Valve Stem Clamping Surface for Tire Pressure Detector Assembly
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Solution Overview
Problem
Conventional tire pressure detector valve stems require specialized tools for assembly and disassembly, which are often difficult to find and can damage the fixing hole during mounting, making the process cumbersome and prone to errors.
Innovation Solution
A tire pressure detector and valve stem assembly featuring a valve stem with an outer and inner section, where the inner section has a domical distal end, a tangentially formed flat clamping surface on the sidewall, allowing for secure clamping with a regular tool like a clamp or spanner, eliminating the need for specialized tools and reducing the risk of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixing hole with specialized service tool is used on the valve stem, then the valve stem can be securely mounted on the rim, but the assembly process becomes complex and requires difficult-to-find specialized tools
Solution Approach 1:
The valve stem inner section is designed with a clamping surface that can be operated with common tools like spanners or clamps, making the assembly process universal and accessible without requiring specialized service tools. This allows any technician or driver to perform the assembly using standard automotive tools.
Solution Approach 2:
The invention extracts the requirement for specialized service tools from the assembly process by replacing the fixing hole design with a clamping surface design that works with common tools, thereby eliminating the dependency on difficult-to-find specialized equipment while maintaining secure mounting capability.
2Ease of manufacture
If a fixing hole is used on the valve stem, then the valve stem can be mounted on the rim, but the fixing hole is easily damaged during the mounting process
Solution Approach 1:
The invention converts the potential harm of tool-induced damage into a benefit by designing a clamping surface specifically intended to be engaged by tools. The clamping surface is engineered to distribute forces evenly and prevent the damage that occurs with fixing holes, turning the tool interaction from a harmful factor into a controlled and beneficial mounting mechanism.
Solution Approach 2:
The clamping surface is designed with specific local qualities including flat geometry and appropriate surface area to distribute mounting forces evenly. This local structural optimization prevents the concentration of stress that causes fixing hole damage, while maintaining the necessary mounting capability at that specific location on the valve stem inner section.
3Reliability
If a specialized service tool is required for valve stem assembly, then secure mounting is achieved, but the process becomes time-consuming and requires trips to specialized service centers
Solution Approach 1:
By designing the clamping surface to work with common automotive tools that are universally available in any garage or service center, the invention eliminates the need for trips to specialized service centers. Any technician with standard tools can perform the assembly, dramatically reducing the time loss associated with locating specialized equipment.
Solution Approach 2:
The valve stem design enables self-service assembly by any technician using common tools, without requiring specialized service center equipment. The clamping surface design allows the valve stem to be mounted and dismounted using standard spanners or clamps that are readily available, empowering users to perform the assembly themselves without external specialized resources.
Data Source
AI summary
The tire pressure detector and valve stem assembly has a valve stem, a wireless pressure detector and a fastener. The valve stem has an outer section and an inner section. The inner section is integrally and coaxially formed on the outer section and has a distal end, an outlet hole, a sidewall and at least one clamping surface. The at least one clamping surface is flat and is tangentially formed on the sidewall. To assemble, only a regular tool such as a clamp or a spanner is necessary to clamp the inner section on the clamping surface when mounting or dismounting the valve stem onto or from a rim.