CN210803804U

CN210803804U - Remote optical cable with multiple protection functions

Info

Publication number: CN210803804U
Application number: CN201921284940.2U
Authority: CN
Inventors: 王飞; 翟长伟
Original assignee: Shenzhen Shijia Optical Fiber Cable Technology Co ltd
Current assignee: Shenzhen Shijia Optical Fiber Cable Technology Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-06-19
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a remote optical cable with multiple protection functions, which comprises an optical fiber harness unit, wherein the optical fiber harness unit comprises at least one optical fiber, and the optical fiber is sheathed with a protective sleeve with side pressure resistance and high temperature resistance; the optical fiber harness unit is wrapped with a first waterproof layer, the first waterproof layer is wrapped with a flexible tensile metal armor pipe, the metal armor pipe is wrapped with a second waterproof layer, and the second waterproof layer is wrapped with a flame-retardant fireproof wear-resistant protective sleeve. The utility model discloses think about novelty, reasonable in design, and convenient to use, the utility model discloses a set up the protecting pipe in the outside and play wear-resisting and fire-retardant effect, play tensile, resistance to compression, anti worm-eaten and anti-bite effect through setting up metal armor pipe, play waterproof effect through setting up the water blocking layer.

Description

Remote optical cable with multiple protection functions

Technical Field

The utility model relates to an optical cable technical field, in particular to optical cable that zooms out with multiple safeguard function.

Background

At present, the conventional remote optical cable is formed by placing a plurality of optical fibers in a polybutylene terephthalate (PBT) beam tube, stranding the optical fibers into a cable and then bonding a steel belt polyethylene sheath; or a plurality of indoor cable subunits are stranded by sheaths. The conventional remote optical cable is complex in erection environment, and not only can face the objective physical environments of water drenching, burning, extrusion, high temperature, stretching and abrasion, but also can face the invasion of biological communities such as worm damage, rat bite, monkey bite and the like. If the damage is suffered in the complex situations, the operation safety of the network is seriously influenced, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

In view of the current optical cable of zooming out drenches in the face of water, the objective physical environment that burns, extrusion, high temperature, tensile and wearing and tearing to and in the face of if the worm is eaten, the mouse is stung and the monkey stings the condition of the invasion and attack of other biological world, do not have fine self-protection effect, the utility model provides an optical cable of zooming out with multiple safeguard function through the jacket layer that the optic fibre set up corresponding function outward, plays good guard action under above-mentioned various circumstances.

The technical scheme of the utility model as follows: the optical fiber bundle comprises an optical fiber bundle unit, wherein the optical fiber bundle unit comprises at least one optical fiber, and a side pressure and high temperature resistant protective sleeve is sleeved outside the optical fiber; the optical fiber harness unit is wrapped with a first waterproof layer, the first waterproof layer is wrapped with a flexible tensile metal armor pipe, the metal armor pipe is wrapped with a second waterproof layer, and the second waterproof layer is wrapped with a flame-retardant fireproof wear-resistant protective sleeve.

Further, preferably, the protective sleeve is made of a nylon fiber material.

Further, preferably, the first water-blocking layer is made of glass yarn with a water-blocking effect.

Preferably, the metal clad pipe is a flexible spiral pipe formed by spirally winding a steel wire.

Further, preferably, the steel wire is a flat steel wire.

Further, preferably, the second water-blocking layer is made of aramid yarn with a water-blocking effect.

Further, as preferred, the protecting pipe includes interior protecting pipe and outer protecting pipe, interior protecting pipe parcel is in outside the second water blocking layer, outer protecting pipe parcel is in outside the inner protecting pipe.

Further, preferably, the inner protecting sleeve is made of a low-smoke halogen-free flame-retardant polyolefin material.

Further, preferably, the outer protective sleeve is made of a flame-retardant PE material.

Further, preferably, the number of the optical fibers is 2 to 8.

Has the advantages that: the utility model discloses think about novelty, reasonable in design, and convenient to use, the utility model discloses a set up the protecting pipe in the outside and play wear-resisting and fire-retardant effect, play tensile, resistance to compression, anti worm-eaten and anti-bite effect through setting up metal armor pipe, play waterproof effect through setting up the water blocking layer.

Drawings

Fig. 1 is a schematic sectional view of an embodiment of the present invention.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

referring to fig. 1, a remote optical cable with multiple protection functions has an optical fiber harness unit, the optical fiber harness unit includes at least two optical fibers 1, the optical fibers 1 are sleeved with a protective sleeve 2 resisting side pressure and high temperature; the optical fiber harness unit is wrapped with a first waterproof layer 3, the first waterproof layer 3 is wrapped with a flexible tensile metal armor pipe 4, the metal armor pipe 4 is wrapped with a second waterproof layer 5, and the second waterproof layer 5 is wrapped with a flame-retardant fireproof wear-resistant protective sleeve.

The utility model discloses well optic fibre 1 is the core component of whole optical cable as the communication material of basis. The optical fiber 1 is covered with a protective sheath 2 for lateral pressure and high temperature resistance to protect the optical fiber, especially in the environment of extrusion and high temperature. The metal armored pipe 4 is wrapped outside the optical fiber harness unit to form an external hard armored cable core structure. In order to protect the optical fiber from moisture and hydrogen damage, a first water-blocking layer 3 is provided to absorb water. Also for the water and moisture blocking effect, a second water blocking layer 5 is provided outside the metal sheathing tube 4. In order to play the roles of flame retardance, fire prevention and wear resistance, a protective sleeve is arranged outside the second water-resistant layer 5.

In the specific implementation process, as a preferable technical scheme, the protective sleeve 2 is made of a nylon fiber material. The nylon fiber material has lateral pressure resistance and high temperature resistance, and can effectively protect the optical fiber 1 inside. The outer diameter of the protective sleeve 2 is preferably 0.6mm +/-0.05 mm.

In the specific implementation process, as a preferable technical scheme, the first water-blocking layer 3 is made of glass yarns with a water-blocking effect. The first water-resisting layer 3 is made of glass yarns, and the effect is good.

In a specific implementation process, as a preferable technical scheme, the metal armor tube 4 is a flexible spiral tube formed by spirally winding a steel wire. The steel wire is spirally wound into a tubular shape to serve as the metal armor tube 4, so that the protection effect of hard texture can be achieved, the tensile property is achieved, the bending flexibility is achieved, and the metal armor tube is suitable for the use property of a remote optical cable. In a specific implementation process, as a preferable technical scheme, the steel wire is a flat steel wire. The steel wire is made flat, so that the wall thickness of the metal clad pipe 4 can be relatively reduced. In specific implementation, stainless steel wires with high toughness are flattened, and after the flattened steel wires are formed, the stainless steel wires are subjected to winding type spiral extrusion to form the metal armor tube 4, wherein the spiral gaps of the metal armor tube 4 are preferably 0.1mm-0.2mm, and the outer diameter is preferably 2.8mm-3.8 mm.

In a specific implementation process, as a preferable technical scheme, the second water-blocking layer 5 is made of aramid yarn with a water-blocking effect. The aramid yarn is adopted to prepare the second water-blocking layer 5, so that the waterproof optical cable has a water-blocking effect, is used as a wrapping layer of the optical cable, and has a certain tensile effect.

In a specific implementation process, as a preferable technical scheme, the protective sleeve comprises an inner protective sleeve 6 and an outer protective sleeve 7, the inner protective sleeve 6 is wrapped outside the second water-resistant layer 5, and the outer protective sleeve 7 is wrapped outside the inner protective sleeve 6. The protective sleeve is arranged into two layers, so that the protective sleeve has more multiple protective functions.

In the specific implementation process, as a preferable technical scheme, the inner protective sleeve 6 is made of a low-smoke halogen-free flame-retardant polyolefin material. The low-smoke halogen-free flame-retardant polyolefin material has good flame-retardant and fireproof effects.

In a specific implementation process, as a preferable technical scheme, the outer protective sleeve 7 is made of a flame-retardant PE material. The flame-retardant PE material has good flame-retardant, fireproof and wear-resistant effects.

In the specific implementation process, as a preferable technical scheme, the number of the optical fibers 1 is 2-8. 2-8 optical fibers are the conventional arrangement of the number of optical fibers in the optical cable, and meet the communication requirement.

Combine above all technical scheme, the utility model provides an optical cable and set up the structure thereof can block water effectively, prevent fires, protection against rodents, prevent monkey, tensile, anti side pressure, wear-resisting and high temperature resistant, and inside metal armor pipe 4 that adds plays further reinforcing guard action, is applicable to as the optical cable of zooming out of various complex environment, is particularly useful for as 5G optical cable.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The remote optical cable with multiple protection functions is characterized by comprising an optical fiber harness unit, wherein the optical fiber harness unit comprises at least two optical fibers (1), and a side pressure and high temperature resistant protective sleeve (2) is sleeved outside each optical fiber (1); the optical fiber harness unit is wrapped with a first waterproof layer (3), the first waterproof layer (3) is wrapped with a flexible tensile metal armor pipe (4), the metal armor pipe (4) is wrapped with a second waterproof layer (5), and the second waterproof layer (5) is wrapped with a flame-retardant fireproof wear-resistant protective sleeve.

2. A multiple-protection optical cable as claimed in claim 1, wherein: the protective sleeve (2) is made of nylon fiber materials.

3. A multi-protection optical fiber cable as claimed in claim 2, wherein: the first water-resistant layer (3) is made of glass yarn with a water-resistant effect.

4. A multi-protection optical fiber cable as claimed in claim 3, wherein: the metal armor tube (4) is a flexible spiral tube formed by spirally winding a steel wire.

5. A multi-protection optical fiber cable as claimed in claim 4, wherein: the steel wire is a flat steel wire.

6. A multi-protection optical fiber cable as claimed in claim 5, wherein: the second water-resistant layer (5) is made of aramid yarn with a water-resistant effect.

7. A multi-protection optical fiber cable as claimed in claim 6, wherein: the protective sleeve comprises an inner protective sleeve (6) and an outer protective sleeve (7), the inner protective sleeve (6) is wrapped outside the second water-resistant layer (5), and the outer protective sleeve (7) is wrapped outside the inner protective sleeve (6).

8. A multi-function optical fiber cable as claimed in claim 7, wherein: the inner protective sleeve (6) is made of low-smoke halogen-free flame-retardant polyolefin material.

9. A multiple-protection optical fiber cable according to claim 8, wherein: the outer protective sleeve (7) is made of flame-retardant PE materials.

10. A multiple-protection optical cable as claimed in claim 1, wherein: the number of the optical fibers (1) is 2-8.