Luminaire body, face ring and lighting device

A face ring comprising one end configured to be sleeved on a luminaire body, wherein:

• the luminaire body comprises a lamp, and at least one rotating shaft disposed on a sidewall of the luminaire body, the rotating shaft comprises an elastic mechanism, a first end of the elastic mechanism serves as a connection end which is disposed on the sidewall of the luminaire body, and at least one first rabbet is formed in the elastic mechanism at a second end of the elastic mechanism in a direction away from the connection end, and a first limiting unit is disposed at the second end of the elastic mechanism;
• and
• another end of face ring is configured to be fixed to a mounting face, and the face ring comprises:
• a face ring body and an inner ring surface, and the inner ring surface has a circular ring structure protruding from the face ring body in a direction away from the mounting face, and the inner ring surface and the face ring body form a holding part for mounting the luminaire body;
• at least one connection unit is disposed on an outer wall of the inner ring surface, and the connection unit is configured to be connected to the rotating shaft.

A lamp housing assembly, comprising:

• a face ring having a first mounting space therein, wherein two first sliding faces are formed opposite to each other on an outer surface of the face ring, and a second mounting space is provided on the first sliding face;
• and
• a housing disposed in the first mounting space, wherein two rotating shafts are connected to the housing, and each rotating shaft is rotatably connected with the corresponding second mounting space;
• an adjusting block is disposed on each of the rotating shafts;
• the adjusting block presses against the corresponding first sliding face, and a guide block is disposed on the first sliding face to guide rotation of the adjusting block.