Outer skin fastening device for small optical cable

Abstract

The invention discloses a outer skin fastening device for a small optical cable, comprising a tail handle with at least one pair of pressure clamps and push tubes which are sleeved on the tail handle and extrude the pressure clamps; the device is characterized in that: at least one circular arc-shaped cutting benches are arranged on the tail handle; the circular arc-shaped cutting benches and the pressure clamps are arranged in the same angle in the axis direction of the tail handle; the radiuses of one sides to the other sides of the circular arc-shaped cutting benches in the circumferential direction of the tail handle are gradually increased; and circular arc-shaped cut grooves which are matched with the circular arc-shaped cutting benches on the tail handle are arranged in the push tubes. According to the outer skin fastening device for the small optical cable, a fully hand pressure technology is adopted, so that the outer skin of the optical cable can be firmly fixed without any special tool, the pull-out force is more than 10N, the fastening of the optical cable is safe, the optical fiber is not damaged, no extra insertion loss is produced, the optical cable is protected against potential damage risks, the operation is simple, and the construction intensity is small.

Description

technical field [0001] The invention relates to a fastening device for a small-sized optical cable sheath, in particular to a fastening device for an optical cable. Background technique [0002] As the coverage density of FTTH fiber-to-the-home is getting higher and higher, when the optical fiber is connected in the corridor distribution cabinet, distribution box, and outdoor cabinet, the specification of the fastened optical cable is getting smaller and smaller, and the outer sheath of the optical cable is between 0.25mm and 1.2mm. It is defined as a small-sized optical cable. There is no good method for fastening the sheath of these small-sized optical cables. At present, there are two main methods for fastening the outer sheath of the optical cable: [0003] The first is to arrange arc grooves at the end of the V-shaped groove and the end of the gland respectively. When working, the optical fiber in the V-shaped groove is compressed while the space of the arc groove is re...

AI Technical Summary

Problems solved by technology

[0004] The fastening force of these two fastening methods does not exceed 5N. In the first method, the deformation of the fiber sheath cannot reach the locking amount, so the fastening force is insufficient; in the second method, the downward stroke of the suspension block is pushed Influenced by the resistance of the pipe introduction, if the setting is too high, the force of pushing the pipe is too large, and if the setting is low, the fastening purpose cannot be achieved.

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