Repair equipment for rapid maintenance of power transmission and distribution line and repair method thereof
By using wire clamping and locking mechanisms in power transmission and distribution lines, the problems of increased contact resistance and premature failure of connection points caused by conductor slippage are solved, achieving reliable connection and sealing of conductors and extending the service life of equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-12
- Publication Date
- 2026-04-14
AI Technical Summary
In overhead transmission and distribution lines of power systems, the increased tension on the repaired lines can cause conductor slippage, reduce the contact area, increase contact resistance, and generate high temperatures, leading to premature failure of the connection points and reducing the reliability of the repaired lines.
The conductive tube employs a wire clamping and locking mechanism, including a semi-conical wire clamp, a ring, a spring, a band, and gears. Through meshing and the cooperation of the elastic rope, it achieves reliable clamping and sealing of the wire, prevents slippage, and automatically adjusts the clamping force when the wire slips to maintain good contact.
It effectively prevents wires from slipping when the tensile force exceeds the limit, avoids high temperature generation, delays equipment aging, maintains interface sealing, blocks the intrusion of corrosive media, and improves the durability and reliability of the repair equipment.
Smart Images
Figure CN121863259A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of emergency repair technology for power transmission and distribution lines, specifically to a repair device and method for rapid inspection and repair of power transmission and distribution lines. Background Technology
[0002] During the operation of overhead transmission and distribution lines in power systems, conductors outdoors are often prone to breakage accidents due to external factors such as strong winds, heavy rains, and lightning. Power outages caused by broken conductors can cause great inconvenience to industrial production and residents' lives, and may result in significant economic losses. When repairing faults, splicing hardware is often needed to connect cables. Splicing hardware is used to connect two conductors, which can quickly connect conductors, shorten repair time, restore power supply as soon as possible, and reduce economic losses.
[0003] However, the repaired power transmission and distribution lines will still be exposed to harsh outdoor environments for a long time. Under dynamic loads such as strong winds and icing, the tension on the conductor splice points will increase significantly. When the tension exceeds the design limit of the splice fittings, the conductors are very likely to slip inside the fittings. The slippage of the conductors will destroy the original contact state between the clamp and the conductor, resulting in a sharp reduction in the effective contact area and a sharp increase in contact resistance. The increase in contact resistance will directly generate abnormal high temperatures at the splice points. The high temperature will not only accelerate the aging and damage of the splice fitting materials themselves, but also cause the splice points of the repaired power transmission and distribution lines to fail prematurely, thus reducing the reliability of the repaired lines. Summary of the Invention
[0004] The purpose of this invention is to provide a repair device and method for rapid maintenance of power transmission and distribution lines, so as to solve the problems mentioned above.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A repair device for rapid maintenance of power transmission and distribution lines includes a conductive tube and a fixing plate fixed in the middle of the conductive tube. A wire cap is slidably provided inside the conductive tube. Two wire clamping mechanisms are symmetrically provided inside the conductive tube. A locking mechanism is provided inside the wire cap. The wire clamping mechanism includes two symmetrically arranged and conductive semi-conical wire clamps, a ring disposed on one side of the semi-conical wire clamp, a second spring disposed between the ring and the fixing plate, and multiple meshing teeth fixed to the inner wall of the semi-conical wire clamp. The locking mechanism includes a band and a gear for driving the band to tighten, the gear engaging with a plurality of meshing teeth; Multiple rotating rods are rotatably connected to the inner side of the ring, and an elastic rope is fixedly connected between the middle parts of the multiple rotating rods; Both ends of the conductive tube are slidably provided with a slide frame. A sealing gasket is fixed at one end of the slide frame. A push rod with one end in contact with the slide frame slides through the semi-conical wire clamp. A baffle is rotatably connected to the other end of the push rod. A first spring is fixedly connected between one side of the baffle and the push rod. The outer side of the conductor cap is provided with an annular groove that mates with the end of the rotating rod, and the minimum distance from the baffle to the axis of the conductive tube is less than the outer diameter of the conductor cap.
[0006] As a preferred embodiment of the repair equipment for rapid maintenance of power transmission and distribution lines according to the present invention, the conductive tube has two symmetrically formed conical inner grooves inside, the outer wall of the semi-conical clamp is slidably connected to the conical inner groove, and the outer wall of the semi-conical clamp has the same taper as the conical inner groove, and the diameter of the conical inner groove gradually increases along the direction close to the fixing plate.
[0007] As a preferred embodiment of the repair equipment for rapid maintenance of power transmission and distribution lines according to the present invention, wherein: the inner wall of the semi-conical clamp is a semi-cylindrical surface, and a plurality of the meshing teeth are evenly arranged on the inner wall of the semi-conical clamp along the axial direction.
[0008] As a preferred embodiment of the repair equipment for rapid maintenance of power transmission and distribution lines according to the present invention, the conductor cap includes an opening for insertion and a closed part of a spherical structure for guidance. The opening is initially located inside the carriage, and the closed part is initially located between two semi-conical clamps.
[0009] As a preferred embodiment of the repair equipment for rapid maintenance of power transmission and distribution lines according to the present invention, an opening and closing gap is provided between the side walls of the two semi-conical wire clamps, and a fixing block is fixedly installed on the outside of the conductor cap, with the outside of the fixing block extending into the opening and closing gap.
[0010] As a preferred embodiment of the repair equipment for rapid inspection of power transmission and distribution lines according to the present invention, wherein: both ends of the conductive tube are fixedly installed with a horn-shaped connecting pipe, the slide is slidably connected inside the connecting pipe, and the connecting pipe and the slide are slidably sealed.
[0011] In a preferred embodiment of the repair equipment for rapid maintenance of power transmission and distribution lines according to the present invention, a limiting block is fixedly installed on the push rod, and the limiting block abuts against the end of the semi-conical clamp away from the fixing plate.
[0012] As a preferred embodiment of the repair equipment for rapid maintenance of power transmission and distribution lines according to the present invention, wherein: a meshing tooth is fixedly installed on the inner side of the clamp, an ear plate is fixedly installed at both ends of the clamp, an installation plate is fixedly installed inside the conductor cap, a double-ended screw is rotatably connected to the installation plate, and the two ear plates are respectively screwed to the two ends of the double-ended screw.
[0013] As a preferred embodiment of the repair equipment for rapid maintenance of power transmission and distribution lines according to the present invention, wherein: the gear is coaxially fixed to the outside of the double-ended screw, and one side of the gear extends to the outside of the conductor cap.
[0014] A repair method for a repair device used for rapid maintenance of power transmission and distribution lines includes the following steps: Step 1: Peel off the insulation layer of a predetermined length from the outside of the broken wire end, then insert the wire core from the end of the conductive tube, insert the wire cap into the end of the wire core and push the wire cap to move. During the movement, the gear meshes with multiple teeth in the semi-conical clamp, causing the gear to rotate passively, thereby tightening the clamp to lock the end of the wire core. Step 2: Continue pushing the wire into the conductive tube. After the clamp tightens, the gear can no longer rotate. At this time, the gear pushes the semi-conical wire clamp to move through the meshing teeth and compresses the second spring through the ring until the wire cap extends out from the two semi-conical wire clamps. Continue pushing the wire cap to move. When the outer wall of the wire cap moves, it pushes the rotating rod and the baffle to rotate and expand in sequence. The rotating rod and the baffle stretch the elastic rope and the first spring respectively. When the end of the insulation layer of the wire is sealed with the sealing gasket, the elasticity of the elastic rope causes the rotating rod to rotate into the annular groove. The elasticity of the first spring causes the baffle to rotate to one side of the wire cap. The second spring pushes the ring to make the two semi-conical wire clamps contract and clamp the wire core. The two ends of the broken wire are connected through the semi-conical wire clamps and the conductive tube. Step 3: When the repaired line slips due to excessive axial tension on the conductor caused by overload or other reasons, the conductor, through the locking mechanism, causes the conductor cap to slide relative to the conductive tube. The annular groove on the outside of the conductor cap moves to contact the end of the rotating rod, confining the end of the rotating rod within the annular groove. This causes the rotating rod to push the ring away from the fixed plate, thereby pushing the two semi-conical wire clamps to close towards the center. This further clamps the conductor core, preventing the conductor from being pulled out. At the same time, the end of the conductor cap pushes the slide to move through the push rod, ensuring that the sealing gasket fixed at one end of the slide is always in contact with the end of the conductor's insulation layer, maintaining a sealed state.
[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When the tension on a power transmission and distribution line exceeds the design limit and slippage occurs, the rotating rod automatically extends into the annular groove after installation under the contraction tension of the elastic rope. As the conductor core moves through the locking mechanism, the annular groove on the conductor cap pushes the ring through the rotating rod, which in turn pushes the semi-conical clamp to contract. This further clamps the conductor core, effectively preventing it from coming loose from the conductive tube. At the same time, the further clamping of the conductor core by the semi-conical clamp allows it to regain full contact with the conductor core, thereby avoiding localized high temperatures and delaying the aging and damage of the repair equipment.
[0016] 2. When the conductor core causes the conductor cap to slide, the present invention pushes the baffle at the end of the conductor cap, which in turn causes the push rod to push the slide and the sealing gasket, so that the sealing gasket is always tightly sealed against the end of the conductor insulation layer. This prevents relative displacement of the conductor core, thus preventing rainwater and moisture from corroding the conductive core. It also prevents corrosive media from entering the conductive tube through gaps and causing corrosion damage to the conductive tube and internal parts. This maintains an effective seal at the interface, prevents the intrusion of corrosive media, and slows down the damage rate of the repair equipment in harsh outdoor environments.
[0017] 3. In this invention, the fixing block is initially located within the opening and closing gap between the two semi-conical wire clamp sidewalls. Even if the wire cap rotates during movement, the fixing block remains between the two semi-conical wire clamp sidewalls, thereby limiting the rotation angle of the wire cap. This ensures that the gear can always mesh with the meshing teeth on the inner wall of the semi-conical wire clamp, guaranteeing the reliable implementation of the locking mechanism and providing a guarantee for delaying the repair of equipment damage during subsequent use. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This is a schematic diagram of the first cross-sectional structure of the present invention.
[0020] Figure 3 for Figure 2 A magnified structural diagram at point A.
[0021] Figure 4 for Figure 2 A magnified structural diagram at point B.
[0022] Figure 5 This is a schematic diagram of the first cross-sectional structure of the present invention.
[0023] Figure 6 for Figure 5 A magnified structural diagram at point C.
[0024] Figure 7 This is a three-dimensional structural diagram of the push rod assembly of the present invention.
[0025] Figure 8 This is a three-dimensional structural diagram of the wire cap assembly of the present invention.
[0026] Figure 9 This is a schematic cross-sectional view of the wire cap assembly structure of the present invention.
[0027] Figure 10 This is a schematic diagram of the three-dimensional structure of the hoop assembly of the present invention.
[0028] Figure 11 This is a schematic cross-sectional view of the assembly structure of the gears during meshing according to the present invention.
[0029] Figure 12 This is a cross-sectional view of the push rod and baffle assembly of the present invention.
[0030] In the diagram: 1. Conductive tube; 11. Fixing plate; 2. Connecting tube; 21. Slide; 211. Sealing gasket; 22. Push rod; 221. Limiting block; 23. Baffle; 24. First spring; 3. Ring; 31. Second spring; 32. Rotating rod; 33. Elastic rope; 4. Semi-conical wire clamp; 41. Gnawing teeth; 5. Wire cap; 51. Annular groove; 52. Hoop; 521. Engaging teeth; 522. Ear plate; 53. Mounting plate; 54. Gear; 55. Double-ended screw; 56. Fixing block. Detailed Implementation
[0031] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific configurations and algorithms presented below, but covers any modifications, substitutions, and improvements to elements, components, and algorithms without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description in order to avoid unnecessarily obscuring the invention.
[0032] Example 1, referring to Figure 1-12 The first embodiment of the present invention provides a repair device for rapid maintenance of power transmission and distribution lines. This repair device for rapid maintenance of power transmission and distribution lines includes a conductive tube 1 and a fixing plate 11 fixed in the middle of the conductive tube 1. A wire cap 5 is slidably provided inside the conductive tube 1. Two wire clamping mechanisms are symmetrically provided inside the conductive tube 1. A locking mechanism is provided inside the wire cap 5. The wire clamping mechanism includes two symmetrically arranged and conductive semi-conical wire clamps 4, a ring 3 disposed on one side of the semi-conical wire clamp 4, a second spring 31 disposed between the ring 3 and the fixing plate 11, and a plurality of meshing teeth 41 fixed on the inner wall of the semi-conical wire clamp 4. The locking mechanism includes a band 52 and a gear 54 for driving the band 52 to tighten, the gear 54 engaging with a plurality of teeth 41. Multiple rotating rods 32 are rotatably connected to the inner side of the ring 3, and an elastic rope 33 is fixedly connected between the middle parts of the multiple rotating rods 32; Both ends of the conductive tube 1 are provided with sliding brackets 21. A sealing gasket 211 is fixed at one end of the sliding bracket 21. A push rod 22 with one end in contact with the sliding bracket 21 slides through the semi-conical wire clamp 4. A baffle 23 is rotatably connected to the other end of the push rod 22. A first spring 24 is fixedly connected between one side of the baffle 23 and the push rod 22. The outer side of the wire cap 5 is provided with an annular groove 51 that mates with the end of the rotating rod 32, and the minimum distance from the baffle 23 to the axis of the conductive tube 1 is less than the outer diameter of the wire cap 5.
[0033] The conductive tube 1 has two symmetrically arranged conical inner grooves. The outer wall of the semi-conical wire clamp 4 is slidably connected to the conical inner groove, and the outer wall of the semi-conical wire clamp 4 has the same taper as the conical inner groove. The diameter of the conical inner groove gradually increases along the direction close to the fixed plate 11.
[0034] Both ends of the conductive tube 1 are fixedly installed with a horn-shaped connecting tube 2. The slide 21 is slidably connected inside the connecting tube 2, and the connecting tube 2 and the slide 21 are slidably sealed.
[0035] The inner wall of the semi-conical wire clamp 4 is a semi-cylindrical surface, and multiple meshing teeth 41 are evenly distributed on the inner wall of the semi-conical wire clamp 4 along the axial direction.
[0036] The wire cap 5 includes an opening for insertion and a closed part of a spherical structure for guidance. The opening is initially located inside the carriage 21, and the closed part is initially located between two semi-conical wire clamps 4.
[0037] A limit block 221 is fixedly installed on the push rod 22, and the limit block 221 abuts against the end of the semi-conical wire clamp 4 away from the fixed plate 11.
[0038] The inner side of the clamp 52 is fixedly installed with a meshing tooth 521, and the two ends of the clamp 52 are fixedly installed with ear plates 522. The wire cap 5 is fixedly installed with an installation plate 53, and a double-ended screw 55 is rotatably connected to the installation plate 53. The two ear plates 522 are respectively screwed to the two ends of the double-ended screw 55.
[0039] Gear 54 is coaxially fixed to the outside of double-ended screw 55, and one side of gear 54 extends to the outside of wire cap 5.
[0040] The conductive tube 1 has a marking line 12 on its outer side, which is used to measure the length of the insulation layer that needs to be removed.
[0041] During use, align the ends of the conductors on both sides of the interrupted line of the power transmission and distribution line with the marking line 12 on the outside of the conductive tube 1. Then, mark the position on the insulation layer on the outside of the conductor corresponding to the sealing gasket 211 at the end of the conductor and the conductive tube 1. Then, use an insulation stripping device to strip the insulation layer at the end of the conductor to the set position, so that the conductor core is exposed. The insulation stripping device is existing technology and will not be described in detail here. Then, insert the conductor core from the end of the conductive tube 1. The conductor core passes through the middle of the inner slide 21 of the connector tube 2. Then, insert the end of the conductor core into the opening of the conductor cap. The end of the conductor core pushes the conductor cap 5 to move through the mounting plate 53. Then, the wire is inserted into the conductive tube 1. The end of the wire core moves the wire cap 5 between the two semi-conical clamps 4 via the mounting plate 53. The spherical closed part of the wire cap 5 slides against the meshing teeth 41 inside the semi-conical clamps 4, causing the semi-conical clamps 4 to move along the conical inner groove inside the conductive tube 1 towards the fixing plate 11, increasing the gap between the two semi-conical clamps 4. At the same time, the second spring 31 is compressed. As the wire cap 5 moves between the two semi-conical clamps 4, the gear 54 extending from the wire cap 5 and the semi-conical clamps 4... The meshing teeth 41 on the inner wall of the tapered wire clamp 4 engage and drive, causing the gear 54 to rotate passively. When the gear 54 rotates, it drives the double-headed screw 55 rotatably connected to the mounting plate 53 to rotate, causing the two ear plates 522 screwed together at both ends of the double-headed screw 55 to move closer to each other. This causes the two ends of the clamp 52 to move closer to the center, tightening the clamp 52 along the outer side of the conductor core. At the same time, the biting teeth 521 on the inner side of the clamp 52 bite into the end of the conductor core, thereby locking and fixing the conductor core with high quality, and fixing the conductor cap 5 relative to the end of the conductor core. As the wire continues to be pushed into the conductive tube 1, the clamp 52 tightens, preventing the gear 54 from rotating further. At this point, when the wire cap 5 moves the gear 54, the teeth of the gear 54 abut against the inclined surface of the meshing teeth 41. This, in turn, pushes the semi-conical wire clamp 4 along the conical inner groove inside the conductive tube 1 towards the direction closer to the fixed plate 11, further compressing the second spring 31 through the ring 3. The wire cap 5 extends from the two semi-conical wire clamps 4 at the closed part, continuing to push the wire cap 5 to move. At this time, the outer wall of the closed part of the wire cap 5 moves. The push rod 32 is pushed to rotate outward on the ring 3. Then, due to the contact between the limiting block 221 on the push rod 22 and the end of the semi-conical wire clamp 4 away from the fixed plate 11, the push rod 22 cannot move towards the fixed plate 11 under the action of the elastic force of the second spring 31 pushing the semi-conical wire clamp 4. This allows the wire cap 5 to push the baffle 23 to rotate at the end of the push rod 22, so that both the push rod 32 and the baffle 23 rotate outward and expand, without hindering the movement of the wire cap. At the same time, multiple push rods 32 stretch the elastic rope 33 outward, and multiple baffles 23 stretch the first spring 24 respectively. Continue pushing the wire into the conductive tube 1. When the end of the wire's insulation layer is tightly sealed against the sealing gasket 211, the rotating rod 32 moves to the outside of the annular groove 51, and the end of the baffle 23 moves to the end of the wire cap 5. Then, the elastic force of the elastic rope 33 causes the rotating rod 32 to rotate into the annular groove 51, and the elastic force of the first spring 24 causes the baffle 23 to rotate to the side of the wire cap 5. The second spring 31 pushes the ring so that the two semi-conical clamps 4 contract and clamp the wire core, thereby completing the repair of the power transmission and distribution line. The two ends of the broken wire are connected by the semi-conical clamps 4 and the conductive tube 1.
[0042] When the conductor of the repaired line slips due to excessive axial tension caused by overload or other reasons, the end of the conductor core is locked by the clamp 52 of the locking mechanism during the installation process, so that the end of the conductor core is fixed relative to the conductor cap 5. The conductor core drives the conductor cap 5 to slip relative to the conductive tube 1. The annular groove 51 on the outside of the conductor cap 5 moves to contact the end of the rotating rod 32, so that the end of the rotating rod 32 is limited to the annular groove 51. The rotating rod 32 pushes the ring 3 to move away from the fixed plate 11, thereby pushing the two semi-conical clamps 4 to move along the conical inner groove in the conductive tube 1 away from the fixed plate 11. This causes the two semi-conical clamps 4 to close towards the center, thereby further clamping the conductor core and preventing the conductor from being pulled out. This effectively prevents the conductor core from coming loose from the conductive tube 1. At the same time, the further clamping of the conductor core by the semi-conical clamps 4 can restore full contact between the semi-conical clamps 4 and the conductor core, thereby avoiding the generation of local high temperature and delaying the aging and damage of the repair equipment.
[0043] Among them, the semi-conical clamp 4 and the conductive tube 1 are both made of high-strength aluminum alloy, which gives the repair equipment higher tensile strength and better corrosion resistance, extends its service life, and reduces the operation and maintenance cost throughout the entire life cycle.
[0044] At the same time, the end of the wire cap 5 pushes the baffle 23 to move when it moves, thereby pushing the slide 21 to move through the push rod 22. This causes the sealing gasket 211 fixed at one end of the slide 21 to move, so that the sealing gasket 211 is always pressed against the end of the wire insulation layer to maintain a sealed state, preventing rainwater and moisture from corroding the conductive core. It can also prevent corrosive media from entering the conductive tube 1 through gaps and causing corrosion damage to the conductive tube 1 and internal parts. This maintains an effective seal at the interface, prevents the intrusion of corrosive media, and slows down the damage rate of the repair equipment in harsh outdoor environments.
[0045] Example 2, refer to Figure 3-5 This is the second embodiment of the present invention, which differs from the first embodiment in that: There is an opening and closing gap between the two semi-conical wire clamps 4 and the outside of the wire cap 5 is fixedly installed with a fixing block 56, and the outside of the fixing block 56 extends into the opening and closing gap.
[0046] During use, the fixing block 56 is initially located in the opening and closing gap between the two semi-conical wire clamps 4 side walls. Even if the wire cap 5 rotates during movement, the fixing block 56 remains between the two semi-conical wire clamps 4 side walls, thereby limiting the rotation angle of the wire cap 5. This ensures that the gear 54 can always mesh with the meshing teeth 41 on the inner wall of the semi-conical wire clamp 4, guaranteeing the reliable implementation of the locking mechanism function and providing a guarantee for delaying the repair of equipment damage during subsequent use.
[0047] The remaining structure is the same as that in Example 1.
[0048] A repair method for a repair device used for rapid maintenance of power transmission and distribution lines includes the following steps: Step 1: Peel off the insulation layer of a predetermined length from the outside of the broken wire end, then insert the wire core from the end of the conductive tube 1, insert the wire core end into the wire cap 5 and push the wire cap 5 to move. During the movement, the gear 54 meshes with multiple teeth 41 in the semi-conical wire clamp 4, causing the gear 54 to rotate passively, thereby causing the clamp 52 to tighten to lock the end of the wire core. Step 2: Continue pushing the wire into the conductive tube 1. After the clamp 52 tightens, the gear 54 can no longer rotate. At this time, the gear 54 pushes the semi-conical wire clamp 4 to move through the meshing teeth 41 and compresses the second spring 31 through the ring 3 until the wire cap 5 extends out from the two semi-conical wire clamps 4. Continue pushing the wire cap 5 to move. When the outer wall of the wire cap 5 moves, it pushes the rotating rod 32 and the baffle 23 to rotate and expand in sequence. The rotating rod 32 and the baffle 23 stretch the elastic rope 33 and the first spring 24 respectively. When the end of the insulation layer of the wire is sealed with the sealing gasket 211, the elastic force of the elastic rope 33 causes the rotating rod 32 to rotate into the annular groove 51. The elastic force of the first spring 24 causes the baffle 23 to rotate to one side of the wire cap 5. The second spring 31 pushes the ring to make the two semi-conical wire clamps 4 contract and clamp the wire core. The two ends of the broken wire are connected by the semi-conical wire clamps 4 and the conductive tube 1. Step 3: When the repaired line slips due to excessive axial tension caused by overload or other reasons, the conductor cap 5 slips relative to the conductive tube 1 through the locking mechanism. The annular groove 51 on the outer side of the conductor cap 5 moves to contact the end of the rotating rod 32, so that the end of the rotating rod 32 is confined within the annular groove 51. The rotating rod 32 pushes the ring 3 to move away from the fixed plate 11, thereby pushing the two semi-conical wire clamps 4 to close towards the center, so that the two semi-conical wire clamps 4 further clamp the conductor core and prevent the conductor from being pulled out. At the same time, the end of the conductor cap 5 pushes the slide 21 to move through the push rod 22, so that the sealing gasket 211 fixed at one end of the slide 21 is always in contact with the end of the conductor insulation layer to maintain a sealed state.
[0049] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Those skilled in the art, based on a study of the drawings, specification, and claims, should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other means or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to identify names rather than to indicate any particular order. No reference numerals in the claims should be construed as limiting the scope of protection. The functionality of multiple parts appearing in the claims can be implemented by a single hardware or software module. The appearance of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.
Claims
1. A repair device for rapid inspection and maintenance of power transmission and distribution lines, characterized in that: It includes a conductive tube (1) and a fixing plate (11) fixed in the middle of the conductive tube (1). A wire cap (5) is slidably provided inside the conductive tube (1). Two wire clamping mechanisms are symmetrically provided inside the conductive tube (1). A locking mechanism is provided inside the wire cap (5). The wire clamping mechanism includes two symmetrically arranged and conductive semi-conical wire clamps (4), a ring (3) disposed on one side of the semi-conical wire clamp (4), a second spring (31) disposed between the ring (3) and the fixing plate (11), and multiple meshing teeth (41) fixed on the inner wall of the semi-conical wire clamp (4). The locking mechanism includes a band (52) and a gear (54) for driving the band (52) to tighten, the gear (54) engaging with a plurality of teeth (41); The inner side of the ring (3) is rotatably connected to a plurality of rotating rods (32), and an elastic rope (33) is fixedly connected between the middle parts of the plurality of rotating rods (32). Both ends of the conductive tube (1) are slidably provided with a slide (21). A sealing gasket (211) is fixed at one end of the slide (21). A push rod (22) with one end in contact with the slide (21) slides through the semi-conical wire clamp (4). A baffle (23) is rotatably connected to the other end of the push rod (22). A first spring (24) is fixedly connected between one side of the baffle (23) and the push rod (22). The outer side of the wire cap (5) is provided with an annular groove (51) that matches the end of the rotating rod (32), and the minimum distance from the baffle (23) to the axis of the conductive tube (1) is less than the outer diameter of the wire cap (5).
2. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 1, characterized in that: The conductive tube (1) has two symmetrical conical inner grooves. The outer wall of the semi-conical wire clamp (4) is slidably connected to the conical inner groove, and the outer wall of the semi-conical wire clamp (4) has the same taper as the conical inner groove. The diameter of the conical inner groove gradually increases along the direction close to the fixed plate (11).
3. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 1, characterized in that: The inner wall of the semi-conical wire clamp (4) is a semi-cylindrical surface, and multiple meshing teeth (41) are evenly arranged on the inner wall of the semi-conical wire clamp (4) along the axial direction.
4. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 1, characterized in that: The wire cap (5) includes an opening for insertion and a closed part of a spherical structure for guidance. The opening is initially located inside the carriage (21), and the closed part is initially located between two semi-conical wire clamps (4).
5. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 1, characterized in that: An opening and closing gap is provided between the side walls of the two semi-conical wire clamps (4), and a fixing block (56) is fixedly installed on the outside of the wire cap (5), with the outside of the fixing block (56) extending into the opening and closing gap.
6. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 1, characterized in that: Both ends of the conductive tube (1) are fixedly installed with a horn-shaped connecting tube (2), and the slide (21) is slidably connected inside the connecting tube (2), and the connecting tube (2) and the slide (21) are slidably sealed.
7. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 1, characterized in that: A limiting block (221) is fixedly installed on the push rod (22), and the limiting block (221) abuts against the end of the semi-conical clamp (4) away from the fixing plate (11).
8. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 1, characterized in that: The inner side of the band (52) is fixedly installed with a meshing tooth (521), and ear plates (522) are fixedly installed at both ends of the band (52). The inner side of the wire cap (5) is fixedly installed with an installation plate (53), and a double-headed screw (55) is rotatably connected to the installation plate (53). The two ear plates (522) are respectively screwed to the two ends of the double-headed screw (55).
9. The repair equipment for rapid maintenance of power transmission and distribution lines according to claim 8, characterized in that: The gear (54) is coaxially fixed to the outside of the double-ended screw (55), and one side of the gear (54) extends to the outside of the wire cap (5).
10. A repair method for the rapid maintenance repair equipment for power transmission and distribution lines according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Peel off the insulation layer of a set length on the outside of the broken wire end, and then insert the wire core from the end of the conductive tube (1). Insert the wire core end into the wire cap (5) and push the wire cap (5) to move. During the movement, the gear (54) meshes with multiple teeth (41) in the semi-conical wire clamp (4), causing the gear (54) to rotate passively, thereby causing the clamp (52) to tighten to lock the end of the wire core. Step 2: Continue pushing the wire into the conductive tube (1). After the clamp (52) tightens, the gear (54) can no longer rotate. At this time, the gear (54) pushes the semi-conical wire clamp (4) to move through the meshing teeth (41) and compresses the second spring (31) through the ring (3) until the wire cap (5) extends out from the two semi-conical wire clamps (4). Continue pushing the wire cap (5) to move. When the outer wall of the wire cap (5) moves, it pushes the rotating rod (32) and the baffle (23) to rotate and expand in sequence. The rotating rod (32) and the baffle (23) ) stretch the elastic rope (33) and the first spring (24) respectively. When the end of the insulation layer of the wire is sealed against the sealing gasket (211), the elastic force of the elastic rope (33) causes the rotating rod (32) to rotate into the annular groove (51), and the elastic force of the first spring (24) causes the baffle (23) to rotate to the side of the wire cap (5). The second spring (31) pushes the ring so that the two semi-conical wire clamps (4) contract and clamp the wire core. The two ends of the broken wire are connected by the semi-conical wire clamps (4) and the conductive tube (1). Step 3: When the repaired line slips due to excessive axial tension caused by overload, the wire cap (5) is moved relative to the conductive tube (1) by the locking mechanism. The annular groove (51) on the outside of the wire cap (5) moves to the end of the rotating rod (32), so that the end of the rotating rod (32) is limited to the annular groove (51). The rotating rod (32) pushes the ring (3) to move away from the fixed plate (11), thereby pushing the two semi-conical wire clamps (4) to close towards the center, so that the two semi-conical wire clamps (4) further clamp the wire core and prevent the wire from being pulled out. At the same time, the end of the wire cap (5) pushes the slide (21) to move through the push rod (22), so that the sealing gasket (211) fixed at one end of the slide (21) is always in a tight seal with the end of the insulation layer of the wire.