Folding hangar door

Abstract

The invention relates to the technical field of offshore platforms, and discloses a folding hangar door. The folding hangar door comprises a first door body and a second door body arranged in sequencefrom top to bottom, and the first door body is hinged to the side wall of a hangar through a first hinge. The second door body is hinged to the first door body through a second hinge, and a first turning device for driving the first door body to rotate around the first hinge is arranged between the first door body and the side wall of the hangar. A second turning device for driving the second door body to rotate around the second hinge is arranged between the second door body and the first door body, the second turning device is used for folding the first door body and the second door body together, and then the first door body and the second door body are turned to be the upper part of a door opening by the first turning device, so that when the hangar door is opened, the space inside and outside the hangar is not occupied, the space occupation is small, the thickness and stiffness of the first door body and the second door body are not restricted, and safety is ensured; and in addition, the hangar door has the small area of force after being opened, can be close to the side wall of the hanger to prevent damage to the hangar door by wind and waves.

Description

technical field [0001] The invention relates to the technical field of offshore platform equipment, in particular to a folding hangar door. Background technique [0002] In order to transfer personnel in the event of a safety accident, the offshore platform will be equipped with a helicopter. There is a hangar for parking helicopters on the ocean platform. Due to the limited space of the offshore platform, the large number of systems in the hangar, and the close proximity of the hangar to the helideck, etc., the requirements for the hangar door are relatively high, and the hangar door needs to occupy a small space when it is opened and closed, and it is easy to operate, etc. . For existing hangar doors that open inwardly or outwardly, a certain space is needed for the door body to rotate when opening or closing, which is not suitable for hangars with limited space and hinders the movement of helicopters. In addition, there is also a roll-up hangar door. Since the offshore...

AI Technical Summary

Problems solved by technology

For existing hangar doors that open inward or outward, a certain space is required for the door to rotate when opening or closing, which is not suitable for hangars with limited space and hinders the movement of helicopters

In addition, there is a roll-up type hangar door. Since the offshore platform is located on the sea when it is working, the wind and waves are relatively large. When the roll-up gate is thin, the hangar door is not rigid enough and is easily damaged.

In addition, there are currently hangar doors that use rack and pinion to move the door body upwards. Due to the heavy weight of the hangar door, the hangar door with this structure is prone to overload and slipping, which is extremely unsafe. If the door body moves upwards, it is easy to have a large force-bearing area of ​​the door body and be blown away under the action of the sea breeze.

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