An armored optical cable structure and a stripping method of the armored optical cable

Abstract

The present application relates to a kind of armored cable structure and the stripping method of armored cable.The armored cable structure includes sheath, spiral armoring pipe and optical fiber bundle, optical fiber bundle is wrapped in spiral armoring pipe, spiral armoring pipe is formed by steel wire spiral winding, there is gap between adjacent steel wire of spiral armoring pipe and gap is helical as a whole, sheath is wrapped in spiral armoring pipe, and spiral thread embedded in gap is formed on the inner wall of sheath.Spiral thread is integrally formed with sheath.The stripping method of armored cable is used for stripping the armored cable structure of the present application.By embedding spiral thread on sheath in the gap of spiral armoring pipe, when stripping, sheath is ringed, spiral armoring pipe steel wire is cut off after reverse rotation, and finally directly stripped, sheath and built-in spiral armoring pipe are not separated when stripping, and there is no scattering situation, and cutting is carried out on the exposed steel wire after reverse rotation, and it is not easy to cause damage to optical fiber bundle.

Description

TECHNICAL FIELD

[0001] The present application relates to optical cable structure, especially to a kind of armored optical cable structure and armored optical cable stripping method. BACKGROUND

[0002] Optical cable is manufactured to meet the performance specifications of optical, mechanical or environmental, it is the use of one or more optical fibers placed in the cladding sheath as transmission medium and can be used alone or in groups Communication cable assembly. Optical cable is a certain number of optical fibers according to a certain way to form cable core, outer package with sheath, some also coated with outer sheath, to realize optical signal transmission of a communication line. In order to improve the strength of optical cable and prevent rat bite and other functions, spiral steel wire will be added to the spiral armor tube in the optical cable, and the sheath is wrapped outside the spiral armor tube, and the inner wall of the sheath is smooth. This kind of optical cable needs to be stripped when connecting to expose the optical fiber bundle, usually there are two ways to strip, one is to cut off the sheath, pull out the sheath, then pull out one end of the armor tube (the armor tube is spiral and therefore elastic), cut off the armor tube, then push the armor tube backward, and expose the optical fiber bundle, the other way is to cut off and pull out the sheath and armor tube respectively. Two ways will make the sheath and armor tube separate, and the sheath and armor tube will scatter after stripping, which will cause disorder, and the shearing work is easy to hurt the optical fiber bundle, SUMMARY

[0003] The purpose of the present application is to overcome the defects of the prior art, and provide an armored optical cable structure and armored optical cable stripping method, so that the stripping is not easy to scatter and not easy to hurt the optical fiber.

[0004] To achieve the above purpose, the present application adopts the following technical scheme: an armored optical cable structure, comprising a sheath, a spiral armor tube and an optical fiber bundle, the optical fiber bundle is wrapped in the spiral armor tube, the spiral armor tube is formed by spiral winding of steel wire, there is a gap between adjacent steel wires of the spiral armor tube, and the gap is spiral as a whole, the sheath wraps the spiral armor tube, and the inner wall of the sheath forms a spiral groove embedded in the gap. The spiral groove is integrally formed with the sheath. The height of the spiral groove is less than the thickness of the steel wire.

[0005] The steel wire of the spiral armor tube is spirally wound clockwise. The gap and the spiral groove are both clockwise spiral.

[0006] The sheath is made of flexible plastic. Alternatively, the sheath also has two parallel reinforcing wires embedded therein, the reinforcing wires are parallel to the optical fiber bundle, and the optical fiber bundle and the spiral armor tube are located between the two reinforcing wires.

[0007] The present application also discloses a stripping method for armored optical cable, which is used for stripping the armored optical cable structure of the present application, comprising the following steps:

[0008] Cutting the sheath around one position of the optical cable to form a to-be-stripped section;

[0009] The section to be stripped rotates in the opposite direction of the spiral winding direction of the steel wire of the spiral armor tube;

[0010] Cut off the exposed spiral armored tube steel wire;

[0011] Pull the section to be stripped off from the optical cable.

[0012] When the section to be stripped is rotated in the opposite direction of the spiral winding direction of the steel wire of the spiral armor tube, the steel wire of the spiral armor tube at the cable cut is reversely unfolded and exposed. When the steel wire of the spiral armor tube is spirally wound clockwise, the section to be stripped needs to be rotated in the counterclockwise direction.

[0013] Compared with the prior art, the present invention has the following advantages: by embedding the spiral pattern on the sheath in the gap of the spiral armor tube, the sheath is cut in a circular manner during stripping, and the steel wire of the spiral armor tube is cut off after reverse rotation, and then directly stripped off. During stripping, the sheath and the built-in spiral armor tube are inseparable and will not scatter. Moreover, the shearing is performed on the steel wire exposed after reverse rotation, which is less likely to accidentally damage the optical fiber bundle. This improves the wire stripping environment, reduces misoperation, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic cross-sectional view of the armored optical cable structure of the present invention.

[0015] Figure 2 It is a schematic cross-sectional view of the sheath of the present invention.

[0016] Figure 3 This is an axial schematic diagram of the armored optical cable structure of the present invention.

[0017] Figure 4 Schematic diagram of the wire stripping process of the present invention.

[0018] It should be noted that the products shown in the above views have been appropriately reduced / enlarged to suit the size of the drawings and for clarity of the views, and there is no restriction on the size of the products shown in the views. DETAILED DESCRIPTION

[0019] In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further introduced and illustrated in conjunction with specific embodiments below.

[0020] like Figure 1 、 3As shown, the armored optical cable structure of this embodiment includes a sheath 10, a spiral armor tube 20, and an optical fiber bundle 30. The sheath 10 is made of flexible plastic. The optical fiber bundle 30 is encased in the spiral armor tube 20, which in turn is encased by the sheath 10. The spiral armor tube 20 is formed by spirally winding steel wires 21. Gaps 22 are continuous and spiral between adjacent steel wires 21. In this embodiment, the width of the gaps 22 is approximately 0.15 mm.

[0021] like Figure 1 、 2 As shown, the inner wall 12 of the sheath 10 is formed with a spiral pattern 11. During the production process, the spiral pattern 11 is integrally formed with the sheath 10. The spiral pattern 11 is embedded only in the gaps between the steel wires 21, and the height M of the spiral pattern 11 is smaller than the thickness N of the steel wires 21. This prevents the spiral pattern 11 from extending and contacting the surface of the optical fiber bundle 30, which could damage the optical fiber bundle 30 during stripping.

[0022] In this embodiment, if Figure 1 、 2 As shown, the steel wire 21 of the spiral armored tube 20 is wound in a clockwise spiral, and the gaps between the steel wire 21 and the spiral pattern 11 are both in a clockwise spiral shape.

[0023] The stripping method of the armored optical cable structure of this embodiment includes the following steps: first, cutting the sheath 10 from one position of the optical cable to form a section 90 to be stripped (see FIG. Figure 4 ); then rotate the steel wire 21 in the reverse direction of the spiral winding direction to be stripped 90; then cut the exposed steel wire 21; finally, the segment to be stripped 90 is pulled away from the optical cable to complete the stripping.

[0024] When the sheath 10 is cut, it is only necessary to cut into the outer wall of the spiral armor tube 20, and there is no need to cut the spiral armor tube 20 directly. After the sheath 10 is cut, the sheath 10 to be stripped 90 is an independent section. Then reverse rotation, the steel wire 21 of this embodiment is wound clockwise ( Figure 4 In the direction A), the segment to be peeled 90 needs to be rotated counterclockwise ( Figure 4 In the middle direction B), this is also in line with the rotation switch action habits of ordinary users, that is, clockwise to tighten and counterclockwise to loosen. Therefore, this stripping method can adapt to the usage habits of ordinary people and reduce the chance of stripping errors. When the stripping section 90 is rotated in the reverse direction, the steel wire 21 at the incision is gradually unfolded in the reverse direction and exposed, forming a state as shown in FIG. Figure 4 Finally, Figure 4When the exposed steel wire 21 is cut, the spiral armor tube 20 and the optical fiber bundle 30 are not mutually restricted in the length direction of the optical cable. At this time, the section to be stripped 90 can be pulled out of the optical cable. The sheath 10 and spiral armor tube 20 in the pulled-out section remain inseparable and will not scatter. The entire stripping method also conforms to the movement habits of ordinary people, and the stripping process can greatly reduce the chance of damage to the optical fiber bundle.

[0025] In other embodiments, the cable jacket further includes two parallel reinforcing wires, which are parallel to the optical fiber bundle, with the optical fiber bundle and the spiral armor tube located between the two reinforcing wires. The reinforcing wires can be steel or plastic. When stripping this type of cable, the reinforcing wires on both sides of the jacket must first be cut off, followed by circumferential cutting of the jacket and subsequent stripping.

[0026] In the description of the present invention, it should be noted that the terms "upper," "lower," "top," and "bottom," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] The above statements are merely examples to further illustrate the technical content of the present invention for easier understanding by readers, but do not mean that the embodiments of the present invention are limited thereto. Any technical extension or re-creation made based on the present invention is protected by the present invention.

Claims

1. A method for stripping armored optical cables, characterized in that: Used for stripping armored optical cable structures, the armored optical cable structure includes a sheath, a spiral armor tube, and an optical fiber bundle. The optical fiber bundle is wrapped in the spiral armor tube, which is formed by spirally winding steel wires. There are gaps between adjacent steel wires in the spiral armor tube, and the gaps are spiral in shape. The sheath wraps the spiral armor tube, and the inner wall of the sheath is formed with spiral patterns that fit into the gaps. The height of the spiral patterns is less than the thickness of the steel wires. The spiral patterns and the sheath are integrally formed. The wire stripping method comprises the following steps: Cut the sheath from one position of the optical cable to form a section to be stripped; The section to be stripped rotates in the reverse direction of the spiral winding direction of the steel wire of the spiral armor tube; when the section to be stripped rotates in the reverse direction of the spiral winding direction of the steel wire of the spiral armor tube, the steel wire of the spiral armor tube at the incision of the optical cable is reversely unfolded and exposed; Cut off the exposed spiral armored tube steel wire; The section to be stripped is pulled out from the optical cable, and the sheath and the spiral armor tube in the pulled-out section are not separated.

2. The method for stripping an armored optical cable according to claim 1, wherein: When the steel wire of the spiral armored tube is spirally wound in a clockwise direction, the section to be stripped needs to be rotated in a counterclockwise direction.

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