All-Plastic Liquid Dispenser With Modular Pump Frame
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Solution Overview
Problem
Existing liquid dispensers suffer from contamination of the pump core due to long-term contact with metal components, which fails to meet international recycling standards and poses a risk to human health.
Innovation Solution
An all-plastic liquid dispenser design featuring a modular structure with a hollow pump frame, elastomer pump core, and sealing rings, allowing for controlled liquid discharge and air supplementation, ensuring sterility and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal spring is used in the pump core, then the mechanical structure provides reliable pumping action, but the liquid becomes contaminated after long-term contact with the metal spring
Solution Approach 1:
The metal spring is completely extracted from the pump core structure. The pump core is redesigned to eliminate the metal spring component that causes liquid contamination, while maintaining the pumping function through an alternative mechanical design that uses plastic components only.
Solution Approach 2:
A plastic intermediary structure is introduced between the user's finger and the liquid. The pump core uses a plastic diaphragm or membrane that transmits the pressing force to move the liquid, preventing direct contact between the liquid and any metal components while maintaining mechanical reliability.
2Ease of manufacture
If the dispenser uses a non-modular integrated structure, then the manufacturing is simpler, but the operational flexibility and ease of cleaning are reduced
Solution Approach 1:
The dispenser is divided into separable modules: the bottle body, the pump core, and the cap assembly can be detached from each other. This segmentation allows each component to be manufactured separately using optimized processes while enabling easy disassembly for cleaning and maintenance, thus improving operational flexibility without significantly complicating manufacturing.
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 all-plastic design prevents contamination, meets international recycling standards, and ensures the sterility of the liquid, enhancing operational flexibility and safety.
Implementation Method 1
an elastomer pump core is disposed on the top of the connecting cover, the bottom of the elastomer pump core extends to the inner cavity of the connecting cover so as to be rotatably connected thereto, the bottom of the elastomer pump core abuts on the press cover
Implementation Method 2
an upper sealing ring and a lower sealing ring are disposed on the top of the elastomer pump core
Data Source
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AI summary
The present application relates to the technical field of dispensers and discloses an all-plastic liquid dispenser, comprising a large ring, a connecting cover, and a hollow pump frame, wherein the pump frame is movably clamped to the interior of the large ring, the top of the pump frame extends to the outer side of the top of the large circle, a bottom protruding portion of the connecting cover extends into a top groove of the pump frame so as to be movably clamped thereto, a first air outlet is provided on both sides of the bottom of the connecting cover connected to the pump frame, and a second air outlet in communication with the first air outlet is provided to penetrate through the pump frame. In the present application, a structural improvement is made to modularize the connecting cover, the pump frame, and the elastomer pump core, and the first air outlet, the second air outlet, the first liquid outlet, and the second liquid outlet can be opened and closed by rotating the connecting cover to change a position relationship between the connecting cover and the pump frame, so as to implement functions of liquid discharge sealing and air supplementation. In addition, in the present application, the structure is simple, the operation is easy, and compared with the existing integrated structure, this structure can significantly improve the practical flexibility.