A high-flexibility low-voltage power cable

Abstract

The application discloses a kind of high-flexibility low-voltage power cable, it is related to power cable technical field, including center conductor, the center conductor outside is tightly covered with internal rubber insulation layer, a plurality of internal rubber insulation layer outside is collectively covered with external rubber binding layer, and external rubber binding layer outside is covered with barrier protection layer, the barrier protection layer outside is sequentially covered with internal rubber protection layer, and external rubber protection layer, internal rubber protection layer and external rubber protection layer between being provided with internal liquid guide square tube, the external rubber protection layer outside is connected with splicing buckle box, the application is cooperated between each pipeline in cable and the concentrated liquid guide splicing box and atomizing nozzle, by optimizing the structure outside cable, when cable is used in different environments, it can be protected by spraying different functional solutions, thereby effectively improving the environmental adaptability of cable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power cable, in particular to a high-flexibility low-voltage power cable. BACKGROUND

[0002] The low-voltage power cable is a cable product for transmitting and distributing low-voltage power, which is generally applicable to the power system of AC 50Hz and rated voltage 1kV and below (part of the standards also include the range of 3kV and below), and is widely used in the power distribution line of industrial, civil building, municipal engineering and other fields, and is the key carrier connecting low-voltage power supply, power distribution equipment and power load.

[0003] However, at present, the power cable lacks corresponding auxiliary protection structure in the use process, so that the power cable cannot actively protect the outside of the cable in the use process, so that the cable can be protected by the physical and chemical properties of the outer protective layer of the cable in harsh environments, thereby reducing the service life and use convenience of the power cable. SUMMARY

[0004] The present application provides a high-flexibility low-voltage power cable, which can effectively solve the problem of the power cable lacking corresponding auxiliary protection structure in the use process, so that the power cable cannot actively protect the outside of the cable in the use process, so that the cable can be protected by the physical and chemical properties of the outer protective layer of the cable in harsh environments, thereby reducing the service life and use convenience of the power cable.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a high-flexibility low-voltage power cable, comprising a center conductor, the center conductor is tightly covered with an internal rubber insulation layer outside, a plurality of internal rubber insulation layers are collectively covered with an external rubber bundling layer outside, and the external rubber bundling layer is covered with a barrier protection layer outside;

[0006] The barrier protection layer is provided with an external three-dimensional comprehensive protection mechanism outside, and the external three-dimensional comprehensive protection mechanism is used for comprehensively protecting the outside of the cable to ensure that the cable can adapt to different environments in the use process and enhance the resistance of the power cable to the external environment;

[0007] The external three-dimensional comprehensive protection mechanism comprises an internal rubber protection layer;

[0008] The barrier protection layer is sequentially covered with an internal rubber protection layer and an external rubber protection layer outside;

[0009] An internal liquid guide square tube is arranged between the internal rubber protection layer and the external rubber protection layer;

[0010] A splicing buckle box is clamped outside the external rubber protection layer.

[0011] The splicing buckle box side is provided with a liquid guide ring-shaped box, and the inner cavity of the liquid guide ring-shaped box is provided with an internal circular arc guide ring;

[0012] The outer side of the internal circular arc guide ring is connected with a concentrated liquid guide splicing box, and the two sides of the concentrated liquid guide splicing box are both provided with inclined atomizing nozzles.

[0013] Preferably, the outer side of the internal liquid guide square tube is closely attached between the internal rubber protective layer and the inner side of the external rubber protective layer, and the end of the external liquid supply pipe is connected with the external conveying pipeline through the pipeline.

[0014] Preferably, the end portions of the plurality of internal liquid guide square tubes are fixedly connected with a ring-shaped liquid guide circular tube, and the bottom end of the ring-shaped liquid guide circular tube is fixedly connected with an external liquid supply pipe.

[0015] The outer two sides of the splicing buckle box are both provided with side circular arc clamping grooves, and the internal circular arc clamping grooves are tightly bundled with an insulating bundled annular belt.

[0016] Preferably, the inner cavity of the splicing buckle box is in communication with the inner cavity of the internal liquid guide square tube through the pipeline, the end portions of the splicing buckle box are tightly clamped, and the inner side of the insulating bundled annular belt is closely attached to the outer side of the side circular arc clamping groove.

[0017] Preferably, the side of the internal circular arc guide ring is closely and slidingly attached to the inner side of the liquid guide ring-shaped box, and the end portions of the internal circular arc guide ring and the concentrated liquid guide splicing box are closely attached.

[0018] Preferably, the inner side of the external rubber bundled layer is provided with an internal multi-chamber extrusion reset mechanism, which is used for flexibly supporting the internal structure of the cable to make the cable have sufficient deformation space after being extruded from the outside.

[0019] The internal multi-chamber extrusion reset mechanism comprises an internal polygonal rubber tube.

[0020] The inner side of the internal polygonal rubber tube is provided with a center hollow sleeve.

[0021] The internal end of the center hollow sleeve is filled with an internal telescopic rubber sleeve, and the internal end of the internal telescopic rubber sleeve is bonded with a telescopic buffer sleeve.

[0022] The internal end of the telescopic buffer sleeve is fixedly connected with a flexible deformation spring, and the end of the flexible deformation spring is fixedly connected with a hard guide disc at the position corresponding to the end of the telescopic buffer sleeve.

[0023] The end extrusion liquid bag is fixedly connected with a center connecting silica gel strip at the middle of the end face.

[0024] The side surface of the end extrusion liquid bag is fixedly connected with a side fan-shaped liquid bag through a connecting pipeline in the circumferential direction, the inside of the end extrusion liquid bag is filled with a center support rubber block, and the inside of the side fan-shaped liquid bag is filled with a fan-shaped sponge block.

[0025] The side surface of the end extrusion liquid bag is fixedly connected with a side fan-shaped liquid bag through a connecting pipeline in the circumferential direction, the inside of the end extrusion liquid bag is filled with a center support rubber block, and the inside of the side fan-shaped liquid bag is filled with a fan-shaped sponge block.

[0026] Preferably, the end of the telescopic buffer sleeve is fixedly connected with the end of the internal telescopic rubber sleeve, the end of the telescopic buffer sleeve is fixedly connected with the side surface of the hard guide disc, and the side surface of the hard guide disc is tightly and slidably attached to the inner wall of the center hollow sleeve.

[0027] Preferably, the inside of the extrusion liquid bag and the side fan-shaped liquid bag is filled with heat-conducting oil, the side fan-shaped liquid bag is located inside the flexible buffer air bag, and the outside of the side fan-shaped liquid bag is tightly and slidably attached to the inner wall of the flexible buffer air bag.

[0028] Preferably, the inside of the extrusion liquid bag and the side fan-shaped liquid bag is filled with heat-conducting oil, the side fan-shaped liquid bag is located inside the flexible buffer air bag, and the outside of the side fan-shaped liquid bag is tightly and slidably attached to the inner wall of the flexible buffer air bag.

[0029] The outer layer polygonal vibration damping mechanism comprises a fan-shaped installation guide groove.

[0030] The position between the inner rubber protective layer and the outer rubber protective layer is uniformly and equidistantly provided with a fan-shaped installation guide groove in the circumferential direction, and the fan-shaped installation guide groove is uniformly and equidistantly clamped with a fan-shaped installation box in the axial direction.

[0031] The fan-shaped installation boxes are fixedly connected with a connecting fan-shaped rubber block.

[0032] Both ends of the fan-shaped installation box are adhesively connected with an internal elastic air bag, and the inner side of the fan-shaped installation box is slidably clamped with an isolation sliding frame.

[0033] The inner side of the isolation sliding frame is fixedly connected with an axial elastic limiting belt at both ends of the middle part, and the two axial elastic limiting belts are fixedly connected with a counterweight ball, and the elastic fan-shaped belts are fixedly connected to the middle part of both sides of the counterweight ball.

[0034] The fan-shaped mounting box and the connecting fan-shaped rubber block are preferably tightly attached to the inner wall of the fan-shaped mounting guide groove, the outer side of the isolation sliding frame is tightly and slidingly attached to the inner wall of the fan-shaped mounting box, and the end of the elastic fan-shaped belt is fixedly connected to the inner side of the isolation sliding frame.

[0035] Compared with the prior art, the application has the advantages that the structure is scientific and reasonable, and the use is safe and convenient.

[0036] 1. The external three-dimensional comprehensive protection mechanism is provided, the mutual cooperation between the components in the external three-dimensional comprehensive protection mechanism optimizes the protection adjustment process of the cable as a whole, the mutual cooperation between the pipelines in the cable and the concentrated liquid guide splicing box and the atomizing spray head enables the cable to replace different spraying solutions according to the use scene during use, ensures that antifreezing agents are sprayed in cold weather to prevent ice from condensing on the outside of the cable, cooling agents are sprayed in hot weather to cool the outside of the cable, and fire retardant agents are actively sprayed to the periphery to extinguish and retard fire when a fire occurs around the cable, and thus the cable can be protected by spraying different functional solutions when used in different environments, thereby effectively improving the environmental adaptability of the cable.

[0037] Meanwhile, the splicing type structure design of the splicing buckle box and the liquid guide ring box improves the convenience of installation of the components on the outside of the cable, ensures that the components on the outside of the cable can be quickly replaced during maintenance, the rotating splicing type structure between the concentrated liquid guide splicing box and the atomizing spray head enables the atomizing spray head to automatically rotate during spraying, thereby effectively expanding the spraying range of the solution, preventing dead angles from occurring during spraying of the solution, and further improving the overall protection performance of the cable.

[0038] 2. The internal multi-chamber extrusion reset mechanism is provided, the mutual cooperation between the components in the internal multi-chamber extrusion reset mechanism optimizes the ability of the cable to resist bending deformation and assist in heat dissipation, the soft and hard alternating structure design of the internal center hollow sleeve and the end extrusion liquid bag of the cable enables the cable to preferentially bend from the outside of the internal telescopic rubber sleeve and the flexible buffer air bag when subjected to bending and extrusion, and the multi-layer structure design of the internal telescopic rubber sleeve, the flexible buffer air bag and the center support sleeve effectively improves the flexibility of the cable as a whole, while ensuring that the center conductor does not irreversibly deform during bending, thereby improving the bending resistance and service life of the cable as a whole.

[0039] At the same time, through the cooperation between the end extrusion liquid capsule and the side fan-shaped liquid capsule, the heat conduction performance inside the cable is optimized, and when the resistance of the cable bending part increases and the temperature abnormally rises, the end extrusion liquid capsule and the side fan-shaped liquid capsule can dissipate heat to the cable bending part, thereby effectively improving the stability and heat dissipation performance of the internal structure of the cable.

[0040] 3. The outer polygonal vibration damping mechanism is provided, and through the cooperation between the components in the outer polygonal vibration damping mechanism, the stable adjustment process during the use of the cable is optimized, and through the movable structure design of the components in the fan-shaped mounting box, when the cable vibrates and shakes, the axial elastic limiting belt and the elastic fan-shaped belt can be driven by the counterweight ball to deform elastically, so as to consume and buffer the kinetic energy on the cable through the elastic deformation of the axial elastic limiting belt and the elastic fan-shaped belt, and the internal elastic air bag is compressed and buffered through the isolation sliding frame, thereby effectively relieving the vibration of the cable as a whole, preventing the periodic shaking of the cable from loosening the connection of the cable, and further improving the stability during the use of the cable.

[0041] In summary, through the cooperation between the components in the outer three-dimensional comprehensive protection mechanism, the internal multi-chamber extrusion reset mechanism and the outer polygonal vibration damping mechanism, the compression resistance, shock absorption and protection process during the use of the cable are optimized, so that the cable can still maintain good electrical conductivity and heat dissipation performance after being extruded, bent and deformed, through the movable structure design inside the cable, the kinetic energy during the shaking process of the cable can be consumed and buffered through the buffer compression deformation of the internal structure of the cable, thereby effectively improving the stability of the cable during use, through the design of the external spraying structure of the cable, the environmental resistance of the cable is effectively improved, and the overall use performance of the cable is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application.

[0043] In the drawings:

[0044] Figure 1 is a structural schematic diagram of the present application;

[0045] Figure 2 is a structural schematic diagram of the end surface of the present application;

[0046] Figure 3 is a structural schematic diagram of the fan-shaped mounting box installation of the present application;

[0047] Figure 4 is a structural schematic diagram of the outer three-dimensional comprehensive protection mechanism of the present application;

[0048] Figure 5 is the structure diagram of the internal circular arc guide ring installation of the application;

[0049] Figure 6 is the structure diagram of the internal multi-chamber extrusion reset mechanism of the application;

[0050] Figure 7 is the structure diagram of the hard guide round sheet installation of the application;

[0051] Figure 8 is the structure diagram of the outer layer polygonal vibration damping mechanism of the application;

[0052] Figure 9 is the structure diagram of the counterweight round ball installation of the application;

[0053] Figure label: 1, center conductor; 2, internal rubber insulation layer; 3, external rubber bundling layer; 4, barrier protection layer;

[0054] 5, external three-dimensional comprehensive protection mechanism; 501, internal rubber protection layer; 502, external rubber protection layer; 503, internal liquid guide square tube; 504, annular liquid guide circular tube; 505, external liquid supply tube; 506, splicing buckle box; 507, side circular arc clamping groove; 508, insulating bundling annular belt; 509, liquid guide annular box; 510, internal circular arc guide ring; 511, concentrated liquid guide splicing box; 512, atomizing nozzle;

[0055] 6, internal multi-chamber extrusion reset mechanism; 601, internal polygonal rubber tube; 602, center hollow sleeve; 603, internal telescopic rubber sleeve; 604, telescopic buffer sleeve; 605, flexible deformation spring; 606, hard guide round sheet; 607, end extrusion liquid bag; 608, center connecting silica gel strip; 609, side fan-shaped liquid bag; 610, center support rubber block; 611, fan-shaped sponge block; 612, flexible buffer air bag; 613, center support sleeve;

[0056] 7, outer layer polygonal vibration damping mechanism; 701, fan-shaped installation guide groove; 702, fan-shaped installation box; 703, connecting fan-shaped rubber block; 704, internal elastic air bag; 705, isolation sliding frame; 706, axial elastic limiting belt; 707, counterweight round ball; 708, elastic fan-shaped belt. DETAILED DESCRIPTION

[0057] The preferred embodiments of the application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the application, and are not used to limit the application.

[0058] Embodiment: as Figures 1-9As shown, the present application provides a technical scheme, a high-flexibility low-voltage power cable, comprising a center conductor 1, the outside of the center conductor 1 is tightly covered with an internal rubber insulation layer 2, a plurality of internal rubber insulation layers 2 are collectively covered with an external rubber bundling layer 3, and the outside of the external rubber bundling layer 3 is tightly covered with a barrier protection layer 4;

[0059] The outside of the barrier protection layer 4 is provided with an external three-dimensional comprehensive protection mechanism 5, which is used for comprehensively protecting the outside of the cable to ensure that the cable can adapt to different environments during use and to enhance the resistance of the power cable to the external environment;

[0060] The external three-dimensional comprehensive protection mechanism 5 comprises an internal rubber protection layer 501, an external rubber protection layer 502, an internal liquid guide square tube 503, an annular liquid guide circular tube 504, an external liquid supply tube 505, a splicing buckle box 506, a side circular arc clamping groove 507, an insulating bundling annular belt 508, a liquid guide annular box 509, an internal circular arc guide ring 510, a concentrated liquid guide splicing box 511, and an atomizing spray head 512;

[0061] The outside of the barrier protection layer 4 is covered with the internal rubber protection layer 501, and the outside of the internal rubber protection layer 501 is tightly covered with the external rubber protection layer 502;

[0062] A plurality of internal liquid guide square tubes 503 are uniformly and equidistantly clamped between the internal rubber protection layer 501 and the external rubber protection layer 502 in the circumferential direction, the end portions of the plurality of internal liquid guide square tubes 503 are fixedly connected with the annular liquid guide circular tube 504, the bottom end of the annular liquid guide circular tube 504 is fixedly connected with the external liquid supply tube 505, the outside of the internal liquid guide square tube 503 is tightly attached to the inside of the internal rubber protection layer 501 and the external rubber protection layer 502, and the distal end of the external liquid supply tube 505 is connected with an external delivery pipeline through a pipeline;

[0063] The outside of the external rubber protection layer 502 is equidistantly clamped with the splicing buckle box 506 in the circumferential direction, the two sides of the outside of the splicing buckle box 506 are provided with the side circular arc clamping grooves 507, the internal rubber protection layer 501 and the external rubber protection layer 502 are tightly bundled with the insulating bundling annular belt 508 between the internal rubber protection layer 501 and the external rubber protection layer 502, the inner cavity of the splicing buckle box 506 is in communication with the inner cavity of the internal liquid guide square tube 503 through a pipeline, the end portions of the splicing buckle box 506 are tightly clamped, and the inside of the insulating bundling annular belt 508 is tightly attached to the outside of the side circular arc clamping groove 507;

[0064] The side middle part of the splicing buckle box 506 is provided with the liquid guide annular box 509, and the inner cavity of the liquid guide annular box 509 is slidably clamped with the internal circular arc guide ring 510;

[0065] The middle part of the outer side of the inner circular arc guide ring 510 is fixedly connected with a concentrated liquid guide splicing box 511, and the middle part of the two sides of the concentrated liquid guide splicing box 511 is obliquely embedded and installed with an atomizing nozzle 512. The angle between the central axis of the atomizing nozzle 512 and the side surface of the concentrated liquid guide splicing box 511 is 75 degrees, which ensures that the atomizing nozzle 512 can generate a circumferential direction reaction force during spraying. The side surface of the inner circular arc guide ring 510 is tightly and slidably attached to the inner surface of the liquid guide ring box 509, and the end part of the inner circular arc guide ring 510 and the concentrated liquid guide splicing box 511 are tightly attached. Through the mutual cooperation between the internal components of the external three-dimensional comprehensive protection mechanism 5, the overall protection adjustment process of the cable is optimized. Through the mutual cooperation between the internal pipelines of the cable and the concentrated liquid guide splicing box 511 and the atomizing nozzle 512, the cable can be replaced with different spraying solutions according to the use scene during use, which ensures that antifreeze is sprayed in cold weather to prevent ice from condensing on the outside of the cable, coolant is sprayed in hot weather to cool the outside of the cable, and fire retardant is actively sprayed around the cable to extinguish and retard fire when a fire occurs around the cable. Then, by optimizing the external structure of the cable, the cable can be protected by spraying different functional solutions when used in different environments, thereby effectively improving the environmental adaptability of the cable.

[0066] At the same time, through the splicing type structure design of the splicing buckle box 506 and the liquid guide ring box 509, the convenience of installing the components on the outside of the cable is improved, and the external components of the cable can be quickly replaced during maintenance. Through the rotating splicing structure between the concentrated liquid guide splicing box 511 and the atomizing nozzle 512, the atomizing nozzle 512 can automatically rotate during spraying, thereby effectively expanding the spraying range of the solution, preventing dead angles during spraying, and further improving the overall protection performance of the cable.

[0067] The inside of the outer rubber bundling layer 3 is provided with an internal multi-chamber extrusion reset mechanism 6, which is used to flexibly support the internal structure of the cable to provide sufficient deformation space for the cable after being extruded from the outside.

[0068] The internal multi-chamber extrusion reset mechanism 6 includes an internal polygonal rubber tube 601, a center hollow sleeve 602, an internal telescopic rubber sleeve 603, a telescopic buffer sleeve 604, a flexible deformation spring 605, a hard guide disc 606, an end extrusion liquid chamber 607, a center connecting silica gel strip 608, a side fan-shaped liquid chamber 609, a center support rubber block 610, a fan-shaped sponge block 611, a flexible buffer air bag 612, and a center support sleeve 613.

[0069] The middle part of the inside of the outer rubber bundling layer 3 is provided with an internal polygonal rubber tube 601, and the middle part of the inside of the internal polygonal rubber tube 601 is inserted and installed with a center hollow sleeve 602.

[0070] The inner end of the central hollow sleeve 602 is filled with an inner telescopic rubber sleeve 603, and the inner end of the inner telescopic rubber sleeve 603 is bonded with a telescopic buffer sleeve 604;

[0071] The inner end of the telescopic buffer sleeve 604 is fixedly connected with a flexible deformation spring 605, one end of the flexible deformation spring 605 is fixedly connected with a hard guide disc 606 corresponding to the end position of the telescopic buffer sleeve 604, the end of the telescopic buffer sleeve 604 is fixedly connected with the end of the inner telescopic rubber sleeve 603, the end of the telescopic buffer sleeve 604 is fixedly connected with the side of the hard guide disc 606, and the side of the hard guide disc 606 is tightly and slidably attached to the inner wall of the central hollow sleeve 602;

[0072] The end of the central hollow sleeve 602 is fixedly connected with an end extrusion liquid chamber 607 corresponding to the end position of the inner polygonal rubber tube 601, and the end surface of the end extrusion liquid chamber 607 is fixedly connected with a central connecting silica gel strip 608;

[0073] The side of the end extrusion liquid chamber 607 is fixedly connected with a side fan-shaped liquid chamber 609 through a connecting pipeline in the circumferential direction, the end extrusion liquid chamber 607 is filled with a central support rubber block 610, and the side fan-shaped liquid chamber 609 is filled with a fan-shaped sponge block 611;

[0074] The side of the inner telescopic rubber sleeve 603 is fixedly connected with a flexible buffer air bag 612 through a pipeline in the circumferential direction outside the inner polygonal rubber tube 601, the one end of the flexible buffer air bag 612 is embeddedly installed with a central support sleeve 613, the end extrusion liquid chamber 607 and the side fan-shaped liquid chamber 609 are both filled with heat-conducting oil, the side fan-shaped liquid chamber 609 is located inside the flexible buffer air bag 612, and the outside of the side fan-shaped liquid chamber 609 is tightly and slidably attached to the inner wall of the flexible buffer air bag 612, the mutual cooperation between the components inside the inner multi-chamber extrusion reset mechanism 6 optimizes the ability of the cable to resist bending deformation and auxiliary heat dissipation, the soft and hard alternating structure design of the central hollow sleeve 602 and the end extrusion liquid chamber 607 inside the cable makes the cable preferentially bend from the outside of the inner telescopic rubber sleeve 603 and the flexible buffer air bag 612 when subjected to bending and extrusion, and the multi-layer structure design of the inner telescopic rubber sleeve 603, the flexible buffer air bag 612 and the central support sleeve 613 effectively improves the flexibility of the cable as a whole, while ensuring that the central conductor 1 does not irreversibly deform during bending, thereby improving the bending resistance and service life of the cable as a whole;

[0075] Meanwhile, the heat conduction performance inside the cable is optimized through the cooperation between the end extrusion liquid bag 607 and the side fan-shaped liquid bag 609, so that when the resistance of the cable bending part increases and the temperature abnormally rises, the cable bending part can be cooled by the end extrusion liquid bag 607 and the side fan-shaped liquid bag 609, thereby effectively improving the stability and heat dissipation performance of the internal structure of the cable.

[0076] The outer polygonal vibration damping mechanism 7 is arranged between the inner rubber protection layer 501 and the outer rubber protection layer 502, and is used to transfer the kinetic energy received by the cable outside to reduce the swing amplitude of the cable during use.

[0077] The outer polygonal vibration damping mechanism 7 includes a fan-shaped mounting guide groove 701, a fan-shaped mounting box 702, a connecting fan-shaped rubber block 703, an internal elastic air bag 704, an isolation sliding frame 705, an axial elastic limiting belt 706, a counterweight ball 707 and an elastic fan-shaped belt 708.

[0078] The fan-shaped mounting guide grooves 701 are evenly and equidistantly arranged along the circumferential direction between the inner rubber protection layer 501 and the outer rubber protection layer 502, and the fan-shaped mounting boxes 702 are axially and equidistantly clamped inside the fan-shaped mounting guide grooves 701.

[0079] The connecting fan-shaped rubber blocks 703 are fixedly connected between the fan-shaped mounting boxes 702.

[0080] The internal elastic air bags 704 are adhered to both ends of the fan-shaped mounting boxes 702, and the isolation sliding frames 705 are slidingly clamped to the inner middle part of the fan-shaped mounting boxes 702.

[0081] The middle of the two ends of the isolation sliding frame 705 is fixedly connected with an axial elastic limiting belt 706, the two axial elastic limiting belts 706 are fixedly connected with a counterweight ball 707, the middle of the two sides of the counterweight ball 707 is fixedly connected with an elastic sector-shaped belt 708, the outer side of the sector-shaped mounting box 702 and the connecting sector-shaped rubber block 703 is tightly attached to the inner wall of the sector-shaped mounting guide groove 701, the outer side of the isolation sliding frame 705 is tightly and slidingly attached to the inner wall of the sector-shaped mounting box 702, the end of the elastic sector-shaped belt 708 is fixedly connected with the inner side of the isolation sliding frame 705, through the mutual cooperation between the internal components of the outer layer polygonal vibration damping mechanism 7, the stable adjustment process of the cable during use is optimized, through the movable structure design of the internal components of the sector-shaped mounting box 702, when the cable vibrates and shakes, the axial elastic limiting belt 706 and the elastic sector-shaped belt 708 can be driven by the counterweight ball 707 to elastically deform, so that the kinetic energy on the cable is consumed and buffered through the elastic deformation of the axial elastic limiting belt 706 and the elastic sector-shaped belt 708, and the internal elastic air bag 704 is compressed and buffered through the isolation sliding frame 705, thereby effectively relieving the vibration of the whole cable, preventing the loosening of the cable connection caused by the periodic shaking of the cable, and further improving the stability of the cable during use.

[0082] The working principle and use process of the present application: in the actual application process, the center conductor 1 needs to be connected to a suitable position during the use of the power cable, the outer side of the center conductor 1 is preliminarily protected by the internal rubber insulation layer 2, then the outer side of the plurality of internal rubber insulation layers 2 is bundled and limited by the external rubber bundling layer 3, and the outer side of the cable is isolated and protected by the barrier protection layer 4.

[0083] When active protection is needed on the outer side of the cable, double-layer protection is performed on the outer side of the cable through the cooperation between the internal rubber protection layer 501 and the external rubber protection layer 502 to improve the protection performance of the whole outer side of the cable, then the external functional solution is introduced into the annular liquid guide pipe 504 through the external liquid supply pipe 505, and the solution is introduced into the internal liquid guide square pipe 503 through the annular liquid guide pipe 504;

[0084] The solution is introduced into the liquid guide annular box 509 on the side of the corresponding splicing buckle box 506 through the internal liquid guide square pipe 503, the solution is introduced into the corresponding concentrated liquid splicing box 511 through the liquid guide annular box 509, and finally the functional solution is sprayed to the outer side of the cable through the atomizing nozzle 512 on the side of the concentrated liquid splicing box 511, and the solution can be attached to the outer side of the cable, wherein antifreeze is sprayed in cold weather to prevent ice from condensing on the outside of the cable, coolant is sprayed in hot weather to cool the outer side of the cable, and fire retardant is actively sprayed to the surrounding area to extinguish the fire when a fire occurs around the cable;

[0085] And the cooperation between the side arc slot 507 and the insulating bundled ring belt 508, the splicing buckle box 506 is clamped to the outside of the cable in a circular ring structure, to ensure that the structure outside the cable can be installed smoothly and quickly, and the atomizing nozzle 512 is installed at an angle, so that an opposite force acting on the outside of the concentrated liquid guide splicing box 511 in the circumferential direction is generated during the spraying of the atomizing nozzle 512, and then the concentrated liquid guide splicing box 511 and the atomizing nozzle 512 are driven to rotate under the guidance of the liquid guide ring box 509 and the internal arc guide ring 510, thereby effectively expanding the spraying range of the atomizing nozzle 512;

[0086] During the use of the cable, when the cable is subjected to extrusion and bending, the central hollow sleeve 602 and the components thereon are installed inside the cable through the internal polygonal rubber pipe 601, and the end part of the extrusion liquid bag 607 is connected through the central connecting silica gel strip 608, so as to ensure that the components inside the external rubber bundled layer 3 have sufficient supporting force;

[0087] Then when the cable is bent and deformed, the central hollow sleeve 602 and the flexible buffer air bag 612 are preferentially elastically deformed, the central hollow sleeve 602 is extruded and deformed, the internal pressure of the central hollow sleeve 602 rises, the hard guide disc 606 drives the flexible deformation spring 605 to compress and store energy under the action of the internal pressure of the central hollow sleeve 602, and the hard guide disc 606 returns to its original position after the external extrusion force on the cable is removed;

[0088] At the same time, when the flexible buffer air bag 612 is extruded and bent, the central support sleeve 613 is preferentially bent to disperse the external extrusion force through the compression and bending deformation of the central support sleeve 613, and the central conductor 1 can be displaced in a small range through the deformation of the flexible buffer air bag 612, effectively preventing irreversible deformation and damage of the central conductor 1 when the cable is deformed externally;

[0089] At the same time, when the internal polygonal rubber pipe 601 and the flexible buffer air bag 612 are extruded and deformed, the end extrusion liquid bag 607 and the side fan-shaped liquid bag 609 are deformed synchronously, and the heat conducting oil inside the end extrusion liquid bag 607 and the side fan-shaped liquid bag 609 is exchanged and flows during the deformation of the end extrusion liquid bag 607 and the side fan-shaped liquid bag 609, and the central support rubber block 610 and the fan-shaped sponge block 611 support the inside of the end extrusion liquid bag 607 and the side fan-shaped liquid bag 609, thereby directing the heat inside the central conductor 1 through the exchange of the heat conducting oil inside the end extrusion liquid bag 607 and the side fan-shaped liquid bag 609, ensuring that the cable bending part also has good heat conduction performance;

[0090] When the cable is subjected to high-frequency periodic shaking, the fan-shaped mounting box 702 and its internal components are mounted to the outer layer area of the cable through the fan-shaped mounting guide groove 701, and the fan-shaped mounting boxes 702 are connected and fixed through the connecting fan-shaped rubber block 703, then when the cable is shaken, the kinetic energy of the cable drives the isolation sliding frame 705 to slide along the inside of the fan-shaped mounting box 702, and the internal elastic air bag 704 is extruded and deformed in the process of sliding of the isolation sliding frame 705, and then the axial force of the cable is consumed and buffered by the compression deformation of the internal elastic air bag 704;

[0091] When the cable is subjected to transverse shaking, the counterweight ball 707 is driven to swing transversely when the isolation sliding frame 705 is subjected to transverse shaking, and the axial elastic limiting belt 706 and the elastic fan-shaped belt 708 are driven to swing irregularly in the process of swinging of the counterweight ball 707, and then the inertia generated by the swinging of the counterweight ball 707 is offset by the shaking of the cable, thereby reducing the burden of the cable shaking and effectively improving the stability of the cable during use.

[0092] Finally, it should be noted that: the above only for the preferred examples of the present application, and not for limiting the present application, although the present application is described in detail with reference to the foregoing examples, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-flexibility low-voltage power cable comprising a central conductor (1), characterized in that: The center conductor (1) is tightly covered by an inner rubber insulation layer (2), a plurality of the inner rubber insulation layers (2) are collectively covered by an outer rubber bundling layer (3), and the outer rubber bundling layer (3) is covered by a barrier protection layer (4) on the outside; The barrier protection layer (4) is provided with an external three-dimensional comprehensive protection mechanism (5) on the outside, which is used for comprehensive protection of the outside of the cable to ensure that the cable can adapt to different environments during use and to enhance the resistance of the power cable to the external environment; The external three-dimensional comprehensive protection mechanism (5) comprises an inner rubber protection layer (501); The barrier protection layer (4) is sequentially covered by an inner rubber protection layer (501) and an outer rubber protection layer (502) on the outside; An inner liquid guide square tube (503) is arranged between the inner rubber protection layer (501) and the outer rubber protection layer (502); The outer rubber protection layer (502) is clamped with a splicing buckle box (506) on the outside; The splicing buckle box (506) is provided with a liquid guide annular box (509) on the side, and the inner cavity of the liquid guide annular box (509) is provided with an inner circular arc guide ring (510); The inner circular arc guide ring (510) is connected with a concentrated liquid guide splicing box (511) on the outside, and the two sides of the concentrated liquid guide splicing box (511) are both provided with an atomizing nozzle (512) in an inclined manner; A plurality of the inner liquid guide square tubes (503) are fixedly connected with a ring-shaped liquid guide circular tube (504) at the end, and the bottom end of the ring-shaped liquid guide circular tube (504) is fixedly connected with an outer liquid supply pipe (505); The splicing buckle box (506) is provided with a side circular arc clamping groove (507) on the outside, and a plurality of the side circular arc clamping grooves (507) are tightly bundled with an insulating bundling annular belt (508) inside; The inner liquid guide square tube (503) is tightly attached between the inner rubber protection layer (501) and the outer rubber protection layer (502) on the inside, and the end of the outer liquid supply pipe (505) is connected with an external conveying pipeline through a pipeline; The inner cavity of the splicing buckle box (506) is in communication with the inner cavity of the inner liquid guide square tube (503) through a pipeline, the ends of the splicing buckle box (506) are tightly clamped, and the inner side of the insulating bundling annular belt (508) is tightly attached to the outside of the side circular arc clamping groove (507).

2. A high-flexibility low-voltage power cable according to claim 1, characterized in that The inner circular arc guide ring (510) is tightly attached between the side of the inner circular arc guide ring (510) and the inner side of the liquid guide annular box (509), and the ends of the inner circular arc guide ring (510) and the concentrated liquid guide splicing box (511) are tightly attached.

3. A high-flexibility low-voltage power cable according to claim 1, characterized in that The inner side of the outer rubber bundling layer (3) is provided with an inner multi-chamber extrusion reset mechanism (6), which is used for flexible support of the internal structure of the cable to provide sufficient deformation space for the cable after being extruded from the outside; The inner multi-chamber extrusion reset mechanism (6) comprises an inner polygonal rubber tube (601). The middle part of the inner side of the outer rubber bundle layer (3) is provided with an internal polygonal rubber tube (601), and the middle part of the inner side of the internal polygonal rubber tube (601) is provided with a center hollow sleeve (602); The internal end of the center hollow sleeve (602) is filled with an internal telescopic rubber sleeve (603), and the internal end of the internal telescopic rubber sleeve (603) is bonded with a telescopic buffer sleeve (604); The internal end of the telescopic buffer sleeve (604) is fixedly connected with a flexible deformation spring (605), and the end of the flexible deformation spring (605) is fixedly connected with a hard guide disc (606) corresponding to the end part position of the telescopic buffer sleeve (604); The end part of the center hollow sleeve (602) is fixedly connected with an end part extrusion liquid bag (607) corresponding to the end part position of the internal polygonal rubber tube (601), and the end surface middle part of the end part extrusion liquid bag (607) is fixedly connected with a center connecting silica gel strip (608); The side surface of the end part extrusion liquid bag (607) is fixedly connected with a side surface sector liquid bag (609) through a connecting pipeline in the circumferential direction, the internal part of the end part extrusion liquid bag (607) is filled with a center support rubber block (610), and the internal part of the side surface sector liquid bag (609) is filled with a sector sponge block (611); The side surface of the internal telescopic rubber sleeve (603) is fixedly connected with a flexible buffer air bag (612) through a pipeline in the circumferential direction outside the internal polygonal rubber tube (601), and the end middle part of the flexible buffer air bag (612) is embeddedly installed with a center support sleeve (613).

4. A high-flexibility low-voltage power cable according to claim 3, characterized in that The end part of the telescopic buffer sleeve (604) and the end part of the internal telescopic rubber sleeve (603) are fixedly connected, the end part of the telescopic buffer sleeve (604) and the side surface of the hard guide disc (606) are fixedly connected, and the side surface of the hard guide disc (606) and the inner wall of the center hollow sleeve (602) are closely and slidably attached.

5. A high-flexibility low-voltage power cable according to claim 3, characterized in that The internal parts of the extrusion liquid bag (607) and the side surface sector liquid bag (609) are filled with heat-conducting oil, the side surface sector liquid bag (609) is located inside the flexible buffer air bag (612), and the outer side of the side surface sector liquid bag (609) and the inner wall of the flexible buffer air bag (612) are closely and slidably attached.

6. A high-flexibility low-voltage power cable according to claim 1, characterized in that The position between the internal rubber protection layer (501) and the external rubber protection layer (502) is provided with an outer layer polygonal vibration damping mechanism (7), which is used for transferring the kinetic energy suffered by the cable outside to reduce the swing amplitude of the cable in the use process; The outer layer polygonal vibration damping mechanism (7) comprises a sector-shaped installation guide groove (701); The position between the internal rubber protection layer (501) and the external rubber protection layer (502) is provided with a sector-shaped installation guide groove (701) which is evenly and equidistantly opened in the circumferential direction, and the sector-shaped installation guide groove (701) is evenly and equidistantly clamped with a sector-shaped installation box (702) in the axial direction; The sector-shaped installation boxes (702) are fixedly connected with a connecting sector-shaped rubber block (703); Both ends of the fan-shaped mounting box (702) are adhered with internal elastic air bags (704), and the inside of the fan-shaped mounting box (702) is slidably connected with a separation sliding frame (705) in the middle part; Both ends of the fan-shaped mounting box (702) are adhered with internal elastic air bags (704), and the inside of the fan-shaped mounting box (702) is slidably connected with a separation sliding frame (705) in the middle part; 7. A high-flexibility low-voltage power cable according to claim 6, c h a r a c t e r i s e d in that The outside of the fan-shaped mounting box (702) and the connecting fan-shaped rubber block (703) are tightly attached to the inner wall of the fan-shaped mounting guide groove (701), the outside of the separation sliding frame (705) is tightly and slidably attached to the inner wall of the fan-shaped mounting box (702), and the end of the elastic fan-shaped belt (708) is fixedly connected with the inside of the separation sliding frame (705).

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