CN112133487A - Polyethylene insulation flame-retardant polyvinyl chloride sheath computer cable - Google Patents
Polyethylene insulation flame-retardant polyvinyl chloride sheath computer cable Download PDFInfo
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- CN112133487A CN112133487A CN202011017748.4A CN202011017748A CN112133487A CN 112133487 A CN112133487 A CN 112133487A CN 202011017748 A CN202011017748 A CN 202011017748A CN 112133487 A CN112133487 A CN 112133487A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/426—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using cooling fins, ribs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/06—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances asbestos
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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Abstract
The invention discloses a polyethylene insulated flame-retardant polyvinyl chloride sheathed computer cable which comprises a main line, wherein four groups of auxiliary lines I are symmetrically arranged on the outer side surface of the main line, an auxiliary line II is arranged between the two groups of auxiliary lines I, an asbestos plate is sleeved on the auxiliary line I, a thin metal sheet is sleeved on the outer side of the asbestos plate, a sponge cushion is filled between the auxiliary line I and the thin metal sheet, four groups of T-shaped grooves are formed in the positions, close to one side, of the upper end of the thin metal sheet, four groups of T-shaped blocks are arranged on the other side of the thin metal sheet, and a rubber sleeve is sleeved on the; the invention can well radiate heat generated by the cable in long-time operation, prevent the cable from catching fire due to overheating of the internal temperature, and the asbestos plate and the rubber plate both have good fire resistance and insulativity, thereby preventing the cable inner core from catching fire and leaking electricity, well protecting the cable inner core and preventing the sheath from sliding on the surface of the rubber plate.
Description
Technical Field
The invention belongs to the field of computer cables, and particularly relates to a polyethylene insulated flame-retardant polyvinyl chloride sheathed computer cable.
Background
The computer cable belongs to the cable for electrical equipment, the cable is suitable for electronic computer and automatic instrument and meter with higher requirement on interference resistance, according to different environments and use requirements of equipment, the cable insulation can adopt materials such as polyethylene, polyvinyl chloride, cross-linked polyethylene, fluoroplastic, silicon rubber and the like, wherein the polyethylene insulation flame-retardant polyvinyl chloride sheath computer shields the cable, has good fireproof, flame-retardant and antistatic effects, and is generally used for laying indoor, cable trench, pipeline and other occasions requiring electrostatic shielding;
after vacuum packaging snacks processing computer cable in market was in long-time operation, cable owner core surface can send a large amount of heats, and the heat gives off in time easily catches fire, and when the cable surface catches fire, its cable inner core also easily damaged because of the high temperature, and the sheath is directly established and is overlapped main core outside surface and easily slips when using.
The invention patent with the publication number of CN109003736A discloses a dual-flame-retardant power cable special for fire fighting, which has good flame-retardant effect, and can avoid the first cable and the second cable from being burnt out due to the action of a mineral substance fire-insulating layer and a ceramic fiber flame-retardant layer when the first cable and the second cable are used in fire-fighting fire danger, and is provided with a pulling mechanism, so that a user can conveniently pull the first cable and the second cable, and further the first cable and the second cable can be pulled simultaneously, and the dual-flame-retardant power cable is convenient to use, but has the following defects: the cable core is not provided with a sheath, the protection effect of the cable core is poor, and a large amount of smoke and toxic gas can be generated during cable combustion.
Disclosure of Invention
The invention aims to provide a polyethylene insulation flame-retardant polyvinyl chloride sheath computer cable, which aims to solve the problems that after the computer cable for processing vacuum-packaged snacks in the market provided in the background art runs for a long time, the surface of a main core of the cable can emit a large amount of heat, the heat is not dissipated timely and is difficult to catch fire, the sheath is directly sleeved on the outer side surface of the main core and is easy to slip off when in use, and the like.
In order to achieve the purpose, the invention provides the following technical scheme: a polyethylene insulation flame-retardant polyvinyl chloride sheath computer cable comprises a main line, wherein four groups of auxiliary lines I are symmetrically arranged on the outer side surface of the main line, an auxiliary line II is arranged between the two groups of auxiliary lines I, an asbestos plate is sleeved on the auxiliary line I, a thin metal sheet is sleeved on the outer side of the asbestos plate, a sponge cushion is filled between the auxiliary line I and the thin metal sheet, four groups of T-shaped grooves are formed in the positions, close to one side, of the upper end of the thin metal sheet, four groups of T-shaped blocks are arranged on the other side of the thin metal sheet, and a rubber sleeve is sleeved on the outer;
the auxiliary line is characterized in that a plurality of groups of limiting belts I are arranged on the outer side wall of the auxiliary line, a limiting groove is formed in the position, close to one side, of the front end of each limiting belt I, triangular clamping blocks are arranged on the inner side wall of each limiting groove, two groups of shaft seats are arranged on the other side of each limiting belt I, a rotating shaft is arranged between the two groups of shaft seats, a limiting belt II is sleeved on the rotating shaft, and a plurality of groups of clamping grooves are formed in the.
Further: the thread includes four groups of conductors, every group the quantity of conductor is two, the conductor surface is equipped with the insulating layer, and every group is two all be provided with the split-phase shielding layer between the insulating layer surface, be provided with the film area between split-phase shielding layer and the insulating layer, four groups be provided with the isolation layer between the split-phase shielding layer outside face, the isolation layer lateral surface is provided with total shielding layer, be equipped with the stopping between isolation layer and the split-phase shielding layer, total shielding layer surface is equipped with the sheath.
Further: the main wire, the auxiliary wire I and the auxiliary wire II jointly form an inner core of the cable, the asbestos board, the thin metal sheet and the rubber sleeve jointly form a flame-retardant layer, the thin metal sheet is made of a thin copper sheet, flocculent asbestos is filled in the asbestos board, the main wire, the auxiliary wire I and the auxiliary wire II are arranged in a spiral shape in a mutually staggered mode, and the thin metal sheet is matched with a T-shaped block through a T-shaped groove to be arranged into a hollow cylindrical shape.
Further: the total shielding layer and the split-phase shielding layer are both made of copper-plastic composite tapes in a wrapping mode, the diameter value of a copper wire of the copper-plastic composite tape for the total shielding layer is not less than eight millimeters at zero point, and the diameter value of the copper wire of the copper-plastic composite tape for the split-phase shielding layer is not less than four millimeters at zero point.
Further: the two limiting belts are movably arranged with the first limiting belt through a rotating shaft matched with the shaft seat, and one ends of the two limiting belts are movably arranged in the limiting grooves through clamping grooves matched with the triangular clamping blocks.
Further: the using method of the computer cable comprises the following specific steps:
the method comprises the following steps: firstly, placing auxiliary wires I on the outer side of a main wire in a cross-shaped manner, then placing an auxiliary wire II between two groups of auxiliary wires I, fixing two ends of an inner core of the cable, and then twisting the two groups of auxiliary wires towards opposite directions to enable the auxiliary wires I, the two groups of auxiliary wires I and the two groups of auxiliary wires I to be spirally arranged;
the second step is that: the first limiting belt is tightly attached to the position where the main wire, the first auxiliary wire and the second auxiliary wire are staggered with each other, the second limiting belt is rotated through the rotating shaft, one end of the second limiting belt penetrates through the limiting groove, the first limiting belt and the second limiting belt are close to each other, one end of the second limiting belt is sleeved on the triangular clamping block through the clamping groove, the asbestos plate is sleeved at the positions of two ends of the cable main core, the thin metal sheet is sleeved on the surface of the outer side of the asbestos plate through the T-shaped block arranged in the T-shaped groove, and finally the rubber sleeve is sleeved on the outer side of the thin metal sheet.
Compared with the prior art, the invention has the beneficial effects that:
1. establish the sheet metal cover at T type inslot portion on asbestos board outside surface through making T type piece setting, wherein the sheet metal has good thermal diffusivity, can distribute away the heat that the cable inner core during operation produced, and the sheet metal overcoat is equipped with the rubber sleeve, then will be by the rubber sleeve, and wherein the asbestos board has fine fire proofness and insulating nature, prevents that the cable inner core from catching fire and electric leakage, can play the guard action well to the cable inner core.
2. Through adopting the compound tape total shield layer of copper plastics and split phase shielding layer, shielding, dampproofing effectual to there is certain radial protective capability, can provide fine guard action to the cable core, the compound tape shielding layer is moulded to copper places one or more outside with the strap continuous contact's ground wire, its effect is simple to operate, easy ground connection, second in case the compound tape joint department pine of copper plastics takes off, can guarantee induction electromagnetic signal's conduction ground connection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the structure of a thin metal sheet and a rubber sleeve in the present invention;
FIG. 3 is a schematic view of a thin metal sheet according to the present invention;
FIG. 4 is a schematic structural diagram of a main line, an auxiliary line one and an auxiliary line two in the present invention;
fig. 5 is a front sectional view of the main line structure of the present invention.
In the figure: 1. a main line; 101. a conductor; 102. an insulating layer; 103. a split-phase shielding layer; 104. a film tape; 105. an isolation layer; 106. a total shielding layer; 107. a filler; 108. a sheath; 2. a first auxiliary line; 3. A second auxiliary line; 4. an asbestos sheet; 5. a thin metal sheet; 6. a T-shaped groove; 7. a T-shaped block; 8. a rubber sleeve; 9. A first limiting belt; 10. a limiting groove; 11. a triangular clamping block; 12. a shaft seat; 13. a rotating shaft; 14. a second limiting belt; 15. a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
As shown in fig. 1-5, a polyethylene insulation flame-retardant polyvinyl chloride sheath 108 computer cable comprises a main line 1, four sets of auxiliary lines one 2 are symmetrically arranged on the outer side surface of the main line 1, an auxiliary line two 3 is arranged between the two sets of auxiliary lines one 2, an asbestos plate 4 is sleeved on the auxiliary line one 2, a thin metal sheet 5 is sleeved on the outer side of the asbestos plate 4, a sponge pad is filled between the auxiliary line one 2 and the thin metal sheet 5, four sets of T-shaped grooves 6 are formed in the position, close to one side, of the upper end of the thin metal sheet 5, four sets of T-shaped blocks 7 are arranged on the other side of the thin metal sheet 5, and a rubber sleeve 8 is sleeved on the outer side surface;
the outer side wall of the auxiliary line I2 is provided with a plurality of groups of limiting belts I9, a limiting groove 10 is formed in the position, close to one side, of the front end of the limiting belt I9, a triangular clamping block 11 is arranged on the inner side wall of the limiting groove 10, two groups of shaft seats 12 are arranged on the other side of the limiting belt I9, a rotating shaft 13 is arranged between the shaft seats 12, a limiting belt II 14 is sleeved on the rotating shaft 13, and a plurality of groups of clamping grooves 15 are formed in the surface of the limiting belt II 14.
The main line 1 comprises four groups of conductors 101, the number of each group of conductors 101 is two, the outer surfaces of the conductors 101 are provided with insulating layers 102, a split-phase shielding layer 103 is arranged between the outer surfaces of the two insulating layers 102 in each group, a thin film strip 104 is arranged between the split-phase shielding layer 103 and the insulating layer 102, an isolating layer 105 is arranged between the outer side surfaces of the four groups of split-phase shielding layers 103, a total shielding layer 106 is arranged on the outer side surface of the isolating layer 105, a filler 107 is arranged between the isolating layer 105 and the split-phase shielding layer 103, and a protective sleeve 108 is arranged on the.
The main wire 1, the auxiliary wire I2 and the auxiliary wire II 3 jointly form a cable inner core, the asbestos plate 4, the thin metal sheet 5 and the rubber sleeve 8 jointly form a flame-retardant layer, the thin metal sheet 5 is made of thin copper sheets, flocculent asbestos is filled in the asbestos plate 4, the main wire 1, the auxiliary wire I2 and the auxiliary wire II 3 are arranged in a spiral shape in a mutually staggered mode, and the thin metal sheet 5 is matched with the T-shaped block 7 through the T-shaped groove 6 and is arranged into a hollow cylindrical shape.
The total shielding layer 106 and the split-phase shielding layer 103 are both made of copper-plastic composite tapes in a wrapping mode, the diameter value of a copper wire of the copper-plastic composite tape for the total shielding layer 106 is not less than eight zero millimeters, and the diameter value of the copper wire of the copper-plastic composite tape for the split-phase shielding layer 103 is not less than four zero millimeters.
The second limiting belt 14 is movably arranged with the first limiting belt 9 by matching the rotating shaft 13 with the shaft seat 12, and one end of the second limiting belt 14 is movably arranged in the limiting groove 10 by matching the clamping groove 15 with the triangular clamping block 11.
The using method of the computer cable comprises the following specific steps:
the method comprises the following steps: firstly, placing auxiliary wires I2 outside a main wire 1 in a cross-shaped distribution mode, then placing an auxiliary wire II 3 between two groups of auxiliary wires I2, fixing two ends of an inner core of the cable, and then twisting the two ends in opposite directions to enable the two auxiliary wires to be spirally arranged;
the second step is that: the first limiting belt 9 is tightly attached to the mutually staggered position of the main line 1, the first auxiliary line 2 and the second auxiliary line 3, the second limiting belt 14 is rotated through the rotating shaft 13, one end of the second limiting belt 14 penetrates through the limiting groove 10, the first limiting belt 9 and the second limiting belt 14 are close to each other, one end of the second limiting belt 14 is sleeved on the triangular clamping block 11 through the clamping groove 15, the asbestos plate 4 is sleeved at the position of the two ends of the cable main core, the thin metal sheet 5 is sleeved on the outer side surface of the asbestos plate 4 through the T-shaped block 7 arranged inside the T-shaped groove 6, and finally the rubber sleeve 8 is sleeved on the outer side of the thin metal sheet 5.
Compared with the prior art, the invention has the beneficial effects that:
1. establish the sheet metal cover at T type inslot portion on asbestos board outside surface through making T type piece setting, wherein the sheet metal has good thermal diffusivity, can distribute away the heat that the cable inner core during operation produced, and the sheet metal overcoat is equipped with the rubber sleeve, then will be by the rubber sleeve, and wherein the asbestos board has fine fire proofness and insulating nature, prevents that the cable inner core from catching fire and electric leakage, can play the guard action well to the cable inner core.
2. Through adopting the compound tape total shield layer of copper plastics and split phase shielding layer, shielding, dampproofing effectual to there is certain radial protective capability, can provide fine guard action to the cable core, the compound tape shielding layer is moulded to copper places one or more outside with the strap continuous contact's ground wire, its effect is simple to operate, easy ground connection, second in case the compound tape joint department pine of copper plastics takes off, can guarantee induction electromagnetic signal's conduction ground connection.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (6)
1. A polyethylene insulated flame-retardant polyvinyl chloride sheath computer cable is characterized by comprising a main wire (1), wherein four groups of auxiliary wires I (2) are symmetrically arranged on the outer side surface of the main wire (1), an auxiliary wire II (3) is arranged between the two groups of auxiliary wires I (2), an asbestos plate (4) is sleeved on the auxiliary wire I (2), a thin metal sheet (5) is sleeved on the outer side of the asbestos plate (4), a sponge cushion (29) is filled between the auxiliary wire I (2) and the thin metal sheet (5), four groups of T-shaped grooves (6) are formed in the position, close to one side, of the upper end of the thin metal sheet (5), four groups of T-shaped blocks (7) are arranged on the other side of the thin metal sheet (5), and a rubber sleeve (8) is sleeved on the outer side surface of;
the auxiliary line I (2) outer side wall is provided with a plurality of groups of limiting belts I (9), the limiting groove (10) is formed in the position, close to one side, of the front end of the limiting belt I (9), the inner side wall of the limiting groove (10) is provided with a triangular clamping block (11), the other side of the limiting belt I (9) is provided with two groups of shaft seats (12) and is two groups of rotating shafts (13) are arranged between the shaft seats (12), the rotating shafts (13) are sleeved with limiting belts II (14), and a plurality of groups of clamping grooves (15) are formed in the surfaces of the limiting belts II (14).
2. The computer cable with the polyethylene insulating flame-retardant polyvinyl chloride sheath according to claim 1, wherein the main line (1) comprises four groups of conductors (101), the number of each group of conductors (101) is two, the outer surfaces of the conductors (101) are provided with the insulating layers (102), a phase separation shielding layer (103) is arranged between the outer surfaces of the two insulating layers (102) in each group, a thin film tape (104) is arranged between the phase separation shielding layer (103) and the insulating layer (102), an isolating layer (105) is arranged between the outer side surfaces of the four groups of phase separation shielding layers (103), a total shielding layer (106) is arranged on the outer side surface of the isolating layer (105), a filling material (107) is arranged between the isolating layer (105) and the phase separation shielding layer (103), and the outer surface of the total shielding layer (106) is provided with a sheath.
3. The computer cable with the polyethylene insulating flame-retardant polyvinyl chloride sheath as claimed in claim 1, wherein the main wire (1), the auxiliary wire I (2) and the auxiliary wire II (3) jointly form a cable core, the asbestos board (4), the thin metal sheet (5) and the rubber sleeve (8) jointly form a flame-retardant layer, the thin metal sheet (5) is made of a thin copper sheet, flocculent asbestos is filled in the asbestos board (4), the main wire (1), the auxiliary wire I (2) and the auxiliary wire II (3) are spirally and alternately arranged, and the thin metal sheet (5) is arranged in a hollow cylindrical shape through a T-shaped groove (6) and a T-shaped block (7).
4. The polyethylene insulated flame-retardant polyvinyl chloride sheathed computer cable according to claim 2, wherein the total shielding layer (106) and the split-phase shielding layer (103) are both made of copper-plastic composite tapes by winding, the diameter value of the copper wire of the copper-plastic composite tape for the total shielding layer (106) is not less than zero eight millimeters, and the diameter value of the copper wire of the copper-plastic composite tape for the split-phase shielding layer (103) is not less than zero four millimeters.
5. The computer cable with the polyethylene insulating flame-retardant polyvinyl chloride sheath according to claim 1, wherein the second limiting belt (14) is movably arranged with the first limiting belt (9) by a rotating shaft (13) in cooperation with the shaft seat (12), and one end of the second limiting belt (14) is movably arranged inside the limiting groove (10) by a clamping groove (15) in cooperation with the triangular clamping block (11).
6. The polyethylene insulation flame-retardant polyvinyl chloride sheathed computer cable according to claim 1, wherein the use method of the computer cable comprises the following specific steps:
the method comprises the following steps: firstly, placing auxiliary wires I (2) on the outer side of a main wire (1) in a cross-shaped manner, then placing an auxiliary wire II (3) between two groups of auxiliary wires I (2), fixing two ends of an inner core of a cable, and then twisting the two auxiliary wires in opposite directions to enable the auxiliary wires I (2) and the two auxiliary wires I (2) to be spirally arranged;
the second step is that: closely attaching a first limiting belt (9) to the mutually staggered positions of a main line (1), a first auxiliary line (2) and a second auxiliary line (3), rotating a second limiting belt (14) through a rotating shaft (13), enabling one end of the second limiting belt (14) to penetrate through a limiting groove (10), enabling the first limiting belt (9) and the second limiting belt (14) to be close to each other, sleeving one end of the second limiting belt (14) on a triangular clamping block (11) through a clamping groove (15), sleeving an asbestos plate (4) at the positions of two ends of a cable main core, sleeving a thin metal sheet (5) on the outer side surface of the asbestos plate (4) through enabling a T-shaped block (7) to be arranged inside a T-shaped groove (6), and finally sleeving a rubber sleeve (8) at the outer side of the thin metal sheet (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011017748.4A CN112133487A (en) | 2020-09-24 | 2020-09-24 | Polyethylene insulation flame-retardant polyvinyl chloride sheath computer cable |
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| CN202011017748.4A CN112133487A (en) | 2020-09-24 | 2020-09-24 | Polyethylene insulation flame-retardant polyvinyl chloride sheath computer cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768134A (en) * | 2021-01-06 | 2021-05-07 | 江西新吉电缆有限公司 | Cross-linked polyethylene insulation halogen-free low-smoke flame-retardant shielding computer cable |
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| CN210443336U (en) * | 2019-07-23 | 2020-05-01 | 西部电缆陕西有限公司 | Cold-resistant power cable |
| CN210778023U (en) * | 2019-12-09 | 2020-06-16 | 天长市徽宁电器仪表厂 | Novel control cable |
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| CN112768134A (en) * | 2021-01-06 | 2021-05-07 | 江西新吉电缆有限公司 | Cross-linked polyethylene insulation halogen-free low-smoke flame-retardant shielding computer cable |
| CN112768134B (en) * | 2021-01-06 | 2022-06-28 | 江西新吉电缆有限公司 | Cross-linked polyethylene insulation halogen-free low-smoke flame-retardant shielding computer cable |
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Application publication date: 20201225 |
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