Small compressor high-pressure and low-pressure automatic balancing device

The utility model discloses a small compressor high-pressure and low-pressure automatic balancing device which comprises a balancing piston and a locating pin, the balancing piston and the locating pin are arranged on a piston cylinder, a spring is arranged between the locating pin and the balancing piston, an unloading channel is further arranged on the piston cylinder, the unloading channel is communicated with a high-pressure channel on a compressor, and the unloading channel also can be sealed by the balancing piston. Through the adoption of the structure, the automatic balancing device is installed in the small compressor, high and low pressure difference in the compressor can be removed, a compressor motor is made to be started without loading, starting torque and starting currents of the motor are reduced, and energy is saved.