Lining silicon nitride ceramic wear-resistant disc valve convenient to install

The utility model discloses a convenient-to-install wear-resistant disc valve lined with silicon nitride ceramic, which comprises a valve body, the top of the valve body is provided with a transverse plate, the top of one end, far away from the valve body, of the transverse plate is fixedly provided with a stand column, the outer side of the stand column is sleeved with a sleeve, the inner wall of the sleeve is provided with a limiting groove, and a limiting block is arranged in the limiting groove; the limiting blocks are fixed to the outer walls of the stand columns. And the lantern ring is connected to the middle of the sleeve in a sleeving mode, the lantern ring and the sleeve are rotationally connected, the lantern ring is fixed to one end of the air cylinder, and the lantern ring rotates to drive the air cylinder to rotate. According to the wear-resistant disc valve convenient to install and lined with the silicon nitride ceramic, the sleeve is in butt joint with the stand column, the limiting groove is