Safety protection device for high-altitude operation of cantilever steel structure construction

Abstract

The utility model relates to the technical field of construction safety, concretely is a kind of safety protection device for guaranteeing cantilever steel structure construction high-altitude work, including I-beam, the surface of I-beam is slidably connected with anti-falling mechanism, and the anti-falling mechanism includes bottom plate, one end of the bottom plate is fixedly installed with fixed plate, the other end of the bottom plate is slidably connected with sliding plate, the middle part of the bottom plate is rotatably connected with carousel, the middle part of the carousel is equipped with rotary groove, rotary groove is rotatably installed with connecting rod one in the middle part, and one end of connecting rod one is fixedly installed with limit stop. The utility model solves the problem that the traditional high-altitude work protection device is mostly spring trigger locking, when horizontal direction side slip or sudden falling, it is easy to appear locking delay phenomenon due to force direction and trigger mechanism mismatch, leading to falling distance increase, there are many problems in actual use.

Description

Technical Field

[0001] This utility model relates to the field of construction safety technology, specifically a safety protection device for high-altitude operations during the construction of cantilevered steel structures. Background Technology

[0002] Steel structure engineering is receiving increasing attention from the market, especially in building construction and bridge construction. However, there are often significant safety risks associated with working at heights of more than 2 meters with complex shapes, especially for cantilevered high-altitude steel structure construction. Horizontal walkways, hanging cages, scaffolding, and aerial work platforms are usually used as safety protection. In addition, workers will also hang safety ropes to improve safety.

[0003] Traditional high-altitude work safety devices mostly use spring-triggered locking. In the event of horizontal slippage or sudden fall, the mismatch between the force direction and the triggering mechanism can lead to locking delays, increasing the fall distance and presenting numerous shortcomings in practical use. For example, in a sudden fall scenario, the spring force of a spring-triggered device must overcome its own deformation inertia to activate the locking component. When the worker falls at a high speed, the spring's response speed cannot keep up with the changes in the impact force, potentially delaying the contact time between the locking component and the steel structure. This can cause the worker to collide with other components during the fall, resulting in secondary injuries. Furthermore, in low-temperature environments, the spring's elastic coefficient decreases due to the drop in temperature, resulting in insufficient triggering force. This may cause the locking component to fail to fully contact the steel structure, posing a certain safety hazard. Utility Model Content

[0004] One of the technical problems that this application aims to solve is that most traditional high-altitude work safety devices are spring-triggered locking devices. In the event of horizontal slippage or sudden fall, the locking delay is easily caused by the mismatch between the force direction and the triggering mechanism, which leads to an increase in the fall distance and has many shortcomings in actual use.

[0005] To address the aforementioned technical problems, this application provides a safety protection device for high-altitude operations during the construction of cantilevered steel structures. The device includes an I-beam, with a fall-prevention mechanism slidably engaged on its surface. This fall-prevention mechanism includes a base plate, a fixed plate fixedly installed at one end of the base plate, and a sliding plate slidably engaged at the other end. A turntable is rotatably engaged in the middle of the base plate, and a rotating groove is formed in the middle of the turntable. A connecting rod is rotatably mounted in the middle of the rotating groove. A limit plate is fixedly installed at one end of the connecting rod, and a connecting rod is fixedly installed at the other end. A hook is fixedly connected to one end of the connecting rod. A side plate is fixedly installed on one side of the turntable, and a limit screw is threadedly connected to one side of the middle portion of the side plate.

[0006] In some embodiments, the fall arrestor is provided with grooves at the top and bottom of the middle of one side, and sliders are fixedly installed at the top and bottom of the middle of one side of the sliding plate, with the sliders and grooves slidably engaged.

[0007] In some embodiments, a lead screw is rotatably mounted in the middle of one of the slides, and an actuating disk is fixedly mounted at one end of the lead screw. The lead screw and one of the sliders of the sliding plate are threadedly connected.

[0008] In some embodiments, a slide rod is fixedly installed in the middle of another slide groove, the slide rod is slidably engaged with the middle of another slider of the slide plate, and a plurality of rotating wheels are evenly provided in the middle of the other side of the fixed plate and the slide plate, the rotating wheels being slidably engaged with both sides of one end of the I-shaped steel.

[0009] In some embodiments, the limiting plate at one end of the connecting rod moves away from the inner wall of the I-beam when the connecting rod approaches the bottom plate, and the limiting plate at one end of the connecting rod abuts against the inner wall of the I-beam when the bottom plate moves away from the bottom plate.

[0010] In some embodiments, one end of the limiting screw abuts against the surface of the base plate.

[0011] This utility model has at least the following beneficial effects:

[0012] 1. This utility model is safe and reliable in multiple scenarios. When working on a cantilevered steel structure at height, whether climbing vertically or moving horizontally, it can achieve precise response through the linkage mechanism composed of linkage one and linkage two. It slides smoothly during normal operation. In case of fall or side slip, the corner of the fixed plate and sliding plate quickly forms a mechanical lock. Combined with the fixing effect of the limit screw, it can comprehensively protect the safety of workers working at height.

[0013] 2. This utility model is highly adaptable and easy to install. By rotating the dial to drive the screw rod to adjust the distance between the sliding plate and the fixed plate, it can adapt to I-beams of different specifications. The installation process does not require complicated tools, and the operation is simple and efficient. It can quickly complete the installation and fixing on the surface of various I-beams, and has high practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the fall protection mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram showing the connection relationship between the base plate and the sliding plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the turntable of this utility model.

[0018] In the diagram: 1. I-beam; 2. Fall arrest mechanism; 20. Rotating groove; 21. Base plate; 22. Fixed plate; 23. Sliding plate; 24. Rotating wheel; 25. Turntable; 26. Link 1; 27. Limiting plate; 28. Link 2; 29. ​​Hook; 30. Side plate; 31. Limiting screw; 32. Sliding block; 33. Slide groove; 34. Lead screw; 35. Slide rod; 36. Actuating disc. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a safety protection device for high-altitude operations during the construction of cantilevered steel structures, comprising an I-beam 1, with a fall protection mechanism 2 slidably engaged on the surface of the I-beam 1. The fall protection mechanism 2 includes a base plate 21, with a fixing plate 22 fixedly installed at one end of the base plate 21, and a sliding plate 23 slidably engaged at the other end of the base plate 21. A turntable 25 is rotatably engaged in the middle of the base plate 21, and a rotation groove 20 is formed in the middle of the turntable 25. A connecting rod 26 is rotatably installed in the middle of the rotation groove 20, with one end of the connecting rod 26 fixed... A limiting plate 27 is installed, and a connecting rod 28 is fixedly installed at the other end of the connecting rod 1 26. A hook 29 is fixedly connected to one end of the connecting rod 28. A side plate 30 is fixedly installed on one side of the turntable 25. A limiting screw 31 is threadedly connected to one side of the middle part of the side plate 30. When the connecting rod 28 is close to the bottom plate 21, the limiting plate 27 at the end of the connecting rod 1 26 moves away from the inner wall of the I-shaped steel 1. When the bottom plate 21 moves away from the bottom plate 21, the limiting plate 27 at the end of the connecting rod 1 26 abuts against the inner wall of the I-shaped steel 1. One end of the limiting screw 31 abuts against the surface of the bottom plate 21.

[0021] In this embodiment, when performing high-altitude work on a vertically cantilevered steel structure, the worker's safety harness is connected to the hook 29 of the fall arrest mechanism 2. As the worker climbs upward along the vertical steel structure, the second connecting rod 28, driven by the hook lock, will approach the surface of the base plate 21, while the limiting plate 27 at the end of the first connecting rod 26 will move away from the I-beam 1. At this time, the entire fall arrest mechanism 2 can smoothly slide upward along the I-beam 1. In the event of a worker's fall, the safety harness will also move downward with the body and, through the hook 29, pull the second connecting rod 28 away from the base plate 21, causing the second connecting rod 28 to move away from the base plate 21. The limiting plate 27 at the end of the first connecting rod 26 will firmly abut against the inner wall of the I-shaped steel 1, forming a stable mechanical lock with the corner of the fixed plate 22 and the sliding plate 23, preventing the fall arrest mechanism 2 and the connected workers from continuing to slip, thus eliminating the risk of falling from the structure. The user can also adjust the angle of the turntable 25, for example, moving the internal linkage mechanism composed of the second connecting rod 28 and the first connecting rod 26 to a position parallel to the base plate 21, thus making it suitable for horizontal steel structure operations. The limiting screw 31 is threadedly connected to the side plate 30, and the screw can be tightened to abut against the surface of the base plate 21 to prevent the linkage structure from accidentally loosening due to vibration during operation, ensuring the stability of the limiting state.

[0022] Example 2: Figures 1-3 As shown, the fall arrestor 2 has grooves 33 on both the upper and lower sides of the middle of one side. The sliding plate 23 has sliders 32 fixedly installed on both the upper and lower sides of the middle of one side. The sliders 32 and the grooves 33 are slidably engaged. A lead screw 34 is rotatably installed in the middle of one of the grooves 33. A dial 36 is fixedly installed at one end of the lead screw 34. The lead screw 34 is threadedly connected to one of the sliders 32 of the sliding plate 23. A sliding rod 35 is fixedly installed in the middle of the other groove 33. The sliding rod 35 is slidably engaged in the middle of the other slider 32 of the sliding plate 23. Multiple rotating wheels 24 are evenly arranged in the middle of the other side of the fixed plate 22 and the sliding plate 23. The rotating wheels 24 are slidably engaged in the two sides of one end of the I-beam 1.

[0023] In this embodiment, rotating the dial 36 drives the lead screw 34 to rotate, which in turn drives the sliding plate 23 to move smoothly along the slide groove 33. The slide rod 35 restricts the offset of the sliding plate 23, ensuring that the sliding plate 23 remains parallel to the base plate 21 during the adjustment process, avoiding jamming due to uneven force, thus adapting to I-beams 1 of different specifications. Multiple rotating wheels 24 on the other side of the fixed plate 22 and the sliding plate 23 slide and engage with the two sides of the end of the I-beam 1, which can convert the sliding friction between the mechanism and the I-beam 1 into rolling friction, greatly reducing the resistance during movement, allowing the user to easily move along the length of the I-beam 1, reducing physical exertion. The threaded connection between the lead screw 34 and the slider 32 has a self-locking function: after adjustment, the lead screw 34 will not rotate automatically due to external force, which can ensure that the position of the sliding plate 23 is fixed, avoiding the mechanism from loosening due to unexpected changes in the distance between the fixed plate 22 and the sliding plate 23.

[0024] like Figures 1-4As shown, when carrying out high-altitude operations for cantilever steel structure construction, the fall protection mechanism 2 is first installed on the surface of the I-beam 1. During the installation process, the screw 34 can be rotated synchronously by rotating the actuating disc 36, which in turn drives the sliding plate 23 to move away from or closer to the fixed plate 22, so that the fall protection mechanism 2 can be installed on the surface of I-beam 1 of different specifications. The worker's safety harness is connected to the hook 29 of the fall arrest mechanism 2. As the worker climbs up the vertical steel structure, the second link 28 will move closer to the surface of the base plate 21 under the action of the hook lock, while the limiting plate 27 at the end of the first link 26 will move away from the I-beam 1. At this time, the entire fall arrest mechanism 2 can slide smoothly upward along the I-beam 1. If the worker falls, the safety harness will also move downward with the body and pull the second link 28 away from the base plate 21 through the hook 29. This will make the second link 28 move away from the base plate 21. At this time, the limiting plate 27 at the end of the first link 26 will firmly abut against the inner wall of the I-beam 1, forming a stable mechanical lock to prevent the fall arrest mechanism 2 and the connected worker from continuing to slip, thus structurally eliminating the risk of falling. When the work environment changes from vertical climbing to horizontal movement, the angle of the linkage mechanism can be adjusted by rotating the turntable 25 to keep the first linkage 26 and the second linkage 28 parallel to the base plate 21. At this time, the limiting screw 31 can be tightened so that one end abuts against the surface of the base plate 21. Utilizing the self-locking characteristic of the threaded connection, the position of the turntable 25 can be firmly fixed, and the force direction of the hook ring 29 will then turn horizontal. When the worker moves along the horizontal steel structure, the tension direction of the safety strap is consistent with the extension direction of the second linkage 28. The second linkage 28 will not displace away from the base plate 21, and the limiting plate 27 remains away from the inner wall of the I-beam 1. The mechanism achieves smooth sliding by relying on the rolling characteristics of the rotating wheel 24. If a worker accidentally slips or falls during horizontal movement, the safety harness will instantly apply lateral tension, causing the second linkage 28 to move away from the base plate 21. The first linkage 26 will then drive the limiting plate 27 to press tightly against the inner wall of the I-beam 1. Together with the corner of the fixed plate 22 and the sliding plate 23, a horizontal mechanical lock will be formed to prevent workers from slipping off the horizontal steel structure. This effectively protects the lives of workers when working at heights on cantilevered steel structures and has high practicality.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A safety protection device for high-altitude operations during the construction of cantilevered steel structures, comprising an I-beam (1), wherein a fall protection mechanism (2) is slidably engaged on the surface of the I-beam (1), characterized in that: The fall arrestor (2) includes a base plate (21), a fixed plate (22) is fixedly installed at one end of the base plate (21), a sliding plate (23) is slidably engaged at the other end of the base plate (21), a turntable (25) is rotatably engaged at the middle of the base plate (21), a rotating groove (20) is provided in the middle of the turntable (25), a connecting rod (26) is rotatably installed in the middle of the rotating groove (20), a limit plate (27) is fixedly installed at one end of the connecting rod (26), a connecting rod (28) is fixedly installed at the other end of the connecting rod (26), a hook (29) is fixedly connected at one end of the connecting rod (28), a side plate (30) is fixedly installed on one side of the turntable (25), and a limit screw (31) is threadedly connected to one side of the middle of the side plate (30).

2. The safety protection device for high-altitude operations during the construction of cantilevered steel structures according to claim 1, characterized in that: The fall protection mechanism (2) has a sliding groove (33) on the upper and lower sides of the middle of one side, and a slider (32) is fixedly installed on the upper and lower sides of the middle of one side of the sliding plate (23). The slider (32) and the sliding groove (33) are slidably engaged.

3. The safety protection device for high-altitude operations during the construction of cantilevered steel structures according to claim 2, characterized in that: A lead screw (34) is rotatably mounted in the middle of one of the slide grooves (33), and a dial (36) is fixedly mounted at one end of the lead screw (34). The lead screw (34) is threadedly connected to one of the sliders (32) of the sliding plate (23).

4. A safety protection device for high-altitude operations during the construction of cantilevered steel structures according to claim 2, characterized in that: A slide rod (35) is fixedly installed in the middle of another slide groove (33). The slide rod (35) is slidably engaged with the middle of another slider (32) of the sliding plate (23). Multiple rotating wheels (24) are evenly provided in the middle of the other side of the fixed plate (22) and the sliding plate (23). The rotating wheels (24) are slidably engaged with the two sides of one end of the I-beam (1).

5. A safety protection device for high-altitude operations during the construction of cantilevered steel structures according to claim 1, characterized in that: The limiting plate (27) at the end of the first connecting rod (26) moves away from the inner wall of the I-beam (1) when the second connecting rod (28) approaches the bottom plate (21), and the limiting plate (27) at the end of the first connecting rod (26) abuts against the inner wall of the I-beam (1) when the bottom plate (21) moves away from the bottom plate (21).

6. A safety protection device for high-altitude operations during the construction of cantilevered steel structures according to claim 1, characterized in that: One end of the limiting screw (31) abuts against the surface of the base plate (21).

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