Quick and labor-saving opening and closing handle mechanism for pressure-resistant hatch cover

Abstract

The invention relates to a quick and labor-saving opening and closing handle mechanism for a pressure-resistant hatch cover, comprising a pressure-resistant hatch cover. A connecting shaft is vertically mounted in the middle of the pressure-resistant hatch cover. A hand wheel is installed at the top of the connecting shaft and comprises a hand wheel body and a hand wheel ring. The hand wheel bodyis of a columnar structure matched with the top of the connecting shaft. A plurality of telescopic assemblies extending outwards and penetrating through the hand wheel ring are evenly distributed in the circumferential direction of the hand wheel body, and lock catch assemblies controlling the telescopic assemblies to extend or retract are installed in the telescopic assemblies respectively. The acting force arm of the hand wheel is prolonged, operation force is reduced, the hatch cover opening speed is increased, and danger is reduced; different lengths and section numbers can be selected forthe telescopic assemblies according to different working conditions, and the application range is wide; a sealing cover can reduce corrosion of seawater to the telescopic assemblies and the lock catch assemblies, and the requirement for material performance is lowered; the telescopic assemblies do not extend outwards, so that the possibility of hooking accidents is reduced, and the operation safety is ensured; and the handle mechanism is low in manufacturing cost, reliable in performance and capable of being matched with other hatch covers.

Description

technical field [0001] The invention relates to the technical field of hatch cover opening and closing, in particular to a fast and labor-saving opening and closing handle mechanism of a pressure-resistant hatch cover. Background technique [0002] The pressure-resistant hatch cover is an important equipment used in submarines, submersibles and other manned platforms to achieve watertightness and pressure. It plays an important role in situations such as emergency escape, so the convenience of opening and closing the pressure-resistant hatch cover is particularly important. During the long-term diving operation and maintenance process, it was found that the opening and closing operation of the hatch cover has problems such as high labor intensity and long opening and closing time, and the overall operation efficiency is low, especially when an accident occurs in the cabin and requires emergency evacuation. The escape time was seriously delayed due to the slow opening of the...

AI Technical Summary

Problems solved by technology

During the long-term diving operation and maintenance process, it was found that there were problems such as high labor intensity and long opening and closing time in the opening and closing operation of the hatch cover, and the overall operation efficiency was low, especially when an accident occurred in the cabin and emergency evacuation was required. The escape time was seriously delayed due to the slow opening of the pressure hatch

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