Protective fence for highway construction
By introducing a rotating rod and worm gear structure into the protective fence, the self-locking storage of the inclined plate and the automatic cleaning of the reflective warning signs are achieved, solving the problems of difficult storage and inconvenient cleaning of the inclined plate in the existing technology, and improving the convenience and warning effect of the fence.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN EXPRESSWAY DESIGN CONSULTING RES INST CO LTD
- Filing Date
- 2025-02-24
- Publication Date
- 2026-04-21
AI Technical Summary
The existing sloping panels of highway construction safety fences are difficult to store, reducing convenience, and reflective warning signs are inconvenient to clean.
A structure including a fence frame, mounting bracket, rotating rod, worm gear and worm wheel was designed. The inclined plate is self-locking and stored through transmission components and drive components, and the reflective warning sign is automatically cleaned through reciprocating screw and cleaning brush.
It improves the convenience of protective fencing and the cleaning effect of reflective warning signs, enhancing the flexibility and warning effect of the fencing.
Smart Images

Figure CN224149301U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of highway construction technology, specifically highway construction protective fence. Background Technology
[0002] Highway construction is an important part of highway development. It involves the construction of main structures such as roadbeds, pavements, bridges, and tunnels, as well as ancillary facilities such as traffic signs, markings, and landscaping. Protective fences are often used during highway construction to effectively isolate the construction area from the normal road, thereby protecting the safety of construction personnel and equipment.
[0003] Utility model patent application publication number 202221014484.1 discloses a safety guardrail for highway construction, including a support post. The top wall of the support post has a rectangular groove, and the inner wall of the rectangular groove is provided with a warning component. A first reflective strip is attached to the outer wall of the support post. A fixing component is provided at the bottom of the support post. A second connecting plate and a third connecting plate are fixedly installed on the inner side of the support post. The fixing base is fixed to the ground by fixing bolts, and then the support post is fixed to the fixing base. The inclined plate is fixed to the second and third connecting plates, thereby strengthening the impact resistance of the fence. Then, warning signs and warning components are inserted into the inner wall of the rectangular groove, which serves as a device to warn and remind pedestrians. This device not only strengthens the impact resistance of the fence, but is also very convenient and quick to install.
[0004] As can be seen from the above patent, highway construction protective fences still have shortcomings in actual use. The most obvious one is that when using protective fences, inclined plates are usually used to improve the stability of the protective fences. However, the inclined plates are usually directly installed on the protective fences. Although this ensures its stability and protective effect, it limits the flexibility of the inclined plates, making them difficult to store and reducing the convenience of the protective fences. Therefore, we propose highway construction protective fences. Utility Model Content
[0005] The purpose of this utility model is to provide a protective fence for highway construction in order to solve the problems mentioned in the background art.
[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0007] Specifically, this application describes a highway construction protective fence, comprising: a fence frame, a first mounting frame, and a second mounting frame. The first and second mounting frames are respectively fixedly connected to the upper ends of the two side walls of the fence frame. A reflective warning sign is provided on one side wall of the fence frame. A support plate is fixedly connected to the upper end of the side wall of the fence frame. Multiple sets of U-shaped plates are fixedly connected to the other side wall of the fence frame. A rotating rod is rotatably connected to the inner cavity of the U-shaped plate. An inclined plate is fixedly connected to the outer wall of the rotating rod. A rotating rod is rotatably connected to the end of the side wall of the fence frame near the U-shaped plate. A worm gear is fixedly connected to the outer wall of the rotating rod. A transmission component for driving the rotating rod to rotate is provided on the rotating rod.
[0008] The inner cavity of the first mounting bracket is rotatably connected to a reciprocating screw, and the reciprocating screw is equipped with a cleaning component that cleans the reflective warning sign by rotating. The inner cavity of the second mounting bracket is rotatably connected to a worm gear, which meshes with a worm wheel. One end of the reciprocating screw and one end of the worm gear are both fixedly connected to a connecting rod. The support plate is equipped with a drive assembly for rotating the connecting rod.
[0009] As a preferred technical solution of this application, the transmission component includes multiple sets of conical wheels, which are respectively fixedly connected to one end of the rotating rod and one end of the rotating rod. The two sets of conical wheels mesh with each other, and an L-shaped connecting plate for supporting the rotation of the rotating rod is fixedly connected to the side wall of the U-shaped plate.
[0010] As a preferred technical solution of this application, the cleaning component includes a moving rod and a cleaning brush. The cleaning brush is fixedly connected to the side wall of the moving rod, and a threaded seat is threadedly connected to the outer side wall of the reciprocating screw. The moving rod is fixedly connected to the bottom of the threaded seat.
[0011] As a preferred technical solution of this application, the driving component includes a movable frame, which is slidably disposed on the top of the support plate, and the inner cavity of the movable frame is provided with a power component for driving the connecting rod to rotate.
[0012] As a preferred technical solution of this application, the power component includes a movable plate, a rotating shaft, and a positioning block. The movable plate is slidably disposed in the inner cavity of the movable frame. The rotating shaft is rotatably connected to the side wall of the movable frame through a bearing. The positioning block is fixedly connected to one end of the rotating shaft. One end of the connecting rod is provided with a positioning groove that matches the positioning block.
[0013] As a preferred technical solution of this application, the other end of the rotating shaft is fixedly connected to a turntable for driving the rotating shaft to rotate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In the scheme of this application:
[0016] 1. The horizontal movement drive component enables the drive component to drive the connecting rod to rotate, which in turn drives the worm gear to rotate. The worm gear drives the worm wheel and the rotating rod to rotate, and the rotating rod drives the rotating rod and the inclined plate to rotate through the transmission component. The worm gear and worm wheel enable the inclined plate to self-lock after rotation and support the fence frame, thus facilitating the storage of the inclined plate and improving the convenience of the protective fence.
[0017] 2. The rotating shaft and positioning block are moved by the turntable, causing the positioning block to move out of the positioning groove of the connecting rod on the worm gear, and the movable frame is moved horizontally to connect the positioning block with the positioning groove of the connecting rod on the reciprocating screw. The turntable drives the rotating shaft and positioning block to rotate, and the positioning block drives the reciprocating screw to rotate through the positioning groove. The reciprocating screw drives the threaded seat, moving rod and cleaning brush to move horizontally. The cleaning brush cleans the dust, dirt and obstructions on the surface of the reflective warning sign, improving the reflectivity and warning effect of the reflective warning sign. Attached Figure Description
[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0019] In the attached diagram:
[0020] Figure 1 A perspective view of the highway construction protective fence provided in this application;
[0021] Figure 2 A bottom view of the highway construction protective fence provided in this application;
[0022] Figure 3 A partially disassembled structural diagram of the highway construction protective fence provided in this application;
[0023] Figure 4 A split structural diagram of the movable frame of the highway construction protective fence provided in this application;
[0024] Figure 5 The highway construction protective fence provided in this application Figure 3 Enlarged view of point A in the middle.
[0025] In the diagram: 100, fence frame; 110, reflective warning sign; 120, support plate; 130, movable frame; 140, movable plate; 150, rotating shaft; 151, positioning block; 152, turntable; 160, U-shaped plate; 161, rotating rod; 162, inclined plate; 163, conical wheel; 170, rotating rod; 171, worm gear; 200, first mounting bracket; 210, reciprocating screw; 220, threaded seat; 230, movable rod; 240, cleaning brush; 300, second mounting bracket; 310, worm gear; 320, connecting rod. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5A highway construction safety fence includes: a fence frame 100, a first mounting bracket 200, and a second mounting bracket 300. The first mounting bracket 200 supports a reciprocating screw 210, and the second mounting bracket 300 supports a worm gear 310. The first mounting bracket 200 and the second mounting bracket 300 are respectively fixedly connected to the upper ends of the two side walls of the fence frame 100. A reflective warning sign 110 is provided on one side wall of the fence frame 100. A support plate 120 is fixedly connected to the upper end of the side wall of the fence frame 100, and the support plate 120 supports the drive assembly. Multiple sets of U-shaped plates 160 are fixedly connected to the other side wall of the fence frame 100. The U-shaped plates 160 support a rotating rod 161. The rotating rod 161 is rotatably connected to the inner cavity of the U-shaped plate 160, and the rotating rod 161 drives the inclined plate 162 to rotate. The inclined plate 162 is fixedly connected to the outer wall of the rotating rod 161, and the inclined plate 162 supports the fence frame 100. A rotating rod 170 is rotatably connected to one end of the side wall of the first mounting bracket 200 near the U-shaped plate 160. The rotating rod 170 drives the rotating rod 161 to rotate via a transmission component. A worm gear 171 is fixedly connected to the outer side wall of the rotating rod 170. A transmission component for driving the rotating rod 161 to rotate is provided on the rotating rod 170. A reciprocating screw 210 is rotatably connected to the inner cavity of the first mounting bracket 200. A cleaning mechanism is provided on the reciprocating screw 210 to clean the reflective warning sign 110 by rotating it. The inner cavity of the second mounting bracket 300 is rotatably connected to a worm gear 310, which drives the worm wheel 171 and the rotating rod 170 to rotate. The worm gear 310 is meshed with the worm wheel 171. One end of the reciprocating screw 210 and one end of the worm gear 310 are fixedly connected to a connecting rod 320, which drives the reciprocating screw 210 and the worm gear 310 to rotate respectively. The support plate 120 is provided with a drive assembly for driving the connecting rod 320 to rotate.
[0028] Please see Figure 5 The transmission component includes multiple sets of conical wheels 163, which are fixedly connected to one end of the rotating rod 161 and one end of the rotating rod 170, respectively. The two sets of conical wheels 163 mesh with each other. An L-shaped connecting plate for supporting the rotation of the rotating rod 170 is fixedly connected to the side wall of the U-shaped plate 160. The rotating rod 170 drives the rotating rod 161 to rotate through the conical wheels 163.
[0029] Please see Figure 1 and Figure 2 The cleaning components include a movable rod 230 and a cleaning brush 240. The cleaning brush 240 is fixedly connected to the side wall of the movable rod 230. The outer side wall of the reciprocating screw 210 is threadedly connected to a threaded seat 220. The movable rod 230 is fixedly connected to the bottom of the threaded seat 220. The reciprocating screw 210 drives the threaded seat 220 to move horizontally, and the threaded seat 220 drives the movable rod 230 and the cleaning brush 240 to move. The cleaning brush 240 cleans the reflective warning sign 110.
[0030] Please see Figure 3 and Figure 4 The drive assembly includes a movable frame 130, which is slidably disposed on the top of the support plate 120. The inner cavity of the movable frame 130 is provided with a power component that drives the connecting rod 320 to rotate, and the power component is supported by the movable frame 130.
[0031] Please see Figure 3 and Figure 4 The power components include a movable plate 140, a rotating shaft 150, and a positioning block 151. The movable plate 140 is slidably disposed in the inner cavity of the movable frame 130. The rotating shaft 150 is rotatably connected to the side wall of the movable frame 130 through a bearing. The positioning block 151 is fixedly connected to one end of the rotating shaft 150. One end of the connecting rod 320 is provided with a positioning groove that matches the positioning block 151. The rotating shaft 150 drives the positioning block 151 to rotate, and the positioning block 151 drives the connecting rod 320 to rotate through the positioning groove.
[0032] Please see Figure 3 and Figure 4 The other end of the rotating shaft 150 is fixedly connected to a turntable 152 for driving the rotating shaft 150 to rotate, and the rotating shaft 150 is driven to move by the turntable 152.
[0033] Specifically, in use, the movable frame 130 is first moved horizontally, which in turn drives the movable plate 140 to move horizontally. This pushes the movable plate 140, causing the positioning block 151 to move into the positioning groove of the connecting rod 320 on the worm gear 310. Then, the turntable 152 drives the rotating shaft 150 and the positioning block 151 to rotate. The positioning block 151, through the positioning groove, drives the connecting rod 320 and the worm gear 310 to rotate. The worm gear 310 drives the worm wheel 171 to rotate. The rod 170 rotates, and the rotating rod 170 drives the rotating rod 161 and the inclined plate 162 to rotate through the conical wheel 163, so that the inclined plate 162 can be unfolded and retracted. Similarly, by moving the movable frame 130, the positioning block 151 can drive the connecting rod 320 on the reciprocating screw 210 to rotate. The reciprocating screw 210 drives the threaded seat 220, the moving rod 230 and the cleaning brush 240 to move back and forth. The cleaning brush 240 cleans the reflective warning sign 110, thus completing its use.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A protective fence for road construction, characterized in that include: The fence frame (100), the first mounting bracket (200), and the second mounting bracket (300) are respectively fixedly connected to the upper ends of the two side walls of the fence frame (100). A reflective warning sign (110) is provided on one side wall of the fence frame (100). A support plate (120) is fixedly connected to the upper end of the side wall of the fence frame (100). Multiple sets of U-shaped brackets are fixedly connected to the other side wall of the fence frame (100). A plate (160) is provided, and a rotating rod (161) is rotatably connected to the inner cavity of the U-shaped plate (160). An inclined plate (162) is fixedly connected to the outer wall of the rotating rod (161). A rotating rod (170) is rotatably connected to the side wall of the fence frame (100) near the end of the U-shaped plate (160). A worm gear (171) is fixedly connected to the outer wall of the rotating rod (170). A transmission component for driving the rotating rod (161) to rotate is provided on the rotating rod (170). The inner cavity of the first mounting bracket (200) is rotatably connected to a reciprocating screw (210), and the reciprocating screw (210) is provided with a cleaning component that cleans the reflective warning sign (110) by rotating. The inner cavity of the second mounting bracket (300) is rotatably connected to a worm (310), and the worm (310) is meshed with a worm wheel (171). One end of the reciprocating screw (210) and one end of the worm (310) are both fixedly connected to a connecting rod (320). The support plate (120) is provided with a drive assembly for driving the connecting rod (320) to rotate.
2. The highway construction protection fence according to claim 1, characterized in that: The transmission component includes multiple sets of conical wheels (163), which are fixedly connected to one end of the rotating rod (161) and one end of the rotating rod (170), respectively. The two sets of conical wheels (163) mesh with each other. The side wall of the U-shaped plate (160) is fixedly connected to an L-shaped connecting plate for supporting the rotation of the rotating rod (170).
3. The highway construction protection fence according to claim 1, wherein: The cleaning component includes a movable rod (230) and a cleaning brush (240). The cleaning brush (240) is fixedly connected to the side wall of the movable rod (230). The outer side wall of the reciprocating screw (210) is threadedly connected to a threaded seat (220). The movable rod (230) is fixedly connected to the bottom of the threaded seat (220).
4. The highway construction protection fence according to claim 1, wherein: The drive assembly includes a movable frame (130) which is slidably disposed on the top of the support plate (120). The inner cavity of the movable frame (130) is provided with a power component for driving the connecting rod (320) to rotate.
5. The highway construction protection fence according to claim 4, wherein: The power component includes a movable plate (140), a rotating shaft (150), and a positioning block (151). The movable plate (140) is slidably disposed in the inner cavity of the movable frame (130). The rotating shaft (150) is rotatably connected to the side wall of the movable frame (130) through a bearing. The positioning block (151) is fixedly connected to one end of the rotating shaft (150). One end of the connecting rod (320) is provided with a positioning groove that matches the positioning block (151).
6. The highway construction protection fence according to claim 5, wherein: The other end of the rotating shaft (150) is fixedly connected with a rotating disc (152) for driving the rotating shaft (150) to rotate.
Citation Information
Patent Citations
Safety protection fence for highway construction
CN217518369U