Spacecraft cabin door opening and closing device

The invention relates to the technical field of spaceflight, in particular to a spacecraft cabin door opening and closing device which comprises a power assisting mechanism and a damping mechanism, wherein the power assisting mechanism and the damping mechanism are fixedly mounted on a cabin body and a cabin door of a spacecraft through pins and hinge supports, and the power assisting mechanism and the damping mechanism are arranged in parallel. Through parallel connection of the power assisting mechanism and the damping mechanism, the spacecraft cabin door can be autonomously and slowly opened, instantaneous impact of residual air pressure in the cabin on the cabin door can be counteracted in the opening process, the cabin door is prevented from being closed too fast in the closing process, operation of astronauts in the cabin leaving process is reduced, and high safety and operability are achieved. 本申请涉及航天技术领域，具体而言，涉及一种航天器舱门开合装置，包括助力机构以及阻尼机构，助力机构和阻尼机构均通过销钉和铰链支架固定安装在航天器的舱体和舱门上，助力机构和阻尼机构并联设置。本申请通过助力机构和阻尼机构的并联