Automotive thermostat casing

The utility model discloses an automotive thermostat casing, water inlet connection pipe including integrative setting in proper order, location structure is covered to installation pipe and sealed glue, junction between water inlet connection pipe and the installation pipe is equipped with an annular defining flange, the installation pipe is equipped with the 2nd defining flange with the sealed junction of covering location structure of gluing, be equipped with the strengthening rib that a plurality of annular was arranged on the installation outside of tubes wall between a defining flange and the 2nd defining flange, the sealed annular lug that covers location structure and include and install the pipe intercommunication of gluing, be equipped with the ring packing groove on this annular lug global, be equipped with two cardboards on the terminal surface of annular lug, two cardboards symmetry each other set up, be equipped with two calories of strips of parallel arrangement on the inside wall on two cardbo