Centrifugal spray discs, atomization devices and unmanned equipment

Abstract

The embodiments of the present invention provide a centrifugal spray disc, an atomization device and unmanned equipment, which relate to the field of atomization technology. The centrifugal spray disc includes a disc-shaped chassis and a plurality of teeth, the chassis has a central portion and an upper surface, and a blank area and a cutting area are formed on the upper surface; the plurality of teeth are located in the cutting area, the plurality of teeth are convexly arranged on the upper surface, and the plurality of teeth are arranged along the circumference of the chassis, and the teeth are used to cut the liquid centrifugally flowing in from the blank area. The centrifugal spray disc can operate in a low speed mode and still achieve effective cutting and atomization of the liquid to be atomized.

Description

Technical Field

[0001] The present invention relates to the field of atomization technology, and in particular to a centrifugal spray disc, an atomization device and unmanned equipment. Background Art

[0002] The centrifugal spray disc of the atomization device currently on the market can only achieve a better atomization effect of the droplets at a higher rotation speed, but at a lower rotation speed, the atomization effect is often not ideal.

[0003] This will restrict the use of the product, and because it can only be used in high-speed mode, the service life of the drive motor of the atomization device is greatly shortened. Summary of the invention

[0004] The present invention provides a centrifugal spray disc, an atomizing device and unmanned equipment. The centrifugal spray disc can achieve effective cutting and atomizing of a liquid to be atomized when operating in a low speed mode, thereby greatly improving the service life of a driving motor.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the present invention provides a centrifugal spray disc, which includes:

[0007] A disc-shaped chassis, the chassis having a central portion and an upper surface, the upper surface being formed with a blank area surrounding the central portion and a cutting area surrounding and directly adjacent to the blank area; the blank area is used to receive liquid, and is used to allow the liquid to flow into the cutting area when the chassis rotates;

[0008] A plurality of teeth are located in the cutting area, the plurality of teeth are protruding from the upper surface, the plurality of teeth are arranged along the circumference of the chassis, the teeth are used to cut the liquid centrifugally flowing in from the blank area, and an atomization flow channel is formed between two adjacent teeth for the liquid to flow after cutting.

[0009] Optionally, the tooth height of the tooth is b, and the tooth spacing between two adjacent teeth is c;

[0010] The tooth height of at least some of the teeth satisfies: 0 mm < b ≤ 5 mm;

[0011] The tooth spacing corresponding to at least some of the teeth satisfies: 1mm≤c≤5mm.

[0012] Optionally, the tooth height of at least some of the teeth satisfies: 1.5 mm < b ≤ 3 mm; and / or,

[0013] The tooth spacing corresponding to at least some of the teeth satisfies: 1.5mm≤c≤2mm.

[0014] Optionally, the tooth comprises a tooth body and a tooth tip portion connected in sequence, and the tooth tip portion is close to the central portion relative to the tooth body.

[0015] Optionally, the upper surface is a plane, the tooth body is a trapezoidal body, the bottom surface of the tooth body is connected to the upper surface, the left side surface of the tooth body is parallel to the right side surface, the front side surface of the tooth body is parallel to the rear side surface, the left side surface, the right side surface, the front side surface and the rear side surface of the tooth body are all perpendicular to the bottom surface, and the top surface of the tooth body is inclined to the bottom surface;

[0016] The tooth tip portion is a triangular prism, the bottom surface of the tooth tip portion is connected to the upper surface, the top surface of the tooth tip portion is parallel to the bottom surface of the tooth tip, the top surface of the tooth tip portion is connected to the top surface of the tooth body, one of the tooth tip side surfaces of the tooth tip portion is in contact with the right side surface of the tooth body, and the other two tooth tip side surfaces of the tooth tip portion are respectively connected to the front side surface and the rear side surface of the tooth body;

[0017] The distance between the top surface of the tooth tip and the bottom surface of the tooth tip of the tooth tip portion defines the tooth height of the tooth;

[0018] The minimum distance between two tooth tip side surfaces corresponding to the tooth tip portions of two adjacent teeth defines the tooth spacing corresponding to the teeth.

[0019] Optionally, the tooth body, the tooth tip and the chassis are integrally formed.

[0020] Optionally, in the same chassis, all the teeth have the same tooth height; and / or,

[0021] The tooth spacings corresponding to all the teeth are the same.

[0022] Optionally, the plurality of teeth are distributed in at least two gear rings, and each of the gear rings includes a plurality of the teeth.

[0023] Optionally, all of the gear rings are concentrically arranged.

[0024] Optionally, each of the gear rings includes a plurality of the atomizing flow channels, and the atomizing flow channels in two adjacent gear rings are correspondingly connected along the radial direction of the chassis.

[0025] Optionally, in the gear ring located at the outermost circle, one end of two adjacent teeth close to the circumference of the chassis and the circumference of the chassis jointly define the outlet of the atomization flow channel.

[0026] Optionally, a length of the tooth along an extension direction of the tooth is d, and 20 mm ≤ d ≤ 30 mm.

[0027] Optionally, the diameter of the chassis is e, 300mm≤e≤400mm.

[0028] Optionally, the blank area is in a circular shape, and the width corresponding to the blank area is f1;

[0029] The cutting area is in a circular shape, and the width of the cutting area is f2;

[0030] Among them, f1 / f2=k, 10≤k≤30.

[0031] Optionally, a serration structure is provided on the periphery of the chassis.

[0032] Optionally, the chassis further comprises a lower surface, and the centrifugal spray disc further comprises a fixing column and at least one reinforcing rib, the fixing column is protruding from the lower surface, and the reinforcing rib simultaneously connects the lower surface and the fixing column.

[0033] Optionally, the central portion is provided with a mounting hole, the mounting hole is used to mount an output shaft of the driving motor, and the mounting hole extends to the interior of the fixing column.

[0034] An embodiment of the present invention further provides a centrifugal spray disc, which comprises:

[0035] A disc-shaped chassis, the chassis having a central portion and an upper surface, the upper surface being formed with a blank area surrounding the central portion and a cutting area surrounding and directly adjacent to the blank area; the blank area is used to receive liquid, and is used to allow the liquid to flow into the cutting area when the chassis rotates;

[0036] A plurality of teeth located in the cutting area, the plurality of teeth are convexly arranged on the upper surface, the plurality of teeth are arranged along the circumference of the bottom plate, the teeth are used to cut the liquid centrifugally flowing in from the blank area, and an atomization flow channel for the cut liquid to flow is formed between two adjacent teeth;

[0037] The tooth includes a tooth body connected to each other and a tooth tip portion, the tooth tip portion being closer to the central portion relative to the tooth body.

[0038] Optionally, the tooth body is a trapezoid, and the tooth tip is a triangular prism.

[0039] Optionally, the upper surface is a plane, the bottom surface of the tooth body is connected to the upper surface, the left side surface of the tooth body is parallel to the right side surface, the front side surface of the tooth body is parallel to the rear side surface, the left side surface, the right side surface, the front side surface and the rear side surface of the tooth body are perpendicular to the bottom surface, and the top surface of the tooth body is inclined to the bottom surface;

[0040] The bottom surface of the tooth tip of the tooth tip portion is connected to the upper surface, the top surface of the tooth tip of the tooth tip portion is parallel to the bottom surface of the tooth tip, the top surface of the tooth tip of the tooth tip portion is connected to the top surface of the tooth body, one of the side surfaces of the tooth tip of the tooth tip portion is fitted with the right side surface of the tooth body, and the remaining two side surfaces of the tooth tip of the tooth tip portion are respectively connected to the front side surface and the rear side surface of the tooth body.

[0041] Optionally, the chassis further comprises a lower surface, and the centrifugal spray disc further comprises a fixing column and at least one reinforcing rib, the fixing column is protruding from the lower surface, and the reinforcing rib simultaneously connects the lower surface and the fixing column.

[0042] Optionally, the central portion is provided with a mounting hole, the mounting hole is used to mount an output shaft of the driving motor, and the mounting hole extends to the interior of the fixing column.

[0043] An embodiment of the present invention further provides an atomization device, which includes the above-mentioned centrifugal spray disc.

[0044] An embodiment of the present invention further provides an unmanned device, which includes the above-mentioned atomization device.

[0045] The beneficial effects of the centrifugal spray disc, atomization device and unmanned equipment of the embodiments of the present invention include, for example:

[0046] The center of the chassis is connected to the output shaft of the driving motor. Driven by the driving motor, the chassis rotates. After the liquid to be atomized located above the chassis is input onto the chassis, it first enters the blank area on the chassis. Under the centrifugal effect, the liquid directly flows into the cutting area. The multiple teeth in the cutting area simultaneously cut the liquid flowing into the cutting area to atomize it. In this way, the centrifugal spray disc can still effectively cut and atomize the liquid to be atomized when operating in a low speed mode, thus greatly improving the service life of the driving motor.

[0047] The atomizing device comprises a centrifugal spray disc, which has all the functions of the centrifugal spray disc.

[0048] The unmanned equipment includes an atomizing device, which has all the functions of the atomizing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A schematic diagram of the structure of an atomization device provided in an embodiment of the present invention;

[0051] Figure 2 A schematic structural diagram of a first centrifugal spray disc provided by an embodiment of the present invention from a first viewing angle;

[0052] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0053] Figure 4 A schematic structural diagram of a first centrifugal spray disc provided by an embodiment of the present invention from a second viewing angle;

[0054] Figure 5 for Figure 4 Schematic diagram of the structure of the middle tooth;

[0055] Figure 6 A schematic structural diagram of a second centrifugal spray disc provided by an embodiment of the present invention from a first viewing angle;

[0056] Figure 7 A schematic structural diagram of a second centrifugal spray disc provided by an embodiment of the present invention from a second viewing angle;

[0057] Figure 8 A schematic structural diagram of a second centrifugal spray disc provided in an embodiment of the present invention from a third viewing angle.

[0058] Icons: 1000-atomizing device; 100-centrifugal spray disc; 101-first preset circle; 102-second preset circle; 103-third preset circle; 104-fourth preset circle; 10-chassis; 11-center; 111-mounting hole; 12-upper surface; 13-blank area; 14-cutting area; 15-periphery; 16-serrated structure; 17-lower surface; 18-fixing column; 19-reinforcement rib; 20-tooth; 21-tooth body; 211-top surface; 212-bottom surface; 213-left side surface; 214-right side surface; 215-front side surface; 216-rear side surface; 22-tooth tip; 221-tooth tip top surface; 222-tooth tip bottom surface; 223-tooth tip side surface; 30-atomizing channel; 31-inlet; 32-outlet; 200-drive motor; 300-liquid inlet pipe. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0060] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0062] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0063] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0064] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0065] Please refer to Figure 1 , this embodiment provides an atomizing device 1000, and correspondingly, provides an unmanned device (not shown). The unmanned device includes an unmanned device body (not shown) and the atomizing device 1000, and the atomizing device 1000 is installed on the unmanned device body. The atomizing device 1000 can atomize the liquid, and the atomizing device 1000 can perform a spraying operation during the operation of the unmanned device body. The unmanned device body can be a drone, an unmanned vehicle, an unmanned ship, etc.

[0066] Specifically, combined Figure 1 The atomizing device 1000 includes a driving motor 200, a liquid inlet pipe 300 and a centrifugal spray disc 100; the output shaft of the driving motor 200 is connected to the centrifugal spray disc 100 and is used to drive the centrifugal spray disc 100 to rotate, and the liquid inlet pipe 300 is connected to the housing of the driving motor 200 and is used to feed liquid into the centrifugal spray disc 100. The housing of the driving motor 200 is mounted on the unmanned equipment body. When the atomizing device 1000 is working, the liquid to be atomized flows into the centrifugal spray disc 100 through the liquid inlet pipe 300, and the centrifugal spray disc 100 rotates around its own axis driven by the driving motor 200, and the liquid flowing into the centrifugal spray disc 100 is centrifugally sprayed out.

[0067] In this embodiment, the traditional centrifugal spray disc is improved so that it can still achieve a more uniform droplet atomization effect when running at a low speed (for example, 2000 rpm), so that the product is more widely used, and since a better atomization effect can be achieved at a low speed, the service life of the drive motor 200 can be greatly improved. At the same time, it should be noted that when the liquid inlet flow rate of the liquid inlet pipe 300 is large, the overall atomization effect is more obvious. The centrifugal spray disc 100 provided in this embodiment will be introduced in detail below.

[0068] Please refer to Figure 2-Figure 5 , Figure 2 The first centrifugal spray disc 100 provided in this embodiment is shown, which includes a disc-shaped bottom plate 10 and a plurality of teeth 20 .

[0069] Specifically, the chassis 10 has a central portion 11 and an upper surface 12, and the upper surface 12 is formed with a blank area 13 distributed around the central portion 11 and a cutting area 14 distributed around the blank area 13 and directly adjacent to the blank area 13. The blank area 13 is used to receive liquid, and to allow the liquid to flow into the cutting area 14 when the chassis 10 rotates. It should be noted that the central portion 11 can be provided with a mounting hole 111 to mount the output shaft of the drive motor 200. The central portion 11 is located at the center of the chassis 10, and it can be understood that the center of the circle of the chassis 10 is located on the central portion 11. Partitions are made on the upper surface 12, and the portion close to the central portion 11 of the chassis 10 is the blank area 13, and the portion close to the periphery 15 of the chassis 10 is the cutting area 14, and the blank area 13 is directly adjacent to the cutting area 14. In other words, the outer periphery of the blank area 13 is the inner periphery of the cutting area 14. Figure 2 As shown in the relative position diagram, the area between the outer periphery of the center portion 11 and the first preset circle 101 (shown by the dotted line) is the blank area 13, and the area between the first preset circle 101 and the second preset circle 102 (shown by the dotted line) is the cutting area 14.

[0070] A plurality of teeth 20 are located in the cutting area 14, a plurality of teeth 20 are convexly arranged on the upper surface 12, and a plurality of teeth 20 are arranged along the circumference of the chassis 10. The teeth 20 are used to cut the liquid centrifugally flowing in from the blank area 13, and an atomization flow channel 30 is formed between two adjacent teeth 20 for the liquid to flow after cutting. It should be noted that the ends of all teeth 20 close to the center 11 are located on the circumference of the first preset circle 101, and the ends of all teeth 20 away from the center 11 are located on the circumference of the second preset circle 102. The blank area 13 can be understood as having basically no structure above the upper surface 12 at this position to block the flow of the liquid, and basically no structure to guide the flow of the liquid. After the liquid in the liquid inlet pipe 300 is output, it directly falls to the vicinity of the outer periphery of the center 11. Moreover, it basically flows toward the periphery 15 of the chassis 10 in a freely divergent state (radially flowing out in all directions with the center portion 11 as the center). In other words, after the liquid falls from the periphery of the center portion 11, it flows directly into the cutting area 14 in a freely divergent state under the action of centrifugation and is directly cut by the teeth 20.

[0071] In this embodiment, combined with Figure 2 and Figure 4 The chassis 10 also has a lower surface 17, and the centrifugal spray disc 100 also includes a fixed column 18 and at least one reinforcing rib 19. The fixed column 18 is protruding from the lower surface 17, and the reinforcing rib 19 connects the lower surface 17 and the fixed column 18 at the same time. The reinforcing rib 19 can increase the structural strength of the entire structure and extend the service life. At the same time, during specific implementation, the number of reinforcing ribs 19 can be one, two, three, four, etc. Generally, when the number of reinforcing ribs 19 is two, they can be symmetrically distributed on both sides of the fixed column 18 in an "I" shape. When the number of reinforcing ribs 19 is four, they can be evenly distributed around the fixed column 18 in a "X" shape. In one implementation, the chassis 10, the fixed column 18 and the reinforcing ribs 19 are integrally formed.

[0072] In this embodiment, combined with Figure 2 and Figure 4 The mounting hole 111 provided in the center portion 11 is used to mount the output shaft of the driving motor 200, and the mounting hole 111 extends to the inside of the fixing column 18. In this way, the mounting depth of the output shaft of the driving motor 200 is increased, and the mounting stability is further improved. At the same time, due to the presence of the reinforcing rib 19, the overall running stability can be greatly improved.

[0073] The extending direction of the teeth 20 is set at an angle a with the radial direction of the chassis 10, the tooth height of the teeth 20 is b, and the tooth spacing between two adjacent teeth 20 is c.

[0074] The included angle corresponding to at least some of the teeth 20 satisfies: 0°≤a≤5°. For example, in a specific implementation, a can be selected from 0°, 1°, 2°, 3°, 4°, 5°, etc.

[0075] The tooth height of at least some teeth 20 satisfies: 0 mm < b ≤ 5 mm. For example, in a specific implementation, b can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc.

[0076] The tooth spacing corresponding to at least some of the teeth 20 satisfies: 1 mm ≤ c ≤ 5 mm. For example, in a specific implementation, c can be selected from 1 mm, 2 mm, 3 mm, 4 mm, and 5 mm.

[0077] It should be noted that when the shape of the tooth 20 is a rectangle, its extension direction is its length direction, when the shape of the tooth 20 is an isosceles triangle, its extension direction is the angle bisector direction of its vertex, and so on. When the angle a=0°, it can be understood that the tooth 20 extends along the radial direction of the chassis 10, and when the angle a≠0°, it can be understood that the tooth 20 is inclined along the radial direction of the chassis 10, for example, Figure 2 From the perspective of the centrifugal spray disc 100, the tooth 20 is equivalent to rotating counterclockwise or clockwise by a certain angle on the basis of the radial extension along the chassis 10 with its center of mass as the center of the circle, so that the tooth 20 is finally inclined relative to the radial direction of the chassis 10. For example, taking clockwise as positive and counterclockwise as negative, if the tooth 20 is equivalent to rotating clockwise by a certain angle, then the angle a is a positive value, and if the tooth 20 is equivalent to rotating counterclockwise by a certain angle, then the angle a is a negative value. The angle a mentioned above refers to an absolute value. In other words, the angle a can also be understood to satisfy: -5°≤a≤5°. In this way, when it is determined that the drive motor 200 drives the centrifugal spray disc 100 to rotate clockwise or counterclockwise, the corresponding centrifugal spray disc 100 can be selected. In this embodiment, combined with Figure 2 It can be seen from the local enlarged view in the upper left corner that three teeth 20 are shown in the local enlarged view, among which the middle tooth 20 is equivalent to being rotated counterclockwise by an angle a on the basis of the radial extension along the chassis 10 with its center of mass as the center of the circle, so that the tooth 20 is finally inclined relative to the radial direction of the chassis 10.

[0078] It should be noted that the tooth height b can be understood as the height of the tooth 20 protruding relative to the upper surface 12, or the distance between the end of the tooth 20 away from the upper surface 12 and the upper surface 12. The tooth spacing c can be understood as the minimum distance between two adjacent teeth 20, or the width of the atomization flow channel 30.

[0079] The central part 11 of the chassis 10 is connected to the output shaft of the driving motor 200. Under the drive of the driving motor 200, the chassis 10 rotates. After the liquid to be atomized located above the chassis 10 is input onto the chassis 10, it first enters the blank area 13 on the chassis 10. Under the centrifugal effect, the liquid directly flows into the cutting area 14. The multiple teeth 20 in the cutting area 14 simultaneously cut the liquid flowing into the cutting area 14 to atomize it. Since the parameters of the tooth 20 are reasonably designed, for example, the extension direction of the tooth 20 is set at an angle a with the radial direction of the chassis 10, and the angle corresponding to at least some of the teeth 20 satisfies: 0°≤a≤5°. The tooth height of at least some of the teeth 20 satisfies: 0mm<b≤5mm. The tooth spacing corresponding to at least some of the teeth 20 satisfies: 1mm≤c≤5mm. In this way, the centrifugal spray disc 100 can still achieve effective cutting and atomization of the liquid to be atomized when operating in the low speed mode, thus greatly improving the service life of the driving motor 200.

[0080] Optionally, the included angles corresponding to at least some of the teeth 20 satisfy: 1.5°≤a≤2.5°. And / or,

[0081] The tooth height of at least some teeth 20 satisfies: 1.5 mm < b ≤ 3 mm. And / or,

[0082] The tooth spacing corresponding to at least some of the teeth 20 satisfies: 1.5 mm ≤ c ≤ 2 mm.

[0083] For example, in a specific implementation, the angle a can be selected as 1.5°, 1.8°, 2.3°, 2.5°, etc. The tooth height b can be selected as 1.5 mm, 1.8 mm, 2.3 mm, 2.5 mm, 2.8 mm, 3 mm, etc. The tooth spacing c can be selected as 1.5 mm, 1.8 mm, 2 mm, etc.

[0084] Optionally, in the same chassis 10, the included angle corresponding to some teeth 20 satisfies: 2°≤a≤3°. The included angle corresponding to some teeth 20 satisfies: 1°≤a<2°. The included angle corresponding to some teeth 20 satisfies: 0°≤a<1°.

[0085] In other words, different teeth 20 on the same chassis 10 have different inclination angles relative to the radial direction of the chassis 10, and some teeth 20 have larger inclination angles relative to the radial direction of the chassis 10, while some teeth 20 have smaller inclination angles relative to the radial direction of the chassis 10. For example, in the same chassis 10, some teeth 20 correspond to an angle a of 0°, some teeth 20 correspond to an angle a of 0.5°, some teeth 20 correspond to an angle a of 1°, some teeth 20 correspond to an angle a of 1.5°, some teeth 20 correspond to an angle a of 2°, some teeth 20 correspond to an angle a of 2.5°, and some teeth 20 correspond to an angle a of 3°. It should be noted that, optionally, the number of teeth 20 corresponding to a certain angle a on the chassis 10 is only one, or the number of teeth 20 corresponding to a certain angle a on the chassis 10 is multiple.

[0086] Optionally, the included angle corresponding to 50% of the teeth 20 in the plurality of teeth 20 satisfies: a=2.5°. The included angle corresponding to 30% of the teeth 20 in the plurality of teeth 20 satisfies: a=1.5°. The included angle corresponding to 20% of the teeth 20 in the plurality of teeth 20 satisfies: a=0°.

[0087] It is understandable that on the same chassis 10, the angle a corresponding to half of the teeth 20 is 2.5°, the angle a corresponding to the remaining part of the teeth 20 is 1.5°, and the angle of the remaining part is 0°. In other words, there are only three teeth 20 with different tilt states on the chassis 10. It should be noted that the distribution of the teeth 20 with three different tilt states can be continuous. For example, when the number of teeth 20 is 100, in the circumferential direction of the chassis 10, the angle a corresponding to 50 consecutive teeth 20 is 2.5°, the angle a corresponding to 30 consecutive teeth 20 is 1.5°, and the angle a corresponding to 20 consecutive teeth 20 is 0°. Of course, it can also be messy, that is, the distribution of the teeth 20 is messy and irregular. The examples here are only examples. During the specific implementation, the distribution of the teeth 20 is set according to actual needs.

[0088] Combination Figure 2 , Figure 3 and Figure 5 In this embodiment, the tooth 20 includes a tooth body 21 and a tooth tip 22 connected in sequence along the extension direction, and the tooth tip 22 is closer to the center portion 11 relative to the tooth body 21. The direction of the line connecting the center of mass of the tooth 20 and the end point of the tooth tip 22 away from the tooth body 21 is the extension direction of the tooth 20. The center of the chassis 10 is located at the center portion 11, and the direction of the line connecting the center of mass of the tooth 20 and the center of the chassis 10 is the radial direction of the chassis 10.

[0089] Combination Figure 3It can be understood that in two adjacent teeth 20, the tooth tips 22 of the two teeth 20 define an inlet 31 of the atomizing flow channel 30, and the ends of the tooth bodies 21 of the two teeth 20 away from the tooth tips 22 define an outlet 32 ​​of the atomizing flow channel 30. The tooth tips 22 of the teeth 20 cut the liquid, and the cut liquid droplets enter the atomizing flow channel 30 and are discharged through the outlet 32 ​​thereof.

[0090] Figure 3 The direction indicated by the arrow is the flow direction of the liquid.

[0091] Combination Figure 3 , the periphery 15 of the bottom plate 10 is provided with a sawtooth structure 16. Moreover, the tooth body 21 of the tooth 20 is arranged adjacent to the periphery 15 of the bottom plate 10, so that the outlet 32 ​​of the atomizing flow channel 30 is defined by the tooth bodies 21 of two adjacent teeth 20 and the periphery 15 of the bottom plate 10, and the liquid sprayed from the outlet 32 ​​of the atomizing flow channel 30 can be cut by the sawtooth structure 16, further improving the atomization effect of the droplets.

[0092] In one embodiment, the sawtooth structure 16 includes a plurality of sawteeth protruding from the periphery 15 of the chassis 10 along the radial direction of the chassis 10. The plurality of sawteeth are evenly distributed around the circumference of the chassis 10. The sawteeth may be formed by providing a groove penetrating the thickness direction (axial direction) of the chassis 10 on the periphery 15 of the chassis 10, so that the sawteeth are formed, that is, the groove is defined between two adjacent sawteeth.

[0093] Combination Figure 5 In this embodiment, the upper surface 12 is a plane, the tooth body 21 is a trapezoid, the bottom surface 212 of the tooth body 21 is connected to the upper surface 12, the left side 213 of the tooth body 21 is parallel to the right side 214, the front side 215 of the tooth body 21 is parallel to the rear side 216, the left side 213, the right side 214, the front side 215 and the rear side 216 of the tooth body 21 are all perpendicular to the bottom surface 212, and the top surface 211 of the tooth body 21 is inclined to the bottom surface 212.

[0094] The tooth tip portion 22 is a triangular prism, the tooth tip bottom surface 222 of the tooth tip portion 22 is connected to the upper surface 12, the tooth tip top surface 221 of the tooth tip portion 22 is parallel to the tooth tip bottom surface 222, the tooth tip top surface 221 of the tooth tip portion 22 is connected to the top surface 211 of the tooth body 21, one of the tooth tip side surfaces 223 of the tooth tip portion 22 is in contact with the right side surface 214 of the tooth body 21, and the other two tooth tip side surfaces 223 of the tooth tip portion 22 are respectively connected to the front side surface 215 and the rear side surface 216 of the tooth body 21.

[0095] The projection of the connection point of the other two tooth tip side surfaces 223 of the tooth tip portion 22 on the upper surface 12 is the first point, the projection of the center of mass of the tooth 20 on the upper surface 12 is the second point, and the direction of the line connecting the first point and the second point defines the extension direction of the tooth 20.

[0096] The distance between the tooth tip top surface 221 and the tooth tip bottom surface 222 of the tooth tip portion 22 defines the tooth height of the tooth 20 .

[0097] The minimum distance between the two tooth tip side surfaces 223 corresponding to the tooth tip portions 22 of two adjacent teeth 20 defines the tooth spacing corresponding to the teeth 20 .

[0098] In combination with the above, it can be understood that the structure of the tooth 20 can be roughly a combination of a trapezoid and a triangular prism. Figure 3 In the figure, the projection of the tooth body 21 on the upper surface 12 is approximately a rectangle, and the projection of the tooth tip 22 on the upper surface 12 is approximately an isosceles triangle.

[0099] Combination Figure 3 In the embodiment, the sharpness of the tooth tip portion 22 can be defined by an angle m, which can be understood as the angle between two tooth tip side surfaces 223 of the spike portion. The angle m satisfies: 30°≤m≤60°, for example, 30°, 45°, 55°, 60°.

[0100] Optionally, the tooth body 21, the tooth tip 22 and the chassis 10 are integrally formed. For example, the tooth 20 and the chassis 10 can be integrally formed by a mold. In other embodiments, the tooth 20 itself can also be an integrally formed part, which is fixed to the chassis 10 by welding.

[0101] Optionally, in the same chassis 10, all teeth 20 have the same corresponding angle, and / or all teeth 20 have the same tooth height, and / or all teeth 20 have the same tooth spacing.

[0102] In other words, when all teeth 20 in the same chassis 10 have the same included angle a, the same tooth height b, and the same tooth spacing c, the structural parameters of all teeth 20 on the chassis 10 are the same, so that the distribution of all teeth 20 on the chassis 10 is more regular.

[0103] Combination Figure 3 In this embodiment, the length of the tooth 20 along the extension direction of the tooth 20 is d, 20 mm ≤ d ≤ 30 mm. For example, the length d of the tooth 20 can be selected as 20 mm, 25 mm, 30 mm, etc.

[0104] Combination Figure 2 In this embodiment, the diameter of the chassis 10 is e, 300 mm ≤ e ≤ 400 mm. For example, the diameter e of the chassis 10 can be 300 mm, 350 mm, 400 mm, etc. Of course, the chassis 10 is not limited to this range, and in other embodiments, it can also be greater than 400 mm, such as 500 mm, 600 mm, etc.

[0105] In combination with the above, it can be seen that the length d of the tooth 20 is much smaller than the radius (d / 2) of the chassis 10 .

[0106] Combination Figure 2 In this embodiment, the blank area 13 is in a circular shape, and the width of the blank area 13 is f1.

[0107] The cutting area 14 is in a circular shape, and the width of the cutting area 14 is f2.

[0108] Among them, f1 / f2=k, 10≤k≤30.

[0109] It can be understood that the radius difference between the first preset circle 101 and the central portion 11 is f1, and the radius difference between the second preset circle 102 and the first preset circle 101 is f2. The ratio k can be selected as 10, 15, 30, etc. The outer periphery of the cutting area 14 is adjacent to the sawtooth structure 16. In other words, the cutting area 14 is distributed in the area adjacent to the periphery 15 of the chassis 10.

[0110] Please refer to Figure 6-Figure 8 , Figure 6-Figure 8 The second centrifugal spray disc 100 provided in this embodiment is shown, and its structure is basically the same as the first centrifugal spray disc 100 mentioned above, except that:

[0111] Figure 2 All teeth 20 of the first centrifugal impeller 100 shown in FIG. 1 are distributed in a single gear ring, that is, only one gear ring is included. Figure 6 All teeth 20 of the second centrifugal spray disc 100 shown in the figure are distributed in multiple gear rings, specifically, it includes two gear rings. It should be noted that each gear ring includes multiple teeth 20. In addition, in other embodiments, the number of gear rings is not limited, and all teeth 20 can be distributed in at least two gear rings, for example, three gear rings, four gear rings, etc.

[0112] Generally, all the gear rings are arranged concentrically. Figure 6 In the embodiment, the two gear rings are an inner gear ring and an outer gear ring, and the multiple teeth 20 included in the inner gear ring are distributed along a third preset circle 103 (shown by a dotted line). Specifically, the multiple teeth 20 included in the inner gear ring are distributed on the circumference of the third preset circle 103 at one end close to the center portion 11. The multiple teeth 20 included in the outer gear ring are distributed along a fourth preset circle 104 (shown by a dotted line). Specifically, the multiple teeth 20 included in the outer gear ring are distributed on the circumference of the fourth preset circle 104 at one end away from the center portion 11.

[0113] In other words, the area between the outer circumference of the central portion 11 and the third preset circle 103 forms the blank area 13 , and the area between the third preset circle 103 and the fourth preset circle 104 forms the cutting area 14 .

[0114] When the liquid flows into the centrifugal spray disc 100 from the liquid inlet pipe 300, it first enters the blank area 13, and then flows to the cutting area 14 under the action of centrifugation. It is first cut into relatively atomized droplets by the multiple teeth 20 in the inner gear ring, and then flows to the outer gear ring under the action of centrifugation. It is cut by the multiple teeth 20 in the outer gear ring, and finally sprayed out from the periphery 15 of the bottom plate 10, and the overall atomization effect is better.

[0115] Optionally, each gear ring includes a plurality of atomizing flow channels 30, and the atomizing flow channels 30 in two adjacent gear rings are correspondingly connected along the radial direction of the chassis 10. For example, in this embodiment, the atomizing flow channels 30 in the inner gear ring correspond to the atomizing flow channels 30 in the outer gear ring, and are correspondingly connected along the radial direction of the chassis 10, so that the droplets flowing into the atomizing flow channels 30 of the inner gear ring can smoothly enter the atomizing flow channels 30 of the outer gear ring, so that under the centrifugal effect, the acceleration effect can be further achieved and the atomization effect can be improved.

[0116] Optionally, in the outermost ring gear, one end of two adjacent teeth 20 close to the periphery 15 of the chassis 10 and the periphery 15 of the chassis 10 jointly define the outlet 32 ​​of the atomizing flow channel 30. For example, in this embodiment, the tooth bodies 21 of the two adjacent teeth 20 in the outer ring gear and the periphery 15 of the chassis 10 jointly define the outlet 32 ​​of the atomizing flow channel 30, that is, the droplets sprayed from the atomizing flow channel 30 in the outer ring gear are directly sprayed from the periphery 15 of the chassis 10. Under the action of gravity, the liquid can also be directly in contact with the periphery 15 of the chassis 10 and then sprayed. When the periphery 15 of the chassis 10 is provided with a sawtooth structure 16, it can directly contact the sawtooth structure 16 and be further cut and atomized by the sawtooth structure 16, which can improve the atomization effect to a certain extent.

[0117] According to an atomization device 1000 provided in this embodiment, the working principle of the atomization device 1000 is as follows:

[0118] When the driving motor 200 is started, the centrifugal spray disc 100 is driven to rotate. After the liquid is filled into the liquid inlet pipe 300, the liquid is input to the top of the centrifugal spray disc 100, so that the liquid falls into the blank area 13 of the bottom plate 10.

[0119] by Figure 2 Taking the centrifugal spray disc 100 in the figure as an example, during the rotation of the chassis 10, the liquid falling into the blank area 13 flows directly to the cutting area 14 in a freely divergent manner under the action of centrifugation, and after being cut by the teeth 20 in the cutting area 14, it flows out from the atomization flow channel 30 between two adjacent teeth 20, and further, it can continue to be cut by the serrated structure 16 on the periphery 15 of the chassis 10, and finally sprayed out from the periphery 15 of the chassis 10 under the action of centrifugation and gravity.

[0120] by Figure 6Taking the centrifugal spray disc 100 in the figure as an example, during the rotation of the chassis 10, the liquid falling into the blank area 13 flows directly to the cutting area 14 in a freely divergent manner under the action of centrifugation, and is cut by the teeth 20 in the inner gear ring in the cutting area 14, and then flows out from the atomization flow channel 30 between two adjacent teeth 20 in the inner gear ring, and then enters the outer gear ring, and is cut by the teeth 20 in the outer gear ring, and then flows out from the atomization flow channel 30 between two adjacent teeth 20 in the outer gear ring. Further, it can continue to be cut by the serrated structure 16 on the periphery 15 of the chassis 10, and finally is sprayed out from the periphery 15 of the chassis 10 under the action of centrifugation and gravity.

[0121] by Figure 1 As for the relative position in the introduction, when the liquid flows from the liquid inlet pipe 300 to the centrifugal spray disc 100, its flow direction is vertical, and the rotation axis of the chassis 10 is also vertical. After the liquid flows into the chassis 10, during the rotation of the chassis 10, due to the centrifugal effect, the liquid flows from the central part 11 of the chassis 10 to the periphery 15. There is a certain deviation angle between the speed direction of the liquid and the radial direction of the chassis 10. Therefore, the teeth 20 are tilted so that the extension direction of the teeth 20 is set at an angle a with the radial direction of the chassis 10, so that the liquid can be better cut and atomized along the flow direction. At the same time, the height of the teeth 20 cannot be too high. When the height of the teeth 20 is too high, the liquid is easy to float upward after being cut by the teeth 20, and it is easy to hit other fixed parts such as the drive motor 200. Of course, the height of the teeth 20 cannot be too low. When the height of the teeth 20 is too low, the liquid cannot be effectively cut. At the same time, the spacing between the teeth 20 should not be too large or too small. If it is too large, the atomization will be incomplete, while if it is too small, the liquid will easily accumulate and cannot be completely atomized.

[0122] By properly setting the angle a, tooth height b and tooth spacing c, the liquid can be fully atomized at a low speed of the centrifugal spray disc 100. Of course, when the flow rate and type of the liquid are different, the angle a, tooth height b and tooth spacing c are selected accordingly during implementation.

[0123] For the technical solution provided in this embodiment, due to the adoption of the above-mentioned parameter design, the centrifugal spray disc 100 can still effectively cut and atomize the atomized liquid under low-speed rotation, so that the particle size of the droplets after cutting and atomization is almost the same as the particle size of the liquid after high-speed cutting and atomization in conventional technical means. Therefore, the use of this structure can greatly reduce the cost of use. Of course, the centrifugal spray disc 100 provided in this embodiment is not limited to operating only in low-speed mode. When the flow rate of the liquid is large and the type of liquid is different, the centrifugal spray disc 100 can also operate in medium-speed mode or high-speed mode.

[0124] In summary, the embodiment of the present invention provides a centrifugal spray disc 100, an atomizing device 1000 and unmanned equipment. The central portion 11 of the chassis 10 is connected to the output shaft of the driving motor 200. Under the drive of the driving motor 200, the chassis 10 rotates. After the liquid to be atomized located above the chassis 10 is input onto the chassis 10, it first enters the blank area 13 on the chassis 10. Under the centrifugal effect, the liquid directly flows into the cutting area 14. The multiple teeth 20 in the cutting area 14 simultaneously cut the liquid flowing into the cutting area 14 to atomize it. In this way, the centrifugal spray disc 100 can still achieve effective cutting and atomization of the liquid to be atomized when operating in the low speed mode, thus greatly improving the service life of the driving motor 200.

[0125] The atomizing device 1000 includes a centrifugal spray disc 100 and has all the functions of the centrifugal spray disc 100 .

[0126] The unmanned equipment includes an atomization device 1000 , which has all the functions of the atomization device 1000 .

[0127] In some specific embodiments, the parameter design of the tooth 20 may not be limited, but the specific structure of the tooth 20 may be limited, which can also improve the effective cutting atomization of the atomized liquid.

[0128] Specifically, the centrifugal spray disc comprises:

[0129] The disc-shaped bottom plate 10 comprises a central portion 11 and an upper surface 12. The upper surface 12 is formed with a blank area 13 surrounding the central portion 11 and a cutting area 14 surrounding and directly adjacent to the blank area 13. The blank area 13 is used to receive liquid and allows the liquid to flow into the cutting area 14 when the bottom plate 10 rotates.

[0130] A plurality of teeth 20 are located in the cutting area 14, the plurality of teeth 20 are protrudingly arranged on the upper surface 12, and the plurality of teeth 20 are arranged along the circumference of the bottom plate 10, the teeth 20 are used to cut the liquid centrifugally flowing in from the blank area 13, and an atomization flow channel 30 for the cut liquid to flow is formed between two adjacent teeth 20;

[0131] Furthermore, the tooth 20 includes a tooth body 21 and a tooth tip 22 connected to each other, and the tooth tip 22 is closer to the central portion 11 relative to the tooth body 21 .

[0132] Optionally, the tooth body 21 is a trapezoidal body, and the tooth tip 22 is a triangular prism. Of course, the tooth body 21 can also be a rectangular parallelepiped.

[0133] Optionally, the upper surface 12 is a plane, the bottom surface 212 of the tooth body 21 is connected to the upper surface 12, the left side 213 of the tooth body 21 is parallel to the right side 214, the front side 215 of the tooth body 21 is parallel to the rear side 216, the left side 213, the right side 214, the front side 215 and the rear side 216 of the tooth body 21 are all perpendicular to the bottom surface 212, and the top surface 211 of the tooth body 21 is inclined to the bottom surface 212; the tooth tip 213 is parallel to the right side 214, the front side 215 and the rear side 216 of the tooth body 21 are all perpendicular to the bottom surface 212; 2 is connected to the upper surface 12, the tooth tip top surface 221 of the tooth tip portion 22 is parallel to the tooth tip bottom surface 222, the tooth tip top surface 221 of the tooth tip portion 22 is connected to the top surface 211 of the tooth body 21, one of the tooth tip side surfaces 223 of the tooth tip portion 22 is fitted with the right side surface 214 of the tooth body 21, and the other two tooth tip side surfaces 223 of the tooth tip portion 22 are respectively connected to the front side surface 215 and the rear side surface 216 of the tooth body 21.

[0134] Optionally, the chassis 10 further comprises a lower surface 17 , and the centrifugal spray disc 100 further comprises a fixing column 18 and at least one reinforcing rib 19 , the fixing column 18 is protruded from the lower surface 17 , and the reinforcing rib 19 connects the lower surface 17 and the fixing column 18 at the same time.

[0135] Optionally, the central portion 11 is provided with a mounting hole 111 , and the mounting hole 111 is used to mount the output shaft of the driving motor 200 , and the mounting hole 111 extends to the inside of the fixing column 18 .

[0136] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A centrifugal spray disc, characterized in that: include: A disc-shaped bottom plate (10), the bottom plate (10) comprising a central portion (11) and an upper surface (12), the upper surface (12) being provided with a blank area (13) surrounding the central portion (11) and a cutting area (14) surrounding the blank area (13) and directly adjacent to the blank area (13); the blank area (13) being used to receive liquid and to allow the liquid to flow into the cutting area (14) when the bottom plate (10) rotates; a plurality of teeth (20) located in the cutting area (14), the plurality of teeth (20) being protruding from the upper surface (12), the plurality of teeth (20) being arranged along the circumference of the bottom plate (10), the teeth (20) being used to cut the liquid centrifugally flowing in from the blank area (13), and an atomization flow channel (30) for the cut liquid to flow is formed between two adjacent teeth (20); The extending direction of the teeth (20) is arranged at an angle a with the radial direction of the chassis (10), the tooth height of the teeth (20) is b, and the tooth spacing between two adjacent teeth (20) is c; The tooth height of at least part of the teeth (20) satisfies: 0mm<b≤5mm; The tooth spacing corresponding to at least some of the teeth (20) satisfies: 1 mm ≤ c ≤ 5 mm; The included angles corresponding to some of the teeth (20) satisfy: 2°≤a≤3°; the included angles corresponding to some of the teeth (20) satisfy: 1°≤a<2°; the included angles corresponding to some of the teeth (20) satisfy: 0°≤a<1°.

2. The centrifugal spray disc according to claim 1, characterized in that: The tooth height of at least part of the teeth (20) satisfies: 1.5 mm < b ≤ 3 mm; and / or, The tooth spacing corresponding to at least some of the teeth (20) satisfies: 1.5 mm ≤ c ≤ 2 mm.

3. The centrifugal spray disc according to claim 1, characterized in that: The tooth (20) comprises a tooth body (21) and a tooth tip (22) which are connected in sequence, and the tooth tip (22) is closer to the central part (11) relative to the tooth body (21).

4. The centrifugal spray disc according to claim 3, characterized in that: The upper surface (12) is a plane, the tooth body (21) is a trapezoidal body, the bottom surface (212) of the tooth body (21) is connected to the upper surface (12), the left side surface (213) and the right side surface (214) of the tooth body (21) are parallel, the front side surface (215) and the rear side surface (216) of the tooth body (21) are parallel, the left side surface (213), the right side surface (214), the front side surface (215) and the rear side surface (216) of the tooth body (21) are all perpendicular to the bottom surface (212), and the top surface (211) of the tooth body (21) is inclined to the bottom surface (212); The tooth tip portion (22) is a triangular prism, the tooth tip bottom surface (222) of the tooth tip portion (22) is connected to the upper surface (12), the tooth tip top surface (221) of the tooth tip portion (22) is parallel to the tooth tip bottom surface (222), the tooth tip top surface (221) of the tooth tip portion (22) is connected to the top surface (211) of the tooth body (21), one of the tooth tip side surfaces (223) of the tooth tip portion (22) is in contact with the right side surface (214) of the tooth body (21), and the other two tooth tip side surfaces (223) of the tooth tip portion (22) are respectively connected to the front side surface (215) and the rear side surface (216) of the tooth body (21); The distance between the tooth tip top surface (221) and the tooth tip bottom surface (222) of the tooth tip portion (22) defines the tooth height of the tooth (20); The minimum distance between two tooth tip side surfaces (223) corresponding to the tooth tip portions (22) of two adjacent teeth (20) defines the tooth spacing corresponding to the teeth (20).

5. The centrifugal spray disc according to claim 3, characterized in that: The tooth body (21), the tooth tip portion (22) and the chassis (10) are integrally formed.

6. The centrifugal spray disc according to claim 1, characterized in that: In the same chassis (10), all the teeth (20) have the same tooth height; and / or, The tooth spacings corresponding to all the teeth (20) are the same.

7. The centrifugal spray disc according to any one of claims 1 to 6, characterized in that: The plurality of teeth (20) are distributed in at least two gear rings, and each of the gear rings comprises a plurality of the teeth (20).

8. The centrifugal spray disc according to claim 7, characterized in that: All of the gear rings are concentrically arranged.

9. The centrifugal spray disc according to claim 7, characterized in that: Each of the gear rings comprises a plurality of atomizing flow channels (30), and the atomizing flow channels (30) in two adjacent gear rings are correspondingly connected along the radial direction of the chassis (10).

10. The centrifugal spray disc according to claim 9, characterized in that: In the gear ring located at the outermost circle, one end of two adjacent teeth (20) close to the peripheral edge (15) of the chassis (10) and the peripheral edge (15) of the chassis (10) jointly define the outlet (32) of the atomizing flow channel (30).

11. The centrifugal spray disc according to any one of claims 1 to 6, characterized in that: The length of the tooth (20) along the extension direction of the tooth (20) is d, and 20 mm≤d≤30 mm.

12. The centrifugal spray disc according to any one of claims 1 to 6, characterized in that: The diameter of the chassis (10) is e, 300mm≤e≤400mm.

13. The centrifugal spray disc according to any one of claims 1 to 6, characterized in that: The blank area (13) is in the shape of a circular ring, and the width of the blank area (13) is f1; The cutting area (14) is in the shape of a circular ring, and the width of the cutting area (14) is f2; Among them, f1 / f2=k, 10≤k≤30.

14. The centrifugal spray disc according to any one of claims 1 to 6, characterized in that: The periphery (15) of the chassis (10) is provided with a sawtooth structure (16).

15. The centrifugal spray disc according to any one of claims 1 to 6, characterized in that: The chassis (10) further comprises a lower surface (17), and the centrifugal spray disc (100) further comprises a fixing column (18) and at least one reinforcing rib (19), wherein the fixing column (18) is protruding from the lower surface (17), and the reinforcing rib (19) simultaneously connects the lower surface (17) and the fixing column (18).

16. The centrifugal spray disc according to claim 15, characterized in that: The central portion (11) is provided with a mounting hole (111), the mounting hole (111) being used to mount an output shaft of a driving motor (200), and the mounting hole (111) extends to the interior of the fixing column (18).

17. A centrifugal spray disc, characterized in that: include: A disc-shaped bottom plate (10), the bottom plate (10) comprising a central portion (11) and an upper surface (12), the upper surface (12) being provided with a blank area (13) surrounding the central portion (11) and a cutting area (14) surrounding the blank area (13) and directly adjacent to the blank area (13); the blank area (13) being used to receive liquid and to allow the liquid to flow into the cutting area (14) when the bottom plate (10) rotates; a plurality of teeth (20) located in the cutting area (14), the plurality of teeth (20) being protruding from the upper surface (12), the plurality of teeth (20) being arranged along the circumference of the bottom plate (10), the teeth (20) being used to cut the liquid centrifugally flowing in from the blank area (13), and an atomization flow channel (30) for the cut liquid to flow is formed between two adjacent teeth (20); The tooth (20) comprises a tooth body (21) and a tooth tip (22) connected to each other, wherein the tooth tip (22) is closer to the central portion (11) relative to the tooth body (21); The extending direction of the teeth (20) is arranged at an angle a with the radial direction of the chassis (10), the tooth height of the teeth (20) is b, and the tooth spacing between two adjacent teeth (20) is c; The tooth height of at least part of the teeth (20) satisfies: 0mm<b≤5mm; The tooth spacing corresponding to at least some of the teeth (20) satisfies: 1 mm ≤ c ≤ 5 mm; The included angles corresponding to 50% of the teeth (20) among the plurality of teeth (20) satisfy: a=2.5°; the included angles corresponding to 30% of the teeth (20) among the plurality of teeth (20) satisfy a=1.5°; and the included angles corresponding to 20% of the teeth (20) among the plurality of teeth (20) satisfy a=0°.

18. The centrifugal spray disc according to claim 17, characterized in that: The tooth body (21) is a trapezoidal body, and the tooth tip (22) is a triangular prism.

19. The centrifugal spray disc according to claim 18, characterized in that: The upper surface (12) is a plane, the bottom surface (212) of the tooth body (21) is connected to the upper surface (12), the left side surface (213) and the right side surface (214) of the tooth body (21) are parallel, the front side surface (215) and the rear side surface (216) of the tooth body (21) are parallel, the left side surface (213), the right side surface (214), the front side surface (215) and the rear side surface (216) of the tooth body (21) are all perpendicular to the bottom surface (212), and the top surface (211) of the tooth body (21) is inclined to the bottom surface (212); The tooth tip bottom surface (222) of the tooth tip portion (22) is connected to the upper surface (12), the tooth tip top surface (221) of the tooth tip portion (22) is parallel to the tooth tip bottom surface (222), the tooth tip top surface (221) of the tooth tip portion (22) is connected to the top surface (211) of the tooth body (21), one of the tooth tip side surfaces (223) of the tooth tip portion (22) is in contact with the right side surface (214) of the tooth body (21), and the other two tooth tip side surfaces (223) of the tooth tip portion (22) are respectively connected to the front side surface (215) and the rear side surface (216) of the tooth body (21).

20. The centrifugal spray disc according to any one of claims 17 to 19, characterized in that: The chassis (10) further comprises a lower surface (17), and the centrifugal spray disc (100) further comprises a fixing column (18) and at least one reinforcing rib (19), wherein the fixing column (18) is protruding from the lower surface (17), and the reinforcing rib (19) simultaneously connects the lower surface (17) and the fixing column (18).

21. The centrifugal spray disc according to claim 20, characterized in that: The central portion (11) is provided with a mounting hole (111), the mounting hole (111) being used to mount an output shaft of a driving motor (200), and the mounting hole (111) extends to the interior of the fixing column (18).

22. An atomizing device, characterized in that: It comprises the centrifugal spray disc (100) as described in any one of claims 1-21.

23. An unmanned device, characterized in that: Comprising the atomization device (1000) as claimed in claim 22.

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