KR101772524B1 - valve shutter - Google Patents

Abstract

The present invention relates to a valve shutter installed in a cylinder (high-pressure gas cylinder) so as to prevent an accident caused by leakage of gas in advance by immediately blocking the leakage of the high-pressure gas in case of emergency. The valve shutter comprises: a handle, a lever, and an air port provided in an upper part, and a housing under the handle. A handwheel is provided inside the housing, wherein the handwheel is interlocked with a gear wheel rotated by a spring to rotate, and blocks the supply of gas by closing a main valve of the cylinder. A support coupled to a neck portion of the cylinder is provided below the housing to adjust a height of the housing. The handwheel has a structure of an inner diameter surface, which varies by combination of multiple angled-shape adjusting bars, to fit into two or more angled shapes among tetragonal, pentagonal, hexagonal, and octagonal shapes of the main valve received in an inner diameter of the handwheel. The support includes a clamp band having a clamp handle coupled to the neck portion of the cylinder, and a lifting/lowering fixing bar vertically fixed to the clamp band and fixing the housing so that the main valve is kept in the handwheel of the housing. An insert ring divided into two corresponding to a diameter of the neck portion is fixed to an inner circumferential surface of the clamp band, and comes in close contact with the neck portion when the clamp handle is tightened.

Description

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a valve shutter, and more particularly, to a valve shutter installed in a cylinder (high-pressure gas cylinder) so as to prevent a safety accident caused by leakage of gas by urgently blocking leakage of high- .

Generally, a pressure gas cylinder (hereinafter referred to as a cylinder) is filled with various gases.

Particularly, cylinders used for semiconductor processing are filled with various kinds of gases of about 250 kinds.

These gases are supplied in the semiconductor process and cause a chemical reaction by the combination of gases. Hundreds to thousands of cylinders filled with gas are controlled through legal regulation in a separate room called a gas supply device.

To this end, the cylinder is provided with a valve shutter for automatically controlling the main valve of the cylinder in case of emergency, since the filled gas is a fatal component such as flammable, corrosive and inert.

Such a valve shutter receives a shutoff signal when an emergency such as a fire or an earthquake occurs while the main valve is normally open, and simultaneously closes the opened main valve to shut off the gas supply.

In the prior art, a handle is provided at the upper part, a case body is formed at the lower part of the handle, and a rotating shaft is rotated inside the case body by a gear wheel which is driven by a spring, A valve shutter for closing a valve, wherein a rotary bar is provided with a fixed bar, and the rotary bar is provided with an air cylinder which is operated to raise and lower the operation bar by air supplied to the rotary bar to control the rotation of the fixed bar, And a sensing bar on which a sensor is mounted is formed so as to detect a rising and falling of the operation bar, and an air supply port is formed in the air cylinder so that the operation bar is operated by supplying air, , The air supply port is connected to a shutoff lever having a lever projecting to the upper portion of the case body, And the air is supplied to and blocked from the air cylinder by the lifting and lowering operation of the lever.

However, the above-mentioned valve shutter can recognize the locking and unlocking state of the gas valve (hereinafter referred to as " main valve ") at a remote place, thereby preventing the occurrence of an accident in advance.

Since the protrusion is formed so as to correspond to only the square shape of the main valve which is mounted on the valve shutter and accommodates the inner diameter of the handwheel in which the main valve of the cylinder is accommodated, There is a fatal problem.

That is, when the position of the valley 9a formed in the main valve 9 is formed at a vertex of an arbitrary pentagon (dot-dash line) as shown in Figs. 1A and 1B, The handwheel 7 having the protrusion 7a formed therein must be applied.

Therefore, there is a problem that the handwheel 7 corresponding to each square of the main valve 9 must be provided.

Further, since the clamp 11 fastened to the neck portion of the cylinder maintains the diameter to be applied only to the diameter of the cylinder neck portion, there is a problem that it can not be applied to the cylinder neck portions of various sizes. Therefore, the clamp must be prepared for each size of the cylinder neck portion.

Korean Patent No. 10-1360312 Korean Patent No. 10-1554101 Korean Patent No. 10-1695137

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems and technical bias, and it is an object of the present invention to provide a handwheel, It is an object of the present invention to provide a valve shutter which is fastened to a cylinder neck portion of various sizes using a clamp band.

According to an aspect of the present invention, there is provided a valve shutter including a handle, a lever, and an air port at an upper portion thereof, a housing at a lower portion of the handle, a gear wheel rotated by a spring- And a support for locking the main valve of the cylinder to cut off the supply of gas, and a support for coupling the housing to the neck of the cylinder to adjust the height of the housing, The wheel is connected to the inner circumferential surface of the handwheel through a combination of a plurality of angled adjusting bars so as to fit at least two or more of square, pentagonal, hexagonal, and octagonal shapes of the respective main valves received in the inner diameter of the handwheel. Wherein the support base includes a clamp band having a clamp handle coupled to a neck portion of the cylinder, And a lifting and retention base fixed vertically and fixing the housing so that the main valve can be held in the handwheel of the housing, wherein an inner circumferential surface of the clamp band corresponds to a diameter of the cylinder neck portion, When the clamp handle is fastened, the two separate insert rings tightly fixed to the neck portion are fixed.

At this time, it is preferable that a plurality of through holes are formed on the inner side surface of the handwheel, and the rectangular adjusting bars are fixed along the inner circumferential surface of the handwheel by fixing bolts passing through the through holes.

The inner surface of the handwheel may have a rectangular, pentagonal, hexagonal, or octagonal pattern that indicates the position of the through hole so that the rectangular adjustment bars can be adjusted and fixed corresponding to the square shape of the main valve. Is preferably formed.

In addition, it is preferable that the through-holes are formed at positions of angles of a quadrangle, a pentagon, a hexagon and an octagon formed on the inner side of the handwheel.

In addition, when the positions of the rectangular adjustment bars are changed according to the angular shape of the main valve, the rectangular adjustment bar fixed at a position where the square, pentagon, hexagon, and octagon start, .

On the other hand, it is preferable that the insert ring has a diameter corresponding to the diameter of each cylinder neck portion and an inner diameter corresponding thereto.

Finally, it is preferable that the insert ring is detachably fixed to the clamp band by fastening bolts.

According to the valve shutter of the present invention having the above-described configuration, since the circumferential surface of the inner circumference of the handwheel is adapted to the square shape of the main valve accommodated through adjustment of the plurality of angled adjusting bars, So that the main valve can be accommodated.

Further, since the insert ring corresponding to the diameter of each cylinder neck portion is detachably coupled to the clamp band, there is a structural effect that the clamp band can be fastened to the neck portion of various sizes.

Above all, the valve shutter having a handwheel and a clamp band having the above advantages has a great advantage that, when mounted on a cylinder in the field, even if the diameter of the cylinder neck portion is different from the square shape of the main valve, the valve shutter can be immediately dealt with in the field.

Figures 1a and 1b are illustrations showing the handwheel of a conventional valve shutter,
Fig. 2 is a side view showing the state in which the valve shutter of the present invention is fastened to the cylinder,
3 and 4 are a bottom view and a planar perspective view showing the structure of the handwheel in the structure of the valve shutter according to the present invention,
5 is a bottom view showing a state in which the rectangular adjustment bar is fixed in a pentagonal shape on the inner circumferential surface of the handwheel,
6 is a bottom view showing a state in which the rectangular adjustment bar is fixed in the shape of a quadrangle with respect to the inner circumferential surface of the handwheel,
FIG. 7 is a perspective view showing a support of a valve shutter according to the present invention,
Fig. 8 is a plan view of Fig. 7 showing a state in which insert rings of various sizes are coupled to the clamp band. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

3 and 4 are a bottom view and a planar perspective view showing the structure of the handwheel in the structure of the valve shutter according to the present invention, and FIG. 5 is a perspective view showing the structure of the handwheel according to the present invention. FIG. 6 is a bottom view showing a state in which the rectangular adjustment bar is fixed in the shape of a quadrangle with respect to the inner circumferential surface of the handwheel. FIG. FIG. 7 is a perspective view showing a support of the valve shutter according to the present invention, and FIG. 8 is a plan view of FIG. 7, showing a state in which insert rings of various sizes are coupled to the clamp band.

2 to 8, the valve shutter 100 of the present invention is provided with a handle 111, a lever 112, and an air port 113 at an upper portion thereof, and a housing 114 And a hand wheel 120 which interlocks with a gear wheel rotated by a spring spring and locks the main valve 115 of the cylinder 116 and cuts off gas supply is provided in the housing 114, And a support base 130 coupled to the neck portion 117 of the cylinder 116 to adjust the height of the housing 114. The valve shutter 100 includes a handle 114, The wheel 120 has a plurality of angular shapes (not shown) so as to fit at least two or more of the tetragonal, pentagonal, hexagonal, and octagonal shapes of the respective main valves 115 accommodated in the inner diameter of the handwheel 120, The support bar 130 forms a deformation structure of the inner circumferential surface through the combination of the adjustment bars 122, A clamp band 131 having a clamp handle 111 coupled to a neck portion 117 of the cylinder 116 and a clamp band 131 vertically fixed to the clamp band 131 to connect the main valve 115 to the housing 114 And a lifting and securing member 134 for fixing the housing 114 to be held in the handwheel 120 of the clamp band 131. The inner circumferential surface of the clamp band 131 is provided with a neck The insert ring 140 is fixed to the neck portion 117 when the clamp handle 111 is tightened. The insert ring 140 is fixed to the neck portion 117 by tightening the clamp handle 111 when the clamp handle 111 is tightened.

As shown in FIG. 2, the valve shutter 100 of the present invention senses a shutoff signal in the event of an emergency and locks the main valve 115 of the cylinder 116. The handle 111 and the lever 112 And an air port 113. A housing 114 is provided under the handle 111. [

At this time, a spring (not shown) wound around the handle 111 by the rotation of the handle 111 and a rotary gear (not shown) rotated by the spring are disposed in the housing 114, A handwheel 120 coupled to the rotary gear in association with the rotary shaft is coupled to the rotary shaft of the rotary gear.

Here, the structure of the interior of the housing 114 is a general matter, and a detailed description thereof will be omitted.

The handwheel 120 serves to control the gas supplied by opening or closing the cock 118 through rotation while accommodating the main valve 115 of the cylinder 116. [

A lower portion of the housing 114 is provided with a support base 130 coupled to the neck portion 117 of the cylinder 116 to mount the housing 114 on the cylinder 116 in a height-adjustable manner.

On the other hand, an air hose (not shown) is connected to the air port 113 so as to supply air from the outside.

3 to 6, the handwheel 120 of the valve shutter 100 of the present invention having the above-described structure has a structure capable of changing combinations of various angles of the main valve 115 .

That is, the handwheel 120 is fitted to at least two or more of square, pentagonal, hexagonal, and octagonal shapes of the respective main valves 115 to be accommodated by the inner diameter of the cylindrical handwheel 120 So as to form a deformation structure of the inner circumferential surface of the handwheel 120 through the combination of the plurality of rectangular control bars 122.

More precisely, if the main valve 115 has four quadrangular base corrugations 115a, five quadrangular prisms 115a, six hexagonal prisms 115a and eight octagonal prisms 115a, There are eight.

A plurality of through holes 121 are formed along the inner circumferential surface of the inner plate 120a perpendicular to the inner diameter of the handwheel 120 so as to form the above deformed structure, 121 are fixed along the inner circumferential surface of the handwheel 120 while being engaged with fixing bolts 123 passing through the handwheel 120, respectively.

The rectangular adjustment bar 122 has a length corresponding to the distance from the inner side 120a of the handwheel 120 to the lower inner diameter end and the outer surface of the rectangular adjustment bar 122 is connected to the main valve 115, So that a stable contact state can be maintained. It is needless to say that the rectangular adjustment bar 122 is formed with a coupling hole (not shown) to which the fixing bolt is coupled

At this time, on the inner side surface 120a of the handwheel 120, the rectangular adjustment bars 122 are adjusted to correspond to the square shape of the main valve 115 received in the inner diameter of the handwheel 120, It is preferable that patterns of tetragonal, pentagonal, hexagonal, and octagonal shapes indicating the positions of the holes 121 are formed.

It is preferable that the through holes 121 are formed adjacent to the corner points of the quadrangular, pentagonal, hexagonal, and octagonal shapes formed on the inner side surface 120a of the handwheel 120.

In this embodiment, it is described that two patterns of a quadrangle and a pentagon are displayed on the inner side 120a of the handwheel 120. Since the angles of the main valve 115 can be variously formed, Is not limited.

5 and 6, through-holes 121 corresponding to the respective angles are formed on the inner side 120a of the handwheel 120. In this case, Of course.

At this time, the number of the through holes 121 formed in the inner side surface 120a of the handwheel 120 is eight, which means that the through holes 121 are designated at the positions where the quadrangle and pentagon start, So that various rectangular patterns can be formed.

For this purpose, when the position of the angled adjusting bars 122 is changed according to the angularity of the main valve 115 accommodated in the inner diameter of the handwheel 120, It is preferable that the angular adjustment bar 122 fixed at the position of the hinge 121 is colored so as to be visually expressed so as to be a reference of all prisms.

In this case, when the angular shape of the handwheel 120 needs to be changed, the operator removes the handwheel 120 from the housing 114 to separate the angled control bars 122 that have been fastened, The adjustment bar 122 is checked and the fixed position is confirmed while following a rectangular pattern formed on the inner plate surface 120a extending from the reference square adjustment bar 122. The rectangular adjustment bar 122 The structure of the inner diameter of the handwheel 120 is changed corresponding to the square shape of the main valve 115 to be changed. Then, the modification is completed by coupling the handwheel 120 whose structure has been changed to the housing 114.

5 shows a state in which the rectangular adjustment bars 122 are fixed in a pentagonal shape on the inner circumferential surface of the handwheel 120 along a pentagonal pattern, And the rectangular adjustment bars 122 are fixed in a quadrangular shape along a quadrangular pattern on the surface.

In addition, a hexagonal or octagonal pattern may be further formed on the inner side 120a of the handwheel 120. In this case, the inner circumferential surface of the handwheel 120 may have a hexagonal or octagonal pattern, It will be appreciated that the adjustment bars 122 may be fixed.

Although the rectangular adjusting bar 122 is shown as being coupled to the inner side 120a of the handwheel 120 by the fixing bolts 123 in the present embodiment, the rectangular adjusting bar 122 may be coupled The bonding method is not limited as long as it is possible.

The support base 130 includes a clamp band 131 having a clamp handle 111 coupled to the neck portion 117 of the cylinder 116 as shown in Figs. 2, 7 and 8, a clamp band 131 And an elevating support 134 fixed to the housing 114 such that the main valve 115 can be held in the handwheel 120 of the housing 114. [

A plurality of fastening holes 134a are formed along the longitudinal direction so as to set the fixing height of the housing 114. The fastening knob 135 is coupled through the fastening holes 134a, And fixes the housing 114 fitted to the fixed base 134.

The clamp band 131 is in the form of a circular band having a predetermined width and is in a state where one side is disconnected. A clamp handle 111 having a tightening screw 133 is coupled to the cut band.

On the other hand, the inner circumferential surface of the clamp band 131 corresponds to the diameter of the neck portion 117 of the cylinder 116 fastened to the inner circumferential surface of the clamp band 131, The ring 140 is fixed and the insert ring 140 is detachably fixed to the clamp band 131 by a plurality of fastening bolts 141.

That is, when the diameter of the neck portion 117 of the cylinder 116 is smaller than the diameter of the clamp band 131 to be fastened, the insert ring 140 is compensated for the difference by the difference, So that tightening force can be uniformly applied when the clamp band 131 is fastened.

At this time, it is preferable that the fixed insert ring 140 has an inner diameter corresponding to the diameter of the neck portion 117 of each cylinder 116 to be fastened. The insert ring 140 is prepared according to the type of the neck portion 117. [

If the size of the cylinder 116 is divided into? 80,? 90, and? 120 according to the capacity of the gas filled, only two insert rings 140 corresponding to the neck portion 117 having a capacity of? 80 and? . This is because the neck band 117 having the remaining capacity of? 120 is directly fastened to the clamp band 131.

8 shows a state in which the insert ring 140 to be fastened to the neck portion 117 of the cylinder 116 having a capacity of? 80 and? 90 is fixed to the clamp band 131.

Therefore, when the diameter of the neck portion 117 of the cylinder 116 to be fastened is smaller than the diameter of the clamp band 131, the insert ring 140 corresponding to the neck portion 117 is connected to the clamp band 131 The clamp band 131 is fastened to the neck portion 117 by tightening the clamp handle 111 with the inner diameter of the insert ring 140 sandwiched by the outer diameter of the neck portion 117, 114) can be set to the correct height.

Reference numeral 131 denotes a plurality of through holes formed in the clamp band 131 through which the fastening bolts 141 pass so as to fix the insert ring 140 to the clamp band 131. Reference numeral 140a denotes a clamp band 131, Are formed in the insert ring (140) to which the fastening bolts (141) passing through the through holes of the fastening bolts (141) are fastened.

As described so far, the valve shutter of the present invention has a structure in which the circumferential surface of the inner circumference of the handwheel is adapted to the square shape of the main valve accommodated through adjustment of the plurality of angled adjusting bars, There is an advantageous effect of allowing the main valve to be accommodated.

Further, since the insert ring corresponding to the diameter of each cylinder neck portion is detachably coupled to the clamp band, there is a structural effect that the clamp band can be fastened to the neck portion of various sizes.

Above all, the valve shutter having a handwheel and a clamp band having the above advantages has a great advantage that, when mounted on a cylinder in the field, even if the diameter of the cylinder neck portion is different from the square shape of the main valve, the valve shutter can be immediately dealt with in the field.

Although the valve shutter of the present invention has been described with reference to the preferred embodiments and the accompanying drawings, it should be understood that the technical scope of the present invention is not limited thereto.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. There is no doubt that it is within.

100: valve shutter 111: handle
112: lever 113: air port
114: housing 115: main valve
115a: goal 116: cylinder
117: neck portion 118: cock
120: Handwheel 120a: Inner plate
121: Through hole 122: Square adjustment bar
123: fixing bolt 130: support
131: clamp band 131a: through hole
132: clamp handle 133: pressure screw
134: lifting and lowering stand 134a: fastening hole
135: fastening knob 140: insert ring
140a: coupling hole 141: fastening bolt

Claims (7)

And a housing 114 is provided under the handle 111. The housing 114 is provided with a gear 111 rotated by a spiral spring, And a neck portion 117 of the cylinder 116 is provided at a lower portion of the housing 114. The neck portion 117 of the cylinder 116 is connected to the neck portion 117 of the cylinder 116, And a support base (130) coupled to the housing (114) to adjust the height of the housing (114), the valve shutter
The handwheel 120 may include a plurality of main valves 115 accommodated in the inner diameter of the handwheel 120 so as to correspond to at least two or more quadrangular, pentagonal, hexagonal, Shaped configuration of the inner circumferential surface through the combination of the rectangular adjusting bar 122,
The support base 130 includes a clamp band 131 having a clamp handle 111 coupled to a neck portion 117 of the cylinder 116 and a clamp band 131 fixed perpendicularly to the clamp band 131, And an elevation fixing table 134 for fixing the housing 114 so that the housing 114 can be held in the handwheel 120 of the housing 114. The inner periphery of the clamp band 131 Two insert rings 140 corresponding to the diameter of the neck portion 117 of the cylinder 116 and fixed to the neck portion 117 when the clamp handle 111 is tightened are fixed to the surface,
A plurality of through holes 121 are formed in the inner side 120a of the handwheel 120 and the rectangular adjustment bars 122 are inserted into the through holes 121 by fixing bolts 123 passing through the through holes 121. [ Is fixed along the inner circumferential surface of the handwheel (120). delete The method according to claim 1,
In order to adjust and fix the rectangular adjustment bars 122 corresponding to the angles of the main valve 115 accommodated in the inner side plate 120a of the handwheel 120, Wherein a pattern of a square, a pentagon, a hexagon and an octagon is formed. The method of claim 3,
Wherein the through holes (121) are formed at positions of angles of quadrangular, pentagonal, hexagonal, and octagonal shapes formed on the inner side surface (120a) of the handwheel (120). 5. The method of claim 4,
Shaped adjustment bar 122 fixed at a position where the quadrangular, pentagonal, hexagonal, and octagonal shapes start when the position of the rectangular adjustment bars 122 is changed according to the angular shape of the main valve 115 accommodated therein, Is provided with a color so as to be a reference. 6. The method according to any one of claims 1 to 5,
Characterized in that the insert ring (140) has a diameter corresponding to the diameter of the neck portion (117) of each cylinder (116). The method according to claim 6,
Wherein the insert ring (140) is detachably fixed to the clamp band (131) by fastening bolts (141).

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