Foldable steel door pedal mechanism for ship

Abstract

The invention relates to a foldable steel door pedal mechanism for a ship. The foldable steel door pedal mechanism comprises a pedal rotating mechanism and a retaining strip, wherein the retaining strip is fixed on the side, far from a door hinge, at the lower part of a steel door; the pedal rotating mechanism rotates around the door hinge; the outer edge of a pedal plate is in a shape of a gradual arc, and an arm of force H exists between the force bearing point that the pedal plate is in rigid contact with the retaining strip and the central line of the door hinge. In the state that the steel door is closed, the foldable steel door pedal mechanism is in a storage state, and the pedal plate is folded upwards and placed in a clearance between a cabin wall and the retaining strip. When the steel door is opened, the retaining strip is gradually departed from the outer edge of the pedal plate until being separated from the outer edge of the pedal plate, the pedal rotating mechanism automatically falls and unfolds under the action of self gravity until being in a horizontal state, and a stop block at the root of the pedal plate is limited by a rectangular part on an eye plate, so that the pedal plate is kept horizontal. When the steel door is closed, acting force produced by the retaining strip on the pedal forms rotating torque, and the pedal is automatically rotated and folded under the push action of the retaining strip until being accommodated in the clearance between the retaining strip and the cabin wall.

Description

technical field [0001] The invention relates to a stepping mechanism for a steel door for a ship, in particular to a stepping mechanism for a foldable steel door for a ship, which belongs to the technical field of stepping for a steel door. Background technique [0002] In order to make it easier for people to enter and exit door openings with a threshold height of more than 600mm, fixed steps are usually set on the threshold to facilitate personnel to enter and exit. On the other hand, in order to increase the cargo capacity of multi-purpose ships and container ships and make full use of the deck space, the front wall of the superstructure is often very close to the cargo, which causes the fixed steps to occupy part of the deck passage space, making the original net The channel that is not too wide is blocked, which brings inconvenience to the passage of personnel. [0003] According to Article 17(1) of Annex I of the 1966 International Convention on Load Lines, the thresh...

AI Technical Summary

Problems solved by technology

In the design of multi-purpose ships, container ships and other ship types, due to the restrictions on the layout, the width of the channel between the front wall of the superstructure and the deck cargo often takes the minimum value specified in the code (such as 800mm), but the fixed step The existence of the channel occupies the width of about 250mm of the channel, making the actual width of the channel less than 800mm, causing inconvenience for people to pass

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