JP3539009B2 - Local cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a local cleaning device for cleaning a local part of a human body, and more particularly to a technique for removing cold water in a local cleaning device and cleaning a tip of a cleaning nozzle after use.

[0002]

2. Description of the Related Art Conventionally, a local cleaning device A for performing local cleaning of a human body with hot water, that is, for cleaning a buttocks and a bidet.
It has been known. FIG. 8 shows a piping diagram of a conventional local cleaning device A. That is, the local cleaning device A has the waterway 1
The water channel 11 is a water supply channel 14 from the water supply inlet 12 to the hot water tank 13, and a hot water supply channel 5 from the hot water tank 13 to the washing nozzle 1. The water supply passage 14 is provided with a water supply solenoid valve 15, a reserve tank 16, and a water pump 4 in this order from the upstream side, and a hot water heater 17, a float switch 18, and a hot water thermistor 19 are provided in the hot water tank 13, The hot water supply path 5 is provided with a first switching valve 60 composed of an electromagnetic valve and a second switching valve 61 composed of an electromagnetic valve. The first switching valve 60 allows the first water path 62 and the second water path 63 to be freely switched. Yes, first
The water channel 62 is connected to the second switching valve 61 and the second water channel 63
A discharge portion 64 is provided at the tip of the nozzle, and the second switching valve 61 is capable of switching the supply of hot water to the buttocks washing nozzle 1b and the bidet washing nozzle 1a.

When performing buttocks washing or bidet washing, first, water is supplied to the second water passage 63 through the first switching valve 60 and discharged from the discharge portion 64 to supply hot water. After a certain period of time, the cold water remaining in the channel 5 is removed, the first switching valve 60 is switched to flow hot water to the first channel side 62, and the buttocks washing nozzle 1b or the bidet washing nozzle via the second switching valve 61. 1a to perform buttocks washing or bidet washing by selectively flowing hot water, and after washing, switch the first switching valve 60 to allow water to flow through the second water passage 63 and discharge water from the discharge portion 64. After cleaning was performed to wash away dirt adhering to the tip of No. 1.

[0004]

However, in the above-mentioned conventional example, the first switching valve 60 is used as the switching valve.
And a second switching valve 61 are required, and a separate second water passage 63 for removing cold water and after-cleaning is required, which increases the number of parts.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a local cleaning apparatus which requires only one switching valve and requires a small number of parts.

[0006]

In order to solve the above-mentioned problems, a local cleaning apparatus according to the present invention comprises two cleaning nozzles 1 for bidet and buttocks, and the two cleaning nozzles 1 are cylinders 2.
A slider 3 for hot-water ejection, which is spring-biased in the retreating direction by advancing by the hot-water pressure inside and releasing the hot-water pressure
The hot water supplied by the operation of the water pump 4 is supplied to the two cleaning nozzles 1 by a switching valve 6 provided in the hot water supply path 5.
In the local cleaning device in which the supply of hot water to the cleaning nozzle can be freely switched, a delay mechanism is provided in which the time required for the slider 3 to extend fully when one of the two cleaning nozzles 1 is subjected to hot water pressure is longer than the other. In using the cleaning nozzle 1 provided with the delay mechanism, hot water is first supplied to the cleaning nozzle 1 provided with the delay mechanism to remove cold water remaining in the hot water supply path 5 and the switching valve 6. At the same time, the water pump 4 and the switching valve 6 are controlled so that hot water is continuously supplied to the cleaning nozzle 1 provided with the delay mechanism, and the cleaning nozzle 1 provided with no delay mechanism is initially used. The cleaning nozzle 1 without the delay mechanism after supplying hot water to the cleaning nozzle 1 with the predetermined time delay mechanism and removing the cold water remaining in the hot water supply path 5 and the switching valve 6.
And a control means 7 for controlling the water pump 4 and the switching valve 6 so as to supply hot water to the water. By employing such a configuration, when using the cleaning nozzle 1 provided with the delay mechanism, it is preferable to supply warm water to the cleaning nozzle 1 provided with the delay mechanism from the beginning to provide the delay mechanism. When the washing nozzle 1 is not fully extended, the cold water is removed from the washing nozzle, and the washing nozzle 1 provided with the delay mechanism is continuously supplied with hot water to extend to a predetermined position. In addition, when the cleaning nozzle 1 without the delay mechanism is used, hot water can be supplied to the cleaning nozzle 1 with the delay mechanism first. When the cleaning nozzle 1 provided with the delay mechanism is not fully extended, the cold water is removed from the cleaning nozzle 1, and thereafter, the hot water is supplied to the cleaning nozzle 1 not provided with the delay mechanism, thereby delaying the cleaning. Cleaning mechanism without a mechanism Le 1 is intended for cleaning by spraying hot water in the state of stretched into place.

Further, the cleaning nozzle 1 provided with the delay mechanism
Is a washing nozzle 1a for cleaning bidet, and the washing nozzle 1 without the delay mechanism is preferably a washing nozzle 1b for washing the buttocks. Further, a small gap 8 is provided between the tip of the cylinder 2 of each washing nozzle 1 and the outer surface of the slider 3 for washing the tip of the slider 3 in a state in which a part of water leaks and recedes. The nozzle 1 is communicated with the communication path 9 to clean the tip of the slider 3 of the cleaning nozzle 1 provided with the delay mechanism. Is stopped and the water pump 4 and the switching valve 6 are again supplied with hot water to the cleaning nozzle 1 provided with the delay mechanism for a fixed time.
In the cleaning of the tip of the slider 3 of the cleaning nozzle 1 without the delay mechanism, the cleaning nozzle 1 with the delay mechanism is provided after the cleaning with the cleaning nozzle 1 without the delay mechanism is completed. It is also preferable to provide control means 7 for controlling the water pump 4 and the switching valve 6 so as to supply hot water for a certain time. With such a configuration, when the cleaning by the cleaning nozzle 1 provided with the delay mechanism is completed, the supply of the hot water is stopped for a certain time, the cleaning nozzle 1 retreats, and then a certain time delay mechanism is provided again. By supplying hot water to the cleaning nozzle 1, the tip of the cleaning nozzle 1 can be cleaned while the cleaning nozzle 1 provided with the delay mechanism cannot extend sufficiently. When the cleaning by the cleaning nozzle 1 not provided with the cleaning mechanism is completed, the hot water is supplied to the cleaning nozzle 1 provided with the delay mechanism for a certain period of time, whereby the cleaning nozzle 1 provided with the delay mechanism is provided.
The tip of the washing nozzle 1 can be washed while the ink cannot be sufficiently extended.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. The local cleaning device A has a toilet seat and a valve lid 10 rotatably attached thereto, and is used by being attached to a toilet seat (not shown). FIG. 1 shows a piping diagram of the local cleaning device A. In the figure, reference numeral 11 denotes a water channel formed in the local cleaning device A, and the water channel 11 is a water supply inlet 1.
From 2 to the hot water tank 13 is a water supply path 14, and from the hot water tank 13 to the washing nozzle 1 is a hot water supply path 5. The water supply passage 14 has a water supply solenoid valve 15 in order from the upstream side,
A reserve tank 16 and a water pump 4 are provided. A hot water heater 17 and a float switch 1
8, a hot water thermistor 19 is provided, and a switching valve 6 composed of an electromagnetic valve is provided in the hot water supply path 5, and two cleaning nozzles 1 are connected to the switching valve 6, and the switching valve 6 is By switching, the supply of warm water is selectively switched to either of the two cleaning nozzles 1.

Here, one of the two washing nozzles 1 is a bidet washing nozzle 1a for bidet washing, and the other is a buttocks washing nozzle 1b for buttocks washing. Both cleaning nozzles 1 are provided with a slider 3 for hot water jetting which is moved forward by hot water pressure in the cylinder 2 and spring-urged in the retreating direction by releasing the hot water pressure. FIG.
4 shows details of the bidet cleaning nozzle 1a, and FIG. 4 shows details of the buttocks cleaning nozzle 1b. The bidet cleaning nozzle 1a is provided with a slider 3a of a multi-stage mechanism in a cylinder 2a so as to be able to freely enter and exit.

In the embodiment shown in FIG. 3, the slider 3a of the multi-stage mechanism is of a two-stage telescopic type, and a movable inner cylinder 21 is provided so as to freely move in and out of the movable outer cylinder 20. An ejection portion 22 having a hot water ejection hole is provided at the tip of the body 21. A water supply port 23 is provided at the rear end of the cylinder 2a. A donut-shaped link 24 is provided at the rear end of the movable outer cylinder 20. A slight gap for water flow is provided between the outer periphery of the link 24 and the inner periphery of the cylinder 2a. is there. A contact portion 25 is provided inside the cylinder 2a.
Is provided so that when the movable outer cylinder 20 projects outward with respect to the cylinder 2a, the link body 24 hits the contact portion 25 and does not project any further. Although not shown, a spring force for retracting the movable outer cylinder 20 into the cylinder 2a is applied to the movable outer cylinder 20 by a spring material such as a coil spring. A donut-shaped link 27 is provided at the rear end of the movable inner cylinder 21. A slight gap for water flow is provided between the outer peripheral portion of the link body 27 and the inner peripheral portion of the movable outer cylinder 20. A contact portion 28 is provided inside the movable outer cylinder 20, and when the movable inner cylinder 21 projects outward with respect to the movable outer cylinder 20, the link body 27 hits the contact portion 28 and does not protrude further. It has become. Although not shown, the movable inner cylinder 2 is made of a spring material such as a coil spring.
1 is applied to the movable inner cylinder 20 so as to retreat. A small gap 8 is provided between the outer peripheral portion of the movable outer cylinder 20 and the tip of the cylinder 2a.

Here, the water supply port 23 of the bidet cleaning nozzle 1a
When hot water is supplied into the cylinder 2a from the cylinder, the movable outer cylinder 20 advances against the cylinder 2a against the spring material by the hot water pressure, and the movable outer cylinder 21 moves against the spring material. Advance to 20. On the other hand, the buttock cleaning nozzle 1b
The slider 3b is provided in the cylinder 2b so that it can freely enter and exit. An ejection portion 30 having a hot water ejection hole is provided at the tip of the slider 3b. A water supply port 31 is provided at the rear end of the cylinder 2b. In the drawing, reference numeral 50 denotes a guide rod whose rear end is fixed to the rear end of the cylinder 2b.
The movable piece 32 is movably fitted into the guide rod 50, and the movable piece 32 is a stopper 5 at the tip end of the guide rod 31.
If it hits 1, it cannot move forward any more. A contact portion 33 is provided in the cylinder 2b, and when the slider 3b projects forward, a flange portion 34 provided at the rear end of the slider 3b comes into contact with the slider 3b so that the slider 3b does not further project forward. I have. Although not shown, a spring force for retracting the slider 3b into the cylinder 2b is applied to the slider 3b by a spring material such as a coil spring. Further, a small gap 8 is provided between the inner peripheral portion of the distal end portion of the cylinder 2b and the outer peripheral portion of the slider 3b.
Is provided.

Here, the water supply port 31 of the buttocks washing nozzle 1b
When the water is supplied into the cylinder 2b from above, the slider 3b moves forward against the spring material by the hot water pressure. By the way, when comparing the bidet cleaning nozzle 1a with the multi-stage slider 3a and the buttocks cleaning nozzle 1b with the single-stage slider 3b, the bidet cleaning nozzle 1a with the multi-stage slider 3a has one stage. It takes a longer time for the slider 3 to fully extend when hot water pressure is applied than the buttock cleaning nozzle 1b of the formula. That is, slider 3
By setting a to be a multi-stage type, a delay mechanism that takes a long time until the slider 3 is fully extended is configured. Therefore, in this embodiment, the bidet cleaning nozzle 1
A delay mechanism is provided so that the time required for the slider 3 to extend completely when the hot water pressure acts on a becomes longer than that of the buttocks washing nozzle 1b.

As shown in FIG. 2, a communication portion 36 provided in the cylinder 2a of the bidet cleaning nozzle 1a and a buttock cleaning nozzle 1b are provided.
The communication passage 9 is formed by connecting the communication portion 37 provided in the cylinder 2b. FIG. 5 shows a control block diagram of the present invention. In the drawing, reference numeral 40 denotes a bidet cleaning switch,
Reference numeral 41 denotes a buttocks washing switch.
When the buttocks washing switch 41 is operated, the control means 7 controls the water supply electromagnetic valve 15, the water pump 4, the switching valve 6, and the like.

That is, in the present invention, when the buttocks washing switch 41 is operated to perform the buttocks washing, the water pump 4 is operated to supply the hot water in the hot water tank 13 with the hot water as shown in the time chart of FIG. The hot water supplied to the channel 5 is supplied to the bidet cleaning nozzle 1a through the switching valve 6.
Side for a certain time. Here, when the hot water is supplied to the bidet cleaning nozzle 1a side, the multi-stage slider 3a is slightly extended due to the hot water pressure, and the remaining water remaining in the hot water supply passage 5, the switching valve 6, etc. during the time is discharged by the hot water. It is set to the time required to extrude from 22. During the removal of the cold water, the amount of water discharged from the jetting portion 22 is small because the multi-stage slider 3a is advancing little by little against the spring material by the hot water pressure, and is therefore removed to the buttocks. No cold water is applied. After supplying hot water to the bidet washing nozzle 1a for a certain period of time as described above to remove cold water, the switching valve 6 is switched by a signal from the control means 7 to supply hot water to the buttocks washing nozzle 1b. When hot water is supplied to the buttocks washing nozzle 1b, hot water pressure is applied to the slider 3b and the moving piece 32, and the slider 3b is advanced with the moving piece 32 closing the rear end opening of the slider 3b against the spring material. Then, immediately before the maximum forward position, the moving piece 32 is moved to the stopper 32 at the distal end of the guide rod 31.
And only the slider 3b advances slightly to the maximum advance position, and the ejection portion 30 at the tip of the slider 3b stops.
It cleans the buttocks by squirting warm water from it.

When the buttock cleaning is performed for a predetermined time, the control means 7 switches the switching valve 6 to switch the buttock cleaning nozzle 1b.
Is stopped, and the hot water is supplied to the bidet cleaning nozzle 1a for a certain period of time. When the supply of hot water to the buttocks washing nozzle 1b is stopped in this way, the hot water pressure to the slider 3b is released, and the slider 3b retreats to the initial position by the spring force of the spring material. On the other hand, when hot water is supplied to the bidet cleaning nozzle 1a, the multi-stage slider 3
a discharges hot water from the jetting part 22 while advancing little by little by the hot water pressure, but a part of the hot water moves from a water passage gap between the outer peripheral portion of the link body 27 and the inner peripheral portion of the tip end of the cylinder 2a. It flows out into the small gap 8 between the outer peripheral portion of the outer cylindrical body 20 and the tip of the cylinder 2a, or water flows between the outer peripheral portion of the link body 27 and the inner peripheral portion of the movable outer cylindrical body 20. After passing through the gap, the inner surface of the distal end of the movable outer cylinder 20 and the movable inner cylinder 2
The hot water flows out through the gap between the outer peripheral portion of the moving inner cylinder 2 and the moving inner cylinder 2 from the outer surface of the moving outer cylinder 20 of the bidet cleaning nozzle 1a.
The jetting part 22 at the tip of the movable inner cylinder 21 flows along the outer surface of the inner cylinder 1 and is cleaned. A part of the warm water flowing from the gap for water passage between the outer peripheral portion of the link body 27 and the inner peripheral portion of the distal end portion of the cylinder 2 a is transferred to the cylinder 2 via the communication passage 9.
b, and flows out of the small gap 8 between the inner peripheral portion of the distal end portion of the cylinder 2b and the outer peripheral portion of the slider 3b to clean the ejection portion 30 provided at the distal end portion of the slider 3b. For this cleaning bidet cleaning nozzle 1
The time during which hot water is supplied to a is set at a time during which the multi-stage slider 3a is slightly extended due to the hot water pressure, the force of the hot water discharged from the jetting portion 22 of the bidet cleaning nozzle 1a is weak, and the hot water does not reach the buttocks. is there.

When the cleaning is performed for a predetermined time,
The operation of the water pump 4 is stopped by the control means 7. On the other hand, when the bidet cleaning switch 40 is operated to perform bidet cleaning, the water pump 4 operates to supply the hot water in the hot water tank 13 to the hot water supply path 5 as shown in the time chart of FIG. The supplied hot water is supplied to the bidet cleaning nozzle 1a via the switching valve 6. Here, the bidet cleaning nozzle 1a is set so that it takes time for the slider 3a to extend completely by providing a delay mechanism with the slider 3a being a multi-stage type.
Hot water supply path 5 and switching valve 6
The hot water pushes out the remaining water remaining in the outlet from the jetting portion 22 to remove the cold water. Then, since the control means 7 continues to supply hot water to the bidet cleaning nozzle 1a even after the removal of the cold water, the slider 3a continues to extend and moves forward to the maximum forward position. Then, bidet cleaning is performed with warm water jetted from the jetting portion 22 at the maximum forward position. During the removal of the cold water, the amount of water discharged from the ejection part 22 is small because the multi-stage slider 3a is advancing little by little against the spring material by the hot water pressure. No cold water will be applied.

When the bidet cleaning is performed for a predetermined time, the operation of the water pump 4 is stopped by the control means 7 for a predetermined time. By stopping the operation of the water pump 4 in this manner, the movable outer cylinder 20 and the movable inner cylinder 21 are retracted by the spring material. In this way, the operation of the water pump 4 is stopped for a certain
0. After the movable inner cylinder 21 is retracted, the water pump 4 is again operated for a predetermined time by the control means 7 to supply hot water to the bidet cleaning nozzle 1a via the switching valve 6. When hot water is supplied to the bidet cleaning nozzle 1a, the multi-stage slider 3a discharges hot water from the ejection portion 22 while advancing little by little with the hot water pressure, but a portion of the hot water is supplied to the outer peripheral portion of the link body 27 and the cylinder 2a. From the water passage gap between the outer peripheral portion of the movable outer cylindrical body 20 and the distal end portion of the cylinder 2a or from the outer peripheral portion of the link body 27. It passes through a gap for water passage between the inner peripheral portion of the outer cylinder 20 and the inner surface of the distal end of the movable outer cylinder 20 and the movable inner cylinder 21.
Hot water flows out through the gap between the outer peripheral portion of the moving inner cylinder 21 and the moving inner cylinder 21 from the outer surface of the moving outer cylinder 20 of the bidet cleaning nozzle 1a.
Flows along the outer surface of the movable inner cylindrical body 21 to clean the ejection part 22 at the distal end. A part of the warm water flowing from the gap for water passage between the outer peripheral portion of the link body 27 and the inner peripheral portion of the distal end portion of the cylinder 2a passes through the communication passage 9 to the cylinder 2b.
And the inner circumference of the tip of the cylinder 2b and the slider 3
out of the small gap 8 between the outer periphery of the slider 3 and the slider 3
The cleaning unit 30 cleans the jetting unit 30 provided at the end of FIG. For this cleaning, bidet cleaning nozzle 1a
The time for supplying hot water is set to a time during which the multi-stage slider 3a slightly extends due to the hot water pressure, the hot water discharged from the jetting portion 22 of the bidet cleaning nozzle 1a is weak, and the hot water does not reach the buttocks. .

When the above cleaning is performed for a predetermined time,
The operation of the water pump 4 is stopped by the control means. In addition,
The water supply solenoid valve 15 is opened when the water pump 4 is operated,
When the operation of the water pump 4 is stopped, the water pump 4 is controlled to be closed. By the way, in the above embodiment, the time until the slider 3 is fully extended when the bidet cleaning nozzle 1a is subjected to the hot water pressure is set to be slower than the buttocks cleaning nozzle 1b (that is, the slider is moved to the bidet cleaning nozzle 1a side). 3 is provided with a delay mechanism that delays the time until the extension of the buttock cleaning nozzle 1a.
b is set so that the time required for the slider 3 to fully extend when hot water pressure is applied is delayed (that is, a delay mechanism is provided on the bidet cleaning nozzle 1a to delay the time required for the slider 3 to extend). Is also good.

[0019]

According to the invention of claim 1 of the present invention, as described above, when the hot water pressure acts on one of the two cleaning nozzles, the time until the slider is fully extended is longer than the other. When using the cleaning nozzle provided with the delay mechanism, hot water is first supplied to the cleaning nozzle provided with the delay mechanism, and the cold water remaining in the hot water supply path, the switching valve, etc. The water pump and the switching valve are controlled so that warm water is continuously supplied to the cleaning nozzle provided with the delay mechanism while the cleaning nozzle is not provided with the delay mechanism. A water pump supplies hot water to the cleaning nozzle provided with the fixed time delay mechanism and removes cold water remaining in the hot water supply path and the switching valve, and then supplies hot water to the cleaning nozzle without the delay mechanism. Passing Since the control means for controlling the switching valve is provided, it may be provided two switching valve as in the prior art,
The cooling valve can be removed with a simple or simple switching valve without separately providing a special water channel for removing the cold water, so that the number of parts is reduced, the cost is reduced, and the size can be reduced.

According to the second aspect of the present invention, in addition to the effects of the first aspect, the cleaning nozzle provided with the delay mechanism is a bidet cleaning nozzle for bidet cleaning. Since the washing nozzle without the mechanism is the buttocks washing nozzle for buttocks washing, the effect of the invention described in claim 1 can be achieved with a simple configuration in which a delay mechanism is provided in the bidet washing nozzle.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, water is provided between the tip of the cylinder of each washing nozzle and the outer surface of the slider. A small gap is provided for cleaning the tip of the slider in a state where a part of the slider leaks and is retracted, and both cleaning nozzles are communicated through a communication path, and the tip of the slider of the cleaning nozzle provided with the delay mechanism is cleaned. In this case, after completion of the cleaning by the cleaning nozzle provided with the delay mechanism, the supply of the hot water is stopped for a certain time, and then the water pump and the switching valve are supplied again to supply the hot water to the cleaning nozzle provided with the delay mechanism for the certain time. In controlling and cleaning the tip of the slider of the cleaning nozzle without the delay mechanism, the cleaning nozzle with the delay mechanism is terminated for a predetermined time after the cleaning with the cleaning nozzle without the delay mechanism is completed. Since the water pump and the control means for controlling the switching valve are provided so as to supply water, the switching valve can be reduced without providing two switching valves as in the related art or separately providing a special water path for after cleaning. After cleaning can be performed with two simple configurations, the number of parts can be reduced, cost can be reduced, and compactness can be achieved.

[Brief description of the drawings]

FIG. 1 is a piping diagram of the present invention.

FIG. 2 is a partially broken plan view showing the two cleaning nozzles of the same.

3A and 3B show a bidet cleaning nozzle of the above, wherein FIG. 3A is a cross-sectional view of a state where the slider is fully extended, and FIG. 3B is a cross-sectional view of a state where the slider is retracted.

4A and 4B show the same buttocks washing nozzle, wherein FIG. 4A is a cross-sectional view and FIG. 4B is a side view.

FIG. 5 is a control block diagram of the above.

FIG. 6 is a time chart of the above-mentioned buttocks washing.

FIG. 7 is a time chart of the bidet cleaning of the above.

FIG. 8 is a piping diagram of a conventional example.

[Explanation of symbols]

1 Cleaning nozzle 1a Bidet cleaning nozzle 1b Butt washing nozzle 2 cylinder 3 Slider 4 water pump 5 Hot water supply path 6 Switching valve 7 control means 8 small gap 9 connecting passage

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E03D 9/00-9/16

Claims (3)

(57) [Claims] 1. A hot water jet for supplying bidet and buttocks with two washing nozzles, wherein the two washing nozzles are advanced by hot water pressure in a cylinder and spring-urged in a retreating direction by releasing the hot water pressure. In the local cleaning device, the hot water supplied by the operation of the water pump is provided, and the supply of the hot water to the two cleaning nozzles can be switched by the switching valve provided in the hot water supply path. When a warm water pressure is applied to one side, a delay mechanism is provided in which the time required for the slider to extend completely is longer than the other.When using the cleaning nozzle provided with the delay mechanism, the cleaning nozzle provided with the delay mechanism is used. First, supply hot water to remove cold water remaining in the hot water supply path and the switching valve, and continue to supply hot water to the washing nozzle with the delay mechanism. In controlling the switching valve and using the cleaning nozzle without the delay mechanism, supplying hot water to the cleaning nozzle with the initial fixed time delay mechanism to supply the hot water to the hot water supply path and the switching valve. A local cleaning device comprising a control means for controlling a water pump and a switching valve so as to supply hot water to a cleaning nozzle without a delay mechanism after removing remaining cold water. 2. The washing nozzle provided with a delay mechanism is a bidet washing nozzle for bidet washing, and the washing nozzle without a delay mechanism is a buttocks washing nozzle for buttocks washing. Item 7. A local cleaning device according to Item 1. 3. A small gap is provided between the tip of the cylinder of each washing nozzle and the outer surface of the slider for washing the tip of the slider in a state where a part of the water leaks and is retracted. In the cleaning of the tip of the slider of the cleaning nozzle provided with the delay mechanism, the supply of the hot water is stopped for a certain time after the completion of the cleaning by the cleaning nozzle provided with the delay mechanism, and then again for a certain time. The water pump and the switching valve are controlled so as to supply hot water to the cleaning nozzle provided with the delay mechanism, and the cleaning mechanism not provided with the delay mechanism is not provided with the delay mechanism when cleaning the tip of the slider of the cleaning nozzle provided with the delay mechanism. And a control means for controlling a water pump and a switching valve so as to supply hot water to the cleaning nozzle provided with the delay mechanism after the cleaning by the cleaning nozzle for a predetermined time. The local cleaning device according to claim 1 or 2.