Marine anti-explosion watertight cabin door based on lightweight design

Abstract

The marine anti-explosion watertight cabin door based on the lightweight design comprises a door frame, the outer edge of the door frame and a cabin wall are fixedly installed in the circumferential direction, a door leaf is rotationally installed on the side face of the door frame through a hinge, and a plurality of locking blocks are rotationally installed on the inner edge of the side face of the door frame at intervals in the circumferential direction; open grooves which are in one-to-one correspondence with the locking blocks and penetrate in the thickness direction are formed in the edge of the door leaf in the circumferential direction. When the door leaf is attached to the door frame, the end of the locking block penetrates through the open groove in the direction of the door leaf. The linkage mechanism drives the multiple locking blocks to rotate synchronously, the linkage mechanism is driven by the handle to promote the locking blocks to rotate, so that the ends of the locking blocks are switched between being parallel or perpendicular relative to the opening grooves, unlocking or locking when the door leaf is attached to the door frame is achieved, and the linkage mechanism is simple, convenient and reliable. And reliable use of the cabin door under the anti-explosion requirement is greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of marine explosion-proof doors, in particular to a marine explosion-proof watertight hatch based on lightweight design. Background technique [0002] The equipment of electrical equipment on ships and offshore platforms is increasing day by day, and the degree of control automation is getting higher and higher. At the same time, living equipment is becoming more and more abundant, and flammable items such as wooden sofas are increasing; Due to the characteristics of denseness and small swirling space, the combustion will be very violent, and explosion events are very likely to occur. On the one hand, the strong shock wave and quasi-static pressure generated by the explosion can easily tear the hull structure to form a break; on the other hand, the high temperature and high pressure detonation products can easily expand the spread of the fire. As an important passage between the cabins, the hatch door plays...

AI Technical Summary

Problems solved by technology

The hydraulic sliding watertight door includes hydraulic components, and a slight deformation of the sliding door panel can lead to the loss of its opening and closing ability, and its own anti-blast performance is poor; the hinged watertight door includes mechanical parts such as buckles, connecting rods, etc. , under the action of impact load, the buckle is prone to shear failure along its shear plane, resulting in the entire hatch door falling out.

In addition, the existing two types of watertight hatches have high rigidity and self-heavy mass, which is not conducive to the coordinated design of hatches, door frames and bulkheads on ships or offshore platforms

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