JP2007023768A - Bidet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bidet having a water pressure type nozzle without influenced on the advance of the nozzle even if a flow rate is changed while surely advancing the nozzle even in low water pressure. <P>SOLUTION: This bidet has the nozzle 53 forming wash water jetting ports 53h and 53j on the tip, a nozzle device 50 having a cylinder 51 supporting the nozzle 53 so as to freely advance and retreat, and a flow regulating valve 70 having a wash water inflow hole 71a connected to a wash water supply source and a wash water outflow hole 71d for supplying flow rate-adjusted wash water to the wash water jetting ports 53h and 53j; and is constituted so that the wash water inflow hole 71a is opened when the nozzle 53 advances. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a local cleaning apparatus that cleans a human body part after a stool, and more particularly, to a local cleaning apparatus that advances a nozzle by water pressure and performs butt cleaning or bidet cleaning using the advanced nozzle.

This type of local cleaning device installed in a Western-style toilet is configured to perform butt cleaning or bidet cleaning by extending a cleaning nozzle by a switch operation and ejecting cleaning water upward from its outlet. ing. The wash water used for local cleaning is a mix of water from the water supply pipe, which is heated to a predetermined temperature in a hot water tank installed in the device, or water from the water supply pipe and hot water from the hot water supply pipe. Appropriate hot water whose temperature is adjusted by mixing with a valve is used.
The cleaning nozzle is roughly classified according to the nozzle driving method, and is moved forward and backward by a driving source such as a motor (so-called electric nozzle), and is driven by only the water pressure of the cleaning water without a driving source (so-called hydraulic type). Nozzle). Electric nozzles are widely used in general households and the like, and at present the mainstream of cleaning nozzles. In addition, since this electric nozzle can control the position by controlling a motor or the like, a single nozzle can be used as both a butt washing nozzle and a bidet washing nozzle. This type of electric nozzle has a problem that the piping distance of the tube connecting the flow rate adjusting valve and the nozzle device inevitably increases. Also, when the tube is driven back and forth by driving the drive motor of the nozzle device, the tube swings from the rear to the front and from the front to the rear following the movement of the nozzle, so the tube swings. Within the range, it was difficult to arrange other members of the local cleaning device. Therefore, for example, there has been a problem that the casing has to be enlarged or stored in a cramped state in order to take up a space for installing the control device. In order to suppress the swinging of the tube, it is conceivable to fix the middle of the tube to the casing. In this case, the tube is fixed when the tube moves following the reciprocating movement of the nozzle of the nozzle device. The part bends as a fulcrum, narrows the flow path of the appropriate temperature water, adversely affects the local cleaning, and the fixed part of the tube becomes cracked due to repeated reciprocation, and the appropriate temperature water leaks from this crack. In other words, there is a problem that the control device or the like housed in the casing is adversely affected.

In view of these various problems, Japanese Patent Application Laid-Open No. 8-326125 discloses a local cleaning device that effectively uses a space in a casing by mounting a flow rate adjusting valve in a mounting recess provided in a lower space of a nozzle device. Has been.
On the other hand, since the hydraulic nozzle does not require a driving source such as a motor, it has an advantage that the structure is simpler and can be produced at a lower cost than the electric nozzle. However, since the structure is complicated when the position control is performed by water pressure, the butt washing nozzle and the bidet washing nozzle are usually provided separately. These flow rate adjustments are performed by flow path switching / flow rate adjustment valves provided integrally behind the nozzle cylinders.
JP-A-8-326125

However, the water pressure type nozzle has a problem that the nozzle does not advance due to fluctuations in the water pressure or the advance speed of the nozzle changes. Further, in the hydraulic nozzle having a butt / bidet, two nozzle storage spaces are required in the width direction, and further, a flow path switching / flow rate adjusting valve storage space is required in the depth direction.
On the other hand, the technique disclosed in Japanese Patent Application Laid-Open No. 8-326125 also requires a plurality of connecting tubes between the nozzle and the flow rate adjusting valve, which makes it difficult to assemble and accommodates in the width direction as compared with the prior art. I needed space.
The present invention has been made to solve the above-described problems of the prior art, and the object of the present invention is that the nozzle can be surely advanced even at a low water pressure, and even if the flow rate is changed, etc. It is to provide a local cleaning device having a hydraulic nozzle that is not affected by nozzle advancement.
Another object is that the nozzle device and the flow rate adjusting valve or the flow path switching valve can be assembled without a connecting tube, and the throat and bidet can be cleaned with one nozzle, the assembly can be simplified and two nozzles can be assembled. It is an object of the present invention to provide a local cleaning device capable of reducing the storage space for one nozzle as compared with the nozzles provided with the nozzles.

In order to achieve the above object, in the invention of claim 1, a nozzle having a cleaning water jet formed at the tip, and a nozzle device having a cylinder that supports the nozzle so as to advance and retract,
A flow rate adjusting valve having a wash water inflow hole communicated with a wash water supply source and a wash water outflow hole for supplying the wash water whose flow rate has been adjusted to the wash water outlet.
Since the washing water inflow hole is configured to be opened when the nozzle is advanced, water pressure is applied to the flow rate adjustment valve only when the nozzle is advanced, so that the pressure adjustment structure is not required for the flow rate adjustment valve, and the cost can be reduced. It becomes possible.

  According to a second aspect of the invention, in addition to the first aspect of the invention, the cylinder has a first inflow port at an upstream end and a first outflow port downstream from the first inflow port. The nozzle is advanced by the water supplied from the inlet, and the first outlet and the washing water inflow hole are connected to control water supply / stop water to the flow rate adjusting valve by the advance operation of the hydraulic nozzle. Since it comprised in this way, it becomes possible to implement | achieve with a very simple structure.

  In the invention of claim 3, in addition to the invention of claim 2, the cylinder is provided with a washing water supply chamber upstream of the first outlet and further provided with a washing water communication port at the rear end of the nozzle. Since the cleaning water communication port and the cleaning water outflow hole are connected in the cleaning water supply chamber when the nozzle advances, the connection structure between the nozzle cylinder and the flow rate adjusting valve can be realized with a very simple configuration.

  In the invention of claim 4, in addition to the invention of claim 3, since the flow rate adjusting valve is integrated with the cylinder, a connection tube becomes unnecessary, and residual water remaining in the connection tube after use of the apparatus can be eliminated. The operation at the start of next use can be performed smoothly.

  According to a fifth aspect of the invention, in addition to the fourth aspect of the invention, the flow rate adjusting valve is constituted by an outer cylindrical body and a cylindrical valve body, and a rotation shaft of the cylindrical valve body is provided in parallel with the cylinder. Therefore, the flow rate adjusting valve can be formed in a compact manner, and the dead space of the storage space in the apparatus can be used effectively.

  In the invention of claim 6, in addition to the invention of claim 5, a seal between the first outlet and the washing water inflow hole and a seal between the washing water supply chamber and the washing water outflow hole are integrated. Since the flow rate adjusting valve is integrated with the cylinder via the seal packing, the seal between the flow rate adjusting valve seal packing and the nozzle cylinder is assembled to the cylinder. As a result, the assembly is simplified.

  According to a seventh aspect of the invention, in addition to the sixth aspect of the invention, the seal packing is provided with a diaphragm portion protruding into the washing water supply chamber, and the diaphragm portion causes the washing water outflow hole, the washing water communication port, Since the diaphragm is sealed only when water pressure is applied to the diaphragm, the diaphragm does not come into contact with the nozzle before the nozzle advances, and the sliding resistance can be reduced and the force necessary for the nozzle's advance / retreat operation can be reduced. Since the nozzle can be made small, the nozzle can be driven forward reliably even in the case of a low water supply pressure, and after the nozzle has advanced, it can be reliably sealed by the diaphragm portion.

  In any of the inventions, since the mechanism supplies cleaning water to the nozzle after the nozzle is extended, it is possible to surely prevent the phenomenon from being crushed.

  According to the present invention, since the water pressure is applied to the flow rate adjustment valve only when the nozzle has advanced, the flow rate adjustment valve does not require a pressure-resistant structure, and the cost can be reduced.

Hereinafter, the present invention will be described in detail with reference to the drawings.
1 is a block diagram showing a water channel configuration of the present invention, FIG. 2 is an external perspective view of a nozzle device 50 of the present invention, FIG. 3 is an exploded perspective view of an operating cylinder 51, and FIG. 4 is an exploded perspective view of a cleaning nozzle 53, FIG. 5 is a sectional view of the cleaning nozzle when stored.
In these drawings, as shown in the figure, the local cleaning device includes a device main body 10, a hydraulic nozzle device 50, a mixing valve 30, a pressure reducing valve 41, and a solenoid valve 42 disposed in the device main body 10. , 46, a switching valve / flow control valve 70, a temperature thermistor (not shown), a check valve, etc., and the washing nozzle 53 is extended by the water pressure of the washing water W during the washing and protrudes into the toilet bowl, thereby cleaning the butt and bidet. Is configured to do.

  The nozzle device 50 is disposed in the center of the apparatus main body 10, and the mixing valve 30, electromagnetic valves 42, 46, etc. are disposed on the sleeve side (right side) provided on the apparatus main body 10 from the nozzle device 50. Further, on the right side, a water supply pipe 33 and a hot water supply pipe 34 are provided. The water supplied by the water supply pipe 33 and the hot water (around 70 ° C.) supplied by the hot water supply pipe 34 are mixed by the mixing valve 30, and the local cleaning supply pipe (31 b to 44) or the nozzle cleaning supply flow path ( 31a to 49a) is led to the nozzle device 50 as washing water (warm water of about 40 ° C.). The terminal end of the supply channel for nozzle supply (31 a to 49 a) is connected to a nozzle cleaning chamber (described later) of the nozzle device 50. The electromagnetic valves 42 and 46 are provided in the local cleaning supply flow paths (31b to 44) and the nozzle cleaning supply flow paths (31a to 49a), respectively. Further, the switching valve / flow rate adjusting valve 70 is mechanically driven and the electromagnetic valve 42, 46 is electrically driven, and the operation signal from the operating unit 20 is received and the driving signal is output to the electromagnetic valves 42, 46. And a dry battery 80 for supplying power to the control device 85.

  The nozzle device 50 includes an operation cylinder 51, a piston 52 that is inserted and retracted into the operation cylinder 51, and is operated by the water pressure of the cleaning water. A cleaning nozzle 53 that moves to the cleaning position, a return spring 54 for returning the cleaning nozzle 53 to its original position, a local cleaning supply channel (31b to 44), and a nozzle cleaning supply channel (31a to 49a) And a switching valve / flow rate adjusting valve 70.

The operation cylinder 51 is made of a resin-made different-diameter pipe whose front and rear ends are opened and having different inner diameters. The front half constitutes a small-diameter front cylinder 51A, and the rear half constitutes a large-diameter rear cylinder 51B. . For this reason, a stepped portion 51 c that restricts the forward movement of the piston 52 is provided at the connecting portion between the inner circumferential front cylinder 51 </ b> A and the rear cylinder 51 </ b> B of the operation cylinder 51. Further, a small-diameter portion 51d is formed at an intermediate portion of the front cylinder 51A, and a rear end surface of the small-diameter portion 51d functions as a locking portion that restricts the forward movement of the cleaning nozzle 53, and a spring support is provided on the front end side. The part 51e is provided integrally. The spring receiving portion 51e receives the front end of the return spring 54 and slidably supports and guides the cleaning nozzle 53. The inner diameter of the spring receiving portion 51e is smaller than that of the small diameter portion 51d. It is formed in a larger ring shape.
A cleaning water supply port 55a (first inlet) is formed in the rear end side opening corresponding to the upstream end of the operation cylinder 51, and the local cleaning supply flow paths (31b to 44) are connected thereto.

  In addition, on the downstream side of the cleaning water supply port 55a, the cleaning water outlet 51h (first outlet) is provided on the left side of the rear cylinder 51B, and the bidet advancement inlet 51i (first) is provided on the left side of the front cylinder 51A from the small diameter portion 51d. 2 water inlets), a bidet washing water outlet 51j (second outlet), and a washing water inlet 51k (third inlet) on the left side of the end of the small diameter portion 51d of the front cylinder 51A. A diaphragm 61 is provided in the cleaning water inlet 51k so that the cleaning nozzle 53 contacts with the cleaning nozzle 53 only when water pressure is applied. That is, since the advancement of the nozzle 53 is completed before the pressure is applied to the diaphragm 61, the portion of the diaphragm 61 does not become a resistance when the nozzle is advanced, and it is effective when supplying cleaning water.

  Furthermore, a nozzle cleaning water supply port 51 l (fourth inlet) is formed on the right side surface of the front end of the operation cylinder 51. The inside where the nozzle cleaning water supply port 51l is formed on the front end side of the operation cylinder 51 forms a nozzle cleaning chamber 51m.

  The piston 52 is made of synthetic resin, and includes a pressure receiving plate 52A on a circular plate and a cylindrical portion 52B integrally projecting on the pressure receiving surface (back surface) side of the pressure receiving plate 52A. A contact recess 52c that contacts the pin 53q of the cleaning nozzle 53 is provided. The contact recess 52c is formed in a substantially conical shape. This ensures that the pin 53q is pressed by the spring 54 along the conical wall surface. The cleaning nozzle 53 can be moved while being positioned substantially at the center of the piston 52.

  The cleaning nozzle 53 is formed in a long and narrow cylindrical shape having an outer diameter slightly smaller than the inner diameter of the spring receiving portion 51e by a rigid resin, and a drip cleaning passage 53f2 and a bidet cleaning passage 53g2 are formed therein. The front opening of the buttocks cleaning passage 53f2 is opened on the upper surface on the front end side of the nozzle 53 to form a buttocks outlet 53h. The front opening of the bidet cleaning passage 53g2 opens on the upper surface on the front end side of the nozzle 53, thereby forming a bidet outlet 53j. Note that a butt washing water communication port 53k is formed on the left side surface of the nozzle 53 at a position where the piston 52 is moved forward by the maximum stroke and communicates with the washing water inlet 51k when the nozzle 53 is stopped at the butt washing position. The nozzle 53 has a bidet washing water communication port 53l formed at a position that coincides with and communicates with the washing water inlet 51k when the nozzle 53 moves forward by the maximum stroke and stops the nozzle 53 at the bidet washing position. Further, two flat portions 53m that are parallel to each other are formed on the outer peripheral surface of the nozzle 53, and a gap between the flat portion 53m and the spring receiving portion 51e forms a water draining gap.

  A flange 53n and a pin 53q forming a pressure receiving plate are integrally projected from the rear end surface of the rear end side outer peripheral surface of the nozzle 53, respectively. The flange 53n protrudes integrally from the center of the rear end surface of the nozzle 53, contacts the contact recess 52c of the piston 52, and separates the piston 52 and the nozzle 53. This is because the cleaning water flowing into the front cylinder 51A from the bidet advancement inlet 51i during bidet cleaning is supplied to the pressure receiving surface (back surface) side of the flange 53n.

  The return spring 54 that urges the nozzle 53 in the return direction is a compression coil spring, and is elastically mounted between the spring receiving portion 51e and the flange 53n.

6 is an external perspective view of the switching valve / flow rate adjusting valve 70 of the present invention, FIG. 7 is an exploded perspective view of the valve body 75, FIG. 8 is a cross-sectional view of the switching valve / flow rate adjusting valve 70 during butt cleaning, FIG. FIG. 6 is a cross-sectional view showing a relative positional relationship between grooves provided in the valve body 75 during butt cleaning.
The switching valve / flow rate adjusting valve 70 includes an outer cylinder body 71 and a valve body 75. The outer cylinder 71 is formed in a hollow, substantially cylindrical shape, and an insertion opening 72 for inserting the valve body 75 is provided at one end, and a bearing portion 73 that rotatably supports the valve body 75 is provided at the other end. Further, on the right peripheral surface of the outer cylinder 71, there are provided a washing water outlet 71h, a bidet advancement inlet 71i, a bidet washing water outlet 71j, and a washing water inlet 71k (third inlet) provided in the operation cylinder 71. A cleaning water inflow hole 71a, a bidet advancement outflow hole 71b, a bidet cleaning water inflow hole 71c, and a cleaning water outflow hole 71d are provided. The left peripheral surface is provided with a bypass outlet 71e, a bypass inlet 71f, and a surplus water outlet 71g. The bypass outlet 71e, the bidet outflow hole 71b, the bypass inlet 71f, and the bidet washing water inlet 71c are formed on the same plane. The bypass outlet 71e and the bypass inlet 71f are connected by a resin tube or the like (not shown).

  The valve body 75 is substantially cylindrical and has an operation shaft 75i at one end and a rotation shaft 75j at the other end. The partition 75h partitions the front chamber 75A and the rear chamber 75B into two chambers, and the side wall of the rear chamber 75B is cleaned. A washing water inflow groove 75a and a bidet advance outflow groove / bypass outflow groove 75b are formed at locations corresponding to the water inflow hole 71a and the bidet advance outflow hole 71b, respectively. Also, the side wall of the front chamber 75A has a bidet cleaning water inflow hole 71c, a surplus water discharge port 71g, and a bidet cleaning water inflow groove / bypass inflow groove 75c and a surplus water discharge groove at locations corresponding to the cleaning water outflow hole 71d, respectively. 75 g and a flow rate adjusting groove 75 d are formed. The flow rate adjusting groove 75d is formed in a substantially triangular shape so that the flow path resistance changes. Further, the surplus water discharge groove 75g and the flow rate adjusting groove 75d are provided by dividing the entire circumference into a butt and a bidet. (Refer to FIG. 9) Further, a Y packing mounting groove 75k is formed on the outer periphery on one end side, and when inserting the valve body 75 into the outer cylinder 71 from the opening 72, the Y packing (not shown) is inserted to be inserted. The opening 72 and the valve body 75 are sealed.

  FIG. 10 shows an external view of the operation unit 20. The operation unit 20 includes a cleaning start switch operating unit 21, a cleaning stop switch operating unit 22, and a flow path switching / flow rate adjusting knob 25. The cleaning start switch 21a and the cleaning stop switch 22a corresponding to each switch operating unit are The control unit 85 is electrically connected, and the flow path switching / flow rate adjusting knob 25 is mechanically connected to the operation shaft 75i by a wire or the like. The flow path switching / flow rate adjusting knob 25 is provided with a stopper (not shown) between the butt and the maximum flow rate position of the bidet to prevent sudden change from the butt maximum flow rate to the maximum bidet flow rate.

Next, the cleaning operation by the cleaning nozzle 53 having such a structure will be described.
FIG. 5 has already shown the non-cleaning state. In this state, the nozzle 53 is held at the initial position by the return spring 54 to press the piston 52 against the inner surface of the rear cylinder 51B. At this time, the solenoid valves 42 and 46 are closed.
The state of butt washing will be described with reference to FIGS.
When the user operates the cleaning start switch operation unit 21 in a state where the flow path switching / flow rate adjusting knob 25 provided on the sleeve portion of the cleaning apparatus body 10 after the stool is in the buttocks position (position in FIG. 10), the control device When the electromagnetic valve 42 is opened by the command 85, the cleaning water is supplied from the local cleaning supply flow path (31b to 44) into the rear cylinder 51B through the cleaning water supply port 55a. To press the piston 52. Therefore, the piston 52 and the nozzle 53 advance integrally against the return spring 54, and the front end portion of the nozzle 53 protrudes from the front end side opening 51 p of the operation cylinder 51. When the piston 52 advances the maximum stroke, the piston 52 comes into contact with the stepped portion 51c and stops. When the piston 52 moves forward and stops, the washing water flowing into the rear cylinder 51B flows from the washing water outlet 51h to the washing water inlet hole 71a (washing water inlet groove 75a) to the bypass outlet 71e (outlet groove groove for bidet advancement). Bypass outlet groove 75b)-Bypass inlet 71f (Bidet wash water inflow groove and bypass inflow groove 75c)-Flow rate adjusting groove 75d-Wash water outlet hole 71d-Wash water inlet 51k-Diaphragm 61 through the butt wash It is supplied to the water communication port 53k. This stop position is the buttocks washing position, and the washing water supplied from the buttocks washing water communication port 53k to the buttocks washing passage 53f2 is spouted upward from the buttocks outlet 53h to perform the ass washing. .

When the washing stop switch operation unit 22 is operated after the butt washing, the electromagnetic valve 42 is closed and the electromagnetic valve 42 is opened by a command from the control device 85. When the electromagnetic valve 42 is closed, the supply of the cleaning water to the cleaning nozzle 53 is stopped, so that the water pressure of the cleaning water decreases. Therefore, the nozzle 53 is gradually retracted by the elastic force of the return spring 54 and returns to the initial position shown in FIG. 5, and presses the piston 52 against the inner surface of the rear cylinder 51B. At this time, the washing water remaining in the operation cylinder 51 passes through the gap with the nozzle 53 and is discharged into the toilet from the front end side opening 51p of the operation cylinder 51.
On the other hand, when the electromagnetic valve 46 is opened, the cleaning water is supplied to the nozzle cleaning chamber 51m through the nozzle cleaning supply passages (31a to 49a), thereby cleaning the outer periphery of the nozzle 53. When the nozzle cleaning is performed for a desired time, the electromagnetic valve 46 is closed by a command from the control device 85.

Next, the state of bidet cleaning will be described with reference to FIG. 8B and FIG.
When the user operates the cleaning start switch operating unit 21 with the flow path switching / flow rate adjusting knob 25 set to the bidet position, the electromagnetic valve 42 is opened by a command from the control device 85. When the electromagnetic valve 42 is opened, the cleaning water supplied from the local cleaning supply passages (31b to 44) flows into the rear cylinder 51B through the inlet 55a, and the piston 52 and the nozzle 53 are returned by the water pressure. Advance against the spring 54. Therefore, the nozzle 53 protrudes from the front opening 51p of the operation cylinder 51. When the piston 52 advances the maximum stroke, the piston 52 comes into contact with the stepped portion 51c and stops. When the piston 52 stops, the nozzle 53 is not moved by the piston 52, but the cleaning water supplied into the rear cylinder 51B is used for the cleaning water outlet 51h, the cleaning water inflow hole 71a (the cleaning water inflow groove 75a), and the bidet advancement. As shown in FIG. 12, it passes through the outflow hole 71 b (outflow groove 75 for bidet advancement and bypass outflow groove 75 b) through the inflow inlet 51 i for bidet advancement and is guided into the front cylinder 51 A and presses the flange 53 n with its water pressure. Further, it extends and moves to the bidet cleaning position, and stops by contacting the locking portion 51e at this position. By the movement of the nozzle 53, the bidet washing water outlet 51j to the bidet washing water inflow hole 71c (the bidet washing water inflow groove and bypass inflow groove 75c) to the flow rate adjusting groove 75d to the washing water outflow hole 71d to the washing water inlet 51k to the diaphragm. The rear opening 53f of the bidet cleaning passage 53g2 matches through 61 and is jetted upward from the jet outlet 53j provided at the tip to perform the bidet cleaning for a desired time. When the cleaning stop switch operation unit 22 is operated, the electromagnetic valve 42 is closed and the electromagnetic valve 46 is opened by a command from the control device 85. When the electromagnetic valve 42 is closed, the supply of the cleaning water to the cleaning nozzle 53 is stopped, so that the water pressure of the cleaning water decreases. Therefore, the nozzle 53 is gradually retracted by the elastic force of the return spring 54 and returns to the initial position shown in FIG. 5, and presses the piston 52 against the inner surface of the rear cylinder 51B. At this time, the washing water remaining in the operation cylinder 51 passes through the gap with the nozzle 53 and is discharged into the toilet from the front end side opening 51p of the operation cylinder 51.

  On the other hand, when the electromagnetic valve 46 is opened, the cleaning water is supplied to the nozzle cleaning chamber 51m through the nozzle cleaning supply passages (31a to 49a), thereby cleaning the outer periphery of the nozzle 53. When the nozzle cleaning is performed for a desired time, the solenoid valve 4 is closed by a command from the control device 85.

Next, in order to understand the present invention more easily, FIG. 13 shows a second embodiment which is a principle embodiment rather than the first embodiment. FIG. 13 is a side sectional view of the nozzle device 50. In the embodiments described below, the same reference numerals are given to the same structures as those in the above-described embodiments.
In the figure, the nozzle device 50 includes an operation cylinder 51, a cleaning nozzle 53, and a return spring 54. The operation cylinder 51 is made of a resin-made different diameter pipe having different inner diameters with front and rear ends opened, and the front half constitutes a small-diameter front cylinder 51A and the rear half constitutes a large-diameter rear cylinder 51B.
For this reason, a step portion 51 c that restricts the forward movement of the piston 52 is provided at the connection portion between the inner peripheral front cylinder 51 </ b> A and the rear cylinder 51 </ b> B of the operation cylinder 51. A washing water inlet 55a is provided at the rear end, and a washing water outlet 51h is provided on the front side wall surface of the rear cylinder 51B. A spring receiver 51e is provided on the substantially middle side wall surface of the front cylinder 51A, and a cleaning water supply chamber (nozzle cleaning chamber 51m) is formed on the front end side of the spring receiver 51e, and the cleaning water supply chamber (nozzle cleaning chamber 51m) is formed in the front side. A cleaning water supply port 51k for supplying cleaning water is provided. A cap-shaped diaphragm 61 is disposed so as to protrude into the cleaning water supply chamber (nozzle cleaning chamber 51m). The diaphragm 61 is provided with a small hole 61a having a smaller diameter than the supply port 51k.
The cleaning nozzle 53 is provided with a cleaning water supply port 53k (53l) on the side peripheral surface and a jet outlet 53h (53j) at the tip of the nozzle, and the jet outlet 53h (53j) and the cleaning water supply port 53k (53l) are provided. A cleaning water flow path 53f (53g) to be communicated is provided.

  Next, the operation of the second embodiment will be described. When a cleaning water supply solenoid valve (not shown) is opened and cleaning water is supplied into the cylinder 51 from the cleaning water supply port 55a, the pressure receiving surface 53A formed at the rear end of the cleaning nozzle receives water pressure, and the nozzle 53 advances forward. To do. As soon as 53A of the nozzle 53 comes into contact with the stepped portion 51c, the washing water outlet 51h is opened, and the washing water is supplied to the washing water supply port 51k via the flow rate adjusting valve 70A. At this time, the diaphragm 61 receives water pressure and is pressed against the nozzle 53. Therefore, the water supplied to the cleaning water supply port 51k is supplied into the cleaning water supply port 53k (53l) provided in the nozzle 53 through the small hole 61a, and the cleaning water is supplied from the jet port 53h (53j) toward the local area. Supplied.

In this embodiment, bidet cleaning can be performed by combining the mechanisms described in FIG. A modification of the second embodiment will be described with reference to FIG. Since the nozzle advancement mechanism is the same as that shown in FIG. 13, it will not be described in this modification. (The figure is simplified.)
As an adjusting means for adjusting the forward tilt angle of the cylinder 51, a vertical cylinder 96, a supply electromagnetic valve (not shown) for supplying water into the vertical cylinder 96, and an angle change capable of moving up and down in the vertical cylinder 96 And a piston 97. The front lower portion of the cylinder 51 is supported by the device 1 so as to be rotatable by a hinge mechanism 51y. A connecting portion having a long hole 51x is formed in the lower part of the rear side of the cylinder, and the long hole 51x is slidably connected to a peristaltic shaft provided at the tip of the angle changing piston 97.

With this configuration, at the time of bidet cleaning, water is supplied to the vertical cylinder 96 by the supply electromagnetic valve, so that the piston 97 can be pushed upward to make the cylinder 51 stand up (position in FIG. 14B).
If neither bidet cleaning nor flow rate adjustment is required, the modification shown in FIG. 15 can be made. (Third Embodiment) In this embodiment, an inclined surface 51y is formed in the lower front part inside the cylinder 51, a discharge hole 53t is provided on the rear side surface of the nozzle 53, and an opening / closing valve 53v for opening and closing the discharge hole 53t is provided. is there. Accordingly, since the washing water is also discharged from the discharge hole 53t when the nozzle 53 does not advance, only a small amount is discharged from the outlet 53h (53j). In other words, it does not reach the bottom. Just before the nozzle 53 advances, the discharge hole 53t is closed by the valve 53v by the inclined surface 51y, and all the washing water is discharged from the ejection port 53h (53j), so that it reaches the buttocks. In this way, it is possible to prevent the phenomenon of so-called buttocks that the cleaning water is discharged from the ejection port 53h (53j) while the nozzle 53 advances and wets the back or the like.

Next, a fourth embodiment will be described with reference to FIGS.
FIG. 16 is an external perspective view of the local cleaning device 1 of the present invention. In the figure, the local cleaning apparatus 1 includes an apparatus main body 10 that houses equipment such as a nozzle device, a toilet seat 11 and a toilet lid 12, and a water supply conduit 13 and a hot water supply conduit 14 are connected to the apparatus main assembly 10. An operation unit 20 is provided on the side of the apparatus main body 10 so as to project forward.

17 is a perspective view with the upper case 10a of the apparatus main body 10 removed to show the storage state of the internal device, FIG. 18 is a perspective view with the operation unit and the controller removed from FIG. 17, and FIG. 17 is a perspective view seen from the bottom side with the case plate removed, FIG. 20 is a partial perspective view with the case plate removed from an angle different from FIG. 19, and FIG. 21 is a mixing view from FIG. It is a perspective view in the state where a unit and a valve unit were removed.
In the figure, a lower case 10b has an operation switch board 23 provided with a cleaning start switch 21a and a cleaning stop switch 22a, which is operated by a user to give an instruction to stop the supply of cleaning water. Selection and flow rate adjustment knob 25 for adjusting the flow rate of cleaning water, mixing valve unit 30 for mixing water and hot water supplied from water supply conduit 13 and hot water supply conduit 14 to obtain an appropriate temperature, and supplying cleaning water to the nozzle device A cleaning water supply valve unit 40 for performing the cleaning, a valve unit 45 for discarding hot water for stabilizing the temperature of the mixed hot water mixed by the mixing valve unit 30, a nozzle device 50 for supplying cleaning water to the user, A flow control valve 70 for adjusting the amount of cleaning water, a dry battery 80 as a power source for the local cleaning device 1, and a controller for controlling the local cleaning device 1. La 85, the seating switch 90 directly or indirectly fixed to ON in the user's weight to the seat. As the mechanism of the seating switch 90, the mechanism described in detail in Japanese Patent Laid-Open No. 11-155768 can be used, and the description thereof is omitted here.

  The mixing valve unit 30 includes a mixing valve main body 31 that forms an outer shell attached to the lower case 10b, and a valve function portion 32 that is housed in the main body 31 in the vertical direction. Since the valve function unit 32 is a cartridge type, the valve function unit 32 may be taken out of the main body 31 and maintained at the time of failure such as dust biting or malfunction. A water inlet 31a and a hot water inlet 31b are formed in the main body 31, and are connected to a water mounting elbow 33 and a hot water mounting elbow 34 with a cap nut, respectively. The other ends of the water mounting elbow 33 and the hot water mounting elbow 34 are connected to the water supply conduit 13 and the hot water supply conduit 14, respectively. The main body 31 is provided with a supply outlet 31c for discharging hot water mixed by the valve function section 32 and a discharge outlet 31d for hot water, and a washing water supply valve unit 40 and a hot water supply valve are provided in the respective outlets. One end of each unit 45 is inserted and connected.

  The cleaning water supply valve unit 40 operates when the supply pressure exceeds a predetermined pressure and performs pressure reduction to reduce the pressure of the electromagnetic valve 42 and to control the supply of cleaning water to the nozzle device 50. The electromagnetic valve 42 for supply and the vacuum breaker 43 for supply for preventing backflow by replacing the inside of the pipe with air when the supply of the cleaning water is stopped. In order to dispose the vacuum breaker 43 at a position higher than the cleaning water supply port 55a of the nozzle device 50, the communication pipe 40a that connects the secondary side of the electromagnetic valve 42 and the vacuum breaker 43 is formed long. By arranging the vacuum breaker 43 at a position higher than the cleaning water supply port 55a in this way, air can be quickly and surely introduced into the nozzle device 50, and the return operation of the cleaning nozzle 53 can be performed quickly. It becomes possible. The air intake 43a of the vacuum breaker 43 is connected to a discharge toy 10c formed in the lower case 10b by a tube 43b, and the water overflowing from the vacuum breaker 43 is discharged into the toilet.

  The wastewater valve unit 45 is a wastewater solenoid valve 46 for controlling hot water to be discharged directly to the toilet, a vacuum breaker 47 for hot water to prevent backflow by replacing the inside of the pipe with air when the hot water is stopped, Is formed by a branch pipe 48 that branches into a supply port 48a that supplies the gas to the nozzle device 50 and a discharge port 48b that directly discharges it into the toilet. The air intake 47a of the vacuum breaker 47 is connected to a discharge hole 10d formed in the lower case 10b by a tube 47b, and the water overflowing from the vacuum breaker 47 is discharged into the toilet. Further, the vacuum breaker 47 and the branch pipe 48 are connected by a tube 47c, and the supply port 48a and the nozzle device 50 are connected by a tube 49a, and the discharge port 48b and a discharge elbow 10e fixed to the lower case are connected by a tube 49b. .

22 is an external perspective view of the nozzle device 50 of the present invention, FIG. 23 is an exploded perspective view of the nozzle device 50, FIG. 24 is a perspective view of the operating cylinder 51, FIG. 25 is a sectional view of the operating cylinder 51, and FIG. FIG. 27 is a perspective view of the piston 52, FIG. 28 is an exploded perspective view of the cleaning nozzle 53, and FIG. 29 is a perspective view of the nozzle body 53a.
The nozzle device 50 includes an operation cylinder 51, a piston 52 that is inserted and retracted into the operation cylinder 51, and is operated by the water pressure of the cleaning water. The vacuum breaker 43 includes a cleaning nozzle 53 that moves to the cleaning position, a return spring 54 that returns the cleaning nozzle 53 to its original position, and a cylinder closing lid 55 that is attached to the rear end of the operating cylinder 51 and forms a cylinder. Are connected to the branch pipe 48 and the switching valve / flow rate adjusting valve 70.
In addition, in this switching valve / flow rate adjusting valve 70, a cylindrical valve body 75 for switching the flow path and adjusting the flow rate by rotating is provided, and the rotation axis thereof is parallel to the operation cylinder 51. The switching valve / flow rate adjusting valve 70 is formed in a compact manner. The detailed structure will be described later with reference to FIGS.

  The operating cylinder 51 is made of a resin-made different-diameter pipe whose front and rear ends are opened and having different inner diameters. The front half constitutes a small-diameter front cylinder 51A, and the rear half constitutes a large-diameter rear cylinder 51B. Yes. For this reason, a stepped portion 51 c that restricts the forward movement of the piston 52 is provided at the connecting portion between the inner circumferential front cylinder 51 </ b> A and the rear cylinder 51 </ b> B of the operation cylinder 51. Further, a small-diameter portion 51d is formed at an intermediate portion of the front cylinder 51A, and a rear end surface of the small-diameter portion 51d functions as a locking portion that restricts the forward movement of the cleaning nozzle 53, and a spring support is provided on the front end side. The part 51e is provided integrally. The spring receiving portion 51e receives the front end of the return spring 54 and slidably supports and guides the cleaning nozzle 53. The inner diameter of the spring receiving portion 51e is smaller than that of the small diameter portion 51d. Larger protrusions 51f and 51g are formed symmetrically. The protrusion 51f is provided to support the side surface of the cleaning nozzle 53, and the protrusion 51g is provided to support the upper and lower surfaces of the cleaning nozzle 53, and the force required for extending the cleaning nozzle 53 is reduced by reducing the contact area and reducing the sliding resistance. can do.

  A cleaning water supply port 55a is formed above the cylinder closing lid 55, and the cleaning water supply tube 44 is connected thereto.

  Also, the cleaning water outlet 51h is located on the left side of the rear cylinder 51B, the bidet advancement inlet 51i and the bidet cleaning water outlet 51j are located on the rear left side of the small diameter part 51d of the front cylinder 51A, and the nozzle is located forward of the small diameter part 51d of the front cylinder 51A. A cleaning water inlet 51k is provided on the left side of the cleaning chamber 51m. In addition, the diaphragm 61 of the seal packing 60 is protruded into the cleaning water inlet 51k so as to contact the cleaning nozzle 53 in a watertight state only when water pressure is applied. That is, since the advancement of the nozzle 53 is completed before the pressure is applied to the diaphragm 61, the diaphragm 61 portion does not become a resistance when the cleaning nozzle 53 is advanced, and is effective when supplying the cleaning water.

  Further, on the upper surface of the nozzle cleaning chamber 51m of the operation cylinder 51, an insertion portion 51l for inserting the nozzle cleaning conduit 56 is formed. Further, on the left side of the outer peripheral surface of the operation cylinder 51, a packing storage wall 51n is formed so as to surround the cleaning water outlet 51h, the bidet advancement inlet 51i, the bidet cleaning water outlet 51j, and the cleaning water inlet 51k. The side wall surrounded by the storage wall 51n is formed in a flat shape, the outer wall surface forming the cleaning water outlet 51h and the bidet advancement inlet 51i is the same plane 51p, and the bidet cleaning water outlet 51j and the cleaning water inlet 51k are formed. The outer wall surface to be made is the same plane 51q that is lower than the plane 51p. A communication path 51r is formed between the bidet washing water outlet 51j and the washing water inlet 51k on the plane 51q. Further, a packing deformation preventing projection 51s is provided in the communication path 51r. The reason why the inside of the packing storage wall 51n is flat is to simplify the shape of the seal packing 60 and to improve the sealing performance by making the surface pressure sandwiching the seal packing 60 substantially equal, and the flat surface 51p and the flat surface 51q. The reason why the step is provided is to make the cylinder thickness substantially equal due to the difference in diameter between the front cylinder 51A and the rear cylinder 51B. A lower extension 51t is formed in the lower portion of the operation cylinder 51, and connection holes 51u and 51v with the nozzle device mounting plate 57 are provided in the extension 51t.

  The piston 52 is made of synthetic resin, and includes a pressure receiving plate 52A on a circular plate, and a cylindrical portion 52B configured by six blades 52d integrally protruding on the pressure receiving surface (back surface) side of the pressure receiving plate 52A. A contact recess 52c that contacts the rear end of the cleaning nozzle 53 is provided in a substantially conical shape on the center front surface of the pressure receiving plate 52A. The cylindrical portion 52B is provided for the piston 52 to stably operate in the rear cylinder 51B.

The cleaning nozzle 53 is formed in an elongated cylindrical shape having an outer diameter slightly smaller than the inner diameter of the spring receiving portion 51e by a rigid resin, and is press-fitted into the cylindrical nozzle body 53a and the rear end opening of the nozzle body 53a to close the opening. The rear end closing body 53b, the connecting body 53d for connecting the nozzle body 53a and the nozzle head 53c, and the bidet outlet forming body 53e attached to the nozzle head 53c.
The washing nozzle 53 is formed therein with a wetting washing passage 53f and a bidet washing passage 53g. (The passage 53f1 of the nozzle body 53a, the passage 53f2 of the coupling body 53d, the passage for passage of the nozzle head 53c (not shown) 53f, the passage 53g1 of the nozzle body 53a, the passage 53g2 of the coupling body 53d, the passage for the bidet of the nozzle head 53c (not shown) 53g)) The front opening of the buttocks cleaning passage 53f opens at the upper surface on the front end side of the nozzle 53 to form a buttocks outlet 53h. A bidet outlet forming body 53e having a bidet outlet 53j is attached to the front opening of the bidet cleaning passage 53g to form a bidet outlet 53j. Note that a butt washing water communication port 53k is formed on the left side surface of the nozzle 53 at a position where the piston 52 is moved forward by the maximum stroke and communicates with the washing water inlet 51k when the nozzle 53 is stopped at the butt washing position. The nozzle 53 has a bidet washing water communication port 53l formed at a position that coincides with and communicates with the washing water inlet 51k when the nozzle 53 moves forward by the maximum stroke and stops the nozzle 53 at the bidet washing position. Further, two flat portions 53m that are parallel to each other are formed on the outer peripheral surface of the nozzle 53, and a gap between the flat portion 53m and the spring receiving portion 51e (a gap between the protrusions 51f and 51g) is drained. A gap is formed.

  The rear end closing body 53b is integrally provided with a flange 53n and a pin 53p that form a pressure receiving plate. The flange 53n protrudes integrally from the center of the rear end surface of the nozzle 53, contacts the contact recess 52c of the piston 52, and separates the piston 52 and the nozzle 53. This is because the pressure of the cleaning water flowing into the front cylinder 51A from the bidet advancement inlet 51i during bidet cleaning is supplied to the pressure receiving surface (back surface) side of the flange 53n.

  The return spring 54 that urges the nozzle 53 in the return direction is a compression coil spring, and is elastically mounted between the spring receiving portion 51e and the flange 53n.

  30A is a plan view, FIG. 30B is a side view, FIG. 30D is a central cross-sectional view of FIG. It is a perspective view. The seal packing 60 is formed in substantially the same shape as the shape enclosed by the packing storage wall 51n, and includes a diaphragm 61, a direction changing opening 62, a flow rate adjusting outlet 63, a bidet washing water outlet 64, a bidet advancement inlet 65, and a washing water outlet. 66 is formed. Diaphragm 61 has a substantially U-shaped cross section, and has a washing water inlet 61a at the tip, an annular seal portion 61b concentric with the inlet 61a, an elastic deformation portion 61c on the outer periphery, and a pressure on the back side. A chamber 61d is provided. A communication flow path 62a that connects the pressure chamber 61d and the direction changing opening 62 and a communication flow path 62b that connects the direction changing opening 62 and the flow rate adjusting outlet 63 are formed on the front and back sides. A lip 63 a is formed around the outlet 63, a lip 64 a is formed at the bidet washing water outlet 64, and a lip 65 a is formed at the bidet advancement inlet 65. Further, a bypass path 67 is provided between the bidet washing water outlet 64 and the bidet advancement inlet 65. Seal portions 60a, 60b, 60c, and 60e are provided around each opening, and are sandwiched between the nozzle device 50 or the side wall surface of the switching valve / flow rate adjusting valve 70 to maintain watertightness between the openings and the seal packing 60. .

32 is an external perspective view of the switching valve / flow rate adjusting valve 70 of the present invention, FIG. 33 is an exploded perspective view of the switching valve / flow rate adjusting valve 70, FIG. 34 is a schematic sectional view of the switching valve / flow rate adjusting valve 70, FIG. (A) A side view of the switching valve / flow rate adjusting valve 70, (b) a side view as seen from the groove side that aligns with each hole of the outer cylinder 71 when the tail of the valve body 75 is washed, and (c) the valve body 75. It is the side view seen from the groove | channel side aligned with each hole of the outer cylinder 71 at the time of bidet washing.
The switching valve / flow rate adjusting valve 70 includes an outer cylinder 71, a valve body 75, a gear box 76, and a driving force transmission gear 77 (power gear). The outer cylinder 71 is formed in a hollow, substantially cylindrical shape, and an insertion opening 72 for inserting the valve body 75 is provided at one end, and a bearing portion 73 that rotatably supports the valve body 75 is provided at the other end. Further, the right side surface of the outer cylinder 71 is formed in substantially the same shape as the shape enclosed by the packing storage wall 51n of the nozzle device 50, and the washing water outlet 51h, the bidet advancement inlet 51i, the bidet advancement provided in the operation cylinder 51 are provided. A cleaning water inflow hole 71a, a bidet advancement outflow hole 71b, a bidet cleaning water inflow hole 71c, and a cleaning water outflow hole 71d are provided to align the cleaning water outlet 51j and the cleaning water inlet 51k, respectively. Further, a bypass outlet 71e and a bypass inlet 71f are provided between the bidet advance outlet 71b and the bidet washing water inlet 71c, and an excess water outlet 71g and a cleaning water outlet 71d are disposed forward of the left front end. Is provided with a direction changing chamber 71h, and a packing pressing projection 71i is formed in the direction changing chamber 71h. The bypass outlet 71e and the bypass inlet 71f are connected by a bypass passage 67 formed in the seal packing 60. Five attachment portions 71j to the nozzle device 50 are provided on the right peripheral surface of the outer cylinder 71.

  The valve body 75 is formed of two members, a front valve portion 75A and a rear valve portion 75B, each having a substantially cylindrical shape and having a partition wall 75h at the end, and one half circumferential surface is used for the hip and the other half circumferential surface is used for the bidet. Further, an operation shaft 75i is formed at the end of the rear valve portion 75B, and the cleaning water inflow groove 75a is formed at a position aligned with the cleaning water inflow hole 71a and the bidet advancement outflow hole 71b on the side peripheral wall of the rear valve portion 75B, respectively. A bidet advancing outflow groove 75b is formed. In addition, a Y packing storage groove is formed on the rear outer periphery of the cleaning water inflow groove 75a, and when the valve body 75 is inserted into the outer cylinder 71 from the opening 72, the Y packing 75m is fitted into the insertion opening 72. Sealing with the valve body 75 is performed.

  On the side peripheral wall of the front valve portion 75A, a bypass outlet groove 75e and a bypass are provided at locations aligned with a bypass outlet 71e, a bypass inlet 71f, a bidet washing water inlet hole 71c, a washing water outlet hole 71d, and an excess water outlet 71g, respectively. An inflow groove 75f, a bidet wash water inflow groove 75c, a flow rate adjustment groove 75d, and a surplus water discharge groove 75g are formed. A partition wall 75h is provided between the bypass outflow groove 75e and the bypass inflow groove 75f to block communication inside the valve body 75. The flow rate adjusting groove 75d is formed in a substantially triangular shape so that the flow path resistance changes. Further, the surplus water discharge groove 75g and the flow rate adjusting groove 75d are provided by dividing the entire circumference into a butt and a bidet. Further, a rotation shaft 75j is provided at the start end of the front valve portion. Further, if a Y packing mounting groove (not shown) is formed between the bypass outflow groove 75e and the bypass inflow groove 75f on the outer periphery at one end, and the Y packing is fitted, the bypass outflow groove 75e and the bypass inflow groove are formed. 75 f is not communicated in the valve. The bidet advance outflow groove 75b and the bidet wash water inflow groove 75c are formed in a half circumference on the circumference of the valve body 75, and the bypass outflow groove 75e and the bypass inflow groove 75f are the bidet advance outflow groove 75b and the bidet wash water inflow groove. It is provided half a round away from 75c.

  The gear box 76 has an insertion hole 76a through which the operation shaft 75i is inserted, a discharge guide 76b and a discharge toy 76c for discharging water leaked from the Y packing 75m into the toilet bowl, and an insertion hole through which the operation force transmission wire 27 described later is inserted. 76d, a regulation guide 76e for regulating the bending of the operation force transmission wire 27, a stopper 76f for regulating the rotation of the operation force transmission gear 26 (transmission gear) fixed to one end of the operation force transmission wire 27, and the operation force transmission gear 26 A holding claw 76g for holding the microswitch 28 for detecting a specific position is provided.

36 is a perspective view for explaining power transmission from the flow path switching / flow rate adjusting knob 25 to the switching valve / flow rate adjusting valve 70, and FIG. 37 is a perspective view for explaining the attachment of the flow path switching / flow rate adjusting knob 25. FIG. 38 and FIG. 38 are external views of the operation unit 20.
The operation unit 20 is provided with a cleaning start switch operating unit 21, a cleaning stop switch operating unit 22, and a flow path switching / flow rate adjusting knob 25. The cleaning start switch operating unit 21 and the cleaning stop switch operating unit 22 are provided with an operation switch substrate 23. The operation switch board 23 is electrically connected to the controller 85, and the flow path switching / flow rate adjusting knob 25 is mechanically coupled to the operation force transmission gear 26 by an operation force transmission wire 27. When the operating force transmission gear 26 and the driving force transmission gear 77 are engaged with each other, the rotation of the flow path switching / flow rate adjusting knob 25 is transmitted to the operation shaft 75i, and the valve body 75 can be rotated. The flow path switching / flow rate adjusting knob 25 has a maximum weight of the back by a rotation restricting projection 26a and a stopper 76f provided at a position corresponding to the position between the maximum flow rate position of the operating force transmission gear 26 and the maximum flow rate position of the bidet. Since rotation is restricted between the flow rate position and the bidet maximum flow rate position, the maximum flow rate of the buttocks is not suddenly changed. Further, the projection 28b provided for detecting the water stop position between the minimum buttress flow position and the bidet minimum flow position of the operating force transmission gear 26 is configured to push down the flange 28a of the micro switch 28.

  The controller 85 includes a potting portion 85a that accommodates a control board and performs potting, and a wire fixing portion 85b that is continuously formed forward from the peripheral surface of the potting portion 85a. The wire fixing portion 85b is used to insert the operation force transmission wire 27. A notch 85c is provided, and a restricting member 29 having an insertion guide 29a at the center is fixed to the wire fixing portion 85b in order to restrict the bending of the operating force transmission wire 27. The distal end of the operating force transmission wire 27 has a D-shaped cross section, the distal end of the operating force transmission wire 27 protrudes from an insertion hole (not shown) provided in the upper case 10a, and the knob 25 is fitted into the distal end portion. In addition, a perforation cut 85d is made in the lowest part of the outer ring wall of the potting portion 85a, and after the potting process, the cut portion 85d is removed, so that water that enters and accumulates in the potting portion 85a can be discharged out of the controller 85. It is possible to reliably prevent malfunction due to potting partial erosion over a long period of time.

Next, the cleaning operation by the cleaning nozzle 53 having such a structure will be described.
FIG. 39 shows the state of the nozzle device 50 during non-cleaning. In this state, the cleaning nozzle 53 is held at the initial position by the return spring 54 to press the piston 52 against the inner surface of the rear cylinder 51B. At this time, the electromagnetic valve 42 is closed.
The user operates the washing start switch operation unit 21 in a state where the flow path switching / flow rate adjusting knob 25 provided on the sleeve portion of the apparatus main body 1 after the stool is at the buttocks position (maximum flow rate) (FIG. 34A). Then, when the electromagnetic valve 42 is opened by the command of the controller 85, and the electromagnetic valve 42 is opened, the cleaning water is supplied from the tube 44 into the rear cylinder 51B through the cleaning water supply port 55a, and the piston 52 is pressed by the water pressure. . Accordingly, the piston 52 and the nozzle 53 advance integrally against the return spring 54, and the front end portion of the nozzle 53 protrudes from the front end opening 51 w of the operation cylinder 51. When the piston 52 advances the maximum stroke, the peripheral portion of the pressure receiving plate 52A comes into contact with the stepped portion 51c and stops. (Position shown in FIG. 40) When the piston 52 moves forward and stops, the washing water flowing into the rear cylinder 51B passes through the washing water outlet 51h → the washing water outlet 66 → the washing water inlet hole 71a → the washing water inlet groove 75a. It flows into the rear valve part 75B, flows into the front valve part 75A via the bypass outlet groove 75e → bypass outlet 71e → bypass passage 67 → bypass inlet 71f → bypass inlet groove 75f, and the flow rate adjusting groove 75d → Washing water outflow hole 71d → Flow rate adjusting outlet 63 → Communication flow path 62b → Direction opening 62 → Communication flow path 62a leads to the pressure chamber 61d of the diaphragm 61, and the diaphragm 61 adheres to the side surface of the cleaning nozzle 53. Then, the washing water inlet 61a provided at the tip of the diaphragm 61 is washed from the butt washing water communication port 53k to the buttocks washing passage 53f to the buttocks outlet 53h. Water is supplied, the spouting bottom wash the washing water toward the posterior spout 53h upward perform desired time.

When the washing stop switch operating unit 22 is operated after the butt washing, the electromagnetic valve 42 is closed and the electromagnetic valve 46 is opened by a command from the controller 85. When the electromagnetic valve 42 is closed, the supply of the cleaning water to the cleaning nozzle 53 is stopped, so that the water pressure of the cleaning water decreases. Accordingly, air is supplied from the vacuum breaker 43 into the cylinder 51, and the residual water in the cylinder 51 is quickly discharged from the gap between the flat portion 53m and the spring receiving portion 51e (the gap between the protrusions 51f and 51g) and the tube 47b. Then, the cleaning nozzle 53 moves backward by the elastic force of the return spring 54 and returns to the initial position, and presses the piston 52 against the inner surface of the rear cylinder 51B.
On the other hand, when the electromagnetic valve 46 is opened, the cleaning water is supplied to the nozzle cleaning chamber 51m through the tube 49a and the nozzle cleaning conduit 56, thereby cleaning the outer periphery of the nozzle 53. When the nozzle cleaning is performed for a desired time, the electromagnetic valve 46 is closed by a command from the control device 50.

  When the user operates the cleaning start switch operation unit 21 with the flow path switching / flow rate adjusting knob 25 in the bidet position, the electromagnetic valve 42 is opened by a command from the controller 85. When the electromagnetic valve 42 is opened, cleaning water is supplied from the tube 44 into the rear cylinder 51B through the cleaning water supply port 55a, and the piston 52 and the nozzle 53 are advanced against the return spring 54 by the water pressure. For this reason, the nozzle 53 protrudes from the front end opening 51 w of the operation cylinder 51. When the piston 52 moves forward by the maximum stroke, the peripheral portion of the pressure receiving plate 52A comes into contact with the stepped portion 51c and stops. When the piston 52 is stopped, the nozzle 53 is not moved by the piston 52, but the washing water supplied into the rear cylinder 51B is washed water outlet 51h → wash water outlet 66 → wash water inlet 71a → wash water inlet groove 75a. Into the rear valve portion 75B, and is led into the front cylinder 51A through the bidet advance outlet groove 75b → the bidet advance outlet hole 71b → the bidet advance outlet hole 65 → the bidet advance outlet 51i. In order to press the flange 53n of the nozzle 53 with water pressure, it further expands and moves to the bidet cleaning position as shown in FIG. 41. At this position, the peripheral portion of the flange 53n comes into contact with the locking portion 51e and stops. By the movement of the nozzle 53, the bidet washing water outlet 51j → the bidet washing water outlet 64 → the bidet washing water inflow hole 71c → the bidet washing water inflow groove 75c flows into the front valve portion 75A, and the flow rate adjusting groove 75d → washing. Water outlet hole 71d → flow rate adjusting outlet 63 → communication flow path 62b → direction changing opening 62 → communication flow path 62a leads to the pressure chamber 61d of the diaphragm 61, and the diaphragm 61 comes into close contact with the side surface of the cleaning nozzle 53. The cleaning water is supplied from the cleaning water inlet 61a provided at the tip 61 to the bidet cleaning water communication port 53l → the bidet cleaning passage 53g → the bidet outlet 53j, and the cleaning water is jetted upward from the bidet outlet 53j to perform the ass washing. For the desired time.

  When the cleaning stop switch operation unit 22 is operated, the nozzle 53 is cleaned and returned to the initial state as in the case of the buttocks cleaning. Even if the washing switch operation unit 21 is operated in a state where the flow path switching / flow rate adjusting knob 25 is in the middle position of the hip / bidet, since the stop state is detected by the micro switch 28, washing is performed. Absent. In this state, when the cleaning stop switch operation unit 22 is continuously pressed for a predetermined time or longer, the electromagnetic valve 42 is opened and only the nozzle 53 is advanced, so that the nozzle 53 can be easily wiped and cleaned.

The block diagram which shows the waterway structure of this invention External perspective view of the nozzle device 50 of the present invention Exploded perspective view of the operating cylinder 51 An exploded perspective view of the cleaning nozzle 53 Sectional view when storing the cleaning nozzle 53 External perspective view of the switching valve and flow control valve 70 of the present invention An exploded perspective view of the valve body 75 FIG. 5A is a cross-sectional view of a switching valve / flow rate adjusting valve 70, where FIG. Sectional drawing which shows the relative positional relationship of each groove | channel provided in the valve body 75 at the time of butt washing External view of operation unit 20 Sectional drawing of the washing nozzle 53 showing the state during butt washing Sectional drawing of the cleaning nozzle 53 showing the state during bidet cleaning Sectional drawing of the nozzle apparatus 50 in 2nd Example of this invention. Sectional drawing of the nozzle apparatus 50 in the modification of the 2nd Example of this invention. Sectional drawing of the nozzle apparatus 50 in 3rd Example of this invention. It is an external appearance perspective view of the right sleeve type of the local washing | cleaning apparatus 1 of the 4th Example of this invention. The perspective view in the state which removed the upper case 10a of the apparatus main body 10 in order to show the accommodation state of the internal apparatus of 4th Example of this invention. FIG. 17 is a perspective view with the operation unit and the controller removed. The perspective view seen from the bottom side in the state which erased the case plate from FIG. The partial perspective view in the state which erased the case plate seen from an angle different from FIG. The perspective view in the state which removed the mixing unit and the valve unit from FIG. The external appearance perspective view of the nozzle apparatus 50 of the 4th Example of this invention. The disassembled perspective view of the nozzle apparatus 50 of the 4th Example of this invention. The perspective view of the operation cylinder 51 of the 4th Example of this invention. Sectional drawing of the cylinder 51 for operation of the 4th Example of this invention Side view of the operating cylinder 51 of the fourth embodiment of the present invention. The perspective view of piston 52 of the 4th example of the present invention. Exploded perspective view of the cleaning nozzle 53 of the fourth embodiment of the present invention. The perspective view of the nozzle main body 53a of the 4th Example of this invention. It is a figure of the seal packing 60 of 4th Example of this invention, (a) is a top view, (b) is a side view, (c) is a bottom view, (d) is a center cross-sectional view of (a). The perspective view of the seal packing 60 of the 4th Example of this invention. External perspective view of a switching valve / flow rate adjusting valve 70 according to a fourth embodiment of the present invention. The disassembled perspective view of the switching valve and flow control valve 70 of the fourth embodiment of the present invention. It is a schematic sectional drawing of the switching valve and flow control valve 70 of 4th Example of this invention, (a) is a schematic sectional drawing at the time of butt washing (maximum flow volume), (b) is a schematic sectional drawing at the time of bidet washing (A) side view of switching / flow regulating valve 70 of the fourth embodiment of the present invention, (b) side view as viewed from the groove side that aligns with each hole of the outer cylinder 71 when the butt of the valve body 75 is cleaned. (C) The side view seen from the groove | channel side which aligns with each hole of the outer cylinder 71 at the time of bidet washing of the valve body 75 The perspective view for demonstrating the power transmission from the flow-path switching and flow control knob 25 of the 4th Example of this invention to the switching valve and the flow control valve 70. FIG. The perspective view for demonstrating attachment of the flow-path switching and flow volume adjustment knob 25 of the 4th Example of this invention. External view of the operation unit 20 according to the fourth embodiment of the present invention. Sectional drawing which shows the state of the nozzle apparatus 50 at the time of the non-cleaning of 4th Example of this invention. Sectional drawing which shows the state of the nozzle apparatus 50 at the time of the butt washing of the 4th Example of this invention Sectional drawing which shows the state of the nozzle apparatus 50 at the time of the bidet cleaning of 4th Example of this invention

Explanation of symbols

50 ... Nozzle device 51 ... Cylinder 51h ... First outlet 51i ... First inlet 51m ... Washing water supply chamber 53 ... Nozzle 53h ... Washing water outlet 53j ... Washing water outlet 53k ... Washing water communication port 53l ... Washing water Contact port 60 ... Seal packing 61 ... Diaphragm part 70 ... Flow rate adjusting valve 71 ... Outer cylinder 71a ... Washing water inflow hole 71d ... Washing water outflow hole 75 ... Cylindrical valve body

Claims (7)

A nozzle having a cleaning water jet at the tip, and a nozzle device having a cylinder that supports the nozzle so as to be able to advance and retreat;
A flow rate adjusting valve having a wash water inflow hole communicated with a wash water supply source and a wash water outflow hole for supplying the wash water whose flow rate has been adjusted to the wash water outlet.
The local cleaning apparatus, wherein the cleaning water inflow hole is configured to be opened when the nozzle is advanced. 2. The local cleaning apparatus according to claim 1, wherein the cylinder has a first inflow port at an upstream end, a first outflow port downstream from the first inflow port, and water supplied from the first inflow port. The local cleaning device characterized in that the nozzle is advanced by connecting the first outlet and the cleaning water inflow hole. 3. The local cleaning apparatus according to claim 2, wherein the cylinder is provided with a cleaning water supply chamber upstream of the first outlet, further provided with a cleaning water communication port at the rear end of the nozzle, and when the nozzle advances. The local cleaning apparatus, wherein the cleaning water communication port and the cleaning water outflow hole are connected in the cleaning water supply chamber. 4. The local cleaning apparatus according to claim 3, wherein the flow rate adjusting valve is integrated with a cylinder. 5. The local cleaning apparatus according to claim 4, wherein the flow rate adjusting valve is constituted by an outer cylindrical body and a cylindrical valve body, and a rotation axis of the cylindrical valve body is provided in parallel with the cylinder. Cleaning device. The local cleaning apparatus according to claim 5, wherein a seal between the first outlet and the cleaning water inflow hole and a seal between the cleaning water supply chamber and the cleaning water outflow hole are configured by an integral seal packing. The local cleaning apparatus, wherein the flow rate adjusting valve is integrated with the cylinder via the seal packing. 7. The local cleaning apparatus according to claim 6, wherein the seal packing is provided with a diaphragm portion that protrudes into the cleaning water supply chamber, and the diaphragm portion causes the water pressure to flow through the cleaning water outflow hole and the cleaning water communication port. A local cleaning apparatus characterized by being configured to seal only when applied.

Images