Tunnel anti-collision buffer guardrail structure

Abstract

This utility model discloses a tunnel anti-collision buffer guardrail structure, belonging to the technical field of highway protection equipment. It aims to solve the problem that existing tunnel guardrail structures are simple and offer limited buffering effects upon impact, potentially leading to vehicles breaking through the guardrail and causing more serious accidents. The key technical features include a column with an internal cavity, a cover plate installed on the outer side of the column, a pre-drilled notch in the cover plate, a support block and a mounting plate fixedly connected to the outer side of the column, expansion bolts inserted into the mounting plate, ground nails fixedly connected to the bottom of the mounting plate, and a sand bucket installed on the outer side of the column with a feeding port on its outer side. This achieves a convenient usability.

Description

Technical Field

[0001] This utility model relates to the technical field of highway protection equipment, and in particular to the structure of tunnel anti-collision buffer guardrail. Background Technology

[0002] Highway safety barriers are core facilities for ensuring driving safety and reducing accident risks. Their design must combine mechanical properties, materials science, traffic flow characteristics, and intelligent technology. Installing guardrails in highway tunnels is an important measure to ensure driving safety, reduce accident risks, and maintain traffic order. Guardrails separate opposing lanes or isolate tunnel sidewalls to prevent vehicles from crossing the boundary and causing head-on collisions or impacts to the tunnel structure. Guardrails can limit the movement range of accident vehicles, reduce lane occupancy time, and speed up accident clearance and traffic restoration.

[0003] The existing technical solutions mentioned above have the following drawbacks: the existing tunnel guardrails have a simple structure and provide limited cushioning effect upon impact. In severe cases, vehicles may break through the guardrails, causing more serious accidents. Utility Model Content

[0004] The purpose of this utility model is to provide a tunnel anti-collision buffer guardrail structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The tunnel anti-collision buffer guardrail structure includes a post with an internal cavity, a cover plate installed on the outside of the post with a pre-reserved slot inside the cover plate, a support block and a mounting plate fixedly connected to the outside of the post, expansion bolts inserted into the inside of the mounting plate, ground nails fixedly connected to the bottom of the mounting plate, and a sand bucket installed on the outside of the post with a pre-reserved feeding port on the outside of the sand bucket.

[0007] By adopting the above technical solution, a cavity is added inside the column and ground nails are added to the bottom. The ground nails can ensure the stability of the bottom of the structure after installation and improve the impact resistance of the guardrail. At the same time, expansion bolts are used to reinforce and lock the bottom to the ground. The sand bucket can be installed directly, which is convenient for operation and can also provide a certain buffering effect.

[0008] Furthermore, a railing is installed on the outside of the column, and a through hole is opened inside the railing. An energy-absorbing box is arranged between the railings, and a screw is inserted into the through hole. A nut is threaded onto the outside of the screw.

[0009] By adopting the above technical solution, adding railings to the outside of the posts can absorb kinetic energy through the railings and the energy-absorbing boxes between them, thereby improving the buffering effect and impact resistance of the guardrails and protecting the vehicles and the drivers inside.

[0010] Furthermore, the cover plate is engaged with the column via a snap-fit ​​mechanism, the cavity is filled with concrete, and both the upper and lower ends of the sand bucket are in contact with the outer side of the railing.

[0011] By adopting the above technical solution, the structural strength of the column itself is improved by adding a cover plate to the outside of the column and filling the space inside the column with concrete.

[0012] Furthermore, both ends of the outer side of the screw extend through the through hole and the interior of the energy-absorbing box to the outer side of the railing, and the outer side of the energy-absorbing box fits into the inner side of the railing.

[0013] By adopting the above technical solution, the guardrail structure can be spliced ​​and installed by installing the energy-absorbing box in the middle of the railing, passing the screw through it, and then locking it with a nut.

[0014] Furthermore, an end cap matching the feeding port is installed on the outside of the feeding port, the inside of the sand bucket is hollow, the sand bucket is sleeved on the outside of the column, and is compatible with the column.

[0015] By adopting the above technical solution, it is convenient to fill the sand bucket with sand, and it can be assembled and spliced ​​for easy use.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] The system employs posts, sand buckets, railings, ground stakes, and energy-absorbing boxes. Sand buckets are added in the middle of the posts, and combined railing structures are added at the top and bottom of the sand buckets. The railings can be assembled using energy-absorbing boxes and then locked in place with screws and nuts. The addition of energy-absorbing boxes in the middle of the railings improves the buffering effect. With the sand buckets and the sturdy and stable structure of the posts themselves, the overall structure of the guardrail is more reliable and easy to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of this utility model. Figure 3 .

[0022] In the diagram, 1. Column; 2. Cavity; 3. Cover plate; 4. Bayonet; 5. Support block; 6. Mounting plate; 7. Expansion bolt; 8. Ground nail; 9. Sand bucket; 10. Feed port; 11. Railing; 12. Through hole; 13. Energy absorption box; 14. Screw; 15. Nut. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Reference Figure 1-4 The tunnel anti-collision buffer guardrail structure includes a post 1, with a cavity 2 inside the post 1, a cover plate 3 installed on the outside of the post 1, a pre-drilled notch 4 inside the cover plate 3, a support block 5 and a mounting plate 6 fixedly connected to the outside of the post 1, expansion bolts 7 inserted into the inside of the mounting plate 6, and ground nails 8 fixedly connected to the bottom of the mounting plate 6. A sand bucket 9 is installed on the outside of the post 1, with a feeding port 10 pre-drilled on the outside of the sand bucket 9, and railings 11 installed on the outside of the post 1. Through holes 12 are opened inside the railings 11, and energy-absorbing boxes 13 are arranged between the railings 11. Screws 14 are inserted into the through holes 12. Nut 15 is threaded on the outside. A cavity 2 is added inside the post 1, and ground nails 8 are added to the bottom. Ground nails 8 can ensure the stability of the bottom of the structure after installation and improve the impact resistance of the guardrail. At the same time, expansion bolts 7 are used to reinforce and lock the bottom to the ground. Sand buckets 9 can be installed directly for easy operation and can also provide a certain buffering effect. A railing 11 is added to the outside of the post 1. The railing 11 and the energy-absorbing box 13 between the railing 11 can absorb kinetic energy and improve the buffering effect and impact resistance of the guardrail. It also protects the vehicle and the driver inside the vehicle.

[0025] like Figure 1-4 As shown, the cover plate 3 is engaged with the column 1 via the snap-fit ​​4. The cavity 2 is filled with concrete. The upper and lower ends of the sand bucket 9 are in contact with the outer side of the railing 11. The two ends of the outer side of the screw 14 extend through the through hole 12 and the interior of the energy absorption box 13 to the outer side of the railing 11. The outer side of the energy absorption box 13 fits into the inner side of the railing 11. An end cap matching the feeding port 10 is installed on the outer side of the feeding port 10. The interior of the sand bucket 9 is hollow. The sand bucket 9 is fitted onto the outer side of the column 1 and is compatible with the column 1.

[0026] The implementation principle of this embodiment is as follows: First, the ground nails 8 at the bottom of the column 1 are inserted into the ground and then locked and fixed with expansion bolts 7. Then, concrete is poured into the inside of the column 1 to improve the overall structural strength of the column 1. Then, a set of railings 11 is installed on the support block 5. The railings 11 and the energy-absorbing box 13 are assembled together with screws 14 and then locked and fixed with nuts 15. Then, the sand bucket 9 is fitted onto the column 1. Then, another set of railings 11 is assembled in the same way. This is the complete guardrail structure, which can greatly improve the buffering effect of the guardrail after being hit, protect vehicles, and prevent vehicles from running out of the guardrail and causing greater traffic accidents.

[0027] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tunnel anti-collision buffer guardrail structure, including posts (1), characterized in that: The column (1) has a cavity (2) inside. A cover plate (3) is installed on the outside of the column (1). A slot (4) is reserved inside the cover plate (3). A support block (5) and a mounting plate (6) are fixedly connected to the outside of the column (1). An expansion bolt (7) is inserted into the inside of the mounting plate (6). A ground nail (8) is fixedly connected to the bottom of the mounting plate (6). A sand bucket (9) is installed on the outside of the column (1). A feeding port (10) is reserved on the outside of the sand bucket (9).

2. The tunnel anti-collision buffer guardrail structure according to claim 1, characterized in that: A railing (11) is installed on the outside of the column (1). A through hole (12) is opened inside the railing (11). An energy-absorbing box (13) is arranged between the railings (11). A screw (14) is inserted into the through hole (12). A nut (15) is threaded onto the outside of the screw (14).

3. The tunnel anti-collision buffer guardrail structure according to claim 2, characterized in that: The cover plate (3) is engaged with the column (1) through the snap-fit ​​(4), the cavity (2) is filled with concrete, and the upper and lower ends of the sand bucket (9) are in contact with the outer side of the railing (11).

4. The tunnel anti-collision buffer guardrail structure according to claim 2, characterized in that: Both ends of the outer side of the screw (14) extend through the through hole (12) and the interior of the energy-absorbing box (13) to the outer side of the railing (11), and the outer side of the energy-absorbing box (13) is in contact with the inner side of the railing (11).

5. The tunnel anti-collision buffer guardrail structure according to claim 1, characterized in that: The feed port (10) is fitted with an end cap that matches the feed port (10). The sand bucket (9) is hollow inside. The sand bucket (9) is fitted onto the outside of the column (1) and is compatible with the column (1).

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