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Height measurement level gage for building surveying and mapping

A technology of height measurement and leveling instrument, which is applied in the field of architectural surveying and mapping, can solve problems such as leveling shaft clearance shaking, vulnerability to weather conditions, unstable line of sight, etc., and achieve the effect of avoiding contact wear and excessive measurement error

Inactive Publication Date: 2020-01-21
周美花
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a height measuring level for architectural surveying and mapping, which is used to solve the problem that the level in architectural surveying and mapping is generally used outdoors and is easily affected by weather conditions. It causes the shaking of the shaft system gap of the level gauge, making the line of sight very unstable, causing the image in the eyepiece to jump, resulting in a technical problem of large measurement error

Method used

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  • Height measurement level gage for building surveying and mapping
  • Height measurement level gage for building surveying and mapping
  • Height measurement level gage for building surveying and mapping

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Experimental program
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Embodiment 1

[0029] Such as Figure 1-Figure 3 As shown, the present invention provides a kind of height measuring level for building surveying and mapping, and its structure comprises frame 1, eyepiece 2, focusing screw 3, turntable 4, base 5, objective lens 6, and described frame 1 is provided with Control the focusing screw 3 of the eyepiece 2, the turntable 4 is installed on the base 5, the turntable 4 is fixed with a frame 1, and the frame 1 is provided with the eyepiece 2, the objective lens 6, and the focusing screw 3. The outer surface of the turntable 4 is provided with an outer retainer 41 and a connecting base 42, and more than two air holes a are evenly opened on the circumferential surface of the outer retaining ring 41, and a rotating handle is arranged inside the connecting base 42 421. Connect the rotating shaft 422 and the screw rod 423. The connecting rotating shaft 422 is equipped with a detection mechanism. The detection mechanism includes an air hole a, a probe b, a mo...

Embodiment 2

[0031] Such as Figure 5 As shown, more than two air holes a are uniformly opened on the circumferential surface of the outer retainer 41, and the inside of the air hole a has a filter mesh interlayer, the air hole a has double openings, and the inner opening matches the probe The gas sensing end of b can power off the dust particles in the wind through the filter in the interlayer, avoiding the accumulation of dust inside the probe b and the connection efficiency of the signal contact. The upper port of the probe b is open, and the upper opening Collect the gas from the wind hole a, push the built-in signal contact to start the motor c when the gas is increasing, and evenly distribute it on the turntable 4 through the circumference of the wind hole a to expand the wind detection range, The turntable 4 with concentrated wind force concentrates the gas on the air inlet of the probe b through the inner ring, so as to realize a more rapid and effective timely sensing of the wind ...

Embodiment 3

[0033] Such as Figure 4 and Figure 6 As shown, the pusher 61 includes a folding piece 611 and a pulley 612, the folding piece 611 is a horizontal spring type, the pulley 612 is provided with two, and is horizontally opposite, and there are two contact ends of the two pulleys 612. V-shaped incision, the traction structure 62 is composed of a traction bar 621, a push block 622, and a right-angle pull bar 623. The gap left by the horizontal end of the right-angle pull rod 623 is equal to the exposed width of the objective lens 6, and one end of the traction bar 621 passes through the objective lens supporting platform 13 and is fixed on both sides of the outer surface of the objective lens 6. The telescopic length of the right-angle pull rod 622 is the same as that of the objective lens 6. The activity gap is consistent to ensure that the surveying and mapping operation is closed within the effective inward movement range. During the closing process, the pulley 612 contacts th...

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Abstract

The invention discloses a height measurement level gage for building surveying and mapping. The height measurement level gage for building surveying and mapping comprises a machine frame, an eyepiece,a focusing screw, a rotary table, a base and an objective lens. The focusing screw which controls the eyepiece is arranged on the machine frame, the rotary table is installed on the base, the machineframe is fixed to the rotary table, the eyepiece, the objective lens and the focusing screw are arranged on the machine frame, an outer retaining ring and a connecting base are arranged on the outersurface of the rotary table, more than two wind holes are evenly formed in the circumference surface of the retaining ring, and a rotary handle, a connecting rotary shaft and a screw are arranged in the connecting base. Through combined action of the wind holes in combination with a detecting opening, a motor, an output transmission end, a transmission track, a belt pulley, the screw and the connecting rotary shaft, the rotary table capable of detecting wind magnitude in real time can turn off the surveying and mapping work of the leveling gage in time when the wind is strong to avoid excessive measurement errors.

Description

technical field [0001] The invention relates to the field of architectural surveying and mapping, in particular to an elevation measuring level used for architectural surveying and mapping. Background technique [0002] Buildings are composed of foundations, walls, beams, columns, ground and floors, steps and stairs, roofs, doors and windows and other main components. In architectural surveying and mapping, elevation measurement is one of the basic tasks of surveying and mapping topographic maps. The ground elevation must also be measured in engineering and building construction, mainly by using a level instrument for leveling, which is the main method for precise elevation measurement. The level is a commonly used instrument for measuring height difference. Its components include a leveling rod with readings on both red and black sides, a leveling system to keep the level level, a photoelectric aiming mechanism and corresponding shafting, etc. The photoelectric aiming syste...

Claims

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Application Information

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IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 周美花
Owner 周美花
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