DE202019107155U1 - Sieve-shaped cover for the inlet area of a drain pipe - Google Patents

Abstract

Sieve-shaped cover for the inlet area of a drainage pipe, in particular a rainwater drainage pipe, characterized by a tubular body (4) which can be inserted at least in some areas into the inlet area (2) of the drainage pipe (1) and which consists of a rolled flat mesh mat blank (6) with overlapping edge areas (6a, 6b) is formed, and by a cover cap (5) pushed onto the tubular body.

Description

The invention relates to a sieve-shaped cover for the inlet area of a drainage pipe, in particular a rainwater drainage pipe.

A common problem with roof drainage is that leaves or other objects can get into the drainage pipes. This applies to normal downpipes as well as horizontal drainage pipes on flat roofs with parapets. This can lead to blockages in the drainage pipes with corresponding detrimental consequences. It is therefore necessary to regularly clean flat roofs or gutters as well as the drainage pipes.

In order to avoid or at least minimize such costly cleaning work, various solutions have become known. On the one hand, there are complete gutter covers, intended as leaf stoppers, which have to be attached along the entire length of the gutter, which results in a relatively complex assembly, and on the other hand, sieve-shaped covers are known for the inlet area of drainage pipes.

A widespread sieve-shaped cover is out DE 29 06 816 C2 known. This inlet strainer for gutters, downpipes or the like consists of a pipe socket-like approach having, spherical basket, which is formed from approximately parallel to the downpipe axis running wire loops, which are clamped in the cage apex between an inner and an outer plate, of which the has a holding tongues encompassing the wire, the basket being composed of individual pieces of wire with free ends which engage between the platelets and are clasped by the tongues.

Such an inlet strainer is inserted into the inlet area of a drainage pipe and only holds in this with its pipe socket-like extension made of wire loops which, depending on the drainage pipe diameter, are bent more or less far when inserted. In the event of improper assembly, the wire loops bend differently, which means that the inlet strainer is not firmly installed and does not close the inlet area correctly or even falls out of the inlet area of the drain pipe if the drain pipe runs horizontally. In addition, it cannot be avoided that individual wire loops break off due to corrosion during prolonged use, as a result of which the inlet screen is on the one hand no longer held securely and on the other hand no longer fully fulfills its screen function. Foliage leaves or the like can then get into the drainage pipe due to wind and rainwater and clog it.

Another disadvantage of the known inlet strainer is its complex manufacture and assembly, since the basket consists of individual pieces of wire which engage between the plates and have to be fastened between them.

The object of the invention is to create a screen-shaped cover that is simple to manufacture and easy to assemble and that ensures a reliable screen function even over a longer period of time.

This object is achieved according to the invention with a cover of the type described at the outset by a tubular body that can be inserted at least in some areas into the inlet area of the drain pipe, which is formed from a rolled flat lattice mat blank with overlapping edge areas, and by a cover cap plugged onto the tubular body.

The sieve-shaped cover thus consists of two elements, namely a flat lattice mat blank and a cover cap. Before assembly, the wire mesh blank is rolled up into a tubular body so that it can be inserted sufficiently deep into the inlet area of a drainage pipe. This reliably ensures that the cover remains in the inlet area of the drain pipe, even if the gutter or cover is cleaned with a high-pressure cleaner. Subsequently or beforehand, a suitable cover cap is placed on the tubular body formed in this way. Since the rolled up lattice mat blank has the tendency to roll apart again, it rests under tension on the inlet area of the drainage pipe as well as on the cover cap and is thus held in a dimensionally stable and secure manner. The assembly is obviously simple, the production is likewise, since a conventional lattice mat blank can be used, which is cut to a suitable size. A grid mat, for example, which is used in the area of tree protection, can be used as a cut to size.

It is preferably provided that the lattice mat blank is made of metal. The tubular body is then held stable and, in addition, particularly securely in the inlet area of the drain pipe, since the lattice mat blank has the tendency to expand outwards.

In order to ensure a particularly long durability of the cover, it is preferably provided that the lattice mat blank consists of metal wires with a plastic coating.

Alternatively, the mesh mat blank can also consist of plastic.

The cover cap is preferably made of metal and / or plastic. When the two materials are combined, a metallic core with a plastic coating is provided.

In one embodiment, it can be provided that the cover cap is attached to the tubular body. For this purpose, the cover cap can have, for example, form-fitting elements that engage in the openings of the tubular body.

Furthermore, it can advantageously be provided that the overlapping edge regions of the tubular body are fastened to one another. For this purpose, e.g. cable tie-like fastening elements can be provided.

The invention also relates to a kit for producing a sieve-shaped cover as described above. This has a flat lattice mat blank and a cover cap or several cover caps with different diameters. Such a kit can on the one hand be transported and stored in a space-saving manner, on the other hand it offers the possibility, if it has several cover caps with different diameters, to create a sieve-shaped cover for different pipe diameters.

• 1 in perspektivischer Darstellung eine in einen Einlaufbereich eines Abflussrohres eingesteckte, siebförmige Abdeckung und
• 2 eine Draufsicht auf einen Gittermattenzuschnitt.

The invention is explained in more detail below with reference to the drawings. These show in

• 1 in a perspective illustration a sieve-shaped cover inserted into an inlet area of a drain pipe and
• 2 a top view of a lattice mat blank.

In 1 a drain pipe is shown in certain areas and denoted by 1. This drainpipe 1 can be, for example, a rainwater drainage pipe that can be arranged as desired, ie both vertically as a downpipe and, for example, horizontally in the area of an attic. The drainpipe 1 has an inlet area 2 with an enlarged diameter compared to the other pipe cross-section in the exemplary embodiment, but it can also be a pipe with an unchanged cross-section over its length. When the drain pipe 1 is a rainwater downpipe, it is attached accordingly to a gutter, not shown.

To prevent leaves or other small parts from entering the drainpipe 1 to prevent is a screen-shaped cover according to the invention 3 intended. The sieve-shaped cover 3 has two components, namely a tubular body 4th and a cover cap 5 . The tubular body 4th is made from a customary cut to size 6th formed, which is rolled up so that what is not shown in the drawing, its edge areas 6a and 6b Overlap slightly when rolled up to ensure a closed tubular body 4th arises.

A lattice mat blank is sufficient 6th a single predetermined size to make the cover suitable for sewer pipes of different diameters. Depending on the diameter of the drain pipe 1 is the cut of the wire mesh 6th more or less rolled up, ie the overlap area of the overlapping edge areas 6a , 6b is then more or less wide.

The cover cap 5 has an inner diameter which is approximately the inner diameter of the inlet area 2 of the drain pipe 1 corresponds to. The cover cap 5 is then correspondingly from above onto the tubular body 4th attached and the screen-shaped cover formed in this way 3 in the inlet area 2 of the drain pipe 1 plugged in sufficiently deep.

Because the tubular body 4th has the tendency to unroll again, it is under tension both in the inlet area 2 of the drain pipe 1 as well as on the inside of the cover cap 5 and is therefore held securely at both ends.

In addition, it can be provided, which is not shown in the drawing, that the overlapping edge areas 6a and 6b are attached to one another, for example with cable ties or similar connecting means.

In addition, it can also be provided that the cover cap 5 at the top of the tubular body 4th is attached. The cover cap 5 have positive-locking elements on the inside or there can also be bores in the cover cap 5 be provided in order to be able to insert connecting elements. The lattice mat blank 6th consists preferably of metal wires with a plastic coating. It can, for example, be a cut to size 6th act, which is usually used as tree protection. The mesh size is chosen so that leaves or other particles do not pass through the tubular body 4th through into the drainage pipe 1 can penetrate.

As there are different pipe diameters for drain pipes 1 there, a kit is preferably also provided which has a flat lattice mat blank 4th and preferably several cover caps 5 having different diameters. The customer can then use that cover cap 5 Select whose inside diameter matches the inside diameter of the drain pipe 1 corresponds and from it a matching sieve-shaped cover 1 form.

Of course, the invention is not limited to the illustrated embodiment. Further refinements are possible without departing from the basic idea. This is basically how the grid mat can be cut 6th also consist only of wire or only of plastic, the cover cap 5 can also consist of metal or plastic or metal with a plastic coating.

List of reference symbols

1

Drainpipe

2

Inlet area

3

cover

4th

Tubular body

5

Cover cap

6th

Lattice mat cutting

6a, 6b

Border areas

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 2906816 C2 [0004]

Claims (8)

Sieve-shaped cover for the inlet area of a drainage pipe, in particular a rainwater drainage pipe, characterized by a tubular body (4) which can be inserted at least in some areas into the inlet area (2) of the drainage pipe (1) and which consists of a rolled up flat lattice mat blank (6) with overlapping edge areas (6a, 6b) is formed, and by a cover cap (5) pushed onto the tubular body. Cover after Claim 1 , characterized in that the lattice mat blank (6) consists of metal. Cover after Claim 2 , characterized in that the lattice mat blank (6) consists of metal wires with a plastic coating. Cover after Claim 1 , characterized in that the lattice mat blank (6) consists of plastic. Cover according to one or more of the Claims 1 to 4th , characterized in that the cap (5) consists of metal and / or plastic. Cover according to one or more of the Claims 1 to 5 , characterized in that the cap (5) is attached to the tubular body (4). Cover according to one or more of the Claims 1 to 6th , characterized in that the overlapping edge areas (6a, 6b) of the tubular body (4) are attached to one another. Kit for the production of a screen-shaped cover according to one or more of the Claims 1 to 7th , characterized by a flat lattice mat blank (6) and a cover cap (5) or several cover caps with different diameters.

Images