Anti-collision guardrail for municipal road and bridge design
By designing a rotating horizontal bar to buffer impact force, the problem of existing crash barriers causing injury to occupants and damage to vehicles has been solved, achieving safety protection and low-cost maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-03-03
AI Technical Summary
Existing municipal road and bridge guardrails are mostly made of metal or stone piers. Although they can stop out-of-control vehicles, they can cause injuries to people inside the vehicle and damage to the vehicle in the event of a high-speed collision.
A crash barrier was designed, comprising guardrail posts, rotating crossbars, reinforced baffles, and sealing plates. The rotating crossbars buffer impact forces, reduce vehicle damage, and facilitate maintenance.
It effectively protects the safety of people inside the vehicle, reduces the probability of guardrail deformation, and reduces maintenance costs and time.
Smart Images
Figure CN223963872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of municipal road and bridge protection facilities, and in particular to a crash barrier designed for municipal roads and bridges. Background Technology
[0002] Municipal road and bridge crash barriers are railings installed on both sides of roads and bridges. They form a physical barrier through a rigid structure to intercept motor vehicles and prevent out-of-control vehicles from crashing off the road or bridge, causing loss of life and property.
[0003] Current municipal road and bridge guardrails are generally constructed of hard materials such as metal, stone piers, or stone pillars. Although they can prevent out-of-control vehicles from running off the road or bridge, when a vehicle collides with a guardrail made of metal, stone piers, or stone pillars at high speed, the impact force generated by the collision can also cause injury to the people inside the vehicle and damage to the vehicle. Utility Model Content
[0004] This utility model provides a crash barrier design for municipal roads and bridges, which solves the problem that current municipal road and bridge crash barriers are generally constructed of hard materials such as metal, stone piers or stone pillars. Although they can prevent out-of-control vehicles from running off the road or bridge, when a vehicle collides with a guardrail made of metal, stone piers or stone pillars at high speed, the impact force generated by the collision will also cause injury to the people inside the vehicle and damage to the vehicle.
[0005] This utility model provides a crash barrier for municipal road and bridge design, specifically including: guardrail posts, rotating horizontal rails, and four rotating horizontal rails between two guardrail posts. A reinforcing baffle is bolted to the front surface of each guardrail post, and a sealing plate covers the front of the reinforcing baffle. The sealing plate is bolted to the front of the reinforcing baffle. Horizontal rail connecting rods are fixedly connected to both ends of each rotating horizontal rail, and a horizontal rail end wheel is fixedly connected to the upper end of each connecting rod. The horizontal rail end wheel is located between the guardrail post and the reinforcing baffle, and the horizontal rail connecting rods are installed vertically.
[0006] Furthermore, the front surface of the guardrail post has four semi-circular grooves with an inner groove structure. The axis of the inner groove is perpendicular to the side of the guardrail post. The left and right ends of the inner groove are respectively provided with an outer groove. The outer groove extends horizontally through the guardrail post and is coaxial with the inner groove.
[0007] Furthermore, the inner surface of the column inner groove is in close contact with the horizontal rail end wheel, and the outer groove of the column is in close contact with the connecting shaft of the horizontal rail end wheel.
[0008] Furthermore, the rear surface of the reinforced baffle is provided with four arc-shaped fastening grooves, which fit tightly against the end wheel of the crossbar.
[0009] Furthermore, a baffle block is fixedly connected to the rear surface of the reinforcing baffle, and the baffle block is tightly inserted into the outer groove of the column.
[0010] Furthermore, the sealing plate has side edges that are bent backward on both sides. The side edges of the plate are tightly fitted to the sides of the reinforcing baffle and the guardrail post. A side edge insertion port is provided on the rear edge of the side edge of the plate, and the inner edge of the side edge insertion port is fitted to the outer surface of the cross rail end wheel connecting shaft.
[0011] This utility model provides a crash barrier for municipal road and bridge design, which has the following beneficial effects:
[0012] The crash barrier of this utility model is installed on both sides of roads and bridges. The barrier can effectively intercept out-of-control vehicles. At the same time, when the barrier is hit by an external force, the rotating horizontal bar in the barrier can rotate to dissipate the force, thereby buffering the impact force generated by the impact, reducing the damage to the vehicle when it hits the crash barrier, and effectively protecting the lives of the people in the vehicle.
[0013] In addition, the backward rotation of the rotating horizontal bar not only cushions the impact but also reduces the impact on the guardrail, protecting it and decreasing the likelihood of deformation of the guardrail posts and rotating horizontal bars.
[0014] Furthermore, after the crash barrier is impacted, the rotating horizontal bar rotates backward and upward to cushion the impact. When repairing the crash barrier after clearing the vehicle, the bolts in front of the sealing plate are removed, allowing the sealing plate and reinforcing baffle to detach from the front of the guardrail post. This prevents the fastening lock groove from tightly engaging with the end wheel of the horizontal bar, allowing the rotating horizontal bar to freely rotate and adjust to its original angle. After adjustment, the reinforcing baffle is placed over the front of the guardrail post, and the reinforcing baffle and sealing plate are then tightly reinstalled in front of the guardrail post using bolts. The guardrail post and reinforcing baffle are then tightened, allowing the end wheel of the horizontal bar to be tightly locked again through the inner groove of the post and the fastening lock groove, maintaining the installation stability of the rotating horizontal bar. The crash barrier in this application is easy to repair after an impact, reducing maintenance costs and time. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0017] In the attached diagram:
[0018] Figure 1 A schematic diagram of the overall structure of this application is shown;
[0019] Figure 2This paper shows a schematic diagram of the structure in its disassembled state.
[0020] Figure 3 This application shows Figure 2 A schematic diagram of the structure at the rear;
[0021] Figure 4 This diagram shows the structure of the guardrail post and the sealing plate when separated.
[0022] Figure 5 A schematic diagram of the side edge socket of this application is shown;
[0023] Figure 6 A schematic diagram of the rotating horizontal bar of this application is shown;
[0024] Figure 7 This application shows Figure 2 A magnified structural diagram of point A in the middle;
[0025] Figure 8 This application shows Figure 3 A magnified structural diagram of point B in the middle section;
[0026] Figure 9 This application shows Figure 4 A magnified structural diagram of point C in the middle.
[0027] Figure label:
[0028] 1. Guardrail post; 101. Inner groove of post; 102. Outer groove of post; 2. Reinforcing baffle; 201. Baffle insert; 202. Fastening lock groove; 3. Rotating horizontal rail; 301. Horizontal rail connecting rod; 302. Horizontal rail end wheel; 4. Sealing guard plate; 401. Side edge of guard plate; 402. Side edge insertion. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] Example 1: Please refer to Figures 1 to 9 :
[0031] This utility model proposes a crash barrier for municipal road and bridge design, comprising: barrier posts 1, rotating horizontal rails 3, with four rotating horizontal rails 3 between two barrier posts 1. A reinforcing baffle 2 is bolted to the front surface of the barrier post 1, and a sealing plate 4 covers the front of the reinforcing baffle 2. The sealing plate 4 is bolted to the front of the reinforcing baffle 2. Horizontal rail connecting rods 301 are fixedly connected to both ends of the rotating horizontal rails 3, with the upper end of the horizontal rail connecting rods 301 fixed... The guardrail is connected to a horizontal end wheel 302, which is located between the guardrail post 1 and the reinforcing baffle 2. The horizontal connecting rod 301 is installed vertically. Under normal conditions, the horizontal end wheel 302 is tightly clamped by the guardrail post 1 and the reinforcing baffle 2, locking the horizontal end wheel 302 in the circumferential, radial and axial directions, so that the rotating horizontal bar 3 remains in a fixed state. It is connected between adjacent guardrail posts 1 to intercept the edge of the road and bridge and prevent pedestrians and vehicles from leaving the road and bridge.
[0032] In this embodiment, the front surface of the guardrail post 1 has four semi-circular grooves 101. The axis of the inner groove 101 is perpendicular to the side of the guardrail post 1. An outer groove 102 is formed at the left and right ends of the inner groove 101, and the outer groove 102 extends laterally through the guardrail post 1. The outer groove 102 is coaxial with the inner groove 101. The inner surface of the inner groove 101 is tightly fitted with the horizontal rail end wheel 302, and the outer groove 102 is tightly fitted with the connecting shaft of the horizontal rail end wheel 302. The rear surface of the reinforcing baffle 2 is also tightly fitted. The guardrail has four arc-shaped fastening grooves 202, which fit tightly with the horizontal rail end wheels 302. The horizontal rail end wheels 302 are surrounded by the inner groove 101 of the post and the fastening grooves 202. The reinforcing baffle 2 is fastened to the front of the guardrail post 1 with bolts to keep the horizontal rail end wheels 302 locked. The horizontal rail end wheels 302 are locked in the radial, axial and circumferential directions. The same inner groove 101 of the post can be used to install the horizontal rail end wheels 302 of the rotating horizontal rails 3 on both sides, making the guardrail structure easier to assemble and install.
[0033] In this embodiment, a baffle block 201 is fixedly connected to the rear surface of the reinforcing baffle 2. The baffle block 201 is tightly inserted into the outer groove 102 of the post, which facilitates the quick installation of the reinforcing baffle 2 in front of the guardrail post 1 and at the same time seals the outer groove 102 of the post.
[0034] In Example 2, based on Example 1, the sealing guard plate 4 has two sides bent backward to form guard plate side edges 401. The guard plate side edges 401 are tightly fitted to the sides of the reinforcing baffle 2 and the guardrail post 1. The rear edge of the guard plate side edge 401 has a side edge insertion port 402, and the inner edge of the side edge insertion port 402 is fitted to the outer surface of the connecting shaft of the horizontal rail end wheel 302. By enclosing the guardrail post 1 and the reinforcing baffle 2 with the sealing guard plate 4, the entry of external rainwater is reduced, which accelerates rusting and improves the service life of the crash barrier. The sealing guard plate 4 also covers the gap between the guardrail post 1 and the reinforcing baffle 2 and encloses the horizontal rail connecting rod 301, which has an aesthetic effect and makes the crash barrier look neat.
[0035] The working principle of this embodiment is as follows: When the crash barrier is installed, the mounting base at the lower end of the guardrail post 1 is fixed to the edge of the road bridge by bolts, and the spacing between adjacent guardrail posts 1 is kept equal. After the guardrail post 1 is installed, the rotating horizontal bar 3 is installed between two adjacent guardrail posts 1, so that the end wheels 302 of the horizontal bars at both ends are respectively installed into the inner groove 101 of the post 1 on both sides. After the installation of the four rotating horizontal bars 3 is completed, the reinforcing baffle 2 is covered in front of the guardrail post 1, so that the baffle insert 201 is inserted into the outer groove 102 of the post, and the locking groove 202 is tightly fitted to the front of the horizontal bar end wheel 302. Finally, the sealing plate 4 is installed, and the sealing plate 4 is sleeved around the front of the guardrail post 1 and the reinforcing baffle 2, and bolts are screwed through the sealing plate 4 and the reinforcing baffle 2 into the guardrail post. Inside post 1, the crash barrier is assembled. When a vehicle loses control and impacts the rotating horizontal bar 3, the rotating horizontal bar 3 will rotate backward and upward under the force, causing the end wheel 302 of the horizontal bar to rub against the inner groove 101 and the fastening lock groove 202 of the post. The rotation of the rotating horizontal bar 3 dissipates the impact force, better protecting the life and property safety of the driver. When repairing the crash barrier, the bolts in front of the sealing plate 4 are removed, allowing the sealing plate 4 and the reinforcing baffle 2 to detach from the front of the guardrail post 1, so that the rotating horizontal bar 3 can rotate freely to adjust to its original angle. The guardrail post 1, the reinforcing baffle 2, and the sealing plate 4 are then tightened and installed again with bolts, so that the end wheel 302 of the horizontal bar is tightly locked again through the inner groove 101 and the fastening lock groove 202, maintaining the installation firmness of the rotating horizontal bar 3, and completing the repair of the guardrail.
[0036] The following points should be noted in this article:
[0037] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0038] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0039] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A crash barrier for municipal road and bridge design, comprising: Guardrail column (1), rotating crossbar (3), four rotating crossbars (3) are arranged between the two guardrail columns (1), characterized in that the front surface of the guardrail column (1) is fixedly connected with a reinforcing baffle (2) through bolts, the front of the reinforcing baffle (2) is covered with a sealing guard plate (4), the sealing guard plate (4) is fixedly connected in front of the reinforcing baffle (2) through bolts, both ends of the rotating crossbar (3) are fixedly connected with a crossbar connecting rod (301), the upper end of the crossbar connecting rod (301) is fixedly connected with a crossbar end wheel (302), and the crossbar end wheel (302) is located between the guardrail column (1) and the reinforcing baffle (2); the crossbar connecting rod (301) is installed in a vertical state.
2. The anti-collision guardrail of the municipal road and bridge design according to claim 1, characterized in that, the front surface of the guardrail column (1) is provided with four column inner grooves (101) of semicircular groove structure, the axis of the column inner groove (101) is perpendicular to the side surface of the guardrail column (1), and one column outer groove (102) is arranged at the left end and the right end of the column inner groove (101) respectively, the column outer groove (102) penetrates through the guardrail column (1) horizontally, and the column outer groove (102) is coaxial with the column inner groove (101).
3. The anti-collision guardrail of the municipal road and bridge design according to claim 2, characterized in that, the inner surface of the column inner groove (101) is tightly fitted with the crossbar end wheel (302), and the connecting shaft of the column outer groove (102) is tightly fitted with the crossbar end wheel (302).
4. The anti-collision guardrail of the municipal road and bridge design according to claim 3, characterized in that, the rear surface of the reinforcing baffle (2) is provided with four fastening lock grooves (202) of arc structure, and the fastening lock grooves (202) are tightly fitted with the crossbar end wheel (302).
5. The anti-collision guardrail of the municipal road and bridge design according to claim 2, characterized in that, the rear surface of the reinforcing baffle (2) is fixedly connected with a baffle plug (201), and the baffle plug (201) is tightly inserted into the column outer groove (102).
6. The anti-collision guardrail of the municipal road and bridge design according to claim 3, characterized in that, both sides of the sealing guard plate (4) are bent rearward to form guard plate side edges (401), the guard plate side edges (401) are tightly fitted with the side surfaces of the reinforcing baffle (2) and the guardrail column (1), a side edge socket (402) is arranged at the rear edge of the guard plate side edge (401), and the inner edge of the side edge socket (402) is fitted with the outer surface of the connecting shaft of the crossbar end wheel (302).