Surveying Tripod Scale Alignment with Rotational Angle Adjustment

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Solution Overview

Problem

Conventional surveying stands are cumbersome and difficult to operate, leading to reduced precision in aligning surveying scales vertically and ensuring they face level gauges accurately, requiring repetitive adjustments and complicating the surveying process.

Innovation Solution

A surveying stand with an annular first pedestal and support legs, featuring a scale fixture that can rotate horizontally and a rotation adjustment device, including a second pedestal leveling device with perpendicular screws and springs, allows for precise vertical alignment and angular adjustment of the scale fixture to face the level gauge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a conventional plate-shaped pedestal is used, then the structure is simple, but the surveying scale cannot be fastened and alignment precision is poor

Engineering Contradiction:
Improvealignment precisionVSAvoidpedestal structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The pedestal is divided into an annular first pedestal and a second pedestal, with the scale fixture separately mounted on the first pedestal and capable of independent rotation. This segmentation allows the alignment function to be separated from the support function, enabling precise angular adjustment without complicating the overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The scale fixture is designed to be rotatable relative to the first pedestal, transforming the static pedestal into a dynamic system. This dynamic capability allows the surveying scale to be precisely oriented toward the level gauge while maintaining structural simplicity through the annular design.

Inventive Principle:
Principle #15Dynamics

2Productivity

If manual holding and observation of air bubble is used, then no additional devices are needed, but the adjustment process is time-consuming and energy-consuming

Engineering Contradiction:
Improveadjustment speedVSAvoidadjustment time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The surveying scale is pre-fastened to the annular first pedestal in a fixed position, eliminating the need for continuous manual holding. The rotation adjustment device allows preliminary positioning followed by secure fastening, significantly reducing adjustment time and energy expenditure while maintaining alignment precision.

Inventive Principle:
Principle #10Preliminary action

3Stability of the object's composition

If the surveying scale is fastened to the pedestal, then vertical stability is improved, but the ability to precisely face the level gauge is compromised

Engineering Contradiction:
Improvevertical stabilityVSAvoidalignment operation ease
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The scale fixture is designed with rotational capability relative to the first pedestal, allowing the surveying scale to be dynamically adjusted to face the level gauge precisely while maintaining vertical stability through the annular pedestal structure and support legs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotation adjustment device acts as an intermediary mechanism between the fastened surveying scale and the desired orientation. It enables precise angular adjustment and positioning without compromising the vertical stability provided by the pedestal structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Measurement precision

If repetitive adjustment processes are used to achieve precise alignment, then alignment precision can be improved, but the operation process becomes complicated

Engineering Contradiction:
Improvealignment precisionVSAvoidoperation process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The surveying scale is pre-positioned and fastened to the annular first pedestal at an initial orientation. The rotation adjustment device then enables a single, direct angular adjustment to achieve precise alignment with the level gauge, eliminating the need for repetitive adjustment cycles and simplifying the operation process.

Inventive Principle:
Principle #10Preliminary action

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 easy and precise adjustment of the surveying scale to a vertical state, ensuring accurate alignment with the level gauge, simplifying the surveying process and improving precision.

Implementation Method 1

a spring arranged between the first pedestal and the scale fixture

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3434957B1Measurement tripod capable of precisely adjusting angle of scale
Publication Date: 2023.10.25 DALIAN SENBIOR SURVEYING INSTR TECH CO LTD
  • EP3434957B1 patent drawingFigure 1
  • EP3434957B1 patent drawingFigure 2
  • EP3434957B1 patent drawingFigure 3~4

AI summary

Provided is a surveying stand capable of precisely adjusting the angle of a scale. The surveying stand comprises an annular first pedestal (1) and support legs (2) connected to the first pedestal (1). A scale fixture (3) is disposed in the first pedestal (1). A scale alignment device is connected to the first pedestal (1). The scale fixture (3) can rotate horizontally relative to the first pedestal (1). A rotation adjustment device capable of adjusting the rotation angle of the scale fixture (3) is arranged between the first pedestal (1) and the scale fixture (3). The surveying stand is easy to operate and is capable of precisely adjusting the angle of the scale.