An unmanned aerial vehicle protection structure

Abstract

The present invention discloses a drone protection structure, belonging to the technical field of drones, which includes a frame and support rods hinged to both sides of the frame. The bottom end of the support rod is hinged with a support plate. A water tank is installed on the frame. A pull plate is elastically installed at the inner side position of the support plate. A plurality of connecting plates are arranged between the pull plates on both sides of the bottom of the frame. Through the cooperation of the plurality of connecting plates arranged, when landing on some wet and soft ground, the plurality of connecting plates can be connected into 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 plurality of connecting plates can be lifted one by one from the inside to the outside, thereby reducing the suction force between the connecting plates and the ground, enabling the drone to rise stably. In some areas with better landing conditions, the plurality of connecting plates can maintain an inverted V shape. At this time, the frame can be stably supported by the support rods.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and particularly to a protection structure for an unmanned aerial vehicle. Background Art

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

[0003] Chinese Patent CN214608034U discloses a landing protection device for a plant protection unmanned aerial vehicle, which realizes adjusting the opening angle of a buffer column by pulling a regulating rod through a connecting rod, so as to achieve the effect of increasing the contact range between the unmanned aerial vehicle and the ground to achieve a stable landing, thereby avoiding damage to the unmanned aerial vehicle body caused by the vibration generated during the landing of the unmanned aerial vehicle, and achieving the purpose of improving the operation efficiency and high protection performance.

[0004] The above device supports the unmanned aerial vehicle by setting a horizontal air cushion. Although it can be stably parked on some soft lands, the adsorption force between the air cushion and the land is relatively large, which is not conducive to the lifting of the unmanned aerial vehicle. In addition, on some hard lands, the unmanned aerial vehicle 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 protection structure for an unmanned aerial vehicle to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a protection structure for an unmanned aerial vehicle to solve the problem that the existing device supports the unmanned aerial vehicle by setting a horizontal air cushion. Although it can be stably parked on some soft lands, the adsorption force between the air cushion and the land is relatively large, which is not conducive to the lifting of the unmanned aerial vehicle as mentioned in the above background art.

[0007] Based on the above idea, the present invention provides the following technical solution: A protection structure for an unmanned aerial vehicle, including a frame and support rods hinged to both sides of the frame. The bottom ends of the support rods are hinged with support plates. A water tank is installed on the frame. A pull plate is elastically installed at the inner side position 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 adjacent two connecting plates are hinged to each other;

[0008] A plug-in component is installed on the connecting plate, a driving component matched with the plug-in component is arranged on the support plate, a towing rope is arranged at the center of the lower part of the frame, and the bottom end of the towing rope is fixedly connected with the connecting plate at the middle position. When the towing rope is loosened, multiple connecting plates originally in an inverted V shape can move downward and turn into a horizontal state. During this process, the support plate can gradually approach the pulling plate, and the driving component can drive multiple groups of plug-in components to rotate through the arrangement, so that adjacent two connecting plates can be locked through the plug-in components.

[0009] As a further scheme 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 the connecting plate at the middle position and are in sliding fit with this connecting plate, and a support strip is elastically arranged at one end of the vertical rod passing through the connecting plate.

[0010] As a further scheme of the present invention: the plug-in component includes a connecting shaft. One end of the connecting shaft is fixedly provided with a joint, the joint is set to be U-shaped, the other end of the connecting shaft is fixedly provided with a plug matched with the joint. Through holes are opened at positions near both ends on the connecting plate, and the connecting shaft is rotatably installed in the through holes. When the plug on the connecting shaft is in a vertical state, adjacent two connecting plates can rotate relative to each other. When the plug on the connecting shaft is in a horizontal state, adjacent two connecting plates can be locked.

[0011] As a further scheme of the present invention: the driving component includes a rotating shaft rotatably arranged on the pulling plate. The rotating shaft and the connecting shaft are collinear. One end of the rotating shaft close to the connecting plate is fixedly provided with a mounting head matched with the plug on the connecting shaft, the mounting head is set to be U-shaped. One end of the rotating shaft close to the support plate is provided with a limiting shaft, the limiting shaft is connected with the rotating shaft through a one-way bearing. A circular hole matched 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 slidably matched with the limiting block is opened on the outer circumferential surface of the limiting shaft, and the limiting groove is inclined.

[0012] As a further scheme of the present invention: magnetic plates are fixedly embedded at positions near both ends of the support strip. A clamping block is elastically installed at the bottom of the pulling plate. A plurality of clamping grooves matched with the clamping block are uniformly opened on the outer circumferential surface of the rotating shaft. The number of the clamping grooves is set to be four and they are uniformly distributed in a circular array. A magnetic block matched with the magnetic plate is fixedly embedded at the bottom end face of the clamping block. The opposite surfaces of the magnetic plate and the magnetic block have different magnetic poles. When multiple connecting plates are in a horizontal state and fall above the support strip, the magnetic plate and the magnetic block can be aligned with each other.

[0013] As a further scheme of the present invention: one end of the support plate far from the pulling plate is inclined upward to form a support part.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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

[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 three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the rotating shaft and the limiting groove of the present invention;

[0023] Figure 4 It is a schematic diagram of the connection structure between the support plate and the pull plate of the present invention;

[0024] Figure 5 Schematic diagram of the mounting head and hinge block structure of the present invention;

[0025] Figure 6 Schematic diagram of the cooperation between the clamping block and the clamping groove of the present invention;

[0026] Figure 7 Schematic diagram of the docking of two connecting shafts of the present invention;

[0027] Figure 8 Schematic diagram of the joint and plug structure of the present invention;

[0028] Figure 9 Schematic diagram of the connection structure between the vertical rod and the support bar of the present invention;

[0029] Figure 10 Schematic diagram of the reel structure of the present invention;

[0030] Figure 11 Schematic diagram of multiple connecting plates of the present invention being in an inverted V shape;

[0031] Figure 12 Schematic diagram of the connecting plate during the rising process of the frame of the present invention;

[0032] Figure 13 Schematic diagram of the positioning block and the stop block structure of the present invention.

[0033] In the figure: 1, frame; 2, support rod; 3, support plate; 301, support part; 302, convex platform; 4, pull plate; 401, fixing plate; 402, guide rod; 5, connecting plate; 6, vertical rod; 601, stop rod; 7, towing rope; 8, water tank; 9, cantilever; 10, spray pipe; 11, support bar; 1101, magnetic plate; 12, limiting shaft; 1201, limiting groove; 13, connecting shaft; 1301, joint; 1302, plug; 14, hinge block; 1401, protrusion; 15, limiting block; 16, rotating shaft; 1601, mounting head; 1602, clamping groove; 17, clamping block; 18, fixing frame; 19, electromagnet; 20, round shaft; 2001, stop block; 21, base; 2101, positioning block; 22, reel. Detailed implementation manner

[0034] As Figures 1-8 , Figures 11-12 shown, a drone protection structure includes a frame 1 and support rods 2 hinged to both sides of the frame 1. The support rods 2 are located at the lower position of the frame 1, and one end of the support rod 2 away from the frame 1 is hinged with a support plate 3. Refer to Figure 1As shown, a pull plate 4 is elastically installed at the inner side position of the support plate 3. A plurality of connecting plates 5 are arranged between the pull plates 4 on both sides below the frame 1. Adjacent two connecting plates 5 are hinged to each other, so that adjacent two connecting plates 5 can rotate relatively. And a plugging component is installed on the connecting plate 5, and the plugging components between adjacent two connecting plates 5 cooperate with each other;

[0035] A driving component matched with the plugging component is arranged on the support plate 3. In the initial state, a plurality of connecting plates 5 are arranged in an inverted V shape, specifically referring to Figure 11 As shown. At this time, the frame 1 can be supported by the support rod 2. In order to change the arrangement state of a plurality of connecting plates 5, a towing rope 7 is arranged at the center below the frame 1 in this solution. The bottom end of the towing rope 7 is fixedly connected to the connecting plate 5 at the middle position. Specifically, when the towing rope 7 is loosened, a plurality of connecting plates 5 originally in an inverted V shape can move downward and finally be in a horizontal state. When a plurality of connecting plates 5 are in a horizontal state, the frame 1 can be supported by the plurality of horizontally arranged connecting plates 5. When the frame 1 is supported in this way, the frame 1 can be stably parked on some soft lands such as fields. Combining Figures 1-2 As shown, vertical rods 6 are arranged on both the front and rear sides of the bottom of the frame 1. The vertical rods 6 pass through the connecting plate 5 at the middle position and are slidably matched with this connecting plate 5. And a support strip 11 is elastically arranged at one end of the vertical rod 6 passing through the connecting plate 5. The support strip 11 arranged can support a plurality of connecting plates 5 and the support plate 3, so as to ensure that a plurality of connecting plates 5 can be in a horizontal state. In actual use, when a plurality of connecting plates 5 are in a horizontal state, the support plate 3 can gradually approach the pull plate 4. During this process, the driving component arranged can drive a plurality of groups of plugging components to rotate 90°. At this time, the plugging components arranged can prevent adjacent two connecting plates 5 from rotating. In this state, a plurality of connecting plates 5 are connected into an integral structure, so that they can be stably placed on the land. A water tank 8 is installed on the frame 1. In actual operation, when a solution is filled into the water tank 8, the overall weight of the frame 1 will increase, so as to promote 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 away from the pull plate 4. Subsequently, when the frame 1 is lifted, the pressure applied to the support rod 2 is reduced, so that the support rod 2 can deflect inward, so that the support plate 3 can approach the pull plate 4 again. According to the above description, when the support plate 3 moves towards the pull plate 4, the driving component can drive the plugging component to rotate 90° again, so that adjacent two connecting plates 5 can rotate relative to each other. Therefore, when the frame 1 is lifted, the connecting plates 5 can be pulled up one by one from the outside to the inside through the cooperation of the support rod 2 and the support plate 3. Specifically as Figure 12As shown, in this way, when the connecting plate 5 is separated from the ground, the adsorption force between it and the ground can be minimized, so that the frame 1 can take off more stably.

[0036] The plug-in component includes a connecting shaft 13. Refer to Figure 7 As shown, one end of the connecting shaft 13 is fixedly provided with a joint 1301. The joint 1301 is set in a U shape, and the other end of the connecting shaft 13 is fixedly provided with a plug 1302 that cooperates with the joint 1301. The plug 1302 is a horizontal plate-like structure. Refer to Figure 8 As shown, through holes are opened through the positions near both ends of the connecting plate 5, and the above-mentioned connecting shaft 13 is rotatably installed in the through holes through tapered roller bearings. And in the initial state, the plug 1302 of the connecting shaft 13 on one connecting plate 5 is inserted into the joint 1301 of the connecting shaft 13 on another connecting plate 5, so that adjacent two connecting shafts 13 can rotate synchronously. Specifically, when the plug 1302 on the connecting shaft 13 is in a vertical state, adjacent two connecting plates 5 can rotate relative to each other, and when the plug 1302 on the connecting shaft 13 is in a horizontal state, adjacent two connecting plates 5 can be locked (that is: adjacent two connecting plates 5 cannot rotate relative to 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.

[0037] The driving component includes a rotating shaft 16 provided on the pulling plate 4. A through groove is opened along the width direction of the pulling plate 4, and the rotating shaft 16 is rotatably installed in the through groove through a tapered roller bearing. The rotating shaft 16 and the above-mentioned connecting shaft 13 are collinear. Refer to Figure 5 As shown, one end of the rotating shaft 16 close to the connecting plate 5 is fixedly provided with a mounting head 1601 that cooperates with the plug 1302 on the connecting shaft 13. Similarly, referring to the connection method of adjacent two connecting shafts 13, the whole mounting head 1601 also needs to be set in 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 drive the connecting shaft 13 to rotate synchronously;

[0038] Further, refer to Figure 6 As shown, a limiting shaft 12 is installed at one end of the rotating shaft 16 close to the support plate 3. The limiting shaft 12 is rotatably connected to the rotating shaft 16 through a one-way bearing. Through this structure, the limiting shaft 12 can only drive the rotating shaft 16 to rotate in a single direction. Combining Figure 3 、 Figure 6As shown, a round hole matching the limit shaft 12 is formed in the support plate 3, and a limit block 15 is fixedly arranged on the inner wall of the round hole. A limit groove 1201 slidably matching the limit block 15 is formed on the outer circumferential surface of the limit shaft 12. The limit 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 limit block 15 can move from one end of the limit groove 1201 to the other end position of the limit groove 1201. During this process, the cooperation between the limit block 15 and the inclined limit groove 1201 can drive the limit shaft 12 and the rotating shaft 16 to rotate 90°, and further drive the connecting shaft 13 to rotate 90°, so that the plug 1302 on the connecting shaft 13 changes from a vertical state to a horizontal state, thereby locking two adjacent connecting plates 5.

[0039] Combined with Figure 2 , Figure 6 As shown, magnetic plates 1101 are fixedly embedded at positions near both ends of the support bar 11. A clamping block 17 is elastically installed at the bottom of the pull plate 4, and a plurality of card slots 1602 matching the clamping block 17 are evenly formed on the outer circumferential surface of the rotating shaft 16. In this solution, the number of the card slots 1602 is set to four and is evenly distributed in a circular array. When the clamping block 17 is in a popped state and inserted into the card slot 1602, the rotating shaft 16 is in a locked state with the pull plate 4. A magnetic block (not shown in the figure) matching the magnetic plate 1101 is fixedly embedded at the bottom end face of the clamping block 17. The surfaces of the magnetic plate 1101 and the magnetic block facing each other have different magnetic poles. When a plurality of 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.

[0040] In the initial state, the connecting plate 5 at the middle position is driven to move upward by the towing rope 7, so that a plurality of connecting plates 5 are in an inverted V shape. 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 towing rope 7 can be released so that the connecting plate 5 at the middle position can move downward. During this process, the plurality of mutually connected connecting plates 5 can move downward to a horizontal state and land on the support bar 11, so that the magnetic plate 1101 and the magnetic block are aligned with each other. The suction force between the magnetic plate 1101 and the magnetic block can drive the latch 17 to move downward (of course, this is only one way to drive the latch 17 to move downward. In actual operation, an electromagnet can also be installed on the support bar 11 to drive the latch 17 to move downward). When the top end of the latch 17 moves out of the card slot 1602, the rotating shaft 16 can rotate relative to the pulling plate 4. Since the support plate 3 and the pulling plate 4 are elastically matched, when the latch 17 is disengaged from the card slot 1602, the support plate 3 can move towards the pulling plate 4. At the same time, the limiting block 15 will also slide along the limiting groove 1201. The cooperation between the limiting block 15 and the limiting groove 1201 can drive the limiting shaft 12 to rotate. The limiting shaft 12 can drive the rotating shaft 16 to rotate synchronously through a one-way bearing, and the rotating shaft 16 can drive a plurality of connecting shafts 13 to rotate. When the limiting block 15 moves to the end of the limiting groove 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 adjacent two connecting plates 5 can be locked. When the frame 1 lands on the soft land, the plurality of connecting plates 5 connected as a whole can stably support the frame 1, thus maximizing the avoidance of the inclination of the frame 1;

[0041] When a solution is added to the water tank 8, the overall weight of the frame 1 will increase, which can drive the frame 1 to move downward by 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 away from the pulling plate 4. Since the limiting shaft 12 and the rotating shaft 16 are connected by a one-way bearing, during the process of the support plate 3 moving away from the pulling plate 4, the limiting shaft 12 is in a state of self-rotation. When the limiting block 15 moves to the end of the limiting groove 1201 away from the pulling plate 4, it stops moving;

[0042] During the rising process of the drone, 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. During 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 changes from the vertical-horizontal state to the vertical state, so that the adjacent two connecting plates 5 can rotate relative to each other. When the support plate 3 fits with the pull plate 4 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 as to pull up the multiple connecting plates 5 one by one from the inside to the outside through the pull plate 4. Specifically, refer to Figure 12 As shown, since the multiple connecting plates 5 leave the ground one by one in an upward-deflected manner, the adsorption force between the connecting plates 5 and the ground will be greatly weakened, which is beneficial to the more stable rising of the drone and can reduce the power consumption when the drone takes off;

[0043] After the frame 1 rises, the connecting plate 5 at the middle position can be driven to move upward through the traction rope 7, so as to drive the multiple connecting plates 5 to reset to the inverted V-shaped state again. And as the frame 1 rises, the pull plate 4 gradually moves away from the support bar 11, so that the clamping block 17 can reset and re-insert into the card slot 1602, so as to re-limit the rotating shaft 16.

[0044] In summary, through the cooperation of the multiple connecting plates 5 provided in this device, 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 two 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, so as to reduce the suction force between the connecting plates 5 and the ground, making the drone rise stably. In some areas with better landing conditions, the multiple connecting plates 5 can maintain the inverted V-shaped state. At this time, the frame 1 can be stably supported by the support rod 2.

[0045] As Figures 1-3 As 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 outside the frame 1 and below the cantilever 9. The liquid medicine in the water tank 8 can be sprayed through the nozzle 10. Since it is a mature technical means in the field of drones, the specific structure and working principle will not be elaborated here.

[0046] One end of the support plate 3 away from the pull plate 4 is inclined upward to form a support portion 301. When the connecting plate 5 maintains the inverted V-shaped state, the support portion 301 can be in an approximately horizontal state, which is beneficial to supporting the frame 1 through the support plate 3.

[0047] A connecting block is fixedly arranged on the bottom end face of the support rod 2, and pedestals 21 are arranged on both sides of the connecting block. Refer to Figure 1 As shown, the pedestal 21 is fixedly connected to the support plate 3. Circular shafts 20 are fixedly arranged on both side faces of the connecting block. The circular shafts 20 pass through the preset mounting holes on the pedestal 21 and are rotationally matched with the pedestal 21. Similarly, the top end of the support rod 2 can also be hinged to the frame 1 through the same structure.

[0048] Above the vertical rod 6, there is a fixed frame 18, and the fixed frame 18 is fixedly connected to the frame 1. Refer to Figures 1-2 、 Figure 9 As shown, the top end of the vertical rod 6 extends into the fixed frame 18 and is slidably matched with it. And one end of the vertical rod 6 located inside the fixed frame 18 is fixedly provided with a slider. The slider is made of iron, and an electromagnet 19 is fixedly arranged at the top end inside the fixed frame 18. When the electromagnet 19 is powered on, it can drive the slider and the vertical rod 6 to move upward;

[0049] Furthermore, the above-mentioned support bar 11 is slidably arranged at the bottom end of the vertical rod 6. Specifically, a stop bar 601 is fixedly arranged at the bottom end of the vertical rod 6. A notch is formed at a position close to the center on the bottom surface of the support bar 11. A first spring is fixedly arranged between the top wall inside the notch and the stop bar 601. The first spring can be sleeved outside the vertical rod 6. The cross-section of the stop bar 601 can be stepped. Through this structure, the support bar 11 can be prevented from separating from the vertical rod 6;

[0050] During actual use, when multiple connecting plates 5 horizontally fall above the support bar 11, the clamping block 17 is separated from the card slot 1602, so that the support plate 3 can gradually approach the pull plate 4. During this process, the pull plate 4 has a downward movement tendency in the vertical direction following the support plate 3, thereby being able to drive the support bar 11 to move downward relative to the vertical rod 6. Through this structure, interference between the pull plate 4 and the support bar 11 can be avoided. In addition, during the rising process of the frame 1, the electromagnet 19 can be powered off, so that the frame 1 can move upward relative to the vertical rod 6 and the support bar 11 alone within a certain period of time, thereby avoiding the support bar 11 driving the connecting plate 5 to move upward during the rising process of the frame 1.

[0051] Refer to Figure 3 As shown, notches are formed at the side of the pull plate 4 close to the connecting plate 5 and at both sides of the connecting plate 5. The notches are semi-circular. Hinge blocks 14 are fixedly installed in the notches. The hinge blocks 14 between the pull plate 4 and the connecting plate 5 and the hinge blocks 14 between adjacent two connecting plates 5 are staggered with each other in the vertical plane. And a protrusion 1401 is fixedly arranged on one of the adjacent two hinge blocks 14. Specifically refer to Figure 5As 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.

[0052] 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.

[0053] 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.

[0054] Reference Figures 1-2 , Figure 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.

[0055] Reference Figure 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 assembly is installed on the connecting plate, a driving assembly matched with the plug 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 at the middle position. When the traction rope is loosened, the multiple connecting plates 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 can drive the multiple groups of plug assemblies to rotate, so that two adjacent connecting plates can be locked by the plug assembly. The bottom of the frame is provided with vertical rods on both the front and rear sides, the vertical rods pass through the connecting plate in the middle and are slidably matched with the connecting plate, and a support bar is elastically provided at one end of the vertical rods passing through the connecting plate; The plug 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, a plug matching the joint is fixedly provided at the other end of the connecting shaft, through holes are provided at positions near the two ends of the connecting plate, 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; 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 matched with a plug on the connecting shaft is fixedly arranged at one end of the rotating shaft close to the connecting plate, 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 matched 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 matched with the limiting block is opened on the outer peripheral surface of the limiting shaft, and the limiting groove is arranged obliquely; 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.

2. 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.

3. 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.

4. The drone protection structure according to claim 1, 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.

5. 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.

6. 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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