Smoke-suppression flame-retardant cable

Abstract

The invention relates to the technical field of cables, in particular to a smoke-suppression flame-retardant cable, and solves the problems that when the smoke-suppression flame-retardant cable is used, generally, the smoke-suppression flame-retardant cable can only prevent fire spreading and does not have a fire extinguishing function, and a conductor is prone to being pressed and deformed, the smoke-suppression flame-retardant cable comprises a cable structure, and a plurality of flame-retardant structures are arranged in the cable structure; and positioning structures are arranged among the plurality of flame-retardant structures. Inert gas is filled into the inert gas cavity through the gas conveying pipe and the gas filling hole, when a fire disaster occurs, the temperature of a fire source can rise sharply, so that the bimetallic strip is heated to deform, the bimetallic strip is jacked upwards to push the piston rod outwards, the piston rod can adjust the connecting plate and the connecting rod to move outwards at the moment, and therefore the fire disaster can be prevented. And at the moment, a gap is formed between the blocking head and the air outlet, inert gas in the inert gas cavity can be sprayed out to isolate air at the fire source, and fire extinguishing is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and specifically to a smoke-suppressing and flame-retardant cable. Background Art

[0002] A cable is a device for transmitting electrical energy or signals, usually composed of several or several groups of wires. A flame-retardant cable refers to a cable that, under specified test conditions, when the specimen is burned and the test fire source is removed, the spread of the flame is only within a limited range, and the residual flame or afterglow can self-extinguish within a limited time. Its fundamental characteristic is that it may be damaged and unable to operate in case of a fire, but it can prevent the spread of the fire. Generally speaking, in case of a fire in the wire, it can limit the combustion to a local area, without spreading, protect various other devices, and avoid causing greater losses.

[0003] When the existing smoke-suppressing and flame-retardant cables are in use, they usually can only prevent the spread of fire, do not have the function of extinguishing fire, and the conductors are easily deformed under pressure; therefore, they do not meet the existing requirements, and for this reason, we propose a smoke-suppressing and flame-retardant cable. Summary of the Invention

[0004] The purpose of the present invention is to provide a smoke-suppressing and flame-retardant cable to solve the problems in the above-mentioned background art that when the smoke-suppressing and flame-retardant cable is in use, it usually can only prevent the spread of fire, does not have the function of extinguishing fire, and the conductors are easily deformed under pressure, etc.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A smoke-suppressing and flame-retardant cable, including a cable structure, wherein a plurality of flame-retardant structures are arranged inside the cable structure, and a positioning structure is arranged between every two of the plurality of flame-retardant structures; The flame-retardant structure includes a fire-extinguishing arc plate, wing plates, mounting rings, connecting ropes, rope sockets, inert gas chambers, and air outlets. Six air outlets are arranged on the surface of the fire-extinguishing arc plate. Three mounting rings are fixedly installed on both sides of the fire-extinguishing arc plate. Connecting ropes are movably connected inside the mounting rings. Rope sockets are arranged at both ends of the connecting ropes. Wing plates are fixedly installed on the outer surface of the fire-extinguishing arc plate near both sides. Inert gas chambers are arranged inside the fire-extinguishing arc plate.

[0006] Preferably, the flame retardant structure further includes a plugging head, a limiting ring, a fixing rod, a fixing block, a piston rod, a bimetallic strip, a connecting plate, a compression spring and a connecting rod. Six fixing rods are fixedly installed inside each of the fire extinguishing arc plates. Fixing blocks are fixedly installed at the tops of the fixing rods. Piston rods are slidably installed inside the fixing blocks. Bimetallic strips are movably installed between the piston rods and the interiors of the fixing blocks. Connecting plates are fixedly installed at the ends of the piston rods. Limiting rings are fixedly installed at positions near the air outlets inside the fire extinguishing arc plates. Plugging heads are slidably installed inside the air outlets. Connecting rods are fixedly installed on one sides of the plugging heads close to the interiors of the fire extinguishing arc plates. The connecting rods are fixedly connected to the connecting plates. Two compression springs are movably installed between the connecting plates and the limiting rings. One end of each compression spring is connected to the connecting plate, and the other end of each compression spring is connected to the limiting ring.

[0007] Preferably, the cable structure includes an inner sheath, an insulating sleeve, a conductor installation sleeve, a movable sleeve, an elastic strip and an outer sheath. An insulating sleeve is provided inside the inner sheath. A movable sleeve is provided at the center inside the insulating sleeve. Six conductor installation sleeves are provided between the inner side of the insulating sleeve and the movable sleeve. An elastic strip is provided inside the movable sleeve. An outer sheath is provided outside the inner sheath.

[0008] Preferably, the cable structure further includes a spiral conductor, a straight conductor, an elastic support strip and a connecting strip. A plurality of spiral conductors are provided inside the conductor installation sleeve. A plurality of straight conductors are provided inside the spiral conductors. An elastic support strip is provided between each of the conductor installation sleeves. Connecting strips are movably installed inside the elastic support strips.

[0009] Preferably, the positioning structure includes a positioning tube, a fitting plate, a spring groove, a positioning buckle and a compression spring. Fitting plates are fixedly installed at both ends of the positioning tube. Two spring grooves are provided inside the positioning tube. Positioning buckles are slidably installed inside the spring grooves. Compression springs are movably installed between the positioning buckles and the interiors of the spring grooves. One end of each compression spring is connected to the inner wall of the spring groove, and the other end of each compression spring is connected to the positioning buckle.

[0010] Preferably, an air delivery pipe penetrates through the interior of each of the fire extinguishing arc plates movably. Inflation holes are provided on the outer surfaces of the air delivery pipes close to the fire extinguishing arc plates. Positioning holes are provided on the outer surfaces of the air delivery pipes close to the positioning tubes.

[0011] Preferably, the surfaces of the fitting plates are in contact with the surfaces of the fire extinguishing arc plates, and the positioning buckles are movably inserted into the positioning holes.

[0012] Preferably, the connecting ropes are connected to the interiors of the mounting rings on the surfaces of another fire extinguishing arc plate through rope sockets, and the fire extinguishing arc plates are movably installed at positions between the outer sheath and the inner sheath.

[0013] Preferably, the gaps between the conductor mounting sleeves and the elastic support bars are filled with filling materials.

[0014] Preferably, arc-shaped sleeves are fixedly installed near the gas delivery pipes inside the arc extinguishing plates. The gas delivery pipes are movably clamped inside the arc-shaped sleeves, and the gas delivery pipes movably penetrate through the inside of the positioning pipes.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the cooperation of the arc extinguishing plate and the gas delivery pipe, when the device is in use, inert gas can be filled into the inert gas chamber through the gas delivery pipe and the inflation hole. When a fire occurs, the temperature at the fire source will rise sharply, causing the bimetallic strip to deform due to heat, pushing the piston rod outwards by lifting the bimetallic strip upwards. At this time, the piston rod will drive the connecting plate and the connecting rod to move outwards, causing the plugging head to move out of the air outlet. At this time, a gap is generated between the plugging head and the air outlet, and the inert gas inside the inert gas chamber will spray outwards to isolate the air at the fire source, achieving fire extinguishing. And when the fire is extinguished and the temperature drops, the bimetallic strip will no longer deform due to heat and will rebound. At this time, the elastic force of the compression spring will push the connecting plate towards the fixed block, causing the plugging head to retract into the air outlet to block the air outlet. 2. Through the cooperation of the mounting ring and the connecting rope, when the device is in use, the connecting rope and the rope sleeve head can pass through the inside of the mounting rings on the surfaces of the two arc extinguishing plates in an S shape, thereby connecting the arc extinguishing plates. Thus, the device can adjust the inner size of the arc extinguishing plates according to the size of the cable structure, enabling the flame retardant structure to be adapted to different sizes of cable structures for installation. At the same time, when the fire burns to the position of the mounting ring, the connecting rope will be burned off. At this time, the connection state between the arc extinguishing plates will be released and they will spread outwards, causing the arc extinguishing plates to be damaged by impact or burned by the fire source, releasing the inert gas inside to prevent the bimetallic strip from malfunctioning due to temperature sensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a partial structural diagram of the flame retardant structure position of the present invention; Figure 3 is a front cross-sectional view of the positioning pipe position of the present invention; Figure 4 is a front cross-sectional view of the arc extinguishing plate position of the present invention; Figure 5 is a partial front cross-sectional view of the arc extinguishing plate of the present invention; Figure 6 For the present invention Figure 3 is a partial structural diagram of part A in; Figure 7 For the present invention Figure 5 Partial structural schematic diagram of part B in

[0017] In the figure: 1. Cable structure; 101. Inner sheath; 102. Insulating sleeve; 103. Conductor mounting sleeve; 104. Spiral conductor; 105. Straight conductor; 106. Movable sleeve; 107. Elastic strip; 108. Elastic support strip; 109. Connecting strip; 110. Outer sheath; 2. Flame-retardant structure; 201. Arc extinguishing piece; 202. Plugging head; 203. Wing plate; 204. Mounting ring; 205. Connecting rope; 206. Rope socket; 207. Inert gas cavity; 208. Limiting ring; 209. Fixed rod; 210. Fixed block; 211. Piston rod; 212. Bimetallic strip; 213. Connecting plate; 214. Compression spring; 215. Connecting rod; 216. Air outlet; 3. Positioning structure; 301. Positioning tube; 302. Fitting plate; 303. Spring groove; 304. Positioning buckle; 305. Extrusion spring; 4. Filling material; 5. Gas transmission pipe; 6. Inflation hole; 7. Positioning hole. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Please refer to Figures 1 to 7 , an embodiment provided by the present invention: a smoke-suppressing and flame-retardant cable, including a cable structure 1, and a plurality of flame-retardant structures 2 are provided inside the cable structure 1, and a positioning structure 3 is provided between the plurality of flame-retardant structures 2; The flame-retardant structure 2 includes an arc extinguishing piece 201, a wing plate 203, a mounting ring 204, a connecting rope 205, a rope socket 206, an inert gas cavity 207 and an air outlet 216. Six air outlets 216 are provided on the surface of the arc extinguishing piece 201, and three mounting rings 204 are fixedly installed on both sides of the arc extinguishing piece 201. A connecting rope 205 is movably connected inside the mounting ring 204, and rope sockets 206 are provided at both ends of the connecting rope 205. Wing plates 203 are fixedly installed on both sides of the outer surface of the arc extinguishing piece 201, and an inert gas cavity 207 is provided inside the arc extinguishing piece 201.

[0020] Through the cooperation of the mounting ring 204 and the connecting rope 205, when the device is in use, the connecting rope 205 and the rope socket 206 can pass through the inside of the mounting ring 204 on the surface of the two fire extinguishing arc plates 201 in an S shape, so as to connect the fire extinguishing arc plates 201. Thus, the device can adjust the inner size of the fire extinguishing arc plates 201 according to the size of the cable structure 1. While enabling the flame retardant structure 2 to be installed to adapt to different sizes of cable structures 1, when the fire source burns to the position of the mounting ring 204, the connecting rope 205 will be burned off. At this time, the connection state between the fire extinguishing arc plates 201 will be released and they will spread outwards, so that the fire extinguishing arc plates 201 will be damaged by impact or burned by the fire source, and the inert gas inside will be released, avoiding the situation where the bimetallic strip 212 fails to sense temperature properly.

[0021] The flame retardant structure 2 further includes a plug 202, a limiting ring 208, a fixing rod 209, a fixing block 210, a piston rod 211, a bimetallic strip 212, a connecting plate 213, a compression spring 214 and a connecting rod 215. Six fixing rods 209 are fixedly installed inside each of the fire extinguishing arc plates 201. Fixing blocks 210 are fixedly installed at the tops of the fixing rods 209. Piston rods 211 are slidably installed inside the fixing blocks 210. Bimetallic strips 212 are movably installed between the piston rods 211 and the inside of the fixing blocks 210. Connecting plates 213 are fixedly installed at the ends of the piston rods 211. Limiting rings 208 are fixedly installed at positions inside the fire extinguishing arc plates 201 close to the air outlet 216. Plugs 202 are slidably installed inside the air outlets 216. Connecting rods 215 are fixedly installed on one side of the plugs 202 close to the inside of the fire extinguishing arc plates 201. The connecting rods 215 are fixedly connected to the connecting plates 213. Two compression springs 214 are movably installed between the connecting plates 213 and the limiting rings 208. One end of the compression spring 214 is connected to the connecting plate 213, and the other end of the compression spring 214 is connected to the limiting ring 208.

[0022] Through the cooperation of the fire extinguishing arc plate 201 and the air delivery pipe 5, when the device is in use, inert gas can be filled into the inside of the inert gas chamber 207 through the air delivery pipe 5 and the inflation hole 6. When a fire occurs, the temperature at the fire source will rise sharply, so that the bimetallic strip 212 will be deformed by heat, causing the bimetallic strip 212 to push upwards and push the piston rod 211 outwards. At this time, the piston rod 211 will drive the connecting plate 213 and the connecting rod 215 to move outwards, so that the plug 202 will be removed from the inside of the air outlet 216. At this time, a gap will be generated between the plug 202 and the air outlet 216, and the inert gas inside the inert gas chamber 207 will spray outwards to isolate the air at the fire source, achieving fire extinguishing. And when the fire source goes out and the temperature drops, the bimetallic strip 212 will no longer be deformed by heat and will rebound. At this time, the elastic force of the compression spring 214 will push the connecting plate 213 towards the fixing block 210, so that the plug 202 will retract into the inside of the air outlet 216 to block the air outlet 216.

[0023] The cable structure 1 includes an inner sheath 101, an insulating sleeve 102, a conductor mounting sleeve 103, a movable sleeve 106, an elastic strip 107, and an outer sheath 110. An insulating sleeve 102 is provided inside the inner sheath 101. A movable sleeve 106 is provided at the center inside the insulating sleeve 102. Six conductor mounting sleeves 103 are provided between the inner side of the insulating sleeve 102 and the movable sleeve 106. An elastic strip 107 is provided inside the movable sleeve 106. An outer sheath 110 is provided outside the inner sheath 101.

[0024] The cable structure 1 further includes a spiral conductor 104, a straight conductor 105, an elastic support strip 108, and a connecting strip 109. A plurality of spiral conductors 104 are provided inside the conductor mounting sleeve 103. A plurality of straight conductors 105 are provided inside the spiral conductor 104. An elastic support strip 108 is provided between each conductor mounting sleeve 103. A connecting strip 109 is movably mounted inside each elastic support strip 108.

[0025] The positioning structure 3 includes a positioning tube 301, a fitting plate 302, a spring groove 303, a positioning buckle 304, and a compression spring 305. Fitting plates 302 are fixedly mounted at both ends of the positioning tube 301. Two spring grooves 303 are provided inside the positioning tube 301. A positioning buckle 304 is slidably mounted inside each spring groove 303. A compression spring 305 is movably mounted between the positioning buckle 304 and the inside of the spring groove 303. One end of the compression spring 305 is connected to the inner wall of the spring groove 303, and the other end of the compression spring 305 is connected to the positioning buckle 304.

[0026] Through the cooperation of the positioning buckle 304 and the compression spring 305, when the device installs the flame-retardant structure 2, the positioning tube 301 can pass through the surface of the gas transmission pipe 5. At this time, the positioning buckle 304 will be elastically forced by the compression spring 305 and snap into the inside of the positioning hole 7 on the surface of the gas transmission pipe 5, thereby fixing the positioning tube 301. At this time, the fire extinguishing arc plate 201 is installed outside the fitting plate 302, and the fitting plate 302 positions the fire extinguishing arc plate 201. The remaining positioning tubes 301 and fire extinguishing arc plates 201 are repeatedly installed, so that the fire extinguishing arc plates 201 and the positioning tubes 301 are arranged separately on the surface of the gas transmission pipe 5, thereby positioning the fire extinguishing arc plates 201 and avoiding the situation where the inflation hole 6 is not provided inside the inert gas chamber 207.

[0027] The gas transmission pipe 5 movably penetrates through the inside of each fire extinguishing arc plate 201. Inflation holes 6 are provided on the outer surface of the gas transmission pipe 5 close to the fire extinguishing arc plate 201. Positioning holes 7 are provided on the outer surface of the gas transmission pipe 5 close to the positioning tube 301.

[0028] The surfaces of the fitting plates 302 are in contact with the surfaces of the fire extinguishing arc plates 201. The positioning buckles 304 are movably inserted into the inside of the positioning holes 7.

[0029] The connecting ropes 205 are all connected to the inside of the mounting rings 204 on the surface of another extinguishing arc plate 201 through rope sockets 206, and the extinguishing arc plates 201 are movably mounted at the position between the outer sheath 110 and the inner sheath 101.

[0030] The gaps between the conductor mounting sleeves 103 and the elastic support bars 108 are all filled with filling materials 4.

[0031] Arc-shaped sleeves are fixedly mounted at the positions inside the extinguishing arc plates 201 close to the gas transmission pipe 5. The gas transmission pipe 5 is movably clamped into the inside of the arc-shaped sleeve, and the gas transmission pipe 5 movably penetrates through the inside of the positioning pipe 301.

[0032] When the smoke-suppressing and flame-retardant cable is in use, inert gas can be filled into the inside of the inert gas chamber 207 through the gas transmission pipe 5 and the gas injection holes 6. When a fire occurs, the temperature at the fire source will rise sharply, so that the bimetallic strip 212 is heated and deformed, causing the bimetallic strip 212 to push upward and push the piston rod 211 outwards. At this time, the piston rod 211 will drive the connecting plate 213 and the connecting rod 215 to move outwards, so that the blocking head 202 is moved out of the inside of the air outlet 216. At this time, a gap is generated between the blocking head 202 and the air outlet 216, and the inert gas inside the inert gas chamber 207 will spray outwards to isolate the air at the fire source, realizing fire extinguishing. And when the fire source goes out and the temperature drops, the bimetallic strip 212 no longer deforms due to heat and rebounds. At this time, the elastic force of the compression spring 214 will push the connecting plate 213 towards the fixed block 210, so that the blocking head 202 retracts into the inside of the air outlet 216 to block the air outlet 216. The connecting ropes 205 and the rope sockets 206 can pass through the inside of the mounting rings 204 on the surfaces of the two extinguishing arc plates 201 in an S shape, so as to connect the extinguishing arc plates 201. Thus, the device can adjust the inner size of the extinguishing arc plates 201 according to the size of the cable structure 1. While the flame-retardant structure 2 can be adapted to cables of different sizes for installation, when the fire burns to the position of the mounting ring 204, the connecting ropes 205 will be burned off. At this time, the connection state between the extinguishing arc plates 201 will be released and they will spread outwards, so that the extinguishing arc plates 201 are damaged by impact or burned by the fire source, and the inert gas inside is released, avoiding the situation that the bimetallic strip 212 fails to sense temperature. When the device installs the flame-retardant structure 2, the positioning tube 301 can pass through the surface of the gas transmission pipe 5. At this time, the positioning buckle 304 will be elastically pressed by the compression spring 305 and snap into the inside of the positioning hole 7 on the surface of the gas transmission pipe 5, so as to fix the positioning tube 301. At this time, the extinguishing arc piece 201 is installed on the outside of the fitting plate 302, and the fitting plate 302 positions the extinguishing arc piece 201. The installation of the remaining positioning tubes 301 and extinguishing arc pieces 201 is repeated, so that the extinguishing arc pieces 201 and the positioning tubes 301 are arranged separately on the surface of the gas transmission pipe 5, thereby positioning the extinguishing arc pieces 201 and avoiding the situation that the inflation holes 6 are not arranged inside the inert gas chamber 207. Moreover, by means of fixing and supporting the conductor installation sleeve 103 through the elastic support strip 108 and the connecting strip 109, when the device is in use, the situation that the conductor installation sleeve 103 is deformed due to pressure and the internal spiral conductor 104 and linear conductor 105 are deformed and damaged can be avoided.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A smoke suppression and flame retardant cable, comprising a cable structure (1), characterized in that: A plurality of flame-retardant structures (2) are provided inside the cable structure (1), and positioning structures (3) are provided between the plurality of flame-retardant structures (2); The flame retardant structure (2) comprises a fire extinguishing arc sheet (201), a wing plate (203), a mounting ring (204), a connecting rope (205), a rope sleeve (206), an inert gas chamber (207) and an air outlet (216); six air outlets (216) are provided on the surface of the fire extinguishing arc sheet (201); three mounting rings (204) are fixedly mounted on both sides of the fire extinguishing arc sheet (201); the interior of the mounting ring (204) is movably connected with a connecting rope (205); both ends of the connecting rope (205) are provided with a rope sleeve (206); wing plates (203) are fixedly mounted on the outer surface of the fire extinguishing arc sheet (201) at positions close to both sides; and the interior of the fire extinguishing arc sheet (201) is provided with an inert gas chamber (207).

2. The smoke suppression flame retardant cable according to claim 1, characterized in that: The flame retardant structure (2) further comprises a plug (202), a limiting ring (208), a fixing rod (209), a fixing block (210), a piston rod (211), a bimetallic strip (212), a connecting plate (213), a compression spring (214) and a connecting rod (215); six fixing rods (209) are fixedly installed inside the fire extinguishing arc sheet (201); a fixing block (210) is fixedly installed at the top of each fixing rod (209); a piston rod (211) is slidably installed inside each fixing block (210); a bimetallic strip (212) is movably installed between the piston rod (211) and the inside of the fixing block (210); and the end of each piston rod (211) is fixedly installed. A connecting plate (213) is installed, a limiting ring (208) is fixedly installed at a position near the air outlet (216) inside the fire extinguishing arc plate (201), a plugging head (202) is slidably installed inside the air outlet (216), a connecting rod (215) is fixedly installed on one side of the plugging head (202) near the inside of the fire extinguishing arc plate (201), the connecting rod (215) is fixedly connected to the connecting plate (213), two compression springs (214) are movably installed between the connecting plate (213) and the limiting ring (208), one end of the compression spring (214) is connected to the connecting plate (213), and the other end of the compression spring (214) is connected to the limiting ring (208).

3. A smoke suppression flame retardant cable according to claim 2, characterized in that: The cable structure (1) comprises an inner sheath (101), an insulating sheath (102), a conductor installation sheath (103), a movable sheath (106), an elastic strip (107) and an outer sheath (110); an insulating sheath (102) is provided on the inner side of the inner sheath (101); a movable sheath (106) is provided at the center of the insulating sheath (102); six conductor installation sheaths (103) are provided between the inner side of the insulating sheath (102) and the movable sheath (106); an elastic strip (107) is provided inside the movable sheath (106); and an outer sheath (110) is provided on the outer side of the inner sheath (101).

4. The smoke suppression flame retardant cable according to claim 3, characterized in that: The cable structure (1) further comprises a spiral conductor (104), a straight conductor (105), an elastic support strip (108) and a connecting strip (109); a plurality of spiral conductors (104) are arranged inside the conductor installation sleeve (103); a plurality of straight conductors (105) are arranged on the inner side of the spiral conductor (104); an elastic support strip (108) is arranged between each of the conductor installation sleeves (103); and a connecting strip (109) is movably installed inside each of the elastic support strips (108).

5. The smoke suppression and flame retardant cable according to claim 4, characterized in that: The positioning structure (3) comprises a positioning tube (301), a bonding plate (302), a spring groove (303), a positioning buckle (304) and a compression spring (305); the bonding plates (302) are fixedly mounted at both ends of the positioning tube (301); two spring grooves (303) are arranged on the inner side of the positioning tube (301); positioning buckles (304) are slidably mounted inside the spring grooves (303); a compression spring (305) is movably mounted between the positioning buckle (304) and the inside of the spring grooves (303); one end of the compression spring (305) is connected to the inner wall of the spring groove (303); and the other end of the compression spring (305) is connected to the positioning buckle (304).

6. The smoke suppression and flame retardant cable according to claim 5, characterized in that: The interior of the fire extinguishing arc plate (201) is movably penetrated by a gas supply pipe (5), the outer surface of the gas supply pipe (5) close to the fire extinguishing arc plate (201) is provided with a gas filling hole (6), and the outer surface of the gas supply pipe (5) close to the positioning tube (301) is provided with a positioning hole (7).

7. The smoke suppression and flame retardant cable according to claim 6, characterized in that: The surfaces of the laminating plates (302) are all in contact with the surfaces of the fire extinguishing arc sheets (201), and the positioning buckles (304) are all movably inserted into the interior of the positioning holes (7).

8. The smoke suppression and flame retardant cable according to claim 6, characterized in that: The connection ropes (205) are connected to the inside of a mounting ring (204) on the surface of another fire extinguishing arc piece (201) through a rope loop (206); the fire extinguishing arc piece (201) is movably mounted at a position between the outer sheath (110) and the inner sheath (101).

9. The smoke suppression and flame retardant cable according to claim 6, characterized in that: The gaps between the conductor installation sleeve (103) and the elastic support strip (108) are filled with filling material (4).

10. The smoke suppression and flame retardant cable according to claim 6, characterized in that: An arc sleeve is fixedly installed at a position near the gas pipe (5) inside the fire extinguishing arc piece (201), and the gas pipe (5) is movably inserted into the arc sleeve. The gas pipe (5) movably penetrates the interior of the positioning pipe (301).

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