A building outer periphery reusable telescopic horizontal safety net installation structure

Abstract

The utility model relates to safe net installation technical field discloses a building peripheral turnover telescopic horizontal safe net mounting structure, including mounting frame and connecting plate, one side of mounting frame is provided with mounting structure, the mounting structure includes installation mechanism and auxiliary mechanism, the installation mechanism includes movable plate no.

Description

Technical Field

[0001] This utility model belongs to the field of safety net installation technology, specifically, it relates to a retractable horizontal safety net installation structure for the perimeter of a building. Background Technology

[0002] In the construction process, horizontal safety nets are the core protective facilities to ensure the personal safety of workers at heights and prevent materials from falling and injuring people. They are widely used in the construction of facades of multi-story and high-rise buildings, scaffolding erection and other scenarios.

[0003] Existing horizontal safety nets are mainly divided into two categories: fixed and temporary. Fixed safety nets are mostly connected to the main building by integral welding or multiple sets of bolts. Their span and coverage are fixed during installation, and cannot be flexibly adjusted according to changes in the building's external dimensions. Furthermore, the angle of the horizontal safety net cannot be quickly and conveniently adjusted, thus reducing the work efficiency of the installation structure. Utility Model Content

[0004] The purpose of this utility model is to provide a retractable horizontal safety net installation structure for the perimeter of buildings, so as to solve the problems mentioned in the background art.

[0005] A retractable horizontal safety net installation structure for building perimeter includes a mounting frame and a connecting plate, wherein the mounting frame has an installation structure on one side; The installation structure includes an installation mechanism and an auxiliary mechanism; The installation mechanism includes a movable plate, a rotating rod, an adjusting box, a rotating plate, and a threaded rod. The inner side of the movable plate is rotatably connected to the outer wall of the rotating rod. One end of the rotating rod is connected to one side of the adjusting box, and the other end of the rotating rod is connected to one side of the rotating plate. The inner wall of the rotating plate is threadedly connected to the outer wall of the threaded rod. An adjusting plate is slidably connected to the inner wall of the adjusting box. A connecting rod is fixedly installed on one side of the adjusting plate. A fixing plate is fixedly installed at one end of the connecting rod. A clamp is fixedly installed on one side of the fixing plate. A limit plate is fixedly installed on one side of the adjusting box. A fixing bolt is threadedly connected to the inner wall of the limit plate.

[0006] In a preferred embodiment of this utility model, the movable plate is U-shaped, and there are two adjustment boxes symmetrically distributed on the inner sides of the two movable plates, so that the position of the fixed plate can be adjusted quickly and conveniently, thereby enabling the installation of safety nets of different lengths.

[0007] In a preferred embodiment of this utility model, a limiting hole is provided on one side of the movable plate, and one end of the threaded rod is threadedly connected to the inner wall of the limiting hole. There are two clamps, one of which is connected to one side of the fixed plate, and the other of which is connected to one side of the adjustment box. This allows for the quick and convenient fixing and installation of safety nets of different sizes, thus enabling better use.

[0008] In a preferred embodiment of this utility model, an adjustment hole is provided on one side of the connecting rod, and one end of the fixing bolt is threaded to the inner wall of the adjustment hole, so that the installation angle of the safety net can be adjusted quickly and conveniently, and thus can be better adjusted according to different scenarios.

[0009] In a preferred embodiment of this utility model, the auxiliary mechanism includes a guide rod, a sliding block, a mounting plate, a limiting box, and a limiting rod. The outer wall of the guide rod is slidably connected to the inner wall of the sliding block. One end of the sliding block is connected to one side of the mounting plate. One side of the mounting plate is connected to one end of the limiting box. The inner wall of the limiting box is slidably connected to the outer wall of the limiting rod. A blocking plate is fixedly installed on the outer wall of the limiting rod. A second movable plate is fixedly installed on one side of the mounting plate. The inner side of the second movable plate is movably connected to the inner wall of the bearing plate through a movable pin. A fixing rope is fixedly installed on one side of the bearing plate.

[0010] In a preferred embodiment of this utility model, a sliding groove is provided on one side of the mounting bracket, one end of the sliding block is slidably connected to the inner wall of the sliding groove, a fixing hole is provided on one side of the guide rod, one end of the limiting rod is inserted into the inner wall of the fixing hole, and a spring is fixedly installed between one side of the blocking plate and the inner wall of the limiting box, so that the tension of the fixing rope can be adjusted quickly and conveniently, thereby enabling better installation and use.

[0011] In a preferred embodiment of this utility model, one end of the mounting bracket is connected to one end of the connecting plate, one side of the mounting bracket is connected to one end of the movable plate, and the inner wall of the mounting bracket is connected to both ends of the guide rod.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The retractable horizontal safety net installation structure on the exterior of the building uses an installation mechanism that allows for the adjustment of the clamp spacing through the cooperation of the adjustment plate, connecting rod, and adjustment box. This adapts to horizontal safety nets of different lengths and specifications, solving the problem of traditional fixed safety nets being unable to be extended or adjusted. With the help of the rotating rod, rotating plate, and threaded rod, the adjustment box can be quickly unlocked and rotated, enabling the clamps and safety net to be adjusted at multiple angles, making it suitable for complex construction scenarios such as inclined facades and irregularly shaped buildings.

[0013] 2. The retractable horizontal safety net installation structure on the exterior of the building uses an auxiliary mechanism to fix the ropes, which enhances the overall connection strength of the safety net and effectively intercepts falling materials. The sliding block and guide rod work together to ensure a smooth adjustment process, and the spring-assisted limit rod can quickly position itself. The rope tension can be flexibly adjusted to prevent the net from swaying and improve the reliability of protection.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the installation mechanism of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the diagram; Figure 5 This is a schematic diagram of the auxiliary mechanism of this utility model. Figure 1 ; Figure 6 This is a schematic diagram of the auxiliary mechanism of this utility model. Figure 2 .

[0016] In the diagram: 1. Mounting frame; 2. Connecting plate; 3. Mounting mechanism; 301. Movable plate one; 302. Rotating rod; 303. Adjusting box; 304. Rotating plate; 305. Threaded rod; 306. Adjusting plate; 307. Connecting rod; 308. Fixing plate; 309. Clamp; 310. Limiting plate; 311. Fixing bolt; 4. Auxiliary mechanism; 401. Guide rod; 402. Sliding block; 403. Mounting plate; 404. Limiting box; 405. Limiting rod; 406. Blocking plate; 407. Movable plate two; 408. Bearing plate; 409. Fixing rope. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0018] Example 1: like Figures 1 to 6 As shown, a retractable horizontal safety net installation structure for the perimeter of a building includes a mounting frame 1 and a connecting plate 2, with an installation structure provided on one side of the mounting frame 1; The installation structure includes an installation mechanism 3 and an auxiliary mechanism 4; The mounting mechanism 3 includes a movable plate 301, a rotating rod 302, an adjusting box 303, a rotating plate 304, and a threaded rod 305. The inner side of the movable plate 301 is rotatably connected to the outer wall of the rotating rod 302. One end of the rotating rod 302 is connected to one side of the adjusting box 303, and the other end of the rotating rod 302 is connected to one side of the rotating plate 304. The inner wall of the rotating plate 304 is threadedly connected to the outer wall of the threaded rod 305. An adjusting plate 306 is slidably connected to the inner wall of the adjusting box 303. A connecting rod 307 is fixedly installed on one side of the adjusting plate 306. A fixing plate 308 is fixedly installed on one end of the connecting rod 307. A clamp 309 is fixedly installed on one side of the fixing plate 308. A limit plate 310 is fixedly installed on one side of the adjusting box 303. A fixing bolt 311 is threadedly connected to the inner wall of the limit plate 310. In this embodiment, the movable plate 301 is U-shaped, and there are two adjustment boxes 303. The adjustment boxes 303 are symmetrically distributed on the inner side of the two movable plates 301, so that the position of the fixed plate 308 can be adjusted quickly and conveniently, and thus the safety nets of different lengths can be installed better. Furthermore, a limiting hole is provided on one side of the movable plate 301, and one end of the threaded rod 305 is threadedly connected to the inner wall of the limiting hole. There are two clamps 309. One clamp 309 is connected to one side of the fixed plate 308, and the other clamp 309 is connected to one side of the adjusting box 303. This allows for the quick and convenient fixing and installation of safety nets of different sizes, thus enabling better use. Furthermore, an adjustment hole is provided on one side of the connecting rod 307, and one end of the fixing bolt 311 is threaded to the inner wall of the adjustment hole, so that the installation angle of the safety net can be quickly and conveniently adjusted, and thus better adjusted according to different scenarios.

[0019] Taking the quantitative operation steps of the installation mechanism as an example, for a "3m long horizontal safety net, installed at a 30° angle". Telescopic adjustment: adaptable to 3m long safety nets Unlocking and Adjustment: Loosen the fixing bolt 311 with a 24mm wrench until the torque drops from 30 N·m to 0 N·m. Ensure the bolt is completely disengaged from the connecting rod adjustment hole to observe the side clearance of the adjustment box. Spacing adjustment: Manually pull the fixed plate 308 to move the adjusting plate 306 along the sliding groove of the adjusting box, so that the spacing between the two sets of clamps 309 is adjusted from the initial 2m to 3m. Position it through the adjusting hole of the connecting rod and align it with the second adjusting hole. Locking and fixing: Insert the fixing bolts into the corresponding adjustment holes of the limiting plate and connecting rod, tighten them to 30 N·m with a wrench, and use a tension gauge to check that the clamp spacing deviation is ≤50 mm to ensure that the edge of the safety net can be fully clamped.

[0020] Angle adjustment: Adapts to a 30° inclined facade Unlocking angle: Loosen the threaded rod 305 with a wrench, and fully withdraw it from the first limiting hole of the movable plate by a length ≥30mm. At this time, the rotating plate 304 can be rotated freely. Angle positioning: Manually turn the rotating plate handle to rotate the adjustment box and clamp. Position the angle to 30° by using the scale on the side of the adjustment box in 5° increments. At this point, the safety net is at an angle of 30° to the horizontal plane. Locking angle: Tighten the threaded rod 305 in the reverse direction until the hexagonal head is in contact with the surface of the rotating plate with a torque ≥25N・m. Verify the error with an angle gauge ≤1°. Apply a force of ≤50N to the clamp with a light push. If there is no angular deviation, the locking is qualified.

[0021] Safety net clamping and fixing Place the safety net: Place the edge rope of the horizontal safety net into the clamping slots of the two sets of clamps 309, ensuring that the edge rope is completely in contact with the inner wall of the clamp for a contact length ≥100mm; Pressure clamping: Tighten the clamping bolts with the wrench provided with the clamp until the clamp indicator light illuminates, indicating that the clamping force is ≥1.5kN, or use a tension gauge to check that the clamp is not loose when the tension is ≤1.5kN; Edge verification: Pull along the edge of the safety net with a force of ≤500N. If there is no slippage or displacement, the clamping is qualified, thus preventing the safety net from falling off during high-altitude operations.

[0022] When the safety net needs to be installed, the operator fixes the device to an external object using the mounting bolts on the connecting plate 2, thereby securing the mounting frame 1. The safety net is then fixed in place using the clamp 309. When the position of the clamp 309 needs to be adjusted for different lengths of safety net, the fixing bolt 311 is rotated to move it within the inner wall of the limiting plate 310. This movement of the fixing bolt 311 allows the clamp 309 to be pulled out from one side of the connecting rod 307, thus releasing the limiting fixation on the connecting rod 307. At this point, pulling the fixing plate 308 moves the clamp 309, which in turn moves the connecting rod 307. The movement of the connecting rod 307 then moves the adjusting plate 306 within the adjusting box 303. The wall slides, allowing for quick and easy adjustment of the position of the clamp 309, thus better securing safety nets of different lengths and facilitating extension and retraction. When the angle of the safety net needs adjustment, the threaded rod 305 is rotated to move within the inner wall of the rotating plate 304. The movement of the threaded rod 305 allows it to be pulled out from one side of the movable plate 301, thereby removing the limiting fixation on the rotating rod 302. At this time, rotating the rotating plate 304 drives the rotating rod 302 to rotate, which in turn drives the adjusting box 303 to rotate, which in turn indirectly drives the clamp 309 to rotate. This allows for quick and easy installation of the safety net at different angles, better adapting to different usage scenarios.

[0023] Example 2: Based on Embodiment 1, the auxiliary mechanism 4 includes a guide rod 401, a sliding block 402, a mounting plate 403, a limiting box 404, and a limiting rod 405. The outer wall of the guide rod 401 is slidably connected to the inner wall of the sliding block 402. One end of the sliding block 402 is connected to one side of the mounting plate 403. One side of the mounting plate 403 is connected to one end of the limiting box 404. The inner wall of the limiting box 404 is slidably connected to the outer wall of the limiting rod 405. A blocking plate 406 is fixedly installed on the outer wall of the limiting rod 405. A movable plate 407 is fixedly installed on one side of the mounting plate 403. The inner side of the movable plate 407 is movably connected to the inner wall of the bearing plate 408 through a movable pin. A fixing rope 409 is fixedly installed on one side of the bearing plate 408. In this embodiment, a sliding groove is provided on one side of the mounting bracket 1, one end of the sliding block 402 is slidably connected to the inner wall of the sliding groove, a fixing hole is provided on one side of the guide rod 401, one end of the limiting rod 405 is inserted into the inner wall of the fixing hole, and a spring is fixedly installed between one side of the blocking plate 406 and the inner wall of the limiting box 404, so that the tension of the fixing rope 409 can be adjusted quickly and conveniently, thereby enabling better installation and use; Furthermore, one end of the mounting bracket 1 is connected to one end of the connecting plate 2, one side of the mounting bracket 1 is connected to one end of the movable plate 301, and the inner wall of the mounting bracket 1 is connected to both ends of the guide rod 401.

[0024] The auxiliary mechanism quantifies the operating steps and is used in conjunction with a 3m long safety net. Rope installation and tension adjustment Unlocking the sliding mechanism: Pull the knurled part of the limit rod 405 by hand to overcome the spring force with a force of ≤75N, so that the limit rod completely disengages from the guide rod fixing hole and exits with a length of ≥20mm; Position adjustment: Push the mounting plate 403 to move the sliding block 402 along the guide rod, and move one end of the fixing rope 409 to the center of the safety net, 1.5m above the edge of the safety net; Locking position: Release the limit rod 405, the spring will automatically reset and push the limit rod into the corresponding fixing hole of the guide rod. Gently pull the mounting plate with a force of ≤50N. If there is no displacement, the locking is qualified. Tensioning ropes: Secure the other end of the fixed rope to the embedded part of the building structure with a rope clamp, and tighten the rope with a tensioner model JX-5 to achieve a rope tension of 800-1000N. This tension is then tested with a tension meter to prevent the safety net from swaying due to wind load.

[0025] Rope Angle Adaptive Adjustment Angle adaptation: Based on the safety net installation angle of 30°, the bearing plate 408 rotates with the movable plate 407 through the movable pin, so that the fixing rope naturally fits the top surface of the safety net at an angle ≤10°; Secondary fixing: After the rope is tensioned, tighten the movable pin locking nut with a wrench to a torque of ≥15N・m to ensure that the angle of the bearing plate is fixed and there is no free rotation resistance ≥50N.

[0026] Security verification and maintenance measures: Safety verification methods ensure compliance with GB51249-2017 Construction Safety Code. Clamping reliability verification A horizontal tension of 1.5kN was applied to the clamp to simulate wind load on the safety net. The force was maintained for 5 minutes. The clamp did not loosen and the safety net did not slip. After 50 repeated clamping-unlocking operations, the clamping force decreases by ≤10%, ensuring reliable turnover.

[0027] Angular stability verification When the safety net is installed at a 30° angle, apply 0.5 kN / m. 2 Uniformly distributed load simulates the impact of falling material, with an angle deviation of ≤1° and no loosening of the threaded rod; Simulated high-altitude wind speed of 10m / s, maximum sway of safety net ≤100mm, and no slack in fixing ropes.

[0028] Load-bearing capacity verification A 150kg weight (approximately 1kN) was placed in the center of the safety net and held for 10 minutes. The installation structure showed no deformation and the connectors showed no damage. The rope breaking tensile strength test is ≥5kN, meeting the secondary protection redundancy requirements with a safety factor ≥3.

[0029] When the safety net needs to be installed, the operator fixes the device to an external object using the mounting bolts on the connecting plate 2, thereby fixing the mounting frame 1. The installation mechanism 3 allows for quick and easy installation of the safety net, and it can also quickly and easily install safety nets of different lengths. Furthermore, the angle of the safety net can be quickly and easily adjusted. After installation, installing the fixing rope 409 increases the overall connection strength, thus better intercepting falling objects. When adjustment is needed according to different positions of the fixing plate 308, the limiting rod 405 is pulled to slide against the inner wall of the limiting box 404. The movement of the blocking plate 406 compresses the spring, and the movement of the limiting rod 405 allows it to be pulled out from one side of the guide rod 401, thereby releasing the limiting fixation of the mounting plate 403. At this time, pulling the mounting plate 403 causes the sliding block 402 to slide on the inner wall of the guide rod 401, thereby increasing the stability of the mounting plate 403 during movement. The movement of the mounting plate 403 causes the movable plate 407 to move, and the movement of the movable plate 407 causes one end of the fixed rope 409 to move, thereby adjusting the tension of the fixed rope 409. At the same time, the bearing plate 408 allows one end of the fixed rope 409 to be in a movable state, thus enabling better adjustment.

Claims

1. A retractable horizontal safety net installation structure for building perimeter, comprising a mounting frame (1) and a connecting plate (2), characterized in that: The mounting bracket (1) has a mounting structure on one side; The installation structure includes an installation mechanism (3) and an auxiliary mechanism (4); The installation mechanism (3) includes a movable plate (301), a rotating rod (302), an adjusting box (303), a rotating plate (304), and a threaded rod (305). The inner side of the movable plate (301) is rotatably connected to the outer wall of the rotating rod (302). One end of the rotating rod (302) is connected to one side of the adjusting box (303), and the other end of the rotating rod (302) is connected to one side of the rotating plate (304). The inner wall of the rotating plate (304) is connected to the threaded rod (305). The outer wall is threaded, and the inner wall of the adjusting box (303) is slidably connected to the adjusting plate (306). A connecting rod (307) is fixedly installed on one side of the adjusting plate (306), and a fixing plate (308) is fixedly installed on one end of the connecting rod (307). A clamp (309) is fixedly installed on one side of the fixing plate (308), and a limit plate (310) is fixedly installed on one side of the adjusting box (303). A fixing bolt (311) is threadedly connected to the inner wall of the limit plate (310).

2. The retractable horizontal safety net installation structure for building perimeter as described in claim 1, characterized in that: The movable plate (301) is U-shaped, and there are two regulating boxes (303), which are symmetrically distributed on the inner sides of the two movable plates (301).

3. The retractable horizontal safety net installation structure for building perimeter as described in claim 1, characterized in that: A limiting hole is provided on one side of the movable plate (301), and one end of the threaded rod (305) is threadedly connected to the inner wall of the limiting hole. There are two clamps (309), one clamp (309) is connected to one side of the fixed plate (308), and the other clamp (309) is connected to one side of the adjusting box (303).

4. The retractable horizontal safety net installation structure for building perimeter as described in claim 1, characterized in that: An adjustment hole is provided on one side of the connecting rod (307), and one end of the fixing bolt (311) is threaded to the inner wall of the adjustment hole.

5. The retractable horizontal safety net installation structure for building perimeter as described in claim 1, characterized in that: The auxiliary mechanism (4) includes a guide rod (401), a sliding block (402), a mounting plate (403), a limiting box (404), and a limiting rod (405). The outer wall of the guide rod (401) is slidably connected to the inner wall of the sliding block (402). One end of the sliding block (402) is connected to one side of the mounting plate (403). One side of the mounting plate (403) is connected to one end of the limiting box (404). The inner wall of the limiting box (404) is slidably connected to the outer wall of the limiting rod (405). A blocking plate (406) is fixedly installed on the outer wall of the limiting rod (405). A movable plate two (407) is fixedly installed on one side of the mounting plate (403). The inner side of the movable plate two (407) is movably connected to the inner wall of the bearing plate (408) through a movable pin. A fixing rope (409) is fixedly installed on one side of the bearing plate (408).

6. The retractable horizontal safety net installation structure for building perimeter as described in claim 5, characterized in that: The mounting bracket (1) has a sliding groove on one side, and one end of the sliding block (402) is slidably connected to the inner wall of the sliding groove. The guide rod (401) has a fixing hole on one side, and one end of the limiting rod (405) is inserted into the inner wall of the fixing hole. A spring is fixedly installed between one side of the blocking plate (406) and the inner wall of the limiting box (404).

7. The retractable horizontal safety net installation structure for building perimeter as described in claim 1, characterized in that: One end of the mounting bracket (1) is connected to one end of the connecting plate (2), one side of the mounting bracket (1) is connected to one end of the movable plate (301), and the inner wall of the mounting bracket (1) is connected to both ends of the guide rod (401).

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