Optical cable splice box

Abstract

The invention discloses an optical cable splice box, and aims at providing a splice box which is good in matching and low in accuracy requirement and can ensure a sealing effect during bearing and heating. The optical cable splice box comprises an upper half box and a lower half box, wherein the upper half box and the lower half box are connected to forma box body; at least two optical fiber hole frames are arranged at the two ends of the box body respectively; each optical fiber hole frame comprises an outer section and an inner section; optical fiber inlet sleeves are arranged in the outer sections; the inner sections consist of half slots in the lower half box and half slots in the upper half box; corresponding elastic clamp sleeves are arranged in the half slots; sealing grooves are formed in the upper half box and the lower half box; sealing strips are arranged in the sealing grooves; the sealing strips and the elastic clamp sleeves are connected to form sealing rings; each sealing strip is 0.5-1mm higher than an opening of each sealing groove; and cross sections of the sealing strips are trapezoids with outward large bottom edges. The optical cable splice box has the benefits that an assembling accuracy requirement is low; the cost is saved; displacement is not easy to generateat butting parts of the sealing rings; the sealability is good; and a reinforcing structure is arranged in the box body, so that the compressive capacity and the overall strength are high.

Description

technical field [0001] The invention belongs to the technical field of optical cable lines, in particular to an optical cable joint box. Background technique [0002] Optical cable splice box, also known as optical cable splice box, belongs to the mechanical pressure sealing joint system, which is a splice protection device that provides optical, sealing and mechanical strength continuity between adjacent optical cables. It is mainly suitable for straight-through and branch connections of overhead, pipeline, direct buried and other laying methods of optical cables of various structures. The optical cable splice box is mostly composed of two half boxes, with a sealing ring set between them, and an optical cable inlet or outlet hole at the end to achieve sealing, pressure resistance and impact resistance, and the entry and exit of the optical cable. However, in the sealing structure of the existing optical cable splice closure, the matching accuracy of the sealing ring and th...

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Problems solved by technology

[0003] The present invention is to overcome the problem that the ordinary sealing structure used in the optical cable splice box in the prior art, when the pressure is large and the heat is large, the sealing ring is prone to instability, displacement, overflow and other conditions, which will affect the sealing effect. , provides a joint box with good fit, low precision requirements, and can guarantee the sealing effect even under pressure and heat

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