CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority of Taiwanese Utility Model Patent Application No. 109200673, filed on Jan. 16, 2020.

FIELD

The disclosure relates to a connecting device, more particularly to an optic fiber connecting device and an optic fiber adaptor thereof.

BACKGROUND

Referring toFIGS.1and2, a conventional optic fiber adapter1for interconnecting a Multi-Fiber Push On (MPO) type ferrule assembly and a Mechanical Transfer (MT) type optic fiber adaptor has two ends for connecting with the MPO type ferrule assembly2and the MT type optic fiber connector (not shown), respectively.

The adaptor1includes a casing11, and two hooks12disposed on the casing11. The casing11defines a connecting slot111for the optic fiber connector to extend thereinto. The hooks12and the casing11cooperatively define an insertion slot121communicated spatially with the connecting slot111. When the ferrule assembly2is inserted into the insertion slot121, it first abuts against and pushes the hooks12to deform outwardly. Then, when the ferrule assembly2is fully inserted, each of the hooks12returns resiliently to its original position to thereby position the ferrule assembly2relative to the adaptor1.

However, once the ferrule assembly2has been confined between the hooks12, it cannot be moved in the reverse direction to separate from the adaptor1. As the sizes of the hooks12are relatively small, tools must be used to flex the hooks12outward so as to allow the ferrule assembly2to be detached from the adaptor1.

SUMMARY

Therefore, the object of the disclosure is to provide an optic fiber connecting device and an optic fiber adaptor thereof that can alleviate the drawback of the prior art.

According to one aspect of the disclosure, an optic fiber connecting device includes an optic fiber adaptor, an optic fiber connector, and a ferrule assembly.

The optic fiber adaptor includes an adaptor casing surrounding and defining a connecting slot that extends along a first direction, two flexible engaging members disposed on the adaptor casing and spaced apart from each other along a second direction transverse to the first direction, and two positioning walls disposed on the adaptor casing, spaced apart from each other along a third direction transverse to the first and second directions, and cooperating with the engaging members to define an insertion slot that is in spatial communication with the connecting slot.

The optic fiber connector is disposed behind the optic fiber adaptor along the first direction and is inserted into the connecting slot of the optic fiber adaptor.

The ferrule assembly is disposed in front of the optic fiber adaptor and includes a casing body inserted into the insertion slot of the optic fiber adaptor, two fiber-receiving tubes extending fixedly through the casing body, and a securing member disposed on the casing body and fixed to the fiber-receiving tubes.

Each of the engaging members includes an extending wall portion and a latch portion. The latch portions of the engaging members extend respectively from the extending wall portions of the engaging members toward each other. Each of the latch portions has a first inclined surface and a second inclined surface disposed behind the first inclined surface. A distance between the first inclined surfaces of the latch portions of the engaging members decreases rearwardly, so as to facilitate pushing of the casing body into the insertion slot. A distance between the second inclined surfaces of the latch portions of the engaging members decreases forwardly, so as to facilitate pulling of the casing body out of the insertion slot.

The securing member of the ferrule assembly abuts against the second inclined surfaces of the latch portions of the engaging members, such that the casing body of the ferrule assembly is confined and positioned within the insertion slot of the optic fiber adaptor.

According to another aspect of the disclosure, an optic fiber adaptor includes an adaptor casing surrounding and defining a connecting slot extending along a first direction, two flexible engaging members disposed on the adaptor casing and spaced-apart from each other along a second direction transverse to the first direction, and two positioning walls disposed on the adaptor casing, spaced apart from each other along a third direction transverse to the first and second directions, and cooperating with the engaging members to define an insertion slot.

Each of the engaging members includes an extending wall portion and a latch portion. The latch portions of the engaging members extend respectively from the extending wall portions of the engaging members toward each other. Each of the latch portions has a first inclined surface and a second inclined surface disposed behind the first inclined surface. A distance between the first inclined surfaces of the latch portions of the engaging members decreases rearwardly. A distance between the second inclined surfaces of the latch portions of the engaging members decreases forwardly.

