JP3166348B2 - Toilet bowl washing tank device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet flushing tank device for draining (supplying) flush water to a so-called siphon jet flush toilet flushing by a siphon action.

[0002]

2. Description of the Related Art In this type of toilet flush tank device, when a drain valve is separated from a drain valve seat by rotating a lever handle by hand, a drain valve opens and a flush toilet (to be described later, a flush toilet) is used. Flush water is drained to the tank, and in response to the drainage, the float moves down with the drainage from the water storage tank (hereinafter referred to as a tank) to start supplying water from the ball tap into the tank. It has become.

[0003]

In the structure in which water is supplied from the ball tap into the tank almost simultaneously with the drainage of the washing water from the tank, the seating time of the drain valve body is delayed due to the water supplied to the tank. The above water is drained to the toilet as washing water. In addition, since the jet stream is unnecessarily jetted from the injection hole from the beginning of the flow of the ball washing water discharged from the rim water passage, the siphon effect cannot be efficiently generated using a small amount of washing water. Consume washing water.

[0004] The present invention has been made in view of the conventional circumstances, and a technical problem thereof is to separate the supply path of the washing water to the rim waterway and the jet waterway separated in the toilet and to separate the water supply path from the jet waterway. An object of the present invention is to provide a toilet flush tank device in which the siphon action is efficiently generated with a small flush water amount by delaying the flush water drain start time from the flush water drain start time to the rim water passage.

[0005]

The technical measures taken to achieve the above-mentioned technical object include a flush toilet having a rim water passage and a jet water passage separated from each other at an inlet,
A water storage tank having a lever handle interlocking drain valve at the bottom for communicating with the rim water passage of the flush toilet, one end connected to the water supply through a constant flow valve, and the other end connected to the jet water conduit and the water storage tank And a water supply flow path connected to the water supply flow path, which is provided in the water supply flow path, detects a predetermined falling area of the water storage tank, opens the valve to start water supply to the water supply flow path, and starts a fixed water storage area of the water storage tank. And a delay-opening type water supply valve means for continuing to open the valve until the water is sensed, and a water supply flow path downstream of the water supply valve means, which is interlocked with the opening and closing movement of the lever handle interlocking type drain valve. In addition, the gist of the present invention is to provide a switching valve for switching the water supply channel between the jet headrace channel side and the water storage tank side. In addition, the water supply valve means of claim 1 opens the valve when the fixed amount drainage area of the water storage tank is detected, starts water supply to the water supply flow path, and detects the fixed amount water supply area of the water storage tank until the water supply valve means detects the fixed amount water supply area. It is further effective that the water supply to the road is controlled to be continued and the drain valve is of a delayed valve closing type that is closed after a certain amount of water reaches the fixed amount drainage area of the water storage tank.

[0006]

According to the above technical means, the following effects are obtained. (Claim 1) The drain valve is opened by the rotation operation of the lever handle, and the drainage of the washing water is started from the inside of the tank to the rim water passage, and at the same time, the water supply flow path is switched to the jet head water passage side. When the water level in the inside reaches a predetermined falling area, the delay-opening type water supply valve means opens to start supplying water to the water supply flow path, and drains tap water to the jet conduit as washing water. That is, the start time of the wash water to the jet headrace,
It is started with a delay corresponding to the time spent for lowering the water level in the tank from the fixed water storage area to the predetermined lowering area from the start time of drainage of the washing water to the rim water channel. Further, the supply of the washing water to the jet headrace is continued until the drain valve closes, that is, before water supply in the tank starts. Therefore, before the ball washing water discharged from the rim water passage reaches the sealing of the trap portion, the jet stream is not wastefully ejected,
It is possible to eject the jet stream after the wastewater is rotated by the washing water flowing down the ball and the siphon action is likely to occur.

(Claim 2) The drainage of the cleaning water to the jet headrace is started after the drainage of the washwater to the rim waterway is completed. Therefore, the jet flow is ejected after the waste is subjected to a more effective rotating action by the continuous impact force of the entire amount of the rim washing water (washing water drained to the rim water passage) falling into the sealing water of the trap portion. Make it possible.

[0008]

As described above, the present invention has the following advantages. (Claim 1) Wash water is supplied from a tank to a rim water passage of a toilet bowl, and washing water is supplied from a tap water to a jet conduit of the toilet bowl, and drainage of the wash water to the jet conduit is performed. The jet flow is connected to the water supply so that the start time is delayed from the start time of the drainage of the wash water to the rim waterway, and the wastewater is rotated by the washwater to the rim waterway so that the siphon action occurs in a short time. Inject Therefore, if a part of the water supply in the tank from the ball tap is not drained as extra washing water to the toilet, the jet stream for generating the siphon action is formed from the beginning of the flow of the ball washing water discharged from the rim water channel. Provided is a water-saving toilet flushing tank device capable of greatly reducing the amount of flushing water used at one time without wasteful ejection, efficiently generating siphons, and discharging waste. In addition, the tank can be downsized because it is sufficient if there is enough capacity to store the washing water in the rim water passage.

(2) Since the jet stream is injected after the drainage of the washing water into the rim water passage in which the turning force has effectively acted on the waste, the siphon action can be efficiently produced with a smaller washing water amount.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the toilet bowl washing tank apparatus of the present invention will be described with reference to the drawings. FIGS. 1 to 8 show a second embodiment of the present invention. In this drawing, the first embodiment of the present invention will be described together with the second embodiment.

The toilet flushing tank device A includes a siphon jet flush toilet 1 in which a rim water passage 11 and a jet water passage 21 are separated from each other, and a delayed valve closing type which communicates with the rim water passage 11 of the flush toilet 1. A water storage tank (hereinafter referred to as a tank) 2 having a drain valve 3 at its bottom, a water supply flow path 4 having one end connected to the water supply and the other end connected to the jet water conduit 21 and the tank 2, respectively. A water supply valve means 5 of a delayed valve opening type provided in the water supply flow path 4 and a switching valve 6 for switching the water supply flow path 4 to the jet water conduit 21 side and the tank 2 side.

As shown in FIG. 7, the flush toilet 1 has a rim water passage 11 having a water injection hole (not shown) facing a ball portion 31 in a known siphon jet toilet and a trap portion.
The jet headrace 21 having an injection hole 21a opened toward the entrance of the wastewater drainage passage communicating with 41 is divided from the inlet as a starting point, and the washing water supplied to the rim waterway 11 and the jet waterway 21 are separated. It is formed in a cross-sectional structure in which the supplied cleaning water does not interfere with each other.

The tank 2 is of a so-called one-piece type or integrally fixed to the rear part of the flush toilet 1 or of a chamber wall-mounted type.

The tank 2 is provided at the bottom thereof with a drain valve 3 of the delayed valve closing type which is interlocked with the rotation operation of the lever handle 7.
To allow drainage to the rim water channel 11, and inside,
A part of a water supply flow path 4 for supplying water into the tank 2 or supplying washing water to the jet conduit 21 is provided in a space above the fixed water storage area, and a constant flow valve 8 and a water supply flow path are provided in that part. Water supply valve means 5 for opening and closing 4; water supply flow path 4
A switching valve 6 for switching to the tank 2 side is provided sequentially from the upstream side.

As shown in FIGS. 2 to 5, the drain valve 3 of the late closing type is provided with a tank 2 at a drain port 13 at the bottom of the tank 2.
A drain valve body 33 seated on a drain valve seat 23 formed on the side opening edge is provided at the lower end of an operating rod 43 with a float 43a, and is integrated with the lever handle 7 which is operated to rotate from the outside. Arm 53 that rotates around the center of rotation
The upper end of the operating rod 43 is connected via a chain 63, and the upper end is opened above the fixed-quantity drainage area of the tank 2 and the middle is divided by a partition wall 73b having a small drainage passage 73a opened therein. An annular weir 73 divided into two spaces is erected around the drain valve seat 23, and a guide cylinder 83 erected from a partition wall 73b is installed in the upper space 73c. The guide cylinder 83 has a float 43a. The operating rod 43 is guided so as to be slidable up and down.
Has a well-known structure in which a through-hole 93 is opened in a wall portion facing the lower space 73d in a lower level portion of.

The operation of the delayed closing type drain valve 3 will be briefly described.
3, the operating rod 43 is raised via the chain 63 and the drain valve body 33 is opened by separating from the drain valve seat 23, and the tank water is opened through the through hole 93 of the annular weir 73 and the small drain passage 73a. The drainage small passage 73a, which drains water to the rim water passage 11 side, has a very small water passage area as compared with the through hole 93, so that the descending speed of the water level in the upper space 73c is lower than the descending speed of the other parts. Even when the fixed amount of water is drained from the inside, the water is still drained from the small drain passage 73a, and after a predetermined time has elapsed, the drain valve body 33 is seated on the drain valve seat 23 and closed.

As shown in FIGS. 2 to 5, the switching valve 6 has the same rotation center so that the switching valve body 16 rotates integrally with the rotation of the lever handle 7 so that the switching valve 6 and the lever handle 7 are aligned. When the drain valve 3 is closed (when the lever handle 7 is not rotated), the switching valve element 16 formed in the middle of the water supply flow path 4 is seated on the jet side water supply valve seat 14. The tank-side water supply valve seat 24 formed with a right-angled arrangement is opened to connect the water supply flow path 4 to the tank 2 from the branch water discharge port 34, and when the drain valve is opened (when the lever handle 7 rotates). The switching valve element 16 rotates and sits on the tank water supply valve seat 24, while the jet water supply valve seat 14 is opened in reverse, so that the water supply flow path 4 communicates with the jet water conduit 21. I have.

When the switching valve element 16 is seated on the jet-side water supply valve seat 14, a force is applied to the lever handle 7 in a direction to continue the seated state, and the lever handle 7 is reversely rotated to the initial state. A weight rod 17 not to be formed is formed to protrude from the lever handle 7 in a cantilevered manner similarly to the arm rod 53. The weight rod 17 is actuated by the operation rod 43 via the chain 63,
The float 43a projects at a predetermined angle with respect to the arm rod 63 so as to reversely rotate the lever handle 7 when receiving the weight of the drain valve body 33 by its own weight.

The water supply valve means 5 is opened when the fixed-quantity drainage area of the tank 2 is sensed, starts water supply to the water-supply flow path 4, and continues until the fixed-quantity water storage area of the tank 2 is sensed. It has a delayed valve opening property to continue supplying water to Road 4.

The water supply valve means 5 is, as shown in FIG.
With respect to the horizontal main valve seat 25a provided in the main body 15, the primary side 15
a main valve body 25b composed of a movable membrane wall (diaphragm) moving toward and away from the main valve body 25a.
b forms a pressure back chamber 35 defining the primary side 15a. The pressure back chamber 35 communicates with the primary side 15a through a communication small hole 45 opened in the main valve body 25b and is connected to the float 55. A basic configuration in which a pilot valve 65 that opens and closes the pressure back chamber 35 and the secondary side 15b is linked to the lever member 75 that is set, and the main valve 25 is opened with a pressure balance by opening the pilot valve 65. Is provided.

The pilot valve 65 includes a pilot valve body 65a.
A pilot valve hole 65b; a valve member sliding contact member 65c having a pilot valve body 65a slidably housed in a vertically slidable manner and having an outer end protruding outside from the main body 15 attached to a lever member 75; And a spring means 65d for the pilot valve body 65a mounted in the contact member 65c.

The lever member 75 is swingably attached to the main body 15 with its base end pivotally supported by a projecting step 15c vertically extending from the outer surface of the main body 15.

The valve body sliding contact member 65c has a tubular shape and has a horizontally long hole 65c-
1 is axially supported by a portion of the lever member 75 adjacent to the base end portion, and is vertically movable and watertight in the outer wall portion 15b ′ of the secondary side 15b of the main body 15. The inner end is located on the secondary side 15b, and a guide small hole 85 is opened at the inner end thereof so as to communicate with the inside.

The pilot valve element 65a is provided with the above-mentioned guide small hole.
Small-diameter valve function section 65a protruding from 85 toward main valve body 25b
-1 and a large-diameter flange-shaped locking projection 65a-2 that slides on the inner surface of the valve body sliding contact member 65c are integrally formed, and the locking projection 65a-2 is used for the valve body. By being locked to the inner surface of the inner end of the sliding contact member 65c, the sliding contact member 65c is housed so as not to fall off with respect to the sliding contact member 65c for the valve body.

The pilot valve hole 65b is opened at a portion of the main valve body 25b facing the pilot valve body 65a across the main valve seat 25a so as to communicate the pressure back chamber 35 and the secondary side 15b.
The pilot valve 65 is closed by closing the valve function portion 65a-1 when seated, and opened by opening the pilot valve 65 when the valve function portion 65a-1 is separated.

The elastic means 65d is made of a compression spring material, and is provided between the pilot valve element 65a and the valve element sliding contact member 65c so as to press the pilot valve element 65a with a force smaller than the primary side water supply pressure. It is mounted on the bottom.

Further, when the pilot valve 65 is closed, that is, when a fixed amount of water is stored in the tank 2, the inner surface of the inner end is positioned above the locking projection 65a-2 of the pilot valve body 65a. A space 9 for delaying the opening of the pilot valve 65 is formed until the inner end is locked to the locking projection 65a-2.

The space 9 has a length (distance) between a base end portion attached to the projecting step 15c of the main body 15 and a shaft supporting portion of the valve body sliding contact member 65c, and a total length (distance) of the lever member 75. And the lever ratio (α) is doubled to the descending distance of the float 55,
The pilot valve hole of the pilot valve body 65a corresponds to the descending distance.
The separation from 65b can be delayed.

That is, the water supply valve means 5 starts the valve operation when the water level corresponding to the floating distance of the float 55, which is doubled by the lever ratio, is drained from the tank and the tank water level reaches the fixed drainage area. The body sliding contact member 65c is a pilot valve body 65a.
Is configured to be able to be depressed.

Incidentally, the constant flow valve 8 may be of a well-known structure which quantifies the flow rate supplied regardless of the fluctuation of the supply pressure of tap water, and a detailed description thereof will be omitted.

Next, the operation of the toilet bowl washing tank apparatus of this embodiment will be described with reference to FIGS. (A) and (b) in FIG.
Is a delayed opening type water supply valve means 5 and a delayed closing type drain valve 3
Indicates a so-called non-cleaning state in which both valves are closed. When the lever is rotated forward by operating the lever handle 7 from this state as shown in FIG. 3, the drain valve body 33 is lifted up via the chain 63 and is separated from the drain valve seat 23 to start draining to the rim water passage 11 side. At the same time, the switching valve body 16 is rotated in the forward direction to switch the water supply flow path 4 to the jet water conduit 21 side. At this time, the water stored in the tank 2 is discharged to the rim water passage 11 as washing water from the drain port 13 through the through hole 93 of the annular weir 73 and the small drain passage 73a. As a result, the valve sliding member 65c does not pull down the pilot valve body 65a, so that the pilot valve 65 does not open and remains closed. FIG. 4A shows the pilot valve element 65a when the valve body sliding contact member 65c is lowered by the height of the space 9 via the lever member 75, that is, when the tank 2 reaches the constant-rate drainage area.
Shows the state of depressing for the first time, instantaneously generates the pressure balance as shown in FIG. 4 (b) by the drainage in the pressure back chamber 35, thereby opening the main valve 25 to open the water supply flow path 4. Then, the supply of the quantified tap water to the jet headrace 21 side is started (FIG. 4C). When the inside of the tank 2 reaches the fixed amount drainage area, the drainage small passage 73a has an extremely small water passage area compared to the through hole 93, so that the descending speed of the water level in the upper space 73c is lower than the descending speed of the other parts. , Still a small drainage passage 73
The drainage from a is continued, and the drain valve body 33 is in the valve open state. The time from this state until the drain valve body 33 is seated on the drain valve seat 23 is the drainage time of the wash water to the jet conduit 21. FIG. The state in which the drain valve body 33 is seated on the drain valve seat 23 and closed is shown. At this time, the switching valve body 16 rotates in the opposite direction, sits on the jet-side water supply valve seat 14, switches to the tank side, and starts tank water supply. FIG. 6 shows a state in which the water level rises due to water supply in the tank, the float 55 reaches the fixed-quantity water storage area again, and the pilot valve body 65a closes the pilot valve hole 65b. When the feedwater flows into the pressure back chamber 35 from the primary side through the communication small hole 45, the main valve body 25b is moved to the main valve seat 25.
a, and closes the main valve 25 to return to the state shown in FIG.

Accordingly, the drainage time (T) in which the delayed closing type drain valve 3 is opened and the fixed amount of water is drained from the tank 2 to the rim water passage 11.
1) After that, the drainage time (T2) to the jet headrace 21 starts, and this drainage time (T2) continues until the delayed closing type drainage valve 3 closes the drainage port 13, and the drainage time (T2).
After the time elapses, the water supply time to the tank 2 (T3) is started by switching the flow path.

As described above, in the toilet bowl washing tank apparatus of this embodiment, the waste force is continuously applied to the rim washing water (washing water drained to the rim water passage 11) which falls into the sealing portion of the trap portion. Can receive tap water as a jet stream after receiving a more effective rotating action, can generate a siphon very efficiently, and the drainage time (T2) can be reduced by the small drainage passage 73.
It can be set freely according to the water passing area a, the buoyancy of the float 43a, and the like.

Although not described in detail, in the first embodiment, a time chart is formed in which the drainage time (T1) to the rim water passage 11 and the drainage time (T2) to the jet headrace 21 overlap each other. It also includes things. In this case, the space 9 may be set so that the valve opening timing of the water supply valve means 5 of the delayed valve opening type can be started when the water in the tank reaches the halfway drainage area.

Further, the water supply valve means 5 of a delayed valve opening type is provided with a photoelectric sensor for detecting a fixed water storage area of the tank 2, a float switch, and further, an ultrasonic wave is projected on the water surface to measure a distance based on a return time. Using a sensor that senses the water level of the tank, it senses the fixed drainage area or predetermined lowering area of the tank and the fixed water storage area, and electrically controls the start and stop of water supply of the water supply valve. This is also possible, and the present invention is not limited to the structure disclosed in this embodiment.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a use state.

FIGS. 2A and 2B show a non-washing state, wherein FIG. 2A is an enlarged cross-sectional view of a delayed-open water supply valve means, and FIG. 2B is an enlarged cross-sectional view of a delayed-closed drain valve.

FIG. 3 is an enlarged cross-sectional view of a delay valve closing type drain valve, showing a state in which rim cleaning has been started.

FIG. 4 is an enlarged cross-sectional view of a state in which a lever member connected to a space-separating float is tilted, (a) is an enlarged sectional view of a state immediately before a delayed valve-type water supply valve is opened, and (b) is a same delay. An enlarged cross-sectional view of a state in which a valve-opening type water supply valve means is opened, and FIG. 3C is an enlarged cross-sectional view of a delay-closed drain valve in a state of FIG.

FIG. 5 is an enlarged cross-sectional view showing a state in which a drain valve of a late valve closing type is closed.

FIG. 6 is an enlarged cross-sectional view of a delay valve-type water supply valve means showing a state in which a fixed amount of water is supplied (water supply) in the tank.

FIG. 7 is partially cut away in a side view of the faucet type toilet.

[Fig. 8] Drainage time to the rim waterway (T1), drainage time to the jet headrace (T2), and water supply time to the tank (T1).
3) is a time chart showing the relationship.

[Explanation of symbols]

 1: flush toilet 11: rim waterway 21: jet waterway 2: water storage tank 8: constant flow valve 4: water supply flow path 5: water supply valve means 7: lever handle 6: switching valve

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Keishi Horiuchi 2-1-1, Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Tochiki Kiki Co., Ltd. (72) Hideo Hirokawa 2, Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka No. 1-1, Totoki Kiki Co., Ltd. (56) References: Japanese Utility Model Sho 64-47878 (JP, U) Japanese Utility Model Sho 56-101263 (JP, U) (58) Fields investigated (Int. Cl. ⁷⁾ , DB name) E03D 1/30-1/33

Claims (2)

(57) [Claims] 1. A flush toilet having a rim waterway and a jet waterway with different inlets separated from each other, and a water storage tank having a lever handle interlocking drain valve at the bottom for communicating with the rim waterway of the flush toilet. A water supply flow path having one end connected to the water supply through a constant flow valve and the other end connected to the jet water conduit and the water storage tank; and a water supply flow path provided in the water supply flow path. A delay-opening-type water supply valve means for opening a valve upon detection of a descending area of the water supply, starting water supply to the water supply flow path, and continuing to open the valve until a constant amount storage area of the water storage tank is detected; A switching valve that is provided in a water supply flow path downstream of the valve means and switches the water supply flow path to the jet water conduit side and the water storage tank side in conjunction with the opening and closing movement of the lever handle interlocking drain valve. A toilet flushing tank device. 2. The water supply valve means opens upon sensing a constant drainage area of the water storage tank to start supplying water to the water supply flow path, and until the water level senses the constant quantity water storage area. 2. The method according to claim 1, wherein the water supply to the flow path is controlled to be continued, and the drain valve is of a delayed valve closing type that is closed after a certain amount of water reaches the fixed amount drainage area of the water storage tank. Toilet washing tank device.