Land geographic information surveying device

Abstract

The application belongs to the technical field of geographic information surveying and mapping unmanned aerial vehicle, and specifically discloses a land geographic information surveying and mapping device, which comprises a UAV body, one end of the UAV body is fixedly connected with a mounting seat, the lower end of the UAV body is provided with a surveying and mapping instrument, the upper end of the mounting seat is provided with a motor, the upper end of the motor is provided with a propeller, the outer side of the mounting seat is provided with a ventilation mechanism, and the upper end of the ventilation mechanism is provided with a dispersion mechanism. Through cooperation between the ventilation mechanism and the dispersion mechanism, the gas can flow down from the ventilation groove to the drainage groove and the outflow groove in a stable manner, the flow layout around the propeller is optimized, the dynamic stability of the UAV body lift output is improved, and the surveying and mapping instrument can accurately and effectively survey the land geographic information.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of geographic information surveying and mapping unmanned aerial vehicles, and specifically discloses a land geographic information surveying and mapping device. BACKGROUND

[0002] Unmanned aerial vehicle surveying and mapping is a technical method for obtaining aerial data by using an unmanned aerial vehicle to carry a sensor, realizing rapid and high-precision surveying and mapping, three-dimensional modeling and data processing of ground objects. In practical applications, the unmanned aerial vehicle surveying and mapping technology can complete land surveying, building surveying, surveying and evaluation, monitoring and management, three-dimensional modeling and other operations. For example, in the field of national land surveying and mapping, unmanned aerial vehicle surveying and mapping can be used for dynamic monitoring and investigation of national land resources, updating of land use and cover maps and other work; in the field of environmental monitoring, unmanned aerial vehicle surveying and mapping can accurately obtain high-resolution aerial images and timely monitor environmental pollution and other problems; in the field of agriculture and forestry, unmanned aerial vehicle surveying and mapping can be used for farmland navigation, land right confirmation, farmland plant protection operations and the like, improving operation efficiency and precision.

[0003] Most of the previous land geographic information surveying and mapping devices use an unmanned aerial vehicle as the main body, and a surveying and mapping instrument carried by the unmanned aerial vehicle is used to survey and map the land. When the unmanned aerial vehicle surveys and maps the land geographic information in the air, the unmanned aerial vehicle body cannot maintain a relatively stable balance due to the influence of air flow during takeoff and flight. Meanwhile, there are relatively turbulent air flows around the unmanned aerial vehicle during takeoff, which makes the air flow disturb a large amount of particulate matters. The particulate matters are likely to impact the carried surveying and mapping instrument, thereby affecting the land geographic information collection of the surveying and mapping instrument after takeoff and affecting the collection data. SUMMARY

[0004] The application aims to solve the problems in the prior art and provides a land geographic information surveying and mapping device.

[0005] To achieve the above object, the application provides a land geographic information surveying and mapping device, which comprises a unmanned aerial vehicle body, one end of the unmanned aerial vehicle body is fixedly connected with a mounting seat, the lower end of the unmanned aerial vehicle body is provided with a surveying and mapping instrument, the upper end of the mounting seat is provided with a motor, the upper end of the motor is provided with a propeller, the outer side of the mounting seat is provided with a ventilation mechanism, the upper end of the ventilation mechanism is provided with a dispersion mechanism, and the lower end of the unmanned aerial vehicle body is fixedly connected with landing gears on the two sides close to the surveying and mapping instrument.

[0006] In the above technical solution, preferably, the ventilation mechanism comprises a connecting piece fixedly connected to the outer side of the mounting seat, the outer side of the connecting piece is fixedly connected with a chassis, the upper end of the chassis is provided with a ventilation groove, the inside of the chassis is provided with a regulation groove, and the inside of the chassis is provided with a sliding groove close to the regulation groove.

[0007] In the above technical scheme, preferably, the control groove is connected with the sliding groove, the inner side of the control groove is slidably connected with the main baffle, the inner side of the control groove close to the main baffle is slidably connected with the auxiliary baffle, the inner side of the sliding groove is slidably connected with the control frame, the inner side of the control frame is provided with the electric wheel, the inner side of the electric wheel is provided with the mounting shaft, and the front end of the auxiliary baffle is drivingly connected with the transmission wheel.

[0008] In the above technical scheme, preferably, the inner side of the transmission wheel is movably connected with the supporting shaft, the rear end of the control frame is fixedly connected with the control frame, the inside of the control frame is provided with the adjusting groove, and the inner side of the adjusting groove is movably connected with the connecting rod.

[0009] In the above technical scheme, preferably, the upper end of the control frame is provided with the movable groove, the inner side of the movable groove is movably connected with the control rod, the shape of the chassis is C-shaped, the main baffle and the auxiliary baffle block the air permeation groove, the mounting shaft penetrates the inside of the chassis, and the mounting shaft is movably connected with the chassis.

[0010] In the above technical scheme, preferably, the front end of the electric wheel is drivingly connected with the inner wall of the control frame, and the front end of the transmission wheel is drivingly connected with the side of the rear end of the control frame close to the control frame.

[0011] In the above technical scheme, preferably, the supporting shaft penetrates the inside of the chassis, the supporting shaft is movably connected with the chassis, one end of the connecting rod is fixedly connected with one end of the main baffle, the control rod penetrates the inside of the connecting rod, and the control rod is fixedly connected with the connecting rod.

[0012] In the above technical scheme, preferably, the dispersion mechanism comprises a wind gathering bin fixedly connected to the upper end of the chassis, an air outlet bin fixedly connected to the outer side of the wind gathering bin, a drainage groove provided on the side of the outer side of the wind gathering bin close to the air outlet bin, an air outlet provided on the inner wall of the wind gathering bin, an ascending bin fixedly connected to the upper end of the wind gathering bin, an outer flow groove provided on the outer side of the ascending bin, and an inner flow groove provided on the inner wall of the ascending bin.

[0013] In the above technical scheme, preferably, the axis of the ascending bin, the wind gathering bin, the chassis, the connecting piece and the propeller is located on the same straight line, the drainage groove corresponds to the outer flow groove, the outer side and the inner wall of the ascending bin are provided with the outer flow groove and the inner flow groove, so that the cross section of the ascending bin is formed in a zigzag shape, the opening diameter of the upper end of the ascending bin is smaller than the opening diameter of the lower end, the opening of the upper end of the ascending bin is located directly above the connecting piece, the propeller is located in the inner side of the wind gathering bin, and the air outlet corresponds to the air outlet bin.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1、Through the rotation of the propeller in the inside of the wind gathering bin, the propeller makes the gas outside the wind gathering bin flow to the wind gathering bin along the air outlet bin, and the gas outside the wind gathering bin flows along the flow guide groove and the outer flow groove, so as to limit the diffusion path of the gas, avoid the turbulence of the gas outside the wind gathering bin, optimize the structure layout around the propeller, realize the dynamic stability of the output of the unmanned aerial vehicle body lift, and avoid the suction of external particulate matter into the wind gathering bin and the impact of the particulate matter on the propeller.

[0016] 2、By starting the electric wheel, the control frame moves, so that the control frame drives the auxiliary baffle to move through the transmission wheel, and the control frame drives the main baffle to move through the control frame and the connecting rod, and the moving direction of the main baffle and the auxiliary baffle is different, so as to control the opening size of the air permeation groove, so that the gas can only flow downward from the air permeation groove, so as to avoid the turbulence of the gas, and ensure the stable operation of the unmanned aerial vehicle body, so that the surveying instrument can accurately and effectively survey the land geographic information.

[0017] 3、And the air flow generated by the propeller is guided through the air outlet bin, the flow guide groove, the outer flow groove, the inner flow groove, and then cooperates with the opening size of the air permeation groove, so that the gas flows stably downward from the air permeation groove, and then is adsorbed stably in the flow guide groove and the outer flow groove, so as to optimize the flow layout around the propeller, realize the dynamic stability of the output of the unmanned aerial vehicle body lift. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The overall structure schematic diagram of the land geographic information surveying device is provided for the present application.

[0019] Figure 2 The local structure schematic diagram of the land geographic information surveying device is provided for the present application. Figure One ;

[0020] Figure 3 The local structure schematic diagram of the land geographic information surveying device is provided for the present application. Figure Two ;

[0021] Figure 4 The air permeation mechanism structure schematic diagram of the land geographic information surveying device is provided for the present application.

[0022] Figure 5 The air permeation mechanism structure schematic diagram of the land geographic information surveying device is provided for the present application. Figure One ;

[0023] Figure 6 The air permeation mechanism structure schematic diagram of the land geographic information surveying device is provided for the present application. Figure Two;

[0024] Figure 7 The dispersion mechanism structure schematic view of the land geographic information surveying and mapping device is proposed in the application;

[0025] Figure 8 The dispersion mechanism local structure schematic view of the land geographic information surveying and mapping device is proposed in the application Figure One ;

[0026] Figure 9 The dispersion mechanism local structure schematic view of the land geographic information surveying and mapping device is proposed in the application Figure Two ;

[0027] Figure 10 The dispersion mechanism local structure schematic view of the land geographic information surveying and mapping device is proposed in the application Figure 6 A enlarged structure schematic view of the part A.

[0028] In the figure: 1, unmanned aerial vehicle body; 2, mounting seat; 3, surveying and mapping instrument; 4, motor; 5, propeller; 6, air permeation mechanism; 61, connecting piece; 62, chassis; 63, air permeation groove; 64, control groove; 65, sliding groove; 66, main baffle; 67, auxiliary baffle; 68, control frame; 69, electric wheel; 610, mounting shaft; 611, transmission wheel; 612, support shaft; 613, control frame; 614, adjusting groove; 615, connecting rod; 616, movable groove; 617, control rod; 7, dispersion mechanism; 71, wind gathering bin; 72, air outlet bin; 73, drainage groove; 74, air outlet; 75, rising bin; 76, outer flow groove; 77, inner flow groove; 8, landing frame. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0030] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed below.

[0031] As Figures 1-10 shown in a land geographic information surveying and mapping device, including unmanned aerial vehicle body 1, one end of unmanned aerial vehicle body 1 is fixedly connected with mounting seat 2, the lower end of unmanned aerial vehicle body 1 is installed with surveying and mapping instrument 3, the upper end of mounting seat 2 is installed with motor 4, the upper end of motor 4 is installed with propeller 5, the outer side of mounting seat 2 is provided with air permeation mechanism 6, the upper end of air permeation mechanism 6 is provided with dispersion mechanism 7, the lower end of unmanned aerial vehicle body 1 is fixedly connected with landing frame 8 on the side close to surveying and mapping instrument 3 and the other side.

[0032] The air permeable mechanism 6 comprises a connecting piece 61 fixedly connected to the outer side of the mounting base 2, the outer side of the connecting piece 61 is fixedly connected with a bottom disc 62, the upper end of the bottom disc 62 is provided with an air permeable groove 63, the inside of the bottom disc 62 is provided with a regulating groove 64, the side of the inside of the bottom disc 62 close to the regulating groove 64 is provided with a sliding groove 65, the regulating groove 64 and the sliding groove 65 are through, the inside of the regulating groove 64 is slidably connected with a main baffle 66, the side of the inside of the regulating groove 64 close to the main baffle 66 is slidably connected with a secondary baffle 67, the inside of the sliding groove 65 is slidably connected with a control frame 68, the inside of the control frame 68 is placed with an electric wheel 69, the inside of the electric wheel 69 is installed with a mounting shaft 610, the front end of the secondary baffle 67 is drivingly connected with a transmission wheel 611, the inside of the transmission wheel 611 is movably connected with a supporting shaft 612, the rear end of the control frame 68 is fixedly connected with a regulating frame 613, the inside of the regulating frame 613 is provided with an adjusting groove 614, the inside of the adjusting groove 614 is movably connected with a connecting rod 615, the upper end of the regulating frame 613 is provided with a movable groove 616, the inside of the movable groove 616 is movably connected with a regulating rod 617, the shape of the bottom disc 62 is C-shaped, the main baffle 66 and the secondary baffle 67 block the air permeable groove 63, the mounting shaft 610 penetrates through the inside of the bottom disc 62, the mounting shaft 610 is movably connected with the bottom disc 62, the front end of the electric wheel 69 is drivingly connected with the inner wall of the control frame 68, the front end of the transmission wheel 611 is drivingly connected with the side of the rear end of the control frame 68 close to the regulating frame 613, the supporting shaft 612 penetrates through the inside of the bottom disc 62, the supporting shaft 612 is movably connected with the bottom disc 62, one end of the connecting rod 615 is fixedly connected with one end of the main baffle 66, the regulating rod 617 penetrates through the inside of the connecting rod 615, the regulating rod 617 is fixedly connected with the connecting rod 615.

[0033] In use, the electric wheel 69 is activated, causing the control frame 68 to move. This, in turn, causes the control frame 68 to drive the auxiliary baffle 67 to slide inside the control groove 64 via the transmission wheel 611. Due to the transmission wheel 611, the auxiliary baffle 67 moves in the opposite direction to the control frame 68. Simultaneously, the control frame 68 drives the control frame 613 to move, which in turn pulls the connecting rod 615 via the control rod 617. This causes the connecting rod 615 to drive the main baffle 66 to slide inside the control groove 64, and the control groove 64 to move in the same direction as the control frame 68. Because the control groove 64 and the auxiliary baffle 67 move in different directions, they control the area of ​​the ventilation duct 63 opening, thereby controlling the hovering of the drone body 1 and enabling the drone body 1 to hover... During the process, the gas can only flow downwards through the ventilation duct 63, thus avoiding gas turbulence and ensuring the stable operation of the UAV body 1. This allows the surveying instrument 3 to accurately and effectively map the land geographic information. By activating the electric wheel 69, the control frame 68 is moved, which in turn drives the auxiliary baffle 67 via the transmission wheel 611. The control frame 68 also drives the main baffle 66 via the control frame 613 and connecting rod 615. The main baffle 66 and the auxiliary baffle 67 move in different directions, which facilitates the control of the opening size of the ventilation duct 63. This ensures that the gas can only flow downwards through the ventilation duct 63, thus avoiding gas turbulence and ensuring the stable operation of the UAV body 1. This allows the surveying instrument 3 to accurately and effectively map the land geographic information.

[0034] The dispersing mechanism 7 includes an air-gathering chamber 71 fixedly connected to the upper end of the chassis 62. An air outlet chamber 72 is fixedly connected to the outer side of the air-gathering chamber 71. A flow channel 73 is provided on the outer side of the air-gathering chamber 71 near the air outlet chamber 72. An air outlet 74 is provided on the inner wall of the air-gathering chamber 71. An ascending chamber 75 is fixedly connected to the upper end of the air-gathering chamber 71. An outward flow channel 76 is provided on the outer side of the ascending chamber 75. An inward flow channel 77 is provided on the inner wall of the ascending chamber 75. The ascending chamber 75, the air-gathering chamber 71, and the chassis are all included. 62. The axis of the connector 61 and the propeller 5 are on the same straight line. The flow channel 73 and the outer flow channel 76 correspond to each other. The outer flow channel 76 and the inner flow channel 77 on the outer and inner walls of the riser chamber 75 form a tortuous cross-section. The diameter of the upper opening of the riser chamber 75 is smaller than the diameter of the lower opening. The upper opening of the riser chamber 75 is located directly above the connector 61. The propeller 5 is located inside the wind gathering chamber 71. The air outlet 74 corresponds to the air outlet chamber 72.

[0035] The unmanned aerial vehicle body 1 is placed on the ground, the landing gear 8 contacts the ground, and then the surveying instrument 3 is started, and the unmanned aerial vehicle body 1 is started, the unmanned aerial vehicle body 1 controls the motor 4, the motor 4 drives the propeller 5 to rotate, and the propeller 5 rotates in the wind collecting bin 71, and the propeller 5 drives the surrounding airflow in the rotating process, and the propeller 5 inhales the airflow outside the wind collecting bin 71 inward, and the gas flows from the air outlet 74 into the wind collecting bin 71 along the air outlet bin 72, and the gas needs to be inhaled from the air outlet bin 72 into the wind collecting bin 71, so that the gas can flow more orderly, and the propeller 5 delivers the gas downward through the connecting piece 61 to provide upward lifting force, and the gas outside the wind collecting bin 71 flows along the drainage groove 73, and the gas contacts the rising bin 75, so that the gas flows along the outflow groove 76 outside the rising bin 75, so that the drainage groove 73 and the outflow groove 76 guide the gas diffusion path, the propeller 5 rotates in the wind collecting bin 71, the propeller 5 inhales the gas outside the wind collecting bin 71 along the air outlet bin 72 into the wind collecting bin 71, and the gas outside the wind collecting bin 71 flows along the drainage groove 73 and the outflow groove 76, which can achieve the purpose of limiting the diffusion path of the gas, thereby avoiding the phenomenon of turbulent flow of the gas outside the wind collecting bin 71, and optimizing the structure layout around the propeller 5 to realize the dynamic stability of improving the lift output of the unmanned aerial vehicle body 1, and the shape of the air outlet bin 72 and the rising bin 75 is limited, thereby avoiding the suction of external particulate matter into the wind collecting bin 71, and avoiding the impact of the particulate matter on the propeller 5, and when the unmanned aerial vehicle body 1 rises, the surveying instrument 3 surveys the land geographic information.

[0036] Working principle: in use, the worker first put the unmanned aerial vehicle body 1 on the ground, make the landing gear 8 contact to the ground, and then start the surveying instrument 3, and then start the unmanned aerial vehicle body 1, make the unmanned aerial vehicle body 1 control motor 4, make the motor 4 drive the propeller 5 rotate, and then make the propeller 5 rotate in the wind gathering warehouse 71, and make the propeller 5 rotate in the process of driving the surrounding airflow, and make the propeller 5 suck the airflow outside the wind gathering warehouse 71, and the gas flows from the air outlet 74 to the wind gathering warehouse 71 along the air outlet warehouse 72, and the gas needs to be sucked into the wind gathering warehouse 71 from the air outlet warehouse 72, so that the gas can flow more orderly, at the same time, the propeller 5 transmits the gas downward through the connecting piece 61, provides the upward lifting force, at the same time, the gas outside the wind gathering warehouse 71 flows along the drainage groove 73, and makes the gas contact the rising warehouse 75, so that the gas flows along the outflow groove 76 outside the rising warehouse 75, so that the drainage groove 73 and the outflow groove 76 guide the gas diffusion path, through the rotation of the propeller 5 in the wind gathering warehouse 71, the propeller 5 drives the gas outside the wind gathering warehouse 71 to flow into the wind gathering warehouse 71 along the air outlet warehouse 72, and the gas outside the wind gathering warehouse 71 flows along the drainage groove 73 and the outflow groove 76, which can achieve the purpose of limiting the diffusion path of the gas, thereby avoiding the phenomenon of turbulent flow of the gas outside the wind gathering warehouse 71, through the optimization of the structure layout around the propeller 5, the dynamic stability of the unmanned aerial vehicle body 1 is improved, and the shape of the air outlet warehouse 72 and the rising warehouse 75 is limited, thereby avoiding the suction of external particulate matter into the wind gathering warehouse 71, and avoiding the impact of particulate matter on the propeller 5, when the unmanned aerial vehicle body 1 rises, the surveying instrument 3 measures the land geographic information, and then starts the electric wheel 69, which drives the control frame 68 to move, and then drives the auxiliary baffle 67 to slide in the inside of the control groove 64 through the transmission wheel 611, and the transmission wheel 611 transmits the movement of the auxiliary baffle 67 and the control frame 68 in opposite directions, and the control frame 68 drives the control frame 613 to move, and then the control frame 613 pulls the connecting rod 615 through the control rod 617, which drives the main baffle 66 to slide in the inside of the control groove 64, and the control groove 64 moves in the direction of the control frame 68, so that the moving direction of the control groove 64 and the auxiliary baffle 67 is different, which controls the opening area of the air permeation groove 63 through the control groove 64 and the auxiliary baffle 67, and then controls the hovering of the unmanned aerial vehicle body 1, and the gas can only flow downward from the air permeation groove 63 during hovering, thereby avoiding the turbulent flow of the gas, and ensuring the smooth hovering of the unmanned aerial vehicle body 1, so that the surveying instrument 3 can accurately and effectively measure the land geographic information,And make the main baffle 66 and the auxiliary baffle 67 the moving direction is different, can reach the purpose of controlling the size of the air permeation groove 63 opening, further make gas only from the air permeation groove 63 downward flow, thereby avoid the gas turbulence condition occurs, and ensure the stable of the unmanned aerial vehicle body 1, make the surveying instrument 3 accurately and effectively survey the land geographic information, and the airflow generated by the propeller 5, through the air outlet bin 72, the drainage groove 73, the outflow groove 76, the inner flow groove 77 drainage, further cooperate with the opening size of the air permeation groove 63, so that the gas stably flows downward from the air permeation groove 63, and then stably adsorbed in the drainage groove 73, the outflow groove 76, so as to optimize the flow layout around the propeller 5, realize the dynamic stability of the unmanned aerial vehicle body 1 lift output is improved.

[0037] In the present application, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, "connecting" can be fixedly connected, or detachably connected, or integrally connected; it can be connected between, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the description of the present application, if the terms "one embodiment", "some embodiments", "specific embodiments" and the like are described, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A land geographic information mapping device, comprising an unmanned aerial vehicle (UAV) body (1), characterized in that, One end of the drone body (1) is fixedly connected to a mounting base (2), a surveying instrument (3) is installed at the lower end of the drone body (1), a motor (4) is installed at the upper end of the mounting base (2), a propeller (5) is installed at the upper end of the motor (4), a ventilation mechanism (6) is provided on the outside of the mounting base (2), a dispersing mechanism (7) is provided at the upper end of the ventilation mechanism (6), and a landing gear (8) is fixedly connected to both the side of the lower end of the drone body (1) near the surveying instrument (3) and the other side. The ventilation mechanism (6) includes a connector (61) fixedly connected to the outside of the mounting base (2). A chassis (62) is fixedly connected to the outside of the connector (61). A ventilation groove (63) is provided at the upper end of the chassis (62). An adjustment groove (64) is provided inside the chassis (62). A sliding groove (65) is provided on the side of the chassis (62) near the adjustment groove (64). The regulating groove (64) and the sliding groove (65) are connected. A main baffle (66) is slidably connected to the inner side of the regulating groove (64). A secondary baffle (67) is slidably connected to the inner side of the regulating groove (64) near the main baffle (66). A control frame (68) is slidably connected to the inner side of the sliding groove (65). An electric wheel (69) is placed on the inner side of the control frame (68). An installation shaft (610) is installed on the inner side of the electric wheel (69). A transmission wheel (611) is driven to the front end of the secondary baffle (67). The inner side of the transmission wheel (611) is movably connected to the support shaft (612), and the rear end of the control frame (68) is fixedly connected to the adjustment frame (613). The adjustment frame (613) has an adjustment groove (614) inside, and the inner side of the adjustment groove (614) is movably connected to the connecting rod (615). The upper end of the control frame (613) is provided with a movable groove (616), and the inner side of the movable groove (616) is movably connected to the control rod (617). The chassis (62) is C-shaped. The main baffle (66) and the auxiliary baffle (67) block the ventilation groove (63). The mounting shaft (610) penetrates the interior of the chassis (62) and is movably connected to the chassis (62).

2. The land geographic information mapping device according to claim 1, characterized in that, The front end of the electric wheel (69) is connected to the inner wall of the control frame (68) via a transmission connection, and the front end of the transmission wheel (611) is connected to the rear end of the control frame (68) near the control frame (613) via a transmission connection.

3. The land geographic information mapping device according to claim 1, characterized in that, The support shaft (612) passes through the interior of the chassis (62), and the support shaft (612) is movably connected to the chassis (62). One end of the connecting rod (615) is fixedly connected to one end of the main baffle (66). The adjusting rod (617) passes through the interior of the connecting rod (615), and the adjusting rod (617) is fixedly connected to the connecting rod (615).

4. The land geographic information mapping device according to claim 1, characterized in that, The dispersing mechanism (7) includes a wind-gathering chamber (71) fixedly connected to the upper end of the chassis (62). An air outlet chamber (72) is fixedly connected to the outer side of the wind-gathering chamber (71). A flow channel (73) is provided on the outer side of the wind-gathering chamber (71) near the air outlet chamber (72). An air outlet (74) is provided on the inner wall of the wind-gathering chamber (71). An ascending chamber (75) is fixedly connected to the upper end of the wind-gathering chamber (71). An external flow channel (76) is provided on the outer side of the ascending chamber (75). An internal flow channel (77) is provided on the inner wall of the ascending chamber (75).

5. A land geographic information mapping device according to claim 4, characterized in that, The centerlines of the riser (75), the wind-gathering chamber (71), the chassis (62), the connector (61), and the propeller (5) are on the same straight line. The flow channel (73) corresponds to the outer flow channel (76). The outer side of the riser (75) and the outer flow channel (76) and the inner flow channel (77) form a tortuous cross-section. The upper opening diameter of the riser (75) is smaller than the lower opening diameter. The upper opening of the riser (75) is located directly above the connector (61). The propeller (5) is located inside the wind-gathering chamber (71). The air outlet (74) corresponds to the air outlet chamber (72).

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