Bayonet Securing Ring for Tool-Free Field Device Housing Closure
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Solution Overview
Problem
The use of screws for securing housings in field devices complicates maintenance and poses a safety risk due to the need for tools and potential loss of screws, especially in industrial settings where secure and reliable opening and closing are required.
Innovation Solution
A ring-shaped securing part with bayonet grooves and teeth that interlock without the need for screws, providing a robust and tool-free mechanism for opening and closing the housing, utilizing resilient materials and beveled edges to facilitate secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to secure the housing, then the housing can be reliably closed, but maintenance becomes more complicated and screws can be lost
Solution Approach 1:
The invention extracts the problematic screws from the housing closure system and replaces them with an integrated bayonet groove mechanism. The securing part incorporates bayonet grooves that directly engage with the housing body, eliminating the need for separate fastening elements like screws that can be lost or require tools for removal.
Solution Approach 2:
The securing part merges the closure function and securing function into a single integrated component. The bayonet grooves are formed directly in the securing part, combining what were previously separate elements (cover, screws, housing) into a unified structure that simplifies both assembly and maintenance.
2Reliability
If screws are used for closing the housing, then secure closure is achieved, but tools are required and additional safety risks arise
Solution Approach 1:
The invention removes external fastening tools and separate securing elements from the system. The bayonet groove mechanism provides inherent securing through its geometric engagement with the housing body, eliminating the need for screwdrivers or other tools while reducing the number of discrete components.
Solution Approach 2:
The bayonet groove mechanism is self-securing through its geometric design. The grooves and corresponding features automatically engage and lock when the securing part is installed, providing secure closure without requiring external tools or additional fastening elements.
3Reliability
If traditional screw fastening is used, then the housing can be closed, but the structure becomes more complex and prone to component loss
Solution Approach 1:
The invention combines the securing function into the securing part itself through integrally formed bayonet grooves. This eliminates the need for separate screws, washers, and other fastening components, reducing overall device complexity while maintaining reliable closure through the bayonet engagement mechanism.
Data Source
AI summary
A securing part for a housing is ring-shaped and extends around a longitudinal axis, wherein the securing part has a first edge and a second edge opposite the first edge, wherein the first edge has at least two bayonet grooves which are suitable for securing the securing part to the housing, wherein the bayonet grooves extend along the longitudinal axis and about the longitudinal axis transverse to the longitudinal axis, wherein the bayonet grooves each have an inlet, a ridge, a stop and a groove base with a groove depth, wherein the stop limits the bayonet grooves in their extension about the longitudinal axis, wherein the ridge is arranged on the groove base between the inlet and the stop and extends from the groove base radially relative to the longitudinal axis and at a predetermined height.