Flame-retardant explosion-proof fuel tank for automobile
Patent Information
- Application Number
- CN202522080535.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-27
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-27
AI Technical Summary
[0003]现有技术中传统阻燃防爆油箱多采用单一壳体或简单护板设计，防撞能力有限，缺乏缓冲吸能结构，当受到外部撞击，如车辆侧碰、碎石击打时，冲击力直接作用于壳体表面
[0015]This invention utilizes a polyethylene protective plate to provide impact protection for the internally located oil storage tank, while the connecting plate enhances the overall structural stability of the polyethylene protective plate. During installation, several connecting bolt housings are aligned with the connecting bolt limiting grooves on the front of the connecting plate and inserted, allowing the connecting bolt housings to slide through the connecting plate and into the connecting grooves on the front of the polyethylene protective plate. Using a tool, an adjustment groove is inserted into the front of the ball bearing pusher, and then the pusher is rotated. Under the action of the threads on the inner wall of the limiting block, the pusher moves inward towards the connecting bolt housing. As the pusher advances, its outer wall pushes several limiting balls within the ball bearing limiting grooves on the inner wall of the connecting bolt housing, causing some of the limiting balls to disengage from the grooves and engage with the limiting grooves on the inner wall of the connecting plate, thus fixing the connecting bolt housing and achieving a secure connection between the polyethylene protective plate and the connecting plate. Through the above structural combination, the polyethylene protective plate stably wraps the oil tank, playing a role in flame retardancy, explosion prevention and impact protection, ensuring the safe use of the oil tank, solving the problems of weak impact protection, loose connection and difficult maintenance of traditional oil tanks, and significantly improving safety, economy and adaptability.
Smart Images
Figure CN224644639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of explosion-proof fuel tank technology, and in particular to a flame-retardant explosion-proof fuel tank for automobiles. Background Technology
[0002] The background technology for flame-retardant and explosion-proof fuel tanks for automobiles mainly revolves around improving vehicle safety, environmental protection, and addressing hazards such as fires and explosions caused by fuel leaks. With the continuous development of the automotive industry, especially the increasing demands for safety, environmental friendliness, and fuel efficiency in modern vehicles, it is essential to ensure vehicle safety while complying with increasingly stringent environmental regulations and lightweighting trends.
[0003] Existing flame-retardant and explosion-proof fuel tanks often employ a single shell or simple protective plate design, offering limited impact resistance and lacking a buffer and energy-absorbing structure. When subjected to external impacts, such as side collisions with vehicles or impacts from gravel, the impact force acts directly on the shell surface. If the impact force exceeds the material's strength limit, cracks or even ruptures can easily occur, leading to fuel leakage and posing a potential risk. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a flame-retardant and explosion-proof fuel tank for automobiles.
[0005] This utility model is achieved using the following technical solution: a flame-retardant and explosion-proof fuel tank for automobiles, comprising a polyethylene protective plate, an oil storage tank disposed inside the polyethylene protective plate, a protective plate connecting plate disposed on the front side of the polyethylene protective plate, a connecting groove formed on the front side of the polyethylene protective plate, a limiting groove formed on the inner wall of the connecting groove, a connecting bolt limiting groove formed on the front side of the protective plate connecting plate, a connecting bolt housing slidably connected to the inner wall of the connecting bolt limiting groove, the connecting bolt housing penetrating the inner wall of the protective plate connecting plate and extending therethrough, the outer wall of the connecting bolt housing slidably connected to the inner wall of the connecting groove, a limiting block fixedly connected to the inner wall of the connecting bolt housing, a steel ball push rod threadedly connected to the inner wall of the limiting block, a steel ball limiting groove formed on the inner wall of the connecting bolt housing, a limiting steel ball disposed in contact with the inner wall of the steel ball limiting groove, and an adjustment groove formed on the front side of the steel ball push rod.
[0006] As a further improvement to the above solution, the outer wall of the steel ball push rod is in contact with the inner wall of the connecting bolt housing, and the outer wall of the limiting steel ball is in contact with the inner wall of the limiting groove.
[0007] As a further improvement to the above solution, several connecting grooves are provided, several limiting grooves are provided, several connecting bolt limiting grooves are provided, and several connecting bolt outer shells are provided.
[0008] As a further improvement to the above solution, several steel ball push rods are provided, several steel ball limiting grooves are provided, and several limiting steel balls are provided.
[0009] Through the above technical solution, the polyethylene protective plate provides impact protection for the internally contacted oil storage tank, and the overall structural stability of the polyethylene protective plate is enhanced by the connecting plate. During installation, several connecting bolt shells are aligned with several connecting bolt limiting grooves on the front of the connecting plate and inserted, so that the connecting bolt shells slide into the connecting grooves on the front of the polyethylene protective plate after passing through the connecting plate.
[0010] As a further improvement to the above solution, the top of the polyethylene protective plate is provided with an oil storage tank clearance groove, the inner wall of the polyethylene protective plate is provided with a flow guide groove, and the bottom of the inner wall of the polyethylene protective plate is provided with a flow convergence groove.
[0011] As a further improvement to the above solution, a debris barrier is fixedly connected to the bottom of the inner wall of the polyethylene protective plate, and a positioning groove is opened on the front of the polyethylene protective plate, with a positioning block slidably connected to the inner wall of the positioning groove.
[0012] As a further improvement to the above solution, the end of the positioning block one away from the polyethylene protective plate is fixedly connected to the back of the protective plate connecting plate, the front of the polyethylene protective plate is provided with a positioning groove two, the inner wall of the positioning groove two is slidably connected with a positioning block two, and the end of the positioning block two away from the polyethylene protective plate is fixedly connected to the back of the protective plate connecting plate.
[0013] Through the above technical solution, the oil tank clearance groove opened on the top of the polyethylene protective plate is used to adapt to the top structure of the oil tank, avoid interference between the protective plate and the oil tank during installation or vibration, ensure that the polyethylene protective plate fits tightly against the outer wall of the oil tank, and improve the fit of the protection.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention utilizes a polyethylene protective plate to provide impact protection for the internally located oil storage tank, while the connecting plate enhances the overall structural stability of the polyethylene protective plate. During installation, several connecting bolt housings are aligned with the connecting bolt limiting grooves on the front of the connecting plate and inserted, allowing the connecting bolt housings to slide through the connecting plate and into the connecting grooves on the front of the polyethylene protective plate. Using a tool, an adjustment groove is inserted into the front of the ball bearing pusher, and then the pusher is rotated. Under the action of the threads on the inner wall of the limiting block, the pusher moves inward towards the connecting bolt housing. As the pusher advances, its outer wall pushes several limiting balls within the ball bearing limiting grooves on the inner wall of the connecting bolt housing, causing some of the limiting balls to disengage from the grooves and engage with the limiting grooves on the inner wall of the connecting plate, thus fixing the connecting bolt housing and achieving a secure connection between the polyethylene protective plate and the connecting plate. Through the above structural combination, the polyethylene protective plate stably wraps the oil tank, playing a role in flame retardancy, explosion prevention and impact protection, ensuring the safe use of the oil tank, solving the problems of weak impact protection, loose connection and difficult maintenance of traditional oil tanks, and significantly improving safety, economy and adaptability.
[0016] This invention utilizes a recessed groove on the top of the polyethylene protective plate to accommodate the top structure of the oil tank, preventing interference between the plate and the tank during installation or vibration. This ensures the polyethylene protective plate fits tightly against the outer wall of the tank, improving the protective seal. The flow channels on the inner wall of the polyethylene protective plate guide any liquids that may seep between the plate and the tank, such as rainwater or cleaning water, towards the bottom. These liquids then collect in a collection channel at the bottom of the inner wall, preventing liquid accumulation inside the plate that could lead to corrosion or compromise the seal. A debris barrier plate fixed to the bottom of the inner wall prevents external debris such as mud and sand from entering the collection channel, avoiding blockage of the flow path and ensuring smooth liquid drainage. During the installation of the polyethylene protective plate and the connecting plate, positioning block one on the back of the connecting plate slides into positioning groove one on the front of the polyethylene protective plate, and positioning block two slides into positioning groove two. This double positioning structure ensures that the outer shell of the connecting bolt is precisely aligned with the connecting groove, reducing installation deviation and improving assembly efficiency and connection stability. This structure, working in conjunction with the existing connection and fixing structure, allows the polyethylene protective plate to not only securely encase the oil tank, providing impact protection, flame retardancy, and explosion protection, but also optimize protective performance through flow guidance and positioning designs, further ensuring the safe use of the oil tank. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the exploded structure of the protective plate connecting plate of this utility model;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the polyethylene protective plate of this utility model;
[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A in the middle;
[0021] Figure 5 This is a schematic cross-sectional view of the connecting plate of the protective plate of this utility model;
[0022] Figure 6 This utility model Figure 5 Enlarged structural diagram of section B in the middle;
[0023] Figure 7 This is a schematic diagram of the flow channel structure of this utility model.
[0024] Explanation of key symbols:
[0025] 1. Polyethylene protective plate; 2. Oil tank; 3. Protective plate connecting plate; 4. Connecting groove; 5. Limiting groove; 6. Connecting bolt limiting groove; 7. Connecting bolt housing; 8. Limiting block; 9. Steel ball push rod; 10. Steel ball limiting groove; 11. Limiting steel ball; 12. Adjusting groove; 13. Oil tank clearance groove; 14. Guide groove; 15. Converging groove; 16. Debris barrier plate; 17. Positioning groove one; 18. Positioning block one; 19. Positioning groove two; 20. Positioning block two. Detailed Implementation
[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0027] Example:
[0028] Please combine Figure 1-7 This embodiment of a flame-retardant and explosion-proof fuel tank for automobiles includes a polyethylene protective plate 1, an oil storage tank 2 disposed inside the polyethylene protective plate 1, a protective plate connecting plate 3 disposed on the front of the polyethylene protective plate 1, a connecting groove 4 formed on the front of the polyethylene protective plate 1, a limiting groove 5 formed on the inner wall of the connecting groove 4, a connecting bolt limiting groove 6 formed on the front of the protective plate connecting plate 3, a connecting bolt housing 7 slidably connected to the inner wall of the connecting bolt limiting groove 6, the connecting bolt housing 7 penetrates the inner wall of the protective plate connecting plate 3 and extends therethrough, the outer wall of the connecting bolt housing 7 slidably connected to the inner wall of the connecting groove 4, a limiting block 8 fixedly connected to the inner wall of the connecting bolt housing 7, a steel ball push rod 9 threadedly connected to the inner wall of the limiting block 8, a steel ball limiting groove 10 formed on the inner wall of the connecting bolt housing 7, a limiting steel ball 11 disposed in contact with the inner wall of the steel ball limiting groove 10, and an adjustment groove 12 formed on the front of the steel ball push rod 9.
[0029] The outer wall of the ball push rod 9 is in contact with the inner wall of the connecting bolt housing 7, and the outer wall of the limiting ball 11 is in contact with the inner wall of the limiting groove 5.
[0030] Several connecting grooves 4, several limiting grooves 5, several connecting bolt limiting grooves 6, and several connecting bolt housings 7 are provided.
[0031] Several steel ball push rods 9 are provided, several steel ball limiting grooves 10 are provided, and several limiting steel balls 11 are provided.
[0032] The top of the polyethylene protective plate 1 is provided with an oil storage tank clearance groove 13, the inner wall of the polyethylene protective plate 1 is provided with a flow guide groove 14, and the bottom of the inner wall of the polyethylene protective plate 1 is provided with a flow convergence groove 15.
[0033] A debris barrier plate 16 is fixedly connected to the bottom of the inner wall of the polyethylene protective plate 1. A positioning groove 17 is opened on the front of the polyethylene protective plate 1, and a positioning block 18 is slidably connected to the inner wall of the positioning groove 17.
[0034] The end of the positioning block 18 away from the polyethylene protective plate 1 is fixedly connected to the back of the protective plate connecting plate 3. The front of the polyethylene protective plate 1 is provided with a positioning groove 29. The inner wall of the positioning groove 219 is slidably connected to the positioning block 20. The end of the positioning block 20 away from the polyethylene protective plate 1 is fixedly connected to the back of the protective plate connecting plate 3.
[0035] The implementation principle of a flame-retardant and explosion-proof fuel tank for automobiles in this embodiment is as follows: The polyethylene protective plate 1 provides impact protection for the internally contacted fuel tank 2, and the connecting plate 3 enhances the overall structural stability of the polyethylene protective plate 1. During installation of the polyethylene protective plate 1 and the connecting plate 3, the positioning block 18 on the back of the connecting plate 3 slides into the positioning groove 17 on the front of the polyethylene protective plate 1, and the positioning block 20 slides into the positioning groove 19. This double positioning structure ensures that the connecting bolt housing 7 is precisely aligned with the connecting groove 4, reducing installation deviations and improving assembly efficiency and connection stability. Then, several connecting bolt housings 7 are aligned with several connecting bolt limiting grooves 6 on the front of the connecting plate 3 and inserted, allowing the connecting bolt housings 7 to penetrate the connecting plate 3 and slide into the connecting groove 4 on the front of the polyethylene protective plate 1. A tool is inserted into the adjusting groove 12 on the front of the ball ball pusher 9, and then the ball ball pusher 9 is rotated, causing it to move into the connecting bolt housing 7 under the action of the threads on the inner wall of the limiting block 8. As the ball bearing pusher 9 advances, its outer wall pushes several ball bearing 11 within several ball bearing limiting grooves 10 on the inner wall of the connecting bolt housing 7, causing the ball bearing 11 to partially disengage from the ball bearing limiting grooves 10 and engage with several limiting grooves 5 on the inner wall of the connecting groove 4, thereby fixing the connecting bolt housing 7 and achieving a firm connection between the polyethylene protective plate 1 and the protective plate connecting plate 3. Through the above structural cooperation, the polyethylene protective plate 1 stably wraps around the oil tank 2, playing a role in flame retardancy, explosion prevention, and impact protection, ensuring the safe use of the oil tank 2, solving the problems of weak impact protection, loose connection, and difficult maintenance of traditional oil tanks, and significantly improving safety, economy, and adaptability. Furthermore, the oil tank clearance groove 13 opened at the top of the polyethylene protective plate 1 is used to adapt to the top structure of the oil tank 2, avoiding interference between the protective plate and the oil tank 2 during installation or vibration, ensuring that the polyethylene protective plate 1 fits tightly against the outer wall of the oil tank 2, and improving the fit of the protection. The flow channel 14 on the inner wall of the polyethylene protective plate 1 guides liquids that may seep between the protective plate and the oil tank 2, such as rainwater and cleaning water, to flow to the bottom and then collect through the flow-gathering channel 15 at the bottom of the inner wall. This prevents liquid from accumulating inside the protective plate, causing corrosion or affecting the fit between the protective plate and the oil tank 2. The debris barrier 16 fixed at the bottom of the inner wall prevents external debris such as mud and sand from entering the flow-gathering channel 15, avoiding blockage of the flow path and ensuring smooth liquid discharge. The above structure works in conjunction with the original connection and fixing structure, enabling the polyethylene protective plate 1 to not only securely wrap the oil tank 2 and provide impact protection, flame retardancy, and explosion protection, but also optimize protective performance through flow guidance and positioning designs, further ensuring the safe use of the oil tank 2.
[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A flame-retardant and explosion-proof fuel tank for automobiles, characterized in that, The system includes a polyethylene protective plate (1), an oil reservoir (2) is disposed inside the polyethylene protective plate (1), a protective plate connecting plate (3) is disposed on the front of the polyethylene protective plate (1), a connecting groove (4) is provided on the front of the polyethylene protective plate (1), a limiting groove (5) is provided on the inner wall of the connecting groove (4), a connecting bolt limiting groove (6) is provided on the front of the protective plate connecting plate (3), and a connecting bolt outer shell (7) is slidably connected to the inner wall of the connecting bolt limiting groove (6). The shell (7) penetrates the inner wall of the protective plate connecting plate (3) and extends therethrough. The outer wall of the connecting bolt shell (7) is slidably connected to the inner wall of the connecting groove (4). The inner wall of the connecting bolt shell (7) is fixedly connected to a limiting block (8). The inner wall of the limiting block (8) is threadedly connected to a steel ball push rod (9). The inner wall of the connecting bolt shell (7) is provided with a steel ball limiting groove (10). The inner wall of the steel ball limiting groove (10) is in contact with a limiting steel ball (11). The front of the steel ball push rod (9) is provided with an adjustment groove (12).
2. The flame-retardant and explosion-proof fuel tank for automobiles as described in claim 1, characterized in that: The outer wall of the ball push rod (9) is in contact with the inner wall of the connecting bolt housing (7), and the outer wall of the limiting ball (11) is in contact with the inner wall of the limiting groove (5).
3. The flame-retardant and explosion-proof fuel tank for automobiles as described in claim 1, characterized in that: The connecting groove (4) has several openings, the limiting groove (5) has several openings, the connecting bolt limiting groove (6) has several openings, and the connecting bolt outer shell (7) has several openings.
4. The flame-retardant and explosion-proof fuel tank for automobiles as described in claim 1, characterized in that: The ball push rod (9) is provided in several ways, the ball limiting groove (10) is provided in several ways, and the limiting ball (11) is provided in several ways.
5. The flame-retardant and explosion-proof fuel tank for automobiles as described in claim 1, characterized in that: The top of the polyethylene protective plate (1) is provided with an oil storage tank clearance groove (13), the inner wall of the polyethylene protective plate (1) is provided with a flow guide groove (14), and the bottom of the inner wall of the polyethylene protective plate (1) is provided with a flow convergence groove (15).
6. The flame-retardant and explosion-proof fuel tank for automobiles as described in claim 5, characterized in that: The inner wall bottom of the polyethylene protective plate (1) is fixedly connected to a debris blocking plate (16), and a positioning groove (17) is opened on the front side of the polyethylene protective plate (1). A positioning block (18) is slidably connected to the inner wall of the positioning groove (17).
7. The flame-retardant and explosion-proof fuel tank for automobiles as described in claim 6, characterized in that: The end of the positioning block 1 (18) away from the polyethylene protective plate (1) is fixedly connected to the back of the protective plate connecting plate (3). The polyethylene protective plate (1) has a positioning groove 2 (19) on the front. The positioning groove 2 (19) is slidably connected to the inner wall of the positioning block 2 (20). The end of the positioning block 2 (20) away from the polyethylene protective plate (1) is fixedly connected to the back of the protective plate connecting plate (3).