All-Plastic Spray Gun With Plastic Spring for Corrosion Control
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Solution Overview
Problem
Existing spray guns for bottles are not environmentally friendly due to the use of metal springs and glass beads, which can corrode and cause injury, and their assembly is complex and tedious.
Innovation Solution
An all-plastic spray gun design featuring a plastic spring, glass bead, and a simple assembly structure, including a housing, gun body, trigger, piston, and water division head, which allows for continuous pressure without metal components and easy disassembly for recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal spring and glass bead are used in spray gun, then reliable power supply and liquid division are achieved, but corrosion and injury risks occur reducing environmental friendliness and health safety
Solution Approach 1:
The patent removes the metal spring and glass bead from the spray gun structure, extracting the harmful components that cause corrosion and injury risks. This is achieved by replacing the metal spring with a plastic spring and eliminating the glass bead water division device, thereby eliminating the sources of corrosion while maintaining the essential functions through alternative materials and designs.
Solution Approach 2:
The patent changes the material parameters of the spring from metal to plastic, fundamentally altering the chemical properties to resist corrosion. The plastic spring maintains the elastic deformation capability needed for power supply while being chemically inert to liquid corrosion, thus resolving the contradiction between reliability and harmful factors.
2Reliability
If conventional metal spring and glass bead components are used, then functional performance is maintained, but assembly process becomes complex and tedious
Solution Approach 1:
The patent merges multiple functions into fewer components. The plastic spring not only provides power supply but also integrates with the plastic piston and other plastic components to form a unified assembly system. This reduction in component variety and number simplifies the assembly process while maintaining functional performance through the synergistic design of integrated plastic components.
3Ease of manufacture
If all-plastic structure is adopted, then environmental friendliness and recyclability are improved, but continuous pressure function requires complex assembly of multiple independent parts
Solution Approach 1:
The patent segments the continuous pressure function into coordinated actions of multiple plastic components: the plastic piston for pressure generation, the plastic spring for elastic recovery, and the plastic valve for fluid control. Each segment is independently designed but works in concert to achieve the continuous pressure function, allowing for simplified manufacturing and assembly of recyclable plastic parts while maintaining the required functionality.
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 avoids corrosion and injury risks, simplifies assembly, and enables easy recycling while maintaining high-pressure mist generation and safety through the use of a plastic spring and glass bead.
Implementation Method 1
an upper end of the negative pressure column is provided with a plastic spring, the plastic spring is sleeved outside the gun body
Implementation Method 2
a glass bead used as a water division device makes the liquid corrode the above two accessories
Implementation Method 3
a suction tube sucks the water
Data Source
AI summary
Disclosed is an all-plastic spray gun, including a housing. The housing is connected to a gun body, a front end of the gun body is connected to a header cap, the header cap is connected to a water division head body, the water division head body is inserted into the gun body, the gun body is hinged to a trigger, the trigger is connected to a piston, the piston is slidably connected to a negative pressure column of the gun body, an upper end of the negative pressure column is provided with a plastic spring, the plastic spring is sleeved outside the gun body, a bottom end of the gun body is connected to a blank cap, the blank cap is connected to a large ring, a perforative suction tube is inserted into the blank cap.