Folding road construction fence support frame

Abstract

This utility model discloses a foldable road construction fence support frame, comprising several longitudinally arranged support rods. An inverted U-shaped connector is fixed to the top of each support rod. Two symmetrically meshing first incomplete gears are provided within the inverted U-shaped connector. The shafts of the first incomplete gears pass through the side wall of the inverted U-shaped connector and are rotatably connected to it. One end of a connecting rod is fixedly connected to the first incomplete gear, and the other end of the connecting rod is provided with a second incomplete gear. The second incomplete gears of adjacent connecting rods are symmetrically meshed and connected to each other by a connecting piece. The shafts of the second incomplete gears pass through the connecting piece and are rotatably connected to it. When the utility model is unfolded, pulling the two support rods at the ends causes the first incomplete gears to rotate in opposite directions under the thrust, driving the connecting rods to unfold through meshing. The second incomplete gears then rotate in opposite directions, further unfolding all the connecting rods and support rods, thereby expanding the reflective fabric to enclose the road construction site, facilitating rapid deployment.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically a foldable road construction enclosure support frame. Background Technology

[0002] Traditional construction site fences are mostly welded from rigid metal pipes, with a fixed overall volume that cannot be folded. They require a large space in the cargo box of a vehicle for transportation, and installation requires processes such as bolt tightening and bracket assembly. The erection of a single section of fence takes a long time, making it difficult to achieve a rapid response in emergency construction. Utility Model Content

[0003] The purpose of this utility model is to provide a foldable road construction fence support frame, which has the advantages of being foldable, occupying little space, and being easy to deploy quickly, thus solving the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A foldable road construction fence support frame includes several longitudinally arranged support rods. An inverted U-shaped connector is fixed to the top of each support rod. The inverted U-shaped connector contains two symmetrically meshing first incomplete gears. The shafts of the first incomplete gears pass through the side wall of the inverted U-shaped connector and are rotatably connected to it. One end of a connecting rod is fixedly connected to the first incomplete gear, and the other end of the connecting rod is provided with a second incomplete gear. The second incomplete gears of adjacent connecting rods are symmetrically meshed and connected to each other by a connecting piece. The shafts of the second incomplete gears pass through the connecting piece and are rotatably connected to it. Magnetic connectors are provided at the top of the support rods at both ends.

[0006] Preferably, reflective fabric is provided around the outside of all the support rods.

[0007] Preferably, the bottom end of the support rod is provided with casters.

[0008] Preferably, the first incomplete gear, the second incomplete gear, and the connecting rod are made of nylon or polyoxymethylene.

[0009] Preferably, the inverted U-shaped connector and the connecting piece are stainless steel stamping parts.

[0010] Preferably, the magnetic connector uses N35 grade neodymium iron boron permanent magnets.

[0011] Preferably, the reflective fabric is bonded to the support rod.

[0012] Preferably, the reflective fabric is made of polyvinyl chloride reflective film or PU coated fabric.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] When the device is deployed, the operator pulls the two support rods at the end, at which point the casters begin to roll. The first incomplete gear rotates in opposite directions under the action of thrust, and drives the connecting rod to unfold through meshing transmission. The second incomplete gear rotates in opposite directions under the action of thrust, thereby driving all the connecting rods and support rods to unfold, thereby spreading out the reflective fabric and surrounding the road construction site. The device occupies a small volume when folded and is easy to deploy quickly. Attached Figure Description

[0015] Figure 1 This is an isometric view of the overall structure of this utility model in its unfolded state;

[0016] Figure 2 This is an isometric view of the overall structure of this utility model in a contracted state;

[0017] Figure 3 This is a top view of the overall structure of this utility model in its unfolded state;

[0018] Figure 4 This is a top view of the overall structure of this utility model in its contracted state.

[0019] In the diagram: 1. Support rod; 2. Caster wheel; 3. Inverted U-shaped connector; 4. First incomplete gear; 5. Connecting rod; 6. Second incomplete gear; 7. Connecting piece; 8. Magnetic connector; 9. Reflective fabric. 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] To address the issues of large space occupation and inconvenient rapid deployment in existing technologies, the following technical solution is proposed. Please refer to [link / reference needed]. Figure 1-4 ;

[0022] The foldable road construction fence support frame includes several support rods 1, which are arranged longitudinally. The bottom end of the support rod 1 is equipped with casters 2 to facilitate the movement of the support rod 1 on the road surface. The top end of the support rod 1 is fixed with an inverted U-shaped connector 3. The inverted U-shaped connector 3 is provided with two mutually symmetrical and meshing first incomplete gears 4. The shaft of the first incomplete gear 4 passes through the inverted U-shaped connector 3 and is rotatably connected to the inverted U-shaped connector 3.

[0023] One side of the first incomplete gear 4 is fixed to one end of the connecting rod 5. The other end of the connecting rod 5 is provided with a second incomplete gear 6. The second incomplete gears 6 on adjacent connecting rods 5 are symmetrical and mesh with each other. The second incomplete gears 6 are connected to each other by a connecting piece 7. The shaft of the second incomplete gear 6 passes through the connecting piece 7 and is rotatably connected to the connecting piece 7.

[0024] The included angle θ between the first incomplete gear 4 and the connecting rod 5, as well as between the connecting rod 5 and the second incomplete gear 6, is equal. The number of connecting rods 5 varies, and the area of ​​the circular region enclosed by the connecting rods 5 also varies accordingly, as does the included angle θ.

[0025] The top of each support rod 1 located at both ends is fixed with a magnetic connector 8. When the connecting rod 5 extends horizontally until it is fully extended, the two magnetic connectors 8 attract each other, fixing the circle formed by the connecting rod 5. When fully extended, it automatically attracts and locks, eliminating the need for manual pinning. At this time, the connecting rod 5 surrounds the road construction point. Reflective fabric 9 is installed around the outside of all the support rods 1 to increase the visibility of the overall device and make it easier for drivers to notice the road construction point. The reflective fabric 9 is bonded to the support rod 1. When the connecting rod 5 is fully extended, the reflective fabric 9 is also fully extended. When the connecting rod 5 is retracted, the reflective fabric 9 is folded accordingly.

[0026] The first incomplete gear 4, the second incomplete gear 6, and the connecting rod 5 are made of nylon or polyoxymethylene, which are lightweight, have a low coefficient of friction, low noise, and good wear resistance; the inverted U-shaped connector 3 and the connecting piece 7 are stainless steel stampings; the magnetic connector 8 uses N35 grade neodymium iron boron permanent magnets; and the reflective fabric 9 uses polyvinyl chloride reflective film or PU coated fabric.

[0027] Working principle: When the device is deployed, the operator pulls the two support rods 1 at the end. At this time, the universal wheel 2 starts to roll. The first incomplete gear 4 rotates in opposite directions under the action of thrust. Through meshing transmission, it drives the connecting rod 5 to unfold. The second incomplete gear 6 rotates in opposite directions under the action of thrust, thereby driving all the connecting rods 5 and support rods 1 to unfold. This opens up the reflective fabric 9 and surrounds the road construction point. When it is unfolded into place, the magnetic connector 8 automatically attracts and locks.

[0028] 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.

[0029] 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.

Claims

1. A foldable road construction fence support frame, comprising several longitudinally arranged support rods (1), characterized in that, The top of the support rod (1) is fixed with an inverted U-shaped connector (3). The inverted U-shaped connector (3) has two symmetrically meshing first incomplete gears (4). The shaft of the first incomplete gear (4) passes through the side wall of the inverted U-shaped connector (3) and is rotatably connected to it. The first incomplete gear (4) is fixedly connected to one end of the connecting rod (5). The other end of the connecting rod (5) is provided with a second incomplete gear (6). The second incomplete gears (6) of adjacent connecting rods (5) mesh symmetrically. The second incomplete gears (6) are connected to each other by a connecting piece (7). The shaft of the second incomplete gear (6) passes through the connecting piece (7) and is rotatably connected to the connecting piece (7). The top of the support rod (1) at both ends is provided with a magnetic connector (8).

2. The foldable road construction fence support frame according to claim 1, characterized in that, All of the aforementioned support rods (1) are surrounded by reflective fabric (9).

3. The foldable road construction fence support frame according to claim 2, characterized in that, The bottom end of the support rod (1) is provided with a caster wheel (2).

4. The foldable road construction fence support frame according to claim 3, characterized in that, The first incomplete gear (4), the second incomplete gear (6) and the connecting rod (5) are made of nylon or polyoxymethylene.

5. The foldable road construction fence support frame according to claim 4, characterized in that, The inverted U-shaped connector (3) and the connecting piece (7) are stainless steel stamping parts.

6. The foldable road construction fence support frame according to claim 5, characterized in that, The magnetic connector (8) uses N35 grade neodymium iron boron permanent magnets.

7. The foldable road construction fence support frame according to claim 6, characterized in that, The reflective fabric (9) is bonded to the support rod (1).

8. The foldable road construction fence support frame according to claim 7, characterized in that, The reflective fabric (9) is made of polyvinyl chloride reflective film or PU coated fabric.

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