JP2021139173A - Private part washing device - Google Patents

Abstract

To provide a private part washing device capable of hygienically washing a washing nozzle that ejects washing water to a human body private part.SOLUTION: The private part washing device comprises: a washing nozzle that can be moved back and forth between a washing position and a retreat position and ejects the washing water to a human body private part at the washing position; and a cylinder that has at least one washing liquid inlet to which washing liquid is supplied from the outside and covers at least a part of the washing nozzle over an entire circumference, wherein the at least one washing liquid inlet is formed in the cylinder so that the washing liquid flows into a gap between the cylinder and the washing nozzle and swirls along an outer peripheral surface of the washing nozzle.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to a local cleaning device attached to a toilet bowl.

Conventionally, a local cleaning unit having a nozzle for discharging cleaning water from a local cleaning hole toward a local part of the human body and being attached to a nozzle base of a main body that rotatably supports the toilet seat, and a local cleaning hole of the nozzle are cleaned. A local cleaning device including a nozzle cleaning unit for cleaning is known (see, for example, Patent Document 1). In this local cleaning device, the nozzle cleaning unit is a nozzle locally formed in an internal space formed by a cleaning base plate provided for the nozzle base, a cleaning cover attached to the cleaning base plate, and a cleaning base plate and a cleaning cover. Includes a tubular body arranged to wrap around the cleaning holes. A nozzle cleaning hole is formed in the tubular body, and the periphery of the local cleaning hole of the nozzle is cleaned by cleaning water supplied from the outside to the internal space and flowing into the tubular body from the nozzle cleaning hole.

Further, conventionally, a hot water cleaning device including a nozzle that moves forward and backward so as to be able to take a use posture of protruding from the housing on the upper surface of the rear part of the toilet bowl to clean the buttocks of the human body and a retracted posture of retracting into the housing is known (for example). , Patent Document 2). This hot water cleaning device is connected to a case surrounding the nozzle in the retracted retracted posture in the housing, a nozzle cleaning water supply means for supplying water for cleaning the nozzle in the case, and a rear end of the nozzle. Includes a water supply pipe that is inserted through an opening provided on the rear surface of the case. A flange is provided at the rear end of the nozzle, and an O-ring is mounted on the rear surface of the flange. When the nozzle flange retracts until it abuts on the rear surface of the case, the O-ring comes into close contact with the rear surface of the case and the opening is watertightly closed. As a result, the nozzle retracted in the case can be immersed in water for cleaning, or the nozzle in the case can be sprayed with water for cleaning.

Further, conventionally, a sanitary cleaning device that forms cleaning bubbles on the surface of a cleaning nozzle to suppress the adhesion of filth is also known (see, for example, Patent Document 3). This sanitary cleaning device has a heat exchanger that heats the cleaning water, a cleaning nozzle driving unit that drives the cleaning nozzle forward and backward, a foam generating unit that generates cleaning foam containing detergent, and cleaning water or cleaning foam on the inner surface of the toilet bowl. It includes a spray nozzle for discharging, a spray nozzle drive unit for rotating the direction of the discharge port of the spray nozzle, and an on-off valve for opening and closing a water channel to the spray nozzle. As a result, the cleaning nozzle can be cleaned by discharging the cleaning foam generated in the foam generating portion from the spray nozzle to the surface of the cleaning nozzle. Further, conventionally, a toilet bowl including a toilet bowl body, a toilet seat, and a human body cleaning nozzle for ejecting water containing no bactericide or cleaning agent is known (see, for example, Patent Document 4). In this cleaning toilet bowl, the human body cleaning nozzle is cleaned by spraying a bactericidal agent or a cleaning agent on the surface of the human body cleaning nozzle during, after, or immediately before the ejection of water.

Japanese Patent No. 6260156 Japanese Patent No. 421544 Japanese Unexamined Patent Publication No. 2016-1967332 Japanese Unexamined Patent Publication No. 2012-052331

In the local cleaning device described in Patent Document 1, cleaning water for cleaning the nozzle is introduced into the tubular body covering the nozzle through the internal space formed by the cleaning base plate and the cleaning cover. .. Therefore, the water flow in the tubular body becomes weak, and the filth adhering to the nozzle may not be sufficiently removed. Further, in the hot water cleaning device described in Patent Document 2, since the nozzle is cleaned while stopped in the case, the filth removed from the nozzle may remain in the case and become unsanitary. There is also a risk that filth will enter the ejection holes of the nozzle. Further, in the devices described in Patent Documents 3 and 4, the water flow for cleaning the nozzle is insufficient, and the cleaning foam (detergent) or the disinfectant sprayed on the nozzle may remain attached to the nozzle. be.

Therefore, a main object of the present disclosure is to provide a local cleaning device capable of hygienically cleaning a cleaning nozzle that ejects cleaning water to a local part of the human body.

The local cleaning device of the present disclosure is a local cleaning device including a cleaning nozzle that is moved back and forth between a cleaning position and a retracted position and ejects cleaning water to a local part of a human body at the cleaning position, and a cleaning liquid is supplied from the outside. A cylinder having at least one cleaning liquid inlet and covering at least a part of the cleaning nozzle over the entire circumference is included, and the at least one cleaning liquid introduction port allows the cleaning liquid to flow into a gap between the cylinder and the cleaning nozzle. It is formed in the cylinder so as to be swiveled along the outer peripheral surface of the cleaning nozzle.

In the localized cleaning apparatus of the present disclosure, at least a part of the cleaning nozzle is covered with a cylinder having at least one cleaning liquid inlet to which the cleaning liquid is supplied from the outside. Further, the at least one cleaning liquid introduction port is formed in the cylinder so that the cleaning liquid flows into the gap between the cylinder and the cleaning nozzle and swirls along the outer peripheral surface of the cleaning nozzle. As a result, while the cleaning nozzle is moved from the cleaning position to the retracting position, or while the cleaning nozzle is moved to the retracting position, the cleaning liquid is supplied to at least one cleaning liquid inlet, so that the outer periphery of the cleaning nozzle is inside the cylinder. The filth adhering to the cleaning nozzle can be stripped off by the cleaning liquid swirling along the surface, and the cleaning liquid can be discharged to the outside through the gap between the cylinder and the cleaning nozzle. Further, by swirling the cleaning liquid along the outer peripheral surface of the cleaning nozzle, it is possible to sufficiently secure the flow strength of the cleaning liquid, and the cleaning liquid is spread over the entire circumference of the cleaning nozzle to improve the filth. Can be removed. As a result, the local cleaning device of the present disclosure can hygienically clean the cleaning nozzle that ejects cleaning water locally on the human body.

Further, the at least one cleaning liquid inlet may be formed in the cylinder so that the cleaning liquid flows into the gap along the tangential direction of the inner peripheral surface of the cylinder. As a result, it is possible to better secure the strength of the flow of the cleaning liquid that swirls along the outer peripheral surface of the cleaning nozzle.

Further, even if the cylinder includes a plurality of filth removing protrusions protruding inward in the radial direction at intervals in the circumferential direction from the inner peripheral surface of the tip portion so as to be in sliding contact with the outer peripheral surface of the cleaning nozzle. good. In such a local cleaning device, when the cleaning nozzle is moved from the cleaning position to the retracted position, the filth adhering to the outer peripheral surface of the cleaning nozzle is physically peeled off by a plurality of filth removing protrusions, and the adjacent filth removing protrusions are adjacent to each other. It can be discharged to the outside together with the cleaning liquid through the gap between the two. This makes it possible to further improve the removal performance of dirt adhering to the cleaning nozzle in the local cleaning device.

Further, a plurality of the cleaning liquid introduction ports may be formed in the cylinder at intervals in the axial direction, and among the plurality of cleaning liquid introduction ports, the cleaning liquid introduction ports formed at least on the tip end side of the cylinder. May be formed so as to swirl the cleaning liquid along the outer peripheral surface of the cleaning nozzle.

Further, the cylinder may include a small inner diameter portion on the base end side and a large inner diameter portion on the tip end side having an inner diameter larger than the small inner diameter portion, and the cleaning liquid introduction port may include the small inner diameter portion. It may be formed in each of the portion and the large inner diameter portion. As a result, the cleaning liquid is swirled along the outer peripheral surface of the cleaning nozzle in the large inner diameter portion of the cylinder to satisfactorily remove the filth adhering to the cleaning nozzle, and the cleaning liquid supplied to the small inner diameter portion is used to wash away the filth and the like. Is possible.

Further, a filth removing member may be movably arranged in the gap between the inner peripheral surface of the large inner diameter portion and the cleaning nozzle. As a result, the filth removing member can be swirled together with the cleaning liquid in the large inner diameter portion of the cylinder, and the filth adhering to the cleaning nozzle can be satisfactorily removed.

Further, an ultrasonic vibrator may be attached to the cylinder. As a result, by supplying the cleaning liquid to the cleaning liquid inlet and operating the ultrasonic vibrator in a state where the cleaning liquid is distributed over the entire circumference of the cleaning nozzle, the filth adhering to the cleaning nozzle is removed more effectively. It becomes possible to do.

Further, the cleaning liquid may be at least one of water (including warm water), air bubble-containing water, cleaning agent-containing water and sterilizing water. In this case, the same type of cleaning liquid may be supplied to the plurality of cleaning liquid inlets, or different types of cleaning liquid may be supplied to the plurality of cleaning liquid inlets. Further, different types of cleaning liquids may be supplied to the same or different cleaning liquid inlets at intervals.

Further, the local cleaning device may include an air supply unit that supplies air to the inside of the cylinder. As a result, after cleaning the cleaning nozzle with the cleaning liquid, air is supplied from the air supply unit to the inside of the cylinder to quickly dry the inside of the cylinder and the cleaning nozzle, and the generation of mold can be suppressed satisfactorily. It will be possible.

Further, the cylinder may be fixed on the base plate of the casing that rotatably supports the toilet seat so that the tip end side is located below the base end side, and the outer peripheral surface of the tip end portion of the cylinder and the base plate. A seal member may be arranged between them, and a seal member may be arranged between the outer peripheral surface of the base end portion of the cleaning nozzle and the inner peripheral surface of the cylinder. As a result, it is possible to satisfactorily suppress the adhesion of filth from the outside to the outer peripheral surface of the cylinder and to prevent the cleaning liquid from leaking from the inside of the cylinder into the casing.

It is a perspective view which shows the toilet bowl which attached the local cleaning apparatus of this disclosure. It is a perspective view which shows the cleaning nozzle and cylinder included in the local cleaning apparatus of this disclosure. It is a schematic block diagram which shows the main part of the local cleaning apparatus of this disclosure. It is a vertical cross-sectional view which shows the cleaning nozzle and cylinder included in the local cleaning apparatus of this disclosure. It is sectional drawing along the VV line in FIG. It is a front view which shows the cleaning nozzle and cylinder included in the local cleaning apparatus of this disclosure. It is sectional drawing which shows the cleaning nozzle and cylinder included in the local cleaning apparatus of this disclosure. It is a flowchart which illustrates the cleaning procedure of the cleaning nozzle in the local cleaning apparatus of this disclosure. It is a vertical cross-sectional view which shows the other cylinder applicable to the local cleaning apparatus of this disclosure. It is a flowchart which illustrates the cleaning procedure of the cleaning nozzle in the local cleaning apparatus including the cylinder of FIG.

Next, a mode for carrying out the invention of the present disclosure will be described with reference to the drawings.

FIG. 1 is a perspective view showing a toilet bowl 1 to which the local cleaning device 10 of the present disclosure is attached. The toilet bowl 1 shown in the figure is a Western-style sitting toilet bowl, and the local cleaning device 10 is fixed to the upper surface of the toilet bowl 1. As shown in the figure, the local cleaning device 10 includes a casing (main body) 11, a toilet seat 12 rotatably supported by the casing 11, and a stool rotatably supported by the casing 11 like the toilet seat 12. The lid 13 and the operation panel 14 are included.

The casing 11 of the local cleaning device 10 includes a resin base plate (base member) 110 fixed to the upper surface of the toilet bowl 1 and a resin cover 111 detachably attached to the base plate 110. Inside the casing 11 (base plate 110 and cover 111), a tail cleaning nozzle 15 and a bidet nozzle (not shown) are arranged as human body cleaning nozzles for ejecting cleaning water which is water or hot water to a local part of the human body, respectively.

As shown in FIGS. 2 and 3, the buttocks cleaning nozzle 15 is supported by a substantially cylindrical cylinder (cylinder body) 20 fixed to the base plate 110 so as to be movable back and forth (sliding) in the axial direction. The tail cleaning nozzle 15 has a water supply passage 15L extending in the axial direction and a ejection hole 15H (both of which see FIG. 4) that communicate with the water supply passage 15L and open on the outer peripheral surface. The cylinder 20 can accommodate almost the entire portion of the buttocks cleaning nozzle 15 except for a part on the tip end side, and the tip end side (left end side in FIG. 3) is from the base end side (right end side in FIG. 3). Is also fixed to the base plate 110 so that it is located below.

Further, the tail cleaning nozzle 15 is provided by the actuator 17 including the motor M, the gear mechanism G, the belt B, etc. so as to be located at either the retracted position in the casing 11 or the cleaning position on the toilet bowl side of the toilet bowl 1. It is moved back and forth with respect to the cylinder 20 (base plate 110). That is, by rotating the motor M in one direction and pushing out the belt B via the gear mechanism G, the tail cleaning nozzle 15 can be advanced to the cleaning position. On the other hand, by rotating the motor M in the other direction (reverse direction) and winding the belt B via the gear mechanism G, the buttocks cleaning nozzle 15 can be retracted to the retracted position. The bidet nozzle (not shown) is also supported by a cylinder having the same configuration as the cylinder 20 so as to be movable back and forth in the axial direction, and the retracted position in the casing 11 and the cleaning of the toilet bowl side of the toilet bowl 1 are carried out by the same actuator as the actuator 17. It can be moved back and forth in the axial direction to and from the position.

Further, as shown in FIG. 3, the casing 11 of the local cleaning device 10 is provided with a movable shutter 18. The shutter 18 is pressed and opened by the buttocks cleaning nozzle 15 or the like which is moved to the cleaning position by the actuator 17 or the like. When the buttocks cleaning nozzle 15 or the like moves to the retracted position, the shutter 18 is urged and closed by a spring (not shown) to cover the buttocks cleaning nozzle 15 and the tips of the bidet nozzle. As a result, it is possible to suppress the dirt on the buttocks cleaning nozzle 15, the bidet nozzle, and the peripheral portion thereof, or to hide both of them to maintain the aesthetic appearance.

Further, inside the casing 11, a valve unit connected to a water pipe (water source) via a branch faucet and a water supply hose, a water tank connected to the valve unit, a tail cleaning nozzle 15, a bidet nozzle and a water tank. A rotary valve (water condition adjustment switching valve), etc. (all not shown) connected to is housed. The valve unit includes a strainer, a check valve, a constant flow rate valve, a water stop solenoid valve, a relief valve and the like. The water tank has a heater and a temperature sensor for heating water from a water pipe (water source), and can store hot water heated by the heater. The rotary valve selectively switches the supply destination of the cleaning water from the water tank between the cleaning nozzle 15 and the bidet nozzle, and adjusts the amount of cleaning water supplied to the cleaning nozzle 15 and the like.

In addition, inside the casing 11, a hot air supply unit 19 (air supply unit) including a heater, a blower, and the like, and a control device 30 that controls the entire local cleaning device 10 are housed (see FIG. 3 for both). ). The control device 30 is a microcomputer including a CPU, ROM, RAM, etc. (not shown). The control device 30 includes a valve unit, a water tank heater, a tail cleaning nozzle 15, a bidet nozzle actuator 17, a rotary valve, warm air, etc., based on signals from an operation panel 14, a seating sensor, a water tank temperature sensor, and the like. Controls the supply unit 19 and the like. The local cleaning device 10 may be provided with a heat exchanger having a heater for heating water from the water source instead of the water tank.

FIG. 4 is a cross-sectional view showing the buttocks cleaning nozzle 15 and the cylinder 20, and FIG. 5 is a cross-sectional view taken along the line VV in FIG. As shown in these drawings, the cylinder 20 includes a first cylinder 21 (small inner diameter portion) and a second cylinder 22 (large inner diameter portion) separate from the first cylinder 21. The first cylinder 21 is formed of, for example, a resin in a relatively long cylindrical shape, and has a constant inner diameter larger than the outer diameter of the buttocks cleaning nozzle 15. Further, on the tip end side (left end side in the drawing) of the first cylinder 21, a diameter-expanded portion 210 having an outer diameter larger than that of the base end side (right end side in the drawing) is formed.

Further, a cylindrical cleaning liquid introduction port 215 that opens on the inner peripheral surface of the first cylinder 21 is formed in a portion on the base end side of the first cylinder 21. As can be seen from FIGS. 6 and 7, the cleaning liquid introduction port 215 has an axial center orthogonal to the first plane P1 including the axial center of the first cylinder 21 (cylinder 20), and the first cylinder 21 (cylinder 20). ) Is included and is integrally with the first cylinder 21 so as to be offset to one side (right side in the figure) along the first plane P1 from the second plane P2 which is orthogonal to the first plane P1. It is formed. However, the cleaning liquid introduction port 215 formed separately from the first cylinder 21 may be fixed to the first cylinder 21.

The second cylinder 22 is formed of, for example, a short cylindrical shape made of resin, and has an inner diameter larger than the inner diameter of the first cylinder 21, and more specifically, is substantially the same as the outer diameter of the enlarged diameter portion 210 of the first cylinder 21. Has an inner diameter. Further, a reduced diameter portion 220 having an inner diameter substantially the same as that of the first cylinder 21 is formed at the tip end (left end in the drawing) of the second cylinder 22. The reduced diameter portion 220 has a plurality of filth removing protrusions 221 protruding inward in the radial direction at intervals in the circumferential direction from the inner peripheral surface so as to be in sliding contact with the outer peripheral surface of the buttocks cleaning nozzle 15. As shown by the broken line in FIG. 3, each filth removing protrusion 221 extends in a direction inclined with respect to the axis of the second cylinder 22 (cylinder 20).

As shown in FIGS. 4 and 5, a diameter-expanded portion 210 of the first cylinder 21 is coaxially fitted or press-fitted to the end of the second cylinder 22 opposite to the diameter-reduced portion 220 of the second cylinder 22. It is fixed to the cylinder 22. An annular groove is formed on the outer peripheral surface of the enlarged diameter portion 210, and the first and third seal members 23 such as an O-ring arranged between the groove and the inner peripheral surface of the second cylinder 22 form an annular groove. The gap between the second cylinders 21 and 22 is sealed. Further, a seal member 24 such as an O-ring is arranged between the outer peripheral surface of the reduced diameter portion 220 (the tip end portion of the cylinder 20) of the second cylinder 22 and the base plate 110.

The buttocks cleaning nozzle 15 is housed inside the cylinder 20 including the first and second cylinders 21 and 22 with the tip portion slightly protruding from the diameter-reduced portion 220 when in the retracted position. Further, the buttocks cleaning nozzle 15 is slidably supported by the inner peripheral portion of the enlarged diameter portion 210 of the first cylinder 21 and the plurality of filth removing protrusions 221 formed in the reduced diameter portion 220 of the second cylinder 22. Will be done. An annular groove is formed at the base end of the buttocks cleaning nozzle 15, and a seal member 25 such as an X ring is arranged between the groove and the inner peripheral surface of the first cylinder 21. The gap between the cleaning nozzle 15 and the first cylinder 21 is sealed.

As shown in FIGS. 4 and 5, an annular gap (internal space) X communicating with the cleaning liquid introduction port 215 is defined between the outer peripheral surface of the buttocks cleaning nozzle 15 and the inner peripheral surface of the first cylinder 21. Will be done. Further, between the enlarged diameter portion 210 of the first cylinder 21 and the reduced diameter portion 220 of the second cylinder 22 in the axial direction, the outer peripheral surface of the tail cleaning nozzle 15 and the inner peripheral surface of the second cylinder 22 are relatively close to each other. A gap (internal space) Y having a short shaft length is defined. In the present embodiment, when the buttocks cleaning nozzle 15 is in the retracted position, the ejection hole 15H of the buttocks cleaning nozzle 15 is located in the gap Y. Further, the gap Y communicates with the gap X on the first cylinder 21 side through the groove formed in the inner peripheral portion of the diameter-expanded portion 210, and the gap between the adjacent filth removing protrusions 221 of the diameter-reduced portion 220. Communicate with the outside via.

A cylindrical cleaning liquid introduction port 225 that opens in the gap Y is formed in the second cylinder 22 at a distance between the cleaning liquid introduction port 215 and the cylinder 20 in the axial direction. As shown in FIG. 7, the cleaning liquid introduction port 225 is orthogonal to the second plane P2 including the axis of the second cylinder 22 (cylinder 20), and is orthogonal to the second plane P2. It is integrally formed with the second cylinder 22 so as to be offset to one side (lower side in the drawing) from the first plane P1 to the second plane P2. Further, in the present embodiment, as shown in FIG. 7, the cleaning liquid introduction port 225 extends in the tangential direction of the inner peripheral surface of the second cylinder 22. However, the cleaning liquid introduction port 225 formed separately from the second cylinder 22 may be fixed to the second cylinder 22. Further, inside the gap Y, a sphere 26 as a filth removing member is movably arranged. As shown in FIG. 7, the sphere 26 has an outer diameter corresponding to the difference between the radius of curvature of the inner peripheral surface of the second cylinder 22 and the radius of curvature of the outer peripheral surface of the tail cleaning nozzle 15. Further, on the inner peripheral surface of the second cylinder 22, a plurality of protrusions 222 are formed at intervals in the circumferential direction so that the sphere 26 in the gap Y can be pressed. The filth removing member is not limited to the sphere 26, and may be an ellipsoid or a cylinder. Further, a plurality of protrusions (not shown) may be formed on the surface of the dirt removing member.

As shown in FIG. 3, the cleaning liquid introduction port 215 of the first cylinder 21 selectively receives water from a water pipe (water source) via a valve 27 and a hose (not shown) whose opening and closing are controlled by the control device 30. Can be supplied. Further, as shown in FIG. 3, the cleaning liquid introduction port 215 selectively uses cleaning agent-containing water stored in a tank (not shown) via a valve 28 and a hose (not shown) whose opening and closing are controlled by the control device 30. Can be supplied to. Further, as shown in FIG. 3, water from the water pipe (water source) is selected for the cleaning liquid introduction port 225 of the second cylinder 22 via a valve 29 and a hose (not shown) whose opening and closing are controlled by the control device 30. Can be supplied as a target. In addition, warm air from the hot air supply unit 19 can be selectively supplied to the inside of the first cylinder 21, that is, the gap X. However, the cleaning liquid introduction ports 215 and 225 may be connected to a hot water supply source heated by a heater or the like via a valve 27 or 29.

Subsequently, a cleaning procedure for the buttocks cleaning nozzle 15 and the like in the local cleaning device 10 configured as described above will be described. Here, a procedure for cleaning the buttocks cleaning nozzle 15 according to the operation of a nozzle cleaning switch (not shown) provided on the operation panel 14 by the user will be described. Since the local cleaning device 10 is provided with a cylinder having the same configuration as the cylinder 20 for the bidet nozzle, the bidet nozzle can also be cleaned according to the procedure described below.

FIG. 8 is a flowchart illustrating a nozzle cleaning routine executed by the control device 30 in response to the operation of the nozzle cleaning switch on the operation panel 14 by the user. As shown in the figure, when the nozzle cleaning switch is operated, the control device 30 temporarily advances the buttocks cleaning nozzle 15 to the cleaning position (step S100). Next, the control device 30 opens the valve 29 so that water is supplied to the cleaning liquid introduction port 225 on the tip side of the cylinder 20 (second cylinder 22), and the tail cleaning nozzle 15 moves from the cleaning position to the retracted position. The actuator 17 is controlled so as to move backward (step S110).

The water supplied to the cleaning liquid introduction port 225 in response to the opening of the valve 29 flows into the gap Y between the second cylinder 22 and the buttocks cleaning nozzle 15. As described above, the cleaning liquid introduction port 225 is orthogonal to the second plane P2 and is offset from the first plane P1 to one side (lower side in FIG. 7) along the second plane P2. There is. Therefore, the water that has flowed into the gap Y from the cleaning liquid introduction port 225 swirls along the outer peripheral surface of the buttocks cleaning nozzle 15. Further, the water supplied to the gap Y flows down while swirling along the outer peripheral surface of the buttock cleaning nozzle 15, and the gap between the diameter-reduced portion 220 and the buttock cleaning nozzle 15, that is, the adjacent filth removing protrusions 221 are connected to each other. It flows out to the toilet bowl portion (outside) of the toilet bowl 1 through the gap. As a result, while the toilet cleaning nozzle 15 is moved from the cleaning position to the retracted position, the filth adhering to the toilet cleaning nozzle 15 is stripped off by water as a cleaning liquid that swirls inside the second cylinder 22, that is, in the gap Y. It can be discharged to the toilet bowl portion (outside) of the toilet bowl 1 through the gap between the adjacent filth removing protrusions 221 together with water.

In this way, by swirling the water along the outer peripheral surface of the buttocks cleaning nozzle 15 in the gap Y, it is possible to sufficiently secure the strength of the water flow, and the water can be spread over the entire circumference of the buttocks cleaning nozzle 15. It can be distributed and filth can be removed satisfactorily. Further, in the local cleaning device 10, the cleaning liquid introduction port 225 allows water as the cleaning liquid to flow into the gap Y along the tangential direction of the inner peripheral surface of the second cylinder 22. This makes it possible to better secure the strength of the flow of water swirling along the outer peripheral surface of the buttocks cleaning nozzle 15.

Further, a plurality of protrusions 222 are formed on the inner peripheral surface of the second cylinder 22 at intervals in the circumferential direction, and the gap Y between the inner peripheral surface of the second cylinder 22 and the buttocks cleaning nozzle 15 is formed. A sphere 26 as a filth removing member is movably arranged. As a result, the sphere 26 is swirled (moved) by the water flow while being appropriately pressed against the outer peripheral surface of the buttocks cleaning nozzle 15 by the plurality of protrusions 222 in the gap Y (see FIG. 7), and the filth adhering to the buttocks cleaning nozzle 15 is more effective. It becomes possible to peel off the target. However, a plurality of protrusions 222 may be omitted from the inner peripheral surface of the second cylinder 22. That is, even if the sphere 26 is swirled together with the cleaning liquid without pressing it against the outer peripheral surface of the buttocks cleaning nozzle 15 in the gap Y, the filth adhering to the buttocks cleaning nozzle 15 can be satisfactorily removed.

Further, the second cylinder 22 projects inward in the radial direction at intervals in the circumferential direction from the inner peripheral surface of the reduced diameter portion 220 (cylinder 20 tip portion) so as to be in sliding contact with the outer peripheral surface of the buttocks cleaning nozzle 15. Includes filth removal protrusion 221. Therefore, in the local cleaning device 10, when the stool cleaning nozzle 15 is moved from the cleaning position to the retracted position, the sewage adhering to the outer peripheral surface of the stool cleaning nozzle 15 is physically stripped off by the plurality of sewage removing protrusions 221. It can be discharged to the toilet bowl portion of the toilet bowl 1 together with water from the gap between the adjacent filth removing protrusions 221. This makes it possible to further improve the removal performance of the filth adhering to the buttocks cleaning nozzle 15 in the local cleaning device 10.

When the buttocks cleaning nozzle 15 reaches the retracted position, the control device 30 stops the actuator 17. Further, the control device 30 closes the valve 29 in order to stop the supply of water to the cleaning liquid introduction port 225 of the second cylinder 22, and at the same time, the cleaning liquid introduction port 215 on the base end side of the cylinder 20 (first cylinder 21). The valve 28 is opened for a predetermined time so that the cleaning agent-containing water is supplied to the valve 28 (step S120).

The cleaning agent-containing water supplied to the cleaning liquid introduction port 215 flows into the gap X between the first cylinder 21 and the buttocks cleaning nozzle 15. As described above, the cleaning liquid introduction port 215 is orthogonal to the first plane P1 and is offset from the second plane P2 to one side (right side in FIG. 7) along the first plane P1. .. Therefore, the cleaning agent-containing water that has flowed into the gap X from the cleaning liquid introduction port 215 also swirls along the outer peripheral surface of the buttocks cleaning nozzle 15 and the inner peripheral surface of the first cylinder 21. Further, the cleaning agent-containing water that has flowed into the gap X swirls along the outer peripheral surface of the toilet cleaning nozzle 15 and passes through a groove formed in the inner peripheral portion of the enlarged diameter portion 210 to form a gap Y on the second cylinder 22 side. It flows down from the gap Y to the toilet bowl portion (outside) of the toilet bowl 1 through the gap between the adjacent filth removing protrusions 221. As a result, the cleaning agent-containing water can be spread over the entire cleaning nozzle 15 and the entire inner peripheral surfaces of the first and second cylinders 21 and 22, and the filth can be removed even more satisfactorily. Further, by supplying the cleaning agent-containing water to the cleaning liquid introduction port 215, dirt on the sphere 26 that was not removed by the physical force acting when turning in the gap Y, dirt on the back surface of the shutter 18, and dirt on the nozzle 15 Dirt and the like on the front surface can be satisfactorily removed by the cleaning agent-containing water and / or the cleaning foam formed by the cleaning agent-containing water.

After opening the valve 28 for a predetermined time, the control device 30 closes the valve 28 and supplies water to the cleaning liquid introduction port 215 on the base end side of the cylinder 20 (first cylinder 21). To open the valve 27 for a predetermined time (step S130). The water supplied to the cleaning liquid introduction port 215 flows into the gap X, swirls along the outer peripheral surface of the toilet cleaning nozzle 15, and flows down into the gap Y on the second cylinder 22 side, so that the reduced diameter portions 220 are adjacent to each other. It flows out from the gap between the filth removing protrusions 221 to the toilet bowl portion (outside) of the toilet bowl 1. As a result, water can be distributed throughout the buttocks cleaning nozzle 15 to wash away filth and detergent-containing water (foam) remaining in the gaps X and Y.

After opening the valve 27 for a predetermined time, the control device 30 closes the valve 27 and sets the warm air supply unit 19 for a predetermined time so that warm air is supplied to the inside of the first cylinder 21. Operate (step S140). In this way, after cleaning the cleaning nozzle 15 with water or water containing a cleaning agent, warm air (air) is supplied from the warm air supply unit 19 to the inside of the cylinder 20 to clean the inside of the cylinder 20 and the bottom. The nozzle 15 can be quickly dried to satisfactorily suppress the generation of mold and the like. After operating the hot air supply unit 19 for a predetermined time, the control device 30 stops the hot air supply unit 19, thereby completing the cleaning of the buttocks cleaning nozzle 15. As a result, the local cleaning device 10 can hygienically clean the tail cleaning nozzle 15 (and the bidet nozzle) that ejects cleaning water locally on the human body.

Further, in the local cleaning device 10, the cylinder 20 is fixed on the base plate 110 of the casing 11 that rotatably supports the toilet seat 12 so that the tip end side is located below the base end side, and the second cylinder 22 is contracted. A sealing member 24 is arranged between the outer peripheral surface of the diameter portion 220 and the base plate 110. Further, a seal member 25 is arranged between the outer peripheral surface of the base end portion of the buttocks cleaning nozzle 15 and the inner peripheral surface of the first cylinder 21 (cylinder 20). As a result, it is possible to satisfactorily suppress the adhesion of filth from the outside to the outer peripheral surface of the cylinder 20, and also to prevent water and detergent-containing water from leaking from the inside of the cylinder 20 into the casing 11. Become.

In the cylinder 20, the cleaning liquid introduction port 215 may be formed in the first cylinder 21 so as to extend in the tangential direction of the inner peripheral surface of the first cylinder 21. However, the extending direction of the cleaning liquid introduction port 225 (215) is not necessarily the first as long as water or the like can flow into the gap Y (X) so as to swirl along the outer peripheral surface of the buttocks cleaning nozzle 15 or the like. The tangential direction of the inner peripheral surface of the two cylinders 22 and the like does not have to be exactly the same. Further, the cylinder 20 may be a single cylinder, or only one cleaning liquid introduction port may be formed in the cylinder 20, and three or more cleaning liquid introduction ports may be formed in the cylinder 20 at intervals in the axial direction. May be formed. Further, in the local cleaning device 10, the sphere 26 arranged in the gap Y may be omitted. Further, if the base end of the buttocks cleaning nozzle 15 is located closer to the tip side than the base end of the first cylinder 21 (cylinder 20) at the retracted position, the seal member 25 may be omitted. Further, the cylinder 20 may be configured to accommodate both the buttocks cleaning nozzle 15 and the bidet nozzle. Further, in step S120 of FIG. 8, bubble-containing water or sterilized water may be supplied as the cleaning liquid to the cleaning liquid introduction port 215. Further, when the cleaning agent-containing water, the bubble-containing water, or the disinfectant water can be selectively supplied to the cleaning liquid introduction port 225, the cleaning agent-containing water or the like is supplied to the cleaning liquid introduction port 225 in step S110 of FIG. May be supplied. Further, in the routine of FIG. 8, at least one of the processes of step S120 and step S140 may be omitted. Further, some or all of the processes in the routine of FIG. 8 may be executed when the buttocks cleaning nozzle 15 and the like are returned to the retracted position after local cleaning.

FIG. 9 is a cross-sectional view showing another cylinder 20B applicable to the above-mentioned local cleaning device 10. The cylinder 20B shown in the figure is a single cylinder having a constant inner diameter larger than the outer diameter of the buttocks cleaning nozzle 15, etc. It can be accommodated inside. As shown in the figure, in the lower part of the figure of the cylinder 20B, there is an opening 20o that opens in a range of about half of the tip side (left end side in FIG. 9) in the axial direction, and the cylinder 20B so as to close the opening 20o. A metal plate 200 as a vibrating member fixed to the metal plate 200 and an ultrasonic vibrator 50 fixed to the outer surface of the metal plate 200 are included. The ultrasonic vibrator 50 is on / off controlled by the control device 30.

Further, in the cylinder 20B, a cleaning liquid introduction port 215 and a cleaning liquid introduction port 225, which are opened on the inner peripheral surface of the cylinder 20B, are formed at intervals in the axial direction, respectively. The cleaning liquid introduction port 215 is formed in a cylindrical shape, and the cleaning liquid such as water is swirled along the outer peripheral surface of the cleaning nozzle 15 on the base end side of the cylinder 20B with respect to the cleaning liquid introduction port 225, for example, the cylinder 20B. Extends in the tangential direction of the inner peripheral surface of. Water (or hot water) from a water source can be selectively supplied to the cleaning liquid introduction port 215 via a valve and a hose (both not shown) whose opening and closing are controlled by the control device 30. Further, the cleaning liquid introduction port 225 is formed in a cylindrical shape, and the cleaning liquid such as water is swirled along the outer peripheral surface of the cleaning nozzle 15 in the vicinity of the end portion on the base end side of the opening 20o (metal plate 200). For example, it extends in the tangential direction of the inner peripheral surface of the cylinder 20B. Water (or hot water) from a water source can be selectively supplied to the cleaning liquid introduction port 225 via a valve and a hose (both not shown) whose opening and closing are controlled by the control device 30. In addition, warm air from the hot air supply unit 19 can be selectively supplied to the inside of the cylinder 20B. Further, at the tip of the cylinder 20B, a plurality of filth removing protrusions (not shown) are formed so as to slide in contact with the outer peripheral surface of the buttocks cleaning nozzle 15 so as to project inward in the radial direction at intervals in the circumferential direction from the inner peripheral surface. May be done.

FIG. 10 is a flowchart illustrating a nozzle cleaning routine executed by the control device 30 in response to the user operating the nozzle cleaning switch on the operation panel 14 in the local cleaning device 10 including the cylinder 20B. As shown in the figure, when the nozzle cleaning switch is operated, the control device 30 retracts the buttocks cleaning nozzle 15 to the retracted position or holds it in the retracted position (step S200). Next, the control device 30 opens a valve (not shown) so that water is supplied to the cleaning liquid introduction port 225 on the tip side of the cylinder 20B (step S210). The water supplied to the cleaning liquid introduction port 225 flows into the gap between the cylinder 20B and the buttocks cleaning nozzle 15, and while swirling along the outer peripheral surface of the buttocks cleaning nozzle 15, the tip (lower end) of the cylinder 20B passes through the gap. It flows down toward. As a result, water can be sufficiently distributed around the metal plate 200.

Subsequently, the control device 30 operates the ultrasonic vibrator 50 for a predetermined time (step S220). As a result, the metal plate 200 vibrates the water in a state where the water is distributed all around the metal plate 200, and the filth adhering to the metal plate 15 is removed more effectively. It becomes possible. During this time, the stripped filth flows out to the toilet bowl portion (outside) of the toilet bowl 1 together with water from the gap between the tip of the cylinder 20B and the buttocks cleaning nozzle 15. After operating the ultrasonic vibrator 50 for a predetermined time, the control device 30 closes the valve to stop the supply of water to the cleaning liquid introduction port 225, and the cleaning liquid on the base end side of the cylinder 20B. A valve (not shown) is opened so that water is supplied to the introduction port 215 (step S230). The water supplied to the cleaning liquid introduction port 215 flows into the gap between the cylinder 20B and the buttocks cleaning nozzle 15, and while swirling along the outer peripheral surface of the buttocks cleaning nozzle 15, the tip (lower end) of the cylinder 20B passes through the gap. It flows down toward. As a result, water can be distributed throughout the buttocks cleaning nozzle 15 to wash away the filth remaining in the gap.

After opening the valve for a predetermined time so that water is supplied to the cleaning liquid introduction port 215 on the base end side of the cylinder 20B, the control device 30 closes the valve and heats the inside of the cylinder 20B. The warm air supply unit 19 is operated for a predetermined time so that the air is supplied (step S240). As a result, the inside of the cylinder 20B and the buttocks cleaning nozzle 15 can be quickly dried, and the generation of mold and the like can be satisfactorily suppressed. After operating the hot air supply unit 19 for a predetermined time, the control device 30 stops the hot air supply unit 19, thereby completing the cleaning of the buttocks cleaning nozzle 15. As a result, even in the local cleaning device 10 including the cylinder 20B, it is possible to hygienically clean the tail cleaning nozzle 15 (and the bidet nozzle) that ejects cleaning water locally on the human body.

It goes without saying that the invention of the present disclosure is not limited to the above-described embodiment, and various changes can be made within the scope of the extension of the present disclosure. Furthermore, the above-described embodiment is merely a specific embodiment of the invention described in the column of the outline of the invention, and does not limit the elements of the invention described in the column of the outline of the invention.

The invention of the present disclosure can be used in the manufacturing industry of local cleaning equipment and the like.

1 toilet bowl, 10 local cleaning device, 11 casing, 110 base plate, 111 cover, 12 toilet seat, 13 toilet lid, 14 operation panel, 15 tail cleaning nozzle, 15H ejection hole, 15L water supply path, 17 actuator, 18 shutter, 19 temperature Air supply unit, 20, 20B cylinder, 20o opening, 200 metal plate, 21 1st cylinder, 210 diameter expansion part, 215 cleaning liquid introduction port, 22 2nd cylinder, 220 diameter reduction part, 221 filth removal protrusion, 222 protrusion , 225 Cleaning liquid inlet, 23, 24, 25 Seal member, 26 sphere, 27, 28, 29 valves, 30 control device, 50 ultrasonic actuator, B belt, G gear mechanism, M motor, X, Y gap.

Claims (10)

In a local cleaning device including a cleaning nozzle that is moved back and forth between a cleaning position and a retracted position and ejects cleaning water to a local part of the human body at the cleaning position.
It has at least one cleaning liquid inlet to which cleaning liquid is supplied from the outside, and also has a cylinder that covers at least a part of the cleaning nozzle over the entire circumference.
The at least one cleaning liquid introduction port is a local cleaning device formed in the cylinder so that the cleaning liquid flows into a gap between the cylinder and the cleaning nozzle and swirls along the outer peripheral surface of the cleaning nozzle. In the local cleaning device according to claim 1,
The at least one cleaning liquid inlet is a local cleaning device formed in the cylinder so that the cleaning liquid flows into the gap along the tangential direction of the inner peripheral surface of the cylinder. In the local cleaning device according to claim 1 or 2.
The cylinder is a local cleaning device including a plurality of filth removing protrusions protruding inward in the radial direction at intervals in the circumferential direction from the inner peripheral surface of the tip portion so as to be in sliding contact with the outer peripheral surface of the cleaning nozzle. In the local cleaning device according to any one of claims 1 to 3.
A plurality of cleaning liquid inlets are formed in the cylinder at intervals in the axial direction.
Among the plurality of cleaning liquid introduction ports, the cleaning liquid introduction port formed at least on the tip end side of the cylinder is a local cleaning device formed so as to swirl the cleaning liquid along the outer peripheral surface of the cleaning nozzle. In the local cleaning device according to any one of claims 1 to 4.
The cylinder includes a small inner diameter portion on the base end side and a large inner diameter portion on the tip end side having an inner diameter larger than the small inner diameter portion.
The cleaning liquid introduction port is a local cleaning device formed in each of the small inner diameter portion and the large inner diameter portion. In the local cleaning device according to claim 5.
A local cleaning device in which a filth removing member is movably arranged in a gap between the inner peripheral surface of the large inner diameter portion and the cleaning nozzle. The local cleaning device according to any one of claims 1 to 6, wherein an ultrasonic vibrator is attached to the cylinder. In the local cleaning device according to any one of claims 1 to 7.
A local cleaning device in which the cleaning liquid is at least one of water, air bubble-containing water, cleaning agent-containing water, and sterilizing water. The local cleaning device according to any one of claims 1 to 8, further comprising an air supply unit for supplying air to the inside of the cylinder. In the local cleaning device according to any one of claims 1 to 9.
The cylinder is fixed on the base plate of the casing that rotatably supports the toilet seat so that the tip end side is located below the base end side.
A sealing member is arranged between the outer peripheral surface of the tip end portion of the cylinder and the base plate.
A local cleaning device in which a seal member is arranged between an outer peripheral surface of a base end portion of the cleaning nozzle and an inner peripheral surface of the cylinder.

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