Air-assisted spraying method and spraying device in facility

Abstract

The device comprises a guide rail, a driving wheel is arranged on the guide rail in a rolling mode, and the lower portions of the two ends of the driving wheel are rotationally connected with a frame; the driving mechanism is arranged in the frame and comprises a battery arranged in the frame, and a filtering assembly is further arranged on one side of the battery; the spraying assembly comprises paddles, and the paddles are arranged on one side of the frame and used for conducting air conveying on the interior of the facility; a distance sensor and a formula programming model are arranged in a fan motor, the spraying amount and the air volume can be automatically adjusted according to the real-time distance between a spray head and a crop canopy, the spraying amount and the air volume are decreased at a short distance and increased at a long distance, a directional wind field is formed in cooperation with rotation of paddles, and the environment pollution and the human body contact risk are reduced. The invention belongs to the field of air-assisted spraying methods and spraying devices in facilities, and particularly relates to an air-assisted spraying method and spraying device in facilities. The problems of large pesticide application amount, low pesticide utilization rate and unstable pesticide application effect in the current market are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air-conveying spraying in facilities, and specifically refers to an air-conveying spraying method and a spraying device in facilities. Background Art

[0002] In facility agriculture production, pest and disease control is crucial to ensuring crop yield and quality. Pesticide spraying is a key link in pest and disease control, and there are many problems that need to be solved in the plant protection machinery and application methods used.

[0003] Manually operated small-scale spraying equipment, such as backpack sprayers and motorized spray guns, is extremely labor-intensive. For example, a single application of pesticides in a 3-mu solar greenhouse can take three to four hours, and the operator must carry a 30kg load and walk over 20,000 steps, placing a significant strain on their physical stamina. Furthermore, manual application is plagued by large application volumes and low pesticide utilization. Due to individual variability, pesticide application results can be inconsistent. To ensure efficacy, farmers are forced to increase application rates, which in turn leads to the rapid development of resistance in insects such as spider mites, thrips, and whiteflies, creating a vicious cycle. Furthermore, farmers are exposed to pesticides for extended periods during application, severely impacting their health and quality of life. Furthermore, inefficient plant protection operations limit farmers' ability to grow crops and hinder large-scale agricultural operations. To address these issues, advanced and efficient spraying equipment, such as self-propelled ground sprayers, overhead rail sprayers, and fixed-pipe spray systems, have emerged on the market. Many of these machines can be remotely controlled, enabling the separation of operator and pesticide use and improving operational efficiency. However, they still cannot completely replace manual operations, and there is a problem of uneven pesticide deposition inside the facilities. In particular, the back of the leaves is a key area for pest and disease control, where insufficient pesticide deposition affects the effect of pesticide application.

[0004] Therefore, it is urgent to develop an air-assisted spraying method and device for in-facility spraying that can achieve uniform pesticide application across the entire planting area, increase pesticide deposition on the back of leaves, improve operational efficiency, and ensure operator safety. The in-facility air-assisted spraying method and device of the present invention utilize a suspended rail-type operation method and an air-assisted spraying method, which is expected to address the shortcomings of existing technologies and enhance the level of plant protection in facility agriculture. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an air-conveying spraying method and a spraying device within the facility, which effectively solves the problems of large application amount, low pesticide utilization rate and unstable application effect in the current market.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes an air-transported spraying method and a spraying device in a facility, comprising a guide rail, a driving wheel is provided on the guide rail, and a frame is rotatably connected below both ends of the driving wheel; The driving mechanism is arranged inside the frame, including a battery arranged inside the frame, and a filter assembly is also provided on one side of the battery; The spray assembly, including paddles, is arranged on one side of the frame and is used to deliver air to the interior of the facility.

[0007] A control system is also arranged on one side of the driving mechanism for driving the blades.

[0008] Furthermore, the filter assembly includes: The medicine box is arranged inside the frame, and a medicine injection hole is fixed on the top of the medicine box for injecting medicine; The filter is fixedly connected to the bottom of the medicine box and is used to filter the medicine.

[0009] Furthermore, the control system includes: A swing motor is fixedly arranged on one side of the internal battery of the frame; A swing arm, fixedly connected to an output end of the swing motor, for swinging; The liquid pump is fixedly connected to one side of the battery.

[0010] Furthermore, the spray assembly further includes: A spray head is fixedly arranged at the end of the swing arm away from the frame and is used to spray pesticides; The fan motor is fixed above the nozzle and is used to deliver air to the facility; The paddle is fixedly connected to the output end of the fan motor and is used to blow the sprayed medicine when it rotates; The size of the mist droplets sprayed from the nozzle is less than 100 μm.

[0011] Furthermore, one end of the liquid pump is fixedly connected to the filter, and the other end is connected above the nozzle for transmitting the liquid medicine.

[0012] Furthermore, the fan motor can be configured with a distance sensor or a formula model programming function. When the distance between the nozzle and the crop canopy is close, the nozzle and the fan motor will automatically reduce the spray volume and air volume, and when the distance between the nozzle and the crop canopy is far, the spray volume and air volume will be automatically increased, thereby ensuring uniform spraying of the droplets.

[0013] Furthermore, there are two groups of driving wheels, both of which slide above the guide rail.

[0014] Furthermore, step one: start the battery to drive the two sets of driving wheels to move on the guide rails, thereby driving the frame to move.

[0015] Step 2: Start the swing motor inside the frame to drive the swing arm to rotate, and then the swing arm is connected to the fan motor to drive the paddle to swing.

[0016] Step 3: After starting the fan motor, the pulp sheet rotates, and after the medicine is injected into the medicine box, the battery drives the liquid pump to extract the medicine in the medicine box. After the medicine passes through the filter, it is transmitted to the nozzle and then sprayed. The beneficial effects achieved by the present invention using the above structure are as follows: 1. The propeller is driven by a swinging motor to optimize the precise matching of the airflow and the pesticide droplets. The disturbance and transport of the airflow are used to increase the amount of pesticide droplets deposited on the back of the crop leaves, solve the problem of uneven pesticide deposition, stabilize the pesticide application effect, reduce the instability of the drug effect caused by individual differences, and improve the utilization rate of pesticides.

[0017] 2. Through the built-in distance sensor and formula programming model of the fan motor, the spray volume and air volume can be automatically adjusted according to the real-time distance between the nozzle and the crop canopy, reducing the spray volume at close distances and increasing it at long distances. Combined with the rotation of the blades, a directional wind field is formed, and the droplet size is controlled below 100μm, so that the droplets are evenly attached to the front and back of the crop leaves, reducing the drift loss of the liquid medicine and reducing the risk of environmental pollution and human contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall schematic diagram of the air-conveying spraying method and spraying device in a facility proposed by the present invention; Figure 2 This is a schematic diagram of the working status of the air-conveying spray method and spray device in the facility proposed by the present invention.

[0019] Among them, 1. frame; 2. driving mechanism; 21. battery; 22. filter; 23. medicine box; 3. guide rail; 4. driving wheel; 5. control system; 51. swing motor; 52. liquid pump; 53. swing arm; 6. spray assembly; 61. fan motor; 62. nozzle; 63. blade.

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0023] like Figure 1-Figure 2 As shown, the present invention proposes a method and device for air-delivered spraying within a facility. The method and device include a guide rail 3 with a rolling drive wheel 4 mounted on the guide rail 3. A frame 1 is rotatably connected below each end of the drive wheel 4. A drive mechanism 2 is disposed within the frame 1 and includes a battery 21 disposed therein, with a filter assembly also provided on one side of the battery 21. A spray assembly 6, including paddles 63, is disposed on one side of the frame 1 and is used to deliver air to the interior of the facility. A control system 5 is also disposed on one side of the drive mechanism 2 to drive the paddles 63.

[0024] It should be noted that the driving wheel 4 rolls on the guide rail 3 to drive the frame 1 to move, the battery 21 supplies power to the entire machine, the filter assembly filters the medicine, and the control system 5 controls the operation of components such as the blades 63 to realize the movement of the entire machine on the guide rail 3, providing a control basis for the spraying operation.

[0025] Specifically, the filtering assembly includes: a medicine box 23, which is arranged inside the frame 1, and a medicine injection hole is fixedly provided above the medicine box 23 for injecting medicine; a filter 22, which is fixedly connected to the bottom of the medicine box 23 and is used to filter the medicine.

[0026] It should be noted that the medicine is injected into the medicine box 23 from the medicine injection hole, filtered by the filter 22 and then flows out of the medicine box 23, so as to ensure that the medicine entering the subsequent spraying link is clean and avoid impurities affecting the spraying effect and equipment operation.

[0027] Specifically, the control system 5 includes: a swing motor 51, which is fixedly arranged on one side of the internal battery 21 of the frame 1; a swing arm 53, which is fixedly connected to the output end of the swing motor 51 and is used for swinging; and a liquid pump 52, which is fixedly connected to one side of the battery 21.

[0028] In the present invention, the swing motor 51 drives the swing arm 53 to swing, and the liquid pump 52 works under the control of the control system 5 to transport the liquid medicine. The position of the nozzle is adjusted by the swing of the swing arm 53, and the liquid pump 52 realizes the transportation of the liquid medicine to prepare for the spraying operation.

[0029] Specifically, the spraying assembly 6 also includes: a nozzle 62, which is fixedly arranged at the end of the swing arm 53 away from the frame 1 and is used to spray pesticides; a fan motor 61, which is fixedly arranged above the nozzle 62 and is used to deliver air to the facility; a paddle 63, which is fixedly connected to the output end of the fan motor 61 and is used to blow the sprayed medicine when rotating; the size of the droplets sprayed by the nozzle 62 is less than 100 μm.

[0030] It should be noted that the fan motor 61 drives the blades 63 to rotate to generate airflow, and the liquid pump 52 delivers the liquid medicine to the nozzle 62 for spraying. The airflow blows the droplets to the crops, achieving uniform spraying of the droplets and improving the coverage effect of the pesticide. The size of the droplets is less than 100 μm. When the nozzle is close to the crops, the spray volume and wind intensity are reduced. When the nozzle is far away from the crops, the spray volume and wind intensity are increased, thereby achieving uniform spraying over the entire area.

[0031] Specifically, one end of the liquid pump 52 is fixedly connected to the filter 22 , and the other end is connected above the nozzle 62 for transmitting the liquid medicine.

[0032] It should be noted that the liquid medicine in the medicine box 23 is sucked by the battery 21, and the liquid medicine is first filtered by the filter 22, and then delivered or pressurized to the nozzle 62 by the liquid pump 52. Changing the liquid supply of the liquid pump 52 can change the spray volume of the nozzle; When the liquid pump 52 is working, it sucks the liquid medicine filtered by the filter 22 and pressurizes it to the nozzle 62, providing the nozzle 62 with liquid medicine with a certain pressure to ensure that the nozzle 62 sprays normally.

[0033] Specifically, the fan motor 61 may be configured with a distance sensor or a formula model programming function. When the nozzle 62 is close to the crop canopy, the nozzle 62 and the fan motor 61 will automatically reduce the spray volume and the wind volume. When the nozzle 62 is far from the crop canopy, the nozzle 62 and the fan motor 61 will automatically increase the spray volume and the wind volume, thereby ensuring uniform spraying of the droplets.

[0034] In the present invention, there are two methods for spraying crops. A distance sensor and a formula model programming function can be used for real-time monitoring to adjust the wind speed and spray volume according to different distances. The increase and decrease of the wind volume programmed by the distance sensor and the formula model are accurately calculated. When the nozzle is close to the crop canopy, the spray volume and wind volume are reduced to prevent damage to the crops. When the nozzle is far from the canopy, the spray volume and wind volume are increased, thereby achieving precise spraying, saving medicine and reducing adverse effects on crops.

[0035] Specifically, there are two groups of driving wheels 4 , both of which slide above the guide rail 3 .

[0036] It should be noted that the driving wheel 4 rolls on the guide rail 3 driven by the motor, and the distance sensor can record the rotation data in combination with the encoder, and convert the travel distance through a mathematical formula, so that the spray volume is reduced when the nozzle is close to the crop canopy, and the spray volume is increased when it is far away from the canopy; this process can not only provide position information and movement basis for the precise movement control of the entire machine on the guide rail 3, but also achieve precise spraying through parameter changes.

[0037] The control system 5 consists of a whole machine control module and a communication module. The control module controls the drive wheel 4, liquid pump 52, swing motor 51, fan motor 61, etc. The communication module realizes the communication between the whole machine and the remote control system. The remote control system controls the operation of the whole machine through a wireless network using a remote control or a mobile phone or other smart terminal.

[0038] It should be noted that one or two spraying assemblies 6 can be installed. When two are installed, the two spray assemblies deliver the spray simultaneously, with opposite swing directions and the same swing speed.

[0039] Specifically, step one: start the battery 21 to drive the two sets of driving wheels 4 to move on the guide rail 3, and then drive the frame 1 to move; step two: start the swing motor 51 inside the frame 1, drive the swing arm 53 to rotate, and then the swing arm 53 is connected to the fan motor 61 to drive the pulp sheet 63 to swing; step three: after starting the fan motor 61, the pulp sheet 63 rotates, and after the medicine is injected into the medicine box 23, the battery 21 drives the liquid pump 52 to extract the medicine in the medicine box 23. After the medicine is filtered through the filter 22, it is transmitted to the nozzle 62 and then sprayed.

[0040] In actual use, the pneumatic spray device within the facility operates with two sets of drive wheels 4 rolling on guide rails 3, driving frame 1 to move. The distance traveled is recorded by an encoder. Within frame 1, battery 21 powers the entire device. Liquid medicine is injected from the injection port of medicine box 23, filtered by bottom filter 22, and then pumped and pressurized by liquid pump 52 to spray nozzle 62. In control system 5, a swing motor 51 drives swing arm 53 to adjust the position of nozzle 62. A fan motor 61 rotates blades 63, generating airflow that entrains the pesticide droplets sprayed from the nozzle. A distance sensor or formula model programming function built into fan motor 61 monitors the distance to the crop in real time. When the distance is close, the nozzle spray volume and air delivery intensity are reduced; when the distance is far, the air volume and spray volume are increased or decreased simultaneously to achieve uniform spraying. If two spraying assemblies 6 are installed, they can operate simultaneously, swinging in opposite directions but at the same speed, thereby expanding the coverage area.

[0041] In addition, the control system 5 of the device includes a control module and a communication module. The control module regulates the operation of each component, and the communication module supports remote control through a remote control or smart terminal such as a mobile phone to achieve separation of human and medicine.

[0042] The above is the overall workflow of the present invention. Just repeat this step next time you use it.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

[0045] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. Air-assisted spraying device within the facility, characterized by: It comprises a guide rail (3), a driving wheel (4) is provided on the guide rail (3) for rolling, and a frame (1) is rotatably connected below both ends of the driving wheel (4); A driving mechanism (2) is arranged inside the frame (1), comprising a battery (21) arranged inside the frame (1), and a filter assembly is further provided on one side of the battery (21); A spray assembly (6), including a paddle (63), is arranged on one side of the frame (1) and is used to deliver air to the interior of the facility; A control system (5) is also arranged on one side of the driving mechanism (2) for driving the blades (63).

2. The air-assisted spraying device for use in a facility according to claim 1, characterized in that: The filter assembly comprises: A medicine box (23) is arranged inside the frame (1), and a medicine injection hole is fixedly provided above the medicine box (23) for injecting medicine; The filter (22) is fixedly connected to the bottom of the medicine box (23) and is used to filter the medicine.

3. The air-assisted spraying device for use in a facility according to claim 2, characterized in that: The control system (5) comprises: A swing motor (51) is fixedly arranged on one side of the internal battery (21) of the frame (1); A swing arm (53) is fixedly connected to the output end of the swing motor (51) and is used for swinging; The liquid pump (52) is fixedly connected to one side of the battery (21).

4. The air-assisted spraying device for use in a facility according to claim 3, characterized in that: The spraying assembly (6) further includes: a spray head (62) fixedly arranged at one end of the swing arm (53) away from the frame (1) for spraying pesticide; A fan motor (61) is fixedly arranged above the nozzle (62) and is used to blow air to the facility; The paddle (63) is fixedly connected to the output end of the fan motor (61) and is used to blow the sprayed medicine when rotating; The size of the droplets sprayed by the nozzle (62) is less than 100 μm.

5. The air-assisted spraying device for use in a facility according to claim 4, characterized in that: One end of the liquid pump (52) is fixedly connected to the filter (22), and the other end is connected above the nozzle (62) for transmitting the liquid medicine.

6. The air-assisted spraying device for use in a facility according to claim 5, characterized in that: The fan motor (61) can be configured with a distance sensor or a formula model programming function. When the nozzle (62) is close to the crop canopy, the nozzle (62) and the fan motor (61) will automatically reduce the spray volume and the air volume. When the nozzle (62) is far away from the crop canopy, the nozzle (62) and the fan motor (61) will automatically increase the spray volume and the air volume, thereby ensuring uniform spraying of the droplets.

7. The air-assisted spraying device for use in a facility according to claim 1, characterized in that: The driving wheels (4) are provided in two groups, both of which slide above the guide rail (3).

8. The spraying method of the air-conveying spray device in a facility according to any one of claims 1 to 7, characterized in that: Step 1: Start the battery (21) to drive the two sets of driving wheels (4) to move on the guide rail (3), thereby driving the frame (1) to move; Step 2: Start the swing motor (51) inside the frame (1) to drive the swing arm (53) to rotate, and then the swing arm (53) is connected to the fan motor (61) to drive the paddle (63) to swing; Step 3: After the fan motor (61) is started, the pulp sheet (63) rotates, and the medicine is injected into the medicine box (23). The battery (21) drives the liquid pump (52) to extract the medicine in the medicine box (23). After the medicine is filtered through the filter (22), it is transmitted to the nozzle (62) and then sprayed.

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