Improved urban traffic road guardrail
The flexible connection system, consisting of elastic rings, connecting bags, and clamps, solves the problem of easy detachment of guardrail connecting parts, thereby improving stability and safety during movement and traffic accidents.
Patent Information
- Application Number
- CN202522597763.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-12-08
AI Technical Summary
Existing urban traffic guardrails are prone to detachment of connecting parts during movement or traffic accidents, posing a safety hazard, and may also cause secondary injuries when they are impacted.
A flexible connection system consisting of elastic rings, connecting bags, and clamps replaces the traditional rigid steel pipe connection. Combined with long strips of cement non-woven bags and steel wire rope fillers, it forms a stable connection component with buffering capacity.
It effectively prevents connecting parts from slipping and splashing, improving the safety and stability of the guardrail and reducing the risk of secondary injury.
Smart Images

Figure CN224678593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urban traffic technology, and more specifically, to an improved urban traffic road guardrail. Background Technology
[0002] In urban roads and residential roads, guardrails are used as key traffic separation facilities to block oncoming traffic and prevent vehicles from accidentally entering the opposite lane, thereby maintaining traffic order and driving safety.
[0003] The widely used guardrail structure currently consists of multiple posts, each with multiple holes on its surface. Adjacent posts are connected by inserting two steel pipes into these holes. While this structure offers advantages such as quick installation and low cost, it has revealed serious flaws in actual operation.
[0004] When guardrails need to be moved for road construction or maintenance, the steel pipes are prone to slipping out of the post holes, causing them to fall suddenly and pose a direct risk of injury to on-site workers or pedestrians. More significantly, in traffic accidents, when a vehicle collides with the guardrail at high speed, the steel pipes are often instantly knocked off the posts. The scattered pipes not only lose their protective function but may also cause additional impact injuries to occupants of the accident vehicle or nearby people due to inertia, creating a secondary accident hazard. These problems have persisted for a long time, severely weakening the safety function of guardrails and posing a continuous threat to public transportation safety.
[0005] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content
[0006] The purpose of this utility model is to solve the problems mentioned in the background art above, and then to propose an improved urban traffic road guardrail.
[0007] The technical solution adopted by this utility model to solve its technical problem is: An improved urban traffic road guardrail includes several posts, with connecting components installed between adjacent posts. Each connecting component includes an elastic ring, a connecting bag, and a clamp. The elastic ring is sleeved on the post, and the connecting bag is connected to the elastic ring. A clamp is formed at the other end of the connecting bag, and the clamp is fixedly connected to the adjacent elastic ring.
[0008] Furthermore, the support column includes a column body, on which a plurality of annular grooves are provided from top to bottom, and the elastic ring is installed in the annular grooves.
[0009] Furthermore, a support base is formed at the bottom of the column, and the support base is fixed to the ground by expansion bolts.
[0010] Furthermore, the connecting bag is filled with a long strip of cement non-woven fabric bag.
[0011] Furthermore, the long strip of non-woven cement bag is filled with several steel wire ropes and cement.
[0012] Furthermore, an insertion interface is formed at the junction of the elastic ring and the connecting bag, and the insertion interface can accommodate the insertion of a long strip of cement non-woven bag.
[0013] Furthermore, the right end of the clamp is bent to the bottom of the elastic ring, and the left end of the clamp is bent to overlap with the right end of the clamp, so that the left end is inserted into the limiting slot in the annular groove.
[0014] Furthermore, both the left and right ends of the clamp are provided with positioning holes, and the screw is inserted into the elastic band after passing through the positioning holes at the left and right ends of the clamp in sequence.
[0015] Furthermore, a spring washer is provided between the screw and the left end of the clamp.
[0016] Furthermore, the overlapping area between the left and right ends of the clamp is welded.
[0017] Furthermore, the left end of the clamp is bent and riveted together with the right end of the clamp by rivets.
[0018] Compared with the prior art, the beneficial effects of this utility model are: This utility model replaces the traditional steel pipe with a connecting component consisting of an elastic ring, a connecting bag and a clamp, making the connection between adjacent supports more stable and having a buffering capacity. It effectively prevents the components from slipping and splashing when moving or impacting, and has the advantages of improving safety and stability. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 for Figure 1 A magnified view of a section at point B in the middle; In the diagram: 1. Support column, 11. Support base, 12. Expansion bolt, 13. Column, 131. Annular groove, 2. Connecting component, 21. Connecting bag, 22. Elastic ring, 221. Insertion interface, 23. Clamp, 231. Right end of clamp, 232. Left end of clamp, 233. Screw, 234. Limiting slot, 3. Long strip cement non-woven bag. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] An improved urban traffic road guardrail includes several posts 1, with connecting components 2 installed between adjacent posts. Each connecting component includes an elastic ring 22, a connecting bag 21, and a clamp 23. The elastic ring is sleeved on the post, and the connecting bag is connected to the elastic ring. A clamp is formed at the other end of the connecting bag, and the clamp is fixedly connected to the adjacent elastic ring.
[0022] The elastic ring can be understood as a closed structure with elasticity, capable of adapting to the surface shape of the support through its deformation and providing a stable connection. In practical applications, the elastic ring can be a closed ring body injection molded from flexible polymer materials. Its main purpose is to achieve a flexible fit to the support, thereby absorbing impact energy through deformation when subjected to external forces. Furthermore, the connecting bag, as an intermediate component connecting the elastic ring and the clamp, can be a bag-shaped structure made of flexible fabric materials, such as nylon woven bags or polyester fiber bags, or a tubular structure made of plastic materials with a certain degree of flexibility. Its main function is to transmit tensile force and provide a cushioning effect. Specifically, the clamp is a component used to fix the connecting bag to the adjacent elastic ring. It can be achieved through a metal stamping clamp structure or a fastener structure injection molded from rigid engineering plastics. Its main function is to ensure the firmness of the connection point.
[0023] The innovation of this application lies in constructing a flexible connection system consisting of an elastic ring, a connecting bag, and clamps, which replaces the traditional rigid steel pipe connection method. This effectively solves the problem of easy detachment of connecting parts during guardrail movement or traffic accidents. Specifically, the flexible sleeve design of the elastic ring avoids the risk of instantaneous detachment caused by rigid fixation, the buffering characteristics of the connecting bag reduce the direct transmission of impact force, and the fixing method of the clamps ensures the continuity and stability of the connection point, thereby significantly reducing the possibility of component detachment and preventing secondary injuries.
[0024] In at least one embodiment, the support column includes a column body 13, on which a plurality of annular grooves 131 are provided from top to bottom, and the elastic ring is installed in the annular grooves.
[0025] In practical applications, the post refers to the main supporting component of the guardrail. It can be made of metal in a cylindrical or square shape to provide a stable foundation. The annular groove refers to a ring-shaped groove structure along the outer surface of the post. This can be achieved by machining evenly distributed grooves on the post surface or by welding the annular component to fix it. Its purpose is to provide a precise positioning base for the elastic ring and restrict its axial and radial movement.
[0026] Furthermore, a support base 11 is formed at the bottom of the column, and the support base is fixed to the ground by expansion bolts 12.
[0027] In practical applications, a support base refers to an extended structure set at the bottom of a column. It can be made of metal plates, concrete bases, or other load-bearing materials. Its purpose is to increase the contact area between the column and the ground. An expansion bolt is a fastening connector that achieves a tightening effect through mechanical expansion. It can achieve a tight engagement with the ground through the cooperation of the screw and the sleeve. Its purpose is to enhance the pull-out resistance and shear resistance between the column and the ground.
[0028] Furthermore, the connecting bag is filled with a long strip of cement non-woven fabric bag 3.
[0029] Specifically, the long, strip-shaped cement nonwoven bag refers to a filler with high-density, rigid core support, which can be achieved using a combination of cement and steel wire rope. In practical applications, the flexible wrapping properties of the nonwoven fabric allow the filler to undergo controllable micro-deformation during impact, thereby absorbing and dispersing energy and preventing instantaneous tearing caused by stress concentration. The long, strip-shaped design ensures that the filler is evenly distributed along the length of the connecting bag, creating a continuous and stable force path between the supports and preventing the emergence of local weak points.
[0030] Furthermore, the long strip of non-woven cement bag is filled with several steel wire ropes and cement.
[0031] Specifically, steel wire rope refers to a flexible metal wire product capable of withstanding tensile force, which can be made from single-strand steel wire or multi-strand stranded steel wire. In practical applications, the steel wire rope forms a mesh-like skeleton structure within the cement matrix, aiming to disperse external impact forces and constrain the scattering path of cement particles. Cement refers to a commonly used building material, which can be ordinary Portland cement or special engineering cement, intended to provide the necessary mass and rigidity support to ensure the stability of the guardrail under static conditions.
[0032] Furthermore, an insertion interface 221 is formed at the junction of the elastic ring and the connecting bag, which can accommodate the insertion of a long strip of cement non-woven bag.
[0033] In at least one embodiment, such as Figure 2As shown, the right end 231 of the clamp is bent to the bottom of the elastic ring, and the left end 232 of the clamp is bent to overlap with the right end of the clamp, so that the left end is inserted into the limiting slot 234 in the annular groove.
[0034] In detail, this solution effectively improves the impact resistance and reliability of the connection structure by optimizing the geometry and fixing method of the clamp ends. The right end of the clamp, bent to the bottom of the elastic ring, not only provides stable support but also restricts the clamp's vertical movement. Simultaneously, the left and right ends of the clamp overlap and are positioned by a limiting slot inserted into the annular groove; this design effectively suppresses the tendency for vertical sliding. Furthermore, this structure, together with the elastic ring, annular groove, and other components, forms a complete locking system that maintains the overall stability of the guardrail in high-impact scenarios such as traffic accidents, thereby reducing the risk of accidental component separation.
[0035] Furthermore, both the left and right ends of the clamp are provided with positioning holes, and the screw 233 passes through the positioning holes at the left and right ends of the clamp in sequence and is then threaded into the elastic band.
[0036] Specifically, a positioning hole refers to a through-hole structure opened at the end of the clamp, which can be implemented in various forms such as a circular hole, an elliptical hole, or a slotted hole. The purpose of the positioning hole is to provide a precise insertion path for the screw, ensuring natural alignment when the left and right ends of the clamp overlap, and avoiding fixing failure due to assembly deviations or material deformation. A screw is a fastener with external threads, which can be a self-tapping screw or a machine screw, etc. Its main purpose is to rigidly lock the overlapping ends of the clamp into one piece and evenly transmit the fixing force to the inside of the elastic band.
[0037] Furthermore, a spring washer is provided between the screw and the left end of the clamp.
[0038] In some embodiments, to ensure the clamp's fixing effect, the overlapping area between the left and right ends of the clamp is welded.
[0039] In detail, the left and right ends of the clamp are welded together in an overlapping state, forming an inseparable integral structure. This integral structure significantly enhances the connection strength and durability of the clamp, enabling it to withstand external impacts such as vehicle collisions without relative displacement or separation. Since the welding acts directly on the overlapping area, it effectively maintains the stable fixation of the connecting bag, avoiding the risk of secondary injury due to connection failure. Furthermore, welding, as a permanent connection method, is better suited to the long-term use requirements of road guardrails in complex traffic environments compared to other fixing methods. This design not only solves the problem of weak clamp connections but also improves the reliability and safety of the entire guardrail system.
[0040] In some embodiments, the left end of the clamp is bent and riveted to the right end of the clamp with rivets instead of screws.
[0041] In detail, this solution significantly improves the overall stability of the guardrail by introducing rivets in the overlapping area between the left and right ends of the clamp. The left end of the clamp, after being bent, forms a tightly fitting overlapping structure with the right end. This design not only provides a precise positioning basis but also expands the effective contact area, creating favorable conditions for the application of riveting technology. Based on this, the overlapping part is permanently fixed by rivets, utilizing the plastic deformation characteristics of metal materials to form an irreversible mechanical locking structure in the overlapping area. Simultaneously, this solution, together with components such as elastic rings and connecting pockets, forms a more robust overall structure, fundamentally solving the safety hazards caused by connection failures and ensuring higher safety performance of the guardrail in accident scenarios.
[0042] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. An improved urban traffic road guardrail, comprising several posts, characterized in that, A connecting component is installed between adjacent support columns. The connecting component includes an elastic ring, a connecting bag, and a clamp. The elastic ring is sleeved on the support column, and the connecting bag is connected to the elastic ring. A clamp is formed at the other end of the connecting bag, and the clamp is fixedly connected to the adjacent elastic ring.
2. The improved urban traffic road guardrail according to claim 1, characterized in that, The support column includes a column body, on which a plurality of annular grooves are provided from top to bottom, and the elastic ring is installed in the annular grooves.
3. The improved urban traffic road guardrail according to claim 2, characterized in that, A support base is formed at the bottom of the column, and the support base is fixed to the ground by expansion bolts.
4. The improved urban traffic road guardrail according to claim 1, characterized in that, The connecting bag is filled with a long strip of cement non-woven fabric bag.
5. The improved urban traffic road guardrail according to claim 4, characterized in that, The long non-woven cement bag is filled with several steel wire ropes and cement.
6. The improved urban traffic road guardrail according to claim 4, characterized in that, The elastic ring and the connecting bag form an insertion interface, which can accommodate the insertion of a long strip of cement non-woven fabric bag.
7. The improved urban traffic road guardrail according to claim 2, characterized in that, The right end of the clamp is bent to the bottom of the elastic ring, and the left end of the clamp is bent to overlap with the right end of the clamp, so that the left end is inserted into the limiting slot in the annular groove.
8. The improved urban traffic road guardrail according to claim 7, characterized in that, The left and right ends of the clamp are provided with positioning holes. The screw passes through the positioning holes at the left and right ends of the clamp in sequence and is then threaded into the elastic band.
9. The improved urban traffic road guardrail according to claim 7, characterized in that, The overlap between the left and right ends of the clamp is welded.
10. The improved urban traffic road guardrail according to claim 7, characterized in that, The left end of the clamp is bent and riveted to the right end of the clamp with rivets.