Pumping Device with Switchable Valve for Mode Transition
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Solution Overview
Problem
Conventional pumping devices require separate devices for sucking and injecting liquids, leading to complex structures and difficulties in cleaning, especially when switching between modes.
Innovation Solution
A pumping device with a barrel, a piston-based pump, and a control valve that allows for quick switching between sucking and draining modes using a one-way mechanism and a ball-cock valve to prevent liquid contamination, eliminating the need for separate devices and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate sucking and injecting devices are used, then the function is reliable, but the device complexity increases
Solution Approach 1:
The pump is designed to perform both sucking and injecting functions using the same device. The pump can switch between sucking mode (where the pump sucks liquid from a container) and injecting mode (where the pump injects liquid into a vehicle), eliminating the need for separate devices while maintaining reliable pumping functionality throughout.
Solution Approach 2:
The invention uses a switchable valve system that dynamically changes the flow path configuration. The valve can switch between different positions to enable sucking mode or injecting mode, allowing the pump to adapt its function based on operational requirements without changing the physical device structure.
2Reliability
If separate sucking and injecting devices are used, then the pumping function is complete, but the ease of operation decreases
Solution Approach 1:
The single pump device performs both sucking and injecting operations, eliminating the need to transfer liquid between separate devices. The user simply operates the same pump in different modes, significantly improving ease of operation while maintaining complete pumping functionality.
Solution Approach 2:
The switchable valve provides quick and easy mode switching through a simple operational mechanism. The valve can be switched between positions to change from sucking mode to injecting mode or vice versa, making the mode change operation simple and rapid without complex procedures.
3Reliability
If the barrel structure is used with switchable channels, then the pumping function is achieved, but the ease of manufacture decreases
Solution Approach 1:
The invention separates the liquid flow path from the pump mechanism. The receiving room and fluid tube form a distinct liquid handling section that can be easily detached and cleaned, while the pump remains separate. This segmentation allows the liquid-contacting parts to be quickly removed for washing without disassembling the pump mechanism.
Solution Approach 2:
The fluid tube and receiving room structure are designed to be easily removable from the pump assembly. The liquid handling components can be extracted and cleaned separately, simplifying the washing process and making maintenance easier without requiring complex disassembly procedures.
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
Enables simple and efficient switching between sucking and draining modes without detaching or replacing components, preventing liquid from entering the pump or control valve, thus improving usability and cleanliness.
Implementation Method 1
The piston has a one-way mechanism. Gas in the first space is able to enter the second space via the one-way mechanism, but gas in the second space is avoided from entering the first space via the one-way mechanism.
Implementation Method 2
The control element is movable between a first position and a second position in the cavity. When the control element is located at the first position, the inlet communicates the ventilation hole instead of the first hole, the second hole, and the outlet... When the control element is located at the second position, the inlet communicates the first hole instead of the ventilation hole, the second hole, and the outlet
Implementation Method 3
The pump includes a cylinder and a piston. The piston is movably arranged in the cylinder. The piston partitions the cylinder into a first space and a second space.
Data Source
AI summary
A pumping device includes a barrel, a pump, and a control valve. The barrel has a gas hole. The pump includes a cylinder and a piston movable in the cylinder. The piston partitions the cylinder into a first space and a second space. Air in the first space is able to enter the second space via a one-way mechanism, but not in reverse. The control valve includes a main body and a control element. The main body has a first hole, a second hole, a ventilation hole, an inlet, and an outlet. The first hole and the second hole communicate the gas hole. The inlet communicates the first space, and the outlet communicates the second space. The control element is movable to make the inlet communicate the first hole or the ventilation hole and to make the outlet communicate the ventilation hole or the second hole.