A puncture-resistant shielded wire

Abstract

This invention discloses a puncture-resistant shielded wire, relating to the field of wire technology. It includes a wire body with an auxiliary mechanism. The auxiliary mechanism includes a circular ring block and a circular ring groove. Two symmetrical rectangular grooves are formed on one side of the circular ring block. Two locking holes are formed on the outer wall of the circular ring block. Two locking blocks are arranged inside each locking hole. A first sliding groove is formed on the inner wall of each locking hole. Two sliders are slidably connected inside each first sliding groove. A round rod is fixed inside each rectangular groove. This invention, by setting the auxiliary mechanism, enables the puncture-resistant shielded wire to have a rapid heat dissipation function, thus avoiding situations where heat cannot be quickly dissipated, affecting the insulation performance of the wire, shortening its service life, and increasing the fire hazard. This improves both the effectiveness and efficiency of the puncture-resistant shielded wire.

Description

Technical Field

[0001] This invention relates to the field of wire technology, specifically to a puncture-resistant shielded wire. Background Technology

[0002] As a key electrical device for transmitting electrical energy or signals, wires play an indispensable role in the operation of modern society. They are typically composed of core components such as conductors, insulation layers, and protective layers. In practical applications, such as medical equipment operation, aerospace operations, and military communications, the performance requirements for wires are extremely high. They not only have stringent requirements for the electromagnetic environment, need to shield against external interference and prevent internal signal leakage, but are also easily threatened by sharp objects, causing puncture damage. Therefore, to meet the needs of these special scenarios, puncture-resistant shielded wires are usually used.

[0003] In existing technologies, while puncture-resistant shielded wires can ensure the safe transmission of power and signals in certain special environments due to their puncture resistance and shielding properties, thus guaranteeing the normal operation of equipment, they lack rapid heat dissipation capabilities. This means that due to the strong electromagnetic field, the shielding layer inside the wire is prone to significant eddy current losses, causing it to heat up. If this heat cannot be dissipated quickly, it not only affects the insulation performance of the wire and shortens its lifespan but also increases the risk of fire. This reduces both the effectiveness and efficiency of the puncture-resistant shielded wire.

[0004] Therefore, we propose a puncture-resistant shielded wire to address the problems mentioned in the background section. Summary of the Invention

[0005] The purpose of this invention is to provide a puncture-resistant shielded wire to solve the problem that existing puncture-resistant shielded wires do not have a rapid heat dissipation function. That is, due to the effect of strong electromagnetic fields, the shielding layer inside the wire is prone to generating large eddy current losses, which leads to the shielding layer heating up. If the generated heat cannot be dissipated quickly, it will not only affect the insulation performance of the wire and shorten its service life, but also increase the fire hazard. This reduces both the effectiveness and efficiency of the puncture-resistant shielded wire.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a puncture-resistant shielded wire, comprising a wire body, wherein an auxiliary mechanism is provided on the wire body;

[0007] The auxiliary mechanism includes a circular block and a circular groove. Two symmetrical rectangular grooves are formed on one side of the circular block. Two locking holes are formed on the outer wall of the circular block. Each locking hole contains two locking blocks. A first sliding groove is formed on the inner wall of each locking hole. Two sliders are slidably connected inside each first sliding groove. A round rod is fixed inside each rectangular groove. A spring is movably sleeved on the outer surface of each round rod. Two first magnetic blocks are fixedly embedded in the outer wall of the circular block. Two symmetrical heat sinks are formed on the outer wall of the circular block. Two locking slots are formed on the inner wall of each heat sink. A second sliding groove is formed on the inner wall of each locking slot. A second magnetic block is fixedly embedded in the inner wall of each heat sink. A rubber stopper is formed inside each rectangular groove. Two auxiliary grooves are formed on one side of each rubber stopper.

[0008] Preferably, the annular block is fixed inside the annular groove, the interior of each rectangular groove is connected to the interior of each card hole, and the surface of each card block is fixed to the surface of each slider.

[0009] Preferably, the four card blocks are divided into two groups, and the moving end of each group of card blocks is slidably connected inside each rectangular slot, and the two ends of each round rod move through the opposite side of each group of card blocks.

[0010] Preferably, the two ends of each spring are respectively installed on the opposite side of each group of blocks, the opposite sides of the two heat sinks are in contact, the four slots are divided into two groups, and the four second slides are divided into two groups.

[0011] Preferably, the locking end of each group of the card blocks is movably locked inside the slot of each group, and the four sliders are divided into two groups, with the opposite ends of each group of sliders movably locked inside the second slide groove of each group.

[0012] Preferably, the surface of each first magnetic block is in contact with the surface of each second magnetic block and is connected by opposite magnetic poles, and the two ends of each rubber stopper are in contact with the opposite side of each set of card blocks.

[0013] Preferably, the wire body includes two conductors, each conductor having a mica strip on its outer surface, and each mica strip having an insulating layer on its outer surface.

[0014] Preferably, a filling layer is provided between the outer surfaces of the two insulating layers, and an inner liner layer is provided on the outer surface of the filling layer.

[0015] Preferably, the outer surface of the inner lining layer is provided with a heat-resistant layer, the outer surface of the heat-resistant layer is provided with a waterproof layer, and the outer surface of the waterproof layer is provided with a puncture-resistant layer.

[0016] Preferably, the outer surface of the puncture-resistant layer is provided with a shielding layer, the outer surface of the shielding layer is provided with a sheath layer, and the annular groove is formed on the outer wall of the sheath layer.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention, by setting an auxiliary mechanism, enables puncture-resistant shielded wires to have a rapid heat dissipation function. This avoids situations where heat cannot be dissipated quickly, affecting the insulation performance of the wire, shortening its service life, and increasing the risk of fire. This improves both the effectiveness and efficiency of the puncture-resistant shielded wires. When it is necessary to remove the two heat sinks on the wire body, the rubber plugs can be removed from the rectangular groove using the prepared tools and auxiliary groove. Then, the circular groove can be used to apply a force to each of the locking blocks.

[0019] 2. In this invention, by utilizing the applied force, the rectangular groove, and the locking hole, the locking blocks can be moved towards each other. Then, by utilizing the first sliding groove and the locking blocks moving towards each other, a set of sliders can be moved towards each other. When the set of sliders has completely moved out of the corresponding second sliding groove, a force is first applied to the heat sink, causing it to move away from the annular block until the first and second magnetic blocks separate. Then, by utilizing the above operation steps, the other heat sink can be removed. When it is necessary to reset the two heat sinks to their original positions, the above operation steps are reversed to reset the two heat sinks to their original positions.

[0020] 3. This invention, by setting the wire body, can reduce the probability of internal damage to the wire body, thereby extending the overall service life of the wire body. It also increases the accuracy and stability of signal transmission within the wire body. The sheath layer protects the wire body from external chemical corrosion, extending its service life in harsh environments. The shielding layer blocks external electromagnetic interference signals, ensuring the accuracy and stability of signal transmission. The puncture-resistant layer prevents the wire body from being scratched or punctured by building materials or tools, reducing the probability of damage and extending its overall service life. The waterproof layer allows the wire body to better adapt to environmental conditions and resist long-term moisture erosion, improving its environmental adaptability and reliability.

[0021] 4. This invention, through the action of the heat-resistant layer, enables the wire body to adapt to high-temperature environments and maintain stable performance, expanding the application range of the wire body. Through the action of the inner lining layer, it can play a buffering role, preventing the insulation layer inside the wire body from being damaged by mechanical external forces. Through the action of the filling layer, it can disperse stress, reducing the pressure and tension on the conductor inside the wire body, thereby reducing the risk of conductor damage due to external forces. Through the action of the insulation layer, it can help adjust and balance the electric field distribution between conductors, making the electric field more uniform, thereby improving the electrical performance and operational stability of the wire body. Through the action of the mica tape, it can supplement and strengthen the insulation effect, preventing current leakage and short circuits. Through the action of the conductor, it can provide a path for current, allowing charges to move directionally in the circuit, thereby realizing the transmission and distribution of electrical energy. Attached Figure Description

[0022] Figure 1 This is a perspective view of a puncture-resistant shielded wire according to the present invention;

[0023] Figure 2 This is a schematic diagram of the wire body structure of a puncture-resistant shielded wire according to the present invention;

[0024] Figure 3 This is a sectional perspective view of an auxiliary mechanism for a puncture-resistant shielded wire according to the present invention.

[0025] Figure 4 This is a perspective cross-sectional view of an auxiliary mechanism for a puncture-resistant shielded wire according to the present invention.

[0026] Figure 5 This is a cross-sectional view of an auxiliary mechanism for a puncture-resistant shielded wire according to the present invention.

[0027] Figure 6 This is a perspective view of an auxiliary mechanism portion of a puncture-resistant shielded wire according to the present invention.

[0028] Figure 7 This is a perspective view of another part of the auxiliary mechanism for a puncture-resistant shielded wire according to the present invention.

[0029] Figure 8 This is a cross-sectional perspective view of another part of the auxiliary mechanism for a puncture-resistant shielded wire according to the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of a puncture-resistant shielded wire according to the present invention.

[0031] In the diagram: 1. Wire body; 101. Conductor; 102. Mica tape; 103. Insulation layer; 104. Filler layer; 105. Inner lining layer; 106. Heat-resistant layer; 107. Waterproof layer; 108. Puncture-resistant layer; 109. Shielding layer; 110. Sheath layer; 2. Auxiliary mechanism; 201. Circular block; 202. Circular groove; 203. Rectangular groove; 204. Locking hole; 205. First sliding groove; 206. Locking block; 207. Sliding block; 208. Round rod; 209. Spring; 210. First magnetic block; 211. Heat sink; 212. Locking slot; 213. Second sliding groove; 214. Second magnetic block; 215. Rubber stopper; 216. Auxiliary groove. Detailed Implementation

[0032] 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.

[0033] Example 1: Please refer to Figures 1-9 As shown, the present invention provides a technical solution: a puncture-resistant shielded wire, including a wire body 1, and an auxiliary mechanism 2 is provided on the wire body 1;

[0034] Auxiliary mechanism 2 includes an annular block 201 and an annular groove 202. Two symmetrical rectangular grooves 203 are formed on one side of the annular block 201. Two locking holes 204 are formed on the outer wall of the annular block 201. Two locking blocks 206 are disposed inside each locking hole 204. A first sliding groove 205 is formed on the inner wall of each locking hole 204. Two sliders 207 are slidably connected inside each first sliding groove 205. A round rod 208 is fixed inside each rectangular groove 203. A spring 209 is movably sleeved on the outer surface of each round rod 208. Two first magnetic blocks 210 are fixedly embedded in the outer wall of the ring block 201. Two symmetrical heat sinks 211 are provided on the outer wall of the ring block 201. Two slots 212 are formed on the inner wall of each heat sink 211. A second sliding groove 213 is formed on the inner wall of each slot 212. A second magnetic block 214 is fixedly embedded in the inner wall of each heat sink 211. A rubber stopper 215 is provided inside each rectangular groove 203. Two auxiliary grooves 216 are formed on one side of each rubber stopper 215. The ring block 201 is fixed inside the ring groove 202. The interior of each rectangular slot 203 is connected to the interior of each slot 204. The surface of each locking block 206 is fixed to the surface of each slider 207. The four locking blocks 206 are divided into two groups. The moving end of each group of locking blocks 206 is slidably connected to the interior of each rectangular slot 203. The two ends of each round rod 208 move through the opposite side of each group of locking blocks 206. The two ends of each spring 209 are installed with the opposite side of each group of locking blocks 206. The opposite sides of the two heat sinks 211 are in contact. The four slots 212 are divided into... The four second slide grooves 213 are divided into two groups. The locking end of each group of locking blocks 206 is movably locked into the inside of each group of locking grooves 212. The four sliders 207 are divided into two groups. The opposite ends of each group of sliders 207 are movably locked into the inside of each group of second slide grooves 213. The surface of each first magnetic block 210 is in contact with the surface of each second magnetic block 214 and is connected with opposite magnetic poles. The two ends of each rubber plug 215 are in contact with the opposite side of each group of locking blocks 206. The annular groove 202 is opened on the outer wall of the sheath layer 110.

[0035] In this embodiment, when it is necessary to remove the two heat sinks 211 on the wire body 1, the prepared tools and the four auxiliary slots 216 are used to remove the two rubber plugs 215 from the inside of their corresponding rectangular slots 203. At this time, the two removed rubber plugs 215 will separate from their corresponding set of locking blocks 206. Then, using the annular slot 202, a force is applied to each of the locking blocks 206, causing this set of locking blocks 206 to move towards each other between their corresponding rectangular slots 203, corresponding locking holes 204, and corresponding set of locking slots 212. At this time, the set of locking blocks 206 moving towards each other will... The corresponding rectangular groove 203 and the corresponding round rod 208 work together to cause the corresponding spring 209 to undergo elastic deformation. Simultaneously, a set of opposing locking blocks 206 will drive a set of corresponding sliders 207 to move towards each other between the corresponding first sliding groove 205 and the corresponding set of second sliding grooves 213. When the locking ends of this set of locking blocks 206 are all separated from the corresponding set of locking grooves 212, the corresponding set of sliders 207 will separate from the corresponding set of second sliding grooves 213, and the movement of this set of locking blocks 206 will stop. At this point, the stopped locking blocks 206 will cause the corresponding set of sliders... 207 stops moving, and then a force is applied to the corresponding heat sink 211, causing the heat sink 211 to move away from the annular block 201. At this time, the moving heat sink 211 will drive the corresponding second magnetic block 214 to move. When the moving heat sink 211 separates from the other heat sink 211, the moving second magnetic block 214 will separate from the corresponding first magnetic block 210. Then, the heat sink 211 can be removed directly. Next, the force applied to the two locking blocks 206 is released. At this time, the two locking blocks 206 will be in the corresponding rectangular slot 203, the corresponding locking hole 204, and the corresponding round rod 20. Under the cooperation of the spring 209 and the spring force of 8, the reset movement is performed. At this time, the reset movement of the locking block 206 will be coordinated with the corresponding first slide groove 205 to drive the corresponding two sliders 207 to reset movement. When both locking blocks 206 are reset back to their original positions, they will stop moving. The two stopped locking blocks 206 will cause the corresponding two sliders 207 to stop moving. Then, follow the above operation steps to remove the other heat sink 211. When it is necessary to reset the two heat sinks 211 back to their original positions, simply reverse the operation steps as described above.

[0036] Example 2: According to Figure 1 , Figure 2 and Figure 9As shown, the wire body 1 includes two conductors 101. Each conductor 101 has a mica tape 102 on its outer surface. Each mica tape 102 has an insulation layer 103 on its outer surface. A filler layer 104 is provided between the outer surfaces of the two insulation layers 103. An inner lining layer 105 is provided on the outer surface of the filler layer 104. A heat-resistant layer 106 is provided on the outer surface of the inner lining layer 105. A waterproof layer 107 is provided on the outer surface of the heat-resistant layer 106. A puncture-resistant layer 108 is provided on the outer surface of the waterproof layer 107. A shielding layer 109 is provided on the outer surface of the puncture-resistant layer 108. A sheath layer 110 is provided on the outer surface of the shielding layer 109.

[0037] In this embodiment, when the wire body 1 needs to be used in environments containing corrosive chemicals, the sheath layer 110 can protect it from these chemicals, thus extending its service life in harsh environments. When the wire body 1 needs to be used in complex electromagnetic environments, the shielding layer 109 can block external electromagnetic interference signals, ensuring that the signals or electrical energy transmitted inside the wire body 1 are not affected, thereby ensuring the accuracy and stability of signal transmission. When the wire body 1 needs to be used in construction sites, the puncture-resistant layer 108 can prevent it from being scratched or punctured by building materials or tools, reducing the probability of damage and extending its overall service life. When the wire body 1 needs to be used in humid and rainy environments, the waterproof layer 107 can help it better adapt to environmental conditions and resist long-term water erosion, improving its environmental adaptability and reliability. When the wire body 1 needs to be used in high-temperature environments, the heat-resistant layer 10... Under the action of 6, the wire body 1 can adapt to high-temperature environments and maintain stable performance, expanding the application range of the wire body 1. When the wire body 1 needs to be installed, the inner lining layer 105 can act as a buffer to prevent the insulation layer 103 inside the wire body 1 from being damaged by mechanical external forces. When the wire body 1 is subjected to external forces, the filling layer 104 can disperse the stress and reduce the pressure and tension on the conductor 101 inside the wire body 1, thereby reducing the risk of damage to the conductor 101 due to external forces. When the wire body 1 is in use... At this time, the insulation layer 103 helps to adjust and balance the electric field distribution between conductors 101, making the electric field more uniform, thereby improving the electrical performance and operational stability of the wire body 1. When the insulation layer 103 of the wire body 1 is damaged or has weak points, the mica tape 102 can supplement and strengthen the insulation effect, preventing current leakage and short circuits. When the wire body 1 needs to be used, the conductor 101 can provide a path for the current, allowing charges to move directionally in the circuit, thereby realizing the transmission and distribution of electrical energy.

[0038] The overall effect and working principle of the mechanism are as follows: When it is necessary to remove the two heat sinks 211 on the wire body 1, the two rubber plugs 215 are first removed from the corresponding rectangular grooves 203 using the prepared tools and the cooperation of the four auxiliary grooves 216. At this time, the two rubber plugs 215 will separate from the corresponding set of locking blocks 206. Then, using the cooperation of the annular groove 202, a force is applied to each of the locking blocks 206, causing the set of locking blocks 206 to move towards each other between the corresponding rectangular groove 203, the corresponding locking hole 204 and the corresponding set of locking slots 212. At this time, the set of locking blocks 206 moving towards each other will be connected by the corresponding rectangular groove 203 and the corresponding circular rod 208. When the blocks are closed, the corresponding spring 209 undergoes elastic deformation. Simultaneously, a set of opposing blocks 206 causes a set of corresponding sliders 207 to move towards each other between the corresponding first slide groove 205 and the corresponding second slide groove 213. When the engaging ends of this set of blocks 206 are separated from the corresponding set of slide grooves 212, the corresponding set of sliders 207 will separate from the corresponding set of second slide grooves 213, stopping the movement of this set of blocks 206. The stopped blocks 206 then cause the corresponding set of sliders 207 to stop moving, subsequently applying a force to the corresponding heat sink 211, causing the heat sink 211 to move away from the annular block 201. The moving heat sink 211 will drive the corresponding second magnetic block 214 to move. When the moving heat sink 211 separates from another heat sink 211, the moving second magnetic block 214 will separate from the corresponding first magnetic block 210. Then, the heat sink 211 can be removed directly. Next, release the force applied to the two locking blocks 206. At this time, the two locking blocks 206 will reset and move under the cooperation of the corresponding rectangular slot 203, the corresponding locking hole 204, the corresponding round rod 208 and the corresponding spring 209. At this time, the locking blocks 206 that are resetting will drive the corresponding two sliders 207 to reset and move under the cooperation of the corresponding first sliding groove 205. When both locking blocks 206 have reset... When the wire returns to its original position, the two locking blocks 206 will stop moving. This will cause the corresponding two sliders 207 to stop moving as well. Then, follow the steps described above to remove the other heat sink 211. To return the two heat sinks 211 to their original positions, simply reverse the steps described above. When the wire body 1 needs to be used in environments with corrosive chemicals, the sheath layer 110 can protect it from these chemicals, extending its service life in harsh environments. When the wire body 1 needs to be used in complex electromagnetic environments, the shielding layer 109 can protect it from these chemicals.External electromagnetic interference signals are blocked from the outside of the wire body 1, ensuring that the signals or electrical energy transmitted inside the wire body 1 are not affected, thereby ensuring the accuracy and stability of signal transmission. When the wire body 1 needs to be used in a construction site, the anti-puncture layer 108 prevents the wire body 1 from being scratched or punctured by building materials or tools, thereby reducing the probability of damage to the wire body 1 and extending its overall service life. When the wire body 1 needs to be used in a humid and rainy environment, the waterproof layer 107 allows the wire body 1 to better adapt to environmental conditions and resist long-term water erosion, thereby improving the environmental adaptability and reliability of the wire body 1. When the wire body 1 needs to be used in a high-temperature environment, the heat-resistant layer 106 allows the wire body 1 to adapt to the high-temperature environment and maintain stable performance, expanding the application range of the wire body 1. When the wire body 1 needs to be installed as a cable, the heat-resistant layer 106 can also prevent damage. The inner lining layer 105 acts as a buffer, preventing damage to the insulation layer 103 inside the wire body 1 due to mechanical external forces. When the wire body 1 is subjected to external forces, the filling layer 104 disperses the stress, reducing the pressure and tension on the conductor 101 inside the wire body 1, thereby reducing the risk of damage to the conductor 101 due to external forces. When the wire body 1 is in use, the insulation layer 103 helps to regulate and balance the electric field distribution between the conductors 101, making the electric field more uniform, thereby improving the electrical performance and operational stability of the wire body 1. When the insulation layer 103 of the wire body 1 is damaged or has weak points, the mica tape 102 supplements and strengthens the insulation effect, preventing current leakage and short circuits. When the wire body 1 needs to be used, the conductor 101 provides a path for current, allowing charges to move directionally in the circuit, thereby realizing the transmission and distribution of electrical energy.

[0039] Among them, heat sink 211 is an arc-shaped heat sink.

[0040] Among them, such as Figure 1 The wire body 1 shown is a part of the wire, and multiple auxiliary mechanisms 2 are evenly distributed on the entire wire.

[0041] Among them, the sheath layer 110 is made of polyvinyl chloride, the shielding layer 109 is made of aluminum foil, the puncture-resistant layer 108 is made of polyethylene, the waterproof layer 107 is made of aluminum-plastic composite tape, the heat-resistant layer 106 is made of EPDM rubber, the inner lining layer 105 is made of polyvinyl chloride, the filling layer 104 is made of rubber strip, the insulation layer 103 is made of EPDM rubber, the mica tape 102 is made of phlogopite paper and fiberglass cloth, and the conductor 101 is made of copper.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A puncture-resistant shielded wire, characterized in that: It includes a wire body (1), on which an auxiliary mechanism (2) is provided; The auxiliary mechanism (2) includes an annular block (201) and an annular groove (202). Two symmetrical rectangular grooves (203) are provided on one side of the annular block (201). Two locking holes (204) are provided on the outer wall of the annular block (201). Two locking blocks (206) are provided inside each locking hole (204). A first sliding groove (205) is provided on the inner wall of each locking hole (204). Two sliders (207) are slidably connected inside each first sliding groove (205). A round rod (208) is fixed inside each rectangular groove (203). The outer surface of each round rod (208) is movable. A spring (209) is connected to the ring block (201). Two first magnetic blocks (210) are fixedly embedded on the outer wall of the ring block (201). Two symmetrical heat sinks (211) are provided on the outer wall of the ring block (201). Two slots (212) are opened on the inner wall of each heat sink (211). A second sliding groove (213) is opened on the inner wall of each slot (212). A second magnetic block (214) is fixedly embedded on the inner wall of each heat sink (211). A rubber plug (215) is provided inside each rectangular groove (203). Two auxiliary grooves (216) are opened on one side of each rubber plug (215). The annular block (201) is fixed inside the annular groove (202), the interior of each rectangular groove (203) is connected to the interior of each card hole (204), and the surface of each card block (206) is fixed to the surface of each slider (207); The four card blocks (206) are divided into two groups. The moving end of each group of card blocks (206) is slidably connected to the inside of each rectangular slot (203). The two ends of each round rod (208) move through the opposite side of each group of card blocks (206). Each spring (209) has its two ends installed on the opposite side of each set of blocks (206), the opposite sides of the two heat sinks (211) are in contact, the four slots (212) are divided into two groups, and the four second slides (213) are divided into two groups. The snap-fit ​​ends of each set of snap-fit ​​blocks (206) are movably snapped into the interior of each set of snap-fit ​​slots (212). The four sliders (207) are divided into two sets. The opposite ends of each set of sliders (207) are movably snapped into the interior of each set of second slider slots (213). The surface of each first magnetic block (210) is in contact with the surface of each second magnetic block (214) and is connected by opposite magnetic poles. The two ends of each rubber stopper (215) are in contact with the opposite side of each set of card blocks (206).

2. The puncture-resistant shielded wire according to claim 1, characterized in that: The wire body (1) includes two conductors (101), each conductor (101) has a mica tape (102) on its outer surface, and each mica tape (102) has an insulation layer (103) on its outer surface.

3. The puncture-resistant shielded wire according to claim 2, characterized in that: A filling layer (104) is provided between the outer surfaces of the two insulating layers (103), and an inner lining layer (105) is provided on the outer surface of the filling layer (104).

4. The puncture-resistant shielded wire according to claim 3, characterized in that: The outer surface of the inner lining layer (105) is provided with a heat-resistant layer (106), the outer surface of the heat-resistant layer (106) is provided with a waterproof layer (107), and the outer surface of the waterproof layer (107) is provided with a puncture-resistant layer (108).

5. The puncture-resistant shielded wire according to claim 4, characterized in that: The outer surface of the puncture-resistant layer (108) is provided with a shielding layer (109), the outer surface of the shielding layer (109) is provided with a sheath layer (110), and the annular groove (202) is formed on the outer wall of the sheath layer (110).

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