An automatic opening and closing hatch of an extraterrestrial celestial body sampling return cabin

Abstract

The invention discloses an automatic opening and closing hatch of an extraterrestrial celestial body sampling return cabin. The automatic opening and closing hatch includes a metal hatch, a heat-proof structure for the hatch, a compression release device, a locking device, a transmission device, a driving device and a separation nut ;The locking device and the separation nut are fixedly installed on the inner side of the metal cabin door, and the locking device is used to lock the metal cabin door in the closed state to the door frame; the transmission device is fixedly installed on the door frame, connected with the drive device, and includes The door shaft fixedly connected to the door is used to convert the rotary motion provided by the driving device into the linear translation and rotary motion of the metal door to realize the switch action of the metal door; the compression release device is fixedly installed in the return cabin, and The separation nut cooperates to realize the pressing, fixing, unlocking and releasing of the metal hatch in the open state. The above-mentioned automatic opening and closing hatch has the advantages of small motion envelope space and little influence by environmental factors.

Description

technical field [0001] The invention relates to the technical field of spacecraft, in particular to an automatic opening and closing cabin door of an extraterrestrial celestial body sampling return cabin. Background technique [0002] After the deep space exploration spacecraft implements planetary sample sampling, it needs to transfer the collected samples into the return capsule, and the return capsule takes the samples back to Earth. Therefore, the return cabin needs to be set to open and close the cabin door, open the cabin door before the sample is transferred into the return cabin, and close the cabin door after the sample enters the return cabin, so as to protect the collected samples and ensure the integrity and continuity of the aerodynamic shape of the return cabin. [0003] The hatch mechanism of various samples returning to the spacecraft adopts a flip-type opening and closing method. Although the opening angle is large, the movement envelope space is also large....

AI Technical Summary

Problems solved by technology

[0003] The hatch mechanism of a variety of sampling return spacecraft adopts a flip-type opening and closing method. Although the opening angle is large, the motion envelope space is also large. Use in limited circumstances

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