Cable

Abstract

The invention relates to the technical field of elastic cables, in particular to a cable, which comprises a conductor, and is characterized in that the conductor comprises a main cable core and a plurality of branch cable cores, and the plurality of branch cable cores are arranged around the main cable core; and the wrapping layer is arranged on the conductor in a sleeving manner. The surrounding structure enables tensile force to be uniformly distributed on the central cable and the multiple strands of branch cables, the tensile force borne by a single cable is greatly reduced, local stress overload is avoided, and the service life of the whole cable is prolonged. The main cable core plays a role in framework supporting, can maintain a spiral basic form and prevent the cable from being excessively deformed, twisted or scattered during stretching, the branch cable cores arranged in a surrounding mode can synchronously stretch and retract along with the spiral structure, and in cooperation with supporting of the center cable, elastic stretching and retracting of the cable are more controllable, and the cable can rapidly rebound to an original state after stretching. The loosening problem that resetting cannot be achieved after stretching does not occur, and cables with different functions can be arranged in a classified mode through the layered structure.

Description

Technical Field

[0001] This invention relates to the field of flexible cable technology, and particularly to a cable. Background Technology

[0002] Flexible cables have a wide range of applications, such as in mechanical manipulators and robotic manipulators. During use, these cables are subject to high-frequency vibration and stretching, resulting in significant damage, mainly concentrated at the ends. As the upper end of the cable is subjected to torsional forces generated during the stretching process, this location experiences severe deformation and breakage, which can cause inconvenience in equipment use. Summary of the Invention

[0003] The purpose of this invention is to provide a cable with better adaptability and the ability to resolve deformation caused by twisting, ensuring that there is no damage between layers, and reducing damage by minimizing the location of deformation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cable, comprising:

[0005] The cable core includes a main cable core and multiple branch cable cores, with the multiple branch cable cores arranged around the main cable core;

[0006] A sheathing layer is fitted onto the cable core. Reinforcing ribs are provided at both ends of the sheathing layer. End caps are fixedly connected to the outer ends of the reinforcing ribs, and the cable core passes through the end caps.

[0007] The cable core uses a central main core surrounded by multiple strands of sub-cores. This design offers several advantages. Traditionally, when a single cable is stretched, stress concentrates on a single conductor and insulation layer, easily leading to copper wire breakage and insulation cracking. This wraparound structure distributes the tensile force evenly across the central cable and the multiple strands, significantly reducing the tensile force on a single cable, preventing localized stress overload, and extending the overall cable lifespan. The main core acts as a skeleton, maintaining the basic spiral shape and preventing excessive deformation, twisting, or scattering during stretching. The wraparound sub-cores expand and contract synchronously with the spiral structure. Combined with the support of the central cable, this makes the cable's elastic expansion and contraction more controllable, allowing it to quickly return to its original state after stretching, avoiding the "unrecoverable after stretching" slack problem. This layered structure allows for the categorization and arrangement of cables with different functions, such as placing power lines in the center and signal and control lines around them. During the stretching process, cables with different functions will not squeeze or entangle each other, ensuring the stability of signal transmission. This also facilitates the addition of branch cables as needed, expanding the cable's functionality. During stretching, the conductor resistance of the cable will fluctuate slightly due to the change in length; the parallel / independent arrangement of multiple branch cables can distribute the current, preventing excessive current in a single cable from causing overheating. Simultaneously, the gaps created by the wrapping structure improve heat dissipation efficiency, reducing the impact of heat accumulation on insulation materials and transmission performance.

[0008] The end cap design restricts the main cable core and branch cable cores, and positions the internal cables to accurately and evenly distribute the tensile force to each main cable and branch cable, preventing individual cables from breaking due to uneven stress. The outer fixing sleeve secures the entire cable, bearing the overall external tensile force and transferring it to the fixing seat, forming an "external pull-internal distribution" force chain, significantly reducing the risk of stress concentration at the ends. The cap internally restricts the relative positions of the main and branch cables, preventing the branch cables from detaching from the central loop track during tension. The fixing sleeve externally tightens the entire cable sheath, preventing cracking and wrinkling of the sheath due to tension, and further locks the overall shape of all cable ends. Even in high-frequency tension-rebound cycles, the center-loop design structure is maintained, preventing cable misalignment and tangling.

[0009] The junction between the outer sheath and the inner cable at the cable end is the weakest point in tensile fatigue. A retaining sleeve enhances the tear resistance of the outer sheath, preventing repeated stretching from causing it to peel off from the inner cable; a cap reinforces the end conductor of each cable, preventing conductor pull-out and loosening. The combination of these two features significantly increases the number of times the end can withstand dynamic stretching, making it particularly suitable for high-frequency motion scenarios such as robot joints and cable chains in automated production lines.

[0010] To ensure a tight seal, external reinforcement, middle reinforcement, wire mesh reinforcement, and reinforcing rings are added at the contact points between the fixing sleeve and the outer sheath, pressure dividing sleeve, wire mesh layer, and inner insulation layer. These components isolate the internal cable from moisture and impurities. The outer fixing sleeve tightly presses against the cable's outer sheath, forming a robust external protective barrier that prevents dust, oil, and corrosive liquids from intruding through the end gaps. It also resists damage to the ends from external impacts and abrasion, enhancing the cable's durability in harsh industrial environments. This multi-layered fixing structure firmly locks the relative positions of the conductor and the sheath, preventing cable displacement and loosening during tension.

[0011] The wrapping layer includes an inner protective layer, on which a wire mesh layer is fitted, on which a pressure-distributing sleeve is fitted, and on which an outer wrapping layer is fitted.

[0012] The pressure-dividing sleeve mainly improves the overall compressive strength. Under spiral tension, the design of the cable protection point is to use larger air bladders at both ends, filled with repair fluid or gas. This directly improves the compressive strength. When deformation occurs, the larger air bladders at the ends can better resist the deformation caused by torsion. When deformation occurs, multiple parts will be compressed, especially with the sandwich structure. The sandwich structure can generate greater displacement changes, so the torsional force can be concentrated in the sandwich structure. The air bladders with the sandwich structure first buffer the deformation. The two air bladders on the inner wall of the sandwich structure generate friction to resist excessive deformation. Then, after compressing the air bladders, the deformation force can be eliminated.

[0013] The multiple large air bladders are interconnected, the multiple medium air bladders are interconnected, and the multiple small air bladders are interconnected. This interconnection between the medium air bladders, large air bladders, and small air bladders allows for better and more even distribution of the pressure generated by the torsional force during compression. It also allows for the extension of the torsional force, thus minimizing the damage to the internal cables caused by the torsional force.

[0014] When torsional force occurs, the torsional force at the upper end is greater. When the metal layer uses a mesh sleeve of the same specification, the deformation at the upper end will increase the deformation of the metal mesh when tortuous. Therefore, a woven wire mesh is set at the end. The woven wire mesh is formed by weaving to create a larger gap, which has a larger deformation allowance. The supporting wire mesh is the transition end, which can ensure that the wire mesh layer can provide better protection under torsion, while also ensuring its service life.

[0015] The protective connection is located inside the reinforcing rib portion. A through groove is provided on the protective connection. The main cable core passes through the through groove. Multiple branch cable cores are bent at the front end of the protective connection to form a bent portion and then embedded into the inner groove. An embedding strip fixes the branch cable cores embedded in the inner groove.

[0016] An elastic band is fitted onto the built-in ball and is fixedly connected to a plurality of embedded rubber strips. An elastic ring is fitted onto the bent portion beyond the protective connection.

[0017] Because the end caps perform many tasks during use and are frequently plugged in, high-frequency vibrations can cause excessive damage to the end cables when used in the robotics field. During conductor pulling or twisting deformation, since the end caps are fixed to the terminal block and other structures are suspended on the fixed sleeve, the internal conductors are subjected to force when the sheathing deforms, resulting in tension between the conductors and the sheathing.

[0018] When the conductor end is stretched, the peripheral cable cores are confined within the embedded groove and bent inward. They are then secured in the embedded groove by the embedded rubber strip, and multiple peripheral cable cores are fixed by the elastic band. When twisting occurs, the bend has sufficient allowance for adjustment when the cap and reinforcing rib rotate relative to each other. Moreover, when stretched, the sheath has elastic deformation allowance, and there is a stretching distance between the fixed end and the sheath. When the internal peripheral cable cores are stretched, the elastic band expands outward. This causes the elastic band to detach the embedded rubber strip from the surface of the peripheral cable core, thus providing a greater range of motion. The elastic ring and elastic band can reset the peripheral cable cores when the tensile force is eliminated.

[0019] Furthermore, the reinforcing rib portion includes an outer reinforcing portion, a middle reinforcing portion, a wire mesh reinforcing portion, and a reinforcing ring. The outer reinforcing portion is integrally formed with the outer sheath, the middle reinforcing portion is integrally formed with the pressure-distributing sleeve, the wire mesh reinforcing portion is integrally formed with the wire mesh layer, and the reinforcing ring is integrally formed with the inner protective layer.

[0020] Furthermore, the middle part of the wire mesh layer uses a small-gap wound wire mesh, and the gap gradually increases towards both ends of the wound wire mesh to form a supporting wire mesh. The supporting wire mesh is then woven towards both ends to form a woven wire mesh with larger gaps.

[0021] Furthermore, the pressure-distributing sleeve has a sandwich portion, the sandwich portion being arranged along a spiral direction, and the sandwich portion being formed by an inner rubber portion and an outer rubber portion being fitted together.

[0022] Furthermore, the inner and outer walls of the interlayer portion are divided into a small air bladder portion located in the middle, and a medium air bladder portion and a large air bladder portion located towards both ends.

[0023] Furthermore, the small airbag portion is a small-volume airbag, the medium airbag portion is a medium-volume airbag, and the large airbag portion is a large-volume airbag, and the interval between two adjacent large airbag portions is greater than the interval between two adjacent medium airbag portions.

[0024] Furthermore, the end cap includes a fixing sleeve, and a cap is provided inside the fixing sleeve.

[0025] Furthermore, the elastic ring is a rubber ring made of rubber.

[0026] The technical effects and advantages of this invention are as follows:

[0027] 1. The wraparound structure distributes tensile force evenly across the central cable and multiple branch cables, significantly reducing the tensile force on individual cables, avoiding localized stress overload, and extending the overall cable lifespan. The main cable core acts as a skeleton support, maintaining the basic spiral shape and preventing excessive deformation, twisting, or scattering of the cable during stretching. The wraparound branch cable cores can expand and contract synchronously with the spiral structure. Combined with the support of the central cable, this makes the cable's elastic expansion and contraction more controllable. After stretching, it can quickly spring back to its original state, avoiding the slack problem of "unable to return to its original state after stretching." This layered structure allows for the classification and arrangement of cables with different functions.

[0028] 2. The retaining sleeve enhances the tear resistance of the outer sheath, preventing repeated stretching from causing the outer sheath to peel off from the internal cable. The cap reinforces the end conductors of each cable, preventing conductor pulling and loosening. The combination of these two elements significantly increases the number of times the ends can withstand dynamic stretching, making it particularly suitable for high-frequency motion scenarios such as robot joints and cable chains in automated production lines. The outer retaining sleeve tightly presses against the cable sheath, forming a robust external protective barrier that prevents external dust, oil, and corrosive liquids from intruding through the end gaps. It also resists damage to the ends from external impacts and abrasion, improving the cable's durability in harsh industrial environments. The multi-layered retaining structure firmly locks the relative positions of the conductor and sheath, preventing cable displacement and loosening during stretching.

[0029] 3. By setting protective connections at the ends of the conductor, the protective connections not only secure the cable but also address the issue of end twisting and entanglement of the surrounding cable cores. When the conductor ends are stretched, the surrounding cable cores are confined within the embedded groove and bent inwards. They are then secured in the embedded groove by the embedded rubber strip, and multiple cable cores are fixed by the elastic band. When twisting occurs, the bend has sufficient leeway to adjust when the cap and reinforcing rib rotate relative to each other. Moreover, when stretched, the sheath has elastic deformation leeway, and there is a stretching distance between the fixed end and the sheath. When the internal cable cores are stretched, the elastic band expands outwards, causing the embedded rubber strip to detach from the surface of the cable core, thus providing a greater range of motion. The elastic ring and elastic band can reset the cable cores when the tensile force is eliminated. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a cable according to the present invention;

[0031] Figure 2 This is a schematic diagram of a voltage divider sleeve for a cable according to the present invention;

[0032] Figure 3 This is a schematic diagram of the wire mesh layer of a cable according to the present invention;

[0033] Figure 4 This is a schematic diagram of the inner insulation layer of a cable according to the present invention;

[0034] Figure 5 This is a partial cross-sectional view of a cable according to the present invention;

[0035] Figure 6 This is a schematic diagram of the wire mesh layer of a cable according to the present invention;

[0036] Figure 7 This invention relates to the design intent of a voltage divider sleeve for a cable.

[0037] Figure 8 This is a schematic diagram of a protective connection for a cable according to the present invention.

[0038] In the picture:

[0039] 1. Outer sheath; 2. Pressure dividing sleeve; 21. Rubber part; 22. Large air bladder part; 23. Middle air bladder part; 24. Small air bladder part; 3. Wire mesh layer; 31. Braided wire mesh; 32. Wrapped wire mesh; 33. Supporting wire mesh; 4. Inner protective layer; 5. End; 51. Fixing sleeve; 52. Cap; 6. Cable core; 61. Main cable core; 62. Branch cable core; 63. Bending part; 7. Protective connection; 71. Built-in ball; 72. Embedded groove; 73. Embedded rubber strip; 74. Through groove; 8. Elastic band; 9. Elastic ring; 10. Reinforcing rib part; 101. External reinforcing part; 102. Middle reinforcing part; 103. Wire mesh reinforcing part; 104. Reinforcing ring. Detailed Implementation

[0040] 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.

[0041] Reference Figure 1 - Figure 8 The present invention provides a cable comprising:

[0042] The cable main core 6 includes a main cable core 61 and multiple branch cable cores 62, with the multiple branch cable cores 62 arranged around the main cable core 61.

[0043] The sheathing layer is sleeved on the main cable core 6. Both ends of the sheathing layer are provided with reinforcing ribs 10. The outer ends of the reinforcing ribs 10 are fixedly connected to end heads 5, and the main cable core 6 passes through the end heads 5.

[0044] The main cable core 6 adopts a central main cable core 61 surrounded by multiple stranded sub-cable cores 62. The advantage of this is that when a traditional single cable is stretched, the stress is concentrated on a single conductor and insulation layer, which can easily lead to the breakage of internal copper wires and the cracking of the insulation layer. This surrounding structure allows the tensile force to be evenly distributed on the central cable and the multiple stranded sub-cables, greatly reducing the tensile force on a single cable, avoiding local stress overload, and extending the overall service life of the cable. The main cable core 61 acts as a skeleton support, maintaining the basic spiral shape and preventing excessive deformation, twisting, or scattering of the cable during stretching. The surrounding sub-cable cores 62 can expand and contract synchronously with the spiral structure. With the support of the central cable, the elastic expansion and contraction of the cable is more controllable. After stretching, it can quickly rebound to its original state without the problem of "unable to return to its original state after stretching". This layered structure allows for the classification and arrangement of cables with different functions. For example, power lines can be placed in the center for support, while signal lines and control lines are surrounded on the outside. During the stretching process, cables with different functions will not squeeze or entangle each other, ensuring the stability of signal transmission. This also facilitates the addition of branch cables as needed, expanding the cable's functionality. During stretching, the conductor resistance of the cable will fluctuate slightly due to the change in length; the parallel / independent arrangement of multiple branch cables can distribute the current, preventing excessive current in a single cable from causing overheating. Simultaneously, the gaps created by the wrapping structure improve heat dissipation efficiency, reducing the impact of heat accumulation on insulation materials and transmission performance.

[0045] The end cap 5 includes a fixing sleeve 51, inside which a cap 52 is installed. The cap 52 restricts the main cable core 61 and the branch cable core 62. The cap 52 positions the inner part of the cable, which can accurately and evenly distribute the tensile force to each main cable and branch cable, and prevent a single cable from breaking due to uneven force and being "pulled alone". The outer fixing sleeve 51 fastens the entire cable outer sheath 1, bears the overall tensile force from the outside, and transmits the external force to the fixing seat, forming a "pull-split" force chain, which greatly reduces the risk of stress concentration at the end. The cap 52 restricts the relative position of the main and branch cables from the inside, preventing the branch cable from leaving the central loop track during stretching. The fixing sleeve 51 tightens the entire cable outer sheath 1 from the outside, preventing the outer sheath from cracking or wrinkling due to stretching. At the same time, it further locks the overall shape of the end of all cables, and can maintain the center-loop design structure even in high-frequency stretch-rebound cycles, without cable misalignment or tangling.

[0046] The junction between the outer sheath and the inner cable at the cable end is the weakest point in tensile fatigue. The retaining sleeve 51 enhances the tear resistance of the outer sheath, preventing repeated stretching from causing it to peel off from the inner cable; the cap 52 reinforces the end conductor of each cable, preventing conductor pull-out and loosening. The combination of these two features significantly increases the number of times the end can withstand dynamic stretching, making it particularly suitable for high-frequency motion scenarios such as robot joints and cable chains in automated production lines.

[0047] The reinforcing rib section 10 includes an outer reinforcing section 101, a middle reinforcing section 102, a wire mesh reinforcing section 103, and a reinforcing ring 104. The outer reinforcing section 101 is integrally formed with the outer sheath 1, the middle reinforcing section 102 is integrally formed with the pressure dividing sleeve 2, the wire mesh reinforcing section 103 is integrally formed with the wire mesh layer 3, and the reinforcing ring 104 is integrally formed with the inner protective layer 4. Of course, in order to ensure the internal sealing effect, the outer reinforcing section 101, the middle reinforcing section 102, the wire mesh reinforcing section 2, the wire mesh layer 3, and the inner protective layer 4 are also provided at the contact positions of the fixing sleeve 51 with the outer sheath 1, the pressure dividing sleeve 2, the wire mesh layer 3, and the inner protective layer 4 to isolate the internal cable from the external moisture and impurities. The outer fixing sleeve 51 can be tightly pressed with the cable outer sheath to form a hard external protective barrier, preventing external dust, oil, and corrosive liquids from entering from the end gaps. At the same time, it can also resist the damage to the end caused by external impact and wear, and improve the durability of the cable in harsh industrial environments. The multi-layered fixing structure can firmly lock the relative position of the conductor and the sheath, and the connection will not loosen due to cable displacement when stretched.

[0048] The wrapping layer includes an inner protective layer 4, a wire mesh layer 3 is fitted on the inner protective layer 4, a pressure-distributing sleeve 2 is fitted on the wire mesh layer 3, and an outer wrapping layer 1 is fitted on the pressure-distributing sleeve 2.

[0049] When installing a flexible cable, during the stretching process, the main stress gradually decreases from top to bottom. Because the cable has to bear the weight of the cable and is pulled under these conditions, the upper part deforms more. Since the cable adopts a multi-layer protective structure, the degree of twisting at the upper end in the spiral deformation direction will increase with the increase of the tensile force.

[0050] Therefore, the wire mesh layer 3 and the pressure dividing sleeve 2 are optimized. Taking the pressure dividing sleeve 2 as an example, the pressure dividing sleeve 2 has a sandwiched part. The sandwiched part is arranged along the spiral direction and is formed by the inner rubber part 21 and the outer rubber part 21. The inner and outer walls of the sandwiched part are formed by the small air bladder part 24 set in the middle position, the medium air bladder part 23 and the large air bladder part 22 set towards both ends. The small air bladder part 24 is a small volume air bladder, the medium air bladder part 23 is a medium volume air bladder, and the large air bladder part 22 is a large volume air bladder. The interval between two adjacent large air bladder parts 22 is greater than the interval between two adjacent medium air bladder parts 23.

[0051] The pressure-dividing sleeve 2 mainly improves the overall compressive strength. Under spiral tension, the design of the cable protection point is that the two ends use larger air bladders 22, which are filled with repair fluid or gas. This directly improves the compressive strength. When deformation occurs, the larger air bladders 22 at the ends can better resist the deformation caused by torsion. When deformation occurs, multiple parts will be compressed, especially with the sandwich structure. The sandwich structure can generate greater displacement changes, so the torsional force can be concentrated in the sandwich structure. The air bladders 22 with the sandwich structure first buffer the deformation. The two air bladders 22 on the inner wall of the sandwich structure generate friction to resist excessive deformation. Then, after compressing the air bladders 22, the deformation force can be eliminated.

[0052] The above design can be further optimized. Theoretically, multiple large air bladder sections 22 can be interconnected, multiple medium air bladder sections 23 can be interconnected, and multiple small air bladder sections 24 can be interconnected. The interconnection of medium air bladder sections 23, large air bladder sections 22, and small air bladder sections 24 can better distribute the pressure generated by the torsional force during compression, and can also extend the torsional force, so that the torsional force will not cause great damage to the internal cable.

[0053] Taking wire mesh layer 3 as an example, the middle part of wire mesh layer 3 uses a small-gap wound wire mesh 32. The gap gradually increases from the wound wire mesh 32 to both ends to form a supporting wire mesh 31. The supporting wire mesh 31 is woven at both ends to form a woven wire mesh 33 with larger gaps. The impact-resistant layer of wire mesh layer 3 is mainly made of metal to prevent puncture. As shown above, when torsional force occurs, the torsional force at the upper end is greater. When the metal layer uses a mesh sleeve of the same specification, the deformation at the upper end will increase the deformation of the metal mesh when twisted. Therefore, a woven wire mesh 33 is set at the end. The woven wire mesh 33 uses a weaving process to form a larger gap, so that the gap has a larger deformation margin. The supporting wire mesh 31 is the transition end, which can ensure that the wire mesh layer 3 can provide better protection under torsion, while also ensuring its service life.

[0054] The protective connection 7 is located inside the reinforcing rib part 10. The protective connection 7 is provided with a through groove 74. The main cable core 61 passes through the through groove 74. Multiple branch cable cores 62 are bent at the front end of the protective connection 7 to form a bent part 63 and then embedded into the inner groove 72. The embedded adhesive strip 73 fixes the branch cable cores 62 embedded in the inner groove 72.

[0055] The elastic band 8 is sleeved on the built-in ball 71 and is fixedly connected to multiple embedded rubber strips 73. The bent part 63 is sleeved with an elastic ring 9 at the position where it passes over the protective connection 7.

[0056] Regarding the design of the internal cable core 6, a protective structure is designed at the end. Since the end performs many tasks and high-frequency plugging during use, when used in the field of robotics, the high-frequency vibration causes excessive damage to the end cable. During the process of conductor pulling or twisting deformation, since the end 5 is fixed on the terminal block and the other structures are suspended on the fixed sleeve 51, when the wrapping layer deforms, the internal conductor is under force and there will be pulling between it and the wrapping layer.

[0057] The aforementioned problems cause a high frequency of damage to the conductor ends, primarily manifested as the risk of conductor end breakage. To address this, a protective connection 7 is installed at the end of the main cable core 6. This connection serves two purposes: firstly, it secures the cable; secondly, because the surrounding sub-cores 62 may experience end-to-end twisting and entanglement, when the end of the main cable core 6 is stretched, the surrounding sub-cores 62 are confined within the inner groove 72 and bent inwards. They are then secured within the inner groove 72 by an embedded adhesive strip 73, and finally fixed by an elastic band 8. Furthermore, when twisting occurs... When bending, the cap 52 and the reinforcing rib 10 rotate relative to each other, and the bending part 63 has enough margin for adjustment. Moreover, when stretched, the wrapping layer has elastic deformation margin, and there is a stretching distance between the fixed end 5 and the wrapping layer. When the internal cable core 62 is stretched, the elastic band 8 will expand outward. In this way, the elastic band 8 drives the embedded rubber strip 73 to separate from the surface of the cable core 62, thus having a larger range of motion. The elastic ring 9 and the elastic band 8 can reset the cable core 62 when the tensile force is eliminated. The elastic ring 9 is a rubber ring made of rubber.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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, characterized in that, include: The cable core (6) includes a main cable core (61) and multiple branch cable cores (62), and the multiple branch cable cores (62) are arranged around the main cable core (61); The wrapping layer is sleeved on the main core of the cable (6). Both ends of the wrapping layer are provided with reinforcing ribs (10). The outer end of the reinforcing ribs (10) is fixedly connected to the end (5), and the main core of the cable (6) passes through the end (5). The wrapping layer includes an inner protective layer (4), on which a wire mesh layer (3) is fitted, on which a pressure-distributing sleeve (2) is fitted, and on which an outer wrapping layer (1) is fitted. The protective connection (7) is located inside the reinforcing rib (10). The protective connection (7) is provided with a through groove (74). The main cable core (61) passes through the through groove (74). Multiple branch cable cores (62) are bent at the front end of the protective connection (7) to form a bent portion (63) and then embedded into the inner groove (72). The embedded adhesive strip (73) fixes the branch cable cores (62) embedded in the inner groove (72). An elastic band (8) is fitted on the built-in ball (71) and fixedly connected to a plurality of embedded rubber strips (73). An elastic ring (9) is fitted on the bent portion (63) beyond the protective connection (7).

2. The cable according to claim 1, characterized in that, The reinforcing rib portion (10) includes an outer reinforcing portion (101), a middle reinforcing portion (102), a wire mesh reinforcing portion (103), and a reinforcing ring (104). The outer reinforcing portion (101) is integrally formed with the outer cladding layer (1), the middle reinforcing portion (102) is integrally formed with the pressure-distributing sleeve (2), the wire mesh reinforcing portion (103) is integrally formed with the wire mesh layer (3), and the reinforcing ring (104) is integrally formed with the inner protective layer (4).

3. The cable according to claim 2, characterized in that, The middle part of the wire mesh layer (3) is made of a small-gap winding wire mesh (32), and the gap is gradually increased from the winding wire mesh (32) to both ends to form a support wire mesh (31). The support wire mesh (31) is made of a weaving process to both ends to form a woven wire mesh (33) with a larger gap.

4. The cable according to claim 3, characterized in that, The pressure-dividing sleeve (2) has a sandwiched portion, which is arranged along a spiral direction, and the sandwiched portion is formed by an inner rubber portion (21) and an outer rubber portion (21).

5. A cable according to claim 4, characterized in that, The inner and outer walls of the interlayer are both formed by a small air bladder (24) located in the middle, and gradually transition to a medium air bladder (23) and a large air bladder (22) located at both ends.

6. A cable according to claim 5, characterized in that, The small airbag portion (24) is a small-volume airbag, the medium airbag portion (23) is a medium-volume airbag, and the large airbag portion (22) is a large-volume airbag, and the interval between two adjacent large airbag portions (22) is greater than the interval between two adjacent medium airbag portions (23).

7. A cable according to claim 6, characterized in that, The end (5) includes a fixing sleeve (51), and a cap (52) is provided inside the fixing sleeve (51).

8. A cable according to claim 7, characterized in that, The elastic ring (9) is a rubber ring made of rubber.

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