Spray disc, atomization device and unmanned aerial vehicle

Abstract

The embodiment of the utility model relates to the technical field of atomization devices, and particularly discloses a spray disc, an atomization device and an unmanned aerial vehicle, the spray disc comprises a first disc body and a second disc body, the first disc body is provided with a liquid injection area, a plurality of first crushing teeth and a plurality of first separation teeth, and the liquid injection area is arranged on the surface of the first disc body; the multiple first crushing teeth are arranged on the edge of the surface of the first disc body in a protruding mode at intervals in the circumferential direction, every two adjacent first crushing teeth form a first flow channel, the multiple first separation teeth are located on the periphery of the first disc body at intervals, the second disc body and the first disc body are fixed in an overlapped mode, and the second disc body is provided with multiple second crushing teeth and multiple second separation teeth. The multiple second crushing teeth are arranged on the edge of the surface, facing the liquid injection area, of the second disc body in the circumferential direction at intervals in a protruding mode, every two adjacent second crushing teeth form a second flow channel, and the multiple second separation teeth are located on the periphery of the second disc body at intervals. By means of the mode, the atomization effect that atomized liquid drops are small in particle diameter and wide in range is achieved.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of atomizing devices, and in particular to a spray disc, an atomizing device and an unmanned aerial vehicle. Background Art

[0002] The centrifugal atomizer is a fluid atomizer widely used in the UAV plant protection industry. The centrifugal atomizer usually includes a centrifugal spray disc and a drive device. The drive device drives the centrifugal spray disc to rotate, and the fluid is accelerated and thrown outward through the centrifugal spray disc, thereby achieving the effect of fluid centrifugal atomization.

[0003] However, in the process of implementing the embodiments of the utility model, the inventors found that: currently, the spray disc is provided with a plurality of crushing teeth circumferentially spaced on the edge of the surface of the first disc body. The fluid is cut, crushed and atomized when flowing through the crushing teeth, but the fluid is crushed and atomized only once by the crushing teeth, resulting in a large particle diameter of the atomized droplets and a poor atomization effect. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a spray disc, which can solve the problem that the particle diameter of atomized liquid droplets is large and the atomization effect is poor.

[0005] To solve the above technical problems, a technical solution adopted by the utility model is: to provide a spray plate, including a first plate body and a second plate body, the first plate body is provided with a liquid injection area, a plurality of first crushing teeth and a plurality of first separation teeth, the liquid injection area is all arranged on the surface of the first plate body, the plurality of first crushing teeth are circumferentially spaced and protruded from the edge of the surface of the first plate body, two adjacent first crushing teeth form a first flow channel, the plurality of first separation teeth are spaced and located at the circumference of the first plate body, the second plate body is stacked and fixed with the first plate body, the second plate body is provided with a plurality of second crushing teeth and a plurality of second separation teeth, the plurality of second crushing teeth are circumferentially spaced and protruded from the edge of the surface of the second plate body facing the liquid injection area, two adjacent second crushing teeth form a second flow channel, the first flow channel and the second flow channel at least partially overlap in the radial direction, and the plurality of second separation teeth are spaced and located at the circumference of the second plate body.

[0006] Optionally, the first crushing tooth and the second crushing tooth are staggered in radial direction.

[0007] Optionally, a first cutting portion is provided at one end of the first crushing tooth facing the central axis of the first disk body, and a second cutting portion is provided at one end of the second crushing tooth facing the central axis of the second disk body.

[0008] Optionally, a guide portion is provided at one end of the second crushing tooth away from the central axis of the second disk body.

[0009] Optionally, along the axial direction of the spray disc, the first separation tooth and the second separation tooth are both in the shape of an isosceles triangle.

[0010] Optionally, a third flow channel is disposed on the surface of the first disk, and the third flow channel is located upstream of the second flow channel.

[0011] Optionally, the second disk body is provided with an opening, and the opening is connected to the liquid injection area.

[0012] To solve the above technical problems, another technical solution adopted by the utility model is: to provide an atomization device, including a driving device, a shell and the above-mentioned spray disc, the driving device is fixed to the shell, and the output shaft of the driving device is connected to the first disc body of the spray disc.

[0013] Optionally, the atomization device includes a liquid inlet pipe, the shell is provided with a liquid outlet, the liquid outlet is connected to the liquid injection area of ​​the spray disc, the liquid inlet pipe is connected to the shell, and the liquid inlet pipe is connected to the liquid outlet.

[0014] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide an unmanned aerial vehicle, including the above-mentioned spray disc.

[0015] In an embodiment of the utility model, a spray plate includes a first plate body and a second plate body, the first plate body being provided with a liquid injection area, a plurality of first crushing teeth and a plurality of first separation teeth, the liquid injection area being provided on the surface of the first plate body, the plurality of first crushing teeth being circumferentially spaced and protruding from the edge of the surface of the first plate body, two adjacent first crushing teeth forming a first flow channel, the plurality of first separation teeth being spaced and located at the periphery of the first plate body, the second plate body being stacked and fixed with the first plate body, the second plate body being provided with a plurality of second crushing teeth and a plurality of second separation teeth, the plurality of second crushing teeth being circumferentially spaced and protruding from the edge of the surface of the second plate body facing the liquid injection area, two adjacent second crushing teeth forming a second flow channel, the first flow channel and the second flow channel at least partially overlap in the radial direction, and the plurality of second separation teeth being spaced and located at the periphery of the second plate body. When the spray disc rotates, the fluid flows through the second crushing teeth and is cut and broken into fine liquid flows that flow along the second flow channel to the second separation teeth and the first crushing teeth. Part of the fine liquid flow is separated into atomized droplets when flowing through the second separation teeth, and another part of the fine liquid is further cut and broken into a finer liquid flow when flowing through the first crushing teeth. The finer liquid flow flows along the first flow channel to the first separation teeth, and the finer liquid flow is separated into fine atomized droplets when flowing through the first separation teeth, so that the particle diameter of the atomized droplets is small, and a wide range of atomization effects are achieved, thereby improving the atomization effect. Furthermore, the atomized droplet flight cluster is flat, and the spray radius is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the spray plate provided by the embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the structural cross-section of the spray disc provided by the embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the spray plate provided by the embodiment of the utility model;

[0020] Figure 4 yes Figure 3 Schematic diagram of the structural cross section at AA;

[0021] Figure 5 It is a schematic diagram of the top view of the first plate body of the spray plate provided in an embodiment of the utility model;

[0022] Figure 6 yes Figure 5 A schematic diagram of the structure enlarged at B;

[0023] Figure 7 It is a schematic diagram of the top view of the second disk body of the spray disk provided in an embodiment of the utility model;

[0024] Figure 8 yes Figure 7 A schematic diagram of the structure enlarged at C;

[0025] Fig. 9 It is a schematic diagram of the structure of the atomization device provided in an embodiment of the utility model;

[0026] Fig.10 It is a schematic diagram of the structural cross-section of the atomization device provided in the embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1000. Atomizing device;

[0029] 100, spray plate;

[0030] 1. first disc body; 11. liquid injection area; 12. first crushing tooth; 121. first cutting part; 13. first separation tooth; 14. first flow channel; 15. partition; 16. third flow channel; 17. connecting column; 18. shaft hole;

[0031] 2. Second disk; 21. Second crushing tooth; 211. Second cutting portion; 212. Guide portion; 22. Second separation tooth; 23. Second flow channel; 24. Opening. 200. Driving device;

[0032] 300, housing;

[0033] 400. Liquid inlet pipe. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "locked to" another element, it can be directly on the other element, or there can be one or more centered elements between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements between them. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0036] See also Figure 1-Figure 3 The spray plate 100 includes a first plate body 1 and a second plate body 2. The first plate body 1 and the second plate body 2 are stacked and fixed, and the first plate body 1 and the second plate body 2 are both used for cutting and breaking liquid and separating liquid to form atomized droplets.

[0037] For the first disk 1, please refer to Figure 2 and Figure 4-Figure 6The first disk body 1 is provided with a liquid injection area 11, a plurality of first crushing teeth 12 and a plurality of first separation teeth 13. The liquid injection area 11 surrounds the central axis of the first disk body 1, and the liquid injection area 11 is used to receive liquid. A plurality of first crushing teeth 12 are circumferentially spaced and protruded from the edge of the surface of the first disk body 1, and two adjacent first crushing teeth 12 form a first flow channel 14. The first crushing teeth 12 are used to cut and crush the liquid flow to form a small liquid flow, and the first flow channel 14 is for the small liquid flow to flow through. The first crushing tooth 12 is provided with a first cutting portion 121, and the shape of the first cutting portion 121 along the axial direction of the spray disk 100 is roughly triangular. Specifically, the shape of the first cutting portion 121 along the axial direction of the spray disk 100 is an isosceles triangle. The first cutting portion 121 is located at one end of the first crushing tooth 12 facing the central axis of the first disk body 1, and the first cutting portion 121 is used to facilitate cutting and crushing the liquid flow. A plurality of first separation teeth 13 are spaced apart at the periphery of the first disc body 1. Along the axial direction of the spray disc 100, the shape of the first separation teeth 13 is triangular. Specifically, along the axial direction of the spray disc 100, the shape of the first separation teeth 13 is an isosceles triangle. The first separation teeth 13 are used to separate the liquid flow into atomized droplets to form an atomization effect.

[0038] In some embodiments, see Figure 5 The first disk body 1 is provided with a plurality of partitions 15 , which are circumferentially protruded from the injection area 11 , and a third flow channel 16 is formed between two adjacent partitions 15 , so that the surface of the first disk body 1 has a third flow channel 16 .

[0039] In some embodiments, see Figure 2 and Figure 5 In order to connect the first disk body 1 with the driving device 200 of the atomizing device 1000, the first disk body 1 is provided with a connecting column 17 and an axial hole 18. The connecting column 17 is protruded at the center of the surface of the first disk body 1. The connecting column 17 is surrounded by the liquid injection area 11. The axial hole 18 runs through the connecting column 17 and the first disk body 1. The axial hole 18 is used for the output shaft of the driving device 200 to pass through and be fixed.

[0040] For the second disk 2, see Figure 2 , Figure 4 , Figure 7 and Figure 8The second disk body 2 is provided with a plurality of second crushing teeth 21 and a plurality of second separation teeth 22. The plurality of second crushing teeth 21 are circumferentially spaced and protruded on the edge of the surface of the second disk body 2 facing the liquid injection area 11. Two adjacent second crushing teeth 21 form a second flow channel 23. The second flow channel 23 is located downstream of the third flow channel 16 and upstream of the first flow channel 14. The first flow channel 14 and the second flow channel 23 overlap at least partially in the radial direction, that is, they are projections in the radial direction. The second crushing teeth 21 are at least partially located between two adjacent first crushing teeth 12 or overlap with the first crushing teeth 12. The second crushing teeth 21 are used to cut and crush the liquid flow to form a fine liquid flow, and the second flow channel 23 is for the fine liquid flow to flow through. The second crushing teeth 21 are radially staggered with the first crushing teeth 12 so that the first flow channel 14 and the second flow channel 23 overlap in the radial direction, so that the first crushing teeth 12 further cut and crush the liquid flow to form a finer liquid flow, and the density of the crushing teeth is increased. The second crushing teeth 21 are provided with a second cutting portion 211 and a flow guide portion 212. The second cutting portion 211 is located at one end of the second crushing tooth 21 facing the central axis of the second disk body 2. The shape of the second cutting portion 211 along the axial direction of the spray disc 100 is roughly triangular. Specifically, the shape of the second cutting portion 211 along the axial direction of the spray disc 100 is an isosceles triangle. The second cutting portion 211 is used to facilitate cutting and crushing the liquid flow. The guide portion 212 is located at one end of the second crushing tooth 21 away from the central axis of the second disk body 2. The shape of the guide portion 212 along the axial direction of the spray disc 100 is triangular. Specifically, the shape of the guide portion 212 along the axial direction of the spray disc 100 is an isosceles triangle. The guide portion 212 is used to divert the liquid flow to the first crushing tooth 12. A plurality of second separation teeth 22 are spaced apart at the periphery of the second disc body 2. Along the axial direction of the spray disc 100, the second separation teeth 22 are in the shape of a triangle. Specifically, along the circumference of the spray disc 100, the second separation teeth 22 are in the shape of an isosceles triangle. The second separation teeth 22 are used to separate the liquid flow into atomized droplets to form an atomization effect. Since the liquid flow is cut and broken twice to form a finer liquid flow, the finer liquid flow is separated into atomized droplets by the second separation teeth 22, so that the particle diameter of the atomized droplets is smaller, and a wide range of atomization effects is achieved. Furthermore, the flying cluster of the atomized droplets is relatively flat, and the spray width is large.

[0041] In some embodiments, the central axis of the second tray 2 is collinear with the central axis of the first tray 1 .

[0042] In some embodiments, see Figure 7 The second disk body 2 is provided with an opening 24 , which is connected to the liquid injection area 11 , and the opening 24 is for the connecting column 17 to pass through.

[0043] By adopting the spray plate 100 of the above structure, the spray plate 100 of the stacked double-disc body has a simpler structure, is easier to manufacture, and has a low manufacturing cost.

[0044] In an embodiment of the utility model, the spray disc 100 includes a first disc body 1 and a second disc body 2. The first disc body 1 is provided with a liquid injection area 11, a plurality of first crushing teeth 12 and a plurality of first separation teeth 13. The liquid injection area 11 is arranged on the surface of the first disc body 1. The plurality of first crushing teeth 12 are circumferentially spaced and protruded from the edge of the surface of the first disc body 1. Two adjacent first crushing teeth 12 form a first flow channel 14. The plurality of first separation teeth 13 are spaced and located at the circumference of the first disc body 1. The second disc body 2 is fixedly stacked with the first disc body 1. The second disc body 2 is provided with a plurality of second crushing teeth 21 and a plurality of second separation teeth 22. The plurality of second crushing teeth 21 are circumferentially spaced and protruded from the edge of the surface of the second disc body 2 facing the liquid injection area 11. Two adjacent second crushing teeth 21 form a second flow channel 23. The first flow channel 14 and the second flow channel 23 at least partially overlap in the radial direction. The plurality of second separation teeth 22 are spaced and located at the circumference of the second disc body 2. When the spray disc 100 rotates, the fluid flows through the second crushing teeth 21 and is cut and broken into fine liquid flows, which flow along the second flow channel 23 to the second separation teeth 22 and the first crushing teeth 12. Part of the fine liquid flow is separated into atomized droplets when flowing through the second separation teeth 22, and another part of the fine liquid is further cut and broken into a finer liquid flow when flowing through the first crushing teeth 12. The finer liquid flow flows along the first flow channel 14 to the first separation teeth 13, and the finer liquid flow is separated into fine atomized droplets when flowing through the first separation teeth 13, so that the particle diameter of the atomized droplets is small, and a wider range of atomization effects is achieved, thereby improving the atomization effect. Furthermore, the atomized droplet flight cluster is flat, and the spray radius is large.

[0045] The utility model also provides an embodiment of an atomizing device 1000, see Fig. 9 and Fig.10 The atomizing device 1000 includes a driving device 200, a shell 300 and the above-mentioned spray disc 100. The driving device 200 is fixed to the shell 300. The output shaft of the driving device 200 passes through the shaft hole 18 and is connected and fixed to the first disc body 1. For the structure and function of the spray disc 100, please refer to the above-mentioned embodiment, which will not be described here one by one.

[0046] In some embodiments, see Fig. 9 and Fig.10 The atomizing device 1000 also includes a liquid inlet pipe 400. The shell 300 is provided with a liquid outlet, and the liquid outlet is connected to the liquid injection area 11 of the first plate body 1 of the spray plate 100. The liquid inlet pipe 400 is connected to the shell 300 by a thread, and the liquid inlet pipe 400 is connected to the liquid inlet. The liquid inlet pipe 400 is used to communicate with an external pipeline, for example, to connect with a delivery pipeline of an unmanned aerial vehicle.

[0047] It can be understood that, in some embodiments, the liquid inlet tube 400 is fastened to the housing 300 by snap-fitting.

[0048] The present invention further provides an unmanned aerial vehicle embodiment, the unmanned aerial vehicle includes the above-mentioned atomizing device 1000. The structure and function of the atomizing device 1000 can be found in the above-mentioned embodiment, which will not be described in detail here.

[0049] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the protection scope of the claims attached to the utility model.

Claims

1. A spray plate, characterized in that: include: The first disc body is provided with a liquid injection area, a plurality of first crushing teeth and a plurality of first separation teeth, wherein the liquid injection area is provided on the surface of the first disc body, the plurality of first crushing teeth are circumferentially spaced and protruded on the edge of the surface of the first disc body, two adjacent first crushing teeth form a first flow channel, and the plurality of first separation teeth are spaced and located at the periphery of the first disc body; The second disk body is fixedly stacked with the first disk body, and the second disk body is provided with a plurality of second crushing teeth and a plurality of second separation teeth. The plurality of second crushing teeth are circumferentially spaced and protruded from the edge of the surface of the second disk body facing the injection area, and two adjacent second crushing teeth form a second flow channel. The first flow channel and the second flow channel at least partially overlap in the radial direction, and the plurality of second separation teeth are spaced and located at the periphery of the second disk body.

2. The spray plate according to claim 1, characterized in that: The first crushing teeth and the second crushing teeth are staggered in radial direction.

3. The spray plate according to claim 2, characterized in that: A first cutting portion is provided at one end of the first crushing tooth facing the central axis of the first disk body, and a second cutting portion is provided at one end of the second crushing tooth facing the central axis of the second disk body.

4. The spray plate according to claim 3, characterized in that: A flow guide is provided at one end of the second crushing tooth away from the central axis of the second disk body.

5. The spray plate according to claim 1, characterized in that: Along the axial direction of the spray disc, the first separation tooth and the second separation tooth are both in the shape of an isosceles triangle.

6. The spray plate according to any one of claims 1 to 5, characterized in that: A third flow channel is disposed on the surface of the first disk, and the third flow channel is located upstream of the second flow channel.

7. The spray plate according to claim 1, characterized in that: The second disk body is provided with an opening, and the opening is connected to the liquid injection area.

8. An atomizing device, characterized in that: It comprises a driving device, a shell and a spray disc as described in any one of claims 1 to 7, wherein the driving device is fixed to the shell, and the output shaft of the driving device is connected to the first disc body of the spray disc.

9. The atomizing device according to claim 8, characterized in that: The atomizing device comprises a liquid inlet pipe, the shell is provided with a liquid outlet, the liquid outlet is connected to the liquid injection area of ​​the spray plate, the liquid inlet pipe is connected to the shell, and the liquid inlet pipe is connected to the liquid outlet.

10. An unmanned aerial vehicle, characterized in that: Comprising the atomizing device as claimed in claim 9.

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