Universal spanner

The utility model provides an universal spanner, includes the spanner, transmission portion, clamping means, the spanner with can drive concentric setting of spanner pivoted drive gear, clamping meanswith revolve to twist that the gear is concentric to be set up, transmission portion comprises the relative pivoted transmission of the N adjacent ability of group, every group transmission inter block is provided with the drive gear of conveying torsion, drive gear meshes with the drive gear transmission of first transmission group mutually, the drive gear during final transmission is organizedmeshes with soon wrong gear mutually, N is for being not less than 3 natural number. Its advantage lies in: torsional force through transmission inferior officer clamping means transmits to the spanner on, realizes that the spanner twists reverse the use purpose of bolt, because transmission portion comprises the relative pivoted transmission of the N adjacent ability of group, consequently can adjust the appearance of tra