Integrated Latch for Launder Cover Preventing Sudden Closure
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Solution Overview
Problem
Existing launder channel cover designs, such as those using restraint cables or prop-rods, fail to prevent sudden closure, which can damage the support flange or cover panel, and create obstructions for cleaning access and are prone to accidental disengagement.
Innovation Solution
An integrated latch/hold-open system featuring an angled resting structure and locking post/pin mechanism that secures the cover panel in an open position, eliminating the need for restraint cables or prop-rods, allowing unobstructed access and preventing accidental closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a restraint cable is used to prevent over-rotation, then the cover panel is protected from damaging over-rotation, but the cover panel cannot be held in an open position for cleaning access
Solution Approach 1:
The restraint cable system is segmented into multiple functional components: a cable for preventing over-rotation, a separate latch mechanism for holding the open position, and a locking mechanism for securing the closed position. This segmentation allows each component to perform its specific function effectively without the limitations of a single unified system.
Solution Approach 2:
The system transitions from a static restraint cable to a dynamic multi-position system that can adapt between closed, open, and locked positions. The latch and locking mechanisms enable the cover panel to be held dynamically in different positions, providing both cleaning access and protection against sudden closure.
2Ease of operation
If a prop-rod is used to hold the cover panel open, then access for cleaning is improved, but the prop-rod creates an obstruction for walking through the launder channel and is prone to accidental disengagement
Solution Approach 1:
The prop-rod is extracted and replaced with a latch mechanism that integrates into the mounting section structure. The locking post and receiving hole system eliminates the need for a separate prop-rod component, removing the obstruction issue while maintaining the ability to hold the cover panel open for cleaning access.
Solution Approach 2:
The holding open function is merged with the mounting section structure itself through the locking post and receiving hole integration. This combines the support function with the structural elements, eliminating the need for a separate prop-rod that would create obstructions.
3Speed
If the cover panel is allowed to close quickly, then the operation speed is improved, but the support flange and cover panel can be damaged due to slamming
Solution Approach 1:
The locking mechanism provides beforehand protection by securing the cover panel in the closed position before any closing action occurs. The restraint cable and locking system work together to control the closing process, preventing sudden slamming that would cause damage to the support flange and cover panel.
Data Source
AI summary
A system is provided for covering a launder channel of a clarifier tank, the launder channel having a tank wall and launder channel wall. The system comprises a mounting section connected to the launder channel wall, a hinge, and an openable cover panel, movable between a closed and open position. The mounting section includes an angled resting structure for supporting the cover panel, when in the open position, away from the mounting section.