Pressure-Tight Door Hinge With Sliding Movable Member
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Solution Overview
Problem
Pressure-tight doors in industrial facilities face challenges in aligning hinges vertically, which affects their operation, and require manual compression of gaskets for pressure-tight performance, making them inefficient for automatic closure during disasters like floods or gas explosions.
Innovation Solution
A hinge fixating part with a movable member and sliding devices, such as casters or an oil bush, is integrated between the door frame and hinge, allowing the hinge to slide bidirectionally and compress the gasket only under applied pressure, with an elastic member for quick return to original position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gasket is compressed to achieve pressure-tight performance, then the pressure-tight performance is improved, but the automatic closing capability cannot function and manual intervention is required
Solution Approach 1:
The hinge is designed with movable and fixed members that allow dynamic movement. The movable member can slide along the fixed member, enabling the hinge to move automatically in response to pressure changes. This dynamic mechanism allows the door to self-close under pressure without manual intervention while maintaining pressure-tight performance when compressed.
2Reliability
If movable hinges are used to allow gasket compression, then the pressure-tight performance is improved, but the axes of the hinges cannot be aligned along a vertical line causing operational problems
Solution Approach 1:
The hinge is segmented into a fixed member and a movable member. The fixed member is attached to the door frame while the movable member is attached to the door. This segmentation allows the movable member to slide along the fixed member, enabling proper alignment of hinge axes along a vertical line while still allowing the necessary movement for gasket compression under pressure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The pressure-tight door effectively blocks leaks during flooding or explosions by compressing the gasket under applied pressure and returns to its original position quickly when pressure is released, enhancing operational efficiency and safety.
Implementation Method 1
an elastic member for quick return to original position
Implementation Method 2
The elastic member may be a spring made of a metallic material or a rubber material
Implementation Method 3
The sliding device may be a caster or an oil bush
Data Source
AI summary
A pressure-tight door allowing movement of hinges includes: a hinge fixating part including a fixed member having one surface with a movable groove formed therein and the other surface fixed to a door frame, and a movable member having one surface inserted into the movable groove so as to slide bidirectionally on the movable groove and a hinge attached to the other surface of the movable member, connected to a door and sliding together with the movable member. The movable member of the hinge fixating part slides inwardly together with the hinge only when the pressure due to flooding or explosion is applied to the pressure-tight door, whereby the pressure-tight door is able to effectively block any leakage by compressing the gasket.