Double Button Cream Bottle Closure Mechanism
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Solution Overview
Problem
Existing cream bottles face issues with cumbersome cap closure, accidental opening during carrying, and safety concerns for children, leading to cream exposure and waste.
Innovation Solution
A double button cream bottle design featuring an inner ring with an abutment ring and two opposing buttons connected by an elastic ring, which snaps into a recess on the bottle body, allowing for secure closure and easy separation using the elastic force, preventing accidental openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw connection is used for bottle cap closure, then the connection strength is improved, but the ease of operation deteriorates due to cumbersome closing and opening
Solution Approach 1:
The closure mechanism is segmented into multiple independent components: a bottle cap with an abutment ring, a bottle body with a flange, and an elastic ring. This segmentation allows the connection to be simplified into a snap-fit action rather than requiring threaded rotation, improving ease of operation while maintaining connection strength through the elastic retention mechanism.
Solution Approach 2:
The traditional screw thread mechanical system is replaced with an elastic retention system. The elastic ring provides continuous radial force to maintain the connection between the flange and abutment ring, substituting the need for threaded engagement while achieving both strong connection and easy operation through simple radial insertion and release movements.
2Ease of operation
If single button plug connection is used, then the ease of operation is improved, but the reliability deteriorates due to accidental opening during carrying
Solution Approach 1:
The closure mechanism uses asymmetric geometry where the elastic ring is positioned to engage with the flange in a specific orientation. This asymmetric design ensures that the elastic ring maintains continuous radial force on the flange, creating a reliable connection that resists accidental opening while still allowing intentional opening when buttons are pressed.
Solution Approach 2:
The elastic ring provides dynamic adaptation to the connection between the bottle cap and bottle body. It continuously adjusts its radial force to maintain secure engagement during carrying and movement, while the button mechanism provides controlled dynamic release when activated, balancing reliability and ease of opening.
3Device complexity
If single button mechanism is used, then the device complexity is reduced, but the safety deteriorates due to child access and improper use
Solution Approach 1:
The dual-button design uses asymmetric positioning of the two buttons on opposite sides of the bottle cap. This creates a mechanical requirement for simultaneous bilateral action to release the closure, which is naturally difficult for children to achieve, thereby improving safety while maintaining relatively simple overall mechanism design.
Solution Approach 2:
The elastic ring is pre-loaded and positioned to engage with the flange before use, creating a pre-established secure connection. This preliminary action ensures that the closure is automatically secured upon assembly, preventing accidental opening or child access without requiring complex additional safety 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 double button mechanism ensures secure closure and easy opening, preventing accidental openings during carrying and child access, thus minimizing waste and enhancing user safety and convenience.
Implementation Method 1
an elastic ring connecting the two buttons; when the two buttons are simultaneously pressed, the elastic ring is pressed and deformed and disengages from the recess
Implementation Method 2
the bottle body is separated from the bottle cap by the elastic force of the elastic piece
Data Source
Figure 1
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Figure 3
AI summary
Disclose is a double button cream bottle, which comprises a bottle body and a bottle cap for closing the bottle body, wherein an inner ring of the bottle cap is provided with an abutment ring, an upper limit of the abutment ring is provided with a button ring, and the button ring comprises two buttons disposed opposite each other and an elastic ring connecting the two buttons; an upper portion of the bottle body is convexly and radially provided with a flange, a recess is formed at a lower end of the flange, and when the bottle body is inserted into the bottle cap, the elastic ring is snapped in the recess and limits the flange between an inner end of the bottle cap and the elastic ring; an upper end of the bottle body is covered with a cover plate, the cover plate is provided with an elastic piece upwardly tilted, and when it is closed, the elastic piece is limited between the inner end of the bottle cap and the cover plate; a side wall of the bottle cap is provided with button grooves corresponding to the buttons, and when the two buttons are simultaneously pressed, the elastic ring is pressed and deformed and disengages from the recess, so that the flange disengages from the limiting of the elastic ring; and the bottle body is separated from the bottle cap by the elastic force of the elastic piece, and through the above arrangement, the bottle body and the bottle cap can disengage from and be closed to each other without accidental opening.