A smoke-suppressing flame-retardant cable

Abstract

The present invention relates to the field of cable technology, specifically to a smoke suppression and flame retardant cable, which solves the problem that smoke suppression and flame retardant cables can only prevent the spread of fire when in use, but do not have the function of extinguishing fire, and the conductor is easily deformed by pressure. The cable structure includes a cable structure, wherein a plurality of flame retardant structures are provided inside the cable structure, and a positioning structure is provided between the plurality of flame retardant structures. The present invention fills the interior of an inert gas chamber with inert gas through a gas pipe and an air filling hole. When a fire occurs, the temperature at the fire source will rise sharply, causing the bimetallic strip to be deformed by heat, causing the bimetallic strip to push upward and push the piston rod outward. At this time, the piston rod will mobilize the connecting plate and the connecting rod to move outward, thereby moving the plug out from the inside of the air outlet. At this time, a gap is generated between the plug and the air outlet, and the inert gas inside the inert gas chamber will be ejected outward to isolate the air at the fire source, thereby achieving fire extinguishing.

Description

Technical Field

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

[0002] A cable is a device for transmitting electrical energy or signals, typically consisting of several conductors or groups of conductors. Flame-retardant cables are designed to prevent the spread of flames within a limited area after the fire source is removed, even when the specimen is burned under specified test conditions. Any residual flames or burns will extinguish themselves within a specified timeframe. Their fundamental characteristic is that they may be damaged and rendered inoperable in a fire, but they can prevent the spread of fire. In simple terms, if a fire occurs in a wire, the burning can be contained within a local area, preventing it from spreading, thus protecting other equipment and preventing further damage.

[0003] Existing smoke-suppressing and flame-retardant cables can usually only prevent the spread of fire when in use, but do not have the function of extinguishing fire, and the conductors are easily deformed under pressure; therefore, they do not meet existing needs. In this regard, 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 flame-retardant cable to solve the problems proposed in the above background technology that the smoke-suppressing flame-retardant cable can usually only prevent the spread of fire when in use, but does not have the function of extinguishing fire, and the conductor is easily compressed and deformed.

[0005] To achieve the above object, the present invention provides the following technical solution: a smoke suppression flame retardant cable, comprising a cable structure, wherein a plurality of flame retardant structures are provided inside the cable structure, and positioning structures are provided between the plurality of flame retardant structures;

[0006] The flame retardant structure includes a fire extinguishing arc plate, a wing plate, a mounting ring, a connecting rope, a rope loop, an inert gas chamber and an air outlet. Six air outlets are provided on the surface of the fire extinguishing arc plate. Three mounting rings are fixedly installed on both sides of the fire extinguishing arc plate. The interior of the mounting ring is movably connected with a connecting rope. Both ends of the connecting rope are provided with a rope loop. Wing plates are fixedly installed on the outer surface of the fire extinguishing arc plate near both sides, and an inert gas chamber is provided inside the fire extinguishing arc plate.

[0007] Preferably, the flame retardant structure also includes a plugging head, a limiting ring, a fixed rod, a fixed block, a piston rod, a bimetallic strip, a connecting plate, a compression spring and a connecting rod. Six fixing rods are fixedly installed inside the fire extinguishing arc piece, the top of the fixing rod is fixedly installed with a fixed block, the inside of the fixed block is slidably installed with a piston rod, a bimetallic strip is movably installed between the piston rod and the inside of the fixed block, and a connecting plate is fixedly installed at the end of the piston rod. A limiting ring is fixedly installed near the air outlet inside the fire extinguishing arc piece, a plugging head is slidably installed inside the air outlet, and a connecting rod is fixedly installed on one side of the plugging head near the inside of the fire extinguishing arc piece, the connecting rod is fixedly connected to the connecting plate, and two compression springs are movably installed between the connecting plate and the limiting ring, one end of the compression spring is connected to the connecting plate, and the other end of the compression spring is connected to the limiting ring.

[0008] Preferably, the cable structure includes an inner sheath, an insulating sheath, a conductor mounting sheath, a movable sheath, an elastic strip and an outer sheath, an insulating sheath is provided on the inner side of the inner sheath, a movable sheath is provided at the center of the insulating sheath, six conductor mounting sheaths are provided between the inner side of the insulating sheath and the movable sheath, an elastic strip is provided inside the movable sheath, and an outer sheath is provided on the outer side of the inner sheath.

[0009] Preferably, the cable structure also includes a spiral conductor, a straight conductor, an elastic support bar and a connecting bar. A plurality of spiral conductors are provided inside the conductor mounting sleeve, and a plurality of straight conductors are provided on the inner side of the spiral conductor. An elastic support bar is provided between each of the conductor mounting sleeves, and a connecting bar is movably installed inside the elastic support bar.

[0010] Preferably, the positioning structure includes a positioning tube, a fitting plate, a spring groove, a positioning buckle and an extrusion spring. Fitting plates are fixedly installed at both ends of the positioning tube. Two spring grooves are provided on the inner side of the positioning tube. Positioning buckles are slidably installed inside the spring grooves. Extrusion springs are movably installed between the positioning buckles and the inside of the spring grooves. One end of the extrusion spring is connected to the inner wall of the spring groove, and the other end of the extrusion spring is connected to the positioning buckle.

[0011] Preferably, a gas pipe is movably passed through the interior of the fire extinguishing arc piece, an outer surface of the gas pipe close to the fire extinguishing arc piece is provided with an inflation hole, and an outer surface of the gas pipe close to the positioning pipe is provided with a positioning hole.

[0012] Preferably, the surfaces of the laminating plates are all in contact with the surfaces of the fire extinguishing arc sheets, and the positioning buckles are all movably inserted into the interior of the positioning holes.

[0013] Preferably, the connecting ropes are connected to the inside of a mounting ring on the surface of another fire extinguishing arc piece through a rope loop, and the fire extinguishing arc piece is movably installed at a position between the outer sheath and the inner sheath.

[0014] Preferably, the gaps between the conductor mounting sleeve and the elastic support strip are filled with filling materials.

[0015] Preferably, an arc-shaped sleeve is fixedly installed at a position near the gas pipe inside the fire extinguishing arc piece, and the gas pipe is movably inserted into the arc-shaped sleeve, and the gas pipe movably passes through the interior of the positioning pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention cooperates with the fire extinguishing arc sheet and the gas pipe, so that when the device is in use, the inert gas can be filled into the interior of the inert gas chamber through the gas pipe and the inflation hole. When a fire occurs, the temperature at the fire source will rise sharply, causing the bimetallic strip to be deformed by heat, causing the bimetallic strip to push upward and push the piston rod outward. At this time, the piston rod will mobilize the connecting plate and the connecting rod to move outward, so that the plugging head is moved out from the inside of the gas outlet. At this time, a gap is generated between the plugging head and the gas outlet, and the inert gas inside the inert gas chamber will be ejected outward to isolate the air at the fire source, thereby extinguishing the fire. After the fire source is extinguished, the temperature drops, the bimetallic strip is no longer deformed by heat and rebounds. At this time, the elastic force of the compression spring will push the connecting plate toward the fixed block, so that the plugging head retracts to the inside of the gas outlet to seal the gas outlet.

[0018] 2. The present invention cooperates with the mounting ring and the connecting rope so that when the device is in use, the connecting rope and the rope loop can pass through the inside of the mounting ring on the surface of the fire extinguishing arc plates on both sides in an S shape, thereby connecting the fire extinguishing arc plates. As a result, the device can adjust the size of the inner side of the fire extinguishing arc plate according to the size of the cable structure, so that the flame retardant structure can be adapted to cable structures of different sizes for installation. At the same time, when the fire source burns to the position of the mounting ring, the connecting rope will be burned off. At this time, the fire extinguishing arc plates will be disconnected and spread outward, so that the fire extinguishing arc plates will be damaged by impact or burning by the fire source, and the inert gas inside will be released, thereby avoiding the temperature sensing failure of the bimetallic strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0020] Figure 2 It is a partial structural diagram of the flame retardant structure of the present invention;

[0021] Figure 3 It is a cross-sectional front view of the position of the positioning tube of the present invention;

[0022] Figure 4 It is a cross-sectional front view of the position of the fire extinguishing arc piece of the present invention;

[0023] Figure 5It is a partial cross-sectional front view of the fire extinguishing arc piece of the present invention;

[0024] Figure 6 For the present invention Figure 3 Schematic diagram of the local structure of part A;

[0025] Figure 7 For the present invention Figure 5 Schematic diagram of the local structure of part B.

[0026] Figure: 1. Cable structure; 101. Inner sheath; 102. Insulating sheath; 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. Fire extinguishing arc piece; 202. Plug; 203. Wing plate; 204. Mounting ring; 205. Connecting rope; 206. Rope loop; 207 , inert gas chamber; 208, limiting ring; 209, fixing rod; 210, fixing 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, bonding plate; 303, spring groove; 304, positioning buckle; 305, extrusion spring; 4, filling material; 5, gas pipe; 6, inflation hole; 7, positioning hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figures 1 to 7 , an embodiment provided by the present invention: a smoke suppression flame retardant cable, comprising a cable structure 1, 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;

[0029] The flame retardant structure 2 includes a fire extinguishing arc plate 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 plate 201. Three mounting rings 204 are fixedly installed on both sides of the fire extinguishing arc plate 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 installed on the outer surface of the fire extinguishing arc plate 201 near both sides, and an inert gas chamber 207 is provided inside the fire extinguishing arc plate 201.

[0030] 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 loop 206 can be passed through the mounting ring 204 on the surface of the fire extinguishing arc plates 201 on both sides in an S shape, thereby connecting the fire extinguishing arc plates 201. In this way, the device can adjust the size of the inner side of the fire extinguishing arc plate 201 according to the size of the cable structure 1, so that the flame retardant structure 2 can be adapted to cable structures 1 of different sizes for installation. At the same time, 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 fire extinguishing arc plates 201 will be disconnected and spread outward, so that the fire extinguishing arc plates 201 are hit or burned by the fire source and damaged, so that the internal inert gas is released, thereby avoiding the temperature sensing failure of the bimetallic strip 212.

[0031] The flame retardant structure 2 also includes a plug head 202, a limiting ring 208, a fixed rod 209, a fixed block 210, a piston rod 211, a bimetallic strip 212, a connecting plate 213, a compression spring 214 and a connecting rod 215. Six fixed rods 209 are fixedly installed inside the fire extinguishing arc piece 201, and the top of the fixed rod 209 is fixedly installed with a fixed block 210. The inside of the fixed block 210 is slidably installed with a piston rod 211. A bimetallic strip 212 is movably installed between the piston rod 211 and the inside of the fixed block 210. The end of the piston rod 211 is fixedly installed. There is a connecting plate 213, and a limiting ring 208 is fixedly installed inside the fire extinguishing arc piece 201 near the air outlet 216. A plugging head 202 is slidably installed inside the air outlet 216. A connecting rod 215 is fixedly installed on the side of the plugging head 202 near the inside of the fire extinguishing arc piece 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.

[0032] By cooperating with the fire extinguishing arc piece 201 and the gas pipe 5, the device can be used to fill the inert gas chamber 207 with inert gas through the gas pipe 5 and the gas filling hole 6. When a fire occurs, the temperature at the fire source will rise sharply, causing the bimetallic strip 212 to deform due to heat, causing the bimetallic strip 212 to push upward and push the piston rod 211 outward. At this time, the piston rod 211 will mobilize the connecting plate 213 and the connecting rod 215 to move outward, so that the plug 202 is ejected from the inner side of the gas outlet 216. When the fire source is extinguished, the temperature drops, and the bimetallic strip 212 is no longer deformed by heat and rebounds. At this time, the elastic force of the compression spring 214 pushes the connecting plate 213 toward the fixed block 210, thereby retracting the plugging head 202 to the inside of the air outlet 216 to seal the air outlet 216.

[0033] The cable structure 1 includes an inner sheath 101, an insulating sheath 102, a conductor mounting sheath 103, a movable sheath 106, an elastic strip 107 and an outer sheath 110. The inner side of the inner sheath 101 is provided with an insulating sheath 102, a movable sheath 106 is provided in the center of the insulating sheath 102, six conductor mounting 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.

[0034] The cable structure 1 also includes a spiral conductor 104, a straight conductor 105, an elastic support bar 108 and a connecting bar 109. A plurality of spiral conductors 104 are provided inside the conductor mounting sleeve 103, and a plurality of straight conductors 105 are provided on the inner side of the spiral conductor 104. An elastic support bar 108 is provided between each conductor mounting sleeve 103, and a connecting bar 109 is movably installed inside the elastic support bar 108.

[0035] The positioning structure 3 includes a positioning tube 301, a fitting plate 302, a spring groove 303, a positioning buckle 304 and an extrusion spring 305. The fitting plates 302 are fixedly installed at both ends of the positioning tube 301. Two spring grooves 303 are provided on the inner side of the positioning tube 301. Positioning buckles 304 are slidably installed inside the spring grooves 303. Extrusion springs 305 are movably installed between the positioning buckles 304 and the inside of the spring grooves 303. One end of the extrusion spring 305 is connected to the inner wall of the spring groove 303, and the other end of the extrusion spring 305 is connected to the positioning buckle 304.

[0036] Through the cooperation of the positioning buckle 304 and the extrusion spring 305, when the device is installing the flame retardant structure 2, the positioning tube 301 can be passed through the surface of the gas pipe 5. At this time, the positioning buckle 304 will be affected by the elasticity of the extrusion spring 305 and stuck into the inside of the positioning hole 7 on the surface of the gas pipe 5, thereby fixing the positioning tube 301. At this time, the fire extinguishing arc plate 201 is installed on the outside of the bonding plate 302, so that the bonding plate 302 positions the fire extinguishing arc plate 201, and 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 separated and arranged on the surface of the gas pipe 5, thereby positioning the fire extinguishing arc plate 201, avoiding the situation where the inflation hole 6 is not set inside the inert gas cavity 207.

[0037] The fire extinguishing arc piece 201 is provided with a gas pipe 5 that is movable through the inside. The outer surface of the gas pipe 5 close to the fire extinguishing arc piece 201 is provided with a gas filling hole 6. The outer surface of the gas pipe 5 close to the positioning tube 301 is provided with a positioning hole 7.

[0038] 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 .

[0039] The connecting ropes 205 are connected to the inside of the mounting ring 204 on the surface of another fire extinguishing arc piece 201 through the rope loop 206 . The fire extinguishing arc piece 201 is movably mounted between the outer sheath 110 and the inner sheath 101 .

[0040] The gaps between the conductor installation sleeve 103 and the elastic support strip 108 are filled with filling material 4 .

[0041] An arc-shaped 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-shaped sleeve, and the gas pipe 5 movably passes through the interior of the positioning tube 301 .

[0042] When the smoke suppression and flame retardant cable is in use, the inert gas can be filled into the inert gas chamber 207 through the gas pipe 5 and the inflation hole 6. When a fire occurs, the temperature at the fire source will rise sharply, causing the bimetallic strip 212 to be deformed by the heat, pushing the bimetallic strip 212 upward and pushing the piston rod 211 outward. At this time, the piston rod 211 will mobilize the connecting plate 213 and the connecting rod 215 to move outward, so that the plugging head 202 is moved out from the inside of the air outlet 216. At this time, a gap is generated between the plugging head 202 and the air outlet 216, and the inert gas inside the inert gas chamber 207 will be ejected outward to isolate the air at the fire source and extinguish the fire. When the fire source is extinguished, the temperature drops, the bimetallic strip 212 is no longer deformed by the heat and rebounds. At this time, the elastic force of the compression spring 214 will push the connecting plate 213 toward the fixed block 210, so that the plugging head 202 retracts to the inside of the air outlet 216 to seal the air outlet 216.

[0043] The fire extinguishing arc pieces 201 can be connected by passing the connecting rope 205 and the rope sleeve 206 in an S shape through the inside of the mounting ring 204 on the surface of the fire extinguishing arc pieces 201 on both sides, so that the fire extinguishing arc pieces 201 can be connected, so that the device can adjust the size of the inner side of the fire extinguishing arc piece 201 according to the size of the cable structure 1, so that the flame retardant structure 2 can be adapted to the cable structures 1 of different sizes for installation. At the same time, when the fire source burns to the position of the mounting ring 204, the connecting rope 205 will be burned, and the fire extinguishing arc pieces 201 will be disconnected and spread outward, so that the fire extinguishing arc piece 201 is damaged by impact or burning by the fire source, and the inert gas inside is released, thereby avoiding the temperature sensing failure of the bimetallic piece 212

[0044] When the device is installing the flame retardant structure 2, the positioning tube 301 can be passed through the surface of the gas pipe 5. At this time, the positioning buckle 304 will be squeezed by the elasticity of the spring 305 and stuck into the inside of the positioning hole 7 on the surface of the gas pipe 5, thereby fixing the positioning tube 301. At this time, the fire extinguishing arc piece 201 is installed on the outside of the bonding plate 302, so that the bonding plate 302 positions the fire extinguishing arc piece 201. Repeat the installation of the remaining positioning tubes 301 and the fire extinguishing arc piece 201, so that the fire extinguishing arc piece 201 and the positioning tube 301 are separated and arranged on the surface of the gas pipe 5, thereby positioning the fire extinguishing arc piece 201, avoiding the situation where the inflation hole 6 is not set inside the inert gas cavity 207

[0045] Furthermore, the conductor mounting sleeve 103 is fixedly supported by the elastic support strips 108 and the connecting strips 109 , so that when the device is in use, the conductor mounting sleeve 103 can be prevented from being deformed by pressure, which may cause deformation and damage to the internal spiral conductor 104 and linear conductor 105 .

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A smoke suppression 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 piece (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 piece (201); three mounting rings (204) are fixedly mounted on both sides of the fire extinguishing arc piece (201); the interior of the mounting rings (204) is movably connected to 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 both sides of the outer surface of the fire extinguishing arc piece (201); and the interior of the fire extinguishing arc piece (201) is provided with an inert gas chamber (207); The positioning structure (3) comprises a positioning tube (301), a fitting plate (302), a spring groove (303), a positioning buckle (304) and an extrusion spring (305), wherein the fitting plates (302) are fixedly mounted on both ends of the positioning tube (301), two spring grooves (303) are provided on the inner side of the positioning tube (301), positioning buckles (304) are slidably mounted inside the spring grooves (303), and an extrusion spring (305) is movably mounted between the positioning buckle (304) and the inside of the spring grooves (303), one end of the extrusion spring (305) is connected to the inner wall of the spring groove (303), and the other end of the extrusion spring (305) is connected to the positioning buckle (304); The interior of the fire extinguishing arc piece (201) is provided with a gas pipe (5) that is movable and penetrates therethrough. The outer surface of the gas pipe (5) close to the fire extinguishing arc piece (201) is provided with an inflation hole (6). The outer surface of the gas pipe (5) close to the positioning tube (301) is provided with a positioning hole (7).

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 plate (201); a fixing block (210) is fixedly installed at the top end 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 fixing block (210); and the end of each piston rod (211) is fixedly installed. A connecting plate (213) is provided, a limiting ring (208) is fixedly installed at a position near the air outlet (216) inside the fire extinguishing arc piece (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 piece (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. The 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), wherein the inner side of the inner sheath (101) is provided with an insulating sheath (102), the center of the inner side of the insulating sheath (102) is provided with a movable sheath (106), six conductor installation sheaths (103) are provided between the inner side of the insulating sheath (102) and the movable sheath (106), the interior of the movable sheath (106) is provided with an elastic strip (107), and the outer side of the inner sheath (101) is provided with an outer sheath (110).

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 bar (108) and a connecting bar (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 bar (108) is provided between each of the conductor mounting sleeves (103); and a connecting bar (109) is movably installed inside each of the elastic support bars (108).

5. The smoke suppression flame retardant cable according to claim 1, 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).

6. The smoke-suppression flame-retardant cable according to claim 1, characterized in that: The connecting 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), and the fire extinguishing arc piece (201) is movably mounted at a position between the outer sheath (110) and the inner sheath (101).

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

8. The smoke-suppression flame-retardant cable according to claim 1, characterized in that: An arc-shaped 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 interior of the arc-shaped sleeve. The gas pipe (5) movably passes through the interior of the positioning pipe (301).

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