JP2002088883A - Siphon jet type flush toilet stool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a siphon jet type flush toilet stool provided with a jet section capable of reducing a washing water flow rate and lowering noise level with small amount of washing water by switching water supply to a jet hole for generating siphon work and water supply to a jet hole for discharging residual dirty water. SOLUTION: In the a siphon jet type flush toilet stool provided with the jet section in the bottom section of a bowl section to injects washing water toward a trap exhaust water passage, the jet section is provided with a first jet hale, a second jet hole and a switch mechanism to switch water supply to the first jet hole and the second jet hole.

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 jet section of a siphon jet flush toilet.

[0002]

2. Description of the Related Art A siphon-jet flush toilet disclosed in Japanese Patent Application Laid-Open No. 3-253629 is known as a siphon-jet flush toilet having a jet portion for jetting flush water toward a trap drainage channel at the bottom of a bowl portion. FIG. 3 shows a longitudinal sectional view thereof. The nozzle portion 101 has a jet injection hole 103 for injecting cleaning water toward the inside of the trap drainage channel 102,
A water film injection hole 105 for generating a water film that shuts off the bowl portion 104 and the inside of the trap drainage channel 102 was provided. Therefore, the inside of the trap drainage channel 102 and the bowl portion 104 are blocked by the water film, and the jet injection holes 10
The amount of noise generated when the washing water injected from the nozzle 3 collides with the inner wall of the trap drainage channel 102 leaks to the bowl portion 104 is reduced.

[0003]

However, Japanese Patent Laid-Open Publication No. Hei 3-2
The siphon jet toilet of No. 53629 did not have a switching mechanism for switching between water supply to the jet injection holes 103 and water supply to the water film injection holes 105. Therefore, cleaning water is simultaneously jetted from the jet injection holes 103 and the water film injection holes 105, and a large amount of cleaning water is required. Further, even after the termination of the siphon action, the jet injection holes 1
Since the washing water was jetted from 03, a loud noise was generated when colliding with the inner wall of the trap drainage channel 102. The present invention has been made in order to solve such a problem, and an object thereof is to switch a water supply to a jet hole for generating a siphon effect and a water supply to a jet hole for discharging residual sewage by using a small amount of washing water. An object of the present invention is to provide a siphon-jet flush toilet provided with a low-noise jet unit.

[0004]

Means for Solving the Problems and Actions and Effects There is provided a siphon jet type flush toilet according to the first aspect of the present invention, in which flush water is sprayed toward a trap drainage channel at a bottom of a bowl portion. In a siphon jet type flush toilet provided with a jet part to be performed, the jet part,
It is characterized by comprising a first jet hole, a second jet hole, and a switching mechanism for switching water supply to the first jet hole and the second jet hole. According to the present invention, the jetting of the washing water from the first jet hole and the second jet hole can be switched, and the washing water can be jetted according to the function, so that the washing can be performed with a small amount of washing water.

According to a second aspect of the present invention, there is provided a siphon jet type flush toilet according to the first aspect, further comprising a control unit for controlling the switching mechanism based on a preset switching pattern. It is characterized by. Therefore, based on the switching pattern set in advance, it is possible to switch the jet of the cleaning water from the first jet hole and the second jet hole, it is possible to efficiently jet the cleaning water according to the function, so that a smaller amount of It can be washed with washing water.

According to a third aspect of the present invention, there is provided a siphon jet type flush toilet according to any one of the first and second aspects, wherein a water supply source for the first jet hole and a water supply source for the second jet hole are provided. It is characterized by providing a water source separately. Therefore, a cleaning method utilizing the characteristics of the water supply source such as a gravity method or a direct pressure method can be selected, so that cleaning can be performed with a smaller amount of cleaning water.

According to a fourth aspect of the present invention, in the siphon jet type flush toilet according to any one of the first to third aspects, the first jet hole has a siphon action on the trap drainage channel. A jet hole for generating a siphon effect for injecting a washing water for generating water, wherein the second jet hole traps residual sewage, which is filth and sewage remaining at the bottom of the inlet of the trap drainage channel after completion of the siphon operation. It is a jet hole for discharging residual sewage for injecting washing water for discharging to a drainage channel. Therefore, it is possible to switch the jetting of the washing water from the jet hole for generating the siphon action and the jet hole for discharging the residual sewage, and it is possible to efficiently jet the washing water according to the function. Can be.

According to a fifth aspect of the present invention, there is provided a siphon jet type flush toilet according to the fourth aspect, wherein the residual sewage discharging jet hole is provided in an upper half portion of the rising portion of the trap drainage channel. It is characterized by injecting the cleaning water toward it. Therefore, residual sewage can be blown off to the upper half of the rising portion of the trap drainage channel, and the collision angle with the trap drainage channel can be reduced,
Collision noise can be reduced.

According to a sixth aspect of the present invention, there is provided a siphon jet type flush toilet having a jet portion for jetting flush water toward a trap drainage channel at a bottom portion of a bowl portion, wherein the jet portion is driven. And a driving device that performs the driving. Therefore, the jet unit can be driven, and the washing water can be efficiently jetted according to the function, so that washing can be performed with a smaller amount of washing water.

According to a seventh aspect of the present invention, there is provided a siphon jet type flush toilet according to the sixth aspect, wherein the driving device changes a jetting direction of flush water jetted from a jet unit when the toilet is used. It is characterized by doing. Therefore, the jetting direction of the washing water jetted from the jet unit can be changed, and the jetting of the washing water according to the function can be efficiently performed, so that the washing can be performed with a smaller amount of the washing water.

The siphon-jet flush toilet according to claim 8 is the siphon-jet flush toilet according to claim 7, wherein the jet direction control controls the driving device based on a preset jet direction of flush water. A device is provided. Therefore, the jet direction of the wash water can be controlled based on the preset jet direction of the wash water, and the jet of the wash water can be efficiently jetted according to the function. Can be.

According to a ninth aspect of the present invention, there is provided a siphon jet type flush toilet according to the eighth aspect, wherein the jetting direction pattern is such that the flush water is directed substantially toward the center of the rising portion of the trap drainage channel. After generating the siphon action by injecting the washing water, the washing water is injected toward the upper half of the rising part of the trap drainage channel. Therefore, the washing water can be efficiently injected according to the two functions of the siphoning action generating function and the residual sewage discharging function, so that the washing can be performed with a smaller amount of the washing water. Also,
The residual sewage can be blown off to the upper half of the rising portion of the trap drainage channel, and the collision angle with the trap drainage channel can be reduced, so that the collision noise can be reduced.

According to a tenth aspect of the present invention, there is provided a siphon-jet flush toilet according to any one of the sixth to ninth aspects, wherein the jet section adjusts a flow rate of the flush water to be jetted. It is characterized by having an injection flow rate adjusting mechanism. Therefore, since the flow rate of the washing water to be sprayed can be adjusted, the spraying of the washing water according to the function can be efficiently performed, so that the washing can be performed with a smaller amount of the washing water.

According to a eleventh aspect of the present invention, there is provided a siphon jet type flush toilet according to the tenth aspect, wherein the injection flow rate adjusting mechanism is controlled based on a preset flush flow rate pattern. A flow control device is provided. Therefore, the injection flow rate of the cleaning water can be controlled based on the preset injection flow rate pattern of the cleaning water, and the injection of the cleaning water according to the function can be efficiently performed. Can be.

[0015]

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

FIG. 1 is a longitudinal sectional view showing one embodiment of a siphon jet type flush toilet provided with a switching mechanism of the present invention. In FIG. 1, a siphon jet type flush toilet 1
Has a bowl part 3 and a trap drainage channel 4 partitioned by a partition wall 2. The trap drainage channel 4 connects an inflow port 5 formed in a lower portion of a rear wall of the bowl portion 3 and an outflow port 6 formed in a substantially central bottom surface of the siphon jet type flush toilet 1 by bending in a substantially inverted U-shape. The rising portion 4b on the upstream side of the bent portion 4a and the descending portion 4c on the downstream side of the bent portion 4a of the trap drainage channel 4 are formed in a substantially straight pipe shape. Then, a throttle portion 4d is provided near the outlet 6 at the lower end thereof, the diameter of the pipe wall being reduced inward.

A rim water passage 8 is formed in the rim portion 7 at the upper peripheral edge of the bowl portion 3 so as to protrude inward of the bowl portion 3, and a rim water hole 9 is appropriately formed on the bottom surface of the rim water passage 8. It is opened at an interval to the bowl part 3 at intervals. Bowl part 3
A jet part 10 is attached to the bottom of the watertightly by opening a concave part.

A box 11 is provided at an upper rear portion of the siphon jet toilet 1, and a washing water supply device 12 is provided in the box 11. The cleaning water supply device 12 includes a control unit 13, an operation unit 14 that supplies a cleaning start input to the control unit 13, a rim water supply valve 15, and a jet water supply valve 1 for generating a siphon action.
6 and a jet water supply valve 17 for discharging residual sewage. The water supply pipe 18 is branched and connected to one end of a rim water supply valve 15, a jet water supply valve 16 for generating a siphon effect, and a jet water supply valve 17 for discharging residual sewage, and the other end of the rim water supply valve 15 is connected via a rim water supply pipe 19. Connect to rim water channel 8.
The other end of the siphon action generating jet water supply valve 16 is provided via a siphon action generating jet water supply pipe 20, and the other end of the residual sewage discharging jet water supply valve 17 is provided via a residual sewage discharging jet water supply pipe 21. Connect to 10. In the jet unit 10, the jet water supply pipe 20 for generating the siphon action is connected to the jet hole 22 for generating the siphon action, and the jet water supply pipe 21 for discharging the residual sewage is connected to the jet hole 23 for discharging the residual sewage.

The control unit 13 has a memory (not shown) in which data relating to the water supply sequence and the water supply time is stored in advance, and when a cleaning start input signal is given, the rim water supply is performed based on the data. It is configured to drive the valve 15, the jet water supply valve 16 for generating a siphon effect, and the jet water supply valve 17 for discharging residual sewage.

When a cleaning start input signal is given from the operation unit 14, the control unit 13 first drives the rim water supply valve 15 to the open state. As a result, the washing water is supplied from the rim water passage 8 to the bowl portion 3 via the rim water supply pipe 19 to wash the wall surface of the bowl portion 3.

After a predetermined time has elapsed, the rim water supply valve 15 is driven to a closed state, and the siphon action generating jet water supply valve 16 is driven to an open state. As a result, the washing water is jetted from the siphon action generating jet hole 22 of the jet section 10 toward the vicinity of the bent portion 4a of the trap drainage channel 4 through the siphon action generating jet water supply pipe 20.
This washing water flows through the bent portion 4a to the descending portion 4c, and is further discharged from the outlet 6. At this time, a siphon state occurs in the trap drainage channel 4 due to the negative pressure generated in the trap drainage channel 4, and the bowl Discharge of waste and wastewater in the part 3 is started. In this siphon state, the sealing surface is the lower end 2a of the partition 2.
It stops when it falls further and air flows into the trap drainage channel 4.

When the siphon state is stopped, the jet water supply valve 16 for generating siphon action is driven to a closed state, and the jet water supply valve 17 for discharging residual sewage is driven to an open state. As a result, the washing water is jetted from the residual sewage discharging jet hole 23 of the jet unit 10 to the upper half which is the half of the rising portion 4b on the partition 2 side via the residual sewage discharging jet water supply pipe 21. . This washing water blows and discharges the residual sewage, which is filth and sewage, remaining at the bottom of the inlet 5 of the trap drainage channel 4 after the siphon operation is completed.

When the discharge of the residual sewage is completed, the jet water supply valve 17 for discharging the residual sewage is driven to a closed state, and the rim water supply valve 15 is driven to an open state to supply the sealed water to the bowl portion 3. Do. When this sealed water supply is completed,
The rim water supply valve 15 is driven to a closed state, and a series of cleaning operations is completed.

FIG. 2 is a longitudinal sectional view showing an embodiment of a siphon jet type flush toilet provided with a drive device of the present invention. In FIG. 2, the siphon-jet flush toilet 1 has a bowl part 3 and a trap drainage channel 4 partitioned by a partition wall 2. The trap drainage channel 4 connects an inflow port 5 formed in a lower portion of a rear wall of the bowl portion 3 and an outflow port 6 formed in a substantially central bottom surface of the siphon jet type flush toilet 1 by bending in a substantially inverted U-shape. The rising portion 4b on the upstream side of the bent portion 4a and the descending portion 4c on the downstream side of the bent portion 4a of the trap drainage channel 4 are formed in a substantially straight pipe shape. Then, a throttle portion 4d is provided near the outlet 6 at the lower end thereof, the diameter of the pipe wall being reduced inward.

A rim water passage 8 is formed in the rim portion 7 at the upper peripheral edge of the bowl portion 3 so as to protrude inward of the bowl portion 3, and a rim water hole 9 is appropriately formed on the bottom surface of the rim water passage 8. It is opened at an interval to the bowl part 3 at intervals. Bowl part 3
A jet part 10 is attached to the bottom of the watertightly by opening a concave part. A box 11 is provided at an upper rear portion of the siphon jet toilet 1, and a washing water supply device 12 is provided in the box 11.

The cleaning water supply device 12 includes a control unit 13, an operation unit 14 for inputting a cleaning start input to the control unit 13, a rim water supply valve 15, and a jet water supply valve 31. The water supply pipe 18 branches and is connected to one end of the rim water supply valve 15 and the jet water supply valve 31. The other end of the rim water supply valve 15 is connected to the rim water supply pipe 19.
To the rim waterway 8 via Jet water supply valve 31
Is connected to the jet unit 10 via a jet water supply pipe 32.
Connect to In the jet unit 10, the jet water supply pipe 32 connects to the jet hole 33. The jet unit 10
A driving device 34 is provided.

The control unit 13 has a memory (not shown) in which data relating to the water supply sequence and water supply time of the cleaning water is stored in advance, and when a cleaning start input signal is given, the rim water supply is performed based on the data. It is configured to drive the valve 15, the jet water supply valve 31, the driving device 34, and the injection flow rate adjusting mechanism (not shown).

When a cleaning start input signal is given from the operation unit 14, the control unit 13 first drives the rim water supply valve 15 to the open state. As a result, the washing water is supplied from the rim water passage 8 to the bowl portion 3 via the rim water supply pipe 19 to wash the wall surface of the bowl portion 3.

After a lapse of a predetermined time, the rim water supply valve 15 is driven to a closed state, and the jet water supply valve 31 is driven to an open state. As a result, the washing water is supplied to the jet water supply pipe 32.
Is injected from the jet hole 33 of the jet part 10 toward the vicinity of the bent part 4 a of the trap drainage channel 4. This washing water flows through the bent portion 4a to the descending portion 4c, and is further discharged from the outlet 6. At this time, a siphon state occurs in the trap drainage channel 4 due to the negative pressure generated in the trap drainage channel 4, and the bowl Discharge of waste and wastewater in the part 3 is started. This siphon state is stopped when the water sealing surface falls below the lower end 2a of the partition wall 2 and air flows into the trap drainage channel 4.

When the siphon state has stopped, the driving device 34 is driven to change the jetting direction of the washing water jetted from the jet holes 33. As a result, the washing water is sprayed toward the upper half, which is the half of the rising portion 4b on the partition 2 side. This washing water is supplied to the inlet 5 of the trap drainage channel 4 after the siphon action is completed.
Residual sewage, which is filth and sewage remaining at the bottom, is blown off and discharged to the trap drainage channel 4. At the same time, the injection flow rate adjusting mechanism is driven to adjust the injection flow rate.

When the discharge of the residual sewage is completed, the driving device 34 is driven to return the jet direction and the jet flow rate of the wash water jetted from the jet hole 33 to the initial state.
The rim water supply valve 15 is driven to an open state to perform sealed water supply to the bowl portion 3. When the sealed water supply is completed, the rim water supply valve 15 is driven to a closed state, and a series of cleaning operations is completed.

[0032]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a siphon jet type flush toilet provided with a switching mechanism of the present invention.

FIG. 2 is a longitudinal sectional view showing one embodiment of a siphon jet type flush toilet provided with a drive device of the present invention.

FIG. 3 is a longitudinal sectional view of a conventional siphon-jet toilet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Siphon jet type flush toilet 2 ... Partition wall 2a ... Lower end 3 ... Bowl part 4 ... Trap drainage channel 4a ... Bent part 4b ... Ascent part 4c ... Descent part 4d ... Throttle part 5 ... Inlet 6 ... Outlet 7 ... Rim part Reference Signs List 8 rim water passage 9 rim spray hole 10 jet part 11 box 12 washing water supply device 13 control part 14 operation part 15 rim water supply valve 16… jet water supply valve for generating siphon action 17… for discharging residual sewage Jet water supply valve 18 ... Water supply pipe 19 ... Rim water supply pipe 20 ... Jet water supply pipe for siphon action generation 21 ... Jet water supply pipe for residual sewage discharge 22 ... Jet hole for siphon action generation 23 ... Jet hole for residual sewage discharge 31 ... Jet water supply Valve 32 ... Jet water supply pipe 33 ... Jet hole 34 ... Drive device 101 ... Nozzle part 102 ... Trap drainage channel 103 ... Jet injection hole 10 ... bowl portion 105 ... water film for the injection hole

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hidemine Miyahara 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka F-term (in reference) 2D038 CA02 2D039 AC04 AD04 CB01 FC00

Claims (11)

[Claims] 1. A siphon jet type flush toilet having a jet portion for jetting washing water toward a trap drainage channel at a bottom portion of a bowl portion, wherein the jet portion has a first jet hole, a second jet hole, And a switching mechanism for switching water supply to the first jet hole and the second jet hole. 2. The siphon-jet flush toilet according to claim 1, further comprising a control unit that controls the switching mechanism based on a switching pattern set in advance. 3. The siphon-jet flush toilet according to claim 1, wherein a water supply source for the first jet hole and a water supply source for the second jet hole are provided separately. 4. The method according to claim 1, wherein the first jet hole is a siphon effect generating jet hole for injecting a washing water for generating a siphon effect in the trap drainage channel, and the second jet hole is configured to stop the siphon operation after the siphon operation ends. 4. A residual sewage discharge jet hole for injecting washing water for discharging residual sewage, which is filth and sewage remaining at the bottom of the inlet of the trap drainage channel, to the trap drainage channel. The siphon-jet flush toilet according to any one of the preceding claims. 5. The siphon-jet flush toilet according to claim 4, wherein the residual sewage discharge jet hole injects flush water toward an upper half portion of the rising portion of the trap drainage channel. 6. A siphon jet type flush toilet having a jet at a bottom portion of a bowl portion for jetting flush water toward a trap drainage channel, comprising a driving device for driving the jet portion. Jet flush toilet. 7. The siphon-jet flush toilet according to claim 6, wherein the driving device changes a spray direction of the flush water ejected from the jet unit when the toilet is used. 8. The siphon-jet flush toilet according to claim 7, further comprising an ejection direction control device for controlling the driving device based on a preset washing water ejection direction pattern. 9. The trapping direction pattern is such that washing water is injected substantially toward the center of the rising portion of the trap drainage channel to generate a siphon action, and then the cleaning water is directed toward the upper half of the rising portion of the trap drainage channel. 9. The siphon-jet flush toilet according to claim 8, wherein the flush water is sprayed. 10. The siphon-jet flush toilet according to claim 6, wherein the jet unit includes a jet flow rate adjusting mechanism for adjusting a flow rate of the wash water to be jetted. 11. A siphon-jet flush toilet according to claim 10, further comprising an injection flow rate control device for controlling said injection flow rate adjustment mechanism based on a preset injection flow rate pattern of washing water.