Automotive Tensioning Assembly With Rivet-Nut Quick Mounting
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Solution Overview
Problem
Existing safety tensioning devices for automobiles face issues with inconvenient operation due to the need for screws and nuts in limited spaces, leading to low mounting efficiency, stability, and bearing capacity, especially in special scenarios like pickup trailers.
Innovation Solution
A fast-connecting safety tensioning device with a base assembly featuring threaded holes or rivet nuts on its bottom for quick connection, allowing screws to secure the device to vehicles, and a rolling assembly for automatic band winding, enhancing stability and bearing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pair of screw and nut is used to connect the safety tensioning device to the vehicle, then the device can be fixed in place, but the operation becomes difficult and mounting efficiency is low due to limited space and difficulty in tightening screws with general tools
Solution Approach 1:
The patent changes the connection parameter from standard screw-nut assembly to integrated rivet nut structure. The rivet nut is directly formed on the base bottom surface, eliminating the need for separate nuts and enabling tool-free or simplified tool-based installation, thus resolving the contradiction between connection reliability and mounting convenience.
Solution Approach 2:
The connection structure is segmented into the base assembly with integrated rivet nuts, separating the mounting function from the tensioning function. This allows the base to be independently optimized for easy installation while the main body handles the tensioning operation, resolving the operational difficulty caused by space constraints.
2Reliability
If a pair of screw and nut is used to connect the safety tensioning device, then the device can be fixed in place, but time and effort are wasted due to low mounting efficiency
Solution Approach 1:
The rivet nuts are pre-integrated into the base structure during manufacturing, eliminating the need for separate installation steps. This preliminary integration of connection elements into the base assembly enables rapid mounting by simply inserting and securing the base to the vehicle surface, dramatically improving mounting efficiency while maintaining connection reliability.
3Ease of operation
If only one end of the tensioning device is fixed to the vehicle, then the device is easy to install, but the stability and bearing capacity are low, particularly in special stress angles
Solution Approach 1:
The base is designed with an asymmetric geometry featuring a bottom surface for attachment and side surfaces for structural support. This asymmetric design allows the base to provide both simple single-point installation and enhanced stability through its geometric form, resolving the contradiction between installation simplicity and bearing capacity.
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 enables quick, stable, and reliable connection to vehicle surfaces, improving mounting efficiency and stability, and allowing for automatic band winding without disassembly.
Implementation Method 1
The bands are rolled up automatically by energy stored by using a volute spiral spring.
Implementation Method 2
The main body of the safety tensioning device is designed on the basis of a working prince of an irreversible ratchet mechanism.
Implementation Method 3
the base has one or more threaded holes on the bottom of the base for one or more screws to pass through so as to mount the fast-connecting safety tensioning device onto an object to be fixed in place
Data Source
AI summary
A fast-connecting safety tensioning device for automobiles comprises a main body which consists of a base assembly, a handle assembly and a rolling assembly; and a band. The base assembly comprises a base, the rolling assembly comprises a spindle for mounting the band, the spindle is mounted on the base. The base has one or more threaded holes on a bottom of the base for one or more screws to pass through so as to quickly mount the fast-connecting safety tensioning device onto an object to be fixed in place (for example, a sidewall B of the pickup truck, the trailer trestle A, the car deck, etc.). One or more rivet nuts each having one threaded hole are integrally formed on the bottom of the base. The connection stability and the bearing capacity are greatly improved. Technical problems of the existing tensioning device can be effectively solved.