Lock

A lock comprising:

• a drive unit including a first rotatable connecting member, a second rotatable connecting member opposite the first rotatable connecting member, and a drive member connected between the first and second rotatable connecting members, the drive member including a first drive portion connected to and driven to rotate by the first rotatable connecting member, and a second drive portion connected to and driven to move by the second rotatable connecting member;
• a press member disposed in the first rotatable connecting member in a pressable manner and connected to the drive member;
• a first sleeve sleeved onto the first rotatable connecting member to fix the drive member, and including a first engaging surface for fixing the drive member, and a first positioning groove formed in the first engaging surface, the first positioning groove including a first fixing hole, a first positioning hole, and a first positioning portion surrounding the first fixing hole and the first positioning hole;
• a second sleeve sleeved onto the second rotatable connecting member to fix the drive member, and including:
• a second engaging surface for fixing the drive member, and a second positioning groove formed in the second engaging surface, the second positioning groove including a second fixing hole, a second positioning hole, and a second positioning portion surrounding the second fixing hole and the second positioning hole;
• a first spring including a first expansion portion disposed in the first positioning groove and driven to move by the first rotatable connecting member, a first end inserted in the first fixing hole and driven to move by the first drive portion, and a second end inserted in the first positioning hole and driven to move by the first drive portion;
• a second spring including a second expansion portion disposed in the second positioning groove and driven to move by the second rotatable connecting member, a first end inserted in the second fixing hole and driven to move by the second drive portion, and a second end inserted in the second positioning hole and driven to move by the second drive portion;
• a first horizontal lever sleeved onto and driven to rotate by the first rotatable connecting member, and including:
• a first assembling portion to be connected to the first rotatable connecting member, and a first gripping portion extended from the first assembling portion and to be pressed by a user, the first assembling portion including an insertion hole for insertion of the first rotatable connecting member and the press member;
• and
• a second horizontal lever sleeved onto and driven to rotate by the second rotatable connecting member, and including:
• a second assembling portion connected to the second rotatable connecting member, and a second gripping portion extended from the second assembling portion and to be pressed by the user.