A forestry disease and pest control injection device and method thereof

Abstract

The application discloses a forestry disease and pest control injection device and method, and belongs to the technical field of forestry. The device comprises a pesticide spraying mechanism, two auxiliary pesticide spraying mechanisms are arranged below the pesticide spraying mechanism, and a motor drives a screw rod to rotate. The screw rod presses a piston downward, so that the piston can press pesticide in a box body outwards. The pesticide can be pressed into a spraying head through an output pipe and sprayed outwards, so that pesticide spraying is realized to prevent and control forestry diseases and pests. This method not only realizes pesticide spraying, but also makes the piston level with the liquid level and descend along with the liquid level, so that pesticide shaking caused by low water level during flight can be avoided, and the stability of the unmanned aerial vehicle is affected. In addition, screw rod rotation also drives a cam to extrude a pulley. The cam and a third spring can drive a telescopic frame to reciprocatingly extend and retract, so that the spraying head can reciprocatingly move to spray pesticide, so that the pesticide spraying range is widened, and the pesticide spraying efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of forestry technology, and in particular to a pesticide injection device and method for controlling forest pests and diseases. Background Technology

[0002] Forestry pests and diseases refer to the abnormal physiological processes of forest plants during their growth and development, or during the storage and transportation of their products and propagation materials, caused by infection by other organisms or unsuitable environmental conditions. These processes disrupt and damage the normal function of the plant's physiological processes, resulting in a series of abnormal states in the plant's physiology, tissues, and morphology, leading to poor growth and development, or even the death of the entire plant.

[0003] In the process of controlling forest pests and diseases, plant protection drones are often used for pesticide spraying. Currently, the spraying range of common plant protection drones is not adjustable. When it is necessary to expand the spraying range, the drone's flight path needs to be expanded, which affects the efficiency of the spraying operation. Moreover, during the drone's flight process, such as changing direction, accelerating, and decelerating, the pesticide in the tank will shake, which will affect the drone's flight stability. In addition, during the spraying process, some atomized pesticide will drift horizontally in all directions, which not only causes waste but also causes significant environmental pollution. Furthermore, the pesticide cannot be sprayed evenly downwards, and the sedimentation of the pesticide will also affect the uniformity of the spraying.

[0004] To address the aforementioned problems, this invention proposes a pesticide injection device and method for controlling forest pests and diseases. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of common agricultural drones, such as the inability to adjust the spraying range, the need to expand the drone's flight path when the spraying range needs to be increased, which affects the efficiency of spraying operations, the shaking of the pesticide solution in the tank during drone changes of direction, acceleration and deceleration, which affects the drone's flight stability, the horizontal dispersion of some atomized pesticide solution during spraying, which not only causes waste but also causes significant environmental pollution. Furthermore, the pesticide solution cannot be sprayed evenly downwards, and the sedimentation of the pesticide solution also affects the uniformity of spraying. Therefore, this invention proposes a pesticide injection device and method for the control of forestry pests and diseases.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A forestry pest and disease control injection device includes a spraying mechanism, and two spraying auxiliary mechanisms are provided below the spraying mechanism; The spraying mechanism includes a drone equipped with a pesticide storage component. A cam is connected to the bottom of the pesticide storage component, and two spraying components are connected to the bottom of the pesticide storage component. The pesticide storage component sprays pesticides through the spraying components to carry out forestry pest control operations. The spraying auxiliary mechanism includes a telescopic component, which is connected to a transmission component and a rope winding component. The transmission component is mounted on the rope winding component, and one side of the transmission component is connected to a flow guiding component. The transmission component is also connected to a spraying component. The pesticide storage component drives the cam and the telescopic components on both sides to realize the reciprocating spraying operation of the spraying component. Under the reciprocating motion of the telescopic components, the reel component drives the transmission component to rotate the spraying component to spray pesticides. In addition, the transmission component also drives the guide component to accelerate the descent speed of the pesticide.

[0007] Preferably, the medicine storage assembly includes a box, an alarm is fixedly installed on the top of the box, two infusion tubes are arranged at the bottom of the box, a piston is arranged inside the box, an exhaust valve is arranged on the piston, and a water level alarm structure is arranged on the piston; A nut is installed on the piston, and the nut is threaded onto the screw. The top end of the screw is fixedly connected to the output shaft of the motor. The motor is mounted on the housing. The screw is rotatably mounted on the housing via bearings. A stirring blade is fixedly connected to the bottom end of the screw. The stirring blade is located inside the lower part of the housing. The bottom end of the screw is fixedly connected to a cam.

[0008] Preferably, the water level alarm structure includes a guide sleeve, which is mounted on the piston. A bracket is slidably provided inside the guide sleeve, and a switch is installed above the bracket. A first spring is fixedly connected between the bracket and the piston. The lower part of the switch corresponds to the slide rod, which is slidably connected in the slide sleeve. The slide sleeve is mounted on the piston, and a second spring is fixedly connected between the lower part of the slide sleeve and the bottom end of the slide rod.

[0009] Preferably, the telescopic component includes a dovetail strip, which is fixedly connected to the bottom of the housing. A slider is slidably connected to the dovetail strip, and a pulley is fixedly connected to one side of the slider. The pulley contacts one side of the cam. The slider is hinged to the telescopic frame. One axle pin of the telescopic frame extends and is fixedly connected to the dovetail strip. Two axle pins of the telescopic frame are fixedly connected to the ball sleeve and the movable rod, respectively. The ball sleeve contains the movable rod. One end of the movable rod is fixedly connected to a circular block. A third spring is fixedly connected between the circular block and the ball sleeve.

[0010] Preferably, the spraying assembly includes an output pipe that communicates with the lower part of the housing. One end of the output pipe is also connected to a spray head. The spray head is rotatably mounted on one end of the output pipe via a bearing. One end of the output pipe is a flexible hose, and the other end is a rigid pipe. The rigid pipe portion of the output pipe is also fixedly connected to a pivot pin that connects the telescopic frame and the movable rod.

[0011] Preferably, the rope winding assembly includes a rope reel, a rope is wound around the outside of the rope reel, and one end of the rope is fixedly connected to the pivot pin of the telescopic frame connecting dovetail strip; The rope reel is fixedly connected to one end of the rotating shaft. The rotating shaft is rotatably mounted on the fixed frame via a bearing. The fixed frame is fixedly connected to the movable rod. A first torsion spring is fixedly connected to one side of the rope reel, and one end of the first torsion spring is fixed to the bearing on the rotating shaft.

[0012] Preferably, the transmission assembly includes a second bevel tooth, a rotating rod is fixedly connected to the second bevel tooth, the rotating rod is rotatably mounted on the fixed frame via a bearing, a third bevel tooth is fixedly connected to one end of the rotating rod, the third bevel tooth meshes with a fifth bevel tooth, and the fifth bevel tooth is fixedly connected to the spray head.

[0013] Preferably, the second bevel tooth meshes with two first bevel teeth. The first bevel teeth are rotatably mounted on a rotating shaft via bearings. The first bevel teeth are hinged to ratchet teeth via pins. A second torsion spring is fixedly connected between the ratchet teeth and the first bevel teeth. The second torsion spring is sleeved outside the pins. The ratchet teeth mesh with ratchet wheels. Two ratchet wheels are fixedly connected to the rotating shaft, and the tooth segments of the two ratchet wheels are arranged in opposite directions.

[0014] Preferably, the flow guiding assembly includes a sleeve, which is rotatably mounted on the rigid section of the output pipe via a bearing. A fan blade and a fourth umbrella tooth are fixedly connected to the outside of the sleeve, the fourth umbrella tooth meshing with the third umbrella tooth, and the fan blade is located above the spray head.

[0015] A method for using a forestry pest and disease control injection device includes the following steps: S1. When spraying forestry pesticides, the drone is launched into the air by controlling the drone. After launch, the motor drives the screw to rotate, which in turn drives the stirring blade to rotate. The stirring blade stirs the pesticide and the screw drives the nut to move the piston downward, which pushes the pesticide out of the box and sprays it out through the spray head. S2. Secondly, the rotation of the screw also drives the rotation of the cam. The cam squeezes the pulley to move, causing the pulley to drive the telescopic frame to retract through the slider. This causes the telescopic frame to drive the slide bar to move, causing the third spring to deform. When the cam convex surface moves away from the pulley, the potential energy of the third spring is released, causing the telescopic frame to unfold. The third spring and the cam work together to drive the telescopic frame to reciprocate and extend. The telescopic frame also drives the spray head to reciprocate through the output pipe to spray pesticides. S3. During the reciprocating extension and retraction of the telescopic frame, since one end of the rope is fixed, and in conjunction with the first torsion spring, the rope disc reciprocates, causing the rope disc to drive the rotating shaft to rotate. During the forward and reverse rotation of the rotating shaft, the meshing of the ratchet and ratchet wheel alternately controls the transmission of the two first bevel teeth and the second bevel teeth. The second bevel teeth drive the rotating rod to rotate, and then the third bevel teeth, the fourth bevel teeth, and the fifth bevel teeth drive the spray head to rotate for pesticide spraying. At the same time, the fourth bevel teeth drive the sleeve to drive the fan blades to rotate. The fan blades accelerate the descent speed of the pesticide and improve the uniformity of pesticide spraying. Then, the drone is used for aerial pesticide spraying.

[0016] Compared with the prior art, the present invention provides a forestry pest and disease control injection device and method, which has the following beneficial effects: 1. The forestry pest and disease control injection device and method, driven by a motor, rotates a screw and a cam, causing the cam to move in conjunction with a telescopic component. With one end of a rope fixed, the telescopic component reciprocates, driving the rope disc to rotate reciprocally. The forward and reverse rotation of the rotating shaft is controlled by two oppositely arranged ratchet wheels, switching the transmission between the first and second bevel teeth. This causes the rotating rod to drive the third bevel tooth to drive the fourth and fifth bevel teeth respectively. The fifth bevel tooth drives the spray head to rotate for pesticide spraying, increasing the spraying area. Furthermore, the fifth bevel tooth drives the sleeve to rotate the fan blades, causing the fan blades to blow downwards, thereby improving the uniformity of pesticide spraying and reducing pesticide dispersion and environmental pollution.

[0017] 2. The forestry pest and disease control injection device and method utilize a motor-driven screw rotation. The screw presses down on a piston, causing the piston to expel pesticides from the tank. The pesticides are then injected through an output pipe into the spray head for spraying, enabling pesticide spraying to control forestry pests and diseases. This method not only achieves pesticide spraying but also ensures that the piston is level with the liquid level and descends with it, thus preventing pesticide sloshing during flight due to low water levels, which could affect the stability of the drone. Furthermore, the screw rotation drives a cam to press against a pulley, which, in conjunction with a third spring, drives the telescopic frame to reciprocate, allowing the spray head to reciprocate for pesticide spraying. This wide-range pesticide spraying significantly improves the efficiency of pesticide spraying.

[0018] 3. The forestry pest and disease control spraying device and method utilize a motor-driven screw rotation, which in turn drives the stirring blades to rotate, causing the pesticide to flow and preventing pesticide sedimentation. This maintains the uniformity of the pesticide and liquid. The screw also drives a cam rotation, which, in conjunction with a third spring, drives a telescopic frame to reciprocate, causing the spray head to reciprocate and spray the pesticide. Because one end of the rope is fixed, the reciprocating motion of the telescopic frame drives the rope disc to rotate, which in turn drives the transmission assembly to rotate the guide assembly and the fifth bevel gear, achieving rotary spraying and significantly improving spray uniformity. Furthermore, the downward-blowing fan blades not only smoothly guide the pesticide downwards for spraying but also increase the upward force of the device, reducing the overall load. Attached Figure Description

[0019] Figure 1 This is a perspective view of a forestry pest and disease control injection device and method proposed in this invention; Figure 2 This is a bottom-view perspective view of a forestry pest and disease control injection device and method proposed in this invention. Figure 3 This is a three-dimensional view of the spraying auxiliary mechanism of a forestry pest and disease control injection device and method proposed in this invention. Figure 4 This is a perspective view of the box section of a forest pest and disease control injection device and method proposed in this invention. Figure 5 This is a view showing the connection between the pesticide storage component and the telescopic component in a pesticide injection device and method for controlling forest pests and diseases proposed in this invention. Figure 6 This is a three-dimensional view of the screw of a forestry pest and disease control injection device and method proposed in this invention. Figure 7 This is a three-dimensional view of the water level alarm structure of a forestry pest and disease control injection device and method proposed in this invention. Figure 8 This is a view showing the connection between the telescopic component and the spraying component of a forestry pest and disease control injection device and method proposed in this invention. Figure 9 This is a three-dimensional view of the telescopic component of a forestry pest and disease control injection device and method proposed in this invention. Figure 10 This is a three-dimensional view of the spraying component of a forestry pest and disease control injection device and method proposed in this invention. Figure 11 This is a view showing the output pipe and spray head of a forestry pest and disease control injection device and method proposed in this invention.

[0020] Figure 12This is a view showing the connection between the sliding rod and the fixed frame of a forest pest and disease control injection device and method proposed in this invention.

[0021] Figure 13 This is a perspective view of the rope winding assembly of a forest pest and disease control injection device and method proposed in this invention.

[0022] In the diagram: 100, spraying mechanism; 101, drone; 102, pesticide storage assembly; 1021, housing; 1022, piston; 1023, exhaust valve; 1024, motor; 1025, screw; 1026, nut; 1027, stirring blade; 1028, water level alarm structure; 1028a, guide sleeve; 1028b, sliding sleeve; 1028c, bracket; 1028d, first spring; 1028e, second spring; 1028f, sliding rod; 1028g, switch; 1029, alarm; 10210, infusion tube; 103, spraying assembly; 1031, output pipe; 1032, spray head; 104, cam; 200, spraying auxiliary mechanism; 201, telescopic assembly; 2011, Telescopic frame; 2012, Dovetail bar; 2013, Slider; 2014, Pulley; 2015, Ball sleeve; 2016, Movable rod; 2017, Circular block; 2018, Third spring; 202, Rope winding assembly; 2021, Rope; 2022, Rope reel; 2023, Rotating shaft; 2024, First torsion spring; 2025, Fixed frame; 203, Transmission assembly; 2031, First bevel tooth; 2032, Ratchet; 2033, Ratchet tooth; 2034, Second torsion spring; 2035, Second bevel tooth; 2036, Rotating rod; 2037, Third bevel tooth; 2038, Fifth bevel tooth; 204, Flow guide assembly; 2041, Fourth bevel tooth; 2042, Fan blade; 2043, Sleeve. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Example 1: Refer to Figure 1-3 , Figure 5-6 and Figure 10-13A forestry pest and disease control injection device includes a spraying mechanism 100, and two spraying auxiliary mechanisms 200 are provided below the spraying mechanism 100. The spraying mechanism 100 includes a drone 101, on which a pesticide storage assembly 102 is mounted. The pesticide storage assembly 102 includes a housing 1021, inside which a piston 1022 is installed. The piston 1022 is kept flush with the water level to prevent the pesticide from shaking during the flight of the drone 101 and affecting the stability of the drone 101. A nut 1026 is installed on the piston 1022, and the nut 1026 is threaded onto a screw 1025. The connection between the screw 1025 and the nut 1026 is achieved through the connection between the screw 1025 and the nut 1022. 6. The transmission allows the piston 1022 to press down and smoothly output pesticide, while keeping the pesticide level with the liquid level. The top of the screw 1025 is fixedly connected to the output shaft of the motor 1024, which is mounted on the housing 1021. The bottom of the screw 1025 is fixedly connected to the cam 104. The bottom of the pesticide storage assembly 102 is connected to the cam 104. Two spraying assemblies 103 are connected to the bottom of the pesticide storage assembly 102. The pesticide storage assembly 102 sprays pesticide through the spraying assemblies 103 for forestry pest control operations. The pesticide spraying auxiliary mechanism 200 includes a telescopic component 201, which is connected to a transmission component 203 and a rope winding component 202. The transmission component 203 includes a second bevel gear 2035, in which a rotating rod 2036 is fixedly connected. The rotating rod 2036 is rotatably mounted on a fixed frame 2025 via a bearing. The rotating rod 2036 can maintain stable rotation via the bearing, causing the second bevel gear 2035 and the third bevel gear 2037 to rotate stably. One end of the rotating rod 2036 is fixedly connected to the third bevel gear 2037, which meshes with a fifth bevel gear 2038. Through the transmission between the third bevel gear 2037 and the fifth bevel gear 2038, the sleeve 2043 can be driven to rotate the fan blade 2042, thereby assisting in the application of pesticides. In the spraying operation, the fifth bevel tooth 2038 is fixedly connected to the spray head 1032. The second bevel tooth 2035 meshes with the two first bevel teeth 2031. Through the transmission between the first bevel teeth 2031 and the second bevel teeth 2035, the rotating rod 2036 can be driven to rotate. The first bevel teeth 2031 are rotatably mounted on the rotating shaft 2023 via bearings. The first bevel teeth 2031 can rotate independently via the bearings, preventing the rotation of the rotating shaft 2023 from affecting the direction of the first bevel teeth 2031. The first bevel teeth 2031 are hinged to the ratchet 2033 via a pin. A second torsion spring 2034 is fixedly connected between the ratchet 2033 and the first bevel teeth 2031. The second torsion spring 2034 is sleeved outside the pin. The ratchet 2033 meshes with the ratchet wheel 2032. Through the second torsion spring 2034, the rotation of the first bevel teeth 2036 is driven to rotate. The torque of 34 can drive the ratchet 2033 to lock with the ratchet 2032, thereby maintaining the unidirectional rotation of the ratchet 2033. Since the tooth segments of the two ratchets 2032 are arranged in opposite directions, the rotating shaft 2023 can rotate in both directions, alternately controlling the transmission of the two first bevel gears 2031, thus maintaining the same-direction rotation of the second bevel gear 2035 and preventing the fan blades 2042 from drawing air upwards in the opposite direction. The two ratchets 2032 are fixedly connected to the rotating shaft 2023, and the tooth segments of the two ratchets 2032 are arranged in opposite directions. The transmission component 203 is mounted on the rope winding component 202. The rope winding component 202 includes a rope reel 2022, around which a rope 2021 is wound. One end of the rope 2021 is fixed to the pivot pin of the dovetail bar 2012 connecting the telescopic frame 2011. The rope 2021 is connected at one end to the pivot pin of the telescopic frame 2011, allowing the telescopic frame 2011 to extend and retract, thus extending the rope 2021 and controlling the rotation of the rope reel 2022. The rope reel 2022 is fixedly connected to one end of the rotating shaft 2023, which is rotatably mounted on the fixed frame 2025 via bearings. The fixed frame 2025 is fixedly connected to the movable rod 2016. A first torsion spring 2024 is fixedly connected to one side of the rope reel 2022. The torque of the first torsion spring 2024 drives the rope reel 2022 to smoothly wind up the rope 2021 and maintain the rotational movement of the rope reel 2022. One end of the first torsion spring 2024 is fixed to the bearing on the rotating shaft 2023. One side of the transmission component 203 is connected to the guide component 204.The flow guiding assembly 204 includes a sleeve 2043, which is rotatably mounted on the rigid section of the output pipe 1031 via bearings. The sleeve 2043 maintains stable rotation via the bearings, thereby ensuring stable rotation of the fan blade 2042 and the fifth bevel gear 2038. The fan blade 2042 and the fourth bevel gear 2041 are fixedly connected to the sleeve 2043. The fourth bevel gear 2041 meshes with the third bevel gear 2037, and power is transmitted through the interaction between the third bevel gear 2037 and the fourth bevel gear 2041, thus driving the sleeve 2043 to rotate. The fan blade 2042 is located above the spray head 1032. The transmission assembly 203 is also connected to the spray assembly 103. The pesticide storage component 102 drives the cam 104 to cooperate with the telescopic components 201 on both sides to realize the reciprocating spraying operation of the spraying component 103. Under the reciprocating motion of the telescopic components 201, the reel component drives the transmission component 203 to drive the spraying component 103 to rotate and spray pesticides. In addition, the transmission component 203 also drives the guide component 204 to accelerate the descent speed of the pesticide.

[0026] In this embodiment: the motor 1024 drives the screw 1025 and cam 104 to rotate, causing the cam 104 to move in conjunction with the telescopic component 201. With one end of the rope 2021 fixed, the reciprocating motion of the telescopic component 201 drives the rope disc 2022 to rotate reciprocally. The forward and reverse rotation of the rotating shaft 2023 can be controlled by two oppositely arranged ratchet wheels 2032, switching the transmission between the two first bevel teeth 2031 and the second bevel teeth 2035. The rotating rod 2036 drives the third bevel tooth 2037 to drive the fourth bevel tooth 2041 and the fifth bevel tooth 2038 respectively. The fifth bevel tooth 2038 drives the spray head 1032 to rotate for pesticide spraying, increasing the area of ​​pesticide spraying. In addition, the fifth bevel tooth 2038 drives the sleeve 2043 to rotate the fan blade 2042, causing the fan blade 2042 to blow downwards, thereby improving the uniformity of pesticide spraying and reducing pesticide dispersion and environmental pollution.

[0027] Example 2: Refer to Figure 4 and Figure 6-11A pesticide injection device for forestry pest and disease control includes a pesticide storage component 102, which includes a housing 1021 for storing pesticides. An alarm 1029 is fixedly installed on the top of the housing 1021. Two infusion pipes 10210 are located at the bottom of the housing 1021, which can be connected to an external pesticide output terminal. When this is achieved, a screw 1025 drives a nut 1026 to move a piston 1022 upwards, thereby diverting pesticides into the housing 1021. A piston 1022 is installed inside the housing 1021, and an exhaust valve 1023 is installed on the piston 1022. The exhaust valve 1023 allows the device to release pesticides when the piston 1022 moves downwards. The gas inside the body 1021 is discharged, allowing the piston 1022 to contact the liquid level, preventing air from entering during pesticide suction and causing the piston 1022 to separate from the liquid level. A water level alarm structure 1028 is installed on the piston 1022. The water level alarm structure 1028 includes a guide sleeve 1028a, which is mounted on the piston 1022. A bracket 1028c is slidably mounted inside the guide sleeve 1028a. A switch 1028g is installed above the bracket 1028c. A first spring 1028d is fixedly connected between the bracket 1028c and the piston 1022. The first spring 1028d can hold the position of the bracket 1028c, and when the bracket 1028c moves upward and contacts the top wall of the housing 1021... This causes the bracket 1028c to move downwards, bringing the switch 1028g into contact with the slide rod 1028f. At this point, the switch 1028g controls the alarm 1029 to sound an alarm, alerting relevant personnel that the maximum water level has been reached. The second spring 1028e also causes the bracket 1028c to smoothly return to its original position, moving away from the slide rod 1028f. The lower part of the switch 1028g corresponds to the slide rod 1028f, which is slidably connected in the sliding sleeve 1028b. The sliding sleeve 1028b is mounted on the piston 1022. The lower part of the sliding sleeve 1028b is fixedly connected to the bottom end of the slide rod 1028f, allowing the second spring 1028e to hold the slide rod 1028f in place. Furthermore, when the slide rod 1028... f contacts the bottom wall of the housing 1021 downwards. At this time, the slide bar 1028f moves upwards to press the switch 1028g. The switch 1028g can then control the alarm 1029 to sound again, thereby realizing the low water level alarm operation. A nut 1026 is installed on the piston 1022. The nut 1026 is threadedly connected to the screw 1025. The top end of the screw 1025 is fixedly connected to the output shaft of the motor 1024. The motor 1024 is installed on the housing 1021. The screw 1025 is rotatably installed on the housing 1021 through the bearing. A stirring blade 1027 is fixedly connected to the bottom end of the screw 1025. The stirring blade 1027 is located inside the lower part of the housing 1021. The bottom end of the screw 1025 is fixedly connected to the cam 104. The telescopic assembly 201 includes a dovetail bar 2012, which is fixedly connected to the lower part of the housing 1021. A slider 2013 is slidably connected to the dovetail bar 2012, allowing the slider 2013 to slide smoothly on the dovetail bar 2012, thus stabilizing the movement of the telescopic frame 2011. A pulley 2014 is fixedly connected to one side of the slider 2013, and the pulley 2014 contacts one side of the cam 104. The slider 2013 is hinged to the telescopic frame 2011. The telescopic movement of the telescopic frame 2011 drives the spray head 1032 to reciprocate. One axle pin of the telescopic frame 2011 extends and is fixedly connected to the dovetail bar 2012, and two other axle pins of the telescopic frame 2011 are respectively connected to... The ball sleeve 2015 and the movable rod 2016 are fixedly connected. The movable rod 2016 is set in the ball sleeve 2015. The movable rod 2016 slides smoothly in the ball sleeve 2015, so that the telescopic frame 2011 can drive the movable rod 2016 to move smoothly. Secondly, the third spring 2018 resets and can drive the telescopic frame 2011 to unfold smoothly. The second cam 104 can drive the telescopic frame 2011 to retract by squeezing the pulley 2014, so that the third spring 2018 cooperates with the cam 104 to drive the telescopic frame 2011 to achieve reciprocating motion. One end of the movable rod 2016 is fixedly connected to a circular block 2017. The third spring 2018 is fixedly connected between the circular block 2017 and the ball sleeve 2015. The spraying assembly 103 includes an output pipe 1031, which is connected to the lower part of the housing 1021. One end of the output pipe 1031 is also connected to the spray head 1032. The spray head 1032 is rotatably mounted on one end of the output pipe 1031 via a bearing. One end of the output pipe 1031 is a flexible hose, and the other end is a rigid pipe. The output pipe 1031 can be used for pesticide delivery. The flexible hose portion of the output pipe 1031 can ensure the displacement adjustment of the spray head 1032. The rigid pipe portion of the output pipe 1031 can stably support the fan blade 2042. The rigid pipe portion of the output pipe 1031 can also be stably supported by a pin extending from the telescopic frame 2011. The rigid pipe portion of the output pipe 1031 is also fixedly connected to the shaft pin connecting the telescopic frame 2011 and the movable rod 2016.

[0028] In this embodiment: the screw 1025 is driven to rotate by the motor 1024, and the screw 1025 presses down the piston 1022, so that the piston 1022 can squeeze out the pesticide inside the housing 1021. The pesticide can be squeezed into the spray head 1032 through the output pipe 1031 and sprayed out, realizing the control of forest pests and diseases by spraying pesticides. This method not only realizes the spraying of pesticides, but also the piston 1022 is level with the liquid level and drops with the liquid level, thereby avoiding the pesticide shaking caused by low water level during flight, which affects the stability of the drone 101. Secondly, the rotation of the screw 1025 also drives the cam 104 to squeeze the pulley 2014. The cam 104 and the third spring 2018 can drive the telescopic frame 2011 to reciprocate, so that the spray head 1032 can reciprocate to spray pesticides, thereby enabling the spraying of pesticides in a wide range and greatly improving the efficiency of pesticide spraying.

[0029] Example 3: Reference Figure 6 and Figure 9-13 A forestry pest and disease control injection device includes a pesticide storage component 102, which includes a housing 1021. A piston 1022 is disposed inside the housing 1021. A nut 1026 is installed on the piston 1022. The nut 1026 is threadedly connected to a screw 1025. The top end of the screw 1025 is fixedly connected to the output shaft of a motor 1024. The bottom end of the screw 1025 is fixedly connected to a cam 104. An agitator blade 1027 is fixedly connected to the bottom end of the screw 1025. The telescopic assembly 201 includes a dovetail bar 2012, which is fixedly connected to the bottom of the housing 1021. A slider 2013 is slidably connected to the dovetail bar 2012. A pulley 2014 is fixedly connected to one side of the slider 2013. The pulley 2014 contacts one side of the cam 104. The slider 2013 is hinged to the telescopic frame 2011. One axle pin of the telescopic frame 2011 extends and is fixedly connected to the dovetail bar 2012. Two axle pins of the telescopic frame 2011 are fixedly connected to the ball sleeve 2015 and the movable rod 2016, respectively. The movable rod 2016 is provided in the ball sleeve 2015. A circular block 2017 is fixedly connected to one end of the movable rod 2016. A third spring 2018 is fixedly connected between the circular block 2017 and the ball sleeve 2015. The rope winding assembly 202 includes a rope reel 2022, around which a rope 2021 is wound. One end of the rope 2021 is fixedly connected to the dovetail bar 2012 of the telescopic frame 2011 via a pin. The rope reel 2022 is fixedly connected to one end of a rotating shaft 2023. The rotating shaft 2023 is rotatably mounted on a fixed frame 2025 via a bearing. The fixed frame 2025 is fixedly connected to a movable rod 2016. A first torsion spring 2024 is fixedly connected to one side of the rope reel 2022. One end of the first torsion spring 2024 is fixed to a bearing on the rotating shaft 2023.

[0030] In this embodiment: the motor 1024 drives the screw 1025 to rotate, and the screw 1025 drives the stirring blade 1027 to rotate, causing the stirring blade 1027 to agitate the pesticide and prevent the pesticide from settling, thus maintaining the uniformity of the pesticide and liquid. The screw 1025 drives the cam 104 to rotate, and the cam 104, in conjunction with the third spring 2018, drives the telescopic frame 2011 to reciprocate, causing the spray head 1032 to reciprocate to spray the pesticide. Since one end of the rope 2021 is fixed, the reciprocating motion of the telescopic frame 2011 can drive the rope disc 2022 to reciprocate, which can then drive the flow guiding component 204 and the fifth bevel tooth 2038 to rotate, thereby realizing rotational spraying and further improving the uniformity of spraying. Moreover, the fan blade 2042 rotates and blows downward, which not only smoothly guides the pesticide downward for spraying operations, but also increases the upward force of the device and reduces the overall load.

[0031] A method for using a forestry pest and disease control injection device includes the following steps: S1. When spraying forestry pesticides, the drone 101 is controlled to take off. After taking off, the motor 1024 drives the screw 1025 to rotate, which in turn drives the stirring blade 1027 to rotate. The stirring blade 1027 stirs the pesticide. The screw 1025 drives the nut 1026 to drive the piston 1022 to move downward, which in turn pushes the pesticide out of the box 1021 and sprays it out through the spray head 1032. S2. Secondly, the rotation of screw 1025 also drives cam 104 to rotate. Cam 104 squeezes pulley 2014 to move, causing pulley 2014 to drive telescopic frame 2011 to retract through slider 2013. Telescopic frame 2011 drives slide bar 1028f to move, causing third spring 2018 to deform. When the convex surface of cam 104 moves away from pulley 2014, the potential energy of third spring 2018 is released, causing telescopic frame 2011 to unfold. Third spring 2018 and cam 104 cooperate to drive telescopic frame 2011 to reciprocate and extend. Telescopic frame 2011 also drives spray head 1032 to reciprocate and spray pesticides through output pipe 1031. S3. During the reciprocating extension and retraction of the telescopic frame 2011, since one end of the rope 2021 is fixed, and in conjunction with the first torsion spring 2024, the rope disc 2022 reciprocates, causing the rope disc 2022 to drive the rotating shaft 2023 to rotate. During the forward and reverse rotation of the rotating shaft 2023, the meshing of the ratchet 2033 and the ratchet wheel 2032 alternately controls the transmission of the two first bevel teeth 2031 and the second bevel teeth 2035. The second bevel teeth 2035 drive the rotating rod 2036 to rotate, and then the third bevel teeth 2037, the fourth bevel teeth 2041 and the fifth bevel teeth 2038 drive the fifth bevel teeth 2038 to drive the spray head 1032 to rotate for pesticide spraying. At the same time, the fourth bevel teeth 2041 drive the sleeve 2043 to drive the fan blade 2042 to rotate. The fan blade 2042 accelerates the descent speed of the pesticide and improves the uniformity of pesticide spraying. Then, the drone 101 performs aerial pesticide spraying.

[0032] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pesticide injection device for forestry pest and disease control, comprising a spraying mechanism (100), characterized in that, Two spraying auxiliary mechanisms (200) are provided below the spraying mechanism (100). The spraying mechanism (100) includes a drone (101), which is equipped with a pesticide storage component (102). A cam (104) is connected to the bottom of the pesticide storage component (102). Two spraying components (103) are connected to the bottom of the pesticide storage component (102). The pesticide storage component (102) sprays pesticides through the spraying components (103) to carry out forestry pest control operations. The spraying auxiliary mechanism (200) includes a telescopic component (201), which is connected to a transmission component (203) and a rope winding component (202) respectively. The transmission component (203) is mounted on the rope winding component (202). One side of the transmission component (203) is connected to a flow guiding component (204). The transmission component (203) is also connected to a spraying component (103). The storage component (102) drives the cam (104) and cooperates with the telescopic components (201) on both sides to realize the reciprocating spraying operation of the spraying component (103). Under the reciprocating motion of the telescopic component (201), the reel component drives the transmission component (203) to drive the spraying component (103) to spray pesticides in a rotating manner. In addition, the transmission component (203) also drives the guide component (204) to accelerate the descent speed of the pesticide. The drug storage assembly (102) includes a box (1021), an alarm (1029) is fixedly installed on the top of the box (1021), two infusion tubes (10210) are arranged at the bottom of the box (1021), a piston (1022) is arranged inside the box (1021), an exhaust valve (1023) is arranged on the piston (1022), and a water level alarm structure (1028) is arranged on the piston (1022). A nut (1026) is installed on the piston (1022), and the nut (1026) is threaded onto the screw (1025). The top end of the screw (1025) is fixedly connected to the output shaft of the motor (1024). The motor (1024) is installed on the housing (1021). The screw (1025) is rotatably installed on the housing (1021) through a bearing. A stirring blade (1027) is fixedly connected to the bottom end of the screw (1025). The stirring blade (1027) is located inside the lower part of the housing (1021). The bottom end of the screw (1025) is fixedly connected to the cam (104). The telescopic assembly (201) includes a dovetail strip (2012), which is fixedly connected to the bottom of the housing (1021). A slider (2013) is slidably connected to the dovetail strip (2012), and a pulley (2014) is fixedly connected to one side of the slider (2013). The pulley (2014) contacts one side of the cam (104). The slider (2013) is hinged to the telescopic frame (2011). One axle pin of the telescopic frame (2011) extends and is fixedly connected to the dovetail strip (2012). Two axle pins of the telescopic frame (2011) are fixedly connected to the ball sleeve (2015) and the movable rod (2016) respectively. The ball sleeve (2015) is provided with the movable rod (2016). One end of the movable rod (2016) is fixedly connected to a circular block (2017). A third spring (2018) is fixedly connected between the circular block (2017) and the ball sleeve (2015). The spraying assembly (103) includes an output pipe (1031), which is connected to the bottom of the housing (1021). One end of the output pipe (1031) is also connected to a spray head (1032). The spray head (1032) is rotatably mounted on one end of the output pipe (1031) via a bearing. One end of the output pipe (1031) is a flexible hose, and the other end of the output pipe (1031) is a rigid pipe. The rigid pipe portion of the output pipe (1031) is also fixedly connected to the shaft pin connecting the telescopic frame (2011) and the movable rod (2016). The rope winding assembly (202) includes a rope reel (2022), around which a rope (2021) is wound, and one end of the rope (2021) is fixedly connected to the pivot pin of the dovetail strip (2012) of the telescopic frame (2011); The rope reel (2022) is fixedly connected to one end of the rotating shaft (2023). The rotating shaft (2023) is rotatably mounted on the fixed frame (2025) via a bearing. The fixed frame (2025) is fixedly connected to the movable rod (2016). A first torsion spring (2024) is fixedly connected to one side of the rope reel (2022). One end of the first torsion spring (2024) is fixed to the bearing on the rotating shaft (2023). The transmission assembly (203) includes a second bevel tooth (2035), a rotating rod (2036) is fixedly connected to the second bevel tooth (2035), the rotating rod (2036) is rotatably mounted on the fixed frame (2025) by bearings, a third bevel tooth (2037) is fixedly connected to one end of the rotating rod (2036), the third bevel tooth (2037) meshes with a fifth bevel tooth (2038), and the fifth bevel tooth (2038) is fixedly connected to the spray head (1032).

2. The forestry pest and disease control injection device according to claim 1, characterized in that, The water level alarm structure (1028) includes a guide sleeve (1028a), which is mounted on a piston (1022). A bracket (1028c) is slidably provided inside the guide sleeve (1028a). A switch (1028g) is installed above the bracket (1028c). A first spring (1028d) is fixedly connected between the bracket (1028c) and the piston (1022). The lower part of the switch (1028g) corresponds to the slide rod (1028f), the slide rod (1028f) is slidably connected in the slide sleeve (1028b), the slide sleeve (1028b) is mounted on the piston (1022), and a second spring (1028e) is fixedly connected between the lower part of the slide sleeve (1028b) and the bottom end of the slide rod (1028f).

3. The forestry pest and disease control injection device according to claim 2, characterized in that, The second bevel tooth (2035) meshes with two first bevel teeth (2031). The first bevel teeth (2031) are rotatably mounted on the rotating shaft (2023) via bearings. The first bevel teeth (2031) are hinged to the ratchet tooth (2033) via pins. A second torsion spring (2034) is fixedly connected between the ratchet tooth (2033) and the first bevel teeth (2031). The second torsion spring (2034) is sleeved outside the pin. The ratchet tooth (2033) meshes with a ratchet wheel (2032). The two ratchet wheels (2032) are fixedly connected to the rotating shaft (2023), and the tooth segments of the two ratchet wheels (2032) are arranged oppositely.

4. The forestry pest and disease control injection device according to claim 3, characterized in that, The flow guiding assembly (204) includes a sleeve (2043), which is rotatably mounted on the rigid part of the output pipe (1031) via a bearing. A fan blade (2042) and a fourth umbrella tooth (2041) are fixedly connected to the outside of the sleeve (2043). The fourth umbrella tooth (2041) meshes with the third umbrella tooth (2037). The fan blade (2042) is located above the spray head (1032).

5. The method of using the forestry pest and disease control injection device according to claim 4, characterized in that, Includes the following steps: S1. When spraying forestry pesticides, the drone (101) is launched into the air. After launch, the motor (1024) drives the screw (1025) to rotate, which in turn drives the stirring blade (1027) to rotate. The stirring blade (1027) stirs the pesticide, and the screw (1025) drives the nut (1026) to drive the piston (1022) to move downward. The piston (1022) then pushes the pesticide out of the box (1021) and sprays it out through the spray head (1032). S2. Secondly, the rotation of the screw (1025) also drives the cam (104) to rotate. The cam (104) squeezes the pulley (2014) to move, causing the pulley (2014) to drive the telescopic frame (2011) to retract through the slider (2013). This causes the telescopic frame (2011) to drive the slide bar (1028f) to move, causing the third spring (2018) to deform. When the convex surface of the cam (104) moves away from the pulley (2014), the potential energy of the third spring (2018) is released, causing the telescopic frame (2011) to unfold. The third spring (2018) and the cam (104) work together to drive the telescopic frame (2011) to reciprocate and extend. The telescopic frame (2011) also drives the spray head (1032) to reciprocate and spray pesticides through the output pipe (1031). S3. During the reciprocating extension and retraction of the telescopic frame (2011), since one end of the rope (2021) is fixed, and in conjunction with the first torsion spring (2024), the rope disc (2022) rotates back and forth, causing the rope disc (2022) to drive the rotating shaft (2023) to rotate. During the forward and reverse rotation of the rotating shaft (2023), the meshing of the ratchet (2033) and the ratchet wheel (2032) alternately controls the transmission of the two first bevel teeth (2031) and the second bevel teeth (2035). The second bevel teeth (2035) drive... When the rotating rod (2036) rotates, the third bevel tooth (2037) drives the fourth bevel tooth (2041) and the fifth bevel tooth (2038) to rotate, causing the fifth bevel tooth (2038) to drive the spray head (1032) to rotate for pesticide spraying. At the same time, the fourth bevel tooth (2041) drives the sleeve (2043) to rotate the fan blade (2042). The fan blade (2042) accelerates the descent speed of the pesticide and improves the uniformity of pesticide spraying. Then, the drone (101) is used to carry out aerial pesticide spraying.

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