KR20060094320A - Valve opening/closing handle lock mechanism - Google Patents

Abstract

It is provided in the valve having the opening / closing handle by manual operation, and the opening / closing handle is not inadvertently opened or closed by inadvertent operation or wrong operation after being properly operated. An object of the present invention is to provide an open / close handle locking mechanism for securing a valve.

It consists of a locking cap (4) to cover the opening and closing handle (1) for opening and closing the flow path, characterized in that the locking cap (4) is provided with a function to disable the operation of the opening and closing handle (1). . The locking cap 4 covers the handle mounting portion 3 from the opening / closing handle 1 and has an opening 5 through which the end of the opening / closing handle 1 is fitted. It has a vertical groove to slide out the end.

Description

Valve open / close handle locking mechanism {VALVE OPENING / CLOSING HANDLE LOCK MECHANISM}

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the structure and use condition of the 1st Embodiment of this invention.

2 is a view showing a configuration and a use state of a second embodiment of the present invention.

3 is a diagram showing a configuration and a use state of a third embodiment of the present invention.

4 is a diagram showing a configuration and a use state of a fourth embodiment of the present invention.

5 is a diagram showing a configuration and a use state of a fourth embodiment of the present invention.

6 is a diagram showing a configuration and a use state of a fifth embodiment of the present invention.

Fig. 7 is a diagram showing the construction and use state of the fifth embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: open / close handle 2: valve body

3: handle installation part 4: locking cap

5 opening 6 fixing screw

7: screw hole 8: insertion through hole

9: wire key 10: wire

11: cap for locking 12: protrusion

13 opening 14 vertical groove

15: set screw 16: screw hole

17: wired key 18: wire

19: insertion hole 20: male part

21: cap for locking 22: screw hook

23: inner cylinder 24: inner flange

25: outer flange 26: opening

The present invention is installed in the valve of the valve of the opening and closing handle of the valve, more specifically, in the form of being assembled into the flow path of water, chemical liquid, gas, etc. and opening and closing the flow path by manual operation of the opening and closing handle, An opening / closing handle locking mechanism of a valve that locks a handle so as not to be inadvertently operated.

In various factories, there are valves for opening and closing a flow path of water, chemical liquid, gas, etc., which are circulated and supplied, by rotating the opening / closing handle in a horizontal direction or by rotating in a vertical direction by manual operation.

Since the valve is installed in a state protruding from the fluid circuit, when the operator moves along the fluid circuit, the valve may touch the opening / closing handle and inadvertently open / close operation. In addition, since anyone can open and close the operation, there is a risk of inadvertent operation or inadvertent operation by an inexperienced person, and the safety of the valve is not maintained.

[Patent Document 1]

Japanese Patent Publication No. 2002-147646

As described above, in the valve having the opening / closing handle by the conventional manual operation, the opening / closing handle may be inadvertently opened or closed by inadvertent operation or inadequate operation, and safety is ensured. There was problem that there was not.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem in the prior art, and is provided in a valve having an opening / closing handle by manual operation, and after the opening / closing handle is appropriately operated, inadvertently, by an incorrect operation, or An object of the present invention is to provide an opening / closing handle locking mechanism of a valve which does not have a risk of opening / closing operation due to misoperation and which can ensure the safety of the valve.

The present invention is made of a locking cap that covers the opening and closing handle for opening and closing the flow path, wherein the locking cap has a function to disable the operation of the opening and closing handles lock mechanism of the valve, characterized in that This solved the problem.

The locking cap covers the handle mounting portion from the opening / closing handle, and the locking cap has an opening through which the end of the opening / closing handle is inserted, or the locking cap has an end portion of the opening / closing handle. It has a longitudinal groove to make it slide out.

The locking cap is fixed to the handle mounting portion with screws, or fixed by attaching the handle mounting portion with screws, or the locking cap is engaged with the handle mounting portion. The mating can be stopped through the unevenness. In addition, the locking cap may be provided with a key means for preventing release.

Embodiment of the invention

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 5 relates to a valve in which the opening / closing handle 1 is rotated 90 degrees or 180 degrees in the vertical direction. The embodiment shown in FIGS. 6 and 7 relates to the opening and closing handle 1 It relates to a valve of the type to rotate the horizontal rotation).

First, the first embodiment shown in FIG. 1 will be described. The opening / closing handle 1 is installed on the handle mounting portion 3 provided on the upper surface of the valve body 2 so that it can be rotated by 90 degrees, and when it is raised, it closes and closes the flow path, and opens the flow path when the horizontal rotation motion is performed. (On the contrary, it can also be comprised so that it may be opened when it is raised. Hereinafter, in either embodiment, an opening / closing of a flow path can be opened by the operation opposite to the opening / closing handle 1).

4 is a locking cap, which is mounted from the opening / closing handle 1 to the handle mounting portion 3 when the opening / closing handle 1 is in an upright position. The locking cap 4 has an opening 5 on which its upper surface is fitted with the upper portion of the opening / closing handle 1 in a raised state. Further, preferably, the upper part of the locking cap 4 is formed with a screw hole 7 for screwing the fixing screw 6 in the horizontal direction.

In the case of this first embodiment, in order to raise and close the opening / closing handle 1 to open (or close) the flow path and maintain the state, the locking cap 4 extends from the opening / closing handle 1 to the handle mounting portion 3. ) Is good (FIG. 1 (B)). That is, since the upper part of the opening / closing handle 1 protrudes from the opening 5 by covering the locking cap 4, the opening / closing handle 1 cannot be rotated. In order to prevent the locking cap 4 from coming off, the fixing screw 6 is screwed into the handle mounting portion 3 from the screw hole 7 of the locking cap 4.

In addition, it is possible to increase the safety by allowing only the administrator of the valve to perform the opening and closing operation of the valve. For this purpose, for example, an insertion through hole 8 may be formed in a portion protruding from the opening 5 of the opening / closing handle 1, and the key may be locked there through the wire 10 of the wire-type key 9. .

The second embodiment shown in FIG. 2 is for holding the opening / closing handle 1 rotated in a horizontal state in the state, and in this case, the locking is applied from the opening / closing handle 1 to the handle mounting portion 3. A cap 11 is used.

The locking cap 11 has an opening 13 on its upper surface which protrudes the protrusion 12 provided on the side surface of the opening / closing handle 1 (it becomes an upper surface when the horizontal rotational movement is shown). On the side, it has a longitudinal groove 14 for exiting the opening and closing handle (1). Further, preferably, a screw hole 16 for screwing the fixing screw 15 in a screw rotational manner is formed in the lower portion of the locking cap 11.

In the case of the second embodiment, the opening and closing handle 1 is rotated horizontally to open (or close) the flow path, and is locked from the opening and closing handle 1 to the handle mounting portion 3 in order to maintain the state. The cap 11 is covered (FIG. 2 (B)). That is, by covering the locking cap 11, the opening / closing handle 1 is locked to the vertical groove 14 so that it cannot be rotated upward. And in order to ensure that state, the fixing screw 15 is screwed in from the screw hole 16 of the locking cap 11 to the handle mounting part 3 by screw rotation.

In addition, as in the case of the first embodiment, the wire can be locked using the wire-type key 17 to ensure safety. In the case of this 2nd Embodiment, the insertion hole 19 for passing the wire 18 is formed in the projection part 12 which protrudes from the opening 13. As shown in FIG.

3 is for locking in the state which raised and closed the opening / closing handle 1, FIG. The cap 21 for locking there is a screw ring 22 for screwing into the male screw portion 20 formed in the handle mounting portion 3 and an inner barrel 23 supported inside the screw ring 22. In the lower end thereof, the inner barrel 23 has an outer flange 25 engaged with the inner flange 24 formed on the upper surface of the screw ring 22, so that the inner cylinder 23 is pulled upward from the screw ring 22. none. The inner barrel 23 has an opening 26 for protruding the opening / closing handle 1 on its upper surface.

In the case of the third embodiment, the cap 21 for locking the opening and closing handle 1 through the opening 26 in order to raise and close the opening and closing handle 1 to open (or close) the flow path and maintain the state. To cover the handle mounting portion (3) from the opening and closing handle (1), and screw thread 22 to the male screw portion (20). In this way, the opening and closing handle 1 is locked, so that the rotational movement is impossible.

In addition, as in the case of the first and second embodiments, the key may be locked using a wired key (not shown) to ensure safety. In that case, the insertion passage hole 27 for passing a wire is formed in the part which protrudes from the opening 26 of the opening / closing handle 1.

4 and 5 are related to a valve of a form in which the opening / closing handle 1 is rotated 180 degrees in the vertical direction to open and close the valve body 2. In the illustrated example, the flow path 2 is closed by knocking the opening / closing handle 1 to the left and the flow path is opened by knocking the opening / closing handle 1 to the left, and the locking cap 31 therein is in a closed state. I use it to maintain it.

The locking cap 31 has a longitudinal groove 32 for allowing the opening / closing handle 1 to come out when the locking cap 31 is covered with the opening / closing handle 1 from above (see FIG. 5). It is preferable to provide an uneven portion 33 which engages with each other between the inner surface of the locking cap 31 and the outer surface of the handle mounting portion 3 in contact with it. This engaging convex-and-concave portion exhibits a fall prevention function of the cap 31 for locking.

In the case of this fourth embodiment, the cap for locking the opening / closing handle 1 through the vertical grooves 32 in order to knock down the opening / closing handle 1 horizontally to open (or close) the flow path and maintain the state. The 31 is covered from the opening / closing handle 1 to the handle mounting portion 3 to engage the uneven portion 33. In this way, the opening / closing handle 1 is locked and becomes impossible to rotate unless the locking cap 31 is removed.

In addition, as in the case of the above embodiment, in order to ensure safety, the key may be locked using a wired key (not shown). In the case of the fourth embodiment, the insertion through hole 34 is formed in the opening / closing handle 1 at the same time as the insertion through hole 34 for passing the wire through the side surface of the locking cap 31. An insertion through hole 34 is formed in succession.

The fifth embodiment shown in FIG. 6 and FIG. 7 relates to a valve in which the opening / closing handle 1 is bent by 90 degrees in the horizontal direction left and right to rotate the valve body 2 in order to open and close the valve body 2. In the illustrated example, the flow path is opened when the opening / closing handle 1 is in parallel with the flow path, and the flow path is closed when the opening / closing handle 1 is in parallel with the flow path, so that the locking cap 41 keeps the flow path open. I use it to do it.

The locking cap 41 has a symmetrical position with the longitudinal grooves 42 for releasing both ends of the opening and closing handle 1 when the opening and closing handle 1 is covered from the upper side.

In the case of this fifth embodiment, both ends of the opening / closing handle 1 pass through the vertical grooves 42 in order to turn the opening / closing handle 1 to open (or close) the flow path and maintain the state. The cap 41 is covered from the opening / closing handle 1 to the handle mounting portion 3. In this way, the opening / closing handle 1 is locked, thereby making it impossible to rotate.

In addition, as in the case of the above embodiment, in order to ensure safety, the key may be locked using a wired key (not shown). In the case of the fifth embodiment, the insertion through hole 43 is provided in the opening / closing handle 1 while providing an insertion through hole 43 for passing the wire through the side surface of the locking cap 41. An insertion through hole 44 is formed in succession. In addition, in the case where the insertion hole 43 is formed in a position avoiding the opening / closing handle 1 (a position indicated by reference numeral 43a in the drawing), the insertion hole 44 is unnecessary.

By installing the opening / closing handle locking mechanism of the valve according to the present invention to the valve having the opening / closing handle by manual operation, the opening / closing handle can be locked, and then inadvertently operated by misoperation or after proper operation. There is no possibility that the opening and closing operation will be performed by a wrong operation, and occurrence of an accident due to inappropriate opening and closing of the flow path can be prevented.

In addition, in the present invention according to claims 5 to 7, in addition to the above effects, there is an effect that the locking cap is firmly fixed and does not simply fall off, and in the invention according to claim 8, the opening and closing operation other than the key manager is further performed. Since this is impossible, the safety of the valve is ensured.

Claims (8)

And a locking cap that covers the opening and closing handle for opening and closing the flow path, wherein the locking cap has a function of disabling the opening and closing handle. The opening / closing handle locking mechanism of claim 1, wherein the locking cap is covered from the opening / closing handle to the handle mounting portion. The opening / closing handle locking mechanism of claim 1, wherein the locking cap has an opening through which an end of the opening and closing handle is fitted. 2. The opening and closing handle locking mechanism of claim 1, wherein the locking cap has a vertical groove that slides the end of the opening and closing handle to slide out. The opening and closing handle locking mechanism of claim 1, wherein the locking cap is screwed to the handle mounting portion. The opening and closing handle locking mechanism of claim 1, wherein the locking cap is screwed to the handle mounting portion. The valve opening and closing handle locking mechanism of claim 1, wherein the locking cap is stopped by an uneven portion engaged with each other in the handle mounting portion. The valve opening / closing handle locking mechanism according to any one of claims 1 to 7, wherein the locking cap is provided with a key means for preventing release.

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