CN111192709A - Nested cable or optical cable - Google Patents
Nested cable or optical cable Download PDFInfo
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- CN111192709A CN111192709A CN202010099702.5A CN202010099702A CN111192709A CN 111192709 A CN111192709 A CN 111192709A CN 202010099702 A CN202010099702 A CN 202010099702A CN 111192709 A CN111192709 A CN 111192709A
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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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
- H01B7/0045—Cable-harnesses
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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
- H01B7/1875—Multi-layer sheaths
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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
- H01B7/189—Radial force absorbing layers providing a cushioning effect
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
Abstract
The invention belongs to the field of cables, and particularly relates to a nested cable which is composed of a plurality of electric units and an outer protection layer, and is characterized in that the outer protection layer is composed of two first protection layers and two second protection layers, each first protection layer is composed of a first protection layer main body, two first grid blocking parts and two second grid blocking parts, and the first protection layer main body is in an open semicircular arc shape; the second protective layer is composed of two third blocking parts and a second protective layer main body, the two third blocking parts are arc-shaped, and the two third blocking parts and the second protective layer main body form an open semicircle; the first protection layer and the second protection layer are mutually nested to form four first containing cavities, and at least one electric unit is arranged in each first containing cavity; the application also discloses a nested optical cable. The invention solves the problems that the outer protective layer and the reinforcing layer need to be damaged during maintenance and the electric unit is inconvenient to take out; the invention has the advantages of simple structure, good anti-seismic performance, convenient replacement of the electric unit, assembly and the like.
Description
Technical Field
The invention belongs to the field of cables, and particularly relates to a nested cable or optical cable.
Background
With the development of the national internet and the electric energy industry, the electric power and the network can not be separated from each household, so the shorter the breaking and rush-repair time of the cable and the optical cable is, the smaller the loss is.
In the prior art, CN210005762U is an embedded optical cable, which has a plurality of loose tubes, a reinforcing layer is arranged outside the loose tubes, an outer protective layer is extruded outside the reinforcing layer, and at least one optical communication component is arranged inside the loose tube; the novel fiber loosening sleeve is characterized in that the loosening sleeve is fan-shaped, the loosening sleeve is composed of a loosening sleeve main body, a clamping unit and a clamping rib, a fiber containing cavity is formed in the loosening sleeve main body, one end of the clamping rib is connected with one straight edge of the loosening sleeve main body, the other end of the clamping rib is connected with the clamping unit, a clamping groove and a rib containing groove are formed in the loosening sleeve main body at the corresponding position of one side of the other straight edge, the clamping unit of the previous loosening sleeve is embedded into the clamping groove of the next loosening sleeve, and the clamping unit of the last loosening sleeve is embedded into the clamping groove of the first loosening sleeve.
The above prior art has the following disadvantages: when the optical cable is maintained, the outer protective layer and the reinforcing layer need to be damaged, and the electric unit is inconvenient to take out.
Disclosure of Invention
In order to solve the above problems, the present invention discloses a nested cable or optical cable, which is implemented by the following technical solutions.
A nested cable comprises a plurality of electric units and an outer protective layer, wherein each electric unit comprises an electric conductor and an insulating layer extruded outside the electric conductor, and the nested cable is characterized in that the outer protective layer comprises two first protective layers and two second protective layers, each first protective layer comprises a first protective layer main body, two first grid blocking parts and two second grid blocking parts, each first protective layer main body is in a semicircular arc shape, each first protective layer main body and each first grid blocking part form an open semicircular shape, each second grid blocking part is positioned at two ends of each first protective layer main body, and a first embedded groove is formed between each two first grid blocking parts; the second protective layer is composed of two third grid blocking parts and a second protective layer main body, the two third grid blocking parts are arc-shaped, the two third grid blocking parts and the second protective layer main body form an open semicircle, and a second embedded groove is formed between the two third grid blocking parts; two first protective layers are oppositely arranged and spliced into a circle and are respectively positioned at the upper side and the lower side, two second protective layers are oppositely arranged and spliced into a circle and are arranged in the two first protective layers, two second protective layer main bodies are embedded into the two first embedded grooves, two first grid blocking parts corresponding to the two first protective layers are embedded into the second embedded grooves, two third grid blocking parts are positioned on the inner side of the circular arc of the first protective layer main bodies, the first grid blocking parts, the third grid blocking parts and the second protective layer main bodies form four first containing cavities, and at least one electric unit is arranged in each first containing cavity.
A nested optical cable is composed of a plurality of optical communication components and an outer protective layer, wherein each optical communication component is composed of a loose tube and at least one optical fiber positioned in the loose tube, and the optical cable is characterized in that the outer protective layer is composed of two first protective layers and two second protective layers, each first protective layer is composed of a first protective layer main body, two first grid blocking components and two second grid blocking components, each first protective layer main body is in a semicircular arc shape, the first protective layer main body and the two first grid blocking components form an open semicircular shape, the second grid blocking components are positioned at two ends of the first protective layer main body, and a first embedded groove is formed between the two first grid blocking components; the second protective layer is composed of two third grid blocking parts and a second protective layer main body, the two third grid blocking parts are arc-shaped, the two third grid blocking parts and the second protective layer main body form an open semicircle, and a second embedded groove is formed between the two third grid blocking parts; two first protective layers are oppositely arranged and spliced into a circle and are respectively positioned at the upper side and the lower side, two second protective layers are oppositely arranged and spliced into a circle and are arranged in the two first protective layers, two second protective layer main bodies are embedded into the two first embedded grooves, two first grid blocking parts corresponding to the two first protective layers are embedded into the second embedded grooves, two third grid blocking parts are positioned on the inner side of the circular arc of the first protective layer main bodies, and the first grid blocking parts, the third grid blocking parts and the second protective layer main bodies form four first accommodating cavities.
The nested cable or optical cable is characterized in that a third buffer strip is arranged between the third barrier part and the first protective layer main body, a second buffer strip is arranged between the first barrier parts corresponding to two adjacent first protective layers, when the two first protective layers move towards two sides, the distance between the two second barrier parts corresponding to the two first protective layers is smaller than the width of the second buffer strip, the second buffer strip can be prevented from being separated, the first buffer strip is arranged between the two adjacent second protective layers, and the first buffer strip, the second buffer strip and the third buffer strip have elasticity.
A nested cable comprises a plurality of electric units and an outer protective layer, wherein each electric unit comprises an electric conductor and an insulating layer extruded outside the electric conductor, and the nested cable is characterized in that the outer protective layer comprises two first protective layers and a second protective layer, each first protective layer comprises a first protective layer main body, two first grid blocking parts and two second grid blocking parts, each first protective layer main body is in a semicircular arc shape, each first protective layer main body and each two first grid blocking parts form an open semicircular shape, each second grid blocking part is positioned at two ends of each first protective layer main body, and a first embedded groove is formed between each two first grid blocking parts; the second protective layer is composed of two third grid blocking parts and a second protective layer main body, the two third grid blocking parts are arc-shaped, two ends of the second protective layer main body are respectively connected to the two third grid blocking parts, and two second embedded grooves are formed at two ends of the two third grid blocking parts; two first protective layers are oppositely arranged and spliced to form a circle and are respectively positioned on the upper side and the lower side, the second protective layers are arranged in the two first protective layers, the main bodies of the second protective layers are embedded into the two first embedded grooves, the two first grid blocking parts corresponding to the two first protective layers are embedded into the second embedded grooves, the two third grid blocking parts are positioned on the inner sides of the circular arcs of the main bodies of the first protective layers, the first grid blocking parts, the third grid blocking parts and the main bodies of the second protective layers form four first containing cavities, and at least one electric unit is arranged in each first containing cavity.
A nested optical cable is composed of a plurality of optical communication components and an outer protective layer, wherein each optical communication component is composed of a loose tube and at least one optical fiber positioned in the loose tube, and the optical cable is characterized in that the outer protective layer is composed of two first protective layers and a second protective layer, each first protective layer is composed of a first protective layer main body, two first grid blocking components and two second grid blocking components, each first protective layer main body is in a semicircular arc shape, the first protective layer main body and the two first grid blocking components form an open semicircular shape, the second grid blocking components are positioned at two ends of the first protective layer main body, and a first embedded groove is formed between the two first grid blocking components; the second protective layer is composed of two third grid blocking parts and a second protective layer main body, the two third grid blocking parts are arc-shaped, two ends of the second protective layer main body are respectively connected to the two third grid blocking parts, and two second embedded grooves are formed at two ends of the two third grid blocking parts; two first protective layers are oppositely arranged and spliced to form a circle and are respectively positioned on the upper side and the lower side, the second protective layers are arranged in the two first protective layers, the main bodies of the second protective layers are embedded into the two first embedded grooves, the two first grid blocking parts corresponding to the two first protective layers are embedded into the second embedded grooves, the two third grid blocking parts are positioned on the inner sides of the circular arcs of the main bodies of the first protective layers, the first grid blocking parts, the third grid blocking parts and the main bodies of the second protective layers form four first containing cavities, and at least one optical communication part is arranged in each first containing cavity.
Two ends of the second protective layer main body are respectively composed of a plurality of branches, two adjacent branches and the third grid blocking component respectively form a closed second containing cavity, at least one electric unit is arranged in the second containing cavity, the number of cores of the electric unit is increased, and the transmission density of electric energy is increased.
The nested cable or optical cable is characterized in that a third buffer strip is arranged between the third barrier part and the first protective layer main body, a second buffer strip is arranged between the first barrier parts corresponding to two adjacent first protective layers, when the two first protective layers move towards two sides, the distance between the two second barrier parts corresponding to the two first protective layers is smaller than the width of the second buffer strip, the second buffer strip can be prevented from being separated, and the second buffer strip and the third buffer strip are elastic.
The nested optical cable in the embodiment is characterized in that the optical fiber is G.652 type, G.653 type, G.654 type, G.655 type, G.656 type, G.657 type, A1a type, A1b type or A1c type.
The nested optical cable according to the above embodiment is characterized in that the loose tube is made of modified polypropylene or polybutylene terephthalate.
The nested cable in the above embodiment is characterized in that the conductor is a copper wire or an aluminum wire.
The nested cable according to the above embodiment is characterized in that the insulating layer is made of polyvinyl chloride or high density polyethylene or medium density polyethylene or crosslinked polyethylene.
The nested cable or optical cable of the above embodiment, wherein the second buffer strip is made of silica gel or foam.
The nested cable or optical cable is characterized in that the third buffer strip is made of silica gel or foamed plastic.
A nested cable or cable as described above, wherein said first protective layer is integrally formed.
A nested cable or cable as claimed in any preceding claim wherein the second protective layer is integrally formed.
In the invention, the outer protective layer consists of two first protective layers and one second protective layer, thus providing double protection for the internal electric unit or optical communication component; the first buffer strip, the second buffer strip and the third buffer strip are additionally arranged in the cable or the optical cable, so that the pressure resistance and the shock resistance of the cable or the optical cable are enhanced; because the first protective layer and the second protective layer are embedded with each other, the first protective layer and the second protective layer can move in a limited way, when the electric unit or the optical communication part in the first cavity is damaged and needs to be replaced, the two first protective layers can move towards two sides, so that the damaged electric unit or optical communication part can be taken out conveniently, and the maintenance is convenient; meanwhile, the cable or the optical cable can be assembled on a construction site, and construction is convenient.
Therefore, the invention has the advantages of simple structure, good anti-seismic performance, convenient replacement of the electric unit, assembly and the like.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 3 is a schematic structural view of a first protection component in embodiment 1 or embodiment 2 or embodiment 3 of the present invention.
Fig. 4 is a schematic structural view of a second protective member according to embodiment 1 or embodiment 3 of the present invention.
Fig. 5 is a schematic structural view of a second protective member in embodiment 2 of the present invention.
Fig. 6 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 7 is a schematic structural diagram of embodiment 4 of the present invention.
In the figure: 1. the optical fiber protection device comprises a first protection layer, 11, a first protection layer main body, 13, a first embedded groove, 14, a first blocking part, 15, a second blocking part, 2, a second protection layer, 21, a third blocking part, 22, a second protection layer main body, 24, a second embedded groove, 3, a first buffer strip, 4, a second buffer strip, 5, an electric unit, 51, an insulating layer, 52, an electric conductor, 6, an optical communication part, 61, a loose tube, 62, an optical fiber and 7, a third buffer strip.
Detailed Description
Example 1
Referring to fig. 1, 3 and 4, a nested cable is composed of four electrical units 5 and an outer sheath, wherein the electrical units 5 are composed of electrical conductors 52 and insulation layers 51 extruded outside the electrical conductors 52, and is characterized in that the outer sheath is composed of two first protective layers 1 and two second protective layers 2, the first protective layers 1 are composed of a first protective layer main body 11, two first barrier members 14 and two second barrier members 15, the first protective layer main body 11 is in a semicircular arc shape, the first protective layer main body 11 and the two first barrier members 14 form an open semicircular shape, the second barrier members 15 are positioned at two ends of the first protective layer main body 11, and a first embedded groove 13 is formed between the two first barrier members 14; the second protective layer 2 is composed of two third blocking parts 21 and a second protective layer main body 22, the two third blocking parts 21 are arc-shaped, the two third blocking parts 21 and the second protective layer main body 2 form an open semicircle, and a second embedded groove 24 is formed between the two third blocking parts 21; the two first protection layers 1 are oppositely arranged and spliced into a circle and are respectively positioned at the upper side and the lower side, the two second protection layers 2 are oppositely arranged and spliced into a circle and are positioned in the two first protection layers 1, the two second protection layer main bodies 22 are embedded into the two first embedded grooves 13, the two first blocking parts 14 corresponding to the two first protection layers 1 are embedded into the second embedded grooves 24, the two third blocking parts 21 are positioned at the inner side of the circular arc of the first protection layer main body 11, the first blocking parts 14, the third blocking parts 21 and the second protection layer main bodies 22 form four first containing cavities, the electric unit 5 is positioned in the first containing cavities, a third buffer strip 7 is arranged between the third blocking part 21 and the first protection layer main body 11, a second buffer strip 4 is arranged between the first blocking parts 14 corresponding to the two adjacent first protection layers 1, when the two first protection layers 1 move towards two sides, the distance between two second lattice blocking parts 15 corresponding to the two first protective layers 1 is smaller than the width of the second buffer strips 4, so that the second buffer strips 4 can be prevented from being separated, the first buffer strips 3 are arranged between the two adjacent second protective layers 2, and the first buffer strips 3, the second buffer strips 4 and the third buffer strips 7 have elasticity.
The nested cable according to the above embodiment is characterized in that the conductor 52 is a copper wire or an aluminum wire.
The nested cable according to the above embodiment is characterized in that the insulating layer 51 is made of polyvinyl chloride or high density polyethylene or medium density polyethylene or crosslinked polyethylene.
The nested cable or optical cable according to the above embodiment is characterized in that the second buffer strip 4 is made of silica gel or foam plastic.
Example 2
Referring to fig. 2, 3 and 5, a nested cable is composed of four electrical units 5 and an outer sheath, wherein the electrical units 5 are composed of electrical conductors 52 and insulation layers 51 extruded outside the electrical conductors 52, and is characterized in that the outer sheath is composed of two first protective layers 1 and a second protective layer 2, the first protective layers 1 are composed of a first protective layer main body 11, two first barrier members 14 and two second barrier members 15, the first protective layer main body 11 is in a semicircular arc shape, the first protective layer main body 11 and the two first barrier members 14 form an open semicircular shape, the second barrier members 15 are positioned at two ends of the first protective layer main body 11, and a first embedded groove 13 is formed between the two first barrier members 14; the second protective layer 2 is composed of two third blocking parts 21 and a second protective layer main body 22, the two third blocking parts 21 are arc-shaped, two ends of the second protective layer main body 22 are respectively connected to the two third blocking parts 21, and two second embedded grooves 24 are formed at two ends of the two third blocking parts 21; the two first protection layers 1 are oppositely arranged and spliced into a circle and are respectively positioned at the upper side and the lower side, the second protection layer 2 is arranged in the two first protection layers 1, the second protection layer main body 22 is embedded into the two first embedded grooves 13, the two first blocking parts 14 corresponding to the two first protection layers 1 are embedded into the second embedded groove 24, the two third blocking parts 21 are positioned at the inner side of the circular arc of the first protection layer main body 11, the first blocking parts 14, the third blocking parts 21 and the second protection layer main body 22 form four first containing cavities, the electric unit 5 is positioned in the first containing cavity, a third buffer strip 7 is arranged between the third blocking parts 21 and the first protection layer main body 11, a second buffer strip 4 is arranged between the first blocking parts 14 corresponding to the two adjacent first protection layers 1, when the two first protection layers 1 move towards two sides, the distance between the two second blocking parts 15 corresponding to the two first protection layers 1 is smaller than the width of the second buffer strip 4, the second buffering strip 4 can be prevented from being separated, and the first buffering strip 3 and the third buffering strip 7 have elasticity.
The nested cable according to the above embodiment is characterized in that the conductor 52 is a copper wire or an aluminum wire.
The nested cable according to the above embodiment is characterized in that the insulating layer 51 is made of polyvinyl chloride or high density polyethylene or medium density polyethylene or crosslinked polyethylene.
According to the nested cable, the two second protective layers 2 are integrated into one, the second buffer strips 4 are omitted, raw materials of the cable are saved, the material cost is saved, the outer diameter of the optical cable is reduced, the same disc can accommodate longer cables, the weight of the cable is reduced, and the transportation cost is saved; and meanwhile, the production steps of the optical cable are simplified.
Example 3
Referring to fig. 6, 3 and 4, a nested optical cable is composed of four optical communication components 6 and an outer sheath, wherein the optical communication components 6 are composed of a loose tube 61 and at least one optical fiber 62 positioned in the loose tube 61, and is characterized in that the outer sheath is composed of two first protective layers 1 and two second protective layers 2, the first protective layers 1 are composed of a first protective layer main body 11, two first barrier components 14 and two second barrier components 15, the first protective layer main body 11 is in a semicircular arc shape, the first protective layer main body 11 and the two first barrier components 14 form an open semicircular shape, the second barrier components 15 are positioned at two ends of the first protective layer main body 11, and a first embedded groove 13 is formed between the two first barrier components 14; the second protective layer 2 is composed of two third blocking parts 21 and a second protective layer main body 22, the two third blocking parts 21 are arc-shaped, the two third blocking parts 21 and the second protective layer main body 2 form an open semicircle, and a second embedded groove 24 is formed between the two third blocking parts 21; the two first protection layers 1 are oppositely arranged and spliced into a circle and are respectively positioned at the upper side and the lower side, the second protection layers 2 are oppositely arranged and spliced into a circle and are arranged in the two first protection layers 1, the two second protection layer main bodies 22 are embedded into the two first embedded grooves 13, the two first blocking parts 14 corresponding to the two first protection layers 1 are embedded into the second embedded grooves 24, the two third blocking parts 21 are positioned at the inner side of the circular arc of the first protection layer main body 11, the first blocking parts 14, the third blocking parts 21 and the second protection layer main bodies 22 form four first containing cavities, the optical communication part 6 is positioned in the first containing cavity, a third buffer strip 7 is arranged between the third blocking part 21 and the first protection layer main body 11, a second buffer strip 4 is arranged between the first blocking parts 14 corresponding to the two adjacent first protection layers 1, when the two first protection layers 1 move towards two sides, the distance between two second lattice blocking parts 15 corresponding to the two first protective layers 1 is smaller than the width of the second buffer strips 4, so that the second buffer strips 4 can be prevented from being separated, the first buffer strips 3 are arranged between the two adjacent second protective layers 2, and the first buffer strips 3, the second buffer strips 4 and the third buffer strips 7 have elasticity.
The nested cable or optical cable according to the above embodiment is characterized in that the second buffer strip 4 is made of silica gel or foam plastic.
The nested optical cable of the above embodiment is characterized in that the optical fiber 62 is G.652 type, G.653 type, G.654 type, G.655 type, G.656 type, G.657 type, A1a type, A1b type or A1c type.
The nested optical cable according to the above embodiment is characterized in that the material of the loose tube 61 is modified polypropylene or polybutylene terephthalate.
Example 4
Referring to fig. 7 and 3, a nested cable is composed of six electrical units 5 and an outer sheath, wherein the electrical units 5 are composed of electrical conductors 52 and insulation layers 51 extruded outside the electrical conductors 52, and is characterized in that the outer sheath is composed of two first protective layers 1 and a second protective layer 2, the first protective layers 1 are composed of a first protective layer main body 11, two first barrier members 14 and two second barrier members 15, the first protective layer main body 11 is in a semicircular arc shape, the first protective layer main body 11 and the two first barrier members 14 form an open semicircular shape, the second barrier members 15 are located at two ends of the first protective layer main body 11, and a first embedded groove 13 is formed between the two first barrier members 14; the second protective layer 2 is composed of two third barrier parts 21 and a second protective layer main body 22, the two third barrier parts 21 are arc-shaped, two ends of the second protective layer main body 22 are respectively formed with two branches and are respectively connected to the two third barrier parts 21, the two branches and the third barrier parts 21 form a closed second containing cavity, and two second embedded grooves 24 are formed at two ends of the two third barrier parts 21; the two first protection layers 1 are oppositely arranged and spliced into a circle and are respectively positioned at the upper side and the lower side, the second protection layer 2 is arranged in the two first protection layers 1, the second protection layer main body 22 is embedded into the two first embedded grooves 13, the two first blocking parts 14 corresponding to the two first protection layers 1 are embedded into the second embedded groove 24, the two third blocking parts 21 are positioned at the inner side of the circular arc of the first protection layer main body 11, the first blocking parts 14, the third blocking parts 21 and the second protection layer main body 22 form four first containing cavities, the electric unit 5 is positioned in the first containing cavity and the second containing cavity, a third buffer strip 7 is arranged between the third blocking parts 21 and the first protection layer main body 11, a second buffer strip 4 is arranged between the first blocking parts 14 corresponding to the two adjacent first protection layers 1, when the two first protection layers 1 move towards two sides, the distance between the two second blocking parts 15 corresponding to the two first protection layers 1 is smaller than the width of the second buffer strip 4, the second buffering strip 4 can be prevented from being separated, and the first buffering strip 3 and the third buffering strip 7 have elasticity.
The nested cable according to the above embodiment is characterized in that the conductor 52 is a copper wire or an aluminum wire.
The nested cable according to the above embodiment is characterized in that the insulating layer 51 is made of polyvinyl chloride or high density polyethylene or medium density polyethylene or crosslinked polyethylene.
According to the nested cable, the two second protective layers 2 are integrated into one, the second buffer strips 4 are omitted, raw materials of the cable are saved, the material cost is saved, the outer diameter of the optical cable is reduced, the same disc can accommodate longer cables, the weight of the cable is reduced, and the transportation cost is saved; and meanwhile, the production steps of the optical cable are simplified.
The nested cable in the embodiment increases the number of cores of the electric unit and increases the transmission density of electric energy.
A nested cable or optical cable according to any of the embodiments above, wherein the first buffer strip 3 is made of silica gel or foam.
A nested cable or optical cable according to any of the embodiments above, wherein the third buffer strip 7 is made of silica gel or foam.
A nested cable or cable according to any of the above embodiments, wherein the first protective layer 1 is integrally formed.
A nested cable or cable according to any of the above embodiments, wherein the second protective layer 2 is integrally formed.
In the invention, the outer protective layer is composed of two first protective layers 1 and one second protective layer 2, and provides double protection for the internal electric unit 5 or the optical communication component 6; the first buffer strip 3, the second buffer strip 4 and the third buffer strip 7 are additionally arranged in the cable or the optical cable, so that the pressure resistance and the shock resistance of the cable or the optical cable are enhanced; because the first protective layer 1 and the second protective layer 2 are embedded into each other, the first protective layer 1 and the second protective layer 2 can move in a limited way, when the electric unit 5 or the optical communication component 6 in the first cavity is damaged and needs to be replaced, the two first protective layers 1 can move towards two sides, so that the damaged electric unit 5 or optical communication component 6 can be taken out conveniently, and the maintenance is convenient; meanwhile, the cable or the optical cable can be assembled on a construction site, and construction is convenient.
The best laying mode of the invention is straight laying, and the length is not more than 500 m.
The invention solves the problems that the outer protective layer and the reinforcing layer need to be damaged during maintenance and the electric unit is inconvenient to take out.
The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. A nested cable, which is composed of a plurality of electric units (5) and an outer sheath, wherein the electric units (5) are composed of electric conductors (52) and insulating layers (51) extruded outside the electric conductors (52), and is characterized in that the outer sheath is composed of two first protective layers (1) and two second protective layers (2), the first protective layer (1) is composed of a first protective layer main body (11), two first barrier parts (14) and two second barrier parts (15), the first protective layer main body (11) is in a semicircular arc shape, the first protective layer main body (11) and the two first barrier parts (14) form an open semicircular shape, the second barrier parts (15) are positioned at two ends of the first protective layer main body (11), and a first embedded groove (13) is formed between the two first barrier parts (14); the second protective layer (2) is composed of two third grid blocking parts (21) and a second protective layer main body (22), the two third grid blocking parts (21) are arc-shaped, the two third grid blocking parts (21) and the second protective layer main body (2) form an open semicircle, and a second embedded groove (24) is formed between the two third grid blocking parts (21); two first protective layers (1) are oppositely arranged and spliced into a circle and are respectively positioned on the upper side and the lower side, two second protective layers (2) are oppositely arranged and spliced into a circle and are arranged inside the two first protective layers (1), two second protective layer main bodies (22) are embedded into two first embedded grooves (13), two first grid blocking parts (14) corresponding to the two first protective layers (1) are embedded into a second embedded groove (24), two third grid blocking parts (21) are positioned on the inner side of the circular arc of the first protective layer main body (11), the first grid blocking parts (14), the third grid blocking parts (21) and the second protective layer main body (22) form four first accommodating cavities, and at least one electric unit (5) is arranged in each first accommodating cavity.
2. A nested cable, which is composed of a plurality of electric units (5) and an outer sheath, wherein the electric units (5) are composed of electric conductors (52) and insulating layers (51) extruded outside the electric conductors (52), characterized in that the outer sheath is composed of two first protective layers (1) and a second protective layer (2), the first protective layer (1) is composed of a first protective layer main body (11), two first barrier parts (14) and two second barrier parts (15), the first protective layer main body (11) is in a semicircular arc shape, the first protective layer main body (11) and the two first barrier parts (14) form an open semicircular shape, the second barrier parts (15) are positioned at both ends of the first protective layer main body (11), and a first embedded groove (13) is formed between the two first barrier parts (14); the second protective layer (2) is composed of two third grid blocking parts (21) and a second protective layer main body (22), the two third grid blocking parts (21) are arc-shaped, two ends of the second protective layer main body (22) are respectively connected to the two third grid blocking parts (21), and two second embedded grooves (24) are formed at two ends of the two third grid blocking parts (21); two first protective layer (1) are placed relatively and are spliced into a circle, and are located both sides from top to bottom respectively, inside two first protective layer (1) were arranged in second protective layer (2), in two first embedded grooves (13) were embedded in second protective layer main part (22), two first check that two first protective layer (1) correspond kept off part (14) embedding second embedded groove (24), two third check keep off part (21) and are located the circular arc inboard of first protective layer main part (11), first check keep off part (14), third check keep off part (21) and second protective layer main part (22) and form four first appearance chambeies, first appearance intracavity is equipped with at least one electric unit (5).
3. A nested cable according to claim 1 or claim 2, wherein a third buffer strip (7) is provided between the third barrier member (21) and the first protective layer main body (11), a second buffer strip (4) is provided between the first barrier members (14) corresponding to two adjacent first protective layers (1), when the two first protective layers (1) move to both sides, the distance between the two second barrier members (15) corresponding to two first protective layers (1) is smaller than the width of the second buffer strip (4), a first buffer strip (3) is provided between two adjacent second protective layers (2), and the first buffer strip (3), the second buffer strip (4) and the third buffer strip (7) have elasticity.
4. A nested cable according to claim 3, characterized in that the two ends of the second protective layer body (22) are respectively formed by a plurality of prongs, and two adjacent prongs and the third barrier member (21) respectively form a closed second cavity in which at least one electrical unit (5) is arranged.
5. A nested cable according to claim 4, characterized in that a third buffer strip (7) is arranged between the third barrier part (21) and the first protective layer main body (11), a second buffer strip (4) is arranged between the first barrier parts (14) corresponding to two adjacent first protective layers (1), when the two first protective layers (1) move to both sides, the distance between the two second barrier parts (15) corresponding to the two first protective layers (1) is smaller than the width of the second buffer strip (4), and the second buffer strip (4) and the third buffer strip (7) have elasticity.
6. A nested optical cable, which is composed of a plurality of optical communication parts (6) and an outer sheath, wherein the optical communication parts (6) are composed of a loose tube (61) and at least one optical fiber (62) positioned in the loose tube (61), characterized in that the outer sheath is composed of two first protective layers (1) and two second protective layers (2), the first protective layer (1) is composed of a first protective layer main body (11), two first barrier parts (14) and two second barrier parts (15), the first protective layer main body (11) is in a semicircular arc shape, the first protective layer main body (11) and the two first barrier parts (14) form an open semicircular shape, the second barrier parts (15) are positioned at both ends of the first protective layer main body (11), and a first embedded groove (13) is formed between the two first barrier parts (14); the second protective layer (2) is composed of two third grid blocking parts (21) and a second protective layer main body (22), the two third grid blocking parts (21) are arc-shaped, the two third grid blocking parts (21) and the second protective layer main body (2) form an open semicircle, and a second embedded groove (24) is formed between the two third grid blocking parts (21); two first protective layer (1) are placed relatively and are spliced into a circle, and are located both sides from top to bottom respectively, two second protective layer (2) are placed relatively and are spliced into a circle, and place inside two first protective layer (1), and two second protective layer main parts (22) are embedded into two first embedded grooves (13), and two first check that two first protective layer (1) correspond keep off parts (14) and imbed in second embedded groove (24), and two third check keep off parts (21) are located the circular arc inboard of first protective layer main part (11), and first check keep off parts (14), third check keep off parts (21) and second protective layer main part (22) form four first appearance chambeies.
7. A nested optical cable, which is composed of a plurality of optical communication parts (6) and an outer sheath, wherein the optical communication parts (6) are composed of a loose tube (61) and at least one optical fiber (62) positioned in the loose tube (61), characterized in that the outer sheath is composed of two first protective layers (1) and one second protective layer (2), the first protective layer (1) is composed of a first protective layer main body (11), two first barrier parts (14) and two second barrier parts (15), the first protective layer main body (11) is in a semicircular arc shape, the first protective layer main body (11) and the two first barrier parts (14) form an open semicircular shape, the second barrier parts (15) are positioned at both ends of the first protective layer main body (11), and a first embedded groove (13) is formed between the two first barrier parts (14); the second protective layer (2) is composed of two third grid blocking parts (21) and a second protective layer main body (22), the two third grid blocking parts (21) are arc-shaped, two ends of the second protective layer main body (22) are respectively connected to the two third grid blocking parts (21), and two second embedded grooves (24) are formed at two ends of the two third grid blocking parts (21); two first protective layer (1) are placed relatively and are spliced into a circle, and are located both sides from top to bottom respectively, inside two first protective layer (1) were arranged in second protective layer (2), in two first embedded grooves (13) were embedded in second protective layer main part (22), two first check that two first protective layer (1) correspond kept off part (14) embedding second embedded groove (24), two third check keep off part (21) are located the circular arc inboard of first protective layer main part (11), first check keep off part (14), third check keep off part (21) and second protective layer main part (22) and form four first appearance chambeies, first appearance intracavity is equipped with at least one optical communication part (6).
8. A nested optical cable according to claim 6 or claim 7, characterized in that a third buffer strip (7) is arranged between the third barrier member (21) and the first protective layer main body (11), a second buffer strip (4) is arranged between the first barrier members (14) corresponding to two adjacent first protective layers (1), when the two first protective layers (1) move to both sides, the distance between the two second barrier members (15) corresponding to two first protective layers (1) is smaller than the width of the second buffer strip (4), a first buffer strip (3) is arranged between two adjacent second protective layers (2), and the first buffer strip (3), the second buffer strip (4) and the third buffer strip (7) have elasticity.
9. A nested fiber optic cable according to claim 8, characterized in that the second protective layer body (22) is formed at each of its ends by a plurality of prongs, and two adjacent prongs and the third barrier member (21) each form a second enclosed cavity in which at least one electrical unit (5) is disposed.
10. A nested optical cable according to claim 9, wherein a third buffer strip (7) is arranged between the third barrier member (21) and the first protective layer main body (11), a second buffer strip (4) is arranged between the first barrier members (14) corresponding to two adjacent first protective layers (1), when the two first protective layers (1) move to both sides, the distance between the two second barrier members (15) corresponding to the two first protective layers (1) is smaller than the width of the second buffer strip (4), and the second buffer strip (4) and the third buffer strip (7) have elasticity; the insulating layer (51) is made of polyvinyl chloride or high-density polyethylene or medium-density polyethylene or crosslinked polyethylene; the first protective layer (1) is integrally formed; the second protective layer (2) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099702.5A CN111192709A (en) | 2020-02-18 | 2020-02-18 | Nested cable or optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099702.5A CN111192709A (en) | 2020-02-18 | 2020-02-18 | Nested cable or optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111192709A true CN111192709A (en) | 2020-05-22 |
Family
ID=70710414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010099702.5A Withdrawn CN111192709A (en) | 2020-02-18 | 2020-02-18 | Nested cable or optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111192709A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781693A (en) * | 2020-08-08 | 2020-10-16 | 常熟梁方智能技术有限公司 | Nested optical cable of self-supporting structure and cable |
| CN112805605A (en) * | 2020-08-22 | 2021-05-14 | 常熟高通智能装备有限公司 | Spliced framework optical cable and cable |
| CN113671651A (en) * | 2021-09-06 | 2021-11-19 | 江苏长飞中利光纤光缆有限公司 | Layer-stranded ribbon optical cable for communication |
| CN116609904A (en) * | 2023-07-17 | 2023-08-18 | 江苏永鼎股份有限公司 | Butterfly-shaped lead-in optical cable with compact structure |
| CN117784341A (en) * | 2024-02-26 | 2024-03-29 | 常熟市邦知光电科技有限公司 | Twelve-unit butterfly-shaped lead-in unit optical cable |
-
2020
- 2020-02-18 CN CN202010099702.5A patent/CN111192709A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781693A (en) * | 2020-08-08 | 2020-10-16 | 常熟梁方智能技术有限公司 | Nested optical cable of self-supporting structure and cable |
| CN112805605A (en) * | 2020-08-22 | 2021-05-14 | 常熟高通智能装备有限公司 | Spliced framework optical cable and cable |
| CN112805605B (en) * | 2020-08-22 | 2024-06-07 | 常熟高通智能装备有限公司 | Spliced skeleton optical cable and cable |
| CN113671651A (en) * | 2021-09-06 | 2021-11-19 | 江苏长飞中利光纤光缆有限公司 | Layer-stranded ribbon optical cable for communication |
| CN116609904A (en) * | 2023-07-17 | 2023-08-18 | 江苏永鼎股份有限公司 | Butterfly-shaped lead-in optical cable with compact structure |
| CN116609904B (en) * | 2023-07-17 | 2023-09-22 | 江苏永鼎股份有限公司 | Butterfly-shaped lead-in optical cable with compact structure |
| CN117784341A (en) * | 2024-02-26 | 2024-03-29 | 常熟市邦知光电科技有限公司 | Twelve-unit butterfly-shaped lead-in unit optical cable |
| CN117784341B (en) * | 2024-02-26 | 2024-04-26 | 常熟市邦知光电科技有限公司 | Twelve-unit butterfly-shaped lead-in unit optical cable |
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Application publication date: 20200522 |
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