JPH031671Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] This invention is a valve with a handle that opens and closes a fluid passage by rotating a rod-shaped handle, and a valve that fixes the handle in the closed or open state of the fluid passage. The present invention relates to a handle fixing device.

[Prior art and its problems]

The valves shown in FIGS. 4 and 5 are used as valves with handles equipped with handle fixing devices. 4 and 5, 1 is a valve with a handle, and a valve seat is formed in a valve body 2 having a fluid inlet 21 and a fluid outlet 22, and a cylindrical valve that rotates by sliding on the valve seat. A valve body (not shown) is housed therein. A valve shaft 3 integrally formed with the valve body projects onto the outer periphery of the valve body 2, and a handle 4 bent in a substantially Z-shape is fixed to the valve shaft 3.

The valve 1 has the handle 4 in the state shown in FIG.
By rotating the valve body in the direction of arrow A until it hits the point, the valve body is rotated and the fluid passage from the fluid inlet 21 to the fluid outlet 22 is closed midway. The fluid passage is opened by rotating the handle 4 in the direction of arrow B until the side end surface 4b abuts against the stopper 2a.

A handle fixing device 5 is attached to the valve 1 to prevent the handle 4 from being rotated unintentionally when the valve is closed. The handle fixing device 5 has a lower end surface formed in an arc shape matching the outer circumference of the valve body 2, has a vertically long elongated hole, and is attached to the upright portion of the handle 4 so as to be movable up and down. It has a lock plate 6 that is fixed with a bolt 61 through the elongated hole, and a lock pin 7 that is removably inserted into a hole provided in the handle 4.
Thus, the handle 4 is fixed to the handle 4 with the lock plate 6 abutting its lower end surface against the valve body 2;
A lock pin 7 is inserted into the handle 4 to prevent the lock plate 6 from being pushed up, and is fixed at the valve closing position. Further, the handle 4 is released from its fixation when the lock pin 7 is pulled out and the lock plate 6 is moved upward to a predetermined position and fixed.

By the way, the conventional handle fixing device 5 cannot be attached to a valve with a handle that is commercially available as a general-purpose product because it is necessary to have a handle 4 to which the handle fixing device 5 is attached. Therefore, when it is necessary to fix the handle, it is necessary to purchase a special valve 1 with a handle equipped with a handle fixing device 5, making it difficult to procure a valve with a handle. Further, each time the handle 4 is fixed or released, the bolt 61 must be loosened, which is a complicated operation.

[Purpose of invention]

The object of this invention is to provide a handle fixing device for a valve with a handle, which can be attached to a general-purpose valve with a handle to fix the handle, and which can easily fix and release the handle.

[Key points of the idea]

In this device, an engagement hole in the base engages with the handle mounting shaft, and a pair of legs integrally formed with the base sandwich the valve body and are supported and fixed to the valve body, and the legs are integrally formed with the base. The formed pawl is formed as a locking member that engages with the opening/closing positioning protrusion of the handle to fix the handle, and the handle is fixed or released by being attached to and detached from the valve with the handle.

[Example of idea]

1 to 3 show an embodiment of this invention, and parts common or identical to those in FIGS. 4 and 5 are designated by the same reference numerals.

In FIGS. 1 to 3, reference numeral 1 denotes a valve with a handle, which has a rod-shaped handle 4 and is commercially available as a general-purpose product. Reference numeral 5 denotes a handle fixing device formed by plastic molding and serving as a single locking member, and a base 51 has an engagement hole 52 that removably engages with the valve shaft 3 that also serves as the handle attachment shaft of the valve 1 with a handle. It is being Further, a pair of legs 53 are connected to the base 51 and have an inner surface substantially aligned with the outer circumference of the valve body 2, a claw 54 that contacts the side surface of the stopper 2a, and a protrusion for opening/closing the handle 4 in the valve closed position. A claw 55 that comes into contact with 4a is provided.

In the above configuration, the handle-equipped valve 1 shown in FIGS. 2 and 3 has a side end surface 4a of the handle 4.
is in contact with the stopper 2a and is closed. A handle fixing device 5 is attached to this valve 1 with a handle by engaging the engagement hole 52 with the valve shaft 3 and making the pair of legs 53 straddle the valve body 2. Thus, the handle fixing device 5 is fixed to the valve body 2 with the legs 53 sandwiching the valve body 2, and the claw 54 comes into contact with the stopper 2a to prevent rotation, further strengthening the fixation. 55 comes into contact with the protrusion 4a and prevents the handle 4 from being rotated in the valve opening direction shown by arrow B. The handle 4 is therefore fixed in the valve closed position. To release the fixation of the handle 4, it is sufficient to simply pull out the handle fixing device 5 upward, and the handle 4 can be released from the fixation very easily in the same way as when it is fixed.

[Effect of idea]

According to this invention, the engagement hole in the base engages with the handle attachment shaft, and the pair of legs integrally formed with the base are supported and fixed to the valve body with the valve body in between, and Since the handle fixing device is configured as a locking member that fixes the handle by engaging the opening/closing positioning protrusion of the handle with an integrally formed claw, it can be attached as is to a commercially available general-purpose valve with a handle. This makes it possible to release the fixation of the handle, making it easier to procure valves with handles. Furthermore, the handle can be fixed or released very easily by simply attaching one locking member by pushing it in or removing it by pulling it out.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a handle fixing device according to an embodiment of this invention seen from the back side, Fig. 2 is a front view of a valve with a handle equipped with the handle fixing device of this invention, and Fig. 3 is a plan view of the same. FIG. 4 is a front view of a valve with a handle provided with a conventional handle fixing device, and FIG. 5 is a plan view of the same. 1... Valve with handle, 4... Handle, 5...
...Handle fixing device, 52...Engagement hole, 53...
Legs, 55...nails.

Claims (1)

[Scope of utility model registration request] In a valve with a handle in which the valve body is rotated by rotating a rod-shaped handle to open and close a fluid passage, an engagement hole in the base engages with the handle mounting shaft and is formed integrally with the base. The pair of legs are supported and fixed to the valve body with the valve body in between, and the claw formed integrally with the base engages with the opening/closing positioning protrusion of the handle to act as a locking member for fixing the handle. A handle fixing device for a valve with a handle.