Detachable Adhesive Structure for Wall Climbing on Uneven Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wall surface climbing aids face limitations such as requiring pressure reducing devices, being limited to ferromagnetic or smooth surfaces, and posing safety issues with easy detachment, especially when using suction cups or magnets.
Innovation Solution
A detachable structure with a support body, detachable parts, and a buffer section, utilizing adhesive films and skeletons to provide strong adhesion to various surfaces without a driving device, allowing easy detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If suction cups are used for wall surface climbing, then adhesion to smooth surfaces is achieved, but the device requires a pressure reducing device which increases cost and complexity
Solution Approach 1:
The patent replaces the mechanical suction cup system with a biological mimicry system based on gecko foot structure. The adhesive pads with microscopic protrusions replicate the gecko's setae structure, enabling adhesion through van der Waals forces rather than mechanical suction, thereby eliminating the need for pressure reducing devices while maintaining strong adhesive strength on smooth surfaces
Solution Approach 2:
The invention changes the adhesion mechanism from pressure-based (suction cups) to surface-area-based (microscopic protrusions). By increasing the contact area at the microscopic level through numerous small protrusions, the adhesive strength is enhanced without requiring complex pressure control systems
2Strength
If magnets are used for wall surface climbing, then adhesion force is provided, but the application is limited to ferromagnetic materials only
Solution Approach 1:
The patent creates a universal adhesion system that works on various surface materials (smooth surfaces, rough surfaces, non-ferromagnetic materials) by mimicking the gecko's adaptive foot structure. The microscopic protrusions can conform to different surface textures and materials, providing broad compatibility beyond the limitations of magnetic adhesion
3Ease of operation
If wedge-shaped microscopic adhesive structures are used for easy detachment, then detachment becomes simple, but safety is compromised as detachment occurs with slight upward movement
Solution Approach 1:
The patent applies different structural qualities to different parts of the adhesive system. The adhesive pads have a specific structure with protrusions optimized for strong adhesion, while the support structure provides mechanical stability. This local differentiation allows the adhesive function to be strong and secure while still permitting controlled detachment through deliberate action rather than accidental movement
4Strength
If suction cups are used for wall surface climbing, then adhesion to smooth surfaces is achieved, but the device is limited to smooth surfaces only
Solution Approach 1:
The patent introduces dynamic adaptability through the microscopic protrusion structure that can conform to different surface topographies. The protrusions can adjust their configuration based on surface roughness, allowing the same adhesive structure to effectively bond to both smooth and rough surfaces, unlike rigid suction cups that require smooth surfaces
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 structure achieves strong adhesive strength on non-ferromagnetic and uneven surfaces, ensuring easy detachment and eliminating the need for pressure reducing devices, suitable for wall climbing aids and robots.
Implementation Method 1
an adhesive film supported by the first skeletons
Implementation Method 2
a buffer section corresponding to at least one of the plurality of detachable parts and disposed between the corresponding at least one detachable part and the working part in the laminating direction
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 2C~3
AI summary
A detachably attachable structure (100) with respect to a target surface (21a) has a support body (10) having a facing side (11) and a back side (12), a plurality of detachable parts (20) detachably attached to the target surface (21a), a working part (30), and a buffer section (40) disposed between the detachable parts (20) and the working part (30). Each of the plurality of detachable parts (20) has an end portion on one side, which is a fixed end (20a) fixed to the support body (10), and an end portion on the other side, which is a movable end (20b) movable in a direction away from the support body using the fixed end as a shaft in an arrangement direction (y). The plurality of detachable parts (20) have at least two first skeletons (22, 22A, 22B) that connect the fixed end (20a) and the movable end (20b), and an adhesive film (21) supported by the first skeletons.