The invention provides a protective box for a track circuit. The protective box comprises a box body, a sealing ring and a box cover, a first annular groove is formed in an opening of the box body, apressing part is arranged on the inner side of the box cover, or the pressing part is arranged on the opening of the box body. The first annular groove is formed in the inner side of the box cover, the pressing part is provided with a first annular protrusion, the sealing ring is arranged in the first annular groove in a matched mode, the sealing ring is provided with at least two second annular protrusions in the length direction, and a second annular groove is formed between any two adjacent second annular protrusions. The box cover covers the opening of the box body, the pressing part is arranged in the first annular groove in a matched mode, and the first annular protrusion is arranged in the second annular groove in a matched mode; a mounting through hole is formed in the box cover; the sealing ring is completely contained in the first annular groove, so that dislocation of the sealing ring is avoided, after the box cover covers the box body, the pressing part is arranged in the first annular groove in a matched mode, sealing failure caused by buckling dislocation is avoided, the first annular protrusion is arranged in the second annular groove in a matched mode, and the sealing effect is better.

    本发明提出一种轨道电路用防护盒,包括盒体、密封圈和盒盖;盒体开口设有第一环形槽,盒盖内侧设有压紧部,或盒体开口设有压紧部,盒盖内侧设有第一环形槽;压紧部设有第一环形凸起,密封圈配合在第一环形槽内,密封圈沿长度方向设有至少两个第二环形凸起,任意相邻第二环形凸起之间形成第二环形槽;盒盖盖合在盒体开口上,压紧部配合在第一环形槽内,第一环形凸起配合在第二环形槽内;盒盖设有安装通孔;密封圈完全容置在第一环形槽内,从而避免密封圈错位,盒盖盖合在盒体上后,压紧部配合在第一环形槽内,从而避免扣合错位导致的密封失效,又第一环形凸起配合在第二环形槽内,密封效果更好。


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    Titel :

    Protection box for track circuit


    Weitere Titelangaben:

    一种轨道电路用防护盒


    Beteiligte:
    JIA XIANGWU (Autor:in) / LIU RUI (Autor:in) / ZHANG XIAN (Autor:in) / WANG ZHAOQING (Autor:in) / YANG YIXUAN (Autor:in) / YANG XIAOFENG (Autor:in) / XIAO CHUJUN (Autor:in) / WU XIBING (Autor:in)

    Erscheinungsdatum :

    2020-06-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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