An impact-resistant and short-circuit-proof explosion-proof cable and its manufacturing process

Abstract

This invention relates to the field of cable manufacturing technology, and discloses an impact-resistant and short-circuit-proof explosion-proof cable and its manufacturing process. The cable includes multiple cable cores encased in a cable sheath, and connectors for connecting adjacent sections of the cable sheath. An elastic component is provided between the first and second cable terminals. A circuit-breaking component for disconnecting adjacent sections of the cable sheath is also provided on the connecting tube. A spring-loaded component is provided between the semi-circular ring and the triangular chuck. The spring-loaded component includes multiple circuit-breaking springs for actively disconnecting adjacent sections of the cable sheath when a cable core short-circuits. Compared to existing technologies, this application solves a series of problems such as cables being easily damaged by external impacts or open circuits during use.

Description

Technical Field

[0001] This invention relates to the field of cable manufacturing technology, specifically to an impact-resistant and short-circuit-proof explosion-proof cable and its manufacturing process. Background Technology

[0002] A cable is a conductor made of one or more insulated conductors and an outer insulating protective layer. It transmits electricity or information from one point to another. Typically, it is a rope-like cable composed of several or groups of conductors twisted together, with each group of conductors insulated from each other and often twisted around a central core. The entire cable is covered with a highly insulating outer layer. Cables are characterized by being internally conductive and externally insulated. Types of cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and so on. They are all composed of single or multiple strands of conductors and an insulating layer, used to connect circuits, electrical appliances, etc.

[0003] In the prior art, Chinese patent document CN111739681B discloses a tensile fire-resistant cable, a filling rope cutting mold, and a tensile fire-resistant cable production process. By adding a corresponding material layer inside the cable insulation layer, the overall fire resistance and tensile strength of the cable can be improved. However, cables manufactured using this technology are inevitably susceptible to external impacts or pulling during laying and other stages in actual applications. Simply relying on the internal filling material of the cable to solve the tensile impact effect is not very effective, and the cable is still easily broken by external forces. In addition, if the cable is used, a short circuit can easily occur due to the rupture of the sheath. If the circuit is not disconnected in time, it will cause irreversible damage to the entire long-distance cable. Therefore, this application discloses an impact-resistant and short-circuit-proof explosion-proof cable and its production process to meet the safety requirements of the cable. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an impact-resistant and short-circuit-proof explosion-proof cable and its manufacturing process, which has advantages such as high safety and solves a series of problems in existing technologies, such as cables being easily damaged by external impacts or open circuits.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an explosion-proof cable resistant to impact and short circuit, comprising a plurality of cable cores sleeved within a cable sheath, and a connector for connecting adjacent sections of the cable sheath. The connector includes a connecting tube with one end sleeved on one end of the cable sheath, and a first cable connector connected to the other end of the connecting tube. The other end of the first cable connector is also provided with a second cable connector arranged coaxially therewith. An elastic component is also provided between the first cable connector and the second cable connector. The elastic component includes a buffer spring indirectly connected to the first cable connector and the second cable connector by spot welding. One end of the plurality of cable cores in a corresponding section passes through the first cable connector and the second cable connector in sequence, and the length of the plurality of cable cores in a corresponding section between the first cable connector and the second cable connector is greater than the distance between the first cable connector and the second cable connector.

[0008] The connecting pipe is also provided with a circuit breaking assembly for disconnecting the cable sheath layer of adjacent sections. The circuit breaking assembly includes a triangular chuck indirectly connected to the first cable connector and two semicircular rings sleeved on the connecting pipe. A spring-opening assembly is also provided between the semicircular rings and the triangular chuck. The spring-opening assembly includes multiple circuit breaking springs for actively disconnecting the cable sheath layer of adjacent sections when the cable core is short-circuited.

[0009] Preferably, one end of one of the multiple cable cores in one section of the cable sheath passes through the connecting tube and is connected to the input end of the first cable connector, and the two ends of the other section of multiple cable cores are respectively connected to the output end of the first cable connector and the input end of the second cable connector, and the length of the other section of multiple cable cores is greater than the distance between the first cable connector and the second cable connector;

[0010] One end of the cable sheath and one end of the connecting pipe are fitted with the same cold shrink tubing.

[0011] Preferably, both ends of the cold shrink tubing are fitted with rubber rings, and an annular groove corresponding to the position of one of the rubber rings is also formed on the outer wall of one end of the connecting tube.

[0012] Preferably, threaded sleeves are fixedly fitted onto the outer walls of both the first cable connector and the second cable connector, and fixed discs are threaded onto both threaded sleeves. The buffer spring is fitted onto one end of the first cable connector and the second cable connector, and the two ends of the buffer spring are spot-welded to the fixed discs on the corresponding sides.

[0013] Preferably, a plurality of evenly distributed fixing pieces are fixedly sleeved on the outer wall of the connecting pipe, and two guide rods with corresponding positions are fixedly connected to the outer wall of the connecting pipe. Two protrusions of the same height are fixedly installed on the outer wall of the triangular chuck, and the two protrusions are respectively slidably sleeved on the guide rods on the corresponding sides. The triangular chuck is located between two of the fixing pieces, and the inner diameter of the triangular chuck is larger than the outer diameter of the fixing pieces.

[0014] The triangular chuck is also slidably fitted with a plurality of evenly distributed triangular blocks, and one adjacent end of each of the plurality of triangular blocks is used to clamp the connecting tube.

[0015] Preferably, a drive disk is rotatably installed inside the triangular chuck. A spring groove for driving multiple triangular blocks to move synchronously is provided on one side of the drive disk. A drive block is fixedly connected to the side of each of the multiple triangular blocks that is close to the drive disk. The multiple drive blocks are all locked in the spring groove.

[0016] An extension tube is fixedly connected to one side of the triangular chuck, and the other end of the extension tube is threadedly sleeved onto one end of the threaded sleeve of the first cable connector.

[0017] Preferably, a micro motor is also fixedly installed on the triangular chuck, and the output end of the micro motor is fixedly connected to a bevel gear located inside the triangular chuck. A gear disk that meshes with the bevel gear is installed on one side of the drive disk.

[0018] Preferably, the two semicircular rings are located on the same vertical plane and can be spliced ​​to form the same ring, and each of the two semicircular rings is slidably fitted with two fixing rods of the same height. Nuts are threaded onto the fixing rods, and the nuts are respectively fitted to one side of the corresponding semicircular ring. A plurality of guide slide rods are fixedly connected to one side of the triangular chuck, and the other ends of the guide slide rods are slidably fitted into the corresponding fixing rods.

[0019] Each of the fixing rods is also fixedly fitted with a fixing ring, and each of the circuit breaking springs is respectively fitted onto the corresponding fixing rod, with the two ends of each of the circuit breaking springs respectively abutting against the semi-circular ring and the triangular chuck.

[0020] Preferably, a connecting block is installed on each of the two semicircular rings, and the same bolt is fitted on the two connecting blocks at the same relative position. A fastening nut is threaded onto each of the bolts.

[0021] A manufacturing process for an impact-resistant and short-circuit-proof explosion-proof cable, used to manufacture the aforementioned impact-resistant and short-circuit-proof explosion-proof cable, includes the following manufacturing steps:

[0022] S1. Drawing and stranding: Drawing metal raw materials to obtain conductive wire cores with the required cross-sectional area and size, and then twisting multiple conductive wire cores in one desired direction to form a cable core.

[0023] S2, Covering: The cable sheath is extruded over the cable core obtained by S2;

[0024] S3. Assembly: Install the connectors between adjacent cable sheaths.

[0025] (III) Beneficial Effects

[0026] Compared with the prior art, the present invention provides an impact-resistant and short-circuit-proof explosion-proof cable and its manufacturing process, which has the following beneficial effects:

[0027] 1. The impact-resistant and short-circuit-proof explosion-proof cable and its manufacturing process ensure that when the cable is impacted by external force, the buffer spring will preferentially undergo elastic deformation, thus protecting the cable from external impact or tension while ensuring unobstructed circuit. In addition, when the cable is continuously subjected to external tension or impact, the two ends of the buffer spring installed by spot welding will disconnect from the fixing discs on the first and second cable connectors, thereby disconnecting the two ends of the cable core from the first and second cable connectors respectively, avoiding continuous impact or tension that could cause cable breakage and damage, and further improving the cable's self-protection performance.

[0028] 2. The impact-resistant and short-circuit-proof explosion-proof cable and its manufacturing process utilize a temperature sensor on the connecting pipe to monitor the temperature rise of the cable core under open-circuit conditions. A micro-motor rotates in the reverse direction, causing multiple triangular clamps to release from their fixing to the connecting pipe. Under the elastic action of multiple open-circuit springs and the guiding action of the guide rod, the triangular clamp moves away from the annular groove, thereby causing the first cable connector to disengage from a section of the cable core. This achieves autonomous open-circuit breaking, preventing irreversible damage to the entire cable line and further improving the cable's safety during use. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of an explosion-proof cable that is impact-resistant and short-circuit-proof according to the present invention.

[0030] Figure 2 This is a partial three-dimensional structural diagram of an explosion-proof cable that is impact-resistant and short-circuit-proof according to the present invention;

[0031] Figure 3 This is a three-dimensional cross-sectional view of the first cable connector portion of an explosion-proof cable that is impact-resistant and short-circuit-proof according to the present invention.

[0032] Figure 4This is a three-dimensional structural diagram of a connecting pipe for an explosion-proof cable that is impact-resistant and short-circuit-proof according to the present invention.

[0033] Figure 5 This is a three-dimensional cross-sectional view of the triangular chuck structure of an explosion-proof cable that is impact-resistant and short-circuit-proof according to the present invention.

[0034] Figure 6 This is a three-dimensional structural diagram of a partially spring-loaded assembly of an explosion-proof cable that is impact-resistant and short-circuit-proof according to the present invention.

[0035] Figure 7 This is a three-dimensional structural diagram of the elastic component of an explosion-proof cable that is impact-resistant and short-circuit-proof according to the present invention.

[0036] In the diagram: 1. Cable sheath; 2. Cable core; 3. Connecting tube; 4. First cable connector; 5. Second cable connector; 6. Threaded sleeve; 7. Fixing disc; 8. Buffer spring; 9. Cold shrink tubing; 10. Rubber ring; 11. Annular groove; 12. Fixing plate; 13. Guide rod; 14. Triangular chuck; 15. Triangular locking block; 16. Drive disc; 17. Spring groove; 18. Micro motor; 19. Semicircular ring; 20. Fixing rod; 21. Guide slide rod; 22. Fixing ring; 23. Circuit breaker spring; 24. Extension tube. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes an explosion-proof cable that is resistant to impact and short circuits and its manufacturing process.

[0039] In one typical implementation of this application, such as Figure 1-7As shown, an explosion-proof cable with impact resistance and short-circuit protection includes multiple cable cores 2 sleeved within a cable sheath 1, and a connector for connecting adjacent sections of the cable sheath 1. The connector includes a connecting tube 3 with one end sleeved on one end of the cable sheath 1, and a first cable connector 4 connected to the other end of the connecting tube 3. The other end of the first cable connector 4 is also provided with a second cable connector 5 arranged coaxially with it. An elastic component is also provided between the first cable connector 4 and the second cable connector 5. The elastic component includes a buffer spring 8 indirectly connected to the first cable connector 4 and the second cable connector 5 by spot welding. One end of each section of the multiple cable cores 2 passes sequentially through the first cable connector 4 and the second cable connector 5. Furthermore, the length of multiple cable cores 2 in the corresponding segment between the first cable connector 4 and the second cable connector 5 is greater than the distance between the first cable connector 4 and the second cable connector 5. The connecting pipe 3 is also equipped with a circuit breaker assembly for disconnecting the cable sheath 1 of adjacent segments. The circuit breaker assembly includes a triangular chuck 14 indirectly connected to the first cable connector 4, and two semicircular rings 19 sleeved on the connecting pipe 3. A spring-loaded assembly is also provided between the semicircular rings 19 and the triangular chuck 14. The spring-loaded assembly includes multiple circuit breaker springs 23 for actively disconnecting the cable sheath 1 of adjacent segments when the cable core 2 is short-circuited. When the cable is in use as a whole, due to the elastic effect of the buffer springs 8, when the cable as a whole encounters external force pulling or impact, the buffer springs 8 extend. The cable is lengthened, and a longer cable core 2 is pre-installed between the first cable connector 4 and the second cable connector 5. This increases the overall length of the cable while ensuring that the cable core 2 remains connected to the first and second cable connectors 4 and 5, thus providing impact resistance. Furthermore, under the action of the buffer spring 8, the cable actively returns to its initial state when the external force disappears. Simultaneously, because the buffer spring 8 is spot-welded at both ends, when the external force is large, the buffer spring 8 disconnects the connections at both ends, and the cable core 2 actively disengages from the connections of the first and second cable connectors 4 and 5, thereby protecting the cable from continuous pulling and impact, effectively protecting the cable from external damage. In addition to preventing damage from impact, an electrically connected temperature sensor and controller can be installed on the connecting pipe 3. The temperature sensor monitors the temperature of the cable core 2 in real time and sends the temperature information to the controller for judgment. When the controller determines that the temperature of the cable core 2 exceeds the set range, it sends a disconnect signal to the circuit breaker component, thereby controlling the triangular chuck 14 to release its fixing effect on the connecting pipe 3. Under the elastic action of multiple circuit breaker springs 23, the first cable connector 4 is actively popped open, so that its input end is completely separated from one end of one of the multiple cable cores 2 on one section, thereby achieving an active circuit breaker effect and avoiding irreversible damage to the cable as a whole under the circuit breaker state, further improving the safety of the cable during use.

[0040] In a preferred embodiment of this invention, one end of one segment of the cable sheath 1 contains multiple cable cores 2 that pass through a connecting tube 3 and are connected to the input end of the first cable connector 4. The two ends of another segment of multiple cable cores 2 are respectively connected to the output end of the first cable connector 4 and the input end of the second cable connector 5. The length of this segment of multiple cable cores 2 is greater than the distance between the first cable connector 4 and the second cable connector 5. One end of one segment of the cable sheath 1 and one end of the connecting tube 3 are also fitted with the same cold-shrink tubing 9. Both ends of the cold-shrink tubing 9 are fitted with rubber rings 10, and the connection... An annular groove 11 corresponding to the position of one of the rubber rings 10 is also provided on the outer wall of one end of the tube 3. By setting the cold shrink tube 9, in the natural state, the two ends of the cold shrink tube 9 shrink, connecting one end of one section of the cable sheath 1 to one end of the connecting tube 3. When disassembly is required, simply heat the cold shrink tube 9 to easily separate the cable sheath 1 from the connecting tube 3. At the same time, by setting the rubber ring 10, the fastening effect of the two ends of the cold shrink tube 9 is improved. In addition, by setting the annular groove 11, in conjunction with one of the rubber rings 10, the connection strength between the connecting tube 3 and the cable sheath 1 is improved.

[0041] In a preferred embodiment of this invention, threaded sleeves 6 are fixedly fitted onto the outer walls of both the first cable connector 4 and the second cable connector 5. Fixed discs 7 are threaded onto both threaded sleeves 6. A buffer spring 8 is fitted onto one end of each of the first cable connector 4 and the second cable connector 5, with both ends of the buffer spring 8 spot-welded to the corresponding fixed discs 7. During normal cable use, the buffer spring 8 remains unloaded at both ends. When the cable line is subjected to external impact or tensile force, the buffer spring 8 preferentially undergoes elastic deformation, cooperating with the longer cable core 2 between the first cable connector 4 and the second cable connector 5. The design ensures that the first cable connector 4 and the second cable connector 5 do not detach from one end of the corresponding cable core 2, thus protecting the cable from external impact or pulling while ensuring uninterrupted circuit operation. Furthermore, when the cable is continuously subjected to external pulling or impact, the two ends of the spot-welded buffer spring 8 will disconnect from the fixing disc 7 on the first cable connector 4 and the second cable connector 5, thereby disconnecting the two ends of the cable core 2 from the first cable connector 4 and the second cable connector 5 respectively. This prevents the cable from being damaged by continuous impact or pulling, further improving the cable's self-protection performance.

[0042] In a preferred embodiment of this invention, a plurality of evenly distributed fixing plates 12 are fixedly sleeved on the outer wall of the connecting pipe 3, and two guide rods 13 with corresponding positions are fixedly connected to the outer wall of the connecting pipe 3. Two protrusions of the same height are fixedly installed on the outer wall of the triangular chuck 14, and the two protrusions are slidably sleeved on the guide rods 13 on the corresponding sides. The triangular chuck 14 is located between the two fixing plates 12, and the inner diameter of the triangular chuck 14 is larger than the outer diameter of the fixing plates 12. A plurality of evenly distributed triangular clamping blocks 15 are slidably sleeved on the triangular chuck 14, and one adjacent end of the plurality of triangular clamping blocks 15 is used to clamp the connecting pipe 3. A drive disk 16 is rotatably installed inside the triangular chuck 14, and one side of the drive disk 16 is provided with a drive mechanism. Multiple triangular locking blocks 15 move synchronously through spring grooves 17. Each of the triangular locking blocks 15 has a drive block fixedly connected to one side of the drive disk 16. All drive blocks are locked within the spring grooves 17. An extension cylinder 24 is fixedly connected to one side of the triangular chuck 14. The other end of the extension cylinder 24 is threaded onto one end of the threaded sleeve 6 on the first cable connector 4. A micro motor 18 is fixedly mounted on the triangular chuck 14. The output end of the micro motor 18 is fixedly connected to a bevel gear located within the triangular chuck 14. A gear disk meshing with the bevel gear is mounted on one side of the drive disk 16. Two semicircular rings 19 are located on the same vertical plane and can be joined to form a single ring. Each semicircular ring 19 has two fixed rods 20 of the same height slidably mounted on it. Each fixed rod 20 is threaded with a nut, which is respectively fitted to one side of the corresponding semicircular ring 19. A plurality of guide slide rods 21 are fixedly connected to one side of the triangular chuck 14, and the other ends of the guide slide rods 21 are slidably fitted into the corresponding fixed rods 20. Each fixed rod 20 is also fixedly fitted with a fixing ring 22. A plurality of circuit-breaking springs 23 are respectively fitted onto the corresponding fixed rods 20, and the two ends of the circuit-breaking springs 23 abut against the semicircular ring 19 and the triangular chuck 14. In use, according to the model of the first cable connector 4, the triangular chuck 14 and the semicircular ring 19 are adjusted to be engaged between two adjacent fixed plates 12, and the micro motor 18 is controlled to rotate in the forward direction, causing the bevel gear to drive the gear disk to rotate. The coil spring groove 17 drives multiple drive blocks to rotate synchronously, causing one end of each of the multiple triangular clamping blocks 15 to approach each other and clamp the connecting pipe 3, thereby fixing the position of the triangular chuck 14. The extension tube 24 then fixes the position of the first cable connector 4. At this time, multiple circuit-breaking springs 23 remain compressed and stored. When the cable is broken, the temperature sensor on the connecting pipe 3 detects the temperature rise of the cable core 2 and sends the temperature information to the controller. When the controller determines that the temperature has reached the set maximum value, it sends a reverse rotation signal to the corresponding micro-motor 18, thereby releasing the multiple triangular clamping blocks 15 from the connecting pipe 3. Under the elastic action of the multiple circuit-breaking springs 23 and the guiding action of the guide rod 13,This causes the triangular chuck 14 to move away from the annular groove 11, thereby disengaging the first cable connector 4 from contact with one section of the cable core 2. This achieves automatic circuit breaking, preventing irreversible damage to the entire cable line and further improving cable safety during use.

[0043] In a preferred embodiment of this invention, each of the two semicircular rings 19 is equipped with a connecting block, and the two connecting blocks at the same relative position are fitted with the same bolt. Each of the bolts is threaded with a fastening nut. By setting a splicing installation method, it is easy to disassemble and assemble the semicircular rings 19, thereby facilitating the adjustment of the initial position of the semicircular rings 19 to adapt to different types of cable connectors.

[0044] A manufacturing process for an impact-resistant and short-circuit-proof explosion-proof cable, used to manufacture the aforementioned impact-resistant and short-circuit-proof explosion-proof cable, includes the following manufacturing steps:

[0045] S1. Drawing and stranding: Drawing metal raw materials to obtain conductive wire cores with the required cross-sectional area and size, and stranding multiple conductive wire cores in a desired direction to form cable core 2.

[0046] S2, Covering: The cable sheath 1 is extruded over the cable core 2 obtained by S2;

[0047] S3. Assembly: Install the connectors between adjacent cable sheath layers 1.

[0048] The working principle of this invention is as follows: When the cable is in normal use, the buffer spring 8 remains unloaded at both ends. When the cable line is subjected to external impact or tension, the buffer spring 8 preferentially undergoes elastic deformation. This deformation, combined with the longer cable core 2 between the first cable connector 4 and the second cable connector 5, prevents the first cable connector 4 and the second cable connector 5 from detaching from one end of the corresponding cable core 2. This protects the cable from external impact or tension while ensuring uninterrupted operation. Furthermore, when the cable is continuously subjected to external tension or impact, the two ends of the spot-welded buffer spring 8 will disconnect from the fixing discs 7 on the first cable connector 4 and the second cable connector 5. This disconnects the two ends of the cable core 2 from the first cable connector 4 and the second cable connector 5, preventing continuous impact or tension from causing cable breakage and further improving the cable's self-protection performance.

[0049] In use, according to the model of the first cable connector 4, adjust the triangular chuck 14 and the semi-circular ring 19 to be respectively engaged between the two adjacent fixing plates 12, and control the micro motor 18 to run in the forward direction, so that the bevel gear drives the gear disk to rotate, thereby causing the coil spring groove 17 to drive multiple drive blocks to rotate synchronously, so that one end of multiple triangular chuck blocks 15 moves closer to each other and clamps the connecting tube 3, thereby fixing the position of the triangular chuck 14, and thus fixing the position of the first cable connector 4 through the extension tube 24. At this time, multiple circuit breaking springs 23 are kept in a compressed and stored state. When the cable is broken, the temperature sensor on the connecting tube 3 monitors the temperature of the cable core 2. As the temperature rises, the temperature information is sent to the controller. When the controller determines that the temperature has reached the set maximum value, it sends a reverse rotation signal to the corresponding micro motor 18. This causes the multiple triangular blocks 15 to release their fixing effect on the connecting pipe 3. Under the elastic action of the multiple circuit-breaking springs 23 and the guiding action of the guide rod 13, the triangular chuck 14 moves away from the annular groove 11. This causes the first cable connector 4 to disengage from one section of the cable core 2, thus achieving autonomous circuit breaking. This avoids irreversible damage to the entire cable line caused by the circuit breaking, thereby further improving the safety of the cable during use.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof cable that is impact-resistant and short-circuit resistant, characterized in that: The cable includes multiple cable cores (2) sleeved in the cable sheath (1) and a connector for connecting adjacent sections of the cable sheath (1). The connector includes a connecting tube (3) sleeved on one end of the cable sheath (1) and a first cable connector (4) connected to the other end of the connecting tube (3). The other end of the first cable connector (4) is also provided with a second cable connector (5) arranged coaxially with it. An elastic component is also provided between the first cable connector (4) and the second cable connector (5). The elastic component includes a buffer spring (8) indirectly connected to the first cable connector (4) and the second cable connector (5) by spot welding. One end of the multiple cable cores (2) of the corresponding section passes through the first cable connector (4) and the second cable connector (5) in sequence. The length of the multiple cable cores (2) of the corresponding section between the first cable connector (4) and the second cable connector (5) is greater than the distance between the first cable connector (4) and the second cable connector (5). The connecting pipe (3) is also provided with a circuit breaking assembly for disconnecting the adjacent section of the cable sheath (1). The circuit breaking assembly includes a triangular chuck (14) indirectly connected to the first cable connector (4) and two semicircular rings (19) sleeved on the connecting pipe (3). A spring-opening assembly is also provided between the semicircular rings (19) and the triangular chuck (14). The spring-opening assembly includes multiple circuit breaking springs (23) for actively disconnecting the adjacent section of the cable sheath (1) when the cable core (2) is short-circuited. The outer wall of the connecting pipe (3) is also fixedly fitted with a plurality of evenly distributed fixing pieces (12), and the outer wall of the connecting pipe (3) is also fixedly connected with two guide rods (13) with corresponding positions. The outer wall of the triangular chuck (14) is fixedly installed with two protrusions of the same height, and the two protrusions are respectively slidably fitted on the guide rods (13) on the corresponding side. The triangular chuck (14) is located between the two fixing pieces (12), and the inner diameter of the triangular chuck (14) is larger than the outer diameter of the fixing pieces (12). A drive disk (16) is also rotatably installed inside the triangular chuck (14). A spring groove (17) for driving multiple triangular blocks (15) to move synchronously is provided on one side of the drive disk (16). A drive block is also fixedly connected to the side of the multiple triangular blocks (15) close to the drive disk (16). The multiple drive blocks are all locked in the spring groove (17). An extension tube (24) is also fixedly connected to one side of the triangular chuck (14), and the other end of the extension tube (24) is threaded onto one end of the threaded sleeve (6) on the first cable connector (4). The triangular chuck (14) is also slidably fitted with a plurality of evenly distributed triangular blocks (15), and one adjacent end of each of the plurality of triangular blocks (15) is used to clamp the connecting tube (3). A micro motor (18) is also fixedly installed on the triangular chuck (14). The output end of the micro motor (18) is fixedly connected to a bevel gear located in the triangular chuck (14). A gear disk that meshes with the bevel gear is installed on one side of the drive disk (16).

2. The explosion-proof cable with impact resistance and short-circuit protection according to claim 1, characterized in that: One end of one of the multiple cable cores (2) in one section of the cable sheath (1) passes through the connecting pipe (3) and is connected to the input end of the first cable connector (4). The two ends of the other section of multiple cable cores (2) are respectively connected to the output end of the first cable connector (4) and the input end of the second cable connector (5). The length of this section of multiple cable cores (2) is greater than the distance between the first cable connector (4) and the second cable connector (5). One end of the cable sheath (1) and one end of the connecting pipe (3) are fitted with the same cold shrink tube (9).

3. The explosion-proof cable with impact resistance and short-circuit protection according to claim 2, characterized in that: Both ends of the cold shrink tube (9) are fitted with rubber rings (10), and an annular groove (11) corresponding to the position of one of the rubber rings (10) is also opened on the outer wall of one end of the connecting tube (3).

4. The explosion-proof cable with impact resistance and short-circuit protection according to claim 2, characterized in that: Both the first cable connector (4) and the second cable connector (5) are fixedly fitted with threaded sleeves (6), and both threaded sleeves (6) are threadedly fitted with fixed discs (7). The buffer spring (8) is fitted on one end of the first cable connector (4) and the second cable connector (5), and the two ends of the buffer spring (8) are spot-welded to the fixed discs (7) on the corresponding sides.

5. The explosion-proof cable with impact resistance and short-circuit protection according to claim 1, characterized in that: The two semicircular rings (19) are located on the same vertical plane and can be spliced ​​to form the same ring. Two fixed rods (20) of the same height are slidably sleeved on the two semicircular rings (19). Nuts are threaded onto the multiple fixed rods (20). The multiple nuts are respectively attached to one side of the corresponding semicircular ring (19). Multiple guide slide rods (21) are fixedly connected to one side of the triangular chuck (14). The other end of the multiple guide slide rods (21) is slidably sleeved in the corresponding fixed rod (20). Each of the fixed rods (20) is also fixedly fitted with a fixed ring (22), and each of the circuit breaking springs (23) is respectively fitted on the corresponding fixed rod (20), and the two ends of each of the circuit breaking springs (23) respectively abut against the semi-circular ring (19) and the triangular chuck (14).

6. The explosion-proof cable with impact resistance and short-circuit protection according to claim 5, characterized in that: Both of the two semicircular rings (19) are equipped with connecting blocks, and the two connecting blocks at the same relative position are fitted with the same bolt, and multiple bolts are threaded with fastening nuts.

7. A manufacturing process for an impact-resistant and short-circuit-proof explosion-proof cable, used to manufacture the impact-resistant and short-circuit-proof explosion-proof cable according to any one of claims 1-6, characterized in that: The manufacturing process includes the following steps: S1. Drawing and stranding: The metal raw material is drawn to obtain a conductive wire core with the required cross-sectional area and size. Multiple conductive wire cores are wound and stranded in a desired direction to form a cable core (2). S2, Covering: The cable sheath (1) is extruded over the cable core (2) obtained by S2; S3. Assembly: Install the connectors between adjacent cable sheaths (1).

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