KR100985575B1 - Shutter for valve of high pressure bombe - Google Patents

Abstract

According to the present invention, when there is a leak of gas in a gas consumption area such as a clean room, to which the high pressure gas is supplied, when the temperature is abnormally soared in the gas consumption area, it is necessary to stop the supply of gas, or an earthquake occurs. When the risk of gas leakage is high, it is detected early and automatically shuts off the high-pressure gas cylinder shut-off valve, and the operator can actually check the shut-off valve of the shut-off valve. It relates to an on-off valve auto circuit breaker of a high-pressure gas cylinder that prevents a safety accident such as gas explosion or gas poisoning caused by mistake.

Opening / closing valve of the high pressure gas cylinder of the present invention, the auto circuit breaker mounts the opening / closing valve 1a of the high pressure gas cylinder 1 therein and displays the "mounting position" mark on the outer cylinder surface and the number indicating the locking degree of the opening / closing valve 1a. The first gear train connected to the indicator 10 and the output shaft 23 connected to the indicator 10, the spring 30 connected to the input shaft 21 of the first gear train, and the input shaft of the first gear train. A handle 40 for rotating 21, a second gear train engaged with the first gear train, and a locking pin 60 coupled to the locking pin shaft 55 of the second gear train, and the locking pin. Pneumatic cylinder 70 to operate the rod 71 to block the rotation of the 60, the limited plate 80 in conjunction with the rotation of the output shaft 23 of the first gear train, the locked state of the limited plate 80 Opening of the lock stopper 81 and the limited plate 80 to limit rotation of the furnace Open stopper 82 for limiting the rotation to the state, and characterized in that it comprises a proximity sensor 83 is installed to detect the locked state of the limited plate (80).

High pressure gas cylinder, on / off valve, breaker, proximity sensor, auxiliary indicator

Description

Shutter for valve of high pressure bombe

The present invention mainly relates to a high pressure gas cylinder for storing high pressure gas such as toxic gas and explosive gas supplied to semiconductor production equipment, and more specifically, leakage of gas in a gas consumption area such as a clean room to which the high pressure gas is supplied. If there is a need to stop the supply of gas because the temperature rises abnormally in the gas consumption area, or if there is a high risk of gas leakage due to an earthquake, it detects it early and automatically turns on / off the valve of the high pressure gas cylinder. High pressure that prevents safety accidents such as gas explosion or gas poisoning caused by mistaken to be blocked even though the on-off valve is not blocked due to malfunction by allowing the operator to actually check the shut-off state of the on-off valve. Opening and closing valves for gas cylinders.

In general, since a toxic gas, an explosive gas, or the like must be supplied to equipment in order to produce a semiconductor in a semiconductor production plant, a high-pressure gas cylinder (1) storing these high-pressure gases by type is installed at a remote location as shown in FIG. The high pressure gas is supplied to the gas line 2 to the required gas consumption region 3.

However, when a gas leak occurs during the semiconductor manufacturing process in a gas consumption region 3, such as a clean room, to which a high pressure gas is supplied, it is necessary to stop the supply of gas because the temperature soared abnormally in the gas consumption region 3. If there is a high risk of gas leakage due to an earthquake, it is detected by a toxic gas sensor 4a, a combustible gas sensor 4b, a temperature sensor 4c, and an earthquake sensor (not shown). Is sent to the toxic gas alarm device 5a, the combustible gas alarm device 5b, the temperature alarm device 5c, the earthquake alarm device 5d, and an alarm is sent to the breaker controller 6 at the same time. The breaker control unit 6 blocks the supply of gas from the high pressure gas cylinder 1 by controlling the solenoid valve 7 to block the compressed air supplied to the breaker 8.

The breaker 8 has a pneumatic cylinder configured therein to automatically turn the handle 1b of the on-off valve 1a of the high-pressure gas cylinder 1 to lock the shut-off valve 1a when the compressed air is shut off. It is.

By blocking the open / close valve 1a of the high pressure gas cylinder in this way, safety accidents such as gas explosion and gas poisoning in the gas consumption region 3 and the like are prevented in advance.

However, the on-off valve breaker 8 of the conventional high-pressure gas cylinder is to turn off the gas supply from the high-pressure gas cylinder 1 by automatically turning the handle 1b of the on-off valve 1a in a gas leakage situation as described above. Indeed, the operator could not confirm whether the shut-off valve 1a was operated and shut off. Accordingly, although the on-off valve 1a was not blocked because the breaker 8 was not operated due to an actual malfunction, the on-off valve 1a was mistaken. While working in 3), there was a problem that gas poisoning accidents or explosion accidents occurred.

In addition, the opening and closing valve of the high-pressure gas cylinder opening and closing valve is only 270 ° of the handle (1b) adjustment range of the on-off valve (1a) has a small opening and closing range of the on-off valve (1a), and thus the supply range of the supply gas amount is small. Had a problem.

The present invention has been made to solve the above-mentioned problems of the prior art, when the gas leakage occurs when the breaker is operated so that the operator can visually check the shut-off valve even though the on-off valve is not shut off Aims to provide an on-off valve shut-off valve for a high-pressure gas cylinder that prevents gas poisoning accidents or explosion accidents while continuing to work in the gas consumption area while gas leakage continues.

Another object of the present invention is to provide an on-off valve auto circuit breaker of a high-pressure gas cylinder in which the control range of the on-off valve is increased to 320 °, thereby increasing the control range of the supply amount of the high-pressure gas.

In order to achieve the above object, the on-off valve of the high-pressure gas cylinder of the present invention has an on-off valve of the high-pressure gas cylinder mounted therein, and an “cylinder position” mark and a number indicating the locking degree of the on-off valve are displayed on the outer cylinder surface. An indicator, a first gear train whose output shaft is connected to the indicator, a spring connected to the input shaft of the first gear train, a handle for rotating the input shaft of the first gear train, and a second gear meshed with the first gear train to operate together In the on-off valve car breaker of the high-pressure gas cylinder including a gear train, a locking pin coupled to the locking pin shaft of the second gear train, and a pneumatic cylinder for operating a rod to block the rotation of the locking pin. A limited plate interlocked with rotation of the output shaft, a lock stopper for limiting rotation of the limited plate in a locked state; Opening the stopper, and for restricting the rotation of the open state of the plate group Limited characterized in that it comprises a proximity sensor that is installed to detect the locked state of the limited plate.

In the high-pressure gas cylinder opening and closing valve car breaker is also the first gear train is rotated by the operation of the handle, the input pin is formed at the lower end, the intermediate pinion is engaged with the drive pinion at the upper end is formed. The intermediate shaft, the driven gear is engaged with the intermediate pinion is fixed, characterized in that consisting of the output shaft is connected to the indicator at the end.

The on-off valve auto-breaker of the high-pressure gas cylinder of the present invention is also a second gear is a gear that is provided through the one-way clutch on the intermediate shaft, the output gear is provided so as to be rotatable through the bush through the output shaft. A first idler gear composed of a small diameter gear engaged with the gear and a large diameter gear integrated with the small diameter gear, the first idler gear being rotatably installed through the bush on the intermediate shaft. It consists of a small diameter gear that meshes with the gear, a second idler gear made of a large diameter gear united with the small diameter gear, and a locking pin shaft on which a pinion meshes with the large diameter gear of the second idler gear. It is characterized by that.

The on-off valve auto-breaker of the high-pressure gas cylinder of the present invention is also slidably connected to a part of the cylindrical outer surface of the indicator, and has an outwardly projecting flange formed on the upper side thereof, and a number indicating the opening degree of the on / off valve on the outer surface and the "limiting limit." A secondary indicator having a position " is displayed at regular angle intervals, and an arc-shaped opening groove into which an outwardly projecting flange of the secondary indicator is inserted is formed in an arc portion inside the upper end of the indicator casing surrounding the indicator. On the cylindrical outer surface of the indicator, it characterized in that the locking screw configured to move along the arc by pushing the auxiliary indicator.

According to the on / off valve of the high-pressure gas cylinder opening / closing valve of the present invention, when the gas leakage occurs and the breaker operates to lock the high-pressure gas cylinder closing valve, the limited plate is positioned in the locked state. By detecting and displaying a lock state on a separate display device, the operator can check it with his own eyes. Therefore, when a gas leak occurs, the shutoff valve is not blocked due to a malfunction of the breaker. It is possible to prevent the gas poisoning or explosion accident while working on the gas consumption medicine by mistake.

The present invention also has the effect of increasing the control range of the high-pressure gas supply by increasing the control range of the on-off valve to 320 ° due to the configuration of the auxiliary indicator.

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

2 is an overall exploded perspective view of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention, Figure 3 is a partially exploded perspective view of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention, Figure 4 is a high-pressure gas cylinder according to the present invention Coupling state front perspective view of the shut-off valve car breaker, Figure 5 is a rear perspective view of the coupling state of the on-off valve car breaker of the high pressure gas cylinder according to the present invention, Figure 6 is a left side view of the on-off valve car breaker of the high pressure gas cylinder according to the present invention. 7 is a front view of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention, and FIG. 8 is a front view of a state in which the upper cover, the lower cover and the indicator casing are separated from the on-off valve car-breaker of the high-pressure gas cylinder according to the present invention. 9 is a perspective view of the upper cover, the lower cover and the indicator in the shut-off valve car breaker of the high-pressure gas cylinder according to the present invention Is a perspective view a state where a separate member from the front-side lower.

As shown in Figures 2 and 3, the on-off valve shut off of the high-pressure gas cylinder of the present invention, the indicator (indicator) 10, the first gear train, the spring 30, the handle 40, the second gear train, A locking pin 60, a pneumatic cylinder 70, a limited plate 80, a lock stopper 81 and an open stopper 82, and a proximity sensor 83 are included.

4 and 5, the circuit breaker of the present invention has a clamp 101 attached to the bottom of the clamp column 100, and the clamp 101 has elasticity and is shown in FIG. As described above, the on / off valve 1a of the high pressure gas cylinder 1 is fixed. When the valve is fixed to the on / off valve 1a, the washer 104 is inserted into the clamp bar 102 and the clamp handle 103 is coupled to the thread formed at the end of the clamp bar 102 so that the tip of the clamp handle 103 is washer. Tighten the clamp 101 while pressing the 104.

As shown in FIG. 9, the bottom surface of the indicator 10 is opened and the inner space is shaped to be engaged with the handle 1d of the on / off valve 1a of the high pressure gas cylinder 1.

The indicator 10 is inserted into the indicator casing 15, the indicator casing 15 is fixed to the clamp column 100 and then fixed by a knob 105. The first gear train and the second gear train, the pneumatic cylinder 70, and the limited plate 80 are embedded in the lower cover 43 and the upper cover 44, and the lower cover 44 is shown in FIG. It is coupled to the indicator casing 15.

FIG. 15 is a perspective view of the indicator 10, and FIGS. 16A and 16B are plan views of the indicator 10 and the auxiliary indicator 11 installed in the indicator casing 15, and FIG. 16A is a high pressure gas cylinder. It is a figure which shows the state in the mounting position of the opening-closing valve 1a of (1), and FIG. 16B is a figure which shows the state which opened and closed valve 1a to the "limit position" by rotating the indicator 10. As shown in FIG. 16A and 16B, the numbers and letters displayed on the upper plane of the indicator 10 are actually displayed on the cylindrical side of the indicator 10 and the auxiliary indicator 11 as shown in FIG. It is shown on the side.

As shown in the drawing, an auxiliary indicator 11 in a range of 109 ° is formed, which is slidably connected to a part of the outer surface of the indicator 10 and has an outwardly projecting flange 11a formed at the top thereof. The indicator 10 and the auxiliary indicator 11 are protected by the indicator casing 15, and the indicator casing 15 can see the numbers and letters displayed on the external surface of the indicator 10 and the auxiliary indicator 11 therein. Numeric window 15a is configured.

The numbers displayed on the cylindrical side of the indicator 10 and the auxiliary indicator 11 indicate the opening degree of the on-off valve 1a of the high-pressure gas cylinder 1, which means that the larger the open state. "Mounting position" should be mounted so that this character appears in the numeric window 15a of the indicator casing 15 when the breaker of the present invention is mounted in the high-pressure gas cylinder 1. The reason is explained later in the description of the action.

The indicator casing 15 surrounding the indicator 10 and the auxiliary indicator 11 has an open top and bottom surfaces, and an outwardly projecting flange 11a of the auxiliary indicator 11 is inserted at the top thereof so as to move in an arc direction. An arc-shaped opening groove 15b is formed.

As described above, the numbers displayed on the outer surfaces of the indicator 10 and the sub-indicator 11 are displayed through the numeric window 15a of the indicator casing 15, which is shown in FIG. 15 or 16A. As described above, the non-mountable portion in the range of 100 ° is allocated, and the portions thereafter are marked with the "mounting position" and the numbers 1 to 11 at intervals of 20 ° respectively.

On the outer surface of the auxiliary indicator 11, the numbers 12, 13 and 14 and the indication of the "limit position" are displayed at intervals of 20 degrees, respectively.

FIG. 10 is a side cross-sectional view taken along the line AA in FIG. 7, FIG. 11 is a cross-sectional view taken along the line BB in FIG. 6, and is a cross-sectional view without the upper cover and the lower cover, and FIG. It is a cross-sectional view cut by CC line from the left side view. FIG. 13 is a cross-sectional view taken along the line E-E in the cross-sectional view of FIG. 12, and FIG. 14 is a cross-sectional view taken along the line D-D in FIG.

As shown in FIGS. 10 to 13, the first gear train rotates by the operation of the handle 40, an input shaft 21 having a driving pin 21a formed at a lower end thereof, and the driving pin 21a at an upper end thereof. And an output shaft 23 on which an intermediate shaft 22 in which an intermediate pinion 22a is formed is engaged, and a driven gear 23a in engagement with the intermediate pinion 22a. The indicator 10 is connected to the end.

The input shaft 21 is installed on the upper plate 25 and the handle plate 27 via a bush b, and upper ends of the intermediate shaft 22 and the output shaft 23 are respectively bushed ( It is inserted into the upper plate 25 via b).

The spring 30 is wound around the input shaft 21 of the first gear train in the space between the upper plate 25 and the handle plate 27, and the handle 40 is bolted to the upper end of the input shaft 21. And nuts 42 are provided.

The second gear train engaged with the first gear train operates together with the bushing b on the output gear 23 and the block gear 52 provided on the intermediate shaft 22 via the one-way clutch 51. The first idler gear, which is provided to be rotatable and interposed therebetween, has a small diameter gear 53a meshed with the blocking gear 52 and a large diameter gear 53b integrally formed with the small diameter gear 53a. (53) and the small diameter gear (54a) which is rotatably installed on the intermediate shaft (22) via a bush (b) and meshes with the large diameter gear (53b) of the first idle gear (53). , A second idler gear 54 made of a large diameter gear 54b integral with the small diameter gear 54a, and a pinion meshing with the large diameter gear 54b of the second idler gear 54 ( 55a), it is comprised by the locking pin shaft 55.

The locking pin 60 is provided on the locking pin shaft 55 of the second gear train. The rod 71 of the pneumatic cylinder 70 extends as indicated by the dotted line when the rotation of the locking pin 60 is to be blocked to block the rotation of the locking pin 60.

As shown in FIGS. 10 and 14, the on / off valve breaker according to the present invention rotates to the locked position of the limited plate 80 and the limited plate 80 interlocked with the rotation of the output shaft 23 of the first gear train. Locking stopper 81 for limiting the limit and the opening stopper 82 for limiting the rotation to the open state of the limited plate 80, and the proximity sensor is installed to detect the closed state of the limited plate 80 83 is comprised.

A pinion 23b is formed at an intermediate height of the output shaft 23 of the first gear train for rotation of the limited plate 80, and a driven gear 22b engaged with the pinion 23b is formed at the intermediate shaft 22. Is rotatably installed through the bush b, and the limited plate 80 is fixed to the driven gear 22b by the pin 80a. As shown in FIG. 2 and FIG. 10, the limited plate 80 has a C shape.

As can be seen in FIG. 14, the limited plate 80 rotates between the locked position of the solid line and the maximum open position of the dashed line, and its rotation angle is 120 °. When the limited plate 80 is in the closed position of the solid line, the proximity sensor 83 detects this and a separate alarm device (not shown) locks the on / off valve 1a by a detection signal from the proximity sensor 83. Inform the status.

The on-off valve auto circuit breaker of the high-pressure gas cylinder of the present invention configured as described above acts as follows.

First, compressed air is supplied to the pneumatic cylinder 70 to extend the rod 71 to block rotation of the locking pin 60. In this state, the handle 40 is turned counterclockwise so that the " mounting position " displayed on the cylindrical side surface of the indicator 10 appears in the numeric window 15a as shown in Fig. 16A.

In this process, even if the handle 40 is turned counterclockwise, the first gear train rotating the output shaft 23 by the one-way clutch 51 and the locking pin shaft 55 on which the locking pin 60 is installed are rotated. Since the second gear train is in a state in which rotation forces are not transmitted to each other, the output shaft 23 can be rotated, and the elastic restoring force of the clockwork 30 in the clockwise direction acts on the handle 40 by releasing the rotation force on the handle 40. Even if it does not rotate clockwise by the one-way clutch 51.

In this state, the handle 1b of the high pressure gas cylinder 1 is inserted into the internal space of the indicator 10, and then the clamp 101 is tightened with the clamp handle 103 to open / close the valve shutoff valve of the high pressure gas cylinder 1 ( Install in 1a). At this time, after adjusting the height of the indicator casing 15 so that the handle (1b) of the high-pressure gas cylinder (1) is seated in the interior space of the indicator (10) and fixed by the knob 105.

In this mounting state, the spring 30 is wound by an angle corresponding to about 100 ° of the non-mountable portion of the indicator 10, so that the indicator 10 applies a locking force to the on / off valve 1a to safely open / close the valve ( Keep the lock of 1a).

In this state, the handle 40 of the automobile short circuit is turned counterclockwise to open the on / off valve 1a to supply the gas of the high pressure gas cylinder 1 to the gas consumption region 3 through the gas line 2. At this time, even if the handle 40 releases the counterclockwise rotational force momentarily due to the influence of the one-way clutch 51, it does not rotate clockwise in the locking direction.

When the handle 40 of the circuit breaker is turned, as shown in FIG. 11, the winding 30 is wound while the input shaft 21 of the first gear train 20 rotates. At the same time, the drive pinion 21a rotates to rotate the intermediate pinion 22a and the intermediate shaft 22, and as shown in FIG. 10, the driven gear 23a and the output shaft 23 are rotated. When the output shaft 23 rotates and the indicator 10 coupled to the end thereof rotates, the handle 1b of the on / off valve 1a engaged in the inner space rotates to open the on / off valve 1a.

In this action, since the deceleration action is caused by the gear tooth ratio of the intermediate pinion 22a and the driven gear 23a configured in the first gear train, the indicator 10 rotates relatively small angle.

In the opening operation of the handle 40, as shown in FIG. 16A, the indicator 10 rotates counterclockwise. At first, only the indicator 10 rotates, but the auxiliary indicator 11 does not rotate. Then, when the locking screw 12 formed on the outer surface of the indicator 10 comes into contact with the auxiliary indicator 11, the locking screw 12 pushes the auxiliary indicator 11 to open the arc-shaped opening groove 15b. By moving along, the indicator 10 and the auxiliary indicator 11 rotate together.

The number displayed on the outer surface of the indicator 10 and the auxiliary indicator 11 is shown through the numeric window 15a of the indicator casing 15, 1, 2, 3. in the "mounting position" of the indicator 10. After the larger number appears and the number 11 appears, the number 12, 13, 14 of the auxiliary indicator 11 appears, followed by the "limit position". As described above, the intervals of 20 ° are maintained step by step from the "mounting position" to the "limit position", respectively, and rotate 16 steps, that is, 320 ° as a whole.

As shown in FIG. 16B, when the indicator 10 is rotated 320 ° so that the tip of the auxiliary indicator 11 contacts the end of the arc-shaped opening groove 15b of the indicator casing 15, the indicator 10 rotates. This is stopped. This state becomes the maximum open state of the on-off valve 1a.

Due to the configuration of the auxiliary indicator 11 as described above, the indicator 10 can be rotated up to 320 °, and the adjustment range of the gas supply amount of the open / close valve 1 can be increased accordingly.

On the other hand, as shown in FIGS. 10 and 11, when the output shaft 23 rotates, the driven gear 22b of the intermediate shaft 22 engaged with the pinion 23b rotates idle and the limited plate 80 is the intermediate shaft. Rotate independently with respect to (22). When the indicator 10 rotates to the "limit position", the limit plate 80 is in the position of the dashed line mark and can no longer be rotated by the opening stopper 82.

In addition, as shown in FIGS. 10 to 13, the intermediate shaft 22 has the second gear train blocking gear 52, the first idle gear 53, the second idle gear 54, and the one-way clutch 51. The engaging pin shaft 55 and the engaging pin 60, which are connected to the pinion 55a and on which the pinion 55a is formed, are connected to the elongated rod 71 of the pneumatic cylinder 70 (indicated by a dotted line in FIG. 12). Rotation is blocked.

Therefore, as described above, when the intermediate shaft 22 rotates in the opening direction of the indicator 10, the intermediate shaft 22 is in an idle state with respect to the blocking gear 52 by the one-way clutch 51. There is no

As shown in FIG. 1, the gas of the high pressure gas cylinder 1 is supplied to the gas consumption region 3 through the on / off valve 1a in the open state of the open / close valve 1a, and the gas is consumed in the gas consumption region 3. Toxic gas sensor 4a, combustible gas sensor 4b, and temperature sensor 4c installed in the gas consumption region 3 when leakage occurs in the gas consumption region 3 or when the temperature of the gas consumption region 3 abnormally rises. Various sensors such as this sense the detection signal to the toxic gas alarm device (5a), flammable alarm device (5b), the temperature alarm device (4c) and these alarm device sends a control signal to the breaker control unit (6). In addition, even when an earthquake occurs, the earthquake alarm device 5d sends a control signal to the breaker control unit 6.

In this case, the breaker control unit 6 interrupts the supply of compressed air to the pneumatic cylinder 70 of the breaker by blocking the solenoid valve 7, and the rod 71 of the pneumatic cylinder 70 is formed by an internal elastic spring. Return inside Accordingly, the locking pin 60 is free to rotate.

In this state, the first gear train and the second gear train are engaged with each other by the loosening elastic force of the spring 30 to rotate together in the locking direction, and the handle 40 and the indicator 10 are rotated clockwise so that the high pressure gas cylinder 1 To close the on / off valve (1a).

When the indicator 10 rotates clockwise in the limit position of FIG. 16B, the mounting screw 12 contacts the opposite end of the auxiliary indicator 11 and pushes the auxiliary indicator 11 clockwise while the mounting position of FIG. 16A is rotated clockwise. Move along the arc until

Likewise, as shown in FIG. 14, the limited plate 80 is rotated to a solid line position and stopped by the lock stopper 81.

That the limited plate 10 is in the locked position means that the indicator 10 has rotated to lock the opening / closing valve 1a of the high pressure gas cylinder 1. At this time, the proximity sensor 83 detects the fact that the limited plate 10 is in the locked position and sends this detection signal to a separate alarm device (not shown) to display an alarm so that the operator opens / closes the valve of the high pressure gas cylinder 1 ( It can be surely recognized that 1a) is locked and can safely prevent leakage.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the invention, and such changes or modifications are consequently claimed. You will have to belong to the range.

1 is a configuration diagram of a safety system of a facility using a general high pressure gas,

Figure 2 is an overall exploded perspective view of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention,

3 is an exploded perspective view of a part of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention;

4 is a front perspective view of the coupled state of the on-off valve auto circuit breaker of the high-pressure gas cylinder according to the present invention;

5 is a perspective view of the coupled state of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention;

Figure 6 is a left side view of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention,

7 is a front view of the on-off valve car breaker of the high-pressure gas cylinder according to the present invention;

8 is a perspective view of a state in which an upper cover, a lower cover, and an indicator casing are separated from an open / close valve car breaker of a high pressure gas cylinder according to the present invention;

9 is a perspective view of a state in which the upper cover, the lower cover and the indicator cover are separated from the front lower portion of the on / off valve auto shutoff according to the present invention;

10 is a side cross-sectional view taken along the line A-A in the front view of FIG.

FIG. 11 is a cross-sectional view taken along line B-B in FIG. 6, and a cross-sectional view without the upper cover and the lower cover;

12 is a cross-sectional view taken along the line C-C in the left side view of FIG.

FIG. 13 is a plan sectional view taken along the line E-E in the sectional view of FIG. 12;

14 is a plan sectional view taken along the line D-D in FIG.

15 is a perspective view of an indicator that is a component of an on / off valve auto circuit breaker of a high pressure gas cylinder according to the present invention;

16A and 16B are plan views of the state in which the indicator and the auxiliary indicator are installed in the indicator casing, and Fig. 16A is a view showing the state in which the indicator is in the "attachment position" of the on-off valve of the high pressure gas cylinder, and Fig. 16B is a view of rotating the indicator. It is a figure which shows the state which the on-off valve 1a opened to the "limit position."

<Description of the symbols for the main parts of the drawings>

1: high pressure gas cylinder 1a: on-off valve

1b: (opening and closing valve) handle 2. Gas line

3. Gas consumption area 4a: toxic gas sensor

4b: combustible gas sensor 4c: temperature sensor

5a: poisonous gas alarm device 5b: flammable gas alarm device

5c: temperature alarm 5d: earthquake alarm

6: breaker control part 7: solenoid valve

10: indicator 11: auxiliary indicator

11a: outwardly facing flange 12: locking screw

15: indicator casing 15a: numeric display

15b: (Arc shape) Opening groove 21: Input shaft

21a: drive pinion 22: intermediate shaft

22a: intermediate pinion 22b: driven gear

23: output shaft 23a: driven gear

23b: pinion 25: top plate

26: lower plate 27: handle plate

       30: Manual winding 40: (breaker) steering wheel

       41: bolt 42: nut

       43: lower cover 44: upper cover

       51: one-way clutch 52: disconnect gear

       53: first children gear 53a: small diameter gear

       53b: large diameter gear 54: second children gear

       54a: small diameter gear 54b: large diameter gear

       55: locking pin shaft 55a: pinion

       60: locking pin 70: pneumatic cylinder

       71: load 80: limited plate

       80a: pin 81: lock stopper

       82: open stopper 83: proximity sensor

       100: clamp column 101: clamp

       102: clamp bar 103: clamp handle

       104: washer 105: knob

Claims (4)

An indicator 10 and an output shaft 23 in which an on-off valve 1a of the high-pressure gas cylinder 1 is mounted inside and a number indicating the mounting position and the degree of locking of the on-off valve 1a is displayed on the outer cylinder surface. A first gear train connected to the indicator 10, a spring 30 connected to an input shaft 21 of the first gear train, a handle 40 for rotating the input shaft 21 of the first gear train, The second gear train engaged with the first gear train and the hook pin 60 coupled to the locking pin shaft 55 of the second gear train, and a rod blocking the rotation of the locking pin 60. In the on-off valve car breaker of the high-pressure gas cylinder including a pneumatic cylinder (70) for operating), Limited plate 80 in cooperation with the rotation of the output shaft 23 of the first gear train, A locking stopper 81 for limiting the rotation of the limited plate 80 in the locked state and an opening stopper 82 for limiting the rotation of the limited plate 80 in the open state; Auto shut off valve for high-pressure gas cylinder, characterized in that it comprises a proximity sensor (83) which is installed to detect the locked state of the limited plate (80). According to claim 1, The first gear train is rotated by the operation of the handle 40, the input shaft 21 is formed with a drive pinion (21a) at the bottom, the upper engagement with the drive pinion (21a) at the top An intermediate shaft 22 having an intermediate pinion 22a, and a driven gear 23a engaged with the intermediate pinion 22a are fixed and connected to an output shaft 23 at which the indicator 10 is connected. Auto shut off valve of high pressure gas cylinder, characterized in that consisting of. The said 2nd gear train is rotatable by the interruption gear 52 provided in the intermediate | middle shaft 22 via the one-way clutch 51, and the bushing b in the said output shaft 23. A first idler gear 53 formed of a small diameter gear 53a meshed with the block gear 52 and a large diameter gear 53b integrally formed with the small diameter gear 53a; The small diameter gear 54a which is rotatably installed in the intermediate shaft 22 via the bush b, and meshes with the large diameter gear 53b of the first idle gear 53, and the small diameter. A second idler gear 54 composed of a large diameter gear 54b integral with the gear 54a, and a pinion 55a engaged with the large diameter gear 54b of the second idler gear 54 are formed. High-pressure gas cylinder opening and closing valve car breaker, characterized in that consisting of the locking pin shaft 55. 2. The number according to claim 1, wherein the indicator 10 is slidably connected to a portion of the cylindrical outer surface, and an outwardly projecting flange 11a is formed at an upper end thereof, and the number indicating the opening degree of the opening / closing valve 1a on the outer surface thereof. And an auxiliary indicator 11 having a " limit position " indication displayed at regular angle intervals, wherein the auxiliary indicator 11 has a circular arc portion inside the upper end of the indicator casing 15 surrounding the indicator 10. An arc-shaped opening groove 15b into which the outwardly projecting flange 11a is inserted is formed, and the locking screw 12 for moving the auxiliary indicator 11 along the arc by pushing the auxiliary indicator 11 on the cylindrical outer side of the indicator 11. Auto shut off valve of the high-pressure gas cylinder, characterized in that the configuration.

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