JP2021074267A - Bathtub cleaning nozzle device and bathtub apparatus equipped with the same - Google Patents

Abstract

To provide a bathtub cleaning nozzle device which, in the event that at least a part of a seal member is laid on top of the irregular shape of the bottom of a bathtub, can prevent leak of water from inside of the bathtub into a space on the rear side of the bottom of the bathtub and can be installed on the bottom of the bathtub having the irregular shape.SOLUTION: The bathtub cleaning nozzle device of the present invention comprises a seal member 56 having a U-shaped cross section opening outward. The underside of a first flange part 50b is in contact with the top face of a first part 80, in a manner that a seal is formed between the underside of the first flange part 50b and the top face of the first part 80 which, of the seal member, is situated on the front side of the bottom. The top face of a second flange part is in contact with the underside of a second part 82 in a manner that a seal is formed between the top face of the second part 82 which, of the seal member 56, is situated on the rear face side of the bottom and the underside of the bottom 2.SELECTED DRAWING: Figure 4

Description

The present invention relates to a bathtub cleaning nozzle device and a bathtub device provided with a bathtub cleaning nozzle device, and in particular, a bathtub cleaning nozzle device and a bathtub attached to a hole provided at the bottom of a bathtub having a non-slip uneven shape. The present invention relates to a bathtub device equipped with a washing nozzle device.

Conventionally, as shown in Patent Document 1, a bathtub cleaning device fixed to the bottom surface of a bathtub has been known. In this bathtub cleaning device, at the time of cleaning, the nozzle rotates together with the rotating body while injecting cleaning water onto the inner surface of the bathtub. Such nozzles are arranged to close the holes in the bottom of the bathtub and are connected to the holes, and the space between such nozzles and the bathtub is watertightly sealed.

Japanese Unexamined Patent Publication No. 5-49589

On the other hand, in recent years, there are cases where a non-slip uneven shape is provided on the bottom of the bathtub so that the user does not slip and fall.
However, in the bathtub cleaning nozzle device as shown in Patent Document 1, when the concave-convex shape is to be provided on the bottom of the bathtub, the device main body is attached so as to overlap the concave-convex shape. At this time, the upper part of the main body of the device is attached so as to overlap the uneven shape, and water infiltrates through the gap between the stepped portion between the uneven shape and the non-concave part, and the space between the uneven shape and the bottom of the bathtub is sufficient. There was a problem that it could not be sealed.

On the other hand, when the bottom of the bathtub is formed so as not to have a non-slip uneven shape in the vicinity of the bathtub cleaning nozzle device, there is a problem that the anti-slip function of the bottom of the bathtub is deteriorated.

Therefore, the present invention solves the above-mentioned problems of the prior art, and when at least a part of the sealing member overlaps the uneven shape of the bottom of the bathtub, the space from the inside of the bathtub to the back side of the bottom of the bathtub. It is an object of the present invention to provide a bathtub cleaning nozzle device capable of preventing leakage to a bathtub and attaching a bathtub cleaning nozzle device to the bottom of a bathtub having an uneven shape.

In order to achieve the above-mentioned object, the present invention is formed so as to be inserted into the hole portion, and the injection port portion for injecting detergent water toward the inner wall surface of the tub and the bottom portion of the tub. A cleaning nozzle main body including a first flange portion extending along the surface, a second flange portion attached to the cleaning nozzle main body and extending along the back surface of the bottom of the bathtub, and a sealing member. The seal member has a U-shaped cross section that opens outward and is formed in an annular shape, and includes the seal member that is attached to the inner peripheral edge of the hole portion, and at least a part of the seal member. Is arranged so as to overlap the uneven shape in the top view, and the lower surface of the first flange portion is a first portion in which the lower surface of the first flange portion is located on the surface side of the bottom portion of the sealing member. The upper surface of the second flange portion is in contact with the upper surface of the first portion so as to form a seal with the upper surface of the seal member, and the upper surface of the second flange portion is a second portion of the seal member located on the back surface side of the bottom portion. It is characterized in that the upper surface is in contact with the lower surface of the second portion so as to form a seal with the back surface of the bottom portion.
In the present invention configured as described above, when at least a part of the sealing member overlaps the uneven shape of the bottom of the bathtub, the lower surface of the first flange portion seals with the upper surface of the first portion of the sealing member. It is possible to prevent water from leaking from the upper surface side of the first portion of the sealing member to the space on the back surface side of the bottom portion of the bathtub. Further, even if water infiltrates through the gap between the lower surface of the first portion of the sealing member and the uneven shape of the bottom of the bathtub, the upper surface of the second portion of the sealing member seals with the back surface of the bottom of the bathtub. To form. Therefore, it is possible to prevent water from leaking from the upper surface side of the second portion of the sealing member to the space on the back surface side of the bottom portion of the bathtub. Therefore, when at least a part of the sealing member overlaps the uneven shape of the bottom of the bathtub, it is possible to prevent water from leaking from the inside of the bathtub to the space on the back surface side of the bottom of the bathtub, and the bottom of the bathtub having the uneven shape. A bathtub cleaning nozzle device can be attached to the bathtub cleaning nozzle device.

In the present invention, preferably, the upper surface of the first portion of the seal member includes a first convex portion formed in an annular shape over the entire circumference, and the upper surface of the second portion of the seal member is the entire circumference. It is provided with a second convex portion formed in an annular shape over the entire surface.
In the present invention configured as described above, when at least a part of the sealing member overlaps the uneven shape of the bottom of the bathtub, the upper surface of the first portion of the sealing member is formed in an annular shape over the entire circumference. Since the convex portion is provided, even if the shape of the lower surface of the first flange portion or the upper surface of the sealing member changes from the original plan due to manufacturing error, stress, etc., the position of the first convex portion is intended. A seal can be reliably formed. Therefore, the lower surface of the first flange portion more reliably forms a seal with the upper surface of the first portion of the sealing member, and water flows from the upper surface side of the first portion of the sealing member to the back surface side of the bottom portion of the bathtub. It is possible to more reliably prevent leakage to. Further, since the upper surface of the second portion of the seal member includes a second convex portion formed in an annular shape over the entire circumference, the shape of the upper surface of the second portion of the seal member or the back surface of the bottom of the bathtub may cause a manufacturing error. Even if the change is made from the initial plan due to stress or the like, the seal can be formed more reliably at the intended location of the second convex portion. Therefore, even if water infiltrates through the gap between the lower surface of the first portion of the sealing member and the uneven shape of the bottom of the bathtub, the upper surface of the second portion of the sealing member having a U-shaped cross section is the bottom of the bathtub. Form a seal more reliably with the back surface of the. Therefore, it is possible to more reliably prevent water from leaking from the upper surface side of the second portion of the sealing member to the space on the back surface side of the bottom portion of the bathtub. Therefore, when at least a part of the sealing member overlaps the uneven shape of the bottom of the bathtub, it is possible to more reliably prevent water from leaking from the inside of the bathtub to the space on the back surface side of the bottom of the bathtub.

In the present invention, preferably, the cleaning nozzle main body includes a nozzle main body including the injection port portion and a rotation mechanism for rotating the nozzle main body.
In the present invention configured as described above, since the cleaning nozzle main body further includes a rotation mechanism for rotating the nozzle body, the outer diameter of the cleaning nozzle main body is formed to be relatively large, and the outer diameter of the annular seal member is formed. The diameter is relatively large. As a result, there is a high possibility that at least a part of the sealing member overlaps the uneven shape of the bottom of the bathtub, and it becomes relatively difficult to arrange the sealing member while avoiding the uneven shape. As described above, even when the cleaning nozzle main body is provided with a rotation mechanism, the bathtub cleaning nozzle device can be attached to the bottom of the bathtub having an uneven shape.

In the present invention, a bathtub device preferably includes the bathtub having the uneven shape formed on the bottom portion and the bathtub cleaning nozzle device.
In the present invention configured as described above, in a bathtub device having a bathtub having an uneven shape formed on the bottom portion and a bathtub cleaning nozzle device attached to the bathtub, at least a part of a sealing member is a bottom portion of the bathtub. It is possible to prevent water from leaking from the inside of the bathtub to the space on the back surface side of the bottom of the bathtub when it overlaps with the uneven shape of the bathtub.

According to the bathtub cleaning nozzle device of the present invention, when at least a part of the sealing member overlaps the uneven shape of the bottom of the bathtub, it is possible to prevent water from leaking from the inside of the bathtub to the space on the back surface side of the bottom of the bathtub. The bathtub cleaning nozzle device can be attached to the bottom having an uneven shape.

It is a top view of the bathtub cleaning nozzle device according to one embodiment of the present invention and the bathtub device to which this bathtub cleaning nozzle device is applied. It is an overall block diagram which shows the bathtub cleaning nozzle apparatus by one Embodiment of this invention, and the bathtub apparatus to which this bathtub cleaning nozzle apparatus is applied. It is a top view of the state in which the bathtub cleaning nozzle device according to this embodiment is attached to the bottom surface of the bathtub. It is sectional drawing of the bathtub washing nozzle device seen along the IV-IV line of FIG. FIG. 4 is an enlarged cross-sectional view showing an enlarged portion of the vicinity of the packing indicated by V in FIG. FIG. 3 is an enlarged cross-sectional view showing an enlarged state in which the packing is not arranged so as to overlap the non-slip uneven shape in the vicinity of the packing as seen along the VI-VI line of FIG. It is a top view of the packing of FIG. It is sectional drawing seen along the line VIII-VIII of FIG.

A bathtub device according to an embodiment of the present invention will be described with reference to the drawings. First, the bathtub cleaning nozzle device according to the embodiment of the present invention and the bathtub device to which the bathtub cleaning nozzle device is applied will be described with reference to FIGS. 1 and 2. FIG. 1 is a plan view of a bathtub cleaning nozzle device according to an embodiment of the present invention and a bathtub device to which the bathtub cleaning nozzle device is applied as viewed from above, and FIG. 2 is a bathtub cleaning nozzle device according to an embodiment of the present invention. It is an overall block diagram which shows the bathtub apparatus to which this bathtub washing nozzle apparatus is applied.

As shown in FIG. 1, reference numeral 1 indicates a bathtub device, and the bathtub device 1 includes a bathtub 3 and a bathtub cleaning device 10 for cleaning the bathtub 3 with detergent water. The bathtub 3 includes a bottom portion 2 and an inner wall surface 4, and the bottom portion 2 and the inner wall surface 4 are washed with detergent water as described later, and further rinsed with hot water or water (hereinafter referred to as water). It has become so. The bottom 2 of the bathtub 3 is formed with a concave-convex shape 5 having a non-slip function that prevents the user of the bathtub 3 from slipping in the bathtub 3. A plurality of non-slip uneven shapes 5 are formed in the bathtub 3. The convex portion 5a of the non-slip uneven shape 5 (see FIG. 1) is formed in a trapezoidal shape that is one step higher than the bottom surface of the bottom portion 2. The concave portion 5b of the non-slip uneven shape 5 is formed by the bottom surface between one convex portion 5a and another convex portion 5a. The convex portion 5a of the non-slip uneven shape 5 is formed in a range of about 0.1 mm to about 2 mm from the bottom surface, for example, at a height of 0.5 mm. The convex portion 5a of the non-slip uneven shape 5 forms an oval shape by two parallel lines of equal length and two semicircles, like a track of a so-called athletics stadium, when viewed from above. The convex portion 5a has a relatively rough surface at the top that enhances the frictional force. The non-slip uneven shape 5 is not limited to the one in which the convex portion as described above is formed, the one in which the circular convex portion is formed on the bottom surface, the one in which the linear convex portion is formed, and the like. Those with convex parts of other shapes, those with unevenness processing such as increased surface roughness on the bottom surface, those with uneven shape formed by forming a concave shape on the bottom surface, etc. , It suffices if a portion formed so as to change from flat is formed on the bottom surface.
A water supply port 6 is provided on the inner wall surface 4 of the bathtub 3, so that hot water is supplied into the bathtub 3. A drainage port 8 is provided at the bottom 2 of the bathtub 3 so that hot water can be drained to the outside.
The term "hot water or water" used in the present application includes, for example, temperature-controlled hot water in a water heater (not shown), hot water in which hot water and water are mixed, slightly warmed hot water, and room temperature. Water, cold water, etc. are also included.

As shown in FIGS. 1 and 2, a bathtub cleaning device 10 for automatically cleaning the bathtub 3 by supplying detergent water described later to the bathtub 3 will be described. The bathtub cleaning device 10 includes a bathtub cleaning nozzle device 12 provided on the bottom 2 of the bathtub 3 in which a non-slip uneven shape 5 is formed. The bathtub cleaning nozzle device 12 is attached to a hole 3a provided in the bottom portion 2 of the bathtub 3.

As shown in FIG. 2, the bathtub cleaning device 10 includes three flow paths for supplying detergent water to the bathtub cleaning nozzle device 12. First, the first flow path 20 is a flow path for supplying water from a water supply source such as a water heater (not shown), and the first flow path 20 is a water stop with a filter from the upstream. A tap 22, a constant flow valve 24, a water supply solenoid valve 26 that controls the amount of water supplied by opening and closing operations, a temperature sensor 28, and a detergent mixing tank that is an edge cutting tank for mixing detergent and water to generate and store detergent water. The system turn 30 is provided.

The second flow path 32 is a flow path for supplying liquid detergent, and the second flow path 32 includes a detergent tank 34, a detergent electromagnetic valve 36 for controlling the supply of detergent, and an orifice 38 from the upstream. , And a detergent pump 40, which is a pump for controlling the supply amount of the detergent, is provided so that the detergent is supplied to the above-mentioned system turn 30. The detergent tank 34 is configured to store detergent. The detergent tank 34 is configured so that the user can replenish the detergent.

The cistern 30 includes a float switch 31 for detecting the water level of the detergent water in the cisturn 30. The water level of the detergent water in the cisturn 30 changes from a predetermined lower position to a predetermined full water level W0. The float switch 31 can move up and down according to the water level of the washing water, and can detect the full water level W0 of the detergent water.

Further, an overflow pipe 86 is attached at a position further above the float switch 31 of the detergent water tank 79. The overflow pipe 86 allows the detergent water to be discharged to the outside of the casing 66 when the detergent water in the detergent water tank 79 exceeds the above-mentioned full water level W0.

Further, as described above, the amount of hot water supplied to the sistern 30 can be controlled by the opening / closing operation of the water supply solenoid valve 26 provided in the first flow path 20. Further, by controlling the discharge flow rate of the detergent pump 40 provided in the second flow path 32, the amount of detergent supplied to the sistern 30 can be controlled. Further, by controlling the cleaning pump 44 provided in the third flow path 42, the amount of cleaning water supplied from the inside of the cisturn 30 to the nozzle body 14 can be controlled.

In the systurn 30, the water supply solenoid valve 26, the detergent solenoid valve 36, the detergent pump 40, and the like are controlled by the signal from the float switch 31 described above to generate a desired amount of detergent water. Further, as will be described in detail later, the control unit 48 controls the discharge flow rate and drive time of the detergent pump 40, the valve opening time of the water supply solenoid valve 26, and the like to control the concentration of detergent water in the systurn 30. It can be changed to obtain the desired concentration of detergent water.

The third flow path 42 is a flow path for supplying (supplying) the detergent water stored in the systurn 30 to the bathtub cleaning nozzle device 12 described above. A cleaning pump 44 and a check valve 46 are provided in the third flow path 42 from the upstream. The cleaning pump 44 is a pump and supplies the detergent water generated in the systurn 30 to the bathtub cleaning nozzle device 12. The cleaning pump 44 can control (adjust) the flow rate of the detergent water supplied to the bathtub cleaning nozzle device 12, that is, the flow rate of the detergent water injected from the nozzle body 14 described later. The cleaning pump 44 is, for example, a diaphragm pump, but may be another pump having a function of delivering water.

In the present embodiment, the detergent and water are mixed in the cistern 30 to generate the detergent water, but as a modification, a venturi-type detergent mixing portion is provided instead of the cisturn 30 to generate the detergent water. May be good. In the Venturi-type detergent mixing section, the negative pressure generated when the water supplied from the water supply source passes through the detergent mixing section draws the detergent on the second flow path 32 side into the detergent mixing section, and the detergent and water are combined. To produce detergent water.

Further, the bathtub cleaning device 10 includes a control unit 48. The control unit 48 is electrically connected to, for example, an electric motor 18, a water supply solenoid valve 26, a temperature sensor 28, a float switch 31, a detergent solenoid valve 36, a detergent pump 40, a cleaning pump 44, and the like. The control unit 48 controls the opening / closing operation of the water supply solenoid valve 26, and the opening / closing operation of the water supply solenoid valve 26 provided in the first flow path 20 enables control of the amount of water supplied to the systurn 30. There is. Further, the control unit 48 controls the discharge flow rate of the detergent pump 40 provided in the second flow path 32, so that the amount of detergent supplied to the sistern 30 can be controlled. Further, the control unit 48 controls the cleaning pump 44 provided in the third flow path 42, so that the amount of detergent water supplied to the nozzle body 14 in the cisturn 30 can be controlled.
In the above-mentioned example, water (hot water) is supplied to the first flow path 20 from the water heater, but water at room temperature or cold water may be supplied without using the water heater.

Next, the structure of the bathtub cleaning nozzle device 12 of the bathtub cleaning device 10 of the present embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a plan view of the bathtub cleaning nozzle device according to the present embodiment attached to the bottom surface of the bathtub as viewed from above, and FIG. 4 is a plan view of the bathtub cleaning nozzle device as viewed along the IV-IV line of FIG. It is a sectional view.

As shown in FIG. 4, the bathtub cleaning nozzle device 12 rotates the nozzle main body 14, the main body casing 16 for supporting the nozzle main body 14, the mounting unit 17 attached to the bottom 2, and the nozzle main body 14. The electric motor (stepping motor, etc.) 18 and the cover 64 are provided. In the present embodiment, at least the nozzle main body 14, the main body casing 16, and the electric motor 18 constitute the main body of the bathtub cleaning nozzle device 12. The nozzle main body 14, the main body casing 16, and the electric motor 18 are formed so as to be inserted into the hole portion 3a as the main body portion. In the present embodiment, the nozzle main body 14, the main body casing 16, the electric motor 18, and the first flange member 50 described later constitute a cleaning nozzle main body portion of the bathtub cleaning nozzle device 12. The cleaning nozzle main body includes at least an injection port 62 and a first flange member 50. The first flange member 50 may be formed integrally with the main body portion.

The bathtub cleaning nozzle device 12 is configured as a main body separation structure that facilitates maintenance of the main body portion by separating the main body portion from the mounting unit 17. In this structure, the main body forms a seal structure independent of the bottom seal at a position different from the packing 56 that forms the seal with the bottom of the bathtub 3. This seal structure is formed by a seal ring 51 as described later. Since the main body is not in contact with the packing 56, the seal of the packing 56 can be stabilized and the reliability of the seal can be improved.

The nozzle body 14 includes an injection port portion 62 that injects detergent water or water obliquely upward toward the inner wall surface 4 of the bathtub 3. The outer circumference of the nozzle body 14 is formed in a circular shape.

The main body casing 16 includes an intermediate cylinder 52 formed in a tubular shape so as to be fitted with a first flange member 50 forming an outer cylinder, which will be described later, and an inner cylinder 54 attached to an upper portion and inside of the intermediate cylinder 52. And a tubular support member 60 for supporting the nozzle body 14. A seal ring 51 is arranged between the intermediate cylinder 52 and the first flange member 50. The seal ring 51 can prevent water in the bathtub 3 from entering (leaking) into the space behind the bathtub from between the intermediate cylinder 52 and the first flange member 50. The inner cylinder 54 rotatably stores the nozzle body 14 inside the inner cylinder 54.

The electric motor 18 is attached to the lower portion and the inner side of the intermediate cylinder 52. The electric motor 18 rotates the nozzle body 14. An output shaft 18a is attached to the electric motor 18, and a nozzle body 14 is attached to the tip (upper end) of the output shaft 18a. For example, the inner cylinder 54 and the electric motor 18 form a rotation mechanism for rotating the nozzle body 14. Therefore, the cleaning nozzle main body includes a nozzle main body 14 and a rotation mechanism for rotating the nozzle main body 14.

Further, the tubular support member 60 is attached to the lower portion of the inner cylinder 54. Further, a flow path member 61 is attached to the lower portion of the intermediate cylinder 52 to form a flow path 61a through which a liquid (detergent water or water) flows. Further, a flow path 60a is formed between the support member 60 and the intermediate cylinder 52, and a flow path 14a is also formed inside the nozzle body 14.

The liquid (detergent water or water) supplied from the third flow path 42 described above to the bathtub cleaning nozzle device 12 is the flow path 61a of the flow path member 61, and the flow path 60a between the support member 60 and the intermediate cylinder 52. The nozzle body 14 reaches the injection port portion 62 formed on the upper portion of the nozzle body 14 through the flow path 14a inside the nozzle body 14.

The cover 64 is arranged inside the bottom 2 of the bathtub 3. The cover 64 is formed so as to cover above the nozzle main body 14, the main body casing 16, and the mounting unit 17. The bathtub cleaning nozzle device 12 does not have to be provided with a cover.

Next, the structure of the mounting unit 17 will be described with reference to FIGS. 4 to 8. FIG. 4 is a cross-sectional view of the bathtub cleaning nozzle device viewed along the IV-IV line of FIG. 3, and FIG. 5 is an enlarged cross-sectional view showing an enlarged portion of the vicinity of the packing indicated by V in FIG. 6 is an enlarged cross-sectional view showing an enlarged state in which the packing is not arranged so as to overlap the non-slip uneven shape in the vicinity of the packing as seen along the VI-VI line of FIG. 3. FIG. It is a top view of the packing of FIG. 4, and FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG.

The mounting unit 17 is formed so as to be mounted on the bottom portion 2, and is configured to removably accept the main body portions such as the nozzle main body 14, the main body casing 16, and the electric motor 18 inside.
The mounting unit 17 includes a tubular first flange member 50, a packing 56 which is a sealing member, and a second flange member 58 which is formed in an annular shape and screw-engages with the outer surface of the first flange member 50. There is.

The first flange member 50 includes a tubular portion 50a forming a tubular portion extending in the vertical direction, and a first flange portion 50b extending horizontally outward from the upper portion of the tubular portion 50a in a brim shape. The tubular portion 50a and the first flange portion 50b are formed as one seamless component. The first flange member 50 is attached to the bottom portion 2 of the bathtub 3 via the packing 56, and is fixed to the bottom portion 2 by the second flange member 58. The first flange portion 50b extends in a direction (laterally) along the surface 2a so as to be along the surface 2a of the bottom portion 2 of the bathtub 3.
The second flange member 58 is a fixing nut that is screwed with the outer surface of the tubular portion 50a. The second flange member 58 includes a second flange portion 58a extending in a direction (laterally) along the back surface 2b so as to be along the back surface 2b of the bottom portion 2 of the bathtub 3 at the upper portion thereof. The second flange member 58 is attached to the cleaning nozzle main body.

As shown in FIGS. 5 to 8, the packing 56 is formed in an annular shape and has a U-shaped cross section that opens outward. The packing 56 is attached so as to cover the inner peripheral edge forming the hole portion 3a of the bottom portion 2. The outward U-shape of the packing 56 fits with the inner peripheral edge of the hole 3a of the bottom 2. The packing 56 is formed of an elastic member such as rubber.

Further, the upper surface 80a of the first portion 80 of the packing 56 located on the surface side of the bottom portion 2 of the bathtub 3 includes a first convex portion 80c formed in an annular shape over the entire circumference. The upper surface 82a of the second portion 82 of the packing 56 located on the back surface side of the bottom 2 of the bathtub 3 includes a second convex portion 82c formed in an annular shape over the entire circumference. The lower surface 80b of the first portion 80 of the packing 56 located on the surface side of the bottom portion 2 of the bathtub 3 includes a third convex portion 80d formed in an annular shape over the entire circumference. As shown in FIG. 8, the first convex portion 80c, the second convex portion 82c, and the third convex portion 80d form a chevron-curved convex portion when not pressed against the facing surfaces.

As shown in FIG. 5, the packing 56 attached to the inner peripheral edge of the hole 3a is arranged so as to be sandwiched between the lower surface 50c of the first flange 50b and the upper surface 58b of the second flange 58a. At this time, the lower surface 50c of the first flange portion 50b forms a seal between the lower surface 50c of the first flange portion 50b and the upper surface 80a of the first portion 80 located on the surface side of the bottom portion 2 of the packing 56. Is in contact with the upper surface 80a of the first portion 80. Further, the upper surface 58b of the second flange portion 58a has a second portion such that the upper surface 82a of the second portion 82 located on the back surface side of the bottom portion 2 of the packing 56 forms a seal with the back surface 2b of the bottom portion 2. It comes into contact with the lower surface 82b of 82.

Here, in the present embodiment, the bathtub cleaning nozzle device 12 is attached to the bathtub 3 having a non-slip uneven shape 5 on the bottom portion 2. Here, the main body of the bathtub cleaning nozzle device 12 includes a rotation mechanism for rotating the nozzle main body 14. Therefore, the outer diameter of the main body is relatively large and the outer diameter of the packing 56 is relatively large as compared with the case where the main body is formed as a mechanism that does not rotate the nozzle body. As a result, there is a high possibility that at least a part of the packing 56 overlaps the non-slip uneven shape 5 (particularly the convex portion 5a) of the bottom 2 of the bathtub 3, and the packing 56 is made to have the non-slip uneven shape 5 (particularly the convex portion 5a). It is relatively difficult to arrange it while avoiding. When the packing 56 is arranged so as to overlap the non-slip uneven shape 5, the lower surface 80b of the first portion 80 is arranged so as to be mainly in contact with the upper surface of the non-slip uneven shape 5 convex portion 5a. However, as shown in FIG. 6, a non-slip uneven shape 5 is not formed under another portion of the entire circumference of the first portion 80. As a result, a part of the entire circumference of the first portion 80 is unevenly stressed or deformed, and is slightly between the lower surface 80b of the first portion 80 and the recess 5b or the bottom 2 of the non-slip uneven shape 5. A gap is formed, and water flows out between the packing 56 and the bottom 2 from the lower surface 80b side of the first portion 80 as shown by an arrow F1 (see FIG. 5).

When at least a part of the packing 56 overlaps the non-slip uneven shape 5 of the bottom portion 2 of the bathtub 3, the lower surface 50c of the first flange portion 50b seals with the upper surface 80a of the first portion 80. It is possible to prevent water from leaking from the upper surface 80a side of the first portion 80 to the space on the back surface side of the bottom portion 2 of the bathtub 3.
Further, in the above case, the upper surface 82a of the second portion 82 forms a seal with the back surface 2b of the bottom portion 2 of the bathtub 3. Therefore, even if water infiltrates through the gap between the lower surface 80b of the first portion 80 and the non-slip uneven shape 5 (or the bottom 2), the upper surface 82a of the second portion 82 is the back surface of the bottom 2 of the bathtub 3. A seal is formed with 2b. Therefore, it is possible to prevent water from leaking from the upper surface 82a side of the second portion 82 to the space on the back surface side of the bottom portion 2 of the bathtub 3.

Even if the upper surface 80a of the first portion 80 does not include the first convex portion 80c, the lower surface 50c of the first flange portion 50b can form a seal with the upper surface 80a of the first portion 80. However, when the upper surface 80a of the first portion 80 includes the first convex portion 80c, the shape of the lower surface 50c of the first flange portion 50b or the upper surface 80a of the first portion 80 is initially formed due to manufacturing error, stress, or the like. Even if the change is made from the schedule of the above, the seal can be formed more reliably at the intended location of the first convex portion 80c.
Similarly, even if the upper surface 82a of the second portion 82 does not include the second convex portion 82c, the upper surface 82a of the second portion 82 can form a seal with the back surface 2b of the bottom portion 2 of the bathtub 3. However, when the upper surface 82a of the second portion 82 includes the second convex portion 82c, the shape of the upper surface 82a of the second portion 82 or the back surface 2b of the bottom 2 of the bathtub 3 is initially formed due to manufacturing error, stress, or the like. Even if the change is made from the schedule of the above, the seal can be formed more reliably at the intended location of the second convex portion 82c.

Further, even if the lower surface 80b of the first portion 80 does not include the third convex portion 80d, as shown in FIG. 6, in the region where the non-slip uneven shape 5 is not formed, the lower surface 80b of the first portion 80 Can form a seal with the surface 2a of the bottom 2. However, when the lower surface 80b of the first portion 80 includes the third convex portion 80d, the shape of the lower surface 80b of the first portion 80 or the surface 2a of the bottom 2 has changed from the initial plan due to a manufacturing error or the like. Even in this case, the seal can be more reliably formed at the intended location of the third convex portion 80d.
In this way, when the first convex portion 80c, the second convex portion 82c, and the third convex portion 80d are pressed against the facing surfaces, the first convex portion 80c, the second convex portion 82c, and the third convex portion 80d Each of the third convex portions 80d is in a relatively flatly deformed state.

If the non-slip uneven shape 5 does not overlap the entire circumference of the packing 56 (when the state shown in FIG. 6 is formed over the entire circumference of the packing 56), the lower surface 50c of the first flange portion 50b is formed. Formed a seal with the upper surface 80a of the first portion 80 of the packing 56, and the lower surface 80b of the first portion 80 of the packing 56 formed a seal with the surface 2a of the bottom 2 of the bathtub 3. To do. Therefore, even when the packing 56 does not overlap the non-slip uneven shape 5 over the entire circumference, a seal between the packing 56 and the bathtub 3 and a seal between the packing 56 and the first flange portion 50b are formed. There is. A seal can be formed in either case where at least a part of the packing 56 overlaps the uneven shape 5 of the bottom portion 2 or when the packing 56 does not overlap the uneven shape 5 of the bottom portion 2. Therefore, it is not necessary to change the shape and position of the non-slip between the bathtub to which the bathtub cleaning device 10 is attached and the bathtub to which the bathtub cleaning device 10 is not attached, and a common bathtub can be used. Further, it is not necessary to change the structure of the packing 56 or the like between the bathtub in which the bottom portion 2 of the bathtub 3 is provided with the uneven shape 5 for slip prevention and the bathtub in which the uneven shape 5 is not provided, and a common packing 56 or the like can be used. .. Further, since the bathtub cleaning device 10 does not need to be arranged so as to avoid the uneven shape 5 of the bottom portion 2, the bathtub cleaning device 10 can be arranged at any position of the bottom portion 2. Since the upper surface 82a of the second portion 82 of the packing 56 also forms a seal between the lower surface 2b of the bottom 2 of the bathtub 3 and the back surface 2b of the bottom 2 of the bathtub 3, tentatively, between the lower surface 80b of the first portion 80 and the surface 2a of the bottom 2. Even if the seal does not work, the seal between the packing 56 and the bathtub 3 is guaranteed.

Next, the bathtub cleaning process by the bathtub cleaning device according to the embodiment of the present invention will be described with reference to FIG.
When the cleaning mode is started, the detergent solenoid valve 36 is opened and the detergent pump 40 is turned on. As a result, the supply of the detergent to the cisturn 30 is started. When the water level in the systurn 30 reaches a certain position, the detergent solenoid valve 36 is closed and the detergent pump 40 is turned off. This provides the amount of detergent needed to produce a 10% concentration of detergent water in the cistern.

Next, the water supply solenoid valve 26 is opened, and the supply of water to the systurn 30 is started. Next, the float switch 31 determines whether or not the water level in the systurn 30 has reached the full water level W0. When the water level in the cis turn 30 reaches the full water level W0, the water supply solenoid valve 26 is closed. As a result, detergent water in which detergent and water are mixed is generated in the cistern.

Next, the cleaning pump 44 is turned on, the rotation of the nozzle body 14 is started, and the detergent water in the cistern is injected. The nozzle body 14 sprays detergent water while rotating. After that, the control unit 48 turns off the cleaning pump 44, stops the rotation of the nozzle body 14, and completes cleaning with detergent water. After that, the control unit 48 waits for a predetermined time.

Next, the water supply solenoid valve 26 is opened. As a result, the supply of hot water (or water) to the cisturn 30 is started. Next, it is determined whether or not the water level in the systurn 30 has reached the full water level W0. When the full water level W0 is reached, the control unit 48 closes the water supply solenoid valve 26. Next, the cleaning pump 44 is turned on, the rotation of the nozzle body 14 is started, the water in the cistern is injected, and rinsing is performed.

As described above, in the present embodiment, the inner wall surface of the bathtub is washed by first washing with detergent water and then rinsing with water. ..

According to the present embodiment configured as described above, when at least a part of the packing 56 overlaps the uneven shape 5 of the bottom portion 2 of the bathtub 3, the lower surface 50c of the first flange portion 50b is the first portion of the packing 56. A seal can be formed with the upper surface 80a of the 80 to prevent water from leaking from the upper surface 80a side of the first portion 80 of the packing 56 to the space on the back surface side of the bottom 2 of the bathtub 3. Further, even if water enters through the gap between the lower surface 50c of the first portion 80 of the packing 56 and the uneven shape 5 of the bottom 2 of the bathtub 3, the upper surface 82a of the second portion 82 of the packing 56 is the bathtub 3. A seal is formed with the back surface of the bottom portion 2. Therefore, it is possible to prevent water from leaking from the upper surface 82a side of the second portion 82 of the packing 56 to the space on the back surface side of the bottom portion 2 of the bathtub 3. Therefore, when at least a part of the packing 56 overlaps the uneven shape 5 of the bottom 2 of the bathtub 3, it is possible to prevent water from leaking from the inside of the bathtub 3 to the space on the back surface side of the bottom 2 of the bathtub 3, and the unevenness can be prevented. The bathtub cleaning nozzle device 12 can be attached to the bottom 2 of the bathtub 3 having the shape 5.

Further, in the present embodiment, when at least a part of the packing 56 overlaps the uneven shape 5 of the bottom portion 2 of the bathtub 3, the upper surface 80a of the first portion 80 of the packing 56 is formed in an annular shape over the entire circumference. Since the first convex portion 80c is provided, even if the shape of the lower surface 50c of the first flange portion 50b or the upper surface 80a of the packing 56 changes from the original plan due to manufacturing error, stress, or the like, the intended first first. The seal can be formed more reliably at the location of the convex portion 80c. Therefore, the lower surface 50c of the first flange portion 50b forms a seal more reliably with the upper surface 80a of the first portion 80 of the packing 56, and water flows from the upper surface 80a side of the first portion 80 of the packing 56 to the bathtub 3. It is possible to more reliably prevent leakage to the space on the back surface side of the bottom portion 2.
Further, since the upper surface 82a of the second portion 82 of the packing 56 includes a second convex portion 82c formed in an annular shape over the entire circumference, it is assumed that the upper surface 82a of the second portion 82 of the packing 56 or the bottom portion 2 of the bathtub 3 Even if the shape of the back surface changes from the initial plan due to manufacturing error, stress, or the like, the seal can be formed more reliably at the intended location of the second convex portion 82c. Therefore, even if water infiltrates through the gap between the lower surface 50c of the first portion 80 of the packing 56 and the uneven shape 5 of the bottom 2 of the bathtub 3, the second portion 82 of the packing 56 having a U-shaped cross section The upper surface 82a more reliably forms a seal with the back surface of the bottom 2 of the bathtub 3. Therefore, it is possible to more reliably prevent water from leaking from the upper surface 82a side of the second portion 82 of the packing 56 to the space on the back surface side of the bottom portion 2 of the bathtub 3. Therefore, when at least a part of the packing 56 overlaps the uneven shape 5 of the bottom 2 of the bathtub 3, it is possible to more reliably prevent water from leaking from the inside of the bathtub 3 to the space on the back surface side of the bottom 2 of the bathtub 3. it can.

Further, in the present embodiment, when the packing 56 does not overlap the uneven shape 5 of the bottom portion 2 of the bathtub 3, the lower surface 50c of the first flange portion 50b is between the upper surface 80a of the first portion 80 of the packing 56. It is possible to prevent water from leaking from the upper surface 80a side of the first portion 80 of the packing 56 to the space on the back surface side of the bottom portion 2 of the bathtub 3. Further, the lower surface 80b of the first portion 80 of the packing 56 forms a seal with the surface of the bottom 2 of the bathtub 3, and water flows from the lower surface 80b side of the first portion 80 of the packing 56 to the bottom 2 of the bathtub 3. It is possible to prevent leakage to the space on the back side of the. Therefore, even when the packing 56 does not overlap the uneven shape 5 of the bottom 2 of the bathtub 3, it is possible to prevent water from leaking from the inside of the bathtub 3 to the space on the back surface side of the bottom 2 of the bathtub 3, and the uneven shape 5 The bathtub cleaning nozzle device 12 can be attached to the bottom portion 2 of the bathtub 3 that does not have the above-mentioned, or the bottom portion 2 of the bathtub 3 that does not have the uneven shape 5.
Further, the lower surface 80b of the first portion 80 of the packing 56 includes a third convex portion 80d formed in an annular shape over the entire circumference. As a result, even if the shape of the lower surface 80b of the first portion 80 of the packing 56 or the surface of the bottom 2 of the bathtub 3 of the packing 56 changes from the original plan due to manufacturing error, stress, or the like, the intended third The seal can be formed more reliably at the location of the convex portion 80d. Therefore, the lower surface 80b of the first portion 80 of the packing 56 forms a seal more reliably with the surface of the bottom 2 of the bathtub 3, and water flows from the lower surface 80b side of the first portion 80 of the packing 56 to the bathtub 3. It is possible to more reliably prevent leakage to the space on the back surface side of the bottom portion 2.

Further, in the present embodiment, since the cleaning nozzle body including the nozzle body 14 and the like further includes a rotation mechanism for rotating the nozzle body, the outer diameter of the cleaning nozzle body is formed to be relatively large, and an annular packing is formed. The outer diameter of 56 is formed to be relatively large. As a result, there is a high possibility that at least a part of the packing 56 overlaps the uneven shape 5 of the bottom portion 2 of the bathtub 3, and it becomes relatively difficult to arrange the packing 56 so as to avoid the uneven shape 5. In this way, even when the cleaning nozzle main body is provided with a rotation mechanism, the bathtub cleaning nozzle device 12 can be attached to the bottom 2 of the bathtub 3 having the uneven shape 5.

Further, in the present embodiment, in a bathtub device having a bathtub 3 having an uneven shape 5 formed on the bottom portion 2 and a bathtub cleaning nozzle device 12 attached to the bathtub 3, at least a part of the packing 56 is a bathtub. When overlapping with the uneven shape 5 of the bottom portion 2 of 3, it is possible to prevent water from leaking from the inside of the bathtub 3 to the space on the back surface side of the bottom portion 2 of the bathtub 3.

1 Bathtub device 2 Bottom 2a Front surface 2b Back surface 3 Bathtub 3a Hole 4 Inner wall surface 5 Concavo-convex shape 5a Convex 12 Bathtub cleaning nozzle device 14 Nozzle body 50b First flange 50c Bottom surface 58a Second flange 58b Top surface 62 Injection port 80 1st part 80a Upper surface 80b Lower surface 80c 1st convex part 80d 3rd convex part 82 2nd part 82a Upper surface 82b Lower surface 82c 2nd convex part

Claims (4)

A bathtub cleaning nozzle device that is attached to a hole provided in the bottom where an uneven shape is formed in a bathtub.
An injection port portion that is formed so as to be inserted through the hole portion and sprays detergent water toward the inner wall surface of the bathtub, and a first flange portion that extends along the surface of the bottom portion of the bathtub. The cleaning nozzle body and
A second flange portion extending along the back surface of the bottom portion of the bathtub and
The sealing member includes the sealing member having a U-shaped cross section that opens outward, being formed in an annular shape, and being attached to the inner peripheral edge of the hole.
At least a part of the sealing member is arranged so as to overlap the uneven shape in the top view.
The lower surface of the first flange portion is such that the lower surface of the first flange portion forms a seal with the upper surface of the first portion of the sealing member located on the surface side of the bottom portion. In contact with the top surface of
The upper surface of the second flange portion is formed with the lower surface of the second portion so that the upper surface of the second portion of the sealing member located on the back surface side of the bottom portion forms a seal with the back surface of the bottom portion. A bathtub cleaning nozzle device characterized by being abutted. The upper surface of the first portion of the sealing member includes a first convex portion formed in an annular shape over the entire circumference.
The bathtub cleaning nozzle device according to claim 1, wherein the upper surface of the second portion of the sealing member includes a second convex portion formed in an annular shape over the entire circumference. The bathtub cleaning nozzle device according to claim 1 or 2, wherein the cleaning nozzle body portion includes a nozzle body including the injection port portion and a rotation mechanism for rotating the nozzle body. It ’s a bathtub device,
With the bathtub having the uneven shape formed on the bottom
A bathtub device including the bathtub cleaning nozzle device according to any one of claims 1 to 3.

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