JPS6141486Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a water stop valve that automatically stops the water supply when the water supply reaches a fixed amount.

With conventional water stop valves, water is supplied and stopped by turning the handle, so when supplying water to a bathtub, you have to wait in the bathroom until the water reaches a predetermined level, or wait in the bathroom. If the water gets separated from the water, the drawback is that you have to check the water level and then turn off the water.

There are also devices that issue an alarm when the water level reaches a predetermined level.

In this case, the water must be shut off manually as soon as the alarm is issued.

This invention aims to eliminate the above-mentioned drawbacks by automatically shutting off the water when the water level reaches a predetermined level.

This device automatically locks the lever to prevent return rotation when the lever is rotated to open the valve, continues water supply, and locks the lever when the water level reaches the set position. Release it and
To provide an automatic water shutoff valve that shuts off water when a lever is rotated to return.

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

In the figure, 1 is a valve box having an inlet 2 at one end and an outlet 3 at the other end, and 4 is a valve seat 5 provided in the valve box 1, whose tip is passed through the valve box 1 without leaking. The valve stem 5 is loosely fitted into the valve seat 4, and the valve stem 5 is provided with a valve body 6 that comes into pressure contact with the valve seat 4 when the valve stem 5 slides in the water inflow direction.

Further, the valve body 1 is provided with a lever 7 for pushing back the valve stem 5, which releases the valve body 6 from the valve seat 4 as the valve body 1 rotates.

In the illustrated case, the lever 7 is pivotally supported at the center between the upper and lower sides of the lever 7 via a pin 9 on a protruding member 8 of the valve box 1, and the lever 7 is pulled toward the front to push the valve stem 5. However, the lower end of the lever may be pivotally supported on the valve box 1, and the valve stem may be pushed by tilting the lever forward.

Further, the end of the swinging rod 11 is rotatably attached to the front wall surface of the valve body 1 via a pin 10, and
A through hole 12 is provided in the lever 7, and the swinging rod 11 is passed through the through hole 12, and the lower surface of the swinging rod 11 is provided with a hole 12, and when the lever 7 is rotated so as to push back the valve stem 5, A recess 3 into which the edge of the through hole 12 fits is provided.

Further, the upper end of the string material 14 is connected to the tip of the swinging rod 11, and a float 15 that matches a predetermined water level is connected to the lower end of the string material 14.

Further, the swinging rod 11 is provided with a rotatability such that when the float 15 rises due to the water surface, the edge of the through hole 12 is removed from the recessed portion 13.

The above rotatability is achieved by connecting both ends of the spring rod 16, which has winding portions on both sides in the illustrated case, to a protrusion 17 protruding from the front surface of the valve box 1 and a groove 18 on the lower side surface of the end of the swing rod 11. It was fitted and locked.

As shown in the figure, a recessed part 19 is provided on the upper surface of the end of the swinging rod 11, and the upper edge of the through hole 12 is fitted and locked into this recessed part 19 as shown in FIG. This makes it possible to continue supplying water even if the water level exceeds the set level.

In the figure, 20 is the pressure spring of the valve stem 5, and 21 is the discharge port 3.
This is a rotatable water supply pipe connected to the 22 is a nut screwed into the swinging rod 11;
2 stops the rotation of the lever 7.

The water stop valve according to this invention has the above-described configuration, and the inlet 2 is connected to the water pipe by screwing it into the water pipe.

Unless the upper end of the lever 7 is pulled forward and the valve stem 5 is pushed back, the valve body 6 is pressed against the valve seat 4 to shut off water.

Next, when the lever 7 is pulled toward the front side, the valve stem 5 is pushed and the valve body 6 is released from the valve seat 4, so that water flows through the inlet port 2, valve seat 4, and drain port 3 into the pipe. Head to 21.

At this time, by fitting and locking the edge of the through hole 12 into the recessed part 13, the return rotation of the lever 7 is prevented and the pushed back state of the valve rod 5 is maintained.

Further, the engagement between the recessed portion 13 and the through hole 12 does not come off due to the weight of the float 15.

However, as water supply continued, float 15
When the rising water surface comes in contact with the float 15 and causes it to rise together with the water surface, the float 15 is attached to the swinging rod 11.
Since the weight is no longer applied, the swinging rod 11 rotates in the rising direction, the edge of the through hole 12 comes off from the recessed part 13, and the pushing of the valve stem 5 is released.

Therefore, the valve body 6 is pressed against the valve seat 4 to shut off water.

As described above, according to the water stop valve of this invention, the rotation of the lever pushes back the valve stem, releases the valve body from the valve seat, and engages the edge of the through hole in the recessed part of the swinging rod. At the same time, when the float is pushed up as the water level rises, the edge of the through hole comes off from the recessed part and the push of the valve stem is released, so when the water level becomes constant, it automatically Water can be stopped.

For this reason, there is no need to check the water surface every time.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of the water stop valve according to this invention, Figs. 2 and 3 are partially cutaway side views showing the same operating state, and Fig. 4 shows the swinging rod with rotatability. FIG. 7 is an enlarged vertical front view showing how the spring is attached. 1...Valve box, 2...Inflow port, 3...Drain port, 4
... Valve seat, 5 ... Valve stem, 6 ... Valve body, 7 ... Lever, 8 ... Projection member, 9 ... Pin, 10 ... Pin, 11 ... Swinging rod, 12 ... Through hole , 13... recessed part, 14... string material, 15... float, 16...
...spring rod.

Claims (1)

[Scope of utility model registration request] A valve box having an inlet at one end and an outlet at the other end, a valve seat provided in the valve box, a valve stem that penetrates the valve box and loosely fits into the valve seat to prevent leakage, and a valve body provided on the valve stem so as to come into pressure contact with the valve seat when the valve stem slides in the inflow direction; a lever attached to the valve body via a pin so as to push back the valve stem by rotation; and a lever. At the same time as passing through the through hole provided in the
A swinging rod whose end is rotatably attached to the valve box via a pin, a string whose upper end is connected to the tip of the swinging rod, a float attached to the lower end of this string, and when the valve stem is pushed back. A recess is provided on the lower circumferential surface of the swinging rod so that the edge of the through-hole can be fitted and locked, and the swinging rod has a rotatability so that when the float rises due to the water surface, the edge of the through-hole can be removed from the recess. An automatic water stop valve consisting of a spring and a spring.