Disclosed is a repeatable connection sample conveying channel suitable for extraterrestrial celestial body sampling. An inner pipe, a movable pipe and an outer pipe are sequentially connected in a sleeved manner from inside to outside; the movable pipe can slide along the axis in a cavity formed by the outer wall of the inner pipe and the inner wall of the outer pipe; one end of the inner pipe isin butt joint with a sample collecting container through a guide structure, a fixed supporting ring is fixed to one end of the inner pipe, and the other end of the inner pipe is fixedly connected witha sealing ring; a closed cavity is formed between the inner pipe, the outer pipe and the sealing ring, an air nozzle is arranged on the outer pipe, the closed cavity is inflated through the air nozzle, and the sealing ring and the outer pipe are pushed to move towards the sample collecting container in the axial direction; and tensioning force provided by a tension spring is used for pulling theouter pipe and the sealing ring back to an initial position after air pressure of the closed cavity is relieved. According to the repeatable connection sample conveying channel suitable for extraterrestrial celestial body sampling, a driving source with a high resource demand, a large size and a large weight, such as a motor and a volute spiral spring, is not adopted, an existing gas source, for transferring samples, of a detector is used as a driving source, and the technical problems about sample channel establishment and avoidance are solved at a very low engineering cost.
一种适用于地外天体采样的可重复连接样品传送通道,内管、移动管和外管由内至外依次套装;移动管能够在内管外壁和外管内壁所成空腔内沿轴线滑动;内管的一端通过导向结构和样品收集容器对接;内管的一端固定有固定支撑环;内管的另一端固定连接密封环;内管、外管和密封环之间形成密闭腔体,外管上设置有气嘴,通过气嘴向密闭腔体内充气,推动密封环、外管沿轴向朝向样品收集容器运动;拉簧提供的张紧力用于在密闭腔体卸除气压后将外管、密封环拉回初始位置。本发明不采用电机、涡卷弹簧等资源需求大、体积和重量大的驱动源,而是利用探测器已有的转移样品用的气源作为驱动源,以很小的工程代价实现了样品通道的建立与避让的技术难题。
Repeatable connection sample conveying channel suitable for extraterrestrial celestial body sampling
一种适用于地外天体采样的可重复连接样品传送通道
2020-12-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B64G Raumfahrt , COSMONAUTICS |
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