Negative Pressure Suction Sealing for Rough Surface Fixing
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Solution Overview
Problem
Existing negative pressure suction-based fixing devices are prone to detachment when suctioned onto rough surfaces due to the difficulty in forming an enclosed space because of the unevenness of the rough surfaces.
Innovation Solution
A negative pressure suction-based fixing device with a deformable sealing member that can conform to uneven surfaces, combined with a negative pressure creating assembly to generate and maintain suction, and optional features like solar power and magnetic attachment for enhanced stability and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing negative pressure suction-based fixing devices are used on rough surfaces, then the device structure remains simple, but the device detaches from the surface due to inability to form enclosed space
Solution Approach 1:
The patent employs a sealing member with elastic deformation capability that can conform to rough surface contours. This flexible sealing element adapts to surface irregularities by deforming elastically, maintaining the enclosed space necessary for negative pressure suction attachment on non-smooth surfaces.
Solution Approach 2:
The sealing member's elastic deformation property allows it to change its shape parameter dynamically to match the rough surface topology. This parameter change enables the sealing member to maintain contact and form an enclosed space despite surface unevenness, resolving the contradiction between attachment reliability and surface adaptability.
2Reliability
If a rigid sealing structure is used to maintain enclosed space, then the enclosed space formation is reliable, but the device cannot adapt to rough surfaces
Solution Approach 1:
The sealing member is designed as an elastic component rather than a rigid structure. This flexibility allows it to deform and conform to rough surface contours while still maintaining the integrity of the enclosed space, simultaneously achieving both enclosed space reliability and surface contour adaptation.
Solution Approach 2:
The sealing member transitions from a static rigid structure to a dynamic elastic element that can adapt its shape in response to surface variations. This dynamic capability allows the sealing member to maintain enclosed space integrity while adapting to different surface contours, resolving the contradiction between structural reliability and adaptability.
3Adaptability or versatility
If the sealing member is made highly deformable to fit rough surfaces, then surface adaptability improves, but the structural strength of the sealing member decreases
Solution Approach 1:
The sealing member utilizes elastic deformation within its material's elastic limit, changing its shape parameter to fit rough surfaces while maintaining sufficient structural strength. The elastic properties allow the material to deform reversibly without permanent damage, achieving both rough surface fitting capability and adequate strength.
Solution Approach 2:
The sealing member may employ composite material structures that combine high elasticity with sufficient strength. This composite approach allows the sealing member to achieve both high deformability for rough surface adaptation and adequate structural strength to withstand operational forces, resolving the contradiction between adaptability and strength.
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 device effectively secures to rough surfaces by forming a tight seal despite surface irregularities, providing reliable attachment and allowing for adjustable positioning of attached objects.
Implementation Method 1
capable of being elastically deformed to fit with the suction surface
Implementation Method 2
generate negative pressure in the accommodating cavity so as to create negative pressure in the enclosed space
Implementation Method 3
configured to convert solar energy into electrical energy
Data Source
AI summary
Disclosed is a negative pressure suction-based fixing device comprising a housing, a suction and holding member, a negative pressure creating assembly and a sealing member. The housing has an accommodating cavity thereinside. The suction and holding member has an abutting and holding surface recessed to form a suction cavity communicated with the accommodating cavity. The abutting and holding surface has a mounting structure connected to the sealing member, so that the sealing member is arranged on the abutting and holding surface for abutting against the suction surface. The sealing member can be elastically deformed to fit with the suction surface so as form an enclosed space together with the cooperation of the suction cavity and the suction surface. In this way, it is difficult for the negative pressure suction-based fixing device to fall off from a rough surface.