A kind of green low-carbon environmental protection type cable for insulating layer optimization structure

Abstract

The application relates to the technical field of insulated cables and discloses a green low-carbon environment-friendly cable with an optimized structure of an insulation layer, which comprises a joint, the joint comprises a connecting outer tube which is in clamping connection with the port of an insulation sleeve, sealing strips one are arranged at both ends of the inner wall of the connecting outer tube, a limiting ring is fixedly connected to the middle part of the inner wall of the connecting outer tube, limiting grooves are equidistantly arranged in the inner wall of the limiting ring, and a supporting piece is in sliding connection with the inner wall of the limiting ring through the limiting grooves; the supporting piece comprises a supporting rod one, a supporting rod two and a connecting piece. The outer wall is sealed through the sealing strips one, the tapered sealing strips two are in linkage pressure with the clamping blocks and the flexible layer, and the cable insulation sleeve port is tightly sealed. Meanwhile, the filling rod one is inserted into the inside of the insulation sleeve port to provide radial support, residual stress generated due to thermal expansion and cold shrinkage and mechanical vibration during the operation of the cable is effectively resisted, and the phenomena of "collapse", such as the retraction of the outer sheath, the curling of the insulation layer and the scattering of the filler, are fundamentally avoided.

Description

Technical Field

[0001] This invention relates to the field of insulated cable technology, and more specifically to a green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure. Background Technology

[0002] Cables are insulated wires that transmit electrical energy and signals. They are essential power transmission and wiring components for power, communication, and industrial equipment, possessing characteristics such as wear resistance, pressure resistance, corrosion resistance, and insulation protection. Modern cables are composed of multi-layered composite structures. During cable termination or intermediate connection, the port area after the outer sheath and core insulation layers have been stripped needs to be reinforced with multiple layers of insulating tape (or heat shrink tubing, self-adhesive tape, etc.) to restore and strengthen electrical insulation. By pressing and fixing the stripped outer sheath port, inner wrapping layer, and core insulation layer edges with tape, residual stress caused by thermal expansion and contraction, mechanical vibration, bending, or stretching during cable operation can be effectively resisted. This prevents phenomena such as the outer sheath retracting backward, insulation layer edge curling or peeling, and filler scattering, thus maintaining the structural integrity of the cable end.

[0003] However, in practice, this process also has certain inconveniences. High-quality multi-layer wrapping requires each layer to be tightened and overlapped evenly (usually using a semi-overlapping wrapping method), which demands a high level of operator skill. Each joint can take anywhere from several minutes to over ten minutes, significantly extending the operation time in large-scale wiring or emergency repair scenarios. In addition, the wrapped tape adheres tightly to the cable surface and often uses self-adhesive, hot-melt, or vulcanized materials. Removal often requires cutting or peeling, which can easily damage the original outer sheath or core insulation layer, making subsequent maintenance, wiring changes, or terminal replacement difficult. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a green, low-carbon and environmentally friendly cable with an optimized insulation layer structure. It can effectively solve the problems in the existing technology, where multi-layer winding operation at the port during cable connection can prevent the structure from breaking and restore electrical insulation, but it is time-consuming, requires a high level of skill, is difficult to dismantle, and is easy to damage the original sheath and insulation layer.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure, comprising: An insulating sleeve has a wire core on its inner wall, and the cavity formed by the wire core and the insulating sleeve is filled with a filling layer. A connector is snapped into the end of the insulating sleeve. The connector includes a connecting outer tube that snaps into the end of the insulating sleeve. A sealing strip is provided at both ends of the inner wall of the connecting outer tube. A limiting ring is fixedly connected to the middle of the inner wall of the connecting outer tube. Limiting grooves are equidistantly formed on the inner wall of the limiting ring. A support member is slidably connected to the inner wall of the limiting ring through the limiting grooves. The support component includes a support rod one, a support rod two, and a connector. The support rod one includes a filling rod one with a tapered side design. A protective sleeve one is fitted on the outer wall of the filling rod one. A fixing plate one is fixedly connected to the other end of the filling rod one. The other end of the fixing plate one is connected to one end of the connector. A locking block is designed along the circumferential direction on the outer wall of the fixing plate one. The other end of the connector is connected to the support rod two. The locking block is slidably connected to the limiting groove. The fixed plate 1 is equidistantly fixed with a positioning plate 1 on one side near the support rod 2. The support rod 2 includes a positioning plate 2 that is staggered with the positioning plate 1. The outer walls of both the positioning plate 1 and the positioning plate 2 are arc-shaped.

[0006] Furthermore, the inner wall of the limiting groove is designed with a slope, and a slot for engaging with the locking block is provided at the end of the limiting groove away from the second support rod. A flexible layer is provided on the side of the locking block near the center of the fixing plate.

[0007] Furthermore, the second support rod also includes a second filling rod with the same shape as the first filling rod. The outer wall of the second filling rod is fitted with a second protective sleeve with the same shape as the first protective sleeve. The second protective sleeve is fixedly connected to the first fixing plate at one end, and the other end of the second fixing plate is fixedly connected to the second positioning plate.

[0008] Furthermore, a second sealing strip is provided on the side of the limiting ring, and the second sealing strip has a tapered design on its side.

[0009] Furthermore, both the ends of the fixing plate one and the fixing plate two that are far apart from each other are designed to bulge outwards.

[0010] Furthermore, in the initial state, the second fixing plate is flush with the outer port of the connecting outer tube, and at this time, the first fixing plate is located at the end of the limiting groove near the second fixing plate.

[0011] Furthermore, the connector includes a thin rod fixedly connected to the middle of one end of the fixed plate away from the filling rod. The thin rod has L-shaped grooves equidistantly opened on its outer wall. The grooves have openings on their sides. A spring is elastically connected to the inner wall of the thin rod. A thick rod is elastically connected to the other end of the spring. A second slider is fixedly connected to the inner side of the thick rod at equal intervals. A first slider is fixedly connected to the inner wall of the thick rod at equal intervals.

[0012] Furthermore, the length of slider one is greater than the length of slider two, the width of slider one is less than that of slider two, both slider one and slider two are slidably connected to the groove, and the width of slider two is greater than the width of the groove opening.

[0013] The technical solution provided by this invention has the following advantages compared with the prior art: This invention achieves outer wall sealing through sealing strip one, and achieves tight sealing of the cable insulation sleeve port through the linkage and compression of tapered sealing strip two with the clamping block and flexible layer. At the same time, filling rod one is inserted into the insulation sleeve port to provide radial support, effectively resisting residual stress caused by thermal expansion and contraction and mechanical vibration during cable operation, fundamentally avoiding "cracking" phenomena such as outer sheath retraction, insulation layer curling, and filler scattering.

[0014] This invention achieves reinforcement and sealing through modular connector assembly and one-click push-pull locking, significantly reducing the construction time for a single connector. It is perfectly suited for high-efficiency operation scenarios such as large-scale cabling and emergency repairs. It does not rely on the operator's skill level or technique; stable and uniform compression and sealing are achieved through the precise coordination of the mechanical structure, ensuring the quality consistency of each connector. It solves the problems of high construction threshold and low efficiency of traditional processes. Relying on the structural characteristics of the connector's elastic expansion, rotation locking, and reversible reset, it enables rapid assembly, non-destructive unlocking, and repeated use of the connector structure. It completely solves the pain point of traditional self-adhesive and hot melt tape removal easily damaging the cable body, greatly simplifying the subsequent maintenance, wiring change, and terminal replacement operation process, and extending the overall service life of the cable.

[0015] This invention replaces the cumbersome process of wrapping multiple layers of tape layer by layer. It only requires putting on the connector, pushing the support and rotating to lock it. The whole operation takes only tens of seconds, which greatly shortens the time for cable terminal production or intermediate connection. It is especially suitable for large-scale wiring or emergency repair scenarios.

[0016] This invention utilizes the L-shaped groove and slider linkage design of the connector, along with the elastic reset of the spring, to allow the connector to be easily removed from the cable without cutting or stripping. This completely avoids the problem of damaging the original outer sheath or wire core insulation layer when removing traditional tape, greatly facilitating subsequent maintenance, rewiring, or terminal replacement.

[0017] The interlaced arc-shaped positioning plates one and two, along with the protective sleeve with arc-shaped grooves, can smoothly guide and isolate multiple wire cores, preventing them from becoming entangled or damaged. They also provide progressive support when bending, optimizing the stress distribution at the cable ends. The support components achieve two working states—contraction (facilitating wire threading) and extension (locking support)—through connectors, adapting to different spatial and functional requirements before, during, and after cable connection. The design is ingenious and practical. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the port structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the connector structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the initial state structure of the support member according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the support member in a fully supported state according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the card block structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the connector structure in an embodiment of the present invention.

[0020] The labels in the diagram represent: 1. Insulating sleeve; 2. Wire core; 3. Filler layer; 5. Connector; 51. Connecting outer tube; 511. Limiting ring; 512. Sealing strip one; 513. Sealing strip two; 514. Limiting groove; 53. Support component; 531. Support rod one; 5311. Filler rod one; 5312. Protective sleeve one; 5313. Fixing plate one; 5314. Positioning plate one; 5315. Locking block; 5316. Flexible layer; 532. Support rod two; 5321. Filler rod two; 5322. Protective sleeve two; 5323. Fixing plate two; 5324. Positioning plate two; 533. Connector; 5331. Thick rod; 5332. Slider one; 5333. Slider two; 5334. Spring; 5335. Thin rod; 5336. Slide groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] Example: Please see Figures 1-7 This invention provides a green, low-carbon, and environmentally friendly cable technology solution with optimized insulation layer structure: refer to Figure 1 and Figure 2 The cable comprises an outer insulating sheath 1, an innermost wire core 2, and a filling layer 3 that fills the cavity formed by the insulating sheath 1 and the wire core 2. In actual use, to connect with other equipment, workers strip the cable ends using equipment. After connection, in addition to wrapping the connection point of the wire core 2, it is also necessary to wrap the part of the wire core 2 near the new port of the insulating sheath 1, and wrap the new port of the insulating sheath 1. However, in actual operation, high-quality multi-layer wrapping requires each layer to be tightened and overlapped evenly, which requires a high level of operator skill. Each connection takes several minutes to more than ten minutes, which significantly extends the operation time in large-scale wiring or emergency repair scenarios. In addition, the wrapped tape adheres tightly to the cable surface and is often made of self-adhesive, hot-melt, or vulcanized materials. Removal often requires cutting or peeling, which can easily damage the original outer sheath or the insulation layer of the wire core 2, making subsequent maintenance, wiring changes, or terminal replacement difficult. To solve the above problems, this invention provides a connector 5 that is fitted onto the port of the insulating sheath 1.

[0024] refer to Figure 2 and Figure 3 The connector 5 includes a connecting outer tube 51 that engages with the port of the insulating sleeve 1. Both ends of the inner wall of the connecting outer tube 51 are provided with sealing strips 512. Before connecting the wire cores 2, the connecting outer tube 51 is first fitted onto the outer end of the insulating sleeve 1, and one end of the connecting outer tube 51 is clamped and fixed to the outer wall of the insulating sleeve 1 using a special clamp. In addition to the clamping force provided by the radial deformation of the connecting outer tube 51 itself, the sealing strips 512 further fill and seal the tiny gap between the connecting outer tube 51 and the outer wall of the insulating sleeve 1, achieving preliminary waterproofing, dustproofing, and mechanical fixation. refer to Figure 3 and Figure 4 A limiting ring 511 is fixedly connected to the middle of the inner wall of the connecting outer tube 51. Limiting grooves 514 are equidistantly opened on the inner wall of the limiting ring 511. A support member 53 is slidably connected to the inner wall of the limiting ring 511 through the limiting grooves 514. A second sealing strip 513 is provided on the side of the limiting ring 511. The side of the second sealing strip 513 adopts a tapered design. When the support member 53 moves from one end of the limiting ring 511 to the other end, it will contact the second sealing strip 513 and gradually apply pressure, so that it fits tightly against the edge of the cut port of the insulating sleeve 1, thereby significantly increasing the sealing degree between the inner wall of the connecting outer tube 51 and the cut port of the insulating sleeve 1, effectively preventing moisture or impurities from entering from the interface.

[0025] refer to Figure 3, Figure 4 and Figure 6 The support member 53 includes a first support rod 531, a second support rod 532, and a connector 533.

[0026] Support rod 531 includes a filler rod 5311 with a tapered side design, and a protective sleeve 5312 is fitted on the outer wall of the filler rod 5311. The protective sleeve 5312 is made of flexible insulating material, and its surface has arc-shaped grooves at equal intervals to enhance flexibility and fit with the wire core 2. The other end of the filler rod 5311 is fixedly connected to a fixing plate 5313, and the other end of the fixing plate 5313 is connected to one end of the connector 533. The outer wall of the fixing plate 5313 is designed with a locking block 5315 along the circumference. The locking block 5315 is slidably connected to the limiting groove 514. The inner wall of the limiting groove 514 is designed with a bevel. The end of the limiting groove 514 away from the support rod 532 has a locking groove that engages with the locking block 5315. A flexible layer 5316 is provided on the side of the locking block 5315 near the center of the fixing plate 5313. When the fixing plate 5313 moves the locking block 5315 along the inclined surface of the limiting groove 514, the radial force on the locking block 5315 gradually increases as the contact position of the inclined surface changes, forcing the flexible layer 5316 to undergo elastic deformation, thereby transmitting pressure to the sealing strip 513. When the locking block 5315 finally moves to the locking groove at the end of the limiting groove 514, it not only achieves axial locking and positioning of the entire support member 53, but also continuously applies a stable clamping force to the sealing strip 513, greatly enhancing the sealing reliability.

[0027] A positioning plate 5314 is fixed at equal intervals on one side of the fixing plate 5313 near the support rod 532. The outer side of the positioning plate 5314 is provided with a groove for limiting and guiding the outer wall of the wire core 2. The arc-shaped groove on the outer side of the protective sleeve 5312 and the groove on the outer side of the positioning plate 5314 are opened at the same angle to ensure the continuity and consistency of the support and limiting of the wire core 2.

[0028] The other end of connector 533 is connected to support rod 532. The second support rod 532 includes a second positioning plate 5324 that is designed to intersect with the first positioning plate 5314. The outer walls of both the first positioning plate 5314 and the second positioning plate 5324 are designed with an arc shape. The arc surface can not only smoothly guide the wire core 2 and its connecting parts, avoiding damage to the insulation layer of the wire core 2 by sharp edges, but also prevent multiple wire cores 2 from getting tangled together, playing the role of isolation and filling. Moreover, the gradually changing arc structure can provide stable internal support when the filling layer 3 is inserted, and help the wire cores 2 that are gradually approaching each other to achieve a natural transition, perfectly matching the geometry and stress distribution of the wire core 2 at this point.

[0029] refer to Figure 4 and Figure 5The support rod 2 532 also includes a filling rod 2 5321 with the same shape as the filling rod 1 5311. The outer wall of the filling rod 2 5321 is fitted with a protective sleeve 2 5322 with the same shape as the protective sleeve 1 5312. One end of the protective sleeve 2 5322 near the fixing plate 1 5313 is fixedly connected to the fixing plate 2 5323, and the other end of the fixing plate 2 5323 is fixedly connected to the positioning plate 2 5324.

[0030] In the initial state, such as Figure 2 As shown, the second fixing plate 5323 is flush with the outer port of the connecting outer tube 51. At this time, the first fixing plate 5313 is located at one end of the limiting groove 514 near the second fixing plate 5323. After the wire core 2 passes through the connecting outer tube 51, the operator can push the end of the second support rod 532 with a tool to apply axial force to the second filling rod 5321. The second filling rod 5321 drives the second fixing plate 5323 and the second positioning plate 5324 to move into the cable. Since the second positioning plate 5324 and the first positioning plate 5314 are staggered and the connector 533 is in a retractable state, the second positioning plate 5324 will push the first fixing plate 5313 to move synchronously. The first fixing plate 5313 drives the locking block 5315 from one end of the limiting groove 514 to the other end until it is locked into the end slot, achieving self-locking. At this time, the first filling rod 5311 is precisely locked into the middle of the port of the insulating sleeve 1, providing radial support for the cable end and preventing the outer sheath from retracting. Meanwhile, the assembly formed by the three core wires 2 is stably supported by the outer walls of the protective sleeve 5312 and the positioning plate 5314. Even if the dispersed ends of the core wires 2 move excessively, the outer wall of the positioning plate 5314 and the inner wall of the connecting outer tube 51 will form a limiting structure, effectively preventing the core wires 2 from becoming loose or excessively bent.

[0031] In addition, a locking hole is provided on the outer wall of the connecting outer tube 51, which can be locked by the staff through the external bolt, further increasing the overall stability of the support 53 and the connecting outer tube 51.

[0032] refer to Figure 5 and Figure 7The connector 533 includes a thin rod 5335 fixedly connected to the middle of one end of the fixed plate 5313 away from the filling rod 5311. The thin rod 5335 has L-shaped grooves 5336 equidistantly opened on the outer wall. The grooves 5336 have openings on the side. A spring 5334 is elastically connected to the inner wall of the thin rod 5335. The other end of the spring 5334 is elastically connected to a thick rod 5331. A slider 5333 is fixedly connected to the inner side of the thick rod 5331 at equal intervals. A slider 5332 is fixedly connected to the inner wall of the thick rod 5331 at equal intervals. The length of slider 1 5332 is greater than the length of slider 2 5333, and the width of slider 1 5332 is less than that of slider 2 5333. Both slider 1 5332 and slider 2 5333 are slidably connected to the groove 5336. The width of slider 2 5333 is greater than the opening width of the groove 5336. Therefore, slider 2 5333 cannot be disengaged from the opening, while slider 1 5332 can. In the initial state, the support member 53 is fully housed inside the connecting outer tube 51, facilitating wire threading and initial positioning. The spring 5334 is in a natural or slightly compressed state.

[0033] After the support member 53 is pushed into the connecting outer tube 51, the workers complete the wiring and insulation wrapping of the wire core 2. Then, the support rod 532 is pulled outwards. During this pulling, the fixing plate 5323 moves the thick rod 5331, and the sliders 5332 and 5333 on the thick rod 5331 slide along the groove 5336. When the thick rod 5331 is pulled out to its limit position, slider 5332 completely disengages from the side opening of the groove 5336, while slider 5333, due to its larger width, remains inside the groove 5336.

[0034] Next, the worker rotates support rod 532, causing thick rod 5331 to rotate accordingly, which in turn moves slider 5333 within the short side of the L-shaped groove 5336. This action moves the entire support member 53 from... Figure 4 The contraction state transforms into Figure 5 The extended and locked state. In this state, the relative positions of support rod 1 531 and support rod 2 532 are fixed, providing stable axial support and positioning for the connection area between the wire cores 2.

[0035] After rotation, the further compressed spring 5334 provides a continuous elastic pull force to the thick rod 5331, causing the slider 5333 to be pressed tightly against the short side end of the L-shaped groove 5336, achieving reliable mechanical self-locking and preventing loosening due to vibration during use.

[0036] If unlocking is required, such as for cable maintenance or replacement, simply rotate support rod 532 in the reverse direction to disengage slider 5333 from the short side of L-shaped groove 5336. The spring force of spring 5334 will then automatically push thick rod 5331 back, restoring support member 53 to its original position. Figure 4When the cable is in its retracted state, the entire connector 5 can be easily removed from the cable without damage.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure, characterized in that, include: An insulating sleeve (1) is provided with a wire core (2) on its inner wall. The cavity formed by the wire core (2) and the insulating sleeve (1) is filled with a filling layer (3). A connector (5) is snapped into place at the port of the insulating sleeve (1). The connector (5) includes a connecting outer tube (51) that snaps into place at the port of the insulating sleeve (1). A sealing strip (512) is provided at both ends of the inner wall of the connecting outer tube (51). A limiting ring (511) is fixedly connected to the middle of the inner wall of the connecting outer tube (51). A limiting groove (514) is provided at equal intervals on the inner wall of the limiting ring (511). A support member (53) is slidably connected to the inner wall of the limiting ring (511) through the limiting groove (514). The support member (53) includes a support rod one (531), a support rod two (532), and a connector (533). The support rod one (531) includes a filling rod one (5311) with a tapered side design. The outer wall of the filling rod one (5311) is fitted with a protective sleeve one (5312). The other end of the filling rod one (5311) is fixedly connected to a fixing plate one (5313). The other end of the fixing plate one (5313) is connected to one end of the connector (533). The outer wall of the fixing plate one (5313) is designed with a locking block (5315) along the circumferential direction. The other end of the connector (533) is connected to the support rod two (532). The locking block (5315) is slidably connected to the limiting groove (514). Among them, the fixing plate one (5313) is fixed with a positioning plate one (5314) at equal intervals on the side near the support rod two (532). The support rod two (532) includes a positioning plate two (5324) that is designed to be intersected with the positioning plate one (5314). The outer walls of the positioning plate one (5314) and the positioning plate two (5324) are both designed with an arc shape.

2. The green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure according to claim 1, characterized in that: The inner wall of the limiting groove (514) is designed with a slope. The end of the limiting groove (514) away from the second support rod (532) is provided with a slot that engages with the locking block (5315). The side of the locking block (5315) near the center of the first fixing plate (5313) is provided with a flexible layer (5316).

3. A green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure according to claim 1, characterized in that: The second support rod (532) also includes a second filling rod (5321) with the same shape as the first filling rod (5311). The outer wall of the second filling rod (5321) is fitted with a second protective sleeve (5322) with the same shape as the first protective sleeve (5312). The second protective sleeve (5322) is fixedly connected to a second fixing plate (5323) at one end near the first fixing plate (5313). The other end of the second fixing plate (5323) is fixedly connected to a second positioning plate (5324).

4. A green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure according to claim 1, characterized in that: The limiting ring (511) is provided with a sealing strip (513) on its side, and the sealing strip (513) has a tapered design on its side.

5. A green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure according to claim 3, characterized in that: Both the first fixing plate (5313) and the second fixing plate (5323) have an outward convex design at their ends that are far apart from each other.

6. A green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure according to claim 5, characterized in that: In the initial state, the second fixing plate (5323) is flush with the outer port of the connecting outer tube (51). At this time, the first fixing plate (5313) is located at the end of the limiting groove (514) near the second fixing plate (5323).

7. A green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure according to claim 1, characterized in that: The connector (533) includes a thin rod (5335) fixedly connected to the middle of the end of the fixed plate (5313) away from the filling rod (5311). The thin rod (5335) has L-shaped grooves (5336) equidistantly opened on the outer wall. The grooves (5336) have openings on the side. The inner wall of the thin rod (5335) is elastically connected to a spring (5334). The other end of the spring (5334) is elastically connected to a thick rod (5331). The inner wall of the thick rod (5331) is fixedly connected to a slider (5333) equidistantly. The inner wall of the thick rod (5331) is fixedly connected to a slider (5332) equidistantly.

8. A green, low-carbon, and environmentally friendly cable with an optimized insulation layer structure according to claim 7, characterized in that: The length of slider one (5332) is greater than the length of slider two (5333), the width of slider one (5332) is less than the width of slider two (5333), both slider one (5332) and slider two (5333) are slidably connected to the slide groove (5336), and the width of slider two (5333) is greater than the opening width of the slide groove (5336).

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