JPS6137911Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an automatic valve equipped with a handle for manual opening and closing.

Conventionally, round or lever-shaped handles have been used as handles for manual opening/closing operations attached to automatic valves, but when the radius of a round handle increases, it can be installed in a narrow place, such as a place with a wall on one side. It is not possible. Although the spanner-type lever handle can be installed in tight spaces such as corners, it is inconvenient to refit the handle each time the handle is moved back and forth. A lever handle combined with a ratchet is also used in some cases, but this was
As shown in No. 36-15521, since a ratchet wheel is provided, there is a problem that the shape becomes large and the structure becomes complicated.

The purpose of this invention is to provide an automatic valve with a small handle that can be easily operated with one hand even in narrow spaces.

The valve of this invention will be explained based on an embodiment shown in the drawings. As shown in FIG. 1, the flow path of the main body 1 of the valve is opened and closed by the upper and lower ends of a diaphragm 2, which is attached to the lower end of a spindle 7 via a compressor 6 and a hanger 3. Ponnet 4
The cylinder 8 is installed on top, and the spring chamber 12 is installed on top of it.
to be fixed. A piston 9 is fixed to a spindle 7 passing through the axes of a cylinder 8 and a spring chamber 12, and a compression spring 11 is placed on it. The piston 9 slides up and down along the inner surface of the cylinder 8, but an O-ring 10 fitted around the outer circumference of the piston 9 maintains airtightness on both sides. Place the presser plate 15 on top of the compression spring 11,
The presser plate is received by a sleeve 16 screwed into the spring chamber 12 from above. A spring tightening nut 13 is screwed onto the upper end of the spindle 7, and a bushing 36 is fitted into the protrusion of the nut. The thrust bearing 19 is placed on the bush 33, and the double nuts 22 and 24 with the indicator plate 23 sandwiched between them are attached to the male threads at the upper end of the nut 13 above it. The sleeve 16 is screwed into the spring chamber 12 from above coaxially with the nut 13, and its lower end is brought into contact with the upper surface of the presser plate 15. A yoke 21 with a scale plate is fixed to the upper surface of the spring chamber 12 via a bolt 20, and a bolt 25 is attached to the top of the yoke 21.

A handle 18 is attached in advance to a hexagonal portion formed on the outer periphery of the sleeve 16. handle 18
includes a main body 18a that covers the hexagonal portion, a switching lever 18b and a grip 18c that protrude from the main body. As shown in FIG. 3, inside the main body 18a,
The shaft portion of the top 18d is slidably passed through the shaft of the switching lever 18b in the diametrical direction. A ball part is provided at the tip of the top 18d and a ring part is provided at the rear end to prevent it from falling off the lever 18b, and a coil spring 18e is interposed between the shaft of the ball lever 18b to allow the ball part at the tip to protrude. let

When opening the valve, pull the grip 1 in the direction of arrow A in Figure 3.
8c, but as shown by the solid line, the ball of the top 18d pushed out by the spring 18e is sandwiched between one side of the hexagonal part of the sleeve 16 and the inner corner of the main body 18a, so the sleeve 16 turns together with the handle 18. .
After turning the handle 18 until it hits one side of the yoke 21, turn the handle 18 in the opposite direction until it hits the other side of the yoke 21. At this time, the ball part of the top 18d slides on the side of the hexagonal part, so the sleeve 16 does not reverse. Then, turn the handle 18 in the direction A again. By repeating this operation, the sleeve 16
rotates intermittently and comes out of the spring chamber 12.
As shown in FIG. 2, when the sleeve 16 rises slightly, the presser plate 15 comes into contact with the lower end of the nut 13 and separates from the sleeve 16. The rising sleeve 16 lifts the nut 13 together with the spindle 7 via the thrust bearing 19 and opens the valve. Although the presser plate 15 and the piston 9 rise together with the spindle 7, the distance between them remains unchanged and the compression spring 11 does not expand or contract.

When closing the valve, insert the handle 18 into the sleeve 16.
After switching the switching lever 18b and moving the top 18d to the position indicated by the chain line in FIG. 3, the main body 18a is placed over the hexagonal part. Then,
The grip 18c is reciprocated in the same way as when opening the valve. When the handle 18 rotates in the direction opposite to arrow A, the sleeve 16 rotates together with the handle 18 via the top 18d, and when the handle 18 rotates in the direction A, the top 18d slides on the hexagonal portion and the sleeve 16 does not rotate. In this way, the sleeve 16 rotates intermittently and descends to press down the presser plate 15. The holding plate 15 lowers the piston 9 together with the spindle 7 via the compression spring 11 and closes the valve.

Since the sleeve 16 and handle 18 are significantly smaller and lighter than conventional ones, the materials required for manufacturing can be saved accordingly. Also, handle 18
can be installed on the valve even in narrow spaces, and the rotary sleeve 16 and non-rotating nut 2
Since there is a thrust bearing between the two, it can be easily operated with one hand.

[Brief explanation of the drawing]

1 and 2 are elevational views of an embodiment of the valve of this invention when it is fully closed and when it is fully opened, and the right half shows a cross section. FIG. 3 is a sectional view taken along - in FIG. 1. 7: Spindle, 9: Piston, 11: Compression spring, 12: Spring chamber (cylindrical body), 13: Nut, 1
5: Holding plate, 16: Sleeve, 18: Handle,
18b: Switching lever (shaft), 18d: Top, 1
9: Thrust bearing.

Claims (1)

[Claims for Utility Model Registration] (1) A compression spring is interposed between a piston attached to a spindle that opens and closes the valve and a presser plate, and the compression spring is housed in a cylindrical body, and a sleeve is attached to the cylindrical body and rotates up and down coaxially with the spindle. A screw spring is freely screwed, the sleeve is engaged with the spindle so that it can be lifted, the lower end of the sleeve is formed so as to be able to abut against the presser plate, and a handle is attached to a handle engaging portion formed on the sleeve. The sleeve is rotatably attached, and the handle is provided with a top that can be switched, the handle engaging part is a hexagonal part formed on the sleeve, and the handle includes a main body surrounding the hexagonal part, The top includes a switching lever protruding inside the main body, and the top includes a shaft portion slidably inserted into the switching lever, a ball portion and a ring portion provided at the front and rear of the shaft portion, and a ring portion fitted into the shaft portion. the main body includes a coil spring interposed between the ball part and the switching lever, and the main body has inside corner parts symmetrically sandwiching the ball part with the sides of the hexagonal part, so that the top is connected to the handle. An automatic valve with a manual opening/closing handle, which rotates the sleeve when the switch rotates in the switched direction, but does not rotate the sleeve when the switch rotates in the opposite direction. (2) A nut that can be engaged with the presser plate is screwed into the upper end of the spindle, and a thrust bearing is provided on the head of the nut that protrudes from the sleeve so that it can be engaged with the upper end of the sleeve. An automatic valve with a manual handle according to claim 1 of the utility model registration claim.