JP2001152518A - Nozzle cleaning device for warm water bidet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nozzle cleaning device for a warm water bidet capable of cleaning the stains on the outer faces of jet sections at the tips of washing nozzles and capable of securing proper washing actions and a sanitary state. SOLUTION: This warm water bidet is provided with a washing water feeding means feeding the washing water adjusted to a prescribed temperature, a nozzle unit having washing nozzles 3, 4 retractable between a protrusion position protruded to a prescribed position and a retreated standby position and ejecting the washing water at the protrusion position, and a cleaning washing water passage 30 discharging the washing water to the outer faces of the jet sections 3a, 4a at the tips of the washing nozzles 3, 4 at the standby position to clean them. The cleaning washing water passage 30 is provided with an outflow hole 28 serving as a stream contraction section and an intake port 35 near its downstream portion, and bubbles are mixed in the washing water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle cleaning device for a hot water cleaning device in which cleaning of a cleaning nozzle in the hot water cleaning device is performed by using cleaning water.

[0002]

2. Description of the Related Art A conventional general hot water cleaning apparatus is shown in FIG.
As shown in the figure, a nozzle unit 41 having a bottom cleaning nozzle 42 and a bidet cleaning nozzle 43, and a three-way opening having a bottom cleaning port and a bidet cleaning port for selectively supplying cleaning water to both cleaning nozzles. A flow control switch valve 44 and a built-in heater 45 for storing a predetermined amount of hot water
a hot water tank 4 configured to be controllable at a predetermined water temperature at a
5, a constant flow valve 47 and an electromagnetic on-off valve 48 from the water terminal 46.
And a water supply means 50 for supplying water to the hot water tank 45 via the water supply means. By opening the electromagnetic opening / closing valve 48 of the water supply means 50 and supplying water into the hot water tank 45 at the time of washing, the hot water in the hot water tank 45 is supplied. Is extruded toward the nozzle unit 41. The water supply means 50 has a flow rate at the constant flow rate valve 47 and the cleaning nozzles 42 and 4.
There is provided a relief valve 49 for discharging surplus water having a difference from the flow rate spouted from 3 to the toilet.

[0003]

However, in the hot water cleaning apparatus having the above-mentioned conventional configuration, the cleaning nozzle 4 is not used during cleaning.
When the washing water ejection part at the tip of 2, 43 protrudes to the center of the toilet bowl, dirt and the like adheres to the outer surface thereof, and dirt is easily generated on the outer surface thereof, and the dirt is not configured to clean the dirt. Dirt is neglected, and it becomes a win, and it becomes impossible to properly perform cleaning by blowing out cleaning water,
There were problems such as unsanitation.

[0004] In view of the above-mentioned conventional problems, the present invention can clean dirt on the outer surface of a cleaning water jetting portion at the tip of a cleaning nozzle, and can ensure a proper cleaning action and sanitary condition. It is intended to provide a device.

[0005]

SUMMARY OF THE INVENTION A nozzle cleaning device of a hot water cleaning device according to the present invention is provided with cleaning water supply means for supplying cleaning water whose temperature has been adjusted to a predetermined temperature, and with a protruding position protruding to a predetermined position. A nozzle unit having a cleaning nozzle capable of moving in and out of the standby position and ejecting the cleaning water at the protruding position, wherein the cleaning water is discharged to the outer surface of the ejection portion at the tip of the cleaning nozzle at the standby position. A cleaning water passage for cleaning, and a water flow restrictor provided in the cleaning water passage for cleaning, and an intake port provided in the vicinity of the downstream of the cleaning water passage. Outside air is sucked from the intake port into the negative pressure part generated downstream of the nozzle when it passes through, and is mixed with the cleaning water, and is discharged as cleaning water containing bubbles on the outer surface of the ejection part. Apparent washing water As a result, the outer surface of the jetting portion is effectively cleaned by bursting impact of air bubbles and the like, so that the outer surface of the jetting portion of the cleaning nozzle can be reliably cleaned, and a proper cleaning action and sanitary condition can be secured. .

The nozzle unit is configured to project the cleaning nozzle to a predetermined position by the pressure of the cleaning water supplied to the nozzle cylinder pipe which is a guide for projecting the cleaning nozzle. A flow control switching valve having a cleaning port for supplying cleaning water in a cylinder pipe and a nozzle cleaning port for supplying cleaning water to a cleaning water passage for cleaning is provided, and a connection portion of the cleaning water passage for cleaning with a nozzle cleaning port. If an outflow hole is provided as a water flow restrictor and an intake port is provided in the vicinity of the outlet, the cleaning nozzle can be cleaned by switching the flow control switching valve that controls the operation of the cleaning nozzle to the nozzle cleaning port. The control switching valve can also be used, and the water flow restricting portion and the intake port can be easily formed, so that a low cost and compact configuration can be achieved.

When the nozzle unit has a posterior cleaning nozzle and a bidet cleaning nozzle, the upper part of the space between the pair of nozzle cylinder pipes, which are the protruding guides of the two cleaning nozzles, is closed with a lid plate to clean the cleaning water. When a passage is formed and an intake port is formed in the lid plate, the cleaning water passage for cleaning can be simply and compactly arranged, and the intake port can be easily provided.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the hot water cleaning apparatus of the present invention will be described below with reference to FIGS.

In FIG. 1, a hot water cleaning apparatus 1 of the present embodiment includes a nozzle unit 2 having a posterior washing nozzle 3 and a bidet cleaning nozzle 4, an inlet port 5a, a posterior washing port 5b, a bidet cleaning port 5c, and a nozzle cleaning port. 5d, a four-way flow rate control switching valve 5 for selectively supplying washing water flowing from the inlet port 5a to the three outlet ports 5b to 5d, and storing a predetermined amount of hot water. A hot water tank 6 configured to be controllable at a predetermined water temperature by a built-in heater 6a, and a water supply and relief valve for supplying water to the hot water tank 6 from a water supply terminal 7 via a constant flow valve 8 and an electromagnetic switching valve 9. At 10, a water supply means 11 configured to discharge surplus water of a difference between a flow rate at the constant flow rate valve 8 and a flow rate flowing out from each of the outlet ports 5 b to 5 d of the flow rate control switching valve 5 to the toilet. It has been made. Reference numeral 5e denotes a motor that rotationally drives the valve body 20 (see FIG. 2) of the flow rate adjustment switching valve 5 to switch the outlet ports 5b to 5d and adjust the flow rate by the rotation position.

In FIG. 2 showing the detailed structure of the nozzle unit 2 and the flow rate control switching valve 5 provided at the base end thereof, a main body case 12 of the nozzle unit 2 includes a posterior washing nozzle 3 and a bidet washing nozzle 4 respectively. The nozzle cylinder pipes 13 and 14 which are supported so as to be able to move back and forth between a standby position shown in FIG. 2 and a projecting position projecting to a predetermined position shown in FIG. Connecting plate 12a and connecting plate 12b in a plane position through which both axes pass
And the closing plate 1 above the connecting plate 12b at the ends of the two.
2c and the lower part of the connecting plate 12b are integrally formed in a state of being connected by connecting ribs (not shown) arranged at appropriate intervals in the axial direction.

At the base end of the main body case 12, a valve box member 15 of the flow control switching valve 5 is disposed, and mounting portions 15a on both sides thereof are provided.
Mounting bosses 1 projecting from both sides of the base end of the main body case 12
It is fastened and fixed to 2d with screws (not shown). The nozzle cylinder pipes 13 and 1 are provided on both sides of the valve box member 15.
The fitting cylinders 16 and 17 which are fitted and connected in a sealed state via a sealing material 18 are protruded from the base end of the fitting cylinder 4.
The buttocks washing port 5b and the bidet washing port 5c are opened toward the insides 6 and 17.

At the center of the valve box member 15, a cylindrical valve box 19 is formed perpendicular to the plane through which the axes of the nozzle cylinder pipes 13 and 14 pass. The valve body 20 is rotatably fitted and disposed at the top, and a motor 5e for driving the valve body 20 is provided at the upper part. The valve body 20 has a bottomed cylindrical shape whose lower end is opened to communicate with the inlet port 5a.
A valve port 21 is opened on a side surface at a height position corresponding to c. The valve port 21 is provided with the cleaning port 5 for each of the valve ports 21.
Communication holes 15b and 15c are formed from both outer surfaces to allow them to communicate with each other when facing the b and 5c sides, and the outer surface openings are sealed with plug members 22a and 22b.

Each of the cleaning nozzles 3 and 4 is provided with a corresponding one of the cleaning ports 5.
b, 5c, the hollow nozzle shaft 23 projects from the standby position of FIG. 2 toward the projecting position of FIG. 3 by the pressure of the washing water supplied into the nozzle cylinder pipes 13 and 14.
Piston portions 23a and 24a are provided at the base end of the nozzle cylinder pipes 13 and 14 so as to be slidably fitted to the inner surfaces of the nozzle cylinder pipes 13 and 14, and the distal ends of the nozzle shafts 23 and 24 are formed at the distal end walls of the nozzle cylinder pipes 13 and 14. Through the guide holes 13a and 14a formed in the guide holes. In addition, each nozzle shaft 2
Spout portions 3a, 4a each having a spout for spouting washing water toward a local portion are attached to the tips of 3, 24, respectively.

A spring 25 for urging the washing nozzles 3, 4 toward the standby position is interposed between the tip end walls of the nozzle cylinder pipes 13, 14 and the piston portions 23a, 24a. Further, small-diameter portions 13c, 14 are provided at the tip portions of the nozzle cylinder pipes 13, 14 via step portions 13b, 14b.
c is formed, and when each of the cleaning nozzles 3 and 4 protrudes to the protruding position, the piston portion 23 at the position of the step portions 13b and 14b is formed.
The cleaning nozzles 3 and 4 are held by two points of support of the nozzle shafts 23 and 24 at the positions of the guide holes 13a and 14a, and the storage space for the spring 25 is secured. ing. Also, the piston part 23
A seal ring 26 for abutting and sealing the step portions 13b, 14b is mounted on the distal end surfaces of the a, 24a.

At the upper and lower ends of the nozzle shafts 23, 24, shallow concave grooves 23b, 24b are formed over substantially the entire length, and guide holes 1 in the tip walls of the nozzle cylinder pipes 13, 14 are formed.
3a, 14a are opened in the same shape and the nozzle shafts 23, 24
The rotation position around the axis is regulated. Further, notches 23c, 24c are formed at positions corresponding to the concave grooves 23b, 24b on the outer periphery of the piston portions 23a, 24a, and the nozzle cylinder pipes 13, 1
4 flows out of the notches 23c, 24c onto the concave grooves 23b, 24b, and the wash water flows into the concave grooves 23b, 24b.
Through the notches 27 (see FIG. 7) formed in the upper portions of the guide holes 13a and 14a, and flows out to the outer surfaces of the ejection parts 3a and 4a for cleaning.

In the posterior washing nozzle 3, the piston 23 a is disposed at the distal end of the nozzle shaft 23 by a suitable distance from the proximal end, and in the bidet cleaning nozzle 4, the piston 24 a is disposed at the proximal end of the nozzle shaft 24. At the projecting positions, the ejection portions 3 of the buttocks washing nozzle 3 are provided as shown in FIG.
The ejection portion 4a of the bidet cleaning nozzle 4 is configured to project slightly forward from the position a.

The nozzle unit 2 having the basic configuration as described above
In this embodiment, as shown in FIGS. 4 to 9, in the valve opening 21 of the valve body 20, a narrow extension 21 a is formed upward from the center of the valve opening 21, and the valve opening 21 has a hip. When the valve body 20 is positioned so as to be located at an intermediate standby position where the cleaning port 5b and the bidet cleaning port 5c are closed, the cylindrical valve box 1 faces the upper end of the narrow width extension 21a.
9 is provided with a nozzle cleaning port 5d. An outlet hole 28 is formed in the connecting plate 12a at the base end of the main body case 12 so as to communicate with the nozzle cleaning port 5d, and the base plate is in contact with the opening end surface of the nozzle cleaning port 5d in a sealed state. A projection 29 is provided.

On the upper part of the connecting plate 12b between the nozzle cylinder pipes 13 and 14, washing water flowing out of the outlet holes 28 is formed at both ends of the closing plates 12c at the tips of the nozzle cylinder pipes 13 and 14. Discharge holes 31a, 31b
A cleaning water passage 30 for guiding the cleaning water is formed.
The cross-sectional area of the outflow hole 28 is set to be very small as compared with the cross-sectional area of the cleaning water passage 30 for cleaning, and is configured to function as a water flow restrictor.

The cleaning water passage 30 is provided at the upper part of the outer peripheral surfaces of the nozzle cylinder pipes 13 and 14 at appropriate intervals and opposed to each other at the rising walls 32a and 3a.
2b is erected, and the upper end thereof is closed by a lid plate 33. As shown in FIGS. 4 and 5, the lid plate 33 has an intake port 35 formed at an upper portion in the vicinity of the downstream side of the outflow hole 28 as a water flow restrictor, and the water flowing out of the outflow hole 28 is formed. The outside air is sucked in by the injector effect due to the above, air is mixed into the cleaning water, and the residual water in the cleaning water passage 30 for cleaning can be removed smoothly by opening to the atmosphere when the water is not flowing, so that destruction due to freezing or the like can be prevented. It is configured. The rising walls 32a, 32b are spaced apart from each other at the small diameter portions 13c, 14c of the nozzle cylinder pipes 13, 14, as shown in FIGS.
The discharge holes 31a and 31b are configured to be located immediately above the nozzle shafts 23 and 24.

4 and 8 are provided at the tip of the lid plate 33.
As shown in FIG. 9, a cover portion 34 that covers at least the upper surfaces of the outer surfaces of the ejection portions 3 a and 4 a of the cleaning nozzles 3 and 4 at the standby position with a proper gap is integrally provided.
The ejection parts 3a, 4
A hanging piece 34a is hung so as to cover the upper part of both side surfaces of "a". In FIGS. 9 and 10, reference numeral 40 denotes a main body cover of the hot water washing toilet seat to which the hot water washing device 1 is attached.

In the above configuration, during standby, the valve body 20 of the flow rate control switching valve 5 has the valve port 21 whose posterior washing port 5
b and the bidet cleaning port 5c are located at an intermediate position that is not in communication with the nozzle cleaning port 5c. In this state, the narrow extension 21a of the valve port 21 communicates with the nozzle cleaning port 5d. Therefore, when the cleaning water is heated to a predetermined temperature in the hot water tank 6 during standby and expands, the cleaning water corresponding to the expansion flows out from the nozzle cleaning port 5d, passes through the cleaning water passage 30 for cleaning, and is discharged through the discharge port. The jets 31a and 31b are discharged from the cover portion 34 and guided by the cover portion 34, and surely flow through the gap between the upper surface of the jetting portions 3a and 4a of the buttery cleaning nozzle 3 and the bidet cleaning nozzle 4 and the cover portion 34, and the jetting portions 3a and 4a It is effectively used for cleaning.

In operation, when the switch for washing the posterior or bidet is depressed, the electromagnetic on-off valve 9 is opened prior to switching the position of the valve body 20 of the flow rate control switching valve 5, and the hot water tank 6 is opened.
Washing water flows out of the nozzle cleaning port 5 as described above.
d through the cleaning water passage 30 and discharge holes 31a, 3
1b, it flows on the upper surfaces of the ejection parts 3a, 4a of the posterior washing nozzle 3 and the bidet washing nozzle 4, and is cleaned prior to use.

Next, the valve body 20 is rotated by the motor 5e of the flow rate control switching valve 5 with a slight delay from the opening of the electromagnetic on-off valve 9, and the valve port 21 is switched between the poster washing port 5b and the bidet washing port 5c. The opening is adjusted while communicating with the selected side. For example, when the posterior washing is selected, the washing water flows into the nozzle cylinder pipe 13 from the washing port 5b, and the water pressure acts on the piston portion 23a of the posterior washing nozzle 3 and resists the urging force of the spring 25. The buttocks washing nozzle 3 is pushed toward the projecting position. In the meantime, a part of the washing water flows into the nozzle shaft 23 and flows out a small amount from the ejection part 3a at the tip,
A portion of the washing water flows out of the notch 23c formed in the piston portion 23a onto the nozzle shaft 23, flows along the concave groove 23b, flows out to the outer surface of the ejection portion 3a at the tip, and cleans the inside and outside of the ejection portion 3a. The cleaning water stays in the water channel between the hot water tank 6 and the piston portion 23a during this time, and the cleaning water whose temperature has dropped is discharged to the toilet bowl, so that the cleaning water is subsequently jetted from the jetting portion 3a. Sometimes, a suitable temperature of hot water is spouted toward the local area.

When the posterior cleaning nozzle 3 is protruded to its protruding position as shown in FIG.
Seal ring 26 provided on the nozzle cylinder pipe 13
The nozzle water is pressed against the step 13b at the tip of the nozzle to seal the inside of the nozzle cylinder pipe 13 and stop the volume expansion.
a, and is urged vigorously toward the local area from the ejection hole, whereby the washing is surely performed.

When the cleaning for a predetermined time is completed, the flow control switching valve 5 is switched to the original standby state, and the electromagnetic on-off valve 9 is closed with a slightly delayed timing. As a result, the buttocks washing nozzle 3 at the projecting position returns to the standby position by the urging force of the spring 25, and the washing water passes through the cleaning washing water passage 30 and the discharge holes 31a,
Cleaning water is supplied toward the outer surface of the ejection part 3a of the buttocks cleaning nozzle 3 that has returned to the standby position from 31b.

When the cleaning nozzle 3 projects and performs cleaning as shown by a virtual line in FIG.
When the cleaning nozzle 3 returns to the standby position indicated by the solid line even when the fouling f adheres to the surface, the fouling f is scraped off by the tip of the cover portion 34, and then the cleaning water is cleaned as described above. Discharge hole 3 through water passage 30
By being discharged from 1a, 31b, the cleaning water flows strongly in the narrow space between the upper surface of the ejection part 3a and the cover part 34, whereby the residue of the dirt f is also effectively washed away.

Further, as described above, the cleaning water passage 3 for cleaning is used.
At 0, the small-diameter outflow hole 28 as a water flow restricting portion and the intake port 35
Is provided so that air bubbles are mixed in the cleaning water flowing through the cleaning water passage 30, so that the cleaning water containing air bubbles is discharged to the outer surface of the jetting portion 3a, and the apparent amount of cleaning water is reduced by the air bubbles. As the amount increases, the outer surface of the ejection part 3a is effectively cleaned by the burst impact of the air bubbles and the like. Therefore, the outer surface of the ejection portion 3a of the cleaning nozzle 3 can be reliably cleaned, and a proper cleaning operation and a proper sanitary condition can be ensured.

Further, the suction port 35 provided in the cleaning water passage 30 opens to the atmosphere when water is not flowing, so that the remaining water in the cleaning water passage 30 can be drained smoothly.

It is needless to say that the bidet cleaning nozzle 4 operates in the same manner even when the bidet cleaning is selected and has the same function and effect.

Further, according to the present embodiment, the nozzle unit 2 is moved to the predetermined position by the pressure of the cleaning water supplied to the nozzle cylinder pipes 13 and 14 which are projection guides of the cleaning nozzles 3 and 4. It is configured to protrude, and at the base end of the main body case 12 of the nozzle unit 2, the cleaning water is supplied to the cleaning ports 5 b and 5 c for supplying the cleaning water into the nozzle cylinder pipes 13 and 14 and the cleaning water passage 30 for cleaning. A flow control switching valve 5 having a nozzle cleaning port 5d is provided, and an outflow hole 28 as a water flow restrictor is provided at a connection portion of the cleaning water passage 30 with the nozzle cleaning port 5d. Is provided, by switching the flow control switching valve 5 for controlling the operation of the cleaning nozzles 3 and 4 to the nozzle cleaning port 5d,
Can also clean the outer surfaces of the jetting portions 3a and 4a, can also serve as the flow rate control switching valve 5, and can also use the water flow restricting portion and the intake port 3.
5 can also be formed easily, so that it can be configured at low cost and compactly.

In the nozzle unit 2 having the posterior washing nozzle 3 and the bidet washing nozzle 4, a rising wall 32a is provided on the upper outer surface of a pair of nozzle cylinder pipes 13 and 14, which are projection guides of the washing nozzles 3 and 4. , 32b
The upper portion of the space between the two is closed by the lid plate 33 to form the cleaning water passage 30, and the suction port 35 is formed in the lid plate 33, so that the cleaning water passage 30 is easily and compactly formed. In addition, the air inlet 35 can be easily provided.

[0032]

According to the nozzle cleaning device of the hot water cleaning device of the present invention, as is clear from the above description, cleaning for discharging cleaning water to the outer surface of the jetting portion at the tip of the cleaning nozzle at the standby position for cleaning. Since the cleaning water passage is provided, and a water flow restrictor is provided in the cleaning water passage for cleaning, and an intake port is provided near the downstream thereof, the cleaning water contains bubbles when passing through the water flow restrictor of the cleaning water passage for cleaning. Since the cleaning water is discharged to the outer surface of the ejection part, the apparent amount of washing water increases due to the incorporation of air bubbles, and the outer surface of the ejection part is effectively cleaned by bursting of air bubbles. Can be reliably cleaned, and a proper cleaning action and sanitary condition can be ensured. Further, by providing the intake port, the cleaning water passage for cleaning is opened to the atmosphere when water is not flowing, the remaining water can be smoothly drained, and breakage due to freezing can be prevented.

Further, a cleaning port for supplying cleaning water into the nozzle cylinder pipe and a nozzle cleaning port for supplying cleaning water to the cleaning water passage are provided at the base end of the nozzle cylinder pipe, which is a projection guide of the cleaning nozzle. When a flow rate control switching valve is provided, an outflow hole as a water flow restrictor is provided at a connection portion of the cleaning water passage with the nozzle cleaning port, and an intake port is provided in the vicinity thereof, a flow rate for controlling the operation of the cleaning nozzle is provided. By switching the control switching valve to the nozzle cleaning port, cleaning of the cleaning nozzle can be performed, and the flow control switching valve can also be used. Further, since the water flow restricting portion and the intake port can be easily formed, a low cost and compact configuration is provided. be able to.

When the nozzle unit has a posterior washing nozzle and a bidet washing nozzle, the upper part of the space between the pair of nozzle cylinder pipes, which are the protruding guides of the two washing nozzles, is closed with a lid plate to clean the cleaning water. When a passage is formed and an intake port is formed in the lid plate, the cleaning water passage for cleaning can be simply and compactly arranged, and the intake port can be easily provided.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of a hot water cleaning device of the present invention.

FIG. 2 is a cross-sectional plan view of the nozzle unit of the embodiment in a standby state.

FIG. 3 is a partial cross-sectional plan view showing a protruding state of a cleaning nozzle in the nozzle unit of the embodiment.

FIG. 4 is a partial cross-sectional plan view at a higher position than FIG. 2 showing a nozzle cleaning port and a cleaning water passage for cleaning in the nozzle unit of the embodiment.

FIG. 5 is a sectional view taken along the line AA of FIG. 4;

FIG. 6 is a sectional view taken along the line BB of FIG. 4;

FIG. 7 is a view taken in the direction of the arrows CC in FIG. 4;

FIG. 8 is a view as seen in the direction of arrows DD in FIG. 4;

FIG. 9 is a vertical sectional side view of a tip end portion of the nozzle unit of the embodiment in a standby state.

FIG. 10 is a vertical sectional side view showing a cleaning action at a tip end portion of the nozzle unit of the embodiment.

FIG. 11 is an overall configuration diagram of a conventional hot water cleaning device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot water washing apparatus 2 Nozzle unit 3 Butt washing nozzle 3a Spouting part 4 Bidet washing nozzle 4a Spouting part 5 Flow rate control switching valve 5b Butt washing port 5c Bidet washing port 5d Nozzle cleaning port 6 Hot water tank 11 Water supply means 13 Nozzle cylinder pipe (projection) Guide) 14 Nozzle cylinder pipe (projection guide) 28 Outflow hole (water flow restrictor) 30 Cleaning water passage for cleaning 33 Cover plate 35 Inlet

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tomio Arikawa 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. Terms (reference) 2D038 JA01 JA02 JA05 JB03 JB05 JF06 JH12

Claims (3)

[Claims] 1. A cleaning water supply means for supplying cleaning water whose temperature has been adjusted to a predetermined temperature, and a cleaning water that can move out and back between a projecting position projecting up to a predetermined position and a retreating standby position and at the projecting position. And a nozzle unit having a cleaning nozzle for ejecting cleaning water, a cleaning water passage for cleaning is provided by discharging cleaning water to an outer surface of a jetting portion at a tip of the cleaning nozzle at a standby position to clean the cleaning water. A nozzle cleaning device for a hot water cleaning device, wherein a water flow restricting portion is provided in a water passage and an intake port is provided near the downstream thereof. 2. The nozzle unit is configured to protrude a cleaning nozzle to a predetermined position by the pressure of cleaning water supplied to a nozzle cylinder pipe which is a guide for protruding the cleaning nozzle. A flow control switching valve having a cleaning port for supplying cleaning water in a cylinder pipe and a nozzle cleaning port for supplying cleaning water to a cleaning water passage for cleaning is provided, and a connection portion of the cleaning water passage for cleaning with a nozzle cleaning port. 2. The nozzle cleaning device for a hot water cleaning device according to claim 1, wherein an outflow hole is provided as a water flow restrictor, and an intake port is provided in the vicinity thereof. 3. The cleaning unit according to claim 1, wherein the nozzle unit includes a posterior washing nozzle and a bidet washing nozzle. 3. The nozzle cleaning device for a hot water cleaning device according to claim 2, wherein an intake port is formed in the cover plate.