Pneumatic conveying centrifugal atomization equipment, wind scooper and plant protection vehicle

Abstract

The utility model discloses air-assisted centrifugal atomization equipment, a wind scooper and a plant protection vehicle, and belongs to the technical field of spraying equipment. According to the air-assisted centrifugal atomization equipment, liquid atomization is achieved through the centrifugal atomization device in a centrifugal throwing-out mode, the particle size uniformity of formed fog drops is higher, the atomization effect is better, and the spraying effect can be improved. According to the air supply centrifugal atomization equipment, through cooperation of the centrifugal atomization device, the air supply device and the air guide cover, the spraying width of the equipment can be expanded, the fog field coverage range is expanded, and the spraying efficiency is improved. When the wind scooper is applied to the air-assisted centrifugal atomization equipment, the spraying coverage area can be enlarged. The vehicle body of the plant protection vehicle is provided with the pneumatic conveying centrifugal atomization equipment, liquid medicine can be sprayed to crops beside the vehicle body in the vehicle body running process, the spraying effect is good, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to an air-transported centrifugal atomizing device, an air guide cover and a plant protection vehicle. Background Art

[0002] The main function of atomizing spray equipment is to convert liquids (such as water, pesticides, disinfectants, etc.) into fine droplets and spray them onto a designated target area. In related art, the main technologies for atomizing spray equipment include pressure atomization and ultrasonic atomization. Pressure atomization technology uses a liquid pump to pressurize the liquid, which is then atomized into fine droplets through a nozzle for spraying onto the target area. However, the spraying effect of the spray equipment in related art is poor. Utility Model Content

[0003] The purpose of the embodiments of the present utility model is to provide an air-transported centrifugal atomization device, an air guide cover and a plant protection vehicle, which can improve the liquid spraying effect.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A centrifugal atomization device with air supply, comprising an air guide cover, a centrifugal atomization device, and an air supply device; the air guide cover is provided with a rear opening and a front opening at both ends in the axial direction, and the end of the air guide cover provided with the rear opening is connected to the air supply device; the centrifugal atomization device is used to spray mist droplets toward its periphery, the centrifugal atomization device is located in front of the air supply device, and the air supply device is used to blow air flow toward the front opening of the air guide cover, so as to blow the mist droplets sprayed by the centrifugal atomization device forward;

[0006] The air guide cover includes an air guide shell and at least two air guide blades, the rear opening is provided at the rear end of the air guide shell, and the front opening is provided at the front end of the air guide shell;

[0007] The inner diameter of the air guide shell gradually expands from its rear end to its front end, and at least two of the air guide blades are respectively located on the upper and lower sides of the centrifugal atomization device, and form an expanded air duct with the inner wall of the air guide shell to guide part of the air flow to diffuse in the upper and lower directions.

[0008] Optionally, the air guide cover is configured to: enable the droplets sprayed from the air-flow centrifugal atomization device to diffuse in a vertical direction to a greater extent than in a horizontal direction under the action of airflow.

[0009] Optionally, the angles between the upper and lower inner wall surfaces at the front end of the air guide housing and the horizontal plane are not zero.

[0010] Optionally, the upper and lower dimensions of the front opening are larger than the left and right dimensions of the front opening.

[0011] Optionally, the wind guide cover also includes a first wind guide vane and a second wind guide vane arranged inside the wind guide shell, and the first wind guide vane and the second wind guide vane are arranged in the up and down directions; the first wind guide vane and the second wind guide vane are both configured as: extending from one end close to the rear opening to one end close to the front opening in a direction away from the central axis of the wind guide shell; the side of the first wind guide vane facing away from the second wind guide vane is a first tongue outer side surface, and a first expansion air duct is defined between the first tongue outer side surface and the inner side surface of the wind guide shell; the side of the second wind guide vane facing away from the first wind guide vane is a second tongue outer side surface, and a second expansion air duct is defined between the second tongue outer side surface and the inner side surface of the wind guide shell.

[0012] Optionally, the air guide shell includes a first tongue-shaped plate portion and a second tongue-shaped plate portion; the first tongue-shaped plate portion is located on the side of the first air guide vane away from the second air guide vane, and the first expansion air duct is formed between the first tongue-shaped plate portion and the first air guide vane; the second tongue-shaped plate portion is located on the side of the second air guide vane away from the first air guide vane, and the second expansion air duct is formed between the second tongue-shaped plate portion and the second air guide vanes; the first tongue-shaped plate portion and the second tongue-shaped plate portion are both configured to extend from one end close to the rear opening to one end close to the front opening in a direction away from the central axis of the air guide shell.

[0013] Optionally, the left side of the first air guide plate and the left side of the second air guide plate are spaced apart from each other, and a first blowing air duct is formed between the inner side surface of the air guide housing, the left side of the first air guide plate, and the left side of the second air guide plate;

[0014] The right side of the first air guide plate and the right side of the second air guide plate are spaced apart from each other, and a second blowing air duct is formed between the inner side surface of the air guide shell, the right side of the first air guide plate, and the left side of the second air guide plate.

[0015] Optionally, the front opening includes an upper edge and a lower edge located on the upper and lower sides of the air guide cover, and also includes a left edge and a right edge located on the left and right sides of the air guide cover; the left edge and the right edge are arc-shaped edges, and / or the upper edge and the lower edge are straight lines.

[0016] Optionally, it further includes a seat, which is arranged inside the air guide shell; the first air guide plate and the second air guide plate are connected to the seat; and / or the air guide shell is connected to the seat.

[0017] Optionally, the centrifugal atomization device is arranged on a side of the seat away from the air supply device, and the centrifugal atomization device is connected to the seat.

[0018] Optionally, the ends of the first air guide blade and the second air guide blade close to the rear opening are connected to the seat; and / or, the surfaces of the first air guide blade and the second air guide blade close to the side of the central axis of the air guide cover are respectively connected to the seat through a first connection part; and / or, the surfaces of the first air guide blade and the second air guide blade facing away from the side of the central axis of the air guide cover are respectively connected to the air guide shell through a second connection part; and / or, the left and right sides of the first air guide blade and the left and right sides of the second air guide blade are respectively connected to the air guide shell through a third connection part.

[0019] Optionally, the centrifugal atomization device includes a device body and a centrifugal atomization disk, and the device body is connected to the air guide cover or the air supply device;

[0020] The device body includes a driving device and a flow guiding device connected to each other. The flow guiding device is used to transport liquid to the centrifugal atomizing disk. The driving device is connected to the centrifugal atomizing disk and is used to drive the centrifugal atomizing disk to rotate.

[0021] Optionally, the centrifugal atomizing disk is located outside the air guide cover, and the centrifugal atomizing disk is located on a side of the air guide cover away from the air supply device.

[0022] An air guide cover suitable for use with the air-conveyed centrifugal atomizing spraying equipment described above;

[0023] The air guide cover includes an air guide housing, a first air guide blade, and a second air guide blade; the air guide housing is provided with a rear opening and a front opening at both ends in the axial direction, and the first air guide blade and the second air guide blade are provided inside the air guide housing and arranged in the vertical direction;

[0024] A first expanding air duct is defined between the first air guide plate and the air guide shell, and a second expanding air duct is defined between the second air guide plate and the air guide shell; the first expanding air duct and the second expanding air duct are both configured as follows: one end is connected to the rear opening, the other end is connected to the front opening, and extends from an end close to the rear opening to an end close to the front opening in a direction away from the central axis of the air guide shell.

[0025] A plant protection vehicle comprises a vehicle body and the above-mentioned air-conveying centrifugal atomization device, wherein the air-conveying centrifugal atomization device is installed on the vehicle body.

[0026] The beneficial effects of the utility model are as follows: the air-conveyed centrifugal atomization equipment realizes the atomization of the liquid by centrifugal throwing through the centrifugal atomization device, the particle size uniformity of the formed droplets is higher, the atomization effect is better, and it is beneficial to improve the spraying effect.

[0027] The air-flow centrifugal atomizing device, through the cooperation of the centrifugal atomizing device, the air-flow device and the air guide cover, is conducive to expanding the spray width of the device, expanding the coverage of the fog field and improving the spraying efficiency.

[0028] When the air guide cover is used in air-conveyed centrifugal atomizing equipment, it is beneficial to expand the spraying coverage area.

[0029] The plant protection vehicle is equipped with air-blown centrifugal atomizing equipment, which can spray liquid medicine on the crops beside the vehicle while the vehicle is moving, with good spraying effect and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 This is a schematic diagram of the overall structure of the air-transported centrifugal atomization device according to an embodiment of the present utility model;

[0032] Figure 2 The spray of the air-transported centrifugal atomizing device described in the embodiment of the utility model

[0033] Figure 3 This is a schematic diagram of the air-transported centrifugal atomization device according to an embodiment of the present utility model with the air guide cover hidden;

[0034] Figure 4 This is a three-dimensional view of the air guide cover according to an embodiment of the present invention (seen from the front);

[0035] Figure 5 This is a three-dimensional view of the air guide cover according to an embodiment of the present invention (seen from the rear);

[0036] Figure 6 This is a front view of the air guide cover according to an embodiment of the present utility model;

[0037] Figure 7 This is a schematic diagram of the effect of the air guide cover on the expansion of the fog field in the air-transported centrifugal atomization equipment according to an embodiment of the utility model;

[0038] Figure 8 This is a schematic diagram of the air guide cover according to an embodiment of the present utility model after being cut open at a first position;

[0039] Figure 9 This is a cross-sectional view of the air guide cover at the first position according to an embodiment of the present utility model;

[0040] Figure 10 This is a schematic diagram of the air guide cover according to an embodiment of the present utility model after being cut open at a second position;

[0041] Figure 11 This is a cross-sectional view of the air guide cover at the second position according to an embodiment of the present utility model;

[0042] Figure 12 This is a schematic diagram of the three-dimensional structure of the driving device according to an embodiment of the present utility model;

[0043] Figure 13 This is a schematic structural diagram of the centrifugal atomization device according to an embodiment of the present utility model;

[0044] Figure 14 This is one of the application scenario diagrams of the plant protection vehicle described in an embodiment of the present utility model;

[0045] Figure 15 This is the second application scenario diagram of the plant protection vehicle according to the embodiment of the present utility model;

[0046] Figure 16 The figure illustrates the droplet reabsorption phenomenon that occurs during the development of air-assisted centrifugal atomization equipment.

[0047] Figure 17 This is a schematic structural diagram of an air guide hood with air gathering plates according to an embodiment of the present invention.

[0048] In the figure: 10, centrifugal atomizing disk; 101, atomizing flow channel; 20, flow guide device; 30, driving device; 40, outer cover; 41, mounting ring; 42, baffle; 50, air guide cover; 51, air guide housing; 5101, rear opening; 5102, front opening; 5103, upper edge; 5104, lower edge; 5105, upper edge; 5106, left edge; 5107, right edge; 511, first tongue-shaped plate portion; 512, second tongue-shaped plate portion; 52, air guide plate; 521, first air guide plate; 522, second Air guide plate; 53, air gathering plate; 531, first air gathering plate; 532, second air gathering plate; 501, first expanding air duct; 502, second expanding air duct; 503, first blowing air duct; 504, second blowing air duct; 5031, third air duct; 5032, fifth air duct; 5041, fourth air duct; 5042, sixth air duct; 54, seat; 551, first connecting part; 552, second connecting part; 60, air supply device; 61, rear shell; 80, mounting seat; 100, air-supply centrifugal atomizing equipment; 200, plant protection vehicle. DETAILED DESCRIPTION

[0049] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0050] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected" and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0052] Spraying equipment is widely used, for example, in agriculture and forestry, where liquids such as pesticides and growth media are applied to target areas. However, conventional spraying solutions often suffer from poor spraying effectiveness in practice, particularly due to the concentrated spray width and relatively small coverage area of ​​a single sprayer.

[0053] For example, for crop areas such as cotton fields, corn fields, and dragon fruit fields, effective spraying of pesticides has become a key link in ensuring the healthy growth of crops and preventing and controlling pests and diseases. The spraying schemes in the related art have the following problems: First, when spraying from top to bottom, it is difficult for the liquid medicine to penetrate into the middle and lower layers of the crop, and the amount of medicine received by the leaves in the middle and lower layers of the crop is relatively small. Second, a pressure atomizing nozzle is used to spray from the side of the crop, but the size and distribution of the droplets sprayed by the pressure atomizing nozzle are often not uniform enough, and there may be large droplets and very small droplets. The larger droplets may not be able to effectively adhere to the target surface. Third, the spray width of the pressure atomizing nozzle is relatively concentrated, and it can only cover a limited area around the nozzle, resulting in low spraying efficiency. In order to meet the requirements of large-area spraying, the number of nozzles can only be increased, and the structure is complicated. Another problem caused by the concentrated spray width is that excessive pesticide spraying may occur in some areas.

[0054] Reference Figures 1 to 17Based on this, the present application provides an air-transported centrifugal atomizing device 100, the front end of which radially sprays atomized droplets through a centrifugal atomizing device, and an air supply device 60 supplies air at the rear of the centrifugal atomizing device to blow the atomized sprayed droplets toward the target area. The air-transported centrifugal atomizing device 100 can expand the coverage of the fog field, and the spraying operation is efficient and effective. The air-transported centrifugal atomizing device 100 can be installed on movable plant protection equipment, such as unmanned vehicles, unmanned plant protection aircraft, etc., and can also be fixed in the environment for use. Of course, handheld use is not excluded.

[0055] The air-assisted centrifugal atomization device 100 has the following effects: First, the droplets are sprayed outward by centrifugal atomization, and the droplet uniformity is higher, and the droplet particle size can be controlled by the rotation speed of the centrifugal atomization disk 10. Compared with the pressure atomization method, the centrifugal atomization method is used for spraying, and the atomization effect is better, which is suitable for application in the field of agricultural and forestry plant protection pesticide spraying. Second, the centrifugal atomization device is combined with the air supply device 60, which is suitable for use on the plant protection vehicle 200, so that after the centrifugal atomization device sprays droplets to the periphery, the droplets are sprayed to the crop area on the side of the plant protection vehicle 200 through the air supply device 60. Third, in conjunction with the air guide hood 50, the spray width can be effectively controlled to improve the prevention and control effect of pesticide spraying.

[0056] The present application also provides an air guide hood 50. When used with an air-delivered centrifugal atomizer 100, the air guide hood 50 helps expand the vertical spray width of the device and improve the spraying effect. When spraying liquid medicine on farmland crops, a larger vertical spray width can cover a wider range of crops, allowing the upper, middle, and lower layers of the crops to better receive the liquid medicine, resulting in a better control effect.

[0057] The present application also provides a crop protection vehicle 200 equipped with the aforementioned air-assisted centrifugal atomization device 100. The crop protection vehicle 200 can be, but is not limited to, an unmanned vehicle or a manned vehicle. The crop protection vehicle 200 can be driven through farmland, orchards, vegetable gardens, and other plots of land, spraying pesticides from the side onto crop plants. It offers excellent spraying effects and high efficiency, making it suitable for operations on large farmland areas.

[0058] It should be noted that, in the accompanying drawings of the present application, for the convenience of describing the relative positions between the various components inside the centrifugal atomizing device and the air-supplied centrifugal atomizing device 100, the y direction and the x direction are marked in the drawings. Taking the central axis of the centrifugal atomizing disk 10, the centrifugal atomizing device, the air-supplied centrifugal atomizing device 100, the outer cover 40, and the air supply device 60 as an example, L1 indicates the central axis. The left and right directions of the air-supplied centrifugal atomizing device 100 are indicated by the x-axis, the up and down directions are indicated by the z-axis, and the front and back directions are indicated by the y-axis. When the air-supplied centrifugal atomizing device 100 is used, the air-supplied centrifugal atomizing device 100 is generally assembled so that the x-axis direction is roughly parallel to the ground.

[0059] Reference Figures 1 to 16 The air-supplied centrifugal atomization device 100 is described below. The air-supplied centrifugal atomization device 100 includes a centrifugal atomization device, an air guide cover 50 and an air supply device 60.

[0060] The centrifugal atomization device includes a centrifugal atomization disk 10 having a rotation axis. The centrifugal atomization disk 10 is provided with a plurality of atomization flow channels 101 distributed around its rotation axis. The centrifugal atomization disk 10 can rotate around its rotation axis to atomize the liquid and centrifugally throw it out.

[0061] The centrifugal atomization device is located downstream of the air flow blown by the air supply device 60. The central axis of the air guide 50 is parallel to or colinear with the rotation axis of the centrifugal atomization disk 10. The air guide 50 has a rear opening 5101 and a front opening 5102 at both ends of the axial direction. The end of the air guide 50 with the rear opening 5101 is connected to the air supply device 60 so that the air flow blown by the air supply device 60 can flow into the front opening 5102 of the air guide 50.

[0062] When the air-assisted atomizing device is in operation, the centrifugal atomizing device sprays droplets outwardly along its radial direction, and the air supply device 60 blows airflow, which enters the air guide hood 50 and flows forward under the guidance of the air guide hood 50. The droplets diffused from the centrifugal atomizing device to its periphery can be blown forward under the action of the wind field. Among them, the centrifugal atomizing device centrifugally sprays droplets around it, initially providing a certain area of ​​the fog field range. Under the action of the airflow blown by the air supply device 60, the droplets can be blown to the target area on the front side of the device, so that the spray of the air-assisted centrifugal atomizing device 100 can cover a larger target area and obtain a larger spray width.

[0063] The air guide cover 50 includes an air guide shell 51 and at least two air guide blades, the rear opening 5101 is set at the rear end of the air guide shell 51, and the front opening 5102 is set at the front end of the air guide shell 51; the inner diameter of the air guide shell 51 gradually expands from its rear end to its front end, and the at least two air guide blades are respectively located on the upper and lower sides of the centrifugal atomization device, and form an expanded air duct with the inner wall of the air guide shell 51 to guide part of the airflow to diffuse in the upper and lower directions.

[0064] The air guide hood 50 includes an air guide housing 51 and at least two air guide blades 52. A rear opening 5101 is provided at the rear end of the air guide housing 51, and a front opening 5102 is provided at the front end of the air guide housing 51. The interior space of the air guide housing 51 is used to allow air to pass through. The air guide housing 51 expands from its rear end to its front end, and the area of ​​the front opening 5102 is smaller than that of the rear opening 5101. The interior space of the air guide housing 51 is slightly smaller on the side closest to the air supply device 60 to facilitate concentrated air intake. The interior space of the air guide housing 51 on the side facing away from the air supply device 60 gradually increases to facilitate the gradual outward diffusion of air.

[0065] This embodiment uses an air guide housing 51 that expands from the back to the front. The air guide housing 51 is used to allow the airflow to blow from the rear opening 5101 to the front opening 5102. Part or all of the airflow can be diffused outward under the guidance of the inner wall of the air guide housing 51. This not only increases the air outlet area and the spraying range of the air-delivered centrifugal atomizing device 100, but also helps to improve the control of the wind field over the droplets.

[0066] In the area where the air guide housing 51 is expanded outward, the edge of the wind field is farther away from the central axis of the device, and the centrifugal droplets are reduced to a certain extent in the process of moving away from the center. The slower the centrifugal speed of the droplets, the easier it is to be controlled by the wind field, and the airflow at the edge of the wind field is more likely to blow the droplets thrown out by centrifugal atomization forward. In this way, the requirements for the driving power of the air supply device are reduced, and the air supply device 60 does not need to increase the operating power, reduce the operating noise, and improve the user experience. If a nozzle that sprays from back to front using a pressure spraying method is used, the droplets sprayed by the pressure nozzle move more forward and only move radially in a small range. In this way, the pressure nozzle spraying forward in combination with the air guide housing 51 that expands outward from back to front cannot achieve the fog field expansion effect that can be achieved by the centrifugal atomization device of the present application and the air guide housing 51 that expands outward from back to front. If multiple pressure nozzles are used, spaced around the central axis and spraying radially outward to match the air guide housing 51 that expands from back to front, the structure is complex, the liquid supply method for the pressure nozzles is also complex, and it is prone to failure. It also cannot achieve the fog field expansion effect achieved by the centrifugal atomization device of the present application and the air guide housing 51 that expands from back to front. In addition, the use of nozzles also has the problem of uneven droplet size.

[0067] In order to solve the problems of poor atomization effect and poor spraying effect existing in the current pressure atomizer disk spraying, the utility model author has considered using a centrifugal atomizer for spraying. The droplet particle size obtained by the atomization of the centrifugal atomizer is more uniform, which can better reach the target droplet particle size, avoid some droplets with large particle size being unable to stay on the blade surface, and avoid some droplets with small particle size drifting and unable to reach the target area, so as to achieve better atomization effect and good spraying effect.

[0068] Although spraying with a centrifugal atomizer can achieve good atomization effects, conventional centrifugal atomizers generally have the plane of rotation of the centrifugal atomizer disc 10 parallel to the ground, that is, the axis of rotation of the centrifugal atomizer disc 10 is perpendicular to the ground. This means that at least a portion of the droplets centrifugally ejected by the centrifugal atomizer disc 10 reaches the crops. If the centrifugal atomizer is mounted directly above the body of the crop protection vehicle 200, the droplets easily land on the vehicle, failing to effectively reach the crop areas adjacent to the vehicle. To address this issue, increasing the rotation speed of the centrifugal atomizer disc 10, for example, to increase the radius of the centrifugal ejection field and the speed of the droplets centrifugally ejected, in the hope of allowing the droplets to penetrate deeper into the crops, still presents challenges. First, this places high demands on the motor driving the centrifugal atomizer disc 10. Second, the droplets ejected to the left and right have a high velocity, allowing them to reach the crop areas to the left and right of the crop protection vehicle 200. However, the droplets ejected forward and backward remain unused, resulting in waste and potentially landing on the vehicle, causing contamination. Third, the droplets can only cover a certain height range of the crop, failing to meet spraying requirements. Another consideration was to extend cantilevers from the left and right sides of the vehicle, extending above the crops and equipped with centrifugal atomizers. However, this approach would only allow the sprayed liquid to remain on the top layer of the crops. Furthermore, if the centrifugal atomizer were positioned perpendicular to the ground, the droplets ejected by the centrifugal atomizer disk 10 would centrifugally fly out roughly within a vertical plane, thus failing to reach the crops on either side of the vehicle.

[0069] The air-transported centrifugal atomization device 100 of the present application is provided with an air supply device 60 at the rear side of the centrifugal atomization device. When the air-transported centrifugal atomization device 100 is mounted on a plant protection vehicle 200 for application, the rotation plane of the centrifugal atomization disk 10 of the centrifugal atomization device is approximately parallel to the vertical plane, that is, the rotation axis of the centrifugal atomization disk 10 is approximately parallel to the ground (for example, the angle between the rotation axis of the centrifugal atomization disk 10 and the horizontal plane is within 35 degrees). The movement path of the droplets in the air-transported centrifugal atomization device 100 is approximately as follows: Figure 2 Indicate, Figure 2 The bold dotted lines in the figure are only used to provide a partial schematic diagram of the droplet path and cannot be used as the sole limitation of this application. The centrifugal atomization device is arranged on the front side of the air supply device 60. The centrifugal atomization device is used to atomize the liquid to be sprayed through the centrifugal atomization disk 10, and is used to spray the atomized liquid roughly along the radial direction of the air-supply centrifugal atomization device 100 through the centrifugal atomization disk 10. The air supply device 60 is located at the axial rear of the centrifugal atomization disk 10 to supply air. Through the action of wind, the movement path of the centrifugally thrown droplets is changed, and the droplets are blown to the target area. In this way, the problem of poor atomization effect of the pressure atomization spraying equipment is improved, and the problem of droplet waste and the inability of droplets to cover crops well when the centrifugal atomization device is mounted on the body of the plant protection vehicle 200 is solved.

[0070] The setting of the wind guide hood 50 aggregates and guides the wind blown by the air supply device 60, which can improve the efficiency of airflow utilization and the accuracy of spray coverage. The shape of the rear opening 5101 of the wind guide hood 50 and the shape of the internal air duct can also be designed to control the amplitude and range of the fog field sprayed by the equipment, so as to achieve the effect of expanding the spray coverage area.

[0071] For example, the air guide hood 50 can be configured to make the vertical dimensions of the target area covered by the fog field sprayed by the air-transported centrifugal atomizing device 100 larger than the horizontal dimensions. Therefore, when the air-transported centrifugal atomizing device 100 is mounted on the plant protection vehicle 200, the fog field sprayed by the air-transported centrifugal atomizing device 100 can cover higher plant heights, and the fog droplets can cover the upper, middle and lower layers of the crop canopy as much as possible, thereby achieving a good spray protection effect. Figure 7 It should be noted that the edges of the fogged area shown in the figure are only for example.

[0072] The air-assisted centrifugal atomization device 100 can be used to spray pesticides using a centrifugal atomizer disk 10 in conjunction with an air supply device 60. Compared to conventional pressure atomization spraying, the following features are achieved: First, the liquid can be dispersed into smaller droplets, and the droplet size can be controlled to be more uniform, preventing droplets from being too large or too small. Second, a wider spray coverage area can be achieved, allowing the liquid to more evenly cover the target area, resulting in a better spraying effect. Third, it is highly controllable. By adjusting parameters such as the rotational speed and liquid intake, the droplet size and spray volume can be controlled to meet different operational requirements and achieve precise atomization control. Pesticide spraying can be precisely adjusted according to different crop types, growth stages, and pest and disease conditions. Fourth, compared to pressure nozzles, the flow channel within the centrifugal atomizer disk 10 is less prone to clogging. Fifth, the droplets, blown by wind, can penetrate deeper into the crop canopy, covering more leaves and fruit surfaces, thereby improving pesticide utilization and pest control effectiveness. Sixth, it can expand the coverage area of ​​the pesticide solution and improve spraying efficiency. Centrifugal atomization spraying combined with air supply device 60 can deliver droplets directly to the target area, reducing airborne dispersion and waste of the pesticide solution and improving spraying efficiency. Seventh, it is not only suitable for pesticide spraying on large farmland, but also for the precise management of small-scale crops such as orchards and vegetable gardens. It has the advantages of adjustable spray volume and droplet size, and excellent atomization spraying effect, improving operational efficiency and reducing labor costs.

[0073] The air-conveyed centrifugal atomization device 100 of the present application can be used to spray pesticides on crops.

[0074] Please refer to Figure 11 The plant protection vehicle 200 of the present application includes a vehicle body and an air-transported centrifugal atomization device 100 , and the air-transported centrifugal atomization device 100 is directly or indirectly installed on the vehicle body.

[0075] For example, when it is necessary to spray pesticides on agricultural and forestry crops such as cotton, corn, and dragon fruit plants, the plant protection vehicle 200 travels between two adjacent rows of crops, the centrifugal atomizer works to throw and spray atomized droplets around the centrifugal atomizer disk 10, and the air supply device 60 blows the atomized droplets to the left and / or right crop plants. Figure 11 As shown in the figure, the plant protection vehicle 200 is an unmanned vehicle. Two air-supplied centrifugal atomizing devices 100 are set on the left and right sides of the vehicle body. The left air-supplied centrifugal atomizing device 100 is used to spray liquid medicine on the crop plants on the left side of the vehicle body, and the right air-supplied centrifugal atomizing device 100 is used to spray liquid medicine on the crop plants on the right side of the vehicle body. The direction of the air-supplied centrifugal atomizing device 100 can be adjusted upward and / or downward, or toward the front and / or rear of the vehicle.

[0076] When the plant protection vehicle 200 is used in the field of agricultural and forestry plant protection, it can be driven in farmlands, orchards, vegetable gardens and other plots. As shown in the figure, the pesticide can be sprayed from the side to the crop plants, and the spraying effect is good. The air-supplied centrifugal atomization equipment 100 of the plant protection vehicle 200 adopts a design of blowing with a centrifugal atomization device in conjunction with an air supply device 60. The droplets have a certain degree of penetration, and the droplets can reach the target plant crops more accurately. The droplet size is small and evenly distributed. The droplets can enter the interior of the crop plants through the gaps between the leaves with the air flow, which is conducive to the droplets covering the crop leaves, fruits, etc. more completely. It can improve the problem of uneven reception of the liquid medicine between the outer and inner areas of the crop (for example, the outer end of the leaf can receive the liquid medicine, but the root may not receive the liquid medicine), and can improve the problem of uneven reception of the liquid medicine between the top and bottom of the crop, thereby improving the prevention and control effect.

[0077] The plant protection vehicle 200 of the present application is suitable for spraying pesticides on various types of crops. For example, for medium-height crops (cotton, soybeans, cucumbers on racks, eggplants on racks, corn, lemons, wheat, etc.), the centrifugal atomizer device combined with an appropriate air supply device 60 can effectively blow pesticide droplets onto the leaves and stems of the crops, thereby improving the spraying effect. For short-slung crops (peanuts, sweet potatoes, etc.), the plant height of these crops is relatively low. By adjusting the angle of the air-supply centrifugal atomizer device 100, it is easy to cover all parts of the plant, ensuring uniform spraying of pesticides.

[0078] In one embodiment, the air-driven centrifugal atomization device 100 is configured such that the sprayed droplets diffuse in a vertical direction with a greater amplitude than in a horizontal direction. Optionally, by designing the rear opening 5101 of the air-driven hood 50 or designing the air duct inside the air-driven hood 50, the air-driven hood 50 is configured to guide the movement path and distribution range of the droplets, so that the droplets sprayed toward the periphery by the centrifugal atomization device are ejected toward the front side of the air-driven centrifugal atomization device 100 under the action of the wind field, and the droplets in the mist field sprayed by the air-driven centrifugal atomization device 100 exhibit a greater amplitude in the vertical direction than in the horizontal direction.

[0079] It should be noted that when describing the direction of the air-driven centrifugal atomization device 100 or the interior of the device, the rotation axis of the centrifugal atomization disk 10 is taken as the central axis of the device, the central axis of the device extends along its own front-to-back direction, and the droplets are blown roughly toward the front of the device. When the air-driven centrifugal atomization device 100 is mounted on the body of the plant protection vehicle 200, when the rear opening 5101 of the air guide cover 50 faces the left side of the plant protection vehicle 200, the air-driven centrifugal atomization device 100 is used to spray droplets toward the front side of the device and the left side of the plant protection vehicle 200; similarly, when the rear opening 5101 of the air guide cover 50 faces the upper left side of the plant protection vehicle 200, the air-driven centrifugal atomization device 100 is used to spray droplets toward the front side of the device and the upper left side of the plant protection vehicle 200.

[0080] By expanding the upper and lower spray widths of the air-sent centrifugal atomizing device 100, the air-sent centrifugal atomizing device 100 can be mounted on the body of the plant protection vehicle 200. Figure 11 as well as Figure 12 When the plant protection vehicle 200 is performing a spraying operation, it moves forward on the plot between two rows of crops and can adjust its driving speed according to the crop density. The upper and lower spraying range of the air-driven centrifugal atomizer 100 is expanded, and the air-driven centrifugal atomizer 100 can cover a greater height of the crop. For many crops, the mist field sprayed by the air-driven centrifugal atomizer 100 of the present application can simultaneously cover the upper, middle and lower parts of the crop. In this case, during the driving process of the plant protection vehicle 200, the angle of the air-driven centrifugal atomizer 100 does not need to be adjusted, that is, the spraying requirements are met.

[0081] The reliable coordination of the air-assisted centrifugal atomizer 100, which boasts an expanded vertical spraying range, and the plant protection vehicle 200 significantly improves spraying efficiency. Alternatively, air-assisted centrifugal atomizers 100 can be installed on both the left and right sides of the plant protection vehicle 200. For some crops, a single, one-way trip of the plant protection vehicle 200 within the plot between the first and second rows of crops is sufficient to meet spraying requirements.

[0082] In some other embodiments, the angle of the air-assisted centrifugal atomization device 100 on the vehicle body can be adjusted according to the height of the crop plants, and the spraying angle can be adjusted to accurately spray the target area.

[0083] In order to make the spraying range of the air-conveying centrifugal atomizing device 100 more scientific and to make the crops receive the liquid better when the plant protection vehicle 200 performs liquid spraying operations in the fields, the structure of the air guide cover 50 is described below.

[0084] Optionally, the shape of the rear opening 5101 is circular to well match the air outlet structure of the air supply device 60.

[0085] Optionally, the shape of the front opening 5102 is different from that of the rear opening 5101, so that different shapes of front openings 5102 can be selected according to fog field control requirements. The shape of the front opening 5102 affects the air outlet area.

[0086] Optionally, the front opening 5102 is circular, and the rear opening 5101 is symmetrical about its center line. The center line of the front opening 5102 and the center line of the rear opening 5101 are collinear, which is beneficial to improving airflow utilization efficiency.

[0087] In one embodiment, the air guide 50 is configured to expand the vertical spraying range of the air-driven centrifugal atomizing device 100. Thus, when the air-driven centrifugal atomizing device 100 blows mist droplets directly toward the target area, the vertical dimension of the target area receiving the mist droplets is larger than the horizontal dimension.

[0088] Optionally, refer to Figure 5 The vertical dimension of the front opening 5102 is d1, and the horizontal dimension of the front opening 5102 is d2, with d1 being greater than d2. By expanding the interior space of the air guide housing 51 from back to front, and configuring the front opening 5102 of the air guide housing 51 to expand vertically, the airflow can be directed to diffuse more upward and downward, thereby expanding the vertical range of the mist field sprayed forward by the device.

[0089] In this embodiment, when the upper and lower dimensions d1 of the front opening 5102 are enlarged, d2 is smaller than d1, that is, the left and right dimensions d2 do not need to be enlarged too much, which is conducive to gathering wind, allowing the airflow to flow upward and downward to expand the droplet coverage height range, while avoiding the left and right dimensions of the front opening 5102 being too large to reduce the overall wind speed, so that the airflow blown out from the front opening 5102 of the air guide shell 51 is guaranteed to have a certain flow rate, and the droplets are blown deep into the crops to disturb them.

[0090] Optionally, the upper and lower dimensions of the front opening 5102 are d1, and the left and right dimensions of the front opening 5102 are d2; 0.≤d2 / d1≤0.85.

[0091] In one embodiment, the angle between the upper and lower inner wall surfaces at the front end of the air guide housing 51 and the horizontal plane is not zero. Referring to Figure xx, the portion of the inner wall surface of the upper plate portion of the air guide cover 50 in the figure that is close to the front end area will not extend forward in a horizontal manner like the dotted line at the top end, but will continue to extend in a direction inclined relative to the horizontal plane to increase the expansion effect of the upward blowing mist airflow. Similarly, the portion of the inner wall surface of the lower plate portion of the air guide cover 50 in the figure that is close to the front end area will extend forward in a direction inclined relative to the horizontal plane to increase the expansion effect of the downward blowing mist airflow. Figure 4 The inner wall surface of plate 511 in an area close to the front end continues to extend upward and forward at an angle greater than 0 degrees, and the inner wall surface of plate 512 in an area close to the front end continues to extend downward and forward at an angle greater than 0 degrees.

[0092] In one embodiment, to achieve a good vertical expansion effect for the mist droplets, the air guide vane 52 includes at least one sequin, comprising a first air guide vane 521 and a second air guide vane 522. The first air guide vane 521 and the second air guide vane 522 are at least partially disposed within the interior of the air guide housing 51, with the first air guide vane 521 positioned above the second air guide vane 522. Both the first air guide vane 521 and the second air guide vane 522 are configured to extend from an end proximal to the rear opening 5101 to an end proximal to the front opening 5102, in a direction away from the central axis of the air guide housing 51. The side of the first air guide vane 521 facing away from the second air guide vane 522 is a first tongue-shaped outer surface, which defines a first expansion duct 501 with the inner surface of the air guide housing 51. The side of the second air guide vane 522 facing away from the first air guide vane 521 is a second tongue-shaped outer surface, which defines a second expansion duct 502 with the inner surface of the air guide housing 51.

[0093] The first and second expanded air ducts 501 and 502 have air inlets at their rear ends, which are connected to the rear opening 5101. The first and second expanded air ducts 501 and 502 have air outlets at their rear ends, which are connected to the front opening 5102. Figures 8 to 11 The first expanding air duct 501 extends upward from back to front, and the second expanding air duct 502 extends downward from back to front. The airflow blown by the air supply device 60 is blown forward in the axial direction, passes through the rear opening 5101 and enters the interior of the air guide housing 51. Part of the airflow enters the first expanding air duct 501 and is guided upward by the outer surface of the first tongue. The other part of the airflow enters the second expanding air duct 502 and is guided downward by the outer surface of the first tongue. When the droplets centrifugally thrown out by the centrifugal atomization device reach the front area of ​​the air outlet of the first expanding air duct 501 and the air outlet of the second expanding air duct 502, they can diffuse upward and downward under the action of the airflow in the expanding air duct, thereby increasing the upper and lower dimensions of the fog field coverage area.

[0094] It should be noted that the front opening 5102 of the air guide housing 51 can be in various shapes such as shuttle-shaped and circular. Under the arrangement of the first expansion air duct 501 and the second expansion air duct 502, they can play a certain role in expanding the spray range upward and downward.

[0095] In one embodiment, the air guide housing 51 includes a first tongue-shaped plate portion 511 and a second tongue-shaped plate portion 512, wherein the tongue-shaped plate portion refers to a curved plate portion. The first tongue-shaped plate portion 511 is located on the side of the first air guide vane 521 facing away from the second air guide vane 522, and the first widening air duct 501 is formed between the first tongue-shaped plate portion 511 and the first air guide vane 521. The second tongue-shaped plate portion 512 is located on the side of the second air guide vane 522 facing away from the first air guide vane 521, and the second widening air duct 502 is formed between the second tongue-shaped plate portion 512 and the second air guide vane 522. The first tongue-shaped plate portion 511 and the second tongue-shaped plate portion 512 are both configured to extend from one end close to the rear opening 5101 to one end close to the front opening 5102 in a direction away from the central axis of the air guide housing 51. A first tongue-shaped plate portion 511 and a second tongue-shaped plate portion 512 with a certain width are respectively provided at the upper and lower ends of the air guide shell 51, so that when the airflow contacts the inner surface of the air guide shell 51, it can be gradually guided forward and outward by the curved tongue-shaped plate portion, thereby reducing the airflow velocity loss.

[0096] In one embodiment, referring to Figures 8 to 11 , the first air guide blade 521 and the second air guide blade 522 are both arc-shaped plates that bend outward. The first air guide blade 521 and the second air guide blade 522 are distributed in an "eight" shape from back to front to obtain a better upward expansion effect. When the airflow flows along the outer side surface of the first tongue, it is accelerated, and the airflow obtains a larger upward spraying speed at the front edge of the first air guide blade 521. Similarly, when the airflow flows along the outer side surface of the second tongue, it is accelerated, and the airflow obtains a larger downward spraying speed at the front edge of the second air guide blade 522. In this way, when the airflow blows out of the air outlet of the first expansion air duct 501 and the second expansion air duct 502, a larger wind speed can be obtained, and the mist droplets on the front side of the edge of the air guide shell 51 can be blown forward, so as to prevent some mist droplets from not being controlled by the wind field due to excessive centrifugal speed and flying out of the air guide shell 51, resulting in the mist droplets being unable to be captured, thereby avoiding the instability of the fog field.

[0097] The inventor discovered that when the first air guide vane 521 and the second air guide vane 522 are both curved plates that bend outward, although the airflow obtains a higher wind speed when it is separated from the first air guide vane 521 and the second air guide vane 522, if the curvature of the first air guide vane 521 and the second air guide vane 522 is increased, the tendency of the airflow to diffuse upward and downward is too great, and the droplets cannot be blown forward to the target area (such as corn) that is a certain distance away from the centrifugal atomization disk 10. In some cases, if the centrifugal atomization disk 10 rotates too fast, the centrifugal speed of the droplets is too fast, or when the crop requires a deeper spraying depth and higher wind force requirements, the air guide vane 52 with a larger curvature may cause the droplets to be sent forward insufficiently. For example, in some cases, the airflow may not be able to stably control the fog field. In order to make the air-transported centrifugal atomization device 100 more adaptable, the inventor configured the air guide cover 50 as follows:

[0098] Reference Figure 11 The front end of the first air guide piece 521 and the front end of the second air guide piece 522 are a certain distance away from the front opening 5102 of the air guide housing 51, and the first air guide piece 521 and the second air guide piece 522 are made slightly shorter than the air guide housing 51. Figure 11 As shown, as long as the shell portion of the air guide housing 51 above the first expanding air duct 501 and the shell portion of the air guide housing 51 below the second expanding air duct 502 are relatively flat near the front opening 5102, the airflow can be blown forward. This satisfies the wind field requirements, allowing the mist droplets to expand upward and downward while also achieving a greater forward blowing tendency, which is conducive to stabilizing the mist field and delivering the mist droplets to a farther target location.

[0099] Please continue to refer to Figure 11 In order to take into account the various performances of the first and second expanded air ducts 501, 502, the wind speed, the expansion of the vertical blowing range of the droplets, and the forward blowing of the droplets, based on the above structure of this embodiment, the first tongue-shaped plate portion 511 and the second tongue-shaped plate portion 512 have curved plates, and both tongue-shaped plate portions have two bends. The first tongue-shaped plate portion 511 and the second tongue-shaped plate portion 512 are configured as follows: the rear portion is curved with the arc center facing the outside of the air guide housing 51, and the front portion is curved with the arc center facing the inside of the air guide housing 51. Figure 11 As shown in the figure, a part of the airflow obtains a higher flow rate under the guidance of the first air guide vane 521 and the second air guide vane 522, and a part of the airflow is blown outward and forward under the guidance of the first tongue-shaped plate portion 511 and the second tongue-shaped plate portion 512. The two airflows converge at the opening 5102 on the front side of the air guide shell 51, which can not only blow the droplets forward, but also blow the droplets upward and downward in an expanded manner, so as to obtain a better and more stable spraying fog field, which is suitable for spraying liquid from the plant protection vehicle 200 to the crops on its side, and has a good spraying effect.

[0100] In other embodiments, the first air guide blade 521 and the second air guide blade 522 may also be inclined flat plates or other shapes, and the first shell portion and the second shell portion of the air guide housing 51 may also be inclined flat plates or other shapes.

[0101] In one embodiment, the left side of the first air guide 521 and the left side of the second air guide 522 are spaced apart from each other, and a first blowing duct 503 is formed between the inner side surface of the air guide housing 51, the left side of the first air guide 521, and the left side of the second air guide 522. The right side of the first air guide 521 and the right side of the second air guide 522 are spaced apart from each other, and a second blowing duct 504 is formed between the inner side surface of the air guide housing 51, the right side of the first air guide 521, and the left side of the second air guide 522. Both the first blowing duct 503 and the second blowing duct 504 are configured such that their rear ends communicate with the rear opening 5101 and their front ends communicate with the front opening 5102.

[0102] In the air guide cover 50, the first expansion air duct 501 and the second expansion air duct 502 allow the droplets to spread upward and downward while being blown forward, covering the larger upper and lower areas of the target area. In addition, the first blowing air duct 503 and the second blowing air duct 504 are used to allow air flow to pass directly through, and can mainly be used to directly blow the droplets thrown out by the centrifugal atomizing disk 10 forward, so that the fog field covers the middle part of the area facing the wind-sent centrifugal atomizing device 100. It should be noted that the airflow at the outer edge of the first blowing air duct 503 and the outer edge of the second blowing air duct 504 can also have a trend of spreading the droplets to the left and right for a certain distance under the guidance of the air guide housing 51.

[0103] In one embodiment, in the case of the first widening air duct 501, the second widening air duct 502, the first blowing air duct 503, and the second blowing air duct 504 inside the air guide cover 50, Figure 6 、 Figure 7 The front opening 5102 includes an upper edge 5103 and a lower edge 5104 located on the upper and lower sides of the air guide cover 50, as well as a left edge 5106 and a right edge 5107 located on the left and right sides of the air guide cover 50. The airflow from the first expanding air duct 501 is at least partially delivered through the upper edge 5103, the airflow from the second expanding air duct 502 is at least partially delivered through the lower edge 5104, the airflow from the first blowing air duct 503 is at least partially delivered through the left edge 5106, and the airflow from the second blowing air duct 504 is at least partially delivered through the right edge 5107.

[0104] Optionally, the upper edge 5103 and the lower edge 5104 are straight or approximately straight, and have a certain width. Compared with the solution in which the front opening 5102 is circular, the upper edge 5103 and the lower edge 5104 of this embodiment have a certain width, allowing the uppermost area and the lowermost area of ​​the fog field blown forward by the air-blown centrifugal atomization equipment 100 to cover a wider distance to the crops.

[0105] Optionally, the left rim 5106 and the right rim 5107 are arc-shaped rims, and the arc centers of the left rim 5106 and the right rim 5107 are preferably located on the central axis of the centrifugal atomization disk 10. In this way, the radial distances from the centrifugal atomization disk 10 to the left rim 5106 and the right rim 5107 are basically the same. In this way, the centrifugal speeds of the droplets on the front side of the left rim 5106 and the front side of the right rim 5107 are almost the same, and they can basically be captured by the airflow and blown to the target area together, and the fog field is uniform and stable.

[0106] In other embodiments, the front opening 5102 may also be in an oval shape or other shapes.

[0107] In one embodiment, a seat 54 is further included. The seat 54 is disposed inside the air guide housing 51, and the central axis of the air guide housing 51 passes through the seat 54. The first air guide blade 521 and the second air guide blade 522 are connected to the seat 54, and / or the air guide device 20 is directly or indirectly connected to the seat 54.

[0108] The setting of the seat 54 can support the air guide shell 51 from the middle to the outside, and enhance the structural stability of the air guide cover 50. When the air-transported centrifugal atomization device 100 is mounted on the body of the plant protection vehicle 200, the plant protection vehicle 200 often needs to climb hills and cross bumps when driving in the farmland, which will cause certain bumps. Although the vibration of the air-transported centrifugal atomization device 100 can be reduced by a shock-absorbing design, the air guide cover 50 will inevitably generate certain vibrations during driving. By providing a support point in the middle by the seat 54, the deformation of the air guide shell 51 during the bumpy vibration process is reduced, or the deformation of each air duct is reduced, which is conducive to providing a more stable wind field, and then obtaining a more stable fog field, and blowing the liquid medicine to the target area more accurately and stably.

[0109] Optionally, the rear ends of the first air guide blade 521 and the rear ends of the second air guide blade 522 are both connected to the periphery of the seat 54. The seat 54 directly fixes the rear ends of the air guide blade 52 to ensure the structural stability of the air guide blade 52 when the airflow enters the expanded air duct.

[0110] Optionally, the seat 54 also provides a mounting location for a centrifugal atomization device, which is disposed on a side of the seat 54 facing away from the air supply device 60, and is fixed to the seat 54 by fastening with fasteners, snap-fitting, or the like. Optionally, the centrifugal atomization device includes a drive device 30, a flow guide device 20, and a centrifugal atomization disk 10, and the housing of the drive device 30 is fixed to the seat 54.

[0111] Optionally, the first blowing air duct 503 and the second blowing air duct 504 are located on the left and right sides of the seat 54 .

[0112] In one embodiment, the ends of the first and second air guide vanes 521, 522 proximate the rear opening 5101 are connected to the seat 54; the surfaces of the first and second air guide vanes 521, 522 proximate the central axis of the air guide cover 50 are respectively connected to the seat 54 via first connecting portions 551. It is understood that the front end of the air guide vanes 52 needs to maintain a certain distance from the front end of the air guide housing 51 to form an expanded air duct outlet. By providing the first connecting portion 551 on the inner sides of the first and second air guide vanes 521, 522, the ability of the first and second air guide vanes 521, 522 to resist inward deformation can be improved, maintaining the shape of the air guide vanes 52 to diffuse the airflow upward and downward.

[0113] Optionally, the surfaces of the first air guide blade 521 and the second air guide blade 522 facing away from the central axis of the air guide cover 50 are respectively connected to the air guide housing 51 via a second connecting portion 552. The provision of the second connecting portion 552 allows the air guide housing 51 to be connected to the seat 54 via the second connecting portion 552 and the air guide blade 52, thereby providing support for the air guide blades and the air guide housing 51. This improves the ability to resist deformation under vibration without affecting airflow movement, thereby enhancing the stability of the wind field and fog field.

[0114] Optionally, the left side of the first air guide blade 521, the right side of the first air guide blade 521, the left side of the second air guide blade 522, and the right side of the second air guide blade 522 are respectively connected to the air guide housing 51 via third connecting portions. The provision of the third connecting portions can provide enhanced structural stability of the air guide blade 52. The third connecting portions are also used to cooperate with the air guide housing 51 and the air guide blade 52 to enclose and form an expanded air duct, separating the expanded air duct from the blowing air duct.

[0115] Optionally, the first connection portion 551 , the second connection portion 552 , and the third connection portion are all connecting ribs.

[0116] In one embodiment, a centrifugal atomization device includes a device body and a centrifugal atomization disk 10. The device body includes a flow guide device 20 and a drive device 30 connected thereto. The flow guide device 20 is used to transport liquid to the centrifugal atomization disk 10. The drive device 30 includes a fixed seat and a drive shaft. The fixed seat of the drive device 30 is connected to the flow guide device 20, and the drive shaft of the drive device 30 is connected to the centrifugal atomization disk 10 so that the centrifugal atomization disk 10 can rotate around the rotation axis under the drive of the drive device 30. The device body is connected to the air guide cover 50 or the air supply device 60.

[0117] The driving device 30 can be, but is not limited to, a motor. The flow guide device 20 is a flow guide housing and a flow guide pipe. A flow guide cavity is formed inside the flow guide housing. The flow guide pipe is connected to the flow guide housing. The flow guide pipe is provided with a liquid inlet. A liquid outlet is provided on the side of the flow guide housing close to the centrifugal atomizing disk 10. The liquid inlet is connected to the liquid outlet through the flow guide cavity. The liquid inlet is used to connect to a liquid supply device (such as a liquid storage tank). Under the action of a pump or other force, the liquid is sent from the liquid supply device to the flow guide cavity and from the liquid outlet to the centrifugal atomizing disk 10, so that the liquid enters the plurality of atomizing flow channels 101. The air supply device 60 includes a fan.

[0118] Optionally, the driving device 30 is installed on a side of the seat 54 inside the air deflector facing away from the air supply device 60 .

[0119] In one embodiment, referring to Figure 1 、 Figure 2 In the axial direction of the air-flow centrifugal atomization device 100, the centrifugal atomization disk 10 is located outside the air guide 50, that is, the centrifugal atomization disk 10 is located on the side of the air guide 50 away from the air supply device 60 and in front of the front opening 5102 of the air guide 50. The air guide 50 does not block the outer periphery of the centrifugal atomization disk 10.

[0120] It is understandable that when the air-transported centrifugal atomizing device 100 is mounted on the plant protection vehicle 200 for use, the air-transported centrifugal atomizing device 100 is used to spray liquid medicine on the crops on the side of the unmanned vehicle, for example, it is used to spray liquid medicine on the crops on the left, right, front, and rear sides of the unmanned vehicle. The centrifugal atomizing disk 10 is arranged outside the air guide 50 to prevent the air guide 50 from surrounding the outer ring of the centrifugal atomizing disk 10. In this way, during the spraying operation (for example, when the air-transported centrifugal atomizing device 100 is configured to spray liquid medicine to the left or upper left of the unmanned vehicle), the small amount of droplets sprayed toward the periphery by the centrifugal atomizing disk 10 is reduced or avoided from floating in the air and eventually settling to the inner wall of the air guide 50, thereby reducing the possibility of droplets appearing on the inner wall of the air guide 50, reducing pollution and waste, and improving the user experience.

[0121] In other embodiments, not shown in the figure, in the axial direction of the air-conveyed centrifugal atomization device 100, the centrifugal atomization disk 10 is located inside the air guide cover 50, and the centrifugal atomization disk 10 is located between the front opening 5102 and the rear opening 5101 of the air guide shell 51.

[0122] In one embodiment, referring to Figure 1 、 Figure 2 、 Figure 12 、 Figure 13 The centrifugal atomization device is also provided with an outer cover 40, which includes a mounting ring 41 and a plurality of baffle bars 42. The baffle bars 42 are connected to the mounting ring 41. The mounting ring 41 is connected to the device body. The baffle bars 42 surround the outer circumference of the centrifugal atomization disk 10. The baffle bars extend a certain distance from the back to the front, and adjacent baffle bars 42 are spaced apart. In this way, the baffle bars 42 surround the outside of the centrifugal atomization disk 10 and can protect the centrifugal atomization disk 10.

[0123] The outer cover 40 plays a role in protecting the centrifugal atomizing disk 10. For example, if corn leaves or other leaves or foreign objects accidentally extend into the area near the centrifugal atomizing disk 10, they will first be blocked by the baffle bars 42 surrounding the centrifugal atomizing disk 10. The baffle bars 42 of the outer cover 40 play a role in blocking blade foreign objects from approaching the centrifugal atomizing disk 10. Among them, when the centrifugal atomizing disk 10 is in a rotating working state, the baffle bars 42 can prevent blades and other foreign objects from being drawn into the centrifugal atomizing disk 10, thereby preventing the centrifugal atomizing disk 10 from being damaged or the crop from being damaged. When the centrifugal atomizing disk 10 is in a non-rotating standby state, the baffle bars 42 can block blades and other foreign objects to prevent foreign objects from scratching or damaging the centrifugal atomizing disk 10. It can be understood that adjacent baffle bars 42 are spaced apart from each other, and a passage is formed between adjacent baffle bars 42, through which the atomized droplets centrifugally thrown out by the centrifugal atomizing disk 10 can pass. The setting of the outer cover 40 does not affect the function of the centrifugal atomizing disk 10 to throw out atomized droplets.

[0124] In the centrifugal atomization device of the present application, a plurality of barrier strips 42 of the outer cover 40 are arranged around the outside of the centrifugal atomization disk 10, which can protect the centrifugal atomization disk 10 from being damaged by foreign objects, and protect crops from being damaged by the centrifugal atomization disk 10. At the same time, it can protect personnel from being injured by the rupture of the centrifugal atomization disk 10, and can solve the problem caused by the direct exposure of the centrifugal atomization disk 10.

[0125] Optionally, the mounting ring 41 of the outer cover 40 is mounted on the outside of the flow guide device 20 , which allows the barrier strip to be closer to the centrifugal atomizing disk 10 compared to the mounting ring 41 of the outer cover 40 being mounted on the driving device 30 .

[0126] The inventor of the utility model discovered that when a centrifugal atomization device is mounted on an unmanned vehicle, the centrifugal atomization device generally sprays liquid medicine on the crops from the side of the crops (for example, the left or right side). In most cases, the axis of the centrifugal atomization disk 10 is parallel to the ground plane (for example, when spraying horizontally to the left), or the axis of the centrifugal atomization disk 10 maintains a certain angle with the ground plane (for example, when spraying toward the upper left or the lower left). In this way, the baffle bar 42 is parallel to the ground plane or maintains an angle of less than degrees with the ground plane in most cases. At this time, a certain amount of droplets may accumulate on the baffle bar 42, forming sedimentation. Among them, the droplets that settle and accumulate on the baffle bar 42 may cause one or more of the following problems:

[0127] First, the droplets settled on the baffle bar 42 are seen by the user, making the user feel that these droplets are not blown out, which feels wasteful and affects the user experience; second, the droplets on the baffle bar may be sucked back backwards, and the sucked back droplets contaminate the air guide cover 50, centrifugal atomization device, fan, etc., causing waste, pollution, and affecting the user's viewing experience.

[0128] In order to improve and reduce the accumulation of droplets on the baffle strips 42 of the outer cover 40, in one embodiment, the centrifugal atomization device configures the outer cover 40 to be rotatable. For example, the outer cover 40 is rotatably connected to the guide device 20, or the outer cover 40 is rotatably connected to the fixed seat (such as a motor seat) of the drive device 30. The several baffle strips 42 of the outer cover 40 surrounding the outside of the centrifugal atomization disk 10 not only have a protective effect, but also can reduce the speed of the droplets, making the droplets easier to be controlled by the wind field, reducing the power requirements of the fan, and making the fog field more stable. In addition, the baffle strips 42 can also play a role in breaking up the droplets and atomizing them again, and the atomized particles are finer.

[0129] Optionally, an annular connecting track is provided outside the guide device 20, and the mounting ring 41 of the outer cover 40 is rotatably mounted on the connecting track.

[0130] In one embodiment, the outer cover 40 is rotatably connected to the device body by a mounting ring 41. On this basis, the outer cover 40 in the centrifugal atomizing device and the air-transported centrifugal atomizing equipment 100 is configured as follows: when the centrifugal atomizing device is in working condition, the direction of rotation of the outer cover 40 is opposite to the direction of rotation of the centrifugal atomizing disk 10, that is, the centrifugal atomizing disk 10 rotates around a first direction to spray out atomized droplets, and the outer cover 40 rotates around a second direction, and the first direction is opposite to the second direction. For example, the first direction is clockwise and the second direction is counterclockwise, and the first direction is counterclockwise and the second direction is clockwise. It is understandable that when the centrifugal atomizing device is working, the outer cover 40 rotates in the opposite direction to the centrifugal atomizing disk 10. When the droplets thrown out by the centrifugal atomizing disk 10 hit the baffle bar 42, since the outer cover 40 rotates in the opposite direction, the baffle bar 42 now has a movement trend opposite to the droplets, and the droplets are more likely to leave the baffle bar 42.

[0131] When the centrifugal atomizing spraying equipment is in operation, when the outer cover 40 and the centrifugal atomizing disk 10 rotate in opposite directions (for example, the outer cover 40 rotates in opposite directions at a lower speed), at least one of the following effects can be achieved: First, since the outer cover 40 rotates in opposite directions, the baffle bars 42 have a movement trend opposite to that of the droplets, and the droplets are more likely to leave the baffle bars 42, and large droplets are less likely to form on the baffle bars 42. Second, taking the case where the centrifugal atomizing disk 10 rotates clockwise and the outer cover 40 rotates counterclockwise as an example, the movement trend of the droplets sprayed from the centrifugal atomizing disk 10 is opposite to the rotation trend of the outer cover 40, and the droplets in the air are less likely to settle on the baffle bars 42. In this way, the amount of liquid settled on the baffle bars 42 can be reduced, thereby improving the user experience and preventing the droplets settled on the baffle bars 42 from subsequently dripping and contaminating other areas. Third, the counter-rotating baffles 42 of the outer cover 40 reduce the velocity of the centrifugally ejected droplets, making them more easily controlled by the fan's wind field. This allows the atomized droplets to be stably delivered to the target area by the fan, resulting in a more stable mist field. Fourth, the counter-rotating baffles 42 of the outer cover 40 better break up the mist droplets, enhancing the secondary atomization effect of the mist droplets.

[0132] Optionally, when the centrifugal atomization device is in operation, the rotation direction of the outer cover 40 is opposite to that of the centrifugal atomization disk 10 , and the rotation speed of the outer cover 40 is lower than that of the centrifugal atomization disk 10 .

[0133] In the embodiment where the outer cover 40 is rotatable, the outer cover 40 is rotated by the drive device 30, in which case the outer cover 40 is configured to rotate actively. Alternatively, the outer cover 40 is rotated by wind from a fan, in which case the outer cover 40 is configured to rotate actively. Alternatively, the outer cover 40 is rotated by droplets centrifugally ejected from the centrifugal atomizing disk 10 hitting the outer cover 40, causing the outer cover 40 to rotate.

[0134] In one embodiment, the barrier strip 42 includes a strip body and an extension end connected to the front side of the strip body. The strip body is located outside the area where the atomizing flow channel 101 is located, and the extension end extends forward relative to the area where the atomizing flow channel 101 is located.

[0135] The outer cover 40 of the present application includes at least one barrier strip 42 surrounding the outer circumference of the centrifugal atomizing disk 10. The barrier strip 42 not only provides protection but also re-atomizes the mist droplets, reducing the droplet size and making them more uniform, resulting in a better atomization effect. Furthermore, the main body of the barrier strip 42 cooperates with the outer extension end portion to ensure a re-atomization effect on the mist droplets.

[0136] The present application further provides an air guide hood 50 , which can be applied to the air-transported centrifugal atomization device 100 in any of the aforementioned embodiments. The air guide hood 50 includes an air guide housing 51 and a first air guide vane 521 and a second air guide vane 522 disposed in the air guide housing 51 .

[0137] A first expanding air duct 501 is defined between the first air guide piece 521 and the air guide shell 51, and a second expanding air duct 502 is defined between the second air guide piece 522 and the air guide shell 51; the first expanding air duct 501 and the second expanding air duct 502 are both configured as follows: one end is connected to the rear opening 5101, and the other end is connected to the front opening 5102, extending from an end close to the rear opening 5101 to an end close to the front opening 5102 in a direction away from the central axis of the air guide shell 51.

[0138] The provision of the air guide cover 50 is conducive to allowing the air-delivered centrifugal atomization device 100 to obtain a larger spray coverage area, and the distance between the upper and lower edges of the spray coverage area is greater than the distance between the left and right transitions of the spray coverage area.

[0139] It is understandable that the structure of the air guide cover 50 can be the same as the structure of any air guide cover 50 in the air-transported centrifugal atomization device 100.

[0140] In one embodiment, referring to Figure 17 The wind guide cover 50 of the present application is additionally provided with a wind gathering piece 53, which is used to guide part of the airflow to the central area of ​​the wind guide shell 51, thereby improving the air pressure in the central area of ​​the wind guide shell 51. The wind gathering piece 53 is provided inside the wind guide shell 51, and the wind gathering piece 53 extends from one end close to the front opening 5102 to one end away from the front opening 5102 in a direction close to the first axis. The wind gathering piece 53 extends from one end close to the rear opening 5101 to one end close to the front opening 5102 in a direction close to the first axis. Among them, the area on the side of the wind guide piece 52 close to the first axis is the inner area of ​​the tongue piece, and the wind gathering piece 53 is used to guide part of the airflow to the inner area of ​​the tongue piece.

[0141] In general, the air guides 52 expand outward from back to front, while the air concentrators 53 converge inward from back to front. The air concentrators 53 direct some airflow toward the first axis, thereby adding some airflow to the central area and reducing the risk of droplet backflow. This solution resulted in virtually no droplet backflow in actual operating scenario experiments.

[0142] Optionally, two air concentrators 53 are provided within the air guide housing 51. For ease of distinction, the two air concentrators 53 are referred to as the first air concentrator 531 and the second air concentrator 532. The left side of the first air guide 521 and the second air guide 522 are arranged in the left-right direction, while the first air concentrator 531 and the second air concentrator 532 are arranged in the up-down direction. Compared to air concentrators 53 provided only on the left or right side, this embodiment provides the first air concentrator 531 and the second air concentrator 532 in the left-right direction. The two air concentrators 53 work together from both the left and right sides to direct the airflow forward and toward the center, achieving a balanced air concentrating effect. This effectively prevents or reduces the back-absorption of droplets in both the left and right areas of the air guide housing 51. Furthermore, by concentrating air from both the left and right sides, the air concentrator 53 does not need to be tilted inward significantly from back to front. A smaller inward angle can achieve improved results, ensuring that most of the airflow is dispersed outward, achieving the effect of outward spray diffusion.

[0143] Optionally, along the direction surrounding the first axis, the first air guide pieces 521 , the first air collecting pieces 531 , the second air guide pieces 522 , and the second air collecting pieces 532 are distributed in sequence.

[0144] When the seat 54 is provided, the first air concentrating plate 531 is spaced apart from the seat 54, forming a third air duct 5031 therebetween. The second air concentrating plate 532 is spaced apart from the seat 54, forming a fourth air duct 5041 therebetween. The third air duct 5031 and the fourth air duct 5041 are each configured so that their ends are connected to the rear opening 5101 and the front opening 5102, respectively. The airflow flowing forward within the third and fourth air ducts 5031 and 5041 is primarily directed forward by the inner side surfaces of the first and second air concentrating plates 531, with a portion of the airflow directed toward the front of the seat 54, the front of the first and second air guide plates 521, and the front of the second air guide plates 522, thereby preventing droplets in the intermediate regions from being sucked back backward. It can be understood that the third air duct 5031 and the fourth air duct 5041 also play a certain role in blowing the mist droplets forward so that they reach the target area.

[0145] It can be understood that if the space between the inner side surface of the first air concentrating piece 531 and the seat 54 and the space between the inner side surface of the second air concentrating piece 532 and the seat 54 is sealed, although the air can be gathered to the middle area through the outer side surface of the first air concentrating piece 531 and the outer surface of the second air concentrating piece 532, the airflow that can be supplemented to the central area is small, and the effect of improving the droplet back suction situation is limited. It is not as good as the solution in which the third air duct 5031 is provided on the inner side of the first air concentrating piece 531 and the fourth air duct 5041 is provided on the inner side of the second air concentrating piece 532.

[0146] In one embodiment, the first wind concentrating piece 531 and the wind guide shell 51 are spaced apart, and a fifth wind duct 5032 is formed between the first wind concentrating piece 531 and the wind guide shell 51; the second wind concentrating piece 532 and the wind guide shell 51 are spaced apart, and a sixth wind duct 5042 is formed between the second wind concentrating piece 532 and the wind guide shell 51; the fifth wind duct 5032 and the sixth wind duct 5042 are both configured as follows: the two ends are respectively connected to the rear opening 5101 and the front opening 5102.

[0147] Correspondingly, the corresponding parts of the air guide shell 51 and the first air gathering piece 531 extend from back to front in the direction away from the first axis, and the corresponding parts of the air guide shell 51 and the second air gathering piece 532 extend from back to front in the direction away from the first axis, so that the fifth air duct 5032 and the sixth air duct 5042 can diffuse to a certain extent to the left and right respectively from back to front under the guiding effect of the air guide shell 51, thereby expanding the left and right sides of the spray spraying area.

[0148] In the description herein, it should be understood that terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0149] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0150] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0151] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. An air-conveyed centrifugal atomization device, characterized in that: It comprises an air guide cover (50), a centrifugal atomization device and an air supply device (60); The two ends of the air guide cover (50) are respectively provided with a rear opening (5101) and a front opening (5102); the end of the air guide cover (50) provided with the rear opening (5101) is connected to the air supply device (60); the centrifugal atomizing device is used to spray mist droplets toward its periphery; the centrifugal atomizing device is located in front of the air supply device (60); the air supply device (60) is used to blow airflow toward the front opening (5102) of the air guide cover (50) so as to blow the mist droplets sprayed by the centrifugal atomizing device forward; The wind guide cover (50) comprises a wind guide shell (51) and at least two wind guide blades, the rear opening (5101) is arranged at the rear end of the wind guide shell (51), and the front opening (5102) is arranged at the front end of the wind guide shell (51); The inner diameter of the air guide housing (51) gradually increases from its rear end to its front end, and at least two air guide blades are respectively located on the upper and lower sides of the centrifugal atomization device, and form an expanded air duct with the inner wall of the air guide housing (51) to guide part of the air flow to diffuse in the upper and lower directions.

2. The air-conveying centrifugal atomization equipment according to claim 1, characterized in that: The air guide cover (50) is configured to enable the mist droplets sprayed by the air-supplied centrifugal atomization device to diffuse in a vertical direction with a greater amplitude than that in a horizontal direction under the action of airflow.

3. The air-conveying centrifugal atomization equipment according to claim 1, characterized in that: The angles between the upper and lower inner wall surfaces at the front end of the air guide housing (51) and the horizontal plane are not zero.

4. The air-conveying centrifugal atomization equipment according to claim 3, characterized in that: The upper and lower dimensions of the front opening (5102) are larger than the left and right dimensions of the front opening (5102).

5. The air-conveying centrifugal atomization equipment according to any one of claims 1 to 4, characterized in that: The air guide cover (50) further comprises a first air guide piece (521) and a second air guide piece (522) arranged inside the air guide housing (51), wherein the first air guide piece (521) and the second air guide piece (522) are arranged in an up-down direction; The first air guide piece (521) and the second air guide piece (522) are both configured to extend from an end close to the rear opening (5101) to an end close to the front opening (5102) in a direction away from the central axis of the air guide housing (51); The side of the first air guide piece (521) facing away from the second air guide piece (522) is a first tongue outer side surface, and a first widening air duct (501) is defined between the first tongue outer side surface and the inner side surface of the air guide shell (51); the side of the second air guide piece (522) facing away from the first air guide piece (521) is a second tongue outer side surface, and a second widening air duct (502) is defined between the second tongue outer side surface and the inner side surface of the air guide shell (51).

6. The air-conveying centrifugal atomization equipment according to claim 5, characterized in that: The air guide housing (51) comprises a first tongue-shaped plate portion (511) and a second tongue-shaped plate portion (512); The first tongue-shaped plate portion (511) is located on a side of the first air guide piece (521) facing away from the second air guide piece (522), and the first widening air duct (501) is formed between the first tongue-shaped plate portion (511) and the first air guide piece (521); the second tongue-shaped plate portion (512) is located on a side of the second air guide piece (522) facing away from the first air guide piece (521), and the second widening air duct (502) is formed between the second tongue-shaped plate portion (512) and the second air guide piece (522); The first tongue-shaped plate portion (511) and the second tongue-shaped plate portion (512) are both configured to extend from an end close to the rear opening (5101) to an end close to the front opening (5102) in a direction away from the central axis of the air guide housing (51).

7. The air-conveying centrifugal atomization equipment according to claim 5, characterized in that: The left side of the first air guide piece (521) and the left side of the second air guide piece (522) are spaced apart from each other, and a first blowing air duct (503) is formed between the inner side surface of the air guide housing (51), the left side of the first air guide piece (521), and the left side of the second air guide piece (522); The right side of the first air guide piece (521) and the right side of the second air guide piece (522) are spaced apart from each other, and a second blowing air duct (504) is formed between the inner side surface of the air guide housing (51), the right side of the first air guide piece (521), and the left side of the second air guide piece (522).

8. The air-conveying centrifugal atomization equipment according to claim 7, characterized in that: The front opening (5102) includes an upper edge (5105) (5103) and a lower edge (5104) located on the upper and lower sides of the wind guide cover (50), and also includes a left edge (5106) and a right edge (5107) located on the left and right sides of the wind guide cover (50); The left rim (5106) and the right rim (5107) are arc-shaped rims, and / or the upper rim (5105)(5103) and the lower rim (5104) are straight lines.

9. The air-conveying centrifugal atomization equipment according to claim 5, characterized in that: It also includes a seat (54), and the seat (54) is arranged inside the air guide housing (51); The first air guide piece (521) and the second air guide piece (522) are connected to the seat (54); and / or the air guide housing (51) is connected to the seat (54).

10. The air-conveying centrifugal atomization equipment according to claim 9, characterized in that: The centrifugal atomization device is arranged on a side of the seat (54) away from the air supply device (60), and the centrifugal atomization device is connected to the seat (54).

11. The air-conveying centrifugal atomization equipment according to claim 9, characterized in that: The ends of the first air guide piece (521) and the second air guide piece (522) close to the rear opening (5101) are connected to the seat (54); and / or, the surfaces of the first air guide piece (521) and the second air guide piece (522) close to the central axis of the air guide cover (50) are respectively connected to the seat (54) through a first connecting portion (551); and / or, the surfaces of the first air guide piece (521) and the second air guide piece (522) away from the central axis of the air guide cover (50) are respectively connected to the air guide shell (51) through a second connecting portion (552); and / or, the left and right sides of the first air guide piece (521) and the left and right sides of the second air guide piece (522) are respectively connected to the air guide shell (51) through a third connecting portion.

12. The air-conveying centrifugal atomization equipment according to any one of claims 1 to 4, characterized in that: The centrifugal atomization device comprises a device body and a centrifugal atomization disk (10), wherein the device body is connected to the air guide cover (50) or the air supply device (60); The device body comprises a driving device (30) and a flow guiding device (20) connected to each other, wherein the flow guiding device (20) is used to transport liquid to the centrifugal atomizing disk (10), and the driving device (30) is connected to the centrifugal atomizing disk (10), and the driving device (30) is used to drive the centrifugal atomizing disk (10) to rotate.

13. The air-conveying centrifugal atomization equipment according to claim 12, characterized in that: The centrifugal atomizing disk (10) is located outside the air guide cover (50), and the centrifugal atomizing disk (10) is located on a side of the air guide cover (50) facing away from the air supply device (60).

14. An air guide cover, characterized in that: Suitable for use in the air-conveyed centrifugal atomizing spraying equipment according to any one of claims 1 to 13; The air guide cover (50) comprises an air guide shell (51), a first air guide blade (521), and a second air guide blade (522); a rear opening (5101) and a front opening (5102) are respectively provided at two axial ends of the air guide shell (51); the first air guide blade (521) and the second air guide blade (522) are provided inside the air guide shell (51) and are arranged in the up-down direction; A first expanding air duct (501) is defined between the first air guide piece (521) and the air guide shell (51), and a second expanding air duct (502) is defined between the second air guide piece (522) and the air guide shell (51); the first expanding air duct (501) and the second expanding air duct (502) are both configured as follows: one end is connected to the rear opening (5101), and the other end is connected to the front opening (5102), and extends from an end close to the rear opening (5101) to an end close to the front opening (5102) in a direction away from the central axis of the air guide shell (51).

15. A plant protection vehicle (200), characterized in that: include: body; The air-conveying centrifugal atomizing device (100) according to any one of claims 1 to 13, wherein the air-conveying centrifugal atomizing device (100) is mounted on the vehicle body.

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