JPH0617892Y2 - Automatic toilet bowl cleaning device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an automatic flushing device for toilet bowls, which automatically cleans the toilet bowl for men after use, and in particular, it is attached to an existing toilet bowl. Regarding what to use.

[Conventional technology]

Conventionally, when using a toilet bowl of a toilet, for example, a toilet bowl for men, when cleaning this toilet bowl, a push button for supplying a cleaning liquid, which is generally arranged above the toilet bowl, is pressed,
Cleaning liquid was supplied from the upper part of the toilet to the lower part of the toilet to wash the toilet. However, in recent years, after using a toilet bowl, this is detected and the cleaning fluid is automatically supplied to the toilet bowl for a certain period of time using a solenoid valve etc. without pressing a push button for supplying the cleaning fluid to clean the toilet bowl. Automatic cleaning devices that can do this are emerging.

[Problems to be solved by the device]

However, when installing the above-mentioned automatic cleaning device, it is necessary to remove the existing cleaning device equipped with a push button or the like and install a new automatic cleaning device, which not only wastes the existing cleaning device. The construction for installing the automatic cleaning device is troublesome, and the construction requires a long time, and it is inevitable to stop using the toilet bowl during that time. In addition, there is a problem that such construction is difficult to perform unless it is a construction specialist, and the construction cost is high.

The present invention has been made in view of the above points, and an object of the present invention is to remove the existing toilet bowl cleaning device without waste of the existing toilet bowl cleaning device. An object of the present invention is to provide a compact automatic toilet cleaning device for a toilet, which can be easily attached to the cleaning device and can automatically supply a cleaning liquid to the toilet after using the toilet to clean the toilet.

[Means for Solving the Problems]

The above object is achieved by the automatic toilet bowl cleaning device according to the present invention. The present invention is directed to a sensor for detecting approach and separation of a far infrared ray generation source, and a distance of the far infrared ray generation source after a lapse of a first predetermined time or more after the approach of the far infrared ray generation source is detected by the sensor. A drive signal generating circuit that outputs a drive signal when a drive signal is detected, a switch circuit that closes a second predetermined time when the drive signal is output from the drive signal generating circuit, and a motor that is energized when the switch circuit closes. , A switching mechanism that starts rotation by the motor when the switch circuit is closed and continues energizing the motor while rotating to a predetermined angle even after the switch circuit is opened,
A power transmission mechanism that transmits the rotation of the motor, a lever mechanism that transmits the rotation of the motor by the power transmission mechanism and operates to push the push button of the washing device provided on the toilet bowl and then return it to the original state. An automatic cleaning device for a toilet, comprising: a mounting base for mounting.

[Action]

According to the present invention, the mounting base of the toilet bowl automatic cleaning device is attached to the toilet bowl, the toilet bowl automatic cleaning device is installed, and the sensor provided in the toilet bowl automatic cleaning device is a far-infrared ray source such as a human body. When the separation of the far-infrared ray generation source is detected after a lapse of a first predetermined time or more after the approach is detected, the drive signal generation circuit outputs a drive signal and the switch circuit is closed for the second predetermined time. . As described above, the drive signal is output when the first predetermined time has elapsed after the human body or the like approaches the toilet bowl, and is not output when the human body or the like passes in front of the toilet bowl and is not used. When the switch circuit is closed, the motor is energized, and the rotation of the motor causes the switching mechanism to start rotating. The switching mechanism is
Even after the switch circuit opens, it rotates to the specified angle,
Continue energizing the motor. This ensures that the motor rotates until it reaches a predetermined angle, and this rotation is transmitted to the lever mechanism by the power transmission mechanism. The lever mechanism is
After pushing the push button of the cleaning device, it works to restore it. When the push button of the cleaning device is pressed, the toilet bowl is supplied with cleaning liquid, and when the push button returns to its original position, it stops.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an explanatory view of an embodiment of an automatic toilet cleaning device according to the present invention, and FIG. 2 is a perspective view of a partial main part showing a part of the automatic toilet cleaning device shown in FIG. Figure 3 shows
FIG. 4 is an explanatory view for driving a gear train used in the automatic toilet bowl cleaning device shown in FIG. 1, FIG. 4 is a cross-sectional explanatory view of main parts of FIG. 2, and FIG. 5 is an automatic toilet bowl shown in FIG. It is a top view of a switching means used for a cleaning device.

Referring to FIG. 1, the toilet bowl automatic cleaning device 10 of the present invention
Includes a drive unit 11 and a sensor unit 12. Referring to FIGS. 2, 3 and 4, the drive unit 11 has a container 13 for accommodating a gear train, and this container 13 is for a toilet bowl having a push button cleaning device. It becomes a mounting base. The container 13 is configured to be divided into an upper part and a lower part, and an upper wall of the upper part of the container 13 is partially open. A motor 14 as a drive source is arranged inside the container 13.
The gear 16 fixed to the rotary shaft 15 is engaged with the gear 20 fixed to the shaft 19 via the gear 18 fixed to the shaft 17.

A gear 21 is also fixed to the shaft 19, a gear 23 fixed to the shaft 22 is engaged with the gear 21, and a gear 24 is fixed to the shaft 22.
5 is engaged. The gear 25 is fixed to a conductive rotating shaft 26 that is rotatably supported in the container 13. Therefore, the rotation of the motor 14 is transmitted to the rotary shaft 26 via the gear train configured as described above, and its transmission ratio is set to a desired value by setting the number of teeth of each gear to a desired value. It can be changed accordingly.

An electrically conductive disc-shaped cam 27 is fixedly attached to the rotating shaft 26 in a state of being electrically connected thereto.
Is provided with a notch portion 28 (two locations facing each other in this embodiment) at a predetermined position on the periphery thereof.
The disc-shaped cam 27 is placed and fixed on the upper surface of a non-conductive reinforcing disc 29 that is also fixed to the rotary shaft 26. The disc-shaped cam 27 and the reinforcing disc 29 are It is arranged at the bottom of the container 13 and is configured to rotate integrally with the rotation of the rotating shaft 26. Further, the cutout portion 28 of the disc-shaped cam 27 is configured so as to enter the inside of the disc-shaped cam 27 rather than the outer periphery of the reinforcing disc 29. That is, the outer diameter of the reinforcing disc 29 fixed to the rotary shaft 26 is smaller than the outer diameter of the disc-shaped cam 27 and larger than the cut portion of the cut portion 28 (see FIG. 5).

In addition, the contact plate 30 made of, for example, phosphor bronze having elasticity
Is a disc-shaped cam 27 that rotates integrally with the rotating shaft 26.
It is arranged so as to be able to enter the cutout portion 28 while being in contact with the outer periphery of the. Here, the contact plate 30
Is in contact with the outer periphery of the disc-shaped cam 27, the contact plate 30 and the disc-shaped cam 27 are electrically connected to each other, and the contact plate 30 has the cutout portion 2 of the disc-shaped cam 27.
When it enters inside 8, the contact plate 30 and the disc-shaped cam 27 are not electrically connected. Therefore, the disc-shaped cam 27 having the cutout portion 28 and the contact plate 30 constitute the switching means. The contact plate 30 has elasticity, and the elasticity of the contact plate 3 is utilized.
0 is the cut portion 28 according to the rotation of the disk-shaped cam 27.
Although it is possible to enter and exit, it is preferable that the outer peripheral edge portion of the cutout portion 28 be curved in an arc shape so that the contact plate 30 can smoothly enter and leave the cutout portion 28.

A circular rotary plate 31 is provided above the rotary shaft 26 so as to rotate with the rotation of the rotary shaft 26, and the diameter of the rotary plate 31 is set on the upper surface of the rotary plate 31. Rotatable rollers 3 arranged at both ends of the outer circumference
2, 33 are provided. The rotary plate 31 is
The container 13 is disposed so as to pass through the opening of the upper wall of the upper portion of the container 13 and be located outside the container 13. Further, a contact plate 34 made of phosphor bronze is always in contact with the rotary shaft 26 at the rotary shaft 26 portion between the upper wall of the upper portion of the container 13 and the rotary plate 31 regardless of the rotation of the rotary shaft 26. They are arranged so as to maintain the electrical connection relationship. The shaft, gears, disk-shaped cam, rotary plate, rollers, etc. described above constitute a power transmission mechanism for transmitting power from the motor 14.

At the top of the upper wall of the upper part of the container 13, an elongated lever 35
The lever 35 is rotatably supported by a support shaft 36 arranged on the upper wall of the upper portion of the container 13.
Further, the lever 35 is provided with a slightly wide area portion 37 at one end side thereof, and the wide area portion 37 has a substantially elliptical opening portion 38 having a cam function. The opening 38 is arranged so as to correspond to the opening provided in a part of the upper wall of the upper portion of the container 13. Then, the rollers 32 and 33 provided on the upper surface of the rotating plate 31 are arranged so as to engage and contact the inner wall of the opening 38. Further, on the other end side of the lever 35, an operation button 39 for pressing the push button 101 of the cleaning device that supplies the cleaning liquid to the toilet 100 is provided.

In addition, the rollers 32 and 33 of the rotary plate 31 have an elliptical opening 3
When the lever 35 is rotated about the support shaft 36 by performing a circular motion (circular motion having the diameters of the rollers 32 and 33) while contacting and moving the inner wall of 8, the operation button 39 of the lever 35 is The rollers 32 and 33 are provided at appropriate positions on the rotary plate 31 so that the push button 101 of the cleaning device can be pushed at an appropriate timing. That is,
Speaking of the roller 32, when the roller 32 makes a circular motion and reaches the position of the circumferential position X of the elliptical opening 38, the operating button 39 of the lever 35 pushes the push button 101 most, and then the roller During the period in which 32 performs the above-mentioned circular movement and reaches the point from the circumferential position X of the elliptical opening 38 to the circumferential position Y, the state in which the push button 101 is returned to its original state is entered. 32 is provided at a predetermined position on the rotary plate 31. This also applies to the roller 33. By providing the two rollers 32 and 33, the lever 3
The support strength can be increased when the 5 is rotated.

Further, the sensor unit 12 includes a sensor such as a heat ray sensor, an ultrasonic sensor, or an infrared sensor. In the present embodiment, the far infrared ray 40 emitted from an infrared source such as a human body is sensed within a predetermined range. For example, a pyrometer, which is a pyroelectric sensor, that is, a pyrosensor 4 that converts into an electric signal
1 is provided. A signal processing circuit 42 that processes an electric signal input from the pyro sensor 41 is connected to a stage subsequent to the pyro sensor 41, and a drive having a one-shot multivibrator, an inverter, an AND circuit, and the like is provided at a stage subsequent to the signal processing circuit 42. A switch circuit 44 is connected via the signal generation circuit 43. One side of the switch circuit 44 is connected to the minus side of a power source 45 such as a battery, the other side is connected to one end side input of the motor 14, and the plus side of the power source 45 is the other end of the motor 14. It is connected to the side input.

The negative side of the power supply 45 is also connected to the contact plate 34, and the contact plate 30 is connected to one end side input of the motor 14, so that the contact plate 34, the rotary shaft 26, and the disc-shaped cam 2 are connected.
7 and the contact plate 30 are electrically connected to the motor 14.

Here, the operation of the pyro sensor 41, which is a pyroelectric sensor, will be described.

The pyro sensor 41 detects a temperature change and outputs a signal, and does not output a signal when there is no temperature change. Therefore, when it is used to detect the temperature change of the human body, the human body enters the detection range of the hilo sensor 41, so that the ambient temperature is higher than the ambient temperature previously detected by the pyro sensor 41. Thus, the detection signal a is output to the plus side. On the contrary, when the human body moves away from the detection range, the temperature change changes from the higher side to the lower side, so that the detection signal b is output to the minus side as shown in FIG. Actually, when detecting the temperature change due to the human body, since the human body is far from the pyro sensor 41, a means for collecting far infrared rays of the human body is usually used by a lens. There is a lens using germanium or polyethylene as a lens having a high refractive index and having a high efficiency of passing 10 μm). In this embodiment, a Fresnel lens made of polyethylene is used from the viewpoint of cost. ing.

In addition, in this embodiment, the one-shot multivibrator (not shown) that operates for a certain time is turned on by the detection signal a output when the human body approaches the pyrosensor 41, and the one-shot multivibrator operates for a certain time. Inside, it is set so that the switch circuit 44 does not turn on depending on the detection signal b output when the human body is separated from the pyro sensor 41. This fixed time may be set to be approximately the same as the time required for using the toilet bowl, for example, 7 to 8 seconds.

The operation of the above embodiment configured as described above will be described below.

Now, when the power source 45 is turned on and the toilet bowl automatic cleaning device is in the operating state, when a thing such as a human body that emits the far infrared rays 40 approaches the toilet bowl 100, the pyro sensor 41 detects the far infrared rays 40 and detects the far infrared rays 40. Output signal a (Fig. 8A
Then, the detection signal a is processed by the signal processing circuit 42 to shape the waveform into a pulse signal a1 (see FIG. 8B), and the one-shot multivibrator (not shown) of the drive signal generation circuit 43 is processed by the pulse signal a1. Is turned on for a predetermined time (see FIG. 8C).

After that, when the person leaves after a predetermined time required for dizziness in front of the toilet, that is, after the predetermined on-time of the one-shot multivibrator has passed, this is detected by the pyro sensor 41 as a temperature change and detected as described above. The signal b is output (see FIG. 8D), the detection signal b is processed by the signal processing circuit 42, and the waveform is shaped into the pulse signal b1 (see FIG. 8E). At this time, the OFF signal of the one-shot multivibrator and the pulse signal b1 are respectively inverted by the inverter of the drive signal generation circuit 43 (not shown), and these inverted signals are input to the AND circuit (not shown). To do. As a result, the drive signal generation circuit 43 outputs the drive signal d to the switch circuit 44 (see FIG. 8F) by the output signal from the AND circuit, and turns on the switch circuit 44.

The motor 14 is driven to rotate by the ON operation of the switch circuit 44, and this rotation causes the gears 16, 18, 20, 21,
It is transmitted to the rotary shaft 26 via 23, 24 and 25.
At this time, when the motor 14 starts rotating, the switch circuit 4
Although 4 is turned off, the motor 14 is continuously energized by the holding mechanism of the disk-shaped cam 27. That is,
The notched portion 28 of the disc-shaped cam 27 has the contact plate 30 fixed to the shaft 26 when the rollers 32 and 33 come to a position half rotated from the circumferential position Y of the opening 38.
It is provided with a timing so that the electric contact between the motor 14 and the power supply 45 is cut off by entering the cutout portion 28 of 7. Therefore, the motor 14 is electrically connected to the power supply 45 through the contact plate 34, the rotating shaft 26, the outer periphery of the disk-shaped cam 27 and the contact plate 30 until the contact plate 30 enters the cut portion 28. The motor 14 can continue to rotate. Therefore, since the rotary shaft 26 continues to rotate, the rotary plate 31 also rotates, and as a result, the rollers 32 and 33 of the rotary plate 31 engage and contact the inner wall of the elliptical opening 38 of the area portion 37. It moves and makes a circular motion as the rotary plate 31 rotates.

In this way, the lever 35 moves in the inner wall of the elliptical opening 38 of the rollers 32 and 33, and thus the lever 35 performs the above-described predetermined operation, that is, the pivotal movement about the support shaft 36 in the arrow Z direction. By the rotational movement of 35, the operation button 39 of the lever 35 pushes the push button 101 of the cleaning device to supply the cleaning liquid to the toilet bowl 100 for cleaning.

Then, the contact plate 30 is the cut portion 28 of the disc-shaped cam 27.
When it enters, the electric contact between the motor 14 and the power supply 45 is cut off, and the rotation of the motor 14 is stopped.
The rotation of 6 also stops. It should be noted that, if the cutout portion 28 has the above-described timing, the disc-shaped cam 27 is formed.
In addition, it can be provided at desired places such as three places.

Next, a case where a number of toilet bowls are juxtaposed like a toilet in a station will be described with reference to FIG.

When the toilet bowl with the automatic toilet bowl cleaning device of the present invention is juxtaposed, it is necessary to pass in front of the toilet bowl in front in order to reach the toilet bowl in the back. Each of the pyrosensors 41 as the provided sensor outputs the detection signal a when the human body approaches, and outputs the detection signal b when the human body approaches, similarly as described above (see A1 in FIG. 9). These detection signals a and b are processed by the signal processing circuit 42 in the same manner as described above to obtain pulse signals a1 and b.
The waveform is shaped into 1 (see B1 and C1 in FIG. 9), and the one-shot multivibrator (not shown) of the drive signal generation circuit 44 is turned on for a predetermined time by the pulse signal a1 (9th time).
(See FIG. D1), the detection signal b generated by passing as described above is generated in a short time from the generation of the detection signal a, and during that time, the one-shot multivibrator is on for a predetermined time, The pulse signal b1 is not input to the AND circuit (not shown), and as a result, the drive signal d is not output from the drive signal generation circuit 43 and the motor 14
Does not rotate. Therefore, the cleaning device does not operate and the cleaning liquid does not flow unnecessarily when the human body simply passes.

In this way, by attaching the automatic toilet bowl cleaning device of the present invention to the push button type cleaning device provided in the existing toilet bowl, the existing push button type cleaning device can be used, and this is wasted. Without using the toilet bowl, the toilet bowl can be automatically cleaned after use. in this case,
The toilet bowl automatic cleaning device of the present invention can be easily attached to the existing cleaning device because the operation mechanism of pushing the push button is a mechanical mechanism.

Even if the automatic toilet bowl cleaning device of the present invention fails and does not work, and the automatic toilet bowl cleaning device of the present invention must be removed for any reason, the automatic toilet bowl cleaning device By removing the device, it is possible to manually use the device in the conventional manner. Therefore, it is possible to provide a simple type automatic toilet cleaning device.
In addition, since the battery is used as the power source, troublesome wiring work is unnecessary, and it can be made compact, and the lever can be pushed so that the disk-shaped cam can push the push button of the cleaning device in half a turn. Since it is operated, the electric power for driving the motor can be saved and the battery life can be extended.

The automatic toilet bowl cleaning device of the present invention can be used by being attached to any existing push button type cleaning device. As an example, in the cleaning device shown in FIG. 10, a cleaning unit 103 is provided near the flash valve 102. This is because the detergent is mixed into the cleaning water that has flowed out of the flash valve 102 when the push button 101 is pressed,
It flows through the washing pipe 104 into the toilet bowl. Such a cleaning unit 103 includes, for example, Japanese Patent Publication No. 50-3150.
Have been disclosed by. This allows the deodorant from the deodorant to be ejected into the atmosphere and the detergent to be flushed into the toilet whenever flush water is flushed from the flush valve 102. Even for such a cleaning device, by mounting the push button 101 so that the lever pushes, the automatic cleaning device for a toilet of the present invention can be used.

[Effect of device]

As described above, according to the toilet bowl automatic cleaning device of the present invention, the mounting base of the toilet bowl automatic cleaning device is attached to the toilet bowl, the toilet bowl automatic cleaning device is installed, and When the distance of the far-infrared ray generation source is detected after a lapse of the first predetermined time or more after the approach is detected by the sensor, the drive signal generation circuit outputs the drive signal, and the switch circuit outputs the second predetermined time. Closed and the motor energized,
Even after the switching mechanism rotates and the switch circuit opens, the motor continues to be reliably energized until the predetermined angle is reached, and this rotation is transmitted to the lever mechanism by the power transmission mechanism and the push button of the cleaning device is pressed. Since it is decided to return to the original state after that, it can be easily attached to the toilet bowl using an existing toilet bowl cleaning device having a push button and can be made compact. Therefore, it is possible to wash the toilet by automatically supplying the cleaning liquid to the toilet after using the toilet without wasting the existing device.

In addition, when the human body or the like has just passed in front of the toilet bowl and has not been used, cleaning is not performed and unnecessary cleaning is prevented. In addition, even if the rotation speed of the motor fluctuates due to fluctuations in the voltage supplied to the motor or fluctuations in the hardness of the push button, the switching mechanism keeps the motor running until it reaches the specified angle. Is continuously energized. With this, after pressing the push button, it is possible to reliably return to the original position and stop the washing water.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of an automatic toilet bowl cleaning device according to the present invention, and FIG. 2 is a partial perspective view showing a partial cutaway portion of the automatic toilet bowl cleaning device shown in FIG. FIG. 3 is an explanatory view for driving a gear train used in the toilet bowl automatic cleaning device shown in FIG. 1, FIG. 4 is a cross-sectional explanatory view of a main part of FIG. 2, and FIG. FIG. 6 is a plan view of a switching means portion used in the toilet bowl automatic cleaning device shown in FIG. 6, and FIG. 6 is a detection output when a sensor used in an embodiment of the toilet bowl automatic cleaning device of the present invention detects far infrared rays. FIG. 7 is an explanatory diagram of signals, FIG. 7 is an explanatory diagram of detection signals output when a sensor used in an embodiment of the automatic toilet bowl cleaning device of the present invention stops detecting far infrared rays, and FIG. Timing for driving a motor used in an embodiment of the proposed automatic cleaning device for toilet bowl FIG. 9 is a timing chart when the motor used in one embodiment of the toilet bowl automatic cleaning device of the present invention is not driven, and FIG. 10 is capable of mounting the toilet bowl automatic cleaning device of the present invention. It is a perspective view showing an example of another push-button type washing device. 14 ... Motor, 15, 17, 19, 22, 26 ... Shaft, 1
6, 18, 20, 21, 23, 24, 25 ... Shaft, 27 ...
Disc-shaped cam, 28 ... Notched portion, 30, 34 ... Contact plate,
31 ... Rotating plate, 32, 33 ... Roller, 35 ... Lever, 40
... far infrared ray sensor, 41 ... pyro sensor, 42 ... signal processing circuit, 43 ... drive signal generating circuit, 100 ... toilet, 101 ...
Push button, 102 ... Flush valve, 103 ... Cleaning unit.

Claims (1)

[Scope of utility model registration request] 1. A sensor for detecting the approach and separation of a far infrared ray generation source, and the far infrared ray generation after a lapse of a first predetermined time or more after the approach of the far infrared ray generation source is detected by the sensor. A drive signal generation circuit that outputs a drive signal when the separation of the sources is detected, and a switch circuit that closes a second predetermined time when the drive signal is output from the drive signal generation circuit, and the switch circuit closes A motor energized with, a switching mechanism that starts rotation by the motor when the switch circuit is closed, and continues energization to the motor while rotating to a predetermined angle even after the switch circuit is opened, A power transmission mechanism that transmits the rotation of the motor, and the rotation of the motor is transmitted by the power transmission mechanism,
An automatic toilet cleaning device for toilets, comprising: a lever mechanism that operates so as to push the push button of the cleaning device provided on the toilet bowl and then returns it to the original state; and a mounting base for attaching the toilet device to the toilet bowl.