Air bottle

Abstract

The invention relates to an air bottle, and relates to the technical field of pressure vessels, the air bottle comprises a tank body, the side wall of the tank body is sleeved with a lifting ring and a linkage ring, the bottom wall of the lifting ring is rotatably provided with a plurality of supporting rods, the bottom ends of the supporting rods are provided with universal wheels, the linkage ring is located between the supporting rods, and the linkage ring is located between the supporting rods. A linkage groove is formed in the side wall of the supporting rod, a linkage rod is arranged between the linkage ring and the inner wall of the linkage groove, the lifting ring and the linkage ring are both in sliding connection with the tank body, and a sliding assembly is arranged on the tank body and used for driving the lifting ring and the linkage ring to relatively slide. The air bottle carrying device has the effects that the air bottles are conveniently carried, the stability of the air bottles is improved, meanwhile, the strength of the air bottles is enhanced, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure vessels, in particular to an air bottle. BACKGROUND

[0002] High-pressure air bottles are widely used in industrial production, and their main function is to store and transport high-pressure gas. Traditional high-pressure air bottles are usually fixed in design, and need to be carried with the help of external tools or manpower, which is inconvenient to operate, low in efficiency and has safety hazards, and therefore needs to be improved. SUMMARY

[0003] In order to facilitate the carrying of the air bottle, improve the stability of the air bottle, and at the same time enhance the strength of the air bottle and reduce safety hazards, the present application provides an air bottle.

[0004] The air bottle provided by the present application adopts the following technical scheme: An air bottle comprises a tank body, a lifting ring and a linkage ring are sleeved on the side wall of the tank body, the lifting ring is located above the linkage ring, the inner walls of the lifting ring and the linkage ring are mutually attached to the outer wall of the tank body, a plurality of support rods are rotationally arranged on the bottom wall of the lifting ring, universal wheels are arranged at the bottom ends of the support rods, the linkage ring is located between the support rods, the side wall of the support rod towards the tank body direction is provided with a linkage groove for inserting the linkage ring, a linkage rod is arranged between the inner wall of the linkage groove and the linkage ring, one end of the linkage rod is hingedly connected to the side wall of the linkage ring, the other end of the linkage rod is hingedly connected to the inner wall of the linkage groove, and the linkage rod can be inserted into the linkage groove; the lifting ring and the linkage ring are both in sliding connection with the tank body, a sliding assembly is arranged on the tank body, and the sliding assembly is used to drive the relative sliding between the lifting ring and the linkage ring.

[0005] By adopting the technical scheme, when the tank body needs to be moved, the lifting ring and the linkage ring are driven by the sliding assembly to slide close to each other on the surface of the tank body, the linkage ring rises while driving the linkage rod to abut against the support rod, the linkage rod rotates, the support rod can rotate away from the tank body, the control of the plurality of support rods is expanded at the same time, and the lifting ring can drive the universal wheels at the bottom end of the support rod to abut against the ground, at this time, the tank body can be quickly and conveniently moved by using the support rod and the universal wheels, and the stability of the tank body during movement can be effectively improved due to the inclined arrangement between the support rod and the tank body; when the position of the tank body needs to be fixed, the lifting ring and the linkage ring are driven by the sliding assembly to slide away from each other on the surface of the tank body, the linkage ring is lowered to pull the support rod close to the inner wall of the tank body through the linkage rod, the linkage rod is completely retracted into the linkage groove when the linkage ring is inserted into the linkage groove, and at the same time, the lifting ring can lift the support rod to make the universal wheels away from the ground, at this time, the bottom wall of the tank body can be in contact with the ground, and the universal wheels can be completely separated from the ground, so that the stability of the tank body during use can be improved; at the same time, the lifting ring, the linkage ring and the support rod are in close contact with the surface of the tank body, a wrapping structure is formed on the tank body, the strength of the tank body can be effectively enhanced, the explosion-proof performance of the tank body is improved, and in turn, the safety hazard is reduced.

[0006] Preferably, the sliding assembly comprises a motor, a lead screw and a guide rod, the lead screw and the guide rod are symmetrically arranged on the outer wall of the tank body, the guide rod penetrates through the lifting ring and the linkage ring, the motor is arranged on the tank body, the driving shaft of the motor and the lead screw are connected with each other, the lead screw is integrally provided with a first threaded segment and a second threaded segment in opposite rotation directions, the lifting ring is threadedly connected with the first threaded segment, and the linkage ring is threadedly connected with the second threaded segment.

[0007] By adopting the technical scheme, when the lifting ring and the linkage ring need to be driven to slide relative to each other, the motor drives the lead screw to rotate, the guide rod guides, the lifting ring slides on the first threaded segment while the linkage ring slides on the second threaded segment, and only one lead screw can drive the double-ring linkage, so that the structure is more compact, the synchronization of the actions of the support rods to expand or retract is ensured, and the support rods are prevented from being stuck due to the delay of the actions of the double rings. At the same time, the assembly mode of the whole sliding assembly and the air bottle tank body is simple, the lead screw and the guide rod are symmetrically arranged on the outer wall of the tank body, so that the internal gas storage space of the tank body is not occupied and the air bottle sealing performance is not affected.

[0008] Preferably, the side of the support rod towards the tank body is fixedly provided with a buffer pad.

[0009] By adopting the technical scheme, the buffer pad is arranged between the support rod and the tank body after the support rod is retracted, if the support rod is impacted during use of the tank body, the buffer pad can play a certain buffering protection role, the damage of the tank body is reduced, and the service life of the tank body is prolonged.

[0010] As preferred, a plurality of sliding grooves are symmetrically formed on the surface of the tank body, and a sliding block is arranged in the sliding grooves and located on the inner side wall of the lifting ring, the lifting ring and the sliding block are detachably connected, and the sliding assembly and the tank body are detachably connected.

[0011] By adopting the above technical scheme, the stability of the lifting ring during lifting and sliding is improved by the cooperation between the sliding block and the sliding groove, and the lifting ring and the sliding assembly can be detached, thereby realizing single production and assembly of the external structure of the tank body and facilitating maintenance of the external structure of the tank body.

[0012] As preferred, the side wall of the sliding block is fixedly provided with an abutting block, the inner side wall of the lifting ring is provided with an abutting groove for inserting and abutting the abutting block, the abutting block and the abutting groove are matched with each other, the outer wall of the lifting ring is provided with a connecting bolt, and the connecting bolt penetrates through the lifting ring and is threadedly connected between the abutting block and the abutting groove.

[0013] By adopting the above technical scheme, the connecting bolt is rotated to separate the connecting bolt from the abutting block, and the lifting ring and the sliding block can be separated at this time, thereby improving the convenience of disassembling the lifting ring; during assembly, the abutting block and the abutting groove are matched with each other to quickly realize positioning and alignment of the lifting ring and the sliding block, thereby reducing the calibration time during assembly, improving the assembly efficiency, and increasing the contact area of the abutting block and the abutting groove to disperse the fastening stress of the connecting bolt and avoid deformation of the components caused by excessive local stress; in addition, the threaded connection of the connecting bolt can form a stable fixing effect to prevent the lifting ring from loosening with the sliding block during high-frequency sliding or movement of the equipment.

[0014] As preferred, the bottom wall of the supporting rod is provided with a buffer groove, a buffer rod is slidably arranged in the buffer groove, the outer wall of the buffer rod is matched with the inner wall of the buffer groove, the universal wheel is arranged at the bottom end of the buffer rod, and the bottom wall of the buffer groove is provided with a buffer spring abutting against the end wall of the buffer rod.

[0015] By adopting the above technical scheme, when the tank body moves, the buffer block can slide in the buffer groove, and the buffer spring can bear most of the impact load, thereby reducing the stress of the supporting rod, the linkage ring, the lifting ring and other core transmission components, avoiding deformation and fracture of the components caused by long-term bearing of the rigid impact, and allowing the universal wheel to always adhere to the ground by the elastic adjustment of the buffer spring, thereby avoiding inclination and shaking of the air bottle caused by ground undulation, making the pushing process more stable and labor-saving, and being especially suitable for complex scenes such as industrial workshops and ground with waste materials and track lines.

[0016] Preferably, the tank body comprises an inner liner layer made of high-strength polymer material, a reinforcing layer wrapped around the inner liner layer by carbon fiber, and an outer protective layer made of wear-resistant composite material covering the reinforcing layer.

[0017] Preferably, the inner liner layer is made of polyether ether ketone material.

[0018] By adopting the above technical solutions, the polyether ether ketone has high fracture toughness and excellent dimensional stability, and can closely fit the internal gas storage requirements as the inner liner of the air bottle. Even if it is subjected to high pressure of compressed air for a long time, it is not easy to deform or crack, and gas leakage can be effectively avoided. The carbon fiber material has high strength and compact structure, and can greatly improve the overall pressure resistance of the tank body by wrapping the inner liner in a winding manner, so that the tank body can adapt to higher pressure air storage requirements, expand the application scenarios, and the anti-fatigue property of the carbon fiber is excellent, prolonging the overall service life of the tank body. The outer protective layer can play an isolation role to prevent outdoor rainwater, workshop moisture, chemical dust and the like from eroding the carbon fiber layer and the inner liner.

[0019] In summary, the present application has at least one of the following beneficial technical effects: 1. By providing the lifting ring, the linkage ring, the support rod, the universal wheel, the linkage slot, the linkage rod and the sliding assembly, when the tank body needs to be moved, the sliding assembly is used to control the simultaneous tilting and unfolding of the plurality of support rods and the lowering of the tank body, thereby effectively improving the stability of the tank body during movement. When the position of the tank body needs to be fixed, the sliding assembly is used to drive the lifting ring and the linkage ring to move away from each other, so that the bottom wall of the tank body is in contact with the ground and the universal wheel is completely separated from the ground, thereby improving the stability of the tank body during use. The lifting ring, the linkage ring and the support rod are in close contact with the surface of the tank body, forming a wrapping structure around the tank body, which can effectively enhance the strength of the tank body and improve the explosion-proof performance of the tank body, thereby reducing the safety hazards. 2. By providing the motor, the lead screw, the first threaded segment, the second threaded segment and the guide rod, when the relative sliding between the lifting ring and the linkage ring needs to be driven, the motor is used to drive the lead screw to rotate, and the guide rod is used for guidance. The lifting ring slides on the first threaded segment while the linkage ring slides on the second threaded segment. Only one lead screw is needed to drive the double-ring linkage. This not only makes the structure more compact, but also ensures the synchronization of the unfolding or folding action of the support rods, thereby avoiding the jamming of the support rods due to the delay of the double-ring action. 3. By providing the inner liner layer, the reinforcing layer and the outer protective layer, the inner liner layer is made of polyether ether ketone material, which can withstand high pressure of compressed air for a long time and is not prone to deformation or cracking, thereby effectively avoiding gas leakage. The carbon fiber material can greatly improve the overall pressure resistance of the tank body, so that the tank body can adapt to higher pressure air storage requirements and expand the application scenarios. The outer protective layer can play an isolation role to prevent outdoor rainwater, workshop moisture, chemical dust and the like from eroding the carbon fiber layer and the inner liner. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view of an air bottle provided by an embodiment of the present application.

[0021] Figure 2 is a front view of an air bottle provided by an embodiment of the present application.

[0022] Figure 3 is a sectional view of a tank body for embodying an embodiment of the present application.

[0023] Legend: 1, tank body; 11, inner liner layer; 12, reinforcing layer; 13, outer protective layer; 21, lifting ring; 22, linkage ring; 3, support rod; 31, universal wheel; 32, linkage groove; 4, linkage rod; 51, motor; 52, screw rod; 521, first threaded section; 522, second threaded section; 53, guide rod; 6, buffer pad; 7, sliding groove; 71, sliding block; 8, abutting block; 81, abutting groove; 82, connecting bolt; 9, buffer groove; 91, buffer rod; 92, buffer spring. DETAILED DESCRIPTION

[0024] The following will be described in detail below with reference to the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0025] An air bottle is disclosed by an embodiment of the present application. With reference to Figure 1 and Figure 2 which comprises a tank body 1, the cross section of the tank body 1 is circular, a lifting ring 21 and a linkage ring 22 are sleeved on the side wall of the tank body 1, the lifting ring 21 is located above the linkage ring 22, and the inner walls of the lifting ring 21 and the linkage ring 22 are mutually fitted with the outer wall of the tank body 1. The bottom wall of the lifting ring 21 is rotationally provided with a plurality of support rods 3, the bottom ends of the support rods 3 are provided with universal wheels 31, the linkage ring 22 is located between the support rods 3, the side wall of the support rod 3 towards the tank body 1 direction is provided with a linkage groove 32 for the linkage ring 22 to be inserted, the length direction of the linkage groove 32 is provided along the length direction of the support rod 3, a linkage rod 4 is provided between the linkage ring 22 and the inner wall of the linkage groove 32, one end of the linkage rod 4 is mutually hinged with the side wall of the linkage ring 22, the other end of the linkage rod 4 is mutually hinged with the inner wall of the linkage groove 32, and the linkage rod 4 can be inserted into the linkage groove 32.

[0026] With reference to Figure 1 and Figure 2The lifting ring 21 and the linkage ring 22 are in sliding connection with the tank body 1, and can slide along the height direction of the tank body 1 outside the tank body 1. The tank body 1 is provided with a sliding assembly. When the tank body 1 needs to be moved, the lifting ring 21 and the linkage ring 22 are driven to slide towards each other on the surface of the tank body 1 by the sliding assembly. The linkage ring 22 rises while driving the linkage rod 4 to abut against the support rod 3, the linkage rod 4 rotates, the support rod 3 can rotate away from the tank body 1, and the control of the plurality of support rods 3 is expanded at the same time. The lifting ring 21 can drive the universal wheel 31 at the bottom end of the support rod 3 to abut against the ground, so that the tank body 1 can be quickly and conveniently moved by using the support rod 3 and the universal wheel 31. At the same time, due to the inclination between the support rod 3 and the tank body 1, the stability of the tank body 1 during movement can be effectively improved. When the position of the tank body 1 needs to be fixed, the lifting ring 21 and the linkage ring 22 are driven to slide away from each other on the surface of the tank body 1 by the sliding assembly. The linkage ring 22 is lowered to pull the support rod 3 to abut against the inner wall of the tank body 1 through the linkage rod 4. When the linkage ring 22 is inserted into the linkage groove 32, the linkage rod 4 is also completely retracted into the linkage groove 32. At the same time, the lifting ring 21 is raised to drive the support rod 3 to lift the universal wheel 31 away from the ground. At this time, the bottom wall of the tank body 1 can be in contact with the ground, and the universal wheel 31 can be completely separated from the ground to improve the stability of the tank body 1 during use.

[0027] With reference to Figure 1 The side of the support rod 3 facing the tank body 1 is fixedly provided with a buffer pad 6. After the support rod 3 is retracted, the buffer pad 6 is arranged between the support rod 3 and the tank body 1. When the tank body 1 is in use, if the support rod 3 is impacted, the buffer pad 6 can play a certain buffering protection role, reduce the damage to the tank body 1, and be beneficial to prolong the service life of the tank body 1.

[0028] With reference to Figure 1 and Figure 2The sliding assembly comprises a motor 51, a screw rod 52 and a guide rod 53, the screw rod 52 and the guide rod 53 are symmetrically arranged on the outer wall of the tank body 1 along the height direction of the tank body 1, the guide rod 53 is detachably connected through bolts, the guide rod 53 penetrates the lifting ring 21 and the linkage ring 22, the motor 51 is arranged on the tank body 1 through bolts, the driving shaft of the motor 51 and the screw rod 52 are connected with each other, the screw rod 52 is integrally provided with a first threaded section 521 and a second threaded section 522 in opposite rotation directions, the lifting ring 21 is threadedly connected with the first threaded section 521, and the linkage ring 22 is threadedly connected with the second threaded section 522. When it is needed to drive the relative sliding between the lifting ring 21 and the linkage ring 22, the motor 51 is used to drive the screw rod 52 to rotate, the guide rod 53 is used for guiding, the lifting ring 21 slides on the first threaded section 521, and the linkage ring 22 slides on the second threaded section 522 at the same time, so that the double-ring linkage can be driven only through the screw rod 52, the structure is more compact, the synchronization of the unfolding or folding actions of the supporting rods 3 can be ensured, and the supporting rods 3 are prevented from being stuck due to the delay of the double-ring actions. Meanwhile, the assembly mode of the whole sliding assembly and the air bottle tank body 1 is simple, the screw rod 52 and the guide rod 53 are symmetrically arranged on the outer wall of the tank body 1, the internal gas storage space of the tank body 1 is not occupied, and the air bottle sealing performance is not affected.

[0029] With reference to Figure 1 A plurality of slide grooves 7 are symmetrically formed in the surface of the tank body 1, the length direction of the slide grooves 7 is arranged along the height direction of the tank body 1, and a sliding block 71 is arranged in the slide groove 7 and located on the inner side wall of the lifting ring 21, so that the stability of the lifting ring 21 during lifting and sliding is improved by the cooperation between the sliding block 71 and the slide groove 7. A side wall of the sliding block 71 is fixedly provided with an abutting block 8, an inner side wall of the lifting ring 21 is provided with an abutting groove 81 for inserting and abutting the abutting block 8, the abutting block 8 and the abutting groove 81 are matched with each other, a connecting bolt 82 is arranged on the outer wall of the lifting ring 21 and threadedly connected between the abutting block 8 and the abutting groove 81. The connecting bolt 82 is rotated to be separated from the abutting block 8, so that the lifting ring 21 and the sliding block 71 can be separated, the lifting ring 21 is detachable, and the external structure of the tank body 1 is convenient to maintain; during assembly, the abutting block 8 and the abutting groove 81 are matched with each other to quickly position and align the lifting ring 21 and the sliding block 71, the calibration time during assembly is reduced, the assembly efficiency is improved, the contact area of the abutting block 8 and the abutting groove 81 can be increased, the fastening stress of the connecting bolt 82 is dispersed, local excessive stress is avoided to cause deformation of components, and the threaded connection of the connecting bolt 82 can form a stable fixing effect to prevent the lifting ring 21 from loosening with the sliding block 71 during high-frequency sliding or movement of the equipment.

[0030] With reference to Figure 1The bottom wall of the support rod 3 is provided with a buffer groove 9 along the length direction of the support rod 3, a buffer rod 91 is slidably arranged in the buffer groove 9, the outer wall of the buffer rod 91 is matched with the inner wall of the buffer groove 9, the universal wheel 31 is arranged at the bottom end of the buffer rod 91, and the buffer spring 92 abutting against the end wall of the buffer rod 91 is arranged on the bottom wall of the buffer groove 9. When the tank body 1 moves, the buffer block can slide in the buffer groove 9, and the buffer spring 92 can bear most of the impact load, so as to reduce the stress of the support rod 3, the linkage ring 22, the lifting ring 21 and other core transmission components, avoid deformation and fracture of the components due to long-term bearing of the rigid impact, and avoid inclination and shaking of the air bottle due to the ups and downs of the ground.

[0031] With reference to Figure 3 The tank body 1 comprises an inner container layer 11, a reinforcing layer 12 and an outer protective layer 13. The inner container layer 11 is made of high-strength polymer material, and is made of polyether ether ketone material. The reinforcing layer 12 is wrapped around the inner container layer 11 by using carbon fiber. The outer protective layer 13 covers the reinforcing layer 12 by using wear-resistant composite material, and is made of resin-based wear-resistant composite material. The polyether ether ketone has high fracture toughness and excellent dimensional stability, and can closely fit the internal gas storage requirement as the inner container of the air bottle. Even if it bears high-pressure compressed air for a long time, it is not easy to deform or crack, and gas leakage can be effectively avoided. The carbon fiber has high strength and compact structure, and can greatly improve the overall pressure resistance of the tank body 1 by wrapping the inner container in a winding manner, so that the tank body 1 can adapt to higher air storage pressure requirements and expand the application scenarios. Meanwhile, the carbon fiber has excellent fatigue resistance, which prolongs the overall service life of the tank body 1. The resin-based wear-resistant composite material can play an isolation role to prevent outdoor rainwater, workshop moisture, chemical dust and the like from eroding the carbon fiber layer and the inner container.

[0032] The implementation principle of the air bottle according to the embodiment of the application is as follows: when the tank body 1 needs to be moved, the screw rod 52 is driven to rotate by the motor 51, the lifting ring 21 and the linkage ring 22 are driven to slide on the surface of the tank body 1 and approach each other, the linkage rod 4 abuts against the support rod 3 when the linkage ring 22 rises, the linkage rod 4 rotates, the support rod 3 can rotate away from the tank body 1, the control of the plurality of support rods 3 is expanded at the same time, and the lifting ring 21 can drive the universal wheels 31 at the bottom end of the support rod 3 to abut against the ground. At this time, the support rod 3 and the universal wheel 31 can be used to quickly and conveniently move the tank body 1. Since the support rod 3 is arranged obliquely with respect to the tank body 1, the stability of the tank body 1 during movement can be effectively improved.

[0033] When the position of the tank body 1 needs to be fixed, the motor 51 drives the screw rod 52 to rotate reversely, drives the lifting ring 21 and the linkage ring 22 to slide away from each other on the surface of the tank body 1, the linkage ring 22 is lowered to pull the supporting rod 3 to approach the inner wall of the tank body 1 through the linkage rod 4, when the linkage ring 22 is inserted into the linkage groove 32, the linkage rod 4 is completely retracted into the linkage groove 32, while the lifting ring 21 is raised to lift the supporting rod 3 to make the universal wheel 31 away from the ground, at this time, the bottom wall of the tank body 1 can be contacted with the ground, the universal wheel 31 is completely separated from the ground, which can improve the stability of the tank body 1 when in use; at the same time, the lifting ring 21, the linkage ring 22 and the supporting rod 3 are mutually attached to the surface of the tank body 1, a wrapping structure is formed on the tank body 1, which can effectively enhance the strength of the tank body 1, improve the explosion-proof performance of the tank body 1, and further reduce the safety hazard.

[0034] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An air bottle comprising a canister (1) characterised in that: The side wall of the tank body (1) is sleeved with a lifting ring (21) and a linkage ring (22), the lifting ring (21) is located above the linkage ring (22), the inner walls of the lifting ring (21) and the linkage ring (22) are matched with the outer wall of the tank body (1), the bottom wall of the lifting ring (21) is rotationally provided with a plurality of support rods (3), the bottom ends of the support rods (3) are provided with universal wheels (31), the linkage ring (22) is located between the support rods (3), the side wall of the support rod (3) towards the tank body (1) is provided with a linkage groove (32) for inserting the linkage ring (22), a linkage rod (4) is arranged between the linkage ring (22) and the inner wall of the linkage groove (32), one end of the linkage rod (4) is hingedly connected with the side wall of the linkage ring (22), the other end of the linkage rod (4) is hingedly connected with the inner wall of the linkage groove (32), and the linkage rod (4) can be inserted into the linkage groove (32); the lifting ring (21) and the linkage ring (22) are slidably connected with the tank body (1), the tank body (1) is provided with a sliding assembly, and the sliding assembly is used to drive the relative sliding between the lifting ring (21) and the linkage ring (22).

2. An air bottle according to claim 1, wherein: The sliding assembly comprises a motor (51), a lead screw (52) and a guide rod (53), the lead screw (52) and the guide rod (53) are symmetrically arranged on the outer wall of the tank body (1), the guide rod (53) penetrates the lifting ring (21) and the linkage ring (22), the motor (51) is arranged on the tank body (1), the driving shaft of the motor (51) and the lead screw (52) are connected with each other, the lead screw (52) is integrally provided with a first threaded section (521) and a second threaded section (522) in opposite directions, the lifting ring (21) is threadedly connected with the first threaded section (521), and the linkage ring (22) is threadedly connected with the second threaded section (522).

3. An air bottle as claimed in claim 1, wherein: The side of the support rod (3) towards the tank body (1) is fixedly provided with a buffer pad (6).

4. An air bottle as claimed in claim 1, wherein: A group of sliding grooves (7) are symmetrically arranged on the surface of the tank body (1), sliding blocks (71) are slidably arranged in the sliding grooves (7), the sliding blocks (71) are located on the inner side wall of the lifting ring (21), the lifting ring (21) and the sliding blocks (71) are detachably connected, and the sliding assembly and the tank body are detachably connected.

5. An air bottle as claimed in claim 4, wherein: A side wall of the sliding block (71) is fixedly provided with an abutting block (8), an inner side wall of the lifting ring (21) is provided with an abutting groove (81) for inserting and abutting the abutting block (8), the abutting block (8) and the abutting groove (81) are matched with each other, a connecting bolt (82) is arranged on the outer wall of the lifting ring (21), the connecting bolt (82) penetrates the lifting ring (21) and is threadedly connected between the abutting block (8) and the abutting groove (81).

6. An air bottle according to claim 1, wherein: The bottom wall of the support rod (3) is provided with a buffer groove (9), a buffer rod (91) is slidably arranged in the buffer groove (9), the outer wall of the buffer rod (91) is matched with the inner wall of the buffer groove (9), the universal wheel (31) is arranged at the bottom end of the buffer rod (91), and the bottom wall of the buffer groove (9) is provided with a buffer spring (92) abutting against the end wall of the buffer rod (91).

7. An air bottle as claimed in claim 1 wherein: The tank body (1) comprises an inner container layer (11), a reinforcing layer (12) and an outer protective layer (13), the inner container layer (11) is made of high-strength polymer material, the reinforcing layer (12) is wound on the inner container layer (11) by carbon fibers, and the outer protective layer (13) covers the reinforcing layer (12) by using wear-resistant composite material.

8. An air bottle as claimed in claim 7, wherein: The inner container layer (11) is made of polyether ether ketone material.

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