A safety fence for road maintenance
By designing a safety fence for highway maintenance with a rotating rod and connecting rod structure, the problem of difficult handling and splicing of guardrails was solved, improving work efficiency and enhancing stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HOUYI ROAD & BRIDGE ENGINEERING CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-23
AI Technical Summary
The existing highway maintenance guardrails are difficult to move and assemble, resulting in low work efficiency for staff.
A safety fence for highway maintenance was designed, which adopts a rotating rod and connecting rod structure. By pulling the connecting rod, the warning tape is rotated and fixed, avoiding the splicing process. The design of sliding rod and threaded rod improves the stability of the device.
It reduced the workload for staff, improved work efficiency, enhanced the stability of the device, and reduced the probability of the warning tape becoming loose.
Smart Images

Figure CN224396185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway maintenance technology, and in particular to a safety fence for highway maintenance. Background Technology
[0002] Highway maintenance is a crucial aspect of ensuring the safety, efficiency, and sustainable development of transportation. It includes routine road cleaning, landscaping, and road repair. During highway maintenance, safety fences are typically erected to temporarily isolate the maintenance area in order to allow vehicles and pedestrians to avoid the area and prevent unauthorized personnel from entering.
[0003] During highway maintenance, guardrails are used to temporarily isolate roads. Existing guardrails are all frame structures, which make them difficult for workers to move and require splicing before use. This increases the difficulty of the work and is not conducive to improving the efficiency of the workers. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a safety fence for highway maintenance.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a safety fence for highway maintenance, comprising a base, a hollow guardrail fixedly mounted on the upper surface of the base, a rotating groove penetrating the upper surface of the guardrail, a rotating rod rotatably mounted in the rotating groove, a plurality of warning strips sleeved on the outer wall of the rotating rod, the plurality of warning strips penetrating the guardrail and extending beyond the guardrail, a connecting rod being provided at the end of the plurality of warning strips away from the rotating rod, a locking block being provided at both ends of the connecting rod, and two connecting blocks symmetrically arranged on the side wall of the guardrail away from the warning strips, the connecting blocks and the locking blocks matching each other.
[0006] By adopting the above technical solution, when workers need to use the safety fence, they need to pull the connecting rod, which will cause the warning tape wrapped around the rotating rod to rotate. Subsequently, workers use the locking blocks and connecting blocks to fix the connecting rod to the side wall of another guardrail, thereby isolating the highway maintenance area. In this process, workers can use the fence simply by pulling the connecting rod, without the need for splicing, thus reducing the difficulty of the workers' work and improving their work efficiency.
[0007] Furthermore, a rotating groove is provided on the inner bottom wall of the guardrail, and the rotating rod is rotatably connected to the rotating groove. Multiple fixing holes are arranged in a circular array on the outer wall of the rotating rod, and a fixing rod is slidably disposed in each of the multiple fixing holes.
[0008] Furthermore, a sliding groove is provided on the inner wall of the plurality of fixing holes, and a sliding rod is slidably disposed in the sliding groove. The side wall of the plurality of fixing rods near the sliding rod is provided with rounded corners.
[0009] By adopting the above technical solution, when the operator needs to fix the rotating rod, the operator needs to slide the sliding rod downwards, so that the sliding rod gradually approaches and finally abuts against the rounded corner, so that the fixing rod slides under the action of the sliding rod, and then multiple fixing rods abut against the inner wall of the rotating groove, thereby fixing the rotating rod. This reduces the probability of the rotating rod rotating due to external force, thereby reducing the probability of the warning tape being too loose, and thus improving the stability of the device.
[0010] Furthermore, a threaded rod is threaded through the upper surface of the rotating rod, and the threaded rod is rotatably connected to the sliding rod.
[0011] By adopting the above technical solution, when the worker needs to slide the slide bar, the worker needs to rotate the threaded rod, which moves the threaded rod downwards. This causes the slide bar to move downwards under the action of the threaded rod, thus reducing the difficulty for the worker to slide the slide bar and consequently reducing the workload. Furthermore, the threaded rod also reduces the probability of the slide bar moving under external force, thereby improving the stability of the device.
[0012] Furthermore, symmetrical limiting grooves are formed on the inner wall of the slide groove, and limiting components are slidably arranged in both limiting grooves, with both limiting components being fixed to the slide rod.
[0013] By adopting the above technical solution, the limiting component reduces the probability that the sliding rod will follow the threaded rod when the operator rotates the threaded rod, thereby improving the stability of the device.
[0014] Furthermore, a rotating hole is provided on the upper surface of the slide rod, and an annular groove is rotatably provided in the rotating hole. The threaded rod is rotatably connected to the rotating hole, and an annular block is rotatably provided in the annular groove. The annular block and the threaded rod are fixed to each other.
[0015] By adopting the above technical solution, the annular block reduces the probability of the threaded rod and the slide rod separating from each other, thereby improving the stability of the device.
[0016] Furthermore, a circular groove is formed on the inner wall of the rotating groove, and a circular block is rotatably arranged in the circular groove, the circular block being fixed to the rotating rod.
[0017] By adopting the above technical solution, the circular block reduces the probability of the rotating rod moving, thereby improving the stability of the device.
[0018] Furthermore, the upper surface of the base is provided with a plurality of mounting holes.
[0019] By adopting the above technical solution, the mounting holes reduce the difficulty for workers to fix the base, thereby reducing the difficulty of their work.
[0020] In summary, this utility model has the following beneficial effects:
[0021] 1. In this application, when workers need to use the safety fence, they need to pull the connecting rod, which will cause the warning tape wrapped around the rotating rod to rotate. Subsequently, workers use the locking blocks and connecting blocks to fix the connecting rod to the side wall of another guardrail, thereby isolating the highway maintenance area. In this process, workers can use the fence simply by pulling the connecting rod, without the need for splicing, thus reducing the difficulty of the workers' work and improving their work efficiency.
[0022] 2. In this application, when the operator needs to fix the rotating rod, the operator needs to slide the sliding rod downwards, so that the sliding rod gradually approaches and finally abuts the rounded corner, so that the fixing rod slides under the action of the sliding rod, and so that multiple fixing rods abut against the inner wall of the rotating groove, thereby fixing the rotating rod, thereby reducing the probability of the rotating rod rotating under external force, thereby reducing the probability of the warning tape being too loose, and thus improving the stability of the device.
[0023] 3. In this application, when the worker needs to slide the slide bar, the worker needs to rotate the threaded rod, which moves the threaded rod downwards, thereby causing the slide bar to move downwards under the action of the threaded rod. This reduces the difficulty for the worker to slide the slide bar, thus reducing the workload. In addition, the threaded rod also reduces the probability of the slide bar moving under external force, thereby improving the stability of the device. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0025] Figure 2 This is a cross-sectional structural diagram of the guardrail in an embodiment of this utility model;
[0026] Figure 3 yes Figure 2 A magnified structural diagram of A in the middle;
[0027] Figure 4 yes Figure 2 A magnified structural diagram of B in the diagram.
[0028] In the diagram: 1. Base; 11. Guardrail; 12. Rotating groove; 13. Rotating rod; 14. Warning tape; 15. Connecting rod; 16. Locking block; 17. Connecting block; 2. Rotating groove; 21. Fixing hole; 22. Sliding groove; 23. Limiting groove; 24. Rotating hole; 25. Annular groove; 26. Circular groove; 3. Fixing rod; 4. Sliding rod; 41. Rounded corner; 5. Threaded rod; 6. Limiting component; 7. Annular block; 8. Circular block; 9. Mounting hole. Detailed Implementation
[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0030] like Figure 1-4 As shown in the illustration, this application discloses a safety fence for highway maintenance, including a base 1, a guardrail 11, a rotating rod 13, warning tapes 14, a connecting rod 15, a locking block 16, a connecting block 17, a fixing rod 3, a sliding rod 4, and a threaded rod 5. The base 1 is a rectangular plate structure, and the guardrail 11 is a hollow cuboid structure, fixedly mounted on the upper surface of the base 1. A rotating groove 12 is formed through the upper surface of the guardrail 11. The rotating rod 13 is a round rod structure with a vertical axis, and is rotatably mounted within the rotating groove 12. Multiple warning tapes 14 are provided and fitted onto the outer wall of the rotating rod 13, with each tape penetrating the guardrail 11 and extending beyond it. The connecting rod 15 is a round rod structure with a vertical axis, and is positioned at the end of each warning tape 14 furthest from the rotating rod 13. Two locking blocks 16 are provided and are located at both ends of the connecting rod 15. Two connecting blocks 17 are provided and are symmetrically located on the side wall of the guardrail 11 away from the warning tape 14. The connecting blocks 17 and the locking blocks 16 are matched with each other.
[0031] When workers need to use the safety fence, they need to pull the connecting rod 15, which will cause the warning tape 14 wrapped around the rotating rod 13 to rotate. Then, workers use the locking block 16 and connecting block 17 to fix the connecting rod 15 to the side wall of another guardrail 11, thereby isolating the highway maintenance area. In this process, workers can use the fence simply by pulling the connecting rod 15, without the need for splicing, which reduces the difficulty of the work and improves the efficiency of the workers.
[0032] A rotating groove 2 is provided on the inner bottom wall of the guardrail 11. The rotating rod 13 is rotatably connected to the rotating groove 2, and multiple fixing holes 21 are arranged in a circular array on the outer wall of the rotating rod 13. The fixing rod 3 is a round rod structure with its axis horizontal. Multiple fixing rods 3 are provided and are slidably disposed in the multiple fixing holes 21.
[0033] Multiple fixing holes 21 have a common groove 22 on their inner walls. The slide rod 4 is a round rod structure with its axis coinciding with the axis of the rotating rod 13. The slide rod 4 is slidably disposed in the groove 22. Multiple fixing rods 3 have rounded corners 41 on their side walls near the slide rod 4.
[0034] When the operator needs to fix the rotating rod 13, the operator needs to slide the sliding rod 4 downwards, so that the sliding rod 4 gradually approaches and finally abuts against the rounded corner 41, so that the fixing rod 3 slides under the action of the sliding rod 4, and thus the multiple fixing rods 3 abut against the inner wall of the rotating groove 2, thereby fixing the rotating rod 13, thereby reducing the probability that the rotating rod 13 will rotate due to external force, thereby reducing the probability that the warning tape 14 is too loose, and thus improving the stability of the device.
[0035] The threaded rod 5 is threaded through the upper surface of the rotating rod 13, and its axis coincides with the axis of the sliding rod 4. The threaded rod 5 is rotatably connected to the sliding rod 4.
[0036] When the operator needs to slide the slide bar 4, they need to rotate the threaded rod 5, which moves the threaded rod 5 downwards. This causes the slide bar 4 to move downwards under the action of the threaded rod 5, thus reducing the difficulty of sliding the slide bar 4 and thus reducing the workload for the operator. In addition, the threaded rod 5 also reduces the probability of the slide bar 4 moving under external force, thereby improving the stability of the device.
[0037] To improve the stability of the device, symmetrical limiting grooves 23 are formed on the inner wall of the slide 22. Limiting elements 6 are slidably installed in both limiting grooves 23, and both limiting elements 6 are fixed to the slide rod 4. The limiting elements 6 reduce the probability that the slide rod 4 will rotate with the threaded rod 5 when the operator rotates the threaded rod 5, thereby improving the stability of the device.
[0038] To improve the stability of the device, a rotating hole 24 is provided on the upper surface of the slide rod 4. An annular groove 25 is rotatably provided within the rotating hole 24. The threaded rod 5 is rotatably connected to the rotating hole 24. An annular block 7 is rotatably provided within the annular groove 25, and the annular block 7 is fixed to the threaded rod 5. The annular block 7 reduces the probability of the threaded rod 5 and the slide rod 4 separating from each other, thereby improving the stability of the device.
[0039] To improve the stability of the device, a circular groove 26 is formed on the inner wall of the rotating groove 12. A circular block 8 is rotatably disposed within the circular groove 26, and the circular block 8 is fixed to the rotating rod 13. The circular block 8 reduces the probability of the rotating rod 13 moving, thereby improving the stability of the device.
[0040] To reduce the difficulty of the work for the staff, multiple mounting holes 9 are arrayed on the upper surface of the base 1. The mounting holes 9 reduce the difficulty for the staff to fix the base 1, thereby reducing the difficulty of the work for the staff.
[0041] The operating principle of a safety fence for highway maintenance in this embodiment is as follows: When workers need to use the safety fence, they need to pull the connecting rod 15, which causes the warning tape 14 wrapped around the rotating rod 13 to rotate. Subsequently, workers use the locking block 16 and connecting block 17 to fix the connecting rod 15 to the side wall of another guardrail 11, thereby isolating the highway maintenance area. During this process, workers can use the fence simply by pulling the connecting rod 15, without the need for splicing, thus reducing the difficulty of the workers' work and improving their work efficiency.
[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A safety fence for road maintenance comprising a base (1) characterised in that: A hollow guardrail (11) is fixedly installed on the upper surface of the base (1). A rotating groove (12) is opened through the upper surface of the guardrail (11). A rotating rod (13) is rotatably installed in the rotating groove (12). Multiple warning strips (14) are sleeved on the outer wall of the rotating rod (13). The multiple warning strips (14) all pass through the guardrail (11) and extend beyond the guardrail (11). A connecting rod (15) is provided at the end of the multiple warning strips (14) away from the rotating rod (13). A locking block (16) is provided at both ends of the connecting rod (15). Two connecting blocks (17) are symmetrically arranged on the side wall of the guardrail (11) away from the warning strips (14). The connecting blocks (17) and the locking blocks (16) match each other.
2. A safety fence for road maintenance according to claim 1, characterised in that: The guardrail (11) has a rotating groove (2) on its inner bottom wall. The rotating rod (13) is rotatably connected to the rotating groove (2). The outer wall of the rotating rod (13) has a plurality of fixing holes (21) arranged in a circular array. Each of the plurality of fixing holes (21) has a fixing rod (3) slidably installed in it.
3. A safety fence for road maintenance according to claim 2, characterised in that: A sliding groove (22) is provided on the inner wall of the multiple fixing holes (21), and a sliding rod (4) is slidably arranged in the sliding groove (22). The side walls of the multiple fixing rods (3) near the sliding rod (4) are all provided with rounded corners (41).
4. A safety fence for road maintenance according to claim 3, characterised in that: The upper surface of the rotating rod (13) is threaded with a threaded rod (5), which is rotatably connected to the slide rod (4).
5. A safety fence for road maintenance according to claim 3, characterised in that: The inner wall of the slide (22) is symmetrically provided with limiting grooves (23), and limiting members (6) are slidably arranged in both limiting grooves (23). Both limiting members (6) are fixed to the slide rod (4).
6. A safety fence for road maintenance according to claim 4, characterised in that: The upper surface of the slide rod (4) is provided with a rotating hole (24), and an annular groove (25) is rotatably provided in the rotating hole (24). The threaded rod (5) is rotatably connected to the rotating hole (24), and an annular block (7) is rotatably provided in the annular groove (25). The annular block (7) and the threaded rod (5) are fixed to each other.
7. The safety fence for highway maintenance according to claim 1, wherein: A circular groove (26) is provided on the inner wall of the rotating groove (12), and a circular block (8) is rotatably arranged in the circular groove (26). The circular block (8) is fixed to the rotating rod (13).
8. The safety fence for highway maintenance according to claim 1, wherein: The upper surface of the base (1) is provided with a plurality of mounting holes (9).