Handheld oscillator

The utility model belongs to the technical field of medical equipment, and particularly relates to a handheld oscillator which is characterized in that a placing sleeve is arranged at the output end of an oscillator body, a plurality of groups of clamping plates are arranged in the placing sleeve at intervals in the circumferential direction, damping rods are arranged between the plurality of groups of clamping plates and the inner side wall of the placing sleeve, and springs are arranged between the damping rods and the clamping plates; a silicon rubber case corresponding to the clamping plate is arranged in the placing sleeve, a test tube body is placed in the silicon rubber case, and a pressing assembly corresponding to the silicon rubber case is arranged on the placing sleeve; the device can be suitable for test tubes of different specifications and is high in universality; the silica gel sleeve is adopted, when the oscillator body is started, the silica gel sleeve well protects the test tube body and pre