Unmanned aerial vehicle protection structure

Abstract

The invention discloses an unmanned aerial vehicle protection structure, and belongs to the technical field of unmanned aerial vehicles, the unmanned aerial vehicle protection structure comprises a rack and supporting rods hinged to the two sides of the rack, the bottom ends of the supporting rods are hinged to supporting plates, the rack is provided with a water tank, and the inner sides of the supporting plates are elastically provided with pulling plates; a plurality of connecting plates are arranged between the pulling plates on the two sides of the bottom of the rack; through cooperation of the connecting plates, the connecting plates can be connected into a whole when falling to some wet and soft land, so that the machine frame can stably fall, and when rising, every two adjacent connecting plates are in a rotatable state, so that the connecting plates can be lifted one by one from inside to outside, and the working efficiency of the machine frame is improved. According to the unmanned aerial vehicle, the multiple connecting plates are arranged, so that the suction force between the connecting plates and the ground can be reduced, the unmanned aerial vehicle can stably rise, the multiple connecting plates can be kept in an inverted-V-shaped state in some areas with good landing conditions, and at the moment, the rack can be stably supported through the supporting rods.

Description

Technical Field

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

[0002] Plant protection drones are unmanned aerial vehicles mainly used for agricultural and forestry plant protection operations. They are mainly composed of a spraying device and an aircraft body. The emergence of plant protection drones has greatly improved the efficiency of operations such as pesticide spraying and seed sowing, and reduced labor costs.

[0003] Chinese patent CN214608034U discloses a landing protection device for a plant protection UAV. The opening angle of the buffer column is adjusted by pulling the adjustment rod through a connecting rod, so as to increase the contact range between the UAV and the ground to achieve a smooth landing effect, thereby avoiding damage to the UAV body caused by the vibration generated during landing, and achieving the purpose of improving operating efficiency and high protection performance.

[0004] The above device supports the UAV by setting a horizontal air cushion. Although it can be stably parked on some soft land, the adsorption force between the air cushion and the land is relatively large, which is not conducive to the rise of the UAV. In addition, on some hard land, the UAV cannot be stably parked in this way. In summary, the above device still has room for improvement.

[0005] Therefore, it is necessary to provide a drone protection structure to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a drone protection structure to solve the problem that the existing device proposed in the above background technology supports the drone by setting a horizontal air cushion. Although it can be stably parked on some soft land, the adsorption force between the air cushion and the land is large, which is not conducive to the lifting of the drone.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a drone protection structure, comprising a frame and support rods hinged at both sides of the frame, a support plate hinged at the bottom end of the support rod, a water tank installed on the frame, a pull plate elastically installed at the inner side of the support plate, a plurality of connecting plates are arranged between the pull plates at both sides of the bottom of the frame, and two adjacent connecting plates are hinged to each other; A plug-in assembly is installed on the connecting plate, a driving assembly that cooperates with the plug-in assembly is arranged on the supporting plate, a traction rope is arranged at the lower center of the frame, and the bottom end of the traction rope is fixedly connected to the connecting plate in the middle position. When the traction rope is loosened, the multiple connecting plates that were originally in an inverted V shape can move downward and transform into a horizontal state. During this process, the supporting plate can gradually approach the pulling plate, and the driving assembly arranged can drive multiple groups of plug-in assemblies to rotate, so that two adjacent connecting plates can be locked with each other through the plug-in assembly.

[0008] As a further solution of the present invention: vertical rods are arranged on both the front and rear sides of the bottom of the frame, the vertical rods pass through a connecting plate in the middle and slide with the connecting plate, and a support bar is elastically arranged on one end of the vertical rod passing through the connecting plate.

[0009] As a further solution of the present invention: the plug-in assembly includes a connecting shaft, a joint is fixedly provided at one end of the connecting shaft, the joint is arranged in a U shape, and a plug matching the joint is fixedly provided at the other end of the connecting shaft. Through holes are opened on the connecting plate at positions near the two ends, and the connecting shaft is rotatably installed in the through holes. When the plug on the connecting shaft is in a vertical state, the two adjacent connecting plates can rotate with each other, and when the plug on the connecting shaft is in a horizontal state, the two adjacent connecting plates can be locked.

[0010] As a further solution of the present invention: the driving assembly includes a rotating shaft rotatably arranged on the pull plate, the rotating shaft and the connecting shaft are in a colinear state, the end of the rotating shaft close to the connecting plate is fixedly provided with a mounting head that cooperates with the plug on the connecting shaft, the mounting head is set to be U-shaped, and a limiting shaft is installed on the end of the rotating shaft close to the support plate, the limiting shaft is connected to the rotating shaft through a one-way bearing, a circular hole that cooperates with the limiting shaft is opened on the support plate, a limiting block is fixedly arranged on the inner wall of the circular hole, and a limiting groove that slides with the limiting block is opened on the outer circumferential surface of the limiting shaft, and the limiting groove is inclined.

[0011] As a further solution of the present invention: a magnetic plate is fixedly embedded at the position near the two ends of the support bar, a card block is elastically installed at the bottom of the pull plate, and a plurality of card slots matching the card blocks are evenly opened on the outer circumferential surface of the rotating shaft. The number of the card slots is set to four and is evenly distributed in a circular array, and a magnetic block matching the magnetic plate is fixedly embedded on the bottom end surface of the card block, and the opposite side of the magnetic plate and the magnetic block has different magnetic poles. When the multiple connecting plates are in a horizontal state and fall above the support bar, the magnetic plate and the magnetic block can be aligned with each other.

[0012] As a further solution of the present invention: one end of the support plate away from the pulling plate is tilted upward to form a support portion.

[0013] As a further solution of the present invention: a connecting block is fixedly provided on the bottom end surface of the support rod, a base is provided on both sides of the connecting block, the base is fixedly connected to the support plate, and a round shaft is fixedly provided on both side surfaces of the connecting block, the round shaft passes through a preset mounting hole on the base and rotates with the base.

[0014] As a further solution of the present invention: a fixed frame is arranged above the vertical rod, the fixed frame is fixedly connected to the frame, the top end of the vertical rod extends into the fixed frame and slidably cooperates with the fixed frame, and a slider is fixedly arranged at one end of the vertical rod located in the fixed frame, the slider is made of iron, and an electromagnet is fixedly arranged at the top end inside the fixed frame.

[0015] As a further solution of the present invention: a reel is rotatably installed in the frame, and a motor drivingly connected to the reel is installed in the frame, and the top end of the traction rope passes through the frame and is fixedly connected to the reel.

[0016] As a further solution of the present invention: a fixing plate is fixedly provided on the top of the pull plate, and a guide rod is fixedly installed on the side of the fixing plate close to the support plate, a boss is fixedly provided on the top surface of the support plate, the guide rod passes through the boss and slidably cooperates with the boss, and a baffle is fixedly provided on one end of the guide rod passing through the boss, and a limiting spring is fixedly provided between the baffle and the boss.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: this device cooperates with multiple connecting plates, and when landing on some wet and soft land, the multiple connecting plates can be connected as a whole, so that the frame can land stably, and when rising, the adjacent two connecting plates are in a rotatable state, so that the multiple connecting plates can be lifted one by one from the inside to the outside, thereby reducing the suction between the connecting plates and the ground, so that the UAV can be lifted stably, and in some areas with better landing conditions, the multiple connecting plates can maintain an inverted V-shaped state. At this time, the frame can be stably supported by the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the rotating shaft and the limiting groove of the present invention; Figure 4 It is a schematic diagram of the connection structure between the support plate and the pull plate of the present invention; Figure 5 It is a schematic diagram of the structure of the mounting head and the hinge block of the present invention; Figure 6It is a schematic diagram of the cooperation between the card block and the card slot of the present invention; Figure 7 It is a schematic diagram of the butt connection of two connecting shafts of the present invention; Figure 8 It is a schematic diagram of the connector and plug structure of the present invention; Fig. 9 It is a schematic diagram of the connection structure between the vertical rod and the support bar of the present invention; Fig.10 It is a schematic diagram of the scroll structure of the present invention; Fig.11 is a schematic diagram of a plurality of connecting plates of the present invention being in an inverted V shape; Fig.12 is a schematic diagram of the connecting plate during the raising process of the frame of the present invention; Fig.13 It is a schematic diagram of the positioning block and the stop block structure of the present invention.

[0019] In the figure: 1, frame; 2, support rod; 3, support plate; 301, support part; 302, boss; 4, pull plate; 401, fixed plate; 402, guide rod; 5, connecting plate; 6, vertical rod; 601, stop rod; 7, traction rope; 8, water tank; 9, cantilever; 10, nozzle; 11, support bar; 1101, magnetic plate; 12, limit axis; 1201, limit groove; 13, connecting axis; 1301, joint; 1302, plug; 14, hinge block; 1401, protrusion; 15, limit block; 16, rotating shaft; 1601, mounting head; 1602, slot; 17, block; 18, fixed frame; 19, electromagnet; 20, round shaft; 2001, stop block; 21, base; 2101, positioning block; 22, reel. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 8 , Figure 11-Figure 12 As shown, a drone protection structure includes a frame 1 and support rods 2 hinged at both sides of the frame 1, wherein the support rods 2 are located below the frame 1, and a support plate 3 is hinged at one end of the support rod 2 away from the frame 1. Figure 1 As shown, a pull plate 4 is elastically installed at the inner side of the support plate 3, and a plurality of connecting plates 5 are arranged between the pull plates 4 on both sides below the frame 1, and two adjacent connecting plates 5 are hinged to each other so that the two adjacent connecting plates 5 can rotate relative to each other, and plug-in components are installed on the connecting plates 5, and the plug-in components between the two adjacent connecting plates 5 cooperate with each other; The support plate 3 is provided with a driving assembly that cooperates with the plug assembly. In the initial state, the plurality of connecting plates 5 are arranged in an inverted V shape. Fig.11As shown, at this time, the frame 1 can be supported by the support rod 2. In order to change the arrangement state of the multiple connecting plates 5, a traction rope 7 is provided at the center of the lower part of the frame 1 in this solution. The bottom end of the traction rope 7 is fixedly connected to the connecting plate 5 at the middle position. Specifically, when the traction rope 7 is loosened, the multiple connecting plates 5 originally in an inverted V shape can move downward and finally become horizontal. When the multiple connecting plates 5 are in a horizontal state, the frame 1 can be supported by the multiple connecting plates 5 arranged horizontally. When the frame 1 is supported in this way, the frame 1 can be stably parked on softer land such as some fields. Figure 1-Figure 2 As shown, vertical rods 6 are provided on both the front and rear sides of the bottom of the frame 1, and the vertical rods 6 pass through the connecting plate 5 in the middle and slide with the connecting plate 5, and one end of the vertical rod 6 passing through the connecting plate 5 is elastically provided with a support bar 11, and the support bar 11 can support multiple connecting plates 5 and support plates 3, so as to ensure that multiple connecting plates 5 can be in a horizontal state. In actual use, when multiple connecting plates 5 are in a horizontal state, the support plate 3 can gradually approach the pulling plate 4. In this process, the driving assembly can drive multiple groups of plug-in assemblies to rotate 90°. At this time, the plug-in assembly can prevent the adjacent two connecting plates 5 from rotating. In this state, multiple connecting plates 5 are connected into an integral structure, so that they can be stably placed on the ground. The frame 1 A water tank 8 is installed on the frame 1. During actual operation, after the solution is loaded into the water tank 8, the overall weight of the frame 1 will increase, thereby causing the support rod 2 to deflect outward relative to the frame 1. During this process, the support rod 2 can drive the support plate 3 to move in a direction away from the pull plate 4. Subsequently, when the frame 1 is raised, the pressure applied to the support rod 2 is reduced, allowing the support rod 2 to deflect inward, so that the support plate 3 can be close to the pull plate 4 again. According to the above description, when the support plate 3 moves in a direction close to the pull plate 4, the drive assembly can drive the plug-in assembly to rotate 90° again, so that the two adjacent connecting plates 5 can rotate with each other. Therefore, when the frame 1 is raised, the connecting plates 5 can be pulled up one by one from the outside to the inside through the cooperation between the support rod 2 and the support plate 3. Fig.12 As shown, in this way, when the connecting plate 5 is separated from the ground, the adsorption force between the connecting plate 5 and the ground can be reduced to the maximum extent, so that the frame 1 can take off more stably.

[0021] The plug assembly includes a connecting shaft 13, referring to Figure 7 As shown, a joint 1301 is fixedly provided at one end of the connecting shaft 13, and the joint 1301 is set in a U shape, and a plug 1302 matching with the joint 1301 is fixedly provided at the other end of the connecting shaft 13, and the plug 1302 is a horizontal plate-like structure, referring to Figure 8As shown, through holes are opened at positions near the two ends of the connecting plate 5, and the above-mentioned connecting shaft 13 is rotatably installed in the through hole through a tapered roller bearing, and in the initial state, the plug 1302 of the connecting shaft 13 on a certain connecting plate 5 is inserted into the joint 1301 of the connecting shaft 13 on another connecting plate 5, so that the two adjacent connecting shafts 13 can rotate synchronously. Specifically, when the plug 1302 on the connecting shaft 13 is in a vertical state, the two adjacent connecting plates 5 can rotate with each other, and when the plug 1302 on the connecting shaft 13 is in a horizontal state, the two adjacent connecting plates 5 can be locked (that is, the two adjacent connecting plates 5 cannot rotate with each other). In actual use, a rubber pad can be bonded to the inner wall of the through hole to improve the stability of the connecting shaft 13 inside the through hole.

[0022] The driving assembly includes a rotating shaft 16 disposed on the pull plate 4. The pull plate 4 is provided with a through groove along its width direction, and the rotating shaft 16 is rotatably installed in the through groove through a tapered roller bearing. The rotating shaft 16 and the connecting shaft 13 are in a colinear state. Figure 5 As shown, the end of the rotating shaft 16 close to the connecting plate 5 is fixedly provided with a mounting head 1601 matched with the plug 1302 on the connecting shaft 13. Similarly, referring to the connection mode of two adjacent connecting shafts 13, the mounting head 1601 as a whole also needs to be set to a U shape, and in the initial state, the plug 1302 on the connecting shaft 13 adjacent to the rotating shaft 16 is inserted into the mounting head 1601, so that the rotating shaft 16 can synchronously drive the connecting shaft 13 to rotate; Further, refer to Figure 6 As shown, the end of the rotating shaft 16 close to the support plate 3 is equipped with a limit shaft 12, and the limit shaft 12 is rotatably connected with the rotating shaft 16 through a one-way bearing. Through this structure, the limit shaft 12 can only drive the rotating shaft 16 to rotate in a single direction. Figure 3 , Figure 6 As shown, a circular hole matching with the limiting shaft 12 is opened on the support plate 3, and a limiting block 15 is fixedly arranged on the inner wall of the circular hole. A limiting groove 1201 matching with the limiting block 15 in a sliding manner is opened on the outer peripheral surface of the limiting shaft 12, and the limiting groove 1201 is inclined. In actual operation, when the support plate 3 gradually approaches the pull plate 4 and fits with the pull plate 4, the limiting block 15 can move from one end of the limiting groove 1201 to the other end of the limiting groove 1201. In this process, the limiting block 15 matches with the inclined limiting groove 1201 to drive the limiting shaft 12 and the rotating shaft 16 to rotate 90°, thereby driving the above-mentioned connecting shaft 13 to rotate 90°, so that the plug 1302 on the connecting shaft 13 is changed from a vertical state to a horizontal state, thereby locking the two adjacent connecting plates 5.

[0023] Combination Figure 2 , Figure 6As shown, magnetic plates 1101 are fixedly embedded near both ends of the support bar 11, a card block 17 is elastically installed on the bottom of the pull plate 4, and a plurality of card slots 1602 that cooperate with the card block 17 are evenly opened on the outer circumferential surface of the rotating shaft 16. In this scheme, the number of the card slots 1602 is set to four and is evenly distributed in a circular array. When the card block 17 is in a pop-up state and inserted into the card slot 1602, the rotating shaft 16 is in a locked state with the pull plate 4, and a magnetic block (not shown in the figure) that cooperates with the magnetic plate 1101 is fixedly embedded on the bottom end surface of the card block 17. The magnetic plate 1101 has different magnetic poles on the side opposite to the magnetic block. When the multiple connecting plates 5 are in a horizontal state and fall above the support bar 11, the magnetic plate 1101 and the magnetic block can be aligned with each other.

[0024] In the initial state, the connecting plate 5 in the middle position is driven to move upward by the traction rope 7, so that the multiple connecting plates 5 are in an inverted V-shaped state. At this time, the support plate 3 at the bottom end of the support rod 2 can support the frame 1. This support method is suitable for relatively hard ground. When the frame 1 can only land on some soft ground (such as wet land), the traction rope 7 can be released to allow the connecting plate 5 in the middle position to move downward. In this process, the multiple connecting plates 5 connected to each other can move downward to a horizontal state and fall on the support bar 11, so that the magnetic plate 1101 and the magnetic block are aligned with each other, and the card block 17 can be driven to move downward by the suction force between the magnetic plate 1101 and the magnetic block (of course, this is only one way to drive the card block 17 to move downward. In actual operation, the card block 17 can also be driven to move downward by installing an electromagnet on the support bar 11). When the top of the card block 17 moves out of the card slot 1602, the rotating shaft 16 is relative to the pulling The plate 4 can rotate. Due to the elastic fit between the support plate 3 and the pull plate 4, when the clamping block 17 is disengaged from the clamping slot 1602, the support plate 3 can move toward the direction close to the pull plate 4. At the same time, the limit block 15 will also slide along the limit slot 1201. The limit shaft 12 can be driven to rotate by the cooperation between the limit block 15 and the limit slot 1201. The limit shaft 12 can drive the rotating shaft 16 to rotate synchronously through the one-way bearing, and the rotating shaft 16 can drive multiple connecting shafts 13 to rotate. When the limit block 15 moves to the end of the limit slot 1201, it stops moving. At this time, the rotating shaft 16 drives the connecting shaft 13 to rotate 90°, so that the plug 1302 on the connecting shaft 13 rotates from a vertical state to a horizontal state, so that the two adjacent connecting plates 5 can be locked. When the rack 1 falls on soft ground, the multiple connecting plates 5 connected as a whole can stably support the rack 1, thereby minimizing the tilting of the rack 1. When the solution is added into the water tank 8, the overall weight of the frame 1 will increase, thereby being able to drive the frame 1 to move down a certain distance, and the support rod 2 will deflect outward accordingly. During this process, the support rod 2 will drive the support plate 3 at its bottom end to move in a direction away from the pull plate 4. Since the limit shaft 12 and the rotating shaft 16 are connected by a one-way bearing, the limit shaft 12 is in a state of self-rotation during the process of the support plate 3 moving away from the pull plate 4. When the limit block 15 moves to the end of the limit groove 1201 away from the pull plate 4, it stops moving. During the process of the drone rising, the pressure of the frame 1 on the support rod 2 will gradually decrease. At this time, the support plate 3 can gradually approach the pull plate 4 and reset. In this process, the cooperation between the limit block 15 and the limit groove 1201 can drive the rotating shaft 16 and the connecting shaft 13 to rotate 90° again, so that the plug 1302 on the connecting shaft 13 is changed from a vertical state to a vertical state, so that the two adjacent connecting plates 5 can rotate relative to each other. When the support plate 3 and the pull plate 4 are in contact and the frame 1 continues to rise, the support rod 2 can drive the support plate 3 and the pull plate 4 to move upward synchronously, so that the multiple connecting plates 5 are pulled up one by one from the inside to the outside through the pull plate 4. For details, refer to Fig.12 As shown, since the multiple connecting plates 5 leave the ground one by one in an upward deflection manner, the adsorption force between the connecting plates 5 and the ground will be greatly weakened, which is conducive to the drone rising more stably and can reduce the power consumption of the drone when taking off; When the frame 1 is raised, the connecting plate 5 in the middle position can be driven to move upward by the traction rope 7, so that the multiple connecting plates 5 can be reset to the inverted V-shaped state, and as the frame 1 is raised, the pulling plate 4 gradually moves away from the supporting bar 11, so that the block 17 can be reset and reinserted into the slot 1602, so that the rotating shaft 16 can be limited again.

[0025] In summary, this device cooperates with multiple connecting plates 5. When landing on some wet and soft land, the multiple connecting plates 5 can be connected as a whole, so that the frame 1 can land stably, and when rising, the adjacent connecting plates 5 are in a rotatable state, so that the multiple connecting plates 5 can be lifted one by one from the inside to the outside, thereby reducing the suction between the connecting plates 5 and the ground, so that the UAV can rise stably, and in some areas with better landing conditions, the multiple connecting plates 5 can maintain an inverted V-shaped state. At this time, the frame 1 can be stably supported by the support rod 2.

[0026] like Figure 1-Figure 3As shown, a cantilever 9 is installed on the frame 1, and a propeller is installed on the cantilever 9. A nozzle 10 is also installed on the outside of the frame 1 and below the cantilever 9. The liquid medicine in the water tank 8 can be sprayed out through the nozzle 10. Since it is a mature technical means in the field of drones, the specific structure and working principle are not described in detail here.

[0027] One end of the support plate 3 away from the pulling plate 4 is tilted upward to form a support portion 301 . When the connecting plate 5 maintains an inverted V-shaped state, the support portion 301 can be in a nearly horizontal state, thereby facilitating supporting the frame 1 through the support plate 3 .

[0028] The bottom end surface of the support rod 2 is fixedly provided with a connection block, and both sides of the connection block are provided with a base 21. Figure 1 As shown, the base 21 is fixedly connected to the support plate 3, and round shafts 20 are fixedly provided on both side surfaces of the connecting block. The round shaft 20 passes through a preset mounting hole on the base 21 and rotates with the base 21. Similarly, the top end of the support rod 2 can also be hinged to the frame 1 through the same structure.

[0029] A fixing frame 18 is disposed above the vertical rod 6, and the fixing frame 18 is fixedly connected to the frame 1. Figure 1-Figure 2 , Fig. 9 As shown, the top end of the vertical rod 6 extends into the fixed frame 18 and slides with it, and a slider is fixedly provided at one end of the vertical rod 6 located in the fixed frame 18, and the slider is made of iron, and an electromagnet 19 is fixedly provided at the top of the fixed frame 18. When the electromagnet 19 is in the energized state, it can drive the slider and the vertical rod 6 to move upward; Further, the support bar 11 is slidably arranged at the bottom end of the vertical rod 6. Specifically, a blocking rod 601 is fixedly arranged at the bottom end of the vertical rod 6. A notch is provided on the bottom surface of the support bar 11 near the center. A first spring is fixedly arranged between the top wall inside the notch and the blocking rod 601. The first spring can be sleeved on the outside of the vertical rod 6. The cross section of the blocking rod 601 can be stepped. This structure can prevent the support bar 11 from being separated from the vertical rod 6. In actual use, when multiple connecting plates 5 fall horizontally above the support bar 11, the block 17 separates from the slot 1602, so that the support plate 3 can gradually approach the pull plate 4. During this process, the pull plate 4 tends to move downward in the vertical direction following the support plate 3, thereby driving the support bar 11 to move downward relative to the vertical rod 6. This structure can avoid interference between the pull plate 4 and the support bar 11. In addition, during the lifting process of the frame 1, the electromagnet 19 can be in a de-energized state, so that the frame 1 can move upward independently relative to the vertical rod 6 and the support bar 11 within a certain period of time, thereby avoiding the support bar 11 driving the connecting plate 5 to move upward during the lifting process of the frame 1.

[0030] Reference Figure 3 As shown, the pull plate 4 is provided with a notch on one side close to the connecting plate 5 and on both sides of the connecting plate 5. The notch is semicircular, and a hinge block 14 is fixedly installed in the notch. The hinge blocks 14 between the pull plate 4 and the connecting plate 5 and the hinge blocks 14 between two adjacent connecting plates 5 are staggered on the vertical plane, and one of the two adjacent hinge blocks 14 is fixedly provided with a protrusion 1401. For details, refer to Figure 5 As shown, the protrusion 1401 extends to the adjacent hinge block 14 and is rotatably connected thereto. The above structure is only one implementation method for realizing the hinge between two adjacent connecting plates 5 and between the pull plate 4 and the connecting plate 5. In actual operation, it can also be realized by structures such as hinges.

[0031] Reference Figure 4 As shown, a fixing plate 401 is fixedly provided on the top of the pull plate 4, and a guide rod 402 is fixedly installed on one side of the fixing plate 401 close to the support plate 3, a boss 302 is fixedly provided on the top surface of the support plate 3, the guide rod 402 passes through the boss 302 and slidably cooperates with the boss 302, and a baffle is fixedly provided on one end of the guide rod 402 passing through the boss 302, and a limiting spring is fixedly provided between the baffle and the boss 302. Through this structure, elastic cooperation between the support plate 3 and the pull plate 4 can be achieved.

[0032] The pull plate 4 is provided with a mounting groove connected with the through groove, the bottom end of the mounting groove extends to the bottom surface of the pull plate 4, and a bottom plate is fixedly provided at the bottom end of the mounting groove, and a spring is fixedly provided between the bottom plate and the clamping block 17 to achieve elastic cooperation between the clamping block 17 and the pull plate 4.

[0033] Reference Figure 1-Figure 2 , Fig.10 As shown, in order to drive the traction rope 7 to move, in this solution, a reel 22 is rotatably installed in the frame 1, and a motor connected to the reel 22 is installed in the frame 1. The top end of the traction rope 7 passes through the frame 1 and is fixedly connected to the reel 22, and the traction rope 7 can slide relative to the frame 1. Through this structure, the traction rope 7 can be retracted and released.

[0034] Reference Fig.13 As shown, in actual use, an annular groove is opened on the inner wall of the base 21, and a positioning block 2101 is fixedly arranged on the inner wall of the annular groove, and a stopper 2001 is fixedly arranged on the outer peripheral wall of the circular shaft 20, and the stopper 2001 is in the annular groove. Through this structure, when the traction rope 7 is wound and drives the middle connecting plate 5 to move upward, when the positioning block 2101 contacts the stopper 2001, the support plate 3 can stop rotating relative to the support rod 2. Therefore, as the traction rope 7 continues to be wound, the pull plate 4 can be pulled by the traction rope 7, so that the pull plate 4 gradually moves away from the support plate 3 and resets.

Claims

1. A drone protection structure, comprising a frame and support rods hinged to both sides of the frame, support plates hinged to the bottom ends of the support rods, a water tank installed on the frame, characterized in that: A pull plate is elastically installed at the inner side of the support plate, and a plurality of connecting plates are arranged between the pull plates on both sides of the bottom of the frame, and two adjacent connecting plates are hinged to each other; A plug-in assembly is installed on the connecting plate, a driving assembly that cooperates with the plug-in assembly is arranged on the supporting plate, a traction rope is arranged at the lower center of the frame, and the bottom end of the traction rope is fixedly connected to the connecting plate in the middle position. When the traction rope is loosened, the multiple connecting plates that were originally in an inverted V shape can move downward and transform into a horizontal state. During this process, the supporting plate can gradually approach the pulling plate, and the driving assembly arranged can drive multiple groups of plug-in assemblies to rotate, so that two adjacent connecting plates can be locked with each other through the plug-in assembly.

2. The drone protection structure according to claim 1, characterized in that: The bottom of the frame is provided with vertical rods on both the front and rear sides. The vertical rods pass through a connecting plate in the middle and are slidably matched with the connecting plate. A support bar is elastically provided at one end of the vertical rods passing through the connecting plate.

3. The drone protection structure according to claim 2, characterized in that: The plug-in assembly includes a connecting shaft, a joint is fixedly provided at one end of the connecting shaft, the joint is arranged in a U shape, and a plug matching the joint is fixedly provided at the other end of the connecting shaft. Through holes are opened on the connecting plate at positions near the two ends, and the connecting shaft is rotatably installed in the through holes. When the plug on the connecting shaft is in a vertical state, the two adjacent connecting plates can rotate with each other, and when the plug on the connecting shaft is in a horizontal state, the two adjacent connecting plates can be locked.

4. The drone protection structure according to claim 3, characterized in that: The driving assembly includes a rotating shaft rotatably arranged on the pulling plate, the rotating shaft and the connecting shaft are in a colinear state, a mounting head is fixedly arranged at one end of the rotating shaft close to the connecting plate and matches with the plug on the connecting shaft, the mounting head is arranged in a U-shape, a limiting shaft is installed at one end of the rotating shaft close to the supporting plate, the limiting shaft is connected to the rotating shaft through a one-way bearing, a circular hole matching with the limiting shaft is opened on the supporting plate, a limiting block is fixedly arranged on the inner wall of the circular hole, a limiting groove is opened on the outer circumferential surface of the limiting shaft and slidably matches with the limiting block, and the limiting groove is arranged at an incline.

5. The drone protection structure according to claim 4, characterized in that: A magnetic plate is fixedly embedded at a position near both ends of the support bar, a card block is elastically installed at the bottom of the pull plate, and a plurality of card slots matching the card blocks are evenly opened on the outer circumferential surface of the rotating shaft. The number of the card slots is set to four and is evenly distributed in a circular array, and a magnetic block matching the magnetic plate is fixedly embedded on the bottom end surface of the card block, and the opposite side of the magnetic plate and the magnetic block has different magnetic poles. When the multiple connecting plates are in a horizontal state and fall above the support bar, the magnetic plate and the magnetic block can be aligned with each other.

6. The drone protection structure according to claim 1, characterized in that: One end of the support plate away from the pulling plate is inclined upward to form a support portion.

7. The drone protection structure according to claim 1, characterized in that: A connecting block is fixedly provided on the bottom end surface of the support rod, a base is provided on both sides of the connecting block, the base is fixedly connected to the support plate, and a round shaft is fixedly provided on both side surfaces of the connecting block, the round shaft passes through a preset mounting hole on the base and rotates with the base.

8. The drone protection structure according to claim 2, characterized in that: A fixed frame is arranged above the vertical rod, and the fixed frame is fixedly connected to the frame. The top end of the vertical rod extends into the fixed frame and slidably cooperates with the fixed frame. A slider is fixedly arranged at one end of the vertical rod located in the fixed frame, and the slider is made of iron. An electromagnet is fixedly arranged at the top end inside the fixed frame.

9. The drone protection structure according to claim 1, characterized in that: A reel is rotatably installed in the frame, and a motor drivingly connected to the reel is installed in the frame. The top end of the traction rope passes through the frame and is fixedly connected to the reel.

10. The drone protection structure according to claim 1, characterized in that: A fixing plate is fixedly provided on the top of the pulling plate, and a guide rod is fixedly installed on one side of the fixing plate close to the supporting plate, a boss is fixedly provided on the top surface of the supporting plate, the guide rod passes through the boss and slidably cooperates with the boss, and a baffle is fixedly provided on one end of the guide rod passing through the boss, and a limiting spring is fixedly provided between the baffle and the boss.

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