Unmanned aerial vehicle suitable for delivery of relief goods

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle suitable for delivery of relief goods, which comprises an unmanned aerial vehicle body, an undercarriage is fixedly arranged below the unmanned aerial vehicle body, and an air-drop device is detachably mounted in the middle of the undercarriage; the air-drop device comprises a supporting frame, and the supporting frame is horizontally installed between the undercarriages in a sliding mode. A positioning assembly is arranged on the side face, close to the supporting frame, of the unmanned aerial vehicle body and connected with the supporting frame in the vertical direction. A feeding port is formed in the vertical side of the supporting frame, a delivery port is formed in the bottom, away from the unmanned aerial vehicle body, of the supporting frame, a delivery door is rotationally arranged at the delivery port, and a locking assembly for locking the delivery door is arranged on the supporting frame. The air-drop device and the undercarriage are combined in a detachable mode, and the working efficiency of the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a UAV suitable for delivering rescue supplies. Background Art

[0002] Unmanned aerial vehicles, also known as "drones", are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices, or are operated completely or intermittently autonomously by on-board computers. Drones used for delivering relief supplies can deliver some relief supplies to disaster-stricken areas in order to provide timely material support to disaster victims.

[0003] Existing drones consist of a drone body, a landing gear mounted underneath, and arms and rotor blades mounted on top. Delivering relief supplies to a specific location requires specialized delivery drones; ordinary drones are not capable of performing these tasks. Furthermore, delivery drones are relatively large and time-consuming to assemble, resulting in relatively low efficiency. Summary of the Invention

[0004] (1) Technical problems solved In view of the shortcomings of the existing technology, the present invention provides a drone suitable for delivering rescue supplies, which improves the working efficiency of the drone by combining an airdrop device and a landing gear in a detachable manner.

[0005] (2) Technical solution To achieve the above-mentioned objectives, an embodiment of the present application provides a drone suitable for delivering rescue supplies, comprising a drone body, a landing gear fixedly arranged under the drone body, and an airdrop device detachably installed in the middle of the landing gear; the airdrop device comprises a support frame, and the support frame is horizontally slidably installed between the landing gear; a positioning assembly is provided on a side of the drone body close to the support frame, and the positioning assembly is connected to the support frame in a vertical direction; a feed port is formed on the vertical side of the support frame, and a delivery port is provided on the bottom of the support frame away from the drone body, a delivery door is rotatably provided at the delivery port, and a locking assembly for locking the delivery door is provided on the support frame.

[0006] Preferably, the delivery door includes a first door panel and a second door panel, and the first door panel and the second door panel are respectively rotatably connected to the two relatively parallel sides of the delivery port through a rotating shaft, and the first door panel and the second door panel can open or close the delivery port when they are rotated; the first door panel and the second door panel are integrally formed with a clamping block on both the two side edges perpendicular to the rotating shaft; the supporting frame and the two relatively parallel sides located in the delivery port are spaced apart and provided with clamping grooves, and the clamping grooves are located on the two side edges perpendicular to the rotating shaft, and when the first door panel and the second door panel are rotated to close the delivery port, the clamping block can be embedded in the clamping groove; the locking assembly locks the clamping block embedded in the clamping groove.

[0007] and a locking plate, wherein the locking plate is fixed to the outer wall of the locking plate and the locking plate is engaged with the locking plate and the locking plate is engaged with the locking plate when the locking plate is engaged.

[0008] Preferably, the landing gear includes a mounting frame and a support frame; the mounting frame is horizontally fixed to the lower side of the UAV body, and the support frame is vertically arranged and fixed on the support frame at intervals; support arms are fixedly installed on the side surfaces of the two support frames that are close to each other, and the support frame abuts against the upper sides of the two support arms; a limiting component is provided on the support arm for elastically limiting the bottom of the support frame.

[0009] Preferably, a mounting hole is provided on the support arm in the vertical direction, and the limit assembly can be detachably installed in the mounting hole; a limit hole is provided on a side of the support frame close to the support arm, and the limit hole cooperates with the limit assembly; the limit assembly includes a fixing sleeve, a limit rod and a first compression spring; the fixing sleeve is threadedly connected to the mounting hole, and a first limit ring is integrally formed at the end of the fixing sleeve away from the support frame; one end of the limit rod is located below the fixing sleeve, and the other end passes through the first limit ring and the fixing sleeve, and can be inserted into the limit hole. ; A first abutment ring and a second abutment ring are fixed on the limit rod at intervals, the first abutment ring is located at one end of the limit rod and below the fixed sleeve, and the outer diameter of the first abutment ring is larger than the inner diameter of the first limit ring; the second abutment ring is located in the middle of the limit rod and inside the fixed sleeve; the first compression spring is sleeved on the limit rod, and one end of the first compression spring abuts the first limit ring, and the other end abuts the second abutment ring; when the first abutment ring abuts the first limit ring, the other end of the limit rod can be inserted into the limit hole.

[0010] Preferably, the positioning assembly includes a positioning sleeve, a sliding sleeve and a second electric push rod; the positioning sleeve is fixedly connected to the mounting frame, one end of the positioning sleeve is located above the mounting frame, and the other end is located below the mounting frame; the sliding sleeve is slidably connected to the inside of the positioning sleeve; a mounting cavity is formed on a side of the drone body close to the mounting frame, the second electric push rod is fixed in the mounting cavity, the piston end of the second electric push rod is fixedly connected to the sliding sleeve, and the sliding sleeve is controlled to slide along the length direction of the positioning sleeve, and the lower end of the sliding sleeve can extend out of the positioning sleeve or completely enter the positioning sleeve; a positioning hole is opened at one end of the support frame close to the mounting frame, and when the limiting assembly limits the support frame, the positioning hole and the positioning sleeve are in concentric positions, and the sliding sleeve can enter the positioning hole when extended.

[0011] Preferably, the sliding sleeve and the piston end of the second electric push rod are fixedly connected by a connecting plate, and the connecting plates are symmetrically arranged in two pieces, and a gap is formed between the two connecting plates, and the interior of the sliding sleeve is communicated through the gap; an annular groove is formed on the sliding sleeve and on the pipe section that can enter the positioning hole, and a first annular electrode ring is fixedly arranged in the annular groove; a second electrode ring is fixedly arranged on the inner wall of the positioning hole, and when the sliding sleeve is inserted into the positioning hole, the first electrode ring and the second electrode ring are in electrical contact; a second limiting ring is integrally formed inside the sliding sleeve and at the end away from the second electric push rod, and a third limiting ring is integrally formed inside the sliding sleeve, and An electrode mounting plate and a second compression spring are provided in the sliding sleeve and between the second limiting ring and the third limiting ring; the electrode mounting plate is located at one end close to the second limiting ring, and the two ends of the second compression spring are fixedly connected to the electrode mounting plate and the third limiting ring, and the second compression spring is in a compressed state; an electrode column is fixed on the side of the electrode mounting plate away from the second compression spring, and the electrode column can extend out of the sliding sleeve under the action of the second compression spring; an electrode plate is provided at the bottom of the positioning hole, and when the sliding sleeve enters the positioning hole, the electrode column and the electrode plate are electrically contacted; the first electrode ring and the electrode column are respectively connected to the positive and negative poles of the drone power supply.

[0012] Preferably, a delivery box is provided in the support frame, and a hoisting mechanism is fixedly installed on the outer side of the support frame close to the drone body, and the hoisting mechanism includes a frame, a winding shaft, an isolation plate, a first rope and a second rope; the frame is fixed to the top of the support frame, and the isolation plate is fixedly installed on the frame, and the winding shaft is divided into two sections, and the first rope and the second rope are respectively wound on the winding shaft and on both sides of the isolation plate; two fixed pulleys are installed at intervals on the top of the support frame, and the other ends of the first rope and the second rope are respectively passed around a fixed pulley, and are detachably connected to the delivery box.

[0013] Preferably, two relatively parallel sides of the delivery box are respectively fixedly connected with V-shaped connecting rods, and are fixedly connected to the first rope and the second rope through the V-shaped connecting rods.

[0014] Preferably, a feed door is provided on the support frame.

[0015] (3) Beneficial effects The present invention provides a drone suitable for delivering rescue supplies, which has an airdrop device detachably installed in the middle of the landing gear. The drone can be used for reconnaissance or delivering supplies by means of quick disassembly. When supplies are not being delivered, the airdrop device can be conveniently removed, thereby increasing the drone's flight time. When supplies need to be delivered, it can be quickly assembled, thereby increasing the practicality of the drone and facilitating the airdrop of supplies by the drone. The present invention can limit and fix the support frame by means of positioning components and limiting components arranged on the upper and lower sides of the support frame. At the same time, the drone's power supply can be connected to the airdrop device, eliminating the need for additional power supply installation and reducing the drone's counterweight. Finally, the present invention can choose between airdropping or hoisting delivery when delivering rescue supplies through the delivery box and winch mechanism, so that the drone can adapt to multiple rescue situations, thereby improving the drone's work adaptability and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a UAV suitable for delivering rescue supplies according to the present invention; Figure 2 A schematic diagram highlighting the delivery door of the present invention; Figure 3 A cross-sectional view showing the limiting assembly and the positioning assembly of the present invention; Figure 4 The present invention highlights Figure 3 A magnified view of the structure in the middle; Figure 5 The present invention highlights Figure 3 A magnified view of the structure in middle B; Figure 6 A schematic diagram of the present invention highlighting the connection structure between the delivery door and the support frame; Figure 7 A schematic diagram of the present invention highlighting the locking assembly; Figure 8 A schematic diagram highlighting the delivery box and the hoisting mechanism of the present invention; Figure 9 A schematic diagram highlighting the hoisting mechanism of the present invention; Figure 10 Schematic diagram highlighting the V-shaped connecting rod of the present invention.

[0017] In the accompanying drawings: 100, UAV body; 110, mounting cavity; 200, landing gear; 210, mounting frame; 220, support frame; 230, support arm; 231, mounting hole; 300, support frame; 310, limiting hole; 320, positioning hole; 321, second electrode ring; 322, electrode plate; 330, feed door; 340, delivery port; 350, delivery door; 351, first door panel; 352, second door panel; 353, rotating shaft; 354, clamping block; 3541, locking slot; 360, locking assembly; 361, locking block; 362, first electric push rod; 363, positioning column; 370, clamping slot; 380, support block; 381, slide slot; 382, ​​positioning slot; 400, limiting assembly; 410, fixed Fixed sleeve; 411, first limiting ring; 420, limiting rod; 421, first abutting ring; 422, second abutting ring; 430, first compression spring; 500, positioning assembly; 510, positioning sleeve; 520, sliding sleeve; 521, annular groove; 522, second limiting ring; 523, third limiting ring; 530, second electric push rod; 540, connecting plate; 550, first electrode ring; 560, electrode mounting plate; 570, second compression spring; 580, electrode column; 600, delivery box; 700, hoisting mechanism; 710, frame; 720, winding shaft; 730, isolation plate; 740, first rope; 750, second rope; 760, motor; 770, fixed pulley; 780, V-shaped connecting rod. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] First embodiment The present invention provides a drone suitable for delivering relief supplies. Figures 1-8 The drone comprises a body 100, a landing gear 200 fixedly mounted below the body 100, and a removable airdrop device mounted in the middle of the landing gear 200. The drone can be quickly disassembled to perform reconnaissance or deliver supplies. When supplies are not being delivered, the airdrop device can be easily removed, extending the drone's flight time. When supplies need to be delivered, the device can be quickly reassembled, thereby increasing the drone's practicality and facilitating airdrops.

[0020] Specifically, the airdrop device includes a support frame 300, which is horizontally slidably installed between the landing gear 200; a positioning component 500 is provided on a side of the drone body 100 close to the support frame 300, and the positioning component 500 is connected to the support frame 300 in the vertical direction and limits the support frame 300 to prevent it from moving in the horizontal direction after being limited.

[0021] Among them, the landing gear 200 includes a mounting frame 210 and a support frame 220; the mounting frame 210 is horizontally fixed to the lower side of the drone body 100, and the support frame 220 is vertically arranged and fixed on the support frame 220 at intervals; during the take-off and landing process, the support frame 220 supports the ground.

[0022] Support arms 230 are fixedly mounted on the adjacent sides of the two support frames 220, and the support frame 300 abuts against the upper sides of the two support arms 230. A stopper assembly 400 is mounted on the support arms 230 to elastically limit the bottom of the support frame 300. During operation, the stopper assembly 400 and the positioning assembly 500 cooperate to limit and secure the support frame 300, maintaining a stable position.

[0023] A mounting hole 231 is provided on the support arm 230 in the vertical direction, and the limiting assembly 400 can be detachably installed in the mounting hole 231; a limiting hole 310 is provided on a side of the support frame 300 close to the support arm 230, and the limiting hole 310 cooperates with the limiting assembly 400.

[0024] Specifically, the limiting assembly 400 includes a fixing sleeve 410 , a limiting rod 420 and a first compression spring 430 .

[0025] The fixing sleeve 410 is threadedly connected to the mounting hole 231 , and a first limiting ring 411 is integrally formed at one end of the fixing sleeve 410 away from the supporting frame 300 .

[0026] One end of the limiting rod 420 is located below the fixed sleeve 410, and the other end passes through the first limiting ring 411 and the fixed sleeve 410 and can be inserted into the limiting hole 310. A first abutting ring 421 and a second abutting ring 422 are fixed to the limiting rod 420 at intervals. The first abutting ring 421 is located at one end of the limiting rod 420 and below the fixed sleeve 410. The outer diameter of the first abutting ring 421 is larger than the inner diameter of the first limiting ring 411. The second abutting ring 422 is located in the middle of the limiting rod 420 and is located inside the fixed sleeve 410.

[0027] A first compression spring 430 is sleeved onto the limiting rod 420, with one end of the first compression spring 430 abutting the first limiting ring 411 and the other end abutting the second abutting ring 422. When the first abutting ring 421 abuts the first limiting ring 411, the other end of the limiting rod 420 can be inserted into the limiting hole 310. Simultaneously, when the first abutting ring 421 is pulled downward, the end of the limiting rod 420 away from the first abutting ring 421 can fully enter the fixing sleeve 410. During installation, the end of the limiting rod 420 away from the first abutting ring 421 is controlled to enter the fixing sleeve 410, thereby controlling the movement of the support frame 300 along the length of the support arm 230. During the movement, the restriction on the limit rod 420 is released, so that the limit rod 420 abuts against the lower side of the support frame 300. During the movement, when the limit rod 420 is aligned with the limit hole 310, the limit rod 420 enters the limit hole 310 for limitation under the action of the first compression spring 430.

[0028] When the limiting rod 420 and the limiting hole 310 are engaged with each other, the position of the support frame 300 is initially fixed. At this time, the positioning assembly 500 fixes the upper end of the support frame 300 .

[0029] The positioning assembly 500 includes a positioning sleeve 510 , a sliding sleeve 520 and a second electric push rod 530 .

[0030] The positioning sleeve 510 is fixedly connected to the mounting frame 210 , with one end of the positioning sleeve 510 located above the mounting frame 210 and the other end located below the mounting frame 210 ; the sliding sleeve 520 is slidably connected to the interior of the positioning sleeve 510 .

[0031] A mounting cavity 110 is formed on a side of the drone body 100 near the mounting bracket 210. A second electric push rod 530 is fixed within the mounting cavity 110. The piston end of the second electric push rod 530 is fixedly connected to the sliding sleeve 520, and the sliding sleeve 520 is controlled to slide along the length of the positioning sleeve 510. The lower end of the sliding sleeve 520 can extend out of the positioning sleeve 510 or completely enter the positioning sleeve 510. When the sliding sleeve 520 extends downward from the positioning sleeve 510, it has a positioning effect on the support frame 300.

[0032] A positioning hole 320 is defined at one end of the support frame 300, near the mounting bracket 210. When the position-limiting assembly 400 is restraining the support frame 300, the positioning hole 320 and the positioning sleeve 510 are concentric, and the sliding sleeve 520, when extended, can enter the positioning hole 320. The cooperation between the sliding sleeve 520 and the positioning hole 320 positions the upper end of the support frame 300, thereby maintaining horizontal and vertical stability of the support frame 300.

[0033] In one embodiment, the sliding sleeve 520 and the piston end of the second electric push rod 530 are fixedly connected by a connecting plate 540. Two connecting plates 540 are symmetrically arranged, and a gap is formed between the two connecting plates 540, which connects to the interior of the sliding sleeve 520; during installation, the wires in the drone body 100 enter the interior of the sliding sleeve 520 through the gap.

[0034] An annular groove 521 is formed on the sliding sleeve 520 and on the pipe section that can enter the positioning hole 320. A first annular electrode ring 550 is fixedly arranged in the annular groove 521; a second electrode ring 321 is fixedly arranged on the inner wall of the positioning hole 320. When the sliding sleeve 520 is inserted into the positioning hole 320, the first electrode ring 550 and the second electrode ring 321 are in electrical contact.

[0035] A second retaining ring 522 is integrally formed within the sliding sleeve 520 at the end away from the second electric push rod 530. A third retaining ring 523 is integrally formed within the sliding sleeve 520. An electrode mounting plate 560 and a second compression spring 570 are disposed within the sliding sleeve 520, between the second and third retaining rings 522 and 523. The electrode mounting plate 560 is located near the end of the second retaining ring 522. The second compression spring 570 is fixedly connected to the electrode mounting plate 560 and the third retaining ring 523 at both ends, and the second compression spring 570 is in a compressed state. An electrode column 580 is fixed to the side of the electrode mounting plate 560 away from the second compression spring 570. The electrode column 580 is capable of extending out of the sliding sleeve 520 under the action of the second compression spring 570. An electrode plate 322 is located at the bottom of the positioning hole 320. When the sliding sleeve 520 enters the positioning hole 320, the second compression spring 570 acts to electrically connect the electrode column 580 to the electrode plate 322. The first electrode ring 550 and the electrode column 580 are connected to the positive and negative poles of the drone's power supply, respectively, via wires. The second electrode ring 321 and the electrode plate 322 at the other end are connected to various electrical components via wires to provide them with power.

[0036] A feed port is formed on the vertical side of the support frame 300. After installation, materials to be put into the support frame 300 are placed through the feed port. A feed door 330 is provided on the support frame 300, and the feed door 330 opens or closes the feed port.

[0037] A delivery port 340 is formed at the bottom of the support frame 300 away from the drone body 100 . A delivery door 350 is rotatably provided at the delivery port 340 . The delivery door 350 can open or close the delivery port 340 when it rotates.

[0038] A locking assembly 360 for locking the delivery door 350 is provided on the support frame 300. During operation, by controlling the locking assembly 360 to work, the delivery door 350 is controlled to be open. When the delivery door 350 is open, the materials in the support frame 300 can be delivered.

[0039] The delivery door 350 includes a first door panel 351 and a second door panel 352. The first door panel 351 and the second door panel 352 are rotatably connected to the two parallel sides of the delivery port 340 through a rotating shaft 353 respectively. When the first door panel 351 and the second door panel 352 rotate, the delivery port 340 can be opened or closed.

[0040] It should be noted that, in order to facilitate the installation of the locking assembly 360 , the length direction of the rotating shaft 353 is parallel to the length direction of the support arm 230 .

[0041] Attachment blocks 354 are integrally formed on both sides of the first and second door panels 351, 352, perpendicular to the rotation axis 353. Attachment slots 370 are spaced apart on two relatively parallel sides of the support frame 300, located within the delivery port 340. These slots 370 are located on either side of the perpendicular rotation axis 353. When the first and second door panels 351, 352 rotate to close the delivery port 340, the attachment blocks 354 engage with the attachment slots 370. A locking assembly 360 locks the attachment blocks 354 engaged with the attachment slots 370. By locking or releasing the attachment blocks 354, the first and second door panels 351, 352 are controlled to open the delivery port 340.

[0042] Specifically, the locking assembly 360 includes a locking block 361 and a first electric push rod 362 .

[0043] A support block 380 is formed on relatively parallel sides of the delivery port 340, between the two engaging grooves 370. A slide groove 381 is horizontally defined within the support block 380, connecting the two engaging grooves 370. A positioning groove 382 is defined on the support block 380, located on the upper sidewall of the slide groove 381. The length of the positioning groove 382 is parallel to the length of the rotation axis 353.

[0044] A horizontal locking groove 3541 is defined on a vertical side of the engaging block 354 close to the sliding groove 381 . When the engaging block 354 enters the engaging groove 370 , the locking groove 3541 is aligned with the sliding groove 381 .

[0045] A positioning post 363 is integrally formed in the middle of the locking block 361. The locking block 361 engages within the slide slot 381, and the positioning post 363 engages within the positioning slot 382. A first electric push rod 362 is fixed to the outside of the support frame 300, and the piston end of the first electric push rod 362 is connected to the locking block 361. When the piston end of the first electric push rod 362 extends or retracts, it drives the locking block 361 to move along the length of the rotating shaft 353.

[0046] Both ends of the locking block 361 protrude from the slide groove 381, and when the locking block 361 moves, the locking block 361 can be disengaged from or engaged with the locking groove 3541. To ensure that the locking block 361 can disengage from the locking groove 3541, the length of the locking groove 3541 should be smaller than the length of the slide groove 381 during design. This allows the locking block 361 to engage or disengage from the locking groove 3541 during sliding.

[0047] When working, when no materials are being delivered, the airdrop device can be omitted to reduce the load of the drone and increase the drone's flight time.

[0048] When an investment delivery is required, the aerial delivery device is first installed. The support frame 300 is inserted onto the support arm 230 and slid along the length of the support arm 230 until the lower portion is stopped by the stop assembly 400. The upper portion of the support frame 300 is then stopped by the positioning assembly 500. Finally, the support frame 300 is secured. After being secured, power is supplied to the various electrical components, and the locking assembly 360 controls the opening and closing of the first and second door panels 351, 352, thereby achieving the delivery operation.

[0049] Second embodiment See also Figure 9-10 A delivery box 600 is provided in the support frame 300 , and a hoisting mechanism 700 is fixedly installed on the outside of the support frame 300 close to the drone body 100 .

[0050] The hoisting mechanism 700 includes a frame 710 , a winding shaft 720 , an isolation plate 730 , a first rope 740 , and a second rope 750 .

[0051] The frame 710 is fixed to the top of the support frame 300. The isolation plate 730 is fixedly mounted on the frame 710 and divides the winding shaft 720 into two sections. The first rope 740 and the second rope 750 are respectively wound on the winding shaft 720 and on either side of the isolation plate 730. A motor 760 is installed outside the frame 710 to drive the winding shaft 720 to rotate.

[0052] Two fixed pulleys 770 are spaced apart at the top of the support frame 300. The other ends of the first and second ropes 740 and 750 are each passed around a fixed pulley 770 and removably connected to the delivery box 600. Specifically, two relatively parallel sides of the delivery box 600 are fixedly connected to V-shaped connecting rods 780, which are then fixedly connected to the first and second ropes 740 and 750 via the V-shaped connecting rods 780. This connection allows the delivery box 600 to enter and exit the delivery opening 340 relatively smoothly.

[0053] The present invention provides a drone suitable for delivering rescue supplies, which has an airdrop device detachably mounted in the middle of the landing gear 200. The drone can be quickly disassembled to perform reconnaissance or deliver supplies. When not delivering supplies, the airdrop device can be easily removed, increasing the drone's flight time. When supplies need to be delivered, the device can be quickly reassembled, thereby improving the drone's practicality and facilitating the airdrop of supplies. The present invention utilizes positioning assemblies 500 and limiting assemblies 400 disposed on the upper and lower sides of a support frame 300 to limit and secure the support frame 300. Furthermore, the drone's power supply can be connected to the airdrop device, eliminating the need for an additional power supply and reducing the drone's counterweight. Finally, the present invention utilizes a delivery box 600 and a hoisting mechanism 700 to deliver rescue supplies, allowing the drone to be delivered by either airdrop or hoisting, enabling it to adapt to multiple rescue situations and improving its operational adaptability and efficiency.

[0054] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "back" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0056] The above-described embodiments merely illustrate the implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A drone suitable for delivering rescue supplies, characterized in that: It comprises a drone body (100), a landing gear (200) is fixedly arranged below the drone body (100), and an airdrop device is detachably mounted in the middle of the landing gear (200); The airdrop device comprises a support frame (300), wherein the support frame (300) is horizontally slidably mounted between the landing gears (200); a positioning assembly (500) is provided on a side of the UAV body (100) close to the support frame (300), and the positioning assembly (500) is connected to the support frame (300) in a vertical direction; A feed port is formed on a vertical side of the support frame (300), a delivery port (340) is formed at the bottom of the support frame (300) away from the drone body (100), a delivery door (350) is rotatably provided at the delivery port (340), and a locking assembly (360) for locking the delivery door (350) is provided on the support frame (300).

2. The UAV suitable for delivering rescue supplies according to claim 1, characterized in that: The delivery door (350) includes a first door panel (351) and a second door panel (352). The first door panel (351) and the second door panel (352) are rotatably connected to two relatively parallel sides of the delivery opening (340) via a rotation shaft (353). The first door panel (351) and the second door panel (352) can open or close the delivery opening (340) when they rotate. Both sides of the first door panel (351) and the second door panel (352) perpendicular to the rotation axis (353) are integrally formed with a clamping block (354); The support frame (300) is provided with two relatively parallel sides located in the delivery opening (340) at intervals with engaging grooves (370), the engaging grooves (370) being located on two sides perpendicular to the rotation axis (353), and when the first door panel (351) and the second door panel (352) are rotated to close the delivery opening (340), the engaging block (354) can be engaged in the engaging grooves (370); The locking assembly (360) locks the clamping block (354) embedded in the clamping slot (370).

3. The UAV suitable for delivering rescue supplies according to claim 2, characterized in that: The locking assembly (360) includes a locking block (361) and a first electric push rod (362); A support block (380) is formed on relatively parallel sides of the delivery port (340) and between the two clamping grooves (370). A sliding groove (381) is provided in the support block (380) along a horizontal direction. The sliding groove (381) communicates with the two clamping grooves (370). The clamping block (354) is provided with a horizontal locking groove (3541) on a vertical side close to the sliding groove (381), and when the clamping block (354) enters the clamping groove (370), the locking groove (3541) and the sliding groove (381) are aligned; A positioning groove (382) is provided on the support block (380) and on the upper side wall of the slide groove (381), and the length direction of the positioning groove (382) is parallel to the length direction of the rotating shaft (353); A positioning column (363) is integrally formed in the middle of the locking block (361), the locking block (361) is embedded in the sliding groove (381), and the positioning column (363) is embedded in the positioning groove (382); The first electric push rod (362) is fixed to the outside of the support frame (300), and the piston end of the first electric push rod (362) is connected to the locking block (361) and drives the locking block (361) to move along the length direction of the rotating shaft (353); Both ends of the locking block (361) protrude from the sliding groove (381), and when the locking block (361) moves, the locking block (361) can be disengaged from or engaged in the locking groove (3541).

4. The UAV suitable for delivering rescue supplies according to claim 1, characterized in that: The landing gear (200) includes a mounting frame (210) and a support frame (220); The mounting frame (210) is horizontally fixed to the lower side of the drone body (100), and the support frame (220) is vertically arranged and fixed on the support frame (220) at intervals; A support arm (230) is fixedly mounted on a side surface of the two support frames (220) that is close to each other, and the support frame (300) abuts against the upper sides of the two support arms (230); A limiting component (400) for elastically limiting the bottom of the supporting frame (300) is provided on the supporting arm (230).

5. The UAV suitable for delivering rescue supplies according to claim 4, characterized in that: The support arm (230) is provided with a mounting hole (231) in a vertical direction, and the limiting assembly (400) is detachably mounted in the mounting hole (231); the support frame (300) is provided with a limiting hole (310) on a side surface close to the support arm (230), and the limiting hole (310) cooperates with the limiting assembly (400); The limiting assembly (400) comprises a fixed sleeve (410), a limiting rod (420) and a first compression spring (430); The fixing sleeve (410) is threadedly connected to the mounting hole (231), and a first limiting ring (411) is integrally formed at one end of the fixing sleeve (410) away from the support frame (300); One end of the limiting rod (420) is located below the fixing sleeve (410), and the other end passes through the first limiting ring (411) and the fixing sleeve (410), and can be inserted into the limiting hole (310); A first abutment ring (421) and a second abutment ring (422) are fixed to the limiting rod (420) at intervals, the first abutment ring (421) being located at one end of the limiting rod (420) and below the fixing sleeve (410), the outer diameter of the first abutment ring (421) being larger than the inner diameter of the first limiting ring (411); The second abutment ring (422) is located in the middle of the limiting rod (420) and inside the fixing sleeve (410); The first compression spring (430) is sleeved on the limiting rod (420), and one end of the first compression spring (430) abuts against the first limiting ring (411), and the other end abuts against the second abutting ring (422); when the first abutting ring (421) abuts against the first limiting ring (411), the other end of the limiting rod (420) can be inserted into the limiting hole (310).

6. The UAV suitable for delivering rescue supplies according to claim 4, characterized in that: The positioning assembly (500) comprises a positioning sleeve (510), a sliding sleeve (520) and a second electric push rod (530); The positioning sleeve (510) is fixedly connected to the mounting frame (210), one end of the positioning sleeve (510) is located above the mounting frame (210), and the other end is located below the mounting frame (210); the sliding sleeve (520) is slidably connected to the interior of the positioning sleeve (510); A mounting cavity (110) is formed on a side of the drone body (100) close to the mounting frame (210), and the second electric push rod (530) is fixed in the mounting cavity (110). The piston end of the second electric push rod (530) is fixedly connected to the sliding sleeve (520), and controls the sliding sleeve (520) to slide along the length direction of the positioning sleeve (510). The lower end of the sliding sleeve (520) can extend out of the positioning sleeve (510) or completely enter the positioning sleeve (510); A positioning hole (320) is provided at one end of the support frame (300) close to the mounting frame (210); when the limiting assembly (400) limits the support frame (300), the positioning hole (320) and the positioning sleeve (510) are in a concentric position, and the sliding sleeve (520) can enter the positioning hole (320) when extended.

7. The UAV suitable for delivering rescue supplies according to claim 6, characterized in that: The sliding sleeve (520) and the piston end of the second electric push rod (530) are fixedly connected via a connecting plate (540), and two connecting plates (540) are symmetrically provided. A gap is formed between the two connecting plates (540), and the interior of the sliding sleeve (520) is communicated through the gap; An annular groove (521) is formed on the sliding sleeve (520) and on the pipe section that can enter the positioning hole (320), and a first annular electrode ring (550) is fixedly arranged at the annular groove (521); a second electrode ring (321) is fixedly arranged on the inner wall of the positioning hole (320), and when the sliding sleeve (520) is inserted into the positioning hole (320), the first electrode ring (550) and the second electrode ring (321) are in electrical contact; A second limiting ring (522) is integrally formed inside the sliding sleeve (520) and at one end away from the second electric push rod (530); a third limiting ring (523) is integrally formed inside the sliding sleeve (520); and an electrode mounting plate (560) and a second compression spring (570) are provided inside the sliding sleeve (520) and between the second limiting ring (522) and the third limiting ring (523); The electrode mounting plate (560) is located at one end close to the second limiting ring (522), and two ends of the second compression spring (570) are respectively fixedly connected to the electrode mounting plate (560) and the third limiting ring (523), and the second compression spring (570) is in a compressed state; An electrode column (580) is fixed to a side of the electrode mounting plate (560) away from the second compression spring (570), and the electrode column (580) can extend out of the sliding sleeve (520) under the action of the second compression spring (570); An electrode plate (322) is provided at the bottom of the positioning hole (320), and when the sliding sleeve (520) enters the positioning hole (320), the electrode column (580) and the electrode plate (322) are in electrical contact; The first electrode ring (550) and the electrode column (580) are respectively connected to the positive electrode and the negative electrode of the drone power supply.

8. The UAV suitable for delivering rescue supplies according to claim 1, characterized in that: A delivery box (600) is provided in the support frame (300), and a hoisting mechanism (700) is fixedly installed on the outside of the support frame (300) close to the drone body (100). The hoisting mechanism (700) includes a frame (710), a winding shaft (720), an isolation plate (730), a first rope (740), and a second rope (750). The frame (710) is fixed to the top of the support frame (300), the isolation plate (730) is fixedly mounted on the frame (710) and divides the winding shaft (720) into two sections, and a first rope (740) and a second rope (750) are respectively wound on the winding shaft (720) and on both sides of the isolation plate (730); Two fixed pulleys (770) are installed at intervals on the top of the support frame (300), and the other ends of the first rope (740) and the second rope (750) are respectively passed around a fixed pulley (770) and are detachably connected to the delivery box (600).

9. The UAV suitable for delivering rescue supplies according to claim 8, characterized in that: Two relatively parallel sides of the delivery box (600) are respectively fixedly connected with V-shaped connecting rods (780), and are fixedly connected to the first rope (740) and the second rope (750) via the V-shaped connecting rods (780).

10. The UAV suitable for delivering rescue supplies according to claim 1, characterized in that: A feeding door (330) is provided on the supporting frame (300).

Images