Electric power construction high-altitude safety rope fastening device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUANTAI SAFETY TOOLS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional safety rope buckle devices have limited braking function in power construction, making them difficult to adapt to complex working environments. The safety ropes are prone to wear, and operation and maintenance are inconvenient, affecting construction safety and efficiency.
The design combines guide rollers and guide rings with a unidirectional ratchet and pawl structure to achieve stable guidance and emergency braking of the safety rope. The squeezing force can be adjusted by a limit mechanism to adapt to different scenario requirements.
It achieves stable path guidance for the safety rope, extends its service life, improves emergency response efficiency and device convenience, and ensures the safety and work efficiency of construction personnel.
Smart Images

Figure CN224441953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power construction technology, and in particular to a high-altitude safety rope buckle device for power construction. Background Technology
[0002] In the field of power construction, working at height is a common and high-risk work scenario. Construction workers need to rely on safety rope buckles to ensure their safety. However, traditional safety rope buckles have many shortcomings. First, their braking function is limited. When a worker falls accidentally, they cannot quickly and effectively restrict the movement of the safety rope, leading to a fall accident. Second, the direction of the safety rope's movement is fixed, making it difficult to meet the different movement needs of workers in complex working environments, thus affecting work efficiency. Third, the safety rope is prone to wear and tear, and frequent friction with the device components shortens its service life, increasing usage costs and safety hazards. Fourth, operation and maintenance are inconvenient. The complex structure makes adjustment difficult, and repair and disassembly are time-consuming and laborious, increasing downtime and maintenance costs. These problems seriously restrict the safety and efficiency of high-altitude operations in power construction, necessitating the development of new safety rope buckle devices to solve these drawbacks. Utility Model Content
[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0004] Therefore, the purpose of this utility model is to provide a high-altitude safety rope buckle device for power construction, which can solve the problems of insufficient reliability of existing safety protection and excessive wear of safety ropes.
[0005] To solve the above technical problems, this utility model provides a high-altitude safety rope buckle device for power construction, which adopts the following technical solution: it includes a safety box, a first rotating shaft is fixedly connected to the inner wall of the safety box, a guide roller is rotatably connected to the outer surface of the first rotating shaft, a safety rope is rolledly connected to the outer surface of the guide roller, a guide ring is fixedly connected to the front end of the safety box, and a limit mechanism is provided inside the safety box;
[0006] The limiting mechanism includes a bolt, a rotating component, a guide rod, a cross plate, a second rotating shaft, a one-way ratchet, a sliding rod, a connecting component, a spring, a fixing plate, and a pawl.
[0007] Optionally, the number of guide rollers is two and they are symmetrically distributed at the upper and lower ends of the safety rope body, and the number of guide rings is two and they are symmetrically distributed at the front and rear ends of the safety box. The inner wall of the guide ring is in contact with the safety rope body, and a notch is provided on one side of the guide ring.
[0008] The above technical solution involves two guide rings symmetrically distributed at the front and rear ends of the safety box, which contact the safety rope to further precisely constrain the movement path of the safety rope. The notch design on one side of the guide ring facilitates the quick installation and removal of the safety rope, improving the ease of use of the device.
[0009] Optionally, a through groove is provided on one side of the safety box, and slots are provided on both sides of the through groove. A plug is slidably connected to the inner wall of the slot, and a baffle is fixedly connected to the rear end of the plug. The front surface of the baffle contacts the side surface of the safety box.
[0010] Through the above technical solution: under normal use, the baffle can prevent the safety rope from accidentally slipping out from the side of the safety box, ensuring safety during use. When it is necessary to reverse the installation or maintain the safety rope, the baffle can be easily removed for easy operation, taking into account both safety and flexibility.
[0011] Optionally, the outer surface of the bolt is threaded to the top of the safety box, and the lower end of the bolt is rotatably connected to the rotating component.
[0012] The above technical solution enables the adjustment of the position of other components in the limiting mechanism to control the squeezing force of the pawl on the safety rope, thereby adjusting the performance of the device during normal movement and emergency braking, so that the device can adapt to different usage scenarios and safety requirements.
[0013] Optionally, the lower surface of the rotating component is fixedly connected to the horizontal plate, the upper surface of the horizontal plate is fixedly connected to the guide rod, and the outer surface of the guide rod is slidably connected to the top of the safety box.
[0014] Through the above technical solution: the guide rod on the upper surface of the plate is slidably connected to the top of the safety box, which plays a guiding role and ensures that the horizontal plate will not deviate or tilt during the up and down movement, so that the horizontal plate can stably drive the lower pawl and other components to move, ensuring the stability and accuracy of the limit mechanism.
[0015] Optionally, the two sides of the cross plate are fixedly connected to the fixed plate, the inner wall of the fixed plate is rotatably connected to the pawl, the upper end of the pawl is fixedly connected to the connector, the inner wall of the connector is rotatably connected to the slide rod, the spring is located on the outside of the slide rod, the upper end of the spring is in close contact with the cross plate, and the lower end of the spring is in close contact with the upper surface of the pawl.
[0016] The above technical solution provides continuous downward pressure to the pawl. Under normal conditions, the spring pressure keeps the pawl in proper contact with the safety rope without affecting its normal movement. During emergency braking, the spring pressure causes the pawl to quickly penetrate the safety rope, enhancing the braking effect and ensuring safety.
[0017] Optionally, the inner wall of the safety box is fixedly connected to the second rotating shaft, the outer surface of the second rotating shaft is rotatably connected to the one-way ratchet, the one-way ratchet is located directly below the pawl, and the pawl and the one-way ratchet are slidably connected to the safety rope.
[0018] The above technical solution involves a one-way ratchet located directly below the pawl, with both slidingly connected to the safety rope. This structural design allows the one-way ratchet and pawl to work together, utilizing the one-way rotation characteristic of the ratchet to achieve one-way braking of the safety rope in conjunction with the pawl. This allows for rapid locking when the safety rope moves in the opposite direction, ensuring the safety of construction personnel.
[0019] Optionally, the teeth of the one-way ratchet are oriented in the direction of upward movement of the safety rope, and the pawl is oriented in the direction of upward movement of the safety rope.
[0020] Through the above technical solution, when the safety rope moves in the opposite direction, such as falling, the one-way ratchet and pawl can play a braking role in time, pierce the safety rope, prevent it from continuing to move in the opposite direction, and achieve emergency braking. This is one of the key settings for the device to achieve its safety protection function.
[0021] In summary, this utility model has at least one of the following beneficial effects:
[0022] 1. Through the special design of the one-way ratchet and pawl, the device can automatically adjust the braking state according to the direction of movement of the safety rope. In the event of a fall, the direction of movement of the safety rope is opposite to the direction of the pawl, and the pawl immediately engages with the rope and locks the one-way ratchet, achieving rapid braking.
[0023] 2. The combined design of guide rollers and guide rings ensures that the safety rope maintains a stable path within the device. The symmetrical distribution of the guide rollers reduces rope wear and extends service life, while the notched design of the guide rings facilitates quick installation and disassembly, improving emergency response efficiency. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0027] Figure 3 This is a schematic diagram of the ratchet structure of this utility model;
[0028] Figure 4 This is a schematic diagram of the quick-release baffle structure of this utility model.
[0029] Explanation of reference numerals in the attached drawings: 1. Safety box; 2. Guide ring; 3. Notch; 4. Safety rope; 5. Baffle; 6. Slot; 7. Bolt; 8. Rotating component; 9. Guide rod; 10. Horizontal plate; 11. First rotating shaft; 12. Guide roller; 13. Second rotating shaft; 14. One-way ratchet; 15. Slide rod; 16. Connector; 17. Through slot; 18. Spring; 19. Fixing plate; 20. Pawl; 21. Insert block. Detailed Implementation
[0030] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0031] Reference Figure 1-4 This utility model discloses a high-altitude safety rope buckle device for power construction, which includes a safety box 1. A first rotating shaft 11 is fixedly connected to the inner wall of the safety box 1. A guide roller 12 is rotatably connected to the outer surface of the first rotating shaft 11. A safety rope 4 is rolledly connected to the outer surface of the guide roller 12. A guide ring 2 is fixedly connected to the front end of the safety box 1. A limit mechanism is provided inside the safety box 1. There are two guide rollers 12, which are symmetrically distributed at the upper and lower ends of the safety rope 4. There are two guide rings 2, which are symmetrically distributed at the front and rear ends of the safety box 1. The inner wall of the guide ring 2 is in contact with the safety rope 4. A notch 3 is provided on one side of the guide ring 2. A through groove 17 is provided on one side of the safety box 1. Slots 6 are provided on both sides of the through groove 17. An insert block 21 is slidably connected to the inner wall of the slot 6. A baffle 5 is fixedly connected to the rear end of the insert block 21. The front surface of the baffle 5 is in contact with the side surface of the safety box 1.
[0032] The limiting mechanism includes a bolt 7, a rotating component 8, a guide rod 9, a horizontal plate 10, a second rotating shaft 13, a one-way ratchet 14, a sliding rod 15, a connecting component 16, a spring 18, a fixed plate 19, and a pawl 20. The outer surface of the bolt 7 is threadedly connected to the top of the safety box 1, the lower end of the bolt 7 is rotatably connected to the rotating component 8, the lower surface of the rotating component 8 is fixedly connected to the horizontal plate 10, the upper surface of the horizontal plate 10 is fixedly connected to the guide rod 9, the outer surface of the guide rod 9 is slidably connected to the top of the safety box 1, the two sides of the horizontal plate 10 are fixedly connected to the fixed plate 19, and the inner wall of the fixed plate 19 is rotatably connected to the pawl 20.
[0033] The upper end of the pawl 20 is fixedly connected to the connector 16, the inner wall of the connector 16 is rotatably connected to the slide bar 15, the spring 18 is located outside the slide bar 15, the upper end of the spring 18 is in close contact with the cross plate 10, the lower end of the spring 18 is in close contact with the upper surface of the pawl 20, the inner wall of the safety box 1 is fixedly connected to the second rotating shaft 13, the outer surface of the second rotating shaft 13 is rotatably connected to the one-way ratchet 14, the one-way ratchet 14 is located directly below the pawl 20, the pawl 20 and the one-way ratchet 14 are slidably connected to the safety rope 4, the teeth of the one-way ratchet 14 are oriented towards the upward direction of the safety rope 4, and the orientation of the pawl 20 is the upward direction of the safety rope 4.
[0034] Working principle: Before use, remove the baffle 5 to facilitate the installation of the safety rope 4. Insert the safety rope 4 into the safety box 1 through the through groove 17 on one side of the safety box 1. Then, insert one end of the safety rope into the guide ring 2 through the notch 3 on one side of the guide ring 2 to ensure that the safety rope 4 is in the correct position. Then, insert the safety rope 4 between the two guide rollers 12. The guide rollers 12 can support and initially guide the safety rope 4, keeping it on a specific path.
[0035] The normal movement direction of the safety rope 4 is determined by the orientation of the one-way ratchet 14 and the pawl 20. Rotating the bolt 7 causes the cross plate 10 to drive the lower end of the pawl 20 to press the safety rope 4 downward. At this time, the orientation of the one-way ratchet 14 and the pawl 20 is consistent with the movement direction of the safety rope 4. They are in rolling connection with the safety rope 4. In this state, the safety rope 4 can move smoothly along the normal movement direction between the one-way ratchet 14 and the pawl 20.
[0036] When a fall occurs, the human body causes the safety rope 4 to move downwards. At this time, the direction of movement of the safety rope 4 is opposite to the orientation of the one-way ratchet 14 and the pawl 20. Due to the special design of the one-way ratchet 14 and the pawl 20, they will both get stuck inside the safety rope 4 in this situation. The one-way ratchet 14 cannot rotate in the opposite direction, and the pawl 20 will also tightly lock the safety rope 4, thereby preventing the safety rope 4 from moving downwards and achieving limit fixation. This effectively prevents the construction worker from falling further and ensures the safety of the construction worker's life.
[0037] When the safety rope 4 needs to move in the reverse direction, first remove the baffle 5. At this time, the safety rope 4 can be freely pulled out of the safety box 1. Then, pull the safety rope 4 out from between the guide roller 12, the guide ring 2, and the one-way ratchet 14 and pawl 20. Reinstall it in the reverse order of the initial installation. That is, first pass the safety rope 4 through the notch 3 of the guide ring 2 in the reverse direction so that the safety rope 4 is inside the guide ring 2. Then place the safety rope 4 in the reverse direction between the two guide rollers 12 to ensure that the safety rope 4 is in the correct path. Subsequently, pass the safety rope 4 between the one-way ratchet 14 and the pawl 20. Adjust the orientation of the one-way ratchet 14 and the pawl 20 so that they are consistent with the new direction of movement of the safety rope 4. After installation, rotate the bolt 7 so that the cross plate 10 drives the pawl 20 to press the safety rope 4 downward. At this time, the safety rope 4 can move in the newly set direction to meet the needs of reverse operation in actual work.
[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. An electrical construction aerial safety line fastening device comprising a safety box (1), characterized in that: The inner wall of the safety box (1) is fixedly connected to a first rotating shaft (11), the outer surface of the first rotating shaft (11) is rotatably connected to a guide roller (12), the outer surface of the guide roller (12) is tumbledly connected to a safety rope (4), the front end of the safety box (1) is fixedly connected to a guide ring (2), and the inside of the safety box (1) is provided with a limit mechanism. The limiting mechanism includes a bolt (7), a rotating component (8), a guide rod (9), a horizontal plate (10), a second rotating shaft (13), a one-way ratchet (14), a slide rod (15), a connecting component (16), a spring (18), a fixing plate (19), and a pawl (20).
2. A power construction aerial safety line fastener according to claim 1, wherein: The number of guide rollers (12) is two and they are symmetrically distributed at the upper and lower ends of the safety rope body (4). The number of guide rings (2) is two and they are symmetrically distributed at the front and rear ends of the safety box (1). The inner wall of the guide ring (2) is in contact with the safety rope body (4). A notch (3) is provided on one side of the guide ring (2).
3. A power construction highline safety line fastener as defined in claim 1 wherein: A through groove (17) is provided on one side of the safety box (1), and slots (6) are provided on both sides of the through groove (17). A plug (21) is slidably connected to the inner wall of the slot (6), and a baffle (5) is fixedly connected to the rear end of the plug (21). The front surface of the baffle (5) is in contact with the side surface of the safety box (1).
4. The power construction highline safety line fastener of claim 1, wherein: The outer surface of the bolt (7) is threaded to the top of the safety box (1), and the lower end of the bolt (7) is rotatably connected to the rotating part (8).
5. The power construction highline safety line fastener of claim 1, wherein: The lower surface of the rotating component (8) is fixedly connected to the horizontal plate (10), the upper surface of the horizontal plate (10) is fixedly connected to the guide rod (9), and the outer surface of the guide rod (9) is slidably connected to the top of the safety box (1).
6. A power construction highline safety line fastener as defined in claim 1 wherein: The two sides of the horizontal plate (10) are fixedly connected to the fixed plate (19). The inner wall of the fixed plate (19) is rotatably connected to the pawl (20). The upper end of the pawl (20) is fixedly connected to the connector (16). The inner wall of the connector (16) is rotatably connected to the slide rod (15). The spring (18) is located outside the slide rod (15). The upper end of the spring (18) is in close contact with the horizontal plate (10). The lower end of the spring (18) is in close contact with the upper surface of the pawl (20).
7. The power construction highline safety line fastener of claim 1, wherein: The inner wall of the safety box (1) is fixedly connected to the second rotating shaft (13), and the outer surface of the second rotating shaft (13) is rotatably connected to the one-way ratchet (14). The one-way ratchet (14) is located directly below the pawl (20), and the pawl (20) and the one-way ratchet (14) are slidably connected to the safety rope (4).
8. The power construction highline safety line fastener of claim 1, wherein: The teeth of the one-way ratchet (14) are oriented in the upward direction of the safety rope (4), and the pawl (20) is oriented in the upward direction of the safety rope (4).