Sucker Assembly Fixing Recess for Stable Attachment
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Solution Overview
Problem
Conventional sucker assemblies fail to provide a secure attachment to surfaces due to vibration and moment-induced detachment of support racks, caused by gaps and distances between the sucker and the support rack, leading to unstable adhesion.
Innovation Solution
The sucker assembly incorporates a hollow pressing member with a fixing recess that flushes against the surface, locking the support rack in place and eliminating gaps, and a pivot shaft connecting the control handle to the pull bar, ensuring the support rack contacts the surface closely and prevents moment-induced detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the support rack is spaced from the surface, then the sucker assembly can be easily attached and detached, but the support rack will be vibrated or swayed freely and produce moments causing detachment
Solution Approach 1:
The pressing member is designed to be movable along the pull bar, transitioning between a first position for attachment and a second position for detachment. This dynamic positioning allows the system to switch between ease of operation and attachment stability as needed
Solution Approach 2:
The distance between the pressing member and the sucker is changed by moving the pressing member along the pull bar. When attached, the pressing member is positioned to eliminate gaps and prevent vibration; when detaching, it is moved to create space for easy removal
2Ease of manufacture
If a distance is defined between the support rack and the sucker, then the support rack can be easily installed, but a moment is produced that pulls the sucker from the surface
Solution Approach 1:
The pressing member dynamically adjusts its position along the pull bar to control the distance between the support rack and sucker. During installation, temporary spacing facilitates positioning, but once installed, the pressing member moves to eliminate the distance and prevent moment-induced detachment
Solution Approach 2:
The pressing member is pre-positioned to allow initial installation of the support rack with some spacing, then subsequently moves to the attachment position to eliminate gaps and secure the connection against moment forces
3Device complexity
If the pressing member is fixed in position, then the structure is simple, but the support rack will be vibrated or swayed freely
Solution Approach 1:
The pressing member is designed to move along the pull bar between a first position for attachment and a second position for detachment. This controlled movement provides vibration resistance during operation while maintaining relatively simple structure through the use of basic sliding or telescopic mechanisms
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
This design enhances attachment security by eliminating vibrations and moments, allowing the sucker to maintain a stable vacuum suction and prevent removal due to the weight of the support rack, resulting in a more reliable and stable attachment to surfaces.
Implementation Method 1
an elastic member mounted on the pull bar and biased between the sucker and the pressing member
Implementation Method 2
the sucker is compressed and deformed by the peripheral rim of the pressing member to produce a vacuum suction force between the surface and the sucker
Data Source
AI summary
A sucker assembly includes a sucker, a pull bar secured on the sucker, a pressing member mounted on the pull bar and pressing the sucker, an elastic member mounted on the pull bar and biased between the sucker and the pressing member, a control handle pivotally mounted on the pressing member, and a pivot shaft extending through the control handle, the pressing member and the pull bar. The pressing member has a periphery provided with a mounting seat which has a fixing recess to receive a hanging rod of a support rack and to abut a surface. Thus, the hanging rod of the support rack is locked onto the surface by the fixing recess of the mounting seat so that the support rack contacts with the surface exactly and closely.