Detachable Nozzle and Piston Assembly for Easy Paint Sprayer Cleaning
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Solution Overview
Problem
Conventional handheld paint sprayers face difficulties in cleaning the nozzle and paint flow channel due to hardened paint residues, require skilled operation for precise spraying, and inefficient paint utilization, as well as the need for disassembly for maintenance.
Innovation Solution
A liquid dispensing device with a modular design featuring a shielding member for clean edges, a rotatable feeding tube for accessing all paint areas, and detachable nozzle and piston assembly for easy cleaning, allowing for flexible operation and efficient paint use without disassembling the entire sprayer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the nozzle and paint flow channel are used for extended periods, then painting productivity increases, but paint residues harden and accumulate making cleaning difficult
Solution Approach 1:
The device is divided into separable components including a removable nozzle assembly and a detachable feeding tube. The nozzle can be separated from the housing, and the feeding tube can be removed from the container, allowing users to access and clean internal paint flow channels without disassembling the entire device. This segmentation enables easy maintenance while maintaining painting productivity.
2Ease of operation
If conventional paint sprayers are used, then painting can be performed, but the entire sprayer must be disassembled for cleaning which is troublesome and sometimes impossible
Solution Approach 1:
The feeding tube is designed to be detachably connected to the container, allowing it to be extracted and removed separately. The nozzle assembly is also designed to be removable from the housing. This extraction design enables users to take out only the components that need cleaning, avoiding the need to disassemble the entire sprayer system.
3Loss of substance
If a fixed feeding tube is used in conventional sprayers, then the structure is simple, but parts of the container interior space cannot be reached making paint utilization inefficient
Solution Approach 1:
The feeding tube incorporates a movable distal end that can be adjusted to different positions and orientations within the container. This dynamic positioning capability allows the feeding tube to reach various corners and areas of the container interior, enabling complete paint utilization and minimizing waste while maintaining manageable device complexity.
4Manufacturing precision
If conventional spray techniques are used, then painting can be performed, but skilled operation is required to produce clear and sharp boundaries
Solution Approach 1:
A shielding member is introduced as an intermediary component between the nozzle and the target surface. This shielding member physically blocks and defines the spray pattern boundaries, creating sharp and clear edges without requiring skilled manual control. The shielding member acts as a mediator that translates the spray output into precise paint patterns, reducing the skill requirement for operators.
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 device provides a user-friendly, efficient, and precise painting experience with easy cleaning and maintenance, reducing paint waste and eliminating the need for professional disassembly, while allowing for flexible spraying patterns and sharp edges.
Implementation Method 1
The paint is extracted from the container to the nozzle by air pressure, for example when the paint sprayer is connected to an external air source. The external pressurized air when introduced into the container creates a pressure that forces the paint to flow through a feeding tube to the nozzle.
Implementation Method 2
a handheld liquid dispensing device using high-pressure air to atomize the liquid for dispensing
Data Source
AI summary
A liquid dispensing device includes a body, a nozzle on an end of the body, a liquid container coupled to the body, and a piston configured to move in the body so as to control an ejection of liquid from the nozzle. The piston and the nozzle are configured to be detached from the body as an assembly.