A multi-protected housing for an underwater optical communication device

Abstract

The utility model discloses a kind of multiple protective shell of underwater optical communication machine, the protective shell includes external main shell, coaxially fixed in its inside internal equalizing shell, and the closed buffer chamber formed between the two. Its core sealing structure is composed of conical light window, the conical compression ring of sleeve joint in the conical outer edge of window and the multi-bolt flange plate fixed in the front end of external main shell. The utility model disperses external high pressure by the composite structure of inner and outer double-layer shell and reinforcing rib;Its conical self-locking sealing structure can skillfully convert external water pressure into radial compression force that enhances sealing, realizes the pressure self-enhancing effect that greater pressure is more reliable sealing. Combined with the initial pre-tightening force provided by multi-bolt flange plate, it forms the double sealing guarantee of "pre-tightening+self-enhancing", improves the sealing reliability and long-term working stability of equipment in deepwater high-pressure environment.

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