JP2009114836A - Air intake device of drainage channel of toilet bowl - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air intake device of a drainage channel of a toilet bowl which can always generate siphon action and which makes possible favorable cleaning of the toilet bowl regardless of the installation place of the toilet bowl and use conditions. <P>SOLUTION: The air intake device 20 of the drainage channel 5 of the toilet bowl is provided with a suction tank 30 and a drive 40. A first barrier 31 is provided in the housing 30H of the suction tank 30, which is partitioned into a first chamber 32 and a second chamber 33 by the first barrier 31. The second chamber 33 is connected to the drainage channel 5 of the toilet bowl. The drive 40 sucks the air in the first chamber 32 and moves the first barrier 31 in the upward direction. Then the drive 40 has a cylindrical case body 41 and a mobile body 42 stored in the case body 41, and an airtight chamber 47 is formed in the case body 41. The airtight chamber 47 is surrounded by the mobile body 42 and a bottom wall 41B, and is connected to the first chamber 32 by a communicating duct 50. The mobile body 42 is pulled out from the case body 41 to the outside, and a chain 39 used for raising the mobile body 42 in the upward direction is connected to it. <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, a 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-described conventional intake device, an abnormality such as tap water not being supplied to the hydraulic drive device occurs, and if the second diaphragm is not moved upward, the first diaphragm is not pushed upward, and siphon action is performed. It cannot be generated. In this case, there is a possibility that toilet cleaning is not performed well.

  In addition, if the usage conditions such as the area where the toilet bowl is installed, buildings, floors, etc., and the time zone where the toilet bowl is used, etc., the amount of water supplied per unit time will change. For this reason, the upward movement speed and 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 Insufficient wash water cannot be allowed to flow in, 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 sufficient flushing water is contained in the toilet drainage channel. Cannot flow in, and 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.

  The present invention has been made in view of the above-described conventional situation, and can always generate a siphon action, and can perform toilet flushing satisfactorily regardless of the installation location and usage status of the toilet body. Providing a suction device for a drainage channel is a problem to be solved.

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 movable in the vertical direction at the time of installation is provided in the housing, 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 communicated with the first tank, and a drive device for sucking air in the first chamber and moving the first diaphragm upward,
The drive device has a cylindrical case body that extends in the up-down direction at the time of installation, and a moving body that is housed in the case body so as to be movable in the up-down direction.
The case body has a bottom wall that seals the lower end,
In the case body, an airtight chamber is formed that is surrounded by the movable body and the bottom wall, changes in volume due to the movement of the movable body, and communicates with the first chamber by a communication pipe,
The moving body is connected to a pulling tool that is pulled out from the case body and pulls the moving body upward.

  In the air suction device for the toilet drainage channel, the user can manually lift the lifting tool to move the moving body upward and generate a siphon action. In addition, the user can move the moving body upward by pulling up the lifting tool while confirming the increase / decrease in the amount of washing water in the toilet bowl and the occurrence of the siphon action. And waste can be discharged out of the toilet body.

  Therefore, the inhaler of the present invention can always generate a siphon action, and can perform toilet cleaning well regardless of the installation location and usage situation of the toilet body.

  As the pulling tool, various types such as a chain such as a ball chain, a wire, and an organic fiber rope can be adopted.

The movable body includes a cylindrical portion that extends vertically along the inner peripheral surface of the case main body, a flange that extends outward from one end of the cylindrical portion and is fixed to the inner peripheral surface of the case main body, and the other end of the cylindrical portion. A second diaphragm comprising a central portion extending inwardly;
A guide that is attached to the central portion and guides the second diaphragm so that the central portion moves in the vertical direction while maintaining a horizontal state.

  In this case, since the moving body can smoothly move in the case main body, the lifting tool can be easily pulled up manually to move the moving body in the upward direction. 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 airtightness of the airtight chamber can be maintained for a long time. Therefore, this intake device can exhibit excellent durability. Further, it is possible to reduce maintenance work such as replacement of the drive device parts.

  The guide has 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, extending downward along the inner peripheral surface of the case body, and outward from the outer peripheral edge of the lower end of the side wall. And a flange extending in the direction.

  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. 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. Does not slide against.

The driving device has a moving device that is connected to an opening provided in the bottom wall and moves the moving body in an upward direction.
The moving device may include 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 this case, since the moving body can be pushed up by driving the motor, toilet cleaning can be performed satisfactorily only by the user operating the drive switch for driving the motor. In addition, when the motor cannot be driven due to a power failure or the like, the toilet can be satisfactorily washed by manually lifting the lifting tool and moving the moving body upward.

  The drive device may include a guide tool that is provided above the case main body and passes through the lifting tool in the vertical direction. When the user manually pulls up the lifting tool, the lifting tool is pulled up through the guide tool. For this reason, it is possible to prevent the lifting tool from interfering with other members such as the washing water supply apparatus incorporated in the toilet body, and the lifting tool can be easily pulled upward. Therefore, the moving body can be manually pulled up smoothly.

  Embodiments 1 to 3 in which the toilet device drainage intake device of the present invention is embodied as a Western style flush toilet will be described below with reference to the drawings.

  As shown in FIGS. 1 and 2, the Western-style flush toilet of Example 1 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 on-off valve V2 has a cleaning handle H that is detachably attached to a drive shaft that opens and closes the valve.

  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 a drive device 40 that moves the first diaphragm 31 upward. It has. Although not shown, the suction tank 30 and the driving device 40 are surrounded by a 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 the driving 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 driving 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, a lower end connected to the moving body 42, and an upper end at the case main body 41. And a chain 49 which is a lifting tool pulled out from the upper end surface of the lens. The upper end of the chain 49 is connected to the cleaning handle H, and the cleaning handle H is detachably attached to the drive shaft of the on-off valve V2. Thus, since the upper end of the chain | strand 49 is arrange | positioned in the specific position of the toilet bowl washing | cleaning apparatus S, the user can grasp | ascertain the position of the upper end of the chain | strand 49 easily. In addition, the upper end of the chain 49 can be prevented from entering the case body 41.

  The lower end of the case body 41 is sealed by the bottom wall 41B. In the case main body 41, an airtight chamber 47 is formed which is surrounded by the moving body 42 and the bottom wall 41 </ b> B and whose volume changes as the moving body 42 moves. On the upper end surface of the case body 41, an opening 41A through which air can enter and exit is formed. A filter is attached to the opening 41 </ b> A so that dust and the like do not enter the case main body 41.

  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, a side wall 44B extending downward along the inner peripheral surface of the case body 41 from the periphery of the upper wall 44A, and the side wall 44B. It has a downward cup shape formed from a flange 44C extending outward from the outer peripheral edge of the lower end. 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 smoothly rises and falls while maintaining the horizontal state, so that the chain 49 can be easily pulled up manually to move the moving body 42 upward.

  As shown in FIG. 2, when the moving body 42 is lifted by the user removing the cleaning handle H from the drive shaft of the on-off valve V <b> 2 and manually lifting the chain 49, the second diaphragm 43 is connected to the first guide 44. It deform | transforms so that the outer peripheral surface of the side wall 44B may be coat | covered. On the other hand, when the pulled-up chain 49 is loosened, the moving body 42 descends due to its own weight. At this time, 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.

  Thus, since the second diaphragm 43 does not slide with respect to the inner peripheral surface of the case body 41 when the moving body 42 moves up and down, the second diaphragm 43 is not easily worn and the airtightness of the airtight chamber 47 is improved. Can be kept for a long time. Therefore, the intake device 20 can exhibit excellent durability. In addition, the maintenance work of the driving device 40 such as replacement of the second diaphragm 43 can be reduced.

  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 an open / close valve 48 is provided that closes when the moving body 42 of the drive device 40 moves.

  The driving device 40 can be arranged away from the suction tank 30. For this reason, the 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 drive device 40 above the suction tank 30, a low-style Western-style flush toilet can be realized, and the degree of freedom in designing a Western-style flush toilet is increased.

  The toilet flushing of the Western-style flush toilet according to Example 1 is performed as follows.

  The user manually operates the cleaning handle H attached to the drive shaft of the on-off valve V2 to open the on-off valve V2. 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.

  The user removes the washing handle H from the drive shaft of the on-off valve V2 after confirming that the washing water is supplied to the toilet bowl 2 and the water level in the toilet bowl 2 is sufficiently high after a predetermined time has elapsed. 49 is manually pulled up at once. Thereby, as shown in FIG. 2, the moving body 42 rises to a predetermined height, and the volume of the airtight chamber 47 is expanded. 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.

  When the air in the first chamber 32 moves to the airtight chamber 47 side, the first partition wall 31 rises upward. Thereby, air is sucked into the second chamber 33 from the toilet drainage channel 5. At this time, since the washing water overflowing from the ascending flow path 2A flows into the retention part 6 and the space between the toilet drainage channel 5 and the drainage port 7 side is completely sealed, the air from the toilet drainage channel 5 Is sucked into the toilet drainage channel 5 from the water seal 4 side, and a strong siphon action is generated. For this reason, the filth is reliably discharged out of the toilet body 1.

  The user confirms that the water level in the toilet bowl 2 is lowered after holding the state where the siphon action is generated and the chain 49 is pulled up for a predetermined time, and attaches the washing handle H to the drive shaft of the on-off valve V2. When the raised chain 49 is loosened, the moving body 42 descends due to its own weight. As a result, the air in the hermetic 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 is lowered. Thereafter, the on-off valve 48 provided in the communication pipe 50 is released 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, and the cleaning water in the toilet drainage channel 5 is pushed into the water seal 4 side and the retention unit 6 side. For this reason, the flow of the washing water in the toilet drainage channel 5 is divided, and the siphon action is finished. Thereafter, the cleaning water is supplied from the cleaning water supply device 10 so that the sealing water having a predetermined water level is formed in the water sealing part 4 in the toilet bowl 2, and the user manually operates the cleaning handle H. The on-off valve V2 is closed, and toilet flushing is terminated.

  As described above, in the intake device 20 according to the first embodiment, when the toilet is washed, the user can reliably move the moving body 42 upward by manually pulling up the chain 49. In addition, the user can pull up the chain 49 and move the moving body 42 upward while confirming the increase / decrease in the amount of washing water in the toilet bowl 2 and the occurrence of the siphon action, so that the siphon action is reliably generated. The filth can be discharged out of the toilet body 1.

  Therefore, the intake device 20 according to the first embodiment can always generate a siphon action, and the toilet bowl can be satisfactorily washed regardless of the installation location and usage state of the toilet body 1.

  As shown in FIGS. 3 to 5, the Western-style flush toilet of the second embodiment is provided with an opening in the bottom wall 41 </ b> B of the case body 41 of the first embodiment, and the moving device 42 moves the moving body 42 upward in this opening. The drive device 400 to which 46 is connected is provided. The on-off valve V2 of the cleaning water supply device 10 can be opened and closed by manually operating the cleaning handle H, and an electromagnetic actuator (not shown) is incorporated and can be opened and closed by electromagnetic drive. Since the other configuration is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 3, in the driving device 400 according to the second embodiment, the upper portion of the moving device 46 is inserted into the opening provided in the bottom wall 41 </ b> B of the case main body 41 from below, and the upper portion of the moving device 46 is the case main body 41. It is stored inside. 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 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 fixed to the 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.

  The driving device 400 can also be arranged away from the suction tank 30. For this reason, the drive device 400 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, since the drive device 400 is not disposed above the suction tank 30, a low-style Western-style flush toilet can be realized, and the degree of freedom in designing the Western-style flush toilet is increased.

  The toilet flushing of the Western-style flush toilet of Example 2 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 by electromagnetic drive. As a result, as in the first embodiment, washing water is supplied from the water conduit 11 to the rim 3, and a swirling flow is formed in the toilet bowl 2. When washing water is supplied to the toilet bowl 2 and the water level in the toilet bowl 2 becomes sufficiently high, the driving device 400 is driven. That is, as shown in FIG. 4, 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. Thus, as in the first embodiment, air is sucked into the second chamber of the suction tank 30 from the toilet drainage channel 5, and the washing water flows into the toilet drainage channel 5 from the water seal portion 4 side. A siphon action is generated, and the filth is reliably discharged out of the toilet body 1.

  When the siphon action occurs and a predetermined time elapses, the motor 46M is rotated in the reverse direction to lower the push-up plate 46C of the rod-like body 46B, so that the moving body 42 is lowered by its own weight. As a result, the air in the hermetic 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 is lowered. 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. As a result, the siphon action is terminated as in the first embodiment. Thereafter, the flush water is supplied from the flush water supply device 10 so that the sealed water having a predetermined water level is formed in the water seal part 4 in the toilet bowl 2, and the toilet bowl cleaning is completed.

  Thus, in toilet bowl washing | cleaning apparatus S1 of Example 2, toilet cleaning can always be performed favorably only by a user operating a toilet bowl washing switch. Further, in the inhaler 200 of the second embodiment, when performing toilet flushing, the first diaphragm 31 is moved by raising the push-up plate 46C by a predetermined speed and a predetermined movement amount by a motor 46M at a predetermined timing. Under a predetermined timing, it can be moved upward by a predetermined speed and a predetermined movement amount. For this reason, the suction state of the air from the toilet drainage channel 5 does not vary, and the washing water can be forced into the toilet drainage channel 5 from the water seal 4 side, so that a strong siphon action is surely generated. Thus, the filth can be reliably discharged out of the toilet body 1. In addition, by sucking air from the toilet drainage channel 5 by the intake device 200, siphon action can be generated even with a small amount of washing water, and filth can be discharged out of the toilet body 1. Can do.

  Further, when the motor 46M cannot be driven due to a power failure or the like, the user can manually perform toilet cleaning as shown in FIG. In other words, the user first manually opens the on-off valve V2 by manually operating the cleaning handle H attached to the drive shaft of the on-off valve V2. Thus, as in the first embodiment, washing water is supplied to the toilet bowl 2, and after a predetermined time or more has elapsed, the washing handle H is removed from the drive shaft of the on-off valve V2, and the chain 49 is manually pulled up at once. Thereby, air is attracted | sucked from the toilet drainage channel 5, a strong siphon effect | action generate | occur | produces, and waste can be reliably discharged | emitted out of the toilet body main body 1. FIG.

  The user holds the state where the siphon action is generated and the chain 49 is pulled up for a predetermined time, and then attaches the cleaning handle H to the drive shaft of the on-off valve V2, and loosens the pulled chain 49. Thereby, like Example 1, air is discharged | emitted in the toilet drainage channel 5, and a siphon action is complete | finished. Thereafter, washing water is supplied into the toilet bowl 2, and sealed water having a predetermined water level is formed in the water sealing part 4. The user manually operates the washing handle H to close the on-off valve V2, and finishes toilet flushing. Thus, even when the motor 46M cannot be driven due to a power failure or the like, the toilet bowl can be satisfactorily washed.

  Therefore, the intake device 200 of the second embodiment can also always generate a siphon action, and can perform toilet flushing favorably regardless of the installation location and use situation of the toilet body 1.

  As shown in FIGS. 6 and 7, the Western-style flush toilet of Example 3 is provided above the case main body 41 of the driving device 400, and includes a guide tool 49A that vertically inserts a ball chain 49T that is a lifting tool. Have. The guide tool 49A is formed of a cylindrical member having a slit 49S formed on the side surface from the upper end to the lower end and extending in the vertical direction. The guide 49A is a water receiver that receives the dew condensation water generated on the outer surface of the valve unit including the strainer device 12, the constant flow valve 13, the on-off valve V2, and the vacuum breaker 14 of the cleaning water supply device 10 and the overflow water from the vacuum breaker 14. It is formed integrally with the tool 18. The water receiver 18 is fixed to a frame 17 fixed to the upper surface of the rear part of the toilet body 1 and is disposed above the upper surface of the rear part of the toilet body 1. For this reason, the ball chain 49T inserted through the guide tool 49A can be easily pulled upward without interfering with the cleaning water supply device 10 and the like. Therefore, the moving body in the driving device 400 can be manually pulled up smoothly.

  Since the wire portion connecting the balls of the ball chain 49T can be inserted through the slit 49S of the guide 49A, by pulling the ball chain 49T upward while inserting the wire portion from the lower end of the slit 49S. The ball chain 49T can be inserted into the guide tool 49A. Since the ball of the ball chain 49T is larger than the width of the slit 49S, and the cleaning handle H is connected to the upper end of the ball chain 49T, the ball chain 49T does not come off the guide tool 49A. For this reason, even if the hand is released from the cleaning handle H, the ball chain 49T is caught on the upper end of the guide tool 49A. Therefore, it is possible to prevent the cleaning handle H and the ball chain 49T from being dropped into the storage space in which the driving device 400 and the like are stored behind the toilet bowl 2 of the toilet body 1.

  As shown in FIG. 6, the downstream drainage pipe 8 which forms the toilet drainage channel 5 inside is connected to the downstream end of the rising flow path of the toilet body 1 of the third embodiment. At the downstream end of the downstream drainage pipe 8, a drainage connector 9 having a staying portion 6 formed therein and having a drainage port 7 is connected. The drain port 7 communicates with a drain pipe drawn to the floor surface of the toilet room in which the toilet body 1 (not shown) is installed.

  As shown in FIGS. 6 and 7, the washing water supply device 10 of the third embodiment includes a water conduit 11 connected to the stop cock V <b> 1 and communicating with the rim of the toilet body 1. The water conduit 11 includes a strainer device 12 incorporating a strainer, a constant flow valve 13, an on-off valve V2, and a vacuum breaker 14, and a flexible hose having pressure resistance connected to the upstream and downstream sides of the valve unit. It is composed of The flexible hose connected to the upstream side of the valve unit is pulled out from the rear part of the toilet body 1 and connected to the stop cock V1. On the other hand, the flexible hose connected to the downstream side of the valve unit has a nozzle 11N attached to the tip and communicates with the rim of the toilet body 1.

  When the strainer device 12 rotates and removes the lid member 12H at the upper end, the upper end is opened and the strainer can be removed. The on-off valve V2 opens and closes a diaphragm valve as a main valve by opening and closing the pilot valve. The on-off valve V2 is provided with two pilot valves. One pilot valve is driven to open and close by the electromagnetic actuator 15, and the other pilot valve is driven to open and close by manually operating the drive shaft 16. . The cleaning handle H is detachably attached to the distal end portion of the drive shaft 16.

  The intake device of the third embodiment includes the suction tank 30 and the driving device 400 having the same configuration as that of the second embodiment. As shown in FIG. 6, the suction tank 30 and the driving device 400 are surrounded by a side wall 1 </ b> A of the toilet body 1 and are disposed in a storage space formed behind the toilet bowl 2.

  As shown in FIG. 8, the Western-style flush toilet of Example 3 is attached to the rear upper surface of the Western-style toilet body 1, and supports a toilet lid 71 and a toilet seat (not shown) so as to be rotatable, and a storage case 70. And a cover 72 that covers the upper surface of the storage case 70 in a detachable manner. In the storage case 70, the cleaning water supply device 10 of the toilet bowl cleaning device S2 is stored. The storage case 70 is attached so as to close the upper opening of the storage space in which the suction tank 30 and the driving device 400 are stored. An opening 73 through which a part of the cleaning water supply device 10 is exposed is provided on the upper surface of the storage case 70. The strainer can be removed by rotating the lid member 12H of the strainer device 12 from the opening 73. Further, the cleaning handle H attached to the drive shaft 16 of the other pilot valve of the on-off valve V2 can be manually operated from the opening 73. Further, as shown in FIG. 9, the cleaning handle H detached from the drive shaft 16 can be manually pulled up. The same components as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  The toilet flushing of the Western-style flush toilet of Example 3 is performed as follows.

  Normally, a cover 72 is mounted on the upper surface of the storage case 70. When a user operates a toilet flushing switch of a Western style flush toilet (not shown), first, one pilot valve of the on-off valve V2 of the flush water supply device 10 is opened by the electromagnetic actuator 15, and the diaphragm valve as the main valve is opened. I speak. The toilet cleaning after this is the same as in Example 2, and a strong siphon action occurs, and after the filth is reliably discharged out of the toilet body 1, the siphon action ends and the water in the toilet bowl 2 is removed. Sealing water having a predetermined water level is formed in the sealing part 4 and toilet cleaning is completed.

  Thus, also in the toilet bowl cleaning device S2 of the third embodiment, the toilet bowl can be satisfactorily cleaned only by the user operating the toilet bowl cleaning switch at all times. In addition, the suction state of the air from the toilet drainage channel 5 does not vary, and the washing water can be forced into the toilet drainage channel 5 from the water seal 4 side, so that a powerful siphon action is reliably generated. Thus, the filth can be reliably discharged out of the toilet body 1. Moreover, since siphon action can be generated even with a small amount of washing water and waste can be discharged out of the toilet body 1, water saving of washing water can be achieved.

  If the motor of the drive device 400 cannot be driven due to a power failure or the like, the user first removes the cover 72 from the upper surface of the storage case 70 as shown in FIGS. The cleaning handle H attached to the drive shaft 16 of the other pilot valve of the on-off valve V2 is manually operated through an opening 73 provided on the upper surface of the valve 70 to open the diaphragm valve of the main valve. As a result, as in the first and second embodiments, cleaning water is supplied to the toilet bowl 2, and after a predetermined time has elapsed, the cleaning handle H is removed from the pilot valve drive shaft 16, and the ball chain 49T is manually pulled up at once. . At this time, since the ball chain 49T is inserted through the guide tool 49A, the ball chain 49T can be easily pulled upward without interfering with the cleaning water supply device 10 and the like. For this reason, the moving body in the drive device 400 can be pulled up manually and smoothly. Thereby, air is attracted | sucked from the toilet drainage channel 5, a strong siphon effect | action generate | occur | produces, and waste can be reliably discharged | emitted out of the toilet body main body 1. FIG.

  After the siphon action has occurred and the ball chain 49T has been pulled up and held for a predetermined time, the user attaches the cleaning handle H to the drive shaft 16 of the pilot valve and loosens the raised ball chain 49T. Thereby, like Example 1 and Example 2, air is discharged | emitted in the toilet drainage channel 5, and a siphon action is complete | finished. Thereafter, the washing handle H is manually operated to close the diaphragm valve of the main valve, and the toilet flushing is finished. After the siphon action is finished in the toilet bowl 2, washing water is supplied, and sealed water having a predetermined water level is formed in the water sealing part 4. As described above, even when the motor of the driving device 400 cannot be driven due to a power failure or the like, the toilet bowl can be satisfactorily washed.

  Therefore, the intake device 200 according to the third embodiment can always generate the siphon action, and the toilet bowl can be satisfactorily washed regardless of the installation location and the use situation of the toilet body 1.

  In the above, the present invention has been described with reference to the first to third embodiments. However, the present invention is not limited to the above-described embodiments, and it is needless to say that the present invention can be appropriately modified and applied without departing from the spirit of the present invention. Absent.

  For example, in Example 2 or Example 3, 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 the toilet drainage channel of Example 1. 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 Example 1. FIG. It is a schematic diagram of the Western-style flush toilet bowl provided with the suction device of the toilet drainage channel of Example 2. 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 Example 2. FIG. It is a schematic diagram which shows the toilet bowl washing | cleaning state at the time of the power failure of the western-style flush toilet bowl provided with the suction device of the toilet drainage channel of Example 2. FIG. It is a perspective view of the western style flush toilet equipped with the air intake apparatus of the toilet drainage channel of Example 3. It is a partially expanded view of a Western style flush toilet equipped with an air intake device for a toilet drainage channel of Example 3. It is an external view of a Western style flush toilet equipped with an air intake device for a toilet drainage channel of Example 3. It is a partially expanded external view of the Western-style flush toilet bowl provided with the suction device of the toilet drainage channel of Example 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Toilet body 4 ... Water seal part 5 ... Toilet drain channel 20, 200 ... Intake device 30 ... Suction tank 30H ... Housing 31 ... 1st diaphragm 32 ... 1st chamber 33 ... 2nd chamber 40, 400 ... Drive device 41 ... Case body 41B ... Bottom wall 42 ... Moving body 47 ... Airtight chamber 49 ... Chain (pull-up tool)
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 movable in the vertical direction at the time of installation is provided in the housing, 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 communicated with the first tank, and a drive device for sucking air in the first chamber and moving the first diaphragm upward,
The drive device has a cylindrical case body that extends in the up-down direction at the time of installation, and a moving body that is housed in the case body so as to be movable in the up-down direction.
The case body has a bottom wall that seals the lower end,
In the case body, an airtight chamber is formed that is surrounded by the movable body and the bottom wall, changes in volume due to the movement of the movable body, and communicates with the first chamber by a communication pipe,
A suction device for a toilet drainage channel, wherein the moving body is connected to a lifting tool that is pulled out from the case body and pulls the moving body upward. The movable body includes a cylindrical portion that extends vertically along the inner peripheral surface of the case main body, a flange that extends outward from one end of the cylindrical portion and is 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 driving device includes a moving device that is connected to an opening provided in the bottom wall and moves the moving body in an upward direction.
3. The toilet apparatus according to claim 1, wherein 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.   The said drive device is an air intake apparatus of the toilet drainage channel provided with the guide tool which is provided above the said case main body and penetrates the said pulling tool up and down.

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