Cable convenient for detecting damage degree

Abstract

The invention discloses a cable convenient to detect the damage degree, and belongs to the technical field of cables, the cable comprises a cable core, the outer wall of the cable core is wrapped with a protection layer used for protecting the exterior of the cable core, the outer wall of the protection layer is sleeved with a shell, and a monitoring structure used for measuring resistance is fixedly installed in the shell. The resistance change of the resistor is continuously monitored through the monitoring structure, the damage degree of the cable is judged through the abnormal fluctuation of the resistance of the resistor, when the cable is seriously damaged, more heat is generated at the damaged part of the cable along with the increase of the resistor, and when the heat is accumulated to reach the melting point of low-temperature soldering tin, the damage degree of the cable is judged. When the cable core is damaged, the low-temperature soldering tin is melted and wraps the damaged part outside the cable core to temporarily protect the cable, and meanwhile, smoke generated when the low-temperature soldering tin is melted continuously diffuses and rises, so that an inspector can visually observe abnormal smoke, quickly find the damaged part and overhaul the cable.

Description

Technical Field

[0001] The invention relates to the field of cables, in particular to a cable which is convenient for detecting the degree of damage. Background Art

[0002] Cables are key components of power transmission and are widely used in urban power grids, industrial production and other fields. Once a cable fails, it will directly affect the power supply and have a serious impact on production and life. Therefore, it is necessary to detect the extent of the damage.

[0003] After massive searches, it was found that the prior art publication number is CN115762889A, which discloses a cable, comprising: a sheath layer, a bundle tube and a conductive wire arranged in sequence from the outside to the inside; an axial cavity is provided at the axis of the sheath layer, and the bundle tube is arranged in the axial cavity coaxially with the sheath layer; the conductive wire is arranged in the bundle tube along the axial direction of the cable; a plurality of outer cavities along the axial direction of the cable are evenly distributed on the sheath layer around the axis of the cable; the outer cavity is open at the outer wall of the sheath layer, and a spiral or annular metal wire and / or alloy wire is provided in the outer cavity as an induction wire; the outer cavity is filled with conductive silicone rubber and extends to the outer surface of the sheath layer to form a coating on the outer surface of the sheath layer.

[0004] Therefore, based on the above search and in combination with the existing ones, the above-mentioned cable has an anti-bite function, but damage cannot be quickly detected, and whether it is the above-mentioned cable or the existing cable, there is a problem of cable outer skin being damaged due to bumps during use or transportation. The protective layer of the cable is damaged, resulting in the cable core being exposed, which is easy to come into contact with other conductors or the ground, thereby causing a short circuit. The short circuit will not only cause circuit failure, but may also generate instantaneous high temperature and electric arc, causing damage to the cable and peripheral equipment, especially in humid or flammable environments. Such arcs or sparks may cause safety accidents such as fire or explosion. Therefore, the present invention provides a cable that is easy to detect the degree of damage to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a cable which is easy to detect the degree of damage, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising a cable core, the outer wall of the cable core is wrapped with a protective layer for protecting the outside of the cable core, the outer wall of the protective layer is sleeved with a shell, a monitoring structure for measuring resistance is fixedly installed inside the shell, and the change of the resistance value is continuously monitored by the monitoring structure, and the degree of damage to the cable is judged by the abnormal fluctuation of the resistance value, a clamping structure for fixing the shell to the outer wall of the cable core is fixedly installed inside the shell, and a fixed structure for docking is also fixedly connected inside the shell, the fixed structure includes a top plate, the top plate is rotatably connected to the inside of the shell, and when the fixed structure expands, it pushes the device docked with the shell or another group of shells to separate from the shell, and pushes the two groups of shells docked together to separate, one end of the outer wall of the shell is fixedly connected with an anti-wear layer, the inside of the anti-wear layer is fixedly connected with a filling layer for filling the damaged part of the cable core, and the smoke generated when the filling layer melts reminds the inspector.

[0007] Furthermore, the protective layer is divided into an insulating layer, an inner protective layer, an armor layer, and an outer protective layer. The insulating layer is wrapped around the outer wall of the cable core and ensures the safe transmission of electric energy along the cable core. The inner protective layer is fixedly connected to the outer wall of the insulating layer to further protect the insulating layer. The armor layer is located on the outer wall of the inner protective layer and enhances the compression, tensile and torsion resistance of the cable. The outer protective layer is fixedly wrapped around the outer wall of the armor layer to protect the armor layer from erosion by external environmental factors.

[0008] Furthermore, an annular baffle for separation is fixedly installed inside the anti-wear layer, and the annular baffle is located between the two filling layers.

[0009] Furthermore, a protective film for preventing pollution is fixedly connected to the outer wall of the filling layer, and the impurities in the air are isolated by wrapping the protective film around the outer wall of the filling layer.

[0010] Furthermore, the clamping structure includes a rotating plate, which is rotatably connected to the inner cavity of the shell, and the inner cavity of the rotating plate is slidably connected to a push shaft, and the end of the push shaft away from the rotating plate is fixedly connected to a fixed plate for squeezing and fixing the outer wall of the outer protective layer, and the inner cavity of the rotating plate is provided with an arc groove for pushing the fixed plate to move, and the push shaft is slidably connected to the inner cavity of the arc groove.

[0011] Furthermore, the fixing structure includes an annular plate, which is rotatably connected to the inner cavity of the shell, and an annular support is fixedly connected to one end of the annular plate close to the rotating plate, and the annular plate and the rotating plate are fixedly connected via the annular support.

[0012] Furthermore, the inner cavity of the shell is slidably connected with a card plate for docking, and a total of four groups of the card plates are provided, and the docking of the two shells is completed through the card plates, and the outer wall of the shell is provided with a special-shaped slot matching the card plate.

[0013] Furthermore, the inner cavity of the shell is slidably connected with a push plate for pushing the card plate to move, the top of the push plate is provided with an airbag 1 for pushing the card plate to move downward, and the bottom of the push plate is provided with an airbag 2 for pushing the push plate to move upward.

[0014] Furthermore, both ends of the top plate are rotatably connected to the inner cavity of the card plate through bearings, and a guide block is installed on the top of the top plate for pushing the top plate to flip outward. When the top plate is moved up by the guide block, the top plate is pushed to flip outward, thereby pushing the two shells that have been docked to separate.

[0015] Furthermore, the monitoring structure includes an induction coil, which is sleeved on the outer wall of the annular support and is used to detect resistance. A coil for generating a magnetic field is fixedly installed on one side of the induction coil, and a measurement display device for displaying measurement results is installed on the surface of the shell.

[0016] Beneficial Effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the cable is seriously damaged, as the resistance increases, more heat is generated at the damaged part of the cable. When the accumulated heat is enough to reach the melting point of the low-temperature solder, the low-temperature solder will melt and wrap around the damaged part of the cable core to temporarily protect the cable. At the same time, the smoke generated by the low-temperature solder when it melts will continue to spread and rise, so that the inspectors can visually observe the smoke abnormality, quickly find the damaged part, and repair the cable.

[0019] 2. During use, when electrical energy is safely transmitted along the cable core, the generated current will generate a magnetic field when passing through the coil, and the induction coil will sense the magnetic field and then detect the cable. When the cable is damaged, the induction coil can capture the changes in the magnetic field and judge the degree of damage to the cable based on the fluctuations, providing reliable data support for subsequent maintenance and repair work.

[0020] 3. When the cable is severely damaged during use and the resistance exceeds the normal fluctuation threshold set in advance, the measurement display device transmits a signal through the signal transmitting module, so that the motor receives the signal through the signal receiving module, and then squeezes the airbag four through the annular plate and the special-shaped extrusion plate to make the airbag two swell, and then push the push plate to drive the card plate and the top plate to unfold, so that the other group of card plates fall off the special-shaped slots of the shell, and the top plate separates the two merged shells by flipping, thereby avoiding further expansion of the damage range, creating favorable conditions for subsequent maintenance and processing, and ensuring the safety and stability of the entire cable system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of a cable that facilitates detection of damage;

[0022] Figure 2 A cross-sectional view of a cable core in a cable for facilitating detection of damage;

[0023] Figure 3 A plan view of the shielding layer in a cable that facilitates detection of damage;

[0024] Figure 4 A schematic diagram of the structure of a housing in a cable that facilitates detection of damage;

[0025] Figure 5 A schematic diagram of the structure of a fixing plate in a cable for facilitating detection of damage degree;

[0026] Figure 6 A schematic diagram of the structure of an induction coil in a cable for facilitating detection of damage;

[0027] Figure 7 A schematic diagram of the structure of a top plate in a cable that facilitates detection of damage;

[0028] Figure 8 The present invention is a schematic diagram of the structure of a special-shaped extruded plate in a cable which is convenient for detecting the degree of damage.

[0029] In the figure: 1, cable core; 2, protective layer; 3, shell; 4, clamping structure; 5, anti-wear layer; 6, filling layer; 7, fixing structure; 8, monitoring structure; 201, insulation layer; 202, inner sheath; 203, armor layer; 204, outer sheath;

[0030] 401, rotating plate; 402, push shaft; 403, fixed plate; 404, arc groove; 405, slide groove; 406, push block; 407, limit groove; 408, pull block; 501, annular baffle; 601, protective film; 701, top plate; 702, annular support; 703, gear block; 704, gear; 705, motor; 706, sliding block; 707, clamping plate; 708, push plate; 709, airbag 1; 710, airbag 2;

[0031] 711, square slot; 712, round card slot; 713, special-shaped slot; 714, round plug-in block; 715, airbag three; 716, airbag four; 717, special-shaped extrusion plate; 718, baffle plate one; 719, baffle plate two; 720, guide block; 721, sliding slot; 722, reset plate; 723, fan-shaped slot; 724, annular plate; 801, coil; 802, measurement and display device; 803, induction coil. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1 to 8A cable that is easy to detect the degree of damage, including a cable core 1, the outer wall of the cable core 1 is wrapped with a protective layer 2 for protecting the outside of the cable core 1, the outer wall of the protective layer 2 is sleeved with a shell 3, the inside of the shell 3 is fixedly installed with a monitoring structure 8 for measuring resistance, and the resistance value change of the resistance is continuously monitored by the monitoring structure 8, and the degree of damage of the cable is judged by the abnormal fluctuation of the resistance value, the inside of the shell 3 is fixedly installed with a clamping structure 4 for fixing the shell 3 to the outer wall of the cable core 1, the inside of the shell 3 is also fixedly connected with a fixed structure 7 for docking, the fixed structure 7 includes a top plate 701, the top plate 701 is rotatably connected to the inside of the shell 3, and when the fixed structure 7 expands, it pushes the two groups of shells 3 docked together to separate, and when one group of shells 3 is docked with other equipment, the expansion of the fixed structure 7 can also push the shell 3 to pop open, and dock with the opposite The equipment connected is separated, and an anti-wear layer 5 is fixedly connected to one end of the outer wall of the shell 3. A filling layer 6 for filling the damaged part of the cable core 1 is fixedly connected inside the anti-wear layer 5, and the smoke generated when the filling layer 6 melts reminds the inspector. Specifically, the material of the filling layer 6 is low-temperature solder, and the melting point of the low-temperature solder is usually between tens of degrees Celsius and more than one hundred degrees Celsius. Therefore, when the protective layer 2 on the outer wall of the cable core 1 is damaged, it may cause the local environment of the cable core 1 to change, such as moisture, slight physical damage, etc., which will cause the resistance to increase. During the operation of the cable, according to Joule's law, the increase in resistance will cause more heat to be generated in this part. When the accumulated heat is enough to reach the melting point of the low-temperature solder, the low-temperature solder will melt and wrap around the damaged part of the outside of the cable core 1, playing a certain degree of isolation role, preventing the core from being accelerated oxidized due to exposure or being corroded by other impurities.

[0034] At the same time, low-temperature solder produces smoke when it melts. Cables need to be tested and powered on before use, and cables are usually laid in relatively fixed areas with inspection route planning. If the local resistance of the wire changes and melts the low-temperature solder, the solder will produce smoke, and the smoke will diffuse and rise in a specific space. Inspectors can observe the smoke anomaly visually, and then locate the damaged part of the cable protective layer 2 in time, and make corresponding repairs to ensure the continued safe and stable operation of the cable.

[0035] See also Figure 2-Figure 3The protective layer 2 is divided into an insulating layer 201, an inner protective layer 202, an armor layer 203, and an outer protective layer 204. The insulating layer 201 is made of cross-linked polyethylene, and the inner protective layer 202 and the outer protective layer 204 are both made of polyvinyl chloride. The armor layer 203 uses a low-carbon steel belt, which has high mechanical strength and toughness, and can effectively enhance the compression and tensile resistance of the cable. The insulating layer 201 is wrapped around the outer wall of the cable core 1. The cable core 1 has a total of five strands fixed inside the insulating layer 201, and ensures that the electric energy is safely transmitted along the cable core 1 to avoid electric shock accidents and equipment short-circuit damage caused by leakage. The inner protective layer 202 is fixedly connected to the outer wall of the insulating layer 201, which further protects the insulating layer 201 and prevents the insulating layer 201 from being damaged by external mechanical forces. The armor layer 203 is located on the outer wall of the inner protective layer 202, and enhances the compression, tensile and torsion resistance of the cable, and prevents the cable from being damaged by external mechanical forces during laying and use. The outer protective layer 204 is fixedly wrapped on the outer wall of the armor layer 203, protecting the armor layer 203 from erosion by external environmental factors, such as ultraviolet radiation, chemical corrosion, rain erosion, etc., thereby extending the service life of the armor layer 203.

[0036] See also Figure 2-Figure 3 An annular baffle 501 for separation is fixedly installed inside the anti-wear layer 5. The annular baffle 501 is located between the two filling layers 6. When the filling layer 6 melts due to the abnormal temperature rise of the resistance caused by the damage of the protective layer 2 of the cable core 1, the annular baffle 501 can physically isolate the molten filling layer 6, limit the horizontal flow range of the melted low-temperature solder, and avoid further expansion of its impact range. At the same time, it is prevented that the area where smoke is generated and diffused due to the large spread range is difficult to determine the fault area of ​​the cable core 1, which is conducive to the subsequent accurate positioning and processing of abnormal cable conditions.

[0037] See also Figure 2-Figure 3 The outer wall of the filling layer 6 is fixedly connected with a protective film 601 for preventing pollution, and the protective film 601 is wrapped around the outer wall of the filling layer 6 to isolate impurities in the air. Specifically, during the complex process of transportation and installation, once the surface of the anti-wear layer 5 is damaged or cracked due to accidents such as collision and scratching, the protective film 601 can prevent the low-temperature solder from being directly exposed to the external environment, resulting in oxidation, impurity contamination and other problems on the surface of the low-temperature solder, thereby avoiding the problem that impurity contamination changes the composition and performance of the low-temperature solder, causing abnormal melting point, and failing to normally play its protective role on the cable core 1 when needed.

[0038] Example 2: Please refer to Figure 5-6, a cable that is easy to detect the degree of damage, which is different from Example 1 in that the clamping structure 4 includes a rotating plate 401, which is rotatably connected to the inner cavity of the shell 3, and the inner cavity of the rotating plate 401 is slidably connected with a push shaft 402, and the end of the push shaft 402 away from the rotating plate 401 is fixedly connected with a fixed plate 403 for squeezing and fixing the outer wall of the outer sheath 204, and the surface of the fixed plate 403 is arc-shaped, which helps to increase the fit and stability when clamping and fixing the outer wall of the outer sheath 204, and the inner cavity of the rotating plate 401 is provided with an arc groove 404 for pushing the fixed plate 403 to move, and the push shaft 402 is slidably connected to the inner cavity of the arc groove 404, and the arc groove 404 is provided with a plurality of axis arrays located in the inner cavity of the rotating plate 401, and the number of the push shaft 402 and the fixed plate 403 and the arc groove 404 are the same. Similarly, specifically, the inner cavity of the shell 3 is provided with a slide groove 405 for providing a sliding space for the fixed plate 403, the inner cavity of the slide groove 405 is fixedly connected with a push block 406, and the end of the push block 406 close to the fixed plate 403 is fixedly connected to the fixed plate 403, the inner cavity of the shell 3 is provided with a limiting groove 407 for limiting the push block 406, the inner cavity of the limiting groove 407 is slidably connected with a pull block 408, and the pull block 408 is fixedly connected to the end of the push block 406 away from the rotating plate 401, so that when the push block 406 slides, it drives the pull block 408 to slide inside the limiting groove 407, so that the limiting groove 407 limits the push block 406 through the pull block 408, thereby preventing the push block 406 from escaping from the inner cavity of the slide groove 405 when the push block 406 is clamped and fixed to the outer wall of the outer sheath 204 due to the thinner inner diameter of the outer sheath 204 of other models.

[0039] See also Figure 5-6 The fixed structure 7 includes an annular plate 724, which is rotatably connected to the inner cavity of the shell 3. An end of the annular plate 724 close to the rotating plate 401 is fixedly connected to an annular support 702, and the annular plate 724 is fixedly connected to the rotating plate 401 through the annular support 702, so that when the annular plate 724 rotates, the rotating plate 401 is driven to rotate through the annular support 702. Specifically, the outer wall of the annular plate 724 is fixedly connected to a gear block 703, and the gear block 703 is provided with a plurality of axis arrays fixedly connected to the outer wall of the annular plate 724. The inner cavity of the shell 3 is rotatably connected to a gear 704 for driving the annular plate 724 to rotate, and the gear 704 is meshed with the gear block 703. A motor 705 is fixedly installed in the inner cavity of the shell 3, and the output shaft of the motor 705 is fixedly connected to the gear 704.

[0040] See also Figure 5The inner cavity of the shell 3 is slidably connected with a sliding block 706 for limiting the annular plate 724. The inner cavity of the shell 3 is provided with an annular groove for providing sliding of the sliding block 706. The sliding block 706 is slidably connected to the inner cavity of the annular groove, so that when the annular plate 724 rotates, it drives the sliding block 706 to slide inside the annular groove, so that the annular groove limits the annular plate 724 through the sliding block 706, so that the annular plate 724 rotates according to a preset path in the inner cavity of the shell 3, thereby avoiding the annular plate 724 from deflecting and ensuring the stability of the annular plate 724.

[0041] See also Figure 7 The inner cavity of the shell 3 is slidably connected with a card plate 707 for docking. There are four groups of card plates 707, and the docking of the two shells 3 is completed through the card plates 707. The inner cavity of the card plate 707 is provided with a circular card groove 712 for increasing stability. The outer wall of the shell 3 is provided with a special-shaped slot 713 matching the card plate 707. The inner cavity of the special-shaped slot 713 is fixedly connected with a circular plug block 714 for increasing stability, and the shape of the special-shaped slot 713 is precisely matched with the shape of the card plate 707 to ensure that the card plate 707 can be smoothly and accurately inserted therein. When the card plate 707 enters the special-shaped slot 713, the circular plug block 714 is pushed to be inserted into the special-shaped slot 713, so that the two shells 3 are less loose and more stable.

[0042] See also Figure 7 The inner cavity of the shell 3 is slidably connected with a push plate 708 for pushing the card plate 707 to move, and the top of the push plate 708 is provided with an airbag 1 709 for pushing the card plate 707 downward, and the bottom of the push plate 708 is provided with an airbag 2 710 for pushing the push plate 708 upward. Specifically, the inner cavity of the shell 3 is provided with a square groove 711 for providing sliding of the push plate 708, and the push plate 708 is slidably connected to the inner cavity of the square groove 711, and the top of the airbag 1 709 is fixedly connected to the top of the inner cavity of the square groove 711, and the airbag 2 710 is fixedly connected to the top of the inner cavity of the square groove 711. The bottom of the second capsule 710 is fixedly connected to the bottom of the inner cavity of the square groove 711, so that when the airbag 1 709 bulges, the push plate 708 is pushed to drive the card plate 707 to move downward, so that the card plate 707 enters the special-shaped slot 713 to complete the docking of the two shells 3. In addition, when the shell 3 needs to be docked with other equipment, because the card plate 707 is pushed by the airbag 1 709, the airbag 1 709 pushes the card plates 707 at four different positions to clamp the outer wall of other equipment to fix the shell 3, and equipment with different shapes can be used;

[0043] On the contrary, when the airbag 2 710 is inflated, the push plate 708 is pushed to drive the card plate 707 to move upward, so that the card plate 707 is separated from the inside of the special-shaped slot 713, so that the two shells 3 are separated;

[0044] See also Figure 7-8The inner cavity of the shell 3 is provided with a plurality of fan-shaped grooves 723, and the inner cavity of the fan-shaped groove 723 is fixedly connected with an airbag 3 715 for providing gas to the inside of the airbag 1 709, and the airbag 1 709 and the airbag 3 715 are connected by a gas pipeline 1, and the bottom of the airbag 3 715 is fixedly connected with an airbag 4 716 for providing gas to the inside of the airbag 2 710, and the airbag 2 710 and the airbag 4 716 are connected by a gas pipeline 2, and the inner cavity of the fan-shaped groove 723 is rotatably connected with a special-shaped extrusion plate 717 for extruding the airbag 3 715 and the airbag 4 716, and the end of the special-shaped extrusion plate 717 away from the card plate 707 is fixedly connected to the annular plate 724, so that when the annular plate 724 rotates, the special-shaped extrusion plate 717 is pushed Plate 717 squeezes airbag three 715 or airbag four 716, so that the gas enters the interior of airbag one 709 or airbag two 710 through gas pipeline one or gas pipeline two, and the interior of the fan-shaped groove 723 is fixedly connected with a baffle plate one 718 for limiting the position of airbag three 715, and the bottom of baffle plate one 718 is fixedly connected with a baffle plate two 719 for limiting the position of airbag four 716, and the end of baffle plate two 719 away from the annular plate 724 is fixedly connected to the inner cavity of the fan-shaped groove 723, and the internal gas of airbag three 715 or airbag four 716 is squeezed out by the cooperation of baffle plate one 718, baffle plate two 719 and special-shaped extrusion plate 717, so as to avoid local residual gas in airbag three 715 or airbag four 716 when airbag three 715 or airbag four 716 is squeezed.

[0045] See also Figure 7 , both ends of the top plate 701 are rotatably connected to the inner cavity of the card plate 707 through bearings, and a guide block 720 is installed on the top of the top plate 701 for pushing the top plate 701 to flip outward, and when the top plate 701 is unfolded, the top plate 701 is pushed to flip outward through the guide block 720, pushing the two shell bodies 3 that have been docked to be separated. Specifically, the inner cavity of the shell body 3 is provided with a sliding groove 721 for providing sliding of the card plate 707, and the inner cavity of the sliding groove 721 is fixedly connected with a reset plate 722 for pushing the top plate 701 to flip and reset. Both ends of the guide block 720 are fixedly connected to the inner cavity of the sliding groove 721, so that the card plate 707 drives the top plate 701 to unfold until the top plate 701 is higher than the reset plate 722, and continues to unfold, and the guide block 720 can push the top plate 701 to flip toward the end away from the card plate 707, so that the top plate 701 disassembles the two shell bodies 3 that are docked together;

[0046] On the contrary, when the card plate 707 moves downward, the top plate 701 can be pulled downward, so that when the inclined top plate 701 encounters the reset plate 722, the reset plate 722 will generate a blocking force on the top plate 701, so that the inclined top plate 701 gradually turns over and retracts to the inside of the card plate 707 ('upward' and 'downward' are for reference only). Figure 7 ).

[0047] Example 3: Please refer to Figure 6, a cable that is easy to detect the degree of damage, which is different from Example 1 in that the monitoring structure 8 includes an induction coil 803, which is sleeved on the outer wall of the annular support 702 and is used to detect the resistance. A coil 801 for generating a magnetic field is fixedly installed on one side of the induction coil 803, and a measurement display device 802 for displaying the measurement result is installed on the surface of the shell 3. Specifically, when the cable core 1 generates resistance, the induction coil 803 starts to work, and the coil 801 on one side thereof generates a magnetic field. According to the principle of electromagnetic induction, when current passes through the coil 801, a magnetic field is generated, and this magnetic field interacts with the resistance. When the resistance value of the resistance changes, the influence on the magnetic field will also change accordingly. The induction coil 803 can capture the change of the magnetic field and convert it into an electrical signal. These electrical signals will be transmitted to the measurement display device 802, and the measurement display device 802 analyzes and processes the electrical signal, converts it into an intuitive resistance measurement result and displays it, thereby realizing real-time detection and measurement of the resistance;

[0048] A signal receiving module for receiving signals is installed inside the motor 705, and a signal transmitting module and a communication module for transmitting signals are installed inside the measuring and displaying device 802. When the resistance fluctuation is large and exceeds the normal fluctuation threshold set in advance, the measuring and displaying device 802 transmits a signal through the signal transmitting module, so that after the motor 705 receives the signal through the signal receiving module, the driving motor 705 starts working.

[0049] The working principle of the present invention is as follows: first, the shell 3 is sleeved on the outer wall of the outer sheath 204, and then the two shells 3 to be docked are brought close to each other, or the shell 3 is placed on the outer wall of other equipment to be docked, and the motor 705 is driven. The output shaft of the motor 705 drives the gear block 703 through the gear 704 to drive the rotating plate 401 and the annular plate 724 to rotate, so that the rotating plate 401 uses the arc groove 404 to push the push shaft 402 to drive the push block 406 and the fixed plate 403 to slide and unfold, so that the fixed plate 403 is clamped on the outer wall of the outer sheath 204 to fix the position of the shell 3. At the same time, when the annular plate 724 rotates, it cooperates with the blocking plate 1 718 to squeeze the airbag 3 715, so that the gas inside the airbag 3 715 enters the airbag 1 709 through the gas pipeline 1, and after the airbag 1 709 bulges, it pushes the push plate 708 to drive the card plate 707 to move downward, so that the card plate 707 enters the special-shaped slot 713 to complete the docking of the two shells 3 or other equipment.

[0050] After the docking is completed, when in use, electric energy can be safely transmitted along the cable core 1, and resistance is generated during the transmission process. When the current passes through the coil 801, a magnetic field is generated, and the induction coil 803 will sense the magnetic field, and then detect the cable. When the cable is damaged, the induction coil 803 can capture the change of this magnetic field and judge the degree of damage to the cable based on the fluctuation. When the cable is seriously damaged, the resistance fluctuation is large. When it exceeds the normal fluctuation threshold set in advance, the measurement display device 802 transmits a signal through the signal transmitting module, so that the motor 705 receives the signal through the signal receiving module, and then the drive motor 705 starts working and pushes the gear block through the gear 704. 703 drives the rotating plate 401 and the annular plate 724 to rotate in the opposite direction, so that the rotating plate 401 uses the arc groove 404 to push the push shaft 402 to drive the push block 406 and the fixed plate 403 to slide and retract, and the cable is relaxed. At the same time, the annular plate 724 rotates in the opposite direction, so that the special-shaped extrusion plate 717 relaxes the airbag three 715, and the special-shaped extrusion plate 717 cooperates with the blocking plate 2 719 to squeeze the airbag four 716, so that the airbag two 710 bulges, and then pushes the push plate 708 to drive the card plate 707 and the top plate 701 to unfold, so that the guide block 720 can push the top plate 701 to flip to the end away from the card plate 707, so that the top plate 701 separates the two shells 3 that are connected together, thereby preventing the damage from spreading;

[0051] At the same time, when the cable is severely damaged, that is, the cable core 1 is damaged and oxidized, causing the resistance to increase, more heat is generated at the damaged part of the cable. When the accumulated heat is enough to reach the melting point of the low-temperature solder, the low-temperature solder will melt and wrap around the damaged part of the cable core 1 to temporarily protect the cable. At the same time, the low-temperature solder produces smoke when it melts, so that inspectors can visually observe the smoke abnormality, quickly find the damaged part, and repair the cable.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed in the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable that is easy to detect the degree of damage, comprising a cable core (1), characterized in that: The outer wall of the cable core (1) is wrapped with a protective layer (2) for protecting the outside of the cable core (1); the outer wall of the protective layer (2) is provided with a shell (3); a monitoring structure (8) for measuring the resistance is fixedly installed inside the shell (3); the change of the resistance value is continuously monitored by the monitoring structure (8); and the degree of damage to the cable is judged by abnormal fluctuations in the resistance value; a clamping structure (4) for fixing the shell (3) to the outer wall of the cable core (1) is fixedly installed inside the shell (3); The interior of the housing (3) is also fixedly connected to a fixed structure (7) for docking, the fixed structure (7) comprising a top plate (701), the top plate (701) being rotatably connected to the interior of the housing (3), and when the fixed structure (7) expands, the two groups of housings (3) docked together are pushed to separate, an anti-wear layer (5) is fixedly connected to one end of the outer wall of the housing (3), a filling layer (6) for filling the damaged part of the cable core (1) is fixedly connected to the interior of the anti-wear layer (5), and smoke generated when the filling layer (6) melts alerts the inspector.

2. A cable that facilitates detection of damage according to claim 1, characterized in that: The protective layer (2) is divided into an insulating layer (201), an inner protective layer (202), an armor layer (203), and an outer protective layer (204); the insulating layer (201) is wrapped around the outer wall of the cable core (1) and ensures that electric energy is safely transmitted along the cable core (1); the inner protective layer (202) is fixedly connected to the outer wall of the insulating layer (201) and further protects the insulating layer (201); the armor layer (203) is located on the outer wall of the inner protective layer (202) and enhances the compression resistance, tensile strength and torsion resistance of the cable; and the outer protective layer (204) is fixedly wrapped around the outer wall of the armor layer (203) and protects the armor layer (203) from being corroded by external environmental factors.

3. A cable that facilitates detection of damage according to claim 1, characterized in that: An annular baffle (501) for separation is fixedly installed inside the anti-wear layer (5), and the annular baffle (501) is located between two filling layers (6).

4. A cable for facilitating detection of damage according to claim 1, characterized in that: The outer wall of the filling layer (6) is fixedly connected with a protective film (601) for preventing pollution, and the impurities in the air are isolated by wrapping the protective film (601) around the outer wall of the filling layer (6).

5. A cable that facilitates detection of damage according to claim 1, characterized in that: The clamping structure (4) comprises a rotating plate (401), wherein the rotating plate (401) is rotatably connected to the inner cavity of the shell (3), and the inner cavity of the rotating plate (401) is slidably connected to a push shaft (402), and one end of the push shaft (402) away from the rotating plate (401) is fixedly connected to a fixed plate (403) for pressing and fixing the outer wall of the outer protective layer (204), and the inner cavity of the rotating plate (401) is provided with an arc groove (404) for pushing the fixed plate (403) to move, and the push shaft (402) is slidably connected to the inner cavity of the arc groove (404).

6. A cable for facilitating detection of damage according to claim 1, characterized in that: The fixed structure (7) comprises an annular plate (724) which is rotatably connected to the inner cavity of the shell (3); one end of the annular plate (724) close to the rotating plate (401) is fixedly connected to an annular support (702); and the annular plate (724) and the rotating plate (401) are fixedly connected via the annular support (702).

7. A cable for facilitating detection of damage according to claim 6, characterized in that: The inner cavity of the shell (3) is slidably connected with a card plate (707) for docking, and a total of four groups of the card plates (707) are provided. The docking of two shells (3) is completed through the card plates (707), and the outer wall of the shell (3) is provided with a special-shaped slot (713) matching the card plate (707).

8. A cable for facilitating detection of damage according to claim 7, characterized in that: The inner cavity of the shell (3) is slidably connected to a push plate (708) for pushing the card plate (707) to move, the top of the push plate (708) is provided with an air bag 1 (709) for pushing the card plate (707) to move downward, and the bottom of the push plate (708) is provided with an air bag 2 (710) for pushing the push plate (708) to move upward.

9. A cable for facilitating detection of damage according to claim 8, characterized in that: Both ends of the top plate (701) are rotatably connected to the inner cavity of the clamping plate (707) via bearings, and a guide block (720) for pushing the top plate (701) to flip outward is installed on the top of the top plate (701). When the top plate (701) moves upward, the guide block (720) pushes the top plate (701) to flip outward, thereby pushing the two shells (3) that have been docked to separate.

10. A cable that facilitates detection of damage according to claim 1, characterized in that: The monitoring structure (8) comprises an induction coil (803), which is sleeved on the outer wall of the annular support (702) and is used to detect the resistance. A coil (801) for generating a magnetic field is fixedly mounted on one side of the induction coil (803), and a measurement display device (802) for displaying the measurement result is mounted on the surface of the housing (3).

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