Automatic sampling device for sewage treatment and water quality detection

The utility model discloses an automatic sampling device for sewage treatment and water quality detection, and relates to the technical field of sewage sampling. The sampling device comprises a bottom plate, a storage barrel is arranged above the bottom plate, the bottom of the storage barrel is fixedly sleeved with a fixing ring, supporting rods which are symmetrically distributed are fixedly installed at the bottom end of the fixing ring and fixedly connected with the bottom plate, a sampling pump is arranged on one side of the storage barrel, and the storage barrel and the sampling pump are fixedly connected through a hose. A support is fixedly mounted at the top end of the storage barrel; a supporting block fixedly penetrates through the top end of the support; through the arrangement of the large synchronizing wheel, the screw rod, the lifting plate and the lantern ring, the cleaning disc can continuously rotate in the downward moving process, so that the inner wall of the storage barrel is cleaned, resi