JP7400503B2 - Water receiving member and cleaning water tank device - Google Patents

Description

The disclosed embodiments relate to a water receiving member and a wash water tank device.

Conventionally, wash water tank devices include an overflow pipe within the wash water tank. When the water level of the flush water in the flush water tank exceeds the height of the upper end of the overflow pipe and exceeds the full water level, the overflow pipe discharges the excess flush water into the toilet bowl body.

Furthermore, in the case of a flushing water tank device, a technique is known in which makeup water is discharged into the above-mentioned overflow pipe in order to form a water seal in the trap section of the toilet bowl body, for example, during or after flushing the toilet bowl body. (For example, see Patent Document 1).

Japanese Patent Application Publication No. 2015-190230

By the way, the cleaning water tank device according to the prior art includes a water receiving part that receives makeup water spouted from the water spouting part and causes it to flow into the overflow pipe. The water receiving portion is provided along the entire outer periphery of the overflow pipe, and is formed integrally with the overflow pipe.

Furthermore, depending on the conditions at the installation site of the toilet bowl body and the flush water tank device, water sealing may easily occur in the toilet bowl body. In such a case, if the water receiver according to the prior art is to be installed in the overflow pipe, the water receiver is formed integrally with the overflow pipe, so the overflow pipe itself needs to be replaced. As described above, in the conventional technology, the water receiver cannot be easily attached to the overflow pipe, and there is room for improvement.

One aspect of the embodiment aims to provide a water receiving member and a wash water tank device that can be easily attached to an overflow pipe and can reduce the influence on the drainage performance of the overflow pipe when attached. .

The water receiving member according to one aspect of the embodiment can be attached to an overflow pipe that is provided in a flush water tank and discharges flush water exceeding the full water level of the flush water tank to the toilet main body. The water receiving member includes a water receiving tray portion that receives make-up water spouted from a water spouting portion provided around the overflow pipe, and allows the received make-up water to flow into the overflow pipe; and a fixing part for fixing, and the water tray part is provided on a part of the outer periphery of the upper end of the overflow pipe.

Thereby, the water receiving member can be easily attached to the overflow pipe, and the influence on the drainage performance of the overflow pipe when attached can be reduced.

That is, since the water receiving member is separate from the overflow pipe and is configured to be attachable to the overflow pipe, it is not possible to retrofit a water receiving part provided around the entire circumference of the overflow pipe as in the prior art, for example. Compared to other cases, the effect on the drainage performance of the overflow pipe is reduced, and it can be easily attached to the overflow pipe.

In addition, since the water receiving tray part of the water receiving member is provided on a part of the outer periphery of the upper end of the overflow pipe, compared to, for example, a case where it is provided over the entire circumference of the upper end of the overflow pipe, The influence on drainage performance can be reduced.

Further, the fixing part includes an outer peripheral connection part that connects the water tray part and the outer peripheral side of the upper end of the overflow pipe, and an inner peripheral connection part that connects the water tray part and the inner peripheral side of the upper end of the overflow pipe. It is characterized by a double structure having a portion.

As a result, the fixing part has a double structure having an outer circumference connection part and an inner circumference connection part, so that it is possible to sandwich the overflow pipe, and thus the water receiving tray part can be reliably fixed to the overflow pipe.

In addition, since the water tray receives make-up water spouted from the water spout, it is subject to downward force from the make-up water and upward force as the water level rises in the wash water tank, but due to the double structure of the fixed part, overflow occurs. Since it is securely fixed to the pipe, it is possible to suppress the occurrence of rattling in the water receiving member even when a downward or upward force is applied.

Further, the outer peripheral connecting portion is formed to be longer than the inner peripheral connecting portion along the circumferential direction of the overflow pipe, and a notch is formed in a region where the corresponding inner peripheral connecting portion does not exist. It is characterized by

Thereby, for example, after parts existing inside or above the overflow pipe are passed through the notch, the water receiving member can be attached to the upper end of the overflow pipe. Therefore, for example, the water receiver member can be attached to the overflow pipe without having to remove parts located inside or above the overflow pipe, thereby further improving the ease of assembling the water receiver member to the overflow pipe. can.

Further, the water receiving tray portion is characterized in that a bottom portion for receiving makeup water is formed so as to be inclined downward toward the center of the overflow pipe.

Thereby, in the bottom part of the water tray part, it is possible to make it easier for the make-up water received at the top surface to flow toward the overflow pipe.

Further, the water tray portion includes a bottom portion for receiving makeup water, a side wall portion erected from a peripheral edge of the bottom portion, and an opening formed in the side wall portion, and the bottom portion includes the bottom portion. It is characterized by being formed so as to extend to the inside of the overflow pipe.

Thereby, the water tray part can make it easier for makeup water received at the bottom part to flow toward the overflow pipe.

Further, the side wall portion is formed to extend inside the outer periphery of the overflow pipe.

As a result, the water receiving member can guide the make-up water, which is once stored in the space surrounded by the side wall, to the inside of the overflow pipe, thereby making it possible for the make-up water to reliably flow into the overflow pipe. Become.

Further, the side wall portion is characterized in that it includes a stepped portion formed at an upper end of the side wall portion and having a lower height than other portions of the side wall portion.

This makes it possible to prevent the water receiving member from interfering with other parts within the cleaning water tank device.

Further, the fixing part is characterized in that it includes a locking part that locks onto the upper end of the overflow pipe.

This makes it possible for the fixing part to position and fix the water tray part to the overflow pipe.

Further, a flushing water tank device according to an aspect of the embodiment includes a flushing water tank for storing flushing water, and a flushing water tank provided in the flushing water tank to direct flushing water exceeding a full water level of the flushing water tank to the toilet main body. The water receiving member includes an overflow pipe for discharging water, a water discharging section provided around the overflow pipe and discharging make-up water, and a water receiving member that can be attached to the overflow pipe, and the water receiving member is provided around the overflow pipe. The water tray includes a water tray portion that receives makeup water spouted from a provided water spouting portion and causes the received makeup water to flow into the overflow pipe, and a fixing portion that fixes the water tray portion to the overflow pipe. The portion is provided on a part of the outer periphery of the upper end of the overflow pipe.

Thereby, in the wash water tank device, the water receiving member can be easily attached to the overflow pipe, and the influence on the drainage performance of the overflow pipe when attached can be reduced.

According to one aspect of the embodiment, the water receiving member can be easily attached to the overflow pipe, and the influence on the drainage performance of the overflow pipe when attached can be reduced.

FIG. 1 is a sectional view showing the configuration of a flush toilet according to an embodiment. FIG. 2 is a perspective view of the wash water tank device according to the embodiment. FIG. 3 is a plan view of the wash water tank device according to the embodiment. FIG. 4 is a sectional view taken along the line IV--IV in FIG. 3. FIG. 5 is an enlarged perspective view showing the vicinity of the second water discharge part and the overflow pipe. FIG. 6 is an exploded perspective view of the water receiving member and the overflow pipe. FIG. 7 is a plan view of the water receiving member. FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7. FIG. 9 is a sectional view taken along the line IX--IX in FIG. 7.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a water receiving member and a washing water tank device disclosed in the present application will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments described below.

<1. Configuration of flush toilet＞
First, the configuration of a flush toilet equipped with a flush water tank device according to an embodiment will be described with reference to FIG. FIG. 1 is a sectional view showing the configuration of a flush toilet according to an embodiment. Note that the figures shown in FIG. 1 and after FIG. 2 are all schematic diagrams.

In FIG. 1, for convenience of explanation, a three-dimensional orthogonal coordinate system including a Z-axis whose positive direction is vertically upward is illustrated. Such Cartesian coordinate systems may also be illustrated in other figures. Furthermore, hereinafter, the positive direction of the X-axis is defined as "left", the negative direction of X-axis is defined as "right", the positive direction of Y-axis is defined as "front", and the negative direction of Y-axis is defined as "back". Therefore, hereinafter, 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. In other words, FIG. 1 is a sectional view in the front-rear direction showing the configuration of the flush toilet according to the embodiment.

As shown in FIG. 1, the flush toilet 1 includes a toilet main body 2, an exterior cover 3, and a flush water tank device 4. The toilet bowl body 2 is installed on the floor of the toilet room, and the exterior cover 3 is installed on the top of the toilet bowl body 2. Further, the wash water tank device 4 is arranged inside the exterior cover 3. Note that the toilet main body 2 is not limited to a floor-standing type, but may be a wall-mounted type. Furthermore, the flush water tank device 4 may be installed at a location away from the toilet main body 2.

The toilet main body 2 includes a bowl portion 21, a water conduit 22, and a drain trap conduit 23. The bowl portion 21 is formed into a bowl shape capable of receiving dirt. The water conduit 22 guides the wash water and make-up water supplied from the wash water tank device 4 to the bowl portion 21 .

For example, the bowl portion 21 is formed with a first water spout 24 and a second water spout 25 for spouting cleaning water supplied from the water conduit 22 . The first spout 24 is formed in the upper part of the bowl part 21. As a result, the cleaning water spouted from the first water spout 24 descends while swirling to clean the bowl portion 21 . The second spout 25 is formed in the lower part of the bowl part 21. Thereby, the wash water spouted from the second water spout 25 generates a swirling flow that swirls the wash water stored in the lower part of the bowl portion 21 in the vertical direction. Note that the number of water spouts in the bowl portion 21 is not limited to the two described above, and may be one or three or more.

The drain trap conduit 23 discharges the waste in the bowl section 21 to a drain pipe (not shown) and constitutes a trap section. Specifically, the drain trap line 23 includes an inlet section 23a, an ascending line 23b, and a descending line 23c.

The inlet section 23a is provided so as to be continuous with the lower part of the bowl section 21, and allows the wash water from the bowl section 21 to flow into the drain trap conduit 23. The ascending conduit 23b is formed to extend obliquely upward from the inlet portion 23a. The descending conduit 23c is formed to extend downward from the ascending conduit 23b. Further, a drain pipe is connected to the lower end of the descending pipe line 23c.

Therefore, when flushing the toilet bowl, the flushing water in the bowl part 21 is drained to the drain pipe via the inlet part 23a of the drain trap pipe 23, the ascending pipe 23b and the descending pipe 23c.

The drain trap conduit 23 is configured as described above, and has a shape in which a predetermined amount of cleaning water can accumulate therein. That is, the drain trap conduit 23 stores cleaning water and functions as a water seal, thereby preventing odor and the like from the drain pipe from flowing back toward the bowl portion 21 side.

The wash water tank device 4 includes a wash water tank 5 (see FIG. 2) that stores wash water supplied from an external water supply source, and the wash water stored in the wash water tank 5 is drained through a drain port 511. It is supplied to the water conduit 22 of the toilet main body 2 through the water. The wash water tank device 4 is covered with an exterior cover 3. Therefore, the flush water tank device 4 is not visible to the user, and the design of the flush toilet 1 can be improved.

In addition, in the flush water tank device 4 according to the present embodiment, in order to reliably form a water seal in the drain trap pipe line 23, in other words, to suppress the occurrence of seal breakage, the cleaning water tank device 4 is designed to After the toilet bowl is flushed, it is configured to supply make-up water to the toilet bowl main body 2, which will be described later.

<2. Configuration of wash water tank device>
Next, the configuration of the wash water tank device 4 will be explained with reference to FIGS. 2 to 4. FIG. 2 is a perspective view of the wash water tank device 4 according to the embodiment. FIG. 3 is an upward plan view of the wash water tank device 4 according to the embodiment. FIG. 4 is a sectional view taken along the line IV--IV in FIG. 3.

As shown in FIGS. 2 to 4, the wash water tank device 4 includes a wash water tank 5, a water supply device 6, a drainage device 7, a rotation device 8, and a water receiving member 9.

The wash water tank 5 includes a tank body 51 and a lid 52. The tank body 51 stores cleaning water supplied from a water supply device 6, which will be described later. A drain port 511 (see FIG. 4) is provided at the bottom of the tank body 51. The lid 52 is provided on the top of the tank body 51 and covers the upper opening of the tank body 51. The lid 52 is provided with an opening 521 that communicates with the inside of the tank body 51.

The water supply device 6 is connected to an external water supply source (not shown) via a water supply pipe L (see FIG. 2), and supplies wash water and makeup water supplied from the water supply source to the lid 52 from above the tank body 51. Water is discharged into the tank body 51 through the opening 521.

For example, the water supply device 6 includes a primary side water supply flow path section 61 (see FIG. 4), a secondary side water supply flow path section 62, an intermediate flow path section 63, a first water discharge section 64, and a second water discharge section 65. Equipped with.

The primary water supply flow path section 61 extends in the vertical direction, and is connected to the water supply pipe L (see FIG. 2) at its lower end. The secondary water supply flow path section 62 is formed in a cylindrical shape with a closed end (downstream end), and extends horizontally (here, in the left-right direction) toward the opening 521 provided in the lid 52. . Specifically, as shown in FIG. 3 etc., the secondary water supply flow path section 62 extends to the vicinity of the drainage device 7 in the wash water tank 5 in plan view, specifically, to the vicinity of the overflow pipe 71 described below. .

The intermediate flow path section 63 is provided between the primary side water supply flow path section 61 and the secondary side water supply flow path section 62, and connects the primary side water supply flow path section 61 and the secondary side water supply flow path section 62. . The intermediate flow path portion 63 includes a solenoid valve device 66 (see FIGS. 2 and 3). The electromagnetic valve device 66 switches between discharging water from the primary side water supply flow path section 61 to the secondary side water supply flow path section 62 and stopping water, depending on the water level in the tank body 51, for example. In addition, a mechanical on-off valve device 67 (see FIGS. 3 and 4) is connected to the intermediate flow path section 63, and a float that moves up and down in conjunction with the water level in the tank body 51 is connected to the primary side water supply flow path section 61. It is configured to be able to switch between discharging water to the secondary water supply flow path section 62 and stopping water. Thereby, the water supply device 6 can supply flush water and the like to the tank body 51 and use the flush toilet 1 even during a power outage or when the solenoid valve device 66 is out of order.

The first water spouting section 64 and the second water spouting section 65 are provided in the secondary water supply flow path section 62. For example, the first water spouting section 64 is provided in the middle of the secondary water supply flow path section 62 at a position facing a portion of the tank body 51 of the wash water tank 5 where wash water is stored. Thereby, the water supply device 6 can supply the wash water from the secondary side water supply channel part 62 to the wash water tank 5 via the first water discharge part 64, as shown by arrow A1 in FIG.

The second water spouting section 65 spouts the flushing water from the secondary water supply channel section 62 as makeup water for forming a water seal in the toilet main body 2 . Note that the second water spouting section 65 is an example of a water spouting section.

For example, the second water discharge section 65 is provided near the tip (downstream end) of the secondary water supply flow path section 62 and around the overflow pipe 71. Here, the position of the second water discharging section 65 and the like will be explained with reference to FIG. 5. FIG. 5 is an enlarged perspective view showing the vicinity of the second water discharge part 65 and the overflow pipe 71.

As shown in FIG. 5, the second water discharge part 65 is provided near the upper part of the overflow pipe 71. As shown in FIG. Specifically, the second water discharging portion 65 is positioned above the water receiving member 9 attached to the overflow pipe 71, more specifically, above the water receiving tray portion 91 (described later) of the water receiving member 9. provided. Note that since various parts, specifically parts of the rotating device 8 (for example, the mounting part 821 (described later)) are arranged directly above the overflow pipe 71, the second water discharging part 65 does not interfere with such parts. It is installed in a position where it does not.

Thereby, the water supply device 6 can discharge make-up water from the second water spouting section 65 to the water receiving member 9 (more precisely, the water receiving tray section 91), as shown by arrow A2 in FIG. Note that the water receiving member 9 ensures that a water seal is formed in the toilet main body 2 by allowing the supplementary water received in the water receiving tray portion 91 to flow into the overflow pipe 71, which will be described later.

Returning to the explanation of FIGS. 2 to 4, the drainage device 7 is arranged inside the tank body 51. The drainage device 7 allows the cleaning water stored in the tank body 51 to flow out into the water conduit 22 (see FIG. 1) by opening the drain port 511, so that the cleaning water flows from the water conduit 22 to the bowl part 21 (see FIG. 1). 1), and the toilet bowl is flushed.

Specifically, the drainage device 7 includes an overflow pipe 71, a drainage valve 72, and a guide 73. The overflow pipe 71 is a cylindrical pipe member extending in the vertical direction, and is provided in the wash water tank 5. The overflow pipe 71 communicates with the drain port 511, and when the water level of the washing water in the tank body 51 exceeds the height position of the upper end 71a of the overflow pipe 71 and exceeds the full water level, the excess water is washed. The water is made to flow out into the water conduit 22 via the overflow pipe 71 and the drain port 511, and is discharged to the toilet main body 2.

The drain valve 72 is provided at the lower end of the overflow pipe 71 and closes the drain port 511. The guide 73 is provided so as to surround the overflow pipe 71, and guides the vertical movement of the overflow pipe 71 by a rotation device 8, which will be described later. The drain valve 72 is provided all around the lower end of the overflow pipe 71, and the overflow pipe 71 and the drain port 511 are in communication even when the drain port 511 is closed.

The rotating device 8 opens and closes the drain valve 72 by moving the overflow pipe 71 up and down. For example, the rotation device 8 includes a drive section 81, a shaft section 82, and a connection member 83.

The drive unit 81 can generate rotational force. As the drive unit 81, for example, a DC motor or the like can be used. The shaft portion 82 projects horizontally from the drive portion 81 and is rotated by the rotational force of the drive portion 81 . Further, a mounting portion 821 is provided at the tip of the shaft portion 82, and a connecting member 83 is attached to the mounting portion 821. Note that the attachment portion 821 is arranged to be located directly above the overflow pipe 71.

The connecting member 83 is a member that connects the shaft portion 82 and the overflow pipe 71. As the connecting member 83, for example, a ball chain or the like can be used. Specifically, one end of the connecting member 83 is attached to the attachment portion 821 at the tip of the shaft portion 82, and the other end is attached to the lower end portion of the overflow pipe 71. As described above, since the attachment portion 821 is located directly above the overflow pipe 71, the connection member 83 is provided so as to pass through the inside of the overflow pipe 71 (see FIG. 5).

In the rotating device 8 configured as described above, when the drive unit 81 rotates the shaft portion 82 so as to pull up the connecting member 83, the overflow pipe 71 and the drainage provided in the overflow pipe 71 The valve 72 rises together with the connecting member 83, and the drain port 511 is opened. Thereby, the cleaning water stored in the tank body 51 is supplied to the water conduit 22 from the drain port 511. The flushing water supplied to the water conduit 22 flows from the water conduit 22 to the bowl portion 21, and the toilet bowl is flushed.

Further, when the drive section 81 rotates the shaft section 82 in a direction to pull down the connection member 83, the overflow pipe 71 and the drain valve 72 descend together with the connection member 83. As a result, the drain port 511 is closed by the drain valve 72, thereby stopping the water supply from the tank body 51 to the water conduit 22.

Note that the rotation device 8 includes a lever 84 for manually rotating the shaft portion 82. Thereby, the user can manually open and close the drain valve 72 by operating the lever 84, for example, during a power outage.

Here, the flushing water tank device 4 according to the present embodiment can form a water seal in the toilet main body 2 (see FIG. 1) using the overflow pipe 71 of the drainage device 7. For example, the flushing water tank device 4 causes makeup water to flow out from the overflow pipe 71 into the water conduit 22 and supplies it to the toilet bowl main body 2 in order to form a water seal in the toilet bowl main body 2 during or after the toilet bowl flushing.

Specifically, the water supply device 6 described above is configured to supply flushing water so that the water level in the tank body 51 exceeds the height position of the upper end 71a of the overflow pipe 71 for a predetermined time after flushing the toilet bowl or after flushing the toilet bowl. I can do it. Thereby, the flushing water (overflowing water) that has exceeded the upper end 71a of the overflow pipe 71 flows out from the overflow pipe 71 to the water conduit 22 as make-up water, and is supplied to the toilet main body 2 to form a water seal.

By the way, depending on the situation at the site where the toilet main body 2 is installed, a lack of water sealing may easily occur in the toilet main body 2. To be more specific, the drainage pipe connected to the toilet main body 2 has different conditions such as a piping route and a piping shape depending on the installation site. Therefore, depending on the situation at the site where the toilet main body 2 is installed, when the toilet is flushed, an excessive amount of washing water may flow from the drain trap pipe 23 of the toilet main body 2 to the drain pipe, and the washing water remaining in the drain trap pipe 23 may As a result, water sealing may become insufficient.

Therefore, the cleaning water tank device 4 according to the present embodiment includes a water receiving member 9, and the water receiving member 9 is attached to the overflow pipe 71. As described above, the water supply device 6 discharges makeup water to the water receiving member 9 and causes the makeup water received by the water receiving member 9 to flow into the overflow pipe 71. As a result, makeup water flows out from the overflow pipe 71 to the water conduit 22 and is supplied to the toilet main body 2 to form a water seal.

As described above, in this embodiment, even if the toilet main body 2 is likely to lack water sealing due to the situation at the site where the toilet main body 2 is installed, for example, the water can be removed from the water receiving member 9 via the overflow pipe 71. The supplementary water supplied by the user can reliably form a water seal in the toilet bowl main body 2.

Further, the water receiving member 9 according to the present embodiment can be attached to the overflow pipe 71 afterward, for example, when the situation at the site where the toilet main body 2 is installed is such that a lack of sealing water in the toilet main body 2 is likely to occur. Good too.

Note that, as described above, in the case of a configuration in which the water receiving member 9 is attached to the overflow pipe 71 afterward, the water supply device 6 does not need to discharge make-up water to the water receiving member 9 before installation. The second water discharging section 65 may not be provided. Therefore, the water supply device 6 according to the present embodiment may be configured such that the secondary water supply channel section 62 having the second water discharging section 65 is detachably attached to the intermediate channel section 63. As a result, for example, when the water receiving member 9 is retrofitted to the overflow pipe 71, the operator can replace the secondary side water supply flow path section 62 with one having the second water discharge section 65 and use the intermediate flow path. 63. This allows makeup water to be spouted from the second water spouting section 65 to the water receiving member 9 that is retrofitted to the overflow pipe 71 .

In the above, an example is given in which the water receiving member 9 is attached to the overflow pipe 71 afterward, but the present invention is not limited to this. For example, the water receiving member 9 may be already attached at the time of shipping the washing water tank device 4 You can do it like this.

<3. Specific configuration of water receiving member>
Hereinafter, the specific configuration of the water receiving member 9 described above will be explained in detail with reference to FIG. 5 and subsequent figures. FIG. 6 is an exploded perspective view of the water receiving member 9 and the overflow pipe 71. FIG. 7 is a plan view of the water receiving member 9. In addition, from FIG. 7 onward, the overflow pipe 71 is shown by a chain double-dashed line for convenience of understanding.

As shown in FIGS. 5 to 7, the water receiving member 9 is separate from the overflow pipe 71 and is configured to be attachable to the overflow pipe 71. Therefore, for example, when the water receiving member 9 is retrofitted as described above, the water receiving member 9 can be easily attached to the overflow pipe 71.

For example, the water receiving member 9 includes a water receiving tray portion 91 and a fixing portion 96. Note that, although the water receiving member 9 is made of resin, for example, it is not limited thereto.

The water tray portion 91 receives makeup water spouted from the second water spouting portion 65 (see FIG. 5) provided around the overflow pipe 71 (for example, above or near the top of the overflow pipe 71). Then, the water tray portion 91 causes the received make-up water to flow into the overflow pipe 71. The fixing part 96 fixes the water tray part 91 to the overflow pipe 71.

Hereinafter, the water tray part 91 and the fixing part 96 will be explained in more detail. First, the water tray portion 91 will be explained. The water tray portion 91 is provided on a part of the outer periphery 71b of the upper end 71a of the overflow pipe 71. In other words, the water tray portion 91 is configured not to be provided over the entire circumference of the upper end 71a of the overflow pipe 71.

Specifically, the water tray portion 91 is provided, for example, in a predetermined range α of the outer periphery 71b of the upper end 71a of the overflow pipe 71 (see FIG. 7). The predetermined range α is set, for example, to a value between 90 degrees and 120 degrees with respect to the axial center C of the overflow pipe 71, and more specifically, to 120 degrees. Here, the larger the predetermined range α is, the larger the water receiving tray portion 91 is, so that it becomes easier to receive makeup water. In exchange, this will affect the drainage performance of the overflow pipe 71, as will be described later. If the predetermined range α is smaller than 90 degrees, it is difficult for the water receiving tray 91 to receive makeup water, and if the predetermined range α is larger than 120 degrees, the drainage performance of the overflow pipe 71 will be affected. Note that although specific numerical values have been given for the predetermined range α in the above, these are just examples and are not limiting, and can be set to any value.

As described above, since the water tray portion 91 is provided on a part of the outer periphery 71b of the upper end 71a of the overflow pipe 71, for example, when attached to the overflow pipe 71, the influence on the drainage performance of the overflow pipe 71 can be reduced. I can do it. Further, since the height of the water pan 91 has little influence on the drainage performance of the overflow pipe 71, the height position of the water pan 91 can be freely selected. Therefore, the degree of freedom in arranging the second water discharging section 65 can be ensured. Thereby, water splashing can also be suppressed by bringing the distance between the water tray part 91 and the second water spouting part 65 closer.

That is, for example, if the water tray portion 91 is provided all around the upper end 71a of the overflow pipe 71, the flow of water exceeding the full water level to the overflow pipe 71 may change, or the upper end 71a of the overflow pipe 71 may The height position of the overflow pipe 71 may change, and as a result, the flush water exceeding the full water level of the flush water tank 5 is discharged to the toilet main body 2, which may affect the drainage performance of the overflow pipe 71. Therefore, the height position of the water tray part 91 cannot be freely selected, and the arrangement of the second water spouting part 65 is also restricted.

By configuring the water tray portion 91 according to the present embodiment as described above, the height position of the portion of the upper end 71a of the overflow tube 71 where the water tray portion 91 is not changed does not change, so that the overflow tube 71 on drainage performance can be reduced.

Furthermore, since the water tray portion 91 is provided on a part of the outer periphery 71b of the overflow pipe 71, the space required for installation is small. Therefore, it becomes possible to attach the water receiving member 9 to the overflow pipe 71, and it becomes easy to deal with it at the installation site.

The water tray portion 91 includes a bottom portion 92, a side wall portion 93, and an opening portion 94. The bottom portion 92 receives makeup water spouted from the second water spouting portion 65 (see FIG. 5). For example, the bottom portion 92 is formed into a substantially rectangular shape in plan view, but the shape is not limited to this.

FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7. As shown in FIG. 8, the bottom surface portion 92 is formed such that the upper surface 92a slopes downward toward the center C of the overflow pipe 71 (see arrow B).

Thereby, in the bottom surface portion 92, for example, makeup water received on the top surface 92a can be made easier to flow toward the overflow pipe 71.

Furthermore, the bottom portion 92 is formed to extend to the inside of the overflow pipe 71. Specifically, when the water receiving member 9 is attached to the overflow pipe 71, the bottom portion 92 is formed to extend beyond the upper end 71a of the overflow pipe 71 to the inside of the overflow pipe 71.

In other words, as shown in FIG. 7, the water tray part 91 has a bottom part 92 located outside (outside) the overflow pipe 71 in a plan view, and a part of the bottom part 92 is located outside the overflow pipe 71 in a plan view. It is formed to be located inside.

In this way, since the bottom part 92 extends to the inside of the overflow pipe 71, the makeup water received at the bottom part 92 can be made to flow more easily toward the overflow pipe 71.

As shown in FIGS. 5 to 7, the side wall portion 93 stands up from the peripheral edge 92b of the bottom portion 92 and is formed to surround the bottom portion 92. The opening 94 is formed in the side wall 93. Specifically, the opening 94 is formed in a portion of the side wall 93 located inside the overflow pipe 71 in plan view (see FIG. 7). That is, the side wall portion 93 is formed so as to partially surround the bottom surface portion 92.

Thereby, the water receiving member 9 can temporarily store makeup water received at the bottom portion 92 in the space surrounded by the side wall portion 93 and allow it to flow into the overflow pipe 71 from the opening portion 94, thereby allowing the water to flow into the overflow pipe 71 from the opening portion 94. It becomes possible to secure an amount of make-up water sufficient for forming the water seal in step 2. In addition, by providing the side wall portion 93 of the water receiving member 9, it is possible to suppress a decrease in the makeup water due to splashing of the makeup water received on the bottom surface portion 92, and the amount of makeup water sufficient to form a water seal can be suppressed. can be ensured.

Further, as clearly shown in FIG. 7, the side wall portion 93 is formed to extend inside the outer periphery 71b of the overflow pipe 71. Specifically, the side wall portion 93 is formed such that the end portion 93a on the side of the opening 94 is located inside the outer periphery 71b of the overflow pipe 71 in plan view.

Thereby, the water receiving member 9 can guide the make-up water once stored in the space surrounded by the side wall portion 93 to the inside of the overflow pipe 71, thereby ensuring that the make-up water flows into the overflow pipe 71. becomes possible.

Further, the side wall portion 93 includes a first step portion 931 and a second step portion 932. Note that the first step portion 931 and the second step portion 932 are examples of step portions.

The first step portion 931 and the second step portion 932 are formed at the upper end of the side wall portion 93, and are lower in height than other portions of the side wall portion 93 (for example, the portion indicated by reference numeral 933 in FIG. 6). is formed. That is, the side wall portion 93 is formed so that its height is partially reduced by the first step portion 931 and the second step portion 932.

As shown in FIG. 7, the first stepped portion 931 is formed in the side wall portion 93 at a position that overlaps with the secondary water supply flow path portion 62 of the water supply device 6 in plan view, for example. The second step portion 932 is formed in the side wall portion 93 at a position overlapping the shaft portion 82 of the rotation device 8 in plan view, for example. In addition, in FIG. 7, the secondary side water supply flow path part 62 and the shaft part 82 are shown by the broken line for convenience of understanding.

As a result, in this embodiment, the water receiving member 9 is connected to other parts in the wash water tank device 4 (for example, the secondary water supply flow path section 62 of the water supply device 6 and the shaft section 82 of the rotation device 8). ) can be suppressed from interfering with

To explain in detail, the overflow pipe 71 opens and closes the drain valve 72 (see FIG. 4) by moving up and down during toilet flushing, as described above. Therefore, the water receiving member 9 attached to the overflow pipe 71 also moves up and down along with the overflow pipe 71. Here, other parts (for example, the secondary water supply channel part 62 and the shaft part 82) may be located above the water receiving member 9, more precisely above the side wall part 93 of the water receiving tray part 91. . Therefore, for example, when the water receiving member 9 rises, the upper end of the side wall portion 93 may interfere with other components.

In the water receiving member 9 according to the present embodiment, as described above, since the first step portion 931 and the second step portion 932 are provided at positions corresponding to other parts, when the water receiving member 9 is raised, the side wall portion The upper end of the side wall portion 93 can be prevented from interfering with other components, and the height of the side wall portion 93 can be freely designed to a height that can suppress the reduction of replenishment water due to water splashing.

Next, the fixing portion 96 will be explained. As shown in FIG. 8, the fixing portion 96 has a double structure including an outer circumferential connecting portion 97 and an inner circumferential connecting portion 98.

As shown in FIGS. 6 to 8, the outer circumferential connection portion 97 is located on the outer circumference 71b side of the overflow pipe 71 and is formed to curve along the outer circumference 71b. In other words, the outer peripheral connection portion 97 is formed to have a substantially annular shape.

Further, a predetermined portion of the outer peripheral connection portion 97 located below the water tray portion 91 is formed to extend downward from the bottom surface portion 92 of the water tray portion 91, as shown in FIG. Specifically, a predetermined portion of the outer circumferential connection portion 97 is formed to extend downward from a position corresponding to the vicinity above the outer circumference 71b of the overflow pipe 71 on the bottom surface portion 92.

The outer circumferential connecting portion 97 configured as described above connects the water receiving tray portion 91 and the outer circumferential 71b side of the upper end 71a of the overflow tube 71 when the water receiving member 9 is attached to the overflow pipe 71.

The inner circumference connecting portion 98 is located on the inner circumference 71c side of the overflow pipe 71 and is formed to curve along the inner circumference 71c. Further, the inner peripheral connecting portion 98 is formed so as to be located only below the water receiving tray portion 91. Specifically, the inner circumferential connection portion 98 is formed, for example, in a predetermined range α (see FIG. 7) of the inner circumference 71c of the overflow pipe 71, where the water receiving tray portion 91 is provided.

For example, the inner peripheral connecting portion 98 is formed to extend downward from the bottom surface portion 92 of the water tray portion 91, as shown in FIG. Specifically, the inner circumferential connection portion 98 is formed to extend downward from a position corresponding to the vicinity above the inner circumference 71c of the overflow pipe 71 in the bottom surface portion 92.

The inner peripheral connecting portion 98 configured as described above connects the water receiving tray portion 91 and the inner peripheral 71c side of the upper end 71a of the overflow pipe 71 when the water receiving member 9 is attached to the overflow pipe 71. .

Therefore, the fixing part 96 has a double structure having an outer peripheral connecting part 97 and an inner peripheral connecting part 98, so that it is possible to sandwich the overflow pipe 71, so that the water receiving tray part 91 can be securely fixed to the overflow pipe 71. I can do it.

In addition, the water receiving tray part 91 receives the makeup water spouted from the second water spouting part 65 (see FIG. 5) as described above, so the water receiving tray part 91 also receives the downward force caused by the makeup water and the upward force caused by the rise in the water level of the wash water tank 5. Force acts. In the fixing part 96 according to the present embodiment, the part corresponding to the water tray part 91 has a double structure and is securely fixed to the overflow pipe 71, so that when a downward or upward force is applied. Even in this case, it is possible to suppress the occurrence of wobbling in the water receiving member 9.

Furthermore, since the outer circumferential connecting portion 97 and the inner circumferential connecting portion 98 of the fixing portion 96 are formed to extend downward from the water receiving tray portion 91, they do not guide the water receiving member 9 with respect to the overflow pipe 71. The water receiving member 9 can be easily attached from above, and the ease of assembling the water receiving member 9 can be improved.

Further, as shown in FIG. 8, the length of the inner circumferential connecting portion 98 is set to be shorter than the length of the outer circumferential connecting portion 97 by a predetermined distance D1. Specifically, the lower end 98a of the inner peripheral connecting portion 98 is formed to be located a predetermined distance D1 above the lower end 97a of the outer peripheral connecting portion 97.

Thereby, in the water receiving member 9 according to the present embodiment, for example, the strength against the force acting on the inner peripheral connecting portion 98 can be improved. That is, for example, if the water receiver member 9 moves when it is assembled to the overflow pipe 71, unnecessary force may be applied to the inner circumferential connection portion 98 from the inner circumference 71c of the overflow pipe 71. Further, even after the water receiving member 9 is attached, an unexpected large force may be generated from the outside against the inner peripheral connecting portion 98. In such a case, if the inner peripheral connecting part 98 is relatively long, the inner peripheral connecting part 98 may be deformed or chipped. In this case, the fragments of the inner circumferential connection portion 98 may clog the inside of the overflow pipe 71 or the drain port 511, which may affect the drainage performance. Since the inner peripheral connecting portion 98 according to the present embodiment is made shorter than the length of the outer peripheral connecting portion 97, the strength against unnecessary forces acting on the inner peripheral connecting portion 98 is improved, for example. be able to.

Further, as shown in FIG. 7, the outer peripheral connecting portion 97 is formed to be longer than the inner peripheral connecting portion 98 along the circumferential direction of the overflow pipe 71. Specifically, the outer peripheral connecting part 97 is formed to be longer in the circumferential direction of the overflow pipe 71 than the inner peripheral connecting part 98, which is formed by a predetermined range α with respect to the axial center C of the overflow pipe 71.

Therefore, the outer peripheral connecting portion 97 has a region where the corresponding inner peripheral connecting portion 98 does not exist, in other words, a region outside the predetermined range α and which does not have a double structure. A notch 971 is formed in the outer circumferential connecting portion 97 in a region where the corresponding inner circumferential connecting portion 98 does not exist. That is, the outer circumferential connection portion 97 is formed so that a portion thereof is cut out and has a substantially C-shape when viewed from above.

Thereby, the ease of assembling the water receiving member 9 to the overflow pipe 71 can be further improved. Further, since the area where the inner circumferential connecting portion 98 exists can be made smaller, the risk of damage to the inner circumferential connecting portion 98 can be reduced.

Specifically, for example, inside the overflow pipe 71, as described above, there is a connecting member 83 such as a chain, and above the overflow pipe 71 there is a shaft part 82 of the rotating device 8, etc. exists (see Figure 5). Therefore, for example, if the water receiver member 9 without the notch 971 is to be attached to the overflow pipe 71 afterward, it would be necessary to remove the connecting member 83, the shaft part 82, etc. There is a risk that the ease of assembly may deteriorate.

In the water receiving member 9 according to the present embodiment, since the notch 971 is formed in the outer peripheral connecting portion 97, for example, after the connecting member 83 is passed through the notch 971, the upper end of the overflow pipe 71 is 71a from above. That is, in this embodiment, the water receiver member 9 can be attached to the overflow pipe 71 without once removing the connecting member 83, the shaft portion 82, etc. It is possible to further improve the ease of assembly.

The fixing part 96 further includes a locking part 99. The locking part 99 can position and fix the water tray part 91 to the overflow pipe 71 by locking it to the upper end 71a of the overflow pipe 71.

A plurality of locking portions 99 (for example, three locking portions) are formed at appropriate positions on the upper end 97b of the outer circumferential connection portion 97. For example, the locking portion 99 is located at the upper end 97b of the outer circumferential connecting portion 97 in a region where the corresponding inner circumferential connecting portion 98 does not exist, in other words, in a range other than the predetermined range α and not having a double structure. It is formed.

As an example, as shown in FIG. 7, the locking portions 99 are arranged at a predetermined angle ( For example, the upper ends 97b are spaced apart by 180 degrees. Note that the position where the locking portion 99 is formed is not limited to the above. Furthermore, the number of locking portions 99 is not limited to a plurality of pieces, and may be one.

Before continuing the description of the locking portion 99, the shape of the upper end 71a of the overflow pipe 71 will be described here. As shown in FIG. 6, a plurality (for example, four) of recesses 71d are formed in the upper end 71a of the overflow pipe 71.

The recessed portion 71d is a concave portion that opens toward the outside of the overflow pipe 71 in plan view. A locking portion 99 is locked in the recess 71d as described later. Therefore, for example, when attaching the water tray portion 91 to the overflow pipe 71, the operator places the locking portion 99 of the water tray member 9 in the recess 71d of the overflow pipe 71, thereby attaching the water tray portion 91 to the overflow pipe 71. It can be positioned against.

In addition, although the example of FIG. 6 showed the example in which the number of recessed parts 71d is four, this is an illustration and is not limited. That is, the number of recesses 71d can be set to any desired number, and for example, the number of recesses 71d may be the same as the number of locking portions 99, or may be one.

The description of the locking portion 99 will be continued. FIG. 9 is a sectional view taken along the line IX--IX in FIG. 7, and specifically is an enlarged view showing the vicinity of the locking portion 99 of the water receiving member 9.

As shown in FIG. 9, the locking portion 99 includes a support portion 99a and a claw portion 99b. The support column 99a is erected upward from the upper end 97b of the outer peripheral connection section 97. Further, the height of the support column 99a is set to a height such that, for example, when the water receiving member 9 is assembled to the overflow pipe 71, the upper end 71a of the overflow pipe 71 is exposed in a side view.

The claw portion 99b is formed in a shape that can be engaged with the upper end 71a (more precisely, the recess 71d (see FIG. 6)) of the overflow pipe 71. For example, the claw portion 99b is formed in a shape (eg, approximately L-shape) that extends from the upper end of the support portion 99a toward the inside of the overflow pipe 71 and then extends downward.

By being configured as described above, the locking portion 99 can position and fix the water tray portion 91 to the overflow pipe 71.

Further, since the support portion 99a is configured as described above, when the water receiving member 9 is assembled to the overflow pipe 71, the upper end 71a of the overflow pipe 71 is exposed in a side view. As a result, even when the water receiving member 9 according to the present embodiment is attached to the overflow pipe 71, the height position of the upper end 71a of the overflow pipe 71 does not change, so that the influence on the drainage performance of the overflow pipe 71 is further reduced. can do.

As described above, the water receiving member 9 according to the embodiment can be attached to the overflow pipe 71 that is provided in the flush water tank 5 and discharges flush water exceeding the full water level of the flush water tank 5 to the toilet main body 2. be. The water receiving member 9 includes a water receiving tray portion 91 and a fixing portion 96. The water tray portion 91 receives makeup water spouted from the second water spouting portion 65 provided around the overflow pipe 71 and causes the received makeup water to flow into the overflow pipe 71. The fixing part 96 fixes the water tray part 91 to the overflow pipe 71. Further, the water tray portion 91 is provided on a part of the outer periphery 71b of the upper end 71a of the overflow pipe 71. Thereby, the water receiving member 9 can be easily attached to the overflow pipe 71, and the influence on the drainage performance of the overflow pipe 71 when attached can be reduced.

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

4 Washing water tank device 5 Washing water tank 65 Second water discharge part 71 Overflow pipe 9 Water receiving member 91 Water receiving tray part 92 Bottom part 93 Side wall part 931 First step part 932 Second step part 94 Opening part 96 Fixing part 97 Outer circumference connection Part 971 Notch part 98 Inner peripheral connection part 99 Locking part

Claims (9)

A water receiving member that can be attached to an overflow pipe that is provided in a flush water tank and discharges flush water exceeding the full water level of the flush water tank to the toilet main body,
a water tray part provided on a part of the outer periphery of the upper end of the overflow pipe, receiving makeup water spouted from a water spouting part provided around the overflow pipe, and causing the received makeup water to flow into the overflow pipe; ,
and a fixing part for fixing the water tray part to the overflow pipe,
The water tray section is
a bottom part that receives makeup water;
a side wall portion erected from a peripheral edge of the bottom portion;
an opening formed in the side wall;
Equipped with
The bottom part is
be formed to extend to the inside of the overflow pipe;
A water receiving member characterized by: The side wall portion is
The water receiving member according to claim 1, wherein the water receiving member is formed to extend inside the outer periphery of the overflow pipe. The side wall portion is
The water receiving member according to claim 1 or 2 , further comprising a step portion formed at an upper end of the side wall portion and having a lower height than other portions of the side wall portion. A water receiving member that can be attached to an overflow pipe that is provided in a flush water tank and discharges flush water exceeding the full water level of the flush water tank to the toilet main body,
a water tray part provided on a part of the outer periphery of the upper end of the overflow pipe, receiving makeup water spouted from a water spouting part provided around the overflow pipe, and causing the received makeup water to flow into the overflow pipe; ,
and a fixing part for fixing the water tray part to the overflow pipe,
The fixed part is
A locking part that locks onto the upper end of the overflow pipe
A water receiving member comprising : The fixed part is
an outer peripheral connection part that connects the water tray part and the outer peripheral side of the upper end of the overflow pipe;
The water receptacle according to any one of claims 1 to 4, characterized in that the water receptacle has a double structure, comprising: an inner circumferential connection portion that connects the water receptacle portion and an inner circumferential side of the upper end of the overflow pipe. Element. The outer peripheral connection portion is
A notch is formed along the circumferential direction of the overflow pipe to be longer than the inner circumferential connecting portion, and a notch is formed in a region where the corresponding inner circumferential connecting portion does not exist. 5. The water receiving member according to 5 . The water tray section is
The water receiving member according to any one of claims 1 to 6 , wherein the bottom portion for receiving makeup water is formed to slope downward toward the center of the overflow pipe. A wash water tank that stores wash water;
an overflow pipe provided in the flush water tank and for discharging flush water exceeding the full water level of the flush water tank to the toilet main body;
a water spouting part provided around the overflow pipe and spouting makeup water;
a water receiving member attachable to the overflow pipe;
The water receiving member is
a water tray part provided on a part of the outer periphery of the upper end of the overflow pipe, receiving makeup water spouted from a water spouting part provided around the overflow pipe, and causing the received makeup water to flow into the overflow pipe; ,
and a fixing part for fixing the water tray part to the overflow pipe,
The water tray part is
a bottom part that receives makeup water;
a side wall portion erected from a peripheral edge of the bottom portion;
an opening formed in the side wall;
Equipped with
The bottom part is
be formed to extend to the inside of the overflow pipe;
A cleaning water tank device featuring: A wash water tank that stores wash water;
an overflow pipe provided in the flush water tank and for discharging flush water exceeding the full water level of the flush water tank to the toilet main body;
a water spouting part provided around the overflow pipe and spouting makeup water;
a water receiving member attachable to the overflow pipe;
The water receiving member is
a water tray part provided on a part of the outer periphery of the upper end of the overflow pipe, receiving makeup water spouted from a water spouting part provided around the overflow pipe, and causing the received makeup water to flow into the overflow pipe; ,
and a fixing part for fixing the water tray part to the overflow pipe,
The fixed part is
A locking part that locks onto the upper end of the overflow pipe
A washing water tank device comprising :

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