Modular Handheld Sprayer Fluid Module Design
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Solution Overview
Problem
Handheld airless sprayers face challenges in efficiently switching between multiple fluid types and maintaining wear components, leading to downtime and inefficiencies in applications requiring rapid color changes and frequent maintenance.
Innovation Solution
A modular design with a fluid module and drive module connected by static and dynamic connections, allowing for easy attachment and detachment of fluid modules, enabling quick fluid changes and facilitating the replacement of wear parts without disassembling the sprayer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the sprayer uses a fixed integrated design, then structural stability is maintained, but fluid changes and wear component replacement require disassembly and take significant time
Solution Approach 1:
The sprayer is divided into a drive module and a fluid module that can be independently separated. The fluid module containing the reservoir and pump can be quickly detached from the drive module without disassembling internal components, enabling rapid fluid changes and maintenance while maintaining structural integrity during operation.
Solution Approach 2:
The connection between the fluid module and drive module is designed to be dynamically changeable rather than permanently fixed. This allows the system to transition between a connected state for stable operation and a separated state for quick maintenance, combining structural stability with operational flexibility.
2Productivity
If the sprayer allows quick fluid changes, then productivity is improved, but the connection mechanism becomes more complex
Solution Approach 1:
The sprayer system is segmented into separable modules with standardized connection interfaces. The fluid module can be quickly swapped with another module containing different fluid, enabling rapid color changes and multi-fluid applications without complex internal reconfiguration.
Solution Approach 2:
The drive module is designed with a universal connection interface that can accommodate multiple fluid modules. This allows a single drive module to work with various fluid modules containing different paints, coatings, or fluids, increasing versatility and productivity across different spray applications.
3Ease of repair
If wear components are integrated into the main body, then manufacturing precision is maintained, but repair time increases due to disassembly requirements
Solution Approach 1:
The fluid module containing wear-prone components like the pump is separated from the drive module. This allows the fluid module to be quickly removed and replaced or serviced without disassembling the drive module, significantly reducing maintenance downtime while preserving the manufacturing precision of the integrated drive components.
Solution Approach 2:
The fluid module with its wear components is extracted as a separate serviceable unit. This enables independent maintenance of the fluid handling system without affecting the drive system, allowing wear components to be replaced or the entire fluid module to be swapped out quickly.
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
This modular design enables rapid fluid changes and reduces downtime by allowing multiple fluid modules to be used with a single drive module, and allows for fast repair of wear parts, improving operational efficiency and convenience.
Implementation Method 1
handheld sprayers can pressurize liquid paint to upwards of 3,000 psi [pounds per square inch] (−20.7 MPa) to spray the paint
Implementation Method 2
the drive module powering the pump of the fluid module by mechanical motion conveyed from the drive module to fluid module through the dynamic connection
Data Source
AI summary
A handheld sprayer (10′) includes a fluid module (12′) mounted to a drive module (14′) at a static connection (16′) and a dynamic connection (18′). The static connection (16′) supportably attached the fluid module (12′) to the drive module (14′). The dynamic connection (18′) connects a drive (84) of the drive module (14′) to a pump (24′) of the fluid module (12′) such that the drive (84) can power the pump (24′) by the dynamic connection (18′). The fluid contacting components of the handheld sprayer (10′) are in the fluid module (12′). The fluid module (12′) can be mounted to and dismounted from the drive module (14′) by a sliding motion.