CN109268654A - Open-close type bracket for pipeline inspection - Google Patents
Open-close type bracket for pipeline inspection Download PDFInfo
- Publication number
- CN109268654A CN109268654A CN201811178301.8A CN201811178301A CN109268654A CN 109268654 A CN109268654 A CN 109268654A CN 201811178301 A CN201811178301 A CN 201811178301A CN 109268654 A CN109268654 A CN 109268654A
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- Prior art keywords
- flaw detecting
- detecting rack
- open
- folding
- flaw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000007689 inspection Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention provides a kind of open-close type bracket for pipeline inspection, including mobile bracket and open-close type flaw detecting rack；Mobile bracket includes support plate and support rod；Support plate is horizontally disposed；Support rod is symmetrically arranged on support plate surface two sides；Open-close type flaw detecting rack matches installation, including bottom flaw detecting rack, top flaw detecting rack and flaw detecting rack regulating part with support rod；Bottom flaw detecting rack and top flaw detecting rack are in arcuation, and the top of top flaw detecting rack and the top of bottom flaw detecting rack are slidably connected；Flaw detecting rack regulating part includes bottom adjustment axis, top adjustable column, adjusts connecting plate and adjust motor.The present invention can carry out folding adjusting to open-close type flaw detecting rack according to the size and required flaw detection position of pipeline to be detected a flaw, and have extremely strong adaptability, guarantee going on smoothly for carrying out flaw detection；Simultaneously structure novel, adjust it is convenient, using stabilization, there are good market prospects.
Description
Technical field
The invention belongs to engineering detecting apparatus fields, and in particular to a kind of open-close type bracket for pipeline inspection.
Background technique
Pipeline is connected into pipe, pipe connector and valve etc. for conveying gas, liquid or with solid
The device of grain.In general, fluid flows at low pressure from the high pressure of pipeline after the pressurization such as air blower, compressor, pump and boiler,
The pressure or gravity conveying of fluid itself can also be used.The purposes of pipeline is very extensive, is used primarily in water supply, draining, heat supply, confession
In coal gas, long distance delivery oil and natural gas, agricultural irrigation, hydraulic engineering and various commercial plants.In the prior art, engineering
Personnel generally use pipe detection device and carry out leakage point inspection to pipeline, are only able to detect the pipeline after having leaked in this way,
Preventive test cannot be carried out to pipeline, it is difficult to the real-time status of effective monitoring pipeline.
At present can by pipe crack detector to pipeline carry out carrying out flaw detection, but due to pipe crack detector total quality compared with
Greatly, not only mobile more difficult for the pipeline positioned at narrow zone, while when there are certain changes for the height of pipeline or size
When change, it can not be adjusted in time, carrying out flaw detection efficiency is lower.
Therefore, it develops in view of the above problems a kind of for there are the pipelines of certain altitude or change in size to carry out effectively
The supplementary structure of carrying out flaw detection is those skilled in the art institute urgent need to solve the problem.
Summary of the invention
To solve the above problems, the invention discloses a kind of open-close type brackets for pipeline inspection.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of open-close type bracket for pipeline inspection, including mobile bracket and open-close type flaw detecting rack；Mobile bracket includes branch
Fagging and support rod；Support plate is horizontally disposed；Support rod is symmetrically arranged on the surface two sides of support plate；Open-close type flaw detecting rack and branch
Strut matches installation, including bottom flaw detecting rack, top flaw detecting rack and flaw detecting rack regulating part；Bottom flaw detecting rack and top are detected a flaw
Frame is in arcuation, and the center of circle of place circle is respectively positioned on close to mobile bracket side, and the top of top flaw detecting rack and bottom spy
The top for hurting frame is slidably connected；Flaw detecting rack regulating part includes bottom adjustment axis, top adjustable column, adjusts connecting plate and adjust electricity
Machine；Bottom adjustment axis runs through and is rotatably installed in the top of bottom flaw detecting rack；Top adjustable column is fixed on the bottom of top flaw detecting rack
End, top adjustable column are parallel with the axis of circle where the flaw detecting rack of bottom with bottom adjustment axis；Adjust one end and bottom of connecting plate
Portion's adjustment axis is mutually fixedly mounted, and the other end is being equipped with adjustment hole with top adjustable column corresponding section；Adjustment hole is arcuate socket, and
The radius of circle where it be greater than bottom adjustment axis between the adjustable column of top in the flaw detecting rack circumferential direction of bottom at a distance from；It adjusts
Motor is mounted on the flaw detecting rack of bottom by electric machine support, and its output shaft is coaxially mutually installed with bottom adjustment axis.
The present invention provides a kind of open-close type brackets for pipeline inspection, by mobile bracket and open-close type flaw detecting rack group
At open-close type when being respectively used to component support and flaw detection is adjusted.Mobile bracket in the present invention is by horizontally disposed support
Plate and the support bar group of support plate surface two sides is symmetrically mounted at being used to support open-close type flaw detecting rack；Opening in the present invention
Box-like flaw detecting rack is fitted on support rod, is made of bottom flaw detecting rack, top flaw detecting rack and flaw detecting rack regulating part, specifically
Ground, bottom flaw detecting rack and top flaw detecting rack bottom right is supreme is slidably connected, flaw detecting rack regulating part is adjusted by bottom adjustment axis, top
Column adjusts connecting plate and adjusts motor form, and bottom adjustment axis and top adjustable column are separately mounted to bottom flaw detecting rack top
And top flaw detecting rack bottom end, it adjusts connecting plate one end and bottom adjustment axis is fixedly mounted, the other end is opposite with top adjustable column
It should locate to be equipped with arc-shaped poroid adjustment hole, be limited top adjustable column wherein by adjustment hole, while most importantly,
The radius of circle where adjustment hole be greater than bottom adjustment axis between the adjustable column of top in the flaw detecting rack circumferential direction of bottom at a distance from,
The design is so that adjust connecting plate when around the rotation of bottom adjustment axis, top flaw detecting rack can be in top adjustable column and adjustment hole
It matches lower realize of effect to slide and fix along bottom flaw detecting rack, and then certain folding is realized according to the demand of flaw detection pipeline
It adjusts.
Further, the bottom end of bottom flaw detecting rack is rotationally connected with the top of support rod, and is fitted with bracket folding
Regulating mechanism；Bracket retractable adjusting gear includes folding adjustment barrel, folding adjusting rod, elastic link, folding adjusting block and bottom
Portion's flaw detecting rack connecting rod；Folding adjustment barrel is vertically arranged to the surface middle part of support plate, and top is fitted with limit plate；Limit
The limit hole for presenting big lower toy trumpet shape is provided in the middle part of plate；Folding adjusting rod is installed on the inside of folding adjustment barrel straight up；
Elastic link is symmetrically arranged two, and bottom end is connected to the output end of folding adjusting rod, and the hole wall of top and limit hole is affixed
It closes, and is connected with folding adjusting block；One end of bottom flaw detecting rack connecting rod is coupled with folding adjusting block, and the other end and bottom are visited
Hurt frame to be connected.
Flaw detecting rack bottom end in bottom is designed as being rotatably installed in support bar top in the present invention, and is coupled bracket folding and adjusts
Mechanism is saved, the bracket retractable adjusting gear in the present invention is by folding adjustment barrel, folding adjusting rod, elastic link, folding adjusting block
And bottom flaw detecting rack connecting rod composition, folding adjustment barrel are vertically installed in the middle part of support plate, top is coupled limit plate, limits
Limit hole is provided in the middle part of plate, limit hole is poroid in up big and down small loudspeaker, and folding adjusting rod is vertically installed in folding adjustment barrel,
Elastic link fits in the hole wall of limit hole, the output end of bottom end connection folding adjusting rod, and top is connected with adjusting block, the design
Output end by opening and closing adjusting rod drives elastic link to move up and down, while elastic link mutually leans under the action of limit hole
Close or remote from further by institute's angulation between the lever regulated bottom flaw detecting rack of bottom flaw detecting rack being attached thereto and support rod
Degree further realizes whole folding and adjusts.
Further, the inside for opening and closing adjusting block is equipped with link slot；Bottom flaw detecting rack connecting rod is Y type connecting rod, open at one end
Corresponding with the position of link slot, the two sides of open at one end are extended with connecting rod protrusion towards link slot, and the other end and bottom are detected a flaw
The bottom end of frame is mutually fixed.
It will not influence the normal use of bottom flaw detecting rack connecting rod when moving up and down to guarantee to open and close adjusting block, bottom is visited
Hurting frame link design is Y type connecting rod, and open at one end is corresponding with the position of link slot, and the two sides of open at one end are prolonged towards link slot
Stretching has connecting rod raised, and the bottom end of the other end and bottom flaw detecting rack is mutually fixed.
Further, folding adjusting rod is servo telescopic rod；Adjusting motor is servo motor, is connected to folding adjusting rod
The same servo-driver.
Further, the bottom of support plate is also coupled support wheel.
Compared with prior art, the present invention can be according to the size and required flaw detection position of pipeline to be detected a flaw to open-close type
Flaw detecting rack carries out folding adjusting, has extremely strong adaptability, guarantees going on smoothly for carrying out flaw detection；Structure novel, adjusting simultaneously
It is convenient, using stabilization, there are good market prospects.
Detailed description of the invention
Fig. 1, structural schematic diagram of the invention；
The structural schematic diagram of open-close type flaw detecting rack in Fig. 2, the present invention；
The structural schematic diagram of bracket retractable adjusting gear in Fig. 3, the present invention.
Reference signs list: support plate 1, support rod 2, bottom flaw detecting rack 3, top flaw detecting rack 4, bottom adjustment axis 5, top
Adjustable column 6 adjusts connecting plate 7, adjusts motor 8, adjustment hole 9, electric machine support 10, folding adjustment barrel 11, folding adjusting rod 12, elasticity
Connecting rod 13, folding adjusting block 14, bottom flaw detecting rack connecting rod 15, limit plate 16, limit hole 17, support wheel 18, bracket folding are adjusted
Mechanism 19.
Specific embodiment
Technical solution provided by the invention is described in detail below with reference to specific embodiment, it should be understood that following specific
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.
It is as shown in Figure 1 structural schematic diagram of the invention, the present invention is a kind of open-close type bracket for pipeline inspection, packet
Include mobile bracket and open-close type flaw detecting rack.
Mobile bracket includes support plate 1 and support rod 2；Support plate 1 is horizontally disposed, and the bottom of support plate 1 is also coupled
Support wheel 18；Support rod 2 is symmetrically arranged on the surface two sides of support plate 1.
Open-close type flaw detecting rack matches installation, including bottom flaw detecting rack 3, top flaw detecting rack 4 and flaw detecting rack with support rod 2
Regulating part；Bottom flaw detecting rack 3 and top flaw detecting rack 4 are in arcuation, and the center of circle of place circle is respectively positioned on close to mobile bracket side,
And the top of top flaw detecting rack 4 and the top of bottom flaw detecting rack 3 are slidably connected；Such as Fig. 2, flaw detecting rack regulating part includes bottom tune
Nodal axisn 5, top adjustable column 6 adjust connecting plate 7 and adjust motor 8；Bottom adjustment axis 5 runs through and is rotatably installed in bottom flaw detection
The top of frame 3；Top adjustable column 6 is fixed on the bottom end of top flaw detecting rack 4, and top adjustable column 6 and bottom adjustment axis 5 are and bottom
The axis of circle is parallel where flaw detecting rack 3；Adjust connecting plate 7 one end and 5 phase of bottom adjustment axis fixed installation, the other end with top
Adjustable column 6 corresponding section in portion's is equipped with adjustment hole 9；Adjustment hole 9 is arcuate socket, and the radius of circle where it is greater than bottom adjustment axis
5 between top adjustable column 6 in 3 circumferential direction of bottom flaw detecting rack at a distance from；Motor 8 is adjusted to be mounted on by electric machine support 10
On bottom flaw detecting rack 3, and its output shaft and the coaxial mutually installation of bottom adjustment axis 5.
It is rotationally connected with the top of support rod 2 with the bottom end of upper bottom portion flaw detecting rack 3, and is fitted with bracket folding and adjusts
Mechanism 19；Such as Fig. 3, bracket retractable adjusting gear 19 includes folding adjustment barrel 11, folding adjusting rod 12, elastic link 13, folding
Adjusting block 14 and bottom flaw detecting rack connecting rod 15；Folding adjustment barrel 11 is vertically arranged to the surface middle part of support plate 1, and top is matched
Conjunction is equipped with limit plate 16；The limit hole 17 for presenting big lower toy trumpet shape is provided in the middle part of limit plate 16；It is vertical to open and close adjusting rod 12
It is installed on the inside of folding adjustment barrel 11 upwards；Elastic link 13 is symmetrically arranged two, and bottom end is connected to folding adjusting rod
12 output end, top and the hole wall of limit hole 17 fit, and are connected with folding adjusting block 14；Open and close the inside of adjusting block 14
Equipped with link slot；Bottom flaw detecting rack connecting rod 15 is Y type connecting rod, and open at one end is corresponding with the position of link slot, open at one end
Two sides are extended with connecting rod protrusion towards link slot, and the bottom end of the other end and bottom flaw detecting rack 3 is mutually fixed.
Wherein, folding adjusting rod 12 is servo telescopic rod；Adjusting motor 8 is servo motor, is connect with folding adjusting rod 12
To the same servo-driver.
Finally, it should be noted that property technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, those skilled in the art should understand that, modification or equivalent replacement of the technical solution of the present invention are made for those, and
The objective and range for not departing from the technical program, are intended to be within the scope of the claims of the invention.
Claims (5)
1. a kind of open-close type bracket for pipeline inspection, it is characterised in that: including mobile bracket and open-close type flaw detecting rack；Institute
Stating mobile bracket includes support plate (1) and support rod (2)；The support plate (1) is horizontally disposed；The support rod (2) is symmetrically pacified
Surface two sides loaded on support plate (1)；The open-close type flaw detecting rack matches installation, including bottom flaw detecting rack with support rod (2)
(3), top flaw detecting rack (4) and flaw detecting rack regulating part；The bottom flaw detecting rack (3) and top flaw detecting rack (4) are in arcuation,
The center of circle of place circle is respectively positioned on close to mobile bracket side, and the top on the top of top flaw detecting rack (4) and bottom flaw detecting rack (3)
End is slidably connected；The flaw detecting rack regulating part includes bottom adjustment axis (5), top adjustable column (6), adjusts connecting plate (7) and adjust
It saves motor (8)；The bottom adjustment axis (5) runs through and is rotatably installed in the top of bottom flaw detecting rack (3)；The top adjustable column
(6) be fixed on the bottom end of top flaw detecting rack (4), top adjustable column (6) and bottom adjustment axis (5) with bottom flaw detecting rack (3) institute
It is parallel in round axis；It is described adjust connecting plate (7) one end be mutually fixedly mounted with bottom adjustment axis (5), the other end with top
Adjustable column (6) corresponding section in portion's is equipped with adjustment hole (9)；The adjustment hole (9) is arcuate socket, and radius of circle is greater than where it
Bottom adjustment axis (5) between top adjustable column (6) in bottom flaw detecting rack (3) circumferential direction at a distance from；The adjusting motor
(8) be mounted on bottom flaw detecting rack (3) by electric machine support (10), and its output shaft with bottom adjustment axis (5) is coaxial lives in peace with each other
Dress.
2. a kind of open-close type bracket for pipeline inspection according to claim 1, it is characterised in that: the bottom flaw detection
The bottom end of frame (3) is rotationally connected with the top of support rod (2), and is fitted with bracket retractable adjusting gear (19)；The branch
Frame retractable adjusting gear (19) includes folding adjustment barrel (11), folding adjusting rod (12), elastic link (13), folding adjusting block
(14) and bottom flaw detecting rack connecting rod (15)；Folding adjustment barrel (11) is vertically arranged to the surface middle part of support plate (1),
Top is fitted with limit plate (16)；The limit hole (17) for presenting big lower toy trumpet shape is provided in the middle part of the limit plate (16)；
Folding adjusting rod (12) is installed on the inside of folding adjustment barrel (11) straight up；The elastic link (13) is symmetrically to set
Two set, bottom end are connected to the output end of folding adjusting rod (12), and the hole wall on top and limit hole (17) fits, and with open
Adjusting block (14) are closed to be connected；One end of the bottom flaw detecting rack connecting rod (15) is coupled with folding adjusting block (14), the other end
It is connected with bottom flaw detecting rack (3).
3. a kind of open-close type bracket for pipeline inspection according to claim 2, it is characterised in that: the folding is adjusted
The inside of block (14) is equipped with link slot；The bottom flaw detecting rack connecting rod (15) is Y type connecting rod, the position of open at one end and link slot
Corresponding, the two sides of open at one end are extended with connecting rod protrusion towards link slot, and the bottom end of the other end and bottom flaw detecting rack (3) is mutually solid
It is fixed.
4. a kind of open-close type bracket for pipeline inspection according to claim 2, it is characterised in that: the folding is adjusted
Bar (12) is servo telescopic rod；The adjusting motor (8) is servo motor, is connected to the same servo with folding adjusting rod (12)
Driver.
5. a kind of open-close type bracket for pipeline inspection according to claim 1, it is characterised in that: the support plate
(1) bottom is also coupled support wheel (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178301.8A CN109268654A (en) | 2018-10-10 | 2018-10-10 | Open-close type bracket for pipeline inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178301.8A CN109268654A (en) | 2018-10-10 | 2018-10-10 | Open-close type bracket for pipeline inspection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268654A true CN109268654A (en) | 2019-01-25 |
Family
ID=65196989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811178301.8A Pending CN109268654A (en) | 2018-10-10 | 2018-10-10 | Open-close type bracket for pipeline inspection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268654A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200380945Y1 (en) * | 2005-01-12 | 2005-04-07 | 서울검사 주식회사 | Radiation transmission inspection equipment for pipe |
| CN104730094A (en) * | 2015-04-07 | 2015-06-24 | 武汉理工大学 | Pipeline welding line radiographic inspection device |
| CN206531799U (en) * | 2017-03-10 | 2017-09-29 | 王蕾 | A kind of outdoor quick assembling radiation proof failure detector |
| CN108195857A (en) * | 2018-03-28 | 2018-06-22 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of auxiliary device for different-diameter pipeline non-destructive testing |
| CN108267125A (en) * | 2018-01-18 | 2018-07-10 | 河南城建学院 | The high-precision detection device of simple type based on FPGA |
| CN207840241U (en) * | 2018-07-06 | 2018-09-11 | 许文俊 | Metallographic analyzing specimen cutting apparatus based on irregular claw clamping piece |
| CN207921923U (en) * | 2018-03-20 | 2018-09-28 | 南京立方测绘科技有限公司 | Insolation regulation device for Sunlight Analysis simulator |
-
2018
- 2018-10-10 CN CN201811178301.8A patent/CN109268654A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200380945Y1 (en) * | 2005-01-12 | 2005-04-07 | 서울검사 주식회사 | Radiation transmission inspection equipment for pipe |
| CN104730094A (en) * | 2015-04-07 | 2015-06-24 | 武汉理工大学 | Pipeline welding line radiographic inspection device |
| CN206531799U (en) * | 2017-03-10 | 2017-09-29 | 王蕾 | A kind of outdoor quick assembling radiation proof failure detector |
| CN108267125A (en) * | 2018-01-18 | 2018-07-10 | 河南城建学院 | The high-precision detection device of simple type based on FPGA |
| CN207921923U (en) * | 2018-03-20 | 2018-09-28 | 南京立方测绘科技有限公司 | Insolation regulation device for Sunlight Analysis simulator |
| CN108195857A (en) * | 2018-03-28 | 2018-06-22 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of auxiliary device for different-diameter pipeline non-destructive testing |
| CN207840241U (en) * | 2018-07-06 | 2018-09-11 | 许文俊 | Metallographic analyzing specimen cutting apparatus based on irregular claw clamping piece |
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Application publication date: 20190125 |