LC adapter provided with built-in light shielding plate

1. An LC adapter provided with a built-in light shielding plate, comprising a frame, wherein one end of the frame is provided with a plurality of interfaces for matching with connection members, an upper light shielding plate and a lower light shielding plate in a spliced connection with each other are disposed at a position within the frame close to an interface, and both the upper light shielding plate and the lower light shielding plate are hingedly connected to the frame through a return spring; when a connection member is inserted into the interface, the upper light shielding plate and the lower light shielding plate rotate relative to the frame and are separated from each other under the acting force of the connection member, and when the connection member is unplugged from the interface, the upper light shielding plate and the lower light shielding plate are restored to the state of the spliced connection with each other under the acting force of the return spring to completely close the interface,

wherein the upper light shielding plate comprises a body which is in a spliced connection with the lower light shielding plate, an extension part for being against the connection member and protecting the upper light shielding is provided at a side of the body close to the interface, a reinforcing rib is provided between the extension part and the body, and rounded angles are provided at positions where the body and the extension part are against the connection member.

2. The LC adapter according to claim 1 , wherein the lower light shielding plate is provided with an opening at a position where the lower light shielding plate and the upper light shielding plate are in a spliced connection with each other.

3. The LC adapter according to claim 1 , wherein the upper portion of the frame is provided with an upper mounting groove, an upper spindle is provided within the upper mounting groove, and a plurality of upper light shielding plates are provided on the upper spindle; the lower portion of the frame is provided with a lower mounting groove, a lower spindle is provided within the lower mounting groove, and a plurality of lower light shielding plates are provided on the lower spindle; and both the number of the upper light shielding plates and that of the lower light shielding plates are same as the number of the interfaces.

4. The LC adapter according to claim 1 , wherein the frame is provided along an up-down direction thereof with a plurality of mounting holes for mounting the upper light shielding plate and the lower light shielding plate, an outer frame for covering the mounting holes is provided outside the frame, and the outer frame is clamped with the frame.

5. The LC adapter according to claim 4 , wherein the outer frame is provided with a split inward concave clamping piece, and the frame is provided with a clamping slot matched with the inward concave clamping piece.

6. The LC adapter according to claim 1 , wherein another end of the frame is provided with an elastic piece sleeved outside the frame.

7. The LC adapter according to claim 6 , wherein the elastic piece is a U-shaped structure, and comprises two elastic connections matched with the upper and lower ends of the frame, and a connection part for connecting the two elastic connections, an outer surface of the frame is provided with a U-shaped groove matched with the elastic piece, the connection part is a panel, and the thickness of the panel is smaller than the depth of the U-shaped groove.

8. The LC adapter according to claim 7 , wherein each of the elastic connections is provided with an upturned clamping piece, a sunken head end and an upturned head end.

9. The LC adapter according to claim 1 , wherein each of the upper light shielding plates and the lower light shielding plates is a plastic light shielding plate.