cover 3 via any fastening means. In a removable training, it is possible to replace the connecting bridge 14 with the filler neck 5 in case of any defect. Adapters of conventional garden irrigation systems can be coupled to the filling nozzles 5 for the removal of water.

Furthermore, the entire covering device 1 according to the invention is designed so that it can be walked on, so that it is not destroyed or impaired in its function when walking by pedestrians. Such walkability may be achieved by certain choice of materials, such as solid plastic or cast iron, or by a combination with special structural features such as braces inserted into the base lid. This offers the advantage that the covering device 1 does not need to be specially secured against pedestrians.

Furthermore, the covering device 1 can be adapted in such a way that it is also passable nondestructively and thus suitable for traffic areas with vehicle traffic. As a result, no precautions must be taken that any vehicles do not drive over the cover. The adaptation also in this case consists of an embodiment of any suitable materials such as plastic or cast iron or by choosing a suitable structure, such as the thickness of the elements.

FIG. 2 shows a plan view of the embodiment shown in FIG. The two formed on the connection bridge 14 within the integrated removal opening 2 filling nozzle 5 are arranged centrally. The faster rainwater drainage serving 16 surveys with toothed nub structure have a weak broadening to the outside. The arranged in the recesses between the elevations 16 ribs 17 have a length of about one third of the radius of the base cover 3.

FIG. 3 shows a perspective view of the device 1 according to the invention according to FIG. 1, in which the cover element 4 is inserted into the integrated removal opening 2. It can be seen that the upper edge of the cover 4 terminates approximately flush with the height of the adjacent elevations 16.

Figure 4 shows the cover device 1 shown in Figure 3 in a closed arrangement in a perspective view as a cross section. The bolt 11, via which the cover 4 is eccentrically articulated about the axis of rotation D to the base cover 3, is recessed in the bearing plate 13, so that the cover 4 is supported by the bearing surface of the bearing plate 13. The cover 4 also has two recesses 19, which are formed as recessed grips for the hands and thus ensure a simplified lifting and inserting the cover 4 from the integrated removal opening 2 and into it. In addition, the cover 4 has a horizontally over the base cover 3 projecting edge, which provides a lateral rain-tight closure for the removal opening 2.

FIG. 5 shows a perspective view of the embodiment according to FIG. 1, in which the cover element 4 is lifted out of the integrated removal opening 2, pivoted eccentrically to the side about the rotation axis D and mounted on the base cover 3. The cover 4 can be further protected against complete withdrawal by a locking screw.

Claims

claims

A covering device (1) for an underground rain and waste water underground tank system comprising a base cover (3), wherein the base cover (3) has an integrated removal opening (2) with a cover element (4), by means of a cover element, the covering device (1) comprises at least one filling nozzle (5) for removing water, which is located below the covering plane formed by the covering element (4).

2. Covering device according to claim 1, characterized in that the cover element (4) from the base cover (3) is at least partially lifted out.

3. Covering device according to claim 2, characterized in that the cover element (4) is designed such that it is connected in the lifted state with the base cover (3).

4. Covering device according to claim 2 or 3, characterized in that the cover element (4) is articulated eccentrically on the base cover (3) and pivotable about an axis of rotation (D) is formed.

5. Covering device according to one of claims 1 to 4, characterized in that the covering device (1) comprises at least one securing element for securing the base cover (3) on the rainwater and Abwassererdtank- and / or shaft system.

6. Covering device according to one of claims 1 to 5, characterized in that the covering device (1) comprises at least one rain outlet element (6).

7. Cover device according to one of claims 1 to 6, characterized in that the covering device (1) is designed and adapted such that they

Strength values for non-destructive traffic has.

8. Covering device according to one of claims 1 to 7, characterized in that the covering device (1) is designed such that it can be assigned to a Einstiegsdom a rain and Abwassererdtanks.

9. Covering device according to one of claims 1 to 8, characterized in that the covering device (1) is provided as a cover for a water distributor of a rain and Abwassererdtanksystems consisting of at least one rainwater and / or Abwassererdtank, lines and at least one water distributor ,