KR20080107830A - Valve locking apparatus - Google Patents

Abstract

A valve lock apparatus is provided to confirm whether the valve is able to be open or not by a plurality of operators. A valve lock apparatus comprises a body of valve, a latching member hanging on the manipulating handle of valve and restricting the rotation of the manipulating handle, a main body in which one side of the latching member is fixed, a latching member fixing unit which fixes and dismantles the other side of the latching member in the main body, a locks fastening means in which two or more locks are installed so that the latching member fixing unit is locked or unlocked.

Description

VALVE LOCKING APPARATUS

1 is an exploded perspective view illustrating a valve locking device according to the present invention;

Figure 2 is a perspective view showing an unlocked state of the valve locking device according to the embodiment of Figure 1,

3 is a perspective view illustrating a locked state of the valve locking device according to the embodiment of FIG. 1;

4 is a cross-sectional view illustrating a locking member fixed state of the locking member fixing means of the valve locking device according to the embodiment of FIG.

5 is a side view showing an installation state of the valve locking device according to the embodiment of FIG.

6 is a perspective view showing an unlocked state of the valve locking device as another example of the valve locking device according to the present invention;

7 is a cross-sectional view illustrating a locking member fixed state of the locking member fixing means of the valve locking device according to the embodiment of FIG.

8 is a side view showing an installation state of the valve locking device according to the embodiment of FIG.

9 is an exploded perspective view illustrating another example of the valve locking device according to the present invention;

10 is a side view showing an installation state of the valve locking device according to the embodiment of FIG.

<Description of Symbols for Main Parts of Drawings>

10: main body 11: top plate member

12: lower plate member 13: auxiliary plate member

14: middle member 11a, 12a: wire pressing projection

11b, 12b: Pressing protrusion insertion groove 11c, 12c: Wire seating groove

11d, 12d: Fixture locking groove 11e, 12e, 13e, 63e: Lock fastener

20: wire 21: wire fixture

30: lock 40: 'U' bolt

50: 'U' bolt fixing plate 60: fixing member

70: handle member 80: hook member

The present invention relates to a valve locking device installed on the valve, and more particularly to a valve locking device that allows a plurality of operators to easily check whether the valve can be opened or closed without mutual communication.

In general, the valve is installed in the pipe for supplying a fluid such as gas, steam and oil to control the flow rate of the fluid by blocking or connecting the flow of the fluid as needed.

Such a valve is installed in a pipe for transferring various fluids, such as a power plant or a chemical plant. However, the piping is complicatedly installed in a large workplace such as a power plant or a chemical plant, and the valve is provided with many valves. Therefore, in the large workplace, controlling the flow of fluid through the operation of the valve occupies a very large proportion in the whole process. However, since many workers are working in the large workshop, the setting state of the valve is often changed due to intentional or mistaken contrary to the intention of the worker in charge.

Thus, a separate locking device for fixing the operation portion of the valve unit is provided separately and the authority to release the locking device is provided only to a worker in charge so as to prevent a wrong operation of the valve.

According to the prior art of such a valve locking device according to the valve locking device disclosed in Republic of Korea Utility Model Registration No. 20-0425984,

It is fixedly attached to the main body of the valve or the support of the handle, a lock which is operated by a locking or unlocking operation using the operation key, and a locking means detachably fastened to the locking unit, one end is caught by the operation handle of the valve have.

However, such a valve lock is locked by a single lock, and when a work such as pipe replacement is frequently performed in a workshop where pipes are complicated, such as a power plant or a chemical plant, The end point may be different. At this time, there is a possibility to change the setting state of the valve by releasing one lock installed on the valve without confirming the completion of the work of all piping sections. There was a risk of safety accidents that could cause fatal damage to piping.

In addition, in order to solve this problem, after the completion of the work for each pipe section, the inconvenience of having to check the completion of work to other pipe section workers before changing the set state of the valve occurred.

Accordingly, the present invention has been made to solve the above problems, it is an object of the present invention to provide a valve locking device that can easily check whether the valve can be opened or closed.

Valve locking device of the present invention for achieving the above object is caught by one side of the body of the valve and the operation handle of the valve to limit the rotation of the operation handle, the main body is fixed to one side of the locking member; The main body includes a locking means consisting of a locking member fixing part for fixing and disengaging the other side of the locking member, and a lock coupling part provided with at least two locks for locking or unlocking the locking member fixing part.

In addition, the main body further comprises a valve body fixing means that is caught on one side of the body of the valve and both ends are coupled and dismantled to the main body.

The main body is provided on the upper / lower plate member is superimposed by the rotational operation, the upper and lower plate member is stacked on the surface of the upper / lower plate member, when the upper / lower plate member is stacked, locking member fixing means for fixing the locking member, It includes a lock engaging portion is installed at least two locks to prevent the overlapping upper / lower plate member is reversed and spread.

The lock coupling portion may be rotatably connected to the lower plate member and includes an auxiliary plate member overlapped with an upper surface of the upper plate member, and at least two lock coupling holes penetrating the upper / lower plate member and the auxiliary plate member so that at least two locks are engaged. It is done by

Another embodiment of the valve locking device of the present invention for achieving the above object is a fixing member fixed to one side of the body of the valve, a handle member that is rotated and superimposed with respect to the fixing member, one side to the operation handle of the valve The other side is installed so as to rotate on the handle member, so that the locking member is fixed by applying a tensile force when the handle member is superimposed on the fixing member, and the handle member overlapped with the fixing member is prevented from being reversed and opened. At least two locks are provided.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

The valve locking device according to the present embodiment is provided with a locking member that is caught by one side of the body of the valve or the operation handle of the valve, or simultaneously caught by one side of the body of the valve and the operation handle of the valve. And a main body to which one side of the locking member is fixed, a locking member fixing portion provided on the main body to fix and separate the other side of the locking member, and at least two locking or unlocking of the locking member fixing portions provided on the main body. Lock means consisting of a lock engaging portion is provided with two locks.

As shown in FIG. 1 and FIG. 2, the main body 10 is provided with plate-shaped upper / lower plate members 11 and 12 having a predetermined area where one side is hinged and overlapped by a pivoting operation. And, the locking member is to use a wire 20, one side of the wire 20 is welded to the lower plate member 12 is fixed.

And, the other side of the wire 20 is sandwiched between and fixed and separated when the upper / lower plate members (11, 12) are stacked. This is made possible by a locking member fixing part provided on the overlapping surface of the upper and lower plate members 11 and 12.

As shown in FIG. 2 and FIG. 4, the locking member fixing part may include wire pressing protrusions 11a and 12a protruding from the overlapping surfaces of the upper and lower plate members 11 and 12, and the wire pressing protrusions. The pressing protrusion insertion grooves 11b and 12b into which the 11a and 12a are inserted are formed, respectively. The wire pressing protrusions 11a and 12a and the pressing protrusion insertion grooves 11b and 12b are provided at positions corresponding to the overlapping surfaces of the upper and lower plate members 11 and 12. Accordingly, when the upper and lower plate members 11 and 12 are stacked, the wire pressing protrusions 11a and 12a and the pressing protrusion inserting grooves 11b and 12b are fitted to each other. That is, the wire 20 is sandwiched and fixed between the wire pressing protrusions 11a and 12a and the pressing protrusion insertion grooves 11b and 12b.

More preferably, the upper surfaces of the wire pressing protrusions 11a and 12a may have recesses having a predetermined depth to facilitate the seating of the wire 20.

As another embodiment of the locking member fixing portion, as shown in Figure 6, 7, the wire 20 is seated by a predetermined length on the overlapping surface of the upper / lower plate members (11, 12) The wire seating groove 11c is provided. The wire seating groove 11c is formed at a predetermined distance to a predetermined depth. And, the free end of the wire 20 is provided with a wire fixture 21 of a predetermined diameter. In addition, at a predetermined position of the wire seating groove (11c) is a fastener locking grooves (11d, 12d) to which the wire fastener 21 is fitted.

That is, the wire fastener 21 is inserted into the fastener engaging grooves 11d and 12d, and the wire 20 is seated in the wire seating grooves 11c and 12c, and the upper and lower plate members 11 and 12. ), The wire fixture 21 is caught by the fixture engaging grooves 11d and 12d so that the wire 20 is fixed.

Meanwhile, as shown in FIGS. 1 to 3 and 6, the lock coupling part includes at least two lock fastening holes 11e penetrating through the upper / lower plate members 11 and 12 to lock at least two locks. 12e) and a plurality of locks 30 operated by predetermined operation keys fastened to the lock fastening holes 11e and 12e.

The plate-shaped auxiliary plate member 13 may be further provided to be rotatably connected to the lower plate member 12 and have a predetermined area overlapping the upper surface of the upper plate member 11.

The auxiliary plate member 13 is hinged to the intermediate member 14 hinged to the lower plate member 12. That is, the intermediate member 14 is a plate-shaped member having a predetermined length, one end is hinged to one side of the lower plate member 12 and the other end is hinged to one side of the auxiliary plate member 13, respectively.

Accordingly, when the intermediate member 14 and the auxiliary plate member 13 are rotated relative to one side of the lower plate member 12 in the same direction, the intermediate member 14 is overlapped with the lower plate member 12. The side surface of the upper plate member 11 is covered, and the auxiliary plate member 13 is stacked on the upper surface of the upper plate member 11.

The lock plate fastening hole 13e is also formed in the auxiliary plate member 13. Therefore, the auxiliary plate member 13 may be fastened by the lock 30 together with the upper and lower plate members 11 and 12.

On the other hand, the valve body fixing means for fixing the main body 10 to the valve is further provided on one side of the main body (10).

First, before explaining the valve body fixing means, a brief look at the structure of the operation handle portion of the valve. As shown in FIGS. 5, 8, and 10, the manipulation handle is maintained at a constant distance from the body 200 of the valve to support the rotating shaft 110 of the manipulation handle 100 of the valve. The rotating shaft support plate 300 is inserted and fixed to the rotating shaft 110 of the 100 is provided, a plurality of fixing bolts 400 passing through the edge of the rotating shaft support plate 300 is coupled to the upper surface of the body 200 of the valve It is.

Valve body fixing means of the present embodiment, as shown in Figures 1 to 3 attached, 'U' shaped bolt 40 is provided on the fixing bolt 400 for fixing the rotating shaft support plate 300 is provided, Both ends of the 'U'-shaped bolt 40 is coupled to the main body 10.

The coupling of the 'U'-shaped bolt 40 is formed by bending both ends of the' U'-shaped bolt 40, and formed in a shape corresponding to the shape of the bent portion of both ends of the 'U'-shaped bolt 40 A 'U' bolt seating groove 12f is provided at one side of the lower plate member 12.

Therefore, when both ends of the 'U'-shaped bolt 40 is seated in the' U 'bolt seating groove 12f, when the upper / lower plate members 11 and 12 are stacked, the' U'-shaped bolt Since both ends of the 40 are prevented from being separated from the 'U' bolt seating groove 12f, the 'U'-shaped bolts 40 may be coupled to each other.

In addition, the 'U' bolt fixing plate 50 may be further provided to prevent both ends of the 'U' bolt bolt 40 is separated from the 'U' bolt seating groove 12f.

The 'U' bolt fixing plate 50 is a plate-shaped member having an area that covers the 'U' bolt seating groove 12f formed in the lower plate member 12, and one side thereof is bent. In addition, the fixing plate fitting groove 12g cut around the 'U' bolt fixing groove 12f in a shape corresponding to the shape of the 'U' bolt fixing plate 50 so that the 'U' bolt fixing plate 50 is coupled thereto. The lower plate member 12 is formed.

One side of the bottom surface of the fixing plate fitting groove 12g is formed so that the cutting portion of the 'U' bolt fixing plate 50 is inserted deeper.

Therefore, the 'U' bolt fixing plate 50 inserted into the fixing plate fitting groove 12g is caught by one side of the fixing plate fitting groove 12g having different cut depths, so that it is not separated from the lower plate member 12. Will not.

Hereinafter, the operation and effects of the valve locking device of the present embodiment configured as described above will be described.

As shown in FIG. 5, the operator fastens the wire 20 to the fixing bolt 400 provided on the valve body 200 and the operation handle 100 to lock the valve. And, one side of the wire 20 is not fixed is fixed between the upper / lower plate members (11, 12).

In this case, as shown in FIG. 4, the wire 20 is positioned at the wire pressing protrusions 11a and 12a and the pressing protrusion insertion holes 11b and 12b of the upper and lower plate members 11 and 12. Release. Therefore, when the upper and lower plate members 11 and 12 are stacked, the wire 20 is pressed and fixed.

According to another embodiment of fixing the wire 20, as shown in the accompanying Figure 7, the wire 20 of the wire mounting grooves (11c, 12c) of the upper and lower plate members (11, 12) Rest on either side. In addition, the wire fixture 21 fixed to one side of the wire 20 is also fixed to any one of the fixture catching grooves 11d and 12d formed in the wire seating grooves 11c and 12c on which the wire 20 is seated. Will be embedded.

When the upper / lower plate members 11 and 12 are stacked, the wire fixture 21 is prevented from being separated from the fixture catching grooves 11d and 12d, and the wire 20 is fixed.

When the upper and lower plate members 11 and 12 are stacked so that the wire 20 is fixed as described above, a plurality of locks may be inserted into the plurality of lock fastening holes 11e and 12e of the upper and lower plate members 11 and 12. 30) is fastened. Due to the fastening of the lock 30, the upper and lower plate members 11 and 12 are prevented from reverse rotation and maintained in a superimposed state. Therefore, the wire 20 is fixed to the upper and lower plate members 11 and 12.

The separation of the wires 20 may be performed in the reverse order.

On the other hand, the valve locking device of the present embodiment, as shown in Figure 5, the fixing bolt for fixing the rotating shaft support plate 300 of the 'U'-shaped bolt 40, the valve body fixing means ( The main body 10 can be fixed to the valve by a method of fixing it to 400. And, when the main body 10 is fixed to the valve, even if the wire 20 is fixed only to the main body 10 by the operation handle 100 of the valve, it is possible to fix the operation handle 100 of the valve.

Meanwhile, when the auxiliary plate member 13 is further provided, the auxiliary plate member 13 is rotated on the overlapped upper / lower plate members 11 and 12, as shown in FIG. It is also possible to prevent the upper and lower plate members 11 and 12 from spreading by wrapping the open side of the lower plate members 11 and 12.

Then, the plurality of locks 30 are fastened to the plurality of lock fastening holes 11e, 12e, and 13e of the upper / lower plate members 11 and 12 and the auxiliary plate member 13.

Hereinafter, another embodiment of the present invention will be described.

As shown in FIG. 9, a fixing member fixed to the upper surface of the valve body is provided. The fixing member 60 is a 'b' shaped L-shaped member 61 is fixed to the bottom surface in close contact with the upper surface of the body of the valve. In addition, the L-shaped members 61 are formed on both sides of the L-shaped side walls 62 extending in the lateral direction.

In addition, a handle member 70 hinged to the upper end of the L-shaped side wall 61 of the fixing member 60 is provided. The handle member 70 is provided with a base plate 72 having side walls 71 of a predetermined length hinged to an upper end of the L-shaped side wall 62 on both sides and fixing the pair of side walls.

Then, the locking member is hinged to the handle member 70 is provided with a locking member for hanging the operation handle of the valve. The locking member is a hook member 80 having a hook shape on one side to be caught by the operation handle of the valve, the other side is the handle located below the hinge point of the handle member 70 and the fixing member 60 It is hinged to the side wall 71 of the member 70.

That is, since the hinge point of the hook member 80 also rotates when the handle member 70 is rotated up and down, the hook member 80 is elevated. By the way, the hook member 80 is caught on one side of the operation handle is limited to the downward rotation of the handle member 70. At this time, when the handle member 70 is rotated so as to be overlaid with the fixing member 60 by applying more pressure to the handle member 70, the hook member 80 is caught by the operation handle while receiving a predetermined tension force. do. Therefore, since the manipulation handle is fixed by the tension of the hook member 80, the rotation is restricted.

On the other hand, in order to prevent the reverse rotation of the handle member 70 with respect to the fixing member 60, a lock coupling portion is provided.

The lock coupling portion is formed on the L-shaped member 61 of the fixing member lock lock piece (63) protruding in the direction of the handle member 70 which is installed to be rotated to the fixing member 60, the handle member ( 70 is formed with a fastening piece through hole 73 through which the lock fastening piece 63 passes.

A portion of the lock fastening piece 63 exposed through the fastening piece through-hole 73 is formed with a plurality of lock fastening holes 63a in the lateral direction, and a predetermined operation key through the lock fastening hole 63a. A plurality of locks actuated by are fastened.

Hereinafter will be described the operation and effect of another embodiment of the present invention configured as described above.

As shown in FIG. 9 and FIG. 10, the fixing member 60, the handle member 70, and the hook member 80 are prepared in advance to be rotated, respectively. Then, the fixing member 60 couples the bottom surface of the L-shaped member 61 to the upper surface of the body 200 of the valve. In addition, the hook member 70 is rotated and the hook member 80 is rotated so as to be caught by the operation handle 100.

When the hook member 80 is caught by the operation handle 100, the operator presses the handle member 70 to reverse the rotation, so that the handle member 70 is superimposed on the fixing member (60). At this time, the operation handle 100 is fixed by the tension of the hook member (80).

On the other hand, when the handle member 70 is superimposed on the fixing member 60, the lock fastening piece 63 of the fixing member 60 passes through the fastening piece through hole 73 of the handle member 70 The front surface of the handle member 70 is exposed.

The plurality of locks 30 are fastened to the plurality of lock fastening holes 63a formed in the exposed lock fastening piece 63.

What is necessary is just to perform the said process of loosening of the said hook member 80 in reverse order.

As such, in the embodiment of the present invention and another embodiment of the present invention, the valve is locked by a plurality of locks. Therefore, it is possible to change the set state of the valve only in the state where the plurality of locks are all released.

An embodiment of the present invention described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

As described above, in the present invention, since the operation handles of the valve are fixed by a locking device provided with a plurality of locks, the operation handles of the valves can be operated only when the plurality of locks are released, so that a plurality of operators can operate the plurality of locks. There is an advantage that the valve can be operated by checking only the loose state.

In addition, it is easy to know whether the valve can be operated, and since the operation of the valve itself is not performed when a plurality of locks are not released, there is an advantage of preventing a safety accident caused by inadvertent operation of the valve.

Claims (5)

A locking member which is caught by one side of the body of the valve and the operation handle of the valve to limit the rotation of the operation handle; A main body to which one side of the locking member is fixed; The main body includes a locking means consisting of a locking member fixing portion for fixing and disengaging the other side of the locking member and at least two locks for locking or unlocking the locking member fixing portion. Valve lock. The method of claim 1, The main body is a valve locking device, characterized in that it further comprises a valve body fixing means that is caught on one side of the body of the valve and both ends are coupled and dismantled to the body. The method according to claim 1 or 2, wherein the main body, An upper / lower plate member superimposed by the rotation operation; A locking member fixing means installed on the overlapping surface of the upper / lower plate member to fix the locking member when the upper / lower plate member is stacked; And a lock engaging portion to which at least two locks are installed to prevent the overlapping upper and lower plate members from being reversely rotated and opened. The method of claim 3, wherein the lock engagement portion, An auxiliary plate member rotatably connected to the lower plate member and superimposed on an upper surface of the upper plate member; And at least two lock fastening holes penetrating the upper / lower plate member and the auxiliary plate member to lock at least two locks. A fixing member fixed to one side of the body of the valve, A handle member that is rotated and overlapped with respect to the fixing member; One side is caught by the operation handle of the valve, the other side is installed to be rotated to the handle member, the engaging member is fixed by applying a tensile force when the handle member is superimposed on the fixing member, And a lock coupling portion having at least two locks installed to prevent the handle member overlapped with the fixed member from being reversed and opened.

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