JPH02200931A - Siphon jet type closet - Google Patents

Abstract

PURPOSE:To improve filth carrying performance by jetting showers of washing water through plural jetting holes provided in a jet nozzle which feeds washing water to a trap drainage passage from a feed water device. CONSTITUTION:A bowl 3 partitioned by a bulkhead 2 and a trap drainage passage 4 are provided at a closet 1, and the drainage passage 4 is formed by bending a flow inlet 5 and a flow outlet 6 into an inverted U shape and a jet nozzle 11 is installed at the bottom of the bowl portion 3. The washing water applying surface 11a of the nozzle 11 is formed along the shape of the bowl bottom and plural jetting holes are arranged scattering. A jetting valve 20 is opened by a control device 14 to jet washing water into the discharging passage 4 from the jetting hole. The air in the discharging passage 4 is discharged to the discharging pipe side to generate negative pressure, so that the filth in the bowl 3 is discharged with pool water 23. It is thus possible to improve filth carrying performance.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement of a jet nozzle for a siphon jet toilet.

(Prior Art) As shown in FIG. 7, a jet nozzle 100 of a conventional siphon jet toilet has an injection hole 10 with a diameter of about 8 mm.
It had one 1. The cleaning water injected from the injection hole 101 flows into the trap drainage channel 102 as shown by the arrow in FIG.
The approximately central portion of the trap becomes a jet flow, which efficiently generates a siphon effect in the trap drainage channel 102.

(Problem to be Solved by the Invention) However, the ability of the jet stream to transport waste is not sufficient, and there are cases where the waste 104 remains at the bottom of the bowl portion 103 of the toilet bowl, and floating waste with a light specific gravity cannot be transported. There is.

The present invention is like this! Jl! The purpose of this invention is to provide a toilet bowl that has an improved ability to transport filth without reducing its ability to generate siphon action.

(Means for Solving the Problems) In order to solve the above problems, the siphon jet toilet according to the present invention has a jet nozzle formed with a plurality of injection holes that spray washing water in a shower-like manner toward the trap drainage channel. It is characterized by

(Function) The cleaning water is sprayed in a shower form from the plurality of injection holes of the jet nozzle toward the trap drainage channel, and the jet stream transports the waste toward the trap drainage channel.

(Implementation g4) Embodiments of the present invention will be described below with reference to the accompanying drawings.

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

In the figure, l is a siphon jet type toilet bowl, and the toilet bowl 1 is divided by a partition wall 2 into a bowl part 3 and a trap drainage channel 4.
has. The trap drainage channel 4 connects an inlet 5 opened at the lower part of the rear wall of the bowl part 3 and an outlet 6 opened at the rear bottom surface of the toilet bowl 1 by being bent in a substantially inverted 0 shape.

A rim passageway 8 is formed in the rim part of the upper peripheral edge of the bowl part 3 in an annular shape so as to protrude inward of the bowl part 3, and rim water injection ports 9 are provided at appropriate intervals on the bottom surface of the rim passageway 8. It is opened diagonally to the bowl part 3. Further, the rim water passage 8 communicates with the rim water supply chamber 10 at the rear.

A jet nozzle 11 is attached to the bottom of the bowl portion 3 via an adhesive or the like.

A box 12 is provided at the rear upper part of the toilet bowl 1, and a water supply device 13 is housed in the box 12. The water supply system @ 13 includes a Le J control device 14, an operation section 15 that provides a cleaning start input to the control device 14, a rim valve mechanism 16 that controls water supply to the bowl section 3, an atmosphere release valve 17, and a rim valve mechanism 16 for controlling water supply to the bowl section 3. Flow meter 18, a jet valve mechanism 19 that controls water supply to the jet nozzle 11, an atmosphere release valve 20, and a jet flow meter 21
It consists of.

One end of the rim valve mechanism 16 is connected to the water supply pipe 22, and the other end is connected to the rim water supply port 10a of the rim water passage chamber 10 via the atmosphere release valve 17 and the rim flow meter 18.

One end of the jet valve mechanism 19 is connected to a water supply pipe 22, and the other end is connected to one end of a jet water conduit 23 via an atmosphere release valve 20 and a jet flow meter 21. This jet water conduit 23 is made of metal, synthetic resin, or synthetic rubber, and connects the water supply device 13 and the jet nozzle 11 directly. It is located along the rear lower surface of the.

The other end of the jet water conduit 23 is connected to the water supply port side of the jet nozzle 11 via a pipe joint 24 or the like.

FIG. 2 is an explanatory diagram showing the cleaning water jetting state of the jet nozzle, and FIG. 3 is a layout diagram of the jet nozzles.

The cleaning water injection surface 11a of the jet nozzle 11 is formed along the bottom shape of the bowl 3, and a plurality of injection holes 11b are formed therein.
... are bored from the inlet 5 of the trap drainage channel 4 toward the inside of the trap drainage channel 4 as shown by arrows in FIG. 2, and the plurality of injection holes 11b... The jets are distributed so as to spread the jet over a wide area within the area.

FIG. 3 shows an example of the arrangement of injection holes. In this embodiment, 12 injection holes 11b are provided at equal intervals on concentric circles with a diameter of about 15 mm and a diameter of about 30111, and the opening of each injection hole 11b is The diameter of the part is 1.5 as, and the total area of the 24 openings is approximately the same as that of one injection hole with a diameter of 8 mm.

FIG. 4 is a block diagram of the water supply device.

The control device 14 includes an input interface circuit 14a and a microprocessor (MP[J) 14b.

Consisting of a memory 14C, a timer 14d, and an output interface circuit 14e, the human interface 14a includes:
Operation unit 15 and rim and jet flow meters 18
．． 21 is connected to the output interface circuit 14e, and a rim valve mechanism 16 and a jet valve mechanism 19 are connected to the output interface circuit 14e.

The operation unit 15 is equipped with a switch for starting flushing of the toilet bowl 1, and the opening and closing of this switch is triggered by a start signal 1i.
15a is input to the control device 14.

Note that the operation unit 15 may be provided with a plurality of operation buttons so that the supply amount of washing water can be selected, and a switch or sensor for detecting the 11 seats may be provided, and these signals may be input to the control device 14. The configuration may be such that the operation of the operating unit 15 is enabled only in the seated state, or the cleaning is automatically started after a predetermined period of time after the seated state changes to the non-seated state.

The flowmeters 18 and 21 for the rim and jet use impeller type flowmeters. This flow meter 18.21 is installed on the impeller.
A stone is installed to electromagnetically detect the rotation of the impeller and output an alternating electromotive force with a frequency proportional to the rotation of the impeller as a flow signal.

Note that the flowmeters 18 and 21 may be an electromagnetic flowmeter or the like other than the impeller type.

The flow signal inputted to the human power interface circuit 14a through the flow signal lines 18a, 21a is waveform-converted within the human power interface circuit 14a, and converted into a pulse signal having a predetermined amplitude and a predetermined pulse width proportional to the frequency of the flow signal. and is input to the microprocessor 14b.

The rim and jet valve mechanisms 16.19 are, for example, t
This electromagnetic valve is one that opens when a predetermined voltage is applied.

16a and 19a are signal lines for driving each valve mechanism 16 and 19, respectively.

Next, the operation of this embodiment will be explained with reference to the time chart of FIG. 5 and the flow chart of FIG. 6. In addition, in the flowchart of FIG. 6, 31 to S6 indicate each step of the flowchart. For convenience of explanation, the rim valve mechanism 16 and the jet valve mechanism 19 will be referred to as a rim valve and a jet valve, respectively.

The control device 14 drives the rim valve 16 to the open state in response to the activation signal from the operating section 15 (S 1 ).

Thereby, flush water is supplied to the bowl portion 3 of the toilet bowl 1. The supplied washing water generates a vortex in the bowl part 3, and pre-washes the bowl part 3.

The microprocessor 14b counts pulse signals obtained by shaping the flow rate signal of the rim flowmeter 18 to obtain an integrated soaking amount value or an instantaneous flow rate, and calculates the set value of the bowl pre-washing water amount previously set in the memory 14c. When the pre-cleaning time coincides with the timer 14d, or when the pre-cleaning time preset in the timer 14d has elapsed, the rim valve 16 is closed via the output interface circuit 14e (S2).
.

Next, the control device 14 drives the jet valve 20 to an open state (S3), thereby causing the cleaning water to flow to the jet nozzle 1.
The water is injected into the trap drainage channel 4 from the injection holes 11b of No. 1. Therefore, the amount of cleaning water flowing into the discharge passage 4b over the base 4a of the trap drainage passage 4 increases, the force of the cleaning water also becomes stronger, and the air in the trap drainage passage 4 flows out from the outlet 6 along with the cleaning water as shown in the figure. It is discharged to the drain pipe side. Therefore, a negative pressure is generated in the trap drainage channel 4, and the standing water 23 in the bowl part 3 is drawn into the trap drainage channel 4, and the trap drainage channel 4 is filled with washing water, creating a complete siphon state. Become.

The siphon action continues until the water level of the standing water 23 drops below the lower end 2a of the partition wall 2! During this time, most of the dirt in the bowl section 3 is discharged together with the standing water 23. Even when the siphon action is stopped, the jet nozzle 11 continues to spray cleaning water, thereby discharging dirt and floating dirt remaining at the bottom of the bowl portion 3 by a jet stream.

After driving the jet valve 19 to the open state in step S3, the control device 14 immediately starts the timer 14d, and when a preset predetermined time has elapsed, or similarly to the bowl section described above, the control device 14 starts the timer 14d. Preset jet water supply amount data and jet flow meter 2
When the amount of water supplied based on the flow rate signal in step 1 matches the amount of water supplied, the jet valve 19 is driven to the closed state (S 4
)'.

After closing the jet valve 19 in step S4, the control device 14 drives the rim valve 16 to open again.
5) When a preset amount of sealing water is supplied to the bowl portion 3, or when the sealing water supply time preset in the timer 14d has elapsed, the rim valve 16 is activated.
is closed (Sa).

This completes the series of water supply controls shown in FIG.

In this embodiment, even after the siphon action ends, the jet nozzle 1
Since washing water is sprayed in a shower-like manner from step 1, dirt can be discharged extremely effectively.

(Effects of the Invention) As explained above, the toilet bowl according to the present invention has high filth conveyance performance because it sprays washing water from the plurality of injection holes of the jet nozzle toward the trap drainage channel in a shower-like manner. Dirt and floating filth at the bottom can be efficiently discharged.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the toilet bowl according to the present invention, Fig. 2 is an explanatory diagram showing the state of jet nozzle jetting cleansing water, Fig. 3 is a layout diagram of the injection holes of the jet nozzle, and Fig. 4 is a diagram of the water supply device. FIG. 5 is a time chart showing the operation of the water supply device, FIG. 6 is a flow chart thereof, and FIG. 7 is an explanatory diagram showing the structure and operation of a jet nozzle of a conventional siphon jet toilet. In the drawings, 1 is a siphon jet type toilet bowl, 3 is a bowl part, 4 is a trap drainage channel, 5 is an inlet of the trap drainage channel, 11 is a jet nozzle, 11a is a washing water injection surface, l
lb is an injection hole, 13 is a water supply device, and 23 is a jet water guide pipe. Figure 6

Claims (1)

[Claims] A toilet that supplies wash water from a water supply device to a trap drain to generate a siphon effect, characterized in that the jet nozzle is provided with a plurality of injection holes that spray wash water in a shower shape toward the trap drain. A siphon jet toilet.