Backpack Sprayer Layout Reducing Carrying Difficulty
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Backpack sprayers are often heavy and have unevenly distributed weight, making them difficult to carry due to an unfavorable center of gravity.
Innovation Solution
The design includes a fluid container positioned closest to the user's body, with the pump assembly, motor, and battery compartment vertically arranged and spaced away from the user's back, thereby reducing the distance from the user's body to the center of gravity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the tank is positioned further away from the user's body, then the sprayer can accommodate larger tank capacity, but the center of gravity moves away from the user's body increasing carrying difficulty
Solution Approach 1:
The patent repositions components from a horizontal arrangement (tank away from body) to a vertical arrangement (battery below pump, motor below battery). This dimensional change allows the tank to remain close to the user's back while accommodating sufficient fluid capacity, as the vertical stacking enables longer fluid pathways without increasing horizontal distance from the body.
Solution Approach 2:
The patent divides the mechanical components into separate vertical segments: the battery in a battery compartment, the motor in a motor compartment, and the pump assembly. This segmentation allows each component to be positioned optimally in the vertical stack, with the tank positioned closest to the user's body, thereby maintaining a favorable center of gravity while supporting adequate tank capacity.
2Adaptability or versatility
If multiple components (battery, motor, pump) are added to the sprayer, then the sprayer functionality is enhanced, but the overall weight of the sprayer increases
Solution Approach 1:
The patent merges the battery, motor, and pump assembly into a single integrated base structure. The battery compartment and motor compartment are combined with the pump assembly housing to form one unified base unit that attaches to the tank. This merging reduces the number of separate components and minimizes overall weight while maintaining all necessary functionalities.
Solution Approach 2:
The patent employs a nested arrangement where the battery compartment is positioned within the base structure, the motor compartment is integrated into the same base, and the pump assembly is fluidly coupled within this consolidated structure. This nesting approach allows multiple components to occupy overlapping or adjacent spaces efficiently, reducing total volume and weight while preserving full functionality.
3Ease of operation
If the battery compartment and motor compartment are positioned close to the user's back, then the center of gravity is improved, but the fluid pathway length increases
Solution Approach 1:
The patent transitions from a horizontal fluid pathway arrangement to a vertical one. The pump assembly is positioned with its inlet connected to the tank and its outlet extending downward to the dispensing assembly through a vertical conduit. This vertical dimension allows the power components to be close to the user's back while maintaining efficient fluid delivery through the vertical pump chamber and conduit system.
Data Source
AI summary
A backpack fluid dispenser is provided. The backpack fluid dispenser comprising: a fluid container and a base coupled to the fluid container. The base comprises a housing body, a battery compartment in the housing body for receiving a battery, and a motor compartment housing a motor. The fluid dispenser includes a pump assembly fluidly coupled with the fluid container, a support assembly configured to support the fluid container, base, and pump assembly. The fluid dispenser includes a dispensing assembly for dispensing fluid from the container. The pump assembly is configured to pump the fluid from the fluid container to the dispensing assembly. The battery compartment is disposed below the pump assembly in a vertical direction.