JPH10311073A - Tank device for stool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tank device for stool capable of eliminating a ball tap and storing a specified amount of water. SOLUTION: A solenoid valve 3 to which a water feed pipe 2 is connected is installed on the upper left side surface of a tank main body 1. A turbine 4 is connected to the delivery side of the solenoid valve 3, and a power generator 6 is installed on the turbine 4. A rectifying circuit to convert an AC power from the generator 6 into a DC, a battery charged by the DC from the rectifying circuit, and a solenoid valve control circuit operated by a power from the battery are installed on a circuit substrate 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet tank device for supplying flush water to a toilet.

[0002]

2. Description of the Related Art In order to supply flush water to a toilet, a low tank is installed on the rear upper surface of a Western-style toilet, or a tank is installed on a wall near a toilet or inside a wall. Tap water or the like is supplied into the tank by a ball tap so as to reach a predetermined water level. When the discharge means such as the float valve device is operated, the water in the tank is discharged toward the toilet and the toilet is washed.

When the water level in the tank drops due to the discharge of water from the tank, the ball tap operates to open the valve, and tap water flows into the tank. When the discharging means is closed, the water level gradually rises, and the ball tap is opened.

As is well known, a ball tap is attached to the tip of a lever that swings up and down, and the valve is opened and closed by turning the lever up and down according to the level of the water. is there.

[0005]

The above-mentioned conventional toilet bowl device employing a ball tap as described above has the following problems.

[0006] Because the ball tap lever and the floating ball occupy a large volume, the inside of the tank is narrowed, and the degree of freedom of arrangement of the float valve device and the like is limited. There were also restrictions on the shape of the tank. When the tank is made of pottery, the dimensions of the tank vary widely, and the amount of stored water varies. If the amount of stored water is too large, water will be wasted, and if the amount of stored water is too small, there is a risk of insufficient washing of the toilet. When shipping the tank or assembling it on site, it is necessary to adjust the ball tap to adjust the amount of stored water (full water level), which is troublesome. In the case of a toilet tank device equipped with a float valve as a discharging means, if the water level in the tank drops to a certain extent after the start of discharging, the ball tap opens even though the water still remains in the tank, and new water supply is performed. Flows out to the toilet as it is. For this reason, excess water flows out toward the toilet and water is wasted.

An object of the present invention is to provide a toilet tank device that solves the above-mentioned problems.

[0008]

According to a first aspect of the present invention, there is provided a toilet tank device, comprising: a tank body for storing water supplied from water supply means;
In a toilet tank device having a discharge means for discharging water from the tank body, an electrically driven valve for water supply control provided in the water supply means, a water amount detection means for detecting an amount of water in the tank, Control means for operating the valve such that the water amount detected by the water amount detection means becomes a predetermined stored water amount.

In such a toilet tank device, the amount of water in the tank body is detected by the water amount detecting means, and the valve is controlled so that the amount of water is equal to the target amount. Can be stored.

[0010] The toilet tank device according to the second aspect is the first aspect.
Wherein the control means opens the valve after the release means performs the release stop operation.

In such a toilet tank device, the valve is opened after the discharge of water from the tank body is stopped. For this reason, new water supply is always stored in the tank body, and does not flow out directly to the toilet.

The toilet tank device according to the third aspect is characterized by the first aspect.
Or in 2, wherein a power generating means for generating power by a water flow flowing through the water supply means and a power storage means for storing power from the power generating means are provided, and the control means and the valve are operated by the power from the power storing means. It is characterized by the following.

[0013] In such a toilet tank device, electric power for driving the control means and the valve can be obtained from the power generation means, so that connection to a commercial power supply is unnecessary.

According to a fourth aspect of the present invention, there is provided a toilet tank device.
, Wherein the water amount detecting means detects the water amount based on the output of the power generating means.

In such a toilet tank device, a dedicated device for detecting the amount of supplied water is not required.

[0016]

FIG. 1 is a sectional view of a toilet tank device according to an embodiment. An electromagnetic valve 3 to which a water supply pipe 2 is connected is installed on the upper left side surface of the tank body 1. A turbine 4 is connected to the outflow side of the solenoid valve 3, and an outlet 5 of the turbine 4 opens downward. The generator 6 that is rotationally driven by the turbine 4 is
Attached to. A water level sensor 7 composed of an ultrasonic sensor is installed on the lower surface side of the solenoid valve 3, and measures a distance between the water level sensor 7 and a water surface WL in the tank body 1.

A circuit board 8 is provided on the upper surface side of the solenoid valve 3. The circuit board 8 is provided with a rectifier circuit for converting AC power from the generator 6 to DC, a battery charged by DC current from the rectifier circuit, and a solenoid valve control circuit operated by power from the battery. ing.

A washing handle 9 is attached to the upper right side surface of the tank body 1, and the upper end of a chain 11 is locked to the tip of a spindle 10 which is rotated by the washing handle 9.

At the bottom of the tank body 1, a float valve device 1 is provided.
2 is installed, and the lower end of the chain 11 is connected to the float 13. 14 is a seat portion on which the float 13 is seated, and 15 is an overflow pipe.

In the toilet tank device configured as described above, since there is no conventional ball tap, there is almost no restriction on the shape of the tank body 1. In addition, the float valve device 12
And the cleaning handle 9 can be installed in a desired arrangement. This toilet bowl device does not require connection to a commercial power supply.

Next, the operation of the toilet tank device will be described.

Operation at the time of large washing When the float 13 is lifted by turning the washing handle 9 to the large washing side, water in the tank body 1 is discharged toward the toilet. In the case of this large washing, the float 13 floats even if the hand is released from the handle 9, the discharge of water from the tank main body 1 continues, and the water level WL continues to decrease. Water level sensor 7
Thus, the lowering of the water surface WL is detected. Float 13
Is seated on the seat portion 14, and when the lowering of the water surface WL stops, the valve control circuit opens the solenoid valve 3. Water from the solenoid valve 3 flows out of the outlet 5 while rotating the turbine 4, and the water level in the tank body 1 rises. The rotation of the turbine 4 causes the generator 6 to generate power, and the generated power charges the battery on the circuit board 8. The valve control circuit of the circuit board 8 counts the wave number of the output (AC) of the generator, and accurately measures the amount of water flowing out from the outlet 5. When the count value reaches a predetermined value, the solenoid valve 3 is closed.
Thereby, a specified amount of water is stored in the tank body 1.

In this case, even if there is a dimensional error in the tank body 1, a specified amount of water is stored in the tank body 1.

Further, fresh water from the water supply pipe 2 is supplied into the tank main body 1 after the float 13 is seated on the seat portion 14, so that the outflow water from the outflow port must be once stored in the tank 1. Water is stored in the main body 1. That is, the effluent from the outlet 5 is not immediately discharged to the toilet directly, and the amount of tap water used can be reduced.

In the case of small washing When the washing handle 9 is turned to the small washing side, the float 13 is slightly pulled up, and water is discharged from the tank body 1 to the toilet only while the handle 9 is held in the pulled up state by hand. You. The decrease in the water surface WL during this time is detected by the water level sensor 7.

When the handle 9 is released, the float 13
Immediately sits on the seat portion 14, and the lowering of the water surface WL stops. When the water level sensor 7 detects the stop of the lowering of the water surface WL, the signal from the valve control circuit causes the solenoid valve 3 to stop.
Is opened, and water flows out from the outlet 5. In this case, the solenoid valve 3 is closed when the water level WL rises to a predetermined water level.

In the above embodiment, the solenoid valve 3, the turbine 4, the generator 6, and the like are arranged inside the tank body 1, but in the present invention, they may be arranged outside the tank body 1. When these devices are arranged outside the tank, a casing may be provided so as to surround the devices, and a human body detection sensor may be provided in the casing. According to this human body detection sensor, it is possible to perform automatic cleaning in which water is automatically released from the tank body when the human body is removed. In addition, it is also possible to perform a preliminary cleaning (pre-cleaning) of discharging a small amount of water to the toilet when a human body is detected.

In the above embodiment, an ultrasonic type water level sensor is used, but various types such as a water pressure detection type can be used.

[0029]

As described above, according to the present invention, the following various effects can be obtained.

The need for a ball tap is eliminated, and the degree of freedom in arrangement of the tank shape, the float valve device, and the like is increased. A specified amount of water can be stored. Therefore, it is not necessary to adjust the amount of stored water at the time of shipment or at the construction site. New water supply can be prevented from flowing directly to the toilet, and water can be saved (claim 2). The connection to the commercial power supply becomes unnecessary (claims 3 and 4). The means dedicated to water amount detection can be omitted (claim 4).

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a toilet bowl device according to an embodiment.

[Description of Signs] 1 Tank main body 2 Water supply pipe 3 Solenoid valve 4 Turbine 6 Generator 7 Water level sensor 8 Circuit board 12 Float valve device

Claims (4)

[Claims] 1. A toilet tank device having a tank body for storing water supplied from water supply means and a discharge means for discharging water from the tank body, wherein an electric drive type for water supply control provided in the water supply means. A valve, a water amount detecting means for detecting an amount of water in the tank, and a control means for operating the valve so that the water amount detected by the water amount detecting means becomes a predetermined stored water amount. Toilet tank device. 2. The toilet tank device according to claim 1, wherein the control means opens the valve after the discharge means stops discharging. 3. The control unit according to claim 1, further comprising: a power generation unit that generates power by a water flow flowing through the water supply unit; and a power storage unit that stores power from the power generation unit. And a tank device for a toilet bowl, wherein the valve is operated. 4. The toilet tank device according to claim 3, wherein the water amount detection means detects the water amount based on an output of the power generation means.