CN114649111A

CN114649111A - Flame-retardant high-temperature-resistant flexible cable

Info

Publication number: CN114649111A
Application number: CN202210286150.8A
Authority: CN
Inventors: 黄卫南; 欧恩洪; 林伟东
Original assignee: Heyuan Jianbao Cable Co ltd
Current assignee: Heyuan Jianbao Cable Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-06-21

Abstract

The invention discloses a flame-retardant high-temperature-resistant flexible cable, which belongs to the technical field of flexible cables and comprises an inner fixed tube, wherein a fixed ring is uniformly and fixedly arranged on the outer side of the inner fixed tube, an inner conductor is fixedly inserted in the middle of the inner part of the fixed ring, flame-retardant powder is coated on the outer side of the inner fixed tube, an air bag is uniformly embedded and arranged between the flame-retardant powder, an outer protective layer is coated and arranged on the outer side of a dustproof net layer, the air bag is heated to expand and break when the flame-retardant flexible cable burns by adopting the flame-retardant powder and the air bag, so that the flame-retardant powder is broken to play a flame-retardant effect, external air can conveniently flow into the inner fixed tube through a vent tube and a flow deflector, the heat dissipation of the inner fixed tube is further facilitated, the heat dissipation efficiency is improved, the high-temperature-resistant effect is improved, the high-temperature-resistant performance of the flexible cable is improved through a cooling tube with cooling liquid, and the overhigh temperature is avoided, the application range and the use safety are improved, and the use is convenient.

Description

Flame-retardant high-temperature-resistant flexible cable

Technical Field

The invention relates to a cable, in particular to a flame-retardant high-temperature-resistant flexible cable, and belongs to the technical field of flexible cables.

Background

The flexible cable is the first choice cable of power transmission material, signal transmission carrier in the drag chain motion system, the another name: tow chain cable, tow the cable, the movable cable, robot cable etc, flexible cable's sheath adopts low stickness more, flexible wear-resisting material, in order to slow down the cable wear rate in the continuous round trip movement, and along with the development of modernization equipment, more and more flexible cable obtains extensive use, but some flexible electrical property now, when using, because internal power is great, can produce great heat, present flexible cable radiating effect is relatively poor, can't in time disperse the heat that produces, lead to the heat to pile up, produce the spontaneous combustion easily, and after the spontaneous combustion, flame retardant efficiency is lower, cause huge loss easily, inconvenient use.

Disclosure of Invention

The invention aims to solve the problems, and provides a flame-retardant high-temperature-resistant flexible cable which can conveniently dissipate heat generated in time, reduce the spontaneous combustion phenomenon, and can automatically extinguish fire and reduce loss when spontaneous combustion occurs.

The invention achieves the aim through the following technical scheme, and the flame-retardant high-temperature-resistant flexible cable comprises inner fixing tubes, wherein fixing rings are uniformly and fixedly installed on the outer sides of the inner fixing tubes, inner conductors are fixedly installed in the middle of the inner parts of the fixing rings in an inserted mode, the number of the inner conductors is three, the inner conductors are distributed in a circumferential equal ratio mode, the number of the fixing rings is three, the fixing rings are distributed on the inner fixing tubes at equal intervals, flame-retardant powder is coated on the outer sides of the inner fixing tubes, air bag packages are uniformly embedded and installed between the flame-retardant powder, woven layers are coated on the outer sides of the flame-retardant powder, dustproof net layers are coated and installed on the outer sides of the dustproof net layers, cooling tubes containing cooling liquid are uniformly embedded and installed inside the outer protection layers, and the air bag packages and the cooling tubes are distributed in a staged mode on the inner side of the flame-retardant powder and the inner side of the outer protection layers respectively The inner fixing pipe is internally provided with a through hole, a reinforcing rib is embedded and installed in the through hole and consists of a reinforcing wire and a flow deflector, the flow deflector is spirally and fixedly installed on the outer side of the reinforcing wire, the reinforcing wire is fixedly installed in the through hole through the flow deflector, when the inner fixing pipe is used, the tensile resistance of the inner fixing pipe is improved through the reinforcing rib, the reinforcing rib consists of the reinforcing wire and the flow deflector, when external air enters the inner fixing pipe, the flow of the inner fixing pipe is facilitated through the flow deflector, the efficiency of heat dissipation of the inner fixing pipe is further improved, the heat dissipation is facilitated, the temperature accumulation of the inner fixing pipe is avoided, the use safety is further improved, and when the inner fixing pipe burns, the airbag package is heated and expands to break, the airbag bag is made to collapse the flame-retardant powder, the external combustion part is extinguished through the flame-retardant powder, the flame-retardant performance is improved, more serious loss during combustion is avoided, and the cooling pipe containing cooling liquid is embedded and installed inside the outer protection layer, so that when the airbag bag is heated, the cooling pipe absorbs external heat, the efficiency of inward heat conduction is reduced, and the high-temperature resistance is improved.

Preferably, in order to facilitate the heat dissipation of the heat generated by the inner conductor during use, the outer surface of the inner fixing tube is uniformly and fixedly provided with a heat conducting rod, the fixing ring is fixedly arranged at the other end of the heat conducting rod, the fixing ring is in heat conduction with the inner fixing tube through the heat conducting rod, the outer surface of the inner fixing tube is positioned between the fixing rings and is uniformly and fixedly provided with a vent tube, the vent tube is communicated with the through hole, an arc-shaped groove is uniformly formed between the vent tube and the fixing ring on the flame-retardant powder, the airbag package is embedded and arranged in the arc-shaped groove, the flame-retardant powder and the outer protective layer are uniformly provided with through holes, one end of the vent tube extends into the through holes on the flame-retardant powder, and the other end of the vent tube is in contact with the woven layer and the dustproof mesh layer, one end of the breather pipe is communicated with the outside through the through hole on the outer protective layer, a groove is arranged at the position of the outer protective layer, which is positioned at the through hole, a convex strip is uniformly and fixedly arranged between the grooves on the outer protective layer, a blind hole is uniformly arranged inside the convex strip, the cooling pipe is inserted inside the blind hole, the outside air and the air inside the through hole can conveniently flow through the breather pipe, the heat generated by the inner conductor in use is conducted to the inner fixed pipe through the fixed ring and the heat conducting rod, the heat is conveniently taken away by the flowing air, the heat generated on the inner conductor is further conveniently dissipated, the heat accumulation is avoided, the use is convenient, and the woven layer and the dustproof mesh layer are passed through, external impurities are prevented from entering the inside of the through hole.

Preferably, in order to protect the invention and improve the wear resistance, the outer protective layer comprises an oxygen-isolating layer, an insulating layer, a reinforcing mesh layer, a heat-insulating layer and a polyvinyl chloride layer, the outer protective layer is fixedly arranged on the outer surface of the dustproof net layer through the oxygen isolation layer, the insulating layer is fixedly arranged on the outer surface of the oxygen isolation layer in a wrapping manner, the reinforced net layer is fixedly arranged on the outer surface of the insulating layer in a wrapping mode, the heat insulating layer is arranged on the outer surface of the reinforced net layer in a wrapping mode, the polyvinyl chloride layer is fixedly arranged on the outer surface of the reinforced net layer in a wrapping mode, the service life and the use safety of the invention are improved through the oxygen isolating layer and the insulating layer, and the anti-stretching effect in use is improved through the reinforced net layer, and the wear resistance and the service life of the anti-stretching anti-abrasion wear-resistant PVC composite material are improved through the PVC layer.

Preferably, in order to protect the inner conductor, the inner conductor is composed of a wire core, a mica powder layer, an inner liner layer, a shielding layer and an inner protective layer, the wire core is in a bundle-shaped structure, the inner liner layer is coated on the outer side of the bundle-shaped structure formed by the wire core, the mica powder layer is filled in a gap between the wire core and the inner liner layer, the shielding layer is coated on the outer side of the inner liner layer, the inner protective layer is coated on the outer side of the shielding layer, the inner protective layer is composed of a flame-retardant layer, a nylon net layer, a rubber layer and a heat-conducting silica gel layer, the inner protective layer is coated on the outer side of the shielding layer through the flame-retardant layer, the nylon net layer is coated on the outer side of the flame-retardant layer, the rubber layer is coated on the outer side of the nylon net layer, and the heat-conducting silica gel layer is coated on the outer side of the rubber layer, the inner conductor is fixedly installed inside the fixing ring through the heat-conducting silica gel sheet layer, electric energy transmission is facilitated through the wire core, the flame-retardant effect on the wire core is improved through the mica powder layer, the anti-interference effect of the anti-interference heat dissipation device is improved through the inner liner layer and the shielding layer, the wire core is protected conveniently through the nylon net layer, the flame-retardant layer and the rubber layer, heat on the inner conductor is conducted to the fixing ring conveniently through the heat-conducting silica gel sheet layer, and heat dissipation is facilitated.

The beneficial effects of the invention are: according to the invention, the flame-retardant powder and the air bag package are adopted, when combustion is generated, the air bag package is heated to expand and break, so that the flame-retardant powder is broken up to play a flame-retardant effect, external air can conveniently flow into the inner fixing pipe through the vent pipe and the flow deflector, the heat dissipation of the inner fixing pipe is further facilitated, the heat dissipation efficiency is improved, the high-temperature resistant effect is improved, the high-temperature resistance of the air bag is improved through the cooling pipe with the cooling liquid, the overhigh temperature is avoided, the use range and the use safety are improved, and the air bag package is convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the tip of the present invention.

Fig. 3 is a partial structural view of the end portion of the present invention.

Fig. 4 is an end view of the present invention.

Fig. 5 is a schematic view showing the overall structure of the inner fixing tube according to the present invention.

FIG. 6 is a schematic structural diagram of an outer protective layer according to the present invention.

FIG. 7 is a schematic structural diagram of an inner passivation layer according to the present invention.

In the figure: 1. the inner fixing tube, 2, a fixing ring, 3, an inner conductor, 31, a wire core, 32, a mica powder layer, 33, an inner lining layer, 34, a shielding layer, 35, an inner protection layer, 351, a flame-retardant layer, 352, a nylon net layer, 353, a rubber layer, 354, a heat-conducting silica gel layer, 4, flame-retardant powder, 5, an air bag package, 6, a woven layer, 7, a dustproof net layer, 8, an outer protection layer, 81, an oxygen isolation layer, 82, an insulating layer, 83, a reinforced net layer, 84, a heat insulation layer, 85, a polyvinyl chloride layer, 9, a cooling tube, 10, a through hole, 11, a reinforcing rib, 111, a reinforcing wire, 112, a flow deflector, 12, a heat-conducting rod, 13, a vent pipe, 14, an arc-shaped groove, 15, a through hole, 16, a groove, 17, a convex strip, 18 and a blind hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a flame-retardant high-temperature-resistant flexible cable comprises an inner fixing tube 1, wherein fixing rings 2 are uniformly and fixedly installed on the outer side of the inner fixing tube 1, inner conductors 3 are fixedly installed in the middle of the inner portion of the fixing rings 2 in an inserted manner, the number of the inner conductors 3 is three, the inner conductors 3 are distributed in a circumferential equal ratio manner, the fixing rings 2 are three groups, the fixing rings 2 are distributed on the inner fixing tube 1 in an equidistant manner, flame-retardant powder 4 is coated on the outer side of the inner fixing tube 1, an air bag package 5 is uniformly embedded and installed between the flame-retardant powder 4, a woven layer 6 is coated on the outer side of the flame-retardant powder 4, a dustproof mesh layer 7 is coated and installed on the outer side of the dustproof mesh layer 7, an outer protective layer 8 is coated and installed on the inner side of the outer protective layer 8, a cooling tube 9 containing cooling liquid is uniformly embedded and installed inside the outer protective layer 8, the air bag package 5 and the cooling tube 9 are respectively distributed inside the flame-retardant powder 4 and the outer protective layer 8 in a stepwise manner, the through hole 10 is arranged in the inner fixing pipe 1, the reinforcing rib 11 is embedded in the through hole 10, the reinforcing rib 11 is composed of a reinforcing wire 111 and a flow deflector 112, the flow deflector 112 is spirally and fixedly arranged on the outer side of the reinforcing wire 111, the reinforcing wire 111 is fixedly arranged in the through hole 10 through the flow deflector 112, when the air bag is used, the tensile resistance of the air bag is improved through the reinforcing rib 11, the reinforcing rib 11 is composed of the reinforcing wire 111 and the flow deflector 112, when external air enters the inner fixing pipe 1, the air can flow through the flow deflector 112 conveniently, the heat dissipation efficiency of the inner part of the air bag is improved, the heat dissipation is convenient, the temperature accumulation of the inner part of the air bag is avoided, the use safety is improved, and through the flame-retardant powder 4 and the air bag 5, when the air bag is burnt, the air bag 5 is heated and expands to break, and the flame-retardant powder 4 is broken by the air bag 5, the external combustion part is extinguished through the flame-retardant powder 4, so that the flame retardant property is improved, more serious loss during combustion is avoided, and the cooling pipe 9 containing cooling liquid is embedded and installed in the outer protective layer 8, so that when the high-temperature-resistant energy-saving gas stove is heated, external heat is absorbed by the cooling pipe 9, the efficiency of inward heat conduction is reduced, and the high-temperature-resistant property is improved.

As a technical optimization scheme of the invention, as shown in FIG. 3, a heat conducting rod 12 is uniformly and fixedly installed on the outer surface of an inner fixed tube 1, a fixing ring 2 is fixedly installed at the other end of the heat conducting rod 12, the fixing ring 2 is in heat conduction with the inner fixed tube 1 through the heat conducting rod 12, a vent pipe 13 is uniformly and fixedly installed between the fixing rings 2 on the outer surface of the inner fixed tube 1, the vent pipe 13 is communicated with a through hole 10, an arc-shaped groove 14 is uniformly opened between the vent pipe 13 and the fixing ring 2 on a flame retardant powder 4, an air bag 5 is embedded and installed inside the arc-shaped groove 14, through holes 15 are uniformly opened on the flame retardant powder 4 and an outer protective layer 8, one end of the vent pipe 13 extends into the through hole 15 on the flame retardant powder 4, the other end of the vent pipe 13 is in contact with a woven layer 6 and a dustproof mesh layer 7, and one end of the vent pipe 13 is communicated with the outside through the through hole 15 on the outer protective layer 8, and the outer surface of the outer protective layer 8 is provided with grooves 16 at the positions of the through holes 15, convex strips 17 are uniformly and fixedly arranged between the grooves 16 at the outer surface of the outer protective layer 8, blind holes 18 are uniformly arranged in the raised strips 17, the cooling pipe 9 is inserted in the blind holes 18, when in use, the heat conducting rod 12 is convenient for the heat on the fixing ring 2 to be conducted to the inside of the inner fixing pipe 1, further facilitating the heat dissipation, facilitating the fixation of the inner conductor 3 through the fixation ring 2, facilitating the flow of the air inside the inner fixation tube 1 and the outside through the vent tube 13, and the outer impurities are prevented from entering the inner part of the inner fixed pipe 1 through the weaving layer 6 and the dustproof net layer 7, and through the through hole 15, outside air can enter the inner fixing tube 1 conveniently, heat generated on the inner conductor 3 can be discharged conveniently, heat dissipation is facilitated, and use safety is improved.

As a technical optimization scheme of the invention, as shown in FIG. 6, the outer protective layer 8 comprises an oxygen barrier layer 81, an insulating layer 82, a reinforcing mesh layer 83, a heat insulation layer 84 and a polyvinyl chloride layer 85, the outer protective layer 8 is fixedly arranged on the outer surface of the dustproof net layer 7 through an oxygen-isolating layer 81, the insulating layer 82 is fixedly arranged on the outer surface of the oxygen-isolating layer 81 in a covering mode, the reinforced net layer 83 is fixedly arranged on the outer surface of the insulating layer 82 in a covering mode, the heat-insulating layer 84 is arranged on the outer surface of the reinforced net layer 83 in a covering mode, the polyvinyl chloride layer 85 is fixedly arranged on the outer surface of the reinforced net layer 83 in a covering mode, the oxygen barrier layer 81 and the insulating layer 82 improve the safety in use, and the reinforcing mesh layer 83 improves the stretch-proof effect in use, the heat-resistant effect of the invention is improved by the heat-insulating layer 84, and the wear-resistant effect and the service life are improved by the polyvinyl chloride layer 85.

As a technical optimization scheme of the present invention, as shown in fig. 7, the inner conductor 3 is composed of a wire core 31, a mica powder layer 32, an inner liner layer 33, a shielding layer 34 and an inner protection layer 35, and the wire core 31 is in a bundle structure, the inner liner layer 33 covers the outside of the bundle structure formed by the wire core 31, the mica powder layer 32 is filled in the inner liner layer 33 in a gap of the wire core 31, the shielding layer 34 covers the outside of the inner liner layer 33, the inner protection layer 35 covers the outside of the shielding layer 34, the inner protection layer 35 is composed of a flame retardant layer 351, a nylon mesh layer 352, a rubber layer 353 and a heat conductive silica gel sheet layer 354, the inner protection layer 35 covers the outside of the shielding layer 34 through the flame retardant layer 351, the nylon mesh layer 352 covers the outside of the flame retardant layer 351, the rubber layer 353 covers the outside of the nylon mesh layer 352, the heat conductive silica gel sheet layer 354 covers the outside of the rubber layer 353, the inner conductor 3 is fixedly installed in the fixing ring 2 through the heat conductive silica gel sheet 354, the mica powder layer 32 is used for improving the flame retardant effect of the wire core 31, the shielding effect between the cable core 31 and an external cable or equipment is reduced through the shielding layer 34, the wire core 31 is protected conveniently through the inner protection layer 35, and the heat conducting silica gel sheet layer 354 in the inner protection layer 35 is used for transmitting the heat on the wire core 31 to the inner fixing tube 1 through the heat conducting rod 12 and dissipating the heat conveniently.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a fire-retardant high temperature resistant flexible cable which characterized in that: including internal fixation pipe (1), the even fixed mounting in the outside of internal fixation pipe (1) has solid fixed ring (2), just peg graft fixed mounting in the middle of the inside of solid fixed ring (2) has inner conductor (3), the outside cladding of internal fixation pipe (1) has fire-retardant powder (4), evenly inlay between fire-retardant powder (4) and install gasbag package (5), just the outside cladding of fire-retardant powder (4) has weaving layer (6), dustproof stratum reticulare (7) are installed in the outside cladding of weaving layer (6), outer protective layer (8) are installed in the outside cladding of dustproof stratum reticulare (7), just cooling tube (9) that contain the coolant liquid are evenly inlayed and installed in the inside of outer protective layer (8).

2. The flame-retardant high-temperature-resistant flexible cable according to claim 1, wherein: through-hole (10) have been seted up to the inside of internal fixation pipe (1), just the inside of through-hole (10) is inlayed and is installed strengthening rib (11), strengthening rib (11) comprise strengthening wire (111) and water conservancy diversion piece (112), just water conservancy diversion piece (112) spiral fixed mounting be in the outside of strengthening wire (111), strengthening wire (111) pass through water conservancy diversion piece (112) fixed mounting be in the inside of through-hole (10).

3. The flame-retardant high-temperature-resistant flexible cable according to claim 2, wherein: the even fixed mounting in surface of internal fixation pipe (1) has heat conduction pole (12), just gu fixed ring (2) fixed mounting in the other end of heat conduction pole (12), gu fixed ring (2) passes through heat conduction pole (12) with internal fixation pipe (1) is heat-conduction mutually, just the surface of internal fixation pipe (1) is located even fixed mounting has breather pipe (13) between solid fixed ring (2), breather pipe (13) with through-hole (10) are linked together.

4. A flame-retardant high-temperature-resistant flexible cable according to claim 3, wherein: the fire-retardant powder (4) are located breather pipe (13) with evenly seted up arc wall (14) between solid fixed ring (2), just gasbag package (5) are inlayed and are installed the inside of arc wall (14), fire-retardant powder (4) with evenly seted up through hole (15) on outer protective layer (8), the one end of breather pipe (13) extends to on fire-retardant powder (4) inside through hole (15), just the other end of breather pipe (13) with weaving layer (6) with dustproof stratum reticulare (7) contact, just the one end of breather pipe (13) is passed through on outer protective layer (8) through hole (15) are linked together with the outside, just the surface of outer protective layer (8) is located the position of through hole (15) is seted up flutedly (16).

5. The flame-retardant high-temperature-resistant flexible cable according to claim 4, wherein: convex strips (17) are uniformly and fixedly arranged between the grooves (16) on the outer surface of the outer protection layer (8), blind holes (18) are uniformly formed in the convex strips (17), and the cooling pipe (9) is inserted in the blind holes (18).

6. The flame-retardant high-temperature-resistant flexible cable according to claim 1, wherein: the outer protection layer (8) comprises an oxygen isolation layer (81), an insulation layer (82), a reinforced net layer (83), a heat insulation layer (84) and a polyvinyl chloride layer (85), the outer protection layer (8) is fixedly installed on the outer surface of the dustproof net layer (7) through the oxygen isolation layer (81), the insulation layer (82) is fixedly installed on the outer surface of the oxygen isolation layer (81) in a wrapping mode, the reinforced net layer (83) is fixedly installed on the outer surface of the insulation layer (82) in a wrapping mode, the heat insulation layer (84) is installed on the outer surface of the reinforced net layer (83) in a wrapping mode, and the polyvinyl chloride layer (85) is fixedly installed on the outer surface of the reinforced net layer (83) in a wrapping mode.

7. The flame-retardant high-temperature-resistant flexible cable according to claim 1, wherein: inner conductor (3) comprise sinle silk (31), mica powder layer (32), inner liner (33), shielding layer (34) and inner protective layer (35), just sinle silk (31) bunchy structure, inner liner (33) cladding is in the bunched structure outside that sinle silk (31) formed, just mica powder layer (32) are filled the inside of inner liner (33) is located in the gap of sinle silk (31), shielding layer (34) cladding is in the outside of inner liner (33), just inner protective layer (35) cladding is in the outside of shielding layer (34).

8. The flame-retardant high-temperature-resistant flexible cable according to claim 7, wherein: inner protection layer (35) comprise fire-retardant layer (351), nylon stratum reticulare (352), rubber layer (353) and heat conduction silica gel lamella (354), just inner protection layer (35) pass through fire-retardant layer (351) cladding is in the outside of shielding layer (34), nylon stratum reticulare (352) cladding is in the outside of fire-retardant layer (351), rubber layer (353) cladding is in the outside of nylon stratum reticulare (352), just heat conduction silica gel lamella (354) cladding is in the outside of rubber layer (353), inner conductor (3) pass through heat conduction silica gel lamella (354) fixed mounting be in the inside of solid fixed ring (2).

9. The flame-retardant high-temperature-resistant flexible cable according to claim 1, wherein: the quantity of inner conductor (3) is three, just become the circumference geometric proportion distribution between inner conductor (3), just gu fixed ring (2) is three groups, gu fixed ring (2) is in become the equidistance and distribute on fixed tube (1).

10. The flame-retardant high-temperature-resistant flexible cable according to claim 1, wherein: the air bag packet (5) and the cooling pipe (9) are respectively distributed in the flame retardant powder (4) and the outer protective layer (8) in a staged manner.