CN209214486U - A kind of high tool of section survey based on rail level - Google Patents
A kind of high tool of section survey based on rail level Download PDFInfo
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- CN209214486U CN209214486U CN201920003082.3U CN201920003082U CN209214486U CN 209214486 U CN209214486 U CN 209214486U CN 201920003082 U CN201920003082 U CN 201920003082U CN 209214486 U CN209214486 U CN 209214486U
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Abstract
The utility model relates to rail traffic track engineering field of measuring technique, high tool is surveyed more particularly to a kind of section based on rail level, pass through setting height measuring mechanism and rail level positioning mechanism, height measuring mechanism is arranged on rail level positioning mechanism, the initial value for examining and determine ruler can be located on the intersection point of two rails center line and rail level by rail level positioning mechanism when installation, height measuring mechanism includes linker and calibrating ruler, one end of linker is fixed at the side of calibrating ruler, the other end of linker arbitrarily can be bent or be moved to realize and measure different height values.When work, install rail level positioning mechanism, pass through the cooperation of linker and calibrating ruler, height value everywhere on mounting wall can be measured, to carry out the installation of equipment, this structure designs the height value for measuring any point on mounting wall that can be easy, solves the problems, such as that traditional positioning every time requires the hole for getting corresponding height on steel pipe, improves operating efficiency.
Description
Technical field
The utility model relates to rail traffic track engineering field of measuring technique, especially a kind of section based on rail level is surveyed
High tool.
Background technique
Domestic city rail traffic system is many kinds of, including blower, water pipe, strong and weak electricity cable, trackside communication letter
Number equipment etc., installed height mark must accurately ensure that integral installation is not transfinited boundary, and later rework is reduced between each professional equipment；?
The position that section individual plants are concentrated, the case where depositing spanner insufficient space between devices, increasing co-ordination may cause
It does over again.
System installed height mark designs generally with the vertical elevation line benchmark at two rail level midpoints, and construction site is adopted at present
With positioning tool generally using simple positioning tool, the general hole for the height such as first getting on steel pipe according to mounting height, by steel
Guan Li is on the intersection point of two rails center line and rail level, then a bar perpendicular to steel pipe is arranged on hole, with this orient with
Two rail level midpoints are height, the installation point with the height such as hole.This positioning device measurement accuracy is not high, efficiency is lower, installs not
Stablize, surveys high tool using existing simple section, there are problems in measurement process: 1, the position fixing process of mounting height
In, exist such as steel pipe and horizontal plane out of plumb, rod piece and steel pipe out of plumb, to cause the installation point for needing to position in tunnel wall
Positioning is inaccurate, and there are certain position errors；2, there are jitter errors when adjustment vertical, i.e., by manually fixing steel pipe, make steel pipe
It is vertically in the horizontal plane, manually fixed that there are jitter errors；3, different mounting height is positioned every time to require to beat on steel pipe
The hole of corresponding height out；4, when reading height, the vertical ruler of sight is needed to hope to tested point, is directed at steel pipe with horizon bar one end
On hole, one end is directed at tested point, it is also desirable to while hope to tested point, both read methods all have the collimation error；5, exist
There are errors when determining two rail central points, and without fixed device measurement when often has eccentricity issues.
Utility model content
The goal of the invention of the utility model is: installing point height for existing simple positioning tool of the existing technology
Positioning is inaccurate, provides a kind of high tool of section survey based on rail level.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
High tool is surveyed in a kind of section based on rail level, which is characterized in that including height measuring mechanism and rail level positioning mechanism,
The height measuring mechanism is arranged on the rail level positioning mechanism, and the height measuring mechanism includes that linker and calibrating are straight
Ruler, one end of the linker are fixed at the side of the calibrating ruler, and the other end of the linker can be any curved
It is bent or mobile to realize the different height value of measurement；When installation, the rail level positioning mechanism can be by the first of the calibrating ruler
Initial value is located on the intersection point of two rails center line and rail level, which is the datum mark of track equipment mounting height measurement, institute
State the contact surface of rail level i.e. rail and Railway wheelset.
The rail level includes the first rail level and the second rail level, when the first rail level and not identical the second rail level height, is occurred
Two intersection points, datum mark is the intermediate point of two intersection points at this time.
The utility model is arranged by setting height measuring mechanism and rail level positioning mechanism, the height measuring mechanism in institute
It states on rail level positioning mechanism, the height measuring mechanism includes linker and calibrating ruler, and one end fixation of the linker is set
It sets in the side of the calibrating ruler, the other end of the linker arbitrarily can be bent or be moved to realize and measure different height
Angle value, when installation, the initial value of the calibrating ruler can be located in two rails center line and rail level by the rail level positioning mechanism
Intersection point on.When work, the rail level positioning mechanism is arranged on two rail levels, i.e., the initial value of the described calibrating ruler is located in
The intersection point of two rails center line and rail level, is then added water in linker, using linker both ends water level in sustained height
Principle after drawing the other end of linker onto mounting wall, carries out the displacement in vertical direction along mounting wall, observes height of water level
The scale value of the corresponding calibrating ruler, it can be learnt that the height value on mounting wall everywhere uses this to carry out the installation of equipment
Kind of structure design substitution is traditional to punch location and installation point by steel pipe, the height for measuring any point on mounting wall that can be easy
Angle value solves the problems, such as that traditional positioning every time requires the hole that corresponding height is got on steel pipe, solve traditional ruler or
Horizon bar reads the collimation error generated when measured value, improves operating efficiency.
As a preferred embodiment of the present invention, the rail level positioning mechanism includes level board and rail card base, the steel
Rail clip foot is movably connected on the level board, and the level board can be fixed on two rail levels by the rail card base；
The level board is arranged on two rail levels, forms datum level, the datum level and two steel for connecting two rail levels
The intersection point of rail center line is datum mark.
When the first rail level and identical the second rail level height, the rail level positioning mechanism can be by the first of the calibrating ruler
Initial value is located on the intersection point of two rails center line and the same rail level, and datum mark is level board bottom surface and two rails center at this time
The intersection point of line, when the first rail level and not identical the second rail level height, datum level is the median surface of the first rail level and the second rail level,
Datum mark is the intersection point of two rails center line and median surface, and datum mark can approximately regard level board bottom surface and two rails as at this time
The intersection point of center line.
As a preferred embodiment of the present invention, the rail card base includes the first rail card base and the second rail card base,
The rail includes the first rail and the second rail, and the outside of first rail is arranged in the first rail card base, described
The outside of second rail is arranged in second rail card base, and the first rail card base and the second rail card base are fixed
It is connected on the level board, the level board is fixed on two rail levels of first rail and the second rail.
As a preferred embodiment of the present invention, the distance between the first rail card base and the second rail card base
A is less than on the outside of first rail and b the distance between on the outside of the second rail, and phase difference c is 1-10mm, second rail
Card base is elastomeric element, when installation, passes through the amount of elastic deformation for squeezing and generating on the outside of the second rail card base and the second rail
The phase difference c is supplemented, the rail level positioning mechanism is fixed on two rails.
It as a preferred embodiment of the present invention, is to be bolted between the rail card base and the level board.
As a preferred embodiment of the present invention, the height measuring mechanism includes rotatable pole socket, the rotatable bar
Seat is for connecting the calibrating ruler, and the rotatable pole socket is hinged on the rail level positioning mechanism, and two rail level height are not
Meanwhile the rotatable rotatable pole socket is to perpendicular to horizontal plane.
As a preferred embodiment of the present invention, the rotatable pole socket is mutually fitted at a distance from the first rail card base
Match, and the distance is fixed value, after realizing that the first rail card base is disposed therein on a rail level, the rotatable bar
Seat is on two rails center line.
As a preferred embodiment of the present invention, it is provided with spirit level on the rotatable pole socket, the spirit level is vertical
In the calibrating ruler, the spirit level can not calibrate simultaneously the rotatable pole socket, calibrating directly in the height of two rail levels
The verticality of ruler and horizontal plane.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, the utility model is existed by setting height measuring mechanism and rail level positioning mechanism, the height measuring mechanism setting
On the rail level positioning mechanism, the height measuring mechanism includes linker and calibrating ruler, and one end of the linker is fixed
The side of the calibrating ruler is set, and the other end of the linker arbitrarily can be bent or be moved to realize that measurement is different
Height value, when installation, the initial value of the calibrating ruler can be located in two rails center line and rail by the rail level positioning mechanism
On the intersection point in face.When work, the rail level positioning mechanism is arranged on two rail levels, i.e., the initial value positioning of the described calibrating ruler
In the intersection point of two rails center line and rail level, water is then added in linker, using linker both ends water level in sustained height
Principle, the other end of linker is drawn onto mounting wall, the displacement in vertical direction is carried out along mounting wall, observes height of water level
The scale value of the corresponding calibrating ruler, it can be learnt that the height value on mounting wall everywhere uses this to carry out the installation of equipment
Kind of structure design substitution is traditional to punch location and installation point by steel pipe, the height for measuring any point on mounting wall that can be easy
Angle value solves the problems, such as that traditional positioning every time requires the hole that corresponding height is got on steel pipe, solve traditional ruler or
Horizon bar reads the collimation error generated when measured value, improves operating efficiency.
2, by being arranged the rail level positioning mechanism, the rail level positioning mechanism includes level board and rail card base, described
Rail card base is movably connected on the level board, and the level board can be fixed on two rail levels by the rail card base；
Described further includes rotatable pole socket, and the rotatable pole socket is adapted at a distance from the first rail card base, and the distance
For fixed value, after realizing that the first rail card base is disposed therein on a rail level, the rotatable pole socket is in two rails
On center line.Mechanism design in this way substitutes traditional use steel pipe location and installation point, solves conventional mounting height
In position fixing process, due to such as steel pipe and horizontal plane out of plumb, rod piece and steel pipe out of plumb, to cause to need to position in tunnel wall
Installation point location it is inaccurate, it is caused to there are problems that position error；It is replaced manually with the structure fixed datum of rail card base
Fixed datum, solve it is artificial there is bias when determining two rail central points, so as to cause position error the problem of.
3, by the way that the connection between the rail card base and the level board to be set as being bolted, by second steel
Elastomeric element is arranged in rail clip foot, and the rail level positioning mechanism can be fixed on by the second rail card base by the elasticity of itself
On two rails, being bolted is fixed on the rail card base on the level board, passes through the second rail card base
Level board is fixed on two rail by elasticity, when solving tradition adjustment vertical, that is, solves steel pipe passing through artificial vertical
Stand existing shake when on datum level, so as to cause position error the problem of.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic three dimensional views of rail level positioning mechanism；
Fig. 3 is two rail levels with rail level positioning mechanism two-dimensional structure figure when height；
Rail level positioning mechanism two-dimensional structure figure when Fig. 4 is two rail level different height；
Fig. 5 is the annexation figure of rotatable pole socket, calibrating ruler, spirit level and linker；
Fig. 6 is the relational graph of distance a, distance b and phase difference c.
Marked in the figure: 1- the first rail card base, 2- the second rail card base, the rotatable pole socket of 3-, 4- spirit level, 5- connection
Device, 6- examine and determine ruler, 7- card base bolt, 8- pole socket bolt, 9- fixing bolt, the first rail of 10-, the second rail of 11-, 12- base
Quasi- face, the first rail level of 13-, the second rail level of 14-, 15- datum mark, 16- two rails center line, 17- level board.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Specific embodiment is as follows, as shown in Figure 1, high tool, including height measurer are surveyed in a kind of section based on rail level
Structure and rail level positioning mechanism, the height measuring mechanism are arranged on the rail level positioning mechanism, the height measuring mechanism packet
Linker 5 and calibrating ruler 6 are included, one end of the linker 5 is fixed at the side of the calibrating ruler 6, the connection
The other end of device 5 arbitrarily can be bent or be moved to realize and measure different height values；When installation, the rail level positioning mechanism energy
Enough initial values by the calibrating ruler 6 are located in the intersection point of center line and rail level between the first rail 10 and the second rail 11
On, which is the datum mark 15 of track equipment mounting height measurement, the contact surface of the rail level, that is, rail and Railway wheelset.
The rail level includes the first rail level 13 and the second rail level 14, when the first rail level 13 and 14 height of the second rail level be not identical
When, there are two intersection points, datum mark 15 is the intermediate point of two intersection points, the i.e. centre of the first rail level 13 and the second rail level 14 at this time
The intersection point in face and two rails center line 16.
Height measuring mechanism includes rotatable pole socket 3, and the rotatable pole socket 3 is described for connecting the calibrating ruler 6
Rotatable pole socket 3 is hinged on the rail level positioning mechanism, when first rail level 13 and the different height of the second rail level 14, can be revolved
Turn the rotatable pole socket 3 to perpendicular to horizontal plane.
Rotatable pole socket 3 is adapted at a distance from the first rail card base 1, and the distance is fixed value, to realize
After the first rail card base 1 is arranged on the first rail level 13, the rotatable pole socket 3 is in the first rail 10 and the second rail
On center line between 11.
By adjusting the position of calibrating ruler 6, the initial value for examining and determine ruler 6 is arranged on datum mark 15.
Examine and determine the calibration of 6 scale of ruler:
Level board 17 is placed in the horizontal plane, a calibration ruler is set in the horizontal plane, the starting point for calibrating ruler is set
It sets in the bottom surface of level board 17, i.e. horizontal plane, unclamps fixing bolt 9, the scale value of adjustment calibrating ruler 6 is until with calibration ruler
Scale value it is identical, tighten fixing bolt 9, calibration finishes, at this time examine and determine ruler 6 initial value be datum mark 15 value
0；
Calibrating ruler is with standard-sized ruler.
As shown in Fig. 2, rail level positioning mechanism includes level board 17 and rail card base, the rail card base is movably connected in institute
It states on level board 17, the level board 17 can be fixed on the first rail level 13 and the second rail level 14 by the rail card base.
Rail level positioning mechanism further includes card base bolt 7, and rail card base includes the first rail card base 1 and the second rail card base 2,
Threaded hole compatible with card base bolt 7 is provided on first rail card base 1 and the second rail card base 2；It is left on level board 17
Right both ends are provided with threaded hole compatible with card base bolt 7；Wherein, on level board 17 between the threaded hole of left and right ends away from
The distance between center line from the center line for adapting to the first rail 10 and the second rail 11.
As shown in figure 3, rail card base includes the first rail card base 1 and the second rail card base 2, the first rail card base 1
The outside of first rail 10 is set, and the outside of the second rail 11 is arranged in the second rail card base 2, by being fixedly connected
The first rail card base 1 and level board 17 are stated, the second rail card base 2 and level board 17 are fixedly connected with, it can be by the level
Plate 17 is fixed on the first rail level 13 and the second rail level 14.
The level board 17 is arranged on the first rail level 13 and the second rail level 14, for connecting the first rail level 13 and the second rail
Face 14 forms datum level 12, and the intersection point of the datum level 12 and two rails center line 16 is datum mark 15.
It is to be bolted between rail card base and the level board 17.
The installation steps of rail level positioning mechanism:
Step 1: the threaded hole of 17 left end of threaded hole and level board on the first rail card base 1 is aligned, card base spiral shell is installed
First rail card base 1 is fixed on level board 17 by bolt 7, then level board 17 is placed on the first rail level 13 and the second rail level 14
On, wherein the end of the first rail card base 1 is arranged on the lateral surface of the first rail 10；
Step 2: the threaded hole of 17 right end of threaded hole and level board on the second rail card base 2 is aligned, card base spiral shell is installed
Second rail card base 2 is fixed on level board 17 by bolt 7, wherein the end of the second rail card base 2 is arranged in the second rail 11
Lateral surface on, while by the elasticity of 2 end of the second rail card base, make the first rail card base 1 and the second rail card base 2 by water
Plate 17 is fixed on rail rail level.
When the first rail level 13 and identical 14 height of the second rail level, the bottom surface of the level board 17 and the first rail level 13 are completely
Contact, the bottom surface of the level board 17 and the second rail level 14 completely attach to, and the datum level 12 is the first rail level 13 and the second rail
Face 14, the datum mark 15 are the intersection point of two rails center line 16 and datum level 12.
As shown in figure 4, the difference in height of the first rail 10 and the second rail 11 is amplified in order to preferably indicate difference in height
It is 10 times few, when track is turned round, need to increase height to a wherein rail, at this time the first rail level 13 and the second rail
Same plane is not between face 14, datum mark 15 should be the median of 14 height of the first rail level 13 and the second rail level at this time, according to
It so can be considered the bottom surface of level board 17 and the intersection point of two rails center line 16.
When the first rail level 13 and identical 14 height of the second rail level, the rail level positioning mechanism can be by the calibrating ruler
6 initial value is located on the intersection point of two rails center line 16 and the same rail level, and datum mark 15 is 17 bottom surface of level board at this time
With the intersection point of two rails center line 16, when the first rail level 13 and not identical 14 height of the second rail level, datum level 15 is the first rail
The median surface in face 13 and the second rail level 14, datum mark 15 are the intersection point of two rails center line 16 and median surface, at this time datum mark 15
The intersection point of level board 17 bottom surface and two rails center line 16 can approximately be regarded as.
I.e. no matter whether the first rail level 13 and the second rail level 14 are in sustained height, and datum mark 15 is the bottom surface of level board 17
With the intersection point of two rails center line 16, as long as calibrating calibrating ruler 6, the initial value of calibrating ruler 6 is located at two rails center
On the intersection point of 17 bottom surface of line 16 and level board, i.e., on datum mark 15.
As shown in figure 5, be provided with spirit level 4 on rotatable pole socket 3, the spirit level 4 perpendicular to the calibrating ruler 6,
The spirit level 4 can not calibrate simultaneously the rotatable pole socket 3, calibrating in first rail level 13 and 14 height of the second rail level
The verticality of ruler 6 and horizontal plane.
Rotatable pole socket 3 further includes pole socket bolt 8 and fixing bolt 9, and when tightening pole socket bolt 8, rotatable pole socket 3 can not
Rotation, when unscrewing pole socket bolt 8, rotatable pole socket 3 can be rotated；Fixing bolt 9 is used for immobilization of assay ruler 6.
When the first rail level 13 and the second rail level 14 are not at same plane, unscrew pole socket bolt 8, adjust rotatable pole socket
3 angle examines and determine ruler 6 perpendicular to horizontal plane, tightens pole socket bolt 8, can start to survey until when spirit level 4 shows level
Amount.
Fixing bolt 9 is used to adjust the position of calibrating ruler 6, i.e. adjustment scale value.
As shown in fig. 6, structural relation is presented for convenience since phase difference c is only 1-10mm, phase difference c is amplified 20
Times.
Second rail card base 2 is elastomeric element, and the second rail card base 2 can be realized the rail by the elasticity of itself
Face positioning mechanism is fixed on the first rail 10 and the second rail 11；The end of the first rail card base 1 and second steel
The distance between the end of rail clip foot 2 a less than 11 lateral surface of 10 lateral surface of the first rail and the second rail distance b, and differ
Value c is 1-10mm, fills phase difference c by the elastic deformation value complement of 2 end of the second rail card base when installation, at this time the first rail card
What foot 1 and the second rail card base 2 can consolidate is fixed on level board 17 on first rail level 13 and the second rail level 14.
Wherein, distance a is equal to distance b plus phase difference c.
When work, the starting point of measurement is arranged on datum mark 15 by calibrating and measuring ruler 6, the rail level is positioned
Mechanism is mounted on the first rail level 13 and the second rail level 14, and the initial value of the calibrating ruler 6 is located on datum mark 15, then
Water is added in linker 5, using 5 both ends water level of linker in the principle of sustained height, the other end of linker 5 is drawn to peace
After filling wall, the displacement in vertical direction is carried out along mounting wall, observation height of water level corresponds to the scale value of the calibrating ruler 6, i.e.,
It can be seen that the height value in tunnel wall by track everywhere, to carry out the installation of track equipment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (8)
1. high tool is surveyed in a kind of section based on rail level, which is characterized in that including height measuring mechanism and rail level positioning mechanism, institute
It states height measuring mechanism to be arranged on the rail level positioning mechanism, the height measuring mechanism includes that linker (5) and calibrating are straight
Ruler (6), one end of the linker (5) be fixed at it is described calibrating ruler (6) side, the linker (5) it is another
End arbitrarily can be bent or be moved to realize and measure different height values；
When installation, the initial value of calibrating ruler (6) can be located in two rails center line by the rail level positioning mechanism
(16) and on the intersection point of rail level, the intersection point be track equipment mounting height measurement datum mark (15), the rail level, that is, rail with
The contact surface of Railway wheelset.
2. high tool is surveyed in a kind of section based on rail level according to claim 1, which is characterized in that the rail level localization machine
Structure includes level board (17) and rail card base, and the rail card base is movably connected on the level board (17), the rail card
The level board (17) can be fixed on two rail levels by foot；
The level board (17) is arranged on two rail levels, forms datum level (12) for connecting two rail levels, the datum level
It (12) is datum mark (15) with the intersection point of two rails center line (16).
3. high tool is surveyed in a kind of section based on rail level according to claim 2, which is characterized in that the rail card base packet
The first rail card base (1) and the second rail card base (2) are included, the rail includes the first rail (10) and the second rail (11), institute
It is described in the outside of the first rail (10) to state the setting of the first rail card base (1), the second rail card base (2) setting is described the
The outside of two rail (11), the first rail card base (1) and the second rail card base (2) are fixedly connected in the level
On plate (17), the level board (17) is fixed on two rail levels of first rail (10) and the second rail (11).
4. high tool is surveyed in a kind of section based on rail level according to claim 3, which is characterized in that the first rail card
The distance between foot (1) and the second rail card base (2) a are less than on the outside of first rail (10) with the second rail (11) outside
The distance between side b, and phase difference c is 1-10mm, the second rail card base (2) is elastomeric element, when installation, by described
The amount of elastic deformation generated is squeezed on the outside of second rail card base (2) and the second rail (11) and supplements the phase difference c, by the rail
Face positioning mechanism is fixed on two rails.
5. high tool is surveyed in a kind of section based on rail level according to claim 4, which is characterized in that the rail card base and
It is to be bolted between the level board (17).
6. high tool is surveyed in a kind of section based on rail level according to claim 5, which is characterized in that the height measurer
Structure includes rotatable pole socket (3), and the rotatable pole socket (3) is for connecting the calibrating ruler (6), the rotatable pole socket
(3) it is hinged on the rail level positioning mechanism.
7. high tool is surveyed in a kind of section based on rail level according to claim 6, which is characterized in that the rotatable pole socket
(3) it is adapted at a distance from the first rail card base (1), and the distance is fixed value, to realize the first rail card
After foot (1) is disposed therein on a rail level, the rotatable pole socket (3) is on two rails center line (16).
8. high tool is surveyed in a kind of section based on rail level according to claim 7, which is characterized in that the rotatable pole socket
(3) it is provided on spirit level (4), for the spirit level (4) perpendicular to the calibrating ruler (6), the spirit level (4) can be two
The verticality that a rail level height does not calibrate the rotatable pole socket (3) simultaneously, examines and determine ruler (6) and horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003082.3U CN209214486U (en) | 2019-01-02 | 2019-01-02 | A kind of high tool of section survey based on rail level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003082.3U CN209214486U (en) | 2019-01-02 | 2019-01-02 | A kind of high tool of section survey based on rail level |
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| Publication Number | Publication Date |
|---|---|
| CN209214486U true CN209214486U (en) | 2019-08-06 |
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ID=67466805
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| CN201920003082.3U Active CN209214486U (en) | 2019-01-02 | 2019-01-02 | A kind of high tool of section survey based on rail level |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252030A (en) * | 2021-12-03 | 2022-03-29 | 东风柳州汽车有限公司 | System and method for measuring height difference of measuring points of sample car |
-
2019
- 2019-01-02 CN CN201920003082.3U patent/CN209214486U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252030A (en) * | 2021-12-03 | 2022-03-29 | 东风柳州汽车有限公司 | System and method for measuring height difference of measuring points of sample car |
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