A type of easily stored protective fence for road and bridge construction.

Abstract

This utility model relates to the field of road and bridge construction technology, specifically a protective fence for easy storage in road and bridge construction. It includes a fixed base, a sliding block slidably mounted on the inner wall of the fixed base, and support plates fixedly mounted on the outer walls of both ends of the fixed base and the sliding block. A fixed frame is fixedly mounted on the inner wall of the fixed base at the end away from the sliding block. This utility model, through the linkage design of the sliding block and the toothed plate, synchronously drives the winding rod to rotate when the main body of the protective net is unfolded, achieving automatic tensioning of the net. This avoids the lateral compression damage and tangling problems of the main body of the protective net in traditional storage methods. The sliding block drives the sliding frame in a linear push-pull operation with the protective telescopic fence. The reduced volume allows multiple fence units to be stacked or stored side-by-side more efficiently, significantly reducing space occupancy and logistics costs during transportation. It also alleviates storage pressure in warehouses or construction sites and improves the convenience of equipment management.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction technology, specifically to a protective fence for road and bridge construction that is easy to store. Background Technology

[0002] In the field of road and bridge construction technology, protective fences are an essential safety protection facility, mainly used to isolate construction areas, guide traffic flow, and prevent personnel or vehicles from accidentally entering dangerous areas, thereby ensuring the safety and order of the construction site.

[0003] Existing technology, such as the announcement number "CN221073788U", relates to the field of road and bridge construction technology and discloses a protective device for road and bridge construction, including protective plates. An adjusting screw is threaded onto the lower end of each protective plate, and a bracket is sleeved onto the outer side of the adjusting screw. A sliding groove is formed on the side of each protective plate, and a connecting mechanism is provided on the inner side of the sliding groove. A limiting groove is formed at the upper end of each protective plate. This protective device for road and bridge construction consists of five protective plates connected by a connecting mechanism. Each protective plate has a bracket at its bottom. In use, the protective plates are flipped and unfolded along both sides of the connecting plate, and the brackets support the protective plates, providing protection for the construction site. The protective plates can move horizontally along the outer side of the movable plate, adjusting the spacing between them. It is suitable for use in various sizes of road and bridge construction sites. After use, the brackets are flipped to the bottom of the protective plates, and the five protective plates are folded together and connected by magnetic blocks, making the device easier to store.

[0004] However, this protective device has a problem: its large overall size during storage results in significant space consumption during transportation and storage, increasing logistics costs and site management difficulties. This inconvenience is particularly pronounced in scenarios with limited construction sites or requiring frequent relocation, impacting construction efficiency. Therefore, we propose a retractable protective fence for road and bridge construction. Utility Model Content

[0005] The purpose of this invention is to solve the problems of large size, space occupation during storage, and extreme inconvenience in transportation, and to provide a protective fence that is easy to store for road and bridge construction.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A protective fence for easy storage during road and bridge construction includes a fixed base, a sliding seat slidably mounted on the inner wall of the fixed base, support plates fixedly mounted on the outer walls of both ends of the fixed base and the sliding seat, a fixed frame fixedly mounted on the inner wall of the fixed base away from the sliding seat, a sliding frame slidably mounted on the inner wall of the sliding seat, and a retractable protective telescopic fence provided on the inner walls of the fixed frame and the sliding frame, a connecting rod fixedly mounted on the top of the sliding seat, a winding rod rotatably mounted on the outer wall of the fixed frame via a frame block, a protective net body fixedly mounted on the outer wall of the connecting rod and the winding rod, a rotating shaft one fixedly mounted on the bottom of the winding rod, a rotating rod fixedly mounted on the bottom of the fixed base away from the rotating shaft one, a rotating shaft two rotatably mounted on the outer wall of the rotating rod, a transmission bar rotatably mounted on the outer walls of the rotating shaft one and the rotating shaft two, and a toothed plate fixedly mounted on the bottom of the sliding seat.

[0008] Preferably, the side wall of the fixed seat is provided with a sliding groove, the bottom of the slide is provided with an embedding groove, and the inner wall of the slide is provided with a sliding rod, and the sliding rod of the slide is slidably installed on the inner wall of the embedding groove of the slide.

[0009] Preferably, the outer walls of the upper and lower ends of the second rotating shaft are gear-shaped, and the toothed plate has tooth blocks on the side near the second rotating shaft, and the tooth blocks of the toothed plate mesh with the gear shape of the second rotating shaft.

[0010] Preferably, the outer wall of the rotating rod is slidably mounted on the inner wall of the embedded groove of the slide block.

[0011] Preferably, the support plate is provided on both sides, and the height of the support plate is higher than the bottom surface of the slide. The support plates on both sides ensure the stability of the entire structure.

[0012] Preferably, the main body of the protective net is made of woven mesh material, and the surface of the main body of the protective net is provided with reflective warning strips.

[0013] By employing the above technical solution, this utility model provides a protective fence for road and bridge construction that is easy to store. Its beneficial effects are: Through the linkage design of the sliding seat and the toothed plate, this utility model automatically tensions the net by simultaneously driving the winding rod to rotate when the main body of the protective net is unfolded, avoiding the lateral compression damage and tangling problems of the main body of the protective net in traditional storage methods. The sliding seat drives the sliding frame in a linear push-pull operation with the protective telescopic fence. The reduced volume allows multiple fence units to be stacked or stored side-by-side more efficiently, significantly reducing space occupancy and logistics costs during transportation. It also alleviates storage pressure in warehouses or construction sites and improves the convenience of equipment management. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0015] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a bottom view of the overall structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the overall structure in Embodiment 1.

[0018] Figure 4 This is an enlarged schematic diagram of point A in this embodiment.

[0019] In the diagram: 1. Fixed seat; 2. Slide seat; 3. Support plate; 4. Fixed frame; 5. Sliding frame; 6. Protective telescopic fence; 7. Connecting rod; 8. Retracting rod; 9. Main body of protective net; 10. Rotating shaft one; 11. Rotating rod; 12. Rotating shaft two; 13. Transmission bar; 14. Tooth plate. 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] Example 1

[0022] A type of easily stored protective fence for road and bridge construction, such as... Figures 1-4 As shown, the device includes a fixed base 1, a slide block 2 slidably mounted on the inner wall of the fixed base 1, support plates 3 fixedly mounted on the outer walls of both ends of the fixed base 1 and the slide block 2, a fixed frame 4 fixedly mounted on the inner wall of the fixed base 1 away from the slide block 2, a sliding frame 5 slidably mounted on the inner wall of the slide block 2, and retractable protective telescopic fences 6 provided on the inner walls of the fixed frame 4 and the sliding frame 5, a connecting rod 7 fixedly mounted on the top of the slide block 2, a winding rod 8 rotatably mounted on the outer wall of the fixed frame 4 via a frame block, a protective net body 9 fixedly mounted on the outer walls of the connecting rod 7 and the winding rod 8, a rotating shaft 10 fixedly mounted on the bottom of the winding rod 8, a rotating rod 11 fixedly mounted on the bottom of the fixed base 1 away from the rotating shaft 10, a rotating shaft 12 rotatably mounted on the outer wall of the rotating rod 11, a transmission bar 13 rotatably mounted on the outer walls of the rotating shaft 10 and the rotating shaft 12, and a toothed plate 14 fixedly mounted on the bottom of the slide block 2.

[0023] The side wall of the fixed seat 1 is provided with a sliding groove, the bottom of the slide seat 2 is provided with an embedding groove, and the inner wall of the slide seat 2 is provided with a sliding rod, and the sliding rod of the slide seat 2 is slidably installed on the inner wall of the embedding groove of the slide seat 2.

[0024] The upper and lower outer walls of the rotating shaft 12 are gear-shaped. The toothed plate 14 has tooth blocks on the side near the rotating shaft 12, and the tooth blocks of the toothed plate 14 mesh with the gear shape of the rotating shaft 12.

[0025] The outer wall of the rotating rod 11 is slidably mounted on the inner wall of the embedded groove of the slide block 2.

[0026] The support plate 3 is set on both sides, and the height of the support plate 3 is higher than the bottom surface of the slide 2.

[0027] The main body 9 of the protective net is made of woven mesh, and the surface of the main body 9 of the protective net is provided with reflective warning strips.

[0028] This utility model discloses a protective fence for road and bridge construction that is easy to store. When constructing roads or bridges, protective fences are often needed on site. However, existing fences are bulky, take up a lot of space when stored, and are extremely inconvenient to transport. Therefore, after the support plate 3 is placed on the construction site, the slide 2 is pulled outward. The slide 2, together with the sliding frame 5, is pulled outward on the outer wall of the fixed seat 1. The sliding frame 5 drives the protective fence 6 to extend and retract. At the same time, the slide 2 drives the toothed plate 14 to slide outward. The toothed blocks on the toothed plate 14 mesh with the gear-shaped outer wall of the rotating shaft 12, causing the rotating shaft 12, which rotates on the rotating rod 11, to rotate. The rotating shaft 12 drives the transmission bar 13 to roll. The transmission bar 13 drives the rotating shaft 10 on the other side to rotate. The rotating shaft 10 drives the winding rod 8, which rotates on the frame block, to rotate. When the winding rod 8 rotates, it opens the main body 9 of the protective net, which is wound on its outer wall. The slide 2 moves to the top and stops. At this time, the main body 9 of the protective net is also opened to its maximum length. The reflective warning strip on its surface produces a conspicuous reflection under light through the highly reflective material, which effectively enhances the visibility of the fence, reduces the probability of accidentally entering the dangerous area, and thus improves the overall safety protection level of the construction site and avoids accidents.

[0029] When the protective fence needs to be stored, the slide block 2 is pushed inward, and the slide block 2 drives the toothed plate 14 to slide inward. Then the toothed plate 14 repeats the above-mentioned opposite movement state to achieve the effect of rolling the protective net body 9 onto the winding rod 8. Through the linkage design of the slide block 2 and the toothed plate 14, the winding rod 8 is driven to rotate synchronously when the protective net body 9 is unfolded to realize the automatic tensioning of the net body. This avoids the lateral compression damage and net entanglement problems of the protective net body 9 in the traditional storage method. Through the linear operation of the slide block 2 driving the sliding frame 5 and the protective telescopic fence 6 with push and pull, the reduced volume allows multiple fence units to be stacked or stored side by side more efficiently, significantly reducing the space occupation rate and logistics costs during transportation. At the same time, it also reduces the storage pressure of warehouses or construction sites and improves the convenience of equipment management.

[0030] 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.

[0031] 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 easy storage during road and bridge construction, characterized in that: Includes a fixed base (1), a slide (2) slidably mounted on the inner wall of the fixed base (1), support plates (3) fixedly mounted on the outer walls of both ends of the fixed base (1) and the slide (2), a fixed frame (4) fixedly mounted on the inner wall of the fixed base (1) away from the slide (2), a sliding frame (5) slidably mounted on the inner wall of the slide (2), and retractable protective telescopic fences (6) provided on the inner walls of the fixed frame (4) and the sliding frame (5), a connecting rod (7) fixedly mounted on the top of the slide (2), and the outer wall of the fixed frame (4)... A winding rod (8) is rotatably mounted on the wall via a frame block. A protective net body (9) is fixedly mounted on the outer wall of the connecting rod (7) and the winding rod (8). A rotating shaft (10) is fixedly mounted on the bottom of the winding rod (8). A rotating rod (11) is fixedly mounted on the bottom of the fixed seat (1) away from the rotating shaft (10). A rotating shaft (12) is rotatably mounted on the outer wall of the rotating rod (11). A transmission bar (13) is rotatably mounted on the outer walls of the rotating shaft (10) and the rotating shaft (12). A toothed plate (14) is fixedly mounted on the bottom of the slide (2).

2. The easily stored protective fence for road and bridge construction according to claim 1, characterized in that: The side wall of the fixed seat (1) is provided with a sliding groove, the bottom of the slide seat (2) is provided with an embedding groove, and the inner wall of the slide seat (2) is provided with a sliding rod, and the sliding rod of the slide seat (2) is slidably installed on the inner wall of the embedding groove of the slide seat (2).

3. The easily stored protective fence for road and bridge construction according to claim 1, characterized in that: The upper and lower outer walls of the rotating shaft 2 (12) are gear-shaped. The toothed plate (14) has a toothed block on the side close to the rotating shaft 2 (12), and the toothed block of the toothed plate (14) meshes with the gear shape of the rotating shaft 2 (12).

4. The easily stored protective fence for road and bridge construction according to claim 1, characterized in that: The outer wall of the rotating rod (11) is slidably mounted on the inner wall of the embedded groove of the slide block (2).

5. A protective fence for easy storage during road and bridge construction according to claim 4, characterized in that: The support plate (3) is provided on both sides, and the height of the support plate (3) is higher than the bottom surface of the slide (2).

6. A protective fence for easy storage during road and bridge construction according to claim 1, characterized in that: The main body (9) of the protective net is made of woven mesh material, and the surface of the main body (9) of the protective net is provided with reflective warning strips.

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