An automatic rapid detection device for gas cylinders

Abstract

This utility model relates to an automatic and rapid gas cylinder testing device, belonging to the field of gas cylinder testing technology. It includes a roller conveyor, a clamping mechanism, a support plate, a lifting and moving mechanism, a pressurized air pipe, a pressure detector, and an inlet valve. The outer end of the pressurized air pipe is connected to a high-pressure gas source via a flexible air supply hose. Multiple replaceable sealing sleeves are fitted to the end of the pressurized air pipe furthest from the inlet valve. The inner diameter of each sealing sleeve at the end furthest from the pressurized air pipe is unequal. Each sealing sleeve has a threaded tube that is threaded onto the pressurized air pipe at the end closest to it, and a sealing gasket is installed inside the sealing sleeve. This utility model achieves automatic gas cylinder transport through the roller conveyor. Combined with the coordinated work of the clamping and lifting and moving mechanisms, manual handling and positioning are eliminated, significantly reducing manual intervention and improving testing efficiency. Multiple replaceable sealing sleeves with different inner diameters can be quickly installed and removed via threads, adapting to various gas cylinder specifications without replacing the entire sealing mechanism, thus reducing costs.

Description

Technical Field

[0001] This utility model relates to an automatic and rapid detection device for gas cylinders, belonging to the field of gas cylinder detection technology. Background Technology

[0002] As a common container for storing compressed gases, the sealing performance of gas cylinders directly affects safety. Therefore, regular inspections are necessary during the production and use of gas cylinders. Currently, traditional gas cylinder inspection methods rely heavily on manual operation, such as manually handling cylinders and manually connecting pressurizing devices. This is not only inefficient but also prone to positioning errors and incomplete sealing, affecting the accuracy of the test results. Furthermore, different sizes of gas cylinders have varying inner diameters, making it difficult for traditional inspection devices to flexibly adapt their sealing components to various cylinder types. This necessitates frequent replacement of the entire sealing mechanism, further increasing inspection costs and operational complexity. Therefore, there is an urgent need for a rapid inspection device that can achieve automated operation, adapt to various gas cylinder types, and provide reliable sealing. Utility Model Content

[0003] This invention provides an automatic and rapid gas cylinder detection device, which solves the problems existing in the background art.

[0004] This utility model relates to an automatic rapid detection device for gas cylinders, including a roller conveyor for conveying gas cylinders. The outer circumference of the conveying roller of the roller conveyor is provided with an annular V-shaped groove. A pressing mechanism for lifting, pressing and releasing gas cylinders is provided above the middle of the roller conveyor. A support plate is provided next to the pressing mechanism. The support plate is connected to a lifting and moving mechanism that can drive it to lift and move left and right. A pressurized air pipe is fixed in the middle of the support plate. A pressure detector is fixed on the pressurized air pipe. An air inlet valve is provided on the pressurized air pipe. The outer end of the pressurized air pipe is connected to a high-pressure air source through a gas delivery hose. Multiple replaceable sealing sleeves are provided at the end of the pressurized air pipe away from the air inlet valve. The inner diameter of each sealing sleeve at the end away from the pressurized air pipe is not equal. Each sealing sleeve at the end near the pressurized air pipe has a threaded tube that is threaded onto the pressurized air pipe. A sealing gasket is provided inside the sealing sleeve.

[0005] As a preferred embodiment, a sealing ring one is provided on the inner wall of the sealing sleeve, and a sealing ring two is provided between the sealing sleeve and the support plate. The pressure detector is a pressure gauge. The sealing ring one further enhances the sealing effect between the inner side of the sealing sleeve and the gas cylinder opening, while the sealing ring two prevents air leakage at the connection between the sealing sleeve and the support plate. This double-sealing structure significantly reduces the probability of gas leakage and ensures the accuracy of the test. The pressure gauge, as a pressure detector, can intuitively display the pressure changes inside the gas cylinder, making it easier for operators to quickly judge the test results and reducing the difficulty of operation.

[0006] As a preferred embodiment, a limit cylinder is fixed on the frame between the clamping mechanism and the lifting and moving mechanism, and a limit plate is fixed to the top of the piston rod of the limit cylinder. The limit cylinder drives the limit plate to rise and fall, which can laterally limit the gas cylinder when it reaches the detection position, ensuring that the gas cylinder and the sealing sleeve are accurately aligned, improving the efficiency and accuracy of sealing docking, and reducing docking adjustment time.

[0007] As a preferred embodiment, the clamping mechanism includes a clamping bracket fixed to the frame of the roller conveyor. A clamping cylinder is fixed to the top of the clamping bracket, and an arc-shaped clamping plate is fixed to the bottom piston rod end of the clamping cylinder. The clamping bracket provides a stable mounting base for the clamping cylinder, ensuring the overall structural stability of the clamping mechanism. The clamping cylinder has strong driving capability, enabling it to drive the clamping plate to rise and fall stably, ensuring controllable clamping force. The arc-shaped clamping plate has a higher fit with the outer circumference of the gas cylinder, increasing the contact area and improving clamping stability. Furthermore, the clamping cylinder can control the pressing height according to the outer diameter of the gas cylinder, adapting to gas cylinders of various sizes.

[0008] As a preferred option, a rubber layer is fixed to the bottom wall of the clamping plate. The rubber layer is elastic and can buffer the pressure of the clamping plate on the surface of the gas cylinder during the clamping process, preventing the gas cylinder surface from being damaged and protecting the gas cylinder; at the same time, the rubber layer can increase the friction with the gas cylinder surface, further improving the clamping and fixing effect and preventing the gas cylinder from shifting during testing.

[0009] As a preferred embodiment, the lifting and moving mechanism includes mounting plates fixed to the front and rear sides of the roller conveyor frame. A horizontal moving slide rail is fixed to the top of the mounting plate, and a moving slider is provided on the moving slide rail. A moving plate is fixed to the top of the moving slider, and a moving cylinder is hinged to the moving plate. The moving cylinder is fixed to the mounting plate, and a gantry frame is fixed between the front and rear moving plates. The gantry frame is equipped with a lifting mechanism that connects to the support plate. The moving cylinder drives the moving plate to slide horizontally along the moving slide rail, which can drive the gantry frame and the support plate to move left and right, realizing lateral position adjustment. The gantry frame can connect the front and rear moving plates to ensure the stability of the support plate during movement, and at the same time provide a mounting base for the lifting mechanism.

[0010] As a preferred embodiment, the lifting mechanism includes a lifting slide rail fixed to the inner wall of the gantry frame, a lifting slider connected to the lifting slide rail, a fixing plate fixed between the lifting slider and the support plate, and a lifting adjustment cylinder fixed in the middle of the gantry frame, with the bottom piston rod of the lifting adjustment cylinder fixed to the support plate. The lifting adjustment cylinder has stable driving capability, can accurately control the lifting height of the support plate, ensures smooth connection between the sealing sleeve and the gas cylinder neck, and is adaptable to gas cylinders of various sizes.

[0011] As a preferred option, the bottom of the support plate is provided with a clearance surface, which allows the gas cylinder to pass smoothly when the support plate is raised.

[0012] This utility model has the following beneficial effects:

[0013] Automated cylinder transport is achieved via a roller conveyor, working in conjunction with a clamping mechanism and a lifting and moving mechanism. This eliminates the need for manual handling and positioning, significantly reducing human intervention and improving testing efficiency. The clamping mechanism secures the cylinders in the testing position, preventing movement during testing from affecting the results. The lifting and moving mechanism allows for flexible adjustment of the support plate position, achieving precise alignment between the pressurized gas hose and the cylinder opening. Multiple replaceable sealing sleeves with different inner diameters, quickly installed and removed via threads, can accommodate various cylinder sizes without requiring replacement of the entire sealing mechanism, reducing costs. Sealing gaskets ensure a tight seal between the sealing sleeve and the cylinder opening. Combined with a high-pressure gas source and pressure detector, this enables efficient sealing testing, reducing human intervention and improving efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the pressurized air pipe.

[0016] Figure 3 This is a partial side view of the structure of this utility model;

[0017] Figure 4 This is a side view of the lifting and moving mechanism.

[0018] In the diagram: 1. Conveyor roller; 2. Pressing bracket; 3. Pressing cylinder; 4. Pressing plate; 5. Lifting and adjusting cylinder; 6. Limiting plate; 7. Gantry frame; 8. Sealing sleeve; 9. Pressurizing air pipe; 10. Moving slide plate; 11. Moving cylinder; 12. Limiting cylinder; 13. Mounting plate; 14. Support plate; 15. Pressure gauge; 16. Air supply hose; 17. Sealing gasket; 18. Fixing plate; 19. Lifting slide rail. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Example 1, such as Figures 1 to 4As shown, this utility model is an automatic rapid detection device for gas cylinders, including a roller conveyor for conveying gas cylinders. The outer periphery of the conveying roller 1 of the roller conveyor is provided with an annular V-shaped groove. A pressing mechanism for lifting, pressing and releasing gas cylinders is provided above the middle of the roller conveyor. A support plate 14 is provided next to the pressing mechanism. The support plate 14 is connected to a lifting and moving mechanism that can drive it to lift and move left and right. A pressurized air pipe 9 is fixed in the middle of the support plate 14. A pressure detector is fixed on the pressurized air pipe 9. An air inlet valve is provided on the pressurized air pipe 9. The outer end of the pressurized air pipe 9 is connected to a high-pressure air source through a gas delivery hose 16. Multiple replaceable sealing sleeves 8 are provided at the end of the pressurized air pipe 9 away from the air inlet valve. The inner diameter of each sealing sleeve 8 at the end away from the pressurized air pipe 9 is not equal. Each sealing sleeve 8 at the end near the pressurized air pipe 9 is provided with a threaded tube that is threaded onto the pressurized air pipe 9. A sealing gasket 17 is provided inside the sealing sleeve 8.

[0021] Equipment Preparation: Select a sealing sleeve 8 with the corresponding inner diameter according to the inner diameter of the gas cylinder to be tested. Install the sealing sleeve 8 onto the pressurized gas pipe 9 through the threaded tube at one end. Check whether the connection between the gas delivery hose 16 and the high-pressure gas source and the pressurized gas pipe 9 is secure, and whether the pressure detector is working properly. During operation, place the gas cylinder to be tested on the V-shaped groove of the conveyor roller 1 of the roller conveyor. Start the roller conveyor, and the gas cylinder moves towards the testing position as the conveyor roller 1 rotates. When the gas cylinder reaches the testing position, the roller conveyor stops, and the clamping mechanism is activated to press the gas cylinder firmly onto the V-shaped groove of the conveyor roller. The lifting and moving mechanism is activated, which drives the support plate 14 to descend to the testing height and move it left and right so that the sealing sleeve 8 at the end of the pressurized gas pipe 9 is aligned with the gas cylinder opening. Until the sealing sleeve 8 is fitted into the gas cylinder opening and the sealing gasket 17 inside the sealing sleeve 8 is in tight contact with the gas cylinder opening, a seal is formed. Open the air inlet valve on the pressurized gas pipe 9, and the high-pressure gas source... High-pressure gas is supplied to the pressurized gas pipe 9 through the gas supply hose 16, and the gas enters the gas cylinder to be tested through the sealing sleeve 8. The operator observes the change in the pressure detector value. When the test pressure is reached, the inlet valve is closed and the pressure is maintained. If the pressure detector value remains stable within the specified time, it indicates that the gas cylinder is well sealed and there is no leakage. If the pressure detector value drops, it indicates that there is a leakage problem in the gas cylinder, which needs to be marked and further inspected. After the test is completed, the high-pressure gas in the gas cylinder is released. The lifting and moving mechanism first moves to the right and then rises back to the initial position. The clamping mechanism releases the gas cylinder, and the roller conveyor continues to transport the gas cylinder to the right.

[0022] Example 2, based on Example 1, has a sealing ring 1 on the inner wall of the sealing sleeve 8, and a sealing ring 2 between the sealing sleeve 8 and the support plate 14. The pressure detector is a pressure gauge 15. Automatic conveying of the gas cylinder is achieved through a roller conveyor. With the coordinated operation of the pressing mechanism, lifting and moving mechanism, and limit cylinder 12, manual handling and positioning are eliminated, significantly reducing manual intervention and improving detection efficiency. An exhaust pipe is provided on the pressurizing pipe 9 between the inlet valve and the pressure gauge 15. An exhaust valve is provided on the exhaust pipe, or the inlet valve is a three-way valve with the other port connected to the exhaust pipe. When rotated to connect the pressurizing pipe 9 to the gas delivery hose 16 for air intake, and when rotated to connect the pressurizing pipe 9 to the exhaust pipe for air exhaust.

[0023] A limit cylinder 12 is fixed on the frame between the pressing mechanism and the lifting and moving mechanism. A limit plate 6 is fixed to the top of the piston rod of the limit cylinder 12. When the roller conveyor transports the gas cylinder, the limit cylinder 12 extends and the limit plate 6 rises accordingly. When the gas cylinder reaches the limit plate 6, it is limited. When the pressing mechanism presses the gas cylinder, the limit cylinder 12 retracts and the limit plate 6 descends.

[0024] The clamping mechanism includes a clamping bracket 2 fixed on the frame of the roller conveyor, a clamping cylinder 3 fixed on the top of the clamping bracket 2, and an arc-shaped clamping plate 4 fixed to the bottom piston rod end of the clamping cylinder 3.

[0025] A rubber layer is fixed to the bottom wall of the clamping plate 4. The clamping cylinder 3 extends, causing the clamping plate 4 to descend, thereby clamping the top of the gas cylinder.

[0026] The lifting and moving mechanism includes mounting plates 13 fixed to the front and rear sides of the roller conveyor frame. A horizontal moving slide rail is fixed to the top of the mounting plate 13, and a moving slider is provided on the moving slide rail. A moving slide plate 10 is fixed to the top of the moving slider, and a moving cylinder 11 is hinged to the moving slide plate 10. The moving cylinder 11 is fixed to the mounting plate 13, and a gantry frame 7 is fixed between the front and rear moving slide plates 10. The gantry frame 7 is equipped with a lifting mechanism that connects to the support plate 14. When the moving cylinder 11 extends, it moves the moving slide plate 10 along the moving slide rail, thereby causing the sealing sleeve 8 of the support plate 14 to move closer to and away from the gas cylinder opening via the gantry frame 7.

[0027] The lifting mechanism includes a lifting slide rail 19 fixed to the inner wall of the gantry frame 7. A lifting slider is connected to the lifting slide rail 19. A fixing plate 18 is fixed between the lifting slider and the support plate 14. A lifting adjustment cylinder 5 is fixed in the middle of the gantry frame 7. The bottom piston rod end of the lifting adjustment cylinder 5 is fixed to the support plate 14. Extending the lifting adjustment cylinder 5 can lower the support plate 14, adjusting the height of the sealing sleeve 8 so that the sealing sleeve 8 is coaxial with the gas cylinder.

[0028] The bottom of the support plate 14 is provided with a clearance plane. The air intake valve is an electric valve, and the pressure detector can use a pressure sensor. The pressure sensor is connected to a controller, which is connected to the stepper conveyor motor, clamping cylinder 3, lifting and adjusting cylinder 5, limit cylinder 12, and moving cylinder 11 of the air intake valve roller conveyor, resulting in a higher degree of automation.

[0029] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A device for automatic and rapid detection of gas cylinders, comprising a roller conveyor for conveying the gas cylinders, characterized in that: The conveying roller (1) of the roller conveyor is provided with an annular V-shaped groove on its outer periphery. The roller conveyor is provided with a pressing mechanism for lifting and pressing and releasing the gas cylinder above the middle part. A support plate (14) is provided next to the pressing mechanism. The support plate (14) is connected to a lifting and moving mechanism that can drive it to lift and move left and right. A pressurized air pipe (9) is fixed in the middle of the support plate (14). A pressure detector is fixed on the pressurized air pipe (9). An air inlet valve is provided on the pressurized air pipe (9). The outer end of the pressurized air pipe (9) is connected to a high-pressure air source through a gas delivery hose (16). Multiple replaceable sealing sleeves (8) are provided at the end of the pressurized air pipe (9) away from the air inlet valve. The inner diameter of each sealing sleeve (8) is not equal at the end away from the pressurized air pipe (9). Each sealing sleeve (8) is provided with a threaded pipe that is threaded on the pressurized air pipe (9) at the end near the pressurized air pipe (9). A sealing gasket (17) is provided inside the sealing sleeve (8).

2. The automatic and rapid detection device for gas cylinders according to claim 1, characterized in that: A sealing ring 1 is provided on the inner wall of the sealing sleeve (8), and a sealing ring 2 is provided between the sealing sleeve (8) and the support plate (14). The pressure detector is a pressure gauge (15).

3. The automatic and rapid detection device for gas cylinders according to claim 1, characterized in that: A limit cylinder (12) is fixed on the frame between the pressing mechanism and the lifting and moving mechanism, and a limit plate (6) is fixed on the top of the piston rod of the limit cylinder (12).

4. The automatic and rapid detection device for gas cylinders according to claim 1 or 3, characterized in that: The clamping mechanism includes a clamping bracket (2) fixed on the frame of the roller conveyor, a clamping cylinder (3) fixed on the top of the clamping bracket (2), and an arc-shaped clamping plate (4) fixed at the bottom piston rod end of the clamping cylinder (3).

5. The automatic and rapid detection device for gas cylinders according to claim 4, characterized in that: A rubber layer is fixed on the bottom wall of the clamping plate (4).

6. The automatic and rapid detection device for gas cylinders according to claim 1 or 3, characterized in that: The lifting and moving mechanism includes a mounting plate (13) fixed on the front and rear sides of the frame of the roller conveyor. A horizontal moving slide rail is fixed on the top of the mounting plate (13). A moving slider is provided on the moving slide rail. A moving slide plate (10) is fixed on the top of the moving slider. A moving cylinder (11) is hinged to the moving slide plate (10). The moving cylinder (11) is fixed on the mounting plate (13). A gantry frame (7) is fixed between the moving slide plates (10) on the front and rear sides. A lifting mechanism connecting the support plate (14) is provided on the gantry frame (7).

7. The automatic rapid detection device for gas cylinders according to claim 6, characterized in that: The lifting mechanism includes a lifting slide rail (19) fixed on the inner wall of the gantry (7), a lifting slide rail (19) connected to a lifting slider, a fixing plate (18) fixed between the lifting slider and the support plate (14), a lifting adjustment cylinder (5) fixed in the middle of the gantry (7), and the bottom piston rod end of the lifting adjustment cylinder (5) fixed to the support plate (14).

8. The automatic and rapid detection device for gas cylinders according to claim 6, characterized in that: The bottom of the support plate (14) is provided with a clearance plane.

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