Bayonet Locking Mechanism for Oil Filter Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional oil filters for engines are cumbersome and time-consuming to disassemble for filter cartridge replacement due to complex locking mechanisms.
Innovation Solution
A circumferential locking mechanism on the filter element allows for quick and secure attachment to the filter housing using a combined rotational and pushing motion, leveraging the existing bypass valve spring for counter-force, eliminating the need for invasive actions and additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional clips are used to lock the filter cartridge in the filter casing, then the filter cartridge is securely locked, but the disassembly process becomes time-consuming and cumbersome requiring screwdrivers to push on the clips through the filter material
Solution Approach 1:
The locking mechanism transitions from static clips requiring manual manipulation to a dynamic bayonet connection that locks and unlocks through rotational motion. The bayonet connection allows the filter element to be quickly removed by rotating it out of the locking position, eliminating the need for tools and reducing disassembly time while maintaining secure locking during operation
Solution Approach 2:
The locking mechanism is segmented into distinct locking and unlocking positions through the bayonet connection design. The filter element can be clearly distinguished between locked (operational) and unlocked (replacement) states through its rotational positioning, making the status obvious and simplifying the replacement process
2Stability of the object's composition
If traditional clips are used to lock the filter cartridge, then the filter cartridge remains fixed, but the removal process requires invasive actions with tools
Solution Approach 1:
The bayonet connection provides a dynamic locking system that is stable during rotation for locking but easily reversible for removal. The filter element is secured firmly when locked but can be quickly removed by rotating it to the unlocked position, eliminating the need for invasive tool-based removal actions
Solution Approach 2:
The bayonet connection is designed to be self-operating for both locking and unlocking. The filter element itself performs the locking action during installation by rotating into place, and the removal is achieved by simply rotating the filter element out, without requiring external tools or invasive actions
3Productivity
If a bayonet connection is used between filter housing cover and filter device, then the connection is faster to assemble, but the structure becomes more complex
Solution Approach 1:
The bayonet connection serves multiple functions: it provides secure locking, enables quick release, and indicates operational status through its rotational position. By consolidating these functions into a single connection mechanism, the overall device complexity is managed while achieving fast assembly and replacement
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The present invention relates to a filter element for an oil filter, configured to be releasably lockable in a filter housing comprising a circumferential locking mechanism. The invention further relates to a corresponding filter housing for accommodating the filter element.