JPH08923A - Safety device of bathtub hot water purifier - Google Patents

Abstract

PURPOSE:To keep safety by preventing electric trouble such as an electric leak or an electric shock generated when the main body of the hot water purifier arranged on the edge of a bathtub falls to the bathtub. CONSTITUTION:A holder 18 having a lead switch 15 received therein by a magnet is pressed and attached to the outer surface of the rear plate 14 of a device main body 4 having various purifying treatment machineries received therein in a detachable manner with a spring 20 while the holder is held to a wall with a chain 22 and a safety cut-off circuit provided with the lead switch is connected to an electric leak breaker. When the device main body falls or slides from the edge of a bathtub to become ready to fall and detached from an arranging position, the lead switch 15 is operated to open the safety cut-off circuit and this circuit operates the electric leak breaker to cut off a power supply.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub apparatus, and more particularly, to a bathtub hot water purifying apparatus that keeps the hot water in the bathtub clean by filtration or the like to keep it clean. The present invention relates to a safety device for a so-called 24-hour bath device that is stored in a bathroom and installed in a bathroom.

[0002]

2. Description of the Related Art Recently, hot water in a bathtub is sucked up by a circulation pump, dirt is filtered by a filter device, heated by a heater, and further sterilized by ozone so that the hot water is constantly kept clean and can be bathed for 24 hours at any time. A bath water purifying device as a so-called 24-hour bath device has been developed and widely used.

As shown in FIG. 6, this bathtub hot water purifying device is a hot water suction device for pumping hot water 2 in a bathtub 1 into a device body 4 that integrally houses various devices for purifying hot water. The pipe 3 and the spout pipe 9 for spouting the hot water after the cleaning treatment to the bathtub 1 again are configured.

A filter tank 5 filled with various kinds of filter materials such as activated carbon and barley stone, a circulation pump 6 for forcibly circulating hot water, a heater 7 for keeping the hot water at an appropriate temperature, etc. are connected in series to the apparatus main body 4. The hot water pipe 3 is connected to the hot water inlet of the filtration tank 5, and the hot water pipe 9 is connected to the hot water outlet of the heater 7.

A prefilter 10 for removing large dirt in advance is attached to the tip of the hot water pipe 3, and a jet nozzle 11 is attached to the tip of the hot water pipe 9.

Further, an intake pipe 12 having a solenoid valve 13 at its tip is attached to the jet nozzle 11, and an ozonizer 8 for ozone-forming air is provided in the middle of the intake pipe 12.
Is attached.

In the above apparatus, the hot water 2 in the bathtub 1 is sucked up by the operation of the circulation pump 6 while removing large dirt from the hot water pipe 3 by the prefilter 10, enters the apparatus main body 4, and is first filtered by the filtration tank 5. Then, after being heated by the heater 7, it is jetted again into the bathtub 1 from the jet nozzle 11 at the tip of the spout tube 9.

At this time, if the solenoid valve 13 is closed, the hot water is jetted from the jet nozzle 11 in a normal state, but if the solenoid valve 13 is open, it is sucked from the intake pipe 12 and the hot water is discharged. If the jet stream mixed with air is jetted to form a bubble bath and the ozonizer 8 is also operating, the hot water mixed with the air that has been ozonized by the ozonizer 8 is jetted into the bathtub 1 and the hot water 2 is ozone. Be sterilized.

In the bathtub cleaning apparatus as described above, the apparatus main body 4 is placed in a relatively stable proper place in the bathroom such as a bay window or floor when the bathroom is wide, but when the bathroom is narrow. As shown in FIG. 5, it is often mounted on the edge of the bathtub 1.

When the apparatus main body is installed on the edge of the bathtub, various fixtures such as chains, strings, and hooks are used to prevent the apparatus from tipping over and falling into the bathtub.

However, since it is unstable no matter how firmly it is fixed, there is a risk that it will fall over and fall into the bathtub if it shakes significantly due to an earthquake or the like.

Should the device body fall down and fall into the bathtub, the device body itself or the bathtub may be damaged, but further electric leakage may occur, or an electric accident such as electric shock to a bather may occur. I am worried about getting up.

In order to prevent electric power when such a device body falls into the bathtub, the power source of the device may be lowered by using an insulating transformer. In this case, However, since the device has a heater, the output of the power source is large, and as a result, a large transformer is required.

For this reason, recently, in addition to the provision of an earth leakage breaker for detecting and operating an electric leakage, an overturn switch such as a mercury switch for detecting an overturn is installed as a safety switch in the main body of the apparatus. A device has also been developed in which a 100V power source can be used as it is by providing a fall safety device that tilts the main body at a predetermined angle when it falls and shuts off the power when the fall switch operates.

[0015]

However, there are various states in which the apparatus body falls into the bathtub, and in the case of the conventional safety device which detects the fall of the apparatus body by falling, the apparatus body falls over. However, if the user slips down the edge and falls vertically into the bathtub, the fall switch does not work, so the safety device does not work.

The present invention solves the above-mentioned drawbacks of the prior art, accurately detects this abnormality even if the apparatus body is about to fall into the bathtub, and can quickly shut off the power supply. It is an object of the present invention to provide a bath water purifying device having such a safety device.

[0017]

That is, according to the present invention, hot water in a bathtub is pumped from a hot water pipe, a filtering device, a circulation pump,
In a bath water purifying device that circulates a cleaning process in the device body that houses various cleaning devices such as a heater and a sterilizer together and sprays the cleaned hot water from the hot water pipe to the bathtub again, A drop switch was installed on the back plate of the device body placed on the edge of the bath to detect the fall of the device body into the bath and to operate, and to form a safety shutoff circuit that shuts off the power via the earth leakage breaker. A safety device for a bathtub water purifying device, characterized in that the drop switch detects the detachment from the installation position of the device body and operates directly to open and close the safety cutoff circuit, such as a lead switch or a micro switch. Is a safety device for the bathtub water purifying device.

[0018]

The present invention is constructed as described above, and the safety shutoff circuit for shutting off the power supply of the earth leakage breaker is provided with a drop switch for detecting the fall into the bathtub of the main body of the apparatus and operating the drop switch. If the device body falls over and falls, or if it slides down the edge and falls vertically, it will be detected immediately when it is about to fall into the bath regardless of the fall state. As a result, the earth leakage breaker operates and the power is cut off to keep safety.

Further, the apparatus body always moves out of the installation position when it falls into the bathtub, whether it falls down in a fallen state or slides down the edge and falls vertically, so that the lead switch or micro switch is used as a drop switch. If a detachment switch that can detect the detachment of the apparatus body from the installation position is used, the fall can be detected without fail.

Moreover, since the disconnection switch is provided in the safety circuit and directly opens and closes the circuit to operate the earth leakage breaker,
If the device body falls into the bathtub from the installation position, the magnetic force changes when the lead switch is used and the switch operates, and when the microswitch is used, the push switch operates. The pressure changes and the switch operates, and the power can be shut off immediately and accurately.

[0021]

【Example】

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention as a perspective view, in which 15 is attached to a back plate 14 made of a non-magnetic material such as plastic of the device body 4, and the device body 4
This is a lead switch that is a drop switch that detects when the water drops into the bathtub.

As shown in FIG. 2 as a partial cross-sectional view, the lead switch 15 is attached so as to function as a release switch that operates by accurately detecting the detachment from the installation position toward the bath.

The reed switch 15 is composed of a magnet switch 16 and a magnet 17 which are turned on and off when the magnets come close to or move away from each other, and a magnet 17 is provided on the inner surface of the non-magnetic back plate 14 at a predetermined position. The net switch 16 is fixed and attached.
The magnet 17 is detachably attached to the outer surface facing the.

The method of attaching the magnet 17 to the back plate 14 will be described. A holder pressing spring 20 is attached to the outer surface of the back plate 14 at a predetermined position using a set screw 21, while the magnet 17 is made of plastic. It is stored in the magnet holder 18 of
The magnet holder 18 accommodating 7 is detachably attached to the outer surface of the back plate 14 while being pressed by the holder pressing spring 20.

Further, the magnet holder 18 has a mounting hole 1
9 is provided, and the other end of the chain 22 fixed at one end to the wall 23 of the bathroom is attached to the mounting hole 19.

When the reed switch 15 is attached to the apparatus body 4 in this manner, the chain 22 is placed so that it can be stretched when the apparatus body 4 is in a predetermined position. If it moves a little in the opposite direction, that is, in the direction toward the bathtub and moves away from the installation position, the magnet holder 18 accommodating the magnet 17 is immediately disengaged from the holder pressing spring 20.

Therefore, if the lead switch 15 is detached from the installation position when the device body 4 falls or slides and falls into the bath, the magnet switch 17 is separated from the magnet switch 16 and the switch operates. Body 4
It comes to function as a separation switch that detects the movement of separation toward the bathtub.

In this way, when the lead switch 15 is used as the separation switch, it is divided into the magnet switch 16 and the magnet 17 on the inside and outside of the apparatus main body 4.
Since and can be attached separately, there is no need to consider waterproofing of the attachment holes, which is convenient.

Next, a second embodiment will be described with reference to FIG.

Reference numeral 24 denotes a micro switch, which is composed of a spring switch 25 that opens and closes depending on the presence of a pressing force and a pressing button 26, and is attached to the outer surface of the back plate 14 of the apparatus body 4.

The apparatus main body 4 in which the micro switch 24 is attached to the back plate 14 is installed on the wall 23 of the bathroom by pressing the push button 26 via the push rod 27 as necessary and closing the spring switch 25. .

When the apparatus body 4 installed in this way falls or slips and falls into the bathtub, when it moves toward the bathtub and separates from the installation position, the pressing force of the pressing button 26 weakens and the spring switch 25 Is in the open state and functions as a release switch.

Next, the power cutoff circuit in the case where the apparatus main body is provided with the detachment switch for detecting the detachment from the installation position by moving toward the bathtub will be described with reference to FIG.

Reference numeral 28 is a power supply plug, and a power supply line 29 for supplying a commercial power supply is connected to the apparatus main body 4 via an earth leakage breaker 30 with a safety cutoff circuit.

The device body 4 has a lead switch 1 described above.
5 or a micro switch 24, which is activated when the apparatus body 4 moves from the installation position toward the bathtub and is detected to be detached, and operates when the apparatus body 4 is tilted by a predetermined angle or more. Detects various abnormalities such as the overturned switch 32 attached to the circuit board, the overheated switch 33 that operates when the thermistor 34 detects an abnormal temperature rise of heat-generating components such as the heater and the motor, which are provided in the device body 4. A safety switch is provided to shut off the power and ensure safety.

In addition to the above-mentioned safety switch, if necessary, a safety switch that operates by detecting an abnormal increase in humidity in the apparatus main body 4, water leakage and other abnormal phenomena affecting the safety of the apparatus are added. A safety cutoff circuit 35 is formed by connecting the safety switches in series and connected to the leakage cutoff circuit 36 of the leakage breaker 30.

Next, the earth leakage breaker circuit 36 for shutting off the power source when the earth leakage breaker 30 is leaked will be described.

The earth leakage breaker circuit 36 includes a relay switch 37 having an operating coil 38 for cutting off the power supply to the power supply line 29, a current transformer 39 for detecting earth leakage, and energizing the coil 38 to operate the relay switch 37. Switch operating transistor 40 and switch operating transistor 4
Transistor control IC 41 for controlling 0 operation
It is configured by sequentially deploying.

Reference numeral 42 is a safety control power supply circuit which forms a power supply for controlling the earth leakage breaker circuit 36. This safety control power supply circuit 42 is connected to a branch power supply line 43 branched from the power supply line 29 to the relay switch 37 on the power supply side. A transformer 44 for generating an electromotive force of a predetermined voltage, a rectifying diode 46 for rectifying the electromotive force generated by the transformer 44 into a direct current, a rectifier circuit 45 provided with a capacitor 47, and a photocoupler 48 operating with a direct current of a predetermined voltage 48. The photocoupler 48 includes a current transformer 39 and a transistor control IC of the leakage cutoff circuit 36 described above.
It is connected to 41.

Earth leakage breaker 30 configured as described above
On the other hand, the safety cutoff circuit 35 is connected to the rectifier circuit 45 of the safety control power supply circuit 42 to form a closed circuit integrated with the photocoupler 48, and further at the connection point between the safety cutoff circuit 35 and the rectifier circuit 45. The ground wire 49 is connected.

Next, the operation of the earth leakage breaker 30 connected to the safety cutoff circuit 35 to cut off the power will be described.

First, there is no leakage in the power line 29,
Moreover, the case where there is no abnormality in the apparatus main body 4 and all the safety switches such as the release switch 31 such as the lead switch 15 or the micro switch 24, the falling switch 32, the overheat switch 33 and the like are closed without operating will be described. .

In this case, when the power plug 28 is inserted into the outlet, an electromotive force of a predetermined voltage is first generated in the transformer 44 of the safety control power supply circuit 42 of the earth leakage breaker 30, and the generated electromotive force of the rectifier circuit 45. Rectifying diode 46
Is converted into a smooth DC by the capacitor 47 and the capacitor 47.

In this case, since the safety cutoff circuit 35 to which the photocoupler 48 is connected is closed by closing all the switches 31, 32, 33, the direct current from the rectifier circuit 45 does not flow to the ground line 49 and the photocoupler 48 does not flow. And outputs an ON signal to the transistor control IC 41 of the earth leakage breaker circuit 36.

Further, since no current flows through the power supply line 29 and no leakage has occurred, the current transformer 39 also outputs an ON signal to the transistor control IC 41.

When the ON signal is input from the photocoupler 48 and the current transformer 39, the transistor controlling IC 41 outputs an ON signal to the switch operating transistor 40, and a current flows through the coil 38 to cause the relay switch 37 to operate.
Is closed and power is supplied to the apparatus main body 4 from the power supply line 29.

Next, a case where the apparatus body 4 placed on the edge is about to fall into the bathtub 1 will be described.

In this case, the release switch 31 such as the lead switch 15 or the micro switch 24 attached to the back plate 14 of the apparatus body 4 immediately opens to detect an abnormality.

When the release switch 31 is opened, the safety shutoff circuit 3
5, the safety cutoff circuit 35 is connected through the rectifier circuit 45, and the safety control power supply circuit 42 is opened.
DC flows from the source to the ground line 49, and the photocoupler 48 is turned OFF without inputting DC.

As a result, since the transistor controlling IC 41 is not leaked, the signal from the current transformer 39 is ON, but the signal from the photocoupler 48 is OFF.
Then, the output of the signal to the switch operating transistor 40 is turned off, no current flows through the coil 38, the relay switch 37 is opened, and the power supply from the power supply line 29 to the apparatus main body 4 is cut off.

In addition, when the device body 4 falls,
Is detected to open the switch, or the overheated switch 33 detects abnormal overheating of a heat-generating component such as a motor or a heater to open the switch, so that another safety switch provided in the safety cutoff circuit 35 operates. The power is cut off by the above-described operation.

Next, the case where the power line 29 is leaked will be described.

In this case, the transistor control IC 41
Since the signal from the current transformer 39 is turned off, the safety cutoff circuit 35 is closed and even if the signal from the photocoupler 48 is turned on, the output of the signal to the switch operating transistor 40 is turned off, and the coil 38 receives the current. Does not flow, the relay switch 37 opens and the power supply from the power supply line 29 to the apparatus main body 4 is cut off.

In the power cutoff circuit described above, since the safety control power supply circuit 42 of the earth leakage breaker 30 branches the power supply line 43 from the power supply line 29 to the relay switch 37 on the power supply side, leakage may occur. When one of the safety switches of the safety cutoff circuit 35 is opened, the power can be shut off immediately without flowing the current from the control power supply to the apparatus main body 4, so that the safety is further enhanced.

In the above embodiment, the safety cutoff circuit is provided with the falling switch 32 in addition to the disengagement switch 31 as a safety switch for detecting the fall of the apparatus body 4 into the bath. This is because it is a double safety switch to detect, and when the device body is installed on the floor of the bathroom, it is not necessary to worry about falling into the bathtub, but it is necessary to worry about falling.

In the above embodiment, the case where a release switch such as a lead switch or a micro switch that directly opens and closes the safety cutoff circuit is used as the safety switch for detecting the fall of the apparatus body 4 into the bathtub 1 is described. The movement of
The safety cutoff circuit may be opened and closed under the control of the microcomputer by detecting with a sensor using light, radio waves, ultrasonic waves, or the like.

[0059]

The present invention has the above-described structure and operation. When the main body of the apparatus placed on the edge of the bathtub falls, whether or not it falls and falls, it slides and falls vertically. However, regardless of the state of the fall, this is detected accurately and quickly, and the power is cut off.

As a result, even if the apparatus body is installed at the edge of the bathtub, there is no concern that it will fall into the bathtub and cause an electric shock accident to the bather, and a bathtub water purifying device that provides a comfortable and comfortable bathing is provided. It

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment,

FIG. 2 is a partial sectional view of the first embodiment,

FIG. 3 is a partial sectional view of a second embodiment,

FIG. 4 is a power cutoff circuit diagram,

FIG. 5 is a perspective view of the apparatus installation state,

FIG. 6 is a piping diagram of a bath water purifying device.

[Explanation of symbols]

 1 Bathtub 2 Hot water 3 Hot water suction pipe 4 Device body 9 Hot water suction pipe 14 Back plate 15 Reed switch 24 Micro switch 30 Leakage breaker 31 Disengagement switch 35 Safety cutoff circuit 36 Leakage cutoff circuit 42 Safety safety control power supply circuit

Claims (2)

[Claims] 1. A hot water in a bathtub is pumped up from a hot water pipe, and is circulated in the main body of the apparatus in which various cleaning processing devices such as a filtering device, a circulation pump, a heater, and a sterilizing device are collectively housed and cleaned. In a bathtub hot water purification device that ejects the hot water that has finished liquefaction to the bathtub again, it operates by detecting the fall of the device body into the bathtub on the back plate of the device body placed on the edge of the bathtub, A safety device for a bathtub water purifying device, which is equipped with a drop switch for constructing a safety shutoff circuit for shutting off power through an earth leakage breaker. 2. A drop switch operates by detecting the detachment of the apparatus body from the installation position and directly opens and closes the safety cutoff circuit.
The safety device for a bathtub water purifying apparatus according to claim 1, wherein the safety device is a release switch such as a lead switch or a micro switch.