Hoop structure, fixing device and vehicle

By designing a flexible connection hoop structure, the problem of hoop breakage during vehicle vibration was solved, thus improving service life and driving safety.

CN223740577UActive Publication Date: 2025-12-30FAW JIEFANG AUTOMOTIVE CO
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Patent Information

Application Number
CN202520571487.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2025-12-30
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

The hoops in the existing fixing devices are prone to breakage when the vehicle vibrates, affecting vehicle driving safety.

Method used

Design a hoop structure including a hoop body, a flexible part and a connecting part. The connecting part is flexibly connected to the hoop body through the flexible part. The flexible part deforms when the gas cylinder bounces, reducing the stress on the hoop structure and preventing breakage.

Benefits of technology

This improves the service life of the hoop structure and the driving safety of the vehicle, while ensuring the stability of the gas cylinder installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of vehicles, and discloses a strap structure, a fixing device and a vehicle. The strap structure comprises a strap body, two connecting parts and a flexible part, the two connecting parts are connected to the two ends, extending in the length direction, of the strap body respectively, at least one connecting part is flexibly connected with the strap body through the flexible part, and the connecting parts are used for being connected with an external bearing piece. The flexible part of the strap structure is connected between the connecting part and the strap body, and when a vehicle vibrates to cause jumping of a gas cylinder, the flexible part can generate certain deformation, so that the acting force borne by the strap structure is reduced, the strap structure is effectively prevented from being broken, the service life of the strap body is prolonged, and the service life of the strap body is prolonged. And the driving safety of the vehicle can be ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to hoop structure, fixing device and vehicle. BACKGROUND

[0002] Natural gas truck usually needs to use fixing device to fix gas cylinder to frame, and the existing fixing device usually includes mounting bracket and hoop, and the mounting bracket is fixedly connected to the frame, and the hoop is used for clamping the gas cylinder on the mounting bracket. In order to ensure the installation stability of the gas cylinder, the hoop in the prior art usually has great rigidity, but in the process of vehicle driving, road unevenness inevitably leads to vehicle vibration, and then the stress of the hoop increases, which increases the risk of the hoop fracture, thereby affecting the driving safety of the vehicle.

[0003] Therefore, a hoop structure, fixing device and vehicle are needed to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of hoop structure, fixing device and vehicle, and this hoop structure has certain flexibility, when vehicle appears vibration and leads to gas cylinder to appear jumping, hoop structure can produce certain deformation, and then avoid the fracture of hoop structure, not only improve the service life of hoop structure, but also can ensure the driving safety of vehicle.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Hoop structure, the hoop structure includes hoop body, flexible part and two connecting parts, two the connecting part is connected to the two ends of the hoop body along the length direction extension respectively, at least one the connecting part is flexibly connected with the hoop body by the flexible part, and the connecting part is used to connect external carrier.

[0007] As an optional technical scheme, the flexible part includes a plurality of first connecting pieces and a plurality of second connecting pieces, two adjacent the first connecting pieces and are connected with the same second connecting piece, and adjacent the first connecting piece and the second connecting piece are arranged at an angle, forming a wave-shaped structure, the first connecting piece or the second connecting piece on one side is used to connect the hoop body, and the first connecting piece or the second connecting piece on the other side is used to connect the connecting part.

[0008] As an optional technical scheme, the connecting part includes a connecting plate and a plurality of studs, a plurality of the studs are parallel and spaced apart on the connecting plate, for connecting external carrier;One end of the connecting plate is connected to the connecting part, and the other end of the connecting plate is connected to the hoop body or the flexible part.

[0009] As an optional technical scheme, the band body, the first connectors, the second connectors and the connecting plate are integrally formed.

[0010] As an optional technical scheme, the band structure further comprises an anti-skid part, which covers at least a partial area of a side of the band body facing the banding member.

[0011] As an optional technical scheme, the anti-skid part is an anti-skid rubber pad, which is connected with the band body.

[0012] The utility model discloses the following technical scheme is adopted:

[0013] The fixing device comprises a fixing support, and further comprises the band structure as described above, and the two connecting parts are detachably connected with the fixing support.

[0014] As an optional technical scheme, the fixing support comprises a support body and two connecting seats, the two connecting seats are detachably connected with the support body, and the two connecting seats are used for one-to-one detachable connection with the two connecting parts.

[0015] As an optional technical scheme, the support body comprises a support piece and a flange, the first end of the support piece is provided with an arc-shaped groove for limiting the banding member, the flange is connected with one end of the support piece provided with the arc-shaped groove and extends along the thickness direction of the support piece.

[0016] The utility model discloses the following technical scheme is adopted:

[0017] The vehicle comprises a vehicle frame and a gas cylinder, and further comprises the fixing device as described above, the fixing support of the fixing device is mounted on the vehicle frame, and the gas cylinder is banding between the fixing supports of the band structure.

[0018] The utility model discloses the following technical scheme is adopted:

[0019] The utility model discloses a band structure, which comprises a band body, two connecting parts and a flexible part, the two connecting parts are respectively connected to the two ends of the band body extending along the length direction, at least one connecting part is flexibly connected with the band body through the flexible part, and the connecting part is used for connecting an external bearing member. The two connecting parts of the band structure are used for connecting the external bearing member, the band body is used for abutting against the gas cylinder, so that the gas cylinder can be stably limited, the flexible part is connected between the connecting part and the band body, when the vehicle shakes and causes the gas cylinder to jump, the flexible part can be deformed to reduce the force acting on the whole band structure, thereby effectively avoiding the rupture of the band structure, which not only prolongs the service life of the band body, but also ensures the driving safety of the vehicle.

[0020] The utility model discloses still disclose a fixing device, the fixing device includes fixed support still includes the band structure as described above, and two connecting parts are respectively with the both ends of fixed support detachable connection. This fixing device is provided with the band structure as described above, can avoid the band structure and appear fracture, and then promote the fixing device to the fixed stability of gas cylinder, ensure the safety in the use process.

[0021] The utility model discloses still disclose a vehicle, the vehicle includes frame and gas cylinder still includes the fixing device as described above, and the fixed support of fixing device installs in frame, and the two connecting parts of band structure all with fixed support detachable connection to limit gas cylinder. This vehicle is provided with the fixing device as described above, can stably limit gas cylinder, and the band structure of fixing device is not easy to crack, and then make the driving safety of vehicle high. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of the band structure of the utility model embodiment;

[0023] Figure 2 It is the front view of the band structure of the utility model embodiment;

[0024] Figure 3 It is Figure 2 The local enlarged view of A in;

[0025] Figure 4 It is the structure schematic diagram of the fixing device of the utility model embodiment;

[0026] Figure 5 It is the structure schematic diagram of the fixed support (connecting seat shows) of the utility model embodiment;

[0027] Figure 6 It is the structure schematic diagram of the fixed support (connecting seat hides) of the utility model embodiment;

[0028] Figure 7 It is the structure schematic diagram of the connecting seat of the utility model embodiment.

[0029] In the drawing:

[0030] 1, band structure;2, fixed support;201, support body;2011, support piece;2012, flange;2013, third connecting hole;202, connecting seat;2021, first plate body;2022, second plate body;2023, web;2024, first subplate;2025, second subplate;2026, first connecting hole;2027, second connecting hole;2028, abutment;2029, antiskid structure;

[0031] 10, band body;

[0032] 20, connecting part; 21, connecting plate; 22, stud; 23, fixing nut;

[0033] 30, flexible part; 31, first connecting piece; 32, second connecting piece;

[0034] 40, anti-skid part. DETAILED DESCRIPTION

[0035] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0036] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0039] As Figures 1 to 3As shown, in the embodiment, a cuff structure 1 is provided, which includes a cuff body 10, a flexible part 30, and two connecting parts 20 connected to two ends of the cuff body 10 along the length direction, and at least one connecting part 20 is flexibly connected to the cuff body 10 through the flexible part 30, and the connecting part 20 is used for connecting an external carrier. Specifically, in actual use, the two connecting parts 20 of the cuff structure 1 are used for connecting to the external carrier, and the cuff body 10 can abut against the gas cylinder, thereby ensuring the installation stability of the gas cylinder, and the two connecting parts 20 are flexibly connected through the flexible part 30 and the cuff body 10. When the vehicle bounces and causes the gas cylinder to jump, the two flexible parts 30 deform due to the extrusion of the gas cylinder, thereby avoiding the cracking or even breaking of the cuff structure 1. This setting not only improves the service life of the cuff structure 1, but also ensures the installation stability of the gas cylinder during vehicle driving, thereby ensuring driving safety. And the two flexible parts 30 are arranged on both sides of the cuff body 10, thereby making the locking force of the cuff body 10 on the gas cylinder more uniform, avoiding uneven force on the gas cylinder.

[0040] In another embodiment, only one end of the cuff body 10 can be provided with a flexible part 30 according to actual needs, which also has the effect of deforming when the gas cylinder jumps and avoiding the breaking of the cuff structure 1, which will not be repeated here.

[0041] Further, please refer to Figure 3 The flexible part 30 includes a plurality of first connecting pieces 31 and a plurality of second connecting pieces 32, adjacent two first connecting pieces 31 are connected to the same second connecting piece 32, and adjacent first connecting pieces 31 and second connecting pieces 32 are arranged at an angle to form a wave-shaped structure. The first connecting piece 31 or the second connecting piece 32 on one side is used for connecting the cuff body 10, and the first connecting piece 31 or the second connecting piece 32 on the other side is used for connecting the connecting part 30. Specifically, in the embodiment, a plurality of first connecting pieces 31 and a plurality of second connecting pieces 32 are connected in turn and staggered, and adjacent first connecting pieces 31 and second connecting pieces 32 are arranged at an angle, thereby making the flexible part 30 into a wave shape. When the gas cylinder jumps due to vehicle vibration, the angle between the first connecting piece 31 and the second connecting piece 32 changes, so that the length of the cuff structure 1 can be elongated with the jumping of the gas cylinder, avoiding the cracking or breaking of the cuff structure 1 due to a large impact, thereby ensuring the service life of the cuff structure 1.

[0042] Specifically, please refer to Figure 2Since the flexible part 30 is arranged between the two connecting parts 20 and the band body 10 in the embodiment, the part connecting the band body 10 is identified as the first connecting part 31, if the number of the first connecting part 31 is the same as that of the second connecting part 32, the part connecting the connecting part 20 is the second connecting part 32, if the number of the first connecting part 31 is one more than that of the second connecting part 32, the part connecting the connecting part 20 is the first connecting part 20, which will not be described here.

[0043] Further, referring to Figure 3 The connecting part 20 comprises a connecting plate 21 and a plurality of studs 22, the plurality of studs 22 are arranged in parallel and at intervals on the connecting plate 21, and are used to connect the external carrier; one end of the connecting plate 21 is connected to the connecting part 20, and the other end of the connecting plate 21 is connected to the band body 10 or the flexible part 30. Specifically, in the embodiment, the other end of the connecting plate 21 is connected to the flexible part 30, and the stud 22 is provided with two, which are arranged in parallel and at intervals on the connecting plate 21, and are used to connect the external carrier, which can improve the connection stability of the external carrier and the connecting plate 21.

[0044] In another embodiment, the number of studs 22 can be specifically set according to actual use, which will not be described here.

[0045] In the embodiment, the width of the connecting plate 21 is narrower than the width of the band body 10, which is convenient for connecting with the external carrier and improves the space utilization.

[0046] Further, the band body 10, the plurality of first connecting parts 31, the plurality of second connecting parts 32 and the connecting plate 21 are integrally formed. Specifically, in the embodiment, when the band body 10, the plurality of first connecting parts 31, the plurality of second connecting parts 32 and the connecting plate 21 are processed, first, the plate material is cut to obtain a transition piece meeting the use, then the two ends of the transition piece are bent to obtain the above-mentioned flexible part, and then the stud 22 is welded at the two ends of the transition piece, and finally the above-mentioned band structure 1 is obtained.

[0047] Further, referring to Figure 1 The band structure 1 further comprises an anti-skid part 40, which covers at least part of the area of the side of the band body 10 facing the tightening part. Specifically, in the embodiment, the anti-skid part 40 is arranged on the side of the band body 10 contacting the gas cylinder, which can increase the friction between the band structure 1 and the gas cylinder, effectively prevent the gas cylinder from rotating, and further ensure the stability of the installation of the gas cylinder and the normal work of the gas supply system of the vehicle.

[0048] Further, the anti-skid part 40 is an anti-skid rubber pad connected with the band body 10. Specifically, in the embodiment, the anti-skid rubber pad is in a C-shaped structure and can be clamped with the band body 10, and then connected with the band body 10.

[0049] Specifically, in the embodiment, the anti-skid rubber pad can be provided with anti-skid particles on the end surface of the gas cylinder, further increasing the friction between the anti-skid rubber pad and the gas cylinder, and then improving the stability of the gas cylinder installation.

[0050] Specifically, in another embodiment, the anti-skid part 40 can be a protrusion directly processed on the band body 10, which can also increase the friction with the gas cylinder, which will not be described here.

[0051] As shown in Figures 4 to 7 , the embodiment also provides a fixing device including a fixing support 2 and the above-mentioned band structure 1, and the two connecting parts 20 are detachably connected with the fixing support 2. Specifically, in the embodiment, the fixing support 2 and the band structure 1 are both provided with two, which can ensure that the gas cylinder is balanced in force, and the fixing support 2 is fixedly installed on the vehicle frame, the gas cylinder is placed on the fixing support 2, the band structure 1 is arranged on the top of the gas cylinder, and the two connecting parts 20 are detachably connected with the two ends of the fixing support 2, which can not only ensure the convenience of replacing the gas cylinder, but also ensure the installation stability of the gas cylinder, and when the vehicle shakes and causes the gas cylinder to jump, the band structure 1 can be deformed, thereby reducing the possibility of cracking and breaking of the band structure 1, and ensuring that the fixing device has good fixation on the gas cylinder.

[0052] In other embodiments, the number of fixing supports 2 and the number of band structures 1 can be specifically set according to actual use, which will not be described here.

[0053] Further, please refer to Figure 5 , the fixing support 2 includes a support body 201 and two connecting seats 202, the two connecting seats 202 are detachably connected with the support body 201, and the two connecting seats 202 are used to detachably connect the two connecting parts 20 one by one. Specifically, in the embodiment, the connecting seat 202 is provided with a first connecting hole 2026 and a second connecting hole 2027, the connecting seat 202 is connected with the support body 201 through the first connecting hole 2026, the second connecting hole 2027 is provided with two, and the two second connecting holes 2027 are spaced apart, the two studs 22 of the connecting part 20 are correspondingly arranged with the two second connecting holes 2027, and the stud 22 of the connecting part 20 is threadedly connected with the fixing nut 23 after passing through the second connecting hole 2027, so as to connect the band structure 1 and the fixing support 2, and limit the gas cylinder.

[0054] Specifically, in the embodiment, please refer to Figure 7The connecting seat 202 comprises a first plate body 2021 and a second plate body 2022, the first plate body 2021 and the second plate body 2022 are arranged vertically, the first connecting hole 2026 is arranged on the first plate body 2021, the second connecting hole 2027 is arranged on the second plate body 2022, and the first plate body 2021 and the second plate body 2022 are provided with a rib plate 2023, thereby improving the structural strength of the connecting seat 202. In this embodiment, the second plate body 2022 comprises a first sub-plate 2024 and a second sub-plate 2025, two second sub-plates 2025 are respectively connected to two ends of the first sub-plate 2024, and are arranged at an angle with the first sub-plate 2024, the first sub-plate 2024 and the second sub-plate 2025 are connected with the first plate body 2021, and the structural strength of the connecting seat 202 is further improved.

[0055] Further, please refer to Figure 5 and Figure 6 The support body 201 comprises a support piece 2011 and a flange 2012, the first end of the support piece 2011 is provided with an arc-shaped groove for limiting the clamped piece, and the flange 2012 is connected with one end of the support piece 2011 provided with the arc-shaped groove and extends along the thickness direction of the support piece 2011. Specifically, in this embodiment, the support piece 2011 comprises a transition plate and two symmetrical support pieces 2011, one end of the support piece 2011 is connected with the transition plate, the arc-shaped groove is arranged at the other end of the support piece 2011, and the flange 2012 is arranged at the arc-shaped groove of each support piece 2011. The arrangement of the flange 2012 increases the contact area between the support piece 2011 and the gas cylinder, effectively improves the supporting effect, and effectively ensures the stability of the gas cylinder when the band structure 1 and the fixing support 2 limit the gas cylinder, thereby avoiding the deviation of the gas cylinder caused by uneven stress.

[0056] Specifically, in this embodiment, please refer to Figure 6 The flange 2012 extends along the radial direction of the arc-shaped groove to two sides adjacent to the arc-shaped structure, the third connecting hole 2013 is arranged on the flange 2012, the third connecting hole 2013 is coaxially arranged with the first connecting hole 2026, and the fastener is arranged in the first connecting hole 2026 and the third connecting hole 2013, so as to connect the connecting seat 202 with the support body 201.

[0057] Specifically, in this embodiment, please refer to Figure 6In order to further improve the structural strength of the support 2011, an abutting piece 2028 is arranged between two symmetrically arranged supports 2011, and the two ends of the abutting piece 2028 abut with the two supports 2011 respectively, thereby effectively avoiding the deformation of the support body 201 and ensuring the safety in use. Specifically, the abutting piece 2028 has a C-shaped structure, and the abutting plate is connected with the support 2011 through bolts and nuts, which will not be repeated here. In other embodiments, the abutting piece 2028 can also have an I-shaped structure or a Z-shaped structure, which is not limited here.

[0058] In another embodiment, the flange 2012 is arranged only on the side of the support 2011 facing the gas cylinder, which can effectively reduce the processing difficulty and processing cost. In this embodiment, the connecting seat 202 can be connected with the support body 201 by welding, which will not be repeated here.

[0059] Specifically, in this embodiment, the support body 201 is processed by an integrated stamping forming method, and the support body has a U-shaped structure, which has good strength and can effectively reduce the overall weight compared with the beam structure in the prior art, which is beneficial to the lightweight of the vehicle. The connecting seat 202 is connected with the two supports 2011, which can support the two supports 2011 to some extent, prevent the deformation of the fixing support 2, and further ensure the stability of the gas cylinder.

[0060] Specifically, in this embodiment, in order to reduce the overall weight of the fixing support 2, the weight-reducing holes are further arranged on the supports 2011, which will not be repeated here.

[0061] Specifically, in this embodiment, please refer to Figure 4 The fixing device further comprises an anti-skid structure 2029 arranged on the side of the support body 201 close to the gas cylinder, which can not only avoid the collision between the gas cylinder and the support body 201 and prevent the damage of the gas cylinder, but also increase the friction between the gas cylinder and the support body 201, thereby further ensuring the installation stability of the gas cylinder.

[0062] Specifically, in this embodiment, the anti-skid structure 2029 can be a rubber pad, which is not limited here.

[0063] This embodiment also provides a vehicle, which includes a frame and a gas cylinder, as well as the fixing device described above. The fixing bracket 2 of the fixing device is installed on the frame, and the gas cylinder is clamped between the clamp structure 1 and the fixing bracket 2. Specifically, in this embodiment, the fixing bracket 2 of the fixing device is connected to the frame to ensure the positional stability of the fixing device. The two fixing brackets 2 of the fixing device are spaced apart on the frame along the driving direction of the vehicle, which can increase the load-bearing space of the fixing device and provide better support for the gas cylinder, thereby improving the installation stability of the gas cylinder. The two clamp structures 1 and the two fixing brackets 2 are arranged one-to-one. The two connecting parts 20 of the clamp structure 1 are respectively connected to the two connecting seats 202 on both sides of the bracket body 201. The flexible part 30 of the clamp structure 1 can ensure that the clamp structure 1 itself is subjected to less impact when the gas cylinder bounces, thereby reducing the risk of clamp breakage and ensuring the safety of vehicle use.

[0064] Specifically, in this embodiment, the connection between the fixed bracket 2 and the vehicle frame can be a detachable connection method such as welding or bolt connection, and there is no limitation on this.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cuff structure, characterized by, The band structure comprises a band body (10), a flexible part (30) and two connecting parts (20), the two connecting parts (20) are respectively connected to two ends of the band body (10) extending in the length direction, at least one of the connecting parts (20) is flexibly connected to the band body (10) through the flexible part (30), and the connecting parts (20) are used for connecting external carriers.

2. The cuff structure of claim 1, wherein, The flexible part (30) comprises a plurality of first connecting pieces (31) and a plurality of second connecting pieces (32), two adjacent first connecting pieces (31) are connected to the same second connecting piece (32), and the adjacent first connecting piece (31) and the second connecting piece (32) are arranged at an angle to form a wave-shaped structure, the first connecting piece (31) or the second connecting piece (32) on one side is used for connecting the band body (10), and the first connecting piece (31) or the second connecting piece (32) on the other side is used for connecting the connecting part (20).

3. The cuff structure of claim 2, wherein, The connecting part (20) comprises a connecting plate (21) and a plurality of studs (22), the plurality of studs (22) are arranged in parallel and at intervals on the connecting plate (21) and are used for connecting external carriers; one end of the connecting plate (21) is connected to the connecting part (20), and the other end of the connecting plate (21) is connected to the band body (10) or the flexible part (30).

4. The cuff structure of claim 3, wherein, The band body (10), the plurality of first connecting pieces (31), the plurality of second connecting pieces (32) and the connecting plate (21) are integrally formed.

5. The cuff structure of any of claims 1-4, wherein, The band structure further comprises an anti-skid part (40), and the anti-skid part (40) covers at least part of the area of the side of the band body (10) facing the tightened part.

6. The cuff structure of claim 5, wherein, The anti-skid part (40) is an anti-skid rubber pad, and the anti-skid rubber pad is connected to the band body (10).

7. A fixture, characterized in that The fixing device comprises a fixing support (2) and the band structure as claimed in any one of claims 1-6, and the two connecting parts (20) are detachably connected to the fixing support (2).

8. The fixture of claim 7, wherein, The fixing support (2) comprises a support body (201) and two connecting seats (202), the two connecting seats (202) are detachably connected to the support body (201), and the two connecting seats (202) are used for detachably connecting the two connecting parts (20) one by one.

9. The fixture of claim 8, wherein, The support body (201) comprises a supporting piece (2011) and a flange (2012), a first end of the supporting piece (2011) has an arc-shaped groove for limiting the tightened part, and the flange (2012) is connected to one end of the supporting piece (2011) provided with the arc-shaped groove and extends along the thickness direction of the supporting piece (2011).

10. Vehicle, comprising a vehicle frame and a gas cylinder, characterized in that The vehicle further comprises the fixing device as claimed in claim 7, the fixing support (2) of the fixing device is mounted to the vehicle frame, and the gas cylinder is tightened between the band structure and the fixing support (2).