Patent ID: 8001873

Claim:
A universal joint comprising: a tool set including a driving portion secured on one end thereof and a spherical member fixed on another end thereof; a base including a receiving chamber disposed on one end thereof and a circular groove mounted on another end thereof to receive the spherical member of the tool set, between the groove and the spherical member of the tool set being defined a stooping structure, the stopping structure including two opposite sliding slots and two locking tabs relative to the sliding slots, and a locking structure disposed on the base and including two annular recesses communicating with the groove to receive two engaging members respectively, on an outer periphery of the base being fitted a pressing member in which an abutting surface formed therein; wherein on one end of the pressing member are provided an inner conical surface and the abutting surface; wherein the abutting surface of the pressing member is biased against the engaging members to retain the spherical member of the tool set; wherein the inner conical surface of the pressing member is used to release the engagement of the spherical member so as to disengage the tool set from the base.