Pole Hole Soil Sampler With Stabilized Spoon Body

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Solution Overview

Problem

Traditional digging tools for excavating pole holes in complex terrain are inefficient, labor-intensive, and prone to soil splashing due to arm shaking, leading to low efficiency and high labor hours.

Innovation Solution

A pole hole soil sampler with a U-shaped support frame, a rotatable spoon body, and springs to stabilize the spoon body within the frame, allowing for extended length adjustment and preventing soil splashing during excavation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional digging shovels and scoops are used for excavating pole holes, then the tool structure is simple, but the labor intensity is high and excavation efficiency is low

Engineering Contradiction:

Improveexcavation efficiencyVSAvoidtool structure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The spoon body is rotatably provided inside the support frame, with the shovel plate nested on the fixed plate. This nested structure allows multiple functional components to be integrated within a compact framework, improving excavation efficiency while maintaining reasonable structural complexity

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The spoon body can rotate within the support frame and the shovel plate is folded at an angle to the fixed plate, creating dynamic adjustable structures. This allows the tool to adapt to different excavation positions and depths, enhancing productivity without excessive complexity

Inventive Principle:

Principle #15Dynamics

2Length of moving object

If traditional digging tools are used in deep pole holes, then the tool can reach deep positions, but the labor hours are long and efficiency is low

Engineering Contradiction:

Improvesoil sampler lengthVSAvoidlabor hours

Core Design Contradiction:

Length of moving objectVSLoss of time

Solution Approach 1:

The soil sampler is divided into modular components: support frame, spoon body, connecting rods, and shovel plate. The connecting rods can be extended or adjusted to achieve different lengths for different hole depths, reducing the time needed to switch tools for different excavation depths

Inventive Principle:

Principle #1Segmentation

3Force

If arm shaking occurs during soil excavation with traditional tools, then the digging action can be forceful, but soil falls from the inside of pole holes

Engineering Contradiction:

Improvedigging forceVSAvoidsoil falling and splashing

Core Design Contradiction:

ForceVSObject-generated harmful factors

Solution Approach 1:

The support frame with U-shaped structure and connecting rods provides preliminary stabilization to the spoon body before excavation occurs. This prevents excessive arm shaking and soil falling during the digging process, eliminating the harmful effect before it occurs

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

Instead of allowing free movement of the spoon body and correcting soil fall afterward, the invention inverts the approach by constraining the spoon body within the support frame structure, preventing soil fall from the beginning through the stabilizing framework

Inventive Principle:

Principle #13The other way round (Inversion)

4Object-generated harmful factors

If the spoon body is stabilized in the support frame, then soil splashing is prevented, but the structure becomes more complex

Engineering Contradiction:

Improvesoil splashingVSAvoidsupport frame structure

Core Design Contradiction:

Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The spoon body is nested within the support frame structure, with the shovel plate further nested on the fixed plate. This nesting approach prevents soil splashing by containing the spoon body, while maintaining structural simplicity through space-efficient integration of components

Inventive Principle:

Principle #7Nested doll (Nesting)

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

Enhances excavation efficiency, reduces labor intensity, and prevents soil from falling out, making it easier to excavate soil inside and on the inner walls of pole holes.

Implementation Method 1

Springs are provided at a bottom of the spoon body, and two ends of the springs extend to the outside of the spoon body and are connected to the connecting rods

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS20250382768A1Pole Hole Soil Sampler

Publication Date: 2025.12.18 WANG ZHECHUN

AI summary

A pole hole soil sampler, comprising a support frame and a spoon body; the support frame has a U-shaped structure, and the support frame comprises a fixed plate and connecting rods connected to both ends of the fixed plate; a shovel plate is provided on an upper part of the fixed plate along the length direction; the spoon body is rotatably provided inside the support frame; the front end of the spoon body is adapted to a bottom of the fixed plate; connecting pieces are provided in a middle of the front end of the spoon body; connecting holes that cooperate with the connecting pieces are provided in a middle lower part of the fixed plate; springs are provided at a bottom of the spoon body, and two ends of the springs extend to the outside of the spoon body and are connected to the connecting rods.