Hatch cover opening device

Abstract

The invention belongs to the technical field of ships and relates to a hatch cover opening device which structurally comprises a hatch cover, an adjustable connecting rod, a driving rod and an oil cylinder. The driving rod is a triangle provided with three hinging points, one end of the hatch cover is hinged on a hull, the lower end of the oil cylinder is hinged on the hull, the upper end of the oil cylinder is connected with the first hinging point of the driving rod, the hatch cover is connected with the second hinging point of the driving rod, and the third hinging point is connected with the hull through the adjustable connecting rod and crosses a phantom line formed by the second hinging point and the hinging point of the adjustable rod and the hull to be in a self-locking position. Self-locking of the hatch cover on the hull in an opening state is realized through a mechanical self-lock, even if the oil cylinder is damaged, the mechanical self-lock can guarantee the hatch cover to be locked at the position, and the hatch cover opening device is simple in structure, convenient to use, safe and reliable; when the hatch cover needs to be closed, unlocking can be realized by directly drawing through the oil cylinder, automation is realized from locking of the hatch cover when opened in place to unlocking of the hatch cover when closed, and manual operations are not needed.

Description

technical field [0001] The invention relates to a hatch cover opening device, which belongs to the technical field of ships. Background technique [0002] The hatch cover on the ship is used to cover and close the cargo hold. After the hatch cover is opened, it is required that when the hatch cover is opened to the maximum position, it is locked and fixed on the hull when the hatch cover is kept at the maximum position, so that the hatch cover will not occur. Any movement, so as to ensure normal loading and unloading, otherwise, if the hatch cover slips during this process, safety accidents will easily occur. After the loading and unloading is completed, the hatch cover is moved to the hatch position, and then the cargo compartment is closed. [0003] At present, the method of controlling the hatch cover to be locked in the open position usually adopts a semi-automatic limit device. The space is small and it is difficult for people to get in and out, so this method is not ...

AI Technical Summary

Problems solved by technology

[0003] At present, the method of controlling the hatch cover to be locked in the open position usually adopts a semi-automatic limit device. The space is small and it is difficult for people to get in and out, so this method is not applicable

At this time, the hydraulic locking device is usually used to fix the opened hatch cover on the hull through the hydraulic device. In some special cases, such as internal leakage of the oil cylinder, the hatch cover will slide down, resulting in self-locking failure, resulting in danger, safety hazard

Images