Interphase spacer hoisting reciprocating tightening device and falling positioning assembly
Through innovative design of the clamping and power components, the worm gear and electromagnet are used to achieve secure clamping of the cable and detachment of the power source, solving the problems of insecure clamping and inability to retract the power source in existing technologies, thus improving operational efficiency and resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- STATE GRID TIBET ELECTRIC POWER CO LTD NAGQU POWER SUPPLY CO
- Filing Date
- 2025-05-14
- Publication Date
- 2026-07-14
AI Technical Summary
The existing spacer lifting device does not clamp the cable securely and the power source cannot be detached, making it impossible to recycle the power source.
The design employs a clamping assembly and a power assembly. The worm gear and worm wheel drive a double-ended lead screw to achieve unidirectional movement and clamping of the clamping block. Combined with the cooperation of an electromagnet and a fixing rod, the power assembly is disengaged from the clamping assembly. The power source is recovered by controlling the servo motor and the drone.
It achieves secure cable clamping and power source reuse, ensuring clamping stability, and improves operational efficiency by using drones to retrieve the power components.
Smart Images

Figure CN224502741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power protection technology, specifically to a reciprocating clamping device for hoisting interphase spacer bars and a falling positioning component. Background Technology
[0002] Spacer bars are devices installed on split conductors to fix the spacing between them, preventing conductors from whipping each other and suppressing aerodynamic vibrations and secondary span oscillations. Existing spacer bars are installed by drone hoisting. When fixing cables to the spacer bars, the cables are clamped. After clamping, the power source is no longer working. At this time, because the surface protection of the cable is elastic, it will move against the clamping block, making the clamping firmness insufficient. At the same time, the power source of the existing spacer bars is fixed to the spacer bars and cannot be detached. The power source is on the spacer bars and cannot be recycled. Utility Model Content
[0003] To address the above problems, this utility model provides a reciprocating clamping device for hoisting interphase spacer bars and a falling positioning component, thus solving the aforementioned issues.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a reciprocating clamping device for hoisting interphase spacer bars and a falling positioning assembly, comprising spacer bars, clamping assemblies fixed at the left and right ends of the spacer bars, a power assembly fixed on one side of each clamping assembly, a control servo motor fixed at the upper end of each power assembly, and the lower end of each control servo motor connected to the spacer bars via ropes.
[0005] The clamping assembly includes a fixing plate fixedly connected to a spacer bar. Positioning plates are fixed to both the front and rear ends of the fixing plate. A double-ended lead screw is rotatably connected to the lower end of the fixing plate. Two symmetrical clamping blocks are threaded onto the double-ended lead screw. A fixing frame for fixing the power assembly is fixed to the front end of the fixing plate. Two symmetrical fixing rods are fixed on the fixing frame.
[0006] The power assembly includes a fixed frame, an electric wrench is fixed to the lower end of the fixed frame, electromagnets are fixed to the four corners of the front end of the fixed frame, a fixed rod is slidably connected inside each electromagnet, a fixed spring is provided on each fixed rod, one end of the fixed rod is inserted into a fixed rod, and the electric wrench is connected to a double-ended lead screw drive.
[0007] Preferably, a worm gear is rotatably connected to the fixed plate, a worm wheel is provided on the double-ended lead screw, the worm gear is connected to the double-ended lead screw through the worm wheel, a spring seat is provided on the outer side of the end of the worm gear near the fixed frame, the spring seat is fixed on the fixed frame, and a square groove is formed at the front end of the worm gear.
[0008] Preferably, the output end of the electric wrench is fixed with a square head, which is inserted into the square groove of the worm gear. The electric wrench is driven by the worm gear, and a release spring is provided on the square head.
[0009] Preferably, one end of an L-shaped connecting rod is fixed to the upper end of the fixed frame, and the other end of the connecting rod is fixed to the control servo motor.
[0010] Preferably, the two clamping blocks are provided with arc grooves on opposite sides, and the clamping blocks are located between two positioning plates.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. The double-ended lead screw is rotated by the worm gear and worm wheel. Since the two clamping blocks are threaded to the double-ended lead screw, the two clamping blocks move in opposite directions to clamp the cable. Because the worm gear and worm wheel have a unidirectional transmission effect, the cable will not push against the clamping blocks and cause the two clamping blocks to move away from each other after the clamping blocks clamp the cable, thus ensuring the cable is firmly fixed.
[0013] 2. By using an electromagnet, a fixing rod, and a fixing spring in conjunction, the power component and the clamping component can be separated, allowing the electric wrench to be detached and reused. The square head and worm gear are connected for transmission, and a separation spring is installed between them. After the fixing rod is detached from the fixing rod, the separation spring will push against the square head, causing the entire clamping component to separate from the clamping component. At the same time, the power component and the control servo are connected by a connecting rod, which is convenient for bringing the power component and the control servo back by drone. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a partial schematic diagram of the present invention;
[0016] Figure 3 This is a schematic diagram of the clamping component of this utility model;
[0017] Figure 4 This is a schematic diagram of the power component of this utility model.
[0018] The diagram is labeled as follows: 1. Spacer bar; 2. Clamping assembly; 3. Power assembly; 4. Control servo motor; 21. Fixing plate; 22. Positioning plate; 23. Clamping block; 24. Double-ended lead screw; 25. Fixing frame; 26. Spring seat; 27. Worm gear; 31. Fixing frame; 32. Electric wrench; 33. Electromagnet; 34. Fixing bar; 35. Fixing spring; 36. Square head; 37. Separation spring; 41. Connecting rod; 251. Fixing rod. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] Please see Figure 1 , Figure 2 and Figure 3 The device includes a reciprocating clamping and lowering positioning assembly for hoisting interphase spacer bars, comprising a spacer bar 1. Clamping assemblies 2 are fixed to both ends of the spacer bar 1. A power assembly 3 is fixed to one side of each clamping assembly 2. A control servo motor 4 is fixed to the upper end of each power assembly 3. The lower end of the control servo motor 4 is connected to the spacer bar 1 via a rope. The length of the spacer bar 1 is consistent with the length of the cable spacing. The clamping assemblies 2 clamp the cables to prevent them from becoming too close together due to insecure fixing. The power assembly 3 cooperates with the clamping assemblies 2 to clamp the cables, ensuring their secure fixing. The control servo motor 4 is an existing device used to hoist the control power assembly 3, allowing the rope at the lower end of the control servo motor 4 to detach from the spacer bar 1; further details are omitted here.
[0021] Please see Figure 2 , Figure 3 and Figure 4The clamping assembly 2 includes a fixed plate 21 fixedly connected to the spacer 1. Positioning plates 22 are fixed to both the front and rear ends of the fixed plate 21. A double-ended lead screw 24 is rotatably connected to the lower end of the fixed plate 21. Two symmetrical clamping blocks 23 are threaded onto the double-ended lead screw 24. The opposite sides of the two clamping blocks 23 are provided with arc grooves, making the opposite sides of the clamping blocks 23 arc-shaped. When clamping the cable through the clamping blocks 23, the cable can be firmly clamped between the two clamping blocks 23, preventing the cable from slipping out during clamping. The clamping blocks 23 are located between the two positioning plates 22, and the positioning plates 22 limit the clamping blocks 23, preventing them from rotating when the double-ended lead screw 24 moves them, thus preventing the clamping blocks 23 from failing to clamp the cable. A fixing frame 25 for fixing the power assembly 3 is fixed to the front end of the fixed plate 21. Two symmetrical fixing rods 25 are fixed on the fixing frame 25. 1. A worm gear 27 is rotatably connected to the fixed plate 21, and a worm wheel is provided on the double-ended lead screw 24. The worm gear 27 is connected to the double-ended lead screw 24 through the worm wheel. The worm gear 27 and the worm wheel drive the double-ended lead screw 24 to rotate. Since the two clamping blocks 23 are threadedly connected to the double-ended lead screw 24, the two clamping blocks 23 move in opposite directions to clamp the cable. Because the worm gear 27 and the worm wheel have a unidirectional transmission effect, the cable will not be pushed off the plate after the clamping blocks 23 clamp it. The clamping blocks 23 keep the two clamping blocks 23 away from each other, ensuring the cable is firmly fixed. The worm gear 27 has a spring seat 26 on the outer side of the end near the fixing frame 31. The spring seat 26 is fixed on the fixing frame 25. The front end of the worm gear 27 has a square groove. The electric wrench 32 is inserted into the square groove of the worm gear 27 through the square head 36, so that the output end of the electric wrench 32 can drive the worm gear 27, thereby bringing the two clamping blocks 23 closer to each other and clamping the cable.
[0022] Please see Figure 2 , Figure 3 and Figure 4The power assembly 3 includes a fixed frame 31. One end of an L-shaped connecting rod 41 is fixed to the upper end of the fixed frame 31, and the other end of the connecting rod 41 is fixed to the control servo motor 4. An electric wrench 32 is fixed to the lower end of the fixed frame 31. Electromagnets 33 are fixed to the four corners of the front end of the fixed frame 31. A fixing rod 34 is slidably connected inside each electromagnet 33, and a fixing spring 35 is provided on each fixing rod 34. Through the cooperation of the electromagnets 33, fixing rods 34, and fixing springs 35, the power assembly 3 is detached from the clamping assembly 2, allowing the electric wrench 32 to be removed and reused. Simultaneously, a square head 36 is inserted into a worm gear 27 for transmission, with a release spring 37 between them. After the fixing rod 34 detaches from the fixing rod 251, the release spring 37 pushes against the square head 36, causing the clamping assembly 2 to detach entirely from the clamping assembly 2. The connecting rod 41 connects the power assembly 3 and the control servo motor 4, facilitating the use of a drone to connect the power assembly 3 and the control servo motor. The servo motor 4 returns, and one end of the fixed rod 34 is inserted into the fixed rod 251. The electric wrench 32 is connected to the double-ended lead screw 24. The output end of the electric wrench 32 is fixed with a square head 36, which is inserted into the square slot of the worm gear 27. The electric wrench 32 and the worm gear 27 are driven together. The square head 36 is provided with a release spring 37. When the power assembly 3 is disengaged from the clamping assembly 2, the electromagnet 33 is controlled by the servo motor 4 to work. The electromagnet 33 will hold the fixed rod 251. The fixed rod 34 is attracted, causing it to move out of the fixed rod 251. At the same time, the fixed spring 35 is compressed, which releases the connection between the clamping assembly 2 and the power assembly 3. After the connection is released, the separation spring 37 pushes the square head 36 away from the worm 27, so that the electric wrench 32 no longer drives the worm 27, realizing the separation of the electric wrench 32 from the worm 27. The control servo motor 4 then disconnects the rope and is no longer connected to the spacer bar 1. The drone then lifts the control servo motor 4 and the power assembly 3 to leave.
[0023] When using this utility model:
[0024] First, the device is lifted by a drone and hovered at the top of the cable;
[0025] Then, the drone is controlled to fall, so that the clamping components 2 at both ends are located at the upper end of the cable, and the drone is controlled to fall so that the cable is located between the clamping blocks 23. The electric wrench 32 is remotely controlled by the servo motor 4 to work. The output end of the electric wrench 32 drives the worm 27 to rotate, and the worm 27 drives the double-ended screw 24 to rotate.
[0026] Next, the two clamping blocks 23 clamp and fix the cable. After fixing, the electromagnet 33 is controlled by the control servo motor 4 to work. The electromagnet 33 attracts the fixing rod 34, causing the fixing rod 34 to move out of the fixing rod 251. At the same time, the fixing spring 35 is compressed, and the connection between the clamping assembly 2 and the power assembly 3 is released.
[0027] Finally, after disconnection, the release spring 37 will push the square head 36 away from the worm 27, so that the electric wrench 32 will no longer transmit power to the worm 27, thus disengaging the electric wrench 32 from the worm 27. The control servo motor 4 will then disconnect the rope and no longer connect to the spacer bar 1, and then the drone will lift the control servo motor 4 and the power unit 3 away.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reciprocating clamping device for hoisting interphase spacers and a falling positioning assembly, characterized in that: Includes a spacer bar (1), with clamping components (2) fixed to the left and right ends of the spacer bar (1), and a power component (3) fixed to one side of each clamping component (2). A control servo motor (4) is fixed to the upper end of each power component (3), and the lower end of the control servo motor (4) is connected to the spacer bar (1) by a rope. The clamping assembly (2) includes a fixing plate (21) fixedly connected to the spacer (1). The front end and rear end of the fixing plate (21) are both fixed with positioning plates (22). The lower end of the fixing plate (21) is rotatably connected with a double-ended lead screw (24). The double-ended lead screw (24) has two left-right symmetrical clamping blocks (23) threaded on it. The front end of the fixing plate (21) is fixed with a fixing frame (25) for fixing the power assembly (3). The fixing frame (25) has two left-right symmetrical fixing rods (251). The power assembly (3) includes a fixed frame (31), an electric wrench (32) is fixed at the lower end of the fixed frame (31), an electromagnet (33) is fixed at each of the four corners of the front end of the fixed frame (31), a fixed rod (34) is slidably connected inside the electromagnet (33), a fixed spring (35) is provided on the fixed rod (34), one end of the fixed rod (34) is inserted into the fixed rod (251), and the electric wrench (32) is connected to the double-ended lead screw (24) for transmission.
2. The reciprocating clamping device for hoisting interphase spacer bars and the falling positioning assembly according to claim 1, characterized in that: A worm gear (27) is rotatably connected to the fixed plate (21). A worm wheel is provided on the double-ended lead screw (24). The worm gear (27) is connected to the double-ended lead screw (24) through the worm wheel. A spring seat (26) is provided on the outer side of the end of the worm gear (27) near the fixed frame (31). The spring seat (26) is fixed on the fixed frame (25). A square groove is formed at the front end of the worm gear (27).
3. The reciprocating clamping device for hoisting interphase spacers and the falling positioning assembly according to claim 1, characterized in that: The output end of the electric wrench (32) is fixed with a square head (36), which is inserted into the square groove of the worm (27). The electric wrench (32) and the worm (27) are driven together. The square head (36) is provided with a release spring (37).
4. The reciprocating clamping device for hoisting interphase spacer bars and the falling positioning assembly according to claim 1, characterized in that: The upper end of the fixed frame (31) is fixed with one end of an L-shaped connecting rod (41), and the other end of the connecting rod (41) is fixed to the control servo (4).
5. The reciprocating clamping device for hoisting interphase spacers and the falling positioning assembly according to claim 1, characterized in that: The two clamping blocks (23) are provided with arc grooves on opposite sides, and the clamping blocks (23) are located between the two positioning plates (22).