Ruler and instrument integrated installing frame for leveling

Abstract

The invention discloses a ruler and instrument integrated installing frame for leveling, wherein the ruler and instrument integrated installing frame is simple and convenient to operate and capable ofimproving the installing efficiency and enhancing practicability. A vertical long-strip-shaped ruler base (1) is arranged, and a level instrument installing base (2) and a dragging handle (3) are fixed to the top end of the ruler base (1). The middle portion of the ruler base (1) is rotationally connected with an auxiliary foot stand (5) through a vertical rotation shaft (4). The part, above therotation shaft (4), of the ruler base (1) is provided with a battery bin (6), an electronic handbook bin (7) and an L-shaped level device bin (8), and the part, below the rotation shaft (4), of the ruler base (1) is provided with a vertical handle (9) and a transverse handle (10). Movable trundles (11), a limiting frame (12) and a ruler pad installing base (13) are arranged at the lower portion ofthe ruler base (1).

Description

technical field [0001] The invention belongs to the technical field of geodetic and engineering surveying, and in particular relates to an integrated installation frame for a ruler and instrument for leveling that is easy to operate, improves installation efficiency, and enhances practicability. Background technique [0002] The traditional leveling device is composed of a leveling instrument and two leveling rods. When measuring, first place the two leveling rods on the ground at points A and B respectively, and then set the leveling instrument at the middle position of the two points A and B. In order to ensure the measurement accuracy, the horizontal distance between the leveling device and the two leveling rods is generally required. Equal or approximately equal. Use the horizontal line of sight of the leveling instrument to read the elevation values ​​of the two leveling rods respectively. The difference between the measured elevation values ​​is the level difference b...

AI Technical Summary

Problems solved by technology

Traditional leveling devices and corresponding operating methods have the following disadvantages: (1) Three-point configuration, asynchronous observation, and low measurement efficiency

Because it takes a lot of energy and time for the surveyors to realize the reasonable configuration of the positions between the three points of the leveling instrument and the leveling rod in a complex terrain environment, and at the same time, the asynchronous observation of readings according to the scales respectively increases the observation time, which affects the In addition, when encountering complex terrain environments such as steep slopes, potholes, ponds, ditches, ravines, rivers, and mountainous areas, it is often impossible to set up the level in the middle of the two leveling rods, resulting in the failure of leveling. implement

(2) Single observation system, low measurement reliability

However, the above-mentioned patent application still has the following deficiencies: (1) The tripod, the leveling rod and the auxiliary ruler pad are set separately. After moving the station, they all need to be combined before leveling. Moreover, it will also affect the accuracy of continuous observation, and even damage the leveling rod during the combination process; (2) When using a three-legged tripod, it will form a four-point landing with the leveling rod, which is difficult to balance and stably place; when the ground height difference is large, After raising or lowering the height of the height signal detector (level), the surveyor cannot aim and focus through the eyepiece due to physical factors; after the tripod is installed, the ruler cannot rotate relative to the tripod (ground), straighten and aim. The steps are difficult to coordinate and cannot work

However, during the development and practice of the composite level, it was found that the patent has the following deficiencies: (1) Since the leveling rod of the composite level is generally 3 to 5 meters, in order to carry, transport and store, other units (altitude measuring device, Observation handbook, auxiliary bracket or tripod, level and auxiliary ruler pad) are separated from the leveling staff and reinstalled again when in use

On the one hand, all parts are in a scattered state when disassembled and separated from the leveling staff, which is inconvenient to classify, store and carry; Disassembly, installation and fixing will continue to squeeze and wear the leveling rod, which will directly affect the service life and observation accuracy of the composite leveling instrument (2) The direct connection between the altimeter and the leveling rod will cause the observation height to be unstable; (3) The ruler pad and the leveling The connection design of the scale is unreasonable, which cannot meet the requirements of the compound level to measure the i angle; (4) The connection design of the electronic hand book and the L-shaped level and the level is unreasonable, which is inconvenient to disassemble and easy to wear; (5) Caster wheel design Unreasonable, not only affects the stable placement of the tripod but also causes inconvenience in movement

All in all, from the perspective of surveying, mechanics, and ergonomics, the above-mentioned patent applications cannot meet the practical operability requirements of man-machine integration in leveling measurement

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