Oil Suction Pump Cap Structure for Dual-Mode Airflow Control
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Solution Overview
Problem
Conventional oil suction pumps have a complicated structure and high manufacturing costs due to their reliance on manual or pneumatic operation through a complex air conduit system.
Innovation Solution
The design includes an oil storage cylinder, a pumping mechanism with a drive rod, pressure relief valve, and a cap with one-way valve assemblies and air conduits, allowing for both manual and pneumatic operation while minimizing complexity and cost through the use of springs, orifices, and buoyant close elements to manage air flow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional manual or pneumatic operation methods are used with complex air conduit systems, then the oil suction pump can operate, but the structure becomes complicated and manufacturing cost increases
Solution Approach 1:
The patent combines the manual operation lever and pneumatic air conduit inlet into a single integrated cap structure. The cap receives both the operation lever for manual pumping and the air conduit inlet for pneumatic operation, merging two separate control systems into one unified component. This reduces the overall number of parts and simplifies the structural arrangement while maintaining both operational modes.
Solution Approach 2:
The cap is designed as a multi-functional component that simultaneously serves as the housing for the operation lever mechanism and the reception point for the air conduit inlet. This universal design allows the same component to fulfill multiple functions: structural support, manual operation interface, and pneumatic connection point, thereby reducing the need for separate dedicated components for each function.
2Ease of operation
If conventional manual or pneumatic operation methods are used with complex air conduit systems, then the oil suction pump can operate, but manufacturing cost increases
Solution Approach 1:
By merging the manual operation mechanism and pneumatic connection into a single cap assembly, the patent reduces the total number of parts that need to be manufactured and assembled. This consolidation lowers manufacturing complexity and reduces assembly steps, directly contributing to lower production costs while maintaining both manual and pneumatic operational capabilities.
Solution Approach 2:
The multi-functional cap design reduces the bill of materials by eliminating the need for separate housings or mounting structures for the operation lever and air conduit connection. This universal component approach reduces material costs, manufacturing overhead, and inventory requirements, thereby lowering overall manufacturing costs while providing versatile operation options.
3Adaptability or versatility
If multiple air conduits and valve assemblies are used to enable both manual and pneumatic operation, then operational versatility is improved, but device complexity increases
Solution Approach 1:
The patent employs one-way valve assemblies that dynamically control air flow direction based on the operational mode. The valves automatically open or close depending on whether manual or pneumatic operation is active, enabling the system to adapt its internal air flow paths dynamically without requiring complex manual switching mechanisms or multiple permanently open conduits.
Solution Approach 2:
The one-way valve assemblies automatically regulate air flow based on pressure differential and operational mode without requiring external control. When pneumatic operation occurs, the valves self-adjust to allow air in through the air conduit inlet and prevent backflow, eliminating the need for complex control systems or manually operated switches, thereby reducing complexity while maintaining versatility.
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 solution enables efficient manual and pneumatic oil pumping with reduced complexity and cost, ensuring airtight operations and preventing air leakage, thus enhancing the operational efficiency and cost-effectiveness of the oil suction pump.
Implementation Method 1
the first air conduit has a first close element moving upward by ways of a buoyant force so as to close the multiple first orifice; the second air conduit has a second close element moving upward by ways of the buoyant force so as to close the multiple second orifice
Data Source
AI summary
An oil suction pump contains: an oil storage cylinder, a pumping mechanism, and a cap. The pumping mechanism includes a body, a drive rod, a plug, and a pressure relief valve. The cap is disposed on the body and the oil storage cylinder, and the cap includes a connector. The drive rod has a press lever, the cap further includes a first air conduit, a first one-way valve assembly, and a second air conduit. The second air conduit has an inlet segment, an outlet opposite to the inlet segment, and a pump segment defined between the inlet segment and the outlet segment and communicating with the oil storage cylinder. The cap further includes a second one-way valve assembly accommodated in the oil storage cylinder and connected with the pump segment, and the second conduit accommodates a pressure reducing valve.