CN109405797B

CN109405797B - Level gauge convenient for adjusting angle i

Info

Publication number: CN109405797B
Application number: CN201811464384.7A
Authority: CN
Inventors: 刘雁春; 刘尧; 王海亭; 吴祥华; 李玉兰; 柳志
Original assignee: Dalian Senbior Surveying Instrument Technology Co ltd
Current assignee: Dalian Senbior Surveying Instrument Technology Co ltd
Priority date: 2018-12-03
Filing date: 2018-12-03
Publication date: 2024-01-09
Anticipated expiration: 2038-12-03
Also published as: CN109405797A

Abstract

The invention discloses a leveling instrument convenient for adjusting an angle i, which is provided with a shell, wherein an objective lens, a focusing lens, an automatic horizontal vision compensator, a spectroscope, a cross wire reticle, an eyepiece and an electronic reader are arranged in the shell, a display control terminal and a leveling instrument are also arranged on the shell, a cuboid hollow base frame is horizontally arranged between the focusing lens and the spectroscope in the shell, the front end and the rear end of the cuboid hollow base frame are respectively positioned at two sides of an axis of the shell, the front end of the cuboid hollow base frame is provided with a left vertical plate and a right vertical plate, the rear end of the cuboid hollow base frame is provided with an upper transverse plate and a lower transverse plate, a cuboid bracket with the same central line is arranged in the cuboid hollow base frame, the front end of the cuboid bracket is rotatably connected with rotating shafts of which the two ends are respectively fixed on the left vertical plate and the right vertical plate, the upper surface of the rear end of the cuboid bracket is connected with an adjusting screw of an upper transverse plate in a threaded connection mode, the lower surface of the rear end of the cuboid bracket is supported by a spring fixed on the lower transverse plate, and the automatic horizontal vision compensator is fixed in the cuboid bracket.

Description

Level gauge convenient for adjusting angle i

Technical Field

The invention relates to a leveling device in the field of geodetic and engineering measurement, in particular to a leveling instrument capable of conveniently adjusting an angle i.

Background

The prior leveling device consists of a level gauge and two leveling staff. The level consists of an objective lens, a focusing lens, a horizontal vision automatic compensator, a spectroscope, a cross wire reticle, an ocular, an electronic reader and a display control terminal. When in measurement, two leveling staff are vertically arranged at A, B two points on the ground, then the leveling instrument is arranged at the middle position of the A, B two points, the elevation values of the two leveling staff are respectively read by utilizing the horizontal sight line provided by the leveling instrument telescope sighting axis (namely the connecting line of the cross wire intersection point and the objective optical center), the difference of the measured elevation values is the leveling elevation difference of the two points on the ground A, B, and if the elevation of one point is known, the elevation of the other point can be calculated by the elevation difference. Due to the influence of factors such as instrument manufacturing process and atmospheric environment, an included angle exists between the telescope collimation axis and the horizontal plane during observation, and the measurement field is commonly called as an angle i. The size of the angle i directly influences the precision, stability and reliability of leveling measurement, and in order to ensure the leveling measurement precision at present, the national standard requires that the angle i is measured and adjusted before leveling measurement every day, so that the angle i of the leveling instrument is smaller than the leveling measurement grade limit difference (Chinese standard: I and II leveling measurement angle i limit difference is 15 seconds; and I limit difference of three and four leveling measurement angles is 20 seconds). The existing leveling instrument has the following problems in adjusting the angle i: (1) For the optical level, the method for adjusting the angle i of the level is to directly adjust the vertical position of the cross wire plate up and down, the adjusting capability is limited, and when the angle i is large, a professional must return to the factory to readjust the horizontal vision automatic compensator, so that the working efficiency of a user is affected. (2) For the electronic level, two angles i of optics and electronics exist, if only the angle i of electronics is measured and adjusted, the cross wire plate cross wire is not matched with the transverse reading standard of the electronic reader, so that the standard and focusing of the electronic level are affected, and meanwhile, the traditional optical manual reading cannot be normally carried out; if the electronic reading is required to be consistent with the traditional optical manual reading, the optical i angle measurement and adjustment are required, and the electronic i angle measurement and adjustment are also required, so that time and labor are wasted, and the working efficiency is reduced.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides a level gauge convenient for adjusting an angle i.

The technical scheme of the invention is as follows: the utility model provides a conveniently adjust level of i angle, is equipped with the casing, is equipped with objective, focusing lens, automatic level sight compensator, spectroscope, cross wire reticle, eyepiece and electronic reader in the casing, still is equipped with on the casing and shows accuse terminal and water level ware, has the hollow bed frame of cuboid horizontally between focusing lens and spectroscope in the casing, both ends are located the casing axis both sides respectively around the hollow bed frame of cuboid, and the hollow bed frame front end of cuboid is equipped with left riser and right riser, and the hollow bed frame rear end of cuboid is equipped with diaphragm and lower diaphragm, has the cuboid bracket of same central line at the hollow bed frame of cuboid built-in, and cuboid bracket front end and both ends are fixed in the pivot rotation phase on left riser and the right riser respectively and meet, and the adjusting screw phase of last diaphragm in threaded connection above the cuboid bracket rear end is supported by the spring that is fixed in the diaphragm down below the cuboid bracket rear end, automatic level sight compensator is fixed in the cuboid bracket.

According to the invention, the horizontal vision automatic compensator position adjusting device is arranged in the middle of the leveling instrument shell, the traditional light path tail end adjustment is changed into the light path middle end adjustment, the adjustment is convenient, the requirement of simultaneously adjusting the optical angle i and the electronic angle i can be met, the angle i adjusting step in the prior art is simplified, the angle i adjusting amplitude is increased, and the field adjusting capability of a measurer and the leveling work efficiency are improved.

Drawings

FIG. 1 is a schematic view of the appearance of a level according to an embodiment of the present invention.

FIG. 2 is a schematic view of a level structure according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a compensator position adjusting apparatus according to an embodiment of the present invention.

Detailed Description

Examples:

the leveling instrument convenient for adjusting the angle i is shown in figures 1, 2 and 3: the device is the same as the prior art, and has a casing 1, wherein an objective lens 2, a focusing lens 3, an automatic horizontal vision compensator 4, a spectroscope 5, a cross wire reticle 6, an eyepiece 7 and an electronic reader 8 (namely a CCD image decoding reading device matched with an encoding levelling rod) are arranged in the casing 1, and a display control terminal 9 and a level 10 are also arranged on the casing 1, which is different from the prior art in that: a cuboid hollow base frame 11 is horizontally and horizontally arranged between a focusing lens 3 and a spectroscope 5 in a shell 1, the front end and the rear end of the cuboid hollow base frame 11 are respectively positioned on two sides of the axis of the shell 1, a left vertical plate 11-1 and a right vertical plate 11-2 are arranged at the front end of the cuboid hollow base frame 11, an upper horizontal plate 11-3 and a lower horizontal plate 11-4 are arranged at the rear end of the cuboid hollow base frame 11, a cuboid bracket 12 with the same central line is arranged in the cuboid hollow base frame 11, the front end and two ends of the cuboid bracket 12 are respectively fixed on a rotating shaft 13 on the left vertical plate 11-1 and the right vertical plate 11-2 in a rotating mode, the upper surface of the rear end of the cuboid bracket 12 is connected with an adjusting screw 14 of the upper horizontal plate 11-3 in a threaded mode, the lower surface of the rear end of the cuboid bracket 12 is supported by a spring 15 fixed on the lower horizontal line compensator 4 is fixed in the cuboid bracket 12.

The working process comprises the following steps:

(1) Measuring the angle i according to the current method;

(2) According to the measurement result, the vertical inclination angle of the bracket 12 (namely the automatic horizontal vision compensator 4) can be adjusted through the adjusting screw 14 and the spring 15, so that the size of the angle i meets the requirement of measurement standard.

Claims

1. The utility model provides a conveniently adjust level of i angle, is equipped with casing (1), is equipped with objective (2), focusing lens (3), automatic level sight line compensator (4), spectroscope (5), cross silk reticle (6), eyepiece (7) and electronic reading ware (8) in casing (1), still is equipped with on casing (1) and shows accuse terminal (9) and spirit level (10), its characterized in that: a cuboid hollow base frame (11) is horizontally arranged between a focusing lens (3) and a spectroscope (5) in a shell (1), the front end and the rear end of the cuboid hollow base frame (11) are respectively located at two sides of an axis of the shell (1), a left vertical plate (11-1) and a right vertical plate (11-2) are arranged at the front end of the cuboid hollow base frame (11), an upper transverse plate (11-3) and a lower transverse plate (11-4) are arranged at the rear end of the cuboid hollow base frame (11), a cuboid bracket (12) with the same central line is arranged in the cuboid hollow base frame (11), the front end and two ends of the cuboid bracket (12) are respectively fixed on rotating shafts (13) on the left vertical plate (11-1) and the right vertical plate (11-2) in a rotating mode, the upper surface of the rear end of the cuboid bracket (12) is connected with adjusting screws (14) which are connected with the upper transverse plate (11-3) in a threaded mode, the lower surface of the rear end of the cuboid bracket (12) is supported by springs (15) which are fixed on the lower transverse plate (11-4), and the automatic horizontal compensator (4) is fixed in the cuboid bracket (12).