Rotating Sleeve Wrench With Gradually-Opened Locking Strip
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Solution Overview
Problem
Conventional wrenches have single functions, limiting their versatility and requiring separate tools for different screw types, such as screws and bolts.
Innovation Solution
A multifunction wrench design incorporating a sleeve system with a rotating sleeve, locking strip, hexagonal sleeve, and magnetic steel, allowing the wrench to adapt to both internal and external hexagonal screws/bolts through a gradually-opened face structure for locking and releasing, and utilizing magnetic steel for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-function wrench is used, then the structure is simple and manufacturing cost is low, but the versatility and functionality are limited
Solution Approach 1:
The wrench incorporates a rotating sleeve with a gradually-opened face structure that can adapt to different screw types (external and internal hexagonal screws/bolts). The sleeve rotates to different positions to engage with different fastener types, allowing a single wrench to perform multiple functions that previously required separate tools.
Solution Approach 2:
The wrench features a rotating sleeve that can be dynamically adjusted to different angular positions. The gradually-opened face structure on the rotating sleeve allows the wrench to transition between engaging external and internal hexagonal fasteners by rotating the sleeve to the appropriate position, providing dynamic adaptability.
2Adaptability or versatility
If a multifunction wrench with rotating sleeve is designed, then versatility is improved, but the device complexity increases
Solution Approach 1:
The wrench design nests multiple functional elements within a compact structure. The rotating sleeve contains the gradually-opened face structure, which in turn accommodates the magnetic steel and locking strip. This nested arrangement allows multiple functions to be integrated into a compact form factor without proportionally increasing overall size.
Solution Approach 2:
The gradually-opened face structure acts as an intermediary mechanism between the rotating sleeve and the fastener. This intermediate structure translates the rotational motion of the sleeve into effective engagement with different screw types, facilitating the transition between functions without requiring direct complex mechanisms.
3Reliability
If magnetic steel is added to the sleeve device, then the attachment security is improved, but the manufacturing complexity increases
Solution Approach 1:
The magnetic steel is positioned at specific locations within the sleeve device to optimize magnetic attraction. By carefully selecting the position and dimensions of the magnetic steel, the design achieves strong attachment security while keeping the manufacturing process relatively simple, as the magnetic steel can be inserted as a separate component rather than requiring complex integrated construction.
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
Enhances the wrench's functionality by enabling it to handle various screw types, improving its range of use and ease of operation, while maintaining durability and low manufacturing costs.
Implementation Method 1
magnetic steel sleeves one end of the hexagonal sleeve, so a sleeve device is formed
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A wrench combining a sleeve comprises a wrench (1), a rotating sleeve (2), a locking strip (3), a hexagonal sleeve (4), and magnetic steel (5). The locking strip (3) is mounted at the bottom of the rotating sleeve (2). The hexagonal sleeve (4) is disposed in the rotating sleeve (2). The magnetic steel (5) sleeves one end of the hexagonal sleeve (4), so as to form a sleeve device. The wrench (1) penetrates through the sleeve device. The outline of the external circle of the locking strip (3) is of a gradually-opened surface structure, the rotating sleeve (2) matches the external circle contact surface structure of the locking strip (3) and the gradually-opened surface structure. The magnetic steel (5) absorbs a screw. When the sleeve device slides to a corresponding position on the wrench (1), the fixation or release of the sleeve device is controlled by means of the two gradually-opened surfaces, and therefore, functions of operating a screw or an inner angle screw are achieved, and the functionality of the wrench is effectively improved.