CN212537501U - Emergency shut-off device and system for steel cylinder valve - Google Patents

Abstract

The utility model discloses a steel cylinder valve emergency shut-off device and a system, which relate to the technical field of steel cylinder valve shut-off equipment, and comprise a shut-off device body, a valve fixing component, an operating component, a transmission component and a valve shut-off component, wherein the shut-off device body is connected with the valve fixing component through a bracket, the operating component is arranged on the shut-off device body, and the transmission component is arranged inside the shut-off device body; the valve fixing assembly comprises a fixing ring, a connecting screw hole and a bolt; an operating assembly including an operating handle; the transmission assembly comprises a mechanical piece and a pneumatic piece; a valve shut-off assembly including a shut-off chuck. The utility model discloses have through set up the drive assembly who comprises pneumatic part, mechanical part, restriction piece and stopper on the shutoff device body to realize the transmission, drive the valve and turn-off the subassembly and realize the urgent shutoff to the valve, realized only needing long-range air supply that cuts off, shut off the function that the chuck will promptly close the valve at once, improved the security performance of former valve greatly.

Description

Emergency shut-off device and system for steel cylinder valve

Technical Field

The utility model relates to a cylinder valve shutoff equipment technical field, more specifically say, it relates to cylinder valve emergency shutdown device and system.

Background

The pressure container is a closed device for bearing gas or liquid and bearing a certain pressure, and has wide application. Among them, for a metal container suitable for liquefaction pressure of liquefied petroleum gas, coal gas, dimethyl ether, natural gas, etc., the circulation and shutoff of high pressure gas are not realized, and a valve is usually arranged on the pressure container. However, if high-pressure gas leaks from the valve, accidents such as explosion and gas poisoning are likely to occur, and the above dangerous situation may also be caused by abnormal phenomena such as earthquake.

In view of the above, it is desirable to provide an emergency shut-off device for a high-pressure vessel, which can perform emergency shut-off of a source valve to shut off a gas supply.

SUMMERY OF THE UTILITY MODEL

To this problem in the actual application, the utility model aims to provide a steel cylinder valve emergency shutdown device and system, concrete scheme is as follows:

the steel cylinder valve emergency shut-off device is used for realizing emergency shut-off of a valve on a high-pressure container and comprises a shut-off device body, a valve fixing component, an operating component, a transmission component and a valve shut-off component, wherein the shut-off device body is connected with the valve fixing component through a bracket, the operating component is installed on the shut-off device body, the transmission component is installed inside the shut-off device body,

the shutoff device body is detachably arranged on the bracket, and the top of the shutoff device body is rotatably connected with a hanging ring;

the valve fixing assembly comprises a fixing ring, connecting screw holes and bolts, the fixing ring is fixedly arranged at one end, far away from the shutoff device body, of the bracket, the fixing ring comprises semi-rings which are separated from each other, the connecting screw holes are respectively formed in the two semi-rings, and the bolts penetrate through the corresponding connecting screw holes in the two semi-rings so as to fix the valve by the valve fixing assembly;

the operating assembly comprises an operating handle, the operating handle is positioned outside the shutoff device body, and the operating handle is used for controlling the operation of the transmission assembly so as to realize the emergency shutoff of the valve by the valve shutoff assembly;

the transmission assembly comprises a mechanical piece and a pneumatic piece, the mechanical piece and the pneumatic piece are both arranged inside the shutoff device body, the pneumatic piece comprises a cylinder, the cylinder is supplied with air by an air source to realize the work of the cylinder, and the pneumatic piece and the mechanical piece work in a matched mode to drive the valve shutoff assembly to realize the shutoff work of the valve;

the valve shutting assembly is used for shutting a valve and comprises a shutting chuck which is arranged at the position of a valve port of the valve;

when the valve leaks, the air source stops supplying air, and the transmission assembly drives the valve shutoff assembly to start working so as to realize emergency shutoff of the valve.

Through the technical scheme, in an initial state, the gas source continuously supplies gas to the cylinder to realize the work of the cylinder, the operating handle is screwed, the mechanical part works to cooperate with the pneumatic part to drive the shutoff chuck to work to open the valve, when gas leakage and other accidents occur, the gas source stops supplying gas to the cylinder, the cylinder stops working, the shutoff chuck emergently closes the valve under the cooperation action of the mechanical part and the pneumatic part, so that only the gas supply is stopped for the shutoff device to realize the emergency shutoff of the original valve of the container, the accidents of explosion, gas poisoning and the like caused by the leakage of high-pressure gas are prevented, the loss caused by secondary disasters during earthquake and other abnormal reactions is avoided, the safety performance of the original valve is greatly improved, the production safety of people is ensured, and the whole shutoff process only has the cooperation of gas pressure and mechanical energy without a power supply, the safety performance is high.

Furthermore, the shutoff device body comprises an upper shell and a lower shell, the lower shell is detachably connected to the support through a bolt, and the upper shell is detachably connected to the lower shell.

Through above-mentioned technical scheme, utilize the combined action of last casing and lower casing, play the effect of protection drive assembly, through bolted connection's mode, conveniently dismantle it and overhaul or change, facilitate the use, utilize the bolt to carry out the regulation of position simultaneously, can make this intercepting device adapt to the use of the valve of different models size.

Furthermore, the mechanical part comprises a first gear, the first gear is connected with the operating handle through a first transmission shaft, the first gear is in meshed connection with the second gear, the second gear is in meshed connection with the third gear, the third gear is in transmission connection with a limiting ring through a second transmission shaft, one end, far away from the third gear, of the second transmission shaft is fixedly connected with a turn-off chuck, and the turn-off chuck is provided with a limiting rod matched with the limiting ring for use;

and a clockwork spring is arranged at one end of the first transmission shaft, which is close to the operating handle.

Through above-mentioned technical scheme, during initial condition, rotate the operating handle, drive first gear revolve to drive second gear revolve, drive third gear revolve after that, drive the second transmission shaft again, drive at last and turn off the chuck and rotate, open the valve, after rotating the operating handle, the energy of clockwork spring can be filled up, this moment under drive assembly's effect, the valve is in the open mode, the energy release of later stage clockwork spring combines drive assembly, can realize closing of valve.

Furthermore, the transmission assembly further comprises a limiting part and a limiting part, the limiting part comprises an outer shell, a sliding limiting block, a pull rod and a limiting rod, the outer shell is connected with the upper shell through a fixing plate, the sliding limiting block, the pull rod and the limiting rod are located inside the outer shell, the pull rod penetrates through the outer shell and the fixing plate, the pull rod is connected with the limiting rod through a rotating part, the rotating part is rotatably connected to the outer shell, a first return spring is arranged outside the limiting rod, one side of the sliding limiting block is connected with an output shaft of the air cylinder, the sliding limiting block is driven by the air cylinder to move along the length direction of the air cylinder so as to fix the limiting rod, and a second return spring is arranged on the output shaft of the air cylinder;

the limiting part comprises a first mounting partition plate, a worm wheel and a worm, a mounting block is mounted on the first mounting partition plate, one side of the mounting block is rotatably connected with the worm, the worm wheel is connected to one end, far away from the mounting block, of the worm in a transmission manner, the worm wheel is connected with a fourth gear in a transmission manner through a third transmission shaft, a limiting hole matched with the limiting rod for use is formed in one end, far away from the worm wheel, of the worm, two limiting holes are formed and are symmetrical about the horizontal center line of the worm,

the first gear is in transmission connection with a fifth gear through a fourth transmission shaft, the fifth gear is in rotation connection with the fourth transmission shaft through a one-way bearing, and the fifth gear is in meshing connection with the fourth gear.

Through above-mentioned technical scheme, restriction piece, stopper, pneumatic part and mechanical part interact realize the urgent shutoff to the former valve of container, and specific working process is as follows: in the initial state, the air source continuously supplies air to the air cylinder, the pull rod is pulled upwards, the limiting rod is driven to move towards the direction of the worm under the action of the rotating piece until the limiting rod is inserted into the limiting hole to limit the work of the worm and the worm wheel, meanwhile, the air cylinder works to drive the output shaft of the air cylinder to move towards the direction of the limiting rod, the output shaft of the air cylinder drives the sliding limiting block to move so as to play a role of fixing the limiting rod, then the operating handle is screwed, as mentioned above, the first gear rotates to drive the second gear to rotate, the second gear drives the fourth transmission shaft and the fifth gear to rotate, the fifth gear is meshed with the fourth gear, but the worm wheel is limited to rotate, the fourth gear is also limited to rotate at the same time, as the fifth gear is rotatably connected with the fourth transmission shaft through the one-way bearing, the fifth gear is in a one-way free rotation state, and the other end of the second transmission shaft, the second transmission shaft rotates to drive the limiting ring to rotate, the limiting ring is limited to rotate after rotating to the limiting rod, the second transmission shaft cannot freely rotate in 360 degrees, the rotation angle of the turn-off chuck is smaller than 360 degrees, and the valve is opened; when accidents such as gas leakage occur, the gas source stops supplying gas to the cylinder, the output shaft of the cylinder is driven to move towards the direction far away from the limiting rod under the elastic action of the second reset spring, so that the fixing of the limiting rod is removed, then the limiting rod is driven to move towards the direction far away from the worm under the elastic action of the first reset spring, the limiting rod is separated from the limiting hole, the pull rod moves downwards under the action of the rotating piece, at the moment, the worm is separated from the limiting of the limiting rod, the fifth gear rotates and simultaneously drives the fourth gear to rotate, so that the third transmission shaft and the worm wheel are sequentially driven to rotate, the worm is driven to rotate, the limiting action of the worm and the worm wheel is removed, the energy of the spring drives the second transmission shaft to rotate reversely, the turn-off chuck is driven to rotate reversely, the valve is closed, and the original valve is turned off emergently, the shutoff can be realized only by remotely cutting off the air source, and the shutoff device is convenient and quick, high in safety performance and high in shutoff stability performance.

Further, the cylinder, the limiting piece and the spring are all arranged on a second installation clapboard, the second installation clapboard is arranged inside the upper shell,

and the air cylinder is provided with an air vent.

Through above-mentioned technical scheme, the effect that supports can be played in the setting of second installation baffle, and the setting of blow vent utilizes the blow vent to the inside air feed of cylinder, facilitates the use.

Furthermore, the rotating part comprises a rotating shaft and a driving block, the driving block is of an H-shaped structure, the pull rod and the limiting rod are respectively positioned at two ends of the driving block and inside the driving block, and the rotating shaft penetrates through a vertical center line of the driving block and is rotatably connected to the outer shell;

a first stop lever is fixedly connected to the pull rod, a second stop lever is fixedly connected to the limiting rod, and the first stop lever and the second stop lever are both positioned at the bottom of the driving block;

one end of the sliding limiting piece, which is close to the limiting rod, is fixedly connected with a stop block;

one end of the pull rod penetrates through the upper shell and extends to the outside of the upper shell.

Through the technical scheme, after the pull rod upwards stimulates, the one end of first pin rebound drive piece, the pivot rotates, the other end downshifting of drive piece, press and move second pin downshifting, drive the gag lever post downshifting along with, can realize the restriction to the worm, the setting of dog is in order to when the position department that the slip gag lever post removed to the gag lever post, the gag lever post can be fixed to the dog, make the gag lever post no longer the rebound, run through the length of locating the upper shell through the pull rod, the operating condition of judgement blocking device that can be obvious, convenience of customers' observation and work.

Furthermore, the shutoff chuck is of a circular tube type structure with one end not closed, and the shape of the inner side wall of the shutoff chuck is matched with that of the outer side wall of the valve.

Through the technical scheme, the sealing performance of the valve during the shutoff is realized.

Further, the regulating part includes outer supporter, regulating plate and torsional spring, outer supporter remove set up in on the support, evenly seted up a plurality of latches along its direction of height on the support, the one end of regulating plate rotate through first pivot connect in on the outer supporter, the other end passes through the latch with the support joint, the intermediate position of regulating plate rotate through the second pivot connect in on the outer supporter, just be provided with in the second pivot the torsional spring.

Through the technical scheme, one end of the adjusting plate close to the first rotating shaft is pressed, so that the other end of the adjusting plate is separated from the clamping teeth on the support, the free movement of the whole adjusting piece on the support can be realized, one end of the adjusting plate close to the first rotating shaft is loosened, the other end of the adjusting plate is clamped with the clamping teeth on the support again under the elastic action of the torsional spring, the fixing between the adjusting piece and the adjusting piece can be realized, and the adjustment of the position can be realized conveniently.

Further, a steel cylinder valve emergency shutdown detection system comprises a field detection module, a cloud server, a user terminal and a communication network unit, wherein,

the on-site detection module comprises an inductor, a controller and an intelligent positioning unit, wherein the inductor is used for detecting the position of the pull rod so as to detect the state of the steel cylinder valve emergency shutoff device, transmitting a signal to the controller for opening and closing the on-site detection module, receiving and analyzing the signal transmitted by the on-site detection module, and transmitting an analysis result to the cloud server end through the communication network unit, and the intelligent positioning unit is used for intelligently positioning the steel cylinder valve emergency shutoff devices at different positions;

the client is used for acquiring a data link or a control link between the client and the cloud server and between the client and the field detection module, and receiving and displaying detection information sent by the cloud server and the field detection module;

and the communication network unit is used for communication service among the on-site detection module, the cloud server side and the user side.

Through above-mentioned technical scheme, utilize the on-the-spot detection module to detect valve emergency shut-off device's operating condition, through cloud server end and network communication unit with signal transmission to user side, help the user to know the state of the emergency shut-off device who distributes in different positions department to judge the state of valve, in order to make things convenient for the user to master the state of the valve of different positions department, thereby the valve to different positions department is overhauld and is changed to the convenience.

Further, the inductor is mounted on the shutoff device body and located above the pull rod.

Through the technical scheme, the working state of the emergency shutdown device is judged by detecting the distance between the sensor and the pull rod, and the function of remote monitoring is realized.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the transmission assembly consisting of the pneumatic part, the mechanical part, the limiting part and the limiting part is arranged on the shutoff device body to realize transmission, so that the valve shutoff assembly is driven to realize emergency shutoff of the valve, the function that the valve can be immediately and emergently closed by the shutoff chuck only by remotely cutting off the air source is realized by utilizing the combination of air pressure and mechanical energy, accidents such as explosion, gas poisoning and the like caused by high-pressure gas leakage are prevented, the loss caused by secondary disasters during abnormal reactions such as earthquakes and the like is avoided, the safety performance of the original valve is greatly improved, the production safety of people is ensured, and the operation is simple;

(2) the valve is closed by remotely cutting off the gas source, so that the danger of manually cutting off the valve in a close range is avoided, the original valve of the container can be cut off more safely, and the safety of workers is ensured;

(3) the valve is fixed on the intercepting device by arranging the valve fixing assembly, and the intercepting device is directly fixed on the container, so that the shaking during earthquake is reduced, the accuracy and the stability of the cutting of the valve are ensured, and the safety performance is improved;

(4) through setting up intelligent detection system for the user can be convenient on the user end the judgement be located the state of the valve of different positions department, convenience of customers overhauls and changes the valve, improves work efficiency on the whole.

Drawings

Fig. 1 is an overall external view of the present invention;

fig. 2 is a schematic view of the overall structure of the transmission assembly of the present invention;

FIG. 3 is a schematic view of the connection structure of the mechanical member of the present invention;

FIG. 4 is a schematic view of a connection structure of the limiting member of the present invention;

FIG. 5 is an enlarged view of a portion A of FIG. 4 according to the present invention;

fig. 6 is a schematic view of a connection structure of the transmission assembly of the present invention;

FIG. 7 is a schematic view of a connecting structure of the stopper of the present invention;

fig. 8 is an overall view of the exterior of the present invention at a bottom view angle;

fig. 9 is a schematic structural diagram of a shutdown chuck according to a first embodiment of the present invention;

fig. 10 is a schematic structural view of a shutdown chuck according to a second embodiment of the present invention;

FIG. 11 is a schematic structural view of an adjusting member according to an embodiment of the present invention;

fig. 12 is an overall schematic view of the cylinder valve emergency shutdown detection system of the present invention.

Reference numerals: 1. shutting down the device body; 11. an upper housing; 12. a lower shell 13 and a hanging ring; 2. a valve securing assembly; 21. a fixing ring; 22. a connecting screw hole; 23. a bolt; 3. an operating component; 31. an operating handle; 4. a transmission assembly; 41. a mechanical piece; 411. a first gear; 412. a first drive shaft; 413. a second gear; 414. a third gear; 415. a second drive shaft; 416. a limiting ring; 417. a limiting rod; 42. a pneumatic member; 421. a cylinder; 422. a vent; 43. a limiting member; 431. an outer housing; 432. a slide restricting block; 433. a pull rod; 434. A restraining bar; 435. a fixing plate; 436. a rotating member; 437. a rotating shaft; 438. driving the block; 439. a first return spring; 4310. a second return spring; 4311. a first bar; 4312. A second bar; 4313. a stopper; 44. a stopper; 441. a first mounting baffle; 442. A worm gear; 443. a worm; 444. a third drive shaft; 445. a fourth gear; 446. a limiting aperture; 447. a fourth drive shaft; 448. a fifth gear; 449. a one-way bearing; 5. a valve shut-off assembly; 51. the chuck is turned off; 6. a support; 61. clamping teeth; 7. a clockwork spring; 8. a second mounting baffle; 9. an adjustment member; 91. an outer support; 92. an adjusting plate; 93. a torsion spring; 94. A first rotating shaft; 95. a second rotating shaft.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

Example one

As shown in fig. 1-2, the steel cylinder valve emergency shut-off device for the realization of the valve on the high pressure vessel promptly cuts off, including shut-off device body 1, valve fixed component 2, operating assembly 3, transmission assembly 4 and valve shut-off component 5, shut-off device body 1 is connected with valve fixed component 2 through support 6, shut-off device body 1, demountable installation is on support 6, shut-off device body 1 includes casing 11 and casing 12 down, casing 12 passes through regulating part 9 and can dismantle the connection on support 6 down, go up casing 11 and can dismantle the connection on casing 12 down. Like this, utilize the combined action of last casing 11 and lower casing 12, play the effect of protection drive assembly 4, through the mode that regulating part 9 is connected, conveniently dismantle it and overhaul or change, facilitate the use, utilize regulating part 9 to carry out the regulation of position simultaneously, can make this intercepting device adapt to the use of the valve of different models size.

The top of the shut-off device body 1 is rotatably connected with a hanging ring 13. The suspension ring 13 is arranged to realize the suspension of the whole device.

Valve fixing assembly 2, including solid fixed ring 21, connection screw 22 and bolt 23, gu fixed ring 21 fixed mounting keeps away from the one end of shutoff device body 1 on support 6, gu fixed ring 21 includes the semi-ring of alternate segregation, connect screw 22 and set up respectively on two semi-rings, bolt 23 runs through corresponding connection screw 22 on two semi-rings to realize that valve fixing assembly 2 is fixed the valve. Alternatively, the fixing ring 21 is provided with two semi-ring structures separated from each other, and the bolt 23 penetrates through a connecting screw hole on the fixing ring 21 to realize the fixing and the loosening of the fixing ring 21. In this way, the original valve is mounted inside the fixed ring 21 and fastened by the bolt 23 to mount the blocking device on the container valve, which helps to reduce the wobble and ensure the stability of the emergency shut-off of the valve when an accident such as an earthquake occurs.

The operation assembly 3 is arranged on the shutoff device body 1, the operation assembly 3 comprises an operation handle 31, the operation handle 31 is positioned outside the shutoff device body 1, and the operation handle 31 is used for controlling the operation of the transmission assembly 4 so as to realize the emergency shutoff of the valve by the valve shutoff assembly 5. Therefore, when the valve is opened, the operation of the handle 31 can be realized, and the operation is simple, convenient and convenient.

Drive assembly 4, drive assembly 4 installs in the inside of shutoff device body 1, including mechanical part 41 and pneumatic part 42, mechanical part 41 and pneumatic part 42 are all installed in the inside of shutoff device body 1, and pneumatic part 42 includes cylinder 421, and cylinder 421 is by the air supply air feed to realize the work of cylinder 421, and pneumatic part 42 and mechanical part 41 cooperation work to drive valve shutoff subassembly 5 and realize the shutoff work to the valve.

The valve shutting assembly 5 is used for shutting the valve and comprises a shutting chuck 51 which is arranged at the position of a valve port of the valve; when the valve leaks, the air source stops supplying air, and the transmission component 4 drives the valve shutoff component 5 to start working so as to realize emergency shutoff of the valve.

In the initial state, the air source continuously supplies air to the air cylinder 421 to realize the work of the air cylinder 421, the operating handle 31 is screwed, the mechanical part 41 works to cooperate with the pneumatic part 42 to drive the shutoff chuck 51 to work to open the valve, when an accident condition such as air leakage occurs, the air source stops supplying air to the air cylinder 421, the air cylinder 421 stops working, under the cooperation action of the mechanical part 41 and the pneumatic part 42, the shutoff chuck 51 is turned off to emergently close the valve, so that the emergency shutoff of the original valve of the container can be realized only by stopping the air supply to the shutoff device, accidents such as explosion, gas poisoning and the like caused by high-pressure air leakage are prevented, the loss caused by secondary disasters during abnormal reaction such as earthquake and the like is avoided, the safety performance of the original valve is greatly improved, the production safety of people is ensured, and only the cooperation action of air pressure and mechanical energy exists in, no power supply is needed, and the safety performance is high.

As shown in fig. 3, the mechanical member 41 includes a first gear 411, the first gear 411 is connected to the operating handle 31 through a first transmission shaft 412, the first gear 411 is connected to a second gear 413 in a meshing manner, the second gear 413 is connected to a third gear 414 in a meshing manner, the third gear 414 is connected to a limit ring 416 through a second transmission shaft 415 in a transmission manner, a shutoff chuck 51 is fixedly connected to one end of the second transmission shaft 415 far from the third gear 414, and the shutoff chuck 51 is provided with a limit rod 417 used in cooperation with the limit ring 416. Thus, in the initial state, the operating handle 31 is rotated to drive the first gear 411 to rotate, and the second gear 413 to rotate, and then the third gear 414 to rotate, and finally the shutoff chuck 51 to rotate, so as to open the valve.

As shown in fig. 4, 6, and 7, the transmission assembly 4 further includes a limiting member 43 and a limiting member 44, the limiting member 43 includes an outer shell 431, a sliding limiting block 432, a pull rod 433, and a limiting rod 434, the outer shell 431 is connected to the upper shell 11 through a fixed plate 435, the sliding limiting block 432, the pull rod 433, and the limiting rod 434 are all located inside the outer shell 431, the pull rod 433 penetrates through the outer shell 431 and the fixed plate 435, the pull rod 433 is connected to the limiting rod 434 through a rotating member 436, the rotating member 436 is rotatably connected to the outer shell 431, a first return spring 439 is disposed outside the limiting rod 434, one side of the sliding limiting block 432 is connected to an output shaft of the cylinder 421, the sliding limiting block 432 is driven by the cylinder 421 to move along a length direction of the cylinder 421 to fix the limiting rod 434, and a second return spring 4310 is; the limiting part 44 comprises a first mounting partition 441, a worm wheel 442 and a worm 443, wherein a mounting block is mounted on the first mounting partition 441, one side of the mounting block is rotatably connected with the worm 443, one end of the worm 443, which is far away from the mounting block, is in transmission connection with the worm wheel 442, the worm wheel 442 is in transmission connection with a fourth gear 445 through a third transmission shaft 444, one end of the worm 443, which is far away from the worm wheel 442, is provided with two limiting holes 446, the two limiting holes 446 are symmetrical about a horizontal center line of the worm 443, the first gear 411 is in transmission connection with the fifth gear 448 through the fourth transmission shaft 447, the fifth gear 448 is in rotation connection with the fourth transmission shaft through a one-way bearing 449, and the fifth gear 448 is in meshing connection with the fourth gear 445. A spring 7 is provided on the first transmission shaft 412 at an end close to the operating handle 31. In this way, the limiting member 43, the limiting member 44, the pneumatic member 42 and the mechanical member 41 interact with each other to realize the emergency shut-off of the original valve of the container, and the specific working process is as follows: in the initial state, the air source continuously supplies air to the air cylinder 421, the pull rod 433 is pulled upwards, under the action of the rotating member 436, the limiting rod 434 is driven to move towards the worm 443 until the limiting rod 434 is inserted into the limiting hole 446 to limit the operation of the worm 443 and the worm wheel 442, at the same time, the air cylinder 421 is operated to drive the output shaft of the air cylinder 421 to move towards the limiting rod 434, the output shaft of the air cylinder 421 drives the sliding limiting block 432 to move so as to fix the limiting rod 434, then the operating handle 31 is screwed, as above, the first gear 411 rotates to drive the second gear 413 to rotate, the second gear 413 drives the fourth transmission shaft 447 and the fifth gear 448 to rotate, the fifth gear 448 is meshed with the fourth gear 445, but at this time, the worm wheel 442 is limited to rotate, the fourth gear 445 is also limited to rotate at the same time, because the fifth gear 448 is rotatably connected with the fourth transmission shaft 447 through the one-way bearing 449, at this time, the fifth gear 448 is in a unidirectional free rotation state, the other end of the second transmission shaft 415 is connected with the limit ring 416, the second transmission shaft 415 rotates to drive the limit ring 416 to rotate, the limit ring 416 rotates to the limit rod 417 and is limited to rotate, so that the second transmission shaft 415 cannot rotate freely in 360 degrees, the rotation angle of the shutoff chuck 51 is smaller than 360 degrees, the opening of the valve is realized, the limit ring 416 and the limit rod 417 are matched to limit the rotation of the shutoff chuck 51, the length and the weight of the whole shutoff device can be reduced, the processing cost can be effectively saved, at this time, under the common limiting action of the worm gear 442 and the worm 443, the energy of the spring 7 is not enough to reversely rotate the second transmission shaft 415, and the opening state of the valve can be always kept; when an accident such as gas leakage occurs, the gas source stops supplying gas to the cylinder 421, the output shaft of the cylinder 421 is driven to move away from the limit rod 434 by the elastic action of the second return spring 4310, so as to release the fixing of the limit rod 434, then the limit rod 434 is driven to move away from the worm 443 by the elastic action of the first return spring 439, the limit rod 434 is disengaged from the inside of the limit hole 446, the pull rod 433 moves downward by the action of the rotation member 436, at this time, the worm 443 is disengaged from the limit of the limit rod 434, the fifth gear 448 rotates and simultaneously drives the fourth gear 445 to rotate, so as to drive the third transmission shaft 444 and the worm wheel 442 to rotate in turn, so as to drive the worm 443 to rotate, the limit action of the worm wheel 442 and the worm 443 is released, the energy of the spiral spring 7 drives the second transmission shaft 415 to rotate reversely, so as to drive the shutoff chuck 51 to rotate reversely, the valve is closed, so that the original valve is turned off emergently, the air source is cut off remotely in the whole process, the valve can be turned off conveniently and quickly, the safety performance is high, and the turning-off stability is high.

One end of the pull rod 433 penetrates the upper case 11 and extends to the outside of the upper case 11. Therefore, the working state of the interceptor can be obviously judged by the length of the upper shell 11 at the penetrating position of the pull rod 433, thereby facilitating the observation and work of a user.

For the clockwork spring 7, after the operating handle 31 is rotated, the energy of the clockwork spring 7 can be fully charged, at the moment, under the action of the transmission assembly 4, the valve is in an opening state, and the energy of the clockwork spring 7 is released at the later stage, so that the closing of the valve can be realized by combining the transmission assembly 4.

As shown in fig. 5, the rotating member 436 includes a rotating shaft 437 and a driving block 438, the driving block 438 is configured as an H-shaped structure, the pull rod 433 and the limiting rod 434 are respectively located at two ends of the driving block 438 and located inside the driving block 438, and the rotating shaft 437 penetrates through a vertical center line of the driving block 438 and is rotatably connected to the outer housing 431; a first stop lever 4311 is fixedly connected to the pull rod 433, a second stop lever 4312 is fixedly connected to the limiting lever 434, and both the first stop lever 4311 and the second stop lever 4312 are located at the bottom of the driving block 438; a stopper 4313 is fixedly connected to one end of the slide restricting member 43 near the restricting lever 434. Thus, after the pull rod 433 is pulled upwards, the first stop lever 4311 moves upwards to drive one end of the driving block 438, the rotating shaft 437 rotates to drive the other end of the driving block 438 to move downwards, the second stop lever 4312 is pressed to move downwards, and the limiting rod 434 is driven to move downwards, so that the worm 443 can be limited, and the stop 4313 is arranged to fix the limiting rod 434 when the sliding limiting block 432 moves to the position of the limiting rod 434, so that the limiting rod 434 does not move upwards any more.

Cylinder 421, stopper 43, and spring 7 are mounted on second mounting diaphragm 8, and second mounting diaphragm 8 is mounted inside upper case 11. In this way, the second mounting baffle 8 can be arranged to play a supporting role.

The cylinder 421 is provided with an air vent 422. Thus, the air is supplied to the inside of the cylinder 421 through the air vent 422, which is convenient for use.

In the preferred embodiment of the present embodiment, the gear ratio of the first gear 411 to the second gear 413 is 1:1, and the gear ratio of the second gear 413 to the third gear 414 is 48: 19.

As shown in fig. 8 to 9, the shut-off chuck 51 has a circular tube structure with one end not closed, and the shape of the inner wall of the shut-off chuck 51 is adapted to the shape of the outer wall of the valve. The cross section of the inner side wall of the turn-off chuck 51 is designed into a structure formed by combining four arc-shaped surfaces with equal angles, a convex surface is arranged between every two arc-shaped surfaces, and the bending directions of the arc-shaped surfaces and the convex surfaces are opposite. Thus, the shape of the valve is adapted to realize the tightness when the valve is closed.

As shown in fig. 11, the adjusting member 9 includes an outer supporting body 91, an adjusting plate 92 and a torsion spring 93, the outer supporting body 91 is movably disposed on the bracket 6, a plurality of latches 61 are uniformly disposed on the bracket 6 along the height direction thereof, one end of the adjusting plate 92 is rotatably connected to the outer supporting body 91 through a first rotating shaft 94, the other end of the adjusting plate 92 is clamped with the bracket 6 through the latches 61, the middle position of the adjusting plate 92 is rotatably connected to the outer supporting body 91 through a second rotating shaft 95, and the torsion spring 93 is disposed on the second rotating shaft 95. Like this, through pressing the one end that regulating plate 92 is close to first pivot 94 for the regulating plate 92 other end breaks away from with latch 61 on the support 6, can realize the free movement of whole regulating part 92 on support 6, loosen the one end that regulating plate 92 is close to first pivot 94, under the spring action of torsional spring 93, the other end of regulating plate 92 and the latch 61 on the support 6 block again, can realize regulating part 92 and between fixed, thereby the regulation of realization position that can be convenient. As shown in fig. 12, an emergency shutdown detection system for a cylinder valve includes a field detection module, a cloud server, a user side, and a communication network unit, where the field detection module includes a sensor, a controller, and an intelligent positioning unit, the sensor is configured to detect a position of a pull rod 433 to detect a state of an emergency shutdown device for the cylinder valve, transmit a signal to the controller to turn on and off the field detection module, receive and analyze the signal transmitted by the field detection module, and transmit an analysis result to the cloud server through the communication unit, and the intelligent positioning unit is configured to intelligently position the emergency shutdown device for the cylinder valve at different positions; the client is used for acquiring a data link or a control link between the client and the cloud server and between the client and the field detection module, and receiving and displaying detection information sent by the cloud server and the field detection module; and the communication network unit is used for communication service among the on-site detection module, the cloud server side and the user side. Like this, utilize the on-the-spot detection module to detect valve emergency shutdown device's operating condition, through cloud server end and network communication unit with signal transmission to user side, help the user to know the state of the emergency shutdown device who distributes in different positions department to judge the state of valve, with the state of the valve of convenient user's grasp different positions department, thereby the valve of convenient to different positions department overhauls and changes.

The inductor is mounted on the turn-off device body 1 and is located above the pull rod 433. Optionally, the sensor is a distance sensor. Thus, the working state of the emergency shutdown device is judged by detecting the distance between the sensor and the pull rod 433, and the function of remote monitoring is realized.

Example two

The difference between this embodiment and the first embodiment is: as shown in fig. 10, the cross section of the inner wall of the shutoff chuck 51 is a structure formed by combining five equiangular arc-shaped surfaces, and the cross section of the inner wall of the shutoff chuck 51 is a petal-shaped structure as a whole. Therefore, the shutoff chuck 51 can adapt to the installation of different valves, the application range of the shutoff device is expanded, and the universality is strong.

The utility model discloses a concrete implementation principle does: in the initial state, the air source continuously supplies air to the air cylinder 421, the pull rod 433 is pulled upwards, the limiting rod 434 is driven to move towards the worm 443 by the action of the rotating member 436, until the limiting rod 434 is inserted into the limiting hole 446 to limit the operation of the worm 443 and the worm wheel 442, at the same time, the air cylinder 421 is operated to drive the output shaft of the air cylinder 421 to move towards the limiting rod 434, the output shaft of the air cylinder 421 drives the sliding limiting block 432 to move so as to fix the limiting rod 434, then the operating handle 31 is screwed to drive the first gear 411 to rotate and drive the second gear 413 to rotate, then the third gear 414 is driven to rotate, finally the shutoff chuck 51 is driven to rotate, and at the same time of the rotation of the second gear 413, the second gear 413 also drives the fourth transmission shaft 447 and the fifth gear 448 to rotate, the fifth gear 448 is meshed with the fourth gear 445, but at this time, the worm wheel 442 is limited to rotate, the fourth gear 445 is also limited to rotate at the same time, because the fifth gear 448 is rotatably connected with the fourth transmission shaft 447 through the one-way bearing 449, at this time, the fifth gear 448 is in a one-way free rotation state, because the other end of the second transmission shaft 415 is connected with the limit ring 416, the second transmission shaft 415 rotates to drive the limit ring 416 to rotate, the limit ring 416 rotates to the limit rod 417 and is limited to rotate, so that the second transmission shaft 415 cannot freely rotate by 360 degrees, the rotation angle of the turn-off chuck 51 is smaller than 360 degrees, and the valve is opened, at this time, under the common limiting action of the worm wheel 442 and the worm 443, the energy of the clockwork spring 7 is not enough to reversely rotate the second transmission shaft 415, so that the open state of the valve can be always maintained; when an accident such as gas leakage occurs, the gas source stops supplying gas to the cylinder 421, the output shaft of the cylinder 421 is driven to move away from the limit rod 434 by the elastic action of the second return spring 4310, so as to release the fixing of the limit rod 434, then the limit rod 434 is driven to move away from the worm 443 by the elastic action of the first return spring 439, the limit rod 434 is disengaged from the inside of the limit hole 446, the pull rod 433 moves downward by the action of the rotation member 436, at this time, the worm 443 is disengaged from the limit of the limit rod 434, the fifth gear 448 rotates and simultaneously drives the fourth gear 445 to rotate, so as to drive the third transmission shaft 444 and the worm wheel 442 to rotate in turn, so as to drive the worm 443 to rotate, the limit action of the worm wheel 442 and the worm 443 is released, the energy of the spiral spring 7 drives the second transmission shaft 415 to rotate reversely, so as to drive the shutoff chuck 51 to rotate reversely, the valve is closed, so that the original valve is turned off emergently, the air source is cut off remotely in the whole process, the valve can be turned off conveniently and quickly, the safety performance is high, and the turning-off stability is high.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The steel cylinder valve emergency shut-off device is used for realizing emergency shut-off of a valve on a steel cylinder and is characterized by comprising a shut-off device body (1), a valve fixing component (2), an operating component (3), a transmission component (4) and a valve shut-off component (5), wherein the shut-off device body (1) is connected with the valve fixing component (2) through a bracket (6), the operating component (3) is installed on the shut-off device body (1), the transmission component (4) is installed inside the shut-off device body (1), and the operating component (3) is installed on the valve fixing component,

the shutoff device comprises a shutoff device body (1) which is detachably arranged on the bracket (6), and the top of the shutoff device body (1) is rotatably connected with a hanging ring (13);

the valve fixing component (2) comprises a fixing ring (21), connecting screw holes (22) and bolts (23), the fixing ring (21) is fixedly installed at one end, far away from the shutoff device body (1), of the support (6), the fixing ring (21) comprises semi-rings which are separated from each other, the connecting screw holes (22) are respectively formed in the two semi-rings, and the bolts (23) penetrate through the corresponding connecting screw holes (22) in the two semi-rings to fix the valve through the valve fixing component (2);

the operating assembly (3) comprises an operating handle (31), the operating handle (31) is positioned outside the shutoff device body (1), and the operating handle (31) is used for controlling the work of the transmission assembly (4) so as to realize the emergency shutoff of the valve by the valve shutoff assembly (5);

the transmission assembly (4) comprises a mechanical piece (41) and a pneumatic piece (42), the mechanical piece (41) and the pneumatic piece (42) are both installed inside the shutoff device body (1), the pneumatic piece (42) comprises an air cylinder (421), the air cylinder (421) is supplied with air by an air source to realize the work of the air cylinder (421), and the pneumatic piece (42) and the mechanical piece (41) work in a matched mode to drive the valve shutoff assembly (5) to realize the shutoff work of the valve;

the valve shutting assembly (5) is used for shutting a valve and comprises a shutting chuck (51) which is arranged at the position of a valve port of the valve;

when the valve leaks, the air source stops supplying air, and the transmission assembly (4) drives the valve shutoff assembly (5) to start working so as to realize emergency shutoff of the valve.

2. Cylinder valve emergency shut-off device according to claim 1, characterized in that the shut-off device body (1) comprises an upper casing (11) and a lower casing (12), the lower casing (12) being detachably connected to the bracket (6) by means of an adjusting member (9), the upper casing (11) being detachably connected to the lower casing (12).

3. The emergency shut-off device for the steel cylinder valve is characterized in that the mechanical part (41) comprises a first gear (411), the first gear (411) is connected with the operating handle (31) through a first transmission shaft (412), the first gear (411) is in meshed connection with a second gear (413), the second gear (413) is in meshed connection with a third gear (414), the third gear (414) is in transmission connection with a limit ring (416) through a second transmission shaft (415), a shut-off chuck (51) is fixedly connected to one end, far away from the third gear (414), of the second transmission shaft (415), and the shut-off chuck (51) is provided with a limit rod (417) matched with the limit ring (416);

and a clockwork spring (7) is arranged at one end of the first transmission shaft (412) close to the operating handle (31).

4. The cylinder valve emergency shut-off device according to claim 3, wherein the transmission assembly (4) further comprises a limiting member (43) and a limiting member (44), the limiting member (43) comprises an outer shell (431), a sliding limiting block (432), a pull rod (433) and a limiting rod (434), the outer shell (431) is connected with the upper shell (11) through a fixed plate (435), the sliding limiting block (432), the pull rod (433) and the limiting rod (434) are all located inside the outer shell (431), the pull rod (433) penetrates through the outer shell (431) and the fixed plate (435), the pull rod (433) is connected with the limiting rod (434) through a rotating member (436), the rotating member (436) is rotatably connected with the outer shell (431), and a first return spring (439) is arranged outside the limiting rod (434), one side of the sliding limiting block (432) is connected with an output shaft of the air cylinder (421), the sliding limiting block (432) is driven by the air cylinder (421) to move along the length direction of the air cylinder (421) so as to fix the limiting rod (434), and a second return spring (4310) is arranged on the output shaft of the air cylinder (421);

the limiting part (44) comprises a first mounting partition plate (441), a worm wheel (442) and a worm (443), a mounting block is mounted on the first mounting partition plate (441), a worm (443) is rotatably connected to one side of the mounting block, the worm (443) is in transmission connection with the worm wheel (442) at one end far away from the mounting block, the worm wheel (442) is in transmission connection with a fourth gear (445) through a third transmission shaft (444), a limiting hole (446) matched with the limiting rod (434) is formed in one end, far away from the worm wheel (442), of the worm (443), two limiting holes (446) are formed in the limiting hole (446), and the two limiting holes (446) are symmetrical about the horizontal center line of the worm (443);

the first gear (411) is in transmission connection with a fifth gear (448) through a fourth transmission shaft (447), the fifth gear (448) is in rotation connection with the fourth transmission shaft (447) through a one-way bearing (449), and the fifth gear (448) is in meshing connection with the fourth gear (445).

5. Cylinder valve emergency shut-off device according to claim 4, characterised in that the cylinder (421) and the limiting member (43) are mounted on a second mounting diaphragm (8), the second mounting diaphragm (8) being mounted inside the upper casing (11);

and the air cylinder (421) is provided with an air vent (422).

6. The emergency shut-off device for a cylinder valve of claim 4, wherein the rotating member (436) comprises a rotating shaft (437) and a driving block (438), the driving block (438) is configured as an H-shaped structure, the pull rod (433) and the limiting rod (434) are respectively located at two ends of the driving block (438) and located inside the driving block (438), and the rotating shaft (437) penetrates through a vertical center line of the driving block (438) and is rotatably connected to the outer housing (431);

a first stop lever (4311) is fixedly connected to the pull rod (433), a second stop lever (4312) is fixedly connected to the limiting lever (434), and both the first stop lever (4311) and the second stop lever (4312) are located at the bottom of the driving block (438);

a stop block (4313) is fixedly connected to one end, close to the limiting rod (434), of the sliding limiting piece (43);

one end of the pull rod (433) penetrates through the upper shell (11) and extends to the outside of the upper shell (11).

7. The cylinder valve emergency shut-off device according to claim 1, wherein the shut-off chuck (51) is provided with a circular tube type structure with one end being not closed, and the shape of the inner side wall of the shut-off chuck (51) is adapted to the shape of the outer side wall of the valve.

8. The steel cylinder valve emergency shut-off device according to claim 2, wherein the adjusting member (9) comprises an outer support (91), an adjusting plate (92) and a torsion spring (93), the outer support (91) is movably disposed on the support (6), a plurality of latches (61) are uniformly disposed on the support (6) along the height direction of the support, one end of the adjusting plate (92) is rotatably connected to the outer support (91) through a first rotating shaft (94), the other end of the adjusting plate is connected to the support (6) through the latches (61), the middle position of the adjusting plate (92) is rotatably connected to the outer support (91) through a second rotating shaft (95), and the torsion spring (93) is disposed on the second rotating shaft (95).

9. An emergency shutdown detection system for a cylinder valve, comprising the emergency shutdown device for a cylinder valve as claimed in any one of claims 1 to 7, comprising a field detection module, a cloud server, a user terminal and a communication network unit, wherein,

the on-site detection module comprises an inductor, a controller and an intelligent positioning unit, wherein the inductor is used for detecting the position of a pull rod (433) so as to detect the state of the steel cylinder valve emergency shutoff device, transmitting a signal to the controller for opening and closing the on-site detection module, receiving and analyzing the signal transmitted by the on-site detection module, transmitting an analysis result to a cloud server end through a communication network unit, and the intelligent positioning unit is used for intelligently positioning the steel cylinder valve emergency shutoff devices at different positions;

the client is used for acquiring a data link or a control link between the client and the cloud server and between the client and the field detection module, and receiving and displaying detection information sent by the cloud server and the field detection module;

and the communication network unit is used for communication service among the on-site detection module, the cloud server side and the user side.

10. The system as claimed in claim 9, wherein the sensor is mounted on the shut-off device body (1) above the pull rod (433).

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