JP7215143B2 - Cleaning water tank device - Google Patents

Description

The disclosed embodiments relate to wash water tank arrangements.

2. Description of the Related Art Conventionally, there has been known a washing water tank device that is compatible with both manual washing operation and automatic washing operation.

For example, Patent Literature 1 discloses a washing water tank device in which a manual chain and an electric chain are connected to a flap-type drain valve body. According to this washing water tank device, when the washing operation is performed manually, the manual chain is pulled up, and when the washing operation is performed electrically, the electric chain is pulled up. The valve body can be pulled up to initiate the cleaning action.

U.S. Patent Application Publication No. 2008/0072369

However, when the above-described prior art is applied to a washing water tank device equipped with a direct-acting drain valve that opens and closes the drain port by vertical movement, one of the manual chain and the electric chain is It may interfere with the chain. Also, the manual chain or the electric chain may interfere with the guide portion that guides the vertical movement of the drain valve body. If such interference occurs, there is a risk that the cleaning operation will not be performed normally.

One aspect of the embodiments has been made in view of the above, and is a washing water tank apparatus capable of appropriately performing washing operations while supporting both manual washing operations and automatic washing operations. intended to provide

A flush water tank device according to an aspect of an embodiment is disposed inside a flush water tank that stores flush water to be supplied to a toilet, and includes a drain valve body that opens and closes a drain port of the flush water tank, and the drain valve. A drain valve device comprising a tubular guide part for guiding vertical movement of the body and at least one opening provided on a side surface of the guide part, and a lower end connected to a connected part provided on the drain valve body. An elongated manual connection part having an upper end connected to the manual pulling part, and an elongated electric connection part having a lower end connected to the connected part and an upper end connected to the electric pulling part, A portion of the manual connecting portion is covered by the first cylindrical member, and a portion of the electric connecting portion is covered by the second cylindrical member.

By covering the manual connecting portion and the electric connecting portion with the first cylindrical member and the second cylindrical member, respectively, it is possible to suppress the loosening of the manual connecting portion and the electric connecting portion. As a result, the manual connection portion and the electric connection portion are less likely to get entangled and enter the opening of the guide portion, that is, interference between the manual connection portion and the electric connection portion is less likely to occur. Therefore, it is possible to appropriately perform the cleaning operation while supporting both the manual cleaning operation and the automatic cleaning operation.

An upper end of at least one of the first cylindrical member and the second cylindrical member may be positioned above an upper end of the guide portion. Since this makes it difficult for the first cylindrical member or the second cylindrical member to enter the opening formed in the guide portion, interference between the manual connecting portion or the electric connecting portion and the opening can be suppressed.

A length of one of the first cylindrical member and the second cylindrical member may be longer than the vertical width of the opening. By configuring in this way, it is possible to more reliably prevent the first cylinder member or the second cylinder member from entering the opening formed in the guide portion.

A lower end of one of the first cylindrical member and the second cylindrical member may be positioned above a dead water level in the wash water tank. As a result, fluctuations in the dead water level can be suppressed.

A lower end of one of the first cylindrical member and the second cylindrical member is located at one of the manual connecting portion and the electric connecting portion where one of the first cylindrical member and the second cylindrical member is provided. It may be in contact with a lower end side connecting member connected to the connected portion. A lower end of the other of the first cylindrical member and the second cylindrical member may be positioned above a lower end of one of the first cylindrical member and the second cylindrical member. By configuring in this way, interference between the first cylindrical member and the second cylindrical member can be suppressed.

A flushing water tank device according to an aspect of an embodiment includes a first contact member fixed to the manual connection portion and contacting an upper end of the first cylindrical member when the first cylindrical member moves upward. and a second abutting member fixed to the electric connecting portion and abutting against the upper end of the second tubular member when the second tubular member moves upward. As a result, it is possible to prevent the manual connection portion and the electric connection portion from being exposed due to upward movement of the first cylindrical member and the second cylindrical member due to buoyancy.

According to one aspect of the embodiment, it is possible to appropriately perform the cleaning operation while supporting both the manual cleaning operation and the automatic cleaning operation.

FIG. 1 is an overall perspective view showing an example of the configuration of a flush toilet device. FIG. 2 is a schematic diagram showing an example of the internal configuration of the washing water tank device. FIG. 3 is a cross-sectional view of the drain valve device. FIG. 4 is a cross-sectional view showing an enlarged periphery of a connected portion of the drain valve body.

Hereinafter, embodiments of the flush water tank apparatus disclosed in the present application will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by embodiment shown below.

<1. Overall Configuration of Flush Toilet Device>
First, the overall configuration of a flush toilet device including a flush water tank device according to this embodiment will be described with reference to FIG. FIG. 1 is an overall perspective view showing an example of the configuration of a flush toilet device.

In this specification, the vertically upward direction is described as "upper", and the vertically downward direction is described as "downward". Also, the front side of the toilet bowl 2 is described as "front", the back side as "rear", the right side as "right side", and the left side as "left side" as viewed from the user facing the toilet bowl 2.

As shown in FIG. 1 , the flush toilet device 1 includes a toilet bowl 2 and a flush water tank device 3 . The toilet bowl 2 is, for example, a Western-style toilet bowl made of ceramic, and includes a bowl portion 21 and a drain trap pipe line 22 communicating with the lower portion of the bowl portion 21 . The bowl portion 21 is formed with a spout 23 for spouting cleansing water supplied from a water conduit (not shown) formed inside the toilet bowl 2, and the spouting cleansing water spouted from the spout 23 swirls. The bowl portion 21 is washed by descending while moving. The drainage trap pipe 22 is provided with an opening at one end below the surface W0 of the wash water stored in the bowl portion 21, and the opening at the other end is connected via a drainage socket (not shown). connected to an underfloor discharge pipe (not shown).

The flush water tank device 3 is arranged on the rear upper surface of the toilet bowl 2 and stores flush water to be supplied to the toilet bowl 2 . The flush water tank device 3 may be formed integrally with the toilet bowl 2 (a so-called one-piece type).

<2. Internal Configuration of Cleaning Water Tank Device>
Next, the internal configuration of the wash water tank device 3 will be described with reference to FIG. FIG. 2 is a schematic diagram showing an example of the internal configuration of the washing water tank device 3. As shown in FIG.

As shown in FIG. 2 , the wash water tank device 3 includes a wash water tank 30 whose top is open, and an upper lid 35 installed on the top of the wash water tank 30 .

A drain port 32 communicating with a water conduit (not shown) of the flush water tank device 3 is formed in the bottom portion 31 of the flush water tank 30, and the flush water in the flush water tank device 3 flows from the drain port 32 to the toilet bowl 2. to a water conduit (not shown).

The wash water tank device 3 includes a water supply device 4 and a drain valve device 5 inside the wash water tank 30 .

The water supply device 4 is a device for supplying washing water to the inside of the washing water tank device 3 . Specifically, the water supply device 4 includes a water supply pipe 41 connected to an external water supply source (not shown), and a water supply pipe 41 attached to the upper end of the water supply pipe 41 to discharge washing water supplied from the water supply pipe 41. and a float 43 for switching between water discharge and water stop by the water supply valve 42 by moving up and down according to fluctuations in the water level in the washing water tank device 3.

When the flush water in the flush water tank device 3 is discharged to the toilet bowl 2, the water level of the flush water drops, and the float 43 descends accordingly, thereby opening the water supply valve . As a result, water supply from the water supply device 4 to the washing water tank device 3 is started. On the other hand, when the water level in the washing water tank device 3 rises due to the water supply from the water supply device 4, the water supply valve 42 is closed by the float 43 rising as the water level rises. As a result, the water supply from the water supply device 4 to the washing water tank device 3 is stopped.

The drain valve device 5 is provided above the drain port 32 and opens or closes the drain port 32 to start or stop draining water from the flush water tank device 3 to the toilet bowl 2 . An example of the configuration of such a drain valve device 5 will be described with further reference to FIG. FIG. 3 is a cross-sectional view of the drain valve device 5. As shown in FIG.

As shown in FIGS. 2 and 3 , the drain valve device 5 includes a body portion 51 , a drain valve body 52 , a guide portion 53 , an adjustment cylinder 54 and an overflow pipe 55 .

As shown in FIG. 3 , the main body 51 includes a drain pipe 511 inserted into the drain port 32 , a valve seat 512 formed above the drain pipe 511 and on which the drain valve body 52 is seated, and a drain valve from the valve seat 512 . A reduced-diameter portion 513 having a reduced diameter toward the cylinder 511 is provided.

The body portion 51 also includes a plurality of column portions 514 arranged concentrically with respect to the center of the drain port 32 . The plurality of pillars 514 are spaced apart from each other on the outside of the valve seat 512 .

The drain valve body 52 is arranged inside the plurality of column portions 514 in the body portion 51 . The drain valve body 52 includes a float 521 , a seal portion 522 and a wall portion 523 .

The float 521 has an internal space in which air is stored, and moves up and down in conjunction with the water level. The seal portion 522 is attached to the lower outer peripheral portion of the float 521 and closes the drain port 32 by abutting against the valve seat 512 in the body portion 51 when the float 521 descends. The wall portion 523 is provided on the upper outer peripheral portion of the float 521 and extends to a position higher than the upper surface of the float 521 . A plurality of openings 524 are formed in the peripheral surface of the wall portion 523 .

The guide portion 53 is a cylindrical member attached to the upper portion of the plurality of column portions 514 in the body portion 51 , extends above the plurality of column portions 514 , and guides the vertical movement of the drain valve body 52 . A plurality of openings 531 are formed in the peripheral surface of the guide portion 53 .

The adjustment cylinder 54 is a cylindrical member attached inside the wall portion 523 of the drain valve body 52 and closes a plurality of openings 524 formed in the wall portion 523 .

The adjustment cylinder 54 has a function of adjusting the buoyancy of the float 521 , and the wash water is stored in the water storage space formed between the float 521 and the upper surface of the float 521 . The height position of the drain valve body 52 with respect to can be changed. As a result, the timing at which the drain port 32 is closed by the drain valve body 52 can be made different between when the adjustment cylinder 54 is attached to the float 521 and when it is removed.

The plurality of openings 531 formed in the guide portion 53 are adjusted by the adjustment cylinder 54 when the drain valve body 52 is positioned at the lowest position of its movable range, specifically, at a position blocking the drain port 32 . It is partially blocked.

The drain valve body 52 has a connected portion 56 on the upper surface of the float 521 . A manual connection portion and an electric connection portion, which will be described later, are connected to the connected portion 56 .

The overflow pipe 55 is provided integrally with the body portion 51 on the side of the body portion 51 . The overflow pipe 55 is formed in a cylindrical shape, and causes washing water that has flowed in from an upper end opening 551 to flow out from a lower end opening 552 formed in the reduced diameter portion 513 of the body portion 51 . The wash water flowing out from the lower end opening 552 is discharged to the outside of the wash water tank 30 through the drain port 32 . As a result, washing water can be prevented from overflowing from the washing water tank 30 .

As shown in FIG. 2 , the wash water tank device 3 includes a manual pull-up portion 6 , an electric pull-up portion 7 , a manual connection portion 8 , and an electric connection portion 9 inside a wash water tank 30 .

The manual pull-up part 6 includes a handle 61 provided on the outer surface of the wash water tank 30 and a substantially L-shaped manual lever 62 having a proximal end connected to the handle 61 and extending into the wash water tank 30 . Prepare. The manual lever 62 swings, for example, to the front side in the drawing by rotating the handle 61 .

The tip of the manual lever 62 is located above the drain valve device 5 . A manual connection portion 8 to be described later is connected to the distal end portion of the manual lever 62 .

The electric pulling portion 7 includes a drive portion 71 attached to the upper portion of the overflow pipe 55 and an electric lever 72 driven by the drive portion 71 . The drive unit 71 operates according to a signal transmitted from a remote controller or the like (not shown) to swing the electric lever 72 . The tip of the electric lever 72 is positioned above the drain valve device 5 . An electric connecting portion 9 to be described later is connected to the tip of the electric lever 72 .

The manual connection portion 8 connects the manual pull-up portion 6 and the drain valve body 52 . The manual connecting portion 8 is lifted upward by swinging the manual lever 62 , thereby lifting the drain valve body 52 upward. Further, the electric connection portion 9 connects the electric pull-up portion 7 and the drain valve body 52 . The electrically operated connecting portion 9 is lifted upward by swinging of the electrically operated lever 72 , thereby pulling up the drain valve body 52 .

Here, specific configurations of the manual connection portion 8 and the electric connection portion 9 will be described with further reference to FIG. 4 . FIG. 4 is an enlarged cross-sectional view showing the periphery of the connected portion 56 of the drain valve body 52. As shown in FIG.

As shown in FIGS. 2 and 4 , the manual connection portion 8 includes a chain 81 , an upper end side connecting member 82 and a lower end side connecting member 83 . The chain 81 is an elongated member formed by connecting a plurality of metal rings. The upper end side connecting member 82 is, for example, a hook and attached to the upper end portion of the chain 81 . The upper end side connecting member 82 connects the manual pull-up part 6 and the chain 81 by being attached to one of the plurality of mounting holes 63 provided at the tip of the manual lever 62 . The lower end side connecting member 83 is, for example, a hog ring and attached to the lower end of the chain 81 . The lower end side connecting member 83 connects the drain valve body 52 and the chain 81 by being attached to a mounting hole 561 formed in the connected portion 56 provided on the upper surface of the float 521 .

The electrical connection portion 9 includes a chain 91 , an upper end side connecting member 92 and a lower end side connecting member 93 . The chain 91 is, like the chain 81, an elongated member formed by connecting a plurality of metal rings. The upper end side connecting member 92 is, for example, a hook and attached to the upper end of the chain 91 . The upper end side connection member 92 is attached to a mounting hole (not shown) provided at the tip of the electric lever 72 to connect the electric pulling part 7 and the upper end side connection member 92 . The lower end side connecting member 93 is, for example, a hook and attached to the lower end of the chain 91 . The lower end side connecting member 93 is connected to the lower end side connecting member 83 of the manual connection portion 8 , thereby connecting the drain valve body 52 and the chain 91 via the lower end side connecting member 83 .

Thus, the drain valve device 5 according to the embodiment is connected to the manual pull-up portion 6 and the electric pull-up portion 7 via the manual connection portion 8 and the electric connection portion 9, and the manual pull-up portion 6 is used. When the washing operation is performed manually, the manual connection portion 8 is pulled up, and when the electric washing operation using the electric pulling part 7 is performed, the electric connection portion 9 is pulled up, thereby removing the waste water. The valve body 52 can be pulled up to initiate the cleaning action.

On the other hand, since the manual connection portion 8 and the electric connection portion 9 are both connected to the connected portion 56, the chains 81 and 91 of the manual connection portion 8 and the electric connection portion 9 may become entangled. Moreover, there is a high possibility that the chains 81 and 91 will enter and get caught in the opening 531 formed in the guide portion 53, compared to the case where there is only one chain. If such interference between the chains 81 and 91 occurs, there is a risk that the cleaning operation will not be performed normally.

Therefore, in the washing water tank device 3 according to the embodiment, as shown in FIG. It was decided to cover with the member 102 . As a result, loosening of the manual connection portion 8 and the electric connection portion 9, specifically the chains 81 and 91, is suppressed, so that the chains 81 and 91 are less likely to get entangled with each other, and the opening 531 of the guide portion 53 does not fit. becomes difficult to enter. That is, interference between chains 81 and 91 is less likely to occur. Therefore, according to the washing water tank device 3 according to the embodiment, it is possible to appropriately perform the washing operation while supporting both the manual washing operation and the automatic washing operation.

Also, the upper end of the second cylindrical member 102 is located above the upper end of the guide portion 53 . FIG. 4 shows the state where the drain valve body 52 is arranged at the lowest position of the movable range, but the upper end of the second cylinder member 102 is the state where the drain valve body 52 is arranged at the highest position of the movable range. Needless to say, it is located above the upper end of the guide portion 53.

Thus, by setting the length of the second cylindrical member 102 so that the upper end of the second cylindrical member 102 is always positioned above the upper end of the guide portion 53, the opening 531 formed in the guide portion 53 can be opened. Intrusion of the second cylindrical member 102 can be suppressed. Therefore, interference between chain 91 and opening 531 can be suppressed.

The tubular member whose upper end is located above the guide portion 53 does not necessarily need to be the second tubular member 102 , and may be the first tubular member 101 .

One length of the second cylindrical member 102 is longer than the vertical width of the opening 531 formed in the guide portion 53 . Therefore, it is possible to more reliably prevent the second cylindrical member 102 from entering the opening 531 formed in the guide portion 53 .

Also, the lower end of the second cylindrical member 102 is positioned above the dead water level DWL in the flush water tank 30 . As a result, the second cylinder member 102 is not submerged in the wash water when the valve is closed, so that fluctuations in the dead water level DWL can be suppressed.

Further, the lower end of the first cylindrical member 101 is in contact with the lower end side connecting member 83 connected to the connected portion 56 in the manual connecting portion 8 . On the other hand, the lower end of the second tubular member 102 is located above the lower end of the first tubular member 101 . Specifically, the lower end of the second cylindrical member 102 is located above the upper end of the first cylindrical member 101 . Thereby, interference with the 1st cylinder member 101 and the 2nd cylinder member 102 can be suppressed. In addition, by shortening the length of the first cylinder member 101, it is possible to reduce the influence of the submersion of the first cylinder member 101 when the valve is closed on the dead water level DWL.

Here, an example in which the adjustment cylinder 54 is provided for the drain valve body 52 is shown, but in the case where the adjustment cylinder 54 is not provided for the drain valve body 52, the length of the first cylinder member 101 is the length of the guide portion. It may be set to be longer than the vertical width of the opening 531 at 53 . Also, the length of the first tubular member 101 may be set such that the upper end of the first tubular member 101 is always positioned above the upper end of the guide portion 53 .

The drain valve device 5 also includes a first contact member 111 , a second contact member 121 and a third contact member 122 . The first contact member 111 is a disk-shaped member having a diameter larger than that of the first tubular member 101, and is fixed to the chain 81 of the manual connection portion 8. When the first tubular member 101 moves upward, the first contact member 111 1 It abuts on the upper end of the cylindrical member 101 . By providing the first contact member 111 on the chain 81 in this way, it is possible to suppress the exposure of the chain 81 due to the upward movement of the first cylindrical member 101 due to the buoyancy.

As described above, the lower end of the first tubular member 101 contacts the lower end side connecting member 83 . That is, the movement of the first cylinder member 101 is restricted by the first contact member 111 and the lower end side connection member 83 . The clearance between the upper end of the first cylindrical member 101 and the first contact member 111 when the first cylindrical member 101 is in contact with the lower end side connecting member 83 is set to a distance shorter than one wheel of the chain 81. be done. As a result, the chain 81 protrudes from between the upper end of the first cylindrical member 101 and the first contact member 111 or from between the lower end of the first cylindrical member 101 and the lower end side connecting member 83 and becomes entangled with the chain 91 or the guide portion. Entry into the opening 531 of 53 can be suppressed.

The second contact member 121 is a disk-shaped member having a diameter larger than that of the second tubular member 102, and is fixed to the chain 91 of the electrical connection portion 9. When the second tubular member 102 moves upward, the second contact member 121 It abuts on the upper end of the two-cylinder member 102 . By providing the second contact member 121 on the chain 91 in this way, it is possible to prevent the chain 91 from being exposed when the second tubular member 102 moves upward due to the buoyancy. The third contact member 122 is a disk-shaped member having a diameter larger than that of the second cylindrical member 102, and is fixed to the chain 91 of the electrical connection portion 9, so that when the second cylindrical member 102 moves downward, the third contact member 122 2 It abuts on the lower end of the cylindrical member 102 .

Thus, the movement of the second cylindrical member 102 is restricted by the second contact member 121 and the third contact member 122 . The clearance between the upper end of the second cylindrical member 102 and the second contacting member 121 when the second cylindrical member 102 is in contact with the third contacting member 122 is a distance shorter than one ring of the chain 91. set. As a result, the chain 91 protrudes from between the upper end of the second cylindrical member 102 and the second contact member 121 or from between the lower end of the second cylindrical member 102 and the third contact member 122 and becomes entangled with the chain 81 or guide. Entry into the opening 531 of the portion 53 can be suppressed.

In addition, the third contact member 122 is fixed to the chain 91 above one loop of the chain 91 connected to the lower end side connecting member 93 . In this way, by exposing one wheel portion of the chain 91 connected to the lower end side connecting member 93 from the second cylindrical member 102 to secure the degree of freedom, entanglement between the lower end side connecting member 93 and the chain 91 is suppressed. be able to.

As described above, the washing water tank device 3 according to the embodiment includes the drain valve device 5 , the elongated manual connection portion 8 , and the elongated electric connection portion 9 . The drain valve device 5 is arranged inside a flush water tank 30 that stores flush water to be supplied to the toilet bowl 2, and includes a drain valve body 52 that opens and closes a drain port 32 of the flush water tank 30. It has a cylindrical guide portion 53 that guides movement, and at least one opening 531 provided on the side surface of the guide portion 53 . The elongated manual connection portion 8 has a lower end connected to a connected portion 56 provided on the drain valve body 52 and an upper end connected to the manual pull-up portion 6 . The elongated electric connecting portion 9 has a lower end connected to the connected portion 56 and an upper end connected to the electric pulling portion 7 . Further, in the washing water tank device 3 according to the embodiment, a portion of the manual connecting portion 8 is covered with the first cylindrical member 101 and a portion of the electric connecting portion 9 is covered with the second cylindrical member 102 .

By covering the manual connecting portion 8 and the electric connecting portion 9 with the first cylindrical member 101 and the second cylindrical member 102, respectively, loosening of the manual connecting portion 8 and the electric connecting portion 9 is suppressed. The connection portion 8 and the electric connection portion 9 are less likely to get entangled with each other, and are less likely to enter the opening 531 of the guide portion 53 . In this way, since interference between the manual connection portion 8 and the electric connection portion 9 is less likely to occur, it is possible to appropriately perform the cleaning operation while supporting both the manual cleaning operation and the automatic cleaning operation. can be done.

Moreover, the upper end of at least one of the first cylindrical member 101 and the second cylindrical member 102 is located above the upper end of the guide portion 53 . Accordingly, it is possible to prevent the first cylindrical member 101 or the second cylindrical member 102 from entering the opening 531 formed in the guide portion 53 . Therefore, interference between the manual connecting portion 8 or the electric connecting portion 9 and the opening 531 can be suppressed.

Also, the length of one of the first cylindrical member 101 and the second cylindrical member 102 is longer than the vertical width of the opening 531 of the guide portion 53 . Therefore, it is possible to more reliably prevent the first cylindrical member 101 or the second cylindrical member 102 from entering the opening 531 formed in the guide portion 53 .

Also, the lower end of one of the first cylindrical member 101 and the second cylindrical member 102 is positioned above the dead water level DWL in the wash water tank 30 . As a result, fluctuations in the dead water level DWL can be suppressed.

Further, the lower end of one of the first cylindrical member and the second cylindrical member is connected to the connected portion of one of the manual connection portion and the electric connection portion provided with one of the first cylindrical member and the second cylindrical member. The lower end of the other of the first tubular member and the second tubular member is positioned above the lower end of one of the first tubular member and the second tubular member. Thereby, interference with the 1st cylinder member 101 and the 2nd cylinder member 102 can be suppressed.

Further, the washing water tank device according to the embodiment includes a first contact member and a second contact member. The first contact member is fixed to the manual connection portion, and contacts the upper end of the first cylindrical member when the first cylindrical member moves upward. The second abutting member is fixed to the electric connecting portion and abuts on the upper end of the second tubular member when the second tubular member moves upward. As a result, it is possible to prevent the manual connection portion 8 and the electric connection portion 9 from being exposed due to upward movement of the first cylindrical member 101 and the second cylindrical member 102 due to buoyancy.

Further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspects of the invention are not limited to the specific details and representative embodiments so shown and described. Accordingly, various changes may be made without departing from the spirit or scope of the general inventive concept defined by the appended claims and equivalents thereof.

REFERENCE SIGNS LIST 1 flush toilet device 2 toilet bowl 3 flush water tank device 4 water supply device 5 drain valve device 6 manual pull-up portion 7 electric pull-up portion 30 flush water tank 51 body portion 52 drain valve body 53 guide portion 101 first cylindrical member 111 first hitch Contact member 102 Second cylindrical member 121 Second contact member 122 Third contact member 531 Opening

Claims (5)

A drain valve that is arranged inside a flush water tank that stores flush water to be supplied to the toilet and opens and closes a drain port of the flush water tank; and a cylindrical guide part that guides vertical movement of the drain valve. , at least one opening provided in the side surface of the guide part; and
an elongated manual connection portion having a lower end connected to a connected portion provided on the drain valve body and having an upper end connected to a manual pull-up portion;
an elongated electric connection part having a lower end connected to the connected part and an upper end connected to the electric pulling part,
A portion of the manual connection portion is covered by a first cylindrical member, and a portion of the electric connection portion is covered by a second cylindrical member,
The washing water tank device , wherein the upper end of at least one of the first cylindrical member and the second cylindrical member is located above the upper end of the guide portion . A drain valve that is arranged inside a flush water tank that stores flush water to be supplied to the toilet and opens and closes a drain port of the flush water tank; and a cylindrical guide part that guides vertical movement of the drain valve. , at least one opening provided in the side surface of the guide part; and
an elongated manual connection portion having a lower end connected to a connected portion provided on the drain valve body and having an upper end connected to a manual pull-up portion;
an elongated electric connection part having a lower end connected to the connected part and an upper end connected to the electric pulling part;
with
A portion of the manual connection portion is covered by a first cylindrical member, and a portion of the electric connection portion is covered by a second cylindrical member,
The washing water tank device, wherein the length of one of the first cylindrical member and the second cylindrical member is longer than the vertical width of the opening. A drain valve that is arranged inside a flush water tank that stores flush water to be supplied to the toilet and opens and closes a drain port of the flush water tank; and a cylindrical guide part that guides vertical movement of the drain valve. , at least one opening provided in the side surface of the guide part; and
an elongated manual connection portion having a lower end connected to a connected portion provided on the drain valve body and having an upper end connected to a manual pull-up portion;
an elongated electric connection part having a lower end connected to the connected part and an upper end connected to the electric pulling part;
with
A portion of the manual connection portion is covered by a first cylindrical member, and a portion of the electric connection portion is covered by a second cylindrical member,
A lower end of one of the first cylindrical member and the second cylindrical member is located at one of the manual connecting portion and the electric connecting portion where one of the first cylindrical member and the second cylindrical member is provided. The lower end of the other of the first cylindrical member and the second cylindrical member is in contact with the lower end side connecting member connected to the connected portion, and the lower end of the other of the first cylindrical member and the second cylindrical member is one of the first cylindrical member and the second cylindrical member. A washing water tank device located above the lower end. A drain valve that is arranged inside a flush water tank that stores flush water to be supplied to the toilet and opens and closes a drain port of the flush water tank; and a cylindrical guide part that guides vertical movement of the drain valve. , at least one opening provided in the side surface of the guide part; and
an elongated manual connection portion having a lower end connected to a connected portion provided on the drain valve body and having an upper end connected to a manual pull-up portion;
an elongated electric connection part having a lower end connected to the connected part and an upper end connected to the electric pulling part;
with
A portion of the manual connection portion is covered by a first cylindrical member, and a portion of the electric connection portion is covered by a second cylindrical member,
a first contact member that is fixed to the manual connection portion and contacts the upper end of the first cylindrical member when the first cylindrical member moves upward;
a second abutting member fixed to the electric connecting portion and abutting against an upper end of the second tubular member when the second tubular member moves upward. The wash water tank device according to any one of claims 1 to 4 , wherein a lower end of one of said first cylindrical member and said second cylindrical member is positioned above a dead water level in said wash water tank.

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