CN210090752U

CN210090752U - Micro-bending resistant metal tube optical cable

Info

Publication number: CN210090752U
Application number: CN201920898112.1U
Authority: CN
Inventors: 王爱国
Original assignee: SHENZHEN SDGI PHOTOELECTRICITY TECHNOLOGIES Co Ltd
Current assignee: SHENZHEN SDGI PHOTOELECTRICITY TECHNOLOGIES Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-02-18
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses an anti-microbend metal tube optical cable, which comprises an optical fiber, a stainless steel tube, a silica gel layer, a stainless steel wire armor layer and an outer protective layer; the optical fiber is arranged in the stainless steel pipe, the optical fiber and the stainless steel pipe are in a loose sleeve structure, and factice is filled between the optical fiber and the stainless steel pipe; the stainless steel pipe is wrapped with the silica gel layer; the stainless steel wire armor layer is wrapped outside the silica gel layer; the outer protective layer wraps the stainless steel wire armor layer. The utility model discloses stack two excellent properties of nonrust steel pipe and silica gel for this optical cable structure has nonrust steel pipe and silica gel advantage separately, full play the performance of two kinds of materials, and then makes the utility model discloses can be used to emergency repair, sensing, security protection, aviation, naval vessel, field operations and other special requirement occasions.

Description

Micro-bending resistant metal tube optical cable

Technical Field

The utility model relates to a special trade fiber communication technical field, more specifically the anti metal pipe optical cable that bends a little that says so relates to.

Background

Optical fiber communication technology has been applied to various industries, and different application environments put various requirements on the performance of optical cables. However, the outer diameter, mass, bending radius and the like of various types of optical cables are generally larger, the outer diameter of the conventional plastic tight-buffered optical fiber is generally 0.2mm-0.25mm, and if the conventional plastic tight-buffered optical fiber is not protected, the defects of poor strength, short service life and the like exist, and the conventional plastic tight-buffered optical fiber cannot be applied to some occasions at all.

At present, although optical cables are protected by various existing techniques and materials, the outer diameter, mass, bending radius, mechanical properties, environmental resistance and the like of the optical cables are not satisfactory in some special occasions. At present, micro optical cables generally have several structures, and the materials are distinguished by the following: non-metallic materials and metallic materials. The non-metallic material (as shown in figure 1) generally adopts a tight-buffered optical fiber as an optical unit, is additionally provided with non-metallic materials such as aramid yarn or glass fiber and the like as a reinforcing element, and then is armored with metal or directly extruded outside to form an outer protective layer, has large outer diameter, poor environmental resistance and poor lateral pressure resistance, and is generally used indoors. The optical unit of the metal material (as shown in figure 2) is a stainless steel tube optical fiber structure, a stainless steel wire armor is additionally arranged, and an outer protective layer is extruded outside the optical fiber structure.

Therefore, it is an urgent problem to be solved by those skilled in the art to develop an optical cable having a novel structure to overcome the above-mentioned drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to overcome the defects of the prior art, the utility model discloses utilize stainless steel loose tube optic fibre tubular metal resonator technique and silica gel structure's advantage separately to combine, designed an anti microbend tubular metal resonator optical cable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an anti-microbend metal tube optical cable comprises an optical fiber, a stainless steel tube, a silica gel layer, a stainless steel wire armor layer and an outer protective layer; the optical fiber is arranged in the stainless steel pipe, the optical fiber and the stainless steel pipe are in a loose sleeve structure, and factice is filled between the optical fiber and the stainless steel pipe; the stainless steel pipe is wrapped with the silica gel layer; the stainless steel wire armor layer is wrapped outside the silica gel layer; the outer protective layer wraps the stainless steel wire armor layer.

The utility model discloses an add oleamen and nonrust steel pipe at optic fibre, can make the optic fibre of the inside receive the protection, make it avoid the influence of operation, installation and environment, especially let optic fibre can prevent damp and prevent the extrusion.

The utility model discloses further wrap up one deck silica gel outside nonrust steel pipe, have better heat-resisting, cold-resistant and weatherability because of silica gel, and can play certain cushioning effect, it becomes an organic whole with nonrust steel pipe, the nonrust steel pipe of protection that can be very big improves the anti bending capability of nonrust steel pipe, improves the environmental resistance performance of nonrust steel pipe simultaneously.

The utility model discloses a wrap up nonrust steel wire armor outside the silica gel layer for this optical cable has had the characteristics that mechanical properties is good, and the concrete performance is: tensile strength and compressive strength are enhanced, gnawing of animals such as mice can be prevented, and further the service life of the optical cable is prolonged.

The utility model discloses increased the one deck outer jacket outside nonrust steel wire armor again, the effect of outer jacket is protection nonrust steel wire armor, prevents that nonrust steel wire armor from suffering the damage laying the in-process to prevent that nonrust steel wire armor from suffering the corruption at the operation in-process, the outer jacket still has certain waterproof ability simultaneously.

On the basis of the technical scheme, the utility model discloses still can make following improvement:

preferably, the silica gel layer is bonded on the outer wall of the stainless steel pipe and tightly attached to the stainless steel pipe into a whole, so that the stainless steel pipe is better buffered and protected, and the bending resistance of the stainless steel pipe is improved.

Preferably, the outer protective layer is a polymer outer protective layer.

Preferably, the outer sheath is made of PU, PE, PA, PF or LSZH materials.

The outer protective layer is made of high polymer materials, so that the stainless steel tube has excellent mechanical properties, ageing resistance and the like, can prevent the optical fiber from being broken after the stainless steel tube is bent within a certain bending radius range, and plays roles in protecting the optical cable, reducing the friction coefficient and the like.

Preferably, the optical fiber has an outer diameter ranging from 0.2 to 0.25 mm.

Preferably, the stainless steel pipe has an outer diameter ranging from 0.6 to 0.9 mm.

According to the above technical scheme, compare with prior art, the utility model discloses an anti microbend metal pipe optical cable, this optical cable structure adopt silica gel to bind outside nonrust steel pipe loose tube optic fibre, and the two closely laminates integratively, have environmental resistance excellent performance, buffer protection nonrust steel pipe, improve characteristics such as nonrust steel pipe bending resistance ability. Two excellent properties stack of nonrust steel pipe and silica gel for this optical cable structure has nonrust steel pipe and silica gel advantage separately, full play the performance of two kinds of materials, and then makes the utility model discloses can be used to emergency repair, sensing, security protection, aviation, naval vessel, field operations and other special requirement occasions.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a first diagram illustrating a conventional optical cable.

Fig. 2 is a diagram illustrating a second conventional optical cable structure.

Fig. 3 is a drawing showing a structure diagram of the optical cable with the metal tube of the utility model.

Wherein, in the figure,

1. the cable comprises optical fibers, 2 stainless steel pipes, 3 silica gel layers, 4 stainless steel wire armoring layers, 5 outer protective layers and 6 non-metal reinforcing elements.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in fig. 3, the embodiment of the utility model discloses an optical cable with metal tube and with slight bending resistance, which specifically comprises an optical fiber 1, a stainless steel tube 2, a silica gel layer 3, a stainless steel wire armor layer 4 and an outer protective layer 5, wherein,

one or more optical fibers 1 are arranged in the stainless steel pipe 2, the whole outer diameter range of the optical fibers 1 is 0.2-0.25mm, the outer diameter range of the stainless steel pipe 2 is 0.6-0.9mm, the optical fibers 1 and the stainless steel pipe 2 are of a loose sleeve structure, and factice is filled between the optical fibers 1 and the stainless steel pipe 2, so that the optical fibers 1 can move in the pipe and are prevented from being influenced by extrusion and the like, and meanwhile, the factice also plays a role in water prevention.

The outer parcel of nonrust steel pipe 2 has silica gel layer 3, and this silica gel layer 3 is glued on the outer wall of nonrust steel pipe 2 and closely laminates with nonrust steel pipe 2 and becomes an organic whole, and silica gel has better heat-resisting, cold-resistant and weatherability, and can play certain cushioning effect, and it becomes an organic whole with nonrust steel pipe 2, can protect nonrust steel pipe 2 not receive the damage, and the very big anti bending capability of nonrust steel pipe 2 that improves lets nonrust steel pipe 2 have excellent resistant environmental performance simultaneously.

The silica gel layer 3 is wrapped with a stainless steel wire armor layer 4 (stainless steel wire woven layer) to enhance the tensile strength, the compressive strength, the erosion resistance, the biting resistance and the like of the optical cable.

An outer protective layer 5 wraps the stainless steel wire armor layer 4, the outer protective layer 5 is made of high polymer materials, preferably PU, PE, PA, PF or LSZH materials, the outer protective layer 5 can prevent the optical fiber 1 from being broken after the stainless steel pipe 2 is bent within a certain bending radius range, and the effects of protecting the optical cable, reducing the friction coefficient and the like are achieved.

The utility model relates to an anti metal pipe optical cable that bends a little adopts 0.2-0.25mm optic fibre 1, the outer stainless steel pipe 2 loose cover oil charge light unit that coats 0.6-0.9mm external diameter is as the basis, plus one deck silica gel directly bonds on stainless steel pipe 2, strand stainless steel wire (weave) as the armor on silica gel layer 3 again, it is whole to form a light unit, according to the in-service use occasion at last, extrude surface PE/PA LSZH PU PF or other macromolecular material as outer jacket 5 outside. The optical cable adopting the structure not only has stronger environment resistance and side pressure resistance, is not easy to be damaged due to the influence of the external environment, but also has stronger flexibility, has stronger bending resistance and micro-bending resistance, can fully meet the optical cable kink test, and has higher practical application value

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The microbend-resistant metal tube optical cable is characterized by comprising an optical fiber (1), a stainless steel tube (2), a silica gel layer (3), a stainless steel wire armor layer (4) and an outer protective layer (5); the optical fiber (1) is arranged in the stainless steel pipe (2) in an embedded mode, the optical fiber (1) and the stainless steel pipe (2) are of loose sleeve structures, and factice is filled between the optical fiber (1) and the stainless steel pipe; the stainless steel pipe (2) is wrapped with the silica gel layer (3); the stainless steel wire armor layer (4) is wrapped outside the silica gel layer (3); the outer protective layer (5) is wrapped outside the stainless steel wire armor layer (4).

2. The microbend-resistant metal tube optical cable according to claim 1, wherein: the silica gel layer (3) is bonded on the outer wall of the stainless steel pipe (2) and tightly attached with the stainless steel pipe (2) into a whole.

3. The microbend-resistant metal tube optical cable according to claim 1, wherein: the outer protective layer (5) is made of a high polymer material.

4. The microbend-resistant metal tube optical cable according to claim 3, wherein: the outer protective layer (5) is made of PU, PE, PA, PF or LSZH materials.

5. The microbend-resistant metal tube optical cable according to any one of claims 1 to 4, wherein: the outer diameter range of the optical fiber (1) is 0.2-0.25 mm.

6. The microbend-resistant metal tube optical cable according to any one of claims 1 to 4, wherein: the outer diameter range of the stainless steel pipe (2) is 0.6-0.9 mm.