Locking mechanism capable of being tensioned and pushed

Abstract

The invention discloses a locking mechanism capable of being tensioned and pushed. The locking mechanism comprises a driving assembly, a active end and a passive end; the active end and the passive end are fixedly connected to the cabin door on two sides, and when the locking mechanism is tensioned and pushed, the cabin door can be driven to move; and the driving assembly outputs motion and force,so that the requirement of cabin door locking force can be met. A driving motor outputs motion and force to a three-stage planetary reducer, and rotation speed reduces and torque increases through larger reduction ratio, so that the requirement of cabin door locking force can be met. Motion and force are output to the active end through a transmission gear. An active end shell body and a passiveend shell body are fixedly connected to the cabin door on the two sides respectively, and when the locking mechanism is tensioned and pushed, the cabin door can be driven to move. The locking mechanism has the advantages of being high in reliability, large in locking force, tensioning and pushing functions and the like.

Description

technical field [0001] The invention relates to a locking mechanism that can be tightened and pushed open, in particular to a locking mechanism with the function of overcoming initial resistance, which is suitable for tightening and pushing open a cabin door. [0002] technical background [0003] At present, most space vehicles such as space shuttles, spaceships, and space stations have door mechanisms, which can realize the sealing of the cabin when the door is locked; when the door is opened, the functional load can be released. The cabin door needs to be locked by a locking mechanism, and most of the current locking mechanisms can realize the locking function. [0004] However, after the hatch has been closed for a long time, it is affected by factors such as cold welding of the contact surface and increased structural deformation resistance. When the hatch is unlocked and opened again, it needs to overcome a large resistance. The current locking mechanism lacks the push-...

AI Technical Summary

Problems solved by technology

[0004] However, after the hatch has been closed for a long time, it is affected by factors such as cold welding of the contact surface and increased structural deformation resistance. When the hatch is unlocked and opened again, it needs to overcome a large resistance. The current locking mechanism lacks the push-open function. Affects the reliability of hatch opening

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