Hand tool with replaceable workpiece head
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Solution Overview
Problem
Traditional hand tools with fixed workpiece heads are prone to damage over time, leading to unnecessary waste and limited functionality, as the entire tool must be discarded when the head is damaged.
Innovation Solution
A hand tool design featuring a detachable workpiece head with an insertion block and a movable locking mechanism, allowing for easy installation and removal of the workpiece head without complex operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the workpiece head is fixedly connected to the handle, then the tool structure is simple and stable, but the workpiece head cannot be replaced when damaged, leading to unnecessary waste and limited functionality
Solution Approach 1:
The tool is divided into two separable parts: a handle and a workpiece head. The workpiece head can be detached and replaced independently from the handle, allowing users to swap different heads for different tasks or replace damaged heads without discarding the entire tool.
Solution Approach 2:
The workpiece head is extracted as a separate replaceable component from the handle. By providing a detachable connection mechanism, the workpiece head can be removed and replaced independently, enabling the handle to be reused with different heads.
2Ease of operation
If a fixed mechanism with locking plate and movable plate is used to install the workpiece head, then the connection is secure, but the installation and detachment process is complex and time-consuming
Solution Approach 1:
The locking plate is removed from the structure, leaving only the movable plate with elastic pieces. This simplifies the mechanism while maintaining secure connection through the elastic pieces that automatically engage with grooves on the workpiece head.
Solution Approach 2:
The elastic pieces on the movable plate automatically engage with the grooves on the workpiece head during insertion, providing self-locking functionality. The user simply needs to insert the workpiece head, and the elastic pieces automatically snap into place, eliminating the need for manual locking operations.
Data Source
AI summary
A hand tool with a replaceable workpiece head includes a handle and a workpiece head. A rear end of the workpiece head is provided with an insertion block. A front end surface of the handle is provided with an insertion hole. The insertion block of the workpiece head is inserted into the insertion hole. A side wall of the handle is provided with a receiving slot which is communicated with the insertion hole. A rear end of the insertion block is provided with a locking part. The receiving slot is provided with a movable locking member and a pushing mechanism. The pushing mechanism is capable of pushing the movable locking member such that the movable locking member and the locking part are engaged with each other.