Pocket Filter Clamping Strip With Sequential T-Shaped Locking
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Solution Overview
Problem
Existing pocket filters face issues with increased flow resistance and risk of filter layers being pulled out of the clamping strip during operation, leading to unfiltered medium flow.
Innovation Solution
A clamping strip design with a T-shaped locking element and hook-shaped locking elements, where the proximal leg of the cross-piece contacts the proximal hook-shaped locking element first, ensuring the filter layers are securely clamped between the locking elements in the locked state, reducing the risk of slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the clamping strip is closed to secure filter layers, then the filter layers are clamped firmly, but the filter layers may be pulled out due to increased flow resistance during operation
Solution Approach 1:
The T-shaped locking element is designed to engage with the hook-shaped locking elements in advance, creating a pre-secured connection that prevents the filter layers from being pulled out during operation. The locking elements are positioned and configured before operation begins, establishing a robust clamping mechanism that resists the forces generated by flow resistance.
2Productivity
If automatic insertion and locking of filter layers is implemented, then manufacturing efficiency is improved, but the clamping strip design must facilitate easy automatic operation
Solution Approach 1:
The clamping strip design allows the filter layers to be automatically inserted and locked without complex manual intervention. The T-shaped locking element and hook-shaped locking elements are configured to engage automatically when the clamping strip is closed, enabling automated assembly processes while maintaining ease of operation.
3Reliability
If the cross-piece contacts both hook-shaped locking elements simultaneously, then the locking is achieved, but the filter layers may slip out before complete locking
Solution Approach 1:
The proximal leg of the cross-piece is designed to contact the proximal hook-shaped locking element first during the closing motion, establishing a preliminary secure connection. This sequential engagement ensures that the filter layers are secured at the proximal end before the distal end is locked, preventing slippage during the locking process.
Solution Approach 2:
The cross-piece is divided into proximal and distal legs that engage with the hook-shaped locking elements in sequence rather than simultaneously. This segmentation of the locking action ensures controlled engagement, where the proximal leg secures the filter layers first, preventing slippage before the distal leg completes the locking.
Data Source
AI summary
A pocket filter comprising a plurality of filter pockets, a frame holding the filter pockets, and at least one clamping strip fixing filter layers of two neighboring filter pockets. A profile of the clamping strip is designed in one piece and has a first section and a second section that are movably connected to one another, a T-shaped locking element is formed on the first section, and the T-shaped locking element has a base and a cross-piece extending substantially perpendicularly to the base. A proximal hook-shaped locking element and a distal hook-shaped locking element are formed on the second section, between which the T-shaped locking element is arranged and which engage behind the cross-piece when the clamping strip is in a locked state in which the filter layers of the two neighboring filter pockets are clamped in the clamping strip.