Elastic Valve Core for Pump Leakage Drainage
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Solution Overview
Problem
In unmanned aerial vehicle pumps, a leaking liquid medium due to a broken pipe is not discharged in time, leading to corrosion and short circuits, reducing efficiency and service life.
Innovation Solution
A pump body assembly with a drainage outlet and a valve core member that changes from a natural to an elastic deformation state, opening the drainage outlet to discharge liquid and sealing it when not in use, providing waterproof and dustproof effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pump body assembly uses a sealed structure without drainage outlet, then waterproof and dustproof effects are maintained, but liquid medium cannot be discharged timely leading to corrosion and short circuits
Solution Approach 1:
The pump body assembly is segmented into sealed working chambers and a drainage chamber, with the drainage outlet providing a controlled escape path for liquid. The valve core member segments the drainage outlet function into sealing mode and draining mode, allowing the system to simultaneously maintain waterproof integrity during operation and enable liquid discharge when needed.
Solution Approach 2:
The valve core member is designed with elastic deformation characteristics that enable it to automatically respond to liquid pressure changes. When liquid accumulates and presses against the valve body portion, it automatically deforms to open the drainage outlet, and when pressure decreases, it automatically returns to seal the outlet, eliminating the need for external control mechanisms.
2Object-generated harmful factors
If a drainage outlet is always open to discharge liquid, then liquid can be discharged timely, but external water and dust can enter the pump body assembly
Solution Approach 1:
The valve core member transitions from a static sealing component to a dynamic control element that automatically adjusts its position based on internal liquid pressure. The elastic valve body portion deforms dynamically to open or close the drainage outlet, creating a responsive barrier that opens only when liquid pressure forces it open and closes automatically when pressure equalizes, preventing external contaminants from entering.
Solution Approach 2:
The valve core member acts as an intermediary between the sealed pump interior and the external environment. It controls the drainage outlet to allow liquid egress while blocking external water and dust, serving as a selective gate that responds to internal pressure conditions to permit or prevent passage based on the operational state.
3Loss of time
If the valve core member uses a complex control mechanism to open/close drainage outlet, then drainage timing is precise, but device complexity increases
Solution Approach 1:
The valve core member is a self-actuating component that uses the liquid pressure itself as the actuating force. The elastic valve body portion deforms automatically when liquid pressure builds up, opening the drainage outlet without requiring external actuators, sensors, or control systems. When pressure decreases, the elastic material naturally returns to its original shape, closing the outlet automatically.
Solution Approach 2:
The valve core member exploits changes in pressure parameters to control the drainage outlet state. The elastic valve body portion responds to pressure threshold changes by deforming to open or close the outlet, creating a pressure-dependent control mechanism that is simple in structure but effective in timing liquid discharge based on internal pressure conditions.
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 ensures timely drainage of liquid, preventing corrosion and short circuits, improving the pump's efficiency and service life by maintaining a sealed and protected environment.
Implementation Method 1
the valve body portion is elastic, and the valve body portion is changeable from a natural state to an elastic deformation state under an action of liquid in the pump housing
Data Source
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AI summary
A pump body assembly, a pump, a sprinkler system, and an unmanned aerial vehicle are provided. The pump body assembly includes a drainage outlet (1235) on a pump housing (12) and a valve body portion (51) of a valve core member (5). The valve body portion (51) is elastic. The valve body portion (51) changes from a natural state to an elastic deformation state under an action of liquid in the pump housing (12). When the valve body portion (51) is in the natural state, the valve body portion (51) seals the drainage outlet (1235) of the pump housing (12). When the valve body portion (51) is in the elastic deformation state, the valve body portion (51) does not seal the drainage outlet (1235) of the pump housing (12). When a liquid medium leaks due to a broken pipe in a pump body, the liquid medium is discharged from the drainage outlet (1235) via the valve core member (5).