FI58534B - DRAENERINGSBRUNN AV PLAST - Google Patents

Description

Γ # 56Ρη [Β] (11) KULLUTUSJULICAISU, -0534 WA l J ^; UTLÄCGNINGSSICRIFT O O D Ο * ύ (¾) Patrr.-v :: y · ^ '1 - 3 --- 21 ^ ν' (S1) K ».ik? /Ioc.a3 E 02 D 29/12

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(32) (33) (31) Requested «uoMe ·» »- * eg« rd prtoritat (71) (72) Esko Koskinen, Lammastie 12, 01710 Vantaa 71,

Jukka Ignatius, Meritullinkatu 17, 00170 Helsinki 17,

Suomi-Finland (FI) (5 ^) Plastic drainage well - Dräneringsbrunn av plast

Drainage piping systems use drainage wells at appropriate intervals, the main purpose of which is to collect sludge to prevent clogging of the drainage piping. Known secret ditches are usually made of superimposed concrete rings. Such drains have the following disadvantages. Making the connection hole required for a drain pipe in the wall of a concrete ring is a cumbersome and labor-intensive procedure. Concrete tires are heavy, making them difficult and labor-intensive to transport and install. Storage also requires a large space. Also known are manhole inspection wells made of plastic, which consist of a cylindrical central part and parts connected to both ends by annular flanges. The manufacture of such wells is cumbersome and / or requires expensive tools, in addition to which the finished wells require a lot of space for storage and transport.

The object of the invention is to provide an improved drainage well which does not have said drawbacks.

This object is achieved according to the invention in that the drainage well consists of two trough-shaped parts which are fastened opposite their flanges along the edges to form a cylindrical vessel, preferably with a bottom. Such plastic gutters can be stacked on top of each other in a small space and are light to carry.

58534 2

The holes required for connection to the drainage piping can easily be made in the plastic wall and special hole cutting devices can be developed for this purpose. The assembly of the well is done quickly by placing and fastening the edge flanges of the gutter parts together.

For assembling the parts of the well, the edges of the gutters preferably have protruding fastening flanges with holes for screw fastening.

According to a preferred embodiment of the invention, the well consists of two mutually similar trough-like parts, in which case only one mold is required and, given a certain flexibility of the plastic material, such parts can be stacked on top of each other so that they partially intersect.

In the following, an embodiment of the invention will be described with reference to the accompanying drawing, in which Figure 1 shows a drainage well according to the invention in a perspective view.

Fig. 2 shows a half of the drain well according to Fig. 1 seen from the side, and Fig. 3 shows a section taken along the line III-III in Fig. 2.

The drain well shown in the drawing consists of two identical trough-like halves 1, each of which has protruding, opposed mounting flanges 2 with holes for screw fastening. The walls of the well have annular reinforcement grooves or protrusions 3. When the well is installed, one or more holes 5 are made at the desired points and at the desired height, to which the drain pipes are connected. The bottom 4 of the well is made convex when viewed from the outside, whereby the concave inner surface of the bottom facilitates the removal of sludge from the well.

The invention is, of course, not limited to the embodiment shown in the drawings, but the details of the construction can vary in many 3,58534 ways. Thus, for example, the reinforcing rings 3 can be implemented, for example, in the form of a cross groove and the well can be made of e.g.

Claims (3)

4,58534 Plastic drainage well, characterized in that it consists of two trough-shaped parts (1) fastened opposite their flanges (2) along the edges to form a cylindrical vessel, preferably provided with a bottom (4). Drainage well according to Claim 1, characterized in that the edges of the troughs (1) have projecting fastening flanges (2) which rotate the troughs in one piece and which have holes for fastening. Sewer well according to Claim 1 or 2, characterized in that the well consists of two mutually similar trough-like parts (1) which also form the bottom of the drain well.