Lid opener and automatic cooking appliance having same

A lid opener which opens and closes a lid in a cooking appliance composed of a container into which food to be cooked is inserted and the lid which covers an upper side of the container, the lid opener comprising:

• a T-shaped guide pin (13) which is coupled integrally to an upper part of the lid (10a) and has a horizontal part (-) and a vertical part (|);
• a main pivot rod (31) having a first through hole (37) formed in an upper surface of a front thereof such that the vertical part of the T-shaped guide pin (13) uses the first through hole (37) as a path so as to move vertically, the main pivot rod (31) being coupled elastically to the horizontal part (-) of the T-shaped guide pin (13);
• a moving pivot rod (21) which is coupled to the vertical part (|) of the T-shaped guide pin (13) at a front thereof and is pinned to the main pivot rod (31) by a first fixing pin (30a) at a rear thereof so that the moving pivot rod (21) rotates relative to the first fixing pin (30a);
• and
• a support rod (25) whose lower part is fixedly installed and whose upper part is pinned to a second fixing pin (30b) at a rear lower part of the main pivot rod (31);
• wherein for a period of time t1 from time at which the lid (10a) starts to be opened from the container, the T-shaped guide pin (13) is moved vertically upward by rotating the moving pivot rod (21) relative to the first fixing pin such that the lid (10a) is moved vertically upward from the container (10b) and opened, and after the period of time t1, the main pivot rod (31) is rotated relative to the second fixing pin (30b) such that the lid (10a) is opened from the container (10b) while rotating.