A protective device for construction safety.

By using a counterweight box and a hinged protective device, the problem of connecting guardrails on uneven ground is solved, and a stable connection of the protective structure is achieved in different scenarios.

CN224282169UActive Publication Date: 2026-05-26SHENZHEN GENERAL INST OF ARCHITECTURAL DESIGN & RES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN GENERAL INST OF ARCHITECTURAL DESIGN & RES
Filing Date
2025-05-13
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of construction safety technology and discloses a protective device for construction safety, including a guardrail with a counterweight box connected to its lower end and a first placement groove on its side wall; a first connecting block hinged within the first placement groove and having a through hole along its vertical direction; a telescopic connecting assembly hinged to the side wall of the guardrail and positioned opposite to the first connecting block; and a first fastener, connecting the through hole and the telescopic end of the telescopic connecting assembly. During protection, this utility model can improve the adjustability of the protective structure in different scenarios and achieve a stable connection between adjacent guardrails.
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Description

Technical Field

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

[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. Among them, buildings refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, living, learning, and public activities. During the construction process, in order to ensure the safety of the surrounding area, protective devices are generally set up around the building to prevent unauthorized personnel from entering the construction area and to meet the construction protection requirements.

[0003] Patent CN222333421U discloses a construction safety protection device. In use, when connecting the first and second guardrails, the user aligns the fixing block with the inside of the fixing sleeve, and simultaneously slides the protective sleeve to the left, releasing the restraining block from limiting the pressure plate. The user then fully places the fixing block inside the fixing sleeve, and releases the protective sleeve. A spring then presses against the left side of the protective sleeve, causing the sleeve to move the restraining block and press against the pressure plate. The pressure plate then engages a locking block in a slot, securing the fixing block and allowing for quick connection between the first and second guardrails. However, this device has the following drawbacks: it relies primarily on the sliding fit between the fixing sleeve and the fixing block, as well as limiting and positioning components, for connection. This connection method requires high precision in the relative position of adjacent guardrails. When the ground is uneven, there will be a height difference between the first guardrail and the second guardrail. The fixing block may not be able to be accurately aligned with the entrance of the fixing sleeve. Even if it is forced to be inserted, it will affect the normal sliding of the fixing block in the fixing sleeve, making it impossible to complete the subsequent clamping operation smoothly, and making it difficult to connect adjacent guardrails together.

[0004] Therefore, improving the adjustability of the protective structure in different scenarios during the protection process has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a protective device for construction safety in building engineering, so as to overcome the above-mentioned shortcomings.

[0006] To achieve the above objectives, the technical solution of this utility model is: a protective device for construction safety, comprising:

[0007] The guardrail has a counterweight box connected to its lower end and a first placement slot on its side wall;

[0008] The first connecting block is hingedly arranged in the first placement groove and has a through hole along the vertical direction;

[0009] A telescopic connecting assembly, hinged to the side wall of the guardrail, and disposed opposite to the first connecting block; and

[0010] The first fastener connects the through hole and the telescopic end of the telescopic connection assembly.

[0011] Furthermore, a slider is provided at the lower end of the guardrail, and a first sliding groove is provided at the upper end of the counterweight box in the horizontal direction. The slider and the first sliding groove are slidably connected. A plurality of second fasteners are provided on the side wall of the first sliding groove, and the plurality of second fasteners pass through the first sliding groove and are detachably connected to the slider.

[0012] Furthermore, the upper end of the counterweight box is provided with a water inlet pipe, and the opposite side walls of the counterweight box are provided with water outlet pipes. The adjacent water outlet pipes of adjacent counterweight boxes are connected by a flexible hose, and the water outlet pipe of the end counterweight box is provided with a first sealing cap.

[0013] Furthermore, the water inlet pipe is equipped with a second sealing cap.

[0014] Furthermore, the first connecting block is provided with a slot, the slot is connected to the through hole, the side wall of the guardrail is provided with a second placement slot, one end of the telescopic connecting component is hinged in the second placement slot, and the first placement slot and the second placement slot are arranged opposite to each other.

[0015] Furthermore, the telescopic connection assembly includes a second connecting block, an insert block, and a limiting block. One end of the second connecting block is hinged to a second placement groove. A second sliding groove is provided inside the second connecting block, and the second sliding groove and the insert block are slidably connected. A limiting groove is provided at the upper end of the second connecting block in the horizontal direction, and the limiting groove communicates with the second sliding groove. A limiting block is provided at the upper end of the insert block, and the limiting block and the limiting groove are slidably connected. The second connecting block is provided with a connecting hole, and the through hole and the connecting hole are connected by the first fastener.

[0016] Furthermore, a first magnetic block is provided at one end of the insert near the hinge point, and a second magnetic block is provided in the second sliding groove, with the first magnetic block and the second magnetic block arranged opposite to each other.

[0017] Furthermore, each of the opposite sidewalls of the guardrail is provided with several fixing blocks arranged vertically. Each fixing block is provided with a plug-in groove. A connector is provided between adjacent guardrails. Both ends of the connector are fixed with plug-in rods. The plug-in rods and plug-in grooves are slidably engaged. The connector is located below the first connector block.

[0018] Furthermore, both the longitudinal section of the plug rod and the longitudinal section of the plug groove are T-shaped.

[0019] Compared with existing technologies, this invention has at least the following advantages: In use, the counterweight box provides stable foundation support for the guardrail, ensuring the stability of the protective device in various scenarios. When connecting adjacent guardrails, the first connecting block is hinged in the first placement slot. This hinge design provides flexible rotation space; even if uneven ground causes height differences in the guardrails, the first connecting block can rotate to adjust its angle. Simultaneously, the telescopic connecting component is hinged to the side wall of the guardrail and positioned opposite the first connecting block, allowing for adjustment according to the actual height difference. Subsequently, the telescopic end of the telescopic connecting component is connected and fixed to the through hole of the first connecting block using the first fastener. Because both the first connecting block and the telescopic connecting component are flexibly adjustable, even with height differences between guardrails, the connection operation can be successfully completed, avoiding the problem of difficulty in connection due to uneven ground. This significantly improves the adjustability of the protective structure in different scenarios, achieving a stable connection between adjacent guardrails. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the protective device for construction safety of this utility model;

[0022] Figure 2 This is a sectional view of the protective device for construction safety of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of a single protective device of this utility model;

[0024] Figure 4 This is an exploded view of the first connecting block and the telescopic connecting assembly of this utility model;

[0025] Figure 5 This utility model Figure 2 A magnified view of a portion of region A in the middle.

[0026] Reference numerals: 1. Counterweight box; 2. Guardrail; 3. First placement slot; 4. First connecting block; 5. Through hole; 6. First fastener; 7. Sliding block; 8. First sliding groove; 9. Second fastener; 10. Water inlet pipe; 11. Water outlet pipe; 12. Flexible hose; 13. First sealing cover; 14. Second sealing cover; 15. Slot; 16. Second placement slot; 17. Second connecting block; 18. Insertion block; 19. Limiting block; 20. Connecting hole; 21. Second sliding groove; 22. Limiting groove; 23. First magnetic block; 24. Second magnetic block; 25. Fixing block; 26. Insertion slot; 27. Connector; 28. Insertion rod. Detailed Implementation

[0027] 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.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-3 This utility model provides a protective device for construction safety, including a core structure guardrail 2, with a counterweight box 1 connected to its lower end, and a first placement groove 3 provided on the side wall of the guardrail 2; a first connecting block 4 hinged in the first placement groove 3, which has a through hole 5 arranged vertically; a telescopic connecting assembly hinged on the side wall of the guardrail 2, which is arranged opposite to the first connecting block 4; and the through hole 5 and the telescopic end of the telescopic connecting assembly are connected by a first fastener 6, which is a bolt.

[0030] The lower end of the guardrail 2 is provided with a slider 7, and the upper end of the counterweight box 1 is provided with a first sliding groove 8 in the horizontal direction. The slider 7 and the first sliding groove 8 are slidably connected. This sliding connection design greatly facilitates the installation and disassembly of the guardrail 2 and the counterweight box 1. In order to ensure the firmness of the connection, several second fasteners 9 are provided on the side wall of the first sliding groove 8. The second fasteners 9 are bolts. During installation, the slider 7 is aligned with the first sliding groove 8 and inserted. Then, by tightening the second fasteners 9, several second fasteners 9 pass through the first sliding groove 8 and are threadedly connected to the slider 7, thereby realizing a stable connection between the guardrail 2 and the counterweight box 1.

[0031] A water inlet pipe 10 is provided at the upper end of the counterweight box 1, and water outlet pipes 11 are provided on the opposite side walls of the counterweight box 1. The adjacent water outlet pipes 11 of adjacent counterweight boxes 1 are connected by a hose 12. The operator connects the water outlet pipe 11 and the hose 12 with a clamp to facilitate the unified filling of multiple counterweight boxes 1 with water during operation. A first sealing cover 13 is provided on the water outlet pipe 11 of the end counterweight box 1. The water outlet pipe 11 and the first sealing cover 13 are threaded together. When in use, the first sealing cover 13 is closed to prevent water from leaking from the end of the counterweight box 1.

[0032] The water inlet pipe 10 is equipped with a second sealing cover 14. The water inlet pipe 10 and the second sealing cover 14 are threaded together. By opening the second sealing cover 14, the operator can inject water into the counterweight box 1 to increase the weight of the counterweight box 1 and improve the stability of the protective device.

[0033] Reference Figure 4-5 The first connecting block 4 is provided with a slot 15, which is connected to the through hole 5. The side wall of the guardrail 2 is provided with a second placement slot 16. One end of the telescopic connecting component is hinged in the second placement slot 16, and the first placement slot 3 and the second placement slot 16 are arranged opposite to each other.

[0034] The telescopic connection assembly includes a second connecting block 17, an insert block 18, and a limiting block 19. One end of the second connecting block 17 is hinged to the second placement groove 16. A second sliding groove 21 is provided inside the second connecting block 17, and the second sliding groove 21 is slidably connected to the insert block 18. At the same time, a limiting groove 22 is provided at the upper end of the second connecting block 17 in the horizontal direction, and the limiting groove 22 communicates with the second sliding groove 21. A limiting block 19 is provided at the upper end of the insert block 18, and the limiting block 19 is slidably connected to the limiting groove 22. The second connecting block 17 is provided with a connecting hole 20, and the first fastener 6 is connected through the through hole 5 and the connecting hole 20, so that the telescopic connection assembly can be connected to the first connecting block 4.

[0035] The end of the insert 18 near the hinge point is provided with a first magnetic block 23, and the second magnetic block 24 is provided in the second slide groove 21. The first magnetic block 23 and the second magnetic block 24 are arranged opposite to each other. Through magnetic attraction, the insert 18 is not only positioned in the second slide groove 21, but also the displacement of the insert 18 caused by the shaking of the second connecting block 17 is effectively suppressed during the transportation process, so as to prevent it from sliding back and forth in the second slide groove 21.

[0036] Reference Figure 2-3In this device, five fixing blocks 25 are vertically arranged on the opposite side walls of the guardrail 2. The number of fixing blocks 25 is not specifically limited and can be six, seven or more. The fixing blocks 25 are provided with insertion slots 26. Connectors 27 are provided between adjacent guardrails 2. The connectors 27 are chains. Both ends of the connectors 27 are fixed with insertion rods 28. The longitudinal section of the insertion rods 28 and the longitudinal section of the insertion slots 26 are T-shaped. This T-shaped structure allows the insertion rods 28 to slide and engage with the insertion slots 26, thereby connecting adjacent guardrails 2 together. Furthermore, the connectors 27 are located below the first connecting block 4, which can effectively prevent unauthorized personnel from crawling into the construction area between the two guardrails 2.

[0037] The working principle of this utility model is as follows: During use, workers place an appropriate number of counterweight boxes 1 along the construction area, connecting adjacent water outlet pipes 11 of adjacent counterweight boxes 1 via flexible hoses 12. During connection, a clamp is used to secure the interface between the water outlet pipe 11 and the flexible hose 12. A first sealing cap 13 is then placed on the water outlet pipe 11 of the end counterweight box 1. After connection is complete, the second sealing cap 14 of any counterweight box 1 is opened, and water is injected into the counterweight box 1, thus achieving unified water injection into multiple counterweight boxes 1.

[0038] When installing the guardrail 2, align the slider 7 of the guardrail 2 with the first groove 8 and insert it. Tighten the second fastener 9. The second fastener 9 passes through the first groove 8 and is threadedly connected to the slider 7, thereby firmly fixing the guardrail 2 and the counterweight box 1.

[0039] Next, rotate the first connecting block 4 and the second connecting block 17, then move the limiting block 19, and then insert the insert block 18 into the slot 15. Use the first fastener 6 to pass through the through hole 5 and thread it into the connecting hole 20.

[0040] Finally, insert the plug rods 28 at both ends of the connector 27 into the adjacent plug slots 26 of the adjacent guardrail 2 to complete the overall installation.

[0041] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A protective device for construction safety, characterized in that, include: The guardrail (2) has a counterweight box (1) connected to its lower end and a first placement slot (3) provided on its side wall; The first connecting block (4) is hinged in the first placement groove (3) and has a through hole (5) along the vertical direction; A telescopic connecting assembly, hinged to the side wall of the guardrail (2), and disposed opposite to the first connecting block (4); and The first fastener (6) is used to connect the through hole (5) and the telescopic end of the telescopic connection assembly.

2. The construction safety protection device according to claim 1, characterized in that, The lower end of the guardrail (2) is provided with a slider (7), and the upper end of the counterweight box (1) is provided with a first sliding groove (8) in the horizontal direction. The slider (7) and the first sliding groove (8) are slidably connected. The side wall of the first sliding groove (8) is provided with a number of second fasteners (9). The number of second fasteners (9) pass through the first sliding groove (8) and are detachably connected to the slider (7).

3. The construction safety protection device according to claim 2, characterized in that, The upper end of the counterweight box (1) is provided with a water inlet pipe (10), and the opposite side walls of the counterweight box (1) are provided with water outlet pipes (11). The adjacent water outlet pipes (11) of the adjacent counterweight boxes (1) are connected by a flexible hose (12), and the water outlet pipe (11) of the end counterweight box (1) is provided with a first sealing cap (13).

4. The construction safety protection device according to claim 3, characterized in that, The water inlet pipe (10) is equipped with a second sealing cap (14).

5. The construction safety protection device according to claim 1, characterized in that, The first connecting block (4) is provided with a slot (15), the slot (15) is connected to the through hole (5), the side wall of the guardrail (2) is provided with a second placement slot (16), one end of the telescopic connecting component is hinged in the second placement slot (16), and the first placement slot (3) and the second placement slot (16) are arranged opposite to each other.

6. The construction safety protection device according to claim 5, characterized in that, The telescopic connection assembly includes a second connecting block (17), an insert block (18), and a limiting block (19). One end of the second connecting block (17) is hinged to the second placement groove (16). A second sliding groove (21) is provided in the second connecting block (17). The second sliding groove (21) and the insert block (18) are slidably connected. A limiting groove (22) is provided at the upper end of the second connecting block (17) in the horizontal direction. The limiting groove (22) communicates with the second sliding groove (21). A limiting block (19) is provided at the upper end of the insert block (18). The limiting block (19) and the limiting groove (22) are slidably connected. The second connecting block (17) is provided with a connecting hole (20). The through hole (5) and the connecting hole (20) are connected by the first fastener (6).

7. The construction safety protection device according to claim 6, characterized in that, The insert (18) has a first magnetic block (23) at one end near the hinge point, and a second magnetic block (24) is provided in the second groove (21). The first magnetic block (23) and the second magnetic block (24) are arranged opposite to each other.

8. The construction safety protection device according to any one of claims 1 to 7, characterized in that, The opposite sidewalls of the guardrail (2) are each provided with a number of fixing blocks (25) in a vertical direction. The fixing blocks (25) are provided with insertion slots (26). Connectors (27) are provided between adjacent guardrails (2). Both ends of the connectors (27) are fixed with insertion rods (28). The insertion rods (28) and the insertion slots (26) are slidably engaged. The connectors (27) are located below the first connecting block (4).

9. The construction safety protection device according to claim 8, characterized in that, The longitudinal section of the plug rod (28) and the longitudinal section of the plug groove (26) are both T-shaped.