Lock member, rotary head, rotary assembly, shaft coupler, container, and food processor

A lock member comprising:

• a housing including an open groove at an inner wall of the housing, a bottom of the open groove being provided with a movement surface, an end of the movement surface proximal to an opening of the open groove being a locking end, and an end of the movement surface distal to the opening of the open groove being an unlocking end;
• a movement body provided in the open groove and moveable along the movement surface;
• and
• an elastic member provided in the open groove and configured to maintain the movement body at the locking end or the unlocking end of the movement surface.

A rotary head comprising:

• an installation sleeve, having an installation space at a lower end of the installation sleeve;
• a lock member including:
• a housing, the lock member being fixed in the installation space through the housing, the housing including an open groove at an inner wall of the housing, a bottom of the open groove being provided with a movement surface, an end of the movement surface proximal to an opening of the open groove being a locking end, and an end of the movement surface distal to the opening of the open groove being an unlocking end;
• a movement body provided in the open groove and moveable along the movement surface;
• and
• an elastic member provided in the open groove and configured to maintain the movement body at the locking end or the unlocking end of the movement surface;
• and
• a rotary actuator fixed outside the installation sleeve.

A rotary assembly comprising:

• a driver assembly;
• and
• a rotary head sleeved at the driver assembly and including:
• a housing including an open groove at an inner wall of the housing, a bottom of the open groove being provided with a movement surface, an end of the movement surface proximal to an opening of the open groove being a locking end, and an end of the movement surface distal to the opening of the open groove being an unlocking end;
• a movement body provided in the open groove and moveable along the movement surface, the movement body contacting the driver assembly;
• and
• an elastic member provided in the open groove and configured to maintain the movement body at the locking end or the unlocking end of the movement surface.