Grain catcher and car

The utility model provides a grain catcher and car, include: the barrel, being equipped with of symmetry separates heat exchanger and separates heat exchanger down on the section of thick bamboo wallof barrel to it all matches with the shape of barrel to go up the shape that separates heat exchanger and separate heat exchanger down, the inlet end of barrel is equipped with first end awl, is equipped with a pressure sensor on the first end awl, and a pressure sensor is connected with the one end of a pressure sensor pipeline, and the shape of the other end of a pressure sensor pipeline appearsfor L, and the mouth of pipe of the other end of a pressure sensor pipeline up, the end of giving vent to anger of barrel is equipped with second end awl, is equipped with on the second end awl and states the 2nd pressure sensor, and the 2nd pressure sensor is connected with the one end of the 2nd pressure sensor pipeline, and the shape of the other end of the 2nd pressure sensor pipeline appearsfor L, the mouth of pipe o