Electric Drill Switch Locking Assembly for One-Handed Activation
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Solution Overview
Problem
Conventional power switches and locking mechanisms in ice drills and earth drills require two hands to operate, which reduces user control experience and increases the risk of accidental power activation.
Innovation Solution
A switch assembly with a locking mechanism that allows users to unlock and press the switch with one hand, featuring a button with a pressing part that cooperates with a first switch, and a locking mechanism with a locking member and trigger that enables one-handed operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to prevent accidental power activation, then safety is improved, but operation complexity increases requiring two hands
Solution Approach 1:
The patent combines the locking mechanism and power switch into a single integrated assembly. The trigger mechanism that locks the power switch is merged with the power switch housing, creating a unified structure that can be operated with one hand. This merging eliminates the need for separate locking and switching actions, resolving the contradiction between safety and ease of operation.
Solution Approach 2:
The trigger serves multiple functions: it acts as both the locking mechanism (when in the locked position) and the power activation mechanism (when pulled). This multi-functionality allows a single component to provide both safety locking and power control, eliminating the need for separate two-handed operations and improving ease of use while maintaining safety.
2Reliability
If conventional two-handed operation is required, then accidental activation is prevented, but user control experience deteriorates
Solution Approach 1:
The power switch incorporates a dynamic trigger mechanism that can transition between locked and unlocked states. The trigger is designed to be held in a locked position during normal operation and can be dynamically activated by a pulling motion. This dynamic design maintains safety during normal use while enabling easy one-handed activation when needed, improving user control experience.
Solution Approach 2:
The trigger acts as an intermediary mechanism between the user's hand and the power switch. It provides a mechanical linkage that translates a simple pulling motion into both the unlocking action and the power activation. This intermediary mechanism simplifies the user's interaction while maintaining the safety function, resolving the contradiction between accidental activation prevention and user control experience.
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 switch assembly enables users to unlock and press the switch with one hand, allowing the other hand to perform other operations, thereby improving user experience and reducing the risk of accidental power activation.
Implementation Method 1
the button is provided with a first elastic component to reset the button
Implementation Method 2
the locking member is further provided with a second elastic component to reset the locking member
Data Source
AI summary
The disclosure provides a switch assembly and an electric drill. The switch assembly includes a first switch, a button, and a locking mechanism. The button is provided with a pressing part that cooperates with the first switch, so as to trigger the first switch when the button is pressed. The locking mechanism includes a locking member for locking the button and a trigger pivotally mounted and matched with the locking member. When the locking mechanism is locked, the locking member resists the button, so that the button cannot be pressed. When the trigger is rotated, the trigger drives the locking member to move, so that the locking member is misaligned with the button, and the button can be pressed at this time.