A quick-mounting device for oxygen cylinders

Abstract

The utility model provides a kind of oxygen cylinder fast equipment, comprising: L-shaped bearing plate, vertical stand fixed in the rear side of the L-shaped bearing plate, handle fixed in the upper end of the vertical stand, two conveying wheels symmetrically installed in the lower end of the vertical stand, support pad fixed on the L-shaped bearing plate, lower positioning member set on the L-shaped bearing plate, upper positioning member set on the vertical stand, lower backboard fixed in the front side of the L-shaped bearing plate, auxiliary support piece installed on the L-shaped bearing plate and the lower backboard, and fixing piece set on the auxiliary support piece and the upper positioning member, the oxygen cylinder fast equipment can complete the quick and stable assembly of different size oxygen cylinder bottle body on the L-shaped bearing plate by setting upper limiting member and lower limiting member, so that oxygen cylinder bottle body can be quickly transported and stably placed according to needs, and the use of oxygen cylinder bottle body is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of oxygen cylinder technology, and more specifically, to a quick-installation device for oxygen cylinders. Background Technology

[0002] Oxygen cylinders are ideal oxygen supply equipment for hospitals, emergency stations, sanatoriums, home care, battlefield first aid, personal health care, and various hypoxic environments. They are indispensable for patients, the elderly, pregnant women, students, white-collar workers, and tourists, tunnel dwellers, and mountain climbers.

[0003] To facilitate management and improve efficiency, oxygen cylinders are generally stored in designated locations and moved to the usage location when needed. During storage and use, oxygen cylinders must be kept upright for easy access. When storing and using oxygen cylinders with their bottoms on the ground, stands are typically used for support. However, existing stands offer poor stability, allowing cylinders to easily wobble and collide with the stands, potentially causing them to tip over and damage during movement or user contact. Furthermore, these stands are inconvenient for quickly installing cylinders of different sizes, and the process of mounting the cylinders onto the stands is cumbersome, resulting in poor installation convenience and limited practicality. Utility Model Content

[0004] The purpose of this invention is to provide a quick-assembly device for oxygen cylinders to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides a quick-assembly device for oxygen cylinders, comprising: an L-shaped support plate, a vertical frame fixed to the rear side of the L-shaped support plate, a handle fixed to the upper end of the vertical frame, two conveying wheels symmetrically installed at the lower end of the vertical frame, a support pad fixed to the L-shaped support plate, a lower positioning component disposed on the L-shaped support plate, an upper positioning component disposed on the vertical frame, a lower backing plate fixed to the front side of the L-shaped support plate, auxiliary support components mounted on the L-shaped support plate and the lower backing plate, and fixing components disposed on the auxiliary support components and the upper positioning component. The lower positioning member and the upper positioning member are used to approach and squeeze the upper and lower ends of the oxygen cylinder body respectively when the oxygen cylinder body is placed on the L-shaped support plate, thereby restricting the movement of the oxygen cylinder body on the L-shaped support plate. The auxiliary support is used to support the lower end of the L-shaped support plate against the ground when the L-shaped support plate is tilted. The fastener is used to engage with the side edge of the bed when the bed is lowered, thus restricting the movement of the support frame.

[0006] Furthermore, the upper positioning component includes a movable frame movably sleeved on the upright frame, an upper support plate fixedly connected to the movable frame, a conical positioning sleeve fixed to the top of the upper support plate and adapted to the upper end of the oxygen cylinder body, and an assembly opening opened on the conical positioning sleeve.

[0007] Furthermore, the upper positioning component also includes several locking teeth symmetrically arranged on the upright frame, two movable slots symmetrically opened on the movable frame, two positioning blocks that are respectively fitted and slidably inserted into the two movable slots, several positioning teeth that are respectively fixed on the two positioning blocks and mesh with the several locking teeth, a control rope that passes through the movable frame at one end and is respectively fixedly connected to the two positioning blocks, a pull ring fixed at the other end of the control rope, and two return springs that are respectively fixed in the two movable slots; The two ends of the reset spring are fixedly connected to the inner wall of the movable groove and the positioning block, respectively.

[0008] Furthermore, the lower positioning component includes two locking blocks symmetrically fixed to the L-shaped support plate, two locking grooves respectively opened on the two locking blocks, a limiting sleeve disposed on the L-shaped support plate and movably slidably inserted into the two locking grooves at both ends, a plurality of positioning protrusions symmetrically fixed on the limiting sleeve, a plurality of positioning grooves opened on the two locking blocks and adapted to the plurality of positioning protrusions, a limiting cover fixed to the inner wall of the limiting sleeve, and a top fastener disposed in the limiting cover.

[0009] Furthermore, the top fastener includes a top fixing block disposed inside the limiting cover, a plurality of top support springs with one end fixedly connected to the top fixing block and the other end fixedly connected to the inner wall of the limiting cover, a plurality of limiting grooves symmetrically opened on the limiting cover, a plurality of limiting blocks symmetrically fixed on the top fixing block and movably disposed in the plurality of the limiting grooves, and a plurality of movable wheels fixedly installed on the top fixing block and abutting against the lower end of the oxygen cylinder body.

[0010] Furthermore, the auxiliary support includes a hinged plate fixed to the lower back plate, an auxiliary support rod hinged to the hinged plate, an auxiliary support wheel rotatably mounted at the bottom of the auxiliary support rod, and a restraining rope with one end fixedly connected to the lower end of the auxiliary support rod and the other end fixedly connected to the lower back plate.

[0011] Furthermore, the fixing member includes a guide frame fixed to the hinge plate and movably connected to the movable frame, a fixing block movably sleeved on the guide frame, and a magnetic block installed on the fixing block.

[0012] Furthermore, both the upper and lower support plates are symmetrically provided with support protrusions, and rubber pads are fixedly connected to the side of the upper and lower support plates closest to the oxygen cylinder body.

[0013] Compared with the prior art, the embodiments of this utility model have the following beneficial effects: 1. The oxygen cylinder quick assembly equipment of this utility model, through the combination of the upper positioning component and the lower positioning component, can quickly and stably restrict and fix the oxygen cylinder body on the L-shaped support plate and the upright frame, and effectively restrict the movement of the oxygen cylinder body on the L-shaped support plate, so that the oxygen cylinder body will not shift in position, and facilitate the quick assembly of oxygen cylinder bodies of different sizes, thereby effectively improving the practicality of the equipment. 2. The oxygen cylinder quick-assembly equipment of this utility model, after the oxygen cylinder body is stably assembled onto the L-shaped support plate and the upright frame by the upper and lower positioning parts, with the assistance of auxiliary support parts, facilitates the stable movement of the L-shaped support plate and the upright frame by the operator, so as to complete the stable transport of the oxygen cylinder body. During transport, it will not be damaged by vibration or collision with the L-shaped support plate and the upright frame. 3. The oxygen cylinder quick-assembly device of this utility model can quickly connect the stand to the bed frame with the cooperation of the fixing parts when the oxygen cylinder is transported to the position where oxygen is needed. This prevents the oxygen cylinder from being accidentally bumped by the user and causing it to tip over and be damaged, thus ensuring the safety of the oxygen cylinder during use. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 A perspective view of a preferred embodiment of the present invention is shown; Figure 2 A perspective view of another state of the preferred embodiment of the present invention is shown; Figure 3 A partial split-dimensional view of a preferred embodiment of the present invention is shown. Figure 1 ; Figure 4 A partial split-dimensional view of a preferred embodiment of the present invention is shown. Figure 2 ; Figure 5 A partial cross-sectional perspective view of a preferred embodiment of the present invention is shown; Figure 6 A preferred embodiment of the present invention is shown. Figure 3 Enlarged view of point A; Figure 7 A preferred embodiment of the present invention is shown. Figure 5 Enlarged view of point B.

[0016] In the picture 1. L-shaped support plate; 2. Upright frame; 3. Handle; 4. Conveyor wheel; 5. Support pad; 6. Lower positioning component; 7. Upper positioning component; 8. Lower back plate; 9. Auxiliary support component; 10. Fixing component; 11. Movable frame; 12. Upper back plate; 13. Conical positioning sleeve; 14. Assembly opening; 15. Locking tooth; 16. Movable groove; 17. Positioning block; 18. Positioning tooth; 19. Control rope; 20. Pull ring; 21. Return spring; 22. Locking block; 23. 24. Locking groove; 25. Limiting sleeve; 26. Positioning protrusion; 27. Positioning groove; 28. Limiting cover; 29. ​​Top fastener; 30. Top fixing block; 31. Top support spring; 32. Limiting groove; 33. Limiting block; 34. Movable wheel; 35. Hinge plate; 36. Auxiliary support rod; 37. Auxiliary support wheel; 38. Restriction rope; 39. Guide frame; 40. Fixing block; 41. Magnetic block; 42. Support protrusion; 43. Rubber pad; 44. Oxygen cylinder body. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] Please refer to Figure 1-3 The present invention relates to a quick-assembly device for oxygen cylinders, comprising: an L-shaped support plate 1, a vertical frame 2 fixed to the rear side of the L-shaped support plate 1, a handle 3 fixed to the upper end of the vertical frame 2, two conveying wheels 4 symmetrically installed at the lower end of the vertical frame 2, a support pad 5 fixed to the L-shaped support plate 1, a lower positioning member 6 disposed on the L-shaped support plate 1, an upper positioning member 7 disposed on the vertical frame 2, a lower backing plate 8 fixed to the front side of the L-shaped support plate 1, an auxiliary support member 9 disposed on the L-shaped support plate 1 and the lower backing plate 8, and a fixing member 10 disposed on the auxiliary support member 9 and the upper positioning member 7, wherein... The lower positioning member 6 and the upper positioning member 7 are used to approach and squeeze the upper and lower ends of the oxygen cylinder body 43 respectively when the oxygen cylinder body 43 is placed on the L-shaped support plate 1, thereby restricting the movement of the oxygen cylinder body 43 on the L-shaped support plate 1. The auxiliary support 9 is used to support the lower end against the ground when the L-shaped bearing plate 1 is tilted; Please refer to Figure 4The fixing member 10 is used to lock onto the side edge of the bed when it moves downwards, restricting the movement of the support frame 2. In use, the lower fixing member 10 is removed from the L-shaped support plate 1 beforehand, and the upper positioning member 7 is moved upwards, leaving space between the upper positioning member 7 and the L-shaped support plate 1 for placing the oxygen cylinder body 43. At this point, the support frame 2 can be controlled to move the L-shaped support plate 1 to the lower end of the oxygen cylinder body 43, placing the oxygen cylinder body 43 on the L-shaped support plate 1. Because the upper surface of the support pad 5 matches the lower surface of the oxygen cylinder body 43, and the bottom of the oxygen cylinder body 43 is conical, and the support pad 5 is made of rubber, the support pad 5 can initially limit the position of the oxygen cylinder body 43. During transportation, it can also provide some cushioning to prevent the oxygen cylinder body 43 from being vibrated and causing safety hazards. Afterwards, the upper positioning member 7 and the lower positioning member 6 work together... This allows for stable fixing and limiting of the upper and lower ends of the oxygen cylinder body 43. Furthermore, depending on the downward movement of the conical positioning sleeve 13 in the upper positioning component 7 and the cooperation of the top fastener 28 in the lower positioning component 6, it facilitates the assembly and fixing of oxygen cylinder bodies 43 of different sizes. This ensures the ease of assembly of the oxygen cylinder body 43 and the practicality of the equipment. After the oxygen cylinder body 43 is stably assembled on the L-shaped support plate 1, it can be transported to the location where oxygen is needed via the handle 3 and two conveying wheels 4. With the cooperation of the auxiliary support 9, the oxygen cylinder body 43 is effectively prevented from shaking during transport and placement, avoiding collisions and damage between the oxygen cylinder body 43 and the upright frame 2. With the cooperation of the fixing component 10, the connection between the upright frame 2 and the hospital bed can be quickly completed, preventing accidental collisions with the oxygen cylinder body 43 during use, thus preventing it from tipping over and being damaged.

[0019] The positioning component 7 includes a movable frame 11 movably sleeved on the upright frame 2, an upper support plate 12 fixedly connected to the movable frame 11, a conical positioning sleeve 13 fixed to the top of the upper support plate 12 and adapted to the upper end of the oxygen cylinder body 43, and an assembly opening 14 on the conical positioning sleeve 13. After the conical positioning sleeve 13 is moved upward to engage with the assembly opening 14 on the conical positioning sleeve 13, the conical positioning sleeve 13 is moved downward to fit onto the upper end of the oxygen cylinder body 43, thus quickly fixing and limiting the position of the upper end of the oxygen cylinder body 43. The conical positioning sleeve 13 facilitates the limiting of the upper end of oxygen cylinder bodies 43 of different sizes, effectively improving the practicality of the equipment.

[0020] Please refer to Figure 4 , Figure 5 and Figure 7Optionally, the upper positioning member 7 further includes a plurality of locking teeth 15 symmetrically arranged on the upright frame 2, two movable slots 16 symmetrically opened on the movable frame 11, two positioning blocks 17 respectively fitted and slidably inserted into the two movable slots 16, a plurality of positioning teeth 18 respectively fixed on the two positioning blocks 17 and meshing with the plurality of locking teeth 15, a control rope 19 with one end penetrating the movable frame 11 and fixedly connected to the two positioning blocks 17 respectively, a pull ring 20 fixed at the other end of the control rope 19, and two return springs 21 respectively fixed in the two movable slots 16; The two ends of the return spring 21 are fixedly connected to the inner wall of the movable groove 16 and the positioning block 17, respectively. The cross-sections of the locking teeth 15 and the positioning teeth 18 are arranged in right-angled triangles or right-angled trapezoids. During the downward movement of the conical positioning sleeve 13, the positioning teeth 18 continuously contact the locking teeth 15 as they move downwards together. Under the elastic force of the two return springs 21, the two positioning blocks 17 intermittently move within the two movable grooves 16. When the conical positioning sleeve 13 moves downwards and contacts the oxygen cylinder body 43, the elastic force of the two return springs 21 pushes the two positioning blocks 17 to engage the locking teeth 18. In the tooth 15, the movement of the movable frame 11 on the upright frame 2 is restricted, so as to keep the conical positioning sleeve 13 complete in restricting the upper end of the oxygen cylinder body 43 and ensure the stability of the fixed limit of the conical positioning sleeve 13 on the upper end of the oxygen cylinder body 43. When the oxygen cylinder body 43 needs to be replaced, simply pull the pull ring 20 to drive the control rope 19 to pull the two positioning blocks 17, which can compress the two return springs 21 and cause several positioning teeth 18 to disengage from several locking teeth 15. At this time, the movable frame 11 can be moved up, so as to drive the upper back plate 12 and the conical positioning sleeve 13 to move up, releasing the restriction on the upper end of the oxygen cylinder body 43 and ensuring the quick disassembly and assembly of the upper end of the oxygen cylinder.

[0021] Please refer to Figure 1 , Figure 3 and Figure 4Optionally, the lower positioning member 6 includes two locking blocks 22 symmetrically fixed on the L-shaped support plate 1, two locking grooves 23 respectively opened on the two locking blocks 22, a limiting sleeve 24 disposed on the L-shaped support plate 1 and movably slidably inserted into the two locking grooves 23 at both ends, a plurality of positioning protrusions 25 symmetrically fixed on the limiting sleeve 24, and a plurality of positioning grooves 26 opened on the two locking blocks 22 and adapted to the plurality of positioning protrusions 25, a limiting cover 27 fixed to the inner wall of the limiting sleeve 24, and a plurality of positioning grooves 26 disposed on the L-shaped support plate 1. The top fastener 28 inside the limiting cover 27, after the oxygen cylinder body 43 is placed on the L-shaped support plate 1, can respectively insert the two ends of the limiting sleeve 24 into the two locking grooves 23, and make several positioning protrusions 25 into several positioning grooves 26, so that the assembly of the limiting sleeve 24 on the L-shaped support plate 1 can be completed, so that the limiting sleeve 24 is fitted on the lower end of the oxygen cylinder body 43, quickly completing the fixation and restriction of the lower end of the oxygen cylinder body 43. With the cooperation of the top fastener 28, the stability of the limiting cover 27 after assembly can be effectively improved, and the limiting stability of the lower end of the oxygen cylinder body 43 can be improved.

[0022] Please refer to Figure 3 and Figure 6Optionally, the top fixing device 28 includes a top fixing block 29 disposed within the limiting cover 27, a plurality of top support springs 30 fixedly connected at one end to the top fixing block 29 and at the other end fixedly connected to the inner wall of the limiting cover 27, a plurality of limiting grooves 31 symmetrically opened on the limiting cover 27, a plurality of limiting blocks 32 symmetrically fixed on the top fixing block 29 and movably disposed within the plurality of limiting grooves 31, and a plurality of movable wheels 33 fixedly installed on the top fixing block 29 and abutting against the lower end of the oxygen cylinder body 43. When the user installs the limiting sleeve 24 on the L-shaped support plate 1, under the elastic force of the plurality of top support springs 30, the top fixing block 29 will approach the oxygen cylinder body 43, causing the plurality of movable wheels 33 to abut against the oxygen cylinder body 43, thereby further restricting the movement of the lower end of the oxygen cylinder body 43 and improving the stability of the lower end of the oxygen cylinder. Under the action of several top support springs 30, it is convenient to restrict the lower end of oxygen cylinder bodies 43 of different sizes, which is highly practical. At the same time, under the elastic push of the top support springs 30, the limiting sleeve 24 will move away from the side of the L-shaped support plate 1, so that several positioning protrusions 25 can be stably locked into several positioning grooves 26, effectively improving the stability of the limiting sleeve 24 on the L-shaped support plate 1. When transporting the oxygen cylinder body 43, the limiting sleeve 24 will not be dislodged from the L-shaped support plate 1 due to vibration, improving the safety of transporting the oxygen cylinder body 43. During the installation of the limiting sleeve 24, the set several movable wheels 33 ensure that the top fixing block 29 will not directly contact the oxygen cylinder body 43, so that the oxygen cylinder body 43 will not be damaged when the limiting sleeve 24 is lowered for installation, which facilitates the quick assembly of the limiting sleeve 24.

[0023] Please refer to Figure 2 and Figure 4 Optionally, the auxiliary support 9 includes a hinged plate 34 fixed on the lower support plate 8, an auxiliary support rod 35 hinged to the hinged plate 34, an auxiliary support wheel 36 rotatably mounted on the bottom of the auxiliary support rod 35, and a restraining rope 37 with one end fixedly connected to the lower end of the auxiliary support rod 35 and the other end fixedly connected to the lower support plate 8. When the worker tilts the L-shaped support plate 1 and the upright frame 2 and transports the oxygen cylinder body 43 on the L-shaped support plate 1 through the two conveyor wheels 4, the auxiliary support rod 35 can be controlled to rotate around the hinged plate 34 as the fulcrum so that the conveyor wheel 4 contacts the ground, providing support for the tilted upright frame 2, effectively improving the stability of the oxygen cylinder body 43 during transportation, and reducing the physical exertion of the worker.

[0024] Please refer to Figure 1 and Figure 3In some preferred embodiments, the fixing member 10 includes a guide frame 38 fixed to the hinge plate 34 and movably connected to the movable frame 11, a fixing block 39 movably sleeved on the guide frame 38, and a magnetic block 40 installed on the fixing block 39. When the staff moves the equipment to the bedside of the patient who needs to use the oxygen cylinder 43, the user can lift the fixing block 39 upwards by hand, so that the fixing block 39 moves upwards along the guide frame 38, making the height of the fixing block 39 higher than the height of the bed. Then, the L-shaped support plate 1 is moved so that the upright 2 approaches and abuts the bed. After that, the user releases the fixing block 39, and the fixing block 39 falls freely under gravity and gets stuck at the edge of the bed. In the magnetic attraction of the magnetic block 40, the fixing block 39 is attracted to the bed, thereby effectively restricting the movement of the upright 2 and the L-shaped support plate 1. This ensures that when the oxygen cylinder 43 is used, the oxygen cylinder 43 will not shake because the staff or the patient's family members are working at the bedside and touching the oxygen tube, thus ensuring the safety of the oxygen cylinder 43 during use.

[0025] Please refer to Figure 3 , Figure 5 In some preferred embodiments, the upper support plate 12 and the lower support plate 8 are symmetrically provided with support protrusions 41. The upper support plate 12 and the lower support plate 8 are fixedly connected to the side of the oxygen cylinder body 43. By using the support protrusions 41 and the rubber pads 42, the side wall of the oxygen cylinder body 43 placed on the L-shaped support plate 1 can be supported and limited, and the upper support plate 12, the lower support plate 8 and the support protrusions 41 are less likely to cause damage to the oxygen cylinder body 43 when they come into contact with or collide with it.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-assembly device for oxygen cylinders, characterized in that, include: The structure comprises an L-shaped support plate (1), a vertical frame (2) fixed to the rear side of the L-shaped support plate (1), a handle (3) fixed to the upper end of the vertical frame (2), two conveyor wheels (4) symmetrically installed at the lower end of the vertical frame (2), a support pad (5) fixed to the L-shaped support plate (1), a lower positioning component (6) set on the L-shaped support plate (1), an upper positioning component (7) set on the vertical frame (2), a lower backing plate (8) fixed to the front side of the L-shaped support plate (1), an auxiliary support component (9) installed on the L-shaped support plate (1) and the lower backing plate (8), and a fixing component (10) set on the auxiliary support component (9) and the upper positioning component (7). The lower positioning member (6) and the upper positioning member (7) are used to approach and squeeze the upper and lower ends of the oxygen cylinder body (43) respectively when the oxygen cylinder body (43) is placed on the L-shaped support plate (1), thereby restricting the movement of the oxygen cylinder body (43) on the L-shaped support plate (1). The auxiliary support (9) is used to support the ground at its lower end when the L-shaped bearing plate (1) is tilted. The fastener (10) is used to engage with the side edge of the bed when it moves downward, thus restricting the movement of the support frame (2).

2. The oxygen cylinder quick-filling device as described in claim 1, characterized in that, The upper positioning component (7) includes a movable frame (11) movably sleeved on the upright frame (2), an upper support plate (12) fixedly connected to the movable frame (11), a conical positioning sleeve (13) fixed to the top of the upper support plate (12) and adapted to the upper end of the oxygen cylinder body (43), and an assembly opening (14) opened on the conical positioning sleeve (13).

3. The oxygen cylinder quick-filling device as described in claim 2, characterized in that, The upper positioning component (7) also includes several locking teeth (15) symmetrically arranged on the upright frame (2), two movable slots (16) symmetrically opened on the movable frame (11), two positioning blocks (17) respectively fitted and slidably inserted into the two movable slots (16), several positioning teeth (18) respectively fixed on the two positioning blocks (17) and meshing with several locking teeth (15), a control rope (19) with one end penetrating the movable frame (11) and fixedly connected to the two positioning blocks (17) respectively, a pull ring (20) fixed at the other end of the control rope (19), and two return springs (21) respectively fixed in the two movable slots (16); The two ends of the reset spring (21) are fixedly connected to the inner wall of the movable groove (16) and the positioning block (17), respectively.

4. The oxygen cylinder quick-filling device as described in claim 3, characterized in that, The lower positioning component (6) includes two locking blocks (22) symmetrically fixed on the L-shaped support plate (1), two locking grooves (23) respectively opened on the two locking blocks (22), a limiting sleeve (24) set on the L-shaped support plate (1) and whose two ends are respectively movably slidably inserted into the two locking grooves (23), a plurality of positioning protrusions (25) symmetrically fixed on the limiting sleeve (24), a plurality of positioning grooves (26) opened on the two locking blocks (22) and adapted to the plurality of positioning protrusions (25), a limiting cover (27) fixed on the inner wall of the limiting sleeve (24), and a top fastener (28) set in the limiting cover (27).

5. The oxygen cylinder quick-filling device as described in claim 4, characterized in that, The top fastener (28) includes a top fastening block (29) disposed in the limiting cover (27), a plurality of top support springs (30) with one end fixedly connected to the top fastening block (29) and the other end fixedly connected to the inner wall of the limiting cover (27), a plurality of limiting grooves (31) symmetrically opened on the limiting cover (27), a plurality of limiting blocks (32) symmetrically fixed on the top fastening block (29) and movably disposed in the plurality of limiting grooves (31), and a plurality of movable wheels (33) fixedly installed on the top fastening block (29) and abutting against the lower end of the oxygen cylinder body (43).

6. The oxygen cylinder quick-filling device as described in claim 2, characterized in that, The auxiliary support (9) includes a hinge plate (34) fixed on the lower back plate (8), an auxiliary support rod (35) hinged to the hinge plate (34), an auxiliary support wheel (36) rotatably installed at the bottom of the auxiliary support rod (35), and a restraining rope (37) with one end fixedly connected to the lower end of the auxiliary support rod (35) and the other end fixedly connected to the lower back plate (8).

7. The oxygen cylinder quick-assembly device as described in claim 6, characterized in that, The fastener (10) includes a guide frame (38) fixed on the hinge plate (34) and movably connected to the movable frame (11), a fixing block (39) movably sleeved on the guide frame (38), and a magnetic block (40) installed on the fixing block (39).

8. The oxygen cylinder quick-filling device as described in claim 6, characterized in that, Supporting protrusions (41) are symmetrically provided on the upper back plate (12) and the lower back plate (8), and rubber pads (42) are fixedly connected to the side of the upper back plate (12) and the lower back plate (8) near the oxygen cylinder body (43).

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