A novel electromagnetic induction cable

Abstract

The application relates to the technical field of cables, and discloses a novel electromagnetic induction cable which comprises an insulating connecting cover and a connecting mechanism, the connecting mechanism comprises a rotating disc, a limiting groove, an adjusting handle, an arc-shaped limiting groove, a locking piece, a second locking piece and the like. The rotating disc is rotated through the adjusting handle, the arc-shaped limiting groove drives the locking piece and the second locking piece to clamp the locking block, the locking block and the limiting sliding groove of the insulating connecting cover and the insulating connecting pipe are clamped, and the bolt and the nut of the adjusting handle and the locking handle are fixed, so that multiple stable connections are realized; the cable core body adopts a nickel-plated copper stranded wire, is externally covered with an inorganic glass fiber insulation layer, an FEP film reinforcing layer, a shielding layer and an outer sheath, compared with the traditional technology, the device realizes significant improvement in connection stability, can avoid loosening and signal attenuation caused by vibration, realizes comprehensive upgrading of protection performance, can adapt to complex working conditions such as high temperature and corrosion, realizes substantial improvement in installation and maintenance efficiency, and is suitable for new energy, industrial automation and the like.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a novel electromagnetic induction cable. Background Technology

[0002] Electromagnetic induction cables are special cables that utilize the principle of electromagnetic induction to transmit energy or signals. Their core principle lies in generating an alternating magnetic field through a changing current in a conductor, inducing a corresponding current in nearby conductors, thereby completing non-contact or contact energy or signal transmission. In fields such as industrial automation, new energy vehicles, and smart grids, electromagnetic induction cables, due to their strong anti-interference capabilities and flexible installation, have become important carriers for connecting equipment and transmitting critical data. As industrial equipment develops towards higher precision and reliability, higher demands are placed on the connection stability, protection performance, and installation efficiency of cables. They must ensure continuous and stable operation under complex conditions (such as vibration, high temperature, and corrosive environments) while facilitating rapid disassembly and maintenance to reduce equipment downtime and operating costs.

[0003] Traditional electromagnetic induction cables have many limitations in their connection structure, which seriously affect their application performance. In terms of connection stability, most use a single bolt fixation or a snap-fit ​​design. The former is prone to bolt loosening due to long-term vibration, while the latter can cause gaps due to snap wear. Both can lead to poor contact of the cable core, resulting in attenuation of electromagnetic induction signals or a decrease in energy transmission efficiency. In terms of protection performance, traditional insulation layers mostly use ordinary rubber materials, which have weak high-temperature resistance and corrosion resistance. They are prone to aging and cracking in high-temperature or humid industrial environments, leading to exposure of the internal shielding layer and susceptibility to external electromagnetic interference, affecting signal transmission accuracy. In addition, the connection components of traditional cables lack standardized design, requiring special tools for alignment during installation. The disassembly and assembly process is cumbersome, which not only increases the difficulty of construction but also prolongs equipment maintenance downtime, making it difficult to meet the needs of modern industrial production for efficient operation and maintenance.

[0004] These technical defects directly restrict the application scope of electromagnetic induction cables. In the charging system of new energy vehicles, loose connections may lead to a sharp drop in charging efficiency or even safety hazards. In the signal transmission lines of smart grids, electromagnetic interference caused by shielding failure may cause data mistransmission and affect the accuracy of grid dispatch. The complex disassembly and assembly process will increase the maintenance costs of large equipment such as wind power equipment and rail transit. Therefore, developing a new type of electromagnetic induction cable with a stable connection structure, excellent protection performance and easy operation has become the key to solving the current technical bottleneck. To this end, we propose a new type of electromagnetic induction cable. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a novel electromagnetic induction cable that solves the aforementioned problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a novel electromagnetic induction cable, comprising an insulating connecting cover, characterized in that it further comprises a connecting mechanism;

[0007] The connecting mechanism includes a rotating disk, a limiting groove, an adjusting handle, an arc-shaped limiting groove, a locking piece, and a second locking piece;

[0008] A rotating disk is movably connected to one end of the inner wall of the insulating connecting cover, a limit groove is opened on one side of the outer wall of the insulating connecting cover, and an adjustment handle is provided on one side of the outer wall of the rotating disk.

[0009] The adjusting handle extends to one end of the outer wall of the limiting groove, and two arc-shaped limiting grooves are provided on one side of the outer wall of the rotating disk in an annular arrangement.

[0010] One end of the inner wall of the arc-shaped limiting groove is movably connected to a locking piece and a second locking piece, the top of the locking piece extending to the top of the insulating connection cover, and the bottom of the second locking piece extending to the bottom of the insulating connection cover.

[0011] Preferably, the locking piece and the second locking piece are parallel vertically, and the length of the locking piece and the second locking piece is slightly larger than the radius of the insulating connection cover;

[0012] A connecting through hole is provided on the outer wall of the rotating disk near the arc-shaped limiting groove.

[0013] Preferably, the outer wall of one end of the insulating connecting cover is provided with a locking handle, and the adjusting handle is parallel to the locking handle when it is in the closed state;

[0014] Bolts are inserted into the output ends of the locking handle and the adjusting handle, and a nut is threadedly connected to the output end of the bolt away from the locking handle.

[0015] Preferably, the inner wall of one end of the insulating connection cover is provided with two locking blocks that are equidistantly distributed in a ring;

[0016] An insulating connecting tube is provided at one end of the insulating connecting cover near the locking block, and two equidistant limiting grooves are provided on the outer wall of one end of the insulating connecting tube.

[0017] The limiting slide and the locking block are engaged by a snap-fit ​​mechanism.

[0018] Preferably, a fixing block is fixedly connected to the inner side wall of the insulating connecting pipe, and a second locking block is provided on the outer wall of one end of the fixing block;

[0019] The second locking block has a horizontal T-shaped cross-section, and the upper surface of the second locking block is engaged with the locking piece.

[0020] The lower surface of the second locking block is engaged with the second locking piece.

[0021] Preferably, an outer sheath is fixedly connected to one side of the outer wall of the insulating connecting pipe, and a cable core is provided at one end of the inner wall of the outer sheath. The cable core is made of nickel-plated copper stranded wire.

[0022] The outer wall of the cable core is fitted with an insulation layer, which is woven from inorganic glass fiber.

[0023] Preferably, a reinforcing layer is provided on the outer wall of the insulating layer, and the reinforcing layer is made of FEP film material;

[0024] The outer wall of the reinforcing layer is fitted with a shielding layer, and the outer wall of the shielding layer is in contact with the inner wall of the outer sheath.

[0025] Preferably, a connector is fixedly connected to the side of the outer sheath away from the insulating connecting pipe, and a cable lug is provided on the side of the connector away from the outer sheath.

[0026] Compared with the prior art, the present invention provides a novel electromagnetic induction cable, which has the following beneficial effects:

[0027] 1. Compared with traditional electromagnetic induction cables, which often use a single bolt or clip connection and are prone to loosening due to vibration and wear, leading to poor contact, this new type of electromagnetic induction cable completely solves this problem through a multi-linkage locking structure. The rotating disc drives the locking plate and the second locking plate to lock the block in both directions, forming a double fixation in the vertical direction. The locking block of the insulating connection cover is engaged with the limiting groove of the insulating connection tube to limit radial rotation. The adjusting handle and the locking handle are tightened twice by bolts and nuts to prevent the rotating disc from loosening.

[0028] 2. Compared to traditional cables with ordinary rubber insulation and simple shielding structures that are unable to cope with harsh environments such as high temperatures and corrosion, this new electromagnetic induction cable uses multiple layers of materials to enhance protection: the cable core uses nickel-plated copper stranded wire, which improves oxidation resistance by 50%; the insulation layer uses inorganic glass fiber braiding, which extends the temperature resistance range to -60℃~200℃, far exceeding the -30℃~80℃ range of traditional rubber; and the reinforcing layer uses FEP film, which improves chemical corrosion resistance by 3 times.

[0029] 3. Compared to traditional cables, which require specialized tools for alignment and involve cumbersome assembly and disassembly processes, with single maintenance sessions taking over 30 minutes, this new electromagnetic induction cable simplifies operation through a user-friendly structural design: the adjusting handle, in conjunction with the limiting groove, enables rapid positioning of the rotating disc; the locking plate and locking block can be initially fixed without precise alignment; the parallel design of the adjusting handle and locking handle makes bolt tightening more convenient, and the entire connection process takes only 5 minutes. Taking wind power equipment as an example, traditional cable maintenance requires a 2-hour shutdown, while this device can reduce the downtime to 30 minutes. Based on an average daily power generation of 10,000 kWh per wind turbine, this can reduce annual power generation loss due to maintenance by approximately 5,000 kWh, significantly improving economic efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a cross-sectional schematic diagram of the connecting mechanism of the present invention;

[0032] Figure 3 This is a schematic diagram of the insulating connecting pipe of the present invention;

[0033] Figure 4 This is a schematic diagram of the connection mechanism of the present invention;

[0034] Figure 5 This is a schematic cross-sectional view of the cable of the present invention;

[0035] Figure 6 This is a cross-sectional schematic diagram of the present invention;

[0036] Figure 7 This is a top view of the present invention.

[0037] In the diagram: 1. Insulating connection cover; 2. Rotary disc; 3. Limiting groove; 4. Adjusting handle; 5. Arc-shaped limiting groove; 6. Locking piece; 7. Second locking piece; 8. Connecting through hole; 9. Locking handle; 10. Bolt; 11. Nut; 12. Locking block; 13. Insulating connection tube; 14. Limiting slide groove; 15. Fixing block; 16. Locking block two; 17. Outer sheath; 18. Cable core; 19. Insulation layer; 20. Reinforcing layer; 21. Shielding layer; 22. Terminal; 23. Cable lug. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figure 1-7 A novel electromagnetic induction cable includes an insulating connecting cover 1, characterized in that it also includes a connecting mechanism. The insulating connecting cover 1 serves as the basic load-bearing component for cable connection, providing insulation protection and installation space for the internal structure, while the connecting mechanism enables rapid and stable connection of various parts of the cable.

[0040] The connecting mechanism includes a rotating disk 2, a limiting groove 3, an adjusting handle 4, an arc-shaped limiting groove 5, a locking piece 6, and a second locking piece 7. This combined structure forms a complete mechanical locking system through the coordinated action of each component, providing an operable and secure core mechanism for cable connection.

[0041] A rotating disk 2 is movably connected to one end of the inner wall of the insulating connecting cover 1. A limit groove 3 is opened on one side of the outer wall of the insulating connecting cover 1. An adjusting handle 4 is provided on the outer wall of one end of the rotating disk 2. The rotating disk 2 can rotate flexibly inside the insulating connecting cover 1 to provide a power source for subsequent locking actions. The limit groove 3 limits the range of motion of the adjusting handle 4 to prevent excessive rotation from causing structural damage. The adjusting handle 4 serves as the operating end, allowing users to drive the rotating disk 2 to rotate through external control.

[0042] The adjusting handle 4 extends to one end of the outer wall of the limiting groove 3. Two arc-shaped limiting grooves 5 are provided on one side of the outer wall of the rotating disk 2, which are distributed in an annular shape. The adjusting handle 4 extends to the outside for easy manual operation. The arc-shaped limiting groove 5, through a special arc-shaped trajectory design, can convert the circular motion of the rotating disk 2 into the linear motion of the locking piece, thereby realizing the transmission and guiding function.

[0043] One end of the inner wall of the arc-shaped limiting groove 5 is movably connected to a locking piece 6 and a second locking piece 7. The top of the locking piece 6 extends to the top of the insulating connecting cover 1, and the bottom of the second locking piece 7 extends to the bottom of the insulating connecting cover 1. The arc-shaped limiting groove 5 drives the locking piece 6 and the second locking piece 7 to move synchronously, so that they extend from the top and bottom of the insulating connecting cover 1 respectively, in preparation for engagement with other components, forming a two-way locking trend.

[0044] Locking piece 6 and second locking piece 7 are parallel vertically. The length of locking piece 6 and second locking piece 7 is slightly larger than the radius of insulating connection cover 1. The parallel design ensures that the two are subjected to balanced force, and the length design ensures that they can extend out of insulating connection cover 1 and fully engage with the corresponding parts, ensuring locking depth and stability.

[0045] A connecting through hole 8 is provided on the outer wall of the rotating disk 2 near the arc-shaped limiting groove 5. The connecting through hole 8 can be used to pass through cables or fasteners to avoid internal wiring chaos and enhance the connection between the rotating disk 2 and other components.

[0046] The outer wall of one end of the insulating connection cover 1 is provided with a locking handle 9. When the adjusting handle 4 is in the closed state, it is parallel to the locking handle 9. The parallel design of the locking handle 9 and the adjusting handle 4 provides a structural basis for their fixed cooperation, ensuring that a stable connection can be formed by fasteners in the locked state.

[0047] Bolts 10 are inserted into the output ends of the locking handle 9 and the adjusting handle 4. A nut 11 is threadedly connected to the output end of the bolt 10 away from the locking handle 9. The cooperation between the bolt 10 and the nut 11 can firmly fix the adjusting handle 4 and the locking handle 9, preventing the connection mechanism from loosening due to vibration and other factors during operation, and achieving secondary reinforcement of the locked state.

[0048] The inner wall of one end of the insulating connection cover 1 is provided with two locking blocks 12 that are equidistantly distributed in a ring. The locking blocks 12 provide positioning and locking fulcrum for the connection between the insulating connection cover 1 and the insulating connection tube 13. The equidistant distribution in a ring ensures uniform force and improves the coaxiality of the connection.

[0049] An insulating connecting tube 13 is provided at one end of the insulating connecting cover 1 near the locking block 12. Two equidistant limiting grooves 14 are provided on the outer wall of one end of the insulating connecting tube 13. The insulating connecting tube 13 serves as a transition connection component between the cable body and the insulating connecting cover 1. The limiting grooves 14 provide a guiding path for the cooperation with the locking block 12.

[0050] The limiting groove 14 and the locking block 12 are engaged to achieve the initial positioning and radial fixation of the insulating connecting cover 1 and the insulating connecting tube 13, preventing relative rotation between the two and laying the foundation for subsequent deep locking.

[0051] A fixing block 15 is fixedly connected to the inner wall of the insulating connecting pipe 13. A locking block 16 is provided on the outer wall of one end of the fixing block 15. The fixing block 15 provides an installation carrier and structural support for the locking block 16. The locking block 16, as a direct snap-fit ​​component, is the key node to achieve the final locking.

[0052] The locking block 2 16 has a transverse T-shaped cross section. The upper surface of the locking block 2 16 is engaged with the locking piece 6. The T-shaped cross section design allows both the upper and lower surfaces of the locking block 2 16 to form effective engagement surfaces. The engagement with the locking piece 6 enables precise locking of the upper structure and restricts axial displacement.

[0053] The lower surface of the locking block 16 engages with the second locking piece 7, and the engagement with the second locking piece 7 achieves precise locking of the lower structure. This engagement, together with the upper engagement, forms a stable bidirectional locking structure, ensuring that the insulating connecting cover 1 and the insulating connecting tube 13 will not separate axially.

[0054] An outer sheath 17 is fixedly connected to one side of the outer wall of the insulating connecting pipe 13. A cable core 18 is provided at one end of the inner wall of the outer sheath 17. The cable core 18 is made of nickel-plated copper stranded wire. The outer sheath 17 provides mechanical protection and environmental isolation for the internal structure. The cable core 18 serves as the conductive core. The nickel-plated copper stranded wire material has both excellent conductivity and oxidation resistance, ensuring the efficient transmission of electromagnetic induction signals.

[0055] The outer wall of the cable core 18 is fitted with an insulation layer 19, which is woven from inorganic glass fiber. The insulation layer 19 achieves electrical isolation between the cable core 18 and the external structure, preventing short circuits and leakage. The inorganic glass fiber material also has high temperature resistance and wear resistance, which improves the safety of the cable.

[0056] The outer wall of the insulation layer 19 is fitted with a reinforcing layer 20, which is made of FEP film material. The reinforcing layer 20 enhances the overall structural strength of the cable and improves its tensile and compressive strength. The chemical corrosion resistance and stability of the FEP film material ensure the service life of the cable in complex environments.

[0057] The outer wall of the reinforcing layer 20 is fitted with a shielding layer 21. The outer wall of the shielding layer 21 is in contact with the inner wall of the outer sheath 17. The shielding layer 21 can effectively block external electromagnetic interference and prevent internal electromagnetic signals from leaking out, thus ensuring the purity and transmission stability of the electromagnetic induction signal.

[0058] A connector 22 is fixedly connected to the side of the outer sheath 17 away from the insulating connecting tube 13. The connector 22 is provided with a cable lug 23 on the side away from the outer sheath 17. The connector 22 provides a standardized interface for the connection between the cable and external equipment. The cable lug 23 facilitates quick and stable mechanical and electrical connection by means of bolts, etc., to ensure the reliability of the terminal connection.

[0059] Example: 1. In the application scenario of new energy vehicle charging cables, the core connection system is formed by the insulating connection cover 1, rotating disk 2, adjusting handle 4, locking piece 6, second locking piece 7, locking block 12, second locking block 16, bolt 10, and nut 11, exhibiting significant advantages. When the operator rotates the adjusting handle 4, the rotating disk 2 drives the locking piece 6 and the second locking piece 7 to move synchronously through the arc-shaped limiting groove 5, so that they respectively engage with the upper and lower surfaces of the second locking block 16 of the insulating connection tube 13. This, combined with the locking block 12 on the inner wall of the insulating connection cover 1 and the limiting slide groove 14 on the outer wall of the insulating connection tube 13, forms a double fixation of "axial bidirectional locking + radial rotation restriction". At this time, the adjusting handle 4 and the locking handle 9 are fastened by the bolt 10 and nut 11, further preventing loosening caused by vibration.

[0060] Compared to the single snap-fit ​​connection of traditional charging cables, the advantages of this combined structure are reflected in the fact that, under the continuous vibration environment during vehicle driving or charging, the displacement of the connection part is controlled within 0.1mm, which is far lower than the 1.5mm of the traditional structure. This ensures that the cable core 18 always maintains stable contact, and the energy transmission efficiency remains stable at over 98%. This solves the problem of charging interruption or sudden drop in efficiency caused by loosening of traditional cables.

[0061] 2. In signal transmission scenarios within chemical workshops, the combined structure of the cable core 18, insulation layer 19, reinforcing layer 20, shielding layer 21, and outer sheath 17 exhibits excellent adaptability. The nickel-plated copper stranded wire cable core 18 ensures low-loss electromagnetic signal transmission, while the inorganic glass fiber braided insulation layer 19 can withstand the high-temperature environment of 150°C in the workshop, avoiding the softening and cracking phenomenon that occurs in traditional rubber insulation layers above 60°C. The FEP film reinforcing layer 20 resists the erosion of corrosive gases in the workshop, and together with the shielding layer 21, effectively isolates high-frequency electromagnetic interference generated by equipment operation. The outer sheath 17 prevents mechanical collisions from damaging the internal structure.

[0062] In practical applications, the beneficial effects of this combined structure are significant: during 12 hours of continuous operation per day, the signal transmission error rate is controlled below 0.02%, far lower than the 1.2% of traditional cables; at the same time, the service life of the cable is extended to more than 5 years, which is 3 times that of traditional cables, greatly reducing the downtime maintenance costs of workshop equipment due to cable failures.

[0063] 3. In outdoor wiring scenarios for smart grids, the combined structure of the insulating connecting pipe 13, outer sheath 17, terminal block 22, and cable lug 23 simplifies the installation process and improves reliability. The terminal block 22, serving as a transition component between the outer sheath 17 and external equipment, has its cable lug 23 directly fixed to the wiring terminals of the grid equipment via bolts, allowing for alignment and installation without the need for special tools. The tight connection between the outer sheath 17 and the insulating connecting pipe 13 ensures that outdoor rainwater and dust cannot penetrate the internal structure.

[0064] Compared with the flange connection of traditional outdoor cables, the advantages of this combined structure are reflected in the following: the wiring operation can be completed by a single person, and the installation time is reduced from the traditional 40 minutes to 10 minutes; at the same time, the contact resistance of the cable lug 23 is stabilized below 0.01Ω, avoiding the local heating phenomenon caused by poor contact in traditional connections, and ensuring the continuous and stable transmission of power grid signals.

[0065] Working principle: First, when a cable needs to be connected, the rotating disk 2 on the inner wall of the insulating connection cover 1 rotates via the adjusting handle 4 on the outer wall. The adjusting handle 4 extends into the limiting groove 3 of the insulating connection cover 1, which restricts the rotation range of the adjusting handle 4. When the rotating disk 2 rotates, the two arc-shaped limiting grooves 5 (circularly distributed) on its surface synchronously drive the locking piece 6 and the second locking piece 7, which are movable on the inner wall, to move. The locking piece 6 and the second locking piece 7 are parallel vertically and their length is slightly greater than the radius of the insulating connection cover 1. When the rotating disk 2 rotates to a specified angle, the arc-shaped limiting grooves 5 push the locking piece 6 upward to the top of the insulating connection cover 1, and the second locking piece 7 downward to the bottom of the insulating connection cover 1, which just engages with the second locking block 16 (with a horizontal T-shaped cross-section) on the fixing block 15 on the inner side wall of the insulating connecting pipe 13. The locking piece 6 engages with the upper surface of the second locking block 16, and the second locking piece 7 engages with the lower surface of the second locking block 16, forming a double lock in the vertical direction, ensuring the axial fixation of the insulating connection cover 1 and the insulating connecting pipe 13. When the adjusting handle 4 rotates... When the adjustment handle 4 is in the "closed state", it is parallel to the locking handle 9 on the outer wall of the insulating connection cover 1. At this time, the bolt 10 passes through the output ends of both and is tightened with the nut 11 to lock the position of the adjustment handle 4, preventing the rotating disk 2 from loosening due to external force and further enhancing the stability of the connection mechanism. The insulating connection cover 1 is provided with an insulating connection tube 13 at one end near the locking block 12. The two limiting grooves 14 (circularly distributed) on its outer wall form a snap-fit ​​engagement with the two locking blocks 12 (circularly distributed) on the inner wall of the insulating connection cover 1. During the insertion of the insulating connecting tube 13 into the insulating connecting cover 1, the locking block 12 slides along the limiting groove 14, guiding the alignment and installation of both while restricting radial rotation. This complements the axial locking of the locking piece 6 and the second locking piece 7, ensuring the overall coaxiality of the connection structure. The cable core 18 is made of nickel-plated copper stranded wire. The nickel plating enhances oxidation resistance and conductivity, while the copper stranded wire structure enhances flexibility, ensuring efficient transmission of electromagnetic induction signals. Electromagnetic induction relies on changes in the current of a conductor to generate a magnetic field. The low resistance of the nickel-plated copper stranded wire reduces signal loss. The insulation layer 19 on the outer wall of the cable core 18 is woven from inorganic glass fiber, which has the characteristics of high temperature resistance and strong insulation, and can isolate the core from the outer structure. To prevent electrical interference, short circuits, or leakage, and to ensure the stability of the electromagnetic induction process, the reinforcing layer 20 on the outer wall of the insulation layer 19 is made of FEP film material (resistant to chemical corrosion and with high mechanical strength), which enhances the cable's tensile and compressive strength. The shielding layer 21 on the outside of the reinforcing layer 20 can isolate external electromagnetic interference and prevent external magnetic fields from affecting the core's induction signal. The outermost outer sheath 17 directly protects the internal structure from environmental wear and ultraviolet radiation, extending the cable's service life. The terminal 22 at the end of the outer sheath 17 is connected to external equipment through cable lugs 23. The lug structure facilitates bolt fixing, ensuring the conductivity and mechanical strength of the terminal connection, so that the electromagnetic induction signal can be stably output to the load equipment.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel electromagnetic induction cable comprising an insulating connecting cap (1), characterized in that, Also include connecting mechanism; The connecting mechanism includes a rotating disc (2), a limiting groove (3), an adjusting handle (4), an arc-shaped limiting groove (5), a locking piece (6), a second locking piece (7); The inner wall of the insulating connecting cover (1) is movably connected with a rotating disc (2) at one end, the outer wall of the insulating connecting cover (1) is provided with a limiting groove (3) at one side, and the outer wall of one end of the rotating disc (2) is provided with an adjusting handle (4); The adjusting handle (4) extends to one end of the outer wall of the limiting groove (3), and the outer wall of one side of the rotating disc (2) is provided with two arc-shaped limiting grooves (5) which are annularly and equidistantly distributed; The inner wall of one end of the arc-shaped limiting groove (5) is movably connected with a locking piece (6) and a second locking piece (7) respectively, the top of the locking piece (6) extends to the top of the insulating connecting cover (1), and the bottom of the second locking piece (7) extends to the bottom of the insulating connecting cover (1); The locking piece (6) and the second locking piece (7) are parallel to each other, and the lengths of the locking piece (6) and the second locking piece (7) are slightly greater than the radius of the insulating connecting cover (1); The outer wall of one side of the rotating disc (2) close to the arc-shaped limiting groove (5) is provided with a connecting through hole (8); The outer wall of one end of the insulating connecting cover (1) is provided with a locking handle (9), and the adjusting handle (4) is parallel to the locking handle (9) in the closed state; The locking handle (9) and the output end of the adjusting handle (4) are inserted with a bolt (10), and the output end of one end of the bolt (10) away from the locking handle (9) is threadedly connected with a nut (11); The inner wall of one end of the insulating connecting cover (1) is provided with two locking blocks (12) which are annularly and equidistantly distributed; The end of the insulating connecting cover (1) close to the locking block (12) is provided with an insulating connecting pipe (13), and the outer wall of one end of the insulating connecting pipe (13) is provided with two limiting sliding grooves (14) which are annularly and equidistantly distributed; The limiting sliding groove (14) and the locking block (12) are in clamping cooperation; The inner side wall of the insulating connecting pipe (13) is fixedly connected with a fixed block (15), and the outer wall of one end of the fixed block (15) is provided with a second locking block (16); The cross section of the second locking block (16) is in horizontal T shape, and the upper surface of the second locking block (16) is in clamping cooperation with the locking piece (6); The lower surface of the second locking block (16) is in clamping cooperation with the second locking piece (7).

2. A novel electromagnetic induction cable as claimed in claim 1, wherein: The outer wall of one side of the insulating connecting pipe (13) is fixedly connected with an outer sheath (17), the inner wall of one end of the outer sheath (17) is provided with a cable core (18), and the cable core (18) is made of nickel-plated copper stranded wire material; The outer wall of the cable core (18) is sleeved with an insulating layer (19), and the insulating layer (19) is woven by inorganic glass fiber.

3. A novel electromagnetic induction cable as claimed in claim 2, wherein: The outer wall of the insulating layer (19) is sleeved with a reinforcing layer (20), and the reinforcing layer (20) is made of FEP film material; The outer wall of the reinforcing layer (20) is sleeved with a shielding layer (21), and the outer wall of the shielding layer (21) is in contact with the inner wall of the outer sheath (17).

4. A novel electromagnetic induction cable as claimed in claim 2, wherein: The side of the outer sheath (17) away from the insulating connecting pipe (13) is fixedly connected with a terminal (22), and the side of the terminal (22) away from the outer sheath (17) is provided with a cable lug (23).

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