Road medial strip guardrail for highway engineering

The design of the curved double-headed screw and bolt fixing components solves the problems of splicing strength and anti-theft and anti-loosening of the central divider guardrail, and achieves stable installation and efficient protection of the guardrail.

CN223983972UActive Publication Date: 2026-03-10SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing corrugated beams of the central divider guardrails have insufficient splicing strength, making them prone to loosening or breakage. They also have poor anti-theft and anti-loosening performance, failing to effectively guarantee traffic safety.

Method used

The corrugated beams are spliced ​​using curved double-headed screws and bolt fixing components, combined with an anti-theft clamping nut design to enhance splicing strength and anti-theft and anti-loosening performance.

Benefits of technology

It improves the ease of installation and structural stability of the guardrail, reduces the risk of loosening and breakage, enhances anti-theft performance, and provides more reliable security.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a road medial strip guardrail for highway engineering. The whole bracket is fixedly connected to the stand column through a bolt fixing assembly. The corrugated beam is divided into a corrugated beam fixing section and a corrugated beam splicing section, the edges of the corrugated beam fixing section and the corrugated beam splicing section are overlapped, one end of a bent double-thread screw is inserted into a connecting hole of the corrugated beam fixing section and the corrugated beam splicing section after the corrugated beam fixing section and the corrugated beam splicing section are overlapped, and the end is fixed through matching of a nut. The other end of the bent double-thread screw is inserted into a connecting hole B in the other side surface of the corrugated beam splicing section and is fixed by matching with a nut; the two ends of the bent double-thread screw are provided with threads, the purpose of splicing the wave-shaped beam fixing section and the wave-shaped beam splicing section can be achieved through the bent double-thread screw, the strength and stability of the wave-shaped beam splicing section can be enhanced, and meanwhile the length of the bracket is determined according to the actual situation. The number of the wave-shaped beam fixing sections on the bracket can be increased according to requirements, and meanwhile the wave-shaped beam splicing sections are spliced or assembled above or below the wave-shaped beam fixing sections.
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Description

Technical Field

[0001] This utility model relates to the field of highway engineering implementation, specifically to a guardrail for the median strip of a highway. Background Technology

[0002] In highway construction, median barriers are a crucial facility for ensuring traffic safety. However, existing median barriers have revealed several problems in practical application. The existing corrugated beam splicing method has significant defects. Sometimes, the corrugated beams and posts are connected by welding, resulting in insufficient splicing strength between the beams themselves. Under the influence of external forces such as vehicle impacts, the corrugated beams or their joints are prone to loosening or even breaking, failing to effectively fulfill the protective function of the barrier. Furthermore, in terms of the barrier's splicing structure, it is inconvenient to splice or assemble corrugated beams at the upper and lower positions, making it difficult to extend the protective surface at the upper and lower positions as needed. In addition, the anti-theft and anti-loosening performance of the barriers urgently needs improvement. Bolts on many highways are frequently stolen or loosened due to vehicle vibrations. The traditional bolt fixing method lacks effective anti-theft and anti-loosening measures, posing significant safety hazards to the barriers during use. Utility Model Content

[0003] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a new type of guardrail for the median strip of highway engineering. It is a new type of guardrail structure that is easy to install, firmly spliced, and has good anti-theft and anti-loosening performance. Moreover, corrugated beams can be added at both the top and bottom to extend the protection area.

[0004] This utility model is implemented as follows: a guardrail for the central median strip of a highway engineering road is constructed, characterized in that it includes a post, a bracket, and a corrugated beam; the bracket is fixedly connected to the post by a bolt fixing assembly.

[0005] The corrugated beam is divided into two types: a fixed section and a splicing section. Both the fixed section and the splicing section are arc-shaped. The fixed section has a connecting hole A in the middle and on both sides, and the splicing section has a connecting hole B on both sides.

[0006] The connecting hole A in the middle of the corrugated beam fixed section is fixedly connected to the bracket via a bolt assembly. A set of corrugated beam splicing sections are fixedly connected to the upper and lower parts of the corrugated beam fixed section via bent double-ended screws. That is, the edges of the corrugated beam fixed section and the corrugated beam splicing section overlap. After overlapping, one end of the bent double-ended screw is inserted into the connecting hole and fixed with a nut. The other end of the bent double-ended screw is inserted into the connecting hole B on the other side of the corrugated beam splicing section and fixed with a nut. Both ends of the bent double-ended screw are threaded. The use of bent double-ended screws not only achieves the purpose of splicing the corrugated beam fixed section and the corrugated beam splicing section, but also enhances the strength and stability of the corrugated beam splicing section itself. Furthermore, the length of the bracket can be determined according to actual conditions, thus allowing for the increase of the number of corrugated beam fixed sections on the bracket as needed. Corrugated beam splicing sections can also be spliced ​​or assembled above or below the corrugated beam fixed sections to increase the area and size of the corrugated beam.

[0007] According to the highway engineering median guardrail of this utility model, the bracket has a bolt connection hole A in the middle and bolt connection holes B on both sides. The bolt connection hole A is used to fix it to the column; the bolt connection hole B is used to connect and fix it to the corrugated beam fixed section.

[0008] According to the present invention, the median barrier of the highway engineering road is characterized in that: the bolt fixing assembly includes a long bolt, an anti-theft clamping nut A and an inner nut A; the anti-theft clamping nut A is sleeved on the end of the long bolt, the inner nut A is tightened on the end of the long bolt, and the anti-theft clamping nut A can completely cover the inner nut A, which can play the role of preventing theft and loosening.

[0009] The guardrail for the median strip of a highway engineering project according to this utility model is characterized in that: both ends of the curved double-headed screw are threaded.

[0010] According to the highway engineering median guardrail of this utility model, the bolt assembly consists of a fixing bolt, an anti-theft clamping nut B, an inner nut B, and a washer. The anti-theft clamping nut B can completely cover the inner nut B, thus playing a role in preventing theft and loosening.

[0011] The highway engineering median barrier of this application has many significant benefits, which can effectively improve the performance, ease of installation and safety of the barrier, specifically:

[0012] Installation and Structural Flexibility: The structural design of this guardrail makes installation extremely convenient. The brackets are connected to the posts via bolted fasteners, simplifying operation and increasing construction efficiency. Furthermore, the length of the brackets can be flexibly adjusted according to actual needs, correspondingly increasing the number of corrugated beam fixing sections. The corrugated beam fixing sections and corrugated beam splicing sections are joined using curved double-ended threaded rods. This splicing method is not only convenient and quick but also allows for the splicing or assembly of corrugated beam splicing sections above or below the corrugated beam fixing sections, thereby increasing the area and size of the corrugated beam to adapt to the different road separation requirements.

[0013] Splicing strength and stability: The use of curved double-headed screws can not only achieve effective splicing of the fixed section and splicing section of the corrugated beam, but also significantly enhance the strength and stability of the splicing section of the corrugated beam itself, making the overall structure of the corrugated beam more stable, effectively reducing the risk of loosening or breakage at the splicing point, improving the protective performance of the guardrail, and ensuring driving safety.

[0014] Anti-theft and anti-loosening performance: This guardrail employs multiple anti-theft and anti-loosening designs. The anti-theft clamping nut A in the bolt fixing assembly completely covers the inner nut A, preventing others from easily disassembling it, thus serving as an anti-theft measure. Simultaneously, this structure effectively prevents the nut from loosening under vibrations generated by vehicle movement. The bolt assembly also utilizes an anti-theft clamping nut B to cover the inner nut B, further enhancing the connection's strength and security. This not only reduces damage and repair costs caused by theft or loosening of the guardrail but also improves its long-term stability.

[0015] In summary, the median barrier in this highway project has significant advantages in terms of installation flexibility, structural strength, and anti-theft and anti-loosening capabilities, providing more reliable safety for highway traffic. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall implementation elevation of this application;

[0017] Figure 2 This is a schematic diagram of the overall implementation of this application;

[0018] Figure 3 This is a schematic diagram of the splicing of the corrugated beam in this application;

[0019] Figure 4 This is a schematic diagram of the bracket in this application;

[0020] Figure 5 This is a schematic diagram of the bolt fixing assembly in this application;

[0021] Figure 6 This is a schematic diagram of the bolt assembly in this application. Detailed Implementation

[0022] The following will be combined with the appendix Figures 1-6 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] This utility model provides a guardrail for the median strip of a highway engineering project, such as... Figures 1-6 As shown, it can be implemented as follows: including a column 1, a bracket 2, and a corrugated beam 3; the bracket 2 is fixedly connected to the column 1 by a bolt fixing assembly; the corrugated beam 3 is divided into two types: a corrugated beam fixed section 3-1 and a corrugated beam splicing section 3-2, and both the corrugated beam fixed section 3-1 and the corrugated beam splicing section 3-2 are arc-shaped. The corrugated beam fixed section 3-1 has connecting holes A3-4 in the middle and on both sides, and the corrugated beam splicing section 3-2 has connecting holes B3-5 on both sides; the connecting hole A3-4 in the middle of the corrugated beam fixed section 3-1 is fixedly connected to the bracket 2 by a bolt assembly 7, and a set of corrugated beam splicing sections 3-2 are fixedly connected to the upper and lower parts of the corrugated beam fixed section 3-1 by a bent double-headed screw 4, that is, the corrugated beam fixed section 3-1 and the corrugated beam splicing section 3-2 are fixedly connected to each other. The edges of segment 3-2 overlap, and after overlapping, one end of the curved double-ended screw 4 is inserted into the connecting hole. This end is fixed by the cooperation of nut 5, and the other end of the curved double-ended screw 4 is inserted into the connecting hole B3-5 on the other side of the corrugated beam splicing segment 3-2 and fixed by the cooperation of nut 5. The curved double-ended screw 4 has threads at both ends. By setting the curved double-ended screw 4, not only can the purpose of splicing corrugated beam fixing segment 3-1 and corrugated beam splicing segment 3-2 be achieved, but the strength and stability of corrugated beam splicing segment 3-2 itself can also be enhanced. At the same time, the length of bracket 2 is determined according to the actual situation. Therefore, the number of corrugated beam fixing segments 3-1 can be increased on bracket 2 as needed. Corrugated beam splicing segments 3-2 can be spliced ​​or assembled above or below corrugated beam fixing segments 3-1 to increase the area and surface area of ​​corrugated beam.

[0024] In the implementation of the median barrier of the highway engineering described in this application; the bracket 2 has a bolt connection hole A2-1 in the middle and bolt connection holes B2-2 on both sides. The bolt connection hole A2-1 is used to fix it on the column 1; the bolt connection hole B2-2 is used to connect and fix it to the corrugated beam fixing section 3-1.

[0025] In the implementation of the median barrier for highway engineering described in this application, the bolt fixing assembly includes a long bolt 6-1, an anti-theft clamping nut A6-2, and an inner nut A6-3 (using an anti-theft loosening nut). The anti-theft clamping nut A6-2 is sleeved on the end of the long bolt 6-1, and the inner nut A6-3 is tightened on the end of the long bolt 6-1. The anti-theft clamping nut A6-2 can completely cover the inner nut A6-3, thus playing a role in preventing theft and loosening.

[0026] In the implementation of the median barrier of the highway engineering project described in this application, the curved double-ended screw 4 has threads at both ends.

[0027] In the implementation of the median barrier of the highway engineering described in this application, the bolt assembly 7 consists of a fixing bolt 7-1, an anti-theft tightening nut B7-2, an inner nut B7-3 (using an anti-theft loosening nut), and a washer 7-4. The anti-theft tightening nut B7-2 can completely cover the inner nut B7-3, thus playing a role in preventing theft and loosening.

[0028] The implementation process of this application will be described below;

[0029] (1) Column Installation: First, based on the highway engineering design requirements, accurately determine the installation position of column 1 in the central median strip of the road. Use a professional pile driver or manual excavation to vertically bury column 1 into the ground to the design depth, ensuring that column 1 is stable and upright, and that the spacing between each column 1 meets the engineering standards. During the burying of column 1, it is necessary to strictly control the verticality and horizontal position to avoid tilting or positional deviation, laying a good foundation for the subsequent component installation.

[0030] (2) Bracket Installation: Install bracket 2 on column 1. Locate bolt connection hole A2-1 in the middle of bracket 2 and connect it using bolt fixing assembly. Bolt fixing assembly includes long bolt 6-1, anti-theft clamping nut A6-2, and inner nut A6-3. Pass long bolt 6-1 through bolt connection hole A2-1 and out from the other side of column 1. Screw inner nut A6-3 into the end of long bolt 6-1 for initial tightening. Then, slip anti-theft clamping nut A6-2 onto the end of long bolt 6-1 so that it completely covers inner nut A6-3. Further tighten anti-theft clamping nut A6-2 to achieve the effect of anti-theft and anti-loosening. During installation, ensure that bracket 2 is installed firmly and horizontally, and that the bolt connection holes B2-2 on both sides are oriented accurately so as to facilitate subsequent connection with corrugated beam fixing section 3-1.

[0031] (3) Installation of the corrugated beam fixing section: Take out the corrugated beam fixing section 3-1 and locate the connecting holes A3-4 on both sides and in the middle. Align the connecting hole A3-4 in the middle of the corrugated beam fixing section 3-1 with the bolt connecting hole B2-2 on the side of the bracket 2, and fix it using the bolt assembly 7. The bolt assembly 7 consists of a fixing bolt 7-1, an anti-theft clamping nut B7-2, an inner nut B7-3, and a washer 7-4. First, pass the fixing bolt 7-1 through the connecting hole A3-4 and the bolt connecting hole B2-2, then put on the washer 7-4 in sequence, and screw the inner nut B7-3 into the end of the fixing bolt 7-1 for initial tightening. Then, put the anti-theft clamping nut B7-2 on the fixing bolt 7-1 so that it covers the inner nut B7-3, and finally tighten the anti-theft clamping nut B7-2 to ensure that the corrugated beam fixing section 3-1 is tightly connected to the bracket 2. If, based on actual needs, the number of corrugated beam fixing sections 3-1 to be increased on bracket 2 is to be installed on bracket 2 in sequence using the same method.

[0032] (4) Installation of corrugated beam splicing sections: Splice corrugated beam splicing sections 3-2 above and below the already installed corrugated beam fixing section 3-1. Select a bent double-ended screw 4, insert one end of it into the connecting hole A3-4 on the side of the corrugated beam fixing section 3-1, and screw on the nut 5 at that end. Next, align the connecting hole B3-5 of the corrugated beam splicing section 3-2 with the end of the bent double-ended screw 4 that is protruding, so that the end of the bent double-ended screw 4 is inserted into the connecting hole B3-5, and then screw on the nut 5 and tighten it to initially fix the corrugated beam splicing section 3-2. Then, insert the other end of the bent double-ended screw 4 into the connecting hole B3-5 on the other side of the corrugated beam splicing section 3-2, and tighten it with the nut 5 in the same way. In this way, complete the splicing of all corrugated beam splicing sections 3-2 and corrugated beam fixing sections 3-1 in sequence to ensure that the splicing is firm, the corrugated beam is tightly connected as a whole, and a continuous and effective protective structure is formed. Throughout the installation process, the installation quality of each component should be checked at any time, and any loose or inaccurate parts should be adjusted in a timely manner to ensure that the final installed median barrier of the highway project meets the design requirements and safety standards.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A highway engineering median barrier, characterised in that ; Including stand (1), bracket (2) and wave beam (3), the bracket (2) is fixedly connected on the stand (1) as a whole through a bolt fixing assembly; The wave beam (3) is divided into wave beam fixed section (3-1) and wave beam splicing section (3-2), and the wave beam fixed section (3-1) and the wave beam splicing section (3-2) are respectively in the shape of an arc, the middle and the two side surfaces of the wave beam fixed section (3-1) are provided with connecting holes A (3-4), and the two side surfaces of the wave beam splicing section (3-2) are provided with connecting holes B (3-5); The connecting holes A (3-4) in the middle of the wave beam fixed section (3-1) are fixedly connected with the bracket (2) through a bolt assembly (7), a group of wave beam splicing sections (3-2) are fixedly connected above and below the wave beam fixed section (3-1) through bent double-end screws (4), namely, the edges of the wave beam fixed section (3-1) and the wave beam splicing section (3-2) are overlapped, one end of the bent double-end screw (4) is inserted into the connecting holes after overlapping, the end is fixed through the cooperation of a nut (5), and the other end of the bent double-end screw (4) is inserted into the connecting holes B (3-5) in the other side surface of the wave beam splicing section (3-2) and is fixed through the cooperation of the nut (5).

2. The highway engineering median barrier according to claim 1, wherein; The middle of the bracket (2) is provided with bolt connecting holes A (2-1), the two side surfaces are provided with bolt connecting holes B (2-2), the bolt connecting holes A (2-1) are used for being fixed on the stand (1), and the bolt connecting holes B (2-2) are used for being fixedly connected with the wave beam fixed section (3-1).

3. The highway engineering median barrier according to claim 1, wherein; The bolt fixing assembly comprises a long bolt (6-1), a theft-proof compression nut A (6-2) and an inner nut A (6-3), the theft-proof compression nut A (6-2) is sleeved on the end of the long bolt (6-1), the inner nut A (6-3) is screwed on the end of the long bolt (6-1), and the theft-proof compression nut A (6-2) can shield the inner nut A (6-3) as a whole.

4. The highway engineering median barrier according to claim 1, wherein; The bent double-end screw (4) is provided with threads at the two ends.

5. The highway engineering median barrier of claim 1, wherein; The bolt assembly (7) comprises a fixing bolt (7-1), a theft-proof compression nut B (7-2), an inner nut B (7-3) and a gasket (7-4), and the theft-proof compression nut B (7-2) can shield the inner nut B (7-3) as a whole.