CN210846823U - Atomizing sprinkler, atomizing sprinkler system and plant protection equipment - Google Patents

Abstract

The utility model discloses an atomizing sprinkler, atomizing sprinkler system and plant protection equipment, atomizing sprinkler includes: a centrifugal nozzle capable of ejecting droplets; the fog droplet recycling device comprises an outer shell cover which is circumferentially arranged around the centrifugal nozzle, wherein the outer shell cover comprises a fog droplet ejection port which is positioned at the bottom and vertically penetrates through the outer shell cover and a liquid collecting tank which is arranged on the outer side of the fog droplet ejection port; and the boosting fan is used for forming a downward wind field between the centrifugal spray head and the fog droplet ejection port to drive the fog droplets to be ejected downwards from the fog droplet ejection port in an accelerated manner. The utility model discloses a set up the fog droplet recovery piece in atomizing sprinkler to utilize the collection effect of the effect of blockking of outer clamshell and collecting tank, guaranteeing to accord with the little fog droplet that sprays the particle diameter requirement under fog droplet blowout spun prerequisite, reduce the ejection volume that is not conform to the big fog droplet that sprays the particle diameter requirement, improve the deposit homogeneity and the utilization ratio of spraying, and utilize the boosting fan can accelerate fog droplet settling velocity and spray the accuracy nature in order to improve the orientation.

Description

Atomizing sprinkler, atomizing sprinkler system and plant protection equipment

Technical Field

The utility model relates to a plant protection equipment technical field specifically, relates to an atomizing sprinkler, atomizing sprinkler system and plant protection equipment.

Background

The application scenes of the existing plant protection unmanned aerial vehicle are continuously widened, for example, the plant protection unmanned aerial vehicle can be used for field crop pesticide application, fruit tree spraying, mosquito killing and epidemic prevention and the like, and the requirement on precise pesticide application is higher and higher in the future. However, the current plant protection unmanned aerial vehicle mainly carries out atomization spraying through a centrifugal spray head or a hydraulic spray head, but due to the difference of the capture capacities of different organisms on fog drops, only the fog drops sprayed in the optimal particle size range can obtain the optimal control effect.

For example, in the field of mosquito and epidemic prevention, the killing effect is mainly achieved by the ultrafine fog drops with the particle size of below 50 microns, and to meet the spraying requirement, the requirement on the spray head is extremely high, and the spray head usually needs higher power and higher maintenance cost. Even if the middle diameter of the atomizing volume of the nozzle is 50 microns, only about 50% of atomized droplets in the atomized droplet group have the particle size not larger than 50 microns, and the rest atomized droplets larger than 50 microns do not play the roles of insect killing and epidemic prevention, even if a centrifugal nozzle with better atomizing performance is adopted, a small amount of large droplets which do not meet the requirement of the particle size can be sprayed, so that not only is the resource wasted, but also the larger economic loss can be caused. For example, fruit growers have reflected that pesticide spots are formed on the surfaces of fruits after contacting with fog drops, so that the selling phases of the fruits are seriously influenced, the price is stressed, and economic losses are caused to the fruit growers.

SUMMERY OF THE UTILITY MODEL

To prior art's above-mentioned defect or not enough, the utility model provides an atomizing sprinkler, atomizing sprinkler system and plant protection equipment can improve the deposition uniformity and the utilization ratio of spraying, and can improve the accuracy nature that the orientation was sprayed.

In order to achieve the above object, the present invention provides in a first aspect an atomizing spray device, the atomizing spray device comprising:

a centrifugal nozzle capable of ejecting droplets;

the fog droplet recycling device comprises a shell cover which is circumferentially arranged around the centrifugal nozzle, wherein the shell cover comprises a fog droplet ejection port which is positioned at the bottom and vertically penetrates through the shell cover, and a liquid collecting tank which is arranged outside the fog droplet ejection port;

and the boosting fan is used for forming a downward wind field between the centrifugal spray head and the fog droplet ejection port to drive the fog droplets to be ejected downwards from the fog droplet ejection port in an accelerated manner.

Optionally, the boost fan is an axial fan, and a fan central axis of the boost fan, an outer casing central axis of the outer casing, and a nozzle central axis of the centrifugal nozzle coincide with each other.

Optionally, the outer housing cover includes a fan mounting opening disposed at the top center and extending vertically therethrough, and the boost fan is mounted in the fan mounting opening and above the centrifugal nozzle.

Optionally, the centrifugal nozzle comprises a nozzle body, a nozzle rotating shaft extending downwards from the nozzle body, and a spray disc sleeved on the nozzle rotating shaft and used for rotationally spraying mist, and the lower portion of the nozzle rotating shaft penetrates through the spray disc and is connected with the boosting fan.

Optionally, the boosting fan includes central rotating part and follows the radial outwards stretches out and follow a plurality of flabellums that circumference interval was arranged in proper order of central rotating part, the radial outer end of flabellum with radial interval between the fan axis is greater than spout the radius of dish.

Optionally, a liquid return port for connecting a liquid storage tank for supplying liquid to the centrifugal nozzle is arranged in the liquid collection tank.

Optionally, a plurality of the liquid return ports are arranged in the liquid collecting tank at equal intervals in the circumferential direction.

Optionally, the liquid collecting groove is an annular groove at the bottom edge of the outer shell cover, and the inner end wall in the radial direction of the liquid collecting groove defines the mist spray outlet.

Optionally, the housing cover includes a bottom rim curl for forming the sump.

Optionally, the housing cover includes a housing cover peripheral plate surrounding the centrifugal nozzle and a housing cover annular bottom plate provided with the mist spray port and the liquid collection tank, the housing cover annular bottom plate is an inclined plate having an inner edge end higher than an outer edge end, and the outer edge end is connected to a bottom edge of the housing cover peripheral plate.

Optionally, the annular bottom plate of the housing cover is a retractable plate capable of adjusting the size of the mist spray outlet, and the centrifugal nozzle is configured to be capable of adjusting the spray speed of the mist.

The utility model discloses the second aspect provides an atomizing sprinkler system, atomizing sprinkler system includes liquid reserve tank and foretell atomizing sprinkler, the liquid reserve tank include with the liquid reserve tank liquid outlet that centrifugal spray head links to each other.

Optionally, the liquid reserve tank still include with the liquid reserve tank inlet that the collecting tank links to each other, the liquid reserve tank is along vertical being higher than the collecting tank sets up, atomizing sprinkler system is still including setting up the liquid reserve tank inlet with the water pump in the connecting line of collecting tank.

The utility model discloses the third aspect provides an adopt foretell atomizing sprinkler system's plant protection equipment.

Optionally, the plant protection equipment is ground walking plant protection equipment and comprises an equipment main body and a walking element arranged at the bottom of the equipment main body, and the atomizing and spraying device is arranged on the side and/or below the equipment main body;

or, the plant protection equipment is unmanned vehicles, and unmanned vehicles includes:

a body;

a plurality of arms extending outward from the body in different directions;

the power assembly is arranged at the outer end of the machine arm;

wherein, the atomizing sprinkler sets up in fuselage body, the horn with the below of at least one of power component.

The utility model discloses in, after centrifugal nozzle side direction blowout droplet, the droplet that accords with to spray the particle diameter requirement has less kinetic energy because the quality is less, consequently can slow down more fast under the air resistance effect in order to follow the blowout of droplet blowout mouth to the realization is to spraying of target object. And the big fog that does not conform to and spray the particle size requirement has great kinetic energy because the quality is great, consequently receives the influence of air resistance less and have bigger spraying stroke to can spray on the inside wall of shell cover and down flow to the collecting tank under self action of gravity, and then avoid spouting from the fog droplet blowout mouth, consequently improved the homogeneity that sprays the fog and reduced ineffective spraying, effectively improve the deposit homogeneity and the utilization ratio of spraying promptly. In addition, the boosting fan is arranged, so that the settling speed of the small fog drops can be increased, and the accuracy of directional spraying is improved.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a front view of an atomizing spray device in accordance with an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of the atomizing spray device of FIG. 1;

FIG. 3 is a top plan view of the atomizing spray device of FIG. 1;

FIG. 4 is a bottom view of the atomizing spray device of FIG. 1;

FIG. 5 is a cross-sectional view of one of the mist recovery members of FIG. 1;

FIG. 6 is a bottom view of the mist retriever of FIG. 5;

FIG. 7 is an assembled perspective view of a centrifugal nozzle and booster fan according to an embodiment of the present invention;

FIG. 8 is another assembled perspective view of the centrifugal spray head and booster fan of FIG. 7;

FIG. 9 is a schematic view of an atomizing spray system in accordance with an embodiment of the present invention;

fig. 10 is a schematic view of a ground walking plant protection apparatus according to an embodiment of the present invention;

fig. 11 is a schematic view of an unmanned aerial vehicle according to an embodiment of the present invention.

Description of reference numerals:

100 atomizing sprinkling system 200 ground walking plant protection equipment

300 unmanned aerial vehicle

11 centrifugal nozzle 12 fog droplet recovery part

13 liquid storage tank and 14 water pump

15 big fog drops and 16 small fog drops

17 boost fan

21 device body 22 running element

31 fuselage body 32 horn

33 power assembly

111 nozzle body 112 nozzle rotating shaft

113 spray plate

121 housing cover 122 mist ejection port

123 liquid return port of liquid collecting tank 124

125 bottom edge bead 126 housing cover perimeter panel

127 casing cover ring bottom plate

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The atomizing spray device, the atomizing spray system and the plant protection equipment according to the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1 to 9, a first exemplary embodiment of the present invention provides an atomizing spray device including a centrifugal nozzle 11 for ejecting droplets laterally (or in other directions), and the droplets can be scattered onto a target under the action of gravity after being ejected. According to different operation scenes, parameters such as the rotating speed of the centrifugal nozzle 11 and the like can be correspondingly adjusted to adjust the particle size of the sprayed droplets, and the particle size range of the droplets capable of being captured by the target can be determined according to the capturing capacity of the target on the droplets. Taking operation scenes of field crop pesticide application, fruit tree spraying, mosquito and epidemic prevention and the like, which belong to the field of plant protection as an example, the particle size of fog drops which can be captured by a target object has an upper particle size threshold, namely small fog drops 16 with the particle size not larger than the upper particle size threshold can be captured by the target object and accord with the requirement of spraying particle size, while large fog drops 15 with the particle size larger than the upper particle size threshold cannot be captured by the target object and do not accord with the requirement of spraying particle size, so that the spraying of the large fog drops 15 can be regarded as invalid spraying, namely, the expected spraying effect cannot be obtained, and even adverse effects can be generated under certain conditions.

To reduce the ejection amount of the large mist droplets 15 during actual spraying, the atomizing spray device in the present exemplary embodiment is also provided with a mist droplet recovery member 12 for collecting the large mist droplets 15. Wherein the mist droplet recovery member 12 comprises an outer shroud 121, the outer shroud 121 being circumferentially arranged around the centrifugal nozzle 11 to block an original stroke of the large mist droplets 15 ejected from the centrifugal nozzle 11, so that the large mist droplets 15 can be intercepted to be attached on an inner side wall of the outer shroud 121 or directly fall into the sump 123.

Further, a mist ejection port 122 is formed in the bottom of the housing cover 121, and the mist ejection port 122 may be provided in the center of the bottom of the housing cover 121, for example. The bottom of the housing cover 121 is also provided with a liquid collecting groove 123 located outside the mist ejection port 122. When the mist droplets are ejected from the centrifugal nozzle 11, the mist droplets can be discharged from the centrifugal nozzleThe mixture is rapidly broken into large droplets 15 and small droplets 16 having substantially the same initial velocity according to the kinetic energy theorem (E)_k＝mv²And/2) it can be seen that the droplets 16 meeting the requirement of the spray particle size have smaller kinetic energy due to smaller mass, and therefore can be more quickly decelerated by air resistance to be ejected from the droplet ejection port 122, thereby achieving directional spraying of the target object. The large fog drops 15 which do not meet the requirement of spraying particle size have larger kinetic energy due to larger mass, so the large fog drops are less influenced by air resistance and have larger spraying stroke, can be sprayed on the inner side wall of the outer shell cover 121 and can flow downstream to the liquid collecting tank 123 under the action of gravity or can be directly sprayed into the liquid collecting tank 123, and further can be prevented from being sprayed out from the fog drop spraying port 122, so the uniformity of the sprayed fog drops is improved, ineffective spraying is reduced, and the deposition uniformity and the utilization rate of the sprayed fog are effectively improved.

To plant protection field or other application, the atomizing sprinkler in this example embodiment can effectively reduce the waste of fog drop, and to concrete plant protection operation types such as fruit tree spraying, can avoid leading to forming the medicine spot on the fruit because the adhesion of big fog drop 15 to avoid influencing the selling of fruit and make fruit grower suffer the pressure price in the sales process, guarantee at least can not bring the possibility that causes economic loss for fruit grower at the spraying in-process.

The opening size of the mist droplet ejection port 122 may be determined based on a threshold value for the particle diameter of the mist droplets that can be captured by the target, in order to ensure that all the small mist droplets 16 can be ejected from the mist droplet ejection port 122 as much as possible and that all the large mist droplets 15 can be intercepted by the inner wall of the housing cover 121. Otherwise, if the opening of the mist ejection port 122 is set too large, many large mist droplets 15 can still be ejected from the mist ejection port 122. If the opening of the mist droplet ejection port 122 is set to be too small, it is ensured that all the large mist droplets 15 can be intercepted, but a large number of small mist droplets 16 are inevitably intercepted, and the amount of the small mist droplets 16 to be sprayed is reduced, which reduces the spraying efficiency and affects the spraying effect.

When the opening size of the mist ejection port 122 is determined based on the upper threshold value of the particle diameter, it is usually necessary to take into consideration the actual performance of the centrifugal nozzle 11 (for example, factors such as the rotational speed that can affect the initial speed of ejection of the mist), the vertical distance between the centrifugal nozzle 11 and the bottom end of the housing cover 121 (or can be considered to be equivalent to the mist ejection port 122) (the horizontal stroke of the mist and the falling time), the air resistance in the actual working environment, and the like. However, it should be understood that various specific methods of determining the size of the opening of the mist ejection port 122 based on the upper threshold value of the particle diameter, or other methods of determining the size of the opening of the mist ejection port 122, are within the scope of the present invention.

When the distance between the droplet ejection port 122 and the target object is long, the small droplets 16 ejected from the droplet ejection port 122 are easily affected by wind direction, air resistance, and the like, and thus relatively accurate directional spraying cannot be realized, for example, in the pesticide application process of the plant protection unmanned aerial vehicle, directional spraying sometimes has a deviation.

Therefore, the atomizing spray device in the present exemplary embodiment is further provided with a boosting fan 17, and the boosting fan 17 is used for forming a downward wind field between the centrifugal nozzle 11 and the mist outlet 122 to drive the small mist droplets 16 to be ejected from the mist outlet 122 at an accelerated speed, i.e. to accelerate the settling speed of the small mist droplets 16, to shorten the time required for reaching the target object, to reduce the influence of the external environment (wind direction, air resistance, etc.) on the directional spray, to improve the accuracy of the directional spray, to thereby reduce the waste of the spray and to improve the spray utilization rate.

In one embodiment, the booster fan 17 is an axial fan, and the fan central axis of the booster fan 17, the casing central axis of the casing cover 121, and the nozzle central axis of the centrifugal nozzle 11 may be preferably arranged to coincide with each other. With this arrangement, when the booster fan 17 is rotated, a vertically downward wind field is generated between the centrifugal nozzle 11 and the mist droplet ejection port 122, and the fine mist droplets 16 are accelerated to be settled by the vertically downward boosting wind force.

In one embodiment, referring to fig. 2 to 4, the housing cover 121 includes a fan mounting opening provided at the top center and penetrating in the vertical direction, and the booster fan 17 is mounted in the fan mounting opening and located above the centrifugal nozzle 11. When the atomizing and spraying device is carried under the propeller blade of the unmanned aerial vehicle, the boosting fan 17 and the propeller blade can be driven by the same motor, and under the structure, the propeller blade and the boosting fan 17 rotate synchronously, so that a downward wind field with stronger wind power can be generated, and the settling speed of the small fog drops 16 is higher. Of course, the booster fan 17 may be driven by a separately provided motor.

In one embodiment, referring to fig. 7 and 8, the centrifugal nozzle 11 includes a nozzle body 111, a nozzle rotating shaft 112 extending downward from the nozzle body 111, and a spray plate 113 sleeved on the nozzle rotating shaft 112 for rotatably spraying mist, and a lower portion of the nozzle rotating shaft 112 passes through the spray plate 113 and is connected to the boost fan 17. When the nozzle rotating shaft 112 rotates, the boosting fan 17 and the spray disk 113 can rotate synchronously, and the downward wind field generated by the boosting fan 17 can accelerate the sedimentation of the droplets 16.

In one embodiment, the booster fan 17 includes a central rotating portion and a plurality of blades extending radially outward from the central rotating portion and sequentially spaced in a circumferential direction. To ensure that the droplets 16 in each region in the horizontal direction are accelerated to settle, it is necessary to ensure that the radius of the wind field of the booster fan 17 is sufficiently large, and therefore, it is preferable to set the radial distance between the radially outer ends of the fan blades and the central axis of the fan to be larger than the radius of the spray disk 113. Based on this setting, it is sufficient to ensure that the ejection amount of the mist droplets 16 is sufficiently large, thereby improving the spray utilization rate.

In one embodiment, a liquid return port 124 is provided in the sump 123. Wherein, the liquid return port 124 can be set to be communicated with the liquid storage tank 13 supplying liquid to the centrifugal nozzle 11. Alternatively, the liquid return port 124 may be configured to be communicated with other structures, and at this time, the liquid inlet pipeline of the centrifugal nozzle 11 is respectively communicated with the liquid storage tank 13 and the other structures, that is, the backflow of the liquid return port 124 is independent of the liquid supply of the liquid storage tank 13. Still alternatively, the liquid return port 124 may be provided to communicate directly to the centrifugal nozzle 11 to effect the return flow. Therefore, in this embodiment, by providing the liquid return port 124, the large mist droplets 15 can be recycled, and the utilization rate of the mist can be improved. Of course, in some other embodiments, the liquid return port 124 may not be provided, so that the atomizing and spraying device cannot immediately reuse the collected liquid in the liquid collecting tank 123, but can recover the liquid in the liquid collecting tank 123 after the operation is completed.

In order to increase the liquid reflux speed in the liquid collecting tank 123, the number of the liquid return ports 124 is preferably set to be not less than 3, and the plurality of liquid return ports 124 can be arranged at equal intervals in sequence along the circumferential direction, so that the mist droplets flowing from different areas of the inner side wall of the outer shell cover 121 to the liquid collecting tank 123 can flow to the liquid return ports 124 in a short time. For example, referring to fig. 4, 4 liquid return ports are provided in the sump 123 at regular intervals in the circumferential direction, and the liquid in different regions of the sump 123 can be quickly discharged from the closer liquid return port 124.

In one embodiment, the liquid collecting tank 123 is configured as a bottom edge annular groove of the outer housing 121, and the large mist droplets 15 intercepted by the inner side wall of the outer housing 121 can flow into the liquid collecting tank 123 at the bottom edge of the outer housing 121, and the liquid collecting tank 123 has a liquid collecting cavity extending in a circumferential direction, so that when the liquid returning port 124 is arranged in the liquid collecting tank 123, the backflow time of the mist droplets can be greatly shortened. In addition, the mist spray port 122 can be defined by the inner end wall of the liquid collecting tank 123 in the radial direction, and with the structure, the mist spray port 122 has a large opening, so that the outer contour size of the outer housing cover 121 can be reduced on the premise that the small mist droplets 16 are sprayed and the large mist droplets 15 are recovered, the manufacturing material of the outer housing cover 121 is saved, and the weight of the atomizing and spraying device is reduced, so that the atomizing and spraying device can be conveniently mounted on different equipment.

Further, referring to fig. 2, 4 and 5, the housing cover 121 is provided with a bottom rim bead 125 for forming the sump 123, i.e., the above-mentioned bottom rim annular groove is formed by providing the bottom rim bead 125. Because the bottom edge curling 125 has small processing difficulty, the production cost can be saved, the production efficiency can be improved, and the structure is simple and has aesthetic property.

In one embodiment, the outer shell 121 is a downwardly flaring cone shell, although other shapes, such as a cylindrical shape, may be used in other embodiments.

In one embodiment, referring to fig. 5 and 6, the housing cover 121 includes a housing cover peripheral plate 126 surrounding the centrifugal nozzle 11 and a housing cover annular bottom plate 127 provided with the mist ejection port 122 and the liquid collection tank 123. During the spraying process of the centrifugal nozzle 11, the large mist droplets 15 having a relatively large mass are intercepted by the inner side wall of the housing cover peripheral plate 126, whereas the large mist droplets 15 having a relatively small mass have a short stroke and are therefore intercepted by the inner side wall of the housing cover annular bottom plate 127. More specifically, the housing cover annular bottom plate 127 is a slope plate having an inner edge higher than an outer edge and the outer edge is connected to the bottom edge of the housing cover peripheral plate 126, and the sump is provided at the bottom edge of the housing cover 121. Thus, the large mist droplets 15 intercepted by the inner side wall of the housing cover peripheral panel 126 can flow downstream into the sump 123 under the influence of gravity, while the large mist droplets 15 intercepted by the inner side wall of the housing cover annular floor 127 can flow downstream along the inclined plane into the sump 123, thereby achieving collection and recovery of the large mist droplets 15 from each area.

Further, in order to improve the versatility of the mist droplet recovery member 12, the housing cover annular bottom plate 127 may be provided as a stretchable plate that can adjust the size of the mist droplet ejection port 122. For example, when the upper threshold value of the particle diameter of the mist ejected from the centrifugal nozzle 11 is large, the housing cover annular bottom plate 127 may be contracted outward to expand the opening of the mist ejection port 122, and it is ensured that all the small mist droplets 16 having a particle diameter not larger than the upper threshold value can be ejected from the mist ejection port 122. When the upper threshold of the particle diameter of the mist ejected from the centrifugal nozzle 11 is small, the housing cover annular bottom plate 127 is extended inward to narrow the opening of the mist ejection port 122, so that the large mist 15 is prevented from being ejected from the mist ejection port 122.

The centrifugal nozzle 11 may be provided so as to adjust the speed of ejecting the mist droplets to improve versatility, and for example, the centrifugal nozzle 11 may be provided with a nozzle driving motor for adjusting the speed of ejecting the mist droplets. Based on this arrangement, when the atomizing and spraying device is required to be applied to different operation scenes, the centrifugal nozzle 11 does not need to be replaced, and only the mist recovery member 12 having different sizes of the mist outlet 122 needs to be replaced, and the mist outlet speed of the centrifugal nozzle 11 is adjusted. Further, when the annular bottom plate 127 of the housing cover is also provided as the above-described retractable plate, the centrifugal nozzle 11 and the mist recovery member 12 do not need to be replaced, and the mist ejection speed of the centrifugal nozzle 11 and the opening size of the mist ejection port 122 can be adjusted adaptively.

Referring to fig. 9, a second exemplary embodiment of the present invention provides an atomizing spray system 100, the atomizing spray system 100 including a liquid storage tank 13 and the atomizing spray device described above. Wherein, the liquid storage tank outlet of the liquid storage tank 13 is connected with the centrifugal nozzle 11 for supplying liquid to the centrifugal nozzle 11, and the liquid storage tank inlet of the liquid storage tank 13 can be connected with the liquid collecting tank 123 for guiding the liquid in the liquid collecting tank 123 into the liquid storage tank 13.

In other words, the atomizing spray system 100 in the exemplary embodiment can reuse the large mist droplets 16 collected by the mist droplet recovery unit 12 to reduce the waste of the mist, thereby effectively improving the utilization rate of the mist.

Note that a small portion of the fluid in the reservoir 13 comes from the sump 123 and a large portion of the fluid is added directly from the outside. In one embodiment, all fluid in the reservoir 13 may flow in through the above-mentioned fluid inlet, i.e. a small part of the fluid and a large part of the fluid flow in through the same fluid inlet into the reservoir 13. Alternatively, in another embodiment, a small part of the fluid in the reservoir 13 may flow in from the above-mentioned fluid inlet, and a large part of the fluid may flow in from the other fluid inlet of the reservoir 13, i.e. the small part of the fluid and the large part of the fluid may flow into the reservoir 13 through different fluid inlets, respectively.

In one embodiment, the liquid storage tank 13 is vertically higher than the liquid collection tank 123, and in order to ensure that the liquid in the liquid collection tank 123 can flow back to the liquid storage tank 13, the water pump 14 located in the connection pipeline between the liquid inlet of the liquid storage tank and the liquid collection tank 123 is arranged in the atomization spraying system 100, so that the backflow power is provided.

Of course, the reservoir 13 may be vertically disposed not higher than the sump 123. When the liquid storage tank 13 is arranged along the vertical level in the liquid collection tank 123, the water pump 14 is also required to be arranged in the connecting pipeline between the liquid inlet of the liquid storage tank and the liquid collection tank 123 to provide the reflux power. When the liquid storage tank 13 is vertically arranged below the liquid collecting tank 123, the fluid in the liquid collecting tank 123 can automatically flow back to the liquid storage tank 13 under the action of gravity, so that a water pump does not need to be arranged in a connecting pipeline between a liquid inlet of the liquid storage tank and the liquid collecting tank 123, and the water pump 14 can be arranged to accelerate the backflow speed of the fluid in the pipe.

More specifically, be equipped with water pump 14 in the connecting line of liquid reserve tank liquid outlet and centrifugal nozzle 11 to the fluid flows to centrifugal nozzle 11 with certain velocity of flow in the driving tube, thereby ensures that centrifugal nozzle 11 can normally work and realizes even atomizing.

Furthermore, the third exemplary embodiment of the present invention provides a plant protection device using the above atomization spraying system 100, which has all the advantages of the above atomization spraying device and the atomization spraying system 100, and the description is not repeated here.

In one embodiment, referring to fig. 10, the plant protection apparatus is a ground walking plant protection apparatus 200. The ground-walking plant protection apparatus 200 includes an apparatus body 21 and a walking member 22 (which may be a moving wheel, a crawler, or the like, for example) provided at the bottom of the apparatus body 21. The atomizing spray device may be disposed at the side and/or below the apparatus main body 21, that is, the atomizing spray device may be disposed only at the side of the apparatus main body 21, only below the apparatus main body 21, or both at the side and below the apparatus main body 21. Thus, in the traveling process of the ground walking plant protection equipment 200, the atomizing and spraying device can spray droplets along the way to realize efficient operation.

In another embodiment, referring to fig. 11, the plant protection device is an unmanned aerial vehicle 300. The unmanned aerial vehicle 300 comprises a fuselage body 31, a plurality of arms 32 respectively extending outwards from the fuselage body 31 in different directions, and a power assembly 33 arranged at the outer ends of the arms 32, wherein the power assembly 33 comprises a propeller blade and a motor for driving the propeller blade to rotate. Wherein, the atomizing sprinkler is arranged below at least one of the machine body 31, the machine arm 32 and the power assembly 33. In the flight operation process of the unmanned aerial vehicle 300, the atomizing and spraying device can spray droplets downwards to apply pesticide to field crops, spray fruit trees or kill mosquitoes and prevent diseases and the like.

It should be noted that the atomizing spray device in the first exemplary embodiment of the present invention and the atomizing spray system 100 in the second exemplary embodiment of the present invention may also be applied to other fields except the field of plant protection, for example, may be applied to the fields of spray cleaning, air purification, etc., that is, the specific application field is not limited.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (14)

1. An atomizing spray device, said atomizing spray device comprising:

a centrifugal nozzle (11) capable of ejecting droplets;

the fog droplet recycling device (12) comprises a shell cover (121) which is arranged around the centrifugal nozzle (11) in the circumferential direction, wherein the shell cover (121) comprises a fog droplet ejection port (122) which is positioned at the bottom and penetrates through the shell cover in the vertical direction and a liquid collecting tank (123) which is arranged outside the fog droplet ejection port (122);

and the boosting fan (17) is used for forming a downward wind field between the centrifugal spray head (11) and the fog droplet ejection port (122) so as to drive the fog droplets to be ejected downwards from the fog droplet ejection port (122) in an accelerated manner.

2. Atomizing sprinkler according to claim 1, characterized in that the booster fan (17) is an axial fan, the fan central axis of the booster fan (17), the housing cover central axis of the housing cover (121) and the nozzle central axis of the centrifugal nozzle (11) coinciding with each other.

3. Atomizing spray device according to claim 2, characterized in that the housing cover (121) comprises a vertically through-penetrating fan mounting opening arranged centrally at the top, in which fan mounting opening the booster fan (17) is mounted above the centrifugal nozzle (11).

4. The atomizing spraying device of claim 2, wherein said centrifugal nozzle (11) includes a nozzle body (111), a nozzle rotating shaft (112) extending downward from said nozzle body (111), and a spray plate (113) fitted over said nozzle rotating shaft (112) for rotatably spraying mist, and a lower portion of said nozzle rotating shaft (112) passes through said spray plate (113) and is connected to said booster fan (17).

5. Atomizing sprinkler according to claim 4, characterized in that the booster fan (17) comprises a central rotating part and a plurality of blades extending radially outwards from the central rotating part and arranged circumferentially at intervals in sequence, the radial distance between the radially outer ends of the blades and the central axis of the fan being greater than the radius of the spray disc (113).

6. An atomizing spraying device in accordance with any one of claims 1 to 5, characterized in that a liquid return port (124) is provided in said liquid collecting tank (123) for connecting a liquid storage tank (13) for supplying liquid to said centrifugal nozzle (11).

7. The atomizing spraying device of claim 6, wherein said liquid return port (124) is formed in said liquid collecting tank (123) in a plurality of positions which are arranged in a circumferentially and sequentially spaced manner.

8. An atomizing spray device in accordance with any one of claims 1 to 5, characterized in that said liquid collection channel (123) is an annular groove in the bottom edge of said housing cover (121), the radially inner end wall of said liquid collection channel (123) defining said mist ejection port (122).

9. An atomizing spray device in accordance with any one of claims 1 to 5, wherein said housing cover (121) comprises a housing cover peripheral plate (126) surrounding said centrifugal nozzle (11) and a housing cover annular bottom plate (127) provided with said mist ejection port (122) and said sump (123), said housing cover annular bottom plate (127) is a slant plate having an inner peripheral end higher than an outer peripheral end, and said outer peripheral end is connected to a bottom edge of said housing cover peripheral plate (126).

10. Atomizing spray device according to claim 9, characterized in that said housing cover annular bottom plate (127) is a retractable plate capable of adjusting the size of said mist ejection opening (122), said centrifugal nozzle (11) being arranged so as to be capable of adjusting the speed of ejection of the mist.

11. An atomizing spraying system, characterized in that the atomizing spraying system (100) comprises a liquid storage tank (13) and an atomizing spraying device according to any one of claims 1 to 10, the liquid storage tank (13) comprising a liquid storage tank liquid outlet connected to the centrifugal sprayer (11).

12. The atomizing spraying system of claim 11, characterized in that said liquid storage tank (13) further comprises a liquid storage tank inlet connected to said liquid collection tank (123), said liquid storage tank (13) being disposed vertically higher than said liquid collection tank (123), said atomizing spraying system (100) further comprising a water pump (14) disposed in a connecting line of said liquid storage tank inlet and said liquid collection tank (123).

13. Plant protection equipment, characterized in that it comprises an atomized spraying system (100) according to claim 11 or 12.

14. Plant protection equipment according to claim 13, characterized in that it is a ground-walking plant protection equipment (200) and comprises an equipment body (21) and a walking element (22) arranged at the bottom of the equipment body (21), the atomizing spray device being arranged at the side and/or below the equipment body (21);

alternatively, the plant protection apparatus is an unmanned aerial vehicle (300), the unmanned aerial vehicle (300) comprising:

a body (31);

a plurality of arms (32) extending outward from the body (31) in different directions;

a power assembly (33) arranged at the outer end of the horn (32);

wherein, the atomizing sprinkler is arranged below at least one of the machine body (31), the machine arm (32) and the power assembly (33).

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