Combined cable of asymmetrically layered decoupling shielded communication power

Abstract

This invention discloses an asymmetric layered decoupling shielded combined communication and power cable, relating to the field of communication cable technology. It includes a sheath tube, inside which a filler layer is embedded. Inside the filler layer are a tin-plated copper braided sleeve and a wave-absorbing decoupling isolation layer. A tin foil shielding tube is fixedly installed inside the tin foil shielding tube, and two insulating sleeves are symmetrically installed inside the tin foil shielding tube. The combination of the wave-absorbing decoupling isolation layer, the tin foil shielding tube, the aluminum foil shielding layer, and the copper strip shielding layer, along with a phase-mismatched twisting method, ensures anti-interference during use, avoids harmonic resonance, and not only provides physical isolation but also absorbs stray electromagnetic waves generated by power lines, preventing secondary interference to signal transmission caused by electromagnetic wave reflection. This combination of communication and power reduces space costs.

Description

Technical Field

[0001] This invention relates to the field of communication cable technology, specifically to an asymmetric layered decoupled shielded combined communication power cable. Background Technology

[0002] A power cable is a cable used to transmit telephone, telegram, fax documents, television and radio programs, data, and other electrical signals. A communication cable is made of one or more insulated conductors twisted together. Compared with overhead open lines, communication cables have advantages such as large communication capacity, high transmission stability, good confidentiality, and less susceptibility to natural conditions and external interference. A communication cable is a communication line consisting of a core made of multiple insulated conductors twisted together and an outer sheath that protects the core from moisture and mechanical damage. In particularly harsh environments, a protective layer can be installed outside the sheath of the communication cable if necessary. A communication line consisting of a core made of multiple insulated conductors twisted together and an outer sealed sheath, some of which have an outer sheath, can be laid in various ways such as overhead, direct burial, pipeline, and underwater. According to structure, they are divided into symmetrical, coaxial, and composite cables. According to function, they are divided into field and permanent cables (underground and submarine cables). Communication cables have a wide transmission bandwidth, large communication capacity, and are less susceptible to external interference, but are not easy to maintain. They can transmit telephone, telegram, data, and images. When using cables, a combination of communication and power cables is required.

[0003] However, the composite cables currently on the market cannot absorb stray electromagnetic waves generated by power lines in actual use, nor can they avoid secondary interference to signal transmission caused by electromagnetic wave reflection, which affects the normal use of the cable and reduces its ease of use. Summary of the Invention

[0004] The purpose of this invention is to provide an asymmetric layered decoupled shielded communication power cable to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an asymmetric layered decoupling shielded communication power cable, comprising a sheath tube, wherein a filling layer is embedded inside the sheath tube, and a tin-plated copper braided sleeve and a wave-absorbing decoupling isolation layer are respectively embedded inside the filling layer; a tin foil shielding tube is fixedly installed inside the tin-plated copper braided sleeve, and two insulating sleeves are symmetrically installed inside the tin foil shielding tube, with a first oxygen-free copper conductor embedded inside the insulating sleeve. The wave-absorbing decoupling isolation layer, the tin-plated copper braided sleeve, and the tin foil shielding tube work together to form an outer electromagnetic shielding system, and suppresses and absorbs electromagnetic interference generated during power line transmission through phase mismatch twisting, thereby achieving anti-interference transmission of communication signals.

[0006] Preferably, the sheath is made of LSZH material and the insulating sleeve is made of HDPE material to provide good flame retardancy, corrosion resistance and electrical insulation performance; the insulating sleeve is made of HDPE material and there are four tin foil shielding tubes, which are arranged in a circumferential array inside the tin-plated copper braided sleeve.

[0007] Preferably, the microwave absorbing decoupling isolation layer is embedded with an aluminum foil shielding layer, which in turn is embedded with a copper strip shielding layer. A protective tube is inserted inside the copper strip shielding layer, and a second oxygen-free copper wire is embedded inside the protective tube. The aluminum foil shielding layer, the copper strip shielding layer, and the protective tube together constitute a multi-layer composite shielding system for shielding communication signals and isolating external electromagnetic interference. The protective tube is made of XLPE material, and there are three protective tubes. The three protective tubes are arranged in a circumferential array inside the copper strip shielding layer, and a reinforcing rod is inserted between the three protective tubes. The reinforcing rod is made of FRP material, i.e., fiber reinforced composite material.

[0008] By using a combination of a wave-absorbing decoupling isolation layer, a tin foil shielding tube, an aluminum foil shielding layer, and a copper strip shielding layer, along with a phase mismatch twisting method, the system achieves anti-interference during use, avoids harmonic resonance, and not only provides physical isolation but also absorbs stray electromagnetic waves generated by power lines, preventing electromagnetic wave reflections from causing secondary interference to signal transmission. This combination of communication and power systems reduces space costs.

[0009] Preferably, the sheath tube is provided with an independent grounding conductor inside, which is inserted inside the filler layer to facilitate grounding of the cable, release accumulated charge, and ensure safe use.

[0010] By setting up an independent grounding conductor, it is convenient to perform grounding operations during use, which also facilitates subsequent use.

[0011] Preferably, a connecting component is provided on one side of the sheath tube, a snap-fit ​​positioning component is provided on one side of the connecting component, a connector is provided on one side of the snap-fit ​​positioning component, and a connecting tube is rotatably connected to one side of the connector via a sealed bearing, which facilitates connection with external equipment. The connecting component includes a tapered positioning tube sleeved on the surface of the sheath tube, a threaded ring connected to the surface of the tapered positioning tube, and a limiting plate fixedly installed inside the tapered positioning tube. The first oxygen-free copper wire and the second oxygen-free copper wire both pass through the limiting plate and extend to the outside of the limiting plate. A wire hole is opened on the limiting plate for the oxygen-free copper wire to pass through, and the inner wall of the wire hole is slidably connected to the surface of the wire.

[0012] The cable's connection and snap-fit ​​positioning components facilitate connection and positioning during use, making cable connection easier and subsequent connection operations more convenient. This enhances the cable's usability and makes it easier for users to use in the future.

[0013] Preferably, the snap-fit ​​positioning assembly includes a plug tube fixedly installed at one end of the first oxygen-free copper wire, a connecting rod inserted at one end of the plug tube, and one end of the connecting rod fixedly connected to one end of the connector to form an electrical path and assist in positioning. A snap-fit ​​block is fixedly installed at one end of the second oxygen-free copper wire.

[0014] Preferably, the card block is provided with a compression connection assembly inside. The compression connection assembly includes a card slot opened on one side of the card block. Arc-shaped spring pieces are fixedly installed on both sides of the inner wall of the card slot. A guide rod is fixedly installed on the inner bottom wall of the card slot. A tapered rod is fixedly installed at one end of the guide rod for guiding and triggering the connection action. A compression block is provided inside the card slot. One side of the compression block is fixedly connected to one side of the connector head for moving together with the connector head and triggering the linkage mechanism of the compression connection assembly.

[0015] The curved spring clip facilitates compression and positioning during use, thus maintaining the stability of the component installation. The tapered rod design also facilitates compression operations, thereby ensuring stable cable connection.

[0016] Preferably, the bottom of the extrusion block is provided with a circular hole and a storage cavity on both sides. A conical arc plate is provided inside the circular hole. An extrusion rod is fixedly installed on one side of the conical arc plate. One end of the extrusion rod passes through the extrusion block and extends into the storage cavity. A frustum plate is fixedly installed on the end of the extrusion rod inside the storage cavity. The conical arc plate is used to contact and slide with the guide rod or conical rod during assembly, thereby converting the axial insertion force into a force that drives the extrusion rod to move horizontally.

[0017] The conical arc plate facilitates the limiting and insertion during use, and also makes it easy to position and squeeze the component during subsequent use. This maintains the ease of use of the component and improves its stability.

[0018] Preferably, a return spring is arranged around the surface of the extrusion rod. One end of the return spring is fixedly connected to one side of the inner wall of the receiving cavity, and the other end of the return spring is fixedly connected to one side of the extrusion block. The extrusion block has a rod hole that connects the circular hole to the receiving cavity. The surface of the extrusion rod is slidably connected to the inner wall of the rod hole to provide a return force for the extrusion rod when the connector is pulled out or detached.

[0019] The included reset spring facilitates easy reset during use, maintaining the component's ease of use and enabling subsequent automatic reset.

[0020] Preferably, abutment rods are inserted on both sides of the inner wall of the receiving cavity. One end of the abutment rod abuts against one side of the arc-shaped spring sheet. A triangular block is fixedly installed on one side of the abutment rod located on the inner wall of the receiving cavity. The two sides of the triangular block contact one side of the frustum plate on both sides, which is used to transmit the internal horizontal movement to the external arc-shaped spring sheet, causing it to undergo elastic deformation. When the frustum plate moves horizontally with the extrusion rod, its inclined surface will squeeze the triangular block, thereby pushing the abutment rod to move outward. Both sides of the extrusion block are provided with through holes for the abutment rod to pass through. The inner wall of the through hole is slidably connected to the surface of the abutment rod.

[0021] By setting up a compression connection component, the connector head can be automatically compressed and clamped after being inserted during use, facilitating subsequent connection and insertion operations. This also maintains the connection stability of the cable, making it easier to use and improving the convenience of subsequent connection operations.

[0022] Compared with the prior art, the beneficial effects of the present invention are: This type of asymmetric layered decoupled shielded communication and power cable, through the setting of a wave-absorbing decoupling isolation layer, a tin foil shielding tube, an aluminum foil shielding layer, and a copper tape shielding layer, combined with a phase mismatch twisting method, achieves anti-interference effect during use, avoids harmonic resonance, not only provides physical isolation, but also absorbs stray electromagnetic waves generated by power lines, and avoids secondary interference to signal transmission caused by electromagnetic wave reflection. It combines communication and power, and reduces space costs.

[0023] This type of asymmetric layered decoupled shielded communication power cable, through its set connection components and snap-fit ​​positioning components, facilitates connection and positioning operations during use, thereby simplifying cable connection and subsequent connection operations, improving the cable's ease of use, and thus making it more convenient for subsequent use.

[0024] This type of asymmetric layered decoupled shielded communication power cable, through the setting of a compression connection component, facilitates automatic compression and clamping of the connector after it is inserted during use, which is convenient for subsequent connection and insertion operations. At the same time, it also maintains the connection stability of the cable, making it convenient for subsequent use and improving the ease of connection of the cable, thus making it easier for subsequent staff to use.

[0025] The present invention has a more reasonable structural design and is convenient and reliable to use. Attached Figure Description

[0026] Figure 1 This is a first-view three-dimensional structural diagram of the present invention; Figure 2 This is a second-view three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the three-dimensional connection structure between the extrusion block and the guide rod of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the extrusion block of the present invention; Figure 6 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 7 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B.

[0027] In the diagram: 1. Sheath; 2. Filler layer; 3. Tinned copper braided sleeve; 4. Wave-absorbing decoupling isolation layer; 5. Tin foil shielding tube; 6. Insulating sleeve; 7. First oxygen-free copper conductor; 8. Aluminum foil shielding layer; 9. Copper strip shielding layer; 10. Protective tube; 11. Second oxygen-free copper conductor; 12. Reinforcing rod; 13. Independent grounding conductor; 14. Connecting assembly; 1400. Conical positioning tube; 1401. Threaded ring; 1402. Limiting plate; 15. Snap-fit ​​positioning. Components; 1500, Insert pipe; 1501, Connecting rod; 1502, Locking block; 16, Connector; 17, Press-fit connection assembly; 1700, Arc-shaped spring; 1701, Guide rod; 1702, Conical rod; 1703, Press-fit block; 1704, Receiving cavity; 1705, Press-fit rod; 1706, Frustum plate; 1707, Abutting rod; 1708, Triangular block; 1709, Return spring; 1710, Conical arc plate; 18, Connecting pipe. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described in conjunction with the embodiments and accompanying drawings.

[0029] See Figures 1-7 The present invention provides an asymmetric layered decoupling shielded communication power cable, including a sheath tube 1, a filling layer 2 embedded inside the sheath tube 1, and a tin-plated copper braided sleeve 3 and a wave-absorbing decoupling isolation layer 4 embedded inside the filling layer 2.

[0030] A tin foil shielding tube 5 is fixedly installed inside the tin-plated copper braided sleeve 3. Two insulating sleeves 6 are symmetrically installed inside the tin foil shielding tube 5. The first oxygen-free copper wire 7 is embedded inside the insulating sleeve 6.

[0031] See Figure 6The sheath 1 is made of LSZH material, and the insulating sleeve 6 is made of HDPE material. There are four tin foil shielding tubes 5 arranged in a circular array inside the tin-plated copper braided sleeve 3. An aluminum foil shielding layer 8 is embedded inside the wave-absorbing decoupling isolation layer 4. A copper strip shielding layer 9 is embedded inside the aluminum foil shielding layer 8. A protective tube 10 is inserted inside the copper strip shielding layer 9, and a second oxygen-free copper conductor 11 is embedded inside the protective tube 10. Three protective tubes 10 are made of XLPE material and arranged in a circular array inside the copper strip shielding layer 9. A reinforcing rod 12 is inserted between the three protective tubes 10. 2. Made of FRP material, i.e., fiber reinforced composite material, it features a wave-absorbing decoupling isolation layer 4, a tin foil shielding tube 5, an aluminum foil shielding layer 8, and a copper strip shielding layer 9. Combined with a phase-mismatched twisting method, it achieves anti-interference effect during use, avoids harmonic resonance, and not only provides physical isolation but also absorbs stray electromagnetic waves generated by power lines, preventing secondary interference to signal transmission caused by electromagnetic wave reflection. It combines communication and power, reduces space costs, and has an independent grounding conductor 13 inside the sheath tube 1. The independent grounding conductor 13 is inserted inside the filling layer 2, which facilitates grounding during use and also facilitates subsequent use.

[0032] See Figure 1 and Figure 3 A connecting component 14 is provided on one side of the sheath tube 1, a snap-fit ​​positioning component 15 is provided on one side of the connecting component 14, and a connector 16 is provided on one side of the snap-fit ​​positioning component 15. A connecting tube 18 is rotatably connected to one side of the connector 16 via a sealed bearing. The connecting component 14 includes a tapered positioning tube 1400 sleeved on the surface of the sheath tube 1. A threaded ring 1401 is threaded onto the surface of the tapered positioning tube 1400. A limiting plate 1402 is fixedly installed inside the tapered positioning tube 1400. The first oxygen-free copper wire 7 and the second oxygen-free copper wire 11 both pass through the limiting plate 1402 and extend to the outside of the limiting plate 1402. A supply for oxygen-free copper wire 7 is provided on the limiting plate 1402. The oxygen-free copper wire passes through a wire hole, and the inner wall of the wire hole is slidably connected to the surface of the wire. The connection component 14 and the snap-fit ​​positioning component 15 are provided to facilitate connection and positioning operations during use, thereby facilitating the connection operation of the cable and subsequent connection operations, improving the ease of use of the cable and making it convenient for subsequent use. The snap-fit ​​positioning component 15 includes a plug tube 1500 fixedly installed at one end of the first oxygen-free copper wire 7, and a connecting rod 1501 inserted at one end of the plug tube 1500. One end of the connecting rod 1501 is fixedly connected to one end of the connector 16. A snap-fit ​​block 1502 is fixedly installed at one end of the second oxygen-free copper wire 11.

[0033] See Figure 4 , Figure 5 and Figure 7 The clamping block 1502 has an internal compression connection assembly 17. The compression connection assembly 17 includes a groove on one side of the clamping block 1502. Arc-shaped spring pieces 1700 are fixedly installed on both sides of the inner wall of the groove. A guide rod 1701 is fixedly installed on the inner bottom wall of the groove. A tapered rod 1702 is fixedly installed at one end of the guide rod 1701. An compression block 1703 is located inside the groove. One side of the compression block 1703 is fixedly connected to one side of the connector 16. The arc-shaped spring pieces 1700 are also present. The tapered rod 1702 facilitates compression and positioning during use, thus maintaining the stability of the component's installation. This design also ensures stable cable connection. The compression block 1703 has round holes and receiving cavities 1704 on both sides of its bottom. A tapered arc plate 1710 is installed inside the round hole, and a compression rod 1705 is fixedly mounted on one side of the tapered arc plate 1710. One end of the compression rod 1705 passes through the compression block 1703. The compression rod 1705 extends into the storage cavity 1704. A frustum plate 1706 is fixedly installed at one end of the compression rod 1705 inside the storage cavity 1704. A conical arc plate 1710 is provided for easy positioning and insertion during use, facilitating subsequent positioning and compression operations. This maintains the ease of use of the component and improves its stability. A return spring 1709 is arranged around the surface of the compression rod 1705. One end of the return spring 1709 is fixedly connected to one side of the inner wall of the storage cavity 1704, and the other end is fixedly connected to one side of the compression block 1703. The compression block 1703 has a rod hole that connects the circular hole to the storage cavity 1704. The surface of the compression rod 1705 is slidably connected to the inner wall of the rod hole. The return spring 1709 facilitates reset operations during use, maintaining the ease of use of the component and also facilitating subsequent automatic reset operations.

[0034] Abutment rods 1707 are inserted into both sides of the inner wall of the storage cavity 1704. One end of the abutment rod 1707 abuts against one side of the arc-shaped spring piece 1700. A triangular block 1708 is fixedly installed on one side of the inner wall of the storage cavity 1704. The two sides of the triangular block 1708 contact one side of the two frustum plates 1706. Both sides of the extrusion block 1703 have through holes for the abutment rods 1707 to pass through. The inner wall of the through hole is slidably connected to the surface of the abutment rod 1707. An extrusion connection component 17 is provided. During use, when the connector 16 is inserted, it is convenient to automatically extrude and clamp it, which facilitates subsequent connection and insertion operations. It also maintains the connection stability of the cable and facilitates subsequent use. Therefore, it is convenient for subsequent connection operations, improves the connection convenience of the cable, and facilitates the use of subsequent personnel.

[0035] Working Principle: During use, the wave-absorbing decoupling isolation layer 4, tin foil shielding tube 5, aluminum foil shielding layer 8, and copper tape shielding layer 9, combined with a phase-mismatched twisting method, achieve anti-interference effects and avoid harmonic resonance. This not only provides physical isolation but also absorbs stray electromagnetic waves generated by power lines, preventing secondary interference to signal transmission caused by electromagnetic wave reflection. The combination of communication and power reduces space costs. The included connecting component 14 and snap-fit ​​positioning component 15 facilitate connection and positioning operations, simplifying cable connection and subsequent connection operations, thus improving the cable's ease of use. The crimping connection component 17 automatically crimps and clamps the connector 16 after it is inserted, facilitating subsequent connection and insertion operations while maintaining cable connection stability, further enhancing the cable's ease of connection and user convenience.

Claims

1. An asymmetric layered decoupled shielded communication power cable, comprising a sheath (1), characterized in that: The sheath tube (1) is inlaid with a filling layer (2), and the filling layer (2) is inlaid with a tin-plated copper braided sleeve (3) and a wave-absorbing decoupling isolation layer (4); a tin foil shielding tube (5) is fixedly installed inside the tin-plated copper braided sleeve (3), and two insulating sleeves (6) are symmetrically installed inside the tin foil shielding tube (5). The first oxygen-free copper wire (7) is inlaid inside the insulating sleeve (6). The wave-absorbing decoupling isolation layer (4), the tin-plated copper braided sleeve (3) and the tin foil shielding tube (5) cooperate to form an outer electromagnetic shielding system, and suppress and absorb electromagnetic interference generated during power line transmission through phase mismatch twisting, so as to realize anti-interference transmission of communication signals.

2. The asymmetric layered decoupled shielded communication power cable according to claim 1, characterized in that: The sheath tube (1) is made of LSZH, and the insulating sleeve (6) is made of HDPE material to provide good flame retardancy, corrosion resistance and electrical insulation performance; there are four tin foil shielding tubes (5), which are arranged in a circumferential array inside the tin-plated copper braided sleeve (3) to wrap and shield the first oxygen-free copper wire (7) that transmits power signals.

3. The asymmetric layered decoupled shielded communication power cable according to claim 1, characterized in that: The absorber decoupling isolation layer (4) is inlaid with an aluminum foil shielding layer (8), and the aluminum foil shielding layer (8) is inlaid with a copper strip shielding layer (9). A protective tube (10) is inserted inside the copper strip shielding layer (9), and a second oxygen-free copper conductor (11) is inlaid inside the protective tube (10). The aluminum foil shielding layer (8), the copper strip shielding layer (9), and the protective tube (10) together constitute a multi-layer composite shielding system for shielding communication signals and isolating external electromagnetic interference. The protective tube (10) is made of XLPE material. There are three protective tubes (10). The three protective tubes (10) are arranged in a circular array inside the copper strip shielding layer (9). A reinforcing rod (12) is inserted between the three protective tubes (10). The reinforcing rod (12) is made of FRP material, i.e., fiber reinforced composite material, to enhance the tensile strength, compressive strength, and mechanical toughness of the cable and adapt to complex laying environments.

4. The asymmetric layered decoupled shielded communication power cable according to claim 1, characterized in that: The sheath tube (1) is provided with an independent grounding conductor (13), which is inserted into the filling layer (2) to facilitate the grounding operation of the cable, release accumulated charge, and ensure safe use.

5. The asymmetric layered decoupled shielded communication power cable according to claim 1, characterized in that: A connecting component (14) is provided on one side of the sheath tube (1), a snap-fit ​​positioning component (15) is provided on one side of the connecting component (14), a connector (16) is provided on one side of the snap-fit ​​positioning component (15), and a connecting tube (18) is rotatably connected to one side of the connector (16) through a sealed bearing, which facilitates connection with external equipment. The connecting component (14) includes a tapered positioning tube (1400) sleeved on the surface of the sheath tube (1), a threaded ring (1401) is threaded on the surface of the tapered positioning tube (1400), and a limiting plate (1402) is fixedly installed inside the tapered positioning tube (1400). The first oxygen-free copper wire (7) and the second oxygen-free copper wire (11) both pass through the limiting plate (1402) and extend to the outside of the limiting plate (1402). A wire hole is opened on the limiting plate (1402) for the oxygen-free copper wire to pass through, and the inner wall of the wire hole is slidably connected to the surface of the wire.

6. The asymmetric layered decoupled shielded communication power cable according to claim 5, characterized in that: The snap-fit ​​positioning assembly (15) includes a plug tube (1500) fixedly installed at one end of the first oxygen-free copper wire (7), a connecting rod (1501) inserted at one end of the plug tube (1500), and one end of the connecting rod (1501) fixedly connected to one end of the connector (16) to form an electrical path and assist in positioning. A snap-fit ​​block (1502) is fixedly installed at one end of the second oxygen-free copper wire (11).

7. The asymmetric layered decoupled shielded communication power cable according to claim 6, characterized in that: The card block (1502) is provided with a compression connection assembly (17) inside. The compression connection assembly (17) includes a card slot opened on one side of the card block (1502) for accommodating the connector (16) and the compression block (1703) on it. Arc-shaped spring pieces (1700) are fixedly installed on both sides of the inner wall of the card slot. A guide rod (1701) is fixedly installed on the inner bottom wall of the card slot. A tapered rod (1702) is fixedly installed at one end of the guide rod (1701) for guiding and triggering the connection action. A compression block (1703) is provided inside the card slot. One side of the compression block (1703) is fixedly connected to one side of the connector (16) for moving together with the connector (16) and triggering the linkage mechanism of the compression connection assembly (17).

8. The asymmetric layered decoupled shielded communication power cable according to claim 7, characterized in that: The extrusion block (1703) has a circular hole and a storage cavity (1704) on both sides of its bottom. A conical arc plate (1710) is provided inside the circular hole. An extrusion rod (1705) is fixedly installed on one side of the conical arc plate (1710). One end of the extrusion rod (1705) passes through the extrusion block (1703) and extends into the storage cavity (1704). A frustum plate (1706) is fixedly installed on the end of the extrusion rod (1705) inside the storage cavity (1704). The conical arc plate (1710) is used to contact and slide with the guide rod (1701) or the conical rod (1702) during assembly, thereby converting the axial insertion force into a force that drives the extrusion rod (1705) to move horizontally.

9. The asymmetric layered decoupled shielded communication power cable according to claim 8, characterized in that: A return spring (1709) is arranged around the surface of the extrusion rod (1705). One end of the return spring (1709) is fixedly connected to one side of the inner wall of the storage cavity (1704), and the other end of the return spring (1709) is fixedly connected to one side of the extrusion block (1703). It is used to provide a restoring force to the extrusion rod (1705) when the connector (16) is pulled out or detached. The extrusion block (1703) has a rod hole that connects the round hole to the storage cavity (1704). The surface of the extrusion rod (1705) is slidably connected to the inner wall of the rod hole.

10. The asymmetric layered decoupled shielded communication power cable according to claim 9, characterized in that: Both sides of the inner wall of the receiving cavity (1704) are provided with abutment rods (1707). One end of the abutment rod (1707) abuts against one side of the arc-shaped spring piece (1700). A triangular block (1708) is fixedly installed on one side of the inner wall of the receiving cavity (1704) of the abutment rod (1707). The two sides of the triangular block (1708) respectively contact one side of the frustum plate (1706) on both sides, which is used to transmit the internal horizontal movement to the external arc-shaped spring piece (1700), so that it undergoes elastic deformation. The abutment rod (1707) is positioned... A triangular block (1708) is fixedly installed on one side of the inner wall of the storage cavity (1704). The two sides of the triangular block (1708) are in contact with one side of the frustum plate (1706) on both sides. When the frustum plate (1706) moves horizontally with the extrusion rod (1705), its inclined surface will extrude the triangular block (1708), thereby pushing the abutment rod (1707) to move outward. Both sides of the extrusion block (1703) are provided with through holes for the abutment rod (1707) to pass through. The inner wall of the through hole is slidably connected to the surface of the abutment rod (1707).

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