CN205176345U - Outdoor optical cable of pancake - Google Patents

Abstract

The utility model relates to the technical field of optical cables, in particular to a flat outdoor optical cable. The outdoor optical cable includes an outer sheath, a strengthening member, a water-blocking yarn, a loose tube, fiber paste and optical fibers arranged in the loose tube, a strengthening member and an optical fiber. The water-blocking yarn is arranged outside the loose tube, and the outer sheath wraps the strength member, water-blocking yarn and loose tube together to form a flat outdoor optical cable; there are two strength members, which are arranged parallel and symmetrically on both sides of the loose tube . The utility model optimizes the structural design and layout to obtain a flat outdoor optical cable, and the optical cable has good mechanical performance, environmental performance and transmission performance, small size, light weight of the optical cable, more convenient construction and deployment, and meets the requirements of outdoor use. The structure is simple and easy to manufacture.

Description

A flat outdoor optical cable

technical field

The utility model relates to the technical field of optical cables, in particular to an outdoor optical cable.

Background technique

With the development of the optical communication industry, the demand for optical cables is increasing, and the structural types are becoming more and more diverse. At present, most of the outdoor optical cables for communication are circular structures, and there is also a self-supporting figure-eight structure. , but recently there are customers who have proposed outdoor optical cables of other shapes. For this reason, the applicant proposes a flat optical cable, which is the application of this case.

Contents of the invention

The purpose of this utility model is to provide a flat outdoor optical cable, which has good mechanical performance, environmental performance and transmission performance, and its external dimension is small, and the optical cable is light in weight, which is more convenient for construction and deployment, and meets the requirements of outdoor use.

In order to achieve the above object, the utility model adopts the following technical solutions:

A flat outdoor optical cable, the outdoor optical cable includes an outer sheath, a strengthening member, a water-blocking yarn, a loose tube and fiber paste and optical fibers arranged in the loose tube, the strengthening member and the water-blocking yarn are arranged on the outside of the loose tube, and the outer The sheath wraps the strength member, water-blocking yarn and loose tube together to form a flat outdoor optical cable.

The above solution is further as follows: there are two reinforcement members, which are arranged parallel and symmetrically on both sides of the loose tube.

The above solution is further as follows: the water blocking yarn is embedded in the joint between the loose tube and the reinforcing member, and there are four water blocking yarns arranged symmetrically and vertically.

The above solution further includes: one or two water-blocking yarns are wrapped around the loose tube.

The above solution is further as follows: the reinforcement adopts non-metal reinforcement or metal reinforcement.

The utility model optimizes the structure design and arrangement, obtains a flat outdoor optical cable, and the optical cable has good mechanical performance, environmental performance and transmission performance, small size, light weight of the optical cable, more convenient construction and deployment, and meets the requirements of outdoor use. The structure is simple and easy to manufacture.

Description of drawings:

Accompanying drawing 1 is the structure diagram of preferred embodiment of the utility model.

detailed description:

The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.

Referring to Fig. 1, it is a schematic diagram of a preferred embodiment of the utility model. The utility model relates to a flat outdoor optical cable, which includes an outer sheath 1, a reinforcing member 2, a water-blocking yarn 3, and a loose tube 4 And the fiber paste 5 and optical fiber 6 set in the loose tube 4, the number of optical fibers is 1~24 cores, which can be set according to different customer needs. The loose tube 4 is made of PBT (polybutylene terephthalate ) plastics are formed by extrusion. The reinforcement 2 and the water-blocking yarn 3 are arranged outside the loose tube 4, and the outer sheath 1 wraps the reinforcement 2, the water-blocking yarn 3 and the loose tube 4 together to form a flat outdoor optical cable. The optical cable is simple in structure, easy to manufacture, has good mechanical properties, environmental performance and transmission performance, small in size, light in weight, more convenient for construction and deployment, and meets the requirements of outdoor use.

As shown in Figure 1, this embodiment is further: there are two reinforcements 2, which are arranged on both sides of the loose tube 4 in parallel and symmetrically to obtain a good structure, and the two reinforcements 2 are close to both sides of the loose tube 4, with The clamping function ensures the true circular transmission of the optical fiber 6 in the loose tube 4 . Reinforcement 2 can be non-metallic reinforcement, such as FRP, KFRP, GFRP, etc., or metal reinforcement, such as phosphating steel wire, galvanized steel wire, stainless steel wire. The water-blocking yarn 3 is embedded in the joint between the loose tube 4 and the reinforcing member 2. Preferably, four water-blocking yarns 3 are arranged symmetrically and vertically, so as to block water on the optical cable and prevent water from penetrating into the loose tube 4 longitudinally from the end. Inside, to ensure the normal operation of the optical cable and prolong the service life.

Of course, for the above structural design, one or two water-blocking yarns 3 can also be provided and wrapped around the loose tube 4, which also has a water-blocking effect.

The utility model has been described in detail above in conjunction with the embodiment, only to illustrate the technical conception and characteristics of the utility model, and its purpose is to let people familiar with this technology understand the content of the utility model and implement it. Equivalent changes or modifications made by the spirit of the new invention should all be covered within the protection scope of the present utility model.

Claims (4)

1. A flat outdoor optical cable, characterized in that: the outdoor optical cable includes an outer sheath (1), a strengthening member (2), a water-blocking yarn (3), a loose tube (4) and a loose tube (4) The fiber paste (5) and optical fiber (6) arranged inside, the reinforcement (2) and the water-blocking yarn (3) are arranged on the outside of the loose tube (4), there are two reinforcements (2), and the two reinforcements (2 ) are parallel and symmetrically clamped on both sides of the loose tube (4), the water-blocking yarn (3) is embedded in the joint between the loose tube (4) and the reinforcement (2), and the outer sheath (1) will The reinforcement (2), the water-blocking yarn (3) and the loose tube (4) are packaged together to form a flat outdoor optical cable. 2. A flat outdoor optical cable according to claim 1, characterized in that there are four water-blocking yarns (3), which are placed symmetrically and straightly between the loose tube (4) and the reinforcement (2). connection. 3. A flat outdoor optical cable according to claim 1, characterized in that: one or two of the water-blocking yarns (3) are wrapped around the loose tube (4). 4. A flat outdoor optical cable according to claim 1, characterized in that: the strengthening member (2) is a non-metallic strengthening member or a metal strengthening member.