Liquid Dispensing Apparatus Rear Refill Lid Mechanism
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Solution Overview
Problem
Existing liquid dispensing apparatuses, such as water guns, face challenges in quick and convenient replenishment of pressurized liquid, often requiring manual pouring through a small opening and necessitating both hands for operation.
Innovation Solution
The apparatus features a chamber with a pivotally movable lid and an opening of the same size as the chamber's cross-section, allowing for easy filling by moving the gun through a liquid source with the back leading the front, facilitating rapid replenishment without the need for manual pouring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a small hole or opening is used for replenishing liquid, then the apparatus structure is simple, but the replenishing speed is slow and manual pouring is required
Solution Approach 1:
The opening is segmented into two functional parts: a large opening for rapid liquid intake and a smaller dispensing outlet for controlled liquid release. This segmentation allows the apparatus to achieve both fast replenishing and controlled dispensing without requiring complex valve mechanisms
Solution Approach 2:
The lid is designed to be pivotally movable between closed and open positions, allowing dynamic control of the large opening. When open, the full cross-sectional area is available for rapid filling; when closed, it seals completely for dispensing operation
2Ease of operation
If the refilling opening and dispensing outlet are both located on the front side, then the apparatus structure is compact, but the user must change direction after replenishing which consumes time and may require both hands
Solution Approach 1:
The refilling opening is inverted in location compared to conventional designs - it is positioned on the rear side of the apparatus while the dispensing outlet remains on the front side. This inversion allows the user to fill the apparatus by pouring from behind while maintaining the same forward-facing dispensing direction, eliminating the need to change orientation
Solution Approach 2:
The opening is positioned at the rear end region of the chamber housing, creating spatial separation between the filling operation (rear) and dispensing operation (front). This dimensional arrangement allows both operations to occur simultaneously in different directions without interfering with each other
3Productivity
If a magnetic force valve is used to control the refilling opening, then the opening can be automatically opened and closed, but the device complexity increases and the replenishing speed is still limited
Solution Approach 1:
The complex magnetic valve mechanism is completely removed from the design. Instead, a simple pivotally movable lid is used that can be manually opened and closed. The lid itself becomes the control mechanism, eliminating the need for separate valve components while maintaining functional control over the opening
Solution Approach 2:
The large opening area, equal to the chamber's cross-section, allows liquid to flow in rapidly without requiring active valve control during filling. The user simply opens the lid and pours; the geometry of the opening itself enables high-speed replenishing passively
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
This design enables quick and efficient replenishment of the liquid chamber, allowing users to resume dispensing liquid rapidly, especially in recreational settings like water gun fights, and can be operated using one hand.
Implementation Method 1
Some also utilise the pressure difference between the reservoir of liquid in the gun and the pressure of the ambient air in order to activate. By creating pressure in the reservoir water can stream out under pressure
Data Source
AI summary
A container comprising concavity in which a container neck is situated, inset from the top of the container, such that a pump assembly may be fastened to said inset neck resulting in a more discreet form, a container design that is less overpowered by protruding a protruding pump, and a more volume-efficient assembly. Additionally, space between the pump assembly and a peripheral wall of said concavity is reserved such that an annular wall of a pump head may move within said space when the pump head is pressed to dispense the contents of the container.