Multi-stage buffer structure of highway guardrail plate
By incorporating a multi-stage buffer structure on the guardrail, including buffer springs, buffer plates, and buffer airbags, collision energy is gradually absorbed and dispersed, solving the problem of insufficient energy absorption in existing guardrails during high-speed collisions and reducing injuries to vehicles and occupants.
Patent Information
- Application Number
- CN202520460299.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing guardrail buffer structures are unable to effectively absorb and disperse the enormous collision energy during high-speed vehicle collisions, resulting in significant damage to vehicles and occupants.
It adopts a multi-level buffer structure, including components such as buffer springs, buffer plates, buffer layers and buffer airbags, and gradually absorbs collision energy through a multi-layer buffer mechanism, using elastic deformation and material deformation to absorb energy.
It effectively reduces injuries to vehicles and occupants in collisions by gradually absorbing and dispersing collision energy through a multi-level buffer structure, thereby reducing direct impact damage to the guardrail.
Smart Images
Figure CN223893287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road safety facilities technology, and in particular to a multi-level buffer structure for highway guardrails. Background Technology
[0002] With rapid economic development and accelerated urbanization, my country's expressway network has become increasingly sophisticated, and the number of vehicles has continued to grow. Expressways, as vital transportation hubs connecting cities and regions, have greatly facilitated the rapid flow of goods, people, and information, providing strong support for economic and social development. However, with the widespread use of expressways, the incidence of traffic accidents has also increased, especially high-speed collisions on expressways, which often result in serious casualties and property damage.
[0003] The existing technology has the following defects or problems:
[0004] Existing guardrail buffer structures are simple and cannot effectively absorb and disperse the huge collision energy in the event of a high-speed vehicle collision, which can easily lead to serious injuries to the vehicle and its occupants in the accident.
[0005] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content
[0006] To overcome the above shortcomings, this utility model provides a multi-level buffer structure for high-speed guardrails, aiming to improve the problem that the existing guardrail buffer structure is simple and cannot effectively absorb and disperse the huge collision energy in the event of a high-speed vehicle collision, which can easily lead to serious injuries to vehicles and occupants in accidents.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a multi-level buffer structure for a high-speed guardrail, comprising two connecting plates and a guardrail body, wherein sleeves are fixedly connected to the left and right sides of the front end of the rear connecting plate, and a buffer mechanism is provided on the inner bottom wall of the two sleeves.
[0008] The buffer mechanism includes two pads, both of which are fixedly connected to the inner bottom wall of the sleeve. A buffer spring A is fixedly connected to the front end of each of the two pads. Movable pressure handles are fixedly connected to the left and right sides of the rear end of the front connecting plate. Connecting flanges are fixedly connected to adjacent sides of the outer walls of the two sleeves. Guide rods are fixedly connected to adjacent sides of the two connecting flanges. Two collars are slidably connected to the outer walls of the guide rods. First angle adjusting components are fixedly connected to the outer walls of the two collars. Connecting rods are rotatably connected to the middle of multiple first angle adjusting components. Second angle adjusting components are rotatably connected to the ends of multiple connecting rods away from the first angle adjusting components. A buffer spring B is fixedly connected to adjacent sides of the two collars. An energy-absorbing component is provided on the inner side wall of the guardrail body.
[0009] As a further description of the above technical solution:
[0010] The energy-absorbing component includes a buffer plate, which is slidably connected to the inner side wall of the guardrail body. A second buffer layer is fixedly connected to the front end of the buffer plate, and a first buffer layer is fixedly connected to the front end of the second buffer layer. Rubber plates are fixedly connected to the front ends of both the left and right sides of the guardrail body.
[0011] As a further description of the above technical solution:
[0012] Both movable pressure handles are slidably connected to the inner wall of the sleeve, and the multiple second angle adjusting parts are fixedly connected to the adjacent side of the connecting plate at opposite ends.
[0013] As a further description of the above technical solution:
[0014] The rear end of the buffer plate is fixedly connected to a plurality of evenly distributed compression springs, and the ends of the plurality of compression springs away from the buffer plate are all fixedly connected to the inner bottom wall of the guardrail body.
[0015] As a further description of the above technical solution:
[0016] A fixing post is provided at the rear middle part of the guardrail body, and a fixing plate is fixedly connected to the front middle part of the fixing post.
[0017] As a further description of the above technical solution:
[0018] The front end of the fixed plate is fixedly connected to a buffer folding airbag A, and the front end of the buffer folding airbag A is fixedly connected to the middle of the rear connecting plate.
[0019] As a further description of the above technical solution:
[0020] The fixed pile is fixedly connected to brackets on both the left and right sides, and buffer folding airbags B are fixedly connected to the front ends of the two brackets. Fastening bolts are threadedly connected to the middle of the two brackets.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, two sleeves are installed between two connecting plates fixed at the rear end of the guardrail body, and a buffer spring A is provided inside the sleeve. At the same time, a guide rod is fixed on the adjacent side of the two sleeves through a connecting flange, and two sliding collars on the guide rod are connected by a buffer spring B. Meanwhile, the first angle adjustment piece installed on the outer wall of the two collars is connected to the second adjustment piece fixed on the connecting plate through the connecting rod. Thus, when the guardrail body is impacted, the movable handle squeezes the buffer spring A, and at the same time, the two collars squeeze the buffer spring B inward, which can gradually reduce and absorb the collision energy.
[0023] 2. In this utility model, by installing a second buffer layer and a first buffer layer on the top of the buffer plate that slides inside the guardrail body, the first buffer layer can absorb the collision energy first when a vehicle collides, reducing the direct impact of the collision force on the guardrail body. After the first buffer layer absorbs a certain amount of energy, the second buffer layer continues to play its role, further absorbing the collision energy and reducing the damage to the vehicle and its occupants. Attached Figure Description
[0024] Figure 1 This is a top view of a multi-stage buffer structure for a high-speed guardrail proposed in this utility model;
[0025] Figure 2 Figure A is an enlarged view of a multi-level buffer structure for a high-speed guardrail proposed in this utility model;
[0026] Figure 3 Figure B is an enlarged view of a multi-level buffer structure for a high-speed guardrail proposed in this utility model;
[0027] Figure 4 This is an enlarged view of Figure C, which shows a multi-level buffer structure for a high-speed guardrail proposed in this utility model.
[0028] Legend:
[0029] 1. Connecting plate; 2. Sleeve; 3. Pad; 4. Buffer spring A; 5. Movable pressure handle; 6. Connecting flange; 7. Guide rod; 8. Collar; 9. First angle adjusting piece; 10. Connecting rod; 11. Second angle adjusting piece; 12. Buffer spring B; 13. Guardrail body; 14. Buffer plate; 15. Second buffer layer; 16. First buffer layer; 17. Compression spring; 18. Rubber plate; 19. Fixed post; 20. Fixed plate; 21. Buffer folding airbag A; 22. Bracket; 23. Buffer folding airbag B; 24. Fastening bolt. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment of a multi-level buffer structure for a high-speed guardrail, comprising two connecting plates 1 and a guardrail body 13, wherein sleeves 2 are fixedly connected to the left and right sides of the front end of the rear connecting plate 1, and the inner bottom wall buffer mechanism of the two sleeves 2.
[0032] The buffer mechanism includes two pads 3, both of which are fixedly connected to the inner bottom wall of the sleeve 2. A buffer spring A4 is fixedly connected to the front end of each of the two pads 3. Movable pressure handles 5 are fixedly connected to the left and right sides of the rear end of the front connecting plate 1. Connecting flanges 6 are fixedly connected to adjacent sides of the outer walls of the two sleeves 2. Guide rods 7 are fixedly connected to adjacent sides of the two connecting flanges 6. Two collars 8 are slidably connected to the outer walls of the guide rods 7. First adjusting members 9 are fixedly connected to the outer walls of the two collars 8. Connecting rods 10 are rotatably connected to the middle of the plurality of first adjusting members 9. Second adjusting members 11 are rotatably connected to the ends of the plurality of connecting rods 10 away from the first adjusting members 9. A buffer spring B12 is fixedly connected to adjacent sides of the two collars 8. An energy-absorbing component is provided on the inner wall of the guardrail body 13. The two movable pressure handles 5 are slidably connected to the inner wall of the sleeve 2. The ends of the plurality of second adjusting members 11 away from each other are fixedly connected to adjacent sides of the connecting plate 1.
[0033] Specifically: By compressing the buffer springs A4 and B12, the elasticity of the springs can be used to gradually slow down and absorb the collision energy.
[0034] Reference Figure 1 and Figure 4The energy-absorbing component includes a buffer plate 14, which is slidably connected to the inner side wall of the guardrail body 13. A second buffer layer 15 is fixedly connected to the front end of the buffer plate 14, and a first buffer layer 16 is fixedly connected to the front end of the second buffer layer 15. Rubber plates 18 are fixedly connected to the front ends of both the left and right sides of the guardrail body 13. A plurality of evenly distributed compression springs 17 are fixedly connected to the rear end of the buffer plate 14, and the ends of the plurality of compression springs 17 away from the buffer plate 14 are fixedly connected to the inner bottom wall of the guardrail body 13.
[0035] Specifically: By fixing rubber plates 18 to the front ends of both sides of the guardrail body 13, a portion of the impact energy can be absorbed when the buffer plate 14 is impacted and moves backward.
[0036] Reference Figure 1 A fixed post 19 is provided at the rear end of the middle part of the guardrail body 13, and a fixed plate 20 is fixedly connected to the front end of the middle part of the fixed post 19; a buffer folding airbag A21 is fixedly connected to the front end of the fixed plate 20, and the front end of the buffer folding airbag A21 is fixedly connected to the middle part of the rear end connecting plate 1; brackets 22 are fixedly connected to both the left and right sides of the fixed post 19, and buffer folding airbags B23 are fixedly connected to the front end of both brackets 22, and fastening bolts 24 are threadedly connected to the middle part of both brackets 22.
[0037] Specifically: By placing buffer folding airbags A21 and B23 between the bracket 22 and the connecting plate, the remaining collision energy can continue to be absorbed.
[0038] Working principle: The device uses a second buffer layer 15 and a first buffer layer 16 installed on the top of a buffer plate 14 that slides inside the guardrail body 13. When a vehicle collides, the first buffer layer 16 first absorbs the collision energy, reducing the direct impact of the collision force on the guardrail body 13. When the first buffer layer 16 absorbs a certain amount of energy, the second buffer layer 15 continues to play its role, further absorbing the collision energy and reducing the damage to the vehicle and its occupants.
[0039] Then, two sleeves 2 are installed between two connecting plates 1 fixed at the rear end of the guardrail body 13, and a buffer spring A4 is installed inside the sleeve 2. At the same time, a guide rod 7 is fixed on the adjacent side of the two sleeves 2 through a connecting flange 6, and two collars 8 sliding on the guide rod 7 are connected by a buffer spring B12. Meanwhile, the first angle adjustment piece 9 installed on the outer wall of the two collars 8 are connected to the second adjustment piece 11 fixed on the connecting plate 1 through a connecting rod 10. Thus, when the guardrail body 13 is impacted, the buffer spring A4 is squeezed by the movable pressure handle 5, and the two collars 8 squeeze the buffer spring B12 inward, which can gradually reduce and absorb the collision energy.
[0040] Finally, by setting buffer folding airbags A21 and B23 between the bracket 22 and the connecting plate, the remaining collision energy can continue to be absorbed. Through this multi-level buffer structure, the damage to the vehicle and occupants from the collision can be effectively reduced.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-stage buffer structure for a high-speed guardrail, comprising two connecting plates (1) and a guardrail body (13), characterized in that: Sleeves (2) are fixedly connected to the left and right sides of the front end of the connecting plate (1) at the rear end, and a buffer mechanism is provided on the inner bottom wall of the two sleeves (2); The buffer mechanism includes two pads (3), both of which are fixedly connected to the inner bottom wall of the sleeve (2). A buffer spring A (4) is fixedly connected to the front end of each of the two pads (3). Movable pressure handles (5) are fixedly connected to the left and right sides of the rear end of the front connecting plate (1). Connecting flanges (6) are fixedly connected to adjacent sides of the outer walls of the two sleeves (2). Guide rods (7) are fixedly connected to adjacent sides of the two connecting flanges (6). Two collars (8) are slidably connected to the outer side wall of the guardrail. A first angle adjusting member (9) is fixedly connected to the outer side wall of each of the two collars (8). A connecting rod (10) is rotatably connected to the middle of each of the first angle adjusting members (9). A second angle adjusting member (11) is rotatably connected to the end of each of the connecting rods (10) away from the first angle adjusting member (9). A buffer spring B (12) is fixedly connected to the adjacent side of the two collars (8). An energy-absorbing component is provided on the inner side wall of the guardrail body (13).
2. The multi-stage buffer structure for a high-speed guardrail according to claim 1, characterized in that: The energy-absorbing component includes a buffer plate (14), which is slidably connected to the inner side wall of the guardrail body (13). A second buffer layer (15) is fixedly connected to the front end of the buffer plate (14), and a first buffer layer (16) is fixedly connected to the front end of the second buffer layer (15). Rubber plates (18) are fixedly connected to the front ends of both the left and right sides of the guardrail body (13).
3. The multi-stage buffer structure for a high-speed guardrail according to claim 1, characterized in that: Both movable pressure handles (5) are slidably connected to the inner wall of the sleeve (2), and multiple second angle adjustment pieces (11) are fixedly connected to the adjacent side of the connecting plate (1) at opposite ends.
4. The multi-stage buffer structure for a high-speed guardrail according to claim 2, characterized in that: The rear end of the buffer plate (14) is fixedly connected to a plurality of uniformly distributed compression springs (17), and the ends of the plurality of compression springs (17) away from the buffer plate (14) are all fixedly connected to the inner bottom wall of the guardrail body (13).
5. The multi-stage buffer structure for a high-speed guardrail according to claim 1, characterized in that: A fixing post (19) is provided at the rear end of the middle part of the guardrail body (13), and a fixing plate (20) is fixedly connected to the front end of the middle part of the fixing post (19).
6. The multi-stage buffer structure for a high-speed guardrail according to claim 5, characterized in that: The front end of the fixed plate (20) is fixedly connected to a buffer folding airbag A (21), and the front end of the buffer folding airbag A (21) is fixedly connected to the middle of the rear connecting plate (1).
7. A multi-stage buffer structure for a high-speed guardrail according to claim 5, characterized in that: The fixed pile (19) is fixedly connected to the left and right sides with brackets (22), and the front ends of the two brackets (22) are fixedly connected to the buffer folding airbags B (23). The middle of the two brackets (22) is threaded with fastening bolts (24).