Nail Gun Empty-Firing Prevention Safety Device
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Solution Overview
Problem
Existing empty-firing prevention safety devices for nail guns are prone to failure due to environmental pollution and have high production and assembly costs due to complex structures and numerous components.
Innovation Solution
A safety device with a connecting rod that includes a sensing portion, a limit portion, and a spring, where the limit portion is positioned within the actuating space of the gun body, aligning or misaligning with the trigger's abutting portion to prevent empty firing, thus avoiding environmental-pollution caused failures and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the limit pin and spring are located outside the side plates of the gun body, then the safety mechanism can be implemented, but the joint is prone to being stuck or damaged due to oil or dirt, causing failure due to environmental pollution
Solution Approach 1:
The limit portion is extracted from the external environment and relocated inside the actuating space of the gun body, isolating it from oil and dirt contamination while maintaining the safety blocking function
Solution Approach 2:
The actuating space serves as an intermediary protected environment that shields the limit portion from harmful external factors while allowing the safety mechanism to function
2Reliability
If the arresting mechanism uses many components and complex structure to achieve safety mechanism, then the safety function can be implemented, but the production and assembly costs increase
Solution Approach 1:
The limit portion is integrated as part of the connecting rod structure, merging the safety limiting function with the existing connecting rod component, thereby reducing the total number of parts and simplifying the overall structure
Solution Approach 2:
The connecting rod is designed to serve multiple functions: it connects the trigger to the striker and simultaneously provides the limit portion to prevent empty firing, making the component multi-functional and reducing component count
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
Effectively prevents empty firing of the nail gun's striker, avoids environmental-pollution caused failures, and reduces production and assembly costs by simplifying the structure and reducing the number of components.
Implementation Method 1
a spring located between the side portion and the first side plate portion, when there is no nail in the nail groove, the spring pushes the connecting rod from the actuating position to the locking position
Data Source
AI summary
An empty-firing prevention safety device for a nail gun includes: a gun body including an actuating space and a nail groove; a trigger, capable of being pressed, located in the actuating space; and a connecting rod pivoted to the gun body and capable of being moved between an actuating position and a locking position, and including: a sensing portion located in or away from the nail groove, and a limit portion located in the actuating space and facing the abutting portion, when the connecting rod is in the actuating position, the sensing portion moves out of the nail groove, the limit portion is misaligned with the abutting portion, allowing the trigger to be pressed, when the connecting rod is in the locking position, the sensing portion is located in the nail groove, and the limit portion is aligned with the abutting portion, so that the trigger cannot be pressed.