KR200476141Y1 - Sealing device of closed valve - Google Patents

Abstract

The present invention relates to an apparatus for sealing a lock portion (14) that maintains a locked state of an open / close valve in a valve housing (10). The valve housing 10 is provided with a valve stem 20 in which the fluid is movable and inside the locking portion 14 of the valve housing 10. The valve stem 20 is formed of an opening / closing ball 21 having an opening / closing path 22 to restrict fluid movement in the valve housing 10. A lock pin 32 is used to lock the rotation of the valve stem 20 in a locked state and a lock mechanism 30 is used to lock the lock pin 32. In the present invention, the entrance of the insertion space 15 into which the lock mechanism 30 is inserted is sealed using the sealing member 40 and the lock 50.

Description

[0001] The present invention relates to a sealing device of a closed valve,

The present invention relates to an apparatus for sealing a lock state of an open / close valve, and more particularly to an apparatus for opening / closing a valve locked state having a structure for sealing a lock state of an open / close valve for shutting off supply.

The opening / closing valve has a structure capable of arbitrarily opening and closing an internal flow path through which the fluid moves. So, if you need to cut off the flow of the euro, you can simply change the status of the operation by simply lever.

Therefore, a locking structure is required to prevent the lever of the opening and closing valve from being arbitrarily operated. And a mechanism for maintaining the lock state in a structure in which the valve is communicated with the inside of the valve is configured to use a separate mechanism for unlocking or re-locking the valve. However, this has the problem that the unlocked tool can be unlocked with a similar tool or an accessible tool.

In addition, there is a problem that the entrance of the mechanism for changing the locking state is opened, so that the internal locking structure may be dirty or corroded and the lock can not be released by the tool.

Korea Patent Publication No. 10-2003-0006478 Korean Patent Publication No. 10-2008-0071780 Korean Utility Model No. 20-2011-0002381

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a lock-state seal apparatus for an open / close valve that enables an unspecified person to seal a valve in a locked state.

Another object of the present invention is to provide a lock-state seal apparatus for an on-off valve that seals the inlet of a lock structure to prevent the lock structure of the open / close valve from being opened to the outside to prevent contamination and corrosion.

According to an aspect of the present invention, there is provided a valve apparatus comprising: a valve housing having a fluid path through which fluid flows and an outflow path through which fluid flows; And a lock pin inserted into the valve stem to fix the closed state of the flow path, an insertion space formed at one side of the valve housing and having the lock pin therein, A virtual connection line connecting the two side walls of the insertion space to form a lock coupling hole and connecting the lock coupling hole includes a lock portion which crosses the center of the insertion space and a latch which passes through the lock engagement hole is provided on the lock body And a lock provided at an entrance of the insertion space to prevent foreign matter from entering the insertion space through an inlet of the insertion space And a sealing body having a lock through hole formed through the latch provided on the lock body and having a connection hook hooked to the valve housing.

Wherein the valve stem is provided with an opening / closing ball having an opening / closing path, and the opening / closing path is opened / closed according to the rotation of the opening / closing ball.

And a locking hole is formed at one side of the valve stem to restrict the rotation of the opening and closing ball by inserting the locking pin.

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A lock through hole is formed in the sealing body so that the latch provided on the lock body passes through the lock body and the lock through hole is opened to the end of the insertion portion of the sealing body.

The following effects can be obtained in the locking state sealing apparatus of the opening / closing valve according to the present invention.

The present invention has the effect of blocking the entrance of the locking mechanism that can unlock the opening / closing valve by shielding the insertion space in which the locking mechanism of the opening / closing valve enters. It is also possible to prevent the use of other similar tools in addition to a separate locking mechanism.

In addition, the present invention can seal the entrance of the insertion space with a sealing member to prevent foreign matter and rainwater from entering, thereby reducing the possibility of contamination and corrosion of the internal locking structure. This has the effect of preventing the lock state from being released due to dirt or corrosion of the lock structure or vice versa.

FIG. 1 is an exploded cross-sectional view showing an important part of a preferred embodiment of a lock-state seal apparatus for an open / close valve according to the present invention. FIG.
FIG. 2 is a partial cross-sectional perspective view showing an important configuration of the embodiment shown in FIG. 1; FIG.
3 is a perspective view showing an external configuration of the embodiment shown in Fig.
4 is a perspective view showing another example of a sealing member constituting the present invention;
Fig. 5 is a perspective view showing still another example of the sealing member constituting the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a lock-state sealing device of an open / close valve according to the present invention will be described in detail with reference to the accompanying drawings.

According to the drawings, the connection ring portion 12 is formed on one side of the valve housing 10. The connection ring part 12 protrudes from one side of the valve housing 10 and is formed to have an annular shape due to the through-hole 13. In the present embodiment, the connection claw portion 12 has a thin rectangular parallelepiped shape and the through hole 13 passes through the center thereof. The through hole 13 is a hole penetrating through the connection claw portion 12 so that the sealing member 40 described below can be connected to the connection claw portion 12.

The valve housing 10 is provided on the outer surface thereof with a lock portion 14 having an insertion space 15 formed therein. The locking portion 14 is formed parallel to the valve housing 10 in the longitudinal direction, and the insertion space 15 passes through the locking portion 14. The insertion space 15 is formed to communicate with the stem hole 20 'to be described below. The insertion space (15) has one end opened to the outside of the valve housing (10).

Locking holes (16) are formed in both side walls of the lock portion (14). It is preferable that a virtual connecting line connecting the two lock binding holes 16 pass through the center of the insertion space 15. The lock-engaging hole 16 should be sized to pass through the side wall of the insertion space 15 and pass through the latch 54 of the lock 50, which will be described below.

A valve stem 20 is provided in a stem hole 20 'in which a flow path 18 through which fluid can move is formed in the valve housing 10 in a longitudinal direction and vertically communicated with the flow path 18, . The stem hole 20 'communicates the outside of the valve housing 10 with the flow path 18. The stem hole 20 'is in communication with the insertion space 15 of the locking part 14.

The valve stem 20 has an opening and closing ball 21 formed at one side thereof and the opening and closing ball 21 is formed in a spherical shape and an opening and closing path 22 passing through the opening and closing ball 21 is formed at the center. The opening and closing ball 21 is formed with a cylindrical extension portion 23 and the extension portion 23 is formed with a lock hole 25 corresponding to the lock pin 32 to be described below. At the other side of the opening / closing ball 21, a lever connecting portion 24 formed by a threaded portion is extended.

3, an opening / closing lever 24 'is connected to the lever connection part 24 and the valve stem 20 is rotated by the opening / closing lever 24' so that the direction of the opening / closing path 22 is different So that the flow passage 18 of the valve housing 10 is opened and locked.

In the opened state of the on-off valve, the fluid flows through the inflow pipe 26 connected to one side of the valve housing 10. A threaded portion is formed at an end of the inflow pipe 26 so that the inflow pipe 26 can be connected to the valve housing 10. An outflow pipe 27 is connected to an outflow path 27 'formed through the valve housing 10 so as to communicate with the flow path 18.

 The valve cap 28 provided on the other side of the valve housing 10 is formed of the same material as that of the valve housing 10 so that one end of the valve cap 10 can be connected to the end of the valve housing 10 in the form of a screw. The other end of the valve plug 28 may have a polygonal cross-section and a tool may be engaged to enhance tightening of the screw. In the present embodiment, it is formed into an octagonal shape.

The valve housing (10) is provided with a counterflow chamber (29) corresponding to the valve plug (28). The backflow prevention zone 29 is formed by connecting two disk-shaped pads at intervals. The backflow prevention zone 29 may be included in the present embodiment as a water meter valve, but may not be included in other embodiments other than the water valve.

The lock mechanism 30 is formed in a cylindrical shape as a whole, and the head portion 31 is formed so that it can be held and rotated by hand. The head portion 31 is larger in diameter than the other portion, and has a lattice hatched around the side surface, thereby increasing the friction with the finger.

The locking mechanism 30 may insert an opposite portion of the head portion 31 into the insertion space 15. The inside of the lock mechanism (30) is formed to correspond to one side of the lock pin (32). The other side of the lock pin 32 is formed to be insertable into the lock hole 25 formed in the extended portion 23.

The entire shape of the sealing member 40 is formed by an integral cylindrical shape and is formed so as to be hollow, and is made of rubber or synthetic resin having elasticity through an injection molding method. The insertion portion 42 of the sealing member 40 is formed to be equal to or smaller than the inner diameter of the insertion space 15 of the valve housing 10 so as to be inserted into the inlet of the insertion space 15 . Further, in this embodiment, the insertion portion 42 has a length that does not reach the lock binding hole 16.

The insertion portion 42 is formed with a sealing protrusion 43 which is uniformly formed along the periphery of the outer surface. The sealing protrusion 43 is formed to be equal to or larger than the inner diameter of the insertion space 15 so that the insertion space 15 can be sealed.

The lid part 44 is formed on one side of the sealing member 40 and extends to one end of the insertion part 42. The lid part 44 is formed to have an area larger than the entrance of the insertion space 15 so as to cover the entrance of the insertion space 15. In the present embodiment, the lid part 44 is formed in a disc shape along the entire shape of the sealing member 40, but may be in any form as long as it can completely cover the opening of the insertion space 15.

A connecting portion 46 is provided on the side surface of the lid portion 44 in the form of a thin line. The connection portion 46 may be integrally formed with the sealing member 40, or may be formed separately. A connecting hook 47 is formed at the other end of the connecting part 46 to engage with the connecting hook 12. The connecting hook 47 is formed in a conical shape and a portion having the largest area in the transverse section is formed to be equal to or larger than the size of the through hole 13 formed in the connecting hook 12.

In the present invention, a lock 50 for sealing is provided. The lock body (52) forms a skeleton and an outer appearance of the lock (50). The lock body 52 is provided with a key bundle (not shown) for performing locking and unlocking operations by a key.

The lock body (52) is provided with a latch (54). The latch 54 is formed in a U shape in this embodiment and is positioned through the lock binding hole 16. The lock 50 may be any ordinary lock. However, the diameter of the cross section of the latch 54 of the lock 50 to be used must be smaller than the size of the lock coupling hole 16 formed in the insertion space 15.

The sealing member 140 constituting another embodiment of the present invention will be described with reference to FIG. The sealing member 140 is formed such that the insertion portion 142 is formed longer than the embodiment described above and the lock portion 14 is formed on both sides of the insertion portion 142 with a lock And a through hole 148 is formed through the through hole. When the lock through hole 148 is provided, the sealing member 140 is also locked to the locking portion 14 together with the lock 50.

Next, the configuration of the sealing member 240 constituting another embodiment of the present invention will be described with reference to FIG. The sealing member 240 also has a longer insertion portion 242 than the above-described embodiment and a lock through hole 248 is formed on both sides of the insertion portion 242. And the lock through hole 248 is long enough to be opened to the end of the insertion portion 242.

Although the sealing member 240 is not locked to the locking portion 14 by the lock 50 in the present embodiment, the sealing member 240 can be inserted deeper into the insertion space 15, (Not shown).

Hereinafter, a locking state sealing device of the present invention having the above-described construction will be described in detail.

In the opened state of the valve, the fluid flows into the valve housing 10 through the inlet pipe 26 provided at one side of the valve housing 10, and the introduced fluid passes through the flow passage 18, It passes. The fluid passing through the flow path 18 escapes through an outflow path 27 'communicating with the side surface of the valve housing 10. At this time, the backflow prevention chamber 29 is moved in the direction of the valve plug 28 by the pressure of the fluid passing through the flow path 18.

On the other hand, in order to cut off the supply of fluid through the on-off valve, the open / close path 22 is closed by closing the open / close path 22 by facing the side walls of the flow path 18 by operating the open / close lever 24 ' . To this end, the valve stem 20 may be rotated using the opening / closing lever 24 '.

The lock mechanism 30 is inserted through the insertion space 15 after the open / close lever 24 'is in the locked state, that is, the open / close path 22 is not communicated with the flow path 18, The locking pin 32 is inserted into the locking hole 25 by tightening the locking pin 32 provided inside the locking part 14. At this time, the backflow prevention chamber 29 moves in the direction opposite to the valve plug 28 to prevent the backflow of the fluid that can flow into the outflow pipe 27 by blocking the outflow passage 27 '. This state is a locked state of the open / close valve, and in this state, the fluid is no longer supplied through the open / close valve.

On the other hand, when it is necessary to forcibly maintain the state in which the supply of the fluid through the opening / closing valve is interrupted, for example, when water supply is stopped and water supply is interrupted, the opening / It is sealed.

The connection hook 47 of the sealing member 40 is inserted into the connection claw portion 12 of the valve housing 10. The connection hook 47 is formed in a conical shape so that it can easily pass through the through hole 13 of the connection claw portion 12 but is difficult to be pulled out so that the connection portion 46 connected to the connection hook 47 is disconnected do.

The inserting portion 42 of the sealing member 40 is inserted into the insertion space 15 of the valve housing 10 so as to simultaneously pass through the lock binding hole 16 formed in both side walls of the insertion space 15 Hang the latch (54) of the lock (50). After the latch 54 is inserted into the lock body 52, the key is locked with the key of the lock body 52 to seal the lock body 52. The locking tool 30 can not enter the insertion space 15 due to the latch 54 passing through the insertion space 15.

In other words, since the latch 54 passes through the center of the insertion space 15 and coincides with the center of the lock hole 26 and the lock pin 32, even if the lock mechanism 30 is inserted, Can not.

In the embodiment shown in FIGS. 1 to 3, since the sealing member 40 and the lock-engaging hole 16 are not associated with each other, the order of using the sealing member 40 and the lock 50 is However, if the sealing member 140 having the lock through-hole 148 of another embodiment is used, the sealing member 140 must be inserted into the insertion space 15 first.

When the insertion hole 142 is formed with the lock through hole 148, it is possible to engage the latch 54 after aligning the positions of the lock engagement hole 16 and the lock through hole 148.

5 may be used to secure the latch 54 to the lock binding hole 16 and then to the lock through hole 248 The sealing member 240 may be inserted in correspondence with the latch 54.

Next, in order to open the on-off valve, the lock 50 is first opened with the key to release the seal. After removing the latch 52 of the lock 50 which crosses the insertion space 15, the sealing member 40 is pulled out. The order of removal of the sealing member 40 and the lock 50 may be changed according to the embodiment.

The lock mechanism 30 is inserted into the insertion space 15 of the unsealed valve so as to correspond to the lock pin 32 and the head portion 31 of the lock mechanism 30 is rotated, 32 are removed from the lock hole 25. In this state, it is possible to operate the opening / closing lever 24 'of the opening / closing valve and arbitrarily regulate the movement of the fluid.

The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and those skilled in the art will be able to make various changes and modifications within the scope of the claims It is self-evident.

For example, the sealing member 40 may not be used in this embodiment. The sealing member 40 is not necessarily required because it is independent of the structure for sealing the opening and closing valve. Therefore, the connection claw portion 12 connecting the sealing member 40 and the through hole 13 included in the connection claw portion 12 may not be used at the same time.

10: valve housing 12:
13: through hole 14: locking portion
15: Insertion space 16: Locking hole
18: Flow passage 20: Valve stem
20 ': Stem hole 21: Opening and closing ball
22: open / closed by 23: extension part
24: lever connecting portion 24 ': opening / closing lever
25: lock hole 26: inlet pipe
27: Outflow pipe 27 ': Outflow path
28: valve plug 29: reverse flow earth
30: Locking mechanism 31:
32: locking pin 40: sealing member
42: insertion portion 43: sealing projection
44: lid part 46: connection part
47: hook 50: lock
52: lock body 54: latch
140: sealing member 142:
143: sealing projection 144:
146: connection 147: connection hook
148: Lock through hole 240: Sealing member
242: insertion portion 243: sealing projection
244: lid portion 246: connection portion
247: Connection hook 248: Lock through hole

Claims (7)

A valve housing having a flow path through which the fluid flows and an outflow path through which the fluid flows,
A valve stem disposed between the flow path and the outflow path for opening and closing movement of the fluid;
A lock pin inserted into the valve stem to fix the closed state of the flow path,
And a lock connection hole is formed through both side walls of the insertion space, and a virtual connection line connecting the lock connection hole is formed in the insertion space, A locking portion which extends across the center of the locking portion,
A lock which is formed in the lock body so that the lock that passes through the lock binding hole is provided,
At least a part of which is inserted into the insertion space through an inlet of the insertion space to block foreign substances from entering the insertion space through an inlet of the insertion space and a connection hook which is hooked to the valve housing ,
The insertion portion of the sealing body inserted into the insertion space is formed with a lock through hole through which the latch provided on the lock body passes. When the insertion portion is inserted into the insertion space, the lock lock hole And the latch is passed through the lock binding hole and the lock through hole at the same time.
The apparatus according to claim 1, wherein the valve stem is provided with an opening / closing ball having an opening / closing path, and the opening / closing path is opened / closed according to the rotation of the opening / closing ball.
3. The apparatus according to claim 2, wherein a locking hole is formed at one side of the valve stem, and the locking pin is inserted to restrict rotation of the opening / closing ball.
delete delete delete The lock-state seal apparatus according to any one of claims 1 to 3, wherein the lock through-hole is formed to be opened to the end of the insertion portion of the sealing member.

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