JP2001149246A - Bathtub cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathtub cleaner capable of effectively washing a bathtub through the use of remaining hot water in the bathtub after bathing while its main body floats on the bath water in the bathtub. SOLUTION: The cleaner is provided with a main body 1 constituted so as to be able to float on the bath water, a water feeding port 2 provided at the prescribed position of the main body 1, a jetting port 3 for jetting water fed from the port 2 and a pump 5 for feeding the bath water to the port 3 from the port 2. The port 3 is installed on a side upper than the surface of the bath water. The second jetting port 11 jetting downward compared with the jetting direction of the port 3 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub cleaning device in which a main body floats in bathwater of a bathtub and uses the remaining hot water in the bathtub to wash the inside of the bathtub.

[0002]

2. Description of the Related Art To clean a bathtub at home,
Generally, a liquid detergent is applied in a bathtub, stains are removed with a sponge, cloth, or the like, and then the detergent and stains are washed away using a shower or the like provided in the bathroom to clean the bathtub. Also, without using a sponge, cloth, etc., apply a liquid detergent (can be washed without rubbing) to the wall inside the bathtub with a spray bottle type container, and then lift up the dirt with the liquid detergent. Cleaners are cleaned using detergents that can be used to wash away detergent and dirt using a shower.

However, in the former case, it is necessary to apply a liquid detergent and then wipe down with a cloth or sponge while bending down the waist, and when rinsing with a shower or the like, water splashes around and the worker scatters. It was very complicated, inefficient, and uneconomical due to wet clothes and the cost of water for using the water supply. Also, in the latter case, when spraying the detergent on the wall surface in the bathtub, it is necessary to bend down and spray similarly,
There have been problems in that, depending on the method of spraying, spots may be formed or detergent may be used excessively. Furthermore, when washing away with a shower etc. similarly to the above, there existed a problem that water scattered around and leaked the clothes of the worker, and the cost of water supply was required.

Therefore, conventionally, a detergent has been automatically sprayed,
After that, there is a bathtub cleaning device that cleans the inside of the bathtub with tap water, but in that case, since the water supply is directly connected, a water pipe is required, and it is necessary to perform piping work in the bathtub, and the pipe is installed during the original bathing. Since it was in the way and a large amount of tap water was used, the cost of tap water was also incurred. In addition, the apparatus itself is large, and an installation space and the like are required.

[0005] Further, a bathtub cleaning device that can be cleaned by using remaining hot water in the bathtub after bathing has been proposed, but even in such a case, a pipe or the like at the time of installing the device becomes an obstacle,
When piping is provided outside the bathroom, very large-scale construction such as piping work is required.

[0006] Incidentally, there is a type in which water remaining in a bathtub is drained and the remaining hot water is sucked up and sprayed on a wall surface, and washing is continued until complete drainage. However, this is a type in which a shower can only be taken upward from the main body. The bottom of the bathtub could not be cleaned.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has a main body floating in bath water of a bathtub.
An object of the present invention is to provide an economical bathtub cleaning device that can be cleaned by using remaining hot water after bathing in a bathtub, has a high cleaning effect, and is economical.

[0008]

In order to solve the above-mentioned problems, a bathtub cleaning apparatus according to the present invention comprises a main body 1 configured to float on bath water and a water supply provided at a predetermined position of the main body 1. A mouth 2, an injection port 3 for injecting water supplied from the water supply port 2, and a pump 5 for supplying bath water from the water supply port 2 to the injection port 3, wherein the injection port 3 is above the bath surface. And a second jet port 11 for jetting downward from the jet direction of the jet port 3 is provided. With such a configuration, not only can the side wall of the bathtub 35 be washed by injecting bath water from the injection port 3, but also,
By jetting from the second jet port 11 below the jetting direction of the jet port 3, it is possible to effectively clean the portion below the portion to be cleaned by jetting from the jet port 3.

Further, it is preferable that the second injection port 11 is configured so as to inject bath water downward with respect to the bath water surface. With such a configuration, the side wall and the bottom of the bath tub 35 below the bath surface can be effectively cleaned by the bath water injected from the second injection port 11 below the bath surface.

Further, it is preferable that the second injection port 11 is configured so as to inject the bath water obliquely downward with respect to the bath water surface. With such a configuration, the side wall and the bottom of the bathtub 35 can be cleaned over a wide area, and the corner between the bottom and the side wall of the bathtub can also be cleaned.

It is preferable that the second injection port 11 is provided on the lower surface of the main body 1. With such a configuration, the second injection port 11 for injecting the main body 1 downward can be easily provided.

It is preferable that the main body 1 be substantially circular in plan view from below, and that the plurality of second injection ports 11 be arranged concentrically. With such a configuration, the second injection port 11 can be arranged on the lower surface of the main body 1 in a well-balanced manner.

It is preferable that the second injection ports 11 are arranged at equal intervals. With such a configuration,
Bath water sprayed from the plurality of second spray ports 11 can be sprayed at equal intervals, so that the washing can be performed evenly.

It is preferable that each of the second injection ports 11 is formed in a slit shape. With such a configuration, the bath water jetted from the second jet port 11 can be jetted from a slit-shaped portion over a wide range as a strong water flow.

It is preferable that the second injection ports 11 are arranged so as to face the center of the lower surface of the main body 1. With such a configuration, the second injection port 11 can be arranged on the lower surface of the main body 1 in a well-balanced manner.

Further, a water level detecting means 66 for detecting a water level in the bathtub is provided. When the water level detecting means 66 detects that the water level has reached a predetermined level, the injection from the second injection port 11 is started. It is preferable to provide a control means for performing the control. In this way, the injection from the second injection port 11 starts when the predetermined water level is reached by the water level detection means 66, so that the injection from the second injection port 11 reaches and the bottom of the bathtub 35 is effectively placed. After the cleaning is completed, the spraying is started to perform the cleaning, and the cleaning can be performed efficiently without waste.

The water level detecting means 66 is provided with a switch 66
a and a lever 66b extending in the bottom direction of the bathtub, and it is preferable that a predetermined water level is detected by operating a switch when the lever 66b reaches the bottom of the bathtub 35. . With such a configuration, the water level can be reliably detected with a simple structure in which the lever 66b reaches the bottom of the bathtub 35.

Preferably, the switch is a float switch. With such a configuration, the switch can be configured with a simple configuration called a float switch.

Preferably, the switch is a limit switch. With such a configuration, the switch can be configured with a simple configuration called a limit switch.

Further, it is preferable that the water level detecting means 66 is configured to detect the water level by transmitting ultrasonic waves toward the bottom of the bathtub and receiving ultrasonic waves reflected at the bottom of the bathtub. With such a configuration, the water level can be easily detected by ultrasonic waves.

Further, the water level detecting means 66 is constituted by an ultrasonic sensor which forms a predetermined detection area by receiving ultrasonic waves, and when the bottom of the bathtub exists in the detection area of the ultrasonic sensor, the predetermined water level is detected. It is preferable that the system be configured to recognize that the pressure has been reached. With such a configuration, the water level can be reliably detected by the ultrasonic sensor.

Preferably, the water level detecting means 66 is an ultrasonic sensor which constantly detects the water level of the bathtub by transmitting and receiving ultrasonic waves. With such a configuration, the water level in the bathtub can be easily detected by ultrasonic waves.

Further, it is preferable that the water level detecting means 66 is an optical sensor which constantly detects the water level of the bathtub by transmitting and receiving predetermined light. With such a configuration, the water level can be easily detected by the optical sensor.

It is preferable to provide a control means for controlling the injection from the injection port 3 to be stopped when the water level detection means 66 detects a predetermined water level. With such a configuration, when the predetermined water level is reached, the injection from the injection port 3 is stopped, so that it is possible to prevent the possibility of the empty operation.

Further, it is preferable that a control means for controlling the injection from the injection port 3 to be stopped after a predetermined time has passed since the water level detecting means 66 has detected a predetermined water level is provided. With such a configuration, it is possible to prevent the possibility of an empty operation.

It is preferable to provide a control means for controlling the injection from the injection port 3 to be stopped when the water level detection means 66 detects a water level which is shallower by a certain amount than a predetermined water level. With such a configuration, it is possible to prevent the possibility of an empty operation.

Further, a control means for controlling the injection from the second injection port 11 to be started after a lapse of a predetermined time from the start of injection of the bath water from the injection port 3 may be provided. preferable. With such a configuration, the bottom of the bathtub 35 can be effectively cleaned by the injection from the second injection port 11 after a certain period of time after the injection of the bath water from the injection port 3 is started. In this state, at this time, the injection is started from the second injection port 11 to perform the cleaning, and the cleaning can be efficiently performed without waste.

Further, it is preferable to provide a control means for controlling the injection from the injection port 3 to stop after a lapse of a predetermined time after the injection of the bath water from the injection port 3 is started. With such a configuration, it is possible to prevent the possibility of an empty operation.

Further, it is preferable to provide control means for controlling the injection from the injection port 3 to be stopped after a predetermined time has elapsed from the start of the injection from the second injection port 11.
With such a configuration, when the water level becomes low,
This makes it possible to prevent empty driving in relation to the second injection port 11.

Further, empty operation detection means for detecting the presence or absence of bath water in the bathtub 35 is provided. When the empty operation detection means detects that there is no bath water in the bathtub 35, the second injection port 11 outputs It is preferable to provide control means for controlling the injection to stop. By adopting such a configuration, when the second spray port 11 is sprayed to the bottom of the bathtub 35 for cleaning, the bottom of the bathtub 35 can be effectively cleaned until immediately before the empty operation, and the empty operation can be prevented. Is what you can do.

Preferably, the empty operation detecting means is configured to detect the presence or absence of the inside of the bathtub by measuring an electric variable of the pump drive. With such a configuration, the empty operation can be detected by a simple means of measuring the electric variable of the pump drive.

Further, it is preferable that the empty operation detecting means is constituted by a float switch. With such a configuration, it is possible to detect empty operation with a simple configuration such as a float switch.

It is preferable that a tank for storing a fixed amount of bath water injected from the second injection port 11 is provided. With such a configuration, the bottom of the bathtub 35 in which the bath water has run out can be effectively cleaned.

Further, a tank for storing a fixed amount of bath water injected from the second injection port 11 is provided, and empty operation detection means for detecting the presence or absence of bath water in the bathtub is provided. It is preferable to provide control means for injecting the bath water in the tank from the second injection port 11 when detecting that there is no bath water in the bathtub. With such a configuration, the bottom of the bathtub 35 can be effectively washed with the bathwater stored in the tank after the water in the bathtub 35 is exhausted.

Further, it is preferable to provide an injection pressure varying means for varying the pressure of the injection from the second injection port 11. With such a configuration, the pressure of the injection from the second injection port 11 can be varied according to the cleaning stage, and effective cleaning can be performed.

It is preferable that the injection pressure variable means controls the driving force of the pump 5 to be changed.
With such a configuration, the injection pressure can be varied by a simple means of changing the driving force of the pump 5.

Further, the injection pressure variable means is provided for the second injection port 11.
It is preferable that the pressure is controlled so that the pressure of the injection from the nozzle decreases. With such a configuration, when the water level is low, the injection pressure is reduced, so that the dirt is not blown off by the strong water pressure, and the dirt can be smoothly collected at the drain port side by the weak injection pressure. .

Further, the injection pressure variable means is provided for the second injection port 11.
It is preferable to control so that the pressure of the injection from the nozzle decreases linearly. With such a configuration, the injection pressure from the second injection port 11 can be continuously reduced according to the water level.

Further, the injection pressure variable means is provided in the second injection port 11.
It is preferable to control so that the pressure of the injection from the nozzle gradually decreases. With such a configuration, the injection pressure from the second injection port 11 can be reduced stepwise according to the water level.

Further, the injection pressure variable means is provided for the second injection port 11.
It is preferable to control so that the pressure of the injection from the nozzle pulsates. With such a configuration, the bath water from the second injection port 11 is jetted in a pulsating manner, so that effective cleaning can be performed.

Further, the injection pressure variable means is provided for the second injection port 11.
It is preferable that the pressure is controlled so that the pressure of the injection from the nozzle varies in a pulsed manner. With such a configuration, the bath water from the second injection port 3 is jetted in a pulsed manner, so that effective cleaning can be performed.

It is preferable that the water supply port 2 is provided on the lower surface of the main body 1. With such a configuration, even if the water level in the bathtub becomes low, water can be reliably supplied from the water supply port 2 provided on the lower surface of the main body 1 and sprayed as washing water.

It is preferable that the water supply port 2 is provided with a filter 41b and a filter frame 41a for holding the filter 41b. With such a configuration, the filter 41b can reliably collect the hair, dust, and the like so as not to enter the inside, and the hair or dust is injected into the bath water injected from the injection port 3 or the second injection port 11. It is possible to prevent garbage etc. from being included.

It is preferable that the filter frame 41a is provided in the water supply port 2 so as to be detachable. With such a configuration, when the filter 41b is clogged, the filter frame 41a can be removed for cleaning or replacement.

It is preferable that the second injection ports 11 are arranged so as to surround the water supply port 2. With such a configuration, the plurality of second injection ports 11 and the water supply port 2 can be rationally arranged on the lower surface of the main body.

It is preferable that the main body 1 is provided with legs 28 so that the water supply port 2 and the second injection port 11 do not contact the bottom of the bathtub 35. With such a configuration, when the water level is lowered and the main body 1 is in contact with the bottom of the bathtub 35, it can be stably grounded, and in this case, the water supply port 2 and the second injection port 11 are closed. Without the second injection port 11
It can be injected from.

Further, it is preferable that the leg portion 28 is provided so as not to be on an extension of the injection direction of the second injection port 11. By adopting such a configuration, bath water can be sprayed from the second injection port 11 to be washed without being disturbed by the legs 28, despite the provision of the legs 28. Things.

It is preferable that the main body 1 is provided with a connection line 31 for power supply so that the power is supplied from the outside of the main body 1 and the pump 5 is driven. With such a configuration, the pump 5 can be driven with a simple structure by external power supply.

It is preferable that the connection line 31 is provided on the lower surface of the main body 1. With such a configuration, the connection line 31 can be kept out of the way.

It is preferable that the main body 1 is provided with a leg 28 on which the connection wire 31 can be wound. When not used, the connection wire 31 can be wound around the leg 28 to make it compact.

It is preferable that the leg 28 is provided with a stopper for holding the winding state of the connection wire 31. With such a configuration, the connection wire 31 wound around the leg 28 is formed.
It is something that can be kept apart.

It is preferable that a detergent tank 6 is provided in a path from the pump 5 to the injection port 3 and a mixing section 8 for mixing bath water and detergent is provided. With such a configuration, the mixed liquid in which the detergent is mixed can be ejected from the ejection port 3 to effectively clean the liquid.

It is preferable that the detergent tank section 6 also functions as the mixing section 8. With such a configuration, the structure is simplified and the space can be saved.

It is preferable that a detergent inlet 15 be provided in the detergent tank 6 and a cap 16 be detachably provided in the detergent inlet 15. With such a configuration, the cap 16 can be opened to supply the detergent from the detergent inlet 15.

It is preferable that a branch path 55 branched from a path from the pump 5 to the injection port 3 is provided, and the branch path 55 is formed so as to reach the second injection port 11.
With such a configuration, the pump 5 can be configured with a simple configuration.
The bath water can be jetted from the second jet port 11 through the branch path 55 from the nozzle.

It is preferable to provide a switching valve between the path from the pump 5 to the injection port 3 and the branch path 55.
With such a configuration, it is possible to switch between the injection from the injection port 3 and the injection from the second injection port 11 by switching the switching valve 57.

It is preferable to provide an on-off valve 58 in the branch path 55. With such a configuration, the injection and non-injection from the second injection port 11 can be performed by operating the on-off valve.

[0058]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

FIGS. 1 to 9 show an embodiment of the present invention. A bathtub cleaning apparatus according to the present invention includes a main body 1 that floats in bathwater in a bathtub 35 to clean the inside of the bathtub 35, and a power supply unit 3 that supplies power to the main body 1 and controls the operation of the main body 1.
7 and the main body 1 and the power supply unit 37 are connected by a connection line 31 for supplying power to the main body 1.

The main body 1 is as shown in FIGS. 1 to 9. The outer peripheral portion of a housing 38 constituting the outer shell of the main body 1 has a hermetic structure, and the hermetically sealed chamber 27 is provided inside the main body 1.
Since the bath water does not enter the hermetically sealed chamber 27 provided inside the main body 1, buoyancy can be generated by the housing 38 itself, and the main body 1 can be reliably floated in the bath water. It has a structure.

As shown in FIG. 5, the water supply port 2 is provided in the housing 38 below the water draft surface 49 when the main body 1 is floated in the bath water. The water supply port 2 is provided in the housing 38.
A pump 5 for sucking up bath water is provided. The pump 5 is a centrifugal pump and includes a pump case 5a, a rotary blade 23, a motor 24, a bell mouth 5b, and the like. To suck up the bath water, the motor 24 is rotated by the power supplied to the motor 24 through the connection line 31 from the power supply unit 37, and the rotating wings 23 fixed to the motor shaft are rotated to centrifuge the nearby bath water. A force is generated, and the bath water in which the centrifugal force is generated passes through the bottom surface of the bell mouth 5b and is supplied into the pump case 5a. In this way, the bath water is continuously supplied into the pump case 5a. It is structured to be supplied and sucked up.

The shaft of the motor 24 is sealed with a packing 39 to prevent the inside of the motor 24 from being flooded by the water pressure of the water sucked up by the pump 5 (see FIG. 6). The packing 39 has a structure that enhances the sealing performance when a water pressure is applied from the outside, so that the packing 39 is suitable for packing a rotating object such as the shaft of the motor 24.

As shown in FIG. 5, a rectifying rib 26 is provided near the bath water outlet 25 of the pump case 5a to attenuate the centrifugal force applied to the water. Here, the rectifying rib 26
Is provided for the following reason. That is, near the bath water outlet 25 of the pump case 5a, the centrifugal force given to the bath water causes the bath water to flow around the wall of the pump case 5a as shown in FIG. The wall 40a may be formed to block the bath water outlet 25, and an air pocket 40b may be generated at the center of the pump case 5a, so that the bath water may not be sucked up. In order to solve this, in the present embodiment, a rectification rib 2 for attenuating the centrifugal force applied to the water is provided near the bath water outlet 25 of the pump case 5a.
By providing 6, by attenuating the centrifugal force of the bath water near the bath water outlet 25 at the time of suction when the pump 5 is activated,
As shown in FIG. 7B, there is no air pool at the center of the pump case 5a, and the pump 5 can be sucked up more smoothly when it is started.

As shown in FIG. 5, a filter frame 41a is detachably attached by screwing to a lower portion of a bell mouth 5b of a water supply port 2 provided on a lower surface portion of the main body 1, and is attached to the filter frame 41a. The filter 41b is detachably held by sandwiching the built-in filter 41b between the bell mouth 5b and the filter frame 41a. The filter 41b absorbs impurities in the bath water when sucking the bath water, for example, hair,
This is for removing sebum and the like. By attaching the filter frame 41a in which the filter 41b is installed, there is no fear that large impurities enter the flow path inside the main body 1 and the flow path is prevented from being clogged. You can do it. Further, since the filter frame 41a, the filter 41b, and the bell mouth 5b have a detachable structure, maintenance is performed when the filter 41b is clogged, and even when impurities are entangled with the rotating blade 23, the motor shaft, etc. The maintenance can be done easily by removing.

Next, the bath water sucked from the pump 5 passes through the bath water outlet 25 of the pump 5 in the main body 1.
It flows into the detergent tank 6 from the pump connection pipe 42. A fixed amount of a detergent for washing the inside of the bathtub 35 is previously supplied to the detergent tank portion 6, and a mixed liquid in which the bath water and the detergent are mixed for a certain time immediately after the bath water flows into the detergent tank portion 6. Is pushed out to the outlet 12 of the detergent tank portion 6. Therefore, in this embodiment, the detergent tank 6 also serves as the mixing unit 8 for mixing the bath water and the detergent. When the detergent in the detergent tank section 6 is pushed out by the bath water and the detergent runs out, the bath water passes through the detergent tank section 6 and flows to the outlet 12 of the detergent tank section 6.

That is, from the outlet 12 of the detergent tank section 6, the injection port 3 of the nozzle section 4 described later, or the second injection port 11
For a certain period of time immediately after the pump 5 is started, the mixed liquid in which the bath water and the detergent are mixed flows, and thereafter, the bath water sucked up from the pump 5 flows directly into the outlet 12 of the detergent tank portion 6. I have. Therefore, in the present embodiment, the detergent tank section 6 has both a storage function for storing the detergent and a mixing function for mixing the bath water and the detergent.

The inlet of the bath water from the pump 5 to the detergent tank 6 (ie, the connection between the pump connecting pipe 42 and the detergent tank 6) is connected to the water surface 10 when the detergent is introduced into the detergent tank 6. It is provided so as to be located above. As described above, by providing the inlet above the water surface 10 when the detergent is charged into the detergent tank portion 6, when the detergent is charged, the detergent can flow back to the pump 5 through the pump connection pipe 42. Therefore, the detergent can be reliably stored in the detergent tank 6.

The detergent tank 6 has a detergent inlet 15 for introducing detergent and a cap 16 for opening and closing the detergent inlet 15. The cap 16 is provided with a water pressure of the bath water sucked up from the pump 5. It has a closed structure so that it can withstand. Since the opening and closing structure of the cap 16 can be easily opened and closed and has a sealing function, the bayonet method (when the cap 16 is rotated left or right, the cap 16 rises and the sealing is released, and the right or left side is released. When the cap 16 is rotated in the direction, the cap 16 descends to form a sealed structure, but it is not necessarily limited to this. When charging the detergent into the detergent tank 6, the cap 16 is first opened, the detergent is charged to a certain volume, and the cap 16 is closed again. The cap 16 is connected to the main body 1 by a connecting member 17 such as a connecting string, and can prevent the cap 16 from being lost when the cap 16 is opened and a detergent is supplied. In order to put the liquid detergent into the detergent tank 6, the cap 16 is opened and the liquid detergent is poured into the detergent tank 6, as shown in FIGS.

Next, the bath water (or mixed liquid) flowing into the outlet 12 of the detergent tank section 6 passes through the nozzle connecting pipe 43,
It flows to a nozzle unit 4 attached to the upper surface of the main body 1, is injected from an injection port 3 provided in the nozzle unit 4, and reaches a wall surface in the bathtub 35. Nozzle part 4
Is rotatably attached to the main body 1 above the bath water draft surface 49 when the main body 1 floats on the bath water (rotatably in the circumferential direction of the main body 1).
Is rotatable in the circumferential direction of the main body 1, so that when the bath water (or mixed liquid) is sprayed into the bath tub 35, it can be surely sprayed evenly on the wall in the bath tub 35.

FIG. 9 shows a structure in which the nozzle portion 4 is rotatably connected to the main body 1. In FIG. 9, an end of a nozzle connection pipe 43 is fitted and connected to a connection cylinder 44 of the main body 1, and an inner flange 44 a is provided at an upper end opening of the connection cylinder 44. A bush 45 for smooth rotation of the nozzle portion 4 is fitted therein, and the end portion of the bush 45 faces the inner flange 44a and is connected to the connection cylinder portion 4.
4 and the inlet tube 4a of the nozzle 4 is rotatably fitted into the bush 45 from the upper end opening of the connection tube 44, and the fixing screw 46 is screwed into the inlet tube 4a. The entrance tube portion 4a is attached so that the entrance collar portion 4a does not come off when the flange portion 46 is in close proximity to the bush 45. Here, a sliding ring 47 for reducing the sliding frictional force between the bush 45 and the fixing screw 46 and preventing water leakage from the connection portion is fitted on the fixing screw 46. With such a configuration, the nozzle portion 4 is rotatably and watertightly connected to the main body 1 in the same direction.

An injection port 3 is provided at the tip of the nozzle section 4, and bath water (or mixed liquid) sucked up from a pump 5 is injected from the injection port 3. In this embodiment, the injection port 3 for bath water serves both as an injection port for injecting only bath water and a detergent injection port for injecting a mixture of detergent and bath water. A plurality of nozzles 3 are provided in the nozzle unit 4 (three positions in the embodiment shown in FIGS. 1 to 3 as shown in FIGS. 1 to 3). 2 is set to be inclined with respect to a line connecting the rotation center of the nozzle 3 and the injection port 3, and as shown in FIG. 2, a line L connecting the rotation center of the nozzle unit 4 and the injection port 3 in a plan view is shown. ₁ and the injection direction P from the injection port 3 are shown in FIG.
Has an angle α shown in FIG. in this way,
By injecting direction P from the line L ₁ and the injection port 3 for connecting the rotation center and the injection port 3 of the nozzle portion 4 are different, by using the water pressure of the bath water injected from the injection port 3 (or a mixture) The structure is such that the rotational force of the nozzle portion 4 can be obtained. Therefore, it is not necessary to have another power source for rotating the nozzle unit 4, and the structure can be simplified, and the nozzle unit 4 can be surely rotated. In addition, it is desirable that the jetting direction in the horizontal direction with respect to the rotation axis direction of each nozzle portion 4 (that is, the jetting direction viewed in the vertical plane) be set obliquely upward from the horizontal direction with respect to the bathing water surface. It is. As described above, since the injection direction is set between the horizontal direction and the obliquely upward direction with respect to the bath water surface, the main body 1
The bath water (or mixture) can be reliably sprayed and applied to the wall in the bathtub 35 regardless of the position of the bath 5 in any position while floating in the bath water, and the bath water (or mixture) can be used without waste. injection,
It can be applied.

Further, a leg 28 is provided in a lower part of the main body 1 at a position protruding from the water supply boiler 2 so that the main body 1 can be stably placed on the bottom surface of the bathtub 35 and other floor surfaces. Is available.

Further, on the lower surface of the main body 1, a second injection port 11 is provided as shown in FIGS. Here, a branch path 55 branched from the path from the pump 5 to the injection port 3 is provided, and the second injection port 11 is formed at the tip of the branch path 55. To provide a branch path 55 branched from the path from the pump 5 to the injection port 3, FIGS.
2. As shown in FIGS. 25 and 26, a branch path 55 extends from the middle of the path between the pump 5 and the detergent tank section 6 (mixing section 8).
23 and FIG. 23 and FIG. 24, the branch path 55 may be branched from the middle of the path between the detergent tank section 6 (mixing section 8) and the injection port 3. The latter is second
The hot water mixed with the detergent is jetted from the jet port 11 for cleaning, so that the cleaning effect is improved. Also,
The former is inferior to the latter in terms of the cleaning effect because hot water without detergent mixed therein is injected from the second injection port 11,
Since the injection from the second injection port 11 is mainly injected under the water surface, the amount of the detergent used can be reduced in consideration of the fact that the detergent is easily dispersed in the bath water and easily wasted. ing.

A switching valve 57 is provided at a branch portion of the branch path 55 as shown in FIGS. 21 to 24 so that bath water supplied from the pump 5 is injected from either the injection port 3 or the second injection port 11. It is possible to switch between jetting from both or from both. In the embodiments of FIGS. 22 and 23, an on-off valve 58 is further provided in the middle of the branch path 55 so that the injection from the second injection port 11 and the stop of the injection can be controlled. 25 and 26, the on-off valve 58 dedicated to the injection port 3 is provided in the path for injection from the injection port 3.
And a switching valve 58 dedicated to the second injection port 11 is provided in the branch path 55. By controlling the opening and closing of each of the opening and closing valves 58, the bath water is injected into the injection port 3 and the second injection port 11 , Or both.

As shown in FIG. 4, the main body 1 in which the second injection port 11 is provided on the lower surface has a substantially circular shape in plan view from below, and the second injection port 11 is formed on the substantially circular lower surface. 11 are arranged concentrically. Here, the plurality of second injection ports 11 are arranged at equal intervals, and each of the second injection ports 11 is formed in a slit shape, and jets a wide range as a strong water flow from the slit. Is available. In addition, the plurality of second injection ports 1 having the above configuration
Numerals 1 are arranged so as to face the center of the lower surface of the main body 1, and the second injection ports 11 are arranged on the lower surface of the main body 1 in a well-balanced manner.

By the way, the leg 28 is provided on the lower surface of the main body 1 as described above. The leg 28 is provided at a position except for an extension of the second jet port 11 in the jet direction.
Bath water can be jetted from the second jet port 11 for cleaning without being disturbed by the legs 28.

When the second injection port 11 is provided on the lower surface of the main body 1, the nozzle section 4 provided on the upper part of the main body 1 is provided.
It is also possible to provide a rotary nozzle such as that described above on the lower surface of the main body 1 and provide the second nozzle 11 in the rotary nozzle. In this case, the number of the second injection ports 11 may be up to about several.

The role of the second injection port 11 is to discharge water in the other direction, while the role of the injection port 3 is to discharge water upward. That is, it is possible to clean a portion that cannot cover the region to be cleaned by the injection from the injection port 3. For example,
By injecting the bath water downward or obliquely downward from the second injection port 11, it is possible to clean the bottom of the bathtub 35, the lower portion of the side wall, the corner portion formed by the bottom and the side wall, and the like. The bath water injected downward or obliquely downward from the second injection port 11 hits the water surface in the early stage of drainage by being injected downward from the bath water surface, but the main body 1 has a bathtub 35.
When approaching the bottom surface of the bathtub 35, the bathwater can be effectively sprayed onto the side wall and the bottom surface of the bathtub 35 to wash dirt, and can be drained from the drain port of the bathtub 35.

Further, the main body 1 has a connection line 31 for connecting to the power supply unit 37.
Is very difficult to handle. For this reason, in the present embodiment, the connection wire 31 is provided on the lower surface of the main body 1 and the leg portion 28 is provided with the cord hooking portion 32 so that the connection wire 31 can be wound in the outer peripheral direction. The connection wire 31 can be wound around the cord hooking portion 32 and stored, and can be stored without any trouble such as the connection wire 31 being entangled. Therefore, in the present embodiment, the cord hooking portion 32 serves as a stopper for holding the winding state of the connection wire 31.

Next, the control circuit 52 of the power supply unit 30 according to the present invention will be described.

In FIG. 10, reference numeral 24 denotes a motor for driving the pump 5 for sucking water. The control circuit 52 includes a switching means 62 such as a power transistor, a relay, a triac, and an FET for switching driving of the motor 24, a CPU 63 which is a control means for controlling the operation of the main body 1, and a stabilization for driving the CPU 63 and the circuit. A power supply circuit 64, a start switch 54 having a timing for driving the motor 24, a display means such as a cleaning lamp 56 for displaying an operation state of the motor 24, and the like are provided.
Reference numeral 66 denotes a water level detecting means such as a float switch, which detects at a certain water level when the main body 1 reaches the lower part of the bathtub 35 (for example, at a remaining water depth of 10 cm). It is designed to be sprayed toward.

FIG. 11 shows an operation time chart of one embodiment of the present invention. When the start switch 54 is turned on, first, the upper injection mode is started, and the injection port 3 is started.
From above starts detergent rinse injection upward. When washing is performed while ejecting from the ejection port 3 while draining, the water level in the bathtub 35 gradually decreases, and the main body 1 descends accordingly. Then, when the main body 1 is located at a water level preset by the water level detecting means 66 such as a float switch, the injection of the bath water from the injection port 3 is stopped upward, and the water is stopped downward from the second injection port 11. It is controlled to inject bath water. That is, in the present embodiment, from the upper injection mode in which the main body 1 is located at the water level set in advance by the water level detection means 66 and the upper injection mode is injected above the injection port 3, the downward injection is injected below the second injection port 3. It is controlled so that it can be switched to the mode. FIG. 13A shows an upper injection state, and FIG. 13B shows a lower injection state.

When all the water in the bathtub 35 is exhausted, this is detected by the empty operation detecting means 65 or the like, and the operation of the motor 24 is stopped. For example, the degree of reduction of the current value of the motor 24 can be determined, and the empty operation detection means 65 can be constituted by the second float switch means and the like. An example of the empty operation detection means 65 for determining the degree of reduction of the current value of the motor 24 is as follows. For example, a drive current flowing through the motor 24 normally generates a load while sucking water, and a large current flows. However, if the water runs out and the water is not sucked up, the load on the motor 24 becomes lighter and the driving current becomes smaller. This is detected by a shunt resistor in the circuit, and the load is lighter than a predetermined threshold value of a comparator determined as a voltage difference, the current drops, and a signal is output to the CPU 63 when the comparator input voltage falls below the threshold value. Is the way.

The operation time chart of FIG. 12 is an application of the concept of FIG. 11, and when the start switch 54 is turned on,
First, a method of injecting bath water upward from the injection port 3 is started, and the detergent rinse injection is started upward. When the main body 1 is positioned at a predetermined water level by the water level detecting means 66, the injection from the injection port 3 is continued upward, and the injection is performed downward from the second injection port 11,
Both the upper injection mode and the lower injection mode are operated simultaneously.

The control shown in FIG. 11 or the control shown in FIG.
In order to perform such a control, a combination of a valve such as an electromagnetic valve and a water channel can be controlled as shown in FIG.
Alternatively, the control as shown in FIG. 12 can be performed.

FIG. 14 shows an arrangement position of the water level detecting means 66. FIG. 15 is an enlarged view of an example of FIG. 14, in which the lever 66b is suspended from the switch 66a, and while there is still a certain amount of water level, the lever 66b contacts the bottom surface of the bathtub 35 in advance to detect the water level. It is supposed to. In this case, a float switch or a limit switch can be used as the switch 66a.

The water level detecting means 66 is not limited to the above example, but may be a non-contact type. For example, the water level is detected by transmitting an ultrasonic wave toward the bottom of the bathtub 35 and receiving the ultrasonic wave reflected at the bottom of the bathtub 35, or a predetermined detection is performed by receiving the ultrasonic wave. It is configured by an ultrasonic sensor that forms an area, and is configured to recognize that a predetermined water level has been reached when the bottom of the bathtub exists in the detection area of the ultrasonic sensor, or to transmit and receive ultrasonic waves Various means are employed, such as an ultrasonic sensor that constantly detects the water level in the bathtub, or an optical sensor that constantly detects the water level in the bathtub by transmitting and receiving predetermined light. You can do it.

The detection of the water level by the water level detecting means 66 is not only for obtaining the start time of the injection from the second injection port 11 as described above, but also for detecting the predetermined water level by the water level detecting means 66. The control means controls the injection from the injection port 3 to be stopped after a lapse of a predetermined time. In this case, after the water level detection means 66 detects a predetermined water level, the control means may control the injection means to stop the injection from the injection port 3 when detecting a water level shallower than this water level by a certain amount. is there.

In the above embodiment, the water level detecting means 66
In the example described above, when the predetermined water level is detected, the water is injected from the second injection port 11. However, the second injection is performed after a lapse of a predetermined time from the start of the injection of the bath water from the injection port 3. Mouth 1
Control may be performed by the control means so that the injection from 1 starts. In other words, a certain time after the start of the injection of the bath water from the injection port 3, the bottom of the bathtub 35 is effectively cleaned by the injection from the second injection port 11, so that at this time Thus, the cleaning is started by starting the injection from the second injection port 11, so that the cleaning can be performed efficiently without waste. In the present embodiment, the water level detecting means 66 is not required.

Further, a control means may be provided so that the injection from the injection port 3 is stopped after a lapse of a predetermined time from the start of the injection of the bath water from the injection port 3, and in this case, the water level detection means The bath water from the injection port 3 can be automatically stopped without providing the 66.

The control means may control the injection from the injection port 3 to be stopped after a predetermined time has elapsed from the start of the injection from the second injection port 11.

Incidentally, a tank (not shown) for storing a fixed amount of bath water injected from the second injection port 11 may be provided in the main body 1. If the water drawn from the water supply port 2 by the pump 5 by driving the motor 24 always passes through this tank, when the main body 1 reaches the bottom surface of the bathtub 35, the water in this tank is discharged. It can be injected in a time lag manner. Theoretically, the larger the tank capacity is, the more the water is supplied and cleaned at the time when the main body 1 reaches the bottom of the bathtub 35 and the cleaning effect becomes maximum after the bottom is exposed. This has the merit of being able to do so.

Here, empty operation detection means 65 for detecting the presence or absence of bath water in the bath tub 35 is provided. When the empty operation detection means 65 detects that there is no bath water in the bath tub 35, If the control means controls the bath water to be sprayed from the second injection port 11, the bathtub 35
After the water in the tank is exhausted, the bottom of the bathtub 35 can be effectively washed with the bathwater stored in the tank.

FIG. 16 shows another embodiment of the present invention. In the present embodiment, the basic configuration is as shown in FIG.
Therefore, only different points will be described. That is, in the present embodiment, the motor 2
While driving at 62 by the switching means of 4, the injection pressure variable means is provided. And the injection pressure at the time of injecting bath water from the second injection port 11 can be varied. As the injection pressure variable means, it is conceivable to provide a resistance load 67 as shown in FIG. Then, the CPU 63 controls the flow of current to the motor 24 via the resistance load 67, the flow of current to the motor without the resistance load 67, or the resistance load 67 is a variable resistance. By doing so, the resistance value is controlled so as to be variable, whereby the injection pressure can be controlled by changing the voltage applied to the motor 24.

Here, the variation of the injection pressure of the bath water injected from the second injection port 11 is controlled so that the injection pressure from the second injection port 11 is reduced by the injection pressure variable means. It is. That is, washing is performed by injecting bath water from the second injection port 11, but when the water level becomes low, the injection is continued from the second injection port 11 at the same high water pressure as when the water level is high. Then, the dirt is blown off by the strong water pressure, and the dirt cannot be collected at the drain port side after the water is completely cut off. Therefore, the second injection port 1
In washing by spraying bath water from 1 and controlling the injection pressure to decrease when the water level is low, dirt is not blown off by strong water pressure, and dirt is gradually discharged to the drain port side by weak injection pressure. It can be collected.

In controlling the injection pressure from the second injection port 11 to be changed by the injection pressure variable means, the injection pressure is controlled to decrease linearly as shown in FIG. Alternatively, it is conceivable to perform control so that the pressure of the injection from the second injection port 11 gradually decreases as shown in FIG.

Further, as shown in FIG. 18, the pressure of the injection from the second injection port 11 is controlled so as to pulsate in a round wave so as to draw a sine curve, or as shown in FIG. It is conceivable to control the pressure of the injection from the second injection port 11 so as to vary in the form of an angular pulse.

[0098]

According to the first aspect of the present invention, there is provided a main body configured to be floatable in bath water, a water supply port provided at a predetermined position of the main body, and a water supply port. Equipped with an injection port for injecting water and a pump for supplying bath water from the water supply port to the injection port, the injection port is installed above the bath water surface, and injects below the injection direction of the injection port. Second
Since the injection port is provided, not only can the side wall of the bathtub be washed by injecting bath water from the injection port, but also by injecting the second injection port downward from the injection direction of the injection port, The portion below the portion to be cleaned by the injection from the injection port can be effectively cleaned, and as a result, the bathtub can be thoroughly cleaned to every corner.

According to the second aspect of the invention, in addition to the effect of the first aspect, the second injection port is configured to inject the bath water downward with respect to the bath surface. As a result, the side wall and the bottom of the bathtub below the bath surface can be effectively washed by the bath water sprayed below the bath surface from the second spray port. It can clean the bottom of the bathtub that cannot be cleaned.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the second injection port can spray the bath water obliquely downward with respect to the bath water surface. As it is constructed, the side wall and bottom of the bathtub under the bath surface can be cleaned widely, especially the bottom of the bathtub can be cleaned over a wide area and the corner between the bottom and side wall of the bathtub is also beautiful. It can be washed.

According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, a second injection port is provided on the lower surface of the main body. Therefore, it is possible to easily provide the main body with the second jet port for jetting downward.

According to the fifth aspect of the present invention, in addition to the effects of the fourth aspect of the present invention, the main body is substantially circular in plan view from below, and the plurality of second injection ports are concentric. , The second injection port can be arranged on the lower surface of the main body in a well-balanced manner, and a plurality of concentrically arranged second injection ports can be used to cover a wide range of the side wall and bottom below the water surface of the bathtub. It can be washed evenly.

According to the sixth aspect of the invention, in addition to the effect of the fifth aspect of the present invention, since the second injection ports are arranged at equal intervals, a plurality of second injection ports are arranged. The bath water sprayed from the mouth can be sprayed at regular intervals, and the water can be washed evenly and effectively.

According to the seventh aspect of the present invention, in addition to the effects of the fifth or sixth aspect of the present invention, since the second injection ports are each formed in a slit shape, 2
Bath water can be sprayed from a slit-like portion as a strong water flow over a wide range, and the cleaning effect can be improved.

According to the invention described in claim 8, in addition to the effects of the invention described in claim 5 or 6, the second injection ports are arranged so as to face the center of the lower surface of the main body. Because of this, the second injection port can be arranged in a well-balanced manner on the lower surface of the main body, so that a wide range of cleaning can be effectively performed centering on the bath water cleaning device.

According to the ninth aspect of the present invention, in addition to the effects of the first aspect, a water level detecting means 66 for detecting the water level in the bathtub is provided. Since the water level detecting means 66 is provided with control means for controlling the injection from the second injection port to be started when it is detected that the predetermined water level has been reached, the water level detecting means 66 When the injection from the second injection port starts when the predetermined water level is reached, the injection from the second injection port reaches and the bottom of the bathtub can be effectively cleaned before the injection is started. The cleaning can be performed efficiently and inexpensively at low energy cost with no waste.

In the invention according to claim 10,
In addition to the effects of the ninth aspect, the water level detecting means 66 has a switch and a lever extending to the bottom of the bathtub, and operates the switch when the lever reaches the bottom of the bathtub. Therefore, the water level can be reliably detected with a simple structure in which the lever reaches the bottom of the bathtub.

Further, according to the eleventh aspect of the present invention,
In addition to the effect of the tenth aspect of the present invention, since the switch is a float switch, the switch can be configured with a simple configuration called a float switch.

In the invention according to claim 12,
In addition to the effect of the tenth aspect of the present invention, since the switch is a limit switch, the switch can be configured with a simple configuration called a limit switch.

Further, in the invention according to claim 13,
In addition to the effect of the ninth aspect, the water level detecting means 66 is configured to detect the water level by transmitting ultrasonic waves toward the bottom of the bathtub and receiving ultrasonic waves reflected at the bottom of the bathtub. Therefore, the water level can be easily detected in a non-contact manner by ultrasonic waves.

In the invention according to claim 14,
In addition to the effect of the above-mentioned ninth aspect, in addition to the effect of the ninth aspect, the water level detecting means 66 is constituted by an ultrasonic sensor which forms a predetermined detection area by receiving ultrasonic waves, and the bottom of the bathtub is provided in the detection area of the ultrasonic sensor. Is configured to recognize that the water level has reached a predetermined level when the water level exists, so that the ultrasonic sensor can detect the water level reliably without contact.

In the invention according to claim 15,
In addition to the effect of the invention described in the ninth aspect, the water level detecting means 66 is an ultrasonic sensor that constantly detects the water level of the bathtub by transmitting and receiving ultrasonic waves. The water level can be detected.

In the invention according to claim 16,
In addition to the effects of the ninth aspect of the present invention, since the water level detecting means 66 is an optical sensor that constantly detects the water level of the bathtub by transmitting and receiving predetermined light, the water level can be easily measured in a non-contact manner by the optical sensor. Can be detected.

Further, in the invention according to claim 17,
In addition to the effects of the invention described in any one of the ninth to sixteenth aspects, a control means for controlling the injection from the injection port to be stopped when the water level detection means 66 detects a predetermined water level is provided. Therefore, when the predetermined water level is reached, the injection from the injection port is stopped, so that the possibility of the empty operation can be prevented.

In the invention according to claim 18,
In addition to the effects of the invention as set forth in any one of claims 9 to 16, in addition, control is performed such that the injection from the injection port is stopped after a predetermined time has elapsed after the water level detection means 66 has detected a predetermined water level. Since the control means is provided, it is possible to prevent the possibility of an empty operation.

In the invention according to claim 19,
In addition to the effects of the invention described in any one of the ninth to sixteenth aspects, when the water level detecting means 66 detects a water level that is shallower by a certain amount than a predetermined water level, the injection from the injection port is stopped. Since the control means for controlling is provided, it is possible to prevent the possibility of an empty operation.

In the invention according to claim 20,
In addition to the effects of the invention according to any one of claims 1 to 8, the injection from the second injection port starts after a lapse of a predetermined time from the start of injection of bath water from the injection port. Control means is provided for controlling the discharge of bath water from the injection port.
In this state, the bottom of the bathtub can be effectively cleaned by the injection from the injection port, so that at this point, the injection is started from the second injection port for cleaning. And it can be efficiently cleaned.

Further, in the invention according to claim 21,
In addition to the effect of the invention described in claim 20, in addition to the control means for controlling the injection from the injection port to stop after a predetermined time has elapsed from the start of the injection of bath water from the injection port, It is possible to prevent the possibility of an empty operation.

Further, in the invention according to claim 22,
In addition to the effect of the invention described in claim 20, in addition to the control means for controlling the injection from the injection port to stop after a predetermined time has elapsed from the start of the injection from the second injection port, When the water level becomes low, it becomes possible to prevent the empty operation in relation to the second injection port, and since the lower part of the bathtub is washed by injection from the second injection port, the water level is already reduced when the water level is lowered. This eliminates unnecessary spraying by stopping the washing of the upper part of the washed bathtub.

[0120] In the invention according to claim 23,
In addition to the effects of the invention according to any one of claims 9 to 22, there is provided empty operation detection means for detecting the presence or absence of bath water in the bathtub, and there is no bath water in the bathtub by the empty operation detection means. When detecting that, the control means for controlling the injection from the second injection port to stop is provided,
In spraying from the second injection port to the bottom of the bathtub for cleaning, the bottom of the bathtub can be effectively cleaned immediately before the empty operation, and the empty operation can be prevented.

In the invention according to claim 24,
In addition to the effect of the invention described in claim 23, since the empty operation detecting means is configured to detect the presence or absence of the inside of the bathtub by measuring the electric variable of the pump drive, the electric power of the pump drive is detected. It is possible to detect empty driving by simple means of measuring a variable.

In the invention according to claim 25,
In addition to the effect of the invention described in claim 23, since the empty operation detection means is constituted by a float switch, it is possible to detect empty operation with a simple configuration of a float switch.

In the invention according to claim 26,
In addition to the effects of the invention according to any one of claims 1 to 25, a tank for storing a fixed amount of bath water injected from the second injection port is provided, so that the bath tub runs out. The bottom of the tub can be effectively washed, and the hair and dirt remaining on the bottom of the bathtub without being discharged from the drain can be washed away from the drain.

In the invention according to claim 27,
In addition to the effects of the invention described in claims 1 to 8,
A tank for storing a fixed amount of bath water injected from the second injection port is provided, and empty operation detection means for detecting the presence or absence of bath water in the bath tub is provided. The control means for injecting the bath water in the tank from the second injection port when it is detected that there is no water is provided, so that after the water in the bath tub runs out, the bath water stored in the tank is more effective. Can wash the bottom of the bathtub,
As a result, the hair and dirt remaining at the bottom of the bathtub without being discharged from the drain can be reliably washed out from the drain.

In the invention according to claim 28,
In addition to the effect of the invention described in any one of claims 1 to 27, an injection pressure variable means for varying the pressure of the injection from the second injection port is provided, so that the second pressure can be changed according to the cleaning stage.
By changing the pressure of the injection from the injection port, effective cleaning can be performed.

In the invention according to claim 29,
In addition to the effect of the invention described in claim 28, since the injection pressure variable means controls to change the driving force of the pump, the injection pressure can be changed by a simple means of changing the driving force of the pump. And effective cleaning.

In the invention according to claim 30,
In addition to the effect of the invention described in claim 28 or claim 29, since the injection pressure variable means controls the pressure of the injection from the second injection port to decrease, when the water level decreases, the injection The pressure is reduced, so that the dirt is not blown off with a strong water pressure, and the dirt can be collected at the drain port side with a low jet pressure and can be smoothly discharged from the drain port.

Further, in the invention according to claim 31,
In addition to the effect of the invention according to claim 30, the injection pressure variable means controls the pressure of the injection from the second injection port to decrease linearly. It is possible to continuously reduce the injection pressure from the drain according to the water level, and to smoothly collect dirt on the drain port side and discharge it from the drain port as the water level decreases.

In the invention according to claim 32,
In addition to the effect of the invention according to claim 30, since the injection pressure variable means controls the pressure of the injection from the second injection port to decrease stepwise, the second injection port It is possible to gradually decrease the injection pressure from the drain according to the water level, and to smoothly collect dirt on the drain port side and discharge it from the drain port as the water level decreases.

In the invention according to claim 33,
In addition to the effect of the invention described in claim 28 or claim 29, since the injection pressure variable means controls the pressure of the injection from the second injection port to pulsate, the injection pressure variable means controls the injection pressure from the second injection port. The bath water is pulsated and jetted, so that effective cleaning can be performed.

In the invention according to claim 34,
In addition to the effects of the invention described in claim 28 or claim 29, since the injection pressure variable means controls the pressure of the injection from the second injection port to change in a pulse shape, The bath water from the injection port 3 is jetted in a pulse shape, so that effective cleaning can be performed.

In the invention according to claim 35,
In addition to the effects of the invention according to any one of claims 1 to 34, the water supply port is provided on the lower surface of the main body.
Even if the water level in the bathtub becomes low, water can be reliably supplied from a water supply port provided on the lower surface of the main body and sprayed as cleaning water. As a result, cleaning can be performed reliably even when the water level becomes low.

In the invention according to claim 36,
In addition to the effects of the invention described in claim 35, a filter and a filter frame for holding the filter are provided at the water supply port, so that the hair and dust are reliably collected by the filter so as not to enter the inside. It is also possible to prevent hair or debris from being contained in the bath water injected from the injection port or the second injection port. As a result, hair and debris adhere to the portion washed with the washing water. It does not remain.

In the invention according to claim 37,
In addition to the effect of the invention described in claim 36, since the filter frame is provided detachably at the water supply port, when the filter is clogged, it is easy to remove the filter frame for cleaning or replacement. It can be done easily.

In the invention according to claim 38,
In addition to the effects of the invention according to any one of claims 35 to 37, since the second injection ports are arranged so as to surround the water supply port, a plurality of second injection ports and water supply ports are arranged. Can be rationally arranged on the lower surface of the main body.

In the invention according to claim 39,
In addition to the effect of the invention according to any one of claims 35 to 38, since the water supply port and the second injection port are provided with legs in the main body so as not to contact the bottom of the bathtub, When the water level drops and the main body touches the bottom of the bathtub, the legs can stably contact the ground, and in this case, the water injection port and the second injection port are not blocked, and the injection from the second injection port is performed. Then the bottom of the bathtub can be washed.

Further, in the invention according to claim 40,
In addition to the effects of the above-mentioned claim 39, in addition to the effects of
It is provided so as not to extend on the extension line of the injection direction of the injection port, so that the bath water is injected from the second injection port without being disturbed by the legs despite the provision of the legs. And effective cleaning.

In the invention according to claim 41,
In addition to the effects of the invention according to any one of claims 1 to 40, a connection line for power supply connection is provided on the main body so that power is supplied from outside the main body to drive the pump. The pump can be driven with a simple structure by power supply from the outside.

In the invention according to claim 42,
In addition to the effect of the invention described in claim 41, since the connection line is provided on the lower surface of the main body, the connection line can be kept out of the way.

Further, in the invention according to claim 43,
In addition to the effect of the invention described in claim 42, since the main body is provided with a leg portion on which the connection wire can be wound, the connection wire can be wound around the leg portion when not in use, so that the body can be made compact.
It is easy to carry and store without being disturbed by the connection line.

In the invention according to claim 44,
In addition to the effect of the invention described in claim 43, since the leg portion is provided with the stopper portion for holding the winding state of the connection wire,
The connection wire wound around the leg can be prevented from coming apart.

In the invention according to claim 45,
In addition to the effects of the invention as set forth in any one of claims 1 to 44, a detergent tank is provided on a path from a pump to an injection port, and a mixing section for mixing bath water and detergent is provided. Is sprayed from the injection port, so that the mixed liquid in which the detergent is mixed can be injected from the injection port to clean the inside of the bathtub with the detergent effectively and neatly.

In the invention according to claim 46,
In addition to the effects of the invention described in any one of claims 1 to 45, the detergent tank also serves as the mixing section, so that the structure is simplified and the space can be saved.

In the invention according to claim 47,
In addition to the effects of the above-mentioned claim 46, since a detergent inlet is provided in the detergent tank and a cap is detachably provided on the detergent inlet, the cap is opened to supply the detergent from the detergent inlet. To facilitate the supply of the detergent.

In the invention according to claim 48,
In addition to the effects of the invention according to any one of claims 1 to 47, a branch path branched from a path from the pump to the injection port is provided, and the branch path is formed to reach the second injection port. Thus, with a simple configuration, the bath water can be injected from the second injection port through the branch path from the pump.

In the invention according to claim 49,
In addition to the effect of the invention described in claim 48, since the switching valve is provided between the path from the pump to the injection port and the branch path, the injection from the injection port and the second injection are performed by switching the switching valve. By switching between injection from the mouth, effective cleaning can be performed.

In the invention according to claim 50,
In addition to the effects of the above-mentioned claim 49, since the on-off valve is provided in the branch path, injection and non-injection from the second injection port can be performed by operating the on-off valve.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main body of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a bottom view of the above.

FIG. 5 is a sectional view of the same.

FIG. 6 is a cross-sectional view of a water-sealed portion of the motor shaft according to the first embodiment.

FIG. 7 (a) is an explanatory view showing a case where air remains in the pump case immediately after sucking it up, and FIG. 7 (b) is an explanatory view showing a case where a rectifying rib is provided.

FIGS. 8A and 8B are explanatory diagrams showing the order of supplying detergent to the detergent tank according to the first embodiment.

FIG. 9 is a cross-sectional view of a part where the nozzle unit is mounted rotatably.

FIG. 10 is a control block diagram of one embodiment of the present invention.

FIG. 11 is a time chart of the embodiment of the above;

FIG. 12 is a time chart of another embodiment of the above.

FIGS. 13A and 13B are explanatory diagrams respectively showing an injection from an injection port and an injection from a second injection port.

FIG. 14 is an explanatory view in which a water level detecting means 66 is provided in the main body of the above.

FIG. 15 is an enlarged explanatory diagram of the above.

FIG. 16 is a control block diagram of another embodiment of the present invention.

FIG. 17 is a graph showing an example in which the injection pressure from the second injection port is varied.

FIG. 18 is a graph showing another example in which the injection pressure from the second injection port is varied.

FIG. 19 is a graph showing still another example in which the injection pressure from the second injection port is varied.

FIG. 20 is a graph showing another example in which the injection pressure from the second injection port is varied.

FIG. 21 is a piping configuration diagram of the above.

FIG. 22 is another piping configuration diagram of the above.

FIG. 23 is still another piping configuration diagram of the above.

FIG. 24 is still another piping configuration diagram of the above.

FIG. 25 is still another piping configuration diagram of the above.

FIG. 26 is still another piping configuration diagram of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Water supply port 3 Injection port 5 Pump 6 Detergent tank part 8 Mixing part 10 Water surface 11 Second injection port 24 Motor 28 Leg part 31 Connection line 35 Bathtub

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshihisa Kinzuna 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. Inside

Claims (50)

[Claims] 1. A main body configured to be able to float in bath water, a water supply port provided at a predetermined position of the main body, a jet port for jetting water supplied from the water supply port, and a jet port from the water supply port. A pump for supplying bath water to the water, the outlet is provided above the surface of the bath water, and a second outlet for spraying below the direction of injection of the outlet is provided. Bathtub cleaning device. 2. The bathtub cleaning apparatus according to claim 1, wherein the second jet port is configured to jet bathwater downward with respect to the bathwater surface. 3. The bathtub cleaning device according to claim 2, wherein the second jet port jets the bath water obliquely downward with respect to the bath water surface. 4. The bathtub cleaning device according to claim 1, wherein the second injection port is provided on a lower surface of the main body. 5. The bathtub cleaning apparatus according to claim 4, wherein the main body has a substantially circular shape in plan view from below, and a plurality of second injection ports are arranged concentrically. 6. The bathtub cleaning device according to claim 5, wherein the second injection ports are arranged at equal intervals. 7. The bathtub cleaning apparatus according to claim 5, wherein each of the second injection ports is formed in a slit shape. 8. The bathtub cleaning device according to claim 5, wherein the second injection ports are arranged so as to face the center of the lower surface of the main body. 9. A water level detecting means 6 for detecting a water level in a bathtub.
6. A control means for controlling the start of injection from the second injection port when the water level detection means detects that the water level has reached a predetermined water level. The bathtub cleaning apparatus according to any one of claims 1 to 8. 10. The water level detecting means 66 has a switch and a lever extending to the bottom of the bathtub, and detects a predetermined water level by operating the switch when the lever reaches the bottom of the bathtub. The bathtub cleaning device according to claim 9, wherein the bathtub cleaning device is configured as follows. 11. The bathtub cleaning device according to claim 10, wherein the switch is a float switch. 12. The bathtub cleaning device according to claim 10, wherein the switch is a limit switch. 13. The water level detecting means 66 is configured to transmit an ultrasonic wave toward the bottom of the bathtub and receive the ultrasonic wave reflected at the bottom of the bathtub to detect the water level. Item 10. A bathtub cleaning device according to item 9. 14. The water level detecting means 66 is constituted by an ultrasonic sensor which forms a predetermined detection area by receiving an ultrasonic wave, and when the bottom of the bathtub exists in the detection area of the ultrasonic sensor, a predetermined water level is detected. The bathtub cleaning device according to claim 9, wherein the bathtub cleaning device is configured to recognize that the temperature has reached. 15. The bathtub cleaning device according to claim 9, wherein the water level detection means 66 is an ultrasonic sensor that constantly detects the water level of the bathtub by transmitting and receiving ultrasonic waves. 16. The bathtub cleaning device according to claim 9, wherein the water level detection means 66 is an optical sensor that constantly detects the water level of the bathtub by transmitting and receiving predetermined light. 17. The apparatus according to claim 9, further comprising control means for controlling so as to stop injection from the injection port when the water level detection means detects a predetermined water level. The bathtub cleaning device described in the crab. 18. A control device for controlling a stop of the injection from the injection port after a lapse of a predetermined time from the detection of a predetermined water level by the water level detection means 66. Item 18. A bathtub cleaning device according to any one of Items 16. 19. The apparatus according to claim 9, further comprising control means for controlling so as to stop the injection from the injection port when the water level detecting means detects a water level which is shallower by a certain amount than a predetermined water level. The bathtub cleaning device according to any one of claims 16 to 16. 20. Control means for controlling the injection of the bath water from the injection port to start so that the injection from the second injection port starts after a lapse of a predetermined time from the start of the injection of the bath water. The bathtub cleaning device according to any one of claims 1 to 8, wherein 21. A control means for controlling the injection of the bath water from the injection port to stop after a lapse of a predetermined time from the start of the injection of the bath water from the injection port.
The bathtub cleaning apparatus according to 0. 22. Control means for controlling the injection from the injection port to stop after a predetermined time has elapsed from the start of the injection from the second injection port.
The bathtub cleaning apparatus according to 0. 23. An empty operation detecting means for detecting the presence or absence of bath water in the bathtub, and when the empty operation detecting means detects that there is no bath water in the bathtub, the injection from the second injection port is stopped. 23. The bathtub cleaning apparatus according to claim 9, further comprising control means for controlling the bathtub cleaning. 24. The bathtub cleaning device according to claim 23, wherein the empty operation detection means is configured to detect the presence or absence of the inside of the bathtub by measuring an electric variable of the pump drive. 25. The bathtub cleaning apparatus according to claim 23, wherein the empty operation detection means is constituted by a float switch. 26. The bathtub cleaning apparatus according to claim 1, further comprising a tank for storing a fixed amount of bathwater injected from the second injection port. 27. A tank for storing a fixed amount of bath water injected from the second injection port is provided, and empty operation detecting means for detecting the presence or absence of bath water in the bath tub is provided. When it detects that there is no bath water inside,
The bathtub cleaning device according to any one of claims 1 to 8, further comprising control means for jetting bath water in the tank from the second jet port. 28. An apparatus according to claim 1, further comprising an injection pressure varying means for varying an injection pressure from the second injection port.
28. The bathtub cleaning device according to claim 27. 29. The bathtub cleaning device according to claim 28, wherein the injection pressure variable means controls the driving force of the pump to be changed. 30. The bathtub cleaning device according to claim 28, wherein the injection pressure variable means controls the injection pressure from the second injection port to decrease. 31. The bathtub cleaning apparatus according to claim 30, wherein the injection pressure variable means controls the pressure of the injection from the second injection port to decrease linearly. 32. The bathtub cleaning apparatus according to claim 30, wherein the injection pressure variable means controls the pressure of the injection from the second injection port to decrease stepwise. 33. The bathtub cleaning apparatus according to claim 28, wherein the injection pressure variable means controls the pressure of the injection from the second injection port to pulsate. 34. The bathtub cleaning apparatus according to claim 29, wherein the injection pressure variable means controls the pressure of the injection from the second injection port to change in a pulsed manner. . 35. The bathtub cleaning apparatus according to claim 1, wherein a water supply port is provided on a lower surface of the main body. 36. The bathtub cleaning device according to claim 35, wherein a filter and a filter frame for holding the filter are provided at the water supply port. 37. The bathtub cleaning apparatus according to claim 36, wherein the filter frame is detachably provided at the water supply port. 38. The second injection port is arranged so as to surround a water supply port.
The bathtub cleaning device according to any one of the above. 39. The apparatus according to claim 35, wherein the main body is provided with legs so that the water supply port and the second injection port do not contact the bottom of the bathtub. Bathtub cleaning device. 40. The apparatus according to claim 3, wherein the leg is provided so as not to extend on an extension of the injection direction of the second injection port.
9. The bathtub cleaning device according to 9. 41. The power supply according to claim 1, wherein a power supply connection line is provided on the main body so that power is supplied from outside the main body to drive the pump. Bathtub cleaning device. 42. The bathtub cleaning device according to claim 41, wherein the connection line is provided on a lower surface of the main body. 43. The bathtub cleaning device according to claim 42, wherein the body is provided with a leg portion on which a connection wire can be wound. 44. The bathtub cleaning device according to claim 43, wherein the leg portion is provided with a stopper portion for holding a winding state of the connection wire. 45. A method according to claim 1, wherein a detergent tank is provided on a path from the pump to the injection port, and a mixing section for mixing bath water and the detergent is provided, and the mixed liquid is injected from the injection port. Item 45. The bathtub cleaning device according to any one of Items 44 to 44. 46. The bathtub cleaning device according to claim 1, wherein the detergent tank portion also serves as a mixing portion. 47. The bathtub cleaning device according to claim 46, wherein a detergent inlet is provided in the detergent tank portion, and a cap is detachably provided on the detergent inlet. 48. The apparatus according to claim 1, wherein a branch path is provided which branches from a path from the pump to the injection port, and the branch path is formed so as to reach the second injection port. The bathtub cleaning device described in the crab. 49. The bathtub cleaning apparatus according to claim 48, wherein a switching valve is provided between a path from the pump to the injection port and a branch path. 50. The bathtub cleaning device according to claim 49, wherein an on-off valve is provided in the branch path.