JP2002227273A - Water supply device, water closet equipped with water supply device, water volume controller, and disc mechanism provided in water volume controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a flush valve capable of selecting the quantity of the amount of water discharge. SOLUTION: An instantaneous discharge FHD to a water chamber 22 in the case of feces washing is made less than an instantaneous discharge FHS to the water chamber 22 in the case of urine washing. By doing this, the water chamber 22 becomes full of water in the case of urine washing in an early stage (at the elapse of time T3) after the start of washing; in the case of feces washing, water becomes full in a later stage (at the elapse of time T4) compared to the case of urine washing. As a result, in the case of the urine washing, the period of valve opening becomes shorter (from 0 to T3) and the total amount of water supplied from, the first water channel 18a to the second water channel 18b becomes a smaller such as 4.5 litters. Compared to this, the valve opening period becomes longer (from 0 to T4) in the case of feces washing, and the total amount of water (total discharge Q) supplied from the first water channel 18a to the second water channel 18b increases to 6 litters.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a water supply device,
Specifically, the valve has a water supply channel for supplying water supplied from the water supply port to the water discharge port, a valve element for opening and closing the water supply path, and a water chamber functioning as a back pressure chamber of the valve element. The present invention relates to a water supply device in which the supply channel is sometimes divided into a first channel upstream of the valve body and a second channel downstream of the valve body.

[0002]

2. Description of the Related Art In a plumbing device such as a toilet or a basin, a water supply device for guiding water from a water supply pipe, which is a water supply source, to the device is provided in various modes. For example, a flush valve that directly discharges water from a water supply pipe to a toilet, a flush water tank that temporarily stores water from a water supply pipe and then discharges water to the toilet, etc., are used as a water supply device for a toilet.

[0003] The flash valve has a mechanism for moving the valve body inside the valve by changing the pressure balance of water inside the valve, and this mechanism controls water discharge and water stoppage from the flash valve. Specifically, a water chamber in which the valve element is movable is formed in the valve, and the pressure in the water chamber is set lower than that of the water channel on the upstream side of the valve element. The valve body is seated on the valve seat and closed by returning the water chamber and the water passage on the upstream side of the valve body to an equal pressure by moving in the chamber direction to open.

In a conventional flash valve, a part of water filled in a water chamber is discharged to the outside mainly by an operation such as pressing a lever or a push button by a user, and the water chamber has a lower pressure than a water channel on an upstream side of a valve body. Create a state that becomes
Open the closed valve body. Closing of the opened valve element is realized by refilling the water chamber with water and refilling the water chamber with water.

Conventionally, water is supplied to the water chamber by providing a small hole through the valve body in advance, and the water flowing inside the valve is opened when the valve body is opened. This was done by gradually flowing into the water chamber through a small hole. According to such a replenishment method, the way of entering water from the small holes becomes uniform. For this reason, the period from the opening of the valve body to the closing of the valve body (hereinafter, referred to as a valve opening period) has been almost constant.

[0006]

However, with a flush valve in which the opening period of the valve body is almost constant, the total amount of water supplied to the toilet can be supplied only in one way. For this reason, in the conventional flush valve, when starting the supply of water to the toilet, the user could not select the amount of water to be flushed to the toilet. As a result, even when the amount of waste discharged into the toilet is small, an equal amount of water is used as when the amount of waste is large, and there has been a case where more water than necessary is used for cleaning the toilet.

On the other hand, when the lever or the like is pressed for a short period, the period during which the pressure balance in the valve is lost is shortened,
It is possible to spout a small amount of water. However,
Such an operation is complicated, and the amount of water discharged is determined by the degree of pressing of the lever or the like. Therefore, the amount of water discharged is not constant, and reliable washing of the toilet cannot be guaranteed.

[0008] Further, water-related equipment such as a toilet bowl needs to be installed in a place where a certain number or more of people gather, and at each installation place, is used by everyone regardless of age.
Therefore, the flash valve used for water surrounding equipment is
It is desirable that the apparatus can be installed in a wide range regardless of the installation conditions and that the operation is simple.

Therefore, the present invention has the following configuration to solve the above-mentioned problems and to realize a flash valve capable of selecting a certain amount of water discharge.

[0010]

Means for Solving the Problems and Action / Effect The water supply device of the present invention comprises: a supply channel for supplying water supplied from a water supply port to a water discharge port; a valve for opening and closing the supply channel; A water supply device having a water chamber functioning as a back pressure chamber, wherein when the valve body is closed, the supply water path is divided into a first water path upstream of the valve body and a second water path downstream of the valve body, A valve opening mechanism that opens the valve body by allowing water in the water chamber to flow out to the second water channel through a sub water channel that communicates the water chamber with the second water channel; and water is supplied from the first water channel to the water chamber. A water chamber replenishment mechanism for replenishing water, and a valve closing mechanism for closing the valve body by stopping outflow of water through the sub-channel and replenishing water to the water chamber by the water chamber replenishment mechanism. In the water supply device having the above, the opening is a period from when the valve element is opened to when it is closed. Period, and summarized in that with a valve opening period adjusting means for adjusting the one period of the pre-defined period of plurality of ways.

The water supply apparatus of the present invention has a supply channel for supplying water supplied from the water supply port to the water discharge port, and a valve for opening and closing the supply channel. The supply channel is closed by closing the valve. It is divided into a first waterway on the upstream side and a second waterway on the downstream side. The valve opening mechanism causes the water in the water chamber to flow through a sub-channel connecting the water chamber and the second channel, thereby opening the valve body at a lower pressure than the first channel. The valve closing mechanism stops the outflow of water through the sub-water channel and closes the valve body by replenishing the water chamber with the water chamber replenishing mechanism. The valve opening period adjusting means adjusts the valve opening period of the valve body to one of a plurality of predetermined periods. By controlling the valve opening period by the valve opening period adjusting means, the total amount of water supplied from the first water channel to the second water channel is controlled to one of a plurality of predetermined water volumes. It is possible to do. Therefore, in a water supply device provided with a valve body that moves by the pressure difference between the water chamber and the first water passage, water can be discharged with a plurality of water volumes.

It is also preferable that the valve opening period adjusting means is means for adjusting the valve opening period by a mechanical structure. This makes it possible to install the water supply device capable of discharging a plurality of amounts of water even in a place where there is no power supply, thereby improving versatility.

[0013] There is provided a replenishing water amount adjusting means for adjusting a replenishing water amount to be replenished to the water chamber per unit time by the water chamber replenishing mechanism in a plurality of ways. It is also desirable to use a means for adjusting the valve opening period to one of a plurality of periods, since the total amount of discharged water can be reliably controlled.

[0014] The replenishing water amount adjusting means is a means having a communication flow path which is a flow path connecting the first water path and the water chamber, and an opening / closing amount adjusting valve provided in the communication flow path. By adjusting the amount of opening and closing of the communication flow path by the control valve, the flow rate per unit time in the communication flow path may be adjusted to one of a plurality of flow rates. As a method of adjusting the flow rate per unit time in the communication flow path to one of a plurality of flow rates, an opening / closing amount of the communication flow path by an opening / closing amount control valve is adjusted to one of a plurality of predetermined opening / closing rates. It is possible to consider a configuration including an opening / closing amount selection unit for selecting the amount, and adjusting the opening / closing amount of the opening / closing amount control valve based on the opening / closing amount selected by the opening / closing amount selection unit.

Further, the replenishing water amount adjusting means is constituted by using a disk plate having at least one hole formed therein, and an area where the hole formed in the disk plate and the communication flow path are overlapped is determined by an opening / closing amount selection unit. It is also possible to provide a means for adjusting the flow rate per unit time in the communication channel to one of a plurality of flow rates by changing the flow rate based on the opening / closing amount selected by (1). In this case, the disc plate is provided with two or more holes having different opening areas, and the two or more holes are selectively overlapped with the communication flow path based on the opening / closing amount selected by the opening / closing amount selection unit. By combining the flow rates, the flow rate per unit time in the communication flow path may be adjusted to one of a plurality of flow rates. This makes it possible to adjust the replenishment water amount only by changing the hole that overlaps the communication flow path, and easily adjust the water discharge amount of the water supply device to various water amounts.

The overlapping area of the disk plate and the communication flow path can be changed by rotating the disk plate, and three or more holes having different opening areas are provided on the disk plate in the order of the opening areas. You may. In this case, the water discharge amount of the water supply device can be changed in three or more stages in descending order of the water amount.

The disk plate is configured to be detachable, and the shape of the disk plate and the communication flow path in which the disk plate is disposed are changed so that the disk plate can be disposed even when the disk plate is rotated or turned over. Formed into
At a predetermined position of the disc plate, a combination of two or more holes having different opening areas is provided as a first combination,
At the position corresponding to the predetermined position when the disk plate is rotated or turned over, two or more holes having different opening areas different from the first combination are provided as a second combination at a position corresponding to the predetermined position. It is also suitable. This makes it possible to realize two or more kinds of water discharge amounts in different combinations simply by changing the arrangement of the disk plates, and it is possible to easily cope with the difference in the operation direction for each country. In this case, by arranging two or more holes in the second combination in the order of the opening area of the two or more holes in the first combination, two or more water discharge amounts of different combinations can be operated. It can be realized while making the direction common.

A plurality of communication passages, each having a different cross-sectional area, are provided through a valve element, and each of the communication passages is a passage for communicating the first water passage and the water chamber. It is also preferable to use a means for adjusting the flow rate per unit time in the communication flow path to one of a plurality of flow paths by making the communication flow paths different. In this case, by changing the communication flow path to be used, various amounts of water can be spouted from the spout.

It is also desirable to provide a selection member for selecting one or more communication passages to be used from the plurality of communication passages, since a desired water discharge amount can be freely selected. Also, if an identification means for identifying a difference in cross-sectional area of the communication flow path is provided,
A desired water discharge amount can be easily and reliably selected.
In addition, the selection member is a cover that covers the communication flow path, and the cover is configured to be detachable for each communication flow path covered by the cover, and the identification unit sets the appearance of each cover, It is also possible to provide a means for identifying a difference in the cross-sectional area of the communication channel by making the communication channel different in accordance with the size of the cross-sectional area. It is also desirable that the communication flow path be a through hole that penetrates through the valve body and communicates the first water path and the water chamber in that a simple structure can realize various water discharge amounts.

An outflow period adjusting means for adjusting the outflow period during which the water in the water chamber flows out to the second waterway through the sub-waterway by the valve opening mechanism to a plurality of predetermined periods is provided. It is also preferable that the valve opening period is adjusted to one of a plurality of periods in accordance with the contents of adjustment by the outflow period adjusting unit. While the water in the water chamber is flowing into the second water path through the sub-water path, the water chamber is not filled with water, so the pressure in the water chamber is maintained at a lower pressure than the first water path, and the valve body is kept in the open state. Dripping. Therefore, various water discharge amounts can be realized by adjusting the valve opening period of the valve body using the outflow period adjusting means. For example, it can be considered that the valve opening period adjusting means is configured such that the longer the outflow period adjusted by the outflow period adjusting means is, the longer the valve opening period is.

A valve opening mechanism is provided with a sub-channel opening / closing valve provided in the middle of the sub-channel, and an opening adjustment for opening the sub-channel opening / closing valve at one of a plurality of predetermined openings. And a sub-channel opening / closing valve closing means for closing the sub-channel opening / closing valve opened by the operation of the opening degree adjusting operation unit. By changing the period until the valve closes according to the opening degree of the sub-channel opening / closing valve based on the operation of the opening degree adjusting operation unit, the period during which the water in the water chamber flows out to the second water path is defined in advance. The adjustment may be performed during one of a plurality of periods.

As at least a part of the sub-channel, an external communication channel, which is a channel connecting the water chamber and the second channel outside the pipe, is provided, and a sub-channel opening / closing valve is provided in the middle of the external communication channel. It is also preferable to provide them. With this configuration, the valve element and the vicinity of the water chamber do not have a complicated configuration in order to discharge a plurality of amounts of water.

The valve opening mechanism includes a start operation section which is an operation section for opening the valve element, and a valve opening period adjusting means is provided with a plurality of valve opening periods based on the operation of the start operation section. It is also desirable to use means for adjusting during one of the periods described above in that the start of water discharge and the adjustment of the total amount of water discharged are realized by one operation. Specifically, a configuration can be considered in which the opening / closing amount adjustment operation of the opening / closing amount control valve based on the opening / closing amount selected by the opening / closing amount selection unit is realized by operating the start operation unit. Further, the opening operation of the sub-channel opening / closing valve based on the operation of the opening adjustment operation unit may be realized by the operation of the activation operation unit.

[0024] The start operation unit is instructed by one operation to start the supply of water from the first water channel to the second water channel,
An operation unit for instructing one of a plurality of total water amounts defined as a total amount of water supplied to the second water passage from the first water passage, and one of the ones designated by the operation of the activation operation unit. It is also desirable to adjust the valve opening period according to the total amount of water since the operation by the user can be easily understood. Specifically, the water chamber replenishment mechanism is provided with a replenishing water amount adjusting means for adjusting a replenishing water amount to be replenished to the water chamber per unit time in a plurality of ways, and the replenishing water amount adjusting means is instructed by the operation of the starting operation unit. Means may be such that the larger the total amount of water is, the smaller the amount of replenishing water supplied to the water chamber per unit time is. In addition, an outflow period adjusting unit that adjusts a period during which water in the water chamber flows out to the second water passage through the sub-water passage by the valve opening mechanism to a plurality of predetermined periods is provided. A means may be used for adjusting the outflow period during which the water in the water chamber flows out to the second water channel becomes longer as the one total water amount instructed by the operation of the activation operation unit is larger.

It is also preferable that the start-up operation section pre-determines two types of water amounts for large flushing and small flushing as the flushing water volume for the toilet. In addition, the above water supply device,
It is also desirable that the device be connected between a water supply pipe for supplying water from a water supply source and a toilet. In this case, the water supply device can be used for flushing a toilet. For example, a flush valve provided in a public space in consideration of continuous flushing of a toilet can realize a size switching function, thereby conserving water. Further, the invention can be grasped as a flush toilet provided with the above-mentioned water supply device.

The present invention can be understood as a water amount control device. That is, the water amount control device of the present invention includes a supply water channel that supplies water supplied from a water supply port to a water discharge port, a valve body that opens and closes the supply water channel, and a water chamber that functions as a back pressure chamber of the valve body. A water flow control for controlling the amount of water supplied by the water supply device, wherein the water supply passage is connected to a water supply device that is divided into a first water passage upstream of the valve body and a second water passage downstream of the valve body when the valve body is closed. A valve opening mechanism that opens the valve body by allowing water in the water chamber to flow out to the second water passage through a sub-water passage that communicates the water chamber and the second water passage; and the first water passage. A water chamber replenishing mechanism for refilling the water chamber with water,
A valve closing mechanism for closing the valve body by stopping the outflow of water through the sub-water channel and replenishing water to the water chamber by the water chamber replenishing mechanism, and the valve body is opened. The gist of the invention is to provide a valve-opening period adjusting means for adjusting a valve-opening period, which is a period from when the valve is closed until the valve is closed, to one of a plurality of predetermined periods.

According to the water amount control device having the above configuration,
By connecting this water amount control device to various water supply devices having valve bodies that open and close by moving in the direction of the water chamber, it becomes possible to discharge water from the water supply device with a plurality of water amounts. In such a water amount control device, the valve opening mechanism is a mechanism including a start operation unit that is an operation unit for opening the valve body, and based on the operation of the start operation unit, a valve opening period is set to a plurality of periods. As a means to adjust during one of the periods,
The water discharge amount can be adjusted according to the operation content of the start operation unit.

The present invention can be understood as a disk mechanism provided in the above-mentioned water amount control device. In other words, if a disk mechanism that adjusts the amount of water supplied to the water chamber per unit time by the water chamber replenishment mechanism in a plurality of ways is used, the function of realizing a plurality of types of water discharge amounts can be maintained only by replacing the disk mechanism. be able to. Also, in the case where the disc mechanism is configured to adjust the period during which the water in the water chamber flows out to the second water channel through the sub-channel by the valve opening mechanism to a plurality of predetermined periods, the disk mechanism may be similar to the above. The function of realizing a plurality of types of water discharge amounts can be maintained only by replacing the water.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the structure and operation of the present invention described above, an embodiment of a water supply apparatus of the present invention will be described below. FIG. 1 is an explanatory diagram showing a schematic cross section of a flash valve 10 according to a first embodiment of the present invention.

The flush valve 10 is a valve directly connected to a water supply, which is connected between a predetermined water supply source and a flush toilet which is commonly used for stool and urine. According to such a water supply directly connected valve, when the toilet is washed once after the toilet is washed (hereinafter, referred to as continuous washing), the accumulation of water in the tank like a washing water tank is prevented. A sufficient amount of water can be supplied to the toilet without waiting. For this reason, the flush valve 10 is mainly used for flush toilets and the like of public facilities frequently used by many people.

As shown in FIG.
Comprises a resin tube 12, which is provided with a water supply port 14 connected to a water supply pipe (not shown) connected to a predetermined water supply source, and water supplied from the water supply port 14. A water outlet 16 for discharging is provided. For this reason, from the water supply port 14 to the water discharge port 1
A hollow portion as a water passage is formed in the interior of the tube 12 up to 6. The spout 16 is connected to a flush water supply hole provided in the flush toilet.

As shown in FIG. 1, the hollow portion is provided with a water supply port 14.
After being extended for a while in a substantially horizontal direction, the shape is formed in a substantially vertical direction where the water discharge port 16 is located. The hollow portion before going in the substantially vertical direction is formed in a substantially cylindrical shape having a wide cross-sectional area, and a resin valve body 20 is disposed in this substantially cylindrical space. This valve body 20
A water chamber 22 large enough to allow the valve body 20 to enter is formed above.

FIG. 1 shows a state where the valve body 20 is closed. That is, in the state shown in FIG. 1, the water is filled in the water chamber 22 above the valve body 20 and in the first water passage 18 a upstream of the closed valve body 20. In this state, the pressures in the water chamber 22 and the first water passage 18a are equal. On the other hand, considering the balance of the force in the opening and closing direction (vertical direction) of the valve element 20, the pressure receiving area (the area of the top 20c) of the valve element 20 on the water chamber 22 side is equal to the pressure receiving area on the first water passage 18a side of the valve element 20. It is larger than the area (the area of the sleeve 20d). Therefore, the valve body 20 receives a force as a whole in the valve closing direction (downward direction shown in FIG. 1).

For this reason, when the valve body 20 is closed, as shown in FIG.
A rubber packing 21 mounted on the outer periphery of the step portion 20 a makes close contact with the seat portion 13 protruding from the inner bottom wall of the tube 12. In addition, the upper part of the side surface 20b of the valve body 20 is
2 is slidably and water-tightly in contact with a substantially cylindrical side wall 12a in a seal member such as U packing.

The water chamber 22 has a volume of about 25 cc when the valve body 20 is closed. When the valve body 20 moves into the water chamber 22, the valve body 20 is opened. That is, when the valve body 20 slides upward along the inner wall of the pipe body 12, the step portion 20a separates from the seat portion 13 and the water supply port 14
And the water discharge port 16 communicate with each other via a gap between the step portion 20a and the seat portion 13. By this communication, a supply channel 18 for supplying water supplied from the water supply port 14 to the water discharge port 16 is formed in the pipe 12, and water from the water supply port 14 passes through the supply water path 18 to the water discharge port 16. Supplied. This water supply path is shown by a white arrow in FIG.

As shown in FIG. 1, the supply channel 18 includes a first channel 18a and a second channel 18b. First channel 1
Reference numeral 8a denotes a water passage on the upstream side of the joint between the step portion 20a and the seat portion 13 when the valve body 20 is closed. The second water channel 18b is a water channel in which the inflow of water from the first water channel 18a is prevented by closing the valve body 20. Further, when the valve element 20 is opened,
8, between the first waterway 18a and the second waterway 18b,
Main waterway 18 that communicates between first waterway 18a and second waterway 18b
c is formed.

A mechanism for opening and closing the valve body 20 will be described. When the valve body 20 shown in FIG. 1 is in the closed state, the first water passage 18a and the water chamber 22 are filled with water from the water supply port 14, and the pressure in the first water passage 18a and the water chamber 22 become substantially equal. I have. From this state, when the water in the water chamber 22 flows out of the second water path 18b through the water inlet path 72A and the water outlet path 72B by the action of the valve opening mechanism ST described later, the water filled in the water chamber 22 is formed. Flows into the second water passage 18b at substantially atmospheric pressure at a stretch. As a result, the pressure balance between the water chamber 22 and the first water passage 18a is broken, the pressure in the water chamber 22 becomes lower than that in the first water passage 18a, and the valve body 20 is opened.

Water from the first water passage 18a urged by the water pressure from the water supply source flows into the gap formed between the step portion 20a and the seat portion 13 by opening the valve body 20.
Thereby, the supply of water from the first water channel 18a to the main water channel 18c and the second water channel 18b is started. Further, when water flows below the raised valve body 20, the pressure receiving area on the lower side of the valve body 20 becomes larger than when the valve is closed, and the valve body 2
0 receives a strong force in the valve opening direction (upward direction shown in FIG. 1) as a whole. Accordingly, the valve body 20 resists the close contact force with the inner wall of the tube body 12 and rises until the top portion 20c comes into contact with the projecting portion 22a projecting slightly downward from the end of the top wall of the water chamber 22.

The water supply port 14 is opened with the opening of the valve body 20.
Some of the water that has flowed into the first water channel 18a from the
Before reaching the gap between the first water passage 18a and the seat portion 13, it branches upward and flows into the water inlet passage 32A formed in the middle of the first water passage 18a. The water flowing into the water inlet channel 32A is supplied to the water chamber 2 through the water outlet channel 32B by the action of a water chamber supply mechanism HK described later.
Water is supplied to the water chamber 22 in a state where the outflow of water from the second to the second water passage 18b is prohibited.

As the water is gradually replenished into the water chamber 22, the pressure in the water chamber 22 gradually increases, and the force in the valve closing direction (downward direction shown in FIG. 1) is applied to the valve body 20. Is added. For this reason, the valve body 20 moves gradually downward, and the flowing water cross-sectional area of the supply channel 18 gradually decreases. When the water chamber 22 is filled with water, the rubber packing 21 attached to the step 20a is pressed against the seat 13 by a downward force applied to the top 20c of the valve body 20. This allows
The valve body 20 is closed, and the water chamber 22 and the first water channel 1
8a again becomes equal pressure.

Next, a valve opening mechanism ST for opening the closed valve element 20 and an open valve element 20
The water chamber replenishing mechanism HK and the valve closing mechanism ED, which are mechanisms for closing the valve, will be described with reference to FIGS. Valve opening mechanism ST, water chamber replenishment mechanism HK, and valve closing mechanism E
D is a mechanism constituted by a combination of a plurality of mechanical parts. Therefore, first, details of each component constituting these mechanisms will be described.

As shown in FIG. 1, inside the tube 12
By penetrating from the upper wall of the water chamber 22 to the top surface 12b above the upper wall, a through passage 72Aa is formed. The cover 24 covering the top surface 12b has a
A through-path 72Ab that is continuous with Aa and penetrates the inside of the lid 24 in a substantially U-shape is formed. This through passage 72Aa
The water inlet channel 72A is constituted by the continuation of the through channel 72Ab. The water inlet channel 72 </ b> A allows the water chamber 22 to communicate with the concave portion 12 c formed in the upper part of the tube body 12 and covered by the lid 24.

The through passage 72Ab is connected to the lid 2 in FIG.
4 is formed on the right side of the center. on the other hand,
On the lid 24 on the opposite side (left side in FIG. 1) from the through-path 72Ab, a through-path 72Ba penetrating in a substantially L-shape from the bottom surface of the lid 24 covering the recess 12c to the side surface of the lid 24. Is formed. One end of a connecting pipe 17 having an internal flow path 72Bb is connected to a side surface of the lid 24 in which the through passage 72Ba is formed, using a nut 19a.
The other end of the connecting pipe 17 is connected to the second water passage 18b and the nut 1
9b. The water passage 72B is formed by the continuation of the through passage 72Ba and the internal passage 72Bb. The water passage 72B allows the recess 12c to communicate with the second water passage 18b. The water inlet channel 72A and the water outlet channel 72B correspond to the "sub-channel" in the claims.

As shown in FIG. 1, a water inlet 32A penetrating from the upper wall of the first water passage 18a to substantially the center of the concave portion 12c above the upper wall is provided inside the pipe 12. ,
A water discharge passage 32B is formed that extends vertically from the vicinity of the approximate center of the recess 12c to the water chamber 22. The communication channel 32 that connects the first water channel 18a and the water chamber 22 through the recess 12c by the water inlet channel 32A and the water outlet channel 32B.
Is configured.

In the concave portion 12c covered by the lid 24, in order from the bottom, an opening / closing amount control valve mechanism 36 comprising a lower disk plate 36a, an upper disk plate 36b and a moving body 36c, a partition member 15, and a lower disk plate 76a. , An auxiliary disc opening / closing valve mechanism 76 composed of an upper disc plate 76b, and the like. In the first embodiment, a substantially cylindrical ceramic disk is used as the lower disk plate 36a, the upper disk plate 36b, the lower disk plate 76a, and the upper disk plate 76b.

In the recess 12c, the center of the lid 24, the upper disk plate 76b, the lower disk plate 76a, the partition member 15 and the upper disk plate 36b is penetrated.
A substantially cylindrical support rod 33b is inserted. The lower end of the support bar 33b is loosely engaged with a moving body 36c arranged in the upper disk plate 36b.

The handle 3 is provided at the upper end of the support rod 33b.
3a is mounted. With this attachment, the handle 33
a and the support bar 33b are integrated, and the support bar 33b can rotate with the operation of the handle 33a. A return mechanism 33c is mounted on the top surface of the lid 24 to return the rotated support rod 33b to a state before rotation by the elastic force of the built-in leaf spring 33d. These handles 3
The operation unit 33 of the flash valve 10 is configured by 3a, the support rod 33b, and the return mechanism 33c.

FIG. 2 shows the shape of each member housed or inserted in the recess 12c. As shown in FIG. 2, a substantially circular opening is provided at the center of the bottom surface in the cylindrical concave portion 12 c formed in the tube 12. This substantially circular opening represents the end of the above-described water inlet channel 32A. Also, the recess 12c
The substantially U-shaped opening provided around the center of the bottom surface inside,
The start point of the above-mentioned flood channel 32B is shown. In addition, the above-described through path 72Aa is formed adjacent to the concave portion 12c.

The lower disk plate 36a initially accommodated in the recess 12c has a substantially circular hole passing through the lower disk plate 36a, and one inflow hole 36aI located at the center of the lower disk plate 36a, Eight outflow holes 36aO1 to 36aO8 are provided slightly inside the outer periphery of the disk plate 36a.

The upper and lower surfaces of the lower disk plate 36a are shown in FIG.
(A) and (B) show these respectively. The inside diameter of the inflow hole 36aI is substantially the same as the inside diameter of the water inlet channel 32A extending to the bottom of the recess 12c. On the other hand, eight outflow holes 36a
The inner diameters of O1 to 36aO8 are different from each other.
Specifically, the inner diameter of the outflow hole 36aO1 is about 0.6 mm,
The inner diameter of the outflow hole 36aO2 is about 1 mm, and the outflow hole 36aO3
Has an inner diameter of about 1.3 mm, an inner diameter of the outflow hole 36aO4 is about 1.6 mm, an inner diameter of the outflow hole 36aO5 is about 0.8 mm,
The inner diameter of the outflow hole 36aO6 is about 1.2 mm, and the outflow hole 36a
The inside diameter of O7 is about 1 mm, and the inside diameter of outflow hole 36aO8 is about 1.6 mm. Thus, the lower disk plate 3
6a has outflow holes 36aO1 having six types of opening areas.
~ 36aO8 are formed.

The eight outflow holes 36aO1 to 36aO8 are:
The holes are arranged such that the distances r between centers of adjacent holes are substantially equal. Further, as shown in FIG. 3A, the outflow holes 36aO1 to 36aO8 are formed along the outer periphery of the lower disk plate 36a in a clockwise direction when viewed from above, in the direction of the outflow holes 36aO1, 36aO2, 36aO3. , Outflow hole 36aO4, outflow hole 36aO5, outflow hole 36aO
6, outflow holes 36aO7, and outflow holes 36aO8.

That is, the outflow hole 36aO1 (inner diameter 0.6 m
m), outflow hole 36aO2 (inner diameter 1 mm), outflow hole 36a
O3 (1.3 mm inner diameter), outflow hole 36aO4 (1.3 mm inner diameter)
6 mm), which are continuous in a clockwise direction, are arranged in the order of the opening area. In addition, the outflow hole 36
Two holes, aO5 (inner diameter 0.8 mm) and an outlet hole 36aO6 (inner diameter 1.2 mm), which is a hole next to the outlet hole 36aO5, are arranged in the clockwise direction in the order of the size of the opening area. ing. Further, two outflow holes 36aO7 (inner diameter 1 mm) and an outflow hole 36aO8 (inner diameter 1.6 mm) which is a hole next to the outflow hole 36aO7 are also arranged clockwise in the order of the opening area. Are arranged.

When the lower disk plate 36a is housed in the recess 12c, the inflow hole 36aI overlaps the end of the water inlet 32A on the bottom of the recess 12c (see FIG. 1). At this time, a substantially U-shaped flood channel 3 is formed on the bottom surface of the concave portion 12c.
The start end of 2B overlaps with three adjacent holes among the eight outflow holes 36aO1 to 36aO8. This overlapping state will be described later in detail.

The lower disk plate 36a is set slightly apart from the lower end of the support rod 33b (see FIG. 1). The lower disk plate 36a is the upper disk plate 3 when the lid 24 is closed.
6b, the partition member 15, the lower disk plate 76a, the upper disk plate 76b, and the like are fixed at a predetermined position by a pressing force from above via the upper disk plate 76b. Thus, the lower disk plate 36a
It is configured not to move by operation of the operation unit 33 including the handle 33a, the support bar 33b, and the return mechanism 33c.

As shown in FIG. 2, an upper disk plate 36b having a columnar shape substantially similar to that of the lower disk plate 36a overlaps the upper surface of the lower disk plate 36a. The top and bottom surfaces of the upper disk plate 36b are shown in FIGS. 4A and 4B, respectively. As shown in FIG. 4, near the center of the upper disk plate 36b, an opening 3 penetrating vertically through the upper disk plate 36b.
6bE is formed. The support rod 3 is provided in the opening 36bE.
3b is inserted. The opening 36bE is formed to have a slightly larger diameter than the outer diameter of the support rod 33b to be inserted.
Accordingly, the movement of the support bar 33b accompanying the operation of the handle 33a is transmitted to the upper disk plate 36b, and the upper disk plate 3b is moved.
6b does not rotate.

A part of the bottom surface of the upper disk plate 36b is
As shown by the solid line in FIG. 2B and the broken line in FIG. 2, it is recessed to a substantially fan-shaped shape to a predetermined depth. This concave portion is called a concave portion 36bK. The concave portion 36bK is formed over a range including two adjacent holes among the eight outflow holes 36aO1 to 36aO8 described above.
For example, when the upper disk plate 36b is overlaid on the lower disk plate 36a in the state shown in FIG. 2, the two holes of the outflow hole 36aO2 and the outflow hole 36aO3 are covered with the concave portion 36bK.

As shown in FIG. 4B, a convex portion 36bT is formed on the upper surface (recessed bottom surface) of the concave portion 36bK so as to project from the upper surface toward the bottom surface of the upper disk plate 36b. The protrusion 36bT is formed over a range w corresponding to a rotation range of the moving body 36c described later.

When the lid 24 is closed, an upper pressure is applied to the upper disk plate 36b via the partition member 15, the lower disk plate 76a, the upper disk plate 76b, and the like.
For this reason, the bottom surface of the upper disk plate 36b is in close contact with the upper surface of the lower disk plate 36a with almost no gap. As described above, the upper disk plate 36b and the lower disk plate 36a overlap with each other, so that the upper surface of the lower disk plate 36a and the concave portion 36bK
Is formed (hereinafter, this region is referred to as a concave region).

A moving body 36c made of resin is arranged in the concave area. As shown in FIG. 2, the moving body 36c has an engaging projection 36cK which is a part protruding upward on the upper surface thereof.
Is provided. On the other hand, at the lower end of the support bar 33b, a support bar 33 is provided.
A notch 33bK is formed in a substantially V-shape over a range of about 45 ° from the center of b. The support bar 33b and the moving body 36c are housed in the concave portion 12c such that the engagement protrusion 36cK enters the notch 33bK.

As shown in FIG. 2, a groove 36cM, which is a concave portion in an arc shape, is formed on the upper surface of the moving body 36c at a position slightly separated from the engaging projection 36cK. The moving body 36c is housed in the recess area such that the groove 36cM is loosely fitted to the projection 36bT in the recess 36bK.

As described above, two adjacent ones of the eight outflow holes 36aO1 to 36aO8 exist in the concave region. The moving body 36c closes one of these two holes with the cover 36cH at the tip thereof as the support rod 33b rotates. In order to fulfill this function, the cover 36cH is provided with an outflow hole 36aO4 or an outflow hole 36aO4 which is the largest diameter outflow hole provided in the lower disk plate 36a.
8 (both circular with an inner diameter of 1.6 mm). The manner in which the moving body 36c operates with the rotation of the support bar 33b will be described later for the sake of convenience.

As shown in FIG. 2, a rubber partition member 15 overlaps the upper surface of the upper disk plate 36b. In the vicinity of the center of the partition member 15, an opening 15e vertically penetrating the partition member 15 is formed. The support bar 33b is inserted into the opening 15e. The opening 15e is formed in the same manner as the opening 36bE of the upper disk plate 36b.
3b is slightly larger than the outer diameter. Therefore,
The movement of the support bar 33b accompanying the operation of the handle 33a is not transmitted to the partition member 15, and the partition member 15 does not rotate.

The partition member 15 has a columnar shape having substantially the same diameter as the inner diameter of the concave portion 12c. A groove 15 a having a predetermined depth is formed on the outer peripheral side surface of the partition member 15.
An O-ring 42 is fitted in 5a. When the partition member 15 is stored in the recess 12c, the O-ring 42 fitted in the groove 15a comes into close contact with the inner peripheral wall of the recess 12c.
Therefore, water does not pass between the side surface of the partition member 15 and the inner peripheral wall of the concave portion 12c.

On the upper surface of the partition member 15, an opening 76aE having the same diameter as the opening 15e of the partition member 15 is provided near the center thereof.
Are overlapped via the O-ring 40. The inner diameter of the O-ring 40 is
Smaller than the inner diameter of the O-ring 40 (the O-ring 40).
The difference between the outer diameter and the inner diameter of the support rod 33b is equal to or larger than the clearance formed between the opening 15e or the opening 76aE and the support rod 33b. Therefore, the lid 24 is closed and the lower disc plate 7 is closed.
When a pressure contact force is applied to the O-ring 40 from above, the O-ring 40 forms a gap between the opening 15e of the partition member 15 and the support rod 33b and the opening 76aE of the lower disk plate 76a and the support rod 33b.
The gap between the watertight. Thus, the partition material 15
And the O-ring 40, the opening / closing amount adjusting valve mechanism 36 disposed below the partition member 15 and the sub-channel opening / closing valve mechanism 7 disposed above the partition member 15.
6 is shut off.

As shown in FIG. 2, the lower disk plate 76a
Are the lower disk plate 36a and the upper disk plate 36b
And has an opening 76aE near its center. Also, the lower disk plate 76a
The groove 76a having the same width as the inner diameter of the opening 76aE extends over a range slightly shorter than the diameter of the lower disk plate 76a.
M is provided. FIGS. 5A and 5B show the shapes of the upper surface and the lower surface of the lower disk plate 76a, respectively.

The upper surface of the lower disk plate 76a is
As shown in FIG. 7, an upper disk plate 76b having a substantially similar cylindrical shape to the lower disk plate 76a overlaps. The top and bottom surfaces of the upper disk plate 76b are shown in FIG.
(A) and (b) show. As shown in FIGS. 2 and 6,
Near the center of the upper disk plate 76b, the upper disk plate 76
An opening 76bS penetrating vertically through b is formed. The opening 76bS is formed to have substantially the same diameter as the outer diameter of the support rod 33b to be inserted. By inserting the support bar 33b into the opening 76bS and bonding the side surface of the support bar 33b to the inner surface of the opening 76bS, the upper disk plate 76b is integrated with the support bar 33b. Accordingly, the upper disk plate 76b rotates with the rotation of the support bar 33b due to the operation of the handle 33a.

Further, around the opening 76bS, four substantially circular flow holes 76bR1 penetrating the upper disk plate 76b.
To 76bR4 are provided at equal intervals. Each circulation hole 7
The inner diameters of 6bR1 to 76bR4 are all the same, and take a value of about 2 mm in inner diameter.

Returning to FIG. 2, the description will be continued. After the upper disk plate 76b integrated with the lower disk plate 76a and the support rod 33b is housed in the recess 12c, the support rod 33b
Then, the lid 24 is attached via the O-ring 41. This mounting is performed by a through hole 24 e formed near the center of the lid 24.
After the support rod 33b is passed through the tube 12, the lid 24 is fitted to the tube 12.

Lower disk plate 76a, upper disk plate 76b
And a groove 76aM of the lower disk plate 76a and a flow hole 76 of the upper disk plate 76b when the lid 24 is mounted.
The positional relationship between bR1 to R4 and the through path 72Ab and the through path 72Ba of the lid 24 will be described. When the lower disk plate 76a, the upper disk plate 76b, and the lid 24 are mounted in the state shown in FIG. 2, the positional relationship between the lower disk plate 76a, the upper disk plate 76b, and the lid 24 is as shown in FIG. State.

That is, when the upper disk plate 76b is overlaid on the lower disk plate 76a, the grooves 76aM are formed between the flow holes 76bR1 and 76bR2, and between the flow holes 76bR3 and 76bR3.
6bR4. Thereby, the groove 76aM
Are not overlapped with any of the flow holes 76bR1 to R4.

When the lid 24 is attached to the tube 12,
The outlet 72AbO of the through passage 72Ab is connected to the flow hole 76bR1.
Is located on an arc locus connecting the centers of the through holes 72bR2 and the center of the through hole 76bR2.
It is located on an arc locus connecting the centers of R3 and the flow hole 76bR4. That is, the outlet 72AbO and the inlet 72BaI
Are not overlapped with any of the flow holes 76bR1 to R4.

The relationship between the lid 24 and the lower disk plate 76a is described with reference to the through-hole 72Ab formed in the lid 24.
Outlet 72AbO and through-hole 72Ba inlet 72Ba
I are both grooves 76aM across the upper disk plate 76b.
Located on top. In addition, the entrance 72AbI of the penetration path 72Ab
Is combined with the through passage 72Aa facing the surface 12b of the recess 12c, thereby forming the water inlet passage 72A.

After the lid 24 is mounted in this manner, the return mechanism 33c and the handle 33a are mounted on the support rod 33b. On the upper surface of the handle 33a, the letters "large washing" are transcribed at the tip of the clockwise arrow, and the letters "small washing" are transcribed at the tip of the counterclockwise arrow. This means that, by operating the handle 33a, a large amount of cleaning water is supplied to the flush toilet through the spout port 16 for large cleaning and a small amount of cleaning water for small cleaning.

The details of each component constituting the flash valve 10 have been described above. This flash valve 1
0, the operation unit 33 including the handle 33a, the support bar 33b, and the return mechanism 33c;
b and a lower disc plate 76a, a sub-channel opening / closing valve mechanism 76, a water inlet 72A including a through channel 72Aa and a through channel 72Ab, and a water channel 72B including a through channel 72Ba and an internal channel 72Bb are closed. Corresponds to a valve opening mechanism ST that is a mechanism for opening the valve.

That is, when the handle 33a is operated in either the large washing or the small washing direction, the support bar 33b and the upper disk plate 76b integrated with the support bar 33b rotate in this operation direction. This upper disk plate 76b
, One of the four communication holes 76bR1 to 76bR4 overlaps with both the outlet 72AbO of the through passage 72Ab and the groove 76aM of the lower disk plate 76a, and the other one is connected to the inlet of the through passage 72Ba. 72BaI
And the groove 76aM of the lower disk plate 76a. As a result, the water chamber 22 and the water inlet channel 72A in which water is stored, and the atmospheric pressure water outlet channel 72 in which no water is stored.
B and the flow holes 76bR1 to 76b of the upper disk plate 76b.
The bR4 and the lower disk plate 76a communicate with each other via the groove 76aM. Accordingly, the water accumulated in the water chamber 22 and the water inlet channel 72A passes through the upper disk plate 76b and the lower disk plate 76a, flows into the water outlet channel 72B, and then passes through the inside of the connecting pipe 17 to be in the second water channel. 18b. As a result, the valve body 20 rises toward the water chamber 22, and the valve body 20 is opened.

FIG. 7 shows an example of the state of the sub-channel opening / closing valve mechanism 76 when the handle 33a is operated in the direction of large washing from the closed state of the valve body 20 shown in FIG. As shown in FIG. 7, when the handle 33a is operated in the direction of large cleaning, the support rod 33b and the upper disk plate 76b rotate clockwise, so that the flow hole 76bR1 is connected to the outlet 72AbO of the through passage 72Ab. It overlaps with both the grooves 76aM of the lower disk plate 76a, and
R3 overlaps with both the entrance 72BaI of the through passage 72Ba and the groove 76aM of the lower disk plate 76a. Therefore, the water accumulated in the water chamber 22 and the water inlet channel 72A is
As shown by an arrow in FIG. 7, the outlet 72AbO → the flow hole 76
bR1 → groove 76aM → flow hole 76bR3 → entrance 72Ba
The water flows out to the second water channel 18b via a route I → water channel 72B.

The water accumulated in the water chamber 22 and the water inlet channel 72A instantaneously flows into the outlet 72AbO due to the pressure difference between the water chamber 22 and the water outlet channel 72B. On the other hand, the handle 33a and the support bar 33b rotated by the operation are connected to the return mechanism 3
3c returns to the original position before the operation, and accordingly, the upper disk plate 76b integrated with the support rod 33b.
Return to the original position. Thereby, the upper disk plate 76b
The overlapping of the flow holes 76bR1 to 76bR4 with the outlet 72AbO of the through passage 72Ab, the inlet 72BaI of the through passage 72Ba, and the groove 76a of the lower disk plate 76a is released, and the upper disk plate 76b and the lower disk plate 76a are released.
Returns to the state shown in FIG. Therefore, after this, water chamber 2
When the water in the water chamber 22 reaches the outlet 72AbO of the through passage 72Ab through the water inlet 72A, the water reaching the outlet 72AbO is supplied to the upper disk plate 76b.
Are sealed by the upper surface where the flow holes 76bR1 to 76bR4 are not formed. As a result, shortly after the operation of the handle 33a, the entry of water into the lower disk plate 76a and the water outlet channel 72B is prohibited, whereby the outflow of water from the water chamber 22 to the second water channel 18b is stopped.

On the other hand, in the above-mentioned flash valve 10, the handle 33a, the support rod 33b and the return mechanism 3
3c, an opening / closing amount control valve mechanism 36 including an upper disk plate 36b, a moving body 36c, and a lower disk plate 36a, and a communication channel 32 including an inlet passage 32A and an outlet passage 32B. This corresponds to a water chamber replenishment mechanism HK and a valve closing mechanism ED, which are mechanisms for closing the body 20.
The rotation operation of the moving body 36c associated with the operation of the operation unit 33 performed by the water chamber replenishment mechanism HK will be described below with reference to FIGS.

FIG. 8A to FIG. 10A
Shows a state when the horizontal cut plane NN (see FIG. 1) between the partition member 15 and the upper disk plate 36b is viewed from above. In each of these figures (A), the support bar 33b and the upper disk plate 36b are shown in a see-through state so that the movement of the moving body 36c can be easily understood.
As for the shape of 6b, only the shape of the concave portion 36bK on the bottom surface is shown by a two-dot chain line as a virtual shape.

The inflow hole 36a of the lower disk plate 36a
Those located below the support rod 33 and the lower disk plate 36a, such as I, the end of the water inlet 32A, and the start of the water outlet 32B, are indicated by broken lines. In a state where the lower disk plate 36a is housed in the recess 12c, the inflow hole 36aI overlaps with the water inlet 32A on the bottom surface of the recess 12c.
At this time, the flood channel 32B formed on the bottom surface of the concave portion 12c is formed.
Overlaps with three adjacent ones of the eight outflow holes 36aO1 to 36aO8. 8 to 10, the outflow holes 36aO1, the outflow holes 36aO2, and the outflow holes 36a
The three holes O3 are shown as overlapping the flood channel 32B. Also, the concave portion 36bK of the upper disk plate 36b.
Inside, among these three holes, outflow holes 36aO2 having an inner diameter of about 1 mm and outflow holes 36aO2 having an inner diameter of about 1.3 mm
Two adjacent outflow holes 3 are arranged.

Further, FIG. 8B to FIG.
Shows the state of the handle 33a when the support bar 33b and the moving body 36c are at the positions shown in FIGS.

FIG. 8 shows the opening / closing amount adjusting valve mechanism 36 in the closed state of the valve body 20 shown in FIG. Valve body 20
8A, the support rod 33 is closed as shown in FIG.
The cutout 33bK at the lower end of b is oriented in the intermediate direction P0 between the outflow holes 36aO2 and 36aO3. The tip of the moving body 36c faces the direction Q2 of the outflow hole 36aO3, and the outflow hole 36aO3 is covered with the cover 36cH. In this state, the notch 33bK
The engagement protrusion 36cK located inside is in contact with one of the two cutout side surfaces in the cutout portion 33b.

From the state shown in FIG.
As shown in (B), when the handle 33a is operated in the direction of small cleaning, the support bar 33b rotates in this operation direction. With the rotation of the support rod 33b, the engagement protrusion 36c
One side surface of the notch 33b in contact with K presses the engagement protrusion 36cK in the rotation direction, and moves the moving body 36c in the counterclockwise direction, which is the rotation direction of the support rod 33b. This allows
The moving body 36c rotates about the axis of the support rod 33b in the rotation direction of the support rod 33b, and the opening / closing amount adjustment valve mechanism 36
Is in the state shown in FIG. That is, the notch 33b
K is the direction P1 on the counterclockwise side of the outflow hole 36aO2.
And the tip of the moving body 36c is directed in the direction Q1 of the outflow hole 36aO2. As a result, in the recess 36bK, the cover 36cH of the moving body 36c is formed in the outflow hole 3c.
The state changes to cover 6aO2.

As described above, the groove 36 of the moving body 36c
A convex portion 36bT formed in the concave portion 36bK is loosely fitted to cM. Therefore, the moving body 36c moves along the protrusion 36bT with the rotation of the support rod 33b. This makes it possible to prevent a situation in which the engaging projection 36cK is out of the notch range of the notch 33bK during the rotation of the moving body 36c. Therefore, the rotational force of the support bar 33b can be reliably transmitted to the moving body 36c.

The support bar 33b is rotated counterclockwise by the action of the stopper provided in the return mechanism 33c, with the position of the notch 33bK facing the direction P1 as a limit. When the handle 33a is released after reaching the limit position, the support bar 33b and the handle 33a rotate clockwise by the action of the leaf spring 33d provided in the return mechanism 33c. Thereby, the handle 33a and the support rod 33b
Is in a state as shown in FIG. That is, handle 3
3a and the support rod 33b return to the original position before the operation by the action of the return mechanism 33c, and as a result, the notch 33bK
Is directed in the same direction P0 as before the operation.

At the time of this clockwise rotation, FIG.
(A) and FIG. 10 (A), the engagement protrusion 36
cK is not pressed by the side surface of the notch 33b. This is because the cutout range of the cutout 33bK is provided in accordance with the interval between the outflow holes 36aO2 and 36aO3. Accordingly, the moving body 36c does not move with the return operation of the support rod 33b, and the inside of the concave portion 36bK is
6cH is maintained in a state of covering the outflow hole 36aO2.

On the other hand, when the handle 33a is operated in the direction of the small washing, the valve body 20 is opened by the valve opening mechanism ST similarly to the operation in the large washing direction described above, and at this time, the pressure in the water chamber is reduced. Since it is lower than the first water channel, water flows from the first water channel 18a into the water inlet channel 32A due to the pressure difference between the first water channel and the water chamber. The water flowing into the water inlet channel 32A passes through the inflow hole 36aI of the lower disk plate 36a and the upper disk plate 36a.
After entering the concave portion 36bK of b, it passes through one outflow hole 36aO3 not covered by the cover portion 36cH of the moving body 36c, and flows out to the water chamber 22 through the water outlet passage 32B. The flow path of the water supplied to the water chamber 22 is indicated by an arrow in FIG. As a result of the water being supplied to the water chamber 22 as described above, the pressure in the water chamber gradually increases, and the valve body 20 gradually lowers.
When the water chamber 22 is almost full, the valve body 20 closes. At this point, the pressure in the water chamber recovers to a pressure equal to the pressure in the first channel.

As described above, the flash valve 10 of the first embodiment
The water chamber replenishing mechanism HK and the valve closing mechanism ED provided in the above have been described. When the handle 33a for small cleaning is continuously operated after the state after the operation for small cleaning shown in FIG. 10, the support bar 33b is rotated counterclockwise again, and the notch 33bK is moved in the direction P1. Turned to on the other hand,
Before this rotation, the tip of the moving body 36c is already in the outflow hole 3
6aO2 in the direction Q1. Therefore, the side surface of the notch 33bK does not press the engagement protrusion 36cK with the rotation of the support rod 33b, and the moving body 36c does not move. Thereafter, the support rod 3 is actuated by the action of the return mechanism 33c.
3b is also rotated clockwise, the notch 33
The side surface of bK does not press the engagement protrusion 36cK. In other words, when the small cleaning operation is performed twice, the handle 3
With the operation of 3a, the moving body 36c does not move,
c, through the cover 36cH before and after the operation,
It is in a state of covering aO2. The same applies to the case where the large washing is performed twice. Thereby, the moving body 3
The operation frequency of the flash valve 10 can be reduced, and the durability of the flash valve 10 can be further increased.

In the flash valve 10 of the first embodiment having the above-described structure, after the valve element 20 is opened by the valve opening mechanism ST, the valve element 20 is closed by the water chamber replenishment mechanism HK. A means (valve opening period adjusting means) for adjusting a period until the setting is made (hereinafter referred to as a valve opening period) to one of a plurality of predetermined periods. In the first embodiment, this valve opening period adjusting means is
The operation is realized by making the amount of water supplied to the water chamber 22 per unit time by the water chamber replenishing mechanism HK after the operation a (hereinafter referred to as an instantaneous flow rate to the water chamber 22) different for each of the large washing and the small washing. . This opening period and water chamber 2
The relationship with the instantaneous flow rate to 2 is shown in the graph of FIG.

As shown in FIG. 12, the instantaneous flow rate FHD to the water chamber 22 in the case of large cleaning is made smaller than the instantaneous flow rate FHS to the water chamber 22 in the case of small cleaning. Thus, in the case of small cleaning, the water chamber 22 is in an early stage (time T) after the start of cleaning.
3), the water chamber 22 becomes full, and in the case of large washing, it is later than in the case of small washing (when time T4 has elapsed).
It becomes full. As a result, in the case of small washing, the valve opening period becomes short (between 0 and T3), and the total amount of water supplied from the first water passage 18a to the second water passage 18b becomes a small value of 4.5 liters. Become. On the other hand, in the case of large washing, the valve opening period becomes longer (between 0 and T4), and the first waterway 1
The total amount of water (total flow rate Q) supplied from 8a to the second water channel 18b is as large as 6 liters. The values in parentheses in this paragraph indicate values on the graph shown in FIG.

The adjustment of the valve opening period is performed by the steering wheel 3.
This is realized by a non-electrical structure including an operation unit 33 composed of 3a, a support rod 33b, and a return mechanism 33c, and an opening / closing amount adjustment valve mechanism 36 composed of an upper disk plate 36b, a moving body 36c, and a lower disk plate 36a. In particular,
Regarding the outflow holes 36aO1 to O8 of the lower disk plate 36a through which the water being supplied from the first water passage 18a to the water chamber 22 passes, if the opening areas of the outflow holes 36aO1 to O8 are different depending on the operation direction of the handle 33a. It is realized by doing.

FIG. 13 is an explanatory diagram showing the relationship between the inner diameter D of each of the outflow holes 36aO1 to O8 of the lower disk plate 36a and the total flow rate Q of water supplied from the first water passage 18a to the second water passage 18b. In the first embodiment, as the inner diameter D of the outflow holes 36aO1 to O8 of the lower disk plate 36a increases, in other words, as the opening area increases, the instantaneous flow rate to the water chamber 22 increases, and the valve body 20 opens. The period becomes shorter and the first waterway 1
Focusing on the fact that the total flow rate Q of water from the second water passage 18b to the second water passage 18b decreases, as shown in FIG.
The total flow rate Q is defined in advance according to the size of the opening area of O8 to O8.

More specifically, water from the water inlet 32A is supplied to the outlet 36aO1 (about 0.6 mm in inner diameter) and the outlet 36aO1.
2 (inner diameter about 1 mm), outlet hole 36aO3 (inner diameter about 1.3 mm)
mm), outflow hole 36aO4 (inner diameter about 1.6 mm), outflow hole 36aO5 (inner diameter about 0.8 mm), outflow hole 36aO6
(Inner diameter about 1.2 mm), outflow hole 36aO7 (inner diameter about 1 m
m), and outflow holes 36aO8 (inner diameter of about 1.6 mm), during the valve opening period of the valve body 20, about 8 liters, about 6 liters, and about 4.5 liters, respectively. Minutes, about 3 liters, about 7 liters, about 5 liters, about 6 liters, and about 3 liters of water are supplied from the first channel 18a to the second channel 18b.

Therefore, when the handle 33a described above with reference to FIGS. 8 to 10 is operated in the small washing direction, after the washing is started, the first water passage 18a starts to enter the water inlet passages 32A, 32A.
The water that has flowed into the concave portion 36bK through the inflow hole 36aI passes through the outflow hole 36aO3 having an inner diameter of 1.3 mm, and flows into the water chamber 22 from the outflow passage 32B overlapping the outflow hole 36aO3, resulting in about 4.5. 1 liter of water is in the first channel 18a
Is supplied to the second water passage 18b.

FIG. 14 shows the state of the opening / closing amount control valve mechanism 36 when the handle 33a is operated in the direction of large cleaning from the state after the completion of the small cleaning operation shown in FIG. Figure 1
When the handle 33a is operated in the large cleaning direction from the state shown in FIG. 0, the first water passage 18a
14A, the supply of water to the second water passage 18b is started, and the open / closed state of the opening / closing amount control valve mechanism 36 is changed to the state shown in FIG.
The state is switched as shown in FIG. That is, the support rod 33
Notch 3 in contact with engagement projection 36cK with rotation of b
One side of 3b presses the engagement protrusion 36cK in the rotation direction, and moves the moving body 36c clockwise. As a result, the notch 33bK is oriented in the direction P2 on the clockwise side of the outflow hole 36aO3, and the tip of the moving body 36c is oriented in the direction Q2 of the outflow hole 36aO3. Thereby, the inside of the concave portion 36bK is covered with the cover portion 36 of the moving body 36c.
The state changes to a state in which cH covers the outflow hole 36aO3. Therefore,
Water that has flowed into the recess 36bK from the first water passage 18a through the water inlet passage 32A and the inflow hole 36aI after the start of washing passes through the outflow hole 36aO2 having an inner diameter of 1 mm, and flows out of the outflow hole 36aO.
The water flows into the water chamber 22 from the water discharge channel 32B overlapping the second water channel. As a result, during the valve opening period of the valve body 20, about 6 liters of water is supplied from the first water passage 18a to the second water passage 18b.

That is, the amount of water passing through the outflow holes per unit time and flowing into the water chamber 22 from the water discharge passage 32B is larger in the case of large washing passing through the outflow holes 36aO2 having a small opening area. The number is smaller than that in the case of small cleaning passing through the outflow hole 36aO3 having a large opening area. Accordingly, in the case of the large cleaning, the water chamber 22 becomes fuller later than in the case of the small cleaning, so that the valve opening period of the valve body 20 becomes longer than in the case of the small cleaning. Thereby, the total flow rate D in the case of large cleaning is
1.5 liters more than in the case of small washing.

The flash valve 1 of the first embodiment described above
0 adjusts the valve opening period of the valve body 20 to one of a plurality of periods. Therefore, the total amount of water discharged from the water outlet 16 can be controlled in a plurality of ways. For example, it is possible to freely adjust the amount of flush water discharged from the spout 16 to the flush toilet according to local circumstances and the like.

In the first embodiment, the valve opening period of the valve body 20 is different between the large washing and the small washing.
It is possible to provide a flash valve capable of discharging a plurality of types of water amounts such as a large amount and a small amount. For example, if the flush valve 10 is connected to a flush toilet, the amount of water used during urination is smaller than that of a conventional flush valve.
Water can be saved. Also, in public toilets, etc., washing for noise reduction (hereinafter referred to as pre-washing) may be performed before stool so that others may not hear the sound of the flight falling on the water surface. Therefore, a small amount of water can be selected, and water can be saved.

In the flash valve 10 of the first embodiment,
The above-described adjustment of the valve opening period of the valve body 20 is performed by adjusting the instantaneous flow rate of the makeup water supplied to the water chamber 22 from the first water passage 18a after the valve body 20 is opened by the opening / closing amount adjustment valve mechanism 36. . Therefore, the total amount of water discharged from the water outlet 16 can be reliably controlled.

In the first embodiment, the adjustment of the valve opening period of the valve element 20 is performed by adjusting the lower disc plate 3 with the rotation of the support rod 33b.
This is realized by a non-electrical mechanical structure of moving the moving body 36c on 6a. Therefore, it is possible to install a flash valve capable of discharging a plurality of types of water amounts even in a place where there is no power supply, thereby increasing versatility. For example, even when a power supply cannot be provided in the toilet room, by connecting the flush valve 10 of the first embodiment to the toilet, a toilet that can be switched in size can be realized.

In the first embodiment, the first water passage 18a and the water chamber 2
The upper disk plate 36 is provided in the middle of the communication flow path 32 communicating
b, the moving body 36c and the lower disk plate 36a are provided, and one of the eight outflow holes 36aO1 to 36aO8 provided in the lower disk plate 36a and having different opening areas is overlapped with the communication channel 32, The instantaneous flow rate of water supplied from the first water passage 18a to the water chamber 22 is adjusted. Therefore,
Outflow holes 36aO1-36aO overlapping with the communication channel 32
By simply changing 8, it is possible to easily realize various amounts of water.

The flash valve 10 according to the first embodiment
Switches the valve-opening period of the valve body 20 in accordance with the operation of the operation unit 33 for starting water discharge from the water discharge port 16. That is, the start of water discharge and the adjustment of the total amount of water discharged are realized by one operation. Therefore, there is no need to perform another operation to adjust the water discharge amount, and the usability is improved.

In the first embodiment, the lower disk plate 36
a is stored in the recess 12c.
The drainage channel 32B formed on the bottom surface of the
Although three adjacent holes among aO1 to 36aO8 are overlapped with each other, the outflow passage 32B is provided with eight outflow holes 36a.
It is good also as composition which overlaps with two holes of different inside diameters among O1-36aO8. Such a configuration example is shown in FIG.
It was shown to.

FIGS. 8 to 10 and FIG.
In this example, three holes overlapping with the water discharge passage 32B are defined as an outflow hole 36aO1 having an inner diameter of about 0.6 mm, an outflow hole 36aO2 having an inner diameter of about 1.0 mm, and an outflow hole 36a having an inner diameter of about 1.3 mm.
Although O3 was used, three out of the eight outflow holes 36aO1 to 36aO8 are arranged on the bottom surface of the concave portion 12c after rotating the lower disk plate 36a, as to which of the three outflow holes overlaps the outflow passage 32B. Can be changed arbitrarily.

Such a change is caused by the flash valve 10
Not only in the manufacturing stage, but also in the flash valve 10
It is possible even after is once installed. That is, when the lower disk plate 36a is housed in the concave portion 12c, a slight clearance is provided between the peripheral wall surface of the concave portion 12c and the outer peripheral surface of the lower disk plate 36a. By inserting the tip of a flathead screwdriver into the clearance and pulling up the lower disk plate 36a, the lower disk plate 36a can be taken out. in this way,
The lower disk plate 36a is configured to be detachable.

The upper and lower surfaces of the lower disk plate 36a are formed in a flat shape like the bottom of the recess 12c. Accordingly, the lower disk plate 36a can be rotated and then installed on the bottom surface of the concave portion 12c, or the lower disk plate 36a can be turned upside down and installed on the bottom surface of the concave portion 12c.

An example in which the lower disk plate 36a is rotated and then disposed on the bottom surface of the concave portion 12c is shown in FIG.
6 is shown. In the first modification, the lower disk plate 36a
In the recess 12c,
Is an outflow hole 36aO6 having an inner diameter of about 1.2 mm among the eight outflow holes 36aO1 to 36aO8, and an inner diameter of about 1.0 mm.
Outflow hole 36aO7 and outflow hole 3 having an inner diameter of about 1.6 mm
6aO8 was overlapped. Out of these three holes, two adjacent outflow holes 36aO7 and 36aO8 are arranged in the recess 36bK of the upper disk plate 36b.

With the configuration of the first modified example, the total flow rate Q of the flash valve 10 can be easily changed in accordance with local circumstances, differences in regulations, and the like. For example, FIG.
In the case of the first modification shown in FIG. 7, the tip of the moving body 36c is oriented in the direction Q2 of the outflow hole 36aO8,
When the cover 36cH of 6c covers the outlet 36aO8, the water from the water inlet channel 32A and the inlet 36aI passes through one outlet 36aO7 not covered by the cover 36cH of the moving body 36c. As a result, about 6 liters of water is supplied from the first water passage 18a to the second water passage 18b. On the other hand, when the tip of the moving body 36c is oriented in the direction Q1 of the outflow hole 36aO7 and the cover 36cH of the moving body 36c covers the outflow hole 36aO7, the water inlet 3
2A, the water from the inflow hole 36aI passes through the outflow hole 36aO8, so that about 3 liters of water is supplied to the first water passage 18a.
a to the second channel 18b (see FIG. 13).

The lower disc plate 36a is turned upside down and
FIG. 17 shows a second modification in which an arrangement is provided on the bottom surface of FIG.
Shown in In the second modification, the lower disk plate 36a is turned upside down and housed in the recess 12c, and the water outflow passage 32B has an inner diameter of about 0.8 out of the eight outflow holes 36aO1 to 36aO8.
6 mm outflow hole 36aO1, outflow hole 36aO8 of about 1.6 mm inner diameter and outflow hole 36aO7 of about 1.0 mm inner diameter
And overlapped. Out of these three holes, two adjacent outflow holes 36aO8 and 36aO7 are arranged in the recess 36bK of the upper disk plate 36b.

By adopting the configuration of the second modified example, it is possible to easily reverse the operation direction of the handle 33a for large cleaning and small cleaning, and to cope with various usability. For example, when the handle 33a is operated in the clockwise direction, the tip of the moving body 36c is moved to the outflow hole 36aO.
7, the water from the water inlet 32A and the inlet 36aI passes through the outlet 36aO8 to supply about 3 liters of water from the first channel 18a to the second channel 18b. Is done. On the other hand, when the tip of the moving body 36c is turned in the direction Q1 of the outflow hole 36aO8 by the operation of the handle 33a in the counterclockwise direction, water from the water inlet passage 32A and the inflow hole 36aI passes through the outflow hole 36aO7. As a result, about 6 liters of water is
8a is supplied to the second water channel 18b (see FIG. 13). Thus, the direction of switching between large cleaning and small cleaning is
The direction can be opposite to that of the first modification.

In the first embodiment, the upper disk plate 36b
The two adjacent outflow holes formed in the lower disk plate 36a are arranged in the recess 36bK.
In this case, only one outflow hole may be arranged. It is also possible to adopt a configuration in which three or more outflow holes are arranged. The former configuration is shown in FIG. 18 as a third modification, and the latter configuration is shown in FIG. 19 as a fourth modification.

In the third modification, as shown in FIG.
One outflow hole 3 is formed in the recess 36bK of the upper disk plate 36b.
Only 6aO9 is arranged. This outflow hole 36aO9 is
Cover 36c of moving body 36c with its tip directed in direction Q2
H is not covered, and when the tip is turned in the direction Q1 as shown by a dashed line in FIG.
The moving body 36c is arranged so that a part thereof is covered by a cover 36cH.

According to the configuration of the third modification, the area in which one outflow hole 36aO9 is closed by the cover 36cH is smaller when the tip of the movable body 36c is directed in the direction Q2. Is larger than in the case where the front end is directed in the direction Q1. In this way, by giving a difference in the water permeable area of the outflow holes 36aO9, the total amount of water supplied from the first water passage 18a to the second water passage 18b can be changed.

In the fourth modification, as shown in FIG.
Three outflow holes 3 are formed in the recess 36bK of the upper disk plate 36b.
6aO10 to O12 are arranged. Outflow hole 36aO1
0, the inner diameters of the outflow holes 36aO11 and 36aO12 are about 0.2 mm, about 0.6 mm, and about 1.0 m, respectively.
m. That is, the three outflow holes 36aO10 to O12
Are arranged so that the opening area thereof gradually increases in the clockwise direction. The recesses 36bK of the upper disk plate 36b are formed with these three outflow holes 36aO10-O.
12 is formed to have a size that can accommodate the same. Further, the notch 33bK of the support bar 33b is provided such that two V-shaped notch surfaces form a substantially right angle.

If the configuration of the fourth modified example is adopted, the total amount of water supplied from the first water passage 18a to the second water passage 18b becomes 3
It can vary across types. That is, the moving body 3
6c is directed in the direction Q2, the waterway 3
2A, water from the inflow hole 36aI
(The inner diameter is about 0.2 mm) and the outflow hole 36aO11 (the inner diameter is about 0.6 mm), and the total amount of water supplied from the first water passage 18a to the second water passage 18b is about 7 liters. On the other hand, when the tip of the moving body 36c is directed in the direction Q3, water from the water inlet channel 32A and the inflow hole 36aI is discharged from the outflow hole 36aO11 (about 0.6 mm in inner diameter) and the outflow hole 36a.
The total amount of water passing through O12 (inner diameter about 1 mm) and supplied from the first water passage 18a to the second water passage 18b is about 3 liters. When the tip of the moving body 36c is directed in the direction Q1, water from the water inlet 32A and the inflow hole 36aI is discharged from the outflow hole 36aO10 (inner diameter of about 0.2 mm) and the outflow hole 36a.
The total amount of water passing through aO12 (about 1 mm in inner diameter) and being supplied from the first water passage 18a to the second water passage 18b is about 5 liters (see FIG. 13).

Next, a second embodiment of the present invention will be described. FIG. 20 is an explanatory diagram illustrating a schematic cross section of the flash valve 110 according to the second embodiment. The flash valve 110 shown in FIG. 20 has substantially the same components as the flash valve 10 shown in FIG. 1 in the first embodiment. In FIG. 20, the last two digits of the reference numerals for these common parts are represented using the same numerals as in FIG.

On the other hand, the flash valve 110 has the first
An opening / closing control valve mechanism 36 comprising an upper disk plate 36b, a moving body 36c and a lower disk plate 36a, which are components of the water chamber replenishing mechanism HK and the valve closing mechanism ED of the embodiment, and a communication comprising an inlet passage 32A and an outlet passage 32B. The flow path 32 is not provided. Instead of these, the flash valve 11
0 indicates that the valve body 120 has a sleeve 120 from its top 120c.
It has through holes 120g2 to n2 penetrating up to d. In the flash valve 110 of the second embodiment, this through hole 1
20g2-n2, after opening the valve body 120, the first water channel 11
It functions as a flow path of water supplied from 8 a to the water chamber 122, that is, a communication flow path 132.

The top and bottom surfaces of the valve body 120 are shown in FIG.
(A) and (B) show these respectively. FIG. 21 (A),
As shown in (B), the valve body 120 is provided with eight through holes 120g2 to n2 located slightly inside the outer periphery of the valve body 120 as substantially circular holes passing through the valve body 120. .

As shown in FIG. 21A, the top 120c
The inner diameters of the outlets of the through holes 120g2 to n2 located above are the same for each of the through holes 120g2 to n2, and take a value of about 1.5 mm. On the other hand, as shown in FIG. 21B, the entrances of the through holes 120g2 to n2 are
The through holes 120g2 to n2 are located inside the bottoms of the recesses 120g1 to n1 formed on 0d, and the inner diameters of the entrances of the through holes 120g2 to n2 are different for each of the through holes 120g2 to n2. Specifically, the inner diameter of the through hole 120g2 is about 1.2 mm, the inner diameter of the through hole 120h2 is about 1.1 mm,
The inner diameter of the through hole 120i2 is about 1.0 mm,
The inner diameter of j2 is about 0.9 mm, the inner diameter of through hole 120k2 is about 0.8 mm, and the inner diameter of through hole 12012 is about 0.7 m
m, the inner diameter of the through hole 120m2 is about 0.6mm, the through hole 1
The inner diameter of 20n2 is about 0.5 mm.

As shown in FIGS. 21 (B) and 20,
The sleeve 120d of the valve body 120 has a recess 12 having a predetermined depth.
0g1 to n1 are provided. Each through hole 120g2
The inlet of n2 is formed on the bottom surface of each of the recesses 120g1 to n1 formed with a larger cross-sectional area than the inlet.

The recesses 120g1-n1 and the recesses 12g
Returning to FIG. 20, the cross-sectional shape of the through holes 120g2 to n2 continuous with 0g1 to n1 will be described. As shown in FIG. 20, the sleeve 120d is provided with recesses 120g1 and k1. Above the recesses 120g1 and k1, the through holes 120g2 penetrate from the recess bottoms of the recesses 120g1 and k1 to the top 120c. k2 is formed. The cross-sectional area of the through holes 120g2 and k2 is
It is minimized at the entrance located at the concave bottom surface of k1. Thereafter, the cross-sectional area of the through-holes 120g2 and k2 gradually increases from the entrance toward the top 20c, and the through-holes 12g2 and k2 gradually increase.
From the middle of 0g2, k2 to the outlet on the top 120c, the cross-sectional area is almost the same. The other through holes 120h2-j2, l2-n2 not shown in FIG.
Similarly to the through-holes 120g2 and k2, the cross-sectional area is the smallest at the entrance and gradually increases from the entrance to reach the top 120c from the middle of the through-holes 120h2-j2, l2-n2.
The cross-sectional area is almost the same up to the upper outlet.

Returning to FIG. 21, the description will be continued. As shown in FIG. 21A, the eight through holes 120g2 to n2 are arranged such that the distance r2 between the centers of adjacent holes is substantially equal. Also, as shown in FIG. 21 (B), the through holes 120g2 to n2 are formed along the outer periphery of the valve body 120 in a clockwise direction as viewed from the bottom, in the direction of the through hole 120n2, the through hole 120m2, and the through hole 12012. Through-hole 120k2,
Through hole 120j2, through hole 120i2, through hole 120h
2, the through holes 120g2 are arranged in this order. In other words, eight continuous holes in the clockwise direction are arranged in the order of the size of the opening area of the entrance.

As shown in FIG. 21B, each recess 120
g1 to n1 are each formed in the same shape. In the recesses 120g1 to n1, eight coatings 162g are provided.
To n are fitted. FIG. 22 shows a state of the bottom surface of the valve body 120 when the selection member 162 is fitted. In addition, the valve body 120 is configured such that any one of the eight covering bodies 162 g to
It is used in a state where it is not mounted on 0g1 to n1. FIG.
The valve body 120 used in the first embodiment has a recess 120g1.
The valve body 120 without the covering body 162g is attached to the valve body shown in FIG.
2 shows a state when cutting is performed along the line segment MM shown in FIG.

Each of the eight coatings 162g-n
The same shape is formed using an elastic material slightly larger than the shapes of 0g1 to n1. As this elastic material,
Resin or rubber having elasticity can be considered. For this reason, when the coverings 162g-n are fitted into the recesses 120g1-n1, the coverings 162g-n are resilient by their elasticity.
It comes into pressure contact with the inner walls of the recesses 120g1 to n1. This allows
The through holes 120g2 to n2 are in a state where passage of water is prohibited.

It is also possible to remove the coverings 162g-n fitted in the recesses 120g1-n1 later. Specifically, the recesses 120g1 to n1 and the cover 16
Insert the tip of the driver into the pressure contact part with 2g ~ n,
What is necessary is just to pull up the tip of the driver while pressing it in the direction in which the coatings 162g to 162g contract.

As shown in FIGS. 22 and 21 (B),
In the vicinity of each of the recesses 120g1 to k1 on the sleeve 120d, a different numerical value is transferred for each position of each of the recesses 120g1 to n1. This numerical value represents the value of the total amount of water (total flow rate Q) supplied from the first water passage 118a to the second water passage 118b when the covering members 162g to 162n are not attached to any of the recesses 120g1 to n1. . The value of the total flow rate Q will be described later.

The operation of the valve opening mechanism ST, the water chamber replenishment mechanism HK, and the valve closing mechanism ED in the flash valve 110 of the second embodiment having the above-described configuration will be described. In the flash valve 110, the handle 133a,
An operation unit 133 including a support rod 133b and a return mechanism 133c, an upper disk plate 176b, and a lower disk plate 1
76a, a sub-channel opening / closing valve mechanism 176, a through-path 172
Aa and an inlet 172A comprising a through passage 172Ab,
The water discharge passage 172B including the through passage 172Ba and the internal flow passage 172Bb corresponds to a valve opening mechanism ST that is a mechanism for opening the valve body 120 in a closed state.

That is, when the valve body 120 is closed in FIG. 20, water having a predetermined water pressure from the water supply port 114 is blocked by the valve body 120, and as a result, the first water passage 118a
The inside and the water chamber 22 are filled with water. In this state, when the handle 133a is operated in either the large washing or the small washing direction, the support rod 1 is moved in this operation direction.
The upper disk plate 176b integrated with 33b and the support bar 133b rotates. Due to the rotation of the upper disk plate 176b, one of the four flow holes 176bR1 to 176bR4 overlaps with both the outlet 172AbO of the through passage 172Ab and the groove 176aM of the lower disk plate 176a, and the other one is The inlet 172BaI of the through passage 172Ba and the groove 176a of the lower disk plate 176a
M overlaps with both sides. As a result, the water chamber 122 and the water inlet 172A in which the water is stored and the atmospheric pressure water outlet 172B in which no water is stored are connected to the upper disk plate 176b.
Are communicated through the flow holes 176bR1 to 176bR4 and the groove 176aM of the lower disk plate 176a. Therefore, the water accumulated in the water chamber 122 and the water inlet channel 172A is transferred to the upper disk plate 176b and the lower disk plate 176a.
Through the drainage channel 172B, and then the connecting pipe 1
17 and flows out to the second water channel 118b. As a result, the valve body 120 rises toward the water chamber 122, and the valve body 12
0 is in the valve open state.

The water stored in the water chamber 122 and the water inlet channel 172A instantaneously flows into the outlet 172AbO due to the pressure difference between the water chamber 122 and the water outlet channel 172B. On the other hand, the handle 133a and the support bar 133b rotated by the operation
Is returned to the original position before the operation by the operation of the return mechanism 133c, and accordingly, the upper disk plate 176b integrated with the support rod 133b also returns to the original position. Thereby, the flow holes 176bR1 to 17 in the upper disk plate 176b are formed.
The overlap between the 6bR4, the outlet 172AbO of the through passage 172Ab, the inlet 172BaI of the through passage 172Ba, and the groove 176a of the lower disk plate 176a is released, and the upper disk plate 176b and the lower disk plate 176a return to the state shown in FIG. . Therefore, after that, water is supplied into the water chamber 122, and when the water in the water chamber 122 reaches the outlet 172AbO of the through passage 172Ab through the water inlet 172A, the water reaching the outlet 172AbO is The disk plate 176b is sealed by the upper surface on which the flow holes 176bR1 to 176bR4 are not formed. Thus, entry of water into the lower disk plate 176a and the water outlet 172B after the end of the cleaning start operation is prohibited. The operation of each part when the valve element 120 is opened is almost the same as the operation of the first embodiment described with reference to FIGS.

[0130] The valve body 120 that has been opened is eventually closed by the water chamber replenishing mechanism HK and the valve closing mechanism ED. In the flash valve 110 of the second embodiment,
One through-hole 120g2 provided by not attaching one covering body 162g-n to the recess 120g1-n.
n2 corresponds to the water chamber replenishment mechanism HK and the valve closing mechanism ED.

That is, when water is supplied from the first water passage 118a to the second water passage 118b with the opening of the valve body 120, a large amount of water flows below the raised valve body 120. Therefore, the first water channel 118a and the main water channel 118c are almost fully filled, and the water is pressed against the sleeve 120d of the valve body 120. As a result, the first waterway 118a moves from the second waterway 118
A part of the water supplied to b is branched in the direction of one of the recesses 120g1 to 120n to which the coatings 162g to 162 are not attached, and flows into the entrance of one of the through holes 120g2 to n2. The water that has flowed into the inlet portion has a through-hole of 120 g2 due to the pressure of the water.
Ｎn2 to reach the outlet connected to the water chamber 122. As a result, water is supplied to the water chamber 122 in a state where the outflow of water from the water chamber 122 to the second water passage 118b is prohibited. The flow path of the water supplied to the water chamber 122 is indicated by an arrow in FIG. As a result of the water being supplied to the water chamber 122, the valve body 120 gradually descends, and when the water chamber 122 is almost full, the valve body 120 closes.

The flash valve 110 according to the second embodiment configured as described above adjusts the valve opening period of the valve body 120 to one of a plurality of predetermined periods (valve opening). Period adjusting means). In the second embodiment,
The valve opening period adjusting means is realized by changing the amount of water (hereinafter, referred to as an instantaneous flow rate to the water chamber 122) supplied to the water chamber 122 per unit time by the water chamber replenishing mechanism HK after the operation of the handle 133a. .

The adjustment of the valve opening period is performed by adjusting the eight through-holes 120g2 to n2 having different diameters at the inlet portion and the through-holes 1g2 to n2.
This is realized by a non-electrical structure of the coatings 162g-n covering 20g2-n2. Specifically, the coating 1
By changing the attachment / detachment state of 62g-n, the first waterway 1
This is realized by making the opening areas of the through-holes 120g2 to n2 through which the water in the middle of being supplied to the water chamber 122 from 18a differ.

FIG. 23 shows the inner diameter D2 of the inlet of each of the through holes 120g2 to n2 and the first waterway 118a to the second waterway 118a.
It is explanatory drawing which shows the relationship with the total flow quantity Q of the water supplied to b. In the second embodiment, the through hole 120g2 of the valve body 120
As the inner diameter D2 of the inlet of n2 increases (in other words, as the opening area increases), the instantaneous flow rate to the water chamber 122 increases, the valve opening period of the valve body 120 decreases, and the first water passage 118a extends from the first water passage 118a. Focusing on the fact that the total flow rate Q of water to the two water channels 118b is reduced, as shown in FIG.
The total flow rate Q is defined in advance according to the size of the opening area of the inlet portion from 0 g2 to n2.

Specifically, water from the first water channel 118a is supplied to the through-hole 120g2 (about 1.2 mm in inner diameter) and the through-hole 1g.
20h2 (inner diameter about 1.1mm), through hole 120i2 (inner diameter about 1.0mm), through hole 120j2 (inner diameter about 0.9m)
m), through hole 120k2 (inner diameter about 0.8 mm), through hole 12012 (inner diameter about 0.7 mm), through hole 120m2
(Inner diameter about 0.6 mm), through-hole 120n2 (inner diameter about 0.
5 mm), and flows into the water chamber 122 through the holes of about 5 liters, about 5.5 liters, about 6 liters, and about 6 liters during the valve opening period of the valve body 20, respectively. .
5 liters, about 7 liters, about 7.5 liters,
About 8 liters and about 8.5 liters of water are supplied from the first water passage 118a to the second water passage 118b. These numerical values are the same as the numerical values transferred on the sleeve 120d in FIGS. 21B and 22.

For example, the cover 1 is placed in the recesses 120g1 to m1.
62g-m is attached, and the cover 162n is
When the water chamber 122 is not mounted, the water flowing into the lower part of the valve body 120 from the first water passage 18a after the valve body 120 is opened passes through the through hole 120n2 having an inner diameter of 0.5 mm, and the water chamber 122
Flows into. As a result, about 8.5 liters of water is supplied from the first channel 118a to the second channel 118b.

On the other hand, the coverings 162h to 162n are attached to the recesses 120h1 to n1 and the covering 16
When 2 g is not installed, the water that has flowed downward from the first water passage 18 a below the valve body 120 after the valve body 120 is opened passes through the through hole 120 g 2 having an inner diameter of 1.2 mm into the water chamber 122. Inflow. For this reason, compared with the case where the covering body 162n is not attached to the recess 120n1, the water chamber 122
Becomes sooner, and the opening period of the valve body 120 becomes shorter. As a result, a smaller amount of water for about 5 liters is supplied from the first water passage 118a to the second water passage 118b.

According to the flush valve 110 of the second embodiment described above, the valve body 120 is provided with the first water passage 118a.
And the water chamber 122, the valve body 12
Eight through-holes 120g2-n2 penetrating through 0 are formed with different cross-sectional areas, and one of the through-holes 120g2-n2 is formed.
The first water channel 118 is formed by using the through holes 120g2 to n2.
Water is supplied to the water chamber 122 from a. Therefore, by changing the through holes 120g2 to n2 used, the first waterway 1
It is possible to change the instantaneous flow from 18a to the water chamber 122. As a result, various amounts of water can be spouted from the spout 116.

Also, the flash valve 11 of the second embodiment
0 is a cover 1 for covering each through hole 120g2 to n2.
62g-n are provided, and these coatings 162g-n are configured to be detachable. Therefore, the user can use each of the coatings 162g-n
By changing the mode of attaching and detaching the water, a desired water discharge amount can be selected.

Further, in the flash valve 110, each of the through holes 120g2 to 120g2
The amount of water discharged when the coatings 162g to 162g are removed from n2 is displayed. Therefore, a desired water discharge amount can be easily and reliably selected. In addition, in a method other than the above,
The amount of water discharged from the water outlet 116 may be identified. For example, it is conceivable to display on the coatings 162g to n the amounts of water discharged when the coatings 162g to n are removed from the through holes 120g2 to n2. It is also preferable to change the colors of the coatings 162g to 162n according to the area where the flash valve 110 is used.

A description will be given of a third embodiment of the present invention. FIG. 24 is an explanatory diagram illustrating a schematic cross section of a flash valve 310 according to the third embodiment. The flash valve 310 shown in FIG. 24 has substantially the same components as the flash valve 110 shown in FIG. 1 in the second embodiment. 24, the last two digits of the reference numerals for the common parts are represented by the same numerals as in FIG.

As in the second embodiment, the flash valve 310 is attached to the valve body 320 from the top 320c to the sleeve 32.
It has through holes 320g2 to n2 penetrating to 0d.
The through holes 320g2 to n2 function as a flow path of water supplied from the first water path 318a to the water chamber 322 after the valve body 320 is opened, that is, a communication flow path 332.

On the other hand, in the flash valve 310, FIG.
As shown in FIG. 4, a hollow cylindrical ring body 362 formed of an elastic resin is used as a selection member for covering the through holes 320g2 to n2 in the sleeve 320d of the valve body 320.
Is used. The ring body 362 is pressed from below by a hollow cylindrical cap 365.

That is, the screw portion 325 is formed on the outer peripheral wall from the step portion 320a of the valve body 320 to the contact step portion 320y. On the other hand, a thread having the same pitch as the threaded portion 325 is formed on the peripheral wall of the hollow portion of the cap 365. Therefore, by inserting the ring body 362 and the cap 365 from below the valve body 320 and rotating the cap 365 clockwise, the cap 365 is
5, the upper surface of the cap 365 comes into contact with the contact step 320y of the valve body 320. As described above, by tightening the cap 365 until the cap 365 contacts the contact step 320y, the ring body 362 is pressed from below by the cap 365, and is sandwiched between the upper surface of the cap 365 and the sleeve 320d. Become.
As a result, the upper surface of the ring body 362 is pressed against the sleeve 320d.

As shown in FIG. 24, a predetermined gap is provided below the through hole 320k2 facing the sleeve 320d. This gap is formed by the recess 3 formed in the ring body 362.
62a. This will be described later.

The top and bottom surfaces of the valve body 320 are shown in FIG.
(A) and (B) show these respectively. FIG. 25 (A),
As shown in (B), eight through holes 320g2 to n2 are provided slightly inside the outer periphery of the valve body 320 as substantially circular holes penetrating the valve body 320. FIG. 21 (A)
As shown in (8), the eight through holes 320g2 to n2 are arranged such that the distance r3 between the centers of adjacent holes is substantially equal.

In the third embodiment, eight through holes 320g2
The inner diameter of n2 is from the inlet to the top 32 on the sleeve 320d.
It is almost the same up to the outlet on 0c. The inner diameter of the through holes 320g2 to n2 is
Each of g2 to n2 is different. Specifically, the inner diameter of the through hole 320g2 is approximately 1.2 mm,
The inside diameter of 20h2 is about 1.1 mm, the inside diameter of through hole 320i2 is about 1.0 mm, and the inside diameter of through hole 320j2 is about 0.9 mm.
mm, the inner diameter of the through-hole 320k2 is about 0.8 mm, the inner diameter of the through-hole 32012 is about 0.7 mm, the inner diameter of the through-hole 320m2 is about 0.6 mm, and the inner diameter of the through-hole 320n2 is about 0.3 mm.
5 mm. That is, the through holes 320g2 to n2
Are arranged along the outer periphery of the valve body 320 in a clockwise direction as viewed from the bottom surface in the order of the size of the opening area.

As shown in FIG. 25B, each through hole 32
At the position on the contact step 320y corresponding to the positions of 0g2 to n2, different numerical values are transferred to the positions of the through holes 320g2 to n2. This value is 320 g for each through hole.
In the case where the concave portion 362a of the ring body 362 is arranged below 2 to n2, the first water passage 318a to the second water passage 31
8b represents the value of the total amount of water (total flow rate Q) supplied to 8b.

[0149] A ring member 362 as a selection member is disposed on the sleeve 320d shown in Fig. 25B. FIG. 26 shows the appearance of the ring body 362. FIG. 26A is a top view of the ring body 362, and FIG. 26B is a side view of the ring body 362 shown in FIG.
Shown respectively. As shown in FIGS. 26A and 26B, a concave portion 3 having a predetermined depth is provided at one position on the upper surface of the ring body 362.
62a are formed. The recess 362a is formed over a range larger than the inner diameter of the through hole 320g2.

[0150] Such a ring body 362 is attached to the sleeve 320d.
FIG. 27 shows a state of the bottom surface of the valve body 320 when the valve body 320 is arranged at the position shown in FIG. As shown in FIG. 27, the ring body 362 is
When arranged at 0d, the eight through holes 320g2 to n2 are covered with the ring body 362. Of these, seven through holes 32
0g2 to j2, l2 to n2 are sealed by the upper surface of the ring body 362, and are in a state where the inflow of water is prohibited. On the other hand, water can flow into one through-hole 320k2 located in the concave portion 362a of the ring body 362 from the gap formed by the concave portion 362a. The inflow direction of this water is shown by a white arrow in FIG.

The flash valve 310 according to the third embodiment having the above-described structure is, similarly to the flash valve 110 according to the second embodiment, operated by the water chamber replenishing mechanism HK after operating the handle 333a. The valve opening period of the valve body 320 is adjusted by varying the amount of water supplied to the valve 320 (hereinafter, referred to as an instantaneous flow rate to the water chamber 322).

The adjustment of the valve opening period is performed by adjusting the eight through-holes 320g2 to n2 having different inner diameters and the through-holes 32g.
This is realized by a non-electrical structure of a ring body 362 covering 0g2 to n2. Specifically, the ring body 362
By changing the relationship between the concave portion 362a and the through holes 320g2 to n2 covered by the concave portion 362a, the opening areas of the holes through which water passes from the first water passage 318a to the water chamber 322 are made different.

For example, when the concave portion 362a of the ring body 362 is arranged at the entrance of the through hole 320n2, the valve body 3
After the valve 20 is opened, the water that has flowed into the lower part of the valve body 320 from the first water passage 318a has a through hole 320n2 having an inner diameter of 0.5 mm.
And flows into the water chamber 322. As a result, about 8.5
One liter of water flows from the first channel 318a to the second channel 318.
b.

On the other hand, the concave portion 362 of the ring body 362
a is disposed at the inlet of the through hole 320g2, the water flowing into the lower part of the valve body 320 from the first water passage 318a after the valve body 320 is opened flows through the through hole 320 having an inner diameter of 1.2 mm.
g2 and flows into the water chamber 322. Therefore, as compared with the case where the concave portion 362a is arranged at the entrance of the through hole 320n2, the water chamber 322 is filled more quickly, and the valve opening period of the valve body 320 is shorter. As a result, a smaller amount of water for about 5 liters is supplied from the first water channel 318a to the second water channel 318b.

According to the flush valve 310 of the third embodiment described above, the valve body 320 is provided with the first water passage 318a.
And the water chamber 322 as a flow path communicating with the valve body 32.
Eight through-holes 320g2 to n2 penetrating through 0 are formed with different cross-sectional areas, and one of the through-holes 320g2 to n2 is formed.
The first water passage 318 is formed using the through holes 320g2 to n2.
Water is supplied to the water chamber 322 from a. Therefore, by changing the through holes 320g2 to n2 used, the first waterway 3
It is possible to change the instantaneous flow from 18a to the water chamber 322. As a result, various amounts of water can be spouted from the spout 316.

Also, the flash valve 31 of the third embodiment
In the case of 0, the change of the through holes 320g2 to n2 to be used is realized by the ring body 362 in which the concave portion 362a is formed at one place. Therefore, just by rotating the ring body 362,
Positional relationship between the recess 362a and the through holes 320g2 to n2,
That is, the through holes 320g2 to n2 to be used can be easily changed.

A description will be given of a fourth embodiment of the present invention. FIG. 28 is an explanatory diagram illustrating a schematic cross section of a flash valve 210 according to the fourth embodiment. The flash valve 210 shown in FIG. 28 has substantially the same components as the flash valve 10 shown in FIG. 1 in the first embodiment. In FIG. 28, the last two digits of the reference numerals for each common part are represented using the same numerals as those in FIG.

On the other hand, the flash valve 21 of the fourth embodiment
At 0, the configurations of the valve opening mechanism ST, the water chamber replenishment mechanism HK, and the valve closing mechanism ED are different from those of the flash valve 10 of the first embodiment.

First, the configuration of the valve opening mechanism ST for opening the valve body 220 in the closed state will be described. In the flush valve 210 of the fourth embodiment, the water inlet 272A and the water outlet 272B, the auxiliary water channel opening / closing valve mechanism 276, and the handle 23
The operation unit 233 including 3a, the support rod 233b, and the return mechanism 233c corresponds to a valve opening mechanism ST that is a mechanism that opens the valve body 220 in a closed state.

That is, as shown in FIG. 28, the inside of the pipe 212 penetrates from the upper wall of the water chamber 222 to the top surface 212b above the upper wall to form the water inlet 272A.
Are formed. Inlet channel 2 located on top surface 212b
One end of a connecting pipe 217 having a water outlet 272B inside is connected to the outlet of 72A using a nut 219a. The other end of the connecting pipe 217 is connected to a second water path 218b,
It is connected using a nut 219b. The water chamber 222 and the second water passage 218b communicate with each other through the water inlet passage 272A and the water discharge passage 272B. This waterway 272A
And the outflow channel 272B are defined as “sub-channels” in the claims.
Is equivalent to

As shown in FIG. 28, a sub-channel opening / closing valve mechanism 276 is provided in the middle of the connecting pipe 217. The auxiliary waterway opening / closing valve mechanism 276 is similar to the auxiliary waterway opening / closing valve mechanism 76 including the upper disk plate 76b and the lower disk plate 76a in the first embodiment, and the water in the water chamber 222 is operated in accordance with the operation of the handle 233a. The outflow into the two water channels 218b is started, the valve body 220 in the closed state is opened, and after a predetermined period has elapsed since the operation of the handle 233a, the water chamber 222 is opened.
The outflow of water from the to the second water channel 218b is stopped.

However, the auxiliary water channel opening / closing valve mechanism 276 is a mechanism that can adjust the timing of stopping the outflow of water from the water chamber 222 to the second water channel 218b in two ways. The channel opening / closing valve mechanism 76 is different. This point will be described later together with the structure of the sub-channel opening / closing valve mechanism 276.

In the fourth embodiment, the water outlet 272B
Is provided by providing the connecting pipe 217 outside the pipe 212, but without providing such a connecting pipe 217,
A configuration may be adopted in which a flow path that connects the water chamber 222 and the second water path 218b is formed inside the pipe 212.

In the flush valve 210 according to the fourth embodiment, the water chamber replenishing mechanism HK and the valve closing mechanism ED, which are two mechanisms for closing the opened valve element 220, are configured as follows. . As shown in FIG. 28, the valve body 220 of the flash valve 210 is provided with one through hole 220g penetrating from the top 220c to the sleeve 220d. The through hole 220 forms a water flow path that connects the first water passage 218a and the water chamber 222. That is, the water flowing from the first water passage 218a into the main water passage 218c after the valve body 220 is opened flows into the water chamber 222 through the through hole 220g. That is, in the fourth embodiment, the through hole 220g corresponds to the water chamber replenishment mechanism HK, which is one mechanism for closing the valve body 220 in the open state.

On the other hand, in the fourth embodiment, a valve closing mechanism ED, which is another mechanism for closing the opened valve element 220, is provided.
Is constituted by the sub-channel opening / closing valve mechanism 276 described above. That is, the sub-channel opening / closing valve mechanism 276 has both a role of opening the valve body 220 in a closed state and a role of closing the valve body 20 in an open state. Hereinafter, this secondary water channel opening and closing valve mechanism 2
The structure of 76 will be described.

FIG. 29 is an explanatory view showing a vertical cross section of the sub-channel opening / closing valve mechanism 276. FIG. 29 shows the auxiliary waterway opening / closing valve mechanism 276 in a closed state. As shown in FIG. 29, a valve chamber 270 is formed in the middle of the connection pipe 217 so as to be integral with the connection pipe 217. This valve chamber 270
Are a top chamber 270a continuous with the water discharge passage 272B in the connecting pipe 217, and a disc chamber 27 continuous with the top chamber 270a.
0b. The top packing 270a contains a top packing 2
78 are stored in the disk chamber 270b, and the disk plate 277, the return mechanism 233c, and the support rod 233b
Is partially stored.

As shown in FIG. 29, a communication hole 271 for connecting water flowing from the water chamber 222 to the second water channel 218b is formed in the top chamber 270a. The drainage channel 272B is separated from the communication hole 271,
It is divided into a first water passage 272Ba upstream of the first water passage 1 and a second water passage 272Bb downstream of the valve chamber 270.

The packing part 278a, which is a part of the top packing 278, is connected to the first water passage 272B through the communication hole 271.
a. In the closed state of the sub-channel opening / closing valve mechanism 276 shown in FIG. 29, the packing portion 278 a in close contact with the inner wall of the first water channel 272 Ba closes the communication hole 271. By setting the top packing 278 in such a state, the outflow of water from the first water passage 272Ba to the second water passage 272Bb is prohibited.

From the state shown in FIG.
When 78a is separated from the inner wall of the first water channel 272Ba and the communication hole 271 is opened (see FIG. 33 described later), a gap is formed between the communication hole 271 and the top packing 278. As a result, the secondary water channel opening / closing valve mechanism 276
Is in a valve open state, and the water in the first water passage 272Ba blocked by the top packing 278 enters the top chamber 270a through the gap, and thereafter, the second water passage 218b passes through the second water passage 272Bb. Leaked to

As shown in FIG. 29, a projection 270at is formed in the top chamber 270a by protruding a part of the inner peripheral wall inward. The top surface 270at1, which is the innermost surface of the projection 270at, has
An O-ring 244 having a predetermined thickness is embedded, and the O-ring 244 is in close contact with the outer periphery of the top packing 278. With this structure, the water that has entered the top chamber 270a due to the opening of the sub-channel opening / closing valve mechanism 276 is prevented from entering the disk chamber 270b.

One end of a spring 279 is mounted on the side surface 270at2 of the projection 270at on the disk chamber 270b side. The springs 279 are mounted at four positions on the side surface 270at2, and FIG. 29 shows two mounting positions. The four springs 279 are urged in the direction of the disk chamber 270b, and the other end of each spring 279 presses a wide arm 278c formed near the tip 278b of the top packing 278. .

The top chamber 270a and the disc chamber 270b are separated by a partition wall 270c, which is larger than the tip 278b of the top packing 278, as shown by a dotted line in FIG. 270 cp hole
Is provided. The position where the hole 270cp is provided will be described later. Secondary water channel opening and closing valve mechanism 2 shown in FIG.
In the valve-closed state of 76, the arms 2
When the top packing 78c is pressed, the top packing 278 is pressed.
The arm part 278c is pressed against the partition wall 270c, and the tip part 278b projects into the disk chamber 270b through the hole 270cp.

A disk plate 277 is rotatably mounted on the side surface 270d of the partition wall 270c on the disk chamber 270b side. A support rod 233b connected to the handle 233a is mounted on the center of rotation of the disk plate 277. Thus, the support bar 233b and the disk plate 277 rotate with the rotation of the handle 233a. Further, a return mechanism 233c including a leaf spring 233d is mounted on the support rod 233b. Accordingly, the rotated support rod 233b and the disk plate 277 are moved by the return mechanism 233c.
Is returned to the state before the rotation by the elastic force of the leaf spring 233d built in.

FIG. 30 shows the shape of the upper surface of the disk plate 277. 30. In FIG. 30, the disk chamber 270b is cut at the position of the line segment LL shown in FIG.
(From the right side of FIG. 1). As shown in FIG. 30, the disk plate 277 has a large-diameter semicircular portion 277a in the right half and a small-diameter semicircular portion 27 in the left half.
7b. This disk plate 277 rotates right and left around a center point O shown in FIG. Return mechanism 233
The centers of c and the support bar 233b are concentric with the center point O.

As shown by a broken line portion UR in FIG. 30, a recess 277ah, which is a portion recessed to a predetermined depth, is formed at a position away from the center point O on the back side of the semicircular portion 277a. The top packing 278 protruding into the disc chamber 270b through the hole 270cp of the partition wall 270c described above.
Is stored in the recess 277ah.

At the broken line part UR, the top packing 278
The state in which the front end portion 278b is stored in the recess 277ah will be described with reference to FIG. FIG. 31 shows a cross section when the inside of the disk chamber 270b is cut along the line segment SS shown in FIG. As shown in FIG. 31, the top packing 278
The tip portion 278b of the hole 2 is formed by pressing the arm portion 278c in the direction of the disk chamber 270b by the spring 279.
70 cp and protrudes into the disk chamber 270 b. A tip 278b protruding into the disc chamber 270b
Is completely covered by the recess 277ah. In this manner, when the sub-channel opening / closing valve mechanism 276 is closed, the leading end 278b of the top packing 278 and the recess 277ah are in a positional relationship to overlap. The position of the disk plate 277 in such a positional relationship is hereinafter referred to as a neutral position.

From the neutral position to the disk 2
Tip 2 of top packing 278 when 77 is rotated
The state of 78b is shown in FIG. By operating the handle 233a, the disc plate 277 attached to the support rod 233b is operated.
Is rotated, the position of the recess 277ah moves in the rotation direction. Thereby, the flat back surface of the disk plate 277 is arranged on the hole 270cp. Therefore, the holes 270
The tip 278b projecting from the cp into the disc chamber 270b is pushed down in the direction of the top chamber 270a by the flat back surface of the disc plate 277 against the elastic force of the spring 279. Thereby, the packing part 278a is separated from the inner wall of the first water channel 272Ba, and a gap is formed between the communication hole 271 and the top packing 278 as shown in FIG. As a result, the sub-channel opening / closing valve mechanism 276 is opened, and as shown by the arrow in FIG.
The water in Ba is in a state where it can flow through the second water outlet 272Bb.

Returning to FIG. 30, the description will be continued. On the side surface 270d on the semicircular portion 277b side from the center point O, the side surface 270d
Two protrusions 281a, 2 erected at a predetermined height from
81b are provided. Each protrusion 281a, 281b
Are provided on the rotation locus of the semicircular portion 277a at a predetermined distance from the upper and lower end surfaces 277au and 277ad. The distances between the end surfaces 277au and 277ad are different between the protrusion 281a and the protrusion 281b. That is, as shown in FIG.
Θ1 formed by a line segment PP connecting the lower end surface 277ad and a line segment QQ connecting the center point O and the protruding portion 281a.
Is about 45 °, and the center point O and the upper end surface 277au
And a line segment QQ connecting the center point O and the protruding portion 281b forms an angle θ2 of about 30 °. Accordingly, the disk plate 277 rotates approximately 45 ° clockwise from the neutral position and approximately 30 ° counterclockwise from the neutral position. Further rotation is prevented by collision between the end surfaces 277ad, 277au and the protruding portions 281a, 281b.

As shown in FIG. 30, a large number of teeth are formed on the outer periphery of the semicircular portion 277a of the disk plate 277. Some of the teeth are oil dampers 28
0 meshes with the teeth formed on the side surface of the hydraulic rotating portion 280c. The disc plate 277 rotates slowly under the control of the hydraulic pressure of the hydraulic rotating unit 280c while the above-mentioned teeth mesh with each other. Therefore, after releasing the handle from the handle 233a after the operation of the handle 233a, the return mechanism 233 is operated.
A certain resistance is given to the rotation of the disk plate 277 by the action of c. As a result, the disc plate 277 slowly returns to the original position. At this time, when operating the handle 233a, by providing a clutch mechanism that allows the disk plate 277 to rotate independently of the hydraulic rotation unit 280c, a comfortable handle operation without any resistance can be achieved.

FIG. 33 shows the positional relationship between the disk plate 277 and the handle 233a shown in FIG. When the disc plate 277 is in the neutral position, the handle 233a is in a position as shown in FIG. This position is hereinafter referred to as a neutral position. When the handle 233a at the neutral position is operated in the clockwise direction of large cleaning, the handle 233a is rotated by about 45 ° due to the restriction of the protrusion 281a, and is operated in the counterclockwise direction of small cleaning. Then, the handle 23
3a is rotated by about 30 ° due to the restriction of the protrusion 281b. Thereafter, when the hand is released from the handle 233a, the return mechanism 233c operates. In this case, the handle 233a
Returns to the neutral position at the same speed in both large washing and small washing by the action of the oil damper 280.

The structure of the sub-channel opening / closing valve mechanism 276 has been described above. The valve chamber 270 is connected to the connecting pipe 21.
7 may be provided as a separate member, and attached to the connecting pipe 217 with a nut or the like. By doing so, the packing portion 278a of the top packing 278 and the O-ring 24
4, when the disk plate 278 is worn,
a and the disk chamber 270b can be replaced, and the work involved in the replacement is facilitated. Also, the return mechanism 23
The mechanism for imparting a certain resistance to the rotation of the disk plate 277 by the action of 3c is not limited to the oil damper, and the mechanism for returning the disk plate 277 to the extent necessary to maintain the opening of the sub-channel opening / closing valve is provided. Other mechanisms, such as an air damper and a mainspring mechanism, can be used as long as the mechanism regulates the rotation speed of the motor.

The flash valve 210 of the fourth embodiment configured as described above adjusts the valve opening period of the valve element 220 to one of a plurality of predetermined periods. The means is defined as a period during which the water in the water chamber 222 flows out to the second water channel 218b after the operation of the handle 233a (hereinafter referred to as a period during which the water flows from the water chamber 222 to the second water channel 218b). Is realized by making them different. From this water chamber 222 to the second waterway 2
The relationship between the outflow period to 18b and the valve opening period of the valve body 220 is shown in the graph of FIG.

The upper graph in FIG. 34 shows the relationship between the outflow period from the water chamber 222 to the second water channel 218b and the instantaneous flow rate of the outflow water. The instantaneous flow rate from the water chamber 222 to the second water passage 218b is substantially equal in the case of large cleaning (polyline HD) and in the case of small cleaning (polyline HS). When the sub-channel opening / closing valve mechanism 276 is opened, the communication hole 271 and the top packing 2
This is because the size of the gap formed between the first cleaning and the second cleaning is the same in the case of large cleaning and the case of small cleaning.

On the other hand, the outflow period from the water chamber 222 to the second water channel 218b is the case of small washing (until after the elapse of the time T).
Is shorter than in the case of large washing (until after the elapse of the time T). That is, as shown in FIGS. 30 and 33, in the case of the small cleaning, the rotation of the disk plate 277 due to the operation of the handle 233a is about 15 ° more than in the case of the large cleaning.
Less. On the other hand, the handle 233a returns to the neutral position at the same speed in both large washing and small washing by the action of the oil damper 280. For this reason, the disk plate 27
In the case of small cleaning with a small rotation angle of 7, the position returns to the neutral position earlier. Therefore, in the case of small cleaning, the tip portion 278b of the top packing 278 is stored in the recess 277ah early, and the communication hole 271 is closed early by the top packing 278a. As a result, in the case of small washing, the first flood channel 272
The period during which the outflow of water from Ba to the second outflow channel 272Bb is allowed is shortened, and water cannot flow out to the second outflow channel 218b early after the operation of the handle 233a.

As described above, the second water passage 218 extends from the water chamber 222.
b, when water cannot flow into the water chamber 222
Water starts to accumulate inside. Therefore, the water supplied to the water chamber 222 from the first water passage 218a through the through hole 220g after the valve body 220 is opened due to the operation of the handle 233a is shown in FIG.
As shown in the middle graph of FIG. 4, in the case of the small cleaning, after the lapse of the time T (see the broken line WS), and in the case of the large cleaning, after the lapse of the time T (see the broken line WD), the water chamber 2
Start to accumulate in 22. The water from the first water channel 218a
Since the water flows into the water chamber through one through hole 220g, the instantaneous flow rate of water into the water chamber 222 is the same in the case of large washing and the case of small washing. For this reason, in any of the large washing and the small washing, the water chamber 222 becomes full when the same time has elapsed since the water started to accumulate in the water chamber 222.
Therefore, as shown in the middle graph of FIG.
In the case of the small cleaning, 2 is an early time after the start of the cleaning (time T
The water chamber 222 becomes full at the time of (after the elapse of the time T), and in the case of the large washing, it is later than the case of the small washing (when the time T has elapsed)
It becomes full.

As a result, in the case of small washing, the valve opening period of the valve body 220 is shortened (between 0 and T), and as shown in the lower graph of FIG.
The total amount of water supplied to 18b is a small value of 4.5 liters. On the other hand, in the case of large washing, the valve opening period becomes longer (between 0 and T), and the first water channel 218a
, The total amount of water (total flow rate Q) supplied to the second water channel 218b becomes a large value of 6 liters.

According to the flash valve 210 of the fourth embodiment described above, the valve opening period of the valve body 20 is adjusted to one of a plurality of periods. Therefore, as in the first and second embodiments, the total amount of water discharged from the water outlet 16 is
It can be controlled in multiple ways.

In the flush valve 210 of the fourth embodiment, the adjustment of the valve opening period of the valve element 220 is performed by the water chamber 222.
This is performed by adjusting the outflow period from the to the second water passage 218b by the sub water passage opening / closing valve mechanism 276. Therefore, the total amount of water discharged from the water outlet 216 can be reliably controlled.

In the flush valve 210 of the fourth embodiment, the outflow period from the water chamber 222 to the second water passage 218b is adjusted by adjusting the period from when the auxiliary water passage opening / closing valve mechanism 276 is opened to when it is closed. It is done by doing. Specifically, by setting the rotation angle of the disk plate 277 in accordance with the operation of the handle 233a to be different between the large cleaning and the small cleaning, the time required for the disk plate 277 to return to the neutral position before the operation is reduced. Make it different. Such a structure is realized by a non-electrical mechanical structure. Therefore, it is possible to install a flash valve capable of discharging a plurality of types of water amount even in a place where there is no power supply, and the versatility of the flash valve can be improved.

The flash valve 210 of the fourth embodiment is
A water passage 272B that connects the water chamber 222 and the second water passage 218 outside the pipe 212 is provided.
In the middle of B, the sub-channel opening / closing valve 276 is
2 is provided. Therefore, the vicinity of the valve body 220 and the water chamber 222 does not have a complicated configuration in order to discharge a plurality of amounts of water.

Also, the flash valve 21 of the fourth embodiment
0 switches the valve-opening period of the valve element 220 in accordance with the operation of the operation unit 233 for starting water discharge from the water discharge port 216. That is, the start of water discharge and the adjustment of the total amount of water discharged are realized by one operation. Therefore, there is no need to perform another operation to adjust the water discharge amount, and the usability is improved.

The embodiments of the present invention have been described with reference to the examples. The present invention is not limited to such embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

For example, in the first and fourth embodiments, the total amount of water spouted from the spout 16 is automatically switched according to the operation direction of the handle 33a, ie, small washing, in case of large washing. However, regardless of such a configuration, an operation unit (driving operation unit) for starting water discharge from the water discharge port 16 and an operation unit (opening / closing amount selection) for adjusting the total amount of water to be discharged are adopted. ) May be provided separately.

In the above embodiments, the handle 33a
Of the water in the water chamber 222 along with the operation of the second water passage 218b.
The valve body 20 is opened by flowing into the water chamber 2.
It is good also as a structure which makes the water in 22 flow out to places other than the 2nd waterway 218b. For example, a configuration in which the water in the water chamber 222 is discarded into a flush toilet to which the flush valve 10 is connected and flows out as water can be considered.

It is also possible to grasp the present invention as a water amount control device and to implement the invention in the form of a water amount control unit incorporated in the flash valve 10.
For example, a configuration can be considered in which the connecting pipe 217, the sub-channel opening / closing valve mechanism 276, and the operation unit 233 in the fourth embodiment are configured as a water amount control unit, and this water amount control unit is connected to another flash valve device. .
In this way, by installing the water amount control unit on the existing flash valve, it is possible to change the flash valve that could only discharge water with one amount of water to a flash valve that can discharge water with multiple amounts of water Can be.

It is also possible to grasp the present invention as a disk mechanism and to implement the invention in the form of a disk mechanism incorporated in the flash valve 10. For example, the opening / closing amount control valve mechanism 36 in the first embodiment, the fourth
It can be considered that the sub-channel opening / closing valve mechanism 276 in the embodiment is configured as one disk mechanism. In this case, by replacing the disk mechanism, it is possible to maintain the function of discharging water at a plurality of water discharge amounts.

[Brief description of the drawings]

FIG. 1 shows a flash valve 1 according to a first embodiment of the present invention.
It is explanatory drawing showing the schematic cross section of 0.

FIG. 2 is an explanatory view showing the shape of each member housed or inserted into a concave portion 12c.

FIG. 3 is an explanatory diagram showing an upper surface and a lower surface of a lower disk plate 36a.

FIG. 4 is an explanatory diagram showing an upper surface and a lower surface of an upper disk plate 36b.

FIG. 5 is an explanatory diagram showing an upper surface and a lower surface of a lower disk plate 76a.

FIG. 6 is an explanatory diagram showing an upper surface and a lower surface of an upper disk plate 76b.

FIG. 7 is an explanatory view showing a state of a sub-channel opening / closing valve mechanism 76 when the handle 33a is operated in the direction of large washing from the closed state of the valve body 20 shown in FIG.

FIG. 8 is an explanatory diagram showing a state of an opening / closing amount adjustment valve mechanism 36 in a closed state of the valve body 20 shown in FIG.

FIG. 9 is an explanatory diagram showing a state of the support bar 33b and the moving body 36c when the handle 33a is operated in the direction of small cleaning.

FIG. 10 is an explanatory diagram showing a state of a support rod 33b and a moving body 36c after a handle 33a after operation is released.

FIG. 11 is an explanatory diagram showing a route in which water is supplied to the water chamber 22 in accordance with the operation of the handle 33a.

FIG. 12 is a graph showing a relationship between a valve opening period and an instantaneous flow rate to the water chamber 22.

FIG. 13 shows respective outflow holes 36aO1 to 36aO1 of the lower disk plate 36a.
It is explanatory drawing which shows the relationship between the internal diameter D of O8, and the total flow volume Q of the water supplied from the 1st water channel 18a to the 2nd water channel 18b.

14 is an explanatory diagram showing a state of the opening / closing amount control valve mechanism when the handle 33a is operated in the direction of large washing from the state after the end of the small washing operation shown in FIG.

FIG. 15 shows a case where the water outlet 32B has eight outlet holes 36aO1-3.
It is explanatory drawing which shows the structural example which overlaps with two holes of 6aO8.

FIG. 16 is a view showing a state where the lower disc plate 36a is rotated, and
It is explanatory drawing which shows the example arrange | positioned at the bottom of 2c as a 1st modification.

FIG. 17 is a view showing a state where the lower disk plate 36a is turned upside down and
It is explanatory drawing which shows the example arrange | positioned at the bottom of c as a 2nd modification.

FIG. 18 is an explanatory diagram showing, as a third modification, an example in which only one outflow hole is arranged in a recessed portion 36bK of an upper disk plate 36b.

FIG. 19 is an explanatory diagram showing, as a fourth modification, an example in which three outflow holes are arranged in a recessed portion 36bK of an upper disk plate 36b.

FIG. 20 is an explanatory diagram showing a schematic cross section of a flash valve 110 according to a second embodiment of the present invention.

FIG. 21 is an explanatory diagram showing an upper surface and a lower surface of a valve body 120.

FIG. 22 shows the valve element 120 when the selection member 162 is mounted.
It is explanatory drawing which shows the bottom surface of.

FIG. 23 is an explanatory diagram showing the relationship between the inner diameter D of each through hole 120g2 to n2 of the valve body 120 and the total flow rate Q of water supplied from the first water passage 118a to the second water passage 118b.

FIG. 24 is an explanatory diagram showing a schematic cross section of a flash valve 310 according to a third embodiment of the present invention.

FIG. 25 is an explanatory diagram showing an upper surface and a bottom surface of a valve body 320.

FIG. 26 is an explanatory diagram showing an appearance of a ring body 362.

FIG. 27 shows a valve body 320 when a ring body 362 is arranged.
It is explanatory drawing which shows the bottom surface of.

FIG. 28 is an explanatory view showing a schematic cross section of a flash valve 210 according to a fourth embodiment of the present invention.

FIG. 29 is an explanatory diagram showing a vertical cross section of a sub-channel opening / closing valve mechanism 276.

30 is a diagram showing a disk chamber 270b taken along a line segment L- shown in FIG. 29;
It is explanatory drawing which shows the state when it cut | disconnects at the position of L and sees this from the front.

FIG. 31 shows a line segment S shown in FIG. 30 inside the disk chamber 270b.
It is explanatory drawing which shows the cross section when cut | disconnected by -S.

FIG. 32: From the neutral position to the disc plate 27
Tip 27 of top packing 278 when 7 is rotated
It is explanatory drawing which shows the mode of 8b.

FIG. 33 is an explanatory diagram showing a positional relationship between a disk plate 277 and a handle 233a.

FIG. 34 is a graph showing a relationship between a period during which water in the water chamber 222 flows out to the second water channel 218b and a valve opening period of the valve body 220.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Flash valve 12 ... Tube 12a ... Side wall 12b ... Top surface 12c ... Concave part 13 ... Seat part 14 ... Water supply port 15 ... Partition material 15a ... Groove 15e ... Opening 16 ... Water discharge port 17 ... Connection pipe 18 ... Supply water channel 18a ... First waterway 18b ... Second waterway 18c ... Main waterway 19a ... Nut 19b ... Nut 20 ... Valve body 20a ... Step 20b ... Side 20c ... Top 20d ... Sleeve 21 ... Rubber packing 22 ... Water chamber 22a ... Protrusion 24 ... Lid 24e ... Through hole 32 ... Communication channel 32A ... Inlet channel 32B ... Outlet channel 33 ... Operation part 33a ... Handle 33b ... Support rod 33bK ... Notch 33c ... Return mechanism 33d ... Leaf spring 36 ... Opening / closing amount adjusting valve mechanism 36a: Lower disc plate 36aI: Inlet holes 36aO1-O8: Outlet holes 36b: Upper disc plate 36bE: Opening 36bK: Concave portion 36bT: Convex portion 6c: Moving body 36cK: Engagement projection 36cM: Groove 39: Hole 40: O-ring 41: O-ring 42: O-ring 72A: Water inlet channel 72Aa: Through channel 72Ab: Through channel 72AbO: Outlet 72B: Water channel 72Ba: Through Path 72BaI Inlet 72Bb Internal flow path 76 Sub-channel opening / closing valve mechanism 76a Lower disk plate 76aE Opening 76aM Groove 76b Upper disk plate 76bR1 to 76bR4 Distribution hole 76bS Opening 90 90 Toilet bowl 92 ... water supply pipe 110 ... flash valve 114 ... water supply port 116 ... water discharge port 117 ... connecting pipe 118a ... first waterway 118b ... second waterway 120 ... valve body 120a ... step portion 120c ... top portion 120d ... sleeve portion 120g1-n1 ... concave portion 120g2 to n2: through hole 121: rubber packing 122: water chamber 132: communication channel 33a ... handle 133b ... support rod 133c ... return mechanism 162 ... selection member 162g-n ... coating body 164 ... communication hole 172A ... water passage 172Aa ... through passage 172Ab ... penetration passage 172AbO ... exit 172B ... water passage 172Ba ... penetration passage 172BaI ... Inlet 172Bb Internal flow channel 176b Upper disk plate 176a Groove 176a Lower disk plate 176 Sub-channel opening / closing valve mechanism 176bR1 Flow hole 176aM Groove 210 Flash valve 212 Tube 212b Top surface 216 Water outlet 217 ... connecting pipe 218a ... first water path 218b ... second water path 218c ... main water path 219a ... nut 219b ... nut 220 ... valve element 220c ... top part 220d ... sleeve part 220g ... through hole 222 ... water chamber 233 ... operation part 233a ... handle 233b ... support rod 233 c ... return mechanism 233d ... leaf spring 244 ... O-ring 270 ... valve chamber 270a ... coma chamber 270at ... convex 270at1 ... top surface 270at2 ... side surface 270b ... disk room 270c ... partition wall 270cp ... hole 270d ... side surface 271 ... communication hole 272A ... Inlet channel 272B ... Outlet channel 272Ba ... First outflow channel 272Bb ... Second outflow channel 274 ... Opening degree adjustment operation part 276 ... Sub-channel opening / closing valve mechanism 277 ... Disk plate 277a ... Semicircle part 277b ... Semicircle part 277ah ... Concave Place 277ad ... End surface 277au ... End surface 278 ... Packing 278a ... Packing part 278b ... Tip 278c ... Arm part 279 ... Spring 280 ... Oil damper 280c ... Hydraulic rotating part 281a ... Protruding part 281b ... Protruding part 310 ... Flush valve 314 ... Water supply Mouth 316 ... spout 317 ... connecting pipe 318a ... first water path 318b ... second water path 320 ... valve element 320a ... step part 320c ... top part 320d ... sleeve part 320d ... contact step part 320g2-n2 ... through hole 321 ... rubber packing 322 ... water chamber 325 ... Screw part 332 ... Communication flow path 333a ... Handle 333b ... Support rod 333c ... Return mechanism 362 ... Ring body 362a ... Recess 364 ... Communication hole 365 ... Cap 372A ... Water intake path 372Aa ... Through path 372Ab ... Through path 372AbO ... Exit 372B ... Exit Water passage 372Ba ... Through passage 372BaI ... Inlet 372Bb ... Internal flow passage 376b ... Upper disk plate 376a ... Groove 376a ... Lower disk plate 376 ... Sub-channel opening / closing valve mechanism 376bR1 ... Flow hole 376aM ... Groove ED ... Valve closing mechanism HK ... Water chamber supply Mechanism ST: Valve opening mechanism

Continuation of the front page (72) Inventor Yasushi Sugita 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Tochiki Kiki Co., Ltd. (72) Takayuki Otani 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka No. 1 Toto Kiki Co., Ltd. (72) Inventor Atsutaka Suehiro 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka F-term in Toko Kiki Co., Ltd. (Reference) CC13 DD09 EE05 FF17 3H056 AA03 BB24 CA02 CB03 CC03 CD06 DD02 EE10 GG05 GG11

Claims (32)

[Claims] 1. A valve having a supply channel for supplying water supplied from a water supply port to a water discharge port, a valve element for opening and closing the supply channel, and a water chamber functioning as a back pressure chamber of the valve element. When the valve is closed, the water supply device is a water supply device in which the supply water passage is divided into a first water passage upstream of the valve body and a second water passage downstream of the valve body, and the water chamber through a sub water passage communicating the water chamber and the second water passage. A valve opening mechanism that opens the valve element by causing water to flow out into the second water channel, a water chamber replenishment mechanism that replenishes the water chamber with water from the first water channel, and water that flows through the sub water channel. A valve closing mechanism for closing the valve element by stopping the outflow and supplying water to the water chamber by the water chamber replenishing mechanism, wherein the valve element is opened and then closed. A valve opening period, which is a period until the valve is opened, is defined as one of a plurality of predetermined periods. Water supply apparatus comprising the valve opening period adjusting means for adjusting the. 2. The valve opening period adjusting means is means for adjusting the valve opening period by a mechanical structure.
A water supply device according to item 1. 3. The water supply device according to claim 1, further comprising a replenishing water amount adjusting means for adjusting a replenishing water amount supplied to the water chamber per unit time by the water chamber replenishing mechanism in a plurality of ways. Water supply device characterized by that. 4. The water supply device according to claim 3, wherein the replenishment water amount adjusting means includes a communication channel that is a channel that connects the first water channel and the water chamber; A water supply device comprising an opening / closing amount control valve for adjusting an opening / closing amount. 5. The water supply device according to claim 4, wherein the opening / closing amount of the communication flow path by the opening / closing amount control valve is selected to be one of a plurality of predetermined opening / closing amounts. A water supply device comprising a part. 6. The water supply device according to claim 5, wherein the replenishing water amount adjusting means is configured by using a disk plate having one or more holes, and is selected by the opening / closing amount selecting unit. Based on the opening and closing amount
The water supply device according to claim 1, wherein the replenishing water amount is adjusted by changing an area where a hole formed in the disc plate and the communication flow path overlap. 7. The water supply device according to claim 6, wherein two or more holes having different opening areas are provided in the disk plate, and the supply water amount adjusting means is selected by the opening / closing amount selection unit. A water supply device for adjusting the amount of makeup water by selectively overlapping the two or more holes with the communication flow path based on the opening / closing amount. 8. The water supply device according to claim 6, wherein an area where the disk plate and the communication flow path overlap each other can be changed by rotating the disk plate, and wherein the disk plate A water supply device provided with three or more holes having different opening areas in the order of the opening areas. 9. The water supply device according to claim 7, wherein the disk plate is configured to be detachable, and the shape of the disk plate and a communication channel in which the disk plate is arranged is changed by changing the shape of the disk plate. Even when rotated or turned over, the disc plate is formed in a shape that can be arranged, and at a predetermined position of the disc plate, a combination of two or more holes having different opening areas is provided as a first combination. In a position corresponding to the predetermined position when the disc plate is rotated or turned over, two or more holes having different opening areas that are different from the first combination are used as a second combination. Water supply equipment provided. 10. The water supply device according to claim 9, wherein the two or more holes in the second combination are arranged in the order of the opening areas of the two or more holes in the first combination. 11. The water supply device according to claim 3, wherein a plurality of communication channels, which are channels that communicate the first water channel and the water chamber, are provided with different cross-sectional areas via the valve body. The water supply device, wherein the replenishing water amount adjusting means adjusts a replenishing water amount to the water chamber by changing a communication channel used among the plurality of communication channels. 12. The water supply device according to claim 11, further comprising a selection member for selecting one or more communication channels used from the plurality of communication channels. 13. The water supply device according to claim 12, further comprising identification means for identifying a difference in a cross-sectional area of the communication flow path. 14. The water supply device according to claim 13, wherein the selection member is a cover that covers the communication channel, and the cover is attached and detached for each communication channel that the cover covers. The identification unit is configured to identify the difference in the cross-sectional area of the communication channel by changing the appearance of each of the coverings according to the size of the cross-sectional area of the communication channel. Is a water supply. 15. The water supply device according to claim 11, wherein the communication flow path is a through-hole penetrating the valve body and communicating the first water passage with the water chamber. 16. The water supply device according to claim 1, wherein a plurality of predetermined outflow periods are set in which the water in the water chamber flows out to the second water passage through the sub water passage by the valve opening mechanism. A water supply device comprising an outflow period adjusting means for adjusting during a period of time. 17. The water supply device according to claim 16, wherein the valve opening period adjusting means adjusts the valve opening period according to the outflow period adjusted by the outflow period adjusting means. 18. The water supply device according to claim 16, wherein the valve-opening mechanism is configured such that a sub-channel opening / closing valve provided in the middle of the sub-channel and the sub-channel opening / closing valve are predetermined. An opening adjustment operation unit that opens at one of the plurality of openings, and a sub-channel opening / closing valve closing unit that closes the opened sub-channel opening / closing valve, wherein the outflow period adjustment is performed. The water supply device, wherein the means changes a period from opening to closing of the sub waterway opening / closing valve according to an opening degree of the sub waterway opening / closing valve. 19. The water supply device according to claim 18, wherein at least a part of the sub-channel is a channel that connects the water chamber and the second channel outside the pipe body. A water supply device provided with a flow path, wherein the sub-channel opening / closing valve is provided in the middle of the external communication flow path; 20. The water supply device according to claim 1, wherein the valve opening mechanism includes a start operation unit that is an operation unit for opening the valve body. The water supply device, wherein the period adjusting means adjusts the valve opening period based on an operation of the activation operation unit. 21. An operation of adjusting the opening / closing amount of the opening / closing amount control valve based on the opening / closing amount selected by the opening / closing amount selection unit by operating the start operation unit.
0. The water supply device according to any one of 0. 22. The water supply device according to claim 18, wherein the opening operation of the sub waterway opening / closing valve based on the operation of the opening degree adjustment operation unit is realized by the operation of the start operation unit. 23. The water supply device according to claim 20, wherein the activation operation unit instructs a start of water supply from the first water channel to the second water channel by one operation,
An operation unit for instructing one of a plurality of total water amounts defined as a total amount of water supplied from the first water passage to the second water passage, wherein the valve-opening period adjusting means performs the start-up operation. A water supply device that adjusts the valve opening period according to one total water amount instructed by an operation of the unit. 24. The water supply device according to claim 23, further comprising a replenishing water amount adjusting means for adjusting a replenishing water amount replenished to the water chamber per unit time by the water chamber replenishing mechanism in a plurality of ways. The water supply device, wherein the water supply amount adjusting means adjusts the water supply amount in accordance with one total water amount instructed by operating the activation operation unit. 25. The water supply device according to claim 23, wherein the valve opening mechanism causes a plurality of predetermined outflow periods during which water in the water chamber flows out to the second water passage through the sub water passage. A water supply device, comprising: an outflow period adjusting unit that adjusts the outflow period according to one total water amount instructed by operating the start operation unit. 26. The water supply device according to claim 23, wherein the activation operation unit preliminarily defines two types of water amounts for large flushing and small flushing as the flushing water amount for the toilet. 27. The water supply device according to claim 1, wherein the water supply device is a device connected between a water supply pipe for supplying water from a water supply source and a toilet. A flush toilet provided with the water supply device according to any one of claims 1 to 26. 29. A valve body comprising: a supply channel for supplying water supplied from a water supply port to a water discharge port; a valve for opening and closing the supply channel; and a water chamber functioning as a back pressure chamber of the valve. When the valve is closed, the supply water passage is connected to a water supply device that is divided into a first water passage upstream of the valve body and a second water passage downstream of the valve body, and is a water amount control device that controls a water supply amount by the water supply device, A valve opening mechanism that opens the valve body by causing water in the water chamber to flow out to the second water passage through a sub water passage that communicates the water chamber and the second water passage; and from the first water passage to the water chamber. A water chamber replenishment mechanism for replenishing water, and a valve closing mechanism for closing the valve body by stopping outflow of water through the sub-water channel and replenishing water to the water chamber by the water chamber replenishment mechanism. And a valve opening period, which is a period from when the valve element is opened to when it is closed, is defined in advance. Water control apparatus characterized by comprising a valve opening period adjusting means for adjusting the one period of the time period of the plurality of ways. 30. The water amount control device according to claim 29, wherein the valve opening mechanism includes a start operation unit that is an operation unit for opening the valve body, and the valve opening period adjusting unit includes: A water amount control device that adjusts the valve opening period to one of a plurality of periods based on an operation of the activation operation unit. 31. A disc mechanism provided in the water amount control device according to claim 29, wherein the water amount supplied to the water chamber per unit time by the water chamber supply mechanism is adjusted in a plurality of ways. Disk mechanism. 32. A disc mechanism provided in the water amount control device according to claim 29, wherein a period during which the water in the water chamber flows out to the second water passage through the sub-water passage by the valve opening mechanism is provided. A disk mechanism that adjusts for multiple predefined periods.