A cable installation docking aid

Abstract

The application relates to the field of cable connection installation, and discloses a cable installation butt joint auxiliary device which comprises a base, a first telescopic rod fixedly installed on the side of the base, symmetrically arranged first threaded rotating rods screwedly installed in the base, clamping blocks fixedly installed at the ends of the first threaded rotating rods, the base being symmetrically installed at the two ends of the first telescopic rod, and a cutting device fixedly installed on the outer wall of the first telescopic rod. The cutting depth of the cable insulation layer can be adjusted through the rotation of the transmission piece and the cutting feeding piece in the cutting device, so that accurate cutting is guaranteed, the problem that the worker's hand-held blade is damaged and the blade cuts the cable insulation layer too deeply is prevented, the safety of the cable butt joint is improved, the problem that the cable is cut too deeply and the cable is disconnected when being stretched is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable connection installation, more particularly, it relates to a cable installation butt joint auxiliary device. BACKGROUND

[0002] Cable butt joint installation refers to the process of reliably connecting the conductors of two cables through professional connection technology to ensure electrical conduction and mechanical strength. It mainly includes conductor stripping, connection (crimping / welding), insulation recovery and other steps, and requires the use of special tools and materials (such as wiring terminals, heat shrink tubes). This process is widely used in power, communication and other systems, requiring firm connection, low resistance and corrosion and waterproof performance, and is a key link in cable line construction.

[0003] A patent application with publication number CN119813031A discloses a terminal butt joint auxiliary device for power cable laying, which comprises two cable fixing cylinders, a rotary motor and a bottom plate. The bottom plate is fixedly connected with a side plate and a fixed table at the upper end. The side plate is located at the right side of the fixed table. The side plate is fixedly connected with a transmission structure at the rear side. The outer surface of the rear cable fixing cylinder is fixedly connected with a gear structure. The output shaft of the rotary motor penetrates into the transmission structure and drives the transmission structure to rotate. The transmission structure is in contact with the gear structure to drive the rear cable fixing cylinder to rotate. The rear cable fixing cylinder is placed on the fixed table. A moving hole is formed in the front side of the side plate. A moving device is fixedly connected with a connecting assembly through the moving hole. The connecting assembly is fixedly connected with the front cable fixing cylinder. It can adapt to cables of different diameters and types to meet more extensive construction needs and is suitable for various engineering environments, saving equipment costs.

[0004] Although the above-mentioned device can connect cables of different diameters during use, the cable needs to be cut during butt joint. When cutting and stripping many cables, a blade is generally used for cutting. However, the blade is relatively sharp and easy to deform. When cutting, the worker is easily injured, and the cutting depth cannot be accurately controlled, resulting in deep cutting force, damage to the internal wire skin that does not need to be cut, and easy breakage of the cable during pulling. SUMMARY

[0005] The present application provides a cable installation butt joint auxiliary device, which solves the technical problem that in the related art, the cable needs to be cut during butt joint. When cutting and stripping many cables, a blade is generally used for cutting. However, the blade is relatively sharp and easy to deform. When cutting, the worker is easily injured, and the cutting depth cannot be accurately controlled, resulting in deep cutting force, damage to the internal wire skin that does not need to be cut, and easy breakage of the cable during pulling.

[0006] The application provides a cable installation butt joint auxiliary device, which comprises a base, a first telescopic rod is fixedly installed on the side of the base, first threaded rotating rods are symmetrically installed in the base in a threaded mode, clamping blocks are fixedly installed at the ends of the first threaded rotating rods, the base is symmetrically installed at the two ends of the first telescopic rod, a cutting device is fixedly installed on the outer wall of the first telescopic rod, the clamping blocks are used for clamping the cable when they are close to each other, and the cutting device is used for cutting the cable.

[0007] As a further optimization scheme of the application, the cutting device comprises first sliding grooves which are symmetrically installed on the first connecting block, a plurality of first teeth are fixedly installed on the inner wall of the first connecting block, the first teeth are engaged with the transmission member, detection members and opening members are arranged on the side of the cutting member, the detection members are used for detecting the cutting degree of the cable insulation layer, and the opening members are used for opening the cut of the cable when the cutting member cuts.

[0008] As a further optimization scheme of the application, the transmission member comprises a limiting sliding block which is slidingly installed on the inner wall of the first sliding groove, a limiting connecting rod is fixedly installed in the limiting sliding block, a power gear is rotatably installed at the bottom of the limiting connecting rod, and a limiting connecting block is rotatably installed at the end of the power gear.

[0009] As a further optimization scheme of the application, the cutting feed member is fixedly installed on a first fixed block at the bottom of the limiting connecting block, a fourth gear is rotatably installed at the top of the first fixed block, a circular ring column is fixedly installed in the first fixed block, a second sliding rod is screwedly installed in the circular ring column, a rotating sliding groove is arranged at the top of the fourth gear, a first sliding rod is slidingly installed in the rotating sliding groove, a second fixed block is fixedly installed at the top of the first fixed block, a worm gear is rotatably installed in the second fixed block, a third gear is fixedly installed at the end of the worm gear, a bottom gear is rotatably installed at the top of the first fixed block, an extension rotating rod is fixedly installed at the top of the bottom gear, the extension rotating rod is in contact with the top protruding block, and the extension rotating rod is used for driving the bottom gear to rotate when the extension rotating rod is extended or retracted.

[0010] As a further optimization scheme of the present application, the cutting member comprises a bottom fixed block fixedly installed at the bottom of the second sliding rod, and a cutting knife is rotatably installed at the center of the bottom of the bottom fixed block.

[0011] As a further optimization scheme of the present application, the detection member comprises a detection installation plate fixedly installed at the side of the bottom fixed block, and a detection extension rod is rotatably installed at the inside of the detection installation plate.

[0012] As a further optimization scheme of the present application, the opening member comprises a fourth telescopic rod fixedly installed at the outside of the detection installation plate, and an opening fixed block is fixedly installed at the bottom of the fourth telescopic rod.

[0013] As a further optimization scheme of the present application, the telescopic member comprises a power extension rod slidingly installed at the inside of the opening roller, and a fifth fixed block is fixedly installed at the end of the power extension rod.

[0014] As a further optimization scheme of the present application, the minimum distance between the two power extension rods is smaller than the thickness of the cutting knife, and the maximum distance between the two power extension rods is greater than the thickness of the cutting knife.

[0015] As a further optimization scheme of the present application, the cutting knife has a gradually thickening shape, and the thickness of the opening fixed block close to the opening roller is greater than the thickness of the opening fixed block away from the opening roller.

[0016] The present application has the following beneficial effects:

[0017] The cable installation butt joint auxiliary device disclosed by the application can adjust the cutting depth of the cable insulation layer through the rotation of the transmission part and the cutting feeding part inside the cutting device, thereby ensuring accurate cutting, preventing the worker from being damaged by holding the blade and the problem of the blade cutting the cable insulation layer too deep, improving the safety of the cable butt joint, preventing the cable from being cut too deep, and causing the cable to break when stretched. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall device appearance schematic diagram of the application;

[0019] Figure 2 is the overall device installation schematic diagram of the application;

[0020] Figure 3 is the internal structure schematic diagram of the cutting device of the application;

[0021] Figure 4 is the internal structure schematic diagram of the transmission part of the application;

[0022] Figure 5 is the internal structure schematic diagram of the detection part of the application;

[0023] Figure 6 is the internal structure schematic diagram of the opening part of the application;

[0024] Figure 7 is Figure 6 is the enlarged view of A in the figure.

[0025] in the figure:

[0026] 1, base; 11, first threaded rotating rod; 12, clamping block; 13, first telescopic rod;

[0027] 2, cutting device; 21, first connecting block; 211, first sliding slot; 212, first tooth; 22, top protruding block; 23, cutting feeding piece; 231, first fixed block; 232, bottom gear; 233, telescopic rotating rod; 234, second fixed block; 235, worm gear; 236, third gear; 237, fourth gear; 238, rotating sliding slot; 239, first sliding rod; 2391, second sliding rod; 24, cutting piece; 241, bottom fixed block; 242, cutting knife; 25, transmission piece; 251, limiting sliding block; 252, limiting connecting rod; 253, power gear; 254, limiting connecting block; 26, detection piece; 261, detection mounting plate; 262, detection extension rod; 263, detection roller; 264, friction slot; 27, opening piece; 271, fourth telescopic rod; 272, opening fixed block; 273, opening roller; 274, telescopic piece; 2741, power extension rod; 2742, fifth fixed block; 2743, second rotating rod; 2744, third rotating rod; 275, lifting slot; 276, lifting limiting round block; 277, first spring; 278, lifting rod; 279, extrusion block. DETAILED DESCRIPTION

[0028] The subject matter described herein will now be discussed with reference to example implementations. It should be appreciated that these implementations are discussed only to better illustrate the subject matter described herein and to enable one of ordinary skill in the art to better understand the subject matter described herein. Changes to the function and arrangement of the elements discussed can be made without departing from the scope of the subject matter described in this specification. Various examples can omit, substitute, or add various procedures or components as appropriate. Also, features described with respect to some examples can be combined in other examples.

[0029] As Figures 1 to 3As shown, the cable installation butt joint auxiliary device comprises a base 1, a first telescopic rod 13 is fixedly installed on the side of the base 1, a first threaded rotating rod 11 is screwedly installed in the base 1, a clamping block 12 is fixedly installed at the end of the first threaded rotating rod 11, the base 1 is symmetrically installed at the two ends of the first telescopic rod 13, a cutting device 2 is fixedly installed on the outer wall of the first telescopic rod 13, the clamping blocks 12 are used for clamping the cable by approaching each other, and the cutting device 2 is used for cutting the cable.

[0030] It should be noted that when the cable is butt jointed in the end, the cable insulation layer needs to be cut, so that the metals of the two cables are butt jointed, and meanwhile the insulation and sealing need to be maintained. At present, when workers construct the cable, they hold a cutter to cut and open the cable. This case not only easily cuts the protective layer of the inner metal outer wall, but also easily scratches the hands of the workers. In order to solve this problem, the following improvements are made.

[0031] When the insulating layer of the cable needs to be cut, the first threaded rotating rod 11 can be manually rotated, and then the two clamping blocks 12 are opened, so that the cable can pass through the inside of the two bases 1 and be clamped by the clamping blocks 12, the inside of the base 1 is provided with a rack and a gear, so that the two clamping blocks 12 are close to or away from each other, the clamping block 12 keeps the same center as the base 1, the position of the base 1 and the cutting device 2 is adjusted, so that the cutting part 24 on the cutting device 2 corresponds to the cutting position, the position of the cutting part 24 is adjusted, so that the cutting part 24 can cut the insulating layer of the cable, and the cutting depth is less than the thickness of the cable insulating layer, the transmission part 25 includes a limiting sliding block 251 slidingly installed in the inner wall of the first sliding groove 211, the inside of the limiting sliding block 251 is fixedly installed with a limiting connecting rod 252, the bottom of the limiting connecting rod 252 is rotatably installed with a power gear 253, a motor is arranged on the side of the limiting connecting rod 252 away from the cutting feeding part 23, the output shaft of the motor is fixedly connected with the power gear 253, when the motor rotates, the power gear 253 can be driven to rotate, then the transmission part 25 is driven to rotate by the motor, so that the transmission part 25 rotates around the inner wall of the first connecting block 21, and the transmission part 25 can limit the direction of the cutting feeding part 23 at the same time, so that the cutting feeding part 23 always keeps the center position of the first connecting block 21 during rotation, and when the transmission part 25 rotates around the first connecting block 21 as the center for one circle, the state is as shown in Figure 3 , the top protruding block 22 can press the cutting feeding part 23, so as to drive the cutting feeding part 23 and the cutting part 24 to descend, the cutting depth of the cable insulating layer can be adjusted, so as to ensure accurate cutting, prevent workers from being damaged by holding the blade, and prevent the blade from cutting the cable insulating layer too deeply, improve the safety of cable butt joint, prevent the cable from being cut too deeply and causing the cable to break during stretching, until the cutting is completed, the cable can be taken out by rotating the first threaded rotating rod 11, then rotating the cutting feeding part 23 can reset the cutting part 24, so that the next round of cable cutting can be performed.

[0032] As shown in Figures 3 to 4 , the cutting device 2 includes a first sliding groove 211 symmetrically installed on the first connecting block 21, a plurality of first teeth 212 are fixedly installed on the inner wall of the first connecting block 21, the first teeth 212 are engaged with the transmission part 25, the side of the cutting part 24 is provided with a detection part 26 and a spreading part 27, the detection part 26 is used for detecting the cutting degree of the cable insulating layer, and the spreading part 27 is used for spreading the cut of the cable when the cutting part 24 cuts.

[0033] Need to explain, the transmission 25 sliding in the first slot 211 inside, while the transmission 25 and the first tooth 212 meshing, so with motor drive transmission 25 rotation, can drive transmission 25 rotation as a whole around the first connecting block 21 as the center, thereby on the cable insulation layer continues to cut the role of cutting element 24 side fixed installation detection element 26 and open element 27, when cutting knife 242 rotation after cutting the cable insulation layer, then through the detection element 26 on the cable insulation layer friction degree detection, through the change of friction to determine whether the cable insulation layer cutting is completed, and open element 27 can make the cable insulation layer after cutting connection place open, reduce the cutting difficulty of cutting element 24, at the same time makes the detection element 26 can be in contact with the cable cutting, through the detection element 26 rotation angle and speed to determine whether the cable cutting is completed.

[0034] As shown in Figures 3 to 4 The transmission 25 includes slidingly installed in the first slot 211 inner wall limit slide block 251, the limit slide block 251 is fixedly installed in the inside limit connecting rod 252, the limit connecting rod 252 is rotatably installed at the bottom of the power gear 253, the end of the power gear 253 is rotatably installed in the limit connecting block 254.

[0035] Need to explain, limit slide block 251 and limit connecting rod 252 and power gear 253 make the limit connecting block 254 in the direction of the center of the first connecting block 21, and the transmission 25 and the first tooth 212 meshing, when the motor drive power gear 253 rotation, can make the power gear 253 rotation around the inner wall of the first connecting block 21, thereby cutting the insulation layer of the cable.

[0036] As shown in Figure 4 The cutting feed 23 is fixedly installed in the first fixed block 231 at the bottom of the limit connecting block 254, the fourth gear 237 is rotatably installed at the top of the first fixed block 231, the first fixed block 231 is fixedly installed with a circular column in the inside, the second slide rod 2391 is screwedly installed in the inside of the circular column, the rotating slot 238 is provided at the top of the fourth gear 237, the first slide rod 239 is slidably installed in the inside of the rotating slot 238, the second fixed block 234 is fixedly installed at the top of the first fixed block 231, the worm gear 235 is rotatably installed in the inside of the second fixed block 234, the third gear 236 is fixedly installed at the end of the worm gear 235, the bottom gear 232 is rotatably installed at the top of the first fixed block 231, the telescopic rotary rod 233 is fixedly installed at the top of the bottom gear 232, the telescopic rotary rod 233 is in contact with the top protruding block 22, the telescopic rotary rod 233 is telescopic to drive the bottom gear 232 rotation.

[0037] It should be noted that, whenever the first fixed block 231 rotates around the first connecting block 21 one circle, the telescopic rotating rod 233 is in contact with the top protruding block 22 once, which can drive the telescopic rotating rod 233 to descend, and the telescopic rotating rod 233 is internally provided with a transmission structure, so that when the telescopic rotating rod 233 descends, the bottom gear 232 can be driven to rotate, and the bottom gear 232 is engaged with the third gear 236, so that when the telescopic rotating rod 233 descends, the worm gear 235 is driven to rotate, and the worm gear 235 is engaged with the fourth gear 237, so that the fourth gear 237 is driven to rotate, and thus the first sliding rod 239 is driven to rotate, so that the first sliding rod 239 ascends and descends in the inside of the circular column, so that the cutting piece 24 cuts the insulating layer of the cable, and every time the telescopic rotating rod 233 is extruded and telescoped by the top protruding block 22, the second sliding rod 2391 descends by a distance, thereby cutting the insulating layer of the cable.

[0038] As shown in Figure 4 , the cutting piece 24 comprises a bottom fixed block 241 fixedly installed at the bottom of the second sliding rod 2391, and a cutting knife 242 rotatably installed at the bottom center of the bottom fixed block 241.

[0039] It should be noted that the second sliding rod 2391 is fixedly installed with the bottom fixed block 241, and the bottom center of the bottom fixed block 241 is rotatably installed with the cutting knife 242, so that the cutting direction of the cutting knife 242 is the direction of the movement of the second sliding rod 2391, thereby cutting and opening the insulating layer of the cable.

[0040] As shown in Figures 4 to 5 , the detection piece 26 comprises detection mounting plates 261 fixedly installed on the side of the bottom fixed block 241 and symmetrically arranged, a detection extension rod 262 rotatably installed in the inside of the detection mounting plate 261, a torsional spring arranged between the detection extension rod 262 and the inside of the detection mounting plate 261, a detection roller 263 rotatably installed at the end of the detection extension rod 262, a friction groove 264 arranged outside the detection roller 263, and a friction force existing between the detection roller 263 and the detection extension rod 262.

[0041] It should be noted that when the cutting knife 242 cuts the insulating layer of the cable, the detection roller 263 can rotate in the cutting groove, and the friction groove 264 is in contact with the cutting groove, thereby increasing the friction force, and the connection position of the detection roller 263 and the detection extension rod 262 is also provided with a friction force, so that the rotation speed of the detection roller 263 can be judged by the change of the friction force of the detection roller 263 and the cable insulating layer, thereby improving the cutting precision.

[0042] As shown in Figures 5 to 7As shown, the opening member 27 comprises a fourth telescopic rod 271 fixedly installed outside the detection mounting plate 261, the bottom of the fourth telescopic rod 271 is fixedly installed with an opening fixed block 272, the inside of the opening fixed block 272 is rotatably installed with an opening roller 273, the inside of the opening roller 273 is hollow, the opening roller 273 is symmetrically provided with a lifting groove 275, the inner wall of the lifting groove 275 is fixedly installed with a first spring 277, the top end of the first spring 277 is fixedly installed with a lifting limiting circular block 276, the lifting limiting circular block 276 is fixedly connected with the opening fixed block 272, the inside of the lifting limiting circular block 276 is rotatably installed with a lifting rod 278, the outer wall of the lifting rod 278 is fixedly installed with a pressing block 279, the inside of the opening roller 273 is provided with a circumferential array of telescopic members 274, and the pressing block 279 is rotated to drive the telescopic members 274 to stretch or retract.

[0043] It should be noted that in the normal state, the opening member 27 is in the state as shown in Figure 6 When the cutting knife 242 cuts the cable insulation layer, the fourth telescopic rod 271 can be started, the fourth telescopic rod 271 drives the opening fixed block 272 to descend, thereby driving the opening roller 273 to descend, and the opening roller 273 descending causes the first spring 277 to be pressed, so that the pressing block 279 presses the telescopic members 274, and the pressing block 279 is located at the bottom of the opening roller 273, when the telescopic members 274 pass through the pressing block 279, the opening after cutting is expanded, thereby facilitating the cutting of the cutting knife 242 and the detection of the detection roller 263.

[0044] As shown in Figures 6 to 7 The telescopic member 274 comprises a power extension rod 2741 symmetrically provided and slidingly installed in the inside of the opening roller 273, the end of the power extension rod 2741 is fixedly installed with a fifth fixed block 2742, the fifth fixed block 2742 is rotatably installed with a second rotating rod 2743, and the end of the second rotating rod 2743 is rotatably installed with a third rotating rod 2744.

[0045] It should be noted that the bottom of the pressing block 279 is in contact with the end of the fifth fixed block 2742 and the second rotating rod 2743, so that the two power extension rods 2741 are away from each other, and the opening after cutting of the cutting knife 242 is expanded, thereby facilitating the continuous cutting of the cutting knife 242.

[0046] As shown in Figures 5 to 6 The minimum distance between the two power extension rods 2741 is less than the thickness of the cutting knife 242, and the maximum distance between the two power extension rods 2741 is greater than the thickness of the cutting knife 242.

[0047] It should be noted that the minimum distance of the two power extension rods 2741 is less than the thickness of the cutting knife 242, and the maximum distance of the two power extension rods 2741 is greater than the thickness of the cutting knife 242, so that when the opening roller 273 is lowered, the bottom of the opening roller 273 can be engaged with the cut of the cable insulation layer.

[0048] As shown in Figure 5 The cutting knife 242 is gradually thickened, and the thickness of the opening fixed block 272 close to the opening roller 273 is greater than the thickness of the opening fixed block 272 away from the opening roller 273.

[0049] It should be noted that the cutting knife 242 is gradually thickened, and the thickness of the opening fixed block 272 close to the opening roller 273 is greater than the thickness of the opening fixed block 272 away from the opening roller 273, and when the opening roller 273 is lowered, the opening roller 273 can be engaged with the cut on the cable insulation layer.

[0050] The above describes the embodiments of the present application, but the embodiments of the present application are not limited to the above specific embodiments, and the above specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the embodiments, which all belong to the protection of the present application.

Claims

1. A cable installation butt-joint aid device comprising a base (1), characterised in that: The side of the base (1) is fixedly provided with a first telescopic rod (13), the inside of the base (1) is screwedly provided with symmetrically arranged first screw rotating rods (11), the end of the first screw rotating rod (11) is fixedly provided with a clamping block (12), the base (1) is symmetrically arranged at the two ends of the first telescopic rod (13), the outer wall of the first telescopic rod (13) is fixedly provided with a cutting device (2), the clamping blocks (12) are close to each other for clamping the cable, and the cutting device (2) is used for cutting the cable; The cutting device (2) comprises a first connecting block (21), a top protruding block (22), a cutting feeding piece (23), a cutting piece (24) and a transmission piece (25), the transmission piece (25) is slidably connected to the outside of the first connecting block (21), the top of the first connecting block (21) is fixedly provided with the top protruding block (22), the lower part of the transmission piece (25) is fixedly provided with the cutting feeding piece (23), the bottom of the cutting feeding piece (23) is slidably provided with the cutting piece (24), the transmission piece (25) slides on the outside of the first connecting block (21) to cut the cable once, the transmission piece (25) moves to drive the cutting feeding piece (23) and the cutting piece (24) to descend, the depth of the cable insulation layer is cut, the first connecting block (21) is symmetrically arranged, a first sliding groove (211) is arranged on the inner wall of the first connecting block (21), a plurality of first teeth (212) are fixedly arranged on the inner wall of the first connecting block (21), the first teeth (212) are meshed with the transmission piece (25), the side of the cutting piece (24) is provided with a detection piece (26) and a spreading piece (27), the detection piece (26) is used for detecting the cutting degree of the cable insulation layer, and the spreading piece (27) is used for spreading the cut of the cable when the cutting piece (24) cuts; The transmission piece (25) comprises a limiting sliding block (251) slidably arranged on the inner wall of the first sliding groove (211), a limiting connecting rod (252) is fixedly arranged in the limiting sliding block (251), a power gear (253) is rotatably arranged at the bottom of the limiting connecting rod (252), and a limiting connecting block (254) is rotatably arranged at the end of the power gear (253); The cutting feeding piece (23) is fixedly arranged on a first fixed block (231) at the bottom of the limiting connecting block (254), a fourth gear (237) is rotatably arranged at the top of the first fixed block (231), a circular column is fixedly arranged in the first fixed block (231), a second sliding rod (2391) is screwedly arranged in the circular column, the cutting piece (24) comprises a bottom fixed block (241) fixedly arranged at the bottom of the second sliding rod (2391), The detection member (26) comprises a detection mounting plate (261) fixedly mounted on a symmetrical side of a bottom fixed block (241); a detection extension rod (262) is rotatably mounted inside the detection mounting plate (261); a torsion spring is provided inside the detection extension rod (262) and the detection mounting plate (261); a detection roller (263) is rotatably mounted on the end of the detection extension rod (262); a friction groove (264) is provided outside the detection roller (263); and friction exists between the detection roller (263) and the detection extension rod (262).

2. A cable installation buttressing device according to claim 1, characterised in that: A rotating slot (238) is provided on the top of the fourth gear (237), a first slide rod (239) is slidably installed inside the rotating slot (238), a second fixed block (234) is fixedly installed on the top of the first fixed block (231), a worm gear (235) is rotatably installed inside the second fixed block (234), a third gear (236) is fixedly installed on the end of the worm gear (235), a bottom gear (232) is rotatably installed on the top of the first fixed block (231), a telescopic rotating rod (233) is fixedly installed on the top of the bottom gear (232), the top of the telescopic rotating rod (233) contacts the top protruding block (22), and the telescopic rotating rod (233) drives the bottom gear (232) to rotate when it is extended or retracted.

3. A cable installation buttressing device according to claim 2, wherein: A cutting knife (242) is rotatably mounted at the bottom center of the bottom fixing block (241).

4. A cable installation buttressing device according to claim 3, wherein: The opening member (27) includes a fourth telescopic rod (271) fixedly mounted on the outside of the detection mounting plate (261), an opening fixed block (272) is fixedly mounted on the bottom of the fourth telescopic rod (271), an opening roller (273) is rotatably mounted inside the opening fixed block (272), the opening roller (273) is hollow inside, and a lifting groove (275) is symmetrically arranged on the opening roller (273), and a first spring (277) is fixedly mounted on the inner wall of the lifting groove (275). A lifting limit block (276) is fixedly installed on the top of a spring (277), and the lifting limit block (276) is fixedly connected to the opening fixed block (272). A lifting rod (278) is rotatably installed inside the lifting limit block (276), and an extrusion block (279) is fixedly installed on the outer wall of the lifting rod (278). A circular array of telescopic parts (274) is provided inside the opening roller (273), and the extrusion block (279) rotates to drive the telescopic parts (274) to extend and retract.

5. A cable installation buttressing device according to claim 4, wherein: The telescopic member (274) comprises a power extension rod (2741) slidably mounted and symmetrically arranged inside the opening roller (273); a fifth fixed block (2742) is fixedly mounted on the end of the power extension rod (2741); a second rotating rod (2743) is rotatably mounted on the fifth fixed block (2742); and a third rotating rod (2744) is rotatably mounted on the end of the second rotating rod (2743).

6. A cable installation buttressing device according to claim 5, wherein: The minimum distance between the two power extension rods (2741) is less than the thickness of the cutting knife (242), and the maximum distance between the two power extension rods (2741) is greater than the thickness of the cutting knife (242).

7. A cable installation buttressing device according to claim 6, wherein: The cutting knife (242) is gradually thickened in shape, and the thickness of the opening fixed block (272) close to the opening roller (273) is greater than the thickness away from the opening roller (273).

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