CN210513159U - Remote sensing survey and drawing sign pole - Google Patents
Remote sensing survey and drawing sign pole Download PDFInfo
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- CN210513159U CN210513159U CN201922057557.XU CN201922057557U CN210513159U CN 210513159 U CN210513159 U CN 210513159U CN 201922057557 U CN201922057557 U CN 201922057557U CN 210513159 U CN210513159 U CN 210513159U
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Abstract
The utility model discloses a remote sensing survey and drawing sign pole, including hollow toper seat, be provided with the rectangular channel on one side inner wall of hollow toper seat, the top fixed mounting of hollow toper seat has the counter weight ring, the welding has the round bar on the inner wall of counter weight ring, be provided with the round hole on the round bar. The utility model discloses simple structure, when empting, the clamp plate can break away from ground, the second extension spring can make the clamp plate break away from the stay cord, first extension spring can make two-sided rack reset, two-sided rack can drive two hemisphere protection casings and put together again, and protect signal generator in two hemisphere protection casings, make when empting, two hemisphere protection casings can carry out effectual protection to signal generator, in addition in the transportation, two hemisphere protection casings are in the same place, also can protect signal generator, avoid colliding with and damage signal generator, the progress of survey and drawing has been guaranteed, high durability and convenient use.
Description
Technical Field
The utility model relates to a remote sensing survey and drawing technical field especially relates to a remote sensing survey and drawing sign pole.
Background
Remote sensing is a new technology that combines inductive telemetry and resource management surveillance of the earth's surface by telemetry on artificial earth satellites, or a technology that detects and identifies remote study objects using space vehicles and modern electronic, optical instruments. Remote sensing mapping is a behavior that uses remote sensing technology to calculate on a computer and can achieve the purpose of mapping.
When the remote sensing survey and drawing, need use the sign pole, at the in-process that uses the sign pole, because the user of service does not have correct fixed or have strong wind weather, it emptys to lead to the sign pole easily, and install signal generator on the sign pole, signal generator is accurate electronic components, and current sign pole does not set up the device that protects signal generator usually, when the sign pole is emptyd, signal generator can take place to collide with ground or subaerial sharp-pointed article, cause signal generator's damage easily, and then can cause the unnecessary loss, still can make survey and drawing work can't continue to go on, delay the progress of survey and drawing, so we propose a remote sensing survey and drawing sign pole, a problem for solve the aforesaid mentioning.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art and providing a remote sensing mapping marking rod.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a remote sensing survey and drawing sign pole, includes hollow toper seat, be provided with the rectangular channel on one side inner wall of hollow toper seat, the top fixed mounting of hollow toper seat has the counter weight ring, the welding has the round bar on the inner wall of counter weight ring, be provided with the round hole on the round bar, the top fixed mounting of round bar has signal generator, be provided with the rectangular hole on the round bar, on the both sides inner wall of rectangular hole respectively the symmetry rotate be connected with two first pivots and two second pivots, and two second pivots are located between two first pivots, and the dwang has all been welded to one side that two first pivots kept away from each other, and the one end that two dwangs were kept away from each other all runs through the rectangular hole and extends to the both sides of round bar respectively, and the equal fixed mounting in top one side of two dwangs has the hemisphere protection casing, be provided with the opening on the hemisphere protection casing, fixed cover respectively on the outer wall of first pivot and on the outer wall of second pivot The first gear is meshed with the second gear, the same vertical plate is welded on the inner wall of the top of the rectangular hole and the inner wall of the bottom of the rectangular hole, the vertical plate is located between two second rotating shafts, a double-sided rack is connected to one side of the vertical plate in a sliding mode, the two second gears are both meshed with the double-sided rack, a first tension spring is welded on the top of the double-sided rack, the top end of the first tension spring is welded with the inner wall of the top of the rectangular hole, and a pull rope is fixedly connected to the bottom of the double-sided rack;
the welding has same diaphragm on the both sides inner wall of hollow toper seat, the one end that double-sided rack was kept away from to the stay cord runs through round hole and diaphragm and rectangular channel respectively and extends to one side of hollow toper seat, be provided with the through-hole on the diaphragm, the through-hole is located one side of stay cord, sliding connection has the guide arm on the inner wall of through-hole, the top of guide arm runs through the through-hole and extends to the top of diaphragm, and the top welding of guide arm has the roof, the cover is equipped with the second extension spring on the outer wall of guide arm, the top and the bottom of second extension spring weld with the bottom of roof and the top of diaphragm respectively mutually, the bottom welding of guide arm has the clamp plate, one side that clamp plate and diaphragm are close.
Preferably, the welding of one side of riser has the guide rail, the symmetrical welding of one side of two-sided rack has two sliders, slider and guide rail sliding connection.
Preferably, a plurality of circular plates arranged at equal intervals are welded on the inner wall of the circular hole, a through hole is formed in the top center position of each circular plate, and the bottom end of the pull rope penetrates through the through holes and extends to the lower side of each circular plate.
Preferably, the welding of top one side of dwang has the erection column, the top of erection column and the bottom welding of hemisphere protection casing.
Preferably, the top of the pressing plate and the bottom of the transverse plate are both provided with anti-skid convex lines.
Preferably, a linear bearing is welded on the inner wall of the through hole, and the bottom end of the guide rod penetrates through the linear bearing and extends to the lower portion of the transverse plate.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the utility model discloses in, the pulling stay cord can drive the two-sided rack and move down, can stretch first extension spring simultaneously, two-sided rack can drive two second gears and two first gears and rotate, two first gears can drive two dwang respectively and rotate to the direction of keeping away from each other, two dwang can drive two hemisphere protection casings respectively and move and separate, when two dwang rotate to same horizontal plane, stop pulling the stay cord, stand up the round bar, then the clamp plate can contact with ground, under the action of gravity of counter weight ring isotructure, can make the guide arm slide on the diaphragm, can stretch the second extension spring simultaneously, and the clamp plate can contact with the stay cord, and can clamp that the stay cord is fastened between clamp plate and diaphragm, loosen the stay cord this moment, two hemisphere protection casings can not shelter from the signal of signal generator this moment;
2. the utility model discloses in, when empting, the clamp plate can break away from ground, and the second extension spring can make guide arm and clamp plate reset, then the clamp plate can break away from the stay cord, owing to the braking that has not had the clamp plate this moment, then first extension spring can make two-sided rack to reset, and two first gears and two second gears can be driven to two racks reset to two dwangs and two hemisphere protection casings can reset, and two hemisphere protection casings can be put together again, and protect signal generator in two hemisphere protection casings.
The utility model discloses simple structure, when empting, the clamp plate can break away from ground, the second extension spring can make the clamp plate break away from the stay cord, first extension spring can make two-sided rack reset, two-sided rack can drive two hemisphere protection casings and put together again, and protect signal generator in two hemisphere protection casings, make when empting, two hemisphere protection casings can carry out effectual protection to signal generator, in addition in the transportation, two hemisphere protection casings are in the same place, also can protect signal generator, avoid colliding with and damage signal generator, the progress of survey and drawing has been guaranteed, high durability and convenient use.
Drawings
Fig. 1 is a three-dimensional view of a remote sensing surveying and mapping marking rod in a use state according to the present invention;
fig. 2 is a schematic structural view of the remote sensing surveying and mapping marking rod according to the present invention in a use state;
fig. 3 is an enlarged view of a portion a of a remote sensing surveying and mapping marking rod provided by the present invention;
fig. 4 is a schematic structural view of a hollow conical seat of the remote sensing mapping marking rod provided by the utility model;
fig. 5 is a side view of a rectangular hole of a remote sensing mapping marking rod provided by the present invention;
fig. 6 is a three-dimensional view of the hemispherical protection cover of the remote sensing mapping marking rod provided by the utility model;
fig. 7 is the utility model provides a remote sensing survey and drawing sign pole's hollow toper seat's right side view.
In the figure: the device comprises a hollow conical seat 1, a counterweight ring 2, a transverse plate 3, a round rod 4, a pull rope 5, a round hole 6, a round plate 7, a rotating rod 8, a hemispherical protective cover 9, a signal generator 10, a rectangular hole 11, a first tension spring 12, a first rotating shaft 13, a second rotating shaft 14, a first gear 15, a second gear 16, a double-sided rack 17, a top plate 18, a pressing plate 19, a guide rod 20, a second tension spring 21, a vertical plate 22, a guide rail 23, a sliding block 24, an opening 25, a rectangular groove 26 and an installation column 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-7, a remote sensing mapping marking rod comprises a hollow conical seat 1, a rectangular groove 26 is arranged on one side inner wall of the hollow conical seat 1, a counterweight ring 2 is fixedly arranged on the top of the hollow conical seat 1, a round rod 4 is welded on the inner wall of the counterweight ring 2, a round hole 6 is arranged on the round rod 4, a signal generator 10 is fixedly arranged on the top of the round rod 4, a rectangular hole 11 is arranged on the round rod 4, two first rotating shafts 13 and two second rotating shafts 14 are respectively and symmetrically and rotatably connected on the inner walls of the two sides of the rectangular hole 11, the two second rotating shafts 14 are positioned between the two first rotating shafts 13, rotating rods 8 are welded on the sides of the two first rotating shafts 13 far away from each other, the ends of the two rotating rods 8 far away from each other penetrate through the rectangular hole 11 and respectively extend to the two sides of the round rod 4, and a hemispherical protective cover 9 is fixedly arranged on, an opening 25 is formed in the hemispherical protective cover 9, a first gear 15 and a second gear 16 are fixedly sleeved on the outer wall of the first rotating shaft 13 and the outer wall of the second rotating shaft 14 respectively, the first gear 15 is meshed with the second gear 16, the same vertical plate 22 is welded on the top inner wall and the bottom inner wall of the rectangular hole 11, the vertical plate 22 is located between the two second rotating shafts 14, one side of the vertical plate 22 is connected with a double-sided rack 17 in a sliding mode, the two second gears 16 are both meshed with the double-sided rack 17, a first tension spring 12 is welded on the top of the double-sided rack 17, the top end of the first tension spring 12 is welded with the top inner wall of the rectangular hole 11, and a pull rope 5 is fixedly connected to the bottom of the double;
the inner walls of two sides of the hollow conical seat 1 are welded with the same transverse plate 3, one end of the pull rope 5, far away from the double-sided rack 17, penetrates through the round hole 6, the transverse plate 3 and the rectangular groove 26 respectively and extends to one side of the hollow conical seat 1, the transverse plate 3 is provided with a through hole which is positioned at one side of the pull rope 5, the inner wall of the through hole is connected with a guide rod 20 in a sliding manner, the top end of the guide rod 20 penetrates through the through hole and extends to the upper side of the transverse plate 3, the top of the guide rod 20 is welded with a top plate 18, the outer wall of the guide rod 20 is sleeved with a second tension spring 21, the top end and the bottom end of the second tension spring 21 are respectively welded with the bottom of the top plate 18 and the top of the transverse plate 3, the bottom of the guide rod 20 is welded with a pressing plate 19, the pressing plate 19 and one side, close to the transverse plate 3, are both contacted with the, the two first gears 15 can respectively drive the two rotating rods 8 to rotate in the directions away from each other, the two rotating rods 8 can respectively drive the two hemispherical protective covers 9 to move and separate, when the two rotating rods 8 rotate to the same horizontal plane, the pull rope 5 stops being pulled, the round rod 4 is erected, the press plate 19 can be contacted with the ground, under the action of gravity of the structure of the counterweight ring 2 and the like, the guide rod 20 can slide on the transverse plate 3, the second tension spring 21 can be stretched, the press plate 19 can be contacted with the pull rope 5 and can clamp the pull rope 5 between the press plate 19 and the transverse plate 3, at the moment, the pull rope 5 is loosened, at the moment, the signals of the signal generator 10 cannot be shielded by the two hemispherical protective covers 9, when the two hemispherical protective covers are toppled over, the press plate 19 can be separated from the ground, the guide rod 20 and the press plate 19 can be reset by the second tension spring 21, the press plate 19 can, the first tension spring 12 will reset the double-sided rack 17, the double-sided rack 17 will drive the two first gears 15 and the two second gears 16 to reset, so that the two rotating levers 8 and the two hemispherical protection covers 9 will reset, and the two hemispherical protection covers 9 will be put together again, and will protect the signal generator 10 in the two hemispherical protection covers 9. the utility model has a simple structure, when toppling over, the pressing plate 19 will be separated from the ground, the second tension spring 21 will make the pressing plate 19 separate from the pull rope 5, the first tension spring 12 will reset the double-sided rack 17, the double-sided rack 17 will drive the two hemispherical protection covers 9 to be put together again, and will protect the signal generator 10 in the two hemispherical protection covers 9, so that when toppling over, the two hemispherical protection covers 9 can effectively protect the signal generator 10, and in addition, in transportation, the two hemispherical protection covers 9 are put together, also can protect signal generator 10, avoid colliding with and damage signal generator 10, guarantee the progress of survey and drawing, convenient to use.
In the utility model, a guide rail 23 is welded on one side of a vertical plate 22, two sliders 24 are symmetrically welded on one side of a double-sided rack 17, the sliders 24 are connected with the guide rail 23 in a sliding manner, a plurality of circular plates 7 arranged at equal intervals are welded on the inner wall of a circular hole 6, a through hole is arranged at the top center position of the circular plate 7, the bottom end of a pull rope 5 penetrates through the through holes and extends to the lower part of the circular plate 7, an installation column 27 is welded on one side of the top of a rotating rod 8, the top of the installation column 27 is welded with the bottom part of a hemispherical protection cover 9, anti-skid convex lines are arranged on the top of a pressing plate 19 and the bottom part of a transverse plate 3, a linear bearing is welded on the inner wall of the through hole, the bottom end of a guide rod 20 penetrates through the linear bearing and extends to the lower part of the transverse plate 3, the pull rope 5 can drive the double-sided, the two first gears 15 can respectively drive the two rotating rods 8 to rotate in the directions away from each other, the two rotating rods 8 can respectively drive the two hemispherical protective covers 9 to move and separate, when the two rotating rods 8 rotate to the same horizontal plane, the pull rope 5 stops being pulled, the round rod 4 is erected, the press plate 19 can be contacted with the ground, under the action of gravity of the structure of the counterweight ring 2 and the like, the guide rod 20 can slide on the transverse plate 3, the second tension spring 21 can be stretched, the press plate 19 can be contacted with the pull rope 5 and can clamp the pull rope 5 between the press plate 19 and the transverse plate 3, at the moment, the pull rope 5 is loosened, at the moment, the signals of the signal generator 10 cannot be shielded by the two hemispherical protective covers 9, when the two hemispherical protective covers are toppled over, the press plate 19 can be separated from the ground, the guide rod 20 and the press plate 19 can be reset by the second tension spring 21, the press plate 19 can, the first tension spring 12 will reset the double-sided rack 17, the double-sided rack 17 will drive the two first gears 15 and the two second gears 16 to reset, so that the two rotating levers 8 and the two hemispherical protection covers 9 will reset, and the two hemispherical protection covers 9 will be put together again, and will protect the signal generator 10 in the two hemispherical protection covers 9. the utility model has a simple structure, when toppling over, the pressing plate 19 will be separated from the ground, the second tension spring 21 will make the pressing plate 19 separate from the pull rope 5, the first tension spring 12 will reset the double-sided rack 17, the double-sided rack 17 will drive the two hemispherical protection covers 9 to be put together again, and will protect the signal generator 10 in the two hemispherical protection covers 9, so that when toppling over, the two hemispherical protection covers 9 can effectively protect the signal generator 10, and in addition, in transportation, the two hemispherical protection covers 9 are put together, also can protect signal generator 10, avoid colliding with and damage signal generator 10, guarantee the progress of survey and drawing, convenient to use.
The working principle is as follows: when the device is used, the round rod 4 is placed in parallel to the ground, the pull rope 5 is pulled, the pull rope 5 drives the double-sided rack 17 to move downwards, the first tension spring 12 is stretched, the double-sided rack 17 drives the sliding block 24 to slide on the guide rail 23, the double-sided rack 17 can drive the two second gears 16 to rotate, the two second gears 16 can respectively drive the two first gears 15 to rotate, the two first gears 15 can respectively drive the two first rotating shafts 13 to rotate, the rotating directions of the two first gears 15 are opposite, the rotating directions of the two first rotating shafts 13 are also opposite, the two first rotating shafts 13 can respectively drive the two rotating rods 8 to rotate and move in directions away from each other, the two rotating rods 8 can respectively drive the two hemispherical protective covers 9 to move and separate, when the two rotating rods 8 rotate to the same horizontal plane, stopping pulling the pull rope 5, standing the round rod 4, contacting the press plate 19 with the ground, under the action of gravity of the structure such as the balance weight ring 2, enabling the guide rod 20 to slide on the transverse plate 3, simultaneously stretching the second tension spring 21, contacting the press plate 19 with the pull rope 5, clamping the pull rope 5 between the press plate 19 and the transverse plate 3, loosening the pull rope 5, when the press plate 19 is toppled, enabling the guide rod 20 and the press plate 19 to reset by the second tension spring 21, enabling the press plate 19 to break away from the pull rope 5, enabling the first tension spring 12 to reset the double-sided rack 17 due to no braking of the press plate 19, enabling the double-sided rack 17 to drive the two first gears 15 and the two second gears 16 to reset, thereby resetting the two rotating rods 8 and the two hemispherical protection covers 9, enabling the two hemispherical protection covers 9 to be combined again, and protecting the signal generator 10 in the two hemispherical protection covers 9, make when empting, two hemisphere protection covers 9 can carry out effectual protection to signal generator 10, when not empting, two hemisphere protection covers 9 can not shelter from signal generator 10's signal, in the transportation in addition, two hemisphere protection covers 9 are in the same place, also can protect signal generator 10, avoid colliding with and damage signal generator 10, have guaranteed the progress of survey and drawing, convenient to use.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a remote sensing survey and drawing sign pole, includes hollow toper seat (1), its characterized in that, be provided with rectangular channel (26) on one side inner wall of hollow toper seat (1), the top fixed mounting of hollow toper seat (1) has counterweight ring (2), the welding has round bar (4) on the inner wall of counterweight ring (2), be provided with round hole (6) on round bar (4), the top fixed mounting of round bar (4) has signal generator (10), be provided with rectangular hole (11) on round bar (4), on the both sides inner wall of rectangular hole (11) respectively the symmetry rotate be connected with two first pivots (13) and two second pivots (14), and two second pivots (14) are located between two first pivots (13), and one side that two first pivots (13) kept away from each other all welds dwang (8), and the one end that two dwang (8) kept away from each other all runs through rectangular hole (11) and extends to round bar (4) respectively The two sides of the two rotating rods (8), wherein a hemispherical protection cover (9) is fixedly arranged on one side of the top of each rotating rod (8), an opening (25) is formed in the hemispherical protection cover (9), a first gear (15) and a second gear (16) are fixedly sleeved on the outer wall of the first rotating shaft (13) and the outer wall of the second rotating shaft (14) respectively, the first gear (15) is meshed with the second gear (16), the top inner wall and the bottom inner wall of the rectangular hole (11) are welded with the same vertical plate (22), the vertical plate (22) is located between the two second rotating shafts (14), one side of the vertical plate (22) is slidably connected with a double-faced rack (17), the two second gears (16) are meshed with the double-faced rack (17), a first tension spring (12) is welded on the top of the double-faced rack (17), and the top of the first tension spring (12) is welded with the top inner wall of the rectangular hole (11), the bottom of the double-sided rack (17) is fixedly connected with a pull rope (5);
the welding has same diaphragm (3) on the both sides inner wall of hollow toper seat (1), the one end that two-sided rack (17) was kept away from in stay cord (5) runs through round hole (6) and diaphragm (3) and rectangular channel (26) respectively and extends to one side of hollow toper seat (1), be provided with the through-hole on diaphragm (3), the through-hole is located one side of stay cord (5), sliding connection has guide arm (20) on the inner wall of through-hole, the top of guide arm (20) runs through the through-hole and extends to the top of diaphragm (3), and the top welding of guide arm (20) has roof (18), the cover is equipped with second extension spring (21) on the outer wall of guide arm (20), the top and the bottom of second extension spring (21) weld with the bottom of roof (18) and the top of diaphragm (3) respectively mutually, the bottom welding of guide arm (20) has clamp plate (19), one side of the pressing plate (19) close to the transverse plate (3) is contacted with the pull rope (5).
2. The remote sensing surveying and mapping marking pole of claim 1, characterized in that a guide rail (23) is welded to one side of the vertical plate (22), two sliding blocks (24) are symmetrically welded to one side of the double-sided rack (17), and the sliding blocks (24) are slidably connected with the guide rail (23).
3. The remote sensing surveying and mapping sign pole of claim 1, characterized in that a plurality of circular plates (7) arranged at equal intervals are welded on the inner wall of the circular hole (6), a through hole is arranged at the center of the top of each circular plate (7), and the bottom end of the pull rope (5) penetrates through the through holes and extends to the lower side of each circular plate (7).
4. The remote sensing mapping marking pole as claimed in claim 1, characterized in that a mounting post (27) is welded on one side of the top of the rotating pole (8), and the top of the mounting post (27) is welded with the bottom of the hemispherical protection cover (9).
5. The remote sensing surveying marking post according to claim 1, characterized in that the top of the pressure plate (19) and the bottom of the cross plate (3) are provided with anti-skid ridges.
6. The remote sensing mapping sign pole of claim 1, characterized in that a linear bearing is welded on the inner wall of the through hole, and the bottom end of the guide rod (20) penetrates through the linear bearing and extends to the lower side of the transverse plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922057557.XU CN210513159U (en) | 2019-11-26 | 2019-11-26 | Remote sensing survey and drawing sign pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922057557.XU CN210513159U (en) | 2019-11-26 | 2019-11-26 | Remote sensing survey and drawing sign pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513159U true CN210513159U (en) | 2020-05-12 |
Family
ID=70575287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922057557.XU Expired - Fee Related CN210513159U (en) | 2019-11-26 | 2019-11-26 | Remote sensing survey and drawing sign pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210513159U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739757A (en) * | 2021-09-03 | 2021-12-03 | 陈丽丽 | Land levelness measuring device for national soil resource space planning |
| CN114894162A (en) * | 2022-07-13 | 2022-08-12 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Outdoor remote sensing mapping image positioner |
| CN117848219A (en) * | 2024-01-03 | 2024-04-09 | 中南大学 | Slope displacement monitoring facilities |
-
2019
- 2019-11-26 CN CN201922057557.XU patent/CN210513159U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739757A (en) * | 2021-09-03 | 2021-12-03 | 陈丽丽 | Land levelness measuring device for national soil resource space planning |
| CN113739757B (en) * | 2021-09-03 | 2023-07-25 | 陈丽丽 | Land levelness measuring device for planning land resource space |
| CN114894162A (en) * | 2022-07-13 | 2022-08-12 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Outdoor remote sensing mapping image positioner |
| CN114894162B (en) * | 2022-07-13 | 2022-09-20 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Outdoor remote sensing mapping image positioner |
| CN117848219A (en) * | 2024-01-03 | 2024-04-09 | 中南大学 | Slope displacement monitoring facilities |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Granted publication date: 20200512 Termination date: 20201126 |