Exterior corner safety rope anti-abrasion device
By designing a safety rope anti-wear device with a base plate, sub-plate structure, and angle locking structure, multi-angle adjustment within the range of 75°-135° was achieved, solving the problem of insufficient adaptability of existing devices, improving construction efficiency and safety, and reducing reserve costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA HYDROPOWER ELEVENTH ENG BUREAU (ZHENGZHOU) CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing safety rope anti-wear devices are not adaptable enough to different angles and corners, resulting in low construction efficiency, high safety hazards, and high reserve costs.
A wear-resistant device for a positive-angle safety rope, comprising a reference plate, a sub-plate structure, and an angle locking structure, was designed. The device achieves 5° angle adjustment within the range of 75°-135° through a locking ratchet and a return spring. Combined with a ceramic alloy wear-resistant liner and a high-molecular-weight polyethylene arc-shaped guide wheel, it provides multi-angle adaptability and wear resistance.
It improved construction efficiency, reduced safety hazards and storage costs, and enhanced the adaptability and wear resistance of the equipment.
Smart Images

Figure CN224532308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a wear-resistant device for a corner safety rope. Background Technology
[0002] Safety ropes are commonly used equipment in construction. In high-altitude construction work, the anti-wear device for safety ropes at external corners generally adopts an L-shaped 90-degree fixed steel plate structure. This device consists of two equal-length steel plates vertically welded together, with the inner wall conforming to the 90-degree external corner of the building. A safety rope fixing device is located in the middle, ensuring the safety rope remains stable on the device without displacement. Its working principle is to utilize the rigid structure of the steel plate to distribute the contact stress between the safety rope and the external corner, preventing the rope from directly rubbing against the concrete edge. However, existing safety rope protection devices are mostly fixed to the external corner position with bolts or clips, belonging to a single-angle adaptable type of protection equipment, which has the following defects in use: Angle adaptability defects: Traditional devices are mostly adapted to single-angle external corners, and have poor adaptability to unconventional angles (such as irregular buildings, junctions of sloping roofs, etc.). Therefore, gaps or interference are easily generated at the external corners of buildings, resulting in poor protection.
[0003] Low construction efficiency: When facing different angled external corners, the construction party needs to prefabricate special angle devices or manually adjust them, which increases the installation time, seriously affects the progress of high-altitude operations, and reduces construction efficiency.
[0004] Significant safety hazards: Mismatched angles can easily cause the device to shift and fall off, which can easily lead to wear and breakage of the wire rope, causing safety accidents and posing a high level of safety risks.
[0005] Insufficient economic efficiency: Construction companies need to stock anti-wear devices of various angles and specifications. The reuse rate of special angle devices is low, which increases storage costs. Utility Model Content
[0006] The purpose of this utility model is to provide a wear-resistant device for external corner safety ropes to solve the problems of insufficient adaptability and low reusability, and to overcome the defects of the prior art. See the following description for details.
[0007] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides a wear-resistant device for a safety rope with a positive angle, including a reference plate, an angle locking structure, and a rope track structure; A sub-plate structure is provided on one side of the reference plate; The angle locking structure is connected to the reference plate; The rope track structure is connected to the base plate, and the rope track structure is located on the side closer to the sub-plate structure.
[0008] Preferably, the sub-plate structure includes a reference sub-plate, the upper end of which is provided with a connecting shaft. The reference sub-plate is hinged to the reference plate via the connecting shaft. Both ends of the connecting shaft are provided with locking ratchet wheels, and the locking ratchet wheels are provided with locking grooves to realize the connection between the sub-plate structure and the reference plate, ensuring the normal use and operation of the sub-plate structure.
[0009] Preferably, the number of locking slots is 13, and the central angle between two adjacent locking slots is 5 degrees, so that the corresponding angle between two adjacent locking slots is 5 degrees, which lays the foundation for the adjustment of the sub-plate structure between 75-135 degrees.
[0010] Preferably, the other side of the reference plate is provided with anchoring holes for fixing the reference plate, and the inner side of the reference plate is provided with HV1200 grade ceramic alloy wear-resistant lining to ensure the subsequent fixing of the reference plate and to ensure the wear resistance of the reference plate and the contact surface of the external corner.
[0011] Preferably, the angle locking structure includes an operating plate with two symmetrically distributed connecting rods at its lower end. The lower ends of the connecting rods pass through a reference plate, and a locking block is provided at the lower end of each connecting rod. A return spring is provided on the outer side of each connecting rod, thereby connecting the angle locking structure and the reference plate and laying the foundation for subsequent locking of the sub-plate structure.
[0012] Preferably, the reference plate is provided with a socket corresponding to the connecting rod, and the connecting rod and the socket are fitted together to ensure the fit between the connecting rod and the reference plate.
[0013] Preferably, the locking block and the locking slot correspond to each other, and the locking block and the locking slot are installed together to ensure that the locking block and the locking slot work together, laying the foundation for locking the ratchet.
[0014] Preferably, the return spring is in a compressed state, with one end connected to the locking block and the other end connected to the reference plate. This ensures the connection and installation of the return spring, thereby pressing and fixing the locking block and laying the foundation for fixing the locking block.
[0015] Preferably, the ropeway structure includes two symmetrical upright plates, the lower ends of which are fixedly connected to a reference plate. Two symmetrical rotating shafts are arranged between the two upright plates, with their ends rotatably connected to the two upright plates respectively. An arc-shaped guide wheel is provided in the middle of the rotating shaft, the radius of which gradually increases from the middle to both ends. The arc-shaped guide wheel is made of high-molecular-weight polyethylene material, which realizes the connection and installation between the ropeway structure and the reference plate, ensuring the lower ropeway of the installation rope.
[0016] Preferably, a bearing is provided at the connection between the rotating shaft and the vertical plate. The bearing is a sealed bearing to reduce the friction and wear on the rotating shaft.
[0017] The beneficial effects are: By using the base plate, sub-plate structure, and angle locking structure in combination, the anti-wear device for the external corner safety rope can be adjusted in 5° increments within the range of 75°-135°. This allows the device to be used at unconventional angles, reducing the time wasted by prefabricating special angle devices or manually adjusting them, thus improving construction efficiency. It also avoids the problem of single-angle adaptable protective devices easily causing device displacement and detachment, resulting in wire rope wear and breakage, thus enhancing safety. At the same time, it avoids the shortcomings of construction companies needing to stock multiple angle specifications of anti-wear devices and the low reuse rate of special angle devices, reducing warehousing costs and facilitating product promotion and use. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a utility model Figure 1 A schematic diagram of the three-dimensional structure; Figure 3 This is a utility model Figure 1 A schematic diagram of a partial cross-sectional structure; Figure 4 This is a utility model Figure 1 Enlarged structural diagram at point A; Figure 5 This is a utility model Figure 3 A magnified structural diagram at point B in the middle.
[0020] The annotations in the attached figures are explained as follows: 1. Base plate; 2. Sub-plate structure; 21. Base sub-plate; 22. Connecting shaft; 23. Locking ratchet; 24. Locking slot; 3. Angle locking structure; 31. Operating plate; 32. Return spring; 33. Locking block; 34. Connecting rod; 4. Ropeway structure; 41. Vertical plate; 42. Bearing; 43. Arc-shaped guide wheel; 44. Shaft; 5. Anchor hole. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] See Figures 1-5As shown, this utility model provides a wear-resistant device for a safety rope with an external angle, including a reference plate 1, an angle locking structure 3, and a rope path structure 4. A secondary plate structure 2 is provided on one side of the reference plate 1. Specifically, the secondary plate structure 2 includes a reference secondary plate 21, with a connecting shaft 22 at its upper end. The reference secondary plate 21 is hinged to the reference plate 1 via the connecting shaft 22. Locking ratchet wheels 23 are provided at both ends of the connecting shaft 22, and locking grooves 24 are provided on the locking ratchet wheels 23. This design enables the connection between the secondary plate structure 2 and the reference plate 1, ensuring the normal use and operation of the secondary plate structure 2. Furthermore, the number of locking slots 24 is 13, and the central angle between two adjacent locking slots 24 is 5 degrees. This design ensures that the angle between two adjacent locking slots 24 is 5 degrees, laying the foundation for the adjustment of the sub-plate structure 2 between 75 and 135 degrees. Specifically, the other side of the reference plate 1 is provided with anchoring holes 5 for fixing the reference plate 1, and the inner side of the reference plate 1 is provided with HV1200 grade ceramic alloy wear-resistant lining. This design ensures the subsequent fixing of the reference plate 1 and guarantees the wear resistance of the contact surface between the reference plate 1 and the external corner; the angle locking structure 3 and the reference... The plate 1 is connected. Specifically, the angle locking structure 3 includes an operating plate 31. Two symmetrically distributed connecting rods 34 are provided at the lower end of the operating plate 31. The lower ends of the connecting rods 34 pass through the reference plate 1. Furthermore, the reference plate 1 has corresponding insertion holes for the connecting rods 34. The connecting rods 34 and the insertion holes are fitted together for installation. This design ensures proper installation between the connecting rods 34 and the reference plate 1. A locking block 33 is provided at the lower end of the connecting rods 34. Furthermore, the locking block 33 corresponds to a locking groove 24. The locking block 33 and the locking groove 24 are fitted together for installation. This design ensures proper installation between the connecting rods 34 and the reference plate 1. The stop block 33 and the locking slot 24 work together to lay the foundation for locking the ratchet 23. A return spring 32 is provided on the outside of the connecting rod 34. With the above design, the connection between the angle locking structure 3 and the reference plate 1 can be realized, laying the foundation for the subsequent locking of the sub-plate structure 2. Furthermore, the return spring 32 is in a compressed state. One end of the return spring 32 is connected to the locking block 33, and the other end of the return spring 32 is connected to the reference plate 1. With the above design, the connection and installation of the return spring 32 can be guaranteed, and the locking block 33 can be pressed and fixed, laying the foundation for fixing the locking block 33.The ropeway structure 4 is connected to the reference plate 1 and is located on the side near the auxiliary plate structure 2. Specifically, the ropeway structure 4 includes two symmetrical vertical plates 41, the lower ends of which are fixedly connected to the reference plate 1. Two symmetrical rotating shafts 44 are arranged between the two vertical plates 41, with their ends rotatably connected to the two vertical plates 41 respectively. Furthermore, bearings 42 are provided at the connection points between the rotating shafts 44 and the vertical plates 41. These bearings are sealed bearings. This design reduces friction and wear on the rotating shafts 44. An arc-shaped guide wheel 43 is provided in the middle of the rotating shaft 44, with its radius gradually increasing from the middle to both ends. The arc-shaped guide wheel 43 is made of high-molecular-weight polyethylene. This design enables the connection and installation between the ropeway structure 4 and the reference plate 1, ensuring the smooth flow of the lower rope.
[0023] Working principle: Initially, the reference plate 1 and the sub-plate structure 2 present a common vertical structure. During use, lifting the operating plate 31 upwards moves the connecting rod 34 upwards. This upward movement of the connecting rod 34 moves the locking block 33 upwards, further compressing the return spring 32. Consequently, the locking block 33 and the locking groove 24 separate. At this point, the sub-plate structure 2 can be manipulated to adjust the reference sub-plate 21 around the connecting shaft 22 in 5° increments within a range of 75°-135°. When the reference sub-plate 21 rotates to a suitable angle with the reference plate 1, such as... At 75°, 80°, 85°, 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130° and 135°, the operating plate 31 is released. At this time, the return spring 32 expands and resets, causing the locking block 33 to be pressed back into the corresponding locking groove 24, thereby fixing the locking ratchet 23 and locking the connecting shaft 22. This, in turn, locks the angle between the base plate 1 and the sub-plate structure 2, allowing the base plate 1 and the sub-plate structure 2 to work together to meet the needs of more angle ranges of external angles.
[0024] In use, the side of the reference plate 1 with the HV1200 grade ceramic alloy wear-resistant liner can be in contact with the external corner to improve the wear resistance of the reference plate 1 and the external corner contact side. The rope channel structure 4 is set at the joint of the double plates, and an arc-shaped guide wheel 43 is set on it, which allows the wire rope to pass through the arc-shaped guide wheel 43 in the air, thereby achieving non-contact protection for the wire rope.
[0025] During use, the device can be fixed at the external corner of the building by using the anchoring hole 5 and external expansion bolts to ensure the continued use of the safety rope anti-wear device.
[0026] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A wear-resistant device for a safety rope with external corners, characterized in that: It includes a reference plate (1), an angle locking structure (3), and a rope track structure (4); A sub-plate structure (2) is provided on one side of the reference plate (1); The angle locking structure (3) is connected to the reference plate (1); The rope track structure (4) is connected to the reference plate (1), and the rope track structure (4) is located on the side close to the sub-plate structure (2).
2. The anti-wear device for a safety rope at an external angle according to claim 1, characterized in that: The sub-plate structure (2) includes a reference sub-plate (21). A connecting shaft (22) is provided at the upper end of the reference sub-plate (21). The reference sub-plate (21) is hinged to the reference plate (1) through the connecting shaft (22). Locking ratchet (23) is provided at both ends of the connecting shaft (22). Locking slot (24) is provided on the locking ratchet (23).
3. The anti-wear device for a safety rope at an external angle according to claim 2, characterized in that: The number of locking slots (24) is 13, and the central angle between two adjacent locking slots (24) is 5 degrees.
4. The anti-wear device for a safety rope at an external angle according to claim 1, characterized in that: An anchoring hole (5) for fixing the reference plate (1) is provided on the other side of the reference plate (1), and an HV1200 grade ceramic alloy wear-resistant liner is provided on the inner side of the reference plate (1).
5. The anti-wear device for a safety rope at an external angle according to claim 2, characterized in that: The angle locking structure (3) includes an operating plate (31). The lower end of the operating plate (31) is provided with two symmetrically distributed connecting rods (34). The lower end of the connecting rods (34) passes through the reference plate (1). The lower end of the connecting rods (34) is provided with a locking block (33). The outer side of the connecting rods (34) is provided with a return spring (32).
6. The anti-wear device for a safety rope at an external angle according to claim 5, characterized in that: The reference plate (1) is provided with a socket corresponding to the connecting rod (34), and the connecting rod (34) and the socket are installed together.
7. The anti-wear device for a safety rope at an external angle according to claim 5, characterized in that: The locking block (33) and the locking slot (24) correspond to each other and are installed together.
8. The anti-wear device for a safety rope at an external angle according to claim 5, characterized in that: The reset spring (32) is in a compressed state. One end of the reset spring (32) is connected to the locking block (33), and the other end of the reset spring (32) is connected to the reference plate (1).
9. The anti-wear device for a safety rope at an external angle according to claim 5, characterized in that: The ropeway structure (4) includes two symmetrical upright plates (41). The lower end of the upright plate (41) is fixedly connected to the reference plate (1). Two symmetrical rotating shafts (44) are arranged between the two upright plates (41). The two ends of the rotating shafts (44) are rotatably connected to the two upright plates (41) respectively. An arc-shaped guide wheel (43) is arranged in the middle of the rotating shaft (44). The radius of the arc-shaped guide wheel (43) gradually increases from the middle to both ends. The arc-shaped guide wheel (43) is made of high molecular weight polyethylene material.
10. The anti-wear device for a safety rope at an external angle according to claim 9, characterized in that: A bearing (42) is provided at the connection between the rotating shaft (44) and the vertical plate (41), and the bearing (42) is a sealed bearing.