Electric power aerial work safety hanging rod
By designing a detachable outer hollow rod and inner hollow rod structure, combined with the drive unit and connecting rod inside the sleeve, the safety hanging pole for high-altitude power operations can be conveniently adjusted and quickly unlocked, solving the problems of frequent climbing and slippage in existing technologies, and improving work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN ANKAI ELECTRIC POWER CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-29
AI Technical Summary
Existing safety poles for high-altitude power operations require frequent climbing to adjust the hook position during unlocking, and the bolt unlocking method carries the risk of stripping, affecting work efficiency and safety.
A hanging rod body consisting of an outer hollow rod and an inner hollow rod was designed. The locking buckle can be quickly unlocked and locked through the drive part and connecting rod inside the sleeve. It adopts a detachable structure and a self-locking function, avoiding the use of bolt structure.
It enables convenient adjustment and quick unlocking of the hanging rod length, improves operational convenience, reduces the risk of stripping, and ensures the safety and efficiency of operators.
Smart Images

Figure CN224292377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-altitude operation technology, and in particular to a safety hanging pole for high-altitude power operations. Background Technology
[0002] The power industry high-altitude work safety pole is a special tool used to ensure the safety of workers in high-altitude operations. It is usually made of high-strength metal materials (such as aluminum alloy and steel) and has structures such as hooks and locking devices. It can be fixed to high-altitude work points such as poles and crossarms to connect safety belts, safety ropes and other protective equipment, so as to prevent workers from falling.
[0003] In high-altitude operations on power towers, when workers successfully complete their tasks in the current section and need to move to the next work point, the safety pole needs to be unlocked. Most safety poles rely on hooks at the top to connect to the tower. Due to the limited length of the safety pole, workers have to frequently adjust the hook position throughout the construction or maintenance process. Each time the hook is unlocked, workers need to climb to the hook point and manually operate it. This not only significantly extends the working time but also seriously affects work efficiency. Some hook unlocking methods use bolts, but there is a risk of stripping the threads, causing the hook to fail to unlock properly and increasing the operational risk. Therefore, we urgently need a safety pole for high-altitude power operations to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to solve the problems of inconvenience in unlocking hooks in the existing technology, the need for workers to climb multiple times, and the risk of stripping threads when using bolt unlocking. Therefore, a safety hanging pole for high-altitude power operations is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A safety pole for high-altitude power operations includes a pole body, which is mainly composed of an outer hollow pole and an inner hollow pole. The outer hollow pole is sleeved inside the inner hollow pole, and a hook is fixedly connected to the end of the inner hollow pole. The pole also includes: a connecting rod slidably disposed within the outer and inner hollow poles, the end of which extends outward and is slidably connected to a sliding groove on the outer hollow pole; an end cap threaded to the end of the outer hollow pole, with a sleeve fixedly connected to the end cap, and a driving part disposed within the sleeve for driving the connecting rod to move up and down within the outer and inner hollow poles; and a locking buckle hinged to the opening of the hook, the locking end of which abuts against the contact surface of the hook. The end of the connecting rod passes upward through the hook and is hinged to the other end of the locking buckle. When the connecting rod moves upward, the locking buckle is in an unlocked state; when the connecting rod moves downward, the locking buckle is in a locked state.
[0007] To move the locking buckle, preferably, the driving part includes a pressing rod disposed at the end of the sleeve. The pressing rod has multiple sets of protrusions arranged in a ring at equal intervals. The sleeve is provided with a sliding groove that matches the protrusions, and the protrusions are slidably connected in the sliding groove. The end edge of the pressing rod located inside the sleeve is provided with a serrated groove, and the other end of the pressing rod extends outward to the outside of the sleeve.
[0008] To enable the sleeve to have a locking function, the sleeve is further provided with serrated grooves at equal intervals around its end edge, and a rectangular through hole is also provided on the sleeve, which is located between two adjacent serrated grooves and is connected to the sliding groove.
[0009] To establish a locked and unlocked state, preferably, the drive unit also includes a cam movably disposed within the sleeve, with the end of the cam inserted into the pressing rod. The other end of the cam is provided with four sets of serrated plates equidistantly arranged in a ring, with the tips of the serrated plates facing the pressing rod. The corresponding end of the connecting rod is sleeved within the cam. When the cam is located within the pressing rod, the serrated plates abut against the first serrated groove. When the serrated plates are located in the second serrated groove, a first working area is formed. When the serrated plates are located within the rectangular through hole, a second working area is formed.
[0010] To provide a rebound force, preferably, a circular disc is also fixedly connected inside the hollow rod, and the connecting rod is slidably connected to the circular disc. A connecting disc is fixedly connected to the side of the hollow rod near the end cap, and a spring is provided inside the hollow rod, with the two ends of the spring connected to the symmetrical sides of the circular disc and the connecting disc, respectively.
[0011] In order to adjust the outward extension length of the outer hollow rod, preferably, both the inner hollow rod and the outer hollow rod are provided with limiting holes for inserting limiting pins. When the outer hollow rod is inserted into the inner hollow rod, the limiting pin is inserted into the two sets of coaxial limiting holes to form a locking area.
[0012] For connection to a safety rope, preferably, a hook for securing the rope is fixedly connected to the hollow rod.
[0013] Compared with the prior art, this utility model provides a safety pole for high-altitude power operations, which has the following advantages:
[0014] 1. This power high-altitude operation safety pole features a detachable main body. During assembly, the operator can directly insert the outer hollow pole into the inner hollow pole and adjust the outward extension length of the outer hollow pole. Then, the limiting pin is inserted into the two coaxial limiting holes to adjust the length of the main body of the pole. This allows for extension and retraction according to work needs, thereby extending the application range of the fall arrestor and improving its practicality.
[0015] 2. This power high-altitude operation safety pole, through the setting of the drive unit inside the sleeve, can quickly move the locking buckle to make it quickly engage and disengage with the hook, thereby realizing the self-locking function, which is convenient for operators to use at high altitudes, increases applicability, and avoids the possibility of stripping threads that may occur with bolt structures, thus preventing the hook from being unable to open and close due to stripped bolt threads.
[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model effectively improves the ease with which operators can operate the locking buckle when working at heights, thereby ensuring that the safety rod is securely hung on the carrier, guaranteeing the safety of the workers. Furthermore, the safety rod can be quickly removed during the climbing process, further reducing safety risks during construction. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a safety hanging pole for high-altitude power operations proposed in this utility model;
[0018] Figure 2 This is a partial cross-sectional view of a safety pole for high-altitude power operations proposed in this utility model.
[0019] Figure 3 This is a schematic diagram of the sleeve structure of a safety hanging pole for high-altitude power operations proposed in this utility model;
[0020] Figure 4 This is a partial structural diagram of a safety pole for high-altitude power operations proposed in this utility model.
[0021] In the diagram: 1. Hanging rod body; 2. Hook; 3. Connecting rod; 4. Sliding groove; 5. End cap; 6. Sleeve; 7. Locking buckle; 8. Pressing rod; 9. Protrusion; 10. Sliding groove; 11. Serrated groove one; 12. Serrated groove two; 13. Rectangular through hole; 14. Cam; 15. Serrated plate; 16. Circular disc; 17. Connecting disc; 18. Spring; 19. Limiting pin; 20. Limiting hole; 21. Hook. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example
[0024] Reference Figures 1-4 A safety hanging pole for high-altitude power operations includes a main body 1, which is mainly composed of an outer hollow pole and an inner hollow pole. The outer hollow pole is sleeved inside the inner hollow pole, and a hook 2 is fixedly connected to the end of the inner hollow pole. Both the inner and outer hollow poles have limiting holes 20 for inserting limiting pins 19. When the outer hollow pole is inserted into the inner hollow pole, the limiting pins 19 are inserted into the two sets of coaxial limiting holes 20 to form a locking area. A hook 21 for binding ropes is fixedly connected to the inner hollow pole. Here, the diameter of the inner hollow pole is larger than that of the outer hollow pole. Therefore, during assembly, the operator can directly insert the outer hollow pole into the inner hollow pole and adjust the outward extension length of the outer hollow pole before inserting the limiting pins 19 into the two coaxial limiting holes 20 to complete the adjustment of the length of the hanging pole main body 1. It can be extended and retracted according to work needs to extend the range of use of the fall arrestor and has better practicality.
[0025] It also includes a connecting rod 3 that is slidably disposed within the outer hollow rod and the inner hollow rod. The end of the connecting rod 3 extends outward and is slidably connected to the sliding groove 4 opened on the outer hollow rod. A locking buckle 7 is hinged to the opening of the hook 2. The locking end of the locking buckle 7 abuts against the contact surface of the hook 2. The end of the connecting rod 3 passes through the hook 2 upward and is hinged to the other end of the locking buckle 7. When the connecting rod 3 moves upward, the locking buckle 7 is in the unlocked state. When the connecting rod 3 moves downward, the locking buckle 7 is in the locked state. Here, the connecting rod 3 can be disassembled and its length changed. It is used to adapt to different lengths of the hanging rod body 1. Since the length of the hanging rod body 1 is not frequently changed during operation, the replacement of the connecting rod 3 needs to be carried out during the assembly of the hanging rod body 1. The connecting rod 3 can also be set as a telescopic rod, such as a hydraulic rod with a self-locking function. When it is replaced with a hydraulic rod, the movable end of the hydraulic rod needs to be disassembled and installed from the connecting block, and the connecting block is hinged to the locking buckle 7. In this case, the telescopicity of the hydraulic rod can be used to adapt to the adjustment range of the hanging rod body 1.
[0026] Here, when the connecting rod 3 moves upward under the drive of the drive unit, it will cause the end of the locking buckle 7 to move upward, so that the end that abuts against the hook 2 is disengaged, thus completing the quick unlocking. When the connecting rod 3 moves downward under the drive of the drive unit, the end of the locking buckle 7 moves downward, so that it abuts against the hook 2 again, thus completing the locking, which facilitates the operation of the operator when working at height.
[0027] An end cap 5 is threaded onto the end of the outer hollow rod. A sleeve 6 is fixedly connected to the end cap 5. A driving part is provided inside the sleeve 6. The driving part is used to drive the connecting rod 3 to move up and down in the outer and inner hollow rods. The driving part includes a pressing rod 8 provided at the end of the sleeve 6. Multiple sets of protrusions 9 are arranged in a ring at equal intervals on the pressing rod 8. A sliding groove 10 adapted to the protrusions 9 is provided inside the sleeve 6, and the protrusions 9 are slidably connected in the sliding groove 10. A serrated groove 11 is opened on the end edge of the pressing rod 8 inside the sleeve 6. The other end of the pressing rod 8 extends outward to the outside of the sleeve 6. A second serrated groove 12 is arranged in a ring at equal intervals on the end edge of the sleeve 6. A rectangular through hole 13 is also provided on the sleeve 6, and the rectangular through hole 13 is located between two adjacent serrated grooves 12 and communicates with the sliding groove 10. The driving part also includes a cam 14 movably disposed inside the sleeve 6, and the end of the cam 14 is inserted into Inside the pressing rod 8, four sets of serrated plates 15 are equidistantly arranged in a ring at the other end of the cam 14, with the tips of the serrated plates 15 facing the pressing rod 8. The corresponding end of the connecting rod 3 is sleeved inside the cam 14. When the cam 14 is inside the pressing rod 8, the serrated plates 15 abut against the first serrated groove 11. When the serrated plates 15 are located in the second serrated groove 12, a first working area is formed. When the serrated plates 15 are located inside the rectangular through hole 13, a second working area is formed. A circular disk 16 is also fixedly connected inside the hollow rod. The connecting rod 3 is slidably connected to the circular disk 16. A connecting disk 17 is fixedly connected to the side of the hollow rod near the end cap 5. A spring 18 is provided inside the hollow rod, and the two ends of the spring 18 are respectively connected to the symmetrical sides of the circular disk 16 and the connecting disk 17, thereby realizing the ejection and retraction of the connecting plate 3, and further realizing the unlocking and locking of the hook 2 and the locking buckle 7.
[0028] In the initial state, the serrated plate 15 on the cam 14 is positioned in the middle of the serrated groove 11 on the sleeve 6, and the serrated plate 15 is also located in the rectangular through hole 13. When the operator presses down the pressing rod 8, the protrusion 9 on the pressing rod 8 slides down along the slide groove 10, and the cam 14 moves along the pressing rod 8. When the serrated plate 15 disengages from the slide groove 10, it will completely slide into the serrated groove 11 on the sleeve 6. At this time, the operator releases the pressing rod 8, and the pressing rod 8 will move backward under the thrust of the spring 18. The serrated plate 15 will then enter the serrated groove 12 on the sleeve 6 for contact, making it... As the rotation amplitude increases, the serrated groove 12 is closed, so the serrated plate 15 does not reset, causing the connecting rod 3 to remain in an upward-protruding state. When the pressing rod 8 is pressed again, the cam 14 will slide and rotate again, causing the serrated plate 15 in the serrated groove 12 to slide into the rectangular through hole 13, thus resetting the cam 14. The connecting rod 3 slides down to its initial state. The function of the serrated plate 15 is to convert the original linear motion into rotational motion, thereby achieving a self-locking function. This makes it easier for operators to use at high altitudes, increases applicability, and avoids the possibility of stripping due to the use of bolt structures.
[0029] It should be noted that the end of the connecting rod 3 is in an inserted state with the cam 14, so when the cam 14 moves, the connecting rod 3 moves accordingly.
[0030] In this utility model, the operator hangs the safety rope on the hook 21. At this time, the required length of the main body 1 of the hanging rod has been adjusted and locked by the limit pin 19. When it is necessary to unlock the locking buckle 7, when the operator presses down the pressing rod 8, the protrusion 9 on the pressing rod 8 slides down along the slide groove 10, and the cam 14 moves with the pressing rod 8. When the serrated plate 15 disengages from the slide groove 10, the serrated plate 15 will completely slide into the serrated groove 11 on the sleeve 6. At this time, the operator releases the pressing rod 8, and the pressing rod 8 will move backward under the push of the spring 18. The serrated plate 15 will then enter the serrated groove 12 on the sleeve 6, increasing its rotation amplitude. Because of the enclosed design, the serrated plate 15 is not reset, so the connecting rod 3 is always in an upward-protruding state. When the connecting rod 3 is protruding, it will push one end of the locking buckle 7 upward, causing the other end of the locking buckle 7 to disengage from the hook 2 body. The gap formed allows the operator to connect with the hook on the tower body. When the pressing rod 8 is pressed again, the cam 14 will slide and rotate again, causing the serrated plate 15 located in the serrated groove 12 to slide into the rectangular through hole 13, so that the cam 14 is reset. The connecting rod 3 slides down to the initial state, causing the locking buckle 7 to reset as well, forming an enclosed space with the hook 2 again, thus completing the quick unlocking and locking operation, improving the operator's practicality and convenience.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A safety hanging pole for high-altitude power operations, comprising a main body (1), wherein the main body (1) is mainly composed of an outer hollow pole and an inner hollow pole, the outer hollow pole being sleeved inside the inner hollow pole, and a hook (2) being fixedly connected to the end of the inner hollow pole, characterized in that, Also includes: A connecting rod (3) is slidably disposed in the outer hollow rod and the inner hollow rod. The end of the connecting rod (3) extends outward and is slidably connected to the sliding groove (4) opened on the outer hollow rod. The end cap (5) is threaded to the end of the outer hollow rod. A sleeve (6) is fixedly connected to the end cap (5). A driving part is provided inside the sleeve (6). The driving part is used to drive the connecting rod (3) to move up and down in the outer hollow rod and the inner hollow rod. A locking buckle (7) is hinged to the opening of the hook (2). The locking end of the locking buckle (7) abuts against the contact surface of the hook (2). The end of the connecting rod (3) passes through the hook (2) upward and is hinged to the other end of the locking buckle (7). When the connecting rod (3) moves upward, the locking buckle (7) is in the unlocked state. When the connecting rod (3) moves downward, the locking buckle (7) is in the locked state.
2. The safety pole for high-altitude power operations according to claim 1, characterized in that, The driving unit includes a pressing rod (8) disposed at the end of the sleeve (6). Multiple sets of protrusions (9) are arranged in a ring at equal intervals on the pressing rod (8). A sliding groove (10) adapted to the protrusions (9) is provided inside the sleeve (6), and the protrusions (9) are slidably connected in the sliding groove (10). A serrated groove (11) is opened on the end edge of the pressing rod (8) located inside the sleeve (6). The other end of the pressing rod (8) extends outward to the outside of the sleeve (6).
3. A safety pole for high-altitude power operations according to claim 1 or 2, characterized in that, The sleeve (6) has serrated grooves (12) arranged equidistantly on its end edge. The sleeve (6) also has a rectangular through hole (13), which is located between two adjacent serrated grooves (12) and is connected to the slide groove (10).
4. A safety pole for high-altitude power operations according to claim 1, characterized in that, The drive unit also includes a cam (14) movably disposed in the sleeve (6), and the end of the cam (14) is inserted into the pressing rod (8). The other end of the cam (14) is provided with four sets of serrated plates (15) equidistantly arranged in a ring, and the tips of the serrated plates (15) face the pressing rod (8). The corresponding end of the connecting rod (3) is sleeved in the cam (14). When the cam (14) is located in the pressing rod (8), the serrated plates (15) abut against the first serrated groove (11). When the serrated plates (15) are located in the second serrated groove (12), a first working area is formed. When the serrated plates (15) are located in the rectangular through hole (13), a second working area is formed.
5. A safety pole for high-altitude power operations according to claim 1, characterized in that, A circular disc (16) is fixedly connected to the hollow rod. The connecting rod (3) is slidably connected to the circular disc (16). A connecting disc (17) is fixedly connected to the side of the hollow rod near the end cap (5). A spring (18) is provided in the hollow rod, and the two ends of the spring (18) are respectively connected to the symmetrical sides of the circular disc (16) and the connecting disc (17).
6. A safety pole for high-altitude power operations according to claim 1, characterized in that, Both the inner hollow rod and the outer hollow rod are provided with limiting holes (20) for inserting the limiting pin (19). When the outer hollow rod is inserted into the inner hollow rod, the limiting pin (19) is inserted into the two sets of limiting holes (20) on the same axis to form a locking area.
7. A safety pole for high-altitude power operations according to claim 1, characterized in that, The hollow rod is fixedly connected with a hook (21) for binding ropes.