CN206459587U - A kind of survey tool - Google Patents
A kind of survey tool Download PDFInfo
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- CN206459587U CN206459587U CN201621271511.8U CN201621271511U CN206459587U CN 206459587 U CN206459587 U CN 206459587U CN 201621271511 U CN201621271511 U CN 201621271511U CN 206459587 U CN206459587 U CN 206459587U
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- measuring ruler
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- 230000002787 reinforcement Effects 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011800 void material Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 21
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a kind of survey tool, belong to pipe technology field.Survey tool includes：Main scale, depth measuring ruler, the first scale and the second scale；Depth measuring ruler is connected with main scale, and the axis of depth measuring ruler and the length direction of main scale are orthogonal, can be moved on the length direction and width of main scale；The other end of one end connection of first scale and main scale, the second scale and main scale is connected, and the first scale and the second scale can be moved on the width of main scale；Wherein, the surface of main scale is provided with size scale in the longitudinal direction, and the surface on the surface of depth measuring ruler, the surface of the first scale and the second scale is provided with size scale on the width of main scale.The utility model is used cooperatively by the first scale, the second scale, depth measuring ruler and main scale, weld seam deviation angle and deviation length that measurement tube group butt welding is caused, is not influenceed by factors such as pipeline surface curve, weld reinforcements, improves measurement accuracy.
Description
Technical field
The utility model is related to pipe technology field, more particularly to a kind of survey tool.
Background technology
During oil and gas development, mined oil or natural gas can be transported by pipeline.Generally, transport
The pipeline of oil transportation gas is to obtain many segment pipes by welding., it is necessary to which many segment pipes are distinguished in pipe-laying process
It is placed on the location excavated in advance；Afterwards, pipeline adjacent in many segment pipes is welded, connect into one it is complete
Pipeline.Because pipeline is located in what the location excavated was welded, the location excavated is that every segment pipe is corresponding
Military service place, therefore, after the completion of pipeline welding, can be buried pipeline, so as to complete the laying of pipeline.
The influence of the factor such as physical features, workmen's quality, is welded by pipe string when wherein, due to pipe laying
When, the axis of two segment pipes is possible to not point-blank, so as to cause the weld seam angle after welding to there is deviation.For angle
The pipeline that deviation exceedes certain numerical value is spent, internally in the presence of pressure, thermal stress and external load, in the meeting of angular deviation position
Larger bending stress is produced, the bearing capacity of pipeline is influenceed.Therefore, in order to examine whether the angular deviation is in rational number
, it is necessary to be measured to the angular deviation within the scope of value.
In the related art, for pipeline just under arms, first by the geometry inner detection technique of no-dig technique to weld seam
Angular deviation is identified；Afterwards, the pipeline location of the presence angular deviation recognized is subjected to digging in-situ；Finally, it is split
The pipeline of exposed presence angular deviation after digging, the angular deviation is measured using survey tools such as conventional ruler, bevel protractors.
During the utility model is realized, inventor has found that correlation technique at least has problems with：
When being measured using survey tools such as conventional ruler, bevel protractors to angular deviation, due to such measurement work
Tool is easily influenceed by factors such as pipeline surface curve, weld reinforcements, it is difficult to directly, accurately measure related data, measurement essence
Degree is relatively low, and reliability is poor, directly affects the accuracy of inspection.
Utility model content
In order to improve the accuracy that angular deviation is measured at Sizing In Butt Welded Pipes, the utility model provides a kind of measurement work
Tool.The technical scheme is as follows：
A kind of survey tool, the survey tool includes：Main scale, depth measuring ruler, the first scale and the second scale；
The depth measuring ruler is connected with the main scale, and the length side of the axis of the depth measuring ruler and the main scale
To orthogonal, the depth measuring ruler can be moved on the length direction and width of the main scale；
First scale is connected with one end of the main scale, and second scale is connected with the other end of the main scale,
First scale and second scale can be moved on the width of the main scale；
Wherein, the surface of the main scale is provided with size scale, the surface of the depth measuring ruler, institute in the longitudinal direction
State the surface of the first scale and the surface of second scale and be provided with size scale on the width of the main scale.
Alternatively, the survey tool also includes the first fixing device, the second fixing device and the 3rd fixing device；
The depth measuring ruler is connected by first fixing device with the main scale, and first scale passes through described
Second fixing device is connected with the main scale, and second scale is connected by the 3rd fixing device with the main scale.
Alternatively, first fixing device, second fixing device and the 3rd fixing device are by dismountable
Screw bolt and nut is constituted；
Width is provided with the length direction of the main scale and is more than the diameter of the bolt, length less than the main scale length
Horizontal dead slot, width is provided with the width of the main scale, and to be less than the main scale more than the diameter of bolt, highly wide
The vertical dead slot of degree.
Alternatively, it is provided with and the bolt on the depth measuring ruler, first scale and second scale
The screwed hole being engaged.
Alternatively, the depth measuring ruler is sheet, and one end of the depth measuring ruler is triangle, and the depth is surveyed
The other end of gage sets fluted, and the width of the groove is more than the width of pipe welding seam reinforcement, and the depth of the groove is big
In the height of the pipe welding seam reinforcement, the pipe welding seam reinforcement is higher by the height of the pipe surface when being pipeline welding.
Alternatively, the depth measuring ruler is column, and the depth measuring ruler is diametrically provided with strip through-hole, described
The height of strip through-hole is more than the width of the main scale, and the width of the strip through-hole is more than the thickness of the main scale.
Alternatively, one end of the depth measuring ruler is cone, and the other end of the depth measuring ruler sets fluted,
Width at the opening of the groove is more than the width of pipe welding seam reinforcement, and the depth of the groove is more than more than the pipe welding seam
High height, the pipe welding seam reinforcement is higher by the height of the pipe surface when being pipeline welding.
Alternatively, air level is provided with the main scale, the air level is used to calibrate the survey tool.
The beneficial effect of technical scheme that the utility model is provided is：
By the cooperation of the first scale, the second scale and depth measuring ruler, the commissure that measurement has angular deviation is deviateed
The depth in pipe level face, then by depth measuring ruler and main scale, there is the duct length scope of angular deviation in measurement, so that really
Determine the angle of deviation and deviation length, in measurement process, multiple parts of the survey tool are used cooperatively, not by pipe surface
The influence of the factors such as curved surface, weld reinforcement, improves measurement accuracy.
Brief description of the drawings
Fig. 1 is a kind of structural representation for survey tool that the utility model embodiment is provided；
Fig. 2 is a kind of left view for depth measuring ruler that the utility model embodiment is provided；
Fig. 3 is a kind of operating diagram for survey tool that the utility model embodiment is provided；
Fig. 4 is a kind of operating diagram for survey tool that the utility model embodiment is provided.
Reference：
1：Main scale, 2：Depth measuring ruler, 3：First scale, 4：Second scale, 5：First fixing device, 6：Second fixes dress
Put, 7：3rd fixing device, 8：Air level, 9：Strip through-hole, 10：Concave surface pipe under test, 11：Convex surface pipe under test.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
The utility model provides a kind of survey tool, as shown in figure 1, the survey tool includes：Main scale 1, depth measuring ruler
2nd, the first scale 3 and the second scale 4；
Depth measuring ruler 2 is connected with main scale 1, and the length direction of the axis and main scale 1 of depth measuring ruler 2 is orthogonal,
Depth measuring ruler 2 can be moved on the length direction and width of main scale 1；
First scale 3 is connected with one end of main scale 1, and the second scale 4 is connected with the other end of main scale 1, the first scale 3 and
Two scales 4 can be moved on the width of main scale 1；
Wherein, the surface of main scale 1 is provided with size scale, the surface of depth measuring ruler 2, the first scale in the longitudinal direction
3 surface and the surface of the second scale 4 are provided with size scale on the width of main scale.
The survey tool that the utility model embodiment is provided, passes through matching somebody with somebody for the first scale, the second scale and depth measuring ruler
Close, measurement has the depth in the commissure deviation pipe level face of angular deviation, then by depth measuring ruler and main scale, measurement is deposited
In the duct length scope of angular deviation, so that it is determined that the angle of deviation and deviation length, in measurement process, the survey tool it is many
Individual part is used cooperatively, and is not influenceed by factors such as pipeline surface curve, weld reinforcements, improves measurement accuracy.
Alternatively, as shown in figure 1, depth measuring ruler 2 can be connected by the first fixing device 5 with main scale 1, the first scale
3 can be connected by the second fixing device 6 with one end of main scale 1, and the second scale can pass through the 3rd fixing device 7 and main scale 1
The other end connection.Wherein, first fixing device 5, the second fixing device 6, the 3rd fixing device 7 can be dismountable
It is respectively arranged with bolt etc., the depth measuring ruler 2, the first scale 3 and the second scale 4 solid with first fixing device 5, second
Determine device 6, the screwed hole that the 3rd fixing device 7 is engaged.
Wherein, in order to which accurate positioning and school Z-operation are convenient, horizontal blank can be set on the length direction of main scale 1
Groove, the width of the horizontal dead slot should be slightly bigger than the diameter of bolt, and length should be less than the length of main scale 1.At school zero or positioning,
Screwed hole on bolt insertion depth measuring scale 2, and pass through the horizontal dead slot；Afterwards, due to the horizontal dead slot width only
The diameter of bolt is slightly greater than, therefore, nut is now used cooperatively on bolt, the external diameter of nut is far longer than the horizontal blank
Groove, just can accurately be positioned on the width of main scale to depth measuring ruler 2.
Wherein, depth measuring ruler 2 can be sheet, or column.When depth measuring ruler 2 is sheet, its one end
For triangle, the other end sets fluted.When the depth measuring ruler 2 is column, one end of the depth measuring ruler 2 is taper,
The other end is set to a groove.Wherein, the width at the opening of the groove is more than the width of pipe welding seam reinforcement, the groove
Depth is more than the height of pipe welding seam reinforcement.In addition, pipe welding seam reinforcement refers to the height that pipe surface is higher by during pipeline welding.
It should be noted that as shown in Fig. 2 when depth measuring ruler 2 be column when, in the depth measuring ruler 2 radially
Strip through-hole 9 can be provided with, the height of the strip through-hole 9 is more than the width of main scale 1, the width of the strip through-hole 9 is less than master
The thickness of chi 1, so that main scale 1 can be passed through from therebetween.Measurement when, technical staff can along main scale 1 length direction and width
Degree direction is freely moved to depth measuring ruler 2, when being moved to the position for needing reading, then stops movement and read
Number.
Further, in order to which reading is more accurate, after depth measuring ruler 2 is moved to the position for needing reading, technology people
Reading again after depth measuring ruler 2 can be fixed in the position by member.Now, can also on the depth measuring ruler 2 of the column
The first fixing device 5 is provided with, and first fixing device 5 can be multiple.For example, first fixing device 5 can be position
In the center of depth measuring ruler 2, one group of bolt of positive and negative symmetric position, certainly, first fixing device 5 can also be position
In the groove bottommost of depth measuring ruler 2 to multigroup bolt between triangle or tapering point base.
In addition, the first scale 3 and the second scale 4 can be with certain thickness sheet, it is connected at it with main scale 1
Set fluted on face, main scale 1 can be inserted, also, on the two side of the groove and positioned at the horizontal axis of main scale 1
Position on be provided with paired screwed hole, be fixed by paired hinged bolt.
Alternatively, when survey tool carries out school zero or survey measurements, survey tool level is kept, and only according to technology
Personnel visually observe it is difficult to ensure that survey tool level, therefore, is provided with air level 8 on the survey tool.When progress school zero
When either measuring, when air level 8 is maintained at middle part, then show that the survey tool is in horizontality.
In the practical application for the survey tool that the utility model embodiment is provided, it is necessary first to which survey tool is carried out into school
Zero, as shown in figure 1, regarding the intersection point of the vertical axis on the horizontal axis and width on the length direction of main scale 1 as main scale 1
Scale zero, the intersection point that depth measuring ruler 2 is divided equally to the center line of the peaceful partial width of center line of length is used as depth measuring ruler 2
Scale zero, using the scale zero at the centre symmetry line of the first scale 3 as the first scale 3, by the center pair of the second scale 4
Claim the scale zero as the second scale 4 at line；Afterwards, by the scale zero of depth measuring ruler and the scale zero pair of main scale
Together, the scale zero of the first scale 3 and the second scale 4 is alignd with the horizontal axis of main scale, whether the air level 8 of observation now
In middle part, when air level 8 is in middle part, complete after the completion of the school zero to the survey tool, school zero, first marks
The upper end of chi 3, the second scale 4 and depth measuring ruler 2 is in same level, and lower end is also in same level.
Secondly, the weld seam angular deviation of tube group butt welding formation can cause pipeline to be measured to produce two kinds of patterns, one
The pipe level line that planting is occur at the pipeline of angular deviation is less than normal pipeline horizontal line, referred to as concave surface；Another is hair
Pipe level line at the pipeline of raw angular deviation is higher than normal pipeline horizontal line, referred to as convex surface；Wherein, the normal pipeline water
Horizontal line is that the pipe level line at the pipeline of angular deviation does not occur.
When the pattern of pipeline to be measured is concave surface, as shown in figure 3, the survey tool of high-ranking officers zero is positioned over pipe under test
On 10, the length of survey tool can be far longer than deviation length；First scale 3 and the second scale 4 are connect with pipe surface
Touch, move integrally or adjust the position of survey tool, whether observation air level 8 is in middle part, in air level 8 is in
Between position when, keep the position of the first scale 3 and the second scale 4 motionless, now, survey tool is in horizontality.Afterwards, to
Lower mobile depth measuring ruler 2, and the left and right adjusting depth measuring ruler 2, the one end for making depth measuring ruler 2 triangular in shape or tapered
Contact, depth measuring ruler 2 is fixed by the first fixing device 5 with the lowest part of the concave surface now, and read now
Concave surface depth h1；If depth measuring ruler 2 is contacted with weld reinforcement, h is being measured1Afterwards, in addition it is also necessary to measure the height of weld reinforcement
hw；Afterwards, the first fixing device 5 is unclamped, depth measuring ruler 2 is moved to the left, when scale zero and the main scale 1 of depth measuring ruler 2
Horizontal axis it is concordant when, by the constant depth measuring scale 2 of the first fixing device 1, and write down now depth measuring ruler 2 and pipeline
The position of surface contact, scale corresponding with the position is read on main scale 1, L is designated as1；In the same way, the depth is surveyed
Gage 2 moves right, and measures length L2, based on the data measured, angle of deviation θ and deviation length L is calculated by following formula：
θ1=arctan ((h1+hw)/L1)
θ2=arctan ((h1+hw)/L2)
θ=max (θ1,θ2)
L=L1+L2
Wherein, when depth measuring ruler 2 is not in contact with to weld reinforcement, hw=0.The angle of deviation on obtained both sides is calculated, by
In there is strict standard requirement in the detection, therefore an angle larger in two two angles should be taken as angle of deviation θ.
When the pattern of pipeline to be measured is convex surface, as shown in figure 3, the survey tool of high-ranking officers zero is positioned over pipe under test
On 11, the groove of depth measuring ruler 2 is then directed at weld reinforcement, because in pipeline welding, weld reinforcement is that have certain
Size requirements, therefore, when making the survey tool, the depth and A/F of the groove of depth measuring ruler 2 can join
Relevant criterion requirement according to weld reinforcement is made, so that during measurement, weld reinforcement can enter in the groove, and depth is surveyed
Gage 2 can also be contacted with pipe surface.Afterwards, the second fixing device 6 for fixing the first scale 3 and the second scale 4 and the are unclamped
Three fixing devices 7, move up and down the first scale 2 and the second scale 3 respectively, make the first scale 2 and the second scale 3 respectively with pipeline
Surface is contacted, and by observing air level 8, it is ensured that survey tool is in horizontality.Now, the He of the second fixing device 6 is passed through
3rd fixing device 7 fixes the first scale 3 and the second scale 4 respectively, and records reading h now respectively3And h4.Keep measurement
Instrument is motionless, unclamps the first fixing device 5, depth measuring ruler 2 is lifted up, and is moved to the left across weld reinforcement, continues to move
Dynamic depth measuring ruler 2, when the reading on depth measuring ruler 2 is identical with the reading of the first scale 3, constant depth measuring scale 2, and
Position where the right-hand member of the groove of mark depths measuring scale 2, the corresponding scale value in the position is read from main scale 1, L is designated as3。
Then, according to the method described above, depth measuring ruler 2 is moved right, when the reading of the reading on depth measuring ruler 2 and the second scale 4
Number it is identical when, read the groove of depth measuring ruler 2 left position on main scale corresponding scale value, be designated as L4.Surveyed based on more than
The data measured, angle of deviation θ and deviation length L is calculated by following formula：
θ3=arctan (h3/L3)
θ4=arctan (h4/L4)
θ=max (θ3,θ4)
L=L3+L4
The survey tool that the utility model embodiment is provided, passes through matching somebody with somebody for the first scale, the second scale and depth measuring ruler
Close, measurement has the depth in the commissure deviation pipe level face of angular deviation, then by depth measuring ruler and main scale, measurement is deposited
In the duct length scope of angular deviation, so that it is determined that the angle of deviation and deviation length, in measurement process, the survey tool it is many
Individual part is used cooperatively, and is not influenceed by factors such as pipeline surface curve, weld reinforcements, improves measurement accuracy, enhancing
Pipe detection and the reliability evaluated.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of survey tool, it is characterised in that the survey tool includes：Main scale, depth measuring ruler, the first scale and second
Scale；
The depth measuring ruler is connected with the main scale, and the length direction of the axis of the depth measuring ruler and the main scale is mutual
Perpendicular, the depth measuring ruler can be moved on the length direction and width of the main scale；
First scale is connected with one end of the main scale, and second scale is connected with the other end of the main scale, described
First scale and second scale can be moved on the width of the main scale；
Wherein, the surface of the main scale is provided with size scale, the surface of the depth measuring ruler, described in the longitudinal direction
The surface of one scale and the surface of second scale are provided with size scale on the width of the main scale.
2. survey tool as claimed in claim 1, it is characterised in that the survey tool also includes the first fixing device, the
Two fixing devices and the 3rd fixing device；
The depth measuring ruler is connected by first fixing device with the main scale, and first scale passes through described second
Fixing device is connected with the main scale, and second scale is connected by the 3rd fixing device with the main scale.
3. survey tool as claimed in claim 2, it is characterised in that first fixing device, second fixing device
Include dismountable bolt with the 3rd fixing device；
Width is provided with the length direction of the main scale and is more than the water that the diameter of the bolt, length are less than the main scale length
Groove out of the void.
4. survey tool as claimed in claim 3, it is characterised in that the depth measuring ruler, first scale and described
The screwed hole being engaged with the bolt is provided with second scale.
5. the survey tool as described in claim 1-4 is any, it is characterised in that the depth measuring ruler is sheet, and described
One end of depth measuring ruler is triangle, and the other end of the depth measuring ruler sets fluted, and the width of the groove is more than
The width of pipe welding seam reinforcement, the depth of the groove is more than the height of the pipe welding seam reinforcement, the pipe welding seam reinforcement
The height of the pipe surface is higher by during for pipeline welding.
6. survey tool as claimed in claim 1, it is characterised in that the depth measuring ruler is column, the depth survey
Chi is diametrically provided with strip through-hole, and the height of the strip through-hole is more than the width of the main scale, the strip through-hole
Width is more than the thickness of the main scale.
7. survey tool as claimed in claim 6, it is characterised in that one end of the depth measuring ruler is cone, described
The other end of depth measuring ruler sets fluted, and the width at the opening of the groove is more than the width of pipe welding seam reinforcement, institute
The depth for stating groove is more than the height of the pipe welding seam reinforcement, and the pipe welding seam reinforcement is higher by the pipe when being pipeline welding
The height on road surface.
8. survey tool as claimed in claim 1, it is characterised in that air level, the air level are provided with the main scale
For calibrating the survey tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621271511.8U CN206459587U (en) | 2016-11-24 | 2016-11-24 | A kind of survey tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621271511.8U CN206459587U (en) | 2016-11-24 | 2016-11-24 | A kind of survey tool |
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| Publication Number | Publication Date |
|---|---|
| CN206459587U true CN206459587U (en) | 2017-09-01 |
Family
ID=59692506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201621271511.8U Active CN206459587U (en) | 2016-11-24 | 2016-11-24 | A kind of survey tool |
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| CN (1) | CN206459587U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775843A (en) * | 2018-07-10 | 2018-11-09 | 安徽悦众车身装备有限公司 | A kind of rectangular vehicle fuel tank cap detecting tool |
| CN108917576A (en) * | 2018-07-13 | 2018-11-30 | 杭州愚工智能设备有限公司 | Dimension measuring apparatus and its measurement method |
| CN109945757A (en) * | 2019-04-15 | 2019-06-28 | 三门核电有限公司 | It is a kind of to measure the tool that degree of folding is generated after pipeline simmering and bending are processed |
| CN110487153A (en) * | 2019-09-11 | 2019-11-22 | 中建八局轨道交通建设有限公司 | The review measuring device and its method of middle the buried water stop installation and bar spacing of tunnel inverted arch longitudinal direction construction joint |
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2016
- 2016-11-24 CN CN201621271511.8U patent/CN206459587U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775843A (en) * | 2018-07-10 | 2018-11-09 | 安徽悦众车身装备有限公司 | A kind of rectangular vehicle fuel tank cap detecting tool |
| CN108917576A (en) * | 2018-07-13 | 2018-11-30 | 杭州愚工智能设备有限公司 | Dimension measuring apparatus and its measurement method |
| CN109945757A (en) * | 2019-04-15 | 2019-06-28 | 三门核电有限公司 | It is a kind of to measure the tool that degree of folding is generated after pipeline simmering and bending are processed |
| CN109945757B (en) * | 2019-04-15 | 2024-04-30 | 三门核电有限公司 | Tool for measuring degree of wrinkling generated after pipe bending processing |
| CN110487153A (en) * | 2019-09-11 | 2019-11-22 | 中建八局轨道交通建设有限公司 | The review measuring device and its method of middle the buried water stop installation and bar spacing of tunnel inverted arch longitudinal direction construction joint |
| CN110487153B (en) * | 2019-09-11 | 2024-05-10 | 中建八局轨道交通建设有限公司 | Device and method for rechecking and measuring installation and reinforcement spacing of buried water stop |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20211111 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Address before: 100007 China Petroleum Building, No. 9, Dongzhimen North Street, Dongcheng District, Beijing Patentee before: PetroChina Company Limited |