Circumferential locking mechanism, battery locking device comprising same, power battery pack and vehicle

Abstract

The invention provides a circumferential locking mechanism, a battery locking device comprising the same, a power battery pack and a vehicle. The circumferential locking mechanism comprises a first component and a second component; the first component comprises a first through hole and an inner gear ring arranged around the first through hole, and the inner gear ring is provided with inner obliqueteeth distributed along the inner circumference; the second component comprises a second through hole, an outer gear ring and a tightening sleeve; the outer gear ring and the tightening sleeve are arranged around the second through hole; the outer gear ring is provided with outer oblique teeth distributed along the outer circumference; the tightening sleeve is fixed to the inner side of the outergear ring in an embedded mode, and the inner oblique teeth are suitable for being connected with the outer oblique teeth. According to the invention, the tolerance degree of the first component and the second component in the joint process is improved through cooperation of the oblique teeth on the inner gear ring and the outer gear ring; after joint is completed, locking force with enough strength can be provided in the radial direction and the circumferential direction, and it is guaranteed that the first component and the second component can be firmly jointed.

Description

technical field [0001] The present application relates to the technical field of circumferential anti-loosening and locking of components; in particular, the present application relates to a circumferential locking mechanism and a battery locking device using the same. Background technique [0002] It is often encountered in the prior art that the relative rotation of two components needs to be limited. [0003] For example, in screw connection, how to ensure the constant pre-tightening force of the connection is a difficult problem in the industry. Currently commonly used anti-loosening structures include providing a multi-tooth anti-loosening structure or a pin-slot structure on an easily movable threaded part. This structure can only provide limited locking positioning. With these technologies, when the screwing torque reaches a predetermined value, if the teeth or grooves cannot engage at the corresponding angle, there is still a risk of loosening of the threaded parts ...

AI Technical Summary

Problems solved by technology

In this application, there is also the situation that the engagement position of the pin 301 and the groove 101 is inconsistent with the engagement position of the pin 500 and the groove 205; in order to avoid this situation, threaded connections are used in the prior art to replace the pin 301 and the groove 101, but still Has the disadvantage of not being able to maintain an approximately constant screwing torque

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