Hydrogeological Drilling Equipment for Sealed Soil-Water Sampling

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Solution Overview

Problem

Existing hydrogeological detection equipment is limited to single sampling operations, lacks effective sealing methods for water sampling, and suffers from poor controllability and durability of cement blocks, leading to unreliable sealing and sample loss.

Innovation Solution

A multifunctional drilling assembly with a blocking assembly and sealing mechanism using annular rubber sealing rings to prevent water leakage during sampling, combined with a lifting assembly for stable drilling and sampling of both soil and water samples simultaneously.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cement is used for blocking water sampling, then sealing effect is achieved, but controllability of setting time is poor and cement is easily diluted and washed away

Engineering Contradiction:
Improvesealing effectVSAvoidcontrollability of setting time
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent changes the material parameter from cement to quick-setting anaerobic adhesive, which has controllable setting time and resistance to water dilution, resolving the contradiction between achieving sealing effect and controlling setting time precision

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses a disposable blocking component (blocking component with sealing ring) that can be quickly installed and removed, avoiding the need for cement that requires long setting time and is difficult to control, thus improving manufacturing precision while maintaining reliability

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Reliability

If cement block is used for blocking, then sealing is achieved, but it is hard and brittle and often disturbed and destroyed by drilling tool

Engineering Contradiction:
Improveblocking effectVSAvoiddurability against drilling tool
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent changes the material properties from hard and brittle cement to a blocking component with sealing ring made of more durable material that resists disturbance by drilling tools, maintaining blocking effect while improving strength and durability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces a blocking component as an intermediary between the drilling tool and the hole wall, which provides the sealing function while being more resistant to drilling tool disturbance compared to direct cement application

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If separate soil sampling and water sampling operations are performed, then sampling is completed, but application range is small

Engineering Contradiction:
Improvesampling capabilityVSAvoidapplication range
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent combines separate soil sampling and water sampling operations into a single integrated drilling process by using a blocking component that enables simultaneous or sequential sampling of both soil and water, thereby expanding application range while maintaining sampling capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a multi-functional drilling device that can perform both soil sampling and water sampling operations, making the equipment versatile and applicable to a wider range of hydrogeological exploration scenarios

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 simultaneous sampling of water and soil samples with enhanced sealing, ensuring wide application range and preventing groundwater loss during drilling.

Implementation Method 1

sealing mechanism using annular rubber sealing rings to prevent water leakage during sampling

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

lifting assembly for stable drilling and sampling of both soil and water samples simultaneously

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS12428958B2Hydrogeological drilling-type detection equipment
Publication Date: 2025.09.30 QINGHAI 906 ENG SURVEY & DESIGN INST CO LTD
  • US12428958B2 patent drawing
  • US12428958B2 patent drawing
  • US12428958B2 patent drawing

AI summary

Hydrogeological drilling-type detection equipment includes a detection support frame, where the detection support frame is fixedly connected with a detection box body with a through hole, the through hole is communicated with an inside of the detection box body, a drilling box body is arranged inside the through hole, a lifting assembly is arranged inside the detection box body, the drilling box body is slidably connected with the through hole through the lifting assembly, a bottom end of the drilling box body is provided with a multifunctional drilling assembly provided with a blocking assembly, each of four corners of a bottom end of the detection support frame is provided with a moving wheel, the detection support frame is provided with a stable support assembly, the stable support assembly is correspondingly arranged with the moving wheel, and one side of the detection support frame is fixedly connected with an armrest.