JP6066445B2 - Washing water tank apparatus and flush toilet equipped with the same - Google Patents

Description

  The present invention relates to a washing water tank apparatus for storing washing water for washing a toilet bowl, and more particularly to a washing water tank apparatus capable of storing washing water for washing a toilet bowl during a power failure, and a flush toilet equipped with the washing water tank apparatus.

Conventionally, as a wash water tank device for storing wash water for washing toilet bowls, a wash water tank that supplies wash water to the bowl portion of the toilet bowl, and an electric on-off valve that electrically opens and closes a water supply passage for supplying water to the wash water tank The thing equipped with these is known.
However, in the washing water tank apparatus as described above, since there was an inconvenience that the toilet bowl could not be washed because the electric on-off valve could not supply water to the washing water tank at the time of a power failure, a dry battery as a sub power source was provided to eliminate the inconvenience. Washing water tank devices are known.

Japanese Patent Laid-Open No. 02-125184

However, in the washing water tank apparatus provided with the dry battery, since the dry battery spontaneously discharges, it is necessary to perform maintenance such as periodically replacing the dry battery. In addition, since the number of times of use of the dry battery is limited, there is also a disadvantage that the remaining amount of the dry battery is relatively quickly lost especially at the installation site where the number of use is high, and water cannot be supplied to the washing water tank.
Furthermore, if the washing water tank apparatus simply does not employ the electric on-off valve, there is an inconvenience that the merit of providing the electric on-off valve is lost.
On the other hand, as shown in Patent Document 1, in the flash valve, the diaphragm valve is opened by driving the electric on-off valve at the time of non-power failure, and the toilet user manually operates at the time of power failure. There is disclosed a flush valve that opens a diaphragm valve only while pushing a knob and discharges flush water for washing a toilet.
However, unlike the flush valve, in the cleaning water tank apparatus, the user must manually perform the draining operation, and additionally manually perform the water supply operation to the cleaning water tank apparatus. Especially in the water supply operation, it is necessary to manually supply and stop the water after the user can see the inside of the cleaning water tank device, and the operation is complicated and difficult. Further, the user manually operates the cleaning water tank. When water is supplied and stopped, there is a problem that the amount of water supplied for cleaning water varies.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and provides a cleaning water tank apparatus that can automatically supply and stop cleaning water to a cleaning water tank in the event of a power failure. The purpose is that.

In order to achieve the above object, the present invention is a cleaning water tank device that can store cleaning water in the event of a power failure, and stores a cleaning water tank that stores cleaning water supplied to a toilet, and cleaning water from a water supply source. A water supply channel for supplying water to the water supply port in the tank, a valve seat provided in the water supply channel, a water stop state in which the water supply channel is closed by sitting on the valve seat, and a water supply channel separated from the valve seat The main valve body that switches between the water supply state that opens the valve and the main valve body is moved toward the valve seat when the internal pressure increases, and the main valve body is moved away from the valve seat when the internal pressure decreases. The communication chamber communicates the pressure chamber, the first pilot hole for releasing the pressure in the pressure chamber, the second pilot hole for releasing the pressure in the pressure chamber, and the pressure chamber and the second pilot hole. An electric on-off valve device that electrically opens and closes the water supply channel, the water supply channel, and the water supply channel A mechanical on-off valve device that mechanically opens and closes, and when at least one of the electric on-off valve device and the mechanical on-off valve device opens the water supply passage, the water supply in the washing water tank It is attached to the water supply flow path so that water is supplied to the mouth, the electric on - off valve device can open and close the first pilot hole, and the mechanical on-off valve device has the second pilot hole. The mechanical on-off valve device and the second pilot hole are disposed inside the washing water tank, and the electric on - off valve device and the first pilot hole are outside the washing water tank. The mechanical on-off valve device is configured such that a valve body that opens and closes a water supply flow path, a float that moves up and down in response to fluctuations in the level of wash water in the wash water tank, one connected to the float, and the other Is connected to the valve body and the float is And a swing member that swings by moving and mechanically opens and closes the valve body, and the communication flow path has a diameter-expanded portion having an inner diameter larger than that of the second pilot hole. It is characterized by.
In the present invention configured as described above, when the at least one of the electric on-off valve device and the mechanical on-off valve device opens the water supply passage, the electric on-off valve device and the mechanical on-off valve device are connected to the water supply port in the wash water tank. Since it is attached to the water supply channel so that water supply is performed, even when the electric on-off valve device is closed and does not operate at the time of a power failure, the mechanical on-off valve device does not float the mechanical on-off valve device. The swinging member swings by moving up and down according to the fluctuation of the cleaning water level in the cleaning water tank, the valve body can mechanically open and close the water supply channel, and the mechanical on-off valve device opens the water supply channel. In the case of opening, water is supplied to the water supply port in the washing water tank.
Therefore, the washing water can be supplied to the washing water tank by the electric on-off valve device and / or the mechanical on-off valve device when there is no power failure, and the washing water is automatically supplied to the washing water tank by the mechanical on-off valve device even during a power failure. Water can be supplied, and even in the event of a power outage, the wash water supplied to the toilet can be stored in a wash water tank to wash the toilet.
For example, since the mechanical on-off valve device can mechanically open and close the water supply flow path at the time of a power failure, a sub power source such as a dry cell for operating the electric on-off valve device electrically at the time of a power outage is unnecessary. Maintenance of the sub power source such as a dry battery can be eliminated, and the number of times of use of the washing water tank at the time of a power failure is not limited.
For example, in the event of a power failure, the mechanical on-off valve device swings when the float of the mechanical on-off valve device moves up and down in response to fluctuations in the level of the wash water in the wash water tank, The body can mechanically open and close the water supply flow path, and water supply to the water supply port in the washing water tank is automatically performed without requiring a user's water supply operation, so the user's water supply operation is omitted The operation of the user can be simplified. In addition, since there is no variation in the amount of water supplied by the user performing a water supply operation, the amount of cleaning water supplied to the cleaning water tank can be kept constant even during a power failure.
Further, in the present invention configured as described above, the electric on - off valve device can open and close the first pilot hole, and the mechanical on-off valve device opens and closes the second pilot hole. When the first pilot hole and the second pilot hole are closed, the pressure inside the pressure chamber rises and the main valve body is moved toward the valve seat to When the water supply flow path is closed by sitting on the seat and at least one of the first pilot hole and the second pilot hole is open, the pressure inside the pressure chamber is The water supply state is lowered, and the main valve body is moved away from the valve seat to open the water supply flow path.
Thus, the electric valve means, either mechanical valve means, it is possible to open and close the water supply channel by a common main valve body, to attach the electric valve means and the mechanical valve means separately There is no need to branch the water supply flow path, and the water supply flow path can be simplified.
Therefore, it is possible to supply cleaning water to the cleaning water tank through the same water supply flow path regardless of whether there is a power failure or non-power failure. It is possible to suppress variations in the water supply speed when water is supplied to the inside.
Further, in the present invention configured as described above, the electric on - off valve device is arranged outside the washing water tank to prevent the electric on - off valve device from malfunctioning due to wet air inside the washing water tank. be able to.
Further, in the present invention configured as described above, since the enlarged diameter portion is formed in the communication channel, pressure loss in the communication channel can be suppressed even when the distance of the communication channel is long. . Therefore, when the mechanical on-off valve device opens the second pilot hole, the pressure loss in the communication channel is increased, the pressure in the pressure chamber is not released from the second pilot hole, and the main valve body It is possible to prevent a problem that the cleaning water tank cannot be supplied without being separated from the valve seat.

In the present invention, preferably, it has a float switch that electrically detects the full water level of the wash water tank, the float of the mechanical on-off valve device is disposed at a position lower than the float switch, and the wash water tank is at the full water level. In such a case, the bottom surface of the float that has risen enters the water with respect to the full water level.
In the present invention configured as described above, the float of the mechanical on-off valve device is disposed at a position lower than the float switch, and when the washing water tank is at the full water level, the lower surface of the float is at the full water level. On the other hand, since it is in a state of entering the water, hunting that suppresses the fine movement of the float due to fluctuations in the water surface and continuously opens and closes the valve body of the mechanical on-off valve device by moving the float continuously up and down Can be prevented.

Moreover, this invention is a flush toilet provided with the flush water tank apparatus by one Embodiment.
In this invention comprised in this way, wash water can be automatically supplied to a wash water tank at the time of a power failure.

  According to the cleaning water tank apparatus of the present invention, cleaning water can be automatically supplied to the cleaning water tank at the time of a power failure.

It is sectional drawing of the flush toilet to which the flush water tank apparatus by one Embodiment of this invention was applied. It is the perspective view which looked at the flush water tank apparatus by one Embodiment of this invention from the toilet back left diagonally upward. It is the side view which looked at the washing water tank device by one embodiment of the present invention from the left side. It is a top view which shows the state which has the water level of a wash water in a full water level in the wash water tank apparatus by one Embodiment of this invention. It is sectional drawing seen along the VV line of FIG. It is the enlarged view to which the water supply apparatus of the washing water tank apparatus by one Embodiment of this invention was expanded. It is the plane enlarged view to which the water supply apparatus of the washing water tank apparatus by one Embodiment of this invention was expanded. It is sectional drawing seen along the VIII-VIII line of FIG. It is a top view which shows the state in which the water level of the wash water is falling in the middle of drainage in the wash water tank apparatus by one Embodiment of this invention. It is sectional drawing seen along the XX line of FIG. It is the schematic (FIG.11 (a)) which shows the water stop state at the time of the non-power failure in the water supply apparatus of the wash water tank apparatus by one Embodiment of this invention, and the water supply apparatus of the wash water tank apparatus by one Embodiment of this invention It is the schematic (FIG.11 (b)) which shows the water supply state at the time of the non-power failure in FIG. 11, The schematic (FIG.11 (c) which shows the water supply state at the time of the power failure in the water supply apparatus of the washing water tank apparatus by one Embodiment of this invention )).

Next, a cleaning water tank apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, a flush toilet to which a flush water tank apparatus according to an embodiment of the present invention is applied will be described with reference to FIG.
FIG. 1 is a sectional view of a flush toilet to which a flush water tank apparatus according to an embodiment of the present invention is applied.

As shown in FIG. 1, reference numeral 1 denotes a flush toilet. The flush toilet 1 includes a toilet body 2, and the toilet body 2 includes a bowl portion 4, a water conduit 6, and a bowl portion 4. A drain trap pipe 8 communicating with the lower part is formed.
On the upper edge of the bowl portion 4 of the toilet body 2, there are formed a rim 10 overhanging on the inside and a first water discharge port 12 for discharging the wash water supplied from the water conduit 6. The wash water discharged from the water descends while swirling to wash the bowl portion.

Below the bowl portion 4, there is formed a water storage portion 14 whose storage surface W ₀ is indicated by a one-dot chain line. Below the water reservoir 14, an inlet 8a of the drain trap pipe 8 opens, and an ascending path 8b extends rearward from the inlet 8a. A descending path 8c continues to the ascending path 8b, and a lower end of the descending path 8c is connected to a discharge pipe (not shown) under the floor via a drain socket (not shown). In addition, a second water discharge port 16 for discharging the cleaning water supplied from the water conduit 6 is formed above the storage surface W ₀ of the bowl portion 4, and the cleaning water discharged from the second water discharge port 16 A swirling flow that swirls the water stored in the water storage section 14 in the vertical direction is generated.

  Above the water conduit 6 of the toilet body 2, there is provided a cleaning water tank device 18 for storing the cleaning water supplied to the toilet body 2, and the cleaning water stored in the cleaning water tank device 18 is supplied to the toilet body 2. It has come to be. The washing water tank device 18 is usually covered with an exterior cover 19, and it is difficult for the user to easily remove the exterior cover 19, so that the inside of the washing water tank device 18 cannot be seen unless the exterior cover 19 is removed. It has become. The washing water tank device 18 includes a washing water tank 20. A drainage port 22 extending in the vertical direction is formed at the bottom of the washing water tank 20, and a lower end of the drainage port 22 is a water conduit 6 of the toilet body 2. The washing water in the washing water tank 20 is supplied to the water conduit 6 of the toilet body 2 from the drain port 22.

Next, the details of the washing water tank apparatus 18 will be described with reference to FIGS.
FIG. 2 is a perspective view of a flush water tank apparatus according to an embodiment of the present invention as viewed from the upper left side of the toilet bowl, and FIG. 3 is a side view of the flush water tank apparatus according to an embodiment of the present invention as viewed from the left side. 4 is a plan view showing a state in which the water level of the cleaning water is at the full water level in the cleaning water tank apparatus according to the embodiment of the present invention, and FIG. 5 is a view taken along the line VV in FIG. FIG. In FIG. 5, the full water level when the wash water tank is full is indicated by WL1, the stop water level of the mechanical on-off valve device of the wash water tank is indicated by WL2, and the wash water overflows into the overflow pipe of the wash water tank. The water level to be used is indicated by WOF.

  As shown in FIGS. 2 to 5, in the cleaning water tank 20 of the cleaning water tank device 18, the drain port 22 is opened for the cleaning water stored in the cleaning water tank 20, and the water conduit 6 of the toilet body 2 is opened. A drain valve device 24 that flows out into the cleaning water tank, a float switch 26 that electrically detects the full water level WL1 of the cleaning water tank 20, and a water supply device 28 that supplies the cleaning water into the cleaning water tank 20 are provided.

The drain valve device 24 includes an overflow pipe 30, a drain valve 32 fixed to the lower end portion of the overflow pipe 30, and a rotating device 34 that opens and closes the drain valve 32 by moving the overflow pipe 30 up and down. .
A guide member 36 that guides the vertical movement of the drain valve 32 and regulates the height position is attached to the periphery of the drain port 22 of the cleaning water tank 20.

  The overflow pipe 30 is a cylindrical pipe member extending in the vertical direction. When the cleaning water level in the cleaning water tank 20 exceeds the full water level WL1 and further rises to the water level WOF and exceeds the height position of the upper end of the overflow pipe 30, the cleaning water overflows and the overflow pipe 30 From the upper end of the washing water tank 20, the water is supplied to the toilet body 2 side from the drain port 22 of the washing water tank 20 through the inside of the cylindrical tube.

Further, the rotating device 34 is a driving device provided with driving means such as a DC motor, and a ball chain 40 is attached to the tip of a rotating shaft 38 extending from the rotating device 34. The lower part of the ball chain 40 is attached to the overflow pipe 30. When the rotating shaft 34 is rotated so that the rotating device 34 pulls the ball chain 40 upward, the overflow pipe 30 rises together with the ball chain 40 and the rotating device 34 rotates the rotating shaft 38 so that the ball chain 40 is pulled down. If it does, the overflow pipe | tube 30 will descend | fall with the ball chain 40. FIG.
The rotation device 34 includes a manual operation mechanism that allows the user to directly rotate an operation lever (not shown) to rotate the rotating shaft 38 and open and close the drain valve 32 during a power failure. .

  The float switch 26 is disposed above the inside of the cleaning water tank 20 and is attached so that the axial center portion 26 a faces downward from the top of the cleaning water tank 20. The float switch 26 electrically detects a predetermined full water level WL1, and transmits a detection signal to a controller (not shown).

Next, a specific configuration of the water supply apparatus 28 according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 6 is an enlarged view of the water supply device of the cleaning water tank apparatus according to one embodiment of the present invention, and FIG. 7 is an enlarged plan view of the water supply device of the cleaning water tank apparatus according to one embodiment of the present invention. 8 is a cross-sectional view taken along line VIII-VIII in FIG.

As shown in FIGS. 6 to 8, the water supply device 28 includes a primary side water passage (water supply flow path) 42 connected to a water supply source (not shown) such as an external water supply from the upstream side, A pressure chamber 44 in which the pressure of the washing water fluctuates, an electromagnetic valve device 46 for switching between discharging and stopping water into the washing water tank 20 that is operated by electricity, and washing water that is mechanically operated without using electricity. Mechanical on-off valve device 48 for switching between water discharge and water stop into the wash water tank 20, the main valve body 50, a secondary water passage (water supply flow path) 52 extending inside the wash water tank 20, and a pressure chamber A first pilot hole 54 that opens the internal pressure of 44 to the secondary side water passage 52, a secondary side passage 56 that communicates the first pilot hole 54 and the secondary side water passage 52, and a pressure A second pilot hole for opening the internal pressure of the chamber 44 to the space in the wash water tank 20 8, a communication channel 60 that communicates the second pilot hole 58 and the pressure chamber 44, and a water supply port that supplies cleaning water from the secondary side water passage 52 to the inside of the cleaning water tank 20. 62. In addition, the water supply device 28 includes a controller (not shown) that is a control unit that controls opening and closing of the electromagnetic valve device 46 based on a detection signal detected by the float switch 26.
As schematically shown in FIG. 8, the mechanical on-off valve device 48, the second pilot hole 58, the water supply port 62, and the like are disposed inside the wash water tank 20, and are further illustrated in FIGS. 2 and 3. As shown, the electromagnetic valve device 46 and the first pilot hole 54 on which the electromagnetic valve body 64 is seated prevent the electronic components from being affected by the high humidity air in the cleaning water tank 20. It is arranged outside the washing water tank 20.
The second pilot hole 58 is formed in the water supply device 28 such that its own hole opens into the internal space of the cleaning water tank 20, and is between the second pilot hole 58 and the pressure chamber 44. The communication channel 60 is formed to connect these, and the communication channel 60 has an enlarged diameter portion 60 a having an inner diameter larger than that of the second pilot hole 58. Even when the communication channel 60 is formed over a relatively long distance from the pressure chamber 44 to the internal space of the cleaning water tank 20, the cleaning water passing through the communication channel 60 is subjected to pressure loss by the enlarged diameter portion 60a. Can be suppressed. The enlarged diameter portion 60a of the communication flow path 60 is formed to have a flow path inner diameter sufficient to prevent the passing wash water from passing through due to pressure loss.

The solenoid valve device 46 biases the solenoid valve valve body 64, the plunger 66 connected to the solenoid valve valve body 64, and the solenoid valve valve body 64 and the plunger 66 so as to close the solenoid valve device 46 when not energized. The spring 68 is provided. When energized by a control signal from a controller (not shown), the solenoid valve device 46 is configured so that the spring 68 contracts and moves the solenoid valve valve body 64 and the plunger 66 so as to open the solenoid valve device 46. . When the float switch 26 does not electrically detect the full water level WL1 of the wash water tank 20, the solenoid valve device 46 is opened and the float switch 26 is full of the wash water tank 20. When the water level WL1 is electrically detected, the electromagnetic valve device 46 is closed.
The electromagnetic valve body 64 of the electromagnetic valve device 46 is seated on the first pilot hole 54 so that the first pilot hole 54 can be closed, and the first pilot hole 54 is opened and closed. By doing so, the main valve body 50 can be opened and closed as will be described later, and the secondary side water passage 52 can be opened and closed.
Thus, since the washing water tank device 18 according to one embodiment of the present invention includes the electromagnetic valve device 46, the controller can control the electromagnetic valve device 46 during electrical energization, and can be electrically controlled. It is less susceptible to the influence of water pressure, and has advantages such as a time-saving control that can be combined with ON / OFF of the float switch, and a water-saving effect.

The mechanical on-off valve device 48 forms a so-called ball tap valve device, sits on the second pilot hole 58, and can close the second pilot hole 58, and the cleaning water tank 20 A float 72 that moves up and down in response to fluctuations in the water level of the washing water, one is connected to the float 72, and the other is connected to the valve body 70. The float 72 moves up and down to swing and cause the valve body 70 to move. And a swinging member 74 that is mechanically opened and closed.
The valve body 70 of the mechanical on-off valve device 48 can open and close the secondary water passage 52 by opening and closing the second pilot hole 58 to open and close the main valve body 50 as will be described later. it can.
The swing member 74 forms a float support arm portion 76 that supports the float 72 while allowing its height to be adjusted, and a base portion of the float support arm portion 76, and operates in conjunction with the upward and downward movement of the float support arm portion 76. And a valve body attaching portion 78 for attaching the body 70 so that the body 70 can be opened and closed. Specifically, when the float support arm portion 76 moves upward, the valve body mounting portion 78 moves downward to press the valve body 70 against the second pilot hole portion 58 to close it, and the float support arm portion 76 moves downward. When moving, the valve body attaching portion 78 moves upward so that the valve body 70 is separated from the second pilot hole 58 and opened.

The main valve body 50 forms a so-called diaphragm valve, and a valve seat 80 provided at an inlet end of a secondary side water passage (water supply passage) 52 and a secondary side water passage that is seated on the valve seat 80. A main valve body 82 that switches between a water stop state (valve closed state) that closes the valve 52 and a water supply state (valve open state) that is spaced from the valve seat 80 and opens the secondary side water passage 52. A bleed hole 84 for communicating the primary side water passage 42 and the pressure chamber 44 is formed in a part of the valve body 50.
Further, the main valve body 50 has a first pilot hole 54 formed on the pressure chamber 44 side along the central axis thereof, and communicates from the first pilot hole 54 to the secondary side water passage 52. The secondary side flow path 56 is formed inside.
The main valve body 82 comes into contact with the valve seat 80 at the inlet end of the secondary water passage 52 or from the valve seat 80 due to a pressure difference between the internal pressure of the pressure chamber 44 and the water pressure of the primary water passage 42. It is installed to move in the direction of separation. When the main valve body 82 is closed by the bleed hole 84 formed in the main valve body portion 50, the primary side water passage 42 and the pressure chamber 44 communicate with each other, and the pressure chamber 44 is connected to the primary side water passage 42. The water pressure is activated.

  As shown in FIG. 5, the float 72 of the mechanical on-off valve device 48 is disposed at a position lower than the float switch 26. When the flush water tank 20 reaches the full water level WL1, the lower surface of the float 72 is filled with water. The water level WL1 is in the water, and the lower part of the float 72 is sufficiently submerged with respect to the full water level WL1 so that the fine movement is not repeated due to the fluctuation of the water surface. In other words, when the float 72 is at the full water level, the float 72 is arranged such that the rise is stopped at a position lower than the full water level so that the lower surface does not interlock with fluctuation of the water surface.

Next, with reference to FIGS. 5 to 11, the operation of the cleaning water tank apparatus according to the embodiment of the present invention will be described.
Here, FIG. 9 is a plan view showing a state in which the water level of the washing water is lowered during the drainage in the washing water tank apparatus according to the embodiment of the present invention, and FIG. 10 is along the line XX in FIG. FIG. 11 is a schematic view (FIG. 11 (a)) showing a water stop state at the time of non-power failure in the water supply device of the cleaning water tank device according to one embodiment of the present invention. It is the schematic (FIG.11 (b)) which shows the water supply state at the time of the non-power failure in the water supply apparatus of the wash water tank apparatus by one Embodiment, At the time of the power failure in the water supply apparatus of the wash water tank apparatus by one Embodiment of this invention It is the schematic (FIG.11 (c)) which shows the water supply state of this. Here, in FIG. 10, the water level that is decreasing during the drainage of the wash water tank is indicated by WL 3, and in FIG. 11, the flow of the wash water in the primary side water passage 42 and the secondary side water passage 52 is indicated by an arrow. Is shown schematically.

First, the operation at the time of non-power failure of the washing water tank apparatus according to one embodiment of the present invention will be described.
In the water supply device 28, the state before the water supply device 28 supplies water into the washing water tank 20 is such that the electromagnetic valve device 46, the mechanical on-off valve device 48, and the main valve body 50 are closed, and the primary side water passageway. 42 and the pressure chamber 44 are filled with water from an external water supply or the like, and are stopped at a predetermined primary water pressure. When the solenoid valve device 46 is closed, the solenoid valve body 64 is in a state where the first pilot hole 54 is closed, and when the mechanical on-off valve device 48 is closed, the valve body 70 is When the second pilot hole 58 is closed and the main valve body 50 is closed, the main valve body 82 is closing the valve seat 80.
The washing water tank 20 is filled with washing water up to the full water level WL1. In this state, after using the toilet, for example, when the user presses an operation button (not shown) for large washing, a signal from the operation button (not shown) is transmitted to the controller (not shown), The rotation device 34 is driven. Then, the rotating shaft 38 rotates, the ball chain 40 attached to the tip of the rotating shaft 38 is pulled upward, the overflow pipe 30 and the drain valve 32 rise integrally, the drain port 22 is opened, and the cleaning is performed. Wash water in the water tank 20 is supplied from the drain port 22 to the water conduit 6 of the toilet body 2.

When the wash water is supplied to the toilet body 2, the water level in the wash water tank 20 is lowered below the float switch 26, whereby the float switch 26 is changed from ON to OFF.
Further, when the water level in the washing water tank 20 starts to decrease from the lower surface of the float 72, the float 72 automatically follows and starts to descend, and the float support arm portion 76 of the swinging member 74 descends. By the swinging motion of the swinging member 74 that moves, the valve body attaching portion 78 rises, and the valve body 70 of the mechanical on-off valve device 48 is separated from the second pilot hole portion 58. When the valve body 70 is separated from the second pilot hole 58, the cleaning water in the pressure chamber 44 passes through the second pilot hole 58 from the enlarged diameter portion 60 a of the communication flow path 60 and the inside of the cleaning water tank 20. As the water starts to flow out toward the space and the water pressure of the washing water in the pressure chamber 44 decreases, the main valve element 82 is separated from the valve seat 80 by the water pressure from the primary side water passage 42, and from the primary side water passage 42. The washing water flows directly into the secondary side water passage 52.
In addition, after a predetermined time has elapsed after the float switch 26 has changed from ON to OFF, a controller (not shown) operates the solenoid valve device 46 by electricity, and the direction in which the spring 68 contracts the plunger 66 and the solenoid valve valve body 64. Move it in the direction that opens the solenoid valve. When the solenoid valve body 64 is separated from the first pilot hole 54, the cleaning water in the pressure chamber 44 flows into the first pilot hole 54, passes through the secondary flow path 56, and the secondary water flow path. The main valve element 82 is separated from the valve seat 80 by the water pressure from the primary side water passage 42, and the washing water from the primary side water passage 42 is started. Directly flows into the secondary water passage 52.
That is, at the time of no power failure, the electromagnetic valve device 46 and the mechanical on-off valve device 48 operate independently and in parallel to operate the common main valve element 82. Accordingly, both the first pilot hole portion 54 and the second pilot hole portion 58 are opened, and the washing water flows out from both at the same time. By these operations, communication between the primary side water passage 42 and the secondary side water passage 52 is opened, and water is supplied from the water supply port 62 in the cleaning water tank 20 (water supply state).
Even when one of the solenoid valve device 46 and the mechanical on-off valve device 48 does not operate due to a failure or the like, at least one of them communicates with the primary side water passage 42 and the secondary side water passage 52. Therefore, water supply from the water supply port 62 in the cleaning water tank 20 is performed stably.

Next, the rotation device 34 is operated by the user's operation or the judgment of a controller (not shown), the rotation shaft 38 is rotated, and the ball chain 40 attached to the tip of the rotation shaft 38 is downward. The overflow pipe 30 and the drain valve 32 are integrally lowered, the drain port 22 is closed, and the water supplied to the wash water tank 20 is stored in the wash water tank 20.
When the water level in the washing water tank 20 reaches the mechanical valve body water stop water level WL2, the float 72 starts to rise, and the float support arm portion 76 of the rocking member 74 rises, and the rock that moves like this. By the swinging motion of the moving member 74, the valve body attaching portion 78 is lowered, and the mechanical on-off valve body 70 is in a state where the second pilot hole portion 58 is closed. In this case, even if the valve body 70 is in a state where the second pilot hole 58 is closed, the electromagnetic valve body 64 is separated from the first pilot hole 54 and the water pressure of the washing water in the pressure chamber 44 is increased. Therefore, the main valve body 82 is separated from the valve seat 80 by the water pressure from the primary side water passage 42, and the wash water from the primary side water passage 42 flows directly into the secondary side water passage 52. doing.
When the water level in the wash water tank 20 further rises and reaches the full water level WL1, the float switch 26 is turned on, and a controller (not shown) detects this, and the controller (not shown) detects the electromagnetic valve device 46. And the plunger 66 and the solenoid valve valve body 64 are moved in the direction in which the spring 68 extends (the direction in which the solenoid valve valve body 64 is closed). When the solenoid valve body 64 closes the first pilot hole 54, the first pilot hole 54 and the second pilot hole 58 communicating with the pressure chamber 44 are both closed, and the pressure chamber 44 has a closed state. Since the water pressure of the washing water rises by receiving the water pressure of the primary side water passage 42, the main valve body 82 is pressed against the valve seat 80 by the water pressure from the primary side water passage 42, and the main valve body 82 is closed. Thus, the wash water does not flow from the primary side water passage 42 to the secondary side water passage 52, the water supply to the water supply port 62 in the wash water tank 20 is stopped, and the wash water is filled in the wash water tank 20 A series of cleaning operations are completed.

First, the operation at the time of power failure of the cleaning water tank apparatus 18 according to one embodiment of the present invention will be described.
In the water supply device 28, the state before the water supply device 28 supplies water into the washing water tank 20 is such that the electromagnetic valve device 46, the mechanical on-off valve device 48, and the main valve body 50 are closed, and the primary side water passageway. 42 and the pressure chamber 44 are filled with water from an external water supply or the like, and are stopped at a predetermined primary water pressure. At the time of a power failure, the state where the spring 68 of the electromagnetic valve device 46 presses the electromagnetic valve body 64 against the first pilot hole 54 and is closed is maintained.
The washing water tank 20 is filled with washing water up to the full water level WL1. At the time of a power failure, from this state, the user manually operates the operation member (not shown) at the time of a power failure to manually operate the rotating device 34 after the use of the toilet, the rotating shaft 38 rotates, and the tip of the rotating shaft 38 is rotated. The attached ball chain 40 is pulled upward, the overflow pipe 30 and the drain valve 32 are integrally raised, the drain port 22 is opened, and the wash water in the wash water tank 20 is discharged from the drain port 22 to the toilet body 2. To the water conduit 6.

When the flush water is supplied to the toilet body 2, the water level in the flush water tank 20 is lowered from the float switch 26, so that the float switch 26 is changed from ON to OFF. The float switch 26 cannot electrically detect ON / OFF.
Further, when the water level in the washing water tank 20 starts to decrease from the lower surface of the float 72, the float 72 automatically follows and starts to descend, and the float support arm portion 76 of the swinging member 74 descends. Due to the swinging motion of the swinging member 74 that moves, the valve body mounting portion 78 rises, and the valve body 70 of the mechanical on-off valve device 48 is automatically and mechanically controlled by the second pilot hole regardless of the user's operation. Separated from the portion 58. When the valve body 70 is separated from the second pilot hole 58, the washing water in the pressure chamber 44 starts to flow out from the enlarged diameter portion 60a of the communication channel 60 through the second pilot hole 58, and the pressure chamber Since the water pressure of the wash water in 44 decreases, the main valve element 82 is separated from the valve seat 80 by the water pressure from the primary side water passage 42, and the wash water from the primary side water passage 42 directly enters the secondary side water passage 52. Inflow. By this operation, the primary side water passage 42 and the secondary side water passage 52 are brought into communication, and water is supplied to the water supply port portion 62 in the cleaning water tank 20. The cleaning water flowing out from the second pilot hole 58 flows into the cleaning water tank 20. At the time of a power failure, since the water is drained by a user's manual operation, the amount of drainage varies, but the water level in the middle of draining in this way is, for example, the water level WL3.
As described above, even when the electromagnetic valve device 46 does not operate due to power supply interruption due to a power failure or the like, the valve body 70 of the mechanical on-off valve device 48 is connected to the primary side water passage 42 and the secondary side water passage 52. Are automatically connected to each other, so that water is stably supplied from the water supply port 62 in the cleaning water tank 20.

Next, by the user's manual operation, the rotating device 34 is operated, the rotating shaft 38 rotates, the ball chain 40 attached to the tip of the rotating shaft 38 is pulled down, the overflow pipe 30 and the drainage. The valve 32 is integrally lowered, the drain port 22 is closed, the water supplied to the washing water tank 20 is stored in the washing water tank 20, and the water level rises again.
When the water level in the washing water tank 20 reaches the mechanical valve body water stop water level WL2, the float 72 starts to rise, and the float support arm portion 76 of the rocking member 74 rises, and the rock that moves like this. By the swinging motion of the moving member 74, the valve body attaching portion 78 is lowered, and the mechanical on-off valve body 70 is in a state where the second pilot hole portion 58 is closed. In this case, when the valve body 70 is in a state in which the second pilot hole portion 58 is closed, the electromagnetic valve valve body 64 is maintained in a state in which the first pilot hole portion 54 is closed. In response to the water pressure of the wash water from the primary side water passage 42, the water pressure of the wash water inside the pressure chamber 44 rises, and the main valve element 82 is pressed against the valve seat 80 by the water pressure from the primary side water passage 42. The communication between the primary-side water passage 42 and the secondary-side water passage 52 is closed, the water supply to the water supply port 62 in the washing water tank 20 is stopped, and a series of washing operations is completed.
Therefore, at the time of a power failure, the water level in a state where the wash water is stored in the wash water tank 20 is the mechanical valve body water stop water level WL2, which is a water level position lower than the full water level WL1.
When the user uses the toilet at the time of a power failure, the washing water is automatically stored up to the mechanical valve body water stop level WL2 every time the user does not perform the water supply operation. Furthermore, even if the amount of drainage manually operated by the user varies from time to time, a certain amount of water can be automatically stored in the wash water tank.

Next, the effect of the washing water tank apparatus according to the embodiment of the present invention described above will be described.
According to the washing water tank device 18 according to the above-described embodiment of the present invention, when the electromagnetic valve device 46 and the mechanical on-off valve device 48 open at least the secondary side water passage 52, at least one of them. Since water is supplied to the water supply port 62 in the washing water tank 20, even when the electromagnetic valve device 46 is closed and does not operate in the event of a power failure, the mechanical on-off valve device 48 can be used as a float for the mechanical on-off valve device 48. 72 moves up and down according to the fluctuation of the level of the cleaning water in the cleaning water tank 20, so that the swinging member 74 swings, and the valve body 70 opens and closes the second pilot hole 58, thereby The body part 50 can be opened and closed to open and close the secondary side water passage 52. When the mechanical on-off valve device 48 opens the secondary side water passage 52, the water supply port 62 in the cleaning water tank 20 is provided. Water is supplied to
Accordingly, the washing water can be supplied to the washing water tank 20 by the electromagnetic valve device 46 and the mechanical opening / closing valve device 48 when there is no power failure, and the washing water is automatically supplied to the washing water tank 20 by the mechanical opening / closing valve device 48 even during a power failure. The flush water supplied to the toilet main body 2 can be stored in the flush water tank 20 and the toilet main body 2 can be washed even during a power failure.
For example, since the mechanical on-off valve device 48 can mechanically open and close the secondary side water passage 52 at the time of a power failure, there is no need for a sub power source such as a dry battery for electrically operating the solenoid valve device 46 at the time of a power failure. Therefore, the maintenance of the sub power source such as a dry battery can be eliminated, and further, the number of times of use of the washing water tank 20 at the time of a power failure is not limited.
For example, in the event of a power outage, the mechanical on-off valve device 48 causes the swing member 74 to move up and down as the float 72 of the mechanical on-off valve device 48 moves up and down in response to fluctuations in the level of the wash water in the wash water tank 20. By swinging, the valve body 70 opens and closes the second pilot hole 58, whereby the main valve body portion 50 can be opened and closed, and the secondary side water passage 52 can be opened and closed. The side water passage 52 can be opened and closed mechanically, and water supply to the water supply port 62 in the wash water tank 20 is automatically performed without requiring a user's water supply operation, so the user's water supply operation is omitted. Thus, the user's operation can be simplified. Further, since there is no variation in the amount of water supplied by the user performing a water supply operation, the amount of cleaning water supplied to the cleaning water tank 20 can be kept constant even during a power failure.
In the cleaning water tank device 18 according to the above-described embodiment of the present invention, the cleaning water can be supplied to the cleaning water tank 20 by the electromagnetic valve device 46 and the mechanical on-off valve device 48 when there is no power failure, and the power failure occurs. In such a case, the cleaning water can be automatically supplied to the cleaning water tank 20 by the mechanical on-off valve device 48. Even when a power failure occurs, the cleaning water supplied to the toilet body 2 is stored in the cleaning water tank 20, and the toilet body 2 is Although it has been described that the cleaning can be performed, the cleaning water tank apparatus 18 according to the embodiment of the present invention can be implemented in other cases as well. For example, even when the power outage state lasts for a long time due to some cause in the infrastructure or the like, or when the washing water tank device 18 is installed in a non-energized state in a non-energized site where no electricity is supplied from an external power source According to the washing water tank device 18, the washing water can be automatically supplied and stopped to the washing water tank 20 by the mechanical on-off valve device 48 in the non-energized state, and supplied to the toilet body 2 in the non-energized state. Wash water is stored in the wash water tank 20 and the toilet body 2 can be washed.

Furthermore, according to the cleaning water tank device 18 according to the embodiment, the electromagnetic valve body 64 of the electromagnetic valve device 46 can open and close the first pilot hole 54 and the valve of the mechanical on-off valve device 48. The body 70 can open and close the second pilot hole 58, and when the first pilot hole 54 and the second pilot hole 58 are closed, the pressure inside the pressure chamber 44 is reduced. The main valve body 82 is moved toward the valve seat 80 and is seated on the valve seat 80 so that the secondary water passage 52 is closed, and the first pilot hole portion 54 and the second pilot hole portion 54 are When at least one of the pilot holes 58 is open, the pressure inside the pressure chamber 44 decreases, and the main valve body 82 is moved away from the valve seat 80 to move to the secondary side water passage. The water supply state in which 52 is opened can be set.
As described above, since both the electromagnetic valve device 46 and the mechanical on-off valve device 48 can open and close the secondary side water passage 52 by the common main valve element 82, the primary side water passage 42 and the secondary side water passage 52 are opened. There is no need to branch to attach each of the electromagnetic valve device 46 and the mechanical on-off valve device 48, and the primary side water passage 42 and the secondary side water passage 52 can be simplified.
Therefore, since it becomes possible to supply cleaning water to the cleaning water tank 20 through the same secondary side water passage 52 regardless of power outage or non-power outage, the water supply port at the time of power outage and at the time of no power outage Variations in the water supply speed when water is supplied from the unit 62 to the cleaning water tank 20 can be suppressed.

  Further, according to the cleaning water tank apparatus 18 according to the embodiment, the electromagnetic valve apparatus 46 is disposed outside the cleaning water tank 20, so that the electromagnetic valve apparatus 46 breaks down due to wet air inside the cleaning water tank 20. Can be prevented.

  Further, according to the cleaning water tank device 18 according to the embodiment, since the enlarged diameter portion 60a is formed in the communication flow path 60, even when the distance of the communication flow path 60 is relatively long, in the communication flow path 60. Pressure loss can be suppressed. Therefore, when the mechanical on-off valve device 48 opens the second pilot hole 58, the pressure loss in the communication flow path 60 is increased, and the pressure in the pressure chamber 44 is released from the second pilot hole 58. Accordingly, it is possible to prevent a problem that the main valve body 82 is not separated from the valve seat 80 and water supply to the cleaning water tank 20 cannot be performed.

  Further, according to the cleaning water tank device 18 according to one embodiment, the float 72 of the mechanical on-off valve device 48 is disposed at a position lower than the float switch 26, and when the cleaning water tank 20 is at a full water level, Since the lower surface of the raised float 72 enters the water with respect to its full water level, the float 72 is prevented from being slightly moved by fluctuations in the water surface, and the float 72 continuously moves up and down to mechanically open and close the valve. Hunting that continuously opens and closes the valve body 70 of the device 48 can be prevented.

  Moreover, according to the flush toilet 1 provided with the washing water tank apparatus 18 by one Embodiment, a washing water can be automatically supplied to the washing water tank 20 at the time of a power failure.

A cleaning water tank apparatus according to another embodiment of the present invention will be described. In another embodiment, only the structure in which the main valve body portion opens and closes the secondary side water passage via the pressure chamber in the water supply device of the cleaning water tank device according to one embodiment of the present invention is the water supply of the cleaning water tank device. The example which changed into the structure which the solenoid valve apparatus and mechanical on-off valve apparatus in an apparatus each open and close a secondary side water passage directly is shown.
Since the structure of each component of the cleaning water tank apparatus according to the other embodiment is substantially the same as that of the cleaning water tank apparatus according to the above-described embodiment, the parts different from the above-described one embodiment of the other embodiments are here. Etc. will be explained.

In another embodiment of the present invention, the water supply device is operated by electricity from a primary side water passage (water supply passage) connected to a water supply source (not shown) such as an external water supply from the upstream side. Solenoid valve device that switches between water discharge and stop water in the wash water tank, mechanical on-off valve device that switches water discharge and water stop into the wash water tank that is mechanically operated without using electricity A secondary side water passage (water supply passage) extending inside the wash water tank, and a water supply port for supplying the wash water from the secondary side water passage to the inside of the wash water tank. The chamber, the main valve body, the first pilot hole, the second pilot hole, and the like are omitted.
In such a water supply device, the solenoid valve body of the solenoid valve device is arranged so as to directly open and close the secondary side water passage, and the valve body of the mechanical on-off valve device directly opens and closes the secondary side water passage. The solenoid valve device can directly open and close the water flow from the primary side water passage to the secondary side water passage, and the mechanical on-off valve device can be connected from the primary side water passage to the secondary side water passage. It is comprised so that opening and closing of water flow can be performed directly. For example, a part of a primary side water passage or a secondary side water passage is branched into two parallel water passages, an electromagnetic valve device is attached to one branch water passage, and a mechanical on-off valve is installed in the other branch water passage May have equipment installed.
Therefore, at the time of power failure and non-power failure, when the solenoid valve device and the mechanical on-off valve device open at least one of the secondary side water passage from the primary side water passage, the water supply in the washing water tank Water is supplied to the mouth.

Next, the effect of the washing water tank apparatus according to another embodiment of the present invention described above will be described.
According to the washing water tank device according to another embodiment of the present invention described above, the washing water tank is used when the solenoid valve device and the mechanical on-off valve device open at least the secondary side water passage. Since it is attached to the secondary water passage so that water is supplied to the water inlet, the mechanical on-off valve device is mechanical even when the solenoid valve device is closed and does not operate during a power failure. As the float of the on-off valve device moves up and down in response to fluctuations in the wash water level in the wash water tank, the swinging member swings, and the valve body can directly open and close the secondary side water passage. When the open / close valve device opens the secondary water passage, water is supplied to the water supply port in the wash water tank.
Therefore, the cleaning water can be supplied to the cleaning water tank by the electromagnetic valve device and the mechanical on-off valve device when there is no power failure, and the cleaning water can be automatically supplied to the cleaning water tank by the mechanical on-off valve device even at the time of power failure. The wash water supplied to the toilet body can be stored in the wash water tank and the toilet body can be washed even during a power failure.
For example, since a mechanical on-off valve device can mechanically open and close the secondary side water passage at the time of a power failure, a sub power source such as a dry battery for operating the electromagnetic valve device electrically at the time of a power failure is unnecessary. Maintenance of the sub power source such as a dry battery can be eliminated, and the number of times of use of the washing water tank at the time of a power failure is not limited.
For example, in the event of a power failure, the mechanical on-off valve device swings when the float of the mechanical on-off valve device moves up and down in response to fluctuations in the level of the wash water in the wash water tank, The body can directly open and close the secondary side water passage, the valve body can mechanically open and close the secondary side water passage, and the water supply to the water supply port in the wash water tank requires a separate water supply operation by the user Since it is automatically performed without the user, the user's water supply operation can be omitted, and the user's operation can be simplified. In addition, since there is no variation in the amount of water supplied by the user performing a water supply operation, the amount of cleaning water supplied to the cleaning water tank can be kept constant even during a power failure.

DESCRIPTION OF SYMBOLS 1 Flush toilet 2 Toilet body 4 Bowl part 6 Water conduit 8 Drain trap pipe 10 Rim 18 Wash water tank device 20 Wash water tank 24 Drain valve device 26 Float switch 28 Water supply device 30 Overflow pipe 42 Primary side water passage 44 Pressure chamber 46 Solenoid valve device 48 Mechanical on-off valve device 50 Main valve body portion 52 Secondary side water passage 54 First pilot hole portion 56 Secondary side flow passage 58 Second pilot hole portion 60a Diameter expansion portion 60 Communication flow passage 62 Water supply port 64 Solenoid valve valve body 70 Valve body 72 Float 74 Swing member 80 Valve seat 82 Main valve body WL1 Full water level WL2 Mechanical valve body water stop water level

Claims (3)

A cleaning water tank device that can store cleaning water in the event of a power failure, and stores cleaning water to be supplied to the toilet;
A water supply channel for supplying cleaning water from a water supply source to a water supply port in the cleaning water tank;
A valve seat provided in the water supply flow path;
A main valve body that switches between a water stop state that sits on the valve seat and closes the water supply channel, and a water supply state that opens from the valve seat and opens the water supply channel;
A pressure chamber that moves the main valve body toward the valve seat when the internal pressure rises, and moves the main valve body away from the valve seat when the internal pressure drops;
A first pilot hole for releasing the pressure in the pressure chamber;
A second pilot hole for releasing the pressure in the pressure chamber;
A communication channel that communicates the pressure chamber and the second pilot hole;
An electrically operated on-off valve device for electrically opening and closing the water supply flow path;
A mechanical on-off valve device that mechanically opens and closes the water supply flow path,
In the case where at least one of the electric on-off valve device and the mechanical on-off valve device opens the water supply passage, water is supplied to the water supply port in the wash water tank. Attached to the water supply channel,
The electric on - off valve device can open and close the first pilot hole, and the mechanical on-off valve device can open and close the second pilot hole.
Said mechanical valve means and said second pilot hole with is located within the flushing water tank, the electric valve means and the first pilot hole is arranged outside of the cleaning water tank And
The mechanical on-off valve device is
A valve body for opening and closing the water supply channel;
A float that moves up and down in response to fluctuations in the level of the wash water in the wash water tank;
A swing member that is connected to the float, the other is connected to the valve body, swings when the float moves up and down, and mechanically opens and closes the valve body,
The communication water channel device is a flush water tank device having an enlarged diameter portion having an inner diameter larger than that of the second pilot hole. A float switch for electrically detecting the full water level of the washing water tank;
The float of the mechanical valve means is disposed at a position lower than the float switch, wherein when the cleaning-water tank is filled with water the water level, the water relative elevated underside thereof full water level of the float The cleaning water tank apparatus according to claim 1, wherein the cleaning water tank apparatus is in an entered state.   A flush toilet provided with the flush water tank apparatus according to claim 1.

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