Cable core breakage detection device

Abstract

The invention discloses a cable broken core detection device, which comprises a detector, and the back surface of the detector is connected with a connecting piece with a U-shaped cross section; a detection probe in signal connection with the detector is arranged in the middle section in the connecting piece, a walking assembly used for moving along the cable is arranged at one end in the connecting piece, and a driving assembly used for driving the walking assembly is arranged at the bottom of the connecting piece; a cleaning assembly used for cleaning the surface of the cable is arranged at the other end in the connecting piece and comprises a sweeping mechanism used for cleaning the circumferential surface of the cable. The grinding mechanism is used for cleaning the axial surface of the cable, the grinding mechanism passively moves when the connecting piece moves along the cable, and a transmission mechanism is arranged between the sweeping mechanism and the grinding mechanism and used for driving the sweeping mechanism to move through movement of the grinding mechanism; and the cleaning assembly is matched with the detection probe, so that cable surface cleaning and broken core detection can be performed simultaneously, and the working efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and particularly to a cable core break detection device. Background Art

[0002] During the use of a cable, it is inevitable that the core break phenomenon occurs. The core break phenomenon refers to the partial fracture of the wire core inside the cable, which will affect the transmission performance of the cable. For a laid cable, when the core break phenomenon occurs, it is usually necessary to first find the core break position, then cut the cable at the core break position, and then replace it with a new cable section for repair. Therefore, how to quickly determine the core break position of the cable is the key to quickly solving the cable core break problem.

[0003] Traditional core break detection methods usually rely on electrical signals, such as resistance, induced voltage, etc. However, if there are contaminants such as dirt, oxide layer, and oil stain on the cable surface, the contact between the detection probe and the cable may be poor, resulting in signal distortion, and then problems such as misjudgment and missed judgment may occur. To improve the detection accuracy, it is often necessary to manually clean the cable surface before detection. However, manual cleaning is not only time-consuming and laborious, but also increases the complexity of the detection process. Especially in long-distance or complex environments, the efficiency is low and it is difficult to ensure consistency.

[0004] Therefore, we propose a cable core break detection device. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a cable core break detection device. The cleaning component cooperates with the detection probe, enabling the cable surface cleaning and core break detection to be carried out simultaneously, avoiding the step-by-step operation of cleaning first and then detecting in the traditional method, significantly improving the working efficiency. Especially in long cables or complex environments, it reduces human intervention and repetitive labor. The cleaning component automatically cleans the cable surface, improving the detection accuracy.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A cable core break detection device includes a detector, and a connecting member with a "C"-shaped cross-section is connected to the back of the detector; A detection probe signal-connected to the detector is arranged in the middle section inside the connecting member, a traveling component for moving along the cable is arranged at one end inside the connecting member, and a driving component for driving the traveling component is arranged at the bottom of the connecting member; A cleaning component for cleaning the cable surface is arranged at the other end inside the connecting member, and the cleaning component includes a cleaning mechanism for cleaning the circumferential surface of the cable; and a grinding mechanism for cleaning the axial surface of the cable, the grinding mechanism being driven passively when the connecting member moves along the cable, and a transmission mechanism is arranged between the cleaning mechanism and the grinding mechanism for driving the cleaning mechanism to move by relying on the movement of the grinding mechanism.

[0007] As a preferred solution of the cable core breakage detection device described in the present invention, wherein: the cleaning mechanism includes a fixed ring with a "C"-shaped cross-section contour and a cleaning sleeve, the fixed ring is fixed to the inner wall of the connecting member and the opening side faces the opening side of the connecting member, a guiding ring groove is penetrated and opened on the inner circumferential surface of the fixed ring, an external gear ring is arranged on the outer circumferential surface of the cleaning sleeve, the cleaning sleeve is coaxially arranged inside the fixed ring and the external gear ring is slidably arranged inside the guiding ring groove, and cleaning bristles are arranged around the inner wall of the cleaning sleeve.

[0008] As a preferred solution of the cable core breakage detection device described in the present invention, wherein: the cleaning mechanism further includes a retaining strip, the shape of the retaining strip is a semi-circular ring equal to the radian of the fixed ring, a limiting ring groove is coaxially opened on the surface of the fixed ring, the retaining strip is installed inside the limiting ring groove and is slidably connected in the circumferential direction, anti-slip lines are arranged on the inner wall of the limiting ring groove, and when the retaining strip slides to the opening side of the fixed ring, they form a ring structure together, and dial rods are connected to the outer side surfaces of both ends of the retaining strip.

[0009] As a preferred solution of the cable core breakage detection device described in the present invention, wherein: the cleaning mechanism further includes a scraping plate, mounting plates are arranged around the inner wall of the cleaning sleeve in an array, a guiding sliding groove is radially opened on the side wall of the mounting plate, the shape of the scraping plate is a "T"-shaped contour, and the lower end of the scraping plate is slidably connected with the guiding sliding groove, and a positioning spring is radially connected between the inner wall of the end of the guiding sliding groove and the scraping plate.

[0010] As a preferred solution of the cable core breakage detection device described in the present invention, wherein: the grinding mechanism includes a grinding belt, the grinding belt is located on the upper and lower sides inside the connecting member and is in contact with the surface of the cable, rotating cylinders for tensioning the grinding belt are arranged at both ends inside the grinding belt, limiting sliders are rotatably arranged at both ends of the rotating cylinder, supporting plates are arranged on the inner wall of the connecting member and at both ends of the rotating cylinder, limiting sliding grooves are longitudinally opened on the side walls of the supporting plates, the limiting sliders are installed inside the limiting sliding grooves and are slidably connected up and down, and fixing springs are longitudinally connected between the inner wall of the end of the limiting sliding groove and the limiting sliders.

[0011] As a preferred embodiment of the cable core break detection device described in the present invention, the following applies: The transmission mechanism includes a transmission shaft, a synchronous belt, a transmission belt, and belt pulleys. There are two transmission shafts arranged in parallel and rotatably arranged on the upper and lower inner walls of the connecting member. One end of the transmission shaft facing the fixed ring is connected to a transmission gear that meshes with the external gear ring. The synchronous belt is installed between the two transmission shafts. A synchronous shaft that is in contact with and drives the synchronous belt is rotatably arranged on the inner side wall of the connecting member. There are two belt pulleys, and one of the belt pulleys is connected to the end of one of the rotating cylinders, while the other belt pulley is rotatably arranged on the inner side wall of the connecting member. The transmission belt is wound around the outer surface of the belt pulleys. A driven shaft that is in contact with and drives the transmission belt is rotatably arranged on the inner side wall of the connecting member. Bevel gears are connected to the adjacent ends of the synchronous shaft and the driven shaft, and the bevel gears mesh with each other.

[0012] As a preferred embodiment of the cable core break detection device described in the present invention, the following applies: The transmission mechanism further includes a tension pulley. The tension pulley is arranged inside the connecting member to tension the transmission belt. A positioning chute is horizontally opened on the inner wall of the connecting member and on the inner side of the transmission belt. A positioning slider is rotatably arranged at the axis of the tension pulley. The positioning slider is installed inside the positioning chute and is horizontally slidably connected to each other. A return spring is horizontally connected between the inner wall of the end of the positioning chute and the positioning slider.

[0013] As a preferred embodiment of the cable core break detection device described in the present invention, the following applies: The traveling assembly includes a driving traction wheel and a driven traction wheel. The driven traction wheel and the driving traction wheel are vertically distributed and rotatably installed on the upper and lower inner walls of the connecting member. Cable grooves are circumferentially opened on the outer surfaces of the middle parts of the driving traction wheel and the driven traction wheel. The connection between the driven traction wheel and the inner wall of the connecting member is vertically telescopic.

[0014] As a preferred embodiment of the cable core break detection device described in the present invention, the following applies: A housing that communicates with the inside of the connecting member is provided above the top of the connecting member and above the driven traction wheel. Above the top of the driven traction wheel, there is a bracket that is rotatably connected to both ends of the driven traction wheel. Positioning rods are vertically arranged at the tops of both ends of the bracket. A positioning frame is connected to the inner wall of the housing. The positioning rods and the positioning frame are slidably connected vertically. A support spring is vertically connected between the top of the bracket and the inner top of the housing.

[0015] As a preferred embodiment of the cable core break detection device of the present invention, the driving assembly includes a motor, a battery, and a control switch controlled by receiving a wireless signal. The motor is installed at the bottom of the connecting member and is belt-drivenly connected to the active traction wheel. The battery is installed at the bottom of the connecting member and is electrically connected to the motor. The control switch is installed at the bottom of the connecting member and is used to control the opening and closing of the circuit between the battery and the motor.

[0016] Compared with the prior art, the beneficial effects that the present invention can achieve are: Through the designed cleaning assembly cooperating with the detection probe, the surface cleaning of the cable and the core break detection can be carried out simultaneously, avoiding the step-by-step operation of first cleaning and then detecting in the traditional method, significantly improving the work efficiency. Especially in the case of long cables or complex environments, it reduces human intervention and repetitive labor. The cleaning assembly automatically cleans the surface of the cable, improving the detection accuracy. Through the transmission mechanism, the synchronous movement of the grinding mechanism and the cleaning mechanism is realized. Without an additional power source, the cleaning assembly runs passively as the cable core break detection device moves forward, further simplifying the device structure and operation process. The cleaning operation and the detection are carried out simultaneously, improving the efficiency. The cleaning mechanism is responsible for cleaning the circumferential surface of the cable, and the grinding mechanism is responsible for cleaning the axial surface of the cable. The two work together to ensure that the surface of the cable is thoroughly cleaned, eliminating the poor contact caused by surface contamination, thereby ensuring the accuracy of signal transmission and improving the detection accuracy. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a cable core break detection device.

[0018] Figure 2 It is a schematic diagram of the driven traction wheel of a cable core break detection device.

[0019] Figure 3 It is a schematic diagram of the motor of a cable core break detection device.

[0020] Figure 4 It is a schematic diagram of the transmission belt of a cable core break detection device.

[0021] Figure 5 It is a schematic diagram of the transmission shaft of a cable core break detection device.

[0022] Figure 6 It is a schematic diagram of the abrasive belt of a cable core break detection device.

[0023] Figure 7 It is a schematic diagram of the cleaning sleeve of a cable core break detection device.

[0024] Wherein: 1. Detector; 2. Connecting piece; 3. Cleaning sleeve; 4. Cleaning brush bristles; 5. Stop bar; 6. Abrasive belt; 7. Detection probe; 8. Driving traction wheel; 9. Driven traction wheel; 10. Housing; 11. Cable trough; 12. Bracket; 13. Support spring; 14. Positioning rod; 15. Positioning frame; 16. Motor; 17. Battery; 18. Control switch; 19. Transmission belt; 20. Tensioning pulley; 21. Positioning slider; 22. Return spring; 23. Fixed ring; 24. External gear ring; 25. Transmission shaft; 26. Transmission gear; 27. Rotary drum; 28. Pulley; 29. Driven shaft; 30. Synchronous shaft; 31. Bevel gear; 32. Positioning chute; 33. Synchronous belt; 34. Support plate; 35. Limit chute; 36. Limit slider; 37. Fixed spring; 38. Guide ring groove; 39. Limit ring groove; 40. Anti-slip pattern; 41. Mounting plate; 42. Lever; 43. Guide chute; 44. Scraper; 45. Positioning spring. Detailed implementation manners

[0025] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0026] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments. Embodiment

[0028] Please refer to Figures 1 to 7 As shown, the present invention provides a cable core breakage detection device, including a detector 1. A connecting piece 2 with a "C"-shaped cross-section is connected and arranged on the back of the detector 1; a detection probe 7 signal-connected to the detector 1 is arranged in the middle section of the interior of the connecting piece 2, and a walking component for moving along the cable is arranged at one end of the interior of the connecting piece 2, and a driving component for driving the walking component is arranged at the bottom of the connecting piece 2; The detector 1 and the detection probe 7 are used to detect the core breakage situation of the cable. The detector 1 is supported by the connecting piece 2 and moves along the cable. It can also be automatically moved through the walking component inside the connecting piece 2, and the walking component is driven by the driving component at the bottom, so that the detection probe 7 inside the connecting piece 2 can continuously and automatically detect along the cable surface; Specifically, the walking assembly includes a driving traction wheel 8 and a driven traction wheel 9. The driven traction wheel 9 and the driving traction wheel 8 are vertically distributed and are rotatably installed on the upper and lower inner walls of the connecting piece 2. Cable grooves 11 are circumferentially formed on the outer surfaces of the middles of the driving traction wheel 8 and the driven traction wheel 9. The connection between the driven traction wheel 9 and the inner wall of the connecting piece 2 is a vertically telescopic connection; The driving traction wheel 8 is responsible for driving the device to move, and the driven traction wheel 9 cooperates with the driving traction wheel 8 for traction. Cable grooves 11 are provided on the outer surfaces of the middles of both, which are used to fix and guide the cable. The vertical telescopic movement between the driven traction wheel 9 and the inner wall of the connecting piece 2 can adjust the distance between the traction wheels to adapt to cables of different diameters, ensuring stable contact and smooth movement; Specifically, a housing 10 communicating with the inside of the connecting piece 2 is provided above the top of the connecting piece 2 and above the driven traction wheel 9. Above the top of the driven traction wheel 9, a bracket 12 rotatably connected to both ends of the driven traction wheel 9 is provided. Vertical positioning rods 14 are vertically provided at the tops of both ends of the bracket 12. A positioning frame 15 is connected to the inner wall of the housing 10. The positioning rods 14 and the positioning frame 15 are slidably connected vertically. A support spring 13 is vertically connected between the top of the bracket 12 and the inner top of the housing 10; Specifically, the driving assembly includes a motor 16, a battery 17, and a control switch 18 that receives wireless signal control. The motor 16 is installed at the bottom of the connecting piece 2 and is connected to the driving traction wheel 8 by belt drive. The battery 17 is installed at the bottom of the connecting piece 2 and is electrically connected to the motor 16. The control switch 18 is installed at the bottom of the connecting piece 2 and is used to control the opening and closing of the circuit between the battery 17 and the motor 16; the control switch 18 receives wireless signals and is used to remotely control the opening and closing of the circuit between the battery 17 and the motor 16, thereby starting or stopping the operation of the motor 16, realizing the remote control of the movement of the cable core break detection device, facilitating the operator to control the movement of the device even when at a relatively long distance. Powered by the battery 17, the device can work flexibly in an environment without an external power source, increasing the portability and practicality of the device; At the other end inside the connecting piece 2, a cleaning assembly for cleaning the surface of the cable is provided. The cleaning assembly includes a cleaning mechanism for cleaning the circumferential surface of the cable; Specifically, the cleaning mechanism includes a fixed ring 23 with a "C"-shaped cross-section and a cleaning sleeve 3. The fixed ring 23 is fixed to the inner wall of the connecting piece 2 with the opening side facing the opening side of the connecting piece 2. A guiding ring groove 38 is penetrated through the inner circumferential surface of the fixed ring 23. An external gear ring 24 is provided on the outer circumferential surface of the cleaning sleeve 3. The cleaning sleeve 3 is coaxially arranged inside the fixed ring 23 and the external gear ring 24 is slidably arranged inside the guiding ring groove 38. Cleaning bristles 4 are circumferentially arranged on the inner wall of the cleaning sleeve 3; Through the cooperation of the guide ring groove 38 and the outer gear ring 24, the cleaning sleeve 3 can stably slide in the circumferential direction, thereby maintaining the continuity and uniformity of the cleaning action. The internal cleaning bristles 4 can surround the cable, comprehensively clean the cable surface, remove dust, dirt and other impurities, ensure that the cable surface is clean during the detection process, thereby improving the detection accuracy; Specifically, the cleaning mechanism also includes a baffle 5, the baffle 5 is in the shape of a semicircular ring with the same arc as the fixed ring 23, a limiting ring groove 39 is coaxially provided on the surface of the fixed ring 23, the baffle 5 is installed inside the limiting ring groove 39 and is slidably connected in the circumferential direction, the inner wall of the limiting ring groove 39 is provided with anti-slip grooves 40, the baffle 5 slides to the opening side of the fixed ring 23 to form a circular ring structure, and the outer side surfaces at both ends of the baffle 5 are connected with a lever 42; Specifically, the cleaning mechanism further includes a scraper 44. The inner wall of the cleaning sleeve 3 is provided with a mounting plate 41 in an array. The side wall of the mounting plate 41 is radially provided with a guide slot 43. The outer shape of the scraper 44 is a "T"-shaped profile. The lower end of the scraper 44 is slidably connected to the guide slot 43. A positioning spring 45 is radially connected between the inner wall of the end of the guide slot 43 and the scraper 44. and a grinding mechanism for cleaning the axial surface of the cable, the grinding mechanism passively moves when the connecting member 2 moves along the cable, and a transmission mechanism is provided between the cleaning mechanism and the grinding mechanism, for realizing the movement of the cleaning mechanism driven by the movement of the grinding mechanism; Specifically, the grinding mechanism includes a grinding belt 6, which is located at the upper and lower sides of the interior of the connector 2 and contacts the surface of the cable. A rotating drum 27 for tensioning the grinding belt 6 is provided at both ends of the interior of the grinding belt 6. A limiting slider 36 is rotatably provided at both ends of the rotating drum 27. A support plate 34 is provided on the inner wall of the connector 2 and at both ends of the rotating drum 27. A limiting slot 35 is longitudinally provided on the side wall of the support plate 34. The limiting slider 36 is installed inside the limiting slot 35 and is slidably connected up and down. A fixing spring 37 is longitudinally connected between the inner wall of the end of the limiting slot 35 and the limiting slider 36. The grinding mechanism continuously and evenly grinds the cable surface through the tensioned grinding belt 6 to remove the oxide layer, dirt or attachments on the surface. The limiting slide 35 and the fixing spring 37 enable the grinding belt 6 to be fine-tuned according to the shape and pressure of the cable surface, ensuring that the grinding process is smooth and effective without damaging the cable, so that the cable surface is thoroughly cleaned before detection, thereby improving the accuracy and stability of cable detection; Specifically, the transmission mechanism includes a transmission shaft 25, a synchronous belt 33, a transmission belt 19, and a pulley 28. There are two transmission shafts 25 arranged in parallel and rotatably arranged on the inner walls of the upper and lower sides of the connecting member 2. One end of the transmission shaft 25 facing the fixed ring 23 is connected with a transmission gear 26 meshing with the external gear ring 24. The synchronous belt 33 is installed between the two transmission shafts 25. A synchronous shaft 30 in contact transmission with the synchronous belt 33 is rotatably arranged on the inner side wall of the connecting member 2. There are two pulleys 28, and one of the pulleys 28 is connected to the end of one of the rotating cylinders 27. Then the other pulley 28 is rotatably arranged on the inner side wall of the connecting member 2. The transmission belt 19 is wound around the outer surface of the pulley 28. A driven shaft 29 in contact transmission with the transmission belt 19 is rotatably arranged on the inner side wall of the connecting member 2. Bevel gears 31 are connected to the adjacent ends of the synchronous shaft 30 and the driven shaft 29, and the bevel gears 31 mesh with each other; When the device moves along the cable, the abrasive belt 6 rotates through the rotating cylinder 27 due to the frictional resistance. The rotating cylinder 27 rotates accordingly and simultaneously drives the pulley 28 to rotate. The rotation of the pulley 28 drives the transmission belt 19 to move. The movement of the transmission belt 19 drives the driven shaft 29 to rotate. The driven shaft 29 drives the synchronous shaft 30 to rotate via the bevel gear 31. The rotation of the synchronous shaft 30 drives the synchronous belt 33 to move. The movement of the synchronous belt 33 drives the transmission shaft 25 to rotate. The transmission shaft 25 drives the external gear ring 24 to rotate via the transmission gear 26. The external gear ring 24 drives the cleaning sleeve 3 to rotate. The cleaning mechanism moves synchronously with the grinding mechanism without an additional power source and operates passively as the cable core break detection device moves forward; Specifically, the transmission mechanism further includes a tensioning wheel 20. The tensioning wheel 20 is arranged inside the connecting member 2 for tensioning the transmission belt 19. A positioning chute 32 is horizontally opened on the inner wall of the connecting member 2 and on the inner side of the transmission belt 19. A positioning slider 21 is rotatably arranged at the axis of the tensioning wheel 20. The positioning slider 21 is installed inside the positioning chute 32 and is horizontally slidably connected to each other. A return spring 22 is horizontally connected between the inner wall of the end of the positioning chute 32 and the positioning slider 21.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A cable core breakage detection device, comprising a detector (1), characterized in that: A connecting member (2) with a "C"-shaped cross-section is connected to the back of the detector (1); A detection probe (7) signal-connected to the detector (1) is provided in the middle section inside the connecting member (2). A traveling assembly for moving along the cable is provided at one end inside the connecting member (2), and a driving assembly for driving the traveling assembly is provided at the bottom of the connecting member (2); A cleaning assembly for cleaning the surface of the cable is provided at the other end inside the connecting member (2). The cleaning assembly includes a cleaning mechanism for cleaning the circumferential surface of the cable; And a grinding mechanism for cleaning the axial surface of the cable. The grinding mechanism moves passively when the connecting member (2) moves along the cable. A transmission mechanism is provided between the cleaning mechanism and the grinding mechanism for driving the cleaning mechanism to move by relying on the movement of the grinding mechanism.

2. A cable core breakage detection device according to claim 1, characterized in that: The cleaning mechanism includes a fixed ring (23) with a "C"-shaped cross-section and a cleaning sleeve (3). The fixed ring (23) is fixed to the inner wall of the connecting member (2) with the opening side facing the opening side of the connecting member (2). A guiding ring groove (38) is penetrated and opened on the inner circumferential surface of the fixed ring (23). An external gear ring (24) is provided on the outer circumferential surface of the cleaning sleeve (3). The cleaning sleeve (3) is coaxially arranged inside the fixed ring (23) and the external gear ring (24) is slidably arranged inside the guiding ring groove (38). Cleaning bristles (4) are arranged around the inner wall of the cleaning sleeve (3).

3. A cable core breakage detection device according to claim 2, characterized in that: The cleaning mechanism further includes a retaining strip (5). The outer shape of the retaining strip (5) is a semi-circular ring with the same radian as the fixed ring (23). A limiting ring groove (39) is coaxially opened on the surface of the fixed ring (23). The retaining strip (5) is installed inside the limiting ring groove (39) and is slidably connected in the circumferential direction. Anti-slip lines (40) are provided on the inner wall of the limiting ring groove (39). When the retaining strip (5) slides to the opening side of the fixed ring (23), they form a ring structure together. Pushing rods (42) are connected to the outer side surfaces of both ends of the retaining strip (5).

4. A cable core breakage detection device according to claim 2, characterized in that: The cleaning mechanism further includes a scraping plate (44). Mounting plates (41) are arranged in an annular array around the inner wall of the cleaning sleeve (3). A guiding sliding groove (43) is radially opened on the side wall of the mounting plate (41). The outer shape of the scraping plate (44) is a "T" shape. The lower end of the scraping plate (44) is slidably connected to the guiding sliding groove (43). A positioning spring (45) is radially connected between the inner wall of the end of the guiding sliding groove (43) and the scraping plate (44).

5. A cable core breakage detection device according to claim 2, characterized in that: The grinding mechanism comprises a grinding belt (6), wherein the grinding belt (6) is located at the upper and lower sides of the interior of the connecting member (2) and contacts the surface of the cable, and rotating drums (27) for tensioning the grinding belt (6) are provided at both ends of the interior of the grinding belt (6), and limiting sliders (36) are rotatably provided at both ends of the rotating drum (27), and support plates (34) are provided on the inner wall of the connecting member (2) and at both ends of the rotating drum (27), and a limiting slide groove (35) is longitudinally provided on the side wall of the support plate (34), and the limiting slide groove (35) is installed inside the limiting slide groove (35) and is slidably connected up and down, and a fixing spring (37) is longitudinally connected between the inner wall of the end of the limiting slide groove (35) and the limiting slide groove (36).

6. A cable core breakage detection device according to claim 5, characterized in that: The transmission mechanism comprises a transmission shaft (25), a synchronous belt (33), a transmission belt (19) and a pulley (28); two transmission shafts (25) are provided and are distributed in parallel and are rotatably arranged on the upper and lower inner walls of the connecting member (2); one end of the transmission shaft (25) facing the fixed ring (23) is connected to a transmission gear (26) meshing with the outer gear ring (24); the synchronous belt (33) is installed between the two transmission shafts (25); and a synchronous shaft (26) that contacts and transmits the synchronous belt (33) is rotatably arranged on the inner wall of the connecting member (2). 30), two pulleys (28) are provided, and one of the pulleys (28) is connected to the end of one of the rotating drums (27), and the other pulley (28) is rotatably provided on the inner wall of the connecting member (2), the transmission belt (19) is wound around the outer surface of the pulley (28), and a driven shaft (29) which contacts and drives the transmission belt (19) is rotatably provided on the inner wall of the connecting member (2), and bevel gears (31) are connected to the adjacent ends of the synchronous shaft (30) and the driven shaft (29), and the bevel gears (31) are meshed with each other.

7. A cable core breakage detection device according to claim 6, characterized in that: The transmission mechanism further comprises a tensioning wheel (20), the tensioning wheel (20) being arranged inside the connecting member (2) for tensioning the transmission belt (19), a positioning groove (32) being transversely provided on the inner wall of the connecting member (2) and located inside the transmission belt (19), a positioning slider (21) being provided for rotation around the axis of the tensioning wheel (20), the positioning slider (21) being installed inside the positioning groove (32) and being transversely slidably connected to each other, and a return spring (22) being transversely connected between the inner wall of the end of the positioning groove (32) and the positioning slider (21).

8. A cable core breakage detection device according to claim 1, characterized in that: The travel assembly comprises a driving traction wheel (8) and a driven traction wheel (9), the driven traction wheel (9) and the driving traction wheel (8) being arranged vertically and rotatably mounted on the upper and lower inner walls of the connecting member (2), the central outer surfaces of the driving traction wheel (8) and the driven traction wheel (9) are surrounded by a cable groove (11), and the driven traction wheel (9) and the inner wall of the connecting member (2) are telescopically connected vertically.

9. A cable core breakage detection device according to claim 8, characterized in that: A cover shell (10) is provided at the top of the connecting member (2) and above the driven traction wheel (9), and is communicated with the interior of the connecting member (2). A bracket (12) is provided above the top of the driven traction wheel (9) and is rotatably connected to both ends of the driven traction wheel (9). Positioning rods (14) are vertically provided at the tops of both ends of the bracket (12). A positioning frame (15) is connected to the inner wall of the cover shell (10). The positioning rod (14) and the positioning frame (15) are slidably connected up and down. A support spring (13) is vertically connected between the top of the bracket (12) and the inner top of the cover shell (10).

10. A cable core breakage detection device according to claim 8, characterized in that: The driving assembly comprises a motor (16), a battery (17) and a control switch (18) for receiving wireless signal control, wherein the motor (16) is mounted on the bottom of the connecting member (2) and is belt-drivenly connected to the active traction wheel (8), the battery (17) is mounted on the bottom of the connecting member (2) and is electrically connected to the motor (16), and the control switch (18) is mounted on the bottom of the connecting member (2) and is used to control the opening and closing of the circuit between the battery (17) and the motor (16).

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