The invention relates to the technical field of multi-layer tubular beam plugging, in particular to an expansion piece structure for achieving multi-layer tubular beam cavity sealing and a sealing method. The expansion sheet structure comprises a first expansion sheet, wherein the first expansion sheet is arranged in a first tubular beam and is heated to expand to block an inner cavity of the first tubular beam; the second expansion piece is used for being arranged outside the first tubular beam in a sleeving mode and expanding through heating to block an inner cavity of the second tubular beam; and the first tubular beam is sleeved in the second tubular beam. According to the expansion piece structure, sealing of all cavities of the nested multiple layers of tubular beams can be achieved, the first expansion piece and the second expansion piece can seal an inner cavity of the first tubular beam and an inner cavity of the second tubular beam correspondingly, the overall structure is simple, operation and use are convenient, and the sealing effect is good; according to the sealing method, the characteristics of the expansion piece structure are fully utilized, the conventional technology for sealing the multi-layer tubular beam is improved, and the sealing method has great popularization value.

    本发明涉及多层管梁封堵技术领域,具体地指一种实现多层管梁空腔密封的膨胀片结构及密封方法。该膨胀片结构包括第一膨胀片,所述第一膨胀片用于设在第一管梁内经加热膨胀封堵第一管梁内腔;第二膨胀片,所述第二膨胀片用于套设在第一管梁外经加热膨胀封堵第二管梁内腔;所述第一管梁套设在第二管梁内。本发明的膨胀片结构,可实现嵌套的多层管梁的各腔室密封,第一膨胀片和第二膨胀片可分别密封第一管梁内腔和第二管梁内腔,整体结构简单,操作使用方便,密封效果好;所述密封方法充分利用了所述膨胀片结构的特性,改良了常规形密封多层管梁的工艺,极具推广价值。


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    Title :

    Expansion piece structure for sealing multilayer tubular beam cavity and sealing method


    Additional title:

    一种实现多层管梁空腔密封的膨胀片结构及密封方法


    Contributors:
    JIANG LING (author) / YUAN LIANG (author) / ZHANG XINGHONG (author) / KANG JIE (author)

    Publication date :

    2024-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16J Kolben , PISTONS / B62D MOTOR VEHICLES , Motorfahrzeuge



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