sc type fiber optic connector

Abstract

The invention discloses an SC-type fiber connector. The SC-type fiber connector comprises a packaged housing, a sleeve headstock, a first insertion core, a second insertion core, a metal tail handle, a balance spring, a fulcrum bearing, a beam ring nut and a plastic sleeve. The first insertion core, the second insertion core and the metal tail handle are integrally fixed to form an insertion core assembly, and the metal tail handle is sleeved by the sleeve headstock. The SC-type fiber connector further comprises a tail fiber fixation seat. The front end of the tail fiber fixation seat is in threaded connection with the inner wall of the fulcrum bearing, the tail fiber fixation seat is axially provided with a through hole adaptive to a tail fiber, the outer wall of the first insertion hole is circumferentially provided with an annular groove, an opening locking ring is embedded in the annular groove, the inner wall of the front end of the sleeve headstock is provided with an annular projection cooperating with the opening locking ring, and a taper spring is connected between the annular projection and the opening locking ring. The advantages are as follows: the arrangement is simple and reasonable, the tail fiber applies no pulling forces on the insertion core assembly, loosening is not easily generated between the first insertion core and the metal tail handle, and the working state is stable.

Description

technical field [0001] The invention relates to the technical field of optical fiber coupling devices, in particular to an SC type optical fiber connector. Background technique [0002] With the continuous development of optical communication technology, optical fiber into copper and fiber to the home are widely used, and fiber optic connectors are also widely used in the connection of optical fibers. Optical fiber connectors can be divided into: FC, SC, ST, LC, D4, DIN, MU, MT, etc. according to the structure of the connector. The structure of the SC-type optical fiber connectors currently on the market usually includes a package shell, a sleeve seat, a first ferrule, a second ferrule, a metal tail handle, a balance spring, a support seat, a ring nut, and a rubber sleeve. , the socket is sleeved in the packaging shell and snap-fitted with the packaging shell, the ends of the first ferrule and the second ferrule are inserted into the metal tail handle, and are glued The ad...

AI Technical Summary

Problems solved by technology

[0003] However, the disadvantages of the above-mentioned SC-type optical fiber connectors are: first, when installing the optical fiber, in order to prevent the optical fiber from moving in the ferrule, the optical fiber and the corresponding ferrule need to be fixedly connected together by an adhesive. The first ferrule, the second ferrule and the metal tail handle of the connector are fixed together by adhesive during installation, and the optical cable and the pigtail are connected together, and the optical cable will exert a pulling force on the pigtail under the external force state, In order to avoid the axial movement of the ferrule assembly caused by the pulling force of the pigtail on the ferrule assembly, a section of redundant fiber optics is usually installed in the connector during assembly. However, in the actual assembly process, due to the operation error of technicians, the length of the redundant section of optical fiber of the pigtail is sometimes set to be short, which cannot offset the pulling force from the optical cable, so that the pigtail will still pass through the metal tail handle Compressing the balance spring causes the first ferrule to move synchronously with the metal tail handle, which in turn causes the end face of the first ferrule to separate from the ferrule end face of the other connector in the adapter, affecting the normal transmission of signals and even causing interruption of optical fiber transmission Second, because the first ferrule and the metal tail handle are connected together by adhesive, when the connector is frequently inserted and pulled out, it is easy to cause looseness between the first ferrule and the metal tail handle in the axial direction , affect the normal use of the connector

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