JPS6231493Y2 - - Google Patents

Description

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

The floor drainage trap is as shown in Figure 1.
2 is a trap main body, 2 is a riser pipe formed at a constant height h within the trap main body, and the lower end is connected to a drain pipe 3. Reference numeral 4 denotes a bowl body provided to cover the peripheral surface and the upper surface thereof at a certain height above the bottom of the trap body of the riser pipe 2, and 5 a stocker provided on the inner surface of the bowl body 4, with a notch. P is brought into contact with the upper edge of the riser pipe 2, so that a certain distance 〓S, which serves as a drainage passage, is formed as a whole. In addition, 6
7 is an auxiliary pipe placed on the trap body 1, and a strainer.

When the above-mentioned structure is used, the wastewater flows into the trap body through the strainer 7 and the secondary pipe 6, and the flowing wastewater passes through the gap S between the riser pipe 2 and the bowl body 4 to the upper edge m of the riser pipe 2, from which it overflows toward the center and flows out into the drain pipe 3. However, the wastewater f that does not overflow is stored between the trap body 1 and the riser pipe 2, and this acts as a water seal to prevent odors and insects from entering the drain pipe 3. However, if water is not run for a while or if there is a heating system, the water seal evaporates, causing problems such as odors and insects entering the room.

The present invention aims to solve and eliminate the above-mentioned problems, and the present invention will be explained below based on the drawings.

Fig. 2 is a longitudinal cross-sectional view, in which 1 is the trap body, 2 is the riser pipe, 3 is the drain pipe, 6 is the sub pipe, and 7 is the strainer on the top of the sub pipe 6, which is similar to the conventional structure shown in Fig. 1. However, in the present invention, the ceiling surface of the bowl body 4 is formed into a double structure, and the lower plate is made into a circular arc surface Q that curves downward, and the space between it and the upper plate is formed into a double structure. so that air is enclosed in it. In this case, the curvature (radius) r of the circular arc surface Q has a relationship such that D/2<r, where D is the diameter of the riser pipe 2. This is to ensure that the upper edge k of the riser pipe 2 and the outer peripheral surface of the circular arc surface 6 are in constant contact with each other as shown in the drawing when drainage is not being performed. A certain distance is formed between the main body and the bottom for a drainage passage.

The above-mentioned bowl body is made of synthetic resin or thin metal plate, and the structure when made of synthetic resin can also be obtained by blow molding, but initially the outer peripheral wall surface and the arcuate lower ceiling plate were integrally molded. After that, a top plate may be placed on top of the top plate using an adhesive or by ultrasonic bonding. When it is made from a metal plate, it is made by pressing and welding.

The double structure of the ceiling surface of the bowl in this invention is intended to ensure that the bowl itself has a certain level of buoyancy. The floor drainage trap provides a buoyancy of about 30g to 80g to the bowl (made of polyethylene resin).

In the drawings, reference numeral 8 denotes a tray for storing linear objects such as hair, which has a large number of drainage holes 9 formed on its peripheral wall, and a handle 10 on its upper surface. Reference numeral 11 denotes a pedestal that supports the tray at a certain height h' above the ceiling surface of the bowl body 4, and is composed of three to four legs, with the upper end of each leg 11a, 11b... M is integrally fixed to the lower surface of the tray, and the lower end surface is formed with a key claw n that can be bent inward, so that when the bowl body 4 is lifted, the key claw n engages with the bottom surface of the bowl body. In this case, the bowl body 4 is pulled up together.

The present invention is constructed as described above, and when draining water, the wastewater flowing into the trap body 1 is lifted up by buoyancy as shown by the dashed line in the figure, and overflows from the upper edge K of the riser pipe 2. Therefore, it is discharged into the drain pipe 3. When the drainage is finished, it descends and stops when the arcuate surface Q of the lower plate of the bowl ceiling comes into contact with the upper end edge K of the riser pipe, and a valve action is performed at this point.

Therefore, even if the water seal breaks due to the valve action, the present invention can prevent not only bad odors from coming from the drain pipe side, but also the intrusion of snakes, combs, etc. It is extremely hygienic and safe.

For cleaning, the strainer 7 is removed, the tray 8 is held up by the handle 10, and the bowl body 4 and the pedestal 11 can be easily taken out upward. On the other hand, hair, etc. in the tray 8 that has been taken out is disposed of in the garbage, but on the other hand, oil, sand, etc. adhering to the bottom of the trap body 1 are cleaned with running water, and then the trap is loaded again. It is.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the conventional structure, and FIG. 2 is a longitudinal sectional view of the device of the present invention. 1... Trap body, 2... Standpipe, 3...
Drain pipe, 4... Bowl body, 6... Sub pipe, 7... Strainer, 8... Tray, 9... Drain hole, 10...
Handle, 11a, 11b, 11c... pedestal.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The ceiling surface of the bowl body has a double structure with air sealed in it, the lower plate is made into a circular arc surface that curves downward, and the circular arc surface is A floor drainage trap characterized by being configured to come into contact with and away from the upper end edge of a riser pipe within the trap body. (2) Curvature of the circular arc surface (radius r) and diameter D of the riser
A trap for floor drainage according to claim 1, characterized in that D/2<r.