JP2020133304A - Flush water tank device and flush toilet bowl - Google Patents

Abstract

To provide a flush water tank device and a flush toilet bowl that can suppress water exposure to electronic components while optimizing the arrangement of solenoid valves and water supply flow paths.SOLUTION: A flush water tank device according to an embodiment includes a flush water tank and a water supply device that supplies water to the flush water tank. The flush water tank has a water storage tank body for storing flush water and a lid body that covers an upper opening of the water storage tank body. The water supply device has a water supply main body that is disposed in the flush water tank and has a water supply passage formed therein, and a solenoid valve that is attached to a valve body part provided on the water supply main body and has an electronic component located outside the flush water tank through an opening formed between the water storage tank body and the lid body to electrically open and close the water supply passage. The lid body is located inside the water storage tank body and has a guide portion that guides the flush water below the electronic component.SELECTED DRAWING: Figure 5

Description

The disclosed embodiments relate to flush water tank devices and flush toilets.

Conventionally, a washing water tank device for storing washing water for washing a toilet bowl has been known. The wash water tank device includes, for example, a wash water tank and a water supply device for supplying water to the wash water tank. The water supply device includes a water supply flow path and a solenoid valve that opens and closes the water supply flow path. The solenoid valve includes a valve body portion and an electronic component such as a motor that drives the valve body portion.

Patent Document 1 discloses a washing water tank device in which a solenoid valve and a water supply flow path are arranged outside the washing water tank.

Japanese Unexamined Patent Publication No. 2014-70415

If the solenoid valve and the water supply flow path can be housed in the washing water tank, the washing water tank device can be further improved, for example, by increasing the volume of the washing water tank. However, if the solenoid valve and the water supply device are simply arranged in the washing water tank, the electronic components are easily exposed to water.

One aspect of the embodiment is made in view of the above, and is a washing water tank device and washing with water that can suppress water ingress of electronic parts while optimizing the arrangement of the solenoid valve and the water supply flow path. The purpose is to provide a toilet bowl.

The wash water tank device according to one aspect of the embodiment includes a wash water tank and a water supply device for supplying water to the wash water tank, and the wash water tank includes a water storage tank main body for storing wash water and the water storage tank body. The water supply device has a lid that covers the upper opening of the water storage tank body, the water supply device is arranged in the washing water tank, a water supply body in which a water supply flow path is formed, and a valve body portion is provided in the water supply body. In addition, an electronic component is arranged outside the washing water tank through an opening formed between the water storage tank main body and the lid body, and has an electromagnetic valve that electrically opens and closes the water supply flow path. The lid is located inside the main body of the water storage tank and has a guide portion for guiding the washing water below the electronic component.

By arranging the water supply body and the valve body of the solenoid valve inside the wash water tank, for example, it is not necessary to secure these installation spaces outside the wash water tank, so the volume of the wash water tank should be increased accordingly. Can be done. Further, by arranging the electronic parts of the solenoid valve outside the washing water tank, it is possible to suppress water exposure of the electronic parts as compared with the case where all the solenoid valves are arranged inside the washing water tank.

Further, an opening for arranging the solenoid valve straddling the inside and the outside of the washing water tank is formed between the water storage tank main body and the lid. As a result, the operator simply inserts the water supply device into the water storage tank body through the upper opening of the water storage tank body, and then attaches the lid to the water storage tank body, and the valve body is arranged in the washing water tank and electronic parts. Can be placed outside the wash water tank. By forming an opening between the water storage tank body and the lid in this way, the water supply when the valve body part of the electromagnetic valve is arranged inside the washing water tank and the electronic parts are arranged outside the washing water tank. The work of assembling the device to the washing water tank can be facilitated.

When an opening is formed between the water storage tank body and the lid, for example, water such as dew condensation generated in the washing water tank leaks out of the washing water tank from the gap between the water storage tank body and the lid. May adhere to electronic parts. On the other hand, in the washing water tank device according to one aspect of the embodiment, a guide portion located inside the water storage tank main body and guiding the washing water below the electronic component is provided on the lid. Therefore, for example, even if the washing water adhering to the inside of the lid body flows down along the lid body, the washing water is guided below the electronic parts by the guide portion, so that the water storage tank body and the lid body It is hard to leak out of the washing water tank from the gap with. Therefore, it is possible to suppress the water exposure of the electronic components arranged outside the washing water tank.

As described above, according to the above-mentioned washing water tank device, the washing water tank device and the flush toilet that can suppress the water immersion of electronic parts while optimizing the arrangement of the electromagnetic valve and the water supply flow path are provided. can do.

Further, in the washing water tank device described above, the guide portion is an inner rib of the lid body that hangs down so as to face the inner wall surface of the water storage tank body.

According to such a configuration, by providing the inner rib, the washing water adhering to the top surface and the inner side wall of the lid can be smoothly dropped into the water storage tank main body. As a result, it is possible to suppress water exposure of electronic components.

Further, in the washing water tank device described above, the inner rib has a lower end below the electronic component.

According to such a configuration, the cleaning water can be reliably guided below the electronic component, so that the water exposure of the electronic component can be suppressed more reliably.

Further, in the washing water tank device described above, the top surface of the lid is horizontal at least at a portion located directly above the valve body.

According to such a configuration, the washing water adhering to the top surface of the lid directly above the valve body portion is less likely to be transmitted to the inner side wall of the lid, and easily falls directly from the top surface into the water storage tank body. Therefore, it is possible to suppress water exposure of electronic components.

Further, in the above-mentioned washing water tank device, the water supply device is provided in the water supply main body, and the flow path opening / closing portion that mechanically opens / closes the water supply flow path and the flow path opening / closing portion are separated from the water supply main body. A detachment prevention member attached to the water supply main body for prevention is provided, and the lid is located in the detachment direction of the detachment prevention member, and the detachment prevention member is moved in the detachment direction. The preventive member comes into contact with the detachment preventive member so that the electronic component side of the preventive member is lowered.

The detachment prevention member may move in the detachment direction due to an increase in pressure in the water supply device, vibration generated by the flow of washing water, or the like. According to this configuration, when the detachment prevention member moves in the pulling direction, the lid comes into contact with the detachment prevention member so that the electronic component side of the detachment prevention member is lowered, so that the cleaning water is scattered on the electronic component side. It becomes difficult. Therefore, it is possible to suppress water exposure of electronic components.

Further, in the washing water tank device described above, the electronic component has a cord insertion portion on the upper surface into which the cord member is inserted downward, and at least a part of the cord member extends downward from the cord insertion portion. To do.

According to such a configuration, since the cord member is inserted downward into the cord insertion portion, the cord member is once extended above the cord insertion portion and then extends below the cord insertion portion. As a result, even if the cleaning water adhering to the outside of the cleaning water tank adheres to the cord member, it can be made difficult to reach the electronic component through the cord member. Therefore, it is possible to suppress water exposure of electronic components.

According to one aspect of the embodiment, it is possible to provide a flush water tank device and a flush toilet that can suppress water exposure of electronic components while optimizing the arrangement of the solenoid valve and the water supply flow path.

FIG. 1 is a schematic side view of a flush toilet according to the first embodiment. FIG. 2 is a schematic perspective view (No. 1) of the washing water tank device according to the first embodiment. FIG. 3 is a schematic perspective view (No. 2) of the washing water tank device according to the first embodiment. FIG. 4 is a schematic enlarged front view (No. 1) of the washing water tank device according to the first embodiment. FIG. 5 is a schematic enlarged cross-sectional view of the washing water tank device according to the first embodiment. FIG. 6 is a schematic enlarged front view (No. 2) of the washing water tank device according to the first embodiment. FIG. 7 is a schematic enlarged cross-sectional view of the washing water tank device according to the second embodiment. FIG. 8 is a schematic enlarged cross-sectional view of the washing water tank device according to the modified example.

Hereinafter, embodiments of the flush water tank device and the flush toilet 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 Embodiment)
<Overall configuration of flush toilet>
First, a flush toilet according to the first embodiment will be described with reference to FIG. FIG. 1 is a schematic side view (partial cross section) of a flush toilet according to the first embodiment. Note that FIG. 1 shows the right side surface of the flush toilet according to the first embodiment. Further, in FIG. 1, for convenience of explanation, a three-dimensional Cartesian coordinate system including a Z-axis whose positive direction is vertically upward is shown. The Cartesian coordinate system may also be shown in other figures.

Further, in the Cartesian coordinate system, the positive direction view of the X axis is defined as the "left side surface", the negative direction view of the X axis is defined as the "right side surface", and the negative direction view of the Y axis is defined as the "front surface". Therefore, in the following description, the X-axis direction may also be referred to as a left-right direction or a horizontal direction.

As shown in FIG. 1, the flush toilet 1 includes a toilet body (hereinafter referred to as a toilet) 2, a bowl portion 3, a headrace 4, and a trap pipe 5. The bowl portion 3 is provided with a rim 6 overhanging inside, which is the center side of the bowl portion 3, and a first spout port 7 for discharging the washing water supplied from the headrace 4. The washing water discharged from the first spout 7 cleans the bowl portion 3 while swirling in the bowl portion 3. The toilet bowl 2 is made of pottery, for example.

The bowl portion 3 includes a water reservoir portion 8 on the lower side portion. In addition, in FIG. 1, the reservoir surface W0 is shown by a alternate long and short dash line. The trap pipeline 5 includes an inlet 5a that opens below the water reservoir 8, an ascending path 5b that extends rearward from the inlet 5a, and a descending path 5c that continuously extends from the ascending path 5b. The lower end of the descending path 5c is connected to an underfloor drainage pipe (not shown) via a drainage socket (not shown).

Further, the bowl portion 3 is provided with a second spout port 9 for discharging the washing water supplied from the headrace 4 at a position on the lower side and above the pool surface W0. The wash water discharged from the second spout port 9 swirls the pooled water in the pool portion 8 in the vertical direction.

The headrace 4 of the toilet bowl 2 is provided with a wash water tank device 10 for storing the wash water supplied to the toilet bowl 2 above. The wash water tank device 10 is usually covered with a casing 11 so that it cannot be seen by the user. The wash water tank 12 of the wash water tank device 10 is provided with a drain port (not shown) that communicates with the headrace 4 of the toilet bowl 2 on the bottom surface. The wash water in the wash water tank 12 is discharged from the drain port to the headrace 4.

The toilet bowl 2 is not limited to the floor-standing type as shown in the figure, but may be a wall-mounted type. Further, in the case of the figure, the flush toilet 1 is described as an example of a so-called flush type in which filth and the like are washed away by the running water action due to the drop of water in the bowl portion 3, but the present invention is not limited to this. The flush toilet 1 may be, for example, a so-called siphon type in which filth or the like in the bowl portion 3 is sucked in by utilizing the siphon action and discharged from the trap pipe 5 at once.

<Configuration of wash water tank device>
Next, the configuration of the washing water tank device according to the first embodiment will be described with reference to FIGS. 2 to 6. 2 and 3 are schematic perspective views of the washing water tank device according to the first embodiment. Note that FIG. 3 shows a state in which the washing water tank device according to the first embodiment is being assembled.

The wash water tank device 10 is provided above the headrace 4 (see FIG. 1) of the toilet bowl 2 and stores wash water to be supplied to the toilet bowl 2.

As shown in FIGS. 2 and 3, the washing water tank device 10 includes a washing water tank 12 and a water supply device 20. The water supply device 20 is arranged in the washing water tank 12, and supplies washing water supplied from an external water supply source (not shown) such as a water pipe to the washing water tank 12. Most of the water supply device 20 is housed in the washing water tank 12, but the electronic component 222 of the solenoid valve 22 (see FIG. 5) is arranged outside the washing water tank 12. .. Details of the water supply device 20 will be described later.

The wash water tank 12 has a water storage tank main body 13 for storing wash water and a lid 14 that covers the upper part of the water storage tank main body 13.

The water storage tank main body 13 has, for example, a water storage tank main body lower portion 13a that forms a space for storing wash water, and a water storage tank main body upper portion 13b that is placed on the water storage tank main body lower portion 13a. An opening is provided in the upper portion 13b of the water storage tank body, and the water supply device 20 or the like can be inserted into the lower portion 13a of the water storage tank body through the opening.

Here, it is assumed that the lower part 13a of the water storage tank body and the upper part 13b of the water storage tank body are formed as separate bodies, but the lower part 13a of the water storage tank body and the upper part 13b of the water storage tank body are integrally formed as one member. May be good.

The lid 14 covers the opening provided in the upper portion 13b of the water storage tank body 13 of the water storage tank body 13. A recess 14a is formed in the lid 14 so as to cut out a part of the side surface. Further, an inner rib 14b is formed at the lower end portion of the lid body 14. Although only a part of the inner rib 14b is shown in FIG. 3, the inner rib 14b is formed so as to surround the water supply device 20 over substantially the entire circumference of the lower end portion of the lid body 14. The broken line shown in FIG. 3 indicates a region D located directly above the valve body portion 221 on the top surface of the lid body 14.

The wash water tank 12 includes an engaging portion 15 that engages the lid 14 with the water storage tank body 13 when the lid 14 is attached to the water storage tank body 13. The engaging portion 15 includes an engaging convex portion 15a provided on the lid body 14 and an engaging receiving portion 15b provided on the water storage tank main body 13. The engaging portion 15 prevents the lid body 14 from falling off from the water storage tank main body 13 and prevents the lid body 14 from rattling.

As shown in FIG. 3, the engaging convex portion 15a projects downward from the outside of the lid body 14. The engaging convex portion 15a is a hook portion whose tip portion is formed in a hook shape. The engaging convex portion 15a is preferably a hook portion having elasticity, a so-called snap fit.

Further, the engaging receiving portion 15b engages with the engaging convex portion 15a. The engagement receiving portion 15b is provided with an opening into which the tip end portion of the engaging convex portion 15a can be fitted. The engagement receiving portion 15b is preferably provided with a snap-fit opening into which the snap-fit can be fitted.

Two engaging portions 15 are provided on the front surface of the washing water tank 12, and two on the rear surface, for a total of four engaging portions 15. The number of engaging portions 15 is not limited to four, and may be any number as long as it can prevent the lid 14 from falling off from the water storage tank main body 13.

The flush toilet 1 is often installed in a narrow space such as a rest room of a general household or a toilet booth arranged side by side in a public toilet space. Then, the maintenance worker of the flush toilet 1 may perform maintenance with the flush water tank device 10 attached to the toilet 2.

According to the engaging portion 15 as described above, the operator can easily attach / detach the lid 14 to / from the water storage tank body 13 even when working in a narrow space where the flush toilet 1 is often installed. can do. Further, since the engaging portion 15 does not require a small part or the like for engaging the lid body 14 and the water storage tank body 13, it is possible to prevent the small part from being accidentally dropped into the toilet bowl 2. it can.

Although a snap-fit structure as shown in the figure is shown as a preferred embodiment, the engaging portion 15 is not limited to this, and for example, the lid body 14 and the water storage tank body 13 are provided with screw holes to screw the mounting screws. It may have a matching structure. In this case, the engaging portion 15 becomes relatively easy to mold.

<Specific configuration of wash water tank>
Next, the configuration of the washing water tank will be described in detail. FIG. 4 is a schematic enlarged front view of the washing water tank device according to the first embodiment. Note that FIG. 4 shows a state in which the water supply device is removed from the washing water tank.

As shown in FIG. 4, the washing water tank 12 has an opening 16 formed between the water storage tank main body 13 and the lid body 14. In the case of the illustrated example, the opening 16 is formed by the upper end surface of the water storage tank main body 13 and the recess 14a of the lid body 14. Specifically, the upper end surface of the water storage tank body 13 corresponds to the lower side of the opening 16, and the recess 14a of the lid 14 corresponds to a side other than the lower side of the opening 16.

Here, the water supply device 20 includes a water supply main body 21 and a solenoid valve 22. The water supply main body 21 includes a water supply flow path 21a through which wash water flows. The solenoid valve 22 includes a valve body portion 221 including a valve body that opens and closes the water supply flow path 21a, and an electronic component 222 such as a motor that drives the valve body in the valve body portion 221.

Of the valve body portion 221 and the electronic component 222, the valve body portion 221 is arranged inside the washing water tank 12. On the other hand, the electronic component 222 is arranged outside the washing water tank 12 via the opening 16 formed between the water storage tank main body 13 and the lid 14.

In the illustrated example, the opening 16 is formed on the front surface and the left side of the washing water tank 12. Further, an engaging portion 15 is formed in the vicinity of the opening 16. That is, the engaging portion 15 is provided in the vicinity of the opening 16 formed between the water storage tank main body 13 and the lid 14 (in other words, in the vicinity of the electronic component 222).

The engaging portion 15 prevents rattling of the water storage tank body 13 and the lid 14 as a whole, and among them, the vicinity of the engaging portion 15 is particularly effective in preventing rattling. There is.

In the illustrated example, since the electronic component 222 is arranged near the opening 16, if a large rattling occurs in the vicinity of the opening 16, the electronic component 222 is likely to be exposed to water.

On the other hand, according to the washing water tank device 10 according to the first embodiment, since the engaging portion 15 is provided in the vicinity of the opening 16, the rattling of the opening 16 can be prevented more effectively. be able to. Therefore, it is possible to suppress the water exposure of the electronic component 222.

<Specific configuration of water supply device>
Next, the configuration of the water supply device will be described in detail. FIG. 5 is a schematic enlarged cross-sectional view of the washing water tank device according to the first embodiment. Note that FIG. 5 is a view of the center of the electronic component 222 in the left-right direction cut along a plane parallel to the Z-axis and the Y-axis and viewed from the left side. As shown in FIG. 5, the water supply device 20 includes a water supply main body 21, a solenoid valve 22, a flow path opening / closing portion 24, and a detachment prevention member 25.

The water supply main body 21 is arranged in the washing water tank 12. The water supply main body 21 is provided inside with a water supply flow path 21a through which the washing water supplied from the water supply source passes. The washing water passing through the water supply flow path 21a flows as shown by an arrow W1 and is supplied to the washing water tank 12.

As described above, the solenoid valve 22 includes a valve body portion 221 and an electronic component 222. Of these, the valve body portion 221 is arranged in the washing water tank 12, and the lid body 14 is located above. The valve body portion 221 electrically opens and closes the water supply flow path 21a by driving the valve body by the electronic component 222.

The electronic component 222 is, for example, a motor operated by electric power. The electronic component 222 is not limited to the motor, but may be a solenoid or the like. Further, the electronic component 222 is not limited to an actuator such as a motor or a solenoid, and may be, for example, a component for communicating with the outside.

The electronic component 222 is arranged outside the washing water tank 12 via an opening 16 formed between the water storage tank main body 13 and the lid body 14.

By arranging the water supply main body 21 and the valve body portion 221 of the electromagnetic valve 22 in the washing water tank 12 in this way, for example, it is not necessary to secure these installation spaces outside the washing water tank 12. The volume of the minute washing water tank 12 can be increased. Further, by arranging the electronic component 222 of the solenoid valve 22 outside the washing water tank 12, the water contact of the electronic component 222 is suppressed as compared with the case where all of the solenoid valve 22 is arranged inside the cleaning water tank 12. be able to.

Further, an opening 16 for arranging the solenoid valve 22 straddling the inside and the outside of the washing water tank 12 is formed between the water storage tank main body 13 and the lid 14. The operator inserts the water supply device 20 into the water storage tank body 13 through the upper opening of the water storage tank body 13, and then attaches the lid 14 to the water storage tank body 13. As a result, the boundary portion between the valve body portion 221 and the electronic component 222 of the solenoid valve 22 is sandwiched by the opening, so that the valve body portion 221 is arranged in the washing water tank 12 and the electronic component 222 is outside the washing water tank 12. It can be in a state of being placed in. By forming the opening 16 between the water storage tank main body 13 and the lid 14 in this way, the valve body portion 221 of the electromagnetic valve 22 is arranged in the washing water tank 12, and the electronic component 222 is placed in the washing water tank. It is possible to facilitate the assembling work of the water supply device 20 to the washing water tank 12 when the water supply device 20 is arranged outside the 12.

The flow path opening / closing unit 24 forms, for example, a so-called ball tap valve device, is attached to the water supply main body 21, and uses the water supply flow path 21a according to the water level of the washing water stored in the water storage tank main body 13 without using electricity. It opens and closes mechanically. In the case of the illustrated example, the water supply device 20 can open and close the water supply flow path 21a by both the flow path opening / closing unit 24 and the solenoid valve 22.

In the case of the illustrated example, the flow path opening / closing portion 24 is arranged above the water supply main body 21. When the flow path opening / closing portion 24 is detached from the water supply device 20, the intermediate portion of the water supply flow path 21a (the portion located above the water supply main body 21) is opened, and the washing water flows out from the upper part of the water supply main body 21. Will end up. Therefore, in order to prevent the flow path opening / closing portion 24 from coming off from the water supply device 20, a detachment prevention member 25 is attached to the water supply main body 21 so as to press the flow path opening / closing portion 24 against the water supply main body 21 from above.

In the case of the illustrated example, the detachment prevention member 25 has a hollow disk shape, that is, a so-called donut shape. The detachment prevention member 25 is attached to the water supply main body 21 by passing the flow path opening / closing portion 24 through the hollow portion, thereby preventing the flow path opening / closing portion 24 from coming off from the water supply device 20.

The detachment prevention member 25 is attached to the water supply main body 21 by rotating it with respect to the water supply main body 21 which is provided with a female screw portion on the inside and a male screw portion is provided on the upper part. The detachment prevention member 25 moves vertically downward as it is attached. Therefore, the detachment prevention member 25 is pulled out vertically upward.

Here, the washing water tank device 10 according to the first embodiment is located inside the water storage tank main body 13 and has a guide portion for guiding the washing water below the electronic component 222. In the first embodiment, the guide portion is an inner rib 14b of a lid 14 that hangs down so as to face the inner wall surface of the water storage tank main body 13.

As shown in FIG. 5, the inner rib 14b is formed so as to fit inside the water storage tank body 13 when the lid 14 is attached to the water storage tank body 13.

When an opening 16 is formed between the water storage tank main body 13 and the lid 14, for example, water such as dew condensation generated in the washing water tank 12 enters the washing water tank through a gap between the water storage tank main body 13 and the lid 14. 12 There is a risk of leaking out and adhering to the electronic component 222. On the other hand, in the washing water tank device 10, an inner rib 14b (guide portion) located inside the water storage tank main body 13 and guiding the washing water below the electronic component 222 is provided on the lid 14. Therefore, for example, even if the cleaning water adhering to the inside of the lid 14 flows down along the lid 14, the cleaning water is guided below the electronic component 222 by the inner rib 14b, so that the water storage tank. It is difficult for the washing water tank 12 to leak out from the gap between the main body 13 and the lid 14. Therefore, it is possible to suppress the water contact of the electronic component 222 arranged outside the washing water tank 12.

Further, by providing the inner rib 14b, the washing water adhering to the top surface and the inner side wall of the lid 14 can be smoothly dropped into the water storage tank main body 13. This also makes it possible to suppress water exposure of the electronic component 222.

Further, the inner rib 14b has a lower end below the electronic component 222. As a result, the cleaning water can be reliably guided below the electronic component 222, so that the water exposure of the electronic component 222 can be suppressed more reliably.

Further, the top surface of the lid body 14 is horizontal at least in a portion located directly above the valve body portion 221.

As a result, the washing water adhering to the top surface of the lid body 14 above the valve body portion 221 is less likely to be transmitted to the inner side wall of the lid body 14, and easily falls directly from the top surface into the water storage tank body 13. Therefore, it is possible to suppress the water exposure of the electronic component 222.

Further, as shown in FIG. 5, the recess 14a (see FIG. 4) is inside the water storage tank body 13 (in the case of drawing) from the upper end surface of the water storage tank body 13 forming an opening 16 (see FIG. 4) together with the recess 14a. Is located on the left side). As a result, even if the cleaning water drops from the recess 14a, the cleaning water tends to fall into the water storage tank body 13.

<Specific configuration of electronic components>
Next, the configuration of the electronic component 222 will be described in detail. FIG. 6 is a schematic enlarged front view of the washing water tank device according to the first embodiment. Note that FIG. 6 shows an enlarged view of the vicinity of the electronic component.

As shown in FIG. 6, the electronic component 222 has a cord insertion portion 22a on the upper surface into which the cord member 26 is inserted downward.

In the case of the illustrated example, the cord member 26 is a power line for supplying power from a power supply unit (not shown) outside the washing water tank device 10. The cord member 26 is not limited to the power line, but may be a communication line or the like for communicating with the outside.

The cord member 26 extends once upward from the cord insertion portion 22a while extending from one end side inserted into the cord insertion portion 22a to the other end side not inserted into the cord insertion portion 22a, and then. It extends below the cord insertion portion 22a.

Then, it is fastened so as to be sandwiched by the cord fastening portion 13c provided below the cord insertion portion 22a, passes through the outside of the washing water tank 12, and extends to the power supply portion. That is, at least a part of the cord member 26 extends downward from the cord insertion portion 22a.

According to such a configuration, since the cord member 26 is inserted downward into the cord insertion portion 22a, the cord member 26 is once extended above the cord insertion portion 22a and then from the cord insertion portion 22a. Also extends downward. As a result, even if the cleaning water adhering to the outside of the cleaning water tank 12 adheres to the cord member 26, it can be made difficult to reach the electronic component 222 through the cord member 26. Therefore, it is possible to suppress the water exposure of the electronic component 222.

In the case of the illustrated example, the cord fastening portion 13c is provided by projecting upward from the water storage tank main body 13 and forming a gap into which the cord member 26 can be inserted from above, but the cord is not limited to this. The fastening portion 13c may be formed in a hook shape and fastened so as to hook the cord member 26.

As described above, the washing water tank device 10 according to the first embodiment is provided inside the water storage tank main body 13, and is a guide portion (here, a lid) for guiding the washing water below the electronic component 222. It has an inner rib 14b) of 14. Therefore, according to the washing water tank device 10 according to the first embodiment, it is possible to suppress the water exposure of the electronic component 222 while optimizing the arrangement of the solenoid valve 22 and the water supply flow path 21a.

(Second Embodiment)
Next, the washing water tank device according to the second embodiment will be described with reference to FIG. 7. FIG. 7 is a schematic enlarged cross-sectional view of the washing water tank device according to the second embodiment. In the following description, the same parts as those already described will be designated by the same reference numerals as those already described, and duplicate description will be omitted.

In FIG. 7, only the washing water tank is shown in cross section. As shown in FIG. 7, in the washing water tank device 10A according to the second embodiment, the lid body 14A has a lid body projecting portion 14Ac protruding downward from the top surface.

The lid projecting portion 14Ac is provided so as to be located above the electronic component 222 side of the detachment prevention member 25, and comes into contact with the detachment prevention member 25 in a state where the detachment prevention member 25 is attached to the upper part of the water supply device 20. It is close enough not to. That is, the lid body 14A is located in the detachment direction of the detachment prevention member 25.

When the detachment prevention member 25 is detached from the water supply main body 21, the flow path opening / closing portion 24 is detached from the water supply device 20. At this time, as described above, the washing water passing through the water supply flow path 21a flows out from the upper part of the water supply main body 21.

The washing water passing through the water supply flow path 21a tries to push the disengagement prevention member 25 toward the upper side of the water supply main body 21, but in the case of the illustrated example, the disengagement prevention member 25 opens and closes the flow path in the hollow portion. Since the part 24 is passed through, it does not come off completely. Therefore, the water does not fall to the water storage tank main body 13 and floats above the water supply main body 21 (abnormal state).

The washing water flowing out from the upper part of the water supply main body 21 hits the lower surface of the detachment prevention member 25 and scatters in various directions. Here, if the cleaning water flowing out from the upper part of the water supply main body 21 is scattered toward the electronic component 222 side, the electronic component 222 may be flooded.

On the other hand, the lid protruding portion 14Ac of the lid 14A according to the second embodiment prevents the detachment prevention member 25 from coming off when the detachment prevention member 25 is in a state of floating above the water supply main body 21 (abnormal state). It contacts the electronic component 222 side of the member 25. That is, the lid body 14A comes into contact with the detachment prevention member 25 so that the electronic component 222 side of the detachment prevention member 25 is lowered while the detachment prevention member 25 is moved in the detachment direction.

The detachment prevention member 25 may move in the detachment direction due to an increase in pressure in the water supply device 20, vibration generated by the flow of washing water, or the like. According to the configuration as described above, when the detachment prevention member 25 moves in the detachment direction, the lid 14A comes into contact with the detachment prevention member 25 so that the electronic component 222 side of the detachment prevention member 25 is lowered. The cleaning water can be guided in the direction of the arrow W2 shown in No. 7, and the cleaning water is less likely to be scattered on the electronic component 222 side. Therefore, it is possible to suppress the water exposure of the electronic component 222.

Next, a modified example of the second embodiment will be described with reference to FIG. FIG. 8 is a schematic enlarged cross-sectional view of the washing water tank device according to the modified example. Note that, in FIG. 8, as in FIG. 7, only the washing water tank is shown in cross section.

As shown in FIG. 8, the lid body 14B of the washing water tank device 10B according to the modified example does not have the lid body protruding portion 14Ac and rises in the direction away from the electronic component 222 of the detachment prevention member 25. The top surface is formed so as to be inclined.

As a result, when the detachment prevention member 25 moves in the detachment direction, the lid 14B comes into contact with the detachment prevention member 25 so that the electronic component 222 side of the detachment prevention member 25 is lowered, so that the arrow W2 shown in FIG. The cleaning water can be guided in the direction, and the cleaning water is less likely to be scattered on the electronic component 222 side. Therefore, it is possible to suppress the water exposure of the electronic component 222.

According to the washing water tank device 10A shown in FIG. 7, since the top surface above the valve body portion 221 is horizontal, it adheres to the top surface above the valve body portion 221 as described above. The wash water easily falls into the water storage tank body 13 as it is. Therefore, it is possible to more effectively suppress the water exposure of the electronic component 222.

Further, according to the washing water tank device 10B shown in FIG. 8, the lid body 14B is a detachment prevention member so that the electronic component 222 side of the detachment prevention member 25 is lowered only by changing the shape of the top surface of the lid body 14B. Since it can come into contact with 25, the manufacturing cost can be suppressed.

As described above, in the second embodiment, the lids 14A and 14B have the detachment prevention member 25 so that the electronic component 222 side of the detachment prevention member 25 is lowered while the detachment prevention member 25 is moved in the detachment direction. Therefore, it becomes difficult for the cleaning water to scatter on the side of the electronic component 222. Therefore, it is possible to suppress the water exposure of the electronic component 222.

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 3 Bowl part 4 Headrace 5 Trap pipeline 5a Inlet 5b Ascending path 5c Downward 6 Rim 7 1st spout 8 Water reservoir 9 2nd spout 10 Washing water tank device 11 Casing 12 Washing water Tank 13 Water storage tank body 13a Water storage tank body lower part 13b Water storage tank body upper part 13c Cord fastening part 14 Lid body 14a Recession 14b Inner rib (guide part)
15 Engagement part 15a Engagement convex part 15b Engagement receiving part 16 Opening part 20 Water supply device 21 Water supply main body 21a Water supply flow path 22 Solenoid valve 221 Valve body part 222 Electronic parts 22a Cord insertion part 24 Flow path opening / closing part 25 Disengagement prevention Member 26 Cord member

Claims (7)

With a wash water tank
A water supply device that supplies water to the washing water tank,
With
The washing water tank
The water storage tank body that stores wash water and
A lid covering the upper opening of the water storage tank body and
Have,
The water supply device
A water supply main body arranged in the washing water tank and having a water supply flow path formed therein.
A valve body portion is provided in the water supply main body, and electronic components are arranged outside the washing water tank through an opening formed between the water storage tank main body and the lid body to electrically supply the water supply flow path. Has a solenoid valve that opens and closes
The lid is
A washing water tank device located inside the water storage tank body and having a guide portion for guiding washing water below the electronic component. The guide unit
The washing water tank device according to claim 1, which is an inner rib of the lid body that hangs down so as to face the inner wall surface of the water storage tank body. The inner rib
The washing water tank device according to claim 2, which has a lower end below the electronic component. The top surface of the lid is
The washing water tank device according to any one of claims 1 to 3, wherein at least a portion located directly above the valve body portion is horizontal. The water supply device
A flow path opening / closing part that is attached to the water supply body and mechanically opens and closes the water supply flow path,
A detachment prevention member attached to the water supply body to prevent the flow path opening / closing portion from detaching from the water supply body.
With
The lid is
Claim 1 4. The washing water tank device according to any one of 4. The electronic component is
It has a cord insertion part on the upper surface into which the cord member is inserted downward.
The cord member
The washing water tank device according to any one of claims 1 to 5, wherein at least a part thereof extends downward from the cord insertion portion. The washing water tank device according to any one of claims 1 to 6.
Toilet bowl and
A flush toilet equipped with.