JPS6346776Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water supply and drainage valve that automatically switches pipe lines by operating a water pump and using water pressure and the weight of the valve body.

Normally, expensive solenoid valves must be used to automatically switch piping lines, and switching multiple lines at the same time requires multiple solenoid valves and the electrical wiring is complicated. There was a drawback.

The present invention was devised in view of these conventional drawbacks, and its configuration consists of a cylinder with a somewhat small diameter valve chamber concentrically provided within a cylinder with a water supply and drainage socket provided on one side, and a lower cylinder connected to the lower part of the valve chamber. A water supply socket is provided on one side of the body, and a cap is removably attached to the lower end, and a plurality of discharge ports communicating with the valve chamber are formed on the upper circumference of the cylinder, and at the upper end there is a cap with a diameter smaller than that of the valve chamber. A lid body having a valve stopper is removably attached, and a catch part is formed in the lower part of the valve chamber to restrict the downward movement of the valve body housed in the valve chamber so as to be movable up and down.
A plurality of water supply holes are provided on the lower circumference of the valve chamber so as to open when the valve body is positioned upward, and a plurality of drainage holes are provided on the upper circumference of the valve chamber so as to open when the valve body is positioned downward. It is characterized by:

Therefore, while the water pump is operating, the water pressure pushes the valve body in the valve chamber upward, closes the drain hole, and opens the water supply hole to send water to the water supply and drainage socket, but the water pump stops operating. Then, the valve body descends under its own weight and automatically switches the pipe, closes the water supply hole and opens the drain hole, allowing water from the water supply and drainage socket side to be drained from the outlet.

An example of the present invention will be described based on the drawings.
A valve chamber 5 of a slightly small diameter is located concentrically within a cylinder 1 provided with a water supply and drainage socket 2 on one side, thereby forming an annular passage 3 between the valve chamber 5 and the cylinder 1. At the lower part of the valve chamber 5, a hooking part 6 protrudes toward the center to form a communication hole 4 in the center, and a water supply pipe ( A water supply socket 8 (not shown) is formed, and a cap 9 is removably attached to the lower end via a seal 10.

A plurality of discharge ports 11 are formed on the upper peripheral surface of the cylindrical body 1, and a lid 12 is removably attached to the upper end via a seal gasket. Valve stopper 13
A passage 20 is formed between the upper part of the valve chamber 5 and the valve stopper 13 by projecting its lower end slightly into the inside of the valve chamber 5.

15 is a valve body housed in the valve chamber 5 so as to be able to slide vertically, and a weight 16 is placed inside to overcome the buoyancy of water.
A plurality of drainage holes 18 are provided on the upper circumference of the valve chamber 5, and a plurality of water supply holes 19 are provided on the lower circumference of the valve chamber.

Next, to explain the operation of this embodiment, water is pumped into the valve chamber 5 by the pressure of water fed from the water feed socket 8 connected to the water feed pipe (not shown) connected to the water feed pump (not shown). The accommodated valve body 15 is pushed up until it abuts against the valve stopper 13, closing the drain hole 18 and the passage 20 (second
) to open the water supply hole 19. Therefore, the water from the water pump is transferred to the water supply socket 8, the lower cylinder body 7, the valve chamber 5, the water supply hole 19, the annular passage 3, and the water supply and drainage socket 2.
The water is temporarily stored in a water storage tank (not shown) through a pipe (not shown). This water tank is located above the top surface of the lid 12.

When the water supply from the water pump is stopped, the water pressure acting on the lower surface of the valve body 15 disappears, and the valve body falls under its own weight, and is hooked to the hooking part 6 to open the water supply hole 19 provided on the lower peripheral surface of the valve chamber. Then, the communication hole 4 is closed (FIG. 3), and the drain hole 18 and the passage 20 are opened. For that reason,
The water in the water tank located higher than the discharge port 11 is drained into the water supply and drainage socket 2 and the drainage hole 1 due to the difference in height.
The water enters the valve chamber 5 through the passage 20 and is discharged to the outside through the outlet 11, and is collected in a water tank (not shown).

That is, when the valve body 15 is raised by the water pressure generated by the operating pump, the water supply hole 19 provided on the circumferential surface of the valve chamber 5 closes and the drain hole 18 is opened, and when the operating pump is stopped, the valve body 15 is lowered by its own weight and is latched onto the latching portion 6, thereby closing the communication hole 4 that communicates the valve chamber 5 and the water supply socket 8, and opening the drain hole 18 provided on the circumferential surface of the valve chamber 5. You can easily switch pipes.

As described above, the present invention can reduce the size of the entire device by shortening the distance that the valve body moves up and down, and in addition, by stopping the operation of the water pump, the water supply to the water supply and drainage socket can be stopped. In addition, the water that enters from the water supply and drainage socket can be automatically discharged from the discharge port provided at the top of the cylinder body, and by operating the water supply pump, multiple pipes can be In addition, switching from water supply to drainage is extremely easy and the structure is simple, so there are fewer breakdowns, and even if the drain hole or water supply hole becomes clogged, there is no need to remove the pipe, and the lid can be removed. It has the advantage that the body and cap can be removed and repaired easily.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is an overall front view, Fig. 2 is a sectional view showing the state switched to water supply, and Fig. 3 is a sectional view showing the state switched to drainage. , FIG. 4 is a sectional view of the main part. DESCRIPTION OF SYMBOLS 1... Cylindrical body, 2... Water supply and drainage socket, 5... Valve chamber, 6... Latching part, 8... Water supply socket, 9...
Cap, 11...Discharge port, 12...Lid, 13
... Valve stopper, 15 ... Valve body, 18 ...
Drainage hole, 19...water supply hole.

Claims (1)

[Scope of utility model registration request] A valve chamber 5 of a slightly small diameter is provided concentrically within a cylinder body 1 which has a water supply and drainage socket 2 on one side, and a water supply socket 8 is provided on one side of a lower cylinder body 7 connected to the lower part of the valve chamber 5. A cap 9 is detachably attached to the lower end, a plurality of discharge ports 11 communicating with the valve chamber are formed on the upper circumferential surface of the cylinder 1, and a valve stopper 13 having a smaller diameter than the valve chamber 5 is provided at the upper end. Lid body 12
A hook 6 is formed at the lower part of the valve chamber 5 to restrict the downward movement of the valve body 15, which is removably attached and housed in the valve chamber 5 so as to be movable up and down, and opens when the valve body is positioned upward. A water supply and drainage valve is provided with a plurality of water supply holes 19 on the lower circumferential surface of the valve chamber so as to be open, and a plurality of drainage holes 18 are provided on the upper circumferential surface of the valve chamber so as to open when the valve body is positioned downward.