WO2003071038A1

WO2003071038A1 - Run-off outlet and strainer

Info

Publication number: WO2003071038A1
Application number: PCT/PL2003/000010
Authority: WO
Inventors: Roman Arseniuk
Original assignee: Roman Arseniuk
Priority date: 2002-02-20
Filing date: 2003-02-19
Publication date: 2003-08-28
Also published as: AU2003215975A1; WO2003071038B1; PL352340A1

Abstract

A run-off outlet being a part of the drain or drain trap mounted in the holes of the sanitary devices, having a socket designed most often for closure, which is a part of the run-off neck bushing, characterised in that it has a space in the run-off bushing (1), under the socket (2), and support for a removable volumetric stariner (4), which is not joined with closure (3) and whose height is at least 2 cm. In such a way, in the described run-off outlet there is mounted a volumetric strainer independent of the closure. Over the space designed for the strainer, there could be placed a removable separtor (5). The strainer could have a grip facilitating its removal. The strainer should have a design matching the run-off outlet. The strainer could have a grip enabling its fastening in the run-off bush.

Description

Run-off outlet and strainer

The object of the present invention is run-off outlet being a part of drain or drain trap, mounted in the hole of sanitary devices like e.g. drainboard sinks, baths, wash-basins, shower trays, bidets. The object of the present invention is also a sedimentary strainer placed in the run-off outlet.

There are known solutions of run-off outlets, which trap contamination from water flow off to sewage system. That filtration could be realized by: 1. an openwork, fixed bottom, 2. a removable flat strainer placed under the plug, 3. a strainer connected with a closure, in which case, the strainer could be placed over the closure surface or could be placed under the closure and mounted to a pin connected with the closure, 4. a strainer inserted into an outlet socket permanently or periodically, after plug removal. Some of the ^* above presented solutions, due to a small filtration surface cannot efficiently filter the emptied water. Others, because of bad access to the strainer are rarely used in practice, therefore special tools and chemicals are periodically used for opening a passage in the drain traps and sewage pipes.

According to the present invention, a run-off outlet being a part of the drain or drain trap mounted in the hole of the sanitary devices, having a socket designed most often for closure, which is a part of run-off neck bush, characterised in that it has a space in the runoff bush, under the socket, and support for a removable volumetric strainer that is not joined with the closure and whose height is at least 2 cm. Over the space designed for the strainer, there could be placed a removable separator.

According to the present invention, the run-off outlet being a part of the drain or drain trap mounted in the hole of the sanitary devices, having a socket designed most often for closure, which is a part of the run-off neck bush, characterised in that it has - located in the run-off bush, under the socket - a removable volumetric strainer that is not joined with the closure and whose height is at least 2 cm. Over the space designed for the strainer, there could be placed a removable separator.

According to the present invention, the volumetric strainer placed in the run-off bush of the run-off outlet below the socket is characterised in that is independent of the closure and its height is at least 2 cm. The strainer could have a grip facilitating its removal from the run-off bush. The strainer should have a design matching that of the run-off outlet, in which it is embedded. The strainer could have a grip enabling its fastening in the run-off bush.

Inventions will be explained in the figures presenting examples of the run-off outlets with strainers. Figures 1, 2 and 3 present the run-off outlets connected by a screw with the residual part of the drain or drain trap. Figures 4, 5, 6, 1 and 8 present run-off outlets connected with the residual part of the drain or drain trap by screw joint on their surfaces.

In the hitherto known run-off outlets connected with the residual part of the drain or drain trap by a screw, the outlet bottom is placed just under the socket. In the run-off outlet, according to the present invention, which is presented in fig.l, fig.2 and fig.3, the outlet bottom is remote from the socket. Most often, that "distance" involves necessity to extend the run-off bushing. This "distance" allows for the mounting of a high volumetric depositing strainer between the outlet socket and outlet bottom. Fig.l presents the run-off outlet with strainer 4, whose filtering surface, consisting of a bottom surface and four side walls is larger than the inside cross-section surface of the run-off bushing 1 in the socket 2, and therefore is larger than the filtering surface of a flat strainer, if it were placed in an identical socket. The example strainer has a grip enabling its suspension on the run-off bushing wall and therefore is adjusted to that outlet design. That suspension is possible owing to the fact that the run-off bushing contraction forms a support, and the upper strainer part is wideed and creates a catch. The filtering part of the strainer has a polygonal cross-section, in this case rectangular. This, together with the round cross-section of the run-off bushing facilitates efflux of strained water. The height of the strainer is close to the socket diameter, so it is also close to the strainer upper surface diameter. The rubber plug is a closure 3, which, after insertion to the socket, rests on the strainer's upper surface, so the strainer is matched to the run-off outlet design.

In the execution example as in fig.2, an openwork run-off bushing 1 has the shape of an inverted cut-off cone. The total height of strainer 4, with filtering a sidewall is greater than that of ther run-off bushing diameter in the socket 2. The strainer cross-section is a circle and decreases downward. The strainer's shape therefore matches the run-off bushing. The strainer has a grip, which creates an internal vertical pin, widening upward. The support for the strainer is the run-off bottom distant from the socket. Between closure 3, which is a rubber plug and the strainer is placed a removable separator 5. The separator protects the strainer - especially a fragile disposable strainer - from damage. The separator also provides support for the plug embedded in the socket and prevents it from tilting. The strainer for long-lasting use, and therefore for repeated cleaning, should be easily cleanable, and so its filtration surface should be easily accessible. The disposable strainer may have a complicated filtering surface e.g. it may have deep internal cavities increasing that surface.

Fig.3 presents an example of the run-off outlet connected with a drain or drain-trap by a tube screw passing through the centre of the outlet bottom distant from the socket. In the tube screw, there is a shifting pin of closure 3 raised directly or remotely. With the closure, there is a circumferentially connected strainer, placed over it, which preliminarily filters the water. In the terminal lower position of the closure, the closure seal is in contact with the side surface of the socket 2. The cross-sections of the both the inside of the lower part of the run-off bushing 1, and the entire strainer 4 are ring-shaped. The wall of the runoff bushing has large outlet holes. The outer sidewall of the strainer is openwork. The filtering surface of the strainer is larger than the inside cross-section surface of the run-off bushing in the socket.

The following figures illustrate examples of the run-off outlets screwed to the residual part of the drain or drain trap by threads placed on the surface. In hitherto solutions of such a kind of outlets with a bottom, the outlet bottom is placed directly under the socket, which precludes the insertion of a high volumetric strainer between the socket and the bottom. Fig.4, 5 and 6 present the run-off outlets, in which the outlet bottom is remote from the socket of the run-off bushing. According to fig.4, the cross-section of the middle part of run-off bushing 1 inside is hexagonal with rounded vertexes. Such a bushing shape facilitates its screwing down and simultaneously creates spaces facilitating water draining from cylindrical strainer 4 wall, which is matched in diameter to the run-off bushing dimensions. The upper, outer part of the run-off bushing is threaded. Under the socket 2 on the round shelf inside the bushing, removable separator 5 is placed. The separator has a round cylindrical protrusion from the bottom. That protrusion is adjusted to the dimensions of the run-off bushing in such a way that the separator cannot move freely. The separator maintains the strainer in the proper position and guides drained water into the strainer's inside. The support for the strainer is the openwork run-off bushing bottom. A widening of the upper part of the strainer to the inside creates a grip facilitating its removal. The strainer height is larger than half of the its cross-section diameter.

In the run-off outlet, according to fig.5, the outside part of the run-off bushing 1, is threaded. Drain-traps with thus made outlets are mounted to ceramic washbasins and bidets. In the run-off bushing, below the socket 2 there is placed strainer 4, which has a transverse grip in its upper part, and a bellowing, corrugated openwork sidewall. The strainer rests on the bottom of the run-off bushing, which has been reduced to a round collar. It iss obvious that the collar may have interruptions. The strainer height matches the run-off design in such a way that the plug inserted into the socket is supported by the outlet grip of the strainer, which stands on the bottom.

Fig.6 presents a run-off outlet with remotely lifted closure. The closure 3 is a metal plug and the plug seal is a round elastic ring. The guide of the plug pin is a suitably made hole in the outlet bottom. The guide secures proper plug falling. The plug pin is ended with a screw adjusting the plug lifting range. Presence of the pin forces the usage of the strainer without a centre. In that case, the cross-section of the strainer 4 is a circle ring. The strainer has vertical edges matched with the run-off bushing 1 walls, thanks to that, the strainer does not move and does not rub on the plug, and simultaneously, there is a space created, to facilitate drainage of filtered water from the strainer sidewall, not only through its bottom. The socket 2 of the outlet is a little half-open. The filtering surface of the strainer sidewall exceeds considerably the surface of each strainer inside cross-section and the strainer bottom surface. The strainer is independent of the closure, because it does not have catches for connecting with the closure, in not joined with the closure, can stay in the run-off outlet after closure removal, rests in the run-off outlet when the closure is mounted.

Among run-off outlets available on the market, that are screwed into the residual part of the drain or drain trap by threads placed on their surfaces there are also such outlets that indeed have a space to place a strainer in, but do not give the possibility to mount it conveniently into the run-off bushing. Those outlets do not provide convenient support for the strainer. Such a possibility is given by the solution presented in fig.7 and fig.8.

Fig.7 presents an example of the run-off outlet with strainer 4 suspended on the round protruding contraction, in the upper part of the run-off bushing 1, which provides the support. The strainer in its upper part is equipped with a round collar creating a catch. The strainer is matched to the run-off bushing, because the upper part of the strainer is in contact with the run-off bushing surface, which causes the strainer to be placed centrally and adequately tightly. The filtering part of the strainer is changeable, in this case it is a changeable, openwork sack, mounted by a rubber band.

Fig.8 presents an example of a run-off outlet designed especially for shower trays. The short bushing 1 wall is outside threaded. The rubber plug 3 with overflow tube is the closure. The outlet socket 2 is straight, causing the closure to rest in it securely. Underneath the socket, the outlet bushing contracts and creates a support, on which strainer 4 equipped with a proper catch, can be suspended. The upper part of the strainer creates that catch. The bushing contraction has holes that facilitate screwing in of the outlet to drain or drain trap. The strainer height is at least 2 cm and is larger than half of the strainer upper part diameter. In its upper part, the strainer has a cross grip, which additionally prevents children from putting their feet into the outlet bushing. The strainer inserted into run-off bushing hangs down below the edge of the run-off bushing.

All figures present only the design of the run-off bushing. The necessity of proper execution of the other parts of the drain or drain trap is obvious, in order to create a logical structure of the whole drain or drain trap. The other parts of the drain or drain trap do not always have to differ from designs occurring presently on the market, and sometimes required changes will be not large.

Claims

1. Run-off outlet being a part of the drain or drain trap mounted in the holes of the sanitary devices, having a socket designed most often for closure, which is a part of run-off neck bushing, characterised in that it has a space in the run-off bush 1, under the socket 2, and support for a removable volumetric strainer 4, which is not joined with closure 3, and whose height is at least 2 cm.

2. Run-off outlet being a part of the drain or drain trap mounted in the holes of the sanitary devices, having a socket designed most often for closure, which is a part of the run-off neck bushing, characterised in that it has in the run-off bushing 1, underneath the socket 2, and removable, a volumetric strainer 4, whose height is at least 2 cm and which is not joined with closure 3.

3. Run-off outlet according to claims 1 and 2, characterised in that over the space designed for the strainer 4 there is placed a removable separator 5.

4. Spatial strainer placed in the run-off bushing of the run-off outlet below the socket characterised in that it is independent of the closure 3, and its height is at least 2 cm.

5. The spatial strainer according to claim 4 characterised in that it has a grip facilitating its removal from the run-off bushing 1.

6. The volumetric strainer according to claims 4 and 5 characterised in that it matches the design of the run-off outlet, in which it is embedded.

7. The spatial strainer according to claim 6 characterised in that it has a grip facilitating its mounting in the run-off bushing 1.