JP2000008445A - Automatic flushing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To completely drain fouled waste by automatically flushing the inside of a toilet bowl if there is a change, after reflected beam density, color, image, etc., in the toilet bowl have been compared with each other in conditions before and after use by means of signals from a fouled waste detector. SOLUTION: When a toilet bowl cover 4 is closed after use of a toilet stool 1, light is emitted from a sensor 5 attached to the rear face of the toilet bowl cover 4 to the stored water level W in the toilet bowl 2a of the toilet stool body 2, and the reflected beam from the water level W is detected by the sensor 5. When fouled waste (o) remains in the stored water level W, as the reflected beam density is different from that before condition of use of the toilet stool 1, the reflected beam densities before and after use are detected by the sensor 5 and compared with each other in a controller. When there is a change in the reflected beam density, it is judged in the controller that fouled waste (o) remains in the toilet bowl 2a and flushing water is automatically supplied into the toilet bowl 2a to drain the fouled (o) waste. The sensor 5 can be replaced with a means which can detect color or image in the toilet bowl 2a. In this way, the fouled waste can be completely drained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic washing apparatus capable of automatically washing the inside of a bowl of a toilet.

[0002]

2. Description of the Related Art Conventionally, after a toilet is used, a cleaning handle is manually operated to wash dirt in a bowl portion of the toilet, and the toilet is automatically cleaned. The toilet is configured so that when the toilet user gets up from the toilet seat after using the toilet, the seating sensor or the like detects that the human body has left the toilet, thereby automatically flushing the flush water into the bowl of the toilet. Have been. Conventionally, in most cases, after manually operating the cleaning handle, the user often leaves the toilet without confirming that the waste in the toilet has completely flowed, especially in a toilet having an automatic cleaning device, Furthermore, it is less common to check whether or not the waste has completely flowed.In such a case, the waste of the user may remain in the bowl of the toilet, resulting in a very uncomfortable environment. There was a point.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned conventional problems, and has as its object to provide an automatic cleaning apparatus capable of reliably removing dirt in a toilet bowl. The first point is that the amount of reflection in the toilet bowl,
A filth detection means capable of detecting color, image, etc .;
The color, the image and the like are compared, and when there is a change, the inside of the bowl is automatically cleaned. The second gist is that the waste detection means is installed on the back of the toilet lid,
With the toilet lid closed, the amount of reflection, color, image, and the like are detected. A third aspect is that the waste detection means is connected to an electric opening / closing unit or a slowdown unit of the toilet lid, and the waste detection means is turned on when the toilet lid is closed via the unit.
That is, it is configured so that A fourth gist is that the waste detection means is configured to function as a human body detection sensor or a seating sensor when the toilet lid is open.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view of a toilet bowl,
A bowl portion 2a is formed in the toilet body 2 of the
A toilet seat 3 and a toilet lid 4 are attached on the upper side so as to be openable and closable, and a water retaining surface W is always formed in the bowl 2a.

In this embodiment, a sensor 5 is provided on the back surface of the toilet lid 4 and emits light from the sensor 5 toward the water retaining surface W in the bowl portion 2a, and reflects the light reflected by the water retaining surface W. The sensor 5 is configured to receive light and detect the amount of reflection, and the toilet lid 4 is closed after the toilet is used. Therefore, the sensor 5 is turned on with the toilet lid 4 closed.
As a state, light is emitted from the sensor 5 toward the water retaining surface W, the amount of light reflected from the water retaining surface and returned is detected, for example, the toilet lid 4 is closed after use of the toilet, and the waste O remains on the water retaining surface W. In this case, the amount of light reflected and returned is different from that before use of the toilet, so the sensor 5 detects the amount of light reflection before and after use and compares it in the controller. If the amount of reflection changes, the controller determines that dirt O remains in the pot 2a, and automatically supplies cleaning water into the pot 2a, and Is configured to be drainable.

That is, as shown in the perspective view of FIG. 2, a washing tank 7 for storing washing water is provided in a tank cover 6 erected on the rear of the toilet body 2, and a controller 8 is provided on the front side thereof.
A handle 10 is attached to a side surface of the tank cover 6, and the handle 10 is connected to a motor 12 and a lever 11 connected to the handle 10 as shown in FIG. 3, for example. Gears 13a, 13b
Is rotated automatically through the shaft, a chain (not shown) is pulled up, and a ball valve on the bottom of the washing tank 7 is pulled up.
The washing water in the inside can be configured to flow automatically into the pot portion 2a, and the controller 8 determines that the dirt O remains in the pot portion 2a based on the signal of the sensor 5 as described above. In some cases, a drive signal is output from the controller 8 to the motor 12, the motor 12 is driven, and the lever 11 is rotated through the gears 13a and 13b to automatically supply the washing water into the pot portion 2a. Can be configured in advance.

[0007] As described above, the sensor 5 is provided on the back side of the toilet lid 4.
If it is configured so that the water level W can be detected,
It is also possible to detect a state where the water retaining surface W does not exist in the pot portion 2a, and it is also possible to check for water seal breakage.
When it is determined that the water retaining surface W does not exist in the inside, the makeup water is supplied into the pot portion 2a to form the water retaining surface W favorably,
Odor leakage can be effectively prevented.

As shown in FIG. 2, the tank cover 6
When the electric opening / closing unit 9 is provided in the inside, the toilet lid 4 and the toilet seat 3
The electric opening and closing unit 9 is opened and closed.
And the sensor 5 are connected to each other,
The sensor 5 can be turned on when the toilet lid 4 is closed via the.

When the sensor 5 is composed of an optical sensor or the like, the toilet lid 4 is
In the opened state, the sensor 5 can detect that the user is seated on the toilet seat 3, and the sensor 5 detects whether or not the user is present on the toilet seat 3. Alternatively, it can be made to function as a sitting sensor, and when the toilet lid 4 is closed, it can function as a filth detecting means capable of detecting the presence of the filth O in the bowl portion 2a as described above. It can be used efficiently as a means and as a human body detecting means. When a slowdown unit is provided instead of the electric opening / closing unit 9, the slowdown unit and the sensor 5 may be connected to each other.

Further, in this embodiment, the sensor 5 is constituted by an optical sensor so as to be able to detect the amount of reflection in the bowl 2a. Can be replaced with a detecting means that can detect the color. When the waste O is present in the bowl portion 2a, the color or the image is different from the state before the toilet is used. When there is an image change, it may be determined that dirt remains in the pot portion 2a and the washing water may be automatically supplied into the pot portion 2a.

[0011]

According to the automatic washing apparatus of the present invention, there is provided a filth detecting means capable of detecting the amount of reflection, color, image and the like in the toilet bowl.
By comparing the amount of reflection, color, image, etc. before and after the use of the toilet by the signal from the waste detection means, and when there is a change, the inside of the bowl portion is automatically washed, so that before and after the use of the toilet Detecting that dirt remains in the pot by the change in the amount of reflection, color, image, etc., in this case, it is possible to supply cleaning water to the pot and drain the dirt reliably, and the next toilet bowl This has the effect of preventing the user from feeling uncomfortable.

Further, the waste detecting means is installed on the back of the toilet lid, and the amount of reflection, color, image, and the like are detected in a state where the toilet lid is closed. Since the toilet lid is closed, it is possible to properly detect the presence of dirt in the bowl with the toilet lid closed.

Further, the waste detection means is connected to an electric opening / closing unit or a slow down unit of the toilet lid, and the waste detection means is turned on when the toilet lid is closed via the unit. Thus, when the toilet lid is closed via the electric opening / closing unit or the like, the waste detection means is turned on, and the presence of waste in the bowl can be efficiently detected.

Further, the filth detection means is configured to function as a human body detection sensor or a seating sensor when the toilet lid is in an open state, so that a user is seated on the toilet seat when the toilet lid is in an open state. Can be satisfactorily detected by the filth detection means, and the filth detection means can also function as a human body detection sensor or a sitting sensor, and has an effect of being efficiently used.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional configuration diagram of a toilet provided with a waste detection sensor on the back surface of a toilet lid.

FIG. 2 is a transparent perspective view of a toilet bowl.

FIG. 3 is a perspective configuration diagram of an automatic cleaning function unit.

[Explanation of symbols]

 Reference Signs List 1 toilet 2 toilet body 2a bowl 3 toilet seat 4 toilet lid 5 sensor 7 cleaning tank 8 controller 9 electric opening and closing unit 10 handle 11 lever 12 motor 13a, 13b gear W water retaining surface O filth

Claims (4)

[Claims] 1. A waste detection means capable of detecting a reflection amount, a color, an image, and the like in a toilet bowl portion, and comparing the reflection amount, a color, an image, and the like before and after using a toilet by a signal from the waste detection means, and changing An automatic cleaning device configured to automatically clean the inside of the pot portion when there is a problem. 2. The apparatus according to claim 1, wherein said waste detecting means is provided on a back surface of the toilet lid, and detects the amount of reflection, color, image, and the like when the toilet lid is closed. 1
3. The automatic cleaning device according to claim 1. 3. The waste detecting means is connected to an electric opening / closing unit or a slowdown unit of the toilet lid, and the waste detecting means is turned on when the toilet lid is closed via the unit. 3. The automatic cleaning apparatus according to claim 2, wherein: 4. The filth detection means is configured to function as a human body detection sensor or a seating sensor when the toilet lid is open.
3. The automatic cleaning device according to claim 1.