A leak detection device and a leak detection method for manufacturing PRO gas cylinders

Abstract

The invention discloses a leak detection device and a leak detection method for manufacturing PRO gas cylinders, comprising a detection box, both sides of the interior of the detection box are movably connected with fixed frames, the bottom ends of the two fixed frames are fixedly connected with an operation box, the operation box comprises a bag net, a movable groove and a dust collecting box, the bag net is located at the top of the movable groove, the dust collecting box is located at the bottom of the movable groove, the inner wall of the movable groove is movably connected with a draw box, the top of the draw box is provided with a water storage tank, the adjacent sides of the two fixed frames are movably connected with a rotating shaft, the adjacent ends of the two rotating shafts are fixedly connected with a storage barrel, and the outer wall of the storage barrel is provided with a plurality of discharge ports. The invention discloses a leak detection device and a leak detection method for manufacturing PRO gas cylinders, when the storage barrel is pushed to move, the movable wheel contacts the airbag, and the pinballs placed in the airbag are of different sizes and heights, thereby driving the storage barrel to bump while moving, and evenly sprinkling the dust of the internal device onto the bag net to achieve the effect of uniform discharge.

Description

Technical Field

[0001] The invention relates to a leak detection device, in particular to a leak detection device and a leak detection method for manufacturing PRO gas cylinders. Background Art

[0002] PRO gas cylinders are steel cylinders for storing high-pressure oxygen, coal gas, liquefied petroleum gas, etc. Gas cylinders generally contain permanent gas, liquefied gas or mixed gas. Gas cylinders are divided into steel seamless gas cylinders, steel welded gas cylinders and wrapped glass fiber gas cylinders. Steel seamless gas cylinders are made of steel billets, which are made by stamping and stretching, or made of seamless steel pipes, which are made by hot spinning and closing the bottom. The cylinder body material is killed steel smelted in an alkaline open hearth, electric furnace or oxygen-blown alkaline converter, such as high-quality carbon steel, manganese steel, chrome-molybdenum steel or other alloy steels. It is used to contain permanent gas (compressed gas) and high-pressure liquefied gas. During the production of gas cylinders, they need to be leak tested before they can be put into the market.

[0003] However, the existing leak detection device for manufacturing PRO gas cylinders is not well-structured and still has certain defects:

[0004] 1. When inspecting gas cylinders, operators usually perform manual inspections directly, which not only affects the inspection efficiency, but also increases a lot of inspection time. If the leak on the outer wall is too small, it is difficult to detect, which greatly affects the inspection efficiency.

[0005] 2. When using the device for detection, it is usually necessary to fix the gas cylinder and detect the outer wall by rotating it. Since the gas cylinder is long, if the outer wall is not supported when it is fixed, it is easy to fall over during the rotation detection, causing damage to the gas cylinder.

[0006] 3. The requirements for the environment when testing air tightness are relatively high. If the gas cylinder contains harmful gases, the operator needs to wear a special mask during the test. The gas cylinder testing task is heavy, and wearing a mask for a long time can easily affect the operation. However, if the operator inhales the gas without precautions, it will cause great harm to himself. Summary of the invention

[0007] The object of the present invention is to provide a leak detection device and a leak detection method for manufacturing PRO gas cylinders to solve the problems of low detection efficiency, easy tipping of gas cylinders during rotation, and waste gas recovery mentioned in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a leak detection device for manufacturing PRO gas cylinders, comprising a detection box, both sides of the interior of the detection box are movably connected with fixed frames, the bottom ends of the two fixed frames are fixedly connected with an operation box, the operation box comprises a bag net, a movable groove and a dust collecting box, the bag net is located at the top of the movable groove, the dust collecting box is located at the bottom of the movable groove, the inner wall of the movable groove is movably connected with a pumping box, the top of the pumping box is provided with a water storage tank, the adjacent sides of the two fixed frames are movably connected with a rotating shaft, the adjacent ends of the two rotating shafts are fixedly connected with a storage barrel, the outer wall of the storage barrel is provided with a plurality of discharge ports, the non-adjacent ends of the two rotating shafts are fixedly connected with movable wheels, the bottoms of the inner walls of the two fixed frames are fixedly connected with air bags, and the inner walls of the two air bags are movably connected with a plurality of pinballs; a motor is fixedly installed in the middle of the back of the detection box, the output end of the motor is fixedly connected with a fixing rod, and the fixing rod The cam is provided with a plurality of auxiliary wheels, and the outer walls of the plurality of auxiliary wheels are fixedly provided with protective pads. A movable shaft is movably connected to the two sides of the two clamps, and a movable rod is fixedly connected to the two non-adjacent sides of the movable shafts. The top ends of the two adjacent movable rods are fixedly connected with a brush rod, and the bottom ends of the two brush rods are fixedly provided with a plurality of bristles. A fan is provided on one side of the outer wall of the detection box, and the output end of the fan is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly penetrated by a filter box, one side of the inner wall of the filter box is movably connected with honeycomb activated carbon, and the other side of the inner wall of the filter box is clamped and connected with a filter screen, and a guide fan is fixedly installed in the middle of the filter screen, and an air suction pipe is fixedly penetrated at the other end of the filter box, and one end of the air suction pipe is fixedly penetrated with the bottom of one side of the detection box.

[0009] As a preferred technical solution of the present invention, slide grooves are provided in the middle of both sides of the inner wall of the detection box, and the non-adjacent sides of the two fixing frames are slidably connected to the inner wall of the slide groove.

[0010] As a preferred technical solution of the present invention, an extension rod is fixedly connected to the middle of one end of the drawer box, and one end of the extension rod is rotatably connected to a limiting rod.

[0011] As a preferred technical solution of the present invention, connecting rods are fixedly connected to both sides of the two movable wheels, the outer walls of the two adjacent connecting rods are movably penetrated by one end of the fixed frame, and one end of the two adjacent connecting rods is fixedly connected to a push plate.

[0012] As a preferred technical solution of the present invention, a plurality of springs are fixedly connected to the inner wall of the fixed cylinder, one end of each of the springs is fixedly connected to a fixed plate, and an anti-slip pad is fixedly connected to the outer walls of each of the fixed plates.

[0013] As a preferred technical solution of the present invention, a plurality of fan blades are fixedly provided on the outer wall of the fan guide, and a plurality of air guide holes are opened on the outer walls of the plurality of fan blades.

[0014] As a preferred technical solution of the present invention, a box door is movably connected to one side of the front of the detection box, and a plurality of control buttons are fixedly provided on the front of the box door. The motor and the fan are electrically connected to an external power supply through the provided control buttons respectively.

[0015] As a preferred technical solution of the present invention, the net, the movable groove and the dust collection box are all set through, the outer walls of the two movable wheels are in contact with adjacent air bags, the movable wheels move on the air bags and come into contact with the pinballs to cause bumps, and the storage barrel sprays the dust evenly onto the net through the discharge port during the rotation process to prepare for detection.

[0016] As a preferred technical solution of the present invention, the plurality of fixing plates clamp one end of the PRO gas cylinder, the two groups of auxiliary wheels are in contact with the outer wall of the PRO gas cylinder to assist the rotation of the gas cylinder, and the two groups of bristles can brush away impurities on the surface of an adjacent group of auxiliary wheels.

[0017] As a preferred technical solution of the present invention, the filter can block impurities inside the detection box, and the rotation of the fan guide drive the wind to evenly disperse and enter the filter box through the air guide holes. The honeycomb activated carbon can effectively and evenly filter the leaked harmful gases. When the honeycomb activated carbon needs to be replaced, the filter is first disassembled and then directly taken out for replacement.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention provides a leak detection device and a leak detection method for manufacturing PRO gas cylinders. Through the cooperation of a bag net, a material storage barrel and a movable wheel, when the material storage barrel is pushed to move, the movable wheel contacts the airbag. The marbles placed in the airbag are of different sizes and heights, thereby driving the material storage barrel to bump while moving, and evenly sprinkling the dust in the internal device onto the bag net to achieve a uniform discharge effect; through the cooperation of a bag net, a pumping box, a water storage tank and a dust collection box, when the gas cylinder rotates on the bag net, the leaked gas is ejected and drives the airflow to blow off the colored powder, which falls into the water storage tank of the pumping box and quickly merges with the internal water source, causing the water source to change color quickly, thereby achieving the effect of judging whether the gas cylinder is leaking by observing the color of the water quality in the water storage tank.

[0020] 2. The present invention provides a leak detection device and a leak detection method for manufacturing PRO gas cylinders. By setting the cooperation of a clamp and an auxiliary rotating wheel, when one end of the gas cylinder is clamped and rotated, the middle part can be auxiliary supported by the set clamp to achieve the effect of stable rotation. The protective pad set on the auxiliary rotating wheel can protect the bottle body of the gas cylinder to prevent the bottle body from being scratched due to excessive contact area. Through the cooperation between the set movable rod and the brush rod and bristles, the dust and impurities on the auxiliary rotating wheel can be effectively cleaned, thereby ensuring that the auxiliary rotating wheel can be kept clean in real time.

[0021] 3. The present invention provides a leak detection device and a leak detection method for manufacturing PRO gas cylinders. A filter box, honeycomb activated carbon and a connecting pipe are provided so that the gas can be recovered and processed after the leaked gas is detected to prevent the internal gas from being harmful to the operator. The filter screen cooperates with the ventilator fan to break up the gas with the assistance of the rotating force of the ventilator fan before the gas enters the filter box, so that the gas is dispersed into the honeycomb activated carbon, thereby achieving the maximum utilization effect of the honeycomb activated carbon and preventing the gas from entering the honeycomb activated carbon only in one direction, thereby causing uneven filtration of the honeycomb activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the operation box in the present invention;

[0024] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a fixing frame in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the clamp in the present invention;

[0026] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0027] Figure 6 A schematic diagram of the structure of the motor and the fixed cylinder in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the filter box, honeycomb activated carbon and filter screen in the present invention.

[0029] In the figure: 1. detection box; 2. fixed frame; 3. operation box; 4. net; 5. movable groove; 6. dust collection box; 7. extraction box; 8. water storage tank; 9. extension rod; 10. limit rod; 11. storage barrel; 12. discharge port; 13. rotating shaft; 14. connecting rod; 15. push plate; 16. movable wheel; 17. air bag; 18. pinball; 19. motor; 20. fixed rod; 21. fixed cylinder; 22. fixed plate; 23. clamp; 24. auxiliary rotating wheel; 25. movable shaft; 26. movable rod; 27. brush rod; 28. brush hair; 29. ​​fan; 30. connecting pipe; 31. filter box; 32. honeycomb activated carbon; 33. filter screen; 34. fan. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1-Figure 3As shown, a leak detection device and a leak detection method for manufacturing PRO gas cylinders include a detection box 1, both sides of the detection box 1 are movably connected with fixed frames 2, the bottom ends of the two fixed frames 2 are fixedly connected with an operation box 3, the operation box 3 includes a bag net 4, a movable groove 5 and a dust collection box 6, the bag net 4 is located at the top of the movable groove 5, the dust collection box 6 is located at the bottom of the movable groove 5, the inner wall of the movable groove 5 is movably connected with a pumping box 7, the top of the pumping box 7 is provided with a water storage tank 8, the adjacent sides of the two fixed frames 2 are movably connected with a rotating shaft 13, the adjacent ends of the two rotating shafts 13 are fixedly connected with a storage barrel 11, and the outer wall of the storage barrel 11 is provided with a plurality of discharge ports. The two rotating shafts 13 are fixedly connected to the bottom of the inner wall of the two fixed frames 2 with a movable wheel 16, and the bottom of the inner wall of the two fixed frames 2 is fixedly connected with an air bag 17. The inner walls of the two air bags 17 are movably connected with a plurality of marbles 18. Through the cooperation of the bag net 4, the storage barrel 11 and the movable wheel 16, when the storage barrel 11 is pushed to move, the movable wheel 16 contacts the air bag 17, and the marbles 18 placed in the air bag 17 are uneven in size, thereby driving the storage barrel 11 to bump while moving, and the dust of the internal device is evenly sprinkled on the bag net 4 to achieve the effect of uniform discharge; by setting the bag net 4, the pumping box 7, the water tank 8 and the dust collection The cooperation of the box 6 allows the leaked gas to drive the airflow to blow the colored powder off when the gas cylinder rotates on the bag net 4, and the colored powder falls into the water storage tank 8 of the extraction box 7 and quickly merges with the internal water source, so that the water source quickly changes color, so as to achieve the effect of judging whether the gas cylinder is leaking by observing the color of the water quality in the water storage tank 8. The middle part of the inner wall of the detection box 1 is provided with a slide groove, and the non-adjacent sides of the two fixed frames 2 are slidably connected to the inner wall of the slide groove. The cooperation of the fixed frame 2 and the rotating shaft 13 can drive the storage barrel 11 to roll in the fixed frame 2. The middle part of one end of the extraction box 7 is fixedly connected with an extension rod 9, and one end of the extension rod 9 is rotatably connected to the limit rod 10. The cooperation between the rod 9 and the limiting rod 10 can limit and pull the draw box 7. The two sides of the two movable wheels 16 are fixedly connected with connecting rods 14. The outer walls of the two adjacent connecting rods 14 are movably penetrated with one end of the fixed frame 2. One end of the two adjacent connecting rods 14 is fixedly connected with a push plate 15. The bag net 4 and the movable groove 5 and the dust collection box 6 are all penetrated. The outer walls of the two movable wheels 16 are in contact with the adjacent air bags 17. The movable wheel 16 moves on the air bags 17 and contacts with the pinball 18 to cause bumps. During the rotation and movement, the storage barrel 11 sprays the dust evenly onto the bag net 4 through the discharge port 12 to prepare for detection.

[0033] When used specifically, the present invention provides a leak detection device and method for manufacturing PRO gas cylinders. First, open the door of the detection box 1, clamp one end of the gas cylinder to be detected with the fixing plate 22 provided on the inner wall of the fixing tube 21, pull the extension rod 9 to draw out the drawer box 7, and then roll the storage barrel 11, push the push plate 15 and the connecting rod 14, and drive the rotating shaft 13 and the storage barrel 11 to move. When the movable wheel 16 in the fixed frame 2 contacts with the airbag 17, because the airbag 17 is in a deflated state, the pinballs 18 placed in the airbag 17 are of different sizes and heights, thereby driving the storage barrel 11 to bump while moving, thereby driving the colored dust in the internal device to be evenly sprinkled onto the bag net 4 through the discharge port 12 to achieve the effect of uniform discharge, and the colored dust falls evenly on the bag net 4, and the dust collection box 6 receives the accidentally dropped dust in advance. The colored dust is a material with a certain viscosity. The quality of the gas cylinder is that it can be stably adhered to the bag net 4 without being exposed to wind and will not fall naturally. After standing for a period of time, clean water is injected into the water storage tank 8, and the extension rod 9 is pushed to push the pumping box 7 into the movable groove 5 at the bottom of the bag net 4. The limit rod 10 plays a limiting role. After it is ready, the box door is closed and the control switch of the motor 19 is turned on. The operation of the motor 19 drives the fixing rod 20 to rotate slowly at a uniform speed, thereby driving the fixing cylinder 21 to rotate. The fixing cylinder 21 cooperates with the fixing plate 22 to clamp the gas cylinder, so as to achieve the effect of driving the gas cylinder to rotate and detect. When the gas cylinder rotates on the bag net 4, when there is gas leakage on the side that is in contact with the bag net 4, the wind force ejected drives the airflow to blow the colored powder off, and the colored powder falls into the water storage tank 8 of the pumping box 7 and quickly merges with the internal water source, so that the water source changes color quickly, so as to achieve the effect of judging whether the gas cylinder is leaking by observing the water quality color in the water storage tank 8.

[0034] Embodiment 2:

[0035] Based on the first embodiment, Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, a motor 19 is fixedly installed in the middle of the back of the detection box 1, and a fixed rod 20 is fixedly connected to the output end of the motor 19. One end of the fixed rod 20 passes through the back of the detection box 1 and is fixedly connected to a fixed cylinder 21. Both sides of the middle of the inner wall of the detection box 1 are fixedly connected with clamps 23, and the two clamps 23 are arranged opposite to each other. The adjacent ends of the two clamps 23 are rotatably connected to multiple auxiliary wheels 24, and the outer walls of the multiple auxiliary wheels 24 are fixedly provided with protective pads. Both sides of the two clamps 23 are movably connected to movable shafts 25, and the non-adjacent sides of the two movable shafts 25 are fixedly connected to movable rods 26. The two movable rods 26 can be rotated to fit with the clamps 23. The top ends of the two adjacent movable rods 26 are fixedly connected to brush rods 27, and the bottom ends of the two brush rods 27 are fixedly provided with multiple bristles 28. The inner wall of the fixed cylinder 21 is fixedly connected with multiple springs, and one end of the multiple springs is fixedly connected to a fixed plate 22. The outer walls of the multiple fixed plates 22 are fixedly connected with anti-slip pads. The motor 19 carries The movable fixing rod 20 rotates slowly and uniformly, thereby driving the fixing cylinder 21 to rotate. The fixing cylinder 21 cooperates with the fixing plate 22 to clamp the gas cylinder, so as to achieve the effect of driving the gas cylinder to rotate and detect. Multiple fixing plates 22 clamp one end of the PRO gas cylinder, and two groups of auxiliary rotating wheels 24 are in contact with the outer wall of the PRO gas cylinder to assist the gas cylinder to rotate. Both groups of brushes 28 can brush away impurities on the surface of an adjacent group of auxiliary rotating wheels 24. By setting the cooperation of the clamp 23 and the auxiliary rotating wheel 24, when one end of the gas cylinder is clamped and rotated, the middle part can be auxiliary supported by the set clamp 23 to achieve the effect of stable rotation. The protective pad set on the auxiliary rotating wheel 24 can protect the bottle body of the gas cylinder and prevent the bottle body from being scratched by excessive contact area. Through the cooperation between the set movable rod 26, the brush rod 27 and the brush bristles 28, the dust and impurities on the auxiliary rotating wheel 24 can be effectively cleaned, so as to ensure that the auxiliary rotating wheel 24 can be kept clean in real time.

[0036] During specific use, the present invention provides a leak detection device and a leak detection method for manufacturing PRO gas cylinders. When one end of the gas cylinder is clamped, the bottle body cannot be stable. The bottle body is auxiliary supported by the cooperation of the clamp 23 to achieve the effect of stable rotation. When the bottle body rotates, it drives the auxiliary rotating wheel 24 to rotate at the same time. The protective pad provided on the auxiliary rotating wheel 24 can protect the bottle body of the gas cylinder to prevent the bottle body from being scratched due to excessive contact area. When the auxiliary rotating wheel 24 is contaminated with impurities and dust after being used for a period of time, the movable shaft 25 and the movable rod 26 are rotated to drive the movable rod 26 and the bristles 28 on the brush rod 27 to fit with the auxiliary rotating wheel 24, thereby effectively cleaning the dust and impurities on the auxiliary rotating wheel 24, thereby ensuring that the auxiliary rotating wheel 24 can be kept clean in real time.

[0037] Embodiment three:

[0038] Based on the second embodiment, Figure 1and Figure 7 As shown,

[0039] A fan 29 is provided on one side of the outer wall of the detection box 1, and a connecting pipe 30 is fixedly connected to the output end of the fan 29, and a filter box 31 is fixedly penetrated at one end of the connecting pipe 30, and a honeycomb activated carbon 32 is movably connected to one side of the inner wall of the filter box 31, and a filter screen 33 is snap-connected to the other side of the inner wall of the filter box 31, and a guide fan 34 is fixedly installed in the middle of the filter screen 33, and an air suction pipe is fixedly penetrated at the other end of the filter box 31, and one end of the air suction pipe is fixedly penetrated with the bottom of one side of the detection box 1, and a plurality of fan blades are fixedly provided on the outer wall of the guide fan 34, and a plurality of air guide holes are opened on the outer walls of the plurality of fan blades, and the setting of the air guide holes increases the fluidity of the exhaust gas, and the filter screen 33 can block the impurities inside the detection box 1, and the rotation of the guide fan 34 drives the wind to be evenly dispersed and enter the filter box 31 through the air guide holes. Internally, the honeycomb activated carbon 32 can effectively and evenly filter the leaked harmful gas. When the honeycomb activated carbon 32 needs to be replaced, the filter 32 is first disassembled and then directly taken out for replacement. By setting up the filter box 31, the honeycomb activated carbon 32 and the connecting pipe 30, the gas can be recovered and processed after the leaked gas is detected to prevent the internal gas from harming the operator when it is harmful. Through the cooperation of the filter 33 and the guide fan 34, the gas can be dispersed with the assistance of the rotation force of the guide fan 34 before entering the filter box 31, so that the gas is dispersed into the honeycomb activated carbon 32, so as to achieve the maximum utilization effect of the honeycomb activated carbon 32, and prevent the gas from only entering the honeycomb activated carbon 32 from one direction, thereby causing uneven filtering of the honeycomb activated carbon 32.

[0040] During specific use, the present invention provides a leak detection device and a leak detection method for manufacturing PRO gas cylinders. After the detection is completed, the control switch of the fan 29 is turned on. The fan 29 runs through the provided connecting pipe 30 to extract the leaked exhaust gas in the detection box 1. The exhaust gas is first filtered through the filter box 31. The fan 29 drives the fan guide 34 on the filter screen 33 to rotate while sucking air. Before the gas enters the filter box 31, the gas can be dispersed with the assistance of the rotation force of the fan guide 34, so that the gas is dispersed into the honeycomb activated carbon 32, thereby achieving the maximum utilization effect of the honeycomb activated carbon 32, preventing the gas from entering the honeycomb activated carbon 32 only from one direction, thereby causing uneven filtering of the honeycomb activated carbon 32. When the honeycomb activated carbon 32 needs to be replaced, the filter screen 33 is first removed and directly taken out for replacement.

[0041] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak detection device for manufacturing PRO gas cylinders, comprising a detection box (1), characterized in that: Both sides of the interior of the detection box (1) are movably connected to fixed frames (2), the bottom ends of the two fixed frames (2) are fixedly connected to an operation box (3), the operation box (3) comprises a bag net (4), a movable groove (5) and a dust collection box (6), the bag net (4) is located at the top of the movable groove (5), the dust collection box (6) is located at the bottom of the movable groove (5), the inner wall of the movable groove (5) is movably connected to a pumping box (7), the top of the pumping box (7) is provided with a water storage tank (8), the adjacent sides of the two fixed frames (2) are movably connected to a rotating shaft (13), the adjacent ends of the two rotating shafts (13) are fixedly connected to a storage barrel (11), the storage barrel (11) is provided with a water storage tank (8), and the storage barrel (11) is provided with a water storage tank (8). The outer wall of the material barrel (11) is provided with a plurality of discharge ports (12); non-adjacent ends of the two rotating shafts (13) are fixedly connected to movable wheels (16); the bottoms of the inner walls of the two fixed frames (2) are fixedly connected to air bags (17); the inner walls of the two air bags (17) are movably connected to a plurality of pinballs (18); a motor (19) is fixedly installed in the middle of the back of the detection box (1); the output end of the motor (19) is fixedly connected to a fixing rod (20); one end of the fixing rod (20) passes through the back of the detection box (1) and is fixedly connected to a fixing cylinder (21); both sides of the middle of the inner wall of the detection box (1) are fixedly connected to clamps (23); and the two The clamps (23) are arranged opposite to each other, and the adjacent ends of the two clamps (23) are rotatably connected to a plurality of auxiliary rotating wheels (24), and the outer walls of the plurality of auxiliary rotating wheels (24) are fixedly provided with protective pads. Both sides of the two clamps (23) are movably connected to movable shafts (25), and the non-adjacent sides of the two movable shafts (25) are fixedly connected to movable rods (26), and the top ends of the two adjacent movable rods (26) are fixedly connected to brush rods (27), and the bottom ends of the two brush rods (27) are fixedly provided with a plurality of brush bristles (28); a fan (29) is provided on one side of the outer wall of the detection box (1), and the output end of the fan (29) is fixedly connected to a connecting pipe. (30), a filter box (31) is fixedly penetrated at one end of the connecting pipe (30), a honeycomb activated carbon (32) is movably connected to one side of the inner wall of the filter box (31), a filter screen (33) is snap-connected to the other side of the inner wall of the filter box (31), a guide fan (34) is fixedly installed in the middle of the filter screen (33), an air suction pipe is fixedly penetrated at the other end of the filter box (31), one end of the air suction pipe is fixedly penetrated with the bottom of one side of the detection box (1), a plurality of springs are fixedly connected to the inner wall of the fixed cylinder (21), one end of the plurality of springs are fixedly connected to a fixed plate (22), and the outer walls of the plurality of fixed plates (22) are fixedly connected to an anti-slip pad.

2. A leak detection device for manufacturing PRO gas cylinders according to claim 1, characterized in that: Slide grooves are provided in the middle of both sides of the inner wall of the detection box (1), and the non-adjacent sides of the two fixed frames (2) are slidably connected to the inner walls of the slide grooves.

3. A leak detection device for manufacturing PRO gas cylinders according to claim 1, characterized in that: An extension rod (9) is fixedly connected to the middle of one end of the drawer box (7), and one end of the extension rod (9) is rotatably connected to a limit rod (10).

4. A leak detection device for manufacturing PRO gas cylinders according to claim 1, characterized in that: Both sides of the two movable wheels (16) are fixedly connected to connecting rods (14), the outer walls of the two adjacent connecting rods (14) are movably penetrated by one end of the fixed frame (2), and one end of the two adjacent connecting rods (14) is fixedly connected to a push plate (15).

5. A leak detection device for manufacturing PRO gas cylinders according to claim 1, characterized in that: A plurality of fan blades are fixedly disposed on the outer wall of the fan guide air (34), and a plurality of air guide holes are provided on the outer walls of the plurality of fan blades.

6. A leak detection device for manufacturing PRO gas cylinders according to claim 1, characterized in that: A box door is movably connected to one side of the front of the detection box (1), and a plurality of control buttons are fixedly provided on the front of the box door. The motor (19) and the fan (29) are electrically connected to an external power supply via the provided control buttons.

7. A leak detection method for a leak detection device used in manufacturing PRO gas cylinders, characterized in that: The leak detection device is a leak detection device for manufacturing PRO gas cylinders as described in any one of claims 1 to 6: the net (4) and the movable groove (5) and the dust collection box (6) are all arranged through, the outer walls of the two movable wheels (16) are in contact with the adjacent air bags (17), the movable wheels (16) move on the air bags (17) and come into contact with the pinballs (18) to cause bumps, and the storage barrel (11) evenly sprays dust onto the net (4) through the discharge port (12) during the rotation process to prepare for detection.

8. A leak detection method for a leak detection device for manufacturing a PRO gas cylinder according to claim 7, characterized in that: The plurality of fixing plates (22) clamp one end of the PRO gas cylinder, the two groups of auxiliary rotating wheels (24) are in contact with the outer wall of the PRO gas cylinder to assist the rotation of the gas cylinder, and the two groups of brushes (28) can brush away impurities on the surface of the adjacent group of auxiliary rotating wheels (24).

9. A leak detection method for a PRO gas cylinder manufacturing leak detection device according to claim 7, characterized in that: The filter (33) can block impurities inside the detection box (1); the air guide fan (34) rotates to drive the wind to be evenly dispersed and enter the filter box (31) through the air guide holes; the honeycomb activated carbon (32) can effectively and evenly filter leaked harmful gases; when the honeycomb activated carbon (32) needs to be replaced, the filter (33) is first disassembled and then directly taken out for replacement.

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