Protective fence for building construction
By introducing structures such as sliding rails, sliding rods, spheres, and limiting frames into construction fences, the problem of fixed fence length is solved, enabling flexible adjustment of fence length, expanding the scope of application, and reducing the difficulty of operation.
Patent Information
- Application Number
- CN202520538838.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The existing construction fences have a fixed length and cannot be adjusted, resulting in limited protective distance and a small scope of application.
A protective fence structure was designed, comprising a mounting post, a slide rail, a sliding rod, a ball, a limiting frame, and a moving wheel. By pushing the mounting post, the sliding rod slides within the slide rail. The combination of the ball and the limiting frame reduces friction, thereby adjusting the fence length. The fence is then fixed in place by the combination of the moving wheel and the threaded rod.
It enables flexible adjustment of the fence protection length to adapt to the protection needs of different areas, expands the scope of application, and reduces the operational difficulty for staff.
Smart Images

Figure CN223937811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a protective fence for building construction. Background Technology
[0002] Protective fences are essential safety facilities in dangerous areas such as construction sites and work sites. They can effectively prevent unauthorized personnel from entering the construction area and avoid accidental injuries caused by personnel accidentally entering. However, due to the heavy weight of the protective fences, it is difficult for workers to move them, which increases the workload of the workers and causes inconvenience.
[0003] Patent document CN217581603U discloses a protective fence for construction, comprising a fence body with a slot at its bottom. A fixed rod is fixedly installed inside the slot. A movable plate and a first spring are sequentially movably fitted onto the outer surface of the fixed rod from top to bottom. A mounting frame is fixedly installed at the bottom of the movable plate. This invention, by setting up a movable plate, a movable wheel, a second spring, and a limiting shaft, allows the movable plate to move up and down along the outer surface of the fixed rod due to the cooperation between the fixed rod and the movable plate. This allows the movable wheel to move to the bottom of the fence body via the mounting frame. At this point, because the second spring is compressed, it applies a spring force to the circular block, which in turn allows the limiting shaft to move to the right via the connecting plate. The cooperation between the limiting shaft and the fence body limits the movement of the movable wheel.
[0004] However, in the aforementioned existing technologies, the current fence length is fixed and cannot be adjusted, resulting in limited protection distance and a small range of applications. Utility Model Content
[0005] The purpose of this utility model is to provide a protective fence for construction, which solves the problem that the current fence has a fixed length and cannot be adjusted, resulting in limited protection distance and a small range of applications.
[0006] To achieve the above objectives, this utility model provides a protective fence for construction, comprising two mounting posts, two moving units, and two protective mechanisms. Each protective mechanism includes multiple blocking units, multiple first fixed rods, and multiple second fixed rods. Each blocking unit includes a sliding rod, a first slide rail, a second slide rail, and multiple spheres. The first slide rail has multiple circularly distributed grooves inside. One end of the sliding rod is fixedly connected to the side of the corresponding mounting post, and the other end of the sliding rod is located inside the first slide rail. The first slide rail and the second slide rail are slidably adapted to each other. The multiple spheres are rotatably adapted to the corresponding circular grooves and are in contact with the sliding rod. The multiple first fixed rods are fixedly connected to the first slide rail, and the multiple second fixed rods are fixedly connected to the second slide rail.
[0007] Each of the blocking units further includes a limiting frame and multiple limiting rods. The limiting frame is disposed at the opening of the first slide rail, and the multiple limiting rods are respectively fixedly connected to the slide rail.
[0008] Each of the blocking units further includes a connecting rod, a sliding plate, and a sliding cylinder. The connecting rod is fixedly connected to the first slide rail and located inside the second slide rail. The sliding cylinder is disposed inside the second slide rail. The sliding plate is slidably adapted to the interior of the sliding cylinder. One end of the connecting rod passes through the sliding cylinder and is fixedly connected to the sliding plate.
[0009] Each of the moving units includes a base plate and multiple moving wheels. The base plate is fixedly connected to the bottom of the corresponding mounting column, and the multiple moving wheels are rotatably connected to the bottom of the base plate.
[0010] Each of the moving units further includes multiple threaded rods, which pass through the base plate respectively.
[0011] This utility model discloses a protective fence for construction. By pushing two mounting posts to move, the sliding rod slides within the first slide rail. Through the cooperation of multiple spheres, the frictional resistance experienced by the sliding rod during movement is reduced, making it easier for workers to change the protective length of the device. Furthermore, when the mounting posts are moved, the first slide rail also slides within the second slide rail, thereby increasing the protective distance of the device. Thus, this device can adjust the protective distance of the fence, adapting to the protection of different areas in construction, and has a wide range of applications. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a cross-sectional view of the entire utility model.
[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.
[0016] Figure 4 This is the utility model Figure 2 Enlarged view of the local structure at point B.
[0017] Figure 5 This is the utility model Figure 3 Enlarged view of the local structure at point C.
[0018] Figure 6 This is a partial structural schematic diagram of the present invention.
[0019] 101-Mounting column, 102-First fixing rod, 103-Second fixing rod, 104-Sliding rod, 105-First slide rail, 106-Second slide rail, 107-Spherical ball, 108-Limiting frame, 109-Limiting rod, 110-Connecting rod, 111-Sliding plate, 112-Sliding cylinder, 113-Base plate, 114-Moving wheel, 115-Threaded rod, 116-Circular groove. Detailed Implementation
[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] Please see Figures 1 to 6 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a cross-sectional view of the entire utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 2 Enlarged view of the local structure at point B. Figure 5 This is the utility model Figure 3 Enlarged view of the local structure at point C. Figure 6 This is a partial structural schematic diagram of the present invention.
[0022] This utility model provides a protective fence for construction, including two mounting posts 101, two moving units, and two protective mechanisms. Each protective mechanism has multiple blocking units, multiple first fixed rods 102, and multiple second fixed rods 103. Each blocking unit includes a sliding rod 104, a first sliding rail 105, a second sliding rail 106, multiple spheres 107, a limiting frame 108, multiple limiting rods 109, a connecting rod 110, a sliding plate 111, and a sliding cylinder 112. Each moving unit includes a base plate 113, multiple moving wheels 114, and multiple threaded rods 115. The interior of the first sliding rail 105 has multiple circular grooves 116 distributed in a ring.
[0023] In this specific embodiment, by pushing the two mounting posts 101 to move, the sliding rod 104 slides within the first slide rail 105. Furthermore, the cooperation of the multiple balls 107 reduces the frictional resistance experienced by the sliding rod 104 during movement, making it easier for workers to adjust the protective length of the device. When the mounting posts 101 are moved, the first slide rail 105 also slides within the second slide rail 106, further increasing the protective distance. Therefore, this device can adjust the length of the fence protection, adapting to different areas during construction and having a wide range of applications. When the sliding rod 104 moves, it is controlled by the limiting frame... The cooperation of 108 and multiple limiting rods 109 prevents the slide rod 104 from disengaging from the first slide rail 105. When the first slide rail 105 slides, it drives the connecting rod 110 to move, and through the cooperation of the sliding plate 111 and the slide cylinder 112, it prevents the first slide rail 105 from disengaging from the second slide rail 106. By pulling the mounting column 101, and with the cooperation of multiple moving wheels 114, the mounting column 101 is moved. When the length of the device is adjusted to a suitable position, multiple threaded rods 115 are inserted into the ground to limit and fix the position of the mounting column 101, preventing the device from undergoing further length adjustment.
[0024] The first slide rail 105 has multiple circular grooves 116 arranged around it. One end of the slide rod 104 is fixedly connected to the side of the corresponding mounting post 101, and the other end of the slide rod 104 is located inside the first slide rail 105. The first slide rail 105 and the second slide rail 106 are slidably adapted to each other. Multiple balls 107 are rotatably adapted to the corresponding circular grooves 116. Multiple balls 107 are in contact with the slide rod 104. Multiple first fixing rods 102 are fixedly connected to the first slide rail 105. Multiple second fixing rods 103 are fixedly connected to the second slide rail 106. By pushing the two mounting posts 101 to move, the sliding rod 104 slides within the first slide rail 105. The cooperation of the multiple spheres 107 reduces the frictional resistance experienced by the sliding rod 104 during movement, making it easier for workers to adjust the protective length of the device. Furthermore, when the mounting posts 101 are moved, the first slide rail 105 slides within the second slide rail 106, further increasing the protective distance. The two protective mechanisms are fixedly connected and symmetrically arranged, allowing the device to adjust the protective length of the fence, adapting to different areas during construction and offering a wide range of applications.
[0025] Secondly, the limiting frame 108 is disposed at the opening of the first slide rail 105, and the plurality of limiting rods 109 are respectively fixedly connected to the slide rod 104. When the slide rod 104 moves, the cooperation of the limiting frame 108 and the plurality of limiting rods 109 can prevent the slide rod 104 from disengaging from the first slide rail 105.
[0026] Meanwhile, the connecting rod 110 is fixedly connected to the first slide rail 105 and located inside the second slide rail 106. The slide cylinder 112 is disposed inside the second slide rail 106, and the sliding plate 111 is slidably adapted to the interior of the slide cylinder 112. One end of the connecting rod 110 passes through the slide cylinder 112 and is fixedly connected to the sliding plate 111. When the first slide rail 105 slides, it drives the connecting rod 110 to move, and through the cooperation of the sliding plate 111 and the slide cylinder 112, it can prevent the first slide rail 105 from disengaging from the second slide rail 106.
[0027] Furthermore, the base plate 113 is fixedly connected to the bottom of the corresponding mounting column 101, and the plurality of movable wheels 114 are rotatably connected to the bottom of the base plate 113. By pulling the mounting column 101, and with the cooperation of the plurality of movable wheels 114, the mounting column 101 is moved.
[0028] Furthermore, multiple threaded rods 115 pass through the base plate 113. When the length of the device is adjusted to a suitable position, the multiple threaded rods 115 are inserted into the ground to limit and fix the position of the mounting post 101, preventing further length adjustment of the device.
[0029] When using the protective fence for construction work according to this utility model, by pushing the two mounting posts 101 to move, the sliding rod 104 slides within the first slide rail 105. Furthermore, through the cooperation of the multiple spheres 107, the frictional resistance experienced by the sliding rod 104 during movement is reduced, making it easier for workers to adjust the protective length of the device. When the mounting posts 101 are moved, the first slide rail 105 also slides within the second slide rail 106, thereby increasing the protective distance. Thus, this device can adjust the protective length of the fence, adapting to different areas during construction and having a wide range of applications. When the sliding rod 104 moves, through… The cooperation of the limiting frame 108 and the multiple limiting rods 109 can prevent the slide rod 104 from disengaging from the first slide rail 105. When the first slide rail 105 slides, it drives the connecting rod 110 to move, and through the cooperation of the sliding plate 111 and the slide cylinder 112, it can prevent the first slide rail 105 from disengaging from the second slide rail 106. By pulling the mounting column 101, and with the cooperation of the multiple moving wheels 114, the mounting column 101 is moved. When the length of the device is adjusted to a suitable position, the multiple threaded rods 115 are inserted into the ground to limit and fix the position of the mounting column 101, thus preventing the device from undergoing further length adjustment.
[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A protective fence for construction work, characterized in that, It includes two mounting posts, two moving units, and two protective mechanisms; Each of the protective mechanisms comprises multiple blocking units, multiple first fixed rods, and multiple second fixed rods. Each blocking unit includes a sliding rod, a first slide rail, a second slide rail, and multiple spheres. The first slide rail has multiple circularly distributed grooves inside. One end of the sliding rod is fixedly connected to the side of the corresponding mounting post, and the other end of the sliding rod is located inside the first slide rail. The first slide rail and the second slide rail are slidably adapted to each other. The multiple spheres are rotatably adapted to the corresponding circular grooves. The multiple spheres are in contact with the sliding rod. The multiple first fixed rods are fixedly connected to the first slide rail, and the multiple second fixed rods are fixedly connected to the second slide rail.
2. The protective fence for construction as described in claim 1, characterized in that, Each of the blocking units further includes a limiting frame and multiple limiting rods. The limiting frame is disposed at the opening of the first slide rail, and the multiple limiting rods are respectively fixedly connected to the slide rail.
3. The protective fence for construction as described in claim 2, characterized in that, Each of the blocking units further includes a connecting rod, a sliding plate, and a sliding cylinder. The connecting rod is fixedly connected to the first slide rail and located inside the second slide rail. The sliding cylinder is disposed inside the second slide rail. The sliding plate is slidably adapted to the interior of the sliding cylinder. One end of the connecting rod passes through the sliding cylinder and is fixedly connected to the sliding plate.
4. The protective fence for construction as described in claim 3, characterized in that, Each of the moving units includes a base plate and a plurality of moving wheels. The base plate is fixedly connected to the bottom of the corresponding mounting column, and the plurality of moving wheels are rotatably connected to the bottom of the base plate.
5. The protective fence for construction as described in claim 4, characterized in that, Each of the moving units also includes a plurality of threaded rods, each of which passes through the base plate.
Citation Information
Patent Citations
Protective fence for building construction
CN217581603U