Shock absorption structure of surveying and mapping unmanned aerial vehicle

Abstract

The utility model discloses a shock absorption structure of a surveying and mapping unmanned aerial vehicle, which relates to the technical field of surveying and mapping unmanned aerial vehicles, and particularly comprises a fixed disc, the fixed disc is connected with the surveying and mapping unmanned aerial vehicle through a bolt, the bottom of the fixed disc is movably connected with a limiting pipe, and the limiting pipe is matched with a nut of the bolt. The fixing disc is connected with a fixing structure used for fixing a surveying and mapping instrument through a connecting damping structure. The connection damping structure comprises a reinforcing rod, and the top end of the reinforcing rod is connected with a first isolation sleeve through a damping pad. According to the damping structure of the surveying and mapping unmanned aerial vehicle, through the arrangement of the connecting damping structure, the isolating ring and the fixing plate, the resilience force of the damping pad and the isolating ring can reduce vibration and reduce the mutual influence between a surveying and mapping instrument and the surveying and mapping unmanned aerial vehicle, so that the surveying and mapping instrument can be kept stable during use, and surveying and mapping are facilitated; the size of the fixing plate can be adjusted according to requirements, wind resistance of the structure in use is reduced, and the stability of the surveying and mapping unmanned aerial vehicle in flight is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of surveying and mapping unmanned aerial vehicles, in particular to a shock absorbing structure of a surveying and mapping unmanned aerial vehicle. Background Art

[0002] A surveying and mapping UAV is a light, agile, and efficient measuring tool that is widely used in map making, urban planning, land surveying, and other fields. Since the UAV will vibrate due to factors such as wind during flight, and vibration will affect the use of surveying and mapping instruments, a shock-absorbing structure needs to be designed in the surveying and mapping UAV. Some solutions on the shock-absorbing structure of surveying and mapping UAVs are disclosed in the prior art, such as a special shock-absorbing structure for a surveying and mapping UAV camera disclosed in the authorized patent with application number CN202220208479.8, including a first mounting platform and a second mounting platform, a shock-absorbing assembly is provided between the first mounting platform and the second mounting platform, and an adjustment assembly for adjusting the elastic force of the shock-absorbing assembly is provided on the first mounting platform; the adjustment assembly includes a pull rope and a reel, the reel is rotatably connected to the first mounting platform, and the reel is connected to a drive assembly and other components.

[0003] When the above scheme is in use, the surveying and mapping camera can be kept stable by designing a shock-absorbing component. However, since the above scheme is connected to the drone through bolts, the vibration generated during the flight of the drone can easily cause the bolts to loosen, affecting the stability of the shock-absorbing structure, thereby affecting the use effect of the shock-absorbing structure. In addition, the camera mounting platform in the above scheme is fixed in size and cannot be adjusted according to the size of the camera. As a result, when a small-sized camera is fixed on the camera mounting platform, the camera mounting platform is subject to greater resistance, affecting the use of the surveying and mapping drone. Based on this, the present application proposes a shock-absorbing structure for a surveying and mapping drone. Utility Model Content

[0004] The utility model provides a shock-absorbing structure for a surveying and mapping UAV, which solves the problem that when the shock-absorbing structure proposed in the above background technology is connected by bolts, the vibration generated during the flight of the UAV is easy to cause the bolts to loosen, affecting the stability of the shock-absorbing structure, thereby affecting the use effect of the shock-absorbing structure, and the size of the camera mounting platform is fixed and cannot be adjusted according to the size of the camera, resulting in a large resistance on the camera mounting platform when a small-sized camera is fixed on the camera mounting platform, thereby affecting the use of the surveying and mapping UAV.

[0005] The utility model provides the following technical solutions: a shock-absorbing structure for a surveying and mapping unmanned aerial vehicle, comprising a fixed plate, the fixed plate is connected to the surveying and mapping unmanned aerial vehicle through bolts, the bottom of the fixed plate is movably connected to a limit tube, the limit tube is adapted to the nut of the bolt, the fixed plate is connected to a fixed structure for fixing a surveying and mapping instrument through a connection shock-absorbing structure; the connection shock-absorbing structure comprises a reinforcing rod, the top end of the reinforcing rod is connected to an isolation sleeve 1 through a shock-absorbing pad, the isolation sleeve 1 is fixedly connected to the fixed plate, the bottom end of the reinforcing rod is connected to an isolation sleeve 2 through another shock-absorbing pad, and the bottom of the isolation sleeve 2 is connected to the fixed structure;

[0006] The fixing structure comprises a connecting sleeve movably connected to the bottom of the shock-absorbing structure, the connecting sleeve is movably connected with a double-headed ball screw in an inner cavity of the connecting sleeve, the outer rings of the two ends of the double-headed ball screw are threadedly connected to a movable plate, and the inner side of the movable plate is movably connected to a fixing plate; the fixing plate comprises an upper plate, a middle plate and a lower plate, the top of the upper plate is movably connected to the movable plate, the bottom of the upper plate and one end of the middle plate are both provided with threaded holes, the two sides of the other end of the middle plate and the two sides of the top of the lower plate are fixed with a connecting plate, the top of the connecting plate is threadedly connected with a fixing bolt, the fixing bolt comprises a screw portion adapted to the threaded hole and a nut portion movably connected to the screw portion, the nut portion is connected to the screw portion by a rectangular rod, the nut portion is evenly provided with positioning holes on a side of the nut portion close to the screw portion, and the outer ring of the top end of the connecting plate is evenly fixed with positioning rods adapted to the positioning holes.

[0007] Preferably, the outer ring of the fixed plate is evenly provided with movable grooves adapted to the limiting tubes and bolt holes adapted to the bolts, and the bolt holes are located in the middle of the inner cavity of the movable grooves.

[0008] Preferably, the limiting tube and the movable groove are both inverted convex structures, and the limiting tube is movably connected to the inner cavity of the movable groove.

[0009] Preferably, the fixed structure also includes a rotating motor 1 fixedly connected to the bottom of the connecting shock-absorbing structure, the end of the output shaft of the rotating motor 1 is fixedly connected to the middle of the top of the connecting sleeve, and the outer surface of the rotating motor 1 is wrapped with an isolation pad.

[0010] Preferably, a through groove is provided in the middle of the bottom end of the movable plate, an isolation ring is fixed on the inner wall of the through groove, a rotating shaft is fixed on the top end of the fixed plate, the rotating shaft is movably connected to the inner cavity of the isolation ring, and a rotating motor 2 is fixedly connected to the outer side of the movable plate, and the output shaft end of the rotating motor 2 is fixedly connected to the end of the rotating shaft.

[0011] Preferably, ventilation holes are evenly arranged on the fixing plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The shock-absorbing structure of the surveying and mapping UAV is connected by the setting of the shock-absorbing structure, the isolation ring and the fixing plate. The resilience of the shock-absorbing pad and the isolation ring can reduce vibration and reduce the mutual influence between the surveying and mapping instrument and the surveying and mapping UAV, so that the surveying and mapping instrument can remain stable during use and is convenient for surveying and mapping. The size of the fixing plate can be adjusted according to demand to reduce the wind resistance of the structure during use, and further improve the stability of the surveying and mapping UAV during flight.

[0014] 2. The shock-absorbing structure of the surveying and mapping UAV is provided with a limit tube, a fixing bolt and a positioning rod. The limit tube can limit the bolt to prevent the bolt from loosening, and the positioning rod can limit the fixing bolt to prevent the fixing bolt from loosening, so that the structure can remain stable during use, and the reliability of the connection between the structure and the surveying and mapping UAV is guaranteed, and the possibility of vibration of the structure due to loose fixation is reduced; through the setting of the fixed structure, the surveying and mapping range of the surveying and mapping instrument fixed on the fixed structure in the horizontal plane and the surveying and mapping range in the vertical plane can be changed, which is convenient for surveying and mapping; BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the structure of the utility model;

[0016] Figure 2 The utility model structure Figure 1 Schematic diagram on the left;

[0017] Figure 3 The utility model structure Figure 1 Bottom schematic diagram;

[0018] Figure 4 This is a schematic diagram of the fixed structure of the utility model;

[0019] Figure 5 This is an exploded schematic diagram of the structural fixing plate of the utility model;

[0020] Figure 6 This is a cross-sectional schematic diagram of the structural connection shock-absorbing structure of the utility model;

[0021] Figure 7 This is a schematic diagram of the connection between the structure of the utility model and a surveying and mapping UAV.

[0022] In the figure: 1. fixed plate; 2. bolt; 3. isolation sleeve 1; 4. double-ended ball screw; 6. upper plate; 7. middle plate; 9. lower plate; 10. rotating motor 2; 11. isolation sleeve 2; 12. movable plate; 13. rotating shaft; 14. isolation ring; 15. limiting tube; 16. rotating motor 1; 17. connecting sleeve; 18. threaded hole; 19. connecting plate; 20. positioning rod; 22. nut part; 23. rectangular rod; 24. screw part; 25. movable groove; 26. shock-absorbing pad; 27. reinforcing rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 7 The utility model provides a shock absorbing structure for a surveying and mapping UAV, including a fixed plate 1. The outer ring of the fixed plate 1 is evenly provided with bolt holes and movable grooves 25. The number of the bolt holes is the same as the number of the movable grooves 25. The bolt holes are located in the inner cavity of the movable grooves 25. The inner cavity of the bolt holes is threadedly connected with bolts 2. When the structure is in use, the fixed plate 1 is connected to the surveying and mapping UAV in the prior art through the bolts 2. The working principle of the surveying and mapping UAV is the prior art and will not be elaborated here.

[0025] The inner cavity of the movable groove 25 is movably connected with the limiting tube 15, and both the limiting tube 15 and the movable groove 25 are inverted convex structures. Such a configuration can prevent the limiting tube 15 from being separated from the movable groove 25, and the inner cavity of the limiting tube 15 is adapted to the nut of the bolt 2. During the fixing process of the fixed plate 1, the limiting tube 15 is located in the inner cavity of the movable groove 25 under the pressure of external force. When the restriction on the limiting tube 15 is released, under the action of gravity, the bottom end of the limiting tube 15 can automatically move to the outside of the movable groove 25. After the fixed plate 1 is fixed by the bolt 2, the bottom end of the limiting tube 15 can be sleeved on the nut of the bolt 2, as shown in the attached manual Figure 3 As shown, at this time, the limiting tube 15 can limit the bolt 2 to prevent the bolt 2 from loosening due to vibration or other reasons during the flight of the surveying and mapping UAV, thereby improving the reliability of the fixation of the structure to the surveying and mapping UAV.

[0026] A connecting shock-absorbing structure is provided in the middle of the fixed plate 1, and the connecting shock-absorbing structure includes a reinforcing rod 27, and the reinforcing rod 27 is an I-shaped structure. The outer ring of the top of the reinforcing rod 27 is wrapped with a shock-absorbing pad 26, and the outer ring of the shock-absorbing pad 26 is wrapped with an isolation sleeve 1 3. The reinforcing rod 27 is fixedly connected to the fixed plate 1 through the isolation sleeve 1 3. Through the setting of the shock-absorbing pad 26, the rebound force of the shock-absorbing pad 26 can reduce the mutual influence between the fixed plate 1 and the reinforcing rod 27. The outer ring of the bottom of the reinforcing rod 27 is wrapped with another shock-absorbing pad 26, and the outer ring of the other shock-absorbing pad 26 is wrapped with an isolation sleeve 2 11. The bottom of the isolation sleeve 2 11 is connected to the fixed structure for fixing the surveying and mapping instrument. Through the setting of another shock-absorbing pad 26, the mutual influence between the fixed structure and the fixed plate 1 can be reduced. In some embodiments of the present application, the material of the shock-absorbing pad 26 is rubber.

[0027] By connecting the setting of the shock-absorbing structure, when the structure is in use, the shock-absorbing structure can reduce vibration, reduce the mutual influence between the fixed structure and the surveying and mapping UAV, and facilitate the use of the surveying and mapping instrument.

[0028] The fixed structure includes a connecting sleeve 17 movably connected to the bottom of the connecting shock-absorbing structure, and a rotating motor 16 is fixedly connected to the bottom of the connecting shock-absorbing structure. The end of the output shaft of the rotating motor 16 is fixedly connected to the middle of the top of the connecting sleeve 17 through a reducer, and the outer surface of the rotating motor 16 is wrapped with an isolation pad, and the isolation pad can be made of rubber. Through the setting of the rotating motor 16, the rotation of the rotating motor 16 can drive the connecting sleeve 17 fixedly connected thereto to rotate.

[0029] A double-headed ball screw 4 is movably connected in the inner cavity of the connecting sleeve 17. Under the action of external force, the double-headed ball screw 4 can rotate. The outer rings at both ends of the double-headed ball screw 4 are threadedly connected to a movable plate 12. When the double-headed ball screw 4 rotates, the movable plate 12 can move in the direction of the double-headed ball screw 4, so that the distance between the two movable plates 12 can be changed.

[0030] A through groove is provided in the middle of the bottom end of the movable plate 12, and an isolation ring 14 is fixed to the inner wall of the through groove. The isolation ring 14 can be made of rubber. A rotating shaft 13 is movably connected in the inner cavity of the isolation ring 14, and a fixed plate is fixed to the inner side of the rotating shaft 13. Through the setting of the rotating shaft 13, the fixed plate is movably connected to the bottom end of the movable plate 12. A rotating motor 2 10 is fixedly connected to the outer side of one movable plate 12, and the output shaft end of the rotating motor 2 10 is fixedly connected to the end of the rotating shaft through a reducer. Through the setting of the rotating motor 2 10, the rotation of the rotating motor 2 10 can drive the rotating shaft fixedly connected thereto to rotate, and the rotating rotating shaft can drive the fixed plate fixedly connected thereto to rotate. When the structure is in use, the surveying and mapping instrument is fixed on two fixed plates, and the rotation of the rotating motor 2 10 can drive the surveying and mapping instrument to rotate, thereby changing the surveying and mapping range of the surveying and mapping instrument.

[0031] It can be known from the above description that when the structure is in use, under the action of the rotating motor 2 10, the surveying range of the surveying instrument in the vertical plane can be changed, and under the action of the rotating motor 16, the surveying range of the surveying instrument in the horizontal plane can be changed, which is convenient for the operation of the surveying instrument. The above-mentioned rotating motor 2 10 and rotating motor 1 16 are both self-locking motors. In some embodiments of the present application, the models of both the rotating motor 2 10 and the rotating motor 1 16 are XD40WB-31YSF.

[0032] The fixing plate is evenly provided with ventilation holes, and the setting of the ventilation holes can reduce the wind resistance when the fixing plate is used, and the punching operation can be omitted when the surveying and mapping instrument is fixed, thereby improving the efficiency of fixing the surveying and mapping instrument.

[0033] The fixed plate includes an upper plate 6, a middle plate 7 and a lower plate 9. The top of the upper plate 6 is movably connected to the movable plate 12. The bottom end of the upper plate 6 and one end of the middle plate 7 are provided with threaded holes 18. Both sides of the other end of the middle plate 7 and both sides of the top of the lower plate 9 are fixed with connecting plates 19. The top of the connecting plate 19 is threadedly connected with a fixing bolt, which is adapted to the threaded hole 18. The fixing bolt can be used to fix the middle plate 7 with the upper plate 6 or the lower plate 9, and it is convenient to remove the middle plate 7 from the upper plate 6 or the lower plate 9.

[0034] The fixing bolt includes a screw portion 24 adapted to the threaded hole 18 and a nut portion 22 movably connected to the screw portion 24, the nut portion 22 and the screw portion 24 are connected by a rectangular rod 23, and in some embodiments of the present application, the rectangular rod 23 is fixedly connected to the screw portion 24, the rectangular rod 23 is L-shaped, and the middle part of the inner cavity of the nut portion 22 is provided with a groove adapted to the rectangular rod 23. Through the setting of the rectangular rod 23, the distance between the nut portion 22 and the screw portion 24 can be changed, and the rotation of the nut portion 22 can drive the screw portion 24 to rotate. Positioning holes are evenly provided on the side of the nut portion 22 close to the screw portion 24, and the outer ring of the top end of the connecting plate 19 is evenly fixed with positioning rods 20 adapted to the positioning holes. Through the setting of the positioning rod 20 and the positioning hole, the nut portion 22 can be fixed with the positioning rod 20 to avoid the rotation of the nut portion 22 when the structure is in use, thereby reducing the possibility of loosening of the fixing bolt.

[0035] From the above description, it can be seen that when the structure is in use, the distance between the two fixed plates and the size of the fixed plates can be adjusted according to needs, so that the structure can be adapted to surveying and mapping instruments of various sizes, thereby improving the adaptability of the structure and reducing the resistance of the structure when in use, thereby facilitating surveying and mapping.

[0036] In some embodiments of the present application, the fixing plate 1, the reinforcing rod 27, the isolation sleeve 1 3, the isolation sleeve 2 11 and the fixing plate are all made of carbon fiber, which reduces the weight of the structure when in use and facilitates the use of the structure.

[0037] The electrical components involved in this application are all prior art, and technicians in this field are familiar with their connection methods. Through these technicians, all the electrical components in this application are connected to their compatible power supplies through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence are described below. The electrical connection is completed in a sequential working order, and the detailed connection means are well known in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.

[0038] In summary: when the shock-absorbing structure of the mapping drone is used, the structure is connected to the mapping drone in the prior art by bolts 2, as shown in the attached manual. Figure 7As shown, during the screwing process of the bolt 2, the staff presses the limit tube 15 to prevent the limit tube 15 from limiting the bolt 2. After the bolt 2 is screwed, the limit tube 15 is released. Under the action of gravity, the limit tube 15 can be sleeved on the nut of the bolt 2 to limit the bolt 2, so as to prevent the bolt 2 from loosening due to vibration and other reasons when the surveying and mapping UAV is used, thereby improving the reliability of the connection between the structure and the surveying and mapping UAV. When the surveying and mapping instrument needs to be fixed, the user adjusts the distance between the two fixing plates and the number of the middle plates 7 on the two fixing plates according to the needs, places the surveying and mapping instrument on the two lower plates 9, and uses bolts and other tools to fix the surveying and mapping instrument and the fixing plate. In the process of the surveying and mapping UAV flying, the air vents on the fixing plate can reduce the wind resistance, which is convenient for the flight of the surveying and mapping UAV. The shock absorbing structure and the isolation ring can be connected for shock absorption, which reduces the mutual influence between the surveying and mapping instrument and the surveying and mapping UAV, and improves the reliability of the surveying and mapping instrument when in use.

[0039] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A shock absorbing structure for a surveying and mapping UAV, comprising a fixing plate (1), characterized in that: The fixing plate (1) is connected to the surveying and mapping unmanned aerial vehicle via bolts (2); the bottom of the fixing plate (1) is movably connected to a limit tube (15); the limit tube (15) is adapted to the nut of the bolt (2); the fixing plate (1) is connected to a fixing structure for fixing the surveying and mapping instrument via a connecting shock absorbing structure; the connecting shock absorbing structure comprises a reinforcing rod (27); the top end of the reinforcing rod (27) is connected to an isolation sleeve (3) via a shock absorbing pad (26); the isolation sleeve (3) is fixedly connected to the fixing plate (1); the bottom end of the reinforcing rod (27) is connected to an isolation sleeve (11) via another shock absorbing pad (26); the bottom of the isolation sleeve (11) is connected to the fixing structure; The fixed structure comprises a connecting sleeve (17) movably connected to the bottom of the damping structure, a double-headed ball screw (4) is movably connected in the inner cavity of the connecting sleeve (17), the outer rings at both ends of the double-headed ball screw (4) are threadedly connected to a movable plate (12), and the inner side of the movable plate (12) is movably connected to a fixed plate; the fixed plate comprises an upper plate (6), a middle plate (7) and a lower plate (9), the top end of the upper plate (6) is movably connected to the movable plate (12), the bottom end of the upper plate (6) and one end of the middle plate (7) are both provided with threaded holes (18), and the middle plate (7) Both sides of the other end and both sides of the top of the lower plate (9) are fixed with connecting plates (19), and the top of the connecting plate (19) is threadedly connected with a fixing bolt, and the fixing bolt includes a screw portion (24) adapted to the threaded hole (18) and a nut portion (22) movably connected to the screw portion (24), and the nut portion (22) is connected to the screw portion (24) through a rectangular rod (23), and positioning holes are uniformly provided on one side of the nut portion (22) close to the screw portion (24), and the outer ring of the top of the connecting plate (19) is uniformly fixed with a positioning rod (20) adapted to the positioning hole.

2. The shock absorbing structure of a surveying and mapping UAV according to claim 1 is characterized in that: The outer ring of the fixed plate (1) is evenly provided with movable grooves (25) adapted to the limiting tube (15) and bolt holes adapted to the bolts (2), and the bolt holes are located in the middle of the inner cavity of the movable grooves (25).

3. The shock absorbing structure of a surveying and mapping UAV according to claim 2 is characterized in that: The position-limiting tube (15) and the movable groove (25) are both inverted convex structures, and the position-limiting tube (15) is movably connected to the inner cavity of the movable groove (25).

4. The shock absorbing structure of a surveying and mapping UAV according to claim 1 is characterized in that: The fixed structure also includes a rotating motor (16) fixedly connected to the bottom of the connecting shock-absorbing structure, the end of the output shaft of the rotating motor (16) is fixedly connected to the middle of the top of the connecting sleeve (17), and the outer surface of the rotating motor (16) is wrapped with an isolation pad.

5. The shock absorbing structure of a surveying and mapping UAV according to claim 1 is characterized in that: A through groove is provided in the middle of the bottom end of the movable plate (12), an isolation ring (14) is fixed to the inner wall of the through groove, a rotating shaft (13) is fixed to the top end of the fixed plate, the rotating shaft (13) is movably connected to the inner cavity of the isolation ring (14), and a rotating motor 2 (10) is fixedly connected to the outer side of the movable plate (12), and the output shaft end of the rotating motor 2 (10) is fixedly connected to the end of the rotating shaft.

6. The shock absorbing structure of a surveying and mapping UAV according to claim 1 is characterized in that: The fixing plate is evenly provided with ventilation holes.

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