CN209946479U

CN209946479U - Optical cable with good protection effect

Info

Publication number: CN209946479U
Application number: CN201920536572.XU
Authority: CN
Inventors: 赖碧浪
Original assignee: Dongguan Yilu Optical Fiber Cable Co Ltd
Current assignee: Dongguan Yilu Optical Fiber Cable Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-01-14
Anticipated expiration: 2029-04-18

Abstract

The utility model discloses an optical cable that protecting effect is good, including the PE oversheath, the outer armor steel band of inboard fixedly connected with of PE oversheath, the inboard fixedly connected with PE inner sheath of outer armor steel band, the equal parallel steel wire of fixedly connected with in the inside left and right sides of PE inner sheath, the inboard fixedly connected with of PE inner sheath in the armor steel band, the inboard fixedly connected with water blocking layer of interior armor steel band, the inboard fixedly connected with PBT pipe box of water blocking layer, colored optic fibre has been cup jointed to the inboard of PBT pipe box, it has the filling layer to fill between colored optic fibre and the PBT pipe box. This optical cable that protecting effect is good is applicable to telecommunications and interoffice communication, and two parallel steel wires both play tensile force effect, play the anti side pressure effect again, cooperate double-deck steel band to improve the mechanical properties of optical cable effectively, and suitable pipeline, built on stilts or the construction and the application of direct-burried have improved the life of optical cable, have satisfied people's user demand.

Description

Optical cable with good protection effect

Technical Field

The utility model relates to a central beam tube formula optical cable technical field specifically is an optical cable that protecting effect is good.

Background

The optical cable is a communication line which uses one or more optical fibers as transmission medium and can be used individually or in groups, and is made up by using optical fiber (thin glass fibre as hair), plastic protective sleeve and plastic external cover.

The existing optical cable still has many defects when in use, the general optical cable has weak tension resistance, poor lateral pressure resistance and poor mechanical property, is not suitable for being used in long-distance communication and office communication, is inevitably rubbed with the ground or a pipeline in the construction and application processes, is particularly easy to wear, reduces the service life of the optical cable, and cannot meet the use requirements of people, so that the optical cable with good protection effect is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optical cable that protecting effect is good to solve the problem that the current optical cable that proposes among the above-mentioned background art life is low in construction and application.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an optical cable that protecting effect is good, includes the PE oversheath, the outer armor steel band of inboard fixedly connected with of PE oversheath, the inboard fixedly connected with PE inner sheath of outer armor steel band, the equal fixedly connected with parallel steel wire of the inside left and right sides of PE inner sheath, the interior armor steel band of inboard fixedly connected with of PE inner sheath, the inboard fixedly connected with water blocking layer of interior armor steel band, the inboard fixedly connected with PBT pipe box of water blocking layer, colored optic fibre has been cup jointed to the inboard of PBT pipe box, it has the filling layer to fill between colored optic fibre and the PBT pipe box.

Preferably, the thickness of the PBT pipe sleeve is between 1.9 and 2.0 millimeters, and the diameter of the parallel steel wires is 0.8 millimeter.

Preferably, the filling layer is a fiber gel waterproof compound layer, and the PE outer sheath and the PE inner sheath are medium-density polyethylene layers.

Preferably, the diameter of the PE outer sheath is between 11.7 and 12.7 millimeters, and the thickness of the PE outer sheath is between 1.5 and 1.9 millimeters.

Preferably, the diameter of the PE inner sheath is 7.4-7.8 mm, and the thickness of the PE inner sheath is 1.4-1.6 mm.

Preferably, the number of the colored optical fibers is between one and twelve, and the outer armor steel belt and the inner armor steel belt are both double-sided chrome-plated plastic-coated steel belts.

Compared with the prior art, the beneficial effects of the utility model are that: the optical cable with good protection effect is characterized in that a single-mode or multi-mode colored optical fiber is sleeved into a PBT pipe sleeve made of a high-modulus polyester material, a fiber paste waterproof compound filling layer is filled in the PBT pipe sleeve, an inner armor steel belt and a PE inner sheath cover the outer side of the PBT pipe sleeve, two parallel steel wires are placed on two sides of the PE inner sheath, an outer armor steel belt which is plated with plastics and plated with chrome on two sides is longitudinally wrapped on the outer side of the PE inner sheath, and finally the PE outer sheath is used for cabling.

Drawings

Fig. 1 is a schematic structural view of an optical cable with a good protection effect according to the present invention;

fig. 2 is a schematic perspective view of an optical cable structure with a good protection effect.

In the figure: 1-PE outer sheath; 2-external armouring steel belt; 3-PE inner sheath; 4-parallel steel wires; 5-inner armor steel tape; 6-a water resistant layer; 7-PBT pipe sleeve; 8-colored optical fiber; 9-filling layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides an embodiment: an optical cable with good protection effect comprises a PE outer sheath 1, the diameter of the PE outer sheath 1 is 11.7-12.7 mm, the thickness of the PE outer sheath 1 is 1.5-1.9 mm, PE has good environmental aging resistance and excellent chemical stability, the inner side of the PE outer sheath 1 is fixedly connected with an outer armored steel belt 2, the PE outer sheath 1 and the PE inner sheath 3 are medium-density polyethylene layers, medium-density polyethylene is characterized by environmental stress cracking resistance and long-term strength retention, the inner side of the outer armored steel belt 2 is fixedly connected with a PE inner sheath 3, the diameter of the PE inner sheath 3 is 7.4-7.8 mm, the thickness of the PE inner sheath 3 is 1.4-1.6 mm, the left side and the right side inside the PE inner sheath 3 are fixedly connected with parallel steel wires 4, the diameter of the parallel steel wires 4 is 0.8 mm, the inner side of the PE inner sheath 3 is fixedly connected with an inner armored steel belt 5, the outer armor steel strip 2 and the inner armor steel strip 5 are both double-sided chromium-plated plastic-coated steel strips, the inner side of the inner armor steel strip 5 is fixedly connected with a water-resistant layer 6, the inner side of the water-resistant layer 6 is fixedly connected with a PBT pipe sleeve 7, the thickness of the PBT pipe sleeve 7 is between 1.9 and 2.0 millimeters, PBT has excellent mechanical properties, high mechanical strength, good fatigue resistance and size stability and small creep deformation, the properties are rarely changed under high temperature conditions, colored optical fibers 8 are sleeved on the inner side of the PBT pipe sleeve 7, the number of the colored optical fibers 8 is between one and twelve, the diameter of the colored optical fibers 8 is between 11.7 and 12.7 millimeters, a filling layer 9 is filled between the colored optical fibers 8 and the PBT pipe sleeve 7, the filling layer 9 is a fiber gel waterproof compound layer, a single-mode or multi-mode colored optical fiber 8 is sleeved in the PBT pipe sleeve 7 made of a high-modulus polyester material, and the PBT pipe sleeve 7 is filled, the outer side of the PBT pipe sleeve 7 is covered with an inner armor steel belt 6 and a PE inner sheath 3, two parallel steel wires 4 are placed on two sides of the PE inner sheath 3, the outer side of the PE inner sheath 3 is longitudinally wrapped with an outer armor steel belt 2 coated with plastics through double-sided chrome plating, and finally the PE outer sheath 1 is used for cabling, so that the optical cable with a good protection effect can be completed.

The working principle is as follows: the optical cable with good protection effect is formed by sheathing a single-mode or multi-mode colored optical fiber 8 into a PBT pipe sleeve 7 made of a high-modulus polyester material, filling a fiber paste waterproof compound filling layer 9 into the PBT pipe sleeve 7, covering the outer side of the PBT pipe sleeve 7 with an inner armor steel belt 6 and a PE inner sheath 3, placing two parallel steel wires 4 on two sides of the PE inner sheath 3, longitudinally wrapping the outer side of the PE inner sheath 3 with an outer armor steel belt 2 coated with double-sided chrome plating, and finally cabling with a PE outer sheath 1.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an optical cable that protecting effect is good, includes PE oversheath (1), its characterized in that: the utility model discloses a PE pipe sleeve, including PE oversheath (1), inboard fixedly connected with outer armor steel band (2) of outer armor steel band (2), inboard fixedly connected with PE inner sheath (3) of outer armor steel band (2), the equal fixedly connected with parallel steel wire (4) of the inside left and right sides of PE inner sheath (3), armor steel band (5) in the inboard fixedly connected with of PE inner sheath (3), the inboard fixedly connected with water blocking layer (6) of interior armor steel band (5), the inboard fixedly connected with PBT pipe box (7) of water blocking layer (6), colored optic fibre (8) have been cup jointed to the inboard of PBT pipe box (7), it has PBT filling layer (9) to fill between colored optic fibre (8) and PBT pipe box (7).

2. The optical cable with good protection effect according to claim 1, wherein: the thickness of the PBT pipe sleeve (7) is between 1.9 and 2.0 millimeters, and the diameter of the parallel steel wire (4) is 0.8 millimeter.

3. The optical cable with good protection effect according to claim 1, wherein: the filling layer (9) is a fiber gel waterproof compound layer, and the PE outer sheath (1) and the PE inner sheath (3) are medium-density polyethylene layers.

4. The optical cable with good protection effect according to claim 1, wherein: the diameter of the PE outer sheath (1) is between 11.7 and 12.7 millimeters, and the thickness of the PE outer sheath (1) is between 1.5 and 1.9 millimeters.

5. The optical cable with good protection effect according to claim 1, wherein: the diameter of the PE inner sheath (3) is 7.4-7.8 mm, and the thickness of the PE inner sheath (3) is 1.4-1.6 mm.

6. The optical cable with good protection effect according to claim 1, wherein: the number of the colored optical fibers (8) is between one and twelve, and the outer armor steel belt (2) and the inner armor steel belt (5) are both double-sided chromium-plated plastic-coated steel belts.