JP3084422B2 - Toilet drainage method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method for draining a siphon toilet.

[0002]

2. Description of the Related Art Conventionally, in a siphon type toilet, a water reservoir is provided at a drain port side of a trap, and water is constantly stored in the water reservoir. To realize the continuous state of water storage in the water storage section at an early stage, to achieve the siphon start early, there is a toilet with a structure that increases drainage efficiency, in such a toilet with such a structure,
Since the siphon starts early when the jet water is jetted, it can perform a good drainage function, but on the other hand, the siphon is poorly cut, the drainage from the drain increases, and water is sealed on the pot side. There was a problem that sometimes did not remain.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned conventional problems, and provides a drainage method capable of eliminating the problem of the siphon being cut off and reliably leaving water seal water. The gist of the invention is that the gist is provided with a pot portion for storing water sealing water, a trap having a water storage portion that communicates with the pot portion and can store water at an outlet side, and jets jet water into the trap. In a toilet bowl which communicates the water seal water with the water stored in the water storage section and drains the water by a siphon action, an air supply hole is provided upstream of the water storage section of the trap, and a vent valve connected to the air supply hole is connected to the siphon action. Is to open after the occurrence of the above, and to introduce air into the trap.

[0004]

[Function] When the jet water is jetted, the water seal water and the water in the water storage section communicate with each other to generate a siphon effect and drain water.
After the occurrence of the siphon action, the air is introduced into the trap by opening the ventilation valve connected to the air supply hole on the upstream side of the water storage section, and the atmosphere eliminates the vacuum state in the trap and the siphon phenomenon disappears. In addition, it is possible to prevent excess washing water from being discharged from the drain port, so that an appropriate amount of water sealing water is reliably left on the pot side.

[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 of the present embodiment. A bowl 2 for storing water seal water W1 is formed in a toilet body 1, and a rim 11 is formed above the bowl 2. I have.
Further, a trap 3 is formed in a communicating manner behind the bowl portion 2, and a weir 6 rising upward is formed on a drain port 7 side at a lower end of the trap 3. A water storage unit 5 capable of storing the water W2 is integrally formed.

In this embodiment, an air supply hole 8 is formed in the side wall of the trap 3 above the water storage section 5, and a ventilation valve 10 is connected to the air supply hole 8 via a pipe 9. A jet hole 4 for jetting jet water toward the trap 3 is formed at the bottom of the bowl 2.

In such a structure, in a normal state, as shown in FIG. 1, a water seal water W1 is stored in the pot portion 2, and a water store W2 is stored in the water storage portion 5. . In this state, the jet water is trapped from the jet hole 4 by the user operating the flash valve or the like.
As shown in FIG. 2, the water seal water W1 is pushed out toward the trap 3 with the jet water jetting, and the pushed water seal water W1 and the water storage W2 of the water storage unit 5 communicate with each other. As a result, the inside of the trap 3 becomes full, and the inside of the trap 3 becomes negative pressure to generate a siphon action. As a result, the washing water is drained well from the drain port 7. 1 and 2, the ventilation valve 10 is in a closed state.

As described above, the water storage section 5 is provided below the trap 3.
In the toilet of the type formed with water, the communication between the water seal water W1 and the water storage W2 is realized early, and the siphon starts up early and the drainage efficiency increases, but the siphon action is strong. On the contrary, in some cases, a large amount of washing water is discharged from the drain port 7 and the water sealing water W1 of the pot 2 is lost, but in this example, after the siphon starts up,
The vent valve 10 is controlled to be opened via a control circuit (not shown). When the vent valve 10 is opened, air is introduced into the trap 3 from the air supply hole 8 as shown in FIG. The siphon inside is cut off, the inside of the trap 3 becomes atmospheric pressure, and it is prevented that excess water is drawn out from the drain port 7. As shown in FIG. At the same time, an appropriate amount of water W2 is also left in the water storage unit 5. The rim 11
From the washing water flows down to the pot 2 side, and good water sealing water W1
Water volume is secured.

As described above, when the inside of the trap 3 becomes full at the time of drainage, by performing control to open the vent valve 10 after a short time, drainage can be satisfactorily drained by the siphon action, and the siphon can be cut off by introducing air. As a result, it is possible to satisfactorily eliminate the problem of the conventional siphon being cut, and the water seal water W1 can be reliably left on the pot 2.

[0010]

According to the present invention, there is provided a pot portion for storing water sealing water, and a trap having a water storage portion communicating with the pot portion and capable of storing water at an outlet side, and jetting water into the trap to jet the jet water. In a toilet bowl which communicates water sealed water with water stored in the water storage section and drains the water by a siphon action, an air supply hole is provided upstream of the water storage section of the trap, and a ventilation valve connected to the air supply hole is provided with a ventilation valve for the siphon action. Since the air was introduced into the trap by controlling the opening after the occurrence, the ventilation valve was opened after the siphon was started, and the air was introduced into the trap through the air supply hole. It is possible to cut water and leave water sealing water in the pot without draining excess water from the drain outlet. .

[Brief description of the drawings]

FIG. 1 is a cross-sectional configuration diagram of a toilet bowl before jet water is jetted.

FIG. 2 is a cross-sectional configuration diagram when jet water is jetted.

FIG. 3 is a sectional view showing a state in which a ventilation valve is opened.

FIG. 4 is a cross-sectional configuration diagram when drainage is completed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toilet bowl main body 2 Pot part 3 Trap 4 Jet hole 5 Water storage part 6 Weir 7 Drain port 8 Air supply hole 9 Pipe 10 Vent valve W1 Water seal water W2 Water storage

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jun Ito 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Inax Corporation (56) References JP-A-1-287333 (JP, A) (58) Survey Field (Int.Cl. ⁷ , DB name) E03D 11/02

Claims (1)

(57) [Claims] 1. A trap having a pot portion for storing water sealing water and a water storage portion communicating with the pot portion and capable of storing water at an outlet side,
In a toilet bowl which jets jet water into the trap to communicate the water sealing water and the water in the water storage portion and drains the water by siphon action, an air supply hole is provided on the upstream side of the water storage portion of the trap, and the air supply hole is provided in the air supply hole. A method of draining a toilet bowl, characterized in that the communicating vent valve is controlled to open after the occurrence of the siphon action to introduce air into the trap.