Mower Operating Lever Reset and Locking Mechanism
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Solution Overview
Problem
Traditional mowers have complex structures, difficulty in automatically resetting, and inconvenient operations, leading to increased manufacturing and assembly costs due to assembly errors and complexity in adjusting the center position of the operation handle.
Innovation Solution
The mower incorporates a frame with a walking assembly, cutting deck assembly, and an operating mechanism that includes an operating lever mounting base, lever, limiting assembly, and reset assembly, utilizing a reset assembly to automatically return the operating lever to an initial position and a limiting assembly to lock it, simplifying the structure and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If traditional operating mechanism structure is used, then the mower can operate, but the structure becomes complex and assembly errors increase
Solution Approach 1:
The operating mechanism is divided into independent functional modules: operating lever assembly, limit assembly, reset assembly, and elastic assembly. Each module performs a specific function and can be assembled separately, reducing overall structural complexity and minimizing cumulative assembly errors.
Solution Approach 2:
The operating lever serves multiple functions: it controls the walking assembly, engages with the limit assembly for position restriction, and interacts with the elastic assembly for reset functionality. This multi-functionality reduces the need for separate components, simplifying the overall structure.
2Extent of automation
If traditional operating mechanism is used, then the mower can be controlled, but automatic resetting capability is lost
Solution Approach 1:
The reset assembly with elastic component automatically returns the operating lever to its initial position after operation, without requiring manual intervention. The system serves itself by using the stored elastic energy to perform the reset function, achieving automatic resetting while maintaining ease of operation.
Solution Approach 2:
The elastic assembly is pre-loaded with potential energy during the operating lever's movement, which is then released to automatically reset the lever to its initial position. This preliminary energy storage enables automatic resetting action without additional operational steps.
3Adaptability or versatility
If complex operating mechanism is used, then more functions are available, but manufacturing and assembly costs increase
Solution Approach 1:
Multiple functions (operating control, limiting, resetting, and elastic recovery) are merged into a compact integrated mechanism where components work together synergistically. This consolidation reduces the total number of separate parts, simplifying manufacturing and assembly processes while maintaining full functionality.
Solution Approach 2:
Each component is designed with specific local characteristics optimized for its function: the operating lever has specific geometric features for engagement, the limit assembly has precise positioning surfaces, and the elastic assembly has optimized material properties. This localized optimization enables efficient manufacturing of each part while ensuring overall system performance.
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 design simplifies the mower's structure, reduces assembly errors, and enhances operational convenience by allowing automatic resetting and precise control of the operating lever, thereby reducing manufacturing and assembly costs.
Implementation Method 1
an elastic assembly, the elastic assembly is installed on the operating lever mounting base and is connected with the limiting plate
Implementation Method 2
the elastic assembly includes a spring base and a compression spring arranged in the spring base, the spring base is fixedly installed at a bottom of the operating lever mounting base, a first end of the compression spring is connected with the spring base, a second end of the compression spring is connected with the limiting plate
Implementation Method 3
the limiting assembly includes a fixing base, a limiting rod and an clastic body, a first end of the limiting rod is arranged on the fixing base, a second end of the limiting rod extends towards the operating lever, the limiting plate is provided with a limiting hole matched with the limiting rod
Data Source
AI summary
A mower includes a frame, a walking assembly, a cutting deck assembly and an operating mechanism. The walking assembly, the cutting deck assembly and the operating mechanism are all installed on the frame, and the operating mechanism is configured to control a walking of the walking assembly. The operating mechanism includes an operating lever mounting base, an operating lever, a limiting assembly and a reset assembly. The operating lever mounting base is rotatably installed on the frame along a first direction. The operating lever is rotatably installed on the operating lever mounting base along a second direction. The reset assembly drives the operating lever to reset to an initial position in the first direction, and the limiting assembly locks the operating lever in the initial position.