Inflating Valve Threaded Locking Structure for Anti-Loosening Sealing
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Solution Overview
Problem
Existing methods for connecting inflating valves and bases in automobile tires face issues such as complex processing, high parameter requirements, difficult defect detection, low reliability, and loose connections due to glue failure in threaded connections.
Innovation Solution
A threaded fixing structure with a sealing ring, fixed protrusion portion, and connecting column that ensures secure threaded connections by preventing relative rotation and using a sealing groove and vent hole for improved sealing and communication, along with a fixing pin for anti-loosening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding mode is used to connect the inflating valve and base, then the connection strength is improved, but the processing complexity increases, parameter requirements increase, defect detection becomes difficult, and reliability decreases
Solution Approach 1:
The patent replaces the welding process (thermal/mechanical system) with a threaded mechanical connection system. The base and inflating valve are connected through threads on the connecting column, eliminating the need for welding equipment, complex parameter control, and defect detection procedures while maintaining connection strength through proper threading design.
2Stability of the object's composition
If glue is used in threaded connection to prevent loosening, then the anti-loosening effect is improved, but the sealing property becomes difficult to ensure due to glue failure in certain environments
Solution Approach 1:
The patent extracts and removes the glue element from the connection system. Instead of relying on glue for both anti-loosening and sealing functions, the design uses purely mechanical means: the fixed protrusion portion engages with a corresponding groove in the inflating valve to prevent loosening, while the sealing ring provides dedicated sealing without relying on adhesive properties.
Solution Approach 2:
The patent segments the functions of anti-loosening and sealing into separate structural elements. The fixed protrusion portion handles the anti-loosening function through mechanical engagement, while the sealing ring handles the sealing function through its material properties and geometric fit, allowing each component to optimize its specific function without the compromises of using glue for both purposes.
3Ease of manufacture
If conventional threaded connection without additional fixing structures is used, then the ease of manufacture is improved, but the connection reliability decreases due to loosening and separation
Solution Approach 1:
The patent implements a self-locking mechanism where the fixed protrusion portion on the base automatically engages with a corresponding groove in the inflating valve during the threading process. This self-service anti-loosening feature eliminates the need for additional fixing operations or components, maintaining ease of manufacture while significantly improving connection reliability through automatic mechanical locking.
Data Source
AI summary
A threaded fixing structure includes an inflating valve, a base and a sealing ring, the inflating valve is in threaded connection with the base, the sealing ring is arranged between the inflating valve and the base, after the threaded connection between the inflating valve and the base is completed, a fixed protrusion portion is formed on the surface, attached to the inflating valve, of the base by punching, and the fixed protrusion portion is sunken into the inflating valve to limit the relative rotation between the base and the inflating valve. Accordingly, the inflating valve and the base are limited and locked with each other through a fixing part, so that the relative rotation between the inflating valve and the base is avoided, the threaded connection between the inflating valve and the base is prevented from loosening.