CN201449808U

CN201449808U - Foaming filling rope for optical cables

Info

Publication number: CN201449808U
Application number: CN2009200430150U
Authority: CN
Inventors: 马建林; 吴来强; 周春东; 徐帅
Original assignee: Jiangsu Hengtong Optic Electric Co Ltd
Current assignee: Hengtong Optic Electric Co Ltd
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2010-05-05
Anticipated expiration: 2019-06-30

Abstract

Disclosed is a foaming filling rope for optical cables. A rope body of the filling rope is polyethylene foam or formed by the polyethylene foam and a protecting layer wrapped outside the polyethylene foam. As the filling rope is comparatively soft and incapable of deforming other elements when jointly used with other elements to strand cable cores, the filling rope enables the cable cores to keep round, has no effect on roundness of the optical cables, increases production speed, reduces using materials and lowers material costs. Besides, tensile strength and side-pressure resistant strength of the filling rope are enhanced as the rope body of the filling rope employs the structure that the protecting layer is wrapped outside the polyethylene foam.

Description

The optical cable foaming packing gasket

Technical field

The utility model relates to a kind of filling member, the especially foaming packing gasket in the optical cable.

Background technology

The optical cable gasket for packing is that cable core is filled up room in the cable core and made it keep a kind of element of rounding in stranded process.Existing optical cable is generally the solid cord that the high density Insulation Material is extruded with gasket for packing, because the hardness height, easily makes other deformed element cause the cable core distortion when making cable core twisting altogether with other element, influences the roundness of optical cable; Speed of production was unhappy when the high density Insulation Material was used to make the optical cable gasket for packing, and efficient is not high; The solid cord materials are many, and material cost improves.

Summary of the invention

In order to overcome the deficiency that existing optical cable gasket for packing exists, the utility model provides a kind of optical cable foaming packing gasket, can not make other deformed element when making cable core twisting altogether with other element, make cable core keep rounding, do not influence the roundness of optical cable, also can improve speed of production, reduce material cost.

A kind of optical cable foaming packing gasket that the utility model provides, the rope body is a foam polyethylene.

The another kind of optical cable foaming packing gasket that the utility model provides, the rope body is made of the sheath of foam polyethylene and outsourcing.

The beneficial effects of the utility model are: because the rope body of gasket for packing is foam polyethylene or is made of the sheath of foam polyethylene and outsourcing, softer, can not make other deformed element when making cable core twisting altogether with other elements, make cable core keep rounding, do not influence the roundness of optical cable, and can improve speed of production, and reduce materials, reduce material cost.And the rope body of gasket for packing adopts the structure that coats sheath outside foam polyethylene can increase tension, the lateral pressure resistant intensity of gasket for packing.

Description of drawings

Fig. 1, Fig. 2 are respectively the cross sectional representation of two kinds of structures of the utility model.

In Fig. 1, Fig. 2,1, foam polyethylene, 2, sheath.

Embodiment

With reference to Fig. 1, high density polyethylene (HDPE) base resin with 98～99% is a base-material, and the nucleator that adds 1-2% mixes back fusion refining and is one, extrudes at a high speed under 165-185 ℃ of temperature and forms foam polyethylene 1, foam degrees is 10-80%, promptly makes the utility model of a kind of structure.

With reference to Fig. 2, high density polyethylene (HDPE) base resin with 98～99% is a base-material, the nucleator that adds 1-2% mixes back fusion refining and is one, under 165-185 ℃ of temperature, extrude at a high speed and form foam polyethylene 1, foam degrees is 10-80%, outside foam polyethylene 1, adopt again to gather benzene fourth dioctyl phthalate butanediol ester or polyethylene are coated sheath 2, promptly make the utility model of another kind of structure.

Claims

1. optical cable foaming packing gasket, the body that it is characterized in that restricting is a foam polyethylene.

2. optical cable foaming packing gasket, the body that it is characterized in that restricting is made of the sheath of foam polyethylene and outsourcing.