Dual-Layer Vacuum Suction Cup for Uneven Surface Sealing
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Solution Overview
Problem
Conventional vacuum suckers have a limited application on uneven surfaces due to poor sucking force caused by hard rubber surfaces, which struggle to form a sealed space with uneven surfaces.
Innovation Solution
A vacuum sucker with a sucking disc body featuring a combination of a soft rubber layer and a hard rubber layer, where the soft rubber layer is softer and more deformable to follow uneven surfaces, and the hard rubber layer provides support strength, enhancing the sucker's ability to maintain a sealed vacuum on uneven surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a hard rubber surface is used for the sucking face, then the supporting capability is strong, but the sucking force on uneven surfaces is poor
Solution Approach 1:
The sucking surface is divided into two distinct layers with different properties: a hard rubber layer providing structural support and a soft rubber layer providing adaptive sealing. This local differentiation of material properties allows each layer to perform its specific function optimally - the hard layer maintains shape and strength while the soft layer conforms to uneven surfaces for reliable suction.
Solution Approach 2:
The sucking surface employs a composite structure combining hard rubber and soft rubber layers. This composite material approach integrates the advantages of both materials - the hardness and support capability of hard rubber with the flexibility and conformability of soft rubber - to resolve the contradiction between structural strength and adaptive sealing on uneven surfaces.
2Reliability
If a soft rubber surface is used for the sucking face, then the sucking force on uneven surfaces is improved, but the supporting capability is reduced
Solution Approach 1:
The sucking surface is divided into two distinct layers with different properties: a hard rubber layer providing structural support and a soft rubber layer providing adaptive sealing. This local differentiation of material properties allows each layer to perform its specific function optimally - the hard layer maintains shape and strength while the soft layer conforms to uneven surfaces for reliable suction.
Solution Approach 2:
The sucking surface employs a composite structure combining hard rubber and soft rubber layers. This composite material approach integrates the advantages of both materials - the hardness and support capability of hard rubber with the flexibility and conformability of soft rubber - to resolve the contradiction between structural strength and adaptive sealing on uneven surfaces.
3Device complexity
If a single-layer rubber structure is used, then the structure is simple, but the application scope on different surfaces is limited
Solution Approach 1:
The sucking surface employs a composite structure combining hard rubber and soft rubber layers. This composite material approach integrates the advantages of both materials - the hardness and support capability of hard rubber with the flexibility and conformability of soft rubber - to resolve the contradiction between structural strength and adaptive sealing on uneven 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 combination of soft and hard rubber layers improves the sucker's ability to maintain a strong sucking force and seal on uneven surfaces, expanding the application scope of vacuum suckers.
Implementation Method 1
the soft rubber layer is easily deformed under a suction pressure, thus the soft rubber layer can better follow a surface of a support body
Implementation Method 2
The sucking disc body can be sucked on or detached from a wall or other support bodies by the slider pushing mechanism... a vacuum space is formed between the sucking disc body and the support body, thus the vacuum sucker is immobilized with respect to the support body
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Provided are a suction cup and a vacuum suction cup having the same. The suction cup comprises a suction cup body (6) comprising a connection part at an external side thereof, and a suction surface at an internal side thereof. The suction cup body (6) comprises a soft rubber layer (62) and a hard rubber layer (61). The soft and hard rubber layers together form the suction surface of the suction cup body. The soft rubber layer has hardness less than that of the hard rubber layer. In a sucking state, the hard rubber layer can provide favorable supporting strength, and the soft rubber layer readily deforms by a suction pressure to fill a supporting surface, facilitating to seal the supporting surface tightly. The soft and hard rubber layers enhance a suction capacity of the suction cup body on an uneven surface, expanding a scope of an application of the vacuum suction cup.