Adjusting type fermentation tank cap screwing head sealing device

The utility model relates to the technical field of sealing covers. The utility model discloses a sealing device for a screw cap head of an adjustable fermentation tank. The bottom of the fermentationtank body is fixedly connected with a support frame; a discharge hole is also formed in the bottom of the fermentation tank body; an observation window is formed in the fermentation tank body; a pressure gauge is mounted on the left side of the top of the fermentation tank; a feeding opening is formed in the right side of the top of the fermentation tank body; a sealing assembly is connected to the middle of the top of the fermentation tank body; a first threaded hole and a second threaded hole are formed in the left side and the right side of the top end of the feeding port correspondingly.The top end of the sealing assembly is connected with a stirring motor; an adjusting assembly is arranged on the feeding opening; the sealing assembly seals a gap between the motor rotating shaft andthe fermentation tank body,