CN113090893A - Measure high-speed camera's of granule motion trail photographic frame - Google Patents
Measure high-speed camera's of granule motion trail photographic frame Download PDFInfo
- Publication number
- CN113090893A CN113090893A CN202110397678.8A CN202110397678A CN113090893A CN 113090893 A CN113090893 A CN 113090893A CN 202110397678 A CN202110397678 A CN 202110397678A CN 113090893 A CN113090893 A CN 113090893A
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- wall
- fixed
- speed camera
- slide rail
- camera
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- 239000008187 granular material Substances 0.000 title claims description 4
- 239000002245 particle Substances 0.000 claims abstract description 27
- 238000002474 experimental method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2014—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a vertical axis
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- 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
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/56—Accessories
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- 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
- F16M2200/00—Details of stands or supports
- F16M2200/08—Foot or support base
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a photographic frame of a high-speed camera for measuring particle motion tracks, which comprises a fixed cloud platform, wherein a support column is fixedly arranged below the middle part of the fixed cloud platform, a telescopic cylinder is sleeved on the outer wall of the lower end of the support column, a first threaded hole is formed in one side wall of the telescopic cylinder, an adjusting knob is connected with the first threaded hole in a threaded manner, a tripod is arranged below the fixed cloud platform, a ball bearing is fixedly arranged on the fixed cloud platform, a rotary turntable is fixedly arranged on the ball bearing, an I-shaped slide rail is fixedly arranged on the rotary turntable, and a slide block is arranged on the outer wall of the I-shaped slide rail. Has the advantages that: through adjusting the height of the tripod, the pipeline at the experimental section just passes through the circle center of the I-shaped slide rail, the rotary turntable is rotated according to the experimental requirement, and then the slide block connected with the high-speed camera is moved to the position required by the experiment from the initial position of the I-shaped slide rail, so that the requirement of shooting the motion track of the particles in the pipeline at any position in the three-dimensional space is met.
Description
Technical Field
The invention relates to the technical field of large-particle solid-liquid delivery pump internal flow channel abrasion research tests, in particular to a camera stand of a high-speed camera for measuring particle motion tracks.
Background
In an experiment for researching the motion trail of solid particles in solid-liquid two-phase flow, the high-speed camera plays an important role in shooting the motion trail of the particles. However, the research on the movement characteristics of the particles is very limited, and the following technical problems are faced in the completion of the experiment for researching the movement locus of the solid particles in the solid-liquid two-phase flow: high speed cameras in PIV are difficult to fix and need to be fixed again each time shooting is carried out at an angle. The shooting direction of the traditional vertical photographic frame is single, and the motion tracks of particles in all directions required by experiments are difficult to effectively obtain. Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
The present invention is directed to a camera stand of a high-speed camera for measuring a movement track of particles, so as to solve the above problems in the related art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a measure photographic frame of high-speed camera of granule motion trail includes fixed cloud platform, fixed support column that is equipped with under the fixed cloud platform middle part, support column lower extreme outer wall cover is equipped with telescopic cylinder, first screw hole has been seted up to telescopic cylinder lateral wall, just first screw hole female connection has adjust knob, fixed cloud platform has the tripod, the fixed ball bearing that is equipped with on the fixed cloud platform, the fixed rotatory carousel that is equipped with on the ball bearing, the fixed I slide rail that is equipped with on the rotatory carousel, I slide rail outer wall slides and is equipped with the slider, just second screw hole has been seted up to slider one side, second screw hole female connection has the slider knob, the slider is kept away from the fixed high-speed camera that is equipped with of slider knob one side outer wall.
Furthermore, the outer wall of the supporting column is provided with an external thread, and the inner wall of the telescopic cylinder is provided with an internal thread matched with the external thread.
Further, the tripod includes installing support, bolt, nut and bracing piece, fixed cloud platform is fixed to be equipped with quantity for three installing support along circumferencial direction equidistant down, be equipped with the bolt between the installing support both sides wall, just bolt one end outer wall threaded connection has the nut, the fixed bracing piece that is equipped with of bolt middle part outer wall.
Further, ball bearing includes bearing outer ring, bearing inner ring and ball, bearing outer ring cover is established bearing inner ring outer wall, just the bearing outer ring with install a plurality of balls between the bearing inner ring, the bearing outer ring with fixed cloud platform fixed connection, the bearing inner ring with rotatory carousel fixed connection.
Furthermore, the section of the I-shaped slide rail is arranged to be in an I-shaped structure, the I-shaped slide rail is arranged to be in a 320-degree arc-shaped structure, and a first dial with the range of 0-320 degrees and the precision of 1 degree is marked on the outer wall of one side of the I-shaped slide rail.
Furthermore, the upper surface of the fixed cloud deck is marked with a second dial with the range of 0-360 degrees and the precision of 1 degree.
Compared with the prior art, the invention has the following beneficial effects: through adjusting the height of the tripod, the pipeline at the experimental section just passes through the circle center of the I-shaped slide rail, the rotary turntable is rotated according to the experimental requirement, and then the slide block connected with the high-speed camera is moved to the position required by the experiment from the initial position of the I-shaped slide rail, so that the requirement of shooting the motion track of the particles in the pipeline at any position in the three-dimensional space is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a camera mount of a high-speed camera for measuring a particle motion trajectory according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a tripod in a camera stand of a high-speed camera for measuring a movement track of particles according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an I-shaped slide rail in a camera mount of a high-speed camera for measuring a particle motion track according to an embodiment of the invention;
FIG. 4 is a cross-sectional view of an I-shaped slide rail in a camera mount of a high-speed camera for measuring a particle motion trail according to an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a slide block in a camera mount of a high-speed camera for measuring a particle motion trajectory according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a ball bearing structure in a camera frame of a high-speed camera for measuring a particle motion trajectory according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second dial in a camera mount of a high-speed camera for measuring a movement track of particles according to an embodiment of the invention.
Reference numerals:
1. fixing the holder; 2. a support pillar; 3. a telescopic cylinder; 4. a first threaded hole; 5. adjusting a knob; 6. a tripod; 7. a ball bearing; 8. rotating the turntable; 9. an I-shaped sliding rail; 10. a slider; 11. a second threaded hole; 12. a slider knob; 13. a high-speed camera; 14. mounting a bracket; 15. a bolt; 16. a nut; 17. a support bar; 18. a bearing inner ring; 19. a bearing outer ring; 20. a ball bearing; 21. a first dial; 22. a second dial.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
the first embodiment is as follows:
referring to fig. 1 to 7, a camera stand of a high-speed camera for measuring a movement track of particles according to an embodiment of the present invention includes a fixed stage 1, a support column 2 is fixedly arranged below the middle part of the fixed cloud deck 1, a telescopic cylinder 3 is sleeved on the outer wall of the lower end of the support column 2, a first threaded hole 4 is formed in one side wall of the telescopic cylinder 3, and the first threaded hole 4 is internally threaded with an adjusting knob 5, a tripod 6 is arranged below the fixed tripod head 1, the fixed cloud deck 1 is fixedly provided with a ball bearing 7, the ball bearing 7 is fixedly provided with a rotating turntable 8, an I-shaped sliding rail 9 is fixedly arranged on the rotary turntable 8, a sliding block 10 is arranged on the outer wall of the I-shaped sliding rail 9 in a sliding manner, a second threaded hole 11 is formed in one side of the sliding block 10, a sliding block knob 12 is connected with the second threaded hole 11 in an internal thread manner, the outer wall of one side, far away from the slider knob 12, of the slider 10 is fixedly provided with a high-speed camera 13.
According to the scheme, the height of the tripod 6 is adjusted, so that a pipeline at an experimental section just passes through the center of the I-shaped slide rail 9, the rotary turntable 8 is rotated according to experimental requirements, and the slide block 10 connected with the high-speed camera 13 is moved to a position required by an experiment from the initial position of the I-shaped slide rail 9, so that the requirement of shooting the motion track of particles in the pipeline at any position in a three-dimensional space is met.
Example two:
referring to fig. 1 and 2, for the supporting column 2, an external thread is processed on the outer wall of the supporting column 2, and an internal thread matched with the external thread is processed on the inner wall of the telescopic cylinder 3; for the tripod 6, the tripod 6 comprises mounting brackets 14, bolts 15, nuts 16 and supporting rods 17, the three mounting brackets 14 are fixedly arranged at equal intervals along the circumferential direction below the fixed tripod head 1, the bolts 15 are arranged between two side walls of the mounting brackets 14, the nuts 16 are connected to the outer wall of one end of each bolt 15 in a threaded manner, and the supporting rods 17 are fixedly arranged on the outer wall of the middle of each bolt 15.
According to the scheme of the invention, the height of the fixed cloud deck 1 can be adjusted by rotating the telescopic cylinder 3, the support column 2 in the telescopic cylinder 3 can be fixed by screwing the adjusting knob 5, the support rod 17 can rotate along the bolt 15, so that the angle of the support rod 17 can be adjusted according to the height of the fixed cloud deck 1, and the angle of the support rod 17 can be fixed by screwing the nut 16.
Example three:
referring to fig. 1, 3, 6 and 7, for the ball bearing 7, the ball bearing 7 includes a bearing outer ring 19, a bearing inner ring 18 and balls 20, the bearing outer ring 19 is sleeved on the outer wall of the bearing inner ring 18, a plurality of balls 20 are installed between the bearing outer ring 19 and the bearing inner ring 18, the bearing outer ring 19 is fixedly connected with the fixed pan tilt 1, and the bearing inner ring 18 is fixedly connected with the rotating turntable 8; for the I-shaped slide rail 9, the section of the I-shaped slide rail 9 is arranged to be in an I-shaped structure, the I-shaped slide rail 9 is arranged to be in a 320-degree arc structure, and the outer wall of one side of the I-shaped slide rail 9 is marked with a first dial 21 with the range of 0-320 degrees and the precision of 1 degree; for the fixed head 1, the upper surface of said fixed head 1 is marked with a second scale 22 ranging from 0 ° to 360 ° with an accuracy of 1 °.
According to the scheme of the invention, the rotating turntable 8 can rotate relative to the fixed cloud deck 1 by arranging the ball bearing 7, the rotating angle of the sliding block 10 can be conveniently and intuitively known by arranging the first dial 21, and the rotating angle of the rotating turntable 8 relative to the initial position can be conveniently and intuitively known by arranging the second dial 22.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the telescopic cylinder 3 is provided with the adjusting knob 5, the height of the fixed tripod head 1 can be changed by changing the height of the support column 2 outside the telescopic cylinder 3 and screwing the adjusting knob 5, one end of each of three support rods 17 of the tripod is connected with the fixed tripod head 1, the other end of each of the three support rods 17 is arranged on the ground, the opening angle of the three support rods 17 can be changed by tightening the nuts 16, and therefore the height of the fixed tripod head 1 can be changed together with the support column 2.
The upper surface of a fixed tripod head 1 above a tripod 6 is provided with a first dial 21 with the range of 0-360 degrees and the precision of 1 degree, a rotary turntable 8 is arranged on the tripod 6 in a ball bearing 7 mode, the central point of the upper surface of the tripod 6 is consistent, 320-degree I-shaped slide rails 9 are welded above the rotary turntable 8 (the I-shaped slide rails 9 with the precision of 320 degrees are selected because a pipeline needs to be arranged in the middle of a track according to actual conditions), the starting point of the connected part is the 0-degree datum point and the precision of 1 degree, the inside of the track of the I-shaped slide rails 9 is I-shaped, and a slide block 10 provided with a high-speed camera 13 is arranged at the 0-degree starting point of.
According to the experimental requirements, a high-speed camera 13 meeting the experimental shooting requirements is selected to be fixed on a sliding block 10, the height of a tripod 6 is adjusted according to the method, so that a pipeline enters from a gap of an I-shaped sliding rail 9 and passes through the center of the I-shaped sliding rail 9, then a rotary table 8 is rotated according to scale values, then the sliding block 10 is moved, so that the high-speed camera 13 reaches the position required by the experimental shooting, a knob of the sliding block 10 is screwed, the high-speed camera 13 can continuously shoot the particles in the pipeline, and the purpose of continuously shooting the particle motion track in the pipeline at any position in a three-dimensional space can be basically achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a measure camera shooting frame of high-speed camera of granule motion trail, its characterized in that, includes fixed cloud platform (1), fixed cloud platform (1) middle part is fixed down and is equipped with support column (2), support column (2) lower extreme outer wall cover is equipped with telescopic cylinder (3), first screw hole (4) have been seted up to telescopic cylinder (3) a lateral wall, just first screw hole (4) female connection has adjust knob (5), fixed cloud platform (1) has tripod (6), fixed cloud platform (1) is gone up and is fixed ball bearing (7) is equipped with, fixed rotating disc (8) that are equipped with on ball bearing (7), fixed I-shaped slide rail (9) that is equipped with on rotating disc (8), I-shaped slide rail (9) outer wall slides and is equipped with slider (10), just second screw hole (11) have been seted up to slider (10) one side, the second threaded hole (11) is internally connected with a sliding block knob (12), and the outer wall of one side, far away from the sliding block knob (12), of the sliding block (10) is fixedly provided with a high-speed camera (13).
2. The camera support of the high-speed camera (13) for measuring the particle motion trail of claim 1, wherein the outer wall of the supporting column (2) is processed with an external thread, and the inner wall of the telescopic cylinder (3) is processed with an internal thread matched with the external thread.
3. The camera stand of the high-speed camera (13) for measuring the motion trail of the particles, as claimed in claim 1, wherein the tripod (6) comprises mounting brackets (14), bolts (15), nuts (16) and support rods (17), the three mounting brackets (14) are fixedly arranged under the fixed tripod head (1) at equal intervals along the circumferential direction, the bolts (15) are arranged between two side walls of the mounting brackets (14), the nuts (16) are connected to the outer wall of one end of each bolt (15) in a threaded manner, and the support rods (17) are fixedly arranged on the outer wall of the middle part of each bolt (15).
4. The camera rig of the high-speed camera (13) for measuring the movement locus of particles according to claim 1, wherein the ball bearing (7) comprises a bearing outer ring (19), a bearing inner ring (18) and balls (20), the bearing outer ring (19) is sleeved on the outer wall of the bearing inner ring (18), a plurality of balls (20) are installed between the bearing outer ring (19) and the bearing inner ring (18), the bearing outer ring (19) is fixedly connected with the fixed tripod head (1), and the bearing inner ring (18) is fixedly connected with the rotating turntable (8).
5. The camera stand of the high-speed camera (13) for measuring the particle motion trail according to claim 1, wherein the cross section of the i-shaped slide rail (9) is arranged to be in an i-shaped structure, the i-shaped slide rail (9) is arranged to be in a 320-degree circular arc structure, and a first dial (21) with the precision of 1 degree is marked on the outer wall of one side of the i-shaped slide rail (9).
6. Camera-frame of a high-speed camera (13) for measuring the movement trajectory of particles according to claim 1, characterized in that the upper surface of the fixed head (1) is marked with a second scale (22) ranging from 0 ° to 360 ° with an accuracy of 1 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110397678.8A CN113090893A (en) | 2021-04-13 | 2021-04-13 | Measure high-speed camera's of granule motion trail photographic frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110397678.8A CN113090893A (en) | 2021-04-13 | 2021-04-13 | Measure high-speed camera's of granule motion trail photographic frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113090893A true CN113090893A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110397678.8A Pending CN113090893A (en) | 2021-04-13 | 2021-04-13 | Measure high-speed camera's of granule motion trail photographic frame |
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| CN (1) | CN113090893A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202746869U (en) * | 2012-08-20 | 2013-02-20 | 重庆金母带科技有限公司 | Rotating slide rail device for moving camera |
| CN103277640A (en) * | 2013-06-26 | 2013-09-04 | 保定维特瑞光电能源科技有限公司 | Vehicle-mounted two-shaft photographing tripod head |
| US20160169443A1 (en) * | 2014-12-16 | 2016-06-16 | Paul Andrew Keller | Telescoping Tripod for Smartphones and Portable Media Players |
| CN106545730A (en) * | 2017-01-05 | 2017-03-29 | 武汉微梦文化科技有限公司 | A kind of spider and photographic attachment |
| CN206363598U (en) * | 2016-12-27 | 2017-07-28 | 湖南信息职业技术学院 | A kind of English teaching aid |
| CN206754759U (en) * | 2017-04-26 | 2017-12-15 | 天津职业技术师范大学 | A kind of Multifunctional photography tripod |
| CN109702402A (en) * | 2019-03-07 | 2019-05-03 | 江苏省特种设备安全监督检验研究院 | A kind of device and technique carrying out pipeline welding using intermediate casing |
| CN209819140U (en) * | 2019-04-16 | 2019-12-20 | 宫田宇 | Double-arm slideway tripod |
| CN211577635U (en) * | 2019-12-23 | 2020-09-25 | 云南工商学院 | Shooting device for digital media art design |
-
2021
- 2021-04-13 CN CN202110397678.8A patent/CN113090893A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202746869U (en) * | 2012-08-20 | 2013-02-20 | 重庆金母带科技有限公司 | Rotating slide rail device for moving camera |
| CN103277640A (en) * | 2013-06-26 | 2013-09-04 | 保定维特瑞光电能源科技有限公司 | Vehicle-mounted two-shaft photographing tripod head |
| US20160169443A1 (en) * | 2014-12-16 | 2016-06-16 | Paul Andrew Keller | Telescoping Tripod for Smartphones and Portable Media Players |
| CN206363598U (en) * | 2016-12-27 | 2017-07-28 | 湖南信息职业技术学院 | A kind of English teaching aid |
| CN106545730A (en) * | 2017-01-05 | 2017-03-29 | 武汉微梦文化科技有限公司 | A kind of spider and photographic attachment |
| CN206754759U (en) * | 2017-04-26 | 2017-12-15 | 天津职业技术师范大学 | A kind of Multifunctional photography tripod |
| CN109702402A (en) * | 2019-03-07 | 2019-05-03 | 江苏省特种设备安全监督检验研究院 | A kind of device and technique carrying out pipeline welding using intermediate casing |
| CN209819140U (en) * | 2019-04-16 | 2019-12-20 | 宫田宇 | Double-arm slideway tripod |
| CN211577635U (en) * | 2019-12-23 | 2020-09-25 | 云南工商学院 | Shooting device for digital media art design |
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| PB01 | Publication | ||
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Application publication date: 20210709 |