JPH041212Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a strainer connection device for a relay drain installed in a balcony or the like of a high-rise residential building to drain water from the balcony.

<Prior art> As shown in Fig. 1, each balcony a, etc.
A relay drain 1 consisting of a strainer 5 having a plurality of water passage holes 4 formed on the outer periphery mounted on a saucer 2 having a pipe portion 3 protruding from the lower surface is attached to each floor wall so as to coincide at the top and bottom. As a result, drainage holes 7 are formed that penetrate each balcony a from above and below. Then, the lower end of the long drain pipe c is inserted into the strainer 5a (5b) of the drain 1 on the lower floor side, and then supported by the gripping piece b, and the upper end is further fixed to the drain 1 on the upper floor side. Rainwater collected from the strainer 5 of the drain 1 on the upper floor sequentially flows through the drain pipe c to the drain 1 on the lower floor.

By the way, the strainer 5b of the relay drain 1
As shown in FIG.
Three screw holes 10 are formed, and a pressing screw 11 is inserted into each.
After inserting the lower end of the drain pipe c into the strainer 5b, each pressing screw 11 is screwed in, and its tip is pressed against the circumferential surface of the drain pipe c to hold it. .

<Problems to be Solved by the Invention> However, with such a configuration, it is necessary to tighten the three pressing screws 11, resulting in poor workability.Moreover, the central position of the drain pipe c cannot be maintained by the pressing screws 11. There were drawbacks such as the drain pipe c being biased within the strainer 5 due to the degree of protrusion of the tip of the strainer 11.

The object of the present invention is to provide a strainer connection device for a relay drain that does not have the above-mentioned drawbacks.

<Means for solving the problem> The present invention consists of a saucer and a tubular strainer that is fixed on the saucer and into which a drain pipe is inserted from above. In a relay drain for forming a drainage hole that vertically penetrates a floor wall, a plurality of press-contact ridges are formed on the inner surface of the upper end portion of the strainer, circumscribing the drain pipe, and further, the height is approximately the same as that of the press-contact protuberances. A screw hole is formed at the position, and a pressing screw is screwed into the screw hole, the tip of which presses against the peripheral surface of the drain pipe.

<Function> By threading the pressing screw, the drain pipe comes into close contact with the pressure protrusion side within the strainer, and is held by the press protrusion and the press screw. Further, as long as the diameter of the drain pipe is a predetermined value, the drain pipe can always be held at the center within the strainer.

<Example> An example of the present invention will be described with reference to FIGS. 1 and 2.

Referring to FIG. 2, two pressure contact ridges 20 are formed on the inner surface of the upper end of the strainer 5a, and a screw hole 21 is further formed at the upper end at approximately the same height as the pressure contact ridges 20. Further, the pressure contact ridges 20 and the screw holes 21 are spaced at equal angular intervals. A pressing screw 22 is screwed into the screw hole 21 from the outside.

For the installation procedure, loosen the pressing screw 22, insert the drain pipe c into the strainer 5a on the lower floor, and then insert the upper end of the drain pipe c as shown in FIG. A male screw 6 formed on the periphery is screwed into a female screw formed on the inner peripheral surface of the pipe portion 3 of the saucer 2, and the drain pipe c is held by the gripping piece b.

Next, the pressing screw 22 is screwed. As a result, the drain pipe c is pressed against the tip of the pressing screw 22 and comes into pressure contact with the pressing protrusion 20 side. With this configuration, the lower end of the drain pipe c is fixed by the end of the screw hole 21 and the tip of the pressure contact ridge 20.

In the embodiment described above, the drain pipe c is supported at three points by two pressing ridges 20 and one pressing screw 22, and its peripheral surface can always be brought into close contact with each of the supporting points.

Incidentally, two or more of the press-contact protuberances 20 may be formed. Furthermore, the desired effect can be achieved even if the angular intervals are not necessarily equal.

<Effects of the invention> As described above, the present invention forms a plurality of pressing ridges 20 and one screw hole 21 on the inner surface of the strainer 5a, and further screws the pressing screw 22 into the screw hole 21, and the tip of the pressing screw 22 is screwed into the screw hole 21. Since the drain pipe c is pressed against the circumferential surface of the drain pipe c and fixed by the end of the pressure bump 20 and the tip of the pressing screw 22, the fixing operation of the drain pipe c is performed by turning one pressing screw 22. It can be applied only to dynamic operations and is easy to install, and has excellent effects such as being able to reliably position the drain pipe c at the center of the strainer 5a.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the coupling device, FIG. 2 is a perspective view of a strainer 5a according to the present invention, and FIG. 3 is a perspective view of a conventional strainer 5b. DESCRIPTION OF SYMBOLS 1...Relay drain, 2...Saucer, 3...Pipe section, 5a...Strainer, 20...Pressure bump, 2
1...screw hole, 22...pressing screw, c...drain pipe.

Claims (1)

[Claims for Utility Model Registration] 1. Consisting of a saucer and a tubular strainer fixed on the saucer into which a drain pipe is inserted from above, the strainer is attached to the floor wall of a balcony and is used to extend the floor wall up and down. In a relay drain for forming a penetrating drainage hole, a plurality of press-contact ridges are formed on the inner surface of the upper end of the strainer to circumscribe the drain pipe, and further,
A strainer connection device for a relay drain, characterized in that a screw hole is formed at approximately the same height as the pressure contact ridge, and a pressure screw whose tip is pressed against the circumferential surface of a drain pipe is screwed into the screw hole. 2. The utility model according to claim 1, characterized in that two pressure contact ridges are provided, and the screw hole and the two pressure contact ridges are arranged at substantially equal angular intervals. Relay drain strainer connection device.