JPS6215570Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a device that can automatically turn water on and off by simply operating the end of the hose when a hose is attached to a water pipe faucet and used for watering, etc. be.

Generally, when a hose is attached to a water faucet and water is used, the main valve must be turned off when the water is turned off, or the main valve is left open and a special stopper is installed at the end of the hose to stop the water at the end of the hose. There are, but
The former is inconvenient if the hose length is long;
In the latter case, the water pressure inside the hose increases and there are drawbacks such as water overflowing from the attachment part of the hose, or the hose coming off or bursting.

This invention solves the above-mentioned drawbacks, and provides an automatic water tap that has a simpler structure, is less bulky, and is easier to manufacture than conventional ones, and can open and close quickly and reliably. The gist of this is that an inner cylinder 2, whose lower end is open only at the hose attachment part, is fitted in a watertight and slidable manner into an upper outer cylinder 1 whose lower part is tapered in diameter and whose upper and lower ends are open. , an upwardly facing outer periphery valve seat 3 provided on the inner periphery of the upper outer cylinder 1 and a vertical shaft 4 vertically provided at the center of the upper wall surface of the inner cylinder 2.
A disc-shaped valve body 6 is loosely fitted onto the vertical shaft 4 between inner valve seats 5 provided in a protruding manner on the upper outer periphery of the valve body, and a lower end hose is attached to the upper wall surface of the inner cylinder below the valve body. A required number of water holes 7 communicating with the mounting portion are provided, and a flange 8 is provided protruding from the outer wall of the inner cylinder below the water holes, while a collar 8 is provided below the upper outer cylinder and protruding from the inner wall of the lower end. Edge 9
A lower outer cylinder 10 having a lower outer cylinder 10 is attached by screwing or fitting, and a spring 11 for biasing the inner cylinder upward is interposed between the projecting edge and the flange. It is.

An embodiment of the automatic opening/closing valve according to the present invention will be described below with reference to the embodiment drawings. The protruding lower surface of the outer periphery of the vertical shaft 4 vertically disposed on the upper surface of the cylinder 2 serves as a downward inner peripheral valve seat 5, and a valve body 6 is mounted between these. In this embodiment, this valve body 6
is a disc-shaped valve body holding piece which has a hole in the center made of a countersunk screw and is slightly thicker than the vertical shaft 4, through which the vertical shaft 4 is passed, and which holds the valve body 6 in a slightly vertically movable state. 12 is provided on the side surface of the vertical shaft 4. The valve body holding piece 12 is a rod-shaped piece that protrudes from the side surface of the vertical shaft 4 at several points so that water can flow even when the valve body 6 moves downward and comes into contact with the valve body holding piece 12. Alternatively, it may be formed of a disc-shaped member (see Fig. 5) with water passage grooves on the upper surface.

Next, the collar 8 protruding from the inner cylinder 2 is the spring 1
1, so it may be flat and protruding as shown in FIG. 1, or it may be bent and extended upwards as shown in FIG. 2. In FIG. 1, 5' is a small flange that serves not as a spring support but as a stopper, and it comes into contact with a protrusion 9 on the inner wall at the lower end of the lower outer cylinder 10, and prevents the inner cylinder 2 from lowering any further to hold the valve body 6. It is for protection. Next, 13 in the figure is a seal ring, and this seal ring 13 is attached to the upper outer cylinder 1.
This is to prevent water from entering the wall between the upper outer cylinder 1 and the inner cylinder 2 and leaking to the outside of the spring 11, depending on the structure. It may be provided at one location or at a location as shown in Figure 2.

The automatic opening/closing faucet constructed as described above is used by being attached to a water pipe faucet as shown in Figure 3. Normally, when water is being discharged from the end of the hose, the inner cylinder 2 is moved upward by the force of the spring 11. Since it is in a moved state, as shown in Figs. 1 and 2, the supplied water from the upper outer cylinder 1 passes through the inner and outer peripheral valve seats 3 and 5 and flows through the water passage hole 7 into the inner cylinder 2. and is released from the end of the hose. When the water flow is stopped by pressing the end or middle of the hose with your hand or using a stopper (not shown), the water pressure inside the hose increases and the hose is pushed downward along with the inner cylinder, until finally When the pressing force becomes larger than the force of the spring 11, the inner cylinder 2 is pushed downward and the valve body 6 is also pressed downward, as shown in FIG. However, the upper inner circumferential surface of the valve body and the downward inner circumferential valve seat 5 are in watertight contact with each other, thereby blocking the flow of water. Next, when the end or middle of the hose is opened to release the water inside the hose, the water pressure inside the hose becomes weaker, and the restoring force of the spring 1 acts to first raise the inner cylinder 2 slightly by the distance that allows the valve body 6 to move up and down. Rise. By doing so, a slight gap is created between the downward inner peripheral valve seat 5 and the valve body 6, and the pressure water above the valve body 6 flows downward, and the water above and below the valve body 6 is divided by that amount. Since the pressure difference between the inner cylinder 2 and the inner cylinder 2 becomes smaller, the restoring force of the spring 11 becomes more effective, and the inner cylinder 2 finally rises significantly, and the outer periphery of the valve body 6 separates from the upward outer periphery valve seat 3, allowing the supply water to circulate throughout the entire surface. It will be like that.

Note that since a hose is attached to the lower end of the inner tube 2, it is preferable that the inner tube 2 is rotatable to facilitate attachment and detachment of the hose.

Also, as shown in Figure 6, if two valve bodies 6 are installed instead of one, the valve can be opened and closed more smoothly even when strong water pressure is applied; If a large number of sheets are used, the effect will be even more remarkable, and it can also be applied to industrial high water pressure valves.

As mentioned above, according to this invention, by manually controlling the outflow and shutting off of water, it is possible to open and close the water inlet not only at hand but also at the hose mounting base itself, so that the hose can be easily removed. Of course, there is no need to worry about water leaking due to breakage, and the present invention uses an inner cylinder that is slidably and watertightly inserted into the upper outer cylinder, and a spring that constantly biases the inner cylinder upward. By converting the side pressure fluctuation into the raising and lowering movement of the inner cylinder, and automatically opening and closing the valve by raising and lowering the inner cylinder, the outer shape can be made into a simple, almost cylindrical shape. It is compact and easy to handle without being bulky, and has a simple structure that reduces failure and can be manufactured at low cost. A two-stage opening/closing valve structure consisting of a downward inner periphery valve seat protruding from the upper outer periphery of the vertical shaft and a disc-shaped valve body loosely fitted to the vertical shaft allows the valve to open and close. It has an excellent effect of being able to carry out the process effortlessly, quickly and reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Figs. 1 and 2 are partially cutaway front views of the automatic shut-off faucet of the proposed water supply when water is allowed to flow, and Fig. 3 is an explanation showing the same state of use. Figures 4 and 4 are partially cutaway front views with the water stopped, and Figures 5 and 6 are enlarged views of the main parts, respectively. In the figure, 1: Upper outer cylinder, 2: Inner cylinder, 3: Outer valve seat, 4: Vertical axis, 5: Inner valve seat, 6: Valve body, 7: Water hole, 8: Flange, 9: Protrusion. edge.

Claims (1)

[Scope of utility model registration request] An inner cylinder 2 whose lower end hose attachment portion is open is watertightly and slidably inserted into an upper outer cylinder 1 whose lower part is tapered in diameter and whose upper and lower ends are open.
The vertical axis 4 is located between the upward outer circumferential valve seat 3 provided on the inner circumference and the downward inner circumferential valve seat 5 provided protrudingly on the upper outer circumference of the vertical shaft 4 vertically disposed in the center of the upper wall surface of the inner cylinder 2. A disc-shaped valve body 6 is fitted loosely into the valve body, and a required number of water holes 7 are provided through the upper wall surface of the inner cylinder below the valve body to communicate with the lower end hose attachment part. Further, a collar 8 is provided protrudingly on the outer wall of the lower inner cylinder, and a lower outer cylinder 10 having a protruding edge 9 on the inner wall at the lower end is attached below the upper outer cylinder by means such as screwing or fitting. A spring 11 that urges the inner cylinder upward between the edge and the flange.
An automatic opening/closing faucet for water supply, characterized by interposing.