Tensioning device for high-altitude cables

Abstract

The present invention belongs to the technical field of transmission line erection, and particularly relates to a tensioning device for high-altitude cables, including a fixing part, a support frame, a tensioning frame and an adjusting part. The fixing part is arranged below the support frame, and the support frame is installed on a cross arm through the fixing part. The tensioning frame is arranged on the inner side of the support frame, and the adjusting part is installed on the support frame. The tensioning frame includes parallel connecting rods and rotating rods installed at both ends of the connecting rods, and a rotating shaft is fixedly installed in the middle of the rotating rod. The fixing part of the present invention is used to fix the device on the cross arm on the pole to ensure the safety of the device during operation. The support frame is used to support the tensioning frame to ensure the normal operation of the tensioning frame. The mutual cooperation of the adjusting part and the tensioning frame can realize the tightening of the loose cable line, reduce the slack sagging amplitude of the cable line, reduce the swaying amplitude of the cable line under the action of strong wind, and achieve the purpose of windproof reinforcement of the cable line.

Description

Technical Field

[0001] The invention belongs to the technical field of transmission line erection, and in particular relates to a tightening device for high-altitude cables. Background Art

[0002] The transmission line is realized by using a transformer to step up the voltage of the electric energy generated by the generator, and then connecting it to the transmission line through control equipment such as circuit breakers. In terms of structure, the transmission line is divided into overhead transmission lines and cable lines. Overhead transmission lines are composed of line towers, conductors, insulators, line hardware, guy wires, tower foundations, grounding devices, etc., and are erected above the ground.

[0003] As overhead transmission lines are exposed in mid-air, they are easily affected by environmental and human factors, and their operational stability needs to be strengthened. Among the many factors that affect overhead transmission lines, lightning strikes, icing, and external force damage are the main problems. In terms of external force damage, in addition to accidental touches and collisions caused by human factors, the line swaying caused by wind is the most destructive. Because the middle part of the line is in a loose hanging state, when the wind blows vertically, it will cause obvious swings, and in severe cases, it may cause line damage. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a tensioning device for high-altitude cables. The fixing part is used to fix the device on the cross arm on the pole to ensure the safety of the device during operation. The support frame is used to support the tensioning frame to ensure the normal operation of the tensioning frame. The mutual cooperation of the adjusting part and the tensioning frame can tighten the loose cable, reduce the sag amplitude of the cable, reduce the sway amplitude of the cable under the action of strong wind, and achieve the purpose of windproofing and reinforcing the cable.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A tensioning device for an aerial cable comprises a fixing, a support frame, a tensioning frame and an adjusting member, wherein the fixing member is arranged below the support frame, and the support frame is mounted on a cross arm through the fixing member, the tensioning frame is arranged on the inner side of the support frame, and the adjusting member is mounted on the support frame, and the tensioning frame comprises parallel connecting rods and rotating rods mounted at both ends of the connecting rods, a rotating shaft is fixedly mounted in the middle of the rotating rod, the rotating shaft is rotatably mounted on the support frame, and the rotating shaft is connected to the adjusting member.

[0007] Preferably, mounting plates are installed at both ends of the bottom of one of the rotating rods, wire blocking columns are installed on the mounting plates, and limiting pieces are installed on the connecting rods. The limiting pieces cooperate with the wire blocking columns. The setting of the wire blocking columns can block the cables and prevent them from falling off the wire tensioning frame during the tightening process, thereby affecting the tightening efficiency and quality of the cables.

[0008] Preferably, the limiting member includes a sliding rod, a spring, a locking block and a blocking block. The sliding rod is slidably installed on the connecting rod, and the locking block and the blocking block are symmetrically arranged at both ends of the sliding rod. The spring is sleeved on the sliding rod, and the spring is located between the locking block and the connecting rod. A locking groove is opened on the locking block, and the locking groove cooperates with the wire blocking column. The limiting member is used to block the end of the wire blocking column to prevent the cable from falling off from the end of the wire blocking column during the tightening process. The locking block is used to block the end of the wire blocking column. The setting of the locking groove fits the wire blocking column better, which improves the blocking quality of the wire blocking column. The setting of the spring can ensure that the locking block is always against the wire blocking column, which greatly ensures the blocking quality and efficiency of the cable.

[0009] Preferably, the support frame includes two parallel supporting rods, a fixed plate, a wire roller and a vertical plate, the fixed plate and the vertical plate are arranged on the left and the right, and the two ends of the fixed plate and the vertical plate are respectively connected to the two parallel supporting rods, the wire roller is arranged on the end of the supporting rod away from the vertical plate, and the two ends of the wire roller are respectively rotatably installed on the two parallel supporting rods, a vertical rod is installed at the bottom of the supporting rod, a connecting plate is installed on the vertical rod, the vertical rod and the connecting plate cooperate with the fixing part, the support frame is used to support the tensioning frame and the adjusting part to ensure the normal operation of the tensioning frame and the adjusting part, and at the same time ensure the purpose of the tensioning frame to tighten the cable normally, the wire roller is used to tighten the wire to ensure the normal tension of the cable.

[0010] Preferably, the adjusting member includes a moving rod, a rack installed at both ends of the moving rod, a first threaded rod, a handle and a gear. A mounting hole is opened on the support rod, the gear is arranged in the mounting hole, and the gear is fixedly mounted on the rotating shaft, the rack is arranged above the gear, and the rack is meshed with the gear, both ends of the first threaded rod are rotatably mounted on the fixed plate and the vertical plate, and the end of the first threaded rod passes through the vertical plate and extends to the outside of the vertical plate, the handle is arranged on the outside of the vertical plate, and the handle is fixedly connected to the first threaded rod, the moving rod is mounted on the first threaded rod and threadedly connected to the first threaded rod, the movement of the rack drives the gear to rotate, the rotation of the gear drives the rotating shaft to rotate, the rotation of the rotating shaft drives the rotating rod to rotate, and the rotation of the rotating rod drives the mounting plate and the wire blocking column on the rotating rod to rotate, thereby achieving the purpose of driving the cable to bend and move, and the bending and movement of the cable achieves the purpose of tightening the cable.

[0011] Preferably, a sliding groove is opened on the support rod, and the rack is slidably matched with the sliding groove. A pressure plate is installed on the top of the support rod, and the pressure plate is arranged on the top of the rack, and the pressure plate is slidably matched with the rack. The setting of the sliding groove and the pressure plate is used to guide the rack. At the same time, the setting of the pressure plate can prevent the rack from tilting during the sliding process, which greatly ensures the normal operation of the rack gear.

[0012] Preferably, the fixing part includes a fastening frame and a screw, the fastening frame is arranged on the vertical pole, and the fastening frame and the vertical pole are slidably matched, the screw is rotatably mounted on the connecting plate, and the fastening frame is mounted on the screw, and the fastening frame and the screw thread are matched, the fixing part is used to fix the device on the cross arm, and the device is fixed on the cross arm with the mutual cooperation of the screw, the fastening frame and the vertical pole, thereby ensuring the normal operation of the device.

[0013] Preferably, the fastening frame includes a movable plate, clamps installed at both ends of the movable plate, a vertical plate is fixedly installed at the bottom of the clamp, a bend is installed at the bottom of the vertical plate, and fastening bolts are installed on the bend. With the mutual cooperation of the clamp, the vertical pole and the vertical plate, the device is restricted to the cross arm, and the device is fixed to the cross arm under the action of the fastening bolts, thereby ensuring the fixing quality of the device.

[0014] Preferably, a pulling rod is also installed on the splint, a connecting block is fixedly installed on the top of the pulling rod, a fixing groove is opened on the connecting block, and a guide rail is installed on the top of the pressure plate. The fixing groove and the guide rail are slidably matched. The pulling rod and the connecting block cooperate with each other to limit the support rod and prevent one end of the support rod from tilting up during work, which greatly ensures the normal operation of the support rod. The connecting block and the guide rail cooperate with each other to serve the purpose of guiding and ensure the normal operation of the connecting block.

[0015] Preferably, a tension member is also installed on the connecting rod, and the tension member includes a mounting seat installed on the connecting rod, a sliding block, a second threaded rod, a first rotating arm, a second rotating arm, and a pushing block. Both ends of the second threaded rod are rotatably mounted on the mounting seat, and the threads on both sides of the center line of the second threaded rod have opposite rotation directions. The sliding blocks are symmetrically arranged on both sides of the center line of the second threaded rod. The upper ends of the first rotating arm and the second rotating arm are rotatably mounted on the pushing block, and the lower ends of the first rotating arm and the second rotating arm are respectively rotatably mounted on the sliding blocks arranged on both sides of the center line of the second threaded rod. The cable clamping grooves matching the cables are provided on both sides of the core wire. The cable tightening piece is used to stretch the cables, thereby achieving the purpose of tightening the cables, greatly ensuring the cable tightening efficiency and tightening quality. The second threaded rod rotates to drive the sliding block to move toward the middle, and the sliding block moves toward the middle to push the first rotating arm and the bottom of the second rotating arm to move toward the middle. The movement of the first rotating arm and the bottom of the second rotating arm toward the middle will cause the other ends of the first rotating arm and the second rotating arm to push the pushing block outward. The pushing block moves outward to achieve the purpose of pushing the cable outward, thereby ensuring the purpose of tightening the cable.

[0016] The beneficial effects of the present invention are:

[0017] 1) The fixings of the device are used to fix the device on the cross arm of the pole to ensure the safety of the device during operation. The support frame is used to support the tensioning frame to ensure the normal operation of the tensioning frame. The cooperation between the adjusting parts and the tensioning frame can tighten the loose cables, reduce the sag of the cables, and reduce the swaying amplitude of the cables under strong winds, thus achieving the purpose of windproofing and reinforcing the cables.

[0018] 2) The setting of the cable blocking column of this device can block the cable and prevent the cable from falling off the cable tensioning frame during the cable tensioning process, thereby affecting the cable tensioning efficiency and quality.

[0019] 3) The limiter of the device is used to block the end of the wire blocking column to prevent the cable from falling off the end of the wire blocking column during the tightening process. The positioning block is used to block the end of the wire blocking column. The setting of the positioning groove is more in line with the wire blocking column, which improves the blocking quality of the wire blocking column. The setting of the spring can ensure that the positioning block is always against the wire blocking column, which greatly ensures the blocking quality and blocking efficiency of the cable.

[0020] 4) The support frame of this device is used to support the tensioning frame and the adjusting parts to ensure the normal operation of the tensioning frame and the adjusting parts, and at the same time ensure that the tensioning frame can normally tighten the cable. The conductor roller is used to tighten the conductor to ensure the normal tension of the cable.

[0021] 5) The movement of the rack of this device drives the gear to rotate, the rotation of the gear drives the rotation of the shaft, the rotation of the shaft drives the rotation of the rotating rod, the rotation of the rotating rod drives the mounting plate and the wire blocking column on the rotating rod to rotate, thereby achieving the purpose of driving the cable to bend and move, and the bending and movement of the cable achieves the purpose of tightening the cable.

[0022] 6) The slide groove and pressure plate of this device are used to guide the rack. At the same time, the setting of the pressure plate can prevent the rack from tilting during the sliding process, which greatly ensures the normal operation of the rack and gear.

[0023] 7) The fixing parts of this device are used to fix the device on the cross arm. With the cooperation of the lead screw, the fastening frame and the vertical rod, the device is fixed on the cross arm, ensuring the normal operation of the device.

[0024] 8) This device is restricted on the cross arm by the cooperation of the clamping plate, the vertical pole and the vertical plate, and is fixed on the cross arm by the action of the fastening bolts, thereby ensuring the fixing quality of the device.

[0025] 9) The pulling rod and the connecting block of this device cooperate with each other to limit the support rod and prevent one end of the support rod from tilting during operation, which greatly ensures the normal operation of the support rod. The connecting block and the guide rail cooperate with each other to guide and ensure the normal operation of the connecting block.

[0026] 10) The tensioning member of the device is used to stretch the cable, so as to achieve the purpose of tightening the cable, which greatly ensures the tightening efficiency and tightening quality of the cable. The rotation of the second threaded rod drives the sliding block to move toward the middle, and the movement of the sliding block toward the middle pushes the first rotating arm and the bottom of the second rotating arm to move toward the middle. The movement of the first rotating arm and the bottom of the second rotating arm toward the middle will cause the other end of the first rotating arm and the second rotating arm to push the pushing block outward. The pushing block moves outward to achieve the purpose of pushing the cable outward, thereby ensuring the purpose of tightening the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 It is a structural schematic diagram of the present invention.

[0028] Attached Figure 2 It is a structural schematic diagram of the fixing member in the present invention.

[0029] Attached Figure 3 It is a structural schematic diagram of the fastening frame in the present invention.

[0030] Attached Figure 4 It is a structural schematic diagram of the support frame in the present invention.

[0031] Attached Figure 5 It is a structural schematic diagram of the take-up frame in the present invention.

[0032] Attached Figure 6 The present invention Figure 5 Enlarged view of point A in the middle.

[0033] Attached Figure 7 It is a schematic diagram of the structure of the tensioning member in the present invention.

[0034] Attached Figure 8 It is a structural schematic diagram of the adjusting member in the present invention.

[0035] In the figure:

[0036] 1. Fixing parts; 101. Lead screw; 102. Fastening frame; 103. Pull rod; 104. Fixing groove; 105. Connecting block; 106. Moving plate; 107. Clamping plate; 108. Vertical plate; 109. Bending; 1010. Fastening bolts;

[0037] 2. Support frame; 201. Support rod; 202. Wire roller; 203. Vertical rod; 204. Fixed plate; 205. Vertical plate; 206. Slide groove; 207. Connecting plate; 208. Mounting hole;

[0038] 3. Limiting member; 301. Blocking block; 302. Spring; 303. Positioning groove; 304. Positioning block; 305. Sliding rod;

[0039] 4. Take-up frame; 401. Rotating rod; 402. Mounting plate; 403. Connecting rod; 404. Wire blocking column; 405. Rotating shaft;

[0040] 5. Wire tightening member; 501. mounting seat; 502. first rotating arm; 503. second rotating arm; 504. pushing block; 505. wire clamping groove; 506. sliding block; 507. second threaded rod;

[0041] 6. Adjusting member; 601. First threaded rod; 602. Moving rod; 603. Rack; 604. Pressing plate; 605. Guide rail; 606. Gear. DETAILED DESCRIPTION

[0042] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] like Figure 1 As shown, the tensioning device for the high-altitude cable includes a fixing member 1, a support frame 2, a tensioning frame 4 and an adjusting member 6. The fixing member 1 is arranged below the support frame 2, and the support frame 2 is installed on the cross arm through the fixing member 1. The tensioning frame 4 is arranged on the inner side of the support frame 2, and the adjusting member 6 is installed on the support frame 2. Figure 5 As shown, the tensioning frame 4 includes parallel connecting rods 403 and rotating rods 401 installed at both ends of the connecting rods 403, and a rotating shaft 405 is fixedly installed in the middle of the rotating rod 401. The rotating shaft 405 is rotatably installed on the support frame 2 and is connected to the adjusting member 6.

[0045] In this embodiment, in order to ensure that the cable can be restricted during the rotation process and to ensure the cable is tightened, Figure 5 As shown, mounting plates 402 are mounted at both ends of the bottom of one of the rotating rods 401 , and wire blocking posts 404 are mounted on the mounting plates 402 .

[0046] like Figure 5 As shown, in order to prevent the cable from falling off the cable blocking column 404 and affecting the tensioning quality of the cable, a limiting member 3 is further installed on the connecting rod 403, and the limiting member 3 cooperates with the cable blocking column 404.

[0047] The provision of the cable blocking column 404 can serve the purpose of blocking the cable, preventing the cable from falling off the cable tensioning frame 4 during the cable tensioning process, thereby affecting the cable tensioning efficiency and quality.

[0048] In this embodiment, if Figure 6 As shown, the limiting member 3 includes a sliding rod 305, a spring 302, a locking block 304, and a blocking block 301. The sliding rod 305 is slidably installed on the connecting rod 403. The locking block 304 and the blocking block 301 are symmetrically arranged at both ends of the sliding rod 305. The spring 302 is sleeved on the sliding rod 305, and the spring 302 is located between the locking block 304 and the connecting rod 403. A locking groove 303 is opened on the locking block 304, and the locking groove 303 cooperates with the wire blocking column 404.

[0049] The limiting member 3 is used to seal the end of the wire blocking column 404 to prevent the cable from falling off the end of the wire blocking column 404 during the tightening process. The locking block 304 is used to seal the end of the wire blocking column 404. The setting of the locking groove 303 better fits the wire blocking column 404, thereby improving the sealing quality of the wire blocking column 404. The setting of the spring 302 can ensure that the locking block 304 is always against the wire blocking column 404, thereby greatly ensuring the blocking quality and efficiency of the cable.

[0050] In this embodiment, if Figure 4 As shown, the support frame 2 includes two parallel support rods 201, a fixed plate 204, a wire roller 202 and a vertical plate 205. The fixed plate 204 and the vertical plate 205 are arranged on the left and the right, and the two ends of the fixed plate 204 and the vertical plate 205 are respectively connected to the two parallel support rods 201. The wire roller 202 is arranged on the end of the support rod 201 away from the vertical plate 205, and the two ends of the wire roller 202 are respectively rotatably installed on the two parallel support rods 201. A vertical rod 203 is installed at the bottom of the support rod 201, and a connecting plate 207 is installed on the vertical rod 203. The vertical rod 203 and the connecting plate 207 cooperate with the fixing member 1.

[0051] The support frame 2 is used to support the tension frame 4 and the adjusting member 6 to ensure the normal operation of the tension frame 4 and the adjusting member 6, while ensuring that the tension frame 4 can normally tighten the cable. The conductor roller 202 is used to tighten the conductor to ensure the normal tension of the cable.

[0052] In this embodiment, in order to facilitate the rotation of the tensioning frame 4, so as to achieve the purpose of rotating and tightening the cable, as shown in FIG. Figure 8 As shown, the adjusting member 6 includes a moving rod 602, a rack 603 installed at both ends of the moving rod 602, a first threaded rod 601 and a gear 606. A mounting hole 208 is opened on the support rod 201, the gear 606 is arranged in the mounting hole 208, and the gear 606 is fixedly installed on the rotating shaft 405. The rack 603 is arranged above the gear 606, and the rack 603 is meshed with the gear 606. The two ends of the first threaded rod 601 are rotatably installed on the fixed plate 204 and the vertical plate 205, and the end of the first threaded rod 601 passes through the vertical plate 205 and extends to the outside of the vertical plate 205. The moving rod 602 is installed on the first threaded rod 601 and is threadedly connected to the first threaded rod 601.

[0053] In order to facilitate the rotation of the first threaded rod 601 , a hexagonal nut may be provided at the end of the first threaded rod 601 to facilitate the staff to rotate the first threaded rod 601 , thereby achieving the purpose of rotating the first threaded rod 601 .

[0054] The movement of the rack 603 drives the gear 606 to rotate, the rotation of the gear 606 drives the rotating shaft 405 to rotate, the rotation of the rotating shaft 405 drives the rotating rod 401 to rotate, the rotation of the rotating rod 401 drives the mounting plate 402 and the wire blocking column 404 on the rotating rod 401 to rotate, thereby achieving the purpose of driving the cable bend 109 to move, and the movement of the cable bend 109 achieves the purpose of tightening the cable.

[0055] In this embodiment, if Figure 4 As shown, a slide groove 206 is provided on the support rod 201, and the rack 603 is slidably matched with the slide groove 206, as shown in FIG. Figure 8 As shown, a pressing plate 604 is installed on the top of the support rod 201 , and the pressing plate 604 is arranged on the top of the rack 603 , and the pressing plate 604 and the rack 603 are slidably matched.

[0056] The slide groove 206 and the pressure plate 604 are used to guide the rack 603. At the same time, the pressure plate 604 can prevent the rack 603 from tilting during the sliding process, which greatly ensures the normal operation of the rack 603 and the gear 606.

[0057] In this embodiment, if Figure 2 As shown, the fixing member 1 includes a fastening frame 102 and a lead screw 101. The fastening frame 102 is arranged on the vertical rod 203, and the fastening frame 102 and the vertical rod 203 are slidably matched. The lead screw 101 is rotatably installed on the connecting plate 207, and the fastening frame 102 is installed on the lead screw 101, and the fastening frame 102 and the lead screw 101 are threadedly matched.

[0058] The fixing member 1 is used to fix the device on the cross arm. With the cooperation of the lead screw 101, the fastening frame 102 and the vertical rod 203, the device is fixed on the cross arm, thereby ensuring the normal operation of the device.

[0059] In this embodiment, if Figure 3 As shown, the fastening frame 102 includes a moving plate 106 and clamping plates 107 installed at both ends of the moving plate 106 . A vertical plate 108 is fixedly installed at the bottom of the clamping plate 107 . A bend 109 is installed at the bottom of the vertical plate 108 . A fastening bolt 1010 is installed on the bend 109 .

[0060] The device is restricted on the cross arm by the cooperation of the clamping plate 107, the vertical pole 203 and the vertical plate 108, and the device is fixed on the cross arm by the action of the fastening bolts 1010, thereby ensuring the fixing quality of the device.

[0061] In this embodiment, if Figure 2As shown, a pull rod 103 is also installed on the clamping plate 107, a connecting block 105 is fixedly installed on the top of the pull rod 103, a fixing groove 104 is opened on the connecting block 105, and a guide rail 605 is installed on the top of the pressure plate 604, and the fixing groove 104 and the guide rail 605 are slidably matched.

[0062] The pulling rod 103 and the connecting block 105 cooperate with each other to limit the support rod 201, preventing one end of the support rod 201 from tilting during operation, thereby greatly ensuring the normal operation of the support rod 201. The connecting block 105 and the guide rail 605 cooperate with each other to serve the purpose of guidance, thereby ensuring the normal operation of the connecting block 105.

[0063] In this embodiment, in order to further tighten the cable, Figure 7 As shown, a tensioning member 5 is also installed on the connecting rod 403, and the tensioning member 5 includes a mounting seat 501 installed on the connecting rod 403, a sliding block 506, a second threaded rod 507, a first rotating arm 502, a second rotating arm 503, and a pushing block 504. The two ends of the second threaded rod 507 are rotatably mounted on the mounting seat 501, and the threads on both sides of the center line of the second threaded rod 507 have opposite rotation directions. The sliding blocks 506 are symmetrically arranged on both sides of the center line of the second threaded rod 507. The upper ends of the first rotating arm 502 and the second rotating arm 503 are rotatably mounted on the pushing block 504, and the lower ends of the first rotating arm 502 and the second rotating arm 503 are respectively rotatably mounted on the sliding blocks 506 arranged on both sides of the center line of the second threaded rod 507.

[0064] In order to ensure the safety of the cable support and prevent the cable from falling off the push block 504 and affecting the tensioning quality of the cable, Figure 7 As shown, cable slots 505 cooperating with the cables can also be opened on both sides of the top center line of the push block 504.

[0065] The tensioning member 5 is used to stretch the cable, so as to achieve the purpose of tightening the cable, which greatly ensures the tightening efficiency and quality of the cable. The second threaded rod 507 rotates to drive the sliding block 506 to move toward the middle. The sliding block 506 moves toward the middle and pushes the bottom of the first rotating arm 502 and the second rotating arm 503 to move toward the middle. The movement of the bottom of the first rotating arm 502 and the second rotating arm 503 toward the middle will cause the other end of the first rotating arm 502 and the second rotating arm 503 to push the pushing block 504 outward. The pushing block 504 moves outward to achieve the purpose of pushing the cable outward, thereby ensuring the purpose of tightening the cable.

[0066] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the scope defined by the structure of the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A tensioning device for high-altitude cables, comprising a fixing part, a support frame, a tensioning frame and an adjusting part, characterized in that: The fixing member is arranged below the support frame, and the support frame is installed on the cross arm through the fixing member, the tensioning frame is arranged on the inner side of the support frame, and the adjusting member is installed on the support frame, and the tensioning frame includes connecting rods arranged in parallel and rotating rods installed at both ends of the connecting rods, and a rotating shaft is fixedly installed in the middle of the rotating rod, and the rotating shaft is rotatably installed on the support frame, and the rotating shaft is connected to the adjusting member; The support frame includes two parallel supporting rods, a fixed plate, a wire roller and a vertical plate. The fixed plate and the vertical plate are arranged on the left and the right, and the two ends of the fixed plate and the vertical plate are respectively connected to the two parallel supporting rods. The wire roller is arranged on the end of the supporting rod away from the vertical plate, and the two ends of the wire roller are respectively rotatably installed on the two parallel supporting rods. The vertical rod is installed at the bottom of the supporting rod, and the connecting plate is installed on the vertical rod. The vertical rod and the connecting plate cooperate with the fixing piece. The adjusting member includes a moving rod, a rack installed at both ends of the moving rod, a first threaded rod and a gear. A mounting hole is opened on the support rod, the gear is arranged in the mounting hole, and the gear is fixedly installed on the rotating shaft. The rack is arranged above the gear, and the rack is meshed with the gear. Both ends of the first threaded rod are rotatably installed on the fixed plate and the vertical plate, and the end of the first threaded rod passes through the vertical plate and extends to the outside of the vertical plate. The moving rod is installed on the first threaded rod and is threadedly connected to the first threaded rod. A slide groove is provided on the support rod, and the rack is slidably matched with the slide groove. A pressure plate is installed on the top of the support rod, and the pressure plate is arranged on the top of the rack, and the pressure plate is slidably matched with the rack. The fixing member comprises a fastening frame and a lead screw, wherein the fastening frame is arranged on the vertical rod and the fastening frame and the vertical rod are slidably matched, the lead screw is rotatably mounted on the connecting plate, and the fastening frame is mounted on the lead screw and the fastening frame and the lead screw are threadedly matched; The fastening frame includes a moving plate, clamping plates installed at both ends of the moving plate, a vertical plate fixedly installed at the bottom of the clamping plate, a bend installed at the bottom of the vertical plate, and a fastening bolt installed on the bend; A pulling rod is also installed on the clamping plate, a connecting block is fixedly installed on the top of the pulling rod, a fixing groove is opened on the connecting block, a guide rail is installed on the top of the pressing plate, and the fixing groove and the guide rail are slidably matched.

2. The tensioning device for aerial cables according to claim 1, characterized in that: Mounting plates are installed at both ends of the bottom of one of the rotating rods, a wire blocking column is installed on the mounting plate, and a limiting piece is installed on the connecting rod, and the limiting piece cooperates with the wire blocking column.

3. The tensioning device for aerial cables according to claim 2, characterized in that: The limiting component includes a sliding rod, a spring, a locking block, and a blocking block. The sliding rod is slidably installed on the connecting rod. The locking block and the blocking block are symmetrically arranged at both ends of the sliding rod. The spring is sleeved on the sliding rod, and the spring is located between the locking block and the connecting rod. A locking groove is opened on the locking block, and the locking groove cooperates with the wire blocking column.

4. The tensioning device for aerial cables according to claim 1, characterized in that: A tensioning piece is also installed on the connecting rod, and the tensioning piece includes a mounting seat installed on the connecting rod, a sliding block, a second threaded rod, a first rotating arm, a second rotating arm, and a pushing block. Both ends of the second threaded rod are rotatably installed on the mounting seat, and the threads on both sides of the center line of the second threaded rod have opposite rotation directions. The sliding blocks are symmetrically arranged on both sides of the center line of the second threaded rod. The upper ends of the first rotating arm and the second rotating arm are rotatably installed on the pushing block, and the lower ends of the first rotating arm and the second rotating arm are respectively rotatably installed on the sliding blocks arranged on both sides of the center line of the second threaded rod. Wire clamping grooves matching the cable are opened on both sides of the top center line of the pushing block.

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