Handheld Implement Locking Mechanism for Quick Tool Replacement
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Solution Overview
Problem
Existing garden and agricultural tools with replaceable work tools face inefficiencies due to cumbersome replacement mechanisms, affecting operating efficiency in agricultural or gardening work.
Innovation Solution
A handheld implement with a locking device featuring a movable member, retaining members, and springs allows for easy detachment and reattachment of work tools, utilizing mating bodies and sliding tracks for stable and reliable mounting, enabling convenient replacement and improved service performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If work tools are detachably mounted using bolts or clamps, then the work tools can be replaced, but the replacement process becomes inconvenient and time-consuming
Solution Approach 1:
The locking device is divided into multiple functional components: a movable member with locking portions, retaining members with elastic arms, and a spring mechanism. This segmentation allows each component to perform a specific function in the locking sequence, enabling quick one-handed operation while maintaining secure attachment
Solution Approach 2:
The locking device uses a movable member that can transition between locked and unlocked positions through simple linear movement. The elastic retaining members dynamically adjust during the locking process, automatically engaging and disengaging from the work tool's locking hole without requiring complex manual manipulation
2Adaptability or versatility
If work tools are detachably mounted using bolts or clamps, then the work tools can be replaced, but the operating efficiency is reduced
Solution Approach 1:
The retaining members are pre-positioned in an extended state with their locking portions ready to engage with the work tool's locking hole. The spring is pre-loaded to automatically push the locking portions into the locking hole when the movable member is moved to the locked position, eliminating the need for manual alignment and reducing replacement time
Solution Approach 2:
The spring mechanism automatically performs the locking action once the movable member is positioned. The elastic retaining members self-adjust during engagement, and the entire locking process occurs without requiring additional tools or complex manual operations, significantly improving tool replacement speed and operating efficiency
3Ease of operation
If a locking device with movable member and retaining members is used, then tool replacement becomes convenient, but the device structure becomes more complex
Solution Approach 1:
The locking device combines multiple functions into a single integrated assembly: the movable member houses both the locking portions and the spring mechanism, while the retaining members integrate the elastic arms and locking portions. This merging reduces the number of separate components and simplifies the overall structure despite the advanced locking mechanism
Solution Approach 2:
The spring is nested within the movable member, and the locking portions are nested within the retaining members. This nested arrangement compactly packs the functional components within the handle body, minimizing the overall size and complexity of the locking device while maintaining all necessary functions for convenient tool replacement
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
The solution facilitates quick and stable mounting of work tools, enhancing operating efficiency and service performance by allowing easy disassembly and reassembly, thus improving the convenience and reliability of agricultural or gardening tasks.
Implementation Method 1
two ends of the first spring respectively abutting against the first retaining member and the second retaining member so that the two retaining members are inserted into a locking hole of the work tool while remaining in an extended state
Implementation Method 2
the locking device further includes a second spring, both ends of which are respectively connected with the fixed member and the movable member
Data Source
AI summary
A handheld implement with a replaceable work tool includes a handle body which is equipped with a locking device for detachably mounting the work tool. The locking device includes a movable member, at least one retaining member and a first spring. The first spring abuts against the retaining member so that the retaining member is inserted into a locking hole of the work tool while remaining in an extended state. The retaining member includes a first mating body including at least one second mating body. The second mating body includes a mating portion, and the movable member performs translational movement so that the mating portion and the first mating body cooperate with each other to drive the retaining member to retreat and then withdraw from the locking hole of the work tool.