JPH10196837A - Water supply control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of large noises during water flowing-in by controlling the water pressure of a pressure chamber for opening/closing the filling valve main body of a filling valve so as to open/close a water passage by a float valve body of a float valve for detecting the water level in a water storage tank. SOLUTION: In a water storage tank 1 for storing tray cleaning water or the like, water is discharged from the water storage tank 1 by using a tray and, when a water level in the water storage tank 1 is lowered, a floating ball 49 is lowered, a swing bar 50 is rotated counterclockwise and thus a float valve 41 is opened and a pressure water discharge route 34a is opened. Then, water in a pressure chamber 31 provided in a filling valve 5 is passed through the pressure water discharge route 34a and discharged to the outside of the float valve 41. Thus, when a water pressure in the pressure chamber 31 is lowered, a diaphragm 21 is pressed by the water pressure of a flow-in port part 9 communicated with a water supply passage 10, a filling valve main body 22 is separated from a filling port valve seat 8 and the water of the water supply passage 10 is passed through the flow-in port part 9 to flow from a filling port part 7 into the water storage tank 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply control device for controlling water to be supplied to a water storage tank for storing flush water for toilets.

[0002]

2. Description of the Related Art Conventionally, a floating valve has been installed in a water storage tank for storing toilet flush water.
A water supply control device for controlling water flowing into a water storage tank is known.

[0003] The water supply control device opens the water discharge valve of the water tank, discharges the water in the water tank to the toilet, and when the water level in the water tank falls and the floating ball falls, the water supply control device is controlled by the floating ball. The floating valve is opened so that the water passing through the floating valve flows into the water storage tank.

After a predetermined amount of water in the water tank is released, the water discharge valve of the water tank is closed, and the water level in the water tank is reduced to a predetermined water level by the water flowing through the floating ball valve. , The floating ball valve is closed by the floating ball that floats.

[0005]

The above-mentioned conventional water supply control device in which a floating ball type valve is installed in a water storage tank for storing flush water for toilet flushing flows into the water storage tank with a simple device. It is convenient to control the washing water to be performed accurately.

[0006] However, in the floating ball type valve, when the valve is opened and water flows into the water storage tank, water flows from one side of the valve body through the periphery of the valve body to reach the other side of the valve body. I do. Therefore, the valve body vibrates greatly, generating loud noise.

As a means for reducing the noise of the floating ball valve, it is conceivable to reduce the flow rate of water passing through the floating ball valve per unit time when the floating ball valve is opened. However, if the flow rate of water passing through the valve in a unit time is reduced, it takes a long time to fill the water tank after discharging the water in the water tank, and the water in the water tank is continuously used. This is a hindrance when you want to.

The present invention has been made in view of the above-mentioned circumstances, and uses a floating ball valve capable of accurately controlling the opening and closing of a valve with a simple device, and furthermore, the water flowing into a water storage tank. It is an object to provide a water supply control device in which a flow rate per unit time does not decrease.

[0009]

A filling port 7 for filling water is provided in the water storage tank 1, a filling port valve seat 8 is provided in the filling port 7, and a filling valve body 22 capable of opening and closing the filling port valve seat 8 is provided. The filling valve main body 22 is provided on a flexible diaphragm 21 which is provided so as to cover an inlet portion 9 formed outside the filling port valve seat 8 and has a peripheral portion fixed thereto. 9 is connected to a water supply passage 10, and the water supply passage 10 communicates with a pressurizing chamber 31 through a small-diameter hole 13. The pressurizing chamber 31 is provided on one side of the diaphragm 21 and on a side without the filling port valve seat 8. The filling valve body 22 provided on the diaphragm 21 is provided with the filling valve 5 formed so as to be pressed toward the filling port valve seat 8 by the water pressure of the pressurizing chamber 31, and the pressurized water is discharged into the pressurizing chamber 31. Path 34, and the pressurized water discharge path 34 has a flow rate per unit time Formed to have a larger flow than the amount, the opening and closing of pressurized water discharge passage 34, 浮玉 the water tank 1 49
The water supply control device was formed so as to be performed by lowering and raising the water supply.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 are diagrams for explaining one embodiment of the present invention.

The water supply control device of this embodiment is formed by providing a filling valve 5 and a floating ball type valve 41 in a water storage tank 1 shown as a part in FIG. As shown in FIG. 2, the filling valve 5 is formed by forming upper and lower portions of a central portion of a base portion 6 into a cylindrical shape,
A filling port 7 is provided, and a filling port valve seat 8 is provided at an annular portion on the upper end surface of the filling port 7.

Further, a portion near the outer periphery of the upper surface of the base portion 6 of the filling valve 5 is formed on an annular flat surface 12, and is formed on a surface on which a diaphragm 21 described later is placed. The upper portion of the base 6 is formed in a tubular portion 14 projecting upward from the outer periphery of the annular flat surface 12.

An inlet 9 is provided around the entire periphery of the filling port 7 and the filling port valve seat 8, and a water supply passage 10 is connected to the inlet 9 so that a water supply passage 10 is provided. 10 is provided with a water supply pipe 11 connected thereto.

A filling valve body 22 capable of opening and closing the filling port valve seat 8 is provided.
A disk-shaped member 23 is attached to the center of the upper surface of a diaphragm 21 made of a synthetic resin having flexibility.

That is, the filling valve main body 22 is formed by inserting a flange-shaped outer peripheral portion of a metal disk-shaped member 23 into an annular groove provided at the center of the upper surface of the diaphragm 21 and attaching the same. A guide rod 24 is provided at the center of the disc-shaped member 23 so as to protrude upward.
The guide rod 24 has a vertical water passage (not shown).

The diaphragm 21 covers the filling port valve seat 8 and the inflow port 9 formed outside the filling port valve seat 8 with a central portion of the diaphragm 21.
Is formed on an annular flat surface 12 formed on a base 6 of the filling valve 5.
Further, a metal upper lid 30 is placed on the diaphragm 21, and an upper lid flange 35 of the upper lid 30 is fixed to the cylindrical portion 14 of the base 6 by bolts.

The inflow port 9 is connected at one side to a water supply channel 10, which is provided in the base 6 and the upper cover 30 and is provided with a small-diameter hole provided through the periphery of the diaphragm 21. At 13, it communicates with the pressurizing chamber 31.

The pressurizing chamber 31 includes the diaphragm 21
The filling valve main body 22 provided on the one side, which is the upper surface of the diaphragm, and on the side where the filling port valve seat 8 is not provided. It is formed on a filling valve 5 formed so as to be pressed toward.

The pressurizing chamber 31 provided in the filling valve 5
Is connected to a drain hose 34a for discharging pressurized water. A guide hole 32 is provided in the center of the lower surface of the upper lid 30 in a vertical direction, and a guide rod 24 protruding above the disc-shaped member 23 is vertically slidable into the guide hole 32. Has been inserted.

Further, the filling valve body 22 is pressed toward the filling port valve seat 8 by a spring 33 inserted between the filling valve body 22 and the upper lid 30. The guide rod 24, the guide hole 32, and the spring 33
May not be provided.

The floating ball valve 41 has a vertically extending flange-like portion 59 formed on one side of the floating ball type valve case 42, and a bolt insertion hole 60 provided in the flange-like portion 59.
A bolt (not shown) inserted into the base 6 of the filling valve 5
The floating ball type valve 41 is formed so as to be fixed to the filling valve 5 by being screwed into the screw hole 15 formed in the filling valve 5.

The floating ball valve 41 accommodates a floating ball valve body 44 in a cylindrical portion provided below a floating ball valve case 42 so as to be vertically movable. And the floating ball valve case 42
One end of a first swinging rod 51 is pivotally attached to the lower part of one side of the first swinging rod 51, and one end of a second swinging rod 52 is swingably attached to the other end of the first swinging rod 51. The other end of the second swinging rod 52 is swingably attached to a position close to one end of the swinging rod 50.

One end of the swinging rod 50 is pivotally mounted on the other side of the floating ball type valve case 42, and the tip of the swinging rod 50 is made of a synthetic resin hollow hollow. The ball 49 is attached.

The pressurized water discharge passage 34 provided in the floating ball type valve seat 43 in contact with the floating ball type valve body 44 is connected to the pressurizing chamber 31 via a drain hose 34a. Further, when the pressure difference between each of the inflow side and each of the outflow sides is substantially the same as the pressure difference between the pressurized water discharge path 34 and the small diameter hole 13, the flow rate per unit time of the pressurized water discharge path 34 is smaller than that of the small diameter hole 13. The diameter of the pressurized water discharge passage 34 is formed to be larger than the diameter of the small-diameter hole 13 so that the flow rate becomes larger than the flow rate per unit time.

The water supply control device according to the embodiment described above, when the water is filled to a predetermined position in the water storage tank 1, the floating ball 49
Float as shown in FIG. Then, the swing bar 50 to which the floating ball 49 is attached rotates clockwise in FIGS. 1 and 3, and pulls the second swing bar 52 upward.

The second swinging rod 52 is connected to the first swinging rod 5
1 is rotated clockwise. Then, the first swinging rod 5
Reference numeral 1 denotes a projection 53 which pushes up a floating ball type valve body 44 upward, and the floating ball type valve body 44 is pressed against a floating ball type valve seat 43 to close the pressurized water discharge passage 34.

Then, the tap water of the water supply passage 10 flowing into the pressurizing chamber 31 through the small-diameter hole 13 is supplied to the pressurizing chamber 31.
The filling valve body 22 is pressed against the filling port valve seat 8 in cooperation with the spring 33 to close the filling port 7, and the water from the water supply pipe 11 into the water storage tank 1 is increased. Inflow stops.

Then, using the toilet, the water discharge valve (not shown) is opened to discharge the water in the water storage tank 1, and the water storage tank 1 is opened.
When the water level in the inside falls, the floating ball 49 descends, the swing bar 50 rotates counterclockwise, and the first swing bar 51 rotates counterclockwise. Then, the floating ball valve 44 descends, the floating ball valve 41 opens, and the pressurized water drainage passage 34 opens.

Then, the water in the pressurizing chamber 31 passes through the pressurized water discharge passage 34, from one side of the floating ball type valve body 44, around the floating ball type valve body 44, and to the other side of the floating ball type valve body 44. And is discharged out of the floating ball valve 41. As described above, the water discharged from the floating ball type valve 41 is supplied from one side of the floating ball type valve body 44 to
It passes through the periphery of the floating ball valve 44, reaches the other side of the floating ball valve 44, and is discharged to the outside of the floating ball valve 41.

However, the water passing through the floating ball valve 41 does not allow a large amount of water to pass through, unlike a valve for supplying water to a water storage tank. That is, the pressurized water discharge passage 34 of this embodiment is for reducing the water pressure in the pressurized chamber 31 and may be any liquid that can discharge a slightly larger amount of water than the amount of water flowing into the pressurized chamber 31 from the small-diameter hole 13. Things.

Therefore, the floating ball type valve 4 of this embodiment
1 does not generate noise as in the conventional floating ball type valve for supplying water to the water storage tank. As described above, when the water pressure in the pressurizing chamber 31 decreases, the diaphragm 2
1 is pushed by the water pressure of the inlet port 9 communicating with the water supply passage 10, the filling valve main body 22 is separated from the filling port valve seat 8, and the water of the water supply passage 10 passes through the inlet port 9 and fills the filling opening part. From 7 flows into the water storage tank 1.

In this case, the water supply through the filling valve 5 is
Along the lower surface of the diaphragm 21 and the filling valve body 22
Along the lower surface of the filling valve main body 22, and flows into the filling port 7.

Therefore, even if a large amount of water flows, the filling valve 5 does not generate loud noise unlike a valve in which water passes from one side of the valve body to the periphery of the valve body and reaches the other side of the valve body. .

[0034]

According to the present invention, a floating ball valve 41 for detecting the water level of the water storage tank 1 and opening and closing the valve with a simple structure is used. The body 44 does not directly open and close the water path for supplying water to the water storage tank 1, but forms a water path for supplying water to the water storage tank 1 so as to open and close with the filling valve body 22 of another filling valve 5. The water pressure of the pressurizing chamber 31 that opens and closes the filling valve body 22 is adjusted by the floating ball element 4 of the floating ball valve 41.
4 to be operated by opening and closing.

Therefore, according to the present invention, the filling valve 5 which opens and closes a water channel for supplying water to the water storage tank 1 is provided so that the supply water passing through the filling valve 5 extends along the lower surface of the diaphragm 21 and the lower surface of the filling valve body 22. Along to the lower surface of the filling valve body 22,
It can be formed so that it can flow into the filling port 7.

Therefore, according to the present invention, the opening and closing of the water channel for supplying water to the water storage tank 1 while using the floating ball type valve 41 which detects the water level with a simple configuration and opens and closes the valve properly is large. This is a water supply control device using the filling valve 5 with low noise even when the water flows at a flow rate.

[Brief description of the drawings]

FIG. 1 is a schematic diagram for explaining an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a filling valve portion for explaining one embodiment of the present invention.

FIG. 3 is a sectional view of a floating ball type valve portion for explaining an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water storage tank 5 Filling valve 6 Base 7 Filling port 8 Filling port valve seat 9 Inflow port 10 Water supply channel 11 Water supply pipe 12 Annular plane 13 Small diameter hole 14 Cylindrical part 15 Screw hole 21 Diaphragm 22 Filling valve main body 23 Disc-shaped member 24 Guide rod 30 Upper lid 31 Pressurizing chamber 32 Guide hole 33 Spring 34 Pressurized water discharge passage 34a Drain hose 35 Upper lid flange 41 Floating ball valve 42 Floating ball valve case 43 Floating ball valve seat 44 Floating ball valve element 49 Floating ball Description of Reference Numerals 50 rocking rod 51 first rocking rod 52 second rocking rod 53 projecting part 59 flange-shaped part 60 bolt insertion hole

Claims (1)

[Claims] 1. A water supply tank 1 is provided with a filling port 7 for filling water.
A filling port valve seat 8 is provided in the filling port 7, and a filling valve body 22 capable of opening and closing the filling port valve seat 8 is provided.
Is provided on a flexible diaphragm 21 which is provided so as to cover the inflow port 9 formed outside the filling port valve seat 8 and has a fixed peripheral edge. The inflow port 9 is connected to the water supply passage 10. The water supply passage 10 communicates with the pressurizing chamber 31 through the small-diameter hole 13, and the pressurizing chamber 31 is provided on one side of the diaphragm 21 and on the side without the filling port valve seat 8. The valve main body 22 is provided with a filling valve 5 formed so as to be pressed toward the filling port valve seat 8 by the water pressure of the pressurizing chamber 31, and a pressurized water discharge path 34 is connected to the pressurizing chamber 31 to discharge the pressurized water. The passage 34 is formed such that the flow rate per unit time is larger than the flow rate per unit time of the small-diameter hole 13.
The water supply control device is configured to open and close by opening and closing the floating ball 49 in the water storage tank 1.