A fixing device for a gas cylinder for a vehicle

Abstract

This utility model relates to a vehicle component, specifically disclosing a fixing device for a vehicle gas cylinder. The device includes a fixing beam to which the gas cylinder is fixedly connected and is positioned close to the ground. The fixing device further includes multiple clamps, one surface of which is arc-shaped and tightly adheres to the outer surface of the gas cylinder. One end of each clamp is connected to one end of the fixing beam by a first bolt, and the other end of each clamp is connected to the other end of the fixing beam by a pin. The first bolt is positioned close to the ground, with its head close to the clamp and its nut pressed against the fixing beam. The tail of the first bolt has a clearance of at least 200mm from the ground. A protective cover is fixedly installed on the other surface of each clamp. The protective cover encloses and protects the gas cylinder, while the clamps provide stable support for the overall structure formed by the protective cover, the gas cylinder, and the fixing beam. The thickness of each clamp is no more than 13mm. This utility model improves the stability of the overall structure formed by the protective cover, the gas cylinder, and the fixing beam.

Description

Technical Field

[0001] This utility model relates to a vehicle component, and more particularly to a device for securing a vehicle gas cylinder. Background Technology

[0002] With the development of clean energy vehicles, more and more vehicles are using compressed natural gas (CNG), liquefied petroleum gas (LPG), or hydrogen as fuel. These gases are typically stored in high-pressure cylinders and fixed inside the vehicle chassis or passenger compartment. Because these cylinders are subjected to significant internal pressure during operation, and the vehicle's operating environment is complex, affected by factors such as vibration, impact, and temperature changes, reliable fixing devices must be used to securely install the cylinders on the vehicle to prevent displacement, loosening, or even detachment, thereby ensuring vehicle operation safety and the safety of passengers' lives and property.

[0003] Currently, the commonly used methods for securing gas cylinders mainly include two types: welded bracket fixing and clamp fixing. Among them, clamp fixing devices are widely used due to their advantages such as convenient installation, strong adjustability, and ease of maintenance and replacement.

[0004] In the prior art, such as the air cylinder assembly bracket with patent application number CN201620348587.X, there is a clamp bracket that fixes the air cylinder with a clamp and a fixing bracket that connects the clamp bracket to the vehicle frame. The clamp bracket includes an assembly plate and a first clamp claw and a second clamp claw symmetrically arranged at the left and right ends of the assembly plate. The fixing bracket includes a vehicle frame connection part and a first clamp bracket connection part and a second clamp bracket connection part symmetrically arranged at the front and rear ends of the vehicle frame connection part to ensure the stability of the air cylinder after installation. However, the air cylinder generally needs to be protected by an air cylinder protection device. Although the clamp acts on the air cylinder, other objects connected to the air cylinder can easily affect the air cylinder when they shake (these other objects are prone to shaking when the vehicle is moving). Shaking of the air cylinder can easily cause it to become unstable, easily collide with nearby objects, reduce the service life of the air cylinder, or even cause dangerous accidents. Utility Model Content

[0005] To increase the stability of gas cylinders, this basic solution provides a fixing device for vehicle gas cylinders.

[0006] A vehicle-mounted gas cylinder fixing device includes a fixing beam and a protective cover. The fixing beam is fixedly connected to the gas cylinder and is close to the ground. The fixing device also includes multiple clamps. One surface of each clamp is arc-shaped and fits tightly against the outer surface of the gas cylinder. One end of each clamp is connected to one end of the fixing beam by a first bolt, and the other end of each clamp is connected to the other end of the fixing beam by a pin. The first bolt is close to the ground, and the bolt head is close to the clamp. The nut of the first bolt is pressed against the fixing beam, and the tail of the first bolt has a clearance of not less than 200mm from the ground. The protective cover is fixedly installed on the other surface of the clamp. The protective cover is used to wrap and protect the gas cylinder, and the clamp is used to stably support the overall structure formed by the protective cover, the gas cylinder, and the fixing beam. The thickness of the clamp is not more than 13mm.

[0007] Beneficial effects: First, improved cylinder stability. Firstly, multi-point fixing structure: The entire fixing device has a relatively simple structure, mainly composed of fixing beams, hoops, and protective covers, with clear and simple connections between components. Multiple hoops fix the cylinder; one end of each hoop is connected to the fixing beam with a first bolt, and the other end is connected with a pin. This multi-point fixing method applies constraint forces to the cylinder from different directions, effectively preventing displacement, loosening, or detachment of the cylinder due to vibration, impact, or other factors during vehicle operation, thus significantly improving cylinder stability. Secondly, tight fit between the hoops and the cylinder: One surface of the hoops is arc-shaped, allowing for a tight fit against the outer surface of the cylinder, making the contact between the hoops and the cylinder more uniform and tight, and the force more even, further enhancing the fixing effect and preventing cylinder shaking or damage due to uneven local force.

[0008] Secondly, the overall structural strength of the gas cylinder, protective cover, and fixing beam is enhanced. First, the protective cover provides support: a protective cover is fixedly installed on the other surface of the hoop, enclosing and protecting the gas cylinder while forming an integral structure with the hoop, gas cylinder, and fixing beam. This structural design not only increases the protective layer for the gas cylinder but also further improves the structural strength and stability of the entire fixing device through the supporting role of the protective cover, enabling it to better withstand various external forces during vehicle operation. Second, the connection points are rationally distributed: the first bolt is close to the ground, with a ground clearance of no less than 200mm. This design makes the distribution of connection points more rational, avoiding uneven stress or interference with other components of the vehicle chassis caused by connection points being too high or too low. Simultaneously, the bolt head is close to the hoop, and the nut is tightly against the fixing beam. This structure ensures the firmness and reliability of the bolt connection, further enhancing the structural strength of the entire fixing device.

[0009] Meanwhile, it facilitates installation and maintenance. Firstly, the adjustable connection method: one end of the clamp is connected by a bolt, and the other end by a pin, providing a degree of adjustability. During installation, the tightness of the clamp can be adjusted according to the actual size and position of the gas cylinder to ensure a tight fit and optimal fixation. This adjustability also facilitates quick disassembly and reinstallation of the clamp when maintenance or cylinder replacement is required, improving maintenance efficiency.

[0010] Secondly, the structure is simple and easy to operate: the overall structure of the fixing device is relatively simple. This structure makes the installation and maintenance process more intuitive and easier to operate. It does not require complicated tools and professional technical knowledge, which reduces installation and maintenance costs and improves the practicality and maintainability of the device.

[0011] Furthermore, it extends the lifespan of the gas cylinder. First, it effectively protects the cylinder: the protective cover provides excellent protection against impacts, friction, and corrosion from external objects during vehicle operation, thus extending the cylinder's lifespan. Simultaneously, the tight fastening of the straps reduces cylinder movement during driving, preventing damage from collisions with other components, further improving cylinder safety and lifespan. Second, it reduces the impact of vibration: the tight fastening of the straps and the support of the protective cover effectively reduce the impact of vibration generated during vehicle operation on the cylinder. Vibration is a significant factor leading to cylinder fatigue damage; reducing vibration lowers the accumulation of internal stress, thereby improving the cylinder's fatigue resistance and extending its lifespan.

[0012] Finally, ensuring vehicle operational safety. First, preventing gas cylinder detachment: This securing device, through multi-point fixation and a tight fit, ensures the gas cylinder remains stable under various complex driving conditions, effectively preventing detachment due to insecure fixing. A detached gas cylinder not only leads to cylinder damage but can also cause serious traffic accidents, endangering the safety of the vehicle and passengers. Therefore, this reliable securing device is crucial for ensuring vehicle operational safety. Second, reducing accident risk: Stable cylinder fixing reduces cylinder shaking and displacement during vehicle operation, preventing dangerous accidents such as fires and explosions caused by cylinders colliding with other components. Simultaneously, the protective cover prevents the cylinder from rupturing or leaking upon external impact, further reducing accident risk and protecting the lives and property of the vehicle and passengers.

[0013] Preferably, an L-shaped fixing block is fixedly installed at one end of the clamp, and the L-shaped fixing block has a first threaded through hole;

[0014] A protective groove is provided at one end of the fixed beam, and a second threaded through hole is provided on the protective groove. The first threaded through hole and the second threaded through hole are aligned. The first bolt passes through the second threaded through hole and the first threaded through hole in sequence. The nut of the first bolt is located in the protective groove, which is used to protect the first bolt.

[0015] Beneficial effects: By setting an L-shaped fixing block at one end of the clamp and opening a protective groove at one end of the fixing beam, the first bolt passes through the protective groove and the threaded through hole on the L-shaped fixing block in sequence for connection, with the nut of the first bolt located inside the protective groove. This structural design effectively protects the nut of the first bolt, preventing it from being damaged by external collisions and friction during vehicle operation, thereby improving the reliability and stability of the bolt connection, extending the service life of the bolt, and further enhancing the firmness and stability of the entire gas cylinder fixing device, better ensuring the safe fixing of the gas cylinder during vehicle operation.

[0016] Preferably, a buckle is fixedly installed at the other end of the hoop, and a pin passes through the buckle and is connected to the fixed beam.

[0017] Beneficial effects: A buckle is installed at the other end of the clamp, and a pin passes through the buckle to connect with the fixing beam. This connection method is simple, quick, and secure. The buckle design makes the connection between the clamp and the fixing beam tighter, effectively preventing the clamp from loosening or shifting under vibration and impact during vehicle operation. This ensures that the clamp always fits tightly against the outer surface of the gas cylinder, providing stable support and fixation for the gas cylinder, further improving the reliability of the gas cylinder fixing device, and reducing the risk of dangerous accidents caused by insecure gas cylinder fixing.

[0018] Preferably, a middle band is fixedly installed on the hoop, the arc length of the middle band is less than the arc length of the hoop, and the middle band is used as a reinforcing rib to enhance the stability of the hoop structure.

[0019] Beneficial effects: The middle band can further enhance the stability of the hoop structure, and the middle band can be used for direct stamping.

[0020] Preferably, two waist belts are fixedly installed on the hoop, and the two waist belts are located on the left and right sides of the middle belt, respectively.

[0021] Beneficial effects: The waist belt helps the cuff fit the gas cylinder better, protecting the cylinder from scratches and also providing some shock absorption.

[0022] Preferably, a fastening block is fixedly installed on the middle belt, and the fastening block and the protective cover are fixedly connected.

[0023] Beneficial effects: A fastening block is fixedly installed on the center strap, and the fastening block and protective cover are securely connected. The fastening block provides a stable connection point between the center strap and the protective cover, allowing the center strap to more tightly secure the protective cover to the gas cylinder. This not only enhances the protective effect of the protective cover on the gas cylinder, preventing impact and damage from external objects during driving, but also further strengthens the overall integrity of the fixing device. The gas cylinder, strap, protective cover, and fixing beam form a more stable integrated structure, improving the stability and reliability of the entire device and better ensuring the safe fixing of the gas cylinder during vehicle operation.

[0024] Preferably, the fastening block and the protective cover are fixedly connected by a second bolt; the fastening block has a third threaded through hole, and the second bolt passes through the protective cover and the third threaded through hole in sequence to fix the fastening block and the protective cover together.

[0025] Beneficial effects: The fastening block and protective cover are fixedly connected by a second bolt. Specifically, the second bolt passes through the third threaded through hole on the fastening block, allowing the protective cover to pass through the third threaded through hole in sequence, thus achieving a tight fixation between the fastening block and the protective cover. This bolted connection method is characterized by a strong and reliable connection, effectively preventing the fastening block and protective cover from loosening or separating under vibration and impact during vehicle operation. The bolted connection ensures the connection strength between the fastening block and the protective cover, thereby guaranteeing the effective fixation of the center belt to the protective cover.

[0026] Preferably, the distance between the fastening block and the first bolt is 184-250mm.

[0027] Beneficial effects: Limiting the distance between the fastening block and the first bolt to 184-250mm ensures a reasonable spatial arrangement between them. This prevents interference due to excessive proximity, which could affect their respective functions and operations, while also avoiding reduced structural compactness and stability due to excessive distance. A suitable distance ensures the fastening block functions effectively when securing the protective cover, while the first bolt provides a secure connection to the clamps. This coordination and tight fit among the components of the gas cylinder fixing device improves overall performance and stability, resulting in better stable fixation and protection of the gas cylinder.

[0028] Preferably, the arc length of the hoop is 208 mm.

[0029] Beneficial effects: The defined curvature of the clamp is 208mm. This specific dimension allows the clamp to fit more precisely against the outer surface of the gas cylinder, achieving a tight wrap and stable support. The appropriate curvature ensures a larger contact area between the clamp and the gas cylinder, resulting in more even stress distribution and preventing localized stress concentration caused by poor contact. This improves the stability of the gas cylinder within the clamp and reduces swaying and displacement during vehicle operation. Furthermore, the precise curvature design helps improve the assembly accuracy and quality of the entire fixing device, enhancing its integrity and reliability, further ensuring the stable fixation and safe use of the gas cylinder.

[0030] Beneficial effects of this utility model

[0031] Firstly, compared to existing technologies, the clamps are only used to stabilize the gas cylinder. This is because if the clamps, gas cylinder, protective cover, and fixing beam are to form a single integrated structure, it would occupy a large volume of space. Therefore, generally, the fixing beam supports the gas cylinder, the clamps prevent the gas cylinder from shaking, and the protective cover protects the gas cylinder from the initial impact force in the event of a sudden incident. Each component has a different function, so technicians install them according to their respective structures to highlight the different functions of each component. In contrast, this utility model attaches the inner and outer surfaces of the clamps to the gas cylinder and the protective cover in sequence, and fixes the fixing beams at both ends, thus forming a single integrated structure. The clamps not only stabilize the gas cylinder but also stabilize the fixing beams and the protective cover. The three components are interconnected, and the thickness of the clamps is no more than 13mm. This not only avoids occupying excessive space but also achieves better structural stability and improves the protection against gas cylinder impacts.

[0032] Secondly, an L-shaped fixing block is fixedly installed at one end of the clamp, and a first threaded through hole is formed on the L-shaped fixing block. A protective groove is formed at one end of the fixing beam, and a second threaded through hole is formed on the protective groove. The first threaded through hole and the second threaded through hole are aligned. The first bolt passes through the second threaded through hole and the first threaded through hole in sequence. The nut of the first bolt is located in the protective groove. In this way, the ground clearance of the first bolt is increased, which increases the ground clearance of the overall structure formed by the protective cover, gas cylinder and fixing beam. In the existing technology, the bolt head is usually close to the ground and the nut is close to the clamp. This is because it is to avoid the bolt being damaged by obstacles on the ground, which would cause the overall structure to wobble and become unstable. However, this makes the bolt head close to the ground, which is equivalent to reducing the ground clearance, thus reducing the height of the entire vehicle chassis. This invention, by creating a protective groove on the existing fixed beam, with the head of the first bolt close to the hoop and the nut (equivalent to the bolt tail) close to the ground, increases the ground clearance. However, this also makes the nut more susceptible to damage from ground obstacles. Therefore, creating a protective groove on the existing fixed beam (without increasing the thickness of the existing fixed beam) protects the first bolt, making it less likely to be damaged by collisions with obstacles. This not only facilitates the replacement of the first bolt but also ensures the stability of the overall structure formed by the protective cover, gas cylinder, and fixed beam, and increases the ground clearance of the overall structure. Attached Figure Description

[0033] Figure 1 A schematic diagram of the overall structure formed by the gas cylinder, fixing beam, hoop, and protective cover in this embodiment;

[0034] Figure 2 A schematic diagram of the overall structure formed by the gas cylinder, fixing beam, and hoop in the embodiment;

[0035] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A;

[0036] Figure 4 A front view (a) of the overall structure formed by the fixed beam and the hoop in the embodiment;

[0037] Figure 5 A schematic diagram of the integral structure formed by the fixed beam and the hoop in the embodiment;

[0038] Figure 6 This is a top view of the hoop in an embodiment;

[0039] Figure 7 A front view (b) of the overall structure formed by the fixed beam and the hoop in the embodiment;

[0040] Figure 8A top view schematic diagram of the overall structure formed by the hoop and protective cover in the embodiment;

[0041] Figure 9 A bottom view of the overall structure formed by the hoop and protective cover in the embodiment;

[0042] Figure 10 This is a front view of the hoop in an embodiment. Detailed Implementation

[0043] The reference numerals in the accompanying drawings include:

[0044] 1. Gas cylinder; 2. Hoop; 3. Fixing beam; 4. Protective cover; 5. L-shaped fixing block; 6. First bolt; 61. Bolt head; 62. Nut; 7. Pin; 8. Protective groove; 9. Second bolt; 10. Middle belt; 11. Fastening block; 12. Buckle; 13. Waist belt.

[0045] Example

[0046] like Figure 1 As shown, this embodiment provides a fixing device for a vehicle-mounted gas cylinder 1, including a fixing beam 3, a gas cylinder 1, two clamps 2, and a protective cover 4. The fixing beam 3 and the gas cylinder 1 are fixedly connected, and the gas cylinder 1 is mounted on the fixing beam 3. The fixing beam 3 is used to stabilize one side of the gas cylinder 1.

[0047] Specifically, such as Figure 2 and Figure 3 As shown, the inner surface of the clamp 2 is arc-shaped and tightly adheres to the outer surface of the gas cylinder 1, while the outer surface of the clamp 2 is tightly adhered to the inner surface of the protective cover 4. According to... Figure 2 and Figure 3 In the basic view orientation, the lower end of the hoop 2 is connected to one end of the fixed beam 3 by a first bolt 6, and the upper end of the hoop 2 is connected to the other end of the fixed beam 3 by a pin 7. Wherein, as... Figure 3 As shown, the first bolt 6 is close to the ground, and the bolt head 61 of the first bolt 6 is close to the clamp 2. The nut 62 of the first bolt 6 is close to the fixing beam 3. The clearance between the tail of the first bolt 6 and the ground is not less than 'a'. In the preferred embodiment of this example, 'a' = 200 mm. The protective cover 4 is used to enclose and protect the gas cylinder 1, and the clamp 2 is used to stably support the overall structure formed by the protective cover 4, the gas cylinder 1, and the fixing beam 3. Figure 4 As shown, the thickness of the hoop 2 is no more than c. In the preferred embodiment of this example, c = 13 mm.

[0048] like Figure 4 and 5 As shown, for reference Figure 4In the basic view orientation, an L-shaped fixing block 5 is fixedly installed at the lower end of the hoop 2, and a first threaded through hole is opened on the L-shaped fixing block 5. A protective groove 8 is opened at the bottom end of the fixing beam 3, and the groove opening of the protective groove 8 is opposite to that of the hoop 2. A second threaded through hole is opened on the protective groove 8, and the first threaded through hole and the second threaded through hole are aligned. The first bolt 6 passes through the second threaded through hole and the first threaded through hole in sequence; the nut 62 of the first bolt 6 is located in the protective groove 8, and the protective groove 8 is used to protect the first bolt 6. Figure 6 As shown, a buckle 12 is welded to the left end of the hoop 2, and a pin 7 passes through the buckle 12 and connects to the fixing beam 3. A middle beam belt 10 is welded to the hoop 2. The middle beam belt 10 is arc-shaped, and the arc length of the middle beam belt 10 is less than the arc length of the hoop 2. A fastening block 11 is fixedly installed on the middle beam belt 10, and the fastening block 11 and the protective cover 4 are fixedly connected by a second bolt 9. A third threaded through hole is opened on the fastening block 11, and the second bolt 9 passes through the protective cover 4 and the third threaded through hole in sequence to fix the fastening block 11 and the protective cover 4. Two waist belts 13 are fixedly installed on the hoop 2, according to... Figure 6 As shown in the basic orientation, the two waist belts 13 are located on the upper and lower sides of the middle belt 10, respectively. Figure 7 As shown, the distance between the fastening block 11 and the first bolt 6 is b. In the preferred embodiment of this example, b = 184 mm. In other embodiments, 184 mm ≤ b ≤ 250 mm. The middle strap 10 is used as a reinforcing rib. Figure 8 and Figure 9 As shown, the structure formed by the hoop 2 and the protective cover is illustrated, with multiple hoop 2 parallel to each other and connected to the protective cover. Figure 10 As shown, the curvature of the hoop 2 is α, and in the preferred embodiment of this example, α = 208 mm.

[0049] Finally, it should be noted that both the protective cover 4 and the fixing beam 3 can adopt existing technology structures. In this embodiment, the bolt includes a bolt head 61 and a nut 62. The tail of the first bolt 6 is the nut 62.

[0050] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0053] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

[0054] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A fixing device for a gas cylinder for a vehicle, comprising a fixing beam and a protective cover, the fixing beam being fixedly connected with the gas cylinder and being close to the ground, characterized in that, The vehicle gas cylinder fixing device also includes multiple hoops. One surface of the hoops is arc-shaped and fits tightly against the outer surface of the gas cylinder. One end of the hoops is connected to one end of the fixing beam by a first bolt, and the other end of the hoops is connected to the other end of the fixing beam by a pin. Among them, the first bolt is close to the ground, and the head of the first bolt is close to the hoop, the nut of the first bolt is close to the fixed beam, and the tail of the first bolt is not less than 200mm from the ground; A protective cover is fixedly installed on the other surface of the hoop. The protective cover is used to wrap and protect the gas cylinder, and the hoop is used to stably support the overall structure formed by the protective cover, the gas cylinder and the fixed beam. The thickness of the hoop is no more than 13mm.

2. The gas cylinder fixing device for vehicle according to claim 1, characterized in that, One end of the clamp is fixedly installed with an L-shaped fixing block, and the L-shaped fixing block has a first threaded through hole; A protective groove is provided at one end of the fixed beam, and a second threaded through hole is provided on the protective groove. The first threaded through hole and the second threaded through hole are aligned. The first bolt passes through the second threaded through hole and the first threaded through hole in sequence. The nut of the first bolt is located in the protective groove, which is used to protect the first bolt.

3. The fixing device for a vehicle gas cylinder according to claim 1, characterized in that, The other end of the hoop is fixedly installed with a buckle, and the pin passes through the buckle and is connected to the fixed beam.

4. The gas cylinder fixing device for vehicle according to claim 1, characterized in that, A central brace is fixedly installed on the hoop. The arc length of the central brace is shorter than that of the hoop. The central brace serves as a reinforcing rib to enhance the stability of the hoop structure.

5. The gas cylinder fixing device for vehicle according to claim 4, wherein Two waist belts are fixedly installed on the hoop, and the two waist belts are located on the left and right sides of the middle belt, respectively.

6. The gas cylinder fixing device for vehicle according to claim 4, wherein A fastening block is fixedly installed on the middle belt, and the fastening block and the protective cover are fixedly connected.

7. The gas cylinder fixing device for vehicle according to claim 6, characterized in that, The fastening block and the protective cover are fixedly connected by a second bolt; a third threaded through hole is opened on the fastening block, and the second bolt passes through the protective cover and the third threaded through hole in sequence to fix the fastening block and the protective cover.

8. The gas cylinder fixing device for vehicle according to claim 6, characterized in that, The distance between the fastening block and the first bolt is 184-250mm.

9. The gas cylinder fixing device for vehicle according to claim 1, characterized in that, The arc length of the hoop is 208mm.

Images