Multi-purpose three-section adjustable construction guardrail

The multi-purpose, three-section adjustable construction guardrail solves the problem of low matching between steel pipe guardrails and window opening dimensions, enabling convenient installation and efficient transportation, and improving construction safety and efficiency.

CN224338662UActive Publication Date: 2026-06-09THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
Filing Date
2025-07-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing building construction, the length of steel pipe guardrails does not match the size of the window openings on site well, resulting in inadequate protection, material waste, restricted transportation, and complicated and labor-intensive installation.

Method used

The multi-purpose, three-section adjustable construction guardrail consists of a central telescopic steel pipe assembly and symmetrical top support assemblies. It is adjusted using right-angle bolt top supports and rotating screw caps, and positioned using variable-diameter anti-detachment caps, achieving convenient installation and protection.

Benefits of technology

It achieves flexible matching between guardrails and window openings, simplifies the installation process, reduces material waste and manpower consumption, and improves construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

A multipurpose three-section adjustable construction guardrail is a axisymmetric structure, comprising a middle telescopic steel pipe assembly and a top support assembly symmetrically arranged on both sides of the middle telescopic steel pipe assembly, and a right-angle bolt top head assembly is arranged at the end of the top support assembly away from the middle telescopic steel pipe assembly; the middle telescopic steel pipe assembly comprises a steel pipe body, a spring and a through-wire external thread rod, the top support assembly comprises a telescopic steel pipe sealed by a circular steel plate on one side, and a nut adapted to the through-wire external thread rod is arranged in the middle of the circular steel plate; the right-angle bolt top head assembly comprises a screw rod and a rotating wire cap. The application has a larger adjustment range, is convenient for horizontal transfer in a floor when being folded, adopts an adjusting screw to adjust the length, saves installation time, avoids punching, is convenient for installation, does not damage the structure surface on both sides, and has the characteristics of safety and applicability.
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Description

Technical Field

[0001] This application relates to the field of construction safety, specifically to a multi-purpose, three-section adjustable construction safety railing. Background Technology

[0002] For the protection of window openings near the edges, the construction industry currently still mainly uses a combination of steel pipes, fasteners, or end hangers. However, due to the limitation of steel pipe length specifications, there are often discrepancies between the steel pipes and the actual dimensions of the edge on site, resulting in inadequate protection or wasted materials during cutting. At the same time, there are sometimes problems with restricted transportation and high manpower costs within the building.

[0003] Disadvantages of existing publicly available technologies:

[0004] (1) The length of the crossbar of the protective component is constrained by the length of the steel pipe on site, and the matching degree between the steel pipe module and the window opening size is low;

[0005] (2) The pressure is tightened and the friction is used to resist the sudden horizontal force. The pressure and friction are uncontrollable.

[0006] (3) Edge protection needs to be carried out along with the structure construction and exposed to the external environment for a long time. There is a great risk of loosening and failure of the tightening measures;

[0007] (4) Horizontal transfer of long steel pipes within a floor is easily restricted;

[0008] (5) The steel pipes are heavy, and the workload of workers in handling and installing them is large;

[0009] (6) Tightening the U-shaped support thread to adjust the length consumes workers' operating time. Utility Model Content

[0010] The purpose of this utility model is to provide a multi-purpose, three-section adjustable construction guardrail to solve the problems mentioned in the background art.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A multi-purpose three-section adjustable construction guardrail has an axisymmetric structure. Its features include a central telescopic steel pipe assembly and top support assemblies symmetrically arranged on both sides of the central telescopic steel pipe assembly. The end of the top support assembly away from the central telescopic steel pipe assembly is provided with a right-angle bolt top support head assembly.

[0013] The central telescopic steel pipe assembly includes a steel pipe body, a spring, and a threaded rod. The top support assembly includes a telescopic steel pipe sealed on one side by a circular steel plate, and a nut adapted to the threaded rod is provided in the middle of the circular steel plate. The right-angle bolt top support assembly includes a screw and a rotating nut.

[0014] More preferably, the spring and the threaded rod are both built into the steel pipe body, the end of the telescopic steel pipe is inserted into the steel pipe body, the nut is threadedly connected to the threaded rod, and the two ends of the spring abut against the circular steel plates of the two side support assemblies respectively.

[0015] Furthermore, the screw is inserted into the telescopic steel pipe, and the end of the telescopic steel pipe away from the steel pipe body abuts against the rotating screw cap.

[0016] Furthermore, the telescopic steel pipe is provided with a diameter-changing anti-detachment cap, which is threaded to the outer wall of the telescopic steel pipe. The large-diameter opening is set facing the steel pipe body, and the two ends of the steel pipe body are limited to the two diameter-changing anti-detachment caps.

[0017] Furthermore, the steel pipe body is provided with a locking pin in the middle for locking the spring. The locking pin penetrates the steel pipe body vertically and can be freely inserted and removed.

[0018] Furthermore, a top plate is provided at the end of the screw away from the telescopic steel pipe, and a plastic patch is affixed to the top plate.

[0019] Furthermore, an angle iron is provided at the end of the screw away from the telescopic steel pipe, and the angle iron is used to secure the external corners of the buildings on both sides.

[0020] In addition, the guardrails are used for edge protection of door and window openings, scaffolding, and building surfaces.

[0021] More preferably, the spring model is w15x1000mm.

[0022] Compared with the prior art, this utility model has the following features and beneficial effects:

[0023] This application uses a three-section adjustable construction guardrail, which is simple to install and easy to disassemble, avoiding the problem of insufficient horizontal protection of floors during construction and affecting the safety of construction personnel.

[0024] This application offers a wider adjustment range and facilitates horizontal transport within the building when retracted. The adjustable thread reduces installation time, eliminates the need for drilling, and is easy to install. It also causes no damage to the structural surfaces on both sides, making it safe and practical. It has significant promotional and practical value, and its widespread application will generate substantial economic benefits. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a multi-purpose, three-section adjustable construction guardrail structure according to this application;

[0026] Figure 2 This is a schematic diagram of the central telescopic steel pipe assembly involved in this application;

[0027] Figure 3 This is a structural schematic diagram of the support component involved in this application.

[0028] Reference numerals: 1-Central telescopic steel pipe assembly; 11-Steel pipe body; 12-Spring; 13-Threaded rod; 2-Top support assembly; 21-Circular steel plate; 22-Telescopic steel pipe; 23-Nut; 3-Right-angle bolt top support head assembly; 31-Screw; 32-Rotating nut; 4-Top plate; 5-Clamping pin; 6-Variable diameter anti-detachment cap. Detailed Implementation

[0029] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0030] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0031] Example 1

[0032] A multi-purpose, three-section adjustable construction safety railing, such as Figures 1-3 As shown, it is an axisymmetric structure, including a central telescopic steel pipe assembly 1 and top support assemblies 2 symmetrically arranged on both sides of the central telescopic steel pipe assembly 1. The end of the top support assembly 2 away from the central telescopic steel pipe assembly 1 is provided with a right-angle bolt top support head assembly 3.

[0033] The central telescopic steel pipe assembly 1 includes a steel pipe body 11, a spring 12, and a threaded rod 13. The top support assembly 2 includes a telescopic steel pipe 22 sealed on one side by a circular steel plate 21. The circular steel plate 21 has a nut 23 in the middle that is compatible with the threaded rod 13. The right-angle bolt top support assembly 3 includes a screw 31 and a rotating nut 32. The spring 12 and the threaded rod 13 are both built into the steel pipe body 11. The end of the telescopic steel pipe 22 is inserted into the steel pipe body 11. The nut 23 is threadedly connected to the threaded rod 13. The two ends of the spring 12 abut against the circular steel plates 21 on both sides of the top support assembly 2. The screw 31 is inserted into the telescopic steel pipe 22. The end of the telescopic steel pipe 22 away from the steel pipe body 11 abuts against the rotating nut 32.

[0034] The telescopic steel pipe 22 is equipped with a variable diameter anti-detachment cap 6, which is threaded to the outer wall of the telescopic steel pipe 22. The large diameter opening faces the steel pipe body 11, and the two ends of the steel pipe body 11 are confined within the variable diameter anti-detachment caps 6 on both sides. The middle of the steel pipe body 11 is provided with a locking pin 5 for locking the spring 12. The locking pin 5 penetrates the steel pipe body 11 vertically and can be freely inserted and removed. The end of the screw 31 away from the telescopic steel pipe 22 is provided with a top plate 4. The top plate 4 is covered with an anti-slip plastic patch, which can also prevent damage to the wall surface.

[0035] An angle iron is provided at the end of the screw 31 away from the telescopic steel pipe 22. The angle iron is used to secure the external corners of the building on both sides. The guardrail is used for edge protection of door and window openings, scaffolding and building surfaces. As long as the spacing is appropriate, it can form a protective function.

[0036] Example 2

[0037] Based on Embodiment 1, the guardrail includes a three-section adjustable construction guardrail, consisting of a right-angle bolt top support, a 40mm telescopic steel pipe assembly, a 45mm steel pipe telescopic assembly, a built-in W15x1000mm spring, a fixing pin, and a variable-diameter plastic anti-detachment cap, connected by both bolts and welding. The right-angle bolt top support is fitted with a plastic patch to prevent damage to the structural surfaces on both sides; the variable-diameter plastic anti-detachment cap prevents swaying caused by gaps between the large and small steel pipes; the 40mm telescopic steel pipe assembly includes a bolt nut and a 44mm circular steel plate (with an internal 25mm threaded hole); the 45mm steel pipe body includes a built-in 25mm bolt, a built-in W15x1000mm spring, and a fixing pin. Working principle: Adjust the length of the guardrail according to the horizontal protection size of the construction floor, and place the adjustable top support head against the structure on both sides. By rotating the knob support assembly 2 relative to the steel pipe body 11, the two support assemblies 2 are brought closer or further apart. At the same time, the length of the entire device can be finely adjusted by rotating the knob screw cap until the horizontal guardrail is tightly against the structure. Then, tighten the variable diameter anti-detachment cap 6 to position the steel pipe body 11. This solves the problems of low matching degree between the guardrail and the window opening size, limited transfer of steel pipe within the floor, and large weight of protective materials that are difficult to transport in the existing technology. It also optimizes the length adjustment process, making it easier to install and use.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-purpose, three-section adjustable construction guardrail, having an axisymmetric structure, characterized in that: It includes a central telescopic steel pipe assembly (1) and top support assemblies (2) symmetrically arranged on both sides of the central telescopic steel pipe assembly (1). The top support assembly (2) is provided with a right-angle bolt top support head assembly (3) at the end away from the central telescopic steel pipe assembly (1). The central telescopic steel pipe assembly (1) includes a steel pipe body (11), a spring (12) and a threaded rod (13). The top support assembly (2) includes a telescopic steel pipe (22) sealed on one side by a circular steel plate (21). The circular steel plate (21) has a nut (23) in the middle that is compatible with the threaded rod (13). The right-angle bolt top support assembly (3) includes a screw (31) and a rotating nut (32).

2. The multi-purpose three-section adjustable construction guardrail as described in claim 1, characterized in that: The spring (12) and the threaded rod (13) are both built into the steel pipe body (11). The end of the telescopic steel pipe (22) is inserted into the steel pipe body (11), and the nut (23) is threadedly connected to the threaded rod (13). The two ends of the spring (12) abut against the circular steel plates (21) of the two side support components (2).

3. The multi-purpose three-section adjustable construction guardrail as described in claim 1, characterized in that: The screw (31) is inserted into the telescopic steel pipe (22), and the end of the telescopic steel pipe (22) away from the steel pipe body (11) abuts against the rotating screw cap (32).

4. The multi-purpose three-section adjustable construction guardrail as described in claim 1, characterized in that: The telescopic steel pipe (22) is provided with a variable diameter anti-detachment cap (6), which is threaded to the outer wall of the telescopic steel pipe (22). The large diameter opening is set facing the steel pipe body (11), and the ends of both sides of the steel pipe body (11) are limited to the variable diameter anti-detachment caps (6) on both sides.

5. A multi-purpose three-section adjustable construction guardrail as described in claim 2, characterized in that: The steel pipe body (11) is provided with a locking pin (5) in the middle for locking the spring (12). The locking pin (5) penetrates the steel pipe body (11) vertically and can be freely inserted and removed.

6. A multi-purpose three-section adjustable construction guardrail as described in claim 1, characterized in that: The end of the screw (31) away from the telescopic steel pipe (22) is provided with a top plate (4), and a plastic patch is attached to the top plate (4).

7. A multi-purpose three-section adjustable construction guardrail as described in claim 1, characterized in that: An angle iron is provided at the end of the screw (31) away from the telescopic steel pipe (22), and the angle iron is used to secure the external corners of the buildings on both sides.

8. A multi-purpose three-section adjustable construction guardrail as described in claim 1, characterized in that: The guardrails are used for edge protection of door and window openings, scaffolding, and building surfaces.

9. A multi-purpose three-section adjustable construction guardrail as described in any one of claims 1 to 8, characterized in that: The spring model is W15x1000mm.