Replaceable sealing structure for chemical pump

The replaceable sealing structure for the chemical pump comprises a sealing sleeve, a sealing piece and a sealing gasket, a fixing bolt is arranged on the outer side of the sealing sleeve, the fixing bolt is in threaded connection with the sealing piece, a threaded column is arranged at the top of the sealing sleeve, a connecting plate is installed at the bottom of the threaded column, and the sealing gasket is arranged on the connecting plate. The bottom of the connecting plate is connected with a damping column, the bottom of the damping column is provided with a connecting plate, the bottom of the connecting plate is connected with a sealing gasket, and the interior of the sealing gasket is provided with a fixing column. The sealing gasket is connected to the bottom of the connecting plate, the situation that the sealing gasket is displaced due to impact, and consequently the sealing performance becomes poor is prevented, the connecting pieces A are arranged at the two ends of the sealing piece, the mounti