CN211064776U - Sprinkler and plant protection robot - Google Patents

Abstract

The application provides a sprinkler, its characterized in that includes: a body portion having at least one mounting plate extending laterally; the guide pipe is carried on the mounting plate and consists of a hard tubular part, one end of the guide pipe is provided with a water inlet, and the pipe body is provided with a plurality of interfaces for connecting the nozzles; and a press block for fixing the guide pipe, having a fixing groove formed on a bottom surface thereof to be matched with a cross section of the pipe body of the guide pipe, so that the press block crosses the guide pipe in a direction perpendicular to an extending direction of the guide pipe, extends outward from both ends of the fixing groove to form a fitting surface, and is fixed to the mounting plate through a fixing hole provided on the fitting surface. The application still provides a plant protection robot, has as above sprinkler. The utility model discloses device stable in structure is applicable to the irrigation operation of spraying of large tracts of land, sprays the covering surface extensively, and the liquid medicine sprays evenly, convertible various function of spouting, and work efficiency is high for warmhouse booth's environment operation is stable.

Description

Sprinkler and plant protection robot

Technical Field

The invention relates to an agricultural irrigation device, in particular to a spraying device of a plant protection robot and the plant protection robot.

Background

In modern agricultural production, machines for planting various crops can be applied to the operation of preventing and treating plant diseases and insect pests, the labor intensity is reduced, the labor is saved, and the working efficiency is improved. The backpack type small-sized spraying plant protection machine, the driving plant protection machine, the atomizing machine and the like in the existing plant protection machinery still operate on site manually, so that the labor is consumed, and the sprayed pesticide is harmful to the health of human bodies; the ground walking type plant protection machine is easy to topple over when walking in the field and treading on the agricultural plants; the unmanned remote control plant protection aircraft has short endurance, small use load and small medicine box medicine-loading amount, is complex in taking-off and lifting operation during working in a greenhouse with low overhead height, and is difficult to flexibly control the flying height according to the terrain. The plant protection machines of the types only have a single spraying function, and are difficult to simultaneously monitor the growth environments of crops such as temperature, humidity, illumination, air content and the like; the problems of small liquid coverage and uneven spraying generally exist; after a certain weight of liquid is loaded, the stability of the device is not high; the machine can not automatically record the operation information such as spraying amount, movement position and the like, and adjust the spraying work and the movement track.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

Therefore, an object of the present invention is to provide a spraying device, which can realize large-area irrigation and uniform spraying of liquid medicine.

Another object of the utility model is to provide a plant protection robot, device stable in structure can apply to the greenhouse internal environment in a flexible way, and work efficiency is high.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a sprinkler characterized by comprising: a body portion having at least one mounting plate extending laterally; the guide pipe is carried on the mounting plate and consists of a hard tubular part, one end of the guide pipe is provided with a water inlet, and the pipe body is provided with a plurality of interfaces for connecting the nozzles; and a press block for fixing the guide pipe, having a fixing groove formed on a bottom surface thereof to be matched with a cross section of the pipe body of the guide pipe, so that the press block crosses the guide pipe in a direction perpendicular to an extending direction of the guide pipe, extends outward from both ends of the fixing groove to form a fitting surface, and is fixed to the mounting plate through a fixing hole provided on the fitting surface.

Preferably, the pipe includes annular conduit portion and with the straight tube portion that annular conduit portion connects, straight tube portion one end sets up the water inlet, annular conduit fixes to become integrative connect in the other end of straight tube portion, annular conduit portion with straight tube portion all is provided with the interface that is used for connecting the nozzle.

The pressure block avoids the interface and fixes the guide pipe and the mounting plate at the straight pipe part.

Preferably, the body portion has an upper cover and a lower cover, and the outer circumferential surface is a cylindrical can body.

The main body further has a holder provided on an outer peripheral side of the tank body, and includes: compressing an upper support ring of the upper cover; a lower support ring pressing the lower cover; and the plurality of supporting rods are arranged between the upper supporting ring and the lower supporting ring to enable the upper supporting ring and the lower supporting ring to clamp the tank body.

The side wings are arranged in pairs, are arranged on the bracket and are arranged in axial symmetry relative to the center of the tank body; and a suspension rod for suspending the tank body.

The side wings are provided with pumps which are connected with water outlets arranged on the lower cover of the tank body through pipelines, and liquid is led out from the tank body and sprayed to the outer sides of the side wings by pumping.

Preferably, the hanger bar passes through a hole in the center of the upper cover to reach the center of the lower cover, the center of the lower cover is formed with a hole matching the inner diameter of the hanger bar, the lower end of the hanger bar is welded to the center of the lower cover from the inner side and the outer side of the lower end of the hanger bar, and the plate used for the lower cover is thicker than the plate used for the upper cover and the side wall of the tank body.

Preferably, a drain pipe is formed to extend downward from the lower cover, and a flange for connecting a drain valve is formed at a lower end of the drain pipe.

Preferably, a side wing fixing plate is arranged between adjacent support rods, a side wing connecting plate is arranged at the base of the side wing, and the side wing and the tank body are relatively fixed by being connected and fixed with the side wing fixing plate.

And a side wing supporting plate is arranged on the lower surface of the side wing fixing plate and is fixedly connected with the side wing connecting plate.

Preferably, a connecting plate for fixedly hanging the tank body on an external device is provided at an upper end of the suspension rod, a hole matched with an inner diameter of the suspension rod is formed at a center of the connecting plate, and the suspension rod and the connecting plate are welded together from an inner side and an outer side of the upper end of the suspension rod.

Preferably, a water inlet is formed to extend upward from the upper cover.

In order to achieve the above object, according to another aspect of the present invention, there is provided a plant protection robot having the spraying device as described above, the plant protection robot having medicine boxes, the spraying device being symmetrically disposed at both ends of the medicine boxes.

Preferably, the water inlet is connected with a liquid conveying pipe and/or a liquid pump which are installed on the medicine box, liquid is introduced into the spraying device, and the spraying irrigation operation is realized through a nozzle.

Preferably, the spraying device is arranged on a suspended running mechanism through the suspension rod, so that large-range spraying irrigation is realized.

The utility model provides a sprinkler and plant protection robot, device stable in structure is applicable to the irrigation operation of spraying of large tracts of land, sprays the covering face extensively, and the liquid medicine sprays evenly, convertible various function of spouting, and work efficiency is high for warmhouse booth's environment operation is stable.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a body part structure view according to an embodiment of the present invention;

fig. 2 shows a tank structure diagram according to an embodiment of the present invention;

fig. 3 shows a diagram of a catheter structure according to an embodiment of the invention;

FIG. 4 shows a block diagram according to an embodiment of the present invention;

FIG. 5 illustrates a mounting plate structure diagram according to an embodiment of the present invention;

fig. 6 shows a perspective view of a plant protection robot according to an embodiment of the present invention;

fig. 7 shows a front view of a plant protection robot according to an embodiment of the present invention.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Fig. 1 is a structural view of a body part of an embodiment of the present invention, and a spraying device is symmetrically disposed at two ends of a tank body of the body part 300. The body portion 300 includes a canister 320, a support 330, wings 340, a hanger 350, and a pump 360. The pump 360 is symmetrically installed on the wing 340 for delivering the liquid medicine stored in the tank 320 and spraying the liquid medicine to the outside of the wing 340. The wings 340 are fixed to the brackets 330 and connected to the can 320. For the body part using the hoisting structure, the tank body 320 needs to contain water or blending liquid medicine with enough weight, and the stability of the tank body structure has a decisive significance for the working efficiency of the body part.

Fig. 2 is a structural view of a tank body according to an embodiment of the present invention, the tank body 320 has an upper cover 321 and a lower cover 322, which respectively cover the upper end and the lower end of the tank body, and the outer periphery of the sidewall of the tank body 320 is cylindrical, and has a thin wall and a sealed hollow structure. The upper cover 321 is extended upward to form a water inlet 323, and the upper part of the water inlet 323 is in a bucket shape, and the lower part of the water inlet 323 is in a tube shape and is vertically arranged on the upper cover 321. The upper cover 321 is provided with a water inlet hole corresponding to the water inlet 323, and the diameter of the water inlet hole is the same as the outer diameter of the lower part. The lower cover 322 is extended downward to form a water outlet 324. The water or the liquid medicine is poured into the tank body 320 from the water inlet 323 to be stored for standby, and the water outlet 324 of the lower cover 322 delivers the water or the liquid medicine to the pump 360 installed on the side wing 340. The joint of each part of the tank body 320 is fully welded up and down, inside and outside, so that the tank body can contain water or liquid medicine with enough weight. Agricultural electric appliance elements can be arranged on the upper cover 321 or the lower cover 322, for example, an ozone generator is arranged on the upper cover 321, ozone generated by the ozone generator is dissolved in water in the tank body 320 through an aerator and then is sprayed on crops; a liquid level gauge is provided at the lower cap 322 to monitor the liquid level in the tank 320.

The bracket 330 is disposed on the outer circumferential side of the tank 320, and includes an upper support ring 331, a lower support ring 332, a bracket connection side plate 333, and a plurality of struts 334. The upper support ring 331 compresses the upper cover 321 of the tank body 320, a plurality of screw holes are equidistantly arranged on the edge side of the upper cover 321 in the circumferential direction, a connecting line of two adjacent screw holes and the central point of the upper cover 321 forms an angle of 60 degrees, the screw holes with the same size and the same number as the upper cover 321 are correspondingly arranged on the edge ring of the upper support ring 331, and the upper support ring 331 is connected with the upper cover 321 through screws and is fastened with the tank body 320. Elastic washers are interposed between the upper support ring 331 and the upper cover 321, and between the lower support ring 332 and the lower cover 322.

The distance from the edge ring of the upper support ring 331 to the central point is greater than the screw hole connected with the upper cover 321, a round hole for fixing the support rod 334 is arranged, the round holes with the same size are oppositely arranged at the same position of the edge ring of the lower support ring 332, and the inner diameters of the upper support ring 331 and the lower support ring 332 are matched with the outer diameter of the support rod 334. The struts 334 are arranged between the upper support ring 331 and the lower support ring 332, so that the upper support ring 331 and the lower support ring 332 clamp the tank body 320, and the struts 334 are arranged at equal intervals, so that the stability of the whole device is improved.

Two support connecting side plates 333 are provided between two adjacent support rods 334 at both ends of the tank body which are axisymmetrical with respect to the center of the tank body, the support connecting side plates 333 are vertically erected between the upper support ring 331 and the lower support ring 332, and the support connecting side plates 333 have curved surfaces which have the same degree of curvature as the peripheries of the upper and lower support rings 331, 332. The bracket coupling side plate 333 is used to couple the mounting plate 310 and the bracket 330 mounted to the outside of the can body. The bracket 330 connects the mounting plate 310 for spraying and the tank for storing the liquid medicine into a whole, and the whole structure of the body part is stable, the mounting operation is simple, and the whole structure layout is compact.

As shown in fig. 1, the wings 340 are disposed at both ends of the sidewall of the can body 320 in pairs, and are disposed in axial symmetry with respect to the center of the can body 320. The side wing fixing plate 341 of the side wing 340 is perpendicular to the side wing connecting plate 342, the side wing connecting plate 342 is a plate with a curved surface, the upper edge of the side wing fixing plate 341 is arc-shaped, and the bending degree of the side edge of the upper edge is consistent with that of the side wing connecting plate 342. Two flank supporting plates 343 weld at the lower extreme of flank fixed plate 341 to be connected with flank connecting plate 342, with the junction welded fastening of flank fixed plate 341, flank connecting plate 342, improve flank 340 stability. In this embodiment, the side wing supporting plate 343 is a plate having a right triangle shape, and may have a bar-shaped plate, a bar-shaped pipe, or the like according to the strength requirement, or may be reduced or increased in number.

A wing connection plate 342 is provided at the base of the wing 340, the wing connection plate 342 is fixed to the outer side of the bracket connection side plate 333 by a screw, and a flat washer is interposed between the screw and the bracket connection side plate 333, so that the two wing fixing plates 341 are relatively fixed to both ends of the can body 320.

In this embodiment, the side wing fixing plate 341 is a plate with an axisymmetric structure on the plane, and the side wing connecting plates 343 at the left and right ends have symmetric outward expansions, and the bending part is arc-shaped. Alternatively, other structures of the wing fixing plate 341 may be adopted according to the need, for example, an asymmetric structure may be adopted, or various structures such as a circular structure, a tubular structure, a multilayer structure, and the like may be adopted. The wing fixing plates 341 are installed at both ends of the tank body 320, and the body 300 has a symmetrical structure and high stability. The side wing fixing plate 341 extends from the center of the body 300 to both sides, and the spraying coverage is large, and the spraying efficiency is high. The side wing fixing plates 341 on both sides form a spraying plane to uniformly spray the liquid medicine, and the side wing fixing plates 410 can be provided with platforms for installing various types of spray pipes, so that various crop irrigation modes can be realized.

The pumps 360 are symmetrically installed on the installation plate 310, and are used for conveying the liquid medicine stored in the tank body in the center of the medicine box and spraying the liquid medicine to the outer side of the installation plate 310. The pipeline 361 conveys the liquid medicine in the tank 320 to the pump 360, and the joint is in butt joint with the water outlet 324 of the lower cover 322, preferably, the flared adjustable direction end tee joint is adopted in the embodiment, the joint is connected with the pump 360 through a conduit, and an elbow is connected between each conduit, so that the angle and the direction of each conduit can be adjusted. The side wings 340 are provided with spraying devices connected with a pump 360, and liquid is led out from the tank body 320 and is sent by the pump 360 to be sprayed to the outer sides of the side wings 340. The embodiment adopts the diaphragm pump, controls the pressure of the liquid medicine output by the pump 360, and can convert various spraying irrigation modes.

As shown in fig. 2, a drain pipe 325 is formed to extend downward from the lower cap 322, and a flange for connecting a drain valve is formed at a lower end of the drain pipe to discharge the chemical solution in the tank 320.

A hanger 350 is provided at the center of the can 320 in the radial direction for suspending the can 320. The hanger bar 350 passes through a hole of the center of the upper cover 321 matching with the outer diameter of the hanger bar 350 to reach the center of the lower cover 322, a hole matching with the inner diameter of the hanger bar 350 is formed at the center of the lower cover 322, the lower end of the hanger bar 350 is welded to the center of the lower cover 322 from the inner side and the outer side of the lower end of the hanger bar 350, and the hole at the center of the upper cover 321 is welded to the outer side of the hanger bar 350. The lower cover 322 is made of a thicker plate than the upper cover 321 and the sidewall of the can 320, so that the hanger bar 350 can bear the weight of the integral body 300. The suspender 350 penetrates through the tank 320, and the lower end of the suspender is fixed on the lower cover 322, so that the whole bearing strength of the plant protection robot 400 is improved, and the suspender can bear liquid medicine with enough weight. The upper end of the suspender 350 can be connected with a walking mechanism, the joint of the suspender 350 and the tank body 320 is fully welded, and the running stability of the device is high.

A connecting plate 351 for fixedly hanging the tank to an external device is provided at the upper end of the hanger bar 350, a hole matching the inner diameter of the hanger bar 350 is formed at the center of the connecting plate 351, and the hanger bar 350 and the connecting plate 351 are integrally welded from the inner side and the outer side of the upper end of the hanger bar 350.

Fig. 3 is a structural diagram of a conduit according to an embodiment of the present invention, the conduit 100 is formed by connecting two pipelines of an annular conduit portion 111 and a straight conduit portion 112, the annular conduit portion 111 and the straight conduit portion 112 are respectively provided with a plurality of connectors 113 for connecting nozzles 120 for spraying pesticides, one end of the straight conduit portion 112 forms a water inlet 130 for introducing liquid into the conduit 100, the other end of the straight conduit portion 112 is connected and conducted with a conduit body of the annular conduit portion 111 and is fixed into a whole, and one part of a side wall of the conduit body of the annular conduit portion 111 is provided with an opening corresponding to a pipe diameter of the straight conduit portion 112. In this embodiment, the straight pipe portion 112 is a vertical hollow pipe, and the annular duct portion 111 is an annular hollow pipe having an opening at one side wall thereof.

The pipe body side wall of the pipe 100 is provided with a nozzle 120 which is provided on the outer side surface of the annular pipe portion 111 and at least one of the left and right sides of the straight pipe portion 112. The nozzle 120 is connected to the conduit 100 by means of a mouthpiece 113 arranged at a corresponding position of the conduit 100, the mouthpiece 113 being dimensioned to fit the nozzle 120. The interface 113 may be screwed to the nozzle 120 through a threaded opening, or a snap fit may be provided inside the interface 113 to engage and fix the nozzle 120 to the conduit 100.

One end of the straight pipe part 112 is a water inlet 130, the water inlet 130 is connected with a sealing nut interface for connecting with an external liquid conveying pipe and/or a liquid pump installed on the plant protection robot, in the embodiment, a spherical sealing loose nut interface is selected for use, the sealing performance is good when the spherical sealing loose nut interface is connected with other pipelines, and liquid medicine is not easy to seep. The liquid pump can change output pressure, thereby converting various spraying functions and meeting various spraying requirements.

Fig. 4 is a block structure diagram of an embodiment of the present invention, and fig. 5 is a mounting plate structure diagram of an embodiment of the present invention. The guide tube 100 is fixed to a mounting plate 310 of the body 300 by a pressure block 200, the pressure block 200 is provided at a position where the straight tube portion 112 is not provided with the nozzle 120, and the mounting plate 310 extends in the lateral direction of the body 300 and has at least one. The pressing block 200 has a fixing groove 210, the bottom surface of the fixing groove 210 matches with the radial section of the tube body of the straight tube part 112, and the upper end extends vertically.

Two end points of the fixing groove 210 extend outward to form a matching surface 220, and the matching surfaces 220 are symmetrically arranged at two ends of the fixing groove 210 and perpendicular to the upper end of the fixing groove 210. The fitting surface 220 has a fixing hole 230a, the mounting plate 310 has a fixing hole 230b corresponding to the fixing hole 230a, the fixing recess 210 of the pressing block 200 is disposed across the straight tube portion 112 in a direction perpendicular to the extending direction of the straight tube portion 112, and the guide tube 100 is stably fixed to the mounting plate 310 by connecting the fixing hole 230a of the fitting surface 220 and the fixing hole 230b of the mounting plate 310 with screws. The mounting plate 310 may be a plate material having various shapes with a fixing hole 230b at the center. The mounting plate 310 is screwed with the body 300 through a connecting plate; alternatively, the mounting plate 310 may be provided with a snap on its side and snap into a corresponding snap provided on the main body 300.

The mounting plate 310 can be connected with various plant protection robots for use, the mounting plate 310 is mounted at two ends of the body part 300, the whole structure of the device is symmetrical, and the stability is high. The mounting plate 310 extends from the center of the body 300 to both sides, and the spraying coverage is large, and the spraying efficiency is high. The mounting plates 310 on both sides form a spraying plane to uniformly spray the liquid medicine. Various detection elements, sensor devices or collectors, such as an illumination sensor, a temperature and humidity sensor, a carbon dioxide sensor, an ozone sensor and the like, can be mounted on the mounting plate 310 provided with a platform to collect corresponding crop growth environment data.

The mounting plates 310 may be mounted on both upper and lower sides of the wing fixing plate 341, or may be fixed to the outer circumferential surface of the can 320 as the wing fixing plate 341. In the present embodiment, the mounting plates 310 are wing fixing plates 341, which are provided in pairs at both ends of the outer circumferential surface of the can 320 and are disposed in axial symmetry with respect to the center of the can 320.

The spraying device components such as the guide pipe 100, the pressing block 200, the body part 310 and the like are subjected to phosphating process treatment, so that the components are prevented from rusting and being corroded by liquid medicine in a damp environment in the greenhouse.

Fig. 6 is a perspective view of a plant protection robot according to an embodiment of the present invention, and fig. 7 is a front view of the plant protection robot according to an embodiment of the present invention. The plant protection robot 400 has a medicine box, in this embodiment, the medicine box is the body portion 300, the spraying devices are symmetrically arranged at two ends of the medicine box, the water inlet 130 is connected with a liquid conveying pipe and/or a pump 360 installed on the medicine box, liquid medicine is introduced into the spraying devices, the spraying irrigation operation is completed through the nozzles 120, and the spraying and the liquid medicine storage are integrated.

The body part 300 is externally provided with the cover body 410, the axial flow fan 430 is arranged at the lower part of the body part, heated gas is blown into the plant protection robot 400, water vapor generated when the medicine tank 320 in the cover body 410 is welded to each part can be taken away quickly, and acid-base corrosion and corrosion are reduced effectively. The upper portion of the enclosure 410 is provided with ventilation windows to facilitate ventilation between the enclosure and the medication box.

The plant protection robot 400 is provided with the spraying device arranged on the suspended running mechanism 420 through the suspender 350, the connecting plate 351 on the upper section of the suspender 350 is fixedly connected with the connecting plate of the running mechanism 420, and the spraying device moves along the path set by the guide rail of the running mechanism 420 to spray and irrigate in a large range.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A spraying device, comprising:

a body portion having at least one mounting plate extending laterally;

the guide pipe is carried on the mounting plate and consists of a hard tubular part, one end of the guide pipe is provided with a water inlet, and the pipe body is provided with a plurality of interfaces for connecting the nozzles;

and a press block for fixing the guide pipe, having a fixing groove formed on a bottom surface thereof to be matched with a cross section of the pipe body of the guide pipe, so that the press block crosses the guide pipe in a direction perpendicular to an extending direction of the guide pipe, extends outward from both ends of the fixing groove to form a fitting surface, and is fixed to the mounting plate through a fixing hole provided on the fitting surface.

2. A spraying device as claimed in claim 1,

the conduit comprises an annular conduit part and a straight conduit part connected with the annular conduit part, one end of the straight conduit part is provided with the water inlet, the annular conduit is fixedly connected with the other end of the straight conduit part integrally, the annular conduit part and the straight conduit part are both provided with interfaces for connecting nozzles,

the pressure block avoids the interface and fixes the guide pipe and the mounting plate at the straight pipe part.

3. The spraying device of claim 2, wherein the body portion comprises:

comprises an upper cover and a lower cover, a tank body with a cylindrical outer peripheral surface,

a holder provided on an outer peripheral side of the tank body, including: compressing an upper support ring of the upper cover; a lower support ring pressing the lower cover; the supporting rods are arranged between the upper supporting ring and the lower supporting ring to enable the upper supporting ring and the lower supporting ring to clamp the tank body;

the side wings are arranged on the bracket in pairs and are arranged in axial symmetry relative to the center of the tank body; and

a suspension rod for suspending the tank body,

the side wings are provided with pumps which are connected with water outlets arranged on the lower cover of the tank body through pipelines, and liquid is led out from the tank body and sprayed to the outer sides of the side wings by pumping.

4. A spraying device as claimed in claim 3,

the hanger rod passes through a hole in the center of the upper cover to reach the center of the lower cover,

a hole matched with the inner diameter of the suspender is formed in the center of the lower cover, the lower end of the suspender is welded to the center of the lower cover from the inner side and the outer side of the lower end of the suspender,

the plate used for the lower cover is thicker than the plate used for the upper cover and the side wall of the tank body.

5. A spraying device as claimed in claim 3,

a drain pipe extends downward from the lower cover, and a flange for connecting the drain valve is formed at the lower end of the drain pipe.

6. A spraying device as claimed in claim 3, in which,

a side wing fixing plate is arranged between the adjacent supporting rods,

the base part of the side wing is provided with a side wing connecting plate which is fixedly connected with the side wing fixing plate to ensure that the side wing and the tank body are relatively fixed,

and a side wing supporting plate is arranged on the lower surface of the side wing fixing plate and is fixedly connected with the side wing connecting plate.

7. A spraying device as claimed in claim 3, in which,

the upper end of the suspender is provided with a connecting plate for suspending and fixedly mounting the tank body on external equipment, the center of the connecting plate is provided with a hole matched with the inner diameter of the suspender, and the suspender and the connecting plate are welded into a whole from the inner side and the outer side of the upper end of the suspender.

8. A spraying device as claimed in claim 3,

a water inlet is formed by extending upwards from the upper cover.

9. A plant protection robot is characterized in that,

having a spraying device as claimed in any of claims 1 to 8,

the plant protection robot is provided with a medicine box, the spraying devices are symmetrically arranged at two ends of the medicine box,

the water inlet is connected with a liquid conveying pipe and/or a liquid pump which are arranged on the medicine box.

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