Brake Bleed Screw Tool With Quick-Connect Fitting
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Solution Overview
Problem
Conventional brake bleeding tools face challenges due to limited access space around bleed screws and incompatibility with quick connect tools, making the process cumbersome and inefficient.
Innovation Solution
A tool with a hollow central shaft, female quick-connect fitting, and socket wrench, along with a nozzle fitting for fluid communication, allows for easy manipulation and retention of bleed screws, enabling efficient removal of air bubbles and fluid using a quick-connect actuator assembly and check valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional bleed screws with mushroom head fittings are used, then waste line attachment is possible, but quick connect tool compatibility is lost and operation becomes cumbersome
Solution Approach 1:
The bleed screw is designed with a quick connect fitting that integrates multiple functions: it serves as both the fluid connection interface and the tool retention mechanism. The hexagonal recess in the quick connect fitting allows socket wrenches to engage and turn the screw, while the quick connect interface enables rapid attachment and detachment of waste lines, making the single component universally compatible with both tool types.
Solution Approach 2:
The invention merges the traditional mushroom head fitting function with the quick connect fitting into a single integrated component. The quick connect fitting incorporates a hexagonal recess that combines the fluid sealing function with the mechanical engagement function for socket wrenches, eliminating the need for separate fitting types and simplifying the overall structure.
2Ease of operation
If limited access space around bleed screws is considered, then compact tool design is needed, but tool manipulation becomes difficult
Solution Approach 1:
The tool is segmented into distinct functional modules: a socket wrench portion for engaging the hexagonal recess, a quick connect fitting for fluid connection, and a handle for manipulation. This segmentation allows each component to be optimized independently while maintaining overall compactness for confined spaces.
Solution Approach 2:
The design employs a nested structure where the socket wrench engages within the quick connect fitting assembly, and the handle integrates with the fitting body. This nesting reduces the overall tool footprint, allowing the tool to access confined spaces around bleed screws while maintaining all necessary functional elements.
3Productivity
If conventional bleeding process steps are followed, then air removal is achieved, but time consumption increases due to repeated tool manipulation
Solution Approach 1:
The quick connect fitting is pre-configured with the hexagonal recess and sealing surfaces before use. The waste line is pre-attached to the quick connect interface, so when the tool is positioned at the bleed screw, the fluid connection is already established, eliminating the need for sequential attachment steps during the bleeding process.
Solution Approach 2:
The integrated design allows the bleeding action to continue uninterrupted. The socket wrench remains engaged with the hexagonal recess throughout the turning operation, and the quick connect fitting maintains continuous fluid connection, eliminating repeated tool manipulation and maintaining continuous useful action throughout the bleeding process.
Data Source
AI summary
A tool for bleeding brakes includes a primary assembly, a quick-connect actuator assembly, and a nozzle fitting. The primary assembly has a hollow central shaft, a female quick-connect fitting, and a socket wrench at a distal end of the shaft. The quick-connect actuator assembly is in operates the female quick-connect fitting. The nozzle fitting is disposed at a proximal end of the central shaft, is in fluid communication with the socket wrench via the hollow central shaft, and is adapted to receive an end of a brake fluid waste line. The quick-connect fitting receives and retains the bleed screw such that the socket fits around a hex fitting on a bleed screw. The wrench loosens the bleed screw causing fluid to flow through the tool and out the nozzle fitting.