JPS5812945Y2 - water hydrant - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a water faucet that allows air to be sucked in in order to drain water between an antifreeze faucet and a water faucet such as a faucet to the antifreeze faucet side.

In cold regions, the water in the water supply pipes freezes, so the water in the water supply pipe between the non-freeze faucet connected to the water main installed in the unfreeze layer and the faucet, etc. is mainly It drains underground.

When the antifreeze faucet is switched to drain, the water cannot be drained unless air is taken in from the faucet.

For this purpose, some faucets are equipped with an intake device.

In many cases, the intake hole is set vertically, and the valve that opens and closes the hole is placed horizontally, so that the valve is lifted up by the water supply pressure and the intake hole is blocked, allowing shallow water to flow through the intake hole when water is flowing through the field. To prevent this, when draining the water from the antifreeze faucet, the valve is lowered at atmospheric pressure due to the decrease in water supply pressure, thereby opening the intake hole and venting to the water supply pipe.

These systems have problems in terms of valve weight.

Therefore, this invention solves the above problem by locating the intake hole horizontally and the valve vertically.

At the same time, another feature of this invention is that the intake device is integrated into a cock for proper water shutoff switching.

To explain this in detail with reference to an embodiment, as shown in FIG. 1, an inverted truncated cone-shaped main body 1 of the water faucet is provided with a water inlet 2 and a water outlet 3 on the left and right sides. 4 are rotatably and closely fitted.

A communication port 5 that communicates with the water inlet and the water outlet 3 is integrally bored in the cock 4, and as shown in FIG. A through hole 6 communicating with the communication port 5 is formed vertically, and a circular notch 7 is bored on the side of the water outlet 3 as shown in FIGS. 3 and 4.
A backing 8 having a smaller diameter than the space 7 is inserted into the space 9 to form a space 9 so that the backing 8 can move a little, and a push lid 10 is fitted on the outside of the space 9 to prevent shallow water.

A small hole 11 is made in the center of the push-cover 10, and a small hole 12 is made from the space 9 to the communication port 5.

A notch 13 is cut out at the bottom of the cock 4 at an angle slightly larger than 90°, and is designed to engage with a stopper 14 implanted in the bottom of the main body 1, that is, a handle 15 for rotating the cock 4. Rotation is limited to 90°.

The handle 15 is integrally locked with a cock rod 16 provided integrally with the cock 4 on the upper end surface of the cock 4 by inserting pins into respective holes 17.

A backing 18 and a backing presser 19 are fitted into the upper end surface of the cock 4, and are screwed onto screws provided on the upper outer periphery of the main body 1, and tightened with an upper cover 20 to prevent water leakage. was drilled and this one is hollow.

According to the above configuration, as shown in FIG.
When the water is stopped by rotating the water inlet 2 and the antifreeze faucet (not shown) installed in front of the water inlet 2 is activated, the water inlet 2 as shown in Fig. 1 is activated.
The water in the side riser pipe (not shown) tries to drain out from the antifreeze faucet due to its own weight.

For this purpose, air under atmospheric pressure passes through the small hole 11 from the water outlet 3, pushes the backing 8, and enters the space 9, and a groove 22 (shown in Figures 3 and 4) is dug in the vertical strip at the back of the notch 7. small hole 1
2. It enters the riser pipe through the communication port 5 and makes the pipe and the water faucet antifreeze.

In this action, the small hole 11 of the notch 7 connects to the upper and lower through holes 6.
Since it is located at the same height as the upper passage hole 6, the drainage effect due to intake air is good, and because the lower passage hole 6 is at the same height as the bottom of the communication port 5, water does not accumulate in the communication port 5. Since the drain hole 21 at the bottom of the main body 1 drains moisture from the sliding surface between the main body 1 and the cock 4, freezing inside the cock 4 and the main body 1 is completely eliminated.

Next, when the antifreeze faucet is switched to supplying water to the riser pipe and the handle 15 is rotated 90 degrees, the notch 13 becomes the stopper 1.
4, the rotation of the cock 4 is restricted, and the communication port 5 communicates with the water inlet 2 and the water outlet 3.

Then, since the water supply pressure that entered the riser pipe from the antifreeze faucet is higher than atmospheric pressure, the air in the water inlet 2 and the communication port 5 is exhausted from the water outlet 3, and the small hole 12 is discharged from the communication port 5. The water that enters the groove 22 presses the backing 8 against the small hole 11 to prevent shallow water from forming due to the water supply pressure.

In this invention, the backing 8 is inserted vertically, so if the backing 8 is inserted vertically, as shown in FIG.
A notch 7 is provided in the cock 4 between the upper end and the cock rod 16, a backing 8 is placed horizontally, and a small hole for ventilation is provided from the notch 7 to the communication port 5 and the outer surface of the cock rod 16. In comparison, the weight of the backing 8 does not affect the water supply pressure and acts sensitively, and the diameter of the notch 7 in which the backing 8 is placed faces the water outlet 3 is increased according to the inner diameter of the water outlet 3. By making the backing 8 larger in diameter, it is possible to ensure stable and reliable operation.

In this way, in this invention, the intake backing 8 is placed vertically toward the water outlet 3 within the sliding cock valve, so that when the water supply valve is turned off, the antifreeze water valve is activated to drain water automatically. Water is effectively drained from the riser pipe and water tap, and the backing for intake has certain effects even under low water pressure.

[Brief explanation of the drawing]

Figure 1 is a partial vertical cross-sectional view of the faucet of this invention, Figure 2 is a -0 view of the faucet in Figure 1, Figure 3 is a rear view of Figure 2 of the same above, and Figure 4 is the same as Figure 3 of the same. Left sectional view of the figure. In the figure, 1 is the main body, 2 is the water inlet, 3 is the water outlet, 4 is the cock, 5 is the communication port, 6 is the through hole, 7 is the notch, 8 is the backing, 9 is the space, 10 is the pusher cover, 11 is a small hole, 12 is a small hole, 1
3 is a notch, 14 is a stopper, 15 is a handle, 16
17 is a cock rod, 17 is a hole, 18 is a backing, 19 is a backing holder, 20 is a top cover, 21 is a drainage hole, and 22 is a groove.

Claims (2)

[Scope of utility model registration request] (1) A communication port 5 that communicates with the water inlet 2 and water outlet 3 is bored in the cock 4 which is rotatably fitted into the inverted truncated conical main body 1 and has a water inlet 2 and a water outlet 3 on the left and right sides, A through hole 6 is drilled to communicate the water inlet 2 and the communication port 5 in the cock 4 on the water inlet 2 side with the direction and phase of the communication port 5 being different, and a hole 6 is bored in the cock 4 on the water outlet 3 side with the direction and phase of the communication port 5 being different. A small hole 12 is made to communicate between the notch 7 recessed in the outer wall and the communication port 5, and a backing 8 is inserted vertically into the notch 7 in a loose manner, and the notch 7 is covered with a pusher cover 10 with a small hole 11 made therein. water supply pipe made of (2) The through holes 6 that communicate with the water inlet 2 and the communication [15] are provided in two stages, upper and lower, and the upper through holes 6 and the small holes 11 of the lid 10 of the notch 7 are arranged at the same level. A water supply pipe according to claim (1) of the utility model registration claim.