JPH04156966A - Washing nozzle of bath tub washing device - Google Patents

Abstract

PURPOSE:To allow the complete removal of the stains on the inside surfaces of a bath tub by forming >=1 pieces of injection holes communicating with the inflow passage of a case base body on an injection body in the state of shifting the central axis of washing liquid injection from the revolving axial center of the injection body. CONSTITUTION:The case base body 16 mounted in the section facing the inside of the bath tub 1 is internally provided with the inflow passage 21 of the washing liquid. The injection body 23 is watertightly and freely rotatably provided on this case base body 16. This injection body 23 is rotated by a motor 31. One or more pieces of the injection holes 28a to 28c communicating with the inflow path 21 of the case base body 16 are formed on this injection body 23 in the state of shifting the central axis of the washing liquid injection from the rotating axial center of the injection body 23. Consequently, the stains on the inside wall surface of the bath tub are completely removed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning nozzle for a bathtub cleaning device that sprays cleaning liquid onto the inner wall surface of the bathtub to remove dirt from the inner wall surface of the bathtub.

[Conventional technology]

As a device for automatically cleaning bathtubs, it was developed in 1983-71.
No. 869 is known. This device is equipped with one cleaning nozzle that sprays cleaning liquid containing detergent onto the bathtub lid in a fixed direction, and one water injection nozzle that sprays water such as tap water in a fixed direction. When cleaning, a pump supplies cleaning liquid from the detergent tank to the cleaning nozzle, sprays it into the bathtub to remove dirt, and then supplies water from a water source such as tap water to the water injection nozzle to clean the inside of the bathtub. The cleaning liquid is sprayed onto the bathtub to wash away the dirt components and the cleaning liquid removed by the cleaning liquid, and the cleaning liquid is discharged from the drain hole.

[Problems to be Solved by the Invention] However, conventional bathtub cleaning devices use a single cleaning nozzle and spray cleaning liquid in a fixed direction, making it difficult for the cleaning liquid to reach every corner of the inner wall of the bathtub. There was a problem in that it was easy to stop uneven cleaning.

In order to solve this problem, the present inventors proposed an automatic bathtub cleaning device as shown in FIG.

This device has two cleaning nozzles 2a and 2b equipped with valve mechanisms attached to the opposing walls of a bathtub 1, and a return pipe 3 connected to the bottom of the bathtub 1 passes through a pump 4, a heat exchanger 5, and an outgoing pipe 6. A cleaning liquid circulation pipe is formed leading to the cleaning nozzles 2a and 2b, and a detergent tank 7 is connected to this circulation pipe via a detergent on-off valve 8.A water supply on-off valve is also provided on the inlet side of the heat exchanger 5. A water supply pipe 11 leading to a water supply source such as tap water is connected through a pipe 10. When cleaning a bathtub with this proposed device, for example, when the bathtub 1 is empty, the detergent on-off valve 8 is opened, a predetermined amount of detergent is poured into the circulation pipe from the detergent tank 7, and then the water supply on-off valve is opened. 10 is opened, water is supplied from the water supply pipe 11 to the circulation pipe, and this water is sent into the bathtub l along with detergent, and a cleaning solution (a combination of detergent and water) is placed on the bottom of the bathtub 1 to enable normal operation of the pump 4. (mixture). Next, the pump 4 is started to pass the cleaning liquid from the bottom of the bathtub 1 through the return pipe 3, the pump 4, and the heat exchanger 5 in order, and as it passes through the heat exchanger 5, the cleaning liquid is heated and made into hot water. Nozzle 2
a, 2b, for example, from the cleaning nozzle 2a side, spray toward the inner wall of the bathtub, and when a predetermined period of time has elapsed, the spray is similarly sprayed from the cleaning nozzle 2b toward the inner wall of the bathtub. The dirt is removed by the chemical cleaning power of the cleaning liquid and the jet collision force.Next, the water supply on-off valve IO is opened, the water supplied from the water supply pipe 11 is guided to the cleaning nozzle on one side, and is sprayed onto the inner wall surface of the bathtub for a predetermined period of time. Then, the washing nozzle on the other side similarly sprays the washing liquid onto the inner wall surface of the bathtub for a predetermined period of time to wash away and discharge the washing liquid adhering to the inner wall surface of the bathtub, thereby completing the washing of the bathtub. In addition, in the figure, 58 is a drain valve, 5
Reference numeral 9 indicates a water flow sensor, 60 a temperature sensor, and 61 an opening/closing control valve.

In this proposed device, two cleaning nozzles 2a and 2b are attached to the opposing wall surfaces of the bathtub.
The cleaning liquid sprayed from b reaches every corner of the inner wall of the bathtub, allowing the bathtub to be cleaned evenly and cleanly.

Generally, as shown in FIG. 1O and FIG. 11, a bathtub 1 installed in a bathroom is placed adjacent to an outer wall 12, and a hole 13 for piping is opened on the outer wall 12 side. A reheating device 14 is installed. This device 14 and the bathtub l are connected by a reheating circulation pipe passing through the hole 13.

The wall surface of the bathtub 1 other than facing the outer wall 12, that is,
In Fig. 11(a), wall surfaces 1a, lb, and ld, and in Fig. 11(b)
The wall surfaces 1a and ld are usually covered with tiles and are fixed integrally with the tiles on the washing area floor.

For this reason, for example, in the case of the installation form of a bathtub as shown in FIG. The cleaning nozzle 2a in the example can be maintained from outside the bathroom by using the hole 13 in the outer wall 12, but the cleaning nozzle 2a can be maintained from outside the bathroom by using the hole 13 in the outer wall 12. A problem arises in that the nozzle 2b cannot be maintained unless the tile is demolished. In addition, since the opposing wall surfaces 1a and lb on the short sides are also solidified with tiles, it is similarly undesirable to provide cleaning nozzles on these surfaces 1a and lb from the viewpoint of maintenance.

Moreover, in the case of the installation form of the bathtub l as shown in FIG. 11(b), the wall surface 1b of the bathtub 1 faces the outer wall 12.

The IC side can set up torch 13, so this 1b
Alternatively, installing a cleaning nozzle on the IC side does not pose a problem when performing maintenance, but since tiles are pasted on the bathtub wall surfaces 1a and ld opposite to this, it is still necessary to install a cleaning nozzle on that surface for maintenance. If the cleaning nozzle is installed on the opposite wall of the bathtub in order to spread the cleaning liquid to every corner of the inner wall of the bathtub, one side of the opposite cleaning nozzle will always be on the tile side, which will inevitably cause problems when performing maintenance. We are faced with the problem that this occurs. However, even if a conventional general cleaning nozzle is installed only on one side wall of the bathtub, the cleaning liquid will not spread to the entire area of the inner wall of the bathtub (especially when the cleaning nozzle is installed, the cleaning liquid will not spread to the surface). , the problem arises that effective cleaning cannot be performed.

The present invention has been made to solve the above problems, and its purpose is to clean the inner wall surface of the bathtub with one cleaning nozzle attached to the part facing the bathtub where maintenance is easy, for example, on the outer wall side of the bathtub. To provide a cleaning nozzle for a bathtub cleaning device capable of spraying cleaning liquid over the entire area of the bathtub to cleanly remove dirt from the inner wall surface of the bathtub.

[Means to solve the problem]

In order to achieve the above object, the present invention is configured as follows. That is, the cleaning nozzle of the first invention includes a case base that is attached to a part facing the inside of the bathtub and has an inflow passage for cleaning liquid inside, and a case base that is watertightly and rotatably installed on the case base. the spray body, and a rotational drive source for rotating the spray body, the spray body having one or more injection holes communicating with the inflow passage of the case base body for spraying cleaning liquid toward the rotational axis of the spray body. The cleaning nozzle of the second invention is configured such that the central axis of the cleaning nozzle is shifted from the central axis of the cleaning nozzle. a case base, a jet body watertightly and rotatably provided on the case base, and a rotational drive source for rotating the jet body, the jet body having an inflow passage of the case base. A first injection hole and a second injection hole that communicate with each other are formed facing different injection directions, and a rotation shaft that is linked to the rotational drive source is inserted into the case base watertightly and rotatably. A first arm and a second arm are respectively fitted into this rotating shaft so as to be able to freely rotate relative to the rotating shaft, and the first arm has the first injection hole connected to the right side of the first arm. A first valve that opens by rotational movement, and a second valve that opens the second injection hole by rotational movement of the second arm are linked to the second arm, and the injection body has a second valve that opens the second injection hole by rotational movement of the second arm. a first locking portion that locks onto the first arm and rotates the first arm and the jet body integrally when the first arm rotates clockwise by a predetermined amount; A second arm that locks onto the second arm and rotates the second arm and the ejection body integrally when the second arm rotates to the left by a predetermined amount.
A locking portion is provided on the rotating shaft, and the rotating shaft is further provided with a locking portion that locks on the first arm as the rotating shaft rotates clockwise, and rotates the first arm clockwise, and rotates the first arm counterclockwise. The structure is characterized in that a power transmission member is connected to the second arm and rotates the second arm counterclockwise.

[Effect]

In the first invention, when the cleaning liquid is supplied to the inflow passage of the case base and the rotational drive source is operated to rotate the spray body,
The cleaning liquid guided from the inflow path to the injection hole is sprayed in different directions as the spray body rotates, and the cleaning liquid is sprayed over the entire area of the inner wall surface of the bathtub.

In the second invention, when the cleaning liquid is supplied to the inflow passage of the case base and the rotational drive source is operated to rotate the rotational shaft, for example, in the right direction, the power transmission member connected to the rotational shaft also rotates with the rotational shaft. Rotates in unison. With this interlocking rotation, the power transmission member is engaged with the first arm, and the first arm is moved in the clockwise rotation direction. The first valve is opened by the movement of the first arm in the clockwise direction, and the cleaning liquid that has entered the first valve from the inflow path is injected from the first injection hole toward the inner wall surface of the bathtub. When the rotating shaft further rotates to the right, the first arm engages with the first locking portion of the ejector, and the ejector rotates to the right together with the first arm. As a result, the first injection hole changes the injection direction while rotating its injection position around the circumference.

After the cleaning liquid is injected from the first injection hole for a predetermined period of time, when the rotating shaft of the rotary drive source is rotated in the opposite direction (to the left), the power transmission member also rotates to the left in conjunction with the rotating shaft. . This leftward rotation of the power transmission member releases the restraining force on the first arm from rotating in the rightward direction, and the first injection hole is closed by the first valve. On the other hand, the power transmission member is engaged with the second arm and moves the second arm in the counterclockwise direction. As a result, the second valve is opened and the second injection hole is opened.

Then, the cleaning liquid that has entered the second valve from the inflow path is injected from the second injection hole toward the inner wall surface of the bathtub. When the rotation shaft further rotates to the left in this state, the second arm locks with the second locking part of the jet, the jet rotates to the left together with the second arm, and the second jet The injection position of the hole changes the injection direction of the cleaning liquid while moving around the circumference. After the left-rotating injection from the second injection hole has been performed for a predetermined period of time, the rotary shaft is rotated to the right to return to the original position, that is, the neutral position, and the rotary drive source is stopped. The restraining force on the leftward rotational movement of the second arm is released, the second valve closes the second injection hole, and the injection of cleaning liquid into the bathtub is stopped.

In this second invention, the cleaning liquid is sprayed over the entire area of the inner wall surface of the bathtub by the injection caused by the rightward circumferential rotational movement of the first injection hole and the injection caused by the leftward circumferential rotational movement of the second injection hole. The dirt on the inner wall of the bathtub is removed by the interaction of the chemical cleaning power of the cleaning liquid and the impact force of the jet.

〔Example〕

Embodiments of the present invention will be described below based on the drawings. 1st
The figure shows an embodiment of the cleaning nozzle according to the first invention. In the figure, a hole 15 for mounting a nozzle is formed in one side wall of the bathtub 1 on the non-tiled side, and a case base 16 is attached to the hole 15 for mounting the nozzle. This case base 16 has a cylindrical front frame case 17 with a flange that is fitted into the hole 15 for installing the nozzle from the inside of the bathtub 1, and a front frame case 17 from the outside of the bathtub 1.
The front frame case 17 and the rear frame case 18 are fastened together by the screws.
It is airtightly fixed to the wall surface of the bathtub 1 via a gasket 19.

A cleaning liquid inflow passage 21 is provided in the rear frame case 18, and a pipe connection portion 22 is provided on the side wall of the rear frame case 18.
is provided in a protruding manner, and cleaning liquid is supplied to the inflow passage 21 through a pipe line of a cleaning system connected to this pipe connection part 22 .

The injection body 23 is attached to the gasket 2 in the cylinder hole of the front frame case 17.
0, and is fitted airtightly and rotatably. A cleaning liquid injection chamber 24 is formed within the injection body 23 . A communication hole 26 is formed in the rear end wall 25 of the injection chamber 24 to allow the injection chamber 24 and the inflow passage 21 to communicate with each other. In addition, a plurality of injection holes 28 a whose injection directions are different from the front peripheral wall of the injection body 23 to the front end wall 27,
28b and 28c are formed. Injection hole 28
a is formed in a direction in which the central axis of the cleaning liquid jet (the central axis of the cleaning liquid jet pattern) is substantially perpendicular to the rotational axis of the jet body 23, and is also a jet hole formed in the front end wall 27; 28 is formed substantially parallel to the rotational axis of the injection body 23, and furthermore, the injection hole 28c formed almost at the boundary between the front end wall 27 and the peripheral wall is oriented with respect to the rotational axis of the injection body 23. The central axis of the cleaning liquid jet is formed diagonally outward.

The cleaning liquid injected from the injection hole 28a reaches the wall surface 30 of the bath Wl where the cleaning nozzle is attached, and the bottom and sides of the bathtub 1 in the vicinity thereof, and the cleaning liquid injected from the injection hole 28b reaches the wall surface 30 of the bath Wl in the vicinity thereof. Opposite wall surface (not shown)
The cleaning liquid that is injected from the injection hole 28c reaches the bottom and side of the bathtub in the area near the injection hole 28c.
The injection direction is set so that the overlapping portion with the injection areas of the injection holes 8a and 28b reaches the bottom surface of the bathtub 1 and the peripheral area of the opposing wall surface facing the wall surface 30.
8a.

By rotating the spray body 23 while spraying the cleaning liquid from the spray holes 28a, 28b,
The cleaning liquid sprayed from 28C is distributed over the entire area of the inner wall surface of the bathtub. Each of the injection holes 28a.

The outlets of 28b and 28c are formed into elongated holes as shown in Fig. 2, and the cleaning liquid sprayed from these holes forms a flat (fan-shaped) pattern, which increases the concentration of the cleaning liquid and creates a strong collision force. Thus, the cleaning liquid can be sprayed onto the inner wall surface of the bathtub.

A motor 31 as a rotation drive source is attached to the rear end wall 29 of the rear frame case 18, and a rotating shaft 31a connected to the output shaft of the motor 31 rotates the rear end wall 29 of the rear frame case 18. through the inflow passage 2 in a watertight manner.
The distal end thereof is connected to the rear end wall 25 of the ejector 23, so that the ejector 23 rotates in conjunction with the rotation of the motor 31.

Note that the system configuration of the cleaning device in this embodiment can take various configurations, but for example, it can be configured similarly to the system shown in FIG. 9 explained in connection with the proposed device. The outgoing pipe 6 connected to the outlet side of the rear frame case 18 is connected to the pipe connecting portion 22 of the rear frame case 18.

This embodiment is constructed as described above, and its operation will be explained next. When cleaning the bathtub, cleaning liquid is supplied from the outgoing pipe 6 side to the inflow passage 21, and by rotating the motor 31 in this state, the cleaning liquid is supplied to each injection hole 28a, 2.
8b and 28c in different directions. Moreover, as the cleaning liquid injected from the injection holes 28a and 28c moves in the circumferential direction due to the rotation of the injection body 23, the cleaning liquid is sprayed over the entire area of the inner wall surface of the bathtub, and the dirt on the inner wall surface of the bathtub is effectively removed. be dropped. After this circulating injection of the cleaning liquid is completed, water or hot water that does not contain detergent flows through the outgoing pipe 6! 21, and the injection holes 28a, 2 are supplied to each injection hole 28a, 2 while rotating the injection body 23 by the rotation of the motor 3I.
As a result of hot water or water being sprayed from 8b and 28c over the entire area of the inner wall surface of the bathtub, the cleaning liquid adhering to the inner wall surface of the bathtub and the dirt components removed by the cleaning liquid are washed away and discharged from the drain hole of the bathtub. Automatic cleaning of the bathtub is completed.

As described above, in this embodiment, by attaching one cleaning nozzle 2 to one wall surface of the bathtub facing the outer wall 12 of the bathroom 1, it becomes possible to effectively clean the bathtub 1. And maintenance of the piping connected to the nozzle 2 can be easily performed from outside the bathroom using the holes 13 in the outer wall 12, which is very convenient.

An embodiment of the bathtub cleaning nozzle of the second invention is shown in FIGS. 3 to 7. In the description of this embodiment, the same parts as those shown in FIG. Also in this second embodiment of the invention, the cleaning nozzle 32 is attached to one wall surface 30 of the bathtub facing the outer wall 12 of the bathroom, which is easy to maintain, using the hole 15 for nozzle attachment. The cleaning nozzle 32 includes a case base 16 consisting of a front frame case 17 and a rear frame case 18, and a reversible motor capable of forward and reverse rotation as a rotational drive source that is attached to the rear side of the case base 16 using a metal fitting 33. 34, and an inflow passage 21 and a conduit connection part 22 are formed in the rear frame case 18.

The front frame case 17 is fitted with a jetting body 3 via a gasket 20.
5 is fitted airtightly and rotatably, and an injection chamber 24 is formed inside the injection body 35. A retaining plate 36 having a communication hole 26 is fitted and fixed to the rear end opening side of the injection chamber 24 using screws. A first injection hole 37 and a second injection hole 38 are formed from the peripheral wall of the injection body 23 to the front end wall. Both the base end sides of the first injection hole 37 and the second injection hole 38 are connected to the injection chamber 2.
It opens at 4. The outlet at the tip of the first injection hole 37 is oriented in the direction in which the cleaning liquid is sprayed onto the wall surface 30 and the side and bottom surfaces of the bathtub in the vicinity thereof, and the outlet at the tip of the second injection hole 38 The outlet is oriented in a direction that partially overlaps the spray area of the cleaning liquid sprayed from the first injection hole 37 and sprays the cleaning liquid over the entire remaining area of the inner wall surface of the bathtub. The outlets of the first injection hole 37 and the second injection hole 38 are flat-shaped (sector-shaped) nozzle openings, similar to the embodiment of the first invention shown in FIG. This makes it possible to obtain a spray pattern that spreads over the area.

The base end side of a rotary shaft 40 is connected to the output shaft of the reversible motor 34, and the distal end side of the rotary shaft 40 passes through the rear frame case 18 watertightly and rotatably through a packing, and is further removed. is inserted into the injection chamber 24 through the shaft hole of the stop plate 36. The rear frame case 18
and the removal stop plate 36 can be freely rotated relative to each other,
Similarly, this rotary shaft 40 has a plate-shaped first shaft which can freely rotate relative to the rotary shaft 40.
The 5th end side of each of the arm 4 and the second arm 42 is fitted, and there are retaining rings on both sides of the first arm 41, the second arm 42, and the retaining plate 36 to prevent the detachment. 43a to 43d are fitted. and rotating shaft 40
A support plate 44 is fixed to the distal end surface of the support plate 44 by a set screw 45, and an operating pin 46 is provided horizontally and laterally protruding from the top side of the support plate 44. This operating pin 46 and support plate 4
4 constitutes a power transmission member.

The first arm 41 has a first concave shape in which the actuating pin 46 is engaged when the rotating shaft 40 is rotated to the right (clockwise) by a predetermined amount from the neutral position shown in FIGS. 3 and 4. The second arm 42 is provided with a concave second locking surface 47 on which the actuating pin 46 locks when the rotating shaft 40 rotates to the left (counterclockwise) by a predetermined amount from the fixed position.
A locking surface 48 is formed. In addition, the first arm 4
A first valve 50 that opens and closes the inlet side of the first injection hole 37 is provided on the tip side of the second arm 42, and a first valve 50 that opens and closes the inlet side of the first injection hole 38 is provided on the tip side of the second arm 42. 2nd to open and close
A valve 5I is provided. A spring support shaft 52.53 is provided on the bottom side of the first arm 41 and the second arm 42 (on the right side of the arm 41.42 in FIG. 4). A spring 54 is attached, and the first arm 41 is pressed counterclockwise by the elastic restoring force of the first spring 54, and the first valve 5° is pressed against the valve seat portion of the first injection hole 37. The first injection hole 37 is closed by pressure contact. Similarly, a second spring 55 is attached to the spring support shaft 53.
is attached, and the second arm 42 is pressed clockwise by the elastic restoring force of the second spring 55, and in response to this pressing force, the second valve 51 closes on the valve seat of the second injection hole 38. The second injection hole 38 is closed. In addition, a first locking portion is provided on the peripheral wall of the injection body 23 to lock the first arm 41 when the first arm 41 rotates to the right (clockwise) by a predetermined amount from the normal position shown in FIGS. 3 and 4. and a second locking step that locks when the second arm 42 rotates to the left (counterclockwise) by a predetermined amount from the normal position shown in FIGS. 3 and 4. A second locking step 57 is provided as a section. Although the system configuration of the bathtub cleaning device in this embodiment can take various forms, for example, a system configuration as shown in FIG. 9 can be adopted, and in this case, the heat exchanger The outlet side of the outgoing pipe 6 connected to the outlet side of the case base 16 is connected to the conduit connection part 22 of the case base body 16.

The embodiment of the second invention is constructed as described above, and its operation will be explained below. First, the pump 4 of the system as shown in FIG. 9 is activated, and the cleaning liquid stored in the bathtub 1 is heated through the heat exchanger 5 and the cleaning liquid is supplied to the inflow passage 21 via the outgoing pipe 6. On the other hand, the reversible motor 34 is moved, for example, from the normal position shown in FIGS. 3 and 4 to the right (
When the actuating pin 46 rotates clockwise), the actuating pin 46 that is interlocked with the rotating shaft 40 also rotates to the right, and when the actuating pin 46 rotates by a predetermined amount, the actuating pin 46 moves to the first position of the first arm 41 as shown in FIG.
The first arm 41 is rotated to the right against the pressing force of the first spring 54. As a result, the first valve 50 opens the first injection hole 37 and the first injection hole 3
The cleaning liquid is sprayed in a flat pattern from the outlet 7 onto the bathtub wall surface 30 and its vicinity.

When the rotating shaft 40 further rotates clockwise, the first arm 41 is locked to the first locking step 56, and the rotating shaft 40, the first arm 41, and the injection body 23 are connected to each other, as shown in FIG. rotate to the right as one. The rotation of the spray body 23 causes the first spray hole 37 to perform a circumferential rotation movement, and sprays the cleaning liquid onto the entire surface of the bathtub wall surface 30 and the entire area of the side and bottom surfaces of the bathtub in the vicinity thereof.

After waiting for the right rotation injection of the injection body 23 for a predetermined time, the reversible motor 34 is then rotated in the reverse direction.

When the reversible motor 34 rotates in the opposite direction, the operating bin 46 rotates to the left, and as a result, the first arm 41 receives the elastic restoring force of the first spring 54 and follows the rotational movement of the operating bin 46. When the operating bin 36 rotates counterclockwise by a predetermined amount, the first
The valve 50 is opened by the elastic restoring force of the first spring 54.
The first injection hole 37 is closed, and the cleaning liquid injection from the first injection hole 37 is stopped.

As the rotating shaft 40 further rotates to the left, the actuating pin 46 is locked to the second locking surface 48 of the second arm 42, as shown in FIG. Then, the second arm 42 rotates counterclockwise against the elastic restoring force of the second spring 55, and the second valve 51 opens the second injection hole 38. As a result,
The cleaning liquid enters the second injection hole 38 from the injection chamber 24,
From the outlet side, a flat pattern of cleaning liquid is sprayed diagonally downward as shown in FIG. When the rotating shaft 40 further rotates to the left, the second arm 42 is locked to the second locking step 57 of the injection body 23, and the rotating shaft 40 and the second arm are locked, as shown in FIG. 42 and the injection body 23 rotate counterclockwise integrally. This rotation of the injection body 230 causes the second injection hole 38 to rotate around the circumference.
The cleaning liquid injected from the first injection hole 37 partially overlaps the area injected by the first injection hole 37 and is injected over the entire remaining inner wall surface of the bathtub.

After the left-rotation injection of the injection body 23 is waited for a predetermined time, the water supply on-off valve 10 shown in FIG. Passage 21
By supplying clean water (or hot water) that does not contain sludge from the second injection hole 38, the cleaning liquid adhering to the inner wall surface of the bathtub and the dirt components removed by the cleaning liquid are washed away. It is discharged from the drain hole of the bathtub.

If the reversible motor 34 is rotated clockwise after the spray body 23 is rotated counterclockwise to spray water (or hot water) for a predetermined period of time, the first spray hole 37 is opened in the same manner as when spraying the cleaning liquid. The valve is activated, and clean water (or hot water) is injected from the first injection hole 37 onto the remaining part of the inner wall surface of the bathtub, thereby washing away the cleaning liquid on the inner wall surface of the bathtub and the dirt components removed by the cleaning liquid. The water is drained from the bathtub drain hole. Then, the reversible motor 34 is rotated back to the normal position (neutral position) shown in FIGS.
4, the first injection hole 37 and the second injection hole 3B are closed by the corresponding first valve 50 and second valve 51, respectively, and the injection of water (or hot water) is stopped. state, and bathtub cleaning is completed.

Also in this embodiment of the second invention, by providing one cleaning nozzle on one wall of the bathtub, the cleaning liquid can be sprayed over the entire N range of the inner wall of the bathtub. Therefore, by providing a cleaning nozzle, for example, on one wall surface 3o of the bathtub 1 facing the outer wall 12 of the bathroom, maintenance of the cleaning nozzle and the pipe line connected to this cleaning nozzle can be carried out by using the hole 13 provided in the outer wall 12 in the bathroom. This can be done easily from outside, which is very convenient.

Note that the first and second inventions are not limited to the corresponding embodiments, and can be implemented in various ways. For example, in each of the above embodiments, the injection hole of the cleaning nozzle is Although the outlet of the injection hole is shaped like a long slender hole so that the spray pattern of the cleaning liquid is flat, the outlet of the injection hole may be made into a circular hole shape and the spray pattern of the cleaning liquid is made into a conical pattern. If the spray pattern is made into a flat pattern, the density of the cleaning liquid can be concentrated by avoiding atomization due to dispersion of the cleaning liquid, thereby increasing the impact force of the cleaning liquid against the inner wall of the bathtub. This makes the cleaning effect more favorable.

Further, in each of the above embodiments, the cleaning nozzle is provided on the bathtub wall surface, but it may be provided on the lid of the bathtub 1.

〔Effect of the invention〕

According to the first and second inventions, by rotating the spray body of the cleaning nozzle and spraying the cleaning liquid, it is possible to spray the cleaning liquid over the entire area of the inner wall surface of the bathtub with one cleaning nozzle. , you can cleanly remove dirt from the inner walls of the bathtub.

In addition, since the inner wall surface of the bathtub can be cleaned with one cleaning nozzle, by attaching this one cleaning nozzle to one wall surface of the bathtub facing the outer wall of the bathroom where maintenance is easy, for example, the cleaning nozzle and this cleaning It becomes possible to easily maintain the conduit connected to the nozzle, and the problems of the previously proposed device can be solved at once, and its technical value is enormous.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional configuration diagram showing one embodiment of the first invention;
The figure is an explanatory diagram of the flower shape of the outlet part of the injection hole in the same embodiment, and FIG. 3 is a cross-sectional configuration diagram showing an embodiment of the second invention.
FIG. 4 is a sectional view taken along line A-A of the spray body in FIG. 3, FIGS. 5 to 8 are explanatory diagrams of the operation of the same embodiment, and FIG. 9 is a bathtub cleaning device previously proposed by the present inventors. Fig. 10 is an explanatory diagram showing a typical bathtub installation form as a vertical section of the bathroom, and Fig. 11 is an explanatory diagram showing an example of a common bathtub installation form as seen from the plane side of the bathroom. It is. 1... Bathtub, 2.2a, 2b... Washing nozzle, 3.
... Return pipe, 4... Pump, 5... Heat exchanger, 6.
... Outgoing pipe, 7... Detergent tank, Death... Detergent on/off valve, 1
0...Water supply on/off valve, 11...Water supply pipe, 12...Outer wall, 13...Hole, 14...Equipment, 15...Nozzle mounting hole, I6...-Case base, 17... Front frame case, 18... Rear frame case, 19.20... Packing, 21... Drifter passage, 22... Pipe connection part, 23-
... Injector, 24... Injection chamber, 25... Rear end wall, 2
6...Communication hole, 27...Front end wall, 28a, 2
8 b, 28 c - injection hole, 29...rear end wall, 3
0...Wall surface, 31...Motor, 31a...Rotating shaft, 32...Cleaning nozzle, 33...Metal fittings, 3
4... Reversible motor, 35... Injector, 36... Removal stop plate, 37... First injection hole, 38... Second injection hole, 40... Rotating shaft, 41...-first arm,
42... Second arm, 43a-43d... Retaining ring, 44... Support plate, 45... Stopper, 46... Operating pin, 47-... First locking surface , 48... second locking surface, 50... first valve, 51... second valve, 52
, 53--Spring support shaft, 54--First spring, 55
...Second spring, 56...First locking step, 57.
...Second locking step part, 58...Drain valve, 59...Water flow sensor, 60...-Temperature sensor, 61...Opening/closing side'
<'11 valves.

Claims (2)

[Claims] (1) A case base attached to a part facing the inside of the bathtub and provided with an inflow passage for cleaning liquid inside, a spray body provided watertightly and rotatably on the case base, and this spray body and a rotational drive source for rotating the spray body, and the spray body has one or more injection holes communicating with the inflow passage of the case base, and the spray body has one or more injection holes communicating with the inflow passage of the case base, with the center axis of the cleaning liquid jet being offset with respect to the rotational axis of the spray body. A cleaning nozzle for a bathtub cleaning device. (2) A case base that is attached to a part facing the inside of the bathtub and has an inflow path for cleaning liquid inside, a spray body that is watertightly and rotatably provided on the case base, and this spray body. a rotational drive source that rotates the rotation drive source; the injection body has a first injection hole and a second injection hole that communicate with the inflow passage of the case base body and are formed in different injection directions; A rotating shaft interlocked with the drive source is inserted watertightly and rotatably into the case base, and a first arm and a second arm are respectively fitted into the rotating shaft so as to be rotatable relative to the rotating shaft. The first arm has a first valve that opens the first injection hole by rotating the first arm clockwise, and the second arm has a first valve that opens the second injection hole by rotating the first arm to the left of the second arm. Second valves that open upon rotational movement are linked to each other, and when the first arm rotates to the right by a predetermined amount, the injection body engages with the first arm and engages the first arm and the injection body. a first locking portion that rotates the body integrally; and a second locking portion that locks the second arm when the second arm rotates counterclockwise by a predetermined amount to rotate the second arm and the jet body integrally. A second locking portion is provided on the rotating shaft to rotate the first arm clockwise by locking the first arm as the rotating shaft rotates clockwise; A cleaning nozzle for a bathtub cleaning device that is connected to a power transmission member that locks onto a second arm and rotates the second arm to the left as the second arm rotates to the left.