CN213576619U - Infrared distance measuring equipment for engineering geological investigation - Google Patents
Infrared distance measuring equipment for engineering geological investigation Download PDFInfo
- Publication number
- CN213576619U CN213576619U CN202022460807.7U CN202022460807U CN213576619U CN 213576619 U CN213576619 U CN 213576619U CN 202022460807 U CN202022460807 U CN 202022460807U CN 213576619 U CN213576619 U CN 213576619U
- Authority
- CN
- China
- Prior art keywords
- plate
- lifting
- infrared distance
- electric cylinder
- rod
- 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.)
- Expired - Fee Related
Links
- 238000011835 investigation Methods 0.000 title claims description 4
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000000872 buffer Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses an infrared distance measuring device for engineering geological exploration, which comprises a bracket component, a lifting component and a measuring component; the lifting component is arranged on the bracket component; the measuring component is arranged on the lifting component. The utility model realizes the automatic adjustment of the gravity center by arranging the bracket component and the expansion and contraction of the telescopic rod; through the slip of slide bar, with the help of level sensor, can realize the height-adjustable of the different positions of support frame, under abominable measuring condition, if: when the ground is uneven, the measuring assembly can be kept horizontal through automatic adjustment; the height of the measuring assembly can be automatically adjusted by arranging the lifting assembly; by arranging the measuring assembly, the automatic adjustment of the azimuth angle and the pitch angle in the horizontal plane can be realized; by arranging the anti-electromagnetic interference shell, interference can be reduced, and the measurement precision is increased.
Description
Technical Field
The utility model relates to an engineering survey field especially relates to an infrared distance measuring equipment is used in engineering geology reconnaissance.
Background
An infrared distance meter is a precise measuring instrument and is widely applied to various fields. The range finder may be classified into an ultrasonic range finder, an infrared range finder, and a laser range finder. The infrared distance measuring instrument is a laser infrared distance measuring instrument, namely a laser distance measuring instrument. An infrared distance measuring instrument is an instrument for precisely measuring distance by using modulated infrared light, and the measuring range is generally 1-5 kilometers.
Infrared range finders have also gained widespread use in the field of engineering geological exploration. When engineering geology reconnaissance, environmental condition is comparatively abominable, and not only the topography is complicated, can also appear bad conditions such as strong wind, rainwater sometimes, and it is long still to have electromagnetic interference, influences the precision of measurement. The existing infrared distance measuring equipment for engineering geological exploration has low automation degree and poor environmental adaptability.
In order to solve the problem, the application provides an infrared distance measuring equipment for engineering geological exploration.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides an infrared distance measuring equipment is used in engineering geology reconnaissance. The utility model realizes the automatic adjustment of the gravity center by arranging the bracket component and the expansion and contraction of the telescopic rod; the height of the support frame at different positions can be adjusted by sliding the sliding rod and using the level sensor, and the measuring component can be kept horizontal by automatic adjustment under severe measuring conditions; the height of the measuring assembly can be automatically adjusted by arranging the lifting assembly; through setting up anti-electromagnetic interference's casing, can prevent the interference, increase the precision of measurement.
(II) technical scheme
In order to solve the problems, the utility model provides an infrared distance measuring device for engineering geological exploration, which comprises a bracket component, a lifting component and a measuring component; the lifting component is arranged on the bracket component; the measuring component is arranged on the lifting component; the bracket assembly comprises a supporting frame, a sliding rod, a first electric cylinder, a mounting plate, a telescopic rod, a second electric cylinder and a top plate; the support frame is of a hollow structure; one end of the sliding rod extends into the hollow part of the support frame and is connected with the hollow part in a sliding way, and the other end of the sliding rod is connected with the lower end of the top plate in a rotating way; the working end of the first electric cylinder is connected with the middle end of the sliding rod, and the other end of the first electric cylinder is connected with the supporting frame; the mounting plate is horizontally arranged on the inner side of the support frame, and a slide way is arranged on the side wall of the mounting plate; one end of the telescopic rod extends into the slide way and is connected with the slide way in a sliding way, and the other end of the telescopic rod is connected with the support frame in a rotating way; the second electric cylinder is arranged on the mounting plate, and the working end of the second electric cylinder is connected with the middle end of the telescopic rod; the lifting assembly comprises an elastic buffer piece, a lifting plate, a first motor, a transmission rod, a push rod, a third electric cylinder and a rotating plate; one end of the elastic buffer piece is connected with the top plate, and the other end of the elastic buffer piece is connected with the lifting plate; the lifting plate is horizontally arranged and positioned above the top plate, and a first through hole is formed in the center of the lifting plate; the rotating plate is positioned above the lifting plate and is connected with the lifting plate in a sliding way; the first motor is arranged on the lifting plate and is positioned below the lifting plate, and an extension shaft of the first motor penetrates through a first through hole formed in the lifting plate and is connected with the rotating plate; one end of the transmission rod is rotatably connected with the top plate, and the other end of the transmission rod is slidably connected with the lifting plate; one end of the push rod is rotatably connected with the lifting plate, the other end of the push rod is slidably connected with the top plate, and the middle end of the push rod is also rotatably connected with the middle end of the transmission rod; the third electric cylinder is arranged on the top plate, and the working end of the third electric cylinder is connected with the sliding end of the push rod; the measuring assembly comprises a first supporting plate, a second motor and an infrared distance meter body; the first supporting plate is vertically arranged on the rotating plate and is provided with a second through hole; the second motor is arranged on the first supporting plate and positioned on the outer side of the first supporting plate, and an extending shaft of the second motor penetrates through the second through hole to be connected with one end of the infrared distance meter body; the second supporting plate is vertically arranged on the rotating plate and is parallel to the first supporting plate; the other end of the infrared distance measuring instrument body is rotatably connected with the second supporting plate.
Preferably, the support frame is also provided with casters; the truckle is located the support frame bottom, and is one-way truckle.
Preferably, the mutually matched slide way, the telescopic rod and the second electric cylinder are provided with a plurality of groups.
Preferably, the mutually cooperating transmission rod and push rod are provided in groups.
Preferably, the elastomeric buffers are provided in sets.
Preferably, a shell is arranged outside the infrared distance meter body; the shell is made of an aluminum foil material capable of resisting electromagnetic interference, and an opening is formed in the shell; the opening is concentric with the measuring port of the infrared distance meter body.
Preferably, the rotating plate is also provided with a horizontal sensor; the horizontal sensor is positioned above the rotating plate.
Firstly, the utility model can realize the automatic adjustment of the gravity center through the expansion and contraction of the telescopic rod by arranging the bracket component; through the slip of slide bar, with the help of level sensor, can realize the height-adjustable of the different positions of support frame, under abominable measuring condition, still accessible automatically regulated keeps measuring component to keep the level.
Two, the utility model discloses a set up lifting unit, can realize the high automatically regulated of measuring subassembly.
Thirdly, the utility model discloses a set up measuring component, can realize the automatically regulated of the azimuth in the horizontal plane and the angle of pitch.
Fourthly, the utility model discloses a set up anti-electromagnetic interference casing, can the jam-proof, increase the measuring precision.
Drawings
Fig. 1 is the utility model provides a cross-sectional view of infrared distance measuring equipment for engineering geology reconnaissance.
Fig. 2 is the utility model provides a pair of infrared distance measuring equipment's for engineering geology reconnaissance structural schematic diagram.
Fig. 3 is the utility model provides a section view of mounting panel in infrared distance measuring equipment for engineering geology reconnaissance.
The attached drawings are marked as follows: 1. a bracket assembly; 11. a support frame; 111. a caster wheel; 12. a slide bar; 13. a first electric cylinder; 14. mounting a plate; 141. a slideway; 15. a telescopic rod; 16. a second electric cylinder; 17. a top plate; 2. a lifting assembly; 21. an elastic buffer member; 22. a lifting plate; 221. a first through hole; 23. a first motor; 24. a transmission rod; 25. a push rod; 26. a third electric cylinder; 27. rotating the plate; 3. a measurement assembly; 31. a first support plate; 311. a second through hole; 32. a second support plate; 33. a second motor; 34. an infrared distance meter body; 341. a housing; 342. an opening; 35. a level sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1-3, the present invention provides an infrared distance measuring device for engineering geological exploration, which comprises a support assembly 1, a lifting assembly 2 and a measuring assembly 3; the lifting component 2 is arranged on the bracket component 1; the measuring component 3 is arranged on the lifting component 2; the bracket assembly 1 comprises a support frame 11, a sliding rod 12, a first electric cylinder 13, a mounting plate 14, an expansion rod 15, a second electric cylinder 16 and a top plate 17; the support frame 11 is a hollow structure; one end of the sliding rod 12 extends into the hollow part of the support frame 11 and is connected with the hollow part in a sliding way, and the other end of the sliding rod is connected with the lower end of the top plate 17 in a rotating way; the working end of the first electric cylinder 13 is connected with the middle end of the sliding rod 12, and the other end of the first electric cylinder is connected with the support frame 11; the mounting plate 14 is horizontally arranged at the inner side of the support frame 11, and a slide rail 141 is arranged on the side wall of the mounting plate; one end of the telescopic rod 15 extends into the slideway 141 and is connected with the slideway in a sliding way, and the other end of the telescopic rod is connected with the support frame 11 in a rotating way; the second electric cylinder 16 is arranged on the mounting plate 14, and the working end of the second electric cylinder is connected with the middle end of the telescopic rod 15; the lifting assembly 2 comprises an elastic buffer 21, a lifting plate 22, a first motor 23, a transmission rod 24, a push rod 25, a third electric cylinder 26 and a rotating plate 27; one end of the elastic buffer 21 is connected with the top plate 17, and the other end is connected with the lifting plate 22; the lifting plate 22 is horizontally arranged and positioned above the top plate 17, and the center of the lifting plate is provided with a first through hole 221; the rotating plate 27 is positioned above the lifting plate 22 and is connected with the lifting plate in a sliding way; the first motor 23 is arranged on the lifting plate 22 and positioned below the lifting plate 22, and an extending shaft of the first motor passes through a first through hole 221 formed in the lifting plate 22 and is connected with the rotating plate 27; one end of the transmission rod 24 is rotatably connected with the top plate 17, and the other end is slidably connected with the lifting plate 22; one end of the push rod 25 is rotatably connected with the lifting plate 22, the other end of the push rod is slidably connected with the top plate 17, and the middle end of the push rod is also rotatably connected with the middle end of the transmission rod 24; the third electric cylinder 26 is arranged on the top plate 17, and the working end of the third electric cylinder is connected with the sliding end of the push rod 25; the measuring component 3 comprises a first supporting plate 31, a second supporting plate 32, a second motor 33 and an infrared distance meter body 34; the first supporting plate 31 is vertically arranged on the rotating plate 27 and is provided with a second through hole 311; the second motor 33 is arranged on the first support plate 31 and positioned at the outer side thereof, and an extending shaft thereof passes through the second through hole 311 and is connected with one end of the infrared distance measuring instrument body 34; the second supporting plate 32 is vertically arranged on the rotating plate 27 and is parallel to the first supporting plate 31; the other end of the infrared distance meter body 34 is rotatably connected to the second support plate 32.
In an alternative embodiment, the supporting frame 11 is further provided with casters 111; the caster 111 is located at the bottom end of the supporting frame 11 and is a one-way caster.
In an alternative embodiment, the cooperating slide 141, telescopic rod 15 and second electric cylinder 16 are provided in a plurality of sets.
In an alternative embodiment, the cooperating drive rod 24 and push rod 25 are provided in a plurality of sets.
In an alternative embodiment, the elastomeric bumpers 21 are provided in sets.
In an alternative embodiment, a housing 341 is provided outside the infrared distance meter body 34; the housing 341 is made of an aluminum foil material resistant to electromagnetic interference, and is provided with an opening 342; opening 342 is concentric with the measurement port of infrared rangefinder body 34.
In an alternative embodiment, the rotating plate 27 is further provided with a level sensor 35; the level sensor 35 is located above the rotating plate 27.
When the utility model works, the level sensor 35 can feed back whether the ground where the device is located is level or not, and the sliding rod 12 slides in the hollow part of the supporting frame 11 through the driving of the first electric cylinder 13, so that the position height of the local part is adjusted, and the levelness is automatically adjusted; if severe wind and severe weather occur, the telescopic rod 15 can be adjusted to stretch through the second electric cylinder 16, so that the gravity center is automatically reduced, and the stability during measurement is kept; if the height is not measured enough, the third electric cylinder 26 can be contracted to drive the push rod 25 to move rightwards, so as to drive the transmission rod 24 to move, so that the measuring component 3 is lifted, and the height is adjusted. The elastic buffer member 21 can play a good buffering role when adjusting the height, and effectively ensure the stability during measurement. When the measuring component is used for measuring, the first motor 23 drives the rotating plate 27 to rotate, so that the azimuth angle in the horizontal range is set; the second motor 33 can drive the infrared distance meter body 34 to rotate, so as to set the pitch angle during measurement; casing 341 adopts anti electromagnetic interference's material to make, can effectively reduce the electromagnetic interference in the environment, and then improves the precision when measuring, simultaneously, also can rain-proof water and dust, has played better guard action to infrared distance meter body.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. The infrared distance measuring equipment for engineering geological exploration is characterized by comprising a support assembly (1), a lifting assembly (2) and a measuring assembly (3); the lifting component (2) is arranged on the bracket component (1); the measuring component (3) is arranged on the lifting component (2);
the bracket assembly (1) comprises a supporting frame (11), a sliding rod (12), a first electric cylinder (13), a mounting plate (14), an expansion rod (15), a second electric cylinder (16) and a top plate (17); the support frame (11) is of a hollow structure; one end of the sliding rod (12) extends into the hollow part of the support frame (11) and is connected with the hollow part in a sliding way, and the other end of the sliding rod is connected with the lower end of the top plate (17) in a rotating way; the working end of the first electric cylinder (13) is connected with the middle end of the sliding rod (12), and the other end of the first electric cylinder is connected with the support frame (11); the mounting plate (14) is horizontally arranged on the inner side of the support frame (11), and a slide way (141) is arranged on the side wall of the mounting plate; one end of the telescopic rod (15) extends into the slide way (141) and is connected with the slide way in a sliding way, and the other end of the telescopic rod is connected with the support frame (11) in a rotating way; the second electric cylinder (16) is arranged on the mounting plate (14), and the working end of the second electric cylinder is connected with the middle end of the telescopic rod (15);
the lifting assembly (2) comprises an elastic buffer piece (21), a lifting plate (22), a first motor (23), a transmission rod (24), a push rod (25), a third electric cylinder (26) and a rotating plate (27); one end of the elastic buffer piece (21) is connected with the top plate (17), and the other end is connected with the lifting plate (22); the lifting plate (22) is horizontally arranged and positioned above the top plate (17), and the center of the lifting plate is provided with a first through hole (221); the rotating plate (27) is positioned above the lifting plate (22) and is connected with the lifting plate in a sliding way; the first motor (23) is arranged on the lifting plate (22) and is positioned below the lifting plate (22), and an extending shaft of the first motor passes through a first through hole (221) formed in the lifting plate (22) and is connected with the rotating plate (27); one end of a transmission rod (24) is rotationally connected with the top plate (17), and the other end of the transmission rod is connected with the lifting plate (22) in a sliding way; one end of a push rod (25) is rotatably connected with the lifting plate (22), the other end of the push rod is slidably connected with the top plate (17), and the middle end of the push rod is also rotatably connected with the middle end of the transmission rod (24); the third electric cylinder (26) is arranged on the top plate (17), and the working end of the third electric cylinder is connected with the sliding end of the push rod (25);
the measuring component (3) comprises a first supporting plate (31), a second supporting plate (32), a second motor (33) and an infrared distance meter body (34); the first supporting plate (31) is vertically arranged on the rotating plate (27) and is provided with a second through hole (311); the second motor (33) is arranged on the first supporting plate (31) and positioned on the outer side of the first supporting plate, and an extending shaft of the second motor penetrates through the second through hole (311) to be connected with one end of the infrared distance meter body (34); the second supporting plate (32) is vertically arranged on the rotating plate (27) and is parallel to the first supporting plate (31); the other end of the infrared distance measuring instrument body (34) is rotatably connected with the second support plate (32).
2. The infrared distance measuring device for engineering geological survey as claimed in claim 1, wherein the supporting frame (11) is further provided with casters (111); the caster (111) is positioned at the bottom end of the support frame (11) and is a one-way caster.
3. The infrared distance measuring apparatus for engineering geological investigation of claim 1, characterized in that the cooperating slide (141), telescopic rod (15) and second electric cylinder (16) are provided in a plurality of sets.
4. An infrared distance measuring apparatus for engineering geological investigation according to claim 1, characterized in that the transmission rod (24) and the push rod (25) cooperating with each other are provided in a plurality of sets.
5. Infrared ranging apparatus for engineering geological surveys according to claim 1, characterized in that said elastic buffers (21) are provided in groups.
6. The infrared distance measuring apparatus for engineering geological survey as claimed in claim 1, wherein a housing (341) is provided outside the infrared distance measuring instrument body (34); the shell (341) is made of an aluminum foil material which can resist electromagnetic interference, and is provided with an opening (342); the opening (342) is concentric with the measurement port of the infrared rangefinder body (34).
7. The infrared distance measuring device for engineering geological survey according to claim 1, characterized in that the rotating plate (27) is further provided with a level sensor (35); the level sensor (35) is located above the rotating plate (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022460807.7U CN213576619U (en) | 2020-10-29 | 2020-10-29 | Infrared distance measuring equipment for engineering geological investigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022460807.7U CN213576619U (en) | 2020-10-29 | 2020-10-29 | Infrared distance measuring equipment for engineering geological investigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213576619U true CN213576619U (en) | 2021-06-29 |
Family
ID=76531477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022460807.7U Expired - Fee Related CN213576619U (en) | 2020-10-29 | 2020-10-29 | Infrared distance measuring equipment for engineering geological investigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213576619U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447942A (en) * | 2021-08-31 | 2021-09-28 | 深圳市众安邦智能科技有限公司 | Wireless distance measuring device capable of tracking target |
| CN113916202A (en) * | 2021-10-14 | 2022-01-11 | 郑州智象测绘信息技术有限公司 | Mapping instrument positioning device for engineering mapping |
| CN115164020A (en) * | 2022-07-07 | 2022-10-11 | 山东省煤田地质局第二勘探队 | Geological exploration instrument leveling device and using method thereof |
| CN118151182A (en) * | 2024-05-11 | 2024-06-07 | 中国市政工程西南设计研究总院有限公司 | Measuring device for engineering investigation |
-
2020
- 2020-10-29 CN CN202022460807.7U patent/CN213576619U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447942A (en) * | 2021-08-31 | 2021-09-28 | 深圳市众安邦智能科技有限公司 | Wireless distance measuring device capable of tracking target |
| CN113916202A (en) * | 2021-10-14 | 2022-01-11 | 郑州智象测绘信息技术有限公司 | Mapping instrument positioning device for engineering mapping |
| CN113916202B (en) * | 2021-10-14 | 2024-04-05 | 上海海韵勘设咨询管理有限公司 | Mapping instrument positioning device for engineering mapping |
| CN115164020A (en) * | 2022-07-07 | 2022-10-11 | 山东省煤田地质局第二勘探队 | Geological exploration instrument leveling device and using method thereof |
| CN115164020B (en) * | 2022-07-07 | 2024-04-30 | 山东省煤田地质局第二勘探队 | Geological prospecting instrument leveling device and using method thereof |
| CN118151182A (en) * | 2024-05-11 | 2024-06-07 | 中国市政工程西南设计研究总院有限公司 | Measuring device for engineering investigation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213576619U (en) | Infrared distance measuring equipment for engineering geological investigation | |
| KR102035044B1 (en) | Image processing system having function of distortion image correction | |
| CN207636042U (en) | A kind of contact line compensation device position information acquisition device | |
| CN111792032A (en) | Unmanned aerial vehicle is used in topographic survey and drawing | |
| CN115930844A (en) | Land area surveying instrument for land reclamation | |
| CN213384765U (en) | A camera sampling circuit equipment for unmanned aerial vehicle descending control | |
| CN112945154A (en) | Ultrasonic snow depth measuring device and method based on normalized cross-correlation time delay measurement | |
| CN210793004U (en) | Vehicle-mounted leveling platform for theodolite vehicle loading | |
| CN209197798U (en) | A kind of middle and small river water quality-flow quantity intelligent monitoring station | |
| CN110953374A (en) | Surveying instrument placing frame capable of being automatically leveled | |
| CN109612533A (en) | A kind of middle and small river water quality-flow quantity intelligent monitoring station and monitoring method | |
| CN215410864U (en) | RTK removes mapping equipment | |
| CN211442800U (en) | Novel land surveying and mapping aviation device | |
| CN214061171U (en) | Civil engineering's road and bridge self-propelled survey device | |
| CN111348078B (en) | Surveying and mapping device | |
| CN211552812U (en) | Surveyor's level for building survey and drawing | |
| CN210533359U (en) | Total powerstation suitable for complicated topography | |
| CN219776730U (en) | Remote sensing probe device for engineering survey and drawing remote sensing | |
| CN208535499U (en) | A kind of total station multifunctional mounting bracket | |
| CN218160770U (en) | Novel wind profile radar antenna array surface leveling mechanism | |
| CN215413630U (en) | Three-dimensional laser scanning system based on laser ranging | |
| CN117388932B (en) | Underground pipeline detection visual positioning device and method for complex environment | |
| CN220488798U (en) | Position adjusting device for comprehensive test card | |
| CN217820813U (en) | Adjustable radar device | |
| CN114199197B (en) | Urban road quality dynamic monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 |