JP3514115B2 - Tank with flow valve - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a tank for supplying flush water to a toilet bowl, and in particular, it is provided with a flow valve for continuously supplying water little by little to a toilet bowl to prevent freezing of trap water and the like. Regarding the tank. Specifically, the present invention is
The present invention relates to a type of tank in which an inner tank is provided and a floating body such as a ball tap floating ball is arranged in the inner tank.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open No. 6-185100 discloses a low tank in which an inner tank is provided in which a floating body such as a ball tap floating ball is arranged.

This inner tank is separated from the water storage chamber in the tank by a partition wall. The inside of the inner tank and the water storage chamber communicate with each other through a small hole provided in the partition wall. A check valve that allows only the flow from the inner tank to the water storage chamber may be provided in the small hole portion.

In this low tank with an inner tank, when the float valve is opened, most of the water in the water storage chamber flows out into the toilet bowl, and then the water in the inner tank flows out through the small holes into the water storage chamber. Then the ball tap opens. In other words, the ball tap will not open until most of the water in the reservoir has flowed out to the toilet bowl. Since the float valve is closed when most of the water in the water storage chamber flows out, the makeup water newly injected from the ball tap thereafter is collected in the tank and does not flow out to the toilet bowl. For this reason, the water consumption is saved compared to the conventional low tank in which even the initial makeup water flows out into the toilet bowl.

In a toilet bowl in cold regions, a flow valve is provided in a tank such as a low tank, and water is supplied little by little to the toilet bowl to prevent trap water from freezing.

FIG. 6 is a sectional perspective view of a conventional low tank equipped with this flow valve.

A body portion 16 of a float valve device 14 is fixed to an opening 12 on the bottom surface of the raw tank 10 by a nut 18. The float valve device 14 is used for the low tank 10
The valve body 20 is pulled up via a chain or the like by a lever handle (not shown) at the upper part of the. The body portion 16 is provided with a seat portion on which the valve body 20 is seated on its upper surface portion. From this body 16 to the overflow pipe 2
2 are erected. A hose 24 connected to the main body 16 is connected to a flow valve 26 attached to the side wall of the raw tank 10. By turning the handle 28 of the flow valve 26 to open the valve, the water in the low tank 10 flows into the main body 16 from the inflow port 30 of the flow valve 26 through the hose 24 and continuously toward the toilet bowl. A small amount (for example, 100 liter / Hr) is supplied.

The flow valve 26 has a substantially cylindrical casing, a spindle (not shown) inserted in the casing, and the handle 28 mounted on the spindle.
And so on. The flow valve 26 is inserted into an opening penetrating the side surface of the raw tank 10 and is fixed to the raw tank 10 by tightening a nut through a packing.

A female screw is provided on the inner peripheral surface of the casing,
A male screw on the outer peripheral surface of the spindle meshes with the female screw, and by turning the handle 28, the spindle advances and retreats in the axial direction of the spindle, and communication and disconnection between the inflow port 30 and the hose 24 are performed. .

[0010]

[Problems to be Solved by the Invention] When a flow valve is provided in a tank with an inner tank, and a check valve is provided in the small hole, when the check valve malfunctions, If foreign matter is clogged in the small holes, the water level in the tank may remain high due to the outflow of the flowing water, but the water level in the inner tank may remain high, and the ball tap may not open. There is.

It is a first object of the present invention to provide a tank with a fluid valve which can always supply a sufficient amount of fluid water even in a tank with an inner tank having a check valve at the outflow portion. .

The conventional flow valve 26 shown in FIG. 6 receives the water in the low tank 10 from the inflow port 30 and receives the water from the hose 2.
Since it flows to No. 4, it is naturally located below the full water level. Therefore, since the low tank opening for mounting the flow valve 26 is always located under the water surface, water may leak if the packing deteriorates or the nut is loosened.

A second object of the present invention is to provide a tank with a flow valve which can reliably prevent water leakage from such a low tank.

The conventional flow valve described above has an operating characteristic that the flow rate gradually increases when the handle 28 is rotated in the opening direction. Therefore, the user tries to save the flow water by moving the handle 28 midway. It may stop at an unsealed position. In such a case, the amount of flowing water becomes small, for example, about 30 L / Hr, and it may be impossible to prevent freezing of the toilet bowl.

According to the present invention, there is provided a tank with a flow valve capable of surely preventing freezing of a toilet without performing a half-opened state of the flow valve by performing only two operations of full opening and full closing. The third purpose is to provide.

[0016]

A tank with a flow valve according to a first aspect of the invention is provided with a tank having a float valve at the bottom, a ball tap for pouring water into the tank, and a tank provided in the tank. In a tank having an inner tank in which the floating body of the ball tap is arranged, a flow valve is provided for supplying water to the secondary side of the float valve by taking water from the inner tank. is there.

In such a tank with a flow valve, since the fluid water is taken from the inner tank, the ball tap opens when the water level in the inner tank lowers due to the intake of the fluid water, and the water is taken into the inner tank. Water is replenished. As a result, a sufficient amount of flowing water is always supplied to the toilet bowl or the like.

A tank with a flow valve according to a second aspect of the present invention is characterized in that the flow valve is arranged only inside the tank, and a remote control member for remotely operating the flow valve is provided. .

In such a tank with a flow valve, the flow valve is arranged only in the tank and there is no opening for mounting the flow valve in the tank wall, so that water leakage from the opening cannot occur. Become.

According to another aspect of the present invention, there is provided a tank with a flow valve.
In, the flow valve, a seat portion provided in the water channel,
The remote control includes a valve body that is seated on the seat portion and a spring that biases the valve body in the seating direction, and the remote operation is a cable that pushes the valve body away from the seat portion, and a cable that advances the cable. And a cable stopping means for stopping at only two positions, the position and the retracted position.

In such a tank with a flow valve, it is possible to perform only two operations, a fully closed state in which the valve body is seated on the seat portion and a fully open state in which the valve body is separated from the seat portion by a predetermined distance. A half open state is prevented. Therefore, when the flow valve is opened to prevent freezing, the flow valve is always fully opened, and freezing is surely prevented.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a vertical sectional view of a low tank with a flow valve according to an embodiment, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view of a flow valve used in this embodiment, FIG. 4 is a side view of the remote handle used in this embodiment, and FIG. 5 is a sectional view of the remote handle.

As shown in FIG. 1, an inner tank 34 made of synthetic resin is arranged in an outer tank 32 made of ceramics.
An inner tank 36 is installed in the inner tank 34. An outflow pipe 38 extends from the bottom of the inner tank 36 to the lower portion of the inner tank 34.

The outflow pipe 38 is provided with a check valve 40 which allows only the flow in the outflow direction from the inner tank 36.

Outer tank 32 and inner tank 3
A float valve device 42 is installed at the bottom of No. 4, and an overflow pipe 44 is raised from the float valve device 42. A float valve 48 is seated on the seat portion 46 of the float valve device 42. A chain 50 is connected to the float valve 48, and by rotating a cleaning handle (not shown), the float valve 48 is pulled up through the chain 50, and the water in the inner tank 34 flows out to the toilet bowl through the outflow tube 54. Is configured to.

A ball tap 56 is attached to the upper portion of the outer tank 32. The floating ball (floating body) 58 of the ball tap 56 is arranged in the inner tank 36. When the floating ball 58 descends, the ball tap 56 is opened, and when the floating ball 58 rises, the ball tap 56 is closed. The outlet 60 of the ball tap 56 is arranged so as to inject water into the inner tank 34 outside the inner tank 36.

A flow valve 60 is connected via a hose 62 to the downstream side (secondary side) of the seat portion 46 of the float valve device 42. The flow valve 60 is provided at the bottom of the inner tank 36.

A remote handle 70 for remotely operating the flow valve 60 is installed above the outer tank 32 , and the remote handle 70 and the flow valve 60 are connected by a push-pull cable 72.

The structure of the flow valve 60 will be described with reference to FIG.

The flow valve 60 includes a valve body 80,
The water channel 82 provided in the valve body 80 and the water channel 8
2, a seat portion 84 provided on the second seat 2, a valve body 86 seated on the seat portion 84, and a return spring 88 for biasing the valve body 86 in the seating direction. The valve body 86 is seated on the seat portion 84 from the downstream side of the water channel 82.

The valve body 80 is an upper body 80.
The lower body 80b is provided with an elastic piece 80c.
When the valve body 80 is inserted into the mounting opening 90 at the bottom of the inner tank 36, the elastic piece 80c elastically deforms toward the center side, and when the elastic piece 80c passes through the mounting hole 90, the elastic body 80c expands to open. The flow valve 60 is attached to the opening 90 so as not to slip out.

The push-pull cable 72 comprises an outer cable 92 and an inner cable 94 inserted in the outer cable 92, and a knocker 96 is provided at the tip of the inner cable 94. When the inner cable 94 moves forward, the knocker 96 causes the valve body 8 to move.
6 is pushed down and separated from the seat portion 84. Reference numeral 98
Indicates a cable stopper that prevents the inner cable 94 from coming off.

One end of the push-pull cable 72 is connected to the upper end of the valve body 80 by a connecting fitting 100.

Next, the structure of the remote handle 70 will be described with reference to FIG.

The remote handle 70 has a substantially cylindrical column 1 in which the inner cable 94 is inserted.
02, a shaft 104 arranged in the column 102 and connected to the end of the inner cable 94, a stopper 106 formed at the end of the shaft 104, and the stopper 106 attached to the right side of FIG. The biasing return spring 108 and the convex portion 1 protruding from a part of the stopper 106
10 and the column 10 so that the protrusion 110 can pass through.
2, a groove 112 extending in the longitudinal direction, and the shaft 1
And a grip 116 to which 04 is fixed. A fixing column 120 having a flange 118 is screwed onto the outer periphery of the column 102, and the lock handle 122 is tightened into the column 120 to fix the remote handle 70 to the upper portion of the outer tank 32. .

An outer cable 92 is connected to the tip of the column 102 by a connecting fitting 124.

When the shaft 104 is in the state shown in the drawing, the convex portion 110 matches the groove 112 and can pass through the groove 112. When the shaft 104 is rotated by 90 ° around the axis of the shaft 104 from the state shown in the figure, the convex portion 110 does not match the groove 112 and cannot enter the groove 112, as shown in FIG. The grip is pushed in.

The operation of the low tank having the flow valve 60 thus constructed will be described below.

As described above, the float valve 48 is pulled up by turning the cleaning handle, and the inner tank 3
The water in 4 flows out toward the toilet bowl through the outflow tube 54. Although the water level in the inner tank 36 also decreases with the outflow of water in the inner tank 34, the water in the inner tank 36 flows out into the inner tank 34 via the small-diameter outflow pipe 38. Even if most of the water in the tank 34 flows out, a considerable amount of water remains in the inner tank 36.
Is capped.

When most of the water in the inner tank 34 flows out, the float valve 48 is seated on the seat portion 46, and the float valve device is closed, when the water level in the inner tank 36 drops, the ball tap 56 floats. Ball 58 descends, ball tap 58
Is opened, and water is replenished in the inner tank 34. Since the check valve 40 is provided in the outflow pipe 38, only the water level in the inner tank 34 rises due to this water supply.
The water level in the inner tank 34 is the upper edge 36 of the inner tank 36.
When it reaches a, the water in the inner tank 34 overflows the upper edge 36a and flows into the inner tank 36, and the water level in the inner tank 36 rapidly rises. When the water level in the inner tank 36 rises, the floating ball 58 rises and the ball tap 56 closes.

In order to prevent freezing of trap water in the toilet by continuously pouring water (fluid water) little by little from the low tank into the toilet, as shown in FIG. 4B, the grip 116 of the remote handle 70 is pushed. State. Then, the knocker 96 pushes down the valve body 86 via the inner cable 94, and the seat portion 84 and the valve body 86 are separated from each other. As a result, the water in the inner tub 36 flows out to the hose 62 via the water passage 82, and the water continuously flows out to the toilet via the float valve device 42.

When [0042] the tank water from the inside 36 is the water level in the inner tank 36 flows out is lowered, ball tap 5 6 is opened, flow and overflow from the inner tank 34 into the inner tank 36 water,
Water is supplied to the inner tank 36. In this freezing prevention operation state, the valve body 86 of the flow valve 60 is always separated from the seat portion 84 by a predetermined distance (that is, by the stroke of the grip 116), and it is necessary to always prevent freezing of the toilet trap water. A sufficient amount of water will be supplied to the toilet bowl.

When stopping the antifreezing operation, the grip 116 is turned and the grip 116 is pulled out as shown in FIG. 4 (a). When the protrusion 110 is aligned with the groove 112, the grip 116 moves to the right in FIG. 4A by the urging force of the return spring 108, the inner cable 94 pulls up the knocker 96, and the valve body 86 moves to the seat portion. Sit at 84.

As described above, in the raw tank according to the present embodiment, the flowing water is taken from the flow valve 60 provided at the bottom of the inner tank 36, and the floating balls 58 of the ball tap 56 are attached to the inner tank 36. Since it is arranged, the water is always supplied from the ball tap to the specified height in the inner tank 36, and a sufficient amount of flowing water can be surely supplied.

Further, since the flow valve 60 is arranged only in the inner tank 36 , there is no flow valve mounting opening in the inner tank 34 , and there is no possibility of water leakage from this opening.

Further, in this embodiment, as described above, the valve body 86 of the flow valve 60 is in a fully closed state in which it is seated on the seat portion 84 and in a fully opened state in which it is separated from the seat portion 84 by a predetermined distance. Since it has only two positions, it is possible to always supply a specified amount of water to the toilet bowl when performing antifreeze operation.

In the above-described embodiment, the remote handle 70 is configured to switch the forward and backward movements of the inner cable 94 by turning the grip 116. However, when the operating knob is pushed once, the knob is opened. The inner cable 94 is switched between forward and backward movement using a known knob locking mechanism in which the inner cable 94 is locked at the push-in position, and when the knob is pressed once more, the lock is released and the knob is pushed outward. You may do it.

[0048]

As described above, according to the present invention, when water is supplied from the flow valve to the toilet bowl to perform freeze prevention operation of the toilet bowl,
It is possible to always supply the specified amount of flowing water to the toilet bowl to reliably prevent freezing.

Further, according to the present invention, there is no opening for attaching the flow valve in the outer surface portion of the tank, and no water leaks from the opening.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a raw tank according to an embodiment.

FIG. 2 is a sectional view taken along line II-II in FIG.

3 is a cross-sectional view of the flow valve of FIG.

FIG. 4 is a side view of the remote handle of FIG.

5 is a cross-sectional view of the remote handle of FIG.

FIG. 6 is a perspective view showing a conventional example.

[Explanation of symbols]

32 outer tank 34 Inner tank 36 inner tank 38 Outflow pipe 40 check valve 42 Float valve device 44 overflow pipe 46 Seat part of float valve device 48 float valve 56 ball tap 58 Floating Ball (Floating Body) 60 flow valve 62 hose 70 Remote handle 72 Push-pull cable 82 waterways 84 Seat 86 valve body 88 return spring 92 Outer cable 94 Inner cable 116 grip

Claims (3)

(57) [Claims] 1. A tank having a tank having a float valve at the bottom, a ball tap for injecting water into the tank, and an inner tank provided inside the tank, in which a floating body of the ball tap is arranged. A tank with a flow valve, comprising a flow valve that draws water from the inner tank and supplies the flow water to the secondary side of the float valve. 2. The tank with a flow valve according to claim 1, wherein the flow valve is arranged only inside the tank, and a remote operation member for remotely operating the flow valve is provided. 3. The flow valve according to claim 2, wherein the flow valve includes a seat portion provided in the water channel, and a valve body seated on the seat portion.
A spring for urging the valve element in the seating direction is provided, and the remote operation stops only at a cable that pushes the valve element away from the seat portion, and at a position where the cable is in a forward position and a backward position. A tank with a flow valve, comprising: