Electronic theodolite capable of being hanged upside down for use

Abstract

The invention relates to an electronic theodolite capable of being hanged upside down for use. A telescope and a first grating disk are freely rotated and supported onto a body through a cross shaft group; a first light source and a first reading head are fixedly arranged on the body and are opposite to the first grating disk; the first reading head is in signal connection with a main board; the main board is connected with a display panel; a second grating disk is arranged on a vertical shaft; a second light source and a second reading head are arranged on a main body of a lower disk and are opposite to the second grating disk; the second reading head is in signal connection with the main board; two bearings are respectively arranged at two ends of the vertical shaft and are separated by a sleeve to form a vertical shaft core which is arranged in a shaft sleeve; one end of the vertical shaft is a T-shaped end; the bearings, the sleeve and the shaft sleeve are combined by a small end of the T-shaped end to form a vertical shaft group through a pressing ring; the vertical shaft is arranged on the body; the shaft sleeve is arranged on the main body of the lower disk; and the main body of the lower disk is connected with a base plate through a spiral mechanism. Due to the improvement on a shaft system, the electronic theodolite can be erected for use or can be hanged upside down for use.

Description

technical field [0001] The invention relates to an electronic theodolite capable of standing upright or hanging upside down for engineering survey. Background technique [0002] At present, upright electronic theodolites are commonly used in engineering construction, buildings, foundations, topography, etc., for point measurement and engineering positioning measurement, but when aerial work, bridges, piers, etc. It is necessary to raise the instrument, and the observer should look up at the instrument. Due to the influence of the tilt direction of the display, the upright electronic theodolite cannot be observed when the instrument is higher than the human eyes. Therefore, the instrument needs to be hung upside down so that the observer can look up and measure. ; At present, all electronic theodolites in the market are upright and used. These theodolites cannot be used directly upside down due to influences such as shafting, display panels, software, compensators, etc., and ...

AI Technical Summary

Problems solved by technology

[0002] At present, upright electronic theodolites are commonly used in engineering construction, buildings, foundations, topography, etc., for point measurement and engineering positioning measurement, but when aerial work, bridges, piers, etc. It is necessary to raise the instrument, and the observer should look up at the instrument. Due to the influence of the tilt direction of the display, the upright electronic theodolite cannot be observed when the instrument is higher than the human eyes. Therefore, the instrument needs to be hung upside down so that the observer can look up and measure. ; At present, all electronic theodolites on the market are upright. These theodolites cannot be used directly upside down due to the influence of shafting, display panels, software, compensators, etc., and cannot meet the needs of specific fields.

[0003] At present, the vertical shaft design of theodolite products is composed of the following parts: vertical shaft, shaft sleeve, ring, steel ball, the steel ball is installed between the vertical shaft and the shaft sleeve as a transmission mechanism, the instrument is installed on the vertical shaft, and the shaft sleeve The main body of the lower plate and the base are connected and fixed, and relying on the gravity of the instrument, the vertical axis presses the steel ball to implement the horizontal rotation of the instrument on the shaft sleeve. The vertical shaft will not be disengaged from the shaft sleeve. Rotate a ring on the vertical shaft. This ring is only to prevent it from falling off. When the instrument is upright, it can work. When it is inverted, the focus of rotation is on the ring, because the ring cannot guarantee the accuracy. , and it may loosen when it is reversed under force, so the instrument cannot be used

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