Load structure for unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicle loads, in particular to an unmanned aerial vehicle load structure which comprises a concave supporting seat, supporting legs are symmetrically and fixedly mounted on the left side and the right side of the concave supporting seat, a clamping driving mechanism is mounted on the inner side of the concave supporting seat, and an opening of the concave supporting seat is designed downwards. T-shaped connecting plates are symmetrically mounted on the left side and the right side of the clamping driving mechanism, and clamping parts are detachably mounted at the lower ends of the two T-shaped connecting plates. The unmanned aerial vehicle has the beneficial effects that when the load body needs to be clamped, the unmanned aerial vehicle drives the load structure to sleeve the load body, and meanwhile, the clamping parts are distributed on the left side and the right side of the load body; and in the downward landing process of the unmanned aerial vehicle, the lower end of the anti-falling mechanism rotates outwards to be opened, and meanwhile, the anti-falling mechanism drives the transmission mechanism to move close to the first locking mechanism, so that the first locking mechanism loosens locking of the clamping driving mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle loads, and in particular to a load structure for unmanned aerial vehicles. Background Art

[0002] With the gradual maturity of drone technology, drones have been applied in more and more fields due to their good adaptability and flexible operation. Drones need to be equipped with loads such as cameras, rescue materials, remote sensing equipment, etc. to complete fixed-point shooting, throwing, observation, rescue and other tasks. The drone and the load are detachably connected, which is convenient for the drone to replace the load to complete different types of tasks. At present, in order to facilitate the clamping or clamping of the load, the load structure of some drones is mostly designed as a clamping claw or two symmetrical clamping parts to clamp and fix the load; although this method can quickly clamp or release the load, it has certain defects in the process of transporting the load. In the process of clamping the load, if the clamping force is too large, the load will be damaged. If the clamping force is not enough, the drone will cause the load to fall during transportation, thereby causing damage to the load; and the existing load clamping mechanism does not have a self-locking mechanism, and shaking occurs during the transportation of the drone, which will cause the clamping mechanism to loosen, so that the load cannot be firmly clamped, causing the load to fall and be damaged, which is not conducive to actual use. Summary of the invention

[0003] The object of the present invention is to provide a load structure for a drone to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a load structure for a drone, comprising a concave support seat, support legs are symmetrically fixedly installed on the left and right sides of the concave support seat, a clamping drive mechanism is installed on the inner side of the concave support seat, the opening of the concave support seat is designed to face downward, T-shaped connecting plates are symmetrically installed on the left and right sides of the clamping drive mechanism, the lower ends of the two T-shaped connecting plates are detachably installed with clamping parts, the opposite surfaces of the two symmetrical clamping parts are fixedly connected with anti-skid protection pads, and the load body is clamped between the two anti-skid protection pads; A first locking mechanism for automatically locking the clamping drive mechanism is installed at the upper end of the concave support seat, and anti-fall mechanisms for protecting the load body are symmetrically installed on the front and rear sides of the concave support seat. An L-shaped mounting plate is symmetrically fixedly connected to the upper end of the concave support seat, and a cross bar is fixedly connected between the two L-shaped mounting plates. A transmission mechanism for unlocking the first locking mechanism is symmetrically sleeved on the cross bar, and both ends of the transmission mechanism are respectively connected to the two anti-fall mechanisms symmetrically front and back.

[0005] As a further solution of the present invention, the clamping drive mechanism includes a bidirectional transmission screw rotatably installed between the two side plates of the concave support seat through a rotating shaft. The bidirectional transmission screw is symmetrically sleeved with I-shaped sliding sleeves before and after, and the I-shaped sliding sleeves are threadedly connected to the bidirectional transmission screw. The left and right ends of each I-shaped sliding sleeve are rotatably connected to a movable plate through a round shaft, and one end of the movable plate away from the I-shaped sliding sleeve is hinged to a T-shaped connecting plate through a hinge.

[0006] As a further solution of the present invention, first T-shaped chutes are symmetrically opened at the front and rear of the upper end of the concave support seat, and second T-shaped chutes are symmetrically opened on the left and right sides of the two first T-shaped chutes at the upper end of the concave support seat. A first T-shaped block is fixedly installed at the upper end of the I-shaped sliding sleeve, and the first T-shaped block is slidably connected to the adjacent first T-shaped chute before and after. Second T-shaped blocks are symmetrically fixedly connected to the front and rear of the upper end of the T-shaped connecting plate, and the second T-shaped blocks are slidably connected to the second T-shaped chute left and right; A through groove is opened between the two first T-shaped chutes symmetrically arranged at the front and rear of the upper end of the concave support seat. A positioning gear is fixedly sleeved at the middle position of the bidirectional transmission screw, and the positioning gear is clamped with a first locking mechanism, and the first locking mechanism is installed at the upper end of the through groove.

[0007] As a further solution of the present invention, the first locking mechanism includes a positioning tooth block clamped on the upper end of the positioning gear. The upper end of the positioning tooth block is fixedly connected to a pressing plate. The bottom of the left and right ends of the pressing plate is inclined inward to form a pressing slope. Lifting seats are symmetrically fixedly connected to the front and rear sides of the pressing plate. A through hole is opened from top to bottom through the upper end of the lifting seat. A guide post is slidably inserted through the through hole from top to bottom, and the lower end of the guide post is fixedly connected to the upper end of the concave support seat; The upper end of the guide post is sequentially sleeved with an anti-drop ring and a positioning spring from top to bottom. The anti-drop ring is fixedly connected to the upper end of the guide post, and the upper and lower ends of the positioning spring are respectively abutted against the anti-drop ring and the lifting seat.

[0008] As a further solution of the present invention, the anti-falling mechanism includes a positioning frame fixedly connected to the upper end of the concave support seat. One side of the positioning frame is in the same vertical plane as the side of the concave support seat. A rotating arm is rotatably installed on the side of the positioning frame through a hinge shaft. The lower end of the rotating arm is designed to bend outward. A roller is rotatably connected to the bottom of the bent part at the lower end of the rotating arm. An anti-falling support foot is fixedly installed at the lower end of the rotating arm on the side close to the concave support seat. A round rod is fixedly connected to the upper end of the rotating arm on the side close to the concave support seat. The front and rear ends of the transmission mechanism are respectively in contact with the upper ends of the two symmetrically arranged rotating arms before and after; Vertical plates are symmetrically and fixedly connected to the front and rear sides of the concave support base in the left-right direction. The vertical plates are in contact with the side surfaces of the rotating arms. On the side of the vertical plates close to the rotating arms, a sector-shaped guide plate and an arc-shaped rod are fixedly connected in sequence from top to bottom. The sector-shaped guide plate and the arc-shaped rod penetrate through the rotating arms vertically above and below. A fixing ring is fixedly sleeved on the upper end of the arc-shaped rod, and a downward pressing spring is sleeved on the arc-shaped rod.

[0009] As a further scheme of the present invention, the upper and lower ends of the downward pressing spring are respectively abutted against the fixing ring and the rotating arm. The two vertical plates are arranged between the two rotating arms that are symmetrically arranged left and right, and the two vertical plates are respectively in contact with the sides of the two rotating arms that are close to each other.

[0010] As a further scheme of the present invention, the transmission mechanism includes a T-shaped transmission plate arranged between the two rotating arms that are symmetrically arranged front and back. The T-shaped transmission plate is sleeved on the cross bar. An extrusion groove is formed on the side surface of the T-shaped transmission plate. One end of an extrusion plate is sleeved in the extrusion groove. The extrusion inclined surface at the end of the extrusion plate is in sliding contact with the bottom of the extrusion groove. Transmission blocks are symmetrically and fixedly connected to the front and rear ends of the T-shaped transmission plate. A transmission groove is formed through the side of the transmission block close to the rotating arm. The transmission groove is sleeved on a round rod, and the round rod is slidably connected to the transmission groove vertically.

[0011] As a further scheme of the present invention, a second locking mechanism for locking the clamping drive mechanism is installed on the outer side surface of a side plate of the concave support base. One end of the second locking mechanism is connected to the rotating shaft at one end of the bidirectional transmission screw; The second locking mechanism includes a concave plate fixedly installed on the outer side surface of a side plate of the concave support base. A circular groove is formed through the side surface of the concave plate. A polygonal rod is arranged through the circular groove. One end of the polygonal rod is fixedly connected to the outer end of the rotating shaft; A limiting plate, a locking spring, an adjusting plate, a first annular crown gear and a second annular crown gear are sleeved on the outer end of the polygonal rod in sequence from outside to inside. The limiting plate is fixedly connected to the outer end of the polygonal rod. Neither the first annular crown gear nor the second annular crown gear is in contact with the polygonal rod. One end of the second annular crown gear is rotatably connected to the circular groove. The adjusting plate is fixedly connected to the first annular crown gear. The teeth of the first annular crown gear and the teeth of the second annular crown gear are engaged. A ratchet is fixedly sleeved on the outer side of the second annular crown gear. The ratchet is arranged inside the concave plate. The ratchet is in rotational contact with the inner side wall of the concave plate provided with the circular groove. An anti-rotation mechanism is installed on the inner side of the concave plate on the side of the ratchet.

[0012] As a further solution of the present invention, the side of the second annular crown gear away from the teeth is in rotational contact with the concave support seat. The two ends of the locking spring are respectively abutted against the limiting plate and the adjusting plate. A polygonal groove matching the polygonal rod is formed through the side surface of the adjusting plate, and the polygonal groove is slidably connected to the polygonal rod in the front and back directions.

[0013] As a further solution of the present invention, the anti-rotation mechanism includes a pawl clamped on the side surface of the ratchet wheel. The pawl is rotatably connected to the concave plate and the concave support seat through a pin shaft respectively, and a return spring is inserted between the side surface of the pawl and the concave plate.

[0014] The beneficial effects of the present invention are as follows: 1. When it is necessary to clamp the load body, the drone drives the load structure to sleave on the load body, and at the same time, the clamping parts are distributed on the left and right sides of the load body; during the process of the drone descending, the lower end of the anti-falling mechanism rotates outward and opens, and at the same time, the anti-falling mechanism drives the transmission mechanism to move close to the first locking mechanism, so that the first locking mechanism releases the locking of the clamping driving mechanism; at this time, rotate the adjusting plate forward, so that the clamping driving mechanism drives the two T-shaped connecting plates to approach each other, so that the two clamping parts drive the anti-slip protection pads to clamp and fix the load body; the ratchet wheel is locked by the provided anti-rotation mechanism to prevent the second locking mechanism from reversing, and further prevent the bidirectional transmission screw from reversing, so that the clamping parts and the anti-slip protection pads can firmly clamp and fix the load body.

[0015] 2. At this time, the drone drives the load body to slowly take off upward through the load structure, so as to transport the load body; under the action of the elastic force of the downward pressure spring, the rotating arm rotates downward until the side surface of the rotating arm contacts the side surface of the vertical plate. At this time, the anti-falling support feet rotate to directly below the load body and can support the load body at any time, preventing the load body from falling; if the load body falls downward, after the load body falls a certain distance, the lower end of the load body contacts the upper end of the anti-falling support feet, and the anti-falling support feet support and position the load body, so as to effectively prevent the load body from continuing to fall downward and play a role in protecting the load body.

[0016] 3. When it is necessary to unload the load body, if the load body does not fall, at this time, the lower ends of the left and right symmetric anti-falling mechanisms rotate outward and open, and at the same time, the anti-falling mechanism drives the transmission mechanism to move close to the first locking mechanism, so that the first locking mechanism releases the locking of the clamping driving mechanism; pull the adjusting plate outward along the polygonal rod, and then reverse the adjusting plate, so that the clamping part drives the anti-slip protection pad to release the clamping and fixing of the load body, complete the unloading of the load body, and then release the adjusting plate for resetting; 4. If the load body drops, the rollers at the lower end of the rotating arm will first contact the landing platform or the ground. At this time, the rotating arm and the rollers play a supporting role until the drone stops and completes the landing. Manually pull the pressing plate upward to release the locking of the positioning gear by the first locking mechanism, then pull the adjusting plate outward along the polygonal rod, and reverse-rotate the adjusting plate to drive the clamping part of the clamping drive mechanism to release the clamping of the load body. At this time, slowly push the load body upward. Under the action of the gravity of the drone and the load structure, the rotating arm will tilt outward and rotate, and the rollers will roll along the landing platform or the ground until the rotating arm opens to the maximum. At this time, the lower end of the support leg contacts the landing platform or the ground, and the concave support seat is supported by the support leg, thereby realizing the support of the drone. At this time, the drone can be manually moved upward, or automatically moved upward after the drone is started. The drone drives the load structure to move upward from the upper end of the load body, and the unloading of the load body is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a three-dimensional view of the anti-fall mechanism of the load structure for the drone of the present invention when it is vertical; Figure 2 FIG. is a three-dimensional view of the anti-fall mechanism of the load structure for the drone of the present invention when it opens outward; Figure 3 FIG. is an exploded view of the structures of the concave support seat, the first locking mechanism, the transmission mechanism and the anti-fall mechanism of the present invention; Figure 4 FIG. is a side sectional view of the concave support seat structure of the present invention; Figure 5 FIG. is a side sectional view of the structures of the concave support seat, the clamping part and the transmission mechanism of the present invention; Figure 6 FIG. is a partial schematic view of the structures of the concave support seat, the second locking mechanism and the anti-rotation mechanism of the present invention; Figure 7 FIG. is an exploded view of the structures of the concave support seat, the clamping drive mechanism, the clamping part and the first locking mechanism of the present invention; Figure 8 FIG. is an exploded view of the structures of the concave support seat, the second locking mechanism and the anti-rotation mechanism of the present invention.

[0018] In the figure: 1. Concave support base; 11. Through groove; 12. First T-shaped sliding groove; 13. Second T-shaped sliding groove; 14. L-shaped mounting plate; 15. Cross bar; 16. Support leg; 2. Bidirectional transmission screw; 21. I-shaped sliding sleeve; 22. First T-shaped block; 23. Movable plate; 24. T-shaped connecting plate; 25. Second T-shaped block; 26. Clamping part; 27. Load body; 3. Positioning gear; 31. Positioning tooth block; 32. Extrusion plate; 33. Lifting seat; 34. Guide post; 35. Anti-drop ring; 36. Positioning spring; 4. Positioning frame; 41. Rotating arm; 42. Roller; 43. Anti-falling support foot; 44. Round bar; 5. Vertical plate; 51. Arc bar; 52. Pressing spring; 53. Fixed ring; 54. Sector guide plate; 6. T-shaped transmission plate; 61. Extrusion groove; 62. Transmission block; 63. Transmission groove; 7. Concave plate; 71. Polygonal bar; 72. Limiting plate; 73. Locking spring; 74. Adjusting plate; 75. First annular crown gear; 76. Second annular crown gear; 77. Ratchet; 8. Pawl; 81. Return spring. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a load structure for an unmanned aerial vehicle, including a concave support base 1. Support legs 16 are symmetrically and fixedly installed on the left and right sides of the concave support base 1. A clamping drive mechanism is installed inside the concave support base 1. The opening of the concave support base 1 faces downward. T-shaped connecting plates 24 are symmetrically installed on the left and right sides of the clamping drive mechanism. The upper ends of the T-shaped connecting plates 24 are in sliding contact with the top inside the concave support base 1. Removable clamping parts 26 are installed at the lower ends of the two T-shaped connecting plates 24. Anti-slip protection pads are fixedly connected to the opposite surfaces of the two symmetrically arranged clamping parts 26 on the left and right. A load body 27 is clamped between the two anti-slip protection pads; A first locking mechanism for automatically locking the clamping drive mechanism is installed at the upper end of the concave support base 1. Anti-falling mechanisms for protecting the load body 27 are symmetrically installed on the front and back sides of the concave support base 1 in the left and right directions. L-shaped mounting plates 14 are symmetrically and fixedly connected to the left and right sides of the upper end of the concave support base 1. A cross bar 15 is fixedly connected between the two L-shaped mounting plates 14. A transmission mechanism for unlocking the first locking mechanism is symmetrically sleeved on the cross bar 15. The two ends of the transmission mechanism are respectively connected to the two anti-falling mechanisms that are symmetrically arranged in the front and back.

[0021] The two anti-falling mechanisms on the front and rear sides of the concave support seat 1 are symmetrically distributed front and back, and the transmission mechanism is arranged between the two symmetrical anti-falling mechanisms.

[0022] The upper end of the L-shaped mounting plate 14 is fixedly connected to the lower end of the drone, and the connection method is a detachable connection by bolts, clamping, etc.

[0023] See also Figure 4 , Figure 5 and Figure 7 The clamping drive mechanism includes a bidirectional transmission screw 2 that is rotatably installed between the two side plates of the concave support seat 1 through a rotating shaft. The bidirectional transmission screw 2 is a circular rod, and a left-handed thread and a right-handed thread are respectively provided at both ends. A rotating shaft is integrally formed at both ends of the bidirectional transmission screw 2. The bidirectional transmission screw 2 is rotatably connected to the side plate of the concave support seat 1 through the rotating shaft. An I-shaped sleeve 21 is symmetrically sleeved on the bidirectional transmission screw 2 front and back. The upper end of the I-shaped sleeve 21 is in front and back sliding contact with the top of the inner side of the concave support seat 1. The I-shaped sleeve 21 is threadedly connected to the bidirectional transmission screw 2. The left and right ends of each I-shaped sleeve 21 are rotatably connected to a movable plate 23 through a circular shaft. The end of the movable plate 23 away from the I-shaped sleeve 21 is hinged to the T-shaped connecting plate 24 through a hinge.

[0024] By the forward or reverse rotation of the bidirectional transmission screw 2, the bidirectional transmission screw 2 drives the two I-shaped sliding sleeves 21 thereon to move closer or farther backward, and the I-shaped sliding sleeve 21 drives the movable plate 23 to rotate when moving, and the movable plate 23 drives the T-shaped connecting plate 24 to move, so that the two T-shaped connecting plates 24 are moved closer to each other to clamp and fix the load body 27, or the two T-shaped connecting plates 24 are moved away from each other to clamp and fix the loosened load body 27.

[0025] See also Figures 4 to 7 The upper end of the concave support seat 1 is symmetrically provided with a first T-shaped slot 12, and the upper end of the concave support seat 1 is symmetrically provided with a second T-shaped slot 13 on both sides of the left and right sides of the two first T-shaped slots 12. The upper end of the I-shaped sliding sleeve 21 is fixedly provided with a first T-shaped block 22, and the first T-shaped block 22 is slidably connected to the adjacent first T-shaped slot 12 in a front-to-back manner. The upper end of the T-shaped connecting plate 24 is symmetrically fixedly connected with a second T-shaped block 25, and the second T-shaped block 25 is slidably connected to the second T-shaped slot 13 in a left-right manner. A through groove 11 is provided at the upper end of the concave support seat 1 between two front-to-rear symmetrical first T-shaped slide grooves 12, and a positioning gear 3 is fixedly sleeved at the middle position of the bidirectional transmission screw 2. The positioning gear 3 is clamped with the first locking mechanism, and the first locking mechanism is installed at the upper end of the through groove 11.

[0026] When the I-shaped sliding sleeve 21 moves back and forth, the I-shaped sliding sleeve 21 drives the first T-shaped block 22 to slide back and forth along the first T-shaped sliding groove 12, so that the I-shaped sliding sleeve 21 can move back and forth stably; When the T-shaped connecting plate 24 moves left and right, the T-shaped connecting plate 24 drives the second T-shaped block 25 to slide left and right along the second T-shaped sliding groove 13, so that the T-shaped connecting plate 24 can move left and right stably. The T-shaped connecting plate 24 drives the clamping portion 26 and the anti-slip protection pad to clamp or release the load body 27.

[0027] Please refer to Figure 5 and Figure 7 As shown in, the first locking mechanism includes a positioning tooth block 31 clamped on the upper end of the positioning gear 3. The upper end of the positioning tooth block 31 is fixedly connected with a pressing plate 32. The bottom of the left and right ends of the pressing plate 32 is inclined inward to form a pressing slope. The front and rear sides of the pressing plate 32 are symmetrically and fixedly connected with lifting seats 33. A through hole is formed through the upper end of the lifting seat 33 from top to bottom. A guiding column 34 is slidably inserted through the through hole from top to bottom. The lower end of the guiding column 34 is fixedly connected with the upper end of the concave support base 1; When the lifting seat 33 moves up and down, the through hole in the lifting seat 33 moves up and down along the guiding column 34, so that the lifting seat 33 can move up and down stably, and further the pressing plate 32 can drive the positioning tooth block 31 to move up and down stably; The upper end of the guiding column 34 is sequentially sleeved with an anti-detachment ring 35 and a positioning spring 36 from top to bottom. The anti-detachment ring 35 is fixedly connected with the upper end of the guiding column 34. The upper and lower ends of the positioning spring 36 are respectively abutted against the anti-detachment ring 35 and the lifting seat 33. The positioning spring 36 applies a downward elastic force to the lifting seat 33.

[0028] When there is no external force pushing the pressing plate 32, under the action of the elastic force of the positioning spring 36, the lifting seat 33 moves downward. The lifting seat 33 drives the positioning tooth block 31 to move downward through the pressing plate 32, so that the positioning tooth block 31 is clamped with the positioning gear 3, thereby locking the positioning gear 3; Since the positioning gear 3 is fixedly sleeved on the bidirectional transmission screw 2, the bidirectional transmission screw 2 and the positioning gear 3 rotate or stop synchronously. When the positioning gear 3 is locked, the bidirectional transmission screw 2 cannot rotate either. Furthermore, the clamping drive mechanism cannot drive the clamping portion 26 to move, preventing the clamping portion 26 from releasing the clamping of the load body 27, and ensuring that the clamping portion 26 can firmly clamp and fix the load body 27.

[0029] When the pressing plate 32 is squeezed upward by an external force, the pressing plate 32 drives the positioning tooth block 31 to separate from the positioning gear 3, thereby releasing the locking of the positioning gear 3, so that the bidirectional transmission screw 2 can rotate forward or backward at will; When the extrusion plate 32 moves upward, it drives the lifting seat 33 to move upward synchronously. The lifting seat 33 presses the positioning spring 36, causing the positioning spring 36 to maintain a downward pushing trend on the lifting seat 33.

[0030] Please refer to Figures 1 to 3 , the anti-falling mechanism includes a positioning frame 4 fixedly connected to the upper end of the concave support base 1. One side of the positioning frame 4 is in the same vertical plane as the side surface of the concave support base 1. A rotating arm 41 is rotatably mounted on the side surface of the positioning frame 4 through a hinge shaft. The lower end of the rotating arm 41 is designed to be bent outward. The bottom of the bent portion at the lower end of the rotating arm 41 is rotatably connected to a roller 42 through a pin shaft. The bent portions at the lower ends of the two symmetrically arranged rotating arms 41 are designed in a V-shaped pattern. A anti-falling support foot 43 is fixedly installed at the lower end of the rotating arm 41 on the side close to the concave support base 1. A round rod 44 is fixedly connected to the upper end of the rotating arm 41 on the side close to the concave support base 1. The front and rear ends of the transmission mechanism are respectively in contact with the upper ends of the two symmetrically arranged rotating arms 41 in the front and rear; Vertical plates 5 are symmetrically fixedly connected to the front and rear sides of the concave support base 1. The vertical plates 5 are in contact with the side surface of the rotating arm 41. A sector-shaped guide plate 54 and an arc-shaped rod 51 are fixedly connected to the side of the vertical plate 5 close to the rotating arm 41 in sequence from top to bottom. The sector-shaped guide plate 54 and the arc-shaped rod 51 penetrate through the rotating arm 41 up and down; A sector-shaped through groove and an arc-shaped hole are formed through the side surface of the rotating arm 41. The sector-shaped guide plate 54 penetrates through the sector-shaped through groove, and the sector-shaped guide plate 54 is slidably connected to the sector-shaped through groove. The arc-shaped rod 51 penetrates through the arc-shaped hole, and the arc-shaped rod 51 is slidably connected to the arc-shaped hole; A fixed ring 53 is fixedly sleeved on the upper end of the arc-shaped rod 51. A downward pressing spring 52 is sleeved on the arc-shaped rod 51.

[0031] The upper and lower ends of the downward pressing spring 52 are respectively abutted against the fixed ring 53 and the rotating arm 41. The two vertical plates 5 are arranged between the two symmetrically arranged rotating arms 41, and the two vertical plates 5 are respectively in contact with the sides of the two rotating arms 41 close to each other. The downward pressing spring 52 applies a downward elastic force to the rotating arm 41.

[0032] When the rotating arm 41 rotates upward or downward, the rotating arm 41 slides along the arc-shaped rod 51 and the sector-shaped guide plate 54, so that the rotating arm 41 can rotate stably. When the rotating arm 41 rotates, it rotates around the axis of the hinge shaft.

[0033] During the transportation of the load body 27 by the drone, one side of the rotating arm 41 approaches the vertical plate 5. At this time, the rotating arm 41 is vertically downward, and at the same time, the anti-falling support foot 43 at the lower end of the rotating arm 41 is below the load body 27; If the load body 27 falls downward, after the load body 27 falls downward for a certain distance, the lower end of the load body 27 contacts the upper end of the anti-fall support leg 43, and the anti-fall support leg 43 supports and positions the load body 27, so as to effectively prevent the load body 27 from continuing to fall downward and play a role in protecting the load body 27.

[0034] If the load body 27 contacts the upper end of the anti-fall support leg 43 after falling downward for a certain distance, the anti-fall support leg 43 supports and positions the load body 27. During the downward landing process of the drone, the roller 42 at the lower end of the rotating arm 41 first contacts the landing platform or the ground. At this time, the rotating arm 41 and the roller 42 play a supporting role until the drone stops and the landing is completed; When it is necessary to unload the load body 27 at this time, manually pull the pressing plate 32 upward to release the locking of the positioning gear 3 by the first locking mechanism, and then make the clamping driving mechanism drive the clamping part 26 to release the clamping of the load body 27. At this time, slowly push the load body 27 upward. Under the action of the gravity of the drone and the load structure, the rotating arm 41 rotates outward obliquely, and the roller 42 rolls along the landing platform or the ground until the rotating arm 41 opens to the maximum. At this time, the lower end of the support leg 16 contacts the landing platform or the ground, and the support leg 16 supports the concave support seat 1, thereby realizing the support of the drone; At this time, the drone can be manually moved upward, or automatically moved upward after the drone is started. The drone drives the load structure to move upward from the upper end of the load body 27 to complete the unloading of the load body 27.

[0035] If the load body 27 does not fall downward, when the drone continues to land, the roller 42 rolls along the landing platform or the ground until the rotating arm 41 opens to the maximum. At this time, the lower end of the support leg 16 contacts the landing platform or the ground, and the support leg 16 supports the concave support seat 1, thereby realizing the support of the drone; At this time, make the clamping driving mechanism drive the clamping part 26 to release the clamping of the load body 27, and then make the drone drive the load structure to move upward from the upper end of the load body 27 to complete the unloading of the load body 27.

[0036] When the load structure needs to clamp the load body 27, in the initial state, the two clamping parts 26 are separated from each other to the maximum distance; Make the drone drive the load structure to stop downward above the load body 27. At this time, the lower end of the rotating arm 41 inclines outward, the rotating arm 41 presses the downward compression spring 52, and at the same time, the clamping parts 26 are located on the left and right sides of the load body 27. Drive the two clamping parts 26 to approach each other through the clamping driving mechanism, so that the clamping parts 26 drive the anti-slip protection pads to clamp and fix the load body 27.

[0037] During transportation, the drone drives the load body 27 to move upward through the load structure, thereby transporting the load body 27. After the drone slowly takes off upward, under the action of the elastic force of the downward pressure spring 52, the rotating arm 41 rotates downward until the side surface of the rotating arm 41 contacts the side surface of the vertical plate 5. At this time, the anti-fall support foot 43 rotates to directly below the load body 27 and can support the load body 27 at any time, preventing the load body 27 from falling.

[0038] Please refer to Figures 3 to 5 As shown in FIGS. [], the transmission mechanism includes a T-shaped transmission plate 6 disposed between two symmetrically arranged front and rear rotating arms 41. The T-shaped transmission plate 6 is sleeved on the cross bar 15 and is slidably connected to the cross bar 15 in the left and right directions, so that the T-shaped transmission plate 6 can only slide left and right along the cross bar 15. The two T-shaped transmission plates 6 are symmetrically distributed on both ends of the extrusion plate 32. An extrusion groove 61 is formed on the side surface of the T-shaped transmission plate 6, and the extrusion groove 61 is sleeved on one end of the extrusion plate 32. The extrusion inclined surface at the end of the extrusion plate 32 is in sliding contact with the bottom of the extrusion groove 61. Transmission blocks 62 are symmetrically and fixedly connected to the front and rear ends of the T-shaped transmission plate 6. A transmission groove 63 is formed through the side of the transmission block 62 close to the rotating arm 41, and the transmission groove 63 is sleeved on the round bar 44, and the round bar 44 is slidably connected to the transmission groove 63 in the up and down directions.

[0039] When the lower end of the rotating arm 41 rotates outward and opens, the upper end of the rotating arm 41 rotates inward and obliquely. At this time, the upper end of the rotating arm 41 drives the round bar 44 to move inward and obliquely. The round bar 44 slides downward along the transmission groove 63 on the side surface of the transmission block 62. At the same time, the round bar 44 pushes the transmission block 62 to move inward, and the transmission block 62 drives the T-shaped transmission plate 6 to slide inward along the cross bar 15; At this time, the extrusion groove 61 on the side surface of the T-shaped transmission plate 6 moves toward the extrusion plate 32, and the bottom of the extrusion groove 61 slides along the extrusion inclined surface at the lower end of the extrusion plate 32, thereby pushing the extrusion plate 32 to move upward. The extrusion plate 32 drives the positioning tooth block 31 to move upward, so that the positioning tooth block 31 releases the locking of the positioning gear 3.

[0040] When the rotating arm 41 rotates downward, the upper end of the rotating arm 41 rotates outward. The round bar 44 at the upper end of the rotating arm 41 pushes the transmission block 62 to move outward. The transmission block 62 drives the T-shaped transmission plate 6 to slide outward along the cross bar 15, so that the T-shaped transmission plate 6 releases the push on the extrusion plate 32. Under the action of the elastic force of the positioning spring 36, the lifting seat 33 drives the extrusion plate 32 to move downward, and the extrusion plate 32 drives the positioning tooth block 31 to lock the positioning gear 3.

[0041] Please refer to Figure 6 and Figure 8, on the outer side of one side plate of the concave support base 1, a second locking mechanism for locking the clamping drive mechanism is installed, and one end of the second locking mechanism is connected to the rotating shaft at one end of the bidirectional transmission screw 2; The second locking mechanism includes a concave plate 7 fixedly installed on the outer side of one side plate of the concave support base 1. A circular groove is penetrated through the side of the concave plate 7, and a polygonal rod 71 is penetrated through the circular groove. One end of the polygonal rod 71 is fixedly connected to the outer end of the rotating shaft. The rotating shaft at one end of the bidirectional transmission screw 2 penetrates through the side plate of the concave support base 1, and the rotating shaft of the bidirectional transmission screw 2 drives the polygonal rod 71 to rotate synchronously. By rotating the polygonal rod 71, the polygonal rod 71 drives the bidirectional transmission screw 2 to rotate synchronously through the rotating shaft; One end of the polygonal rod 71 near the outside is sleeved with a limiting plate 72, a locking spring 73, an adjusting plate 74, a first annular crown gear 75, and a second annular crown gear 76 in sequence from outside to inside. The limiting plate 72 is fixedly connected to one end of the polygonal rod 71 near the outside. Neither the first annular crown gear 75 nor the second annular crown gear 76 contacts the polygonal rod 71. One end of the second annular crown gear 76 is rotatably connected to the circular groove. The adjusting plate 74 is fixedly connected to the first annular crown gear 75. The teeth of the first annular crown gear 75 and the teeth of the second annular crown gear 76 are engaged. A ratchet 77 is fixedly sleeved on the outside of the second annular crown gear 76. The ratchet 77 is arranged inside the concave plate 7, and the ratchet 77 is in rotational contact with the inner side wall of the concave plate 7 provided with the circular groove. An anti-rotation mechanism is installed on the inner side of the concave plate 7 on the side of the ratchet 77.

[0042] The side of the second annular crown gear 76 away from the teeth is in rotational contact with the concave support base 1. The two ends of the locking spring 73 respectively abut against the limiting plate 72 and the adjusting plate 74. A polygonal groove matching the polygonal rod 71 is penetrated through the side of the adjusting plate 74, and the polygonal groove is slidably connected to the polygonal rod 71 back and forth.

[0043] The anti-rotation mechanism includes a pawl 8 clamped on the side of the ratchet 77. The pawl 8 is rotatably connected to the concave plate 7 and the concave support base 1 through a pin shaft respectively. A return spring 81 is inserted between the side of the pawl 8 and the concave plate 7.

[0044] The return spring 81 exerts an elastic force on the pawl 8, so that the pawl 8 always maintains a tendency to be clamped with the ratchet 77, so that the ratchet 77 can only rotate forward and cannot rotate in the reverse direction.

[0045] When clamping and fixing the load body 27, by rotating the adjusting plate 74 clockwise, the adjusting plate 74 drives the first annular crown gear 75 to rotate. The first annular crown gear 75 drives the second annular crown gear 76 to rotate synchronously. The second annular crown gear 76 drives the ratchet wheel 77 to rotate. The ratchet wheel 77 pushes the pawl 8 away from the ratchet wheel 77, and at the same time the pawl 8 compresses the return spring 81. When the ratchet wheel 77 stops, under the action of the elastic force of the return spring 81, the pawl 8 is engaged with the ratchet wheel 77 to prevent the ratchet wheel 77 from rotating in the reverse direction, and thus the polygonal rod 71, the limiting plate 72, the adjusting plate 74, the first annular crown gear 75 and the second annular crown gear 76 cannot rotate in the reverse direction; When the adjusting plate 74 rotates clockwise, it drives the polygonal rod 71 to rotate clockwise. The polygonal rod 71 drives the bidirectional transmission screw rod 2 to rotate clockwise through the rotating shaft. The bidirectional transmission screw rod 2 drives the two I-shaped sliding sleeves 21 thereon to approach each other, so that the clamping part 26 drives the anti-slip protection pad to clamp and fix the load body 27.

[0046] Through the anti-rotation mechanism provided, the bidirectional transmission screw rod 2 cannot rotate in the reverse direction, and thus the clamping part 26 and the anti-slip protection pad can firmly clamp and fix the load body 27.

[0047] When it is necessary to reverse the bidirectional transmission screw rod 2 so that the clamping part 26 drives the anti-slip protection pad to loosen the clamping of the load body 27, first pull the adjusting plate 74 outward along the polygonal rod 71. The adjusting plate 74 compresses the locking spring 73. At the same time, the adjusting plate 74 drives the first annular crown gear 75 away from the second annular crown gear 76, so that the first annular crown gear 75 and the second annular crown gear 76 are separated, and the first annular crown gear 75 can rotate in the reverse direction; At this time, rotate the adjusting plate 74 counterclockwise. The adjusting plate 74 drives the polygonal rod 71 to rotate counterclockwise. The polygonal rod 71 drives the bidirectional transmission screw rod 2 to rotate counterclockwise through the rotating shaft. The bidirectional transmission screw rod 2 drives the two I-shaped sliding sleeves 21 thereon to move away from each other, so that the clamping part 26 drives the anti-slip protection pad to loosen the clamping of the load body 27.

[0048] After the adjustment is completed, release the adjusting plate 74. Under the action of the elastic force of the locking spring 73, the adjusting plate 74 moves close to the concave plate 7. The adjusting plate 74 drives the teeth of the first annular crown gear 75 to be engaged with the teeth of the second annular crown gear 76 to complete the reset.

[0049] Working principle: When it is necessary to clamp the load body 27, make the unmanned aerial vehicle drive the load structure to descend along the upper end of the load body 27, so that the load structure is sleeved on the load body 27, and at the same time make the clamping parts 26 be distributed on the left and right sides of the load body 27; During the process of the drone descending, the roller 42 at the lower end of the rotating arm 41 first contacts the ground or the landing platform. At this time, the drone continues to descend until it stops. The lower end of the rotating arm 41 tilts outward, and the upper end of the rotating arm 41 rotates inward. At this time, the round rod 44 pushes the transmission block 62 to move inward, and the transmission block 62 drives the T-shaped transmission plate 6 to slide inward along the cross bar 15; The bottom of the extrusion groove 61 on the side of the T-shaped transmission plate 6 slides along the extrusion inclined surface at the lower end of the extrusion plate 32, thereby pushing the extrusion plate 32 to move upward. The extrusion plate 32 drives the positioning tooth block 31 to move upward, so that the positioning tooth block 31 releases the locking of the positioning gear 3; At this time, rotate the forward adjustment plate 74. The adjustment plate 74 drives the first annular crown gear 75 to rotate. The first annular crown gear 75 drives the second annular crown gear 76 to rotate synchronously. The second annular crown gear 76 drives the ratchet wheel 77 to rotate. The ratchet wheel 77 pushes the pawl 8 to rotate away from the ratchet wheel 77. At the same time, the pawl 8 compresses the return spring 81; When the adjustment plate 74 rotates forward, it drives the polygonal rod 71 to rotate forward. The polygonal rod 71 drives the bidirectional transmission screw 2 to rotate forward through the rotating shaft. The bidirectional transmission screw 2 drives the two I-shaped sliding sleeves 21 on it to approach each other. The I-shaped sliding sleeve 21 drives the two T-shaped connecting plates 24 to approach each other through the movable plate 23, so that the clamping part 26 drives the anti-slip protection pad to clamp and fix the load body 27.

[0050] After clamping and fixing the load body 27, stop rotating the adjustment plate 74, so that the polygonal rod 71, the first annular crown gear 75, the second annular crown gear 76 and the ratchet wheel 77 stop rotating; When the ratchet wheel 77 stops, under the action of the elastic force of the return spring 81, the pawl 8 is engaged with the ratchet wheel 77 to prevent the ratchet wheel 77 from rotating in the reverse direction, and further prevent the polygonal rod 71, the limit plate 72, the adjustment plate 74, the first annular crown gear 75 and the second annular crown gear 76 from rotating in the reverse direction; Through the anti-rotation mechanism set, the bidirectional transmission screw 2 cannot rotate in the reverse direction, and further the clamping part 26 and the anti-slip protection pad can firmly clamp and fix the load body 27.

[0051] At this time, the drone drives the load body 27 to take off slowly upward through the load structure, so as to transport the load body 27; Under the action of the elastic force of the downward pressure spring 52, the rotating arm 41 rotates downward until the side surface of the rotating arm 41 contacts the side surface of the vertical plate 5. At this time, the anti-falling support foot 43 rotates to directly below the load body 27 and can support the load body 27 at any time, preventing the load body 27 from falling.

[0052] When the rotating arm 41 rotates downward, the upper end of the rotating arm 41 rotates outward, and the round rod 44 pushes the transmission block 62 to move outward, so that the T-shaped transmission plate 6 releases the push on the extrusion plate 32. Under the action of the elastic force of the positioning spring 36, the lifting seat 33 drives the extrusion plate 32 to move downward, and the extrusion plate 32 drives the positioning tooth block 31 to lock the positioning gear 3, thereby locking the clamping drive mechanism, and further ensuring the stability of the clamping of the load body 27 by the clamping part 26.

[0053] If the load body 27 falls downward, after the load body 27 falls a certain distance, the lower end of the load body 27 contacts the upper end of the anti-fall support foot 43, and the load body 27 is supported and positioned by the anti-fall support foot 43, so as to effectively prevent the load body 27 from continuing to fall downward and play a role in protecting the load body 27.

[0054] When it is necessary to unload the load body 27, if the load body 27 does not fall, at this time, the lower ends of the left and right symmetrical anti-fall mechanisms rotate outward and open, and at the same time, the anti-fall mechanisms drive the transmission mechanism to move closer to the first locking mechanism, so that the first locking mechanism releases the locking of the clamping drive mechanism; Pull the adjusting plate 74 outward along the polygonal rod 71, the adjusting plate 74 drives the first annular crown gear 75 away from the second annular crown gear 76. At this time, reverse-rotate the adjusting plate 74, the adjusting plate 74 drives the polygonal rod 71 to reverse-rotate, the polygonal rod 71 drives the bidirectional transmission screw 2 to reverse-rotate through the rotating shaft, and the bidirectional transmission screw 2 drives the two I-shaped sliding sleeves 21 on it to move away from each other, so that the clamping part 26 drives the anti-slip protection pad to release the clamping and fixing of the load body 27, complete the unloading of the load body 27, and then release the adjusting plate 74 to reset.

[0055] If the load body 27 falls, the roller 42 at the lower end of the rotating arm 41 first contacts the landing platform or the ground. At this time, the rotating arm 41 and the roller 42 play a supporting role until the drone stops and lands; At this time, when it is necessary to remove the load body 27, manually pull the extrusion plate 32 upward to release the locking of the positioning gear 3 by the first locking mechanism, then pull the adjusting plate 74 outward along the polygonal rod 71, and reverse-rotate the adjusting plate 74 to make the clamping drive mechanism drive the clamping part 26 to release the clamping of the load body 27. At this time, slowly push the load body 27 upward. Under the action of the gravity of the drone and the load structure, the rotating arm 41 rotates outward and obliquely, and the roller 42 rolls along the landing platform or the ground until the rotating arm 41 opens to the maximum. At this time, the lower end of the support leg 16 contacts the landing platform or the ground, and the support leg 16 supports the concave support seat 1, thereby realizing the support of the drone; At this time, the drone can be manually moved upward, or automatically moved upward after the drone is started. The drone drives the load structure to move upward from the upper end of the load body 27, completing the unloading of the load body 27.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A load structure for an unmanned aerial vehicle, comprising a concave support seat (1), wherein support legs (16) are symmetrically fixedly mounted on the left and right sides of the concave support seat (1), characterized in that: A clamping drive mechanism is installed on the inner side of the concave support seat (1), the opening of the concave support seat (1) is designed to face downward, T-shaped connecting plates (24) are symmetrically installed on the left and right sides of the clamping drive mechanism, and the lower ends of the two T-shaped connecting plates (24) are both detachably installed with clamping parts (26), and the opposite surfaces of the two symmetrical clamping parts (26) are fixedly connected with anti-skid protection pads, and the load body (27) is clamped between the two anti-skid protection pads; The upper end of the concave support seat (1) is provided with a first locking mechanism for automatically locking the clamping drive mechanism, and anti-falling mechanisms for protecting the load body (27) are symmetrically installed on both the front and rear sides of the concave support seat (1), and the upper end of the concave support seat (1) is symmetrically fixedly connected to an L-shaped mounting plate (14), and a cross bar (15) is fixedly connected between the two L-shaped mounting plates (14). A transmission mechanism for unlocking the first locking mechanism is symmetrically sleeved on the cross bar (15), and the two ends of the transmission mechanism are respectively connected to the two anti-falling mechanisms symmetrically in front and rear.

2. The load structure for an unmanned aerial vehicle according to claim 1, characterized in that: The clamping drive mechanism comprises a bidirectional transmission screw (2) rotatably mounted between two side plates of a concave support seat (1) via a rotating shaft, an I-shaped sliding sleeve (21) is symmetrically sleeved on the bidirectional transmission screw (2) in a front-to-back manner, the I-shaped sliding sleeve (21) is threadedly connected to the bidirectional transmission screw (2), and the left and right ends of each I-shaped sliding sleeve (21) are rotatably connected to a movable plate (23) via a circular shaft, and one end of the movable plate (23) away from the I-shaped sliding sleeve (21) is hinged to a T-shaped connecting plate (24) via a hinge.

3. The load structure for an unmanned aerial vehicle according to claim 2, characterized in that: The upper end of the concave support seat (1) is symmetrically provided with a first T-shaped slide groove (12) in front and back directions, and the upper end of the concave support seat (1) is symmetrically provided with a second T-shaped slide groove (13) on both sides of the left and right sides of the two first T-shaped slide grooves (12). The upper end of the I-shaped sliding sleeve (21) is fixedly provided with a first T-shaped block (22), and the first T-shaped block (22) is slidably connected to the adjacent first T-shaped slide groove (12) in front and back directions. The upper end of the T-shaped connecting plate (24) is symmetrically fixedly provided with a second T-shaped block (25), and the second T-shaped block (25) is slidably connected to the second T-shaped slide groove (13) in the left and right directions. A through slot (11) is provided at the upper end of the concave support seat (1) between two first T-shaped slide slots (12) that are symmetrical in front and back, a positioning gear (3) is fixedly sleeved at the middle position of the bidirectional transmission screw (2), the positioning gear (3) is engaged with a first locking mechanism, and the first locking mechanism is mounted at the upper end of the through slot (11).

4. The load structure for an unmanned aerial vehicle according to claim 3, characterized in that: The first locking mechanism comprises a positioning tooth block (31) clamped on the upper end of the positioning gear (3), the upper end of the positioning tooth block (31) is fixedly connected to an extrusion plate (32), the bottoms of the left and right ends of the extrusion plate (32) are provided with extrusion slopes inclined inwardly, the front and rear sides of the extrusion plate (32) are symmetrically fixedly connected to a lifting seat (33), the upper end of the lifting seat (33) is provided with a through hole extending from top to bottom, a guide column (34) is slidably inserted into the through hole from top to bottom, and the lower end of the guide column (34) is fixedly connected to the upper end of the concave support seat (1); The upper end of the guide column (34) is sleeved with an anti-slip ring (35) and a positioning spring (36) in sequence from top to bottom. The anti-slip ring (35) is fixedly connected to the upper end of the guide column (34). The upper and lower ends of the positioning spring (36) are respectively in contact with the anti-slip ring (35) and the lifting seat (33).

5. The load structure for an unmanned aerial vehicle according to claim 1, characterized in that: The anti-fall mechanism comprises a positioning frame (4) fixedly connected to the upper end of the concave support seat (1), one side of the positioning frame (4) and the side of the concave support seat (1) are in the same vertical plane, a rotating arm (41) is rotatably mounted on the side of the positioning frame (4) via a hinge shaft, the lower end of the rotating arm (41) is designed to be bent outwards, the bottom of the bent portion of the lower end of the rotating arm (41) is rotatably connected to a roller (42) via a pin shaft, an anti-fall support foot (43) is fixedly mounted on the lower end of the rotating arm (41) close to the concave support seat (1), and a round rod (44) is fixedly connected to the upper end of the rotating arm (41) close to the concave support seat (1), and the front and rear ends of the transmission mechanism are respectively in contact with the upper ends of the two front and rear symmetrical rotating arms (41); The front and rear sides of the concave support seat (1) are both symmetrically fixedly connected with vertical plates (5), the vertical plates (5) are in contact with the side of the rotating arm (41), and the side of the vertical plate (5) close to the rotating arm (41) is fixedly connected with a fan-shaped guide plate (54) and an arc-shaped rod (51) in sequence from top to bottom, and the fan-shaped guide plate (54) and the arc-shaped rod (51) are both passed through the rotating arm (41) from top to bottom; A fixing ring (53) is fixedly sleeved on the upper end of the arc-shaped rod (51), and a downward pressure spring (52) is sleeved on the arc-shaped rod (51).

6. The load structure for an unmanned aerial vehicle according to claim 5, characterized in that: The upper and lower ends of the downward pressure spring (52) are respectively in contact with the fixed ring (53) and the rotating arm (41); the two vertical plates (5) are arranged between the two symmetrical rotating arms (41); and the two vertical plates (5) are respectively in contact with the sides of the two rotating arms (41) that are close to each other.

7. The load structure for an unmanned aerial vehicle according to claim 5, characterized in that: The transmission mechanism comprises a T-shaped transmission plate (6) arranged between two front and rear symmetrical rotating arms (41), the T-shaped transmission plate (6) being sleeved on the cross bar (15), a side surface of the T-shaped transmission plate (6) being provided with an extrusion groove (61), the extrusion groove (61) being sleeved on one end of the extrusion plate (32), an extrusion inclined surface at the end of the extrusion plate (32) being in sliding contact with the bottom of the extrusion groove (61), front and rear ends of the T-shaped transmission plate (6) being symmetrically fixedly connected with transmission blocks (62), a side of the transmission block (62) close to the rotating arm (41) being provided with a transmission groove (63), the transmission groove (63) being sleeved on the round rod (44), and the round rod (44) being slidably connected to the transmission groove (63) up and down.

8. The load structure for an unmanned aerial vehicle according to claim 1, characterized in that: A second locking mechanism for locking the clamping drive mechanism is installed on the outer side surface of a side plate of the concave support seat (1), and one end of the second locking mechanism is connected to a rotating shaft at one end of the bidirectional transmission screw rod (2); The second locking mechanism comprises a concave plate (7) fixedly mounted on the outer side of a side plate of the concave support seat (1), a circular groove extending through the side of the concave plate (7), a polygonal rod (71) extending through the circular groove, and one end of the polygonal rod (71) fixedly connected to the outer end of the rotating shaft; The end of the polygonal rod (71) close to the outside is sleeved with a limit plate (72), a locking spring (73), an adjustment plate (74), a first annular crown gear (75) and a second annular crown gear (76) in sequence from the outside to the inside. The limit plate (72) is fixedly connected to the end of the polygonal rod (71) close to the outside. The first annular crown gear (75) and the second annular crown gear (76) are not in contact with the polygonal rod (71). One end of the second annular crown gear (76) rotates with the circular groove. The adjusting plate (74) is fixedly connected to the first annular crown gear (75), the teeth of the first annular crown gear (75) and the teeth of the second annular crown gear (76) are engaged, the outer side of the second annular crown gear (76) is fixedly sleeved with a ratchet (77), the ratchet (77) is arranged on the inner side of the concave plate (7), the ratchet (77) is in rotational contact with the inner side wall of the concave plate (7) having a circular groove, and an anti-rotation mechanism is installed on the inner side of the concave plate (7) on the side of the ratchet (77).

9. The load structure for an unmanned aerial vehicle according to claim 8, characterized in that: The side of the second annular crown gear (76) away from the teeth is in rotational contact with the concave support seat (1), and the two ends of the locking spring (73) are respectively in contact with the limit plate (72) and the adjustment plate (74), and a polygonal groove matching the polygonal rod (71) is formed through the side surface of the adjustment plate (74), and the polygonal groove is connected to the polygonal rod (71) in a forward and backward sliding manner.

10. The load structure for an unmanned aerial vehicle according to claim 8, characterized in that: The anti-rotation mechanism comprises a pawl (8) clamped on the side of the ratchet (77); the pawl (8) is rotatably connected to the concave plate (7) and the concave support seat (1) via a pin, and a return spring (81) is inserted between the side of the pawl (8) and the concave plate (7).

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