The invention belongs to the technical field of air supply for toilet wastewater collectors of motor train units, and discloses an airtight air supply pipe structure. The airtight air supply pipe structure comprises a flange and air supply pipes. The flange is provided with one or more air supply pipe holes where the air supply pipes penetrate. The flange is further provided with a plurality of bolt holes used for being connected with a metal floor of a motor train unit. The steel pipes and the flange are connected in a welded mode. The detachably connected flange and the metal floor of the motor train unit body are connected, the air supply pipes and the flange are welded into a whole, and the air supply pipes are firmly connected with the motor train unit body. In this way, the airtight air supply pipe structure is convenient to detach and compact in structure, improves the level of protection and has a good sealing effect. Besides, the airtight air supply pipe structure further has a good sound insulation effect by means of the flange.


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    Title :

    Airtight air supply pipe structure


    Contributors:
    LI FENG (author) / XING LI (author) / LI HONG (author) / LI DONGDONG (author) / ZHANG LINNAN (author) / JIA SHUFENG (author) / DUAN GUIBIN (author)

    Publication date :

    2015-09-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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