RU2458210C2 - Suction air device for toilet drain port - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: air suction device for toilet drain port has an air suction means for sucking air from the toilet drain port. Suction means is connected to the rear along the side of the water trap of the toilet body. The suction means has an ejector. The ejector is used as a generator of negative pressure and has a suction tank. The suction tank is located between the ejector and the toilet drain port. The air suction device additionally has a control device designed to control the execution of two stages. During the first stage, the suction tank sucks air from the toilet drain port. During the second stage, the suction tank releases air into the toilet drain port. The control unit performs a suction stage after the start of the supply of wash water into the toilet bowl. The stage of air release is performed before the completion of supply of wash water into the toilet bowl.

EFFECT: possibility of effective and quiet flushing of a toilet is achieved.

4 cl, 4 dwg

Description

The present invention relates to an air suction device for a toilet drainage channel.

Patent Document 1 discloses one of the conventional air intake devices for a toilet drainage channel. The air suction device is provided with air suction means for sucking air from the toilet drainage channel, attached to the rear side upstream of the water closure of the toilet body. The bypass pipe joins the water supply pipe, which supplies the flushing water to drain into the toilet of the toilet body. The bypass pipe is equipped with an ejector generating negative pressure. The means for suctioning air has an ejector and a suction tank connected on one side to the ejector and on the other to the toilet drainage channel. The suction tank has an internal separation into the outer part of the pneumatic cylinder (first chamber) and its inner part (second chamber). The first chamber is connected to the ejector, and the second chamber is connected to the drainage channel of the toilet. A drain valve is provided on the water supply pipe located upstream of the bypass pipe.

When the drain valve in the air intake device is activated, flushing water for draining is forced to flow through the water supply pipe for a predetermined time to be supplied to the toilet. Since the drain water in this case also flows through the bypass pipe into the ejector, the air in the first chamber of the suction tank is sucked in by the ejector. As a result, the pneumatic cylinder of the suction tank expands. Air is drawn in from the toilet drainage channel into the second chamber during the expansion of the air spring. Thus, the step of sucking air is performed, thereby causing the action of the siphon.

In addition, the flow of flushing water to the supply pipe stops after a predetermined time has elapsed, whereby the flow of flushing water to the toilet is stopped. This allows the water supply pipe located upstream of the drain valve, the bypass pipe and the first chamber to be open to atmospheric air, as a result of which the pneumatic balloon in the suction tank is reduced. The air in the second chamber enters the toilet drainage channel in the process of reducing the air balloon. Thus, the air discharge step is performed.

No special control device is required in a traditional air intake device for a toilet drainage channel, as air is drawn in from the toilet drainage channel synchronously with the flushing water supply to the toilet. Accordingly, the air suction device has a simple structure. Patent Document 1: JP-A-H07-54388.

However, the action of the siphon occurs when the amount of flushing water supplied to the toilet is small, since the stage of air suction is performed simultaneously with the supply of flushing water to drain into the toilet in the above-described traditional air suction device for toilet drainage channel. Accordingly, the effect of the siphon is weaker than the effect of the siphon caused by the use of potential energy obtained by supplying flushing water to the toilet, so that the water level in the toilet becomes quite high. In this case, there is the possibility that the wastewater may not be sufficiently drained from the toilet into the toilet drainage channel.

In addition, the action of the siphon caused by the suction phase is completed when almost all the water intended for flushing flows into the toilet and into the toilet drainage channel so that the water lock is disturbed. In this case, when the shutter is destroyed, an unpleasant sound is produced.

The present invention has been made in view of the above circumstances associated with conventional devices. An object of the present invention is to provide an air suction device for a toilet drainage channel that can perform a good and silent toilet flushing.

The present invention provides an air suction device for a toilet drainage channel, provided with such an air suction device that draws air from a toilet drainage channel connected to a rear part of the water closure of the toilet body, while the air suction device has a negative pressure generator and a suction tank connected between the negative pressure generator and the toilet drainage channel, and the air intake device comprises a control device a phenomenon that controls the completion of the air suction stage, during which air is sucked from the toilet drainage channel by the suction tank, and the implementation of the air discharge step, during which air is discharged into the toilet drainage channel by the suction tank, while the control device performs the air suction step after the supply starts flushing water to the toilet of the toilet body, and the stage of air discharge - before completing the supply of washing water to the toilet of the toilet body.

In the designed air suction device for the toilet drainage channel according to the present invention, air suction is performed in a state where the water level in the toilet is sufficiently high after flushing water has been supplied to the toilet, so that a siphon is triggered. Therefore, the action of the siphon is performed more strongly, using the potential energy obtained by raising the water level in the toilet, as a result of which the sewage can be reliably drained into the drainage channel of the toilet.

In addition, when the step of discharging air is completed before completing the supply of flushing water to the toilet, the discharged stream is destroyed by increasing the amount of air in the toilet drainage channel, so that the siphon can be stopped. In this case, no unpleasant sounds are produced, since the water shutter is not disturbed.

Therefore, an air suction device for a toilet drainage channel according to the invention can produce a good and silent toilet flushing.

In the air suction device according to the invention, it is preferable that the control device performs the step of discharging air while the discharged stream, due to the action of the siphon, is continuous in the toilet drainage channel after rinsing water has been supplied to the toilet. In this case, the action of the siphon can be reliably terminated by performing the stage of air discharge.

In the air suction device according to the invention, it is preferable that the control device performs an air drainage step after the supply of washing water to the toilet has been interrupted and before the supply of washing water to the toilet is again resumed to form a water seal. In this case, since the action of the siphon is reliably completed, a water lock with a predetermined water level can be formed.

In the air suction device according to the invention, it is preferable that the suction tank has an internal separation into the first chamber and the second chamber using a movable diaphragm moving up and / or down, which is determined during installation of the suction tank, it is also preferable that the first chamber connected to the negative pressure generator, and the second chamber connected to the toilet drainage channel.

In this case, the action of the siphon can be caused and it can be stable, since a predetermined amount of air is sucked from the toilet drainage channel, in accordance with the internal volume of the suction tank. In addition, the inner part of the suction tank is divided by the diaphragm into the first and second chambers and only the second chamber is connected to the toilet drainage channel, whereby rinsing water containing wastewater, odor-containing air, and similar contaminants are reliably insulated and prevented leakage towards the generator of negative pressure.

Different negative pressure generators can be used only if these generators can generate negative pressure. For example, a mechanical pump or a similar pump can be used, and their use is different from using an ejector, which generates negative pressure due to the supply of flushing water.

The invention is illustrated in the drawings,

where FIG. 1 is a view showing a frame shape of a Western-style toilet with flushing water, equipped with an air suction device for a toilet drainage channel, in accordance with embodiments 1 and 2;

FIG. 2 is a schematic block diagram showing a control device of an air suction device for embodiments 1 and 2;

FIG. 3 is a timing chart explaining the operation of a flushing toilet in Embodiment 1; and

FIG. 4 is a timing chart explaining the operation of a flushing toilet in Embodiment 2 of the invention.

Explanation of reference characters:

1 - toilet body

2 - toilet

4 - water shutter

5 - toilet drainage channel

30 - ejector (negative pressure generator)

80 - suction tank

200 - air intake device

C - control device

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments 1 and 2 of the invention of a western flush toilet will be described in accordance with the drawings. An air suction device for a toilet drainage channel in accordance with the present invention is used in a toilet with flushing water.

Embodiment 1 of the Invention

A Western-type toilet with flushing water of Embodiment 1 of the invention comprises a toilet body 1 and a flushing device S, as shown in FIG. 1. The seat and toilet lid in the drawings are removed.

The toilet housing 1 has a rim 3 formed along the upper inner peripheral part of the toilet 2. The toilet housing 1 is formed with an upward flow guide 2b extending upward from the lower end of the toilet 2 and together with a water lock 4 is located in the lower inner part of the toilet 2. the flow guide 2b of the toilet body 1 is connected to the connecting pipe, in which the toilet drainage channel 5, part 6 for settling water and the outlet 7 of the drainage pipe are defined.

The toilet flushing device S comprises a flushing water supply device 100 and an air suction device 200 for the toilet drainage channel 5.

The flushing water supply device 100 comprises a water pipe 10 connected to a water pipe and a first on / off valve V1 opening and closing a water pipe 10.

The water pipe 10 is connected to a water shutoff valve V5 of a water pipe exiting the floor or wall surface of the toilet room in which the toilet housing 1 is installed. In addition, the filter device 11 is combined with a shut-off water valve and a filter, a constant flow valve 12 is provided upstream with respect to the first on-off valve V1, and a vacuum removal device 13 is provided upstream with respect to the first on-off valve V1.

The ejector 30, used as a negative pressure generator, has an inlet 31 connected to a part of the water pipe 10 and located upstream of the device for removing vacuum. The ejector 30 has an outlet 32 to which an inlet 21 of the tank 20 is connected, so that the flushing water contained in the tank 20 can cause water to flow through the outlet 22.

The tank 20 has an inlet chamber 25 connected to the inlet 21 and the outlet chamber 26, which is connected through the near-bottom space to the inlet chamber 25 and which is connected to the outlet 22. The inlet chamber 25 is provided with an atmosphere-connected opening 23 to which a second on-off valve V2. The inlet chamber 25 includes a vortex chamber 29 into which washing water is discharged from a nozzle orifice 50 connected to the outlet 32 of the ejector 30 so that a vortex flow is generated. A feed pipe 40 is connected to the outlet 22, which extends to the rim 3 of the toilet body 1.

The ejector 30 has a suction port 33 connected to the outside. A suction port 33 draws the wash water out of the outlet 32 so as to simultaneously draw in air.

The air suction device 200 of the toilet drainage channel 5 has a negative pressure storage tank 70, a suction tank 80 similar to that described below.

The suction port 33 of the ejector 30 is connected through a first connecting pipe 110 provided with a check valve 111, with a storage tank 70 having a negative pressure and maintaining this negative pressure. Accordingly, an ejector 30 forming a water supply assembly of the washing water supply device 100 is also used for the air suction device 200.

The second connecting pipe 120 branches off from the first connecting pipe 110 and is located closer to the storage tank 70 with a negative pressure than the check valve 111. The second connecting pipe 120 is equipped with a third on-off valve V3, located halfway through the pipe and connecting to the outer space. The third connecting pipe 130 also branches off from the first connecting pipe 110 and is provided with a fourth on-off valve V4 located halfway through the pipe. The third connecting pipe 130 is connected to a suction tank 80, which draws air from the toilet drainage channel 5.

The suction tank 80 is internally divided into a first chamber 81 and a second chamber 82 with a diaphragm 83, which is movable and moves up and / or down, this direction being determined during installation. The first chamber 81 interacts with the third connecting pipe 130, and the second chamber 82 interacts with the toilet drainage channel 5 through the suction pipe 90.

As shown in FIG. 2, the timing of the on / off switch and the duration and the closed position of the first, second, third and fourth on / off valves V1, V2, V3 and V4 are controlled by the control device C. Since the second, third and fourth on-off valves V2, V3 and V4 are designed for use with air, the valves V2, V3 and V4 are not exposed to high pressure, as a result of which these valves can change state at lower pressure than the on-off valves intended for use with water, and they are made in such a way as to open and close with less effort.

In the aforementioned Western-type toilet with flushing water, the suction device 200 of the toilet drainage channel 5 comprises an ejector 30, a first connecting pipe 110, a check valve 111, a negative pressure storage tank 70, a second connecting pipe 120, a third on-off valve V3, a third connecting pipe 130, a fourth on-off valve V4, a suction tank 80, a suction pipe 90, and a control device C. The flushing water supply device comprises a water pipe 10, a filter device 11, a constant flow valve 12, a first on-off valve V1, a vacuum removal device 13, an ejector 30, a nozzle opening 50, a tank 20, a second on-off valve V2, a supply pipe 40 , a first connecting pipe 110, a second connecting pipe 120, a third on-off valve V3, and a control device C.

In the following part of the description, the operation of the toilet flushing device S combined with the suction device 200 of the embodiment 1 of the invention will now be described based on the structure shown in FIG. one.

[No flushing step]

In FIG. 3, the first, second, third and fourth on-off valves V1, V2, V3 and V4 are closed during the non-flushing period before time t1. In this state, the wash water is stored in the tank 20. The diaphragm 83 in the suction tank 80 is adjacent to the surface of the lower inner wall of the suction tank 80.

[The stage of flushing the toilet and the stage of maintaining negative pressure]

When the user activates the flush switch to signal the control device C to start the flushing process of the toilet at time t1 in FIG. 3 after he left the toilet seat, the first on-off valve V1 is opened by the control device C.

As a result, the wash water flows through the connecting pipe 10, then flows through the ejector 30 into the vortex chamber 29. When the washing water flows in the ejector 30, the ejector 30 draws air into the negative pressure storage tank 70 through the first connecting pipe 110 and the check valve 111 The sucked-in air enters the vortex chamber 29 together with the wash water stream. Since the wash water forms vortices in the vortex chamber 29, the air contained in the wash water is successfully separated from the water, and the air must n stored in the upper inner portion of the inlet chamber 25. As a result, negative pressure is gradually stored in the storage tank 70 a negative pressure, and the water level in the inlet chamber 25 is gradually lowered correspondingly the amount of air sucked from the storage tank 70 a negative pressure.

In addition, the washing water supplied from the water pipe 10 and the washing water stored in the tank 20, the amount of which corresponds to the amount of air sucked from the negative pressure storage tank 70, are supplied through the supply pipe 40 to the rim 3. The washing water supplied into the rim 3, flows downward, at the same time swirling in a vortex flow along the inner surface of the toilet 2, thus forming a vortex flow. Waste water is collected in a swirl flow to the central part of toilet bowl 2. Toilet paper softens and collects with flushing water, scattering in the flushing water.

[Air suction stage]

The fourth on-off valve V4 opens at time t2 in FIG. 3 device C control. As a result, the negative pressure in the negative pressure storage tank 70 is transmitted through the first connecting pipe 110, the third connecting pipe 130 and the fourth on-off valve V4 to the first chamber 81 of the suction tank 80, whereby the pressure in the first chamber 81 becomes negative. In addition, since the flushing water is constantly supplied to the ejector 30, the air in the first chamber 81 is also sucked by the ejector 30. Therefore, the diaphragm 83 in the suction tank 80 rises quickly due to the negative pressure in the negative pressure storage tank 70 in the initial stage the process of opening the fourth on-off valve V4. After that, when the suction of air by the negative pressure storage tank 70 is stopped, the diaphragm 83 slowly rises up only due to the action of the ejector 30 until the diaphragm 83 abuts against the surface of the upper inner wall of the suction tank 80.

When the air in the toilet drainage channel 5 is to be sucked into the second chamber 82 by the suction tank 80, the water level in the toilet 2 is brought to a sufficiently high state by the flushing water that was supplied to the toilet 2 during the toilet flushing step, as a result of which the difference in water pressure between the water level in the toilet 2 and the highest portion 4a of the water shutter 4 is large enough. As a result, the potential energy of the flushing water, due to the difference in water pressure and air intake from the toilet drainage channel 5, leads to the fact that the flushing water in the toilet 2 rushes into the toilet drainage channel 5, as a result of which the toilet drainage channel 5 is quickly filled with washing water, thus producing a strong siphon action. Accordingly, the effluent can be quickly formed with less rinsing water. The filling condition of the toilet drainage channel 5, which should cause the siphon, is achieved not only due to the condition of the toilet drainage channel 5, completely filled with flushing water, but also due to the state when the pressure balance is maintained between the side upstream and the side which is located upstream of the toilet drainage channel 5, and the outflow is caused, and the filled state of the toilet drainage channel 5 includes a case where air remains in the toilet Nominal drainage channel 5.

In this case, the wastewater collected to the center of the toilet 2 by the vortex flow formed in the toilet 2 is reliably removed into the toilet drainage channel 5 together with the flushing water flowing into the toilet drainage channel 5 by the action of a siphon.

In addition, the toilet drainage channel 5 is disconnected from the side located upstream of the water settling section 6 so that the toilet drainage channel 5 becomes a closed space existing between the water closure 4 and the water settling section 6. Accordingly, when a predetermined amount of air can be reliably sucked out of the toilet drainage channel 5, the action of the siphon can also be caused.

In addition, the inner part of the suction tank 80 is divided by the diaphragm 83 into the first and second chambers 81 and 82, and only the second chamber 82 is connected to the toilet drainage channel 5. Accordingly, flushing water containing waste water, air containing an unpleasant odor and the like, are reliably blocked and their falling into the storage tank 70 of negative pressure or the ejector 30 is prevented.

[Stage of increasing wash water]

The water level in the toilet 2 is reduced to such a height that it is near the lowest level 2a of the rear of the toilet 2 at time t3 in FIG. 3. At this point in time, the third on-off valve V3 opens, and the fourth on-off valve V4 is closed by the control device C.

In this case, since the washing water is still supplied to the ejector 30, a large amount of external air enters the vortex chamber 29 through the third on-off valve V3, the second connecting pipe 120 and the first connecting pipe 110. Accordingly, the washing water in the inlet chamber 25 is driven through the outlet the chamber 26 and the supply pipe 40 to the rim 3 by the incoming air from the outer space. As a result, the water level in the inlet chamber 25 is rapidly and substantially reduced.

The amount of flushing water supplied to the rim 3 increases before the air enters from the toilet 2 into the toilet drainage channel 5 and the action of the siphon is terminated, i.e. earlier than the water level in the toilet 2 becomes lower than the lowest water level corresponding to the portion 2a in the rear of the toilet 2. In other words, the flushing water supplied from the rim 3 is an addition to the flushing water supplied from the water pipe 10, and rinsing water stored in the tank 20. Accordingly, since the amount of rinsing water supplied to the toilet 2 in a predetermined period of time increases, the water shutter 4 is not destroyed, the rinsing water in the toilet forms swirls and the action of the siphon continues I am. In addition, the flow of water with swirls in the toilet 2 increases its intensity and the flow of flushing water increases. Therefore, the wastewater remaining in the toilet 2 is discharged in such a way that it is forcibly discharged into the toilet drainage channel 5, and lightweight wastewater elements floating in the wash water can be drained into the toilet drainage channel 5.

[Air Release Stage]

The flushing water supplied to the toilet 2 during the step of increasing the flushing water still forms turbulence at time t4 in FIG. 3, and the water lock 4 is not destroyed. In other words, the discharge flow, due to the action of the siphon, is continuous. At this point in time t4, the first on-off valve V1 is closed and the fourth on-off valve V4 is opened by the control device C. As a result, atmospheric pressure is introduced into the first chamber 81, thereby lowering the diaphragm 83, since the first chamber 81 of the suction tank 80 is connected to the outside through a fourth on-off valve V4, a third connecting pipe 130, a first connecting pipe 110, a second connecting pipe 120 and a third on-off valve valve V3. Accordingly, since air leaves the second chamber 82 into the toilet drainage channel 5, the amount of air in the toilet drainage channel 5 increases. For this reason, the toilet drainage channel 5 cannot be left in a state of full filling with flushing water, in accordance with which the siphon is stopped. The fact that the toilet drainage channel 5 cannot be left in a state of full filling with flushing water includes the case when the sides upstream and downstream of the toilet drainage channel 5 remain pressure balanced, even when the air remains in the toilet drainage channel 5, that is, in a state where the drainage flow is induced but cannot be maintained. In this case, no noise caused by the destruction of the water shutter 4 is not produced.

[Recovery phase]

The first and second on-off valves V1 and V2 are open, and the fourth on-off valve V4 is closed by the control device C at time t5 in FIG. 3. As a result, the flushing water flows into the vortex chamber 29, while the ejector 30 draws in air from the outside. The air contained in the wash water is successfully separated in the vortex chamber 29, to then exit through the atmospheric opening 23 and the second on-off valve V2 into the outer space. Accordingly, the wash water is stored in the tank 20 until a predetermined water level is reached before starting the wash operation. In addition, the action of the siphon was completely completed and the flushing water is supplied from the exhaust chamber 26 through the supply pipe 40 to the rim 3, as a result of which a water lock 4 with a given water level is formed in the toilet 2, so the toilet restores its original state.

[Opening phase]

The first on-off valve V1 is closed, and the fourth on-off valve V4 is opened by the control device C at time t6 in FIG. 3. As a result, the first chamber 81 of the suction tank 80 is connected to the external space through the fourth on-off valve V4, the third connecting pipe 130, the first connecting pipe 110, the second connecting pipe 120 and the third on-off valve V3, as a result of which the diaphragm 83 moves down until until the diaphragm 83 abuts against the surface of the lower inner wall of the suction tank 80. Therefore, since the diaphragm 83 returns to the predetermined position before the flushing operation, the subsequent Wash can be performed steadily. After that, the second, third and fourth on-off valves V2, V3 and V4 are closed by the control device C at time t7 in FIG. 3.

Accordingly, the air suction device 200 for the toilet drainage channel 5, in accordance with Embodiment 1 of the invention, performs the toilet flushing operation successfully and silently.

Embodiment 2 of the Invention

The second embodiment of the invention of a Western-style toilet with flushing water has the same design as Option 1, and differs only in the operation of the toilet flushing device S.

The difference regarding the operation of the toilet flushing device S will be described below.

As shown in FIG. 4, the first on-off valve V1 is closed, and the fourth on-off valve V4 is opened by the control device C at time t4, after a predetermined time has elapsed from time t3 ', at which the step of increasing the rinse water supply has been completed. As a result, the first chamber 81 of the suction tank 80 is connected to the outside through the fourth on-off valve V4, the third connecting pipe 130, the first connecting pipe 110, the second connecting pipe 120 and the third on-off valve V3, whereby atmospheric pressure is introduced into the first chamber 81, thus lowering the diaphragm 83. At time t4, after a predetermined time after the stage of increasing the flow of flushing water, the flushing water is supplied to the toilet 2 due to the stage of increasing the flow of flushing full-time water, which also enters the toilet drainage channel 5 through the action of a siphon, as a result of which the amount of flushing water in the toilet 2 decreases. Accordingly, when air rushes from the second chamber 82 into the toilet drainage channel 5, the effluent established by the action of the siphon is suspended, so that the siphon can be stopped immediately and reliably. In addition, since the water shutter 4 is also not destroyed in this case, no noise due to the destruction of the water shutter 4 is produced. Since another part of the work of Embodiment 2 of the invention is similar to a similar part of the work of Option 1, a detailed description of another part of the operation of the device will be omitted.

Therefore, the air suction device 200 for the toilet drainage channel, in accordance with Embodiment 2 of the invention, can achieve the same effect of the invention in the same manner as Embodiment 1 of the invention.

Although the invention has been described as options 1 and 2 of the invention, the invention should not be limited to these options. Obviously, the invention may be appropriately modified while remaining within the scope of the invention.

The present invention can be used as a water-washed toilet.

Claims (4)

1. An air suction device for a toilet drainage channel, comprising air suction means, suction air from a toilet drainage channel connected to the rear side of the water closure of the toilet body, wherein the air suction device has a negative pressure generator and a suction tank connected between the negative generator pressure and toilet drainage channel, and the air intake device includes a control device that controls the implementation of the stage of air intake, p and the execution of which air is sucked from the toilet drainage channel by the suction tank, and the implementation of the stage of air discharge, in which the air is discharged into the toilet drainage channel by the suction tank, the control unit performs the step of suctioning air after starting the supply of flushing water to the toilet of the toilet body, and the release stage air is performed before stopping the supply of flushing water to the toilet of the toilet body. 2. The air suction device for a toilet drainage channel according to claim 1, wherein the control device is configured to bleed air while the discharge stream, due to the action of the siphon, is continuous in the toilet drainage channel after rinsing water is supplied to the toilet. 3. The air suction device for the toilet drainage channel according to claim 1, wherein the control device is configured to discharge air after the flushing water supply to the toilet has been interrupted, and before the flushing water supply to the toilet is started again, to form water shutter. 4. The air suction device for the toilet drainage channel according to any one of claims 1 to 3, in which the suction tank has an internal separation into the first chamber and the second chamber using a diaphragm configured to move up and / or down, which is determined by the installation time of the suction tank, while the first chamber is connected to the negative pressure generator, and the second chamber is connected to the toilet drainage channel.

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