Unmanned aerial vehicle for topographic surveying and mapping

Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle for topographic surveying and mapping. Comprising an unmanned aerial vehicle body, the unmanned aerial vehicle body comprises a power supply module used for supplying power, the unmanned aerial vehicle further comprises a box body, the box body is arranged on the unmanned aerial vehicle body, the power supply module is arranged in a mounting cavity of the box body, and a restraining assembly used for restraining fire of the power supply module and an ejection module used for ejecting the power supply module out of the box body are arranged in the box body. By arranging the suppression assembly, when the temperature of the power module abnormally and suddenly rises and smoke appears, a temperature sensor and a smoke sensor can detect abnormity, an air pump in an air storage tank is started, the air pump can spray out carbon dioxide in the air storage tank, and the carbon dioxide is sprayed to the periphery of the power module through an air outlet head, an L-shaped channel, a transverse channel and an air outlet; the fire probability of the power supply module is reduced, and the inclined plate can enable sprayed carbon dioxide to fall on the power supply module as many as possible.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and more particularly to an UAV for terrain surveying and mapping. Background Art

[0002] As a core tool for modern geographic information collection, topographic mapping drones have been widely used in land surveys, mine monitoring, water conservancy planning and other fields. Equipped with high-precision mapping equipment, they can quickly obtain three-dimensional terrain data, with higher operating efficiency than traditional manual mapping. They are especially suitable for complex terrains such as mountains and canyons. Mapping drones usually use high-capacity lithium battery packs. Under long-term operation and high-power loads, the power module is prone to abnormalities due to overcharging, short circuit or poor heat dissipation.

[0003] Current drones have the ability to monitor power module anomalies. Traditional monitoring methods rely on voltage / current sensors, which can only detect battery undervoltage or overload and cannot predict early risks such as smoke and high temperature. When a power module has a hidden fault, it often produces smoke or even fire. If not prevented or handled in time, it will cause damage to the equipment. Summary of the Invention

[0004] The present invention aims to solve the problem in the background art that current UAVs are unable to handle fire in the power module, and proposes a UAV for terrain surveying and mapping.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a drone for terrain surveying and mapping, comprising a drone body, the drone body including a power module for powering, and further comprising: The box body is arranged on the drone body, the power module is arranged in the installation cavity of the box body, and the box body is provided with a suppression component for suppressing the fire of the power module and an ejection module for ejecting the power module out of the box body.

[0006] Furthermore, the suppression module includes an air storage tank arranged in a box body, an air outlet head is installed on the air storage tank, an air pump is arranged in the air storage tank, an L-shaped channel connected to the air outlet head is opened in the box body, a transverse channel connected to the L-shaped channel is opened in the box body, a plurality of air outlets connected to the transverse channels are opened in the box body, an inclined plate facing the air outlet is fixed in the installation cavity of the box body, and a first bottom plate is fixed to the bottom of the power module, and the first bottom plate is a fireproof plate.

[0007] Furthermore, the ejection module includes a first cavity opened in the box body, a motor is fixedly connected to the box body, the output shaft of the motor is fixedly connected to the first rotating shaft, the outer wall of the first rotating shaft is fixedly connected to the toggle plate, the first movable plate is slidably connected in the first cavity, the top end of the first movable plate is located on the trajectory of the toggle plate rotating around the first rotating shaft, the first movable plate is fixedly connected to the impact plate in contact with the first bottom plate, and a first spring is fixedly connected between the first movable plate and the first cavity.

[0008] Furthermore, a cover plate is hingedly connected to one end of the box body, a U-shaped rod is slidably connected to the box body, an insert block is fixedly connected to one end of the U-shaped rod, a slot is provided at the bottom of the cover plate, the insert block is inserted in the slot, a stop block is fixedly connected to the other end of the U-shaped rod, the stop block abuts against one side of the first bottom plate, a connecting rod is fixedly connected to the bottom of the U-shaped rod, a second cavity is provided in the box body, and a plurality of second springs are fixedly connected between the connecting rod and the second cavity.

[0009] Furthermore, a first rack is slidably connected in the box body, a first curved plate is fixed to the bottom end of the first rack, the first curved plate is located on the trajectory of the toggle plate rotating around the first rotating shaft, a second rotating shaft is rotatably connected in the box body, the outer surface of the second rotating shaft is fixed to a gear meshing with the first rack, a second rack is meshed on one side of the gear, a connecting rod is rotatably connected to the second rack, an L-shaped rod is rotatably connected to one side of the connecting rod, the L-shaped rod is slidably connected in the box body, one end of the L-shaped rod is fixed to the second curved plate, and the toggle plate is located between the first curved plate and the second curved plate.

[0010] Furthermore, a fixed plate is fixed in the box body, a third spring is fixed in the fixed plate, one end of the third spring is fixed to a second movable plate slidably connected in the box body, a rubber block is fixed in the second movable plate, and a circular groove is provided on the first rack.

[0011] Furthermore, a second bottom plate is provided in the box body, a backup power supply is installed on the top of the second bottom plate, and the first bottom plate is located on the top of the backup power supply.

[0012] Furthermore, a shell is fixedly connected to the top of the box body, and a smoke sensor, a temperature sensor and a gas sensor are arranged in the shell. The smoke sensor is used to monitor whether the power module generates smoke, the temperature sensor is used to monitor the temperature of the power module, and the gas sensor is used to monitor the characteristic gas generated by the combustion of the power module.

[0013] Furthermore, the suppression assembly and the ejection assembly are both opened and closed under the control of the main controller, and the data monitored by the smoke sensor, temperature sensor and gas sensor are all transmitted to the main controller.

[0014] The technical effects and advantages of the UAV for terrain surveying and mapping of the present invention are as follows: (1) By setting up a suppression component, when the temperature of the power module rises suddenly and smoke appears, the temperature sensor and the smoke sensor can detect the abnormality and start the air pump in the gas tank. The air pump can spray out the carbon dioxide in the gas tank. The carbon dioxide is sprayed around the power module through the gas outlet head, L-shaped channel, transverse channel and gas outlet, reducing the probability of fire in the power module. The inclined plate can make the sprayed carbon dioxide fall on the power module as much as possible.

[0015] (2) By setting up an ejection component, when the gas sensor detects the characteristic gas of the power module catching fire, the motor is started to drive the first rotating shaft and the toggle plate to rotate, so that the toggle plate rotates rapidly. During the rotation process, the toggle plate can push the first movable plate, and the first movable plate pushes the first bottom plate through the impact plate. The thrust can quickly push the first bottom plate and the power module out of the box body, thereby achieving the purpose of ejecting the catching power module out of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the box body in the present invention; Figure 3 Schematic diagram of the U-shaped rod and connecting rod structure in the present invention; Figure 4 For the present invention Figure 2 A in the middle is an enlarged schematic diagram; Figure 5 Schematic diagram of the structure of the first rack and the first arc-shaped plate in the present invention; Figure 6 Schematic diagram of the system module in the present invention.

[0017] In the picture: 1. UAV body; 2. Power module; 3. Box body; 4. Gas tank; 5. Gas outlet; 6. L-shaped channel; 7. Horizontal channel; 8. Gas outlet; 9. Inclined plate; 10. First bottom plate; 11. First cavity; 12. Motor; 13. First rotating shaft; 14. Toggle plate; 15. First moving plate; 16. Impact plate; 17. First spring; 18. Cover plate; 19. U-shaped rod; 20. Insert block; 21. Slot; 22. Stop block; 23. Connecting rod; 24. Second cavity; 25. Second spring; 26. First rack; 27. First curved plate; 28. Second rotating shaft; 29. ​​Gear; 30. Second rack; 31. L-shaped rod; 32. Second curved plate; 33. Connecting rod; 34. Fixed plate; 35. Third spring; 36. Second movable plate; 37. Rubber block; 38. Circular groove; 39. Second bottom plate; 40. Backup power supply; 41. Housing. DETAILED DESCRIPTION

[0018] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] Reference Figures 1-6 A terrain surveying and mapping UAV includes a UAV body 1, the UAV body 1 includes a power supply module 2 for power supply, and further includes: Box body 3, box body 3 is arranged on the drone body 1, and the power module 2 is arranged in the installation cavity of box body 3. The box body 3 is provided with a suppression component for suppressing the power module 2 from catching fire and an ejection module for ejecting the power module 2 out of the box body 3; During use, the power module 2 supplies normal power to the drone body 1. When smoke appears in the power module 2, the suppression component suppresses the power module 2 to suppress the possibility of fire. When the power module 2 catches fire, the ejection module ejects the burning power module 2 out of the box body 3 to prevent damage to the drone body 1.

[0020] Reference Figure 2 The suppression module includes a gas storage tank 4 arranged in the box body 3, an air outlet head 5 is installed on the gas storage tank 4, an air pump is arranged in the gas storage tank 4, an L-shaped channel 6 connected to the air outlet head 5 is opened in the box body 3, a transverse channel 7 connected to the L-shaped channel 6 is opened in the box body 3, a plurality of air outlet ports 8 connected to the transverse channel 7 are opened in the box body 3, an inclined plate 9 is fixedly connected to the installation cavity of the box body 3 and is directly opposite to the air outlet 8, and a first bottom plate 10 is fixedly connected to the bottom of the power module 2, which is a fireproof plate; when smoke appears in the power module 2, the suppression module needs to be started, and the air pump is started to release the carbon dioxide in the gas storage tank 4. The carbon dioxide is released to the vicinity of the power module 2 through the air outlet head 5, the L-shaped channel 6, the transverse channel 7 and the air outlet 8, and the carbon dioxide can effectively suppress the possibility of fire. By arranging the inclined plate 9, the released carbon dioxide can accurately fall near the power module 2, and by arranging the first bottom plate 10 as a fireproof plate, in case of fire, the fire can be prevented from spreading downward.

[0021] Reference Figure 2 and Figure 4The ejection module includes a first cavity 11 opened in the box body 3, a motor 12 is fixed in the box body 3, the output shaft of the motor 12 is fixedly connected to the first rotating shaft 13, the outer wall of the first rotating shaft 13 is fixedly connected to the toggle plate 14, and the first cavity 11 is slidably connected with a first movable plate 15. The top of the first movable plate 15 is located on the track where the toggle plate 14 rotates around the first rotating shaft 13. The first movable plate 15 is fixedly connected to a striking plate 16 in contact with the first bottom plate 10. A first spring 17 is fixedly connected between the first movable plate 15 and the first cavity 11. When the power module 2 catches fire and needs to be started The ejection module is started and the motor 12 is started. The motor 12 drives the first rotating shaft 13 to rotate. The first rotating shaft 13 drives the toggle plate 14 to rotate, so that the toggle plate 14 rotates rapidly toward the first movable plate 15. The toggle plate 14 can rapidly toggle the first movable plate 15. The first spring 17 is compressed, and the first movable plate 15 drives the impact plate 16 to move. The impact plate 16 can hit the first bottom plate 10. The first bottom plate 10 drives the power module 2 to eject out of the box body 3, thereby achieving the purpose of automatically ejecting the power module 2. Under the action of the first spring 17, the first movable plate 15 and the impact plate 16 are reset.

[0022] Reference Figure 2 and Figure 3 , one end of the box body 3 is hinged with a cover plate 18, a U-shaped rod 19 is slidably connected to the box body 3, one end of the U-shaped rod 19 is fixedly connected to an insert block 20, a slot 21 is provided at the bottom of the cover plate 18, the insert block 20 is inserted into the slot 21, the other end of the U-shaped rod 19 is fixedly connected to a stopper 22, the stopper 22 abuts against one side of the first bottom plate 10, a connecting rod 23 is fixedly connected to the bottom of the U-shaped rod 19, a second cavity 24 is provided in the box body 3, and the connecting rod 23 is connected to the second cavity A plurality of second springs 25 are fixedly connected between the cavities 24; before ejecting the power module 2, the connecting rod 23 is moved downward, the second spring 25 is compressed, the connecting rod 23 drives the U-shaped rod 19 to move downward, the U-shaped rod 19 drives the plug 20 and the stop block 22 to move downward, the plug block 20 opens the slot 21, releases the limit on the cover plate 18, and the stop block 22 moves downward to release the limit on the first base plate 10, and the power module 2 can be ejected through the ejection module.

[0023] Reference Figure 4A first rack 26 is slidably connected in the box body 3, and a first arc plate 27 is fixed to the bottom end of the first rack 26. The first arc plate 27 is located on the trajectory of the toggle plate 14 rotating around the first shaft 13. A second shaft 28 is rotatably connected in the box body 3. The outer surface of the second shaft 28 is fixed with a gear 29 meshing with the first rack 26. A second rack 30 is meshed on one side of the gear 29. A connecting rod 33 is rotatably connected to the second rack 30. One side of the connecting rod 33 The L-shaped rod 31 is rotatably connected to the box body 3, and the L-shaped rod 31 is slidably connected to the box body 3. One end of the L-shaped rod 31 is fixedly connected to the second curved plate 32. The toggle plate 14 is located between the first curved plate 27 and the second curved plate 32. When the power module 2 needs to be ejected, the first motor 12 drives the toggle plate 14 to rotate. The toggle plate 14 rotates slowly at first. The toggle plate 14 will press the first curved plate 27 to move upward, and the first curved plate 27 drives the first rack 26 to move upward. The second curved plate 32 drives the L-shaped rod 31 to move, and the L-shaped rod 31 drives the second rack 30 to move downward, thereby releasing the limit of the cover plate 18 and the first bottom plate 10. The upward movement of the second rack 30 can also drive the L-shaped rod 31 to move through the connecting rod 33, and the L-shaped rod 31 drives the second curved plate 32 to move in the direction of the first rotating shaft 13, so that the second curved plate 32 is located on the trajectory of the toggle plate 14 rotating around the first rotating shaft 13. After the toggle plate 14 passes the first curved plate 27, it starts to rotate rapidly. The rapid rotation can eject the power module 2. When the toggle plate 14 passes the first movable plate 15 and rotates slowly, the toggle plate 14 will press the second curved plate 32 to move, and the second curved plate 32 drives the L-shaped rod 31 to move. The L-shaped rod 31 drives the second rack 30 to move through the connecting rod 33, thereby resetting the connecting rod 23, and the connecting rod 23 resets the plug block 20 and the stopper 22.

[0024] Reference Figure 4 and Figure 5 A fixed plate 34 is fixed in the box body 3, and a third spring 35 is fixed on the fixed plate 34. One end of the third spring 35 is fixedly connected to a second movable plate 36 slidably connected in the box body 3. A rubber block 37 is fixed on the second movable plate 36. A circular groove 38 is provided on the first rack 26; when the first rack 26 moves upward, under the action of the third spring 35, the rubber block 37 is inserted into the circular groove 38 to limit the first rack 26, thereby limiting the insertion block 20 and the stop block 22 to prevent the insertion block 20 and the stop block 22 from resetting. When it is necessary to reset the insertion block 20 and the stop block 22, the toggle plate 14 squeezes and presses the second arc plate 32, thereby causing the first rack 26 to move downward and the rubber block 37 to leave the circular groove 38.

[0025] Reference Figure 2A second bottom plate 39 is provided in the box body 3, a backup power supply 40 is installed on the top of the second bottom plate 39, and the first bottom plate 10 is located on the top of the backup power supply 40; by setting the backup power supply 40, when the power module 2 is ejected, the backup power supply 40 plays a power supply role.

[0026] Reference Figure 1 and Figure 6 The top of the box body 3 is fixedly connected to a shell 41. A smoke sensor, a temperature sensor and a gas sensor are provided in the shell 41. The smoke sensor is used to monitor whether the power module 2 generates smoke, the temperature sensor is used to monitor the temperature of the power module 2, and the gas sensor is used to monitor the characteristic gas generated by the combustion of the power module 2. The suppression component and the ejection component are both controlled by the main controller to open and close, and the data monitored by the smoke sensor, temperature sensor and gas sensor are all transmitted to the main controller; when the temperature of the power module 2 suddenly rises abnormally, the temperature sensor can detect the abnormal data and transmit the abnormal data to the main controller. When smoke appears at the power module 2, the smoke sensor can detect it and transmit the monitoring data to the main controller. The smoke is suppressed by the suppression component to avoid fire. When characteristic gas of fire is generated at the power module 2, the gas sensor can detect it and transmit the monitoring data to the main controller, and the power module 2 is ejected through the ejection component.

[0027] Working principle: When in use, the power module 2 supplies normal power to the drone body 1. When smoke appears in the power module 2, the suppression component suppresses the power module 2 to suppress the possibility of fire. When the power module 2 catches fire, the ejection module ejects the burning power module 2 out of the box body 3 to prevent damage to the drone body 1. When smoke appears in the power module 2, the suppression module needs to be activated. The air pump is started to release the carbon dioxide in the gas tank 4. The carbon dioxide is released to the vicinity of the power module 2 through the gas outlet 5, the L-shaped channel 6, the transverse channel 7 and the gas outlet 8. The carbon dioxide can effectively suppress the possibility of fire. By providing the inclined plate 9, the released carbon dioxide can be accurately dropped to the vicinity of the power module 2. By providing the first bottom plate 10 as a fireproof plate, in case of fire, the fire can be prevented from spreading downwards. When the power module 2 catches fire and the ejection module needs to be activated, the motor 12 is started, the motor 12 drives the first rotating shaft 13 to rotate, the first rotating shaft 13 drives the toggle plate 14 to rotate, so that the toggle plate 14 rotates rapidly toward the first movable plate 15, the toggle plate 14 can rapidly toggle the first movable plate 15, the first spring 17 is compressed, the first movable plate 15 drives the impact plate 16 to move, the impact plate 16 can hit the first bottom plate 10, the first bottom plate 10 drives the power module 2 to eject out of the box body 3, thereby achieving the purpose of automatically ejecting the power module 2, and under the action of the first spring 17, the first movable plate 15 and the impact plate 16 are reset; Before ejecting the power module 2, the connecting rod 23 is moved downward, the second spring 25 is compressed, the connecting rod 23 drives the U-shaped rod 19 downward, the U-shaped rod 19 drives the insert block 20 and the stop block 22 downward, the insert block 20 opens the slot 21, releasing the restraint on the cover plate 18, and the stop block 22 moves downward to release the restraint on the first base plate 10, so that the power module 2 can be ejected through the ejection module; When the power module 2 needs to be ejected, the first motor 12 drives the toggle plate 14 to rotate. The toggle plate 14 rotates slowly first. The toggle plate 14 will press the first arc plate 27 to move upward. The first arc plate 27 drives the first rack 26 to move upward. The first rack 26 drives the gear 29 to rotate. The gear 29 drives the second rack 30 to move downward. The second rack 30 drives the connecting rod 23 to move downward, thereby releasing the limit of the cover plate 18 and the first bottom plate 10. The second rack 30 moves upward and can also drive the L-shaped rod 31 to move through the connecting rod 33. The L-shaped rod 31 drives the second arc plate 27 to move upward. The plate 32 moves toward the first rotation axis 13, so that the second curved plate 32 is located on the trajectory of the toggle plate 14 rotating around the first rotation axis 13. After passing the first curved plate 27, the toggle plate 14 begins to rotate rapidly. The rapid rotation can eject the power module 2. After passing the first movable plate 15, the toggle plate 14 rotates slowly, forcing the second curved plate 32 to move. The second curved plate 32 drives the L-shaped rod 31 to move. The L-shaped rod 31 drives the second rack 30 to move through the connecting rod 33, thereby resetting the connecting rod 23. The connecting rod 23 resets the insert block 20 and the stop block 22. When the first rack 26 moves upward, under the action of the third spring 35, the rubber block 37 is inserted into the circular groove 38 to limit the first rack 26, thereby limiting the insertion block 20 and the stopper 22, preventing the insertion block 20 and the stopper 22 from returning to their original positions. When it is necessary to return the insertion block 20 and the stopper 22, the toggle plate 14 squeezes and presses the second arc-shaped plate 32, thereby causing the first rack 26 to move downward and the rubber block 37 to leave the circular groove 38. By setting up a backup power supply 40, when the power module 2 is ejected, the backup power supply 40 plays a role in power supply; When the temperature of the power module 2 suddenly rises abnormally, the temperature sensor can monitor the abnormal data and transmit the abnormal data to the main controller. When smoke appears at the power module 2, the smoke sensor can monitor it and transmit the monitoring data to the main controller. The smoke is suppressed by the suppression component to avoid fire. When characteristic gas of fire is generated at the power module 2, the gas sensor can monitor it and transmit the monitoring data to the main controller. The power module 2 is ejected through the ejection component.

[0028] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0029] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drone for terrain mapping, comprising a drone body (1), the drone body (1) comprising a power supply module (2) for power supply, characterized in that: Also includes: A box body (3) is provided on the drone body (1), the power module (2) is provided in a mounting cavity of the box body (3), and a suppression component for suppressing a fire of the power module (2) and an ejection module for ejecting the power module (2) out of the box body (3) are provided in the box body (3).

2. The UAV for terrain surveying and mapping according to claim 1, characterized in that: The suppression module includes a gas storage tank (4) arranged in a box body (3), an air outlet head (5) is installed on the gas storage tank (4), an air pump is arranged in the gas storage tank (4), an L-shaped channel (6) connected to the air outlet head (5) is opened in the box body (3), a transverse channel (7) connected to the L-shaped channel (6) is opened in the box body (3), a plurality of air outlets (8) connected to the transverse channel (7) are opened in the box body (3), an inclined plate (9) facing the air outlet (8) is fixed in the installation cavity of the box body (3), and a first bottom plate (10) is fixed to the bottom of the power module (2), and the first bottom plate (10) is a fireproof plate.

3. The UAV for terrain surveying and mapping according to claim 2, characterized in that: The ejection module includes a first cavity (11) opened in a box body (3), a motor (12) is fixedly connected in the box body (3), an output shaft of the motor (12) is fixedly connected to a first rotating shaft (13), an outer wall of the first rotating shaft (13) is fixedly connected to a toggle plate (14), a first movable plate (15) is slidably connected in the first cavity (11), a top end of the first movable plate (15) is located on a trajectory of the toggle plate (14) rotating around the first rotating shaft (13), an impact plate (16) in contact with the first bottom plate (10) is fixedly connected to the first movable plate (15), and a first spring (17) is fixedly connected between the first movable plate (15) and the first cavity (11).

4. The UAV for terrain surveying and mapping according to claim 3, characterized in that: One end of the box body (3) is hingedly connected to a cover plate (18), a U-shaped rod (19) is slidably connected inside the box body (3), one end of the U-shaped rod (19) is fixedly connected to an insert block (20), a slot (21) is provided at the bottom of the cover plate (18), the insert block (20) is inserted into the slot (21), the other end of the U-shaped rod (19) is fixedly connected to a stop block (22), the stop block (22) abuts against one side of the first bottom plate (10), a connecting rod (23) is fixedly connected to the bottom of the U-shaped rod (19), a second cavity (24) is provided inside the box body (3), and a plurality of second springs (25) are fixedly connected between the connecting rod (23) and the second cavity (24).

5. The UAV for terrain surveying and mapping according to claim 4, characterized in that: A first rack (26) is slidably connected in the box body (3), a first arc plate (27) is fixed to the bottom end of the first rack (26), and the first arc plate (27) is located on the trajectory of the toggle plate (14) rotating around the first rotating shaft (13). A second rotating shaft (28) is rotatably connected in the box body (3), and a gear (29) meshing with the first rack (26) is fixed to the outer surface of the second rotating shaft (28), and a second rack (30) is meshed on one side of the gear (29). A connecting rod (33) is rotatably connected to the second rack (30), and an L-shaped rod (31) is rotatably connected to one side of the connecting rod (33). The L-shaped rod (31) is slidably connected in the box body (3), and one end of the L-shaped rod (31) is fixed to the second arc plate (32). The toggle plate (14) is located between the first arc plate (27) and the second arc plate (32).

6. The UAV for terrain surveying and mapping according to claim 5, characterized in that: A fixed plate (34) is fixedly connected in the box body (3), a third spring (35) is fixedly connected to the fixed plate (34), one end of the third spring (35) is fixedly connected to a second movable plate (36) slidably connected in the box body (3), a rubber block (37) is fixedly connected to the second movable plate (36), and a circular groove (38) is formed on the first rack (26).

7. The UAV for terrain surveying and mapping according to claim 6, characterized in that: A second bottom plate (39) is provided in the box body (3), a backup power supply (40) is installed on the top of the second bottom plate (39), and the first bottom plate (10) is located on the top of the backup power supply (40).

8. The UAV for terrain surveying and mapping according to claim 7, characterized in that: A shell (41) is fixedly connected to the top of the box body (3), and a smoke sensor, a temperature sensor, and a gas sensor are arranged in the shell (41). The smoke sensor is used to monitor whether the power module (2) generates smoke, the temperature sensor is used to monitor the temperature of the power module (2), and the gas sensor is used to monitor characteristic gases generated by combustion of the power module (2).

9. The UAV for terrain surveying and mapping according to claim 8, characterized in that: The suppression assembly and the ejection assembly are both opened and closed by the main controller, and the data monitored by the smoke sensor, temperature sensor and gas sensor are all transmitted to the main controller.

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