A telescopic fixing device for high-pressure gas cylinders

Abstract

The utility model discloses a telescopic fixing device of high pressure gas cylinder belongs to high pressure gas cylinder fixing device technical field, including bottom plate, the top surface fixed connection of bottom plate has six risers, and the top of six risers is provided with telescopic mechanism, and the back three risers are provided with clamping mechanism respectively, and the bottom of bottom plate is provided with a plurality of first screw holes, and the inner chamber of a plurality of first screw holes all threadedly bushing has supporting stud. In the utility model, through the self -locking castor of bottom plate bottom, the device is removed, when the device moves to the predetermined position, rotates the supporting foot and drives the supporting stud to rotate, drives the supporting foot to move down through the thread cooperation between supporting stud and first screw hole, makes the bottom surface of supporting foot and ground contact, utilizes supporting foot and supporting stud and assists the self -locking castor to support the device, realizes the function that the device is conveniently moved.

Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure gas cylinder fixing devices, and more specifically, to a retractable fixing device for high-pressure gas cylinders. Background Technology

[0002] High-pressure gas cylinders are special pressure vessels classified according to their nominal working pressure. They are mainly used to store and transport compressed gases and high-pressure liquefied gases. Their main structure includes two types: seamless steel cylinders and composite material cylinders. The former are mostly made of killed steel or high-quality alloy steel, while the latter commonly use glass fiber winding technology. High-pressure gas cylinders need to be supported and fixed during use.

[0003] A search revealed a utility model patent with publication number CN219735012U, which discloses a retractable fixing device for high-pressure gas cylinders. The device includes a base, a height adjustment frame, and a flatbed trolley. The height adjustment frame is mounted on the base and provides space for placing the high-pressure gas cylinder and restricting its circumference. One side of the height adjustment frame can be opened and closed. The flatbed trolley is located on the base and is slidably connected to it. When the flatbed trolley carrying the high-pressure gas cylinder moves towards the height adjustment frame, one side of the frame opens; when the high-pressure gas cylinder is placed in the frame, one side closes. This device is simple in structure, easy to use, safe and reliable, and adaptable to high-pressure gas cylinders of different heights. However, the aforementioned patent has the following shortcomings: it is not convenient to move the device, resulting in poor usability; furthermore, it is not convenient to fix gas cylinders of different outer diameters, leading to poor stability. Therefore, we propose a retractable fixing device for high-pressure gas cylinders. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a retractable fixing device for high-pressure gas cylinders.

[0005] To solve the above problems, the present invention adopts the following technical solution: a retractable fixing device for a high-pressure gas cylinder, comprising a base plate, six vertical pipes fixedly connected to the top surface of the base plate, a telescopic mechanism provided at the top of the six vertical pipes, a clamping mechanism provided between the three rear vertical pipes, a plurality of first screw holes provided on the bottom surface of the base plate, a support stud threaded into the inner cavity of each of the plurality of first screw holes, a support foot fixedly connected to the bottom end of each of the plurality of support studs, and a plurality of self-locking casters fixedly installed on the bottom surface of the base plate.

[0006] In a preferred embodiment of this utility model, the clamping mechanism includes a movable box fixedly connected between two vertical pipes. A bidirectional lead screw is rotatably connected to the inner cavity of the movable box. Movable blocks are threaded onto the outer sides of both ends of the bidirectional lead screw. The ends of the two movable blocks extend to the outside of the movable box and are fixedly connected to clamping seats. A slot is provided on the inner side of each clamping seat. A support block is fixedly connected to the top surface of the inner cavity of the movable box. A worm gear is rotatably connected between the support block and the movable box. A worm wheel is fixedly sleeved on the middle of the bidirectional lead screw. The worm wheel and the worm gear mesh with each other. The end of the worm gear extends to the outside of the movable box and is fixedly connected to a knob.

[0007] As a preferred embodiment of this utility model, the telescopic mechanism includes square columns movably fitted inside six risers and mounting holes opened on the outside of four risers. Each of the four square columns has multiple second screw holes on its outer side. Bolts are fitted into the inner cavities of the mounting holes, and the ends of the bolts are threaded into the inner cavities of the second screw holes. A top frame is fixedly connected to the top of the six square columns.

[0008] As a preferred embodiment of this utility model, multiple connecting plates are fixedly connected between the two front and rear risers.

[0009] In a preferred embodiment of this utility model, the bottom and top surfaces of the movable block are respectively attached to the bottom and top surfaces of the inner cavity of the movable box.

[0010] In a preferred embodiment of this utility model, the outer side of the square column is in contact with the inner wall of the riser.

[0011] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, the device is moved by the self-locking casters at the bottom of the base plate. In addition, when the device moves to the predetermined position, the support foot is rotated to drive the support stud to rotate. The support foot moves down through the threaded engagement between the support stud and the first screw hole, so that the bottom surface of the support foot contacts the ground. The support foot and the support stud assist the self-locking casters in supporting the device, thus realizing the function of convenient movement of the device.

[0012] (2) In this utility model, when the high-pressure gas cylinder is placed on the base plate, the knob is turned to drive the worm to rotate. The meshing transmission between the worm and the worm wheel drives the bidirectional lead screw to rotate. The threaded engagement between the bidirectional lead screw and the two moving blocks drives the two clamping seats to move closer to each other, so that the gas cylinder is stuck between the slots on the two clamping seats, so as to clamp and fix the gas cylinder. At the same time, it realizes the fixation of gas cylinders with different outer diameters. Attached Figure Description

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

[0014] Figure 2 is an exploded view of the overall structure of this utility model.

[0015] Figure 3 is a schematic diagram of the riser structure of this utility model.

[0016] Figure 4 is a structural schematic diagram of the mobile box of this utility model.

[0017] Figure 5 is a cross-sectional schematic diagram of the mobile box of this utility model.

[0018] The following are the labels in the diagram: 1. Base plate; 2. Riser; 3. Telescopic mechanism; 4. Clamping mechanism; 5. First screw hole; 6. Support stud; 7. Support foot; 8. Self-locking caster; 9. Connecting plate; 10. Moving box; 11. Two-way lead screw; 12. Support block; 13. Worm gear; 14. Knob; 15. Worm wheel; 16. Moving block; 17. Clamping seat; 18. Slot; 19. Mounting hole; 20. Square column; 21. Second screw hole; 22. Top frame; 23. Bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0022] Please refer to Figures 1-5. A retractable fixing device for a high-pressure gas cylinder includes a base plate 1. Six vertical pipes 2 are fixedly connected to the top surface of the base plate 1. A telescopic mechanism 3 is provided at the top of the six vertical pipes 2. A clamping mechanism 4 is provided between the three rear vertical pipes 2 respectively. Multiple first screw holes 5 are provided on the bottom surface of the base plate 1. Support studs 6 are threaded into the inner cavity of the multiple first screw holes 5. Support feet 7 are fixedly connected to the bottom end of the multiple support studs 6. Multiple self-locking casters 8 are fixedly installed on the bottom surface of the base plate 1.

[0023] Specifically, please refer to Figures 1, 4, and 5. The clamping mechanism 4 includes a movable box 10 fixedly connected between the two risers 2. A bidirectional lead screw 11 is rotatably connected to the inner cavity of the movable box 10. Movable blocks 16 are threaded onto the outer sides of both ends of the bidirectional lead screw 11. The ends of the two movable blocks 16 extend to the outside of the movable box 10 and are fixedly connected to clamping seats 17. The inner side of the clamping seats 17 is provided with slots 18. A support block 12 is fixedly connected to the top surface of the inner cavity of the movable box 10. A worm gear 13 is rotatably connected between the support block 12 and the movable box 10. A worm wheel 15 is fixedly sleeved in the middle of the bidirectional lead screw 11. The worm wheel 15 and the worm gear 13 mesh with each other. The end of the worm gear 13 extends to the outside of the movable box 10 and is fixedly connected to a knob 14.

[0024] In this embodiment, a reverse self-locking mechanism is provided between the worm gear 13 and the worm wheel 15 to ensure that the bidirectional lead screw 11 will not rotate on its own, thereby ensuring the stability of the clamping seat 17 in clamping the high-pressure gas cylinder. The bidirectional lead screw 11 is provided with a screw hole that matches the moving block 16 to ensure smooth transmission between the moving block 16 and the bidirectional lead screw 11.

[0025] Specifically, please refer to Figures 1 to 3. The telescopic mechanism 3 includes square columns 20 that are movably fitted inside the six risers 2 and mounting holes 19 opened on the outside of the four risers 2. Each of the four square columns 20 has multiple second screw holes 21 on its outside. Each mounting hole 19 has a bolt 23 fitted inside its cavity. The end of the bolt 23 is threaded into the cavity of the second screw hole 21. A top frame 22 is fixedly connected to the top of the six square columns 20.

[0026] In this embodiment, the vertical tube 2 and the square column 20 are fixed by the cooperation of the mounting hole 19, the second screw hole 21 and the bolt 23.

[0027] Specifically, please refer to Figures 1 and 2. Multiple connecting plates 9 are fixedly connected between the two risers 2.

[0028] In this embodiment, a connecting plate 9 is used to reinforce the connection between the two risers 2.

[0029] Specifically, please refer to Figure 5. The bottom and top surfaces of the movable block 16 are respectively attached to the bottom and top surfaces of the inner cavity of the movable box 10.

[0030] In this embodiment, the inner wall of the movable box 10 is used to limit the movable block 16, so that the movable block 16 can only move along the axial direction of the bidirectional lead screw 11.

[0031] Specifically, please refer to Figures 1 and 2. The outer side of the square column 20 is in contact with the inner wall of the riser 2.

[0032] In this embodiment, the stability of the square column 20 being fitted into the inner cavity of the riser 2 is ensured.

[0033] Working Principle: In use, firstly, rotating the support foot 7 rotates the support stud 6. The threaded engagement between the support stud 6 and the first screw hole 5 moves the support foot 7 upwards, allowing the self-locking caster 8 to move the device. When the device reaches the desired position, rotating the support foot 7 in the opposite direction rotates the support stud 6. The threaded engagement between the support stud 6 and the first screw hole 5 moves the support foot 7 downwards, bringing its bottom surface into contact with the ground. This provides support for the base plate 1 using the support foot 7, support stud 6, and self-locking caster 8. Then, rotating the bolt 23 disengages its end from the inner cavity of the second screw hole 21, releasing the square column 20 from the vertical pipe 2. At this point, moving the top frame 22 up and down allows the square column 20 to extend and retract within the vertical pipe 2, adjusting the device's height. Next, aligning the second screw hole 21 on the square column 20 with the mounting hole 19 on the vertical pipe 2, and rotating the bolt 23 inserts its end into the second screw hole 21, thus securing the vertical pipe 2 and the square column 20. After fixing the cylinder between the two clamping seats 17, place the high-pressure gas cylinder on the base plate 1 and position it between the two clamping seats 17. Then, turn the knob 14 to rotate the worm gear 13. Through the meshing transmission between the worm gear 13 and the worm wheel 15, the double-acting screw 11 is rotated. Through the threaded engagement between the double-acting screw 11 and the two moving blocks 16, the two clamping seats 17 are brought closer to each other, so that the gas cylinder is clamped between the slots 18 on the two clamping seats 17, thus clamping and fixing the gas cylinder.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A retractable fixing device for a high-pressure gas cylinder, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is fixedly connected to six vertical pipes (2), and the top of the six vertical pipes (2) is provided with a telescopic mechanism (3). The three rear vertical pipes (2) are respectively provided with clamping mechanisms (4). The bottom surface of the base plate (1) is provided with multiple first screw holes (5). The inner cavity of the multiple first screw holes (5) is threaded with a support stud (6). The bottom end of the multiple support studs (6) is fixedly connected with a support foot (7). The bottom surface of the base plate (1) is fixedly installed with multiple self-locking casters (8).

2. The retractable fixing device for a high-pressure gas cylinder according to claim 1, characterized in that: The clamping mechanism (4) includes a movable box (10) fixedly connected between two risers (2). A bidirectional lead screw (11) is rotatably connected to the inner cavity of the movable box (10). Movable blocks (16) are threaded onto the outer sides of both ends of the bidirectional lead screw (11). The ends of the two movable blocks (16) extend to the outside of the movable box (10) and are fixedly connected to clamping seats (17). The inner side of the clamping seats (17) is provided with slots (18). A support block (12) is fixedly connected to the top surface of the inner cavity of the movable box (10). A worm gear (13) is rotatably connected between the support block (12) and the movable box (10). A worm wheel (15) is fixedly sleeved in the middle of the bidirectional lead screw (11). The worm wheel (15) and the worm gear (13) mesh with each other. The end of the worm gear (13) extends to the outside of the movable box (10) and is fixedly connected to a knob (14).

3. The retractable fixing device for a high-pressure gas cylinder according to claim 1, characterized in that: The telescopic mechanism (3) includes a square column (20) movably sleeved inside the six risers (2) and mounting holes (19) opened on the outside of the four risers (2). Each of the four square columns (20) has multiple second screw holes (21) on its outside. Each mounting hole (19) is fitted with a bolt (23). The end of the bolt (23) is threaded into the inner cavity of the second screw hole (21). The top of the six square columns (20) is fixedly connected to a top frame (22).

4. The retractable fixing device for a high-pressure gas cylinder according to claim 1, characterized in that: Multiple connecting plates (9) are fixedly connected between the two risers (2) at the front and back.

5. The retractable fixing device for a high-pressure gas cylinder according to claim 2, characterized in that: The bottom and top surfaces of the movable block (16) are respectively attached to the bottom and top surfaces of the inner cavity of the movable box (10).

6. The retractable fixing device for a high-pressure gas cylinder according to claim 3, characterized in that: The outer side of the square column (20) is in contact with the inner wall of the riser (2).

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