JPH0464782A - Quantitative stop cock - Google Patents

Abstract

PURPOSE:To obtain a quantitative stop coil easy to handle and having a high reliability without requiring many mechanical rotation parts by composing it of a pushbutton, a flow detecting means, an accumulation circuit, a quantity setting means, an excitation circuit, and an electromagnet. CONSTITUTION:When a pushbutton 6 is pushed, a ball 3a is pushed, and a valve 3 is opened to discharge water. A lock mechanism 8 is composed of an engagement part 6a and a plunger 7a to engage the lower end of the plunger 7a with the engagement part 6a for locking the pushbutton 6 at this time. A flow detecting means 13 is composed of a turbine 4 and a DC power generator 12. During discharge of water, an electric energy in proportion to a flow is accumulated in the accumulation circuit 14 by the flow detecting means 13, and when a terminal voltage of a capacitor C1 reaches a predetermined value, a coil 7c is energized to move the plunger 7a up and release locking of the pushbutton 6. The pushbutton 6 is then moved right by a back string 9 to restore, and the ball 3a sets in contact with a valve seat 3b to close a valve 3 and stop discharge.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a metered water stop valve device that automatically stops water supply when a preset amount of water flows.

[Conventional technology]

2. Description of the Related Art A water stop device disclosed in Japanese Patent Application Laid-Open No. 63-43082 is well known, which automatically stops the water supply when a desired water level is reached when tap water is supplied to a bathtub. This water stop device includes a valve casing that can be attached to a water faucet in a liquid-tight manner at its upstream end, a valve seat provided in the water channel of the valve casing, and a movable valve seat provided upstream of the valve seat. a spherical valve body that engages with the valve seat to shut off water, a pallu blonde extending downstream beyond the valve seat, a string with one end attached to the valve rod, and the other strings. A float is attached to an end, and only when the float is not receiving a predetermined buoyancy force, the weight of the float releases the engagement between the valve body and the valve seat via the valve rod, and water flows out. It is equipped with a guide that guides the user along the line.
When the water level rises to the level of the float suspended by a string and the float receives buoyancy, the valve body engages with the valve seat, automatically stopping the water supply.

Further, an automatic water shutoff device equipped with a water shutoff valve that shuts off water when a predetermined amount of water is discharged is well known from Japanese Utility Model Application Publication No. 57-171469. This automatic water stopper consists of an impeller that is rotationally driven by fluid flowing inside the container, a gear train that decelerates the rotation of this impeller, a cam that is rotated by the output shaft of this gear train, and a cam that is rotated by the output shaft of this gear train. It consists of a ball valve mechanism that opens and closes as a driven control rod advances and retreats. When the preset amount of water is reached, the control rod moves back and the ball valve engages the valve seat, automatically shutting off the water. I was supposed to.

[Problem to be solved by the invention]

Among the above conventional techniques, the former has a problem in that the float suspended by a string gets in the way and is difficult to use (or inconvenient).

In addition, the latter has many mechanical rotating parts such as impellers, gear trains that combine many gears in multiple stages, and cams that are linked to setting dials, and dirt and foreign objects in the water flow can adhere to these rotating parts. This poses a problem in that smooth operation is obstructed, or in the worst case, it becomes inoperable and does not perform the function that should automatically shut off the water by metering.

Therefore, in order to solve the above-mentioned problems, the present invention provides a metered water stop valve device that is easy to use and has high reliability, without requiring a float suspended from a string or many mechanical rotating parts. The purpose is to

[Means to solve the problem]

In order to achieve the above object, the metered water stop valve device of the present invention includes a hand push button (6) for opening and closing the valve (3);
A flow rate detection means (13) that detects the flow rate and converts it into electrical energy, and a storage circuit (13) that stores the electrical energy.
14), a water amount setting means (15) for adjusting the current of the electricity storage circuit (14), and an excitation circuit (19) that operates when the electricity storage value of the electricity storage circuit (14) reaches a certain value; The push button (6) has an electromagnet (7) that is excited by an excitation circuit (19), and a plunger (7 (7)) that moves the electromagnet (7) by excitation of the magnet (7). The engaging portion (6(7)) is provided with an engaging portion (6(7)) that engages with the
and the plunger (7 (7)) form a locking mechanism (8) that locks the position of the push button (6), and the plunger (7 (7) It engages with the engaging part (6 (7)) and locks in the forward position, and when the electromagnet (force is excited), the plunger (7 (7) moves and disengages from the engaging part (6 (7) and releases the push button. The locking mechanism (8) is configured to release the lock (6).

[Effect]

When the push button (6) is pushed forward by hand, the valve (3) opens and water flows. At the same time, the plunger (7 (7)) engages with the engaging portion (6 (7)) of the push button (6), and the plunger (7 (7)
) in the forward position. Therefore, water continues to flow even if you release your hand from the push button. Therefore, the flow rate detection means (13) generates electrical energy corresponding to the flow rate, that is, the flow rate per unit time. This electrical energy is stored in a power storage circuit (14). The storage tit flow of the electricity storage port 1 (14) is adjusted by the water amount setting means (15), and when the electricity storage value reaches a certain value, the excitation circuit (19) is activated and the electromagnet (
7] is excited, the plunger (7 (7) moves, and the engaging part (
6 (7) and unlock the push button (6).

The push button (6) is then retracted, closing the valve (3) and stopping the flow.

〔Example〕

Typical embodiments are shown in FIGS. 1 and 2. In FIG. 1, 1 is a faucet casing, 2 is a water channel provided in the faucet casing 1, 3 is a valve provided in the middle of the water channel 2, and a ball 3a
and valve seat) 3b.

Reference numeral 4 denotes a turbine provided downstream of the valve 3 in the water channel 2, which rotates at a speed corresponding to the flow rate, that is, the flow rate per unit time.
5 is a water outlet, and fluid is discharged from the water outlet 5 through a valve 3 in the water channel 2 and a turbine 4. Reference numeral 6 denotes a manual push button, and when it is pushed to the left in the figure and moved to the position shown in the figure, the left end of the push button 6 pushes the ball 3a and is moved to the position shown in the figure, opening the valve 3 and releasing water. Reference numeral 6a denotes an engaging part consisting of a notched groove provided in the push button 6, and the lower end of the plunger 7a of the electromagnet 7 fixed to the faucet casing 1 is the engaging part 6a.
to lock the push button 6 in the position shown in the figure.
A locking mechanism 8 is configured by the engaging portion 6a and the plunger 7a. 7b is a spring that always urges the plunger 7a downward and presses the lower end of the plunger 7a against the push button 6; 7c is the coil of the electromagnet 7; 9 is the push button 6;
A back spring that always urges the push button 6 to the right in order to return the faucet casing 1 and the push button 6, and 10 is a sealing material made of an O-ring to maintain watertightness between the faucet casing 1 and the push button 6. In addition, in order to prevent the push button 6 from coming off from the faucet casing 1 when the lock mechanism 8 is unlocked, a stopper is provided to limit the amount of rightward movement of the push button 6 within a certain limit. is attached to the faucet casing l, but is not visible in FIG. Reference numeral 12 denotes a DC generator that converts the rotation of the turbine 4 into electrical energy, the rotor of which is connected to the rotating shaft of the turbine 4, and the turbine 4 and the DC generator 12 constitute a flow rate detection means 13. . The turbine 4 rotates at a rotation speed proportional to the flow rate per unit time, and the generated voltage of the DC generator 2 is proportional to the rotation speed of the turbine 4. Reference numeral 14 denotes a power storage circuit that is stored with the electrical energy from the DC generator 12 of the flow rate detection means 13, and 15 represents a water amount setting means for adjusting the stored current of the power storage circuit 14, which is connected to the power storage circuit 14 by an electric wire 16. , is composed of a variable resistor as described later. Reference numeral 17 denotes a setting dial for operating the water amount setting means 15, and a scale 17a indicating the water supply amount is provided on the outer periphery of the setting dial. 18 is a bathtub.

FIG. 2 shows an electric circuit, in which 7 is a magnet 1 and has a coil 7c. 12 is a DC generator, 14 is a diode D,
and a capacitor C8, 15 is a water amount setting means made of a variable resistor, and a diode DI + a variable resistor vR0 capacitor C as the water amount setting means 15, and a DC generator 12 are connected in series as shown in the figure. There is.
The time constant obtained by multiplying the resistance value of the variable resistor VR by the capacitance of the capacitor CI is compared to the time required to supply the set water volume set with the setting dial 17 with the stop valve of the present invention. It is set to a relatively long value. Diode D, the electric charge stored in capacitor CI is used as DC generator 1.
This is to prevent backflow to 2.

Reference numeral 19 denotes an excitation circuit to which variable resistors VR, , resistor RI, thyristor SI, and diode D2 are connected as shown. The coil 7C of the electromagnet 7 is connected to the thyristor SI of the excitation circuit 19 as shown.

The variable resistor vRz divides the terminal voltage of the capacitor C1 to determine the voltage applied to the gate of the thyristor S1.
Also, resistor R1 limits the gate current of thyristor S1. When the gate voltage exceeds a certain level, the thyristor S1 becomes conductive and causes an excitation current to flow through the coil 7C.

That is, when the terminal voltage of the capacitor CI reaches a certain value, the thyristor S becomes conductive, and the electric charge of the capacitor C0 is discharged to the coil 7C through the thyristor Sl, thereby exciting the coil 7C. The diode D2 is for absorbing the surge voltage generated in the coil 7C.

If the push button 6 is pushed to the left from the open state of the valve 3, it will be locked by the plunger 7a as shown in Figure 1, and the knob 6C of the push button 6 will be rotated in either the left or right direction. , so that you can manually remove the lock.
The push button 6 has a structure in which a notch groove 6a is carved in the cylindrical shaft.

When the push button 6 is in the return position, the ball 3a comes into contact with the seat surface of the valve seat 3b having a conical seat surface, the valve 3 is closed, and water discharge is stopped.

When the push button 6 is pressed, the ball 3a moves to the left position shown in the figure, the valve 3 opens, and water discharge begins.

At the same time, the plunger 7a of the locking mechanism 8 engages with the engaging portion 6a and the locking mechanism is locked, so the push button 6 remains in the illustrated position and continues discharging water. During water discharge, the turbine 4 of the flow rate detection means 13 rotates at a speed proportional to the flow rate per unit time, and the electrical energy from the DC generator 12 is stored in the storage circuit 14.

The operator rotates the setting dial 17 to adjust the scale to the desired water amount value. By doing this, the water amount setting means 15
is set. The water amount setting means 15 is a variable resistor VR.
, and the current stored in the capacitor C1 is adjusted according to its resistance value.

This charging current is proportional to the generated voltage, which is proportional to the rotation speed of the impeller 4, that is, the rotation speed of the DC generator 12, and is inversely proportional to the resistance value of the variable resistor VR. The larger the scale indicating the amount of water on the setting dial 17 is set, the higher the value of the variable resistor Vl11. setting dial 17 and variable resistor VR to increase the resistance value.

are linked.

As the water progresses, electricity is stored in the capacitor CI, and when the terminal voltage (storage value) of the capacitor C1 reaches a certain value, it is divided by the variable resistor νR2 and the voltage applied to the gate of the thyristor S becomes the gate voltage. When the threshold voltage is exceeded, the thyristor S becomes conductive, and the electric charge in the capacitor C1 flows to the coil 7c through the thyristor S1, thereby exciting it. When the coil 7c is excited in this way, the plunger 78 rises against the spring 7b, and the push button 6
Unlock.

Then, the back spring 9 moves the push button 6 to the right and returns, and the ball 3a contacts the valve seat 3b, closing the valve 3 and stopping water discharge. At the same time, the impeller 4 and the DC generator 12 stop, and the electrical energy stored in the capacitor C1 is discharged through the coil 7c, so that the thyristor S cannot maintain conduction and becomes cut off.

〔Effect of the invention〕

Since the quantitative stop valve device of the present invention is configured as described above,
A push button, a flow rate detection means, a power storage circuit, a water amount setting means, an excitation circuit, and an electromagnet are easily built into the faucet casing, and there are no obstructive additions on the outside of the faucet, so the faucet looks neat. Furthermore, since a multi-speed gear train is not used, there is no failure due to adhesion of dust, etc., and reliability is improved. Furthermore, since the flow rate detection means is not subject to the rotational torque of a gear train, cam, etc., the amount of fluid used can be measured with high precision.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, FIG. 1 is a vertical side view, and FIG.
The figure is an electrical circuit diagram. 3...Valve, 6...Push button, 6a...Engagement part, 7
... Electromagnet, 7a... Plunger, 8... Lock mechanism, 13... Flow rate detection means, 14... Power storage circuit,
15... Water amount setting means, 19... Excitation circuit

Claims (1)

[Claims] 1. A manual pushbutton (6) for opening and closing the valve (3), a flow rate detection means (13) for detecting the flow rate and converting it into electrical energy, and a power storage circuit (14) for storing the electrical energy; A water amount setting means (15) for adjusting the current of the electricity storage circuit (14), an excitation circuit (19) that operates when the electricity storage value of the electricity storage circuit (14) reaches a certain value, and the excitation circuit (19). ), and a plunger (7a) that moves due to the excitation of the electromagnet (7), and the push button (6) has an engaging portion (6a) that engages with the plunger (7a). ), the engaging portion (6a) and the plunger (7a) form a locking mechanism (8) that locks the position of the push button (6), and the valve (3) is moved forward by hand.
) is opened by the plunger (7a) and the engagement part (6
a) to lock in the forward position, and when the electromagnet (7) is energized, the plunger (7a) moves and engages the engaging portion (6a).
), the locking mechanism (8) is configured to release the lock of the push button (6).