JP4114475B2 - Cleaning water supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning water supply apparatus for supplying cleaning water to a toilet bowl, and more particularly to a cleaning water supply apparatus that controls a water supply amount in three stages.
[0002]
[Prior art]
A flush valve has been used for a long time to flush the toilet bowl and flush the sewage in the toilet bowl to the drainpipe.However, in recent years, a flush valve has been used. Many automatic cleaning apparatuses that automatically detect a leaving or the like and perform cleaning are also being adopted.
[0003]
As a manual flush valve, when the handle is bounced up to one side (for example, to the left), the water in the low tank is discharged all at once, and when the handle is pulled up to the other side, the water in the low tank is released to the toilet only while it is pulled up. Many types are used. If this type is used, the toilet user can use the latter method to freely adjust the amount of water according to the type of stool, the amount of stool, the presence or absence of paper, and the like, thereby saving water. However, on the other hand, forgetting to wash or lack of washing water may occur.
[0004]
According to the type of the cleaning water supply apparatus that automatically detects the leaving of the human body and performs cleaning, it is preferable that the user does not forget to clean. Also in this automatic cleaning water supply system, the seating time of the seating sensor indicates whether the toilet was used for urination (use of stool) or urine (use of urine) to save water. Based on the determination result, a control system for supplying a large amount of cleaning water for large use and a small amount of cleaning water for small use is described in paragraph 0015 of JP-A-11-166258. ing.
[0005]
[Patent Document 1]
JP-A-11-166258 [0006]
[Problems to be solved by the invention]
In the above Japanese Patent Laid-Open No. 11-166258, the amount of water supply is switched to two stages, a large amount and a small amount. However, the present invention controls the water amount more finely in three stages, and saves water while ensuring the amount of water necessary for cleaning. The purpose is to further increase
[0007]
[Means for Solving the Problems]
Cleaning water supply apparatus of the present invention, and feces feed water valve, and control means for controlling the該便feed water valve, the wash water supply device having a Daiyo switch and urination switch gives a signal to the control means, toilet seat Means for discriminating whether the toilet seat is in a standing state or a lying state, and the control means reduces the amount of water supplied to the toilet when the toilet switch is operated when the toilet seat is in the standing state. When the small switch is operated when the small-sized switch is in a lying state, the toilet water supply amount is set to be medium, and when the large switch is operated, the toilet water supply amount is increased .
[0008]
According to the cleaning water supply apparatus of according the present invention, since the toilet water supply amount is switched over three levels, it is possible to further improve the water-saving effect while securing the water amount necessary for washing.
[0009]
The present invention is toilet use when the seat is standing is flights feed water quantity and "small" is regarded as a male urination, urination use of the toilet when the toilet seat is laid down in a Paper the urination flights feed water quantity is regarded as using a "medium", when the Daiyo switch is operated in which ordinary flights feed water quantity is regarded as large for use as "many". According to the present invention , two toilet cleaning switches provided on a remote controller or the like are sufficient for large and small ones.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, reference examples and embodiments will be described with reference to the drawings. FIG. 1 is an internal perspective view of a Western-style toilet equipped with a cleaning water supply apparatus according to a reference example , and FIG. 2 is a control block diagram of the cleaning water supply apparatus.
[0011]
A low tank cover 12 is installed on the rear upper surface of the western-style toilet 10, and a toilet seat 14 and a toilet lid (not shown) are attached to the low tank cover 12 so as to be rotatable in the vertical direction. A low tank 16 is installed in the low tank cover 12. A ball tap 20 to which a water supply pipe 18 is connected is attached to the upper portion of the low tank 16. The ball tap 20 is a well-known one that opens and closes according to the vertical movement of the floating ball 20a. A float valve device 22 is attached to the bottom of the row tank 16. The float valve device 22 has a valve seat portion 22a fixed to a water outlet on the bottom surface of the low tank, and a float valve 22b seated on the valve seat portion 22a from above. An overflow pipe 22c is erected upward from the valve seat portion 22a, and a stopper 22d for preventing the float valve 22b from rising is attached to the overflow pipe 22c.
[0012]
The float valve 22 b is connected to the tip of an L-shaped handle shaft 26 via a ball chain 24. A motor unit 30 for rotating the handle shaft 26 is attached to the upper side surface of the low tank 16. The handle shaft 26 passes through the motor unit 30. Although not shown, a toothless gear is fixed to the handle shaft 26 in the motor unit 30, and a gear on the driving side meshes with the toothless gear. The driving gear is rotated clockwise or counterclockwise by the motor.
[0013]
The rear end of the handle shaft 26 extends to the outside of the low tank cover 12.
A manual handle 32 is fixed to the rear end of the handle shaft 26 and can be manually operated by the same method of use as that of a conventional flash handle lever.
[0014]
Such a combination of the motor unit 30 and the manual handle 32 is well known and is already commercially available.
[0015]
In the raw tank cover 12, a hot water cleaning device (a device for cleaning the human body with warm water) is installed. This hot water cleaning apparatus has a cleaning nozzle 34 that can extend into the toilet bowl 10a.
[0016]
The low tank cover 12 is provided with a seating sensor 36 for detecting seating on the toilet seat 14 and a paper sensor 38 for detecting the presence or absence of toilet paper in the toilet bowl 10a. This paper sensor 38 detects, for example, paper falling in the toilet bowl 10a by infrared rays, or images the inside of the toilet bowl 10a with a CCD camera, and detects the presence of the paper from changes in the shape of the inner surface or liquid surface thereof. Can be used.
[0017]
On the wall surface of the toilet room, a remote controller 40 having a switch for performing a flash operation or a hot water washing operation (hereinafter sometimes referred to as a shower operation) is provided. In this embodiment, the remote controller 40 is provided with three switches, a large switch 42, a medium switch 44 and a small switch 46, as flash operation switches. The remote controller 40 is provided with a shower switch 48 for starting a shower operation and a stop switch 50 for stopping the shower operation.
[0018]
The operation signals of these switches 42 to 50 are transmitted to the motor control circuit 52 in the low tank cover 12 by infrared rays.
[0019]
When the large switch 42 is operated, the motor unit 30 rotates the handle shaft 26 in the clockwise direction to sufficiently raise the float valve 22b. Thereby, most of the water in the low tank 16 (about 8 L) is discharged to the toilet bowl 10a. When the water level in the low tank 16 decreases to near the bottom surface, the float valve 22b is seated on the valve seat 22a, and the water supplied from the ball tap 20 is stored in the low tank 16.
[0020]
When the intermediate switch 44 and the small switch 46 are operated, the motor unit 30 rotates the handle shaft 26 counterclockwise by a small angle and rotates the handle shaft by a small angle for a specified time. keep. When the handle shaft 26 is rotated by the small angle, the float valve 22b is lifted by a slight amount, and the water in the low tank 16 is discharged into the toilet bowl 10a only while the float valve 22b is being lifted.
[0021]
The lift state holding time of the float valve 22b when the middle switch 44 is operated is longer than when the small switch 46 is operated. When the middle switch 44 is operated, about 6 L of water is supplied to the toilet bowl 10a, and when the small switch 46 is operated, about 2 L of water is discharged to the toilet bowl 10a.
[0022]
Accordingly, the large switch 42 is operated after the user has performed a stool (used for general use), and the medium switch 44 is used when the user urinates and uses paper (used for medium use). The small switch 46 is operated when the user urinates and does not use paper (use of small size). The intermediate switch 44 needs to flow paper, but does not need to flush away stool, so the amount of water is set to 6L. The small switch 46 is set to 2 L because it is not necessary to flow the paper, and it is sufficient to simply wash the inner surface of the toilet bowl 10a and replace the trap water. This small use is typically a male small use.
[0023]
In this way, since the amount of water supplied to the toilet bowl 10a is switched over in three stages according to the toilet bowl usage mode, only a necessary and sufficient amount of water can be supplied to the toilet bowl 10a, and toilet bowl washing can be performed without excess or deficiency. It becomes possible and can save water.
[0024]
In this reference example , even when the switches 42, 44, and 46 are not operated, toilet cleaning is automatically performed when a predetermined time has elapsed after the user has left the seat. This separation is detected by the seating sensor 36. Although not shown in the drawings, in this reference example , the time from when the seating sensor 36 detects the seating of the toilet seat 14 to the time when the seating is detected, that is, when the toilet seater is seated on the toilet seat 14. A timer is provided to detect the time that has been spent.
[0025]
In this case, stool use (large use), paper use piss use (medium use), and paper use piss use (small use) are identified by the motor control circuit 52 as follows.
[0026]
That is, when the shower switch 48 is operated, it is determined that it is for heavy use. When the shower switch 48 is not operated, when the paper is not detected, it is determined to be small, and when the paper is detected, it is determined to be medium.
[0027]
Even when the shower switch 48 is not operated, when the sitting time of the toilet seat 14 detected by the timer exceeds the predetermined time and when the paper is detected, it is determined that the paper is detected and the paper is detected. In addition, when the seating time is less than the predetermined time, it is determined as medium use.
[0028]
In this case, the threshold of the seating time for determining that it is heavy, that is, the “predetermined time” is preferably about 50 seconds.
[0029]
Although not shown in the figure, a hot air drying device for drying the wet buttock etc. by hot water washing is provided in the raw tank cover 12, and the remote controller 40 is provided with a switch for performing hot air drying operation. is there. Even if no paper is detected in the toilet bowl 10a, when the switch for the hot air drying operation is operated, if the seating time on the toilet seat 14 of the toilet user exceeds a predetermined time, it is used as a heavy duty. When the seating time is less than the predetermined time, it is determined as medium use.
[0030]
As described above, since the toilet usage pattern is automatically determined and the water supply amount is controlled, only the necessary and sufficient amount of water can be supplied to the toilet bowl 10a and the toilet bowl can be washed without excess or deficiency. And can save water.
[0031]
In the above reference example , the low tank 16 is employed, but a high tank may be used. Further, even in the absence of the tank as in the embodiment of Figure 3 below may apply.
[0032]
In FIG. 3, the western-style toilet 60 includes a toilet bowl 62, a rim portion 64, a trap portion 66, and a jet hole 68 for jetting siphon-inducing jet water (jet water) toward the trap portion 66. The water supply pipe 70 can supply water to the rim portion 64 via the valve 72 and can supply water to the jet hole 68 via the valve 74.
[0033]
When the large switch 42 or the middle switch 44 is pressed, the valve 72 is first opened for a predetermined time, the bowl surface is washed by rim water supply, and then the valve 74 is opened for a predetermined time, generating siphon in the trap part. To discharge sewage and paper. Thereafter, the valve 72 is opened again for a short time to collect trap water. Also in this case, when the large switch 42 is operated, about 8 L of water is supplied in total, and when the medium switch 44 is operated, about 6 L of water is supplied in total.
[0034]
When the small switch 46 is pushed, only the valve 72 is opened for a required time, and the bowl surface is washed with about 2 L of water and the trap water is replaced.
[0035]
Also in FIG. 3, when the switches 42, 44, 46 are not operated, the toilet bowl 62 is automatically washed according to the usage mode .
[0036]
In the embodiment of the present invention , only two large switches 42 and small switches 46 are provided in the remote controller 40 as toilet flushing switches, the middle switch 44 is omitted, and instead the toilet seat 14 is raised, A toilet seat sensor 80 (FIG. 4) for detecting the fall is provided, and it is determined whether the toilet use mode at the time of operation of the small switch 46 is medium or small depending on the rising state of the toilet seat 14 .
[0037]
In the embodiment of FIG. 4, when the large switch 42 is operated, about 8 L of water is supplied to the toilet. When the small switch 46 is operated while the toilet seat 14 is in the lying state, about 6 L of water is supplied to the toilet, assuming that the toilet switch 14 is used for medium use. When the small switch 46 is operated while the toilet seat 14 is in the standing state, it is regarded as small use and about 2 L of water is supplied to the toilet.
[0038]
In addition, as the sensor 8 for determining whether the toilet seat 14 is standing or lying down, for example, an infrared sensor that is installed around the lower portion of the low tank cover 12 and detects the toilet seat 14 that has fallen down can be used. However, the present invention is not limited to this. Absent. As the raising / lowering sensor of the toilet seat 14, a sensor that detects the rotational phase of the hinge shaft of the toilet seat 14, a means that determines the raising / lowering based on the state of a driving device that electrically opens and closes the toilet seat 14, and the like can be used .
[0039]
【The invention's effect】
As the following, according to the cleaning water supply apparatus of the present invention, it is possible to sufficiently increase the water-saving effect while securing the water amount necessary for washing.
[Brief description of the drawings]
FIG. 1 is an internal perspective view of a Western-style toilet equipped with a cleaning / water supply apparatus according to a reference example .
FIG. 2 is a control block diagram of the cleaning / water supply apparatus of FIG. 1;
FIG. 3 is a side view of a Western style toilet bowl showing another reference example .
4 is a control block diagram showing the form of implementation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10,60 Western-style toilet 10a, 62 Toilet bowl 12 Low tank cover 14 Toilet seat 16 Low tank 20 Ball tap 22 Float valve device 26 Handle shaft 30 Motor unit 36 Seating sensor 38 Paper sensor 40 Remote control 64 Rim part 72, 74 Valve

Claims (1)

And feces feed water valve,
Control means for controlling the toilet water supply valve;
A large switch and a small switch for providing a signal to the control means;
In a cleaning water supply apparatus having
Has a means to determine whether the toilet seat is standing or lying,
The control means includes
When the toilet switch is operated when the toilet seat is in the standing state, the toilet water supply is reduced,
When the toilet switch is operated when the toilet seat is lying down,
A cleaning water supply apparatus characterized in that the toilet water supply amount is increased when the large switch is operated .

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