A security device for a columnar aperture

By designing a safety protection device for column holes, and using components such as fixing plates, connecting plates, and springs to achieve a stable connection of the protective plates, the problem of easy loosening of the guardrails is solved, the stability and safety of the guardrails are improved, and the construction progress is ensured.

CN224468832UActive Publication Date: 2026-07-07SHANGHAI BAOYE GRP CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI BAOYE GRP CORP
Filing Date
2025-06-23
Publication Date
2026-07-07

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  • Figure CN224468832U_ABST
    Figure CN224468832U_ABST
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Abstract

The utility model relates to the technical field of building engineering safety protection, disclose a column hole safety device, including a plurality of protection board, the outer wall of a plurality of protection board all are fixedly connected with fixed plate no.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering safety protection technology, and in particular to a column hole safety protection device. Background Technology

[0002] In the field of building construction, column holes are quite common, such as those left after the construction of cast-in-place piles or those left on site after the construction of precast pipe piles. If these column holes lack effective protective measures, they can lead to safety accidents such as people accidentally falling or objects accidentally falling in. This not only poses a serious threat to the lives of construction workers but also disrupts the normal progress of construction. Therefore, protective measures for column holes are necessary.

[0003] Safety protection measures primarily function through physical barriers. For example, guardrails, constructed from sturdy materials, form a barrier surrounding the post holes. Appropriate height, spacing, and structural strength are set according to different scenarios. In ordinary building construction, guardrails are at least 1.2 meters high, with post spacing not exceeding 2 meters and two horizontal bars, thus preventing people from accidentally approaching the edge of the post holes and preventing falls. Numerous post holes exist in various construction sites, such as the pile holes for cast-in-place piles in residential construction and the precast pipe pile holes in commercial complex construction. These post holes are present throughout the entire construction process, from foundation construction to main structure construction; safety protection and warning measures cannot be relaxed for a moment.

[0004] In existing technologies, guardrails may tilt, loosen, or even collapse due to factors such as personnel collisions, equipment vibrations, or natural wind forces. If the guardrail is only fixed with simple bolts instead of self-locking buckles, when heavy machinery operates near the post hole, vibrations may cause the bolts to loosen, causing the guardrail to detach from the post, and the barrier that originally prevented falling objects to become ineffective. Therefore, a post hole safety protection device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a safety protection device for post holes, which aims to improve the problems of low stability of guardrails, risk of protective equipment falling off, and easy removal or damage of signs in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A safety protection device for column holes includes multiple protective plates. Each of the protective plates has a fixed plate 1 fixedly connected to its outer wall. Each of the fixed plates 1 has a connecting plate 1 rotatably connected to its inner wall. Each of the fixed plates 1 has a connecting rod 1 rotatably connected to its outer wall. Each of the connecting plates 1 has a sliding rod 1 slidably connected to its inner wall. Each of the fixed plates 1 has a sliding rod 2 slidably connected to its inner wall. Each of the sliding rod 2 has a connecting rod 2 rotatably connected to its outer wall. Each of the sliding rod 2 has a limiting plate slidably connected to its outer wall. Each of the limiting plates 1 has a hollow column fixedly connected to its outer wall. Each of the hollow columns 1 has a spring 1 fixedly connected to its inner wall. A splicing assembly for splicing is installed on the top of each protective plate.

[0008] As a further description of the above technical solution:

[0009] The splicing assembly includes a mounting plate one, the bottom of which is fixedly connected to the top of one of the protective plates. A square box is fixedly connected to the top of the mounting plate one. An L-shaped plate is slidably connected to the inner wall of the square box. A pull rod one is fixedly connected to the top of the L-shaped plate. A spring two is fixedly connected to the inner wall of the square box. A mounting plate two is fixedly connected to the top of the other protective plate. A fixing plate two is rotatably connected to the top of the mounting plate two. A pull rod two is fixedly connected to the outer wall of the fixing plate two. A fixing plate three is fixedly connected to the top of the mounting plate two. A spring three is fixedly connected to the outer wall of the fixing plate three.

[0010] As a further description of the above technical solution:

[0011] Each of the protective plates has a fixed plate four fixedly connected to its outer wall, and each of the fixed plates four has a connecting plate two rotatably connected to its inner wall;

[0012] As a further description of the above technical solution:

[0013] The outer wall of the first connecting rod is rotatably connected to the outer wall of the first sliding rod, and the outer wall of the second connecting rod is rotatably connected to the inner wall of the first connecting plate.

[0014] As a further description of the above technical solution:

[0015] The other spring is fixedly connected to the right end of the sliding rod, and the outer wall of the hollow column is slidably connected to the inner wall of the fixed plate.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the limiting plate is slidably connected to the inner wall of the first fixing plate. The inner wall of the first fixing plate is provided with a sliding groove, and the inner wall of the first connecting plate is also provided with a sliding groove.

[0018] As a further description of the above technical solution:

[0019] The other end of the second spring is fixedly connected to the right end of the L-shaped plate, and the other end of the third spring is fixedly connected to the outer wall of the second fixed plate.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the L-shaped plate engages with the inner wall of the second fixed plate, and the outer wall of the first pull rod is slidably connected to the inner wall of the square box.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the angle of the protective plate is adjusted by the connecting plate and the connecting rod rotatably connected to the fixed plate. The movement of the connecting plate drives the sliding rod to slide the hollow column on the inner wall of the fixed plate. When the hollow column slides to the hole opened in the fixed plate, it is popped out by the internal spring, which achieves the fixing effect. The fixing component can firmly connect the protective plate structure of the protective device, preventing the protective facilities from loosening, shifting or falling due to personnel stepping on them, object collisions or environmental factors, ensuring the continuity of the protective effect, making the protective measures have stronger impact resistance, and preventing the protective failure caused by malicious damage or misoperation.

[0024] 2. In this utility model, the push rod two drives the fixed plate two to rotate, and the pull rod one drives the L-shaped plate to move to the designated position. The pull rod two is released and the fixed plate two is reset by the spring three, so that it engages with the L-shaped plate to achieve the splicing effect. In the column hole safety protection and warning measures, it can be spliced ​​with other protective measures, such as with the surrounding building structure, existing protective facilities or different types of safety components. Through functional complementarity and synergistic protection, the integrity and adaptability of safety protection can be further improved. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a column hole safety protection device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the protective plate of the column hole safety protection device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a fixing plate for a column hole safety protection device proposed in this utility model;

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Protective plate; 2. Fixing plate one; 3. Connecting plate one; 4. Connecting rod one; 5. Sliding rod one; 6. Sliding rod two; 7. Connecting rod two; 8. Limiting plate; 9. Hollow column; 10. Spring one; 11. Mounting plate one; 12. Square box; 13. L-shaped plate; 14. Pull rod one; 15. Spring two; 16. Mounting plate two; 17. Fixing plate two; 18. Pull rod two; 19. Fixing plate three; 20. Spring three; 21. Fixing plate four; 22. Connecting plate two. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a column hole safety protection device, comprising multiple protective plates 1 to provide installation space and stability for subsequent components. Each of the multiple protective plates 1 has a fixed plate 2 fixedly connected to its outer wall, providing an installation position for the fixed plate 2. The fixed plate 2 is fixedly connected via this connection, serving as a basic structure for connecting other components and enhancing the functionality of the protective plate 1. Each of the multiple fixed plates 2 has a connecting plate 3 rotatably connected to its inner wall, providing a rotation fulcrum for the connecting plate 3. The connecting plate 3 can rotate freely via a shaft hole, facilitating adjustment of the angle of the protective plate 1.

[0033] Multiple fixed plates 2 are rotatably connected to connecting rods 4 on their outer walls. The outer walls of fixed plates 2 and connecting rods 4 are rotatably connected, allowing connecting rods 4 to swing around fixed plates 2. Multiple connecting plates 3 are slidably connected to sliding rods 5 on their inner walls. The inner walls of connecting plates 3 provide sliding tracks for sliding rods 5, providing guidance and stability during operation and preventing deviation and shaking. Multiple fixed plates 2 are slidably connected to sliding rods 6 on their inner walls. The inner walls of fixed plates 2 provide sliding space for sliding rods 6. Through hole-shaft cooperation, sliding rods 6 can move horizontally. Multiple sliding rods 26 are rotatably connected to connecting rods 7 on their outer walls. The outer walls of sliding rods 26 provide rotational support for connecting rods 27, allowing connecting rods 27 to swing.

[0034] Multiple sliding rods 6 have slidably connected to limit plates 8 on their outer walls. The outer walls of the sliding rods 6 and the limit plates 8 slide together, allowing the limit plates 8 to move up and down along the sliding rods 6, providing a limiting effect for subsequent components. Hollow columns 9 are fixedly connected to the outer walls of the multiple limit plates 8. The outer walls of the limit plates 8 provide an installation base for the hollow columns 9, providing stability and limiting for the hollow columns 9. Springs 10 are fixedly connected to the inner walls of the multiple hollow columns 9. The inner walls of the hollow columns 9 provide a space for the springs 10. During operation, the springs 10 provide a reset effect for the hollow columns 9. A splicing assembly for splicing is installed on the top of the protective plate 1. The top of the protective plate 1 provides an installation position for the splicing assembly, and the connection between the protective plates 1 is achieved through the splicing assembly.

[0035] Reference Figures 2 to 4 The splicing assembly includes a mounting plate 11, which provides installation space and stability for subsequent components. The bottom of the mounting plate 11 is fixedly connected to the top of one of the protective plates 1. The top of the protective plate 1 provides an installation position for the mounting plate 11 and provides support for the subsequent splicing structure. A square box 12 is fixedly connected to the top of the mounting plate 11, which provides an installation base for the square box 12 and provides stability for the internal components. An L-shaped plate 13 is slidably connected to the inner wall of the square box 12, which provides a sliding track for the L-shaped plate 13 and provides guidance for it.

[0036] A pull rod 14 is fixedly connected to the top of the L-shaped plate 13. The top of the L-shaped plate 13 provides a connection point for the pull rod 14. The fixed connection allows the pull rod 14 to move synchronously with the L-shaped plate 13, facilitating manual control of the sliding of the L-shaped plate 13. A spring 2 15 is fixedly connected to the inner wall of the square box 12. The inner wall of the square box 12 provides a fixed end for the spring 2 15. The spring 2 15 cooperates with the L-shaped plate 13 to provide a restoring force after the L-shaped plate 13 slides, ensuring a stable engagement during splicing. A mounting plate 2 16 is fixedly connected to the top of another protective plate 1. The top of the other protective plate 1 provides an installation position for the mounting plate 2 16, providing installation space for subsequent components. A fixing plate 2 17 is rotatably connected to the top of the mounting plate 2 16. The top of the mounting plate 2 16 provides a rotation fulcrum for the fixing plate 2 17. The fixing plate 2 17 can rotate freely through the shaft hole cooperation.

[0037] A tie rod 18 is fixedly connected to the outer wall of the second fixed plate 17. The outer wall of the second fixed plate 17 provides a connection position for the tie rod 18. The fixed connection allows the tie rod 18 to rotate synchronously with the second fixed plate 17, which facilitates the operation of the angle of the second fixed plate 17. A third fixed plate 19 is fixedly connected to the top of the second mounting plate 16. The top of the second mounting plate 16 provides an installation point for the third fixed plate 19, which provides stability for subsequent components. A third spring 20 is fixedly connected to the outer wall of the third fixed plate 19. The outer wall of the third fixed plate 19 provides fixed support for the third spring 20. The third spring 20 cooperates with the second fixed plate 17 to apply pressure after splicing, which enhances the stability of the connection between the two protective plates 1.

[0038] Reference Figures 2 to 4 Multiple protective plates 1 are fixedly connected to the outer walls of fixed plates 4 21, which provide the installation position and stability for the fixed plates 4 21. Multiple fixed plates 4 21 are rotatably connected to the inner walls of connecting plates 22, which provide the rotation fulcrum for the connecting plates 22. The connecting plates 22 can rotate freely through shaft hole fitting, providing stability for the protective plates 1. The outer wall of connecting rod 1 4 is rotatably connected to the outer wall of sliding rod 1 5, which provides rotational support for connecting rod 1 4. The two are rotatably connected, allowing connecting rod 1 4 to rotate around the sliding rod 5. When rod 5 rotates, the outer wall of connecting rod 7 rotates to connect to the inner wall of connecting plate 3. The inner wall of connecting plate 3 provides a rotation connection point for connecting rod 7. Through the shaft hole fit, connecting rod 7 can rotate freely. When sliding rod 6 moves, it helps to adjust the tilt angle of the protective structure. The other end of spring 10 is fixedly connected to the right end of sliding rod 6. The right end of sliding rod 6 provides a fixing point for spring 10. The other end of spring 10 is fixed to the inner wall of hollow column 9. When subjected to external force, spring 10 is compressed or stretched to buffer the impact on the protective structure and protect the overall stability.

[0039] The outer wall of the hollow column 9 is slidably connected to the inner wall of the fixed plate 2. The inner wall of the fixed plate 2 provides a sliding track for the hollow column 9. Through clearance fit, the hollow column 9 can move along the inner wall of the fixed plate 2. The outer wall of the limiting plate 8 is slidably connected to the inner wall of the fixed plate 2. The inner wall of the fixed plate 2 also provides sliding space and stability for the limiting plate 8, preventing shaking during operation. The inner wall of the fixed plate 2 is provided with a sliding groove, which provides a guide path for the hollow column 9 and the limiting plate 8, ensuring that the components slide in a predetermined direction and preventing movement. To maintain the regularity of the protective structure, the inner wall of the connecting plate 3 is provided with a sliding groove. The sliding groove of the inner wall of the connecting plate 3 provides a sliding channel for the sliding rod 5, allowing the sliding rod 5 to slide within the connecting plate 3, while ensuring structural stability during the sliding process. The other end of the spring 15 is fixedly connected to the right end of the L-shaped plate 13. The right end of the L-shaped plate 13 provides a fixed end for the spring 15. The other end of the spring 15 is fixed to the inner wall of the square box 12. After the L-shaped plate 13 slides, the spring 15 provides a restoring force to assist in the locking and fixing of the protective plate 1 during splicing.

[0040] The other end of spring 3 20 is fixedly connected to the outer wall of fixed plate 2 17. The outer wall of fixed plate 2 17 provides a fixed support point for spring 3 20. The other end of spring 3 20 is fixed to fixed plate 3 19. After the protective plates 1 are spliced, spring 3 20 applies pressure to enhance the stability of the engagement between fixed plate 2 17 and L-shaped plate 13. The outer wall of L-shaped plate 13 engages with the inner wall of fixed plate 2 17. The outer wall of L-shaped plate 13 and the inner wall of fixed plate 2 17 form an engagement structure, so that the two protective plates 1 are locked together to prevent separation and achieve a stable connection of protective plates 1. The outer wall of pull rod 14 is slidably connected to the inner wall of square box 12. The inner wall of square box 12 provides a sliding track for pull rod 14. Through cooperation, pull rod 14 can move inside the box, driving L-shaped plate 13 to slide synchronously, which facilitates the manual operation of splicing and separating of protective plates 1.

[0041] Working principle: When safety protection is required for the column hole, multiple protective plates 1 are unfolded, causing the connecting plate 3 connected to the outer wall of the protective plate 1 to rotate on the inner wall of the fixed plate 2, driving the protective plate 1 to reach 90 degrees. The sliding rod 5 moves in the groove opened on the inner wall of the connecting plate 3, driving the connecting rod 4 to move and support the connecting plate 3. The connecting rod 7, through the movement of the connecting plate 3, drives the sliding rod 6 to slide on the inner wall of the fixed plate 2. When the sliding rod 6 slides, it drives the limiting plate 8 and the hollow column 9 fixed by the limiting plate 8 to slide on the inner wall of the fixed plate 2. When the hollow column 9 reaches the hole opened on the fixed plate 2, the hollow column 9 is popped out by the internal spring 10, achieving the fixing effect.

[0042] When the protective plate 1 needs to be folded and stored, press the hollow column 9 to move the limiting plate 8, compress the internal spring 10, and turn the protective plate 1 to make the connecting plate 3 rotate on the inner wall of the fixed plate 2. The sliding rod 5 drives the connecting rod 4 to rotate, and the connecting rod 7 drives the sliding rod 6 and the hollow column 9 to slide on the inner wall of the fixed plate 2, so that the fixed plate 2 and the connecting plate 3 reach 180 degrees, thereby realizing the folding of multiple protective plates 1.

[0043] When it is necessary to splice the protective plate 1, the pull rod 2 18 at the top of the mounting plate 2 16 is rotated to drive the fixed plate 2 17 to swing, so that the spring 3 20 between the outer wall of the fixed plate 2 17 and the fixed plate 3 19 is compressed and generates elastic force. At the same time, the pull rod 1 14 inside the square box 12 at the top of the mounting plate 11 is pushed, so that the L-shaped plate 13 slides on the inner wall of the square box 12 and stretches the spring 2 15. After aligning it with the rotating fixed plate 2 17 on the mounting plate 2 16 at the top of the other protective plate 1, the fixed plate 2 17 is first released, so that the spring 3 20 at the bottom of the fixed plate 2 17 pushes the fixed plate 2 17 to engage with the L-shaped plate 13. The splicing effect is achieved by releasing the pull rod 1 14. When it is necessary to disassemble the protective plate 1, it is only necessary to push the pull rod 2 18 to drive the fixed plate 2 17 to rotate, so that the fixed plate 2 17 and the L-shaped plate 13 are separated. The L-shaped plate 13 is reset by the elastic force of the spring 2 15, thereby achieving the disassembly effect.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety protection device for column holes, comprising multiple protective plates (1), characterized in that: The outer walls of the multiple protective plates (1) are fixedly connected to a fixing plate (2), the inner walls of the multiple fixing plates (2) are rotatably connected to a connecting plate (3), the outer walls of the multiple fixing plates (2) are rotatably connected to a connecting rod (4), the inner walls of the multiple connecting plates (3) are slidably connected to a sliding rod (5), the inner walls of the multiple fixing plates (2) are slidably connected to a sliding rod (6), the outer walls of the multiple sliding rods (6) are rotatably connected to a connecting rod (7), the outer walls of the multiple sliding rods (6) are slidably connected to a limiting plate (8), the outer walls of the multiple limiting plates (8) are fixedly connected to a hollow column (9), the inner walls of the multiple hollow columns (9) are fixedly connected to a spring (10), and the top of the protective plate (1) is equipped with a splicing assembly for splicing.

2. The safety protection device for column holes according to claim 1, characterized in that: The splicing assembly includes a mounting plate one (11), the bottom end of which is fixedly connected to the top of one of the protective plates (1), a square box (12) is fixedly connected to the top of the mounting plate one (11), an L-shaped plate (13) is slidably connected to the inner wall of the square box (12), a pull rod one (14) is fixedly connected to the top of the L-shaped plate (13), a spring two (15) is fixedly connected to the inner wall of the square box (12), a mounting plate two (16) is fixedly connected to the top of the other protective plate (1), a fixing plate two (17) is rotatably connected to the top of the mounting plate two (16), a pull rod two (18) is fixedly connected to the outer wall of the fixing plate two (17), a fixing plate three (19) is fixedly connected to the top of the mounting plate two (16), and a spring three (20) is fixedly connected to the outer wall of the fixing plate three (19).

3. The safety protection device for column holes according to claim 1, characterized in that: The outer walls of the multiple protective plates (1) are fixedly connected to a fixing plate four (21), and the inner walls of the multiple fixing plates four (21) are rotatably connected to a connecting plate two (22).

4. The safety protection device for column holes according to claim 1, characterized in that: The outer wall of the first connecting rod (4) is rotatably connected to the outer wall of the first sliding rod (5), and the outer wall of the second connecting rod (7) is rotatably connected to the inner wall of the first connecting plate (3).

5. A safety protection device for column holes according to claim 1, characterized in that: The other spring (10) is fixedly connected to the right end of the sliding rod (6), and the outer wall of the hollow column (9) is slidably connected to the inner wall of the fixed plate (2).

6. A safety protection device for column holes according to claim 1, characterized in that: The outer wall of the limiting plate (8) is slidably connected to the inner wall of the fixing plate (2). The inner wall of the fixing plate (2) is provided with a sliding groove, and the inner wall of the connecting plate (3) is provided with a sliding groove.

7. A safety protection device for column holes according to claim 2, characterized in that: The other end of the second spring (15) is fixedly connected to the right end of the L-shaped plate (13), and the other end of the third spring (20) is fixedly connected to the outer wall of the second fixed plate (17).

8. A safety protection device for column holes according to claim 2, characterized in that: The outer wall of the L-shaped plate (13) engages with the inner wall of the second fixed plate (17), and the outer wall of the first pull rod (14) is slidably connected to the inner wall of the square box (12).