The invention belongs to the technical field of rail transit equipment, and particularly relates to a through channel pull rod device, an end wall mounting seat is connected with one end of a tension spring, the other end of the tension spring is connected with one end of an upper pull rod, and the other end of the upper pull rod is connected with one end of a lower pull rod, the other end of the lower pull rod is connected with a middle frame mounting seat; under the condition that the bearing capacity of the upper pull rod and the lower pull rod is not affected, the upper pull rod and the lower pull rod can stretch out and draw back, and the problems of interference and bending caused by compression of the upper pull rod and the lower pull rod are solved. The additionally-arranged protective sleeve can reduce the risk that foreign matter enters the tension spring, and the safety of a through channel is guaranteed when a vehicle passes through a small curve; a round hole structure for connecting the end part of the lower pull rod with the middle frame mounting seat is changed into a long round hole structure, so that the compression amount can be released through the long round hole when the lower pull rod is compressed; the manufacturing process is simple, the risks of interference and bending of the upper pull rod and the lower pull rod due to extrusion are eliminated, and the driving safety is improved.

    本发明属于轨道交通设备技术领域,具体涉及一种贯通道拉杆装置,端墙安装座与拉簧的一端连接,拉簧的另一端与上拉杆的一端连接,上拉杆的另一端与下拉杆的一端连接,下拉杆的另一端与中间框安装座连接,在不影响上拉杆和下拉杆的承载能力的情况下,使上拉杆和下拉杆可以伸缩,避免上拉杆和下拉杆因压缩导致干涉和折弯的问题;增设的防护套能够减小异物进入拉簧的风险,保障车辆通过小曲线时贯通道的安全性;将下拉杆端部与中间框安装座连接的圆孔结构改为长圆孔结构,使得下拉杆被压缩时可以通过长圆孔释放压缩量;其制作工艺简单,消除了上拉杆和下拉杆因挤压而干涉、折弯的风险,提高了行车安全性。


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    Title :

    Through channel pull rod device


    Additional title:

    一种贯通道拉杆装置


    Contributors:
    LIU YAO'AN (author) / MEN HONGLING (author) / LI SONGJUN (author) / NIE CHANGHAI (author) / CAI YIWEN (author)

    Publication date :

    2021-04-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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