JPS636290Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a drainage trap.

The drainage trap is as shown in Figure 1, where 1 is the trap body, and 2 is a certain height h within the trap body.
The lower end of the riser pipe is connected to the drain pipe 3. Reference numeral 4 denotes a cover provided to cover the circumferential surface and the upper surface thereof at a certain height above the bottom of the trap body of the riser pipe 2, and 5 is a stocker provided on the inner surface of the cover 4, with a notch. p is brought into contact with the upper end edge of the riser pipe 2, so that a constant gap s is formed overall.

The trap main body 1 is embedded integrally with slab concrete during construction, and an auxiliary pipe 6 is provided between the main body and the upper surface of the floor while adjusting its height as appropriate, and A strainer 7 is fitted to the holder.

In use with the above configuration, the waste water flows into the trap main body 1 through the strainer 7 and the auxiliary pipe 6. m, overflows inward from the center and flows out into the drain pipe 3. By the way, waste water f that does not overflow is stored between the trap body 1 and the riser pipe 2, and this is due to the action of a water seal that prevents odor and insects from entering from inside the drain pipe 3. However, if the water is not run for a while or there is heating equipment, the water seal evaporates, causing problems such as bad odors and insects entering the room.

The present invention is intended to solve and eliminate the above-mentioned problems, and the structure of the present invention will be explained below based on FIG. 2 (longitudinal sectional view).

1' is the trap body, but unlike the conventional trap, there is no riser pipe provided in the center. Instead, in the present invention, a bottomed double pipe 8 with a valve part formed by a float is provided in the center from the upper strainer side in a suspended state. A step protrusion with two upper and lower steps m and n is formed on the side, and the upper step m supports the strainer 7, while the lower step n supports the bottomed double pipe 8.

The bottomed double pipe 8 is formed into a dish shape with a wide diameter at the top so that the waste water from the strainer 7 can easily flow in, and at a certain height position of the cylindrical inner pipe 8a. An inwardly protruding ring seat 9 is provided to form a valve portion, and a float 10 made of hollow or foamed resin or cork is retained therein.

11a, 11b, 11c, . . . are through holes (or slits) formed at a position below the ring seat 9 so as to communicate with the outer tube 8b. The outer tube 8b has a bottom and a space 12 of a certain width s is formed between the outer tube 8b and the inner tube 8a at the through-hole portion.
b is formed to have a constant length upward, that is, to have an upright dimension h such that the tube end k is disposed at a position above the ring seat 9.

FIG. 3 is an explanatory diagram of the operation, and A shows a state in which drainage is being performed. As seen in this figure, the waste water flowing in from the strainer 7 floats the float 10, passes through the through holes 11a, 11b, 11c, etc., overflows from the upper edge k of the outer tube 8b, enters the trap body 1, and drains the water. It will be discharged from the pipe 3.

B is sealed with water after the drainage is stopped.
Indicates the state in which an action is performed. Initially, the float 10 floats to the position indicated by the dashed-dotted line, but once the sealing water evaporates, the valve part is closed at the position indicated by the solid line, so even if the water runs out, bad odors or insects may enter the room. This does not cause any problems. Therefore, it is extremely hygienic and safe.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the conventional structure, FIG. 2 is a longitudinal sectional view of the device of the present invention, and FIGS. 3A and 3B are explanatory views of the operation. 1, 1'...trap body, 2... riser pipe,
3... Drain pipe, 6... Sub pipe, 7... Strainer,
8...Double pipe, 8a...Inner pipe, 8b...Outer pipe, 9
... Ring seat, 10 ... Float, 11a, 11b,
11c...Through hole.

Claims (1)

[Scope of utility model registration request] A bottomed double pipe is suspended from the upper strainer side of the trap body, and a valve portion with a float is formed at a constant height position inside the center of the inner pipe,
In addition to drilling a through hole below the valve part to communicate with the outer pipe, the outer pipe is set to a certain height so that the edge of the pipe is located above the valve part, so that drainage from the inner pipe is prevented. A drainage trap characterized in that it is configured to overflow and flow into the trap body.