Buckled Vacuum Suction Pad Rubber Part for Strength and Replacement

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Solution Overview

Problem

Existing vacuum suction pads face issues of high replacement costs for rubber parts and low structural strength in the framework, leading to poor airtightness, deformation, and reduced applicability.

Innovation Solution

A vacuum suction pad with a replaceable rubber part structure, featuring a rubber part with an air hole, ringlike lip edge, and buckled connection to the framework, allowing for independent replacement of the rubber part and enhancing structural strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the rubber part and framework are fixed together to prevent detachment, then the rubber part remains securely attached, but the rubber part cannot be replaced separately, increasing maintenance costs

Engineering Contradiction:
Improveattachment reliabilityVSAvoidreplacement cost
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent divides the vacuum suction pad into separable components: the framework and the rubber part. The rubber part is designed as an independent replaceable component that can be detached and replaced separately from the framework, allowing maintenance without replacing the entire device.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a dynamic connection mechanism between the framework and rubber part through buckling elements. The connection allows the rubber part to be securely attached during use but easily detached when needed, transitioning between fixed and movable states based on operational requirements.

Inventive Principle:
Principle #15Dynamics

2Ease of manufacture

If a ringlike shell structure is formed around the cavity to achieve the cavity formation, then the cavity is properly formed for vacuuming, but the structural strength of the framework decreases, causing compression deformation and cracking

Engineering Contradiction:
Improvecavity formationVSAvoidframework strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent resolves the strength issue by moving the cavity-forming function from the framework (horizontal dimension) to the rubber part (vertical dimension). The rubber part extends downward to form the cavity, allowing the framework to maintain its structural integrity while the cavity function is achieved through the vertically extending rubber component.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 solution reduces replacement costs by allowing separate replacement of the rubber part and improves structural strength, enabling the vacuum suction pad to handle larger loads and maintain stability.

Implementation Method 1

the air pump is turned on to extract air from the cavity region, so that the framework and the object are fixed to each other in a negative pressure state

Methodology Applied
Scientific EffectNegative pressure: Pressure Gradient

Implementation Method 2

the lip edge below the deformation slot forms a bent portion configured to abut against a surface of an object by deformation after the vacuum suction pad extracts air

Methodology Applied
Scientific EffectDeformation: Deformation

Implementation Method 3

a buffer element is connected into the deformation slot, and hardness of the buffer element is less than hardness of the lip edge

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12290918B2Rubber part structure for vacuum suction pad and vacuum suction pad with replaceable rubber part
Publication Date: 2025.05.06 ZHEJIANG SHIJING TOOLS CO LTD
  • US12290918B2 patent drawing
  • US12290918B2 patent drawing
  • US12290918B2 patent drawing

AI summary

A rubber part structure for the vacuum suction pad includes a rubber part (1); an air hole (2) for air extraction and discharging is provided in the middle of the rubber part (1); a ringlike lip edge (3) is arranged around the rubber part (1); an air extraction chamber (4) communicated to the air hole (2) is formed on an inner side of the lip edge (3); and the flanging (5) is configured to be in buckled connection with the vacuum suction pad from the outside of the vacuum suction pad. The present disclosure has the characteristics of low replacement cost in a rubber part and high structural strength in a framework.