Compression-resistant self-repairing cable

Abstract

The invention relates to the field of cables, in particular to a compression-resistant self-repairing cable which comprises a cable core. The cable core is sleeved with the filling layer, a plurality of first triangular grooves are formed in the inner wall of the filling layer at equal intervals in the axial direction, a plurality of second triangular grooves are formed in the outer side wall, corresponding to the first triangular grooves, of the filling layer at equal intervals, and a plurality of third annular triangular grooves are formed in the inner surface and the outer surface of the filling layer at intervals in the axial direction; and table-shaped waist grooves which are communicated with each other inside and outside are formed in the junction of the triangular groove III and the triangular groove II on the outer side and the junction of the triangular groove III and the triangular groove I on the inner side. When the cable is used in a construction site, when the cable is hung or a moving object is in contact with the cable, and the two sides of the contact area of the cable are twisted, the problem that the cable core in the cable is damaged due to the situation can be effectively solved through the design.

Description

Technical Field

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

[0002] Cables are usually rope-like cables made of several or several groups of wires (at least two in each group), each group of wires is insulated from each other and often twisted around a center, with a highly insulating covering on the outside. It can also be said that it is 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 usually laid randomly. Most of the cables are placed on the ground and are often subjected to pressure. During use, such cables are severely worn and prone to breakage. 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. This results in poor aesthetics at the repaired cable connections, and there is also a risk of leakage at the connections, resulting in poor safety, especially in construction environments. Summary of the invention

[0004] The invention aims 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, wherein the filling layer is sleeved on the cable core, a plurality of triangular grooves 1 are arranged on the inner wall of the filling layer at equal distances in the axial direction, a plurality of triangular grooves 2 are arranged on the outer wall of the filling layer corresponding to the triangular groove 1 at equal distances, a plurality of annular triangular grooves 3 are arranged on the inner and outer surfaces of the filling layer at intervals in the axial direction, and a terrace-shaped waist groove communicating inside and outside is arranged 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 layer, the outer layer is wrapped on the filling layer, and the inner wall of the outer layer is embedded in the outer surface of the filling layer, the outer layer includes a plurality of arc-shaped adapter strips, and the plurality of adapter strips are wrapped by a traction sleeve and pressed in the filling layer;

[0009] The foreskin is arranged 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] Further, the cable core includes a ring core and a main core;

[0012] The ring core comprises an outer buffer sleeve and an inner buffer sleeve, an annular gap is arranged between the outer buffer sleeve and the inner buffer sleeve, and cable fixing grooves are arranged on opposite sides of the outer buffer sleeve and the inner buffer sleeve, and an external cable is arranged 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 arranged 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 comprises 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 matching teeth, and the matching teeth are fitted in a plurality of triangular grooves arranged in an annular shape at intervals;

[0017] It also includes a hard board 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 outer side 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 a Grubbs catalyst. The advantage of such a setting is that when the repair liquid is filled, the repair liquid can buffer and disperse the direct pressure. When the local damage occurs, the 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 be quickly infiltrated into the damaged gap through pressure release.

[0022] 2. When the cable is used at a construction site, if the cable 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 A schematic diagram of a compression-resistant self-repairing cable according to the present invention;

[0024] Figure 2 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 of the present invention;

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

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

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

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

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

[0031] Fig. 9 A compression-resistant self-repairing cable according to the present invention Figure 2 Enlarged view of point A in the middle;

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

[0033] Fig.11 A schematic diagram of a curved silicone layer in a compression-resistant self-repairing cable of the present invention;

[0034] Fig.12 It is a schematic diagram of a second triangular groove in a compression-resistant self-repairing cable of the present invention;

[0035] Fig.13 It is a schematic diagram 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] Fig.14 This is a schematic diagram of an inner expansion ring in a compression-resistant self-repairing cable of the present invention;

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

[0038] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0039] Embodiment 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 annular core comprises an outer buffer sleeve 11 and an inner buffer sleeve 12, an annular gap is arranged between the outer buffer sleeve 11 and the inner buffer sleeve 12, and 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, and the cavity can be filled with repair liquid, air pressure or its elastic cotton, etc. The repair liquid is filled with dicyclopentadiene and a catalyst in two adjacent cavities in the length direction, and the catalyst is specifically a Grubbs catalyst. The advantage of such a setting is that when the repair liquid is filled, the repair liquid can play a role of buffering and separation. 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 liquid is located is also pressurized. In the case of damage, the repair liquid can be quickly infiltrated into the damaged gap through pressure release. The outer buffer sleeve 11 and the inner buffer sleeve 12 are provided with a cable fixing groove 13 on the opposite side. The cable fixing groove 13 is provided with an outer cable, 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 sleeved 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 the internal stability while improving the 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 metals and have no seams. In order to be able to be quickly peeled off during the subsequent rewiring process, there is also a gap between two adjacent annular metals, which are arranged 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 formed by connecting a plurality of segmented triangular strips 62 into a long strip. By utilizing the stability of the triangle, it can protect the cable from multiple dimensions, and in combination with the hard ring 61, it can achieve the purpose of armor protection. The metal has good heat dissipation. The metal strip is preferably made of alloy material, which has better stability and hardness. It should be further emphasized that a shape that is adapted to the inner protrusion of the filling layer 2 is formed between two adjacent annular triangular strips 62, so that the inner end shape of the vertical cross-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 of the inner wall of the filling layer 2. The longitudinal space formed in the multiple triangular grooves 24 and between two adjacent triangular bars 62 can limit the multiple inner expansion rings 21 and the outer expansion rings 22 in the longitudinal direction. During vertical stretching, the deformation generated between the outer inner expansion rings 21 and the outer expansion rings 22 can move in the longitudinal space. In this way, when torsion occurs during the stretching process, the longitudinal space can limit the multiple inner expansion rings 21 and the outer expansion rings 22 in the longitudinal direction to prevent twisting deformation. At the same time, since the triangular bars 62 and the triangular grooves 24 are also arranged in between, the cable is further prevented from being deformed. When the cable is used on 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] Embodiment 2

[0047] In this embodiment, on the basis of the first embodiment, 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 in 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 3 26 at intervals in the axial direction, and a terrace-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 23, when the filling layer 2 is subjected to external pressure, the triangular groove 1 24 in the horizontal direction can provide a margin for the overall deformation, so that the triangular groove 1 24 in the horizontal direction will be in a closed state, and the triangular groove 2 23 in the horizontal direction will be in an open state, and the triangular groove 1 24 and the triangular groove 2 23 in the vertical direction will be opposite, so that the filling layer 2 has enough margin for deformation when subjected to pressure, and when the triangular groove 1 24 and the triangular groove 2 23 are closed or expanded to the limit, the overall filling layer 2 forms a stable state;

[0049] The setting of the triangular groove three 26 has the following effects: the triangular groove three 26 at the compressed position 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 position can cut off the transmission of deformation, thereby ensuring the integrity of the entire filling layer 2, and the triangular groove three 26 close to the deformation position can provide space for axial deformation, thereby effectively alleviating 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 trapezoidal waist groove 25 is designed to close from the outside to the inside. In this way, the extrusion force generated can make the trapezoidal waist groove 25 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 arranged alternately;

[0052] Different from the above design, the filling layer 2 uses multiple inner expansion rings 21 and several outer expansion rings 22 to be alternately connected into a whole, so that the production efficiency is higher. 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, Fig.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, and 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 bag part 211 of the inner expansion ring 21 is located on the outer surface of the filling layer 2. When subjected to pressure, the outer bag part 211 can be deformed quickly, and the space inside the outer bag part 211 is compressed. At the same time, the air pressure inside the outer bag part 211 enters the expansion bag 214. During the expansion of the expansion bag 214, the expansion blocks 215 on both sides are pushed out to both sides of the axial direction, and collide with the adjacent outer expansion ring 22 to form an extrusion state.

[0057] Among them, Fig.15 As shown, the outer expansion ring 22 includes an outer bag part 221 and a connecting solid part 222 located in the inner ring. 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 outer side of the expansion bag 224.

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

[0059] After being squeezed by the expansion blocks 215 on both sides, the outer bag part 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 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 expansion 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 compressed, the adapter strip 3 allows the outer bag part 211 located in the outer circle, and the air pressure inside the outer bag part 211 enters into the expansion bag 214, which will push the expansion blocks 215 on both sides axially outward. After the outer bag part 221 located in the inner circle is compressed, the air pressure in the outer bag part 221 located in the inner circle enters into the expansion bag 224. At this time, the expansion block 225 can gradually form a vertical state. At this time, the expansion block 225 and the solid part 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 225 and the solid part 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 an axial force, and at the same time, forms a state of resisting pressure.

[0062] like Fig.13 As shown, in addition to the above-mentioned 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 may be connected or independent.

[0066] Embodiment 3

[0067] In this embodiment, on the basis of the second embodiment, 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 adapting strips 3, the plurality of adapting strips 3 are wrapped and pressed in the filling layer 2 by the traction sleeve 4, there are gaps between the plurality of adapting strips 3, a part of the traction sleeve 4, specifically, the steel mesh strip 41 and the adapting teeth 42 are located between the gaps and are in meshing state with the filling layer 2;

[0068] The adaption 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 particle protrusions 32 filling the inner cavity outside the trapezoidal waist groove 25, and one side of the particle protrusion 32 is fixedly connected to an embedded part 33 located in the middle cavity of the trapezoidal waist groove 25, and a triangular fitting strip 34 adapted to the triangular groove three 26 is provided between the longitudinal particle 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 is provided with adapting teeth 42, which fit into a plurality of triangular grooves 26 arranged in an annular shape at intervals; and 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 in 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, and 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 brought into contact with each other, and then the multiple adapter strips 3 retained too long are respectively clamped to the triangular groove three 26 of the other filling layer 2 with a longer exposed length. 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 not significantly different from that of the normal cable.

[0071] The fixed limiting portion 35 is also 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 terrace-shaped 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 is 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 layer.

[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 conform to 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), wherein 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 in 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 in the axial direction, and a terrace-shaped waist groove (25) communicating inside and outside is provided at the intersection of the triangular grooves (26) and the triangular grooves (23) on the outside and the triangular grooves (26) and the triangular grooves (24) on the inside; 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 comprises 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 arranged alternately.

3. A compressive self-repairing cable according to claim 2, characterized in that: The cable core comprises a ring core and a main core; The annular 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 compression-resistant self-repairing cable according to claim 3, characterized in that: A stable support layer (6) is sleeved on the ring core, and the stable support layer (6) comprises a hard ring (61), and a triangular strip (62) is arranged on the hard ring (61) and is fitted on the inner wall of the triangular groove (24).

5. A compression-resistant 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 with 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 three (26) is provided between the longitudinal particle protrusions (32).

6. A compression-resistant self-repairing cable according to claim 5, characterized in that: It also includes a fixed limiting portion (35), wherein 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 terrace-shaped waist groove (25).

7. A compression-resistant self-repairing cable according to claim 6, characterized in that: The traction sleeve (4) comprises a steel mesh bar (41), the steel mesh bar (41) is located between two adjacent fitting arc-shaped silicone layers (31), 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 plate strip (43), the hard plate strip (43) is adhered to the fitting arc-shaped silicone layer (31), and the hard plate strip (43) is fixedly connected to two adjacent steel mesh strips (41).

8. A compression-resistant self-repairing cable according to claim 7, characterized in that: The inner expansion ring (21) comprises 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), and the connecting solid part (212) is provided with two waisted surfaces (213).

9. A compression-resistant self-repairing cable according to claim 8, characterized in that: The outer expansion ring (22) comprises 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 connecting 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), and an expansion block 2 (225) is fixedly connected to the outside of the expansion bag 2 (224).

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