[...].

[0001] [...] The present invention relates to a.

[0002] Such Deep building pits are well known and are, for example, from the state of the type, for example, tubes or cables used in particular for the laying of wires to the existing pipes and/or cables from the surface to reach. This wells are usually installed vertically into the ground, i.e. in the earth and are surrounded at least substantially from the bottom after installation. These are made from concrete [...] State of the kind obtained by the, whereby these parts are accordingly very difficult and cumbersome.

[0003] It was therefore the problem of the present invention, to make available a [...] , the has not the disadvantages of the prior art.

[0004] The problem is solved with a [...] , whose side walls are made of a plastic material.

[0005] This [...] is much more easily and without the aid of the construction workers can of an excavator or the like be mounted. It was very surprising and not to be expected by someone skilled in the art that it is possible, to provide a [...] , whose side walls are made of a plastic material and the forces acting on a by the surrounding soil as the both [...] also by loading from above, for example by a truck, withstands [...] is on the the,.

[0006] In the plastic material it can act to pass any common plastic material is the person skilled in the art. Preferably, the plastic material is PVC and/or a reinforced, however, in particular glass fibre reinforced, plastic. The side wall can be constructed in a number of layers one-or. The side wall is of tubular design and can have an arbitrary cross-section. This cross-section is rectangular, however is preferred. The in an arbitrary length and a large cross-section with differently [...] can be made available. The side wall can be cylindrical, rectangular, square or be provided at least in sections of a truncated cone. Preferably, the side wall is composed of several annular segments [...] of the, before, during or after the installation in the earth connected to each other, preferably are welded with each other. This the annular segments are connected to one another integrally and/or watertight.

[0007] According to a preferred embodiment of the according to the invention at one end this [...] , preferably at its upper end, a cover on is prevented to the control unit, in particular that a person or an object in the falls [...]. Preferably, this cover has a frame on, the particularly form preferably-, force and/or integrally connected with the side wall of the is low belly pit. Preferably, runs around the entire periphery of the side wall around the frame. Preferably, the frame is made of metal, in particular bent sheet metal made.

[0008] Preferably, a framework for a cover provided on the frame. Preferably is connected by welding with the frame the frame. This framework is seated preferably on an end face of the side wall on both a bearing as well and is constitute a lateral guide for the cover. The frame consists of a substantially L-shaped profile is preferred. Preferably, a fuse provided on the cover, the cover secures to the frame and/or to prevent it from lifting the reversibly on the side wall. Preferably, what matters in the fuse about a rotation preventer, with a tool, for example a key, for example is inserted through the grate, can be actuated. This safety device preferably acts together with the frame and engages behind the latter in the secured position, so that said cover no longer can be lifted off. Preferably, [...] points more of these fuses on the according to the invention, particularly preferably opposite each other. In another preferred embodiment the cover is a grate. This grate is preferably with a plate, preferably a chequer plate , covered, on the grate, in turn is fastened with a fastening the particularly preferably, so that they cannot move relative to the grate and/or can not be lifted off.

[0009] Preferably, the opposite end of the side wall on which the cover [...] on a closed bottom. This ground is preferably also made of plastic and particularly preferably designed flat. The soil is with the side wall, preferably by welding, connected. Preferably, this composite structure is waterproof.

[0010] the invention is explained on the basis of the only Fig. Below 1. These remarks are merely exemplary and not a [...] restrict the general.

[0011] Fig. [...] 1 1 shows the according to the invention, comprising a side wall 2 is made of plastic. In the present case the side wall is cylindrically provided. Each segment is tubular and has in particular a circular cross-section on. Preferably, the side wall consists of several, here two, tubular segments, 10 are connected with each other with a horizontal welding seam. This welding seam can be affixed before, during or after the [...] has been incorporated into the earth. The pit is provided in the the [...] is filled with soil after the installation of, for example, earth and/or sand. It was very surprising and not to be expected by someone skilled in the art that it is possible, to provide a [...] , whose side walls are made of a plastic material and the forces acting on a by the surrounding soil as the both [...] also withstands by loading from above. Preferably, [...] has at its upper end a cover on the, the rests on the end face of the side walls. This cover has a frame, in particular a circumferential, here cylindrical frame 4 on, the preferably force-, form-fitting and/or integrally connected with the side wall is. A frame 5 is provided at this frame 4, here welded is made here of a L-shaped profile the and which extends along the entire end face of the side wall. This framework 5 constitutes the cover of the bearing as well as a lateral guide constitute both a [...]. Preferably, 6 5 a grizzly fitted into the frame, the by means of at least one, here two, fuse (s) is secured to the frame 7. This fuses 7 are with a tool, in particular a special key, operable, reversibly with the underside of the frame that a cam in particular by rotation and/or the side wall is engageable. This the grate 6 is reversibly protected against lifting off. In this case the grate is 8 with a plate 6, here a chequer plate , covered, by a mounting 9, here a nut combination , lattice east is attached to the 6.

[0012] Preferably, the opposite end of the side wall on which the cover [...] 11 on a closed bottom. This ground 11 is preferably also made of plastic and particularly preferably designed flat. Soil with the side wall 11 is connected, preferably by welding.

[0013]

1 [...]

2 side wall

4 frame

5 frame

6 Grating

7 securing of the grate to the frame

8 plate

9 fixing of the plate to the grate

10 welding seam

11 bottom, the closed bottom