An installation structure for protective railings at the edge of a foundation pit

CN224634410UActive Publication Date: 2026-08-14HEBEI RAILWAY CONSTR ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0004]为了解决上述技术问题,本实用新型提供了一种基坑临边防护栏杆安装结构,以解决现有技术中,传统的基坑临边防护栏杆安装繁琐与缺乏警示功能的技术问题

Benefits of technology

[0014]1、本实用新型通过快速安装杆的设置,使得装置能够实现防护栏的快速安装,提升了该装置的安装效率。装置可通过在固定柱的安装槽内设置快速安装杆,且快速安装杆的收缩件能与固定板的导向孔配合,来快速完成防护栏与固定柱的连接提高了该装置在安装便捷性方面的能力。相较于传统防护栏杆复杂的安装方式,节省了人力和时间,满足了施工现场作业的需求。

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Abstract

This utility model provides an installation structure for a protective railing at the edge of a foundation pit, belonging to the technical field of protective railings. It includes a protective railing with symmetrically arranged fixing components at both ends for installing the railing. Each fixing component includes a fixing post and a fixing base plate. The fixing base plate is installed at the bottom of the fixing post, and a pre-embedded base for installing the fixing components is installed at the bottom of the fixing base plate. Two sets of installation slots are provided on the fixing post, each containing a quick-installation rod for rapid installation of the protective railing. Multiple sets of spring components are installed on one side of the protective railing to prevent climbing, and reminder / warning elements are installed on the spring components. A reflective warning strip is installed on the fixing post. This utility model enables rapid installation of the protective railing through the quick-installation rods, improving the installation efficiency of the device. The spring components and reminder elements deter climbing and warn those attempting to climb.
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Description

Technical Field

[0001] This utility model belongs to the field of guardrail technology, and more specifically, it relates to an installation structure for a guardrail at the edge of a foundation pit. Background Technology

[0002] In the field of construction, especially when it comes to foundation pit operations, it is often necessary to use foundation pit edge protection railings to ensure construction safety. For example, in the construction of foundation pits for high-rise buildings and underground parking lots, in order to prevent construction workers from accidentally falling and to prevent objects from falling into the foundation pit, construction teams often install protective railings around the foundation pit. At this time, a foundation pit edge protection railing installation structure is needed to achieve reliable protection of the foundation pit edge and facilitate safe and orderly construction.

[0003] However, traditional pit edge protection railings are cumbersome to install, usually requiring complex assembly operations with the help of various tools, which cannot meet the needs of construction site operations. Secondly, they are not effective in preventing people from climbing. Ordinary railing structures alone are not enough to truly prevent people from climbing. Furthermore, traditional protection railings lack warning functions for climbing behavior. When someone attempts to climb, they cannot issue a warning in time and cannot stop the dangerous behavior in time. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an installation structure for a pit edge protection railing, thereby resolving the issues of cumbersome installation and lack of warning functions in existing traditional pit edge protection railings.

[0005] The purpose and effect of this utility model's installation structure for a protective railing at the edge of a foundation pit are achieved through the following specific technical means:

[0006] An installation structure for a protective railing at the edge of a foundation pit includes a protective railing. Two fixing components for installing the railing are symmetrically arranged at both ends. Each fixing component includes a fixing post and a fixing base plate. The fixing base plate is installed at the bottom of the fixing post, and a pre-embedded base for installing the fixing component is installed at the bottom of the fixing base plate. Two sets of mounting slots are provided on the fixing post, each containing a quick-installation rod for rapid installation of the protective railing. Multiple sets of spring components for preventing climbing are installed on one side of the protective railing, and reminder / warning elements are installed on the spring components. A reflective warning strip is installed on the fixing post.

[0007] According to a preferred embodiment, two sets of fixing plates corresponding to the mounting groove are respectively installed at both ends of the guardrail. The fixing plates are provided with guide holes, and the quick-installation rod passes through the guide holes and is slidably connected to the fixing plates.

[0008] According to a preferred embodiment, the quick-installation rod includes a limiting rod and two sets of retractable components. The limiting rod has two sets of slots symmetrically arranged on it, and the retractable components are respectively engaged in the slots.

[0009] According to a preferred embodiment, the retractable member includes a first spring and two sets of diagonal buckles, which are respectively installed on the top and bottom of the first spring. One side of the diagonal buckle is inclined. The other side of the diagonal buckle at the top of the first spring is provided with a protrusion to prevent the retractable member from slipping. The other side of the diagonal buckle at the bottom of the first spring is provided with a binding groove, and a binding rod is engaged in the binding groove.

[0010] According to a preferred embodiment, the spring members are respectively disposed on one side of the fixed plate. Each spring member includes a mounting bracket and a second spring. The mounting bracket includes a support and a spring plate. One end of the support is mounted on the guardrail and the other end is threadedly connected to the spring plate. One end of the second spring is mounted on the spring plate and the other end is connected to the fixed post.

[0011] According to a preferred embodiment, the reminder includes a limit switch and a buzzer, the limit switch being mounted on the spring plate on one side of the second spring, and the buzzer being mounted on the bottom of the limit switch.

[0012] According to a preferred embodiment, the embedded base and the fixed base plate are symmetrically provided with four sets of threaded holes, and the fixed plate and the embedded base are spirally connected through the threaded holes.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model, through the design of a quick-installation rod, enables the rapid installation of guardrails, improving installation efficiency. The device utilizes a quick-installation rod positioned within the mounting groove of the fixed post, with the retractable part of the rod engaging with the guide hole of the fixing plate to quickly connect the guardrail to the fixed post, thus enhancing the ease of installation. Compared to the complex installation methods of traditional guardrails, this saves manpower and time, meeting the needs of construction site operations.

[0015] 2. When using this device, the spring mechanism prevents personnel from climbing, thus enhancing its anti-climbing performance. The second spring of the spring mechanism works in conjunction with the mounting frame. When someone attempts to climb, the unstable center of gravity pulls the spring, causing the guardrail to slide and making it difficult to climb. If someone forces their way up, the higher they climb, the greater the spring deformation, triggering the limit switch in the warning device, causing the buzzer to sound an audible warning, preventing dangerous behavior and providing timely warnings. This improves the device's reliability in ensuring the safety of construction personnel, avoiding safety accidents caused by personnel climbing, and reducing economic losses and project delays due to insufficient protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is an enlarged view of the quick-installation rod of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the spring component of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 11. Guardrail; 12. Fixed post; 13. Reflective warning strip; 14. Fixed base plate; 15. Buzzer; 16. Embedded base; 17. Limiting rod; 18. First spring; 19. Angled buckle; 21. Restraint rod; 22. Fixed plate; 23. Bracket; 24. Spring plate; 25. Second spring; 26. Limit switch. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0023] Example:

[0024] like Figures 1 to 4As shown, this utility model provides an installation structure for a protective railing at the edge of a foundation pit, including a protective railing 11. The setting of the fixing components provides a stable installation foundation for the protective railing 11, enabling the device to be installed at the edge of the foundation pit and improving its stability. The fixing components include a fixing post 12 and a fixing base plate 14. The fixing base plate 14 is installed at the bottom of the fixing post 12, and a pre-embedded base 16 is installed at its bottom. The device can be pre-buried underground through the pre-embedded base 16, allowing it to remain stable in complex construction sites and improving its ability to resist external impacts.

[0025] Two sets of inclined mounting slots at 4-7 degrees are provided on the fixed column 12. By setting the inclined mounting slots, a certain angle of pre-tightening force can be generated during installation, making it easier for the device to slip when people climb. A quick-installation rod is installed in the slot; the quick-installation rod includes a limiting rod 17 and two sets of retractable parts. Two sets of slots are symmetrically opened on the limiting rod 17, and the retractable parts are locked in the slots. The retractable parts are composed of a first spring 18 and two sets of diagonal buckles 19. The diagonal buckles 19 are respectively installed on the top and bottom of the first spring 18. A protrusion is provided on the other side of the top diagonal buckle 19 of the first spring 18 to prevent the retractable parts from slipping. A restraining groove is opened on the other side of the bottom diagonal buckle 19 and a restraining rod 21 is locked in it, so that the guardrail can be easily pushed to install the retractable parts during installation.

[0026] Two sets of fixing plates 22, corresponding to the inclined mounting slots, are installed at both ends of the guardrail 11. The fixing plates 22 have guide holes with the same inclination of 4-7 degrees. The device can complete the installation of the guardrail 11 by sliding the guide holes of the fixing plates 22 with the quick-installation rod, using the guiding and wedging effect generated by the inclination angle. This allows the device to be erected in a short time and enhances the reliability of the connection.

[0027] Multiple sets of springs are installed on one side of the guardrail 11. These springs obstruct climbing attempts, enhancing the device's anti-climbing performance. Each spring includes a mounting bracket and a second spring 25. The mounting bracket consists of a support 23 and a spring plate 24. One end of the support 23 is mounted on the guardrail 11, and the other end is threaded to the spring plate 24. One end of the second spring 25 is connected to the spring plate 24, and the other end is connected to the fixing post 12. The device uses the elastic resistance of the springs to prevent easy climbing, thus preventing people from climbing over the fence and improving its safety features. The spring force also helps to mitigate impacts from external objects.

[0028] like Figure 4As shown, a warning element is installed on the spring component. This element provides a timely alert when someone climbs on it, enhancing the device's safety at the construction site. The warning element includes a limit switch 26 and a buzzer 15. The limit switch 26 is mounted on the spring plate 24 on one side of the second spring 25, and the buzzer 15 is mounted at the bottom of the limit switch 26. When someone climbs on the spring, the limit switch 26 is triggered, activating the buzzer 15 to sound an alarm. This allows the device to promptly alert those nearby to any abnormal situation, improving its safety warning capabilities.

[0029] like Figure 1 , Figure 2 As shown, a reflective warning strip 13 is installed on the fixed column 12. The reflective warning strip 13 serves as a warning in low-light conditions, improving the device's visibility at night or in low-light environments. The device can reflect light through the reflective warning strip 13 to attract the attention of construction workers, preventing accidental collisions due to poor visibility and improving the device's safety under different lighting conditions.

[0030] Meanwhile, both the embedded base 16 and the fixed base plate 14 have four sets of threaded holes symmetrically arranged on them, and the fixed plate 22 is screwed to the embedded base 16 through the threaded holes. This connection method allows the device to withstand greater external forces. The connection between the fixed plate 22 and the embedded base 16 can be ensured by tightening the screws through the threaded holes, making the device less prone to loosening during long-term use and improving its structural stability.

[0031] The specific usage and function of this embodiment are as follows:

[0032] In actual construction scenarios, when protection of the edge of a foundation pit is required, the first step is to install the pre-embedded base 16. The pre-embedded base 16 is pre-buried underground according to the designed location, providing stable foundation support for the entire guardrail installation structure. The fixed base plate 14 is installed at the bottom of the fixed column 12, and then the fixed column 12 is connected to the pre-embedded base 16 via the fixed base plate 14. This completes the installation of the fixing components, allowing the entire device to be installed at the edge of the foundation pit to withstand the impact of various complex external forces from the construction site.

[0033] Next, install the guardrail 11. Since the fixing post 12 has an inclined mounting groove of 4-7 degrees, and the guide holes on the fixing plates 22 at both ends of the guardrail 11 are also inclined at the same angle, place the quick-installation rod in the mounting groove and align the guide holes of the fixing plates 22 with the quick-installation rod for sliding connection. During installation, the inclined mounting groove and guide holes provide guidance, making installation smoother. Simultaneously, the wedging effect enhances the reliability of the connection. The operator only needs to gently push, and the first spring 18 of the retractable part and the diagonal buckle 19 will cooperate, allowing the guardrail 11 to be installed in place. The entire process can be completed in a short time, improving installation efficiency.

[0034] After installation, the spring on one side of the guardrail 11 begins to function. When someone attempts to climb the guardrail 11, the second spring 25 of the spring generates elastic resistance, hindering the climber and making it difficult for them to climb over, thus enhancing the anti-climbing performance.

[0035] If someone climbs onto and touches the limit switch 26 on the spring component, the limit switch 26 will immediately activate the buzzer 15 to emit a warning sound. This warning sound can promptly alert nearby construction workers to the abnormal situation, so that measures can be taken in time to stop the dangerous behavior, thus better ensuring the safety of the construction site and improving the device's safety early warning capabilities.

[0036] At night or in low-light conditions, the reflective warning strip 13 on the fixed post 12 plays an important role. It can reflect ambient light, attract the attention of construction workers, and thus avoid accidental collisions caused by poor visibility, thereby improving the safety of the device under different lighting conditions.

[0037] Finally, the four sets of threaded holes symmetrically opened on the embedded base 16 and the fixed base plate 14, and the spiral connection between the fixed plate 22 and the embedded base 16 through the threaded holes, provide structural stability for the entire device. During daily use, tightening the screws through the threaded holes ensures the connection between the fixed plate 22 and the embedded base 16, making the device less prone to loosening when subjected to various external forces over a long period of time, and always maintaining a protective state.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A structure for installing a protective railing at the edge of a foundation pit, comprising a protective railing (11), characterized in that: The guardrail (11) is symmetrically provided with fixing components for installing the guardrail (11) at both ends. The fixing components include fixing posts (12) and fixing base plates (14). The fixing base plates (14) are installed at the bottom of the fixing posts (12). The bottom of the fixing base plates (14) is provided with a pre-embedded base (16) for installing the fixing components. The fixed post (12) has two sets of mounting slots, and each mounting slot is equipped with a quick-installation rod for quickly installing the guardrail (11). The guardrail (11) has multiple sets of springs for preventing climbing on one side, and the springs are equipped with reminders for warning. A reflective warning strip (13) is installed on the fixed column (12).

2. The installation structure for a foundation pit edge protection railing according to claim 1, characterized in that: The guardrail (11) has two sets of fixing plates (22) at both ends, which are respectively corresponding to the mounting slot. The fixing plates (22) have guide holes, and the quick-installation rod passes through the guide holes and is slidably connected to the fixing plates (22).

3. The installation structure for a foundation pit edge protection railing according to claim 2, characterized in that: The quick-installation rod includes a limiting rod (17) and two sets of retractable parts. The limiting rod (17) has two sets of slots symmetrically arranged on it, and the retractable parts are respectively locked in the slots.

4. The installation structure for a protective railing at the edge of a foundation pit according to claim 3, characterized in that: The retractable component includes a first spring (18) and two sets of diagonal buckles (19). The diagonal buckles (19) are respectively installed on the top and bottom of the first spring (18). One side of the diagonal buckle (19) is inclined. The other side of the diagonal buckle (19) at the top of the first spring (18) is provided with a protrusion to prevent the retractable component from slipping. The other side of the diagonal buckle (19) at the bottom of the first spring (18) is provided with a binding groove, and a binding rod (21) is locked in the binding groove.

5. The installation structure for a foundation pit edge protection railing according to claim 2, characterized in that: The spring components are respectively disposed on one side of the fixed plate (22). The spring components include a mounting bracket and a second spring (25). The mounting bracket includes a bracket (23) and a spring plate (24). One end of the bracket (23) is installed on the guardrail (11) and the other end is threadedly connected to the spring plate (24). One end of the second spring (25) is installed on the spring plate (24) and the other end is connected to the fixed post (12).

6. The installation structure for a protective railing at the edge of a foundation pit according to claim 5, characterized in that: The reminder includes a limit switch (26) and a buzzer (15). The limit switch (26) is mounted on the spring plate (24) on one side of the second spring (25), and the buzzer (15) is mounted on the bottom of the limit switch (26).

7. The installation structure for a protective railing at the edge of a foundation pit according to claim 2, characterized in that: The embedded base (16) and the fixed base plate (14) are symmetrically provided with four sets of threaded holes, and the fixed plate (22) and the embedded base (16) are spirally connected through the threaded holes.