CN215450388U - Landslide disaster monitoring and treatment system - Google Patents

Landslide disaster monitoring and treatment system Download PDF

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Publication number
CN215450388U
CN215450388U CN202121967216.7U CN202121967216U CN215450388U CN 215450388 U CN215450388 U CN 215450388U CN 202121967216 U CN202121967216 U CN 202121967216U CN 215450388 U CN215450388 U CN 215450388U
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monitoring
arch bar
sliding
arch
landslide
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CN202121967216.7U
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孟庆佳
王晨辉
郭伟
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Center for Hydrogeology and Environmental Geology CGS
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Center for Hydrogeology and Environmental Geology CGS
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Abstract

The utility model provides a landslide disaster monitoring and treatment system, which comprises: the fixed monitoring devices that set up on massif slope and the fixed treatment device that sets up the road both sides bottom massif slope, monitoring devices includes monitoring case, supporting mechanism and adjustment mechanism, adjustment mechanism is fixed to be set up supporting mechanism's inside, supporting mechanism is fixed to be set up on massif slope, supporting mechanism's top is fixed to be set up monitoring case, it includes a plurality of hunch boards, buffering part and sliding part, a plurality of to administer the device the hunch board is nested structure, the buffering part sets up the downside at hunch board both ends, sliding part sets up buffering part lower extreme. The landslide disaster monitoring and treating system provided by the utility model is simple in structure and convenient to install, can accurately monitor landslide disasters, can provide effective protective measures after monitoring and early warning, and reduces disasters caused by landslide.

Description

Landslide disaster monitoring and treatment system
Technical Field
The utility model relates to the technical field of landslide monitoring, in particular to a landslide disaster monitoring and treatment system.
Background
The landslide is a natural phenomenon that soil or rock mass on a slope slides downwards along the slope integrally or dispersedly under the action of gravity along a certain weak surface or a weak zone under the influence of factors such as river scouring, underground water activity, rainwater immersion, earthquake, artificial slope cutting and the like. The moving rock (earth) body is called a displaced body or a sliding body, and the unmoved underburden rock (earth) body is called a sliding bed. With the acceleration of mountain area construction speed, ecological environment suffers destruction, and mountain area emergence landslide phenomenon is increasingly serious, and the landslide phenomenon is the phenomenon that rock mass or soil body on the slope slides downwards along certain weak face (or weak area) whole under the action of gravity, and landslide often causes huge loss for industrial and agricultural production and people's life and property, and some can bring fatal calamity even, and especially landslide can bring the injury to the road, can bring fatal injury to the vehicle that the road went in the serious time.
Although the existing landslide monitoring device can carry out certain monitoring on landslide disasters, the precision is not high, the gradient of each landslide is different, the existing landslide monitoring device is extremely inconvenient to install, most of the existing device types are single, and the early warning and protection integrated design of landslide collapse is not realized. Therefore, it is necessary to design a landslide disaster monitoring and treating system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a landslide disaster monitoring and treatment system which is simple in structure and convenient to install, can accurately monitor landslide disasters, can provide effective protective measures after monitoring and early warning, and reduces disasters caused by landslide.
In order to achieve the purpose, the utility model provides the following scheme:
a landslide disaster monitoring and management system, the system comprising: the monitoring device is fixedly arranged on a mountain slope, and the treatment device is fixedly arranged on two sides of a road at the bottom of the mountain slope;
the monitoring device comprises a monitoring box, a supporting mechanism, three adjusting mechanisms and three shearing rods, wherein the adjusting mechanisms are fixedly arranged inside the supporting mechanism, the supporting mechanism is fixedly arranged on a mountain slope, the top of the supporting mechanism is fixedly provided with the monitoring box, the three shearing rods are uniformly inserted into the mountain slope to form a triangular cubic structure, a controller and an angular displacement sensor are arranged in the monitoring box, an inner humidity sensor, an outer humidity sensor, a temperature sensor, a fan and a pressure sensor are arranged inside the shearing rods, and the angular displacement sensor, the pressure sensor, the inner humidity sensor, the outer humidity sensor, the fan and the temperature sensor are all electrically connected with the controller;
the treatment device comprises a plurality of arch bars, a buffer component and a sliding component, wherein the arch bars are of arch bridge-shaped structures and are respectively a first arch bar, a second arch bar and a third arch bar, the inner diameter of the first arch bar is larger than that of the second arch bar, the inner diameter of the second arch bar is larger than that of the third arch bar, the first arch bar is nested outside the second arch bar and connected with the second arch bar, the second arch bar is nested outside the third arch bar and connected with the third arch bar, the buffer component is arranged at the bottoms of two sides of the first arch bar, the second arch bar and the third arch bar, the sliding component is arranged at the bottom of the buffer component, a sliding chute is formed in a road at the bottom of a mountain slope corresponding to the sliding component, and the arch bars move in the sliding chute through the sliding component.
Optionally, the supporting mechanism includes installation base, fixed inserted bar, backup pad, connecting axle and unable adjustment base, fixed inserted bar sets up the bottom of installation base is used for with the installation base is fixed on the mountain slope, the backup pad is fixed to be set up one side at installation base top, the top of backup pad sets up the connecting axle, unable adjustment base passes through the connecting axle rotates to be connected in the backup pad, the monitoring box is fixed to be set up unable adjustment base is last.
Optionally, adjustment mechanism includes telescopic cylinder, flexible post, screws up bolt, spacing traveller and two spacing slide rails, the center of installation base is provided with telescopic cylinder fixed orifices, telescopic cylinder passes through telescopic cylinder dead lever is fixed to be set up on the installation base, spacing slide rail is fixed to be set up unable adjustment base's bottom, telescopic cylinder slides to set up on telescopic cylinder's the inner wall, it sets up to screw up the bolt the top of telescopic cylinder side just corresponds the position of telescopic cylinder, spacing traveller is fixed to be set up telescopic cylinder's top, and slides and set up two on spacing slide rail's the inner wall.
Optionally, the buffer part includes recess, slide bar and buffer spring, the recess is seted up the bottom of arch bar both sides, recess sliding connection the slide bar, buffer spring establishes the slide bar is outside, the fixed support base that is provided with in bottom of slide bar.
Optionally, the sliding part includes a driving motor and two sliding wheels, the sliding wheels are disposed at the bottom of the supporting base, the controller is electrically connected to the driving motor, and the driving motor is connected to the sliding wheels for driving the arch bar to move.
Optionally, the monitoring device further includes a solar panel and a storage battery, the solar panel is disposed at the top of the monitoring box, the storage battery is disposed inside the monitoring box, the storage battery is used for supplying power to the electric devices, and the solar panel is connected to the storage battery and used for charging the storage battery.
Optionally, the monitoring device further includes a wireless communication module, the wireless communication module is disposed in the monitoring box, and the controller is in communication connection with the background monitoring host through the wireless communication module and is configured to send information obtained by the controller to the background monitoring host.
Optionally, the outside of first arch bar and third arch bar all is provided with road condition warning screen, road condition warning screen electric connection the controller for remind driving personnel.
According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects: the landslide disaster monitoring and managing system provided by the utility model can monitor landslide disasters in real time, provides effective protection after monitoring and early warning, and prevents landslide from damaging roads and vehicle personnel running on the roads; the monitoring device comprises a monitoring box, a supporting mechanism, an adjusting mechanism and a shear rod, wherein the adjusting mechanism is fixedly arranged in the supporting mechanism, the monitoring box is fixedly arranged at the top of the supporting mechanism, the angle of the monitoring box can be adjusted through the adjusting mechanism, so that the monitoring box can be suitable for slope monitoring of different slopes, the practicability of the system is improved, a plurality of shear rods are uniformly and obliquely inserted into a mountain slope to form a triangular cubic structure, an inner humidity sensor, an outer humidity sensor, a temperature sensor, a fan and a pressure sensor are arranged in the shear rods, the inner humidity sensor monitors the humidity in the shear rod in real time, the fan is started when the humidity is too high, the shear rod part is prevented from leaking out of the mountain slope due to the fact that electronic devices in the shear rod are damaged by moisture, and is arranged right below the monitoring box, and when the monitoring box is hit and falls down, the shear bar can block the monitoring box from sliding downwards, so that the monitoring box is prevented from being damaged to a greater extent; the treatment device comprises a plurality of arch bars, a buffer component and a sliding component, wherein the arch bars are all arch bridge-shaped structures and are respectively a first arch bar, a second arch bar and a third arch bar, the inner diameters of the first arch bar, the second arch bar and the third arch bar are sequentially reduced, the third arch bar is nested in the second arch bar and is connected with the second arch bar, the second arch bar is nested in the first arch bar, the buffer component is arranged at the bottoms of the two sides of the first arch bar, the second arch bar and the third arch bar, when a landslide disaster happens, the arch bars can be buffered to prevent the arch bars from deforming, the sliding component is arranged at the bottom of the buffer component, a sliding groove is arranged on a road at the bottom of the landslide slope corresponding to the sliding component, the arch bars move in the sliding groove through the sliding component, when the landslide disaster happens, the arch bars are unfolded through the sliding component to protect the road at the lower part of the landslide, prevent road and the navigating mate on road from receiving the injury, when not taking place the landslide calamity, the arch bar passes through sliding part folding together.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used 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 inventive exercise.
FIG. 1 is a schematic structural diagram of a landslide disaster monitoring and management system according to an embodiment of the utility model;
FIG. 2 is a schematic view of a monitoring device;
FIG. 3 is a schematic view of an adjustment mechanism;
FIG. 4 is a top view of the abatement device.
Reference numerals: 1. a monitoring box; 2. a support mechanism; 3. an adjustment mechanism; 4. a shear bar; 5. a first arch bar; 6. a second arch bar; 7. a third arch bar; 8. an external humidity sensor; 9. a pressure sensor; 10. an internal humidity sensor; 11. a temperature sensor; 12. a fan; 13. a groove; 14. a slide bar; 15. a buffer spring; 16. a support base; 17. a chute; 18. a sliding wheel; 19. fixing the inserted rod; 20. installing a base; 21. a support plate; 22. a connecting shaft; 23. a fixed base; 24. a limiting slide rail; 25. a limiting sliding column; 26. a telescopic column; 27. a telescopic cylinder; 28. and (5) tightening the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a landslide disaster monitoring and treatment system which is simple in structure and convenient to install, can accurately monitor landslide disasters, can provide effective protective measures after monitoring and early warning, and reduces disasters caused by landslide.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the system for monitoring and managing landslide disaster provided by the embodiment of the present invention includes: the monitoring device is fixedly arranged on a mountain slope, and the treatment device is fixedly arranged on two sides of a road at the bottom of the mountain slope;
the monitoring device comprises a monitoring box 1, a supporting mechanism 2, an adjusting mechanism 3 and a shear rod 4, wherein the adjusting mechanism 3 is fixedly arranged inside the supporting mechanism 2, the supporting mechanism 2 is fixedly arranged on a mountain slope, the top of the supporting mechanism 2 is fixedly provided with the monitoring box 1, three shear rods 4 are uniformly and obliquely inserted into the mountain slope to form a triangular cubic structure, a controller and an angular displacement sensor are arranged in the monitoring box 1, an inner humidity sensor 10, an outer humidity sensor 8, a temperature sensor 11, a fan 12 and a pressure sensor 9 are arranged inside the shear rod 4, and the angular displacement sensor, the pressure sensor 9, the inner humidity sensor 10, the outer humidity sensor 8, the fan 12 and the temperature sensor 11 are electrically connected with the controller;
as shown in fig. 4, the treatment device comprises a plurality of arch bars, a buffer component and a sliding component, wherein the arch bars are all arch bridge-shaped structures and are respectively a first arch bar 5, a second arch bar 6 and a third arch bar 7, the inner diameter of the first arch plate 5 is larger than that of the second arch plate 6, the inner diameter of the second arch plate 6 is larger than that of the third arch plate 7, the first arch plate 5 is nested outside the second arch plate 6, and connects said second arch 6, said second arch 6 being nested outside said third arch 7, and is connected with the third arch bar 7, the buffer parts are arranged at the bottoms of the two sides of the first arch bar 5, the second arch bar 6 and the third arch bar 7, the bottom of the buffer component is provided with a sliding component, a sliding groove 17 is formed in the road at the bottom of the mountain slope and corresponds to the sliding component, and the arch bar moves in the sliding groove 17 through the sliding component.
The arch bars are metal arch bars, and the number and the length of the arch bars are determined according to the length of the road at the bottom end of the covered slope.
Mountain slope is stretched out at the top of shear bar 4, and three shear bar 4 corresponds monitoring box 1 sets up the low reaches position on mountain slope for when monitoring box 1 takes place to strike the landing, hinder monitoring box 1, prevent that more serious damage from taking place, the top of shear bar 4 is provided with the bleeder vent, be used for with fan 12 cooperatees, realizes the dehumidification function of shear bar 4 inside.
As shown in fig. 2, the supporting mechanism 2 includes an installation base 20, a fixed inserted link 19, a supporting plate 21, a connecting shaft 22 and a fixing base 23, the fixed inserted link 19 is disposed at the bottom of the installation base 20 and is used for fixing the installation base 20 on a mountain slope, the supporting plate 21 is fixedly disposed at one side of the top of the installation base 20, the connecting shaft 22 is disposed at the top of the supporting plate 20, the fixing base 23 is rotatably connected to the supporting plate 20 through the connecting shaft 22, and the monitoring box 1 is fixedly disposed on the fixing base 23.
As shown in fig. 3, the adjusting mechanism 3 includes a telescopic cylinder 27, a telescopic column 26, a tightening bolt 28, a limiting sliding column 25 and two limiting sliding rails 24, the center of the mounting base 20 is provided with a telescopic cylinder fixing hole, the telescopic cylinder 27 is fixed on the mounting base 20 through the telescopic cylinder fixing rod, the limiting sliding rail 24 is fixed on the bottom of the fixing base 23, the telescopic column 26 is arranged on the inner wall of the telescopic cylinder 27 in a sliding manner, the tightening bolt 28 is arranged on the top of the side surface of the telescopic cylinder 27 and corresponds to the position of the telescopic column 26, the limiting sliding column 25 is fixed on the top of the telescopic column 26 and is arranged on the inner wall of the two limiting sliding rails 24 in a sliding manner.
Buffer unit includes recess 13, slide bar 14 and buffer spring 15, recess 13 sets up the bottom of arch bar both sides, recess 13 sliding connection slide bar 14, buffer spring 15 cover is established slide bar 14's outside, slide bar 14's bottom is fixed and is provided with support base 16.
The sliding part comprises a driving motor and two sliding wheels 18, the sliding wheels 18 are arranged at the bottom of the supporting base 16, the controller is electrically connected with the driving motor, and the driving motor is in driving connection with the sliding wheels 18 and used for driving the arch bar to move.
The sliding part can unfold the arch bar in a manual push-pull mode without using a driving motor.
The monitoring device further comprises a solar cell panel and a storage battery, the solar cell panel is arranged at the top of the monitoring box 1, the storage battery is arranged inside the monitoring box 1 and used for supplying power to all electric devices, and the solar cell panel is connected with the storage battery and used for charging the storage battery.
The monitoring device further comprises a wireless communication module, the wireless communication module is arranged in the monitoring box 1, and the controller is in communication connection with the background monitoring host through the wireless communication module and is used for sending information obtained by the controller to the background monitoring host.
The outside of first arch bar 5 and third arch bar 7 all is provided with road condition warning screen, road condition warning screen electric connection the controller for remind driving personnel.
The controller can be a single chip microcomputer, and the wireless communication module can be a 4G communication module or a 5G communication module and the like.
The using process of the utility model is as follows: the supporting component is fixed in the mountain slope through the telescopic cylinder and the fixed inserted rod, the height of the telescopic rod is changed by adjusting and screwing the bolt, so that the fixed base rotates around the connecting shaft, rotating to a proper angle according to specific requirements, the controller collects the information of each sensor in real time and sends the information to the background monitoring host through the wireless communication module, when the humidity of the internal humidity sensor acquired by the controller is too high, the controller controls the fan to be started, so that the electronic devices in the shear bar are prevented from being damaged due to too wet, when the controller judges that the mountain landslide occurs according to the information, the controller controls the driving motor to drive the sliding wheel to rotate, the arch bar is unfolded to enable the arch bar to cover the road at the lower end of the slope, meanwhile, the landslide in front is displayed on the road condition warning screen, vehicles on two sides of the road are reminded, and casualties are prevented.
The landslide disaster monitoring and managing system provided by the utility model can monitor landslide disasters in real time, provides effective protection after monitoring and early warning, and prevents landslide from damaging roads and vehicle personnel running on the roads; the monitoring device comprises a monitoring box, a supporting mechanism, an adjusting mechanism and a shear rod, wherein the adjusting mechanism is fixedly arranged in the supporting mechanism, the monitoring box is fixedly arranged at the top of the supporting mechanism, the angle of the monitoring box can be adjusted through the adjusting mechanism, so that the monitoring box can be suitable for slope monitoring of different slopes, the practicability of the system is improved, a plurality of shear rods are uniformly and obliquely inserted into a mountain slope to form a triangular cubic structure, an inner humidity sensor, an outer humidity sensor, a temperature sensor, a fan and a pressure sensor are arranged in the shear rods, the inner humidity sensor monitors the humidity in the shear rod in real time, the fan is started when the humidity is too high, the shear rod part is prevented from leaking out of the mountain slope due to the fact that electronic devices in the shear rod are damaged by moisture, and is arranged right below the monitoring box, and when the monitoring box is hit and falls down, the shear bar can block the monitoring box from sliding downwards, so that the monitoring box is prevented from being damaged to a greater extent; the treatment device comprises a plurality of arch bars, a buffer component and a sliding component, wherein the arch bars are all arch bridge-shaped structures and are respectively a first arch bar, a second arch bar and a third arch bar, the inner diameters of the first arch bar, the second arch bar and the third arch bar are sequentially reduced, the third arch bar is nested in the second arch bar and is connected with the second arch bar, the second arch bar is nested in the first arch bar, the buffer component is arranged at the bottoms of the two sides of the first arch bar, the second arch bar and the third arch bar, when a landslide disaster happens, the arch bars can be buffered to prevent the arch bars from deforming, the sliding component is arranged at the bottom of the buffer component, a sliding groove is arranged on a road at the bottom of the landslide slope corresponding to the sliding component, the arch bars move in the sliding groove through the sliding component, when the landslide disaster happens, the arch bars are unfolded through the sliding component to protect the road at the lower part of the landslide, prevent road and the navigating mate on road from receiving the injury, when not taking place the landslide calamity, the arch bar passes through sliding part folding together.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims (8)

1. The utility model provides a landslide disaster monitoring and treatment system which characterized in that includes: the monitoring device is fixedly arranged on a mountain slope, and the treatment device is fixedly arranged on two sides of a road at the bottom of the mountain slope;
the monitoring device comprises a monitoring box, a supporting mechanism, three adjusting mechanisms and three shearing rods, wherein the adjusting mechanisms are fixedly arranged inside the supporting mechanism, the supporting mechanism is fixedly arranged on a mountain slope, the top of the supporting mechanism is fixedly provided with the monitoring box, the three shearing rods are uniformly inserted into the mountain slope to form a triangular cubic structure, a controller and an angular displacement sensor are arranged in the monitoring box, an inner humidity sensor, an outer humidity sensor, a temperature sensor, a fan and a pressure sensor are arranged inside the shearing rods, and the angular displacement sensor, the pressure sensor, the inner humidity sensor, the outer humidity sensor, the fan and the temperature sensor are all electrically connected with the controller;
the treatment device comprises a plurality of arch bars, a buffer component and a sliding component, wherein the arch bars are of arch bridge-shaped structures and are respectively a first arch bar, a second arch bar and a third arch bar, the inner diameter of the first arch bar is larger than that of the second arch bar, the inner diameter of the second arch bar is larger than that of the third arch bar, the first arch bar is nested outside the second arch bar and connected with the second arch bar, the second arch bar is nested outside the third arch bar and connected with the third arch bar, the buffer component is arranged at the bottoms of two sides of the first arch bar, the second arch bar and the third arch bar, the sliding component is arranged at the bottom of the buffer component, a sliding chute is formed in a road at the bottom of a mountain slope corresponding to the sliding component, and the arch bars move in the sliding chute through the sliding component.
2. The landslide hazard monitoring and management system of claim 1, wherein said support mechanism comprises a mounting base, a fixing inserted link, a support plate, a connecting shaft and a fixing base, said fixing inserted link is arranged at the bottom of said mounting base for fixing said mounting base on the slope of the mountain, said support plate is fixedly arranged at one side of the top of said mounting base, said connecting shaft is arranged at the top of said support plate, said fixing base is rotatably connected to said support plate through said connecting shaft, and said monitoring box is fixedly arranged on said fixing base.
3. The landslide hazard monitoring and management system of claim 2, wherein said adjusting mechanism comprises a telescopic cylinder, a telescopic column, a tightening bolt, a limiting sliding column and two limiting sliding rails, said mounting base is centrally provided with a telescopic cylinder fixing hole, said telescopic cylinder is fixedly arranged on said mounting base by said telescopic cylinder fixing rod, said limiting sliding rails are fixedly arranged at the bottom of said fixing base, said telescopic column is slidably arranged on the inner wall of said telescopic cylinder, said tightening bolt is arranged at the top of the side of said telescopic cylinder and corresponds to the position of said telescopic column, said limiting sliding column is fixedly arranged at the top of said telescopic column and slidably arranged on the inner walls of said two limiting sliding rails.
4. The landslide hazard monitoring and management system of claim 1, wherein said buffer member comprises a groove, a sliding rod and a buffer spring, said groove is opened at the bottom of both sides of said arch bar, said groove is slidably connected with said sliding rod, said buffer spring is sleeved outside said sliding rod, and a support base is fixedly arranged at the bottom of said sliding rod.
5. The landslide hazard monitoring and management system of claim 4 wherein said sliding member comprises a driving motor and two sliding wheels, said sliding wheels are disposed at the bottom of said supporting base, said controller is electrically connected to said driving motor, said driving motor is drivingly connected to said sliding wheels for driving said arch bar to move.
6. The landslide hazard monitoring and management system of claim 1, wherein said monitoring device further comprises a solar panel and a storage battery, said solar panel is arranged on the top of said monitoring box, said storage battery is arranged inside said monitoring box, said storage battery is used for supplying power to all electric devices, said solar panel is connected to said storage battery for charging said storage battery.
7. The landslide disaster monitoring and management system of claim 1, wherein the monitoring device further comprises a wireless communication module, the wireless communication module is arranged in the monitoring box, and the controller is in communication connection with the background monitoring host through the wireless communication module and is used for sending information obtained by the controller to the background monitoring host.
8. The landslide hazard monitoring and management system of claim 1, wherein the first arch bar and the third arch bar are provided with a road condition warning screen at the outer side, and the road condition warning screen is electrically connected with the controller for reminding a vehicle driver.
CN202121967216.7U 2021-08-20 2021-08-20 Landslide disaster monitoring and treatment system Active CN215450388U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121967216.7U CN215450388U (en) 2021-08-20 2021-08-20 Landslide disaster monitoring and treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121967216.7U CN215450388U (en) 2021-08-20 2021-08-20 Landslide disaster monitoring and treatment system

Publications (1)

Publication Number Publication Date
CN215450388U true CN215450388U (en) 2022-01-07

Family

ID=79695406

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121967216.7U Active CN215450388U (en) 2021-08-20 2021-08-20 Landslide disaster monitoring and treatment system

Country Status (1)

Country Link
CN (1) CN215450388U (en)

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