Impact Spinning Hand Tool Lever Mechanism
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Solution Overview
Problem
Existing hand tools with both general and impact spinning functions lack stability, making them inconvenient for users to switch between functions and maintain during operation.
Innovation Solution
An impact spinning hand tool design featuring a hollow body, a first lever, and a first elastic member, with a position-limiting structure and a button, allowing the lever to store elastic restoring force and switch between general and impact spinning functions seamlessly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hand tool integrates both general and impact spinning functions, then versatility is improved, but stability deteriorates
Solution Approach 1:
The patent implements a movable first lever that can switch between two positions: a first position where the lever presses against the hollow body to maintain structural stability for general spinning, and a second position where the lever is separated from the hollow body to enable impact spinning function. This dynamic repositioning allows the tool to adapt its structure based on the required function, resolving the contradiction between versatility and stability.
Solution Approach 2:
The patent divides the tool into separable functional components: a hollow body containing the impact mechanism, a first lever with spinning structure, and a button for activation. The first lever can be independently positioned and separated from the hollow body, allowing the impact spinning function to be activated only when needed. This segmentation enables the tool to maintain stability during general use while providing impact capability when required.
2Adaptability or versatility
If the first lever is separated from the hollow body to perform impact spinning, then impact spinning function is enabled, but structural stability deteriorates
Solution Approach 1:
The first lever is designed to be movable between a connected state (first position) and a separated state (second position). When connected, the lever maintains structural stability for general spinning operations. When separated, the lever enables impact spinning by allowing the impact mechanism to function independently. This dynamic transition resolves the contradiction between enabling impact function and maintaining structural stability.
Solution Approach 2:
The button acts as an intermediary mechanism that controls the separation and connection of the first lever with the hollow body. By pressing the button, the user activates the impact spinning function through a controlled intermediate step, rather than directly separating the lever. This intermediary control mechanism ensures stable and reliable switching between functions while maintaining overall structural integrity.
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 design enhances stability and convenience by allowing quick switching between functions, preventing unintended function changes during use and maintaining the tool's stability when performing general tasks.
Implementation Method 1
the first lever presses the first elastic member to store an elastic restoring force
Implementation Method 2
a hammer is used to knock the forcing end of the impact spinning screwdriver. Using an impact force producing from knocking will impact the screw stocked in the parts and continually make it loosen
Data Source
AI summary
An impact spinning hand tool includes a hollow body, a first lever and a first elastic member. The hollow body includes a first position-limiting structure. The first lever includes a driving end exposed outside the hollow body, a spinning structure and a forcing end contained in the hollow body. The forcing end has a second position-limiting structure that is detachably limited by the first position-limiting structure. The first elastic member is pushed against the forcing end and the first position-limiting structure through two ends thereof. The first lever is located at a first position and presses the first elastic member to store an elastic restoring force when being connected with the hollow body. When the second position-limiting structure is released, the elastic restoring force drives the first lever to move to a second position so as to allow the spinning structure to perform an impact spinning action.