Camera shooting support for unmanned aerial vehicle to detect traffic flow

Abstract

The invention discloses a camera shooting support for an unmanned aerial vehicle to detect traffic flow, and relates to the technical field of unmanned aerial vehicle detection, the camera shooting support comprises a support main body, mounting grooves, limiting plates and movable plates, first limiting shafts are movably mounted in the multiple groups of mounting grooves, and bidirectional threaded grooves are formed in the outer walls of the multiple groups of first limiting shafts; worm wheels are installed at the center ends of the multiple sets of first limiting shafts, shaft seats are arranged at one ends of the multiple sets of limiting plates, first movable shafts are movably installed in the multiple sets of shaft seats, and fixing plates are installed on the outer walls of the multiple sets of first movable shafts. By arranging the support body, the limiting plates and the fixing plates, the camera is installed in the support body, the support body protects the camera, the situation that the outer end of the camera is damaged due to collision of foreign objects is avoided, one ends of the multiple sets of fixing plates are clamped and fixed to the unmanned aerial vehicle support, and installation of the camera and the unmanned aerial vehicle is completed; and the convenience of mounting and dismounting the camera is improved.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicle detection, and in particular to a camera bracket used for unmanned aerial vehicle detection of vehicle flow. Background Art

[0002] A drone is an aircraft that does not require direct control by a human pilot and can fly autonomously or be controlled by a remote control. The application range of drones is very wide, covering military, commerce, scientific research, agriculture, environmental monitoring, express delivery and many other fields.

[0003] Using drones to detect traffic flow is an emerging traffic monitoring method that can collect traffic data efficiently and flexibly. It is especially suitable for areas with dense traffic or where it is difficult to deploy traditional monitoring equipment. Compared with traditional ground cameras or sensing equipment, the advantages of drones in traffic flow monitoring are mainly reflected in flexibility, real-time and coverage. Drones are equipped with high-definition cameras, infrared sensors or lidar and other equipment to collect air or high-altitude traffic data in real time, and record information such as the number, speed, and direction of travel of vehicles.

[0004] In the prior art, a camera bracket for detecting traffic flow by a drone is installed at the bottom of the drone, and the camera is installed on the bracket to achieve assembly, thereby ensuring that the drone can achieve aerial survey. However, the camera is installed on the bracket structure. In order to ensure the safety of the camera when the drone is flying and to prevent the camera from falling, the camera is fixed and installed using multiple sets of screws and other fixings, which makes the camera inconvenient to install and inconvenient to disassemble, making it inconvenient to use. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a camera bracket for unmanned aerial vehicle to detect vehicle flow, so as to solve the technical problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a camera bracket for detecting vehicle flow by a drone, comprising a bracket body, a mounting slot, a limit plate and a movable plate, wherein a plurality of groups of mounting slots are provided at the bottom end of the bracket body, and the limit plates are symmetrically installed inside the plurality of groups of mounting slots, and a movable plate is movably installed on one side of the bracket body;

[0007] A first limiting shaft is movably installed inside the multiple groups of installation grooves, a bidirectional thread groove is opened on the outer wall of the multiple groups of the first limiting shafts, and the outer walls of the multiple groups of the first limiting shafts are respectively threadedly connected with the inner walls of the multiple groups of limiting plates, a worm gear is installed at the center end of the multiple groups of the first limiting shafts, one end of the multiple groups of the limiting plates is provided with a shaft seat, a first movable shaft is movably installed inside the multiple groups of the shaft seats, and a damping shaft is provided at one end of the multiple groups of the first movable shafts extending into the inner wall of the shaft seat, a fixing plate is installed on the outer wall of the multiple groups of the first movable shafts, and the cross-section of the multiple groups of the fixing plates is "J" shaped;

[0008] A worm is movably installed inside the bracket body, and the worm is meshed and connected with multiple sets of worm wheels. The worm extends to one end of the outer wall of the bracket body and is installed with a first torsion block, and the other end of the worm is provided with a damping shaft.

[0009] By adopting the above technical solution, the problem of convenience in camera installation is solved. The camera is installed inside the bracket body. When the drone is in flight, the bracket body protects the camera to prevent the outer end of the camera from being damaged by collision with foreign objects. The first torsion block is rotated to drive the multiple groups of limit plates to move into the installation groove, thereby driving the multiple groups of fixing plates to move toward the bracket body, so that one end of the multiple groups of fixing plates are respectively engaged and fixed with the drone bracket, completing the installation of the camera and the drone, and improving the convenience of camera installation and disassembly.

[0010] The present invention is further configured such that a second movable shaft is movably installed inside the bracket body, the second movable shaft extends to an outer wall of the bracket body at one end where a second torsion block is installed, and a movable bevel gear is installed at the other end of the second movable shaft.

[0011] Preferably, the second torsion block is rotated to drive the second movable shaft to rotate, thereby driving the movable bevel gear to rotate.

[0012] The present invention is further configured such that a plurality of groups of second limit shafts are movably installed inside the bracket body, and the plurality of groups of second limit shafts are respectively connected by synchronous belts, a limit bevel gear is installed at one end of one group of limit shafts, and the limit bevel gear is meshedly connected with the movable bevel gear.

[0013] Preferably, the movable bevel gear rotates to drive the limiting bevel gear to rotate, thereby driving a group of second limiting shafts to rotate, and multiple groups of second limiting shafts are connected by synchronous belts respectively, so that the multiple groups of second limiting shafts rotate synchronously.

[0014] The present invention is further configured such that a plurality of movable blocks are movably installed inside the bracket body, and the inner walls of the plurality of movable blocks are respectively threadedly connected to the outer walls of the plurality of second limit shafts, a spring is installed at one end of the plurality of movable blocks, and one end of the plurality of springs is connected to the inner wall of the bracket body, and the other ends of the plurality of movable blocks are movably connected to the inner wall of the movable plate, and the cross-section of the movable plate is "L" shaped.

[0015] Preferably, multiple groups of second limit shafts rotate synchronously, and the outer walls of the multiple groups of second limit shafts are respectively threadedly connected to the inner walls of the multiple groups of movable blocks, so that the multiple groups of movable blocks are displaced, and the multiple groups of movable blocks move into the inner wall of the movable plate to limit and fix the movable plate, and the multiple groups of springs generate pressure on the multiple groups of movable blocks respectively.

[0016] The present invention is further configured as follows: two groups of ventilation grooves are symmetrically opened on the upper end of the bracket body, and filter plates are provided at both ends of the two groups of ventilation grooves, drive shafts are movably installed inside the two groups of ventilation grooves, and multiple groups of wind wheels are installed on the outer walls of the two groups of drive shafts, two groups of first transmission shafts are installed inside the bracket body, and synchronous belts are provided between the two groups of first transmission shafts and the two groups of drive shafts respectively.

[0017] As a preferred embodiment, when the UAV is in flight, airflow passes through two sets of ventilation slots, thereby driving multiple sets of wind wheels to rotate, and then driving two sets of drive shafts to rotate. The two sets of drive shafts are respectively connected to the two sets of first transmission shafts through synchronous belts, so that the two sets of first transmission shafts rotate.

[0018] The present invention is further configured such that the central ends of the two groups of the first transmission shafts are each provided with a one-way bearing, one end of the two groups of the first transmission shafts is each installed with a first transmission bevel gear, two groups of first connecting shafts are movably installed inside the bracket body, one end of the two groups of the first connecting shafts is each installed with a first connecting bevel gear, and the two groups of first connecting bevel gears are respectively meshed and connected with the two groups of first transmission bevel gears.

[0019] Preferably, two groups of first transmission shafts rotate. Due to the arrangement of two groups of one-way bearings, one group of first transmission shafts drives one group of first transmission bevel gears to rotate, while the other group of first transmission shafts does not drive the other group of first transmission bevel gears to rotate. Moreover, the change in the flight direction of the UAV causes one group of first transmission bevel gears to not rotate, while the other group of first transmission bevel gears rotates. The first transmission bevel gears rotate, and the first transmission bevel gears are meshed and connected with the first connecting bevel gears. The first connecting bevel gears rotate, thereby driving the first connecting shaft to rotate.

[0020] The present invention is further configured such that a third movable shaft is movably installed inside the bracket body, and the third movable shaft is respectively connected to the two groups of first linkage shafts through synchronous belts.

[0021] Preferably, one group of the first linkage shafts rotates, driving the third movable shaft to rotate.

[0022] The present invention is further configured as follows: adsorption grooves are symmetrically opened at the upper end of the bracket body, and filter plates are provided at the upper ends of the two groups of adsorption grooves; two groups of air outlet grooves are symmetrically opened at the upper end of the bracket body, and the two groups of air outlet grooves are respectively connected to the two groups of adsorption grooves, and the two groups of air outlet grooves extend to one end of the outer wall of the bracket body and are provided with filter plates; installation shafts are movably installed inside the two groups of adsorption grooves, and fans are provided on the outer walls of the two groups of installation shafts; and the two groups of installation shafts are connected to the third movable shaft by a synchronous belt.

[0023] Preferably, the third movable shaft rotates, and the third movable shaft is respectively connected to the two sets of mounting shafts through synchronous belts. The two sets of mounting shafts rotate, thereby driving the two sets of fans to rotate, so that airflow is generated inside the two sets of adsorption grooves, and the airflow is discharged from the two sets of air outlet grooves to the outer end of the bracket body. At the same time, negative pressure is generated at the upper ends of the two sets of adsorption grooves, and the two sets of adsorption grooves adsorb the bottom end of the drone, thereby improving the stability of the bracket body and the drone connection end when the drone is in flight.

[0024] The present invention is further configured such that a second transmission shaft is movably installed inside the bracket body, and a synchronous belt is provided between the second transmission shaft and a group of driving shafts to connect them, and a second transmission bevel gear is installed at one end of the second transmission shaft.

[0025] Preferably, when the two sets of drive shafts rotate, one set of drive shafts is connected to the second transmission shaft via a synchronous belt, so that the second transmission shaft rotates, thereby driving the second transmission bevel gear to rotate.

[0026] The present invention is further configured as follows: a reserved hole is provided at one end of the bracket body, and a lens is installed at one end of the reserved hole; a slide groove is symmetrically provided at one end of the bracket body; two groups of second connecting shafts are movably installed on the inner walls of the slide grooves, and a synchronous belt is provided between the two groups of second connecting shafts to connect them; a second connecting bevel gear is installed at one end of one group of the second connecting shafts, and the second connecting bevel gear is meshed and connected with the second transmission bevel gear; a scraper is movably installed at one end of the bracket body, and the scraper is inclined at both sides; reciprocating thread grooves are provided on the outer walls of the two groups of the second connecting shafts, and the outer walls of the two groups of the second connecting shafts are respectively threadedly connected to the inner walls at both ends of the scraper; the scraper is movably connected to the outer wall of the lens at the end of the reserved hole.

[0027] Preferably, the second transmission bevel gear rotates, and the second transmission bevel gear is meshed with the second connecting bevel gear, so the second connecting bevel gear rotates, thereby driving a group of second connecting shafts to rotate. A synchronous belt is provided between the two groups of second connecting shafts, so the two groups of second connecting shafts rotate synchronously, and the outer walls of the two groups of second connecting shafts are respectively threadedly connected to the inner walls at both ends of the scraper, and the scraper is displaced to clean the lens at the reserved hole end.

[0028] In summary, the present invention mainly has the following beneficial effects:

[0029] 1. The present invention solves the problem of convenient camera installation by providing a bracket body, a limit plate and a fixing plate. The camera is installed into the bracket body. When the drone is in flight, the bracket body protects the camera to prevent the outer end of the camera from being damaged by collision with foreign objects. The first torsion block is rotated to drive the multiple groups of limit plates to move into the installation groove, thereby driving the multiple groups of fixing plates to move toward the bracket body, so that one end of the multiple groups of fixing plates are respectively engaged and fixed with the drone bracket, completing the installation of the camera and the drone, and improving the convenience of camera installation and disassembly.

[0030] 2. The present invention is provided with ventilation slots, adsorption slots and air outlet slots. When the UAV is flying, airflow passes through two sets of ventilation slots, thereby driving multiple sets of wind wheels to rotate, and then driving two sets of drive shafts to rotate. The two sets of drive shafts are respectively connected to the two sets of first transmission shafts through synchronous belts, so the two sets of first transmission shafts rotate. Due to the provision of two sets of one-way bearings, one set of the second transmission shaft drives the installation shaft to rotate, thereby driving the two sets of fans to rotate, so that airflow is generated inside the two sets of adsorption slots, and the airflow is discharged from the two sets of air outlet slots to the outer end of the bracket body. At the same time, negative pressure is generated at the upper ends of the two sets of adsorption slots, and the two sets of adsorption slots adsorb the bottom end of the UAV, thereby improving the stability of the bracket body and the connecting end of the UAV when the UAV is in flight.

[0031] 3. The present invention is provided with a scraper and a reserved hole. When the UAV is in flight, the lens at the end of the reserved hole protects the camera lens, preventing dust or flying insects from directly adhering to the outer wall of the camera lens. A set of driving shafts rotates to drive two sets of second connecting shafts to rotate. The outer walls of the two sets of second connecting shafts are respectively threadedly connected to the inner walls of the scraper at both ends. The scraper moves and cleans the lens at the end of the reserved hole, preventing the lens from being attached to dust or flying insects in flight and affecting the camera shooting effect, thereby further improving the practicality of the camera bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the connection between the bracket body and the drone in the present invention;

[0033] Figure 2 It is a schematic diagram of the main body of the bracket in the present invention;

[0034] Figure 3 Schematic diagram of the first twist block and the second twist block in the present invention;

[0035] Figure 4 It is a schematic diagram of the internal structure of the support body in the present invention;

[0036] Figure 5 for Figure 4 A in the enlarged view;

[0037] Figure 6It is a schematic diagram of the limiting plate in the present invention;

[0038] Figure 7 It is an exploded view of the limiting plate in the present invention;

[0039] Figure 8 It is a schematic diagram of the movable plate in the present invention;

[0040] Fig. 9 for Figure 8 The enlarged view of point B in the figure;

[0041] Fig.10 It is a schematic diagram of the third movable axis in the present invention;

[0042] Fig.11 It is a schematic diagram of the scraper in the present invention.

[0043] Description of reference numerals:

[0044] 1. Bracket body; 2. Mounting slot; 3. Limiting plate; 4. Shaft seat; 5. First movable shaft; 6. Fixed plate; 7. First limiting shaft; 8. Worm gear; 9. Worm; 10. First torsion block; 11. Movable plate; 12. Second limiting shaft; 13. Limiting bevel gear; 14. Spring; 15. Second movable shaft; 16. Movable bevel gear; 17. Second torsion block; 18. Ventilation slot; 19. Drive shaft; 20. First transmission shaft; 21. One-way bearing; 22. First transmission bevel gear; 23. First linkage shaft; 24. First linkage bevel gear; 25. Adsorption slot; 26. Mounting shaft; 27. Air outlet slot; 28. Third movable shaft; 29. ​​Reserved hole; 30. Slide slot; 31. Second linkage shaft; 32. Scraper; 33. Second linkage bevel gear; 34. Second transmission shaft; 35. Second transmission bevel gear; 36. Movable block. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] The following describes an embodiment of the present invention based on its overall structure.

[0047] A camera bracket for drones to detect traffic flow, see Figure 1 - Fig.11 , including a bracket body 1, a mounting groove 2, a limit plate 3 and a movable plate 11, a plurality of groups of mounting grooves 2 are provided at the bottom of the bracket body 1, and the limit plates 3 are symmetrically installed inside the plurality of groups of mounting grooves 2, and a movable plate 11 is movably installed on one side of the bracket body 1;

[0048] A first limiting shaft 7 is movably installed inside the multiple groups of installation grooves 2, and a bidirectional thread groove is opened on the outer wall of the multiple groups of first limiting shafts 7, and the outer walls of the multiple groups of first limiting shafts 7 are respectively threadedly connected with the inner walls of the multiple groups of limiting plates 3. The multiple groups of first limiting shafts 7 rotate to drive the multiple groups of limiting plates 3 to move, and a worm gear 8 is installed at the center end of the multiple groups of first limiting shafts 7. An axle seat 4 is provided at one end of the multiple groups of limiting plates 3. A first movable shaft 5 is movably installed inside the multiple groups of axle seats 4, and a damping shaft is provided at one end of the multiple groups of first movable shafts 5 extending into the inner wall of the axle seat 4, and a fixing plate 6 is installed on the outer wall of the multiple groups of first movable shafts 5, and the cross-section of the multiple groups of fixing plates 6 is "J" shaped;

[0049] A worm 9 is movably installed inside the bracket body 1, and the worm 9 is meshingly connected with multiple groups of worm wheels 8. The worm 9 extends to one end of the outer wall of the bracket body 1 and is installed with a first torsion block 10, and a damping shaft is provided at the other end of the worm 9. The first torsion block 10 rotates, driving the worm 9 to rotate, thereby driving the multiple groups of worm wheels 8 to rotate, and then driving the multiple groups of first limit shafts 7 to rotate.

[0050] See also Figure 2 - Fig. 9 A second movable shaft 15 is movably installed inside the bracket body 1. The second movable shaft 15 extends to the outer wall of the bracket body 1 and a second torsion block 17 is installed at one end. A movable bevel gear 16 is installed at the other end of the second movable shaft 15. Rotating the second torsion block 17 drives the second movable shaft 15 to rotate, thereby driving the movable bevel gear 16 to rotate.

[0051] See also Figure 2 - Fig. 9 A plurality of second limit shafts 12 are movably installed inside the bracket body 1, and the plurality of second limit shafts 12 are respectively connected by synchronous belts. A limit bevel gear 13 is installed at one end of a group of limit shafts 12, and the limit bevel gear 13 is meshed and connected with a movable bevel gear 16. The movable bevel gear 16 rotates, driving the limit bevel gear 13 to rotate, thereby driving a group of second limit shafts 12 to rotate, and the plurality of second limit shafts 12 are respectively connected by synchronous belts, so the plurality of second limit shafts 12 rotate synchronously.

[0052] See also Figure 2 - Fig. 9A plurality of movable blocks 36 are movably installed inside the bracket body 1, and the inner walls of the plurality of movable blocks 36 are respectively threadedly connected with the outer walls of the plurality of second limiting shafts 12, one end of the plurality of movable blocks 36 is installed with a spring 14, and one end of the plurality of springs 14 is connected with the inner wall of the bracket body 1, the other ends of the plurality of movable blocks 36 are movably connected with the inner wall of the movable plate 11, and the cross-section of the movable plate 11 is "L"-shaped, the plurality of second limiting shafts 12 rotate synchronously, and the outer walls of the plurality of second limiting shafts 12 are respectively threadedly connected with the inner walls of the plurality of movable blocks 36, so the plurality of movable blocks 36 are displaced, and the plurality of movable blocks 36 move into the inner wall of the movable plate 11 to limit and fix the movable plate 11, and the plurality of springs generate pressure on the plurality of movable blocks 36 respectively.

[0053] See also Figure 2 - Fig.10 Two groups of ventilation slots 18 are symmetrically provided at the upper end of the bracket body 1, and filter plates are provided at both ends of the two groups of ventilation slots 18. Drive shafts 10 are movably installed inside the two groups of ventilation slots 18, and multiple groups of wind wheels are installed on the outer walls of the two groups of drive shafts 10. Two groups of first transmission shafts 20 are installed inside the bracket body 1, and the two groups of first transmission shafts 20 are respectively connected to the two groups of drive shafts 10 with synchronous belts. When the UAV is in flight, the airflow passes through the two groups of ventilation slots 18, thereby driving the multiple groups of wind wheels to rotate, and then driving the two groups of drive shafts 19 to rotate. The two groups of drive shafts 19 are respectively connected to the two groups of first transmission shafts 20 through synchronous belts, so the two groups of first transmission shafts 20 rotate.

[0054] See also Figure 2 - Fig.10 , the center ends of the two groups of first transmission shafts 20 are both provided with one-way bearings 21, and the first transmission bevel gears 22 are installed at one ends of the two groups of first transmission shafts 20. Two groups of first linkage shafts 23 are movably installed inside the bracket body 1, and the first linkage bevel gears 24 are installed at one ends of the two groups of first linkage shafts 23. The two groups of first linkage bevel gears 24 are respectively meshed and connected with the two groups of first transmission bevel gears 22. The two groups of first transmission shafts 20 rotate. Due to the arrangement of the two groups of one-way bearings 21, one group of first transmission shafts 20 drives one group of first transmission bevel gears 22 to rotate, while the other group of first transmission shafts 20 does not drive the other group of first transmission bevel gears 22 to rotate. Moreover, the change in the flight direction of the drone causes one group of first transmission bevel gears 22 to not rotate, while the other group of first transmission bevel gears 22 rotates. The first transmission bevel gears 22 rotate, and the first transmission bevel gears 22 are meshed and connected with the first linkage bevel gears 24. The first linkage bevel gears 24 rotate, thereby driving the first linkage shaft 23 to rotate.

[0055] See also Figure 2 - Fig.10A third movable shaft 28 is movably installed inside the bracket body 1, and the third movable shaft 28 is respectively connected to two groups of first linkage shafts 23 through synchronous belts. When one group of first linkage shafts 23 rotates, the third movable shaft 28 is driven to rotate.

[0056] See also Figure 1 - Fig.10 The upper end of the bracket body 1 is symmetrically provided with adsorption grooves 25, and the upper ends of the two groups of adsorption grooves 25 are provided with filter plates. The upper end of the bracket body 1 is symmetrically provided with two groups of air outlet grooves 27, and the two groups of air outlet grooves 27 are respectively connected to the two groups of adsorption grooves 25. The two groups of air outlet grooves 27 extend to one end of the outer wall of the bracket body 1 and are provided with filter plates. The two groups of adsorption grooves 25 are movably installed with mounting shafts 26, and the outer walls of the two groups of mounting shafts 26 are provided with fans. The two groups of mounting shafts 26 are connected to the third movable shaft 28 by synchronous belts. , the third movable shaft 28 rotates, and the third movable shaft 28 is respectively connected to the two sets of installation shafts 26 through synchronous belts. The two sets of installation shafts 26 rotate, thereby driving the two sets of fans to rotate, so that airflow is generated inside the two sets of adsorption grooves 25, and the airflow is discharged from the two sets of air outlet grooves 27 to the outer end of the bracket body 1. At the same time, negative pressure is generated at the upper ends of the two sets of adsorption grooves 25. The two sets of adsorption grooves 25 adsorb the bottom end of the drone, thereby improving the stability of the bracket body 1 and the connection end of the drone when the drone is in flight.

[0057] See also Figure 2 - Fig.11 A second transmission shaft 34 is movably installed inside the bracket body 1, and a synchronous belt is provided between the second transmission shaft 34 and a group of drive shafts 19, and a second transmission bevel gear 35 is installed at one end of the second transmission shaft 34. When the two groups of drive shafts 19 rotate, one group of drive shafts 19 is connected to the second transmission shaft 34 through a synchronous belt, so the second transmission shaft 34 rotates, thereby driving the second transmission bevel gear 35 to rotate.

[0058] See also Figure 2 - Fig.11A reserved hole 29 is provided at one end of the bracket body 1, and a lens is installed at one end of the reserved hole 29. A slide groove 30 is symmetrically provided at one end of the bracket body 1. The inner walls of the two sets of slide grooves 30 are movably provided with second linkage shafts 31, and a synchronous belt is provided between the two sets of second linkage shafts 31 to connect them. A second linkage bevel gear 33 is installed at one end of one set of second linkage shafts 31, and the second linkage bevel gear 33 is meshed and connected with the second transmission bevel gear 35. A scraper 32 is movably provided at one end of the bracket body 1, and both sides of the scraper 32 are inclined. Reciprocating thread grooves are provided on the outer walls of the two sets of second linkage shafts 31, and the two sets of second linkage shafts 31 are provided with a plurality of reciprocating thread grooves. The outer walls are respectively threadedly connected to the inner walls at both ends of the scraper 32, the scraper 32 is movably connected to the outer wall of the lens at the end of the reserved hole 29, the second transmission bevel gear 35 rotates, and the second transmission bevel gear 35 is meshed and connected with the second linkage bevel gear 33, so the second linkage bevel gear 33 rotates, thereby driving a group of second linkage shafts 31 to rotate, and a synchronous belt is provided between the two groups of second linkage shafts 31 to be connected, so the two groups of second linkage shafts 31 rotate synchronously, the outer walls of the two groups of second linkage shafts 31 are respectively threadedly connected to the inner walls at both ends of the scraper 32, the scraper 32 is displaced, and the scraper 32 cleans the lens at the end of the reserved hole 29.

[0059] The working principle of the present invention is as follows: when the staff uses the camera bracket, the staff first rotates the second torsion block 17 to drive the second movable shaft 15 to rotate, thereby driving the movable bevel gear 16 to rotate, and the movable bevel gear 16 is meshed and connected with the limiting bevel gear 13, so the limiting bevel gear 13 rotates, thereby driving a group of second limiting shafts 12 to rotate, and multiple groups of second limiting shafts 12 are respectively connected by synchronous belts, so multiple groups of second limiting shafts 12 rotate synchronously, and the outer walls of multiple groups of second limiting shafts 12 are respectively threadedly connected with the inner walls of multiple groups of movable blocks 36, so multiple groups of movable blocks 36 are displaced, and multiple groups of movable blocks 36 are separated from the inner wall of the movable plate 11, and the limiting fixation of the movable plate 11 is released;

[0060] When the movable plate 11 is released, the staff pulls the movable plate 11 to move, thereby opening the bracket body 1, and then the staff puts the camera into the bracket body 1, and points the camera head toward the reserved hole 29, and then the staff closes the movable plate 11 and rotates the second twist block 17, so that the multiple groups of movable blocks 36 move into the inner wall of the movable plate 11, and the movable plate 11 is limited and fixed, and the multiple groups of springs respectively generate pressure on the multiple groups of movable blocks 36, further improving the stability of the multiple groups of movable blocks 36;

[0061] After the camera is installed, the staff will flip the multiple sets of fixing plates 6 upward with the multiple sets of first movable axes 5 as the center of the circle, so that the multiple sets of fixing plates 6 are at a 90-degree angle with the connecting ends of the multiple sets of limit plates 3, so as to avoid the multiple sets of fixing plates 6 and the drone chassis from being blocked when the bracket body 1 is installed. The staff will attach the bracket body 1 to the outer wall of the bottom end of the drone, and then the staff will rotate the first twist block 10 clockwise and counterclockwise;

[0062] The staff first rotates the first torsion block 10 clockwise, and the first torsion block 10 drives the worm 9 to rotate. The worm 9 is meshed and connected with the multiple groups of worm gears 8, so the multiple groups of worm gears 8 rotate, thereby driving the multiple groups of first limit shafts 7 to rotate. The outer walls of the multiple groups of first limit shafts 7 are all threadedly connected with the inner walls of the multiple groups of limit plates 3, so the multiple groups of limit plates 3 are displaced toward the outer ends of the installation grooves 2. After the multiple groups of limit plates 3 move, the staff rotates the multiple groups of fixed plates 6 with the first movable shaft 5 as the center of the circle, so that the multiple groups of fixed plates 6 and the multiple groups of limit plates 3 are in a horizontal state, and one end of the multiple groups of limit plates 3 extends to the outer end of the UAV chassis;

[0063] Then the staff member rotates the first twist block 10 counterclockwise to drive the multiple groups of limit plates 3 to move into the installation groove 2, thereby driving the multiple groups of fixing plates 6 to move toward the bracket body 1, so that one end of the multiple groups of fixing plates 6 is respectively engaged and fixed with the drone bracket, and the staff member stops rotating the first twist block 10 to complete the installation of the bracket body 1;

[0064] After the bracket body 1 is installed, the staff starts the drone, and the drone takes off with the bracket body 1. When the drone flies forward, the airflow passes through the two sets of ventilation slots 18, thereby driving the multiple sets of wind wheels to rotate, and then driving the two sets of drive shafts 19 to rotate. The two sets of drive shafts 19 are respectively connected to the two sets of first transmission shafts 20 through synchronous belts, so the two sets of first transmission shafts 20 rotate. Due to the setting of the two sets of one-way bearings 21, one set of first transmission shafts 20 drives one set of first transmission bevel gears 22 to rotate, while the other set of first transmission shafts 20 does not drive the other set of first transmission bevel gears 22 to rotate;

[0065] When a group of first transmission bevel gears 22 rotates, the first transmission bevel gears 22 are meshed and connected with the first linkage bevel gears 24, so a group of first linkage bevel gears 24 rotates, thereby driving a group of first linkage shafts 23 to rotate, and the two groups of first linkage shafts 23 are connected to the third movable shaft 28 through a synchronous belt, so the third movable shaft 28 rotates, and the third movable shaft 28 is respectively connected to the two groups of installation shafts 26 through a synchronous belt, and the two groups of installation shafts 26 rotate, thereby driving the two groups of fans to rotate, so that airflow is generated inside the two groups of adsorption grooves 25, and the airflow is discharged from the two groups of air outlet grooves 27 to the outer end of the bracket body 1, and at the same time, negative pressure is generated at the upper ends of the two groups of adsorption grooves 25, and the two groups of adsorption grooves 25 adsorb the bottom end of the drone, thereby improving the stability of the bracket body 1 and the connection end of the drone in the flight state of the drone;

[0066] When the drone flies backward, the other set of first transmission shafts 20 drives the two sets of mounting shafts 26 to rotate, so that negative pressure is generated at the upper ends of the two sets of adsorption grooves 25, and the two sets of adsorption grooves 25 adsorb the bottom of the drone, further improving the stability of the bracket body 1 and the drone connection end when the drone is in flight;

[0067] When the two groups of driving shafts 19 rotate, one group of driving shafts 19 is connected to the second transmission shaft 34 through a synchronous belt, so the second transmission shaft 34 rotates, thereby driving the second transmission bevel gear 35 to rotate, and the second transmission bevel gear 35 is meshed and connected with the second linkage bevel gear 33, so the second linkage bevel gear 33 rotates, thereby driving a group of second linkage shafts 31 to rotate, and a synchronous belt is provided between the two groups of second linkage shafts 31 to be connected, so the two groups of second linkage shafts 31 rotate synchronously, and the outer walls of the two groups of second linkage shafts 31 are respectively threadedly connected to the inner walls of the scraper 32 at both ends, and the scraper 32 is displaced, and the scraper 32 cleans the lens at the end of the reserved hole 29 to prevent the lens from being contaminated with dust or flying insects in the flying state and affecting the camera shooting effect, thereby further improving the practicality of the camera bracket.

[0068] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A camera bracket for detecting vehicle flow by an unmanned aerial vehicle, comprising a bracket body (1), a mounting slot (2), a limit plate (3) and a movable plate (11), characterized in that: The bottom end of the bracket body (1) is provided with a plurality of installation grooves (2), and the plurality of installation grooves (2) are symmetrically installed with limit plates (3) inside, and a movable plate (11) is movably installed on one side of the bracket body (1); A first limiting shaft (7) is movably installed inside each of the plurality of installation grooves (2), a bidirectional thread groove is provided on the outer wall of each of the plurality of first limiting shafts (7), and the outer walls of each of the plurality of first limiting shafts (7) are respectively threadedly connected to the inner wall of each of the plurality of limiting plates (3), a worm gear (8) is installed at the center end of each of the plurality of first limiting shafts (7), an axle seat (4) is provided at one end of each of the plurality of limiting plates (3), a first movable shaft (5) is movably installed inside each of the plurality of axle seats (4), and a damping shaft is provided at one end of each of the plurality of first movable shafts (5) extending into the inner wall of the axle seat (4), a fixing plate (6) is installed on the outer wall of each of the plurality of first movable shafts (5), and the cross-section of each of the plurality of fixing plates (6) is "J" shaped; A worm (9) is movably installed inside the bracket body (1), and the worm (9) is meshingly connected with a plurality of worm gears (8). The worm (9) extends to one end of the outer wall of the bracket body (1) and is installed with a first torsion block (10), and a damping shaft is provided at the other end of the worm (9).

2. The camera bracket for detecting vehicle flow by using a drone according to claim 1, characterized in that: A second movable shaft (15) is movably mounted inside the bracket body (1); the second movable shaft (15) extends to an outer wall of the bracket body (1) and is mounted with a second torsion block (17) at one end; and a movable bevel gear (16) is mounted at the other end of the second movable shaft (15).

3. The camera bracket for detecting vehicle flow by using a drone according to claim 2, characterized in that: A plurality of sets of second limit shafts (12) are movably mounted inside the bracket body (1), and the plurality of sets of second limit shafts (12) are respectively connected by synchronous belts, and a limit bevel gear (13) is mounted on one end of one set of the limit shafts (12), and the limit bevel gear (13) is meshedly connected with the movable bevel gear (16).

4. The camera bracket for detecting vehicle flow by using a drone according to claim 3, characterized in that: A plurality of movable blocks (36) are movably installed inside the bracket body (1), and the inner walls of the plurality of movable blocks (36) are respectively threadedly connected to the outer walls of the plurality of second limit shafts (12). A spring (14) is installed at one end of the plurality of movable blocks (36), and one end of the plurality of springs (14) is connected to the inner wall of the bracket body (1). The other ends of the plurality of movable blocks (36) are movably connected to the inner wall of the movable plate (11), and the cross section of the movable plate (11) is "L"-shaped.

5. The camera bracket for detecting vehicle flow by using a drone according to claim 1, characterized in that: Two groups of ventilation slots (18) are symmetrically provided at the upper end of the support body (1), and filter plates are provided at both ends of the two groups of ventilation slots (18). Drive shafts (10) are movably installed inside the two groups of ventilation slots (18), and multiple groups of wind wheels are installed on the outer walls of the two groups of drive shafts (10). Two groups of first transmission shafts (20) are installed inside the support body (1), and synchronous belts are provided between the two groups of first transmission shafts (20) and the two groups of drive shafts (10), respectively.

6. The camera bracket for detecting vehicle flow by using a drone according to claim 5, characterized in that: The central ends of the two groups of the first transmission shafts (20) are both provided with one-way bearings (21), one ends of the two groups of the first transmission shafts (20) are both installed with first transmission bevel gears (22), two groups of first linkage shafts (23) are movably installed inside the bracket body (1), one ends of the two groups of the first linkage shafts (23) are both installed with first linkage bevel gears (24), and the two groups of first linkage bevel gears (24) are respectively meshed and connected with the two groups of first transmission bevel gears (22).

7. The camera bracket for detecting vehicle flow by using a drone according to claim 6, characterized in that: A third movable shaft (28) is movably installed inside the bracket body (1), and the third movable shaft (28) is respectively connected to the two groups of first linkage shafts (23) via synchronous belts.

8. The camera bracket for detecting vehicle flow by using a drone according to claim 7, characterized in that: The upper end of the support body (1) is symmetrically provided with adsorption grooves (25), and the upper ends of the two groups of adsorption grooves (25) are both provided with filter plates. The upper end of the support body (1) is symmetrically provided with two groups of air outlet grooves (27), and the two groups of air outlet grooves (27) are respectively connected to the two groups of adsorption grooves (25). The two groups of air outlet grooves (27) extend to one end of the outer wall of the support body (1) and are both provided with filter plates. The insides of the two groups of adsorption grooves (25) are both movably provided with mounting shafts (26), and the outer walls of the two groups of mounting shafts (26) are both provided with fans. The two groups of mounting shafts (26) are both connected to the third movable shaft (28) by synchronous belts.

9. The camera bracket for detecting vehicle flow by using a drone according to claim 5, characterized in that: A second transmission shaft (34) is movably mounted inside the bracket body (1), and a synchronous belt is provided between the second transmission shaft (34) and a set of drive shafts (19) to connect them, and a second transmission bevel gear (35) is mounted on one end of the second transmission shaft (34).

10. The camera bracket for detecting vehicle flow by using a drone according to claim 9, characterized in that: A reserved hole (29) is provided at one end of the bracket body (1), and a lens is installed at one end of the reserved hole (29). A slide groove (30) is symmetrically provided at one end of the bracket body (1). Second linkage shafts (31) are movably installed on the inner walls of two groups of the slide grooves (30), and a synchronous belt is provided between the two groups of second linkage shafts (31) to connect them. A second linkage bevel gear (33) is installed at one end of one group of the second linkage shafts (31), and the second linkage bevel gear (33) is meshedly connected with the second transmission bevel gear (35). A scraper (32) is movably installed at one end of the bracket body (1), and the scraper (32) is inclined at both sides. Reciprocating thread grooves are provided on the outer walls of the two groups of the second linkage shafts (31), and the outer walls of the two groups of the second linkage shafts (31) are respectively threadedly connected to the inner walls of the two ends of the scraper (32), and the scraper (32) is movably connected to the outer wall of the lens at the end of the reserved hole (29).

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