Surveying Stand Rotation and Leveling for Precise Staff Alignment
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Solution Overview
Problem
Conventional surveying stands are inefficient in ensuring precise vertical alignment and facing of surveying staffs towards level gauges, leading to reduced surveying precision and increased operational complexity.
Innovation Solution
A surveying stand with an annular first pedestal, support legs, and a staff fixture that can rotate horizontally, featuring a rotation adjustment device with a second pedestal leveling system using perpendicular screws and springs, allowing for precise adjustment of the staff's angle to face the level gauge accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional plate-shaped pedestal is used, then the structure is simple, but the surveying staff cannot be fastened and vertical alignment precision is poor
Solution Approach 1:
The pedestal is divided into an annular first pedestal and a second pedestal, with the staff fixture separately positioned. This segmentation allows the first pedestal to provide structural support while the second pedestal enables precise vertical adjustment through leveling screws, thereby improving vertical alignment precision without compromising overall structural simplicity.
Solution Approach 2:
A staff fixture is introduced as an intermediary component between the surveying staff and the pedestals. This fixture includes a clamping mechanism that securely fastens the staff while allowing precise angular adjustment, thus achieving both firm fastening and high vertical alignment precision.
2Measurement precision
If manual holding and spirit level observation is used, then the device structure is simple, but time and energy are wasted and precise alignment is difficult to ensure
Solution Approach 1:
The surveying stand incorporates a self-leveling mechanism with two mutually perpendicular leveling screws that enable the staff fixture to automatically achieve vertical alignment. This eliminates the need for manual holding and spirit level observation, significantly reducing adjustment time while ensuring precise vertical alignment through the built-in leveling capability.
3Measurement precision
If the staff is adjusted to vertical state, then vertical alignment is achieved, but the staff fails to precisely face the level gauge requiring repeated adjustment processes
Solution Approach 1:
The staff fixture is designed with rotational capability around the vertical axis, transforming the static pedestal into a dynamic adjustment system. This allows the fixture to be rotated to precisely face the level gauge after vertical alignment is achieved, eliminating the need for repeated adjustment processes while maintaining operational simplicity.
4Measurement precision
If fastening screws are finely adjusted for vertical precision, then vertical alignment is improved, but the operation process becomes complicated
Solution Approach 1:
The vertical adjustment function is extracted and integrated into the pedestal structure through built-in leveling screws, while the rotational facing function is separated into the staff fixture. This functional separation allows each component to be optimized independently, simplifying the overall operation process while maintaining high vertical precision through the dedicated leveling mechanism.
Data Source
AI summary
Provided is a surveying stand capable of precisely adjusting the angle of a staff. The surveying stand comprises an annular first pedestal (1) and support legs (2) connected to the first pedestal (1). A staff fixture (3) is disposed in the first pedestal (1). A staff alignment device is connected to the first pedestal (1). The staff fixture (3) can rotate horizontally relative to the first pedestal (1). A rotation adjustment device capable of adjusting the rotation angle of the staff fixture (3) is arranged between the first pedestal (1) and the staff fixture (3). The surveying stand is easy to operate and is capable of precisely adjusting the angle of the staff.