JP2007218040A - Toilet washing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet washing apparatus and a toilet control system which reduce the malfunction of a flush unit for removing evacuation and urine to an extremely less frequency, consume less power supplied to a human body detection sensor, and allow manual flushing operation at blackout to offer a great water-saving effect. <P>SOLUTION: The toilet washing apparatus includes a detector 10 that detects the use of a toilet 1, and a washwater opening/closing valve opening device 20 which opens a washwater opening/closing valve that supplies washwater to the toilet 1 in response to a detection result from the detector 10. The detector 10 has an infrared emitting unit 11 that emits infrared rays, an infrared receiving unit 12 that receives reflected infrared rays emitted from the infrared emitting unit 11, and a photogenerator 17 that generates power necessary for operation of the infrared emitting unit 11 out of light at a toilet installation spot. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a toilet cleaning device that automatically cleans a toilet after defecation and urination.

Various products are commercially available for toilet flushing devices that automatically flush the toilet after defecation and urination and automatically wash the toilet.
Among such conventional toilet cleaning devices, there is one that controls the flow rate adjustment of cleaning water for removing defecation and urination from the toilet by the length of the opening time of the electromagnetic valve.

When adjusting the flow rate of cleaning water according to the opening time of the solenoid valve, set the water pressure high so that foreign matter does not enter the solenoid valve or is immediately discharged when foreign matter enters the solenoid valve. It is.
However, setting the cleaning water pressure high is contrary to the idea of water saving because the amount of cleaning water at the time of defecation inevitably increases.

In addition, if the solenoid valve breaks down when the valve is closed, it will be in a “water does not flow” state, and filth will be left in the valve device. On the other hand, when the solenoid valve breaks down when the valve is opened, it becomes a state where “water does not stop due to flow”, which is the opposite of the purpose of saving water.
Furthermore, at the time of a power failure, as in the case of a failure, the water cannot flow or the water does not stop, and the toilet cannot be used.

  For this reason, in a toilet flushing device that automatically cleans a toilet bowl that adjusts the flow rate of cleaning water with the opening time of the solenoid valve, a service person from a maintenance company is called for repairs in the event of a solenoid valve failure or power failure. There is a problem that the toilet cannot be used for a long time until completion.

In addition, in the conventional toilet cleaning device, when water flows into the toilet after defecation and urination, the user selects, for example, the “etiquette cleaning” mode after using the no-touch type automatic water flow to use more water. There are types of defecation and urination.
When such type of automatic toilet cleaning device is used, even if water is saved by the automatic water flow mechanism, water is further used, so that a desired water saving effect may not be obtained.

Furthermore, in the conventional automatic toilet cleaning device, the presence or absence of a user is recognized by, for example, an infrared sensor.
However, when human body detection is performed by a sensor, it is necessary to supply driving power for the sensor. The cost of such driving power cannot be ignored in large toilets and public toilets such as stations.
Such a problem exists in both flush valve toilets and tank toilets.

As another conventional technique, for example, a toilet device using a remote controller has been proposed (see, for example, Patent Document 1).
However, the related art (Patent Document 1) aims to reduce the size of the remote controller and does not solve the above-described problem.
JP 2000-45355 A

  The present invention has been proposed in view of the above-described problems of the prior art, can reliably supply cleaning water for defecation and urine removal, requires less power to be input to the human body detection sensor, and is used during power outages. The purpose of the present invention is to provide a toilet cleaning device and a toilet management system that can be manually operated and have a great water-saving effect.

The toilet cleaning device of the present invention includes a detection device (sensor unit 10) for detecting the use of the toilet (1) in the toilet cleaning device (100, 101) for washing with water after use of the toilet (1), In response to the detection result of the detection device (sensor unit 10), the cleaning water on-off valve (2, 210) for supplying cleaning water to the toilet (1) and the cleaning water on-off valve (2, 210) are opened. The cleaning water opening / closing valve opening device (robot main body 20) includes an infrared irradiation device (11) that irradiates infrared rays, and the reflected infrared reflected light. An infrared light receiving device (12), and a photovoltaic power generation device (17) for generating electric power necessary for the operation of the infrared irradiation device (11) by light (sunlight and / or illumination) at a toilet installation location. (Claim 1) .
Here, the on-off valve for flush water means a flush valve in the case of the flush valve toilet (100), and means a float valve in the tank in the case of the tank toilet (101).

  The infrared irradiation device (11) in the detection device (sensor unit 10) does not irradiate infrared rays continuously (for example, on a wall surface of a toilet, etc.), but irradiates infrared rays intermittently (for example, a predetermined time elapses). Each time, it is configured to irradiate infrared rays for 100 μs). Therefore, it is preferable to be configured to save power consumption. It is preferable that the circuit that requires the standby current and the circuit that does not require the standby current are separated from each other.

In addition, the infrared irradiation device (11) is provided with a visible light irradiation device (11X), and when the detection device (sensor unit 10) is installed, the infrared irradiation position is appropriately and suitably adjusted by irradiating visible light. It is preferable to be configured so as to be able to.
Furthermore, the detection device (sensor unit 10) preferably includes a plurality of infrared irradiation devices (11).

  A plurality of infrared light receiving devices (12) in the detection device (sensor unit 10) are provided, and when the plurality of infrared light receiving devices (12) detect all reflected infrared rays (all the plurality of infrared light receiving elements are all present). Only in the case of “ON” or “reflected light detection”), it is preferable that a signal indicating that the reflected infrared ray is detected is output (an AND circuit is configured).

  However, the logic “outputs a signal indicating that a reflected infrared ray is detected only when all of the plurality of infrared light receiving devices (12) detect the reflected infrared ray” restores an accurate irradiation waveform on the infrared irradiation side (11). It is an example of the logic for carrying out, and if it is a logic which can restore | restore the exact irradiation waveform of the infrared irradiation side (11), it will not specifically limit.

  In addition, if the first power storage device (capacitor 18) that stores the power generated by the photovoltaic power generation device (17) is provided in the detection device (sensor 10), the amount of discharge increases. It is convenient because it can cope.

  In the present invention, when the flush water on / off valve is a flush valve (2), the flush water on / off valve opening device (20) is provided with an opening / closing operation member (operating rod 2a) of the flush water on / off valve (flush valve 2). A string-like member (3) which is attached to the opening / closing operation member (operating rod 2a) and is moved to a side where the washing water on-off valve (flush valve 2) is opened by applying a tensile force (flexible) A winding device (4) for winding the string-like member (3), an electric device (DC motor 5) for operating the winding device (4), and the string-like member (3) are wound. When the take-up device (4) takes up a predetermined amount, the take-up amount adjusting device (6) for stopping the electric device (motor 5) and the control device (control unit 21) are provided. The unit 21) is an electric device (DC motor 5). It is preferable that the flow rate of water (for flushing the toilet bowl) is controlled and the on-off valve for flush water (flush valve 2) is closed (Claim 2: FIG. 1, FIG. 8, FIG. 8). 9).

  Further, when the flush water on / off valve is a float valve (210) in the tank (201) of the tank-type toilet, the flush water on / off valve opening device (20) includes the flush water on / off valve (float valve 210). ) And is attached to the valve body (210a) and is moved to the side where the wash water on-off valve (float valve 210) is opened by applying a tensile force to the valve body (210a). A member (cable 260), a winding device (4) for winding the cord-like member (cable 260), an electric device (DC motor 5) for operating the winding device (4), and the cord-like shape When the member (cable 260) is wound up by a predetermined amount by the winding device (4), it has a winding amount adjusting device (6) for stopping the electric device (motor 5) and a control device (control unit 20). And The control device (control unit 20) controls the electric device (DC motor 5) (controls the opening time of the float valve 210, thereby adjusting) the flow rate of water (for toilet flushing) and washing It is preferable that the water on-off valve (float valve 210) is closed (FIGS. 13 to 15).

  Here, the winding amount adjusting device (6) includes a wheel (61) provided with a notch and a photo interrupter (62), and the notch (61a provided in the wheel (61). ) Is aligned with the photo interrupter (62), the take-up amount adjusting device (6) or the electric device (5) is preferably stopped.

  Here, the control device (control unit 21) controls the electric device (DC motor 5) so that the electric device (5) is stopped and the on / off valve for washing water (2) is opened. It is configured to adjust the flow rate of water (for toilet flushing) by controlling the time during which the water is consumed. That is, when washing after stool, the washing water on-off valve (2) is opened for a long time and a large amount of washing water is allowed to flow. At the time of washing after urine, the washing water on-off valve (2) is opened. It is preferable that the control device (control unit 21) performs the control to shorten the time and decrease the cleaning water flow rate.

  After toilet cleaning is completed, the control device (control unit 21) rotates the winding device (4) in the reverse direction to return the wound string-like member (3) to the state before being wound. It is preferable that the opening / closing operation rod (2a) thus moved is controlled to return to its original position (position before the string-like member 3 is wound).

  The toilet bowl cleaning device (100, 101) according to the present invention includes a detection device (power failure detection unit 26) that detects a power failure at a place where the toilet (1) is provided. The control device (21) has a power storage device (second capacitor 25), and the control device (21) measures a time elapsed after the detection device (26) detects a power failure and detects a human body ( Has a timer 28), and when a predetermined time has passed since the human body was detected, the washing water on-off valve (2) is opened to allow a predetermined amount of water (defecation and urination to flow). It is preferable that the control is performed so as to flow a necessary and sufficient amount of water (Claim 3).

  Here, the above-described control at the time of a power failure (control for opening a washing water on-off valve 2 and allowing a predetermined amount of water to flow when a predetermined time elapses after a power failure is detected) is reliably executed. Therefore, the toilet bowl cleaning device (100, 101) of the present invention can store the electric power required to drive the electric device (motor 5) that operates the winding device (4). A device (second capacitor 25) is preferably provided.

  The toilet management system of the present invention includes a toilet cleaning device (toilet cleaning devices 100 and 101 of claim 3), an information processing device (for example, a portable control device 30 such as a remote controller, an information network such as a LAN, a PC 40, etc. Etc., and the control device (21) in the toilet cleaning device (100, 101) has information (usage used) for grasping the use status of the toilet (1). Number of times, number of times used for urine, number of times used for urine) and the information can be transmitted to the information processing device (PC40). The information processing device (30, 40) Process and store the information transmitted from the control device (21) of (100, 101), and output information necessary for adjustment or setting of the toilet bowl cleaning device (100, 101). It is characterized by being configured as (claim 4).

Here, as the “information necessary for adjustment or setting of the toilet bowl cleaning device”, adjustment of the amount of washing water after defecation, setting of the sound volume for guidance, the above-described toilet bowl cleaning device (toilet bowl cleaning according to claim 3) In addition to the amount of water saved by using the devices 100, 101), the amount of carbon dioxide emission reduced as a result of water saving is included.
Such carbon dioxide emission is particularly important information when carbon dioxide emission rights are traded.

  According to the toilet cleaning device of the present invention having the above-described configuration, when the toilet (1) is in use, infrared rays irradiated from the infrared irradiation device (11) of the detection device (sensor unit 10) Is blocked by a person using the device, and cannot reach the infrared light receiving device (12) by being reflected by the wall of the toilet or the like. Therefore, if the infrared light irradiated from the infrared irradiation device (11) is received by the infrared light receiving device (12), it is determined that the toilet (1) provided with the toilet cleaning device (100, 101) is not used. I can do it. On the other hand, when the irradiated infrared ray is not received by the infrared light receiving device (12), it is determined that the toilet (1) is in use.

And it is judged that it is urination if the irradiated infrared rays are not received by the infrared light receiving device (12) for a relatively short time, and is used for defecation if it is a relatively long time.
If it is determined whether it is urination or defecation based on the length of time that the light is not received, and if the necessary amount of water is supplied to the toilet (1), more water than necessary is passed through the toilet (1). It can contribute to saving water and reducing carbon dioxide generation.

  Moreover, according to the toilet bowl washing | cleaning apparatus (100, 101) of this invention, the operation | movement of an infrared irradiation apparatus (11) is carried out by the photovoltaic device (17) with the light (sunlight and / or illumination) in the toilet (1) installation location. Since all necessary electric power can be covered, it is possible to operate the detection device (sensor unit 10) continuously for 24 hours, and it is not necessary to provide a large battery.

That is, since it is possible to generate electric power necessary to operate the detection device (sensor unit 10) by toilet lighting or natural light, an external power source for operating the detection device (sensor unit 10), such as a commercial power supply or a battery, is used. There is no need to provide it separately.
For example, since there is no need to separately provide a commercial power source or a battery, the toilet bowl cleaning device (100, 101) of the present invention has a high degree of freedom in layout even when it is installed in an area where there is not enough room such as a toilet. Become very expensive.

In the toilet bowl cleaning device (100, 101) of the present invention, the amount of water supplied from the toilet bowl (1) for passing filth such as defecation and urination depends on the time that the on-off valve for cleaning water (2) is open. The time during which the cleaning water on-off valve (2) is adjusted is controlled by the control device (21) (Claim 2).
Here, the on / off valve for washing water (2) is opened by the opening / closing operation rod (2a) moving (moving upward in FIG. 8). And by winding up the string-like member (3) attached to the opening / closing operation rod (2a), the opening / closing operation rod (2a) moves to open the cleaning water opening / closing valve (2). Is released.

Here, in the prior art, for example, a rack and pinion mechanism as shown in FIG. 16 or a cam and cam follower mechanism as shown in FIG. 17 is used to move the opening / closing operation rod (2a). ing. However, if the rack (7R) and pinion (7P) mechanism is used, the size of the rack part (7R) is too long. In the cam (8C) and cam follower (8F) mechanism, the cam (8C) takes up space. There is a problem of taking too much.
On the other hand, if it is this invention (invention of Claim 2), it has a flexible string-like member (3: When applied to a flush valve type toilet) The member or cable 3A) occupies an extremely small space, and moves the opening / closing operation member (operating rod 2a, float valve body 210a) with certainty so that the on / off valve for flush water (flush valve 2, float valve 210) is moved. Since it can be a predetermined opening, it can contribute to space saving.
For example, when applied to a tank-type toilet, the string-like member or the cable (3A) is disposed in the tank 201 and in the wiring location, and does not require a special occupied space.

Further, in the present invention, when a power failure occurs and the toilet (1) is used, when a predetermined time has elapsed since the detection of a human body, the flush water on-off valve (2) is opened and a predetermined amount of If it is configured to control the flow of water (a sufficient amount of water necessary for flowing defecation and urination) (Claim 3), inconvenience in the event of a power failure during the flight can be eliminated. .
That is, in the prior art, it is difficult to control the opening / closing of the cleaning water on-off valve (2) during a power failure. Therefore, if a power failure occurs after the stool before the water is flowed, the filth remains in the toilet (1) for a long time, which gives the user a very unpleasant feeling. On the other hand, if a power failure occurs while water is flowing, the washing water on-off valve (2) is fixed in an open state, and the water will not stop at all times, resulting in wasted water.

  On the other hand, when the toilet bowl (1) is in use and a predetermined time has elapsed since the power failure, the flush water on-off valve (2) is opened to provide a predetermined amount of water (necessary and sufficient for flowing stool). (A third amount of water) is allowed to flow (Claim 3), the filth in the toilet bowl is removed with the predetermined amount of water when a power failure occurs after the stool and before the flow of water. In the case of a power failure while water is flowing, the cleaning water on-off valve (2) is closed after the predetermined amount of water flows, so that the cleaning water may still be wasted. Is prevented. In any case, the above-mentioned inconvenience is solved.

In the toilet management system of the present invention having the toilet cleaning device described above (the toilet cleaning device 100, 101 of claim 3), the information processing device (30, 40) is provided, and the information processing device (30, 40) It is configured to process and store information transmitted from the control device (21) of the toilet bowl cleaning device (100, 101) and output information necessary for adjustment or setting of the toilet bowl cleaning device (100, 101). (Claim 4), information necessary for toilet maintenance such as the total number of times of use of the toilet bowl (1) where the toilet cleaning device (100, 101) having received the information is installed, the number of urinations or the number of defecations therein, etc. Can be obtained.
Thereby, it is possible to accurately grasp the inspection time, replacement time, etc. of the consumable parts.

Further, based on such information, it is possible to suitably perform adjustment of the amount of water for washing after stool (defecation, urination), setting of sound volume for guidance, and the like. Further, based on information necessary for toilet maintenance, the amount of water saved by using the toilet cleaning device of the present invention (the toilet cleaning device 100, 101 of claim 3), the amount of carbon dioxide emission reduced by the water saving, and the like are obtained. I can do it.
A management station is provided for each fixed area, and toilets having the toilet cleaning device (toilet cleaning devices 100, 101 of claim 3) can be collectively managed by the management station.

Furthermore, the toilet bowl cleaning device of the present invention has an advantage that it can be applied to flush valve type toilets and tank type toilets without changing the basic configuration.
When applied to a tank-type toilet, the toilet cleaning device of the present invention can be equipped regardless of the type, material, and layout of the tank.

  Hereinafter, a first embodiment of the present invention (embodiment applied to a flush valve toilet) will be described with reference to the accompanying drawings (FIGS. 1 to 12).

  First, referring to FIG. 1, a schematic configuration of a flush valve type toilet bowl cleaning apparatus denoted as a whole by reference numeral 100 will be described.

  In FIG. 1, a toilet cleaning device 100 includes a toilet 1, a flush valve 2 (washing water opening / closing valve), a sensor unit 10 that is a detection device that detects a toilet user M, and a robot body that is a flash valve opening device. 20 and a remote controller 30 which is an operation unit.

The flush valve 2 is interposed in a water supply pipe Lw for supplying water (clean water) to the toilet 1 and, when the flush valve 2 is operated by means described later, while measuring the amount of water to be supplied after defecation and urination. Open the valve to supply water to the toilet.
Here, in FIG. 1, the distance between the toilet 1 and the flush valve 2 and the water supply pipe Lw is increased, but this is deformed for ease of illustration, In the toilet bowl cleaning device 100, this does not mean that the distance between the toilet bowl 1 and the water supply pipe Lw between the flush valve 2 must be increased.

As shown in detail in FIG. 2, the sensor unit 10 includes a sensor head H including an infrared irradiation device 11 that emits infrared light and an infrared light receiving device 12 that receives reflected infrared light, and the infrared irradiation device. 11 and a casing C that houses a later-described sensor unit control device (sensor microcomputer) 13 that controls the infrared light receiving device 12.
In FIG. 2, the symbol W indicates, for example, a wall surface of a toilet.

  In the casing C, in addition to the sensor microcomputer 13, three amplifiers 14A (first amplifier), 14B (second amplifier), 14C (third amplifier), a comparator 15 as a comparison means, a timer 16, and It has.

Further, the casing C includes a photovoltaic power generation device 17 that generates electric power necessary for the operation of the infrared irradiation device 11 by light (sunlight and / or lighting) in the toilet where the toilet 1 is installed, and the photovoltaic power generation. A first power storage device (first capacitor) 18 that stores the power generated by the device 17 is provided.
Further, the casing C is also equipped with a manual switch 19A and an alarm switch 19B that are used when the automatic function stops functioning.

  Information detected by the sensor unit 10 is transmitted wirelessly to an infrared transmission / reception device 22 (to be described later) of the robot body 20 by an infrared transmission element 11Z provided in the sensor unit 10.

The infrared irradiation device 11 is connected to the sensor microcomputer 13 by a line Lo interposing the first amplifier 14A.
The infrared light receiving device 12 is connected to the sensor microcomputer 13 by a line Li interposing the second amplifier 14B and the comparator 15.

The photovoltaic power generation device 17 and the first power storage device (first capacitor) 18 are connected to the sensor microcomputer 13 via a line L1, and the sensor microcomputer 13 temporarily converts the power generated by the photovoltaic power generation device 17 into the first power. The first capacitor 18 is charged, and the infrared irradiation device 11 is irradiated with infrared rays with the stored electric power.
As described above, since the first capacitor 18 that stores the electric power generated by the photovoltaic power generation device 13 is provided in the sensor unit 10, it is possible to cope with a situation in which the discharge amount increases.

  The timer 16 is connected to the line action microcomputer 13 by a line L2, the manual switch 19A is connected by a line L3, and the alarm switch 19B is connected by a line L4.

Here, the infrared irradiation device 11 does not continuously irradiate infrared rays (for example, on the wall surface W of the toilet), but intermittently irradiates infrared rays at intervals set by the timer 16 (for example, predetermined Each time, the infrared ray is irradiated for 100 μs). For the infrared irradiation, the electric power generated by the above-described photovoltaic device 17 and once stored in the first capacitor 18 is used.
In other words, the sensor unit 10 converts sunlight and toilet lighting that are inserted through the toilet window into electric power by the photovoltaic power generation device 17 and uses it as driving electric power.

That is, the electric power used in the sensor unit 10 is covered by the power generation of the photovoltaic power generation device 17 and does not use commercial power, so that the power consumption of the toilet bowl cleaning device 100 can be greatly saved.
Since it is not necessary to use commercial power, the mounting position of the sensor unit 10 can be set regardless of the position of the commercial power outlet, so that the degree of freedom in layout is greatly improved. Therefore, the position optimal for human body detection can be set as the mounting position of the sensor unit 10.

  Although not shown clearly, the sensor unit 10 is configured by separating a circuit that requires standby current and a circuit that does not require standby current (lines L1, L3, L4, etc. in FIG. 2). The standby current can be saved.

  The signal from the light receiving device 12 is amplified by the amplifier 14B and sent to the comparator 15. The comparator 15 compares the signal from the light receiving device 12 with the first predetermined value and the second predetermined value. As will be described later with reference to FIG. 11, the first predetermined value and the second predetermined value are threshold values for determining whether urination, stool or toilet is not used, and the time when the human body is detected If it is less than the first predetermined value, it is determined that the toilet is not being used, if it is between the first predetermined value and the second predetermined value, it is determined to urinate, and if it is greater than or equal to the second predetermined value, defecation is performed. It is determined.

A signal from the light receiving device 12 and a comparison result (information) in the comparator 15 are transmitted to the microcomputer 13.
The amplifiers 14A and 14C amplify the signals on the lines in which the respective amplifiers are interposed, and send the amplified signals to the infrared transmitting elements 11 and 11Z.

  Here, since infrared rays cannot be visually observed, it is expected that it is difficult to appropriately set the infrared irradiation position when the sensor unit 10 is installed. On the other hand, in the illustrated embodiment, a visible light irradiation device 11X is provided in the sensor head H as shown in FIG. If visible light is irradiated from the visible light irradiation device 11X when the sensor unit 10 is installed, the visible light irradiation device 11X is provided in the vicinity of the infrared light emitting element 11. Therefore, when the sensor unit 10 is installed, the visible light irradiation device 11X is installed. If the visible light is irradiated from, the visible light irradiation position (visible) is in the vicinity of the infrared irradiation position. Therefore, the infrared irradiation position can be appropriately and suitably adjusted from the visible light irradiation position.

  In FIG. 3, reference numeral 11H denotes an irradiation port for irradiating infrared rays from the infrared irradiation device (light emitting element) 11, 12H denotes a light receiving port for receiving infrared rays to the infrared light receiving device (light receiving element) 12, and reference numeral 11XH denotes The irradiation port at the time of irradiating visible light is shown, respectively.

FIG. 4 is a diagram (control waveform diagram) showing the relationship between the light emission waveform (pulse waveform; pulse width is W1) F1 and the light reception waveform (pulse waveform; pulse width is W2) F2.
The light emitting element 11 is configured such that infrared rays reach a wide range. However, there may be a case where the infrared light emitted from the light emitting element 11 cannot be accurately received (received) on the light receiving element 12 side.

When light reception is not performed accurately, that is, when the light reception waveform is as indicated by reference numeral F2X in FIG. 4, the pulse width W2x of the light reception waveform F2x is narrower than the pulse width W1 of the light emission waveform F1. When the decrease rate Δw (the rate at which the pulse width W2x of the light reception waveform F2x is decreased with respect to the pulse width W1) is equal to or greater than the threshold value, a control error may occur.
The threshold is determined on a case-by-case basis.

  In order to avoid such a control error, as shown in FIG. 5, the sensor unit 10 is provided with a plurality of infrared light receiving devices (light receiving elements) 12 (two in FIG. 4) arranged opposite to each other. . By providing a plurality of light receiving elements 12, it is possible to prevent a situation in which infrared rays emitted from the light emitting elements 11 cannot be received due to the position of the light receiving elements 12. In FIG. 5, the infrared irradiation device (light emitting element) 11 is omitted.

  FIG. 6 shows a control waveform diagram in the case of one light emitting element and two light receiving elements. The uppermost stage is a pulse waveform F1 indicating the light emission time of the light emitting element 11, and the lower two stages are infrared received light waveform pulses F21 and F22 captured by the two light receiving elements.

As described above with reference to FIG. 5, when a plurality of infrared light receiving devices 12 are provided, in the illustrated embodiment, when all of the plurality of infrared light receiving devices 12 detect reflected infrared rays (the plurality of infrared light receiving elements 12 are Only in the case of “ON (there is a portion protruding upward in the pulse diagram)” or “reflected light detection”), the signal F20 indicating that the reflected infrared ray has been detected is output. In other words, an AND circuit as shown in FIG. 7 is configured).
As apparent from comparing the signal F20 (output of the AND circuit) in FIG. 6 with the pulse waveform F1 of the light emitting element 11, the signal F20 which is the output of the AND circuit accurately restores the pulse waveform F1 on the infrared irradiation side 11. is doing.

  Here, the logic “outputs a signal indicating that the reflected infrared rays are detected only when all of the plurality of infrared light receiving devices 12 detect the reflected infrared rays” is used to restore an accurate irradiation waveform on the infrared irradiation side 11. It is an example of logic. The logic is not limited to the above-described logic as long as it can restore an accurate irradiation waveform on the infrared irradiation side 11.

According to the above-described embodiment, the light (sunlight and / or illumination) at the place where the toilet 1 is installed can cover all the electric power necessary for the operation of the infrared irradiation device 11 by the photovoltaic device 17.
Therefore, it is possible to operate the sensor unit 10 continuously for 24 hours, and it is not necessary to provide a large battery.

That is, since electric power necessary to operate the sensor unit 10 can be generated by toilet lighting or natural light, it is not necessary to separately provide an external power source for operating the sensor unit 10, such as a commercial power source or a battery.
Since a commercial power source and a battery are not required, the degree of freedom in layout is increased even when the toilet bowl cleaning device 100 is installed in an area where there is not enough space.

8 and 9 show a side view and a front view of the flash body 2 that is driven to open and close by the robot body 20, that is, the flash valve opening / closing device (mechanism), and a drive portion of the flash valve 2. FIG.
FIG. 10 is a circuit diagram showing a detailed configuration of the interrupter 62 of the winding amount adjusting device 6 described later.

  8 and 9, the drive portion of the flash bulb 2 includes an opening / closing operation lever (lever) 2 a for the flash bulb 2, a flexible string-like member 3, and a winding for winding the string-like member 3. A take-up device (pulley) 4, an electric motor (DC motor) 5 that drives the pulley 4, and a take-up amount adjusting device 6 that stops the DC motor 5 when the string-like member 3 is wound by a predetermined amount by the pulley 4. , And.

Here, the string-like member 3 is a member that is attached to the opening / closing operation rod 2a, and applies a tensile force to the opening / closing operation rod 2a to move the flash valve 2 to the opening side.
The pulley 4 is fixed to the rotating shaft 5 a of the DC motor 5.
The DC motor 5 is a member belonging to the robot body 20 as apparent from FIG.

With reference to FIGS. 8-10, the detail of a structure of the winding amount adjustment apparatus 6 and the mechanism of winding amount adjustment are demonstrated. Here, in the embodiment described with reference to FIGS. 8 to 10, the winding amount adjusting device 6 is disposed on the front surface of the DC motor 5.
8 to 10, the winding amount adjusting device 6 includes a wheel 61 having a notch 61 a formed at one place, and two photo interrupters 62 that are notch detecting devices.

In FIG. 9, a rectangular notch 61 a is formed on the outer edge portion of the wheel 61. The wheel 61 is fixed to the rotating shaft 5 a of the DC motor 5, and the fixing position of the wheel 61 on the rotating shaft 5 a is closer to the motor 5 body than the pulley 4.
As shown in FIG. 9, the photo interrupter 62 is attached to each of the upper and lower positions on the front surface of the DC motor 5.
As shown by a region surrounded by a dotted line in FIG. 8 (region indicated by reference numeral 6 in FIG. 8), the photointerrupter 62 is roughly configured in a U shape (in the state shown in FIG. 8). It is installed in the hollow portion so as to sandwich the vicinity of the outer edge of the disk 61 with a gap.

  FIG. 10 is a diagram showing the photo interrupter 62 of the winding amount adjusting device 6 as an electric circuit. The photo interrupter 62 includes a light emitting diode portion 62 a and a light receiving diode portion 62 b, and light emission from the light emitting diode portion 62 a is blocked at a place other than the notch 61 a, and when the notch 61 a coincides with the photo interrupter 62. Furthermore, the light receiving diode 62b side receives (receives) the light emitted from the light emitting diode portion 62a, and generates a light receiving signal.

Referring to FIG. 8, the DC motor 5 starts rotating when the sensor unit 10 detects a user as will be described later, and winds the string-like member 3 by the pulley 4 fixed to the rotating shaft 5a. When the string-like member 3 is wound up, the lever 2a is pulled upward from the state of FIG. 8 to open the flash valve.
The rotation of the DC motor 5 is continued until the notch 61a coincides with the photo interrupter 62, that is, until the light receiving diode portion 62b receives light from the light emitting diode portion 62a.

  When the notch 61a coincides with the photo interrupter 62 and the light receiving diode 62b side generates a light receiving signal, the rotation of the DC motor 5 stops. In this state, the flush valve is open, and washing water flows in the toilet bowl. This state continues until the control unit 21 (see FIG. 1) outputs a control signal indicating that the DC motor 5 is rotated in the reverse direction.

  As will be described later, the control unit 21 determines whether it is defecation or urination, and based on the determination result, controls to rotate the DC motor 5 in the reverse direction (after the DC motor 5 stops). The time until the signal is output (waiting time: for example, 2 seconds for cleaning after urination) is determined. Then, the timer 28 in the control unit 21 determines whether or not the standby time has elapsed after the DC motor 5 is stopped, and the DC motor 5 is stopped and the flash valve is opened until the standby time has elapsed. Maintain state.

  When the standby time has elapsed, a control signal is generated from the control unit 21 (FIG. 1), the DC motor 5 is rotated in the reverse direction, and the string-like member 3 wound around the pulley 4 is wound up. The lever 2a is released to the state shown in FIG. 8, and the flush valve is closed. Accordingly, the supply of toilet flushing water is stopped.

According to the configuration shown in FIGS. 8 to 10, the rotation amount (rotation angle) of the wheel 61 or the timing at which the DC motor 5 stops is appropriately set depending on the position of the notch 61 a formed on the outer edge of the wheel 61. I can do it.
The wash water supply amount after defecation and the wash water supply amount after urination can be adjusted appropriately by setting a standby time with the timer 28 of the control unit 21 according to a rule of thumb or the user's request. .

  Here, when the flash valve 2 is opened, the tip of the lever 2a of the flash valve 2 is directed upward from FIGS. The notch 61a at that time is, for example, a position (position P) indicated by a broken line in FIG. Further, the rotation direction of the DC motor 5 when the flash valve 2 is opened is counterclockwise in FIG.

Next, referring to FIG. 1 again, the configuration of the robot body 20 other than the DC motor 5 will be described.
The robot body 20 includes a control means (control unit or microcomputer) 21 for controlling the robot body 20, an infrared transmitter / receiver 22, a voice guidance speaker 23, and a sound source IC chip 24 that causes the speaker 23 to generate specific sound. And.

  In addition, the robot body 20 includes a second storage battery (second capacitor) 25 for supplying power to the DC motor 5 in the event of a power failure, and a display unit 27 that displays 16 characters and two stages using LEDs, for example. A power failure detection unit 26 that detects the presence or absence of a power failure and a timer 28 incorporated in the robot body are provided.

Commercial power is supplied to the control unit 21 of the robot body via a power line Le connected to the commercial power supply 50, and a power failure detection unit 26 is interposed in the line Le.
The second capacitor 25 stores the electric power from the commercial power supply 50 and prepares for a power failure.
The power failure detection unit 26 always detects the presence or absence of a power failure. If there is no power failure, the power of the commercial power supply 50 is supplied to the DC motor 5 and others via the control unit 21.

  In the toilet flushing apparatus 100 according to the illustrated embodiment described above, the flush valve 2 for flowing filth such as defecation and urination from the toilet 1 moves the flush valve opening / closing operation rod 2a upward in FIG. The movement of the opening / closing operation rod 2a is controlled by winding the string-like member 3.

In order to move the opening / closing operation rod 2a, in the prior art, for example, a rack and pinion mechanism as shown in FIG. 16 or a cam and cam follower mechanism as shown in FIG. 17 is used. When such a mechanism is employed, a relatively large space is required.
On the other hand, in the first embodiment described above, the string-like member 3 occupies an extremely small space, and the opening / closing operation rod 2a can be reliably moved to bring the flash valve 2 to a predetermined opening. I can do it.

  Next, with reference to FIG. 11, the control which supplies the washing water to the toilet bowl 1 in 1st Embodiment is demonstrated. As will be described later, in such control, toilet usage data (each defecation, urination usage time, cumulative usage time, cumulative usage count, and equivalent amount of carbon dioxide emission reduction) are also stored and stored. It is supposed to do.

In step S1, it is determined whether or not a human body is detected based on information from the sensors 11 and 12 of the sensor unit 10.
When the toilet 1 is in use, the infrared light irradiated from the infrared irradiation device 11 of the sensor unit 10 is blocked by a person using the toilet. Can't reach 12.
Therefore, if the infrared light irradiated from the infrared irradiation device 11 is received by the infrared light receiving device 12, it can be determined that the toilet 1 is not being used. On the other hand, when the irradiated infrared rays are not received by the infrared ray receiver 12, it is determined that the toilet 1 is in use.

  In step S1, it waits until a human body is detected (step S1 is NO loop). If a human body is detected (YES in step S1), measurement of the elapsed time from human body detection is started (step S2). The process proceeds to step S3.

  In step S3, it is determined whether or not the human body detection is finished, and waits until the toilet user leaves the toilet (NO loop in step S3). If the toilet user leaves the toilet and the human body detection is finished. If (step S3 is YES), the process proceeds to step S4, where the time from the start of human body detection to the end of human body detection is determined and stored in the database.

In the next step S5, the control unit 21 determines whether the “time from the start of human body detection to the end of human body detection” (toilet use time) determined in step S4 is equal to or greater than a first predetermined value (for example, 10 seconds). Judge whether or not.
This first predetermined value is determined as the minimum time required for urination and defecation in the toilet, and when the toilet use time determined in step S4 is less than the first predetermined value (step S5 is NO) is judged as “no stool is used” or “the toilet is not used”, and the use of the toilet at that time is not counted in various data (step S9), and the process proceeds to step S12.

If the toilet use time is equal to or longer than the first predetermined value (YES in step S5), the process proceeds to step S6. In step S6, the control unit 21 determines whether or not the toilet use time determined in step S4 is equal to or longer than a second predetermined value (for example, 90 seconds).
The second predetermined value is set as a threshold value for discriminating between defecation and urination.

  When the toilet use time determined in step S4 is equal to or longer than the second predetermined value (step S6 is YES), the user determines that “defecation” has been performed (step S7), and increases the opening time of the flash valve 2. Then, a sufficient amount of water necessary for washing the stool is poured (step S8), and the process proceeds to step S12.

  More specifically, as described above with reference to FIGS. 8 to 10, when it is determined that “defecation” has been performed (step S <b> 7), the control unit 21 and the timer 28 perform the DC after the flash valve is opened. The waiting time corresponding to the time until the motor 5 reverses and the flush valve closes is set as the amount of water required to wash the stool. Then, after the DC motor 5 is rotated to open the flash valve and flush water, the flash valve is kept open until the standby time corresponding to “defecation” elapses.

  When the standby time corresponding to “defecation” elapses, the DC motor 5 is reversely rotated to return the lever 2a to the original position (position in FIG. 8: position before the string-like member 3 is wound) Close the flush valve, thus shutting off the toilet flushing water supply.

  If the toilet use time determined in step S4 is less than the second predetermined value, that is, if it is between 10 seconds and 90 seconds (NO in step S6), it is determined as “urination” in step S10, and the DC motor 5 Thus, the flush valve 2 is opened for a predetermined time, and a sufficient amount of water necessary for urination is passed (step S17), and the process proceeds to step S11.

The control for flowing a necessary and sufficient amount of water is the same as described in step S8. That is, when it is determined that “urination” has been performed (step S10), the control unit 21 and the timer 28 correspond to the amount of water required for urine washing, and correspond to the time from when the flush valve opens until it closes. The waiting time is set, and the flush valve is kept open during the waiting time.
When the standby time has elapsed, the DC motor 5 is rotated in the reverse direction, the lever 2a is returned to the position shown in FIG. 8, and the flash valve is closed.

In the control shown in steps S6 to S11, the time when the irradiated infrared ray is not received by the infrared light receiver 12 (the toilet use time determined in step S4) is relatively short (for example, 10 to 90 seconds). If it is urination (step S10), it is determined that it is defecation (step S7) if it is relatively long (eg, 90 seconds or longer).
Since the infrared light is not received by the light receiving side 12, it is determined whether it is urination or defecation, and a necessary amount of water is supplied to the toilet 1 based on these determinations. Therefore, it is possible to contribute to saving water and reducing the amount of generated carbon dioxide without flowing more water than necessary to the toilet 1.

In step S12, the timer 28 of the control unit 21 is on standby until 24 hours have passed (NO loop of step S12). If 24 hours have passed (YES in step S12), in step S13, 24 hours. Each defecation, urination usage time, cumulative time, cumulative usage count, etc. are stored, and the information data is transmitted to the database of the operation unit 30 or the management personal computer 40 by infrared communication. , Remember.
Then, step S1 and subsequent steps are repeated again to continue the control.

Next, control during a power failure in the first embodiment will be described.
In the prior art, since it is difficult to control the opening and closing of the flash valve at the time of a power failure, if a power failure occurs after the stool and before water flows, large and small urine will remain in the toilet forever. Also, if a power failure occurs while the cleaning water is flowing, the flush valve is fixed in an open state and the water does not stop.

On the other hand, in the first embodiment, when the toilet 1 is in use and a predetermined time has elapsed from the power failure, the flush valve is opened, and a sufficient amount of water necessary for flowing stool is allowed to flow, Thus, large and small urine in the toilet bowl is removed. Alternatively, the washing water is prevented from flowing and wasted.
Below, with reference to FIG. 12, the control at the time of the said power failure is demonstrated.

In FIG. 12, first, it is determined whether or not a human body has been detected based on information from the sensors 11 and 12 of the sensor unit 10 (step S21).
In step S21, the process waits until a human body is detected (NO loop in step S21). If a human body is detected (YES in step S21), the process proceeds to step S22.

In step S22, it is determined whether a power failure has occurred. If it is not a power failure (NO in step S22), the process returns to step S21.
In the case of a power failure (YES in step S22), the timer 22 starts counting time (step S23) to determine the elapsed time from the start of the power failure (step S23), and determines whether or not a predetermined time has elapsed since the start of the power failure ( Step S24).
While a predetermined time has elapsed since the start of the power failure (a loop in which step S24 is NO and step S25 is NO), if the power failure is resolved during that time (step S25 is YES), step S21 Return to.

When a predetermined time has elapsed from the start of the power failure (YES in step S24), the condition that “the toilet 1 is in use and the predetermined time has elapsed since the power failure” is satisfied. At such a stage, the time measurement by the timer 28 is terminated, and the washing water necessary and sufficient for washing the stool is supplied to the toilet 1 (step S26).
As a result, at least the situation where large and small urine remains in the toilet bowl is avoided.

  Here, even when the water for washing flows out, the flash valve is fixed in an open state, and even when the water does not stop, after supplying the water for washing into the toilet 1 in step S26, Since the control unit 21 (FIG. 1) rotates the DC motor 5 in the reverse direction to close the flush valve (see FIGS. 8 to 11), the supply of the cleaning water to the toilet 1 is surely stopped.

  As described with reference to FIG. 1, the second capacitor 25 stores the power from the commercial power supply 50 and prepares for a power failure. Therefore, at the time of a power failure, the second capacitor 25 stores the power stored in the second capacitor 25. It can be used to perform the above-described various controls and the rotation / reverse rotation of the DC motor 5.

Referring again to FIG. 1, the toilet management system according to the first embodiment is equipped with a remote controller (operation unit) 30 in the toilet bowl cleaning device 100, and a remote controller microcomputer 31 that is a control means for controlling the remote controller 30; An input key 32 (five in this embodiment), an infrared transmitter / receiver 33, a data storage database (ROM) 34, and a display unit 35 capable of displaying 16 characters in two stages are provided.
Here, information to be set in the toilet bowl cleaning device (for example, the amount of water for cleaning, the volume of voice guidance, etc.) is set or adjusted using the remote controller 30.

The remote controller microcomputer 31 stores information (usage count, urine usage count, stool usage count) necessary for grasping the usage status of the toilet 1 and uses the information as an information processing device for management. Transmission to a microcomputer (PC) 40 is possible.
The remote controller 30 and the management microcomputer 40 process the information transmitted from the control unit 21 of the robot body 20 via the infrared transmitters / receivers 22 and 33 and store the information in the database 34. It is configured to output information necessary for adjustment or setting.

Here, as the “information necessary for adjusting or setting the toilet bowl cleaning device”, water was saved by adjusting the amount of water for washing after defecation, setting the volume of voice guidance, and using the toilet bowl cleaning device 100 described above. Applicable to water volume.
In addition, the “information necessary for adjusting or setting the toilet bowl cleaning device” includes a carbon dioxide emission amount reduced as a result of water saving. This carbon dioxide emission is particularly important information when trading of carbon dioxide emission rights is performed.

Information necessary for toilet maintenance can be obtained from the total number of times the toilet 1 is used, the number of urinations, the number of defecations, etc., and the time for checking and replacing consumable parts can be accurately grasped.
In addition, based on such information, adjustment of the amount of water for stool after stool (defecation, urination), volume setting of voice guidance, etc. are input to the remote controller 30 to suitably adjust the amount of water and voice guidance. While being able to execute, the water saving amount by using the said toilet bowl washing | cleaning apparatus 100, the carbon dioxide emission amount reduced by water saving, etc. can be calculated | required.

  If such data is transmitted using an information network or the like, a management station is provided for each fixed area (for example, for each floor of the building), and the toilet having the toilet cleaning device 100 described above is collectively managed by the management station. It becomes possible.

Next, a second embodiment of the present invention will be described with reference to FIGS. 13 to 15 and FIG. The second embodiment is an embodiment applied to a tank-type toilet.
Prior to describing the second embodiment, a conventional drainage mechanism for a tank-type toilet will be described with reference to FIG.

In FIG. 18, a drainage fitting 202 is disposed at the bottom center in the tank main body 201. The drainage fitting 202 penetrates the inside and outside of the tank main body 201, and is entirely cylindrical and has an external thread formed on the outer diameter portion. A drain valve 203 is fixed above the drain fitting 202.
When the toilet is not used, the drain port (not shown) of the drain valve 203 is covered with the float valve body 210 a of the float valve 210. The float valve main body 210a is hemispherical both inside and outside, and is configured in a shell state in which the radius of the inner sphere (cavity) is formed to be the same as the diameter of the sphere of the drain valve.

  An overflow pipe 204 is connected to the open end 203a of the drain valve 203, and an upper end 204a of the overflow pipe 204 is disposed so as to protrude above the water surface Wf of the water stored in the tank body 201. ing.

The float valve 210 has two arm portions 210b, and a rotary shaft portion 210c is formed at the end of the arm portion 210b.
The rotary shaft portion 210c is rotatably supported by a bearing (not shown) formed on the drain valve 203 side.
The float valve body 210a is formed with a protrusion 210e, and the protrusion 210e is formed with an engagement hole 210d for engaging an end portion of a tension member described later.

The tension member that engages with the engagement hole 210d is a ball chain 220 in the example of FIG. One end of the ball chain 220 is engaged with the end of the drainage hook 230.
The drain hook 230 is integrated with a lever handle (not shown in FIG. 18) provided outside the tank body 201.
For example, the lever handle is operated counterclockwise in FIG. 18 after defecation, and the lever handle is operated clockwise in FIG. 18 after urination.

  In a state before the lever handle (not shown) is operated, the float valve 210 is pressed downward (drain valve 203 side) by water pressure, and the drain port (not shown) of the drain valve 203 is closed.

For example, if a lever handle (not shown) is operated after defecation, the float valve 210 is lifted upward via the drain hook 230 and the ball chain 220, and the drain valve 203 is opened greatly.
If the drain valve 203 opens greatly, the float valve 210 maintains a state where the spherical portion of the float valve main body 210a is in contact with the overflow pipe 204 (a so-called “standing” state) due to its own buoyancy.

The state where the float valve 210 is “standing” continues until most of the water in the tank 201 is discharged. When most of the water in the tank 201 is discharged, the float valve 210 returns to the position where the discharge valve 203 is closed by its own weight.
In the conventional system as shown in FIG. 18, in the case of defecation, most of the water in the tank 201 is discharged, which is contrary to “water saving”.

In the second embodiment, the tank-type toilet is configured to make “water saving” possible.
Hereinafter, the second embodiment will be described with reference to FIGS.
While applied to the flush valve type toilet of the first embodiment, the toilet bowl cleaning device of the second embodiment is applied to a tank type toilet (with the flush water tank 200 provided in the toilet 1). Accordingly, a mechanism for opening and closing a float valve 210 (described later) in the cleaning water tank 200 is different.
13-15, the same code | symbol is attached | subjected to the member similar to the tank type toilet demonstrated in FIG.

In FIG. 13, the toilet cleaning device is generally denoted by reference numeral 101 and has a tank body 201, and a float valve stop member 240 is disposed above the float valve 210 in the tank body 201.
The float valve stop member 240 includes a stop plate 241 located above the float valve 210, two legs 242 extending from both ends of the stop plate 241 and in contact with the tank bottom, a band member 243, It is constituted by.
FIG. 14 (viewed in the direction of arrow Y in FIG. 13) shows the front surface of the float valve stop member 240, and FIG. 15 (viewed in the direction of arrow Z in FIG. 13) shows the top surface of the float valve stop member 240.

  The band member 243 is configured such that both parallel ends 243 a and 243 a are flat, the remaining portion 243 b is formed in an annular shape, and the portion 243 b is wound around the overflow pipe 204. The entire float valve stop member 240 is fixed to the overflow pipe 204 by tightening the flat surface 243 a of the band member 243 with fixing bolts and nuts N.

A through hole 241a having a predetermined diameter is formed in the vicinity of the left end of the stop plate 241 in FIG. For example, a distal end 250a of a resin guide tube 250 is fitted and fixed in the through hole 241a.
The other end 250b of the guide tube 250 is drawn out of a tank from a through hole (not shown) formed in the tank body 201. For simplification of illustration, FIG. 13 shows only the vicinity of the tank body 201, but in the actual machine, the guide tube 250 extends to the vicinity of the robot body 20.

A wire cable 260 is inserted into the guide tube 250, and one end of the wire cable 260 is engaged with the engagement hole 210 d formed in the float valve 210.
The other end of the wire cable 260 is engaged so as to be wound up by the pulley 4 fixed to the electric motor 5 of the robot body 20. If the pulley 4 is rotated in the direction opposite to the direction in which the wire cable 260 is wound, the wire cable 260 can be fed out to the tank 201 side.

  Since the guide tube 250 through which the wire cable 260 is inserted has flexibility, it can be bent freely. Therefore, by rotating the pulley 4 fixed to the electric motor 5, a path for applying tension to the wire cable 260 can be set freely.

Here, in the wiring of the wire cable 260 from the float valve 210 to the pulley 4, when it is necessary to change the direction of the tension acting on the wire cable 260 with a very small radius of curvature, a desired tension acting direction changing point is obtained. In this case, for example, it is preferable that a tensile force is always applied to the wire cable 260 using the idler pulley 270 or the like.
Of course, the guide tube 250 into which the wire cable 260 is inserted may be arranged near the pulley 4 without providing the idler pulley 270.

  In FIG. 13, reference numeral 205 denotes a water stop cock, reference numeral 206 denotes a ball tap, reference numeral 207 denotes an auxiliary water pipe, and reference numeral 208 denotes a floating ball.

In the second embodiment shown in FIG. 13 to FIG. 15, after the use of the toilet is finished by the sensor unit 10, the cable wire 260 is wound up by the motor 5 and the pulley 4, and thus the float valve body of the float valve 210. The engagement hole 210d side of 210a is lifted until it comes into contact with a stop plate 241 located above the float valve 210.
As a result, the float valve 210 is opened and water flows into the toilet 1.

Also in 2nd Embodiment shown in FIGS. 13-15, similarly to 1st Embodiment, "the time from a human body detection start to a human body detection end" (toilet use time) measured by the sensor part 10 which is a detection apparatus. Thus, it is determined whether it is a stool or a urine.
Then, depending on whether it is determined to be stool or urine, the cable 5 is wound up by the motor 5 and the pulley 4 so that the float valve 210 is opened (the float valve 210). Is also determined.

When the predetermined float valve 210 opening time has elapsed, the motor 5 and the pulley 4 are fed in a direction to send out the wire 260 by a control signal from the control unit 21 (see FIG. 1; not shown in FIGS. 13 to 15). Rotates (reverses).
As a result, the float valve 210 is pressed downward by the water pressure in the tank 201 and returns to the closed position.

Here, in the case of a stool, in the case of a conventional tank-type toilet as illustrated in FIG. 18, the float valve 210 is lifted upward without any restriction, and is in a so-called “standing” state. The float valve 210 could not return to the closed position until the interior of 201 was substantially drained. For this reason, the water in the tank 201 has been substantially drained by the cleaning after one stool.
On the other hand, in the second embodiment of FIGS. 13 to 15, the float valve body 210 a of the float valve 210 can only be lifted until it abuts against the stop plate 241, so that the motor 5 reverses and feeds the wire 260. Thus, the water pressure in the tank 201 is immediately pressed downward to enter a closed state.

Therefore, in the second embodiment of FIGS. 13 to 15, all the water in the tank 201 is not drained, and only the amount necessary and sufficient for cleaning the filth in the toilet 1 can be drained. .
And since the appropriate amount of water remains in the tank 201 even after the end of drainage after stool, the recovery time (the time required for storing water for the next time) can be shortened, and the amount of water supplied during the recovery time can also be reduced. I can do it.
This saves water.

The flow and the movement amount or valve opening degree of the valve 210 in the second embodiment of FIGS. 13 to 15 are from the top of the float valve 210 when the drain valve 203 is closed to the lower surface of the stop plate 241 of the float valve stop member 240. It is set by the height dimension H.
The winding amount of the wire 260 set by the winding amount adjusting device 6 shown in FIGS. 8 to 10 is equal to or less than the height dimension H.

In the second embodiment of FIGS. 13 to 15, the amount of cleaning water after stool and the amount of cleaning water after urine are adjusted by the time during which the float valve 210 is open.
Therefore, it is not necessary to change the stop position of the float valve 210 between cleaning after stool and cleaning after urine.

In the second embodiment shown in FIGS. 13 to 15, the addition of the configuration to the conventional tank is small, and the additional work can be easily performed.
As described above, since the guide tube 250 into which the wire cable 260 is inserted has flexibility, the position of the robot body 20 with respect to the tank 201 (layout of the robot body 20) can be freely set. I can do it. Therefore, the robot body 20 can be freely arranged no matter how the tank type, material, and toilet layout are set.

Other configurations including the robot body 20 in the second embodiment of FIGS. 13 to 15 are substantially the same as those of the first embodiment. The configuration other than that described above is the same as that of the conventional tank toilet described with reference to FIG.
The operational effects other than those described above in the second embodiment of FIGS. 13 to 15 are the same as those of the first embodiment.

  It should be noted that the illustrated embodiment is merely an example, and does not limit the technical scope of the present invention.

1 is a block diagram showing an outline of the overall configuration of an embodiment of the present invention. The block diagram which shows the structure of the sensor part regarding embodiment. The perspective view of the sensor head regarding implementation carrying. The pulse waveform figure which showed the relationship between the light emission waveform and light reception waveform regarding embodiment. The perspective view of the sensor head which is an example of embodiment and provided two light receiving elements. It is an example regarding the embodiment, and is a pulse waveform diagram showing the relationship between the light emission waveform and the light reception waveform when two light receiving elements are provided. FIG. 7 is an AND circuit diagram when two light receiving elements related to FIG. 6 are provided. The side view of the drive part of the flash valve regarding an embodiment. The front view of the drive part of the flash valve regarding an embodiment. The circuit diagram which showed the detailed structure of the photo interrupter of the winding amount adjustment apparatus regarding embodiment. The flowchart explaining the flowing water (water saving) control method regarding embodiment. The flowchart explaining the monitoring of the amount of electrical storage of the sensor part of embodiment, and the control of the failure diagnosis regarding supply of the electric power used by a sensor part. The block diagram which shows the structure of the toilet bowl washing | cleaning apparatus of 2nd Embodiment. FIG. 14 is a view on arrow Y in FIG. 13. FIG. The front view of the flash valve drive part which performs opening and closing of a flash valve using a rack and pinion in a prior art. The front view of the flash valve drive part which performs opening and closing of a flash valve using a cam and cam follower in a prior art. The tank sectional view in the prior art of a tank type toilet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Toilet bowl 2 ... Flash valve 3 ... String-like member 4 ... Winding device / pulley 5 ... Transmission device / DC motor 6 ... Winding amount adjustment device 11 ... Infrared ray Irradiation device 12 ... Infrared light receiving device 13 ... Microcomputer for sensor unit 15 ... Comparator 16 ... Timer 17 ... Photovoltaic device 18 ... First storage battery / First capacitor 20. ..Flash valve opening device / robot body 21... Robot main body microcomputer 25... Second storage battery / second capacitor 26 .. power failure detection unit 30 .. operation unit / remote controller 40 ..・ Management PC

Claims (4)

  In a toilet flushing apparatus for flushing and washing after use of a toilet bowl, a detection apparatus for detecting use of the toilet bowl, a flush water on-off valve for supplying flush water to the toilet bowl in response to a detection result of the detection apparatus, An opening / closing valve opening device for cleaning water that opens the opening / closing valve for cleaning water, and the detection device includes an infrared irradiation device that irradiates infrared rays, and an infrared light receiving device that receives reflected light of the irradiated infrared rays. A toilet cleaning device, comprising: a photovoltaic power generation device that generates electric power necessary for the operation of the infrared irradiation device by light at a toilet installation location.   The cleaning water opening / closing valve opening device is attached to the opening / closing operation member of the cleaning water opening / closing valve and applies a tensile force to the opening / closing operation member to move the opening / closing valve for the cleaning water to the opening side. A winding device for winding the string-like member, an electric device for operating the winding device, and a winding amount for stopping the electric device when the string-like member is wound by a predetermined amount by the winding device. 2. The toilet flushing device according to claim 1, further comprising an adjustment device and a control device, wherein the control device is configured to control the electric device to adjust the flow rate of water and to close the on-off valve for washing water. apparatus.   It has a detection device that detects a power failure at a place where a toilet is provided, the opening / closing valve opening device for washing water has a power storage device, and the control device detects a power failure and detects a human body. Has a timing device that measures the elapsed time since then, and when a predetermined time has passed since the human body was detected, the on-off valve for cleaning water is opened to flow a predetermined amount of water The toilet bowl cleaning device according to claim 2, which is configured to perform   A toilet cleaning device according to claim 3 and an information processing device, wherein the control device in the toilet cleaning device stores information necessary for grasping a use situation of the toilet and stores the information in the information processing device. The information processing apparatus processes and stores information transmitted from the control device of the toilet bowl cleaning device, and outputs information necessary for adjustment or setting of the toilet bowl cleaning device. A toilet management system characterized by being configured.

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