Gas cylinder pressure maintaining and leakage testing device

Abstract

The utility model discloses a gas cylinder pressure maintaining leakage testing device which comprises a pressure maintaining detection assembly and a turnover assembly, the turnover assembly is divided into a feeding turnover assembly and a discharging turnover assembly, and the feeding turnover assembly and the discharging turnover assembly are symmetrically distributed with the pressure maintaining detection assembly as the center. The pressure maintaining detection assembly comprises a rack and a pressing assembly. The rack comprises a channel steel plate at the top, stand columns on the two sides and a test board located below the channel steel plate, the pressing assembly is installed on the channel steel plate, and a lifting mechanism is installed on the rack; the feeding turnover assembly comprises a conveying frame assembly, a turnover frame assembly and a motor assembly. The conveying frame assembly penetrates through the overturning frame assembly, and the motor assembly is installed on the overturning frame assembly. The discharging overturning assembly is provided with a conveying frame assembly, an overturning frame assembly and a motor assembly which are formed like the feeding overturning assembly. According to the utility model, the detection efficiency of the gas cylinder can be improved, and the labor cost can be reduced.

Description

Technical Field

[0001] This utility model relates to a gas cylinder testing device, and more particularly to a gas cylinder pressure-holding leak testing device. Background Technology

[0002] After gas cylinders are manufactured, current methods for determining whether leaks exist include observing air bubbles during the pressure holding period using water immersion, measuring the pressure difference after filling with automated equipment, or monitoring changes in cylinder pressure or mass to reduce human error. Existing detection methods primarily rely on manual inspection of each cylinder individually, or on instrument-based inspection, resulting in low efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a gas cylinder pressure-maintaining and leak-testing device.

[0004] This invention addresses the problem of low detection efficiency caused by existing detection methods that rely primarily on manual, one-by-one testing or the use of instruments for individual testing.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model includes a pressure holding detection component and a flipping component. The flipping component is divided into a feeding flipping component and a discharging flipping component, which are symmetrically distributed around the pressure holding detection component. The pressure holding detection component includes a frame and a clamping component. The frame includes a top channel steel plate, two side columns, and a test platform located below the channel steel plate. The clamping component is installed on the channel steel plate, and a lifting mechanism is installed on the frame. The feeding flipping component includes a transmission frame assembly, a flipping frame assembly, and a motor assembly. The transmission frame assembly passes through the flipping frame assembly, and the motor assembly is installed on the flipping frame assembly. The discharging flipping component has a transmission frame assembly, a flipping frame assembly, and a motor assembly with the same composition as the feeding flipping component. This utility model is controlled by a control system and does not require manual operation. The pressure holding detection component is the core component of this utility model and is used to detect whether there is a possibility of leakage in the gas cylinder. The feeding flipping component continuously feeds the gas cylinder into the pressure holding detection component, and the discharging flipping component removes the tested gas cylinder and sends it to the next process.

[0006] Furthermore, the clamping assembly includes a cylinder and a clamping column. The cylinder is mounted on the channel steel plate, and the push rod of the cylinder passes through the channel steel plate and is connected to the clamping column. There are at least ten cylinders, which are arranged at equal intervals along the extension direction of the channel steel plate. The test platform is provided with studs, and the studs are fitted with sealing rings. The number of studs is consistent with the number of cylinders.

[0007] Furthermore, the transmission frame assembly includes a transmission frame body, a first guide rail, and a sliding frame; the transmission frame body is constructed from square tubing, and the first guide rail is mounted on two opposite crossbars of the transmission frame body; the sliding frame includes a connecting support plate, a first guide rail slider, and a positioning groove steel plate; the first guide rail slider is fixedly mounted under the connecting support plate and adapted to the first guide rail, and the positioning groove steel plate is fixedly mounted on the connecting support plate.

[0008] Furthermore, the flipping frame assembly includes a flipping frame, a movable support, and a flipping mechanism; the flipping frame is constructed from rectangular tubes, and second guide rails are installed on two opposite crossbars of the flipping frame; the movable support includes a support body and a second guide rail slider, the second guide rail slider being fixedly installed on both sides of the support body and adapted to the second guide rail; the flipping mechanism is fixedly installed in the middle position of the movable support.

[0009] Furthermore, the flipping mechanism includes a fixed structure, a flipping connecting block, a crossbar, and an electromagnet; the fixed structure is fixedly installed on the bracket body, one end of the flipping connecting block is hinged to the fixed structure, and the other end is fixedly connected to the crossbar; the electromagnets are arranged at equal intervals along the crossbar, and the side of the crossbar is provided with a joint.

[0010] Furthermore, the motor assembly includes a motor frame, a motor, a drive shaft, a driven shaft, and sprockets; the motor frame is fixedly mounted on the support body, the motor is fixed on the motor frame, and the drive shaft and driven shaft are arranged parallel to each other and mounted across the motor frame; the drive shaft passes through the motor, and the driven shaft is close to the flipping mechanism; sprockets with corresponding positions are installed at both ends of the drive shaft and both ends of the driven shaft; a chain is fitted on the sprocket, one end of the chain is fixed to the sprocket of the drive shaft, and the other end passes through the sprocket of the driven shaft and connects to the joint on the crossbar.

[0011] Furthermore, the pressure holding and testing assembly also includes a water tank, which is located directly below the channel steel plate, and the test platform is located inside the water tank; the lifting mechanism includes an electric cylinder, a third guide rail, and a third guide rail slider; the third guide rail slider is mounted on the column and is adapted to the third guide rail; the water tank is located between two columns, the third guide rail is respectively mounted on both sides of the water tank, the electric cylinder is located on the side of the column, and the push rod of the electric cylinder is connected to the channel steel plate of the frame.

[0012] The beneficial effects of this utility model are: 1. The assembly line structure design allows for the simultaneous testing of multiple gas cylinders, improving testing efficiency; 2. The entire process relies on the coordination of the control system and mechanical structure, eliminating the need for gas cylinder filling during testing and reducing manual labor; 3. The location of gas cylinder leaks can be visually identified based on the position of air bubbles in the water tank. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the feeding and turning component of this utility model.

[0015] Figure 3 This is a schematic diagram of the gas cylinder installation in the pressure holding and detection component of this utility model.

[0016] Figure 4 This is a schematic diagram of the pressure holding detection component of this utility model.

[0017] Figure 5 This is a structural schematic diagram of the pressure holding detection component with a water tank according to this utility model.

[0018] Figure 6 This is a structural schematic diagram of the transmission frame assembly of this utility model.

[0019] Figure 7 This is a schematic diagram of the combination of the flipping frame assembly and the motor assembly of this utility model.

[0020] In the diagram: A. Feeding and tilting assembly; B. Pressure holding and detection assembly; C. Discharge and tilting assembly; a. Conveyor frame assembly; b. Tilting frame assembly; c. Motor assembly; 1. Cylinder; 2. Channel steel plate; 3. Column; 4. Electric cylinder; 5. Third guide rail slider; 6. Third guide rail;

[0021] 7. Test bench; 8. Clamping column; 9. Stud; 10. Sealing ring; 11. Water tank; 12. Transmission frame body; 13. First guide rail; 14. First guide rail slider; 15. Sliding frame; 16. Positioning slot steel plate; 17. Tilting frame; 18. Second guide rail; 19. Second guide rail slider; 20. Support body; 21. Motor; 22. Drive shaft; 23. Sprocket; 24. Motor frame; 25. Crossbar; 26. Electromagnet; 27. Connector; 28. Chain; 29. ​​Tilting connecting block; 30. Fixed structure; 31. Driven shaft. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 , 2As shown in Figure 3, this utility model relates to a production line equipment for pressure testing and leak detection of gas cylinders, including a pressure testing component B and a tilting component. The tilting component is divided into a feeding tilting component A and a discharging tilting component C, which are symmetrically distributed around the pressure testing component B. That is, the gas cylinder is fed into the pressure testing component B for testing under the action of the feeding tilting component A. After testing, the discharging tilting component C transfers and transports the gas cylinder out. This utility model utilizes a control system for the entire process, with other robotic arms assisting in the work.

[0024] like Figure 3 As shown, the pressure holding test assembly B includes a frame and a clamping assembly. The frame includes a top channel steel plate 2, two side columns 3, and a test platform 7 located below the channel steel plate 2. The clamping assembly is mounted on the channel steel plate 2, and a lifting mechanism is installed on the frame.

[0025] like Figure 3 , 4 As shown in Figure 5, the clamping assembly includes a cylinder 1 and a clamping column 8. The cylinder 1 is mounted on the channel steel plate 2, and the push rod of the cylinder 1 passes through the channel steel plate 2 and connects to the clamping column 8. There are at least ten cylinders 1, arranged at equal intervals along the extension direction of the channel steel plate 2. The test bench 7 is provided with studs 9, and sealing rings 10 are fitted on the studs 9; the number of studs 9 is consistent with the number of cylinders 1. When the gas cylinder is fed to the test bench 7 from the feeding and tilting assembly A, the opening of the gas cylinder is fitted onto the stud 9. When the cylinder 1 is working, its push rod pushes down, causing the clamping column 8 to move, and the clamping column 8 presses down on the bottom of the gas cylinder, so that the opening of the gas cylinder is sealed.

[0026] The pressure holding test assembly B also includes a water tank 11, which is located directly below the channel steel plate 2, with the test platform 7 situated inside the water tank 11. The lifting mechanism includes an electric cylinder 4, a third guide rail 6, and a third guide rail slider 5. The third guide rail slider 5 is mounted on the column 3 and is adapted to the third guide rail 6. The water tank 11 is located between the two columns 3, and the third guide rail 6 is fixedly mounted on both sides of the water tank 11. The electric cylinder 4 is located on the side of the column 3, and its push rod is connected to the channel steel plate 2 of the frame. The push rod of the electric cylinder 4 extends upwards, causing the column 3, along with the third guide rail slider 5, to move along the third guide rail 6. This causes the entire frame, including the column 3, channel steel plate 2, and test platform 7, to rise until the test platform 7 is exposed above the water tank 11. After the gas cylinder is sealed on the test bench 7, the push rod of the electric cylinder 4 retracts, and the entire frame, including the column 3, the channel steel plate 2 and the test bench 7, moves downward by means of the lifting mechanism and is immersed in the water tank 11. After the test is completed, the entire frame moves upward again by means of the lifting mechanism, and the test bench 7 is exposed above the water tank 11 again, so as to carry out the next work process of the discharge flipping component C, and so on.

[0027] like Figure 2As shown, the feeding and tilting assembly A includes a transfer frame assembly a, a tilting frame assembly b, and a motor assembly c. The transfer frame assembly a passes through the tilting frame assembly b, and the motor assembly c is mounted on the tilting frame assembly b.

[0028] like Figure 6 As shown, the transmission frame assembly a includes a transmission frame body 12, a first guide rail 13, and a sliding frame 15. The transmission frame body 12 is constructed from square tubing, and the first guide rail 13 is mounted on two opposite crossbars of the transmission frame body 12. The sliding frame 15 includes a connecting support plate, a first guide rail slider 14, and a positioning slot steel plate 16. The first guide rail slider 14 is fixedly mounted under the connecting support plate and adapted to the first guide rail 13, while the positioning slot steel plate 16 is fixedly mounted on the connecting support plate. The number of positioning slot steel plates 16 is the same as the number of cylinders 1, and their positions correspond to the positions of the cylinders 1. Gas cylinders are placed on the positioning slot steel plates 16, which have a limiting function for the gas cylinders. The length of the transmission frame body 12 can be extended infinitely according to the length of the production line, and the sliding frame 15 slides on the transmission frame body 12, thereby driving the feeding of gas cylinders. The sliding frame 15 is connected to an electric control system to control its movement. When the sliding frame 15 moves to the outside of the tilting frame assembly b, a robotic arm grabs the gas cylinder and places it on the positioning slot steel plate 16. After the slot is full, the sliding frame 15 moves directly under the tilting frame assembly b, waiting for the tilting frame assembly b to perform the next process. After the gas cylinder separates from the positioning slot steel plate 16, the sliding frame 15, together with the positioning slot steel plate 16 mounted on it, moves along the first guide rail 13 to the outside of the tilting frame assembly b to wait for the robotic arm to place the next batch of gas cylinders. This process of feeding gas cylinders is repeated.

[0029] like Figure 7 As shown, the tilting frame assembly b includes a tilting frame 17, a movable support, and a tilting mechanism. The tilting frame 17 is constructed from rectangular tubing, and second guide rails 18 are mounted on two opposing crossbars of the tilting frame 17. The movable support includes a support body 20 and second guide rail sliders 19. The second guide rail sliders 19 are fixedly mounted on both sides of the support body 20 and are adapted to the second guide rails 18. The tilting mechanism is fixedly mounted in the middle position of the movable support. The movable support can move left and right along the second guide rails 18 by means of an electric control system, so as to bring the tilting mechanism closer to or away from the pressure holding detection assembly B.

[0030] like Figure 7As shown, the flipping mechanism includes a fixed structure 30, a flipping connecting block 29, a crossbar 25, and electromagnets 26. The fixed structure 30 is fixedly mounted on the bracket body 20. One end of the flipping connecting block 29 is hinged to the fixed structure 30, and the other end is fixedly connected to the crossbar 25. The electromagnets 26 are arranged at equal intervals along the crossbar 25, and the side of the crossbar 25 is provided with a joint 27. The rotation of the flipping connecting block 29 drives the rotation of the crossbar 25 and the electromagnets 26 on it. The electromagnets 26 are used to hold the gas cylinder on the positioning slot steel plate 16 and are conveyed to the pressure holding detection component B under the push of the movable bracket. After the gas cylinder is fixed at the pressure holding detection component B, the movable bracket moves backward, and the electromagnets 26 separate from the gas cylinder.

[0031] like Figure 7 As shown, motor assembly c includes a motor frame 24, a motor 21, a drive shaft 22, a driven shaft 31, and sprockets 23. The motor frame 24 is fixedly mounted on the support body 20, and the motor 21 is fixed on the motor frame 24. The drive shaft 22 and the driven shaft 31 are arranged parallel to each other and are mounted across the motor frame 24. The drive shaft 22 passes through the motor 21, and the driven shaft 31 is close to the tilting mechanism. Sprockets 23 are installed at both ends of the drive shaft 22 and both ends of the driven shaft 31, with corresponding positions. A chain 28 is fitted onto the sprocket 23; one end of the chain 28 is fixed to the sprocket 23 of the drive shaft 22, and the other end passes through the sprocket 23 of the driven shaft 31 and connects to the connector 27 on the crossbar 25. When motor 21 is working, drive shaft 22 rotates, driving chain 28. When drive shaft 22 rotates in the opposite direction, chain 28 is released, causing crossbar 25 to rotate downward. At this time, electromagnet 26 contacts gas cylinder. Then drive shaft 22 rotates in the forward direction, chain 28 tightens, causing crossbar 25 to rotate upward. At this time, electromagnet 26 lifts the gas cylinder it holds, turning the gas cylinder from a horizontal state to a vertical state. Then, the movement of movable bracket is used to send the gas cylinder into test platform 7.

[0032] The discharge tilting assembly C is equipped with a transfer frame assembly, a tilting frame assembly, and a motor assembly, which are the same as those in the feeding tilting assembly A. After the gas cylinder is tested at the water tank 11, the test platform 7 of the lifting frame is exposed above the water tank 11 under the action of the lifting mechanism. The motor of the discharge tilting assembly C works, driving the chain to rotate, which in turn drives the crossbar and electromagnet to rotate upward. The movable bracket moves towards the pressure holding detection assembly B, causing the electromagnet to attract the gas cylinder. Then, under the action of the electric control system, the movable bracket moves in the opposite direction, the motor of the discharge tilting assembly C works in the opposite direction, the crossbar and electromagnet rotate 90°, the gas cylinder changes from a vertical state to a horizontal state, and the gas cylinder is placed on the transfer frame assembly. The gas cylinder is automatically transferred to the next process. When the gas cylinder is cleaned, the sliding frame of the transfer frame assembly returns to below the tilting frame assembly of the discharge tilting assembly C, and the cycle continues. This realizes the automated operation of the discharge tilting assembly C in picking up, putting down, and discharging materials.

[0033] This invention utilizes an immersion method to identify leaking gas cylinders. The gas cylinder is completely sealed at the test platform 7 using studs 9 and sealing rings 10. The test platform 7 is then completely immersed in a water tank 11. If there is a leak in the gas cylinder, the internal pressure will be higher than the external pressure, causing gas to escape. By observing the location of the bubbles, the leaking gas cylinder and its leak point can be located quickly. Leaking gas cylinders are then diverted and removed during discharge.

Claims

1. A gas cylinder pressure-maintaining and leak-testing device, characterized in that... The system includes a pressure holding detection component and a tilting component. The tilting component is divided into a feeding tilting component and a discharging tilting component, which are symmetrically distributed around the pressure holding detection component. The pressure holding detection component includes a frame and a clamping component. The frame includes a top channel steel plate, two side columns, and a test platform located below the channel steel plate. The clamping component is mounted on the channel steel plate, and a lifting mechanism is installed on the frame. The feeding tilting component includes a transfer frame assembly, a tilting frame assembly, and a motor assembly. The transfer frame assembly passes through the tilting frame assembly, and the motor assembly is mounted on the tilting frame assembly. The discharging tilting component has the same transfer frame assembly, tilting frame assembly, and motor assembly as the feeding tilting component.

2. The gas cylinder pressure-maintaining and leak-testing device according to claim 1, characterized in that... The clamping assembly includes a cylinder and a clamping column. The cylinder is mounted on the channel steel plate, and the push rod of the cylinder passes through the channel steel plate and is connected to the clamping column. There are at least ten cylinders, which are arranged at equal intervals along the extension direction of the channel steel plate. The test platform is provided with studs, and the studs are fitted with sealing rings. The number of studs is consistent with the number of cylinders.

3. The gas cylinder pressure-maintaining and leak-testing device according to claim 2, characterized in that... The transmission frame assembly includes a transmission frame body, a first guide rail, and a sliding frame; the transmission frame body is constructed from square tubing, and the first guide rail is mounted on two opposite crossbars of the transmission frame body; the sliding frame includes a connecting support plate, a first guide rail slider, and a positioning groove steel plate; the first guide rail slider is fixedly mounted under the connecting support plate and adapted to the first guide rail, and the positioning groove steel plate is fixedly mounted on the connecting support plate.

4. A gas cylinder pressure-maintaining and leak-testing device according to claim 2, characterized in that... The flipping frame assembly includes a flipping frame, a movable support, and a flipping mechanism; the flipping frame is constructed from rectangular tubes, and second guide rails are installed on two opposite crossbars of the flipping frame; the movable support includes a support body and a second guide rail slider, the second guide rail slider being fixedly installed on both sides of the support body and adapted to the second guide rail; the flipping mechanism is fixedly installed in the middle position of the movable support.

5. A gas cylinder pressure-maintaining and leak-testing device according to claim 4, characterized in that... The flipping mechanism includes a fixed structure, a flipping connecting block, a crossbar, and an electromagnet; the fixed structure is fixedly installed on the support body, one end of the flipping connecting block is hinged to the fixed structure, and the other end is fixedly connected to the crossbar; the electromagnets are arranged at equal intervals along the crossbar, and the side of the crossbar is provided with a joint.

6. A gas cylinder pressure-maintaining and leak-testing device according to claim 5, characterized in that... The motor assembly includes a motor frame, a motor, a drive shaft, a driven shaft, and sprockets. The motor frame is fixedly mounted on the support body, the motor is fixed on the motor frame, and the drive shaft and driven shaft are arranged parallel to each other and mounted across the motor frame. The drive shaft passes through the motor, and the driven shaft is close to the flipping mechanism. Sprockets with corresponding positions are installed at both ends of the drive shaft and both ends of the driven shaft. A chain is fitted on the sprocket, one end of which is fixed to the sprocket of the drive shaft, and the other end passes through the sprocket of the driven shaft and connects to the joint on the crossbar.

7. A gas cylinder pressure-maintaining and leak-testing device according to claim 2, characterized in that... The pressure holding and testing assembly also includes a water tank, which is located directly below the channel steel plate, and the test platform is located inside the water tank; the lifting mechanism includes an electric cylinder, a third guide rail, and a third guide rail slider; the third guide rail slider is mounted on the column and is adapted to the third guide rail; the water tank is located between two columns, the third guide rail is respectively mounted on both sides of the water tank, the electric cylinder is located on the side of the column, and the push rod of the electric cylinder is connected to the channel steel plate of the frame.

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