All-Plastic Press Pump Spring Structure for Clean Recycling
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Solution Overview
Problem
Existing press pumps for liquid products require manual removal of metal springs, which is time-consuming, laborious, and can contaminate the liquid due to rust, leading to low production efficiency and environmental concerns.
Innovation Solution
An all-plastic combined press pump with a plastic spring and a Z-shaped structure, comprising a first supporting part, a second supporting part, and elastic connecting parts, which are annular and circular ring sheet-like, ensuring resilience and ease of recycling and remolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal spring is used in the press pump, then the resilience and resetting function is achieved, but the production efficiency is reduced due to manual disassembly requirements and the risk of liquid contamination from rust
Solution Approach 1:
The metal spring is extracted and replaced with a plastic spring. The patent removes the problematic metal component entirely and substitutes it with a plastic alternative that provides the same elastic resetting function without causing rust or requiring manual disassembly during recycling, thereby improving both reliability and productivity
Solution Approach 2:
The patent adopts a plastic spring that can be easily discarded and replaced during recycling operations. The plastic spring is designed to be simple and inexpensive, allowing rapid replacement without complex disassembly procedures, thus significantly improving production efficiency in recycling operations
2Reliability
If a metal spring is used in the press pump, then the resetting function is achieved, but the liquid may be contaminated by rust from the metal spring
Solution Approach 1:
The metal spring causing rust contamination is extracted and replaced with a plastic spring. This substitution eliminates the source of rust while maintaining the essential elastic resetting function, thereby preventing liquid contamination without sacrificing reliability
Solution Approach 2:
The patent uses a plastic spring made of the same or similar plastic material as other pump components. This homogeneity in material composition ensures chemical compatibility with the liquid products, preventing contamination while maintaining the resetting function through uniform material properties
3Ease of manufacture
If manual disassembly is required to remove the metal spring for recycling, then the spring can be separated, but the process becomes time-consuming and laborious
Solution Approach 1:
The plastic spring is designed as a disposable component that can be rapidly removed and replaced during recycling. Its simple construction and material properties allow for quick extraction without complex tools or procedures, dramatically reducing disassembly time and labor requirements
Solution Approach 2:
The patent changes the material parameter from metal to plastic, which fundamentally alters the recycling process. Plastic springs can be separated more easily through simple mechanical means or even thermal methods, reducing the time and complexity of the recycling operation compared to metal spring removal
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 allows for efficient recycling and remolding without disassembly, maintaining resilience and avoiding contamination, thus enhancing production efficiency and environmental friendliness.
Implementation Method 1
a plastic spring 7 for elastically pressing the press head 6 to drive the pumping assembly 5 to reset upwards
Data Source
AI summary
An all-plastic combined press pump includes a lock bottle, a pump body and a locking cap capable of fixing the pump body on the lock bottle. A liquid storage chamber, a communication port communicated with the liquid storage chamber, a one-way valve, and a pumping assembly slidable up and down are disposed in the pump body. A press head for driving the pumping assembly to move downwards is disposed at an upper end of the pumping assembly. A plastic spring for elastically pressing the press head to drive the pumping assembly to reset upwards to enable negative pressure in the liquid storage chamber to be generated so as to open the one-way valve to suck the liquid into the liquid storage chamber is disposed between the locking cap and the press head.