Pesticide spraying unmanned aerial vehicle with protection function

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to a pesticide spraying unmanned aerial vehicle with a protection function. Comprising an unmanned aerial vehicle, the unmanned aerial vehicle is fixedly connected with a fixing frame, the fixing frame is fixedly connected with a storage barrel, the fixing frame is provided with a driving motor and a water pump, the driving motor is a double-shaft motor, and the water pump communicates with the storage barrel through a middle pipe; the side, away from the unmanned aerial vehicle, of the fixing frame is fixedly connected with a liquid distribution pipe through a fixing piece, a spray head is installed on the liquid distribution pipe, and a blocking plate is arranged in the storage barrel. According to the unmanned aerial vehicle, pesticide in the storage barrel is blocked by the blocking plate, the disorder degree of the whole pesticide in the storage barrel is reduced, and the situation that the pesticide in the storage barrel is turned over due to the change of the flight path of the unmanned aerial vehicle, the pesticide becomes unstable, foam is generated, light components in the pesticide move upwards, and consequently the pesticide concentration is uneven during spraying is prevented; and the final killing effect is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a pesticide spraying unmanned aerial vehicle with a protective function. Background Art

[0002] With the advancement of modern agricultural production technology, more and more agricultural machinery has gradually emerged to reduce people's labor burden. Among them, the development of pesticide spraying drones plays a vital role in the normal growth of crops. Pesticide spraying drones refer to equipment that uses a combination of drone technology and pesticide spraying technology to replace manual spraying of pesticides. Pesticide spraying drones can accurately apply pesticides to crops based on preset flight routes, thereby improving work efficiency and reducing pesticide waste while reducing people's work intensity. Therefore, pesticide spraying drones are widely used.

[0003] During the operation of existing pesticide spraying drones, as the working time increases, the amount of pesticide in the medicine barrel on the drone gradually decreases. As the amount of pesticide decreases, the space above the medicine barrel becomes larger and larger, which increases the movable space for the pesticide. Therefore, when the angle of the flight path of the pesticide spraying drone changes, the pesticide will tumble due to inertia, making the pesticide unstable and prone to foaming, causing the lightweight components in the pesticide to move upward, reducing the uniformity of the components in the pesticide, thereby resulting in uneven pesticide concentration during spraying and reducing the final killing effect. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art in the above technical background, the present invention provides a pesticide spraying drone with a protection function.

[0005] The technical implementation scheme of the present invention is: a pesticide spraying drone with a protective function, comprising a drone, the drone is fixedly connected to a fixing frame, the fixing frame is fixedly connected to a storage barrel, the storage barrel is used to store liquid, the storage barrel is fixedly connected to the drone, one side of the storage barrel is threadedly connected with a twist cover, the fixing frame is installed with a driving motor and a water pump, the driving motor is a double-axis motor, the output shaft on one side of the driving motor is connected to the water pump, the water pump is connected to the storage barrel, one side of the fixing frame is fixedly connected with a liquid dispensing tube, the liquid dispensing tube is connected to the water pump, and is characterized in that: it also includes a buffer frame, the buffer frame is slidably connected to a side of the fixing frame away from the drone, the buffer frame is limitedly matched with the fixing frame, a first elastic element is fixedly connected between the buffer frame and the fixing frame, and a blocking plate is arranged in the storage barrel.

[0006] As an improvement of the above solution, the storage barrel is connected to the blocking plate in a limited sliding manner, so that the blocking plate can block the churning liquid in the storage barrel.

[0007] As an improvement of the above solution, there is a gap between the blocking plate and the storage barrel, so as to allow the liquid in the storage barrel to pass through the blocking plate.

[0008] As an improvement on the above scheme, it also includes a transmission mechanism for making the blocking plate and the storage barrel slide relative to each other, the transmission mechanism is arranged in the storage barrel, the transmission mechanism includes a screw, the screw is rotatably connected to the storage barrel, the output shaft on the other side of the drive motor is fixedly connected to the transmission shaft, the transmission shaft and the screw are connected by a pulley belt transmission, the side of the blocking plate close to the screw is slidably connected to a clamping member arranged in a mirror image, the clamping member is threadedly matched with the screw, and the side of the blocking plate close to the screw is provided with a limiting component for limiting the clamping members arranged in a mirror image.

[0009] As an improvement on the above scheme, the limit assembly includes a first limit piece arranged in a mirror image, the first limit pieces arranged in a mirror image are all slidably connected to the blocking plate, and the back sides of the first limit pieces arranged in a mirror image are provided with limit columns, the blocking plate is slidably connected with a second limit piece arranged in a mirror image on the side close to the lead screw, the second limit piece is in contact and extruded with the storage barrel, a limit groove is provided on the side of the second limit piece close to the adjacent first limit piece, and the limit groove is limitedly matched with the adjacent limit column, a second elastic element is fixedly connected between the second limit piece and the blocking plate, the blocking plate is provided with a first cavity arranged in a mirror image, a sliding piece is slidably connected in the first cavity on the blocking plate, the sliding piece is fixedly connected to the adjacent clamping piece, a third elastic element is fixedly connected between the sliding piece and the blocking plate, and a reset assembly for making the clamping pieces arranged in a mirror image cooperate with the lead screw thread is provided on the side of the blocking plate close to the lead screw.

[0010] As an improvement of the above solution, the limiting groove on the second limiting member gradually tilts from one side close to the drone to the other side in a direction away from the adjacent clamping member, so as to enable the first limiting member and the blocking plate to slide relative to each other.

[0011] As an improvement of the above scheme, the reset assembly includes a first extrusion member arranged in a mirror image, and the first extrusion members arranged in a mirror image are all slidably connected to the side of the blocking plate close to the screw. The blocking plate is provided with a second cavity arranged in a mirror image and a third cavity arranged in a mirror image, the second cavity is filled with a transmission medium, the second cavity is connected to the adjacent third cavity, the first extrusion member slides in the adjacent second cavity, the first extrusion member is in contact and extrusion fit with the storage barrel, the second extrusion member is slidably connected in the third cavity on the blocking plate, the second extrusion member is in contact and extrusion fit with the adjacent clamping member, and a fourth elastic element is fixedly connected between the first extrusion member and the blocking plate.

[0012] As an improvement of the above solution, the second cavity and the third cavity are both cylindrical, and the diameter of the second cavity is larger than the diameter of the third cavity, so that the displacement distance of the second limit member is larger than the displacement distance of the adjacent first extrusion member.

[0013] As an improvement of the above scheme, the blocking plate is fixedly connected with an expansion piece arranged in a mirror image, and the expansion piece is in contact and cooperation with the storage barrel. The blocking plate is provided with a channel arranged in a mirror image, and the channel is connected with the adjacent expansion piece. The first cavity is connected with the adjacent channel, and the first cavity and the channel are both filled with transmission medium.

[0014] As an improvement of the above solution, the side of the expansion member away from the lead screw is made of wear-resistant material to enable the expansion member to be in contact with the storage barrel for a long time.

[0015] Compared with the prior art, the present invention has at least the following advantages: the present invention blocks the pesticide in the storage barrel through the blocking plate, thereby reducing the overall disorder of the pesticide in the storage barrel, preventing the change of the flight path of the drone from causing the tumbling of the pesticide in the storage barrel, making the pesticide unstable, resulting in the generation of foam, and causing the light components in the pesticide to move upward, thereby resulting in uneven pesticide concentration during spraying, reducing the final killing effect; the elastic deformation of the first elastic element is used to buffer the grounding action of the drone and its parts, thereby avoiding the drone and its parts from being impacted due to hard contact with the ground, reducing the degree of firmness of the mutual connection between the parts, and thus affecting the normal pesticide spraying process; the blocking plate is used to continuously and forcibly The limiting mechanism reduces the tumbling degree of the pesticide in the storage barrel due to the sudden change of the flight path, thereby reducing the foaming degree of the pesticide; the clamping member is disengaged from the lead screw through the pulling force of the third elastic element, so that the blocking plate is relatively "active" again, thereby reducing the operating steps of the staff when pouring the pesticide into the storage barrel later, thereby reducing the work intensity of the staff; the expansion member is expanded by hydraulic oil and fits with the inner wall of the storage barrel, so as to fill the gap between the blocking plate and the storage barrel, reduce the tumbling space of the pesticide in the storage barrel, thereby reducing the foaming of the pesticide, and at the same time, the expanded expansion member is used to scrape the inner wall of the storage barrel during the downward movement of the blocking plate, so as to eliminate the pesticide adhering to the inner wall of the storage barrel, thereby reducing the difficulty of subsequent staff to clean the storage barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the fixing frame of the present invention;

[0018] Figure 3 It is a three-dimensional structural cross-sectional view of the storage barrel of the present invention;

[0019] Figure 4 It is a three-dimensional structural cross-sectional view of the present invention when the lead screw and the storage barrel rotate relative to each other;

[0020] Figure 5 It is a three-dimensional structural cross-sectional view of the clamping member and the blocking plate of the present invention when relative sliding occurs;

[0021] Figure 6 It is a three-dimensional structural cross-sectional view of the present invention when the sliding member and the blocking plate slide relative to each other;

[0022] Figure 7 It is a three-dimensional structural exploded view of the blocking plate and the parts thereon of the present invention.

[0023] In the accompanying drawings: 1-UAV, 2-fixed frame, 3-storage barrel, 4-driving motor, 5-water pump, 6-dispensing tube, 7-buffer frame, 8-first elastic element, 9-blocking plate, 1001-screw, 1002-transmission shaft, 1003-clamping member, 1101-first limiting member, 1102-second limiting member, 1103-second elastic element, 1104-sliding member, 1105-third elastic element, 1201-first extrusion member, 1202-second extrusion member, 1203-fourth elastic element, 13-expansion member, 14-channel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] When using a pesticide spraying drone, the pesticide in the drone's medicine barrel gradually decreases as the operation time increases. As the amount of pesticide decreases, the air space above the inside of the medicine barrel becomes larger, which increases the free range of movement of the pesticide liquid. When the drone changes direction or angle during flight, the pesticide will shake inside the medicine barrel due to inertia. This shaking may cause the pesticide to be unstable and prone to foaming, affecting the uniformity of the various ingredients in the agricultural product, which in turn leads to inconsistent pesticide concentrations during spraying, affecting the final weed control or insecticide effect.

[0026] Example 1: A pesticide spraying drone with protection function, such as Figure 1-Figure 3As shown, it includes a drone 1, a fixing frame 2 is fixedly connected to the lower side of the drone 1, a storage barrel 3 fixedly connected to the drone 1 is fixedly connected in the middle of the fixing frame 2, the storage barrel 3 is used to store liquid pesticides, and a twist cover is threadedly connected to the upper side of the storage barrel 3 to isolate the storage barrel 3 from the external environment, thereby preventing debris from entering the storage barrel 3 to contaminate the pesticides and reduce the killing effect of the pesticides. A driving motor 4 and a water pump 5 are installed in the middle and lower part of the left side of the fixing frame 2 through a mounting frame. The driving motor 4 is a double-axis motor, and the output shaft on the lower side of the driving motor 4 is connected to the power input end of the water pump 5, so as to drive the water pump 5 to work and extract the pesticides in the storage barrel 3. The water pump 5 is connected to the storage barrel 3 through an intermediate pipe, and the lower side of the fixing frame 2 is fixedly connected to a dispensing pipe 6 through two fixing parts arranged in left and right mirror images, and the dispensing pipe 6 is connected to the water pump 5 through a connecting pipe, and a plurality of uniformly arranged nozzles are installed on the lower side of the dispensing pipe 6, and a buffer frame 7 that cooperates with the fixed frame 2 is slidably connected to the lower side of the fixing frame 2. 2 limits the buffer frame 7 so that the buffer frame 7 moves with the fixed frame 2. Four evenly arranged first elastic elements 8 are fixedly connected between the buffer frame 7 and the fixed frame 2. The first elastic element 8 is a spring and is used to buffer the fixed frame 2 and the parts thereon. A blocking plate 9 is slidingly connected in the storage barrel 3. The blocking plate 9 is made of plastic. There is a gap between the blocking plate 9 and the storage barrel 3, which is used to allow the pesticide in the storage barrel 3 to pass through the blocking plate 9. The design of the blocking plate 9 can effectively limit the movement of the pesticide, so that the pesticide can only flow in the gap between the blocking plate 9 and the storage barrel 3, thereby reducing the overall fluctuation of the pesticide in the storage barrel 3 and avoiding the tumbling of the pesticide in the storage barrel 3 caused by the change of the path of the drone 1 during the flight, thereby preventing the generation of foam. If there is no such blocking measure, the pesticide may become unstable and generate foam, causing the light components in the pesticide to move upward, reducing the uniformity of the various components of the pesticide, resulting in uneven pesticide concentration during spraying, affecting the final pesticide efficacy.

[0027] When the present invention is needed to spray pesticides on farmland, the staff first unscrews the twist cap, and then pours the prepared pesticide into the storage barrel 3. The pesticide gradually accumulates in the storage barrel 3, and then the blocking plate 9 begins to move upward along the storage barrel 3 under the action of buoyancy until the staff finishes pouring the pesticide and tightens the twist cap. Then the staff starts the drone 1 through a remote control (a control terminal such as a mobile phone APP), and the drone 1 drives the storage barrel 3 and its parts thereon to fly off the ground through the fixing frame 2.

[0028] When the UAV 1 flies off the ground, the pressure of the fixing frame 2 and its parts on the four first elastic elements 8 is gradually reduced, and the four first elastic elements 8 are gradually restored to their original state. After the first elastic elements 8 are completely restored to their original state, the fixing frame 2 drives the buffer frame 7 to move together. After the UAV 1 moves to the spraying position, the staff starts the driving motor 4 through the remote control, and the output shaft of the driving motor 4 starts to rotate counterclockwise (looking down). The output shaft on the lower side of the driving motor 4 drives the input end of the water pump 5 to rotate counterclockwise together. Then the water pump 5 starts to extract the pesticide in the storage barrel 3 through the intermediate pipe. After being pressurized by the water pump 5, the pesticide enters the dispensing pipe 6 through the connecting pipe. Finally, the pesticide passes through several nozzles and is discharged from the dispensing pipe 6 in the form of mist. Then the mist pesticide contacts the crops evenly, thereby achieving the purpose of eliminating harmful substances.

[0029] As the pesticide spraying time increases, the amount of pesticide in the storage barrel 3 gradually decreases (the liquid level gradually drops), and the blocking plate 9 gradually moves downward relative to the storage barrel 3 following the pesticide liquid level under the action of its own gravity. When the flight path of the drone 1 changes suddenly during a turn or other events, the pesticide in the storage barrel 3 will tumble due to inertia. At this time, the blocking plate 9 will block the pesticide, so that a small amount of pesticide will only move in the gap between the blocking plate 9 and the storage barrel 3, which reduces the degree of disorder of the overall pesticide in the storage barrel 3 and prevents the change in the flight path of the drone 1 from causing the tumbling of the pesticide in the storage barrel 3, resulting in the generation of foam, making the pesticide unstable and prone to foaming, causing the light components in the pesticide to move upward, thereby resulting in uneven pesticide concentration during spraying and reducing the final sterilization effect.

[0030] When the spraying of pesticides is completed (the pesticides in the storage barrel 3 are exhausted), the staff controls the drone 1 to fly back to its original position (grounding) through the remote control. During the grounding process of the drone 1, when the buffer frame 7 contacts the ground, the drone 1 and its parts gradually apply gravity to the four first elastic elements 8, so that the drone 1 and its parts are prevented from being impacted due to hard contact between the drone 1 and its parts and the ground during the landing process, and the strength of the connection between the parts is reduced, thereby affecting the normal pesticide spraying process. After the drone 1 and its parts are completely reset, the staff can turn off the drive motor 4 through the remote control.

[0031] Embodiment 2: Based on embodiment 1, Figure 2-Figure 6As shown, it also includes a transmission mechanism for making the blocking plate 9 and the storage barrel 3 slide relative to each other. The transmission mechanism is arranged in the storage barrel 3. The transmission mechanism includes a screw 1001. The screw 1001 is rotatably connected to the left part of the storage barrel 3. The output shaft on the upper side of the driving motor 4 is fixedly connected to a transmission shaft 1002. The transmission shaft 1002 and the screw 1001 are connected through a pulley belt transmission. The left side of the blocking plate 9 is slidably connected to two clamping members 1003 arranged in front and back mirror images. The clamping member 1003 is threadedly matched with the screw 1001. The blocking plate 9 is used to spray pesticides. During the process, the blocking plate 9 always keeps contact with the pesticide (the blocking plate 9 always keeps a horizontal state and forces the pesticide on its lower side to be limited), so that the blocking plate 9 can continuously limit the movement of the pesticide in the storage barrel 3. This can reduce the fluctuation of the pesticide caused by the sudden change of the flight path of the drone 1, and thus reduce the degree of foaming of the pesticide. This design helps to maintain the stability of the pesticide, prevent the pesticide from foaming, affect the distribution of the various components in the pesticide, and ensure the consistency of the pesticide concentration during spraying. A limiting component for limiting both clamps 1003 is provided on the left side of the blocking plate 9.

[0032] like Figure 5-Figure 7 As shown, the limiting assembly includes two first limiting members 1101 arranged in a front-to-back mirror image, the two first limiting members 1101 are both slidably connected to the left side of the blocking plate 9, and limiting columns are arranged on the back sides of the two first limiting members 1101. The left side of the blocking plate 9 is slidably connected with two second limiting members 1102 arranged in a front-to-back mirror image, and the lower side of the second limiting member 1102 is in contact with the lower side of the storage barrel 3 for extrusion cooperation. The second limiting member 1102 is extruded and limited by the storage barrel 3, so that the second limiting member 1102 and the blocking plate 9 slide relative to each other, and a limiting groove is provided on the upper side of the second limiting member 1102. The limiting groove on the second limiting member 1102 gradually tilts linearly to the left from top to bottom, and the limiting groove cooperates with the adjacent limiting column to limit the first limiting member. Component 1101 slides relative to the blocking plate 9, a second elastic element 1103 is fixedly connected between the second limiting component 1102 and the blocking plate 9, the second elastic element 1103 is a tension spring, which is used to make the adjacent second limiting component 1102 slide relative to the blocking plate 9, the blocking plate 9 is provided with two first cavities arranged in front and back mirror images, a sliding component 1104 fixedly connected to the adjacent clamping component 1003 is slidably connected in the first cavity on the blocking plate 9, a third elastic element 1105 is fixedly connected between the sliding component 1104 and the blocking plate 9, the third elastic element 1105 is a tension spring, which is used to reset the adjacent sliding component 1104, and a reset component for making the two clamping components 1003 threadably cooperate with the lead screw 1001 is provided on the left side of the blocking plate 9.

[0033] like Figure 5-Figure 7As shown, the reset assembly includes two first extrusion members 1201 arranged in a front-to-back mirror image, and the two first extrusion members 1201 are both slidably connected to the left side of the blocking plate 9. The blocking plate 9 is provided with two second cavities arranged in a front-to-back mirror image and two third cavities arranged in a front-to-back mirror image. The second cavity is filled with a transmission medium, and the transmission medium is hydraulic oil. The second cavity is connected to the adjacent third cavity. The second cavity and the third cavity are both cylindrical, and the diameter of the second cavity is larger than the diameter of the third cavity, which is used to make the displacement distance of the second limit member 1102 greater than the displacement distance of the adjacent first extrusion member 1201. The first extrusion member 1201 slides in the adjacent second cavity, and the first extrusion member 1 The upper side of 201 is in contact with and extruded into the upper side of the storage barrel 3, and the first extrusion member 1201 is extruded and limited by the storage barrel 3, so that the first extrusion member 1201 and the blocking plate 9 slide relative to each other, and a second extrusion member 1202 in contact with and extruded into the adjacent clamping member 1003 is slidably connected in the third cavity on the blocking plate 9, and the adjacent clamping member 1003 is extruded by the second extrusion member 1202, so that the clamping member 1003 and the blocking plate 9 slide relative to each other, and a fourth elastic element 1203 is fixedly connected between the first extrusion member 1201 and the blocking plate 9, and the fourth elastic element 1203 is a spring, which is used to reset the adjacent first extrusion member 1201.

[0034] like Figure 3 and Figure 5-Figure 7 As shown, the blocking plate 9 is fixedly connected with two expansion members 13 arranged in front and back mirror images, the expansion members 13 are in contact with the storage barrel 3, the outer periphery of the expansion member 13 is made of wear-resistant material, which is used to improve the wear resistance of the contact area between the expansion member 13 and the storage barrel 3, so that the expansion member 13 is in contact with the storage barrel 3 for a long time, thereby extending the service life of the expansion member 13, and the blocking plate 9 is provided with two channels 14 arranged in front and back mirror images, the channels 14 are connected with adjacent expansion members 13, the first cavity is connected with the adjacent channels 14, and the first cavity and the channel 14 are both filled with transmission medium, and the transmission medium is hydraulic oil.

[0035] In the process of the blocking plate 9 moving upward along the storage barrel 3, the blocking plate 9 drives the two clamping members 1003 and the two first extrusion members 1201 to move upward together, and the storage barrel 3 gradually loses the extrusion of the two second limit members 1102. However, since the second limit members 1102 are blocked by the adjacent clamping members 1003, the second limit members 1102 and the blocking plate 9 remain relatively still at this time (the clamping members 1003 are not threadedly matched with the lead screw 1001). When the blocking plate 9 moves upward until the first extrusion member 1201 contacts the upper side surface inside the storage barrel 3, as the blocking plate 9 continues to move upward, the first extrusion member 1201 and the blocking plate 9 slide relative to each other, that is, the first extrusion member 1201 moves downward relative to the blocking plate 9, the adjacent fourth elastic element 1203 is compressed, and the first extrusion member 1201 begins to squeeze the hydraulic oil in the adjacent second cavity. The hydraulic oil in the second cavity then enters the adjacent third cavity, and the hydraulic oil in the third cavity begins to squeeze the adjacent second extrusion member 1202. Then, the two second extrusion members 1202 begin to move toward each other, and the second extrusion members 1202 slide relative to the adjacent first limiting member 1101, and the second extrusion members 1202 drive the adjacent clamping member 1003 to move together, and the clamping member 1003 drives the adjacent sliding member 1104 to move together, and the adjacent third elastic element 1105 is stretched until the two clamping members 1003 move to the threaded engagement with the lead screw 1001, and then the blocking plate 9 moves upward along the storage barrel 3 to the limit position. At the same time, the clamping member 1003 loses its blocking effect on the adjacent second limiting member 1102, and then the second limiting member 1102 begins to slide downward relative to the blocking plate 9 under the pulling force of the adjacent second elastic element 1103, and the limiting groove on the second limiting member 1102 begins to squeeze the limiting column on the adjacent first limiting member 1101, and then the first limiting member 1101 begins to move to the right and limits the adjacent clamping member 1003, so that the clamping member 1003 is tightly connected with the screw 1001.

[0036] After the two clamping members 1003 are threadedly engaged with the lead screw 1001, during the counterclockwise rotation of the output shaft on the upper side of the drive motor 4, the output shaft on the upper side of the drive motor 4 drives the transmission shaft 1002 to rotate counterclockwise together, and the transmission shaft 1002 transmits power to the lead screw 1001 through the pulley belt, and then the lead screw 1001 starts to rotate counterclockwise, and the two clamping members 1003 start to move downward under the action of the extrusion of the lead screw 1001 thread, and the two clamping members 1003 jointly drive the blocking plate 9 and the parts thereon to move downward together, and the storage barrel 3 gradually loses the extrusion of the first extrusion member 1201, and the first extrusion member 1201 is affected by the elastic force of the adjacent fourth elastic element 1203 The baffle plate 9 gradually resets downward. Since the speed at which the baffle plate 9 moves downward is related to the rotation speed of the output shaft of the drive motor 4, the speed at which the water pump 5 extracts the pesticide in the storage barrel 3 is also related to the rotation speed of the output shaft of the drive motor 4, that is, the speed at which the baffle plate 9 moves downward is matched with the speed at which the water pump 5 extracts the pesticide in the storage barrel 3. In this way, the baffle plate 9 is always in contact with the pesticide during the pesticide spraying process. Since the clamping member 1003 and the lead screw 1001 are relatively stable, the baffle plate 9 and the storage barrel 3 are also relatively stable. In this way, the baffle plate 9 continuously and compulsorily limits the pesticide in the storage barrel 3, reduces the tumbling degree of the pesticide in the storage barrel 3 due to the sudden change of the flight path, and thus reduces the foaming degree of the pesticide.

[0037] Subsequently, during the downward movement of the blocking plate 9 relative to the storage barrel 3, when the blocking plate 9 moves downward until the second limiting member 1102 contacts the storage barrel 3, as the blocking plate 9 continues to move downward, the storage barrel 3 begins to squeeze the second limiting member 1102, and the second limiting member 1102 begins to move upward relative to the blocking plate 9, the adjacent second elastic element 1103 is stretched, and the limiting groove on the second limiting member 1102 begins to squeeze the limiting column on the adjacent first limiting member 1101, and then the first limiting member 1101 begins to move to the left, and the first limiting member 1101 gradually loses its limit on the adjacent clamping member 1003. When the first limiting member 1101 completely loses its limit When the adjacent clamping members 1003 are limited, the two sliding members 1104 start to move back to back under the action of the pulling force of the adjacent third elastic elements 1105, and the sliding members 1104 drive the adjacent clamping members 1003 to move together. The clamping members 1003 gradually lose the threaded fit with the lead screw 1001 and gradually reset until the clamping members 1003 are completely reset. At this time, the third elastic element 1105 returns to its original state, thereby disengaging the clamping members 1003 from the lead screw 1001, so that the blocking plate 9 is relatively "active" again, thereby reducing the operating steps of the staff when pouring the pesticide into the storage barrel 3 later, thereby reducing the work intensity of the staff.

[0038] During the process of the two sliding members 1104 moving toward each other, the sliding member 1104 squeezes the hydraulic oil in the adjacent third cavity on the blocking plate 9, and the hydraulic oil in the third cavity enters the adjacent channel 14. The hydraulic oil in the channel 14 then squeezes the adjacent expansion member 13, causing the expansion member 13 to expand and fit against the inner wall of the storage barrel 3, thereby filling the gap between the blocking plate 9 and the storage barrel 3, reducing the tumbling space of the pesticide in the storage barrel 3, thereby reducing the foaming of the pesticide, and at the same time, the expanded expansion member 13 is used to scrape the inner wall of the storage barrel 3 in the process of moving downward with the blocking plate 9, thereby eliminating the pesticide adhering to the inner wall of the storage barrel 3, thereby reducing the difficulty of subsequent staff in cleaning the storage barrel 3, and during the process of the two sliding members 1104 moving back to back, the sliding member 1104 extracts the hydraulic oil in the adjacent channel 14 again, so that the expanded expansion member 13 returns to its original state.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pesticide spraying drone with a protective function, comprising a drone (1), wherein the drone (1) is fixedly connected to a fixing frame (2), wherein the fixing frame (2) is fixedly connected to a storage barrel (3), wherein the storage barrel (3) is used to store liquid, wherein the storage barrel (3) is fixedly connected to the drone (1), wherein one side of the storage barrel (3) is threadedly connected to a twist cover, wherein the fixing frame (2) is provided with a driving motor (4) and a water pump (5), wherein the driving motor (4) is a double-shaft motor, wherein an output shaft on one side of the driving motor (4) is connected to the water pump (5), wherein the water pump (5) is connected to the storage barrel (3), wherein one side of the fixing frame (2) is fixedly connected to a liquid dispensing tube (6), wherein the liquid dispensing tube (6) is connected to the water pump (5), Features: The invention also comprises a buffer frame (7), wherein the buffer frame (7) is slidably connected to a side of the fixing frame (2) away from the drone (1), the buffer frame (7) and the fixing frame (2) are limitedly matched, a first elastic element (8) is fixedly connected between the buffer frame (7) and the fixing frame (2), and a blocking plate (9) is arranged in the storage barrel (3).

2. A pesticide spraying drone with protection function according to claim 1, Its characteristics are: The storage barrel (3) is connected to the blocking plate (9) in a limited sliding manner, so that the blocking plate (9) blocks the turbulent liquid in the storage barrel (3).

3. A pesticide spraying drone with protection function according to claim 1, Its characteristics are: There is a gap between the blocking plate (9) and the storage barrel (3) for allowing the liquid in the storage barrel (3) to pass through the blocking plate (9).

4. A pesticide spraying drone with protection function according to claim 3, Its characteristics are: The invention also comprises a transmission mechanism for making the blocking plate (9) and the storage barrel (3) slide relative to each other, the transmission mechanism being arranged in the storage barrel (3), the transmission mechanism comprising a lead screw (1001), the lead screw (1001) being rotatably connected to the storage barrel (3), the output shaft on the other side of the driving motor (4) being fixedly connected to a transmission shaft (1002), the transmission shaft (1002) and the lead screw (1001) being connected via a pulley belt transmission, the side of the blocking plate (9) close to the lead screw (1001) being slidably connected to a clamping member (1003) arranged in a mirror image, the clamping member (1003) being threadedly matched with the lead screw (1001), and a limiting assembly for limiting the clamping members (1003) arranged in a mirror image is arranged on the side of the blocking plate (9) close to the lead screw (1001).

5. A pesticide spraying drone with protection function according to claim 4, Its characteristics are: The limiting assembly comprises a first limiting member (1101) arranged in a mirror image, the first limiting members (1101) arranged in a mirror image are all slidably connected to the blocking plate (9), and limiting columns are arranged on the back sides of the first limiting members (1101) arranged in a mirror image. A second limiting member (1102) arranged in a mirror image is slidably connected to a side of the blocking plate (9) close to the lead screw (1001), the second limiting member (1102) is in contact and extrusion fit with the storage barrel (3), a limiting groove is arranged on a side of the second limiting member (1102) close to the adjacent first limiting member (1101), and the limiting groove is in limiting fit with the adjacent limiting column, and the second limiting member A second elastic element (1103) is fixedly connected between the member (1102) and the blocking plate (9); the blocking plate (9) is provided with a first cavity arranged in a mirror image; a sliding member (1104) is slidably connected in the first cavity on the blocking plate (9); the sliding member (1104) is fixedly connected to the adjacent clamping member (1003); a third elastic element (1105) is fixedly connected between the sliding member (1104) and the blocking plate (9); a reset component for making the clamping members (1003) arranged in a mirror image cooperate with the thread of the screw (1001) is provided on one side of the blocking plate (9) close to the screw (1001).

6. A pesticide spraying drone with protection function according to claim 5, Its characteristics are: The limiting groove on the second limiting member (1102) is gradually inclined from one side close to the drone (1) to the other side in a direction away from the adjacent clamping member (1003), so as to enable the first limiting member (1101) and the blocking plate (9) to slide relative to each other.

7. The pesticide spraying drone with protection function according to claim 5, Its characteristics are: The reset assembly comprises a first extrusion member (1201) arranged in a mirror image, the first extrusion members (1201) arranged in a mirror image are all slidably connected to a side of the blocking plate (9) close to the lead screw (1001), the blocking plate (9) is provided with a second cavity arranged in a mirror image and a third cavity arranged in a mirror image, the second cavity is filled with a transmission medium, the second cavity is connected to an adjacent third cavity, the first extrusion member (1201) slides in the adjacent second cavity, the first extrusion member (1201) is in contact and extrusion fit with the storage barrel (3), a second extrusion member (1202) is slidably connected to the third cavity on the blocking plate (9), the second extrusion member (1202) is in contact and extrusion fit with the adjacent clamping member (1003), and a fourth elastic element (1203) is fixedly connected between the first extrusion member (1201) and the blocking plate (9).

8. A pesticide spraying drone with protection function according to claim 7, Its characteristics are: The second cavity and the third cavity are both cylindrical, and the diameter of the second cavity is larger than the diameter of the third cavity, so as to make the displacement distance of the second limiting member (1102) larger than the displacement distance of the adjacent first extrusion member (1201).

9. The pesticide spraying drone with protection function according to claim 7, Its characteristics are: The blocking plate (9) is fixedly connected with an expansion member (13) arranged in a mirror image, the expansion member (13) is in contact with the storage barrel (3), the blocking plate (9) is provided with a channel (14) arranged in a mirror image, the channel (14) is communicated with an adjacent expansion member (13), the first cavity is communicated with an adjacent channel (14), and the first cavity and the channel (14) are both filled with a transmission medium.

10. A pesticide spraying drone with protection function according to claim 9, Its characteristics are: The side of the expansion member (13) away from the lead screw (1001) is made of a wear-resistant material, so as to enable the expansion member (13) to be in contact with the storage barrel (3) for a long time.

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