WO2019027276A1 - Device for automatically opening/closing gas barrel valve and method therefor - Google Patents

Abstract

The present invention relates to a device for automatically opening/closing a gas barrel valve such that a gas barrel loaded on a cabinet is automatically connected to a gas supply line, and a method therefor, wherein, when a gas leakage occurs in the process of separating an end cap from the gas barrel loaded on the cabinet, connecting the same to the gas supply line, and opening a valve handle so as to supply gas from inside the gas barrel to the gas supply line, the opened gas spraying nozzle can be automatically closed quickly not only when power is supplied normally, but also during a power outage. To this end, the present invention is characterized by comprising: a main plate (11) installed to be able to ascend/descend; a gas barrel connecting portion (20) installed on the lower portion of the main plate (11) such that, after the end cap (62) is separated from the gas barrel (60), a connector holder (28) is automatically screw-coupled to the gas spraying nozzle (64); a valve handle unit (50) installed on the main plate (11) to be able to rotate around a first shaft (55), thereby rotating a valve handle (61) clockwise or counterclockwise; and a valve handle opening/closing unit (40) installed on the upper portion of the main plate (11) so as to automatically open/close the valve (63) of the gas barrel (60).

Description

Automatic opening and closing device of gas cylinder valve and its method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic opening and closing apparatus for a gas cylinder valve for automatically connecting a gas cylinder loaded in a cabinet with a gas supply line and more particularly to an automatic opening and closing apparatus for a gas cylinder valve which separates an end cap from a gas cylinder loaded in a cabinet After connecting the gas supply line to the gas supply line, the valve handle is opened to supply the gas in the gas supply line to the gas supply line. When the gas is leaked, The present invention relates to an automatic opening and closing apparatus for a gas cylinder valve and a method thereof.

Generally, various kinds of gases are supplied and used depending on the application in the manufacturing process of the semiconductor. Most of these gases are sucked into the human body or exposed to the air, causing serious damage such as safety accidents and environmental pollution, .

For example, there are toxic gases such as arsenic hydride (AsH3: Arsine), hydrogen phosphide (PH3: Phosphine) or boron trifluoride (BF3: Boron Fluoride) These gases are very toxic and should be carefully controlled so that they do not leak out in the process of feeding to the production line, as they cause fatal consequences when workers inhale into the respiratory tract.

The gas used in such a semiconductor manufacturing process is very important to manage. These gases are supplied to the production line through the gas supply line by being filled in the gas tank with high pressure and installed in the cabinet. When the gas is exhausted by about 90% A new gas cylinder is used by the operator so as to prevent foreign matter remaining in the interior of the wafer from being supplied to the wafer processing step.

FIG. 1 is a perspective view illustrating a conventional gas cylinder. The conventional gas cylinder 200 for manufacturing a semiconductor device includes a container body 210, a container neck 230, a gas injection nozzle 250, an end cap 290, And a main valve (270).

The container body 210 has a cylindrical shape and is filled and stored with gas to be supplied to the semiconductor manufacturing process. The container body 230 is connected to the pipe body 210 by a predetermined length at one end of the container body 210, And serves as a gate for discharging the gas to the container body 210.

The gas injection nozzle 250 is in the shape of a pipe like the container neck 230 and is mounted on the container neck 230 connected to the container body 210 so that the container neck 230 can be arbitrarily connected to the outside gas Line (not shown).

The end cap 290 is in the form of a cap and is attached to the other end of the gas injection nozzle 250, that is, the portion where the gas injection nozzle 250 is connected to the external gas line to seal the gas injection nozzle 250 .

The valve handle 270 has a T shape and is mounted on a portion where the gas injection nozzle 250 and the container neck 230 are connected. When the gas is discharged to the container body 210, To control the gas flow.

The conventional gas cylinder 200 thus constructed is replaced by an operator every time the gas filled in the container body 210 is exhausted. At this time, the operator first separates the gas cylinder 200 from which the gas has been exhausted from the external gas line .

Thereafter, the operator prepares a new gas cylinder, separates the end cap attached to the gas injection nozzle of the new cylinder, connects the cylinder to the external gas line again, opens the valve handle closing the gas injection nozzle, The replacement of the lower gas cylinder is completed.

FIG. 2 is a perspective view schematically showing a gas supply device for a semiconductor device according to the prior art. In FIG. 2, SiH4, PH3, NF3, and SiH4, which are required in various equipments 8 in the FAB 7, The cabinet 1 is positioned so that a plurality of gas cylinders (not shown) filled with process gases such as CF4 gas are respectively accommodated in the cabinet 1 and a gas supply line A duct 4 is provided so as to guide the duct 3.

A number of regulator boxes 5 corresponding to the gas cylinders are provided on the other side of the duct 4 so as to supply the process gas introduced along the gas supply line 3, The same number of supply pipes 9 as the number of the equipment 8 are connected so as to be connected to each equipment 8 in the FAB 7.

Therefore, when the process gas is supplied to the respective gas cylinders seated in the cabinet 1, the respective process gases are introduced into the respective regulator boxes 5 along the gas supply line 3 passing through the inside of the duct 4 do.

Each of the process gases introduced into each regulator box 5 is then purified through a filter (not shown) and then supplied to each of the supply pipes (not shown) branched and connected in a corresponding number to the equipment 8 in the FAB 9 so that the wafer can be processed.

(Prior art document)

(Patent Document 0001) Korean Registered Patent No. 10-0242982 (registered on November 15, 1998)

(Patent Document 0002) Korean Registered Patent No. 10-0649112 (Registered on November 16, 2006)

(Patent Document 0003) Korean Registered Patent No. 10-0985575 (registered on September 29, 2010)

However, such conventional gas supply apparatus has various problems as follows.

First, since the gas cylinder in the cabinet was manually replaced every time the gas was exhausted, a human error occurred according to the skill of the operator.

Second, when gas is leaked due to unexpected accident such as an earthquake in the process of supplying gas through the gas supply line, means for automatically locking the valve of the gas cylinder is not provided, so that the leaked gas may explode or the leaked gas There was a fatal fatal poisoning.

Third, the end cap is manually opened and closed by an operator. If the end cap is separated, it is stored in a certain place. If the gas injection nozzle is to be closed due to the replacement of the gas cylinder, the end cap must be screwed again. The storage location of the cap was not constant, so that the end cap could not be fastened quickly when replacing the gas cylinder.

Even if the end cap is stored in a certain place, since the operator manually closes the gas injection nozzle, a human error may occur due to the number of operation mistakes, which poses a problem in safety accident.

SUMMARY OF THE INVENTION The present invention has been conceived to solve such a problem as described above, and it is an object of the present invention to automatically connect a gas cylinder aligned in a cabinet to a gas supply line, .

It is another object of the present invention to provide a method for preventing a gas leakage due to sudden vibration or an earthquake while a gas injection nozzle of a gas cylinder is opened or a safety accident caused by gas leakage by automatically locking a valve handle of a gas cylinder during a power failure So that it can be fundamentally resolved.

It is still another object of the present invention to provide a gas injection apparatus and a gas injection method thereof, in which, even if an earthquake or a power failure occurs in a process of opening a gas injection nozzle by rotating a valve handle by first winding a spring to lock a valve handle before opening the gas injection nozzle, This is so that you can lock it automatically.

Another object of the present invention is to manually rotate the handle valve holder for rotating the valve handle of the gas cylinder in an emergency so as to lock or open the gas injection nozzle of the gas cylinder.

Another object of the present invention is to securely store an end cap, which has been automatically separated from a gas cylinder located in a cabinet, in an end cap holder, and automatically detect the timing of replacing the gas cylinder with an end cap accommodated in the end cap holder So that it can be closed.

According to another aspect of the present invention, there is provided a method of manufacturing a gas injection apparatus, including: a main plate provided to be vertically movable up and down; and an end cap provided at a lower portion of the main plate, A valve handle unit installed on the main plate so as to be rotatable about the first axis and rotating the valve handle in a clockwise or counterclockwise direction; And a valve handle opening / closing unit for opening and closing the valve body.

According to another aspect of the present invention, there is provided a fuel cell system including: a main plate provided to be vertically movable up and down; a gas cylinder connector for disassembling the end cap from the gas cylinder provided below the main plate, A valve handle unit installed on the main plate so as to be rotatable around a first axis to rotate the valve handle clockwise or counterclockwise, a valve handle gear rotating about the first axis, And a valve handle opening / closing unit for rotating the valve handle gear clockwise or counterclockwise.

According to another aspect of the present invention, there is provided a method of manufacturing a gas injection apparatus, the method comprising the steps of: aligning a gas cylinder in a cabinet; separating the end cap from the gas cylinder; screwing the connector holder into the gas injection nozzle from which the end cap is removed A step of rotating the first shaft in a forward direction while restricting a reverse rotation of a first axis installed in the valve handle holder so as to idle, winding the spring on the first axis, and restricting the valve handle of the gas cylinder And automatically closing the valve when the gas cylinder is replaced or when a gas leakage is detected. The method for automatically opening and closing a gas cylinder valve according to the present invention includes the steps of:

The present invention has various advantages as compared to the prior art.

First, since it is possible to automate the replacement of the gas cylinder filled with toxic gas, it is possible to safely replace the gas cylinder, and also to save the expensive labor cost.

Second, in the process of supplying the gas from the gas cylinder to the production line, the valve of the gas cylinder, which was opened even if the gas leaks due to the vibration applied to the earthquake or the cabinet or the power failure occurs, is quickly and automatically locked. Thereby preventing an accident that the leaked gas explodes or the operator is poisoned by the gas in advance.

Third, since the valve handle gear for opening and closing the valve handle of the gas cylinder can be manually opened and closed even in the power failure state, the gas can be supplied more stably or shut off.

Fourthly, the end cap is automatically separated from the gas cylinder stored in the cabinet. When the gas cylinder is replaced, the end cap is automatically tightened to close the gas injection nozzle. Therefore, the gas cylinder can be automatically replaced. When the end cap is deteriorated and the gas is leaked, the end cap can be quickly fastened again to close the gas injection nozzle, thereby preventing an explosion accident caused by gas leakage or an accident that a worker is poisoned with gas .

1 is a perspective view showing a conventional gas cylinder;

2 is a perspective view schematically showing a gas supply device for a semiconductor device according to the prior art.

3 is a perspective view illustrating the present invention.

Fig. 4 is a perspective view showing the essential part of the present invention.

FIG. 5 is a perspective view showing a state in which the main plate is removed in the present invention. FIG.

FIG. 6 is a perspective view showing another direction of FIG.

7 is a perspective view showing the valve handle unit of the present invention in cross section;

FIGS. 8A and 8B are perspective views showing the gas-

Figure 9 is a perspective view of the end cap support means of the present invention

10 is a perspective view showing a main portion of the end cap supporting means of the present invention;

11 is a perspective view showing the end cap holder of the present invention in cross section;

12A and 12B are perspective views for explaining the operation state of the end cap supporting means of the present invention,

12A shows a state in which the end cap holder surrounds the end cap

12B is a state in which the end cap holder separates the end cap from the gas injection nozzle

13 is a perspective view showing one embodiment of the end cap supporting means of the present invention

Figure 14 is a perspective view of another embodiment of the end cap support means of the present invention,

15 is a sectional view for explaining the backlash preventing means of the present invention

16 is an exploded perspective view showing the second aligning means of the present invention

17 is a perspective view showing a state in which the gas cylinder is aligned due to the descent of the main plate;

18 is a plan view showing a state in which the valve handle gear of the valve handle unit of the present invention and the rack of the valve handle opening and closing unit are separated and the valve handle gear and the first latch are engaged

Fig. 19 is a plan view showing a state in which a rack of the valve handle opening / closing unit is engaged with the valve handle gear of the present invention

Fig. 20 is a plan view in which the rack of the present invention is rotated by one step to rotate the valve handle gear

21 is a plan view showing a state in which the first latch is detached from the valve handle gear of the present invention and the planetary gear is separated from the spring-loaded drive gear

22 is a flow chart for explaining the method of the present invention

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures are shown exaggerated or reduced in size for clarity and convenience in the figures, and any dimensions are merely illustrative and not restrictive. And to the same structure, element or component appearing in more than one drawing, the same reference numerals are used to denote similar features.

FIG. 3 is a perspective view illustrating the present invention. FIG. 4 is a perspective view illustrating the essential part of the present invention. FIG. 5 is a perspective view of the present invention in which a main plate is removed. A main plate 11 provided on the main plate 11 so as to be able to descend and an end cap 62 separated from the gas cylinder 60. The connector holder 28 is automatically screwed to the gas injection nozzle 64 A valve handle unit 50 rotatably mounted on the main plate 11 about the first axis 55 to rotate the valve handle 61 clockwise or counterclockwise, And a valve handle opening and closing unit 40 which is installed on the main plate 11 and automatically opens and closes the valve 63 of the gas cylinder 60.

First and second aligning means 120 and 130 for correcting the position of the gas cylinder 60 loaded in the cabinet (not shown) before the valve handle unit 50 is coupled to the gas cylinder 60, Respectively.

The first aligning means 120 automatically corrects the position when raising the gas cylinder 60 loaded in a lift (not shown) as shown in FIG. 9, A positioning rod 121 protruding from at least one side of the main plate 11 and disposed at a lower portion of the main plate 11 so that the positioning rod 121 is aligned when the valve handle unit 50 is engaged with the valve handle 61. [ And a positioning panel 122 for fitting the groove 122a and correcting the position of the gas cylinder 60. [

Even if the position of the gas cylinder 60 is shifted when the valve handle 61 of the gas cylinder 60 loaded on the lift is engaged with the valve handle unit 50, the positioning rod 121 protruding from the valve 63 is positioned The valve handle 61 is correctly engaged with the valve handle unit 50 because the position is corrected while automatically fitting into the alignment groove 122a formed in the panel 122. [

The first aligning means 120 is applicable when automatically raising the gas cylinder 60 loaded on the lift in a new type gas cylinder automatic opening and closing apparatus of 1200 x 590 (mm) in length and width of the cabinet.

However, in the case of a spherical type automatic gas opening / closing apparatus having a cabinet width × length of 800 × 590 (mm), it is impossible to install a lift for automatically lifting the gas cylinder 60, 2 aligning means 130. In this way,

The second aligning means 130 includes an aligner 131 fixed to the bottom surface of the main plate 11 and having two or more alignment pins 131a as shown in FIG. An alignment block 132 having a positioning hole 132a which is detachably fixed to the valve 63 of the valve 63 and in which the alignment pin 131a is inserted, And a fastening plate 133 for fastening with a member (not shown).

Therefore, when the main plate 11 is lowered with the gas cylinder 60 positioned in the cabinet, the operator can finely adjust the position of the gas cylinder 60 while visually identifying the position of the aligning pin 131a, The pins 131a are inserted into the positioning holes 132a of the alignment block 132 so that the positions of the gas cylinders 60 are aligned.

The gas cylinder connection portion 20 includes a second actuator 23 installed on the main plate 11 to move the second mounting plate 23 toward and away from the end cap 62 as shown in FIGS. 8A, 8B, and 9 A first actuator 22 installed on the second mounting plate 23 for moving the first mounting plate 21 in a direction orthogonal to the moving direction of the second mounting plate 23, An end cap holder 25 rotatably installed on a vertical plate 27 fixed to the mounting plate 21 and detachably holding the end cap 62; A connector holder 28 provided on the vertical plate 27 and screwed to the gas injection nozzle 64 of the gas container 60; The first and second gears 29a and 29b are fixed to the shafts of the holder 25 and the connector holder 28 so that the power of the third actuator 26 is transmitted. It is.

At this time, the rod 24a of the second actuator 24 is movably fitted in the bracket 13 fixed to the second mounting plate 23, and the rod 24a passing through the bracket 13 is provided with a coil spring Such that the elastic member 14 is not detached.

This is to make it possible to compensate the position of the second mounting plate 23 by an amount that is screwed without operating the second actuator 24 when the end cap holder 25 and the connector holder 28 are rotated to be.

It is further preferable that the end cap holder (25) further includes end cap supporting means (30).

This is for enabling the gas injection nozzle 64 of the gas cylinder 60 to be quickly closed when the gas cylinder 60 is replaced.

11 to 13, the end cap supporting means 30 includes a plurality of through holes 31 penetrating the end cap holder 25, and a plurality of through holes 31, A latch block 32 fixed to the end cap holder 50 by a fastening member 33 so as to be positioned on the end cap holder 50 and a latch block 32 which is rotatably installed around the pin 34, A latch 35 which is exposed to the inside of the cap holder 25 and supports the end cap 62 accommodated in the end cap holder 25 and a latch 35 which is provided between the latch block 32 and the latch 35, And an elastic member 36 for bending the end cap 35 to the inside of the end cap holder 25.

An inclined surface 35a and an engagement protrusion 35b are formed in the latch 35 exposed to the inside of the end cap holder 25 through the through hole 31 of the end cap holder 25, The end cap 62 is caused to pass through the latch 35 by the inclined surface 35a while the end cap 62 is accommodated and when the end cap 62 is accommodated, The projecting portion 65 of the cap 62 is engaged.

However, as shown in FIG. 14, the end cap support means 30 may include a plurality of through holes 31 penetrating the end cap holder 25, a housing 37 screwed to the through holes, A ball 37 which is accommodated in the housing 37 and is fitted in a leak test hole 62a of the end cap 62 accommodated in the end cap holder 25 to support the end cap 62, And a resilient member 39 such as a coil spring which is installed inside the housing 37 and biases the ball 38 into the end cap holder 25.

It will be appreciated that the endcap support means may be applied in various forms by those skilled in the art.

It is also possible to prevent the end cap 62 from being detached from the end cap holder 25 even if only one end cap supporting means 30 is formed in the end cap holder 25, It is more preferable that a plurality of end-cap supporting means 30 are provided at equal intervals.

7, the valve handle unit 50 includes a valve handle holder 52 which surrounds and rotates the valve handle 61 of the gas cylinder 60, and a plurality of the valve handle holders 52 A fourth resilient member 54 which biases the engaging pin 53 downward and a second resilient member 54 which engages with the upper portion of the valve handle holder 52, And a valve handle gear 51 that rotates in engagement with the rack 44.

The valve handle gear 51 serves to automatically open and close the valve 63 of the gas cylinder 60 by the valve handle opening and closing unit 40 provided on the main plate 11.

5, the valve handle opening / closing unit 40 installed on the main plate 11 and rotating the valve handle gear 51 rotates about the hinge shaft 41 on the upper surface of the main plate 11 A movable piece 45 provided on the upper surface of the tiltable member so as to be movable along the guide rod 43 and having a rack 44 fixed at one end thereof, A pair of rack driving actuators 46 provided on both sides of the rack 45 for moving the movable piece 45 forward and backward while being operated in alternation and a pair of rack driving actuators 46 disposed on one side of each of the rack actuating actuators 46, And an actuator 47 connected to the rack actuator 46 and the actuator 47 for the rotary member for rotating the rotary member 42. The actuator 47 for the rotary member When the driving is stopped, the pivotal member 22 is restored to move the rack 24 to the valve handle It is composed of 51 and the third elastic member 48 for spacing.

When the valve handle holder 52 opens the valve 63 of the gas cylinder 60 by the driving of the valve handle opening and closing unit 40 and the restoring force of the spring 56 wound by the first shaft 55 is released, (70) for preventing the valve handle holder (52) from rotating forward even when the valve handle holder (52) is actuated.

5 and 6, the first reverse rotation preventing means 70 includes a latch driving actuator 71 provided on the main plate 11, a latch driving actuator 71 mounted on the main plate 11, A first latch 73 which is rotatably mounted about a shaft 72 and which has one end meshed with the valve handle gear 51 and the other end connected to a rod of a latch drive actuator; And a first elastic member 74 for applying a restoring force to the first elastic member 74.

When the rack 44 of the valve handle opening and closing unit 40 rotates the valve handle gear 51 in the opposite direction to open the valve 63 of the gas cylinder 60, the first latch 73 is engaged with the valve handle gear 51 so that the valve handle holder 52 is prevented from rotating in the forward direction.

A first shaft 55 is rotatably supported by a bearing 57 at the center of the valve handle holder 52 and a spring drive gear 58 is fixed to the upper portion of the first shaft 55 15, the bent portion 56a of the spring 56 is fitted and fixed to the notch 55a formed at the lower end of the first shaft 55 and the other end of the spring 56 is fixed to the valve handle holder 52, And is fixed to a fixing pin 59 fixed to the inside of the housing.

Accordingly, the first axis 55 winds the spring 56 as the spring 58 rotates clockwise.

The main plate 11 located at one side of the valve handle gear 51 is provided with a manual winding unit 80 for amplifying the number of revolutions generated by the actuation of the spring winding actuator 81 to be transmitted to the manual winding drive gear 58, Respectively.

7, the first winding winding unit 80 includes a second shaft 82 rotatably installed on the main plate 11 and a second shaft 82 rotatably mounted on the second shaft 82, A one way clutch 83 such as a needle roller clutch bearing having a lever 83a at one end and a second hinge coupled to the lever 83a, An amplifier 84 fixed to the second shaft 82 to amplify the rotational speed of the second shaft 82 and a second shaft 82 fixed to the second shaft 82. The second shaft 82 rotates the second shaft 82, A planetary gear 85 which is engaged with the amplifier gear 84 and the spring-loaded drive gear 58 is rotatably installed at one end and a rod 86a of the actuator 86 for the planetary gear actuating is hinged And a link 87.

The spring winding actuator 81 is provided with a sensor 88 for sensing the movement of the piston so that the spring 56 is completely wound on the first shaft 55 so that the sensor 88 senses the movement of the piston The control unit (not shown) stops the actuation of the actuator 81 for winding the wind.

A second reverse rotation preventing means 90 for preventing the second shaft 82 from being reversely rotated when the one-way winding actuator 81 reduces the one-way clutch 83 to the initial position, Respectively.

7 showing the second anti-rotation means 90 according to an embodiment of the present invention, a second latch wheel 91 fixed to the second shaft 82 and a second latch wheel 91 fixed to the second latch wheel 91 A second latch 92 for preventing the second shaft 82 from rotating in reverse when the one-way clutch 83 is restored and a second elastic member 93 connected at one end to the second latch 92, Consists of.

When the valve handle holder 52 is separated from the valve handle 61, a backlash preventing means 110 is provided on the first shaft 55 so as to prevent backlash due to the loosened spring 56. [ .

This is because when the wound spring 56 is released and the valve handle 61 is closed and the valve handle holder 52 is separated from the valve handle 61, backlash occurs in which the first shaft 55 rotates excessively A repetitive impact is applied to the bent portion 56a of the spring 56 fitted in the notch 55a of the first shaft 55 to prevent the fixing portion of the spring 56 from breaking.

15, the backlash preventing means 110 includes a fixing block 112 fitted to the first shaft 55 and fixed to the upper plate 111 by a fastening member 116, A pressing member 113 fitted to the first shaft 55 so as to be positioned below the fixed block 112 and connected to the upper surface of the manual winding drive gear 58 and a pressing member 113 fixed to the fixed block 112, And a fifth elastic member 115 provided between the fixing block 112 and the pressing member 113 and biasing the pressing member 113 downward .

At this time, if the brake pad 117 is fixed to the bottom surface of the pressing member 113, the frictional force can be further increased, thereby further suppressing the occurrence of backlash.

The present invention further includes a manual opening / closing means 100 for opening and closing the gas injection nozzle 64 of the gas cylinder 60 manually in an emergency.

5, the manual opening / closing means 100 includes a valve handle manual rotary gear 101 rotatably mounted on the main plate 11 and engaged with the valve handle gear 51, A manual knob 102 installed to be exposed to the outside of the main plate 11 so as to rotate the valve handle manual rotary gear 101 and a manual knob 102 to rotate the manual knob 102, And power transmission means 103 for transmitting the power to the vehicle.

A pair of bevel gears are used in the present invention. The power transmission means 103 is a gear surface group that transmits power in a 90 占 direction.

The manual opening and closing means 100 is provided so that the rack 44 is separated from the valve handle gear 51 due to a sudden power failure and the power is turned off to the latch drive actuator 71, Even when the planetary gear 85 is separated from the manual drive gear 58 and the power is turned off to the planetary gear actuating actuator 86, the valve 63 of the gas cylinder 60 ) Can be manually opened and closed.

It is understood that all the actuators used in the present invention can be applied to a hydraulic or pneumatic cylinder, a step motor, a servo motor, or the like, if necessary.

The operation of the present invention will be described below.

First, an initial state in which the gas container 60 is not present in the cabinet (not shown) will be described.

The gas cylinder 60 is loaded on a lift (not shown) positioned so as to be able to move up and down in the cabinet, and the lift is preliminarily aligned with the aligning means (not shown) The main plate 11 and the gas cylinder 60 are provided with first aligning means 120 for accurately aligning the valve handle 61 in the valve handle holder 52 when the main plate 11 is lowered The positioning rod 121 fixed to the outside of the valve 63 is fitted into the alignment groove 122a of the positioning panel 122 fixed to the main plate 11 so that the position of the gas cylinder 60 is fine The valve handle holder 52 provided on the main plate 11 is accurately engaged with the valve handle 61 of the gas cylinder 60 as shown in FIG.

The above operation describes an automatic type gas cylinder automatic opening and closing apparatus for loading and raising the gas cylinder 60 into the lift.

However, when the gasket 60 is loaded in the spherical cabinet, the gasket 60 does not ascend and is stopped. Therefore, when the main plate 11 is lowered, the worker moves the second aligning means 130 While checking the pin 131a, the positioning hole 132a of the alignment block 132 provided in the valve 63 of the gas cylinder 60 is aligned with the positioning hole 132a of the gas cylinder 60 so that the alignment pin 131a is fitted as shown in FIG. The valve handle holder 52 provided on the main plate 11 is accurately engaged with the valve handle 61 of the gas container 60 (S100).

At this time, in the gas cylinder automatic opening and closing apparatus, the gas cylinder 60 is automatically lifted and lowered by the lift, while the gas cylinder 60 to be loaded into the spherical cabinet is stopped in the valve handle holder 52 It is understood that the gap between the gas cylinder 60 and the main plate 11 should be designed to be narrow as the movement section of the lift because the gas cylinder 60 is coupled to the valve handle 61 of the gas cylinder 60. [

When the valve handle 61 is engaged with the valve handle holder 52 by the above-described operation, the latching pin 53 is moved in the recessed portion 61a of the valve handle 61 The engagement pin 53 is inserted into the recessed portion 61a of the valve handle 61. If the engagement pin 53 is positioned so as to be displaced from the recessed portion 61a of the valve handle 61, 61 while the fourth elastic member 54 is compressed while the recessed portion 61a of the valve handle 61 is aligned with the engaging pin 53 by the rotation of the valve handle holder 52, The pin 53 is lowered by the restoring force of the fourth elastic member 54 and is inserted into the recessed portion 61a so that the position of the valve handle holder 52 is corrected and the coupling of these is completed.

The second and third actuators 24 and 26 of the gas cylinder connection portion 20 are connected to the valve handle holder 61 when the main plate 11 is lowered and the valve handle holder 52 mounted on the main plate 11 is assembled to the valve handle 61 The end cap holder 25 is rotated when the second mounting plate 23 is moved to the gas cylinder 60 side because the end cap holder 25 and the end cap 62 are hexagonal, Even if the positions of the holder 25 and the end cap 62 do not coincide with each other, as the end cap holder 25 is in contact with the end cap 62 and continues to rotate until the end cap holders 25 coincide with each other, So that the end cap 62 is correctly inserted into the cap holder 25.

Thus, the end cap 62, which has closed the inlet of the gas injection nozzle 64, is accommodated in the end cap holder 25.

11, which is an embodiment of the present invention, when the end cap 62 is accommodated in the end cap holder 25, a plurality of latches 35 provided on the end cap holder 25 are inserted into the end caps 62 The end portion of the end cap 62 is connected to the end cap 62. The end portion of the end cap 62 is connected to the end cap 62, The latch 35 is restored to its original state by the restoring force of the elastic member 36 and the protrusion 65 of the end cap 62 The latch 35b of the latch 35 is hooked on the end cap 62 so that the end cap 62 is stably housed as shown in FIG. 12A.

14 showing another embodiment, the ball 38 is exposed to the lower portion of the housing 37 screwed to the end cap holder 25 so that the ball 38 is elastically deformed by the end cap 62 39 and the ball 38 reaches the leak test hole 62a formed in the end cap 62. When the ball 38 is returned to the initial state by the restoring force of the elastic member 39, The end cap 62 is stably housed as shown in FIG. 14.

12A, when the end cap 62 is accommodated in the end cap holder 25, the third actuator 26 for rotating the end cap holder 25 is driven to rotate the end cap holder 25 The end cap 62 is disengaged from the gas injection nozzle 64. At this time, as shown in FIG. 8B, the second mounting plate 23 provided with the third actuator 31 is mounted on one side The rod 24a of the second actuator 24 is fitted to the fixed bracket 13 and the elastic member 14 is kept compressed in the rod 24a so that the end cap holder 25 is pressed against the elastic member The second mounting plate 23 is moved to the left in the figure by the distance that the end cap 62 is released by the restoring force of the end cap 62 and the end cap 62 is housed in the end cap holder 25 as shown in FIG. Is separated from the gas injection nozzle 64 (S200).

At this time, the first and second gears 19a and 19b are engaged with the shaft of the connector holder 28 and the end cap holder 25 so that the connector holder 28 idles clockwise.

After the end cap 62 is removed from the gas injection nozzle 64, the first mounting plate 21 is moved by the driving of the first actuator 22 to move the center of the connector holder 28 and the gas injection nozzle 64 The second actuator 24 is driven to advance the second mounting plate 23 toward the gas cylinder 60 so that the connector holder 28 abuts against the gas injection nozzle 64. [

In this state, when the third actuator 26 is driven in the reverse direction to rotate the end cap holder 25 in the counterclockwise direction, the connector holder 28 rotates in the clockwise direction, so that the connector holder 28 is connected to the gas injection nozzle 64 (S300).

When the end cap 62 is separated from the gas cylinder 60 and the connector holder 28 is coupled to the gas injection nozzle 64 as described above, the actuator 47 for the rotary member is turned off as shown in FIG. 18 The rack 44 is separated from the valve handle gear 51 and the latch drive actuator 71 is turned on so that the first latch 73 is meshed with the valve handle gear 51. [

The planetary gear actuating actuator 86 is also turned on so that the planetary gear 85 is meshed with the spring drive gear 58 and the second latch 92 is engaged with the second latch wheel 91 Respectively.

The valve handle holder 52 of the valve handle unit 50 is assembled to the valve handle 61 of the gas cylinder 60 and the connector holder 28 is screwed to the gas injection nozzle 64 The spring 63 must be opened by the rotation of the valve handle 61 so that the spring 56 is wound around the first axis 55 using the spring winding unit 80 before the gas is supplied to the gas line.

This is because the valve handle (61) of the gas cylinder (60) is rotated to supply the gas to the gas line, so that even if a power failure occurs in opening the valve (63) 61 to automatically shut off the supply of the gas.

5 and 7, the spring-leaf winding actuator 81 is turned on to wind the lever 56 of the one-way clutch 83 to wind the spring 56 located inside the valve handle holder 52 When the second shaft 82 rotates in the clockwise direction, the number of revolutions is amplified by the amplifier 84 to rotate the planetary gear 85 in the counterclockwise direction. Thus, And the first shaft 55 rotates the spring 56 while rotating the second spring 58 clockwise.

At this time, even if the second latch 92 is engaged with the second latch wheel 91 provided on the second shaft 82, when the second shaft 82 rotates in the clockwise direction, The second shaft 82 is rotated while the member 93 is pulled over the screw thread of the second latch wheel 91. [

The first latch 73 is engaged with the valve handle gear 51 located at the upper portion of the valve handle holder 52 in the above operation so that the valve handle holder 52 does not move. Is wound by the first shaft 55. In this case,

As described above, when the spring-loaded actuator 81 pulls the rod to rotate the first shaft 55, the spring-loaded actuator 81 pushes the rod again. At this time, the one- The second latch 92 is engaged with the second latch wheel 91 so that the second shaft 82 is not rotated (S400).

The operation of winding the spring 56 by the first shaft 55 by the operation of the spring winding actuator 81 is performed as many times as the number of times set in the control unit (not shown) The drive is set to the control unit such that the first manual shaft 56 is stopped by the first shaft 55 without being fully wound.

This is because even when the rack 44 later rotates the valve handle gear 51 to open the valve 63 of the gas cylinder 60, 59) are installed, and the spring 56 is wound.

When the spring 56 having one end fixed to the fixing pin 59 and the other end fixed to the first shaft 55 is wound by the operation of the winding unit 80, the valve handle opening / closing unit 40 is used to open the gas cylinder 60 The valve 63 should be opened.

The actuator 47 for the rotary member is simultaneously driven to push the rotary member 42 toward the valve handle gear 51 to open the valve 63 of the gas cylinder 60, The rack 44 fixed to one end of the movable piece 45 as shown in FIG. 19 is pivotally moved by the valve handle 40. The movable member 45 is pivoted about the hinge shaft 41 and rotated while tensioning the third elastic member 48. Therefore, And is engaged with the gear 51.

When the latch driving actuator 71 for driving the first reverse rotation preventing means 70 is turned off with the rack 44 engaged with the valve handle gear 51 as described above, the first elastic member 74 The first latch 73 rotates in the counterclockwise direction about the shaft 72 and the engagement with the valve handle gear 51 is released.

Thereafter, when the actuator 46 for rack driving pushes the movable piece 45, the movable piece 45 moves along the guide rod 43 to the side of the actuator 46 for driving the opposite rack as shown in Fig. 20, The gear 51 is rotated in the counterclockwise direction so that the valve handle holder 52 is rotated by the stroke of the rack 44 and the valve handle 51 is opened.

After the movable piece 45 is moved to rotate the valve handle holder 52 by the above-described operation, the latch drive actuator 71 which has been turned off is turned on to stretch the first elastic member 74, One latch 73 is pushed to engage the first latch 73 with the valve handle gear 51 and then the actuator 47 for the rotary member is turned off so that the pivoting member 42 is rotated by the third elastic member The rack 44 fixed to the movable piece 45 and the valve handle gear 51 are disengaged from each other by the restoring force of the hinge shaft 41. As a result,

When the rack 44 is separated from the valve handle gear 51, the movable piece 45 is returned to the initial position by driving the rack-driving actuator 46 positioned on the opposite side, so that the valve handle 61 The above-described operation is repeatedly performed until the valve 63 is completely opened (S500).

When the valve 63 of the gas cylinder 60 is completely opened by the above operation, the sensor 88 provided on the actuator 81 for winding the wind-wound winding unit 80 can not detect the piston, It is more preferable that the second shaft 81 is driven again to completely wind the spring 56 by the first shaft 55.

The operation of the actuator 47 for the rotary member is stopped and the rotary member 42 is rotated about the hinge axis 41 by the restoring force of the third elastic member 48 so that the rack 44 and the valve handle gear 51 remain separated from each other.

The first latch 73 is meshed with the valve handle gear 51 and the second latch 92 is meshed with the second latch wheel 91 so that the spring 56 wound on the first axis 55 is not loosened. Respectively.

The valve 63 is opened from the gas cylinder 60 so that the gas is stably supplied to each process through the gas injection nozzle 64 via the connector holder 28 connected to the gas piping 12 and the gas line.

However, if a natural disaster such as an earthquake or leakage of gas to the sensor unit 140 is detected during the process of opening the valve 63 from the gas container 60 or opening the valve 63, The valve handle 61 of the gas cylinder 60 must be quickly closed to stop the supply of the gas.

Accordingly, when the sensor unit 140 senses the leakage of the gas, the control unit causes the rod of the actuator 71 to be pulled by the control unit, so that the first latch 73 rotates about the shaft 72, The power supply to the actuator 71 for driving the latch is interrupted during a power failure so that the first latch 73 is engaged with the shaft 72 by the restoring force of the first elastic member 74, So that the engagement with the valve handle gear 51 is released.

When the first latch 73 is released from engagement with the valve handle gear 51 in the above-described operation, the planetary gear 85 is engaged with the spring-loaded drive gear 58, The spring 56 wound by the first shaft 55 is released at a high speed and the valve handle holder 52 is rotated clockwise to lock the valve 63 of the gas cylinder 60 (S600).

When the spring 56 is completely unfastened, the control unit operates the valve handle opening / closing unit 40 to engage the rack 44 with the valve handle gear 51, It is more preferable that the valve handle holder 52 is rotated in the clockwise direction by an operation opposite to that when the valve 63 is opened so as to completely lock the valve handle 61 of the gas cylinder 60 (S700).

The valve handle 61 is automatically locked by the above operation and then the connector holder 28 is removed from the gas injection nozzle 64 by the gas cylinder connection portion 20 and the end cap 62 is screwed to the main plate The first shaft 55 tries to rotate in a counterclockwise direction by the loosened spring 56 when the valve handle holder 52 is released from the valve handle 61 due to the rise of the first shaft 55. In the present invention, The backlash preventing means 110 is provided on the first shaft 55 so that the first shaft 55 is gradually rotated until the loosened loose spring 56 is completely loosened.

15, the fixed block 112 is fixed to the upper plate 111, and the guide pin 114 is inserted into the fixed block 112 so that the pressing member 113 can move up and down A plurality of fifth elastic members 115 are provided between the fixed block 112 and the pressing member 113 so as to press the manual winding drive gear 58 so that the pressing member 113 presses the manual winding drive gear 58 The first shaft 55 is gradually rotated.

At this time, if the brake pad 117 is fixed to the bottom surface of the pressing member 113, the frictional force is increased, so that the first shaft 55 is rotated more slowly.

In the present invention, the valve 63 of the gas cylinder 60 is automatically opened by the valve handle opening / closing unit 40 and the spring winding unit 80, and the valve handle 61 of the gas cylinder 60 The present invention is further provided with a manual opening / closing means 100 that can open and close the valve 63 of the gas cylinder 60 so that the valve handle 61 can be manually rotated.

That is, since the actuators 46, 47, 71, 81, and 86 are not operated due to the power failure, the first latch 73 is engaged with the valve handle gear 51 And the manual knob 102 exposed to the outside of the main plate 11 is rotated so that the power is transmitted through the pair of bevel gears, It is understood that the valve handle manual rotation gear 101 rotates the valve handle gear 51 to lock the valve 63 of the gas cylinder 60 because it is transmitted to the manual rotation gear 101 at step S800.

However, when the gas is normally supplied to the gas line and the gas cylinder (60) is to be replaced, the used gas cylinder must be replaced with a new gas cylinder.

In order to replace the gas cylinder 60, the rack driving actuator 46 and the actuator 47 for the rotary member are alternately operated to move the rack 44 of the valve handle opening and closing unit 40 in the direction opposite to the above- The valve handle holder 52 is rotated in the clockwise direction, so that the valve handle 61 locks the valve 63.

When the valve handle 61 locks the valve 63, the first, second, and third actuators 22, 24, 26 operate in the reverse direction as described above, The end cap 62 housed in the end cap holder 25 closes the gas injection nozzle 64 and the gas cylinder can be replaced.

That is, when the connector holder 28 is rotated counterclockwise by the reverse drive of the third actuator 26 to be separated from the gas injection nozzle 64, the second mounting plate 23 provided with the third actuator 26, 8b due to the restoring force of the elastic member 14 that has been compressed and fitted to the rod 24a of the second actuator 24 as the connector holder 28 is loosened, The second actuator 24 is driven and the second mounting plate 23 is retracted from the gas cylinder 60 side.

After the connector holder 28 is separated from the gas injection nozzle 64 in the above-described operation, the end cap 62 accommodated in the end cap holder 25 is screwed to the gas injection nozzle 64 The first actuator 22 is driven to move the first mounting plate 21 toward the gas injection nozzle 64 so that the end cap holder 25 and the gas injection nozzle 63 are positioned on the same axis.

The third actuator 26 rotates the end cap holder 25 clockwise to rotate the end cap 62 housed in the end cap holder 25 Since the gas injection nozzle 64 is screwed to the gas injection nozzle 64, the gas cylinder 60 can be replaced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention may be embodied with various changes and modifications without departing from the scope of the invention. will be.

It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive, the scope of the invention being described in the foregoing specification is defined by the appended claims, Ranges and equivalents thereof are to be construed as being included within the scope of the present invention.

[Description of Symbols]

10: elevator 11: main plate

20: gas cylinder connection parts 22, 24, 26: first, second and third actuators

25: end cap holder 28: connector holder

30: end cap supporting means 32: latch block

35: latch 37: housing

38: Ball 40: Valve handle opening / closing unit

42: tiltable member 44: rack

45: movable piece 46: rack driving actuator

47: Actuator for the rotary member 50: Valve handle unit

51: valve handle gear 52: valve handle holder

55: first axis 56: spring wound

58: manual winding drive gear 60: gas cylinder

61: valve handle 63: valve

64: gas injection nozzle 65:

70: first reverse rotation preventing means 71: latch driving actuator

72: shaft 73: first latch

80: Winding-up unit 81: Winding-up actuator

82: Second shaft 83: One-way clutch

84: amplifier 85: planetary gear

86: Actuator for driving planetary gears 87: Link

90: second reverse rotation preventing means 91: second latch wheel

92: second latch 100: manual opening / closing means

101: Valve handle manual rotation gear 102: Manual knob

110: backlash preventing means 112:

113: pressing member 114: guide pin

117: brake pad 120: first aligning means

121: Positioning rod 122: Positioning panel

122a: aligning groove 130: second aligning means

131: Aligner 131a: Alignment pin

132: alignment block 132a: positioning ball

140:

Claims (35)

1. A main plate 11 provided at a lower portion of the main plate 11 to separate the end cap 62 from the gas cylinder 60 and then to attach the connector holder 28 to the gas injection nozzle 64, And a valve handle (61) rotatably mounted on the main plate (11) so as to be rotatable about the first axis (55), for rotating clockwise or counterclockwise the valve handle (61) And a valve handle opening / closing unit (40) installed on the main plate (11) for automatically opening and closing the valve (63) of the gas cylinder (60).
2. A main plate 11 provided at a lower portion of the main plate 11 to separate the end cap 62 from the gas cylinder 60 and then to attach the connector holder 28 to the gas injection nozzle 64, And a valve handle (61) rotatably mounted on the main plate (11) so as to be rotatable about the first axis (55), for rotating clockwise or counterclockwise the valve handle (61) A valve handle gear 51 provided on one side of the valve handle gear 51 for rotating the valve handle gear 51 clockwise or counterclockwise; And a valve handle opening / closing unit (40) that rotates the valve handle (40).
3. The method according to claim 1 or 2,

   The valve handle unit (50)

   A valve handle holder 52 which surrounds and rotates the valve handle 61 of the gas cylinder 60 and a plurality of valve handle holders 52 which are provided in the valve handle holder 52 and which are engaged with the recessed portion 61a of the valve handle 61 A fourth elastic member 54 which pivots the latching pin 53 downward and a second elastic member 54 which is located above the valve handle holder 52 and rotates in engagement with the rack 44, (51). ≪ / RTI >
4. The method according to claim 1 or 2,

   The valve handle opening / closing unit (40)

   A tiltable member 42 rotatably mounted on the main plate 11 around a hinge axis 41,

   An actuator 47 provided on the main plate 11 at one side of the pivoting member 42 for rotating the pivoting member 42,

   A third elastic member 48 provided between the pivoting member 42 and the actuator 47 for the pivoting member,

   A pair of rack actuating actuators 46 fixed to the pivoting member 42,

   A movable piece 45 which is guided by the guide rod 43 in accordance with the driving of the rack-driving actuator 46 and moves back and forth,

   And a rack (44) fixed to the movable piece (45) and engaged with the valve handle gear (51).
5. The method according to claim 1 or 2,

   Further comprising a sensor (140) for sensing gas leaking from the gas cylinder (60) to the main plate (11).
6. The method according to claim 1 or 2,

   The gas-tank connection part (20)

   A second actuator 24 installed on the main plate 11 and moving the second mounting plate 23 toward and away from the end cap 62,

   A first actuator 22 installed on the second mounting plate 23 for moving the first mounting plate 21 in a direction orthogonal to the moving direction of the second mounting plate 23,

   An end cap holder 25 rotatably installed on the vertical plate 27 fixed to the first mounting plate 21 and detachably holding the end cap 62,

   A third actuator 26 for separating or fastening the end cap 62 by rotating the end cap holder 25,

   A connector halter 28 provided on the vertical plate 27 and screwed to the gas injection nozzle 64 of the gas cylinder 60,

   And first and second gears (29a) and (29b) fixed to the axes of the end cap holder (25) and the connector holder (28) so as to be mutually engaged so as to transmit the power of the third actuator (26) Automatic valve opening / closing device.
7. The method of claim 6,

   Wherein the end cap holder (25) is further provided with an end cap supporting means (30).
8. The method of claim 7,

   The end cap support means (30)

   A plurality of through holes 31 penetrating the end cap holder 25,

   A latch block 32 fixed to the end cap holder 25 by a fastening member 33 so as to be located outside the respective through holes,

   An end cap 62 which is rotatably mounted on the latch block 32 around the pin 34 and is exposed to the inside of the end cap holder 25 through the through hole 31 and accommodated in the end cap holder 25 A latch 35 for supporting the latch 35,

   And an elastic member (36) provided between the latch block (32) and the latch (35) for biasing the latch (35) into the end cap holder (25).
9. The method of claim 8,

   An inclined surface 35a and an engagement protrusion 35b are formed in the latch 35 exposed through the through-hole 31 of the end cap holder 25 to expose the end cap holder 25, The end cap 62 is allowed to pass through the latch 35 by the inclined surface 35a when the end cap 62 is housed in the end cap 62. When the end cap 62 is accommodated, (65) of the gas cylinder valve (62) is engaged.
10. The method of claim 7,

    The end cap support means (30)

    A plurality of through holes 31 penetrating the end cap holder 25,

    A housing (37) screwed to each of the through holes,

    A ball 38 which is accommodated in the housing 37 and is fitted in a leak test hole 62a of the end cap 62 accommodated in the end cap holder 25 to support the end cap 62 )and,

    And an elastic member (39) such as a coil spring which is installed inside the housing (37) and which bores the ball (38) to the inside of the end cap holder (25).
11. The method according to any one of claims 7, 8, and 10,

    Wherein a plurality of end cap supporting means (30) are provided at equal intervals in the end cap holder (25).
12. The method according to claim 1 or 2,

    A winding winding unit 80 for winding the first winding shaft 56 by the rotation of the first shaft 55,

    A driving means for driving the winding winding unit 80,

    A first reverse rotation preventing means 70 for preventing the valve handle holder 52 from rotating forward due to the restoring force of the spring 56 when the valve 63 of the gas cylinder 60 is opened, )and,

    Further comprising a second reverse rotation preventing means (90) for preventing the second shaft (82) from being reversely rotated when the spring means (56) is wound by driving the driving means.
13. The method of claim 12,

    The wound winding unit (80)

    A first shaft 55 provided at the center of the valve handle unit 50,

    A fixing pin 59 disposed inside the valve handle unit 50,

    And the other end is fixed to the first shaft 55 to be wound with the first spring 55 as the first shaft 55 rotates in the direction in which the valve handle 61 is opened, And the gas cylinder valve automatic opening / closing device.
14. The method of claim 12,

    The driving means includes:

    A spring-loaded drive gear 58 fixed to the first shaft 55 so as to be positioned above the valve handle gear 51,

    A second shaft 82 rotatably installed on the main plate 11,

    An amplifier 84 fixed to the second shaft 82 to amplify the number of revolutions of the second shaft 82,

    A link 87 fixed to the second shaft 82,

    A planetary gear 85 meshing with the amplifier gear 84 at one end of the link 87 to engage or disengage the manual winding drive gear 58,

    A planetary gear actuating actuator 86 for hinging a rod 86a to the other end of the link 87 to rotate the link 87,

    And an actuator (81) for winding the wire wound on the first shaft (55) so as to wind the spring (56) by rotating the second shaft (82).
15. The method according to claim 1 or 2,

    Wherein the main plate (11) and the valve (63) are further provided with first aligning means (120).
16. 16. The method of claim 15,

    The first aligning means (120)

    A positioning rod 121 having at least one protruding outer side of the valve 63,

    The positioning rod 121 is fitted in the alignment groove 122a when the valve handle unit 50 is coupled to the valve handle 61 and the position of the gas cylinder 60 is corrected And a positioning panel (122) for positioning the gas cylinder valve.
17. The method of claim 12,

    The first reverse rotation preventing means (70)

    A latch drive actuator 71 provided on the main plate 11,

    A first latch 73 connected to the main plate 11 so as to be rotatable around a shaft 72 and having one end engaged with the valve handle gear 51 and the other end connected to the rod of the actuator 71 for driving the latch, Wow,

    And a first elastic member (74) for applying a restoring force to the first latch (73).
18. 15. The method of claim 14,

    A sensor 88 for sensing the movement of the piston is installed in the spring winding actuator 81 so that the spring 88 is completely wound and the sensor 88 can not detect the piston movement of the spring winding actuator 81 And the control unit stops the drive of the spring-leaf winding actuator (81).
19. The method of claim 12,

    The second reverse rotation preventing means (90)

    A second latch wheel 91 fixed to the second shaft 82,

    A second latch 92 engaged with the second latch wheel 91 to prevent the second shaft 82 from being reversely rotated when the one-way clutch 83 is restored,

    And a second elastic member (93) connected at one end to the second latch (92).
20. The method according to claim 1 or 2,

    Further comprising a manual opening / closing means (100) for manually opening and closing the valve handle (61) during a power failure.
21. The method of claim 20,

    The manual opening / closing means (100)

    A valve handle manual rotation gear 101 rotatably installed on the main plate 11 and engaged with the valve handle gear 51,

    A manual knob 102 installed to be exposed to the outside of the main plate 11 to rotate the valve handle manual rotary gear 101,

    And a power transmitting means (103) for transmitting the rotation of the manual knob (102) to the valve handle manual rotary gear (101).
22. 23. The method of claim 21,

    Wherein the power transmission means (103) is a pair of bevel gears.
23. The method of claim 12,

    The backlash preventing means 110 is further provided on the first shaft 55 to prevent backlash due to the loosened spring 56 when the valve handle holder 52 is separated from the valve handle 61 Automatic opening / closing device of gas cylinder valve.
24. 24. The method of claim 23,

    The backlash preventing means (110)

    A fixing block 112 fitted to the first shaft 55 and fixed to the upper plate 111 by a fastening member 116,

    A pressing member 113 fitted to the first shaft 55 so as to be positioned below the fixed block 112 and connected to the upper surface of the manual winding drive gear 58,

    A guide pin 114 for allowing the pressing member 113 to move up and down in the fixed block 112,

    And a fifth elastic member (115) provided between the fixed block (112) and the pressing member (113) and biasing the pressing member (113) downward.
25. 27. The method of claim 24,

    And a brake pad (117) is fixed to the bottom surface of the pressing member (113).
26. The method of claim 6,

    Wherein the first, second, and third actuators (22, 24, 26) are any one of a hydraulic or pneumatic cylinder, a step motor, and a servomotor.
27. The method according to claim 1 or 2,

    Characterized in that the main plate (11) and the valve (63) of the gas cylinder (60) are further provided with a second aligning means (130).
28. 28. The method of claim 27,

    The second aligning means (130)

    An aligner 131 fixed to the bottom surface of the main plate 11 and having two or more alignment pins 131a,

    An alignment block 132 which is detachably fixed to the valve 63 of the gas cylinder 60 and in which a positioning hole 132a through which the alignment pin 131a is inserted is formed,

    And a fastening plate (133) for fastening the alignment block (132) to the valve (63) with a fastening member.
29. (62) to the gas injection nozzle (64) from which the end cap (62) has been removed, the method comprising the steps of: loading the gas cylinder (60) The first shaft 55 is rotated in the normal direction while the first shaft 55 installed to idle the valve handle holder 52 is restrained from rotating reversely, Closing the valve handle (61) of the gas cylinder (60) while restricting the normal rotation of the valve handle holder (52) to open the valve (63) And automatically closing the valve (63) when a replacement time of the valve (60) or a gas leak is detected.
30. 29. The method of claim 29,

    Wherein the spring (56) is wound by the first shaft (55) before opening the valve (63) of the gas cylinder (60).
31. 29. The method of claim 29,

    When gas is supplied from the gas pipe 60 through the gas pipe 12, if the sensor unit 140 does not sense gas leakage, the gas is continuously supplied. If the sensor unit 140 detects gas leakage And the valve handle (61) is forcibly locked by the restoring force of the spring (56) by releasing the inhibition of the valve handle gear (51).
32. 29. The method of claim 29,

    The valve handle 61 is forcibly locked by the restoring force of the spring 56 by releasing the restraint of the valve handle gear 51 when the gas injection nozzle 64 of the gas cylinder 60 is open Features automatic opening and closing of gas cylinder valve.
33. 32. The method of claim 31,

    The spring lever 56 is released and the valve handle opening / closing unit 40 further locks the valve handle 61 with an electric force when the valve handle holder 52 has closed the valve handle 61 Automatic opening and closing method of gas cylinder valve.
34. 29. The method of claim 29,

    The valve handle gear 52 and the manual winding drive gear 58 are released to manually rotate the valve handle gear 51 in a state in which the valve handle holder 52 and the manual winding drive gear 58 are free to rotate, (63) of the gas cylinder valve (60) is locked.
35. 32. The method of claim 31,

    Wherein the planetary gears (85) are separated from the spring-loaded drive gear (58) before the valve handle holder (52) is disengaged from the valve handle (61).

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