JP2020133315A - Flush water tank device - Google Patents

Abstract

To control the leakage of water and water vapor inside the tank body.SOLUTION: A flush water tank device according to an embodiment includes a tank body, a tank lid, a water supply device, and a seal member. The tank body stores flush water. The tank lid has a cutout part opening to the tank body side and covers the tank body above. The water supply device has an electric component arranged outside the cutout part and supplies flush water to the tank body. The seal member is disposed between the tank body and the support member that is disposed outside the cutout part to support the electric component.SELECTED DRAWING: Figure 9

Description

The disclosed embodiment relates to a wash water tank device.

Conventionally, there is known a washing water tank device in which a notch is provided in a tank body and a drainage operation portion is arranged in the notch (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-190269

In the washing water tank device described above, a part of the notch is closed by the wall portion provided on the lid portion. By using such a technique, it is conceivable that a part of electric parts such as a solenoid valve of a water supply device is arranged outside the tank body through a notch.

However, in such a washing water tank device, water or water vapor in the tank body may leak from a part of the electric component and the lower end of the notch.

One aspect of the embodiment is to provide a washing water tank device that suppresses leakage of water in the tank body and water vapor.

In the washing water tank device according to one aspect of the embodiment, a tank body for storing washing water, a tank lid having a notch formed on the tank body side and covering the upper part of the tank body, and the notch. An electric component is arranged on the outside of the tank body and is arranged between a water supply device for supplying washing water to the tank body and a support member arranged on the outside of the notch and supporting the electric component and the tank body. It is characterized by including a sealing member.

The washing water tank device can suppress the washing water stored in the storage portion and the water vapor from leaking from the lower end side of the support member.

Further, the tank body includes a first plane portion on which the seal member is arranged, the support member is substantially parallel to the first plane portion, and the first plane portion sandwiches the seal member. The seal member is sandwiched between the first flat surface portion and the second flat surface portion.

In the washing water tank device, the seal member can be uniformly sandwiched between the first flat surface portion of the tank body and the second flat surface portion of the support member, and a gap is provided between the tank body or the support member and the seal member. Can be suppressed, and the leakage of washing water and water vapor from the tank body can be suppressed.

Further, the support member extends toward the tank body and includes an extending portion on which the second flat surface portion is formed at the tip, and the extending portion extends the sealing member by the second flat surface portion. It is characterized by crushing.

The washing water tank device can improve the sealing property of the sealing member by crushing the sealing member by the second flat surface portion, and can suppress the leakage of washing water and water vapor from the tank body.

Further, the seal member is characterized in that it has a plate shape.

In the washing water tank device, even when the position of the support member is displaced in the front-rear direction, for example, the seal member can be sandwiched between the second flat surface portion of the support member and the first flat surface portion of the tank body. it can. Therefore, the washing water tank device can maintain the sealing property even when the position of the support member is displaced, and can suppress the leakage of washing water and water vapor from the tank body.

Further, the support member is characterized by including a plate portion facing the wall portion of the tank lid in which the notch portion is formed.

By arranging the cleaning water tank device so that the wall portion of the tank lid and the plate portion of the support member overlap each other, it is possible to suppress the leakage of cleaning water and water vapor from the tank body.

Further, the tank lid body is characterized by having a protruding portion formed around the notch portion so as to project outward from the wall portion, and the support member includes an opposing wall portion facing the protruding portion. And.

The washing water tank device holds the washing water and the leaked washing water when water vapor leaks from the tank body in the gap formed by the protruding portion of the tank lid and the facing wall portion of the support member. , It is possible to suppress leakage to the electrical component side.

Further, the tank body includes a water receiving portion formed below the electric component, and the protruding portion and the facing wall portion receive water generated between the protruding portion and the facing wall portion. It is characterized by guiding toward the water receiving part.

The washing water tank device can flow the washing water leaked from the tank body to the water receiving part, suppress the leakage to the electric parts side, suppress the occurrence of electric leakage, etc., and adversely affect the electric parts. Can be suppressed.

According to one aspect of the embodiment, damage to the internal flow path unit can be suppressed.

FIG. 1 is a cross-sectional view of a flush toilet bowl. FIG. 2 is a perspective view of the washing water tank device as viewed from the upper left. FIG. 3 is a perspective view of the washing water tank device as viewed from the lower right. FIG. 4 is a front view of the washing water tank device as viewed from the front. FIG. 5 is a perspective view of FIG. 2 in a state where the tank lid is omitted. FIG. 6 is a plan view of the washing water tank device without the tank lid as viewed from above. FIG. 7 is an enlarged front view of the vicinity of the solenoid valve. FIG. 8 is an exploded perspective view in the vicinity of the solenoid valve. FIG. 9 is a sectional view taken along line IX-IX of FIG.

Hereinafter, embodiments of the wash water tank device disclosed in the present application will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments shown below.

First, the flush toilet bowl 1 to which the flush water tank device 3 according to the embodiment is applied will be described with reference to FIG. FIG. 1 is a cross-sectional view of the flush toilet bowl 1. FIG. 1 illustrates a Cartesian coordinate system for illustration purposes. The Cartesian coordinate system is also shown in other figures.

In the Cartesian coordinate system, the positive direction of the X-axis is defined as "left" and the negative direction of the X-axis is defined as "right". Further, in the Cartesian coordinate system, the positive direction of the Y-axis is defined as "forward" and the negative direction of the Y-axis is defined as "rear". Further, in the Cartesian coordinate system, the positive direction of the Z axis is defined as "upward" and the negative direction of the Z axis is defined as "downward". Therefore, in the following description, the X-axis direction may be referred to as the left-right direction, the Y-axis direction may be referred to as the front-back direction, and the Z-axis direction may be referred to as the up-down direction.

The flush toilet 1 includes a toilet body 2 and a flush water tank device 3. Although not shown, the flush toilet 1 is provided with a local cleaning device for cleaning the local area of the user.

A bowl portion 4, a headrace 5, and a drain trap pipe 6 are formed in the toilet body 2.

The bowl portion 4 is formed with a first spout port 4a from which the wash water is discharged from the wash water tank device 3 through the headrace 5. The washing water discharged from the first spout 4a descends while swirling the bowl portion 4 to wash the bowl portion 4.

Below the bowl portion 4, a water reservoir portion 7 in which the wash water is stored as a reservoir water is formed. The inlet 6a of the drain trap pipeline 6 opens below the water reservoir 7. The drain trap pipeline 6 is formed with an ascending path 6b extending diagonally upward from the inlet 6a and a descending path 6c extending obliquely downward from the rear end of the ascending path 6b.

Further, above the water reservoir portion 7, a second spout port 4b is formed in which wash water is discharged from the tank body 10 via the headrace 5. Specifically, the second water spout 4b is formed above the water reservoir 7 and below the first water spout 4a. The wash water discharged from the second spout port 4b creates a swirling flow that swirls the pooled water of the pool portion 7 in the vertical direction.

The wash water tank device 3 is provided above the headrace 5, and stores the wash water to be supplied to the toilet bowl main body 2. The cleaning water tank device 3 is covered with an exterior cover 8 together with the local cleaning device, and is integrally configured with the local cleaning device. Therefore, the flush toilet 1 can improve the design.

The wash water tank device 3 is formed in the first bottom portion 11a of the wash water tank device 3, and supplies wash water to the headrace 5 from a drain port 11b extending in the upward direction.

Next, the washing water tank device 3 will be described with reference to FIGS. 2 to 9. FIG. 2 is a perspective view of the washing water tank device 3 as viewed from the upper left. FIG. 3 is a perspective view of the washing water tank device 3 as viewed from the lower right. FIG. 4 is a front view of the washing water tank device 3 as viewed from the front. FIG. 5 is a perspective view of FIG. 2 in a state where the tank lid 20 is omitted. FIG. 6 is a plan view of the washing water tank device 3 in which the tank lid 20 is omitted, as viewed from above. FIG. 7 is an enlarged front view of the vicinity of the solenoid valve. FIG. 8 is an exploded perspective view in the vicinity of the solenoid valve. FIG. 9 is a sectional view taken along line IX-IX of FIG.

The washing water tank device 3 includes a tank body 10, a tank lid 20, a water supply device 30, and a drain valve device 40.

The tank body 10 is attached to the toilet body 2 (see FIG. 1). The tank body 10 includes a storage portion 11 and a mounting portion 12.

The storage portion 11 is formed in a box shape with an upper opening. In the storage portion 11, a drain port 11b is formed at the first bottom portion 11a located at the lower end. As shown in FIG. 3, the storage portion 11 is formed with a recess 14 in a lower right rear corner. A water supply hose (not shown) connected to a water supply source (not shown) that supplies tap water or the like from the outside is arranged in the recess 14. A water supply port 14b to which a water supply hose is connected is formed in the second bottom portion 14a formed with the recess 14 and provided above the first bottom portion 11a.

A part of the water supply device 30 and a part of the drain valve device 40 are arranged in the storage unit 11. Tap water or the like is supplied into the storage unit 11 via a water supply hose and a water supply device 30. The supplied tap water or the like is stored in the storage unit 11 as wash water. The stored wash water is supplied to the headrace 5 (see FIG. 1) of the toilet bowl main body 2 by the drain valve device 40.

The attachment portion 12 is attached to the upper end of the storage portion 11. An opening 12a (see FIGS. 5 and 6) is formed in the mounting portion 12 so that, for example, an operator can check the inside of the storage portion 11 while being mounted on the storage portion 11. That is, the tank body 10 is formed so as to open upward.

A float switch 50 and a part of the drain valve device 40, specifically, a rotating device 42 of the drain valve device 40 are attached to the mounting portion 12. The float switch 50 is attached to the attachment portion 12 near the center on the front side, and the rotating device 42 of the drain valve device 40 is attached to the left side of the float switch 50. The float switch 50 detects the full level of the washing water in the tank body 10. The water level detection result of the float switch 50 is transmitted to a controller (not shown).

A water receiving portion 15 is formed on the mounting portion 12 on the right side of the float switch 50. Further, a part of the water supply device 30, specifically, a support portion 34 of the water supply device 30, is arranged in the mounting portion 12 behind the water receiving portion 15.

The water receiving portion 15 is formed below the solenoid valve 32 which is a part of the water supply device 30. The water receiving portion 15 is formed by a first bottom portion 15a and side wall portions 15b to 15e protruding upward from the first bottom portion 15a. Water leaking from between the tank lid 20 and the support portion 34 of the water supply device 30 flows into the water receiving portion 15.

A drainage portion 15f is formed on the first bottom portion 15a to discharge the water flowing into the water receiving portion 15 to the toilet bowl main body 2. A through hole 15 g (see FIG. 6) is formed in the drainage portion 15f. A drain hose (not shown) for flowing water through the toilet body 2 is connected to the drain portion 15f.

Further, in the mounting portion 12, a recess 15h (see FIG. 9) is formed behind the side wall portion 15c on the rear side. The recess 15h is formed so that the length in the left-right direction is longer than the length in the front-rear direction. The second bottom portion 15i (first flat surface portion) of the recess 15h is formed in a flat shape. A seal member 16 is arranged in the recess 15h. The seal member 16 is formed in a plate shape. The seal member 16 comes into surface contact with the second bottom portion 15i of the recess 15h.

Further, a plurality of engaging portions 17 with which the claw portions 21 of the tank lid 20 are engaged are formed in the mounting portion 12.

The tank lid 20 is provided so as to cover the opening 12a of the mounting portion 12. That is, the tank lid 20 is provided so as to cover the upper part of the tank body 10.

The tank lid 20 is attached to the tank body 10 by engaging the plurality of claws 21 with the engaging portions 17 of the attachment portions 12. A front wall portion 22 (wall portion) is formed on the tank lid 20 on the right front side. The front wall portion 22 is formed along the vertical direction. A notch 22a (see FIGS. 8 and 9) is formed in the front wall portion 22. The notch 22a has a rectangular shape and is formed so as to open toward the tank body 10.

The front wall portion 22 is formed with rib portions 23 (protruding portions, see FIGS. 7, 7 and 8) that project forward. The rib portion 23 is formed on the outside of the notch portion 22a and is formed along the notch portion 22a. The rib portion 23 includes a first rib portion 23a formed above the notch portion 22a in the left-right direction and a second rib portion 23b formed downward from the right end portion of the first rib portion 23a. And a third rib portion 23c formed downward from the left end portion of the first rib portion 23a.

The water supply device 30 supplies tap water or the like to the storage unit 11 according to the water level of the wash water in the storage unit 11 and adjusts the water level of the wash water in the storage unit 11. The water supply device 30 includes a water supply unit 31 (see FIGS. 5 and 6) and a solenoid valve 32 (electrical component).

A water supply flow path (not shown) through which tap water or the like flows is formed in the water supply unit 31. The water supply unit 31 supplies tap water or the like supplied via the water supply hose to the storage unit 11 of the tank body 10. A valve body (not shown) is provided in the water supply flow path. The valve body is opened and closed by the solenoid valve 32 to control the supply of tap water or the like to the storage unit 11. Specifically, the water supply device 30 supplies tap water or the like to the storage unit 11 by opening the valve body. Further, the water supply device 30 stops the supply of tap water or the like to the storage unit 11 when the valve body is closed.

The water supply unit 31 includes a main body unit 33 and a support unit 34 (support member). The main body 33 is arranged in a space formed by the tank main body 10 and the tank lid 20.

One end of the main body 33 is connected to a water supply port 14b formed in the tank main body 10. The main body 33 extends upward from the connection point with the water supply port 14b, and bends or curves upward toward the center of the tank main body 10. At the other end of the main body 33, a water discharge unit 33a (see FIGS. 5 and 6) for discharging tap water or the like is provided in the storage unit 11.

The support portion 34 is arranged outside the notch portion 22a of the tank lid 20, specifically in front of the notch portion 22a, and connects to the main body portion 33 via a connecting portion 35 penetrating the notch portion 22a. A solenoid valve 32 is attached to the support portion 34. The support portion 34 includes a rectangular plate portion 36 and a rib portion 37 (opposing wall portion) formed on the peripheral edge of the plate portion 36. The support portion 34 may be provided as a separate body from the main body portion 33. Further, "the support portion 34 is arranged outside the notch portion 22a" includes that a part of the support portion 34 is arranged inside the notch portion 22a.

The plate portion 36 faces the front wall portion 22 of the tank lid 20 in which the notch portion 22a is formed. A gap is formed between the plate portion 36 and the front wall portion 22. That is, when the support portion 34 is viewed from the front, the plate portion 36 and the front wall portion 22 partially overlap each other, and a gap is formed between the plate portion 36 and the front wall portion 22 in the front-rear direction. .. The plate portion 36 and the front wall portion 22 may be arranged so as to come into contact with each other without forming a gap between the plate portion 36 and the front wall portion 22.

As shown in FIGS. 7 and 8, the rib portion 37 is formed by extending the extending portion 37a extending downward from the lower peripheral edge of the plate portion 36 and extending forward from the upper peripheral edge of the plate portion 36. The first rib portion 37b to be formed, the second rib portion 37c formed from the right peripheral edge of the plate portion 36 toward the front, and the third rib portion 37c formed from the left peripheral edge of the plate portion 36 toward the front. It includes a rib portion 37d. The first rib portion 37b to the third rib portion 37d may be formed toward the rear, or toward the front and the rear.

As shown in FIG. 9, a flat surface portion 37e (second flat surface portion) is formed at the lower tip of the extending portion 37a. The flat surface portion 37e is formed so as to be substantially parallel to the second bottom portion 15i of the recess 15h of the mounting portion 12. The extending portion 37a is formed so that the flat surface portion 37e comes into contact with the seal member 16. Specifically, the extending portion 37a is formed so that the sealing member 16 is sandwiched between the flat surface portion 37e and the second bottom portion 15i of the recess 15h, and the sealing member 16 is crushed by the flat surface portion 37e.

In addition, "substantially parallel" may be parallel to the extent that the seal member 16 can be pressed by the second bottom portion 15i and the flat surface portion 37e.

Further, as shown in FIG. 9, since the extending portion 37a is configured to extend below the upper surface of the sealing member 16 in the assembled state, the sealing member 16 can be crushed satisfactorily. Further, since the extending portion 37a is configured to extend below the upper end of the recess 15h accommodating the seal member 16, for example, the upper end of the side wall portion 15c forming the recess 15h, the sealing member 16 is reliably provided. Can be crushed.

As shown in FIG. 7, the first rib portion 37b is formed so as to face the first rib portion 23a of the tank lid 20. A gap is formed between the first rib portion 37b and the first rib portion 23a of the tank lid 20.

As shown in FIG. 7, the second rib portion 37c is formed so as to face the second rib portion 23b of the tank lid 20. A gap is formed between the second rib portion 37c and the second rib portion 23b of the tank body 10.

As shown in FIG. 7, the third rib portion 37d is formed so as to face the third rib portion 23c of the tank lid 20. A gap is formed between the third rib portion 37d and the third rib portion 23c of the tank body 10.

The first rib portion 37b, the second rib portion 37c, and the third rib portion 37d are configured to cover the periphery of the notch portion 22a so as to be continuous with each other. Further, the first rib portion 37b, the second rib portion 37c, and the third rib portion 37d are surrounded by the first rib portion 23a, the second rib portion 23b, and the third rib portion 23c, and form the peripheral edge of the notch portion 22a. The front wall portion 22 is configured to extend below the upper end of the opening of the tank body 10. As a result, the water in the gap between the rib portions 23a to 23c and the rib portions 37b to 37d is guided downward by the front wall portion 22 extending below the upper end of the opening of the tank body 10 to the tank body 10. Flow down. It is also preferable to configure the entire circumference so that the lower end of the tank lid 20 extends below the upper end of the opening of the tank body 10.

The solenoid valve 32 is arranged outside the tank lid 20. A part of the solenoid valve 32 may be arranged inside the tank lid 20. That is, "the solenoid valve 32 is arranged outside the tank lid 20" includes that a part of the solenoid valve 32 is arranged inside the tank lid 20.

The solenoid valve 32 is attached to the support portion 34 and is supported by the support portion 34. A current is supplied to the solenoid valve 32 from the outside via the connector 32a. The solenoid valve 32 opens and closes the valve body by controlling the current supplied based on the water level of the storage unit 11 detected by the float switch 50. Specifically, the solenoid valve 32 is energized when the water level of the storage unit 11 is lower than the predetermined full water level, and the valve body is opened. Further, the solenoid valve 32 is in a non-energized state when the water level of the storage unit 11 is equal to or higher than a predetermined full water level, and the valve body is closed. The current supplied to the solenoid valve 32 is controlled by a controller (not shown).

Although detailed description is omitted, the water supply device 30 includes a mechanical on-off valve body device 39 (see FIG. 6) having a float 38 that moves up and down according to the water level of the tank body 10, and moves up and down the float 38. The valve body can be opened and closed according to the movement. As a result, the water supply device 30 supplies tap water or the like to the tank body 10 and makes the flush toilet 1 usable even in the event of a power failure or failure of the solenoid valve 32.

As shown in FIGS. 5 and 6, the drain valve device 40 drains water by moving the overflow pipe 41, the drain valve (not shown) fixed to the lower end of the overflow pipe 41, and the overflow pipe 41 up and down. A rotating device 42 for opening and closing the valve is provided.

The rotating device 42 is arranged outside the tank lid 20. The rotating device 42 is attached to the attachment portion 12. The rotating device 42 opens the drain valve by rotating the rotating shaft 42a by a driving unit (not shown) such as a DC motor and pulling up the ball chain 43 connected to the tip of the rotating shaft 42a. The wash water stored in the storage unit 11 is supplied to the headrace 5 (see FIG. 1).

The rotation device 42 can rotate the rotation shaft 42a by rotating the operation lever 44 by the user, and can be manually operated in the event of a power failure or the like.

Next, the operation and effect of the washing water tank device 3 according to the embodiment will be described.

The washing water tank device 3 is provided with a notch 22a in the tank lid 20, and is an electromagnetic valve 32 which is an electric component of the water supply device 30 on the outside of the notch 22a (in front of the notch 22a), that is, on the outside of the tank lid 20. To place. Further, the washing water tank device 3 arranges the seal member 16 between the support portion 34 arranged outside the notch portion 22a and supporting the solenoid valve 32 and the tank main body 10.

As a result, the washing water tank device 3 seals the lower end of the support portion 34 with the sealing member 16. Therefore, the washing water tank device 3 can suppress the leakage of the washing water and water vapor stored in the storage unit 11 from the lower end side of the support portion 34.

In the washing water tank device according to the comparative example, it is conceivable that a notch is also formed in the tank body (mounting part) and the notch is composed of the tank lid and the tank body.

However, in this case, a gap is generated between the tank lid forming the notch and the tank body, and the generated gap may cause washing water or water vapor to leak from the storage portion.

On the other hand, in the washing water tank device 3 according to the embodiment, the notch portion 22a is provided only in the tank main body 10. Therefore, the washing water tank device 3 can suppress the formation of a gap between the tank lid 20 and the tank body 10, and can prevent the washing water and water vapor from leaking from the storage unit 11.

Further, in the washing water tank device 3, the tank body 10 can be easily attached from above with the support portion 34 arranged by providing the tank lid 20 with a notch portion 22a that opens downward. As a result, the wash water tank device 3 can improve the assembleability.

Further, the washing water tank device 3 is provided with a recess 15h for arranging the seal member 16 in the mounting portion 12, and a second bottom portion 15i formed in a flat shape is provided in the recess 15h. Further, the washing water tank device 3 provides the support portion 34 with an extending portion 37a having a flat surface portion 37e substantially parallel to the second bottom portion 15i of the recess 15h. Then, the washing water tank device 3 sandwiches the seal member 16 between the second bottom portion 15i of the recess 15h and the flat surface portion 37e.

As a result, the washing water tank device 3 can uniformly sandwich the seal member 16 between the support portion 34 and the mounting portion 12, and there is a gap between the support portion 34 or the mounting portion 12 and the seal member 16. It is possible to suppress the occurrence of the washing water and the leakage of water vapor from the storage unit 11.

Further, the washing water tank device 3 crushes the seal member 16 by the flat surface portion 37e of the extending portion 37a of the support portion 34. As a result, the washing water tank device 3 can improve the sealing property of the sealing member 16 and suppress the leakage of washing water and water vapor from the storage unit 11.

Further, in the washing water tank device 3, the plate-shaped seal member 16 is arranged in the recess 15h of the mounting portion 12. As a result, in the washing water tank device 3, even if the position of the support portion 34 is displaced in the front-rear direction, the second portion of the flat portion 37e of the extending portion 37a of the support portion 34 and the recess 15h of the mounting portion 12 The seal member 16 can be sandwiched between the bottom portion 15i. Therefore, the washing water tank device 3 can maintain the sealing property even when the position of the support portion 34 is displaced in the front-rear direction, and suppresses the leakage of washing water and water vapor from the storage portion 11. Can be done.

Further, the washing water tank device 3 arranges the plate portion 36 of the support portion 34 facing the front wall portion 22 of the tank lid 20 on which the notch 22a is formed, outside the tank lid 20. That is, in the washing water tank device 3, the front wall portion 22 of the tank lid 20 and the plate portion 36 of the support portion 34 are arranged so as to be overlapped in the front-rear direction.

As a result, the washing water tank device 3 can suppress the leakage of washing water and water vapor from the storage unit 11.

Further, the washing water tank device 3 is provided with a rib portion 23 protruding outward from the front wall portion 22 of the tank lid 20 and formed around the notch 22a in the tank lid 20. Further, the washing water tank device 3 is provided with a rib portion 37 facing the rib portion 23 of the tank lid 20 on the support portion 34.

As a result, the washing water tank device 3 is formed between the tank lid 20 and the support portion 34, and the path leading from the inside of the tank body 10 to the outside can be bent. For example, as shown in FIG. 9, a gap formed between the front wall portion 22 of the tank lid 20 and the plate portion 36 of the support portion 34, and the first rib portion 23a and the support portion 34 of the tank lid 20 are formed. The path formed by the gap formed between the first rib portion 37b and the first rib portion 37b can be bent. Therefore, the washing water tank device 3 can suppress the leakage of washing water and water vapor from the storage unit 11.

Further, the washing water tank device 3 is formed by the rib portion 23 of the tank lid 20 and the rib portion 37 of the support portion 34 to form the washing water and the leaked washing water when water vapor leaks from the storage portion 11. It can be held in the gap to be formed by surface tension and can be suppressed from leaking to the solenoid valve 32 side.

Further, the washing water tank device 3 allows the leaked washing water or the like to be pushed below the solenoid valve 32 through a gap formed between the rib portion 23 of the tank lid 20 and the rib portion 37 of the support portion 34. It can be flowed, and for example, it is possible to prevent the washing water from flowing forward, that is, toward the solenoid valve 32 side. As a result, the washing water tank device 3 can suppress the washing water from being applied to the solenoid valve 32, suppress the occurrence of electric leakage, and suppress the adverse effect on the solenoid valve 32.

Further, the washing water tank device 3 forms a rib portion 23 of the tank lid 20 and a rib portion 37 of the support portion 34 so as to have a rectangular shape when viewed from the front.

As a result, the washing water tank device 3 is provided with, for example, a gap formed between the rib portion 23 of the tank lid 20 and the rib portion 37 of the support portion 34 when the washing water leaks from the storage portion 11. The leaked washing water can be uniformly flowed in the left-right direction, and the washing water can be suppressed from flowing to the solenoid valve 32 side. Therefore, the washing water tank device 3 can suppress the washing water from being applied to the solenoid valve 32, suppress the occurrence of electric leakage, and suppress the adverse effect on the solenoid valve 32.

Further, the washing water tank device 3 is provided with a water receiving portion 15 in the mounting portion 12 below the solenoid valve 32, and the leaked washing water or the like is collected by the rib portion 23 of the tank lid 20 and the rib portion 37 of the support portion 34. It is guided to the water receiving portion 15 through the gap formed between the water receiving portion 15.

As a result, the washing water tank device 3 can flow the washing water leaked from the storage part 11 to the water receiving part 15, suppresses the washing water from being applied to the solenoid valve 32, suppresses the occurrence of electric leakage, and electromagnetically. It is possible to suppress adverse effects on the valve 32.

Further effects and variations can be easily derived by those skilled in the art. For this reason, the broader aspects of the invention are not limited to the particular details and representative embodiments expressed and described as described above. Therefore, various modifications can be made without departing from the spirit or scope of the general concept of the invention as defined by the appended claims and their equivalents.

1 Flush toilet 2 Toilet bowl body 3 Washing water tank device 10 Tank body 11 Storage part 12 Mounting part 15 Water receiving part 15h Recess 15i Second bottom (first flat part)
16 Seal member 20 Tank lid 22 Front wall (wall)
22a Notch 23 Rib (protruding)
30 Water supply device 31 Water supply unit 32 Solenoid valve (electrical parts)
32a Connector 33 Main body 34 Support (support member)
36 Plate 37 Rib (opposite wall)
37a Extended part 37e Flat part (second flat part)

Claims (7)

The tank body that stores the wash water and
A notch that opens on the tank body side is formed, and a tank lid that covers the upper part of the tank body and a tank lid.
An electric component is arranged on the outside of the notch, and a water supply device that supplies washing water to the tank body and
A washing water tank device including a support member arranged outside the notch and supporting the electric component, and a seal member arranged between the tank body. The tank body includes a first flat surface portion on which the seal member is arranged.
The support member includes a second flat surface portion that is substantially parallel to the first flat surface portion and faces the first flat surface portion with the seal member interposed therebetween.
The washing water tank device according to claim 1, wherein the sealing member is sandwiched between the first flat surface portion and the second flat surface portion. The support member includes an extending portion extending toward the tank body and having the second flat surface portion formed at the tip thereof.
The washing water tank device according to claim 2, wherein the extending portion crushes the sealing member by the second flat surface portion. The washing water tank device according to any one of claims 1 to 3, wherein the sealing member has a plate shape. The washing water tank device according to any one of claims 1 to 4, wherein the support member includes a plate portion facing the wall portion of the tank lid in which the notch portion is formed. The tank lid has a protrusion that projects outward from the wall and is formed around the notch.
The washing water tank device according to claim 5, wherein the support member includes a facing wall portion facing the protruding portion. The tank body includes a water receiving portion formed below the electrical component.
The washing water tank according to claim 6, wherein the protruding portion and the facing wall portion guide water generated between the protruding portion and the facing wall portion toward the water receiving portion. apparatus.