CN-224203464-U - Flexible optical fiber line

CN224203464UCN 224203464 UCN224203464 UCN 224203464UCN-224203464-U

Abstract

The utility model discloses a flexible optical fiber wire which comprises a strip-shaped flexible shaft core and at least one wire rod, wherein a wire rod positioning part is arranged outside the shaft core, the wire rod positioning part forms at least one spiral groove, the wire rod is arranged in the spiral groove to form a spiral shape, and the wire rod comprises an optical fiber. The utility model adopts the spiral groove to contain the wire rod at least comprising the optical fiber, and can protect the optical fiber by using the spiral groove, so that the optical fiber is prevented from being in an abrupt shape outside the flexible wire body, thereby greatly improving the lateral pressure resistance and the axial friction resistance of the optical fiber, and ensuring that the optical fiber is not easy to break in the use process.

Inventors

SUN DONG
LIU HONG
LIN HONGYI
WU LONGQING
DONG ZHIPENG

Assignees

厦门锐弗通信科技有限公司

Dates

Publication Date: 20260505
Application Date: 20210622

Claims (10)

1. A flexible optical fiber is characterized by comprising a strip-shaped flexible shaft core and at least one wire rod, wherein a wire rod positioning part is arranged outside the shaft core, the wire rod positioning part forms at least one spiral groove, the wire rod is arranged in the spiral groove to form a spiral shape, and the wire rod comprises an optical fiber.
2. The flexible optical fiber according to claim 1, wherein the wire positioning portion is a positioning sleeve disposed outside the shaft core, and the spiral groove is disposed on an outer side surface of the positioning sleeve.
3. The flexible optical fiber line according to claim 2, wherein the number of the positioning sleeves is plural, the positioning sleeves are fixedly connected one by one along the length direction of the shaft core, at least one spiral groove is respectively arranged on the outer side surface of each positioning sleeve, and the spiral grooves of adjacent positioning sleeves are in head-to-tail butt joint.
4. A flexible optical fiber according to claim 2 or 3, wherein the positioning sleeve is sleeved outside the shaft core or is injection-molded outside the shaft core, and the positioning sleeve is made of plastic, rubber or silica gel.
5. The flexible optical fiber according to claim 1, wherein said wire positioning portion is constituted by an elongated member spirally wound around said core, the elongated member being spirally wound to form a spiral groove, and a space between adjacent spiral grooves is formed to form said spiral groove.
6. The flexible optical fiber line according to claim 5, wherein the long condition is a flexible tape or a flexible rope or a flexible tube.
7. The flexible optical fiber according to claim 1, further comprising a protective layer provided on the shaft core, the wire positioning portion and the wire, wherein the protective layer comprises any one or more of a sheath, a metal mesh, a fiber mesh and a spray coating.
8. The flexible optical fiber line according to claim 1, wherein the optical fiber is a bare fiber or the optical fiber comprises a bare fiber and an outer coating surrounding the bare fiber.
9. The flexible optical fiber line according to claim 1, wherein the line further comprises a conductor.
10. The flexible optical fiber according to claim 1, wherein the shaft core comprises a bearing wire core and a core sleeve arranged outside the bearing wire core, and the bearing wire core comprises one or more of nylon wires, cotton wires, bulletproof wires, fiber wires and conductors.

Description

Flexible optical fiber line Technical Field The utility model relates to the technical field of optical fibers, in particular to a flexible optical fiber wire. Background The optical fiber is a short-term optical fiber, which is a fiber made of glass or plastic and can be used as a light transmission tool. The optical fiber has the advantages of large information capacity, good confidentiality, light weight, small volume, long transmission distance and the like, and is widely applied to the industries of communication, traffic, industry, medical treatment, education, aerospace, computers and the like. The use of optical fibers is deeply influencing and revolutionizing human life. Conventional optical fiber lines generally include an optical fiber wire (i.e., a bare fiber) and an insulating coating wrapped around the optical fiber wire, and a bending radius (also called a bending radius) of the optical fiber wire, that is, a bending radius of the optical fiber wire, is generally recommended to be about 30mm, however, in practical applications, a bending radius of the optical fiber wire by a user or a constructor is often smaller than the recommended value, resulting in a phenomenon that the optical fiber is broken frequently. Thus, the conventional optical fiber wire is poor in bending resistance. In order to solve the problem that the traditional optical fiber wire is not resistant to bending, some optical fibers are subjected to braiding treatment, and although the problem that the optical fiber wire is not resistant to bending is solved, the problem also exists that the braided optical fibers are too small in braiding interval and difficult to adjust, so that the optical power loss is large. Some optical fibers adopt a spiral winding mode, so that the problem that the traditional optical fiber wire is not resistant to bending is solved, the winding pitch is adjustable, the optical power loss of the optical fibers can be ensured to be the lowest, but the following defects are also caused: the optical fiber wire has weak compression resistance and friction resistance, because the optical fiber is abrupt at the outer side surface of the central line, and the optical fiber is very brittle, even if the optical fiber is protected by an outer sheath, the optical fiber is hard to bear certain lateral pressure or axial friction force, so that the optical fiber is compressed and is easy to break. Disclosure of utility model The utility model provides a compression-resistant friction-resistant flexible optical fiber wire aiming at the technical problems existing in the prior art. The utility model solves the technical problems by adopting the technical scheme that the flexible optical fiber wire comprises a strip-shaped flexible shaft core and at least one wire rod, wherein a wire rod positioning part is arranged outside the shaft core, the wire rod positioning part forms at least one spiral groove, the wire rod is arranged in the spiral groove to form a spiral shape, and the wire rod comprises an optical fiber. Further, the wire positioning part is a positioning sleeve arranged outside the shaft core, and the outer side surface of the positioning sleeve is provided with the spiral groove. Further, the number of the positioning sleeves is multiple, the positioning sleeves are fixedly connected one by one along the length direction of the shaft core, at least one spiral groove is formed in the outer side face of each positioning sleeve, and the spiral grooves of adjacent positioning sleeves are in head-to-tail butt joint. Furthermore, the positioning sleeve is sleeved outside the shaft core or is injection molded outside the shaft core, and the positioning sleeve is made of plastic, rubber or silica gel. Further, the wire positioning portion is formed of an elongated member spirally wound around the outside of the shaft core, the elongated member is spirally wound to form spiral lines, and the interval between adjacent spiral lines forms the spiral groove. Further, the long condition is a flexible band or a flexible rope or a flexible tube. Further, the novel high-strength steel wire comprises a protective layer arranged on the shaft core, the wire positioning part and the wire, wherein the protective layer comprises any one or more of an insulating sheath, a metal net, a fiber net and a spraying layer. Further, the optical fiber is a bare fiber, or the optical fiber comprises a bare fiber and an outer coating wrapping the bare fiber. Further, the wire also includes a conductor. Further, the shaft core comprises a bearing wire core and a core sleeve arranged outside the bearing wire core, wherein the bearing wire core comprises one or more of nylon wires, cotton wires, bulletproof wires, fiber wires and conductors. Compared with the prior art, the utility model has the following beneficial effects: 1. The utility model adopts the spiral groove to accommodate the wire rod at least comprising the optical fiber, can pro