WO2013022101A1

WO2013022101A1 - Flush tank device

Info

Publication number: WO2013022101A1
Application number: PCT/JP2012/070553
Authority: WO
Inventors: 和也島; 雅史深川; 中西　淳; 陽介成田
Original assignee: 株式会社Ｌｉｘｉｌ
Priority date: 2011-08-11
Filing date: 2012-08-10
Publication date: 2013-02-14
Also published as: JP5740712B2; JP2013040452A

Abstract

Provided is a flush tank device configured so that wasteful supply of supplemental water from a water supply device toward a toilet bowl before siphoning begins does not occur and so that an appropriate amount of supplemental water is supplied at the right time to the toilet bowl. A flush tank device comprises a ball tap which has a discharge opening for discharging water into the tank and also has a supplemental water discharge opening for discharging supplemental water to a toilet bowl. The ball tap supplies water into the tank from the discharge opening for discharging water into the tank and also supplies supplemental water from the supplemental water discharge opening to the toilet bowl through an overflow pipe (41). The flush tank device also comprises a water supply delaying mechanism (56) which is provided with: a water pouring section (60) for downwardly pouring the supplemental water flowing from the supplemental water discharge opening; a supplemental water receiving section (62) which receives the supplemental water poured from the water pouring section (60) and which has a water passage hole (64) in the bottom thereof; a plug body (66) which opens and closes the water passage hole (64); and a float (58) which moves vertically in association with the movement of the level of the water within the tank. The water supply delaying mechanism (56) is configured so that the descent of the float (58) causes the plug body (66) to close the water passage hole (64) and the ascent of the float (58) causes the plug body (66) to open the water passage hole (64), allowing the supplemental water poured into the supplemental water receiving section (62) to flow into the overflow pipe (41).

Description

Cleaning tank device

The present invention relates to a washing tank apparatus, and more particularly to a washing tank apparatus having a supply water delay mechanism for supplying makeup water with a delay to the toilet.

Conventionally, a flush tank device for toilet flushing automatically supplies water into the tank when the flush water in the flush tank (hereinafter sometimes simply referred to as a tank) is released by opening the drain valve. A water supply device for filling the tank is provided.

Normally, this water supply device includes a float, a water supply valve that opens and closes in conjunction with the raising and lowering of the float, and a water outlet in the tank that discharges water into the tank. A ball tap that discharges water and closes the water supply valve to stop water supply when the float rises is used.

By the way, in the siphon-type toilet, the flush water in the washing tank is discharged to the toilet bowl at the time of washing the toilet bowl, so that the accumulated water in the bowl of the toilet bowl is discharged to the downstream side at once by siphon action.
Therefore, in this siphon type toilet, it is necessary to supply the replenishing water for storing a certain amount of stored water in the pot again after discharging the stored water.

Therefore, a cleaning tank device for a siphon-type toilet, more specifically, a ball tap as a water supply device provided for this, has a tank water outlet and a makeup water outlet, and the drain valve is opened to open the inside of the cleaning tank. When washing water is discharged, the water supply valve is opened to discharge water into the tank from the tank outlet, and makeup water is discharged from the makeup water outlet and supplied to the drain trap part of the toilet. I am doing so.
The supply of makeup water at this time is specifically from a supplementary water outlet to a conduit such as an overflow pipe provided in the tank, specifically to a conduit for guiding makeup water toward the drain trap of the toilet. This is done by injecting water.

By the way, the water supply device of the conventional washing tank device for siphon-type toilets discharges the makeup water from the makeup water spout at the same time as the water is spouted into the tank immediately after the drain valve is opened. It was.
In other words, makeup water was supplied to the toilet until the siphon occurred in the toilet.
The replenishing water supplied to the toilet bowl at this time is not used as water for reserving the stored water in the toilet bowl after siphoning, and the water supply during this time is wasted.

In addition, since the amount of makeup water supplied differs depending on the amount of water discharged from the washing water during large washing and small washing, if the amount of makeup water supplied is set according to the small washing, However, there is a problem that the supply amount of makeup water becomes excessive, and the excess amount becomes useless makeup water and is lost.

As a prior art to the present invention, the following Patent Document 1 discloses an invention relating to a “water faucet water supply device”, in which an auxiliary water supply pipe is branched and extended from the water supply device, and overflowed. Connect to the pipe and supply makeup water from the water supply device to the toilet through the overflow pipe, and connect a connecting pipe with a branch discharge part to the auxiliary water supply pipe, and part of the water flowing through the auxiliary water supply pipe The point where it was allowed to flow out into the tank, and the branch discharge part had a shape with a reduced diameter toward the tip side, and the flow rate into the tank was adjusted by changing the cutting position and supplied for sealing It is disclosed that the amount of makeup water to be adjusted can be adjusted.
However, the one disclosed in Patent Document 1 cannot solve the problem that makeup water is supplied to the toilet even before the siphon is generated.

Japanese Unexamined Patent Publication No. 2000-248597

The present invention is based on the above situation and eliminates the waste of supplying makeup water from the water supply device to the toilet before the siphon occurs, and supplies the toilet with an appropriate amount of water at an appropriate timing. A cleaning tank device capable of supplying water is provided.

The first aspect of the present invention has a tank spout for discharging water into the cleaning tank and a replenishing water spout for discharging replenishing water to the toilet, and the cleaning water in the cleaning tank is opened by opening the drain valve. The water supply valve is opened to discharge water from the tank outlet and the makeup water outlet, and supply water into the tank and supply water to the toilet through the water conduit in the tank. And a cleaning tank device comprising a water supply device that closes the water supply valve and stops water supply when the water level in the tank rises to a full water position, the cleaning tank device comprises a water supply delay mechanism for makeup water, The water supply delay mechanism receives a makeup water that is poured downward from the makeup water outlet, and a makeup water that is disposed below the water injection section and above the water conduit and is poured from the water injection section. A replenishing water receiving part having a water passage hole at the bottom; A plug body that opens and closes the water passage hole, and a float that moves up and down in conjunction with a water level in the tank, wherein one of the replenishing water receiving portion and the plug body is provided in a fixed state, and the replenishment Provided on the upper side of the replenishment water receiving portion and the plug body so that the other of the water receiving portion and the plug body moves up and down in conjunction with the float, and the water supply delay mechanism The water passage hole is closed by the plug body by lowering, while the water passage hole is opened by raising the float, and the replenishing water injected into the replenishing water receiving portion is supplied to the water guide through the water passage hole. Let it flow into the tube.

In the above aspect, the replenishing water receiving portion may be provided with an outflow guide for guiding the replenishing water received by the replenishing water receiving portion to the outside of the water conduit in a part of the circumferential direction.

In the above aspect, the plug body may be provided on the upper side of the replenishing water receiving portion so as to move up and down in conjunction with the float. The plug body has a conical shape at the top and an inverted conical shape at the bottom. The intermediate portion may have a columnar shape.

The second aspect of the present invention has a tank outlet for discharging water into the washing tank and a makeup water outlet for discharging makeup water to the toilet, and the washing water in the washing tank is opened by opening the drain valve. The water supply valve is opened to discharge water from the tank outlet and the makeup water outlet, and supply water into the tank and supply water to the toilet through the water conduit in the tank. And a cleaning tank device comprising a water supply device that closes the water supply valve and stops water supply when the water level in the tank rises to a full water position, the cleaning tank device comprises a water supply delay mechanism for makeup water, The water supply delay mechanism includes a water injection unit that injects downward makeup water from the makeup water outlet, a float that moves up and down in conjunction with the water level in the tank, and a makeup water that receives makeup water from the water injection unit. The upper end of the water conduit A replenishing water guide that moves up and down in conjunction with the float between an upper position and a lower position than the upper end, and the replenishing water guide is located above the upper end of the water conduit at the water injection section. By receiving the makeup water from the top, the makeup water is caused to flow into the water conduit through the opening at the upper end, and the makeup water is received from the water injection section at a position below the upper end. Water is allowed to flow outside the water conduit and into the tank.

In the above aspect, the float is fitted to the water conduit so as to be movable up and down, and an arm rises from the float, and the makeup water guide may be provided at the upper end of the arm. The makeup water guide is configured to allow the makeup water received at a position below the upper end of the water conduit to flow between the arm and the water conduit, and between the arm and the water conduit. May be provided with a water passage gap through which makeup water that has flowed out of the makeup water guide flows into the tank.

The third aspect of the present invention has a tank outlet for discharging water into the washing tank and a makeup water outlet for discharging makeup water to the toilet, and the washing water in the washing tank is opened by opening the drain valve. The water supply valve is opened to discharge water from the tank outlet and the makeup water outlet, and supply water into the tank and supply water to the toilet through the water conduit in the tank. And a cleaning tank device comprising a water supply device that closes the water supply valve and stops water supply when the water level in the tank rises to a full water position, the cleaning tank device comprises a water supply delay mechanism for makeup water, The water supply delay mechanism includes a float that moves up and down in conjunction with the water level in the tank, and a water injection unit that injects makeup water from the makeup water discharge port downward from the water injection opening, and the water injection unit includes the water injection unit The opening is above the opening at the upper end of the water conduit A state in which the makeup water is poured into the water conduit from the water injection opening, and the water injection opening is located below the opening at the upper end of the water conduit and the makeup water is supplied from the water injection opening to the outside of the water conduit. And it raises / lowers in conjunction with the raising / lowering of the float between the state where water is poured into the tank.

As described above, the cleaning tank device according to the first aspect has a water injection part for pouring the makeup water from the makeup water spout downward, and a makeup water receiver having a water passage hole at the bottom for receiving makeup water from the water injection part. Part, a plug body that opens and closes the water flow hole, and a float that moves up and down in conjunction with the water level in the tank. Is provided with a water supply delaying mechanism that opens the water passage hole and allows the makeup water poured into the makeup water receiving section to flow into the water conduit through the water hole.

In the washing tank device of this aspect, when the washing water in the washing tank is discharged toward the toilet and the water level in the tank drops, the float is lowered and the water passage hole at the bottom of the replenishing water receiving portion is plugged. By closing, the makeup water from the makeup water spout can overflow from the makeup water receiving portion and flow into the outside of the water conduit, that is, into the tank.
That is, it is possible to prevent the replenishment water from being supplied to the toilet before the siphon is raised, and the replenishment water in the meantime from being wasted.

In the washing tank device of this aspect, the drainage valve is closed and the water level in the tank changes from descending to rising, and when the water level rises to the set position, the float is raised in conjunction with the water level until then. The plug that has closed the water passage hole is separated from the water hole, and the water passage hole is opened.
Here, the makeup water poured from the water injection section to the makeup water receiving section can be introduced into the water conduit through the water passage hole and supplied to the toilet as the makeup water.
Then, the supply of makeup water to the toilet is simultaneously terminated when the water level in the tank rises to the full water position and the water supply from the water supply device stops.

That is, the cleaning tank apparatus of the first aspect supplies makeup water to the toilet for a predetermined time in the later stage of water supply to the tank. At this time, all of the makeup water supplied to the toilet bowl is siphoned after siphoning. Therefore, it is possible to solve the problem that the make-up water is lost unnecessarily, and to effectively save water.

Also, since the amount of makeup water supplied to the toilet can be the same regardless of whether it is a large wash or a small wash, by setting the amount of makeup water to match the small wash as in the past, It is also possible to solve the problem that excessive water is supplied to the toilet at the time of large washing, and the excess is lost in vain.

Here, the replenishing water receiving portion can be formed in a container shape such as a bowl shape.
In this embodiment, an overflow pipe can be used as the water conduit. However, it is also possible to use, as a conduit pipe, a pipe that flows out flowing water for freezing prevention toward a toilet in a cold district or the like.
Moreover, in this aspect, the plug body or make-up water receiving portion that moves up and down in conjunction with the float can be moved up and down along the water conduit.
In this case, the plug body or the makeup water receiving portion can be configured integrally with the float.
Further, the float can be fitted to the water conduit so as to be movable up and down.
In this case, an elevating guide that guides the elevating of the float can be provided between the water guide pipe and the float while positioning the float in the rotational direction with respect to the water guide pipe.
Moreover, the raising / lowering guide can be comprised by the protrusion of the up-down direction provided in one of a water conduit and a float, and the groove | channel which is provided in the other and fits slidably to the protrusion. .

Here, the replenishing water receiving part can be provided with an outflow guide for guiding the replenishing water received by the replenishing water receiving part to the outside of the water conduit in a part of the circumferential direction.
By doing so, the water supplied from the water injection part to the water supply receiving part under the condition that the water passage hole is closed by the plug body can be smoothly passed through a part of the discharge guide in the circumferential direction. It can flow out to the outside and into the tank.

In these cases, the plug body is provided on the upper side of the replenishing water receiving portion so as to move up and down in conjunction with the float, and the plug body has a conical shape in the upper part, an inverted conical shape in the lower part, and a middle part. The portion can be formed in a columnar shape.
In this way, the makeup water that has fallen downward from the water injection section flows smoothly and quietly downward along the upper cone portion, middle columnar portion, and lower inverted cone portion of the stopper body. Thus, the makeup water from the water injection section can be smoothly flowed and guided toward the makeup water receiving section.

Also, under the condition that the plug body opens the water passage hole of the makeup water receiving section, the makeup water that has flowed downward through the plug body can be collected toward the water hole, and the makeup water dropped from the water injection section. Can smoothly flow into the water conduit.

Next, the cleaning tank apparatus according to the second aspect is provided with a water supply delay mechanism including a water supply section, a float, and a supply water guide that receives the supply water from the water injection section and guides the flow of the supply water. Is.
Here, the replenishing water guide moves up and down in conjunction with the float between the position above the upper end of the water conduit and the position below the upper end, and supplies water from the water injection section at a position above the upper end of the water conduit. By receiving the replenishment water, the replenishment water flows into the inside of the water conduit through the opening at the upper end, while the replenishment water is received from the water injection portion at a position lower than the upper end, thereby supplying the replenishment water to the outside of the water conduit and in the tank Let it flow.

Even in the washing tank apparatus of this aspect, the problem that the makeup water is lost in vain can be solved by supplying the makeup water to the toilet before the siphon action occurs. In both cases of large washing and small washing, the amount of replenishing water supplied to the toilet can be made constant, and the replenishing water can be supplied to the toilet at an appropriate time and with an appropriate amount of water.

Also in the cleaning tank apparatus of this aspect, an overflow pipe can be used as the water conduit. However, it is also possible to use, as a conduit pipe, a pipe that flows out flowing water for freezing prevention toward a toilet in a cold district or the like.
In this aspect, the replenishing water guide that moves up and down in conjunction with the float can be moved up and down along the water conduit.
In this case, the makeup water guide can be configured integrally with the float.
Further, the float can be fitted to the water conduit so as to be movable up and down.
In this case, an elevating guide that guides the elevating of the float can be provided between the water guide pipe and the float while positioning the float in the rotational direction with respect to the water guide pipe.
Moreover, the raising / lowering guide can be comprised by the protrusion of the up-down direction provided in one of a water conduit and a float, and the groove | channel which is provided in the other and fits slidably to the protrusion. .

Next, in the second aspect, the float is fitted to the water guide pipe so as to be movable up and down, the arm is raised from the float, and a replenishment water guide is provided at the upper end of the arm, and the replenishment is performed. The water guide is configured to allow makeup water received at a position below the upper end of the water conduit to flow between the arm and the water conduit, and between the arm and the water conduit, the water guide flows from the makeup water guide. In this embodiment, the water gap is provided to allow the makeup water to flow into the tank, and according to this aspect, the makeup water guide receives the makeup water from the water injection section at a position below the upper end of the water flow pipe. Sometimes, this can be smoothly introduced into the tank through the water gap.

Next, the cleaning tank apparatus of the third aspect is provided with a water supply delay mechanism for makeup water having a float and a water injection part, and the water injection part is located at a position above the opening at the upper end of the water conduit. In the third mode, the water injection opening is located above the opening at the upper end of the water conduit between the state to be moved and the state to be positioned at the lower position. In the state where the water supply is located, the makeup water is poured into the water conduit through the opening at the upper end of the water conduit from the water injection opening, and in the state where the water inlet is located below the upper end of the water conduit, the makeup water is not supplied. Water is injected into the outside of the water conduit and from the water injection opening.

Therefore, also in the cleaning tank apparatus of this aspect, the problem that the makeup water is supplied toward the toilet before the siphon is generated and the makeup water is consumed wastefully can be solved.
In addition, the makeup water can be supplied to the toilet with a set amount of water in both the large washing and the small washing, and the amount of makeup water supplied can be a constant amount during the large washing and the small washing.

Also in the cleaning tank apparatus of this aspect, an overflow pipe can be used as the water conduit. However, it is also possible to use, as a conduit pipe, a pipe that flows out flowing water for freezing prevention toward a toilet in a cold district or the like.
Moreover, in the washing tank apparatus of this aspect, the water injection section that moves up and down in conjunction with the float can be moved up and down along the water conduit.
In this case, the water injection section can be configured integrally with the float.
Further, the float can be fitted to the water conduit so as to be movable up and down.
In this case, an elevating guide that guides the elevating of the float can be provided between the water guide pipe and the float while positioning the float in the rotational direction with respect to the water guide pipe.
Moreover, the raising / lowering guide can be comprised by the protrusion of the up-down direction provided in one of a water conduit and a float, and the groove | channel which is provided in the other and fits slidably to the protrusion. .

It is the figure which showed the washing tank apparatus of one Embodiment of this invention with the toilet bowl in the external appearance state. It is the figure which showed the structure inside the washing tank of FIG. It is the perspective view which showed the water supply delay mechanism in the same embodiment. It is sectional drawing of the principal part of FIG. It is the perspective view shown in the state which isolate | separated the makeup water receiving part and overflow pipe of FIG. It is the perspective view which showed the float of FIG. 3 with the peripheral part. It is operation | movement explanatory drawing of the water supply delay mechanism in the embodiment. FIG. 8 is an operation explanatory diagram following FIG. 7. It is explanatory drawing of the washing | cleaning operation | movement of a toilet bowl. It is explanatory drawing of the washing | cleaning operation | movement of the toilet bowl following FIG. It is the figure which showed the water supply delay mechanism in other embodiment of this invention. It is the figure which isolate | separated and showed the replenishment water receiving part and float of the water supply delay mechanism of FIG. It is operation | movement explanatory drawing of the water supply delay mechanism in the embodiment. It is the figure which showed the water supply delay mechanism in other embodiment of this invention. It is the figure which showed the water supply delay mechanism in other embodiment of this invention. It is operation | movement explanatory drawing of the water supply delay mechanism in the embodiment. It is the figure which showed the water supply delay mechanism in other embodiment of this invention. It is the figure which showed the water supply delay mechanism in other embodiment of this invention. It is operation | movement explanatory drawing of the water supply delay mechanism in the embodiment.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 denotes a cleaning tank device that discharges cleaning water to the toilet 12 and performs toilet cleaning, and reference numeral 14 denotes a cleaning tank (hereinafter sometimes simply referred to as a tank) that stores cleaning water therein.
A ball tap 16 shown in FIG. 2 is disposed inside the cleaning tank 14 as a water supply device.

In FIG. 2, reference numeral 18 denotes a main body portion of the ball tap 16, and an upper end portion in the drawing of a water supply pipe 20 piped vertically is connected to the main body portion 18 by a connecting tool 22.
Reference numeral 24 denotes a float in the ball tap 16, and the float 24 moves up and down in conjunction with the water level of the cleaning water in the cleaning tank 14.

A water supply valve 26 is built in the main body 18 of the ball tap 16, and the water supply valve 26 and the float 24 are connected by a connecting arm 28.
The linking arm 28 includes a rotating portion 28a that rotates around a shaft 28A, and a shaft portion 28b that protrudes upward from the float 24 and moves up and down integrally with the float 24. The rotating portion 28a and the shaft The portion 28b is engaged with each other with a gap at each end.

From the main body portion 18, a tank water discharge port 30 and a makeup water discharge port 32 protrude from a downstream portion of the water supply valve 26.
The tank outlet 30 discharges water into the tank 14 and supplies water, and the makeup water outlet 32 discharges makeup water toward the toilet 12 and supplies water horizontally. Yes.
Then, one end side of a flexible makeup water pipe 34 is plugged into the makeup water discharge port 32.
The other end side of the makeup water pipe 34 is plugged and connected to a water injection unit 60 described later.
The ball tap 16 automatically opens and closes the water supply valve 26 when the float 24 moves up and down in conjunction with the water level in the tank, and automatically supplies water to the tank 14 and stops supplying water.

The cleaning tank apparatus 10 of this embodiment including the ball tap 16 operates as follows.
FIG. 9I shows a state in which the drain valve (here, flapper valve) 36 in FIG. 2 is closed and the water level of the wash water in the tank 14 is full.
At this time, a set amount of stored water is held in the toilet 12, and the drain trap part T of the toilet 12 is sealed with the stored water.
In this state, when the flapper valve 36 is lifted and opened by the ball chain 38 in FIG. 2, the washing water in the tank 14 is discharged from the discharge port 40 at the bottom of the tank in FIG. 2 and is supplied to the toilet 12 with vigorous water. The
Then, the water supply causes a siphon action in the toilet 12 as shown in FIG. 9 (II), and the stored water in the toilet 12 is discharged to the downstream side of the drain trap T by the siphon action.
At this time, the level of the cleaning water in the tank 14 drops rapidly as shown in FIGS. 9 (I) to (III) due to the discharge of the cleaning water from the discharge port 40, and the water level drops to a certain position. Here, as shown in FIG. 9 (III), the drain valve 36 is closed, and thereafter, the lowering of the water level stops.

On the other hand, in the ball tap 16, when the float 24 descends as the water level in the tank 14 falls, the water supply valve 26 is opened and water is simultaneously discharged from the tank water discharge port 30 and the makeup water discharge port 32.
Then, by supplying water into the tank 14 from the water outlet 30 in the tank, the water level in the tank 14 starts to rise, and the water level in the tank 14 is changed through the states shown in FIGS. 10 (IV), (V), and (VI). When the water level rises to the set full water level shown in FIG. 9 (I), the water supply valve 26 is closed by the float 24 that rises therewith, and water supply into the tank 14 from the tank outlet 30 is stopped here. To do.
During this period, makeup water is also discharged from the makeup water spout 32, and the water supply from the makeup water spout 32 is also stopped when the water level in the tank 14 reaches the full water position and the water supply valve 26 is closed. To do.

In FIG. 2, reference numeral 41 denotes an overflow pipe as a water guide pipe provided in an upright state in the washing tank 14, and the water flowing into the overflow pipe 41 is directly guided into the toilet 12 through the discharge port 40. Specifically, it is guided toward the drain trap part T of the toilet 12.
The overflow pipe 41 is divided into a base 42 fixed to the bottom of the cleaning tank 14 and an upper part 44.

As shown in FIG. 3, the upper portion 44 is provided with an insertion portion 46, and the insertion portion 46 is inserted into the base portion 42, thereby connecting the base portion 42 and the upper portion 44. .
Here, the insertion portion 46 is provided with a claw 48 as shown in FIG. 3, and the claw 48 is engaged with a corresponding engagement portion of the base portion 42, so that the upper portion 44 is removed from the base portion 42. It has been stopped.

A support arm 50 extends from the drain valve 36.
A hook portion 52 is provided at the distal end portion of the support arm 50, and the hook portion 52 is hooked on a shaft portion 54 protruding from the base portion 42 of the overflow pipe 41, so that the drain valve 36 is connected to the shaft portion. It can be rotated around 54.

3 and 4, reference numeral 56 denotes a supply water delay mechanism for delaying the supply of makeup water to the toilet 12. The supply delay mechanism 56 includes a float 58 that has a rectangular shape in plan and side surfaces. , A water injection unit 60, a replenishment water receiving unit 62 that is disposed below the water injection unit 60 and above the overflow pipe 41, and has a mortar-shaped container shape that receives the supply water from the water injection unit 60, And a plug 66 that opens and closes a through-hole 64 provided at the bottom of the portion 62.

As shown in FIG. 6, the float 58 has a circular fitting hole 68 at the center in the longitudinal direction, and is fitted to the overflow pipe 41 in the fitting hole 68 so as to be movable up and down.
On the inner surface of the fitting hole 68, vertical ribs 70 projecting toward the center of the hole are provided at a plurality of locations in the circumferential direction.
These ribs 70 are in contact with the outer surface of the overflow pipe 41 to form a sliding guide when the float 58 is raised and lowered.

As shown in FIG. 5, the upper portion 44 of the overflow pipe 41 is provided with a vertical protrusion 72 over the entire height excluding the insertion portion 46.
On the other hand, as shown in FIG. 6, the float 58 is provided with a protruding portion 76 over the entire height of an arcuate bulged portion 74 that forms the fitting hole 68. A groove 78 that fits into the above-described protrusion 72 of the overflow pipe 41 is formed inside.
The protrusions 72 and the grooves 78 serve as lifting guides that guide the floating elements 58 in a state where the floating elements 58 are positioned in the rotational direction. The floating elements 58 are positioned in the rotational direction by the protrusions 72 and the grooves 78. It moves up and down along the overflow pipe 41 while being held.

In FIG. 5, reference numeral 80 denotes a support portion of the makeup water receiving portion 62, which has a cylindrical shape and is assembled to the upper end portion of the overflow pipe 41 in an externally fitted state.
The support portion 80 is provided with a retaining hole 82 at a predetermined position in the circumferential direction.
On the other hand, a claw 84 is provided at a corresponding position on the upper end portion of the overflow pipe 41, and the support portion 80 is pivoted with respect to the upper end portion of the overflow pipe 41 by elastic engagement between the claw 84 and the engagement hole 82. Positioned in the direction.

The support portion 80 and the makeup water receiving portion 62 are connected by legs 86 at three locations in the circumferential direction. The makeup water receiving portion 62 is further overflowed by the support portion 80 via these legs 86. Supported by a tube 41.
In addition, the protrusion part 88 is provided in the support part 80, and the groove | channel 90 shown in FIG. 4 is formed in the inner side.
The support portion 80 and the makeup water receiving portion 62 are positioned in the rotational direction by fitting the groove 90 with the upper end portion of the protrusion 72 provided in the overflow pipe 41.

From the replenishing water receiving portion 62, support pillars 92 are erected at two locations on the outer periphery, and the water injection portion 60 is provided on a base portion 94 provided at the upper end portion of the support posts 92.
Here, the water injection part 60 has a cylindrical shape, and the other end side of the makeup water pipe 34 is plugged into the water injection part 60 as shown in FIG.
As for this water injection part 60, the upper end and the lower end have comprised the opening shape.
The opening at the lower end forms a water injection opening 60a (see FIG. 15), and the makeup water supplied through the makeup water pipe 34 is directed downward from the water injection opening 60a at the lower end of the water injection section 60, that is, toward the makeup water receiving section 62. Water.

As shown in FIG. 6, a pair of support columns 96 rises upward from the upper surface of the float 58 with a fitting hole 68 therebetween, and the upper ends of the support columns 96 are connected by a connecting portion 98. .
The pair of support columns 96 and the connecting portion 98 form a bridge portion 100 having a gate shape.
In addition, a plug body 66 located on the upper side of the makeup water receiving portion 62 is integrally provided at the central portion of the connecting portion 98 in the bridge portion 100 as shown in FIG.
That is, in this embodiment, the plug body 66 that opens and closes the water passage hole 64 at the bottom of the makeup water receiving portion 62 is provided so as to move up and down integrally with the float 58.
Here, the plug body 66 has an inverted conical portion 102 at the lower portion and a columnar portion 104 at the other portion.

In this embodiment, as shown in FIG. 4, the plug body 66 is located at the center of the makeup water receiving portion 62 in a plan view, and the water injection portion 60 is eccentric from the center of the makeup water receiving portion 62. Located in position.
Accordingly, the makeup water poured downward from the water filling section 60 falls to the makeup water receiving section 62 at a position deviated from the center of the makeup water receiving section 62.

7 and 8 show the operation of the water supply delay mechanism 56 of this example.
Note that (I), (II), and (III) in FIG. 7 correspond to (I), (II), and (III) in FIG. 9, respectively, and (IV) and (V) in FIG. , (VI) correspond to (IV), (V), (VI) in FIG.
FIG. 7I shows a state in which the water level in the tank 14 is in the full water position. At this time, the float 58 is in the raised position, and the plug body 66 is a water passage hole 64 at the bottom of the makeup water receiving portion 62. In this state, the water passage hole 64 is open.
At this time, the stopper 66 hits the base 94 provided with the water injection part 60 and is held there.

Under this state, when the water supply valve 26 of the ball tap 16 is opened by opening the drain valve 36 and subsequently lowering the water level in the tank 14 as shown in FIG. 9 (II), water is discharged from the water outlet 30 in the tank. At the same time, that is, when water is supplied into the tank 14, water is discharged from the makeup water discharge port 32.
Thus, the makeup water spouted from the makeup water spout 32 is poured downward from the water injection section 60. And the water injection from the water injection part 60 is received in the makeup water receiving part 62 below.

At this time, the water passage hole 64 of the replenishing water receiving portion 62 that was initially open is opened by the plug 66 as shown in FIG. 7 (II) due to the lowering of the float 58 due to the rapid lowering of the water level in the tank 14. Since it is closed, the makeup water cannot flow down into the overflow pipe 41 through the water passage hole 64 and is stored in the makeup water receiving portion 62.
Then, the makeup water continuously poured downward from the water injection section 60 overflows from the makeup water receiving section 62 as shown in FIGS. 7 (II) and (III), and flows into the outside of the overflow pipe 41, that is, into the tank 14. .

The respective water discharges from the tank water discharge port 30 and the makeup water discharge port 32 continue to be performed thereafter, but the washing water stored in the tank 14 is discharged as shown in FIG. 9 (III). When the water level drops to a certain position, the drain valve 36 is closed here, and the descent of the water level in the tank 14 stops. After that, the water level in the tank 14 starts to rise, and the water level in the tank 14 gradually rises as shown in FIGS. 10 (IV), (V), and (VI).

Then, when the water level reaches a preset water level and then rises further, the float 58 starts to rise with the water level as shown in FIG. It leaves | separates from the hole 64 and the water flow hole 64 is open | released.

Thus, when the water passage hole 64 is opened, the makeup water injected from the water injection section 60 to the makeup water receiving section 62 flows down through the water passage hole 64, and from the opening 45 at the upper end of the overflow pipe 41. The water flows into the interior of the toilet 12 and is subsequently supplied to the toilet 12.

The float 58 continues to rise with the water level in the tank thereafter (see FIG. 8 (V)), and as shown in FIG. 8 (VI), further rise is prevented by the stopper 66 abutting against the base 94, Stopped there.
Thus, even under the state where the stopper 66 abuts on the base portion 94 and stops rising, the water discharged from the makeup water spout 32 continues to flow into the overflow pipe 41 through the water injection section 60 and the makeup water receiving section 62. The water supply to the toilet 12 is continued.
When the water level in the tank rises to the set full water level, the water supply valve 26 is closed by the rise of the float 24 of the ball tap 16, where water supply and replenishment from the tank spout 30 to the tank 14 are performed. Water supply from the water spout 32 to the toilet 12 is stopped.
In this embodiment, the descending end of the float 58 is defined by contacting the bottom of the replenishing water receiving portion 62 with the plug 66 closing the water passage hole 64 of the replenishing water receiving portion 62.

As described above, in the cleaning tank apparatus 10 of the present embodiment, the cleaning water in the tank 14 is discharged toward the toilet 12, and when the water level in the tank 14 decreases, the float 58 is lowered and refilled by the plug 66. By closing the water passage hole 64 at the bottom of the water receiving portion 62, the makeup water from the makeup water discharge port 32 overflows from the makeup water receiving portion 62 and flows into the outside of the overflow pipe 41, that is, into the tank 14.
That is, it is possible to prevent the replenishment water from being supplied toward the toilet 12 until the siphon is raised, and the replenishment water in the meantime from being wasted.

When the drain valve 36 is closed and the water level in the tank 14 changes from descending to rising, and the water level rises to the set position, the float 58 is raised in conjunction with the water level. The plug 66 that has been closed is moved away from the water hole 64, the water hole 64 is opened, and the replenishment water injected from the water injection part 60 to the replenishment water receiving part 62 is supplied to the overflow pipe through the water passage hole 64. The water is supplied into the toilet 41 and further supplied to the toilet 12.

The washing tank device 10 of this embodiment supplies the makeup water toward the toilet 12 for a predetermined time in the latter period of the water supply to the tank 14, and the makeup water supplied to the toilet 12 at this time All can be used as water for storing water in the toilet 12 after siphoning. Therefore, it is possible to solve the problem of wasteful loss of makeup water and effectively save water.

In addition, since the amount of makeup water supplied to the toilet 12 can be made the same regardless of whether it is a large washing or a small washing, the amount of makeup water can be set according to the small washing as in the past. Further, it is possible to solve the problem that excessive supply water is supplied to the toilet at the time of large washing, and the excess is lost in vain.

11 and 12 show another embodiment of the present invention.
In this example, as shown in FIG. 12, the replenishing water receiving portion 62 is formed in a container shape in which the bottom portion 105 forms a flat plate shape, and a part of the wall portion 107 in the circumferential direction is cut out and replenished there. An outflow guide 109 is provided for guiding makeup water received by the water receiver 62 to the outside of the overflow pipe 41.

Further, an arm 106 that rises from the make-up water receiving portion 62 and has a circular cross-sectional plane is provided integrally with the make-up water receiving portion 62, a base portion 108 is provided at the upper end thereof, and a water injection portion 60 is provided there.
Here, the water injection section 60 is disposed at the same position as the water passage hole 64 in plan view.
On the other hand, the plug 66 has a shape in which an upper portion forms a conical portion 110, a lower portion forms an inverted conical portion 112, and an intermediate portion forms a columnar portion 114.

In this embodiment, the makeup water that has dropped downward from the water injection section 60 first hits the conical section 110 at the top of the plug body 66 located immediately below the water injection section 60, as shown in FIG.
The makeup water hitting the conical portion 110 flows downward along the surface of the conical portion 110 while flowing down the surface of the conical portion 110 and reaches the intermediate columnar portion 114.
The makeup water that has flowed to the columnar portion 114 then flows further downward along the surface of the columnar portion 114 and then reaches the lower inverted conical portion 112.
The makeup water that has flowed to the lower inverted conical portion 112 then flows in the centripetal direction along the surface of the inverted conical portion 112, and finally collects water at the lower end of the inverted conical portion 112.

Thus, as shown in FIG. 13 (II), when the plug 66 is separated upward from the water passage hole 64 of the makeup water receiving portion 62 and the water passage hole 64 is opened, the surface of the plug 66 is removed. The makeup water that has flowed gently to the lower end falls down as it is, and the whole of the makeup water flows into the overflow pipe 41 through the water passage hole 64.
In other words, in this embodiment, the makeup water that has dropped from the water injection section 60 is well collected in the water passage hole 64, passes through it, and flows into the overflow pipe 41.

3 to 6, the plug 66 is replenished from the water injection section 60 in a state where the plug 66 is pulled upward from the water passage hole 64 of the replenishment water receiving section 62, that is, in a state where the water passage hole 64 is opened. When water is poured downward, the makeup water that has fallen downward splashes on the slanting bowl surface of the mortar-shaped makeup water receiving portion 62 and jumps into the overflow pipe 41 from the water passage hole 64. There is a risk of jumping out of the makeup water receiving portion 62, that is, outside the overflow pipe 41.
In this case, the replenishment water that should originally be supplied to the toilet 12 is not supplied to the toilet 12, and the amount of the replenishment water may be smaller than the planned amount.

However, in this embodiment, a part of the makeup water dropped from the water injection part 60 does not enter the overflow pipe 41 from the water passage hole 64 and does not jump into the tank 14 and falls from the water injection part 60. The entire replenished water can be supplied to the toilet 12.
Thereby, the supplementary water of the toilet bowl 12 can be reliably supplied with the planned amount of water.

Note that, as shown in FIG. 13 (I), the makeup water dropped from the water injection section 60 under the condition that the water passage hole 64 is closed by the plug body 66 is gently transmitted along the surface of the plug body 66. Then, it gently moves from the surface of the plug 66 to the bottom of the make-up water receiver 62 and is further guided by the wall 107 of the make-up water receiver 62, and a part of the outflow guide 104 in the circumferential direction. From the overflow pipe 41 and into the tank 14.

In the above embodiment, the makeup water receiving portion 62 is fixed, and the plug 66 is disposed above the makeup water receiving portion 62 so as to be moved up and down integrally with the float 58. FIG. As shown in the figure, the plug body 66 is provided in a fixed state, while a replenishing water receiving portion 62 is arranged on the upper side thereof, integrated with the float 58, and the replenishing water receiving portion 62 is lifted and lowered by the plug body 66. It is also possible to open and close the water passage hole 64 at the bottom of the makeup water receiving portion 62.
In the example shown in FIG. 14, the makeup water receiving portion 62 has the same shape as that shown in FIGS. 3 to 6, and the plug 66 has the same shape as that shown in FIGS. The water receiving portion 62 may have the same shape as that shown in FIGS. 11 and 12, or other shapes.

15 and 16 show still another embodiment of the present invention.
In this embodiment, as shown in FIG. 15, a pair of support columns 92 are raised from a support portion 80 attached to the upper end portion of the overflow pipe 41, and a base portion 94 is provided at the upper end portion. A water injection portion 60 having a cylindrical shape is provided at a position outside the overflow pipe 41 in a plan view, while an arm 115 having an arc shape is raised from the float 58, and a replenishment water guide 116 is provided integrally therewith. .
Here, the replenishing water guide 116 is provided at a position directly below the water injection portion 60, and at the position just below that, the up-and-down movement is performed integrally with the float 58 between a position above the upper end of the overflow pipe 41 and a position below the upper end. To do.

The replenishing water guide 116 has a bottom plate portion 118 and a pair of wall portions 120 that rise in parallel from both ends in the width direction of the bottom plate portion 118, and has a bowl-like shape with an open top surface. A guide flow path for guiding makeup water that has dropped from the water injection section 60 is formed.
Here, the bottom plate portion 118 has an inclined shape that approaches the overflow pipe 41 as it proceeds downward from the upper end.
Therefore, the makeup water guide 116 guides the makeup water dropped downward from the water injection section 60 toward the overflow pipe 41.

In this embodiment, the makeup water guide 116 allows the makeup water from the water injection section 60 received at a position below the upper end of the overflow pipe 41 to flow out between the arm 115 and the overflow pipe 41. .
The arm 115 forms a substantially semi-annular gap around the overflow pipe 41, and the gap allows the makeup water flowing out from the makeup water guide 116 between the overflow pipe 41 and the arm 115 to pass therethrough. A water passage gap 119 is formed to allow water to flow into the tank 14.
In this embodiment, the overflow pipe 41 is provided with a stopper 121 that defines the lower end of the float 58.
Specifically, here, the stopper 121 is provided integrally with the protrusion 72 of the overflow pipe 41.

FIG. 16 shows the operation of the water supply delay mechanism 56 of the makeup water of this embodiment.
FIG. 16I shows a state in which the float 58 has been lowered to the descending end defined by the stopper 121. At this time, the makeup water poured downward from the water injection section 60 is supplied to the makeup water guide 116. After dropping, the liquid flows out between the overflow pipe 41 and the arm 115, and flows through the water passage gap 119 and into the tank 14.
That is, the makeup water poured downward from the water injection section 60 in the state of FIG. 16 (I) is not supplied to the toilet 12 through the overflow pipe 41.

On the other hand, FIG. 16 (II) shows a state in which the float 58 has risen to the rising end as the water level in the tank 14 rises. At this time, the makeup water injected downward from the water injection section 60 is supplied by the makeup water guide 116. It is guided and flows into the overflow pipe 41 from the opening 45 at the upper end of the overflow pipe 41.
Thus, the makeup water that has flowed into the overflow pipe 41 is supplied to the toilet 12.

In the washing tank apparatus 10 of this embodiment, the problem that the makeup water is lost in vain due to the makeup water being supplied toward the toilet 12 before the siphon action occurs can be solved. In addition, the amount of makeup water supplied to the toilet 12 can be made constant in both cases of large washing and small washing, and the makeup water can be supplied to the toilet 12 at an appropriate time and with an appropriate amount of water. it can.

In the embodiment shown in FIGS. 15 and 16, the makeup water guide 116 is configured integrally with the float 58 and moves together with the float 58. However, as shown in FIG. A makeup water guide 116 having a different shape or the same shape as shown in the figure is provided in a state of rotating up and down around a shaft 124 fixed to the overflow pipe 41, and the makeup water guide 116 is overflowed by raising the float 58. As a position above the upper end of the pipe 41, make-up water dropped from the water injection section 60 is caused to flow into the overflow pipe 41 by the make-up water guide 116, while the make-up water guide 116 causes the make-up water guide 116 to flow into the overflow pipe 41. A position below the upper end and inclined in the opposite direction to the above, the makeup water dropped from the water injection section 60 is stored in the tank 14. It is also possible such forms so as to flow into the.

FIG. 18 shows still another embodiment of the present invention.
In this example, instead of the replenishing water guide 116 of FIG. 15, the water injection part 60 itself is integrated with the upper end of the arm 115.
Here, the water injection section 60 is provided in an inclined shape that approaches the overflow pipe 41 as it proceeds downward in the figure.
In this embodiment, the water injection part 60 moves up and down integrally with the float 58 between the state where the water injection opening 60a in the water injection part 60 is located above and below the upper end of the overflow pipe 41. There is.

Thus, when makeup water is poured from the water injection opening 60 a of the water injection section 60 in a state where the water injection opening 60 a is positioned above the upper end of the overflow pipe 41, the makeup water passes through the opening 45 at the upper end of the overflow pipe 41. It flows into the overflow pipe 41 and then is supplied to the toilet 12.

On the other hand, when water is injected from the water injection opening 60 with the water injection opening 60a positioned below the upper end of the overflow pipe 41 as shown in FIG. The water passing gap 119 between 115 and the overflow pipe 41 is passed through and flows into the tank 14.
That is, also in this embodiment, a water passage gap 119 having a substantially semi-annular shape is formed between the arm 115 and the overflow pipe 41.
In this embodiment, the float 58 has an outer peripheral wall 132, an inner peripheral wall 134, and an upper wall 136, and has a shape in which the lower surface is opened (this is the same in each of the above embodiments). A water passage gap 138 following the water passage gap 119 is formed between the inner peripheral wall 134 and the overflow pipe 41.

The upper end of the overflow pipe 41 is provided with a protrusion 126 that is outward in the direction perpendicular to the axis, and the one float 58 is provided with a protrusion 128 that is directed inward in the direction perpendicular to the axis so that the float 58 overflows. The pipe 41 is prevented from coming out upward in the figure.
That is, the protruding ends 126 and 128 define the rising end of the float 58.
On the other hand, a stopper 130 is provided at the upper end of the arm 115, and when the stopper 130 hits the upper end of the overflow pipe 41, the descending end of the float 58 is defined.

Also in this embodiment, it is possible to solve the problem that the makeup water is supplied to the toilet 12 before the siphon is raised and the makeup water is consumed wastefully.
In addition, the makeup water can be supplied to the toilet with a set amount of water in both the large washing and the small washing, and the amount of makeup water supplied can be a constant amount during the large washing and the small washing.

Although the embodiments of the present invention have been described in detail above, these are merely examples, and the present invention can be configured in various forms without departing from the spirit thereof. This application is based on a Japanese patent application filed on August 11, 2011 (application number 2011-176283), the contents of which are incorporated herein by reference.

The present invention is used in a water supply device for a washing tank, and can supply makeup water to a toilet bowl at an appropriate timing and with an appropriate amount of water.

10 Washing tank device 12 Toilet bowl 14 Washing tank 16 Ball tap (water supply device)
30 Water outlet in tank 32 Water supply outlet 36 Drain valve 41 Overflow pipe (conducting pipe)
45 Opening 56 Water supply delay mechanism 58 Float 60 Water injection part 60a Water injection opening 62 Supply water receiving part 64 Water flow hole 66 Plug body 72 Projection 78 Groove 109 Outflow guide 110 Conical part 112 Reverse conical part 114 Columnar part 115 Arm 116

Replenishment Water guide

119, 138 Water gap

Claims

It has a tank outlet for discharging water into the washing tank and a makeup water outlet for discharging makeup water to the toilet, and the water supply valve is opened by releasing the washing water in the washing tank by opening the drain valve. Open and discharge water from the tank outlet and makeup water outlet, supply water into the tank, supply makeup water to the toilet through the water conduit in the tank, and the water level in the tank In the cleaning tank device provided with a water supply device that closes the water supply valve and stops water supply by rising to a full water position,
The cleaning tank device has a water supply delay mechanism for makeup water,
The water supply delay mechanism is
A water injection part for injecting makeup water downward from the makeup water outlet;
A replenishment water receiving portion disposed at the lower side of the water injection portion and above the water conduit and receiving the replenishment water injected from the water injection portion, and having a water passage hole at the bottom;
A plug for opening and closing the water passage hole;
A float that moves up and down in conjunction with the water level in the tank,
One of the makeup water receiving part and the plug body is provided in a fixed state,
The other of the makeup water receiving portion and the plug body is provided on the upper side of the makeup water receiving portion and the plug body so as to move up and down in conjunction with the float,
The water supply delay mechanism closes the water passage hole in the plug body when the float is lowered, opens the water passage hole when the float rises, and supplies the makeup water received in the makeup water receiving portion. Is introduced into the water conduit through the water passage hole.
The cleaning tank apparatus according to claim 1, wherein the replenishing water receiving part is provided with an outflow guide for guiding the replenishing water received by the replenishing water receiving part to the outside of the water conduit at a part of the circumferential direction.
The plug body is provided in a state of moving up and down in conjunction with the float above the makeup water receiving portion,
The cleaning tank apparatus according to claim 1 or 2, wherein the stopper has a shape in which an upper part has a conical shape, a lower part has an inverted conical shape, and an intermediate part has a columnar shape.
It has a tank outlet for discharging water into the washing tank and a makeup water outlet for discharging makeup water to the toilet, and the water supply valve is opened by releasing the washing water in the washing tank by opening the drain valve. Open and discharge water from the tank outlet and makeup water outlet, supply water into the tank, supply makeup water to the toilet through the water conduit in the tank, and the water level in the tank In the cleaning tank device provided with a water supply device that closes the water supply valve and stops water supply by rising to a full water position,
The cleaning tank device has a water supply delay mechanism for makeup water,
The water supply delay mechanism is
A water injection part for injecting makeup water downward from the makeup water outlet;
A float that moves up and down in conjunction with the water level in the tank;
A makeup water guide that receives makeup water from the water injection section, guides the flow of the makeup water, and moves up and down in conjunction with the float between a position above the upper end of the water guide pipe and a position below the top end. And having
The makeup water guide receives makeup water from the water injection portion at a position above the upper end of the water conduit, thereby allowing the makeup water to flow into the interior of the water conduit through the opening at the upper end. In the lower position, the supplementary water is received from the water injection section, so that the supplementary water flows into the outside of the water conduit and into the tank.
The float is fitted to the water conduit so as to be movable up and down, an arm is raised from the float, and the makeup water guide is provided at the upper end of the arm,
The makeup water guide is configured to flow the makeup water received at a position below the upper end of the water conduit between the arm and the water conduit.
The cleaning tank device according to claim 4, wherein a water passage gap is provided between the arm and the water conduit so as to allow the makeup water flowing out from the makeup water guide to flow into the tank.
It has a tank outlet for discharging water into the washing tank and a makeup water outlet for discharging makeup water to the toilet, and the water supply valve is opened by releasing the washing water in the washing tank by opening the drain valve. Open and discharge water from the tank outlet and makeup water outlet, supply water into the tank, supply makeup water to the toilet through the water conduit in the tank, and the water level in the tank In the cleaning tank device provided with a water supply device that closes the water supply valve and stops water supply by rising to a full water position,
The cleaning tank device has a water supply delay mechanism for makeup water,
The water supply delay mechanism is
A float that moves up and down in conjunction with the water level in the tank,
A water injection part for injecting the makeup water from the makeup water outlet downward from the water injection opening,
The water injection portion has a state in which the water injection opening is located above the opening at the upper end of the water conduit, the state in which the makeup water is poured into the water conduit from the water injection opening, and the water injection opening is at the upper end of the water conduit. Positioned below the opening, the make-up water moves up and down in conjunction with the raising and lowering of the float between the water injection opening and the state where water is injected into the outside of the water conduit and into the tank.