JPH06173324A - Toilet bowl - Google Patents

Abstract

PURPOSE:To secure water for water sealing in a basin, by a method wherein the inside of a trap for the title bowl is made in the state of atmospheric pressure by automatically opening an air feed valve connected to the trap when water is poured into a drain pipe at the upper floor and the inside of the trap becomes in the state of a negative pressure. CONSTITUTION:In the case where water is poured into a drain pipe for the bowl 1 provided on the upper floor of a multistory building, such as a multiple dwelling house, a negative pressure is caused in a trap 4. As prevention against the fact that water W for water sealing is sucked into the drain pipe by the negative pressure at that time, a vent pipe 6 is allowed to communicate with the wall face of the trap 4, by connection, and an air feed valve 7 is provided at the top end of the vent pipe 6. The air feed valve 7 is automatically opened by the negative pressure and the vent pipe 6 is allowed to communicate with outside air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved toilet bowl.

[0002]

2. Description of the Related Art Conventionally, in toilet bowls installed in, for example, condominiums, when water flows from the upper floor to the drain pipe, a negative pressure may occur in the trap of the toilet bowl connected to the drain pipe. When a negative pressure is generated in the trap, the water sealing water stored on the upper surface of the bowl of the toilet bowl may be pulled by the negative pressure and flow toward the drain pipe side. In some cases, it did not remain in the toilet bowl.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned problems of the prior art, and an object thereof is to provide a toilet bowl capable of ensuring good water-sealing in a high-rise building or the like. The gist of the invention is to connect to the trap an air supply valve capable of automatically opening when the inside of the trap becomes a negative pressure and introducing the atmosphere into the trap.

[0004]

[Operation] When water flows from the upper floor to the drain pipe in a high-rise building, if negative pressure is generated in the trap of the toilet bowl, this negative pressure automatically opens the air supply valve connected to the trap, and the air is trapped in the trap. Is introduced to bring the inside of the trap to the atmospheric pressure, and it is possible to favorably prevent the water-sealing water from being drawn into the drain pipe, and to ensure the water-sealing water on the pot well.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional configuration diagram of the toilet bowl. The toilet body 1 is a flush type toilet bowl, not a siphon type bowl, in which a water sealing water W is stored in the bowl portion 2 and above the bowl portion 2. A rim 3 is formed, and a trap portion 4 is formed below the pot portion 2 so as to communicate with each other, and a lower end portion of the trap portion 4 serves as a drain port 5 that is connected to a drain pipe (not shown).

In this example, a ventilation pipe 6 is connected to the wall surface of the trap portion 4, and an air supply valve 7 is provided at the tip of the ventilation pipe 6. The air supply valve 7 is formed so as to automatically open when a negative pressure is reached so that the ventilation pipe 6 and the outside air can communicate with each other.

In the toilet having such a structure, when the toilet is installed in the toilet of a high-rise building or the like, when water is drained from the upper floors of the high-rise building to the drain pipe, the inside of the trap 4 becomes negative pressure. Conventionally, the water sealing water W is drained by the negative pressure 5
There was a case where the water sealing water W was lost because of being pulled to the side, but in this example, when a negative pressure is generated in the trap portion 4, the air supply valve 7 automatically opens and the atmosphere is passed through the ventilation pipe 6 to release the atmosphere. Introduced into the trap 4 to bring the inside of the trap section 4 to atmospheric pressure,
The water-sealed water W is prevented from being pulled out to the drain port 5 side, and the water-sealed water W is well retained in the bowl 2. In addition, when the trap portion 4 has a positive pressure, the air supply valve 7
Since it is closed, it can be used well as a flush toilet.

[0008]

EFFECTS OF THE INVENTION The toilet bowl of the present invention has an air supply valve that automatically opens when the inside of the trap becomes a negative pressure and can introduce the atmosphere into the trap. When water flows from the drainage pipe to the drain pipe, if the inside of the trap of the toilet becomes negative pressure, this negative pressure automatically opens the air supply valve connected to the trap and introduces the atmosphere into the trap to cause atmospheric pressure inside the trap. Therefore, it has an effect that the water-sealed water can be well prevented from being drawn into the drain pipe, and the water-sealed water can be well secured on the pot.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional configuration diagram of a flush toilet bowl.

[Explanation of symbols]

 1 Toilet body 2 Bowl part 4 Trap part 5 Drainage port 6 Vent pipe 7 Air supply valve W Water seal water

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushi Ito 5-1-1, Koiemoto-cho, Tokoname City, Aichi Prefecture Inside Inax Co., Ltd.

Claims (1)

[Claims] 1. A toilet bowl characterized in that an air supply valve capable of automatically opening when the inside of the trap becomes a negative pressure and introducing the atmosphere into the trap is connected to the trap.