Hatch cover with internal lock mechanisms

Abstract

The invention provides a hatch cover with internal lock mechanisms, and belongs to the field of ship equipment. By the aid of the hatch cover, the problem of low locking speeds of existing hatches can be solved. The hatch cover with the internal lock mechanisms comprises a coaming, a cover plate, insertion rods, a guide block and an adjusting rod. A first support ring and a second support ring are arranged at the bottom of the cover plate, a plurality of first support holes and a plurality of second support holes are formed in the first support ring and the second support ring, a plurality of fixing grooves are formed in the inner wall of the coaming, the insertion rods are inserted in the first support holes and the second support holes, slide grooves are formed in the walls of the first support holes, sliders which are positioned in the slide grooves are arranged on the walls of the insertion rods, compression springs are arranged between the sliders and the annular walls, which are far away from the axis of the cover plate, of the slide grooves, the top of the guide block is movably connected onto the bottom surface of the cover plate by hinge pins, an inner hexagonal hole is formed in the center of the bottom of the guide block, arc-shaped guide surfaces are arranged on the outer wall of the guide block, the quantity of the arc-shaped guide surfaces is identical to that of the insertion rods, and an outer hexagonal detaching portion which is matched with the inner hexagonal hole is arranged on the top of the adjusting rod. The hatch cover has the advantage that the hatch cover can be quickly locked over long distances by the aid of the adjusting rod.

Description

technical field [0001] The invention belongs to the technical field of ship equipment and relates to a hatch cover with an internal locking mechanism. Background technique [0002] In recent years, with the frequent incidents of Somali pirates robbing ships, all countries, maritime departments and shipping companies in the world have strengthened their precautions against pirate attacks. In order to prevent pirates from boarding the ship and entering the interior cabins of the ship, more and more ships have begun to install anti-piracy devices on the doors and small hatches of each cabin entrance. At present, more bolts are installed inside or wire ropes are pulled, and then fixed with padlocks. [0003] However, the latch must be closed close to the hatch when it is set, and it is very troublesome to set the wire rope to fix it, so that the locking efficiency is low, and it is difficult to quickly realize anti-theft, so it is necessary to improve. Contents of the inventi...

AI Technical Summary

Problems solved by technology

[0003] However, the setting bolt must be closed close to the hatch, and it is very troublesome to set the wire rope to fix it, which makes the locking efficiency low and it is difficult to quickly realize anti-theft, so it is necessary to improve

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