A cable having a multi-layer composite protective structure

Abstract

The application discloses a cable with a multilayer composite protection structure and relates to the technical field of cables.The cable comprises a cable outer skin and an inner core, a plurality of first support layers are fixedly connected to the inner surface of the cable outer skin at equal intervals, the inner surfaces of the plurality of first support layers are all fixedly connected with honeycomb layers, and the inner surfaces of the plurality of honeycomb layers are all fixedly connected with second support layers.In the application, when the cable is ready to be laid, the end surface of the protective sleeve roll can be pulled to tear out the protective sleeve roll, the protective sleeve roll can be wrapped around the surface of the cable after being pulled out, thereby playing a protective role on the cable outer skin and avoiding damage of the cable outer skin caused by external force collision, when the protective sleeve roll is damaged, the protective sleeve roll can continue to be pulled out and wrapped on the outer wall of the cable through the setting of the relatively thick protective sleeve roll outside the roll roller, the replacement of the protective sleeve roll is facilitated, the maintenance work on the cable is more convenient and fast, and the maintenance cost of the cable is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of cable technology, specifically to a cable with a multi-layer composite protection structure. Background Technology

[0002] A cable is a collection of conductors used to transmit electrical energy or signals. It consists of multiple insulated conductors and an outer protective material. Cables are mainly used in power transmission, communication, data transmission, and various electronic devices and electrical systems.

[0003] In the prior art, such as the composite cable with pressure resistance disclosed in application publication number CN 106952685 A, a composite cable with pressure resistance is described. This cable includes an aluminum-plastic composite tube and multiple cable conductors. The cable conductors are wrapped with a surface plastic insulation layer. The outer surface of the aluminum-plastic composite tube is wrapped with a rubber wear-resistant layer. A semi-rigid PE plastic tube is located inside the aluminum-plastic composite tube. A PET polyester film is coaxially arranged on the outer side of the semi-rigid PE plastic tube. Multiple first steel wires are arranged between the PET polyester film and the semi-rigid PE plastic tube. Multiple rubber buffer pads are arranged between the PET polyester film and the aluminum-plastic composite tube. A second steel wire is located inside the semi-rigid PE plastic tube. The plastic insulation layer is located between the outer surface of the second steel wire and the inner surface of the semi-rigid PE plastic tube. This invention has a simple structure, which not only improves the pressure resistance of the cable but also protects the cable conductors, thereby improving the overall safety performance of the cable and extending its service life.

[0004] While existing cables can be protected during production by optimizing their internal structure and adding protective layers to safeguard the inner cable core, the outermost layer is still made of rubber. During cable installation and use, external impacts can cause damage to the cable sheath. In such cases, workers need to weld a layer of sheath to the damaged area for repair. This repair requires many tools and takes a considerable amount of time, resulting in high maintenance costs for cables.

[0005] Therefore, we propose a cable with a multi-layered composite protection structure to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a cable with a multi-layer composite protection structure to solve the problem mentioned in the background art that when a cable is subjected to an external impact, the cable sheath will be damaged. At this time, workers need to weld an outer layer of sheath to the damaged position of the cable for repair. The repair requires the use of many tools and takes a lot of time, which makes the cable maintenance work costly.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cable with a multi-layer composite protection structure, comprising: a cable sheath and an inner core, wherein a plurality of first support layers are fixedly connected at equal intervals to the inner surface of the cable sheath, a honeycomb layer is fixedly connected to the inner surface of each of the plurality of first support layers, a second support layer is fixedly connected to the inner surface of each of the plurality of honeycomb layers, an insulation layer is fixedly connected between the inner surfaces of the plurality of second support layers, and a plurality of cable cores are uniformly disposed inside the insulation layer; a protection assembly, wherein the protection assembly is fixedly connected to the outer surface of the cable sheath, the protection assembly comprising a thin film layer, and collars are symmetrically fixedly connected to the outer surface of the thin film layer; and an installation assembly, wherein the number of installation assemblies is set to... Two mounting components are respectively fixedly connected to the outer surfaces of two collars. Each mounting component includes a connecting seat, a first splicing block, and a second splicing block. A support component is fixedly connected between the outer surfaces of the two first splicing blocks. The support component includes a first mounting seat and a second mounting seat. A mounting rod is fixedly connected to the inner surface of the first mounting seat, and a first rotating block is rotatably connected to the outer surface of the mounting rod. A support plate is fixedly connected to the top of the first rotating block. An unwinding component is fixedly connected to the top of the support plate. The unwinding component includes an unwinding seat. A fixing component is fixedly connected to the top of the support plate. The fixing component includes a bracket.

[0008] Preferably, the inner core is located inside the cable core, and a foam layer is disposed inside the insulation layer, with the foam layer located between the inner core and the cable core.

[0009] Preferably, the cable sheath end face is provided with multiple through holes evenly, the outer surface of the collar is provided with multiple circular grooves evenly, and the inner surfaces of the multiple circular grooves are fixedly connected to airbags.

[0010] Preferably, a fixing ring is fixedly connected to the outer surface of each of the two collars on an adjacent side, and a sliding groove is formed on the outer surface of each of the two fixing rings on an adjacent side.

[0011] Preferably, multiple rollers are slidably connected to the inner surfaces of both grooves, a support rod is fixedly connected between the two rollers, and a sleeve is fixedly connected to the outer surface of the support rod.

[0012] Preferably, the inner surface of the connecting seat is fixedly connected to the support shaft, and the first splicing block and the second splicing block are rotatably connected to the outer surface of the support shaft. The first splicing block and the second splicing block form a ring shape. The inner surfaces of the first splicing block and the second splicing block are both in contact with the outer surface of the collar. A first bolt is provided on the inner surface of the first splicing block, and the first splicing block and the second splicing block are fixedly installed by the first bolt.

[0013] Preferably, the bottom of the support plate is fixedly connected to the second rotating block, and the inner surface of the second mounting base is provided with a second bolt, and the second mounting base and the second rotating block are fixedly connected by the second bolt.

[0014] Preferably, a connecting rod is provided on the inner surface of the unwinding seat, a winding roller is provided on the outer surface of the connecting rod, and a protective sleeve is provided on the outer surface of the winding roller.

[0015] Preferably, a rubber pad is provided at the bottom of the bracket, multiple springs are fixedly connected at equal intervals at the top of the bracket, a clamp is fixedly connected between the lower end faces of the multiple springs, multiple spikes are evenly fixedly connected to the bottom of the clamp, and the protective sleeve roll is positioned to match the clamp.

[0016] Preferably, the top of the clamping plate is symmetrically and fixedly connected with tie rods, the tie rods slide through the bracket and extend to the upper side, and a pull plate is fixedly connected between the upper end faces of the two tie rods.

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

[0018] 1. When preparing to lay the cable, pulling the end face of the protective sleeve roll will pull it out. After being pulled out, the protective sleeve roll can wrap around the surface of the cable, thus protecting the cable sheath and preventing it from being damaged by external impact. If the protective sleeve roll is damaged, the thicker protective sleeve roll on the outside of the roll can be pulled out to wrap around the outer wall of the cable, which facilitates the replacement of the protective sleeve roll. This makes cable maintenance more convenient and quick, and effectively reduces cable maintenance costs.

[0019] 2. When the cable is subjected to external pressure, the transmitted force is applied to the sleeve. The sleeve will roll after being subjected to the force, thereby guiding the external force into the rotation of the sleeve, which plays a good role in relieving the force and thus protecting the cable and improving its protective performance.

[0020] 3. The foam layer provides soft support for the cable core, which can provide good buffer protection for the cable core. During cable use, it can prevent the cable core from being damaged by compression, thus extending the service life of the cable. When the cable sheath is squeezed by external force, the through-hole position will be squeezed and deformed, which plays a role in buffering and absorbing external force, preventing the cable core from being squeezed and damaged. In conjunction with the air bladder set on the outside of the collar, the air bladder can effectively absorb and buffer external force when subjected to force, thereby further improving the cable's buffer pressure resistance performance. Attached Figure Description

[0021] Figure 1 This is a perspective view of a cable with a multi-layer composite protection structure according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a cable with a multi-layer composite protection structure according to the present invention;

[0023] Figure 3 This is a schematic diagram of the protective component structure of a cable with a multi-layer composite protective structure according to the present invention;

[0024] Figure 4 This is a schematic diagram of an installation assembly structure for a cable with a multi-layer composite protection structure according to the present invention.

[0025] Figure 5 This is a schematic diagram of a support component structure for a cable with a multi-layer composite protection structure according to the present invention.

[0026] Figure 6 This is a schematic diagram of the unwinding assembly structure of a cable with a multi-layer composite protection structure according to the present invention.

[0027] Figure 7 This is a schematic diagram of a cable fixing assembly with a multi-layer composite protection structure according to the present invention.

[0028] Figure 8 This is a schematic diagram of a cable fixing assembly with a multi-layer composite protection structure according to the present invention.

[0029] In the picture:

[0030] 1. Cable sheath; 2. Protective components; 201. Thin film layer; 202. Collar; 203. Circular groove; 204. Airbag; 205. Fixing ring; 206. Slide groove; 207. Roller; 208. Support rod; 209. Sleeve; 3. Mounting components; 301. Connecting seat; 302. Support shaft; 303. First splicing block; 304. Second splicing block; 305. First bolt; 4. Support components; 401. First mounting seat; 402. Mounting rod; 403. First rotating block; 404. Support plate; 40 5. Second rotating block; 406. Second mounting base; 407. Second bolt; 5. Unwinding assembly; 501. Unwinding seat; 502. Connecting rod; 503. Roller; 504. Protective sleeve roll; 6. Fixing assembly; 601. Bracket; 602. Spring; 603. Clamping plate; 604. Spike; 605. Rubber pad; 606. Pull rod; 607. Pull plate; 7. Through hole; 8. First support layer; 9. Honeycomb layer; 10. Second support layer; 11. Insulation layer; 12. Inner core; 13. Cable core; 14. Foaming layer. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-8 The present invention provides a technical solution: a cable with a multi-layer composite protection structure, comprising: a cable sheath 1 and an inner core 12, wherein a plurality of first support layers 8 are fixedly connected at equal intervals to the inner surface of the cable sheath 1, a honeycomb layer 9 is fixedly connected to the inner surface of each of the plurality of first support layers 8, a second support layer 10 is fixedly connected to the inner surface of each of the plurality of honeycomb layers 9, an insulation layer 11 is fixedly connected between the inner surfaces of the plurality of second support layers 10, and a plurality of cable cores 13 are uniformly arranged inside the insulation layer 11; a protection component 2, which is fixedly connected to the outer surface of the cable sheath 1, and the protection component 2 includes a thin film layer 201, with collars 202 symmetrically fixedly connected to the outer surface of the thin film layer 201; and two mounting components 3, which are respectively fixedly connected to the cable sheath 1. The outer surfaces of the two collars 202 are fitted with the following components: mounting assembly 3 includes a connecting seat 301, a first splicing block 303, and a second splicing block 304; support assembly 4 is fixedly connected between the outer surfaces of the two first splicing blocks 303, and includes a first mounting seat 401 and a second mounting seat 406; the inner surface of the first mounting seat 401 is fixedly connected to a mounting rod 402, the outer surface of the mounting rod 402 is rotatably connected to a first rotating block 403, and the top of the first rotating block 403 is fixedly connected to a support plate 404; unwinding assembly 5 is fixedly connected to the top of the support plate 404, and includes an unwinding seat 501; and fixing assembly 6 is fixedly connected to the top of the support plate 404, and includes a bracket 601.

[0033] like Figure 1 and Figure 2 As shown, the inner core 12 is located inside the cable core 13. A foam layer 14 is provided inside the insulation layer 11, and the foam layer 14 is located between the inner core 12 and the cable core 13. The foam layer 14 and the inner core 12 cooperate to provide support for the cable core 13. The inner core 12 can prevent the cable cores 13 from contacting each other when the cable core 13 is bent, thereby providing support for the bending position of the cable core 13 and improving the overall toughness of the cable. The foam layer 14 limits and fixes the position of the cable core 13 and the inner core 12. The foam layer 14 provides soft support and can play a good role in buffering and protecting the cable core 13. During the use of the cable, it can prevent the cable core 13 from being damaged by compression, thereby improving the service life of the cable.

[0034] like Figures 1-3As shown, multiple through holes 7 are evenly opened on the end face of the cable sheath 1, and multiple circular grooves 203 are evenly opened on the outer surface of the collar 202. Airbags 204 are fixedly connected to the inner surface of the multiple circular grooves 203. With the setting of the through holes 7, when the cable sheath 1 is squeezed by external force, the position of the through holes 7 will be squeezed and deformed, which plays a role in buffering and absorbing external force, and preventing the cable core 13 from being squeezed and damaged. With the setting of the airbags 204 on the outside of the collar 202, the airbags 204 can effectively absorb and buffer external force when subjected to force, thereby further improving the buffering and pressure resistance performance of the cable.

[0035] like Figure 3 As shown, a fixing ring 205 is fixedly connected to the outer surface of each of the two collars 202 on adjacent sides. A sliding groove 206 is opened on the outer surface of each of the two fixing rings 205 on adjacent sides. The sliding groove 206 can provide support for the roller 207, and the roller 207 can rotate freely inside the sliding groove 206.

[0036] like Figure 3 As shown, multiple rollers 207 are slidably connected to the inner surfaces of the two grooves 206. A support rod 208 is fixedly connected between the two rollers 207. A sleeve 209 is fixedly connected to the outer surface of the support rod 208. Through its connection with the support rod 208, the sleeve 209 can rotate with the rollers 207. When the cable is squeezed by external force, the transmitted force is applied to the sleeve 209. After being subjected to force, the sleeve 209 will roll, thereby guiding the external force into the rotation of the sleeve 209, which plays a good role in unloading force and thus protects the cable and improves the protection performance of the cable.

[0037] like Figure 4 As shown, the inner surface of the connecting seat 301 is fixedly connected to the support shaft 302. The first splicing block 303 and the second splicing block 304 are both rotatably connected to the outer surface of the support shaft 302. The first splicing block 303 and the second splicing block 304 form a ring shape. The inner surfaces of both the first splicing block 303 and the second splicing block 304 are in contact with the outer surface of the collar 202. A first bolt 305 is provided on the inner surface of the first splicing block 303. The first splicing block 303 and the second splicing block 304 are fixedly installed by the first bolt 305. [The last sentence appears to be incomplete and possibly refers to a technical detail about the first splicing block 303 and the second splicing block 304.] When installing the splicing block 304, the connecting seat 301 is placed on the outside of the collar 202. Through the connection of the support shaft 302, both the first splicing block 303 and the second splicing block 304 can rotate. The first splicing block 303 and the second splicing block 304 can rotate to form a ring that fits on the outside of the collar 202. The first splicing block 303 and the second splicing block 304 can be clamped and fixed on the outside of the collar 202 by the first bolt 305. Then the support plate 404 can be installed.

[0038] like Figure 5As shown, the second rotating block 405 is fixedly connected to the bottom of the support plate 404, and the second bolt 407 is provided on the inner surface of the second mounting base 406. The second mounting base 406 and the second rotating block 405 are fixedly connected by the second bolt 407. After the installation of the first splicing block 303 and the second splicing block 304 is completed, the support plate 404 can be rotated through the connection of the first rotating block 403 and the mounting rod 402. The support plate 404 is rotated down, so that the second rotating block 405 is located inside the second mounting base 406. The second rotating block 405 and the second mounting base 406 can be clamped and fixed by the second bolt 407. After the support plate 404 is installed, it is parallel to the cable, so that the unwinding assembly 5 and the fixing assembly 6 can be used.

[0039] like Figure 6 As shown, a connecting rod 502 is provided on the inner surface of the unwinding seat 501, a winding roller 503 is provided on the outer surface of the connecting rod 502, and a protective sleeve roll 504 is provided on the outer surface of the winding roller 503. Because the winding roller 503 is fitted over the connecting rod 502, the winding roller 503 can rotate freely. When the cable is ready to be laid, pulling the end face of the protective sleeve roll 504 can pull it out. After being pulled out, the protective sleeve roll 504 can wrap around the surface of the cable. After the protective sleeve roll 504 wraps around the cable sheath 1 once, when the cable is impacted, it will first... The protective sleeve roll 504 bears the force, thus protecting the cable sheath 1 and preventing it from being damaged by external impact. When the protective sleeve roll 504 is damaged by impact, the thicker protective sleeve roll 504 on the outside of the roller 503 provides a larger reserve of the protective sleeve roll 504. After the damaged protective sleeve roll 504 is cut off, it can continue to be pulled out to wrap around the outer wall of the cable and protect the cable sheath 1. This facilitates the replacement of the protective sleeve roll 504 and makes cable maintenance more convenient and quick.

[0040] like Figure 7 and Figure 8As shown, a rubber pad 605 is provided at the bottom of the bracket 601. Multiple springs 602 are fixedly connected at equal intervals to the top of the bracket 601. A clamping plate 603 is fixedly connected between the lower ends of the multiple springs 602. Multiple spikes 604 are evenly fixedly connected to the bottom of the clamping plate 603. The protective sleeve roll 504 is positioned to cooperate with the clamping plate 603. After the protective sleeve roll 504 is pulled out and wrapped around the outer wall of the cable, the end of the protective sleeve roll 504 is positioned inside the bracket 601. Pulling the pull plate 607 can drive the clamping plate 603 upward through the connection of the pull rod 606. When the clamping plate 603 moves upward, it will cause the spring 602 to be in a compressed state. After the clamping plate 603 moves upward, it will insert the protective sleeve roll 504 between the rubber pad 605 and the clamping plate 603. Then, the pull plate 607 is released, and the spring 602 can be used to drive the clamping plate 603 to move downward to clamp and fix the protective sleeve roll 504. Through the setting of the spike 604 at the bottom of the clamping plate 603, it can pass through the protective sleeve roll 504 and be inserted into the rubber pad 605 to complete the fixation of the protective sleeve roll 504. The fixing force of the protective sleeve roll 504 is relatively stable.

[0041] like Figure 7 and Figure 8 As shown, the top of the clamping plate 603 is symmetrically and fixedly connected to the pull rod 606. The pull rod 606 slides through the bracket 601 and extends to the upper side. The upper end face of the two pull rods 606 is fixedly connected to the pull plate 607. When replacing the protective sleeve roll 504, pulling the pull plate 607 upward can move the clamping plate 603 away. After the clamping plate 603 is moved away, the protective sleeve roll 504 can be taken out. The replacement operation of the protective sleeve roll 504 is more convenient and quick, improving work efficiency.

[0042] The usage and working principle of this device are as follows: During cable production and use, the inner core 12 prevents the cable cores 13 from contacting each other when they are bent, thus providing support for the bending position of the cable cores 13 and improving the overall toughness of the cable. The foam layer 14 limits and fixes the position of the cable cores 13 and the inner core 12, providing soft support and good buffering protection for the cable cores 13. During cable use, it prevents damage to the cable cores 13 caused by compression, thus extending the cable's service life. When the cable sheath 1 is subjected to external pressure, the through-hole 7 will deform, acting as a buffer to absorb external force and prevent damage to the cable cores 13. This works in conjunction with the air bladder 20 on the outside of the collar 202. With configuration 4, the airbag 204 can effectively absorb and buffer external forces when subjected to stress, thereby further improving the cable's buffering and withstand voltage performance. When the cable is squeezed by external forces, the transmitted force is applied to the sleeve 209. After being subjected to force, the sleeve 209 will roll, thus guiding the external force into the rotation of the sleeve 209, playing a good role in stress relief, thereby protecting the cable and improving its protective performance. The first splicing block 303 and the second splicing block 304 can be clamped and fixed on the outer side of the collar 202 by the first bolt 305. Then, the support plate 404 can be installed. The support plate 404 is rotated down, so that the second rotating block 405 is located on the inner side of the second mounting base 406. The second bolt 405 is used to fix the second splicing block 303 and the second splicing block 304 on the outer side of the collar 202. Then, the support plate 404 can be installed. The support plate 404 is rotated down, so that the second rotating block 405 is located on the inner side of the second mounting base 406. 07. The second rotating block 405 and the second mounting base 406 can be clamped and fixed. After the support plate 404 is installed, it is parallel to the cable, so that the unwinding assembly 5 and the fixing assembly 6 can be used. When the cable is ready to be laid, pulling the end face of the protective sleeve roll 504 can pull out the protective sleeve roll 504. After the protective sleeve roll 504 is pulled out, it can wrap around the surface of the cable, thereby protecting the cable sheath 1 and preventing the cable sheath 1 from being damaged by external force. If the protective sleeve roll 504 is damaged, by setting a thicker protective sleeve roll 504 on the outside of the roller 503, the protective sleeve roll 504 can continue to be pulled out and wrapped around the outer wall of the cable, which facilitates the replacement of the protective sleeve roll 504 and makes cable maintenance easier. The operation is relatively convenient and quick. Pulling the pull plate 607, connected to the pull rod 606, moves the clamping plate 603 upward. The upward movement of the clamping plate 603 compresses the spring 602, placing the protective sleeve roll 504 between the rubber pad 605 and the clamping plate 603. Releasing the pull plate 607 allows the spring 602 to return, causing the clamping plate 603 to descend and clamp the protective sleeve roll 504 in place. The spikes 604 at the bottom of the clamping plate 603 can penetrate the protective sleeve roll 504 and embed themselves into the rubber pad 605, securing the roll. The clamping force on the protective sleeve roll 504 is relatively stable. When replacing the protective sleeve roll 504, pulling the pull plate 607 upward moves the clamping plate 603 away.After removing the clamp 603, the protective sleeve roll 504 can be taken out, making the replacement of the protective sleeve roll 504 convenient and quick, thus improving work efficiency.

[0043] 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 cable with a multi-layer composite protection structure, characterized in that, include: The cable has an outer sheath (1) and an inner core (12). Multiple first support layers (8) are fixedly connected at equal intervals on the inner surface of the outer sheath (1). A honeycomb layer (9) is fixedly connected to the inner surface of each of the multiple first support layers (8). A second support layer (10) is fixedly connected to the inner surface of each of the multiple honeycomb layers (9). An insulation layer (11) is fixedly connected to each of the multiple second support layers (10). Multiple cable cores (13) are uniformly arranged inside the insulation layer (11). The protective component (2) is fixedly connected to the outer surface of the cable sheath (1). The protective component (2) includes a thin film layer (201), and the outer surface of the thin film layer (201) is symmetrically fixedly connected with collars (202). The number of the mounting components (3) is set to two, and the two mounting components (3) are respectively fixedly connected to the outer surface of the two collars (202). The mounting components (3) include a connecting seat (301), a first splicing block (303) and a second splicing block (304). Support component (4) is fixedly connected between the outer surfaces of two first splicing blocks (303). The support component (4) includes a first mounting base (401) and a second mounting base (406). The inner surface of the first mounting base (401) is fixedly connected to a mounting rod (402). The outer surface of the mounting rod (402) is rotatably connected to a first rotating block (403). The top of the first rotating block (403) is fixedly connected to a support plate (404). An unwinding assembly (5) is fixedly connected to the top of a support plate (404), and the unwinding assembly (5) includes an unwinding seat (501). Fixing component (6), which is fixedly connected to the top of support plate (404), the fixing component (6) includes bracket (601); A fixing ring (205) is fixedly connected to the outer surface of each of the two collars (202) on an adjacent side, and a sliding groove (206) is opened on the outer surface of each of the two fixing rings (205) on an adjacent side. Multiple rollers (207) are slidably connected to the inner surfaces of the two grooves (206), and a support rod (208) is fixedly connected between the two rollers (207). A sleeve (209) is fixedly connected to the outer surface of the support rod (208). The inner surface of the connecting seat (301) is fixedly connected to the support shaft (302). The first splicing block (303) and the second splicing block (304) are rotatably connected to the outer surface of the support shaft (302). The first splicing block (303) and the second splicing block (304) form a ring shape. The inner surfaces of the first splicing block (303) and the second splicing block (304) are in contact with the outer surface of the collar (202). The first splicing block (303) is provided with a first bolt (305). The first splicing block (303) and the second splicing block (304) are fixedly installed by the first bolt (305). The support plate (404) is fixedly connected to the bottom of the second rotating block (405), and the second mounting base (406) is provided with a second bolt (407). The second mounting base (406) and the second rotating block (405) are fixedly connected by the second bolt (407). A connecting rod (502) is provided on the inner surface of the unwinding seat (501), a winding roller (503) is provided on the outer surface of the connecting rod (502), and a protective sleeve (504) is provided on the outer surface of the winding roller (503). A rubber pad (605) is provided at the bottom of the bracket (601). Multiple springs (602) are fixedly connected at equal intervals at the top of the bracket (601). A clamping plate (603) is fixedly connected between the lower end faces of the multiple springs (602). Multiple spikes (604) are evenly fixedly connected to the bottom of the clamping plate (603). The protective sleeve roll (504) is positioned to match the clamping plate (603). The top of the clamp (603) is symmetrically connected to the pull rod (606), the pull rod (606) slides through the bracket (601) and extends to the upper side, and the upper end face of the two pull rods (606) is fixedly connected to the pull plate (607).

2. The cable with a multi-layer composite protection structure according to claim 1, characterized in that: The inner core (12) is located inside the cable core (13), and a foam layer (14) is provided inside the insulation layer (11). The foam layer (14) is located between the inner core (12) and the cable core (13).

3. The cable with a multi-layer composite protection structure according to claim 1, characterized in that: Multiple through holes (7) are evenly opened on the end face of the cable sheath (1), and multiple circular grooves (203) are evenly opened on the outer surface of the collar (202). Airbags (204) are fixedly connected to the inner surfaces of the multiple circular grooves (203).

Images