Fall arrest device for a tower section

Abstract

The application discloses a falling-prevention device for a tower tube segment. The falling-prevention device for the tower tube segment comprises a first clamping arm, a second clamping arm and an adjusting mechanism. The first clamping arm is rotatably provided with at least one first clamping part at one end, and the first clamping part is used for abutting against one side wall surface of the tube segment. The second clamping arm is rotatably connected with the first clamping arm, and the second clamping arm is rotatably provided with at least one second clamping part at one end, and the second clamping part is oppositely arranged with the first clamping part, and the second clamping part is used for abutting against the other side wall surface of the tube segment. The adjusting mechanism makes the first clamping part and the second clamping part relatively close or far away. The technical scheme provided by the application can be directly and independently fixed on the tower tube segment through the cooperative clamping of the first clamping arm and the second clamping arm, does not need to occupy hoisting equipment resources, and can be installed and used at any operation area of the tube segment by an operator at any time, so that the continuous operation requirements of the tube segment repair, hoisting point mounting and dismounting and the like in the field are effectively adapted.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a fall arrest device for tower segments. Background Technology

[0002] In the on-site assembly of wind turbine hybrid towers, the segments are usually precast reinforced concrete / composite material components in the shape of arcs. Multiple segments are spliced ​​together to form a complete tower ring, and then multiple rings are stacked to form the main structure of the wind turbine hybrid tower.

[0003] The surface of tunnel segments is easily damaged during transportation and hoisting, requiring on-site repairs. Furthermore, after hoisting, detachment and reattachment operations are necessary, requiring personnel to be on the segments. These segments are typically about 300mm thick, and the working height exceeds 3.6m, constituting a high-altitude hazardous operation. Personnel performing repairs or detaching / reattaching hooks above the segments face an extremely high risk of fall. Currently, on-site methods primarily rely on attaching safety ropes to crane hooks and keeping the crane continuously stationary in the work area. However, the crane must handle multiple hoisting tasks and cannot provide sustained support, resulting in poor practicality. Utility Model Content

[0004] The purpose of this application is to provide a fall arrest device for tower segments. Through the coordinated clamping of the first and second clamping arms, it can be directly and independently fixed to the tower segments without occupying hoisting equipment resources. Operators can install and use it at any time in any working area of ​​the segments, effectively adapting to the continuous operation needs of routine segment repair, hoisting and unhooking on site.

[0005] This utility model provides a fall protection device for tower tube segments, comprising: The first clamping arm has at least one first clamping part rotatably provided at one end, and the first clamping part is used to abut against one side wall of the pipe sheet. The second clamping arm is rotatably connected to the first clamping arm. One end of the second clamping arm is rotatably provided with at least one second clamping part, and the second clamping part is disposed opposite to the first clamping part. The second clamping part is used to abut against the other side wall of the pipe sheet. An adjustment mechanism is connected to the first clamping arm and the second clamping arm. The adjustment mechanism is used to drive the first clamping arm and the second clamping arm to rotate relative to each other, so that the first clamping part and the second clamping part move closer or further apart.

[0006] Beneficial Effects: This fall arrestor for tower tube segments allows operators to easily remove the device during segment repair or lifting operations. The device is placed on top of the segment, with the first and second clamping arms positioned on opposite sides, ensuring the first and second clamping parts are aligned with the side walls of the segment. The operator then adjusts the mechanism to rotate the first and second clamping arms towards the side walls until they are firmly clamped against the segment. The operator can then attach a safety rope to any suitable position on the device and begin work. If the operator needs to move the work position, they simply adjust the mechanism to release the clamping parts from the segment, move the device to the target position, and repeat the clamping process. After the work is completed, the device can be removed by adjusting the mechanism again, allowing the entire process to proceed without complicated tools or cumbersome procedures.

[0007] With the coordinated clamping of the first and second clamping arms, it can be directly and independently fixed to the tower segments without occupying hoisting equipment resources. Operators can install and use it at any time in any working area of ​​the segments, effectively adapting to the continuous operation needs of routine segment repair, lifting point detachment, etc. This completely eliminates the dependence on cranes in traditional solutions. Even if the crane leaves to carry out other operations, the operators remain protected, fundamentally solving the safety hazard of cranes not being able to provide long-term support.

[0008] Meanwhile, the entire device can easily slide on the tunnel lining segments. When workers need to move, they simply need to loosen the clamping mechanism, move to the new position, and then re-clamp to regain safety protection. This achieves full coverage of the work path with a safety protection range, effectively overcoming the problem of severely limited range of motion when the safety rope is attached to a fixed suspension point, and eliminating the risk of falls caused by exceeding the protection range or lengthening the safety rope.

[0009] In addition, the first clamping part and the second clamping part abut against each other from both sides of the tube segment, and the clamping arms are driven to rotate relative to each other through the adjustment mechanism to achieve clamping. The fixing method is stable and not easy to loosen, providing operators with a reliable safety hanging point installation base. Furthermore, the clamping part is rotatably located at the end of the clamping arm, which can adaptively adjust the contact angle according to the curvature of the tube segment wall to ensure a tight fit with the tube segment wall and avoid the device slipping due to unstable contact.

[0010] In one optional embodiment, the first clamping part is rotatably disposed on the first clamping arm along the width direction of the fall protection device; The second clamping part is rotatably mounted on the second clamping arm along the height direction of the fall protection device.

[0011] Beneficial effects: The tower tube segments are prefabricated arc-shaped components with arc-shaped sidewalls. The first clamping part rotates along the width of the device, and can adaptively adjust the contact angle according to the curvature of the tube segment's sidewall, so that the clamping part forms a surface contact with the tube segment wall, increasing the contact area while dispersing pressure, avoiding local stress concentration that could cause the device to slip off, and is especially suitable for the arc-shaped contours of tube segments of different diameters, improving the reliability of fixation.

[0012] In one optional embodiment, two first clamping parts are provided, and the two first clamping parts are spaced apart along the width direction of the fall protection device and are respectively provided on both sides of the first clamping arm. The second clamping part is provided, and the second clamping part corresponds to the middle area of ​​the two first clamping parts.

[0013] Beneficial effects: The two first clamping parts provide lateral support from both ends of one side of the tunnel segment, while the second clamping part abuts against the middle area of ​​the other side of the tunnel segment. These three points form a stable triangular force-bearing structure. Compared to traditional two-point clamping, this effectively limits the lateral displacement and overturning of the device along the width of the tunnel segment. Even if lateral offset forces are generated during operation, the overall stability of the device remains maintained, structurally eliminating the risk of slippage at heights. Furthermore, the three-point contact ensures a more uniform distribution of clamping force, preventing loosening of the device due to localized stress concentration. This is particularly suitable for the curved wall surface of tunnel segments, further enhancing the reliability of the fixation through multi-point contact and meeting the safety requirements for fall protection at heights.

[0014] In one optional embodiment, the first clamping part includes a first clamping plate and a first rotating shaft, wherein the first clamping plate is rotatably disposed on the first clamping arm via the first rotating shaft. The second clamping part includes a second clamping plate and a second rotating shaft, and the second clamping plate is rotatably disposed on the second clamping arm via the second rotating shaft.

[0015] Beneficial effects: The first clamping plate is assembled to the corresponding clamping arm via the first rotating shaft and the second clamping plate is assembled to the corresponding clamping arm via the second rotating shaft, forming a clear transmission structure, which avoids problems such as high rotational resistance and jamming caused by direct connection between the clamping part and the clamping arm.

[0016] In one optional embodiment, rubber pads are provided on the clamping surfaces of both the first clamping plate and the second clamping plate.

[0017] Beneficial effects: The rubber pad has a high coefficient of friction, which can significantly improve the static friction with the pipe segment wall compared to direct contact with metal clamps, effectively resisting external forces such as vibration from high-altitude operations and personnel tilting; at the same time, its elastic deformation ability can fill the tiny unevenness or texture gaps on the pipe segment surface, forming a tight and flexible fit, generating a continuous pre-tightening force. Even if there is slight looseness in the adjustment mechanism, it can maintain clamping stability through elastic compensation and prevent the device from slipping.

[0018] In one alternative embodiment, the first clamping arm is further provided with an abutment plate, which is located above the first clamping part and extends to both sides of the first clamping arm along the width direction of the anti-fall device. The abutment plate is used to abut the top of the pipe piece.

[0019] Beneficial effects: When the fall arrestor clamps the pipe segment, the abutment plate abuts against the top of the pipe segment, forming a three-dimensional limiting system with the first clamping part on both sides and the corresponding second clamping part. This not only restricts the slippage of the device along the thickness direction of the pipe segment, but also prevents the device from moving along the height direction of the pipe segment. This effectively avoids the device displacement caused by personnel movement and vibration during high-altitude operations, and eliminates the risk of slippage from a structural perspective.

[0020] In one alternative embodiment, the adjusting mechanism is configured as an adjustable distance connecting rod, one end of which is rotatably connected to the end of the first clamping arm away from the first clamping portion, and the other end of which is rotatably connected to the end of the second clamping arm away from the second clamping portion.

[0021] Beneficial effects: The adjustable connecting rod is connected to the far end of the two clamping arms away from the clamping part. By increasing the length of the lever arm, the operator only needs to apply a small force to form a large clamping force at the clamping part, ensuring that the device is firmly fixed to the segment.

[0022] In one optional embodiment, both the first clamping arm and the second clamping arm are provided with connecting holes, and the first clamping arm and the second clamping arm are rotatably connected by a connector passing through the connecting holes.

[0023] Beneficial effects: The two clamping arms are rotatably connected by the connector passing through the connecting hole. The structure is simple and intuitive. The processing only requires opening holes on the clamping arms. The process is simple and the cost is controllable. No complicated alignment is required during assembly. The rotating pair can be completed by inserting the connector. It is convenient for quick on-site assembly and subsequent maintenance and replacement.

[0024] In one alternative embodiment, the first clamping arm and / or the second clamping arm are provided with a plurality of connection holes spaced apart along their extension direction.

[0025] Beneficial effects: Multiple connecting holes are provided at intervals along the extension direction of the clamping arm. By selecting connecting holes with different positions to install connectors, the rotation fulcrum positions of the first and second clamping arms can be adjusted, thereby changing the initial distance and clamping stroke of the first and second clamping parts.

[0026] In one optional embodiment, both the first clamping arm and the second clamping arm are provided with multiple hanging holes.

[0027] Beneficial effects: Multiple attachment points are spaced apart along the extension direction of the clamp arm, allowing operators to flexibly choose attachment points based on their work position and body posture, avoiding the limitation of the safety rope's range of motion caused by a single attachment point. For example, when working in different areas of the tunnel segment, the safety rope can be attached to the nearest attachment point, reducing the risk of rope pulling and entanglement, and ensuring freedom of movement during operation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a structure in one embodiment of the present application, showing an anti-fall device for tower tube segments installed on the tube segments; Figure 2 This is a schematic diagram of a fall arrest device for tower tube segments according to one embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the first clamping arm in an anti-fall device for tower tube segments provided in one embodiment of this application; Figure 4 yes Figure 3 A partially enlarged schematic diagram of the first clamping part; Figure 5 This is a schematic diagram of the structure of the second clamping arm in an anti-fall device for tower tube segments provided in one embodiment of this application; Figure 6 yes Figure 5 A partially enlarged schematic diagram of the second clamping part.

[0030] Explanation of reference numerals in the attached figures: 100. First clamping arm; 110. First clamping part; 111. First clamping plate; 112. First rotating shaft; 113. Rubber pad; 120. Abutment plate; 130. Connecting hole; 140. Hanging hole; 200. Second clamping arm; 210. Second clamping part; 211. Second clamping plate; 212. Second rotating shaft; 300. Adjustment mechanism; 400. Connectors; 500, chain; 600. Connecting mechanism; 1000, tunnel segments. Detailed Implementation

[0031] The surface of tunnel segments is easily damaged during transportation and hoisting, requiring on-site repairs. Furthermore, after hoisting, detachment and reattachment operations are necessary, requiring personnel to be on the segments. These segments are typically about 300mm thick, and the working height exceeds 3.6m, constituting a high-altitude hazardous operation. Personnel performing repairs or detaching / reattaching hooks above the segments face an extremely high risk of fall. Currently, on-site methods primarily rely on attaching safety ropes to crane hooks and keeping the crane continuously stationary in the work area. However, the crane must handle multiple hoisting tasks and cannot provide sustained support, resulting in poor practicality.

[0032] During the research and development of this application, to provide safety protection for operators without relying on cranes, the pre-embedded lifting points on the tunnel segments themselves were directly used as safety anchor points for personnel. Although this method eliminates the need for cranes, the fixed location of the lifting points strictly limits the operator's operating range to the radius corresponding to the length of the safety rope, making some areas on the tunnel segments inaccessible and affecting the comprehensiveness of the repair work. If the safety rope were lengthened to expand the operating range, the excessive redundancy would negate the core function of fall protection and instead increase the risk of falls.

[0033] Based on this, the inventors of this application have redesigned the fall arrestor for tower segments. During segment repair or lifting operations, the operator only needs to place the fall arrestor on top of the segment, with the first and second clamping arms positioned on opposite sides of the segment, ensuring that the first and second clamping parts are aligned with the side walls of the segment. Then, the operator adjusts the adjustment mechanism to rotate the first and second clamping arms toward the side walls of the segment until the first and second clamping parts are firmly against and clamped to the segment. At this point, the operator can attach a safety rope to any suitable position on the device to begin work. If the operator needs to move the work position, they only need to adjust the adjustment mechanism to release the first and second clamping parts from the segment, move the fall arrestor to the target position, and repeat the clamping operation to continue work. After the work is completed, the operator only needs to adjust the adjustment mechanism to release the first and second clamping parts from the segment to remove the fall arrestor from the segment, without requiring complex tools or cumbersome procedures.

[0034] With the coordinated clamping of the first and second clamping arms, it can be directly and independently fixed to the tower segments without occupying hoisting equipment resources. Operators can install and use it at any time in any working area of ​​the segments, effectively adapting to the continuous operation needs of routine segment repair, lifting point detachment, etc. This completely eliminates the dependence on cranes in traditional solutions. Even if the crane leaves to carry out other operations, the operators remain protected, fundamentally solving the safety hazard of cranes not being able to provide long-term support.

[0035] Meanwhile, the entire device can easily slide on the tunnel lining segments. When workers need to move, they simply need to loosen the clamping mechanism, move to the new position, and then re-clamp to regain safety protection. This achieves full coverage of the work path with a safety protection range, effectively overcoming the problem of severely limited range of motion when the safety rope is attached to a fixed suspension point, and eliminating the risk of falls caused by exceeding the protection range or lengthening the safety rope.

[0036] In addition, the first clamping part and the second clamping part abut against each other from both sides of the tube segment, and the clamping arms are driven to rotate relative to each other through the adjustment mechanism to achieve clamping. The fixing method is stable and not easy to loosen, providing operators with a reliable safety hanging point installation base. Furthermore, the clamping part is rotatably located at the end of the clamping arm, which can adaptively adjust the contact angle according to the curvature of the tube segment wall to ensure a tight fit with the tube segment wall and avoid the device slipping due to unstable contact.

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0038] The following is combined Figures 1 to 6 The embodiments of the present invention are described as shown.

[0039] According to embodiments of the present invention, on the one hand, such as Figures 1 to 6 As shown, a fall arrest device for tower tube segments is provided, including a first clamping arm 100, a second clamping arm 200, and an adjusting mechanism 300.

[0040] Specifically, such as Figure 1 and Figure 2 As shown, one end of the first clamping arm 100 is rotatably provided with a first clamping part 110, wherein at least one first clamping part 110 is provided, and the first clamping part 110 is used to abut against one side wall surface of the pipe piece 1000. For example, the first clamping part 110 is used to abut against the outer wall surface or the inner wall surface of the pipe piece 1000.

[0041] Specifically, such as Figure 1 and Figure 2As shown, the second clamping arm 200 is rotatably connected to the first clamping arm 100. One end of the second clamping arm 200 is rotatably provided with a second clamping portion 210. At least one second clamping portion 210 is provided, and the second clamping portion 210 is disposed opposite to the first clamping portion 110, with the space between the second clamping portion 210 and the first clamping portion 110 used to place the tube segment 1000. The second clamping portion 210 is used to abut against the other side wall surface of the tube segment 1000. For example, when the first clamping portion 110 abuts against the inner wall surface of the tube segment 1000, the second clamping portion 210 abuts against the outer wall surface of the tube segment 1000; or, when the first clamping portion 110 abuts against the outer wall surface of the tube segment 1000, the second clamping portion 210 abuts against the inner wall surface of the tube segment 1000.

[0042] Specifically, such as Figure 1 and Figure 2 As shown, the first clamping arm 100 and the second clamping arm 200 are connected by an adjustment mechanism 300. The adjustment mechanism 300 is used to drive the first clamping arm 100 and the second clamping arm 200 to rotate relative to each other, so that the first clamping part 110 and the second clamping part 210 are relatively close to or far away from each other.

[0043] This fall arrestor for tower tube segments allows operators to easily install the device during repairs or lifting operations on segment 1000. The device is placed on top of segment 1000, with the first clamping arm 100 and the second clamping arm 200 positioned on opposite sides of the segment 1000, ensuring the first clamping part 110 and the second clamping part 210 are aligned with the side walls of segment 1000. The operator then adjusts the adjusting mechanism 300 to rotate the first clamping arm 100 and the second clamping arm 200 towards the side walls of segment 1000 until the first clamping part 110 and the second clamping part 210 are firmly abutted against and secured to segment 1000. At this point, the operator can attach a safety rope to any suitable position on the device to begin work. If the operator needs to move the work position, they only need to adjust the adjustment mechanism 300 to release the first clamping part 110 and the second clamping part 210 from the pipe segment 1000, move the fall arrestor to the target position, and repeat the above clamping operation to continue the work. After the work is completed, they only need to adjust the adjustment mechanism 300 to release the first clamping part 110 and the second clamping part 210 from the pipe segment 1000 to remove the fall arrestor from the pipe segment 1000. The entire process requires no complicated tools or cumbersome procedures.

[0044] Through the coordinated clamping of the first clamping arm 100 and the second clamping arm 200, it can be directly and independently fixed to the tower segment 1000 without occupying hoisting equipment resources. Operators can install and use it at any working area of ​​the segment 1000 at any time, effectively adapting to the continuous operation needs of routine segment 1000 repair, lifting point detachment, etc. This completely eliminates the dependence on cranes in traditional solutions. Even if the crane leaves to carry out other operations, the operators remain in a protected state, fundamentally solving the safety hazard of cranes not being able to provide long-term support.

[0045] Meanwhile, the entire device can easily slide on the 1000-meter segment. When workers need to move, they only need to loosen the clamping mechanism, move to the new position, and then re-clamp to regain safety protection. This achieves full coverage of the work path with a safety protection range, effectively overcoming the problem of severely limited range of motion when the safety rope is hung on a fixed suspension point, and eliminating the risk of falls caused by exceeding the protection range or lengthening the safety rope.

[0046] Furthermore, the first clamping part 110 and the second clamping part 210 respectively abut against each other from both sides of the tube segment 1000, and the clamping arms are driven to rotate relative to each other through the adjusting mechanism 300 to achieve clamping. The fixing method is stable and not easy to loosen, providing a reliable safety hanging point installation base for operators. In addition, the clamping part is rotatably located at the end of the clamping arm, and can adaptively adjust the contact angle according to the curvature of the tube segment 1000 wall surface to ensure a tight fit with the tube segment 1000 wall surface and avoid the device from slipping due to unstable contact.

[0047] Specifically, the first clamping arm 100 may be provided with one first clamping part 110 or multiple first clamping parts 110, and the multiple first clamping parts 110 may be provided at intervals. Similarly, the second clamping arm 200 may also be provided with one or more second clamping parts 210. In the implementation of this application, the number of first clamping parts 110 and second clamping parts 210 is not specifically limited.

[0048] Specifically, the adjustment mechanism 300 can be a threaded adjustment structure, a hydraulic or pneumatic adjustment structure, etc. In this embodiment, the type of adjustment mechanism 300 is not specifically limited.

[0049] In one embodiment, such as Figures 2 to 6 As shown, the first clamping part 110 is rotatable about the first clamping arm 100 along the width direction of the fall arrestor. The second clamping part 210 is rotatable about the second clamping arm 200 along the height direction of the fall arrestor.

[0050] The tower segment 1000 is an arc-shaped prefabricated component with a circular arc surface (rather than a flat surface) on its sidewall. The first clamping part 110 rotates along the width direction of the device (i.e., rotates about an axis parallel to the circumferential direction of the segment 1000), which can adaptively adjust the contact angle according to the curvature of the sidewall of the segment 1000, so that the clamping part forms a surface contact (rather than a point / line contact) with the wall surface of the segment 1000. This increases the contact area while dispersing pressure, avoiding local stress concentration that could cause the device to slip off. It is especially suitable for the arc-shaped contours of segments 1000 with different diameters, improving the reliability of the fixation.

[0051] The on-site segment 1000 may have slight thickness deviations due to prefabrication accuracy and transportation deformation, or the device may be slightly tilted during operation. The second clamping part 210 rotates along the height direction of the device (i.e., rotates around an axis perpendicular to the circumferential direction of the segment 1000), which can adaptively adjust the longitudinal contact angle. Even if there are local deviations in the thickness of the segment 1000 or the device is not placed horizontally, it can still ensure that the clamping part is in close contact with the other side wall of the segment 1000, avoiding clamping failure caused by one side being suspended, and ensuring the stability of the device under complex working conditions.

[0052] In one embodiment, such as Figures 2 to 6 As shown, there are two first clamping parts 110, which are spaced apart along the width direction of the fall arrestor and are respectively located on both sides of the first clamping arm 100. There is one second clamping part 210, which corresponds to the middle area of ​​the two first clamping parts 110.

[0053] Two first clamping parts 110 provide support from the two lateral ends of one side of the segment 1000, while the second clamping part 210 abuts against the middle area of ​​the other side of the segment 1000. These three points form a stable triangular force-bearing structure. Compared to traditional two-point clamping, this effectively limits the lateral displacement and overturning of the device along the width of the segment 1000. Even if lateral offset forces are generated during operation (such as body tilting or tool pulling), the overall stability of the device remains maintained, structurally eliminating the risk of slippage at height. Furthermore, the three-point contact ensures a more uniform distribution of clamping force, preventing loosening of the device due to localized stress concentration. This is particularly suitable for the curved wall surface of the segment 1000, further enhancing the reliability of the fixation through multi-point contact and meeting the safety requirements for fall protection at heights.

[0054] In one embodiment, such as Figures 2 to 6 As shown, the first clamping part 110 includes a first clamping plate 111 and a first rotating shaft 112, wherein the first clamping plate 111 is rotatably mounted on the first clamping arm 100 via the first rotating shaft 112. Similarly, the second clamping part 210 includes a second clamping plate 211 and a second rotating shaft 212, wherein the second clamping plate 211 is rotatably mounted on the second clamping arm 200 via the second rotating shaft 212.

[0055] The first clamping plate 111 is assembled to the corresponding clamping arm via the first rotating shaft 112 and the second clamping plate 211 is assembled to the corresponding clamping arm via the second rotating shaft 212, forming a clear transmission structure, which avoids problems such as large rotational resistance and jamming caused by direct connection between the clamping part and the clamping arm.

[0056] Compared to point contact or line contact clamping structures, the first clamping plate 111 and the second clamping plate 211 can form a larger contact area with the wall surface of the segment 1000, effectively dispersing the clamping force and avoiding scratching and squeezing damage to the surface of the segment 1000 caused by local stress concentration (suitable for brittle materials such as precast reinforced concrete segments 1000); at the same time, the larger contact area can increase the friction force, further preventing the device from slipping due to vibration and lateral load during high-altitude operations, and enhancing the reliability of the fixation.

[0057] Specifically, as an independent rotating component, the shaft can be equipped with high-precision bearings or optimized shaft hole fit clearance to ensure that the clamping plate rotates flexibly during operation, accurately respond to changes in working conditions such as the curvature and thickness deviation of the 1000mm wall surface of the tube segment, and improve the adaptive fitting capability.

[0058] In one embodiment, such as Figures 2 to 6 As shown, rubber pads 113 are respectively provided on the clamping surfaces of the first clamping plate 111 and the second clamping plate 211.

[0059] The rubber pad 113 has a high coefficient of friction. Compared with direct contact with the metal clamp, it can significantly improve the static friction with the wall of the segment 1000, effectively resisting external forces such as vibration from high-altitude operations and personnel tilting. At the same time, its elastic deformation ability can fill the small unevenness or texture gaps on the surface of the segment 1000, forming a tight and flexible fit and generating a continuous pre-tightening force. Even if the adjustment mechanism 300 is slightly loose, it can maintain clamping stability through elastic compensation and prevent the device from slipping.

[0060] The segments 1000 are mostly made of precast reinforced concrete or composite materials, with limited surface strength. The rubber pads 113 can disperse the concentrated clamping force into surface pressure, reduce local stress concentration, and prevent the segments 1000 from scratching, indenting, or cracking. In the event of an accidental fall, the rubber pads 113 can absorb some of the impact energy, buffer the effect of the instantaneous load on the segments 1000, and at the same time reduce the reverse impact of the segments 1000 on the equipment components, thus balancing the integrity of the segments 1000 and the service life of the equipment.

[0061] Specifically, anti-slip textures can be provided on the clamping surface of the rubber pad 113 to improve the clamping stability of the first clamping plate 111 and the second clamping plate 211.

[0062] In one embodiment, such as Figures 1 to 3As shown, an abutment plate 120 is also provided on the first clamping arm 100. The abutment plate 120 is disposed above the first clamping part 110 and extends to both sides of the first clamping arm 100 along the width direction of the fall arrestor. When the fall arrestor clamps the pipe segment 1000, the abutment plate 120 is used to abut against the top of the pipe segment 1000.

[0063] When the fall arrestor clamps the segment 1000, the abutment plate 120 abuts against the top of the segment 1000, forming a three-dimensional limiting system with the first clamping parts 110 on both sides and the corresponding second clamping parts 210. This not only restricts the device from sliding along the thickness direction of the segment 1000, but also prevents the device from moving along the height direction of the segment 1000. This effectively avoids the device from shifting due to personnel movement and vibration during high-altitude operations, thus eliminating the risk of slippage from a structural perspective.

[0064] During operation, the abutment plate 120 can be quickly placed on top of the tube segment 1000 to achieve initial positioning. The device can maintain its posture without the need for manual support for a long time, making it easy for operators to adjust the adjustment mechanism 300 to complete the clamping and reducing the difficulty of single-handed operation at height. In addition, the design that extends along the width direction can be adapted to tube segments 1000 of different widths, ensuring that the device is placed stably and avoiding tilting or displacement during installation.

[0065] In addition, the structure of the abutment plate 120 extending to both sides of the first clamping arm 100 increases the contact width between the device and the segment 1000, improves the lateral support stability, effectively resists the lateral loads such as tilting force and tool pulling during operation, and prevents the device from tipping over along the width direction of the segment 1000; at the same time, the top abutment design can be adapted to the arc-shaped top profile of the segment 1000, so even if the device is placed at a slightly different angle, it can still maintain stability through contact area compensation.

[0066] Specifically, in order to reduce the overall weight of the fall arrestor and make it easier for operators to handle, several weight-reducing holes can be made on the abutment plate 120.

[0067] In one embodiment, such as Figure 2 As shown, the adjustment mechanism 300 is configured as an adjustable distance connecting rod, wherein one end of the adjustable distance connecting rod is rotatably connected to one end of the first clamping arm 100 away from the first clamping part 110, and the other end is rotatably connected to one end of the second clamping arm 200 away from the second clamping part 210.

[0068] The adjustable connecting rod is connected to the far end of the two clamping arms away from the clamping part. By increasing the length of the lever arm, the operator only needs to apply a small force to form a large clamping force at the clamping part, ensuring that the device is firmly fixed to the segment 1000.

[0069] The adjustable connecting rod can drive the two clamping arms to open and close synchronously through length adjustment (such as thread), which is simple to operate and adapts to the needs of frequent moving operations. The remote-driven lever design reduces the operating force and can be integrated with the adjustment handle, so that clamping / releasing can be completed without complicated tools, reducing the physical consumption of high-altitude operations.

[0070] Specifically, such as Figure 2 As shown, due to the limited length of the adjustable-pitch connecting rod, it may not be possible to directly connect it to the first clamping arm 100 and the second clamping arm 200. Therefore, a connecting mechanism 600 can be provided at the ends of the first clamping arm 100 and the second clamping arm 200, and the connecting mechanism 600 can be connected to the adjustable-pitch connecting rod via a chain 500.

[0071] In one embodiment, such as Figures 2 to 5 As shown, both the first clamping arm 100 and the second clamping arm 200 are provided with connecting holes 130. The first clamping arm 100 and the second clamping arm 200 are rotatably connected by a connector 400 passing through the connecting holes 130 on the first clamping arm 100 and the second clamping arm 200.

[0072] The two clamping arms are rotatably connected by connecting parts 400 (such as pins or bolts) passing through connecting holes 130. The structure is simple and intuitive. The processing only requires opening holes on the clamping arms, which is easy and cost-effective. No complicated alignment is required during assembly. The rotating pair can be completed by inserting the connecting parts 400, which facilitates quick on-site assembly and later maintenance and replacement.

[0073] Specifically, connector 400 can be made of high-strength material (such as No. 45 steel) and surface hardened to withstand repeated rotation and impact loads during high-altitude operations, ensuring the reliability of the rotating pair during long-term use.

[0074] In one embodiment, such as Figures 2 to 5 As shown, a plurality of connecting holes 130 are provided on the first clamping arm 100 and / or the second clamping arm 200 at intervals along the extending direction of the clamping arm.

[0075] Multiple connecting holes 130 are spaced apart along the extension direction of the clamping arms. By selecting connecting holes 130 at different positions to install connectors 400, the rotation fulcrum positions of the first clamping arm 100 and the second clamping arm 200 can be adjusted, thereby changing the initial distance and clamping stroke of the first clamping part 110 and the second clamping part 210. For example, for thinner segments 1000, connecting holes 130 closer to the clamping part can be selected to shorten the clamping stroke and improve operating efficiency; for thicker segments 1000, connecting holes 130 at the far end can be selected to increase the clamping range, achieving precise adaptation to segments 1000 with a thickness of 240mm-400mm and greater, meeting the needs of multi-specification operations without changing the device.

[0076] Different connection holes (130 holes) correspond to different lever arm lengths and force paths. Operators can select the optimal hole combination based on the 1000mm thickness of the segment, the working load, and other conditions to make the clamping force and load distribution more reasonable.

[0077] In one embodiment, such as Figures 2 to 5 As shown, both the first clamping arm 100 and the second clamping arm 200 have multiple hanging holes 140. The hanging holes 140 are used to hang safety ropes.

[0078] Multiple attachment holes 140 are spaced apart along the extension direction of the clamping arm, allowing operators to flexibly choose attachment points based on their work position and body posture, thus avoiding the limitation of the safety rope's range of motion due to a single attachment point. For example, when working in different areas of segment 1000, the safety rope can be attached to the nearest attachment hole 140, reducing the risk of rope pulling and entanglement, and ensuring freedom of movement during operation.

[0079] In addition, since the first clamping arm 100 and the second clamping arm 200 are provided with multiple hanging holes 140, the hanging holes 140 can not only hang safety ropes, but also act as weight reduction holes, which can effectively reduce the overall weight of the fall protection device.

[0080] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of implementation of this application. Any changes or adjustments to the relative positions without substantially altering the technical content shall also be considered within the scope of implementation of this application.

[0081] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0082] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A fall arrestor for tower tube segments, characterized in that, include: The first clamping arm (100) has at least one first clamping part (110) rotatably provided at one end, the first clamping part (110) being used to abut against one side wall of the pipe sheet (1000); The second clamping arm (200) is rotatably connected to the first clamping arm (100). One end of the second clamping arm (200) is rotatably provided with at least one second clamping part (210), and the second clamping part (210) is disposed opposite to the first clamping part (110). The second clamping part (210) is used to abut against the other side wall of the pipe sheet (1000). An adjustment mechanism (300) is connected to the first clamping arm (100) and the second clamping arm (200). The adjustment mechanism (300) is used to drive the first clamping arm (100) and the second clamping arm (200) to rotate relative to each other, so that the first clamping part (110) and the second clamping part (210) are relatively closer or farther apart.

2. The anti-fall device for tower tube segments according to claim 1, characterized in that, The first clamping part (110) is rotatably mounted on the first clamping arm (100) along the width direction of the fall protection device; The second clamping part (210) is rotatably mounted on the second clamping arm (200) along the height direction of the fall arrestor.

3. The anti-fall device for tower tube segments according to claim 2, characterized in that, Two first clamping parts (110) are provided. Along the width direction of the fall prevention device, the two first clamping parts (110) are spaced apart and are respectively provided on both sides of the first clamping arm (100). The second clamping part (210) is provided, and the second clamping part (210) corresponds to the middle area of ​​the two first clamping parts (110).

4. The anti-fall device for tower tube segments according to claim 2, characterized in that, The first clamping part (110) includes a first clamping plate (111) and a first rotating shaft (112). The first clamping plate (111) is rotatably mounted on the first clamping arm (100) via the first rotating shaft (112). The second clamping part (210) includes a second clamping plate (211) and a second rotating shaft (212). The second clamping plate (211) is rotatably mounted on the second clamping arm (200) via the second rotating shaft (212).

5. The anti-fall device for tower tube segments according to claim 4, characterized in that, Rubber pads (113) are provided on the clamping surfaces of the first clamping plate (111) and the second clamping plate (211).

6. The anti-fall device for tower tube segments according to claim 1, characterized in that, The first clamping arm (100) is also provided with an abutment plate (120), which is located above the first clamping part (110) and extends to both sides of the first clamping arm (100) along the width direction of the anti-fall device. The abutment plate (120) is used to abut the top of the pipe piece (1000).

7. The anti-fall device for tower tube segments according to any one of claims 1 to 6, characterized in that, The adjusting mechanism (300) is configured as an adjustable distance connecting rod, one end of which is rotatably connected to the end of the first clamping arm (100) away from the first clamping part (110), and the other end is rotatably connected to the end of the second clamping arm (200) away from the second clamping part (210).

8. The anti-fall device for tower tube segments according to any one of claims 1 to 6, characterized in that, Both the first clamping arm (100) and the second clamping arm (200) are provided with connecting holes (130), and the first clamping arm (100) and the second clamping arm (200) are rotatably connected by a connector (400) passing through the connecting holes (130).

9. The anti-fall device for tower tube segments according to claim 8, characterized in that, The first clamping arm (100) and / or the second clamping arm (200) are provided with a plurality of connection holes (130) spaced apart along their extension direction.

10. The anti-fall device for tower tube segments according to any one of claims 1 to 6, characterized in that, Both the first clamping arm (100) and the second clamping arm (200) are provided with multiple hanging holes (140).

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