Universal ventilating conversion mechanism of locomotive

The utility model relates to a universal locomotive ventilating conversion mechanism in winter and summer, which belongs to the class of locomotive ventilating methods or ventilating devices. The utility model is composed of a main cold air duct (4) communicated with natural air outside a locomotive and a lateral air duct (5) for outputting cold air. The utility model is characterized in that the lateral air duct (5) is provided with a cover cap (3) which can be disassembled at will; the lateral air duct (5) is matched with a section of side air duct (9) which can be disassembled at will. By using the conversion mode, the utility model is simple and practical, overcomes the problems of high manufacture cost, high maintenance cost and complicated technological process caused by the reform of a ventilating system in a large range in winter, avoids high procurement cost caused by largely using low temperature resisting products which are especially designed and saves heating energy in winter. The utility model is especially suitable for main cooling ventilating systems of locomotives and cooling ventilating systems of pulling motors. The utility model has better actual use effect and has an economy and reasonable conversion mode for ventilating systems of locomotives.