Plug protection cap, optical fiber connector assembly, fiber plug, and network device

An optical fiber connector assembly, wherein the optical fiber connector assembly comprises a plug protection cap, and a connector,

• wherein the plug protection cap comprises:
• a main body, wherein an accommodating cavity is disposed in the main body, an inlet that extends through the accommodating cavity is disposed on an end face of one end of the main body;
• a connecting sleeve;
• and
• a traction stub, wherein one end of the connecting sleeve detachably sheathes one end that is of the main body and that is away from the inlet, and the other end of the connecting sleeve is connected to one end of the traction stub in a rotatable manner;
• and
• wherein the connector comprises a plug core, a plug core holder, a limiting sleeve, a spring, a rear retainer, and a sealing ring;
• wherein the limiting sleeve comprises an accommodating cavity, a first jack, a second jack opposite to the first jack, and at least one limiting elastic plate, wherein both the first jack and the second jack extend through the accommodating cavity, the at least one limiting elastic plate is disposed at an edge of the second jack and extends in a direction parallel to an axis of the limiting sleeve, and the sealing ring sheathes one end, at which the second jack is disposed, of the limiting sleeve;
• wherein one end of the limiting sleeve is connected to the plug core holder in a plug-in manner, the spring and the rear retainer sheathe the plug core, and the plug core passes through the plug core holder and the accommodating cavity and protrudes out of the second jack;
• wherein the spring and a portion of the rear retainer are located in the accommodating cavity, and the spring connects the rear retainer and the accommodating cavity;
• and
• wherein the at least one limiting elastic plate is clamped onto the rear retainer.

A connector, wherein the connector comprises:

• a plug core;
• a plug core holder;
• a limiting sleeve;
• a spring;
• a rear retainer;
• and
• a sealing ring;
• wherein the limiting sleeve comprises an accommodating cavity, a first jack, a second jack opposite to the first jack, and at least one limiting elastic plate, both the first jack and the second jack extend through the accommodating cavity, the at least one limiting elastic plate is disposed at an edge of the second jack and extends in a direction parallel to an axis of the limiting sleeve, and the sealing ring sheathes one end, at which the second jack is disposed, of the limiting sleeve;
• wherein one end of the limiting sleeve is connected to the plug core holder in a plug-in manner, the spring and the rear retainer sheathe the plug core, and the plug core passes through the plug core holder and the accommodating cavity and protrudes out of the second jack;
• wherein the spring and a portion of the rear retainer are located in the accommodating cavity, and the spring connects the rear retainer and the accommodating cavity;
• and
• wherein the at least one limiting elastic plate is clamped onto the rear retainer.