External Tire Inflating Valve With Threaded Sealing Structure
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Solution Overview
Problem
Existing external inflating valves for motor vehicles suffer from chronic tire pressure leakage due to inadequate sealing, and their single-function design makes them inconvenient for inflation and deflation, with poor reliability and complex processing technology.
Innovation Solution
A multifunctional external inflating valve with a side surface connecting part, a sealing ring accommodation groove, and a core sealing ring to achieve effective sealing, combined with a mounting method that disassembles the original tire inflating valve core and connects the external valve using threaded connections, ensuring proper sealing and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the external inflating valve is directly connected to the original tire inflating valve using a push rod structure, then the tire air source can be introduced into the loading part, but the main sealing function of the cone of the original tire inflating valve core cavity is abandoned, causing chronic tire pressure leakage
Solution Approach 1:
The sealing system is segmented into multiple independent sealing elements: the original cone sealing structure of the tire inflating valve, the sealing ring on the push rod, and the sealing structure at the connection interface. This segmentation allows each sealing element to maintain its function independently, preventing the abandonment of the main sealing function while enabling the push rod mechanism to operate.
Solution Approach 2:
A sealing ring is introduced as an intermediary element between the push rod and the external inflating valve body. This sealing ring maintains the sealing function at the connection interface, ensuring that the push rod mechanism does not compromise the overall sealing performance of the system.
2Strength
If the external inflating valve uses a welded connection with loading devices, then the structural integrity is improved, but the processing technology becomes complicated and the reliability is poor
Solution Approach 1:
The welding connection is replaced with a threaded mechanical connection system. The external inflating valve body is provided with threads that engage with corresponding threads on the loading device, eliminating the need for welding operations. This substitution maintains structural integrity through mechanical fastening while significantly simplifying the processing technology and improving reliability through reversible, precise connections.
3Device complexity
If the external inflating valve is designed for single function, then the structure is simplified, but the inflation and deflation operations become inconvenient and the applicability is poor
Solution Approach 1:
The external inflating valve is designed with multi-functionality by incorporating both inflation and deflation capabilities in a single integrated structure. The valve body includes separate pathways and control mechanisms that allow it to perform multiple functions without requiring separate devices, thereby improving convenience and applicability while maintaining reasonable structural simplicity.
4Stability of the object's composition
If the inner spring of the valve core is in a state of extreme compression for a long time, then the valve core remains closed during operation, but the yielding deformation dysfunctions the check valve of the valve core
Solution Approach 1:
A cushioning structure is provided in the valve core assembly to prevent the inner spring from being in a state of extreme compression. The cushioning element absorbs excess compression forces and protects the spring from yielding deformation, thereby maintaining the check valve function and preventing dysfunction while allowing the valve core to remain stable during operation.
Data Source
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AI summary
The present invention provides a multifunctional external inflating valve and a mounting method for a loading device. An inflating valve body of the inflating valve is provided with a three-way through main body, and the main body is through from a side surface by means of a side surface connecting part; the side surface connecting part is used for connecting a loading device; a valve core is arranged in an axial middle hole; a hole cavity is formed in the front portion of the axial middle hole of the main body and used for being connected to an original tire inflating valve; an outer conical surface is arranged on the front portion of the valve core; the front portion, comprising the outer conical surface, of the core protrudes out of the front end of the hole cavity of the main body; and an core conical surface sealing rubber pipe is mounted on the outer conical surface of the core and used for sealing the core and a conical hole sealing surface of a tire inflating valve inner hole cavity. According to the present invention, the problem of an external inflating valve in the past can be avoided, the tire pressure leakage is effectively prevented, the distance between a loading structure and the axis of the inflating valve is closer, and the dynamic balance performance is improved.