JPH1066659A - Bathtub washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wash the inside of a bathtub with the small amount of washing water and to improve washing efficiency by forming a circulation port on the bottom surface of a hot water accumulation part formed on the bottom surface of the bathtub in a recessed shape, circulating water or hot water supplied from a water supply part through a bathtub washer to the hot water accumulation part by a pump and performing washing by the bathtub washer. SOLUTION: At the time of washing the bathtub, after remaining hot water is discharged, a detergent for washing the bathtub is put inside the bathtub 1 and this bathtub washing device is activated. Then, the water or the hot water is supplied from the bathtub washer 4 to the inside of the bathtub 1 only for a prescribed amount required for washing and the washing water to which the detergent is dissolved is accumulated in the hot water accumulation part 2 formed on the bottom surface of the bathtub 1. Then, the washing water is sucked from the circulation port 3 by a pump 8, the washing water is sent to the bathtub washer 4 through a heating means 10 while filtering fur and dust, etc., by a filter 9 and the inside of the bathtub 1 is washed. The bathtub washer 4 washes the inner wall of the bathtub 1 by rotating a rotary cylindrical part provided with a nozzle 4a by the drive of a motor 5 and jetting the supplied water or the like from the nozzle 4a in all directions.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub cleaning apparatus for automatically cleaning a bathtub.

[0002]

2. Description of the Related Art Conventionally, washing or cleaning of a bathtub is generally performed manually using a detergent, a brush, or the like. The cleaning work in the bathtub by hand requires physical strength, such as performing a mid-low back posture, and it is hard work especially for elderly people. In order to solve these problems, the following is disclosed. a, Japanese Utility Model Laid-Open Publication No. 64-8377 (hereinafter referred to as "A") discloses a rotary cleaning nozzle which can rotate by the injection pressure of a cleaning liquid, and a liquid feed pipe connected to the rotary cleaning nozzle and connected to a faucet of water supply. An electromagnetic valve provided in the middle of the liquid supply pipe, and a detergent supply means connected to the liquid supply pipe on the downstream side of the electromagnetic valve, for supplying a constant amount of detergent, and
After supplying the detergent from the detergent supply means, open the solenoid valve, pressurize the detergent by the water pressure from the faucet and eject it from the rotary washing nozzle, and after a predetermined time, open the solenoid valve again. A bathtub cleaning device provided with a control unit for controlling the energization time is disclosed. b, In Japanese Utility Model Laid-Open No. 4-28866 (hereinafter referred to as "B"), a nozzle accommodating port is formed in a part of the inner wall of the bathtub opposed thereto, and an injection nozzle for alternately ejecting the cleaning liquid is incorporated into the nozzle accommodating port. In addition, a bathtub cleaning apparatus in which the injection nozzle is configured to swing freely by a driving source is disclosed. c, Japanese Unexamined Patent Publication No. 3-212238 (hereinafter referred to as "C") discloses an automatic water supply / drainage cleaning of a bathtub in which water from a water supply pipe is jetted from a cleaning nozzle provided on the bottom surface of the bathtub to the inner wall of the bathtub. An apparatus is disclosed. d, Japanese Patent Application Laid-Open No. Hei 4-22324 (hereinafter referred to as Japanese Patent Application Laid-Open Publication No. Hei 4-22324) discloses an injection nozzle attached to a bathtub cover toward the inside of the bathtub, a buffer formed at the bottom of the bathtub, and a circulation pump for circulating washing water. A bathtub cleaning apparatus is disclosed which has cleaning water stored in a buffer, circulates the cleaning water with a circulation pump, and jets the cleaning water from an injection nozzle to the inner wall of the bathtub to wash the inside of the bathtub. .

[0003] However, the above-described conventional bathtub cleaning apparatus has the following problems. The bath tub cleaning device described in Japanese Patent Application Publication No. 2005-157686 has a problem that the inside of the bath tub is cleaned while water is supplied from the faucet to the rotary cleaning nozzle, so that a large amount of water is used, which is uneconomical. In addition, since the rotating washing nozzle protrudes from the inner wall surface of the bathtub, the rotating washing nozzle hinders the bather during bathing, and gives the bather discomfort, and also puts a hand on the protruding rotating washing nozzle. There was a problem that the rotary washing nozzle was damaged and durability was poor. In the bath tub cleaning device described in No. B publication, after the cleaning liquid is sprayed into the bath tub and slightly collected,
Since the cleaning liquid accumulated in the bathtub is circulated by the circulation pump and the cleaning liquid is sprayed from the injection nozzle onto the inner wall of the bathtub to perform cleaning, the cleaning liquid accumulated on the bottom surface of the bathtub cannot be cleaned below the cleaning liquid level. There was a problem that dirt and the like on the bottom inner wall surface and the bottom surface could not be removed. The automatic bath water supply / drain cleaning device described in the publication No. C has a problem that a large amount of water is used at the time of cleaning because the water is directly supplied from the water supply pipe to the cleaning nozzle, which is uneconomical. Further, since the washing nozzle is provided on the bottom surface of the bathtub, there is a problem that water cannot be sprayed toward the bottom surface of the bathtub and dirt on the bottom surface of the bathtub cannot be removed. The bath tub cleaning device described in Japanese Patent Publication No. 2 has a problem in that the spray nozzle is attached to the lid of the bath tub, so that the weight of the lid of the bath tub increases, making it difficult to remove the lid of the bath tub. In addition, it is necessary to connect the injection nozzle attached to the lid of the bathtub and the water supply pipe with a joint every time the bathtub is washed, which has a problem that the operability of the washing device is lacking and the device is complicated. .

Accordingly, the present applicant has conducted intensive studies in order to solve these problems, and as a result, has found that a bathtub washer attached to the wall of a bathtub, a cleaning tank for storing hot water or water, and a cleaning tank A bath tub cleaning unit having a pump for absorbing and discharging hot water or water in a tank "has been completed, and a patent application has been filed as Japanese Patent Application No. 8-160713 (hereinafter referred to as" E "prior application). According to e-prior application, the washing water can be circulated without using a large amount of washing water and the inside of the bathtub can be washed, and the dirt on the inner wall surface and the bottom surface of the bathtub bottom can be smoothly removed. The effect was achieved.

[0005]

However, the above-mentioned prior application requires the installation of a washing tank for storing hot water or water for washing, so that the apparatus becomes large and requires a large space for installation. There was a problem that productivity was low and production cost was high. In addition, there is a problem that the structure of the apparatus is complicated and maintenance performance such as cleaning of the cleaning tank is lacking.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems. The cleaning water can be circulated and the inside of the bathtub can be cleaned with a small amount of cleaning water, so that the cleaning efficiency can be improved and the structure is simple.
An object of the present invention is to provide a bathtub cleaning apparatus which can be reduced in size, is low in cost, and has excellent productivity.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, a bathtub cleaning apparatus according to the present invention comprises a bathtub, a water pool formed in a bottom surface of the bathtub, and a bottom surface of the water pool. A drain port and a circulation port formed in the bathtub, a bathtub washer disposed on a side wall of the bathtub, a water supply pipe connected to the bathtub cleaner, a water supply unit connected to the water supply pipe, and the circulation A water absorption pipe connected to a mouth, and a pump connected to the water absorption pipe and for absorbing hot water or the like in the water pool section,
Heating means disposed between the pump and the water supply pipe,
A three-way valve disposed between the heating means and the pump,
Is provided. With this configuration, the water or hot water supplied from the water supply unit to the hot water pool via the bathtub washer can be circulated by the pump, and the inside of the bathtub can be cleaned with the bathtub cleaner, and a small amount of water or hot water supplied to the hot water pool can be used. It has the function of cleaning the inside of the bathtub. In addition, since the recess is formed in the bottom of the bathtub, the pump has a function of preventing air from being sucked by the pump during cleaning of the bathtub. Furthermore, since the heating means is provided between the pump and the water supply pipe, the water and the like in circulation can be heated and the effect of cleaning the inside of the bathtub can be improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bath tub cleaning apparatus according to claim 1 of the present invention comprises a bath tub, a basin formed concavely on the bottom of the tub, and a drain formed on the bottom of the basin. A mouth and a circulation port, a bathtub washer disposed on a side wall of the bathtub, a water supply pipe connected to the bathtub washer, a water supply unit connected to the water supply pipe, and a water supply unit connected to the circulation port A water absorption pipe, a pump connected to the water absorption pipe, for absorbing hot water or the like in the water pool, a heating means disposed between the pump and the water supply pipe, and a heating means provided between the heating means and the pump. And a three-way valve provided. This has the effect of cleaning the inside of the bathtub with the bathtub washer while circulating the water or hot water supplied from the water supply unit to the hot water reservoir via the bathtub washer with the pump. In addition, since the recess formed in the bottom of the bathtub is formed with a recess, the water or hot water supplied into the pool can be circulated to wash the inside of the bathtub with a small amount of water. This has the effect of preventing the pump from sucking air during cleaning. Further, since the heating means is disposed between the pump and the water supply pipe, the water and the like in circulation can be heated and kept warm. Here, as the pool, if the capacity of the pool is too small, the washing water will collect on the bottom of the bathtub during cleaning in the bathtub, and the bottom of the bathtub will not be able to be cleaned. If it is too large, it will be difficult to take a bath, for example, the feet will be taken off by the concave water pool formed on the bottom of the bathtub during bathing, so it will be 5% to 15% of the bottom area of the bathtub. Preferably. When a flow sensor is provided between the water supply unit and the bathtub washer, the amount of water supplied to the bathtub can be adjusted by detecting the amount of water supplied from the water supply unit to the bathtub, thereby further saving labor. be able to.

According to a second aspect of the present invention, there is provided a bathtub cleaning apparatus according to the first aspect, wherein the bottom surface of the bathtub is 1 ° to 4 °, preferably 1.degree. It has a configuration formed at an elevation angle of 5 ° to 2 °.
This allows the water, etc., that has washed the inside of the bathtub to quickly flow into the sump along the bottom of the bathtub, so that even a small amount of water can be circulated by the pump, and the drainage of remaining hot water etc. in the bathtub can be controlled by the flow rate. It has the effect of draining without leaving much dust etc. on the bottom of the bathtub. Here, the inclination angle is 1
If it is smaller than 0 °, the flow velocity of hot water flowing through the bottom of the bathtub will be slowed down, and the circulation of washing water will be lacking, and it will be easy for dust etc. to remain on the bottom of the bathtub. Without giving a bather uncomfortable feeling.

According to a third aspect of the present invention, there is provided a bathtub cleaning apparatus according to any one of the first and second aspects, wherein the bathtub cleaning device extends from the inner wall surface of the bathtub to the outside of the bathtub. A cylindrical housing formed as described above, a sliding guide formed on an inner wall of the housing, a straight-moving cylindrical portion slidable along the sliding guide in an axial direction of the housing, and a straight-moving cylindrical portion. A convex portion formed at the tip,
A rotating cylinder portion rotatably disposed in the rectilinear cylinder portion, a driving portion for rotating the rotating cylinder portion, a water supply port disposed on the driving portion side of the housing, and communicating with the rotating cylindrical portion; A tip cylindrical portion protruding from the convex portion, a nozzle portion orthogonal to the axis of the tip cylindrical portion and rotatably disposed, and the convex portion formed on the nozzle portion. And a meshing portion that meshes with the gear. Thereby, since water or the like is jetted from the nozzle portion of the bathtub washing device to the inner wall surface of the bathtub, the inside of the bathtub can be washed by the injection pressure of water or the like. In addition, since the rectilinear cylindrical portion of the bathtub washer is slidable in the axial direction of the cylindrical housing formed from the inner wall surface of the bathtub to the outside of the bathtub, a nozzle portion is provided on the inner wall of the bathtub when bathing or the like. Is stored so as not to disturb bathing, and the bathtub can be washed by protruding the nozzle portion from the inner wall surface of the bathtub only when the bathtub is washed. Furthermore, the nozzle portion can rotate around the axis of the rotating cylindrical portion, and the nozzle portion rotates while the convex portion formed at the tip of the rectilinear cylindrical portion and the meshing portion formed in the nozzle portion mesh with each other, It has the effect that water and the like can be evenly sprayed on the inner wall surface of the bathtub for cleaning. Here, as the driving unit, use is made of a motor, the water pressure of tap water, the water pressure of a water flow by a pump, or the like. In addition, the sliding operation of the rectilinear cylindrical portion can be performed automatically and / or manually, and the nozzle portion can be projected from the inner wall surface of the bathtub by sliding the rectilinear cylindrical portion at the time of cleaning or maintenance of the bathtub washer. preferable.

According to a fourth aspect of the present invention, there is provided a bathtub cleaning apparatus according to any one of the first to third aspects, wherein the drainage port and the circulation port are replaced with the hot water pool part. A drain / circulation port formed in a concave shape on the bottom surface and connected to the water absorption pipe, a drain pipe connected to the drain / circulation port, and a three-way valve disposed between the drain / circulation port and the pump. , Is provided. By switching the three-way valve, the drainage of water in the bathtub and the circulation of water to the bathtub cleaner can be performed at the drainage / circulation port, simplifying the structure of the bottom of the pool at the bottom of the bathtub. Has the effect of being able to.

According to a fifth aspect of the present invention, there is provided a bathtub cleaning apparatus according to any one of the first to fourth aspects, wherein the scale is disposed between the circulation port or the drain / circulation port and the pump. It has a configuration provided with a filter for filtering dust and dust. This prevents the scale or dust in the water from being sucked into the pump during the circulation of the water or the like during the cleaning, and has an effect of improving the durability of the pump.

According to a sixth aspect of the present invention, there is provided a bathtub cleaning apparatus according to any one of the first to fifth aspects, wherein an optical sensor for detecting opening and closing of a lid of the bathtub is provided on a side wall of the bathtub. And the like, and a control unit for controlling the washing operation of the bathtub based on the output signal of the sensor. This allows the sensor to detect the opening and closing of the bathtub lid and perform control such as stopping the cleaning when the bathtub lid is opened during the cleaning of the bathtub. And has the effect of preventing accidents such as burns due to the splash of heated water and the like around. Here, a sensor such as a magnetic sensor is used in addition to the optical sensor as the sensor. When a magnetic sensor is used, a magnetic sensor is incorporated in the flange of the bathtub, and a magnetic material is incorporated in the lid of the bathtub to detect the opening and closing of the bathtub lid.

(Embodiment 1) Hereinafter, Embodiment 1 of a bathtub cleaning apparatus according to the present invention will be described. FIG. 1 is an overall system diagram of the bathtub cleaning apparatus according to the first embodiment, and FIG. 2 is a sectional view taken along line AA of FIG. In FIG. 1 or FIG. 2, reference numeral 1 denotes a bathtub having a capacity of, for example, 200 l;
Is formed in a concave shape on the bottom surface of the tub, for example, a basin having a capacity of 2 liters, 3 is a circulation port formed on the bottom surface of the basin portion 2 and circulates water and the like, and 4 is disposed on a side wall of the bathtub 1. , 4a is a nozzle of the bathtub washer 4, 5 is a motor connected to the bathtub washer 4, 6 is a water supply pipe connected to the bathtub washer 4, and 7 is connected to the circulation port 3. Water absorption pipe, 8
Is a pump connected to the water absorption pipe 7 for sucking and circulating water and the like in the water pool section 2, and 9 is a water absorption pipe 7 on the suction side of the pump 8.
A filter that is installed in
10 is a heating means provided between the pump 8 and the water supply pipe 6,
Reference numeral 11 denotes a three-way valve disposed between the pump 8 and the heating means 10, 12 denotes a drain pipe connected to the three-way valve 11, 13 denotes a water supply unit connected to the water supply pipe 6, and supplies water to the bathtub washer 4;
Is a flow sensor disposed on the water supply pipe 6 between the bathtub washer 4 and the water supply unit 13, and 15 is an open / close valve that is disposed between the water supply unit 13 and the flow sensor 14 and opens and closes according to an output signal of the flow sensor 14. , 16 are the lid of the bathtub 1, 仰 is the elevation angle of the bottom of the bathtub 1 from the upper edge of the pool basin 2, 17 is a drain port formed on the bottom of the pool basin 2, 18 is a drain plug for closing the drain port 17 It is a stopper. Note that the elevation angle Θ is formed at 1.5 ° to 2 °.

Hereinafter, cleaning of the bathtub in the bathtub cleaning apparatus according to the first embodiment will be described. After the end of bathing, the drain plug 18 is removed from the drain port 17 and the bathtub 1 is
Drain the remaining hot water inside. After draining the remaining hot water, drain plug 1 again
8 is attached to a drain port 17, a detergent for washing the bathtub is put in the bathtub 1, the lid 16 of the bathtub 1 is closed, and a start switch (not shown) of the bathtub washing device is turned on. After the start of the bathtub cleaning device, water or hot water is supplied from the water supply unit 13 to the bathtub cleaning device 4 via the water supply pipe 6, and the water or hot water is supplied from the bathtub cleaning device 4 into the bathtub 1 in a predetermined amount (this amount). In the first embodiment, approximately 8 l)
Is supplied. After the flow rate sensor 14 detects that a predetermined amount of water or hot water has been supplied into the bathtub 1, the on-off valve 15 is closed. The detergent contained in the bathtub 1 is dissolved by the water or hot water supplied into the bathtub 1 and becomes washing water for the bathtub 1, and is stored in a hot-water pool portion 2 formed on the bottom surface of the bathtub 1. Next, the pump 8 starts operating, the washing water is absorbed from the circulation port 3 through the water absorption pipe 7 and the filter 9, and while the filter 9 is filtering descaling and dust, the bathtub washer 4 is heated through the heating means 10.
Tub washing machine 4 while sending washing water to
To wash the inside of the bathtub 1. Note that the washing water is heated and kept at a temperature of approximately 70 ° to 75 ° by the heating unit 10. After circulating the washing water for a predetermined time and washing the inside of the bathtub 1,
The three-way valve 11 switches to the drain pipe 12 side, and the washing water is drained. Next, a predetermined amount of water (approximately 8 liters in the first embodiment) necessary for rinsing in the bathtub 1 is supplied from the water supply unit 13 into the bathtub 1 via the water supply pipe 6 and the bathtub cleaner 4. After the flow sensor 14 detects that a predetermined amount of water has been supplied to the inside, the on-off valve 15 is closed. Thereafter, the pump 8 starts operating, absorbs water in the hot water pool 2 from the circulation port 3 through the water suction pipe 7 and the filter 9, and filters the scale and dust through the filter 9 and the heating means 10. Then, water is sent to the bathtub washer 4, and the bathtub 1 is rinsed while circulating the water. In addition, it is preferable that the power supply of the heating means 10 be turned off during the rinsing, because rinsing with water is more effective in removing bubbles than with hot water. A predetermined time (about 30 seconds to 120 seconds in the first embodiment)
After repeating the circulation and rinsing the inside of the bathtub 1, the three-way valve 11 is switched to the drain pipe 12 to drain water, and water is supplied from the water supply unit 13 into the bathtub 1 again to perform the same rinsing operation. Then, the washing in the bathtub 1 is completed.

With the above configuration, in the bath tub cleaning device according to the first embodiment, since the bottom surface of the bath tub is formed at an elevation angle of 1.5 ° to 2 ° from the upper edge of the pool, the flow rate of the drainage water is reduced. The drainage can be done faster and the hair and dust in the remaining hot water can be removed when draining the remaining hot water, and the washing water quickly flows into the hot water pool. The washing water can be circulated to wash the bathtub. In addition, since the filter is provided on the suction side of the pump, the pump is prevented from sucking scale or dust and has an effect of preventing seizure of the pump. In addition, since the washing water can be heated and kept warm by the heating means, the washing can be performed without lowering the temperature of the washing water during the washing, and the oil and the like in the bathtub can be easily removed and the washing effect can be improved.

Next, the bathtub washer 4 in the first embodiment will be described with reference to FIGS. FIG. 3 is a cross-sectional view when the bathtub washer according to the first embodiment is used, FIG. 4 is a cross-sectional view when the bathtub washer according to the first embodiment is stored, and FIG. FIG. 6 is a cross-sectional view of A, and FIG. Note that the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted. 3 to 6, reference numeral 19 denotes a side wall of the bathtub 1, 19a denotes an inner wall surface of the bathtub 1, 19b denotes an outer wall surface of the bathtub 1, and 20 denotes a side wall 1 of the bathtub 1.
9 is a cylindrical housing attached to 9, 20 a is a stopper formed on the side wall 19 side of the housing 20, 21 is a fixed part for attaching the housing 20 to the bathtub 1, 22 is slidably attached inside the housing 20. Straight cylindrical part,
22a is a flange formed on the straight cylindrical portion 22, 23
Is a convex portion formed at the tip of the rectilinear cylindrical portion 22;
A sliding guide for sliding the rectilinear cylindrical portion 22 within 0; a rotating cylindrical portion 25 rotatably disposed in the rectilinear cylindrical portion 22;
25a is a pressure receiving portion of the rotary cylindrical portion 25, 26 is a rotary cylindrical portion 2
5, a nozzle portion protruding from the convex portion 23 of the rectilinear cylindrical portion 22, a nozzle portion 27 rotatably disposed orthogonal to the axis of the cylindrical portion 26, and a cylindrical portion 26. A supporting cylindrical portion rotatably supporting the nozzle portion 27 on the
Is formed in the nozzle portion 27, and the convex portion 2 of the rectilinear cylindrical portion 22 is formed.
3, a nozzle hole for spraying water or the like, 31 is an angular rotary drive shaft that rotates with the output shaft of the motor 5, 32 is formed on a pressure receiving portion 25a of the rotary cylindrical portion 25, A circular receiving plate for rotating the rotary cylindrical portion 25 via the shaft 31; a bearing 33 for sliding the rotary drive shaft 31 and rotating the receiving plate 32 via the rotary drive shaft 31; 6 is a water supply port formed in the housing 20.

Hereinafter, the operation of the bathtub washer 4 in the first embodiment will be described. After the activation of the bathtub cleaning device, the housing 2 is supplied from the water supply unit 13 to the water supply port 34 of the bathtub cleaning device 4 housed in the side wall 19 of the bathtub 1 as shown in FIG.
Water or hot water is supplied into the chamber 0, and driving of the motor 5 of the bathtub washer 4 is started. The receiving plate 32 is pressed by the pressure of water or hot water supplied from the water supply port 34 into the housing 20.
Is pressed toward the bathtub 1 side, and the rotating cylindrical portion 25 is
2 together with the stopper portion 20a until the flange portion 22a comes into contact with the stopper portion 20a, and the nozzle portion 27 projects from the inner wall surface 19a of the bathtub 1 as shown in FIG. Since the rotation of the rectilinear cylindrical portion 22 is prevented by the sliding guide 24, only the rotary cylindrical portion 25 is rotated by the motor 5 via the rotary drive shaft 31. In addition, with the rotation of the rotary cylindrical portion 25, the nozzle portion 27 rotates around the axis of the rotary cylindrical portion 25, and further with the rotation of the nozzle portion 27, as shown in FIG. The engaged portion 29 meshes with the convex portion 23 formed at the tip of the rectilinear cylindrical portion 22, and the nozzle portion 27 rotates around the shaft supporting cylindrical portion 28. Water or the like supplied into the housing 20 from the water supply port 34 flows into the rotating cylindrical portion 25, and is jetted from the tip cylindrical portion 26 through the nozzle hole 30 of the nozzle portion 27 via the shaft supporting cylindrical portion 28, and the bathtub 1 Clean the inner wall of the. After washing in the bathtub 1,
By pushing the nozzle portion 27 toward the outer wall surface 19b, the rectilinear cylindrical portion 22 slides along the slide guide 24, and the nozzle portion 27 is housed in the housing 20.

As described above, in the bathtub washer according to the first embodiment, the nozzle portion protrudes from the inner wall surface of the bathtub due to the pressure of water or hot water supplied into the housing of the bathtub at the start of bathtub cleaning. With a simple structure, the nozzle portion can be automatically projected at the start of cleaning. Also,
At the time of washing in the bathtub, the nozzle rotates around the axis of the rotating cylindrical portion and also rotates around the shaft supporting cylindrical portion. It has the effect of being able to be washed. Further, after the washing in the bathtub is completed, the nozzle portion is pushed toward the outer wall surface of the bathtub, so that the nozzle portion can be stored without protruding from the inner wall surface of the bathtub.

(Embodiment 2) Hereinafter, a bathtub cleaning apparatus provided with a sensor for detecting opening and closing of a bathtub lid according to the present invention will be described. FIG. 7 is an overall system diagram of the bathtub cleaning apparatus according to the second embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and the description is omitted. 7, reference numeral 35 denotes an optical sensor disposed on the side wall of the bathtub 1 for detecting opening and closing of a lid of the bathtub 1; 36, a control unit for controlling the bathtub cleaner 4 and the pump 8 based on an output signal of the optical sensor 35; 3
Reference numeral 7 denotes a drainage / circulation port formed on the bottom surface of the pool
8 is a three-way valve disposed between the drain / circulation port 37 and the filter 9. The cleaning operation of the bathtub 1 according to the second embodiment includes:
This is almost the same as the first embodiment. The second embodiment is different from the first embodiment in that an optical sensor 35 for detecting opening and closing of a lid of the bathtub 1 and a control unit 36 for controlling the bathtub cleaner 4 and the pump 8 based on an output signal of the optical sensor 35. And a drain / circulation port 37 into which water or the like flows during drainage and circulation of the water and the like in the bathtub 1.
And a three-way valve 38 disposed between the drain / circulation port 37 and the filter 9. In the bathtub cleaning apparatus of the second embodiment, when draining the remaining hot water in the bathtub 1 after the end of bathing or the like, the three-way valve 38 switches to the drain pipe 12 side, and the remaining hot water in the bathtub 1 is discharged from the drain pipe 12. Drained. After draining the remaining hot water, the three-way valve 38 switches to the suction pipe 7 side,
The inside of the bathtub 1 is cleaned in the same manner as in the first embodiment. Also, when draining water or the like in the bathtub 1 during washing, the three-way valve 38 switches to the drain pipe 12 side and drains from the drain pipe 12.

Next, the optical sensor 35 will be described. The optical sensor 35 disposed on the side wall of the bathtub 1 uses a cadmium sulfide cell, and detects opening and closing of the lid 16 of the bathtub 1 based on the illuminance in the bathtub 1. Before the washing in the bathtub 1 is started, the lid 16 of the bathtub 1 is closed, the light in the bathtub 1 is shut off, the light sensor 35 detects low illuminance, and while the light sensor 35 detects low illuminance, The cleaning operation inside the bathtub 1 is performed. When the lid 16 is opened while cleaning the inside of the bathtub 1, light is irradiated into the bathtub 1, the optical sensor 35 detects high illuminance, and the control unit 36 connected to the optical sensor 35 stops the cleaning operation. The signals a and b are sent to the pump 8 and the bathtub washer 4, and the washing operation is stopped.

As described above, the drain / circulation port is formed on the bottom surface of the hot water pool, and the three-way valve is provided between the drain / circulation port and the pump, so that the water in the bathtub and the water during washing of the bathtub are removed. Has the effect of being able to circulate. Also, since the opening of the lid is detected by the optical sensor and the cleaning operation is stopped by the control unit, when the lid is accidentally opened during the cleaning of the bathtub, the heated cleaning sprayed from the bathtub cleaning device. It has the effect of preventing water from scattering outside the bathtub and preventing accidents such as burns.

[0023]

As described above, the bathtub cleaning apparatus of the present invention has the following excellent effects. The bathtub cleaning device according to claim 1, wherein (1) the inside of the bathtub can be cleaned while circulating a water or the like supplied from the bathtub cleaning device to a hot water pool formed on the bottom surface of the bathtub by a pump. This has the effect that the inside of the bathtub can be washed with water and the inside of the bathtub can be economically washed. (2) Since there is no need for a tank for storing water for bathtub cleaning, the structure of the bathtub cleaning device can be simplified, the productivity is excellent, and the size and cost can be reduced. (3) Since the heating means is disposed between the pump and the water supply pipe, the circulating washing water can be heated and kept warm, the oil content in the bathtub can be easily removed, and the washing effect can be improved. Have. 3. The bathtub cleaning apparatus according to claim 2, further comprising: (4) an elevation angle of 1 ° to 4 °, preferably 1.5 ° to 2 ° from the upper edge of the water pool part formed in a concave shape on the bottom surface of the bathtub. Because the bottom of the bathtub is formed, when draining the remaining hot water in the bathtub, hair and dust etc. can be discharged and removed at the same time without leaving the bottom of the bathtub, and water etc. quickly flows into the pool. In addition, the bathtub can be cleaned with a small amount of water, and the inside of the bathtub can be economically cleaned, and the cleaning efficiency can be improved. 4. The bathtub cleaning apparatus according to claim 3, further comprising: (5) the nozzle portion of the bathtub cleaning device automatically protrudes from the inner wall surface of the bathtub by the pressure of water or hot water supplied to the bathtub cleaning device during cleaning of the bathtub. This has the effect that the operability of the bathtub cleaning device is excellent. (6) At the time of washing the bathtub, the nozzle portion rotates about the axis of the rotating cylindrical portion of the bathtub washer, and the convex portion formed at the tip of the rectilinear cylindrical portion of the bathtub washer engages with the nozzle portion. The nozzle section rotates by meshing with the section, and water and the like can be uniformly sprayed into the bathtub, so that the inside of the bathtub can be surely cleaned and the cleaning effect can be improved. (7) After washing the bathtub, the nozzle part can be stored without protruding from the inner wall surface of the bathtub by pushing the nozzle part to the outer wall surface side of the bathtub, preventing it from being disturbed at the time of bathing, and at the time of bathing etc. There is an effect that it is possible to prevent the nozzle portion from being damaged by putting a hand on the nozzle portion or the like and to improve the durability of the bathtub washer. The bathtub cleaning apparatus according to claim 4, further comprising: (8) by switching the three-way valve, drainage of water and the like in the bathtub and circulation of water and the like at the time of washing the bathtub can be performed at the drainage / circulation port. The structure of the bottom surface of the water pool on the bottom surface can be simplified, the bathtub can be easily manufactured, and the productivity is excellent. The bathtub cleaning device according to claim 5, further comprising: (9) a filter for filtering scales and dusts is provided between the circulation port and the pump, thereby preventing the pumps from sucking scales and dusts. In addition, the present invention has the effect of preventing seizure of the pump due to scale, dust and the like, and of having excellent pump durability. The bathtub cleaning apparatus according to claim 6, further comprising: (10) a sensor for detecting opening and closing of a lid of the bathtub, and a control unit for controlling a cleaning operation of the bathtub, so that a cleaning operation in the bathtub is performed. When the lid is accidentally opened inside, the washing operation in the bathtub can be stopped, heated washing water etc. can be prevented from scattering outside the bathtub, and accidents such as burns due to heated washing water can be prevented, This has the effect that the user can use it with confidence.

[Brief description of the drawings]

FIG. 1 is an overall system diagram of a bathtub cleaning apparatus according to a first embodiment.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a cross-sectional view when the bathtub washer according to the first embodiment is used.

FIG. 4 is a cross-sectional view when the bathtub washer according to the first embodiment is stored.

FIG. 5 is a sectional view taken along line AA of FIG. 3;

FIG. 6 is a top view of a main part of a nozzle unit.

FIG. 7 is an overall system diagram of a bathtub cleaning apparatus according to Embodiment 2.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Hot water pool part 3 Circulation port 4 Bathtub cleaner 4a Nozzle 5 Motor 6 Water supply pipe 7 Water absorption pipe 8 Pump 9 Filter 10 Heating means 11 Three-way valve 12 Drain pipe 13 Water supply section 14 Flow sensor 15 Open / close valve 16 Lid 17 Drain port DESCRIPTION OF SYMBOLS 18 Drain plug 19 Side wall 19a Inner wall surface 19b Outer wall surface 20 Housing 20a Stop part 21 Fixed part 22 Straight cylindrical part 22a Flange part 23 Convex part 24 Sliding guide 25 Rotating cylindrical part 25a Pressure receiving part 26 Tip cylindrical part 27 Nozzle part 28 Shaft Supporting cylinder part 29 Engagement part 30 Nozzle hole 31 Rotation drive shaft 32 Receiving plate 33 Bearing part 34 Water supply port 35 Optical sensor 36 Control part 37 Drainage / circulation port 38 Three-way valve

Claims (6)

[Claims] 1. A bathtub, a water pool formed in a concave shape on a bottom surface of the bathtub, a drain port and a circulation port formed on a bottom surface of the water pool portion, and a bathtub disposed on a side wall of the bathtub. A washing machine, a water supply pipe connected to the bathtub cleaner, a water supply part connected to the water supply pipe, a water absorption pipe connected to the circulation port, and a water absorption pipe connected to the water absorption pipe, inside the water pool part. A pump for absorbing hot water or the like, a heating means provided between the pump and the water supply pipe, and a three-way valve provided between the heating means and the pump. Bathtub cleaning equipment. 2. The bathtub according to claim 1, wherein a bottom surface of the bathtub is formed at an elevation angle of 1 ° to 4 °, preferably 1.5 ° to 2 ° from an upper edge of the pool. The bathtub cleaning device as described. 3. The bathtub washer includes a cylindrical housing formed from an inner wall surface of the bathtub to the outside of the bathtub, a sliding guide formed on an inner wall of the housing, and an axial direction of the housing. A rectilinear cylindrical portion slidable along the sliding guide, a convex portion formed at a tip of the rectilinear cylindrical portion, a rotating cylindrical portion rotatably disposed in the rectilinear cylindrical portion, A driving part for rotating the cylindrical part, a water supply port provided on the driving part side of the housing, a tip cylindrical part communicating with the rotating cylindrical part and protruding from the convex part, and the tip 2. The nozzle according to claim 1, further comprising: a nozzle portion orthogonal to the axis of the cylindrical portion and rotatably disposed; and a meshing portion meshing with the convex portion formed on the nozzle portion. 3. 3. The bathtub cleaning apparatus according to any one of 2. 4. A drain / circulation port which is formed in a concave shape on the bottom surface of the pool and is connected to the water absorption pipe, and a drain which communicates with the drain / circulation port, instead of the drain port and the circulation port. 2. The apparatus according to claim 1, further comprising a pipe, and a three-way valve disposed between the drain / circulation port and the pump.
The bathtub cleaning apparatus according to any one of Items 1 to 3. 5. The filter according to claim 1, further comprising a filter between the circulation port or the drain / circulation port and the pump for filtering descaling, dust and the like. Bath tub cleaning equipment. 6. A side wall of the bathtub, comprising: a sensor such as an optical sensor for detecting opening / closing of a lid of the bathtub; and a control unit for controlling a washing operation of the bathtub based on an output signal of the sensor. The bathtub cleaning device according to any one of claims 1 to 5, wherein