JPH05311724A - Siphon and jet type toilet bowl - Google Patents

Abstract

PURPOSE:To prevent a nozzle from interrupting the movement of dirt, by a method wherein a recess part having a size matching with the shape of the nozzle is formed at the lower part of a bowl part so as to open toward a trap drain way and the nozzle is buried in the recess part so that the water-jetting opening part thereof can be flush with the wall surface of the bowl part. CONSTITUTION:A recess part 10 pointing to an inlet 5 for a trap drain way 4 and having a size matching with the shape of a nozzle 11, is opening-formed at the bottom of a bowl part 3. The nozzle 11 pointing to a bent part 4a on the trap drain way 4 is buried in the recess part 10 so that a water-jetting opening part 12 can be flush with wall surface of the bowl part 3 and is watertightly installed. Therefore, the nozzle 11 does not interrupt the movement of dirt. In this way, the title bowl can be effectively flushed with a small amount of water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a siphon jet type toilet bowl.

[0002]

2. Description of the Related Art FIG. 3 is a vertical sectional view of a conventional siphon jet type toilet bowl.

The washing water is jetted from the nozzle 103 having the jet injection hole 102 provided at the bottom of the bowl portion 101 of the siphon jet toilet 100 toward the rising pipe portion 105 of the trap drainage channel 104, and the washing water is used. A siphon action is generated in the trap drainage channel 104.

[0004] Then, the toilet bowl is cleaned by transporting sewage and dirt in the bowl portion 101 due to the occurrence of this siphon action.

[0005]

However, since the nozzle provided with the jet injection hole usually slightly protrudes from the wall surface of the bowl portion, the nozzle becomes a resistance when the filth is conveyed, and an extra amount of washing water is required for filth conveyance.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a siphon jet type toilet bowl capable of reliably producing a siphon action and efficiently cleaning the toilet bowl with a small amount of water. And

[0007]

In order to solve the above-mentioned problems, the siphon jet type toilet bowl according to the present invention has a recessed portion having a size corresponding to the shape of the nozzle opened at the bottom of the bowl portion toward the trap drainage channel. A nozzle was formed in this recess, and the nozzle was directed toward the inner part of the trap drainage channel so that its jet injection hole was flush with the wall surface of the bowl.

[0008]

The nozzle does not become a resistance to the dirt on the bottom of the bowl, so that the siphon action is efficiently generated in the trap drainage path with a small amount of water to convey the dirt and wastewater in the bowl.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a siphon jet type toilet bowl according to the present invention.

A siphon jet type toilet (hereinafter, simply referred to as a toilet) 1 has a bowl portion 3 partitioned by a partition wall 2 and a trap drainage channel 4. Trap drain 4 is bowl 3
The inflow port 5 opened in the lower part of the rear wall and the outflow port 6 opened in the bottom of the substantially central part of the toilet 1 are bent and connected in a substantially inverted U shape, and are bent from the bent part 4a of the trap drainage channel 4. The discharge passage 4b on the downstream side is formed in a substantially straight pipe shape. Then, in the vicinity of the outlet port 6 which is the lower end portion thereof, a narrowed portion 4c is provided in which the pipe wall is reduced in diameter.

A rim water passage 8 is formed in an annular shape on the rim portion 7 at the upper edge of the bowl portion 3 so as to project inward of the bowl portion 3, and a rim water spray hole 9 is formed on the bottom surface of the rim water passage 8. The bowl portion 3 is obliquely opened at appropriate intervals.

In this embodiment, the nozzle 11 is directed to the bottom of the bowl 3 so as to direct the inlet 5 of the trap drainage channel 4.
The recess 10 having a size corresponding to the shape of is opened and formed. The bent portion 4a of the trap drainage channel is provided in the recess 10.
The nozzle 11 pointing inward (inner depth) is embedded so that the jet injection hole 12 is flush with the wall surface of the bowl portion, and is attached in a watertight manner.

A box 13 is provided above the rear part of the toilet bowl 1,
A washing water supply device 14 is provided in the box 13.

The cleaning water supply device 14 includes a control device 15, an operating portion 16 for supplying a cleaning activation input to the control device 15, a rim valve 17, a jet valve 18, and an atmosphere release valve 19.
Is equipped with. The water supply pipe 20 is branched and connected to one ends of the rim valve 17 and the jet valve 18, and the other end of the rim valve 17 is connected to the rim water passage 8 through a rim water supply pipe 21.
The other end of the jet valve 18 is connected to the jet injection hole 1 of the nozzle 11 via the atmosphere release valve 19 and the jet water supply pipe 22.
Connect to 2.

The control device 15 is provided with a memory (not shown) in which data relating to the order of supplying the cleaning water and the supply time of the cleaning water are stored in advance. The rim valve 17 and the jet valve 18 are driven in the order shown in the time chart of FIG.

The operation of this embodiment will be described with reference to this time chart.

When a cleaning activation input signal is given from the operation section 16, the control section 15 first drives the jet valve 18 to an open state. As a result, cleaning water is sprayed from the jet spray hole 12 of the nozzle 11 via the atmosphere release valve 19 and the jet water supply pipe 22. At this time, the nozzle 11 is
Since it is provided within 0, the movement of filth is not disturbed by the nozzle 11.

After the elapse of a predetermined time t0, the control unit 15 drives the jet valve 18 to the closed state, and the rim valve 1
7 is opened. As a result, the jet injection hole 1
The injection from 2 is stopped, and the cleaning water is supplied from the rim water passage 8 to the bowl portion 3 via the rim water supply pipe 21.
Wash the walls of the.

After a lapse of a predetermined time t1, the rim valve 17
Is driven to a closed state, and the jet valve 18 is driven to an open state. As a result, the flush water is released to the atmosphere release valve 19
And it is jetted toward the bent portion 4a of the trap drainage channel 4 from the jet jet hole 12 of the nozzle 11 via the jet water supply pipe 22.

This washing water passes over the bent portion 4a and is discharged into the discharge passage 4
b, and is further discharged from the outflow port 6. At this time, the negative pressure generated in the trap drainage channel 4 causes trap drainage channel 4
A siphon state is generated inside, and discharge of waste / sewage in the bowl portion 3 is started.

The siphon state t2 is stopped when the sealing surface is lower than the lower end 2a of the partition wall 2 and air flows into the trap drainage channel 4.

The controller 15 continues to supply the wash water to the jet injection holes 12 and discharges the dirt and the like remaining on the bottom of the bowl 3 and the sealing surface.

Further, the cleaning water is continuously supplied to the jet injection holes 12 to supply the sealing water to the bowl portion 3, and when the supply time t3 elapses, the jet valve 18 is driven to a closed state to perform a series of operations. The cleaning operation is completed.

Further, the cleaning water may be supplied to the jet injection hole 12 by intermittently injecting the jet valve 18. Further, a flow control valve may be used as the jet valve 18 to change the jet water flow.

[0025]

As described above, in the siphon jet type toilet bowl according to the present invention, the nozzle directed toward the inner and inner sides of the trap drainage channel is provided in the concave portion having the size corresponding to the shape of the nozzle formed in the lower portion of the bowl portion. Since the jet injection hole was buried so as to be flush with the wall surface of the bowl part, the movement of the filth is not obstructed by the nozzle, so it is necessary to generate a siphon action with a small amount of water without requiring an extra amount of water. Therefore, the toilet bowl can be efficiently and reliably cleaned.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a siphon jet type toilet bowl according to the present invention.

FIG. 2 is a time chart showing the order of water supply.

FIG. 3 is a vertical cross-sectional view of a conventional siphon jet type toilet bowl.

[Explanation of symbols]

1 ... Siphon jet toilet, 2 ... Partition wall, 2a ... Bottom edge,
3 ... Bowl part, 4 ... Trap drainage channel, 4a ... Bent part, 4
b ... discharge part, 4c ... throttle part, 5 ... inflow port, 6 ... outflow port,
7 ... rim part, 8 ... rim water passage, 9 ... rim oblique water hole, 10 ...
Recessed portion, 11 ... Nozzle, 12 ... Jet injection hole, 13 ... Box, 14 ... Wash water supply device, 15 ... Control device, 16 ...
Operation part, 17 ... Rim valve, 18 ... Jet valve, 19 ...
Atmosphere release valve, 20 ... Water supply pipe, 21 ... Rim water supply pipe, 22 ...
Water pipe for jet.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshiki Ota 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Totoki Equipment Co., Ltd. (72) Inventor Takashi Yoshioka 2 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka 1st-1st Totoki Equipment Co., Ltd.

Claims (1)

[Claims] 1. A siphon jet toilet having a nozzle for injecting cleaning water toward a trap drainage channel at the bottom of a bowl, wherein a recess having a size corresponding to the shape of the nozzle is trapped at the bottom of the bowl. The nozzle is formed so as to open toward the drainage channel, and the nozzle that points inwardly of the trap drainage channel is embedded in the recess so that its jet injection hole is flush with the wall surface of the bowl portion. Siphon jet toilet bowl.