JP3077130B2 - Siphon-jet toilet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a siphon jet toilet which once receives water from a low tank and jets the water from a jet outlet to wash the toilet.

[0002]

2. Description of the Related Art Conventionally, there is known a siphon jet toilet which uses a low tank to supply washing water to a jet outlet provided at the bottom of a bowl of a toilet bowl to discharge heavy dirt present at the bottom of the bowl. Have been.

[0003]

By the way, in order to discharge heavy dirt present at the bottom of the bowl portion, it is necessary to strongly jet cleaning water (particularly jet jet water).

However, in the case of using a low tank, in order to generate strong washing water, a large-capacity low tank or a tall low tank must be used to increase the pressure, which not only impairs the appearance but also hinders cleaning. Also, there were space problems.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a siphon-jet toilet that can eject powerful jet water even though it is a compact low tank.

[0006]

In order to solve the above-mentioned problems, a siphon jet toilet according to the present invention is provided with a jet water supply channel which is different from a conventionally provided flow passage from a low tank to a jet outlet. At the same time, the jet water supply path was directly connected to a water supply source.

[0007]

According to the siphon jet toilet according to the present invention, since a plurality of jet water supply channels are provided, the capacity of the low tank can be reduced, and powerful jet water can be jetted.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a siphon jet toilet according to the present invention, and FIG. 2 is a transverse sectional view of the same.

A siphon jet toilet (hereinafter simply referred to as a toilet) 1 has a bowl portion 3 partitioned by a partition 2 and a trap drainage channel 4.

The trap drainage channel 4 is formed by connecting an inflow port 5 formed in the lower part of the rear wall of the bowl portion 3 and an outflow port 6 formed in the bottom of the toilet 1 at a substantially bottom portion in a substantially inverted S-shape. Has formed.

A rim water passage 8 is formed in the rim 7 at the upper peripheral edge of the bowl portion 3 so as to protrude into the bowl portion 3 in an annular shape. It is opened at an angle to the bowl part 3 every time.

A jet nozzle 10 is attached to the bottom of the bowl portion 3 in a watertight manner. A first jet ejection hole 11 provided in the jet nozzle 10 is provided at the inlet 5 of the trap drain passage 4. Is oriented.

In the present invention, a second jet outlet 12 is provided at the bottom of the bowl portion 3, and the second jet outlet 12 communicates with the bottom surface of the rim water passage 8 via a flow path 13. It is configured to

A low tank 14 is provided above the rear part of the toilet 1. The low tank 14 automatically supplies water to the tank 14 when the water 16 is used by operating a handle 15 provided on a side wall of the tank 14, and when the water 16 accumulates to a certain water level, the buoyancy of the floating ball 17 automatically increases the water. A ball tap 18 for stopping water supply, a lever 19 interlocked with the handle 15 inside the low tank 14, a float valve 21 connected to the lever 19 via a chain 20, and opened and closed by the float valve 21 It comprises a drain valve 22 and an overflow pipe 23 connected to the suction side of the drain valve 22.

The water supply pipe 24 is connected to a tank water supply port 26 and a jet water supply path 27 communicating with the first jet ejection hole 11 through an atmosphere release valve 25 and a ball tap 18.

Further, the drain side of a drain valve 22 provided at the lower part of the low tank 14 is connected to a rim water passage and a rim water supply chamber 28 communicating with the second jet outlet 12.

The operation of the above configuration will be described with reference to FIG.

When the handle 15 is turned, the float valve 21 is lifted up via a lever 19 interlocked with the handle 15 so that the washing water 16 in the low tank 14 flows through the rim water passage 8 and the flow path 13 to the rim injection holes 9 and 9 respectively. The bowl 3 is supplied from the second jet outlet 12 to the bowl 3, and the bowl 3 is cleaned.

At the same time, a negative pressure is generated in the trap drain passage 4, so that the trap drain passage 4 enters a siphon state and starts discharging waste and sewage.

When the washing water 16 in the low tank 14 decreases, the float valve 21 is sucked by the force of the washing water 16 flowing into the drain valve 22 and the drain valve 22 is closed.

During this time, the ball tap 18 automatically supplies water to the tank water supply port 26 for supplying water from the water supply source 29 to the low tank 14 and the jet water supply passage 27 communicating with the first jet ejection hole 11.

Therefore, even after the jetting of the washing water from the second jet jetting hole 12 is stopped, the washing water is continuously jetted from the first jet jetting hole 11 toward the weir portion 4a of the trap drainage channel 4. .

Therefore, the jet jet water becomes strong due to the combination of the washing water from the first jet jet port 11 and the second jet jet port 12, and heavy dirt is surely introduced into the trap drainage channel 4. Push in.

The water level of the reservoir water 30 is lower than the lower end 2 of the partition wall 2.
The siphon state is continued until the air flow falls below a and the air flows into the trap drainage channel 4, and then the bowl portion 3 is sealed.

Further, when the floating ball 17 in the low tank 14 is again pushed up to the original water level by the water supply, the water stops.

In the above embodiment, the jet holes are separately provided from the low tank and the water supply source. However, the flow passages to the two jet holes may be merged on the way to form one jet hole. Of course.

Further, as shown in FIG. 4, water is supplied to the low tank, the rim, and the jet ejection hole by using an electrically operated valve, and the cleaning water is supplied to the rim and the jet ejection nozzle in the same manner as in the above embodiment. Is also good. The same parts as those in FIG. 3 are denoted by the same reference numerals.

The controller 31 is supplied with power from the power supply and generates an output for driving each of the electrically operated valves 33, 34, 35 to an open state for a preset time when the cleaning start switch 32 is operated. It is configured as follows.

The control device 31 includes, for example, a timer circuit which is started based on a cleaning start input signal from a cleaning start switch 32, and power-amplifies the output of the timer circuit to control the electric operation valves 33, 34, 35. It can be constituted by a drive circuit or the like for driving.

As the electrically operated valve, for example, an electromagnetic on-off valve or a switching valve can be used.

In addition to the electromagnetic on / off valve using an electromagnetic solenoid, a valve having a structure in which the valve is opened / closed or switched by an actuator using a piezoelectric element may be used.

[0033]

As described above, the siphon jet toilet according to the present invention provides a jet water supply channel separate from the flow path from the low tank to the jet outlet, and connects the jet water supply channel directly to the water supply source. Because the connection is made, powerful jet water can be jetted without requiring much water.

Therefore, the low tank of the toilet can be made compact, for example, a low silhouette.
Not only does the appearance not be impaired, but there is also no problem in that there is room in the space, which hinders cleaning.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view of a siphon jet toilet according to the present invention.

FIG. 3 is a block diagram for explaining a water supply operation.

FIG. 4 is a block diagram for explaining a water supply operation.

[Explanation of symbols]

1 ... siphon jet toilet, 2 ... partition wall, 2a ... lower end,
3 ... Bowl part, 4 ... Trap drainage channel, 4a ... Weir part, 5 ...
Inlet, 6 ... Outlet, 7 ... Rim, 8 ... Rim waterway, 9 ...
Rim exit hole, 10: jet nozzle, 11: first jet ejection hole, 12: second jet ejection hole, 13: flow path, 14: low tank, 15: handle, 16: water, 1
7 ... Floating ball, 18 ... Ball tap, 19 ... Lever, 20 ...
Chain, 21: float valve, 22: drain valve, 23: overflow pipe, 24: water supply pipe, 25: atmosphere release valve, 26 ...
Tank water supply port, 27 ... jet water supply channel, 28 ... rim water supply chamber, 29 ... water supply source, 30 ... stored water, 31 ... control device, 3
2. Cleaning start switch, 33, 34, 35 ... Electric operated valve.

Continuation of the front page (56) References JP-A-3-90753 (JP, A) JP-A-63-194986 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E03D 11 / 02 E03D 1/28

Claims (1)

(57) [Claims] 1. A siphon jet toilet device for supplying washing water to a jet outlet provided near the bottom of a bowl portion through a flow passage from a low tank provided at a rear portion of a toilet and discharging waste, the toilet comprises the jet A siphon jet toilet having a jet water supply channel separate from a flow path to a hole and connecting the jet water supply channel directly to a water supply source.