Power cable convenient for butt joint connection of cables

Abstract

The invention discloses a power cable convenient for cable butt joint connection, and relates to the technical field of power cables, the power cable comprises two conductors, the outer sides of the conductors are sleeved with neck bushes, and the outer sides of the neck bushes are provided with supporting and traction butt joint mechanisms; the supporting and traction butt joint mechanism comprises a corrugated pipe, a lantern ring, a semi-arc sleeve, a connecting block, an elastic rope, a clamping block, an embedding groove, a clamping groove, an arc-shaped cover, flame-retardant cotton, a heat conduction rubber strip, an iron gauze and a limiting groove, and the corrugated pipe is connected to the outer side of the neck bush in a sleeving mode. Through cooperation of the clamping grooves and the clamping blocks, the semi-arc sleeves are conveniently limited on the outer sides of the lantern rings through the connecting blocks, the splicing convenience is improved, and when two cables need to be in butt joint, the semi-arc sleeves are pulled to move, so that the semi-arc sleeves on the two cables are mutually clamped on the outer sides of the lantern rings of the two cables, and the elastic ropes on the two conductors are forced to be mutually staggered and pulled.

Description

Technical Field

[0001] The present invention relates to the technical field of power cables, in particular to a power cable that is convenient for cable butt connection. Background Art

[0002] Power cables are used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. When using cables, two cables need to be connected together to increase the transmission distance of the cables.

[0003] However, when the existing cables are docked, tools are needed to assist in the connection, and the operation steps are relatively cumbersome, which makes it inconvenient to quickly splice and align the cables, affecting the efficiency of the connection. In addition, after the cables are connected, it is inconvenient to bend and extend the cables, which reduces the stability of the connection and makes it easy to disconnect. Therefore, in order to avoid the above technical problems, it is necessary to provide a power cable that is convenient for cable docking connection to overcome the above defects in the prior art. Summary of the invention

[0004] The present invention provides a power cable that is convenient for cable docking connection, which can effectively solve the problem proposed in the above background technology that tools are needed for auxiliary connection, the operation steps are relatively cumbersome, it is not convenient to perform rapid splicing and alignment, and the connection efficiency is affected. In addition, after the cable is connected, it is not convenient to bend and extend, which reduces the stability of the connection and is prone to disconnection.

[0005] To achieve the above object, the present invention provides the following technical solution: a power cable that is convenient for cable docking connection, comprising two conductors, the outer sides of the conductors are sleeved with inner sleeves, the outer sides of the inner sleeves are provided with a support and traction docking mechanism, and the support and traction docking mechanism comprises a corrugated tube;

[0006] The outer side of the inner liner is sleeved with a bellows, the outer side of the bellows is equidistantly and fixedly sleeved with a collar, and the outer side of the bellows is symmetrically and movably sleeved with a semi-arc sleeve at positions on both sides of the collar corresponding to the collar, and connecting blocks are equidistantly clamped between two opposite semi-arc sleeves, and elastic ropes are clamped inside the connecting blocks, and a limiting groove is provided between two adjacent connecting blocks corresponding to the outer side of the semi-arc sleeve;

[0007] The outer side of the collar is provided with embedding grooves at equal intervals, the inner wall of the embedding groove is provided with clamping grooves at positions on both sides of the connecting block, and the two ends of the connecting block are clamped with clamping blocks at positions inside the clamping grooves;

[0008] An arc cover is symmetrically sleeved at the outer side of the bellows corresponding to the outer side of the ring, and flame-retardant cotton is equidistantly clamped on the inner walls of the two arc covers. Heat-conducting adhesive strips are adhered to adjacent ends of the two arc covers, and wire mesh is fixedly sleeved on the outer sides of the two arc covers.

[0009] According to the above technical solution, the outer diameter of the semi-arc sleeve is equal to the outer diameter of the ring, the inner diameter of the semi-arc sleeve is smaller than the inner diameter of the ring, and the opening position of the limiting groove corresponds to the opening position of the embedding groove.

[0010] According to the above technical solution, the width of the inner wall of the limiting groove and the width of the inner wall of the embedding groove are both greater than the outer diameter of the elastic rope, and the total number of the limiting grooves and connecting blocks is half of the total number of the embedding grooves.

[0011] According to the above technical solution, the connecting block is intermittently clamped inside the embedded groove, the outer side of the connecting block is in contact with the inner wall of the embedded groove, and the connecting block is made of rubber. One end of the clamping groove and the other end of the clamping groove are both provided with arc surfaces, and the inner wall of the flame-retardant cotton is provided with a notch corresponding to the outer side of the elastic rope, and the inner wall of the flame-retardant cotton is in contact with the outer side of the corrugated tube.

[0012] According to the above technical solution, a connection reinforcement mechanism is provided on the outside of the wire mesh, and the connection reinforcement mechanism includes an outer bushing;

[0013] An outer sleeve is sleeved on the outside of the wire mesh, and a fixing ring is fixedly sleeved equidistantly on the outside of the outer sleeve, positioning holes are opened equidistantly on the outside of the fixing ring, sealing rings are movably sleeved on the outside of the outer sleeves on the two conductors, an armored extension tube is clamped between the two sealing rings, a sleeve is clamped on the other end of the sealing ring, a buckle ring is clamped on the other end of the sleeve at a position corresponding to the outside of the fixing ring, a shaft sleeve is equidistantly rotatably connected to the outside of the buckle ring, a pin is connected inside the shaft sleeve by a thread, a driven gear ring is fixedly sleeved on the outside of the shaft sleeve at a position corresponding to the outside of the buckle ring, a rotating ring is sleeved on the outside of the sleeve by a thread, and an active gear ring is clamped on one end of the rotating ring.

[0014] According to the above technical solution, the outer side of the outer bushing is coated with anti-corrosion paint, the installation position of the fixing ring corresponds to the installation position of the sleeve ring, and the sealing ring is elastic waterproof rubber.

[0015] According to the above technical solution, one end of the pin passes through the buckle ring and is embedded in the positioning hole, the installation position of the sleeve corresponds to the opening position of the positioning hole, the outer side of the rotating ring is evenly provided with anti-slip grooves, and the active gear ring and the driven gear ring are meshed with each other.

[0016] According to the above technical solution, a heat conduction and filling mechanism is arranged inside the inner sleeve, and the heat conduction and filling mechanism includes an insulating belt;

[0017] An insulating tape is wound around the outside of the conductor, a heat-conducting layer is sleeved on the outside of the insulating tape, a rubber sleeve is sleeved on the outside of the heat-conducting layer, an arc-shaped support plate is clamped at equal intervals on the inner wall of the rubber sleeve, and a rubber tube is filled between the arc-shaped support plate and the rubber sleeve, a groove is opened on the outside of the heat-conducting layer at a position corresponding to the inside of the arc-shaped support plate, and a carbon fiber strip is clamped between two adjacent grooves on the outside of the heat-conducting layer;

[0018] The outer side of the rubber sleeve is sleeved with a flame retardant layer, the inner side of the flame retardant layer is equidistantly clamped with reinforcing ribs, and the outer side of the flame retardant layer is sleeved with a reinforcing net.

[0019] According to the above technical solution, the insulating tape is spirally wound on the outside of the conductor, the heat-conducting layer is filled with thermal grease, and one end of the arc-shaped support plate is embedded in the groove.

[0020] According to the above technical solution, the outer side of the rubber tube fits with the inner wall of the arc-shaped support plate, the inside of the rubber tube is filled with filling cotton, the flame retardant layer is filled with chlorinated paraffin and chlorinated polyethylene, and the outer side of the reinforcing net fits with the inner wall of the inner sleeve.

[0021] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0022] 1. A support and traction docking mechanism is set. Through the cooperation of the card slot and the card block, the semi-arc sleeve is conveniently limited to the outside of the ring by the connection block, which improves the convenience of splicing. The ring and the semi-arc sleeve support the arc cover together, so that the two arc covers are conveniently spliced ​​on the outside of the ring, and reinforced by wire mesh to prevent separation, ensuring the stability of splicing, and the heat is transferred through the thermal conductive strip to facilitate heat dissipation. At the same time, the arc cover and the corrugated tube are filled with flame-retardant cotton to improve the flame-retardant effect of the cable. Through the cooperation of elastic rope, ring and semi-arc sleeve, the cable is pulled to reset after bending.

[0023] When two cables need to be connected, the two semi-arc sleeves at the adjacent ends of the two conductors are removed from the rings, and then the semi-arc sleeves are pulled to move by using the telescopic characteristics of the elastic rope, so that the semi-arc sleeve on one conductor is clamped on the outside of the ring of the other conductor, and the semi-arc sleeve on the other conductor is clamped on the outside of the ring on one conductor, forcing the elastic ropes on the two conductors to cross-pull each other, pulling the two cables together, thereby improving the convenience of connection.

[0024] 2. A connection reinforcement mechanism is provided, which is conveniently sleeved on the outside of the outer bushing through the cooperation of the sleeve and the buckle ring, and then the active gear ring and the driven gear ring are cooperated to facilitate the rotation of the rotating ring to push the shaft sleeve on the outside of the buckle ring to rotate together, thereby pushing the pin to rotate and descend, and embed into the positioning hole on the outside of the fixed ring, fixing the position of the armored extension tube, the sealing ring and the sleeve;

[0025] During splicing, the sealing ring and sleeve at the other end of the armored extension tube are sleeved on another cable and fixed by a rotating ring, which improves the convenience and stability of the connection between the two cables. In addition, due to the bending and extension characteristics of the armored extension tube, the cable can be bent conveniently, which improves the adaptability. At the same time, the inner wall of the sealing ring fits tightly with the outer side of the outer sleeve to ensure the sealing. In addition, when splitting the cable, the skin is peeled according to the position of the fixing ring to expose the sleeve ring and the semi-arc sleeve, which is convenient for subsequent connection and improves the adaptability.

[0026] 3. A heat conduction and filling mechanism is set up. The insulation effect of the cable is improved by the cooperation of the insulating tape and the rubber sleeve to prevent leakage. The rubber sleeve is supported by the cooperation of the groove, the arc support plate and the rubber tube, so that there is a gap between the rubber sleeve and the heat conduction layer to facilitate the subsequent heat diffusion. At the same time, because the arc support plate and the rubber tube are elastic, the support effect is ensured while facilitating the bending of the cable;

[0027] Through the cooperation of the thermal conductive layer and the carbon fiber, the heat generated by the conductor is easily transferred, and the heat is diffused and transferred in the gap between the rubber sleeve and the thermal conductive layer, which improves the heat dispersion effect, prevents heat concentration, and reduces the temperature inside the cable. At the same time, the flame retardant effect of the cable is increased by the flame retardant layer, and the flame retardant layer is reinforced with reinforcing ribs and reinforcing nets to increase the strength of the flame retardant layer and prevent breakage.

[0028] In summary, through the cooperation of the supporting and traction docking mechanism and the connection reinforcement mechanism, with the help of auxiliary tools, the two cables can be spliced, aligned and fixed together. At the same time, the two connections are extensible and bendable, which is convenient for bending and ensures the stability of the connection. In addition, the inside of the cable is filled through the heat conduction and filling mechanism to improve the flame retardancy and heat dissipation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0030] In the attached picture:

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 The present invention Figure 1 Schematic diagram of the structure of the middle A area;

[0033] Figure 3 It is a schematic diagram of the installation structure of the fixing ring of the present invention;

[0034] Figure 4It is a schematic diagram of the installation structure of the elastic rope of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the support and traction docking mechanism of the present invention;

[0036] Figure 6 The present invention Figure 5 Schematic diagram of the structure of B;

[0037] Figure 7 It is a schematic diagram of the installation structure of the flame retardant cotton of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the connection reinforcement mechanism of the present invention;

[0039] Fig. 9 The present invention Figure 8 Schematic diagram of the structure of the middle C area;

[0040] Fig.10 It is a structural schematic diagram of the heat conduction and filling mechanism of the present invention;

[0041] Fig.11 It is a schematic diagram of the installation structure of the carbon fiber strip of the present invention.

[0042] Numbers in the figure: 1, conductor; 2, inner sleeve;

[0043] 3. Support and traction docking mechanism; 301. Bellows; 302. Ring; 303. Half arc sleeve; 304. Connecting block; 305. Elastic rope; 306. Block; 307. Embedding groove; 308. Slot; 309. Arc cover; 310. Flame retardant cotton; 311. Thermal conductive rubber strip; 312. Wire mesh; 313. Limiting groove;

[0044] 4. Connecting reinforcement mechanism; 401. Outer bushing; 402. Fixing ring; 403. Positioning hole; 404. Sealing ring; 405. Armored extension tube; 406. Sleeve; 407. Retaining ring; 408. Bushing; 409. Latch; 410. Driven gear ring; 411. Rotating ring; 412. Active gear ring;

[0045] 5. Heat conduction and filling mechanism; 501. Insulation tape; 502. Heat conduction layer; 503. Rubber sleeve; 504. Arc support plate; 505. Rubber tube; 506. Groove; 507. Carbon fiber strip; 508. Flame retardant layer; 509. Reinforcement ribs; 510. Reinforcement mesh. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0047] Example: Figure 1-11 As shown, the present invention provides a technical solution, a power cable that is convenient for cable docking connection, comprising two conductors 1, an inner sleeve 2 is sleeved on the outer side of the conductor 1, a support and traction docking mechanism 3 is arranged on the outer side of the inner sleeve 2, and the support and traction docking mechanism 3 comprises a corrugated tube 301, a ring 302, a semi-arc sleeve 303, a connecting block 304, an elastic rope 305, a clamping block 306, an embedding groove 307, a clamping groove 308, an arc cover 309, a flame retardant cotton 310, a thermal conductive adhesive strip 311, a wire mesh 312 and a limit groove 313;

[0048] The outer side of the inner liner 2 is sleeved with a bellows 301, and the outer side of the bellows 301 is equidistantly and fixedly sleeved with a collar 302, and the outer side of the bellows 301 is symmetrically and movably sleeved with a semi-arc sleeve 303 at positions on both sides of the collar 302, and a connecting block 304 is equidistantly clamped between two opposite semi-arc sleeves 303, and an elastic rope 305 is clamped inside the connecting block 304. A limiting groove 313 is provided between the outer side of the semi-arc sleeve 303 and the two adjacent connecting blocks 304. In order to facilitate the limiting of the semi-arc sleeve 303, the outer diameter of the semi-arc sleeve 303 is equal to the outer diameter of the collar 302, and the inner diameter of the semi-arc sleeve 303 is smaller than the inner diameter of the collar 302, and the opening position of the limiting groove 313 corresponds to the opening position of the embedding groove 307.

[0049] Embedding grooves 307 are equidistantly provided on the outer side of the ring 302, and clamping grooves 308 are provided on the inner wall of the embedding groove 307 at positions on both sides of the connecting block 304. Clamping blocks 306 are clamped at positions inside the clamping grooves 308 at both ends of the connecting block 304. In order to facilitate the limiting of the elastic rope 305, the inner wall width of the limiting groove 313 and the inner wall width of the embedding groove 307 are both greater than the outer diameter of the elastic rope 305. The total number of the limiting grooves 313 and the connecting block 304 is half the total number of the embedding grooves 307 respectively.

[0050] The outer side of the bellows 301 corresponds to the outer side of the collar 302 and is symmetrically sleeved with an arc cover 309. The inner walls of the two arc covers 309 are equidistantly clamped with flame retardant cotton 310. The adjacent ends of the two arc covers 309 are both adhered with heat conductive adhesive strips 311. The outer sides of the two arc covers 309 are fixedly sleeved with wire mesh 312. In order to facilitate splicing, the connecting block 304 is intermittently clamped inside the embedding groove 307. The outer side of the connecting block 304 fits the inner wall of the embedding groove 307. The connecting block 304 is made of rubber. One end of the clamping block 306 and one end of the clamping groove 308 are both provided with an arc surface. The inner wall of the flame retardant cotton 310 corresponds to the outer side of the elastic rope 305. The inner wall of the flame retardant cotton 310 fits the outer side of the bellows 301.

[0051] A connection reinforcement mechanism 4 is arranged outside the wire mesh 312, and the connection reinforcement mechanism 4 includes an outer bushing 401, a fixing ring 402, a positioning hole 403, a sealing ring 404, an armored extension tube 405, a sleeve 406, a buckle 407, a sleeve 408, a latch 409, a driven gear ring 410, a rotating ring 411 and a driving gear ring 412;

[0052] An outer sleeve 401 is sleeved on the outside of the wire mesh 312, and a fixing ring 402 is equidistantly fixedly sleeved on the outside of the outer sleeve 401, and positioning holes 403 are equidistantly opened on the outside of the fixing ring 402. The outer sides of the outer sleeves 401 on the two conductors 1 are movably sleeved with sealing rings 404. In order to improve the anti-corrosion effect, the outer sides of the outer sleeves 401 are coated with anti-corrosion paint. The installation position of the fixing ring 402 corresponds to the installation position of the sleeve 302. The sealing ring 404 is elastic waterproof rubber. An armored extension tube 405 is clamped between the two sealing rings 404. The other end of the sealing ring 404 is clamped with a sleeve 406, and the other end of the sleeve 406 is clamped at the position corresponding to the outer side of the fixing ring 402 There is a buckle ring 407, and a shaft sleeve 408 is equidistantly connected to the outer side of the buckle ring 407 for rotation. A pin 409 is connected to the inner side of the shaft sleeve 408 through a thread. A driven gear ring 410 is fixedly sleeved at the outer side of the shaft sleeve 408 corresponding to the outer side of the buckle ring 407. A rotating ring 411 is sleeved on the outer side of the sleeve 406 through a thread. An active gear ring 412 is clamped at one end of the rotating ring 411. In order to improve the convenience of connection, one end of the pin 409 passes through the buckle ring 407 and is embedded in the positioning hole 403. The installation position of the shaft sleeve 408 corresponds to the opening position of the positioning hole 403. The outer side of the rotating ring 411 is evenly provided with anti-slip grooves, and the active gear ring 412 and the driven gear ring 410 are meshed with each other.

[0053] The inner liner 2 is provided with a heat conduction and filling mechanism 5, which includes an insulating tape 501, a heat conduction layer 502, a rubber sleeve 503, an arc support plate 504, a rubber tube 505, a groove 506, a carbon fiber strip 507, a flame retardant layer 508, a reinforcing rib 509 and a reinforcing mesh 510;

[0054] An insulating tape 501 is wound around the outside of the conductor 1, a heat-conducting layer 502 is sleeved on the outside of the insulating tape 501, a rubber sleeve 503 is sleeved on the outside of the heat-conducting layer 502, an arc-shaped support plate 504 is equidistantly clamped on the inner wall of the rubber sleeve 503, and a rubber tube 505 is filled between the arc-shaped support plate 504 and the rubber sleeve 503, a groove 506 is opened on the outside of the heat-conducting layer 502 at a position corresponding to the inside of the arc-shaped support plate 504, and a carbon fiber strip 507 is clamped between two adjacent grooves 506 on the outside of the heat-conducting layer 502. In order to improve the heat conduction effect, the insulating tape 501 is spirally wound around the outside of the conductor 1, the inside of the heat-conducting layer 502 is filled with thermal conductive silicone grease, and one end of the arc-shaped support plate 504 is embedded in the groove 506;

[0055] A flame retardant layer 508 is sleeved on the outside of the rubber sleeve 503, and reinforcing ribs 509 are equidistantly clamped inside the flame retardant layer 508. A reinforcing net 510 is sleeved on the outside of the flame retardant layer 508. In order to ensure the supporting effect of the arc-shaped support plate 504, the outside of the rubber tube 505 is in contact with the inner wall of the arc-shaped support plate 504, and the inside of the rubber tube 505 is filled with filling cotton. The flame retardant layer 508 is filled with chlorinated paraffin and chlorinated polyethylene, and the outside of the reinforcing net 510 is in contact with the inner wall of the inner liner sleeve 2.

[0056] The working principle and use process of the present invention are as follows: first, the conductor 1 is wrapped and coated by the insulating tape 501, and cooperated with the rubber sleeve 503 to improve the insulation effect of the cable and prevent leakage. Then, the arc support plate 504 is limited by the cooperation of the groove 506, so that the arc support plate 504 can support the rubber sleeve 503, so that there is a gap between the rubber sleeve 503 and the heat conductive layer 502, which is convenient for the subsequent heat diffusion. At the same time, because the arc support plate 504 and the rubber tube 505 are elastic, the support effect is ensured while facilitating the bending of the cable;

[0057] Next, the heat generated by the conductor 1 is conveniently transferred by the heat conductive layer 502, so that the heat diffuses in the gap between the rubber sleeve 503 and the heat conductive layer 502 to reduce the temperature. The heat is laterally transferred by the carbon fiber strips 507 to further improve the heat dispersion effect, prevent the heat from being concentrated, and reduce the temperature inside the cable. At the same time, the flame retardant effect of the cable is increased by the flame retardant layer 508. The flame retardant layer 508 is reinforced by the reinforcement ribs 509 and the reinforcement net 510 to improve the strength of the flame retardant layer 508 and prevent the occurrence of breakage.

[0058] Next, by the cooperation of the clamping block 306 and the clamping groove 308, it is convenient to limit the connection block 304 inside the embedding groove 307 outside the ring 302, so that the connection block 304 and the semi-arc sleeve 303 are spliced ​​on the outside of the corrugated tube 301, which is convenient for the ring 302 and the semi-arc sleeve 303 to cooperate and support the arc cover 309, so that the two arc covers 309 are conveniently spliced ​​on the outside of the ring 302. At the same time, the two arc covers 309 are reinforced by the wire mesh 312 to prevent separation and ensure the stability of the splicing. At the same time, the arc cover 309 and the corrugated tube 301 are filled with flame-retardant cotton 310 to further improve the flame-retardant effect of the cable. Then, through the telescopic characteristics of the elastic rope 305, and in cooperation with the ring 302 and the semi-arc sleeve 303, the cable is pulled to reset after the cable is bent;

[0059] Next, when two cables are butted together, the two semi-arc sleeves 303 at the adjacent ends of the two conductors 1 are removed from the ferrule 302, and then the semi-arc sleeves 303 are conveniently pulled to move by the telescopic characteristics of the elastic rope 305, so that the semi-arc sleeve 303 on one conductor 1 is clamped on the outer side of the ferrule 302 of the other conductor 1, and the semi-arc sleeve 303 on the other conductor 1 is clamped on the outer side of the ferrule 302 of one conductor 1, so that the elastic ropes 305 on the two conductors 1 are intertwined and pulled, and the two cables are pulled to be spliced, forcing the two cables to fit together, and the preliminary butt connection of the two cables is completed;

[0060] Finally, during the docking process, the sealing rings 404 and sleeves 406 at both ends of the armored extension tube 405 are respectively sleeved on the outside of the two cables, and the buckle ring 407 is sleeved on the outside of the fixed ring 402, and then the rotating ring 411 is rotated to drive the active gear ring 412 to rotate, and through the cooperation of the driven gear ring 410, the sleeve 408 is pushed to rotate, forcing the pin 409 to rotate and descend, and embed into the positioning hole 403 outside the fixed ring 402, so as to position and reinforce the two cables, improve the stability of the connection between the two cables, and because of the bending and extension characteristics of the armored extension tube 405, it is convenient for the cable to bend, and the adaptability is improved. At the same time, the inner wall of the sealing ring 404 is tightly fitted with the outer side of the outer sleeve 401 to ensure the sealing. In addition, when splitting the cable, according to the position of the fixed ring 402, the skin is peeled off to expose the ring 302 and the semi-arc sleeve 303, which is convenient for subsequent connection and improves the adaptability.

[0061] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power cable for facilitating cable butt connection, comprising two conductors (1), characterized in that: The conductor (1) is sleeved with an inner sleeve (2) on its outer side, a support and traction docking mechanism (3) is provided on the outer side of the inner sleeve (2), and the support and traction docking mechanism (3) comprises a bellows (301); The outer side of the inner liner (2) is sleeved with a bellows (301), the outer side of the bellows (301) is equidistantly and fixedly sleeved with a collar (302), and the outer side of the bellows (301) is symmetrically and movably sleeved with a semi-arc sleeve (303) at positions on both sides of the collar (302) corresponding to the collar, and a connecting block (304) is equidistantly clamped between two opposite semi-arc sleeves (303), an elastic rope (305) is clamped inside the connecting block (304), and a limiting groove (313) is provided between two adjacent connecting blocks (304) corresponding to the outer side of the semi-arc sleeve (303); The outer side of the collar (302) is provided with embedding grooves (307) at equal intervals, the inner wall of the embedding groove (307) is provided with clamping grooves (308) at positions on both sides of the connecting block (304), and the two ends of the connecting block (304) are clamped with clamping blocks (306) at positions inside the clamping grooves (308); An arc-shaped cover (309) is symmetrically sleeved at a position on the outside of the bellows (301) corresponding to the outside of the collar (302), flame-retardant cotton (310) is equidistantly clamped on the inner walls of the two arc-shaped covers (309), thermal conductive adhesive strips (311) are adhered to adjacent ends of the two arc-shaped covers (309), and wire meshes (312) are fixedly sleeved on the outside of the two arc-shaped covers (309).

2. A power cable that facilitates cable butt connection according to claim 1, characterized in that: The outer diameter of the semi-arc sleeve (303) is equal to the outer diameter of the collar (302), the inner diameter of the semi-arc sleeve (303) is smaller than the inner diameter of the collar (302), and the opening position of the limiting groove (313) corresponds to the opening position of the embedding groove (307).

3. The power cable for facilitating cable butt connection according to claim 1, characterized in that: The width of the inner wall of the limiting groove (313) and the width of the inner wall of the embedding groove (307) are both greater than the outer diameter of the elastic rope (305), and the total number of the limiting grooves (313) and the connecting blocks (304) is respectively half of the total number of the embedding grooves (307).

4. The power cable for facilitating cable butt connection according to claim 1, characterized in that: The connecting block (304) is intermittently clamped inside the embedding groove (307), the outer side of the connecting block (304) is in contact with the inner wall of the embedding groove (307), and the connecting block (304) is made of rubber. One end of the clamping block (306) and one end of the clamping groove (308) are both provided with arc surfaces. The inner wall of the flame retardant cotton (310) is provided with a notch corresponding to the outer side of the elastic rope (305), and the inner wall of the flame retardant cotton (310) is in contact with the outer side of the corrugated tube (301).

5. The power cable for facilitating cable butt connection according to claim 1, characterized in that: A connection reinforcement mechanism (4) is arranged outside the wire mesh (312), and the connection reinforcement mechanism (4) comprises an outer bushing (401); The outer side of the wire mesh (312) is sleeved with an outer bushing (401), and a fixing ring (402) is equidistantly and fixedly sleeved with the outer side of the outer bushing (401), and positioning holes (403) are equidistantly opened on the outer side of the fixing ring (402), and the outer sides of the two outer bushings (401) on the two conductors (1) are movably sleeved with sealing rings (404), and an armored extension tube (405) is clamped between the two sealing rings (404), and the other end of the sealing ring (404) is clamped with a sleeve (406), and the sleeve (406) ) A buckle ring (407) is clamped at the other end corresponding to the outer position of the fixed ring (402), a shaft sleeve (408) is equidistantly rotatably connected to the outer side of the buckle ring (407), a latch (409) is threadedly connected to the inside of the shaft sleeve (408), a driven gear ring (410) is fixedly sleeved at the outer side of the shaft sleeve (408) corresponding to the outer position of the buckle ring (407), a rotating ring (411) is threadedly sleeved on the outer side of the sleeve (406), and an active gear ring (412) is clamped at one end of the rotating ring (411).

6. A power cable for facilitating cable butt connection according to claim 5, characterized in that: The outer side of the outer bushing (401) is coated with anti-corrosion paint, the installation position of the fixing ring (402) corresponds to the installation position of the sleeve ring (302), and the sealing ring (404) is elastic waterproof rubber.

7. The power cable for facilitating cable butt connection according to claim 5, characterized in that: One end of the latch pin (409) passes through the buckle ring (407) and is embedded in the positioning hole (403). The installation position of the shaft sleeve (408) corresponds to the opening position of the positioning hole (403). The outer side of the rotating ring (411) is evenly provided with anti-slip grooves. The active gear ring (412) and the driven gear ring (410) are meshed with each other.

8. The power cable for facilitating cable butt connection according to claim 7, characterized in that: A heat conduction and filling mechanism (5) is arranged inside the inner sleeve (2), and the heat conduction and filling mechanism (5) comprises an insulating tape (501); An insulating tape (501) is wound around the outside of the conductor (1), a heat-conducting layer (502) is sleeved on the outside of the insulating tape (501), a rubber sleeve (503) is sleeved on the outside of the heat-conducting layer (502), an arc-shaped support plate (504) is clamped equidistantly on the inner wall of the rubber sleeve (503), and a rubber tube (505) is filled between the arc-shaped support plate (504) and the rubber sleeve (503), a groove (506) is provided on the outside of the heat-conducting layer (502) at a position corresponding to the inside of the arc-shaped support plate (504), and a carbon fiber strip (507) is clamped between two adjacent grooves (506) on the outside of the heat-conducting layer (502); The outer side of the rubber sleeve (503) is sleeved with a flame retardant layer (508), the inner side of the flame retardant layer (508) is equidistantly clamped with reinforcing ribs (509), and the outer side of the flame retardant layer (508) is sleeved with a reinforcing net (510).

9. The power cable for facilitating cable butt connection according to claim 7, characterized in that: The insulating tape (501) is spirally wound around the outside of the conductor (1), the interior of the heat-conducting layer (502) is filled with heat-conducting silicone grease, and one end of the arc-shaped support plate (504) is embedded in the interior of the groove (506).

10. The power cable for facilitating cable butt connection according to claim 7, characterized in that: The outer side of the rubber tube (505) is in contact with the inner wall of the arc-shaped support plate (504); the inside of the rubber tube (505) is filled with stuffing cotton; the flame retardant layer (508) is filled with chlorinated paraffin and chlorinated polyethylene; and the outer side of the reinforcing net (510) is in contact with the inner wall of the inner liner (2).

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