KR101200393B1 - Protective Cap for valve handle - Google Patents

Abstract

PURPOSE: A protective cap for a valve handle is provided to increase the work efficiency of workers by having simple locking operation with a locking part. CONSTITUTION: A protective cap for a valve handle comprises a left case(10), a right case(20), a case hinge part(30), a protective plate(40), and a locking part(50). An opening is formed in the upper and lower parts of the left case. An opening is formed in the upper and lower parts of the right case. A protrusion sill is formed on one side of the right case. The case hinge part is attached in the rear side of the left and right cases to turnably connect the left and right cases. The protective plate has a shape corresponding to the cross section of a state where the left and right cases are hinge-coupled. The locking part is turnably attached in the front side of the left case to be rotated at a right angle to a turning direction of the case hinge part.

Description

Protective cap for valve handle to prevent unauthorized operation of valve handle

The present invention relates to a protective cap for a valve handle, and more particularly to a valve protective cap that is easy to operate the lock, can be confirmed whether the lock by the operator can improve the working efficiency of the operator.

In general, a handle of a valve installed on various fluid supply lines including gas requires manipulation by an authorized legitimate user. In addition, even if used by legitimate users, misoperation of valves due to confusion with other valves is one of the most important causes of accidents in manufacturing sites where fluid supply lines such as semiconductor processes are installed. In order to prevent such misoperation of the valve, a protective cap for a valve handle has been used (Korean Utility Model Registration No. 165918, etc.).

However, the conventional protective cap for the valve handle has a problem in that there is a limit to prevent the misoperation because it simply uses a cover to prevent misoperation. In addition, in order to overcome this limitation, a conventional locking device, i.e., an auxiliary device for locking the lock with a key, has been used. However, the use of such a separate lock is not only cumbersome to install and lock, but also requires the use of a separate lock. There is a problem that there is a hassle of use or installation cost time is increased because the installation and operation is not easy.

In addition, even if the valve protection cap is installed, in order to confirm whether the valve protection cap is securely locked, the operator had to turn the valve protection cap lock again or at least visually check whether the valve protection cap is opened or closed. Work efficiency is reduced.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to ensure that the locking operation of the valve protection cap is more surely implemented, the valve protection cap that can be easily confirmed whether the locking of the valve protection cap To provide.

The present invention for solving the above problems, in the protective handle 100 for the valve handle to prevent the wrong operation of the valve handle, a semi-cylindrical member having an opening formed in the upper and lower parts on one side of the protective cap A left case 10 positioned; Right case 20 positioned on the other side of the protective cap and having a locking step shape at a side with an opening on the top and bottom is formed as a member of semi-cylindrical shape opposed to the left case; A case hinge portion 30 attached to the rear sides of the left case and the right case as a hinge-shaped member to rotatably connect the left case and the right case ; A transparent plate-like member, comprising: a protective plate (40) having a shape corresponding to the shape of a cross section in a state where the left case and the right case are hinged; And a cylindrical member having an annular shape attached thereto, the locking portion 50 being attached to the front side of the left case in a state rotatable perpendicularly to the rotational direction of the case hinge portion, wherein the locking case includes the locking portion. A locking jaw shape is formed in a position and a shape corresponding to an annular shape, and the left case and the right case are fastened by engaging the ring shape of the locking part and the locking jaw shape of the right case by rotation of the locking part. The upper inner surface of the left case and the right case is formed with a groove-shaped left uneven groove 11 and a right uneven groove 21 extending in parallel with the upper surfaces of the left and right cases, respectively. And when the right case is fastened, the protection plate is inserted into the left uneven groove and the right uneven groove, so that the protective plate is on the left side. Characterized in that the fastening device and the right case.

In one embodiment, the upper side of the protective plate 40 is formed with a latch-shaped protection plate protruding in the lateral direction, the central inner surface of the left uneven groove 11 of the left case 10. The protective plate latching jaw 14 having a locking step shape corresponding to the protective plate latch 41 is formed, and the protective plate 40 is inserted into the left uneven groove and the right uneven groove. It is characterized in that the protective plate 40 is fastened simultaneously to the left case and the right case by being fastened to the protective plate engaging jaw (14).

In one embodiment, the locking portion 50 is a cylindrical member extending perpendicular to the rotational direction of the left and right cases, the key insertion groove of the groove shape corresponding to the shape of the key of the protective cap on the front surface 502 is formed, the rotating cylinder 51 is formed on the rear surface of the two locking cylinder fixing latch 504 facing each other; An annular member comprising: a case fastening hook 52 protruding in a horizontal direction on a side surface of the rotary cylinder; And a coil spring-shaped member wound around an outer circumferential surface of the rotary cylinder, one end of which is fixed to the rotation cylinder fixing latch 504 and the other end of which is fixed to one side of the left case, thereby providing an elastic force to the rotation of the rotation cylinder. Rotation cylinder spring 53 which provides a, and the rotation cylinder is provided with a restoring force for rotation by the rotation cylinder spring fixed to one end and the other end, the restoring force is provided for the case fastening hooker, The fastening of the left and right cases is characterized in that it is performed automatically.

In one embodiment, the lock is attached to the front of the right case, by including an elastic member extending in the left case direction, the locking member 60 further provides a force pushing the elastic member against the left case. Characterized in that.

In one embodiment, the locking confirmation unit 60, a coil spring-like member as a confirmation spring extending in the horizontal direction toward the left case (61) ; A rod-shaped member extending in a horizontal direction between the left case and the right case and having a support pole protrusion 622 formed at the center thereof, wherein the confirmation spring is inserted into one side of the support pole protrusion 622. Supporting the spring in the horizontal direction Spring support poles 62 ; A spring support plate 63 having a plate- shaped member having a hole-shaped support pole insertion hole 632 in which the spring support pole is inserted is formed at a center thereof, and having a latch-shaped support plate latch 634 formed on one side facing the right case . Includes, the right side case is formed with a support plate latching jaw 23 of the latching jaw shape corresponding to the support plate latch, the confirmation spring 610, the support pole projection jaw 622 of the spring support pole, By providing an elastic force between one side of the right case in which the support plate engaging jaw 23 is located, the spring support pole 620 is characterized in that it provides an elastic force between the left case and the right case.

According to the present invention, since the locking operation becomes easier by the locking portion, the work efficiency of the operator is improved.

In addition, according to the present invention, since the operator can check whether the lock operation is completed by the lock check unit, the operator's work efficiency is improved.

In addition, according to the present invention, by the transparent protective plate which is fastened to the left and right cases at the same time, the misoperation of the valve can be confirmed without opening and closing the protective cap as well as more firmly fixed by the protective plate engaging jaw.

1 is a view showing a valve protection cap 100 according to the present invention.
2A and 2B are side perspective views of the left case, and FIG. 2C is a side perspective view of the right case.
3A is a perspective view of the protective plate 40, and FIGS. 3B and 3C are side cross-sectional and perspective views in which the protective plate is fastened to the right and left cases.
4 is an exploded perspective view of the left case of the present invention.
5A and 5B are a perspective view and a plan view of the locking portion 50.
6A and 6B are a perspective view and a plan view of a rotating cylinder spring.
7 is a perspective view of a case hooker.
8 is a view showing a process of the locking unit performs a locking operation of the present invention.
Figure 9a is a perspective view showing a valve protection cap according to another embodiment of the present invention, Figure 9b is a perspective view of the locking check unit.
10 is an exploded perspective view of the locking check unit.
11 is a view showing the operation and effect of the locking check unit, showing a principle of applying elasticity to the left and right cases so that the locking check unit can confirm the lock.

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

1 is in accordance with the present invention Valve protection cap (100)  It is a figure which shows. 2A and 2B show the left case Side perspective view 2c shows the right case Side view .

The valve protection cap 100 according to the present invention includes a left case 10, a right case 20, a case hinge part 30, a protection plate 40, and a locking part 50.

The left case 10, as shown in Figure 2a, is located on one side of the protective cap as a semi-cylindrical member having openings formed in the upper and lower portions.

The right case 20 has openings formed at upper and lower portions thereof and is located at the other side of the protective cap as a semi-cylindrical member facing the left case. That is, the left and right cases represent a state in which the cylindrical members having openings formed in the upper and lower portions are cut in half in the longitudinal direction.

On the upper inner side surfaces of the left and right cases, groove-shaped left uneven grooves 11 and right uneven grooves 21 extending parallel to the upper surfaces of the left and right cases are formed, respectively.

The case hinge part 30 is a hinge-shaped member and is attached to the rear sides of the left and right cases so as to rotatably connect the left and right cases. The front and rear parts of the left and right cases are closed by the hinge operation of the case hinge part, thereby protecting the valve inside the valve protection cap from malfunction. The locking operation needs to be additionally performed, which will be described in the locking unit.

3A shows the protection plate 40 Perspective view 3b and 3c show that the protective plate is fastened to the right and left cases Side view  And perspective view.

The protection plate 40 is a transparent plate-shaped member, and has a shape corresponding to the shape of the cross-section of the state in which the left case and the right case are hinged. In the present invention, since the cross-sectional shape when the left and right cases are combined is a circular shape, the protective plate is circular. The protection plate 40 is inserted into the left uneven groove 11 of the left case and the right uneven groove 21 of the right case. When the left and right cases are fastened by hinge coupling during operation of the valve protection cap, the protection plate is surrounded by the left and right grooves and the right uneven groove, so the protection plate is fastened to the left and right cases.

In one embodiment, as shown in Figure 3b, on the upper side of the protective plate is formed a latch claws 41 of the latch shape protruding in the lateral direction. In addition, a protective plate latching jaw 14 having a locking jaw shape corresponding to the protective plate latch 41 is formed on a central inner surface of the left uneven groove 11 of the left case. When the protection plate is inserted into the left and right grooves and grooves when the left and right cases are coupled, the protection plate latch 41 is fastened to the protection plate latching jaw 14 so that the protection plate is simultaneously attached to the left and right cases. Is fastened.

According to this embodiment, the protection plate 40 is more firmly fixed by the latching of the protection plate latch and the protection plate latching jaw in addition to the left uneven groove and the right uneven groove.

4 is a left side case of the present invention Exploded perspective view 5a and 5b are Of the locking part 50  6A and 6B are perspective and plan views of the rotating cylinder spring, and FIG. Case hook hook It is a perspective view .

In one embodiment, as shown in FIG. 4, the locking unit 50 includes a rotation cylinder 51, a case fastening hooker 52, and a rotation cylinder spring 53.

The rotary cylinder 51 is a cylindrical member extending in the direction perpendicular to the rotational direction of the left case 10 and the right case 20. The rotary cylinder 2 has a groove-shaped key insertion groove 502 corresponding to the shape of the key of the valve protection cap 100 at the front side, and has two locking cylinders facing each other at the rear side. The fixed latch 504 extends in the same direction as the extending direction of the rotary cylinder.

Case fastening hook 52 is an annular member, protruding in the horizontal direction on the side of the rotary cylinder. In one embodiment, as shown in Figure 7, it may be formed of a ring-shaped body 525 fastened to the outer circumferential surface of the rotary cylinder and a ring-shaped 521 protruding from the ring-shaped body. The case fastening hook 52 extends in the direction toward the front portion of the right case and rotates by the rotation of the rotation cylinder.

The rotary cylinder spring 53 is a coil spring-shaped member wound around the outer circumferential surface of the rotary cylinder as shown in Fig. 6A. As shown in FIG. 6B, the rotating cylinder spring 53 has one end 531 fixed to the rotating cylinder latch 504 and the other end 535 fixed to one side of the left case. That is, in the rotary cylinder spring 53, one end of the coil spring extends linearly into the coil spring, and the other end extends linearly outward of the coil spring. The one end 531 is inserted into the center of the rotation cylinder fixing latch 504 of the rotary cylinder and the other end 535 is fixed to one side of the right case.

8 shows the present invention Locking part Locking action  As a drawing showing a process to be performed, Locking part  With rotating cylinder Between the rotating cylinder springs  Elasticity and Hook of case fastening  This figure shows the locking operation in parallel.

The upper figure of FIG. 8 is a figure which shows three steps of the cross section of the rotating cylinder spring 53 fastened to the outer peripheral surface of the rotating cylinder fixing latch 504 of the rotating cylinder 51, and the lower figure is each step of an upper figure. The state of the case fastening hook 52 corresponding to FIG.

In the leftmost figure, the rotating cylinder spring 53 is fastened to the rotating cylinder 51 and is not subjected to any elasticity. Receiving no elasticity, the other end 535 of the rotation cylinder spring of the left cylinder is positioned so that the position of one end 531 of the rotation cylinder spring 53 is located at the center between the two rotation cylinder fixing latches 504 of the rotation cylinder. It is because it is fixed on one side.

In this state, the case fastening hooker 52 is in the state extended horizontally. In addition, the left case and the right case are separated.

In the central figure, when the operator rotates the rotary cylinder using a key (m1), the other end 535 of the rotary cylinder spring is fixed, and one end 531 of the rotary cylinder spring rotates in the plane of the coil spring. Therefore, it has a restoring force in the opposite direction, that is, in the opposite direction to m1.

In this state, the case fastening hooker 52 rotates in the same direction m3 as the rotation direction m1 of the rotation cylinder. However, like the rotary cylinder, the case fastening hooker 52 has a restoring force in a direction opposite to m3.

In the far right figure, when the operator releases the key, ie, removes the force applied to the rotating cylinder, the rotating cylinder moves in the m2 direction by the restoring force stored in the coil spring.

In this state, the case fastening hook 52 is rotated in the direction of the restoring force, that is, m4 direction in accordance with the rotation of the rotary cylinder is fastened to the locking jaw 25 of the right case at this time.

According to this embodiment, the elasticity is provided for the locking action, whereby the fastening of the left and the bootscase is more firmly fixed, thereby further reducing the probability of malfunction of the operator. That is, according to this embodiment, the operator rotates the rotary cylinder, joins the left case and the right case, and the locking action of the valve protection cap is performed by the step of releasing the force applied by the operator to the rotary cylinder. At this time, if the operator releases the force after rotating the rotary cylinder by using the force, the left case and the right case are fastened, and the elasticity is applied in the opposite direction between the fastened case fastening hook 52 and the locking jaw 25. However, it does not occur when the case fastener opens the left and right cases by other external force. In addition, when the worker malfunctions, elasticity is applied in the opposite direction, so that it can be recognized that the valve protection cap is opened, which is an indicator of the state of the valve protection cap, which further reduces the probability of the operator's malfunction. do.

9A is another embodiment of the present invention Example  According Valve protection cap  representative Perspective view 9b is Locking Confirmation Part Perspective view 10 is Locking Confirmation Part Exploded perspective view .

This embodiment further includes a locking check unit 60.

The locking check unit 60 is attached to the front side of the right case and includes an elastic member extending in the left case direction.

The locking check unit 60 includes a check spring 61, a spring support pole 62, and a spring support plate 63.

The confirmation spring 61 is a coil spring-shaped member and is positioned in a state extending in the horizontal direction toward the left case.

The spring support pole 62 is a rod-shaped member extending in a horizontal direction between the left case and the right case, and a protrusion pole support 622 is formed at the center thereof. The confirmation spring 61 is inserted into the outer circumferential surface of the spring support pole 62, one end of which is supported by the support pole protrusion 622. In addition, since the spring support pole is located inside the confirmation spring 61, the spring support pole guides the spring in the direction of the elastic action during the elastic action of the confirmation spring.

The spring support plate 63 is a plate-shaped member, and a hole-shaped support pole insertion hole 632 is formed at the center thereof, and a support plate latch 634 is formed at a side opposite to the direction in which the spring support pole is inserted. The support plate latch 634 is a member of a latch shape protruding from the spring support plate 63 so as to face the right case, and is fastened to a support plate latching jaw 23 formed in one side of the right case.

11 is Locking Confirmation Part  As a drawing showing the operation and effects, Locking confirmation part  Figure is a diagram showing the principle of applying elasticity to the left and right cases so that the operator can confirm the lock.

11 shows a cross-sectional view of the side surface between the left and right cases when the left case and the right case are separated, and the bottom view shows the left case and the right when the left case and the right case are fastened by the bonding of the left case and the right case. The cross section of the side surface of a case is shown.

In the above figure, the spring support pole 62 is located between the spring support plate and the right case with the confirmation spring 61 fitted. At this time, one end of the confirmation spring is supported on one side of the right case, and the other end of the confirmation spring is supported by the support pole protrusion 622 (that is, between a1 and a2). In other words, the elastic length becomes L2. At this time, the distance d1 of the left and right cases is greater than the length L1 of the spring support pole 62 protrudes from the spring support plate. Therefore, the confirmation spring is not in force.

In the figure below, when the left case is pushed by the operator to the right case, the end of the spring support pole 62 reaches the side of the left case, from which the confirmation spring reduces to the elastic length L4 while generating a restoring force. That is, the pushing force from the right case to the left case is generated by the contraction of the confirmation spring. Since the operator randomly pushes the left side case to the right side, the pushing force remains latent as a restoring force. In this state, if the distance d2 between the left case and the spring support pole is narrowed to a distance enough to be fastened by the case fastening hook 52 and the case fastening jaw 25, the case fastening hook and the case fastening jaw 25 are fastened to each other. Therefore, even if the operator removes the force, the left case and the right case do not open. However, even in this state, there is a pushing force, that is, an elastic force, between the left case and the right case by the confirmation spring. This state has two advantages.

First, since the physical separation ensures the internal lock state, the operator does not need to check the lock, thereby improving work efficiency and reducing the probability of malfunction. Since the elastic member provides a pushing force to the left case, the left case is always physically separated from the right case unless the left case is locked from the right case. Therefore, the operator can recognize the state of the valve protection cap without touching or operating the valve protection cap, and, conversely, can check the locking state of the valve protection cap. In other words, you can be 100% sure that you are locked out if you are not physically open.

Second, the lock release phenomenon is reduced. Even if the left and right cases are fastened by the case fastener, the external force is present and this may cause the lock to loosen. However, since the left and right cases are fastened by the case fastening hook in the state where the left and right cases have a pushing force by the locking check unit, they have some resistance against external forces. That is, a friction force is generated between the case fastening hook and the case catching jaw by the elasticity generated by the locking check unit, and the friction force acts as a resistance to external forces, thereby reducing the possibility of locking loosening. As a result, the torsion of malfunctions is reduced.

So far I looked at the center of the preferred embodiment for the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

For example, although the left case and the right case are specified as left and right in the present specification, the left and right cases may be converted from each other, provided that all other components are oriented. This is because the left and right sides are merely symmetrical elements, and there is no particular meaning in the operation of the present invention.

10: left case 20: right case
30: case hinge portion 40: protective plate
11: left uneven groove 14: guard plate locking jaw
21: right uneven groove 25: case fastening jaw
50: locking unit 52: case fastening hook
51: rotating cylinder 53: rotating cylinder spring
60: locking confirmation unit 61: confirmation spring
62: spring support pole 63: spring support plate

Claims (5)

delete In the protective cap 100 for the valve handle to prevent the wrong operation of the valve handle,
A left case (10) positioned at one side of the protective cap as a semi-cylindrical member having openings formed at upper and lower portions thereof;
Right case 20 positioned on the other side of the protective cap and having a locking step shape at a side with an opening on the top and bottom is formed as a member of semi-cylindrical shape opposed to the left case;
A case hinge portion 30 attached to the rear sides of the left case and the right case as a hinge-shaped member to rotatably connect the left case and the right case ;
A transparent plate-like member, comprising: a protective plate (40) having a shape corresponding to the shape of a cross section in a state where the left case and the right case are hinged; And
And a cylindrical member having an annular shape attached thereto, the locking portion 50 being attached to the front side of the left case in a state rotatable perpendicularly to the rotational direction of the case hinge portion.
The right case has a locking jaw shape formed at a position and a shape corresponding to the ring shape of the locking portion, and the hooking shape of the locking portion and the locking jaw shape of the right case are fastened by the rotation of the locking portion. The right case is locked,
The upper inner surface of the left case and the right case is formed with a groove-shaped left uneven groove 11 and a right uneven groove 21 extending in parallel with the upper surfaces of the left case and the right case, respectively. When the case and the right case are fastened, the protective plate is inserted into the left uneven groove and the right uneven groove, whereby the protective plate is fastened to the left case and the right case.
The upper side of the protective plate 40 is formed with a locking plate latch 41 of the clasp protruding in the lateral direction,
On the central inner surface of the left uneven groove 11 of the left case 10, a protective plate locking jaw 14 having a locking step shape corresponding to the protective plate latch 41 is formed.
When the protective plate 40 is inserted into the left uneven groove and the right uneven groove, the protective plate latch 41 is fastened to the protective plate catching jaw 14 so that the protective plate 40 is attached to the left case and the right case. Protective cap for the valve handle, characterized in that the fastening at the same time. The method of claim 2, wherein the locking unit 50,
A cylindrical member extending perpendicular to the rotational direction of the left and right cases, a groove-shaped key insertion groove 502 corresponding to the shape of the key of the protective cap is formed on the front surface, and the rear surface of the member is opposed to each other. A rotation cylinder 51 in which a rotation latch fixing latch 504 of a dog latch shape is formed;
An annular member comprising: a case fastening hook 52 protruding in a horizontal direction on a side surface of the rotary cylinder; And
A coil spring-shaped member wound around an outer circumferential surface of the rotary cylinder, one end of which is fixed to the rotation cylinder fixing latch 504 and the other end of which is fixed to one side of the left case, thereby providing elastic force to rotation of the rotation cylinder. It includes a rotating cylinder spring 53 ,
The rotation cylinder is provided with a restoring force for rotation by the rotation cylinder spring fixed to one end and the other end, so that a restoring force is provided to the case fastening hook 52, and the fastening of the left and right cases is performed automatically. Protective cap for the valve handle, characterized in that the. According to claim 3, It is attached to the front of the right case, by including an elastic member extending in the left case direction, by further providing a locking check unit 60 for providing a force pushing the elastic member against the left case Protective cap for the valve handle comprising a. The method of claim 4, wherein the locking check unit 60,
A confirmation spring (61) extending horizontally toward the left case as a coil spring shaped member;
A rod-shaped member extending in a horizontal direction between the left case and the right case and having a support pole protrusion 622 formed at the center thereof, wherein the confirmation spring is inserted into one side of the support pole protrusion 622. Supporting the spring in the horizontal direction Spring support poles 62 ;
A spring support plate 63 having a plate- shaped member having a hole-shaped support pole insertion hole 632 in which the spring support pole is inserted is formed at a center thereof, and having a latch-shaped support plate latch 634 formed on one side facing the right case . Including,
The right side case is formed with a support plate locking jaw 23 of the locking step shape corresponding to the support plate latch,
The confirmation spring 61 provides an elastic force between the support pole protrusion 622 of the spring support pole and one side surface of the right case in which the support plate catching jaw 23 is located, thereby providing the spring support pole ( 620 is a protective cap for the valve handle, characterized in that to provide an elastic force between the left case and the right case.

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