Airdrop device and unmanned aerial vehicle

Abstract

The present application relates to a kind of hanging delivery device and unmanned aerial vehicle, belong to aerospace technology field, solve the reliability and stability of the hanging goods of the hanging delivery device in prior art, the problem of large load required when unlocking, unlocking component occupies large space.The present application includes shell, hook unit, drive unit and connecting unit;Hook unit includes drive arm, connecting rod and hook;Drive arm and hook are hinged to shell by first hinged shaft and second hinged shaft respectively, and the both ends of connecting rod are hinged to drive arm and hook by third hinged shaft and fourth hinged shaft respectively;Hook can rotate around second hinged shaft, to drive connecting rod and drive arm movement;When hook unit locking state, first hinged shaft, third hinged shaft and fourth hinged shaft are collinear.The present application can realize the stability and reliability of the hanging goods when locking state, unlocking only needs small load, unlocking component structure is compact, and occupies small space.

Description

Technical Field

[0001] This invention relates to the field of aerospace technology, and more particularly to a sling-launch device and a drone. Background Technology

[0002] Currently, the application scenarios for drone-borne cargo transport are becoming increasingly diverse, necessitating a device capable of pinpoint cargo delivery, reducing the number of takeoffs and landings for unmanned helicopters and improving operational efficiency. Simultaneously, to ensure the safety of unmanned helicopters during cargo transport, the device must be able to promptly jettison cargo when its attitude becomes unstable, thus guaranteeing the drone's safety. Existing applications often employ a single unlocking mechanism, which, if malfunctioning, will fail to perform its intended function, resulting in low reliability. Furthermore, existing locking mechanisms exhibit poor reliability and stability when suspending cargo, require a significant load for unlocking, and occupy considerable space. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide a sling-and-deployment device and a drone to solve the problems of poor reliability and stability of existing sling-and-deployment devices for slinging goods, the need for a large load when unlocking, and the large space occupied by the unlocking components.

[0004] The objective of this invention is mainly achieved through the following technical solutions:

[0005] In a first aspect, the present invention provides a hanging and launching device, comprising a housing, a hook unit, a drive unit, and a connecting unit;

[0006] The housing supports the hook unit and the drive unit; the hook unit is used to suspend goods; the drive unit is connected to the hook unit and is used to drive the hook unit to unlock the goods; the connecting unit connects the suspension and delivery device to the cargo transport equipment.

[0007] The hook unit includes a drive arm, a connecting rod, and a hook; the drive arm and the hook are respectively hinged to the housing via a first hinge axis and a second hinge axis, and the two ends of the connecting rod are respectively hinged to the drive arm and the hook via a third hinge axis and a fourth hinge axis; the hook can rotate around the second hinge axis, thereby driving the connecting rod and the drive arm to move;

[0008] When the hook unit is locked, the first hinge axis, the third hinge axis, and the fourth hinge axis are collinear.

[0009] Furthermore, the driving unit includes a first driving unit; the first driving unit includes a lever assembly and a connector; the lever assembly is connected to the driving arm through the connector, and the movement of the lever assembly can drive the connector to rotate the driving arm.

[0010] Furthermore, the lever assembly includes a lever, a guide rod, and a cover plate, with the lever and the guide rod disposed inside the cover plate; the lever includes a lever body, which is sleeved on the guide rod and is capable of moving along the axis of the guide rod.

[0011] Furthermore, the first driving unit also includes a push-pull electromagnet; the push-pull electromagnet can drive its push rod to push the lever to move in the first direction along the direction of the guide rod;

[0012] The push rod passes through the middle of the electromagnet; when the electromagnet is energized, the push rod can move along its own axis.

[0013] The lever assembly also includes a second spring; one end of the second spring is connected to the lever body, and the other end of the second spring is connected to the inner wall of the housing. When the electromagnet drives the push rod to push the lever in the first direction along the direction of the guide rod, the second spring is compressed.

[0014] Furthermore, the connecting member includes a cam; the first end of the cam is connected to the lever, and the second end of the cam can rotate the drive arm.

[0015] Furthermore, the cam includes a cam body, the center of which is hinged to the first hinge axis, and the cam is rotatable about the first hinge axis;

[0016] The second end of the cam is a boss located on the edge of the cam body. When the cam rotates, the boss can contact the drive arm, thereby causing the drive arm to rotate.

[0017] The first end of the cam is a protrusion extending radially outward from the cam body, and a third pin is provided on the protrusion; the lever also includes a locking part provided on the upper part of the lever body, the locking part having an upwardly opening locking groove; the third pin passes through the through hole and engages in the locking groove, and can move with the lever.

[0018] Furthermore, the drive unit also includes a second drive unit, which includes a motor and a rudder arm; the rudder arm is disposed on the output shaft of the motor and located at the lower part of the drive arm; the rudder arm can rotate with the output shaft of the motor; when the rudder arm rotates, it can contact the drive arm and drive the drive arm to rotate.

[0019] Furthermore, the drive unit also includes a third drive unit; the third drive unit includes a knob, the knob is connected to the first hinge shaft, and the rotation of the knob can drive the first hinge shaft to rotate, and drive the drive arm to rotate.

[0020] Furthermore, it also includes a proximity switch sensor, which is disposed inside the housing and near the upper part of the hook. The top of the hook is provided with an ear plate for the proximity switch sensor to detect the unlocking / locking state of the hook.

[0021] A second aspect of the present invention provides a drone, including a drone body and the aforementioned sling-and-deployment device; the sling-and-deployment device is connected to the drone body via a connecting unit.

[0022] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0023] (1) In this invention, the drive arm, connecting rod, hook and housing of the hook unit form a four-bar linkage structure. The linkage between the connecting rods realizes the stable locking and rapid release of the hook, improving the overall stability and reliability of the system. The structure is simple, compact and occupies little space. When the hanging and placing device is locked, the first hinge shaft, the third hinge shaft and the fourth hinge shaft are collinear and the transmission angle is 0°. The line of action of the driving force passes through the rotation center of the drive arm and cannot generate an effective rotational torque, forming a reliable self-locking structure to ensure the stability and reliability of the hanging. When unlocking, only a small torque is required from the drive unit to disengage from the locking dead point, so as to realize rapid release and accurate placement. The unlocking is efficient and applicable to small loads.

[0024] (2) The first drive unit is suitable for emergency release and unlocking. When the electromagnet is energized, the push rod moves along its own axis towards the engaging part, pushing the lever to move, and the lever compresses the second spring; the lever drives the cam's protrusion to move, causing the cam body to rotate clockwise around the hinge axis, the boss contacts the drive arm, pushes the drive arm upward, drives the drive arm to rotate, completes the unlocking, and realizes the immediate release of the goods. The entire unlocking process is responsive and reliable, unaffected by the working status of the main drive system, effectively ensuring the safety of release in emergency situations.

[0025] (3) The second drive unit is suitable for normal delivery and unlocking. After receiving the control signal, the motor starts and drives the rudder arm to rotate. The free end of the rudder arm pushes the drive arm to move. The drive arm overcomes the resistance of the elastic element and rotates, releasing the locking of the connecting rod. After the rudder arm pushes the drive arm out of the self-locking position, the connecting rod is quickly released under the action of inertia, driving the hook to rotate counterclockwise around the second hinge axis, realizing the smooth release of the cargo. The entire unlocking process is responsive, so as to accurately complete the delivery task in complex flight environments, taking into account both high reliability and rapid response requirements.

[0026] (4) The third drive unit is suitable for manual unlocking in the absence of power. The knob is connected to the first hinge shaft. The operator can manually rotate the knob to directly transmit torque to the first hinge shaft, driving the four-bar linkage to disengage from the self-locking dead point, thus achieving reliable unlocking under no-power conditions. This ensures that the system still has emergency operation capabilities under extreme conditions such as complete power failure or control failure, further improving overall safety and task adaptability. Each drive unit is independent and compatible with each other, meeting the needs of multiple operation scenarios.

[0027] (5) The present invention is equipped with multiple drive units, which are used for normal deployment unlocking, emergency deployment unlocking and manual unlocking respectively. When the second drive unit fails, the first drive unit is activated. When the power fails, the third drive unit is activated, which improves the reliability of the device and solves the problem of low reliability of a single unlocking mechanism. Each drive unit is independent and compatible with each other, meeting the needs of multi-scenario operation.

[0028] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the specification or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the content specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0029] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0030] Figure 1 This is a schematic diagram of the front structure of the hanging and launching device in Example 1;

[0031] Figure 2 This is a schematic diagram of the rear structure of the hanging and launching device in Example 1;

[0032] Figure 3 This is a schematic diagram of the shell structure of Example 1;

[0033] Figure 4 This is a schematic diagram of the hook unit structure in Example 1;

[0034] Figure 5 This is a schematic diagram of the drive arm in Example 1;

[0035] Figure 6 This is a schematic diagram of the hook structure in Example 1;

[0036] Figure 7 This is a schematic diagram of the hook unit in the locked state in Embodiment 1;

[0037] Figure 8 This is a schematic diagram of the hook unit in the unlocked state in Embodiment 1;

[0038] Figure 9 This is a schematic diagram of the connection structure between the first drive unit and the hook assembly in Embodiment 1;

[0039] Figure 10 This is a schematic diagram of the cam structure in Example 1;

[0040] Figure 11 This is a schematic diagram of the internal components of the cover plate in Example 1;

[0041] Figure 12 This is a schematic diagram of the connection structure between the second drive unit and the hook assembly in Embodiment 1;

[0042] Figure 13 This is a schematic diagram of the structure of the second drive unit in Embodiment 1;

[0043] Figure 14 This is a schematic diagram of the structure of the third drive unit in Example 1;

[0044] Figure 15 This is a schematic diagram of the connector structure in Example 1;

[0045] Figure 16 This is a schematic diagram of the proximity switch sensor structure in Example 1.

[0046] Figure label:

[0047] 1-Housing; 11-Front housing; 111-Stop surface; 112-Arc-shaped through hole; 12-Rear housing; 2-Hook unit; 21-Drive arm; 211-Stop pin; 22-Connecting rod; 221-First pin; 23-Hook; 231-Second pin; 232-Ear; 24-First hinge shaft; 25-Second hinge shaft; 26-Third hinge shaft; 27-Fourth hinge shaft; 28-First spring; 3-First drive unit; 31-Cover plate; 32-Lever; 321-Long... Through hole; 322- Engaging groove; 33- Guide rod; 331- Limit pin; 34- Second spring; 35- Cam; 351- Cam body; 3511- Boss; 352- Protrusion; 36- Electromagnet; 37- Push rod; 38- Third pin; 4- Second drive unit; 41- Motor; 42- Rudder arm; 5- Third drive unit; 51- Knob; 6- Connecting unit; 61- Connecting seat; 62- Connecting plate; 63- Fourth pin; 7- Proximity switch sensor; 71- Bracket. Detailed Implementation

[0048] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0049] Example 1

[0050] A specific embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a hanging and launching device is disclosed, including a housing 1, a hook unit 2, a drive unit and a connecting unit 6;

[0051] The housing 1 is used to support the hook unit and the drive unit; the hook unit 2 is used to suspend goods; the drive unit is connected to the hook unit 2 and is used to drive the hook unit 2 to unlock the goods; the connecting unit 6 is used to connect the suspension and delivery device to the goods transportation equipment.

[0052] The hook unit 2 includes a drive arm 21, a connecting rod 22, and a hook 23. The drive arm 21 and the hook 23 are respectively hinged to the housing 1 via a first hinge shaft 24 and a second hinge shaft 25. The two ends of the connecting rod 22 are respectively hinged to the drive arm 21 and the hook 23 via a third hinge shaft 26 and a fourth hinge shaft 27. The hook 23 can rotate around the second hinge shaft 25, thereby driving the connecting rod 22 and the drive arm 21 to move.

[0053] When the hook unit 2 is locked, the first hinge shaft 24, the third hinge shaft 26 and the fourth hinge shaft 27 are collinear.

[0054] In this embodiment, the drive arm 21, connecting rod 22, hook 23 of the hook unit 2 and the housing 1 form a four-bar linkage structure. The linkage between the connecting rods achieves stable locking and rapid release of the hook, improving the overall stability and reliability of the system. The structure is simple, compact, and occupies little space. When the hanging and placing device is locked, the first hinge shaft 24, the third hinge shaft 26, and the fourth hinge shaft 27 are collinear, with a transmission angle of 0°. The line of action of the driving force passes through the rotation center of the drive arm 21, and no effective rotational torque can be generated, forming a reliable self-locking structure to ensure the stability and reliability of the hanging. When unlocking, only a small torque is required from the drive unit to disengage from the locking dead point, thus achieving rapid release and accurate placement. The unlocking is efficient and suitable for small loads.

[0055] Specifically, such as Figure 3 As shown, housing 1 is formed by fastening together a front housing 11 and a rear housing 12. The front of the front housing 11 is provided with a knob 51 indicating the rotation direction.

[0056] like Figure 4As shown, in this embodiment, the hook unit 2 includes a drive arm 21, a connecting rod 22, and a hook 23. The drive arm 21 and the connecting rod 22 are disposed inside the front housing 11. The drive arm 21 and the hook 23 are respectively hinged to the two sides of the front housing 11 via a first hinge shaft 24 and a second hinge shaft 25. The two ends of the connecting rod 22 are respectively hinged to the drive arm 21 and the hook 23 via a third hinge shaft 26 and a fourth hinge shaft 27.

[0057] The drive arm 21, connecting rod 22, hook 23, and housing 1 form a four-bar linkage structure. In this embodiment, hook 23 is the driving arm, connecting rod 22 is the transmission component, and drive arm 21 is the driven component. When hook 23 rotates, it drives drive arm 21 to rotate around the first hinge axis 24 via connecting rod 22.

[0058] like Figure 6 As shown, the hook 23 has a hinge and a hook. The hook is used to hang goods, and the hinge is used to install the second hinge shaft 25 and the fourth hinge shaft 27.

[0059] like Figure 5 As shown, a stop pin 211 is provided at the top of the drive arm 21. When the lifting and dropping device is locked, the stop pin 211 abuts against the top of the connecting rod 22. By rotating the knob in the locking direction or pushing the hook upward until the drive arm 21 rotates to the dead center position, the mechanical structure automatically enters a stable locking state. At this time, the hook 23 cannot be opened by external force. During the unlocking process, the drive unit applies torque to the drive arm 21, causing the four-link 22 to disengage from the dead center. The connecting rod 22 separates from the stop pin 211, and the hook 23 then rotates around the second hinge axis 25 to release the cargo.

[0060] like Figure 7 As shown, when the hoisting and launching device is locked, the first hinge shaft 24, the third hinge shaft 26, and the fourth hinge shaft 27 are collinear. At this time, the drive arm 21 and the connecting rod 22 are collinear, the transmission angle is 0°, and the line of action of the driving force passes through the rotation center of the drive arm 21, preventing the generation of an effective rotational torque. This forms a reliable self-locking structure, and unlocking only requires overcoming a very small locking arm torque and the frictional torque at the hinge point, effectively reducing the load requirements of the drive components. Unlocking is convenient, efficient, and reliable. In the locked state, the goods are vertically suspended within the hook.

[0061] like Figure 8 As shown, when the lifting and dropping device is in the unlocked state, the drive arm 21 is perpendicular to the connecting rod 22, and the hook of the hook 23 is tilted downward. A stop surface 111 is provided on the inner side of the housing 1. When in the unlocked state, the hook 23 opens to one side, and the side of the hook 23 fits against the stop surface 111 to limit the open state of the hook 23, and the goods are taken out from the hook 23.

[0062] Furthermore, to ensure the stability of the hook unit 2 in both locked and unlocked states, a first pin 221 is provided in the middle of the connecting rod 22, and a second pin 231 is provided on the hook 23. A first spring 28 is provided between the first pin 221 and the second pin 231. The two ends of the first spring 28 are connected to the first pin 221 and the second pin 231 respectively, providing preload to enhance the structural stability between the connecting rod 22 and the hook 23. During locking, the first spring 28 is in a stretched state, and the spring tension causes the four-bar linkage 22 structure to quickly enter the dead-point self-locking position, improving the locking response speed and reliability. During unlocking, the first spring 28 releases energy, assisting the drive unit in driving the connecting rod 22 out of the collinear state, effectively overcoming the frictional resistance at the hinge and ensuring smooth operation. At the same time, the elasticity of the first spring 28 maintains tight contact between the connecting rod 22 and the pin throughout the entire process, preventing the components from loosening due to vibration or impact, and significantly improving the working stability of the hook 23 assembly.

[0063] To address the issue that a single unlocking structure is not secure enough and cannot be applied to various scenarios, this embodiment sets up multiple driving units to be suitable for a variety of application scenarios.

[0064] Specifically, the driving unit includes a first driving unit 3, which is used for emergency deployment and unlocking. For example... Figure 9 As shown, the first drive unit 3 is located on the outside of the front housing 11.

[0065] The first drive unit 3 includes a lever assembly. The lever assembly includes a lever 32, a guide rod 33, and a cover plate 31. The lever 32 and the guide rod 33 are disposed inside the cover plate 31, which has a simple and compact structure and occupies little space.

[0066] For example, such as Figure 11 As shown, both ends of the guide rod 33 are fixed to the lower part of the cover plate 31 by pins. The lever 32 includes a lever body, which is sleeved on the guide rod 33 and can move along the axis of the guide rod 33. Further, in order to limit the movement of the lever 32, a limit pin 331 is provided on the guide rod 33, and a corresponding elongated through hole 321 is provided on the lever body. When the lever body moves, the limit pin 331 moves in the elongated through hole 321, limiting the range of movement of the lever body. When the lever body moves to the limit position along the axis of the guide rod 33, the limit pin 331 abuts against the end of the elongated through hole 321, ensuring that the lever 32 is stable in the emergency unlocking position.

[0067] The lever assembly also includes a second spring 34, one end of which is connected to the lever body and the other end of which is connected to the end of the guide rod 33 near the inner wall of the housing 1, for resetting the movement of the lever 32.

[0068] The connecting element includes a cam 35. For example... Figure 10As shown, one end of the cam 35 is connected to the lever 32, and the other end of the cam 35 is connected to the drive arm 21. The cam 35 includes a cam body 351, which is centrally hinged to a first hinge axis 24, and the cam 35 is rotatable around the first hinge axis 24.

[0069] The cam 35 also includes a protrusion 352. The protrusion 352 is formed by radially extending one side of the cam body 351. The lever 32 also includes a locking part disposed on the upper part of the lever body. The locking part has an upwardly opening locking groove 322. The protrusion 352 is provided with a through hole. The third pin 38 passes through the through hole and engages in the locking groove 322, so that the cam 35 moves with the lever 32. While moving with the lever 32, the cam 35 rotates around the first hinge axis 24. An outwardly protruding boss 3511 is provided on the edge of the cam body 351 near the lower part of the drive arm 21. When the cam 35 rotates, the boss 3511 can contact the drive arm 21, driving the drive arm 21 to rotate, completing the unlocking and realizing the immediate release of the goods. The entire unlocking process is responsive, reliable, and unaffected by the working status of the main drive system, effectively ensuring the safety of delivery in emergency situations.

[0070] Furthermore, the first driving unit 3 also includes a push-pull electromagnet 36, which is disposed on one side of the engaging portion, with a push rod 37 passing through the middle of the electromagnet 36. The push-pull electromagnet 36 can drive its push rod 37 to push the lever 32 to move in the first direction along the direction of the guide rod. After the electromagnet 36 is energized, the push rod 37 moves along its own axis, and the end of the push rod 37 abuts against the side of the engaging portion, which can push the engaging portion to move, causing the lever 32 to reciprocate. The electromagnet 36 is fixed on the cover plate 31, and a power plug is provided on one side of the cover plate 31 for supplying power to the electromagnet 36.

[0071] When the electromagnet 36 is energized, the push rod 37 moves along its own axis in the first direction, pushing the lever 32 to move. The lever 32 compresses the second spring 34. The lever 32 drives the protrusion 352 of the cam 35 to move, causing the cam body 351 to rotate clockwise around the hinge axis. The boss 3511 contacts the drive arm 21, pushing the drive arm 21 upward and causing it to rotate, thus completing the unlocking. After unlocking, the power is cut off, the push rod 37 retracts, and the lever 32 returns to its original position under the action of the second spring 34. At this time, the lever 32, through the cooperation of the protrusion 352 and the engagement groove 322, drives the cam 35 back to its initial position. The boss 3511 of the cam 35 disengages from the drive arm 21, releasing the constraint on the hook unit 2. The entire unlocking process is completed quickly and is suitable for rapid response in emergency situations.

[0072] The drive unit also includes a second drive unit 4, which is suitable for normal deployment and unlocking. For example... Figure 12 and Figure 13As shown, the second drive unit 4 includes a motor 41 and a rudder arm 42.

[0073] The motor 41 is located outside the rear housing 12. For example... Figure 13 As shown, motor 41 is equipped with a motor protective housing, and a power plug is located on the outside of the motor protective housing. The rudder arm 42 is mounted on the output shaft of motor 41 and is located below the drive arm 21. The rudder arm 42 can rotate with the output shaft of motor 41. For example, the rudder arm 42 is L-shaped. Figure 12 As shown, when the rudder arm 42 rotates, it can contact the drive arm 21 and drive the drive arm 21 to rotate, thereby unlocking the hook unit 2. After receiving a control signal, the motor 41 starts, driving the rudder arm 42 to rotate. The free end of the rudder arm 42 pushes the drive arm 21 to move, and the drive arm 21 overcomes the resistance of the elastic element to rotate, releasing the lock on the connecting rod 22. After the rudder arm 42 pushes the drive arm 21 out of the self-locking position, the connecting rod 22 is quickly released under inertia, causing the hook 23 to rotate counterclockwise around the second hinge axis 25, achieving smooth cargo release. The entire unlocking process is responsive, enabling precise delivery in complex flight environments, balancing high reliability and rapid response requirements, and featuring a compact structural design.

[0074] The drive unit also includes a third drive unit 5, which is suitable for manual unlocking in the absence of power. For example... Figure 14 As shown, the third drive unit 5 includes a knob 51, which is fixedly connected to the first hinge shaft 24. Specifically, the knob 51 is located on the outside of the front housing 11, and the front housing 11 has a through hole through which the first hinge shaft 24 passes and connects to the knob 51. When unlocking, rotating the knob 51 causes the first hinge shaft 24 to rotate. As the first hinge shaft 24 rotates, the drive arm 21 rotates accordingly, driving the four-bar linkage to disengage from its self-locking dead point, achieving reliable unlocking under no-power conditions. This ensures that the system still has emergency operation capabilities under extreme conditions such as complete power failure or control failure, further improving overall safety and task adaptability.

[0075] like Figure 15 As shown, the connection unit 6 includes a connection base 61 and a connection plate 62 disposed on the connection base 61. The connection base 61 is used to connect the drone, and the connection plate 62 is connected to the housing 1. Exemplarily, the lower part of the connection base 61 has a U-shaped groove, and the connection plate 62 is disposed in the U-shaped groove. The lower end of the connection plate 62 is provided with a pin hole, which is connected to the housing 1 through a fourth pin 63.

[0076] Furthermore, it also includes a proximity switch sensor 7. For example... Figure 16As shown, the proximity switch sensor 7 is disposed on the upper part of the housing 1 near the hook 23. A lug 232 is provided at the top of the hook 23 for the proximity switch sensor 7 to detect the unlocked / locked state of the hook 23. The information is then displayed on the ground station computer interface via data transmission. In this embodiment, the lug 232 is provided at the top of the hook 23, thereby housing the proximity switch sensor 7 within the housing 1. The housing protects the proximity switch sensor 7 and improves the reliability of detecting the unlocked / locked state of the hook 23.

[0077] The proximity switch sensor 7 is connected to the bracket 71, which is inserted into the groove at the upper end of the front housing 11 and fixed in place.

[0078] This embodiment is equipped with multiple drive units, which are used for normal delivery unlocking, emergency delivery unlocking, and manual unlocking, respectively. When the normal delivery mechanism fails, the emergency delivery mechanism is activated. When the power fails, manual unlocking is performed, which improves the reliability of the device and solves the problem of low reliability of a single unlocking mechanism. Each drive unit is independent and compatible with each other, meeting the needs of multiple operation scenarios.

[0079] Example 2

[0080] This embodiment discloses a drone, including a drone body and the sling-launch device described in Embodiment 1. The connecting unit 6 of the sling-launch device is connected to the drone body.

[0081] Compared with the prior art, the advantages of the drone in this embodiment are the same as those of the hanging and launching device in Embodiment 1, and will not be repeated here.

[0082] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A hanging and dispensing device, characterized in that, It includes a housing (1), a hook unit (2), a drive unit, and a connection unit (6); The housing (1) is used to support the hook unit and the drive unit; the hook unit (2) is used to hang goods; the drive unit is connected to the hook unit (2) and is used to drive the hook unit (2) to unlock the goods; the connecting unit (6) is used to connect the hanging and dropping device to the cargo transportation equipment. The hook unit (2) includes a drive arm (21), a connecting rod (22), and a hook (23); the drive arm (21) and the hook (23) are respectively hinged to the housing (1) via a first hinge shaft (24) and a second hinge shaft (25); the two ends of the connecting rod (22) are respectively hinged to the drive arm (21) and the hook (23) via a third hinge shaft (26) and a fourth hinge shaft (27); the hook (23) can rotate around the second hinge shaft (25), thereby driving the connecting rod (22) and the drive arm (21) to move; When the hook unit (2) is locked, the first hinge shaft (24), the third hinge shaft (26) and the fourth hinge shaft (27) are collinear; The drive unit includes a first drive unit (3); the first drive unit (3) includes a lever assembly and a connector; the lever assembly is connected to the drive arm (21) through the connector, and the movement of the lever assembly can drive the connector to rotate the drive arm (21); The lever assembly includes a lever (32), a guide rod (33), and a cover plate (31). The lever (32) and the guide rod (33) are disposed inside the cover plate (31). The lever (32) includes a lever body, which is sleeved on the guide rod (33) and can move along the axis of the guide rod (33). The connecting member includes a cam (35). The first end of the cam (35) is connected to the lever (32), and the second end of the cam (35) can rotate the drive arm (21). The cam (35) includes a cam body (351), the center of which is hinged to the first hinge shaft (24), and the cam (35) can rotate around the first hinge shaft (24); the second end of the cam (35) is a boss (3511) provided on the edge of the cam body (351), and when the cam (35) rotates, the boss (3511) can contact the drive arm (21), thereby causing the drive arm (21) to rotate; the first end of the cam is a protrusion (352) extending radially outward from the cam body (351), and a third pin (38) is provided on the protrusion (352); the lever (32) also includes a locking part provided on the upper part of the lever body, and the locking part has an upwardly opening locking groove (322); the third pin (38) is engaged in the locking groove (322).

2. The hanging and launching device according to claim 1, characterized in that, The first driving unit (3) further includes a push-pull electromagnet (36); the push-pull electromagnet (36) can drive its push rod (37) to push the lever (32) to move in the first direction along the direction of the guide rod; The push rod (37) passes through the middle of the push-pull electromagnet (36); after the push-pull electromagnet (36) is energized, the push rod (37) can move along its own axis. The lever assembly also includes a second spring (34); one end of the second spring (34) is connected to the lever body, and the other end of the second spring (34) is connected to the inner wall of the housing (1). When the push-pull electromagnet (36) drives the push rod to push the lever (32) to move in the first direction along the direction of the guide rod, the second spring (34) is compressed.

3. The hanging and launching device according to claim 1, characterized in that, The drive unit further includes a second drive unit (4), which includes a motor (41) and a rudder arm (42); the rudder arm (42) is disposed on the output shaft of the motor (41) and located below the drive arm (21); the rudder arm (42) can rotate with the output shaft of the motor (41); when the rudder arm (42) rotates, it can contact the drive arm (21) and drive the drive arm (21) to rotate.

4. The hanging and launching device according to claim 1, characterized in that, The drive unit further includes a third drive unit (5); the third drive unit (5) includes a knob (51), which is connected to the first hinge shaft (24); the rotation of the knob (51) can drive the first hinge shaft (24) to rotate, thereby driving the drive arm (21) to rotate.

5. The hanging and launching device according to claim 1, characterized in that, It also includes a proximity switch sensor (7), which is disposed inside the housing (1) and near the upper part of the hook (23). The top of the hook (23) is provided with an ear piece (232) for the proximity switch sensor (7) to detect the unlocking / locking state of the hook (23).

6. A drone, characterized in that, Includes the main body of the drone and the sling-and-deploy device as described in any one of claims 1-5; The sling-launch device is connected to the main body of the UAV via a connecting unit (6).

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