Angle-Adjustable Power Tool With Elastic Head Positioning
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Solution Overview
Problem
Conventional power tools with pivot devices lack a stably positioned structure, leading to swinging of the driving head during angle adjustment, causing potential damage to the workpiece and increasing manufacturing complexity and cost due to complex gas flow channels.
Innovation Solution
An angle-adjustable power tool with a positioning group comprising an engaging mount, engaging disk, pivot base, and elastic element, allowing stable angle adjustment and simplified gas flow path through communicating recesses and channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pivot device is disposed between the handle and the driving head to adjust the angle, then the user can process the workpiece at a proper angle, but the driving head may swing relative to the handle during processing due to lack of stable positioning structure
Solution Approach 1:
The positioning group is pre-configured with positioning protrusions and positioning grooves that engage before processing begins. The elastic element pre-compresses to provide continuous positioning force, preventing the driving head from swinging during operation while maintaining angle adjustment capability.
Solution Approach 2:
The positioning group acts as an intermediary mechanism between the handle and driving head. It includes a positioning protrusion on the driving head that engages with a positioning groove on the handle, mediated by an elastic element that provides continuous contact force to maintain stable positioning at adjusted angles.
2Reliability
If the conventional power tool is provided with a gas flow channel of complex shape to accurately transmit gas, then gas can be transmitted to the driving head, but it causes difficulty in processing and increases manufacturing cost and time
Solution Approach 1:
The gas flow channel is segmented into multiple straight sections rather than a single complex curved channel. The gas passage is divided into segments that can be easily manufactured and assembled, reducing processing difficulty while maintaining accurate gas transmission to the driving head.
Solution Approach 2:
Instead of creating a complex three-dimensional curved gas channel, the design uses multiple straight gas passages arranged in different spatial dimensions. This allows gas to reach the driving head accurately through a series of simple linear paths that are easier to manufacture than a single complex curved channel.
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
Enables stable and accurate angle positioning of the driving head, preventing damage and reducing manufacturing complexity and cost by using a simple structure with a positioning group and streamlined gas flow.
Implementation Method 1
a positioning group (30) is disposed between the handle (10) and the driving head (20)... an elastic element (32)
Data Source
AI summary
An angle-adjustable power tool has a handle, a driving head, and a positioning group. The handle has an engaging mount and an engaging disk. The engaging mount is disposed on a top of the handle and has a communicating recess and a fixing recess. The engaging disk is mounted in the fixing recess of the engaging mount. The driving head is rotatably connected to the handle and has a pivot base and a head portion. The pivot base is disposed in a bottom of the driving head and is rotatably connected to the handle to dispose the engaging mount and the engaging disk between the handle and the pivot base. The positioning group is disposed between the handle and the driving head and has a positioning mount, an elastic element, an abutting mount, and a toggling element.