CN115709803A

CN115709803A - A unmanned aerial vehicle for agricultural production

Info

Publication number: CN115709803A
Application number: CN202211550413.8A
Authority: CN
Inventors: 徐菁; 孟令兵; 李义金
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Nanjing Vocational University of Industry Technology NUIT
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-02-24

Abstract

The invention discloses an unmanned aerial vehicle for agricultural production, which relates to the technical field of unmanned aerial vehicle application, and comprises an unmanned aerial vehicle body, a mounting frame, a water tank, a water pumping mechanism, a spraying mechanism, a piston cylinder, a stirring mechanism and a dosing mechanism.

Description

A unmanned aerial vehicle for agricultural production

Technical Field

The invention belongs to the technical field of unmanned aerial vehicle application, and particularly relates to an unmanned aerial vehicle for agricultural production.

Background

The unmanned aerial vehicle is an unmanned aerial vehicle which is operated by utilizing a radio remote control device and a self-contained program control device, is applied to the fields of aerial photography, agriculture, plant protection, miniature self-timer, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, romantic manufacturing and the like at present, greatly expands the application of the unmanned aerial vehicle, and is also applied to actively expanding the industry and developing the unmanned aerial vehicle technology in developed countries.

Current unmanned aerial vehicle is being used for the agricultural to spread the medicine when, generally with the direct mixing of medicine in the water tank, then remove unmanned aerial vehicle and spray to the crops top, the medicine is because long-time stewing deposits easily, influence the medicine effect, even set up rabbling mechanism in the water tank, because the water tank is bulky, the liquid medicine is many, the stirring leaf carries out the in-process that stirs to a large amount of liquid medicine, the liquid medicine flows and makes unmanned aerial vehicle great rocking of range appear easily, simultaneously because the liquid medicine volume is big, can cause the mixing effect poor, the medicine is inhomogeneous when leading to spraying, influence the medicine effect, secondly, current sprinkling mechanism, the spraying range is little, it is less to spray the area, lead to work efficiency lower, and adopt the shower nozzle swing to increase and spray the area, need use drive arrangement in addition again, the heavy burden of unmanned aerial vehicle has been increased, influence its operating duration.

Disclosure of Invention

The invention aims to provide an unmanned aerial vehicle for agricultural production, so as to overcome the defects caused in the prior art.

The utility model provides an unmanned aerial vehicle for agricultural production, includes the unmanned aerial vehicle body, the bottom demountable installation of unmanned aerial vehicle body has the mounting bracket, be equipped with two piston cylinders that water tank, pump water mechanism, spray mechanism and symmetry set up on the mounting bracket, be equipped with rabbling mechanism and medicine mechanism in the piston cylinder, pump water mechanism is in turn with the water suction in the water tank in one of them piston cylinder to squeeze the spray mechanism with the water in another piston cylinder and spray, the shower nozzle among the periodic drive spray mechanism of in-process of pump water mechanism pump water swings, drives simultaneously the rabbling mechanism stirs the water in the piston cylinder, the in-process drive of rabbling mechanism adds the medicine to the piston cylinder of medicine mechanism periodicity and adds the medicine.

Preferably, the mounting bracket includes from the top down roof, intermediate lamella and the bottom plate that sets gradually, be equipped with the mounting hole on the roof.

Preferably, the water pumping mechanism comprises a motor installed on the bottom plate, a rotary table is arranged on an output shaft of the motor, a wavy annular block is arranged at the bottom of the rotary table, a wavy guide groove is formed in the bottom of the wavy annular block, a piston is connected in the piston cylinder in a sliding mode, a piston rod is fixedly connected to the piston, the upper end of the piston rod is connected in the wavy guide groove in a sliding mode, the water tank is connected with the bottom of the piston cylinder through a water inlet pipe, a water inlet check valve is arranged in the water inlet pipe, a water outlet pipe connected with the spraying mechanism is arranged at the bottom of the piston cylinder, and a water outlet check valve is arranged in the water outlet pipe.

Preferably, the stirring mechanism comprises a fixed rod arranged at the bottom of the piston, a spiral groove is formed in the fixed rod, the bottom of the piston cylinder is rotatably connected with a rotating shaft, a stirring blade is arranged on the rotating shaft, and a protrusion matched with the spiral groove is arranged inside the rotating shaft.

Preferably, the medicine adding mechanism comprises a medicine box fixedly mounted on the middle plate, the medicine box is connected with the piston cylinder through a medicine adding pipe, a medicine adding check valve is arranged in the medicine adding pipe, the inner wall of the piston cylinder is rotatably connected with an annular plate, the annular plate is connected with the rotating shaft through a connecting rod, and a through hole matched with the medicine adding pipe is formed in the annular plate.

Preferably, the spraying mechanism is including installing in the vertical board of bottom plate bottom, it has the shower nozzle to articulate on the vertical board, the intercommunication has the connecting pipe of being connected with the shower nozzle on the outlet pipe, sliding connection has vertical pole on the bottom plate, the one end sliding connection of vertical pole is in wave guide way, and the other end articulates there is the hinge bar, the other end and the shower nozzle of hinge bar are articulated.

Preferably, the bottom of unmanned aerial vehicle body is equipped with the support frame, the welding has the connecting leg pole on the support frame, the cover has waterproof rubber on the connecting leg pole.

Preferably, the middle plate is provided with a mounting groove for mounting the water tank.

The invention has the advantages that: (1) The structure is simple, the turntable is driven to rotate by the motor, the wavy annular block at the bottom of the turntable rotates to drive the piston rod and the piston in the piston cylinder to reciprocate, water in the water tank is pumped into one of the piston cylinders through the water inlet pipe, liquid in the other piston cylinder is squeezed into the water outlet pipe through the water outlet pipe and is discharged through the spraying mechanism, the fixed rod moves up and down to drive the stirring blade and the annular plate to rotate through the rotating shaft, in the process of pumping, the annular plate rotates to intermittently open the medicine feeding pipe, medicine is sucked into the piston cylinders, intermittent medicine feeding is realized, meanwhile, the water and the liquid medicine in the piston cylinders are stirred by the rotation of the stirring blade, the stirring blade is rotated in the process of discharging, the stirring blade continues to stir the medicine, and due to the action of the medicine feeding one-way valve, the uniformly mixed liquid medicine cannot flow back through the medicine feeding pipe, so that the uniformly is squeezed into the water outlet pipe, and is sprayed out through the spraying mechanism, on the one hand, small-range of medicine feeding and uniform mixing is realized, the uniform mixing effect of the medicine is improved, and the liquid medicine is sprayed while being stirred, further improved, on the other hand, medicine and more is only required to be sprayed when the spraying is avoided being not used up;

(2) In the process that the fixed rod moves up and down, the stirring direction of the stirring blades is opposite, so that the uniform mixing effect of the medicine and the water is further improved;

(3) The wave annular piece rotates and drives the piston rod and reciprocate the in-process of drawing water, drainage, and vertical pole also can reciprocate, and vertical pole reciprocates and drives the shower nozzle swing through the hinge bar, has increased the scope of spraying, has improved the effect of spraying.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic structural view of the unmanned aerial vehicle-free body in the present invention.

FIG. 3 is a schematic view of the structure of the water tank, the medicine chest, the piston cylinder and the spraying mechanism of the present invention.

Fig. 4 is a schematic structural view of the interior of a piston cylinder in the invention.

FIG. 5 is a schematic view of the mounting bracket and motor assembly of the present invention.

The unmanned aerial vehicle comprises a unmanned aerial vehicle body 1, a support frame 11, waterproof rubber 12, connecting foot rods 13, a mounting frame 2, a top plate 21, a mounting hole 211, a middle plate 22, a mounting groove 221, a bottom plate 23, a water tank 3, a medicine box 4, a piston cylinder 5, a spraying mechanism 6, a vertical rod 61, a hinged rod 62, a connecting pipe 63, a spray head 64, a vertical plate 65, a water pumping mechanism 7, a motor 71, a rotary disc 72, a wavy annular block 73, a wavy guide groove 74, a piston rod 75, a piston 76, a water inlet pipe 77, a water inlet check valve 771, a water outlet pipe 78, a water outlet check valve 781, a stirring mechanism 8, a fixing rod 81, a rotating shaft 82, a stirring blade 83, a medicine adding mechanism 9, a circular plate 91, a through hole 911, a connecting rod 92, a medicine adding pipe 93 and a medicine adding check valve 931.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, an unmanned aerial vehicle for agricultural production, including unmanned aerial vehicle body 1, the bottom demountable installation of unmanned aerial vehicle body 1 has mounting bracket 2, be equipped with two piston cylinders 5 that water tank 3, pump water mechanism 7, spray mechanism 6 and symmetry set up on the mounting bracket 2, be equipped with rabbling mechanism 8 and dosing mechanism 9 in the piston cylinder 5, pump water mechanism 7 is in the water suction of water tank 3 in the turn in one of them piston cylinder 5 to squeeze into spray mechanism 6 with the water in another piston cylinder 5 and spray, can guarantee that the liquid medicine that has the mixing always sprays through spray mechanism 6, shower nozzle 64 in the periodic drive spray mechanism 6 of in-process of pump water mechanism 7 pump water swings, the simultaneous driving stirring mechanism 8 stirs the water in the piston cylinder 5, the in-process drive of 8 stirring of dosing mechanism 9 is periodic adds medicine in mounting bracket 5, mounting bracket 2 includes roof 21, intermediate lamella 22 and bottom plate 23 that down set gradually, be equipped with mounting hole 211 on the roof 21, mounting hole 211 is convenient for carrying out mounting bracket 2 with water tank body 1, mounting bracket body 1 has the mounting bracket 11 to carry out the effect of adding medicine to mounting bracket 3, and take place unmanned aerial vehicle on the waterproof rubber rod connecting rod 13, and take place the waterproof mounting bracket 13, and take place the waterproof foot pole on the support arm 13, and take place the water tank 3 from last waterproof mounting bracket 13, the waterproof foot pole of water tank 11 on the water tank is equipped with mounting bracket 13 on the water tank, and the water tank is convenient for the mounting bracket 13.

In this embodiment, the water pumping mechanism 7 includes a motor 71 installed on the bottom plate 23, a rotary table 72 is arranged on an output shaft of the motor 71, a wavy annular block 73 is arranged at the bottom of the rotary table 72, a wavy guide groove 74 is arranged at the bottom of the wavy annular block 73, a piston 76 is slidably connected in the piston cylinder 5, a piston rod 75 is fixedly connected to the piston 76, the upper end of the piston rod 75 is slidably connected in the wavy guide groove 74, the water tank 3 is connected with the bottom of the piston cylinder 5 through a water inlet pipe 77, a water inlet one-way valve 771 is arranged in the water inlet pipe 77, a water outlet pipe 78 connected with the spraying mechanism 6 is arranged at the bottom of the piston cylinder 5, a water outlet one-way valve 781 is arranged in the water outlet pipe 78, the piston rod 75 moves up and down to drive the piston 76 to move up and down, the water in the water tank 3 is sucked into the piston cylinder 5 through the water inlet pipe 77, the piston 76 moves down, and the water in the piston cylinder 5 is discharged through the water outlet pipe 78.

In this embodiment, rabbling mechanism 8 is including installing in the dead lever 81 of piston 76 bottom, be equipped with the helicla flute on the dead lever 81, the bottom of piston cylinder 5 is rotated and is connected with axis of rotation 82, be equipped with stirring leaf 83 on the axis of rotation 82, axis of rotation 82 is inside be equipped with helicla flute complex arch, piston 76 reciprocates and drives dead lever 81 and reciprocate, and dead lever 81 reciprocates and drives the rotation pivot through helicla flute and protruding cooperation and rotate, and axis of rotation 82 rotates and drives stirring leaf 83 and rotate, carries out the mixing to the liquid medicine in the piston cylinder 5, and dead lever 81 shifts up and moves down the in-process, and the opposite direction of stirring leaf 83 further improves the mixing effect of medicine and water.

In this embodiment, medicine mechanism 9 includes medicine chest 4 of fixed mounting on intermediate lamella 22, be connected through adding pencil 93 between medicine chest 4 and the piston cylinder 5, be equipped with in adding pencil 93 and add medicine check valve 931, piston cylinder 5 inner wall rotates and is connected with annular plate 91, be connected through connecting rod 92 between annular plate 91 and the pivot, be equipped with on the annular plate 91 with adding pencil 93 complex through-hole 911, the dead lever 81 shifts up and drives stirring leaf 83 and annular plate 91 rotation through axis of rotation 82, annular plate 91 rotates opening of intermittent type nature and adds pencil 93, negative pressure in the piston cylinder 5 inhales the medicine in the piston cylinder 5, realizes intermittent type nature and adds the medicine, and dead lever 81 moves down and drives annular plate 91 through axis of rotation 82 and rotates, and the pressure increase in the piston cylinder 5, in the medicine can't get into piston cylinder 5 through adding pencil 93, simultaneously because the effect that adds pencil 931, the liquid medicine of mixing can not flow back through adding pencil 93 to be crowded into outlet pipe 78.

In this embodiment, the spraying mechanism 6 is including installing in the vertical board 65 of bottom plate 23, it has shower nozzle 64 to articulate on the vertical board 65, the intercommunication has the connecting pipe 63 of being connected with shower nozzle 64 on the outlet pipe 78, sliding connection has vertical pole 61 on the bottom plate 23, the one end sliding connection of vertical pole 61 is in wave guide way 74, and the other end articulates there is hinge bar 62, hinge bar 62's the other end is articulated with shower nozzle 64, and wave ring piece 73 rotates and drives vertical pole 61 and reciprocate, and vertical pole 61 reciprocates and drives, drives the one end swing of shower nozzle 64 through hinge bar 62 to drive shower nozzle 64 swing, shower nozzle 64 swing has increased the scope of spraying, has improved the effect of spraying.

The working process of the invention is as follows: firstly, pouring medicines into a medicine box 4, filling water in a water tank 3, then installing the water tank 3 in a placing groove, then installing an installation frame 2 and an unmanned aerial vehicle body 1 through an installation hole 211, starting the unmanned aerial vehicle to fly to a place where the medicine liquid needs to be sprayed, starting a motor 71, rotating the motor 71 to drive a rotary disc 72 to rotate, rotating the rotary disc 72 to drive a wavy annular block 73 to rotate, rotating the wavy annular block 73 to drive a piston rod 75 and a vertical rod 61 to move up and down, moving the vertical rod 61 up and down to drive one end of a spray head 64 to swing through a hinge rod 62, thereby driving the spray head 64 to swing, increasing the spraying range through the swinging of the spray head 64, moving the piston rod 75 up and down to drive a piston 76 to move up and down, moving the piston 76 up, sucking the water in the water tank 3 into a piston cylinder 5 through a water inlet pipe 77, and moving the piston 76 up to drive a fixing rod 81 to move up, the fixed rod 81 moves upwards to drive the stirring blade 83 and the annular plate 91 to rotate through the rotating shaft 82, the annular plate 91 rotates to intermittently open the medicine feeding pipe 93, negative pressure in the piston cylinder 5 sucks medicine into the piston cylinder 5 to realize intermittent medicine feeding, meanwhile, the stirring blade 83 rotates to stir water and liquid medicine in the piston cylinder 5 to uniformly mix the water and the liquid medicine, the piston 76 moves downwards, the water in the piston cylinder 5 is discharged through the water outlet pipe 78, the piston 76 moves downwards to drive the fixed rod 81 to move downwards, the fixed rod 81 moves downwards to drive the stirring blade 83 and the annular plate 91 to rotate through the rotating shaft 82, the stirring blade 83 continues to stir the medicine, the pressure in the piston cylinder 5 is increased, the medicine cannot enter the piston cylinder 5 through the medicine feeding pipe 93, meanwhile, the uniformly mixed liquid medicine cannot flow back through the medicine feeding pipe 93 due to the effect of the medicine feeding one-way valve 931, so that the liquid medicine is extruded into the water outlet pipe 78, the liquid medicine discharged through the water outlet pipe 78 reaches the spray head 64 through the connecting pipe 63, through the oscillating spray head 64.

The structure of the invention is simple, the motor 71 drives the turntable 72 to rotate, the wavy annular block 73 at the bottom of the turntable 72 rotates to drive the piston rod 75 and the piston 76 in the piston cylinder 5 to reciprocate, water in the water tank 3 is pumped into one of the piston cylinders 5 through the water inlet pipe 77, liquid in the other piston cylinder 5 is squeezed into the water outlet pipe 78 through the water outlet pipe 78 and is discharged through the spraying mechanism 6, the fixing rod 81 moves up and down, the stirring blade 83 and the annular plate 91 are driven to rotate through the rotating shaft 82, in the process of pumping, the annular plate 91 rotates to intermittently open the medicine feeding pipe 93, medicines are sucked into the piston cylinder 5 to realize intermittent medicine feeding, meanwhile, the stirring blade 83 rotates to stir water and liquid medicine in the piston cylinder 5, so that the medicines are uniformly mixed, in the process of discharging, the annular plate 91 and the stirring blade 83 rotate, the stirring blade 83 continues to stir the medicines, due to the effect of the medicine feeding one-way valve 931, the liquid medicine which is uniformly mixed cannot flow back through the medicine feeding pipe 93, so that the liquid medicine is squeezed into the water outlet pipe 78, and the liquid medicine is sprayed out through the spraying mechanism 6, on one hand, the small-range of uniformly-mixing is realized, the effect of improving the uniformly mixing, and on the other hand, the waste of the medicine is avoided when the medicine is not used for the medicine is not used;

in the process that the fixed rod 81 moves up and down, the stirring direction of the stirring blades 83 is opposite, so that the uniform mixing effect of the medicine and the water is further improved;

the wavy annular block 73 rotates to drive the piston rod 75 to move up and down to pump water and drain water, the vertical rod 61 can also move up and down, the vertical rod 61 moves up and down to drive the spray head 64 to swing through the hinge rod 62, the spraying range is enlarged, and the spraying effect is improved.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or are equivalent to the scope of the invention are intended to be embraced therein.

Claims

1. An unmanned aerial vehicle for agricultural production, its characterized in that: including unmanned aerial vehicle body (1), the bottom demountable installation of unmanned aerial vehicle body (1) has mounting bracket (2), be equipped with two piston cylinders (5) of water tank (3), pump water mechanism (7), spray mechanism (6) and symmetry setting on mounting bracket (2), be equipped with rabbling mechanism (8) and dosing mechanism (9) in piston cylinder (5), pump water mechanism (7) are in turn with the water suction in water tank (3) in one of them piston cylinder (5) to squeeze into spray mechanism (6) with the water in another piston cylinder (5) and spray, shower nozzle (64) in the periodic drive spray mechanism (6) of in-process of pump water mechanism (7) pump water swings, drives simultaneously rabbling mechanism (8) stirs the water in piston cylinder (5), the in-process drive of rabbling mechanism (8) dosing mechanism (9) is periodic adds the medicine in piston cylinder (5).

2. A drone for agricultural production according to claim 1, characterised in that: mounting bracket (2) include from last roof (21), intermediate lamella (22) and bottom plate (23) that down set gradually, be equipped with mounting hole (211) on roof (21).

3. A drone for agricultural production according to claim 2, characterised in that: pump water mechanism (7) is including installing motor (71) on bottom plate (23), be equipped with carousel (72) on the output shaft of motor (71), the bottom of carousel (72) is equipped with wave annular piece (73), the bottom of wave annular piece (73) is equipped with wave guide way (74), sliding connection has piston (76) in piston cylinder (5), fixedly connected with piston rod (75) on piston (76), the upper end sliding connection of piston rod (75) is in wave guide way (74), be connected through inlet tube (77) between water tank (3) and piston cylinder (5) bottom, be equipped with into water check valve (771) in inlet tube (77), the bottom of piston cylinder (5) is equipped with outlet pipe (78) of being connected with spraying mechanism (6), be equipped with out water check valve (781) in outlet pipe (78).

4. A drone for agricultural production according to claim 3, characterised in that: the stirring mechanism (8) comprises a fixing rod (81) arranged at the bottom of the piston (76), a spiral groove is formed in the fixing rod (81), the bottom of the piston cylinder (5) is rotatably connected with a rotating shaft (82), a stirring blade (83) is arranged on the rotating shaft (82), and a protrusion matched with the spiral groove is formed in the rotating shaft (82).

5. A drone for agricultural production according to claim 4, characterised in that: medicine adding mechanism (9) include medical kit (4) of fixed mounting on intermediate lamella (22), be connected through adding pencil (93) between medical kit (4) and piston cylinder (5), be equipped with in adding pencil (93) and add medicine check valve (931), piston cylinder (5) inner wall rotates and is connected with annular plate (91), be connected through connecting rod (92) between annular plate (91) and the pivot, be equipped with on annular plate (91) and add pencil (93) complex through-hole (911).

6. A drone for agricultural production according to claim 5, characterised in that: sprinkling mechanism (6) are including installing in vertical board (65) of bottom plate (23) bottom, it has shower nozzle (64) to articulate on vertical board (65), the intercommunication has connecting pipe (63) of being connected with shower nozzle (64) on outlet pipe (78), sliding connection has vertical pole (61) on bottom plate (23), the one end sliding connection of vertical pole (61) is in wave guide way (74), and the other end articulates there is hinge bar (62), the other end and shower nozzle (64) of hinge bar (62) are articulated.

7. A drone for agricultural production according to claim 6, characterised in that: the bottom of unmanned aerial vehicle body (1) is equipped with support frame (11), the welding has connecting leg pole (13) on support frame (11), the cover has waterproof rubber (12) on connecting leg pole (13).

8. A drone for agricultural production according to claim 7, characterised in that: and the middle plate (22) is provided with a mounting groove (221) for mounting the water tank (3).