Air Pump Handle Locking Structure to Prevent Hand Pinching
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Solution Overview
Problem
Conventional air pump handles often fail to remain in their operative position during inflation, leading to the potential for pinching the user's hand and disrupting smooth inflating operations.
Innovation Solution
The anti-pinch handle for an air pump incorporates a limiting member with a recess, a pivotally connected handle body, a switch member with a restricting portion, and a biasing member. This configuration allows the handle to securely transition between folded and use positions, preventing pinching by engaging the restricting portion with the limiting recess.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the handle is made pivotally connected to allow folding for space saving, then the storage space efficiency is improved, but the handle may pinch user's hand during operation
Solution Approach 1:
The switch member with restricting portion is designed to preemptively engage with the limiting recess before the handle can pivot to a harmful position. This preliminary engagement prevents the handle from moving into positions that could pinch the user's hand, while still allowing the handle to fold to a storage position when the switch member is actuated.
Solution Approach 2:
The switch member acts as an intermediary mechanism between the handle body and the limiting member. It controls the engagement between the restricting portion and limiting recess, mediating the handle's movement to ensure safe operation while maintaining folding capability for space-saving storage.
2Reliability
If the handle is retained firmly in operative position to prevent pinching, then safety is improved, but the handle complexity increases
Solution Approach 1:
The handle assembly is segmented into distinct functional components: the handle body, the switch member, the limiting member with recess, and the biasing member. This segmentation allows each component to perform its specific function independently, achieving reliable position retention through the coordinated interaction of simple, well-defined parts rather than a single complex mechanism.
Solution Approach 2:
The biasing member provides automatic self-service by continuously applying elastic force to the switch member, maintaining it in the engaged position with the limiting recess. This eliminates the need for additional locking mechanisms or manual intervention to maintain handle stability, achieving reliable position retention through the self-actuating elastic biasing mechanism.
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 anti-pinch handle effectively prevents the handle body from pivoting during inflation, thereby avoiding hand pinching and ensuring a smooth, secure inflating process.
Implementation Method 1
The biasing member is configured to elastically bias the switch member toward the outside of the slot
Data Source
AI summary
A handle includes a limiting member, a handle body, a switch member and a biasing member. The limiting member is adapted to connect with an air pump and has a limiting recess. The handle body is pivotally connected to the limiting member to change between a folded position and a use position, and has a slot. The switch member is pivotally arranged in the slot and has a restricting portion detachably engaged with the limiting recess. The restricting portion is engaged with the limiting recess when the handle body is in the use position, and is disengaged from the limiting recess as the switch member moved relative to the slot. The biasing member biases the switch member toward the outside of the slot.