Thermos with locking device for liner
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Solution Overview
Problem
Existing thermos designs with ceramic liners face issues of brittleness and lack of effective safety protection, as well as inadequate locking mechanisms that fail to securely combine the liner with the barrel, leading to potential fractures under external forces.
Innovation Solution
A locking device utilizing a tightening ring with elastic force, combined with a twist-on member and connecting ring featuring a snap tooth and elastic slot, provides a stable and secure locking mechanism by generating a strong reaction force and mechanical snapping action to immobilize the liner within the barrel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a ceramic liner is combined with the barrel by squeezing, then the liner can be securely positioned, but the brittle ceramic material will fracture when subjected to external forces
Solution Approach 1:
A tightening ring is introduced as an intermediary component between the ceramic liner and the barrel. The tightening ring absorbs and distributes external forces, preventing direct transmission of shock waves to the brittle ceramic liner, thereby avoiding fracture while maintaining secure positioning
Solution Approach 2:
The tightening ring changes the mechanical parameters of the system by providing a flexible, elastic interface that can deform under external forces. This allows the system to absorb impact energy through elastic deformation rather than transmitting it directly to the ceramic liner, preventing fracture
2Reliability
If a tightening ring with elastic force is used to lock the liner, then the liner can be securely assembled, but the device complexity increases due to additional components
Solution Approach 1:
The tightening ring utilizes its own elastic properties to automatically lock the liner in place. The elastic deformation of the tightening ring during assembly creates a self-locking mechanism that secures the liner without requiring additional locking components or complex assembly procedures
Solution Approach 2:
The tightening ring exploits elastic parameter changes during assembly - deforming elastically during installation and then recovering to create a secure locking force. This simple elastic parameter change provides reliable locking functionality without adding complex mechanical locking mechanisms
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 locking device ensures the mineral liner is securely positioned and assembled within the thermos, resisting external forces and maintaining stability, while the elastic force and snapping mechanism prevent the liner from falling apart, ensuring robust and reliable operation.
Implementation Method 1
The locking mechanism utilizes primarily a tightening ring with an elastic force, which is clamped between a mineral liner and a barrel by filling
Implementation Method 2
a spinning lead of the inner thread is provided, allowing the push-down inner shoulder to actually push down the tightening ring that the tightening ring can be forced upon actually
Implementation Method 3
a top surface of the tightening ring is a surface of a snapping structure and the push-down inner shoulder of the connecting ring is provided correspondingly with a snap tooth to fix the connecting ring with the spinning end of the barrel by mechanical snapping
Implementation Method 4
The thermos containers are basically based on the adiabatic effect, in order to preserve the temperature of foods or beverages
Data Source
AI summary
The present invention discloses a locking device for replacing a liner in a thermos. The locking device locks and positions a liner stably by a high-pressure assembling force resulted from an elastic effect, after replacing and assembling the liner in a drinking container. A tightening ring with an elastic force is utilized primarily. The tightening ring is clamped between a mineral liner and a barrel by filling, forming a strong elastic reaction force to press and lock the elements, through a spinning action of a connecting ring.