An electromagnetic interference shielded cable

Abstract

This invention provides an electromagnetic interference-resistant shielded cable, relating to the field of cable technology. It includes two adjacent cable outer sheath assemblies, an internal protective filling layer, multiple cable assemblies, a heat dissipation and flow assembly, a shielding and limiting assembly, and a cable connection assembly. This invention uses cross-linked polyethylene as the insulation material to ensure the cable's insulation performance. The heat dissipation and flow assembly allows for a through-structure within the cable, enabling sufficient flow of liquids and gases for effective heat dissipation and reducing internal heat. The hollow design significantly reduces overall weight, making it easier to use and transport. Furthermore, the first metal shielding layer isolates the cable from the external environment, and the connection between the second metal shielding layer and the arc-shaped plug-in shielding layer achieves shielding between adjacent cable assemblies, ensuring the cable's performance.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and in particular to an electromagnetic interference shielded cable. Background Technology

[0002] In modern technological development, cables play a crucial role in communication, transmission, and control systems. However, due to their physical characteristics, cables are often susceptible to physical shocks, electromagnetic interference, and other factors, which can lead to data transmission interruptions or equipment damage. Especially in high-impact and high-electromagnetic environments, such as oil extraction, military, and aerospace fields, the performance and stability of cables are of paramount importance.

[0003] Traditional cable designs often fail to provide sufficient protection in environments with high impact and high electromagnetic interference. To address this issue, researchers and engineers have tried various methods, including using higher-strength materials and increasing the number of layers and thickness of the cable. However, these methods often increase the weight and cost of the cable, and their effectiveness remains unsatisfactory in certain extreme environments.

[0004] A cable with high explosion-proof and electromagnetic interference resistance characteristics, disclosed in CN117476276B, includes a conductor core, a shielding layer, a braided layer, and an outer layer. The shielding layer utilizes an electromagnetic shielding layer braided from annealed soft copper wire to achieve high-frequency electromagnetic interference shielding. The outer layer has functional layers and adhesion layers spaced apart. The functional layers consist of two electrode layers and an actuation layer. The actuation layer is formed from two electroactive ionic polymers, which, when the cable is subjected to impact, cause the outer layer to expand or contract by applying voltage to the electrode layers, thereby changing the cable's hardness and strength. Furthermore, the electroactive ionic polymers are non-Newtonian fluids, further enabling the cable to withstand instantaneously applied impact forces.

[0005] The above technical solution can significantly improve the impact resistance of the cable, but it also increases the overall weight and generates a lot of heat during use, which can reduce the cable's service life. Therefore, improvements are needed. Summary of the Invention

[0006] To address the technical problems of increased overall weight and reduced lifespan of existing cables due to excessive internal heat generation during use, this invention provides an electromagnetic interference shielded cable.

[0007] The technical solutions provided by the embodiments of the present invention are as follows: An electromagnetic interference shielded cable provided in this embodiment of the invention includes: two adjacent cable outer sheath assemblies, an inner protective filling layer, multiple cable assemblies, a heat dissipation and flow assembly, a shielding limiting assembly, and a cable connection assembly; The cable outer sheath assembly includes an outer sheath, a wear-resistant braided layer, a first metal shielding layer, a mica tape wrapping layer, a cross-linked polyethylene insulation layer, and three arc-shaped plug-in shielding layers. The internal protective filling layer is connected to the cross-linked polyethylene insulation layer; three arc-shaped plug-in shielding layers are equally spaced and penetrate the internal protective filling layer, and the three arc-shaped plug-in shielding layers are respectively located on one side of the three arc-shaped openings; Multiple cable assemblies are disposed between the shielding and limiting component and the internal protective filling layer, and the shielding and limiting component and the internal protective filling layer are connected; The shielding and limiting assembly includes a second metal shielding layer, multiple through holes, a thermally conductive filling layer, three arc-shaped openings, a high weather-resistant pipe, multiple heat dissipation holes, and multiple arc-shaped grooves; the three arc-shaped plug-in shielding layers are all connected to the second metal shielding layer; The heat dissipation and flow component is installed throughout the shielding and limiting component, the internal protective filling layer, and the cable outer sheath component; The heat dissipation flow assembly includes an inner tube, three arc-shaped fillers, and multiple vertical tubes, the vertical tubes being connected to the cable outer sheath assembly; The cable connection assembly is disposed between two adjacent cable outer sheath assemblies, and the cable connection assembly is connected to the two cable outer sheath assemblies.

[0008] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this invention, cross-linked polyethylene is used as the insulation material to ensure the insulation performance of the cable. The use of heat dissipation and flow components allows for the formation of a through-structure within the cable, enabling the full flow of liquids and gases. This effectively dissipates heat, reducing the internal heat of the cable. Furthermore, the hollow design significantly reduces the overall weight, making it easier to use and transport. The first metal shielding layer isolates the cable from the external environment, and the connection between the second metal shielding layer and the arc-shaped plug-in shielding layer enables shielding between adjacent cable assemblies, ensuring the cable's performance. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a cross-sectional view of an anti-electromagnetic interference shielded cable provided in an embodiment of the present invention.

[0011] Figure 2This is a schematic diagram of the heat dissipation flow component in an anti-electromagnetic interference shielded cable provided in an embodiment of the present invention.

[0012] Figure 3 This is a schematic diagram of the structure of a shielding limiting component in an anti-electromagnetic interference shielded cable provided in an embodiment of the present invention.

[0013] Figure 4 This is a schematic diagram of the connection structure of two cables in an anti-electromagnetic interference shielded cable provided in an embodiment of the present invention.

[0014] Figure 5 The embodiments of the present invention are attached. Figure 4 Enlarged view of point A in the image.

[0015] Reference numerals: 1. Cable outer sheath assembly; 11. Outer sheath; 12. Abrasion-resistant braided layer; 13. First metal shielding layer; 14. Mica tape wrapping layer; 15. Cross-linked polyethylene insulation layer; 16. Arc-shaped plug-in shielding layer; 2. Internal protective filling layer; 3. Cable assembly; 4. Heat dissipation and flow assembly; 41. Arc-shaped filler; 42. Inner tube; 43. Vertical tube; 5. Shielding limiting assembly; 51. Second metal shielding layer; 52. Through hole; 53. Thermally conductive filling layer; 54. Arc-shaped opening; 55. High weather-resistant tube; 56. Heat dissipation hole; 57. Arc-shaped groove; 6. Cable connection assembly; 61. Extrusion ring; 62. Screw assembly; 63. Conical ring assembly; 64. Conical extrusion assembly; 65. Cable connection plug; 66. Synchronous gear assembly; 67. Adjusting gear assembly; 68. Lead screw and nut assembly; 69. Fixing ring assembly; 610. Protective tube.

[0016] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0017] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0018] like Figures 1 to 5 As shown, an embodiment of the present invention provides an anti-electromagnetic interference shielded cable, comprising: two adjacent cable outer sheath assemblies 1, an inner protective filling layer 2, multiple cable assemblies 3, a heat dissipation flow assembly 4, a shielding limiting assembly 5, and a cable connection assembly 6; The cable outer sheath assembly 1 includes an outer sheath 11, a wear-resistant braided layer 12, a first metal shielding layer 13, a mica tape wrapping layer 14, a cross-linked polyethylene insulation layer 15, and three arc-shaped plug-in shielding layers 16. The inner protective filling layer 2 is connected to the cross-linked polyethylene insulation layer 15; three arc-shaped plug-in shielding layers 16 are equally spaced and penetrate the inner protective filling layer 2, and the three arc-shaped plug-in shielding layers 16 are respectively located on one side of the three arc-shaped openings 54, and all three arc-shaped plug-in shielding layers 16 are connected to the second metal shielding layer 51. Multiple cable assemblies 3 are disposed between the shielding and limiting assembly 5 and the internal protective filling layer 2, and the shielding and limiting assembly 5 and the internal protective filling layer 2 are connected. The shielding and limiting component 5 includes a second metal shielding layer 51, multiple through holes 52, a thermally conductive filling layer 53, three arc-shaped openings 54, a high weather-resistant pipe 55, multiple heat dissipation holes 56, and multiple arc-shaped grooves 57. Three arc-shaped plug-in shielding layers 16 and a second metal shielding layer 51 form three protective spaces to divide multiple cable assemblies 3 into three groups and perform shielding operations separately. At the same time, the arc-shaped plug-in shielding layers 16 can cooperate with 51 to form a separate shielding space to avoid mutual interference between cable assemblies 3.

[0019] The heat dissipation flow component 4 is disposed throughout the shielding and limiting component 5, the internal protective filling layer 2, and the cable outer sheath component 1. The heat dissipation flow assembly 4 includes an inner tube 42, three arc-shaped fillers 41 and multiple vertical tubes 43, and the vertical tubes 43 are connected to the cable outer sheath assembly 1; The cable connection assembly 6 is disposed between two adjacent cable outer sheath assemblies 1, and the cable connection assembly 6 is connected to the two cable outer sheath assemblies 1.

[0020] It should be noted that the present invention can fully realize heat dissipation inside the cable, effectively reduce the heat in the center of the cable, and prevent heat from affecting the operation of the cable; it can also achieve shielding from the external environment and shielding between adjacent cable assemblies 3 inside the cable, thereby ensuring the operation of the cable; at the same time, the hollow design reduces the weight of the cable, making it easier to handle and use.

[0021] Furthermore, the outer sheath 11 is the outermost layer of the cable outer sheath assembly 1, the wear-resistant braided layer 12 is fixedly connected to the inner wall of the outer sheath 11, the first metal shielding layer 13 is fixedly connected to the inner wall of the wear-resistant braided layer 12, the mica tape wrapping layer 14 is fixedly connected to the inner wall of the first metal shielding layer 13, and the cross-linked polyethylene insulation layer 15 is fixedly connected to the inner wall of the mica tape wrapping layer 14.

[0022] It should be noted that the outer sheath 11 has excellent weather resistance and wear resistance, and can be equipped with corresponding functions according to the usage environment. For example, when used in northern regions, it can be equipped with functions such as cold resistance and crack prevention, and has good insulation performance, which helps to improve the safety of use. The wear-resistant braided layer 12 can improve wear resistance. The first metal shielding layer 13 is made of metal wire braided into a network and is sleeved inside the cable outer sheath assembly 1, so that the cable outer sheath assembly 1 has a shielding function to avoid interference from the external environment. The mica tape wrapping layer 14 ensures safety by wrapping. The cross-linked polyethylene insulation layer 15 can further improve the insulation performance.

[0023] In one possible implementation, a plurality of arc-shaped grooves 57 are equally spaced through the periphery of the thermally conductive filling layer 53, the second metal shielding layer 51 is installed on the periphery of the thermally conductive filling layer 53, the high weather-resistant pipe 55 is disposed through the thermally conductive filling layer 53, and a plurality of heat dissipation holes 56 are equally spaced through the thermally conductive filling layer 53. The plurality of heat dissipation holes 56 are located between a plurality of cable assemblies 3 so as to dissipate heat accumulated inward, thereby effectively reducing the heat inside the overall cable. The heat dissipation holes 56 are disposed between the arc-shaped opening 54 and the high weather-resistant pipe 55; three arc-shaped openings 54 are equally spaced through the thermally conductive filling layer 53. Multiple through holes 52 are equally spaced through the thermally conductive filling layer 53, the second metal shielding layer 51, the inner protective filling layer 2, and the cable outer sheath assembly 1. The through holes 52 are through the outer sheath 11, and the edges of the through holes 52 on the outer side of the outer sheath 11 are chamfered. The second metal shielding layer 51 is connected to the inner protective filling layer 2; The cable assembly 3 is connected to the second metal shielding layer 51 and the internal protective filling layer 2.

[0024] It should be noted that, in actual production and manufacturing, the internal protective filling layer 2 can be made of flexible filling material to complete the connection between the cable outer sheath assembly 1 and the shielding limiting assembly 5, and a protruding structure is provided on the inner wall of the cross-linked polyethylene insulation layer 15 and the outer side of the second metal shielding layer 51 to improve the connection strength. Meanwhile, the multiple heat dissipation holes 56 within the thermally conductive filling layer 53 can be divided into three groups. Each group of heat dissipation holes 56 has an arc-shaped opening 54 on its outer side. The arc-shaped opening 54 consists of an arc-shaped opening and a through opening. An arc-shaped groove 57 is provided between two adjacent through openings so that the cable assembly 3 can be installed into the arc-shaped groove 57. The structure of the arc-shaped groove 57 can adopt a structure larger than 1 / 2 circle, which can form a locking structure and improve the locking effect on the cable assembly 3. The hollow structure of the heat dissipation holes 56 and the arc-shaped opening 54 can achieve the effects of weight reduction and cost reduction, and can also play a role in heat dissipation. Furthermore, the through hole 52 allows it to be connected to the heat dissipation flow component 4, thereby enabling the vertical pipe 43 to be installed through the through hole 52 to complete the flow of gas and achieve rapid cooling.

[0025] In one possible implementation, the inner tube 42 is disposed through the high weather-resistant tube 55, and the three arc-shaped fillers 41 are equally fixed to the inner wall of the inner tube 42. Multiple vertical pipe fittings 43 are equally spaced through the inner pipe fitting 42; The plurality of the vertical tubes 43 are respectively installed through the plurality of through holes 52; The vertical tube 43 is integrally formed with the inner tube 42 and the wear-resistant braided layer 12; the arc-shaped filler 41 is arranged in an arc shape.

[0026] It should be noted that the arc-shaped design of the arc-shaped filler 41 effectively prevents water from remaining in the inner tube 42, allowing water to flow fully through the arc-shaped filler 41 to the multiple vertical tubes 43 on both sides of the arc-shaped filler 41. This ensures that gas and water can flow inside the cable, carrying away the heat inside the cable. Furthermore, the integral molding of the vertical tubes 43, the inner tube 42, and the wear-resistant braided layer 12 ensures the sealing of the connection, preventing leakage and ensuring the safety of water and gas flow, thus improving the safety of cable use.

[0027] In one possible implementation, the cable connection assembly 6 includes two compression rings 61, multiple screw components 62, two conical ring components 63, two conical compression components 64, a cable connection plug 65, multiple synchronizing gear components 66, adjusting gear components 67, multiple lead screw nut components 68, four fixing ring components 69, and a protective tube 610. The cable connector 65 is fixed in the middle of the protective tube 610, the two cable outer sheath assemblies 1 pass through both ends of the protective tube 610 respectively, and the cable assembly 3 is connected to the protective tube 610. The two conical extrusion members 64 are respectively fixed at both ends inside the protective tube 610, and the four fixing ring members 69 are in pairs, with the two sets of fixing ring members 69 respectively fixed at both ends of the protective tube 610; Multiple lead screw nut components 68 are rotatably sleeved on two sets of fixed ring components 69 at equal intervals; The plurality of screw components 62 are respectively threaded onto both ends of the plurality of lead screw nut components 68, and the plurality of screw components 62 are slidably sleeved on two sets of fixing ring components 69; A plurality of screw members 62 located on the same side and an extrusion ring 61 on the same side thereon are fixedly connected, and two screw members 62 are respectively fixed on opposite sides of two extrusion rings 61; The adjusting gear 67 is rotatably sleeved on the protective tube 610, and the plurality of synchronizing gears 66 are respectively fixed on the plurality of lead screw and nut parts 68, and the plurality of synchronizing gears 66 mesh with the adjusting gear 67.

[0028] It should be noted that during connection, the outer sheaths of two adjacent cables are stripped at opposite ends to expose the cable assembly 3. At the same time, the outer sheaths of the cables are inserted into both ends of the protective tube 610, so that the cable assembly 3 inside the cable is connected to the cable connector 65. The cable assemblies 3 of the two cables are respectively inserted into both ends of the cable connector 65, and the connection is ensured to be firm. The connection between the two cables can be achieved through the cable connector 65. Furthermore, by rotating the adjusting gear 67, the synchronous gear 66 can drive the screw nut 68 fixed thereto to rotate. When the screw nut 68 rotates, the two screw rods 62 passing through its two ends will move in opposite directions. The screw nut 68 is designed with threads at both ends to ensure that when the screw nut 68 rotates in both directions, the two screw rods 62 will move relative to each other or separate in opposite directions. The movement of the screw rods 62 can cause the two compression rings 61 to move in opposite directions. When the two compression rings 61 move relative to each other, the conical ring 63 can be inserted into the conical compression member 64. The conical compression member 64 can compress the conical ring 63 so that the conical ring 63 and the outer side of the cable outer sheath assembly 1 come into contact, ensuring the sealing of the connection. In actual production and processing, two nut components can be threaded onto the screw component 62, and the nut components can be positioned between the two fixing ring components 69. The two nut components abut against the opposite side of the two fixing ring components 69 respectively, ensuring the stability of the position of the conical ring component 63. A screw clamping mechanism can also be set on the side of the extrusion ring 61 away from the conical ring component 63. That is, multiple plates are set at equal intervals on the extrusion ring 61, and screw components are threaded onto the plates. The end of the screw close to the cable is rotatably connected to the clamping arc plate to effectively fix the cable.

[0029] In one possible implementation, the two ends of the lead screw nut 68 are respectively rotatably sleeved on the two middle fixed rings 69 of the two sets of fixed rings 69; the conical ring 63 and the conical extrusion 64 are both made of rubber material; the fixed ring 69, the protective tube 610, the screw 62 and the cable connector 65 are integrally formed.

[0030] It should be noted that the one-piece molding method ensures the firmness of the connection, and the cable connector 65 can correspond to the cable assembly 3 inside the cable outer sheath assembly 1, so that the cable assembly 3 can be quickly inserted into the cable connector 65 to complete the connection between the cable assemblies 3, which helps to ensure the quality of cable use. At the same time, the tapered ring 63, under the action of the tapered extrusion member 64, will fully compress and contact the cable outer sheath assembly 1 to complete the sealing effect between the tapered ring 63 and the cable outer sheath assembly 1. Moreover, drainage and venting holes can be equally spaced through the tapered extrusion member 64 and the screw member 62 to facilitate the rapid discharge of water and prevent seepage.

[0031] In summary, the electromagnetic interference shielded cable designed in this invention ensures stable cable operation while enabling the cable to be installed through the middle through the cooperation of the heat dissipation flow component 4 and the shielding limiting component 5. The hollow cavity, under the action of the vertical pipe component 43, achieves weight reduction and allows for the flow of gas or liquid to dissipate heat within the cable. Furthermore, the integrated design prevents penetration, protecting the stable operation of the cable assembly 3. A double shielding scheme is also employed to achieve both external and internal shielding. Simultaneously, it enables the connection between adjacent cables, ensuring a sealed and secure connection and preventing penetration.

[0032] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this invention, the use of heat dissipation flow component 4 enables the formation of a through structure within the cable, allowing for the full flow of liquids and gases. This effectively dissipates heat, reducing the internal heat of the cable. Furthermore, the hollow design significantly reduces the overall weight, making it easier to use and transport. The first metal shielding layer 13 isolates the cable from the external environment, while the second metal shielding layer 51 provides shielding between adjacent cable assemblies 3, ensuring the cable's performance.

[0033] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An electromagnetic interference-resistant shielded cable, characterized in that, include: Two adjacent cable outer sheath assemblies, an inner protective filling layer, multiple cable assemblies, a heat dissipation and flow assembly, a shielding and limiting assembly, and a cable connection assembly; The cable outer sheath assembly includes an outer sheath, a wear-resistant braided layer, a first metal shielding layer, a mica tape wrapping layer, a cross-linked polyethylene insulation layer, and three arc-shaped plug-in shielding layers. The internal protective filling layer is connected to the cross-linked polyethylene insulation layer; three arc-shaped plug-in shielding layers are equally spaced and penetrate the internal protective filling layer, and the three arc-shaped plug-in shielding layers are respectively located on one side of the three arc-shaped openings; Multiple cable assemblies are disposed between the shielding and limiting component and the internal protective filling layer, and the shielding and limiting component and the internal protective filling layer are connected; The shielding and limiting assembly includes a second metal shielding layer, multiple through holes, a thermally conductive filling layer, three arc-shaped openings, a high weather-resistant pipe, multiple heat dissipation holes, and multiple arc-shaped grooves; the three arc-shaped plug-in shielding layers are all connected to the second metal shielding layer; The heat dissipation and flow component is installed throughout the shielding and limiting component, the internal protective filling layer, and the cable outer sheath component; The heat dissipation flow assembly includes an inner tube, three arc-shaped fillers, and multiple vertical tubes, the vertical tubes being connected to the cable outer sheath assembly; The cable connection assembly is disposed between two adjacent cable outer sheath assemblies, and the cable connection assembly is connected to the two cable outer sheath assemblies.

2. The electromagnetic interference shielded cable according to claim 1, characterized in that, The outer sheath is the outermost layer of the cable outer sheath assembly. The wear-resistant braided layer is fixedly connected to the inner wall of the outer sheath. The first metal shielding layer is fixedly connected to the inner wall of the wear-resistant braided layer. The mica tape wrapping layer is fixedly connected to the inner wall of the first metal shielding layer. The cross-linked polyethylene insulation layer is fixedly connected to the inner wall of the mica tape wrapping layer.

3. The electromagnetic interference shielded cable according to claim 2, characterized in that, Multiple arc-shaped grooves are equally spaced through the perimeter of the thermally conductive filling layer, the second metal shielding layer is installed on the perimeter of the thermally conductive filling layer, the high weather-resistant pipe is through the thermally conductive filling layer, multiple heat dissipation holes are equally spaced through the thermally conductive filling layer, and three arc-shaped openings are equally spaced through the thermally conductive filling layer. Multiple through holes are equally spaced and disposed throughout the thermally conductive filling layer, the second metal shielding layer, the inner protective filling layer, and the cable outer sheath assembly. The second metal shielding layer and the inner protective filling layer are connected; The cable assembly is connected to the second metal shielding layer and the internal protective filling layer.

4. The electromagnetic interference shielded cable according to claim 3, characterized in that, The inner tube is installed through the high weather-resistant tube, and the three arc-shaped fillers are fixed equally to the inner wall of the inner tube. Multiple vertical pipes are equally spaced and inserted through the inner pipe. Multiple vertical pipe components are respectively installed through multiple through holes; The vertical pipe fitting is integrally formed with the inner pipe fitting and the wear-resistant braided layer.

5. The electromagnetic interference shielded cable according to claim 4, characterized in that, The arc-shaped filler is arranged in an arc shape.

6. The electromagnetic interference shielded cable according to claim 5, characterized in that, The cable connection assembly includes two extrusion rings, multiple screw components, two conical ring components, two conical extrusion components, a cable connection plug, multiple synchronizing gear components, adjusting gear components, multiple lead screw and nut components, four fixing ring components, and a protective tube; The cable connector is fixed in the middle of the protective tube, and the two cable outer sheath assemblies pass through both ends of the protective tube respectively. The cable assembly and the protective tube are connected. The two conical extrusion members are respectively fixed at both ends inside the protective tube, and the four fixing rings are in pairs, with the two sets of fixing rings respectively fixed at both ends of the protective tube; Multiple lead screw nut components are rotatably sleeved on two sets of fixed ring components at equal intervals; The plurality of screw components are respectively threaded onto both ends of the plurality of lead screw nut components, and the plurality of screw components are slidably sleeved on two sets of fixing ring components; Multiple screw components located on the same side and extrusion rings on the same side thereon are fixedly connected, with two screw components respectively fixed on opposite sides of the two extrusion rings; The adjusting gear is rotatably sleeved on the protective tube, and multiple synchronizing gears are respectively fixed on multiple lead screw and nut components, with all multiple synchronizing gears meshing with the adjusting gear.

7. The electromagnetic interference shielded cable according to claim 6, characterized in that, The two ends of the lead screw nut are respectively rotatably sleeved on the two fixed rings located in the middle of the two sets of fixed rings; the conical ring and the conical extrusion are both made of rubber material.

8. The electromagnetic interference shielded cable according to claim 7, characterized in that, The through hole is disposed through the outer protective layer, and the through hole is located at the chamfered edge of the outer side of the outer protective layer.

9. The electromagnetic interference shielded cable according to claim 8, characterized in that, The heat dissipation hole is located between the arc-shaped opening and the high weather-resistant pipe fitting.

10. The electromagnetic interference shielded cable according to claim 9, characterized in that, The fixing ring, the protective tube, the screw, and the cable connector are integrally formed.

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