A compressive self-repairing cable

Abstract

The present invention relates to the field of cables, specifically a pressure-resistant self-repairing cable, comprising a cable core; a filling layer, the filling layer being sleeved on the cable core, the inner wall of the filling layer being provided with a plurality of triangular grooves 1 at equal distances in the axial direction, the outer wall of the filling layer being provided with a plurality of triangular grooves 2 at equal distances corresponding to triangular groove 1, the inner and outer surfaces of the filling layer being provided with a plurality of annular triangular grooves 3 at intervals in the axial direction, and the intersection of the outer triangular grooves 3 and 2 and the inner triangular grooves 3 and 1 being provided with a platform-shaped waist groove that communicates with each other inside and outside. When the cable is used at a construction site, if the cable is hung or a moving object contacts the cable, causing the cable to twist on both sides of the contact area, the above-mentioned design can effectively solve the problem of damage to the cable core in the cable caused by such situations.

Description

Technical Field

[0001] The present invention relates to the field of cables, in particular to a compression-resistant self-repairing cable. Background Art

[0002] A cable is a rope-like cable made of several or several groups of conductors (at least two in each group). Each group of conductors is insulated from each other and often twisted around a core. The entire cable is covered with a highly insulating layer. It can also be said to be a wire made of one or more mutually insulated conductors and an outer insulating protective layer to transmit electricity or information from one place to another.

[0003] The cables commonly used in construction sites are generally laid randomly. Most of the cables are placed on the ground and are often compressed. During the use of such cables, they are severely worn and prone to the risk of rupture. In addition, in the process of extending the cables, electrical tape is generally used to connect the extended cables and then wrap them around them. In this way, the cable connections are not aesthetically pleasing after repair, and there is also a risk of leakage at the connections, which is unsafe, especially in construction environments. Summary of the Invention

[0004] The object of the present invention is to provide a cable for outdoor use, which has the advantages of good compression resistance, anti-twisting, convenient wiring and repairable local damage.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a compression-resistant self-repairing cable, comprising:

[0006] Cable core;

[0007] A filling layer, the filling layer is sleeved on the cable core, the inner wall of the filling layer is provided with a plurality of triangular grooves 1 at equal distances along the axial direction, the outer wall of the filling layer corresponding to the triangular groove 1 is provided with a plurality of triangular grooves 2 at equal distances, the inner and outer surfaces of the filling layer are provided with a plurality of annular triangular grooves 3 at intervals along the axial direction, and a table-shaped waist groove communicating with each other is provided at the intersection of the triangular groove 3 and the triangular groove 2 on the outside and at the intersection of the triangular groove 3 and the triangular groove 1 on the inside;

[0008] An outer covering layer, the outer covering layer is wrapped on the filling layer, and the inner wall of the outer covering layer is embedded in the outer surface of the filling layer, the outer covering layer includes a plurality of arc-shaped adapting strips, and the plurality of adapting strips are wrapped by a traction sleeve and pressed into the filling layer;

[0009] The foreskin is sleeved on the surface of the outer covering layer.

[0010] Furthermore, the filling layer includes a plurality of inner expansion rings and a plurality of outer expansion rings, and the plurality of inner expansion rings and outer expansion rings are alternately arranged.

[0011] Furthermore, the cable core includes a ring core and a main core;

[0012] The ring core includes an outer buffer sleeve and an inner buffer sleeve, an annular gap is provided between the outer buffer sleeve and the inner buffer sleeve, and cable fixing grooves are provided on opposite sides of the outer buffer sleeve and the inner buffer sleeve, and an external cable is provided in the cable fixing groove.

[0013] Furthermore, a stable support layer is sleeved on the ring core, and the stable support layer includes a hard ring, and a triangular strip is provided on the hard ring to fit on an inner wall of the triangular groove.

[0014] Furthermore, the adaptation strip includes a fitting arc-shaped silicone layer, the inner wall of the fitting arc-shaped silicone layer is provided with a plurality of granular protrusions filling the inner cavity outside the stage-shaped waist groove, one side of the granular protrusion is fixedly connected to an embedded part located in the middle cavity of the stage-shaped waist groove, and a triangular fitting strip that is adapted to the triangular groove is provided between the longitudinal granular protrusions.

[0015] Furthermore, it also includes a fixed limiting part, which is fixedly connected to one side of the embedded part, and the fixed limiting part is fixedly connected to the inner wall of the terrace-shaped waist groove.

[0016] Furthermore, the traction sleeve includes a steel mesh bar, the steel mesh bar is located between two adjacent fitting arc-shaped silicone layers, the inner side of the steel mesh bar is provided with adapting teeth, and the adapting teeth are fitted in a plurality of triangular grooves arranged in an annular shape at intervals;

[0017] It also includes a hard strip, which is adhered to the fitting arc-shaped silicone layer and is fixedly connected to two adjacent steel mesh strips.

[0018] Furthermore, the inner expansion ring includes an outer bag part and a connecting solid part located in the outer ring, the outer bag part and the connecting solid part are fixedly connected, a connecting hole is provided on the connecting solid part, an expansion bag is provided at the bottom of the connecting solid part, an expansion block is fixedly connected to the outside of the expansion bag, and the connecting solid part is provided with two waisted surfaces.

[0019] Furthermore, the outer expansion ring includes an outer bag part 2 and a connecting solid part 2 located in the inner ring, the outer bag part 2 and the connecting solid part 2 are fixedly connected, a connecting hole is provided on the connecting solid part 2, an expansion bag 2 is provided at the bottom of the connecting solid part 2, and an expansion block 2 is fixedly connected to the outside of the expansion bag 2.

[0020] By adopting the above technical solution, the beneficial effects of the present invention are:

[0021] 1. An annular gap is provided between the outer buffer sleeve and the inner buffer sleeve. The annular gap is provided with isolation parts at intervals along the length direction of the cable. When the outer cable passes through the isolation part, it is fixed by the isolation part, thus forming an intermittent cavity. The cavity can be filled with repair liquid, air pressure or its elastic cotton, etc. The repair liquid is filled with dicyclopentadiene and catalyst respectively in two adjacent cavities in the length direction. The catalyst is specifically Grubbs catalyst. The advantage of this arrangement is that when the repair liquid is filled, the repair liquid can buffer and disperse the direct pressure. When local damage occurs, dicyclopentadiene and the catalyst contact and react, and seep outward along the damaged gap, and then fill the damaged gap. In this way, the damaged position of the cable insulation layer can be repaired. Optimally, the chamber where the repair liquid is located is also pressurized. In the case of damage, the repair liquid can quickly penetrate into the damaged gap by releasing the pressure.

[0022] 2. When the cable is used at a construction site, if it gets hung or a moving object contacts the cable, causing the cable to twist on both sides of the contact area, the above design can effectively solve the problem of damage to the cable core caused by such situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a compression-resistant self-repairing cable according to the present invention;

[0024] Figure 2 This is a schematic diagram of an adapter strip in a compression-resistant self-repairing cable according to the present invention;

[0025] Figure 3 This is a schematic diagram of a filling layer in a compression-resistant self-repairing cable according to the present invention;

[0026] Figure 4 This is a schematic diagram of a cable core in a compression-resistant self-repairing cable according to the present invention;

[0027] Figure 5 This is a schematic diagram of a compression-resistant self-repairing cable core and an adapter strip according to the present invention;

[0028] Figure 6 This is a schematic diagram of a hard plate and a steel mesh strip in a compression-resistant self-repairing cable according to the present invention;

[0029] Figure 7 This is a side view of a cable core in a compression-resistant self-repairing cable according to the present invention;

[0030] Figure 8 This is a schematic diagram of an inner expansion ring and an outer expansion ring in a compression-resistant self-repairing cable according to the present invention;

[0031] Figure 9 A compressive self-repairing cable of the present invention Figure 2 Enlarged view of point A in the middle;

[0032] Figure 10 This is a schematic diagram of a steel mesh strip in a compression-resistant self-repairing cable according to the present invention;

[0033] Figure 11 This is a schematic diagram of a curved silicone layer in a compression-resistant self-repairing cable according to the present invention;

[0034] Figure 12 This is a schematic diagram of a second triangular groove in a compression-resistant self-repairing cable according to the present invention;

[0035] Figure 13 Schematic diagrams of various surfaces of an inner expansion ring or an outer expansion ring in a compression-resistant self-repairing cable of the present invention;

[0036] Figure 14 This is a schematic diagram of an inner expansion ring in a compression-resistant self-repairing cable according to the present invention;

[0037] Figure 15 This is a schematic diagram of the inner and outer expansion rings of a compression-resistant and self-repairing cable according to the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] Reference Figures 1 to 15 A compression-resistant self-repairing cable is shown, comprising:

[0041] Cable core;

[0042] The cable core includes a ring core and a main core;

[0043] The ring core includes an outer buffer sleeve 11 and an inner buffer sleeve 12. An annular gap is provided between the outer buffer sleeve 11 and the inner buffer sleeve 12. The annular gap is provided with isolation parts at intervals along the length direction of the cable. When the outer cable passes through the isolation part, it is fixed by the isolation part, thus forming an intermittent cavity. The cavity can be filled with repair liquid, air pressure or its elastic cotton, etc. The repair liquid is filled with dicyclopentadiene and catalyst respectively in two adjacent cavities in the length direction. The catalyst is specifically Grubbs catalyst. The advantage of this arrangement is that when the repair liquid is filled, the repair liquid can play a role of buffering and separating. Dissipate direct pressure. When local damage occurs, dicyclopentadiene and the catalyst come into contact and react, and seep outward along the damaged gap, and then fill the damaged gap. In this way, the damaged position of the cable insulation layer can be repaired. Optimally, the chamber where the repair fluid is located is also pressurized. In the case of damage, the repair fluid can be quickly infiltrated into the damaged gap through pressure release. Cable fixing grooves 13 are provided on opposite sides of the outer buffer sleeve 11 and the inner buffer sleeve 12. The outer cable is provided in the cable fixing groove 13, and the surface of the outer cable is fixedly connected to the inner wall of the cable fixing groove 13. The outer cable includes an insulating layer 14, and a conductive wire 15 is provided in the insulating layer 14. The main core includes an insulating layer 2 16, and a conductive wire 2 17 is provided in the insulating layer 2 16.

[0044] like Figure 4 As shown, it should be understood that during the implementation of the above embodiment, a stable support layer 6 is provided on the ring core, and the stable support layer 6 includes a hard ring 61, and a triangular strip 62 is provided on the hard ring 61 to fit the inner wall of the triangular groove 24.

[0045] In order to ensure the compression resistance of the cable, the rigid ring 61 ensures internal stability while improving protection. The rigid ring 61 has a built-in glass fiber mesh and annular metals are arranged at equal distances. The annular metals are formed by bending strip metal and have no seams. In order to allow for rapid peeling during subsequent rewiring, there is also a gap between two adjacent annular metals, which are set in the same way. The triangular strip 62 can be a rubber strip, a metal strip or a material with a certain strength. It should be noted that the triangular strip is also connected into a long strip by a plurality of segmented triangular strips 62. The stability of the triangle can play a protective role from multiple dimensions of the cable, and in combination with the hard ring 61, it can play the purpose of armor protection. The metal has good heat dissipation. The metal strip is preferably made of alloy material with better stability and hardness. It should be further emphasized that the shape formed between two adjacent annular triangular strips 62 has a shape that is adapted to the inner protrusion of the filling layer 2, so that the inner end shape of the vertical section of the inner expansion ring 21 or the outer expansion ring 22 on the filling layer 2 is adapted to the longitudinal space cross-section shape formed between the two adjacent triangular strips 62. That is to say, the triangular strip 62 can be embedded in the longitudinal opening on the inner wall of the filling layer 2. The longitudinal space formed within the multiple triangular grooves 24 and between two adjacent triangular bars 62 can limit the multiple longitudinal inner expansion rings 21 and outer expansion rings 22. During vertical stretching, the deformation generated between the external inner expansion ring 21 and the outer expansion ring 22 can move within the longitudinal space. In this way, when torsion occurs during the stretching process, the longitudinal space can limit the multiple longitudinal inner expansion rings 21 and the outer expansion ring 22 to prevent twisting deformation. At the same time, since triangular bars 62 and triangular grooves 24 are also provided between them, the cable is further prevented from being deformed. When the cable is used at a construction site, the cable is hung or a moving object contacts the cable, causing the cable to twist on both sides of the contact area. The above design can effectively solve the problem of damage to the cable core in the cable caused by such situations.

[0046] Example 2

[0047] In this embodiment, based on the first embodiment, the filling layer 2 is sleeved on the cable core, and a plurality of triangular grooves 24 are provided on the inner wall of the filling layer 2 at equal distances along the axial direction. A plurality of triangular grooves 23 are provided on the outer wall of the filling layer 2 corresponding to the triangular grooves 24 at equal distances. A plurality of annular triangular grooves 3 26 are provided on the inner and outer surfaces of the filling layer 2 at intervals along the axial direction. A platform-shaped waist groove 25 communicating with the inside and outside is provided at the intersection of the outer triangular groove 3 26 and the triangular groove 2 23 and the inner triangular groove 3 26 and the triangular groove 1 24.

[0048] The arrangement of the triangular groove 1 24 and the triangular groove 2 23 allows the filling layer 2 to deform with sufficient margin when it is subjected to external pressure. The triangular groove 1 24 in the horizontal direction will be in a closed state, while the triangular groove 2 23 in the horizontal direction will be in an open state. The triangular groove 1 24 and the triangular groove 2 23 in the vertical direction will be in the opposite state. This allows the filling layer 2 to have sufficient margin for deformation when it is subjected to pressure, and when the triangular groove 1 24 and the triangular groove 2 23 are closed or opened to the limit, the entire filling layer 2 is in a stable state.

[0049] The setting of the triangular groove three 26 has the following effects: the triangular groove three 26 at the compressed part can buffer the pressure and cut off the transmission of deformation in the axial direction, so that the triangular groove three 26 between the uncompressed filling layer 2 and the filling layer 2 at the compressed part can cut off the transmission of deformation, thereby ensuring the integrity of the entire filling layer 2, and the triangular groove three 26 near the deformation part can provide space for axial deformation, thereby effectively reducing the excessive deformation of the filling layer 2 caused by pressure, which is beneficial to buffering the pressure while minimizing the deformation of the entire filling layer 2; in addition, when the cable is axially stretched, it can also provide elasticity, thereby protecting the axial ductility and recovery performance of the cable.

[0050] It is important to note that the trapezoidal waist groove 25 can help position the outer sheath to ensure that when the outer sheath is in use and is under pressure, there will be no misalignment between layers, that is, local damage causing delamination. When pressed down, the outer side of the trapezoidal waist groove 25 is designed to close inward. In this way, the extrusion force generated can cause the trapezoidal waist groove 25 to expand outward, and the extrusion direction is axial and circumferential. Since the trapezoidal waist groove 25 is distributed in both the circumferential and axial directions, and is on the same annular surface with the triangular groove 26, the trapezoidal waist groove 25 can be used in conjunction with the external adapter strip 3 to effectively resolve the impact of pressure on the local cable, thereby protecting the service life of the cable.

[0051] In this embodiment, in addition to the above arrangement of the filling layer 2, the filling layer 2 includes a plurality of inner expansion rings 21 and a plurality of outer expansion rings 22, and the plurality of inner expansion rings 21 and the outer expansion rings 22 are alternately arranged;

[0052] Different from the above design, the filling layer 2 uses multiple inner expansion rings 21 and several outer expansion rings 22 alternately connected into a whole, which has higher production efficiency. The above molding method has better continuity and can adopt internal 3D printing or injection molding.

[0053] When implementing this embodiment, the inner expansion ring 21 and the outer expansion ring 22 have the same shape and size;

[0054] Among them, Figure 14As shown, the inner expansion ring 21 includes an outer bag part 211 and a connecting solid part 212 located in the outer ring. The outer bag part 211 and the connecting solid part 212 are fixedly connected. A connecting hole is provided on the connecting solid part 212. An expansion bag 214 is provided at the bottom of the connecting solid part 212. An expansion block 215 is fixedly connected to the outside of the expansion bag 214. The connecting solid part 212 is provided with two waist surfaces 213.

[0055] The inner expansion ring 21 is described as follows:

[0056] The outer bladder portion 211 of the inner expansion ring 21 is located on the outer surface of the filling layer 2. When subjected to pressure, the outer bladder portion 211 can deform rapidly, and the space inside the outer bladder portion 211 is compressed. At the same time, the air pressure inside the outer bladder portion 211 enters the expansion bladder 214. During the expansion of the expansion bladder 214, the expansion blocks 215 on both sides are pushed out axially and come into contact with the adjacent outer expansion ring 22, forming an extrusion state.

[0057] Among them, Figure 15 As shown, the outer expansion ring 22 includes an outer bag part 221 located in the inner ring and a connecting solid part 222. The outer bag part 221 and the connecting solid part 222 are fixedly connected. A connecting hole is provided on the connecting solid part 222. An expansion bag 224 is provided at the bottom of the connecting solid part 222. An expansion block 225 is fixedly connected to the outside of the expansion bag 224.

[0058] The external expansion ring 22 is described as follows:

[0059] After being squeezed by the expansion blocks 1 215 on both sides, the outer bag part 2 221 located in the inner circle is compressed, and its internal volume is reduced, so that the air pressure in the outer bag part 221 located in the inner circle enters the expansion bag 2 224. Since the expansion bag 224 is located in the outer circle, the expansion block 225 on the expansion bag 224 can be in an outward expanded state.

[0060] The inner expansion ring 21 and the outer expansion ring 22 are further described as follows:

[0061] After the adapter strip 3 is pressurized, the adapter strip 3 causes the outer bag part 1 211 located in the outer ring, and the air pressure inside the outer bag part 1 211 enters the expansion bag 1 214, which will push the expansion blocks 1 215 on both sides axially outward. After the outer bag part 2 221 located in the inner ring is pressurized, the air pressure in the outer bag part 2 221 located in the inner ring enters the expansion bag 2 224. At this time, the expansion block 2 225 can gradually form a vertical state. At this time, the expansion block 2 225 and the solid part 2 222 can form a right angle or an obtuse angle. Since there is an expansion bag 224 between the two expansion blocks 225, while buffering the pressure, the radial force can be decomposed into an axial force, so that the radial pressure is reduced. At the same time, the expansion block 2 225 and the solid part 2 222 in a right angle or obtuse angle state can effectively resist the radial force in the opposite direction, so that the filling layer 2 has a multi-dimensional pressure resistance effect, effectively disperses the radial force into axial force, and at the same time, forms a state of resisting pressure.

[0062] like Figure 13 As shown, in addition to the above features, the inner expansion ring 21 and the outer expansion ring 22 can also be a icosahedron, wherein it should be noted that the I face, the B face, the E face and the opposite side face, and the two side areas connected to the opposite side face are formed of hard materials, which can be lightweight alloy materials or other materials, so that a hard annular ring can be formed in the circumferential direction, and multiple rings form an axial armored grid, which has an armored effect.

[0063] The volume of the area where the H surface, A surface and D surface are located is larger than the volume of the area where the J surface, C surface and G surface are located, so as to meet the need of forming a ring.

[0064] The area where the H surface, A surface, and D surface are located can be an airbag, and the area where the J surface, C surface, and G surface are located can also be an airbag;

[0065] The two air bags can be connected or independent.

[0066] Example 3

[0067] In this embodiment, based on the second embodiment, the outer layer is wrapped around the filling layer 2, and the inner wall of the outer layer is embedded in the outer surface of the filling layer 2. The outer layer includes a plurality of arc-shaped adaptor strips 3, which are wrapped and pressed into the filling layer 2 by a traction sleeve 4. There are gaps between the plurality of adaptor strips 3. A portion of the traction sleeve 4, specifically the steel mesh strips 41 and the adaptor teeth 42, is located between the gaps and is in meshing state with the filling layer 2.

[0068] The adaptor strip 3 includes a fitting arc-shaped silicone layer 31, and the inner wall of the fitting arc-shaped silicone layer 31 is provided with a plurality of granular protrusions 32 that fill the inner cavity outside the trapezoidal waist groove 25. One side of the granular protrusion 32 is fixedly connected to an embedded part 33 located in the middle cavity of the trapezoidal waist groove 25. A triangular fitting strip 34 that adapts to the triangular groove 26 is provided between the longitudinal granular protrusions 32.

[0069] The traction sleeve 4 includes a steel mesh strip 41, which is located between two adjacent fitted arc-shaped silicone layers 31. The inner side of the steel mesh strip 41 has adaptive teeth 42, which fit into a plurality of triangular grooves 26 arranged in an annular shape at intervals; it also includes a hard plate strip 43, which is adhered to the fitted arc-shaped silicone layer 31 and fixedly connected to the two adjacent steel mesh strips 41.

[0070] The use of the adapter strip 3, the triangular fitting strip 34 on the arc-shaped silicone layer 31 fits into the triangular groove three 26, which can effectively block the outer ring areas of the adjacent inner expansion ring 21 and outer expansion ring 22, so that the inner expansion ring 21 and the outer expansion ring 22 maintain a stable state, and the particle protrusion 32 and the embedded part 33 are inserted into the stage-shaped waist groove 25. In this way, the axial toughness of the filling layer 2 can be improved to achieve the purpose of tensile resistance. The advantage of such a setting is that when an external cable is required, the filling layer 2 of one of the cables can be exposed after the internal cable core is connected, and the adapter strip 3 of the other cable is retained in excess. When wiring, the filling layers 2 of the two cables are contacted, and then the multiple adapter strips 3 that are retained too long are respectively clamped to the triangular groove three 26 of the other filling layer 2 with a longer exposure. At this time, an overall state can be formed, and then the traction sleeves 4 on the two cables are glued. At this time, the state of the wiring point is no different from that of the normal cable.

[0071] The fixed limiting portion 35 is further included. The fixed limiting portion 35 is fixedly connected to one side of the embedded portion 33 , and the fixed limiting portion 35 is fixedly connected to the inner wall of the terraced waist groove 25 .

[0072] The fixed limiting parts 35 are arranged at intervals to improve the connection effect between the adapter strip 3 and the filling layer 2 after the adapter strip 3 is packaged and positioned inside the trapezoidal waist groove 25 through the fixed limiting parts 35 and is restricted by the internal shape.

[0073] It should be understood that it also includes a foreskin 5, which is sleeved on the surface of the outer covering.

[0074] Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compressive self-repairing cable, characterized in that: include: Cable core; A filling layer (2), the filling layer (2) is sleeved on the cable core, the inner wall of the filling layer (2) is provided with a plurality of triangular grooves (24) at equal distances along the axial direction, the outer wall of the filling layer (2) is provided with a plurality of triangular grooves (23) at equal distances corresponding to the triangular grooves (24), the inner and outer surfaces of the filling layer (2) are provided with a plurality of annular triangular grooves (26) at intervals along the axial direction, and a platform-shaped waist groove (25) communicating with each other is provided at the intersection of the outer triangular grooves (26) and the second triangular groove (23) and the inner triangular grooves (26) and the first triangular groove (24); An outer layer, the outer layer is wrapped on the filling layer (2), and the inner wall of the outer layer is embedded in the outer surface of the filling layer (2), the outer layer includes a plurality of arc-shaped adaptation strips (3), and the plurality of adaptation strips (3) are wrapped by a traction sleeve (4) and pressed into the filling layer (2); The foreskin (5) is sleeved on the surface of the outer covering layer.

2. A compressive self-repairing cable according to claim 1, characterized in that: The filling layer (2) comprises a plurality of inner expansion rings (21) and a plurality of outer expansion rings (22), and the plurality of inner expansion rings (21) and outer expansion rings (22) are alternately arranged.

3. A compressive self-repairing cable according to claim 2, characterized in that: The cable core includes a ring core and a main core; The ring core comprises an outer buffer sleeve (11) and an inner buffer sleeve (12), an annular gap is provided between the outer buffer sleeve (11) and the inner buffer sleeve (12), and a cable fixing groove (13) is provided on opposite sides of the outer buffer sleeve (11) and the inner buffer sleeve (12), and an external cable is provided in the cable fixing groove (13).

4. A compressive self-repairing cable according to claim 3, characterized in that: A stable support layer (6) is sleeved on the ring core. The stable support layer (6) includes a hard ring (61). A triangular strip (62) is provided on the hard ring (61) and is fitted on the inner wall of the triangular groove (24).

5. The compressive self-repairing cable according to claim 4, characterized in that: The adapting strip (3) comprises a fitting arc-shaped silicone layer (31), the inner wall of the fitting arc-shaped silicone layer (31) is provided with a plurality of particle protrusions (32) filling the inner cavity outside the table-shaped waist groove (25), one side of the particle protrusion (32) is fixedly connected to an embedded part (33) located in the middle cavity of the table-shaped waist groove (25), and a triangular fitting strip (34) adapted to the triangular groove (26) is provided between the longitudinal particle protrusions (32).

6. The compressive self-repairing cable according to claim 5, characterized in that: It also includes a fixed limiting portion (35), which is fixedly connected to one side of the embedded portion (33), and the fixed limiting portion (35) is fixedly connected to the inner wall of the table-shaped waist groove (25).

7. The compressive self-repairing cable according to claim 6, characterized in that: The traction sleeve (4) includes a steel mesh bar (41), the steel mesh bar (41) is located between two adjacent fitting arc-shaped silicone layers (31), and the inner side of the steel mesh bar (41) is provided with matching teeth (42), and the matching teeth (42) are fitted in a plurality of triangular grooves (26) arranged in an annular shape at intervals; It also includes a hard strip (43), which is adhered to the fitting arc-shaped silicone layer (31), and the hard strip (43) is fixedly connected to two adjacent steel mesh strips (41).

8. The compressive self-repairing cable according to claim 7, characterized in that: The inner expansion ring (21) includes an outer bag part (211) and a connecting solid part (212) located in the outer ring. The outer bag part (211) and the connecting solid part (212) are fixedly connected. A connecting solid part (212) is provided with a communicating hole. An expansion bag (214) is provided at the bottom of the connecting solid part (212). An expansion block (215) is fixedly connected to the outside of the expansion bag (214). The connecting solid part (212) is provided with two waisted surfaces (213).

9. The compressive self-repairing cable according to claim 8, characterized in that: The outer expansion ring (22) includes an outer bag part 2 (221) and a connecting solid part 2 (222) located in the inner ring. The outer bag part 2 (221) and the connecting solid part 2 (222) are fixedly connected. A communicating hole is provided on the connecting solid part 2 (222). An expansion bag 2 (224) is provided at the bottom of the connecting solid part 2 (222). An expansion block 2 (225) is fixedly connected to the outside of the expansion bag 2 (224).

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