Side Push Button Lid With Push-Rod Sealing for One-Handed Drinking

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Solution Overview

Problem

Existing cup lids require unscrewing, which is inconvenient and poses safety hazards, especially for drivers who need to drink while operating a vehicle.

Innovation Solution

A side push button lid design featuring a threaded body, hold-down piece, sealing seat, upper lid body, and push rod mechanism with a sealing valve that allows for one-handed operation by pressing a button to open the water outlet.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the cup lid uses a threaded unscrewing design, then the sealing reliability is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improvesealing reliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The lid is divided into multiple functional components: a button assembly for operation, a push rod mechanism for force transmission, a sealing valve for liquid control, and a threaded body for secure attachment. This segmentation allows the sealing function to be independent from the opening/closing operation, enabling one-handed button pressing while maintaining reliable threaded sealing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The push rod acts as an intermediary mechanism that translates the small linear motion of the button into the larger motion required to move the sealing valve. This intermediary mechanism amplifies the user's input force, making operation easier while maintaining secure sealing when closed.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the cup lid requires unscrewing to drink, then the sealing reliability is improved, but the loss of time increases

Engineering Contradiction:
Improvesealing reliabilityVSAvoidloss of time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The sealing valve is pre-positioned in the closed state by the spring, requiring only a brief button press to temporarily open for drinking. This preliminary sealing state eliminates the time-consuming unscrewing operation while maintaining reliable sealing during non-drinking periods.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The lid transitions from a static threaded connection to a dynamic system where the sealing valve can quickly open and close in response to button pressure. This dynamic sealing mechanism allows rapid access to the beverage without compromising the overall sealing integrity of the lid assembly.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the cup lid uses a simple cap design, then the ease of operation is improved, but the sealing reliability deteriorates

Engineering Contradiction:
Improveease of operationVSAvoidsealing reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The design merges two sealing mechanisms: the threaded body provides primary sealing through screw attachment to the cup, while the sealing valve provides secondary sealing at the water outlet. This combination of sealing methods ensures reliable liquid containment while maintaining simple one-handed button operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spring automatically returns the sealing valve to the closed position after button release, and the threaded body automatically secures the lid to the cup. These self-service features maintain reliable sealing without requiring additional user actions or complex operating procedures.

Inventive Principle:
Principle #25Self-service

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

Enables simple, one-handed drinking without the need to unscrew the lid, enhancing user convenience and safety by allowing beverage access without compromising vehicle operation.

Implementation Method 1

a spring is sleeved on the front section of the drive rod; the outside of the button mounting hole is provided with a counter bore; one end of the spring abuts against the step face of the counter bore; and the other end thereof abuts against the step surface whereby the drive rod is divided into a front section and a rear section

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a seal valve is mounted on the sealing valve mounting plate; the upper end of the seal valve abuts against the water outlet of the upper lid plate

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 3

one end of the push rod is connected with a sealing valve mounting plate integrally through a supporter; a button is connected at the other end of the push rod

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS9955808B2Side push button lid
Publication Date: 2018.05.01 ZHEJIANG YONGHENG HOUSEHOLD
  • US9955808B2 patent drawing
  • US9955808B2 patent drawing

AI summary

The utility model belongs to cups, particularly a new side push button lid. The cup lid comprises a threaded body, a hold-down piece, a sealing seat, an upper lid body, an upper lid plate, a push rod, a sealing valve, and a button connected successively from bottom up. The middle area of the lower end of the push rod is movably connected with the holder on the hold-down piece; one end of the push rod is connected with a sealing valve in a snap-fit manner; the other end is connected with a drive rod of the button; and the upper end of the seal valve abuts the water outlet of the upper lid plate. The pressed button drives the drive rod to apply a pushing force to the push rod to force the sealing valve to move downward, the sealing valve is removed from the water outlet and water is supplied.