Power transmission line spacer

Abstract

The invention relates to the technical field of power equipment, and discloses a power transmission line spacer which comprises a phase-to-phase spacer body and fixing assemblies arranged at the two ends of the phase-to-phase spacer body, each fixing assembly comprises a guide rail and two oppositely-arranged clamping plates, and connecting bases are fixedly arranged at the two ends of the phase-to-phase spacer body; the guide rail is fixedly connected with the connecting base, the two clamping plates are slidably connected with the guide rail, and the side, away from the connecting base, of the guide rail is provided with a transmission assembly and a driving assembly. Through the arrangement of the driving assembly and the transmission assembly, after a connecting rope is cut off, a first spring drives a sliding plate to move, through transmission of a straight gear, a first bevel gear, a second bevel gear and a double-thread screw, two clamping plates move relatively to clamp a cable, the clamping plates are prevented from loosening through the self-locking characteristic of the double-thread screw, power assemblies such as a storage battery and a motor are not needed, and the device is convenient to use. The manufacturing cost of the spacer is remarkably reduced, and potential safety hazards such as explosion caused by thermal runaway of the storage battery are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, in particular to a transmission line spacer. Background Art

[0002] Transmission line spacers are important hardware installed on the split conductors of transmission lines. Their main function is to maintain a fixed distance between the sub-conductors in the split conductors, preventing the sub-conductors from whipping or colliding with each other due to external forces such as wind and icing, which may damage the insulation layer or cause mechanical damage. At the same time, they can also suppress the sub-span oscillation of the conductors and improve the stability and safety of transmission line operation.

[0003] Chinese patent CN117394208A discloses a method for installing interphase spacers on a drone under power, comprising a hoisting and telescopic mechanism and an interphase spacer body, wherein the interphase spacer body is detachably connected to the hoisting and telescopic mechanism, and the hoisting and telescopic mechanism is installed at the bottom of the drone; the fixed arm, the first sliding arm, and the second sliding arm of the hoisting and telescopic mechanism are convenient for storage and deployment; the hoisting and telescopic mechanism in the stored state is convenient for carrying and use; the hoisting and telescopic mechanism in the deployed state is convenient for avoiding shaking of the interphase spacer body caused by high-altitude airflow during installation of the interphase spacer body, thereby ensuring precise positioning and installation of the interphase spacer body and the wires; and at the same time, maintaining a distance between the drone and the wires during installation, thereby ensuring safe construction and avoiding interference of the wires with the drone's signals.

[0004] With the development of drone technology, the installation mode of transmission line spacers has gradually transformed from traditional manual operation to drone-assisted operation. This innovation has significantly reduced the installation cost and greatly improved the safety of high-altitude operations. As shown in the above-mentioned patent, in order to achieve a reliable connection between the spacer hook and the transmission line, a wire crimper is usually required as a fixing device. The motion control of the wire crimper relies on a built-in drive mechanism, and the operation of the drive mechanism requires supporting power components such as batteries and motors. This design scheme not only leads to a significant increase in the manufacturing cost of the spacer, but also poses a major safety hazard. Given that the high-voltage transmission lines are installed at a high position, the batteries carried by the spacers are very prone to thermal runaway in a high-temperature environment, causing serious accidents such as explosions, posing a potential threat to the stable operation of the power system and the safety of the surrounding environment.

[0005] Therefore, it is necessary to provide a transmission line spacer to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a transmission line spacer that does not require power components such as batteries and motors, significantly reduces the manufacturing cost of the spacer, and avoids safety hazards such as explosion caused by thermal runaway of batteries.

[0007] The above-mentioned technical objectives of the present invention are achieved through the following technical solutions: A transmission line spacer, comprising an interphase spacer body and a fixing assembly arranged at both ends of the interphase spacer body, the fixing assembly comprising a guide rail and two oppositely arranged clamping plates, both ends of the interphase spacer body are fixedly provided with a connecting seat, the guide rail is fixedly connected to the connecting seat, the two clamping plates are slidably connected to the guide rail, a transmission assembly is provided on the side of the guide rail away from the connecting seat, a drive assembly is provided on the side of the guide rail away from the clamping plate, the drive assembly is connected to the two clamping plates through the transmission assembly to drive the two clamping plates to move relative to each other, the drive assembly comprises a drive box, a slide slidingly arranged in the drive box, a first spring and a connecting rope arranged in the drive box, the slide is elastically connected to the side wall of the drive box close to the connecting seat through the first spring, the first spring is in a compressed state, the two ends of the connecting rope are respectively connected to the slides in the two drive assemblies, and the clamping plates are driven to move through the transmission assembly when the slide moves.

[0008] The present invention is further configured as follows: two slide seats are slidably installed inside the guide rail, two splints are fixedly connected to the two slide seats respectively, and a double-headed screw is rotatably installed inside the guide rail, the double-headed screw passes through the two slide seats, and the double-headed screw is threadedly connected to the two slide seats.

[0009] The present invention is further configured as follows: the transmission assembly includes a transmission box, a rotating shaft, a first bevel gear and a second bevel gear, the transmission box is fixedly mounted on a side of the guide rail away from the connecting seat, one end of the rotating shaft is located in the transmission box, and the other end of the rotating shaft is located in the driving box, and the rotating shaft rotates in cooperation with the transmission box and the driving box, the first bevel gear and the second bevel gear are both arranged in the transmission box, the top end of the double-headed screw extends into the transmission box, and the first bevel gear is fixedly sleeved on the top end of the double-headed screw, one end of the rotating shaft extending into the transmission box is fixedly connected to the second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0010] The present invention is further configured as follows: the drive assembly also includes a spur gear and a rack, the rack is fixedly mounted on the side of the slide away from the first spring, the spur gear is fixedly sleeved on the end of the rotating shaft extending into the drive box, and the rack is meshed with the spur gear.

[0011] The present invention is further configured as follows: a sliding column is fixedly installed on the side of the skateboard close to the connecting seat, the sliding column passes through the side wall of the drive box close to the connecting seat, a connecting plate is fixedly installed on the end of the sliding column away from the skateboard, a connecting ring is fixedly installed on the side of the connecting plate away from the sliding column, and the end of the connecting rope is fixedly connected to the connecting ring.

[0012] The present invention is further configured as follows: a first magnetic block is embedded and installed on the slide, a limit plate is fixedly installed in the middle of the inner cavity of the drive box, a through hole is opened on the limit plate for the rack to pass through, a second magnetic block is embedded and installed on the limit plate, and the first magnetic block and the second magnetic block are magnetically attracted to each other.

[0013] The present invention is further configured as follows: two insulators are provided on the interphase spacer rod body, a telescopic connection assembly is provided between the two insulators, and the two insulators are elastically connected via the telescopic connection assembly.

[0014] The present invention is further configured as follows: the telescopic connection assembly includes a connecting tube, a connecting column and a second spring, the connecting tube and the connecting column are fixedly connected to the two insulators respectively, one end of the connecting column extends into the interior of the connecting tube, a second spring is provided in the connecting tube, and the connecting column is elastically connected to the connecting tube through the second spring.

[0015] The present invention is further configured as follows: a rope winding rod is fixedly installed on one side of the connecting tube, a notch is opened at the end of the rope winding rod away from the connecting tube, the connecting rope passes through the notch, a locking bolt is threadedly installed at the end of the rope winding rod away from the connecting tube, one end of the locking bolt extends into the notch and presses on the connecting rope, and a knob is fixedly installed on the other end of the locking bolt.

[0016] The present invention is further configured as follows: the connection disk is made of rubber material, and when the clamping plate clamps the cable, the connection disk is attached to the outer wall of the transmission box.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. The present invention adopts the arrangement of a drive assembly and a transmission assembly. When the connecting rope is cut, the first spring drives the slide plate to move, which is then driven by the spur gear, the first bevel gear, the second bevel gear and the double-headed screw, so that the two clamping plates move relative to each other to clamp the cable. The self-locking property of the double-headed screw is used to prevent the clamping plates from loosening. No power components such as batteries and motors are required, which significantly reduces the manufacturing cost of the spacer bar and avoids safety hazards such as explosion caused by thermal runaway of the battery. In addition, the first magnetic block on the slide plate is magnetically attracted to the second magnetic block on the limit plate, which compensates for the problem of insufficient spring elasticity, further enhances the clamping force, and ensures that the connection between the spacer bar and the cable is stable and reliable.

[0019] 2. The present invention arranges the connecting tube, the connecting column and the second spring in the telescopic connecting assembly so that the main body length of the phase spacer can be elastically adjusted as the distance between the upper and lower cables changes, thereby buffering the force during the relative movement of the cables and avoiding damage to the spacer due to rigid connection; the rope winding rod and the locking bolt cooperate to adjust the number of winding turns of the connecting rope according to the distance measurement results, accurately control the main body length of the spacer, adapt to the installation requirements of cables with different spacings, improve operational adaptability and installation reliability, and, when the connecting rope is cut off, the lock on the main body length of the phase spacer can be automatically released without the need for other operations, thereby improving the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0022] Figure 3 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 4 It is a schematic cross-sectional view of the fixing assembly, transmission assembly and driving assembly of the present invention;

[0024] Figure 5 This is one of the structural diagrams of the transmission assembly and the drive assembly of the present invention;

[0025] Figure 6 This is the second structural diagram of the transmission assembly and the drive assembly of the present invention;

[0026] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at point B;

[0027] Figure 8 is a schematic cross-sectional structural diagram of the telescopic connection assembly of the present invention;

[0028] Figure 9 It is a schematic top view of the rope winding rod and the locking bolt of the present invention.

[0029] In the figure: 1. Interphase spacer rod body; 2. Insulator; 3. Telescopic connection assembly; 301. Connecting cylinder; 302. Connecting column; 303. Second spring; 4. Connecting seat; 5. Fixing assembly; 501. Guide rail; 5011. Anti-slip protrusion; 502. Sliding seat; 503. Clamping plate; 504. Double-headed screw; 6. Transmission assembly; 601. Transmission box; 602. First bevel gear; 603. Rotating shaft; 604. Second bevel gear; 7. Driving assembly; 701. Driving box; 702. Spur gear; 703. Rack; 704. Slide plate; 705. First spring; 706. Sliding column; 707. Connecting disk; 708. Connecting ring; 709. Connecting rope; 710. Limiting plate; 711. First magnetic block; 712. Second magnetic block; 8. Rope winding rod; 801. Notch; 9. Locking bolt; 10. Knob DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] See also Figures 1 to 7In an embodiment of the present invention, a transmission line spacer includes an interphase spacer body 1 and a fixing assembly 5 provided at both ends of the interphase spacer body 1, wherein the fixing assembly 5 includes a guide rail 501 and two oppositely arranged clamping plates 503, the clamping plates 503 are of an arc-shaped structure, and both ends of the interphase spacer body 1 are fixedly provided with a connecting seat 4, the guide rail 501 is fixedly connected to the connecting seat 4, the two clamping plates 503 are slidably connected to the guide rail 501, a transmission assembly 6 is provided on the side of the guide rail 501 away from the connecting seat 4, and a drive assembly 7 is provided on the side of the guide rail 501 away from the clamping plates 503. The driving assembly 7 is connected to the two splints 503 through the transmission assembly 6 to drive the two splints 503 to move relative to each other. The driving assembly 7 includes a driving box 701, a slide 704 slidably arranged in the driving box 701, a first spring 705 and a connecting rope 709 arranged in the driving box 701, and the slide 704 is elastically connected to the side wall of the driving box 701 close to the connecting seat 4 through the first spring 705. The first spring 705 is in a compressed state. The first spring 705 in the compressed state stores elastic potential energy to provide a power source for the subsequent movement of the slide 704. The two ends of the connecting rope 709 are respectively connected to the The slides 704 in the two drive assemblies 7 are connected, and when the slides 704 move, the clamping plate 503 is driven to move by the transmission assembly 6. In specific use, the interphase spacer bar body 1 is clamped by arranging an electric clamp on the drone. When clamping, the interphase spacer bar body 1 is in a vertical state. The interphase spacer bar body 1 is moved to the installation position by the flight of the drone. The interphase spacer bar body 1 is moved so that the upper and lower cables are respectively located on the inner sides of the upper and lower clamping plates 503, and then the connecting rope 709 is cut off so that the connecting rope 709 releases the limit of the slide 704, thereby making the two slides 704 Under the elastic action of the first spring 705, it moves in the direction away from the connecting seat 4. When the slide plate 704 moves, it drives the clamping plate 503 to move through the transmission component 6, thereby clamping the cable. The clamping process does not require human intervention and can be completed through remote operation of the drone, which greatly improves the safety and convenience of high-altitude operations. After the two cables are clamped, the electric clamp on the drone is controlled to release the fixation of the phase spacer rod body 1 to complete the installation. The connecting rope 709 can be cut off by setting an electric shear on the drone, or by using a laser obstacle remover on the ground to burn the connecting rope 709.

[0032] In this embodiment, preferably, both opposite side walls of the guide rail 501 located above are provided with anti-slip protrusions 5011 , and the clamps on the drone are clamped on both sides of the guide rail 501 , and the anti-slip protrusions 5011 provide a firm clamping force.

[0033] In this embodiment, preferably, two slides 502 are slidably installed inside the guide rail 501, and two splints 503 are fixedly connected to the two slides 502 respectively. A double-headed screw 504 is rotatably installed inside the guide rail 501, and the double-headed screw 504 passes through the two slides 502, and the double-headed screw 504 is threadedly connected to the two slides 502; two sections of thread grooves in opposite directions are provided on the double-headed screw 504, so that when the double-headed screw 504 rotates, it can drive the two slides 502 to move synchronously in opposite directions, and then drive the two splints 503 to move synchronously in opposite directions. The self-locking characteristics of the double-headed screw 504 are utilized to enable the splint 503 to effectively clamp the cable and prevent the splint 503 from loosening. Anti-slip structures such as anti-slip grooves can be provided on the clamping surface of the splint 503 to improve the firmness of the fixation.

[0034] In this embodiment, preferably, the transmission assembly 6 includes a transmission box 601, a rotating shaft 603, a first bevel gear 602 and a second bevel gear 604. The transmission box 601 is fixedly installed on the side of the guide rail 501 away from the connecting seat 4. One end of the rotating shaft 603 is located in the transmission box 601, and the other end of the rotating shaft 603 is located in the driving box 701, and the rotating shaft 603 rotates with the transmission box 601 and the driving box 701. The first bevel gear 602 and the second bevel gear 604 are both arranged in the transmission box 601, and the top of the double-headed screw 504 extends into the transmission box 601, and the first bevel gear 602 is fixedly sleeved on the top of the double-headed screw 504, and one end of the rotating shaft 603 extends into the transmission box 601 and is fixedly connected to the second bevel gear 604, and the first bevel gear 602 is meshed with the second bevel gear 604; the driving assembly 7 also includes a spur gear 702 and a rack 703, and the rack 703 is fixedly installed on the slide plate 704 away from the first spring 70 5, the spur gear 702 is fixedly sleeved on one end of the rotating shaft 603 extending into the drive box 701, and the rack 703 is meshed with the spur gear 702; when the connecting rope 709 breaks, under the elastic action of the first spring 705, the slide plate 704 moves in the direction away from the connecting seat 4, thereby driving the rack 703 to move, and when the rack 703 moves, it drives the spur gear 702 to rotate, and when the spur gear 702 rotates, it drives the first bevel gear 602 to rotate through the second bevel gear 604, and when the first bevel gear 602 rotates, it drives the double-headed screw 504 to rotate, and when the double-headed screw 504 rotates, it drives the two slides 502 to move, so that the two slides 502 drive the two clamping plates 503 to approach each other, so that the clamping plates 503 are clamped on the cable, and then when the connecting rope 709 breaks, the two clamping plates 503 are driven by the driving assembly 7 and the transmission assembly 6 to move relative to each other so that the two clamping plates 503 are clamped on the cable, thereby fixing the interphase spacer rod body 1 between the two cables.

[0035] In this embodiment, preferably, a sliding column 706 is fixedly installed on the side of the slide 704 close to the connecting seat 4, and the sliding column 706 passes through the side wall of the drive box 701 close to the connecting seat 4, and a connecting disk 707 is fixedly installed on the end of the sliding column 706 away from the slide 704, and a connecting ring 708 is fixedly installed on the side of the connecting disk 707 away from the sliding column 706, and the end of the connecting rope 709 is fixedly connected to the connecting ring 708, thereby realizing the connection between the connecting rope 709 and the slide 704, and the connecting disk 707 is made of rubber material, so that when the splint 503 clamps the cable, the connecting disk 707 fits on the outer wall of the transmission box 601, thereby sealing the position where the sliding column 706 passes through the transmission box 601, preventing rainwater from penetrating into the transmission box 601.

[0036] In this embodiment, preferably, a first magnetic block 711 is embedded in the slide 704, a limiting plate 710 is fixedly installed in the middle of the inner cavity of the drive box 701, a through hole is opened on the limiting plate 710 for the rack 703 to pass through, and a second magnetic block 712 is embedded in the limiting plate 710. The first magnetic block 711 and the second magnetic block 712 are magnetically attracted to each other; when the slide 704 moves toward the limiting plate 710, as the distance between the slide 704 and the limiting plate 710 decreases, the magnetic force between the first magnetic block 711 and the second magnetic block 712 increases. The suction force increases, and when the first magnetic block 711 contacts the second magnetic block 712, the splint 503 just completes the clamping of the cable. The strong magnetic suction force when the first magnetic block 711 and the second magnetic block 712 are close to each other can make up for the problem of insufficient elasticity of the first spring 705, significantly improving the clamping force of the splint 503 on the cable, ensuring the firmness of the connection with the cable, and effectively preventing the splint 503 from loosening. Even if the elasticity of the first spring 705 weakens after long-term use, the magnetic suction force can ensure the clamping force of the splint 503 on the cable.

[0037] The present invention is provided with a drive component 7 and a transmission component 6. When the connecting rope 709 is cut off, the first spring 705 drives the slide plate 704 to move, and the two clamping plates 503 are driven by the spur gear 702, the first bevel gear 602, the second bevel gear 604 and the double-headed screw 504 to move relative to each other to clamp the cable. The self-locking property of the double-headed screw 504 is used to prevent the clamping plates 503 from loosening. There is no need for traditional wire pressers and power components such as batteries and motors, which significantly reduces the manufacturing cost of the spacer rods and avoids safety hazards such as explosions caused by thermal runaway of batteries. In addition, the first magnetic block 711 on the slide plate 704 is magnetically attracted to the second magnetic block 712 on the limit plate 710, which makes up for the problem of insufficient spring elasticity, further enhances the clamping force, and ensures that the spacer rods and cables are firmly and reliably connected.

[0038] Since the cable is long and is in a slightly bent state, there is a certain difference in the distance between the upper and lower cables. Therefore, it is necessary to ensure that the distance between the two fixing components 5 is close to the distance between the upper and lower cables. In this regard, the following embodiment is provided.

[0039] See also Figure 1 、 Figure 2 、 Figure 8 and Figure 9 In the embodiment of the present invention, two insulators 2 are provided on the phase spacer body 1, and a telescopic connection assembly 3 is provided between the two insulators 2. The two insulators 2 are elastically connected by the telescopic connection assembly 3. The telescopic connection assembly 3 includes a connecting cylinder 301, a connecting column 302, and a second spring 303. The connecting cylinder 301 and the connecting column 302 are respectively fixedly connected to the two insulators 2. One end of the connecting column 302 extends into the interior of the connecting cylinder 301. The second spring 303 is provided in the connecting cylinder 301. The connecting column 302 is elastically connected to the connecting cylinder 301 via the second spring 303. The arrangement of the connecting column 302, the connecting cylinder 301, and the spring allows the overall length of the phase spacer body 1 to be changed, so that when the two cables move relative to each other, a certain amount of buffering can be obtained through the telescopic connection assembly 3. When the cables are relatively displaced due to factors such as wind force, thermal expansion and contraction, the telescopic connection assembly 3 can absorb the impact force through the elastic deformation of the spring, thereby preventing the phase spacer body 1 from being damaged due to excessive stress caused by the rigid connection.

[0040] In this embodiment, preferably, a rope winding rod 8 is fixedly installed on one side of the connecting tube 301, and a notch 801 is opened at the end of the rope winding rod 8 away from the connecting tube 301, and the connecting rope 709 passes through the notch 801, and a locking bolt 9 is threadedly installed at the end of the rope winding rod 8 away from the connecting tube 301, one end of the locking bolt 9 extends into the notch 801 and presses on the connecting rope 709, and the other end of the locking bolt 9 is fixedly installed with a knob 10; when it is necessary to reduce the overall length of the inter-phase spacer bar body 1, a part of the connecting rope 709 is wrapped around the rope winding rod 8, the more the number of wraps, the shorter the length of the inter-phase spacer bar body 1. After adjusting to the appropriate length, the locking bolt 9 is tightened by the knob 10 so that the locking bolt 9 is pressed on the connecting rope 709 to lock the connecting rope 709; during installation, the distance between the two cables at the to-be-installed position can be measured by a remote distance measuring device, and then the inter-phase spacer bar body 1 to be installed can be adjusted to the appropriate length.

[0041] The present invention arranges the connecting tube 301, the connecting column 302 and the second spring 303 in the telescopic connecting assembly 3, so that the length of the phase spacer rod body 1 can be elastically adjusted as the distance between the upper and lower cables changes, buffering the force during the relative movement of the cables and avoiding damage to the spacer rod due to the rigid connection; the rope winding rod 8 cooperates with the locking bolt 9 to adjust the number of windings of the connecting rope 709 according to the distance measurement result, accurately control the length of the spacer rod body, adapt to the installation requirements of cables with different spacings, improve operational adaptability and installation reliability, and, when the connecting rope 709 is cut off, the lock on the length of the phase spacer rod body 1 can be released without the need for other operations, thereby improving the convenience of installation.

[0042] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A transmission line spacer, comprising an interphase spacer body (1) and a fixing assembly (5) arranged at both ends of the interphase spacer body (1), the fixing assembly (5) comprising a guide rail (501) and two oppositely arranged clamping plates (503), a connecting seat (4) being fixedly provided at both ends of the interphase spacer body (1), the guide rail (501) being fixedly connected to the connecting seat (4), and the two clamping plates (503) being slidably connected to the guide rail (501), characterized in that: A transmission assembly (6) is provided on the side of the guide rail (501) away from the connecting seat (4), and a driving assembly (7) is provided on the side of the guide rail (501) away from the clamping plate (503). The driving assembly (7) is connected to the two clamping plates (503) through the transmission assembly (6) to drive the two clamping plates (503) to move relative to each other. The driving assembly (7) includes a driving box (701), a slide plate (704) slidably arranged in the driving box (701), a first spring (705) arranged in the driving box (701) and a connecting rope (709). The slide plate (704) is elastically connected to the side wall of the driving box (701) close to the connecting seat (4) through the first spring (705). The first spring (705) is in a compressed state. The two ends of the connecting rope (709) are respectively connected to the slide plates (704) in the two driving assemblies (7). When the slide plate (704) moves, it drives the clamping plates (503) to move through the transmission assembly (6).

2. A transmission line spacer according to claim 1, characterized in that: Two slide seats (502) are slidably mounted inside the guide rail (501), and two clamping plates (503) are fixedly connected to the two slide seats (502) respectively. A double-headed screw (504) is rotatably mounted inside the guide rail (501), and the double-headed screw (504) passes through the two slide seats (502), and the double-headed screw (504) is threadedly connected to the two slide seats (502).

3. A transmission line spacer according to claim 2, characterized in that: The transmission assembly (6) comprises a transmission box (601), a rotating shaft (603), a first bevel gear (602) and a second bevel gear (604); the transmission box (601) is fixedly mounted on a side of the guide rail (501) away from the connecting seat (4); one end of the rotating shaft (603) is located in the transmission box (601); the other end of the rotating shaft (603) is located in the driving box (701); and the rotating shaft (603) rotates with the transmission box (601) and the driving box (701). The first bevel gear (602) and the second bevel gear (604) are both arranged in the transmission box (601), the top end of the double-headed screw (504) extends into the transmission box (601), and the first bevel gear (602) is fixedly sleeved on the top end of the double-headed screw (504), and one end of the rotating shaft (603) extends into the transmission box (601) and is fixedly connected to the second bevel gear (604), and the first bevel gear (602) and the second bevel gear (604) are meshed.

4. A transmission line spacer according to claim 3, characterized in that: The driving assembly (7) further comprises a spur gear (702) and a rack (703), wherein the rack (703) is fixedly mounted on a side of the slide plate (704) away from the first spring (705), and the spur gear (702) is fixedly sleeved on an end of the rotating shaft (603) extending into the driving box (701), and the rack (703) is meshed with the spur gear (702).

5. A transmission line spacer according to claim 3, characterized in that: A sliding post (706) is fixedly installed on one side of the slide plate (704) close to the connecting seat (4), and the sliding post (706) passes through the side wall of the drive box (701) close to the connecting seat (4). A connecting disk (707) is fixedly installed on one end of the sliding post (706) away from the slide plate (704), and a connecting ring (708) is fixedly installed on one side of the connecting disk (707) away from the sliding post (706). The end of the connecting rope (709) is fixedly connected to the connecting ring (708).

6. A transmission line spacer according to claim 4, characterized in that: A first magnetic block (711) is embedded and installed on the slide plate (704); a limiting plate (710) is fixedly installed in the middle of the inner cavity of the drive box (701); a through hole for the rack (703) to pass through is opened on the limiting plate (710); a second magnetic block (712) is embedded and installed on the limiting plate (710); the first magnetic block (711) and the second magnetic block (712) are magnetically attracted to each other.

7. A transmission line spacer according to claim 1, characterized in that: Two insulators (2) are provided on the interphase spacer rod body (1), a telescopic connection assembly (3) is provided between the two insulators (2), and the two insulators (2) are elastically connected via the telescopic connection assembly (3).

8. A transmission line spacer according to claim 7, characterized in that: The telescopic connection assembly (3) comprises a connection tube (301), a connection column (302) and a second spring (303); the connection tube (301) and the connection column (302) are fixedly connected to the two insulators (2) respectively; one end of the connection column (302) extends into the interior of the connection tube (301); the second spring (303) is provided in the connection tube (301); and the connection column (302) is elastically connected to the connection tube (301) via the second spring (303).

9. A transmission line spacer according to claim 8, characterized in that: A rope winding rod (8) is fixedly mounted on one side of the connecting tube (301), a notch (801) is provided at one end of the rope winding rod (8) away from the connecting tube (301), and the connecting rope (709) passes through the notch (801), and a locking bolt (9) is threadedly mounted on one end of the rope winding rod (8) away from the connecting tube (301), one end of the locking bolt (9) extends into the notch (801) and presses on the connecting rope (709), and a knob (10) is fixedly mounted on the other end of the locking bolt (9).

10. A transmission line spacer according to claim 5, characterized in that: The connecting disk (707) is made of rubber. When the clamping plate (503) clamps the cable, the connecting disk (707) is attached to the outer wall of the transmission box (601).

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