Atomizing nozzle and robot comprising the same

Abstract

This invention belongs to the field of agricultural irrigation technology and discloses an atomizing nozzle and a robot including the atomizing nozzle. The nozzle includes: a shell with a first cavity and a second cavity; and an atomizing section comprising a lower plate and an atomizing shell, the lower plate being fixedly connected to the bottom of the shell, and the atomizing shell being rotatably installed inside the lower plate. This invention drives the rotating section and the atomizing shell to rotate via water flow, utilizing centrifugal force to eject liquid, effectively controlling the droplet size to make them smaller and more uniform, thus significantly improving atomization quality. Furthermore, the kinetic energy of the rotating section is transmitted to the control components via a transmission shaft, causing it to rotate intermittently, thereby periodically changing the water flow rate entering the rotating section. This flow rate change directly leads to a change in the rotational speed of the rotating section, resulting in periodic changes in the size and momentum of the sprayed droplets. This effectively breaks the fixed spray pattern's dead zones, actively and dynamically expanding the wetting area and spray range, achieving more flexible coverage.

Description

Technical Field

[0001] This invention belongs to the field of agricultural irrigation technology, specifically an atomizing nozzle and a robot including the atomizing nozzle. Background Technology

[0002] In modern precision irrigation and plant protection operations, spraying technology plays a crucial role. With the development of smart agriculture, agricultural robots or automated equipment equipped with spraying devices are widely used in pesticide spraying, foliar fertilizer application, and micro-irrigation. Traditional agricultural irrigation and spraying methods, such as flood irrigation or fixed sprinkler systems, often suffer from low water resource utilization, significant evaporation drift loss, and uneven coverage. To achieve agricultural water conservation goals and improve water and fertilizer utilization, atomizing nozzles utilizing centrifugal force have become a current research hotspot because they can produce fine and uniform droplets, reducing droplet loss due to wind or bouncing on the ground, thus ensuring that water and pesticides reach the crop roots or leaves directly.

[0003] However, existing centrifugal atomizing nozzles still have certain technical limitations in practical applications. Most traditional nozzles have a fixed internal flow channel structure, resulting in a relatively constant flow rate and pressure of liquid passing through the nozzle. This leads to a constant rotational speed of the atomizing shell and a consistent droplet size and jet momentum. This single, fixed spraying pattern easily creates spray dead zones in complex farmland environments, meaning that repeated spraying or missed spraying occurs at certain angles or areas, resulting in uneven crop coverage. This, in turn, affects the effectiveness of irrigation and pesticide application, causing a hidden waste of water resources. Summary of the Invention

[0004] The purpose of this invention is to provide an atomizing nozzle and a robot including the atomizing nozzle, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an atomizing nozzle, comprising: a housing, the housing having a first cavity; an atomizing part, the atomizing part including a lower plate and an atomizing shell, the lower plate being fixedly connected to the bottom of the housing, the atomizing shell being rotatably installed inside the lower plate; a rotating part, the rotating part being disposed inside the housing, the rotating part being engaged with the atomizing shell, and water flowing through the rotating part causing the rotating part and the atomizing shell to rotate; a connecting part, the connecting part including an upper plate fixedly connected to the housing, the bottom of the upper plate being rotatably mounted with a control component for controlling the flow rate of water entering the rotating part; and a transmission shaft, the transmission shaft being located inside the first cavity, the rotating part being able to drive the transmission shaft, thereby causing the control component to rotate intermittently.

[0006] During liquid atomization, liquid flows through the rotating part 300, causing it to rotate, which in turn drives the atomizing shell 220 to rotate. The liquid passing through the rotating part 300 is atomized and discharged from the atomizing shell 220, making the sprayed atomized droplets more uniform. Moreover, the drive shaft 500 can drive the control component 420 to rotate intermittently, so that the control component 420 periodically controls the flow rate of liquid entering the rotating part 300, thereby periodically changing the rotation speed of the rotating part 300 and expanding the spray range of the atomized droplets.

[0007] This invention drives the rotating part and atomizing shell to rotate via water flow, using centrifugal force to throw out the liquid. This effectively controls the droplet size, making it smaller and more uniform, thus significantly improving atomization quality. Secondly, the kinetic energy of the rotating part is transmitted to the control components via a transmission shaft, causing it to rotate intermittently. This periodically changes the water flow rate entering the rotating part, and the change in flow rate directly leads to the change in the rotation speed of the rotating part. Consequently, the size and momentum of the sprayed droplets change periodically, effectively breaking the dead zones of fixed spray patterns and actively and dynamically expanding the wetting area and spray range, achieving more flexible coverage. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall appearance of the atomizing nozzle of the present invention; Figure 2 This is a half-sectional schematic diagram of the atomizing nozzle housing of the present invention; Figure 3 This is a half-sectional schematic diagram of the atomizing nozzle cylinder of the present invention; Figure 4 This is a schematic diagram of the internal structure of the atomizing nozzle of the present invention; Figure 5 This is a half-sectional schematic diagram of the first cavity of the atomizing nozzle of the present invention; Figure 6 This is a schematic diagram of the rotating part of the atomizing nozzle of the present invention; Figure 7 This is a schematic diagram of the atomizing shell structure of the atomizing nozzle of the present invention.

[0009] In the diagram: 100, outer shell; 110, first cavity; 120, second cavity; 200, atomizing section; 210, lower plate; 211, first liquid hole; 220, atomizing shell; 221, first orifice; 222, upper atomizing hole; 223, lower atomizing hole; 300, rotating part; 310, cylinder; 320, first plate; 330, lower liquid inlet; 340, first rod; 350, fan blade; 360, first gear; 400, connecting part; 410, upper plate; 411, second liquid hole; 420, control component; 421, second gear; 422, upper liquid inlet; 423, first ring; 424, second baffle; 500, drive shaft; 510, first shaft; 520, lower gear; 530, missing gear; 600, first tube. Detailed Implementation

[0010] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0011] like Figures 1 to 7 As shown, in order to solve the problems of the prior art pointed out in the background art, this application discloses an atomizing nozzle, comprising: The outer casing 100 has a first cavity 110 and a second cavity 120. The atomizing part 200 includes a lower plate 210 and an atomizing shell 220. The lower plate 210 is fixedly connected to the bottom of the outer shell 100, and the atomizing shell 220 is rotatably installed inside the lower plate 210. The rotating part 300 is disposed inside the outer shell 100. The rotating part 300 is engaged with the atomizing shell 220. When water flows through the rotating part 300, it will drive the rotating part 300 and the atomizing shell 220 to rotate. The connecting part 400 includes an upper plate 410 fixedly connected to the outer casing 100. A control element 420 is rotatably mounted on the bottom of the upper plate 410 for controlling the flow rate of water entering the rotating part 300. The drive shaft 500 is installed inside the first cavity 110. The rotating part 300 can drive the control component 420 to rotate intermittently through the drive shaft 500.

[0012] Because of the above-mentioned features, this invention drives the rotating part 300 and the atomizing shell 220 to rotate by water flow, and uses the principle of centrifugal force to throw out the liquid, which can effectively control the droplet size, making it smaller and more uniform, thereby significantly improving the atomization quality. Secondly, the kinetic energy of the rotating part is transmitted to the control component 420 through the transmission shaft 500, causing it to rotate intermittently, thereby periodically changing the water flow rate entering the rotating part. The change in flow rate directly causes the rotation speed of the rotating part 300 to change, which in turn causes the sprayed droplets to change periodically in size and spray momentum. This can effectively break the fixed spray pattern dead zone, actively and dynamically expand the wetting area and spray range, and achieve more flexible coverage.

[0013] The following describes in detail the specific implementation methods for achieving the above-mentioned technical features and the effects that can be further produced.

[0014] like Figures 1 to 4As shown, in a specific embodiment, the curved surface of the lower plate 210 is provided with a first liquid hole 211. The first liquid hole 211 is located above the atomizing shell 220. When the lower plate 210 is fixedly connected to the outer shell 100, the bottom of the first cavity 110 will be sealed.

[0015] like Figure 3 , Figure 4 , Figure 7 As shown, in a specific embodiment, a first hole 221 is provided in the middle of the upper surface of the atomizing shell 220 for connection with the rotating part 300. The lower part of the atomizing shell 220 is provided with a plurality of upper atomizing holes 222 and a plurality of lower atomizing holes 223. The plurality of upper atomizing holes 222 are arranged equidistantly in a circle on the same horizontal plane, and each one is a horizontal oblique hole. The bottom of the atomizing shell 220 is hemispherical, and the plurality of lower atomizing holes 223 are all opened in this area. When liquid enters the interior of the atomizing shell 220, the liquid will be atomized and discharged from the upper atomizing holes 222 and the lower atomizing holes 223. At the same time, the liquid sprayed by the upper atomizing holes 222 will also accelerate and push the atomizing shell 220 to rotate, which plays a role in assisting the rotation of the atomizing shell 220.

[0016] like Figures 2 to 4 , Figure 6 As shown, in a specific embodiment, the rotating part 300 includes a cylinder 310 fixedly installed inside the second cavity 120. A first plate 320 is fixedly connected to the upper part of the inner wall of the cylinder 310. The upper surface of the first plate 320 is flush with the top of the cylinder 310. The first plate 320 and the cylinder 310 restrict the formation of two symmetrical lower liquid inlets 330 for guiding liquid into the middle of the cylinder 310. A first rod 340 is rotatably connected to the middle of the first plate 320. A fan blade 350 is fixedly connected to the middle of the first rod 340. A first gear 360 is fixedly connected to the bottom of the first rod 340. The middle of the first gear 360 has multiple through holes for discharging the liquid flowing through the inside of the cylinder 310. The bottom end of the first rod 340 is adapted to the first hole 221 and the bottom end is located inside the first hole 221 for driving the atomizing shell 220 to rotate. After the liquid enters the interior of the cylinder 310 through the lower inlet 330, it will drive the fan blade 350 to rotate, which in turn drives the atomizing shell 220 to rotate through the first rod 340. During the process, the first gear 360 will rotate along with it. After the liquid flows through the area of ​​the fan blade 350, it will pass through the through hole on the first gear 360 and enter the interior of the lower plate 210 and the atomizing shell 220, and finally be atomized and discharged from the upper atomizing hole 222 and the lower atomizing hole 223.

[0017] like Figure 1 Figure 7As shown, in a specific embodiment, the top of the outer curved surface of the upper plate 410 is threaded, and the middle of the curved surface is provided with a second liquid hole 411. A first tube 600 is fixedly connected between the lower plate 210 and the upper plate 410 to make the second liquid hole 411 and the first liquid hole 211 communicate. The threads on the upper plate 410 are used to install the atomizing nozzle on the robot and allow liquid to enter the interior of the upper plate 410. The liquid will flow through the second liquid hole 411 through the first tube 600 and be discharged from the first liquid hole 211, eventually entering the interior of the lower plate 210 and the atomizing shell 220. Finally, it will be atomized and discharged from the upper atomizing hole 222 and the lower atomizing hole 223. This is used to replenish the liquid entering the interior of the atomizing shell 220 when there is less liquid flowing through the interior of the cylinder 310, thereby ensuring that the amount of liquid sprayed from the atomizing shell 220 is in a stable state.

[0018] In one specific embodiment, the control component 420 includes a second gear 421, which has two upper liquid inlets 422 inside. The upper surface of the second gear 421 is fixedly connected to a first ring body 423 that is rotatably connected to the upper plate 410. The upper surface of the first ring body 423 is fixedly connected to two symmetrical second baffles 424 for intermittently blocking the second liquid hole 411. The included angle of the fan-shaped center of the lower liquid inlet 330 is not less than 90 degrees, and the opening size of the lower liquid inlet 330 is smaller than the opening size of the upper liquid inlet 422. The second gear 421 can be driven to rotate, which in turn drives the first ring 423 and the two second baffles 424 to rotate. During the rotation of the second gear 421, the two upper liquid inlets 422 will rotate accordingly. This causes the degree of overlap between the openings of the lower liquid inlet 330 and the upper liquid inlet 422 to change periodically. When the degree of overlap is the greatest, more liquid can pass through the upper liquid inlet 422 and the lower liquid inlet 330. At this time, one of the second baffles 424 will block the second liquid hole 411 to the maximum extent, and only a small amount of liquid can pass through the second liquid hole 411. Then the second gear 421 continues to rotate. The overlap between the upper liquid inlet 422 and the lower liquid inlet 330 changes. As the rotation proceeds, the overlap gradually decreases, reducing the amount of liquid passing through the upper liquid inlet 422 and the lower liquid inlet 330. Meanwhile, the area blocked by the second baffle 424 of the second liquid hole 411 gradually decreases, causing the exposed area of ​​the second liquid hole 411 to gradually increase, allowing more liquid to enter the second liquid hole 411. When the overlap is at its minimum, the second baffle 424 will no longer block the second liquid hole 411, allowing the second liquid hole 411 to be fully exposed. Subsequently, the second gear 421 continues to rotate, and the overlap gradually increases, while the exposed area of ​​the second liquid hole 411 gradually decreases. It should be noted that, since the included angle of the sector center of the lower liquid inlet 330 is not less than 90 degrees, and the opening size of the lower liquid inlet 330 is smaller than that of the upper liquid inlet 422, the lower liquid inlet 330 cannot be completely blocked during the rotation of the second gear 421, and liquid will continue to flow into the cylinder 310.

[0019] In one specific embodiment, the drive shaft 500 includes a first shaft 510 rotatably mounted in the first cavity 110, a lower gear 520 fixedly connected to the bottom of the first shaft 510, the lower gear 520 meshing with the first gear 360, and a missing gear 530 fixedly connected to the top of the first shaft 510, the missing gear 530 intermittently meshing with the second gear 421. When the first gear 360 is driven to rotate, it will drive the lower gear 520 to rotate. The lower gear 520 drives the missing gear 530 to rotate through the first shaft 510. Since the curved surface of the missing gear 530 only has teeth in some areas, the missing gear 530 can drive the second gear 421 to rotate intermittently. While driving the second gear 421 to rotate, it reduces the speed of the second gear 421 relative to the first rod 340, so that the overlap between the upper liquid inlet 422 and the lower liquid inlet 330 changes relatively slowly.

[0020] This nozzle transforms water into extremely fine droplets that can evenly cover the crop area for irrigation, avoiding the water waste of traditional flood irrigation. Through secondary atomization by centrifugal force, the resulting droplets are smaller and more uniform. The fine droplets can effectively reduce the loss caused by being blown away by the wind or bouncing on the ground, ensuring that water reaches the roots or leaves of the crops directly, thereby improving water utilization.

[0021] The robot with the atomizing nozzle, including the aforementioned atomizing nozzle, has a dynamic balance where the overlap of the main path opening and the degree of blockage of the second baffle 424 in the auxiliary path are inversely related when the control component 420 rotates. When the liquid inflow into the main path is at its maximum, the auxiliary path is blocked to its minimum; conversely, when the liquid inflow into the main path is at its minimum, the auxiliary path is fully open. This dynamic balance ensures that the total amount of liquid entering the atomizing shell 220 remains relatively stable, effectively preventing atomization interruption or dry grinding caused by a sudden decrease in flow rate, and greatly improving the continuity and stability of the spray.

[0022] Secondly, the drive shaft 500 uses a missing gear 530 and a second gear 421 in intermittent meshing. The first gear 360 rotates at a higher speed, while the missing gear 530 drives the second gear 421 with only some teeth, thus achieving a speed reduction transmission. This makes the overlap between the upper liquid inlet 422 and the lower liquid inlet 330 change more slowly and smoothly. The spray momentum of the atomized liquid does not change abruptly, but rather sweeps in a periodic, gradual manner. This can effectively eliminate the dead angles of fixed-pattern spraying, making the boundary of the wet area present a soft transition zone, and the coverage is wider and more uniform.

[0023] When the second gear 421 rotates to the position with the minimum overlap, the lower inlet 330 cannot be completely blocked. This ensures that water can always flow through the rotating part 300, continuously pushing the fan blades 350 and flushing the internal flow channels. This prevents the fan blades from jamming due to flow interruption and greatly improves the durability and environmental adaptability of the nozzle.

[0024] Working principle: During liquid atomization, the liquid enters the interior of the upper plate 410. A portion of the liquid passes through the lower inlet 330 and the upper inlet 422 into the interior of the cylinder 310, which drives the fan blade 350 to rotate. This, in turn, drives the atomizing shell 220 to rotate via the first rod 340. During this process, the first gear 360 rotates along with the first gear 360, which in turn drives the lower gear 520 to rotate. The lower gear 520, through the first shaft 510, drives the missing gear 530 to rotate, which in turn drives the second gear 421 to rotate intermittently. After the liquid flows through the fan blade 350 area, it will pass through the through hole on the first gear 360 and enter the interior of the lower plate 210 and the atomizing shell 220, and finally be atomized and discharged from the upper atomizing hole 222 and the lower atomizing hole 223; Another portion of the liquid will flow through the second liquid hole 411 through the first tube 600 and be discharged from the first liquid hole 211, eventually entering the interior of the lower plate 210 and the atomizing shell 220, and finally being atomized and discharged from the upper atomizing hole 222 and the lower atomizing hole 223. This is used to replenish the liquid entering the interior of the atomizing shell 220 when there is less liquid flowing through the interior of the cylinder 310, thereby ensuring that the amount of liquid sprayed out by the atomizing shell 220 is in a stable state. During atomization, the second gear 421 is driven to rotate, which in turn drives the first ring 423 and the two second baffles 424 to rotate. As the second gear 421 rotates, the two upper liquid inlets 422 rotate as well. This causes the degree of overlap between the lower liquid inlet 330 and the upper liquid inlet 422 to change periodically. When the degree of overlap is at its maximum, more liquid can pass through both the upper liquid inlet 422 and the lower liquid inlet 330. At this point, one of the second baffles 424 will block the second liquid hole 411 to its maximum extent, allowing only a small amount of liquid to pass through. Then, the second gear 421 continues to rotate. The rotation of the gear changes the overlap between the upper inlet 422 and the lower inlet 330. As the gear rotates, the overlap gradually decreases, reducing the amount of liquid passing through the upper inlet 422 and the lower inlet 330. The area blocked by the second baffle 424 of the second liquid hole 411 gradually decreases, increasing the exposed area of ​​the second liquid hole 411 and allowing more liquid to enter the second liquid hole 411. When the overlap is at its minimum, the second baffle 424 no longer blocks the second liquid hole 411, fully exposing the second liquid hole 411. Subsequently, the second gear 421 continues to rotate, and the overlap gradually increases, while the exposed area of ​​the second liquid hole 411 gradually decreases.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An atomizing nozzle, characterized in that, include: The outer shell (100) has a first cavity (110) and a second cavity (120). The atomizing part (200) includes a lower plate (210) and an atomizing shell (220). The lower plate (210) is fixedly connected to the bottom of the outer shell (100), and the atomizing shell (220) is rotatably installed inside the lower plate (210). Rotating part (300) is disposed inside the second cavity (120). The rotating part (300) is engaged with the atomizing shell (220). When water flows through the rotating part (300), it will drive the rotating part (300) and the atomizing shell (220) to rotate. The connecting part (400) includes an upper plate (410) fixedly connected to the outer shell (100), and a control element (420) is rotatably mounted on the bottom of the upper plate (410) for controlling the flow rate of water entering the rotating part (300); The drive shaft (500) is installed inside the first cavity (110), and the rotating part (300) can drive the control component (420) to rotate intermittently through the drive shaft (500).

2. The atomizing nozzle according to claim 1, characterized in that: The lower plate (210) has a first liquid hole (211) on its curved surface.

3. The atomizing nozzle according to claim 1, characterized in that: The atomizing shell (220) has a first hole (221) in the middle of its upper surface, and a plurality of upper atomizing holes (222) and a plurality of lower atomizing holes (223) in the lower part of the atomizing shell (220). The upper atomizing holes (222) atomize the liquid and accelerate the rotation of the atomizing shell (220).

4. The atomizing nozzle according to claim 3, characterized in that: The rotating part (300) includes a cylindrical body (310) fixedly installed inside the second cavity (120). A first plate (320) is fixedly connected to the upper part of the inner wall of the cylindrical body (310). The first plate (320) and the cylindrical body (310) restrict the formation of two symmetrical lower liquid inlets (330). A first rod (340) is rotatably connected to the middle part of the first plate (320). A fan blade (350) is fixedly connected to the middle part of the first rod (340). A first gear (360) is fixedly connected to the bottom of the first rod (340). The bottom end of the first rod (340) is adapted to the first hole (221) and the bottom end is located inside the first hole (221). The first gear (360) has multiple through holes in the middle part.

5. The atomizing nozzle according to claim 2, characterized in that: The top of the outer curved surface of the upper plate (410) is threaded, and a second liquid hole (411) is provided in the middle of the curved surface.

6. The atomizing nozzle according to claim 5, characterized in that: A first tube (600) is fixedly connected between the lower plate (210) and the upper plate (410) to connect the second liquid hole (411) and the first liquid hole (211).

7. The atomizing nozzle according to claim 4, characterized in that: The control component (420) includes a second gear (421), which has two upper liquid inlets (422) inside. The upper surface of the second gear (421) is fixedly connected to a first ring (423) that is rotatably connected to the upper plate (410). The upper surface of the first ring (423) is fixedly connected to two symmetrical second baffles (424) for intermittently blocking the second liquid hole (411).

8. The atomizing nozzle according to claim 7, characterized in that: The drive shaft (500) includes a first shaft (510) rotatably mounted in a first cavity (110), a lower gear (520) fixedly connected to the bottom of the first shaft (510), the lower gear (520) meshing with a first gear (360), and a missing gear (530) fixedly connected to the top of the first shaft (510), the missing gear (530) intermittently meshing with a second gear (421).

9. The atomizing nozzle according to claim 7, characterized in that: The opening size of the lower inlet (330) is smaller than the opening size of the upper inlet (422).

10. A robot with an atomizing nozzle, characterized in that, Includes the atomizing nozzle as described in any one of claims 1-9.

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