CN114023502A - Halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable - Google Patents
Halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable Download PDFInfo
- Publication number
- CN114023502A CN114023502A CN202111602951.2A CN202111602951A CN114023502A CN 114023502 A CN114023502 A CN 114023502A CN 202111602951 A CN202111602951 A CN 202111602951A CN 114023502 A CN114023502 A CN 114023502A
- Authority
- CN
- China
- Prior art keywords
- cable
- unit
- units
- layer
- flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H01B7/221—Longitudinally placed metal wires or tapes
- H01B7/225—Longitudinally placed metal wires or tapes forming part of an outer sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
- H01B11/08—Screens specially adapted for reducing cross-talk
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
-
- 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
- H01B7/184—Sheaths comprising grooves, ribs or other projections
-
- 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
- H01B7/185—Sheaths comprising internal cavities or channels
-
- 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
- H01B7/24—Devices affording localised protection against mechanical force or pressure
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The application discloses a halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable which comprises an outer sheath, wherein two framework shaping units, two anti-torsion units and three cable units are arranged in the outer sheath, and each anti-torsion unit comprises a stainless steel belt, a tensile rope and a first inner sheath which is formed by extrusion molding and covers the stainless steel belt and the tensile rope; three cable unit and two antitorque units are one row of range, and three cable unit is located between two antitorque units, cable unit includes the interior sheath of second and two first heart yearns of being protected the layer parcel by the interior sheath of second, the interior sheath of second includes two encirclements that surround first heart yearn and connects the first connecting portion of two encirclements, the integrative extrusion molding of first connecting portion and two encirclements, the skeleton design unit includes outside protection portion and two supporting parts, connect through the second connecting portion between supporting part and the outside protection portion. The cable has good shielding and flame retardant properties.
Description
Technical Field
The application relates to the field of cables, in particular to a halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable.
Background
The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. The total output value of the electric wire and the electric cable in China exceeds the United states worldwide, and the electric wire and the electric cable become the first country for producing the electric wire and the electric cable in the world. Along with the high-speed development of the China wire and cable industry, the number of newly added enterprises is continuously increased, and the overall technical level of the industry is greatly improved. The cable has a wide application range, and can be divided into a plurality of types according to different transmission signals or electric power, the control cable is one of the control cables, the control cable has huge structural differences according to the application occasions, in some occasions, the control cable is required to be provided with a plurality of cable cores, the cable cores have good shielding performance and do not interfere with each other, the control cable also needs to cope with the interference of the field environment, and also needs to cope with external forces such as pulling and twisting on the field, and needs to meet the requirements of high-efficiency flame retardance and the like, so the control cable with excellent mechanical performance and electromagnetic shielding and flame-retardant insulating performance is required to meet the use requirement.
Disclosure of Invention
The purpose of the invention is as follows: the application aims to overcome the defects of the prior art and provides a halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable.
The technical scheme is as follows: a halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable comprises an outer sheath, wherein two framework shaping units, two anti-torsion units and three cable units are arranged in the outer sheath, each anti-torsion unit comprises a stainless steel belt, a tensile rope and a first inner protective layer wrapping the stainless steel belt and the tensile rope in an extrusion molding mode, the first inner protective layer comprises a first wrapping portion wrapping the stainless steel belt, a second wrapping portion wrapping the tensile rope, a protruding portion connected with the first wrapping portion and an embedding portion connected with the protruding portion, and the first wrapping portion, the second wrapping portion, the protruding portion and the embedding portion are integrally formed in an extrusion molding mode; the three cable units and the two torsion resistant units are arranged in a row, the three cable units are positioned between the two torsion resistant units, each cable unit comprises a second inner protective layer and two first core wires wrapped by the second inner protective layer, each second inner protective layer comprises two surrounding parts surrounding the corresponding first core wire and a first connecting part connecting the two surrounding parts, the first connecting part and the two surrounding parts are integrally formed in an extrusion molding mode, two sides of each first connecting part are recessed, and one sides, facing the torsion resistant units, of the first connecting parts of the two cable units except for the middle position are provided with limiting grooves matched with the embedding parts; the framework design unit includes that the third is protected the layer and is protected two second heart yearns of layer parcel in the third, the framework design unit includes outside protection portion and two supporting parts, the supporting part with connect through second connecting portion between the protection portion in the outside, outside protection portion, two second connecting portion and two integrative extrusion molding of supporting part, the both sides of second connecting portion all are sunken form, and two second heart yearns are located quilt in the protection portion in the outside protection portion parcel.
Furthermore, the cable unit located in the middle of the 3 cable units is a first cable unit, and the two cable units located on the two sides are second cable units; the outside protection part of skeleton design unit has the face the cambered surface of oversheath, be used for holding first holding tank and two second holding tanks that are used for holding second cable unit of first cable unit, first holding tank is located between two second holding tanks.
Thereby can realize fine embedding cooperation between two skeleton design units and the 3 cable unit and fix.
Further, the embedding portion includes two first cambered surfaces and connects the first connection plane of two cambered surfaces, the spacing groove includes two second cambered surfaces that are used for butt first cambered surface and connects the second connection plane of two second cambered surfaces, the second connection plane is used for the butt first connection plane.
Therefore, the embedded part and the limiting groove can be well inserted and limited and are fixed together.
Further, one side of the second connecting part of the framework shaping unit, which faces the first cable unit, is used for abutting against the first cable unit, and one side of the second connecting part, which faces the second cable unit, is used for abutting against the second cable unit; the two sides of the first connecting portion of the first cable unit are abutted to the supporting portion, one side, facing the supporting portion, of the second cable unit is abutted to the supporting portion, and one side, away from the supporting portion, of the second cable unit is provided with the limiting groove.
Further, the one end that the side protection unit was kept away from to the supporting part has the semicircular breach in cross-section, the both sides of semicircular breach all have the bar butt piece, and two bar butt pieces of every supporting part and two bar butt pieces of one of them supporting part of another skeleton design unit butt mutually.
Thereby set up bar butt joint piece for two supporting parts that correspond are when the butt joint is together, because the butt joint of bar butt joint piece, make the butt joint area bigger, make fixed mounting more stable.
Further, each torsion resisting unit is provided with one stainless steel belt and two tensile ropes, the two tensile ropes are located on the same side of the stainless steel belt, and the two tensile ropes are located on two sides of the protruding portion.
So that the torsion unit provides a good tensile effect at the same time.
Further, first core wire includes armor, first fire-retardant layer, first shielding layer, first around the covering from outside to inside in proper order, and is first have a plurality of first wires in the covering, first wire includes first conductor and the first insulating layer of cladding first conductor.
Further, the second heart yearn includes fire-retardant layer of second, second shielding layer, second in proper order from outside to inside around the covering, the second has a plurality of second wires in the covering, the second wire includes second conductor and the second insulating layer of cladding second conductor.
Furthermore, the first flame-retardant layer and the second flame-retardant layer are both low-smoke halogen-free flame-retardant layers, and the first wrapping layer and the second wrapping layer are both made of mica tapes; the first shielding layer and the second shielding layer are copper wire braided shielding layers; the first conductor and the second conductor are both copper conductors; the outer sheath is made of halogen-free high-flame-retardant polyolefin mixture.
Further, the first inner sheath layer, the second inner sheath layer and the third inner sheath layer are all polyethylene inner sheath layers.
Further, the tensile rope is a steel wire tensile rope.
A manufacturing method of the halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable comprises the following steps that:
1) manufacturing the torsion-resisting unit by extrusion molding of a stainless steel belt and two tensile ropes; manufacturing the second core wire, and manufacturing the framework shaping unit by extrusion molding of the second core wire; manufacturing the first core wire, and manufacturing the first cable unit and the second cable unit by extrusion molding the first core wire;
2) pressing and holding the first cable unit and the two framework shaping units by two first pressing rollers, so that the first accommodating grooves of the two framework shaping units accommodate the first cable unit from two sides;
3) pressing the torsion-resistant unit and the second cable unit by using two second pressing roller units, so that the embedded part of the torsion-resistant unit is embedded into the limiting groove of the second cable unit;
4) pressing the two torsion resisting units by using two third pressing roller units so as to press the first whole formed in the step 2) and the two second whole formed in the step 3) together, so that the second cable is accommodated in the second accommodating groove of the framework shaping unit;
5) extruding the third integral extruded outer sheath obtained in the step 4).
Has the advantages that: the utility model provides a there is not steamed fire-retardant fire-resistant shielded control cable of low smoke B1 level, it has good mechanical properties and electrical property, can be applicable to comparatively complicated installation occasion, specifically has following excellent effect for ordinary cable:
1) the cable has good tensile and torsion resistant effects, and the torsion resistant unit has good tensile effects while providing torsion resistance, so that tensile and torsion resistant protection of the cable is realized.
2) Two side protection units protect the cable from both sides to make the cable have better resistant extrusion effect, and the hollow passageway that forms between the supporting part that corresponds provides the buffering for resistant turning round on the one hand, and on the other hand makes the inside heat of cable give off easily, thereby realizes better radiating effect.
3) The cable is provided with a plurality of first core wires and a plurality of second core wires, so that the transmission of various complex signals is realized, and the cable cores are not interfered with each other.
4. The utility model provides a heart yearn has fire-retardant layer and around the covering, realizes dual fire-retardant to realize better flame retardant efficiency.
Drawings
FIG. 1 is a schematic cross-sectional view of a cable;
FIG. 2 is a schematic cross-sectional perspective view of a cable;
FIG. 3 is an exploded view of the cable assembly;
fig. 4 is a schematic layout of a first entity and two second entities in a cable production process;
FIG. 5 is a schematic view of the production of step 2) and step 3);
FIG. 6 is a schematic view of the production in step 4).
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.
Reference numerals: 1 an outer sheath; 2, a framework shaping unit; 2.1 an outer protective part; 2.2 a second connection unit; 2.3 a support part; 2.4 strip-shaped abutting pieces; 3 a second core wire; 3.1 a second flame retardant layer; 3.2 a second shielding layer; 3.3 a second lapping layer; 3.4 a second insulating layer; 3.5 a second conductor; 4 a cable unit; 4.1 a second inner sheath layer; 4.1.1 surrounding part; 4.1.2 first connection; 4.1.3 limiting grooves; 4.2 an armor layer; 4.3 a first flame retardant layer; 4.4 first shielding layer; 4.5 a first wrapping layer; 4.6 a first insulating layer; 4.7 a first conductor; 5 a torsion unit; 5.1 stainless steel band; 5.2 tensile resistance ropes; 5.3.1 first wrapping; 5.3.2 second wrapping portion; 5.3.3 convex part; 5.3.4 embedding part; 6.1 a first press roll; 6.2 a second press roll; 6.3 third press roll.
The following detailed description is made with reference to the accompanying drawings, in which: a halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable comprises an outer sheath 1, wherein two skeleton shaping units 2, two torsion-resistant units 5 and three cable units 4 are arranged in the outer sheath 1, each torsion-resistant unit 5 comprises a stainless steel strip 5.1, a tension-resistant rope 5.2 and a first inner protective layer wrapping the stainless steel strip 5.1 and the tension-resistant rope 5.2 through extrusion molding, each first inner protective layer comprises a first wrapping part 5.3.1 wrapping the stainless steel strip 5.1, a second wrapping part 5.3.2 wrapping the tension-resistant rope 5.2, a protruding part 5.3.3 connected with the first wrapping part 5.3.1 and an embedded part 5.3.4 connected with the protruding part 5.3.3, and the first wrapping part 5.3.1, the second wrapping part 5.3.2, the protruding part 5.3.3 and the embedded part 5.3.4 are integrally formed through extrusion molding; three cable units 4 and two torsion resistant units 5 are arranged in a row, and three cable units 4 are located between the two torsion resistant units 5, the cable units 4 comprise a second inner protective layer 4.1 and two first core wires wrapped by the second inner protective layer 4.1, the second inner protective layer 4.1 comprises two surrounding parts 4.1.1 surrounding the first core wires and a first connecting part 4.1.2 connecting the two surrounding parts 4.1.1, the first connecting part 4.1.2 and the two surrounding parts 4.1.1 are integrally extruded, two sides of the first connecting part 4.1.2 are concave, and one side of the first connecting part 4.1.2 of the two cable units 4 except the middle position facing the torsion resistant units 5 is provided with a limiting groove 4.1.3 matched with the embedding part 5.3.4; skeleton design unit 2 includes the third in the sheath and by two second heart yearns 3 of sheath parcel in the third, skeleton design unit 2 includes outside protection part 2.1 and two supporting parts 2.3, supporting part 2.3 with connect through second connecting portion 2.2 between the outside protection part 2.1, two second connecting portion 2.2 and two supporting parts 2.3 integrative extrusion molding, the both sides of second connecting portion 2.2 all are sunken form, and two second heart yearns 3 are located quilt in the outside protection part 2.1 parcel.
The cable unit in the middle of the 3 cable units 4 is a first cable unit, and the two cable units on the two sides are second cable units; the outside protection part 2.1 of skeleton design unit 2 has the face the cambered surface of oversheath 1, be used for holding first holding tank and two second holding tanks that are used for holding second cable unit of first cable unit, first holding tank is located between two second holding tanks. Embedding portion 5.3.4 includes two first cambered surfaces and connects the first connection plane of two cambered surfaces, spacing groove 4.1.3 includes two second planes that are used for the second cambered surface of the first cambered surface of butt and connect two second cambered surfaces, the second connection plane is used for the butt first connection plane. One side of the second connecting part of the framework shaping unit 2, which faces the first cable unit, is used for abutting against the first cable unit, and one side of the second connecting part, which faces the second cable unit, is used for abutting against the second cable unit; both sides of the first connecting portion of the first cable unit are abutted to the supporting portion 2.3, one side, facing the supporting portion 2.3, of the second cable unit is abutted to the supporting portion, and one side, far away from the supporting portion, of the second cable unit is provided with the limiting groove 4.1.3.
The one end that the side protection unit 2.1 was kept away from to the supporting part has the semicircular breach in cross-section, the both sides of semicircular breach all have strip butt piece 2.4, two strip butt pieces 2.4 of every supporting part 2.3 and two strip butt pieces 2.4 looks butt of one of them supporting part 2.3 of another skeleton design unit 2. Each torsion unit 5 has one of the stainless steel strips 5.1 and two of the tensile cords 5.2, the two tensile cords 5.2 being located on the same side of the stainless steel strip 5.1 and the two tensile cords 5.2 being located on both sides of the protrusion 5.3.3.
First core wire includes armor 4.2, first fire-retardant layer 4.3, first shielding layer 4.4, first around covering 4.5 in proper order from outside to inside, and is first have a plurality of first wires in around covering 4.5, first wire includes first conductor 4.7 and the first insulating layer 4.6 of cladding first conductor 4.7. Second heart yearn 3 includes fire-retardant layer 3.1 of second, second shielding layer 3.2, second in proper order from outside to inside around covering 3.3, the second has a plurality of second wires in covering 3.3, the second wire includes second conductor 3.5 and the second insulating layer 3.4 of cladding second conductor 3.5. The first flame-retardant layer 4.3 and the second flame-retardant layer 3.1 are both low-smoke halogen-free flame-retardant layers, and the first wrapping layer 4.5 and the second wrapping layer 3.3 are both made of mica tapes; the first shielding layer 4.4 and the second shielding layer 3.2 are both copper wire braided shielding layers; the first conductor 4.7 and the second conductor 3.5 are both copper conductors; the outer sheath 1 is made of a halogen-free high-flame-retardant polyolefin mixture.
As shown in the figure, the control cable of this application because it has a plurality of first heart yearns and a plurality of second heart yearns to can realize multiple control signal's transmission, and have independent shielding layer separately, can not produce interference each other, each heart yearn department all has 2 claddings that play fire-retardant unit in addition, be fire-retardant layer respectively and around the covering, thereby play fine flame retardant efficiency. In addition, as shown in the drawings, the cable of the present application, as shown in fig. 1, has one torsion unit at each of the upper and lower sides in the longitudinal direction, and the torsion units play a role of preventing twisting by the stainless steel band, because the stainless steel band provides a strong restoring force when receiving twisting, thereby preventing twisting at a large angle, and the tensile cords provide a tensile effect. In addition in the horizontal direction, two skeleton design units provide the support for the whole design of cable on the one hand, on the other hand, play holistic safeguard effect, better withstand voltage effect has, withstand voltage effect has side supporting part self to provide on the one hand, on the other hand has two hollow passageways that form by corresponding supporting part concatenation to provide, hollow passageway provides fine withstand voltage effect on the one hand, on the other hand makes the heat that produces can transmit in hollow passageway, thereby make the heat be difficult to gather in the part, and spread around fast, reduce the risk that the heat gathers.
In addition, the application also discloses a manufacturing method of the halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable, wherein the cable unit in the middle of the three cable units is a first cable unit, and the two cable units on the two sides of the three cable units are second cable units, and the manufacturing method comprises the following steps:
1) manufacturing the torsion-resisting unit by extrusion molding of a stainless steel belt and two tensile ropes; manufacturing the second core wire, and manufacturing the framework shaping unit by extrusion molding of the second core wire; manufacturing the first core wire, and manufacturing the first cable unit and the second cable unit by extrusion molding the first core wire;
2) pressing and holding the first cable unit and the two framework shaping units by two first pressing rollers, so that the first accommodating grooves of the two framework shaping units accommodate the first cable unit from two sides;
3) pressing the torsion-resistant unit and the second cable unit by using two second pressing roller units, so that the embedded part of the torsion-resistant unit is embedded into the limiting groove of the second cable unit;
4) pressing the two torsion resisting units by using two third pressing roller units so as to press the first whole formed in the step 2) and the two second whole formed in the step 3) together, so that the second cable is accommodated in the second accommodating groove of the framework shaping unit;
5) extruding the third integral extruded outer sheath obtained in the step 4).
As shown in fig. 5, the embedded portion of the torsion resistant unit and the limiting groove of the second cable unit can form a fit, and are combined together under the pressure of the pressing roller, so that the torsion resistant unit is not easy to fall off. In addition, the supporting part of skeleton design unit can carry out the centre gripping parcel to first cable to realize that two skeleton design units are difficult for droing to the holistic fixed of first cable unit. Next, as shown in fig. 6, the first entity and the two second entities are pressed together by a pressing roller, so that the entity is embedded together due to the elasticity of the first, second and third inner sheaths themselves, and the embedding needs only to ensure that the entity does not fall off for a short time, specifically, the execution of fig. 5 and the execution of fig. 6 and finally the extrusion of the outer sheath are executed on one production line, and after the step of fig. 5, the step of fig. 6 element downstream is executed immediately, followed by the step of the extrusion of the outer sheath downstream. On the production line, the individual components are guided in a movement by means of corresponding guide rollers.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.
Claims (10)
1. The halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable is characterized by comprising an outer sheath, wherein two framework shaping units, two anti-torsion units and three cable units are arranged in the outer sheath, each anti-torsion unit comprises a stainless steel belt, an anti-tension rope and a first inner protection layer wrapping the stainless steel belt and the anti-tension rope through extrusion molding, each first inner protection layer comprises a first wrapping portion wrapping the stainless steel belt, a second wrapping portion wrapping the anti-tension rope, a protruding portion connected with the first wrapping portion and an embedding portion connected with the protruding portion, and the first wrapping portion, the second wrapping portion, the protruding portion and the embedding portion are integrally formed through extrusion molding; the three cable units and the two torsion resistant units are arranged in a row, the three cable units are positioned between the two torsion resistant units, each cable unit comprises a second inner protective layer and two first core wires wrapped by the second inner protective layer, each second inner protective layer comprises two surrounding parts surrounding the corresponding first core wire and a first connecting part connecting the two surrounding parts, the first connecting part and the two surrounding parts are integrally formed in an extrusion molding mode, two sides of each first connecting part are recessed, and one sides, facing the torsion resistant units, of the first connecting parts of the two cable units except for the middle position are provided with limiting grooves matched with the embedding parts; the framework design unit includes that the third is protected the layer and is protected two second heart yearns of layer parcel in the third, the framework design unit includes outside protection portion and two supporting parts, the supporting part with connect through second connecting portion between the protection portion in the outside, outside protection portion, two second connecting portion and two integrative extrusion molding of supporting part, the both sides of second connecting portion all are sunken form, and two second heart yearns are located quilt in the protection portion in the outside protection portion parcel.
2. The halogen-free, low-smoke, B1-grade, flame-retardant and fire-resistant control cable according to claim 1, wherein the cable unit located at the middle of the 3 cable units is the first cable unit, and the two cable units located at the two sides are the second cable units; the outside protection part of skeleton design unit has the face the cambered surface of oversheath, be used for holding first holding tank and two second holding tanks that are used for holding second cable unit of first cable unit, first holding tank is located between two second holding tanks.
3. The halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable according to claim 2, wherein the embedding portion includes two first arc surfaces and a first connection plane connecting the two arc surfaces, the limiting groove includes two second arc surfaces for abutting against the first arc surfaces and a second connection plane connecting the two second arc surfaces, and the second connection plane is used for abutting against the first connection plane.
4. The halogen-free, low-smoke, B1-grade, flame-retardant and fire-resistant control cable according to claim 2, wherein the second connection portion of the skeletal shaping unit is used to abut against the first cable unit at a side facing the first cable unit and abut against the second cable unit at a side facing the second cable unit; the two sides of the first connecting portion of the first cable unit are abutted to the supporting portion, one side, facing the supporting portion, of the second cable unit is abutted to the supporting portion, and one side, away from the supporting portion, of the second cable unit is provided with the limiting groove.
5. The halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable according to claim 4, wherein one end of the supporting portion, which is far away from the side protection unit, is provided with a notch with a semicircular cross section, both sides of the semicircular notch are provided with strip-shaped abutting pieces, and two strip-shaped abutting pieces of each supporting portion are abutted against two strip-shaped abutting pieces of one supporting portion of another framework shaping unit.
6. The halogen-free, low-smoke, B1-grade, flame-retardant, fire-resistant and shielded control cable of claim 2, wherein each torsion resistant unit has one stainless steel band and two tensile cords, both tensile cords being located on the same side of the stainless steel band and both tensile cords being located on opposite sides of the boss.
7. The halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable according to claim 1, wherein the first core wire comprises an armor layer, a first flame-retardant layer, a first shielding layer and a first wrapping layer from outside to inside in sequence, the first wrapping layer is internally provided with a plurality of first wires, and each first wire comprises a first conductor and a first insulating layer covering the first conductor.
8. The halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable according to claim 7, wherein the second core wire comprises a second flame-retardant layer, a second shielding layer and a second wrapping layer in sequence from outside to inside, the second wrapping layer is internally provided with a plurality of second wires, and each second wire comprises a second conductor and a second insulating layer covering the second conductor.
9. The halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable according to claim 7, wherein the first flame-retardant layer and the second flame-retardant layer are both low-smoke halogen-free flame-retardant layers, and both the first wrapping layer and the second wrapping layer are made of mica tapes; the first shielding layer and the second shielding layer are copper wire braided shielding layers; the first conductor and the second conductor are both copper conductors; the outer sheath is made of halogen-free high-flame-retardant polyolefin mixture.
10. A method for manufacturing a halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable according to any one of claims 1-9, wherein the cable unit located at the middle of the three cable units is a first cable unit, and the two cable units located at the two sides of the three cable units are second cable units, the method comprising the following steps:
1) manufacturing the torsion-resisting unit by extrusion molding of a stainless steel belt and two tensile ropes; manufacturing the second core wire, and manufacturing the framework shaping unit by extrusion molding of the second core wire; manufacturing the first core wire, and manufacturing the first cable unit and the second cable unit by extrusion molding the first core wire;
2) pressing and holding the first cable unit and the two framework shaping units by two first pressing rollers, so that the first accommodating grooves of the two framework shaping units accommodate the first cable unit from two sides;
3) pressing the torsion-resistant unit and the second cable unit by using two second pressing roller units, so that the embedded part of the torsion-resistant unit is embedded into the limiting groove of the second cable unit;
4) pressing the two torsion resisting units by using two third pressing roller units so as to press the first whole formed in the step 2) and the two second whole formed in the step 3) together, so that the second cable is accommodated in the second accommodating groove of the framework shaping unit;
5) extruding the third integral extruded outer sheath obtained in the step 4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602951.2A CN114023502B (en) | 2021-12-24 | 2021-12-24 | Halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602951.2A CN114023502B (en) | 2021-12-24 | 2021-12-24 | Halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114023502A true CN114023502A (en) | 2022-02-08 |
| CN114023502B CN114023502B (en) | 2022-09-13 |
Family
ID=80069284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111602951.2A Active CN114023502B (en) | 2021-12-24 | 2021-12-24 | Halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114023502B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354510A (en) * | 2020-02-14 | 2020-06-30 | 江苏华能电缆股份有限公司 | Distributed sensing load-bearing detection cable |
| CN211670019U (en) * | 2020-05-18 | 2020-10-13 | 安徽海纳电缆集团有限公司 | Cross-linked polyethylene insulated flame-retardant fire-resistant comprehensive control cable |
| CN211719320U (en) * | 2020-03-20 | 2020-10-20 | 扬州曙光电缆股份有限公司 | High-performance high-flame-retardant waterproof special signal cable for subway light rail |
| US20200335241A1 (en) * | 2019-04-16 | 2020-10-22 | Tyco Electronics (Shanghai) Co. Ltd. | Cable and A Combined Cable |
| CN212303135U (en) * | 2020-07-29 | 2021-01-05 | 安徽航天电缆集团有限公司 | Polyvinyl chloride insulation and sheath flame-retardant control cable |
-
2021
- 2021-12-24 CN CN202111602951.2A patent/CN114023502B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200335241A1 (en) * | 2019-04-16 | 2020-10-22 | Tyco Electronics (Shanghai) Co. Ltd. | Cable and A Combined Cable |
| CN111354510A (en) * | 2020-02-14 | 2020-06-30 | 江苏华能电缆股份有限公司 | Distributed sensing load-bearing detection cable |
| CN211719320U (en) * | 2020-03-20 | 2020-10-20 | 扬州曙光电缆股份有限公司 | High-performance high-flame-retardant waterproof special signal cable for subway light rail |
| CN211670019U (en) * | 2020-05-18 | 2020-10-13 | 安徽海纳电缆集团有限公司 | Cross-linked polyethylene insulated flame-retardant fire-resistant comprehensive control cable |
| CN212303135U (en) * | 2020-07-29 | 2021-01-05 | 安徽航天电缆集团有限公司 | Polyvinyl chloride insulation and sheath flame-retardant control cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114023502B (en) | 2022-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202394585U (en) | Photoelectric composite cable | |
| CN110853817A (en) | Photoelectric composite cable with novel structure for 5G network | |
| CN104464951B (en) | Photoelectric mixed cable containing coaxial electrical unit and manufacture method thereof | |
| CN114023502B (en) | Halogen-free low-smoke B1-grade flame-retardant fire-resistant shielding type control cable | |
| CN211427889U (en) | Low-smoke halogen-free cross-linked three-core cable | |
| CN103035332A (en) | Aluminum-alloy conductor environmental-friendly flame-retardant cable | |
| CN202352368U (en) | Cluster type mine paired cable | |
| CN209388758U (en) | One kind surpassing five class unmasked network data lines | |
| CN201655414U (en) | Multicore 3G communication cable | |
| CN217740210U (en) | Efficient shielding computer cable based on triple shielding structure | |
| CN215834271U (en) | Flat type stretching-resistant low-voltage power cable | |
| CN201191520Y (en) | Copper coated aluminum dual-core flame-retardant refractory flexible electric cable | |
| CN204680463U (en) | Easily separated indoor user photoelectricity transmission cable | |
| CN209843363U (en) | Double-core hybrid cable | |
| CN202632822U (en) | Low-smoke halogen-free flame-retardant A type stainless steel armored cable | |
| CN206179594U (en) | An anti fire -retardant data cable | |
| CN213844872U (en) | Low-inductance photoelectric hybrid cable for 5G communication | |
| CN220829848U (en) | Polyethylene insulation flame-retardant polyvinyl chloride sheath shielding computer cable | |
| CN204407068U (en) | Airport static power source power cable | |
| CN220137960U (en) | Fourth generation coaxial cable for nuclear power | |
| CN217767873U (en) | Novel cable for building | |
| CN215868674U (en) | Multi-core flexible fireproof communication cable for security system | |
| CN218299458U (en) | Optical fiber composite data cable | |
| CN218069426U (en) | Power cable based on double flame-retardant structures | |
| CN216487369U (en) | Compound insulating flexible fireproof cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |