Anti-collision fence

Abstract

The utility model belongs to the technical field of municipal facilities, and particularly relates to an anti-collision fence which comprises a fence body middle column assembly, transverse assembly supports are arranged at the two ends of the fence body middle column assembly respectively, and two trapezoidal energy absorption partition leaves, a displacement prevention connecting assembly and a load pressure supporting assembly are arranged on the inner side of the fence body middle column assembly. When the trapezoidal energy-absorbing partition page deforms due to collision, along with the application of the collision pressure, the trapezoidal surface of the trapezoidal energy-absorbing partition page contacted with the middle column of the crash barrier stretches the collision pressure to two sides, the connectivity of the trapezoidal energy-absorbing partition page and the middle column of the crash barrier is improved through the trapezoidal energy-absorbing partition page, so that a stress dispersion effect is achieved, and meanwhile, along with the further application of the pressure, the energy-absorbing partition page is prevented from falling off. After the trapezoidal energy-absorbing partition pages are completely deformed, when continuously applied stress acts on the periphery of the cylindrical hollow supporting pipe, the stress is dispersed from the inner side of the middle point supporting page to the deformed trapezoidal energy-absorbing partition pages again, so that the middle column of the crash barrier has the anti-collision performance, and meanwhile, the sufficient energy-absorbing effect can still be kept.

Description

Technical Field

[0001] This utility model belongs to the field of municipal facilities technology, and specifically relates to a crash barrier. Background Technology

[0002] Thin-walled structural tubes are lightweight, low-cost, and have superior energy absorption characteristics, making them commonly used in the manufacture of crash barriers. However, a problem with this type of crash barrier is that its energy absorption performance under three-point bending pressure is not ideal in the event of a single-point collision. As the impact pressure increases over a small area, the barrier stretches to both sides from the point of impact, while the point of impact is squeezed inward. With further increases in impact pressure, the deformation tendency at the bottom and top sides of the barrier will further increase, eventually leading to excessive deformation along the stress points on the top and bottom sides of the crash barrier, resulting in an inadequate interception effect during a collision. Utility Model Content

[0003] This utility model provides a crash barrier to solve the problems mentioned in the background art.

[0004] This utility model provides the following technical solution: a crash barrier, including a central column assembly, with horizontal mounting brackets at both ends of the central column assembly. Trapezoidal energy-absorbing partitions, anti-displacement connecting components, and load-bearing support components are arranged inside the central column assembly. There are two trapezoidal energy-absorbing partitions symmetrically distributed. The anti-displacement connecting components are installed between the trapezoidal energy-absorbing partitions and the central column assembly, improving the fracture resilience of the trapezoidal energy-absorbing partitions after impact. The load-bearing support components are located inside the trapezoidal energy-absorbing partitions, and all trapezoidal energy-absorbing partitions are fixedly connected to the load-bearing support components.

[0005] The guardrail center post assembly includes a crash barrier center post and a warning reflective strip. The warning reflective strip is fitted over the outside of the crash barrier center post, and the crash barrier center post is fixedly connected to the guardrail center post assembly.

[0006] The load pressure support assembly includes a cylindrical hollow support tube and an intermediate point support page. The intermediate point support page is fixedly connected to the inner side of the cylindrical hollow support tube, and the cylindrical hollow support tube is fixedly connected to the trapezoidal energy-absorbing partition.

[0007] The anti-displacement connection assembly includes an arc-shaped buffer pad and a gripping connection net. The arc-shaped buffer pad is fixedly connected to the inner side of the middle post of the crash barrier, and the arc-shaped buffer pad is located between the middle post of the crash barrier and the trapezoidal energy-absorbing partition. The gripping connection net is fixedly connected to the inner wall of the arc-shaped buffer pad and the middle post of the crash barrier.

[0008] The arc-shaped buffer pad and the trapezoidal energy-absorbing partition are filled with polyurethane foam, which is used for cushioning when the impact buffer surface makes hard contact.

[0009] The trapezoidal energy-absorbing partition and the cylindrical hollow support tube are provided with a deformation cavity, which is used to reserve the collapse space in the event of collision.

[0010] A waterproof filling layer is provided between the horizontal assembly bracket and the central column assembly of the guardrail. One end of the waterproof filling layer is fixedly connected to the central column of the guardrail, and the other end of the waterproof filling layer is fixedly connected to the horizontal assembly bracket.

[0011] The beneficial effects of this utility model are:

[0012] 1. By setting trapezoidal energy-absorbing partitions and load-bearing pressure support components for deformation buffering during collisions, the gap between the trapezoidal energy-absorbing partitions and the load-bearing pressure support components provides clearance space, ensuring that the trapezoidal energy-absorbing partitions retain a crumple zone after deformation. Simultaneously, as the trapezoidal energy-absorbing partitions deform upon impact, the trapezoidal surface of the partitions, which is in contact with the central post of the crash barrier, stretches the impact pressure to both sides. The improved connection between the trapezoidal energy-absorbing partitions and the central post of the crash barrier helps to disperse the force. Furthermore, as the pressure increases and the trapezoidal energy-absorbing partitions are fully deformed, the continued stress applied to the outer periphery of the hollow column support tube is further dispersed from the inner side of the central support page to the deformed trapezoidal energy-absorbing partitions. This allows the central post of the crash barrier to retain sufficient energy absorption while providing impact resistance.

[0013] 2. By setting up arc-shaped buffer pads and polyurethane foam as pre-buffering parts during collisions, even when pedestrians or electric vehicles experience small impacts, the arc-shaped buffer pads and polyurethane foam can still achieve the effect of collision protection and buffering. Furthermore, the arc-shaped buffer pads are connected to the trapezoidal energy-absorbing partitions by a grabbing connection net, which ensures that when the arc-shaped buffer pads break due to small impacts, the fragments will not detach due to the support of the grabbing connection net, thus preventing the arc-shaped buffer pads from flying directly and causing secondary injuries to the impacted personnel.

[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top view of the present invention.

[0017] Figure 3For the main view section view;

[0018] In the diagram: 1. Central column assembly of the guardrail; 11. Central column of the crash barrier; 12. Warning reflective strip; 2. Horizontal assembly bracket; 21. Waterproof filling layer; 3. Trapezoidal energy-absorbing partition; 31. Deformation cavity; 4. Anti-displacement connection assembly; 41. Arc-shaped buffer pad; 42. Grasp connection net; 43. Polyurethane foam; 5. Load pressure support assembly; 51. Columnar hollow support tube; 52. Midpoint support page. Detailed Implementation

[0019] Please see Figures 1-3 This utility model provides the following technical solution: a crash barrier, including a central column assembly 1, with horizontal mounting brackets 2 at both ends of the central column assembly 1. Trapezoidal energy-absorbing partitions 3, anti-displacement connecting components 4, and load pressure support components 5 are provided on the inner side of the central column assembly 1. There are two trapezoidal energy-absorbing partitions 3, which are symmetrically distributed. The anti-displacement connecting components 4 are installed between the trapezoidal energy-absorbing partitions 3 and the central column assembly 1. The anti-displacement connecting components 4 are used to improve the fracture connection of the trapezoidal energy-absorbing partitions 3 after impact. The load pressure support components 5 are provided on the inner side of the trapezoidal energy-absorbing partitions 3, and the trapezoidal energy-absorbing partitions 3 are all fixedly connected to the load pressure support components 5.

[0020] The guardrail center post assembly 1 includes a guardrail center post 11 and a warning reflective strip 12. The warning reflective strip 12 is sleeved on the outside of the guardrail center post 11, and the guardrail center post 11 is fixedly connected to the guardrail center post assembly 1.

[0021] In this embodiment, the horizontal mounting bracket 2 is installed on the middle post 11 of the crash barrier to support the horizontal mounting bracket 2, so that a complete guardrail structure is formed between the middle post 11 of the crash barrier and the horizontal mounting bracket 2. At the same time, the warning reflective strip 12 set on the surface of the middle post 11 of the crash barrier is used to provide a nighttime warning effect.

[0022] The load pressure support assembly 5 includes a cylindrical hollow support tube 51 and an intermediate point support page 52. The intermediate point support page 52 is fixedly connected to the inner side of the cylindrical hollow support tube 51, and the cylindrical hollow support tube 51 is fixedly connected to the trapezoidal energy-absorbing partition 3.

[0023] A deformation cavity 31 is reserved between the trapezoidal energy-absorbing partition 3 and the cylindrical hollow support tube 51. The deformation cavity 31 is used to reserve the collapse space during collision contact.

[0024] In this embodiment, since a deformation cavity 31 is provided between the trapezoidal energy-absorbing partition 3 and the cylindrical hollow support tube 51, when a collision occurs, the deformation cavity 31 provides clearance space for the trapezoidal energy-absorbing partition 3 and the cylindrical hollow support tube 51, so that the trapezoidal energy-absorbing partition 3 retains a collapse area after deformation. At the same time, when the trapezoidal energy-absorbing partition 3 is deformed by impact, as the impact pressure is applied, the trapezoidal surface of the trapezoidal energy-absorbing partition 3 in contact with the middle post 11 of the crash barrier stretches the impact pressure to both sides. The trapezoidal energy-absorbing partition 3 improves the connection with the middle post 11 of the crash barrier, thus playing a role in dispersing the force. At the same time, as the pressure is further applied, after the trapezoidal energy-absorbing partition 3 is completely deformed, the stress continues to be applied to the outer periphery of the cylindrical hollow support tube 51, and is then dispersed again from the inner side of the middle support page 52 to the deformed trapezoidal energy-absorbing partition 3. This allows the middle post 11 of the crash barrier to have impact resistance while still retaining sufficient energy absorption effect.

[0025] The anti-displacement connection component 4 includes an arc-shaped buffer pad 41 and a gripping connection net 42. The arc-shaped buffer pad 41 is fixedly connected to the inner side of the middle post 11 of the crash barrier, and the arc-shaped buffer pad 41 is located between the middle post 11 of the crash barrier and the trapezoidal energy-absorbing partition 3. The gripping connection net 42 is fixedly connected to the inner wall of the arc-shaped buffer pad 41 and the middle post 11 of the crash barrier.

[0026] In this embodiment, the arc-shaped buffer pad 41 and the trapezoidal energy-absorbing partition 3 are connected by a gripping connecting net 42. This allows the fragments of the arc-shaped buffer pad 41 to remain intact when broken by a small impact force, thanks to the support of the gripping connecting net 42. This prevents the arc-shaped buffer pad 41 from flying directly and causing secondary injury to the person being hit.

[0027] The space between the arc-shaped buffer pad 41 and the trapezoidal energy-absorbing partition 3 is filled with polyurethane foam 43, which is used for buffering when the impact buffer surface makes hard contact.

[0028] By setting the arc-shaped buffer pad 41 and polyurethane foam 43 as pre-buffering parts during collision, when a pedestrian or electric vehicle has a small impact force, the arc-shaped buffer pad 41 and polyurethane foam 43 can still achieve the effect of anti-collision buffering, avoiding large-area damage when directly hitting the middle post 11 of the crash barrier.

[0029] A water-proof filling layer 21 is provided between the horizontal assembly bracket 2 and the central column assembly 1 of the guardrail. One end of the water-proof filling layer 21 is fixedly connected to the central column 11 of the guardrail, and the other end of the water-proof filling layer 21 is fixedly connected to the horizontal assembly bracket 2.

[0030] In this embodiment, after the welding and installation of the middle post 11 of the crash barrier and the trapezoidal energy-absorbing partition 3 are completed, the welding surface between the middle post 11 of the crash barrier and the trapezoidal energy-absorbing partition 3 is covered by the waterproof filling layer 21 to prevent water vapor from directly contacting the welding surface and affecting the connection strength between the middle post 11 of the crash barrier and the transverse assembly bracket 2.

[0031] The working principle of this utility model is as follows: When an external collision occurs at position 11, the trapezoidal energy-absorbing partition 3 deforms through the deformation cavity 31 and retains a collapse area. At the same time, when the trapezoidal energy-absorbing partition 3 is deformed by the impact, as the impact pressure is applied, the trapezoidal surface of the trapezoidal energy-absorbing partition 3, which is in contact with the middle post 11 of the crash barrier, stretches the impact pressure to both sides. The trapezoidal energy-absorbing partition 3 improves the connection with the middle post 11 of the crash barrier, thus playing a role in dispersing the corresponding force. At the same time, as the pressure is further applied, after the trapezoidal energy-absorbing partition 3 is completely deformed, the stress continues to be applied to the outer periphery of the columnar hollow support tube 51. The stress is then dispersed again from the inner side of the middle support page 52 to the deformed trapezoidal energy-absorbing partition 3. This allows the middle post 11 of the crash barrier to have impact resistance while still retaining sufficient energy absorption effect, avoiding the impact of excessive deformation of the crash barrier on the interception effect when a collision occurs.

Claims

1. A crash barrier comprising a barrier body post assembly (1) characterised in that: The column assembly (1) is provided with a transverse assembly support (2) at both ends, and the inside of the column assembly (1) is provided with a trapezoidal energy-absorbing partition (3), a displacement prevention connecting assembly (4), and a load pressure support assembly (5), the number of the trapezoidal energy-absorbing partitions (3) is two, the two trapezoidal energy-absorbing partitions (3) are symmetrically distributed, the displacement prevention connecting assembly (4) is installed between the trapezoidal energy-absorbing partition (3) and the column assembly (1), the displacement prevention connecting assembly (4) is used to improve the fragmentation connectivity of the trapezoidal energy-absorbing partition (3) after being hit, and the load pressure support assembly (5) is arranged inside the trapezoidal energy-absorbing partition (3), and the trapezoidal energy-absorbing partition (3) is fixedly connected with the load pressure support assembly (5).

2. A crash barrier according to claim 1, wherein: The column assembly (1) includes a crash barrier middle column (11) and a warning reflective strip (12), the warning reflective strip (12) is sleeved on the outside of the crash barrier middle column (11), and the crash barrier middle column (11) is fixedly connected with the column assembly (1).

3. A crash barrier according to claim 1, wherein: The load pressure support assembly (5) includes a cylindrical hollow support pipe (51) and an intermediate point support page (52), the intermediate point support page (52) is fixedly connected to the inside of the cylindrical hollow support pipe (51), and the cylindrical hollow support pipe (51) is fixedly connected with the trapezoidal energy-absorbing partition (3).

4. A crash barrier according to claim 2, wherein: The displacement prevention connecting assembly (4) includes an arc-shaped buffer gasket (41) and a grabbing connecting net (42), the arc-shaped buffer gasket (41) is fixedly connected to the inside of the crash barrier middle column (11), and the arc-shaped buffer gasket (41) is located between the crash barrier middle column (11) and the trapezoidal energy-absorbing partition (3), and the grabbing connecting net (42) is fixedly connected to the arc-shaped buffer gasket (41) and the inner wall of the crash barrier middle column (11).

5. A crash barrier according to claim 4, wherein: The arc-shaped buffer gasket (41) and the trapezoidal energy-absorbing partition (3) are filled with polyurethane foam (43), and the polyurethane foam (43) is used for buffering when the impact buffering surface is in hard contact.

6. A crash barrier according to claim 3 wherein: The trapezoidal energy-absorbing partition (3) and the cylindrical hollow support pipe (51) are provided with a deformation cavity (31), and the deformation cavity (31) is used to reserve a collapse space when colliding.

7. A crash barrier according to claim 2, wherein: The transverse assembly support (2) and the column assembly (1) are provided with a waterproof filling layer (21), one end of the waterproof filling layer (21) is fixedly connected with the crash barrier middle column (11), and the other end of the waterproof filling layer (21) is fixedly connected with the transverse assembly support (2).

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