Thermos Cup Lid with Rotating Plug Handle for Spill Prevention
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Solution Overview
Problem
Existing beverage cups with heat insulation suffer from temperature loss and contamination issues due to frequent lid opening, and the lid can be cumbersome and prone to loss when not securely attached, posing safety risks during carrying.
Innovation Solution
A thermos cup design featuring a double-layer insulation structure with a thread-connected lid, a semicircular ring handle, and a semicircular ring lid plug that allows drinking without opening the lid, providing secure sealing and improved heat retention while allowing easy handling and safe carrying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lid is opened frequently to drink beverages, then the user can consume the beverage, but the heat insulation effect deteriorates and temperature drops quickly
Solution Approach 1:
The lid is divided into separate functional components: a removable plug for drinking and a retaining cover that stays on the cup. This allows the user to open only the minimal necessary portion (the plug) while maintaining the overall sealed structure, thus preserving heat insulation while enabling beverage consumption.
Solution Approach 2:
A tether connecting the plug to the cover acts as an intermediary element. This tether allows the plug to be removed for drinking while preventing complete separation, maintaining the sealed environment and heat insulation while still permitting beverage access.
2Ease of operation
If the lid is opened frequently, then the user can drink beverages, but dust permeates into the cup causing contamination
Solution Approach 1:
The lid structure separates the drinking function (plug) from the protective function (cover). The cover remains on the cup throughout use, maintaining the sealed environment and preventing dust contamination, while the plug can be independently removed for drinking.
Solution Approach 2:
The tether serves as an intermediary that connects the removable plug to the retained cover, allowing the plug to be taken off for drinking while the cover remains in place to protect against dust and contamination.
3Ease of operation
If a snap-type handle is used for easy carrying, then the user can hold the cup conveniently, but the handle may fall off causing safety risks
Solution Approach 1:
The handle is merged with the lid structure through a threaded connection mechanism. The handle threads engage with corresponding threads in the lid, creating a secure, integrated connection that eliminates the risk of the handle detaching during carrying while maintaining ease of grip.
4Reliability
If the cup body and lid are connected with a tether for security, then the lid is less likely to be lost, but the appearance becomes less elegant and the tether is easy to damage
Solution Approach 1:
The retention mechanism is merged into the lid structure itself through integrated threaded connections. The handle and plug both connect through threads that are part of the lid's structural design, eliminating the need for external tethers or separate retention components, thus maintaining elegance while ensuring security.
5Ease of manufacture
If a plastic fitting is used to connect the cup body with the lid, then the assembly is simple, but the fitting does not appear harmonious and is not integral to the cup
Solution Approach 1:
The connection mechanism is merged into the lid structure through integrated threaded features. The threads are formed as part of the lid itself rather than being separate plastic fittings, creating a harmonious, integral appearance while maintaining simple assembly through the threaded connection system.
Solution Approach 2:
The connection structure uses the same material and design language as the rest of the lid. The threaded features are integrated into the lid's homogeneous structure, eliminating visual discontinuities and creating a unified, elegant appearance while maintaining manufacturing simplicity.
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 solution ensures continuous heat insulation, prevents spills, and enhances user safety and convenience by allowing beverage consumption without opening the lid, while the secure handle and lid connection prevent accidental loss and scalding.
Implementation Method 1
double-layer heat insulation cup body
Implementation Method 2
a sealing ring which is coupled to and sealed with an upper rim of the cup body
Implementation Method 3
The cup body and the cup lid are connected via thread connection
Data Source
AI summary
A portable beverage container and lid has a connecting ring fastened to a rim of the container. A lid has external threads mating with internal threads on the connecting ring. The lid has a top with a drink opening in fluid communication with the container. First and second handles are rotatably connected to opposing sides of the lid to rotate about a common axis, but are offset from that axis. One handle has a plug located and shaped to fit within the drink opening. One or both handles can be rotated upwards to abut each other and carry the container.