CN110595510A - Rotary bar code ruler for calibrating electronic i-angle and sight distance errors of digital level - Google Patents
Rotary bar code ruler for calibrating electronic i-angle and sight distance errors of digital level Download PDFInfo
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- 238000012795 verification Methods 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a rotary bar code ruler for calibrating electronic i-angle and visual distance errors of a digital level, wherein a base is provided with a left adjusting seat and a right adjusting seat, the left adjusting seat and the right adjusting seat are provided with a front adjusting seat and a rear adjusting seat, the front adjusting seat and the rear adjusting seat are provided with an up-down adjusting device, the up-down adjusting device is provided with a leveling seat, a leveling plate is arranged above the leveling seat and is connected with the leveling seat through a leveling bolt, the leveling plate is provided with a driving chamber, the upper end of the driving chamber is provided with a cover plate, the cover plate and the leveling plate are arranged in parallel, a vertically arranged rotating shaft penetrates through the driving chamber, a rotating mechanism is arranged in the driving chamber and drives the rotating shaft to rotate relative to the driving chamber, the cover plate is provided with a ruler seat, the ruler seat is connected with the upper end of the rotating shaft through a connecting key, a. The automatic bar code ruler switching device is simple in structure, convenient to use, small in occupied space and capable of achieving automatic switching of bar code rulers of different manufacturers only by being installed once.
Description
The technical field is as follows:
the invention belongs to the technical field of verification and calibration of digital levels, and particularly relates to a rotary bar code ruler for verifying electronic i-angle and sight distance errors of a digital level.
Background art:
a digital level gauge, also called an electronic level gauge, is a high-precision elevation measurement device, and consists of a host, a bar code ruler and data processing software. The measuring principle is that a horizontal alignment line can be provided in an eyepiece to read the bar code measuring elevation on a bar code ruler at a corresponding position. The i angle error of the electronic level is the collimation axis error, in the measuring process of the electronic level, when the leveling tube axis of the level is parallel to the collimation axis of the telescope in space, the projection on the vertical plane is parallel, if the two axes are not parallel, the projection on the vertical plane is not parallel, the error is caused when leveling measurement is carried out, and the i angle error is the calibration value which is particularly important when the calibration is carried out.
At present, when an electronic i-angle of a digital level is detected, four outdoor methods are mainly adopted for correction:
(1) the method of the Fosterel method: as shown in fig. 1, two scales (A, B) are set at a distance of 45m, the distance is divided into three equal parts, 2 instrument stations (1, 2) are set on the connecting line, the distance is about 15m from the scales, and then the two scales are measured from the instrument stations, and the i angle calculation formula is as follows:
in the formula、、、The readings of the two scales (A, B) observed by the digital level at 1 and 2, respectively, S is the distance per equal division, and ρ is a constant often used in the calculation of the measurement, with a value of about 206265, meaning a "second value corresponding to an arc", i.e. an arc of about 206265 seconds.
(2) The nano-Bakel method: as shown in fig. 2, a distance of 45m is measured, the distance is divided into three equal parts, instruments are arranged on the parts (1 and 2), two rulers (A, B) are arranged at the positions one third away from the two ends, the two rulers are measured from a measuring station, and the calculation formula of the i angle is as follows:
in the formula、、、Are the readings of the two scales (A, B) observed by the digital level at 1, 2 respectively, S being the distance per equal division.
(3) Kukamaoka method: as shown in fig. 3, two scales (A, B) are set up at a distance of about 20m and are read first from station (1) located in the middle of the line between the two scales. Then reading on the two scales from a measuring station (2) at an extension of 20m from the two scales, and calculating the i angle of the two scales by the formula:
in the formula、、、The readings of the two scales (A, B) observed by the digital level at 1 and 2, respectively, and S is the distance between the two scales (A, B).
(4) The Japanese method: as shown in fig. 4, two scales (A, B) are set up at a distance of about 30m, and are read first from station (1) located in the middle of the line between the two scales. The measuring station (2) is arranged at a position about 3m away from the scale (A), and the calculation formula of the i angle is as follows:
in the formula、、、The readings of the two scales (A, B) observed by the digital level at 1 and 2, respectively, and S is the distance between the two scales (A, B).
However, in the verification process, instruments of different manufacturers are often encountered, so that bar code rulers of different manufacturers need to be switched to use, and two problems exist: 1. the bar code ruler needs to be replaced, so that the workload is increased, and the time is wasted. 2. The absolute perpendicularity of the rack must be guaranteed when the bar code scale is installed, but the rack cannot be avoided to be perpendicular when the bar code scale is replaced manually, and meanwhile, care must be taken when the bar code scale is repeatedly installed, and the workload is increased.
The sight distance error of the digital level is the sight line distance measuring error of the digital level, two points with the distance of 10m and 30m are selected in a flat place, a ruler column is respectively arranged, after the digital level to be detected is erected, a level II steel tape is used for accurately measuring the horizontal distance D from a plumb sphere point to the ruler column point0And recording, measuring the horizontal distance from the vertical ball point to the ruler column point by the digital level to be detected for multiple times, and calculating the average value DAre all made ofThen, the line-of-sight distance measurement error of the inspected digital level is DAre all made of- D0However, in practice, it is difficult to accurately set the post at exactly 10m and 30m positions, and therefore the horizontal distance D measured with a class II steel tape measure is0The distances are often impossible to be integers, which gives measurements and calculationsCertain trouble is brought, the measurement error is easy to be larger, and the calibration accuracy is influenced.
The invention content is as follows:
in summary, in order to overcome the defects of the prior art, the invention provides a rotary bar code ruler for calibrating electronic i-angle and visual distance errors of a digital level, which is provided with a regular polygonal ruler column and a base capable of being three-dimensionally adjusted and rotated, bar code rulers of different manufacturers are adhered on each cylindrical surface of the ruler column, and after the bar code ruler is adjusted by a three-dimensional adjusting device in use, the digital level to be calibrated can correspond to the corresponding bar code ruler only by rotating the regular polygonal ruler column.
In order to solve the technical problem, the technical scheme of the invention is realized as follows:
a digital level electron i angle and stadia error examination is with rotatory bar code chi, wherein: comprises a ruler column, a ruler seat, a rotating shaft, a rotating mechanism, a leveling plate, a leveling seat, a base, a left adjusting seat, a right adjusting seat, a front adjusting seat, a rear adjusting seat and an up-down adjusting device, wherein the base is provided with the left adjusting seat and the right adjusting seat, the left adjusting seat and the right adjusting seat are provided with the front adjusting seat and the rear adjusting seat, the front adjusting seat and the rear adjusting seat are provided with the up-down adjusting device, the up-down adjusting device is provided with the leveling seat, the leveling plate is arranged above the leveling seat, the leveling plate is connected with the leveling seat through a leveling bolt, the leveling plate is provided with a driving chamber, the upper end of the driving chamber is provided with a cover plate, the cover plate and the leveling plate are arranged in parallel, the driving chamber is provided with the vertically arranged rotating shaft in a penetrating way, the rotating mechanism is arranged in the driving chamber, the rotating mechanism drives the rotating shaft to rotate relative to the driving, the ruler base is vertically provided with a ruler column, the ruler column is of a regular polygon columnar structure, and a bar code ruler is pasted on each column surface.
The technical scheme of the invention can also be realized as follows: the rotating mechanism comprises a motor, a driving gear and a driven gear, the motor is fixed on the leveling plate and is a stepping motor, the driving gear is arranged on a main shaft of the motor, the driving gear is meshed with the driven gear, and the driven gear is arranged on the rotating shaft.
The technical scheme of the invention can also be realized as follows: the upper and lower adjusting device comprises an adjusting shell, a worm wheel, a worm, a screw and a locking cap, the adjusting shell is arranged on a front adjusting seat and a rear adjusting seat, the worm wheel is arranged in the adjusting shell, a wheel shaft of the worm wheel is connected with the adjusting shell through a bearing and the locking cap, the worm is arranged in the adjusting shell, the worm and the worm wheel are meshed with each other, the wheel shaft of the worm wheel is a hollow wheel shaft, the screw is connected with the inner cavity of the hollow wheel shaft in an internal thread mode, the upper end of the screw is connected with the leveling seat through the bearing, and an upper adjusting handle and a lower adjusting handle are arranged at one end.
The technical scheme of the invention can also be realized as follows: the front and back adjusting seat is of a flat plate structure, the lower end of the front and back adjusting seat is provided with a front and back adjusting sliding block arranged along the front and back direction of the front and back adjusting sliding block, the left and right sides of the front and back adjusting seat are provided with front and back adjusting convex blocks, and the upper end of the front and back adjusting seat is connected with the lower end of an adjusting shell of the up and down adjusting device.
The technical scheme of the invention can also be realized as follows: the left and right adjusting seat is of a flat plate structure, a front and back adjusting sliding groove matched with the front and back adjusting sliding block is formed in the upper end of the left and right adjusting seat, the left and right adjusting sliding block is arranged at the lower end of the left and right adjusting seat in the left and right direction, supporting frames are arranged on the left and right sides of the left and right adjusting seat, a front and back adjusting jackscrew is arranged on each supporting frame and corresponds to a front and back adjusting lug on the front and back adjusting seat, and a left and right adjusting lug is arranged on the front and back sides of the.
The technical scheme of the invention can also be realized as follows: the base be dull and stereotyped structure, the upper end of base be provided with control adjustment slider left and right sides adjustment spout of mutually supporting, the base front and back both sides be provided with the adjustment frame, the adjustment frame on be provided with and control the adjustment jackscrew, control the adjustment jackscrew and control the adjustment lug on the adjustment seat and correspond.
The technical scheme of the invention can also be realized as follows: the leveling plate is of a triangular flat plate structure, leveling bolts are arranged at three corners of the triangular flat plate, and leveling bubbles are arranged on the leveling plate.
The technical scheme of the invention can also be realized as follows: the connecting key is a spline.
The invention has the beneficial effects that:
1. the invention is provided with a regular polygonal ruler column and a base which can be three-dimensionally adjusted and rotated, bar code rulers of different manufacturers are adhered on each cylindrical surface of the ruler column, and when the digital level gauge is used, the digital level gauge to be calibrated corresponds to the corresponding bar code ruler only by rotating the regular polygonal ruler column after being adjusted by a three-dimensional adjusting device.
2. The upper and lower adjusting device realizes the rotation of the worm by rotating the upper and lower adjusting handles, so that the worm wheel and the wheel shaft thereof rotate, the inner cavity of the wheel shaft of the worm wheel is connected with the screw rod through threads, the rotation of the worm wheel enables the screw rod to move up and down along the inner cavity of the wheel shaft of the worm wheel while rotating, the upper end of the screw rod is connected through the bearing, the screw rod pushes the leveling seat to move up and down, meanwhile, the rotation of the screw rod is not transmitted to the leveling seat, the up and down movement of the leveling seat and parts above the leveling seat is realized.
3. The front-back adjusting seat and the left-right adjusting seat are matched with each other through the sliding block and the sliding groove, fine adjustment in the front-back direction and the left-right direction is achieved through the jackscrew, three-dimensional adjustment of the ruler column is achieved through the up-down adjusting device, the front-back adjusting seat and the left-right adjusting seat, adjustment of levelness can be achieved through the arrangement of the leveling plate, due to the fact that the cover plate and the leveling plate are arranged in parallel, the levelness of the cover plate can be guaranteed after leveling adjustment of the leveling plate, the ruler column is arranged on the cover plate, the ruler column is vertically arranged on the ruler seat, vertical arrangement of the ruler column is achieved, repeated installation for achieving the vertical direction of the ruler column is avoided, and verification workload and labor intensity are reduced.
4. The vertical adjusting device, the front and rear adjusting seats and the left and right adjusting seats realize the three-dimensional adjustment of the ruler column, so that the ruler column can be accurately adjusted to the positions of 10m and 30m through three-dimensional adjustment after the ruler column is placed when the sight distance error of the digital level is detected, the structure is accurate during the sight distance error detection, the measuring and calculating troubles are reduced, and the efficiency is improved.
Description of the drawings:
FIG. 1 is a schematic diagram of a scale and instrument station arrangement for the Fragile method;
FIG. 2 is a schematic diagram of a scale and instrument station arrangement for the Naval method;
FIG. 3 is a schematic diagram of a scale and instrument station arrangement for the Cukamaoka method;
FIG. 4 is a schematic diagram of a scale and instrument station arrangement for the Japanese method;
FIG. 5 is a schematic structural view of the present invention;
FIG. 6 is a schematic cross-sectional view A-A of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic structural view of the leveling seat and the components above the same according to the present invention;
fig. 8 is a schematic top view of fig. 7 according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 5, 6, 7 and 8, a rotary bar code ruler for calibrating electronic i-angle and sight distance errors of a digital level comprises a ruler column 1, a ruler base 2, a rotating shaft 3, a rotating mechanism, a leveling plate 4, a leveling base 5, a rotating shaft 3, a base 6, a left-right adjusting base 7, a front-back adjusting base 8 and a vertical adjusting device, wherein the base 6 is of a square flat plate structure, a left-right adjusting sliding groove is arranged at the upper end of the base 6 along the left-right direction of the base, adjusting frames 26 are arranged at the front side and the back side of the base 6, a left-right adjusting jackscrew 27 is arranged on each adjusting frame 26, a left-right adjusting base 7 is arranged on the base 6, the left-right adjusting base 7 is of a square flat plate structure, a left-right adjusting sliding block 22 is arranged at the lower end of the left-right adjusting sliding groove, the left-right adjusting sliding block 22 is, the upper end of the left and right adjusting seat 7 is provided with a front and back adjusting sliding groove arranged along the front and back direction, the left and right sides of the left and right adjusting seat 7 are provided with a supporting frame 23, a front and back adjusting jackscrew 24 is arranged on the supporting frame 23, a left and right adjusting lug 25 is arranged on the front and back sides of the left and right adjusting seat 7, the left and right adjusting lug 25 corresponds to a left and right adjusting jackscrew 27 on the base 6, a front and back adjusting seat 8 is arranged on the left and right adjusting seat 7, the front and back adjusting seat 8 is a square flat plate structure, the lower end of the front and back adjusting slide block is provided with a front and back adjusting slide block 20 arranged along the front and back direction, the left and right sides are provided with a front and back adjusting lug 21, the front-back adjusting lug 21 corresponds to the front-back adjusting jackscrew 24 on the left-right adjusting seat 7, the upper end of the front and rear adjusting seat 8 is connected with the lower end of an adjusting shell 14 of the vertical adjusting device. The up-down adjusting device comprises an adjusting shell 14, a worm wheel 15, a worm 16, a screw 17 and a lock cap 18, wherein the adjusting shell 14 is arranged on a front adjusting seat 8 and a rear adjusting seat 8, the worm wheel 15 is arranged in the adjusting shell 14, a wheel shaft of the worm wheel 15 is connected with the adjusting shell 14 through a bearing and the lock cap 18, the worm 16 is arranged in the adjusting shell 14, the worm 16 is meshed with the worm wheel 15, the wheel shaft of the worm wheel 15 is a hollow wheel shaft, the screw 17 is connected with the inner cavity of the hollow wheel shaft in a threaded manner, the upper end of the screw 17 is connected with the leveling seat 5 through the bearing, and an up-down adjusting handle 19 is arranged at one end of the worm 16, which is. The upper and lower adjusting device is provided with a leveling seat 5, a leveling plate 4 is arranged above the leveling seat 5, the leveling plate 4 is connected with the leveling seat 5 through a leveling bolt 28, the leveling plate 4 is provided with a driving chamber 9, the upper end of the driving chamber 9 is provided with a cover plate 10, the cover plate 10 is arranged in parallel with the leveling plate 4, the driving chamber 9 is provided with a vertically arranged rotating shaft 3 in a penetrating manner, the driving chamber 9 is internally provided with a rotating mechanism, the rotating mechanism drives the rotating shaft 3 to rotate relative to the driving chamber 9, the rotating mechanism comprises a motor 11, a driving gear 12 and a driven gear 13, the motor 11 is fixed on the leveling plate 4, the motor 11 is a stepping motor 11, a driving gear 12 is arranged on a main shaft of the motor 11, the driving gear 12 is mutually meshed with the driven gear 13, and the driven gear 13 is arranged on the rotating shaft 3, the cover plate 10 on be provided with ruler base 2, ruler base 2 pass through the connecting key with the upper end of pivot 3 and be connected, the connecting key is the spline, ruler base 2 on be provided with chi post 1 perpendicularly, chi post 1 be regular hexagon column structure, all paste on its every cylinder and have the bar code chi.
When the digital level is used, when an electronic i-angle of the digital level is detected, the digital level is placed at a staff position, then the left and right adjusting jackscrews 27 are operated to adjust the left and right positions of the ruler column 1, the front and back adjusting jackscrews 24 are operated to adjust the front and back positions of the ruler column 1, then the upper and lower adjusting handles 19 are operated to rotate the worm 16, the worm 16 drives the worm wheel 15 to rotate, so that the wheel shaft of the worm wheel 15 rotates, the screw rod 17 drives the screw rod 17 to rotate, the screw rod 17 moves up and down along the inner cavity of the wheel shaft of the worm wheel 15 simultaneously, so that the upper and lower positions of the leveling seat 5 are adjusted, the center of the ruler column 1 is positioned in the visual field of the lens of the digital level through front and back, left and right and up and down three-dimensional adjustment, then the leveling bolt 28 is operated, so that the air bubbles in the leveling air bubbles 29 on the leveling plate 4 are positioned at the center position, the, the cover plate 10 is provided with a ruler base 2, and the ruler columns 1 are vertically arranged on the ruler base 2, so that the vertical arrangement of the ruler columns 1 is guaranteed, and the adjustment preparation before the electronic i-angle verification of the digital level is completed. And operating the digital level to be calibrated to verify the electronic i angle of the digital level.
When the electronic i angle of the digital level of different manufacturers needs to be checked, the motor 11 is started, the motor 11 drives the rotating shaft 3 to rotate through the driving gear 12 and the driven gear 13, and under the action of the connecting key, the rotating shaft 3 drives the ruler base 2 and the ruler column 1 to rotate, so that the bar code ruler corresponding to the digital level to be calibrated is aligned with the digital level. Therefore, different bar code rulers are only needed to be pasted on the cylindrical surface of the ruler column 1, and the motor 11 is operated, so that the method can be realized.
In practical use, the motor 11 can be provided with a zigbee wireless controller, and the rotation of the stepping motor 11 is controlled based on zigbee.
When the sight distance error of the digital level needs to be checked, two invention are respectively placed at the positions of 10m and 30m away from the digital level to be checked, then the left and right positions of the ruler column 1 are adjusted by operating the left and right adjusting jackscrews 27 with the help of a II-grade steel tape, the front and back positions of the ruler column 1 are adjusted by operating the front and back adjusting jackscrews 24, the ruler column 1 is accurately adjusted to the positions of 10m and 30m away from the digital level to be checked, the sight line distance measuring error of the digital level is checked according to the checking regulation of the digital level, and at the moment, the horizontal distance D from the plumb sphere point of the instrument measured by the II-grade steel tape to the ruler column point0Equal to 10m and 30 m.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solutions of the present invention, and that equivalent substitutions or other modifications made by those skilled in the art according to the prior art are intended to be included within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a digital level appearance electron i angle and stadia error are examined and determine and are used rotatory bar code chi which characterized in that: comprises a ruler column (1), a ruler seat (2), a rotating shaft (3), a rotating mechanism, a leveling plate (4), a leveling seat (5), a base (6), a left and right adjusting seat (7), a front and back adjusting seat (8) and an upper and lower adjusting device, wherein the base (6) is provided with the left and right adjusting seat (7), the left and right adjusting seat (7) is provided with the front and back adjusting seat (8), the front and back adjusting seat (8) is provided with the upper and lower adjusting device, the upper and lower adjusting device is provided with the leveling seat (5), the leveling plate (4) is arranged above the leveling seat (5), the leveling plate (4) is connected with the leveling seat (5) through a leveling bolt (28), the leveling plate (4) is provided with a driving chamber (9), the upper end of the driving chamber (9) is provided with a cover plate (10), and the cover plate (10) is arranged in parallel with the leveling plate (4), drive chamber (9) on wear to be equipped with pivot (3) of vertical setting, drive chamber (9) in be provided with rotary mechanism, rotary mechanism drive pivot (3) relative drive chamber (9) rotate, apron (10) on be provided with chi seat (2), the upper end of chi seat (2) and pivot (3) through the key-type connection, chi seat (2) on be provided with chi post (1) perpendicularly, chi post (1) be regular polygon column structure, all paste on its every cylinder and have the bar code chi.
2. The rotary barcode ruler for electronic i-angle and sight distance error verification of a digital level according to claim 1, wherein: the rotating mechanism comprises a motor (11), a driving gear (12) and a driven gear (13), the motor (11) is fixed on the leveling plate (4), the motor (11) is a stepping motor (11), the driving gear (12) is arranged on a main shaft of the motor (11), the driving gear (12) is meshed with the driven gear (13), and the driven gear (13) is arranged on the rotating shaft (3).
3. The rotary barcode ruler for electronic i-angle and sight distance error verification of a digital level according to claim 1, wherein: the up-down adjusting device comprises an adjusting shell (14), a worm wheel (15), a worm (16), a screw rod (17) and a locking cap (18), wherein the adjusting shell (14) is arranged on a front adjusting seat and a rear adjusting seat (8), the worm wheel (15) is arranged in the adjusting shell (14), a wheel shaft of the worm wheel (15) is connected with the adjusting shell (14) through a bearing and the locking cap (18), the worm (16) is arranged in the adjusting shell (14), the worm (16) is meshed with the worm wheel (15), the wheel shaft of the worm wheel (15) is a hollow wheel shaft, the screw rod (17) is connected with an inner cavity of the hollow wheel shaft in a threaded mode, the upper end of the screw rod (17) is connected with the leveling seat (5) through the bearing, and an up-down adjusting handle (19) is arranged at one end, located outside the adjusting shell (14).
4. The rotary barcode ruler for electronic i-angle and sight distance error verification of a digital level according to claim 1, wherein: the front and back adjusting seat (8) is of a flat plate structure, a front and back adjusting sliding block (20) arranged along the front and back direction of the front and back adjusting seat is arranged at the lower end of the front and back adjusting seat, front and back adjusting convex blocks (21) are arranged at the left and right sides of the front and back adjusting seat, and the upper end of the front and back adjusting seat (8) is connected with the lower end of an adjusting shell (14) of the up and down adjusting.
5. The rotary barcode ruler for electronic i-angle and sight distance error verification of a digital level according to claim 1, wherein: the left and right adjusting seat (7) is of a flat plate structure, a front and rear adjusting sliding groove matched with the front and rear adjusting sliding block (20) is formed in the upper end of the left and right adjusting seat, a left and right adjusting sliding block (22) is arranged at the lower end of the left and right adjusting seat (7) in the left and right direction, supporting frames (23) are arranged on the left and right sides of the left and right adjusting seat (7), a front and rear adjusting jackscrew (24) is arranged on each supporting frame (23), the front and rear adjusting jackscrew (24) corresponds to the front and rear adjusting lug (21) on the front and rear adjusting seat (8), and left and right adjusting lugs (25) are arranged on the front and.
6. The rotary barcode ruler for electronic i-angle and sight distance error verification of a digital level according to claim 1, wherein: base (6) be dull and stereotyped structure, the upper end of base (6) be provided with control adjustment slider (22) left and right sides adjustment spout of mutually supporting about, base (6) around both sides be provided with adjustment frame (26), adjustment frame (26) on be provided with about adjust jackscrew (27), about adjust jackscrew (27) with about adjust about on seat (7) adjust lug (25) correspond.
7. The rotary barcode ruler for electronic i-angle and sight distance error verification of a digital level according to claim 1, wherein: the leveling plate (4) is of a triangular flat plate structure, leveling bolts (28) are arranged at three corners of the triangular flat plate, and leveling air bubbles (29) are arranged on the leveling plate (4).
8. The rotary barcode ruler for electronic i-angle and sight distance error verification of a digital level according to claim 1, wherein: the connecting key is a spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910956826.8A CN110595510B (en) | 2019-10-10 | 2019-10-10 | Digital level electronic angle and visual range error detecting rotary bar code ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910956826.8A CN110595510B (en) | 2019-10-10 | 2019-10-10 | Digital level electronic angle and visual range error detecting rotary bar code ruler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110595510A true CN110595510A (en) | 2019-12-20 |
| CN110595510B CN110595510B (en) | 2024-03-15 |
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