A seamless cylinder water pressure detection device

Abstract

The utility model discloses a seamless gas cylinder water pressure detection device, it relates to detection equipment technical field, including bottom plate, vertical board, clamp, moving plate, carousel, first injection head, a plurality of second injection head and detection connector, the vertical board fixed setting is in the back of bottom plate upper surface, the center position of vertical board left and right sides is fixed with side plate respectively, and a pair of clamp is arranged on the side plate respectively and can be clamped with the bottle body of seamless gas cylinder, the upper center position of vertical board is equipped with the installation mouth, the utility model discloses a plurality of injection head lower end is different, and the seamless gas cylinder of different caliber is adapted, and the upper end shape is same, can be adapted with first injection head, through the two -stage connection transition of first injection head and second injection head, can make detection connector with the seamless gas cylinder of different caliber adaptation, and the adaptability of detection device is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a seamless gas cylinder water pressure testing device. Background Technology

[0002] Seamless gas cylinders (such as seamless steel cylinders and seamless aluminum alloy cylinders) are widely used in industrial gas storage and transportation (such as oxygen, nitrogen, argon, hydrogen, and natural gas), fire fighting, medical, diving, and energy fields due to their excellent pressure resistance and safety. As special equipment that withstands high pressure, their safety performance is paramount. Regular hydrostatic testing is a mandatory inspection item required by regulations in various countries (such as China's "Technical Regulations for Gas Cylinder Safety," the US DOT standard, and the EU's TPED directive). The purpose is to test the strength, tightness (leakage), and residual deformation rate of the gas cylinder under test pressure to ensure its safe use.

[0003] Currently, the commonly used water pressure testing method in the industry is to fill the gas cylinder with water, connect it to a dedicated water pressure testing bench, use a high-pressure water pump to increase the pressure to the specified test pressure (usually 1.5 times or higher than the nominal working pressure), hold the pressure for a certain period of time, release the pressure, and measure the residual deformation.

[0004] However, existing water pressure testing devices have a significant limitation: they are typically designed for seamless gas cylinders of specific models and nominal diameters. The structural dimensions of their core connecting components (such as sealing joints and quick-connect interfaces) are fixed, allowing for reliable sealing and pressure resistance only with cylinder necks of specific sizes. This reflects the poor applicability of existing technology. When testing agencies need to test gas cylinders of different models and diameters, they must frequently replace the matching dedicated connector assemblies. This process usually involves multiple steps, including disassembling the old components, finding components to match the new cylinder, installing the new components, and readjusting or even recalibrating the equipment. Frequent component replacement increases the workload and complexity for operators, resulting in low replacement efficiency. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides a seamless gas cylinder water pressure testing device. Multiple injection heads have different lower ends to adapt to seamless gas cylinders of different diameters, while their upper ends are identical in shape to be compatible with a first injection head. Through a two-stage connection between the first and second injection heads, the testing connector can be adapted to seamless gas cylinders of different diameters, improving the device's adaptability. Simultaneously, a different second injection head is selected by rotating a turntable driven by a motor. The first and second injection heads are connected to the seamless gas cylinder by the driving action of the first and second cylinders, resulting in quick connection, reduced labor intensity, and improved work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seamless gas cylinder water pressure testing device, comprising a base plate, a vertical plate, clamps, a movable plate, a turntable, a first injection head, multiple second injection heads, and a testing connector. The vertical plate is fixedly mounted on the rear side of the upper surface of the base plate. Side plates are fixedly mounted at the center of the left and right sides of the vertical plate. A pair of clamps are respectively mounted on the side plates and can clamp the body of the seamless gas cylinder. An installation opening is provided at the center of the upper part of the vertical plate. The left and right ends of the movable plate are vertically slidably connected to the left and right sidewalls of the installation opening via sliding components. A first cylinder is provided at the top of the vertical plate, and the telescopic end of the first cylinder passes through the installation opening and is fixedly connected to the upper surface of the movable plate. A horizontal plate is fixedly mounted on the front end face of the movable plate. A second cylinder is installed on the horizontal plate, with its telescopic end extending to the bottom of the horizontal plate. The first injection head is fixedly connected to the telescopic end of the second cylinder. The detection connector is connected to the first injection head. A motor is fixedly installed at the center of the bottom surface of the moving plate. The output end of the motor is fixedly connected to the center of the upper surface of the turntable. The upper surface of the turntable is rotatably connected to the bottom surface of the moving plate through a limiting component. The limiting component can ensure stable rotation of the turntable in the horizontal plane. Multiple second injection heads are arranged in a circular matrix on the turntable. The lower ends of the multiple second injection heads have different specifications and can be adapted to various seamless gas cylinders of different diameters. The upper ends of the multiple second injection heads have the same specifications and are adapted to the first injection head. The first injection head, the seamless gas cylinder, and the selected second injection head are on the same axis.

[0007] Preferably, the clamp includes a third cylinder and a V-shaped clamp. The third cylinder is fixedly mounted on the side plate with its telescopic end facing the seamless gas cylinder. The V-shaped clamp is fixedly connected to the telescopic end of the third cylinder. The third cylinders on the pair of side plates work synchronously and can drive the two V-shaped clamps to clamp and fix the seamless gas cylinder.

[0008] Preferably, the sliding assembly includes a pair of sliders and a pair of grooves. The pair of grooves are vertically opened on the left and right sidewalls of the mounting opening, and the pair of sliders are fixedly disposed at the left and right ends of the movable plate, with the sliders slidably connected to the grooves.

[0009] Preferably, the limiting component includes multiple connecting rods, multiple sliding bodies, and an annular groove. The annular groove is formed on the upper surface of the turntable. The upper ends of the multiple connecting rods are fixedly disposed on the lower bottom surfaces of the moving plate and the horizontal plate. The lower ends of the connecting rods are fixedly connected to the slider. The sliding bodies are slidably connected to the annular groove.

[0010] Preferably, a concave arc-shaped limiting groove is provided on the base plate at the position corresponding to the bottom of the seamless gas cylinder.

[0011] Preferably, the connection between the upright plate and the base plate is provided with reinforcing ribs.

[0012] Preferably, the inner wall of the V-shaped clamp is provided with a rubber anti-slip pad.

[0013] This utility model provides a seamless gas cylinder water pressure testing device, which has the following beneficial effects: 1. This utility model has multiple injection heads with different lower ends to adapt to seamless gas cylinders of different diameters, and the same upper shape to adapt to the first injection head. Through the two-stage connection between the first and second injection heads, the detection connector can be adapted to seamless gas cylinders of different diameters, improving the adaptability of the detection device. At the same time, different second injection heads are selected by rotating the turntable driven by the motor. The first and second injection heads are connected to the seamless gas cylinder by the driving work of the first and second cylinders. The connection is quick, reduces the labor intensity of personnel, and improves work efficiency. 2. The clamp in this utility model uses a third cylinder and a V-shaped clamping plate to clamp the seamless gas cylinder, which is highly applicable, simple in structure, and easy to repair and maintain; a reinforcing rib is provided between the upright plate and the bottom to improve the stability of the entire device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the entire seamless gas cylinder water pressure testing device of this utility model; Figure 2 This is a top view of the turntable in this utility model.

[0015] In the diagram: 1. Limiting groove; 2. Side plate; 3. Third cylinder; 4. Mounting port; 5. Turntable; 6. First injection head; 7. Detection connector; 8. Slider; 9. Slide groove; 10. Second cylinder; 11. Horizontal plate; 12. First cylinder; 13. Moving plate; 14. Motor; 15. Connecting rod; 16. Sliding body; 17. Annular groove; 18. Second injection head; 19. Vertical plate; 20. V-shaped clamp; 21. Reinforcing rib; 22. Base plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-2As shown, a seamless gas cylinder water pressure testing device includes a base plate 22, a vertical plate 19, clamps, a movable plate 13, a turntable 5, a first injection head 6, multiple second injection heads 18, and a testing connector 7. The vertical plate 19 is fixedly installed on the rear side of the upper surface of the base plate 22. Side plates 2 are fixedly installed at the center of the left and right sides of the vertical plate 19, respectively. A pair of clamps are respectively installed on the side plates 2 and can clamp the body of the seamless gas cylinder. An installation port 4 is opened at the center of the upper part of the vertical plate 19. The left and right ends of the movable plate 13 are vertically slidably connected to the left and right side walls of the installation port 4 through sliding components. A first cylinder 12 is provided at the top of the vertical plate 19, and the telescopic end of the first cylinder 12 extends through the installation port 4. The first injection head 6 is fixedly connected to the upper surface of the moving plate 13. A horizontal plate 11 is fixedly installed on the front end face of the moving plate 13. A second cylinder 10 is installed on the horizontal plate 11, and the telescopic end of the second cylinder 10 extends through to the bottom of the horizontal plate 11. The first injection head 6 is fixedly connected to the telescopic end of the second cylinder 10. The detection connector 7 is connected to the first injection head 6. A motor 14 is fixedly installed at the center of the bottom surface of the moving plate 13. The output end of the motor 14 is fixedly connected to the center of the upper surface of the turntable 5. The upper surface of the turntable 5 is rotatably connected to the bottom surface of the moving plate 13 through a limiting component. The limiting component can ensure the stable rotation of the turntable 5 in the horizontal plane. Multiple second injection heads 18 are arranged in a circular matrix on the turntable 5. The upper part of the multiple second injection heads 18 has different lower end specifications and can be adapted to various seamless gas cylinders of different diameters. The upper ends of the multiple second injection heads 18 have the same specifications and are adapted and connected to the first injection head 6. The first injection head 6, the seamless gas cylinder, and the selected second injection head 18 are on the same axis. The clamp includes a third cylinder 3 and a V-shaped clamping plate 20. The third cylinder 3 is fixedly mounted on the side plate 2 with its telescopic end facing the seamless gas cylinder. The V-shaped clamping plate 20 is fixedly connected to the telescopic end of the third cylinder 3. The third cylinders 3 on a pair of side plates 2 work synchronously and can drive the two V-shaped clamping plates 20 to clamp and fix the seamless gas cylinder. The sliding assembly includes a pair of sliders 8 and a pair of sliding grooves 9. The pair of sliding grooves 9 respectively A pair of sliders 8 are fixedly installed on the left and right sides of the mounting port 4, respectively, and are slidably connected to the sliding groove 9. The limiting assembly includes multiple connecting rods 15, multiple sliding bodies 16, and an annular groove 17. The annular groove 17 is opened on the upper surface of the turntable 5. The upper ends of the multiple connecting rods 15 are fixedly installed on the lower bottom surfaces of the moving plate 13 and the horizontal plate 11. The lower ends of the connecting rods 15 are fixedly connected to the sliders 8. The sliding bodies 16 are slidably connected to the annular groove 17. A concave arc-shaped limiting groove 1 is opened on the bottom plate 22 corresponding to the bottom of the seamless gas cylinder. A reinforcing rib 21 is provided at the connection between the upright plate 19 and the bottom plate 22. A rubber anti-slip pad is provided on the inner side wall of the V-shaped clamping plate 20.

[0018] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows: According to the instruction manual Figure 1-2 As can be seen, during operation, the seamless gas cylinder is placed on the base plate 22 and fixed by a clamp. Since multiple second injection heads 18 are arranged in a circular matrix on the turntable 5, and the lower ends of these second injection heads 18 have different specifications and can accommodate various seamless gas cylinders of different diameters, the motor 14 operates, driving the turntable 5 to rotate, thereby selecting the second injection head 18 corresponding to the seamless gas cylinder and aligning it with the top of the cylinder opening. Specification markings can be designed on the side surface of the turntable 5 corresponding to the positions of the second injection heads 18 for easy observation. Of course, existing technology can also achieve fully automated selection. The first cylinder 12 operates, and its telescopic end drives the moving plate 13 downwards, thereby driving the turntable 5, connected by the motor 14 and the limiting assembly, downwards. Since the first injection head 6, the seamless gas cylinder, and the selected second injection head 18 are on the same axis, the second injection head 18 above the cylinder opening moves downwards to connect with the cylinder opening. Since the upper ends of the multiple second injection heads 18 are identical and compatible with the first injection head 6, the second cylinder 10 is activated to drive the first injection head 6 downwards, enabling it to connect with the upper ends of the second injection heads 18. The first injection head 6 is connected to the test connector 7, which is connected to an external hydrostatic test bench. This connection is existing technology. Water is injected into the seamless gas cylinder through the test connector 7, the first injection head 6, and the second injection heads 18. The high-pressure water pump in the hydrostatic test bench then raises the pressure to the specified test pressure. In this invention, multiple injection heads have different lower end specifications to adapt to seamless gas cylinders of different diameters, while their upper ends have the same shape and specifications to fit the first injection head 6. Through a two-stage connection between the first injection head 6 and the second injection head 18, the detection connector 7 can be adapted to seamless gas cylinders of different diameters, improving the adaptability of the detection device. Simultaneously, different second injection heads 18 are selected by rotating the turntable 5 driven by the motor 14. The first injection head 6 and the second injection head 18 are connected to the seamless gas cylinder by the driving operation of the first cylinder 12 and the second cylinder 10, resulting in quick connection, reduced labor intensity, and improved work efficiency. This invention considers the pressure that the detection connector 7, the first injection head 6, and the second injection head 18 can withstand, as well as the sealing and stability of the connection. Existing technologies can be used to implement this invention, and the external connections of the cylinders and the detection connector 7 are also available in existing technologies.

[0019] The clamp includes a third cylinder 3 and a V-shaped clamping plate 20. The third cylinder 3 is fixedly mounted on the side plate 2 with its telescopic end facing the seamless gas cylinder. The V-shaped clamping plate 20 is fixedly connected to the telescopic end of the third cylinder 3. The third cylinders 3 on a pair of side plates 2 work synchronously and can drive the two V-shaped clamping plates 20 to clamp and fix the seamless gas cylinder. It has strong applicability, simple structure, and is easy to repair and maintain. In addition, the inner side wall of the V-shaped clamping plate 20 is provided with a rubber anti-slip pad, which increases the friction with the seamless gas cylinder while avoiding damage to the seamless gas cylinder.

[0020] The sliding assembly includes a pair of sliders 8 and a pair of grooves 9. The pair of grooves 9 are vertically opened on the left and right side walls of the mounting port 4, and the pair of sliders 8 are fixedly installed at the left and right ends of the moving plate 13. The sliders 8 are slidably connected to the grooves 9 to ensure the stability of the vertical movement of the moving plate 13.

[0021] The limiting component includes multiple connecting rods 15, multiple sliding bodies 16, and an annular groove 17. The annular groove 17 is formed on the upper surface of the turntable 5. The upper ends of the multiple connecting rods 15 are fixedly set on the lower bottom surfaces of the moving plate 13 and the horizontal plate 11. The lower ends of the connecting rods 15 are fixedly connected to the slider 8. The sliding bodies 16 are slidably connected to the annular groove 17. Preferably, there are three connecting rods 15 and three sliding bodies 16, which are distributed to form a triangle to ensure the stability of the turntable 5 when it rotates and the sealing of the bottle mouth.

[0022] Among them, a concave arc-shaped limiting groove 1 is opened on the plate corresponding to the bottom of the seamless gas cylinder. The seamless gas cylinder is placed in the limiting groove 1 to improve the stability of the bottom.

[0023] Among them, a reinforcing rib 21 is provided at the connection between the upright plate 19 and the base plate 22 to improve the stability of the entire device.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seamless cylinder water pressure detection device, characterized by, The system includes a base plate (22), a vertical plate (19), clamps, a movable plate (13), a turntable (5), a first injection head (6), multiple second injection heads (18), and a testing connector (7). The vertical plate (19) is fixedly installed on the rear side of the upper surface of the base plate (22). Side plates (2) are fixedly installed at the center of the left and right sides of the vertical plate (19). A pair of clamps are respectively installed on the side plates (2) and the pair of clamps can clamp the body of the seamless gas cylinder. An installation port (4) is provided at the center of the upper part. The left and right ends of the movable plate (13) are vertically slidably connected to the left and right side walls of the installation port (4) through sliding components. A first cylinder (12) is provided at the top of the upright plate (19), and the telescopic end of the first cylinder (12) passes through the installation port (4) and is fixedly connected to the upper surface of the movable plate (13). A horizontal plate (11) is fixedly provided on the front end face of the movable plate (13), and a second cylinder (10) is provided on the horizontal plate (11). The telescopic end of the second cylinder (10) extends to the bottom of the horizontal plate (11). The first injection head (6) is fixedly connected to the telescopic end of the second cylinder (10). The detection connector (7) is connected to the first injection head (6). A motor (14) is fixedly installed at the center of the bottom surface of the moving plate (13). The output end of the motor (14) is fixedly connected to the center of the upper surface of the turntable (5). The upper surface of the turntable (5) is rotatably connected to the bottom surface of the moving plate (13) through a limiting component. The limiting component can ensure that the turntable (5) rotates stably in the horizontal plane. Multiple second injection heads (18) are arranged in a ring matrix on the turntable (5). The lower end of the multiple second injection heads (18) has different specifications and can be adapted to various seamless gas cylinders of different diameters. The upper end of the multiple second injection heads (18) has the same specifications and is adapted to the first injection head (6). The first injection head (6), the seamless gas cylinder, and the selected second injection head (18) are on the same axis.

2. The seamless cylinder water pressure detection device according to claim 1, wherein The clamp includes a third cylinder (3) and a V-shaped clamp (20). The third cylinder (3) is fixedly mounted on the side plate (2) with its telescopic end facing the seamless gas cylinder. The V-shaped clamp (20) is fixedly connected to the telescopic end of the third cylinder (3). The third cylinders (3) on a pair of side plates (2) work synchronously and can drive the two V-shaped clamps (20) to clamp and fix the seamless gas cylinder.

3. The seamless cylinder water pressure detection device according to claim 1, characterized by The sliding assembly includes a pair of sliders (8) and a pair of grooves (9). The pair of grooves (9) are vertically opened on the left and right side walls of the mounting port (4), and the pair of sliders (8) are fixedly installed at the left and right ends of the movable plate (13). The sliders (8) are slidably connected to the grooves (9).

4. The seamless cylinder water pressure detection device according to claim 1, characterized by The limiting assembly includes multiple connecting rods (15), multiple sliding bodies (16), and an annular groove (17). The annular groove (17) is opened on the upper surface of the turntable (5). The upper ends of the multiple connecting rods (15) are fixedly set on the lower bottom surfaces of the moving plate (13) and the horizontal plate (11). The lower ends of the connecting rods (15) are fixedly connected to the slider (8). The sliding bodies (16) are slidably connected to the annular groove (17).

5. The seamless gas cylinder water pressure testing device according to claim 1, characterized in that, The base plate (22) has a concave arc-shaped limiting groove (1) at the position corresponding to the bottom of the seamless gas cylinder.

6. The seamless gas cylinder water pressure testing device according to claim 1, characterized in that, A reinforcing rib (21) is provided at the connection between the upright plate (19) and the bottom plate (22).

7. The seamless gas cylinder water pressure testing device according to claim 2, characterized in that, The inner wall of the V-shaped clamp (20) is provided with a rubber anti-slip pad.

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