Multi-layered structure watch for facilitating release of internal pressure

Abstract

The application provides a multi-layer structure watch convenient for releasing internal pressure, which is sequentially provided with a sealed cavity, a first heavy sealing structure, a water vapor prevention cavity and a second heavy sealing structure from inside to outside; the multi-layer structure watch is provided with a pressure relief protection structure, which comprises a pressure relief channel, a pressure relief piece and a pressure relief elastic piece, the pressure relief piece is in sliding cooperation with the pressure relief channel, the pressure relief piece comprises a pressure relief column and a pressure relief crown, the pressure relief column has opposite pressure relief inner and outer ends, and the pressure relief inner end is connected with the pressure relief elastic piece. The water vapor prevention cavity avoids water vapor from entering the sealed cavity to cause damage to the internal structure; in the case that the internal pressure is too large, the pressure relief piece can overcome the force of the pressure relief elastic piece and move towards a pressure relief position to release the pressure; when the pressure is released to a certain degree, the pressure relief piece is in a sealed state with the pressure relief channel under the action of the pressure relief elastic piece to limit further pressure relief; the pressure relief crown is threadedly connected with the entrance of the pressure relief channel, and can limit the movement of the pressure relief column in the pressure relief channel.

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