Patent ID: 8656803

Claim:
A mechanical joint, comprising: a first axial bracket comprising a rotary shaft and an outer flange formed at one end of the rotary shaft; a first bearing; a second bearing; a sleeve sleeved on the first axial bracket together with the first and second bearings, and sandwiched between the first and second bearings; a second axial bracket rotatably assembled to the first axial bracket via the first and second bearings, the second axial bracket defining a receiving axial hole and having an inner flange formed within the receiving axial hole, thereby dividing the receiving axial hole into two parts; and an anti-jamming mechanism resiliently assembled within the receiving axial hole of the second axial bracket and located between the first and second bearings, wherein one end of the anti-jamming mechanism resists the inner flange, and the opposite end of the anti-jamming mechanism resisting the second bearing; wherein the first bearing, the sleeve and the second bearing sleeve on the rotary shaft in turn, and the first bearing resists the outer flange; wherein the anti-jamming mechanism comprises a guide member and a plurality of resilient members resiliently assembled at one end of the guide member; the guide member is a substantially hollow cylinder and sleeves on the sleeve, and the distal end of the resilient members resist the inner flange of the second axial bracket; the guide member defines a plurality of stepped holes in one cross-section thereof, and the plurality of resilient members are respectively assembled in the stepped holes and partially exposed to an outer side of the guide member and resist the inner flange of the second axial bracket.