Fixing device for pressure test of gas cylinder

Abstract

The utility model relates to test auxiliary tool field discloses a kind of fixing device for gas cylinder pressure test, including side plate, base, the side plate is fixedly connected in the upper surface rear side of base, the front surface of side plate is slidably connected with fixed plate by sliding assembly, the fixed plate is fixedly connected with mounting shell by the connecting plate of its front surface, the upper surface of mounting shell is equipped with three guide slots, three The guide slot is distributed in circle array and penetrates the lateral wall of mounting shell, the mounting shell is rotatably connected with cylinder by the three circular grooves of its outer wall being equipped.The utility model in the present application, by jaw, flat thread, bevel gear one, bevel gear two, rotating rod, can be adjusted bevel gear two in any one direction by rotating rod, so that the jaw of three directions is synchronously linked and adjusted, saves the cumbersome procedure of adjusting multiple clamping components in traditional device respectively, greatly improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing auxiliary tools, and in particular to a fixing device for gas cylinder pressure testing. Background Technology

[0002] Pressure testing is a crucial process in the production, inspection, and use of gas cylinders, ensuring their safety performance by simulating a high-pressure environment to detect potential hazards such as leaks, deformation, and ruptures.

[0003] In gas cylinder pressure testing, the effectiveness of cylinder fixation directly affects the safety and accuracy of the test. Traditional cylinder clamping devices often employ independent adjustment in one or more directions, requiring individual adjustment of each clamping component. This is not only time-consuming and labor-intensive but also prone to instability due to uneven clamping forces. When the cylinder is subjected to high pressure during testing, even slight loosening or force deviation in the fixing device can cause the cylinder to shake, shift, or even tip over. This can range from affecting the accuracy of the test data to causing safety accidents such as high-pressure gas leaks. Traditional devices are particularly incompatible with cylinders of different diameters and shapes, often requiring clamp replacement or repeated adjustments, significantly reducing testing efficiency.

[0004] In view of this, I designed a fixing device suitable for gas cylinder pressure testing, which fundamentally solves the problems of cumbersome operation, uneven clamping force, and poor adaptability of traditional devices, and provides a stable and reliable fixing guarantee for gas cylinder pressure testing. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fixing device for gas cylinder pressure testing, which aims to improve the problems of "cumbersome operation, uneven clamping force, and poor adaptability of traditional devices" in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fixing device for gas cylinder pressure testing, comprising a side plate and a base, wherein the side plate is fixedly connected to the rear side of the upper surface of the base, and a fixing plate is slidably connected to the front surface of the side plate via a sliding assembly; a mounting shell is fixedly connected to the fixing plate via a connecting plate on its front surface; three guide grooves are provided on the upper surface of the mounting shell, the three guide grooves are arranged in a circumferential array and penetrate the side wall of the mounting shell; cylinders are rotatably connected to the mounting shell via three circular grooves on its outer wall, and the three cylinders are exposed outside the mounting shell. One end of each cylinder is fixedly connected to a limiting ring, and the other end of each of the three cylinders is fixedly connected to a bevel gear two. A bevel gear one is meshed above the three bevel gear twos. A ring is fixedly connected above the bevel gear one. A planar thread is formed on the upper surface of the ring. Three pawls arranged in a circumferential array are slidably connected above the planar thread. The bevel gear two, bevel gear one, ring, and planar thread are all located inside the mounting housing. A bottom cover is fixedly connected to the bottom of the mounting housing by bolts. A drive assembly is rotatably connected to the limiting ring through a pentagonal groove formed in its center.

[0007] As a further description of the above technical solution:

[0008] The sliding component includes a T-slot, which is formed on the front surface of the side plate. A T-shaped slider is slidably connected in the T-slot, and the T-shaped slider is fixedly connected to the rear side of the fixed plate.

[0009] As a further description of the above technical solution:

[0010] The front surface of the side plate has several sets of holes, and the surface of the fixing plate has four sets of through holes. The through holes on the surface of the fixing plate correspond to the holes on the surface of the side plate, and fixing bolts are installed inside the through holes on the surface of the fixing plate.

[0011] As a further description of the above technical solution:

[0012] A movable component is rotatably connected to the lower surface of the base. The movable component includes four sets of omnidirectional wheels, which are located at the four corners of the bottom of the base.

[0013] As a further description of the above technical solution:

[0014] The upper surface of the base is provided with a positioning groove.

[0015] As a further description of the above technical solution:

[0016] All three jaws are adapted to the three guide grooves, and both sides of the jaws are slidably connected in the guide grooves.

[0017] As a further description of the above technical solution:

[0018] The lower surfaces of the three jaws are provided with threaded grooves that engage with the planar threads.

[0019] As a further description of the above technical solution:

[0020] The drive assembly includes a rotating rod, and a pentagonal prism is fixedly connected to the middle of the rotating rod. The pentagonal prism is adapted to a pentagonal groove opened at the center of the limiting ring.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the bevel gear 1, bevel gear 2, and rotating rod can be adjusted in any position by adjusting bevel gear 2 in any direction, so that the three-position bevel gears can be adjusted synchronously. This eliminates the tedious steps of adjusting multiple clamping components separately in traditional devices, greatly improving work efficiency. Moreover, the synchronous adjustment in the three positions can ensure that the clamping force in each direction is always balanced, avoiding force deviation caused by individual adjustment, preventing the gas cylinder from loosening or shifting due to uneven force, effectively improving the stability of the gas cylinder and increasing operational safety.

[0023] 2. In this utility model, the T-shaped slider, fixing plate and bolts enable the device to adapt to gas cylinders of different heights and sizes, eliminating the need to change the fixing device for different gas cylinders, thus lowering the barrier to entry for the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the fixing device for gas cylinder pressure testing in this utility model;

[0025] Figure 2 This is a three-dimensional top view of the clamping mechanism of the fixing device for gas cylinder pressure testing in this utility model.

[0026] Figure 3 This is a three-dimensional, top-view diagram showing the disassembled structure of the clamping mechanism of the gas cylinder pressure testing fixing device in this utility model.

[0027] Figure 4 This is a three-dimensional structural disassembly diagram of the bevel gear and the chuck of the fixing device for gas cylinder pressure testing in this utility model.

[0028] Legend:

[0029] 1. Side plate; 2. Base; 3. Casters; 4. Mounting shell; 5. Bottom cover; 6. Ring; 7. Flat thread; 8. Claw; 9. Bevel gear one; 10. Bevel gear two; 11. Cylinder; 12. Limiting ring; 13. Pentagonal prism; 14. Rotating rod; 15. Guide groove; 16. Circular groove; 17. Connecting plate; 18. Fixing plate; 19. T-slider; 20. T-slot; 21. Positioning groove. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 - Figure 4 This utility model provides an embodiment of a gas cylinder pressure testing fixing device, including a side plate 1 and a base 2. The side plate 1 is fixedly connected to the rear side of the upper surface of the base 2. The front surface of the side plate 1 is slidably connected to a fixing plate 18 via a sliding assembly. The fixing plate 18 is fixedly connected to a mounting shell 4 via a connecting plate 17 on its front surface. The upper surface of the mounting shell 4 has three guide grooves 15, which are arranged in a circumferential array and penetrate the side wall of the mounting shell 4. The mounting shell 4 is rotatably connected to three circular grooves 16 on its outer wall. The ends of the three cylinders 11 exposed outside the mounting shell 4 are fixedly connected to limit rings 12. The other ends of the three cylinders 11 are fixedly connected to bevel gears 10. The upper parts of the three bevel gears 10 are meshed with bevel gears 9. The upper parts of the bevel gears 9 are fixedly connected to... A circular ring 6 is attached, and a planar thread 7 is formed on the upper surface of the circular ring 6. Three claws 8 arranged in a circular array are slidably connected above the planar thread 7. The lower surface of each of the three claws 8 is provided with a threaded groove that meshes with the planar thread 7. The planar thread 7 drives the three claws 8 to move simultaneously toward the center or outward. Each of the three claws 8 is adapted to three guide grooves 15, and both sides of the claws 8 are slidably connected in the guide grooves 15, allowing them to move radially along the guide grooves 15. The second bevel gear 10, the first bevel gear 9, the circular ring 6, and the planar thread 7 are all located inside the mounting shell 4. Rubber pads are provided on the inner wall of the mounting shell 4 and the contact surface between the claws 8 and the gas cylinder to reduce rigid collisions between the gas cylinder and the device, avoid scratching damage to the gas cylinder surface by the clamping mechanism, and increase the friction with the side wall of the gas cylinder through the rubber pads, thereby increasing the stability of the gas cylinder and the clamping mechanism.

[0032] Reference Figure 1 - Figure 4The bottom of the mounting shell 4 is fixedly connected to the bottom cover 5 by bolts. The limiting ring 12 is rotatably connected to the drive component through the pentagonal groove in its center. The drive component rotates the bevel gear 2 10, which drives the bevel gear 1 9 to rotate, thereby causing the planar thread 7 to drive the three jaws 8 to move synchronously. This allows the jaws 8 to move towards the center or outward at the same time, thus clamping or releasing the gas cylinder. The synchronous adjustment in the three directions can ensure that the clamping force in each direction is always balanced, avoiding force deviation caused by individual adjustment, preventing the gas cylinder from loosening or shifting due to uneven force, effectively improving the stability of the gas cylinder and increasing operational safety.

[0033] Reference Figure 2 - Figure 4 The drive assembly includes a rotating rod 14, with a pentagonal prism 13 fixedly connected to the middle of the rotating rod 14. The pentagonal prism 13 is adapted to the pentagonal groove opened in the center of the limiting ring 12. By manually rotating the bevel gear 10 in any position of the rotating rod 14, the three pawls 8 in all three positions can be adjusted synchronously. This structural design eliminates the tedious steps of adjusting multiple clamping components separately in traditional devices, greatly improving work efficiency.

[0034] Reference Figure 1 - Figure 4 The sliding component includes a T-slot 20, which is formed on the front surface of the side plate 1. A T-slider 19 is slidably connected in the T-slot 20 and is fixedly connected to the rear side of the fixed plate 18. The height of the clamping mechanism can be stably adjusted by sliding the T-slider 19 so that the device can adapt to gas cylinders of different heights and sizes. There is no need to change the device for different gas cylinders, which lowers the threshold for using the device.

[0035] Reference Figure 1 , Figure 2 The front surface of the side plate 1 has several sets of holes, and the surface of the fixing plate 18 has four sets of through holes. The through holes on the surface of the fixing plate 18 correspond to the holes on the surface of the side plate 1. Fixing bolts are installed inside the through holes on the surface of the fixing plate 18. By connecting the through holes on the surface of the fixing plate 18 with the holes at different heights on the surface of the side plate 1, the height of the clamping mechanism after adjustment can be fixed, preventing the clamping mechanism from slipping when the gas cylinder is pressure tested, and improving the stability of the device.

[0036] Reference Figure 1 The upper surface of the base 2 is provided with a positioning groove 21, and a rubber pad is provided in the positioning groove 21. The rubber pad has a certain elasticity and can adapt to the curvature of the bottom surface of the gas cylinder, and increase the friction with the bottom of the gas cylinder, thereby improving the stability between the gas cylinder and the device.

[0037] Reference Figure 1The lower surface of the base 2 is rotatably connected to a moving component, which includes four sets of universal wheels 3. The universal wheels 3 are located at the four corners of the bottom of the base 2. When the gas cylinder needs to be moved, the gas cylinder can be rotated directly through the device without the need for secondary installation of the gas cylinder. This improves the transfer speed of the gas cylinder and solves the problem that when the work position is changed, the gas cylinder needs to be transferred and reinstalled, which leads to a decrease in work efficiency.

[0038] Working principle: In use, the gas cylinder is placed downwards into the through groove in the center of the mounting shell 4, so that the bottom of the gas cylinder contacts the positioning groove 21 on the upper surface of the base 2. The height of the clamping mechanism is adjusted by sliding the T-shaped slider 19, and the through hole on the surface of the fixing plate 18 is aligned with the hole at a suitable height on the surface of the side plate 1. The fixing bolts inside the through hole on the surface of the fixing plate 18 are used to connect it to the side plate 1, thereby fixing the height of the clamping mechanism after adjustment. At this time, the angle of the rotating rod 14 is slightly adjusted so that the pentagonal prism 13 is aligned with the center of any of the limiting rings 12. Align and insert the edge slot. By rotating the rotating rod 14 counterclockwise, the second bevel gear 10 also rotates counterclockwise, driving the first bevel gear 9, the ring 6, and the flat thread 7 to rotate clockwise. The flat thread 7 drives the three jaws 8 to move synchronously towards the center within the guide groove 15 of the mounting shell 4, so that the three jaws 8 simultaneously press against the surface of the gas cylinder, clamping and fixing the gas cylinder synchronously from three directions. If it is necessary to remove the gas cylinder, simply rotate the rotating rod 14 clockwise, so that the three jaws 8 move synchronously outward within the guide groove 15 of the mounting shell 4.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing device for gas cylinder pressure testing, comprising a side plate (1) and a base (2), characterized in that: The side plate (1) is fixedly connected to the rear side of the upper surface of the base (2). The front surface of the side plate (1) is slidably connected to a fixed plate (18) via a sliding assembly. The fixed plate (18) is fixedly connected to a mounting shell (4) via a connecting plate (17) on its front surface. The upper surface of the mounting shell (4) is provided with three guide grooves (15). The three guide grooves (15) are arranged in a circumferential array and penetrate the side wall of the mounting shell (4). The mounting shell (4) is rotatably connected to cylinders (11) via three circular grooves (16) on its outer wall. The ends of the three cylinders (11) exposed outside the mounting shell (4) are fixedly connected to limit rings (12). The other end of each of the three bevel gears (10) is fixedly connected to a bevel gear (9) meshing above the three bevel gears (10). A ring (6) is fixedly connected above the bevel gear (9). A planar thread (7) is provided on the upper surface of the ring (6). Three pawls (8) arranged in a circular array are slidably connected above the planar thread (7). The bevel gears (10), bevel gear (9), ring (6) and planar thread (7) are all located inside the mounting shell (4). The bottom of the mounting shell (4) is fixedly connected to a bottom cover (5) by bolts. The limiting ring (12) is rotatably connected to a drive assembly through a pentagonal groove opened in its center.

2. The fixing device for gas cylinder pressure testing according to claim 1, characterized in that: The sliding assembly includes a T-slot (20) which is formed on the front surface of the side plate (1). A T-slider (19) is slidably connected in the T-slot (20) and is fixedly connected to the rear side of the fixed plate (18).

3. The fixing device for gas cylinder pressure testing according to claim 1, characterized in that: The front surface of the side plate (1) has several sets of holes, and the surface of the fixing plate (18) has four sets of through holes. The through holes on the surface of the fixing plate (18) correspond to the holes on the surface of the side plate (1), and fixing bolts are provided inside the through holes on the surface of the fixing plate (18).

4. The fixing device for gas cylinder pressure testing according to claim 1, characterized in that: The lower surface of the base (2) is rotatably connected to a moving component, which includes four sets of universal wheels (3), and the universal wheels (3) are located at the four bottom corners of the base (2).

5. The fixing device for gas cylinder pressure testing according to claim 1, characterized in that: The upper surface of the base (2) is provided with a positioning groove (21).

6. The fixing device for gas cylinder pressure testing according to claim 1, characterized in that: All three claws (8) are adapted to the three guide grooves (15), and both sides of the claws (8) are slidably connected in the guide grooves (15).

7. The fixing device for gas cylinder pressure testing according to claim 1, characterized in that: The lower surfaces of the three jaws (8) are provided with threaded grooves that mesh with the planar thread (7).

8. The fixing device for gas cylinder pressure testing according to claim 1, characterized in that: The drive assembly includes a rotating rod (14), and a pentagonal prism (13) is fixedly connected to the middle of the rotating rod (14). The pentagonal prism (13) is adapted to the pentagonal groove opened at the center of the limiting ring (12).

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