Environment-friendly flexible insulation damage-preventing low-voltage cable

Abstract

The application discloses an environment-friendly flexible insulated damage-proof low-voltage cable and relates to the technical field of cables. An elastic insulation pipe is sleeved with the outer side end of a fixed wire core, inner shielding strips are fixed at equal intervals on the outer side end of the elastic insulation pipe, a press-fit pipe is fixed on the outer side end of the inner shielding strips, a bottom elastic inner hollow strip is fixed on the outer side end of the press-fit pipe, and a plurality of porous support frames are fixed at equal intervals on the inner side of the bottom elastic inner hollow strip. The application effectively solves the problem that the prior art does not provide elastic return components and rigid support components, the cavity at the compressed position of the internal wire core is enlarged, the wire core is loose and separated, the stability of the internal wire core is ensured, internal stable support, middle elastic limiting, external flexible support and elastic support are realized, the overall cable is fixed, the situation that the cable surface is broken and damaged due to uneven compression is reduced, and the internal wire core is prevented from being dispersed and affecting the internal stable work due to internal compression.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, in particular to an environmentally friendly, flexible-insulated, damage-resistant low-voltage cable. Background Art

[0002] Flexible low-voltage cable is a cable specially designed for low-voltage power transmission. It has good flexibility and durability and is suitable for use in mobile or frequently bent environments. Flexible low-voltage cable has the advantages of strong flexibility, wear resistance, excellent electrical properties, and can work in harsh environments such as high temperature, low temperature, and humidity. It is suitable for a variety of industrial applications.

[0003] However, when flexible cables are used now, because the cables are flexible both inside and outside and are not equipped with elastic reset components, buffer limit components and rigid support components, when the cables are squeezed, the inside and outside of the cables are deformed at the same time, which increases the cavity at the position of the internal cores. The pressure can easily cause the cores to loosen and separate, which greatly affects the safety of the cable itself and the stability of its operation. Summary of the Invention

[0004] The present invention provides an environmentally friendly, flexible, insulated, damage-resistant low-voltage cable, which can effectively solve the problem raised in the above-mentioned background technology that when flexible cables are currently used, because the cables are flexible both inside and outside, and are not provided with elastic reset components, buffer limit components and rigid support components, when the cables are squeezed, the inside and outside of the cables are deformed simultaneously, so that the cavity at the position of the internal core is enlarged, and the core is easily loosened and separated under pressure, which greatly affects the safety of the cable itself and the stability of its operation.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an environmentally friendly flexible insulated damage-resistant low-voltage cable, comprising a fixed core, an elastic pressure-resistant component being provided on the outer side of the fixed core;

[0006] The elastic pressure-resistant component includes an elastic insulating tube;

[0007] The outer end of the fixed wire core is sleeved with an elastic insulating tube, and a number of inner shielding strips are equidistantly fixed to the outer end of the elastic insulating tube, and a press-fit fixing tube is fixed to the outer end of the several inner shielding strips, and a number of bottom spring inner empty strips are equidistantly fixed to the outer end of the press-fit fixing tube, and a number of porous support frames are equidistantly fixed to the inner side of the bottom spring inner empty strips, and downward pressure springs are symmetrically fixed to the top end of the inner side of the porous support frame, and arc-shaped pressing plates are fixed at the bottom ends of the two downward pressure springs corresponding to the positions of the porous support frame, and telescopic airbags are symmetrically installed on the inner side of the porous support frame, and a special-shaped pushing plate is fixed to the bottom end of the inner side of the telescopic airbag, and a number of reset springs are equidistantly fixed to the top end of the special-shaped pushing plate, and a flexible heat insulation sheet is fixed to the side end of the telescopic airbag;

[0008] A multi-slot hard tube is sleeved on the outside of the multiple bottom elastic inner hollow strips, and a plurality of snap-fitting holes are equidistantly opened on the side ends of the multi-slot hard tubes. A heat exchange bidirectional frame is sleeved on the side ends of the snap-fitting holes, and a Z-shaped snap-fit ​​plate is fixed on the side ends of the heat exchange bidirectional frame. An inner hollow elastic strip is bonded between two of the Z-shaped snap-fit ​​plates, an upper convex elastic plate is fixed on the inner bottom end of the inner hollow elastic strip, a lower convex elastic plate is fixed on the inner top end of the inner hollow elastic strip, and elastic insulating sleeves are bonded on the outer ends of the multiple inner hollow elastic strips.

[0009] According to the above technical solution, a plurality of the elastic insulating sleeves are fixed with a porous middle column at the outer ends, a plurality of folded inner cavities are equidistantly opened on the inner side of the porous middle column, a plurality of special-shaped hollow pads are equidistantly fixed on the outer ends of the porous middle column, a plurality of contraction springs are equidistantly installed on the inner sides of the special-shaped hollow pads, a curved arc-blocking plate is bonded to the outer ends of the porous middle column and the special-shaped hollow pad, a folding groove is opened on the top and bottom ends of the side ends of the curved arc-blocking plate, a plurality of the curved arc-blocking plates are sleeved on the outer ends of the total insulating sleeve, a plurality of Z-shaped shielding strips are equidistantly bonded to the outer ends of the total insulating sleeve, a plurality of Z-shaped shielding strips are bonded to the side ends of an outer sheath insulating tube, a plurality of buffer fixing cavities are equidistantly opened on the inner side of the outer sheath insulating tube.

[0010] According to the above technical solution, the arc-shaped pressing plate is slidably connected to the porous support frame, the special-shaped pushing plate is slidably sleeved on the inner side of the porous support frame, and the top of the reset spring is fixedly connected to the top inner side of the telescopic airbag.

[0011] According to the above technical solution, the bottom end of the arc-shaped pressing plate is fitted with the bottom end of the inner side of the hollow strip in the bottom spring, and the flexible heat insulation sheet is slidably fitted with the porous support frame.

[0012] According to the above technical solution, the multiple Z-shaped elastic plates are slidably sleeved with each other, and the upper convex elastic plate is slidably sleeved with the lower convex elastic plate.

[0013] According to the above technical solution, the adjacent curved arc-clamping plates are slidably engaged with each other, and the adjacent Z-shaped shielding strips are slidably connected with each other.

[0014] According to the above technical solution, the inner end of the heat exchange bidirectional frame is fitted with the outer end of the hollow strip inside the bottom spring, and the side end of the special-shaped hollow pad is fixedly connected to the side end of the elastic insulating sleeve.

[0015] According to the above technical solution, a snap-fit ​​anti-damage component is provided at the outer end of the outer insulating tube;

[0016] The snap-on damage prevention assembly includes a processing support strip;

[0017] The outer end of the outer sleeve insulating tube is welded with several processing support strips at equal distances, and the inner side of the processing support strip is provided with several buffer support cavities at equal distances. The side end of the processing support strip is fixed with an elastic fixing strip. The side end of the outer sleeve insulating tube is symmetrically bonded with several plug-in arc blocks at equal distances, and the side end of the plug-in arc block is connected to a clamping sleeve fixing plate by a fixing bolt. A clamping protrusion is welded at one end of the clamping sleeve fixing plate, and a combination outer sleeve is welded at one end of multiple clamping protrusions located at one end of the outer sleeve insulating tube, and a combination inner sleeve is welded at one end of multiple clamping protrusions located at the other end of the outer sleeve insulating tube. The outer ends of the combination outer sleeve and the combination inner sleeve are both provided with limiting threads, and the outer end of the combination outer sleeve is connected to an internal threaded tube through limiting threads. The inner side of the combination outer sleeve is provided with several inner column clamping grooves at equal distances, and the outer end of the combination inner sleeve is welded with several inner hollow fixing strips at equal distances.

[0018] According to the above technical solution, the longitudinal section of the ferrule fixing plate is L-shaped, the side end of the ferrule fixing plate is fitted with the outer end of the outer insulating tube, and the side end of the engaging protrusion is engaged and connected with the side end of the plug-in arc block.

[0019] According to the above technical solution, the inner diameter of the combined outer sleeve is equal to the outer diameter of the combined inner sleeve, the inner diameter of the combined outer sleeve and one end of the combined inner sleeve are both fitted with the side end of the outer sleeve insulating tube, and the inner diameter of the internal threaded tube is equal to the outer diameter of the combined outer sleeve.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. An elastic pressure-resistant component is provided, which conducts heat to the position of the inner empty strip of the bottom bullet through the elastic insulating tube, the inner shielding strip and the pressed fixed tube. The telescopic airbag is heated by the internal heat, and the telescopic airbag and the special-shaped pushing plate are used to drive the flexible heat insulation sheet to open the porous support frame, so that the inner empty strip of the bottom bullet is in contact with the porous support frame. At this time, the fixed wire core, the elastic insulating tube, the inner shielding strip and the pressed fixed tube are heated and expanded outward, and the arc-shaped pressing plate is driven by the downward pressure spring to push the inner empty strip of the bottom bullet inward. The internal expansion and external extrusion cooperate with the multi-slot hard tube and the heat exchange bidirectional frame to provide rigid support for the interior, so as to achieve internal structural stability. The wire core and the insulation layer are always in contact, so as to avoid the increase of the internal cavity due to flexible deformation and the loosening of the wire core, thereby achieving internal stable operation;

[0022] By sliding and squeezing multiple Z-shaped shielding strips against each other, and cooperating with the curved arc-arc plate to slide and extrude using the folding groove and perform small-angle folding processing, the outer insulating tube, the buffer fixing cavity, the porous middle column and the folding inner cavity are used for external support and folding, and multiple sections of the cavity are connected to each other, so that air flow can be achieved during folding and stretching, ensuring steady folding and extrusion processing on the outside, and cooperating with the special-shaped hollow pad and the contraction spring for position-limiting support, limiting its maximum pressure degree, and avoiding external cracking and damage caused by overpressure, the Z-shaped spring plates are squeezed against each other for elastic superposition processing, and the inner hollow elastic strip, the upper convex elastic plate and the lower convex elastic plate form an arc-shaped lifting and folding processing to achieve central elliptical support, so that the elliptical buffer support can be used when the outside is under pressure and folded, and the multi-section cavity extrusion support can achieve flexible buffering of cable pressure, and the insulation layer can be limited and fixed to balance the overall pressure to avoid cracking and damage caused by excessive pressure on a single point;

[0023] The internal wire core is squeezed and supported by the middle multi-point support components and hard fixing components, and the middle arc support limit and lifting elastic pressure are combined, and the external multi-segment arc elastic plates are squeezed against each other and the multi-segment cavity folding limit is set, which effectively solves the problem of no elastic reset components and rigid support components in the prior art, so that the cavity at the compressed position of the internal wire core is enlarged and the wire core is loosely separated, ensuring the stability of the internal wire core, realizing internal stable support, middle elastic limitation and external flexible support and elastic support, realizing the overall fixed processing of the cable, reducing the occurrence of cracks and damage on the cable surface due to uneven pressure, and avoiding the dispersion of the wire core due to internal pressure affecting the internal stable work.

[0024] 2. A locking anti-damage component is provided, and the plug-in arc block is adhered to the outer end of the outer sleeve insulating tube, and the clamping sleeve fixing plate and the locking protrusion are sleeved onto the side end of the plug-in arc block, and the fixing bolts are used to clamp the plug-in arc block and the clamping sleeve fixing plate, so that the combined outer sleeve and the combined inner sleeve are fixed to the side end of the cable, and then the combined outer sleeve and the combined inner sleeve are sleeved together, and the inner hollow fixing strip is inserted into the inner side of the inner column clamping groove, and the internal threaded tube and the limiting thread are used to clamp and limit the combined outer sleeve and the combined inner sleeve, so that the two sets of cables are fixed and clamped, ensuring the sealing protection of the connection, avoiding the connection point from being exposed, and ensuring the stability of the connection and the stability of use. The outer end of the outer sleeve insulating tube is supported and protected by the processing support strip, and the buffer support cavity is used for extrusion positioning and support limitation, so as to realize elastic support of the cable outside and flexible contraction and stretching of the cable extrusion, and the processing support strip and the elastic fixing strip replace the external insulation layer to cause friction loss, thereby reducing the friction loss of the insulation layer of the cable, and realizing support protection and load-bearing protection of the cable surface.

[0025] To sum up, by cooperating with each other, the elastic pressure-resistant components and the snap-on anti-loss components, and utilizing multiple snap-on components to combine and connect multiple sections of cables, external protection is achieved. Then, the external elastic protection, the middle folding protection, the elastic support, and the internal rigid support cooperate with each other to achieve a steady connection, ensuring the stable operation and installation of the cable. By cooperating with multiple components, the cable loss is reduced and the stability of the cable is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] In the attached figure:

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the elastic pressure-resistant component of the present invention;

[0030] Figure 3 This is a schematic diagram of the installation structure of the hollow strip in the bottom bullet of the present invention;

[0031] Figure 4 This is a schematic diagram of the installation structure of the buffer fixing cavity of the present invention;

[0032] Figure 5 This is a schematic diagram of the installation structure of the multi-groove hard pipe of the present invention;

[0033] Figure 6 This is a schematic diagram of the installation structure of the elastic insulating tube of the present invention;

[0034] Figure 7 It is a schematic diagram of the installation structure of the downward pressure spring of the present invention;

[0035] Figure 8 The present invention Figure 7 A magnified schematic diagram of the A structure;

[0036] Figure 9 It is a schematic structural diagram of the locking anti-damage assembly of the present invention;

[0037] Figure 10 It is a schematic diagram of the installation structure of the internally threaded pipe of the present invention;

[0038] Figure 11 This is a schematic diagram of the installation structure of the elastic fixing strip of the present invention;

[0039] Numbers in the figure: 1, fixed wire core;

[0040] 2. Elastic pressure-resistant assembly; 201. Elastic insulating tube; 202. Inner shielding strip; 203. Pressed fixing tube; 204. Bottom spring inner hollow strip; 205. Multi-porous support frame; 206. Downward pressure spring; 207. Arc-shaped pressing plate; 208. Telescopic airbag; 209. Special-shaped push plate; 210. Return spring; 211. Flexible thermal insulation sheet; 212. Multi-slot rigid tube; 213. Snap-fit ​​fixing hole; 214. Bidirectional heat exchange frame; 215, Z-shaped spring plate; 216, hollow elastic strip; 217, upper convex elastic plate; 218, lower convex elastic plate; 219, elastic insulating sleeve; 220, porous central column; 221, folded inner cavity; 222, special-shaped hollow pad; 223, contraction spring; 224, curved arc plate; 225, folded groove; 226, total insulating sleeve; 227, Z-shaped shielding strip; 228, outer insulating tube; 229, buffer fixing cavity;

[0041] 3. Snap-fit ​​anti-damage assembly; 301. Processing support strip; 302. Buffer support cavity; 303. Elastic fixing strip; 304. Inserting arc block; 305. Fixing bolt; 306. Cardan fixing plate; 307. Snap-fit ​​protrusion; 308. Combined outer sleeve; 309. Combined inner sleeve; 310. Limiting thread; 311. Internal threaded tube; 312. Inner column snap-fit ​​groove; 313. Inner hollow fixing strip. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention are described below with reference to 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.

[0043] Example: Figure 1-11 As shown, the present invention provides a technical solution, an environmentally friendly flexible insulated damage-resistant low-voltage cable, comprising a fixed core 1, an elastic pressure-resistant component 2 is provided on the outside of the fixed core 1;

[0044] The elastic pressure-resistant component 2 includes an elastic insulating tube 201, an inner shielding strip 202, a pressing and fixing tube 203, a bottom elastic inner hollow strip 204, a porous supporting frame 205, a downward pressing spring 206, an arc-shaped pressing plate 207, a telescopic airbag 208, a special-shaped pushing plate 209, a return spring 210, a flexible thermal insulation sheet 211, a multi-grooved hard tube 212, a locking and fixing hole 213, a heat exchange bidirectional frame 214, a Z-shaped locking plate 215, an inner hollow elastic strip 216, an upper convex elastic plate 217, a lower convex elastic plate 218, an elastic insulating sleeve 219, a porous middle column 220, a folded inner cavity 221, a special-shaped hollow pad 222, a contraction spring 223, a curved arc locking plate 224, a folding groove 225, a total insulating sleeve 226, a Z-shaped shielding strip 227, an outer jacket insulating tube 228 and a buffer fixing cavity 229;

[0045] The outer end of the fixed wire core 1 is sleeved with an elastic insulating tube 201, and several inner shielding strips 202 are fixed at equal distances on the outer end of the elastic insulating tube 201. A pressing fixed tube 203 is fixed on the outer end of the several inner shielding strips 202. Several bottom elastic inner empty strips 204 are fixed at equal distances on the outer end of the pressing fixed tube 203. The bottom end of the arc pressing plate 207 is fitted with the inner bottom end of the bottom elastic inner empty strip 204 to press the bottom elastic inner empty strip 204 to the side end of the pressing fixed tube 203. Several porous support frames 205 are fixed at equal distances on the inner side of the bottom elastic inner empty strip 204. Downward pressure springs 206 are symmetrically fixed on the top inner side of the porous support frame 205. Arc pressing plates 207 are fixed at the bottom ends of the two downward pressure springs 206 corresponding to the positions of the porous support frames 205. The arc pressing plates 207 and the porous support frames The frame 205 is slidably connected, so that the arc-shaped pressing plate 207 can be operated steadily when it is lifted and moved. A telescopic airbag 208 is symmetrically installed on the inner side of the porous support frame 205, and a special-shaped push plate 209 is fixed to the bottom end of the inner side of the telescopic airbag 208. A number of return springs 210 are equidistantly fixed to the top of the special-shaped push plate 209. The top of the return spring 210 is fixedly connected to the top end of the inner side of the telescopic airbag 208 to realize the expansion and closing of the telescopic airbag 208. A flexible heat insulation sheet 211 is fixed to the side end of the telescopic airbag 208. The special-shaped push plate 209 is slidably sleeved on the inner side of the porous support frame 205, and the flexible heat insulation sheet 211 is slidably fitted with the porous support frame 205, so that it can effectively guide and support when driving the flexible heat insulation sheet 211 to move, and can effectively and directly perform position shifting linkage;

[0046] The outer sides of the plurality of bottom spring inner hollow strips 204 are sleeved with a multi-slot hard tube 212, and the side ends of the multi-slot hard tube 212 are equidistantly provided with a plurality of snap-fit ​​fixing holes 213, and the side ends of the snap-fit ​​fixing holes 213 are sleeved with a heat exchange bidirectional frame 214. The inner side ends of the heat exchange bidirectional frame 214 are fitted with the outer side ends of the bottom spring inner hollow strips 204 to ensure the steady operation of the heat exchange, and the side ends of the heat exchange bidirectional frame 214 are fixed with a Z-shaped spring plate 215, and the plurality of Z-shaped spring plates 215 are slidably sleeved with each other to ensure the stability of the heat exchange. For position adjustment and position limiting, an inner hollow elastic strip 216 is bonded between the two Z-shaped spring plates 215. An upper convex elastic plate 217 is fixed to the inner bottom end of the inner hollow elastic strip 216, and a lower convex elastic plate 218 is fixed to the inner top end of the inner hollow elastic strip 216. The upper convex elastic plate 217 and the lower convex elastic plate 218 are slidably fitted together to achieve elastic expansion and contraction. The elastic support and switching support are used to ensure the steady implementation of the overall support engagement and the position limiting engagement. The outer ends of the multiple inner hollow elastic strips 216 are bonded with elastic insulating sleeves 219.

[0047] The outer ends of the multiple elastic insulating sleeves 219 are fixed with porous middle columns 220, and the inner sides of the porous middle columns 220 are equidistantly provided with a plurality of folded inner cavities 221. The outer ends of the porous middle columns 220 are equidistantly fixed with a plurality of special-shaped hollow pads 222. The side ends of the special-shaped hollow pads 222 are fixedly connected with the side ends of the elastic insulating sleeves 219 to achieve a steady fixed connection, thereby ensuring the stability of the overall support and engagement. A plurality of contraction springs 223 are equidistantly installed on the inner sides of the special-shaped hollow pads 222. The outer ends of the porous middle columns 220 and the special-shaped hollow pads 222 are bonded with curved arc plates 224. The adjacent curved arc plates 224 are fixedly connected. The sliding connection between them allows for steady operation during bending, folding and closing. Folding grooves 225 are provided at the top and bottom ends of the side ends of the bending arc plates 224. The outer ends of multiple bending arc plates 224 are sleeved with a total insulating sleeve 226. Several Z-shaped shielding strips 227 are equidistantly bonded to the outer ends of the total insulating sleeve 226. Adjacent Z-shaped shielding strips 227 are slidably connected to each other, allowing for steady operation during shielding support and shielding protection. Several Z-shaped shielding strips 227 are bonded to the side ends with an outer jacket insulating tube 228, and several buffer fixing cavities 229 are equidistantly provided on the inner side of the outer jacket insulating tube 228.

[0048] The outer end of the outer insulating tube 228 is provided with a snap-fit ​​anti-damage component 3;

[0049] The locking anti-damage assembly 3 includes a processing support bar 301, a buffer support cavity 302, an elastic fixing bar 303, an inserting arc block 304, a fixing bolt 305, a clamping sleeve fixing plate 306, a locking protrusion 307, a combined outer sleeve 308, a combined inner sleeve 309, a limiting thread 310, an internal threaded tube 311, an inner column locking groove 312 and an inner hollow fixing bar 313;

[0050] Several processing support strips 301 are welded at equal distances on the outer end of the outer sleeve insulating tube 228, and several buffer support cavities 302 are opened at equal distances on the inner side of the processing support strip 301. An elastic fixing strip 303 is fixed to the side end of the processing support strip 301, and several plug-in arc blocks 304 are symmetrically bonded to the side end of the outer sleeve insulating tube 228. The side end of the plug-in arc block 304 is connected to a clamping sleeve fixing plate 306 through a fixing bolt 305. The longitudinal section of the clamping sleeve fixing plate 306 is L-shaped, and the side end of the clamping sleeve fixing plate 306 is fitted with the outer end of the outer sleeve insulating tube 228. The side end of the locking protrusion 307 is clamped and connected with the side end of the plug-in arc block 304, realizing the locking support and steady limiting of the connecting parts, ensuring the steady operation of integrated fixation and positioning fixation, and a locking protrusion 307 is welded at one end of the clamping sleeve fixing plate 306, which is located at one end of the outer sleeve insulating tube 228. A combined outer sleeve 308 is welded to one end of the multiple locking protrusions 307, and a combined inner sleeve 309 is welded to one end of the multiple locking protrusions 307 located at the other end of the outer sleeve insulating tube 228. The inner diameter of the combined outer sleeve 308 is equal to the outer diameter of the combined inner sleeve 309. The inner diameter of the combined outer sleeve 308 and one end of the combined inner sleeve 309 are both fitted with the side end of the outer sleeve insulating tube 228. The inner diameter of the internal threaded tube 311 is equal to the outer diameter of the combined outer sleeve 308, thereby achieving the stability of multi-segment locking and combined connection. The outer ends of the combined outer sleeve 308 and the combined inner sleeve 309 are both provided with limiting threads 310, and the outer end of the combined outer sleeve 308 is connected to the internal threaded tube 311 through the limiting threads 310. A number of inner column locking grooves 312 are equidistantly provided on the inner side of the combined outer sleeve 308, and a number of inner hollow fixing strips 313 are equidistantly welded to the outer end of the combined inner sleeve 309.

[0051] The working principle and use process of the present invention are as follows: when using a low-voltage cable, the staff will bond a plurality of plug-in arc blocks 304 to the outer end of the outer insulating tube 228. After the plug-in arc blocks 304 are bonded, the clamping sleeve fixing plate 306 is sleeved onto the side end of the plug-in arc blocks 304, and the locking protrusion 307 is completely embedded into the side end of the plug-in arc blocks 304, so that the plug-in arc blocks 304 are stably combined and connected with the clamping sleeve fixing plate 306 and the locking protrusion 307, and the plug-in arc blocks 304 are fixed with the fixing bolts 305. The arc block 304 is engaged with the clamping sleeve fixing plate 306, thereby fixing the clamping protrusion 307 to the side end of the outer jacket insulating tube 228, and fixing the combined outer jacket 308 and the combined inner jacket 309 to the side end of the cable, winding the fixed cores 1 of the two cables together, and fixing the two groups of cables together. After the fixing is completed, the combined outer jacket 308 and the combined inner jacket 309 are fitted together, and the inner hollow fixing strip 313 is inserted into the inner side of the inner column clamping groove 312 to realize the combination of the outer jacket 308 and the combined inner jacket 309. The cam 310 of the second end cap 308 is pressed against the cam 311 and the cam 312 is pressed against the cam 313 to release the cam 314.

[0052] When the cable is in use, the fixed core 1 is used for conductive processing. The fixed core 1 generates heat during conduction. The heat is conducted outward along the elastic insulating tube 201, the inner shielding strip 202 and the pressed fixed tube 203. The heat is transferred to the position of the empty strip 204 in the bottom spring. During the use of the fixed core 1, thermal expansion is generated due to the heat. The fixed core 1 pushes the elastic insulating tube 201, the inner shielding strip 202 and the pressed fixed tube 203 to expand outward. At the same time, the arc pressing plate 207 is driven by the downward pressure spring 206 along the porous support The frame 205 moves toward the position of the fixed core 1 on the inner side, and pushes the bottom spring inner hollow strip 204 to move toward the position of the fixed core 1 through the arc-shaped pressing plate 207. The arc-shaped pressing plate 207 drives the bottom spring inner hollow strip 204, the pressing fixed tube 203, the inner shielding strip 202 and the elastic insulating tube 201 to be squeezed inward. By using the bidirectional squeezing inside and outside, the side end of the fixed core 1 is steadily squeezed and fixed, ensuring that the fixed core 1 is always tightly fitted with the elastic insulating tube 201, ensuring the stability of heat exchange from the inside to the outside and the tight engagement of the internal itself;

[0053] When the heat is transferred to the position of the empty strip 204 in the bottom bullet, the heat is transferred to the position of the porous support frame 205 along the arc-shaped pressing plate 207, and the heat is transferred to the position of the telescopic airbag 208. The internal heat is used to perform thermal expansion treatment on the gas in the telescopic airbag 208, and the telescopic airbag 208 drives the special-shaped pushing plate 209 to move along the porous support frame 205. The telescopic airbag 208 and the special-shaped pushing plate 209 drive the flexible heat insulating sheet 211 to move along the porous support frame 205, so that the inner top of the empty strip 204 in the bottom bullet fits with the top of the porous support frame 205. At this time, the return spring 210 in the telescopic airbag 208 is pulled Stretch, fit the heat exchange part of the porous support frame 205 with the porous support frame 205 to achieve heat exchange treatment from the inside to the outside, and cooperate with the heat exchange bidirectional frame 214 on the inner side of the clamping fixing hole 213 at the position of the multi-slot hard tube 212 to fit the outer end of the empty strip 204 in the bottom spring for heat exchange, so as to achieve gradual transfer from the inside to the outside, ensure uniform heat exchange and steady heat exchange treatment, and use multiple heat exchange components to cooperate with each other to achieve steady and uniform heat exchange and linked heat exchange treatment, reduce the occurrence of internal heat concentration and excessive internal temperature, reduce the damage to the fixed core 1 inside the cable due to high heat and single-point concentrated heat, and ensure the stable operation of the cable;

[0054] When the cable is in use and is subjected to the pressure of its own weight and the pressure of external components, the buffer fixing cavity 229 is used to buffer and support the outer insulating tube 228, so that when it is under external pressure, the air elastic buffer in the buffer fixing cavity 229 can be used, and multiple groups of Z-shaped shielding strips 227 are rotated and fitted together to slide, and multiple curved arc plates 224 are rotated and fitted together to cooperate with the folding groove 225 to perform small-scale bending and folding, and then squeezed from the outside to the position of the porous middle column 220 through the special-shaped hollow pad 222. At this time, the contraction spring 223 is compressed, and the folding groove 225 is used to fold the cable. The folded inner cavity 221 performs small-scale compression and extension on the porous middle column 220, and utilizes the air inside the folded inner cavity 221 and the buffer fixed cavity 229 to provide folded elastic support. The contraction spring 223 drives the special-shaped hollow pad 222 to retract and reset, and cooperates with the elastic support of the curved arc plate 224 and the Z-shaped shielding strip 227 to achieve elliptical compression support and positioning restriction, ensuring the stability of its fixed restriction and support limit. The external multi-stage buffer is used to gradually reduce the pressure from the outside to the inside, achieving the stability of the overall support and overall limit.

[0055] The inner hollow elastic strip 216 is pushed to move by pressure. At this time, the upper convex elastic plate 217 moves inward along the lower convex elastic plate 218, causing the inner hollow elastic strip 216 to deform, and cooperate with the Z-shaped spring plate 215 to squeeze and deform each other, and cooperate with the internal heat exchange bidirectional frame 214, the bottom elastic inner hollow strip 204 and the porous support frame 205 to rigidly support the interior, so that when the cable is under pressure, it can be buffered by external multi-segment support, and cooperate with internal rigid positioning restrictions to achieve elastic support while isolating and protecting the interior, reducing damage to the middle and outer insulation and shielding parts of the cable due to external pressure, and avoiding the looseness of the wire core due to internal deformation, thereby improving the working stability of the cable. The elastic insulating tube 201, the elastic insulating sleeve 219, the total insulating sleeve 226 and the outer insulating tube 228 are used to insulate the cable layer by layer, and cooperate with the inner shielding strip 202 and the Z-shaped shielding strip 227 for double shielding, realizing external elastic shielding and internal rigid shielding, and improving the stability of insulation and shielding.

[0056] Finally, it should be noted that the above description is merely a preferred embodiment 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 will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An environmentally friendly, flexible-insulated, damage-resistant low-voltage cable comprising a fixed core (1), characterized in that: An elastic pressure-resistant component (2) is provided on the outside of the fixed wire core (1); The elastic pressure-resistant component (2) comprises an elastic insulating tube (201); The outer end of the fixed wire core (1) is sleeved with an elastic insulating tube (201), the outer end of the elastic insulating tube (201) is fixed with a plurality of inner shielding strips (202) at equal intervals, the outer ends of the plurality of inner shielding strips (202) are fixed with a press-fit fixing tube (203), the outer end of the press-fit fixing tube (203) is fixed with a plurality of bottom elastic inner hollow strips (204) at equal intervals, the inner side of the bottom elastic inner hollow strips (204) is fixed with a plurality of porous support frames (205) at equal intervals, and the inner top of the porous support frame (205) is fixed with a plurality of bottom elastic inner hollow strips (204) at equal intervals. Downward pressure springs (206) are symmetrically fixed, and arc-shaped pressing plates (207) are fixed at the positions of the two downward pressure springs (206) corresponding to the porous support frame (205). A telescopic airbag (208) is symmetrically installed on the inner side of the porous support frame (205), and a special-shaped push plate (209) is fixed to the inner bottom end of the telescopic airbag (208). A plurality of return springs (210) are equidistantly fixed to the top end of the special-shaped push plate (209), and a flexible heat insulation sheet (211) is fixed to the side end of the telescopic airbag (208); A plurality of bottom elastic inner hollow strips (204) are sleeved on the outside with a multi-grooved hard tube (212), a plurality of locking fixing holes (213) are opened at equal intervals on the side ends of the multi-grooved hard tube (212), a heat exchange bidirectional frame (214) is sleeved on the side ends of the locking fixing holes (213), a Z-shaped locking plate (215) is fixed on the side ends of the heat exchange bidirectional frame (214), an inner hollow elastic strip (216) is bonded between two of the Z-shaped locking plates (215), an upper convex elastic plate (217) is fixed on the inner bottom end of the inner hollow elastic strip (216), a lower convex elastic plate (218) is fixed on the inner top end of the inner hollow elastic strip (216), and an elastic insulating sleeve (219) is bonded on the outer ends of the plurality of inner hollow elastic strips (216); The outer ends of the plurality of elastic insulating sleeves (219) are fixed with a porous middle column (220), the inner side of the porous middle column (220) is provided with a plurality of folded inner cavities (221) at equal intervals, the outer ends of the porous middle column (220) are fixed with a plurality of special-shaped hollow pads (222) at equal intervals, the inner side of the special-shaped hollow pad (222) is provided with a plurality of contraction springs (223) at equal intervals, and the outer ends of the porous middle column (220) and the special-shaped hollow pad (222) are bonded with a curved arc plate (22 4), the top and bottom ends of the side ends of the curved arc plate (224) are both provided with folding grooves (225), the outer ends of multiple curved arc plates (224) are sleeved with a total insulation sleeve (226), the outer ends of the total insulation sleeve (226) are equidistantly bonded with a plurality of Z-shaped shielding strips (227), the side ends of multiple Z-shaped shielding strips (227) are bonded with an outer jacket insulation tube (228), and the inner side of the outer jacket insulation tube (228) is provided with a plurality of buffer fixing cavities (229) equidistantly.

2. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 1, characterized in that: The arc-shaped pressing plate (207) is slidably connected to the porous support frame (205), the special-shaped pushing plate (209) is slidably sleeved on the inner side of the porous support frame (205), and the top end of the return spring (210) is fixedly connected to the inner top end of the telescopic airbag (208).

3. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 1, characterized in that: The bottom end of the arc-shaped pressing plate (207) is fitted with the bottom end of the inner side of the bottom elastic inner hollow strip (204), and the flexible heat insulation sheet (211) is slidably fitted with the porous support frame (205).

4. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 1, characterized in that: The plurality of Z-shaped spring plates (215) are slidably sleeved with each other, and the upper convex elastic plate (217) and the lower convex elastic plate (218) are slidably sleeved with each other.

5. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 1, characterized in that: Adjacent curved arc-clamping plates (224) are slidably engaged with each other, and adjacent Z-shaped shielding strips (227) are slidably connected with each other.

6. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 1, characterized in that: The inner end of the heat exchange bidirectional frame (214) is fitted with the outer end of the bottom elastic inner hollow strip (204), and the side end of the special-shaped hollow pad (222) is fixedly connected to the side end of the elastic insulating sleeve (219).

7. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 1, characterized in that: The outer end of the outer insulating tube (228) is provided with a snap-fit ​​anti-damage component (3); The engaging anti-damage assembly (3) comprises a processing support strip (301); The outer end of the outer insulating tube (228) is welded with a plurality of processing support strips (301) at equal intervals, and the inner side of the processing support strip (301) is provided with a plurality of buffer support cavities (302) at equal intervals. The side end of the processing support strip (301) is fixed with an elastic fixing strip (303). The side end of the outer insulating tube (228) is symmetrically bonded with a plurality of plug-in arc blocks (304). The side end of the plug-in arc block (304) is connected to a clamping sleeve fixing plate (306) through a fixing bolt (305). One end of the clamping sleeve fixing plate (306) is welded with a clamping protrusion (307). The plurality of plug-in arc blocks (304) located at one end of the outer insulating tube (228) are fixed with an elastic fixing strip (303). A combined outer sleeve (308) is welded to one end of each engaging protrusion (307), and a combined inner sleeve (309) is welded to one end of each of the engaging protrusions (307) located at the other end of the outer sleeve insulating tube (228). The outer ends of the combined outer sleeve (308) and the combined inner sleeve (309) are both provided with limiting threads (310). The outer end of the combined outer sleeve (308) is connected to an internal threaded tube (311) via the limiting threads (310). A plurality of inner column engaging grooves (312) are equidistantly provided on the inner side of the combined outer sleeve (308), and a plurality of inner hollow fixing strips (313) are equidistantly welded to the outer end of the combined inner sleeve (309).

8. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 7, characterized in that: The longitudinal section of the clamping sleeve fixing plate (306) is L-shaped, the side end of the clamping sleeve fixing plate (306) is fitted with the outer end of the outer jacket insulating tube (228), and the side end of the engaging protrusion (307) is engaged and connected with the side end of the plug-in arc block (304).

9. The environmentally friendly flexible insulated damage-resistant low-voltage cable according to claim 7, characterized in that: The inner diameter of the combined outer sleeve (308) is equal to the outer diameter of the combined inner sleeve (309); the inner diameter of the combined outer sleeve (308) and one end of the combined inner sleeve (309) are both fitted with the side end of the outer sleeve insulating tube (228); and the inner diameter of the internal threaded tube (311) is equal to the outer diameter of the combined outer sleeve (308).

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