Extra-high voltage double-plate type thermal expansion sleeve strain clamp

Abstract

The invention discloses an extra-high voltage double-plate type thermal expansion sleeve strain clamp which comprises an aluminum pipe body, a steel anchor used for fixing a wire is arranged in the aluminum pipe body, a fixing ring is arranged at the end of the steel anchor, a connecting cylinder is fixedly arranged on the steel anchor, the aluminum pipe body is sleeved with a connecting sleeve, and a drainage plate is fixedly connected to the bottom of the connecting sleeve. A connecting assembly is arranged in the drainage plate, the drainage plate is fixedly connected with a drainage wire clamp through the connecting assembly, the bottom end of the drainage wire clamp is fixedly connected with a limiting ring, a positioning plate is arranged in the sliding groove in a penetrating mode, and a guiding mechanism used for guiding and limiting the positioning plate is arranged in the sliding groove. According to the extra-high voltage double-plate type thermal expansion sleeve strain clamp, through the cooperation of the positioning plate and the chute, multi-branch power supply is facilitated, the flexibility is improved, the reliability and the anti-risk capability are improved, the power supply requirements of complex scenes such as a power distribution area and a multi-user branch line can be met, main line fixation and multi-branch drainage connection can be completed at a time, and the power supply efficiency is improved. And the occupied space is small, and the circuit layout can be optimized.

Description

Technical Field

[0001] This invention relates to the field of power transmission and distribution technology, specifically to an ultra-high voltage double-plate thermal expansion sleeve tension clamp. Background Technology

[0002] In power transmission and distribution systems, tension clamps are key hardware used to fix conductors and bear conductor tension. They are mainly installed in tension sections, angle towers, and terminal towers of transmission lines to connect conductors to tension insulator strings or tower crossarms. They serve the dual functions of mechanical fixing and electrical current conduction, and are key components to ensure the stability of the line structure and current transmission. They can firmly fix the conductors, bear the full tension of the conductors, prevent the conductors from loosening or falling off due to tension, ensure the geometric stability of the line under extreme operating conditions, and avoid large swings or breakage of the conductors.

[0003] A Chinese patent with publication number CN117477470A discloses a tension clamp, which includes an aluminum tube and a steel anchor. The aluminum tube includes a crimping section with an installation channel running along its axis. The crimping section includes a steel anchor crimping section. The steel anchor has crimping protrusions, and a portion of the steel anchor can be inserted into the installation channel, corresponding to the steel anchor crimping section. A first positioning line is provided on the outer circumference of the steel anchor crimping section, located within the area corresponding to the crimping protrusions. This positioning line is used for positioning the crimping equipment. This design eliminates the need for workers to mark lines when crimping the steel anchor and aluminum tube, thus improving work efficiency. Furthermore, it ensures the accuracy of the crimping position, effectively solving the problem of missed crimping and guaranteeing the mechanical load-bearing capacity of the steel anchor and aluminum tube after crimping, thereby improving the crimping quality.

[0004] Existing tension clamps are mostly designed based on the traditional single-circuit power transmission requirements, generally adopting a single-path current-carrying and anchoring architecture. They neither reserve interfaces for multiple branch conductors nor have a current-sharing structure design adapted to parallel power supply. This makes it difficult to directly achieve synchronous anchoring and current distribution of multiple branch conductors. This design shortcoming significantly reduces their adaptability in scenarios such as power grid optimization, distributed power source integration, and emergency power supply switching. It not only requires additional switching hardware and current-sharing equipment but also increases the number of line joints and potential fault points, ultimately restricting the flexibility and ease of operation and maintenance of the power transmission system. Therefore, it is necessary to develop a new type of double-plate thermal expansion sleeve tension clamp to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an ultra-high voltage double-plate thermal expansion sleeve tension clamp to solve the problems mentioned in the background art.

[0006] A double-plate thermal expansion sleeve tension clamp for ultra-high voltage includes an aluminum tube body. A steel anchor for fixing a conductor is disposed inside the aluminum tube body. A fixing ring is disposed at the end of the steel anchor. A connecting cylinder is fixedly disposed on the steel anchor. A connecting sleeve is fitted onto the aluminum tube body. A drain plate is fixedly connected to the bottom of the connecting sleeve. A connecting assembly is disposed inside the drain plate. A drain clamp is fixedly connected to the drain plate through the connecting assembly. A limit ring is fixedly connected to the bottom of the drain clamp. A sliding groove is fixedly connected to the drain clamp. A positioning plate passes through the sliding groove. A guiding mechanism for guiding and limiting the positioning plate is disposed inside the sliding groove. A positioning mechanism for positioning the positioning plate is disposed on the sliding groove. A cylinder for fixing a conductor is disposed at the center of the positioning plate. A frame is symmetrically disposed inside the positioning plate, and the frame is located on one side of the cylinder. A limiting mechanism for fixing the conductor inside the cylinder is disposed inside the frame. A monitoring mechanism for monitoring the position of the conductor inside the drain clamp is disposed on the sliding groove.

[0007] Preferably, the connecting assembly includes a positioning bolt and a connecting plate. The connecting plate is disposed inside the diversion plate, and the positioning bolt is disposed on the diversion plate and passes through the connecting plate. The diversion plate has a double-plate structure, and a circular ring is inserted inside the diversion clamp. A plate is fixedly connected to the end of the circular ring.

[0008] Preferably, the positioning mechanism includes a concave frame, a limiting bolt, a positioning post, and a threaded hole. The concave frame is fixedly mounted on the slide groove. The limiting bolt passes through the inside of the concave frame. The threaded hole corresponding to the limiting bolt is located inside the positioning plate and is connected to the cylinder. The outer surface of the limiting bolt is threadedly connected to the threaded hole. The positioning post is fixedly mounted at the bottom end of the limiting bolt.

[0009] Preferably, the guiding mechanism includes a guide groove and a guide plate. The guide groove is symmetrically arranged on the positioning plate, the guide plate is engaged inside the guide groove, and the guide plate is fixedly connected to the inner wall of the groove.

[0010] Preferably, the limiting mechanism includes a guide shaft, a sliding block, a clamping block, a wear-resistant layer, and a driving assembly. The guide shaft is symmetrically arranged inside the frame, the sliding block is arranged inside the frame and the guide shaft passes through the sliding block, the clamping block is fixedly arranged on the sliding block, the wear-resistant layer is arranged on the clamping block, a first spring is arranged around the guide shaft, one end of the first spring is fixedly connected to the sliding block, and the other end of the first spring is fixedly connected to the inner wall of the frame. The driving assembly for driving the movement of the sliding block is arranged inside the frame. The driving assembly includes a support shaft, a conical block, and a pressure block. The support shaft is fixedly arranged inside the frame, the conical block is arranged inside the frame and one side of the conical block is rotatably connected to the support shaft. One side of the conical block extends into the guide groove, and the pressure block is fixedly connected to the conical block and is located on one side of the sliding block.

[0011] Preferably, the monitoring mechanism includes a square frame, an observation window, an indicator block, and a display panel. The square frame is fixedly installed at one end of the slide groove. The drain clamp is provided with a through groove corresponding to the square frame, and the through groove is located on one side of the plate. An observation window is provided at the top of the square frame. A support block is fixedly installed on the inner wall of the square frame. The indicator block is installed inside the square frame and is located directly below the observation window. The support block is located below the indicator block. The display panel is fixedly installed on the top of the indicator block.

[0012] Preferably, the indicator block is provided with an array of guide cylinders inside, and a limiting shaft is passed through the guide cylinder. One end of the limiting shaft is fixedly connected to the inner wall of the square frame. A second spring is arranged around the limiting shaft. One end of the second spring is fixedly connected to the inner wall of the square frame, and the other end of the second spring is fixedly connected to the side of the indicator block.

[0013] Preferably, a square groove is fixedly provided at the bottom of the indicator block, a No. 3 spring is fixedly provided inside the square groove, a baffle is provided inside the square groove, and the end of the No. 3 spring is fixedly connected to the baffle.

[0014] Preferably, the inner wall of the square frame is fixedly provided with a slot, a No. 4 spring is fixedly provided inside the slot, a load-bearing plate passes through the slot, and the end of the No. 4 spring is fixedly connected to the load-bearing plate. The baffle is located above the load-bearing plate, a push plate is fixedly provided on the load-bearing plate, a locking block is fixedly provided on the push plate, a limiting groove corresponding to the push plate is provided inside the square frame, and the push plate passes through the limiting groove. A push block passes through the sliding groove, and the side of the push block is fixedly connected to the push plate.

[0015] Preferably, a traction rope is fixedly connected to the side of the baffle, and a pull block is provided on the top of the square frame, with the end of the traction rope fixedly connected to the pull block.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The ultra-high voltage double-plate thermal expansion sleeve tension clamp of the present invention, through the combination of the positioning plate and the sliding groove, facilitates power supply to multiple branches, improves flexibility, and enhances the reliability and risk resistance of the power grid. After the diversion conductor used for the branch is inserted into the cylinder, the positioning plate can be positioned by the positioning mechanism, and the position of the conductor inside the cylinder can also be positioned. The diversion clamp, the sliding groove and the positioning plate work together to divert power to the conductor to supply power to the branch, adapting to the power supply needs of multiple branch lines, improving the safety and efficiency of construction and operation. Compared with ordinary tension clamps, no additional conversion is required, which can meet the power supply needs of complex scenarios such as distribution substations and multi-user branch lines. It can complete the main line fixing and multiple branch diversion connection at one time, and the structure is more compact, occupies less space, optimizes the line layout, reduces the risk of friction and collision between conductors, and facilitates subsequent line inspection and maintenance.

[0017] 2. The ultra-high voltage double-plate thermal expansion sleeve tension clamp of the present invention can effectively improve the stability of branch line connection through the setting of clamping block and conical block, and ensure the stability of power supply. The linkage structure of clamping block and conical block can significantly enhance the stability of branch line connection. When the positioning plate is fully inserted into the slide groove, the guide plate applies pressure to the conical block to make it rotate around the support shaft. Through the pressure block transmission, the sliding block is driven to move smoothly along the guide shaft, and finally pushes the clamping block to cooperate with the wear-resistant layer, firmly fixing the conductor inside the cylinder and ensuring stable power supply.

[0018] 3. The ultra-high voltage double-plate thermal expansion sleeve tension clamp of this invention facilitates monitoring of the position of the main conductor by setting indicator blocks and baffles, preventing the failure to detect conductor loosening in a timely manner, and improving the reliability of power grid supply. The baffle is located on one side of the plate. When the conductor accidentally loosens and slides outward, the ring will drive the plate to move, and the movement of the plate will push the baffle to move. The square groove will drive the indicator block and display plate to move. Inspection personnel can easily observe the position of the display plate through the observation window, and can see whether the indicator block has moved, thereby judging whether the conductor is loose. It can effectively avoid large-scale power outages caused by conductor detachment and short circuits. Especially for the main grid and important load power supply lines, it can effectively improve the reliability of power grid supply, and can detect and deal with problems in a timely manner, preventing small problems from developing into serious faults such as conductor strand breakage and hardware damage. If repairs are carried out after a fault occurs, not only will more manpower, material resources, and financial resources be invested, but also high power outage losses will occur.

[0019] 4. The ultra-high voltage double-plate thermal expansion sleeve tension clamp of this invention can effectively improve power supply stability through the setting of the connecting sleeve and the current-draining plate. The connecting sleeve on the current-draining plate is heated, and the principle of thermal expansion and contraction is used to make the connecting sleeve fit onto the aluminum tube body, fixing the current-draining plate in a designated position on the aluminum tube body. After cooling, the connecting sleeve on the current-draining plate and the aluminum tube body have an interference fit, which enhances the electrical contact surface of the tension clamp and effectively avoids the problem of poor conductivity of the electrical contact surface of the tension clamp. Moreover, the current-draining plate has a double plate structure. The connection between the current-draining plate and the current-draining clamp can make the conductor receive uniform clamping force, avoiding problems such as excessive local stress and breakage of the current-draining plate. The installation and disassembly process is simple and quick, which is convenient for construction and maintenance. It increases the electrical contact surface, improves conductivity, improves the wear resistance and corrosion resistance of the tension clamp itself, and extends its service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the ultra-high voltage double-plate thermal expansion sleeve tension clamp of the present invention.

[0021] Figure 2 This is a schematic diagram of the aluminum tube body structure of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the steel anchor and connecting cylinder of the present invention.

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the drainage plate of the present invention.

[0024] Figure 5 This is a schematic diagram of the connection structure between the slide and the concave frame of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the positioning plate of the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of the chute and guide plate of the present invention.

[0027] Figure 8 This is a cross-sectional view of the positioning plate and frame structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the three-dimensional structure of the cone-shaped block of the present invention.

[0029] Figure 10 This is a schematic diagram of the three-dimensional structure of the clamping block of the present invention.

[0030] Figure 11 This is a schematic diagram of the square frame structure of the present invention.

[0031] Figure 12 This is a schematic diagram of the square groove and baffle structure of the present invention.

[0032] Figure 13 This is a schematic diagram of the three-dimensional structure of the threaded rod and rectangular fixing groove of the present invention.

[0033] Figure 14 This is a schematic diagram of the load-bearing plate structure of the present invention.

[0034] Figure 15 This is a schematic diagram of the three-dimensional structure of the indicator block of the present invention.

[0035] Figure 16 This is a schematic diagram of the ring and plate structure of the present invention.

[0036] In the diagram: 1. Aluminum tube body; 2. Steel anchor; 3. Connecting cylinder; 4. Fixing ring; 5. Connecting sleeve; 6. Drainage plate; 7. Positioning bolt; 8. Connecting plate; 9. Drainage clamp; 10. Limiting ring; 11. Slide groove; 12. Concave frame; 13. Positioning plate; 14. Limiting bolt; 15. Positioning post; 16. Cylinder; 17. Threaded hole; 18. Guide groove; 19. Guide plate; 20. Frame; 21. Support shaft; 22. Conical block; 23. Spring No. 1; 24. Guide shaft; 25. Sliding block; 26. 27. Clamping block; 28. Square frame; 29. ​​Through slot; 30. Observation window; 31. Support block; 32. Indicator block; 33. Display panel; 34. Guide cylinder; 35. Limiting shaft; 36. Spring No. 2; 37. Square slot; 38. Spring No. 3; 39. Baffle; 40. Slot; 41. Spring No. 4; 42. Load-bearing plate; 43. Push plate; 44. Clamping block; 45. Limiting slot; 46. Pushing block; 47. Ring; 48. Plate; 49. Pulling block; 50. Traction rope; 51. Wear-resistant layer; 52. Pressure block. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-16This invention provides a technical solution: an ultra-high voltage double-plate thermal expansion sleeve tension clamp, comprising an aluminum tube body 1, a steel anchor 2 for fixing the conductor is provided inside the aluminum tube body 1, a fixing ring 4 is provided at the end of the steel anchor 2, a connecting cylinder 3 is fixedly provided on the steel anchor 2, a connecting sleeve 5 is sleeved on the aluminum tube body 1, a drain plate 6 is fixedly connected to the bottom of the connecting sleeve 5, a connecting assembly is provided inside the drain plate 6, a drain clamp 9 is fixedly connected to the drain plate 6 through the connecting assembly, a limit ring 10 is fixedly connected to the bottom of the drain clamp 9, and a sliding groove 1 is fixedly connected to the drain clamp 9. 1. A positioning plate 13 is inserted inside the slide groove 11. A guide mechanism for guiding and limiting the positioning plate 13 is provided inside the slide groove 11. A positioning mechanism for positioning the positioning plate 13 is provided on the slide groove 11. A cylinder 16 for fixing the wire is provided at the center of the positioning plate 13. A frame 20 is symmetrically arranged inside the positioning plate 13, and the frame 20 is located on one side of the cylinder 16. A limiting mechanism for fixing the wire inside the cylinder 16 is provided inside the frame 20. A monitoring mechanism for monitoring the position of the wire inside the drain clamp 9 is provided on the slide groove 11. Before fixing the conductor using the UHV double-plate thermal expansion sleeve tension clamp, the connecting sleeve 5 on the drain plate 6 is heated with a tool. Utilizing the principle of thermal expansion and contraction, the connecting sleeve 5 is fitted onto the aluminum tube body 1, fixing the drain plate 6 at the designated position on the aluminum tube body 1. After cooling, the connecting sleeve 5 on the drain plate 6 and the aluminum tube body 1 have an interference fit, enhancing the electrical contact surface of the tension clamp and effectively avoiding poor conductivity issues. The drain plate 6 has a double-plate structure. When fixing the conductor and bearing conductor tension, the conductor is fixedly connected to the connecting cylinder 3 on the steel anchor 2. Then, the steel anchor 2 is partially moved into the aluminum tube body 1, and the aluminum tube body 1 is fixedly connected to the steel anchor 2 using a tool (existing technology). Later, the workpiece is used in conjunction with the fixing ring 4 on the steel anchor 2 to fix the position of the UHV double-plate thermal expansion sleeve tension clamp, thereby achieving the purpose of fixing the conductor and bearing conductor tension. The drain plate 6 has a double-plate structure, through the drain plate 6 and... The connection of the drain clamp 9 ensures that the conductor is subjected to uniform clamping force, avoiding excessive local stress and problems such as breakage of the drain plate 6. The positioning bolts 7 are used to fix the drain plate 6 and the drain clamp 9, making the installation and disassembly process simple and quick, facilitating construction and maintenance. At the same time, the setting of the connecting sleeve 5 makes the drain plate 6 more secure, increases the electrical contact surface, improves conductivity, improves the wear resistance and corrosion resistance of the tension clamp itself, and extends its service life. When the drain clamp 9 connects the conductor to guide the current to other circuits, one end of the power supply conductor enters the inside of the ring 46. With the help of tools, the conductor is fixedly connected to the ring 46. Then, it enters the inside of the drain clamp 9 through the limiting ring 10. The conductor pushes the ring 46 and the plate 47 to move. After the plate 47 moves to one side of the through groove 28, the limiting ring 10 is pressed with a hydraulic tool to fix the limiting ring 10 to the conductor. This fixes the conductor that has entered the drain clamp 9, allowing the conductor to be drained. When multiple branch lines are required for power supply, the lead wires used for the branch lines are inserted into the cylinder 16. With the help of the guide mechanism, the positioning plate 13 can slide inside the slide groove 11. After the positioning plate 13 is fully inserted into the slide groove 11, the positioning mechanism can position the positioning plate 13 and the lead wire inside the cylinder 16. The lead wire clamp 9, the slide groove 11 and the positioning plate 13 work together to lead the power to the lead wire to supply power to the branch lines. This adapts to the power supply needs of multiple branch lines, improves the safety and efficiency of construction and operation. Compared with ordinary tension clamps, no additional conversion is required. It can meet the power supply needs of complex scenarios such as distribution substations and multi-user branch lines. It can complete the main line fixing and multiple branch line connection at one time, reduce construction procedures and accessory procurement costs, and shorten the operation time. It is especially suitable for scenarios with limited working conditions such as high altitude and field. Moreover, the structure is more compact and occupies less space. It can optimize the line layout, reduce the risk of friction and collision between lead wires, and facilitate subsequent line inspection and maintenance. After the positioning plate 13 is fully inserted into the slide groove 11, it will drive the limiting mechanism to move, further limiting and fixing the wires inside the cylinder 16, improving the stability of the connection. At the same time, it will cause the monitoring mechanism to move to monitor the position of the drain wire inside the drain clamp 9. This will make it easier for inspectors to judge whether the drain wire is loose or displaced during inspections, effectively avoiding large-scale power outages caused by wire detachment or short circuits. Especially for the main grid and important load power supply lines, it can effectively improve the reliability of power grid supply, allowing for timely detection and handling, and preventing small problems from developing into serious faults such as broken wire strands or damaged hardware. If repairs are only carried out after a fault occurs, not only will more manpower, material resources, and financial resources be required, but also high power outage losses will occur.

[0039] Furthermore, the connecting assembly includes a positioning bolt 7 and a connecting plate 8. The connecting plate 8 is disposed inside the diversion plate 6, and the positioning bolt 7 is disposed on the diversion plate 6 and passes through the connecting plate 8. The diversion plate 6 has a double plate structure, and a ring 46 passes through the inside of the diversion clamp 9. A plate 47 is fixedly connected to the end of the ring 46. When using the ultra-high voltage double-plate thermal expansion sleeve tension clamp, when connecting the diversion plate 6 and the diversion clamp 9, insert the connecting plate 8 into the inside of the diversion plate 6, align the preset holes, then pass the positioning bolt 7 through the hole, and use a nut and washer to connect with the positioning bolt 7, thereby fixing the diversion plate 6 and the diversion clamp 9 together.

[0040] Furthermore, the positioning mechanism includes a concave frame 12, a limiting bolt 14, a positioning post 15, and a threaded hole 17. The concave frame 12 is fixedly mounted on the slide groove 11. The limiting bolt 14 passes through the concave frame 12. The threaded hole 17 corresponding to the limiting bolt 14 is located inside the positioning plate 13, and the threaded hole 17 is connected to the cylinder 16. The outer surface of the limiting bolt 14 is threadedly connected to the threaded hole 17. The positioning post 15 is fixedly mounted at the bottom end of the limiting bolt 14. After the positioning plate 13 is fully inserted into the slide groove 11, the threaded hole 17 will be aligned with the limiting bolt 14. Rotating the limiting bolt 14 will make the limiting bolt 14 threadedly connected to the threaded hole 17, thus positioning the position of the positioning plate 13. After the limiting bolt 14 is threadedly connected to the threaded hole 17, the positioning pin 15 can be inserted into the cylinder 16. The positioning pin 15 can limit and clamp the position of the wire inside the cylinder 16, thereby improving the stability of the wire inside the cylinder 16.

[0041] Furthermore, the guiding mechanism includes a guide groove 18 and a guide plate 19. The guide groove 18 is symmetrically arranged on the positioning plate 13, and the guide plate 19 is engaged inside the guide groove 18 and is fixedly connected to the inner wall of the slide groove 11. When the positioning plate 13 moves, it will cause the guide groove 18 to slide on the guide plate 19. The guide groove 18 and the guide plate 19 cooperate to guide the positioning plate 13, so that the positioning plate 13 moves smoothly and improves flexibility.

[0042] Furthermore, the limiting mechanism includes a guide shaft 24, a sliding block 25, a clamping block 26, a wear-resistant layer 50, and a drive assembly. The guide shaft 24 is symmetrically arranged inside the frame 20, the sliding block 25 is arranged inside the frame 20, and the guide shaft 24 passes through the sliding block 25. The clamping block 26 is fixedly arranged on the sliding block 25, and the wear-resistant layer 50 is arranged on the clamping block 26. A first spring 23 is arranged around the guide shaft 24, and one end of the first spring 23 is fixedly connected to the sliding block 25. The other end of the first spring 23... One end is fixedly connected to the inner wall of the frame 20. The drive assembly for driving the sliding block 25 to move is located inside the frame 20. The drive assembly includes a support shaft 21, a conical block 22 and a pressure block 51. The support shaft 21 is fixedly located inside the frame 20. The conical block 22 is located inside the frame 20 and one side of the conical block 22 is rotatably connected to the support shaft 21. One side of the conical block 22 extends into the guide groove 18. The pressure block 51 is fixedly connected to the conical block 22 and is located on one side of the sliding block 25. As the positioning plate 13 slides into the groove 11, the guide groove 18 slides on the guide plate 19. When the positioning plate 13 is almost completely inside the groove 11, the guide plate 19 applies pressure to one side of the conical block 22. The conical block 22 moves around the support shaft 21. The movement of the conical block 22 drives the pressure block 51 to move. The movement of the pressure block 51 drives the sliding block 25 to move. The guide shaft 24 guides the sliding block 25, allowing it to move smoothly. The movement of the sliding block 25 drives the clamping block 26 to move. The movement of the clamping block 26 drives the wear-resistant layer 50 to move. When the positioning plate 13 is completely inside the groove 11, the clamping block 26 and the wear-resistant layer 50 cooperate to fix and clamp the wire inside the cylinder 16, thereby ensuring the stability of the wire connection.

[0043] Furthermore, the monitoring mechanism includes a square frame 27, an observation window 29, an indicator block 31, and a display panel 32. The square frame 27 is fixedly installed at one end of the slide groove 11. The drain clamp 9 is provided with a through groove 28 corresponding to the square frame 27, and the through groove 28 is located on one side of the plate 47. The top of the square frame 27 is provided with an observation window 29. The inner wall of the square frame 27 is fixedly provided with a support block 30. The indicator block 31 is installed inside the square frame 27, and the indicator block 31 is located directly below the observation window 29. The support block 30 is located below the indicator block 31. The display panel 32 is fixedly installed on the top of the indicator block 31. The display panel 32 has two color areas. Initially, the lighter color area is located directly below the observation window 29. The inspector can easily see the position of the display panel 32 through the observation window 29. When the indicator block 31 moves, it will drive the display panel 32 to move. Then, the observation window 29 can be used to see whether the indicator block 31 has moved, and thus determine whether the monitoring wire is loose. With the cooperation of the support block 30 and the square frame 27, the indicator block 31 can be oriented and limited to guide it, so that the indicator block 31 can move smoothly.

[0044] Furthermore, the indicator block 31 is internally arranged with guide cylinders 33, and a limiting shaft 34 is inserted inside the guide cylinder 33. One end of the limiting shaft 34 is fixedly connected to the inner wall of the square frame 27. A second spring 35 is arranged around the limiting shaft 34. One end of the second spring 35 is fixedly connected to the inner wall of the square frame 27, and the other end of the second spring 35 is fixedly connected to the side of the indicator block 31. Initially, the guide cylinder 33 and the limiting shaft 34 work together to guide the indicator block 31, allowing the indicator block 31 to move smoothly. The second spring 35 applies pressure to one side of the indicator block 31, effectively preventing the indicator block 31 from swaying left and right.

[0045] Furthermore, a square groove 36 is fixedly provided at the bottom of the indicator block 31, a No. 3 spring 37 is fixedly provided inside the square groove 36, a baffle 38 passes through the square groove 36, and the end of the No. 3 spring 37 is fixedly connected to the baffle 38. The load-bearing plate 41 supports and limits the bottom of the baffle 38. After the load-bearing plate 41 is moved, it no longer limits the bottom of the baffle 38. The third spring 37 resets and pushes the baffle 38 to move. The square frame 27 is connected to the inside of the drain clamp 9 through the through slot 28. When the baffle 38 moves down, one end of the baffle 38 will enter the inside of the drain clamp 9, so that the baffle 38 is located on one side of the plate 47.

[0046] Furthermore, a slot 39 is fixedly provided on the inner wall of the square frame 27, a No. 4 spring 40 is fixedly provided inside the slot 39, a load-bearing plate 41 is passed through the slot 39, and the end of the No. 4 spring 40 is fixedly connected to the load-bearing plate 41. A baffle 38 is located above the load-bearing plate 41. A push plate 42 is fixedly provided on the load-bearing plate 41, and a locking block 43 is fixedly provided on the push plate 42. A limiting groove 44 corresponding to the push plate 42 is provided inside the square frame 27, and the push plate 42 passes through the limiting groove 44. A push block 45 is passed through the slide groove 11, and the side of the push block 45 is fixedly connected to the push plate 42. When the positioning plate 13 slides into the slide groove 11, it pushes the push block 45 to move. The movement of the push block 45, through the push plate 42, will drive the load-bearing plate 41 to move. As a result, the load-bearing plate 41 no longer provides limiting support for the bottom of the baffle 38, and the baffle 38 can move down. When the baffle 38 is above the load-bearing plate 41, the fourth spring 40 applies pressure to the side of the load-bearing plate 41. The push plate 42, the locking block 43 and the limiting groove 44 cooperate to limit the load-bearing plate 41.

[0047] Furthermore, a traction rope 49 is fixedly connected to the side of the baffle 38, and a pull block 48 is provided on the top of the square frame 27, with the end of the traction rope 49 fixedly connected to the pull block 48. When it is necessary to reset the baffle 38, pull the pull block 48. The traction rope 49 will drive the baffle 38 to move upward, thereby resetting the baffle 38. After the baffle 38 is reset, it will no longer limit the load-bearing plate 41 on one side. The fourth spring 40 will reset and push the load-bearing plate 41 to move and reset, so that the load-bearing plate 41 is located directly below the baffle 38 and supports the baffle 38.

[0048] Working principle: First, before fixing the conductor using the UHV double-plate thermal expansion sleeve tension clamp, the connecting sleeve 5 on the drain plate 6 is heated with a tool. Utilizing the principle of thermal expansion and contraction, the connecting sleeve 5 is fitted onto the aluminum tube body 1, fixing the drain plate 6 at the designated position on the aluminum tube body 1. After cooling, the connecting sleeve 5 on the drain plate 6 and the aluminum tube body 1 have an interference fit, enhancing the electrical contact surface of the tension clamp and effectively avoiding poor conductivity issues. Furthermore, the drain plate 6 has a double-plate structure, which, when fixing the conductor and bearing conductor tension, fixes the conductor to the connecting cylinder 3 on the steel anchor 2. Then, the steel anchor 2 is partially moved into the aluminum tube body 1, and the aluminum tube body 1 is fixedly connected to the steel anchor 2 using a tool (existing technology). The workpiece is used in conjunction with the fixing ring 4 on the steel anchor 2 to fix the position of the ultra-high voltage double-plate thermal expansion sleeve tension clamp, thereby achieving the purpose of fixing the conductor and bearing the conductor tension. The diversion plate 6 has a double-plate structure. Through the cooperation between the diversion plate 6 and the diversion clamp 9, the conductor can be subjected to uniform clamping force, avoiding problems such as excessive local stress and breakage of the diversion plate 6. The positioning bolts 7 are used to fix the diversion plate 6 and the diversion clamp 9, making the installation and disassembly process simple and quick, facilitating construction and maintenance. At the same time, the setting of the connecting sleeve 5 makes the diversion plate 6 more secure, increases the electrical contact surface, improves conductivity, improves the wear resistance and corrosion resistance of the tension clamp itself, and extends its service life. When the diversion clamp 9 connects the conductor to guide the current to other circuits, it ensures the power supply One end of the wire enters the ring 46. Using a tool, the wire is fixedly connected to the ring 46. Then, it passes through the limiting ring 10 and enters the drain clamp 9. The wire pushes the ring 46 and plate 47 to move. After the plate 47 moves to one side of the through groove 28, a hydraulic tool is used to tighten the limiting ring 10, fixing it to the wire. This secures the wire inside the drain clamp 9, allowing for draining. When multiple branches need power supply, the drain wires for each branch are threaded into the cylinder 16. With the help of a guide mechanism, the positioning plate 13 slides within the groove 11. After the positioning plate 13 is fully inside the groove 11, its position is fixed by the positioning mechanism. Simultaneously, the internal structure of the cylinder 16 is also monitored. The conductor position is determined by the coordination of the drain clamp 9, the slide groove 11, and the positioning plate 13, which allows power to be diverted to the conductor to supply power to the branch lines. This adapts to the power supply needs of multi-branch lines, improving the safety and efficiency of construction and operation. Compared to ordinary tension clamps, no additional adapters are required, meeting the power supply needs of complex scenarios such as distribution substations and multi-user branch lines. It can complete the main line fixing and multi-branch connection in one go, reducing construction procedures and accessory procurement costs, and shortening operation time. It is especially suitable for scenarios with limited working conditions such as high-altitude and field operations. Moreover, the structure is more compact, occupies less space, optimizes the line layout, reduces the risk of friction and collision between conductors, and facilitates subsequent line inspection and maintenance. After the positioning plate 13 is fully inserted into the slide groove 11,As the positioning plate 13 slides into the slide groove 11, the guide groove 18 slides on the guide plate 19. When the positioning plate 13 is almost completely inside the slide groove 11, the guide plate 19 applies pressure to one side of the conical block 22. The conical block 22 will move around the support shaft 21. The movement of the conical block 22 will drive the pressure block 51 to move. The movement of the pressure block 51 will drive the sliding block 25 to move. The guide shaft 24 will guide the sliding block 25 to move smoothly. The movement of the sliding block 25 will drive the clamping block 26. The movement of the clamping block 26 causes the wear-resistant layer 50 to move. When the positioning plate 13 is fully inserted into the slide groove 11, the clamping block 26 and the wear-resistant layer 50 cooperate to fix and clamp the wires inside the cylinder 16, thereby ensuring the stability of the wire connection. The display plate 32 has two color areas. Initially, the lighter color area is located directly below the observation window 29. When the positioning plate 13 slides into the slide groove 11, it pushes the push block 45 to move. The movement of the push block 45, through the push plate 42, drives the load-bearing... When plate 41 moves, the load-bearing plate 41 no longer provides limiting support to the bottom of baffle 38, allowing baffle 38 to move downwards. As baffle 38 moves downwards, one end of baffle 38 enters the drain clamp 9, placing baffle 38 on one side of plate 47. If the conductor accidentally loosens and slides outwards, ring 46 will move plate 47, which in turn will push baffle 38 to move. The square groove 36 will then move indicator block 31 and display plate 32. Inspectors can easily observe the position of display plate 32 through observation window 29, determining whether indicator block 31 has moved and whether the monitoring conductor is loose. This effectively prevents large-scale power outages caused by conductor detachment or short circuits. Especially for main power grids and important load power supply lines, this significantly improves power grid reliability, allowing for timely detection and handling, preventing small problems from escalating into serious faults such as broken conductor strands or damaged hardware. Waiting until a fault occurs before repairs not only require more manpower, material resources, and financial resources but also incurs high power outage losses.

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A double-plate thermal expansion sleeve tension clamp for ultra-high voltage transmission, characterized in that: The device includes an aluminum tube body (1), inside which is a steel anchor (2) for fixing the wire. A fixing ring (4) is provided at the end of the steel anchor (2). A connecting cylinder (3) is fixedly provided on the steel anchor (2). A connecting sleeve (5) is fitted on the aluminum tube body (1). A drain plate (6) is fixedly connected to the bottom of the connecting sleeve (5). A connecting assembly is provided inside the drain plate (6). A drain clamp (9) is fixedly connected to the drain plate (6) through the connecting assembly. A limit ring (10) is fixedly connected to the bottom of the drain clamp (9). A groove (11) is fixedly connected to the drain clamp (9). The groove (11) contains... A positioning plate (13) is provided in the part. A guide mechanism for guiding and limiting the positioning plate (13) is provided inside the slide groove (11). A positioning mechanism for positioning the positioning plate (13) is provided on the slide groove (11). A cylinder (16) for fixing the wire is provided at the center of the positioning plate (13). A frame (20) is symmetrically arranged inside the positioning plate (13), and the frame (20) is located on one side of the cylinder (16). A limiting mechanism for fixing the wire inside the cylinder (16) is provided inside the frame (20). A monitoring mechanism for monitoring the position of the wire inside the drain clamp (9) is provided on the slide groove (11).

2. The ultra-high voltage double-plate thermal expansion sleeve tension clamp according to claim 1, characterized in that: The connecting assembly includes a positioning bolt (7) and a connecting plate (8). The connecting plate (8) is located inside the diversion plate (6). The positioning bolt (7) is located on the diversion plate (6) and passes through the connecting plate (8). The diversion plate (6) has a double plate structure. A ring (46) is inserted inside the diversion clamp (9). A plate (47) is fixedly connected to the end of the ring (46).

3. The ultra-high voltage double-plate thermal expansion sleeve tension clamp according to claim 2, characterized in that: The positioning mechanism includes a concave frame (12), a limiting bolt (14), a positioning post (15), and a threaded hole (17). The concave frame (12) is fixedly mounted on the slide groove (11). The limiting bolt (14) passes through the concave frame (12). The threaded hole (17) corresponding to the limiting bolt (14) is located inside the positioning plate (13), and the threaded hole (17) is connected to the cylinder (16). The outer surface of the limiting bolt (14) is threadedly connected to the threaded hole (17). The positioning post (15) is fixedly mounted at the bottom end of the limiting bolt (14).

4. The ultra-high voltage double-plate thermal expansion sleeve tension clamp according to claim 3, characterized in that: The guiding mechanism includes a guide groove (18) and a guide plate (19). The guide groove (18) is symmetrically arranged on the positioning plate (13). The guide plate (19) is engaged inside the guide groove (18) and is fixedly connected to the inner wall of the slide groove (11).

5. The ultra-high voltage double-plate thermal expansion sleeve tension clamp according to claim 1, characterized in that: The limiting mechanism includes a guide shaft (24), a sliding block (25), a clamping block (26), a wear-resistant layer (50), and a drive assembly. The guide shaft (24) is symmetrically arranged inside the frame (20). The sliding block (25) is arranged inside the frame (20), and the guide shaft (24) passes through the sliding block (25). The clamping block (26) is fixedly arranged on the sliding block (25), and the wear-resistant layer (50) is arranged on the clamping block (26). A first spring (23) is arranged around the guide shaft (24), and one end of the first spring (23) is fixedly connected to the sliding block (25). The other end of the first spring (23) is fixedly connected to the sliding block (25). A drive assembly for driving the sliding block (25) to move is fixedly connected to the inner wall of the frame (20) at one end. The drive assembly includes a support shaft (21), a conical block (22) and a pressure block (51). The support shaft (21) is fixedly installed inside the frame (20). The conical block (22) is installed inside the frame (20), and one side of the conical block (22) is rotatably connected to the support shaft (21). One side of the conical block (22) extends into the guide groove (18). The pressure block (51) is fixedly connected to the conical block (22), and the pressure block (51) is located on one side of the sliding block (25).

6. The ultra-high voltage double-plate thermal expansion sleeve tension clamp according to claim 5, characterized in that: The monitoring mechanism includes a square frame (27), an observation window (29), an indicator block (31), and a display panel (32). The square frame (27) is fixedly installed at one end of the slide groove (11). The drain clamp (9) is provided with a through groove (28) corresponding to the square frame (27), and the through groove (28) is located on one side of the plate (47). The square frame (27) is provided with an observation window (29) at the top. The square frame (27) is fixedly installed with a support block (30) on the inner wall of the square frame (27). The indicator block (31) is installed inside the square frame (27) and is located directly below the observation window (29). The support block (30) is located below the indicator block (31). The display panel (32) is fixedly installed on the top of the indicator block (31).

7. A double-plate thermal expansion sleeve tension clamp for ultra-high voltage as described in claim 6, characterized in that: The indicator block (31) is internally arranged with guide cylinders (33), and a limiting shaft (34) is inserted inside the guide cylinder (33). One end of the limiting shaft (34) is fixedly connected to the inner wall of the square frame (27). A second spring (35) is arranged around the limiting shaft (34), and one end of the second spring (35) is fixedly connected to the inner wall of the square frame (27). The other end of the second spring (35) is fixedly connected to the side of the indicator block (31).

8. A double-plate thermal expansion sleeve tension clamp for ultra-high voltage as described in claim 7, characterized in that: The bottom of the indicator block (31) is fixedly provided with a square groove (36), and a No. 3 spring (37) is fixedly provided inside the square groove (36). A baffle (38) passes through the square groove (36), and the end of the No. 3 spring (37) is fixedly connected to the baffle (38).

9. A double-plate thermal expansion sleeve tension clamp for ultra-high voltage as described in claim 8, characterized in that: The inner wall of the square frame (27) is fixedly provided with a slot (39), and a No. 4 spring (40) is fixedly provided inside the slot (39). A load-bearing plate (41) is passed through the slot (39), and the end of the No. 4 spring (40) is fixedly connected to the load-bearing plate (41). The baffle (38) is located above the load-bearing plate (41). A push plate (42) is fixedly provided on the load-bearing plate (41), and a locking block (43) is fixedly provided on the push plate (42). The inside of the square frame (27) is provided with a limiting groove (44) corresponding to the push plate (42), and the push plate (42) passes through the limiting groove (44). A push block (45) is passed through the sliding groove (11), and the side of the push block (45) is fixedly connected to the push plate (42).

10. A double-plate thermal expansion sleeve tension clamp for ultra-high voltage as described in claim 9, characterized in that: The baffle (38) is fixedly connected to the side of the traction rope (49), and the square frame (27) is provided with a pull block (48) on the top, and the end of the traction rope (49) is fixedly connected to the pull block (48).

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