JPH11210043A - Water-saving device for flush tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save water without decreasing the draining power by providing a vertically movable float slidably fitted to an overflow pipe set in a flush tank, and a working body opening a valve fitted at the lower part of the vertically movable float. SOLUTION: When a flush water lever 15 is operated, a spherical valve body 12 is raised to open a valve disc 11 and the storage water W1 in the tank body 2 is discharged through the valve disc 11 and a water pipe 8 to a toilet seat body 1 in this order to wash the toilet seat body 1. An actuating body closing the valve attached to the lower part of a vertically movable float 31 presses the spherical valve body 12 from above through a weight 42 for an opening load and a fitting body 43 of the weight, in accordance with the decrease of the level of the storage water W1, and the spherical valve body 12 opens the valve disc 11 to cut off discharge water. In this way, since the actuating piece for closing the valve goes down prior to the descending movement of the vertically movable float 31 and presses the spherical valve body 12 to forcibly close the valve disc 11, the quantity of discharge water can be restricted and hence, water can be economized without decreasing the power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a water-saving device for a flush tank.

[0002]

2. Description of the Related Art Conventionally, as one form of a flush tank (a so-called low tank) provided in a flush toilet, FIGS.
As shown in FIG.
A water stop valve (not shown) is provided in the water supply section b, and a water stop valve opening / closing operation link c is interlockedly connected to the water stop valve,
While the float d is connected to the water shutoff valve opening / closing operation link c via the float connection rod e, a drain valve f is provided at the bottom of the tank body a, and the drain valve f is provided with an overflow pipe g extending upward. The lower end is connected and connected, and the upper end of the drain pipe h extending downward is connected and connected.

The drain valve f is formed of a valve seat j and a spherical valve k which is attached to and detachable from the valve seat j to open and close the valve seat j. Body k, tank body a
Is connected to the connecting rod n via a connecting chain p.

When the flushing lever m is operated to separate the spherical valve body k from the valve seat j via the connecting rod n and the connecting chain p to open the valve, the water W1 in the tank body a is opened. Is discharged into the drain pipe h through the drain valve f.

[0005] The spherical valve element k
Closes the valve seat j.

When the float d is lowered to the lowest position due to the decrease in the water storage W1, the water shutoff valve is opened and water is supplied from the water supply section b as shown in FIG.

When the float d rises due to such water supply and the water storage W1 reaches a predetermined water level, as shown in FIG. 24, the water stop valve c interlockingly connected to the float d is closed and the water supply portion b is closed. Water supply is stopped.

As described above, the amount of water discharged from the drain pipe h from the opening of the valve seat j to the closing of the valve seat j of the spherical valve body k is set to be substantially constant.

[0009]

However, in the above-mentioned washing tank, the amount of drainage is set to be substantially constant, and cannot be adjusted appropriately.
For some users, a container or the like having a certain volume or more is sunk in the tank body a in order to reduce the amount of drainage for the purpose of saving water so as to reduce the amount of water in the tank body a.

However, in this case, since the amount of water is small, the power of drainage discharged as washing water is weakened, and there is a problem that the washing effect cannot be secured.

[0011]

Therefore, the present invention comprises an elevating float body slidably mounted on an overflow pipe provided in a flush tank and a valve closing body mounted on a lower portion of the elevating float body. It is another object of the present invention to provide a water-saving device for a washing tank.

The present invention also has the following configuration.

The elevating float body includes a float main body formed in a hollow box shape with a lower end opening, and a mounting portion provided in the float main body and rotatably mounted on the overflow pipe around its axis. The mounting part is arranged so as to be biased to one side of the float body.

The valve-closing member has a support cylinder attached to the vertically movable float body so as to be vertically adjustable, and a valve-closing member attached to a lower portion of the support cylinder.

[0015] The valve closing action piece is formed in a flange shape projecting in a radial direction from the support cylinder.

[0016] The valve closing action piece is formed in a rod shape extending downward from the support cylinder.

[0017]

Embodiments of the present invention will be described below.

That is, the water-saving device for a washing tank according to the present invention comprises an elevating float body slidably mounted on an overflow pipe provided in the rinsing tank, and a valve closing body mounted on a lower end of the elevating float body. doing.

In this way, by attaching the lifting float to the overflow pipe so as to be able to move up and down, and attaching the valve closing action body to the lower end of the lifting float, the flushing operation is performed and the drainage is performed. As the water level of the water stored in the washing tank decreases, the lifting and lowering float body descends, and the valve closing body attached to the lower end of the lifting and lowering float body also lowers integrally. Is forcibly closed.

Therefore, the drain valve is closed before all of the normally used waste water is discharged, so that the remaining water amount in the washing tank can be increased, and water can be saved by the increased remaining water amount. .

At this time, since the elevating float rises and descends along the overflow pipe, it can be reliably synchronized with a change in the water level of the water stored in the washing tank. As a result, the valve closing mechanism attached to the elevating float is mounted. The action of closing the drain valve by the action body is also ensured, and a good water saving effect can be ensured.

In addition, when the water-saving device for the washing tank is used, the fullness of the water in the washing tank is substantially the same as in the case of normal use, so that the momentum of the drainage can be secured in this case. Thus, a good cleaning effect can be ensured.

The elevating float body has a float main body formed in a hollow box shape with a lower end opening, and a mounting portion provided on the float main body and rotatably mounted on the overflow pipe around its axis. The mounting portion is arranged so as to be biased to one side of the float main body.

In this way, the position of the elevating float can be changed to a desired position by rotating the float about the axis of the overflow pipe.

Therefore, even when the shape and size of the washing tank provided with the water-saving device for the washing tank are different, it can be adapted by appropriately changing the position of the lifting / lowering float body.

The valve-closing member has a support cylinder mounted on the vertically movable float body so as to be vertically adjustable, and a valve-closing member mounted below the support cylinder.

[0027] In this manner, by mounting the support cylinder on the elevating float body while adjusting the vertical position, the timing at which the valve closing action piece attached to the support cylinder acts on the drain valve can be changed. , The amount of water saving can be appropriately adjusted.

Further, the valve-closing action piece is formed in a flange shape projecting from the support cylinder in the radial direction.

In this way, even when the position of the lifting / lowering float body is changed by rotating, the drain valve can be reliably closed by the flange-shaped valve-closing action piece, and the water-saving effect can be secured well. can do.

Further, the valve closing action piece can be formed in a rod shape extending downward from the support cylinder.

In this manner, at the position immediately above the drain valve,
Even if a rise regulating body or the like that regulates the elevation of the spherical valve body is provided, and the rise regulation body becomes an obstacle in the flange-like valve closing action body, the drain valve is surely secured by the rod-like valve closing action piece. The valve can be closed, and a good water saving effect can be secured.

[0032]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show a state in which a water-saving device A for a washing tank according to the present invention is mounted in a washing tank T. FIG.

First, the water washing tank T will be described. In the water washing tank T, as shown in FIGS. 1 and 2, a tank body 2 having an upper surface opening is placed on a toilet body 1,
A lid 3 is attached to the upper end of the tank body 2 so as to be freely opened and closed,
A water supply unit 4 is provided above the left side wall 2a of the tank body 2, and a water stop valve (not shown) is built in a base of the water supply unit 4, and a water stop valve opening / closing operation link 5 is interlocked with the water stop valve. The base end of the float connecting rod 6 is connected to the water shutoff valve opening / closing operation link 5, and a float 18 is attached to the distal end of the float connecting rod 6. 19 is a water supply pipe and 20 is a tank fixing bolt.

A drain hole 7 is formed at the center of the bottom 2b of the tank body 2, a drain pipe 8 is inserted into the drain hole 7, and the inside of the tank body 2 and the toilet bowl are inserted through the drain pipe 8. A drain valve 9 is provided at the upper end of the drain pipe 8 to communicate with the inside of the main body 1,
The overflow pipe 10 is formed to rise upward from the drain valve 9. 21 is a connecting pipe.

The drain valve 9 has a valve seat 11 attached to the upper end of the drain pipe 8 and a spherical valve 12 which is attached to and detachable from the valve seat 11 to open and close the valve seat 11. And formed from.
13 is a spherical valve body support arm, and 14 is a pivot pin.

In addition, the spherical valve body 12 is operatively connected to a washing lever 15 mounted on the upper part of the right side wall 2c of the tank body 2 via a connecting rod 16 and a connecting chain 17.

Next, a water-saving device A for a washing tank as a first embodiment according to the present invention will be described with reference to FIGS.

That is, the water-saving device A for the washing tank is shown in FIG.
As shown in FIG. 3 to FIG. 3, there is provided an elevating float body 31 slidably mounted on an overflow pipe 10 provided in the tank body 2 and a valve closing action body 32 mounted on a lower end of the elevating float body 31. .

As shown in FIGS. 3 to 12, the lifting float body 31 includes a float body 36, a mounting portion 37 concentrically connected to the float body 36, and an outer peripheral surface of the mounting portion 37 and the float body. A reinforcing rib 38 interposed between the inner peripheral surface of the reinforcing member 36 and the inner peripheral surface thereof is integrally formed.

The float main body 36 is shown in FIGS.
As shown in the figure, an arc-shaped peripheral wall forming piece 36a and a plate-shaped peripheral wall forming piece 36b interposed between both ends of the arc-shaped peripheral wall forming piece 36a.
And a ring-shaped ceiling wall forming piece 36c stretched over the upper ends of the peripheral wall forming pieces 36a and 36b.

The mounting portion 37 is formed in a tubular shape extending vertically and having the same height as the float main body 36, and an upper peripheral edge is continuously provided to an inner peripheral edge of the ceiling wall forming piece 36c. At the same time, one side of the peripheral wall is connected to the plate-shaped peripheral wall forming piece 36b, and a spiral engaging ridge 37a is formed on the inner peripheral surface.

The reinforcing ribs 38 are formed in a thin plate shape, and five ribs are arranged circumferentially at intervals from the same center of the float body 36 and the mounting portion 37 which are arranged concentrically. The ribs 38 hang down from the ceiling wall forming piece 36c between the inner peripheral surface of the arc-shaped peripheral wall forming piece 36a of the float body 36 and the outer peripheral wall of the mounting portion 37.

As described above, the lifting / lowering float body 31 is formed to be thin as a whole, the strength is secured by the reinforcing ribs 38, and six buoyancy forming chambers 39 having a lower end opening are formed therein. The lift body 31 itself is given an appropriate buoyancy by the buoyancy forming chambers 39, so that the float body 31 moves up and down smoothly as the amount of water stored in the tank body 2 increases and decreases.

As shown in FIGS. 3 to 5, the valve-closing action body 32 is mounted on the lifting / lowering float body 31 so as to be adjustable up and down, and is detachably fitted to the lower end of the support cylinder 40. And a valve closing action piece 41 to be attached.

As shown in FIG. 11, the support cylinder 40 has an inner diameter that is fitted to the outer peripheral surface of the overflow tube 10 so as to be slidable up and down, and has a male screw portion 40a formed on the outer peripheral surface.
The male screw portion 40a is screwed onto a helical engagement ridge 37a formed on the mounting portion 37 of the lifting float body 31, so that the support cylinder 40
By rotating the support cylinder 40 forward and backward, the support cylinder 40 is moved up and down from the elevating float body 31 so that the vertical position can be adjusted, and a fitting flange for fitting and attaching the valve closing action piece 41 to the lower end portion is provided. A portion 40b is formed.

As shown in FIGS. 4 and 5, the valve closing action piece 41 includes a ring-shaped fitting mounting portion 41a and a fitting mounting portion 41a.
And a flange-shaped action portion 41b formed so as to protrude in the radial direction from the outer peripheral surface of the support tube 41a. The fitting attachment portion 41a is detachably fitted to the lower end of the support cylinder 40.

The flange-shaped action portion 41b of the valve-closing action piece 41
Is formed by connecting a substantially half-moon-shaped detachable piece 41d to a main body forming piece 41c via a disconnecting connection piece 41e.

In this manner, the detachable piece 41d is connected to the disconnecting piece 41e as necessary, for example, in order to prevent the detachable piece 41d from interfering with the tank body 2.
It is also possible to further separate and use only the main body forming piece 41c.

Here, as shown in FIGS. 3 and 4, a valve closing load heavy drop 42 is attached to the connecting chain 17 via a heavy hanging attachment 43.

As shown in FIGS. 12 and 13, the valve closing load double drop 42 has a substantially C-shape in plan view and is formed in a thin plate shape. And a communication passage for attachment and detachment communicating with the connection chain insertion hole 44 on one side.
Forming 45.

As shown in FIGS. 14 to 17, the double hanging attachment 43 has a notch 46 for attachment and detachment formed in a vertical direction on a peripheral wall of a cylindrical attachment body 43a. Body 43
In the lower part of the peripheral wall of a, a double hanging fitting recess 47 is formed.

In this manner, the valve closing load hanging rod 42 is fitted and fitted into the hanging hanging fitting recess 47 of the hanging mounting body 43, and the valve closing load hanging rod 42 is attached to the circumference of the mounting body 43a. In the direction
By attaching the detachable communication passage 45 to the detachable notch groove 46, the valve closing load hanging rod 42 is integrally inserted into the connecting chain 17 together with the hanging rod attaching body 43, and from this state, the valve closing load hanging rod 42 is inserted. By rotating the double hanging member 42 in the circumferential direction, the detachable notch groove 46 and the detachable communication passage 45 are formed.
Can be easily attached to the connecting chain 17.

By reversing the procedure opposite to that described above, the valve closing load heavy drop 42 can be easily removed from the connecting chain 17.

Next, the operation of the water-saving device A for the washing tank will be described with reference to FIGS.

That is, when the flush lever 15 is operated, the spherical valve body 12 is pulled upward through the connecting rod 16 and the connecting chain 17, the valve seat body 11 is opened, and the water storage W1 in the tank body 2 is opened. Is drained into the valve seat 11 → drain pipe 8 → toilet body 1,
The inside of the toilet body 1 is washed with water.

Then, as the water level of the stored water W1 decreases, the valve closing action piece 41 attached to the lower portion of the lifting / lowering float body 31 causes the spherical valve body 12 to attach the valve closing load heavy drop 42 and / or the heavy drop mounting body 43. , The spherical valve body 12 closes the valve seat body 11 and the drainage is stopped.

At this time, the float body of the lifting float body 31
Since 36 has a buoyancy forming chamber 39 with a lower opening,
At the time of lowering of the lifting / lowering float body 31, the pressing force acting on the spherical valve body 12 via the valve-closing action piece 41 is weakened. By applying the load, the valve closing operation of the spherical valve body 12 can be ensured.

Further, as the water level of the stored water W1 decreases, the float connecting rod 6 rotates downward in conjunction with the lowering operation of the lifting / lowering float body 31, and the water shutoff valve is opened via the water shutoff valve opening / closing operation link 5. The valve is opened, and water is supplied from the water supply unit 4.

As described above, the valve closing action piece 41 descends prior to the lowering of the lifting / lowering float body 31, and presses the spherical valve body 12 to forcibly close the valve seat body 11. Can be restricted, and the water saved in the reservoir W1 can be saved accordingly.

At this time, by adjusting the vertical position of the support cylinder 40, the valve-closing action piece 41 attached to the support cylinder 40 becomes a spherical valve body.
It is possible to adjust the timing of the action on 12, and as a result, the amount of water saving can be easily adjusted.

FIGS. 18 to 23 show a state in which a water-saving device A for a washing tank according to a second embodiment is mounted in a washing tank T. In the washing tank T, an overflow pipe is provided.
An ascending regulating body 58 that regulates the ascending of the spherical valve body 12 is attached to the lower portion of 10, so that the water saving effect can be ensured despite the existence of such ascending regulating body 58.

The water-saving device A for the washing tank is
The basic structure is the same as that of the water-saving device A for a flush tank according to the first embodiment, but the structure of the valve closing action piece 41 is different.

That is, the valve closing action piece 41 is
As shown in FIG. 23, a ring-shaped fitting mounting portion 50, a support portion 51 integrally formed on the front outer peripheral surface of the fitting mounting portion 50,
A substantially C-shaped guide section 52 detachably attached to the front end of the support section 51, and a bifurcated rotation restricting section 53 having an upper end detachably attached to the rear of the support section 51; It is formed from a rod-shaped action portion 54 attached to the front portion of the support portion 51.

The fitting mounting portion 50 is detachably fitted to and attached to the lower end of the support cylinder 40.

The support portion 51 has a pair of left and right guide mounting grooves 55, 55 formed at the front end, a rotation restricting portion mounting hole 56 formed at the rear, and a rod-shaped acting portion mounting hole 57 formed at the front. Is formed.

The guide portion 52 can be mounted by detachably fitting fitting pieces 52a, 52a formed at both ends into a pair of left and right guide mounting grooves 55, 55 formed in the support portion 51. The connecting chain 17 is formed by the guide section 52 and the front end of the supporting section 51.
Is formed into a ring shape that can be inserted, and during the washing operation, the connecting chain 17 is always guided in a substantially vertical direction as shown in FIGS. So that it can be pulled upward.

As shown in FIGS. 20 to 23, the rotation restricting portion 53 is provided with a restricting portion support piece 53a and a protrusion protruding upward from the restricting portion support piece 53a. It is formed of a pair of left and right mounting claw pieces 53b, 53b that can be detachably inserted, and a pair of left and right regulating pieces 53c, 53c formed by extending downward from the regulating part support piece 53a. 53c is a base of a rising regulating body 58 attached to a lower part of the overflow pipe 10.
Arranged on the left and right sides of 58a, the valve closing action piece 41, in particular, the rod-shaped action portion 54, is regulated to rotate up and down along the same base portion 58a without rotational displacement.

The rod-shaped action portion 54 has a locking / mounting piece 54 at the upper end.
a, and is bent forward and downward from the locking / mounting piece 54a, and is vertically suspended straight downward, so that the lower end has an abutting surface.
A locking / mounting piece 54a at the upper end is detachably mounted in the rod-shaped action portion mounting hole 57.

As described above, the water-saving device A for the flush tank according to the second embodiment can save water as well as the water-saving device A for the flush tank according to the first embodiment. Can be easily adjusted.

[0071]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, there is provided an elevating float body slidably mounted on an overflow pipe provided in a washing tank, and a valve closing body mounted on a lower portion of the elevating float body. Therefore, in the existing washing tank, remove the float connected to the float connecting rod, connect the lifting float to the float connecting rod via the connecting body, and raise and lower the float to the overflow pipe. By installing the valve-closing body at the lower end of the float body, the flushing operation can be performed, and when the water is drained, the rise and fall of the float in the flush tank can be reduced. The body descends, and the valve-closing body attached to the lower end of the lifting float body also descends integrally, and the valve-closing body forcibly closes the drain valve.

Therefore, the drain valve is closed before all the drain water for normal use is discharged, so that the remaining water amount in the washing tank can be increased, and the increased remaining water amount becomes the water saving amount.

At this time, since the elevating float body is moved up and down along the overflow pipe, it can be reliably synchronized with a change in the water level of the water stored in the washing tank. As a result, the valve closing mechanism attached to the elevating float body The action of closing the drain valve by the action body is also ensured, and a good water saving effect can be ensured.

In addition, when the water-saving device for the washing tank is used, the fullness of the water in the washing tank is almost the same as in the case of normal use, so that the momentum of the drainage can be secured in this case. Thus, a good cleaning effect can be ensured.

According to the second aspect of the present invention, the lifting / lowering float body is provided with a float main body formed in a hollow box shape with a lower end opening, and provided on the float main body so as to be rotatable around the axis of the overflow pipe. With this arrangement, the vertically movable float body can be rotated around the axis of the overflow pipe to change the position to a desired position.

Accordingly, even when the shape and size of the existing washing tank provided with the water saving device for the washing tank are different, it can be adapted by appropriately changing the position of the lifting / lowering float body.

According to the third aspect of the present invention, the valve-closing member has the support cylinder attached to the vertically movable float body so as to be vertically adjustable, and the valve-closing member attached to the lower portion of the support cylinder. In addition, by adjusting the vertical position of the support cylinder on the lifting float, the timing at which the valve closing action piece attached to the support cylinder acts on the drain valve can be changed, and as a result, the water saving amount can be adjusted appropriately can do.

According to the fourth aspect of the present invention, since the valve closing action piece is formed in a flange shape extending in the radial direction from the support cylinder, the valve closing action piece can be moved even when the lifting / lowering float is rotated to change the position. In addition, the drain valve can be reliably closed by the flange-shaped valve closing action piece, and the water saving effect can be ensured satisfactorily.

According to the fifth aspect of the present invention, since the valve closing action piece is formed in a rod shape extending downward from the support cylinder, the valve closing action piece is provided immediately above the drain valve with a flange-like valve closing action body. Even when equipment such as a guide body that is an obstacle is provided,
The drain valve can be reliably closed by the rod-shaped valve closing action piece, and the water saving effect can be ensured satisfactorily.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an operation at the time of drainage of a washing tank equipped with a water-saving device for a washing tank according to the present invention.

FIG. 2 is an explanatory view of an operation when drainage of the washing tank is stopped.

FIG. 3 is an explanatory perspective view of a water-saving device for a washing tank.

FIG. 4 is an explanatory sectional side view of the water-saving device for the flush tank.

FIG. 5 is a plan view of the water-saving device for the washing tank.

FIG. 6 is a side view of the float main body.

FIG. 7 is a plan view of the float main body.

FIG. 8 is a sectional view taken along line II of FIG. 6;

FIG. 9 is a sectional view taken along line II-II of FIG. 6;

FIG. 10 is a bottom view of the float main body.

FIG. 11 is a sectional side view of a support cylinder.

FIG. 12 is a plan view of a heavy drop for a valve closing load.

FIG. 13 is a side view of the heavy drop for the valve closing load.

FIG. 14 is a side view of the double attachment body.

FIG. 15 is a plan view of the double hanging body.

FIG. 16 is a bottom view of the double hanging body.

FIG. 17 is a cross-sectional side view of the double hanging body.

FIG. 18 is an explanatory view of an operation at the time of drainage of a flush tank equipped with a flush tank water saving device as a second embodiment.

FIG. 19 is an explanatory diagram of an operation when drainage of the washing tank is stopped.

FIG. 20 is a perspective view illustrating a water-saving device for a flush tank according to a second embodiment.

FIG. 21 is an explanatory side view of the water-saving device for the flush tank.

FIG. 22 is a front view of the water-saving device for the flush tank.

FIG. 23 is a sectional view taken along the line III-III of FIG. 21;

FIG. 24 is an explanatory view of an operation at the time of draining a conventional washing tank.

FIG. 25 is an explanatory view of an operation when drainage of a conventional washing tank is stopped.

[Explanation of symbols]

 A Water-saving device for washing tank 31 Floatable body 32 Lifting action body

Claims (5)

[Claims] 1. A water-saving device for a washing tank, comprising: a lifting / lowering float body slidably mounted on an overflow pipe provided in the washing tank; and a valve closing body mounted on a lower portion of the lifting / lowering float body. . 2. The lift body has a float main body formed in a hollow box shape with a lower end opening, and a mounting portion provided on the float main body and rotatably mounted on the overflow pipe around its axis. 2. The water-saving device for a flush tank according to claim 1, wherein the mounting portion is arranged so as to be biased to one side of the float body. 3. The valve-closing element has a support cylinder mounted on the vertically movable float body so as to be vertically adjustable, and a valve-closing piece mounted on a lower portion of the support cylinder.
Or the water-saving device for a washing tank according to 2. 4. The water-saving device for a flush tank according to claim 3, wherein the valve-closing action piece is formed in a flange shape extending in a radial direction from the support cylinder. 5. The water-saving device for a flush tank according to claim 3, wherein the valve closing action piece is formed in a rod shape extending downward from the support cylinder.