JPH04118432A - Washing water supply device for water closet - Google Patents

Abstract

PURPOSE:To exhaust air in a trap water supply channel and to make it possible to suppress the generation of noises in the case of washing of a drainage trap section by providing a water injection means to inject small flow from a channel different from a main channel to the trap water supply channel. CONSTITUTION:A trap water supply channel 19 to supply washing water for generating siphonage is provided to a drainage trap section 3 of a water closet 1. After that, a water injection means 38 to inject small flow from a channel different from a main channel to the trap supply channel 19. When water is supplied for washing the drainage trap section 3, water injection of small flow is made to the trap water supply channel 19 through the water injection means 38, and after air in the trap water supply channel 19 is quietly exhausted, the washing of the drainage trap section 3 is made. According to the constitution, when the drainage trap section 3 is washed, air suction can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a flushing water supply device for a toilet bowl, and more particularly to a trap water supply channel that supplies flushing water to a drain trap portion to generate a siphon action.

(Prior Art) A toilet bowl equipped with a trap water supply channel for supplying water to the drain trap section is designed to clean the drain trap section by applying a high-speed jet stream of water to the drain trap section. It creates a siphon effect on the standing water inside, flushing it away along with the dirt and cleaning.

The jet water stream is produced by a jet nozzle at the tip of the trap water channel.

At the end of cleaning, for sanitary reasons, air is introduced by an atmosphere release valve installed in the water supply channel, and communication between the upstream side and the standing water in the drain trap section is cut off.

(Problems to be Solved by the Invention) However, there is a problem in that intense noise is generated when cleaning the drain trap section.

This noise is temporarily generated in addition to the sound of water flowing when cleaning the drain trap section. This is due to air in the trap water channel getting caught up in the jet water stream when the cleaning water is jetted out from the jet nozzle at high speed. To prevent this, it is necessary to exhaust the air in the trap water supply channel before supplying water for cleaning.

An object of the present invention is how to discharge air in the trap water channel prior to water supply for cleaning in order to suppress noise when cleaning the drain trap section.

(Means for Solving the Problems) In order to solve the above problems, water is injected from a route different from the main route into the trap supply channel that supplies flushing water for generating siphon action to the drain trap section of the toilet bowl, and Water injection means for injecting water at a small flow rate to discharge air in the water supply channel is provided.

(Operation) A small flow of water is injected into the trap water supply channel from a route different from the main route by the water injection means, and air in the trap water supply channel is discharged.

(Example) Embodiments of the present invention will be described below based on the accompanying drawings.

FIG. 1 is a longitudinal cross-sectional view of a toilet bowl equipped with a flushing water supply device according to an embodiment of the present invention.

The toilet bowl 1 has a drain trap part 3 communicating with the ball part 2, and is provided with an equipment box 6 on the back side of the rim part 4 at the upper edge of the ball part 2, in which a cleaning water supply device 5 according to the present invention is housed.

The ball portion 2 and the drain trap portion 3 are separated by a partition wall 11, and the inlet 3a of the drain trap portion 3 is filled with accumulated water. Further, the ball water supply pipe 12 extends from the cleaning water supply device 5 to the rim water supply chamber 13, and further communicates with the rim water passage 14 formed in the rim portion 4 to form a ball water supply passage 15. Washing water from the washing water supply device 5 is discharged from the sinking port 16 at the upper edge of the ball portion 2, and the ball portion 2 is washed with this water.

The trap water supply pipe 17 is connected from the cleaning water supply device 5 to a jet nozzle 18 that opens to the inlet 3a of the drain trap section 3 to form a trap water supply channel 19. jet nozzle 1
Reference numeral 8 is provided facing the drain trap section 3 side, and the water sent from the cleaning water supply device 5 generates a jet water flow in the drain trap section 3, and the drain trap section 3 is further cleaned by the siphon effect.

In the cleaning water supply device 5, a switching valve 23 is connected to a main valve 22 that opens and closes the water supply from the water supply pipe 21 side and adjusts the flow rate. Connected and configured.

The upstream side of the switching valve 23 is connected to the original water supply channel 26, and the downstream side is connected to the ball water supply pipe 12 and the trap water supply pipe 17.

FIG. 2 is a sectional view of a switching valve of a cleaning water supply device according to an embodiment of the present invention.

The switching valve 23 has an introduction path 32 communicating with a water supply port 31 to be connected to the main valve 22, a servo valve flow path 34 partitioned off by a pilot servo valve 33, and a differential valve flow path partitioned off by a differential valve 35. 36.

The pilot servo valve 33 controls the servo valve flow path 3 according to the signal.
Open and close the water supply to 4. In addition, the differential valve 35
2 and the servo valve flow path 34 open due to the pressure difference between the introduction path 3
2, the differential valve 35 operates in the opposite direction according to the opening and closing of the pilot servo valve 33. That is, the valve control device 25
The servo valve flow path 34 and the differential valve flow path 36 are controlled by signals from the
The water supply is switched to .

The servo valve flow path 34 and the differential valve flow path 36 are connected to the ball water supply pipe 12 and the trap water supply pipe 17, respectively, and form a ball water supply channel 15 and a trap water supply channel 19.

The atmosphere release valve 37 is provided in the differential valve flow path 36 and closes by water pressure only when water is being supplied, and when the water supply is stopped, the air gap that introduces air into the water supply channel and blocks water communication is closed by the differential valve flow. 36.

The ball water supply channel 15 serves as a water injection means 38 for injecting water into the cleaning water supply device 5 configured as described above from a route different from the main route and injecting water at a small flow rate to quietly discharge the air in the trap water supply channel 19. A small flow communication pipe 38a for injecting water into the passage 19 is provided between the servo valve passage 34 and the differential valve passage 36. When water is sent to one of the servo valve flow path 34 and the differential valve flow path 36 through the communication pipe 38a, water is injected into the other at a small flow rate.

The operation of the cleaning water supply device according to the present invention having the above configuration will be explained.

The valve control device 25 of the cleaning water supply device 5 shown in FIG.
3.

First, a valve opening signal for the main valve 22 and a valve opening signal for the pilot servo valve 33 of the switching valve 23 are sent from the valve control device 25, and water is passed through the ball supply channel 15 to clean the ball portion.

At this time, the water filling the servo valve flow path 34 in FIG. 1
It is pushed out along with water from 8. Since this water supply has a small flow rate, no jet water flow is generated in the drain trap section 3, and the air is discharged quietly.

Next, the valve control device 25 sends a valve close signal to the pilot servo valve 33 to switch water flow to the trap water supply channel 19,
The drain trap section 3 is cleaned.

At this time, a jet water flow is generated in the drain trap section 3 by water feeding from the trap water supply channel 19. Since the air in the trough water supply channel 19 has already been discharged, a jet water flow is generated without noise caused by air entrainment, and the filth and accumulated water in the ball portion 2 are discharged by the siphon effect.

Further, the valve control device 25 sends a valve opening signal to the pilot servo valve 33, and after water is passed through the ball supply channel 15 to seal the ball portion, the main valve 22 is closed.

The atmosphere release valve 37 provided in the differential valve flow path 36 guides outside air into the differential valve flow path 36 to form an air gap in the trap water supply channel 19, and this air gap connects the upstream side of the switching valve 23 and the drainage. Communication with the standing water in the trap section 3 is cut off. Similarly, an air gap is formed in the ball supply channel 15 by an air release valve (not shown).

In this way, the cleaning water supply device is configured by providing a water injection means that injects water into the trap water channel from a route different from the main route and injects water at a small flow rate in order to quietly discharge the air in the trap water supply channel. The drain trap can be cleaned without making noise due to air entrainment.

The cleaning water supply device according to the present invention is not limited to the above-mentioned embodiment. For example, the water injection means may include the differential valve flow path 36 in FIG.
The same effect can be obtained even if the differential valve 35 is provided with a through hole facing the same.

Further, the position of the atmosphere release valve 37 is not limited to the differential valve flow path 36, but the same effect can be obtained if it is provided anywhere including the servo valve flow path 34 or the communication pipe 38a. It can also serve as an atmospheric release valve for use, increasing the degree of freedom in arrangement and simplifying the configuration.

Furthermore, by providing a check valve in the communication pipe 38a to stop the flow of water from the differential valve channel 36, water is concentrated in the trap water supply channel 19 when cleaning the drain trap section, thereby efficiently cleaning the drain trap section 3. can be done.

And 1. The means for injecting water into the trap water supply channel 19 is not limited to communication from the servo valve channel 34, but may also be communicated from the introduction channel 32.

In this case, the water injection means can be configured by connecting a communication pipe from the introduction path 32 to the differential valve flow path 36, or by providing a through hole in the partition wall 32a between the two.

As described above, since the cleaning water supply device according to the present invention includes various embodiments, these embodiments will be explained using a water supply system diagram according to the valve configuration of the cleaning water supply device.

FIG. 3 is a system diagram of a cleaning water supply device which is provided with water injection means from the ball supply channel when it has a separate ball supply channel in addition to the trap water supply channel.

The cleaning water supply device 41 includes a trap water supply valve 23a and a ball water supply valve 23b whose water flow is controlled by the valve control device 25.
It has a trap water supply channel 19 and a ball water supply channel 15 that communicate with each other.

A communication path 38a from the ball water supply channel 15 serves as a water injection means 38 for injecting water into the trap water supply channel 19 and injecting water at a small flow rate to quietly discharge the air in the trap water supply channel 19.
It branches off and connects to the trap water supply channel 19. The check valve 42 that stops water flow from the trap water supply channel 19 is connected to the communication channel 38a.
It can also be provided in

The atmosphere release valve is for trap water supply channel 19 and ball supply channel 1.
5, above the trap supply waterway 19, communicating path 38a
It can be selected from those above and above the ball feed channel 15. However, when the check valve 42 is installed, the atmosphere release valve 37 on the trap water supply channel 19 and the communication channel 38a on the trap water supply channel 19 side
a and 37b are dedicated to the trap water supply channel 19, and are used for the ball supply channel 15 on the ball supply channel 15 or on the ball supply channel 1.
It can be selected from the atmosphere release valves 37d and 37c on the communication path 38a on the 5th side.

The action of the cleaning water supply bag @41 is as follows.

When the ball water supply valve 23b is opened by the valve control device 125 and water is supplied to the ball water supply channel 15, water is injected into the trap water supply channel 19 at a small flow rate via the communication path 38a, and the air in the trap water supply channel 19 is removed from the trap water supply channel 15. It is quietly discharged from route 19.

Next, when the trap water supply valve 23a is opened, the drainage trap section is cleaned by the trap water supply channel 19 to prevent air from being entrained. 3. When the cleaning is finished, open the atmosphere release valves 37a, 37b, 3.
7c and 37d, air is introduced into the trap water supply channel 19 and the ball water supply channel 15, and water communication is cut off.

In this way, the drain trap section can be cleaned without making noise due to air entrainment.

Note that the trap water supply valve 23a and the ball water supply valve 23b may be an integrated two-way switching valve.

FIG. 4 is a system diagram of a cleaning water supply device which is provided with water injection means from the original waterway when it has a separate main valve in addition to the trap water supply valve.

The cleaning water supply device 43 has a main valve 22 controlled by the valve control device 25, a trap water supply valve 23a, and a ball water supply valve 23b. These valves are the original waterway 26,
Controls water flow to the trap water supply channel 19 and the ball water supply channel 15.

A communication path 38b serving as a water injection means 38 is branched from the original waterway 26 and communicated with the trap water supply channel 19.

The atmosphere release valves are atmosphere release valves 37a on the trap water supply channel 19, on the communication path 38b, and on the original waterway 26.

You can select from 37e and 37f. The atmosphere release valve 44 is for the ball supply channel 15.

The action of the cleaning water supply device 43 is as follows.

When the main valve 22 is opened by the valve control device 25 for cleaning by the ball water supply channel 15 and water is sent to the original water channel 26,
Water is injected into the trap water channel 19 at a small flow rate through the communication path 38b, and the air within the trap water channel 19 is quietly discharged from the trap water channel 19.

Next, the trap water supply valve 23a is opened and the trap water supply channel 1 is opened.
9, the drain trap portion is cleaned without entrainment of air.

At the end of cleaning, the atmosphere release valves 37a, 37e, 37f, 4
4, air is introduced into the trap water supply channel 19 and the ball water supply channel 15, and water communication is cut off.

In addition, when the ball water supply valve 23b is of a normally open type, it is possible to select any one of all the atmosphere release valves.

Even if the trap water supply valve 23a and the ball water supply valve 23b are integrated two-way switching valves, the same effect can be obtained.

Figure 5 is a system diagram of a cleaning water supply system that has a separate main valve in addition to the trap water supply valve and a separate ball supply channel, and is equipped with water injection means from the original water supply channel and the ball supply channel. be.

The cleaning water supply device 45 includes a main valve 22, a trap water supply valve 23a, and a ball water supply valve 23b, which are controlled by the valve control device 25. These valves are the original waterway 26,
Controls water flow to the trap water supply channel 19 and the ball water supply channel 15.

As a water injection means 38, a communication path 38 is connected from the ball supply channel 15.
a branches and connects to the trap water supply channel 19. and,
A communication path 38b branches from the original waterway 26 and communicates with the trap supply waterway 19. A check valve 42 that stops water flow from the trap water supply channel 19 can also be provided in the communication path 38a.

The atmosphere release valve is for trap water supply channel 19 and ball supply channel 1.
5, above the trap supply waterway 19, communicating path 38a
Top, above ball water supply channel 15, above communication path 38b, former water supply channel 2
Each atmospheric release valve 37a 37b, 37c on 6
, 37d, 37e, and 37f.

However, when the check valve 42 is installed, on the trap water supply channel 19 and on the communication channel 38a on the trap supply channel 19 side,
The atmosphere release valves 37a and 37b on the upper main water supply channel 26 are used exclusively for the trap water supply channel 19, and the communication channel 38 on the ball water supply channel 15 or on the side of the ball water supply channel 15 is used for the ball water supply channel 15.
It can be selected from the atmosphere release valves 37d and 37c above a.

The action of the cleaning water supply device 45 is as follows.

When the main valve 22 and the ball water supply valve 23b are opened by the valve control device 25 for cleaning by the ball water supply channel 15 and water is supplied, water is injected into the trap water supply channel 19 at a small flow rate via the communication passages 38a and 38b, The air within the trap waterway 19 is gently exhausted from the trap waterway 19.

Next, the trap water supply valve 23a is opened and the trap water supply channel 1 is opened.
9, the drain trap portion is cleaned without entrainment of air. The check valve 42 is connected to the trap water supply channel 19
Since the water supply is concentrated in the drain trap section 3, the drain trap section 3 can be efficiently cleaned. At the end of cleaning, the atmosphere release valves 37a and 37b
, 37c, 37d, 37e, and 37f, air is introduced into the trap water supply channel 19 and the ball water supply channel 15, and water communication is cut off.

In addition, when the ball water supply valve 23b is of a normally open type, it is possible to select any one of all the atmosphere release valves.

Even if the trap water supply valve 23a and the ball water supply valve 23b are integrated two-way switching valves, the same effect can be obtained.

(Effects of the Invention) As described above, according to the present invention, the trap water supply channel is provided with water injection means for injecting water at a small flow rate from a route different from the main route, so that air in the trap water supply channel is discharged.

Therefore, when cleaning the drain trap section, noise caused by air entrainment can be suppressed.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a toilet bowl equipped with a cleaning water supply device according to an embodiment of the present invention, FIG. 2 is a sectional view of a switching valve of a cleaning water supply device according to an embodiment of the present invention, and FIG. 3 is a trap A system diagram of a cleaning water supply system equipped with water injection means from the ball supply channel when the ball supply channel is separately provided in addition to the water supply channel. Figure 5 shows a system diagram of a cleaning water supply system equipped with water injection means, which has a separate main valve in addition to the trap water supply valve, and
FIG. 2 is a system diagram of a cleaning water supply device that is provided with water injection means from the original water supply channel and the ball water supply channel when the ball water supply channel is provided separately. 1... Toilet bowl 3... Drain trap part 5.
...Washing water supply device 19...Trap water supply channel 38.
38a, 38b...Water injection means ■

Claims (1)

[Claims] A water injection method in which water is injected from a route different from the main route into the trap water supply channel that supplies flushing water to generate a siphon effect to the drain trap section of the toilet bowl, and water is injected at a small flow rate to discharge air within the trap water supply channel. A toilet bowl cleaning water supply device characterized by being provided with a means.