Special-shaped flame-retardant low-voltage power cable

Abstract

The invention discloses a special-shaped flame-retardant low-voltage power cable, and relates to the technical field of special-shaped cables, the outer side end of a fixed wire core is sleeved with an inner flexible insulating sleeve, the inner side of the inner flexible insulating sleeve is provided with a fixed reinforcing rib, the outer side end of the inner flexible insulating sleeve is fixedly provided with fixed shielding strips, and the outer side ends of the plurality of fixed shielding strips are sleeved with an integrated supporting sleeve. According to the device, the problem that in the prior art, due to the fact that multiple sets of cables are squeezed and compacted, the cross section size of the cable cannot be adjusted is effectively solved, the adaptability of cable laying and using is improved, and the service life of the cable is prolonged. Meanwhile, the heat dissipation and heating area is changed through internal elastic deformation of the cable, the situation that the heat dissipation efficiency is reduced due to the fact that internal and external heat exchange positions are separated due to the fact that the shape of the cable is changed is avoided, and the operation stability of the cable and the application range of the cable are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of special-shaped cables, in particular to a special-shaped flame-retardant low-voltage power cable. Background Art

[0002] Special-shaped low-voltage power cables are cables used to transmit electric energy. They are different from standard low-voltage power cables in appearance, structure or materials. They are usually composed of different conductor materials, insulation materials and sheath materials to meet specific use environments and performance requirements. Special-shaped low-voltage power cables are usually used in special environments, space restrictions, special loads and other environments. The shapes of special-shaped low-voltage cables include flat, fan-shaped and other shapes.

[0003] However, during the laying process of flat cables, the cores inside the cables are squeezed too tightly, and the multiple groups of cores cannot be deformed, so that the internal space and the cable cross-section cannot be changed significantly. As a result, when exploring inside the mine, the shape of the cable cannot be adjusted according to the actual terrain environment. At the same time, after the cable is squeezed, the internal components will be damaged and the heat dissipation efficiency will be reduced, which greatly affects the normal laying and use of the cable. Summary of the invention

[0004] The present invention provides a special-shaped flame-retardant low-voltage power cable, which can effectively solve the problem raised in the above-mentioned background technology that during the laying process of the existing flat cable, due to the excessive tightness between the wire cores inside the cable, the deformation treatment cannot be performed between the multiple groups of wire cores, so that the internal space and the cable cross-section cannot be changed significantly, resulting in the inability to adjust the shape of the cable according to the actual terrain environment when exploring the inside of the mine. At the same time, after the cable is squeezed, the internal components will be damaged and the heat dissipation efficiency will be reduced, which greatly affects the normal laying and use of the cable.

[0005] To achieve the above object, the present invention provides the following technical solution: a special-shaped flame-retardant low-voltage power cable, comprising a fixed core, wherein a side end of the fixed core is provided with an elastic deformation component; The elastic deformation component includes an inner flexible insulating sleeve; The outer end of the fixed wire core is sleeved with an inner flexible insulating sleeve, and a number of fixed reinforcing ribs are equidistantly embedded and installed on the inner side of the inner flexible insulating sleeve. A number of fixed shielding strips are equidistantly fixed to the outer end of the inner flexible insulating sleeve, and an integrated support sleeve is sleeved on the outer ends of a plurality of the fixed shielding strips, and an internal pressure support strip is arranged between two of the integrated support sleeves, and a number of pressure-stabilizing telescopic cavities are equidistantly opened on the inner side of the internal pressure support strip, and a number of inner hole clamping blocks are equidistantly welded to the side end of the integrated support sleeve and both ends of the internal pressure support strip, and an integrated support column is sleeved between the plurality of the inner hole clamping blocks; The outer ends of the integrated support sleeve and the internal pressure support strip are sleeved with a flame-retardant isolation belt, the side ends of the flame-retardant isolation belt are bonded with a Z-shaped clamping plate, the outer ends of the flame-retardant isolation belt are bonded with a special-shaped sliding strip at the position corresponding to the internal pressure support strip, and the outer ends of the multiple Z-shaped clamping plates and special-shaped sliding strips are paved with heat-absorbing protection belts, the outer ends of the heat-absorbing protection belts are fixedly connected with a heat-insulating sleeve plate, and one side of the side end of the heat-insulating sleeve plate is sleeved with a stab-proof reinforcement plate; The side end of the stab-proof reinforcement plate is sleeved with an elastic heat-absorbing frame, and the outer end of the elastic heat-absorbing frame is symmetrically clamped with a plurality of outer row integration strips, and the inner side of the outer row integration strip is equidistantly provided with a plurality of deformation matching cavities, the outer end of the flame-retardant isolation belt and the inner end of the heat-absorbing protection belt are both bonded with extrusion heat-resistant pads, and the outer ends of the elastic heat-absorbing frame and the outer row integration strips are fixedly sleeved with an outer insulating sleeve.

[0006] According to the above technical solution, protective extrusion plates are bonded to the two ends of the inner side of the outer insulating sleeve, a number of embedded snap-fit ​​grooves are equidistantly opened at the outer end of the outer insulating sleeve, an inward reinforcing strip is embedded and installed inside the embedded snap-fit ​​groove, and a number of elastic extrusion cavities are equidistantly opened inside the protective extrusion plate.

[0007] According to the above technical solution, there are four fixed wire cores, and two adjacent inner hole clamping blocks are rotated and fitted together. The longitudinal sections of the fixed shielding strip, Z-shaped clamping plate, embedded clamping groove and recessed reinforcement strip are all arc-shaped, and there are three internal pressure support strips.

[0008] According to the above technical solution, the two special-shaped sliding strips are slidably fitted with each other, and the side ends of the special-shaped sliding strips are fitted with the side ends of the extruded heat-resistant pads.

[0009] According to the above technical solution, the outer end of the elastic heat absorbing frame is fitted with the inner end of the heat absorbing protection belt, and the outer end of the stab-proof reinforcement plate is bonded to the side end of the outer row integration strip.

[0010] According to the above technical solution, the inner end of the protective extrusion plate is fitted with the outer end of the heat-absorbing protective belt, and one end of the protective extrusion plate is bonded and combined with one end of the anti-stab reinforcement plate.

[0011] According to the above technical solution, a press-fit protection component is provided at the side end of the outer insulating sleeve; The pressed protection assembly includes a pressed support strip; A plurality of pressed support strips are equidistantly embedded and installed at the side end of the outer insulating sleeve corresponding to the embedded snap-fit ​​groove position, a pressed support plate is fixed at one end of the plurality of pressed support strips, a buckle binding belt is bonded to the outer end of the pressed support plate, a plurality of side clamping limit blocks are equidistantly bonded to the inner end of the buckle binding belt, and an inner adhesive hard strip is fixedly connected to one end of the plurality of side clamping limit blocks corresponding to the position of the outer insulating sleeve; A number of arc-surface extrusion blocks are equidistantly installed at the side end of the outer insulating sleeve corresponding to the embedded snap-fit ​​groove position, and plastic tapes are fixed to the outer ends of the plurality of arc-surface extrusion blocks, and a double-convex buckle is symmetrically welded on the top end of one of the arc-surface extrusion blocks, a suture adhesive tape is bonded to the bottom end of the arc-surface extrusion block located at the double-convex buckle position, an integrated buckle is welded to the middle of the top end of the arc-surface extrusion block located at the double-convex buckle position, an integrated wide-surface belt is sleeved on the side end of the integrated buckle, and an adhesive pressing strip is welded on the inner end of the plastic tape corresponding to the position of the outer insulating sleeve.

[0012] According to the above technical solution, the side end of the pressed support plate is fitted with the side end of the outer insulating sleeve, the longitudinal section of the inner adhesive hard strip is arc-shaped, and the outer end of the pressed support strip is fitted with the inner end of the buckle binding belt.

[0013] According to the above technical solution, the plastic cassette is sleeved and connected with the double-convex buckle, and there are two buckle binding belts and two plastic cassettes.

[0014] According to the above technical solution, the inner end of the integrated wide surface belt is fitted with the outer end of the glued pressed strip, and the glued pressed strip is bonded and connected to the outer insulating sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects: An elastic deformation component is provided, and the inner flexible insulating sleeve cooperates with the fixed reinforcing ribs, so that when the cable is bent and twisted, it can effectively cooperate to perform a small range of deformation, and at the same time, its bending amplitude can be limited to avoid bending and damage of internal components due to too small an angle. The integrated support sleeve, the internal pressure support strip, the inner hole clamping block and the integrated support column rotate with each other to achieve an arc-shaped cross-sectional change between the two groups of wire cores, and cooperate with the voltage-stabilizing telescopic cavity, the outer row of integrated strips, the deformation matching cavity, the protective extrusion plate and the elastic extrusion cavity to achieve internal multi-segment extrusion, and separate multiple groups of cables so that they will not interfere with each other. The elastic reciprocating treatment of the isolation position is used to achieve shrinkage deformation treatment, and the overall wire core will not be damaged, thereby improving the cable's adaptability to terrain; Through the cooperation of Z-shaped card plate and special-shaped sliding strip sliding support, the inside and outside are isolated and combined, and the heat absorption protection belt is used to isolate and fit the inside. Through the mutual linkage between multiple groups, the tightness of the internal fit is guaranteed, and the elastic heat absorption frame and the outer row integration strip are used for heat absorption integration treatment, so as to cooperate with heat exchange and improve the heat dissipation speed. In addition, during extrusion, the cavity can be squeezed and the components can be elastically stretched to ensure its stable heat exchange area, avoiding the situation of reduced internal heat dissipation efficiency. In addition, the flame-retardant isolation belt, puncture-proof reinforcement plate, extrusion heat-resistant pad and heat absorption protection belt are used to cooperate with each other to improve the flame retardancy and internal protection effect of the cable; By strengthening the side end support of the wire core, rotating linkage between the wire cores, internal extrusion transposition and elastic support adjustment, and connecting and cooperating with multiple groups of components, the problem in the prior art that the cross-sectional size of the cable cannot be adjusted due to tight squeezing between multiple groups of cables is effectively solved, thereby improving the adaptability of cable laying and use. At the same time, the elastic deformation inside the cable changes the heat dissipation and heat-receiving area, avoiding the separation of the internal and external heat exchange positions due to changes in the shape of the cable, thereby avoiding the reduction of heat dissipation efficiency due to the change in the shape of the cable, effectively improving the stability of cable operation and the scope of use of the cable.

[0016] 2. A pressing protection component is provided, and a plastic tape with an arc extrusion block is sleeved onto the outer end of the cable, and the arc extrusion block is pressed onto the side end of the insulation layer, and the sewing adhesive tape is combined with the outer insulation sleeve, and the outer insulation sleeve is limited and extruded by the adhesive pressing strip, and multiple groups of arc extrusion blocks are cooperated to perform multi-sided extrusion and limitation, and the double convex buckle is sleeved with the plastic tape, and the cable is limited and extruded by pulling the plastic tape and the double convex buckle, and the cable is rotated and squeezed inwardly by cooperating with the elastic components of the cable, and the integrated wide belt is sleeved onto the inside of the integrated buckle, and the adhesive pressing strip and the arc extrusion block are squeezed and limited, so that they can be clamped and limited at multiple positions to ensure their stability after deformation, and at the same time, the components are used to isolate the cable from the outside, reduce the occurrence of overall wear caused by alignment and lamination, and improve the safety of cable operation and protection; The pressed support strip is embedded into the inner side of the embedded snap-fit ​​groove, and the pressed support plate is attached to the side end of the outer insulating sleeve. The pressed support strip is used to limit the extrusion of the cable, and the buckle binding belt, side clamping block and inner adhesive hard strip are used to limit the whole to ensure the stability of the overall limit fixation and limit clamping, realize the change of the cable cross-section, and facilitate passing through a smaller space, so that it is easy to adapt to different environments.

[0017] To summarize, by the cooperation of the elastic deformation component and the press-fit protection component, the cable deformation is achieved by utilizing the internal extrusion deformation and rotational deformation of the cable in cooperation with the external limiting components, and the outside of the cable is limited and protected, thereby improving the cable deformation fixation effect and the cable protection effect, and the stability of the cable operation and use is guaranteed by the cooperation of multiple components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture: Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a schematic structural diagram of the elastic deformation component of the present invention; Figure 3 It is a schematic diagram of the installation structure of the fixed reinforcing rib of the present invention; Figure 4 It is a schematic diagram of the installation structure of the fixed shielding strip of the present invention; Figure 5 It is a schematic diagram of the installation structure of the special-shaped sliding strip of the present invention; Figure 6 It is a schematic structural diagram of the press-fit protection assembly of the present invention; Figure 7 It is a schematic diagram of the installation structure of the pressed support strip of the present invention; Figure 8 It is a schematic diagram of the installation structure of the suture adhesive tape of the present invention; Numbers in the figure: 1, fixed wire core; 2. Elastic deformation component; 201. Inner flexible insulating sleeve; 202. Fixed reinforcing ribs; 203. Fixed shielding strip; 204. Integrated support sleeve; 205. Internal pressure support strip; 206. Voltage-stabilizing telescopic cavity; 207. Inner hole snap-in block; 208. Integrated support column; 209. Flame-retardant isolation belt; 210. Z-shaped snap-in plate; 211. Special-shaped sliding strip; 212. Heat-absorbing protective belt; 213. Heat-insulating sleeve plate; 214. Anti-puncture reinforcement plate; 215. Elastic heat-absorbing frame; 216. Outer row integration strip; 217. Deformation matching cavity; 218. Extruded heat-resistant pad; 219. Outer insulating sleeve; 220. Protective extrusion plate; 221. Embedded snap-in groove; 222. Inner recessed reinforcement strip; 223. Elastic extrusion cavity; 3. Pressed protection assembly; 301. Pressed support strip; 302. Pressed support plate; 303. Buckle binding strip; 304. Side clamp limit block; 305. Inner adhesive hard strip; 306. Arc extrusion block; 307. Plastic tape; 308. Double convex buckle; 309. Suture adhesive tape; 310. Integrated buckle; 311. Integrated wide tape; 312. Glued pressing strip. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1-8 As shown, the present invention provides a technical solution, a special-shaped flame-retardant low-voltage power cable, comprising a fixed core 1, four fixed cores 1, to achieve stable wiring and power supply, and an elastic deformation component 2 is provided at the side end of the fixed core 1; The elastic deformation component 2 includes an inner flexible insulating sleeve 201, a fixed reinforcing rib 202, a fixed shielding strip 203, an integrated support sleeve 204, an internal pressure support strip 205, a voltage-stabilizing telescopic cavity 206, an inner hole snap-fit ​​block 207, an integrated support column 208, a flame-retardant isolation belt 209, a Z-shaped snap-fit ​​plate 210, a special-shaped sliding strip 211, a heat-absorbing protective belt 212, a heat-insulating sleeve plate 213, a puncture-proof reinforcing plate 214, an elastic heat-absorbing frame 215, an outer row of integrated strips 216, a deformation matching cavity 217, an extruded heat-resistant pad 218, an outer insulating sleeve 219, a protective extrusion plate 220, an embedded snap-fit ​​groove 221, an inner recessed reinforcing strip 222 and an elastic extrusion cavity 223; The outer end of the fixed wire core 1 is sleeved with an inner flexible insulating sleeve 201, and a number of fixed reinforcing ribs 202 are equidistantly embedded and installed on the inner side of the inner flexible insulating sleeve 201. A number of fixed shielding strips 203 are equidistantly fixed on the outer end of the inner flexible insulating sleeve 201, and an integrated support sleeve 204 is sleeved on the outer ends of the multiple fixed shielding strips 203. An internal pressure support strip 205 is arranged between the two integrated support sleeves 204. There are three internal pressure support strips 205 to ensure the stability of the internal support pressing. A number of pressure-stabilizing telescopic cavities 206 are equidistantly opened on the inner side of the internal pressure support strip 205. A number of inner hole clamping blocks 207 are equidistantly welded on the side ends of the integrated support sleeve 204 and the two ends of the internal pressure support strip 205. Two adjacent inner hole clamping blocks 207 are rotated and fitted to achieve steady alignment and ensure the stability of the overall connection. An integrated support column 208 is sleeved between the multiple inner hole clamping blocks 207; The outer ends of the integrated support sleeve 204 and the internal pressure support strip 205 are sleeved with a flame retardant isolation belt 209, and the side ends of the flame retardant isolation belt 209 are bonded with a Z-shaped clamping plate 210. The outer end of the flame retardant isolation belt 209 is bonded with a special-shaped sliding strip 211 at the position corresponding to the internal pressure support strip 205. The two special-shaped sliding strips 211 slide and fit each other, and the side ends of the special-shaped sliding strips 211 fit with the side ends of the extrusion heat-resistant pads 218 to achieve counter-position support and counter-position telescopic expansion, ensuring that the internal seal can be compressed while the interior is ensured. The outer ends of the multiple Z-shaped clamping plates 210 and the special-shaped sliding strips 211 are paved with heat-absorbing protective belts 212, and the outer ends of the heat-absorbing protective belts 212 are fixedly connected with a heat-insulating sleeve plate 213, and one side of the side end of the heat-insulating sleeve plate 213 is sleeved with a puncture-proof reinforcement plate 214; The side end of the stab-proof reinforcement plate 214 is sleeved with an elastic heat-absorbing frame 215, and the outer end of the elastic heat-absorbing frame 215 is symmetrically clamped with a plurality of outer row integration strips 216, and the inner side of the outer row integration strips 216 is equidistantly provided with a plurality of deformation matching cavities 217, and the outer end of the flame-retardant isolation belt 209 and the inner end of the heat-absorbing protection belt 212 are both bonded with an extrusion heat-resistant pad 218, and the outer ends of the elastic heat-absorbing frame 215 and the outer row integration strips 216 are fixedly sleeved with an outer insulating sleeve 219; The two ends of the inner side of the outer insulating sleeve 219 are bonded with protective extrusion plates 220, the outer end of the elastic heat absorbing frame 215 is fitted with the inner end of the heat absorbing protection belt 212, the outer end of the stab-proof reinforcement plate 214 is bonded and connected with the side end of the outer row integration strip 216, the inner end of the protective extrusion plate 220 is fitted with the outer end of the heat absorbing protection belt 212, and one end of the protective extrusion plate 220 is bonded and combined with one end of the stab-proof reinforcement plate 214, and accurate linkage is achieved through alignment and alignment support, thereby improving the overall In order to ensure the tightness of the body, a number of embedded snap-fit ​​grooves 221 are equidistantly provided at the outer end of the outer insulating sleeve 219, and an inwardly recessed reinforcing strip 222 is embedded and installed on the inner side of the embedded snap-fit ​​groove 221. The longitudinal sections of the fixed shielding strip 203, the Z-shaped positioning plate 210, the embedded snap-fit ​​groove 221 and the inwardly recessed reinforcing strip 222 are all arc-shaped, so that they can cooperate steadily during the pressing process to ensure the tightness of the inside and outside. A number of elastic extrusion cavities 223 are equidistantly provided on the inner side of the protective extrusion plate 220.

[0022] A press-fit protection component 3 is provided at the side end of the outer insulating sleeve 219; The pressing protection assembly 3 includes a pressing support strip 301, a pressing support plate 302, a buckle binding strip 303, a side clamping limit block 304, an inner adhesive hard strip 305, a curved surface extrusion block 306, a plastic card strip 307, a double convex buckle 308, a suture adhesive tape 309, an integrated buckle 310, an integrated wide surface strip 311 and a glued pressing strip 312; A plurality of pressed support strips 301 are equidistantly embedded and installed at the position of the embedded snap-fit ​​groove 221 corresponding to the side end of the outer insulating sleeve 219, a pressed support plate 302 is fixed at one end of the plurality of pressed support strips 301, a buckle binding belt 303 is bonded to the outer end of the pressed support plate 302, a plurality of side clamping limit blocks 304 are equidistantly bonded to the inner end of the buckle binding belt 303, an inner end of the buckle binding belt 303 is fixedly connected with an inner adhesive hard strip 305 at one end of the plurality of side clamping limit blocks 304 corresponding to the position of the outer insulating sleeve 219, the side end of the pressed support plate 302 is fitted with the side end of the outer insulating sleeve 219, the longitudinal section of the inner adhesive hard strip 305 is arc-shaped, the outer end of the pressed support strip 301 is fitted with the inner end of the buckle binding belt 303, so as to ensure the stability of pressed alignment and pressed support and avoid the occurrence of pressed separation; A plurality of arc-surface extrusion blocks 306 are equidistantly installed at the side end of the outer insulating sleeve 219 corresponding to the embedded snap-fit ​​groove 221. Plastic cassettes 307 are fixed to the outer ends of the plurality of arc-surface extrusion blocks 306. A double-convex buckle 308 is symmetrically welded to the top of one of the arc-surface extrusion blocks 306. The plastic cassette 307 is sleeved and connected with the double-convex buckle 308. There are two buckle binding belts 303 and two plastic cassettes 307, which realize accurate alignment support and alignment restriction, ensure the stability of the overall limit combination, and the arc-surface extrusion block 306 at the position of the double-convex buckle 308 is fixed to the outer ends of the arc-surface extrusion blocks 306. A sewing adhesive tape 309 is bonded to the bottom end of the pressing block 306, an integrated buckle 310 is welded to the middle part of the top end of the arc extrusion block 306 located at the position of the double convex buckle 308, an integrated wide belt 311 is sleeved on the side end of the integrated buckle 310, and a glued pressing strip 312 is welded at the inner end of the plastic tape 307 corresponding to the position of the outer insulating sleeve 219, the inner end of the integrated wide belt 311 is sleeved on the outer end of the glued pressing strip 312, and the glued pressing strip 312 is bonded to the outer insulating sleeve 219 to improve the stability of the extrusion alignment and the fitting alignment.

[0023] The working principle and use process of the present invention are as follows: during cable construction, the staff will lay the cable to the working area. During the laying process, when the cable encounters a special-shaped hole or terrain and needs to be sleeved and snapped into the inside of the hole, according to the direction of cable rotation and integration, the inner reinforcing strip 222 is cut and peeled off from the embedded snap-fit ​​groove 221 by using a cutting device, and the outer insulating sleeve 219 is embedded in the snap-fit ​​groove 221 at the position of the cutting device. The outer insulating sleeve 219 is partially cut and peeled off at the position of the embedded snap-fit ​​groove 221, and the outer row of integration strips 216 is cut at the same time. At this time, the plastic cassette 307 with the arc extrusion block 306 is sleeved on the cutting position of the outer end of the cable, and the staff uses the clamping device to push the cables on both sides to extrude and rotate toward the middle. During the extrusion process, the integrated support sleeve 204 passes through the inner hole snap-fit ​​block 20 7 and the integrated support column 208 rotate along the internal pressure support bar 205 and the inner hole clamping block 207. At the same time, the internal pressure support bar 205, the outer row of integrated bars 216 and the outer insulating sleeve 219 are squeezed toward the middle at the same time, so that the internal size can be effectively changed without affecting the internal fixed core 1. When the cable cross section changes, the internal integrated support sleeve 204, the internal pressure support bar 205, the voltage-stabilizing telescopic cavity 206, the inner hole clamping block 207, and the integrated support column 208 rotate in coordination with each other. Through the rotation of the two inner hole clamping blocks 207, and the limited sleeve cooperation of the integrated support column 208, the integrated support sleeve 204 and the internal pressure support bar 205 are driven to rotate and exchange positions with each other, and cooperate and link according to the pressing situation, and the maximum deformation angle can be limited to avoid excessive rotation and pressing, thereby improving the internal protection effect; After extrusion and shaping, the outer insulating sleeve 219 and the arc-surface extrusion block 306 are heated and pressed together by an electric heating device. When the gap is large, a layer of suture adhesive tape 309 can be firstly adhered to the surface of the arc-surface extrusion block 306, and the suture adhesive tape 309 is used to bond and combine with the outer insulating sleeve 219, and at the same time, the glue pressing strip 312 is adhered to the arc surface of the side end of the outer insulating sleeve 219, and the uncut side is extruded and fitted by the arc-surface extrusion block 306 at the same time, and the double convex buckle 308 is fitted with the plastic cassette 307, and the plastic cassette 307 and the double convex buckle 308 are pulled, and the limit fit is used. The cable is limited and squeezed, and the integrated wide belt 311 is fitted to the inside of the integrated buckle 310, and the integrated wide belt 311 is used to limit the edges of the glued pressing strip 312 and the arc-surface extrusion block 306 to prevent them from bulging and detaching, further ensuring that they are steadily limited when embedded and fitted into the hole, and the arc-surface extrusion block 306, plastic card belt 307, integrated wide belt 311 and glued pressing strip 312 are used to isolate and protect the extrusion and the fitting position with the hole, reduce the occurrence of overall wear caused by alignment and fitting, and improve the safety of cable operation and protection; When it is necessary to pass through a space with a cross-section slightly smaller than that of the cable, the staff takes out the indented reinforcement strip 222 from the embedded snap-fit ​​groove 221, and squeezes the cable from the outside to the inside through the squeezing equipment or the terrain itself. When squeezing inward, the elastic squeezing cavity 223 in the protective squeezing plate 220 is squeezed, the deformation matching cavity 217 in the outer row integration strip 216 is squeezed, and the pressure-stabilizing telescopic cavity 206 at the position of the internal pressure support strip 205 is squeezed at the same time, so that the cable can collapse from the outside to the inside. At this time, the embedded snap-fit ​​grooves 221 at the position of the outer insulating sleeve 219 can be pressed inwardly, so that when it is necessary to pass through a smaller space, it can be operated steadily, which is convenient for the staff to operate and reduces the difficulty and tediousness of the operation; When it is necessary to place it in a slightly smaller space, the pressing support bar 301 is embedded into the inner side of the embedding clamping groove 221, and the pressing support plate 302 is attached to the side end of the outer insulating sleeve 219, and the pressing support bar 301 is used to limit the extrusion of the cable, and the buckle binding belt 303, the side clamping block 304 and the inner adhesive hard strip 305 are used to limit the whole, so as to ensure the stability of the overall limit fixation and limit clamping, realize the extrusion and reduction of the cable, and facilitate passing through a smaller space, so as to be suitable for different environments; When the cable is running, the fixed core 1 generates heat when transporting electricity. The heat is transferred outward along the inner flexible insulating sleeve 201, the fixed shielding strip 203, the integrated support sleeve 204, the internal pressure support strip 205 and the flame retardant isolation belt 209, and is led outward through the Z-shaped clamping plate 210, the special-shaped sliding strip 211, the heat absorption protection strip 212 and the elastic heat absorption frame 215. The heat dissipation area is increased by the elastic heat absorption frame 215, the outer row of integrated strips 216 and the outer insulating sleeve 219, and the internal heat dissipation speed is increased, thereby ensuring the steady operation of the fixed core 1 inside the cable. The bending angle of the cable is limited by the fixed reinforcing ribs 202 to avoid excessive bending during the winding and laying process, which may cause the internal components to be squeezed and damaged and the internal insulation to be destroyed. The cable is isolated from external interference factors by fixing the shielding strip 203, Rongguang's multiple groups of Z-shaped clamping plates 210 and special-shaped sliding strips 211 are squeezed and fitted against each other, and the extrusion heat-resistant pads 218 are used to intercept, limit and elastically protect the side ends of the special-shaped sliding strips 211, so that a complete protection surface can still be formed during internal contraction and extrusion, and at the same time, multiple sections of sliding clamping are used to achieve overall combined sleeve connection, while avoiding the situation where the extrusion and detachment caused by the lack of an extrusion and contraction position affects the overall safety. The anti-puncture reinforcement plate 214 is used to protect the internal heat-absorbing protection belt 212 and the heat-insulating sleeve plate 213 to avoid puncture damage when the cable shape is modified and the cable is laid in the environment for use, thereby isolating and protecting the inside of the cable, further improving the safety of use, and integrating protection of the external insulating sleeve 219 by embedding the clamping groove 221 and the recessed reinforcement strip 222, so that quick operation can be performed when size correction is required, while avoiding puncture damage to weak points.

[0024] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special-shaped flame-retardant low-voltage power cable, comprising a fixed core (1), characterized in that: The side end of the fixed wire core (1) is provided with an elastic deformation component (2); The elastic deformation component (2) comprises an inner flexible insulating sleeve (201); The outer end of the fixed wire core (1) is sleeved with an inner flexible insulating sleeve (201), a plurality of fixed reinforcing ribs (202) are equidistantly embedded and installed on the inner side of the inner flexible insulating sleeve (201), a plurality of fixed shielding strips (203) are equidistantly fixed on the outer end of the inner flexible insulating sleeve (201), an integrated support sleeve (204) is sleeved on the outer ends of a plurality of the fixed shielding strips (203), an internal pressure support strip (205) is provided between two of the integrated support sleeves (204), a plurality of pressure-stabilizing telescopic cavities (206) are equidistantly provided on the inner side of the internal pressure support strip (205), a plurality of inner hole clamping blocks (207) are equidistantly welded to the side ends of the integrated support sleeve (204) and the two ends of the internal pressure support strip (205), and an integrated support column (208) is sleeved between the plurality of the inner hole clamping blocks (207); The outer ends of the integrated support sleeve (204) and the internal pressure support strip (205) are sleeved with a flame retardant isolation belt (209), the side ends of the flame retardant isolation belt (209) are bonded with a Z-shaped positioning plate (210), the outer ends of the flame retardant isolation belt (209) are bonded with a special-shaped sliding strip (211) at positions corresponding to the internal pressure support strip (205), the outer ends of the plurality of Z-shaped positioning plates (210) and special-shaped sliding strips (211) are paved with heat absorption protection belts (212), the outer ends of the heat absorption protection belts (212) are fixedly connected with a heat insulation sleeve plate (213), and the side ends of the heat insulation sleeve plate (213) are sleeved with a stab-proof reinforcement plate (214); The side end of the stab-proof reinforcement plate (214) is sleeved with an elastic heat-absorbing frame (215), the outer end of the elastic heat-absorbing frame (215) is symmetrically clamped with a plurality of outer row integration strips (216), the inner side of the outer row integration strips (216) is provided with a plurality of deformation matching cavities (217) at equal intervals, the outer end of the flame-retardant isolation belt (209) and the inner end of the heat-absorbing protection belt (212) are both bonded with an extrusion heat-resistant pad (218), and the outer ends of the elastic heat-absorbing frame (215) and the outer row integration strips (216) are fixedly sleeved with an outer insulating sleeve (219).

2. A special-shaped flame-retardant low-voltage power cable according to claim 1, characterized in that: The two ends of the inner side of the outer insulating sleeve (219) are bonded with protective extrusion plates (220), the outer end of the outer insulating sleeve (219) is provided with a plurality of equidistant embedding slots (221), the inner side of the embedding slots (221) is embedded with an inwardly recessed reinforcing strip (222), and the inner side of the protective extrusion plate (220) is provided with a plurality of equidistant elastic extrusion cavities (223).

3. A special-shaped flame-retardant low-voltage power cable according to claim 1, characterized in that: There are four fixed wire cores (1), two adjacent inner hole snap-fit ​​blocks (207) are rotated and fitted together, the longitudinal sections of the fixed shielding strip (203), the Z-shaped snap-fit ​​plate (210), the embedded snap-fit ​​groove (221) and the recessed reinforcement strip (222) are all arc-shaped, and there are three internal pressure support strips (205).

4. A special-shaped flame-retardant low-voltage power cable according to claim 1, characterized in that: The two special-shaped sliding strips (211) are slidably fitted with each other, and the side ends of the special-shaped sliding strips (211) are fitted with the side ends of the extrusion heat-resistant pads (218).

5. A special-shaped flame-retardant low-voltage power cable according to claim 1, characterized in that: The outer end of the elastic heat absorbing frame (215) is fitted to the inner end of the heat absorbing protection belt (212), and the outer end of the stab-proof reinforcement plate (214) is bonded to the side end of the outer row integration strip (216).

6. A special-shaped flame-retardant low-voltage power cable according to claim 2, characterized in that: The inner end of the protective extrusion plate (220) is sleeved with the outer end of the heat-absorbing protective belt (212), and one end of the protective extrusion plate (220) is bonded and assembled with one end of the anti-stab reinforcement plate (214).

7. A special-shaped flame-retardant low-voltage power cable according to claim 1, characterized in that: A press-fit protection component (3) is provided at the side end of the outer insulating sleeve (219); The pressed protection assembly (3) comprises a pressed support strip (301); A plurality of pressed support strips (301) are equidistantly embedded and installed at the side end of the outer insulating sleeve (219) corresponding to the position of the embedded snap-fit ​​groove (221); a pressed support plate (302) is fixed to one end of the plurality of pressed support strips (301); a buckle binding belt (303) is bonded to the outer end of the pressed support plate (302); a plurality of side clamping limit blocks (304) are equidistantly bonded to the inner end of the buckle binding belt (303); and an inner adhesive hard strip (305) is fixedly connected to one end of the plurality of side clamping limit blocks (304) corresponding to the position of the outer insulating sleeve (219); A plurality of arc-surface extrusion blocks (306) are equidistantly installed at the side end of the outer insulating sleeve (219) corresponding to the position of the embedded snap-fit ​​groove (221), and a plastic card band (307) is fixed to the outer ends of the plurality of arc-surface extrusion blocks (306), wherein a double convex buckle (308) is symmetrically welded to the top end of one of the arc-surface extrusion blocks (306), a suture adhesive tape (309) is bonded to the bottom end of the arc-surface extrusion block (306) located at the position of the double convex buckle (308), an integrated buckle (310) is welded to the middle part of the top end of the arc-surface extrusion block (306) located at the position of the double convex buckle (308), an integrated wide belt (311) is sleeved on the side end of the integrated buckle (310), and a glued pressing strip (312) is welded to the inner end of the plastic card band (307) corresponding to the position of the outer insulating sleeve (219).

8. A special-shaped flame-retardant low-voltage power cable according to claim 7, characterized in that: The side end of the pressed support plate (302) is fitted with the side end of the outer insulating sleeve (219), the longitudinal section of the inner adhesive hard strip (305) is arc-shaped, and the outer end of the pressed support strip (301) is fitted with the inner end of the buckle binding belt (303).

9. A special-shaped flame-retardant low-voltage power cable according to claim 7, characterized in that: The plastic cassette (307) is sleeved and connected with the double-convex buckle (308), and there are two buckle binding belts (303) and two plastic cassettes (307).

10. A special-shaped flame-retardant low-voltage power cable according to claim 7, characterized in that: The inner end of the integrated wide surface strip (311) is fitted onto the outer end of the glued pressed strip (312), and the glued pressed strip (312) is bonded and connected to the outer insulating sleeve (219).

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