A road traffic barrier
Patent Information
- Application Number
- CN202522263046.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-27
AI Technical Summary
但更换前,须先拆除底盘上的膨胀螺栓,膨胀螺栓因长期埋入地面,易受雨水、泥沙侵蚀导致螺纹锈蚀,或因车辆碾压、地面沉降造成螺栓与混凝土咬合过紧,拆除时需借助专业工具(如冲击钻、扳手)反复撬动、旋转,不仅耗时费力,还可能因操作不当破坏周边路面结构(如导致地面出现裂缝、混凝土剥落)
当隔离警示管受撞击变形受损时,无需拆除底盘与地面连接的膨胀螺栓,仅需旋转隔离警示管,使螺纹头与底盘脱离,即可直接取下受损的隔离警示管。这种设计避免了传统方案中拆除锈蚀、咬合过紧膨胀螺栓的繁琐操作,无需专业工具反复撬动,也不会因拆除过程破坏周边路面结构,缩短更换时间,降低人工成本。
Smart Images

Figure CN224799376U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a road traffic isolation device, belonging to the field of road traffic. Background Technology
[0002] These red plastic tubes installed on roads to separate lanes are primarily road safety barriers. Common traffic separation and guidance facilities on urban roads, residential roads, and temporary construction sites, they use their striking red color and tubular structure to divide road space, guide traffic flow, and provide safety warnings. The base of the road safety barrier is securely fixed to the ground with multiple sets of expansion bolts. This connection method provides stable support for the tube, preventing it from shifting even under the influence of everyday traffic scrapes or strong winds, ensuring its continued effectiveness in separating and warning traffic. This makes them particularly suitable for urban roads with high traffic volume or temporary construction sites.
[0003] However, replacing damaged warning tubes using this fixed structure can lead to significant construction inconvenience and increased costs. Since warning tubes are mostly made of lightweight materials like PVC, they are prone to deformation and breakage upon vehicle impact, requiring timely replacement to ensure road safety. However, before replacement, the expansion bolts on the chassis must be removed. These bolts, having been buried in the ground for a long time, are susceptible to corrosion from rainwater and mud, leading to thread rust. Vehicle traffic and ground subsidence can also cause the bolts to become excessively tight against the concrete. Removal requires specialized tools (such as impact drills and wrenches) to repeatedly pry and rotate them, which is not only time-consuming and labor-intensive but can also damage the surrounding road structure if handled improperly (e.g., causing cracks in the ground or concrete spalling). Furthermore, the removed expansion bolts are often unusable due to rust and deformation, necessitating the purchase of new bolts for installing the new warning tubes, further increasing material costs. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a road traffic isolation device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a road traffic isolation device, comprising: The isolation warning tube has an open end. The chassis is located below the isolation warning tube. The chassis and the isolation warning tube are arranged concentrically. Multiple foot holes are evenly opened on the upper surface of the chassis. A thin plastic tube is installed inside the isolation warning tube. The upper end of the thin plastic tube is installed at the top of the isolation warning tube, and the lower end of the thin plastic tube is installed with a threaded head, which is threadedly connected to the chassis.
[0006] Furthermore, a protruding post for insertion into a hole in the ground is installed at the center of the lower surface of the chassis, and the threaded head is threadedly connected to the protruding post after passing through the chassis.
[0007] Furthermore, the lower surface of the protruding post is recessed to form a rectangular groove, and a through hole is provided at the top of the rectangular groove to penetrate the chassis. A rectangular block is inserted in the rectangular groove, and a screw hole that matches the through hole is provided on one side of the rectangular block. The lower end of the threaded head passes through the through hole and is threaded into the screw hole.
[0008] Furthermore, the upper end of the threaded head is glued to the inside of the thin plastic tube, and a blocking ring is provided on the lower side of the thin plastic tube. The blocking ring is sleeved on the threaded head and connected and fixed to the threaded head.
[0009] Furthermore, a corrugated section is installed at the lower end of the isolation warning tube, and the corrugated section and the isolation warning tube are integrally formed.
[0010] Furthermore, a boss is installed at the center of the upper surface of the chassis, and a cover is connected to the upper surface of the boss by Velcro. A support sleeve is fixed to the upper end of the cover, and the lower end of the corrugated pipe is inserted into the support sleeve.
[0011] Furthermore, a frustum is installed on the upper surface of the isolation warning tube, and a blind hole is formed by an upward indentation at the middle of the lower surface of the frustum. The upper end of the thin plastic tube is glued into the blind hole.
[0012] Furthermore, the isolation warning tube is a plastic component, and multiple sets of warning reflective films are fitted onto the isolation warning tube.
[0013] The beneficial effects of this utility model are: When the warning isolation tube is deformed and damaged by impact, there is no need to remove the expansion bolts connecting the chassis to the ground. Simply rotate the warning isolation tube to disengage the threaded head from the chassis, and the damaged warning isolation tube can be removed directly. This design avoids the cumbersome operation of removing rusted or overtightened expansion bolts in traditional solutions. It does not require repeated prying with professional tools, nor does it damage the surrounding road structure during the removal process, thus shortening replacement time and reducing labor costs. Attached Figure Description
[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a road traffic isolation device according to the present invention; Figure 2 This is another perspective view of a road traffic isolation device according to the present invention; Figure 3This is an exploded structural diagram of a road traffic isolation device according to the present invention; Figure 4 This is an exploded structural diagram of a road traffic isolation device according to this utility model from another perspective; In the picture: 1. Isolation warning tube; 11. Frustum; 12. Warning reflective film; 13. Corrugated section; 2. Chassis; 21. Anchor holes; 22. Boss; 23. Column; 24. Rectangular groove; 3. Cover; 31. Support sleeve; 4. Rectangular blocks; 5. Thin plastic tube; 51. Threaded head; 52. Retaining ring. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0016] Please see Figures 1-4 This utility model provides a technical solution: a road traffic isolation device, including an isolation warning tube 1, the lower end of which is open, the isolation warning tube 1 is a plastic component, multiple sets of warning reflective films 12 are sleeved on the isolation warning tube 1, a corrugated tube part 13 is installed at the lower end of the isolation warning tube 1, the corrugated tube part 13 and the isolation warning tube 1 are integrally formed, a chassis 2 is set on the lower side of the isolation warning tube 1, the chassis 2 and the isolation warning tube 1 are arranged concentrically, a boss 22 is installed at the middle position of the upper surface of the chassis 2, a cover 3 is connected to the upper surface of the boss 22 by Velcro, a support sleeve 31 is fixed to the upper end of the cover 3, the lower end of the corrugated tube part 13 is inserted into the support sleeve 31, the cover 3 on the boss 22 is quickly fixed by Velcro, the support sleeve 31 at the upper end of the cover 3 can support the corrugated tube part 13, increase the contact area and improve the stability of the structure. When a vehicle experiences a minor impact, the bellows section 13 can absorb the impact energy through its own deformation, reducing the direct force on the isolation warning tube 1 and lowering the probability of the isolation warning tube 1 breaking or deforming.
[0017] See Figures 1-4Multiple foot holes 21 are evenly distributed on the upper surface of the chassis 2. A thin plastic tube 5 is installed inside the isolation warning tube 1. The upper end of the thin plastic tube 5 is installed at the top of the isolation warning tube 1. A truncated cone 11 is installed on the upper surface of the isolation warning tube 1. The lower surface of the truncated cone 11 is recessed upward to form a blind hole, allowing the upper end of the thin plastic tube 5 to be glued into the blind hole, increasing the connection range between the thin plastic tube 5 and the isolation warning tube 1. A threaded head 51 is installed at the lower end of the thin plastic tube 5. The upper end of the threaded head 51 is glued into the thin plastic tube 5. A retaining ring 52 is provided on the lower side of the thin plastic tube 5. The retaining ring 52 is fitted onto the threaded head 51 and connected and fixed to the threaded head 51. The threaded head 51 is threadedly connected to the chassis 2. The retaining ring 52 limits the length of the threaded head 51 inserted into the thin plastic tube 5. When the isolation warning tube 1 is deformed and damaged by impact, it is not necessary to remove the expansion bolts connecting the chassis 2 to the ground. Simply rotate the isolation warning tube 1 to detach the threaded head 51 from the chassis 2, and the damaged isolation warning tube 1 can be directly removed. This design avoids the tedious process of removing rusted and overtightened expansion bolts in traditional solutions. It eliminates the need for repeated prying with specialized tools and prevents damage to the surrounding road structure during removal, significantly shortening replacement time and reducing labor costs. The chassis 2 is permanently fixed to the ground with expansion bolts. When replacing the isolation warning tube 1, components connected to the ground, such as the chassis 2, protruding post 23, and rectangular block 4, can be completely preserved and reused, eliminating the need for component scrapping due to the removal of expansion bolts, as is the case with traditional solutions. Only the damaged isolation warning tube 1 and the internal thin plastic tube 5 need to be replaced, reducing the amount of new materials purchased and lowering maintenance material costs, making it particularly suitable for batch replacement scenarios.
[0018] See 1- Figure 4 A protruding post 23 for insertion into a hole in the ground is installed at the center of the lower surface of the chassis 2. A threaded head 51 passes through the chassis 2 and is threadedly connected to the protruding post 23. The lower surface of the protruding post 23 is recessed to form a rectangular groove 24. A through hole is opened at the top of the rectangular groove 24 to penetrate the chassis 2. A rectangular block 4 is inserted into the rectangular groove 24. One side of the rectangular block 4 has a screw hole that matches the through hole. The lower end of the threaded head 51 passes through the through hole and is threadedly connected to the screw hole. The protruding post 23 on the lower side of the chassis 2 can be inserted into a pre-set hole in the ground. The connection between the rectangular block 4 and the threaded head 51 can enhance the engagement between the chassis 2 and the ground and reduce the thickness of the chassis 2. While ensuring the fixing effect, it can reduce the amount of material used and the difficulty of construction.
[0019] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A road traffic isolation device, characterized in that, include: The isolation warning tube (1) has an open end; The chassis (2) is set on the lower side of the isolation warning tube (1). The chassis (2) and the isolation warning tube (1) are arranged concentrically. Multiple foot holes (21) are evenly opened on the upper surface of the chassis (2). A thin plastic tube (5) is installed inside the isolation warning tube (1). The upper end of the thin plastic tube (5) is installed at the top of the isolation warning tube (1), and the lower end of the thin plastic tube (5) is fitted with a threaded head (51). The threaded head (51) is threadedly connected to the chassis (2).
2. The road traffic isolation device according to claim 1, characterized in that: A protruding post (23) for insertion into a hole in the ground is installed at the middle position of the lower surface of the chassis (2). The threaded head (51) passes through the chassis (2) and is threadedly connected to the protruding post (23).
3. A road traffic isolation device according to claim 2, characterized in that: The lower surface of the protruding post (23) is recessed to form a rectangular groove (24). A through hole is provided at the top of the rectangular groove (24) to penetrate the base plate (2). A rectangular block (4) is inserted in the rectangular groove (24). A screw hole is provided on one side of the rectangular block (4) to cooperate with the through hole. The lower end of the threaded head (51) passes through the through hole and is threaded into the screw hole.
4. A road traffic isolation device according to claim 1, characterized in that: The upper end of the threaded head (51) is glued to the inside of the thin plastic tube (5). A blocking ring (52) is provided on the lower side of the thin plastic tube (5). The blocking ring (52) is sleeved on the threaded head (51) and connected and fixed to the threaded head (51).
5. A road traffic isolation device according to claim 1, characterized in that: The lower end of the isolation warning tube (1) is equipped with a corrugated tube section (13), and the corrugated tube section (13) and the isolation warning tube (1) are integrally formed.
6. A road traffic isolation device according to claim 5, characterized in that: A boss (22) is installed in the middle of the upper surface of the chassis (2). A cover (3) is connected to the upper surface of the boss (22) by Velcro. A support sleeve (31) is fixed to the upper end of the cover (3). The lower end of the corrugated pipe (13) is inserted into the support sleeve (31).
7. A road traffic isolation device according to claim 1, characterized in that: The upper surface of the isolation warning tube (1) is equipped with a frustum (11), and the lower surface of the frustum (11) is recessed upward to form a blind hole. The upper end of the thin plastic tube (5) is glued to the blind hole.
8. A road traffic isolation device according to claim 1, characterized in that: The isolation warning tube (1) is a plastic component, and multiple sets of warning reflective films (12) are fitted on the isolation warning tube (1).