Connector and connection method for mining cable

Abstract

The present invention relates to the field of cable connection, in particular to a connector and a connection method for a mining cable, wherein the connector comprises a first base, a first elastic member is arranged on the first base, a second cable is rotatably installed inside the first base, a second elastic member is arranged at the bottom end of the second cable, and a locking device is arranged on the second elastic member and the first elastic member; the present invention drives a plurality of first clamping blocks and second clamping blocks to move toward the center position of a first placement box by lifting and lowering a contraction member on the locking device, thereby clamping the metal wire and the outer skin of the first cable to prevent the problem of the new and old first cables falling off when being pulled, and at the same time clamping the metal wire and the outer skin inside the first cable to improve the safety during installation, and the metal wire on the first cable has a strong pulling resistance to prevent the first cable from being damaged.

Description

Technical Field

[0001] The invention belongs to the field of cable connection, in particular to a connector and a connection method for a mining cable. Background Art

[0002] When replacing cables in the vertical shaft of a mine, the old cables and new cables need to be connected together through connectors, and then the cables in the vertical shaft are wound and replaced by a rope-changing robot. Therefore, cable connectors are required to cooperate with the rope-changing robot to replace the cables.

[0003] The patent with publication number CN102946021A discloses a cable connection device, including an outer locking body and an inner locking body, the outer locking body is sleeved on the inner locking body, the inner locking body is provided with an inner locking protrusion, the inner locking protrusion is provided with inner locking guide teeth and inner locking positioning ribs, the inner locking guide teeth are arranged in the circumferential direction of the inner locking protrusion, the interior of the outer locking body is provided with an outer locking guide groove and an outer locking positioning rib, the inner locking positioning rib is adjacent to the outer locking positioning rib, the inner locking positioning rib and the outer locking positioning rib can rotate relative to each other along the circumferential direction of the inner locking protrusion, so as to solve the technical problems that the existing cable connection device cannot form a sealed whole before and after assembly, resulting in wear of the connection body, poor contact of the pin body, affecting the transmission of the collected signal and even causing shutdown.

[0004] Although the above-mentioned device can solve the sealing problem after connection during use, when the cable needs to be replaced, the cable is subjected to a large pulling force. If the clamp is used directly to clamp the cable, the outer sheath of the cable may be damaged, and the cable may peel off, causing damage to the cable. Summary of the invention

[0005] The present invention provides a connector and a connection method for a mining cable, which solves the technical problem in the related art that when replacing a cable, the cable is subjected to a large pulling force. If a clamp is used directly to clamp the cable, the outer sheath of the cable may be damaged, and the cable may peel off, thereby causing damage to the cable.

[0006] The first aspect of the present invention discloses a connector for a mining cable, comprising a first base, a first elastic member is arranged on the first base, a second cable is rotatably installed inside the first base, a second elastic member is arranged at the bottom end of the second cable, a locking device is arranged on the second elastic member and the first elastic member, a cable mesh is connected to the locking device, a first cable is placed inside the cable mesh, the locking device is used to clamp the outer wall of the first cable and the metal wire inside the first cable, and the locking devices on the second elastic member and the first elastic member are respectively connected to the new and old first cables; The locking device includes a first placement box, a retracting piece, a first clamping block, a lifting piece, and a second clamping block. The retracting piece, the first clamping block, and the lifting piece are installed on the first placement box. The lifting piece and the retracting piece are slidably installed with the first placement box respectively. The retracting piece is slidably provided with a first clamping block and a second clamping block. The first clamping block and the second clamping block are arranged in a circular array inside the retracting piece. The lifting piece slides to lift the retracting piece, so that the retracting piece rises, driving the plurality of first clamping blocks to retract toward the center of the first placement box, thereby clamping the outer wall of the first cable and the metal inside the first cable.

[0007] As a further optimization scheme of the present invention, the locking device includes a third support column fixedly mounted on the first placement box, a second clamping block is fixedly mounted on the third support column, the lifting member is located at the bottom of the shrinking member, and the contraction of the lifting member is used to drive the shrinking member to rise and fall, the first clamping block and the second clamping block are connected with a support member, a protective member is provided at the bottom of the shrinking member, the protective member is used to prevent the metal wire on the first cable from squeezing the lifting member, the lifting member is connected with a first transmission member, the first transmission member is located inside the first placement box, and the first transmission member is used to drive the lifting member to move and lock.

[0008] As a further optimization scheme of the present invention, the first elastic member includes a plurality of first sliding columns slidably installed inside the first base, the tops of the plurality of first sliding columns are fixedly installed on the first placement box, a first spring is fixedly installed on the bottom of the first placement box, and the first spring is concentric with the first sliding column.

[0009] As a further optimization scheme of the present invention, the second elastic member includes a second sliding column slidably installed at the bottom of the second cable, a second spring is arranged at the bottom of the second cable, the second spring is concentric with the second sliding column, and a locking device and a cable mesh sleeve are also arranged at the bottom of the second sliding column. The locking device and the cable mesh sleeve at the bottom of the second sliding column are symmetrically arranged with the locking device and the cable mesh sleeve at the top of the first sliding column.

[0010] As a further optimization scheme of the present invention, the shrinking part includes a limit rod fixedly installed on the first placement box and symmetrically arranged, a limit protrusion fixedly installed on the first placement box, the limit protrusion is rotatably connected to the limit rod, a fixed plate is slidably installed on the outer wall of the limit rod, a first extrusion block and a second extrusion block are fixedly installed on the fixed plate, and a first clamping block and a second clamping block are slidably arranged on the first extrusion block and the second extrusion block.

[0011] As a further optimization scheme of the present invention, the lifting member includes a first lifting block and a second lifting block slidably installed on the first placement box, and the internal threads of the first lifting block and the second lifting block are installed with a first threaded rod, and the first threaded rod rotates to drive the first lifting block and the second lifting block to move closer to or away from each other.

[0012] As a further optimization scheme of the present invention, the first transmission member includes a first fixed block fixedly mounted on the first placement box, a second screw is rotatably mounted inside the first fixed block, a first gear is fixedly mounted on the end of the first threaded rod close to the second screw, the first gear is meshed with the second screw, a second gear is arranged on the second screw, a handle is rotatably mounted on the first base, a third screw is threadably mounted on the internal thread of the handle, a rack is fixedly mounted on the top end of the third screw, the rack is meshed with the second gear, and a hexagonal groove is arranged on the end of the second screw.

[0013] As a further optimization scheme of the present invention, the support member includes a second support rod fixedly mounted on one of the second clamping blocks, a support block is slidably mounted on the second support rod, a movable groove and a first support rod are provided on the support block, and the first support rod and the second support rod are both engaged with the movable groove.

[0014] As a further optimization solution of the present invention, the protective member includes a second fixed block fixedly mounted on the outer wall of the third support column, a third spring is fixedly mounted on the second fixed block, and a protective plate is fixedly mounted on the end of the third spring.

[0015] The second aspect of the present invention discloses a method for connecting a mining cable, comprising the following steps:

[0016] Step 1: peel off the ends of the new first cable and the old first cable, then peel off the metal wires inside the two first cables, and then abut the two first cables against the protective members inside the two locking devices, thereby completing the alignment of the first cables;

[0017] Step 2: Rotate the second screw rod, the second screw rod drives the first gear to rotate, the first gear drives the first threaded rod to rotate, the first threaded rod drives the first lifting block and the second lifting block to approach the center of the first placement box, thereby lifting the second extrusion block, the second extrusion block drives the first extrusion block to rise, and drives the second clamping block to clamp the metal wire on the first cable, the first clamping block clamps the outer wall of the first cable, thereby completing the clamping work, and preventing the first cable from being damaged when being pulled.

[0018] Step three, rotate the handle, the handle rises and engages with the second gear, the first base and the second cable are provided with a first elastic member and a second elastic member, when the first base and the first placement box approach or move away from each other, the handle is driven to engage with the second gear, and the second clamping block and the first clamping block clamp the first cable until the rope changing work is completed.

[0019] The beneficial effects of the present invention are:

[0020] The connector and connection method of a mining cable described in the present invention drives a plurality of first clamping blocks and a second clamping block to move toward the center position of a first placement box by lifting and lowering a retracting member on a locking device, thereby clamping the metal wire and the outer skin of the first cable to prevent the new and old first cables from falling off when being pulled. At the same time, the metal wire and the outer skin inside the first cable are clamped to improve the safety during installation. The metal wire on the first cable has a strong pulling resistance to prevent the first cable from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the appearance diagram of the overall device of the present invention;

[0022] Figure 2 It is an internal diagram of the overall device of the present invention;

[0023] Figure 3 It is the installation structure diagram of the locking device of the present invention;

[0024] Figure 4 is an installation diagram of the first elastic member and the second elastic member of the present invention;

[0025] Figure 5 It is the internal transmission diagram of the locking device of the present invention;

[0026] Figure 6 It is a matching diagram of the contraction member and the first transmission member of the present invention;

[0027] Figure 7 is a diagram of the installation structure of the protection member and the first transmission member of the present invention;

[0028] Figure 8 It is a diagram of the lower structure position of the first transmission member of the present invention.

[0029] In the figure:

[0030] 1. first base; 11. cable mesh; 12. first cable; 13. second cable; 14. first elastic member; 141. first slide post; 142. first spring; 15. second elastic member; 151. second slide post; 152. second spring;

[0031] 2. Locking device; 21. First placement box; 211. Limiting protrusion; 22. Contraction member; 221. First extrusion block; 222. Fixed plate; 223. Limiting rod; 224. Second extrusion block; 23. First clamping block; 24. Lifting member; 241. First lifting block; 242. First threaded rod; 243. Second lifting block; 25. First transmission member; 251. Second screw rod; 2511. Hexagonal groove; 252. First fixed block; 253. First gear; 254. Second gear; 255. Rack; 256. Third screw rod; 257. Handle; 26. Second clamping block; 27. Support member; 271. First support rod; 272. Support block; 273. Moving groove; 274. Second support rod; 28. Third support column; 29. ​​Protective member; 291. Second fixed block; 292. Third spring; 293. Protective plate. DETAILED DESCRIPTION

[0032] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0033] like Figures 1 to 3 As shown, a connector for a mining cable according to an embodiment of the present invention comprises a first base 1, a first elastic member 14 is arranged on the first base 1, a second cable 13 is rotatably mounted inside the first base 1, a second elastic member 15 is arranged at the bottom end of the second cable 13, and a locking device 2 is arranged on the second elastic member 15 and the first elastic member 14;

[0034] like Figures 4 to 6As shown, the locking device 2 is connected to a cable mesh 11, a first cable 12 is placed inside the cable mesh 11, the locking device 2 is used to clamp the outer wall of the first cable 12 and the metal wire inside the first cable 12, the second elastic member 15 and the locking device 2 on the first elastic member 14 are respectively connected to the new and old first cables 12; the locking device 2 includes a first placement box 21, a contraction member 22, a first clamping block 23, a lifting member 24 and a second clamping block 26, the contraction member 22, the first clamping block 23, the lifting member 24 are installed in the On the first placement box 21, the lifting member 24 and the shrinking member 22 are slidably installed with the first placement box 21 respectively, and the first clamping block 23 and the second clamping block 26 are slidably arranged inside the shrinking member 22. The first clamping block 23 and the second clamping block 26 are arranged in a circular array inside the shrinking member 22. The lifting member 24 slides to lift the shrinking member 22, so that the shrinking member 22 rises, driving multiple first clamping blocks 23 to shrink toward the center of the first placement box 21, thereby clamping the outer wall of the first cable 12 and the metal inside the first cable 12.

[0035] It should be noted that, since the new first cable 12 and the old first cable 12 need to be connected during the replacement process by the rope-changing robot, the two first cables 12 need to be replaced, and the tension of the new and old first cables 12 needs to be maintained during the replacement. If the outer wall of the first cable 12 is clamped, the old first cable 12 may be damaged and fall off during the replacement process due to the wear of the outer skin of the old first cable 12, and the new first cable 12 may also fall off and bend during the replacement process. In order to solve this problem, the following improvements have been made;

[0036] A portion of the outer skin of the new first cable 12 (the unused and unworn first cable 12) and the old first cable 12 (the worn first cable 12 after use) is peeled off, and then the metal wires of the two first cables 12 are placed in the clamping position of the second clamping block 26, and the first cable 12 without leaking the metal wire is placed in the position of the first clamping block 23, and then the lifting member 24 is driven by the motor to rotate, and the lifting member 24 moves toward the center position of the first placement box 21, thereby lifting the retracting member 22 to move away from the first base 1, thereby driving the first clamping block 23 and the second clamping block 26 to retract inwardly, and the first clamping block 23 and the second clamping block 26 are provided with protrusions, so that the first clamping block 23 and the first clamping block 26 can be retracted. When the retracting member 22 approaches the direction away from the first base 1, the second clamping block 26 can drive the first clamping block 23 and the second clamping block 26 to clamp the first cable 12, and the first clamping block 23 clamps the outer wall of the first cable 12, and the second clamping block 26 clamps the metal wire on the first cable 12, so as to prevent the problem of pulling and breaking due to insufficient toughness of the outer wall of the new and old first cables 12 when replacing the first cable 12, and the metal wire on the first cable 12 has strong anti-pulling ability, so as to protect the first cable 12 when replacing, improve the safety during replacement, and prevent the new first cable 12 outer skin from being loosely connected to the metal wire due to the twisting and bending force when pulling.

[0037] like Figures 4 to 6 As shown, the locking device 2 includes a third support column 28 fixedly mounted on the first placement box 21, a second clamping block 26 fixedly mounted on the third support column 28, the lifting member 24 is located at the bottom of the shrinking member 22, and the contraction of the lifting member 24 is used to drive the shrinking member 22 to rise and fall, a support member 27 is connected to the first clamping block 23 and the second clamping block 26, a protective member 29 is provided at the bottom of the shrinking member 22, the protective member 29 is used to prevent the metal wire on the first cable 12 from squeezing the lifting member 24, the lifting member 24 is connected to the first transmission member 25, the first transmission member 25 is located inside the first placement box 21, and the first transmission member 25 is used to drive the lifting member 24 to move and lock.

[0038] It should be noted that when the metal wire of the first cable 12 is placed at the position of the second clamp 26 and the outer skin of the first cable 12 is placed at the position of the first clamp 23, the first transmission member 25 can be started to rotate, and the first transmission member 25 is connected to the lifting member 24, thereby driving the lifting member 24 to approach the center position of the first placement box 21, and the second clamp 26 is connected to the support member 27 through the third support column 28, and the outer wall of the third support column 28 is provided with a protective member 29 to prevent the first cable 12 from lifting the lifting member 24 during installation, causing the lifting member 24 to be unable to lift the retracting member 22, thereby improving safety during use.

[0039] like Figures 3 to 5 As shown, the first elastic member 14 includes a plurality of first sliding columns 141 slidably mounted inside the first base 1 , the tops of the plurality of first sliding columns 141 are fixedly mounted to the first placement box 21 , a first spring 142 is fixedly mounted to the bottom of the first placement box 21 , and the first spring 142 is concentric with the first sliding column 141 .

[0040] It should be noted that the first sliding column 141 and the first spring 142 can prevent the first cable 12 from vibrating at a bend when being pulled, thereby preventing the first base 1 and the second cable 13 from being subjected to excessive force, thereby improving the safety of the connection between the first base 1 and the second cable 13.

[0041] like Figures 3 to 5 As shown, the second elastic member 15 includes a second sliding column 151 slidably installed at the bottom of the second cable 13, a second spring 152 is arranged at the bottom of the second cable 13, the second spring 152 is concentric with the second sliding column 151, and a locking device 2 and a cable mesh sleeve 11 are also arranged at the bottom of the second sliding column 151. The locking device 2 and the cable mesh sleeve 11 at the bottom of the second sliding column 151 are symmetrically arranged with the locking device 2 and the cable mesh sleeve 11 at the top of the first sliding column 141.

[0042] It should be noted that the first base 1 and the second cable 13 can prevent the problem of excessive torque generated by the two first cables 12 when the two first cables 12 are pulled, and the first base 1 and the second cable 13 are rotatably installed, thereby improving the safety of the first base 1 and the second cable 13 when in use, and the functions of the second slide column 151 and the second spring 152 are the same as those of the first slide column 141 and the first spring 142.

[0043] like Figures 5 and 6 As shown, the shrinking member 22 includes a limit rod 223 fixedly mounted on the first placement box 21 and symmetrically arranged, a limit protrusion 211 is fixedly mounted on the first placement box 21, the limit protrusion 211 is rotatably connected to the limit rod 223, a fixed plate 222 is slidably mounted on the outer wall of the limit rod 223, a first extrusion block 221 and a second extrusion block 224 are fixedly mounted on the fixed plate 222, a first clamping block 23 and a second clamping block 26 are slidably arranged on the first extrusion block 221 and the second extrusion block 224, the fixed plate 222 rises to drive the first extrusion block 221 and the second extrusion block 224 to rise, so that the first clamping block 23 and the second clamping block 26 move closer to the center of the first placement box 21.

[0044] It should be noted that a third support column 28 is provided on the first placement box 21, and the third support column 28 is connected to the second clamping block 26. The rise of the fixed plate 222 drives the first extrusion block 221 and the second extrusion block 224 to rise. The limiting rod 223 limits the fixed plate 222 when the fixed plate 222 rises, and the first clamping block 23 and the second clamping block 26 are connected by the support member 27. Therefore, when the first extrusion block 221 and the second extrusion block 224 rise, multiple first clamping blocks 23 and second clamping blocks 26 can be brought closer to the center position of the first placement box 21, thereby clamping the first cable 12.

[0045] like Figures 3 to 7 As shown, the lifting member 24 includes a first lifting block 241 and a second lifting block 243 slidably mounted on the first placement box 21, and the first lifting block 241 and the second lifting block 243 are internally threaded with a first threaded rod 242, and the first threaded rod 242 rotates to drive the first lifting block 241 and the second lifting block 243 to move closer to or away from each other.

[0046] It should be noted that the lifting member 24 includes a first lifting block 241 and a second lifting block 243 slidably mounted on the first placement box 21, and the first lifting block 241 and the second lifting block 243 are internally threaded with a first threaded rod 242. Rotating the first threaded rod 242 drives the first lifting block 241 and the second lifting block 243 to move closer to or away from each other. When the first lifting block 241 and the second lifting block 243 approach the center position of the first placement box 21, the second extrusion block 224 is lifted up, driving the fixed plate 222 to move away from the first base 1, so that the first clamping block 23 and the second clamping block 26 clamp the first cable 12. Conversely, when the first lifting block 241 and the second lifting block 243 move away from each other, the first clamping block 23 and the second clamping block 26 release the clamping of the first cable 12.

[0047] like Figures 6 to 8 As shown, the first transmission member 25 includes a first fixed block 252 fixedly mounted on the first placement box 21, a second screw 251 is rotatably mounted inside the first fixed block 252, a first gear 253 is fixedly mounted on the end of the first threaded rod 242 close to the second screw 251, the first gear 253 is meshed with the second screw 251, a second gear 254 is arranged on the second screw 251, a handle 257 is rotatably mounted on the first base 1, a third screw 256 is threadedly mounted inside the handle 257, a rack 255 is fixedly mounted on the top end of the third screw 256, the rack 255 is meshed with the second gear 254, and a hexagonal groove 2511 is arranged on the end of the second screw 251.

[0048] It should be noted that, by connecting the hexagonal wrench with the hexagonal slot 2511, rotating the second screw rod 251 can drive the first gear 253 to rotate, and the first gear 253 is connected to the first threaded rod 242, which can drive the first lifting block 241 and the second lifting block 243 to move closer to and away from each other, and the first fixing block 252 and the first gear 253 are a worm gear structure, which plays a role in locking the first threaded rod 242 to prevent the first cable 12 from loosening during the replacement process, and rotating the handle 257 can raise the third screw rod 256, and the third screw rod 256 slides inside the first base 1, and the third screw rod 256 is raised to drive the rack 255 and the second gear The wheel 254 is meshed, and a ratchet is provided at the connection position between the second gear 254 and the second screw 251, so that the second gear 254 can only drive the second screw 251 to rotate in one direction, thereby driving the first lifting block 241 and the second lifting block 243 to approach each other, clamping the first cable 12, and the third screw 256 is relatively long and can be raised and lowered to a state of complete disengagement from the second gear 254. When the first base 1 and the first placement box 21 are displaced, the first clamping block 23 and the second clamping block 26 can be driven to clamp the first cable 12. After the first cable 12 is replaced, the device can be removed from the first cable 12.

[0049] like Figures 5 and 6 As shown, the support member 27 includes a second support rod 274 fixedly mounted on one of the second clamping blocks 26, a support block 272 is slidably mounted on the second support rod 274, a movable groove 273 and a first support rod 271 are provided on the support block 272, and the first support rod 271 and the second support rod 274 are both engaged with the movable groove 273.

[0050] It should be noted that the first support rod 271, the support block 272 and the second support rod 274 can limit the position of the first clamp block 23 and the second clamp block 26, so that when the fixed plate 222 rises, the first extrusion block 221 and the second extrusion block 224 are driven to rise, so that the first clamp block 23 and the second clamp block 26 are close to each other to clamp the first cable 12, and the movable groove 273 can cause the first clamp block 23 and the second clamp block 26 to produce a certain displacement, thereby improving the stability of clamping.

[0051] like Figures 5 and 6 As shown, the protection member 29 includes a second fixing block 291 fixedly mounted on the outer wall of the third support column 28 , a third spring 292 is fixedly mounted on the second fixing block 291 , and a protection plate 293 is fixedly mounted on the end of the third spring 292 .

[0052] It should be noted that the second fixing block 291, the third spring 292 and the protective plate 293 can resist the metal wire on the first cable 12 to prevent the metal wire on the first cable 12 from squeezing the lifting member 24 and causing the lifting member 24 to be unusable.

[0053] A method for connecting a mining cable line, the method using the above-mentioned cable line connector, comprising the following steps:

[0054] Step 1: peel off the ends of the new first cable 12 and the old first cable 12, then peel off the metal wires inside the two first cables 12, and then abut the two first cables 12 against the protective members 29 inside the two locking devices 2, thereby completing the alignment of the first cables 12;

[0055] Step 2, rotate the second screw rod 251, the second screw rod 251 drives the first gear 253 to rotate, the first gear 253 drives the first threaded rod 242 to rotate, the first threaded rod 242 drives the first lifting block 241 and the second lifting block 243 to approach the center of the first placement box 21, thereby lifting the second extrusion block 224, the second extrusion block 224 drives the first extrusion block 221 to rise, drives the second clamping block 26 to clamp the metal wire on the first cable 12, and the first clamping block 23 clamps the outer wall of the first cable 12, thereby completing the clamping work, and preventing the first cable 12 from being damaged when being pulled;

[0056] Step three, rotate the handle 257, the handle 257 rises and engages with the second gear 254, the first base 1 and the second cable 13 are provided with a first elastic member 14 and a second elastic member 15, when the first base 1 and the first placement box 21 approach or move away from each other, the handle 257 is driven to engage with the second gear 254, and the second clamping block 26 and the first clamping block 23 clamp the first cable 12 until the rope changing work is completed.

[0057] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A connector for a mining cable, comprising a first base (1), characterized in that: The first base (1) is provided with a first elastic member (14), a second cable (13) is rotatably mounted inside the first base (1), a second elastic member (15) is provided at the bottom end of the second cable (13), a locking device (2) is provided on the second elastic member (15) and the first elastic member (14), a cable mesh (11) is connected to the locking device (2), a first cable (12) is placed inside the cable mesh (11), the locking device (2) is used to clamp the outer wall of the first cable (12) and the metal wire inside the first cable (12), and the locking devices (2) on the second elastic member (15) and the first elastic member (14) are respectively connected to the new and old first cables (12); The locking device (2) comprises a first placement box (21), a contraction piece (22), a first clamping block (23), a lifting piece (24) and a second clamping block (26); the contraction piece (22), the first clamping block (23) and the lifting piece (24) are mounted on the first placement box (21); the lifting piece (24) and the contraction piece (22) are slidably mounted on the first placement box (21) respectively; the contraction piece (22) is slidably provided with a first clamping block (23) and a second clamping block (26); the first clamping block (23) and the second clamping block (26) are arranged in a circular array inside the contraction piece (22); the lifting piece (24) slides to lift the contraction piece (22) so that the contraction piece (22) rises, driving the plurality of first clamping blocks (23) to shrink toward the center of the first placement box (21), thereby locking the outer wall of the first cable (12) and the first cable ( 12) internal metal clamping; the locking device (2) includes a third support column (28) fixedly mounted on the first placement box (21), a second clamping block (26) fixedly mounted on the third support column (28), the lifting member (24) is located at the bottom of the contraction member (22), the lifting member (24) contracts to drive the contraction member (22) to rise and fall, the first clamping block (23) and the second clamping block (26) are connected to a support member (27), a protective member (29) is provided at the bottom of the contraction member (22), the protective member (29) is used to prevent the metal wire on the first cable (12) from squeezing the lifting member (24), the lifting member (24) is connected to a first transmission member (25), the first transmission member (25) is located inside the first placement box (21), and the first transmission member (25) is used to drive the lifting member (24) to move and lock.

2. The connector for a mining cable according to claim 1, characterized in that: The first elastic member (14) comprises a plurality of first sliding columns (141) slidably mounted inside the first base (1); the tops of the plurality of first sliding columns (141) are fixedly mounted on the first placement box (21); a first spring (142) is fixedly mounted on the bottom of the first placement box (21); the first spring (142) is concentric with the first sliding column (141).

3. The connector for a mining cable according to claim 2, characterized in that: The second elastic member (15) comprises a second sliding column (151) slidably mounted at the bottom of the second cable (13); a second spring (152) is arranged at the bottom of the second cable (13); the second spring (152) is concentric with the second sliding column (151); a locking device (2) and a cable mesh sleeve (11) are also arranged at the bottom of the second sliding column (151); the locking device (2) and the cable mesh sleeve (11) at the bottom of the second sliding column (151) are symmetrically arranged with the locking device (2) and the cable mesh sleeve (11) at the top of the first sliding column (141).

4. The connector for a mining cable according to claim 3, characterized in that: The shrinking member (22) comprises a limit rod (223) fixedly mounted on the first placement box (21) and symmetrically arranged thereon; a limit protrusion (211) is fixedly mounted on the first placement box (21); the limit protrusion (211) is rotatably connected to the limit rod (223); a fixed plate (222) is slidably mounted on the outer wall of the limit rod (223); a first extrusion block (221) and a second extrusion block (224) are fixedly mounted on the fixed plate (222); and a first clamping block (23) and a second clamping block (26) are slidably mounted on the first extrusion block (221) and the second extrusion block (224).

5. The connector for a mining cable according to claim 4, characterized in that: The lifting member (24) comprises a first lifting block (241) and a second lifting block (243) which are slidably mounted on the first placement box (21); the first lifting block (241) and the second lifting block (243) are internally threadedly mounted with a first threaded rod (242); the first threaded rod (242) rotates to drive the first lifting block (241) and the second lifting block (243) to move closer to or farther from each other.

6. A connector for a mining cable according to claim 5, characterized in that: The first transmission member (25) comprises a first fixed block (252) fixedly mounted on the first placement box (21); a second screw rod (251) is rotatably mounted inside the first fixed block (252); a first gear (253) is fixedly mounted on the end of the first threaded rod (242) close to the second screw rod (251); the first gear (253) is meshed with the second screw rod (251); a second gear (254) is arranged on the second screw rod (251); a handle (257) is rotatably mounted on the first base (1); a third screw rod (256) is threadedly mounted inside the handle (257); a rack (255) is fixedly mounted on the top end of the third screw rod (256); the rack (255) is meshed with the second gear (254); a hexagonal groove (2511) is arranged on the end of the second screw rod (251).

7. The connector for a mining cable according to claim 6, characterized in that: The support member (27) comprises a second support rod (274) fixedly mounted on one of the second clamping blocks (26); a support block (272) is slidably mounted on the second support rod (274); a movable groove (273) and a first support rod (271) are provided on the support block (272); the first support rod (271) and the second support rod (274) are both engaged with the movable groove (273).

8. The connector for a mining cable according to claim 7, characterized in that: The protective member (29) comprises a second fixing block (291) fixedly mounted on the outer wall of the third support column (28), a third spring (292) being fixedly mounted on the second fixing block (291), and a protective plate (293) being fixedly mounted on the end of the third spring (292).

9. A method for connecting a connector for a mining cable as claimed in claim 8, characterized in that: The following steps are involved: Step 1: peeling off the ends of the new first cable (12) and the old first cable (12), then peeling off the metal wires inside the two first cables (12), and then abutting the two first cables (12) against the protective members (29) inside the two locking devices (2), thereby completing the alignment of the first cables (12); Step 2: Rotate the second screw rod (251); the second screw rod (251) drives the first gear (253) to rotate; the first gear (253) drives the first threaded rod (242) to rotate; the first threaded rod (242) drives the first lifting block (241) and the second lifting block (243) to approach the center of the first placement box (21), thereby lifting the second extrusion block (224); the second extrusion block (224) drives the first extrusion block (221) to rise, and drives the second clamping block (26) to clamp the metal wire on the first cable (12); the first clamping block (23) clamps the outer wall of the first cable (12), thereby completing the clamping work and preventing the first cable (12) from being damaged when being pulled. Step 3: Rotate the handle (257), the handle (257) rises and meshes with the second gear (254), the first base (1) and the second cable (13) are provided with a first elastic member (14) and a second elastic member (15), when the first base (1) and the first placement box (21) approach or move away from each other, the handle (257) is driven to mesh with the second gear (254), and the second clamping block (26) and the first clamping block (23) clamp the first cable (12) until the cable replacement work is completed.

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