Middle electrode powder coating device of gas discharge tube

The utility model discloses an intermediate electrode powder coating device of a gas discharge tube, which comprises a frame, a brush component is vertically and slidably mounted in the middle of the frame, a brush corresponding to a central hole of an intermediate electrode is arranged on the brush component, a storage barrel for storing electronic powder slurry is arranged below the brush component, and the brush component is connected with the storage barrel. The brush assembly is driven by a lifting power device to slide between an upper dead center and a lower dead center, when the brush is located at the lower dead center, the brush can dip electronic powder slurry in the storage barrel, when the brush is located at the upper dead center, the brush dipped with the electronic powder slurry penetrates through the center of the middle electrode to reach the upper surface of the middle electrode, and the brush is driven by the lifting power device to slide between the upper dead center and the lower dead ce