A prefabricated short-range infinitely adjustable guardrail using steel pipes

Abstract

This utility model provides an assembled short-range infinitely adjustable guardrail using steel pipes, belonging to the field of guardrails. It includes a steel pipe, a square steel pipe, an adjustable limiter, and an end limiter. One end of the steel pipe is fitted onto the outside of one end of the square steel pipe. The adjustable limiter is located at one end of the steel pipe, and the steel pipe and square steel pipe are connected via the adjustable limiter. The end limiter is located at the other end of the steel pipe. Small plugs are respectively provided on the end limiter and the square steel pipe, and these plugs are inserted into the wall. The adjustable guardrail of this utility model has a simple assembly and disassembly process, requiring no complex tools, thus improving installation efficiency. By using the adjustable limiter to adjust the length of the entire guardrail, it can be matched to the actual adjacent opening. The guardrail can be reused, saving labor costs.

Description

Technical Field

[0001] This utility model relates to the field of guardrails, and in particular to an assembled short-range infinitely adjustable guardrail using steel pipes. Background Technology

[0002] In standard practice, according to construction specifications, when working near an edge with a fall height of 2m or more above the reference plane, a guardrail should be installed on the exposed side. The spacing between the guardrail posts should not exceed 2m. When the length of the opening near the edge is less than 2m, steel pipes are often used to erect horizontal guardrails, vertical posts, and diagonal braces, or expansion bolts and fasteners are used to horizontally fix the steel pipes to the wall for protection.

[0003] However, the "greedy" approach has the following drawbacks: the erection and dismantling process is cumbersome; the railings being on the ground affects walking safety and subsequent construction; and the expansion bolts need to be removed later. Furthermore, because steel pipes come in various sizes, their compatibility with adjacent openings is poor, requiring considerable time to find suitable pipe lengths, which is labor-intensive and time-consuming.

[0004] Currently, some new approaches exist, but these approaches still have certain limitations. For example, the Chinese patent with publication number CN216305449U still uses a ground-mounted protective facility, and the adjustment method using fixed holes cannot be precisely adjusted. If steel pipes are used, drilling is required, which damages the material. Another example is the Chinese patent with publication number CN221095942U, which cannot utilize on-site steel pipe materials for protection, and using alternative materials would significantly increase costs. Therefore, there is a need for a prefabricated, short-range, infinitely adjustable guardrail using steel pipes to solve the problems of cumbersome assembly and disassembly procedures and poor dimensional matching in traditional methods. Utility Model Content

[0005] The purpose of this utility model is to provide an assembled short-range infinitely adjustable guardrail using steel pipes, thereby solving the existing technical problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An assembled short-range infinitely adjustable guardrail using steel pipes includes a steel pipe, a square steel pipe, an adjustable limiter, and an end limiter. One end of the steel pipe is sleeved on the outside of one end of the square steel pipe. The adjustable limiter is located at one end of the steel pipe, and the steel pipe and the square steel pipe are connected by the adjustable limiter. The end limiter is located at the other end of the steel pipe. Small plugs are respectively provided on the end limiter and the square steel pipe, and the small plugs are inserted into the wall.

[0008] Furthermore, the square steel tube is fitted with limit marks on one end inside the steel tube.

[0009] Furthermore, the adjustable limiter includes a main frame, a nut, and a screw. One end of the main frame is connected to a steel pipe, and a first reserved hole is provided at the top of the main frame. The nut is set at the top of the main frame, and the screw is threadedly connected to the nut. One end of the screw passes through the first reserved hole and abuts against the square steel pipe.

[0010] Furthermore, the main frame is configured as a hollow rectangular structure, and the square steel tube is sleeved inside the main frame.

[0011] Furthermore, the end limiter includes a main sleeve, a nut, and a screw. The main sleeve is fitted onto the end of the steel pipe away from the square steel pipe. A second reserved hole is opened on the top of the main sleeve. The nut is set on the top of the main sleeve. The screw is threadedly connected to the nut, and one end of the screw passes through the first reserved hole and abuts against the steel pipe.

[0012] Furthermore, a third reserved hole is provided on the wall, and the small plug is inserted into the third reserved hole.

[0013] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0014] 1. In terms of work efficiency, the adjustable guardrail of this utility model saves time in finding the precise length of the steel pipe, increases the tolerance for errors in the steel pipe size, and saves time in finding the pipe; secondly, the device is simple and the components are lightweight, realizing prefabricated installation without the need for complicated tools, and can be installed with simple operation, thus improving installation efficiency.

[0015] 2. In terms of cost, the adjustable guardrail designed in this utility model achieves short-range stepless adjustment by making full use of the on-site steel pipes without damaging the materials, without damaging the steel pipe materials or requiring secondary processing, thus saving material costs; secondly, the materials are lightweight and convenient, making them easy to reuse, improving the installation efficiency of the guardrails and saving labor costs.

[0016] 3. The adjustable guardrails designed in this utility model have the following safety features: firstly, they ensure the timeliness and effectiveness of the guardrails, reducing safety hazards; secondly, they reduce the labor intensity of workers, reduce the risk of injury during manual operation, and effectively guarantee the safety of personnel during operation. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the adjustable guardrail of this utility model;

[0018] Figure 2 This is a cross-sectional view of the adjustable limiter of this utility model;

[0019] Figure 3 This is a cross-sectional view of the end limiter of this utility model.

[0020] In the attached diagram, 1-steel pipe, 2-square steel pipe, 3-adjustable limiter, 4-end limiter, 5-extend limit mark, 6-small plug, 7-main frame, 8-nut, 9-nut, 10-main sleeve, 11-wall, 12-third reserved hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of this utility model, and these aspects can be achieved even without these specific details.

[0022] like Figure 1-3 As shown, an assembled short-range infinitely adjustable guardrail using steel pipes includes a steel pipe 1, a square steel pipe 2, an adjustable limiter 3, and an end limiter 4. One end of the steel pipe 1 is sleeved on the outside of one end of the square steel pipe 2. The adjustable limiter 3 is located at one end of the steel pipe 1, and the steel pipe 1 and the square steel pipe 2 are connected by the adjustable limiter 3, which is used to adjust the length of the guardrail. The end limiter 4 is located at the other end of the steel pipe 1. Small plugs 6 are respectively provided on the end limiter 4 and the square steel pipe 2, and the small plugs 6 are inserted into a wall 11. A third pre-drilled hole 12 is provided on the wall 11, and the small plugs 6 are inserted into the third pre-drilled hole 12. In use, the end limiter 4 and the small plugs 6 on the square steel pipe 2 are respectively inserted into the third pre-drilled holes 12 on both sides of the wall 11, and the length of the guardrail is adjusted by the adjustable limiter 3 to meet actual needs.

[0023] In an embodiment of this utility model, the square steel pipe 2, which is fitted inside the steel pipe 1, has a limit mark 5 on one end. The steel pipe 1 adopts a commonly used steel pipe specification on site, and its length is adapted to the width of the protective opening, preferably 300~500mm. The square steel pipe 2 is adapted to the inner diameter of the steel pipe 1. The square steel pipe 2 should be able to be inserted into the steel pipe 1 without significant loosening or falling out. The length inserted into the steel pipe 1 should not be less than 250mm, and the extension limit mark 5 is marked at 250mm.

[0024] like Figure 2As shown, the adjustable limiter 3 includes a main frame 7, a nut 8, and a screw 9. One end of the main frame 7 is connected to the steel pipe 1. A first pre-drilled hole (not shown in the figure) is provided at the top of the main frame 7. The nut 8 is located at the top of the main frame 7 and is fixed to the main frame 7 by welding. The screw 9 is threadedly connected to the nut 8, and one end of the screw 9 passes through the first pre-drilled hole and abuts against the square steel pipe 2. The main frame 7 is a hollow rectangular structure, and the square steel pipe 2 is fitted inside the main frame 7. The square steel pipe 2 is sequentially fitted inside the main frame 7 and the steel pipe 1. When adjusting the length of the guardrail, the screw 9 is loosened and removed. The square steel pipe 2 is moved from inside the steel pipe 1 to a suitable position, and then the screw 9 is tightened to fix the square steel pipe 2.

[0025] like Figure 3 As shown, the end limiter 4 includes a main sleeve 10, a nut 8, and a screw 9. The main sleeve 10 is fitted onto the outer side of the steel pipe 1 away from the square steel pipe 2. A second pre-drilled hole (not shown in the figure) is provided on the top of the main sleeve 10. The nut 8 is located on the top of the main sleeve 10. The screw 9 is threadedly connected to the nut 8, and one end of the screw 9 passes through the first pre-drilled hole and abuts against the steel pipe 1. The steel pipe 1 is fitted inside the main sleeve 10, and the screw 9 is threadedly connected to the nut 8, so that one end of the screw 9 abuts against the steel pipe 1 and fixes it in place.

[0026] This invention effectively utilizes existing steel pipe materials, achieving installation without damaging the steel pipe material or requiring secondary processing through component assembly. The device connects and fixes the pipe, enabling short-range stepless adjustment to precisely fit the dimensions of adjacent openings.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A prefabricated short-range infinitely adjustable guardrail using steel pipes, characterized in that: The system includes a steel pipe (1), a square steel pipe (2), an adjustable limiter (3), and an end limiter (4). One end of the steel pipe (1) is sleeved on the outside of one end of the square steel pipe (2). The adjustable limiter (3) is set at one end of the steel pipe (1). The steel pipe (1) and the square steel pipe (2) are connected by the adjustable limiter (3). The end limiter (4) is set at the other end of the steel pipe (1). Small plugs (6) are respectively provided on the end limiter (4) and the square steel pipe (2). The small plugs (6) are inserted into the wall (11).

2. The assembled short-range non-polar adjustable guardrail using steel pipes according to claim 1, characterized in that: The square steel pipe (2) is fitted with a limit mark (5) on one end inside the steel pipe (1).

3. The short-range poleless adjustable guardrail assembled with steel pipes according to claim 1, characterized in that: The adjustable limiter (3) includes a main frame (7), a nut (8) and a screw (9). One end of the main frame (7) is connected to the steel pipe (1). A first reserved hole is opened at the top of the main frame (7). The nut (8) is set at the top of the main frame (7). The screw (9) is threadedly connected to the nut (8), and one end of the screw (9) passes through the first reserved hole and abuts against the square steel pipe (2).

4. The short-range poleless adjustable guardrail assembled with steel pipes according to claim 3, characterized in that: The main frame (7) is set as a hollow rectangular structure, and the square steel tube (2) is sleeved inside the main frame (7).

5. The short-range poleless adjustable guardrail assembled with steel pipes according to claim 1, characterized in that: The end limiter (4) includes a main sleeve (10), a nut (8) and a screw (9). The main sleeve (10) is sleeved on the end of the steel pipe (1) away from the square steel pipe (2). A second reserved hole is opened on the top of the main sleeve (10). The nut (8) is set on the top of the main sleeve (10). The screw (9) is threadedly connected to the nut (8), and one end of the screw (9) passes through the first reserved hole and abuts against the steel pipe (1).

6. The assembled short-range poleless adjustable guardrail using steel pipes according to claim 1, characterized in that: A third reserved hole (12) is provided on the wall (11), and the small plug (6) is inserted into the third reserved hole (12).

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