Concrete mixer sealing device

The utility model relates to a concrete mixer sealing device, including the (mixing) shaft, install at the epaxial change hub of stirring, install the bearing frame on the change hub, still encircle with the fender of installing in spindle nose guard circle medial surface including the spindle nose guard circle of installing in churn wall medial surface to be provided with the polytetrafluoroethylene packing between spindle nose guard circle, fender ring sum (mixing) shaft. Ring, polytetrafluoroethylene packing and spindle nose guard circle are kept off to sealed adoption of first way, the second say sealed adopt yellowly glue, bluely glue, floating seal and skeleton oil blanket, say with the second that it constitutes the third and say and seal to form an inclosed airtight chamber between sealed in that first way is sealed. The the device installation is maintained portably, with low costs, and the dismouting is changed conveniently, has improved mixer axle head leakproofness effectively to can show the life who improves sealing mechanism.