JPS59389Y2 - drain - Google Patents

Description

[Detailed description of the invention] This invention relates to the structure of a non-combustible drain equipped with a drain trap, and is characterized by making it possible to easily and reliably fix the riser pipe and connect it to the drain pipe. It is something to do.

In recent years, non-combustible drainage I-wrap has been widely used for sinks, etc., but although its outer shell is generally obtained by deep drawing from a non-corrosive metal plate such as stainless steel, the whole of it, especially its lower end, The joints formed at the joints are thin, making it difficult to cut the threads in the iron parts, and connecting the riser pipes and drain pipes to the joints becomes a complicated mechanism, and improvements are strongly requested. This is what was being done.

The structure of the present invention devised in view of these circumstances will be explained according to the embodiment shown in the drawings. Reference numeral 1 is a main body of a drain port with a trap mechanism installed in its lower half, and its outer mantle 1'
For example, a stainless steel plate is deep-drawn, and a joint portion 2 is integrally extended and opened at the lower end thereof, and an appropriate number of through holes 2'' are formed through the bottom step surface 2'.

Further, 3 is a collar 3 having a through hole 3'' that communicates with the through hole 2''.
4 is a thick backing made of an elastic material such as rubber, and has a through hole a into which the joint 2 and the riser 3 of the outer @ 1' can be fitted. A through hole 8 communicating with each of the through holes 2// and 3// is formed around the through hole 8, and a groove 4' into which the collar 3' of the riser pipe 3 fits is formed on the inner surface. It is something.

Furthermore, 5 is a tightening ring attached to the lower surface of the backing 4, 6 is a tapered backing made of a relatively hard elastic material that can be fitted into the drain pipe 11, and 7 is a threaded portion 7' on the inner surface.
It is a bag nut with.

The tightening ring 5 is provided with a through hole that can be fitted into the drain pipe 11, and a bolt hole 8' that communicates with each of the through holes 2'', 3'', and 8 is bored on its upper surface. The above-mentioned cap nut 7 is attached to its outer peripheral surface.
A thread portion 5' is provided which can be freely screwed into the tapered backing 6, and the inner lower edge is formed into a reverse tapered surface 5'' corresponding to the sloped surface of the tapered backing 6.

In addition, 9 in the figure indicates each of the above-mentioned through holes 2'', 3'', 8 and bolt hole 8.
10 is an upper plate that is fitted onto the riser pipe 3, and 12 is a garbage storage cylinder.

To construct the drainage outlet of the present invention, which has the structure of each part as described above, first, the concave groove 4' of the backing 4 is fitted into the collar part 3' of the riser pipe 3, and the riser pipe 3 is connected to the joint part 2 of the jacket 1'. After fitting into the opening of the backing 4, the tightening ring 5 is attached to the lower surface of the backing 4, and the through hole 2'' of each of these members is inserted.

3'', 8 and Pole l-7L8' and bolt 9
The riser pipe 3 and the tightening ring 5 are fixed to the drain main body 1 by tightening them at the .

Next, attach the bag nut 7 and the tapered backing 6 in advance.
The tightening ring 5 previously attached to the drain main body 1 is fitted and placed on the drain pipe 11 fitted with the taper backing 6 and tightened with the cap nut 7 through the taper backing. Since it is guided by the reverse tapered surface 5'' of the tightening ring and accommodated in the radial direction, and the drain pipe 11 is strongly held from that surface, the drain port and the drain pipe are tightly connected.

As described above, according to this product, the riser pipe, which was conventionally connected to the joint of the main body by welding or the like, can be easily fixed with the tightening ring 5, and the connection between the joint and the drain pipe can also be made easily. Extremely easy by tightening nut 7.
In addition to being easy to perform, since the above-mentioned members are tightly joined by the backings 4 and 6, tremendous practical benefits can be obtained, such as completely preventing water leakage at the joint.

[Brief explanation of drawings]

Figure 1 is a partially cutaway front view of the proposed drainage outlet;
The figure is a cross-sectional view of each central part showing the connecting members of the drain port according to the present invention arranged in order, and FIG. 3 is a perspective view of the riser pipe. In addition, in the diagram 1...Drain port, 2...Joint part, 3...Rise pipe, 4...Backing, 5... Tightening ring, 6... Taper backing, 7... Cap nut, 8...
Bolt hole, 9... Bolt.

Claims (1)

[Scope of utility model registration request] At the drain outlet of a sink or the like that has a trap inside, a backing into which the collar of the riser pipe is fitted is joined to the bottom surface of the lower end of the mantle of the trap, and a tightening ring is attached to the bottom surface of the backing. In addition, each of these members is integrally fixed to the bottom surface with bolts, and its tightening ring is fitted to the upper end of the drain pipe, and can be tightened with a cap nut through a tapered backing. Drainage port.