Heavy-Load Suction Cup with Pneumatic Cavity and Visual Indicator
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Solution Overview
Problem
Existing suction cups have limited load-carrying capacity due to weak adhesion, poor reusability, short lifespan, and lack of self-inspection features, especially when affected by environmental factors like temperature and humidity.
Innovation Solution
A heavy-load suction cup device with a cup body and cap forming a cavity, equipped with an air evacuation system including an air pump and one-way valves, allowing for enhanced suction force and notification of suction force weakening through visual indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a body of adhesives is used to affix the suction cup to the adhered surface, then the suction cup can be easily installed and removed, but the adhesion force is relatively weak and limits the load-carrying capacity
Solution Approach 1:
The patent employs pneumatic principles by using an air pump to evacuate air from the cavity formed between the cup body and cap, creating a negative pressure environment. This negative pressure generates strong suction force that holds the suction cup firmly on the adhered surface, dramatically increasing both adhesion force and load-carrying capacity while maintaining ease of installation and removal through the manual pump mechanism.
2Ease of operation
If a body of adhesives is used to affix the suction cup, then the suction cup can be easily installed, but the structure has poor reusability as the adhesives suffer reduced adhesion after repeated uses
Solution Approach 1:
The patent replaces adhesive-based attachment with a pneumatic suction mechanism. The air pump creates negative pressure within the cavity, generating holding force that does not degrade with repeated use. The mechanical components (cup body, cap, pump, valves) are designed for durability and can be reused numerous times without losing performance, thereby significantly improving reusability and cyclic use capability.
Solution Approach 2:
The air pump is designed to be manually operated by the user, allowing self-service installation and removal without requiring additional tools or complex mechanisms. The user simply operates the pump to create or release the vacuum, enabling easy repeated use while maintaining reliable adhesion.
3Ease of manufacture
If a simple suction cup structure is used, then the device is simple to manufacture, but it has a short life span and is affected by environmental factors such as temperature and humidity
Solution Approach 1:
The suction cup is divided into separate components: a cup body, a cap that forms a cavity, and a manual air pump. This segmentation allows each component to be optimized for environmental resistance while maintaining manufacturing simplicity. The sealed cavity structure protects internal components from environmental factors, and the modular design enables easy assembly and replacement.
Solution Approach 2:
The patent uses a manual air pump instead of electronic components, avoiding complex circuits and sensors that would be sensitive to environmental factors. The mechanical design with simple valves and seals creates a robust system that withstands temperature and humidity variations without requiring expensive protective materials or complex environmental compensation mechanisms.
4Device complexity
If a simple suction cup structure is used, then the device is simple, but it cannot remind a user to restore the suction force or carry out self-inspection when the suction force weakens
Solution Approach 1:
The patent incorporates a visual indicator that changes color or appearance based on the suction force status. When the suction force weakens or needs restoration, the indicator provides a visible signal to the user, enabling self-inspection without adding complex electronic sensors or notification systems. This maintains structural simplicity while addressing the information feedback requirement.
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 achieves increased load-carrying capacity, extended lifespan, and improved reusability, with self-inspection capabilities that notify users of suction force changes, maintaining performance across varying environmental conditions.
Implementation Method 1
evacuate air so as to make an interior cavity of the cup body a negative pressure cavity
Implementation Method 2
The air evacuation hole is connected, via a one-way inlet valve, to the air pump. The air pump has an outlet opening to which a one-way outlet valve is mounted.
Implementation Method 3
a suction cup is used to affix, through a suction force, to an adhered surface
Data Source
AI summary
The present invention generally relates to the field of suction cups, and more particularly to a rotatable multi-cup suction device. The heavy-load suction cup device includes a cup body that is directly contactable with an adhered surface. The cup body is provided thereon with a cap that defines, together with the cup body, a cavity. The cup body includes a coupling rod. The cap includes a mounting hole formed in a central portion thereof for receiving the coupling rod to extend therethrough. The cup body includes an air evacuation hole that is connectable to and thus communicates with an air evacuation device. The device can notify a user when the suction force gets weakening in order to restore or replenish the suction force and has an improved functionality of self-inspection. Further, the suction cup device has an increased load capacity, an extended life span, and is reusable for numerous times.