CN219590571U

CN219590571U - Thermoplastic composite optical cable reinforcing core

Info

Publication number: CN219590571U
Application number: CN202320692248.3U
Authority: CN
Inventors: 刘新
Original assignee: Jiangsu Hongbo New Materials Co ltd
Current assignee: Jiangsu Hongbo New Materials Co ltd
Priority date: 2023-04-01
Filing date: 2023-04-01
Publication date: 2023-08-25
Anticipated expiration: 2033-04-01

Abstract

The utility model relates to the technical field of optical cables, in particular to a thermoplastic composite material optical cable reinforcing core, which comprises a cable core layer, wherein the outer wall of the cable core layer is provided with a fixing part, the outer wall of the fixing part is fixedly provided with a reinforcing layer, and the outer wall of the reinforcing layer is fixedly provided with a rubber outer layer.

Description

Thermoplastic composite optical cable reinforcing core

Technical Field

The utility model relates to the technical field of optical cables, in particular to a thermoplastic composite optical cable reinforced core.

Background

Optical cables are manufactured to meet optical, mechanical or environmental performance specifications by using one or more optical fibers disposed in a jacket as a transmission medium and used individually or in groups, and are composed of optical fibers (such as thin glass fibers of hair) and plastic protective sleeves and plastic sheaths, without metals such as gold, silver, copper and aluminum.

The cable core inside the existing optical cable is made of glass fiber, so that the bending performance of the optical cable is weaker, and meanwhile, the bending resistance and the stretching resistance of the optical cable are required to be enhanced when the existing optical cable is used, however, the existing optical cable generally consists of a cable core, reinforcing steel wires, fillers, a sheath and the like, so that the bending resistance and the stretching resistance of the optical cable can be enhanced only through the reinforcing steel wires, and the single reinforcing steel wire layer has poor reinforcing effect on the bending resistance and the stretching resistance of the optical cable, so that the existing optical cable has a certain disadvantage.

In view of the above, it is desirable to provide a thermoplastic composite cable reinforcing core.

Disclosure of Invention

Therefore, the utility model provides a thermoplastic composite material optical cable reinforcing core to solve the problems that the existing optical cable generally consists of a cable core, reinforcing steel wires, fillers, a sheath and the like, so that the bending resistance and the stretching resistance of the optical cable can be enhanced only by the arranged reinforcing steel wires, and the reinforcing effect of a single reinforcing steel wire layer on the bending resistance and the stretching resistance of the optical cable is poor, so that certain defects exist.

In order to achieve the above object, the present utility model provides the following technical solutions: the thermoplastic composite optical cable reinforcing core comprises a cable core layer, wherein a fixing part is arranged on the outer wall of the cable core layer, a reinforcing layer is fixed on the outer wall of the fixing part, and a rubber outer layer is fixed on the outer wall of the reinforcing layer.

Preferably, the number of cable sandwich layer setting is seven, fixed part includes first inner liner and second inner liner, the second inner liner sets up the inside at first inner liner.

Preferably, a supporting frame is fixed between the inner wall of the first inner liner layer and the outer wall of the second inner liner layer, the number of the supporting frames is six, and the six supporting frames are arranged on the inner wall of the first inner liner layer in a ring-shaped array mode.

Preferably, six cable sandwich layers are arranged between the adjacent supporting frames, one cable sandwich layer is arranged on the inner wall of the second inner liner layer, the six cable sandwich layers are fixedly connected with the inner wall of the adjacent supporting frames through sealing filling layers, and the outer wall of the cable sandwich layer is fixedly connected with the inner wall of the second inner liner layer through the sealing filling layers.

Preferably, the inner wall of the reinforcing layer is fixedly connected with the outer wall of the first inner liner layer, and the thickness of the reinforcing layer is the same as that of the first inner liner layer.

Preferably, a halogen-free flame retardant layer is arranged between the reinforcing layer and the outer wall of the rubber outer layer, the outer wall and the inner wall of the halogen-free flame retardant layer are fixedly connected with the outer wall of the rubber outer layer and the outer wall of the reinforcing layer respectively, and the thickness of the halogen-free flame retardant layer is one half of the thickness of the rubber outer layer.

Preferably, the outer wall of the outer rubber layer is fixed with a wear-resistant layer, a plurality of wear-resistant layers are fixedly connected with the outer wall of the outer rubber layer in an annular array mode, and the cross section of the wear-resistant layer is preferably trapezoidal.

The beneficial effects of the utility model are as follows:

according to the utility model, the plurality of groups of cable core layers can be separated through the first lining layer, the second lining layer and the supporting frame, mutual extrusion or interference among the cable core layers is avoided, the first lining layer, the second lining layer and the supporting frame can be matched with the reinforcing layer to improve the integral mechanical strength of the optical cable, the wear-resistant performance of the optical cable can be improved through the arranged wear-resistant layer, the bending resistance and the tensile performance of the optical cable can be improved through the arrangement of the first lining layer, the second lining layer, the supporting frame and other thermoplastic composite materials matched with the reinforcing layer, the damage caused by excessive bending of the optical cable in actual use is avoided, and meanwhile, the flame retardant performance of the optical cable can be improved through the halogen-free flame retardant layer, so that the optical cable can be more convenient for workers to install and use.

Drawings

FIG. 1 is a schematic cross-sectional view of the whole structure of the present utility model;

FIG. 2 is a schematic perspective view of the rubber outer layer and the wear-resistant layer of the present utility model;

fig. 3 is a schematic perspective view of an inner liner according to the present utility model.

In the figure: 100. a rubber outer layer; 110. a wear-resistant layer; 200. a halogen-free flame retardant layer; 300. a reinforcing layer; 400. a first liner layer; 410. a second liner layer; 420. a support frame; 500. a cable core layer; 600. and sealing the filling layer.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1-3, the thermoplastic composite optical cable reinforcing core provided by the utility model comprises a cable core layer 500, wherein the cable core layer 500 is specifically made of a plurality of groups of glass fibers, the outer wall of the cable core layer 500 is provided with a fixing part, the fixing part is used for fixing the plurality of groups of cable core layers 500, the outer wall of the fixing part is fixedly provided with reinforcing layers 300 for reinforcing the bending resistance and tensile property of the cable core layer 500, the number of the cable core layers 500 is seven, the fixing part comprises a first inner liner 400 and a second inner liner 410, the second inner liner 410 is arranged in the first inner liner 400, the first inner liner 400 and the second inner liner 410 are made of the same material, the first inner liner 400 and the second inner liner 410 are made of polyvinyl chloride, the polyvinyl chloride is preferably made of the same material, the polyvinyl chloride has higher mechanical strength, the hard polyvinyl chloride does not contain or contains a small amount of plasticizer, the cable has better tensile, bending resistance, compression resistance and shock resistance, can be singly used as structural materials, a support frame 420 is fixed between the inner wall of the first inner liner 400 and the outer wall of the second inner liner 410, the support frame 420 is arranged to strengthen the supporting performance between the first inner liner 400 and the second inner liner 410, the space between the first inner liner 400 and the second inner liner 410 is separated, so that the cable core layers 500 are prevented from being integrally piled together, the cable core layers 500 are prevented from being mutually extruded, the arranged support frame 420 is preferably made of aramid fiber solidified strips, the strength of the aramid fiber is far higher than that of steel, the toughness of the aramid fiber is twice that of steel wires, the aramid fiber support frame 420 has good insulativity and high temperature resistance, the bending resistance and the tensile resistance of the first inner liner 400 and the second inner liner 410 can be improved, the number of the support frames 420 is six, six support frames 420 are arranged on the inner wall of the first inner liner 400 in an annular array mode, six cable core layers 500 are arranged between adjacent support frames 420, one cable core layer 500 is arranged on the inner wall of the second inner liner 410, six cable core layers 500 are fixedly connected with the inner wall of the adjacent support frames 420 through sealing filling layers 600, the outer wall of one cable core layer 500 is fixedly connected with the inner wall of the second inner liner 410 through sealing filling layers 600, the arranged sealing filling layers 600 are filled between the two groups of support frames 420, so that the cable core layers 500 arranged between the two groups of support frames 420 can be fixed, meanwhile, the electromagnetic interference resistance of the cable core layers 500 can be improved, the arranged cable core layers 500 are preferably made of calcium carbonate powder and phenolic plastic powder, the arranged calcium carbonate powder plays a role in filling and reinforcing, the tensile strength and bending resistance of the whole cable reinforcing core are increased, the mixed phenolic plastic powder insulating property is also enabled to be achieved on the other hand, the cable core layer 500 arranged inside the second inner liner 410 is filled between the outer wall of the second inner liner 410 and the inner wall of the second inner liner 410, the cable core layer 500 is also filled between the two groups of support frames 420, the thickness of the cable core layer 500 and the first inner liner 300 is equal to the thickness of the mechanical strength of the reinforced layer 300 is equal to the mechanical strength of the inner liner 300, the mechanical strength of the reinforced layer 300 is preferably fixed, and the mechanical strength of the reinforced layer 300 is equal to the mechanical strength of the reinforced layer is arranged, and the mechanical strength of the reinforced layer 300 is preferably is arranged;

the outer wall of the reinforcing layer 300 is fixed with the rubber outer layer 100, the rubber outer layer 100 is arranged to improve the sealing performance of the optical cable, thereby improving the waterproof performance of the optical cable, the halogen-free flame retardant layer 200 is arranged between the reinforcing layer 300 and the outer wall of the rubber outer layer 100, the outer wall and the inner wall of the halogen-free flame retardant layer 200 are fixedly connected with the outer wall of the rubber outer layer 100 and the outer wall of the reinforcing layer 300 respectively, the halogen-free flame retardant layer 200 is arranged to improve the whole combustion resistance of the optical cable, the situation that the optical cable is damaged due to combustion of the outside is avoided, the material of the halogen-free flame retardant layer 200 is preferably any one or more of fire-resistant mica flame retardant tape, silane crosslinked polyethylene and asbestos, the thickness of the halogen-free flame retardant layer 200 is one half of the thickness of the rubber outer layer 100, the outer wall of the rubber outer layer 100 is fixed with the wear-resistant layer 110, the plurality of wear-resistant layers 110 are fixedly connected with the outer wall of the rubber outer layer 100 in an annular array mode, the cross section of the wear-resistant layer 110 is preferably trapezoid, the wear-resistant layer 110 is arranged to replace the rubber outer layer 100 to be contacted with the outside, the situation that the rubber outer layer 100 is prevented from being damaged due to the combustion of the outside, the outside is avoided, any one or more of the materials is preferably fire-resistant mica flame retardant tape, the material is or high in the wear-resistant performance, the wear-resistant resin is preferably high in the wear-resistant performance, the wear-resistant resin is the outer layer 100 is high, and the wear-resistant resin is and the wear resistant resin is and the outer layer is.

The application process of the utility model is as follows: firstly, the worker firstly produces the first inner liner 400 and the second inner liner 410 with different diameter sizes by using injection molding equipment and extruder equipment, the first inner liner 400 is uniformly arrayed and fixed in the second inner liner 410 to form the produced supporting frames 420, then seven groups of cable core layers 500 are taken out, six groups of cable core layers 500 are placed between the two groups of supporting frames 420 in a ring-shaped array mode, the last group of cable core layers 500 are inserted into the second inner liner 410, then the sealing filling layer 600 which is well fused and mixed in advance is poured between the two groups of supporting frames 420 and in the second inner liner 410, so that the cable core layers 500 can be fixed, then the reinforcing layer 300 can be fixed on the outer wall of the first inner liner 400 in an injection molding or braiding mode, the fixing mode is determined according to the material selected by the reinforcing layer 300, then the halogen-free flame retardant layer 200 and the rubber outer layer 100 are bonded and fixed on the outer wall of the reinforcing layer 300 at one time by using equipment, finally the outer wall of the rubber outer layer 100 is sleeved and fixed with the halogen-free flame retardant layer 110, and the outer wall of the wear-resistant layer 110 is coated, the wear-resistant layer is prepared, the cable can be fixed in advance, the wear-resistant performance of the cable can be improved by arranging the reinforcing layer 100, and the wear-resistant performance can be improved by arranging the reinforcing layer and the wear-resistant cable with the mechanical wear-resistant layer.

The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.

Claims

1. Thermoplastic composite optical cable reinforcing core, including cable sandwich layer (500), its characterized in that: the outer wall of cable sandwich layer (500) is provided with fixed part, fixed part's outer wall is fixed with enhancement layer (300), the outer wall of enhancement layer (300) is fixed with outer (100) of rubber, the quantity that cable sandwich layer (500) set up is seven, fixed part includes first inner liner (400) and second inner liner (410), second inner liner (410) set up the inside at first inner liner (400), be fixed with support frame (420) between the outer wall of the inner wall of first inner liner (400) and second inner liner (410), the quantity that support frame (420) set up is six, six support frame (420) are arranged the inner wall at first inner liner (400) through annular array's mode.

2. The thermoplastic composite fiber optic cable strength core of claim 1, wherein: six cable sandwich layers (500) set up between adjacent support frame (420), one cable sandwich layer (500) set up the inner wall at second inner liner (410), six cable sandwich layers (500) all pass through sealed filling layer (600) with adjacent inner wall fixed connection of support frame (420), one the outer wall of cable sandwich layer (500) passes through sealed filling layer (600) and inner wall fixed connection of second inner liner (410).

3. The thermoplastic composite fiber optic cable strength core of claim 1, wherein: the inner wall of the reinforcing layer (300) is fixedly connected with the outer wall of the first inner liner layer (400), and the thickness of the reinforcing layer (300) is the same as that of the first inner liner layer (400).

4. A thermoplastic composite optical cable strength core according to claim 3, wherein: the halogen-free flame-retardant rubber is characterized in that a halogen-free flame-retardant layer (200) is arranged between the reinforcing layer (300) and the outer wall of the rubber outer layer (100), the outer wall and the inner wall of the halogen-free flame-retardant layer (200) are fixedly connected with the outer wall of the rubber outer layer (100) and the outer wall of the reinforcing layer (300) respectively, and the thickness of the halogen-free flame-retardant layer (200) is one half of the thickness of the rubber outer layer (100).

5. The thermoplastic composite fiber optic cable strength core of claim 4, wherein: the outer wall of the rubber outer layer (100) is fixedly provided with a wear-resistant layer (110), a plurality of wear-resistant layers (110) are fixedly connected with the outer wall of the rubber outer layer (100) in an annular array mode, and the cross section of the wear-resistant layer (110) is preferably trapezoidal.