Brake Oil Drain Wrench Assembly for Confined-Space Bleeding
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Solution Overview
Problem
Conventional oil drain tools for vehicle brakes face difficulties in operating within limited spaces due to their extended axial distance and fixed angle, making it hard to discharge used brake oil efficiently.
Innovation Solution
An oil drain combination featuring a ratchet wrench with a draining assembly that includes a coupling shaft, fitting member, and fixing member, allowing for adjustable angle and reduced axial distance, enabling operation in confined spaces and smooth discharge of used brake oils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conventional drain tool uses a linearly extended fitting sleeve and coupling member, then the connection between wrench and discharge conduit is achieved, but the axial distance increases making operation in limited space difficult
Solution Approach 1:
The patent applies the dynamics principle by making the coupling shaft rotatable relative to the wrench, allowing the work segment to adjust its angle dynamically. This enables the tool to adapt to different spatial configurations and operate effectively in limited spaces where fixed-angle tools would fail.
Solution Approach 2:
The patent transitions from a one-dimensional linear arrangement to a multi-dimensional configuration by introducing rotational freedom. The coupling shaft can rotate to change the angle between the wrench and discharge conduit, adding angular dimensionality to the tool's operation capability.
2Adaptability or versatility
If the conventional drain tool has a fixed linear configuration, then the structure is simple, but the adaptability to different discharge angles is poor
Solution Approach 1:
The coupling shaft is designed with rotational freedom, transforming the static linear structure into a dynamic articulated structure. This allows the tool to adapt to various discharge angles while maintaining reasonable structural simplicity through the use of a single rotational degree of freedom.
3Productivity
If the discharge hose is constrained by a fixed tool structure, then the tool structure is stable, but the hose cannot extend freely causing difficult oil discharge
Solution Approach 1:
The rotatable coupling shaft enables the discharge hose to follow the rotational movement, allowing free extension in different directions. This dynamic configuration eliminates constraints on hose extension and facilitates smooth brake oil discharge.
Data Source
AI summary
An oil drain combination for a brake contains: a wrench and a draining assembly. The wrench is a ratchet wrench. The draining assembly is connected in the wrench and includes a coupling shaft, a fitting member, a first joining tube, and a fixing member. The fitting member is rotatably accommodated in a drive head of the wrench. An axial line of the fixing member extends from the first segment of the fixing member to a second segment of the fixing member and insects with a central line of the coupling shaft perpendicularly. The first joining tube has an accommodation orifice and an axial orifice. The coupling shaft has a blind orifice and multiple radial orifices. The fixing member has a first connection hole communicating with a second connection hole.