Ratchet Wrench Locating Unit for Accessory Tool Securing
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Solution Overview
Problem
Conventional ratchet wrenches lack a secure mechanism to hold accessory tools, requiring users to manually hold the tool while operating the wrench, which is inconvenient.
Innovation Solution
A ratchet wrench design featuring a locating unit with an engaging portion that secures accessory tools via a peripheral groove, allowing the tool to be held securely during operation and enabling easy tool replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If accessory tool is simply received in polygonal hole without locating unit, then device structure is simple, but accessory tool cannot be firmly secured during operation
Solution Approach 1:
The locating unit is designed to be movable along the slot in the stepped portion, allowing it to dynamically adjust its position. When the accessory tool is inserted, the locating unit moves to engage with the peripheral groove, firmly securing the tool. This dynamic mechanism provides reliable securing without requiring a complex fixed structure.
Solution Approach 2:
The locating unit acts as an intermediary element between the main body and the accessory tool. It mediates the connection by engaging with the peripheral groove of the accessory tool through the slot, providing a secure interface without directly complicating the main body structure.
2Ease of operation
If locating unit extends into operating hole to engage accessory tool, then accessory tool is firmly secured, but device structure becomes more complex
Solution Approach 1:
The locating unit is designed to automatically engage with the accessory tool when inserted into the operating hole. The user simply needs to insert the tool, and the locating unit self-activates to secure it, enabling single-handed operation without requiring manual engagement of additional securing mechanisms.
Solution Approach 2:
The locating unit is segmented into a body portion and an engaging portion, allowing it to move independently along the slot and engage with the accessory tool. This segmentation enables the securing function to be separated from the main body, simplifying the overall operation while providing firm securing.
3Adaptability or versatility
If ratchet wrench is designed to engage with different accessory tools, then adaptability is improved, but locating mechanism must accommodate various tools
Solution Approach 1:
The locating unit is designed with a universal engaging portion that can accommodate different accessory tools through a common peripheral groove interface. The slot in the stepped portion provides a universal path for the locating unit to move and engage, allowing the same locating mechanism to work with various tools without requiring tool-specific designs.
Data Source
AI summary
A ratchet wrench may comprise a main body, a circular ratchet gear, a locating unit, a spring and at least an accessory tool. The main body has an operating rod and a head portion, and an operating hole penetrates through a central portion of the head portion. Also, the ratchet gear is installed inside the operating hole. The locating unit is configured to extend toward an interior of the operating hole through an engaging portion thereof, and a peripheral groove is located at an end of the accessory tool along an outer periphery thereof. By engaging the engaging portion of the locating unit with the peripheral groove of the accessory tool, the accessory tool inserted into the connecting hole is configured to be secured on the main body for operation.