Power Sweeper Handle Angle Adjustment for User Adaptability
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Solution Overview
Problem
Current power sweepers lack adjustable angles between the handle and the ground surface, which can lead to inefficient sweeping operations, especially on uneven surfaces or when users have varying heights.
Innovation Solution
A power sweeper design featuring a moveable axle and shield system that allows for adjustable angles between the handle and the ground surface, facilitated by a gearbox and wheel assembly, enabling users to customize the sweeping angle for optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the handle angle is fixed, then the device structure is simple, but the adaptability to different user heights and surfaces is poor
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed handle angle into an adjustable one. The shield is made movable relative to the wheel assembly through a fastening mechanism, allowing the handle angle to be dynamically changed according to user height and surface conditions. This resolves the contradiction by enabling adaptability while maintaining structural simplicity through a straightforward movable shield design.
2Ease of operation
If the handle angle is adjustable, then the user comfort and efficiency are improved, but the device complexity increases
Solution Approach 1:
The shield is designed to be movable relative to the wheel assembly, enabling dynamic adjustment of the handle angle. This allows users to optimize the sweeping angle for their comfort and efficiency needs while maintaining a relatively simple structural implementation through a straightforward fastening mechanism.
Solution Approach 2:
The patent applies parameter changes by allowing the handle angle parameter to be adjusted. The shield can be positioned at different angles relative to the wheel assembly and fixed in place, changing the geometric parameter of the handle angle to suit different user preferences and operating conditions without requiring complex control systems.
3Adaptability or versatility
If the shield is fixed to the wheel assembly, then the structural stability is high, but the angle adjustment capability is lost
Solution Approach 1:
The shield is designed with movable and fixed states. During operation, the shield can be adjusted to the desired angle and then secured using the fastening mechanism, providing both adjustability and structural stability. The fastening mechanism allows the shield to be firmly fixed when needed while permitting adjustment when required.
Data Source
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AI summary
A power sweeper has a handle having a first end graspable by a user and a second end, a drive shaft extending along the handle, and a power head coupled to the handle to rotate the drive shaft. A gear box is coupled to the drive shaft adjacent the second end, and a brush is coupled to the gear box for rotation in response to rotation of the drive shaft. The power sweeper includes an axle, and first and second wheels coupled to the axle. A shield is coupled to the gear box and defines an aperture through which the handle extends. The axle is moveable with respect to the shield and the brush to adjust an angle between the handle and the ground surface.