All-Plastic Spray Device Eliminating Metal Spring Corrosion
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Solution Overview
Problem
Existing micro sprayers rely on metal springs that corrode over time, leading to pollution and health risks due to heavy metal contamination, and are not environmentally friendly, requiring disassembly and classification for recycling.
Innovation Solution
An all-plastic spray device using environmentally friendly plastic springs and components, eliminating the need for metal and facilitating easy recycling, with a two-stage elastic mechanism for improved performance and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal springs are used in the pump body, then the spray device can achieve reliable elastic function and structural stability, but the metal springs will corrode over time due to contact with liquid, causing pollution and health risks
Solution Approach 1:
The invention extracts and removes the metal spring component from the pump body, replacing it with a plastic elastic element. This extraction eliminates the source of corrosion and heavy metal contamination while maintaining the necessary elastic function through an alternative material (plastic) that is resistant to liquid contact and environmentally safe.
Solution Approach 2:
The invention changes the material parameter of the elastic element from metal to plastic. This material substitution fundamentally alters the chemical properties, making the elastic element resistant to corrosion and eliminating heavy metal content, thereby resolving the harmful effects while preserving the mechanical elastic function needed for pump operation.
2Force
If metal springs are used in the pump body, then the spray device can provide sufficient elastic force for pumping, but the heavy metal content may exceed standards and pollute the packaged contents
Solution Approach 1:
The invention extracts the metal spring that generates elastic force and replaces it with a plastic elastic element. This removal eliminates the heavy metal source that causes pollution, while the plastic element is designed to provide comparable or sufficient elastic force for the pumping operation through optimized geometry and material properties.
Solution Approach 2:
The invention uses plastic material with specific elastic properties to replace metal. The plastic elastic element is designed with appropriate structural features (such as coil geometry or leaf spring configuration) to generate the necessary elastic force, achieving a composite solution that combines environmental safety with mechanical performance.
3Duration of action of stationary object
If metal springs are used in the pump body, then the spray device can achieve durable elastic function, but the corroded metal spring easily causes pollution to the whole package contents
Solution Approach 1:
The invention extracts and removes the metal spring component that is prone to corrosion over time. By replacing it with a plastic elastic element, the invention eliminates the degradation mechanism (corrosion) that leads to pollution, thereby maintaining service life through a material that is chemically stable and resistant to liquid contact throughout the product's lifespan.
Solution Approach 2:
The invention changes the chemical composition parameter of the elastic element from metal to plastic. This material transformation eliminates the corrosion susceptibility inherent in metal, providing long-term durability without the risk of degradation and pollution to package contents, thus extending the effective service life in a safe manner.
4Reliability
If metal springs are used in the pump body, then the spray device can achieve functional performance, but it requires disassembly and classification for recycling
Solution Approach 1:
The invention merges the elastic element material with the main pump body material, both being plastic. This material unification allows the entire pump assembly to be processed together as a single recyclable unit, eliminating the need for disassembly and classification that would be required if metal springs were present, thereby simplifying recycling while maintaining functional performance.
Solution Approach 2:
The plastic elastic element serves multiple functions: providing elastic force for pumping, resisting corrosion from liquid contact, and enabling easy recycling. By using a universal material (plastic) that fulfills all these requirements, the invention eliminates the need for complex disassembly and classification processes, making the entire device easier to manufacture and recycle.
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 provides a stable, non-toxic, energy-saving, and environmentally friendly solution with enhanced atomization and extended service life, ensuring safety and convenience in daily use without the need for disassembly or classification.
Implementation Method 1
an environmentally friendly cross-arm plastic spring, an environmentally friendly plastic upper spring, an environmentally friendly plastic lower spring
Data Source
AI summary
The invention discloses an all-plastic spray device, comprising a handle, an environmentally friendly cross-arm plastic spring, a positioning seat, a nozzle mechanism, a hexagonal plug, a piston mechanism, an environmentally friendly plastic upper spring, an environmentally friendly plastic lower spring, a plastic ball, and a pump body. The invention adopts the design of two-stage elastic element. Both the environmentally friendly plastic upper spring and the environmentally friendly plastic lower spring are made of plastic materials, which can well replace the metal spring. The two-stage elastic element also has a significant improvement in the pressing feel. In addition to being suitable for conventional liquid use, it is also very suitable for the use of solutions that are prone to corrosion with metal parts. The invention greatly facilitates people's daily use and maintains life, health and safety in people's daily use.