A precision spraying device with automatic identification function for forestry

Abstract

The present application relates to the technical field of spraying device, and proposes a precision spraying device with automatic identification function for forestry, which adopts an adjustable parallelogram to form the installation and adjustment of the water outlet frame, can form corresponding irrigation operation with the need of irrigating forest seedlings, has stronger target irrigation, is more practical, has more abundant water outlet modes, and has stronger functionality, comprises two spraying units and a main unit, the main unit comprises a main frame, a water tank is fixedly arranged in the main frame, a water inlet element is arranged on the water tank, vertical mounting frames are rotatably connected to the front and rear ends of the main frame, two servo motors are installed at the bottom end of the main frame, the two servo motors are respectively used for driving the rotation of the two vertical mounting frames, parallelogram elements are installed on the two vertical mounting frames, first electric telescopic rods are installed on the two vertical mounting frames, the two first electric telescopic rods are connected with the two parallelogram elements, and the two spraying units each comprise a spraying frame.

Description

Technical Field

[0001] This invention relates to the field of spraying device technology, and specifically to a precision spraying device for forestry with automatic identification function. Background Technology

[0002] As is well known, in order to ensure the survival rate during forestry seedling cultivation, it is usually necessary to replenish water for the seedlings in the early stage of cultivation. In order to facilitate the implementation of seedling replenishment operations, reduce irrigation water consumption and improve operational efficiency, we propose a precision spraying device for forestry with automatic identification function.

[0003] A search revealed Chinese patent application CN201711077948.7, which discloses a translational variable-range sprinkler irrigation machine and its usage method. The machine generally includes a control cabinet, tires, a lifting motor and information acquisition device, a main water supply pipe, lifting ropes, and multiple spraying units. The spraying units are connected via the main water supply pipe. Each spraying unit includes a zoned unit water outlet tee, a front retractable water supply pipe, a middle retractable water supply pipe, a rear retractable water supply pipe, a front semi-circular spray nozzle, a full-circular spray nozzle, a rear semi-circular spray nozzle, zoned water supply pipes, a first vertical pipe, a second vertical pipe, a third vertical pipe, a first solenoid valve control pipe, a second solenoid valve control pipe, and a third solenoid valve control pipe. In use, it can precisely spray different crops within the controlled area according to their height and water volume requirements. To meet the water requirements of different crops at different growth stages, we also found a Chinese patent application (CN202122286246.8) that discloses a precision spraying device for forest seedling cultivation. The device is roughly described as including a fixed platform and a high-precision steering mechanism. The high-precision steering mechanism is located below the fixed platform and includes primary and secondary gimbal servo motors and a suspension. The primary gimbal servo motor is located below the fixed platform, and the secondary gimbal servo motor is located on the right side of the suspension. The suspension is U-shaped and connects both the primary and secondary gimbal servo motors. The primary and secondary gimbal servo motors work simultaneously, enabling high-precision rotation and steering of the nozzle assembly in both horizontal and vertical directions for precise spraying. The nozzle assembly is located below the high-precision steering mechanism and includes an inlet, a high-pressure water storage chamber, a flow control mechanism, a mixing chamber, and an outlet. The flow control mechanism includes a servo motor and an electric slide valve, which can precisely control the flow rate and pressure.

[0004] While the aforementioned existing technical solutions can be used as spraying devices for irrigation of forest seedlings, the solution with application number CN201711077948.7 only designs a nozzle structure, and the solution with application number CN202122286246.8 provides a spraying method with a large-span travel structure, which is suitable for relatively flat environments, but its applicability to sloping mountain structures needs to be further improved. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a precision spraying device for forestry with automatic identification function. It adopts an adjustable parallelogram component to form an adjustable water outlet frame, which can be matched with the seedlings that need irrigation to form corresponding irrigation operations. The irrigation is more targeted and practical, and the water outlet mode is more diverse and the functionality is stronger.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a precision spraying device for forestry with automatic identification function, comprising two spraying units and a main body unit. The main body unit includes a main frame, within which a water tank is fixedly installed. A water inlet is provided on the water tank. Vertical mounting frames are rotatably connected to both the front and rear ends of the main frame. Two servo motors are installed at the bottom of the main frame, each servo motor driving the rotation of one of the two vertical mounting frames. Parallelogram components are installed on each of the two vertical mounting frames, and first electric telescopic rods are installed on each of the two vertical mounting frames. The two first electric telescopic rods are respectively connected to the two parallelogram components. Each of the two spraying units includes a spraying frame, and the two spraying frames are... The two sprayers are not connected to the two parallelogram-shaped components. A connecting spring is fixedly connected to the bottom of each of the two sprayers. A water outlet frame is fixedly connected to the bottom of each of the two connecting springs. Each of the two water outlet frames has a first water outlet hole and a second water outlet hole. A water inlet pipe is connected to each of the two water outlet frames. Both water inlet pipes are connected to the water tank, and a solenoid valve is installed on each water inlet pipe. A light sensor is installed on each of the two water outlet frames. A light-receiving end is installed on each of the two sprayers. Each light-receiving end is matched with one of the two light sensors. A camera is installed at the bottom of each of the two light sensors. An offset rod is fixedly connected to each of the two water outlet frames. The two offset rods are matched with one of the two sprayers. An expansion structure is installed on each of the two water outlet frames.

[0009] Preferably, both of the expansion structures include a first spray bar and a second spray bar. The two first spray bars are rotatably connected to the two water outlet frames, and the two second spray bars are rotatably connected to the two water outlet frames. Each of the two first spray bars has a first docking hole, which matches the two first water outlet holes. Each of the two second spray bars has a second docking hole, which matches the two second water outlet holes. The bottom ends of both the two first spray bars and the two second spray bars are provided with multiple mist discharge holes. Each of the two first spray bars is equipped with two permanent magnets, and each of the two second spray bars is equipped with two electromagnets, which match the two permanent magnets.

[0010] Preferably, each of the two first spray bars is connected to a first return spring, and the two first return springs are respectively connected to the two water outlet frames. Each of the two second spray bars is connected to a second return spring, and the two second return springs are respectively connected to the two water outlet frames.

[0011] Preferably, each of the two parallelogram components includes a first swing cylinder and a second swing cylinder. The two first swing cylinders are rotatably connected to the two vertical mounting frames, and the two second swing cylinders are rotatably connected to the two vertical mounting frames. The two first electric telescopic rods are hinged to the two second swing cylinders. A first telescopic rod is slidably connected inside each of the two first swing cylinders. The two first telescopic rods are rotatably connected to the two spray frames. A second telescopic rod is slidably connected inside each of the two second swing cylinders. The two second telescopic rods are rotatably connected to the two spray frames. A synchronization frame is hinged to each of the two first swing cylinders. The two synchronization frames are rotatably connected to the two second swing cylinders. A second electric telescopic rod is rotatably connected to each of the two synchronization frames. The telescopic rods of the two second electric telescopic rods are hinged to the two spray frames.

[0012] Preferably, the water inlet component includes a rotating pipe and a water inlet pipe. The water tank has a recessed groove, the rotating pipe is rotatably connected in the recessed groove, and the rotating pipe is in communication with the interior of the water tank. The water inlet pipe is in communication with the rotating pipe, and a combination cap is installed on the water inlet pipe.

[0013] Preferably, the combined cap includes an internally threaded cap, the water inlet pipe is provided with an external thread that matches the internally threaded cap, the internally threaded cap is provided with a vent hole, and a sealing plate is slidably connected inside the internally threaded cap. The sealing plate is provided with a misaligned hole that matches the vent hole, and an elastic spring is fixedly connected to the sealing plate. The elastic spring is fixedly connected inside the internally threaded cap.

[0014] Preferably, a support frame is fixedly connected inside the main frame, the support frame is located at the bottom of the water tank, a storage battery is installed inside the main frame, the storage battery is located below the support frame, a compression pump is installed at the bottom end of the support frame, the output end of the compression pump is connected to a bend pipe, the bend pipe extends into the water tank, and the storage battery is used to supply power to the servo motor, the first electric telescopic rod, the second telescopic rod and the electromagnet.

[0015] Preferably, hooks are fixedly connected to the top four corners of the main frame, and mounting brackets are provided at the bottom four corners of the main frame, with mounting holes provided on each of the four mounting brackets.

[0016] Preferably, a drive bevel gear is mounted on the conveyor shaft of the servo motor, and both drive bevel gears mesh with driven bevel gears. The two driven bevel gears are respectively fixedly connected to the bottom ends of the two vertical mounting frames.

[0017] Preferably, two protective vertical bars are fixedly connected to each of the four top corners of the main frame.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a precision spraying device for forestry with automatic identification function, which has the following beneficial effects:

[0020] 1. In this invention, the design of the spraying unit forms a spraying functional structure. An adjustable parallelogram component is used to form an adjustable water outlet frame, which can be matched with the seedlings that need irrigation to form a corresponding irrigation operation, making the irrigation target more targeted.

[0021] 2. In this invention, the design of the main unit forms an installation structure for two spraying units, and at the same time forms the matching water supply and adjustment functions of the two spraying units, which is more practical.

[0022] 3. In this invention, by designing an expanded surface structure, while ensuring the basic irrigation function of the water outlet frame, an adjustable atomizing structure is added to facilitate atomized water spraying, resulting in more diverse water outlet methods, a further increased atomization area, and enhanced functionality. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0024] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0025] Figure 3 For the present invention Figure 1 A magnified view of the structure at point B in the middle;

[0026] Figure 4 This is a three-dimensional structural diagram showing the assembly of the rotating pipe, water inlet pipe, and internal thread cap of the present invention.

[0027] Figure 5 This is a partial cross-sectional three-dimensional structural schematic diagram of the internal thread cap, sealing plate, and elastic spring of the present invention.

[0028] Figure 6 This is a three-dimensional structural diagram of the entire invention viewed from below;

[0029] Figure 7 For the present invention Figure 6A magnified schematic diagram of the local structure at point C;

[0030] Figure 8 For the present invention Figure 6 A magnified schematic diagram of the local structure at point D;

[0031] Figure 9 This is a three-dimensional structural diagram of the invention viewed from a downward angle.

[0032] Figure 10 For the present invention Figure 10 A magnified schematic diagram of the local structure at point E;

[0033] Figure 11 For the present invention Figure 10 A magnified schematic diagram of the local structure at point F;

[0034] Figure 12 This is a three-dimensional structural diagram of the second spray bar of the present invention;

[0035] Figure 13 This is a schematic diagram of a three-dimensional structure in which the water outlet frame of the present invention is inserted into the irrigation pipe.

[0036] In the diagram: 1. Main frame; 2. Water tank; 3. Vertical mounting frame; 4. Servo motor; 5. First electric telescopic rod; 6. Sprayer frame; 7. Connecting spring; 8. Water outlet frame; 9. First water outlet; 10. Second water outlet; 11. Water inlet pipe; 12. Light sensor; 13. Light receiving end; 14. Offset rod; 15. First spray bar; 16. Second spray bar; 17. First docking hole; 18. Second docking hole; 19. Mist exhaust eye; 20. Permanent magnet; 21. Electromagnet; 22. First return spring; 23. Second return spring; 24. First... 25. Swing cylinder; 26. Second swing cylinder; 27. First telescopic rod; 28. Second telescopic rod; 29. ​​Synchronous frame; 30. Second electric telescopic rod; 31. Rotating pipe; 32. Water inlet pipe; 33. Recessed groove; 34. Internal thread cap; 35. Vent hole; 36. Sealing plate; 37. Misalignment hole; 38. Elastic spring; 39. Support frame; 40. Battery; 41. Compressor pump; 42. Bend pipe; 43. Hook ring; 44. Mounting bracket; 45. Mounting hole; 46. Drive bevel gear; 47. Driven bevel gear; 48. Protective vertical rod. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example

[0039] Please see Figures 1-13A precision spraying device for forestry with automatic identification function includes two spraying units and a main unit. The main unit includes a main frame 1, within which a water tank 2 is fixedly installed. The water tank 2 has a water inlet component, which includes a rotating pipe 30 and an inlet pipe 31. A recessed groove 32 is formed on the water tank 2, and the rotating pipe 30 is rotatably connected to the recessed groove 32 and communicates with the interior of the water tank 2. The inlet pipe 31 communicates with the rotating pipe 30 and is equipped with a combined cap, including an internally threaded cap 33. The inlet pipe 31 has an external thread matching the internally threaded cap 33. A vent 34 is formed on the internally threaded cap 33, and a sealing plate 35 is slidably connected within the internally threaded cap 33. The sealing plate 35 has a venting hole 34. The misaligned hole 36 matches the hole 34. An elastic spring 37 is fixedly connected to the sealing plate 35. The elastic spring 37 is fixedly connected inside the internal thread cap 33. The combined cap can achieve the sealing or ventilation of the water inlet pipe 31. Vertical brackets 3 are rotatably connected to both the front and rear ends of the main frame 1. Two servo motors 4 are installed at the bottom of the main frame 1. Drive bevel gears 45 are installed on the conveying shaft of the servo motors 4. Both drive bevel gears 45 mesh with driven bevel gears 46. The two driven bevel gears 46 are fixedly connected to the bottom ends of the two vertical brackets 3 respectively. The two servo motors 4 are used to drive the rotation of the two vertical brackets 3 respectively. Parallelogram parts are installed on both vertical brackets 3. First electric telescopic rods 5 are installed on both vertical brackets 3. The two first electric telescopic rods 5 are divided into Instead of connecting with two parallelogram components, the main unit design forms an installation structure for two spraying units, simultaneously providing water supply and adjustment functions for both units, making it more practical. Each spraying unit includes a spray frame 6, which is connected to two parallelogram components. A connecting spring 7 is fixedly connected to the bottom of each spray frame 6, and a water outlet frame 8 is fixedly connected to the bottom of each connecting spring 7. Each water outlet frame 8 has a first water outlet hole 9 and a second water outlet hole 10. A water inlet pipe 11 connects to each water outlet frame 8, and both water inlet pipes 11 are connected to a water tank 2. A solenoid valve is installed on each water inlet pipe 11. A light sensor 12 is installed on each water outlet frame 8, and a light-receiving end 13 is installed on each spray frame 6. Each light-receiving end 13 is matched with two light sensors 12, and a camera is installed at the bottom of each light sensor 12. An offset rod 14 is fixedly connected to each of the two water outlet frames 8, and the two offset rods 14 are matched with two spray frames 6. Each of the two parallelogram components includes a first swing cylinder 24 and a second swing cylinder 25. The two first swing cylinders 24 are rotatably connected to the two vertical frames 3, and the two second swing cylinders 25 are rotatably connected to the two vertical frames 3. Two first electric telescopic rods 5 are hinged to the two second swing cylinders 25. A first telescopic rod 26 is slidably connected inside each of the two first swing cylinders 24, and the two first telescopic rods 26 are rotatably connected to the two spray frames 6. A second telescopic rod 27 is slidably connected inside each of the two second swing cylinders 25.Two second telescopic rods 27 are rotatably connected to two spray frames 6, respectively. Two first swing cylinders 24 are each hinged to a synchronous frame 28, which is rotatably connected to two second swing cylinders 25. Two second electric telescopic rods 29 are rotatably connected to each synchronous frame 28. The telescopic rods of the two second electric telescopic rods 29 are hinged to the two spray frames 6. Through the design of the spray unit, a spraying functional structure is formed. Adjustable parallelogram components are used to form the installation and adjustability of the water outlet frame 8, enabling it to be matched with the seedlings requiring irrigation to form corresponding irrigation operations, resulting in more targeted irrigation.

[0040] It should be further explained that both water outlet frames 8 are equipped with expansion structures, each including a first spray bar 15 and a second spray bar 16. The two first spray bars 15 are rotatably connected to the two water outlet frames 8, and the two second spray bars 16 are rotatably connected to the two water outlet frames 8. Each of the two first spray bars 15 has a first mating hole 17, which matches the two first water outlet holes 9. Each of the two second spray bars 16 has a second mating hole 18, which matches the two second water outlet holes 10. The bottom ends of the two first spray bars 15 and the bottom ends of the two second spray bars 16... Each end is equipped with multiple mist discharge holes 19. Two permanent magnets 20 are mounted on each of the two first spray bars 15, and two electromagnets 21 are mounted on each of the two second spray bars 16. The two electromagnets 21 are matched with the two permanent magnets 20. A first return spring 22 is connected to each of the two first spray bars 15, and the two first return springs 22 are connected to the two water outlet frames 8 respectively. A second return spring 23 is connected to each of the two second spray bars 16, and the two second return springs 23 are connected to the two water outlet frames 8 respectively. Through the design of the expanded surface structure, while ensuring the water outlet frames 8 provide the basic irrigation function, an adjustable atomizing structure is added to facilitate atomized spraying. The water outlet offers more diverse water output methods, with a further increased atomization area and enhanced functionality. A support frame 38 is fixedly connected inside the main frame 1, located at the bottom of the water tank 2. A battery 39 is installed inside the main frame 1, positioned below the support frame 38. A compressor pump 40 is installed at the bottom of the support frame 38, with its output end connected to a bend pipe 41 extending into the water tank 2. The battery 39 supplies power to the servo motor 4, the first electric telescopic rod 5, the second telescopic rod 27, and the electromagnet 21. Hook rings 42 are fixedly connected to the four corners of the top of the main frame 1, allowing for connection via hooks. The design of the hanging ring 42 enables the forestry precision spraying device with automatic identification function to take off and suspend for irrigation via flying devices such as drones. Two protective vertical rods 47 are fixedly connected to the top four corners of the main frame 1, and the matching hooks and hanging rings 42 form protection. Mounting brackets 43 are provided at the bottom four corners of the main frame 1. Each of the four mounting brackets 43 is provided with mounting holes 44, which facilitates the installation of the forestry precision spraying device with automatic identification function relative to structures such as vehicles, so as to achieve the displacement and movement of the forestry precision spraying device with automatic identification function on the ground.

[0041] In this embodiment, the servo motor 4, the first electric telescopic rod 5, the electromagnet 21, the second electric telescopic rod 29, the battery 39, and the compressor pump 40 are all commercially available, conventional devices known to those skilled in the art. In this invention, we simply use them without modifying their structure or function. Their setting method, installation method, and electrical connection method can be easily understood by those skilled in the art by following the instructions for use. Therefore, we will not elaborate on them here. Furthermore, the servo motor 4, the first electric telescopic rod 5, the electromagnet 21, the second electric telescopic rod 29, and the compressor pump 40 are equipped with a control terminal. The power-on operation of the servo motor 4, the first electric telescopic rod 5, the electromagnet 21, the second electric telescopic rod 29, and the compressor pump 40 is controlled by the command input of the control terminal.

[0042] In summary, the working process of this precision spraying device with automatic identification function for forestry is as follows: First, the device is aligned and installed according to its corresponding movement method. Through the design of the hook ring 42, it can be launched and suspended for irrigation using a flying device such as a drone. The mounting bracket 43 facilitates the installation of the device relative to structures such as vehicles, allowing it to move and move on the ground. Water is then added to the water tank 2 for irrigation. During water addition, the internal thread cap 33 is removed from the water inlet pipe 31. After water addition, the internal thread cap 33 is reinstalled relative to the water inlet pipe 31. When the required irrigation water flow is small, only the sealing plate 35 needs to contact the water inlet pipe 31 to ensure that the vent 34 and the misalignment hole 36 can... Air is introduced into water tank 2. During irrigation, the water in water tank 2 flows into the water inlet pipe 11 by its own gravity and eventually enters the water outlet frame 8. Appropriate water flow can reduce the loss of soil covering the roots of the seedlings. When the water demand for irrigation is large, the inner thread cap 33 needs to be adjusted so that the sealing plate 35 inside the inner thread cap 33 overcomes the elastic force of the elastic spring 37 and forms contact with the inner thread cap 33, so that the vent hole 34 and the misalignment hole 36 form a relatively closed space, creating a relatively sealed space inside water tank 2. Air is pumped into water tank 2 by the compressor pump 40, increasing the pressure inside water tank 2, so that the water in water tank 2 is forced out, thereby increasing the flow rate of water entering the water inlet pipe 11 and increasing the water flow rate per unit time in the water outlet frame 8. In actual situations, in order to ensure precise irrigation of the seedlings and reduce soil erosion during irrigation, the irrigation pipe is pre-buried when covering the seedlings with soil. During actual irrigation, the positions of the first spray bar 15 and the second spray bar 16 relative to the water outlet frame 8 are adjusted as shown in the attached figure. Figure 2 and attached Figure 7As shown in the diagram, in this state, the electromagnets 21 on the first spray bar 15 and the second spray bar 16 are de-energized. There is no mutual magnetic interaction between the electromagnet 21 and the matching permanent magnet 20. The first spray bar 15 and the second spray bar 16 are respectively positioned relative to each other by the corresponding first return spring 22 and second return spring 23. The relative position of the water outlet frame 8 relative to the irrigation pipe is identified by controlling the camera at the bottom of the light sensor 12. The first electric telescopic rod 5 and the second electric telescopic rod 29 operate synchronously relative to each other to adjust and control the relative position of the water outlet frame 8 relative to the irrigation pipe. When the bottom of the water outlet frame 8... The protruding part of the end enters the irrigation pipe, and the water outlet pipe and the irrigation frame form a certain relative pushing force, causing the connecting spring 7 to deform. This causes the relative position of the water outlet frame 8 and the spray frame 6 to change, rendering the light-receiving end 13 ineffective in receiving the light emitted by the light sensor 12. Subsequently, the solenoid valve opens the passage on the water inlet pipe 11, and the water in the water tank 2 is guided sequentially through the water inlet pipe 11 and the water outlet frame 8, then flows through the first water outlet hole 9 and the second water outlet hole 10 into the irrigation pipe, thus completing the irrigation operation for the seedlings. When the positions of the first spray bar 15 and the second spray bar 16 relative to the water outlet frame 8 are adjusted as shown in the attached diagram... Figure 3 In the state shown, water discharged from the first water outlet 9 and the second water outlet 10 enters the first spray bar 15 and the second spray bar 16, and is finally discharged through the mist outlet 19, achieving atomized spraying of water in the water tank 2. In this state, the corresponding electromagnet 21 is energized to generate an electromagnetic field. This electromagnetic field forms a mutual magnetic attraction with the corresponding permanent magnet 20. This relative magnetic attraction overcomes the elastic force of the first return spring 22 and the second return spring 23, causing the first spray bar 15 and the second spray bar 16 to be relatively extended, thereby achieving the effect shown in the attached diagram. Figure 3 The state shown is entered and maintained. In this state, the solenoid valve is no longer controlled by the corresponding detection signal between the light sensor 12 and the light receiving end 13. Instead, the solenoid valve is directly controlled by the control terminal to control the on / off state.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision spraying device for forestry with automatic identification function, comprising two spraying units, characterized in that, It also includes a main unit, which includes a main frame (1), a water tank (2) fixedly installed inside the main frame (1), a water inlet on the water tank (2), and vertical brackets (3) rotatably connected to both ends of the main frame (1). Two servo motors (4) are installed at the bottom of the main frame (1). The two servo motors (4) are used to drive the rotation of the two vertical brackets (3). Parallelograms are installed on both vertical brackets (3). First electric telescopic rods (5) are installed on both vertical brackets (3). The two first electric telescopic rods (5) are connected to the two parallelograms respectively. Both spraying units include spraying frames (6). The two spraying frames (6) are connected to the two parallelograms respectively. Connecting springs (7) are fixedly connected to the bottom of both spraying frames (6). The bottom end of the connecting spring (7) is fixedly connected to a water outlet frame (8). The two water outlet frames (8) are provided with a first water outlet hole (9) and a second water outlet hole (10). The two water outlet frames (8) are connected to a water inlet pipe (11). The two water inlet pipes (11) are connected to the water tank (2). A solenoid valve is installed on the water inlet pipe (11). The two water outlet frames (8) are equipped with a light sensor (12). The two spray frames (6) are equipped with a light receiving end (13). The two light receiving ends (13) are matched with the two light sensors (12). The bottom end of the two light sensors (12) is equipped with a camera. The two water outlet frames (8) are fixedly connected to an offset rod (14). The two offset rods (14) are matched with the two spray frames (6). The two water outlet frames (8) are equipped with an expansion structure. Both of the aforementioned expansion structures include a first spray bar (15) and a second spray bar (16). The two first spray bars (15) are rotatably connected to the two water outlet brackets (8), and the two second spray bars (16) are rotatably connected to the two water outlet brackets (8). Each of the two first spray bars (15) has a first docking hole (17) that matches the two first water outlet holes (9). Each of the two second spray bars (16) has a second docking hole (18) that matches the two second water outlet holes (10). The two first spray bars (15) and the two second spray bars (16) are equipped with multiple mist discharge holes (19) at their bottom ends. Two permanent magnets (20) are mounted on each of the two first spray bars (15), and two electromagnets (21) are mounted on each of the two second spray bars (16). Each electromagnet (21) is matched with one of the two permanent magnets (20). A first return spring (22) is connected to each of the two first spray bars (15), and the two first return springs (22) are connected to the two water outlet frames (8). Each of the two second spray bars (16) is connected with... The second return spring (23) is connected to the two water outlet brackets (8) respectively. The two parallelogram components each include a first swing cylinder (24) and a second swing cylinder (25). The two first swing cylinders (24) are rotatably connected to the two vertical brackets (3) respectively. The two second swing cylinders (25) are rotatably connected to the two vertical brackets (3) respectively. The two first electric telescopic rods (5) are hinged to the two second swing cylinders (25) respectively. The two first swing cylinders (24) each have a first telescopic rod (26) slidably connected inside. The two first telescopic rods (26) 26) Each of the two sprayers (6) is rotatably connected to the two sprayers (6). Each of the two second swing cylinders (25) is slidably connected to a second telescopic rod (27). Each of the two second telescopic rods (27) is rotatably connected to the two sprayers (6). Each of the two first swing cylinders (24) is hinged to a synchronous frame (28). Each of the two synchronous frames (28) is rotatably connected to the two second swing cylinders (25). Each of the two synchronous frames (28) is rotatably connected to a second electric telescopic rod (29). The telescopic rods of the two second electric telescopic rods (29) are hinged to the two sprayers (6).

2. A precision spraying device for forestry with automatic identification function according to claim 1, characterized in that, The water inlet includes a rotating pipe (30) and a water inlet pipe (31). A recessed groove (32) is provided on the water tank (2). The rotating pipe (30) is rotatably connected in the recessed groove (32) and the rotating pipe (30) is connected to the interior of the water tank (2). The water inlet pipe (31) is connected to the rotating pipe (30) and a combination cap is installed on the water inlet pipe (31).

3. A precision spraying device for forestry with automatic identification function according to claim 2, characterized in that, The combined cap includes an internal thread cap (33), and the water inlet pipe (31) is provided with an external thread that matches the internal thread cap (33). The internal thread cap (33) is provided with a vent hole (34), and a sealing plate (35) is slidably connected inside the internal thread cap (33). The sealing plate (35) is provided with a misaligned hole (36) that matches the vent hole (34). An elastic spring (37) is fixedly connected to the sealing plate (35), and the elastic spring (37) is fixedly connected inside the internal thread cap (33).

4. A precision spraying device for forestry with automatic identification function according to claim 3, characterized in that, A support frame (38) is fixedly connected inside the main frame (1). The support frame (38) is located at the bottom of the water tank (2). A storage battery (39) is installed inside the main frame (1). The storage battery (39) is located below the support frame (38). A compression pump (40) is installed at the bottom end of the support frame (38). The output end of the compression pump (40) is connected to a bend pipe (41). The bend pipe (41) extends into the water tank (2). The storage battery (39) is used to supply power to the servo motor (4), the first electric telescopic rod (5), the second telescopic rod (27), and the electromagnet (21).

5. A precision spraying device for forestry with automatic identification function according to claim 4, characterized in that, Hook rings (42) are fixedly connected to the top four corners of the main frame (1), and mounting brackets (43) are provided at the bottom four corners of the main frame (1). Mounting holes (44) are provided on the four mounting brackets (43).

6. A precision spraying device for forestry with automatic identification function according to claim 5, characterized in that, The servo motor (4) has a drive bevel gear (45) mounted on its conveying shaft. Both drive bevel gears (45) are meshed with driven bevel gears (46). The two driven bevel gears (46) are respectively fixedly connected to the bottom ends of the two vertical mounting frames (3).

7. A precision spraying device for forestry with automatic identification function according to claim 6, characterized in that, Two protective vertical rods (47) are fixedly connected at the top four corners of the main frame (1).

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