JPH0729076U - Automatic cleaning device for sanitary equipment - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide an automatic cleaning device for sanitary ware capable of accurately detecting and displaying a failure of a cleaning body supply means. [Composition] When the electromagnetic on-off valve 4 is normally opened in accordance with a command signal O from the microcomputer 22, a water flow is generated in the water supply pipe, and the water flow sensor 10 detects the water flow and outputs a detection signal K.
Then, when the electromagnetic on-off valve 4 is closed according to the command signal C,
Within a few seconds, the generation of the water flow in the water supply pipe 3 stops, and the output of the detection signal K from the water flow sensor 10 also stops. That is, the detection signal K is output within a few seconds after the command signal O is output.
Is not output, the cleaning body supply means (water supply pipe,
Water does not flow due to failure of the solenoid on-off valve 4 and valve drive circuit 21). On the other hand, if the output of the detection signal K is not stopped within a few seconds after the command signal C is output, the cleaning body supply means has failed and water continues to flow. In these cases, the microcomputer 22 lights up the failure display lamp 9 to display that the automatic cleaning device is in failure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automatic cleaning device for various sanitary appliances such as flush toilets and washbasins.

[0002]

[Prior art]

 FIG. 6 and FIG. 7 show how the conventional automatic flushing device for flushing urinals for men (hereinafter referred to as morning glory) is attached.

The morning glory 1 is attached to the front side of the wall surface 2 of the washroom, and an electromagnetic opening / closing valve 4 is connected to the water supply pipe 3 connected to the morning glory 1. When the electromagnetic opening / closing valve 4 is opened, washing water is supplied from the water supply pipe 3 to the bosh 1. On the contrary, when the electromagnetic opening / closing valve 4 is closed, the supply of washing water from the water supply pipe 3 to the bosh 1 is shut off.

The control box 5 is attached to the back side of the wall surface 2 slightly above the morning glory 1, and the surface plate 5 a of the control box 5 is exposed on the wall surface 2. A human detection sensor 6 including a light emitting element 6a and a light receiving element 6b is provided on the surface plate 5a, and a controller 7 and a lithium battery 8 are provided in the control box 5.

The light emitting element 6a is composed of a light emitting diode and projects infrared light having a preset wavelength. Further, the light receiving element 6b is composed of a photodiode or a phototransistor, and outputs a detection signal only when receiving infrared light having the same wavelength as the projected light of the light emitting element 6a.

FIG. 8 shows an electric block circuit of a conventional morning glory automatic washing device. The lithium battery 8 supplies power to the constant voltage circuit 20 and the valve drive circuit 21 in the controller 7.

The constant voltage circuit 20 is composed of a three-terminal regulator and is stable to the human detection sensor 6 and a microcomputer (hereinafter abbreviated as “microcomputer”) 22, a light emission drive circuit 23, and a light reception circuit 24 in the controller 7. Supplying a direct current voltage.

The microcomputer 22 includes a central processing unit (CPU), a read-only memory (ROM) that stores a control program, a readable and writable memory (RAM) that temporarily stores a result of a human detection operation described later, It consists of an input / output interface, etc.

The valve drive circuit 21 opens and closes the electromagnetic opening / closing valve 4 based on command signals O and C from the microcomputer 22. That is, the valve drive circuit 21 outputs a pulsed control signal o when receiving a command signal O for opening the electromagnetic on-off valve 4 from the microcomputer 22, and outputs a command signal C for closing the electromagnetic on-off valve 4 from the microcomputer 22. When received, it outputs a pulsed control signal c. The electromagnetic on-off valve 4 is configured to open when a control signal o is input and close when a control signal c is input.

The valve drive circuit 21, the electromagnetic on-off valve 4, and the water supply pipe 3 constitute a cleaning body supply means. The light emission drive circuit 23 causes the light emitting element 6a to emit light based on the light emission command signal F from the microcomputer 22. When a person is standing in front of the morning glory 1, the projection light from the light emitting element 6a is reflected by the person. Then, the light receiving element 6b detects the reflected light and outputs a detection signal, and the light receiving circuit 24 outputs a detection signal R obtained by amplifying the detection signal of the light receiving element 6b to the microcomputer 22. On the other hand, when no person is standing in front of the morning glory 1, the projected light from the light emitting element 6a is not reflected, and the light receiving element 6b cannot detect the reflected light, and therefore does not output the detection signal.

Therefore, the microcomputer 22 can detect whether or not a person is standing in front of the morning glory 1 based on the detection signal R output from the light receiving circuit 24. Then, the personal computer 22 determines that the person is "detected" if the person is standing, and "not detected" if the person is not standing, and stores the determination result in the RAM. Hereinafter, a series of operations of the microcomputer 22 will be referred to as a human detection operation.

This person detecting operation is performed at regular time intervals (for example, every second). Then, the microcomputer 22 controls the valve drive circuit 21 based on the present determination result and the previous determination result stored in the RAM.

That is, when the previous determination result is “non-person detection” and the present determination result is “person detection”, the microcomputer 22 determines that the user has appeared before the morning glory 1 and determines that the morning glory 1 Perform pre-cleaning treatment. That is, the microcomputer 22 controls the valve drive circuit 21 to open the electromagnetic on-off valve 4 for a certain period of time to supply a certain amount of cleaning water from the water supply pipe 3 to the morning glory 1 to clean the morning glory 1. As a result, the morning glory 1 is free from stains and odors, allowing the user to comfortably add small amounts and keeps the morning glory 1 from becoming dirty.

Subsequently, when the previous determination result is “person detection” and the current determination result is “person non-detection”, the microcomputer 22 determines that the person who has finished adding small amounts has left the morning glory 1. After the judgment, the morning glory 1 is subjected to the post-cleaning process. That is, the microcomputer 22 controls the valve drive circuit 21 to open the electromagnetic on-off valve 4 for a certain period of time to supply a certain amount of cleaning water from the water supply pipe 3 to the morning glory 1 to clean the morning glory 1.

As described above, in the conventional morning glory automatic cleaning device, when a person who wants to take a small dose stands in front of the morning glory 1, the morning glory 1 is washed (pre-cleaning process), and the small dose is finished. When a person leaves the morning glory 1 from the front, the morning glory 1 is washed again (post-cleaning process).

[0016]

[Problems to be solved by the device]

 By the way, the conventional morning glory automatic cleaning device does not have a function of detecting a failure of the cleaning body supply means (the water supply pipe 3, the electromagnetic on-off valve 4, the valve drive circuit 21). Therefore, there was a problem that the device could not be properly managed.

In other words, even if the human detection operation is accurately performed and the controller 7 is operating normally, the cleaning water may continue to be discharged due to a failure of the cleaning body supply means even though there is no user. is there. For example, in the case where the electromagnetic on-off valve 4 fails and remains open, the valve drive circuit 21 fails, and the control signal c is not output, the wash water continues to be output.

Further, even if the human detection operation is accurately performed and the controller 7 is operating normally, there is a case where the cleaning water does not come out despite the presence of the user due to a failure of the cleaning body supply means. . For example, when the water supply pipe 3 is clogged and the cleaning water does not flow, the electromagnetic on-off valve 4 has failed and remains closed, the valve drive circuit 21 has failed, and the control signal o is not output. The washing water will not come out.

Since the wash water is usually supplied from the water supply, if the wash water continues to be supplied, the water charge is expensive and the management cost becomes high. Moreover, when the washing water is not supplied, the morning glory 1 becomes heavily soiled, resulting in unsanitary conditions and increased cleaning work, which also increases the management cost.

The present invention has been made to solve the above problems, and its purpose is to provide an automatic cleaning device for sanitary ware capable of accurately detecting and displaying a failure of the cleaning body supply means. To provide.

[0021]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is based on a person detecting means for detecting a user of a sanitary appliance, a cleaning body supplying means for supplying a cleaning body to the sanitary appliance, and a detection by the person detecting means. By controlling the cleaning body supply means, supply control means for supplying the cleaning body to the sanitary ware for a fixed time, failure detection means for detecting a failure of the cleaning body supply means, and the failure detection The gist of the present invention is to provide a failure display means for displaying a failure of the cleaning body supply means in accordance with the detection of the means.

[0022]

[Action]

 Therefore, according to the present invention, the failure detecting means can detect the failure of the cleaning body supplying means. Then, the failure of the cleaning body supply means can be displayed by the failure display means.

[0023]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the same components as those in the conventional example shown in FIGS. 6 to 8 are designated by the same reference numerals and detailed description thereof will be omitted.

FIG. 2 and FIG. 3 show the mounting state of the morning glory automatic cleaning device of this embodiment. In this embodiment, the following two points are different from the conventional mounting state shown in FIGS. 6 and 7.

On the surface plate 5a of the control box 5, a failure display lamp 9 using LEDs is provided. A water flow sensor 10 is provided in the water supply pipe 3 between the morning glory 1 and the electromagnetic opening / closing valve 4.

As shown in FIG. 4, the water flow sensor 10 is composed of an angle sensor 10 a and a lever 10 b mounted inside the water supply pipe 3. The lever 10b is held in the position A in the figure by a spring (not shown) provided inside the lever 10b in a steady state. When a water flow is generated in the water supply pipe 3, the lever 10b is pushed by the water pressure and displaced to the position B in the figure. The angle sensor 10a outputs a detection signal K according to the displacement of the lever 10b. That is, the angle sensor 10a does not output the detection signal K when the lever 10b is in the A position (when there is no water flow) and does not output the detection signal K when the lever 10b is in the B position (when there is water flow). Is output. That is, the water flow sensor 10 outputs the detection signal K only when there is a water flow in the water supply pipe 3.

FIG. 1 shows an electric block circuit of the morning glory automatic washing device of this embodiment. The present embodiment is different from the conventional electric block circuit shown in FIG. 8 only in that the failure indicator lamp 9 and the water flow sensor 10 are connected to the microcomputer 22.

Next, the operation of this embodiment having the above configuration will be described. The light emission drive circuit 23 causes the light emitting element 6a to emit light based on the light emission command signal F from the microcomputer 22. When a person is standing in front of the morning glory 1, the projection light from the light emitting element 6a is reflected by the person. Then, the light receiving element 6b detects the reflected light and outputs a detection signal, and the light receiving circuit 24 outputs a detection signal R obtained by amplifying the detection signal of the light receiving element 6b to the microcomputer 22. On the other hand, when no person is standing in front of the morning glory 1, the projected light from the light emitting element 6a is not reflected, and the light receiving element 6b cannot detect the reflected light, and therefore does not output the detection signal.

Therefore, the microcomputer 22 can detect whether a person is standing in front of the morning glory 1 based on the detection signal R output from the light receiving circuit 24. Then, the my-con 22 performs a person detecting operation of determining “person detection” if a person is standing and “non-detection” if not standing and storing the determination result in the RAM.

This person detecting operation is performed at regular time intervals (for example, every second). Then, the microcomputer 22 controls the valve drive circuit 21 based on the present determination result and the previous determination result stored in the RAM.

That is, when the previous determination result is “non-human detection” and the present determination result is “human detection”, the microcomputer 22 determines that the user has appeared before the morning glory 1 and determines that the morning glory 1 Perform pre-cleaning treatment. That is, the microcomputer 22 controls the valve drive circuit 21 to open the electromagnetic on-off valve 4 for a certain period of time to supply a certain amount of cleaning water from the water supply pipe 3 to the morning glory 1 to clean the morning glory 1. As a result, the morning glory 1 is free from stains and odors, allowing the user to comfortably add small amounts and keeps the morning glory 1 from becoming dirty.

Subsequently, when the previous determination result is “person detection” and the present determination result is “person non-detection”, the microcomputer 22 determines that the person who has finished adding the small amount has left the morning glory 1. After the judgment, the morning glory 1 is subjected to the post-cleaning process. That is, the microcomputer 22 controls the valve drive circuit 21 to open the electromagnetic on-off valve 4 for a certain period of time to supply a certain amount of cleaning water from the water supply pipe 3 to the morning glory 1 to clean the morning glory 1.

In this way, also in the morning glory automatic cleaning device of the present embodiment, as in the conventional case, when a person who intends to take a small dose stands in front of the morning glory 1, the morning glory 1 is cleaned (pre-cleaning process). When a person who has finished applying small doses leaves the morning glory 1 in front of him, the morning glory 1 is washed again (post-washing treatment).

At the time of cleaning the morning glory 1, if the cleaning body supply means (the water supply pipe 3, the electromagnetic on-off valve 4, the valve drive circuit 21) is normal, a command signal for opening the electromagnetic on-off valve 4 from the microcomputer 22. Within a few seconds after O is output, the water flow sensor 10 outputs the detection signal K. Subsequently, the output of the detection signal K from the water flow sensor 10 is stopped within a few seconds after the control signal C for closing the electromagnetic on-off valve 4 is output from the microcomputer 22.

That is, when the cleaning body supply means normally operates according to the command signal O, a water flow is generated in the water supply pipe 3 within a few seconds. Then, the water flow sensor 10 detects the water flow in the water supply pipe 3 and outputs the detection signal K. Then, when the cleaning body supply means normally operates according to the command signal O, the generation of the water flow in the water supply pipe 3 is stopped within a few seconds. Then, the output of the detection signal K from the water flow sensor 10 also stops.

Conversely, when the detection signal K is not output within a few seconds after the command signal O is output, the cleaning body supply means is out of order (the water supply pipe 3 is clogged and the cleaning water is blocked). Does not flow, the solenoid on-off valve 4 fails and remains closed, the valve drive circuit 21 fails, and the control signal o is not output.) On the other hand, if the output of the detection signal K is not stopped within a few seconds after the command signal C is output, the cleaning body supply means is out of order (the solenoid on-off valve 4 is out of order and remains open). That the control signal c is not output due to a failure of the valve drive circuit 21).

Therefore, when the cleaning body supply means is out of order as described above, the microcomputer 22 determines that the cleaning body supply means is out of order and turns on the failure display lamp 9 so that the automatic cleaning device fails. Display that it is in the middle.

When the failure display lamp 9 is lit, the user refrains from using the morning glory 1. Therefore, it is possible to prevent the morning glory 1 from becoming dirty when the cleaning body supply means fails and the cleaning water does not come out, and it becomes hygienic. Further, since the administrator can accurately detect the failure of the cleaning body supply means (in particular, the electromagnetic on-off valve 4) only by checking whether or not the failure display lamp 9 is turned on, it is easy to properly manage the apparatus. become.

As described above, according to this embodiment, the failure of the cleaning body supply means is accurately detected based on the detection signal K of the water flow sensor 10, and the failure display lamp 9 is turned on when the cleaning body supply means fails. Can be displayed.

The present invention is not limited to the above embodiment, but may be carried out as follows. 1) As shown in FIG. 5, a water flow sensor 10 composed of a screw 11 and a generator 12 is used. In this case, when a water flow is generated in the water supply pipe 3, the screw 11 rotates, and the generator 12 connected to the shaft of the screw 11 generates a voltage corresponding to the detection signal K 1.

2) The water flow sensor 10 is constructed using a thermistor. That is, a thermistor is arranged in the water supply pipe 3, and the presence or absence of water flow is detected from the temperature change around the thermistor.

3) As a method of lighting the failure indicator lamp 9 when the cleaning body supply means is defective, a method of lighting only when the user stands in front of the morning glory 1 or when the cleaning body supply means is defective Once the judgment is made, there is a method of keeping the light on regardless of the presence or absence of the user.

4) The failure indicator lamp 9 is installed not in the surface plate 5 of the control box 5 but in another place. 5) Replace fault indicator lamp 9 with other visual display means such as a liquid crystal display.

6) In addition to the visual display by the failure display lamp 9, an audio display (buzzer sounds, announcement of failure, etc. is output from the speaker). 7) The light emitting elements 6a and 6b project visible light or ultraviolet light instead of infrared light, and the light receiving element 6c receives the projected light to output a detection signal.

8) The light emitting element 6a is replaced with an ultrasonic speaker, and the light receiving element 6 is replaced with an ultrasonic microphone. Then, an ultrasonic wave is emitted from the ultrasonic speaker, and the reflected wave reflected by the ultrasonic wave upon the user is detected by the ultrasonic microphone, so that the person detecting operation is performed in the same manner as above.

9) The pre-cleaning process is performed when the determination result of “human detection” continues twice after the determination result of “human non-detection”. In addition, after the determination result of "human detection" is followed by the determination result of "human non-detection" twice, the post-cleaning process is performed. In this case, the person detection operation can be performed more reliably even if a person simply crosses the front of the morning glory 1 or the person's body sways during small use, and the pre-cleaning process and the post-cleaning process are not performed correctly. There is no need to do it.

10) Replace the lithium battery 8 with a DC power supply device and supply power from a commercial power supply. 11) A second electromagnetic on-off valve is provided in series with the electric on-off valve 4, and when the electromagnetic on-off valve 4 fails and remains open, the second electromagnetic on-off valve is closed to shut off the supply of washing water. Let In this case, even if the electromagnetic on-off valve 4 breaks down and remains open, the wash water does not continue to come out, and when the wash water is supplied from the water supply, the water charge is high and the management cost is high. Can be prevented.

12) Not only the morning glory 1, but also an automatic cleaning device for various sanitary appliances such as a washbasin. 13) The above 1) to 12) are appropriately combined and carried out.

[0049]

[Effect of device]

 As described in detail above, according to the present invention, there is an excellent effect that it is possible to provide an automatic cleaning device for sanitary ware capable of accurately detecting and displaying a failure of the cleaning body supply means.

[Brief description of drawings]

FIG. 1 is an electric block circuit diagram of an embodiment in which the present invention is embodied in an automatic washing device for a flush urinal for men (morning glory).

FIG. 2 is a partially cutaway side view showing an attached state of the flush urinal for men (morning glory) of the embodiment.

3 is a front view of the flush urinal for men (morning glory) shown in FIG. 2. FIG.

FIG. 4 is a schematic diagram for explaining the configuration of a water flow sensor according to an embodiment.

FIG. 5 is a schematic diagram for explaining the configuration of another water flow sensor.

FIG. 6 is a partially cutaway side view showing an attached state of a conventional men's flush urinal (morning glory).

7 is a front view of the flush urinal for men (morning glory) shown in FIG. 6. FIG.

FIG. 8 is an electric block circuit diagram of a conventional automatic washing device for flush urinals for men (morning glory).

[Explanation of symbols]

1… Men's flush urinal (morning glory) as a sanitary device, 3…
Water supply pipe constituting cleaning body supply means, 4 ... Electromagnetic on-off valve constituting cleaning body supply means, 6 ... Human detection sensor constituting human detection means, 9 ... Failure display lamp as failure display means, 10 ... Failure Water flow sensor, which constitutes the detection means, 21 ...
A valve drive circuit that constitutes the cleaning body supply means, 23 ... A light emission drive circuit that constitutes the human detection means, 24 ... A light receiving circuit that constitutes the human detection means, 22 ... Constitutes a supply control means, a human detection means, and a failure detection means. Microcomputer

Claims (1)

[Scope of utility model registration request] 1. A person detection means (6, 22, 23, 24) for detecting a user of a sanitary equipment (1), and a cleaning body supply means (3, 4,) for supplying a cleaning body to the sanitary equipment. 21), and a supply control means (22) for supplying the cleaning body to the sanitary ware for a predetermined time by controlling the cleaning body supply means based on the detection of the person detecting means, and the cleaning body supply Failure detection means for detecting failure of means (1
0, 22) and failure display means (9) for displaying a failure of the cleaning body supply means according to the detection of the failure detection means.