A hoisting device and a drone

Abstract

The present application relates to the technical field of hoisting unmanned aerial vehicle, in particular to a hoisting device and unmanned aerial vehicle. The hoisting device comprises a fixing mechanism, an unhooking mechanism and a hoisting mechanism. The unhooking mechanism comprises a fixing seat, one end of which is connected with the fixing mechanism, and the other end is connected with a first side plate and a second side plate. A pressing rod and a lock hook are clamped between the two side plates, and are rotatably installed between the two side plates through a first rotating shaft and a second rotating shaft respectively. A clamping part is arranged on the pressing rod, and a matching part is arranged on the lock hook. The hoisting mechanism is hung on the lock hook. The first side plate extends a lug seat, and a spring is connected between the lug seat and the pressing rod. The two ends of the spring are hung on the lug seat and the pressing rod respectively. A driving part is installed on the side of the first side plate away from the pressing rod. The driving part is connected with a lock pin, one end of which is detachably inserted into a lock hole arranged on the pressing rod. The present application can realize remote and rapid unhooking under the sudden situation of unmanned aerial vehicle hanging on a tree.

Description

Technical Field

[0001] This invention relates to the field of hoisting drone technology, specifically to a hoisting device and a drone. Background Technology

[0002] Lifting drones refer to drones that use lifting devices to suspend goods beneath their fuselage for transporting or dropping supplies. During takeoff, landing, or low-altitude flight, the lifting ropes of these drones are highly susceptible to snagging on obstacles such as tree branches and power lines, causing the drone to become trapped and unable to free itself. Forcibly dragging it can easily lead to the drone losing control and crashing. Existing lifting devices struggle to perform proactive and rapid unhooking operations in such emergencies, often forcing operators to resort to destructive methods such as cutting the ropes, which is neither safe nor economical.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hoisting device and a drone to solve the problem that hoisting devices in related technologies cannot actively and quickly detach from the hook in case of emergencies such as being caught on a tree.

[0005] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution: On one hand, the present invention provides a hoisting device, including a fixing mechanism, a disengaging mechanism, and a hoisting mechanism. The disengaging mechanism includes a fixing base, one end of which is connected to the fixing mechanism, and the other end of which is connected to two opposing side plates, namely a first side plate and a second side plate. A pressure rod and a locking hook are clamped between the first side plate and the second side plate. The pressure rod is rotatably mounted between the two side plates via a first rotating shaft, and the locking hook is rotatably mounted between the two side plates via a second rotating shaft. The pressure rod is provided with a locking part, and the locking hook is provided with a mating part that can engage with the locking part. The hoisting mechanism is hooked onto the locking hook. When the mating part engages with the locking part, the pressure rod locks the hoisting mechanism within the locking hook. The first side plate extends to a lug, and an elastic element is connected between the lug and the pressure rod. The two ends of the elastic element are respectively hooked onto the lug and the pressure rod. A driving element is installed on the side of the first side plate away from the pressure rod. The driving element is connected to a locking pin, and one end of the locking pin is detachably inserted into a locking hole opened on the pressure rod.

[0006] Furthermore, the top of both the first side plate and the second side plate are provided with insertion holes, and the bottom of the fixing base is provided with two protrusions, which are respectively inserted into the two insertion holes.

[0007] Furthermore, a mounting plate is fixed to the side of the first side plate away from the pressure rod. The mounting plate includes a first mounting plate and a second mounting plate. The first mounting plate is fixed to the side wall of the first side plate, and the second mounting plate is perpendicularly connected to the first mounting plate. The drive component is mounted on the second mounting plate, and its output shaft is connected to a rocker arm. The end of the rocker arm away from the servo motor is provided with a threaded hole. The locking pin is provided with a connecting part, and a through hole is opened on the connecting part. A connecting piece passes through the through hole and is screwed into the threaded hole to hinge the rocker arm to the locking pin.

[0008] Furthermore, a linear bearing is mounted on the first mounting plate, and a flange is provided in the middle of the linear bearing. The flange is embedded in the mounting hole opened on the first mounting plate, and a through hole is opened on the flange. The locking pin slides through the through hole and can be detachably inserted into the locking hole opened on the pressure rod.

[0009] Furthermore, a quick-release screw is connected to the end of the locking pin away from the pressure rod.

[0010] Furthermore, a first limiting member and a second limiting member are installed between the first side plate and the second side plate, and the pressure rod is located between the first limiting member and the second limiting member.

[0011] Furthermore, a signal box is installed on the fixing mechanism, and a controller is provided inside the signal box. The controller is electrically connected to the driving component.

[0012] Furthermore, it also includes a shielding component, which includes a base and a top cover. The base is fixed to the two side plates, and the top cover is detachably connected to the base and covers the upper part of the two side plates. The lower part of the two side plates is exposed outside the shielding component.

[0013] Furthermore, a bearing is installed on each side of the pressure rod near the locking hook, and the two bearings respectively abut against the locking hook.

[0014] Furthermore, a composite bushing is installed inside the lock hole of the pressure rod.

[0015] Furthermore, a pressure block is clamped between the first side plate and the second side plate, and a slot is provided on the opposite side of the first side plate and the second side plate, and the two ends of the pressure block are respectively inserted into the two slots.

[0016] Furthermore, the hoisting mechanism includes a shackle, which includes an arc-shaped component, a pin, and a locking component. Each end of the arc-shaped component has a through hole, and the pin passes through both through holes. One end of the pin is fastened by a fixing component, and the locking component is inserted through the end of the pin where the fixing component is located. A hoisting rope is attached to the arc-shaped component.

[0017] Furthermore, the locking hook has a short arm and a long arm, the end of the short arm abuts against the pressure block, the end of the long arm is provided with the mating part, the mating part engages with the locking part of the pressure rod, and the shackle is clamped between the short arm and the long arm.

[0018] On the other hand, the present invention provides a drone including the above-described hoisting device.

[0019] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The unhooking mechanism provided by this invention adopts a linkage structure of locking pin, pressure bar, and elastic element. The lifting mechanism is locked to the unhooking mechanism by the engagement of the pressure bar and the locking hook, with the locking pin providing a lock for the pressure bar. When unhooking is required, the controller controls the drive component to drive the locking pin out of the locking hole of the pressure bar. After the pressure bar is unlocked, it separates from the locking hook under the tension of the elastic element. The locking hook rotates under the weight of the cargo, and the shackle slips out to release the lifting rope, achieving rapid unhooking. This structure enables remote and rapid unhooking in emergencies such as drones getting caught in trees, and is safe and convenient to operate. Furthermore, its compact overall structure allows for direct installation on the drone frame without occupying excessive load space, and it is reusable, resulting in low operating costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the hoisting device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the unhooking mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the shielding component provided in an embodiment of the present invention; Figure 4 This is an exploded view of the unhooking mechanism provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the unhooking mechanism provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the unhooking mechanism provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the first side plate and the second side plate provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the unhooking mechanism provided in an embodiment of the present invention; Figure 9This is a schematic diagram of the unhooking mechanism provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the control box provided in an embodiment of the present invention; Figure 11 This is a structural schematic diagram of the shackle and hoisting rope provided in an embodiment of the present invention; In the diagram: 1: Fixing mechanism; 2: Unhooking mechanism; 3: Lifting mechanism; 4: Fixing base; 5: First side plate; 6: Second side plate; 7: Pressure rod; 8: Locking hook; 9: First rotating shaft; 10: Second rotating shaft; 11: Ear seat; 12: Elastic element; 13: Driving element; 14: Locking pin; 15: Insertion hole; 16: Protrusion; 17: First mounting plate; 18: Second mounting plate; 19: Rocker arm; 20: Connecting element; 21: Linear bearing; 22: Quick-release screw; 23: First limiting element; 24: Second limiting element; 25: Signal box; 26: Obstruction element; 27: Base; 28: Top cover; 29: Bearing; 30: Composite bushing; 31: Pressure block; 32: Slot; 33: Shackle; 34: Bow-shaped element; 35: Pin; 36: Locking element; 37: Fixing element; 38: Lifting rope. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Example

[0023] like Figure 1-11As shown, this embodiment provides a hoisting device, including a fixing mechanism 1, a disengaging mechanism 2, and a hoisting mechanism 3. The fixing mechanism 1 is used to connect with the frame of a drone, the hoisting mechanism 3 is used to suspend cargo, and the disengaging mechanism 2 is connected between the fixing mechanism 1 and the hoisting mechanism 3. When the drone is trapped due to sudden situations such as getting stuck in a tree, the disengaging mechanism 2 can be triggered to release the hoisting mechanism 3.

[0024] In this embodiment, the unhooking mechanism 2 includes a fixed base 4. One end of the fixed base 4 is connected to the fixed mechanism 1, and the other end is connected to two oppositely arranged side plates, namely the first side plate 5 and the second side plate 6.

[0025] In this embodiment, the top of the first side plate 5 and the second side plate 6 are provided with insertion holes 15, and the bottom of the fixing base 4 is provided with two protrusions 16, which are respectively inserted into the two insertion holes 15.

[0026] Specifically, each of the two side plates and the fixing base 4 has two through holes, which are spaced apart from each other. During assembly, the first side plate 5 and the second side plate 6 are first secured to the two protrusions 16 through their respective insertion holes 15. Then, two bolts are inserted from one side of the second side plate 6, passing through the corresponding through holes on the second side plate 6, the fixing base 4, and the first side plate 5 in sequence. Nuts are screwed into the ends of the bolts that protrude from the first side plate 5 to lock them in place, thereby fixing the two side plates to the fixing base 4.

[0027] In this embodiment, a pressure block 31 is sandwiched between the first side plate 5 and the second side plate 6. A slot 32 is provided on the opposite side of the first side plate 5 and the second side plate 6. The two ends of the pressure block 31 are respectively inserted into the two slots 32.

[0028] Specifically, two through holes are provided on both side plates and the pressure block 31. The two through holes are arranged vertically and horizontally. Two bolts are passed through the corresponding through holes on the second side plate 6, the pressure block 31 and the first side plate 5 in sequence. A nut is screwed into the end of the bolt that passes through the first side plate 5 to lock it, so that the pressure block 31 is respectively inserted into the two slots 32.

[0029] In this embodiment, a pressure rod 7 and a locking hook 8 are sandwiched between the first side plate 5 and the second side plate 6. The pressure rod 7 is rotatably mounted between the two side plates via a first rotating shaft 9, and the locking hook 8 is rotatably mounted between the two side plates via a second rotating shaft 10.

[0030] Specifically, the pressure rod 7 has a through hole in the middle, and the two side plates have corresponding through holes in the middle. The first rotating shaft 9 passes through the corresponding through holes on the second side plate 6, the pressure rod 7 and the first side plate 5 in sequence, and a nut is screwed into the end of the first rotating shaft 9 that passes through the first side plate 5 to lock it, thereby rotatably connecting the pressure rod 7 and the two side plates.

[0031] The lower part of the locking hook 8 has a through hole, and the bottom of each of the two side plates has a corresponding through hole. The second rotating shaft 10 passes through the corresponding through holes on the second side plate 6, the locking hook 8 and the first side plate 5 in sequence, and a nut is screwed into the end of the second rotating shaft 10 that passes through the first side plate 5 to lock it, thereby rotatably connecting the locking hook 8 to the two side plates.

[0032] In this embodiment, the upper part of the locking hook 8 has a short arm and a long arm, wherein the short arm and the long arm form a clamping part for clamping the hoisting mechanism 3.

[0033] In this embodiment, the short arm end of the locking hook 8 abuts against the pressure block 31, the pressure rod 7 is provided with a locking part, and the long arm end of the locking hook 8 is provided with a cooperating part that can be engaged with the locking part. When the cooperating part is engaged with the locking part, the pressure rod 7 locks the hoisting mechanism 3 between the short arm and the long arm of the locking hook 8.

[0034] In this embodiment, a bearing 29 is installed on each side of the pressure rod 7 near the locking hook 8, and the two bearings 29 abut against the locking hook 8 respectively.

[0035] In this embodiment, the hoisting mechanism 3 includes a shackle 33, which includes an arc-shaped member 34, a pin 35, and a locking member 36. Each end of the arc-shaped member 34 has a through hole, and the pin 35 passes through both through holes. One end of the pin 35 is fastened by a fixing member 37, and the locking member 36 passes through the end of the pin 35 where the fixing member 37 is located. A hoisting rope 38 is attached to the arc-shaped member 34.

[0036] Specifically, during assembly, the pin 35 is inserted through the through hole on one side of the bow-shaped member 34, and after passing through the through hole on the other side of the bow-shaped member 34, the fixing member 37 is screwed into the end of the pin 35 that is protruding and locked. Then, the locking member 36 is inserted into the end of the pin 35 that is protruding from the fixing member 37 to prevent the fixing member 37 from loosening. After assembly, the bow-shaped member 34 is hooked onto the locking hook 8, and the pin 35 is clamped between the short arm and the long arm of the locking hook 8.

[0037] In this embodiment, the first side plate 5 extends to a lug 11, and an elastic element 12 is connected between the lug 11 and the pressure rod 7. The two ends of the elastic element 12 are respectively hooked onto the lug 11 and the pressure rod 7.

[0038] Specifically, the ear seat 11 and the pressure rod 7 are both provided with threaded holes at one end of the elastic element 12, and bolts are screwed into the threaded holes. The two ends of the elastic element 12 are respectively hooked onto the two bolts.

[0039] In this embodiment, a driving member 13 is installed on the side of the first side plate 5 away from the pressure rod 7. The driving member 13 is connected to a locking pin 14, and one end of the locking pin 14 is detachably inserted into a locking hole opened on the pressure rod 7.

[0040] Specifically, a mounting plate is fixed to the side of the first side plate 5 away from the pressure rod 7. The mounting plate includes a first mounting plate 17 and a second mounting plate 18. The first mounting plate 17 is fixed to the side wall of the first side plate 5, and the second mounting plate 18 is perpendicularly connected to the first mounting plate 17.

[0041] The drive component 13 is mounted on the second mounting plate 18, and its output shaft is connected to a rocker arm 19. The rocker arm 19 has a threaded hole at one end away from the drive component 13. The locking pin 14 has a connecting part with a through hole. A connecting component 20 passes through the through hole and is screwed into the threaded hole to hinge the rocker arm 19 to the locking pin 14.

[0042] More specifically, the drive component 13 is a servo motor, the rocker arm 19 is a servo motor rocker arm, and the servo motor rocker arm is fixed to the output shaft of the servo motor by bolts.

[0043] In this embodiment, a linear bearing 21 is mounted on the first mounting plate 17. The linear bearing 21 has a flange in the middle. The flange is embedded in the mounting hole opened on the first mounting plate 17. A through hole is opened on the flange. The locking pin 14 slides through the through hole and can be detachably inserted into the locking hole opened on the pressure rod 7.

[0044] In this embodiment, a composite bushing 30 is installed in the lock hole of the pressure rod 7; a quick-release screw 22 is connected to the end of the locking pin 14 away from the pressure rod 7.

[0045] Specifically, during assembly, the first mounting plate 17 is first fixed to the first side plate 5 with bolts, then the servo is installed on the second mounting plate 18 with bolts, and one end of the servo rocker arm 19 is fixedly connected to the output shaft of the servo. The linear bearing 21 is fixed to the first mounting plate 17 with bolts, and the flange in the middle of the linear bearing 21 is embedded in the mounting hole opened on the first mounting plate 17 and abuts against the side wall of the first side plate 5. Next, one end of the locking pin 14 is slid through the through hole on the flange of the linear bearing 21 and inserted into the composite bushing 30 in the locking hole opened on the pressure rod 7. The quick-release screw 22 is installed on the end of the locking pin 14 away from the pressure rod 7. Finally, the connector 20 is passed through the through hole opened on the connecting part of the locking pin 14 and screwed into the threaded hole opened on the end of the servo rocker arm 19 away from the servo.

[0046] In this embodiment, a first limiting member 23 and a second limiting member 24 are installed between the first side plate 5 and the second side plate 6, and the pressure rod 7 is located between the first limiting member 23 and the second limiting member 24.

[0047] Specifically, the first limiting member 23 and the second limiting member 24 are used to limit the rotation range of the pressure rod 7.

[0048] In this embodiment, a shielding member 26 is also included. The shielding member 26 includes a base 27 and a top cover 28. The base 27 is fixed to the two side plates. The top cover 28 is detachably connected to the base 27 and covers the upper part of the two side plates. The lower part of the two side plates is exposed in the shielding member 26.

[0049] Specifically, the shapes of the base 27 and the upper cover 28 are adapted to the unhooking mechanism 2. The base 27 of the shielding member 26 extends with an ear seat, and the ear seat has a through hole. Corresponding through holes are formed on the two side plates. The base 27 is fixed to the two side plates by bolts passing through the through holes, so that the base 27 surrounds the periphery of the two side plates. During assembly, the base 27 is first fixed to the two side plates, and then the upper cover 28 is fixedly connected to the base 27, so that the upper cover 28 covers the upper part of the two side plates, and the lower part of the two side plates is exposed through the shielding member 26.

[0050] In this embodiment, a signal box 25 is installed on the fixing mechanism 1, and a controller is provided inside the signal box 25. The controller is electrically connected to the driving component 13.

[0051] In this embodiment, the assembly process of the hoisting device is as follows: First, assemble the disengagement mechanism 2: assemble the fixed base 4, first side plate 5, second side plate 6, and pressure block 31 into the main frame; assemble the bearing 29 and composite bushing 30 onto the pressure rod 7, and rotate the assembled pressure rod 7 between the first side plate 5 and the second side plate 6 via the first rotating shaft 9; install and fix the first limiting member 23 and the second limiting member 24 between the first side plate 5 and the second side plate 6; attach one end of the elastic member 12 to the ear seat 11 of the first side plate 5, and the other end to the pressure rod 7; fix the base 27 of the shielding member 26 onto the first side plate 5 and the second side plate 6; install the servo motor onto the second mounting plate 18, and install one end of the rocker arm 19 onto the servo motor's input... On the output shaft, the linear bearing 21 is installed on the first mounting plate 17, and the first mounting plate 17 is installed on the first side plate 5. One end of the locking pin 14 is slidably passed through the linear bearing 21 and inserted into the composite bushing 30 on the pressure rod 7. The connecting piece 20 is passed through the connecting part of the locking pin 14 and screwed into the threaded hole of the rocker arm 19. The quick-release screw 22 is fixed to the other end of the locking pin 14. The shackle 33 is assembled and hooked onto the locking hook 8. The lower part of the locking hook 8 is rotatably installed between the first side plate 5 and the second side plate 6 through the second rotating shaft 10. The mating part of the locking hook 8 is snapped into the engaging part of the pressure rod 7. The upper cover 28 of the shield 26 is fixedly connected to the base 27.

[0052] Next, the hoisting rope 38 is connected to the bow-shaped part 34 of the shackle 33, and finally the fixing seat 4 is fixed to the fixing mechanism 1 with bolts, thereby completing the overall assembly of the hoisting device.

[0053] In this embodiment, the working principle of the hoisting device is as follows: Under normal hoisting conditions, the engaging part of the locking hook 8 engages with the engaging part of the pressure rod 7, and the locking pin 14 is inserted into the locking hole on the pressure rod 7, holding the pressure rod 7 in the locked position. At this time, the hoisting rope 38 is locked in the locking hook 8 by the shackle 33. One end of the elastic element 12 is attached to the lug 11 of the first side plate 5, and the other end is attached to the pressure rod 7, applying an elastic pulling force to the pressure rod 7 to rotate it toward the unlocked position.

[0054] When the drone becomes stuck and needs to unhook, the operator sends a command via remote control. Upon receiving the command, the controller inside the signal box 25 sends an electrical signal to the servo motor. Upon receiving the signal, the servo motor drives its output shaft to rotate, causing the servo motor arm 19 to swing. The servo motor arm 19, through the connector 20, causes the locking pin 14 to slide axially along the linear bearing 21, allowing the end of the locking pin 14 to disengage from the locking hole of the pressure rod 7.

[0055] After the locking pin 14 is released, the pressure rod 7 loses its locking constraint and rotates around the first rotating shaft 9 under the tension of the elastic element 12. At this time, the end of the pressure rod 7 with the engaging part is raised, causing the engaging part to separate from the engaging part of the locking hook 8. After the locking hook 8 loses the constraint of the pressure rod 7, it rotates around the second rotating shaft 10 under the weight of the hoisting rope 38 and the cargo. The shackle 33 slips off the locking hook 8, and the hoisting rope 38 and the cargo are released, completing the unhooking action. Example

[0056] This embodiment provides a drone, including the hoisting device described in Embodiment 1, which is fixed to the frame of the drone by a fixing mechanism 1.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A hoisting device, characterized in that, The system includes a fixing mechanism (1), a hook-off mechanism (2), and a hoisting mechanism (3). The hook-off mechanism (2) includes a fixing seat (4). One end of the fixing seat (4) is connected to the fixing mechanism (1), and the other end is connected to two opposing side plates, namely a first side plate (5) and a second side plate (6). A pressure rod (7) and a locking hook (8) are clamped between the first side plate (5) and the second side plate (6). The pressure rod (7) is rotatably installed between the two side plates via a first rotating shaft (9). The locking hook (8) is rotatably installed between the two side plates via a second rotating shaft (10). The pressure rod (7) is provided with a locking part, and the locking hook (8) is provided with a mating part that can engage with the locking part. The hoisting mechanism (3) is hooked onto the locking hook (8). When the mating part engages with the locking part, the pressure rod (7) locks the hoisting mechanism (3) into the locking hook (8). The first side plate (5) extends to a lug seat (11), and an elastic element (12) is connected between the lug seat (11) and the pressure rod (7). The two ends of the elastic element (12) are respectively hooked onto the lug seat (11) and the pressure rod (7). A driving element (13) is installed on the side of the first side plate (5) away from the pressure rod (7). The driving element (13) is connected to a locking pin (14), and one end of the locking pin (14) is detachably inserted into a lock hole opened on the pressure rod (7).

2. The hoisting device according to claim 1, characterized in that, The top of the first side plate (5) and the second side plate (6) are provided with insertion holes (15), and the bottom of the fixing base (4) is provided with two protrusions (16), which are respectively inserted into the two insertion holes (15).

3. The hoisting device according to claim 1, characterized in that, A mounting plate is fixed on the side of the first side plate (5) away from the pressure rod (7). The mounting plate includes a first mounting plate (17) and a second mounting plate (18). The first mounting plate (17) is fixed to the side wall of the first side plate (5), and the second mounting plate (18) is perpendicularly connected to the first mounting plate (17). The driving member (13) is mounted on the second mounting plate (18), and its output shaft is connected to a rocker arm (19). The rocker arm (19) has a threaded hole at one end away from the driving member (13). The locking pin (14) has a connecting part with a through hole. A connecting member (20) passes through the through hole and is screwed into the threaded hole to hinge the rocker arm (19) to the locking pin (14).

4. The hoisting device according to claim 3, characterized in that, A linear bearing (21) is mounted on the first mounting plate (17). A flange is provided in the middle of the linear bearing (21). The flange is embedded in the mounting hole opened on the first mounting plate (17). A through hole is opened on the flange. The locking pin (14) slides through the through hole and can be detachably inserted into the locking hole opened on the pressure rod (7).

5. The hoisting device according to claim 4, characterized in that, The end of the locking pin (14) away from the pressure rod (7) is connected to a quick-release screw (22).

6. The hoisting device according to claim 1, characterized in that, A first limiting member (23) and a second limiting member (24) are installed between the first side plate (5) and the second side plate (6), and the pressure rod (7) is located between the first limiting member (23) and the second limiting member (24).

7. The hoisting device according to claim 1, characterized in that, A signal box (25) is installed on the fixing mechanism (1), and a controller is provided inside the signal box (25). The controller is electrically connected to the driving component (13).

8. The hoisting device according to claim 1, characterized in that, It also includes a shield (26), which includes a base (27) and a top cover (28). The base (27) is fixed to the two side plates. The top cover (28) is detachably connected to the base (27) and covers the upper part of the two side plates. The lower part of the two side plates is exposed in the shield (26).

9. The hoisting device according to claim 1, characterized in that, The pressure rod (7) is equipped with a bearing (29) on each side near the locking hook (8), and the two bearings (29) abut against the locking hook (8) respectively.

10. The hoisting device according to claim 1, characterized in that, A composite bushing (30) is installed in the lock hole of the pressure rod (7).

11. The hoisting device according to claim 1, characterized in that, A pressure block (31) is sandwiched between the first side plate (5) and the second side plate (6). The first side plate (5) and the second side plate (6) are provided with slots (32) on opposite sides. The two ends of the pressure block (31) are respectively inserted into the two slots (32).

12. The hoisting device according to claim 11, characterized in that, The hoisting mechanism (3) includes a shackle (33), which includes an arc-shaped part (34), a pin (35), and a locking part (36). Each end of the arc-shaped part (34) has a through hole, and the pin (35) passes through both through holes. One end of the pin (35) is fastened by a fixing part (37), and the locking part (36) is inserted through the end of the pin (35) where the fixing part (37) is located. A hoisting rope (38) is attached to the arc-shaped part (34).

13. The hoisting device according to claim 12, characterized in that, The locking hook (8) has a short arm and a long arm. The end of the short arm abuts against the pressure block (31). The end of the long arm is provided with the mating part. The mating part engages with the locking part of the pressure rod (7). The shackle (33) is clamped between the short arm and the long arm.

14. An unmanned aerial vehicle (UAV), characterized in that, The hoisting device includes any one of claims 1-13.

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