JP2582345Y2 - Float valve device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outflow valve device of a low tank for supplying flush water to a toilet bowl, and more particularly to a float valve device used in place of a conventional float valve device.

[0002]

2. Description of the Related Art As is well known,
A float valve is provided, and when the float valve is pulled up by operating a lever handle or the like, water in the low tank flows out toward the toilet. FIG. 15 is a longitudinal sectional view of the float valve device 1, and FIG. 16 is a side view of a toilet 2 using the float valve device 1.

[0003] A valve seat 5 is mounted on the washing water outlet of the bottom wall 4 of the low tank 3, and a float valve 6 is seated on the valve seat 5. 6a is a guide rod connected to the float valve 6. An overflow pipe 7 is attached to the valve seat 5, and a stopper (float stop) 8 of the float valve 6 is attached in the middle of the overflow pipe 7. The float valve 6 has a hollow inside so that it can float above the water surface.

In the state shown in the figure, the float valve 6 is operated by water pressure.
Is pressed against the valve seat 5 and is in a water stopping (water storing) state. When the float valve 6 is pulled up via the chain 9, the float valve 6 is released from the water pressure and floats until it comes into contact with the stopper 8. In this state, the washing water flows out from the valve seat 5.

When the water level in the low tank 3 lowers below the stopper 8, the float valve 6 eventually separates from the stopper 8 and floats on the water surface and descends with the decreasing water level. When the water level reaches L in FIG. 15, the float valve 6 is forcibly seated on the valve seat 5 by being drawn into the discharged water flow passing through the valve seat 5. Once the float valve 6 is seated, the float valve 6 is pressed against the valve seat 5 by the water pressure from above, so that the water is stopped.

[0006]

In the above-described conventional float valve device, when the outflow of the washing water is started, it is necessary to pull up the float valve over a considerably long distance.

[0007] As a mechanism for manually starting the float valve device, a lever handle and a push button are widely used. In a push button mechanism, the stroke length of a button pressed by a fingertip is increased by a lever (lever) mechanism.

Therefore, when the float valve can be pulled up over a long distance by a short stroke of the push button mechanism, it is necessary to considerably increase the lever ratio of the lever mechanism.

As a result, when the push button is pushed to raise the float valve, the push button must be pushed with a considerably large force.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to provide a float valve device which can lightly operate a starting mechanism such as a push button.

In the conventional float valve device, the position of the valve seat surface of the valve seat on which the float valve is seated is located at a relatively high position away from the bottom wall of the low tank. Therefore, a relatively large amount of residual water (dead water) remains in the raw tank even after the outflow of the washing water.

The present invention has been made in view of such circumstances, and a second object of the present invention is to provide a float valve device capable of reducing residual water in a low tank.

[0013]

According to the first aspect of the present invention, there is provided a float valve device comprising: a fixed cylinder inserted into and fixed to a washing water outlet of a bottom wall of a low tank; a valve seat portion provided on an upper edge of the fixed cylinder; A cylindrical container having a bottom without a cover and disposed above the fixed cylinder; a guide communicating with the inside and outside of the container provided in the cylindrical container;
A water pipe; a cylindrical guide pipe standing upright in the container and into which an overflow pipe is inserted; a float loosely fitted inside the container so as to be movable up and down; the float provided in the float, A valve body that can assume a closed state seated on the valve seat portion and an open state separated from the valve seat portion by the up and down movement of the valve; the valve body is erected upward from the float and can move up and down with the float. A cylindrical overflow pipe fitted inside the guide pipe; and an actuating means for applying an upward tensile force to the valve element in the valve closed state to open the valve.

According to a second aspect of the present invention, there is provided a float valve device according to the first aspect, wherein the passage cross-sectional area is reduced in the fixed cylinder when the flow rate is small, and is increased when the flow rate is large. And a water flow rate responsive member is provided.

According to a third aspect of the present invention, there is provided the float valve device according to the second aspect, wherein the water flow rate responsive member is a water control plate having a size fitted inside the inner surface of the fixed cylinder, and a water transmission plate provided on the water control plate. Holes and
A horizontal support shaft rotatably supporting the water control plate around the horizontal axis in the fixed cylinder, wherein the through-hole is provided on one half of the water control plate with the horizontal axis interposed therebetween. Only, or is provided so that the through-hole area of the one half side is larger than the other half side, the attitude of reducing the passage cross-sectional area, the plate surface of the water control plate is substantially horizontal The attitude of increasing the cross-sectional area of the passage is an attitude in which a plate surface of the water control plate is substantially vertical.

According to a fourth aspect of the present invention, there is provided the float valve device according to the third aspect, wherein the inside of the float has a cylindrical axis extending vertically, and the inside communicates with the inside of the float. A guide cylinder that can move up and down, and a closed position in which the through hole of the water control plate is insulated from the inside of the low tank, and is separated from the water control plate. When the guide tube is moved upward by a predetermined distance so as to be able to take the opened hole posture, the guide tube and the slide tube are engaged. And an engagement piece for lifting the slide cylinder upward.

According to a fifth aspect of the present invention, there is provided a float valve device according to the first aspect, wherein the container allows a flow of water from the inside to the outside of the container at an upper portion thereof, and the flow of water from the outside to the inside of the container. And a one-way valve for preventing the occurrence of the pressure.

[0018]

According to the float valve device of the first aspect of the present invention,
As in the conventional example, a water pressure is applied to the float from above, and when the water is stored, the float is located at the lower limit in the container. The overflow pipe is connected to the valve body via a float, and the overflow pipe is pulled upward by an actuating means. Therefore, the valve body is pulled upward integrally with the overflow pipe, separated from the valve seat, the float valve device is opened, and the washing water in the low tank flows out of the tank.

According to the float valve device of the second aspect, when the flow rate of the water flow rate responsive member is large within a certain period of time immediately after the valve is opened within the fixed cylinder, the water flow rate response member takes a posture of increasing the passage sectional area. Do not disturb. At the time of water stoppage and when the amount of water passage is small, the posture of reducing the passage cross-sectional area is taken to prevent water passage and prolong water passage time.

According to the float valve device of the third aspect, the water flow rate responsive member has a water control plate provided with a through hole on one half side, and a horizontal plate provided between the one half side and the other half side. The support shaft is rotatably supported in the fixed cylinder. The water control plate is urged so that its plate surface is generally in a substantially horizontal posture. Therefore, when water is stopped, the surface of the water control plate is substantially horizontal.

However, when the flow rate is large and the water flow is strong within a certain period of time immediately after the valve is opened, the flow pressure received by one half of the plate surface provided with the through-hole is increased by the other half without the through-hole. Extremely lower than the water flow pressure on the side. Therefore, the water control plate rotates around the horizontal support shaft on one half side provided with the through hole in the upstream direction and on the other half side in the downstream direction, and the plate surface takes a substantially vertical posture.

When the water level in the low tank is lowered, the flow rate is small, and the water pressure is weak, the force for horizontally biasing the water control plate exceeds the force for rotating the water control plate in a substantially vertical posture. ,
The plate surface rotates and assumes a substantially horizontal posture again.

According to the float valve device of the fourth aspect, the slide cylinder is inserted into the guide cylinder provided inside the float. The slide tube is vertically movable within the guide tube by a predetermined distance, and is locked to the guide tube at the lower end of the movement. Further, the slide cylinder is arranged so as to be able to contact the upper surface of the water control plate and to be able to isolate the through hole of the water control plate from the inside of the low tank.

Therefore, when the float is located at the lower limit in the low tank and the guide cylinder is also at the lower limit, the slide cylinder is located at the upper limit relative to the guide cylinder, and the lower end of the slide cylinder contacts the water control plate. In contact with it, it takes a closed position. When the float (guide cylinder) starts to rise in the low tank, the slide cylinder relatively descends in the guide cylinder. However, the slide cylinder remains stationary in the low tank.

As described above, since the slide cylinder is locked to the guide cylinder at the lower end of the movement, when the slide cylinder is relatively lowered to the lower limit of the slide cylinder with respect to the guide cylinder (when the float rises), The slide cylinder is locked by the guide cylinder, and starts rising in the low tank together with the guide cylinder. That is, since the slide cylinder is separated from the water control plate, the through hole provided in the water control plate communicates with the inside of the low tank, and the outflow of the washing water is started.

That is, according to the float valve device of the fourth aspect, the outflow of the washing water is performed with a slight time difference from the rise of the float, and the washing water flows out after the float has risen to some extent. , And a stable outflow operation is performed.

According to the float valve device of the fifth aspect, the container has a one-way valve at an upper part thereof, which allows the flow of water from the inside of the container to the outside, and the flow of water from the outside to the inside. Has been blocked. Therefore, the float can be easily raised while expelling water in the container out of the container, but it is difficult to lower the float.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a float valve device according to the present invention will be described below with reference to FIGS. Figure 1
FIG. 2 is a longitudinal sectional view showing the float valve device according to the embodiment when the low tank is in a full state, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIGS. FIG. FIG. 7 is a plan view of the water control plate, and FIG. 8 is a perspective view of the water control plate.

In this float valve device, as shown in FIG. 1, an outlet 12 is provided on the bottom wall 11 of the low tank.
A cylindrical fixed cylinder 13 is inserted into the outlet 12. On the upper surface of the fixed cylinder 13, a valve seat portion 14 made of a convex ridge
Is provided around. A flange 15 extends in the circumferential direction outside the valve seat portion 14.

An external thread 16 is formed on the outer peripheral surface of the fixed cylinder 13, and a nut (not shown) is tightened into the external thread 16. An outlet 12 provided on the bottom wall 11 of the raw tank between the nut and the flange 15 of the fixed cylinder 13.
Is fixed, the fixed cylinder 13 is fixed to the bottom wall 1.
Fixed to 1.

A cylindrical container 17 having a closed bottom and no bottom is disposed above the fixed cylinder 13. The container 17 is configured such that an upper container 19 without a lid and a bottom is fitted inside a cylindrical lower container 18. The side wall of the lower container 18 is provided with a water introduction hole 20 for introducing water in the low tank into the container 17. In addition, a one-way valve 21 is provided above the upper container 19 of the container 17 to allow the flow of water from the inside of the container 17 to the outside and prevent the flow of water from the outside of the container 17 to the inside. Have been.

The lower end of the lower container 18 of the container 17 is fixed to the outer edge of the flange 15 of the fixed cylinder 13. At the center of the upper surface of the upper container 19 of the container 17, a guide pipe 23 for guiding the overflow pipe 22 is provided upright. The lower end of the guide pipe 23 projects into the upper container 19 and forms a downward convex portion 24.

In the container 17, a float 25 is loosely fitted so as to be vertically movable. The float 25 has a closed bottom shape made of synthetic resin or the like having a circular cross section. The float 25 stores air inside and can float by buoyancy. A skirt portion 26 made of a ridge extends in the circumferential direction on the outer periphery of the side surface of the float 25. The outer diameter of the skirt portion 26 is provided slightly smaller (for example, about 1 to 2 mm) than the inner diameter of the upper container 19 of the container 17.

The overflow pipe 22 is erected vertically upward from the center of the upper surface of the float 25, and is fitted inside the guide pipe 23 as described above.

The center of the upper surface of the float 25 is a concave portion 27, and the overflow pipe 22 is arranged in the concave portion 27. Inner peripheral surface of recess 27 and overflow pipe 2
A gap is provided between the outer surface of the float 2 and the float 2
When 5 rises, as shown in FIGS. 3 and 4, the downward convex portion 24 enters this gap.

The lower end of the overflow pipe 22 is a float 2
5 and a valve body holding cylinder 28 is fixed to the lower end thereof. The lower end surface of the valve body holding cylinder 28 is
5, a flat ring-shaped valve body 29 made of rubber or the like is attached to the lower end surface of the valve body holding cylinder 28.

A guide tube 30 is inserted and fixed inside the valve body holding tube 28. An outward flange is horizontally provided at the lower end of the guide tube 30. The inner peripheral edge of the valve body 29 is sandwiched between the flange and the lower end of the valve body holding cylinder 28.

The lower end of the guide tube 30 is also provided with a flange inward.

A slide cylinder 31 is fitted inside the guide cylinder 30 so as to be slidable in the vertical direction. Slide tube 31
The upper end is provided with a flange outward. This flange can be engaged with an inward flange at the lower end of the guide tube 30.

At a position where the float 25 is rising in the container 17, the outward flange at the upper end of the slide cylinder 31 engages with the inward flange at the lower end of the guide cylinder 30. The slide cylinder 31 is also pulled up with the rise of.

A water control plate 32 is provided above the water passage opening of the fixed cylinder 13. As shown in FIGS. 7 and 8, the water control plate 32 is a disc-shaped flat plate in plan view, and has a through hole 33 formed of a punched hole or a notch on one half side.

A pair of horizontal support shafts 34 project from the one half of the water control plate 32 where the through holes 33 are provided and the other half thereof, coaxially with the diameter of the water control plate 32. The horizontal support shaft 34 is
The water control plate 32 is engaged with a support hole (not shown) provided in the water passage of the fixed cylinder 13, and is rotatable around the horizontal support shaft 34.

A weight 35 is provided on the outer edge of one half of the water control plate 32 where the through-hole 33 is provided, and the water control plate 32 is controlled so that the water control plate 32 maintains a horizontal posture when no external force is applied. The water plate 32 is balanced.

Reference numeral 36 denotes a cord-like body that connects an activation mechanism (not shown) such as a push button and the overflow pipe 22, and is made of, for example, a metal chain or a resin tape.

FIG. 1 shows the float valve device when the low tank is stored to a full state and is in a water stop state. At this time, the float 25 is located at the lower limit in the container 17 due to the water pressure, and the valve body 29 is seated on the valve seat portion 14 and is in a closed state. Further, the slide cylinder 31 is seated on the water control plate 32 which maintains the horizontal posture. The through hole 33 is provided so as to be located inside the slide cylinder.

In the state shown in FIG. 1, the guide cylinder 30 is also located at the lower limit. Further, the one-way valve 21 is closed.

The operation of the thus constructed float valve device of the present embodiment will be described with reference to FIGS.

In FIG. 3, the actuation mechanism such as a push button is operated to pull the cord 36, and the overflow pipe 22 is pulled.
Pull up. The float 25, the valve body holding cylinder 28, the valve body 29, and the guide cylinder 30 integrated with the overflow pipe 22 also rise together with the overflow pipe 22. When the valve element 29 rises even slightly, the valve element 29 separates from the valve seat portion 14, but the through hole 33 of the water control plate 32 provided in the passage of the fixed cylinder 13 is seated on the water control plate 32. Since it is isolated from the inside of the container 17 by the slide cylinder 31, the water in the low tank does not flow out.

Even if the valve body 29 separates, the outflow of the washing water does not start, so that the water pressure for pushing down the valve body 29 and the float 25 does not act on them. When the float 25 rises, the water in the container 17 flows out of the container 17 through the one-way valve 21.
Rises smoothly with little resistance to water.

Therefore, the operating force required for the starting operation of the float valve device in this embodiment is extremely small. Therefore, even if a push button is adopted as the activation mechanism, the push button can be pushed in with a light push.

As the float 25 continues to rise, the inward flange at the lower end of the guide cylinder 30 and the outward flange at the upper end of the slide cylinder 31 will eventually engage, and the slide cylinder 31 will also begin to rise. Then, the slide cylinder 31 separates from the water control plate 32, the water in the container 17 flows toward the water control plate 32, and the outflow of the wash water from the low tank is started.

Immediately after the start of the outflow, since the inside of the low tank is full, the flow of the outflow water is extremely strong. Therefore, as shown in FIG. 4, the water control plate 32 is provided with a through hole 3 having a small water flow resistance.
Take a vertical position with the three sides up. As a result, as shown by arrow C, the water in the low tank vigorously passes through the water guide hole 20 provided in the lower container 18 and the inside of the fixed cylinder 13 and flows out.

When the water level in the low tank decreases due to the outflow, the outflow water level also weakens. When the power of the outflow water becomes weak, the water control plate 32 is balanced so as to take a horizontal posture, so that the water control plate 32 returns to the horizontal posture as shown in FIG. Therefore, the outflow water slowly flows down from the through hole 33 provided in the water control plate 32 into the passage as shown by the arrow D.

The flushing water flow indicated by the arrow D flows into the flushed toilet and fills the trap. The replenishment of trap water in this way prevents odor backflow.

Even if the water level in the low tank becomes lower than the upper surface of the container 17 as shown in FIG. 5, the float 25 does not fall while the water is accumulated between the float 25 and the container 17.

The water staying in the gap between the float 25 and the container 17 and the guide pipe 23 gradually flows out from between the lower end of the float 25 and the container 17, and is instead replaced between the float 25 and the container 17. The air comes into the air. When the amount of the air increases, the float 25 finally falls in the container 17. Then, as shown in FIG. 6, the slide cylinder 31 abuts on the water control plate 32, and the valve element 29 sits on the valve seat portion 14, and closes and stops the water.

Next, a second embodiment of the float valve device according to the present invention will be described with reference to FIGS. FIG. 9 is a longitudinal sectional view showing a float valve device according to a second embodiment when the low tank is full, FIG. 10 is an enlarged view of a main part of FIG. 9, and FIG. FIG. 12 is a perspective view of a water control plate, and FIG. 12 is a perspective view of another embodiment of the water control plate of this embodiment.

In FIG. 9, the vertical side of the slide cylinder 40 has a larger diameter than the washing water passage of the fixed cylinder 13, and the slide cylinder 40 is seated on the passage opening of the fixed cylinder 13. I have. Therefore, the passage between the fixed cylinder 13 and the inside of the container 17 is isolated by the seat at the lower edge of the slide cylinder 40.

In the second embodiment, since the slide cylinder 40 has a larger diameter than the slide cylinder 31 of the first embodiment, the guide cylinder 41 which engages with the slide cylinder 40, the guide cylinder 41 The valve body holding cylinder 42 in which the cylinder 41 is fitted and the valve body 43 are also increased in diameter. However,
The configuration and operation of each of the above components are the same as in the first embodiment.

In the second embodiment, the lower edge of the slide cylinder 40 does not sit on the water control plate 44 and the passage between the fixed cylinder 13 and the inside of the container 17 is not isolated as described above. It is. Therefore, the water control plate 44 does not need to take a disk shape like the water control plate 32 of the first embodiment shown in FIGS. As shown in FIGS. 11 and 12, the water control plate 44 may be provided with a cutout portion (through hole) 45 for supplying makeup water, a horizontal support shaft 46, and a weight 47.

The components other than those described above and the configuration of the components are the same as those in the first embodiment.
Components having the same function are denoted by the same reference numerals, and description thereof is omitted. Also, the operation of the second embodiment having such a configuration is the same as that of the first embodiment, and therefore the description is omitted.

A third embodiment of the float valve device of the present invention will be described with reference to FIGS. FIG. 13 is an enlarged vertical sectional view of a main part of the float valve device according to the third embodiment when the low tank is full, and FIG. 14 is an enlarged vertical sectional view of the main part of the float valve device when the makeup water flows out. FIG.

In FIG. 13, a cup 51 having a closed bottom and a bottom is provided on the upper portion of the container 17. The cup 51
A small hole 52 is formed in the bottom surface of the container 17, and the small hole 52 passes through the upper surface of the container 17 as it is. That is, the small hole 52 communicates the inside of the container 17 with the outside.

When the washing water flows out of the float valve device, the water level in the low tank drops as shown in FIG. However, the float 25 does not fall while water is accumulated between the float 25 and the container 17.

The water staying in the gap between the float 25 and the container 17 and the guide pipe 23 and the water staying in the cup 51 gradually flow out from between the lower end of the float 25 and the container 17. I do. The air enters the gap between the float 25 and the container 17 from the small hole 52 at the bottom of the cup 51, and the float 25 falls inside the container 17. And
The valve body 29 is seated on the valve seat portion 14 to close the valve and stop water.

In the above first, second and third embodiments,
As a means for urging the water control plate to a horizontal position, a weight balance around the horizontal support shaft of the water control plate was adopted, and a weight was applied to the half-side edge portion provided with a through hole or notch, A mainspring or the like may be provided on the horizontal support shaft to urge it in the horizontal direction.

Further, in the float valve device of this embodiment, the residual water in the low tank can be reduced by setting the valve seat portion 14 of the fixed cylinder 13 as low as possible near the bottom wall 11.

In each of the above embodiments, the cord 36 is a metal chain, but it is obvious that another cord (for example, a resin tape or string) may be used.

[0069]

As described above, in the float valve device according to the present invention, the float and the valve element are provided at the lower part of the overflow pipe, and the overflow pipe is pulled up by operating means to open and close the valve element. Was done,
The configuration is simple. Further, since the valve seat portion can be installed near the bottom wall of the raw tank, residual water in the raw tank can be reduced.

In the float valve device according to the second aspect, the water flow rate responsive member is provided in the passage of the fixed cylinder, and the cross sectional area of the passage can be increased or decreased depending on the amount of water flow.

According to the float valve device of the third aspect, the water control plate is provided in the passage of the fixed cylinder as the water flow rate response member. The position of the water control plate changes depending on the amount of water flow, thereby increasing or decreasing the cross-sectional area of the washing water passage. Therefore, without compromising the water flow of the washing water flow, the power of the makeup water flow is weakened,
The makeup water can be allowed to flow for a long time.

According to the float valve device of the fourth aspect, the slide cylinder provided at the lower portion of the float follows the rise of the float with a slight time difference, and when the float rises a predetermined distance, flush water flows out. It is configured as follows.
Therefore, since the force and stroke involved in the starting operation of raising the float and separating the valve element can be small, a push button or the like can be used as the starting device for performing the starting operation.

In the float valve device according to the fifth aspect, since the container has a one-way valve, and it is difficult to lower the float valve in the container, the outflow time of the makeup water can be lengthened. Has become.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a float valve device according to a first embodiment of the present invention when it is full of water.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a longitudinal sectional view of the float valve device according to the first embodiment at the time of startup.

FIG. 4 is a vertical cross-sectional view of the float valve device according to the first embodiment at the time of outflow of washing water.

FIG. 5 is a vertical sectional view of the float valve device according to the first embodiment when make-up water flows out.

FIG. 6 is a vertical cross-sectional view of the float valve device according to the first embodiment when the valve is closed.

FIG. 7 is a plan view of a water control plate of the float valve device according to the first embodiment.

FIG. 8 is a perspective view of a water control plate of the float valve device according to the first embodiment.

FIG. 9 is a vertical sectional view of a float valve device according to a second embodiment of the present invention when it is full.

FIG. 10 is an enlarged view of a main part of FIG. 9;

FIG. 11 is a perspective view of a water control plate of the float valve device according to the second embodiment.

FIG. 12 is a perspective view of a water control plate of the float valve device according to the second embodiment.

FIG. 13 is an enlarged longitudinal sectional view of a main part of a float valve device according to a third embodiment of the present invention when the float valve is full.

FIG. 14 is an enlarged vertical sectional view of a main part of the float valve device according to the third embodiment when makeup water flows out.

FIG. 15 is a longitudinal sectional view showing a conventional example.

FIG. 16 is a side view of the toilet bowl.

[Description of Signs] 7,22 Overflow pipe 13 Fixed cylinder 17 Container 21 One-way valve 25 Float 29,43 Valve element 30,41 Guide cylinder 31,40 Slide cylinder 32,44 Water control plate

Claims (5)

(57) [Scope of request for utility model registration] 1. A fixed cylinder inserted into and fixed to a washing water outlet of a bottom wall of a low tank; a valve seat portion provided on an upper end edge of the fixed cylinder; Cylindrical container; water guide provided inside the cylindrical container and communicating with the inside and outside of the container
Hole: a cylindrical guide pipe standing upright in the container and into which an overflow pipe is inserted; a float loosely fitted inside the container so as to be vertically movable; provided on the float; A valve body that can assume a closed state seated on the valve seat portion by an up-down movement and an open state separated from the valve seat portion; a valve body that is erected upward from the float so as to be able to move up and down with the float. A float valve device comprising: a cylindrical overflow pipe fitted inside the guide pipe; and operating means for applying an upward tensile force to the valve element in the closed state to open the valve state. 2. A water flow response according to claim 1, wherein the fixed cylinder has a posture in which the cross-sectional area of the passage is reduced when the amount of water flow is small, and a posture in which the cross-sectional area of the passage is increased when the amount of water flow is large. A float valve device comprising a member. 3. The water flow rate responsive member according to claim 2, wherein the water flow rate response member is a water control plate sized to fit inside an inner surface of a fixed cylinder, a through hole provided in the water control plate, and the water control plate. And a horizontal support shaft rotatably supporting the horizontal axis around the horizontal axis in the fixed cylinder, wherein the through hole is provided only on one half of the water control plate with the horizontal axis interposed therebetween. , Or is provided so that the through-hole area of the one half side is larger than the other half side, the attitude of reducing the passage cross-sectional area is an attitude in which the plate surface of the water control plate is substantially horizontal, The float valve device according to claim 1, wherein the posture of increasing the passage cross-sectional area is a posture in which a plate surface of the water control plate is substantially vertical. 4. The guide cylinder according to claim 3, further comprising: a vertical axis extending in a cylinder axis direction inside the float, the interior communicating with the interior of the float, and being vertically movable integrally with the float. And a closed position in which the plate surface is in contact with the water control plate having a substantially horizontal surface and the through hole of the water control plate is isolated from the inside of the low tank, and an opening position separated from the water control plate is taken. As described above, a slide cylinder inserted vertically movably into the guide cylinder, and when the guide cylinder moves upward by a predetermined distance, the guide cylinder and the slide cylinder are engaged, and the slide cylinder is moved upward. A float valve device comprising: an engagement piece for lifting. 5. The container according to claim 1, wherein the container allows a flow of water from inside to outside of the container at an upper portion thereof.
A float valve device comprising a one-way valve for preventing a flow of water from the outside to the inside of the container.