Surveying instrument fixing structure for surveying of unmanned aerial vehicle

Abstract

The surveying and mapping instrument fixing structure comprises the unmanned aerial vehicle and two bottom frames fixedly installed at the bottom of the unmanned aerial vehicle, a surveying and mapping instrument fastening structure is arranged at the bottom of the unmanned aerial vehicle, and a driving structure is arranged outside the surveying and mapping instrument fastening structure. The surveying instrument fastening structure comprises a mounting frame fixedly mounted at the bottom of the unmanned aerial vehicle, and limiting grooves are formed in the front side wall and the rear side wall of an inner cavity of the mounting frame. A fixing plate and surveying and mapping equipment are limited in a mounting frame through two limiting grooves, then a double-shaft motor drives two bidirectional lead screws to rotate to force four internal thread blocks to get close to each other, and the four internal thread blocks drive two extrusion plates to descend through four connecting rods; when the two extrusion plates descend to be in contact with the top of the fixing plate, the fixing plate and the surveying and mapping equipment can be extruded and fixed in the mounting frame, and the structure is free of fear and loses elasticity during use, so that the effects of stability and durability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle surveying, in particular to a surveying instrument fixing structure used for unmanned aerial vehicle surveying. Background Art

[0002] A surveying and mapping drone is a device assembled using drones and surveying and mapping equipment. It is used to detect and map areas that are not convenient for manual measurement, reduce risks to staff, and improve surveying and mapping efficiency.

[0003] Chinese patent publication number CN219948578U proposes "a surveying instrument fixing device for unmanned aerial vehicle surveying and mapping". The technical solution proposes the problem that "most of the existing surveying instruments are fixed to the bottom of the unmanned aerial vehicle by screw installation. The surveying instruments need to be twisted with a screwdriver when they are installed and disassembled. There are a certain number of screws, and the disassembly and assembly operations are not convenient. Moreover, after the unmanned aerial vehicle surveying and mapping instrument frequently flies and surveys, the screws are prone to loosening, affecting the installation effect of the unmanned aerial vehicle surveying and mapping instrument". The utility model provides the following technical solution: "Through the elastic force of two springs, the two blocks are reset to block the mounting block, so that the four L-shaped blocks are respectively fixed to the four sides of the top of the mounting plate, replacing the installation method of twisting the screws with a screwdriver, thereby facilitating the installation and fixing operation of the unmanned aerial vehicle surveying and mapping instrument."

[0004] The above scheme has the following defects in actual use: the elastic force of the spring is needed to fix the surveying instrument on the drone, but the spring will lose its elastic force after long-term use. Therefore, the above device is not stable and durable enough in later use. Therefore, a surveying instrument fixing structure for drone surveying is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a surveying instrument fixing structure for unmanned aerial vehicle surveying and mapping, which has the advantages of stability and durability.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a surveying instrument fixing structure for unmanned aerial vehicle surveying, comprising an unmanned aerial vehicle and two base frames fixedly installed at the bottom of the unmanned aerial vehicle, a surveying instrument fastening structure is arranged at the bottom of the unmanned aerial vehicle, and a driving structure is arranged outside the surveying instrument fastening structure.

[0007] The surveying and mapping instrument fastening structure includes an installation frame fixedly installed on the bottom of the drone, the front and rear side walls of the inner cavity of the installation frame are provided with limit grooves, a fixing plate is movably installed inside the installation frame, and a surveying and mapping device is fixedly installed on the top of the fixing plate, and an extrusion fastening mechanism is provided inside the two limit grooves.

[0008] The extrusion fastening mechanism includes two bidirectional lead screws rotatably installed inside the installation frame. Two internal thread blocks, each with a quantity of two, are threadedly installed on the outer sides of the two bidirectional lead screws. Connecting rods are rotatably installed at the bottoms of the four internal thread blocks. The bottoms of the front and rear connecting rods are rotatably installed with an extrusion plate. Limiting sliders, which penetrate to the inside of the chassis, are fixedly installed on the outer sides of the two extrusion plates.

[0009] Furthermore, the driving structure includes first bevel gears fixedly installed on the backs of the two bidirectional lead screws. A dual-shaft motor is fixedly installed inside the installation frame. Second bevel gears are fixedly installed on the left and right output ends of the dual-shaft motor. A protective cover is fixedly installed on the back of the installation frame.

[0010] Furthermore, the installation frame is located between the two chassis. The height of the installation frame is less than the height of the chassis. The outside of the installation frame has a "C" shape structure.

[0011] Furthermore, the fixing plate is movably installed inside the two limiting slots. The surveying and mapping equipment penetrates to the front of the installation frame. The two bidirectional lead screws are respectively located inside the two limiting slots.

[0012] Furthermore, the two extrusion plates are respectively located on the left and right sides of the surveying and mapping equipment. The two extrusion plates are both located on the top of the fixing plate. The two limiting sliders are respectively slidably installed inside the left and right walls of the installation frame.

[0013] Furthermore, the two first bevel gears are both located on the back of the installation frame. The two second bevel gears are respectively meshed and installed on the backs of the two first bevel gears. The protective cover is sleeved on the outsides of the first bevel gears, the dual-shaft motor, and the second bevel gears.

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

[0015] The fixing structure of the surveying instrument for UAV surveying and mapping restricts the fixing plate and the surveying and mapping equipment inside the installation frame through the two opened limiting slots. Then, the dual-shaft motor drives the two bidirectional lead screws to rotate, forcing the four internal thread blocks to approach each other. The four internal thread blocks drive the two extrusion plates to descend through the four connecting rods. When the two extrusion plates descend and contact the top of the fixing plate, the fixing plate and the surveying and mapping equipment can be extruded and fixed inside the installation frame. This structure is not afraid of losing elasticity during use, thus achieving the effect of being stable and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the installation frame of the present utility model;

[0018] Figure 3Schematic diagram of the fastening structure of the surveying instrument of the present utility model;

[0019] Figure 4 Bottom view of the structure of the present utility model.

[0020] In the figure: 1, unmanned aerial vehicle; 2, chassis; 3, mounting frame; 4, limiting groove; 5, fixing plate; 6, surveying equipment; 7, bidirectional lead screw; 8, internally threaded block; 9, connecting rod; 10, pressing plate; 11, limiting slider; 12, first bevel gear; 13, dual-axis motor; 14, second bevel gear; 15, protective cover. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1-4 , a surveying instrument fixing structure for unmanned aerial vehicle surveying in this embodiment, includes an unmanned aerial vehicle 1 and two chassis 2 fixedly installed at the bottom of the unmanned aerial vehicle 1. A surveying instrument fastening structure is provided at the bottom of the unmanned aerial vehicle 1, and a driving structure is provided outside the surveying instrument fastening structure.

[0023] The surveying instrument fastening structure includes a mounting frame 3 fixedly installed at the bottom of the unmanned aerial vehicle 1. The mounting frame 3 is located between the two chassis 2. The height of the mounting frame 3 is less than the height of the chassis 2, so that the two chassis 2 support the bottom of the unmanned aerial vehicle. The outside of the mounting frame 3 is in a "C" shape structure. Limiting grooves 4 are opened on the front and rear side walls of the inner cavity of the mounting frame 3. A fixing plate 5 is movably installed inside the mounting frame 3. The fixing plate 5 is movably installed inside the two limiting grooves 4. A surveying device 6 is fixedly installed on the top of the fixing plate 5. The surveying device 6 penetrates to the front of the mounting frame 3. The surveying device 6 is restricted inside the mounting frame 3 through the fixing plate 5. The bottoms of the two opened limiting grooves 4 can support the bottom of the fixing plate 5. Pressing and fastening mechanisms are opened inside the two limiting grooves 4;

[0024] The extrusion and fastening mechanism includes two bidirectional lead screws 7 rotatably mounted inside the mounting frame 3, the two bidirectional lead screws 7 are respectively located inside the two limit grooves 4, the outer parts of the two bidirectional lead screws 7 are threadedly mounted with two internal thread blocks 8, the bottoms of the four internal thread blocks 8 are rotatably mounted with connecting rods 9, the bottoms of the front and rear connecting rods 9 are rotatably mounted with extrusion plates 10, the two extrusion plates 10 are respectively located on the left and right sides of the surveying and mapping equipment 6, and the two extrusion plates 10 are both located on the top of the fixed plate 5, and the two internal thread blocks 8 can be brought close to each other by driving the bidirectional lead screw 7 to rotate forward and reversely. and away from each other. At this time, the two internal thread blocks 8 in the moving state can drive the extrusion plate 10 to rise and fall on the top of the fixed plate 5 through the two connecting rods 9. When the two extrusion plates 10 descend and contact the top of the fixed plate 5, the fixed plate 5 and the surveying and mapping equipment 6 can be squeezed and fixed inside the mounting frame 3. The outer sides of the two extrusion plates 10 are fixedly installed with limit sliders 11 that penetrate into the interior of the base frame 2. The two limit sliders 11 are respectively slidably installed inside the left and right walls of the mounting frame 3. The two extrusion plates 10 are respectively limited to rise and fall inside the two limit slots 4 by the two limit sliders 11.

[0025] The driving structure includes a No. 1 bevel gear 12 fixedly mounted on the back of the two bidirectional lead screws 7, the two No. 1 bevel gears 12 are both located on the back of the mounting frame 3, a dual-axis motor 13 is fixedly mounted inside the mounting frame 3, and a No. 2 bevel gear 14 is fixedly mounted on the left and right output ends of the dual-axis motor 13, and the two No. 2 bevel gears 14 are respectively meshed and mounted on the back of the two No. 1 bevel gears 12, and the two No. 2 bevel gears 14 are driven by the dual-axis motor 13 to rotate forward and reversely, and the two No. 2 bevel gears 14 can respectively drive the two bidirectional lead screws 7 to rotate through the two No. 1 bevel gears 12, and a protective cover 15 is fixedly mounted on the back of the mounting frame 3, and the protective cover 15 is mounted on the outside of the No. 1 bevel gear 12, the dual-axis motor 13 and the No. 2 bevel gear 14, and the outside of the No. 1 bevel gear 12, the dual-axis motor 13 and the No. 2 bevel gear 14 is protected by the protective cover 15.

[0026] The working principle of the above embodiment is:

[0027] During installation, first insert the fixed plate 5 and the surveying and mapping equipment 6 into the interior of the installation frame 3. At this time, the fixed plate 5 is in the two limit grooves 4. Then the dual-axis motor 13 drives the two No. 2 bevel gears 14 to rotate forward. The two No. 2 bevel gears 14 drive the two bidirectional lead screws 7 to rotate synchronously through the two No. 1 bevel gears 12. The two bidirectional lead screws 7 in the rotating state force the four internal thread blocks 8 to approach each other. The four internal thread blocks 8 drive the two extrusion plates 10 to descend through the four connecting rods 9. When the two extrusion plates 10 descend and contact the top of the fixed plate 5, the fixed plate 5 and the surveying and mapping equipment 6 can be squeezed and fixed in the interior of the installation frame 3. When the fixed plate 5 and the surveying and mapping equipment 6 need to be taken out, the dual-axis motor 13 drives the two bidirectional lead screws 7 to rotate in the opposite direction, forcing the four internal thread blocks 8 to move away from each other. Then the four internal thread blocks 8 can pull the two extrusion plates 10 up through the four connecting rods 9. At this time, the top of the fixed plate 5 loses its restriction and can be taken out.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surveying instrument fixing structure for unmanned aerial vehicle surveying and mapping, comprising an unmanned aerial vehicle (1) and two chassis (2) fixedly mounted on the bottom of the unmanned aerial vehicle (1), characterized in that: A surveying instrument fastening structure is provided at the bottom of the unmanned aerial vehicle (1), and a driving structure is arranged outside the surveying instrument fastening structure; The surveying instrument fastening structure includes a mounting frame (3) fixedly installed at the bottom of the unmanned aerial vehicle (1). Limiting grooves (4) are formed in the front and rear side walls of the inner cavity of the mounting frame (3). A fixing plate (5) is movably installed inside the mounting frame (3). A surveying device (6) is fixedly installed at the top of the fixing plate (5). Extrusion fastening mechanisms are arranged inside both of the limiting grooves (4); The extrusion fastening mechanism includes two bidirectional lead screws (7) rotatably installed inside the mounting frame (3). A number of two internal thread blocks (8) are threadedly installed on the outside of both of the bidirectional lead screws (7). Connecting rods (9) are rotatably installed at the bottoms of all four of the internal thread blocks (8). An extrusion plate (10) is rotatably installed at the bottoms of the front and rear connecting rods (9). Limiting sliders (11) penetrating into the inside of the chassis (2) are fixedly installed on the outer sides of both of the extrusion plates (10).

2. The surveying instrument fixing structure for unmanned aerial vehicle surveying and mapping according to claim 1 is characterized in that: The driving structure includes first bevel gears (12) fixedly installed on the backs of the two bidirectional lead screws (7). A dual-axis motor (13) is fixedly installed inside the mounting frame (3). Second bevel gears (14) are fixedly installed at the left and right output ends of the dual-axis motor (13). A protective cover (15) is fixedly installed on the back of the mounting frame (3).

3. The surveying instrument fixing structure for unmanned aerial vehicle surveying and mapping according to claim 1 is characterized in that: The mounting frame (3) is located between the two chassis (2). The height of the mounting frame (3) is less than the height of the chassis (2). The outside of the mounting frame (3) is of a "C" shape structure.

4. The surveying instrument fixing structure for unmanned aerial vehicle surveying and mapping according to claim 1 is characterized in that: The fixing plate (5) is movably installed inside the two limiting grooves (4). The surveying device (6) penetrates to the front of the mounting frame (3). The two bidirectional lead screws (7) are respectively located inside the two limiting grooves (4).

5. The surveying instrument fixing structure for unmanned aerial vehicle surveying and mapping according to claim 1 is characterized in that: The two extrusion plates (10) are respectively located on the left and right sides of the surveying device (6). The two extrusion plates (10) are both located at the top of the fixing plate (5). The two limiting sliders (11) are respectively slidably installed inside the left and right walls of the mounting frame (3).

6. The surveying instrument fixing structure for unmanned aerial vehicle surveying and mapping according to claim 2 is characterized in that: The two first bevel gears (12) are both located on the back of the mounting frame (3). The two second bevel gears (14) are respectively meshed and installed on the backs of the two first bevel gears (12). The protective cover (15) is sleeved outside the first bevel gears (12), the dual-axis motor (13), and the second bevel gears (14).

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