Throwing device applied to unmanned aerial vehicle

Abstract

The invention relates to the field of unmanned aerial vehicles, in particular to a throwing device applied to an unmanned aerial vehicle, which comprises the unmanned aerial vehicle, a first rope is mounted at the bottom of the unmanned aerial vehicle, a load early warning mechanism is mounted at the bottom end of the first rope, the load early warning mechanism detects the load when the unmanned aerial vehicle throws goods, and an adjusting mechanism is mounted at the bottom of the load early warning mechanism. Retracting and releasing mechanisms are installed on the left side and the right side of the bottom of the adjusting mechanism correspondingly, and the gravity center of lifted goods is adjusted through cooperation of the adjusting mechanism and the retracting and releasing mechanisms. And the load early warning mechanism comprises a gear box installed at the bottom end of the first rope, LED lamps are installed on the front side and the rear side of the gear box, the LED lamps are color-changing lamps, and the load borne by the unmanned aerial vehicle is judged through color changes. The cargo lifting gravity center and angle can be adjusted, the situation that the cargo falls off due to the unstable gravity center is prevented, the cargo throwing stability is improved, the load borne by the unmanned aerial vehicle is judged according to different light colors, the unmanned aerial vehicle is prevented from being damaged due to overload operation, and the unmanned aerial vehicle is protected.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a throwing device applied to unmanned aerial vehicles. Background Art

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices, or are fully or intermittently autonomously operated by onboard computers. UAVs are no longer limited to aerial photography, but are widely used in many areas such as cargo transportation and rescue.

[0003] When throwing cargo, find the center point of the drone, put the cargo on the traction rope, and then transport the cargo to the designated location through the drone. Because it is air transportation, the cargo has different shapes. When lifting the cargo, it is easy to cause the center of gravity of the cargo to be unstable, and the cargo will roll over. The cargo will fall from the high altitude, and the throwing stability is poor. Different types of drones have different load capacities. If overloaded, the drone is easily damaged. In summary, a drone throwing device with strong safety is provided. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a throwing device for use in a drone, so as to solve the problem in the above-mentioned background technology that the cargo lifting center cannot be adjusted and the drone overload detection cannot be performed.

[0005] To achieve the above-mentioned purpose, an embodiment of the present invention provides the following technical solution: a throwing device applied to a drone, comprising a drone, a first rope is installed at the bottom of the drone, a load warning mechanism is installed at the bottom of the first rope, the load when the drone throws the cargo is detected by the load warning mechanism, an adjustment mechanism is installed at the bottom of the load warning mechanism, and retraction and release mechanisms are installed on both the left and right sides of the bottom of the adjustment mechanism, and the center of gravity of the lifted cargo is adjusted by the adjustment mechanism and the retraction and release mechanism.

[0006] Preferably, the load warning mechanism includes a gear box installed at the bottom end of the first rope, and LED lights are installed on the front and rear sides of the gear box. The LED lights are color-changing lights, and the load size borne by the drone is judged by color changes. A rotatable gear is connected to the center of the inner cavity of the gear box through a pin shaft, and guide rails are installed on the left and right sides of the inner cavity of the gear box. A rack meshing with the gear is sleeved on the outer wall of the guide rail, and a second rope is installed at the bottom end of the rack on the left side. A warning component is vertically installed on the right end of the upper surface of the gear box, and the warning component is connected to the top of the rack on the right side; the force direction of the warning component is changed by transmission of the gear and the rack.

[0007] Preferably, the early warning component includes a piston cylinder installed at the right end of the upper surface of the gear box, a piston that can slide up and down is inserted into the inner cavity of the piston cylinder, and the bottom end of the piston is connected to the top of the rack on the right side, a disc is installed at the top of the outer wall of the piston cylinder, and the disc is hollow, a spring tube is installed on the top of the piston cylinder, the inner cavities of the piston cylinder and the spring tube are filled with hydraulic oil, the right end of the spring tube is connected to one end of the connecting rod through a pin shaft, a swing rod is connected to the center position of the disc through a pin shaft, the middle part of the swing rod is connected to the other end of the connecting rod through a pin shaft, a first contact is installed at the other end of the swing rod, and the first contact is electrically connected to the drone battery, a plurality of second contacts are installed along the circumferential direction of the inner wall of the disc, and the second contacts are electrically connected to the LED lamp, and the LED lamp is controlled to emit light of different colors through the second contacts; the gravity of the cargo is converted into mechanical power through the early warning component, the first contact contacts with second contacts at different positions, and the light color of the LED lamp is adjusted to allow the drone pilot to judge the load size.

[0008] Preferably, the spring tube is arc-shaped.

[0009] Preferably, the adjustment mechanism includes a crossbeam installed transversely at the bottom end of the second rope, a plurality of insertion holes are provided on the upper surface of the crossbeam at equal distances from left to right, sliding seats are sleeved on the left and right sides of the outer wall of the crossbeam, a pin is vertically inserted into the top of the sliding seat, and the sliding seat is positioned when the pin is inserted into the inner cavity of the hole; the sliding seat moves laterally to change the horizontal position of the retracting and releasing mechanism.

[0010] Preferably, the folding and unfolding mechanism includes a storage box installed at the bottom of the slide seat, a positioning groove is provided at the center of the front side of the storage box, a rotating shaft capable of rotating around its own axis is installed at the center of the storage box through a bearing, a rotating assembly is installed at the front end of the rotating shaft, springs and positioning plates are respectively sleeved on the outer wall of the rotating shaft from front to back, and the positioning plate is pushed backward and inserted into the positioning groove under the action of the spring force, a reel is installed at the rear end of the rotating shaft, a third rope is wound around the outer wall of the reel, and the end of the third rope extends out of the lower surface of the storage box and is installed with a lifting ring; the third rope is wound around the reel to change the height of the lifting ring and adjust the center of gravity of the lifted goods.

[0011] Preferably, the inner cavity of the positioning groove and the positioning plate are both gear-shaped.

[0012] Preferably, the rotating assembly includes a hollow rod installed at the front end of the rotating shaft, a pull rod is inserted at the left end of the rear side of the hollow rod, and the rear end of the pull rod is connected to the front of the positioning plate, a guide plate that can slide left and right is inserted at the left end of the inner cavity of the hollow rod, a guide groove is provided on the upper surface of the guide plate, a pin that is inserted into the inner cavity of the guide groove is installed at the front end of the pull rod, one end of the cross bar is installed at the right end of the guide plate, a rotatable crank handle is installed at the right end of the hollow rod, a rotatable pressure rod is installed at the other end of the cross bar, and the pressure rod extends out of the outer wall of the crank handle.

[0013] Preferably, the guide groove is distributed on the outer wall of the guide plate at an angle of 45 degrees.

[0014] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: 1. The present invention adjusts the position of the slide seat by inserting the pin into the socket at different positions. When the pressure rod is pressed, the cross bar pulls the guide plate to move rightward. Under the cooperation of the guide groove and the pin, the pull rod can pull the positioning plate out of the positioning groove. When the reel rotates, the third rope is released or reeled in to change the height of the lifting ring. Therefore, the center of gravity and angle of the cargo lifting can be adjusted to prevent the cargo from falling due to unstable center of gravity and improving the stability of cargo throwing.

[0015] 2. The present invention uses the gravity of the cargo to allow the second rope to pull down the left rack. When the rack and the gear are transmitted, the piston squeezes the hydraulic oil upward, and the spring tube is deformed by the pressure of the hydraulic oil, allowing the connecting rod to pull the swing arm. The first contact point contacts the second contact point at a different position, which can make the LED lamp emit light of different colors. The load borne by the drone can be judged by the different luminous colors, so as to prevent the drone from being damaged due to overload operation and protect the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the payload warning mechanism; Figure 3 This is the main cross-sectional view of the load warning mechanism; Figure 4 This is the front view cross-section of the warning component; Figure 5 It is a schematic diagram of the structure of the adjustment mechanism and the retracting and releasing mechanism; Figure 6 It is a front cross-sectional view of the adjustment mechanism and the retracting and extending mechanism; Figure 7 It is a top view cross-sectional view of the retracting and extending mechanism; Figure 8 It is a top view cross-sectional view of the rotating assembly; Fig. 9 Schematic diagram of the guide plate structure.

[0017] In the figure: 1, UAV; 2, first rope; 3, load warning mechanism; 4, adjustment mechanism; 5, retracting mechanism; 31, gear box; 32, LED light; 33, gear; 34, guide rail; 35, rack; 36, second rope; 37, warning assembly; 371, piston cylinder; 372, piston; 373, disc; 374, spring tube; 375, hydraulic oil; 376, connecting rod; 377, swing rod; 378, first contact point; 3 79. second contact; 41. crossbeam; 42. socket; 43. slide; 44. latch; 51. storage box; 52. positioning groove; 53. shaft; 54. rotating assembly; 55. spring; 56. positioning plate; 57. reel; 58. third rope; 59. lifting ring; 541. hollow rod; 542. pull rod; 543. guide plate; 544. guide groove; 545. pin; 546. crossbar; 547. crank handle; 548. pressure rod. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. 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.

[0020] See also Figure 1-Figure 9 In an embodiment of the present invention, a throwing device applied to a drone includes a drone 1, a first rope 2 is installed at the bottom of the drone 1, a load warning mechanism 3 is installed at the bottom of the first rope 2, the load of the drone 1 when throwing cargo is detected by the load warning mechanism 3, an adjustment mechanism 4 is installed at the bottom of the load warning mechanism 3, and retracting mechanisms 5 are installed on both left and right sides of the bottom of the adjustment mechanism 4, and the center of gravity of the lifted cargo is adjusted by the adjustment mechanism 4 and the retracting mechanism 5.

[0021] More specifically, the load warning mechanism 3 includes a gear box 31 installed at the bottom end of the first rope 2, and LED lights 32 are installed on the front and rear sides of the gear box 31. The LED lights 32 are color-changing lights, and the load size of the drone 1 is judged by color change. A rotatable gear 33 is connected to the center of the inner cavity of the gear box 31 through a pin shaft, and guide rails 34 are installed on the left and right sides of the inner cavity of the gear box 31. The outer wall of the guide rail 34 is sleeved with a rack 35 meshing with the gear 33, and a second rope 36 is installed at the bottom end of the rack 35 on the left side. An early warning component 37 is vertically installed at the right end of the upper surface of the gear box 31, and the early warning component 37 is connected to the top of the rack 35 on the right side.

[0022] Furthermore, the warning component 37 includes a piston cylinder 371 installed on the right end of the upper surface of the gear box 31, the inner cavity of the piston cylinder 371 is plugged with a piston 372 that can slide up and down, and the bottom end of the piston 372 is connected to the top of the rack 35 located on the right side, and a disc 373 is installed on the top of the outer wall of the piston cylinder 371, and the disc 373 is hollow, and a spring tube 374 is installed on the top of the piston cylinder 371, and the spring tube 374 is arc-shaped. As the pressure of the hydraulic oil 375 increases, the deformation of the spring tube 374 also increases, so that the spring tube 374 pulls the connecting rod 376 to move, and the piston cylinder 37 1 and the inner cavity of the spring tube 374 is filled with hydraulic oil 375, the right end of the spring tube 374 is connected to one end of the connecting rod 376 through a pin shaft, the center position of the disk 373 is connected to a swing rod 377 through a pin shaft, the middle part of the swing rod 377 is connected to the other end of the connecting rod 376 through a pin shaft, the other end of the swing rod 377 is installed with a first contact 378, and the first contact 378 is electrically connected to the battery of the drone 1, and a plurality of second contacts 379 are installed along the circumferential direction of the inner wall of the disk 373, and the second contacts 379 are electrically connected to the LED lamp 32, and the LED lamp 32 is controlled to emit light of different colors through the second contacts 379.

[0023] More specifically, the adjustment mechanism 4 includes a crossbeam 41 installed transversely at the bottom end of the second rope 36, and a plurality of insertion holes 42 are provided on the upper surface of the crossbeam 41 at equal distances from left to right. Slide seats 43 are sleeved on both sides of the outer wall of the crossbeam 41, and a pin 44 is vertically inserted into the top of the slide seat 43. When the pin 44 is inserted into the inner cavity of the insertion hole 42, the slide seat 43 is positioned.

[0024] More specifically, the retractable mechanism 5 includes a storage box 51 installed at the bottom of the slide 43, a positioning groove 52 is opened at the center position of the front side of the storage box 51, a rotating shaft 53 that can rotate around its own axis is installed at the center position of the storage box 51 through a bearing, a rotating assembly 54 is installed at the front end of the rotating shaft 53, and the outer wall of the rotating shaft 53 is respectively sleeved with a spring 55 and a positioning plate 56 from front to back, and the positioning plate 56 is pushed backward and inserted into the positioning groove 52 under the elastic force of the spring 55. The inner cavity of the positioning groove 52 and the positioning plate 56 are both gear-shaped, so that the positioning plate 56 can be inserted into the inner cavity of the positioning groove 52 from multiple directions to brake the rotating shaft 53, and a reel 57 is installed at the rear end of the rotating shaft 53, and a third rope 58 is wound around the outer wall of the reel 57. The end of the third rope 58 extends out of the lower surface of the storage box 51 and is installed with a hanging ring 59.

[0025] Furthermore, the rotating assembly 54 includes a hollow rod 541 installed at the front end of the rotating shaft 53, a pull rod 542 is inserted at the left end of the rear side of the hollow rod 541, and the rear end of the pull rod 542 is connected to the front of the positioning plate 56, and a guide plate 543 that can slide left and right is inserted at the left end of the inner cavity of the hollow rod 541, and a guide groove 544 is opened on the upper surface of the guide plate 543, and the guide groove 544 is inclined at an angle of 45 degrees on the outer wall of the guide plate 543. When the guide plate 543 moves left and right, When moving, the guide groove 544 can squeeze the pin 545 backward or forward, thereby causing the pull rod 542 to pull the positioning plate 56 to move. The front end of the pull rod 542 is equipped with a pin 545 that is plugged into the inner cavity of the guide groove 544, the right end of the guide plate 543 is equipped with one end of a cross bar 546, the right end of the hollow rod 541 is equipped with a rotatable crank 547, and the other end of the cross bar 546 is equipped with a rotatable pressure rod 548, and the pressure rod 548 extends out of the outer wall of the crank handle 547.

[0026] Here’s how it works: Step 1: According to the shape of the cargo being thrown, move the slide 43 left and right, insert the pin 44 into the socket 42 at different positions, change the position of the slide 43, and then change the position of the lifting ring 59; Hold the crank 547 and press the pressure rod 548 to cause the cross bar 546 to pull the guide plate 543 to move rightward, and the guide groove 544 squeezes the pin 545 forward, so that the pull rod 542 pulls the positioning plate 56 to move out of the positioning groove 52, and the reel 57 can be rotated. The reel 57 reels and releases the third rope 58 to change the height of the lifting ring 59. When the pressure rod 548 is released, the spring 55 pushes the positioning plate 56 backward under its own elastic force, so that the positioning plate 56 is inserted into the positioning groove 52, the reel 57 is braked, and the lifting ring 59 moves in two dimensions. The lifting ring 59 can lift goods of different shapes and adjust the center of gravity of the goods. Step 2, the drone 1 drives the first rope 2 to rise. When the cargo leaves the ground, the gravity of the cargo pulls the rack 35 on the left side down. Under the transmission condition of the gear 33 and the rack 35, the rack 35 on the right side pushes the piston 372 upward. The piston 372 squeezes the hydraulic oil 375, and the pressure of the hydraulic oil 375 increases. The spring tube 374 is deformed under the pressure condition of the hydraulic oil 375. The spring tube 374 pulls one end of the connecting rod 376, and the other end of the connecting rod 376 pulls the swing rod 377. The swing rod 377 rotates. When the first contact 378 contacts the second contact 379 at a different position, the light color of the LED lamp 32 changes. The driver of the drone 1 determines whether the drone 1 is under load based on the color change to prevent the drone 1 from being damaged due to overweight.

[0027] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A throwing device for a drone, comprising a drone (1), characterized in that: The bottom of the drone (1) is provided with a first rope (2), the bottom end of the first rope (2) is provided with a load warning mechanism (3), the load of the drone (1) when dropping cargo is detected by the load warning mechanism (3), the bottom of the load warning mechanism (3) is provided with an adjustment mechanism (4), the bottom of the adjustment mechanism (4) is provided with a retractable mechanism (5) on both left and right sides, the center of gravity of the lifted cargo is adjusted by the adjustment mechanism (4) in cooperation with the retractable mechanism (5); The load warning mechanism (3) comprises a gear box (31) mounted at the bottom end of the first rope (2), LED lights (32) being mounted on both the front and rear sides of the gear box (31), the LED lights (32) being color-changing lights, and judging the load borne by the drone (1) by color change, a rotatable gear (33) being connected via a pin at the center of the inner cavity of the gear box (31), guide rails (34) being mounted on both the left and right sides of the inner cavity of the gear box (31), a rack (35) being meshed with the gear (33) being sleeved on the outer wall of the guide rail (34), a second rope (36) being mounted on the bottom end of the rack (35) on the left side, and a warning component (37) being vertically mounted on the right end of the upper surface of the gear box (31), and the warning component (37) being connected to the top of the rack (35) on the right side.

2. The throwing device for use in a drone according to claim 1, characterized in that: The warning component (37) comprises a piston cylinder (371) mounted on the right end of the upper surface of the gear box (31); a piston (372) capable of sliding up and down is inserted into the inner cavity of the piston cylinder (371); the bottom end of the piston (372) is connected to the top of the rack (35) located on the right side; a disk (373) is mounted on the top of the outer wall of the piston cylinder (371); the disk (373) is hollow; a spring tube (374) is mounted on the top of the piston cylinder (371); the inner cavities of the piston cylinder (371) and the spring tube (374) are filled with hydraulic oil (375); the right end of the spring tube (374) is connected to the top of the rack (35) located on the right side; One end of a connecting rod (376) is connected to a pin shaft, a swing rod (377) is connected to the center of the disk (373) via a pin shaft, a middle portion of the swing rod (377) is connected to the other end of the connecting rod (376) via a pin shaft, a first contact (378) is installed at the other end of the swing rod (377), and the first contact (378) is electrically connected to a battery of the drone (1), a plurality of second contacts (379) are installed along the circumferential direction of the inner wall of the disk (373), and the second contacts (379) are electrically connected to the LED lamp (32), and the LED lamp (32) is controlled to emit light of different colors via the second contacts (379).

3. The throwing device for use in a drone according to claim 2, characterized in that: The spring tube (374) is in an arc shape.

4. The throwing device for use in a drone according to claim 3, characterized in that: The adjustment mechanism (4) comprises a crossbeam (41) installed transversely at the bottom end of the second rope (36); a plurality of insertion holes (42) are provided on the upper surface of the crossbeam (41) at equal intervals from left to right; a slide seat (43) is sleeved on both the left and right sides of the outer wall of the crossbeam (41); a pin (44) is vertically inserted at the top of the slide seat (43); and the pin (44) is inserted into the inner cavity of the insertion hole (42) to position the slide seat (43).

5. The throwing device for use in a drone according to claim 4, characterized in that: The storage and release mechanism (5) comprises a storage box (51) mounted on the bottom of the slide seat (43); a positioning groove (52) is provided at the center of the front of the storage box (51); a rotating shaft (53) capable of rotating around its own axis is installed at the center of the storage box (51) through a bearing; a rotating assembly (54) is installed at the front end of the rotating shaft (53); a spring (55) and a positioning plate (56) are respectively sleeved on the outer wall of the rotating shaft (53) from front to back; the positioning plate (56) is pushed backward and inserted into the positioning groove (52) under the elastic force of the spring (55); a reel (57) is installed at the rear end of the rotating shaft (53); a third rope (58) is wound around the outer wall of the reel (57); the end of the third rope (58) extends out of the lower surface of the storage box (51) and is installed with a hanging ring (59).

6. The throwing device for use in a drone according to claim 5, characterized in that: The inner cavity of the positioning groove (52) and the positioning plate (56) are both gear-shaped.

7. The throwing device for use in a drone according to claim 6, characterized in that: The rotating assembly (54) includes a hollow rod (541) installed at the front end of the rotating shaft (53), a pull rod (542) is inserted at the left end of the rear side of the hollow rod (541), and the rear end of the pull rod (542) is connected to the front of the positioning plate (56), a guide plate (543) capable of sliding left and right is inserted at the left end of the inner cavity of the hollow rod (541), a guide groove (544) is provided on the upper surface of the guide plate (543), a pin (545) inserted into the inner cavity of the guide groove (544) is installed at the front end of the pull rod (542), one end of a cross bar (546) is installed at the right end of the guide plate (543), a rotatable crank handle (547) is installed at the right end of the hollow rod (541), and a rotatable pressure rod (548) is installed at the other end of the cross bar (546), and the pressure rod (548) extends out of the outer wall of the crank handle (547).

8. The throwing device for use in a drone according to claim 7, characterized in that: The guide grooves (544) are distributed on the outer wall of the guide plate (543) at an angle of 45 degrees.

Images