Vacuum Adhesion Partition Structure for Irregular Wall Surfaces
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Solution Overview
Problem
Vacuum adhesion devices struggle to maintain stable adhesion on wall surfaces with gaps and irregularities, as existing partitions can be pulled into the decompression space, reducing adhesion force.
Innovation Solution
An adhesion device with a decompression space defined by a base, a first elastic partition, a second elastic partition closer to the wall surface, and a restricting member with higher rigidity to prevent the second partition from being pulled into the decompression space, ensuring stable adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a partition made of elastic material is used to contact the wall surface, then adaptability to gaps and irregularities is improved, but the partition can be pulled into the decompression space causing instability
Solution Approach 1:
The partition is divided into multiple segments (first partition and second partition) connected by elastic members. This segmentation allows each segment to independently adapt to wall surface irregularities while the connection structure prevents excessive deformation into the decompression space, resolving the contradiction between adaptability and stability.
Solution Approach 2:
Different parts of the partition system have different properties: the elastic members provide flexibility for adapting to irregularities, while the rigid first restricting member provides structural support to prevent pulling into the decompression space. This local differentiation of material properties resolves the contradiction.
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 adhesion device achieves more stable adhesion on wall surfaces with gaps and irregularities by preventing the partitions from being pulled into the decompression space, maintaining effective contact and movement.
Implementation Method 1
Vacuum adhesion using a vacuum pump or a fan is effective among the above-mentioned adhesion methods. In vacuum adhesion, the air in the space between the robot and the surface to be adhered to is exhausted to depressurize the space, and the robot is adhered to the surface by the difference of pressure between the space and the atmosphere.
Implementation Method 2
a first partition disposed on a fringe of the base, wherein the first partition forms the base side portion of the peripheral wall of the decompression space with an elastic member
Data Source
AI summary
An adhesion device 10 that defines a decompression space D to be decompressed between a wall surface W and the adhesion device 10, and adheres to the wall surface W, comprises: a base 11 disposed facing a wall surface W at a distance from the wall surface W and connected to a decompression device 14 that depressurizes the decompression space D created between the base 11 and the wall surface W; a first partition 12 disposed on a fringe of the base 11, wherein the first partition 12 forms the base 11 side portion of the peripheral wall of the decompression space D with an elastic member; a second partition 13 disposed closer to the wall surface W side than the first partition 12, wherein the wall surface W side portion of the peripheral wall of the decompression space D is formed by an elastic member so that the wall surface W side end of the second partition 13 contacts the wall surface W; and a first restricting member 16 formed in a frame shape corresponding to that of the second partition 13 by a member having a higher rigidity than that of the second partition 13, wherein the first restricting member 16 is disposed on the second partition 13 so as to restrict the deformation of the base 11 side end of the second partition 13 from being pulled into the decompression space D as the decompression space D becomes negatively pressured.