JP2010071055A - Toilet stool washing water feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet stool washing water feeding device capable of draining water in a tub water storage part of a float securely and efficiently when a water feed valve is switched from a water discharge condition into a water cut-off condition. <P>SOLUTION: This toilet stool washing water feeding device 20 has a water feed pipe 22, the water feed valve 24 for switching between a water discharge condition and a water cut-off condition into a low tank 14 for washing water to be fed from the water feed pipe, the float 26 moving vertically in accordance with fluctuation of water level of the washing water in the low tank, and a lever arm 30 having one end part attached to the water feed valve turnably and the other end part fixed on the float. The float is provided with the tub water storage part 26b formed in its upper part, receiving at least a part of the washing water to be discharged from the water feed valve and storing it when the water feed valve is in the water discharge condition, and draining the stored washing water through drain ports 26e when the water feed valve is in the water cut-off condition. A plurality of drain ports in the tub water storage part are arranged along the whole periphery of a peripheral fringe part of the tub water storage part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a toilet flushing water supply device, and more particularly, to a toilet flushing water supply device that supplies flush water to a flush water tank of a flush toilet.

Conventionally, as an example of a toilet flushing water supply device that supplies flush water to a flush water tank such as a low tank of a flush toilet, toilet flush water provided with a ball tap (water supply valve) having a pilot-type diaphragm valve in the flush water tank A supply apparatus is known (see, for example, Patent Document 1).
In such a conventional toilet flushing water supply device, a water supply valve provided at the upper end of a water supply pipe connected to an external water supply source (water supply) has a float that moves up and down according to the water level in the washing water tank, By interlocking, water discharge and water stoppage from the water supply valve into the washing water tank can be switched. Moreover, the water supply valve is provided with the water discharge pipe which discharges wash water from the upper part to the dredged water storage part formed in the upper part of the float. As a result, when the water supply valve is in the water discharge state, jet water pressure downward from the water discharge pipe acts on the float in addition to buoyancy, and when the water supply valve changes to the water stop state, this jet water pressure does not act suddenly and floats. A large push-up force (buoyancy) acts on the. As a result, the water stop becomes unstable, and the phenomenon of so-called “hunting phenomenon”, in which the water discharge and water stop are repeated in small increments (so-called “hunting phenomenon”), is quickly passed in a short period of time. Occurrence is suppressed.

JP 2008-57160 A

  However, in the conventional toilet flushing water supply apparatus described above, when the water supply valve changes to the water stop state, the washing water stored in the float water storage part of the float is discharged from a part of the water storage part. However, if the float itself or the position of the dredged water storage unit is tilted when the water supply valve changes from the water discharge state to the water stopping state, There is a problem that the float hunts due to the remaining water in the dredged water storage section that could not be drained and could not be drained.

  In particular, the problem of float hunting caused by poor drainage of the dredged water storage section is not limited to the toilet flushing water supply device described in Patent Document 1 described above, and is a type of water discharged from the water supply valve to the dredged water storage section of the float. It is a problem to be solved that is common to toilet flushing water supply devices, and how to reliably and efficiently drain drainage of the float water storage part when the water supply valve switches from the water discharge state to the water stop state becomes a critical issue. ing.

  Therefore, the present invention has been made to solve the above-described problems and problems of the prior art, and when the water supply valve is switched from the water discharge state to the water stop state, the drainage in the dredged water storage portion of the float can be reliably performed. An object of the present invention is to provide a toilet flushing water supply device that can be efficiently performed and can prevent the occurrence of a float hunting phenomenon that occurs when a water supply valve is switched from water discharge to water stop.

In order to achieve the above object, the present invention is a toilet flushing water supply device for supplying flush water to a flush water tank of a flush toilet, comprising a water supply pipe connected to an external water supply source, and the water supply pipe. A water supply valve that supplies water to the cleaning water tank by switching water discharge and water stoppage into the cleaning water tank to be supplied, and moves up and down as the water level of the cleaning water in the cleaning water tank fluctuates A float arm and a lever arm that has one end rotatably attached to the water supply valve and the other end fixed to the float and moves up and down together with the float to switch water discharge and water stop of the water supply valve And the float portion is formed at an upper portion thereof, and receives and stores at least a part of the wash water discharged from the water supply valve when the water supply valve is in a water discharge state and stores the water supply valve. It is provided with a dredging water storage part that drains the wash water stored in the water stop state from the drainage port, and a plurality of drainage ports of the dredging water storage part are arranged along the entire peripheral edge of the dredging water storage part. It is said.
In the present invention configured as described above, since a plurality of drain outlets of the dredged water storage part of the float part are arranged along the entire circumference of the peripheral part of the dredged water storage part, even if the float part is inclined The wash water stored in the dredged water storage part can be reliably drained to the outside of the dredged water storage part through at least one of the plurality of drainage ports. In addition, when the water supply valve is in a water-stopped state, the wash water stored in the dredged water storage section is reliably drained to the outside, so that hunting of the float section can be reliably prevented. Furthermore, by reliably preventing hunting of the float part, it is possible to reliably prevent malfunction due to dust biting in the water supply valve.

In the present invention, preferably, a plurality of drain outlets of the dredged water storage section are arranged at substantially equal intervals along the entire periphery of the peripheral edge of the dredged water storage section.
In the present invention configured as described above, a plurality of drain outlets are arranged at substantially equal intervals along the entire periphery of the peripheral portion of the dredged water storage portion, so that the float portion is inclined in any direction. The wash water stored in the dredged water storage part can be reliably drained to the outside of the dredged water storage part through at least one of the plurality of drainage ports. In addition, when the water supply valve is in a water-stopped state, the wash water stored in the dredged water storage section is reliably drained to the outside, so that hunting of the float section can be reliably prevented. Furthermore, by reliably preventing hunting of the float part, it is possible to reliably prevent malfunction due to dust biting in the water supply valve.

In the present invention, preferably, the float portion includes an outer peripheral wall that forms the float portion main body and is located at a lower portion of the dredged water storage portion, and a drain outlet of the dredged water storage portion opens toward the outer peripheral wall.
In the present invention configured as described above, the washing water stored in the dredged water storage section of the float section flows down along the wall surface of the outer peripheral wall of the float section when drained from the drain port. The noise (water splashing) caused by water splashing can be prevented.

In the present invention, preferably, the float portion includes concave portions formed at substantially equal intervals so as to correspond to the positions of the drain outlets along the entire circumference of the outer peripheral wall.
In the present invention configured as described above, the wash water stored in the dredged water storage section of the float section is rectified by flowing down along the concave portion of the outer peripheral wall of the float section when drained from the drain port. Therefore, it is possible to suppress the noise generated due to the disturbance of the washing water and realize the noise reduction.

In the present invention, preferably, the water reservoir portion includes an inclined surface that is inclined obliquely downward from the center portion of the bottom surface portion to the entire periphery of the peripheral portion.
In the present invention configured as described above, a plurality of washing water stored in the dredging water storage unit is provided by an inclined surface inclined obliquely downward from the center of the dredging water storage unit to the entire periphery of the fringe. Through at least one of the drain outlets, the water can be reliably drained to the outside of the water reservoir. In addition, when the water supply valve is in a water-stopped state, the wash water stored in the dredged water storage section is reliably drained to the outside, so that hunting of the float section can be reliably prevented. Furthermore, by reliably preventing hunting of the float part, it is possible to reliably prevent malfunction due to dust biting in the water supply valve.

In the present invention, preferably, the water supply valve includes a water discharge portion that is disposed obliquely above the dredged water storage portion of the float portion and discharges at least a part of the wash water of the water pressure of the water supply source to the dredge water storage portion of the float portion. Yes.
In the present invention configured as described above, since the water discharge portion of the water supply valve is disposed obliquely above the dredged water storage portion of the float portion, the water supply valve can be used regardless of the direction in which the float portion is inclined. The water discharger can reliably discharge at least a part of the wash water having the water pressure of the water supply source toward the water storage part of the float part. Further, by disposing the water discharger obliquely above the dredged water storage part of the float part, the space around the water supply valve can be effectively used and made compact without interference of the water discharge part.

  According to the toilet flushing water supply device of the present invention, when the water supply valve changes from the water discharge state to the water stoppage state, the drainage in the float water storage portion of the float can be performed reliably and efficiently, and the water supply valve is stopped from the water discharge. It is possible to prevent the occurrence of a float hunting phenomenon that occurs when switching to.

Hereinafter, a toilet flushing water supply device according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, an example of a toilet bowl to which the toilet flushing water supply device of the present invention is applied will be described with reference to FIG. FIG. 1 is a cross-sectional view of a flush toilet to which the toilet flushing water supply device of the present invention is applied. As shown in FIG. 1, reference numeral 1 denotes a flush toilet. A bowl portion 2 is formed on the front side of the upper part of the flush toilet 1, a water guide channel 4 is formed on the rear side, and a lower side of the water guide channel 4. Are formed with drain trap lines 6 communicating with the bowl portion 2.

  An overhang-shaped rim 8 is formed on the upper edge of the bowl portion 2 of the flush toilet 1, and one or two rim spouts 10 through which flush water is supplied from the water conduit 4 are formed on the rim 8. The washing water descends while swirling so that the bowl part 2 can be washed. Further, a jet spout 12 to which wash water is supplied from the water conduit 4 is formed at the center lower portion of the bowl portion 2, and the wash water is spouted from the jet spout 12 toward the drain trap pipe 6, and the siphon Is to be generated in a short time.

  Above the water conduit 4 of the flush toilet 1, a low tank 14 which is a washing water tank for storing washing water is provided. A communication port 14 b communicating with the water conduit 4 of the flush toilet 1 is formed on the bottom surface 14 a of the low tank 14. As will be described later, various devices including the toilet flushing water supply device 20 of the present invention are provided inside the low tank 14.

Next, various devices provided in the low tank 14 will be described with reference to FIGS. 2 and 3. FIG. 2 is a front sectional view showing the inside of the low tank, and FIG. 3 is a plan view showing the inside of the low tank.
As shown in FIGS. 2 and 3, a drain valve 16, an overflow pipe 18, a water supply pipe 22, a water supply valve 24, and a float 26 are provided in the low tank 14.

  Specifically, the drain valve 16 includes a large washing valve body 16a and a small washing valve body 16b, and both the valve bodies 16a and 16b are provided in the communication port 14b portion of the bottom surface 14a of the low tank 14. ing. Each of the valve bodies 16a and 16b is connected to the ball chain 16e and 16f connected to the operation lever 28 via the respective drain valve floats 16c and 16d, and the operation lever 28 is operated. By switching between the large cleaning mode and the small cleaning mode, the large cleaning valve body 16a or the small cleaning valve body 16b is opened and closed.

  The drain valve 16 stores the wash water in the low tank 14 by the closing operation, and the wash water in the low tank 14 through the water conduit 4 of the flush toilet 1 by the opening operation, and the rim water discharge port 10 and the jet water discharge port. 12 is led.

  The overflow pipe 18 is provided so that an opening 18 a is formed at the upper end thereof and the lower end thereof communicates with the valve seat 16 g of the drain valve 16. Even if the water level of the washing water rises by this overflow pipe 18, the washing water overflows from the opening 18a, and further passes through the valve seat 16g of the drain valve 16 and further passes through the water conduit 4 of the flush toilet 1. After that, the rim water spouting port 10 and the jet water spouting port 12 are discharged into the bowl portion 2.

  Next, a toilet flushing water supply device 20 according to an embodiment of the present invention will be described with reference to FIGS. 4 is a perspective view showing the toilet flushing water supply device of the present embodiment, FIG. 5 is a longitudinal sectional view showing the toilet flushing water supply device of the present embodiment, and FIG. 6 is a perspective view of the present embodiment shown in FIG. It is the expanded sectional view which expanded the part of the water supply valve of the toilet bowl washing water supply device.

  First, as shown in FIGS. 2 to 6, the toilet flushing water supply device 20 of the present embodiment includes a water supply pipe 22, a water supply valve 24, a float 26 (details will be described later), and a lever arm 30. .

  The water supply pipe 22 is attached to the bottom surface 14 a of the raw tank 14, is connected to a water supply source (not shown) such as an external water supply, and supplies cleaning water into the raw tank 14. The water supply pipe 22 has a water supply passage 22a formed at the center, and a diaphragm type water supply valve 24 is provided at the downstream end of the water supply passage 22a (the right end of the water supply passage 22a in FIG. 5). Yes.

The water supply valve 24 is provided with a valve housing 24a, a diaphragm 24c which is provided in the valve housing 24a so as to be movable in the vertical direction, and opens and closes the seat surface 24b. The water supply valve 24 is attached to the diaphragm 24c and moves inside the valve housing 24a together with the diaphragm 24c. A valve body 24d that is integrally movable in the vertical direction is provided.
Further, a pilot hole (not shown) is formed in the diaphragm 24c, and the water supply path 22a of the water supply pipe 22 and the back pressure chamber 24e on the upper side of the diaphragm 24c are communicated with each other through the pilot hole (not shown). ing. A back pressure relief hole 24f is formed in the upper portion of the back pressure chamber 24e.

  In addition, a water discharge pipe 32 communicating with the water supply path 22a of the water supply pipe 22 through the diaphragm 24c is provided diagonally below the valve housing 24a of the water supply valve 24 on the float 26 side. In other words, the water discharge pipe 32 is disposed obliquely above a water reservoir 26b (details will be described later) formed in the upper part of the cylindrical main body 26a of the float 26, and is substantially the water pressure of a water supply source (not shown). Is functioning as a water discharge part that discharges at least a part of the wash water in the water supply path 22 a of the water supply pipe 22 toward the dredged water storage part 26 b of the float 26.

Further, a lever arm 30 is attached to the upper surface of the valve housing 24 a of the water supply valve 24. The lever arm 30 extends in a crank shape from one end portion (left end portion in FIGS. 2 to 6) 30a to the other end portion (right end portion in FIGS. 2 to 6) 30b, and the left end portion 30a supplies water. The valve 24 is rotatably attached to the upper surface of the valve housing 24a, and the right end 30b is fixed to the main shaft portion 26c of the float 26. A top seal 30c that opens and closes the back pressure relief hole 24f is attached to the left end 30a of the lever arm 30.
With such a configuration, the lever arm 30 can swing about the fulcrum 30d (see FIG. 4) when the right end 30b of the lever arm 30 moves up and down together with the float 30. Thus, water discharge and water stoppage of the water supply valve 24 can be switched.

  The water supply valve 24 includes a hand-washing water supply pipe 34 that is provided separately from the water supply pipe 22 in addition to the water discharge pipe 32. The hand-washing water supply pipe 34 is detachably fixed on the row tank 14 and connected to a hand-washing currant 14e provided on a lid 14d that forms a hand-washing bowl 14c on the upper surface thereof. Part of the wash water in the water supply path 22a of the water supply pipe 22 passes through the hand wash water supply pipe 34 and is discharged into the hand wash basin 14c from the spout 14f of the hand wash currant 14e, and into the low tank 14 from the drain 14g of the hand wash basin 14c. It is supposed to be drained.

Next, the details of the float 26 will be described with reference to FIGS. 2 to 5, 7 and 8. FIG. 7 is a plan view showing a float of the toilet flushing water supply device according to this embodiment, and FIG. 8 is a sectional view taken along the line VIII-VIII in FIG.
As shown in FIGS. 2 to 5, 7, and 8, the float 26 includes a dredge water storage portion 26 b formed on the upper portion of a cylindrical float main body 26 a, and extends upward from the central portion of the dredge water storage portion 26 b. And a main shaft portion 26c formed with a male thread so as to be screwed with the right end portion 30b of the lever arm 30.

The dredge water storage portion 26b of the float 26 is surrounded by a side wall 26d so that a predetermined volume of water discharged from the water discharge pipe 32 toward the dredge water storage portion 26b can be accommodated and stored. It has become.
The main shaft portion 26c of the float 26 can change the height position of the float by rotating around the axis, and the float 26 is set according to the standard water level (water line) set in the low tank 14. The position of can be adjusted.

  In addition, a plurality of elongated drainage ports 26e are arranged in the dredged water storage portion 26b of the float 26 so as to be formed at substantially equal intervals along the entire periphery of the peripheral portion. These drainage ports 26e penetrate in the axial direction of the dredged water storage portion 26b, and open toward the outer peripheral wall 26f that forms the float body 26a. Here, the drain outlet 26e may be formed below the center in the height direction of the side wall 26d of the dredged water storage part 26b in order to drain the washing water stored in the dredged water storage part 26b more reliably from the outside. Preferably, it is most preferably formed in the bottom face part of the dredged water storage part 26b.

  Further, a vertical groove 26g, which is a recess formed at substantially equal intervals so as to correspond to the position of the drain outlet 26e of the dredged water storage portion 26b, is formed on the wall surface of the outer peripheral wall 26f of the float body 26a. Has been. The vertical groove 26g forms a concave groove in which the cross section of the groove is recessed inward in the radial direction of the float body 26a.

Moreover, in the bottom face part of the dredged water storage part 26b, an inclined surface 26h that is inclined obliquely downward is formed from the center part to the entire periphery of the peripheral part.
In particular, in the cross section of the inclined surface 26h of the dredged water storage portion 26b shown in FIG. 8, when the inclination angle α with respect to the horizontal plane is set to a large angle, the discharge performance from the discharge port 26e increases, but the amount of water stored in the dredged water storage portion 26b decreases. Or the screw cost of the main shaft portion 26c cannot be secured. Further, as the inclination angle α is increased, the side wall 26d is also increased, and the weight of the float 26 itself and the amount of water stored in the dredged water storage portion 26b are increased, which causes a problem that a large buoyancy to the float 26 is required. In order to solve these problems, the inclination angle α is preferably set to 1 ° to 15 °, more preferably set to 5 ° to 10 °, and set to 6 ° to 8 °. Is most preferred.

  Next, the operation (action) of the toilet flushing water supply device according to the embodiment of the present invention will be described with reference to FIGS. Here, FIG. 9 is a longitudinal sectional view showing the toilet flushing water supply device of the present embodiment similar to FIG. 5, and shows a state where the water supply valve is opened. FIG. 10 is an enlarged cross-sectional view in which a portion of the water supply valve of the toilet flushing water supply device of the present embodiment shown in FIG. 9 is enlarged.

First, when the washing water is sufficiently stored in the low tank 14, the washing water level is the full water level A (see FIG. 2). At this time, the water supply valve 24 and the like are in the following state.
That is, as shown in FIGS. 4 to 6, the float 26 is raised to the upper position, and the buoyancy causes the lever arm 30 to be urged counterclockwise around the fulcrum 30d. The left end portion 30a of 30 is pushed downward. As a result, the top seal 30 c at the left end 30 a of the lever arm 30 closes the back pressure relief hole 24 f of the water supply valve 24. At this time, the back pressure chamber 24e and the water supply path (primary side) 22a of the water supply pipe 22 are communicated with each other by a pilot hole (not shown) of the diaphragm 24c. Side) 22a is equalized. As a result, the diaphragm 24c and the valve body 24d are moved downward and closed according to the area ratio of pushing the diaphragm 24c (back pressure chamber side area> primary side area). ing.

  Next, after the flush toilet 1 is used, when the toilet user operates an operation lever (not shown), for example, in the case of large washing, both the valve bodies 16a and 16b of the drain valve 16 are opened. The flush water stored in the low tank 14 is poured into the flush toilet 1 to wash the flush toilet 1. Finally, the water level in the low tank 14 is the water level B (see FIG. 2) which is empty.

Thereafter, the drain valve 16 is closed, and cleaning water is supplied into the raw tank 14 from an external water supply source (water supply) from the empty state (water level B) of the cleaning tank 14. At this time, the water supply valve 24 and the like are in the following state.
That is, as shown in FIGS. 9 and 10, the float 26 is lowered to a lower position, exposed from the cleaning water, and hung from the air at the right end 30 b of the lever arm 30. At this time, the left end 30a of the lever arm 30 is urged clockwise around the fulcrum 30d by the weight of the float 26 and pushed upward. At this time, the top seal 30c at the left end 30a of the lever arm 30 opens the back pressure release hole 24f of the water supply valve 24, and the back pressure chamber 24e is opened to the atmosphere. As a result, the diaphragm 24c and the valve body 24d are pushed by the pressure (tap pressure) in the water supply channel (primary side) 22a and move upward, and are opened.

  When the water supply valve 24 is opened, cleaning water is supplied from an external water supply source (water supply) to the water supply path 22 a (primary side) of the water supply pipe 22. Part of the wash water in the water supply path 22a of the water supply pipe 22 passes through the hand wash water supply pipe 34 and is discharged into the hand wash basin 14c from the spout 14f of the hand wash currant 14e, and into the low tank 14 from the drain 14g of the hand wash basin 14c. Drained. As a result, the water level in the low tank 14 gradually increases.

At this time, the wash water W is also supplied from the water supply channel 22a (primary side) of the water supply pipe 22 to the water discharge pipe 32, as indicated by W in FIG. 32, water is discharged toward the dredged water storage portion 26b of the float 26 that is obliquely below. As a result, when the float 26 rises and floats in the wash water, the float 26 has upward buoyancy, the weight of the wash water stored in the dredged water storage portion 26b (downward), and the discharge. A downward pressing force due to water discharge from the water pipe 32 is acting.
When the water reservoir 26b is filled with cleaning water, it overflows from the upper end of the side wall 26d or is discharged from the drain 26e and supplied into the low tank 14.

  Thereafter, when the water level in the low tank 14 rises to the full water level A shown in FIG. 2, as described above, the water supply valve 24 is closed and the supply of the wash water into the low tank 14 is stopped.

  Further, as shown in FIG. 8, the wash water W in the dredged water storage portion 26b of the float 26 discharged from the water discharge pipe 32 is inclined when the water supply valve 24 switches from the discharged water state to the stopped water state. It flows toward the drain outlet 26e along the surface 26h. Thereafter, the wash water W that has flowed into the drain ports 26e flows down along the longitudinal grooves 26g formed on the wall surface of the outer peripheral wall 26f of the float body 26a corresponding to the position of each drain port 26e, and is rectified. 14 is supplied.

According to the toilet flushing water supply device 20 according to the embodiment of the present invention described above, the lever arm 30 is moved from one end (left end in FIGS. 2 to 6) 30a to the other end (right end in FIGS. 2 to 6). Part) 30b extends in a crank shape, the left end 30a is rotatably attached to the upper surface of the valve housing 24a of the water supply valve 24, and the right end 30b is fixed to the main shaft 26c of the float 26. When the water supply valve 24 switches from the water discharge state to the water stop state in accordance with the rotation of the left end 30a of the lever arm 30 and the vertical movement of the right end 30b, the float 26 and the dredged water storage portion 26b are easily inclined. ing. However, even when the float 26 and the dredged water storage portion 26b are inclined, a plurality of drain ports 26e of the dredged water storage portion 26b of the float 26 are arranged at substantially equal intervals along the entire peripheral edge of the dredged water storage portion 26b. Therefore, it is possible to reliably drain the wash water W stored in the dredged water storage unit 26b to the outside of the dredged water storage unit 26b through at least one of the plurality of drain ports 26e.
Further, when the water supply valve 24 is in a water stop state, the wash water W stored in the dredged water storage portion 26b is reliably drained to the outside, so that the hunting of the float 26 can be reliably prevented.
Further, by reliably preventing hunting of the float 26, the opening / closing portion between the back pressure relief hole 24f of the water supply valve 24 and the top seal 30c of the lever arm 30, and the diaphragm 24c and the seat surface 24b of the valve housing 24a are formed. It is possible to reliably prevent a malfunction due to dust biting or the like in the opening / closing portion.
In addition, since a plurality of drain outlets 26e are arranged at substantially equal intervals along the entire circumference of the peripheral edge of the dredged water storage part 26b, the size of each drain outlet 26e can be reduced, and as a result, the float 26 is downsized. it can.

  In addition, according to the toilet flushing water supply device 20 of the present embodiment, when the washing water W stored in the tub water storage portion 26b of the float 26 is drained from the drain port 26e, it corresponds to the position of the drain port 26e. Since it flows down along the longitudinal groove 26g formed in the wall surface of the outer peripheral wall 26f of the float body 26a and is rectified, it is possible to prevent noise (water splashing sound) due to splashing of the washing water. Moreover, the noise generated by the disturbance of the washing water can be suppressed and noise reduction can be realized.

  Furthermore, according to the toilet flushing water supply device 20 of the present embodiment, the water is stored in the water storage part 26b by the inclined surface 26h that is inclined obliquely downward from the center of the water storage part 26b of the float 26 to the entire periphery of the peripheral part. The washed water W can be reliably drained to the outside of the dredged water storage portion 26b through at least one of the plurality of drain ports 26e.

  Further, according to the toilet flushing water supply device 20 of the present embodiment, since the water discharge pipe 32 of the water supply valve 24 is disposed obliquely above the water reservoir 26b of the float 26, the float 26 and the water reservoir 26b are Even in the inclined state, the water discharge pipe 32 of the water supply valve 24 surely discharges at least a part of the wash water of the water pressure of the water supply source (not shown) toward the dredged water storage part 26b of the float 26. be able to. Further, by arranging the water discharge pipe 32 obliquely above the dredged water storage portion 26b of the float 26, the space around the water supply valve 24 can be effectively utilized and made compact without the water discharge pipe 32 interfering.

  As mentioned above, although preferable embodiment of this invention was described, it is not limited to embodiment mentioned above, You may add various changes to these. In particular, in the embodiment described above, the lever arm 30 extends in a crank shape from the left end portion 30a to the right end portion 30b, and the left end portion 30a is rotatably attached to the upper surface of the valve housing 24a of the water supply valve 24. The right end portion 30b is fixed to the main shaft portion 26c of the float 26, but the lever arm may be configured to extend linearly from the left end portion to the right end portion, or the left end You may connect an edge part and a water supply valve | bulb via another member, or you may connect a right side edge part and a float via another member.

It is sectional drawing of the flush toilet with which the toilet bowl washing water supply apparatus by one Embodiment of this invention is applied. It is front sectional drawing which shows the inside of the low tank containing the toilet bowl washing water supply apparatus by one Embodiment of this invention. It is a top view which shows the inside of the low tank containing the toilet bowl washing water supply apparatus by one Embodiment of this invention. It is a perspective view which shows the toilet bowl washing water supply apparatus by one Embodiment of this invention. It is a longitudinal cross-sectional view which shows the toilet bowl washing water supply apparatus by one Embodiment of this invention. It is the expanded sectional view which expanded the part of the water supply valve | bulb of the toilet bowl washing water supply apparatus by one Embodiment of this invention shown in FIG. It is a top view which shows the float of toilet bowl washing water supply by one Embodiment of this invention. It is VIII-VIII sectional drawing of FIG. It is a longitudinal cross-sectional view which shows the toilet bowl washing water supply apparatus by one Embodiment of this invention similar to FIG. 5, and has shown the state which the water supply valve opened. It is the expanded sectional view which expanded the part of the water supply valve | bulb of the toilet bowl washing water supply apparatus by one Embodiment of this invention shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Bowl part 4 Water conduit 6 Drain trap conduit 8 Rim 10 Rim spout 12 Jet spout 14 Low tank 14a Bottom of the bottom tank 14b Communication port 14c Hand wash bowl 14d Lid 14e Hand wash currant 14f Hand wash currant spout 14g Hand wash bowl 16 Drainage valve 16 Drain valve 16 a Large wash valve 16 b Small wash valve 16 c, 16 d Drain valve float 16 e, 16 f Ball chain 16 g Valve seat 18 Overflow pipe 20 Toilet flush water supply device 22 Water supply pipe 22 a Water supply Path 24 Water supply valve 24a Valve housing 24b Seat surface 24c Diaphragm 24d Valve body 24e Back pressure chamber 24f Back pressure release hole 26 Float 26a Float main body 26b Water storage portion 26c Main shaft portion 26d Water storage portion side wall 26e Water storage portion drain port 26f Float book The outer peripheral wall 26g flutes 26h tub reservoir right end 30c top seal 30d fulcrum 32 water discharge pipe 34 hand washing water supply pipe of the left end portion 30b lever arm of the inclined surface 28 the operation lever 30 lever arm 30a the lever arm of the

Claims (6)

A toilet flushing water supply device for supplying flush water to a flush water tank of a flush toilet,
A water pipe connected to an external water source;
A water supply valve for switching the water discharge and stop water into the cleaning water tank supplied from the water supply pipe to supply the cleaning water into the cleaning water tank;
A float unit that moves up and down with fluctuations in the level of the cleaning water in the cleaning water tank;
A lever arm portion that is pivotally attached to the water supply valve and has the other end fixed to the float portion and moved up and down together with the float portion to switch water discharge and water stop of the water supply valve,
The float portion is formed at an upper portion thereof, and receives and stores at least a part of the wash water discharged from the water supply valve when the water supply valve is in a water discharge state and stores the water in the water stop state. A toilet flushing water characterized by comprising a dredging reservoir that drains the stored washing water from a drain, and a plurality of drains of the dredging reservoir are arranged along the entire circumference of the peripheral edge of the dredging reservoir Feeding device.   The toilet flushing water supply device according to claim 1, wherein a plurality of drain outlets of the basket water storage section are arranged at substantially equal intervals along the entire circumference of the peripheral edge of the paddle water storage section.   The float portion includes an outer peripheral wall that forms the float main body and is positioned below the dredged water storage portion, and the drainage port of the dredged water storage portion opens toward the outer peripheral wall. A toilet flushing water supply device according to claim 1.   The toilet flushing water supply device according to claim 3, wherein the float portion includes recesses formed at substantially equal intervals along the entire circumference of the outer peripheral wall so as to correspond to the position of the drainage port.   2. The toilet flushing water supply device according to claim 1, wherein the tub water storage section includes an inclined surface that is inclined obliquely downward from the center of the bottom surface to the entire periphery.   The water supply valve is disposed obliquely above the dredged water storage part of the float part, and includes a water discharge part that discharges at least a part of the wash water having the water pressure of the water supply source to the dredged water storage part of the float part. The toilet flushing water supply device according to 1.

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