JPH11140940A - Toilet bowl cleaning system - Google Patents

Abstract

(57) [Problem] To provide a toilet flushing system which is sanitary without a push button or a flushing handle to be touched by a person and can save water. SOLUTION: A trap unit 3 provided at the bottom of a toilet body 1 for temporarily storing a predetermined amount of clean water, a wash water pipe 15 for supplying wash water to the toilet body 1, and a wash water pipe 15
, A pressure sensor 20 for detecting a pattern of a pressure change based on a water level change in the trap section 3, and a pressure change pattern based on a water level change in the trap section 3 detected by the pressure sensor 20. Control means for adjusting the degree of opening of the flow control valve 16 in accordance with the condition. The control means includes a judgment means for judging whether it is urine or stool based on the output of the pressure sensor 20. Based on the above, the flow control valve 16 is opened to supply the flush water corresponding to the amount of urine or stool to the toilet body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet bowl cleaning system.

[0002]

2. Description of the Related Art In general, in the case of a toilet bowl, flush water (generally, ordinary water) is allowed to flow from the inside of the toilet bowl in order to wash the toilet bowl after adding a toilet bowl. Has become. In order to wash water like this,
A user pushes a push button of a toilet flush valve disposed above the toilet body, or a certain amount of flush water is flushed by operating a flush handle disposed above the toilet body, There is a type in which a hand is brought close to a photoelectric sensor disposed above a toilet body, an electromagnetic valve is opened, and a certain amount of washing water is supplied.

[0003]

However, in the above-mentioned toilet bowl, a user presses a push button of the toilet flush valve or operates a flush handle arranged above the toilet body to keep the toilet flush. When flushing an amount of washing water, it is unsanitary for a person to directly touch the push button or the washing handle to perform the operation, and even if the person has not actually performed the addition, Irrespective of the amount of added water, there is a problem that the flushing water flowing is always constant, wasteful flushing water is flowing, and clogging of pipes and clogging of flushing water cannot be detected.

In the case of using a photoelectric sensor,
Although it is not unsanitary because it does not directly touch the sensor and perform the operation, even if the refill is not actually performed, and regardless of the amount of the refill, the flowing washing water is always constant, There was a problem that wasteful washing water was flown, and that clogging of the pipe and clogging of washing water could not be detected.

[0005] In addition, there are cases where the person who is using the toilet does not sit on the toilet seat, and this user falls down on the floor and dies.
The emergence of a means for monitoring the life and death of the user has been urgently requested.

The present invention has been made in view of the above-mentioned problems, and has as its object the absence of a push button or a cleaning handle to be touched by a person, which is sanitary, and in which the user forgets to flush. Provide a flushing system for toilets that can determine whether it is stool or stool from the pressure change pattern based on the water level change, and detect the amount and flush the flushing water according to it to save water. Is to do.

[0007]

To achieve the above object, a toilet flushing system according to the first aspect of the present invention comprises:
A trap unit provided at the bottom of the toilet body for temporarily storing a predetermined amount of water, a washing water pipe for supplying washing water to the toilet body, and a flow control valve provided in the washing water pipe. A toilet flushing system, comprising: a pressure sensor that detects a pressure change pattern based on a water level change in the trap section; and the flow rate according to a pressure change pattern based on a water level change in the trap section detected by the pressure sensor. Control means for adjusting the opening of the adjustment valve.

[0008] With this configuration, when refilling is performed, the urine or stool collected in the trap portion accumulates, and the water level rises. Then, the pressure sensor detects a pattern of a pressure change based on a water level change in the trap portion, and detects that urination or defecation has occurred. Therefore, the control means opens the flow control valve based on the detection result, and the washing water flows.

As described above, since the washing water flows automatically after adding a service (urine or stool), there is no push button or washing handle to be touched by a person, and it is sanitary, and there is no forgetting to flush. In addition, it is possible to determine whether the stool is a stool or a stool from the waveform of the water surface, and it is possible to save water by detecting even the amount of the stool and flowing flush water corresponding to the amount.

[0010] Further, there is a case where washing water is once poured as a noise canceler when a person adds a task. If there is no change in the water level before flushing the washing water, it is judged that the washing is for noise reduction and the amount of washing water is reduced. This saves water.

According to another aspect of the present invention, there is provided a flush toilet cleaning system according to a second aspect of the present invention, comprising: a trap portion provided at a bottom of a toilet body for temporarily storing a predetermined amount of water; A toilet flushing system having a flush water pipe for supplying flush water to a main body and a flow control valve provided in the flush water pipe, wherein a pattern of a pressure change based on a water level change in the trap section is detected. Pressure sensor, control means for adjusting the opening degree of the flow control valve according to a pressure change pattern based on a water level change in the trap portion detected by the pressure sensor, And a valve opening / closing means for directly controlling the opening / closing of the valve.

[0012] With this configuration, when refilling is performed, the urine or stool collected in the trap portion accumulates, and the water level rises. Then, the pressure sensor detects a pattern of a pressure change based on a water level change in the trap portion, and detects that urination or defecation has occurred. Therefore, the control means opens the flow control valve based on the detection result, and the washing water flows.

As described above, since the washing water flows automatically after adding a service (pee or stool), there is no push button or washing handle to be touched by a person, and it is sanitary and there is no forgetting to flush. In addition, it is possible to determine whether the stool is stool or stool from the pattern of the pressure change based on the water level change, and it is possible to save water by detecting even the amount and flushing the washing water according to the amount.

[0014] Further, there is a case where the washing water is once poured as a sound mute when a person adds a business. If there is no change in the water level before flushing the washing water, it is judged that the washing is for noise reduction and the amount of washing water is reduced. This saves water.

In addition, after adding a service (piss or stool), washing water corresponding to each amount flows automatically,
Although the washing is performed, when a person actively performs the washing, a predetermined amount of washing water can be flowed by operating the valve opening / closing means to perform the washing.

In order to achieve the above object, a urinal cleaning system according to a third aspect of the present invention is the urinal cleaning system according to the first or second aspect, wherein the pressure introducing section of the pressure sensor is provided. Was brought into contact with the pool water in the trap section.

With this configuration, not only the same effects as those of the first or second aspect of the present invention can be obtained, but also a pipe connecting the pressure introducing portion of the pressure sensor to the inside of the trap portion is not required. The cost can be reduced, and the maintenance and inspection of the pressure sensor are facilitated.

According to a fourth aspect of the present invention, there is provided a toilet flushing system according to the first or second aspect of the present invention, wherein the pressure sensor is provided with a pressure sensor. The introduction part is arranged on the upper wall of the trap drainage channel of the trap part so as to be in contact with the pool water in the trap part.

With this configuration, not only the same effects as those of the first or second aspect of the invention can be obtained, but also the pressure introduction portion of the pressure sensor is disposed on the upper wall portion of the trap drain passage. Therefore, the degree of interference of the flowing stool and the like with the pressure introducing portion of the pressure sensor is reduced, and clogging due to the pressure introducing stool and the like can be prevented.

According to a fifth aspect of the present invention, there is provided a flush toilet cleaning system according to the first or second or third or fourth aspect of the present invention. In the system, the control means includes a determination means for determining whether the urine is urine or stool based on the output of the pressure sensor, and based on the determination result, opens the flow control valve to open the urine or stool. The flush water corresponding to the amount of water was supplied to the toilet body.

With this configuration, not only can the same effects as those of the first or second aspect of the present invention be obtained, but also whether or not the stool or the stool is determined by the determination means based on the output of the pressure sensor. Then, based on the result of the determination, the flow control valve is opened to supply flush water corresponding to the amount of urine or stool to the toilet body, thereby saving water.

According to a sixth aspect of the present invention, there is provided a toilet bowl cleaning system according to the first or second aspect, the third aspect, the fourth aspect, or the fifth aspect. In the toilet bowl cleaning system, the control means includes:
The pressure change pattern based on the water level change of the water accumulated in the trap portion includes a comparing unit that determines whether or not the pressure exceeds a set value. At least one of the opening times was changed.

With this configuration, not only can the same effects as those of the first or second aspect of the present invention be achieved, but also the pressure change based on the water level change of the water accumulated in the trap portion by the comparing means. It is possible to determine whether or not the pattern exceeds a set value, and change at least one of the opening degree and the opening time of the flow control valve.

According to a seventh aspect of the present invention, there is provided a toilet bowl cleaning system according to the first or second aspect, the third aspect, the fourth aspect, or the fifth aspect. In the toilet bowl cleaning system, the control means includes:
A detection function for detecting the presence or absence of an abnormality in the washing water discharge system based on a pressure change pattern based on a water level change of the water accumulated in the trap portion or the toilet body, and an alarm based on a detection result of the detection function And alarm means for outputting an alarm.

According to this structure, not only the same effects as those of the first or second aspect of the invention can be obtained, but also the detection function has a pattern of the pressure change based on the water level change of the water accumulated in the trap portion. , The presence or absence of an abnormality in the washing water discharge system can be detected, and the alarm means can output an alarm based on the detection result. For example,
A buzzer can be sounded, or an alarm signal can be issued by wire or wireless to a remote monitoring room to notify the user that "the toilet may be out of order".

In order to achieve the above object, a toilet flushing system according to claim 8 of the present invention provides a toilet bowl cleaning system according to claim 1 or claim 2 or claim 3 or claim 4 or claim 5 or claim 5 or claim 5. 6. The toilet bowl cleaning system according to claim 6, wherein the control unit includes a determination unit configured to determine whether a person who is using the toilet is sitting on the toilet seat.

With this configuration, not only can the same effects as those of the first or second aspect of the present invention be provided, but also the determination means determines whether or not the person who is using the toilet is sitting on the toilet seat. If it is determined that the person who is doing business is not sitting on the toilet seat, this person may fall to the floor and die, and it is possible to monitor the life and death of the user it can.

According to a ninth aspect of the present invention, there is provided a toilet flushing system according to the ninth aspect of the present invention. The sensor means detects that the user is sitting on the toilet seat, and the sensor means is monitored by the monitoring equipment via the communication means.

With this configuration, it is possible to obtain not only the same operation and effect as those of the eighth aspect of the present invention, but also to monitor whether the person who is using the toilet is sitting on the toilet seat via the communication means. In some cases, the person who is not working is not sitting on the toilet seat, but this person falls down on the floor and dies, and the life and death of the user can be sensed.

[0030]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIGS. 1 to 5 show Embodiment 1 of a toilet bowl cleaning system according to the present invention.
FIG. 1 is a longitudinal sectional view of a first embodiment of a toilet bowl cleaning system according to the present invention, and FIG. 2 is a configuration explanatory diagram of a pressure sensor in the toilet bowl cleaning system.

The toilet S has a toilet body 1 whose upper surface is opened so as to receive stool. The toilet body 1 includes a tank component 2, a bowl 4 having a trap 3, and a tank 4. A drain pipe section 5 located below the component section 2 and in front of the bowl section 4 is integrally formed. The tank component 2 is located at the front of the toilet main body 1, and the lower surface of the tank component 2 constitutes the inner top surface 6 of the toilet main body 1.

The trap portion 3 comprises a concave portion 7 at the bottom of the ball portion 4 and a trap drainage channel 8.
The trap drainage channel 8 is connected to an inlet 5a of the drainage pipe 5 via a weir 8A at the front. The trap drainage channel 5 includes a front inclined surface portion 8a of the weir portion 8A, a drainage channel upper wall portion 9 protruding from the ceiling portion 6 into the concave portion 7, a left portion of the concave portion 7,
It is surrounded by the right wall 10.

A rim water supply chamber 11 is provided at a lower portion of the tank constituting section 2, and a rim water passage 12 communicating with the rim water supply chamber 11 is formed at an upper peripheral portion of the ball portion 4.
A plurality of water outlets 13 are formed at a lower portion of the rim water passage 12 at predetermined intervals in a circumferential direction. Tank component 2
A tank 14 is provided at an upper portion of the tank. The tank 14 communicates with the rim water supply chamber 11 through a washing water pipe 15, and a flow rate adjusting valve 16 composed of an electromagnetic valve is attached to the washing water pipe 15. . Further, a toilet seat 17 is arranged at an upper portion of the bowl portion 4.

When the flow control valve 16 is opened, the washing water is supplied from the washing water pipe 15 through the rim water supply chamber 11 and the rim water passage 12 to the bowl portion 4 from the plurality of water outlets 13. When the washing water is supplied to the bowl section 4 in this manner, the water level of the bowl section 4 rises and the water is discharged to the drain pipe section 5 side beyond the weir section 8A of the trap drain passage 8. The air in the trap drainage channel 8 is discharged from the drainage pipe portion 5 to a drainage pipe (not shown) together with the drainage, and the inside of the trap drainage channel 8 is in a negative pressure state with respect to the atmospheric pressure. As a result, the pool water is drawn into the trap drainage channel 8, and the trap drainage channel 8 is filled with drainage. When the flow control valve 16 is closed, the supply of the flush water into the toilet body 1 is stopped.

Here, in the present invention, the flow control valve 16
When it is open, its opening can be adjusted. By adjusting the opening degree (or opening time) in this way, the flow rate of the washing water flowing per unit time is adjusted. The opening degree (or opening time) is adjusted based on a control signal output from the pressure sensor (small pressure sensor unit) 20.

A pressure introduction pipe 21 is connected to the pressure introduction side of the pressure sensor 20. An introduction port 21A, which is a pressure introduction section at the end of the pressure introduction pipe 21, is located on the front side of the weir 8A of the trap drainage channel 5. The inlet 21A is disposed in the middle of the inclined surface portion 8a, and opens into the pool water F in the trap drainage channel 5 via the filter 22. The pressure sensor 20
Is provided with a capacitance-type minute pressure sensor unit 23 having a movable electrode and a fixed electrode, and the movable electrode is moved by receiving water pressure to move due to a change in a gap between the movable electrode and the fixed electrode. Is used as the sensor output.

The pressure sensor 20 includes a low pressure sensor section (semiconductor pressure sensor section) 23 and a signal processing circuit as a discriminating means for performing predetermined signal processing on an output signal from the low pressure sensor section 23. Determining the amount of washing water at the time of addition, the presence or absence of an abnormality, and the like, and determining the opening degree (or opening time) of the flow control valve 16 according to the determination result;
A signal is sent to the flow control valve 1 so that the determined opening degree is obtained.
6 to send.

That is, the pressure sensor 20 has a case 24 as shown in FIG. 2, and the case 24 is provided with the pressure introducing pipe 21. The pressure introducing pipe 21 communicates with the input side of the minute pressure sensor unit 23, and the output side of the minute pressure sensor unit 23 is connected to a high-pass filter (HPF).
25 and the input side of the setting comparison circuit 26. The high-pass filter (HPF) 25 extracts a characteristic amount (a signal corresponding to a pressure value) based on a minute change in the water surface, and sends the extracted characteristic amount to a waveform determination circuit 27 in the next stage. The waveform discrimination circuit 27 calculates data for predicting a normal state and a clogged state of a discharge part (drainage system) based on the given pressure information, that is, water level information (water level), and calculates the result of the calculation as a valve control circuit 28. To be output.

The waveform discriminating circuit 27 has a sampling circuit (not shown). In this waveform discriminating circuit 27, a sensor output signal (high-pass filter (H
The waveform of the water level change as a standard water level (after the PF) through the sampling circuit (pressure change pattern based on the water level change), and the water level change waveform generated during urination (pattern of the pressure change based on the water level change) , Waveform of water level change generated during stool (pressure change pattern based on water level change)
(B) and a waveform of a change in the water level of the washing water (a pattern of a pressure change based on the water level change), which is expected to be clogged with the discharge portion.

The waveform of the water level change occurring at the time of urination (pressure change pattern based on the water level change) (a) changes with time into a standard mountain shape as shown in FIG. The pressure change pattern based on the pressure rises rapidly in the initial stage as shown in FIG. 4 (the rising water level changes suddenly), changes at the highest point b 'after stabilizing for a certain period of time, and then suddenly decreases. I do. In addition, the waveform C of the water level change (pressure change pattern based on the water level change) of the washing water expected to be clogged with the discharge portion rapidly increases in the initial stage as shown in FIG. 5 (the rising water level change is steep). , Then change to gradually increase.

Then, the valve control circuit 18 determines the amount of washing water at the time of large or small urine based on the data on the given washing water, obtains a necessary valve opening degree, and controls the flow regulating valve 8. It outputs a signal.

That is, the water level data (pressure value) in the normal state, the water level data (pressure value) generated during urination, the water level data (pressure value) generated during stool, and the cleaning water expected to be clogged at the discharge part Since the electric signal corresponding to the water level data (pressure value) is output from the micro-pressure sensor section 13, these electric signals are compared with a set value by a waveform discriminating circuit 27 as a comparing means, or a differential value of the waveform is obtained. Is output to the valve control circuit 28 by distinguishing between urine and stool and clogging of the discharge part depending on whether or not it exceeds.

When the flow control valve 16 is opened by the valve control circuit 28, the washing water is supplied from the washing water pipe 15 through the rim water supply chamber 11 and the rim water passage 12 to the bowl portion 4 from the plurality of water outlets 13. Then, the water level of the bowl portion 4 rises, and urine or stool is discharged to the drain pipe portion 5 side through the weir portion 8A of the trap drainage channel 8.

On the other hand, the setting comparison circuit 26 compares the data (pressure value) of the water level in the normal state with the pattern of the pressure change based on the water level change for estimating the clogged state of the discharge section. In such a case, an abnormal signal is output to the valve control circuit 18 and the alarm output circuit 19.

In other words, the data of the current water level (normal water level) is equivalent to the pressure, and an electric signal corresponding to the pressure is output from the micro-pressure sensor unit 23. Connect to the input terminal of Since the electric signal based on the water level, i.e., the pressure, when estimating the clogged state of the discharge portion is known, a value lower than that by a certain margin is given to the other input terminal of the comparator as a set value. . Thus, when the sensor output has finished the set value, the output of the comparator becomes high level H, and an abnormal signal can be output.

Then, the valve control circuit 28 which has received the abnormal signal from the setting comparison circuit 26 issues a control signal to the flow regulating valve 8 stating "opening = 0 (close the valve)". Further, the alarm output circuit 29, which has received the abnormal signal from the setting comparison circuit 26, sounds a buzzer or issues a warning signal by wire or wireless to a monitoring room at a remote place. "Yes" and so on.

As described above, according to the first embodiment,
Since the washing water flows automatically after adding a toilet (piss or stool), there is no push button or washing handle to be touched by a person, and it is sanitary and there is no forgetting to flush. In addition, it is possible to determine whether the stool is a stool or a stool from the waveform of the water surface, and it is possible to save water by detecting even the amount of the stool and flowing flush water corresponding to the amount.

Further, there is a case where the washing water is once poured as a noise canceler when a person adds a task. If there is no pressure change based on the water level change before the flushing water flows, it is determined that the cleaning is for noise reduction and the flushing water is reduced. This saves water.

Further, it is possible to detect a clogging of the discharge section from a rise in pressure based on a change in the water level, to issue an alarm, or to temporarily stop the washing water to prevent overflow.

According to the first embodiment, as described above, the inlet 21A of the terminal of the pressure introducing pipe 21 of the pressure sensor is located at the middle of the front inclined surface 8a of the weir 8A of the trap drainage channel 5. However, the inlet 21 </ b> A may be arranged on the upper wall 9 of the trap drainage channel 8 of the trap section 3 so as to be in contact with the stored water F in the trap section 3.

In this case, the inlet 21A of the pressure sensor
The degree of interference between the flowing stools and the like is reduced, and the inlet 2
It is possible to prevent clogging due to the stool 1A or the like.

(Embodiment 2) FIG. 6 shows Embodiment 2 of a toilet bowl cleaning system according to the present invention. FIG. 6 is a longitudinal sectional view of a toilet bowl cleaning system according to a second embodiment of the present invention.

In the second embodiment of the toilet bowl cleaning system according to the present invention, in addition to the first embodiment, whether the person who is using the toilet is alive (toilet seat 7
) Is added to the determination means. Since other configurations are the same as those of the first embodiment of the toilet bowl cleaning system described above, the same reference numerals are given and the description is omitted.

This determination means is performed when the person (user)
Sensor 31 for detecting that the user is sitting on the toilet seat 17
Alternatively, a pressure sensor 32 for detecting that a person is sitting on the toilet seat 17 of the toilet S is provided. In the case of the photoelectric sensor 31, the photoelectric sensor 31 is attached to a position where a person sitting on the toilet seat 17 of the toilet S can be detected, for example, on the side wall of the toilet. The pressure sensor 32 is set on the toilet seat 17 of the toilet S.

A plurality of toilet bowls S are provided with a photoelectric sensor 31 for detecting that a person is sitting on the toilet seat 17 or a pressure sensor 32 for detecting that a person is sitting on the toilet seat 17 of the toilet bowl S. Alternatively, they may be centrally managed.

In this case, an output signal is input to the controller from the pressure sensor 32 provided in each toilet S.
A communication network (a public telephone line for a wide area, a building automation / home automation line for a facility) is connected to the controller via a communication unit.
In a monitoring room at a remote place, the life and death of the user is sensed by a signal transmitted from the controller by communication.

(Third Embodiment) FIG. 7 shows a third embodiment of a toilet bowl cleaning system according to the present invention. FIG. 7 is a longitudinal sectional view of a toilet system cleaning system according to Embodiment 3 of the present invention.

In the third embodiment of the toilet bowl cleaning system according to the present invention, in addition to the above-described first and second embodiments, the toilet system is seated on the toilet seat 17 of the toilet S. A human actuates a cleaning switch or a photoelectric sensor 30 as a valve opening / closing means to send a signal to the valve control circuit 28 to control the opening / closing time of the flow control valve 16. That is, for use (piss or stool)
After adding, the washing water corresponding to each amount flows automatically and performs washing, but when a person actively performs washing,
The cleaning switch or the photoelectric sensor 30 is operated to control the flow control valve 16 to flow a predetermined amount of cleaning water to perform the cleaning. Since other configurations are the same as those of the first embodiment of the toilet bowl cleaning system described above, the same reference numerals are given and the description is omitted.

[0060]

As described above, according to the toilet bowl cleaning system according to the first aspect of the present invention,
The water level rises due to accumulation of urine or stool discharged in the trap section. Then, the pressure sensor detects a pattern of a pressure change based on a water level change in the trap portion, and detects that urination or defecation has occurred. Therefore, the control means opens the flow control valve based on the detection result, and the washing water flows.

As described above, since the washing water flows automatically after adding a service (pee or stool), there is no push button or washing handle to be touched by a person, and it is sanitary and there is no need to forget to wash. In addition, it is possible to determine whether the stool is stool or stool from the pattern of the pressure change based on the water level change, and it is possible to save water by detecting even the amount and flushing the washing water according to the amount.

Further, there is a case where the washing water is once flowed as a noise canceler when a person adds a task. If there is no pressure change based on the water level change before the flushing water flows, it is determined that the cleaning is for noise reduction and the flushing water is reduced. This saves water.

According to the toilet flushing system of the second aspect of the present invention, when the toilet is refilled, the urine or stool collected in the trap portion accumulates and the water level rises.
Then, the pressure sensor detects a pattern of a pressure change based on a water level change in the trap portion, and detects that urination or defecation has occurred. Therefore, the control means opens the flow control valve based on the detection result, and the washing water flows.

As described above, since the washing water flows automatically after the use (piss or stool) is added, there is no push button or washing handle to be touched by a person, and it is sanitary and there is no need to forget to flush. In addition, it is possible to determine whether the stool is stool or stool from the pattern of the pressure change based on the water level change, and it is possible to save water by detecting even the amount and flushing the washing water according to the amount.

Further, there is a case where the washing water is once poured as a sound mute when adding a business by a person. If there is no pressure change based on the water level change before the flushing water flows, it is determined that the cleaning is for noise reduction and the flushing water is reduced. This saves water.

Further, after adding the service (piss or stool), the washing water corresponding to each amount flows automatically,
Although the washing is performed, when a person actively performs the washing, a predetermined amount of washing water can be flowed by operating the valve opening / closing means to perform the washing.

According to the urinal cleaning system according to the third aspect of the present invention, not only the same effects as those of the first or second aspect of the present invention can be obtained, but also the pressure introduction of the pressure sensor. Since no pipe is required to connect the pressure sensor and the inside of the trap, the cost can be reduced and the maintenance and inspection of the pressure sensor can be facilitated.

According to the flushing system for a toilet bowl according to the fourth aspect of the present invention, not only the same effects as those of the first or second aspect of the invention described above can be obtained, but also the pressure of the pressure sensor can be improved. Since the introduction part is disposed on the upper wall of the trap drainage channel, the degree of interference of the flowing stool and the like with the pressure introduction part of the pressure sensor is reduced, and clogging due to the pressure introduction stool and the like is prevented. Can be.

According to the toilet bowl cleaning system of the fifth aspect of the present invention, not only the same effects as those of the first or second aspect of the present invention can be obtained, but also the determination means Determine whether urine or stool based on the output of the pressure sensor, and based on the result of the determination, open the flow rate adjustment valve and flush water corresponding to the amount of urine or stool to the toilet body. Can supply and save water.

According to the flushing system for a toilet bowl according to the invention of claim 6, not only the same operation and effect as the above-mentioned invention of claim 1 or 2 can be obtained, but also the comparison means by the comparing means. It is possible to determine whether the pattern of the pressure change based on the change in the water level of the water accumulated in the trap portion exceeds a set value, and to change at least one of the opening degree and the opening time of the flow control valve.

According to the flushing system for toilet bowls according to the seventh aspect of the present invention, not only can the same effects as those of the first or second aspect of the present invention be provided, but also the detection function is trapped. The presence or absence of an abnormality in the washing water discharge system is detected based on a pressure change pattern based on a change in the water level of the water accumulated in the unit, and the alarm unit can output an alarm based on the detection result. For example, a buzzer can be sounded, or a warning signal can be issued by wire or wireless to a monitoring room at a remote location to notify the user that "the toilet may be out of order".

According to the toilet bowl cleaning system of the eighth aspect of the present invention, not only the same operational effects as those of the first or second aspect of the present invention can be obtained, but also the determination means It can be determined whether the person who is using the toilet is sitting on the toilet seat, and if it is determined that the person who is using the toilet is not sitting on the toilet seat, this person falls to the floor and dies. In some cases, the user's life and death can be monitored.

According to the flushing system for a toilet bowl according to the ninth aspect of the present invention, not only can the same operational effect as the above-mentioned eighth aspect of the present invention be exerted, but also a person who uses the toilet seat can use the toilet seat. It is possible to monitor whether or not you are sitting on a monitoring facility via communication means, and if you are not sitting on the toilet seat, this person may fall to the floor and die, The life and death of the user can be sensed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of a toilet bowl cleaning system according to the present invention.

FIG. 2 is an explanatory diagram of a configuration of a pressure sensor of the toilet flushing system.

FIG. 3 is a waveform diagram of a change in the water level of the flush water during urination in the pressure sensor.

FIG. 4 is a waveform diagram of a change in the water level of flush water during stool in the pressure sensor.

FIG. 5 is a waveform diagram of a change in the water level of the washing water expected to be clogged at the discharge portion in the pressure sensor.

FIG. 6 is a cross-sectional view of a toilet bowl cleaning system according to a second embodiment of the present invention.

FIG. 7 is a cross-sectional view of a toilet bowl cleaning system according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toilet main body 3 Trap part 15 Cleaning water piping 16 Flow control valve 20 Pressure sensor

Claims (9)

[Claims] 1. A trap unit provided at a bottom of a toilet body for temporarily storing a predetermined amount of water, a flush water pipe for supplying flush water to the toilet body, and a flow rate adjustment provided in the flush water pipe. A toilet flushing system having a valve, comprising: a pressure sensor that detects a pattern of a pressure change based on a water level change in the trap portion; and a pressure change pattern based on a water level change in the trap portion detected by the pressure sensor. And a control means for adjusting the opening of the flow rate adjusting valve according to the condition. 2. A trap unit provided at the bottom of the toilet body for temporarily storing a predetermined amount of water, a washing water pipe for supplying washing water to the toilet body, and a flow rate adjustment provided on the washing water pipe. A toilet flushing system having a valve, comprising: a pressure sensor that detects a pattern of a pressure change based on a water level change in the trap portion; and a pressure change pattern based on a water level change in the trap portion detected by the pressure sensor. Control means for adjusting the opening of the flow control valve in accordance with the condition, and valve opening / closing means for allowing a user of the toilet to directly control the opening and closing of the flow control valve. system. 3. The toilet flushing system according to claim 1, wherein the pressure introducing portion of the pressure sensor is in contact with the pool water in the trap portion. 4. The trap according to claim 1, wherein a pressure introducing portion of the pressure sensor is disposed on an upper wall portion of a trap drainage passage of the trap portion, so that the pressure introducing portion comes into contact with water stored in the trap portion. Toilet bowl cleaning system. 5. The system according to claim 1, wherein the control unit includes a determination unit configured to determine whether the urine is urine or stool based on an output of the pressure sensor. The toilet flushing system according to claim 1, wherein the flush water corresponding to the amount of the stool is supplied to the toilet body. 6. The control means includes comparing means for determining whether a pattern of a pressure change based on a change in the level of water accumulated in the trap section exceeds a set value, and determines whether the pattern exceeds a set value. The toilet flushing system according to claim 1, wherein at least one of an opening degree and an opening time of the flow control valve is changed. 7. A detection function for detecting whether there is an abnormality in the washing water discharge system based on a pressure change pattern based on a water level change of water trapped in the trap section or the toilet body, 7. An alarm means for outputting an alarm based on the detection result of the detection function.
A flushing system for a toilet bowl according to claim 1. 8. The control device according to claim 1, wherein the control device includes a determination device configured to determine whether a person who is using the toilet is sitting on the toilet seat. 5
Or the flushing system for toilet bowls according to claim 6 or 7. 9. The apparatus according to claim 8, wherein said judging means is a sensor means for detecting that a person is sitting on the toilet seat of the toilet, and this sensor means is monitored by monitoring equipment via communication means. The flush system for a toilet bowl as described.