JPH10237924A - Flush valve equipped with chemical supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flush valve equipped with a chemical supply device without separately branching a new piping and capable of being mounted even in a narrow space. SOLUTION: A branch pipe connected to the existing flush valve 4 is removed, and instead, a supply side branch pipe 15 and a drainage side branch pipe 19 are connected to the flush valve 4. A chemical storing box 20 for storing solid chemicals therein is connected between both branch pipes 15 and 19, and when water is drained off to a toilet 1, washing water stored in a pressure room P is made to flow in the chemical storing box 20 from the supply side branch pipe 15 to dissolve the solid chemicals 24 in the chemical storing box 20 in washing water. Washing water mixed with dissolved chemicals is exhausted to a discharge pipe 3 from the drainage side branch pipe 19, and it is drained off to the toilet 1 together with washing water supplied from a supply pipe 2 to the discharge pipe 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet flushing device for discharging flush water into a toilet bowl.

[0002]

2. Description of the Related Art Generally, a flush valve for discharging flush water into a toilet is connected between a supply pipe connected to a water pipe and a discharge pipe for discharging flush water supplied from the supply pipe to the toilet. ing. A piston valve is provided in the flush valve, and communication between the supply pipe and the water discharge pipe is established or cut off by the vertical movement of the piston valve. The piston valve moves up and down due to pressure fluctuation in a pressure chamber provided in the flash valve. In this pressure chamber, washing water is stored from a supply pipe through a through hole formed in the piston valve. The pressure chamber and the water discharge pipe are connected by a branch pipe. The communication between the pressure chamber and the branch pipe is established or cut off with the driving of the solenoid valve.

[0003] That is, when the solenoid valve is in a state of blocking between the pressure chamber and the branch pipe, the pressure in the pressure chamber is high,
The piston valve is in a state of shutting off between the supply pipe and the water discharge pipe. On the other hand, when the solenoid valve is in a state of communicating between the pressure chamber and the branch pipe, the cleaning water in the pressure chamber flows through the branch pipe to the water discharge pipe, so that the pressure in the pressure chamber decreases. As the pressure in the pressure chamber decreases, the piston valve moves to the pressure chamber side due to the pressure of the cleaning water on the supply side,
Communication is provided between the supply pipe and the water discharge pipe. As a result, the flush water is discharged from the supply pipe into the toilet via the water discharge pipe.

[0004]

In recent years, there has been a washing apparatus in which a solid medicine (a medicine having a washing action and an aroma action) is dissolved in washing water, and the washing water in which the medicine is dissolved is discharged into a toilet. (Japanese Utility Model Publication No. 8-009263). According to this cleaning device, the toilet is kept clean every time the cleaning water is discharged. The washing apparatus described in this publication is of a type in which washing water is stored in a washing tank, and the solid medicine is accommodated in a container separately attached to the washing tank, and the medicine is dissolved by branching a branch pipe from a water pipe. . In addition, a drain pipe is provided at the lower part of the container for draining the dissolved drug into the tank again.

[0005] However, the cleaning apparatus described in the above publication has the following problems. That is, in order to dissolve the solid drug, it is necessary to provide a supply pipe for guiding water into the container and a drain pipe for draining the dissolved drug into the tank again, so that piping assembly is troublesome. There was a problem.

In the above-mentioned flash valve,
In many cases, such a device for supplying a medicine to the toilet is provided by separately branching and connecting a dedicated pipe to the flush valve, and the assembling work to the flush valve is very troublesome, and the installation of the medicine supply device is required. However, there is a problem that it is difficult to secure a mounting space.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a drug supply device which can be attached to a small space without separately branching a new pipe. It is to provide a flash valve.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a supply pipe for supplying flush water and flush water supplied from the supply pipe are discharged into a toilet. A body connected to the water discharge pipe, a pressure chamber provided in the body, and temporarily storing cleaning water supplied from the supply pipe; and a pressure chamber provided in the body, With a change in pressure, a valve body that communicates or shuts off between the supply pipe and the water discharge pipe, a branch flow path that connects between the pressure chamber and the water discharge pipe, and a pressure chamber through the branch flow path. An actuator for communicating or shutting off between the pressure chamber and the water discharge pipe, wherein the valve body communicates between the pressure chamber and the water discharge pipe by the actuator, and the washing water in the pressure chamber flows from the branch flow path to the water discharge pipe. The supply pipe and the water discharge pipe, The flush water is discharged from the water discharge pipe into the toilet, while when the actuator shuts off the pressure chamber and the water discharge pipe, the wash water is stored in the pressure chamber and the supply pipe and the water discharge pipe are connected. The gist of the present invention is to provide a flush valve in which a gap is shut off to stop the flush water from being discharged into the toilet bowl, and a medicine accommodating chamber for accommodating a water-soluble medicine is provided in the branch flow path.

According to a second aspect of the present invention, in the first aspect of the present invention, the branch channel is a tube provided outside the body, and the medicine storage chamber is connected in the middle of the tube. That is the gist.

According to a third aspect of the present invention, in the second aspect of the present invention, a tip end opening of a pipe constituting a branch flow path on a side connected to the water discharge pipe faces a downstream side of the water discharge pipe. The point is that it is open.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, a Japanese style toilet 1 is provided with a water discharge pipe 3 through a supply pipe 2 connected to a water pipe (not shown).
Are connected. A body 5 constituting a flash valve 4 is connected between the supply pipe 2 and the water discharge pipe 3. In the present embodiment, the existing flash valve 4 is used.

A bush 7 having a piston guide hole 6 is screwed into the upper portion of the body 5 of the flash valve 4. A piston valve 8 as a valve body is housed in the bush 7 so as to be slidable up and down. When the piston valve 8 is at the upper position, communication between the supply pipe 2 and the water discharge pipe 3 is established. When the piston valve 8 is at the lower position, the space between the supply pipe 2 and the water discharge pipe 3 is shut off. A valve box 10 is connected to an upper portion of the bush 7. The lower end face of the valve box 10 and the piston valve 8
A pressure chamber P is formed between the pressure chamber P and the upper end surface. The piston 8a of the piston valve 8 has a communication hole 13 communicating between an inflow port (not shown) communicating with the supply pipe 2 and the pressure chamber P.

The valve box 10 is formed with a communication passage 14 communicating with the pressure chamber P from the lower surface to the side surface. The supply-side branch pipe 15 is connected to the communication path 14. In addition, a communication port 17 communicating with the water discharge pipe 3 is formed in a side portion of the body 5 so as to be opened.
Is closed by a blind plug 18. The blind plug 18 is fixed to the body 5 by the cap nut 11. The discharge port branch pipe 19 is connected to the blind plug 18. The discharge side branch pipe 19 communicates with the water discharge pipe 3 via the communication port 17. In addition, the distal end opening 19a of the discharge side branch pipe 19
Is open toward the downstream side of the water discharge pipe 3.

In this embodiment, a branch passage is formed by the communication passage 14, the supply branch pipe 15, the discharge branch pipe 19, and the communication port 17 of the valve box 10. That is, the communication path 14 and the communication port 17 are connected to the existing flash valve 4.
Are connected by a branch pipe (shown by a two-dot chain line in FIG. 1) composed of one pipe. In the present embodiment, the existing branch pipe is removed, and the supply side branch pipe 15 and The drain valve branch pipe 19 and the two branch pipes 15 and 19 are connected to the flush valve 4.
Connected to.

As shown in FIGS. 1 and 2, between the supply branch pipe 15 and the discharge branch pipe 19, a medicine storage box 20 as a medicine storage chamber is connected. Drug storage box 2
0 is detachably connected to both branch pipes 15 and 19 via nuts 21 and 22. An inflow port 21 a communicating with the supply side branch pipe 15 via the nut 21 is formed at an upper portion of the medicine container box 20, and a discharge port communicating with the discharge side branch pipe 19 via the nut 22 at the lower portion. 20b are formed.

The lower surface of the medicine container 20 is formed in a tapered shape whose diameter decreases downward. In addition, drug storage box 2
A plate-like net material 23 is accommodated in the inside of the cylinder. This net 2
3 engages with the inner wall of the medicine container 20, and a space S is formed between the mesh member 23 and the inner bottom surface of the medicine container 20.
A water-soluble solid drug 24 is placed on the upper surface of the mesh member 23. The solid medicine 24 has a cleaning action and an aroma action. An atmosphere opening hole 27 is formed on the side surface of the medicine container 20. A check valve 28 is provided on the end face of the supply side branch pipe 15 on the side connected to the medicine storage box 20. The check valve 28 prevents the washing water flowing into the medicine container 20 from flowing back to the supply-side branch pipe 15 side.

A pull solenoid 25 as an actuator is accommodated in the upper part of the valve box 10. A plunger rod 26 of the solenoid 25 is disposed at an intermediate portion of the communication passage 14, and the pressure chamber P and the supply-side branch pipe 15 are communicated or shut off with the expansion and contraction of the plunger rod 26. It has become. That is,
When the solenoid 25 is kept in the non-excited state, the plunger rod 26 is kept in the extended state, and the pressure chamber P is disconnected from the supply-side branch pipe 15. When the solenoid 25 is kept in the excited state, the plunger rod 26 is kept in the contracted state, and the pressure chamber P and the supply-side branch pipe 15 are kept in communication. The drive of the solenoid 25 is controlled by a controller (not shown). When the controller detects the user with a sensor (not shown), the controller measures the usage time of the user. Then, when the controller detects the user's use of the toilet,
The use state (large or small) is determined based on the use time, the solenoid 25 is excited for a predetermined time according to the use state, the plunger rod 26 is contracted for a predetermined time, and a large or small amount of flush water is put into the toilet 1. It is designed to discharge water.

Next, the operation of this embodiment will be described. When the solenoid 25 is kept in a non-excited state, the pressure chamber P is kept at a high pressure. Therefore, in this state, the piston valve 8 is held at the lower position, that is, the position where the supply pipe 2 and the water discharge pipe 3 are shut off. From this state, the solenoid 25 is controlled by the controller.
Is excited and the plunger rod 26 is contracted, the communication between the pressure chamber P and the supply-side branch pipe 15 is established. Then, the washing water stored in the pressure chamber P flows from the communication passage 14 through the supply-side branch pipe 15, and flows into the medicine container 20 from the inlet 20a. When the cleaning water in the pressure chamber P is discharged out of the pressure chamber P, the pressure in the pressure chamber P decreases, and the piston valve 8 is raised by the water pressure in the supply pipe 2. As a result, communication between the supply pipe 2 and the water discharge pipe 3 is established, and the flush water is discharged into the toilet 1.

On the other hand, the washing water that has flowed into the medicine container 20 is discharged from the discharge port 20b into the water discharge pipe 3 through the discharge side branch pipe 19. As the washing water passes through the medicine container 20, the solid medicine 24 in the medicine container 20 is dissolved in the washing water. That is, the wash water mixed with the dissolved solid medicine 24 is discharged into the toilet 1 together with the wash water supplied from the supply pipe 2 to the water discharge pipe 3.

When the controller excites the solenoid 25 for a predetermined time, the controller stops excitation of the solenoid 25 and extends the plunger rod 26. Then, communication passage 1
4 is cut off, the communication between the pressure chamber P and the communication port 17 is cut off, water flows into the pressure chamber P from the communication hole 13 of the piston 8a, and the pressure in the pressure chamber P rises. Then
The piston 8a descends, the connection between the supply pipe 2 and the water discharge pipe 3 is shut off, and the discharge of the wash water to the toilet 1 is stopped.

In the present embodiment, the following effects can be obtained by configuring the flash valve 4 as described above. -The one branch pipe connected to the existing flash valve 4 was removed, and the supply side branch pipe 15 and the drain side branch pipe 19 were connected to the flash valve 4 instead. In addition, a medicine container 20 containing a solid medicine 24 is connected between the two branch pipes 15 and 19, and at the time of water discharging operation to the toilet 1,
The washing water stored in the pressure chamber P is caused to flow from the supply side branch pipe 15 into the medicine container 20, and the solid medicine 24 in the medicine container 20 is dissolved by the washing water. Then, the washing water mixed with the dissolved drug is discharged into the discharge side branch pipe 1.
From 9, the water was discharged to the water discharge pipe 3, and was discharged into the toilet 1 together with the washing water supplied from the supply pipe 2 to the water discharge pipe 3.
As described above, in the present embodiment, the existing branch pipe is replaced with the supply-side branch pipe 15 and the discharge-side branch pipe 19, and
Simply by connecting the medicine container 20 between the two branch pipes 15 and 19, the washing water mixed with the medicine can be discharged into the toilet 1 during the water discharging operation. As a result, unlike the related art, when installing the medicine supply device, there is no need to newly branch a dedicated pipe, and the installation work and the installation space can be easily secured.

Since the medicine storage box 20 can be attached to the outside of the body 5 of the flash valve 4, the attachment / detachment work is further facilitated. The opening of the distal end of the discharge side branch pipe 19 connected to the water discharge pipe 3 is opened toward the downstream side of the water discharge pipe 3. As a result, even if a large amount of washing water flows from the supply pipe 2 to the water discharge pipe 3, it is possible to prevent the washing water from entering through the opening of the discharge side branch pipe 19 and flowing back through the branch pipe 19. This makes it possible to reliably discharge the cleaning water mixed with the chemical into the toilet 1 when the cleaning water is discharged.

Since the branch pipes 15 and 19 and the medicine storage box 20 are detachably connected via the nuts 21 and 22, the replacement of the solid medicine 24 can be easily performed. (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to the drawings. In the present embodiment,
The same members as those in the first embodiment will not be described in detail, and will be described with the same reference numerals.

As shown in FIG. 3, a cup 41 as a medicine storage chamber is provided inside the communication port 17 forming the branch flow path.
Is inserted. The bottom of the cup 41 is a water-permeable mesh 42. Further, a flange 41 a is formed integrally with the opening edge of the cup 41. The flange 41a is in contact with the opening end face of the communication port 17 via a packing 43. The contact between the flange 43 and the opening end face of the communication port 17 causes the body 5 of the cup 41 to move.
Movement to the inside is restricted. In addition, the flange 41
The flange 45 a of the blind plug 45 is in opposition to the opposite surface of “a” through the packing 44.

On the opposite side of the blind plug 45 from the flange 45a, the flange 45a of the cap nut 11 is in opposing contact. When the cap nut 11 is screwed into the body 5, the movement of the cup 41, the packings 43 and 44, and the blind plug 45 with respect to the body 5 is restricted. A communication hole 47 that communicates with the blind hole 46 is formed on the peripheral surface of the blind plug 45, and the communication hole 47 and the communication passage 14 of the valve box 10 are connected by a branch pipe 50. In the present embodiment, unlike the first embodiment, one branch pipe 50 is used. The cup 41 contains the solid medicine 24. Solid medicine 2
A coil spring 49 is housed between the blind plug 4 and the blind plug 45 via a holding plate 48. Due to the elastic force of the coil spring 49, the solid medicine 24 is constantly urged toward the mesh 42 via the pressing plate 48. In the present embodiment, the communication passage 14, the branch pipe 50, the communication hole 47 of the blind plug 45,
The blind flow path is constituted by the blind hole 46 and the communication port 17.

Next, the operation of the present embodiment will be described. The solenoid 25 is excited and the plunger rod 26
Contracts, communication between the pressure chamber P and the branch pipe 50 is established,
The cleaning water in the pressure chamber P flows into the blind plug 45 from the communication passage 14 via the branch pipe 50. As a result, the pressure in the pressure chamber P decreases, the piston valve 8 rises, and communication between the supply pipe 2 and the water discharge pipe 3 is established. As a result, flush water is discharged into the toilet 1. When the washing water flows from the supply pipe 2 to the water discharge pipe 3, a part of the washing water flows into the cup 41 from the mesh 42 of the cup 41 attached to the communication port 17. The washing water from the pressure chamber P flowing into the cup 41 and the washing water from the supply pipe 2 make the solid medicine 24
Is dissolved. Then, the dissolved medicine 24 is discharged into the toilet 1 together with the washing water.

As described above, also in the present embodiment, the same effects as in the first embodiment can be obtained. Further, in the present embodiment, since the medicine accommodating chamber (cup 41) is not exposed to the outside of the body 5, not only good appearance can be maintained, but also the amount of the solid medicine 24 dissolved in the washing water can be increased. Further, in the present embodiment, since the number of the branch pipes 50 can be reduced to one, the existing existing pipes can be used as they are for the replacement of the branch pipes 50.

In each of the above embodiments, the branch pipe 1
5, 19, and 50 may be embodied using a metal tube having flexibility. In this case, the attaching / detaching operation of the medicine storage chamber (the medicine storage box 20 and the cup 41) can be performed more easily.

[0030]

According to the first aspect of the present invention, the medicine accommodating chamber accommodating the medicine is connected in the middle of the branch pipe, and at the time of the water discharge operation to the toilet, the washing water stored in the pressure chamber is supplied to the branch pipe. , And the solid medicine in the medicine storage box is dissolved by the washing water. Then, the washing water mixed with the dissolved drug was discharged from the branch pipe to the water discharge pipe, and was discharged into the toilet together with the wash water supplied from the supply pipe to the water discharge pipe. As described above, the washing water mixed with the medicine can be discharged into the toilet using the existing branch pipe. As a result, unlike the related art, when installing the medicine supply device, there is no need to newly branch a dedicated pipe, and the installation work and the installation space can be easily secured.

According to the invention described in claim 2, according to claim 1,
In addition to the effects of the invention described in (1), since the medicine accommodating chamber can be attached to the outside of the body, the attachment / detachment work is further facilitated. According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the distal end opening of the pipe connected to the water discharge pipe forming the branch flow path is directed downstream of the water discharge pipe. And opened. As a result, even if a large amount of washing water flows from the supply pipe to the water discharge pipe, the washing water enters from the opening of the pipe,
Backflow of the pipe can be prevented. This makes it possible to reliably discharge the cleaning water mixed with the chemical into the toilet when the cleaning water is discharged.

[Brief description of the drawings]

FIG. 1 is a partial front sectional view of a flash valve according to a first embodiment of the invention.

FIG. 2 is a cross-sectional view of the medicine container in the first embodiment.

FIG. 3 is a partial cross-sectional view of a flash valve according to a second embodiment.

[Explanation of symbols]

1 ... toilet bowl, 2 ... supply pipe, 3 ... water discharge pipe, 4 ... flush valve, 5 ... body, 8 ... piston valve as valve body,
Reference numeral 14 denotes a communication path forming a branch flow path, 15 denotes a supply-side branch pipe forming a branch flow path and a pipe, 17 ... a communication port forming a branch flow path, 19 ... a discharge side branch forming a branch flow path and a pipe Tube, 20: drug storage box as drug storage chamber; 24, solid drug as water-soluble drug; 25, solenoid as actuator; 46, blind hole constituting branch flow path;
... Communication holes forming a branch flow path, 48. Cups as medicine storage chambers, 50... Branch pipes forming a branch flow path, P.

Claims (3)

[Claims] A body connected between a supply pipe for supplying wash water, a water discharge pipe for discharging the wash water supplied from the supply pipe into a toilet bowl, and a supply pipe provided in the body. A pressure chamber in which washing water supplied from a pipe is temporarily stored; and a valve body provided in the body and communicating or shutting off between the supply pipe and the water discharge pipe according to a pressure change in the pressure chamber. And a branch flow path that connects between the pressure chamber and the water discharge pipe, and an actuator that communicates or cuts off between the pressure chamber and the water discharge pipe through the branch flow path, The actuator connects the pressure chamber and the water discharge pipe, and when the washing water in the pressure chamber flows from the branch channel to the water discharge pipe, the cleaning water is supplied from the supply pipe through the communication between the supply pipe and the water discharge pipe. The flush water is discharged from the water discharge pipe into the toilet bowl, while Ri when the between the pressure chamber and the drainage tube is blocked,
In a flush valve in which flush water is stored in the pressure chamber and shuts off between the supply pipe and the water discharge pipe to stop the flush water from being discharged into the toilet, the water-soluble drug is supplied in the middle of the branch flow path. A flush valve provided with a medicine supply device, wherein a medicine accommodating chamber for accommodating the medicine is provided. 2. The flush valve according to claim 1, wherein the branch flow path is a pipe provided outside the body, and the medicine storage chamber is connected in the middle of the pipe. 3. The drug supply device according to claim 2, wherein a distal end opening of a pipe constituting a branch flow path on a side connected to the water discharge pipe is opened toward a downstream side of the water discharge pipe. Flash valve.