Sealing door based on Archimedes helix

Abstract

The invention provides a sealing door based on the Archimedes helix. The sealing door comprises a door plate, a main shaft, a spiral disc and four latches. The main shaft is located at the center of the door plate plane and penetrates through the door plate in a mode that the main shaft is perpendicular to the door plate plane and can rotate freely relative to the door plate. The spiral disc is fixed to the main shaft, and a groove in an Archimedes helix shape is formed in the spiral disc. The four latches are uniformly distributed around the main shaft, and each latch is restrained on the door plate through a corresponding supporting device. Each latch can move in the axial direction of the latch relative to the corresponding supporting device, and a roller is mounted at the end, close to the spiral disc, of each latch. Each roller is located in the groove in the Archimedes helix shape. The other ends of the latches are in conical shapes and make contact with the slot-wedge-shaped surface of a door frame. The main shaft drives the spiral disc and drives the latches to move in the radial direction of the spiral disc, and meanwhile the door plate is compelled to move in the axial direction of the main shaft, and a sealing strip is compressed, so that the airtightness effect is good, the structure is simple and saves labor, and cost is low.

Description

technical field [0001] The invention relates to the technical field of sealing, in particular to a sealing door based on the Archimedes spiral. Background technique [0002] As we all know, airtight doors are widely used in various industries such as submarines, spacecraft, and aircraft. A hermetic door with good sealing performance can ensure the safety of personnel on submarines, spaceships and airplanes. The sealing effect of the airtight door is an important indicator to evaluate the quality of a airtight door. [0003] At present, when the traditional airtight door is closed, only the sealing ring embedded in the corresponding position of the door frame and the door frame is in close contact, and the door frame and the door are squeezed on one side, so that the force of the sealing ring is uneven, and it is easy to generate a gap. good sealing, [0004] Simultaneously because there is certain pressure difference and temperature difference inside and outside the cabin...

AI Technical Summary

Problems solved by technology

[0003] At present, when the traditional airtight door is closed, only the sealing ring embedded in the corresponding position of the door frame and the door frame is in close contact, and the door frame and the door are squeezed on one side, so that the force of the sealing ring is uneven, and it is easy to produce a gap, which does not have good sealing,

[0004] At the same time, because there is a certain pressure difference and temperature difference between the inside and outside of the cabin door, the sealed door with uneven force will inevitably produce certain gaps, resulting in poor sealing.

[0005] Existing airtight doors are either complex in structure and difficult to manufacture, or the force amplification effect is poor and laborious

[0006] It can be seen that in the prior art, the sealing effect of the airtight door with a simple structure is not good, and the airtight door with a good sealing effect has a complicated structure and high cost.

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