JP2009084963A - Intake device of toilet bowl drainage channel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intake device of a toilet bowl drainage channel which enables a toilet bowl to be suitably cleaned irrespective of an installation place and a use situation of a toilet bowl body, and enables a space to be effectively used. <P>SOLUTION: The intake device 20 of the toilet bowl drainage channel 5 is partitioned into a first chamber 32 and a second chamber 33 by a first diaphragm 31, and the second chamber 33 is provided with a suction tank 30 communicating with the toilet bowl drainage channel 5 and an electromagnetic type driving device 40 which moves the first diaphragm 31 in an upper direction. The electromagnetic type driving device 40 is installed separated from the suction tank 30 and has a cylindrical case body 41, a moveable body 42 stored in the case body 41, and a moveable device 46 arranged at the lower end of the case body 41. The moveable device 46 incorporates a bar-like body 46B which lifts the moveable body 42 and a motor 46M which lifts and lowers the bar-like body 46B. An airtight chamber 47 which has a volume varied by the movement of the moveable body 42 and communicates with the first chamber 32 is formed in the case body 41. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

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

  FIG. 7 of Patent Document 1 discloses a conventional toilet drainage intake device. This intake device includes a suction tank and a hydraulic drive device, and sucks air from a toilet drainage channel connected downstream of the water seal portion of the toilet body.

  The suction tank is provided with a first diaphragm movably in the vertical direction when installed in the housing, and is divided into an upper first chamber and a lower second chamber by the first diaphragm. The second chamber of the suction tank communicates with the toilet drainage channel. The hydraulic drive device includes a second diaphragm that moves upward when tap water is supplied, and a rod-like member that is attached to the upper surface of the second diaphragm and that has a tip connected to the first diaphragm. .

In this intake device, when tap water is supplied to the hydraulic drive device, the second diaphragm moves upward, the rod-shaped member pushes the first diaphragm upward, and the air in the toilet drainage channel is supplied to the suction tank. Sucked into two chambers. For this reason, the toilet drainage channel is filled with washing water, and siphon action occurs. Therefore, siphon action can be generated even with a small amount of washing water, and filth can be discharged out of the toilet body.
JP-A-5-311719

  However, in the above conventional air intake device, if the usage conditions such as the area where the toilet body is installed, the building, the floor, etc., or the time zone where the toilet body is used, etc. are different, water supply per unit time of tap water Since the amount and the like change, the upward movement speed and the movement amount of the second diaphragm change. Then, the speed at which the rod-shaped member pushes up the first diaphragm changes, the air suction state of the toilet drainage channel by the second chamber varies, and there is a possibility that toilet cleaning will not be performed well.

  In other words, if the speed at which the first diaphragm is pushed upward is too fast, the second chamber will suck air from the toilet drainage channel in a state where the washing water is not sufficiently supplied to the toilet body, and the toilet drainage channel Cannot be filled with washing water, and siphon action cannot be generated. In addition, if the speed at which the first diaphragm is pushed upward is too slow or the amount of movement is small, the suction force of air from the second chamber from the toilet drainage channel becomes weak, and the toilet drainage channel is filled with washing water. Can not be generated, and also siphon action cannot be generated. If the siphon action does not occur in this way, the filth is not discharged out of the toilet body and the toilet bowl may not be washed well.

  Further, since the hydraulic drive device is disposed in the second chamber of the suction tank, the suction tank becomes large. For this reason, a large space is required for installing the suction tank.

  The present invention has been made in view of the above-described conventional situation, and can perform toilet cleaning well regardless of the installation location and usage of the toilet body, and can effectively use the space. The problem to be solved is to provide an air intake device for a toilet drainage channel.

The intake device of the toilet drainage channel according to the present invention is an intake device for a toilet drainage channel that sucks air from a toilet drainage channel connected to the downstream side of the water seal portion of the toilet body,
A first diaphragm is provided in the housing so as to be movable in a vertical direction at the time of installation, and is partitioned into an upper first chamber and a lower second chamber by the first diaphragm, and the second chamber is the toilet drainage channel. A suction tank that is in communication with an electromagnetic drive device that sucks air in the first chamber and moves the first diaphragm upward,
The electromagnetic drive device is installed apart from the suction tank and extends in a vertical direction when installed, a movable body housed in the case main body so as to be movable in the vertical direction, A moving device provided at the lower end of the case body,
The moving device includes a rod-like body that protrudes upward and pushes up the moving body, and a motor that raises and lowers the rod-like body,
In the case body, there is formed an airtight chamber surrounded by the moving body and the moving device, the volume of which is changed by the movement of the moving body, and communicated with the first chamber by a communication pipe. Features.

  In this toilet drainage air intake device, when cleaning the toilet bowl, the rod-shaped body is moved upward by a motor to raise the moving body, expand the airtight chamber, and move the air in the first chamber to the airtight chamber Then, the first diaphragm is moved upward. Therefore, by driving the motor, the first diaphragm can be moved upward at a predetermined speed and by a predetermined movement amount at a predetermined timing. Therefore, the suction state of the air from the toilet drainage channel does not vary, and the toilet drainage channel is surely filled with the washing water, so that siphon action is reliably generated and filth can be discharged out of the toilet body.

  Further, since the electromagnetic drive device is arranged away from the suction tank, the suction tank only needs to have a volume corresponding to the amount of air sucked from the toilet drainage channel, and an increase in size can be avoided. In addition, the electromagnetic driving device can be disposed in a vacant space such as the back of the toilet bowl of the toilet bowl body, and the space can be used effectively. Furthermore, by not arranging the electromagnetic drive device above the suction tank, a low silhouette Western style flush toilet can be realized, and the degree of freedom in designing a Western style flush toilet is increased.

  Therefore, the toilet drainage intake device of the present invention can perform toilet flushing well and can effectively use the space regardless of the installation location and usage of the toilet body.

  In the intake device of the present invention, the moving body includes a cylindrical portion that extends vertically along the inner peripheral surface of the case main body, and a flange portion that extends outward from one end of the cylindrical portion and is fixed to the inner peripheral surface of the case main body. A second diaphragm comprising a central portion extending inward from the other end of the cylindrical portion, and a guide attached to the central portion for guiding the second diaphragm so that the central portion moves vertically while maintaining a horizontal state. Can have.

  In this case, since the moving body can smoothly move in the case main body, the electromagnetic drive device can suck the air in the first chamber of the suction tank satisfactorily. Therefore, the suction tank can stably suck air from the toilet drainage channel, and the siphon action is stably generated. Further, the second diaphragm is fixed to the inner peripheral surface of the case main body, and does not slide relative to the inner peripheral surface of the case main body when the movable body moves. For this reason, the second diaphragm is not easily worn, and the hermeticity of the hermetic chamber is maintained for a long time. Therefore, this electromagnetic drive device can exhibit excellent durability. Further, maintenance work such as replacement of parts of the electromagnetic drive device can be reduced.

  In the intake device of the present invention, the guide includes an upper wall attached to the lower surface of the center portion of the second diaphragm, a side wall extending downward from the periphery of the upper wall, and extending downward along the inner peripheral surface of the case body. And a flange extending outwardly from the outer peripheral edge of the lower end.

  In this case, since the side wall of the guide and the outer peripheral edge of the flange move up and down along the inner peripheral surface of the case body, the moving body smoothly moves inside the case body while keeping the central portion of the second diaphragm horizontal. It can move up and down. Further, the second diaphragm is fixed to the inner peripheral surface of the case main body, and when the moving body is raised, the second diaphragm is deformed so as to cover the outer peripheral surface of the side wall of the guide. It does not slide against. For this reason, the second diaphragm is not easily worn, and the confidentiality of the hermetic chamber is maintained for a long time. Therefore, this intake device can exhibit excellent durability. Further, it is possible to reduce maintenance work of the electromagnetic drive device such as replacement of the second diaphragm.

  In the intake device of the present invention, when the upper portion of the moving device is inserted from the lower end opening of the case body and the guide is lowered, the upper portion of the moving device can be stored inside the guide.

  In this case, the vacant space inside the guide can be used effectively, and the electromagnetic drive device can be downsized. Thereby, it is possible to easily store the electromagnetic drive device in a storage space or the like that is surrounded by the side wall of the toilet bowl body and is provided behind the toilet bowl.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment in which a toilet drainage intake device of the present invention is embodied as a Western style flush toilet will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the Western-style flush toilet of the embodiment includes a toilet body 1 and a toilet cleaning device S. Illustration of the toilet seat and toilet lid is omitted.

  The toilet body 1 has a rim 3 on the upper inner periphery of the toilet bowl 2. Further, the toilet body 1 is formed with an ascending flow path 2 </ b> A extending upward from the lower end of the toilet bowl 2, and a water seal 4 is formed below the toilet bowl 2. The ascending flow path 2A of the toilet body 1 is connected to a connecting pipe, and a toilet drainage channel 5, a retention portion 6 and a drainage port 7 are formed in the connecting pipe.

  The toilet flushing device S includes a flush water supply device 10 and an intake device 20 for the toilet drainage channel 5.

  The flush water supply device 10 is connected to a stop cock V1 attached to a water pipe drawn from a floor surface or a wall surface of a toilet room in which the toilet body 1 is installed, and is connected to a rim 3 of the toilet body 1. 11. The water guide pipe 11 is provided with a strainer device 12, a constant flow valve 13, an on-off valve V2, and a vacuum breaker 14 that incorporate a water stop valve and a strainer in order from the upstream side.

  The suction device 20 of the toilet drainage channel 5 includes a suction tank 30 provided with a first diaphragm 31 movable in a vertical direction when installed in a housing 30H, and an electromagnetic drive device that moves the first diaphragm 31 upward. 40. Although not shown, the suction tank 30 and the electromagnetic drive device 40 are surrounded by the side wall of the toilet body 1 and are disposed in a storage space formed behind the toilet bowl 2.

  The inside of the suction tank 30 is partitioned by a first diaphragm 31 into an upper first chamber 32 and a lower second chamber 33. The first chamber 32 and the second chamber 33 are airtight. The first chamber 32 communicates with an airtight chamber 47 of an electromagnetic drive device 40 described later via a communication pipe 50. The second chamber 33 is communicated with the toilet drainage channel 5 via the suction pipe 60.

  The electromagnetic drive device 40 includes a cylindrical case main body 41 extending in the vertical direction, a moving body 42 accommodated in the case main body 41 so as to be movable in the vertical direction, and a motor 46M provided at the lower end of the case main body 41 and incorporated therein. And a moving device 46 for moving the moving body 42 upward. In the case main body 41, an airtight chamber 47 is formed which is surrounded by the moving body 42 and the moving device 46 and whose volume changes as the moving body 42 moves.

  The case main body 41 has an opening 41 </ b> A through which air can enter and exit at the upper end surface. A filter is attached to the opening 41 </ b> A so that dust and the like do not enter the case main body 41. Moreover, the cylindrical case main body 41 extended in an up-down direction has the lower end opened. The upper portion of the moving device 46 is inserted into the opening from below, and the upper portion of the moving device 46 is accommodated in the case main body 41. The case main body 41 and the moving device 46 are connected so as to maintain airtightness with a packing P interposed therebetween.

  The moving body 42 is attached to the upper surface of the second diaphragm 43 having flexibility, the first guide 44 attached to the lower surface of the central portion 43C of the second diaphragm 43, and the central portion 43C of the second diaphragm 43. The second guide 45 is configured. The second diaphragm 43 extends in the vertical direction along the inner peripheral surface of the case main body 41, and extends outward from one end of the cylindrical portion 43A so as to be sandwiched and fixed by the inner peripheral surface of the case main body 41. The flange portion 43B and a central portion 43C extending inward from the other end of the cylindrical portion 43A are formed.

  The first guide 44 includes an upper wall 44A attached to the lower surface of the central portion 43C of the second diaphragm 43, and a side wall 44B extending downward from the periphery of the upper wall 44A and extending downward along the inner peripheral surface of the case body 41. A downward cup shape formed from a flange 44C extending outward from the outer peripheral edge of the lower end of the side wall 44B. The upper wall 44 </ b> A has a similar shape that is slightly smaller than the central portion 43 </ b> C of the second diaphragm 43. The first guide 44 is located at the lower part in the case main body 41 in the lowered state.

  The second guide 45 is formed of a bottom wall 45A attached to the upper surface of the central portion 43C of the second diaphragm 43, and a side wall 45B extending in the vertical direction from the periphery of the bottom wall 45A and extending along the inner peripheral surface of the case body 41. Has been. The bottom wall 45A has a similar shape larger than the upper wall 44A of the first guide 44.

  The moving body 42 can be smoothly raised and lowered in the case main body 41 by the first guide 44 and the second guide 45. That is, when the moving body 42 moves up and down, the moving body 42 moves along the inner peripheral surface of the case body 41 by the side wall 44B and the flange 44C of the first guide 44 and the side wall 45B of the second guide 45. Moving. For this reason, the central portion 43C of the second diaphragm 43 can move in the vertical direction while maintaining a horizontal state.

  Further, when the moving body 42 moves up, the second diaphragm 43 is deformed so as to cover the outer peripheral surface of the side wall 44B of the first guide 44, as shown in FIG. On the other hand, when the moving body 42 descends, as shown in FIG. 1, the second diaphragm 43 is deformed while being pressed by the lower edge of the side wall 45 </ b> B of the second guide 45. For this reason, since the 2nd diaphragm 43 does not slide with respect to the internal peripheral surface of the main body case 41, the 2nd diaphragm 43 is hard to wear and the airtightness of the airtight chamber 47 is maintained over a long period of time. Therefore, the intake device 20 can exhibit excellent durability. Further, the maintenance work of the electromagnetic drive device 40 such as replacement of the second diaphragm 43 can be reduced.

  When the moving body 42 is lowered, the upper portion of the moving device 46 is housed inside the first guide 44 as shown in FIG. For this reason, the vacant space inside the 1st guide 44 can be utilized effectively, and size reduction of the electromagnetic drive device 40 can be achieved. Thereby, the electromagnetic drive device 40 can be easily stored in the storage space provided behind the toilet bowl 2.

  The moving device 46 has a motor 46M, a screw shaft 46A rotated by the motor 46M, and a nut portion fitted on the screw shaft 46A at the lower end, and the upper end protrudes from above the moving device 46 so as to protrude from the disk 46C. Is provided with a rod-like body 46B. The upper surface of the push-up plate 46C is not fixed to the moving body 42. For this reason, the moving body 42 is pushed upward when the push-up plate 46C is raised, and is lowered by its own weight when the push-up plate 46C is lowered.

  A communication pipe 50 is connected to the side wall of the case body 41, and the airtight chamber 47 is connected to the first chamber 32 of the suction tank 30 via the communication pipe 50. An intermediate portion of the communication pipe 50 is normally open to the atmosphere, and is provided with an on-off valve 48 that closes when the moving body 42 of the electromagnetic drive device 40 moves.

  The electromagnetic driving device 40 can be installed away from the suction tank 30. For this reason, the electromagnetic drive device 40 can be arrange | positioned in the empty space of the storage space provided in the back of the toilet bowl 2 of the toilet bowl main body 1, and a space can be utilized effectively. Further, by not arranging the electromagnetic drive device 40 above the suction tank 30, a low silhouette Western style flush toilet can be realized.

  One end of a pulling chain 49 that can manually move the moving body 42 upward is attached to the upper surface of the central portion of the moving body 42, and the other end of the chain 49 is the upper end surface of the case body 41. It is pulled out from the outside.

  The toilet flushing of the Western-style flush toilet of the above embodiment is performed as follows.

  When the user operates a toilet flushing switch of a Western style flush toilet (not shown), first, the on-off valve V2 of the flush water supply device 10 is opened. As a result, washing water is supplied from the water conduit 11 to the rim 3 and flows down while turning along the inner surface of the toilet bowl 2, and a swirling flow is formed in the toilet bowl 2. This swirling flow collects filth on the center side of the toilet bowl 2, and the toilet paper loosens and blends with the wash water, and then disperses in the water. It is discharged outside the toilet body 1.

  When the wash water is supplied to the toilet bowl 2 and the water level in the toilet bowl 2 becomes sufficiently high, the electromagnetic driving device 40 is driven. That is, as shown in FIG. 2, the motor 46M of the moving device 46 is driven, the push-up plate 46C of the rod-like body 46B is raised to a predetermined height at a predetermined speed, and the moving body 42 is pushed up to a predetermined height. Thereby, the volume of the airtight chamber 47 is expanded to a predetermined amount at a predetermined speed. At this time, the on-off valve 48 provided in the communication pipe 50 is closed, and the air in the first chamber 32 of the suction tank 30 moves to the airtight chamber 47 side through the communication pipe 50.

  As the air in the first chamber 32 moves to the airtight chamber 47 side, the first diaphragm 31 rises upward to a predetermined height at a predetermined speed. Thereby, air is sucked into the second chamber 33 from the toilet drainage channel 5. At this time, the washing water overflowing from the ascending flow path 2A flows into the retention part 6, and the toilet drainage channel 5 is completely sealed between the toilet drainage channel 5 and the drain outlet 7 side. The water becomes full, siphon action occurs, and filth is discharged out of the toilet body 1.

  After a siphon action occurs and a predetermined time has elapsed, the motor 46M is rotated in the reverse direction to lower the push-up plate 46C of the rod-like body 46B. Then, the moving body 42 descends due to its own weight, and the air in the airtight chamber 47 moves to the first chamber 32 side of the suction tank 30 through the communication pipe 50, so that the first diaphragm 31 descends. Thereafter, the on-off valve 48 provided in the communication pipe 50 is opened to the atmosphere, and the airtight chamber 47 and the first chamber 32 are at atmospheric pressure, so that the moving body 42 and the first diaphragm 31 stop in the middle of descending. Without descending, it will surely descend to the lowest point.

  When the first diaphragm 31 is lowered, air is discharged from the second chamber 33 into the toilet drainage channel 5, so that the toilet drainage channel 5 cannot be maintained in a full state with the washing water, and the siphon action ends. Thereafter, the cleaning water is supplied from the cleaning water supply device 10 so that the water sealing part 4 having a predetermined water level is formed in the toilet bowl 2.

  As described above, in the inhaler 20 of the embodiment, when the toilet bowl is cleaned, the rod 46B is moved upward by the motor 46M to raise the moving body 42, enlarge the hermetic chamber 47, and the hermetic chamber 47. The air in the first chamber 32 is moved to move the first diaphragm 31 upward. For this reason, by driving the motor 46M, the first diaphragm can be moved upward by a predetermined speed and a predetermined movement amount at a predetermined timing. Therefore, the suction state of the air from the toilet drainage channel 5 does not vary, and the toilet drainage channel 5 is surely filled with washing water, so that siphon action is surely generated and filth is discharged out of the toilet body 1. Can do. In addition, by sucking air from the toilet drainage channel 5 by the air intake device 20, siphon action can be generated even with a small amount of washing water, and waste can be discharged out of the toilet body 1. Therefore, water saving of washing water is intended. Can do.

  Further, since the electromagnetic drive device 40 is disposed away from the suction tank 30, the suction tank 30 only needs to have a volume corresponding to the amount of air sucked from the toilet drainage channel 5, and avoids an increase in size. be able to. Moreover, the electromagnetic drive device 40 can be arrange | positioned in empty spaces, such as the back of the toilet bowl 2 of the toilet bowl main body 1, and a space can be utilized effectively. Furthermore, by not arranging the electromagnetic driving device 40 above the suction tank, a low-style Western-style flush toilet can be realized, and the degree of freedom in designing a Western-style flush toilet is increased.

  Therefore, the air intake device for the toilet drainage channel of the embodiment can perform toilet cleaning well and can effectively use the space regardless of the installation location and the use situation of the toilet body 1.

  When the motor 46M cannot be driven due to a power failure or the like, the opening / closing valve V2 is manually opened and then the chain 49 is manually lifted to move the moving body 42 upward. As a result, the first diaphragm 31 of the suction tank 30 moves upward and air is sucked from the toilet drainage channel 5, so that the toilet drainage channel 5 is filled with washing water and siphon action occurs, and the waste is removed from the toilet bowl. It can be discharged out of the main body 1.

  While the present invention has been described with reference to the embodiments, it is needless to say that the present invention is not limited to the above-described embodiments and can be appropriately modified and applied without departing from the spirit thereof.

  For example, the motor 46M may be controlled to change the rising speed of the first diaphragm 31. More specifically, the motor 46M is controlled so that the ascending speed of the first diaphragm increases until a specific time elapses after the intake device 20 starts sucking air from the toilet drainage channel 5, and the intake device The suction force of air from 20 toilet drainage channels 5 is strengthened. Thereafter, the motor 46M is controlled so that the rising speed of the first diaphragm 31 is slowed, and the suction force of air from the toilet drainage channel 5 of the intake device 20 is weakened. If it does in this way, it will produce a siphon action reliably after the suction device 20 starts the suction of the air from the toilet drainage channel 5 until it passes a specific time, and heavy filth is discharged out of the toilet body 1. Thereafter, the siphon action can be continued to discharge light filth from the toilet body 1.

  The present invention can be used for a Western style flush toilet.

It is a schematic diagram of a Western style flush toilet equipped with an air intake device for a toilet drainage channel of an embodiment. It is a schematic diagram which shows the toilet bowl washing | cleaning state of the western style flush toilet bowl provided with the suction device of the toilet drainage channel of the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Toilet body 4 ... Water seal part 5 ... Toilet drainage channel 30 ... Suction tank 30H ... Housing 31 ... 1st diaphragm 32 ... 1st chamber 33 ... 2nd chamber 40 ... Electromagnetic drive device 41 ... Case main body 42 ... Moving body 43 ... 2nd diaphragm 43A ... Cylindrical part 43B ... Gutter part 43C ... Central part 44, 45 ... Guide (44 ... 1st guide, 45 ... 2nd guide)
46 ... Moving device 46B ... Rod-like body 46M ... Motor 47 ... Airtight chamber 50 ... Communication pipe

Claims (4)

In the intake device of the toilet drainage channel that sucks air from the toilet drainage channel connected to the downstream side of the water seal part of the toilet body,
A first diaphragm is provided in the housing so as to be movable in a vertical direction at the time of installation, and is partitioned into an upper first chamber and a lower second chamber by the first diaphragm, and the second chamber is the toilet drainage channel. A suction tank in communication with the
An electromagnetic drive device for sucking air in the first chamber and moving the first diaphragm upward;
The electromagnetic drive device is installed apart from the suction tank and extends in a vertical direction when installed, a movable body housed in the case main body so as to be movable in the vertical direction, A moving device provided at the lower end of the case body,
The moving device includes a rod-like body that protrudes upward and pushes up the moving body, and a motor that raises and lowers the rod-like body,
In the case body, there is formed an airtight chamber surrounded by the moving body and the moving device, the volume of which is changed by the movement of the moving body, and communicated with the first chamber by a communication pipe. Features a toilet drainage intake device. The movable body includes a cylindrical portion extending vertically along the inner peripheral surface of the case main body, a collar portion extending outward from one end of the cylindrical portion and fixed to the inner peripheral surface of the case main body, and the cylinder A second diaphragm comprising a central portion extending inward from the other end of the portion;
2. The toilet drainage intake device according to claim 1, further comprising a guide that is attached to the central portion and guides the second diaphragm so that the central portion moves in a vertical direction while maintaining a horizontal state.   The guide includes an upper wall attached to the lower surface of the central portion of the second diaphragm, a side wall extending downward from the peripheral edge of the upper wall and extending downward along the inner peripheral surface of the case body, and an outer side of the lower end of the side wall. The air intake device for a toilet drainage channel according to claim 2, wherein the air intake device is formed from a flange extending outward from the peripheral edge.   4. The toilet drainage intake device according to claim 3, wherein when the upper portion of the moving device is inserted from the lower end opening of the case body and the guide is lowered, the upper portion of the moving device is accommodated inside the guide.

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