Hinge and collapsible device utilizing the same

A collapsible device comprising:

• a base;
• a hinge comprising:
• a first connecting member defining a through hole;
• a second connecting member;
• a shaft fixed to the second connecting member, and a distal end of the shaft passed through the through hole of the first connecting member for being rotationally fitted about via the first connecting member;
• a receiving member fixed to the first connecting member, and defining a receiving space, a sidewall of the receiving space defining at least one groove;
• and
• at least one sliding member fixed to the shaft and received in the receiving space, the at least one sliding member being received in and rotated relative to the receiving space together with the shaft, at least one protrusion extending from a circumference of each of the at least one sliding member;
• and
• a cover pivotally mounted to the base via the first and the second connecting members of the hinge;
• wherein the first connecting member is fixed to one of the cover and the base, and the second connecting member is fixed to the other one of the cover and the base, when the at least one sliding member rotates relative to the receiving member in the receiving space, the at least one protrusion is engaged with or disengaged from the at least one groove.

A hinge comprising:

• a shaft;
• a receiving member rotatably fitting about the shaft, wherein the receiving member defines a round receiving space, a groove is defined in a sidewall of the receiving space;
• and
• a resilient annular interference member nonrotatably fitting about the shaft and rotatably received in the receiving space, a protrusion axially extending from the interference member, wherein the protrusion is able to be engaged in or disengaged from the groove in response to the shaft rotating;
• when the protrusion is disengaged from the groove, the protrusion moves along the sidewall of the receiving space to elastically axially shrink the interference member, resulting in the interference member clamping the shaft to help position the shaft.