Heat exchanger main piece of quick meshing structure

The utility model discloses a heat exchanger main leaf with a quick occlusion structure, which relates to the technical field of heat exchangers and comprises a main leaf body, occlusion edges are fixedly connected to the periphery of the main leaf body, a groove is arranged between each occlusion edge and the main leaf body, a sealing ring is arranged in each groove, and the main leaf body is fixedly connected with the occlusion edges. A lug is fixedly connected to the outer side of the sealing ring, a plurality of reinforcing vertical ribs are arranged on the upper surface of the main piece body in the length direction, the reinforcing vertical ribs and the flat pipe holes are alternately arranged, an occlusion mechanism is arranged on the outer side of the occlusion edge, and the occlusion mechanism comprises a connecting block, a rack, a fixing block and an occlusion tooth piece. And an air chamber is arranged above the main leaf body. Through the arrangement of the meshing mechanism, fast meshing can be