UAV delivery device and delivery method

Abstract

The present invention discloses a drone delivery device and a delivery method, and belongs to the technical field of drone delivery devices, wherein the drone delivery device comprises a connecting tube connected to the drone, a plurality of connecting blocks are evenly arranged on the inner wall of the connecting tube, a parachute is installed on the connecting block, a material box is arranged below the connecting tube, a sleeve is fixedly arranged on the top of the material box, and a connecting rod is elastically assembled in the sleeve; through the cooperation between a disc and the connecting block, when the disc is inserted into the interior of the connecting tube, the disc can be locked with the corresponding connecting block, so that in the process of delivering the material, the parachute on the connecting block can ensure the stable falling of the material box, and according to the overall weight of the material box, the disc can be combined with different numbers of connecting blocks, thereby further improving the stability of the falling of the material box.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle delivery devices, and in particular to an unmanned aerial vehicle delivery device and a delivery method. Background Art

[0002] Drones can be used to airdrop supplies to areas that are inconvenient to reach by ground transportation. Currently, drones' onboard launchers include box-type, rope-type, and pin-type.

[0003] Chinese invention patent CN108750115B discloses a drone delivery device. The device has a simple overall structure, is easy to use, and is lightweight. It does not increase the load of the drone, so it can carry heavier materials. At the same time, it is easy to operate and can easily drop materials below without getting stuck, making the delivery of materials more convenient and quick.

[0004] The above-mentioned device releases materials by setting up an inclined bottom plate, but in actual use, if the materials do not have sufficient speed after reaching the bottom of the bottom plate due to the shaking of the drone, the materials may be deflected when moving out of the bottom plate, which results in the parachute connected to the materials not being effectively utilized, which is not conducive to the stable falling of the materials. In summary, the above-mentioned device still has room for improvement.

[0005] Therefore, it is necessary to provide a drone delivery device and delivery method to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a drone delivery device and delivery method to solve the problem that the existing device proposed in the above background technology delivers materials by setting an inclined bottom plate, but in actual use, if the speed at which the materials slide out along the bottom plate does not reach the specified speed, the materials may be deflected after moving out of the bottom plate, which results in the parachute connected to the materials not being effectively utilized, which is not conducive to the stable falling of the materials.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a drone delivery device, comprising a connecting tube connected to the drone, a plurality of connecting blocks are evenly arranged on the inner wall of the connecting tube, a parachute is installed on the connecting block, a material box is arranged below the connecting tube, a sleeve is fixedly arranged on the top of the material box, and a connecting rod is elastically assembled in the sleeve, a disc is fixedly arranged on the top of the connecting rod, the disc and the connecting block can be matched through a clamping assembly, and two adjacent connecting blocks can be connected through a plug-in assembly;

[0008] When the drone rises upward, the connecting tube can drive the disc to move upward, so that the connecting rod moves upward relative to the sleeve. During this process, the disc can be connected with one of the connecting blocks through the clamping assembly. When the distance that the disc drives the connecting rod to move upward relative to the sleeve increases, multiple connecting blocks can move downward synchronously with the disc through the plug-in assembly.

[0009] As a further solution of the present invention: the clamping assembly includes a pressure block elastically arranged on the outer circumferential wall of the disc, the number of the pressure blocks is set to two, a pressure head is slidably arranged at the center of the disc, both sides of the pressure head are set to inclined extrusion surfaces, a pressure rod is fixedly arranged at one end of the pressure block close to the pressure head, and the pressure rod extends to the extrusion surface at one end away from the pressure block, a traction rope is fixedly arranged between the inner bottom surface of the sleeve and the pressure head, and a groove matching the pressure block is opened on the inner arc surface of the connecting block.

[0010] As a further solution of the present invention: the plug-in assembly includes an insertion rod arranged at the connecting block and slidingly cooperated with the connecting block, the connecting block is provided with a penetrating arc groove along its length direction, the insertion rod is slidably arranged in the arc groove, a top block is fixedly arranged on the inner wall of the insertion rod, and an inclined surface is arranged on the end of the top block away from the insertion rod.

[0011] As a further solution of the present invention: a column is fixedly mounted on the top surface of the disc, a joint is integrally formed at the top end of the column, the outer side surface of the joint is an inclined conical surface, and a support plate matching the joint is arranged in the connecting tube.

[0012] As a further solution of the present invention: a sliding bar is elastically installed on the inner arc surface of the connecting block, and clamping blocks are elastically installed on the top and bottom surfaces of the sliding bar. An annular sliding groove is opened on the outer circumferential surface of the disc, and the cross-section of the sliding groove is set to be T-shaped. A magnet is slidably set on the outer arc surface of the connecting block, and a pull rope is fixedly set between the magnet and the sliding bar. A magnetic strip matching the magnet is fixedly embedded on the inner wall of the connecting tube, and the magnet has different magnetic poles on the side opposite to the magnetic strip.

[0013] As a further solution of the present invention: a plurality of positioning grooves are evenly arranged on the inner wall of the connecting tube, a positioning block matching the positioning groove is fixedly arranged on the outer arc surface of the connecting block, the cross-sections of the positioning groove and the positioning block are both set to be T-shaped, a protrusion is elastically installed on the surface opposite to the connecting block inside the positioning groove, the end of the protrusion close to the connecting block is a curved surface structure, a limiting block is elastically installed on the side of the positioning block away from the connecting block, the end of the limiting block away from the connecting block is set to a curved surface, a limiting ring is fixedly installed on the bottom surface of the connecting tube, a spiral limiting groove is arranged on the inner wall of the limiting ring, the limiting block matches the limiting groove, a plurality of guide grooves connected to the limiting groove are arranged on the inner wall of the limiting ring, the guide groove is located below the limiting groove and is vertical.

[0014] As a further solution of the present invention: the bottom surface of the connecting block and the side edge close to the inner side are arranged as inclined guide surfaces.

[0015] As a further solution of the present invention: the line connecting the two pressing blocks passes through the diameter of the disc.

[0016] As a further solution of the present invention: a tension spring is fixedly arranged between the connecting rod and the inner end surface of the sleeve.

[0017] A method for delivery using the above-mentioned drone delivery device includes the following steps: placing a material box below a connecting tube so that a disc is inserted between a plurality of connecting blocks; controlling the drone to rise so that a connecting rod moves upward relative to the sleeve, thereby prompting the disc to be plugged into a corresponding connecting block, and a plurality of adjacent connecting blocks can be connected through the provided plugging rod; releasing the material box so that the disc can synchronously drive a plurality of connecting blocks to move downward.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: this device cooperates with the disc and the connecting block. During the process of inserting the disc into the connecting cylinder, the disc can be locked with the corresponding connecting block, so that during the process of dropping materials, the parachute on the connecting block can ensure the stable fall of the material box, and according to the overall weight of the material box, the disc can be combined with different numbers of connecting blocks, thereby further improving the stability of the falling of the material box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the connecting cylinder and the limiting ring of the present invention;

[0022] Figure 3It is a schematic diagram of the cooperation between the disc and the connecting block of the present invention;

[0023] Figure 4 is a cross-sectional view of the disc and the connecting tube of the present invention;

[0024] Figure 5 The present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0025] Figure 6 The present invention Figure 5 A schematic diagram of the enlarged structure at B;

[0026] Figure 7 It is a schematic diagram of the top block and the slide bar structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the top block and the insertion rod structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the limit groove and the guide groove of the present invention;

[0029] Fig.10 It is a schematic diagram of the positioning groove and magnetic strip structure of the present invention;

[0030] Fig.11 It is a schematic diagram of the joint and column structure of the present invention.

[0031] In the figure: 1, connecting cylinder; 101, positioning groove; 2, limiting ring; 201, limiting groove; 2011, guide groove; 3, material box; 4, connecting rod; 401, guide strip; 5, sleeve; 6, connecting block; 601, positioning block; 6011, limiting block; 602, notch; 603, guide surface; 7, disc; 701, pressure block; 702, slide groove; 8, column; 801, joint; 9, support plate; 10, traction rope; 11, pressure head; 1101, extrusion surface; 12, pressure rod; 13, protrusion; 14, insertion rod; 15, magnet; 16, pull rope; 17, top block; 1701, inclined surface; 18, slide bar; 1801, card block; 19, magnetic strip; 20, shell; 21, partition. DETAILED DESCRIPTION

[0032] like Figure 1-Figure 7 As shown, a drone delivery device and delivery method include a connection tube 1 connected to the drone. Specifically, the connection tube 1 can be connected to the drone by bolts. A plurality of connection blocks 6 are evenly arranged on the inner wall of the connection tube 1. The connection blocks 6 are distributed in a ring array, and two adjacent connection blocks 6 are in contact with each other. When actually used, a parachute can be installed on the top of the connection block 6, so as to facilitate the delivery of goods.

[0033] A material box 3 for loading materials is provided below the connecting tube 1. A sleeve 5 is fixedly provided on the top of the material box 3, and a connecting rod 4 is elastically assembled in the sleeve 5. Specifically, a tension spring is fixedly provided between the connecting rod 4 and the inner end surface of the sleeve 5, and a disc 7 is fixedly provided on the top of the connecting rod 4. The disc 7 and the connecting block 6 can cooperate with each other through a clamping assembly, so that when the disc 7 moves downward relative to the connecting tube 1, it can drive the connecting block 6 to move downward synchronously. Two adjacent connecting blocks 6 can be connected by a plug-in assembly. In actual use, when the drone rises upward, the connecting tube 1 can drive the disc 7 to move upward, so that the connecting rod 4 moves upward relative to the sleeve 5. In this process, the disc 7 can be clamped with one of the connecting blocks 6 through the clamping assembly, and when the material is heavier, the distance that the connecting rod 4 moves upward relative to the sleeve 5 will increase. At this time, a plurality of connecting blocks 6 can be combined through the plug-in assembly, so that the material box 3 can be combined with more parachutes after being dropped, which is conducive to the stable landing of the material box 3.

[0034] like Figure 1-Figure 11 As shown, the clamping assembly includes a pressure block 701 elastically arranged at the outer peripheral wall of the disc 7, the number of the pressure blocks 701 is set to two, and the line connecting the two pressure blocks 701 passes through the diameter of the disc 7, and a pressure head 11 is slidably arranged at the center of the disc 7, and the pressure head 11 can move in the vertical direction relative to the disc 7, refer to Figure 4 As shown, both sides of the pressure head 11 are arranged as inclined extrusion surfaces 1101, and a pressure rod 12 is fixedly arranged at one end of the pressure block 701 close to the pressure head 11, and the pressure rod 12 can slide relative to the disc 7, and the pressure rod 12 extends to the extrusion surface 1101 at one end away from the pressure block 701;

[0035] Furthermore, a traction rope 10 is fixedly arranged between the inner bottom surface of the sleeve 5 and the pressure head 11, and the traction rope 10 passes through the disc 7 and the connecting rod 4 and slidably cooperates with the two. Through this structure, when the disc 7 drives the connecting rod 4 to move upward relative to the sleeve 5, the traction rope 10 can drive the pressure head 11 to move downward, so that the pressure block 701 is squeezed outward through the pressure rod 12;

[0036] Furthermore, refer to Figure 7 As shown, a notch 602 matching with the pressing block 701 is provided on the inner arc surface of the connecting block 6 . When the pressing block 701 is in a pop-up state and inserted into the notch 602 , the disc 7 can be snap-fitted with the connecting block 6 .

[0037] The plug-in assembly includes an insertion rod 14 which is arranged at the connecting block 6 and slidably cooperates with the connecting block 6. The connecting block 6 is provided with a penetrating arc groove along its length direction, and the insertion rod 14 is slidably arranged in the arc groove. A top block 17 is fixedly arranged on the inner wall of the insertion rod 14, and an inclined surface 1701 is arranged at one end of the top block 17 away from the insertion rod 14. When the pressure block 701 pops out and is inserted into the slot 602, the pressure block 701 and the inclined surface 1701 are squeezed to drive the insertion rod 14 to slide in the arc groove, thereby docking two adjacent connecting blocks 6.

[0038] In actual use, a column 8 is fixedly installed on the top surface of the disc 7, and a joint 801 is integrally formed on the top of the column 8. Figure 4 As shown, the outer side surface of the joint 801 is an inclined conical surface, and a support plate 9 matching the joint 801 is provided in the connecting tube 1. In specific operation, the material box 3 to be delivered is placed under the drone, and the disc 7 is inserted into the connecting tube 1 and placed on the inner side of multiple connecting blocks 6. When the joint 801 contacts the inner top wall of the connecting tube 1, the pressing block 701 on the disc 7 can be aligned with the notch 602 on the connecting block 6. Figure 8As shown, an inclined guide surface 603 can be provided on the bottom surface of the connecting block 6 and near the inner side edge. Through this structure, when the disc 7 is inserted into multiple connecting blocks 6, the pressing block 701 on the outside of the disc 7 can contact the guide surface 603, so that the pressing block 701 can be retracted into the disc 7, and when the pressing block 701 is aligned with the notch 602, the pressing block 701 can pop out and be inserted into the notch 602, so that the disc 7 and the corresponding connecting block 6 can be snapped together. As the drone rises, the support plate 9 cooperates with the joint 801. The disc 7 and the connecting rod 4 can be driven to move upward relative to the sleeve 5. In this process, the traction rope 10 can pull the pressure head 11 downward, and the pressure of the pressure head 11 on the pressure rod 12 can drive the pressure block 701 to gradually move outward relative to the disc 7, so that the pressure block 701 can be further inserted into the notch 602, and the pressure block 701 can be driven to move in the arc groove through the cooperation with the inclined surface 1701 on the top block 17. Specifically, when one end of the insertion rod 14 on a certain connecting block 6 moves out of the arc groove and is inserted into the arc groove on another connecting block 6, the insertion rod 14 can be driven to move in the arc groove. When the material box 3 is inside the arc groove, the two connecting blocks 6 can complete the docking. In this solution, a tension spring is installed between the connecting rod 4 and the sleeve 5. When the material box 3 is heavier as a whole, the expansion and contraction of the tension spring will increase. At this time, the distance that the connecting rod 4 moves relative to the sleeve 5 will increase, so that the distance that the pressure block 701 can be driven to move outward by the traction rope 10 increases. This results in the pressure block 701 and the top block 17 being able to push the insertion rod 14 to move a longer distance and push the adjacent push rod to move. At this time, the insertion rod 14 between the multiple connecting blocks 6 is connected to the arc groove. The cooperation can realize locking between multiple connecting blocks 6. Later, when the material box 3 needs to be dropped, the support plate 9 can be driven to gradually move in the direction away from the joint 801. When the support plate 9 and the joint 801 are completely staggered, the disc 7 can drive the multiple connecting blocks 6 that are plugged into each other to move downward. At this time, the stability of the falling materials can be maintained by multiple parachutes. Similarly, when the weight of the material box 3 is lighter, the number of connecting blocks 6 that can be combined with the disc 7 will be reduced. At this time, the stability of the falling material box 3 can be maintained by a smaller number of parachutes.

[0039] In summary, this device cooperates with the disc 7 and the connecting block 6. During the process of inserting the disc 7 into the connecting cylinder 1, the disc 7 can be locked with the corresponding connecting block 6, so that during the process of dropping materials, the parachute on the connecting block 6 can ensure the stable fall of the material box 3, and according to the overall weight of the material box 3, the disc 7 can be combined with different numbers of connecting blocks 6, thereby further improving the stability of the falling of the material box 3.

[0040] like Figure 1-Figure 10As shown, a slide bar 18 is elastically mounted on the inner arc surface of the connecting block 6, and the slide bar 18 is located below the notch 602. Blocks 1801 are elastically mounted on the top and bottom surfaces of the slide bar 18. An annular slide groove 702 is provided on the outer peripheral surface of the disc 7, and the cross section of the slide groove 702 is set to be T-shaped.

[0041] A magnet 15 is slidably provided on the outer curved surface of the connecting block 6, a pull rope 16 is fixedly provided between the magnet 15 and the slide bar 18, and a magnetic strip 19 matching the magnet 15 is fixedly embedded on the inner wall of the connecting tube 1, and the opposite sides of the magnet 15 and the magnetic strip 19 have different magnetic poles. Through this structure, when the disc 7 drives the corresponding connecting block 6 to move downward, the magnet 15 and the magnetic strip 19 will be staggered, so that the slide bar 18 can pop out and be inserted into the slide groove 702.

[0042] In order to position the connection block 6 in the connection tube 1, the present invention evenly opens a plurality of positioning grooves 101 on the inner wall of the connection tube 1, and a positioning block 601 matching the positioning groove 101 is fixedly arranged on the outer arc surface of the connection block 6, and the cross-sections of the positioning groove 101 and the positioning block 601 are both set to T-shaped, referring to Figure 1-Figure 5 , Fig.10 The protrusion 13 is elastically mounted on the surface of the positioning groove 101 opposite to the connecting block 6, and the end of the protrusion 13 close to the connecting block 6 is a curved surface structure. Through this structure, when the positioning block 601 is inside the positioning groove 101 and above the protrusion 13, the connection block 6 can be stably placed in the connecting tube 1 through the cooperation between the protrusion 13 and the positioning block 601, and when the support plate 9 and the joint 801 are staggered, the disc 7 can drive the connecting block 6 to move downward. In this process, the protrusion 13 can be compressed into the connecting tube 1 through the positioning block 601, so that the positioning block 601 can be moved out of the positioning groove 101;

[0043] Refer again Figure 5 As shown, the positioning block 601 is elastically mounted on one side away from the connecting block 6, and the end of the limiting block 6011 away from the connecting block 6 is also configured as an arc surface structure. Figure 2 , Fig. 9 As shown, a limiting ring 2 is fixedly installed on the bottom surface of the connecting tube 1, and a spiral limiting groove 201 is opened on the inner wall of the limiting ring 2. The above-mentioned limiting block 6011 cooperates with the limiting groove 201. In addition, a plurality of guide grooves 2011 connected to the limiting groove 201 are opened on the inner wall of the limiting ring 2, and the guide grooves 2011 are located below the limiting groove 201 and are vertical.

[0044] In actual use, as the support plate 9 gradually moves away from the joint 801, the disc 7 can drive the multiple connecting blocks 6 that are plugged into each other to move downward, and as the magnetic strip 19 and the magnet 15 stagger each other, the slide bar 18 can pop out and insert into the slide groove 702 on the outside of the disc 7, and the cooperation between the block 1801 and the slide groove 702 can prevent the slide bar 18 from moving out of the slide groove 702. Through this structure, the connecting block 6 can slide along its outer peripheral surface relative to the disc 7. When the positioning block 6 After the positioning block 601 is moved out of the positioning groove 101, the positioning block 601 will slide to the inner side of the limiting ring 2, so that the limiting block 6011 on the outer side of the positioning block 601 can pop out and be inserted into the limiting groove 201. The connecting block 6 that cooperates with the notch 602 through the pressing block 701 is in a locked state with the disc 7, so that the connecting block 6 will not rotate relative to the disc 7 due to the cooperation between the limiting block 6011 and the limiting groove 201. However, except for the connecting block 6 ( Fig. 9 Except for the part a marked in the figure, the other connecting blocks 6 ( Fig. 9 After the parts b and c marked in the figure slide down to the limit groove 201, the limit block 6011 cooperates with the limit groove 201 to drive the connecting block 6 to slide along the outer peripheral surface of the disk 7, according to Fig. 9 As shown, by setting the guide groove 2011, in a specific application, according to the distance from the pressing block 701 on the pressing plate, the connecting block 6 ( Fig. 9 The b component marked in the figure) will first overlap with the limiting groove 201, so that the connecting block 6 ( Fig. 9 The component b in the figure can drive the multiple connecting blocks 6 at the rear end thereof to move in a direction away from the pressing block 701, and when the connecting block 6 ( Fig. 9 When the disc 7 moves to the guide groove 2011, it moves downward along the guide groove 2011. At this time, as the disc 7 continues to move downward, the connecting block 6 ( Fig. 9 The c component marked in the figure) will overlap with the limiting groove 201, so that the limiting block 6011 cooperates with the limiting groove 201, so that the connecting block 6 ( Fig. 9 In summary, through this structure, during the downward movement of the disc 7, the multiple connecting blocks 6 combined with the outer side of the disc 7 can be dispersed along the outer circumferential surface of the disc 7, thereby avoiding the entanglement of two adjacent parachutes, which is conducive to the stable delivery of the material box 3.

[0045] like Figure 4-Figure 6As shown, a shell 20 is fixedly installed on the internal top wall of the connecting tube 1, and a cylinder is installed inside the shell 20. The telescopic end of the cylinder is fixedly connected to the support plate 9. The support plate 9 passes through the shell 20 and slides with the shell 20. This structure is conducive to controlling the support plate 9.

[0046] A strip groove is provided on the inner wall of the sleeve 5, and a guide strip 401 that slides with the strip groove is fixedly set on the outer wall of the connecting rod 4. A first mounting groove that slides with the pressure head 11 is provided on the disc 7. A through groove for the pressure rod 12 to slide is provided on the disc 7 along its diameter direction, and the through groove is connected with the above-mentioned first mounting groove. A first groove that slides with the pressure block 701 is provided on the outer circumferential surface of the disc 7, and a first spring is fixedly set between the inner end surface of the first groove and the pressure block 701.

[0047] A second groove is provided on the inner wall of the connecting tube 1 and the outer side surface of the positioning block 601, and the protrusion 13 and the limit block 6011 slide in the second groove respectively. A spring is fixedly provided between the inner end surface of the second groove on the positioning block 601 and the limit block 6011, and between the inner end surface of the second groove on the connecting tube 1 and the protrusion 13.

[0048] The connecting block 6 is provided with a through groove for installing the magnet 15 and the slide bar 18, and a partition 21 is fixedly arranged in the through groove. The pull rope 16 passes through the partition 21 and slides with it. A limit spring is fixedly arranged between the partition 21 and the slide bar 18, and the slide bar 18 can be popped out through this structure.

[0049] The slide bar 18 is provided with a second installation groove which is slidably matched with the block 1801 , and a second spring is fixedly arranged between the inner end surface of the second installation groove and the block 1801 . In actual use, the side of the block 1801 close to the disk 7 can be tilted.

[0050] Reference Figure 8 As shown, the connection block 6 is provided with a receiving groove connected to the arc groove, so that the top block 17 can slide in the receiving groove, the notch 602 is connected to the receiving groove, and a third spring is fixedly arranged between the top block 17 and the side wall of the receiving groove.

[0051] like Fig.10 As shown, the magnetic strip 19 is disposed between two adjacent positioning grooves 101 , and the inner wall of the magnetic strip 19 is flush with the inner wall of the connecting tube 1 .

Claims

1. A drone delivery device, comprising a connecting tube connected to the drone, a plurality of connecting blocks evenly arranged on the inner wall of the connecting tube, a parachute mounted on the connecting block, characterized in that: A material box is provided below the connecting cylinder, a sleeve is fixedly provided on the top of the material box, and a connecting rod is elastically installed in the sleeve, a disc is fixedly provided on the top of the connecting rod, the disc and the connecting block can be matched through a snap-fit ​​assembly, and two adjacent connecting blocks can be connected through a plug-in assembly; When the drone rises upward, the connecting cylinder can drive the disc to move upward, so that the connecting rod moves upward relative to the sleeve. During this process, the disc can be connected with one of the connecting blocks through the clamping assembly. When the disc drives the connecting rod to move upward relative to the sleeve, the multiple connecting blocks can move downward synchronously with the disc through the plug-in assembly. The clamping assembly includes a pressure block elastically arranged at the outer peripheral wall of the disc, the number of the pressure blocks is set to two, a pressure head is slidably arranged at the center of the disc, both sides of the pressure head are arranged as inclined extrusion surfaces, a pressure rod is fixedly arranged at one end of the pressure block close to the pressure head, and the pressure rod extends to the extrusion surface at one end away from the pressure block, a traction rope is fixedly arranged between the inner bottom surface of the sleeve and the pressure head, and a notch matching with the pressure block is opened on the inner arc surface of the connecting block; The plug assembly includes an insertion rod arranged at the connection block and slidably matched with the connection block, the connection block is provided with a penetrating arc groove along its length direction, the insertion rod is slidably arranged in the arc groove, a top block is fixedly arranged at the inner wall of the insertion rod, and an inclined surface is arranged at one end of the top block away from the insertion rod; A column is fixedly mounted on the top surface of the disc, a joint is integrally formed on the top of the column, the outer side surface of the joint is an inclined conical surface, and a support plate matched with the joint is arranged in the connecting tube.

2. The drone delivery device according to claim 1, characterized in that: A slide bar is elastically installed on the inner arc surface of the connecting block, and clamping blocks are elastically installed on the top and bottom surfaces of the slide bar. An annular slide groove is opened on the outer circumferential surface of the disc, and the cross-section of the slide groove is set to be T-shaped. A magnet is slidably set on the outer arc surface of the connecting block, and a pull rope is fixedly set between the magnet and the slide bar. A magnetic strip that matches the magnet is fixedly embedded on the inner wall of the connecting tube, and the magnet has different magnetic poles on the side opposite to the magnetic strip.

3. The drone delivery device according to claim 2, characterized in that: A plurality of positioning grooves are evenly arranged on the inner wall of the connecting tube, and a positioning block matching the positioning groove is fixedly arranged on the outer arc surface of the connecting block, the cross sections of the positioning groove and the positioning block are both set to be T-shaped, and a protrusion is elastically installed on the surface opposite to the connecting block inside the positioning groove, and the end of the protrusion close to the connecting block is a curved surface structure, and a limiting block is elastically installed on the side of the positioning block away from the connecting block, and the end of the limiting block away from the connecting block is set to an arc surface, and a limiting ring is fixedly installed on the bottom surface of the connecting tube, and a spiral limiting groove is arranged on the inner wall of the limiting ring, and the limiting block matches the limiting groove, and a plurality of guide grooves connected to the limiting groove are arranged on the inner wall of the limiting ring, and the guide groove is located below the limiting groove and is vertical.

4. The drone delivery device according to claim 1, characterized in that: The bottom surface of the connection block and the side edge close to the inner side are arranged as inclined guide surfaces.

5. The drone delivery device according to claim 1, characterized in that: The connecting line of the two pressing blocks passes through the diameter of the disc.

6. The drone delivery device according to claim 1, characterized in that: A tension spring is fixedly arranged between the connecting rod and the inner end surface of the sleeve.

7. A method for delivering using the drone delivery device as claimed in any one of claims 1 to 3, characterized in that: The method comprises the following steps: placing a material box below a connecting tube so that a disc is inserted between a plurality of connecting blocks; controlling the drone to rise so that a connecting rod moves upward relative to a sleeve, thereby prompting the disc to be plugged into a corresponding connecting block, and a plurality of adjacent connecting blocks can be connected through a set plugging rod; releasing the material box so that the disc can synchronously drive a plurality of connecting blocks to move downward.

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