Sealed Robotic Mower Casing With Pressure Balance Module
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Solution Overview
Problem
Conventional lawn mowers are noisy, dusty, and physically demanding for operators, leading to fatigue and potential accidents due to the need for continuous manual control and handling.
Innovation Solution
A robotic mower with an intelligent control system, adjustable blade height, and automated navigation, allowing for remote operation and improved efficiency by minimizing operator involvement and reducing exposure to harsh working conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a robotic mower with sealed casing is used, then user safety is improved and exposure to noise and dust is reduced, but device complexity increases due to sealing requirements and pressure balance mechanisms
Solution Approach 1:
The patent extracts the sealing function from the overall casing design by implementing a modular sealed structure with detachable functional modules. This allows the sealing system to be maintained and serviced independently, reducing overall device complexity while maintaining protection against noise and dust.
Solution Approach 2:
The patent introduces a pressure balance hole as an intermediary element that mediates between the sealed interior and exterior environments. This small opening maintains pressure equilibrium without compromising the overall sealing, preventing deformation while exposing minimal surface area to harmful factors.
2Ease of repair
If functional modules are detachably installed, then ease of maintenance is improved, but reliability may worsen due to potential sealing failures at connection points
Solution Approach 1:
The patent implements preliminary sealing preparation by providing sealing rings pre-installed on functional modules and corresponding sealing structures on the casing. This advance preparation ensures that when modules are detached and reinstalled, the sealing function is automatically restored without requiring additional maintenance actions, thus maintaining reliability while enabling easy repair.
Solution Approach 2:
The patent uses flexible sealing rings and film-like sealing structures that can deform to accommodate the connection and disconnection of functional modules. These flexible sealing elements maintain continuous sealing contact even during module installation and removal, preventing dust and noise infiltration while allowing easy maintenance access.
3Stability of the object's composition
If a sealed structure with pressure balance hole is used, then structural stability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent designs the pressure balance hole structure to automatically self-align and self-regulate during assembly. The hole is positioned such that it naturally finds its correct location relative to the sealing surface, eliminating the need for high-precision manufacturing. The structure itself provides the positioning function, reducing manufacturing complexity while maintaining structural stability.
Data Source
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AI summary
The present invention is related to a mower which includes: a housing (1); a movable upper cover (2), disposed on the housing (1); and a cutting assembly (3), disposed on the housing (1). The cutting assembly (3) includes a blade carrier assembly, and the blade carrier assembly includes a blade carrier (5) and a blade (6). The blade carrier includes a disc body (219) and a blade receiving groove (220) recessed inwardly from an edge of the disc body along an axial direction of the disc body. The blade is mounted in the blade receiving groove and arranged to be that the blade is not protruded out of the blade receiving groove in the axial direction of the disc body.