Centrifugal atomization spraying disc, centrifugal atomizer and unmanned aerial vehicle

Abstract

The utility model discloses a centrifugal atomization spraying disc, a centrifugal atomizer and an unmanned aerial vehicle, and the centrifugal atomization spraying disc comprises a first cover plate, a second cover plate and a spray head, the second cover plate is connected with the first cover plate, the second cover plate and the first cover plate are arranged in a spaced mode, the size of the second cover plate is smaller than that of the receding hole, the second cover plate is aligned with the receding hole, and therefore the first cover plate and the second cover plate do not coincide in the axial direction of the receding hole; the centrifugal atomization spraying disc is of an integrated structure. According to the scheme, the using amount of materials is reduced, the machining process is simplified, the machining cost is reduced, in addition, the centrifugal atomization spraying disc is lighter, so that the requirement for the load of the motor is low, the energy consumption of the motor is smaller during atomization operation, and the atomization capacity of the spraying disc is higher under the condition that the motor with the same output power is used.

Description

Technical Field

[0001] The present application relates to the technical field of liquid atomization, and in particular to a centrifugal atomizing spray disc, a centrifugal atomizer, and a drone. Background Art

[0002] With the continuous development of agricultural technology, the popularity of agricultural machinery is increasing. Automatic pesticide spraying equipment plays an important role in agricultural machinery. There are two main types of automatic pesticide spraying equipment: pressure nozzles and centrifugal atomizing spray discs. Pressure nozzles require higher liquid pressure, so both the pipes and the water pump must be able to withstand high pressure. Pressure nozzles also have drawbacks such as easy clogging, difficulty in cleaning, and a narrow flow adjustment range. As a result, centrifugal atomizing spray discs are becoming increasingly popular.

[0003] Centrifugal atomizing spray discs include single-layer and double-layer centrifugal atomizing spray discs. Double-layer centrifugal atomizing spray discs utilize the space between two upper and lower spray discs as the atomizing chamber, providing excellent atomization. However, existing double-layer centrifugal atomizing spray discs also have certain drawbacks. Double-layer centrifugal atomizing spray discs require the upper and lower spray discs to be stacked and assembled, which increases the assembly process and material and manufacturing costs. Furthermore, they are heavy, placing higher load requirements on the motor, and consume more energy during atomization operations. Utility Model Content

[0004] The purpose of the embodiments of the present utility model is to provide a centrifugal atomizing spray disc, a centrifugal atomizer and a drone, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] Provided is a centrifugal atomizing spray disc, comprising:

[0007] The first cover plate has an avoidance hole at the center;

[0008] a second cover plate connected to the first cover plate and spaced apart from the first cover plate, the second cover plate being smaller than the avoidance hole and aligned with the avoidance hole so that the first cover plate and the second cover plate do not overlap in the axial direction of the avoidance hole;

[0009] The centrifugal atomizing spray disc is an integrated structure.

[0010] Optionally, the first cover plate is an upper cover plate arranged close to the guide cover, and the second cover plate is a lower cover plate arranged on a side of the first cover plate away from the guide cover.

[0011] Optionally, an atomization assembly is further included, wherein the atomization assembly is arranged between the first cover plate and the second cover plate, and the first cover plate is connected to the second cover plate through the atomization assembly.

[0012] Optionally, the atomization assembly includes a plurality of guide blades, which are distributed circumferentially around the central axis of the avoidance hole, and two sides of the guide blades are respectively connected to the first cover plate and the second cover plate.

[0013] Optionally, the guide vane includes a first connecting side connected to the first cover plate and a second connecting side connected to the second cover plate, and the guide vane is configured to be stepped with at least two steps, and the steps rise step by step from the first connecting side to the second connecting side.

[0014] Optionally, the guide vane includes three steps.

[0015] Optionally, the atomization assembly includes a first atomization protrusion.

[0016] Optionally, the first atomizing protrusion includes at least two atomizing protrusion circles arranged around the avoidance hole, and each of the atomizing protrusion circles includes a plurality of first protrusions arranged at intervals.

[0017] Optionally, in the atomizing protrusion circle farthest from the avoidance hole, a side of the first protrusion close to the central axis of the avoidance hole is configured to be in a pointed tooth shape.

[0018] Optionally, a second atomizing protrusion is provided on a side of the first cover plate away from the second cover plate.

[0019] Optionally, the second atomizing protrusion includes a plurality of second protrusions distributed around the circumference of the avoidance hole.

[0020] Optionally, the second protrusion is configured to be in a pointed tooth shape on a side close to the central axis of the avoidance hole.

[0021] Optionally, the first cover plate includes a truncated cone-shaped pressure flow portion, and the pressure flow portion gradually tilts from the inside to the outside toward the side where the second cover plate is located.

[0022] Optionally, the first cover plate further includes a connecting portion connected to the inner circle of the pressure flow portion, the connecting portion is arranged parallel to the second cover plate, and the avoidance hole is formed on the inner periphery of the connecting portion.

[0023] Optionally, a connector for connecting to a rotary drive mechanism is provided at the center of the second cover plate.

[0024] Optionally, the centrifugal atomizing spray disc is an integral injection-molded or cast structure.

[0025] On the other hand, a centrifugal atomizer is provided, comprising a rotary drive mechanism, a guide cover and the above-mentioned centrifugal atomizing spray disc, wherein the guide cover is used to provide liquid to the centrifugal atomizing spray disc, and the rotary drive mechanism is connected to the second cover plate to drive the centrifugal atomizing spray disc to rotate relative to the guide cover.

[0026] Optionally, the rotary drive mechanism, the guide cover and the centrifugal atomizing spray disc are arranged in sequence from top to bottom, and the output shaft of the rotary drive mechanism passes through the guide cover and is connected to the centrifugal atomizing spray disc.

[0027] Optionally, the guide cover includes a guide cover body and a water inlet boss corresponding to the avoidance hole, and a water inlet through hole is provided in the center of the water inlet boss; the water inlet boss is embedded in the centrifugal atomizing spray disc through the avoidance hole to be close to the second cover plate, and a diffusion cavity is formed between the water inlet boss and the second cover plate.

[0028] Optionally, a side of the first cover plate away from the second cover plate is close to the guide cover body, and a water outlet gap is formed between the first cover plate and the guide cover body.

[0029] Optionally, the water inlet boss includes a first boss portion and a second boss portion, the first boss portion protrudes toward the side where the second cover plate is located relative to the guide cover, the second boss portion is arranged on the first boss portion and protrudes toward the side where the second cover plate is located relative to the first boss portion, and the water inlet through hole passes through the first boss portion and the second boss portion.

[0030] On the other hand, a drone is provided, comprising the above-mentioned centrifugal atomizer.

[0031] The beneficial effects of the present application are as follows: the present utility model provides a centrifugal atomizing spray disc, which is a double-layer structure including a first cover plate and a second cover plate, and the entire centrifugal atomizing spray disc is an integrated structure, wherein a avoidance hole corresponding to the second cover plate is provided in the center of the first cover plate, so that the first cover plate and the second cover plate do not overlap in the axial direction, and can be demolded from both sides along the axial direction of the spray disc during injection molding or casting. Therefore, the entire centrifugal atomizing spray disc of this scheme can be directly injection molded or cast as a whole without the need for additional assembly steps. Compared with the existing double-layer combined spray disc structure, this scheme reduces the amount of material used, simplifies the processing technology, and reduces the processing cost. In addition, the centrifugal atomizing spray disc of this scheme is lighter, so the load requirement for the motor is lower, and the energy consumption of the motor during atomization operation is smaller. When using a motor with the same output power, the spray disc of this scheme has a stronger atomization ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present application is further described in detail below with reference to the accompanying drawings and examples.

[0033] Figure 1 This is a schematic structural diagram of the centrifugal atomizing spray disc from a top side perspective according to an embodiment of the present application;

[0034] Figure 2 for Figure 1 Enlarged view of area A in the middle;

[0035] Figure 3 for Figure 1 Enlarged view of area B in the middle;

[0036] Figure 4 This is a schematic structural diagram of the centrifugal atomizing spray disc from a bottom side perspective according to an embodiment of the present application;

[0037] Figure 5 for Figure 4 Enlarged view of area C in the middle;

[0038] Figure 6 This is a schematic structural diagram of the centrifugal atomizer described in an embodiment of the present application;

[0039] Figure 7 This is a cross-sectional view of the centrifugal atomizer described in an embodiment of the present application;

[0040] Figure 8 for Figure 7 Enlarged view of area D in the middle;

[0041] Figure 9 This is a schematic diagram of the explosion of the centrifugal atomizer described in the embodiment of the present application.

[0042] In the picture:

[0043] 100. Centrifugal atomizing spray disc; 1. First cover plate; 11. Avoidance hole; 12. Connecting part; 13. Pressure flow part; 14. Atomizing serrations; 2. Second cover plate; 3. Guide vane; 31. First step; 32. Second step; 33. Third step; 4. First atomizing protrusion; 41. Atomizing protrusion ring; 411. First protrusion; 5. Second atomizing protrusion; 51. Second protrusion; 6. Connector; 200. Rotary drive mechanism; 300. Guide cover; 301. Guide cover body; 302. Water inlet boss; 3021. First boss portion; 3022. Second boss portion; 303. Water inlet through-hole. DETAILED DESCRIPTION

[0044] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0045] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to 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 specific circumstances.

[0046] In this application, 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.

[0047] As mentioned above, the existing double-layer centrifugal atomizing spray disc requires the upper and lower spray discs to be stacked and assembled, which increases the assembly process and has higher material and manufacturing costs. Moreover, it is heavy and has higher load requirements for the motor, resulting in higher energy consumption of the motor during atomization operation.

[0048] In order to overcome the above technical problems, the present embodiment provides a centrifugal atomizing spray disc 100, which simplifies and lightweights the structure of the centrifugal atomizing spray disc 100 while retaining the advantages of the existing double-layer centrifugal atomizing spray disc 100, thereby achieving the effects of reducing costs, reducing weight, and improving atomization capacity.

[0049] The centrifugal atomizing spray disc 100 of this embodiment can be used in a centrifugal atomizer and can be used in the agricultural field.

[0050] The centrifugal atomizing spray disc 100 of this embodiment includes:

[0051] The first cover plate 1 has a center-mounted avoidance hole 11;

[0052] a second cover plate 2 connected to the first cover plate 1 and spaced apart from the first cover plate 1, the second cover plate 2 being smaller than the avoidance hole 11 and aligned with the avoidance hole 11 so that the first cover plate 1 and the second cover plate 2 do not overlap in the axial direction of the avoidance hole 11;

[0053] The centrifugal atomizing spray disc 100 is an integrated structure.

[0054] In the centrifugal atomizer, the centrifugal atomizing spray disc 100 of this embodiment needs to be used in combination with the rotary drive mechanism 200 and the guide cover 300. The rotary drive mechanism 200 can be but is not limited to a motor, and its output shaft is connected to the second cover plate 2, which can drive the centrifugal atomizing spray disc 100 to rotate at high speed; the guide cover 300 has a certain cavity, which includes a water pipe joint and a water inlet hole 303. The water pipe joint is used to connect with the boosting water pipe, and the water inlet hole 303 is aligned with the center of the centrifugal atomizing spray disc 100. During operation, the pressurized liquid enters the guide cover 300 through the boosting water pipe, and then enters the centrifugal atomizing spray disc 100 through the water inlet hole 303 of the guide cover 300. Under the action of the high-speed rotating centrifugal atomizing spray disc 100, the liquid rotates at high speed, and the high-speed rotating liquid is quickly thrown out under the action of centrifugal force. Usually, an atomizing assembly is also provided on the centrifugal atomizing spray disc 100. The rapidly thrown liquid quickly disperses when it hits the atomizing assembly, thereby achieving the purpose of atomizing spraying.

[0055] The centrifugal atomizing spray disc 100 of this embodiment focuses on integrating the entire centrifugal atomizing spray disc 100 while maintaining its dual-layer structure. Conventional dual-layer atomizing spray discs that are directly integrated must be manufactured using CNC (Computer Numerical Control) technology due to the narrow space between the two layers and the complex flow-guiding structure. This process is difficult, significantly increasing manufacturing costs and failing to achieve weight reduction.

[0056] In this regard, the inventor of this application innovatively designed an integrated and easy-to-process centrifugal atomizing spray disc 100, referring to Figure 1 and Figure 4 In its specific structure: a avoidance hole 11 is provided in the center of the first cover plate 1; at the same time, a second cover plate 2 is provided spaced apart from the first cover plate 1, the size of the second cover plate 2 is smaller than the avoidance hole 11, and the second cover plate 2 is aligned with the avoidance hole 11, so that the first cover plate 1 and the second cover plate 2 do not overlap in the axial direction of the avoidance hole 11.

[0057] Specifically, a avoidance hole 11 with a size larger than that of the second cover plate 2 is set at the center of the first cover plate 1, so that the first cover plate 1 and the second cover plate 2 do not overlap in the axial direction of the spray disc. This structure can meet the requirements of direct demolding in the injection molding or casting process. Therefore, the centrifugal atomizing spray disc 100 of this scheme can be directly integrally formed by injection molding or casting. Compared with the CNC machining process, the machining difficulty, machining cost and machining efficiency of the injection molding process or the casting process can obviously be greatly reduced.

[0058] Specifically, taking injection molding as an example, a male mold and a female mold are provided, the male mold has a first cavity corresponding to the structure of the upper surface side of the first cover plate 1 and the second cover plate 2, and the female mold has a second cavity corresponding to the structure of the lower surface side of the first cover plate 1 and the second cover plate 2. After the molds are closed, they are combined to form a cavity corresponding to the structure of the centrifugal atomizing spray disc 100; after injection molding, the male mold and the female mold are separated to obtain an integrated centrifugal atomizing spray disc 100.

[0059] In summary, the centrifugal atomizing spray disc 100 of this embodiment has a double-layer structure comprising a first cover plate 1 and a second cover plate 2. During rotation, the centrifugal acceleration of the liquid is applied to achieve rapid atomization of the liquid medicine. Due to its double-layer structure, the centrifugal atomizing spray disc 100 of this embodiment has the advantages of high capacity for handling large fluid flows and a long service life. In addition, the centrifugal atomizing spray disc 100 of the present scheme is an integrated structure, wherein a avoidance hole 11 corresponding to the second cover plate 2 is provided at the center of the first cover plate 1, so that the first cover plate 1 and the second cover plate 2 do not overlap in the axial direction, and can be demolded from both sides along the axial direction of the spray disc during injection molding or casting. Therefore, the entire centrifugal atomizing spray disc 100 of the present scheme can be directly injection molded or cast as a whole without the need for additional assembly steps. Compared with the existing double-layer combined spray disc structure, the present scheme reduces the amount of material used, simplifies the processing technology, and reduces the processing cost. In addition, the centrifugal atomizing spray disc 100 of the present scheme is lighter, so the load requirement for the motor is lower, and the energy consumption of the motor during atomization operation is smaller. When using a motor with the same output power, the atomization ability of the spray disc of the present scheme is stronger.

[0060] In one embodiment, the first cover plate 1 is an upper cover plate disposed close to the air guide cover 300 , and the second cover plate 2 is a lower cover plate disposed on a side of the first cover plate 1 away from the air guide cover 300 .

[0061] Specifically, in the normal installation state, the guide cover 300 is located above the first cover plate 1, and the first cover plate 1 is located above the second cover plate 2, that is, the first cover plate 1 serves as the upper cover plate and the second cover plate 2 serves as the lower cover plate. During operation, the guide cover 300 inputs liquid into the second cover plate 2 through the avoidance hole 11 and ejects most of the liquid laterally from the space between the second cover plate 2 and the first cover plate 1. Generally, an atomization assembly is also provided between the first cover plate 1 and the second cover plate 2. The ejected liquid impacts the atomization assembly and disperses into atomization. When the liquid flow rate is large, a small amount of liquid can be ejected from above the first cover plate 1 and atomized.

[0062] In one embodiment, an atomization assembly is further included. The atomization assembly is disposed between the first cover plate 1 and the second cover plate 2 , and the first cover plate 1 is connected to the second cover plate 2 via the atomization assembly.

[0063] Specifically, an atomizer assembly is provided between the first cover plate 1 and the second cover plate 2 to atomize the liquid accelerated by rotation, thereby optimizing the atomization effect. By directly using the atomizer assembly as a structure connecting the first cover plate 1 and the second cover plate 2, there is no need to provide another connecting structure between the first cover plate 1 and the second cover plate 2. This ensures the reliability of the connection between the first cover plate 1 and the second cover plate 2 while simplifying the structure, reducing weight, lowering costs, and facilitating molding.

[0064] In one embodiment, the atomization assembly includes a plurality of guide blades 3 , which are distributed circumferentially around the central axis of the avoidance hole 11 , and two sides of the guide blades 3 are respectively connected to the first cover plate 1 and the second cover plate 2 .

[0065] Specifically, a plurality of guide blades 3 are arranged around the central axis of the avoidance hole 11. The rotating guide blades 3 can be used to promote the rapid rotation of the liquid, so that the liquid can obtain a higher rotation speed, and then obtain a greater centrifugal force and centrifugal throwing speed to optimize the atomization effect. At the same time, it can increase the lateral flying distance of the atomized droplets to expand the area of ​​atomization spraying and improve the spraying efficiency.

[0066] In one embodiment, the guide blade 3 includes a first connecting side connected to the first cover plate 1 and a second connecting side connected to the second cover plate 2. The guide blade 3 is configured to be stepped with at least two steps, and the steps are gradually raised from the first connecting side to the second connecting side.

[0067] The guide blades 3 of this solution are arranged in a stepped shape, the purpose of which is to cooperate with the stepped structure of the guide cover 300 to achieve the effect of fully accelerating the rotation of the liquid.

[0068] Specific, combined Figure 7 In the guide cover 300 structure used in combination with the centrifugal atomizing spray disc 100 of this scheme, the guide cover 300 includes a guide cover body 301 and a water inlet boss 302 corresponding to the avoidance hole 11, and a water inlet through-hole 303 is provided in the center of the water inlet boss 302; the first cover plate 1 is close to the guide cover body 301 on the side away from the second cover plate 2, and a water outlet gap is formed between the first cover plate 1 and the guide cover body 301; the water inlet boss 302 is embedded in the centrifugal atomizing spray disc 100 through the avoidance hole 11 to be close to the guide blade 3, and a diffusion chamber is formed between the water inlet boss 302 and the second cover plate 2; the output shaft of the rotation drive mechanism 200 is connected to the second cover plate 2 to drive the centrifugal atomizing spray disc 100 to rotate relative to the guide cover 300.

[0069] Specifically, the guide cover 300 is provided with a water inlet boss 302 extending into the centrifugal atomizing spray disc 100 to be close to the guide blade 3. The distance between the water inlet boss 302 and the second cover plate 2 is smaller, so that the water in the guide cover 300 can be fully pushed by the guide blade 3 to accelerate the rotation after entering the diffusion chamber from the water inlet hole 303, so that the liquid can obtain a greater initial rotational velocity, thereby achieving a better atomization effect. When the liquid flow rate is large, a small amount of liquid will overflow through the water outlet gap between the first cover plate 1 and the guide cover body 301 to the side of the first cover plate 1 away from the second cover plate 2. At this time, the second atomizing boss 5 provided on the first cover plate 1 can be used to atomize this part of the liquid.

[0070] Further, refer to Figure 8 ,exist Figure 8 In order to facilitate identification, dotted frames are provided to distinguish the various parts. It should be noted that the dotted frames in the figure do not belong to the original lines in the structure. The water inlet boss 302 includes a first boss portion 3021 and a second boss portion 3022. The first boss portion 3021 protrudes relative to the guide cover 300 toward the side where the second cover plate 2 is located. The second boss portion 3022 is arranged on the first boss portion 3021 and protrudes relative to the first boss portion 3021 toward the side where the second cover plate 2 is located. The water inlet through hole 303 passes through the first boss portion 3021 and the second boss portion 3022. Correspondingly, combined with Figure 2 The guide blade 3 is provided with three steps, extending outward from the central avoidance hole 11, including a gradually rising first step 31, a second step 32 and a third step 33. The top surface of the first step 31 is just close to the second boss portion 3022, the top surface of the second step 32 is just close to the first boss portion 3021, and the top surface of the third step 33 is connected to the second cover plate 2.

[0071] Specifically, the water inlet boss 302 is configured to be a stepped structure, with the distance between the second boss portion 3022 and the second cover plate 2 being the smallest, the distance between the first boss portion 3021 and the second cover plate 2 being slightly enlarged, and the distance between the guide cover body 301 and the second cover plate 2 being the largest. With this configuration, when the liquid rushes from the water inlet through hole 303 toward the second cover plate 2, it will first be pushed and accelerated by the first step 31 of the guide blade 3 in the space between the second boss portion 3022 and the second cover plate 2. The width of this space is the smallest, and the liquid is most concentrated. , which has the best acceleration effect on the liquid. When the incoming liquid flow rate is small, the liquid in this area can basically contact the guide blade 3, and the liquid accelerated by the first step 31 of the guide blade 3 can basically be directly thrown out laterally; since the guide cover 300 is a non-rotating structure, a certain gap must be maintained between the guide blade 3 and the guide cover 300 after installation, that is, there will be a gap between the first step 31 of the guide blade 3 and the surface of the first boss part 3021. When the liquid flow rate is large, there will be a gap between the second boss part 3022 and the second cover plate. 2, there will be a part of the liquid that is not pushed to rotate by the guide vane 3. After entering the space between the second boss portion 3022 and the second cover plate 2, due to the larger interval between the second boss portion 3022 and the second cover plate 2 and the height of the second step 32 corresponding to the part can also be set larger, the liquid that was originally unable to obtain sufficient acceleration in the area between the second boss portion 3022 and the second cover plate 2 will be directly accelerated by the guide vane 3 after entering the space between the first boss portion 3021 and the second cover plate 2. The second step 32 partially pushes and accelerates the rotation; similarly, when the flow rate of the liquid is further increased, in the space between the second boss portion 3022 and the second cover plate 2, there will still be a small amount of liquid in the gap between the guide vane 3 and the first boss portion 3021 that cannot be pushed and accelerated. Among this part of the liquid, most of it can enter the side of the first cover plate 1 connected to the guide vane 3, and be pushed and rotated by the third step 33 of the guide vane 3, while a small part can overflow through the water outlet gap to the side of the first cover plate 1 facing away from the guide vane 3.

[0072] In summary, the present solution arranges the guide blades 3 in a stepped structure, which is suitable for atomizing liquids with large and small flows, while ensuring a better atomization effect.

[0073] Preferably, the guide vane 3 includes three steps.

[0074] The guide blades 3 are provided with three steps, so as to realize three-stage acceleration of the liquid, achieve more sufficient acceleration of the liquid droplets, and reduce the amount of liquid overflowing from the water outlet gap between the guide cover 300 and the first cover plate 1.

[0075] Optionally, the atomization assembly includes a first atomization protrusion 4 .

[0076] The first atomizing protrusion 4 is arranged between the first cover plate 1 and the second cover plate 2, specifically, on the side of the first cover plate 1 close to the second cover plate 2. After the centrifugal atomizing spray disc 100 of this embodiment is combined with the guide cover 300, a narrow guide space is formed between the guide cover 300 and the second cover plate 2. After the liquid in the guide cover 300 enters the space, it will be pushed to rotate by the high-speed rotating guide blades 3. Most of the liquid will enter the space on the side of the first cover plate 1 close to the second cover plate 2. The atomizing protrusion is correspondingly arranged on this side of the first cover plate 1, which can achieve the impact atomization of the high-speed rotating liquid. When the high-speed rotating liquid is thrown out and hits the first atomizing protrusion 4, the liquid will be more finely dispersed into smaller droplets, thereby achieving a better atomization effect, which helps to cover the target crops more evenly with pesticides or other liquids and improve spraying efficiency. Since the first atomizing protrusion 4 is arranged on the first cover plate 1, it is a part of the entire centrifugal atomizing spray disc 100 and is integrally formed together with the entire centrifugal atomizing spray disc 100 through an injection molding or casting process. This integrated design not only simplifies the processing technology, but also reduces the gaps and connection points between components, thereby reducing the failure rate.

[0077] In one embodiment, the first atomizing protrusion 4 includes at least two atomizing protrusion circles 41 disposed around the avoidance hole 11 , and each of the atomizing protrusion circles 41 includes a plurality of first protrusions 411 disposed at intervals.

[0078] By setting multiple atomizing protrusion circles 41, each circle of atomizing protrusions is provided with multiple first protrusions 411, multi-layer atomization of the liquid can be achieved. When the high-speed rotating liquid hits the atomizing protrusion circles 41 of different levels in turn, the liquid will be refined layer by layer to form smaller droplets, thereby improving the overall atomization effect.

[0079] In one embodiment, in the atomizing protrusion circle 41 farthest from the avoidance hole 11 , a side of the first protrusion 411 close to the central axis of the avoidance hole 11 is configured to be in a sharp tooth shape.

[0080] After the atomization protrusion ring 41 of the inner circle is atomized to form smaller droplets, the outermost circle provides a first protrusion 411 in the shape of sharp teeth. The sharp teeth can be used to further quickly cut and refine the fine liquid, thereby more effectively breaking up the liquid and dispersing it into smaller droplets to obtain a better atomization effect.

[0081] Preferably, except for the atomizing protrusion circle 41 farthest from the avoidance hole 11, the first protrusions 411 of the other atomizing protrusion circles 41 are all arranged in a cylindrical shape. The cylindrical first protrusions 411 can better and more evenly disperse the liquid coming from all directions.

[0082] In one embodiment, a second atomizing protrusion 5 is provided on a side of the first cover plate 1 away from the second cover plate 2 .

[0083] Specifically, after the centrifugal atomizing spray disc 100 is combined with the guide cover 300, in the axial direction, a portion of the inner circle of the first cover plate 1 will overlap with the guide cover 300. At this time, a water outlet gap is formed between the first cover plate 1 and the guide cover 300. When the flow rate of the provided liquid is large, a small amount of liquid will overflow through the water outlet gap to the side of the first cover plate 1 away from the second cover plate 2. At this time, the second atomizing protrusion 5 set on this side can be used to atomize this part of the liquid to avoid the problem of liquid dripping.

[0084] In one embodiment, the second atomizing protrusion 5 includes a plurality of second protrusions 51 distributed around the circumference of the avoidance hole 11 .

[0085] Similarly, the second atomizing protrusions 5 are provided as a plurality of second protrusions 51 distributed around the circumference of the avoidance hole 11, which can achieve cutting and atomizing of droplets flying in all directions, thereby obtaining a uniform atomization effect.

[0086] In one embodiment, a side of the second protrusion 51 close to the avoidance hole 11 is configured to be in a sharp tooth shape.

[0087] Similarly, setting the second protrusion 51 to have a sharp tooth structure pointing to the avoidance hole 11 can quickly cut and refine the fine liquid, achieve more effective crushing of the liquid, and disperse it into finer droplets to obtain a better atomization effect.

[0088] Preferably, the second atomizing protrusion 5 is only provided with one circle of second protrusions 51. Since the flow of liquid overflowing to the side where the second atomizing protrusion 5 is located is small, providing one circle of second protrusions 51 can meet the atomization requirements, thereby achieving the simplification of the structure and reducing the processing consumables of the centrifugal atomizing spray disc 100 itself.

[0089] Preferably, the outer edge of the first cover plate 1 is provided with atomizing serrations 14 , which can further atomize the liquid droplets on the edge and optimize the atomization effect.

[0090] In one embodiment, referring to Figure 8 The first cover plate 1 includes a truncated cone-shaped pressure flow portion 13, and the pressure flow portion 13 gradually tilts from the inside to the outside toward the side where the second cover plate 2 is located.

[0091] Specifically, an inclined pressure flow portion 13 is provided on the first cover plate 1, which can guide the liquid thrown out laterally to be thrown out at an angle, so that the droplets can be thrown out at an angle away from the rotating drive mechanism 200, thereby improving the concentration of the droplets sprayed by the atomized spray and preventing the sprayed droplets from adhering to the rotating drive mechanism 200 in reverse.

[0092] In one embodiment, the first cover plate 1 further includes a connecting portion 12 connected to the inner circle of the pressure flow portion 13 . The connecting portion 12 is arranged parallel to the second cover plate 2 , and the avoidance hole 11 is formed on the inner circumference of the connecting portion 12 .

[0093] A connecting portion 12 parallel to the second cover plate 2 is provided on the inner circle of the pressure flow portion 13. The connecting portion 12 can be close to the surface of the guide cover 300, so that a narrow gap of sufficient width can be formed between the surface of the first cover plate 1 and the guide cover 300. The narrow gap can provide a limit for the liquid thrown out laterally, ensuring that the liquid can be thrown out stably.

[0094] In one embodiment, a connector 6 for connecting to the rotation drive mechanism 200 is provided at the center of the second cover plate 2 .

[0095] Specifically, a connector 6 is provided at the center of the second cover plate 2 for connection with the rotary drive structure, which is effective in facilitating the installation of the centrifugal atomizing spray disc 100 of this embodiment.

[0096] In one embodiment, the centrifugal atomizing spray disc 100 is an integral injection-molded or cast structure.

[0097] The centrifugal atomizing spray disc 100 of this embodiment is manufactured by one-piece injection molding or casting, which has the advantages of simple processing technology, low cost, and easy mass production. It should be noted that the one-piece injection molding or casting of the double-layer spray disc is only possible due to the special structural design of this embodiment.

[0098] On the other hand, refer to Figure 6-Figure 9 , provides a centrifugal atomizer, including a rotary drive mechanism 200, a guide cover 300 and the above-mentioned centrifugal atomizing spray disc 100, the guide cover 300 is used to provide liquid to the centrifugal atomizing spray disc 100, and the rotary drive mechanism 200 is connected to the second cover plate 2 to drive the centrifugal atomizing spray disc 100 to rotate relative to the guide cover 300.

[0099] Similarly, the centrifugal atomizer of this embodiment has the advantages of being able to meet the atomization requirements of large-flow liquids, having a simple structure, being easy to process, being low in cost, and being light in weight.

[0100] In one embodiment, the rotary drive mechanism 200 , the guide cover 300 and the centrifugal atomizing spray disc 100 are arranged sequentially from top to bottom, and the output shaft of the rotary drive mechanism 200 passes through the guide cover 300 and is connected to the centrifugal atomizing spray disc 100 .

[0101] The centrifugal atomizing spray disc 100 of this embodiment is located at the bottom of the entire centrifugal atomizer, so there will be no problem of sprayed droplets adhering to the structure below the centrifugal atomizing spray disc 100. At the same time, the entire structure has the advantages of compactness and good reliability.

[0102] In other embodiments, the guide cover 300 is located above the centrifugal atomizing spray disc 100 , and the rotary drive mechanism 200 is located below the centrifugal atomizing spray disc 100 and connected to the second cover plate 2 .

[0103] In one embodiment, referring to Figure 8 The guide cover 300 includes a guide cover body 301 and a water inlet boss 302 corresponding to the avoidance hole 11, and a water inlet through-hole 303 is provided at the center of the water inlet boss 302; the water inlet boss 302 is embedded in the centrifugal atomizing spray disc 100 through the avoidance hole 11 to be close to the second cover plate 2, and a diffusion cavity is formed between the water inlet boss 302 and the second cover plate 2.

[0104] The guide cover 300 is provided with a water inlet boss 302 that extends into the avoidance hole 11, forming a diffusion chamber between the water inlet boss 302 and the second cover plate 2. This structure utilizes the lower surface of the water inlet boss 302 in conjunction with the second cover plate 2 to pressurize the liquid injected into the centrifugal atomizing spray disc 100 and drive its rotation. The water inlet boss 302 extending into the avoidance hole 11 reduces the distance from the second cover plate 2, thereby reducing the height of the diffusion chamber, thereby maintaining water pressure and achieving a higher rotational speed for the liquid.

[0105] In one embodiment, a side of the first cover plate 1 away from the second cover plate 2 is close to the guide cover body 301 , and a water outlet gap is formed between the first cover plate 1 and the guide cover body 301 .

[0106] A water outlet gap is formed between the first cover plate 1 and the guide cover body 301. When the liquid flow rate is large, a small amount of water can overflow through the water outlet gap and be thrown out laterally along the upper surface of the first cover plate 1 to form atomization. Therefore, this structure is conducive to improving the ability of the centrifugal atomizer to handle large flow liquids.

[0107] In one embodiment, the water inlet boss 302 includes a first boss portion 3021 and a second boss portion 3022, the first boss portion 3021 protrudes toward the side where the second cover plate 2 is located relative to the guide cover 300, the second boss portion 3022 is arranged on the first boss portion 3021 and protrudes toward the side where the second cover plate 2 is located relative to the first boss portion 3021, and the water inlet through hole 303 passes through the first boss portion 3021 and the second boss portion 3022.

[0108] From the above analysis, it can be seen that the water inlet boss 302 of the guide cover 300 of this embodiment is configured as a step-like structure, which is suitable for atomizing liquids with large and small flows, while ensuring a better atomization effect.

[0109] On the other hand, a drone is provided, comprising the above-mentioned centrifugal atomizer.

[0110] Specifically, the drone includes a main drone body and an atomization system mounted on the drone body. The atomization system includes a medicine tank, a pumping device, and a centrifugal atomizer. The pumping device is connected to the medicine tank and the centrifugal atomizer via a pipeline. The pumped device pumps the liquid medicine from the medicine tank, which is then atomized by the centrifugal atomizer and sprayed onto crops. The drone of this embodiment can automatically spray pesticides in plant protection operations, freeing up manpower and improving work efficiency.

[0111] Based on the centrifugal atomizer of this embodiment, the drone of this embodiment has the advantages of low cost and the ability to meet large-flow atomization requirements.

[0112] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0113] 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.

[0114] 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.

[0115] The technical principles of the present application have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the present application and are not to be construed in any way as limiting the scope of protection of the present application. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present application without inventive effort, and such implementations will fall within the scope of protection of the present application.

Claims

1. A centrifugal atomizing spray disc (100), characterized in that: include: A first cover plate (1) is provided with a avoidance hole (11) at the center; a second cover plate (2) connected to the first cover plate (1) and spaced apart from the first cover plate (1); the size of the second cover plate (2) is smaller than the avoidance hole (11), and the second cover plate (2) is aligned with the avoidance hole (11), so that the first cover plate (1) and the second cover plate (2) do not overlap in the axial direction of the avoidance hole (11); The centrifugal atomizing spray disc (100) is an integrated structure.

2. The centrifugal atomizing spray disc (100) according to claim 1, characterized in that: The first cover plate (1) is an upper cover plate arranged close to the guide cover (300), and the second cover plate (2) is a lower cover plate arranged on a side of the first cover plate (1) away from the guide cover (300).

3. The centrifugal atomizing spray disc (100) according to claim 1, characterized in that: It also comprises an atomizing assembly, which is arranged between the first cover plate (1) and the second cover plate (2), and the first cover plate (1) is connected to the second cover plate (2) via the atomizing assembly.

4. The centrifugal atomizing spray disc (100) according to claim 3, characterized in that: The atomizing assembly comprises a plurality of guide blades (3), the plurality of guide blades (3) being distributed circumferentially around the central axis of the avoidance hole (11), and the two sides of the guide blades (3) being respectively connected to the first cover plate (1) and the second cover plate (2).

5. The centrifugal atomizing spray disc (100) according to claim 4, characterized in that: The guide vane (3) comprises a first connection side connected to the first cover plate (1) and a second connection side connected to the second cover plate (2); the guide vane (3) is arranged in a stepped shape comprising at least two steps, and the steps are gradually raised from the first connection side toward the second connection side.

6. The centrifugal atomizing spray disc (100) according to claim 5, characterized in that: The guide vane (3) comprises three steps.

7. The centrifugal atomizing spray disc (100) according to claim 3, characterized in that: The atomizing assembly comprises a first atomizing protrusion (4).

8. The centrifugal atomizing spray disc (100) according to claim 7, characterized in that: The first atomizing protrusion (4) comprises at least two atomizing protrusion rings (41) arranged around the avoidance hole (11), and each of the atomizing protrusion rings (41) comprises a plurality of first protrusions (411) arranged at intervals.

9. The centrifugal atomizing spray disc (100) according to claim 8, characterized in that: In the atomizing protrusion circle (41) farthest from the avoidance hole (11), the first protrusion (411) is configured in a pointed tooth shape on a side close to the central axis of the avoidance hole (11).

10. The centrifugal atomizing spray disc (100) according to claim 1, characterized in that: A second atomizing protrusion (5) is provided on a side of the first cover plate (1) away from the second cover plate (2).

11. The centrifugal atomizing spray disc (100) according to claim 10, characterized in that: The second atomizing protrusion (5) comprises a plurality of second protrusions (51) distributed around the circumference of the avoidance hole (11).

12. The centrifugal atomizing spray disc (100) according to claim 11, characterized in that: The second protrusion (51) is configured in a pointed tooth shape on one side close to the central axis of the avoidance hole (11).

13. The centrifugal atomizing spray disc (100) according to claim 1, characterized in that: The first cover plate (1) comprises a truncated cone-shaped pressure flow portion (13), and the pressure flow portion (13) gradually tilts from the inside to the outside toward the side where the second cover plate (2) is located.

14. The centrifugal atomizing spray disc (100) according to claim 13, characterized in that: The first cover plate (1) further comprises a connecting portion (12) connected to the inner circle of the pressure flow portion (13); the connecting portion (12) is arranged parallel to the second cover plate (2); and the avoidance hole (11) is formed on the inner circumference of the connecting portion (12).

15. The centrifugal atomizing spray disc (100) according to claim 1, characterized in that: A connecting head (6) for connecting to a rotary drive mechanism (200) is provided at the center of the second cover plate (2).

16. The centrifugal atomizing spray disc (100) according to claim 1, characterized in that: The centrifugal atomizing spray disc (100) is an integral injection-molded or cast structure.

17. A centrifugal atomizer, characterized in that: The invention comprises a rotary drive mechanism (200), a flow guide cover (300), and a centrifugal atomizing spray disc (100) as described in any one of claims 1 to 16, wherein the flow guide cover (300) is used to provide liquid to the centrifugal atomizing spray disc (100), and the rotary drive mechanism (200) is connected to the second cover plate (2) to drive the centrifugal atomizing spray disc (100) to rotate relative to the flow guide cover (300).

18. The centrifugal atomizer according to claim 17, characterized in that The rotary drive mechanism (200), the guide cover (300) and the centrifugal atomizing spray disc (100) are arranged sequentially from top to bottom, and the output shaft of the rotary drive mechanism (200) passes through the guide cover (300) and is connected to the centrifugal atomizing spray disc (100).

19. The centrifugal atomizer according to claim 17, characterized in that The guide cover (300) comprises a guide cover body (301) and a water inlet boss (302) corresponding to the avoidance hole (11); a water inlet through-hole (303) is provided at the center of the water inlet boss (302); the water inlet boss (302) is embedded in the centrifugal atomizing spray disc (100) through the avoidance hole (11) to be close to the second cover plate (2); a diffusion cavity is formed between the water inlet boss (302) and the second cover plate (2).

20. The centrifugal atomizer according to claim 19, characterized in that The side of the first cover plate (1) away from the second cover plate (2) is close to the guide cover body (301), and a water outlet gap is formed between the first cover plate (1) and the guide cover body (301).

21. The centrifugal atomizer according to claim 20, characterized in that The water inlet boss (302) comprises a first boss portion (3021) and a second boss portion (3022), wherein the first boss portion (3021) protrudes relative to the guide cover (300) toward the side where the second cover plate (2) is located, and the second boss portion (3022) is arranged on the first boss portion (3021) and protrudes relative to the first boss portion (3021) toward the side where the second cover plate (2) is located, and the water inlet through hole (303) passes through the first boss portion (3021) and the second boss portion (3022).

22. A drone, characterized in that: The invention comprises the centrifugal atomizer according to any one of claims 17 to 21.

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