A medium-voltage environmentally friendly flame-retardant fireproof cable

Abstract

This invention discloses a medium-voltage, environmentally friendly, flame-retardant, and fire-resistant cable, belonging to the field of cable technology. It includes a cable sheath and a fire extinguishing mechanism. The fire extinguishing mechanism consists of two sets, each mounted on the cable sheath. These mechanisms are used to extinguish fires on the cable sheath. A rotating motor drives a movable box to move on the cable sheath. Through the cooperation of a cutting blade and a cutting tool, the surface of the cable sheath can be quickly cut into barrier sections, effectively reducing the spread of fire. By adjusting the position of the components, the movable box is used for fire extinguishing. When the cable sheath needs to be removed for maintenance, it can be easily removed through the cooperation of the connecting motor and other components. The cable sheath is equipped with pressure-resistant holes and a rebound bladder, which facilitates the return to its original shape under pressure. When squeezed, the compression tube compresses, and the movable block moves within the bladder. Through the cooperation of a fixed spring and a protective sleeve, the cable sheath is pushed to quickly return to its original shape, enhancing the cable sheath's pressure resistance.

Description

Technical Field

[0001] This invention belongs to the field of cable technology, specifically a medium-voltage, environmentally friendly, flame-retardant, and fire-resistant cable. Background Technology

[0002] A cable is an electrical energy or signal transmission device, typically composed of several or groups of conductors. With the rapid development of the power industry, medium-voltage cables play a crucial role in power transmission and distribution systems. Environmentally friendly flame-retardant and fire-resistant cables, as a type of medium-voltage cable, have received widespread attention and application due to their multiple advantages, including environmental friendliness, flame retardancy, and fire resistance. Manufactured using environmentally friendly materials, these cables have minimal environmental impact during production and use, meeting the requirements of sustainable development. Furthermore, their flame-retardant and fire-resistant properties effectively prevent the spread of flames, reducing the damage to cables and related equipment during fires and ensuring the stable operation of the power system. The application of environmentally friendly flame-retardant and fire-resistant cables is particularly important in densely populated and critical facilities such as high-rise buildings, subways, and tunnels, providing reliable power protection for people's lives and property.

[0003] While some medium-voltage environmentally friendly flame-retardant fireproof cables in the existing technology possess certain flame-retardant properties, in actual fires, the fire may still spread rapidly and cannot be effectively controlled, resulting in serious damage to the cables and related equipment. Firefighting and cable sheath removal during maintenance require additional tools and complex operations, increasing maintenance costs. Furthermore, some cables are prone to deformation or even damage when subjected to external pressure, affecting their normal use and lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a medium-voltage, environmentally friendly, flame-retardant, and fire-resistant cable. A rotating motor drives a movable box to move on the cable sheath. Combined with the synergistic action of a pusher, a rotating motor, and an installation motor, the cable sheath surface can be quickly cut into barrier sections, effectively reducing the spread of fire and significantly improving the cable's flame-retardant and fire-resistant performance. This ensures the cable's safety in dangerous situations such as fires and reduces damage to the cable and related equipment. By adjusting the position of the components, the movable box can be used for fire extinguishing. When maintenance requires removing the cable sheath, the motor and other components can easily remove it without additional tools or complex operations, improving the efficiency of cable maintenance and handling. The cable sheath is equipped with pressure-resistant holes and a rebound bladder, facilitating recovery to its original shape under pressure. When squeezed, the compression tube compresses, and the movable block moves within the bladder. The fixed spring and protective sleeve work together to quickly restore the cable sheath to its original shape, enhancing its pressure resistance, extending the cable's service life, and reducing the risk of cable damage caused by external pressure.

[0005] The technical solution adopted in this invention is as follows: a medium-voltage environmentally friendly flame-retardant and fireproof cable, comprising: a cable sheath; a fire extinguishing mechanism, wherein two sets of the fire extinguishing mechanism are provided, each set of the fire extinguishing mechanism being provided on the cable sheath, and the mechanism being provided for flame retardant fire extinguishing of the cable sheath; and a pressure-resistant mechanism, wherein multiple sets of the pressure-resistant mechanism are provided, each set of the pressure-resistant mechanism being provided inside the cable sheath, and the mechanism being provided for increasing the pressure resistance of the cable.

[0006] Each fire extinguishing mechanism includes a movable box, multiple sets of movable components, a power component, multiple sets of adjusting components, multiple sets of cutting components, and multiple sets of fire extinguishing components. Each set of movable components is mounted on a cable sheath, the movable box is mounted on the movable component, the power component is mounted on the movable box, each set of adjusting components is mounted on the power component, each set of cutting components is mounted on the adjusting component, and each set of fire extinguishing components is mounted on the cutting component.

[0007] Each set of moving components includes a fixed electric telescopic rod, a rotating motor, a fixed frame, a fixed rod, and two fixed wheels. One end of the fixed electric telescopic rod is fixedly connected to the inner wall of one side of the moving box. The outer surface of one side of the fixed frame is fixedly connected to the extended end of the fixed electric telescopic rod. The two ends of the fixed rod are rotatably connected between the inner walls of the two sides of the fixed frame. The two fixed wheels are fixedly sleeved on the outer surface of the fixed rod. The rotating motor is fixedly connected to the outer surface of one side of the fixed frame, and the output end of the rotating motor is fixedly connected to one end of the fixed rod.

[0008] The power component includes a mounting motor, a mounting gear, a rotating gear, and a rotating ring. The mounting motor is fixedly connected to the upper inner wall of the mobile box. The mounting gear is fixedly sleeved on the output end of the mounting motor. The rotating ring rotates through the outer surface of the mobile box. The rotating gear is fixedly sleeved on the outer surface of the rotating ring, and the rotating gear and the mounting gear mesh with each other.

[0009] Each set of adjustment components includes a push electric telescopic rod, a connecting block, a connecting gear, a connecting motor, and a transmission gear. One end of the push electric telescopic rod is fixedly connected to one side of the outer surface of the rotating ring. One end of the connecting block is rotatably connected to the extended end of the push electric telescopic rod. The connecting gear is fixedly sleeved on the outer surface of the connecting block. The connecting motor is fixedly connected to the extended end of the push electric telescopic rod. The transmission gear is fixedly sleeved on the output end of the connecting motor, and the transmission gear and the connecting gear mesh with each other.

[0010] Each set of cutting components includes a rotary motor, a connecting frame, a connecting rod, two cutting blades, and a cutting blade. One outer surface of the connecting frame is fixedly connected to one end of the connecting block. The two ends of the connecting rod are rotatably connected between the two inner walls of the connecting frame. Each cutting blade is fixedly sleeved on the outer surface of the connecting rod. One end of the cutting blade is fixedly connected to one inner wall of the connecting frame. The rotary motor is fixedly connected to one outer surface of the connecting frame, and the output end of the rotary motor is fixedly connected to one end of the connecting rod.

[0011] Each fire extinguishing component includes a support rod, a support spring, a moving block, and a fire extinguishing rod. The outer surface of one side of the connecting frame has an installation groove. The support rod is fixedly connected between the upper and lower inner walls of the installation groove. The moving block is slidably sleeved on the outer surface of the support rod. The support spring is fixedly sleeved on the outer surface of the support rod and is fixedly connected between the connecting frame and the moving block. One end of the fire extinguishing rod is fixedly connected to the outer surface of one side of the moving block.

[0012] Each of the pressure-resistant mechanisms includes an airbag, a compression tube, a rubber fixing block, a fixing spring, a protective sleeve, and a movable block. The airbag is fixedly embedded inside the cable sheath. The bottom of the compression tube is fixedly connected to the top of the airbag. The bottom of the rubber fixing block is fixedly connected to one side of the inner wall of the airbag. The movable block is slidably embedded between the inner walls of the compression tube. The fixing spring is fixedly connected between the movable block and the rubber fixing block. The protective sleeve is fixedly sleeved on the outer surface of the fixing spring.

[0013] The cable sheath has multiple pressure-resistant holes between its inner walls, multiple copper cores are fixedly connected between its inner walls, a filling layer is fixedly connected between the multiple copper cores, and multiple rebound bladders are fixedly connected to one outer surface of the filling layer.

[0014] A method for using a medium-voltage, environmentally friendly, flame-retardant, and fire-resistant cable includes the following steps:

[0015] Step 1: Flame Retardant Application of Cable Sheath: When the cable sheath catches fire, turn on the rotating motor. The rotating motor drives the fixed rod and fixed wheel to rotate, causing the fixed wheel to move the moving box on the cable sheath. By pushing the electric telescopic rod, the connecting block and connecting frame are moved until the cutter and the cutting blade contact the cable sheath. Turn on the rotating motor again, which drives the connecting rod and the cutting blade to rotate. At the same time, the installation motor drives the installation gear to rotate. Through the meshing of the installation gear and the rotating gear, the rotating ring drives the cutting blade and the cutting blade to rotate, cutting the surface of the cable sheath into a barrier section to reduce the spread of fire.

[0016] Step 2, Fire Extinguishing from Cable Sheath: After cutting, push the electric telescopic rod to detach the cutting blade and cutter from the cable sheath. With the help of the support spring, make the fire extinguishing rod fit against the cable sheath. By rotating the motor, the fixed rod and fixed wheel will rotate, and the fixed wheel will move the mobile box on the cable sheath to extinguish the fire.

[0017] Step 3: Remove the cable sheath: When it is necessary to remove the cable sheath during maintenance, turn on the connecting motor to drive the transmission gear to rotate. Through the meshing of the transmission gear and the connecting gear, the connecting gear drives the connecting block and the connecting frame to rotate, causing the cutting blade and the cutting knife to rotate. The fixed wheel drives the moving box to move on the cable sheath, which can remove the cable sheath.

[0018] Step 4, Cable Sheath Compression Resistance: When the cable sheath is subjected to pressure, the combination of the compression hole and the rebound bladder facilitates the cable sheath to return to its original shape. At the same time, the compression tube is compressed, and the movable block moves inside the air bladder. Through the cooperation of the fixed spring and the protective sleeve, the movable block pushes the cable sheath to quickly return to its original shape, increasing the cable sheath's compression resistance.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] (1) In this invention, the moving box is moved on the cable sheath by rotating the motor. Combined with the synergistic effect of the electric telescopic rod, rotating motor, and installation motor, the surface of the cable sheath can be quickly cut into barrier sections, effectively reducing the spread of fire, greatly improving the flame retardant and fireproof performance of the cable, ensuring the safety of the cable in dangerous situations such as fire, and reducing the damage caused by fire to the cable and related equipment.

[0021] (2) In this invention, by adjusting the position of the components, fire extinguishing is carried out using a mobile box. When it is necessary to remove the cable sheath during maintenance, the cable sheath can be easily removed by connecting the motor and other components without the need for additional tools and complicated operations, thus improving the efficiency of cable maintenance and processing.

[0022] (3) In this invention, the cable sheath is provided with pressure-resistant holes and rebound bladders, which facilitates the restoration of the original shape when subjected to pressure. When squeezed, the compression tube is compressed and the movable block moves in the air bladder. Through the cooperation of the fixed spring and the protective sleeve, the cable sheath is pushed to quickly restore the original shape, which enhances the pressure resistance of the cable sheath, extends the service life of the cable, and reduces the risk of cable damage caused by external pressure. Attached Figure Description

[0023] Figure 1 This is a frontal perspective view of the present invention;

[0024] Figure 2 This is a frontal three-dimensional sectional view of the present invention;

[0025] Figure 3 This is a partial frontal perspective sectional view of the present invention;

[0026] Figure 4 This is a side perspective sectional view of the three-dimensional portion of the present invention;

[0027] Figure 5 This is a front perspective view of the fire extinguishing mechanism portion of the present invention;

[0028] Figure 6 This is a side perspective sectional view of a portion of the fire extinguishing mechanism of the present invention;

[0029] Figure 7 For the present invention Figure 6 Sectional view of part A;

[0030] Figure 8 This is a front perspective perspective sectional view of the fire extinguishing mechanism of the present invention;

[0031] Figure 9 This is a front perspective view of the anti-compression mechanism portion of the present invention;

[0032] Figure 10 This is a side perspective sectional view of the anti-compression mechanism of the present invention.

[0033] Markings in the diagram: 1. Cable sheath; 2. Fire extinguishing mechanism; 201. Movable box; 202. Fixed electric telescopic pole; 203. Rotating motor; 204. Fixed frame; 205. Fixed pole; 206. Fixed wheel; 207. Motor mounting; 208. Mounting gear; 209. Rotating gear; 210. Rotating ring; 211. Pushing electric telescopic pole; 212. Connecting block; 213. Connecting gear; 214. Connecting motor; 215. Transmission gear. 216. Rotary motor; 217. Connecting frame; 218. Connecting rod; 219. Cutting blade; 220. Cutting knife; 221. Support rod; 222. Support spring; 223. Moving block; 224. Fire extinguishing rod; 3. Pressure-resistant mechanism; 301. Airbag; 302. Compression tube; 303. Rubber fixing block; 304. Fixing spring; 305. Protective sleeve; 306. Moving block; 4. Filling layer; 5. Rebound bladder; 6. Pressure-resistant hole; 7. Copper core. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] Reference Figures 1-10This invention provides a technical solution: a medium-voltage environmentally friendly flame-retardant and fireproof cable, comprising: a cable sheath 1; a fire extinguishing mechanism 2, of which two sets are provided, each set of fire extinguishing mechanism 2 being disposed on the cable sheath 1, and the purpose of the fire extinguishing mechanism 2 being disposed on the cable sheath 1; and a pressure-resistant mechanism 3, of which multiple sets are provided, each set of pressure-resistant mechanism 3 being disposed inside the cable sheath 1, and the purpose of the pressure-resistant mechanism 3 being disposed on the cable sheath 1.

[0036] In this implementation plan: the fire extinguishing mechanism 2 is used to extinguish the fire by flame retardant of the cable sheath 1, which can prevent the spread of fire and remove the cable sheath 1. The pressure-resistant mechanism 3 increases the cable's pressure resistance, extends the cable's service life, and reduces the risk of cable damage caused by external pressure.

[0037] Specifically, each fire extinguishing mechanism 2 includes a mobile box 201, multiple sets of moving parts, a power unit, multiple sets of adjusting parts, multiple sets of cutting parts, and multiple sets of fire extinguishing parts. Each set of moving parts is mounted on the cable sheath 1, the mobile box 201 is mounted on the moving parts, the power unit is mounted on the mobile box 201, each set of adjusting parts is mounted on the power unit, each set of cutting parts is mounted on the adjusting parts, and each set of fire extinguishing parts is mounted on the cutting parts.

[0038] In this embodiment: the movable box 201 is used to install multiple sets of movable components, which can drive the movable box 201 to move; the power component is used to provide rotational power; and the adjustment component is used to adjust the position of the cutting component and the multiple sets of fire extinguishing components.

[0039] Specifically, each set of moving parts includes a fixed electric telescopic rod 202, a rotating motor 203, a fixed frame 204, a fixed rod 205, and two fixed wheels 206. One end of the fixed electric telescopic rod 202 is fixedly connected to the inner wall of one side of the moving box 201. The outer surface of one side of the fixed frame 204 is fixedly connected to the extended end of the fixed electric telescopic rod 202. Both ends of the fixed rod 205 are rotatably connected between the inner walls of the two sides of the fixed frame 204. The two fixed wheels 206 are fixedly sleeved on the outer surface of the fixed rod 205. The rotating motor 203 is fixedly connected to the outer surface of one side of the fixed frame 204, and the output end of the rotating motor 203 is fixedly connected to one end of the fixed rod 205.

[0040] In this embodiment: the fixed electric telescopic rod 202 can push the fixed wheel 206 to move, so that the fixed wheel 206 fits against the cable sheath 1. By turning on the rotating motor 203, the rotating motor 203 drives the fixed rod 205 and the fixed wheel 206 to rotate, so that the fixed wheel 206 drives the moving box 201 to move on the cable sheath 1. The structure and principle of the fixed electric telescopic rod 202 and the rotating motor 203 are existing technologies and will not be described in detail here. Their models can be selected according to the actual use.

[0041] Specifically, the power components include a mounting motor 207, a mounting gear 208, a rotating gear 209, and a rotating ring 210. The mounting motor 207 is fixedly connected to the upper inner wall of the movable box 201. The mounting gear 208 is fixedly sleeved on the output end of the mounting motor 207. The rotating ring 210 rotates through the outer surface of the movable box 201. The rotating gear 209 is fixedly sleeved on the outer surface of the rotating ring 210, and the rotating gear 209 and the mounting gear 208 mesh with each other.

[0042] In this embodiment: the mounting motor 207 drives the mounting gear 208 to rotate, and the meshing of the mounting gear 208 and the rotating gear 209 causes the rotating ring 210 to drive the cutting component to rotate. The structure and principle of the mounting motor 207 are existing technologies and will not be described in detail here. Its model can be selected according to the actual use.

[0043] Specifically, each set of adjustment components includes a push electric telescopic rod 211, a connecting block 212, a connecting gear 213, a connecting motor 214, and a transmission gear 215. One end of the push electric telescopic rod 211 is fixedly connected to the outer surface of one side of the rotating ring 210. One end of the connecting block 212 is rotatably connected to the extended end of the push electric telescopic rod 211. The connecting gear 213 is fixedly sleeved on the outer surface of the connecting block 212. The connecting motor 214 is fixedly connected to the extended end of the push electric telescopic rod 211. The transmission gear 215 is fixedly sleeved on the output end of the connecting motor 214, and the transmission gear 215 and the connecting gear 213 mesh with each other.

[0044] In this embodiment: pushing the electric telescopic rod 211 adjusts the position of the cutting component, turning on the connecting motor 214 drives the transmission gear 215 to rotate, and through the meshing of the transmission gear 215 and the connecting gear 213, the connecting gear 213 drives the connecting block 212 and the connecting frame 217 to rotate, thereby rotating the cutting component. The structure and principle of pushing the electric telescopic rod 211 and the connecting motor 214 are existing technologies and will not be described in detail here. Their models can be selected according to the actual use.

[0045] Specifically, each cutting component includes a rotary motor 216, a connecting frame 217, a connecting rod 218, two cutting blades 219, and a cutting blade 220. One outer surface of the connecting frame 217 is fixedly connected to one end of the connecting block 212. The two ends of the connecting rod 218 are rotatably connected between the two inner walls of the connecting frame 217. Each cutting blade 219 is fixedly sleeved on the outer surface of the connecting rod 218. One end of the cutting blade 220 is fixedly connected to one inner wall of the connecting frame 217. The rotary motor 216 is fixedly connected to one outer surface of the connecting frame 217, and the output end of the rotary motor 216 is fixedly connected to one end of the connecting rod 218.

[0046] In this embodiment: by turning on the rotary motor 216, the rotary motor 216 drives the connecting rod 218 and the cutting blade 219 to rotate. At the same time, the mounting motor 207 drives the mounting gear 208 to rotate. Through the meshing of the mounting gear 208 and the rotating gear 209, the rotating ring 210 drives the cutting blade 219 and the cutting blade 220 to rotate, cutting the surface of the cable sheath 1 into a barrier section to reduce the spread of fire. The structure and principle of the rotary motor 216 are existing technologies and will not be described in detail here. Its model can be selected according to the actual use.

[0047] Specifically, each fire extinguishing component includes a support rod 221, a support spring 222, a moving block 223, and a fire extinguishing rod 224. An installation groove is provided on one side of the outer surface of the connecting frame 217. The support rod 221 is fixedly connected between the upper and lower inner walls of the installation groove. The moving block 223 is slidably sleeved on the outer surface of the support rod 221. The support spring 222 is fixedly sleeved on the outer surface of the support rod 221 and is fixedly connected between the connecting frame 217 and the moving block 223. One end of the fire extinguishing rod 224 is fixedly connected to one side of the outer surface of the moving block 223.

[0048] In this embodiment: with the cooperation of the support spring 222, the fire extinguishing rod 224 can move on the support rod 221, so that the fire extinguishing rod 224 is always in contact with the surface of the cable sheath 1.

[0049] Specifically, each pressure-resistant mechanism 3 includes an airbag 301, a compression tube 302, a rubber fixing block 303, a fixing spring 304, a protective sleeve 305, and a movable block 306. The airbag 301 is fixedly embedded inside the cable sheath 1. The bottom of the compression tube 302 is fixedly connected to the top of the airbag 301. The bottom of the rubber fixing block 303 is fixedly connected to the inner wall of one side of the airbag 301. The movable block 306 is slidably embedded between the inner walls of the compression tube 302. The fixing spring 304 is fixedly connected between the movable block 306 and the rubber fixing block 303. The protective sleeve 305 is fixedly sleeved on the outer surface of the fixing spring 304.

[0050] In this embodiment: the airbag 301 is filled with inert gas for fire extinguishing and flame retardancy. When the cable sheath 1 is under pressure, the compression tube 302 is compressed and the movable block 306 moves inside the airbag 301. Through the cooperation of the fixed spring 304 and the protective sleeve 305, the movable block 306 pushes the cable sheath 1 to quickly return to its original state, increasing the pressure resistance of the cable sheath 1.

[0051] Specifically, multiple pressure-resistant holes 6 are provided between the inner walls of the cable sheath 1, multiple copper cores 7 are fixedly connected between the inner walls of the cable sheath 1, a filling layer 4 is fixedly connected between the multiple copper cores 7, and multiple rebound bladders 5 are fixedly connected to one outer surface of the filling layer 4.

[0052] In this embodiment, inert gas is provided inside the rebound bladder 5 and the pressure-resistant hole 6 for fire extinguishing and flame retardancy. The pressure-resistant hole 6 and the rebound bladder 5 are provided to increase the pressure resistance of the cable sheath 1.

[0053] The following describes in detail the usage method of a medium-voltage environmentally friendly flame-retardant fireproof cable provided by an embodiment of the present invention. The usage method includes the following steps: Step 1, Flame retardant cable sheath 1: When the cable sheath 1 catches fire, turn on the rotating motor 203. The rotating motor 203 drives the fixed rod 205 and the fixed wheel 206 to rotate, so that the fixed wheel 206 drives the moving box 201 to move on the cable sheath 1. By pushing the electric telescopic rod 211, the connecting block 212 and the connecting frame 217 are moved until the cutter 220 and the cutting blade 219 contact the cable sheath 1. The rotating motor 216 is turned on, which drives the connecting rod 218 and the cutting blade 219 to rotate. Simultaneously, the mounting motor 207 drives the mounting gear 208 to rotate. Through the meshing of the mounting gear 208 and the rotating gear 209, the rotating ring 210 drives the cutting blade 219 and the cutting blade 220 to rotate, cutting the surface of the cable sheath 1 into a barrier section to reduce the spread of fire. Step two: Extinguishing the cable sheath 1: After cutting, the electric telescopic rod 211 is pushed to disengage the cutting blade 219 and the cutting blade 220 from the cable sheath 1. With the support of spring 222, the fire extinguishing rod 224 is brought into contact with the cable sheath 1. By rotating motor 203, the fixed rod 205 and fixed wheel 206 are rotated, causing the fixed wheel 206 to move the movable box 201 on the cable sheath 1 for fire extinguishing. Step 3: Remove cable sheath 1: When it is necessary to remove cable sheath 1 for maintenance, the connecting motor 214 is turned on to drive the transmission gear 215 to rotate. Through the meshing of the transmission gear 215 and the connecting gear 213, the connecting gear 213 drives the connecting block 212 and the connecting frame 21. 7. Rotate to make the cutting blade 219 and the cutting blade 220 rotate. The fixed wheel 206 drives the moving box 201 to move on the cable sheath 1, which can remove the cable sheath 1. Step 4, cable sheath 1 pressure resistance: When the cable sheath 1 is under pressure, the cooperation of the pressure resistance hole 6 and the rebound bladder 5 makes it easy for the cable sheath 1 to return to its original shape. At the same time, the compression tube 302 is compressed, and the movable block 306 moves in the air bladder 301. Through the cooperation of the fixed spring 304 and the protective sleeve 305, the movable block 306 pushes the cable sheath 1 to quickly return to its original shape, increasing the pressure resistance of the cable sheath 1.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A medium voltage environmentally friendly flame and fire retardant cable, characterized in that, include: Cable sheath (1); Fire extinguishing mechanism (2), wherein two sets of fire extinguishing mechanisms (2) are provided, each set of fire extinguishing mechanisms (2) is provided on the cable sheath (1), and is provided for flame retardant fire extinguishing of the cable sheath (1); and The pressure-resistant mechanism (3) is provided in multiple sets. Each set of the pressure-resistant mechanism (3) is located inside the cable sheath (1) and is designed to increase the cable's pressure resistance. Each group of fire extinguishing mechanisms (2) includes a mobile box (201), multiple sets of moving parts, a power component, multiple sets of adjusting parts, multiple sets of cutting parts, and multiple sets of fire extinguishing parts. Each set of moving parts is mounted on a cable sheath (1), the mobile box (201) is mounted on the moving parts, the power component is mounted on the mobile box (201), each set of adjusting parts is mounted on the power component, each set of cutting parts is mounted on the adjusting part, and each set of fire extinguishing parts is mounted on the cutting part. Each set of moving parts includes a fixed electric telescopic rod (202), a rotating motor (203), a fixed frame (204), a fixed rod (205), and two fixed wheels (206). One end of the fixed electric telescopic rod (202) is fixedly connected to the inner wall of one side of the moving box (201). The outer surface of one side of the fixed frame (204) is fixedly connected to the extended end of the fixed electric telescopic rod (202). The two ends of the fixed rod (205) are rotatably connected between the inner walls of the two sides of the fixed frame (204). The two fixed wheels (206) are fixedly sleeved on the outer surface of the fixed rod (205). The rotating motor (203) is fixedly connected to the outer surface of one side of the fixed frame (204), and the output end of the rotating motor (203) is fixedly connected to one end of the fixed rod (205). The power component includes a mounting motor (207), a mounting gear (208), a rotating gear (209), and a rotating ring (210). The mounting motor (207) is fixedly connected to the upper inner wall of the movable box (201). The mounting gear (208) is fixedly sleeved on the output end of the mounting motor (207). The rotating ring (210) rotates through the outer surface of the movable box (201). The rotating gear (209) is fixedly sleeved on the outer surface of the rotating ring (210), and the rotating gear (209) meshes with the mounting gear (208). Each set of adjustment components includes a push electric telescopic rod (211), a connecting block (212), a connecting gear (213), a connecting motor (214), and a transmission gear (215). One end of the push electric telescopic rod (211) is fixedly connected to the outer surface of one side of the rotating ring (210). One end of the connecting block (212) is rotatably connected to the extended end of the push electric telescopic rod (211). The connecting gear (213) is fixedly sleeved on the outer surface of the connecting block (212). The connecting motor (214) is fixedly connected to the extended end of the push electric telescopic rod (211). The transmission gear (215) is fixedly sleeved on the output end of the connecting motor (214), and the transmission gear (215) meshes with the connecting gear (213). Each set of cutting components includes a rotary motor (216), a connecting frame (217), a connecting rod (218), two cutting blades (219) and a cutting blade (220). One side of the outer surface of the connecting frame (217) is fixedly connected to one end of the connecting block (212). The two ends of the connecting rod (218) are rotatably connected between the two inner walls of the connecting frame (217). Each cutting blade (219) is fixedly sleeved on the outer surface of the connecting rod (218). One end of the cutting blade (220) is fixedly connected to one side of the inner wall of the connecting frame (217). The rotary motor (216) is fixedly connected to one side of the outer surface of the connecting frame (217), and the output end of the rotary motor (216) is fixedly connected to one end of the connecting rod (218). Each fire extinguishing component includes a support rod (221), a support spring (222), a moving block (223), and a fire extinguishing rod (224). The outer surface of one side of the connecting frame (217) is provided with an installation groove. The support rod (221) is fixedly connected between the upper and lower inner walls of the installation groove. The moving block (223) is slidably sleeved on the outer surface of the support rod (221). The support spring (222) is fixedly sleeved on the outer surface of the support rod (221) and is fixedly connected between the connecting frame (217) and the moving block (223). One end of the fire extinguishing rod (224) is fixedly connected to the outer surface of one side of the moving block (223).

2. A medium voltage environmentally friendly flame and fire retardant cable as claimed in claim 1, characterized in that: Each of the pressure-resistant mechanisms (3) includes an airbag (301), a compression tube (302), a rubber fixing block (303), a fixing spring (304), a protective sleeve (305), and a movable block (306). The airbag (301) is fixedly embedded inside the cable sheath (1). The bottom of the compression tube (302) is fixedly connected to the top of the airbag (301). The bottom of the rubber fixing block (303) is fixedly connected to the inner wall of one side of the airbag (301). The movable block (306) is slidably embedded between the inner walls of the compression tube (302). The fixing spring (304) is fixedly connected between the movable block (306) and the rubber fixing block (303). The protective sleeve (305) is fixedly sleeved on the outer surface of the fixing spring (304).

3. The medium-voltage environmentally friendly flame-retardant and fire-resistant cable as described in claim 2, characterized in that: Multiple pressure-resistant holes (6) are provided between the inner walls of the cable sheath (1), and multiple copper cores (7) are fixedly connected between the inner walls of the cable sheath (1). A filling layer (4) is fixedly connected between the multiple copper cores (7), and multiple rebound bladders (5) are fixedly connected to one outer surface of the filling layer (4).

4. A method of using a medium-voltage environmentally friendly flame-retardant and fire-resistant cable, applied to the medium-voltage environmentally friendly flame-retardant and fire-resistant cable as described in claim 3, characterized in that... Includes the following steps: S1, Flame retardant cable sheath (1): When the cable sheath (1) catches fire, turn on the rotating motor (203). The rotating motor (203) drives the fixed rod (205) and the fixed wheel (206) to rotate, so that the fixed wheel (206) drives the moving box (201) to move on the cable sheath (1). By pushing the electric telescopic rod (211), the connecting block (212) and the connecting frame (217) are pushed to move until the cutter (220) and the cutting blade (219) contact the cable. The cable sheath (1) is turned on by the rotary motor (216). The rotary motor (216) drives the connecting rod (218) and the cutting blade (219) to rotate. At the same time, the mounting motor (207) drives the mounting gear (208) to rotate. Through the meshing of the mounting gear (208) and the rotating gear (209), the rotating ring (210) drives the cutting blade (219) and the cutting blade (220) to rotate, cutting the surface of the cable sheath (1) into a barrier section to reduce the spread of fire. S2, Fire extinguishing of cable sheath (1): After cutting, the electric telescopic rod (211) is pushed to drive the cutting blade (219) and the cutting blade (220) to detach from the cable sheath (1). With the cooperation of the support spring (222), the fire extinguishing rod (224) is attached to the cable sheath (1). The rotating motor (203) drives the fixed rod (205) and the fixed wheel (206) to rotate, so that the fixed wheel (206) drives the moving box (201) to move on the cable sheath (1) for fire extinguishing. S3. Removing the cable sheath (1): When it is necessary to remove the cable sheath (1) during maintenance, turn on the connecting motor (214) to drive the transmission gear (215) to rotate. Through the meshing of the transmission gear (215) and the connecting gear (213), the connecting gear (213) drives the connecting block (212) and the connecting frame (217) to rotate, causing the cutting blade (219) and the cutting blade (220) to rotate. Through the fixed wheel (206), the moving box (201) moves on the cable sheath (1) to remove the cable sheath (1). S4. Cable sheath (1) pressure resistance: When the cable sheath (1) is subjected to pressure, the cable sheath (1) can be restored to its original state through the cooperation of the pressure-resistant hole (6) and the rebound bladder (5). At the same time, the compression tube (302) is compressed, and the movable block (306) moves in the air bladder (301). Through the cooperation of the fixed spring (304) and the protective sleeve (305), the movable block (306) pushes the cable sheath (1) to quickly restore its original state, thereby increasing the pressure resistance of the cable sheath (1).

Images