Digital Tire Valve Torque Sensor with Alarm Feedback
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Solution Overview
Problem
Conventional tire valve stem assembling/disassembling tools lack precise torque measurement and control, leading to potential air leaks from under-tightening or excessive abrasion and breaking of threads due to over-tightening, necessitating frequent replacements.
Innovation Solution
A digital measuring device with a housing, valve core tightening torque sensor, digital measurement circuit, and power supply unit, which includes a measuring head for torque measurement, analog-digital conversion, microprocessor for computation and display, and alarm systems to ensure precise torque application, along with tire pressure and tread depth measurement capabilities and wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional assembling/disassembling tools are used to mount/dismount valve cores, then the operation can be performed, but the torque cannot be precisely controlled leading to under-tightening or over-tightening
Solution Approach 1:
The patent replaces conventional mechanical torque estimation methods with electronic torque sensors and digital measurement circuits that precisely measure and display actual torque values, eliminating the imprecision of manual torque application
Solution Approach 2:
The patent implements real-time feedback through digital display of torque values and alarm functions that alert users when torque exceeds or falls below predetermined ranges, enabling precise torque control during valve core mounting
2Ease of operation
If insufficient torque is applied to mount the valve core, then the mounting operation is easier, but air leaking occurs due to under-tightening
Solution Approach 1:
The alarm function provides feedback when torque falls below the predetermined minimum range, alerting users to apply sufficient torque to prevent air leaking while maintaining ease of operation through clear guidance
3Reliability
If excessive torque is applied to mount the valve core, then the valve core is securely fixed, but thread abrasion or breaking occurs
Solution Approach 1:
The alarm function provides immediate feedback when torque exceeds the predetermined maximum range, preventing excessive torque application that would damage threads while ensuring secure valve core fixation within safe limits
Solution Approach 2:
The predetermined torque ranges are established in advance to prevent harmful effects, creating preliminary constraints that stop excessive torque before thread damage can occur
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides precise torque control, preventing air leaks and thread damage, ensuring secure valve core mounting and extending the lifespan of tire valve stems by accurately measuring and displaying torque, pressure, and tread depth with alarm functions and wireless data transmission.
Implementation Method 1
at least one valve core tightening torque measuring sensor, which is arranged in the housing and coupled to the measuring head to measure and detect a detection signal indicating an output of a tire valve core tightening torque
Data Source
AI summary
A digital measuring device includes a housing, at least one measuring head, at least one measuring sensor, at least one digital measurement circuit, and at least one power supply unit. The measuring head is arranged outside the housing. The measuring head functions to carry out an operation of tightening a tire valve core, connecting a valve stem, or measuring tire tread. The measuring sensor is arranged inside the housing and coupled to the measuring head to measure and detect a detection signal indicating an output of a tire valve core tightening torque, a tire pressure, or a tire tread depth. The digital measurement circuit is connected to the measuring sensor for computing, displaying, and issuing an alarm regarding the tightening torque that the measuring head applies to tighten a tire valve core, the tire pressure, or the tire tread depth. The power supply unit supplies a desired direct-current working power to the measuring sensor and the digital measurement circuit. As such, a device that is capable of digital measurement, displaying, and issuing an alarm regarding the tire valve core tightening torque, the tire pressure, or the tire tread depth is formed.