NB-IoT Gas High-Prepaid Early Warning Control Device and Early Warning Method

Abstract

This invention belongs to the field of gas leak alarm technology, specifically an NB-IoT high-pressure prepaid early warning control device and method for gas use. It includes two hemispherical shells and fixed cylinders connected to the ends of the two hemispherical shells. Fixed plates are provided at the top and bottom of the fixed cylinders, and adjacent fixed plates on different fixed cylinders are connected by bolt threads. This invention uses a threaded shaft to press against the top of the valve knob, thus securing the valve and ensuring its stability. Furthermore, the impeller is closer to the valve. When a high-pressure gas leak occurs at the valve, the high-pressure gas is ejected upwards, driving the nearby impeller to rotate. The impeller drives the threaded shaft to rotate. Since the threaded shaft is threadedly connected to a gantry rod, it rises during rotation. The threaded shaft drives the trigger rod to rotate and rise until the trigger rod presses the unlocked button switch, triggering the alarm and ensuring timely alarm operation.

Description

Technical Field

[0001] This invention belongs to the field of gas leak alarm technology, and specifically relates to an NB-IoT high-pressure prepaid early warning control device and early warning method for gas. Background Technology

[0002] Narrow Band Internet of Things (NB-IoT) has become an important branch of the Internet of Things. Built on cellular networks, NB-IoT consumes only about 180kHz of bandwidth and can be directly deployed on GSM, UMTS, or LTE networks to reduce deployment costs and enable smooth upgrades. NB-IoT technology is increasingly being used in the gas delivery sector, enabling rapid detection of gas consumption data, electricity consumption, signals, valve status, and abnormal conditions.

[0003] Before gas is delivered to households, it is under high pressure to ensure efficiency when the gas is delivered over long distances. As a result, the main valves at the connection points between the main gas pipeline and each branch pipeline are under pressure from the high-pressure gas, which can easily cause leaks and prevent timely alarm processing.

[0004] Therefore, it is necessary to invent an NB-IoT high-pressure prepaid early warning control device and early warning method for gas to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an NB-IoT high-pressure prepaid early warning control device and early warning method for gas, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an NB-IOT high-pressure prepaid early warning control device for gas, comprising two hemispherical shells and a fixed cylinder connected to the ends of the two hemispherical shells. The fixed cylinder is provided with a fixed plate at the top and bottom. Two adjacent corresponding fixed plates on different fixed cylinders are connected by bolt threads. A portion of the top of the two hemispherical shells is cut transversely to form an opening so that the gas valve can leak out. The top of the two hemispherical shells is provided with the same portal rod. One end of the portal rod is rotatably connected to one of the hemispherical shells, and the other end is inserted into the top of the other hemispherical shell.

[0007] A threaded shaft is threadedly connected to the center of the horizontal section of the portal frame. A blade is provided at the top of the threaded shaft. A trigger rod is threadedly connected to the surface of the threaded shaft. An installation rod is provided at the top of the portal frame. An unlocking button switch is provided on the surface of the installation rod. The unlocking button switch matches the trigger rod. An alarm is electrically connected to the terminal of the unlocking button switch.

[0008] Preferably, both hemispherical shells are horizontally slidably connected to safety buckles. The safety buckles are U-shaped, and the bottom of the horizontal section of the top of the safety buckle is provided with a suction bar. The suction bars on the two safety buckles are in a magnetic adsorption state so that the bottom of the safety buckle is directly above the valve. The bottom of the threaded shaft is rotatably sleeved with a rotating tube. A connecting rod is provided on the outer cylindrical surface of the rotating tube. Both connecting rods are provided with a main suction bar. The distance from the main suction bar to the threaded shaft is farther than that from the suction bar. After the safety buckle pops open, the unlocked button switch is driven to a position that the trigger rod can touch, preventing accidental contact with the unlocked button switch and triggering a false alarm.

[0009] Preferably, a ⊥-shaped disk is threaded into the bottom end of the threaded shaft. The bottom end of the ⊥-shaped disk is shaped like a frustum. Hinged rods are embedded on both sides of the ⊥-shaped disk. The bottom end of the hinged rods is hinged to the ⊥-shaped disk. The length of the hinged rods is greater than the radius of the bottom end of the ⊥-shaped disk.

[0010] Preferably, the bottom of the ⊥-shaped disk is provided with a contact pad, and a steel ball is embedded in the outer edge of the inner part of the contact pad.

[0011] Preferably, the inner wall of the fixing cylinder is provided with a sealing pad, which is made of fabric material.

[0012] Preferably, the alarm is fitted with a sound-emitting cover on the outside, the bottom end of the sound-emitting cover is inserted into the gate-shaped rod, and a vertical spring is provided between the sound-emitting cover and the gate-shaped rod. A main repulsion block is provided on the top of the sound-emitting cover, and a secondary repulsion block is provided on the surface of the threaded shaft. The main repulsion block generates a downward repulsion force on the secondary gear, so that the vertical spring is in a compressed state. A sound-emitting hole is provided on the surface of the sound-emitting cover.

[0013] Preferably, a crossbar is fixedly connected to the rear side of the free end of the portal frame rod, and a right-angled groove is provided on the top of the hemispherical shell at its bottom for placing the free end of the portal frame rod and the crossbar. The horizontal section of the right-angled groove is lower than the vertical section, and the length of the vertical section of the right-angled groove in the front-to-back direction is greater than the sum of the end face diameter of the portal frame rod and the length of the crossbar, so that the free end of the portal frame rod and the crossbar first enter through the vertical section of the right-angled groove, and then the crossbar completely occupies the horizontal section of the right-angled groove.

[0014] Preferably, the present invention also provides a method for issuing early warnings using any of the above-mentioned NB-IoT high-pressure prepaid early warning control devices for gas, the method comprising the following steps:

[0015] Step 1: Place the two hemispherical shells over the front and rear sides of the valve, and fix the fixing cylinder to the pipeline with bolts;

[0016] Step 2: The high-pressure gas is ejected upwards, driving the nearby blades to rotate. The blades drive the threaded shaft to rotate, which in turn drives the trigger rod to rotate and rise, and also drives the connecting rod and the main suction bar at its end to rise.

[0017] Step 3: The main suction bar is attracted by the corresponding secondary suction bar above it and is in a vertically rising state without rotating. Then, as the distance between the main suction bar and the secondary suction bar gets closer and closer, the magnetic force between them will cause the safety buckles to move to both sides, thereby causing the two safety buckles to separate and pop open.

[0018] Step 4: When the trigger lever reaches the unlock button switch, it will press and trigger the unlock button switch, which will then control the alarm that is electrically connected to it.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention uses the bottom end of the threaded shaft to press against the top of the valve knob, which can tighten and fix the valve, ensuring its stability. The blade is also closer to the valve. When a high-pressure gas leak occurs at the valve, the high-pressure gas will be ejected upwards, thereby driving the nearby blade to rotate. The blade drives the threaded shaft to rotate. Since the threaded shaft is threadedly connected to the gantry rod, the threaded shaft rises when it rotates. The threaded shaft drives the trigger rod to rotate and rise until the trigger rod presses the unlocked button switch to trigger the alarm, ensuring the timeliness of the alarm.

[0021] 2. This invention utilizes the safety buckle to position it at the top of the valve, preventing it from loosening due to impacts from objects. When the threaded shaft rises under the influence of high-pressure gas, it drives the connecting rod and the main suction bar at its end to rise. The main suction bar is attracted by the corresponding secondary suction bar above it and remains vertically rising without rotation. Subsequently, as the distance between the main suction bar and the secondary suction bar gets closer, the magnetic force between them causes the safety buckle to move to both sides, thus separating and popping open the two safety buckles, facilitating subsequent knob operation of the valve.

[0022] 3. The present invention uses a sound-emitting cover to shield the alarm from dust. When the paddle rotates and drives the threaded shaft to rise, the repulsive block on the surface of the threaded shaft rises, and the repulsive force on the main repulsive block at the top of the sound-emitting cover gradually weakens, thereby restoring the vertical spring and pushing the sound-emitting cover to rise. When the sound-emitting cover rises, the sound emitted by the alarm first passes through the sound hole. As the sound-emitting cover gradually exposes the alarm, the sound gradually intensifies, resulting in a better alarm effect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional schematic diagram of the NB-IoT high-pressure prepaid early warning control device for gas used in this invention;

[0025] Figure 2 In this invention Figure 1 Enlarged view of part A;

[0026] Figure 3 In this invention Figure 1 A schematic diagram from one of the angles;

[0027] Figure 4 This is a sectional view of the main face of the threaded shaft in this invention;

[0028] Figure 5 This is a flowchart of the early warning method of the present invention.

[0029] In the diagram: 1. Hemispherical shell; 2. Fixed cylinder; 3. Fixed plate; 4. Gate-shaped rod; 5. Threaded shaft; 6. Paddle blade; 7. Trigger rod; 8. Mounting rod; 9. Lockless push-button switch; 10. Safety buckle; 11. Suction strip; 12. Connecting rod; 13. Main suction strip; 14. U-shaped disc; 15. Hinge rod; 16. Contact pad; 17. Sound cover; 18. Vertical spring; 19. Main repulsion block; 20. Spur repulsion block; 21. Right-angle groove. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] This invention provides, for example Figure 1-4The NB-IOT high-pressure prepaid early warning control device for gas shown includes two hemispherical shells 1 and a fixed cylinder 2 connected to the ends of the two hemispherical shells 1. The inner wall of the fixed cylinder 2 is provided with a sealing pad made of fabric material. The sealing pad can make the fixed cylinder 2 contact the pipe more tightly and prevent the fixed cylinder 2 from loosening on the pipe. The top and bottom of the fixed cylinder 2 are provided with a fixing plate 3. Two adjacent corresponding fixing plates 3 on different fixed cylinders 2 are connected by bolt threads. A part of the top of the two hemispherical shells 1 is cut horizontally to form an opening so that the gas valve can leak out. The top of the two hemispherical shells 1 is provided with the same gate rod 4. One end of the gate rod 4 is rotatably connected to one of the hemispherical shells 1, and the other end is inserted into the top of the other hemispherical shell 1.

[0033] A threaded shaft 5 is threadedly connected to the center of the horizontal section of the portal rod 4. A paddle 6 is provided at the top of the threaded shaft 5. A trigger rod 7 is threadedly connected to the surface of the threaded shaft 5. An installation rod 8 is provided at the top of the portal rod 4. An unlocking button switch 9 is provided on the surface of the installation rod 8. The unlocking button switch 9 matches the trigger rod 7. An alarm is electrically connected to the terminal of the unlocking button switch 9.

[0034] During the existing modification, two hemispherical shells 1 can be placed over the front and rear sides of the valve, and the fixing cylinder 2 can be fixed to the pipeline with bolts. This allows the alarm to be installed on top of the valve. Tightening the threaded shaft 5 so that the bottom end of the threaded shaft 5 presses against the top of the valve knob can provide a clamping and fixing effect on the valve, ensuring its stability. Furthermore, the blade 6 is closer to the valve. When a high-pressure gas leak occurs at the valve, the high-pressure gas will be ejected upwards, driving the nearby blade 6 to rotate. The blade 6 then drives the threaded shaft 5 to rotate. Since the threaded shaft 5 is threadedly connected to the portal rod 4... Therefore, when the threaded shaft 5 rotates, it rises, which drives the trigger rod 7 to rotate and rise until the trigger rod 7 reaches the unlocked button switch 9, which will press and trigger the unlocked button switch 9. The unlocked button switch 9 controls the alarm that is electrically connected to it to work, thereby alarming the relevant personnel and ensuring the timeliness of the alarm. In addition, since the bottom end of the threaded shaft 5 is driven to rise by the impact force of the gas, personnel can directly turn the valve to eliminate the danger when handling the crisis. The alarm is powered by a battery, thus ensuring that the whole set of equipment does not need to be connected to the mains power.

[0035] Refer to the instruction manual appendix Figure 1-3Safety buckles 10 are horizontally slidably connected to the top of both hemispherical shells 1. The safety buckles 10 are U-shaped, and a suction strip 11 is provided at the bottom of the horizontal section of the top of the safety buckle 10. The suction strips 11 on the two safety buckles 10 are in a magnetic adsorption state so that the bottom of the safety buckle 10 is directly above the valve. A rotating tube is rotatably sleeved at the bottom of the threaded shaft 5. A connecting rod 12 is provided on the outer cylindrical surface of the rotating tube. A main suction strip 13 is provided on the surface of both connecting rods 12. The distance from the main suction strip 13 to the threaded shaft 5 is farther than that from the suction strip 11.

[0036] The safety latch 10 is positioned at the top of the valve to prevent it from loosening due to impacts from objects. When the threaded shaft 5 rises under the influence of high-pressure gas, it drives the connecting rod 12 and the main suction bar 13 at its end to rise. The main suction bar 13 is attracted by the corresponding secondary suction bar 11 above it and remains vertically upright without rotation. Subsequently, as the distance between the main suction bar 13 and the secondary suction bar 11 gets closer, the magnetic force between them causes the safety latch 10 to move to both sides, thus separating and popping open the two safety latches 10, facilitating subsequent knob operation of the valve.

[0037] Refer to the instruction manual appendix Figure 2 and Figure 4 The bottom end of the threaded shaft 5 is threaded with a ⊥-shaped disk 14. The bottom end of the ⊥-shaped disk 14 is shaped like a frustum. Hinged rods 15 are embedded on both sides of the ⊥-shaped disk 14. The bottom end of the hinged rods 15 is hinged to the ⊥-shaped disk 14. The length of the hinged rods 15 is greater than the radius of the bottom end of the ⊥-shaped disk 14.

[0038] When it is necessary to remove the threaded shaft 5 from the portal rod 4, the trigger rod 7 can be unscrewed from the threaded shaft 5 first. Then, fix the ⊥-shaped disc 14 and screw the threaded shaft 5 to separate the ⊥-shaped disc 14 from the threaded shaft 5. Finally, screw the threaded shaft 5 off the portal rod 4. Due to the presence of the ⊥-shaped disc 14, the ⊥-shaped disc 14 can be pressed against the top of the valve while shortening the threaded shaft 5. The ⊥-shaped disc 14 can also be quickly separated from the threaded shaft 5, reducing the number of turns of the threaded shaft 5 on the portal rod 4 and improving work efficiency. At the same time, the ⊥-shaped disc 14 can be fixed more tightly through the hinge rod 15, making it easier to separate the ⊥-shaped disc 14 from the threaded shaft 5 when screwing. The blocking effect of the ⊥-shaped disc 14 on the rotating pipe facilitates the subsequent disassembly of the rotating pipe.

[0039] Refer to the instruction manual appendix Figure 2 The bottom end of the ⊥-shaped disk 14 is provided with a contact pad 16, and a steel ball is embedded in the outer edge of the contact pad 16.

[0040] The contact pad 16 provides better pressure on the top of the valve. With steel balls inside the contact pad 16, the steel balls are located directly below the bottom edge of the U-shaped disc 14, and the diameter of the circle formed by the centers of all the steel balls is larger than the diameter of the bottom of the U-shaped disc 14. This causes the steel balls to be squeezed outward when the U-shaped disc 14 presses against the contact pad 16, thus tightening the contact pad 16 and improving the fit between the contact pad 16 and the top of the valve.

[0041] Refer to the instruction manual appendix Figure 1-3 The alarm is fitted with a sound cover 17 on the outside. The bottom end of the sound cover 17 is inserted into the gate rod 4. A vertical spring 18 is provided between the sound cover 17 and the gate rod 4. A main repulsion block 19 is provided on the top of the sound cover 17. A secondary repulsion block 20 is provided on the surface of the threaded shaft 5. The main repulsion block 19 generates a downward repulsion force on the secondary gear so that the vertical spring 18 is in a compressed state. A sound hole is provided on the surface of the sound cover 17.

[0042] The sound cover 17 can shield the alarm from dust. When the paddle 6 rotates and drives the threaded shaft 5 to rise, the repulsion block 20 on the surface of the threaded shaft 5 rises, and the repulsion force on the main repulsion block 19 at the top of the sound cover 17 gradually weakens, thereby restoring the vertical spring 18 and pushing the sound cover 17 to rise. When the sound cover 17 rises, the sound emitted by the alarm first passes through the sound hole. As the sound cover 17 gradually exposes the alarm, the sound gradually intensifies, resulting in a better alarm effect.

[0043] Refer to the instruction manual appendix Figure 1 A crossbar is fixedly connected to the rear side of the free end of the portal rod 4, and a right-angled groove 21 is provided on the top of the hemispherical shell 1 at its bottom for placing the free end of the portal rod 4 and the crossbar. The horizontal section of the right-angled groove 21 is lower than the vertical section. The length of the vertical section of the right-angled groove 21 in the front-to-back direction is greater than the sum of the end diameter of the portal rod 4 and the length of the crossbar, so that the free end of the portal rod 4 and the crossbar first enter through the vertical section of the right-angled groove 21, and then the crossbar completely occupies the horizontal section of the right-angled groove 21.

[0044] When the two hemispherical shells 1 are brought close together, the crossbar is inserted into the horizontal section of the right-angle slot 21. The top of the crossbar can be blocked by the top of the corresponding hemispherical shell 1, so the above-mentioned arrangement can facilitate the separation of the two hemispherical shells 1. After the two hemispherical shells 1 are attached and fixed together, the two ends of the portal rod 4 are fixed by the two hemispherical shells 1 respectively, thereby improving the stability of the portal rod 4 and preventing the high-pressure gas from bending the portal rod 4 from its rotating end.

[0045] Refer to the instruction manual appendix Figure 5 The present invention also provides a method for issuing early warnings using any of the above-mentioned NB-IoT high-pressure prepaid early warning control devices for gas, the method comprising the following steps:

[0046] Step 1: Place the two hemispherical shells 1 over the front and rear sides of the valve, and fix the fixing cylinder 2 to the pipeline with bolts;

[0047] Step 2: The high-pressure gas is ejected upwards, driving the nearby blade 6 to rotate. The blade 6 drives the threaded shaft 5 to rotate, and the threaded shaft 5 drives the trigger rod 7 to rotate and rise, and also drives the connecting rod 12 and the main suction bar 13 at its end to rise.

[0048] Step 3: The main suction bar 13 is attracted by the corresponding secondary suction bar 11 above it and is in a vertically rising state without rotating. Then, as the distance between the main suction bar 13 and the secondary suction bar 11 gets closer and closer, the magnetic force between the two will cause the safety buckle 10 to move to both sides, thereby causing the two safety buckles 10 to separate and pop open.

[0049] Step 4: When the trigger lever 7 reaches the unlock button switch 9, it will press and trigger the unlock button switch 9, which will then control the alarm that is electrically connected to it.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An NB-IoT high-pressure prepaid early warning control device for gas, characterized in that: It includes two hemispherical shells (1) and a fixed cylinder (2) connected to the ends of the two hemispherical shells (1). The top and bottom of the fixed cylinder (2) are provided with a fixed plate (3). Two adjacent corresponding fixed plates (3) on different fixed cylinders (2) are connected by bolt threads. A portion of the top of the two hemispherical shells (1) is cut horizontally to form an opening so that the gas valve is exposed. The top of the two hemispherical shells (1) is provided with the same portal rod (4). One end of the portal rod (4) is rotatably connected to one of the hemispherical shells (1), and the other end is inserted into the top of the other hemispherical shell (1). A threaded shaft (5) is threaded at the center of the horizontal section of the portal rod (4). A blade (6) is provided at the top of the threaded shaft (5). A trigger rod (7) is threaded on the surface of the threaded shaft (5). An installation rod (8) is provided at the top of the portal rod (4). A lock-free button switch (9) is provided on the surface of the installation rod (8). The lock-free button switch (9) matches the trigger rod (7). An alarm is electrically connected to the terminal of the lock-free button switch (9). Safety buckles (10) are horizontally slidably connected to the top of both hemispherical shells (1). The safety buckles (10) are U-shaped, and a suction bar (11) is provided at the bottom of the horizontal section of the top of the safety buckle (10). The suction bars (11) on the two safety buckles (10) are in a magnetic adsorption state so that the bottom of the safety buckle (10) is located directly above the valve. A rotating tube is rotatably sleeved at the bottom of the threaded shaft (5). A connecting rod (12) is provided on the outer cylindrical surface of the rotating tube. A main suction bar (13) is provided on the surface of both connecting rods (12). The distance from the main suction bar (13) to the threaded shaft (5) is farther than that from the suction bar (11).

2. The NB-IoT high-pressure prepaid early warning control device for gas as described in claim 1, characterized in that: The bottom end of the threaded shaft (5) is threaded with a ⊥-shaped disk (14). The bottom end of the ⊥-shaped disk (14) is shaped like a frustum. Hinged rods (15) are embedded on both sides of the ⊥-shaped disk (14). The bottom end of the hinged rods (15) is hinged to the ⊥-shaped disk (14). The length of the hinged rods (15) is greater than the radius of the bottom end of the ⊥-shaped disk (14).

3. The NB-IoT high-pressure prepaid early warning control device for gas as described in claim 2, characterized in that: The bottom of the ⊥-shaped disk (14) is provided with a contact pad (16), and a steel ball is embedded in the outer edge of the inner part of the contact pad (16).

4. The NB-IoT high-pressure prepaid early warning control device for gas as described in claim 1, characterized in that: The inner wall of the fixed cylinder (2) is provided with a sealing pad, which is made of fabric material.

5. The NB-IoT high-pressure prepaid early warning control device for gas as described in claim 1, characterized in that: The alarm is fitted with a sound cover (17) on the outside. The bottom end of the sound cover (17) is inserted into the gate rod (4). A vertical spring (18) is provided between the sound cover (17) and the gate rod (4). A main repulsion block (19) is provided on the top of the sound cover (17). A secondary repulsion block (20) is provided on the surface of the threaded shaft (5). When the blade (6) rotates and drives the threaded shaft (5) to rise, the secondary repulsion block (20) on the surface of the threaded shaft (5) rises, and the repulsive force on the main repulsion block (19) on the top of the sound cover (17) gradually weakens, thereby restoring the vertical spring (18). A sound hole is provided on the surface of the sound cover (17).

6. The NB-IoT high-pressure prepaid early warning control device for gas as described in claim 1, characterized in that: The free end of the portal rod (4) is fixedly connected to a crossbar, and the top of the hemispherical shell (1) at its bottom is provided with a right-angle groove (21) for placing the free end of the portal rod (4) and the crossbar. The horizontal section of the right-angle groove (21) is lower than the vertical section. The length of the vertical section of the right-angle groove (21) in the front-back direction is greater than the sum of the end face diameter of the portal rod (4) and the length of the crossbar, so that the free end of the portal rod (4) and the crossbar first enter through the vertical section of the right-angle groove (21), and then the crossbar completely occupies the horizontal section of the right-angle groove (21).

7. A method for issuing early warnings using the NB-IoT high-pressure prepaid early warning control device for gas as described in any one of claims 1-6, characterized in that: The method includes the following steps: Step 1: Place the two hemispherical shells (1) over the front and rear sides of the valve, and fix the fixed cylinder (2) to the pipeline with bolts; Step 2: The high-pressure gas is ejected upwards, driving the nearby blade (6) to rotate. The blade (6) drives the threaded shaft (5) to rotate. The threaded shaft (5) drives the trigger rod (7) to rotate and rise, and also drives the connecting rod (12) and the main suction bar (13) at its end to rise. Step 3: The main suction bar (13) is attracted by the corresponding secondary suction bar (11) above it and is in a vertically rising state without rotating. Then, as the distance between the main suction bar (13) and the secondary suction bar (11) gets closer and closer, the magnetic force between the two will cause the safety buckle (10) to move to both sides, thereby causing the two safety buckles (10) to separate and pop open. Step 4: When the trigger lever (7) reaches the unlock button switch (9), it will press the unlock button switch (9) to trigger it. The unlock button switch (9) controls the alarm that is electrically connected to it to work.

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