JP4305359B2 - Toilet device - Google Patents

Description

  The present invention relates to a toilet device that causes a siphon phenomenon in a drainage channel to perform toilet cleaning, and more particularly, to a toilet device that includes negative pressure generating means for sucking air in a drainage channel to obtain a negative pressure.

  Commonly used flush toilets include those that supply wash water from a low tank or a high tank to a toilet, and those that are directly connected to a water supply that supplies wash water directly from a water supply pipe to the toilet. When this toilet directly connected to the water supply system is installed in a place with low tap water pressure, a pressure accumulator tank is connected to the water supply pipe via the pipe, and the toilet bowl is washed with washing water from the water supply pipe and pressure accumulation water from the pressure accumulator tank. Is also well known.

  When flush water is supplied to a toilet bowl in a flush toilet, a siphon phenomenon is caused and the water in the toilet bowl is discharged as if it is sucked into a drain pipe. By activating the siphon early, it is possible to perform sufficient cleaning with a small amount of cleaning water.

Conventionally, in order to accelerate such siphons or strengthen siphons, siphon-zette type Western style toilets that jet water (zet water) from the zet hole toward the downstream of the drainage channel have been used. ing. However, in the Siphon Zet type Western-style toilet, jet water is ejected from the zet hole, so water is required for purposes other than toilet flushing, and the amount of washing water decreases as the siphon is accelerated and strengthened It will be offset by the amount of water.
In order to solve such problems and to speed up siphoning, toilet facilities equipped with negative pressure means for sucking air in the drainage flow path to make negative pressure are used.

  For example, in Japanese Patent Application Laid-Open No. 6-17477, a blower is connected to the highest portion of a drainage flow path via a pipe, and the blower is activated simultaneously with the opening of the flush valve to draw air in the drainage flow path. A configuration is described in which suction is performed and the inside of the drainage flow path is made negative pressure so as to accelerate the siphon.

  Further, in FIG. 20 and paragraph 0130 of JP-A-7-42217, the first trap at the lower part of the toilet bowl is sealed, and the second trap at the downstream side of the highest part of the drainage channel is provided. Water is sealed, and a negative pressure generator is connected to the highest position via a hose, and the drainage flow path between the first trap and the second trap is downstream of the second trap via a bypass passage with an on-off valve. A toilet facility in communication with the drainage channel is described.

  In this toilet facility, the on-off valve is closed during toilet cleaning, and the drainage channel between the first trap and the second trap is sealed. In this state, the negative pressure generating device sucks the air in the drainage channel, so that the drainage channel has a negative pressure.

After toilet flushing, the on-off valve is opened, and the drainage channel between the first trap and the second trap communicates with the drainage channel downstream of the second trap. Thereby, the negative pressure of the drainage channel between the first trap and the second trap is eliminated. For this reason, it is prevented that the sealing water in a 1st trap is drawn in into the downstream of a 1st trap by a negative pressure, and the water level in a toilet bowl falls.
JP-A-6-17477 Japanese Unexamined Patent Publication No. 7-42217

  In paragraph 0130 of JP-A-7-42217, it is described that “the on-off valve provided in the bypass passage can be opened and closed by an external operation”. There is no specific description about what is done. When this on-off valve is an electromagnetic valve, a control circuit, electrical wiring, and the like are required, which complicates the structure and increases the equipment cost.

  An object of the present invention is to provide toilet equipment with a simple structure in which siphoning is accelerated and a negative pressure portion is prevented from remaining in a drainage channel after washing.

  The toilet device of the present invention (Claim 1) includes a toilet bowl, a flush water supply valve for supplying toilet flush water to the toilet bowl, a first trap section connected to the toilet bowl, and the first trap section. A first drainage channel portion connected downstream of the first drainage channel portion, a second trapping portion connected to the first drainage channel portion, a second drainage channel portion connected to the second trapping portion, and a negative suction A toilet device comprising: a negative pressure generating means for generating a pressure; and a vent valve device for opening the first drainage channel to atmospheric pressure, wherein the toilet device includes a pressure accumulating tank for storing toilet flush water; And a pressure-accumulating water discharge valve for supplying the pressure-accumulated water in the pressure-accumulating tank to the toilet when the flush water supply valve is opened, and the vent valve device has the pressure-accumulating water discharged from the pressure-accumulating tank. The valve is closed by the water pressure.

  The toilet device according to claim 2 is characterized in that, in claim 1, the first drainage channel portion communicates with the second drainage channel portion via a bypass pipe provided with the vent valve device. is there.

  The toilet device according to claim 3 is the toilet device according to claim 1 or 2, wherein the water storage part of the pressure storage tank is connected to a rim of the toilet through a pressure storage water discharge channel provided with a pressure storage water discharge valve device, The rim side of the accumulated water discharge valve device of the accumulated water discharge flow channel and the vent valve device are connected by an accumulated water pressure transmission pipe, and when the accumulated water discharge valve device is opened, When the accumulated water pressure is transmitted to the vent valve device via the accumulated water pressure transmission pipe, the vent valve device is closed, and when the accumulated water discharge valve device is closed, the accumulated water pressure of the accumulator tank is transmitted. The vent valve device is shut off and the vent valve device is opened.

  According to a fourth aspect of the present invention, there is provided a toilet device according to the third aspect, wherein the vent valve device is a piston-shaped housing that is accommodated in the housing and is divided into a back pressure chamber and an air passage chamber. A valve body, and an air inflow port and an air outflow port facing the air passage chamber, and the valve body closes at least one of the ports by moving in one direction along the cylinder axis; Both of the ports are opened by moving in the other direction, the pressure-accumulating water pressure transmission pipe is connected to the back pressure chamber, and the vent valve device further opens the valve body in the other direction. And a biasing member that biases the lens.

A toilet device according to a fifth aspect of the present invention is the toilet device according to any one of the first to fourth aspects, wherein the pressure accumulation tank is partitioned into a pressure accumulation chamber for storing toilet flush water and an intake chamber by a partition means, Further, at least one of the pressure accumulating chambers is provided with a biasing means for biasing the partition means toward the pressure accumulating chamber, and the intake chamber serves as the negative pressure generating means.
The toilet device according to claim 6 is characterized in that, in claim 5, the partition means is a diaphragm.

  The toilet device according to the present invention (Claim 1) includes a first trap portion connected to the toilet bowl, a first drainage passage portion connected downstream of the first trap portion, and a second trap portion connected to the first drainage passage portion. And a second drainage channel portion connected to the second trap portion, the first drainage channel portion is sealed by the first trap portion and the second trap portion. And since the negative pressure generating means sucks the air in the first drainage channel and makes the first drainage channel a negative pressure, siphon is caused early.

  The toilet device of the present invention includes a pressure accumulation tank for storing toilet flush water, and a pressure accumulation water discharge valve for supplying the pressure accumulation water in the pressure accumulation tank to the toilet when the flush water supply valve is opened. The vent valve device for sucking one drainage channel portion to obtain a negative pressure is closed by the water pressure of the pressure accumulation water discharged from the pressure accumulation tank. As described above, since the pressure accumulating tank is provided, even when the toilet device is installed in a place with a low tap water pressure, it is possible to obtain wash water having sufficient water power. Further, since the vent valve device is closed using the water pressure in the pressure accumulating tank, there is no need to separately provide an electric drive device or electric wiring for operating the vent valve device, and the structure of the toilet device is simple. It will be a thing.

  When the first drainage channel portion communicates with the second drainage channel portion via a bypass pipe provided with a vent valve device (Claim 2), the air in the first drainage channel portion passes through the bypass pipe. 2 Since it is exhausted to the drainage channel and the air does not flow into the toilet room, it is hygienic.

  In the toilet device according to claim 3, the water storage part of the pressure accumulating tank is connected to the rim of the toilet bowl via the pressure accumulating water discharge passage provided with the pressure accumulating water discharge valve device. The rim side of the accumulator water discharge valve device and the vent valve device are connected by an accumulator water pressure transmission pipe, and when the accumulator water discharge valve device is opened, the accumulator water pressure of the accumulator tank is changed to the accumulator water pressure transmission pipe. When the vent valve device is closed by being transmitted to the vent valve device via the valve, and the accumulated water discharge valve device is closed, the transmission of the accumulated water pressure of the accumulator tank is cut off, and the vent valve device is Open the valve. Thus, since the vent valve device is opened and closed by utilizing the water pressure of the pressure accumulating tank, it is not necessary to separately provide a device for operating the vent valve device, and the structure of the toilet device is simplified.

  The vent valve device includes a cylinder-shaped housing, a piston-shaped valve body that is housed in the housing and divides the housing into a back pressure chamber and an air passage chamber, and an air inflow port that faces the air passage chamber. And the air outflow port, and the valve body closes at least one of the ports by moving in one direction of the cylinder axis and opens both of the ports by moving in the other direction. The pressure accumulation water pressure transmission pipe is connected to the back pressure chamber, and the vent valve device further includes a biasing member that biases the valve body in the other direction. Preferred (claim 4). In this case, the structure of the vent valve device becomes simple and the manufacturing cost is low.

  The pressure accumulating tank is partitioned into a pressure accumulating chamber for storing toilet flush water and an intake chamber by the partitioning means, and the partitioning means is biased toward the pressure accumulating chamber side in at least one of the intake chamber and the pressure accumulating chamber. Preferably, the suction chamber is provided as the negative pressure generating means (Claim 5). In this case, it is not necessary to separately install the negative pressure generating means, and the toilet device is compact. And it becomes inexpensive.

  The partition means is preferably a diaphragm. In this case, the diaphragm can partition the pressure accumulating tank into the pressure accumulating chamber and the intake chamber while maintaining water tightness, and the pressure accumulating tank. It can move smoothly inside.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is a system diagram of a toilet device according to an embodiment, FIG. 2 is a longitudinal sectional view of the vent valve device of FIG. 1, and FIG. 3 is an integrated unit of the flush valve device and the pressure-accumulating water discharge valve device of FIG. FIG. 4 is a cross-sectional view of the toilet bowl cleaning valve device in FIG.

  A rim 3 is provided on the upper inner periphery of the toilet bowl 2 in the porcelain western-style toilet body 1. The lower part of the toilet bowl 2 is a first trap part 4. The first trap part 4 communicates with the second trap part 6 via the first drainage flow path 5. The first drainage channel portion 5 includes a rising portion that rises obliquely upward from the first trap portion 6, and a standing portion that continues to the rising portion and falls downward and continues to the second trap portion 6.

  The second trap portion 6 is a U-shaped channel that goes around the lower side of the lowest portion 6b at the bottom of the pipe wall of the first drainage channel portion 5, and the downstream end of the second trap portion 6 is 2 It is connected to the drainage channel 7. A barrier 6a for overflowing trap water is provided from the lower side of the inner wall of the connecting portion between the second trap portion 6 and the second drainage channel portion 7. The height of the barrier 6a is higher than that of the lowest portion 6b. The second drainage channel 7 is connected to a drain pipe (not shown).

  A water supply pipe 8 having a flush valve device 9 as a flush water supply valve is connected to the rim 3 of the toilet body 1. An inflow pipe 63 having a pressure reducing orifice 64 branches from the upstream side of the flush valve device 9 of the water supply pipe 8, and the inflow pipe 63 is connected to an inflow port above the pressure accumulation tank 50.

  The accumulator tank 50 is arranged on the upper side or the side of the rear part of the toilet body 1. However, the arrangement location of the pressure accumulation tank is not limited to this.

  The interior of the pressure accumulation tank 50 is partitioned into a pressure accumulation chamber 51 and an intake chamber 52 by a diaphragm 53. A support 54 and a support 55 that back up the diaphragm 53 are bonded to a surface on the pressure accumulating chamber 51 side and a surface on the intake chamber 52 side in the center of the diaphragm 53, respectively.

  The support body 55 has a closed and bottomless cylindrical cup shape whose upper surface is closed and opens downward. A coil spring 56 is provided between the support body 55 and the bottom of the intake chamber 52 as an urging means for urging the support body 55 upward (accumulation chamber 51 side).

  The intake chamber 52 is communicated with the upper portion of the first drainage channel portion 5 through a communication pipe 65.

  One end of a pressure-accumulated water discharge channel 61 including a pressure-accumulated water discharge valve device 60 is connected to the outflow port in the upper part of the pressure-accumulation chamber 51. The other end of this pressure accumulation water discharge channel 61 is connected to the rim 3.

An accumulated pressure water pressure transmission pipe 62 branches from a location on the rim 3 side of the accumulated pressure water discharge valve device 60 in the accumulated pressure water discharge channel 61 and is connected to a back pressure chamber 73 of the vent valve device 70.
The vent valve device 70 includes a cylinder-shaped housing 71, a piston-type valve body 72 that is accommodated in the housing 71 and divides the housing 71 into a back pressure chamber 73 and an air passage chamber 74, and the air passage An air inflow port and an air outflow port facing the chamber 74 are provided. A groove is provided around the peripheral surface of the valve body 72, and an O-ring 72a is fitted in the groove.

  The air inflow port is provided at the center of the end of the housing 71 on the air passage chamber 74 side. An air inflow pipe 75 is connected to the air inflow port. The tip of the air inflow pipe 75 is connected to a valve seat 75a on which the valve body 72 is seated. The other end of the air inflow pipe 75 is connected to the first drainage channel portion 5.

  An air outflow pipe 76 is connected to the air outflow port, and the other end of the air outflow pipe 76 is connected to the second drainage channel section 7. By the air inflow pipe 75 and the air outflow pipe 76, a bypass pipe that communicates the first drainage channel portion 5 and the second drainage channel portion 7 is configured. The air outflow port is provided on the peripheral surface of the housing 71. In the present embodiment, this air outflow port is opened when the valve body 72 is in contact with the end of the housing 71 on the back pressure chamber 73 side, and is opened when the valve body 72 is seated on the valve seat 75a. It is provided at a position closed by the body 72.

  Between the end of the housing 71 on the air passage chamber 74 side and the valve body 72, a coil spring 77 is provided as a biasing member that biases the valve body 72 toward the back pressure chamber 73.

  In FIG. 1, in order to clarify the piping system, the flush valve device 9 and the pressure accumulation water discharge valve device 60 are shown separately, but in reality they are integrated and opened simultaneously as follows. The valve is configured to be closed. Next, the configuration of the toilet flushing valve device 20 in which the flush valve device 9 and the pressure accumulation water discharge valve device 60 are integrated will be described with reference to FIG.

  The housing 21 of the valve device 20 is provided with a water supply inlet 31 connected to the water supply pipe 8 and a pressure-accumulated water inlet 41 connected to a pressure-accumulated water discharge channel 61 of the pressure-accumulation tank 50, and a water supply outlet 37 A pressure accumulation water outlet 47 is provided. Further, the housing 21 is provided with a back pressure chamber 22 and a control port 23 for discharging water pressure from the back pressure chamber 22. The control port 23 communicates with the rim 3 via a manual push valve 24 and a pipe 25. This push valve 24 has a known structure that opens only when it is pushed by hand and closes by a spring when the hand is released.

  In the housing 21, in order to control the outflow of water from the feed water inlet 31 to the feed water outlet 37 and the outflow of water from the pressure-accumulated water inlet 41 to the pressure-accumulated water outlet 47, valve seats 32 and 42 and a valve body 33 are provided. , 43 and springs 36, 46 for pressing the valve bodies 33, 43 in the seating direction on the valve seats 32, 42 are arranged. Each of the valve bodies 3 and 43 includes valve bodies 34 and 44 and diaphragms 35 and 45, and the main flow path of the water supply and pressure accumulation water and the back pressure chamber 22 are partitioned by these valve bodies 33 and 43. The valve bodies 34 and 44 are provided with small holes 34 a and 44 a that always communicate the back pressure chamber 22 with the feed water inlet 31 side and the accumulated water inlet 41 side.

  When the manual push valve 24 is closed, the water pressure from each of the inflow ports 31 and 41 propagates to the back pressure chamber 22 through the small holes 34a and 44a, and the valve body is driven by this water pressure and the biasing force of the spring 46. 33 and 43 are seated on the valve seats 32 and 42 and are in a water-stopping state. When the manual push valve 24 is pushed to open, the back pressure chamber 22 communicates with the rim 3 via the pipe 25, and the water pressure in the back pressure chamber 22 decreases. As a result, the pressing force in the separating direction received by the valve bodies 33 and 43 due to the water pressure from the respective inlets 31 and 41 is exceeded, and the respective valve bodies 34 and 44 are separated from each other. , 47 communicate. Thereby, water supply and pressure accumulation water flow out from each inflow port 31,41 to outflow port 37,47. When the hand is released from the manual push valve 24, the push valve 24 opens. Then, the water supply and the accumulated water gradually flow into the back pressure chamber 22 through the small holes 34a and 44a, and finally the valve bodies 33 and 43 are seated on the valve seats 32 and 42 and stopped.

Next, the operation of the toilet device configured as described above will be described.
[When not washed]
At the time of non-cleaning, the flush valve device 9 and the pressure accumulation water discharge valve device 60 are closed, and water gradually flows into the pressure accumulation chamber 51 from the water supply pipe 8 through the inflow pipe 63 and the orifice 64, and the pressure accumulation water is stored. Is done. This hydrostatic pressure of the accumulated water is equivalent to the water supply pressure in the water supply pipe 8. Since the hydrostatic pressure of the water supply pipe 8 is higher than the biasing pressure of the coil spring 56, when water gradually flows from the water supply pipe 8 into the pressure accumulating chamber 51, the support body 55 gradually moves downward and finally. As shown in FIG. 1, the lower end of the support 55 abuts against the bottom surface of the intake chamber 52.

  As described above, the pressure-accumulated water discharge valve device 60 is closed, and the pressure-accumulated water discharge channel 61 communicates with the atmosphere via the rim 3. The downstream side of the accumulated water discharge valve device 60 is atmospheric pressure. Therefore, the back pressure chamber 73 of the vent valve device 70 communicating with the pressure accumulation water discharge channel 61 and the pressure accumulation water pressure transmission pipe 62 is also at atmospheric pressure. For this reason, the biasing force of the coil spring 77 in the vent valve device 70 overcomes the pressure in the back pressure chamber 73, and the coil spring 77 presses the valve body 72 toward the back pressure chamber 73. The outflow port is opened. As a result, the first drainage channel 5 communicates with the second drainage channel 7 via the air inlet pipe 75, the vent valve device 70 and the air outlet pipe 76. Thus, since the 1st drainage channel part 5 and the 2nd drainage channel part 7 are connected and the pressure is the same, the 1st drainage channel part 5 of the 2nd trap part 6 is shown in FIG. The water surface on the side and the water surface on the second drainage channel 7 side have the same height. Moreover, since the 2nd drainage channel part 7 is substantially atmospheric pressure, the 1st drainage channel part 5 is also substantially atmospheric pressure. For this reason, the water in the stool 2 is not sucked into the first drainage channel 5 side and the water level in the stool 2 is not lowered, and the water surface on the stool 2 side of the first trap 4 and the first drainage. The water surface on the side of the road 5 is also at the same height.

[Cleaning (Fig. 4)]
When the manual push valve 24 is pushed, the flush valve device 9 and the accumulated water discharge valve device 60 are opened, and the wash water is supplied from the water supply pipe 8 into the toilet bowl 2 through the flush valve device 9 and the rim 3. At the same time, the accumulated water is supplied from the accumulator tank 50 into the toilet bowl 2 through the accumulated water discharge toilet device 60, the accumulated water discharge passage 61, and the rim 3. Thereby, the inner surface of the toilet bowl 2 is washed. At this time, since the inside of the water supply pipe 8 is in a water-flowing state, the water pressure in the water supply pipe 8 is lower than the hydrostatic pressure in the water supply pipe 8 during non-cleaning. For this reason, the water pressure in the water supply pipe 8 is lower than the water pressure in the pressure accumulation chamber 51, but since the orifice 64 is provided in the inflow pipe 63, the backflow of water from the pressure accumulation chamber 21 to the water supply pipe 8 is suppressed. Most of the accumulated water in the accumulation chamber 51 flows out from the accumulated water discharge channel 61.

  When the pressure accumulation water discharge valve device 60 is opened, the pressure accumulation chamber 51 communicates with the back pressure chamber 73 in the vent valve device 70 via the pressure accumulation water discharge channel 61 and the pressure accumulation water pressure transmission pipe 62, and the back pressure chamber 73 is Pressurized. This pressure overcomes the urging force of the coil spring 77 and presses the valve body 72 against the valve seat 75a. Thereby, the communication between the air inflow port and the air outflow port is blocked. Thus, the vent valve device 70 is closed, and the upstream end and the downstream end of the first drainage channel portion 5 are sealed by the first trap portion 4 and the second trap portion 6 as shown in FIG. Therefore, the inside of the first drainage channel part 5 is sealed.

  As the pressure accumulation water in the pressure accumulation chamber 51 flows out, the diaphragm 53 is pushed up to the pressure accumulation chamber 51 side by the coil spring 56, and a negative pressure is generated in the intake chamber 52. As a result, the air in the first drainage channel portion 5 is sucked into the intake chamber 52 via the communication pipe 65. At this time, as described above, since the inside of the first drainage channel part 5 is sealed, negative pressure is generated in the first drainage channel part 5 by sucking out the air in the first drainage channel part 5. To do. Due to this negative pressure, as shown in FIG. 4, the water in the trap part 4 is sucked into the first drainage channel part 5 side, and the flow toward the first drainage channel part 5 of the feces first trap part 4 is assisted. A strong siphon flow is formed in the trap portion 4 at an early stage.

[Stop washing]
When the hand is released from the manual push valve 24, in the toilet flushing valve device 20 of FIG. 3, the water supply and the accumulated water gradually flow into the back pressure chamber 22 through the small holes 34a and 44a. The valve bodies 33 and 43 are seated on the valve seats 32 and 42 and stopped. In this way, the flush valve device 9 and the accumulated water discharge valve device 60 are gradually closed.

  As the pressure-accumulated water discharge valve device 60 is gradually closed, the pressure in the pressure-accumulated water discharge flow channel 61 on the downstream side of the pressure-accumulated water discharge valve device 60 gradually decreases. The pressure in the back pressure chamber 73 communicated via the accumulated water pressure transmission pipe 62 also gradually decreases. Eventually, the urging force of the coil spring 77 overcomes the pressure of the back pressure chamber 73 and presses the valve body 72, and the air inflow port and the air outflow port are opened, and the first drainage channel portion 5 and the second drainage channel portion 7 Communicate. Thereby, the air in the 2nd drainage channel part 7 flows in into the 1st drainage channel part 5, the negative pressure in the 1st drainage channel part 5 is eliminated, and the siphon phenomenon disappears. Thereafter, water is gradually supplied from the water supply pipe 8 into the toilet bowl 2, trap water is sufficiently stored in the toilet bowl 2, and the flush valve device 9 and the accumulated water discharge valve device 60 are completely closed.

  Thereafter, as described above, water is stored in the pressure accumulating chamber 51 from the water supply pipe 8 through the inflow pipe 63.

  Since the toilet device of this Embodiment is provided with the pressure accumulation tank 50, even if it is a case where a toilet device is installed in the place of low tap water pressure, it can obtain the wash water of sufficient water power.

  The toilet device according to the present embodiment uses the water pressure in the pressure accumulating tank 50 to close and close the vent valve device 70, so there is no need to separately provide an electric drive device, electric wiring, or the like for operating the vent valve device 70. The structure of the toilet device is simplified.

  Further, the air in the first drainage channel part 5 is exhausted to the second drainage channel part 7 through the air inflow pipe 75, the vent valve device 70, and the air outflow pipe 76, and the air flows out into the toilet room. There is no hygiene.

  Since the intake chamber 52 of the accumulator tank 50 is a negative pressure generating means, it is not necessary to separately install the negative pressure generating means, and the toilet device is compact and inexpensive.

It is a systematic diagram of the toilet device which concerns on embodiment. It is a longitudinal cross-sectional view of the vent valve device of FIG. It is a longitudinal cross-sectional view of the toilet flushing valve apparatus with which the flush valve apparatus of FIG. 1 and the pressure accumulation water discharge | release valve apparatus were integrated. It is an expanded sectional view at the time of washing | cleaning of the toilet device of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Toilet body 2 Toilet bowl 3 Rim 4 1st trap part 5 1st drainage channel part 6 2nd trap part 7 2nd drainage channel part 8 Water supply piping 9 Flush valve device 50 Accumulation tank 51 Accumulation chamber 52 Intake chamber 53 Diaphragm 56 Coil spring 60 Accumulated water discharge valve device 61 Accumulated water discharge channel 62 Accumulated water pressure transmission pipe 63 Inflow pipe 64 Orifice 70 Ventilation valve apparatus 71 Housing 72 Valve body 73 Back pressure chamber 74 Air passage chamber 75 Air inflow tube 76 Air outflow tube 77 Coil spring

Claims (6)

Toilet bowl,
A flush water supply valve for supplying toilet flush water to the toilet bowl;
A first trap portion connected to the toilet bowl;
A first drainage channel section downstream from the first trap section;
A second trap portion connected to the first drainage channel portion;
A second drainage passage portion connected to the second trap portion, and a negative pressure generating means for sucking the first drainage passage portion into a negative pressure;
A vent valve device for opening the first drainage channel to atmospheric pressure;
In a toilet device comprising:
The toilet device includes a pressure accumulation tank for storing toilet flush water,
A pressure-accumulated water discharge valve for supplying the pressure-accumulated water in the pressure-accumulation tank to the toilet when the flush water supply valve is opened,
The toilet device is characterized in that the vent valve device is closed by the water pressure of the accumulated water discharged from the accumulator tank.   The toilet device according to claim 1, wherein the first drainage channel portion communicates with the second drainage channel portion via a bypass pipe provided with the vent valve device. In Claim 1 or 2, the water storage part of the above-mentioned pressure storage tank is connected to the rim of a toilet bowl via the pressure accumulation water discharge channel provided with the pressure accumulation water discharge valve device,
The rim side of the pressure-accumulated water discharge valve device of the pressure-accumulated water discharge channel and the vent valve device are connected by a pressure-accumulated water pressure transmission pipe,
When the pressure accumulation water discharge valve device is opened, the pressure accumulation water pressure of the pressure accumulation tank is transmitted to the ventilation valve device via the pressure accumulation water pressure transmission pipe, whereby the ventilation valve device is closed,
The toilet device is characterized in that when the pressure-accumulated water discharge valve device is closed, transmission of the pressure-accumulated water pressure of the pressure-accumulation tank is interrupted and the vent valve device is opened. The vent valve device according to claim 3,
A cylinder-shaped housing;
A piston-shaped valve body that is accommodated in the housing and divides the housing into a back pressure chamber and an air passage chamber;
An air inflow port and an air outflow port facing the air passage chamber;
With
The valve body closes at least one of the ports by moving in one direction of the cylinder axis, and opens both of the ports by moving in the other direction.
The pressure accumulation water pressure transmission pipe is connected to the back pressure chamber,
The vent valve device further includes a biasing member that biases the valve body in the other direction. 5. The pressure accumulation tank according to claim 1, wherein the pressure accumulating tank is partitioned into a pressure accumulating chamber and an intake chamber for storing toilet flush water by a partitioning means, and is provided in at least one of the intake chamber and the pressure accumulating chamber. A biasing means for biasing the partitioning means toward the pressure accumulating chamber is provided;
A toilet device characterized in that the intake chamber serves as the negative pressure generating means.   6. The toilet apparatus according to claim 5, wherein the partitioning means is a diaphragm.

Images