The invention relates to the technical field of aerospace, in particular to a locking and releasing device. A locking and releasing device is used for locking and releasing a to-be-locked and to-be-released mechanism in a spacecraft and comprises a shell, a locking and releasing unit and a deformable body. The locking and releasing unit and the deformable body are arranged in the shell, the locking and releasing unit is connected with a to-be-locked and to-be-released mechanism through a traction rope penetrating through the shell, and the deformable body is prepared from a shape memory material; when the shape of the deformable body is the first shape, the deformable body and the shell are matched to limit the locking and releasing unit so as to lock the to-be-locked and to-be-released mechanism; and when the shape of the deformation body is the second shape, the locking and releasing unit freely slides in the shell so as to release the mechanism to be locked and released. The embodiment of the invention provides a locking and releasing device which can lock and release a mechanism with a larger body shape under the condition of avoiding the use of initiating explosive devices such as explosive bolts.

    本发明涉及航空航天技术领域,特别涉及一种锁紧释放装置。一种锁紧释放装置,用于锁紧、释放航天器中的待锁紧释放机构,锁紧释放装置包括壳体、锁紧释放单元和变形体;锁紧释放单元和变形体设置在壳体中,锁紧释放单元通过穿过壳体的牵动绳与待锁紧释放机构连接,变形体的制备材料包括形状记忆材料;在变形体的形状为第一形状时,变形体和壳体配合将锁紧释放单元限位,以锁紧待锁紧释放机构;在变形体的形状为第二形状时,锁紧释放单元在壳体内自由滑动,以释放待锁紧释放机构。本发明实施例提供了一种锁紧释放装置,能够在避免使用爆炸螺栓等火工品的情况下锁紧、释放体形较大的机构。


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    Title :

    Locking and releasing device


    Additional title:

    一种锁紧释放装置


    Contributors:
    LIU YANJU (author) / LIU ZHENGXIAN (author) / LIU LIWU (author) / LENG JINSONG (author)

    Publication date :

    2022-10-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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