Silty Floating Mud Sampler with Pressure-Driven Closing Mechanism
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Solution Overview
Problem
Existing soil samplers are ineffective in collecting undisturbed samples of floating mud in coastal waterways due to high water content and flowing state, leading to reduced sampling rates and inaccurate sample data.
Innovation Solution
A silty floating mud collection device featuring a drive cylinder, piston, and turning covers that close the sampler barrel openings, utilizing water or air pressure for motive power and maintaining an undisturbed sample state through modular design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional soil samplers are used to collect floating mud samples, then the sampling device structure is simple and easy to manufacture, but the sampling rate is reduced and sample quality is poor due to the flowing state of high water content floating mud
Solution Approach 1:
The sampler is divided into multiple segments including a sampling barrel, closing device, and driving device that can work independently. The closing device is further segmented into a closing plate and driving mechanism, allowing each component to be optimized for its specific function while maintaining overall system simplicity
Solution Approach 2:
The patent employs water pressure or air pressure as the driving force to push the closing plate and seal the sampling barrel openings. This pneumatic/hydraulic approach replaces complex mechanical closing mechanisms, maintaining ease of manufacture while significantly improving sampling rate and sample quality for flowing floating mud
2Device complexity
If traditional soil samplers use direct pressing or hammer pressing sampling manner, then the device structure is simple, but the sampling quality is poor for floating mud with high water content in flowing state
Solution Approach 1:
The patent uses water pressure or air pressure to drive the closing plate to seal the sampling barrel openings during the sampling process. This pneumatic/hydraulic closing mechanism maintains relatively simple device structure while dramatically improving sample quality by effectively sealing floating mud in flowing state, preventing sample loss during retrieval
Solution Approach 2:
The patent changes the sampling manner from mechanical pressing to pressure-driven closing, utilizing the physical properties of water or air pressure to adapt to the high water content floating mud conditions, thereby improving sample quality without significantly increasing device complexity
3Ease of operation
If opening manner sampling devices are used, then the device structure is simple and easy to operate, but sample quality is affected by lifting process especially in deeper water
Solution Approach 1:
The closing device is designed to seal the sampling barrel openings before the sampler is lifted from the water. The pressure-driven closing mechanism activates during the sampling process, preliminarily securing the sample in place before retrieval, thereby preventing sample quality degradation during the lifting process while maintaining ease of operation
Solution Approach 2:
By using water or air pressure to drive the closing plate, the system maintains ease of operation through simple pressure activation while achieving effective sealing of the sampling barrel. This pneumatic/hydraulic approach prevents sample loss during lifting without requiring complex mechanical operation 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
Improves sampling rate and accuracy by keeping the mud sample undisturbed and sealed at different depths, facilitating particle composition analysis and other tests for nautical depth determination.
Implementation Method 1
utilizing water or air pressure for motive power
Implementation Method 2
utilizing water or air pressure for motive power
Data Source
AI summary
A silty floating mud collection device, which includes a drive cylinder, an outer sleeve, a sampler barrel, an lug cover plate, a turning cover, a control ring and a control rod, where the drive cylinder includes a cylinder liner, a piston and a piston rod; the outer sleeve is fixedly connected below the cylinder liner; the sampler barrel is detachably installed inside the outer sleeve; the lug cover plate is fixedly connected to a lower end of the piston rod, and can close an upper-end opening of the sampler barrel; the turning cover is turnably installed at a lower end of the outer sleeve, and can close a lower-end opening of the sampler barrel; the control ring is located below the sampler barrel, and is used to block the turning cover which is in an open state; and an upper end of the control rod is connected to the lug cover plate, and a lower end of the control rod is connected to the control ring.