Mining cable with buffer structure

Abstract

The invention belongs to the technical field of cables, and particularly relates to a mining cable with a buffer structure, which comprises a wrapping group and a conductive group, the conductive group is wrapped in the wrapping group, the wrapping group is used for peripheral protection and insulation of the conductive group, the conductive group is used for conduction, and the wrapping group comprises an insulating layer, a wire core accommodating hole and an arc-shaped wire hole. The wire core containing holes are distributed in the insulating layer in a circumferential array mode with the circle center of the insulating layer as the circle center. As the wire core arc sections of the conductive groups are arc-shaped, when the cable is subjected to pulling force, the wire core straight sections at the two ends of the wire core arc sections pull the cable, and the arcs of the wire core arc sections are gradually reduced, so that the overall linear length of the conductive groups is increased, the pulling borne by the cable is buffered, and the cable is prevented from being damaged due to pulling.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cables, and particularly relates to a mine cable provided with a buffer structure. BACKGROUND

[0002] A cable is an insulated conductor composed of one or more mutually insulated conductive cores placed in a sealed sheath, which can be externally provided with a protective cover layer, and is used for transmitting, distributing electric energy or transmitting electrical signals. The cable has the characteristics of internal power transmission and external insulation. There are various types of cables, and different cables are applied to different fields. Through retrieval, a mine cable with pressure resistance function is disclosed in Chinese Patent No. 2021106601007. When the cable is subjected to extrusion, the inner sheath and the adjusting buffer block will be extruded and deformed under the action of external force, thereby buffering and protecting the cable core bundle. When the inner sheath and the adjusting buffer block are extruded and deformed, the inner sheath and the adjusting buffer block are given sufficient deformation space through the buffer cavity, so as to improve the buffering effect of the inner sheath and the adjusting buffer block on the cable core bundle. Although the cable has certain pressure resistance performance, the cable in the mine still often faces the situation of external force pulling. Since the brightness of the underground environment is relatively dark, some operation equipment in the mine may be entangled with the cable during manual movement, which is easy to cause damage to the cable. SUMMARY

[0003] The purpose of the present application is to provide a mine cable provided with a buffer structure to solve the problems raised in the background art.

[0004] The present application provides the following technical scheme: a mine cable provided with a buffer structure, comprising: a coating group and a conductive group, the conductive group being wrapped inside the coating group, the coating group being used for the peripheral protection and insulation of the conductive group, and the conductive group being used for conduction; The coating group comprises: an insulation layer; a core accommodating hole, which is distributed and opened in the insulation layer in a circular central circular array; an arc-shaped wire hole, which is opened between the left and right two core accommodating holes and is in communication with the core accommodating holes at both ends; The conductive group comprises: a core straight section, which is fixedly installed inside the core accommodating hole; a core arc section, which is fixedly installed inside the arc-shaped wire hole, and the core straight section and the core arc section are integrally connected.

[0005] As a preferred scheme of the present application, the coating group further comprises: An inner cavity is arranged inside the insulation layer and is located at the inner side of the plurality of wire core accommodating holes, and an elastic support is fixedly arranged inside the inner cavity; A ring cavity is arranged inside the insulation layer and is located at the periphery of the inner cavity and at the inner side of the plurality of arc-shaped wire holes.

[0006] As a preferred scheme of the application, the coating group further comprises: A pressurization cavity is arranged at the left and right sides inside the inner cavity; A pressurization hole is arranged at the side of the left and right pressurization cavities away from each other and extends to the inside of the insulation layer; A fan-shaped release groove is arranged inside the insulation layer and is located at the periphery of the plurality of arc-shaped wire holes, the fan-shaped release groove has the same center as the inner cavity, and the cross section of the fan-shaped release groove is arranged in an arc shape; A pressurization channel is arranged between the pressurization hole and the fan-shaped release groove.

[0007] As a preferred scheme of the application, the number of the fan-shaped release grooves is a plurality, the plurality of fan-shaped release grooves are distributed equidistantly inside and outside, a conductive channel is arranged between every two adjacent fan-shaped release grooves inside and outside, and the inside of every two adjacent fan-shaped release grooves inside and outside is connected through the conductive channel.

[0008] As a preferred scheme of the application, a plurality of directional tearing guide holes are arranged at the region of the inner wall of the inner cavity close to the ring cavity at equal angles, and the inside of the directional tearing guide hole is not connected with the inside of the ring cavity.

[0009] As a preferred scheme of the application, the inside of the ring cavity is connected with the middle region of the inside of the arc-shaped wire hole.

[0010] As a preferred scheme of the application, the elastic support comprises a ring-shaped elastic sheet, the ring-shaped elastic sheet is fixedly installed inside the inner cavity, the outer surface of the ring-shaped elastic sheet is attached to the inner surface of the inner cavity, a plurality of accommodation openings are arranged through the outer wall of the inner cavity, and the positions of the accommodation openings correspond to the positions of the directional tearing guide holes one by one.

[0011] As a preferred scheme of the application, the number of the pressurization channels is a plurality, the plurality of pressurization channels are arranged at equal angles about the center of the pressurization hole, and the plurality of pressurization channels are connected with the inside of the pressurization hole and the fan-shaped release groove.

[0012] As a preferred scheme of the application, the inside of the inner cavity is filled with an appropriate amount of anaerobic filling liquid, and the inside of the inner cavity is arranged in a vacuum.

[0013] Compared with the prior art, the application has the following beneficial effects: 1. In the present invention, since the core arc segment of the conductive group is arranged in an arc shape, when the cable is subjected to a pulling force, the straight sections of the core at both ends of the core arc segment pull it, and the arc shape of the core arc segment gradually decreases, making the overall straight length of the conductive group longer, thereby buffering the pulling force on the cable and preventing the cable from being damaged due to pulling.

[0014] 2. When the present invention is subjected to a large pulling force, the arc segment of the wire core is gradually straightened. Based on the same principle as above, the arc-shaped wire hole squeezes the inner collapse cavity inward and the pressure inside the inner collapse cavity increases. When the pressure value reaches the set value, the pressure inside the inner collapse cavity causes the anaerobic filling liquid inside the inner collapse cavity to squeeze the directional tearing guide hole. Under the action of strong pressure, the directional tearing guide hole is torn, and the anaerobic filling liquid inside the inner collapse cavity will be injected into the annular cavity through the directional tearing guide hole, and then injected into the gap between the arc-shaped wire hole and the wire core arc segment through the annular cavity, and extend along the gap between the wire core arc segment and the arc-shaped wire hole until the anaerobic filling liquid enters the crack inside the insulation layer and fills the crack, thereby restoring the insulation property of the insulation layer to avoid electric shock accidents.

[0015] 3. When the insulating layer of the present invention is subjected to strong pulling, the multiple fan-shaped release grooves are gradually stretched straight, and the space inside the fan-shaped release grooves is squeezed. Since two adjacent fan-shaped release grooves are connected by a conducting channel, after the internal space of the fan-shaped release grooves is squeezed, the air inside the fan-shaped release grooves is squeezed into the inside of the pressurization hole through the pressurization channel, and finally squeezed into the inside of the pressurization cavity through the pressurization hole. The air pressure inside the pressurization cavity increases, causing the pressurization cavity to expand and occupy the internal space of the inner collapse cavity. The inner collapse cavity continues to be pressurized, thereby increasing the pressure of the anaerobic filling liquid inside the inner collapse cavity, allowing the anaerobic filling liquid to penetrate deeper into the cracks inside the insulating layer, thereby improving the waterproofness and further improving the insulation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the side cross-sectional structure of the coating group of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the local structure; Figure 4 For the present invention Figure 3 Schematic diagram of the local structure; Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at A in the middle; Figure 6 It is a structural schematic diagram of the annular spring piece of the present invention; Figure 7 Schematic diagram of the end cross-sectional structure of the coating group of the present invention.

[0017] In the figure: 100, covering group; 101, insulation layer; 102, core containing hole; 103, arc-shaped wire hole; 104, inner collapse cavity; 105, ring cavity; 106, pressure boosting cavity; 107, pressure boosting hole; 108, fan-shaped release slot; 109, pressure boosting channel; 1010, conduction channel; 1011, directional tearing guide hole; 200, conductive group; 201, core straight section; 202, core arc section; 301, ring-shaped elastic sheet; 302, accommodation port. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figures 1-7 , the technical solutions provided by the present application specifically include the following embodiments: A mine cable provided with a buffer structure, comprising a covering group 100 and a conductive group 200, the conductive group 200 is wrapped inside the covering group 100, the covering group 100 is used for the peripheral protection and insulation of the conductive group 200, and the conductive group 200 is used for conduction. The covering group 100 comprises an insulation layer 101, a core containing hole 102 and an arc-shaped wire hole 103. The core containing hole 102 is arranged in the form of a circular array with the center of the insulation layer 101 and is opened inside the insulation layer 101. The arc-shaped wire hole 103 is opened between the left and right core containing holes 102, and the two ends of the arc-shaped wire hole 103 are in communication with the core containing holes 102. The conductive group 200 comprises a core straight section 201 and a core arc section 202. The core straight section 201 is fixedly installed inside the core containing hole 102, and the core arc section 202 is fixedly installed inside the arc-shaped wire hole 103. The core straight section 201 and the core arc section 202 are integrally connected. Since the core arc section 202 of the conductive group 200 is arranged in an arc shape, when the cable is subjected to a pulling force, the core straight section 201 at both ends of the core arc section 202 is partially pulled, the arc shape of the core arc section 202 gradually decreases, the overall straight line length of the conductive group 200 is lengthened, thereby buffering the pulling force borne by the cable, and preventing the cable from being damaged due to the pulling.

[0020] Further, with reference to Figure 3 , Figure 5 , the following is shown: The cladding group 100 further comprises an inner collapse cavity 104 and a ring cavity 105, the inner collapse cavity 104 is arranged inside the insulation layer 101 and is located inside the plurality of wire core accommodating holes 102, the inner collapse cavity 104 is fixedly provided with an elastic support inside, the inner collapse cavity 104 is filled with an appropriate amount of anaerobic filling liquid, the inner collapse cavity 104 is provided with a vacuum inside, and the ring cavity 105 is arranged inside the insulation layer 101, the ring cavity 105 is located outside the inner collapse cavity 104, and the ring cavity 105 is located inside the plurality of arc-shaped wire holes 103.

[0021] Specifically, when the wire core arc segment 202 is pulled, the outer wall thereof will be pressed to the arc-shaped wire hole 103, thus, part of the arc-shaped wire hole 103 will be deformed towards the inner collapse cavity 104, thereby pressing the inner space of the inner collapse cavity 104, that is, the inner collapse cavity 104 provides a deformation space for the arc-shaped wire hole 103 to collapse inward, so that the wire core arc segment 202 will not be interfered by the arc-shaped wire hole 103 during the deformation process of the arc-shaped part thereof to a straightened state, at the same time, the deformation of the arc-shaped wire hole 103 towards the inner collapse cavity 104 can also avoid the arc-shaped wire hole 103 from being torn due to a large pressing force. Moreover, since the elastic range of the insulation layer 101 is limited, when the cable is subjected to a strong pulling force, the deformation amount of the part of the insulation layer 101 close to the arc-shaped wire hole 103 is the largest, thus, this part is easy to be torn to cause cracks inside, at this time, the liquid outside (such as accumulated water inside a mine) is easy to penetrate through the cracks inside the insulation layer 101 to enter the inside of the arc-shaped wire hole 103 to contact the wire core arc segment 202, thereby causing electrical conduction, that is, the insulation effect of the insulation layer 101 is lost, and there is a risk of electric shock during use of the cable. Therefore, after the cable is subjected to a large pulling force, the wire core arc segment 202 is gradually straightened, and according to the above principle, the arc-shaped wire hole 103 presses the inner collapse cavity 104 to collapse inward, the pressure inside the inner collapse cavity 104 increases, when the pressure value reaches a set value, the pressure inside the inner collapse cavity 104 causes the anaerobic filling liquid inside to press the directional tearing guide hole 1011, under the action of the strong pressure, the directional tearing guide hole 1011 is torn, the anaerobic filling liquid inside the inner collapse cavity 104 is injected into the ring cavity 105 through the directional tearing guide hole 1011, then is injected into the gap between the arc-shaped wire hole 103 and the wire core arc segment 202 through the ring cavity 105, and extends along the gap between the wire core arc segment 202 and the arc-shaped wire hole 103 until the anaerobic filling liquid enters the cracks inside the insulation layer 101 to fill the cracks, thereby restoring the insulation of the insulation layer 101 to avoid electric shock accidents.

[0022] Further, with reference to Figure 4 , Figure 5 , The package 100 further comprises a pressurizing cavity 106, a pressurizing hole 107, a fan-shaped release slot 108 and a pressurizing channel 109. The pressurizing cavity 106 is arranged inside the inner cavity 104 on the left and right sides. The pressurizing hole 107 is arranged on the side of the two pressurizing cavities 106 away from each other and extends into the insulating layer 101. The fan-shaped release slot 108 is arranged inside the insulating layer 101 and located outside the plurality of arc-shaped holes 103. The fan-shaped release slot 108 has the same center as the inner cavity 104. The cross section of the fan-shaped release slot 108 is arc-shaped. The pressurizing channel 109 is arranged between the pressurizing hole 107 and the fan-shaped release slot 108. The plurality of fan-shaped release slots 108 are equidistantly distributed inside and outside. A through channel 1010 is arranged between the two adjacent fan-shaped release slots 108 inside and outside. The two adjacent fan-shaped release slots 108 inside and outside are connected through the through channel 1010. A plurality of directional tearing guide holes 1011 are equidistantly arranged on the inner wall of the inner cavity 104 close to the annular cavity 105. The directional tearing guide hole 1011 is not connected to the inside of the annular cavity 105. The inside of the annular cavity 105 is connected to the middle region of the inside of the arc-shaped hole 103. The plurality of pressurizing channels 109 are equidistantly arranged about the center of the pressurizing hole 107. The plurality of pressurizing channels 109 are connected to the inside of the pressurizing hole 107 and the fan-shaped release slot 108.

[0023] Specifically, during the process of the insulating layer 101 being strongly pulled, the plurality of fan-shaped release slots 108 are gradually straightened. The space inside the fan-shaped release slot 108 is squeezed. Since the two adjacent fan-shaped release slots 108 are connected through the through channel 1010, after the space inside the fan-shaped release slot 108 is squeezed, the air inside the fan-shaped release slot 108 is squeezed into the inside of the pressurizing hole 107 through the pressurizing channel 109, and finally into the inside of the pressurizing cavity 106 through the pressurizing hole 107. The air pressure in the pressurizing cavity 106 increases, causing the pressurizing cavity 106 to expand and occupy the internal space of the inner cavity 104, continuously pressurizing the inside of the inner cavity 104, so that the pressure of the anaerobic filling liquid in the inner cavity 104 increases, allowing the anaerobic filling liquid to penetrate deeper into the cracks in the insulating layer 101, thereby improving the waterproofness and further improving the insulation of the cable.

[0024] Further, with reference to Figure 6 , it is shown that: The elastic support member comprises a ring-shaped elastic sheet 301 fixedly installed inside the inner cavity 104. The outer surface of the ring-shaped elastic sheet 301 is attached to the inner surface of the inner cavity 104. A plurality of clearance openings 302 are arranged through the outer wall of the inner cavity 104. The positions of the clearance openings 302 correspond to the positions of the directional tearing guide holes 1011 one by one.

[0025] Specifically, when the arc-shaped hole 103 extrudes the inner collapse cavity 104, the inner space of the inner collapse cavity 104 is extruded, so that the annular elastic sheet 301 is elastically deformed, thereby providing support to the inner wall of the inner collapse cavity 104, and the elastic force of the annular elastic sheet 301 provides potential energy for the reset of the inner collapse cavity 104, so that after the pulling effect on the cable disappears, the extruded inner collapse cavity 104 is restored to the peripheral support by the elastic force of the annular elastic sheet 301, and in the process of restoring the inner collapse cavity 104, the arc-shaped hole 103 is pushed outward to the periphery, so that the arc-shaped hole 103 restores to the initial arc shape, and the core arc segment 202 is driven to restore to the initial arc shape, and the internal structure of the insulation layer 101 restores to the initial state under the action of the elastic force of the insulation layer 101, and the plurality of fan-shaped release grooves 108 restore to the initial arc shape.

[0026] When the cable is subjected to a pulling force, the core straight segment 201 at both ends of the core arc segment 202 is pulled, and the arc shape of the core arc segment 202 gradually decreases, so that the overall linear length of the conductive group 200 is lengthened, thereby buffering the pulling force borne by the cable and avoiding damage to the cable due to the pulling. The outer wall of the core arc segment 202 is extruded to the arc-shaped hole 103, so that part of the arc-shaped hole 103 is deformed towards the inner collapse cavity 104, thereby extruding the internal space of the inner collapse cavity 104, and the core straight segment 201 is also deformed by tension. Since the fan-shaped release grooves 108 are arc-shaped, the arc of the fan-shaped release grooves 108 gradually decreases after the insulation layer 101 is pulled, so that part of the stress in the insulation layer 101 is released, thereby avoiding tearing of the insulation layer 101. In the process of extruding the inner collapse cavity 104 by the arc-shaped hole 103, the space inside the inner collapse cavity 104 is extruded, so that the annular elastic sheet 301 is elastically deformed, thereby providing support to the inner wall of the inner collapse cavity 104, and the elastic force of the annular elastic sheet 301 provides potential energy for the reset of the inner collapse cavity 104, so that after the pulling effect on the cable disappears, the extruded inner collapse cavity 104 is restored to the peripheral support by the elastic force of the annular elastic sheet 301, and in the process of restoring the inner collapse cavity 104, the arc-shaped hole 103 is pushed outward to the periphery, so that the arc-shaped hole 103 restores to the initial arc shape, and the core arc segment 202 is driven to restore to the initial arc shape, and the internal structure of the insulation layer 101 restores to the initial state under the action of the elastic force of the insulation layer 101, and the plurality of fan-shaped release grooves 108 restore to the initial arc shape; Due to the limited elastic range of the insulation layer 101, when the cable is subjected to a strong pulling force, the stress intensity exceeds the range that the insulation layer 101 can withstand, and the deformation of the part of the insulation layer 101 close to the arc-shaped hole 103 is the largest, so this part is easy to be torn to cause internal cracks. At this time, the external liquid (such as the accumulated water in the mine) is easy to penetrate through the cracks in the insulation layer 101 into the arc-shaped hole 103 to contact the core arc segment 202, thereby causing electrical conduction, that is, the insulation effect of the insulation layer 101 is lost, and there is a risk of electric shock during the use of the cable. Therefore, after the cable is subjected to a large pulling force, the core arc segment 202 is gradually straightened, and according to the above principle, the arc-shaped hole 103 extrudes the inner collapse cavity 104 to collapse inward, and the pressure in the inner collapse cavity 104 increases. When the pressure value reaches the set value, the pressure in the inner collapse cavity 104 causes the anaerobic filling liquid in it to extrude the directional tearing guide hole 1011. Under the action of high pressure, the directional tearing guide hole 1011 is torn, and the anaerobic filling liquid in the inner collapse cavity 104 can be injected into the annular cavity 105 through the directional tearing guide hole 1011, and then injected into the gap between the arc-shaped hole 103 and the core arc segment 202 through the annular cavity 105, and then extended along the gap between the core arc segment 202 and the arc-shaped hole 103, until the anaerobic filling liquid enters the cracks in the insulation layer 101 to fill the cracks, thereby restoring the insulation of the insulation layer 101 to prevent electric shock accidents. At the same time, during the process of the insulation layer 101 being subjected to a strong pulling force, the plurality of fan-shaped release grooves 108 are gradually straightened, the space in the fan-shaped release groove 108 is extruded, and because the two adjacent fan-shaped release grooves 108 are connected through the through channel 1010, when the space in the fan-shaped release groove 108 is extruded, the air in the fan-shaped release groove 108 is extruded into the pressurization hole 107 through the pressurization channel 109, and finally extruded into the pressurization cavity 106 through the pressurization hole 107. The air pressure in the pressurization cavity 106 increases, causing the pressurization cavity 106 to expand and occupy the internal space of the inner collapse cavity 104, thereby increasing the pressure in the inner collapse cavity 104, so that the anaerobic filling liquid in the inner collapse cavity 104 can penetrate deeper into the cracks in the insulation layer 101, thereby improving the waterproofness and further improving the insulation of the cable.

[0027] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application.

Claims

1. A mining cable with a buffer structure, characterized in that: include: A coating group (100) and a conductive group (200), wherein the conductive group (200) is wrapped inside the coating group (100), the coating group (100) is used for peripheral protection and insulation of the conductive group (200), and the conductive group (200) is used for conducting electricity; The coating group (100) includes: Insulation layer (101); Wire core accommodating holes (102), the wire core accommodating holes (102) being arranged in an array around the center of the insulating layer (101) and arranged inside the insulating layer (101); An arc-shaped wire hole (103), the arc-shaped wire hole (103) being provided between the left and right sections of the wire core accommodating holes (102), and both ends of the arc-shaped wire hole (103) being connected to the wire core accommodating holes (102); The conductive group (200) includes: A straight wire core section (201), wherein the straight wire core section (201) is fixedly mounted inside the wire core receiving hole (102); The wire core arc segment (202) is fixedly mounted inside the arc-shaped wire hole (103), and the wire core straight segment (201) and the wire core arc segment (202) are integrally connected.

2. A mining cable with a buffer structure according to claim 1, characterized in that: The coating group (100) further includes: An inner collapse cavity (104), the inner collapse cavity (104) being opened inside the insulating layer (101) and located inside the plurality of wire core accommodating holes (102), an elastic support member being fixedly provided inside the inner collapse cavity (104); The annular cavity (105) is opened inside the insulating layer (101), the annular cavity (105) is located outside the inner cavity (104), and the annular cavity (105) is located inside the plurality of arc-shaped wire holes (103).

3. A mining cable with a buffer structure according to claim 2, characterized in that: The coating group (100) further includes: A pressurizing chamber (106), the pressurizing chamber (106) being opened on the left and right sides of the inner collapse chamber (104); A pressurizing hole (107), the pressurizing hole (107) being opened on a side of the left and right pressurizing chambers (106) that is away from each other and extending into the interior of the insulating layer (101); A fan-shaped release groove (108), the fan-shaped release groove (108) is opened inside the insulating layer (101) and is located outside the plurality of arc-shaped wire holes (103), the fan-shaped release groove (108) is cocentric with the inner collapse cavity (104), and the cross-section of the fan-shaped release groove (108) is an arc-shaped arrangement; A pressurization channel (109) is provided between the pressurization hole (107) and the fan-shaped release groove (108).

4. A mining cable with a buffer structure according to claim 3, characterized in that: There are multiple fan-shaped release grooves (108), and the multiple fan-shaped release grooves (108) are evenly distributed inside and outside. A conducting channel (1010) is provided between two adjacent fan-shaped release grooves (108) inside and outside, and the insides of the two adjacent fan-shaped release grooves (108) inside and outside are connected through the conducting channel (1010).

5. The mining cable with a buffer structure according to claim 4, characterized in that: A plurality of directional tearing guide holes (1011) are provided at equal angles in an area of ​​the inner wall of the inner collapse cavity (104) close to the annular cavity (105), and the interior of the directional tearing guide holes (1011) is not connected to the interior of the annular cavity (105).

6. The mining cable with a buffer structure according to claim 5, characterized in that: The interior of the annular cavity (105) is communicated with the inner middle area of ​​the arc-shaped linear hole (103).

7. A mining cable with a buffer structure according to claim 6, characterized in that: The elastic support member comprises an annular spring piece (301), the annular spring piece (301) being fixedly mounted inside the inner collapse cavity (104), the outer surface of the annular spring piece (301) being in contact with the inner surface of the inner collapse cavity (104), and a plurality of clearance openings (302) being provided through the outer wall of the inner collapse cavity (104), the positions of the clearance openings (302) corresponding one-to-one to the positions of the directional tearing guide holes (1011).

8. The mining cable with a buffer structure according to claim 7, characterized in that: There are multiple pressurizing channels (109), and the multiple pressurizing channels (109) are distributed at equal angles with respect to the center of the pressurizing hole (107). The multiple pressurizing channels (109) are all connected to the inside of the pressurizing hole (107) and the fan-shaped release groove (108).

9. The mining cable with a buffer structure according to claim 8, characterized in that: The interior of the inner collapse cavity (104) is filled with an appropriate amount of anaerobic filling liquid, and the interior of the inner collapse cavity (104) is vacuum-set.

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