CN210846827U - Pneumatic spraying device and plant protection equipment comprising same - Google Patents

Abstract

The utility model discloses a strength atomizer and contain its plant protection equipment, wherein, strength atomizer includes wind channel, wind-force device and nozzle, and the wind channel has relative first end and the second end that sets up, and the wind-force device sets up in the wind channel and be adjacent to first end, and the nozzle is provided with a plurality ofly, and a plurality of nozzles set up on the inner wall in wind channel and be adjacent to the second end, and the nozzle inclines towards the second end, nozzle and the inlet tube intercommunication that is located the wind channel outside. Through the nozzle slope setting with carrying liquid in the wind channel, a plurality of nozzles will carry the liquid reposition of redundant personnel in the wind channel, carry out the strong wind atomizing through wind-force device, and the liquid in the nozzle can receive high velocity air's impact, and then forms less fog droplet particle diameter.

Description

Pneumatic spraying device and plant protection equipment comprising same

Technical Field

The utility model relates to an agricultural equipment technical field especially relates to a strength atomizer and contain its plant protection equipment.

Background

Along with the development of agricultural machinery, the agricultural is realized semi-automatization or even full automatization gradually, and liquid medicine, nutrient solution or clear water are often required to be sprayed on the soil through a spraying device in the current agricultural production process so as to carry out corresponding treatment on crops and ensure that the crops can normally grow.

The spraying device comprises a spray head and a liquid storage tank, wherein the spray head is used for spraying the solution in the liquid storage tank according to the specified requirements. In order to enable crops to better absorb solution, an atomizing nozzle is generally adopted to atomize the solution in the liquid storage tank, so that the particle size of fog drops is smaller. The pressure nozzle is a common atomizing nozzle on the market, the particle size and distribution of the droplets of the nozzle are mainly determined by the pressure of the pipeline, and the particle size of the droplets is reduced along with the increase of the pressure of the pipeline. The pipe pressure is proportional to the flow rate of the pump, and the larger the flow rate of the pump, the larger the pipe pressure is, so that it is difficult to obtain a smaller droplet size under a low flow rate condition. In addition, the nozzle has small outlet diameter, is easy to block and has high requirement on water quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the pneumatic spraying device and the plant protection equipment comprising the same are simple in structure and can obtain smaller droplet particle size under different flow conditions.

To achieve the purpose, the utility model adopts the following technical proposal:

in a first aspect, there is provided a pneumatic atomizer comprising:

the air channel is provided with a first end and a second end which are oppositely arranged;

a wind-powered device disposed within the wind tunnel adjacent the first end;

the nozzle, the nozzle is provided with a plurality ofly, and is a plurality of the nozzle sets up on the inner wall in wind channel and be close to the second end, the nozzle orientation the second end slope, the nozzle with be located the outer inlet tube intercommunication in wind channel.

As a preferable scheme of the pneumatic spraying device, an end face of one end of the nozzle suspended in the air duct is parallel to an axis of the air duct.

As a preferable mode of the pneumatic spraying device, a plurality of the nozzles are annularly arranged along the central axis of the air duct.

As a preferable mode of the pneumatic spraying device, the axes of a plurality of the nozzles intersect at a point on the axis of the air duct.

As a preferable scheme of the pneumatic spraying device, the nozzle is provided with a first end surface connected with the inner wall of the air duct and a second end surface arranged in a suspended manner, and the diameter of the cross section of the nozzle is gradually reduced from the first end surface to the second end surface.

As a preferred scheme of the pneumatic spraying device, the air channel is provided with a first air channel, a second air channel and a third air channel which are sequentially connected, the second air channel is a conical air channel, the large end of the second air channel is connected with the first air channel, the small end of the second air channel is connected with the third air channel, and the nozzle is arranged in the third air channel.

As a preferable scheme of the pneumatic spraying device, the wind power device is arranged in the first air duct.

As a preferable scheme of the pneumatic spraying device, a fixing frame is arranged in the air duct adjacent to the first end, and the wind power device is installed in the air duct through the fixing frame.

As a preferred scheme of the pneumatic spraying device, the first end is provided with an air inlet blocking piece, and a plurality of air inlet holes are formed in the air inlet blocking piece.

As an optimal scheme of the pneumatic spraying device, through holes with the number equal to that of the nozzles are formed in the wall surface of the air channel, one ends of the nozzles are installed in the through holes, the other ends of the nozzles are located in the air channel, the water inlet pipe is annularly arranged outside the air channel, all the through holes are located in the water inlet pipe, a water inlet is formed in the water inlet pipe, and the water inlet is connected with the liquid storage tank through a connecting pipe.

As a preferred scheme of the pneumatic spraying device, the second end is provided with a plane nozzle, the plane nozzle comprises a plurality of water outlets annularly distributed along the axis of the air duct, and the axis of the water outlet of the plane nozzle forms an included angle with the axis of the air duct.

As a preferable scheme of the pneumatic spraying device, the water outlet axis of the plane spray head is vertical to the axis of the air duct.

As an optimal scheme of the pneumatic spraying device, the plane nozzle comprises a first shell, a second shell and baffles, the first shell comprises a connecting pipe and a flange, the connecting pipe is sleeved at the second end, the flange extends towards the outer side of the connecting pipe along the end part of the connecting pipe, the second shell is arranged at one side, away from the connecting pipe, of the flange at intervals, the center of the second shell faces towards the inner protruding flow guide part, which is tapered, of the connecting pipe, a plurality of baffles are annularly arranged between the second shell and the flange along the axis of the connecting pipe, and a flow distribution channel is formed between the adjacent baffles.

As a preferable scheme of the pneumatic spraying device, the second end is provided with a conical spray head, the axis of the conical spray head is overlapped with the axis of the air duct, and the size of one end of the conical spray head, which is far away from the second end, is smaller than that of the second end; or the like, or, alternatively,

the second end is provided with a fan-shaped spray head.

The second aspect provides plant protection equipment, which comprises an equipment body, wherein the pneumatic spraying device is arranged on the equipment body.

The utility model discloses beneficial effect does: through the nozzle slope setting that will carry liquid in the wind channel, the liquid reposition of redundant personnel in a plurality of nozzles will carrying to the wind channel carries out strong wind atomizing through wind-force device, and the liquid in the nozzle can receive high velocity air's impact, and then forms less fog droplet particle diameter.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic perspective view of a pneumatic sprayer according to an embodiment of the present invention.

Fig. 2 is a schematic front view of a pneumatic sprayer according to an embodiment of the present invention.

Fig. 3 is a schematic sectional view a-a of fig. 2.

Fig. 4 is an exploded schematic view of a pneumatic sprayer according to an embodiment of the present invention.

Fig. 5 is a schematic perspective view of a nozzle according to an embodiment of the present invention.

Fig. 6 is a schematic perspective view of a pneumatic sprayer according to another embodiment of the present invention.

Fig. 7 is a schematic structural view of a conical nozzle according to another embodiment of the present invention.

Fig. 8 is a schematic perspective view of a pneumatic sprayer according to another embodiment of the present invention.

Fig. 9 is a schematic structural view of a sector nozzle according to another embodiment of the present invention.

In the figure:

1. an air duct; 11. a first end; 12. a second end; 13. a first air duct; 14. a second air duct; 15. a third air duct; 16. a through hole; 2. a wind power plant; 21. a power motor; 22. an impeller; 3. a nozzle; 31. a first end face; 32. a second end face; 4. a water inlet pipe; 41. a water inlet; 5. a fixed mount; 6. an air inlet baffle plate; 61. an air inlet hole; 62. a baffle plate body; 63. a connecting strip; 7. a planar showerhead; 71. a water outlet; 72. a first housing; 73. a second housing; 74. a baffle plate; 8. a conical spray head; 9. a fan-shaped spray head; 10. a communication pipe is provided.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 9, the utility model discloses pneumatic spraying device can be used to plant protection equipment such as unmanned aerial vehicle, agricultural tractor, and pneumatic spraying device main function turns into the less droplet of particle diameter with liquid and sprays soil or plant on, can spray clear water, liquid medicine, nutrient solution etc. to guarantee plant normal growth.

The utility model discloses pneumatic spraying device includes wind channel 1, wind power device 2 and nozzle 3, wherein, wind channel 1 has relative first end 11 and the second end 12 that sets up, wind power device 2 sets up in the wind channel 1 and be close to first end 11, nozzle 3 is provided with a plurality ofly, and is a plurality of nozzle 3 sets up on the inner wall in wind channel 1 and be close to second end 12, nozzle 3 orientation the second end 12 slope, nozzle 3 with be located the outer inlet tube 4 intercommunication in wind channel 1. Through the nozzle 3 slope setting that will carry liquid in wind channel 1, a plurality of nozzles 3 will carry the liquid reposition of redundant personnel in the wind channel 1, carry out the strong wind atomizing through wind-force device 2, the liquid in the nozzle 3 can receive the impact of high velocity air, and then forms less fog drop particle diameter.

The working principle of the pneumatic spraying device is as follows: the high-speed airflow can extrude and shear the liquid, so that the liquid is torn from the liquid flow form into a liquid film and a liquid filament form and is instantly broken into fine fog drop groups, and then the high-speed airflow can force a large number of fog drop groups to directionally fly out from the position of the spray head.

The end face of one end of the nozzle 3 suspended in the air duct 1 is parallel to the axis of the air duct 1. The design can enable the liquid in the nozzle 3 to be impacted by high-speed airflow to the maximum extent, and further smaller fog drop particle size is formed.

In this embodiment, the air duct 1 has a first air duct 13, a second air duct 14 and a third air duct 15 that are connected in sequence, the second air duct 14 is a tapered air duct, a large end of the second air duct 14 is connected to the first air duct 13, a small end of the second air duct 14 is connected to the third air duct 15, and the nozzle 3 is disposed in the third air duct 15. Through setting up wind channel 1 to the reducing pipe structure, can make the wind energy that enters into in the third wind channel 15 can be because the cross-sectional dimension diminishes and the speed-up forms high-speed air current, and then the effort to the liquid of nozzle 3 spun that is located in third wind channel 15 is strengthened for the liquid of nozzle 3 spun can be differentiated into the fog drop of littleer particle size.

Specifically, the first air duct 13 and the third air duct 15 are both circular air ducts. In other embodiments, the air duct 1 may be directly configured as a tapered air duct, that is, the first end 11 is a large end of the air duct 1, and the second end 12 is a small end of the air duct 1. The air duct 1 is not limited to a circular variable cross-section tubular structure or a tapered structure, and may be a square variable cross-section tubular structure or the like that can achieve an enhancement in wind speed.

In the present embodiment, the wind power device 2 is disposed in the first wind tunnel 13. By arranging the wind power device 2 in the first air channel 13, the wind power device 2 can be away from the nozzle 3 by a certain distance, so that liquid is prevented from impacting and sputtering on the wind power device 2 when high-speed airflow is used for differentiating liquid, the surface of the wind power device 2 is ensured not to be wetted by the liquid, and the first air channel 13 is large in size, so that the wind power device 2 is convenient to mount.

In an embodiment, a fixing frame 5 is disposed in the air duct 1 adjacent to the first end 11, and the wind power device 2 is installed in the air duct 1 through the fixing frame 5. Specifically, the fixed frame 5 is disposed inside the first air duct 13. The arrangement of the fixing frame 5 can avoid directly installing the wind power device 2 on the inner wall of the air duct 1, and ensure that the wind distributed in the section of the air duct 1 is uniform.

In this embodiment, a fixing hole is provided in the middle of the fixing frame 5, the wind power device 2 includes a power motor 21 and an impeller 22, the power motor 21 is fixed in the fixing hole, the output shaft of the power motor 21 is located on one side of the fixing frame 5 close to the nozzle 3, and the impeller 22 is mounted on the output shaft of the power motor 21.

The fixing frame 5 can be fixed in the air duct 1 in a non-detachable mode, and can also be fixed in the air duct 1 in a detachable mode. When the non-detachable mode is fixed, can be with the welding of mount 5 in wind channel 1, perhaps mould plastics wind channel 1 and mount 5 as an organic whole, and when the detachable mode is fixed, can select for use glue, magnetism to inhale, fastener etc. and fix.

In order to prevent external foreign matters from entering the air duct 1, an air inlet baffle 6 is disposed at the first end 11 of the air duct 1, and a plurality of air inlet holes 61 are formed in the air inlet baffle 6.

Specifically, the air inlet baffle 6 comprises a baffle body 62 located at the center of the first end 11, a plurality of connecting strips 63 are annularly arranged on the outer periphery of the baffle body 62, one ends of the connecting strips 63 far away from the baffle body 62 are connected with the inner wall of the first end 11 of the air duct 1, and air inlet holes 61 are formed between adjacent connecting strips 63. Of course, the air inlet baffle 6 is not limited to the above structure, and may be other structures, for example, the air inlet baffle 6 of a grid plate structure.

In one embodiment, a plurality of nozzles 3 are annularly arranged along the central axis of the air duct 1. The arrangement can ensure that the plurality of nozzles 3 are distributed on the same plane vertical to the axis of the air duct 1, so that the liquid sprayed by the plurality of nozzles 3 can collide as much as possible, and the particle size of the fog drops of the liquid is reduced.

Preferably, the axes of a plurality of the nozzles 3 intersect at a point on the axis of the air chute 1. When the flow rate of the liquid in the nozzle 3 is large, a plurality of strands of liquid collide with each other and are exploded, the contact area between the liquid and the high-speed airflow is increased, and mist droplets with smaller particle sizes can be formed.

Specifically, the nozzle 3 has a first end face 31 connected to the inner wall of the air duct 1 and a second end face 32 disposed in the air, and the cross-sectional diameter of the nozzle 3 decreases gradually from the first end face 31 to the second end face 32. The design can effectively prevent strong wind of the wind power device 2 from flowing backward into the nozzle 3.

In one embodiment, the wall surface of the air duct 1 is provided with through holes 16, the number of which is equal to that of the nozzles 3, one ends of the nozzles 3 are installed in the through holes 16, the other ends of the nozzles are located in the air duct 1, the water inlet pipe 4 is annularly arranged outside the air duct 1, all the through holes 16 are located in the water inlet pipe 4, the water inlet pipe 4 is provided with a water inlet 41, and the water inlet 41 is connected with a liquid storage tank (not shown in the figure) through a communication pipe 10. Through setting up an annular inlet tube 4, can be simultaneously to all nozzles 3 transport liquid, simplified the liquid transport structure of all nozzles 3 on wind channel 1, and then reduced manufacturing and material cost. Of course, the water inlet pipe 4 is not limited to be arranged on the air duct 1 in a ring shape, and one water inlet pipe 4 may be arranged for each or adjacent ones.

As shown in fig. 1 to 5, in this embodiment, a planar nozzle 7 is disposed at the second end 12 of the air duct 1, the planar nozzle 7 includes a plurality of water outlets 71 annularly distributed along an axis of the air duct 1, and an angle between a water outlet axis of the planar nozzle 7 and the axis of the air duct 1 is formed. By providing this planar nozzle 7 at the second end 12, the direction of movement of the droplets can be changed by the planar nozzle 7.

Specifically, the water outlet axis of the plane spray head 7 is perpendicular to the axis of the air duct 1.

In this embodiment, the planar nozzle 7 includes a first housing 72, a second housing 73 and a baffle 74, the first housing 72 includes a connecting pipe sleeved at the second end 12 and a flange extending along the end of the connecting pipe toward the outside of the connecting pipe, the second housing 73 is disposed at an interval on one side of the flange away from the connecting pipe, the center of the second housing 73 is disposed toward the inside of the connecting pipe in a protruding manner, a tapered flow guiding portion is formed, a plurality of baffles 74 are annularly disposed between the second housing 73 and the flange along the axis of the connecting pipe, a flow dividing channel is formed between adjacent baffles 74, and the water outlet 71 is located at the end of the flow dividing channel.

Referring to fig. 6 to 9, of course, the second end 12 of the air duct 1 is not limited to the installation of the planar nozzle 7, and a cone-shaped nozzle 8 or a fan-shaped nozzle 9 may be installed alternatively, specifically, as shown in fig. 6 and 7, the second end 12 is provided with the cone-shaped nozzle 8, the axis of the cone-shaped nozzle 8 is coincident with the axis of the air duct 1, the size of the end of the cone-shaped nozzle 8 far from the second end 12 is smaller than that of the second end 12, and the cone-shaped nozzle 8 can form a cone-shaped spray. As shown in fig. 8 and 9, the second end 12 is provided with a fan spray head 9 to form a fan spray.

The embodiment of the utility model provides a plant protection equipment is still provided, including the equipment body, be provided with above arbitrary embodiment on the equipment body pneumatic spraying device, pneumatic spraying device's structure here is no longer repeated.

In the description herein, it is to be understood that the terms "upper" and the like are used in a descriptive sense and based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, configuration and operation in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of "an embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (15)

1. A pneumatic atomizer, comprising:

the air channel is provided with a first end and a second end which are oppositely arranged;

a wind-powered device disposed within the wind tunnel adjacent the first end;

the nozzle, the nozzle is provided with a plurality ofly, and is a plurality of the nozzle sets up on the inner wall in wind channel and be close to the second end, the nozzle orientation the second end slope, the nozzle with be located the outer inlet tube intercommunication in wind channel.

2. The pneumatic atomizer of claim 1, wherein the end surface of said nozzle suspended in said air channel is parallel to the axis of said air channel.

3. A pneumatic atomizer according to claim 1, wherein a plurality of said nozzles are arranged annularly along a central axis of said air channel.

4. A pneumatic atomizer according to claim 3, wherein the axes of a plurality of said nozzles intersect at a point on the axis of said air channel.

5. The pneumatic atomizer of claim 1, wherein said nozzle has a first end surface connected to an inner wall of said air channel and a second end surface disposed in a floating manner, and said nozzle has a cross-sectional diameter gradually decreasing from said first end surface toward said second end surface.

6. The pneumatic spraying device according to claim 1, wherein the air duct has a first air duct, a second air duct and a third air duct connected in sequence, the second air duct is a tapered air duct, the large end of the second air duct is connected to the first air duct, the small end of the second air duct is connected to the third air duct, and the nozzle is disposed in the third air duct.

7. The pneumatic atomizer of claim 6, wherein said pneumatic means is disposed within said first air channel.

8. A pneumatic atomizer according to any one of claims 1 to 7, wherein a mounting bracket is provided in said air channel adjacent to said first end, said pneumatic device being mounted in said air channel by said mounting bracket.

9. A pneumatic atomizer according to any one of claims 1 to 7, wherein said first end is provided with an air inlet baffle, said air inlet baffle having a plurality of air inlet apertures formed therein.

10. A pneumatic spraying device according to any one of claims 1 to 7, wherein the wall of the air duct is provided with a number of through holes equal to the number of nozzles, one end of the nozzles are mounted in the through holes, the other end of the nozzles is located in the air duct, the water inlet pipe is annularly arranged outside the air duct, all the through holes are located in the water inlet pipe, the water inlet pipe is provided with a water inlet, and the water inlet is connected with a liquid storage tank through a connecting pipe.

11. A pneumatic spraying device according to any one of claims 1 to 7, wherein the second end is provided with a planar nozzle comprising a plurality of water outlets annularly distributed along the axis of the air duct, and the axis of the water outlet of the planar nozzle is arranged at an angle to the axis of the air duct.

12. The pneumatic atomizer of claim 11, wherein the axis of the outlet of said planar nozzle is perpendicular to the axis of said air channel.

13. The pneumatic atomizer of claim 11, wherein said planar nozzle comprises a first housing, a second housing and a baffle, said first housing comprises a connecting tube sleeved on said second end and a flange extending along the end of said connecting tube towards the outside of said connecting tube, said second housing is spaced apart from said flange on the side away from said connecting tube, the center of said second housing is provided with a conical flow guide portion protruding towards said connecting tube, a plurality of said baffles are annularly arranged along the axis of said connecting tube between said second housing and said flange, and a flow dividing channel is formed between adjacent said baffles.

14. A pneumatic atomizer according to any one of claims 1 to 7, wherein said second end is provided with a conical nozzle having an axis coincident with the axis of said air channel, the dimension of the end of said conical nozzle remote from said second end being smaller than the dimension of said second end; or the like, or, alternatively,

the second end is provided with a fan-shaped spray head.

15. Plant protection equipment, comprising an equipment body, characterized in that the equipment body is provided with a pneumatic spraying device according to any one of claims 1 to 14.

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