Protective node at sharp turn of road
By installing rotatable impact-absorbing cylinders and impact-absorbing structures at sharp road bends, the problem of guardrails being unable to effectively block high-speed vehicles has been solved, achieving effective interception of vehicles and dissipation of impact forces, thus reducing the risk of accidents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-03
AI Technical Summary
Guardrails at sharp road bends are unable to withstand the strong impact of high-speed vehicles, and are prone to deformation and breakage, failing to effectively stop vehicles and leading to serious accidents and casualties.
It adopts a rotatable impact-absorbing anti-collision cylinder structure and an impact-absorbing structure. Through the rotation of the anti-collision cylinder and the cooperation of the buffer components, it absorbs the impact force of the vehicle and prevents the vehicle from driving off the road.
It effectively prevents sudden accidents at sharp turns, reduces impact, ensures the safety of passengers, and prevents vehicles from leaving the road.
Smart Images

Figure CN224078034U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of road protection technology, and in particular relates to a protective node at sharp road bends. Background Technology
[0002] Sharp bends are notorious for traffic accidents due to the sudden change in vehicle trajectory and the effect of centrifugal force. Among all types of road accidents, those occurring at sharp bends account for a high proportion, and these accidents often have more serious consequences due to factors such as high vehicle speed and difficulty in turning.
[0003] The guardrails at sharp turns are usually simple metal structures, which are insufficient in strength and toughness to withstand the strong impact of high-speed vehicles. In addition, at sharp turns on some mountain roads, due to the complex terrain and high vehicle speeds, the guardrails are prone to deformation and breakage when a vehicle loses control and crashes into them, failing to provide effective protection and causing the vehicle to run off the road, resulting in serious casualties and property damage. Therefore, there is a need for a protective node at sharp turns that uses a rotatable impact-absorbing structure to deflect and intercept vehicles, preventing them from leaving the road surface. It is also equipped with an impact-absorbing structure that can absorb the impact force to a certain extent, thereby ensuring the safety of drivers and passengers. Utility Model Content
[0004] The purpose of this utility model is to provide a protective node at sharp road bends, which uses a rotatable impact-absorbing anti-collision cylinder structure to deflect and intercept vehicles, preventing them from leaving the road surface. It is also equipped with an impact buffer structure, which can absorb the impact force to a certain extent, thereby ensuring the personal safety of drivers and passengers and solving the above-mentioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A protective node at a sharp bend in a road includes multiple embedded plates pre-embedded and installed on one side of the road; a protective post is fixedly connected to the top of the embedded plate; a rotatable anti-collision cylinder is provided on the right side of the protective post; a buffer assembly is provided between the protective post and the anti-collision cylinder; the buffer assembly includes a support post located on the right side of the protective post; an inner support tube is connected to the inner cavity of the anti-collision cylinder; the inner support tube is rotatably connected to the surface of the support post; steel bow strips are fixedly connected to the top and bottom of the right side of the protective post; a fixing frame is welded to the top and bottom of the left side of the support post; the right end of the steel bow strip penetrates into the inner cavity of the fixing frame; and a guardrail is provided on the right side of the protective post.
[0006] Preferably, guide plates are welded to the top and bottom of the left side of the support column, and guide sleeves are fixedly connected to the top and bottom of the right side of the protective column, with the guide plates slidably connected to the inner cavity of the guide sleeves.
[0007] Preferably, a first bolt is threaded to the left side of the top of the guide plate, and arc-shaped guide grooves adapted to the first bolt are provided at the top and bottom of the guide sleeve.
[0008] Preferably, the front and rear sides of the fixed frame are provided with arc-shaped limiting grooves adapted to the steel bow strip, and the right end of the steel bow strip is slidably connected to the inner cavity of the arc-shaped limiting groove.
[0009] Preferably, the protective post has triangular support plates welded to both the top and bottom ends on the right side, and two second bolts are threaded to the right side of the guardrail. The left end of the second bolt passes through to the left side of the guardrail and is threaded to the triangular support plate.
[0010] Preferably, the surface of the anti-collision cylinder is bonded with three reflective strips.
[0011] The beneficial effects of this utility model are:
[0012] 1. This utility model protects vehicles traveling on sharp turns by using a combination of embedded plates, protective posts and guardrails. At the same time, the combination of anti-collision cylinders and buffer components blocks and reduces the force on vehicles involved in sudden accidents, thereby achieving the purpose of preventing vehicles from leaving the road area and reducing and buffering the impact force.
[0013] 2. This utility model uses the guide plate, guide sleeve and first bolt together to support and fix the support column. At the same time, it allows the support column to move to the left to a certain extent after being violently impacted. Meanwhile, the first bolt slides in the inner cavity of the arc-shaped guide groove, thereby dissipating the impact force.
[0014] 3. With the combined use of the triangular support plate and the second bolt, this utility model provides support and fixation for the guardrail, serving as the last line of defense for vehicles and effectively preventing vehicles from leaving the road area after a sudden accident. Attached Figure Description
[0015] in:
[0016] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;
[0017] Figure 2 This is a perspective view of a protective post, anti-collision cylinder, and buffer assembly according to one embodiment of the present invention;
[0018] Figure 3 This is a three-dimensional exploded view of an embodiment of the present invention, including an embedded plate, a protective post, and a protective railing.
[0019] Figure 4This is a three-dimensional exploded view of an embodiment of the present invention, including an anti-collision cylinder, a buffer assembly, and a guide plate.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Embedded plate, 2. Protective post, 3. Anti-collision cylinder, 4. Buffer assembly, 41. Support column, 42. Inner support tube, 43. Steel bow strip, 44. Fixing frame, 45. Arc-shaped limiting groove, 5. Guide plate, 6. Guide sleeve, 7. First bolt, 8. Arc-shaped guide groove, 9. Triangular support plate, 10. Guardrail, 11. Second bolt, 12. Reflective strip. Detailed Implementation
[0022] In the following description, embodiments of the protective node at sharp road bends of this utility model will be presented with reference to the accompanying drawings.
[0023] Figure 1-4This invention illustrates a protective node at a sharp road bend, comprising multiple embedded plates 1 pre-installed on one side of the road. A protective post 2 is fixedly connected to the top of each embedded plate 1. A rotatable anti-collision cylinder 3 is provided on the right side of the protective post 2. Triangular support plates 9 are welded to the front and rear ends of the top and bottom of the right side of the protective post 2. Two second bolts 11 are threadedly connected to the right side of the guardrail 10. The left end of each second bolt 11 extends to the left side of the guardrail 10 and is threadedly connected to the triangular support plate 9. Through the combined use of the triangular support plate 9 and the second bolts 11, the guardrail 10 is supported and fixed, serving as a final protective barrier for vehicles, effectively preventing vehicles from leaving the road area after a sudden accident. Three reflective strips 12 are adhered to the surface of the anti-collision cylinder 3. A buffer assembly 4 is provided between the protective post 2 and the anti-collision cylinder 3. The buffer assembly 4 includes a support post 41 located on the right side of the protective post 2. An inner support tube 42 is connected to the inner cavity of the anti-collision cylinder 3, and the inner support tube 42 is rotatably connected to the surface of the support post 41. The top and bottom of the right side of the protective post 2... Each part is fixedly connected with a steel bow strip 43. A fixing frame 44 is welded to the top and bottom of the left side of the support column 41. The right end of the steel bow strip 43 extends into the inner cavity of the fixing frame 44. Arc-shaped limiting grooves 45, adapted to the steel bow strip 43, are opened on the front and rear sides of the fixing frame 44. The right end of the steel bow strip 43 is slidably connected to the inner cavity of the arc-shaped limiting groove 45. Guide plates 5 are welded to the top and bottom of the left side of the support column 41. Guide sleeves 6 are fixedly connected to the top and bottom of the right side of the protective column 2. The guide plates 5 are slidably connected to the guide sleeves. The inner cavity of 6 has a first bolt 7 threadedly connected to the left side of the top of the guide plate 5. The top and bottom of the guide sleeve 6 are provided with arc-shaped guide grooves 8 that are adapted to the first bolt 7. Through the cooperation of the guide plate 5, the guide sleeve 6 and the first bolt 7, the support column 41 is supported and fixed. At the same time, the support column 41 can be displaced to the left after being violently impacted. Meanwhile, the first bolt 7 slides in the inner cavity of the arc-shaped guide groove 8, thereby dissipating the impact force. A guardrail 10 is provided on the right side of the protective column 2.
[0024] Working Principle: When this utility model is used, the pre-embedded plate 1, protective post 2, and guardrail 10 work together to intercept and protect vehicles traveling at sharp turns, thereby preventing vehicles from leaving the road area in the event of a sudden accident. When a vehicle has a sudden accident at a sharp turn, it impacts the surface of the anti-collision cylinder 3. At this time, the anti-collision cylinder 3 rotates, dissipating the direct impact force through rotation. Simultaneously, the support post 41 is displaced to the left under the limiting and guiding action of the guide plate 5 and the guide sleeve 6. At this time, the steel bow strip 43 undergoes a certain deformation, causing the right end of the steel bow strip 43 to slide in the inner cavity of the arc-shaped limiting groove 45, thereby further dissipating the impact force on the support post 41, effectively reducing the impact force received by the vehicle after the collision. Under the buffering and rotational action of multiple anti-collision cylinders 3, the vehicle moves along the distribution path of multiple anti-collision cylinders 3. At the same time, under the blocking action of the guardrail 10, the vehicle is effectively prevented from leaving the road area after the collision, reducing the accident injury suffered by the driver.
[0025] In summary, the protective node at the sharp bend of the road, through the combined use of the pre-embedded plate 1, the protective post 2, and the guardrail 10, protects vehicles traveling at the sharp bend. At the same time, with the combined use of the anti-collision cylinder 3 and the buffer component 4, it blocks and dissipates the force of vehicles involved in sudden accidents, thereby achieving the purpose of preventing vehicles from leaving the road area and dissipating and buffering the impact force.
Claims
1. A road turn-off protection node, characterized by The utility model relates to a road protection device, including a plurality of pre -buried board (1) of pre -buried installation on the side of road, the top of pre -buried board (1) is fixedly connected with the guard column (2), the right side of guard column (2) is provided with rotatable crashproof cylinder (3), and the buffer assembly (4) is arranged between guard column (2) and crashproof cylinder (3), the buffer assembly (4) includes the support column (41) of being located in the right side of guard column (2), the inner cavity of crashproof cylinder (3) is connected with inner support pipe (42), inner support pipe (42) rotationally connects in the surface of support column (41), the top and bottom of right side of guard column (2) are fixedly connected with steel bow strip (43), the top and bottom of left side of support column (41) are all welded with fixed frame (44), the right end of steel bow strip (43) is penetrated to the inner chamber of fixed frame (44), the right side of guard column (2) is provided with guardrail (10).
2. The road turn-off protection node of claim 1, wherein, The top and bottom of left side of support column (41) are all welded with guide plate (5), the top and bottom of right side of guard column (2) are fixedly connected with guide sleeve (6), guide plate (5) is connected in the inner chamber of guide sleeve (6) slidingly.
3. The road turn-off protection node of claim 2, wherein, The left side of top of guide plate (5) is threadedly connected with first bolt (7), and the top and bottom of guide sleeve (6) are provided with arc-shaped guide groove (8) matched with first bolt (7).
4. The road turn-off protection node of claim 3, wherein, The front side and rear side of fixed frame (44) are provided with arc-shaped limiting slot (45) matched with steel bow strip (43), and the right end of steel bow strip (43) is connected in the inner chamber of arc-shaped limiting slot (45) slidingly.
5. The road turn-off protection node of claim 4, wherein, The front and rear ends of top and bottom of right side of guard column (2) are all welded with triangular support plate (9), the right side of guardrail (10) is threadedly connected with two second bolts (11), and the left end of second bolt (11) is penetrated to the left side of guardrail (10) and is threadedly connected with triangular support plate (9).
6. The road turn-off protection node of claim 5, wherein, The surface of crashproof cylinder (3) is bonded with three light reflection strips (12).