WO2020062292A1 - Système de pulvérisation embarqué pour machine de protection de plante agricole, et machine de protection de plante agricole - Google Patents

Système de pulvérisation embarqué pour machine de protection de plante agricole, et machine de protection de plante agricole Download PDF

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Publication number
WO2020062292A1
WO2020062292A1 PCT/CN2018/109199 CN2018109199W WO2020062292A1 WO 2020062292 A1 WO2020062292 A1 WO 2020062292A1 CN 2018109199 W CN2018109199 W CN 2018109199W WO 2020062292 A1 WO2020062292 A1 WO 2020062292A1
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WO
WIPO (PCT)
Prior art keywords
opening
pump
pump device
plant protection
diaphragm
Prior art date
Application number
PCT/CN2018/109199
Other languages
English (en)
Chinese (zh)
Inventor
舒展
吴晓龙
周乐
Original Assignee
深圳市大疆软件科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆软件科技有限公司 filed Critical 深圳市大疆软件科技有限公司
Priority to CN201880040641.6A priority Critical patent/CN110799418A/zh
Priority to PCT/CN2018/109199 priority patent/WO2020062292A1/fr
Publication of WO2020062292A1 publication Critical patent/WO2020062292A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
    • B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0025—Mechanical sprayers
    • A01M7/0032—Pressure sprayers
    • A01M7/0042—Field sprayers, e.g. self-propelled, drawn or tractor-mounted
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the invention relates to the field of agricultural plant protection machines, in particular to an on-board spraying system of an agricultural plant protection machine and an agricultural plant protection machine.
  • the invention provides an airborne spraying system for an agricultural plant protection machine and an agricultural plant protection machine.
  • the present invention is implemented by the following technical solutions:
  • an airborne spraying system for an agricultural plant protection machine including:
  • the fixing frame is provided with a plurality of openings, each opening including a first opening and a second opening communicating with the first opening, wherein a diameter of the first opening is larger than a diameter of the second opening;
  • a plurality of connecting members for fixing a plurality of the pump devices in corresponding openings each connecting member having a connection body and a stopper portion, the connection body being fixedly connected with the corresponding pump device, the stopper portion
  • the stopper is provided on the connecting body, and the size of the stopper is larger than the diameter of the second opening and smaller than or equal to the diameter of the first opening, so that the stopper can pass through the first opening, but cannot Through the second opening,
  • the stopper when the connecting piece cooperates with the opening, the stopper can pass through the first opening, and the connecting body can slide from the first opening into the second opening, so that the The stopper is blocked by a peripheral edge of the second opening.
  • an agricultural plant protection machine comprising a frame, a liquid storage tank for storing a medicinal solution, a pipe communicating with the liquid storage tank, and a plurality of spray heads, and further comprising an airborne spray system
  • the on-board spraying system includes:
  • the fixing frame is provided with a plurality of openings, each opening including a first opening and a second opening communicating with the first opening, wherein a diameter of the first opening is larger than a diameter of the second opening;
  • a plurality of pump devices which are connected between the liquid storage tank and the corresponding spray head through the pipeline, and the pump device is used for pumping the liquid medicine in the liquid storage tank to the corresponding spray head;
  • a plurality of connecting members for fixing a plurality of the pump devices in corresponding openings each connecting member having a connection body and a stopper portion, the connection body being fixedly connected with the corresponding pump device, the stopper portion
  • the stopper is provided on the connecting body, and the size of the stopper is larger than the diameter of the second opening and smaller than or equal to the diameter of the first opening, so that the stopper can pass through the first opening, but cannot Through the second opening,
  • the stopper when the connecting piece cooperates with the opening, the stopper can pass through the first opening, and the connecting body can slide from the first opening into the second opening, so that the The stopper is blocked by a peripheral edge of the second opening.
  • the first opening and the second opening having different calibers and communicating with each other are provided on the fixing frame.
  • the connection is connected. It is sufficient to insert the first opening into the second opening and slide it into the second opening.
  • the pump device is detached from the fixing frame, slide the connecting piece from the second opening to the first opening, and then release the connecting piece from the first opening. That is, through the simple structure and low-cost connection pieces and openings, the rapid installation and removal of the pump device is realized.
  • the process of installing and removing the pump device is simple, the operation steps are few, and it is easy to implement. Saves time and facilitates repair or replacement of the pump unit at a later stage if the pump unit is damaged.
  • FIG. 1 is a schematic structural diagram of an airborne spraying system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of an opening of an airborne spraying system according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a connector of an airborne spraying system according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a specific structure of a connector of an airborne spraying system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an airborne spraying system in another direction according to an embodiment of the present invention.
  • FIG. 6 is a structural exploded view of a diaphragm pump in an embodiment of the present invention.
  • FIG. 7 is a schematic perspective view of a diaphragm pump according to an embodiment of the present invention.
  • FIG. 8 is a schematic perspective view of a diaphragm pump in another direction according to an embodiment of the present invention.
  • FIG. 9 is a structural exploded view of a diaphragm pump in an embodiment of the present invention.
  • FIG. 10 is a schematic cross-sectional view of a diaphragm pump in an embodiment of the present invention.
  • FIG. 11 is a perspective view of a diaphragm pump in another embodiment of the present invention.
  • FIG. 12 is a schematic structural exploded view of a diaphragm pump in another embodiment of the present invention.
  • FIG. 13 is another schematic structural exploded view of a diaphragm pump in another embodiment of the present invention.
  • FIG. 14 is a schematic sectional view of a diaphragm pump in another embodiment of the present invention.
  • FIG. 15 is a schematic perspective view of a pump device in still another embodiment of the present invention.
  • 16 is a schematic partial exploded view of a pump device according to another embodiment of the present invention.
  • FIG. 17 is a schematic cross-sectional view of a pump device in still another embodiment of the present invention.
  • FIG. 18 is a perspective view of a motor in an embodiment of the present invention.
  • 19 is a sectional view of a motor in an embodiment of the present invention.
  • FIG. 20 is a partially enlarged view of a part of the structure in FIG. 19;
  • 21 is a structural exploded view of a motor in an embodiment of the present invention.
  • 22 is another structural exploded view of a motor in an embodiment of the present invention.
  • FIG. 23 is a perspective view of an agricultural plant protection machine according to an embodiment of the present invention.
  • 100 frame; 110: fuselage; 120: tripod; 130: arm; 200: liquid storage tank; 300: pipeline; 400: sprinkler; 500: airborne spray system;
  • 4 drive mechanism; 41: motor body; 411: motor rotor; 412: motor stator; 413: electrical interface; 414: circuit board; 42: motor base; 421: pump body mounting surface; 422: motor mounting surface; 423: Mounting holes; 43: motor shaft; 44: protective cover; 45: static seal; 46: dynamic seal; 461: first recessed portion; 462: first abutment portion; 463: second abutment portion; 464: Third abutment portion; 465: second recessed portion; 47: first bearing; 48: electric plug; 49: sealing structure; 410: second bearing; 420: third bearing;
  • valve cover 91: first fixed connection member; 92: first protrusion;
  • the first embodiment of the present invention provides an airborne spraying system 500.
  • the airborne spraying system 500 may include a fixing frame 510, a pump device 520, and a connecting member 530.
  • the fixing frame 510 is provided with a plurality of openings 511.
  • Each opening 511 includes a first opening 5111 and a second opening 5112 communicating with the first opening 5111.
  • the diameter of the first opening 5111 is larger than the diameter of the second opening 5112.
  • the pump device 520 and the connecting member 530 also include a plurality.
  • the opening 511, the pump device 520, and the connecting member 530 are in a one-to-one correspondence relationship.
  • the multiple connecting members 530 are used to fix the multiple pump devices 520 to the corresponding In the opening 511.
  • each connecting piece 530 has a connecting body 531 and a stopping portion 532.
  • the connection body 531 is fixedly connected to the corresponding pump device 520, and the stopper portion 532 is provided on the connection body 531.
  • the size of the stopping portion 532 in this embodiment is larger than the diameter of the second opening 5112 and smaller than or equal to the diameter of the first opening 5111, so that the stopping portion can pass through the first opening 5111, but cannot pass through the second opening.
  • the size of the stopper portion 532 refers to the size of the stopper portion 532 in a direction perpendicular to the direction in which the stopper portion 532 penetrates the first opening 5111.
  • the installation process of the pump device 520 includes: firstly fixing the end of the connecting body 531 of the connecting member 530 away from the stopper portion 532 to the pump device 520, and then passing the stopper portion 532 through the first opening 5111 to connect the main body 531 slides from the first opening 5111 into the second opening 5112, and the stopper 532 is blocked by the peripheral edge of the second opening 5112, thereby fixing the corresponding pump device 520 on the fixing frame 510.
  • the disassembling process of the pump device 520 includes: sliding the connecting body 531 of the connecting member 530 from the second opening 5112 into the first opening 5111. At this time, the stopper 532 can be released from the first opening 5111 in the direction of the corresponding pump device 520. , So that the connecting piece 530 is separated from the opening 511, and the corresponding pump device 520 is detached from the fixing frame 510.
  • a first opening 5111 and a second opening 5112 of different diameters are communicated with each other on the fixed frame 510.
  • the connecting piece 530 is passed through the first opening 5111 and the second opening 5112.
  • One opening 5111 can be slid into the second opening 5112.
  • the connecting member 530 is slid from the second opening 5112 to the first opening 5111, and then the connecting member 530 is removed from the first opening 5111.
  • the opening 5111 can be pulled out, and the simple and low-cost connection piece 530 cooperates with the opening 511 to realize the rapid installation and removal of the pump device 520.
  • the process of installing and removing the pump device 520 is simple, the operation steps are simple, and it is easy to implement This saves time for the integration of multiple pump devices 520 and facilitates the maintenance or replacement of the pump device 520 in the future when the pump device 520 is damaged.
  • the fixing frame 510 may include a fixing plate.
  • the fixing plate is a carbon plate.
  • a plurality of openings 511 are arranged in a row at intervals on the fixing frame 510.
  • This arrangement of the openings 511 allows a plurality of pump devices 520 to be fixed to the fixing frame 510 in a row.
  • a liquid leaks due to damage to one of the pump devices 520, and the leaked liquid (which may be water or a chemical liquid) will not enter the other pump devices 520, which is beneficial to protecting the pump device 520.
  • the arrangement of the plurality of openings 511 is not limited to this, and other arrangements can also be selected.
  • the plurality of openings 511 are arranged in two rows above and below, and each row includes one or more spaced pump devices 520.
  • the adjacent openings 511 in the upper and lower rows of openings 511 are staggered to reduce the impact of the pump device 520 fixed by the upper row of openings 511 on the pump device 520 fixed by the lower row of openings 511 due to damage and leakage.
  • an installation direction of the openings 511 arranged at a row interval is referred to as a first direction.
  • the first opening 5111 is located above the second opening 5112, and the connecting body 531 can relatively easily slide from the first opening 5111 into the second opening 5112.
  • the first opening 5111 is located directly above the second opening 5112, and the line connecting the center of the first opening 5111 and the center of the second opening 5112 is perpendicular to the first direction.
  • the second opening 5112 is offset from one side of the first opening 5111 and is located below the first opening 5111.
  • the center line of the first opening 5111 and the center of the second opening 5112 are inclined relative to the first direction.
  • the first opening 5111 and the second opening 5112 may also be arranged along the first direction, and the line connecting the center of the first opening 5111 and the center of the second opening 5112 is parallel to the first direction.
  • the shape of the first opening 5111 and the second opening 5112 can be set as required.
  • the first opening 5111 is a circular hole
  • the second opening 5112 is a non-circular hole (such as a square hole).
  • the first opening 5111 is a non-circular hole (such as a square hole)
  • the second opening 5112 is a circular hole.
  • the first opening 5111 and the second opening 5112 are both circular holes.
  • the plurality of connecting members 530 in this embodiment may be provided independently of each other, or may be an integrated structure. In one embodiment, a plurality of connecting members 530 are provided independently of each other.
  • Each connecting member 530 fixes a corresponding pump device 520 in a corresponding opening 511, and each pump device 520 can be independently installed and removed with respect to the fixing frame 510. Facilitate later maintenance.
  • an end of the connecting body 531 of each connecting member 530 remote from the stopping portion 532 is integrally formed on the casing of the pump device 520.
  • the end of the connecting body 531 of each connecting member 530 remote from the stopper 532 is detachably connected to the casing of the pump device 520, for example, it can be detachably connected to the pump device 520 by means of screw connection, snap-in, etc. On the shell.
  • connection bracket 533 is fixedly connected to the plurality of pump devices 520.
  • connection bracket 533 can be detachably connected to each pump device 520, for example, it can be detachably connected to the casing of the pump device 520 by means of screwing, snapping, etc. In this way, the pump device 520 can be separately connected from the connection bracket 533.
  • the disassembly is convenient for the later disassembly and repair of the failed pump device 520.
  • connection main body 531 and the second opening 5112 are in an interference fit, the connection main body 531 is squeezed into the second opening 5112, and the pump device 520 can be fixed to the second opening 5112 relatively firmly through the connection member 530, so as to avoid During the operation of the airborne spraying system 500, the pump device 520 was shaken due to the unstable connection between the pump device 520 and the second opening 5112.
  • connection main body 531 and the second opening 5112 can also be fitted with a clearance, so that the connection main body 531 can be switched between the first opening 5111 and the second opening 5112, thereby facilitating the installation and removal of the pump device 520.
  • a fixing portion may be provided on the periphery of the second opening 5112, and the fixing portion cooperates with the stop portion 532, so that the pump The device 520 is stably fixed on the second opening 5112.
  • the fixing portion and the stopping portion 532 can be matched with each other by a snap connection or a plug connection.
  • the area of the portion of the stopper 532 that is blocked by the peripheral edge of the second opening 5112 is larger than a preset area threshold, and the pump device 520 is further stably fixed on the second opening 5112.
  • the size of the stop portion 532 is equal to the diameter of the first opening 5111.
  • the stopper portion 532 may be pulled or pressed with a larger force, so that the inner edge of the first opening 5111 presses the stopper portion 532, so that the stopper portion 532 is deformed to pass through the first opening 5111.
  • the size of the stopper portion 532 is smaller than the diameter of the first opening 5111, and the stopper portion 532 can pass through the first opening 5111 more easily, thereby facilitating the installation and removal of the pump device 520.
  • the connecting member 530 of this embodiment may be a flexible material, such as rubber or plastic, so as to reduce the vibration of the pump device 520 during operation or during transportation.
  • each pump device 520 includes a water inlet.
  • the water inlets of the plurality of pump devices 520 face the same.
  • the water inlets of the plurality of pump devices 520 are oriented differently or partly.
  • multiple pump devices 520 of the airborne spraying system 500 share the same general water inlet, and the liquid flow rate entering the water inlet of each pump device 520 may fluctuate, causing the problem of flow movement between multiple pump devices 520 (Caused by different liquid flow rates into each pump device 520), which can cause the spray pressure of the on-board spray system 500 to be unstable.
  • the water inlets of the plurality of pump devices 520 in this embodiment face the same.
  • the water inlets of the plurality of pump devices 520 communicate with each other through the water separator 540.
  • the water separator 540 draws out the liquid in the liquid storage tank 200 and pumps it out through a plurality of pump devices 520.
  • the water separator 540 By providing the water separator 540, the problem of flow fluctuation between multiple pump devices 520 is solved, and the structure of the total water inlet is simplified.
  • a sub-tank 541 is provided near each water inlet of the water separator 540.
  • the sub-water tank 541 communicates with the corresponding water inlet.
  • the liquid in the water separator 540 passes through the sub-water tank 541 and the corresponding water inlet.
  • the water inlet enters the corresponding pump device 520, which further slows down the flow fluctuation between the multiple pump devices 520 and ensures the stability of the spray pressure of the airborne spray system 500.
  • the auxiliary water tank 541 is a flexible material, such as rubber or plastic.
  • the auxiliary water tank 541 of the flexible material can deform to absorb the pulsating pressure of the water inlet due to the unstable liquid flow, thereby ensuring the stability of the spray pressure of the airborne spray system 500. .
  • each pump device 520 in this embodiment may further include a water outlet.
  • the water outlets of the plurality of pump devices 520 are oriented in the same direction and opposite to the water inlets.
  • the directions of the water outlets of the plurality of pump devices 520 are different or partially different.
  • the pump device 520 has a top and a bottom, with the top as “upper” and the bottom as “lower” as a reference to further describe the water inlet and outlet of the pump device 520.
  • the water inlets of the plurality of pump devices 520 face downward, and the water outlets of the plurality of pump devices 520 face upward, which is beneficial to the layout of the pipeline 300.
  • a pressure detection device In order to monitor the real-time pressure change of the pump device 520, a pressure detection device is generally installed on the pump device 520.
  • the pump device 520 uses a built-in pressure detection device.
  • the pressure detection device Due to pressure shock, the pressure detection device is extremely easy to be damaged and needs regular maintenance or replacement.
  • the built-in pressure detection device is damaged, disassembly and replacement are particularly troublesome. After the built-in pressure detection device is damaged, the entire pump device 520 needs to be scrapped. .
  • a pressure gauge 550 may be further provided on each pump device 520 to detect a pressure change in the pump device 520.
  • the pressure gauge 550 is detachably connected to the corresponding pump device 520.
  • the pressure gauge 550 of this embodiment is external and detachable.
  • the pressure gauge 550 is easy to assemble and disassemble, and it is not necessary to remove the pump device 520, or it can be separated. Replace the pressure gauge 550.
  • the pressure gauge 550 may be detachably connected to the corresponding pump device 520 through a thread or a flange.
  • the position where the pressure gauge 550 is connected to the pump device 520 can be selected according to needs.
  • the pressure gauge 550 is provided at the bottom of the corresponding pump device 520 to facilitate pressure.
  • Meter 550 for quick disassembly.
  • each pump device 520 further includes a driving mechanism 4 as a driving source of the pump device 520.
  • the type of the driving mechanism 4 can be selected according to needs.
  • the driving mechanism 4 includes a motor.
  • the motor is located on the top of the corresponding pump device 520 to prevent the pump device 520 from being damaged and leaking. The leaked liquid enters the motor to achieve protection.
  • the purpose of the motor is directly disposed on the top of the pump device 520.
  • the motor is disposed at a certain distance from the top of the pump device 520.
  • the motor of this embodiment may be directly or indirectly fixedly connected to the top of the pump device 520. It can be understood that the motor can also be replaced with another driving device.
  • the airborne spraying system 500 may further include a mounting bracket 560.
  • the mounting bracket 560 is configured to be fixedly connected to an external device, and the mounting bracket 560 is fixedly connected to the fixing frame 510.
  • the mounting bracket 560 is fixedly connected to the external device, thereby fixing the airborne spraying system 500 on the external device.
  • the mounting bracket 560 and the fixing bracket 510 can be detachably fixedly connected, and the mounting bracket 560 and the fixing bracket 510 can be detachably fixed.
  • Any existing fixing method can be selected, for example, the mounting bracket 560 and the fixing bracket 510 are based on threads and quick-release parts. Removable connection by welding or other methods.
  • the mounting bracket 560 is integrally formed with the fixing frame 510.
  • the mounting bracket 560 may include one or more.
  • the mounting bracket 560 includes a plurality of mounting brackets 560, and the plurality of mounting brackets 560 are disposed on the fixing frame 510 at intervals.
  • the plurality of mounting brackets 560 are fixedly connected to the external device, respectively, so that the airborne spray system 500 is stably fixed on the external device.
  • the external equipment is an agricultural plant protection machine, such as a plant protection drone, a pesticide spraying vehicle, a human spraying device, etc.
  • the airborne spraying system 500 of this embodiment is applied to an agricultural plant protection machine to meet the large flow in the field of plant protection The need for multiple spray heads 400 for spraying and independent control.
  • the mounting bracket 560 can be installed on the frame 100 of the plant protection drone, so as to mount the airborne spraying system 500 on the frame 100.
  • the pump device 520 in this embodiment may be a diaphragm pump, or may be another type of pump. Due to the strong corrosiveness of pesticides, the pump device 520 needs to have a certain corrosion resistance. Therefore, the pump device 520 in this embodiment is selected as a diaphragm pump.
  • the diaphragm pump may include a pump body 1, a pump cover 8, a diaphragm sheet 3, a driving mechanism 4, and a diaphragm support 5.
  • the pump cover 8 is disposed on the pump body 1, and the diaphragm 3 is disposed in the pump body 1.
  • the diaphragm sheet 3 is matched with the pump cover 8.
  • the diaphragm sheet 3 and the pump cover 8 are surrounded to form a cavity.
  • the driving mechanism 4 is connected to the diaphragm 3.
  • the driving mechanism 4 is directly or indirectly connected to the side of the diaphragm 3 away from the cavity.
  • the driving mechanism 4 is used to drive the diaphragm 3 to reciprocate with respect to the pump cover 8 so that the cavity Volume decreases or increases.
  • the driving mechanism 4 drives the diaphragm 3 to move toward the pump cover 8, that is, when the driving mechanism 4 squeezes the diaphragm 3, the volume of the cavity decreases, and the pesticide in the cavity is discharged; when the driving mechanism 4 drives the diaphragm 3 away from the pump cover 8
  • the movement that is, when the driving mechanism 4 stretches the diaphragm 3, the cavity volume increases, and the pesticide is sucked into the cavity from the outside.
  • one end of the diaphragm support 5 is in contact with the side of the diaphragm sheet 3 away from the pump cover 8 and the other end is connected to the driving structure, and the side of the diaphragm support 5 and the diaphragm sheet 3 is far from the pump cover 8
  • the contact area (hereinafter referred to as the contact surface) is larger than a preset area threshold.
  • the area of the contact surface between the diaphragm support 5 and the side of the diaphragm sheet 3 away from the cavity is designed to be sufficiently large by abutting the diaphragm support 5 on the side of the diaphragm sheet 3 away from the cavity, and the diaphragm is driven by the driving mechanism 4
  • the diaphragm support 5 limits the diaphragm 3 by the diaphragm support 5, so that the diaphragm 3 reciprocates in the same direction, and reduces the movement of the diaphragm 3 in other directions, which improves the acceptance of the diaphragm 3
  • the force condition prolongs the service life of the diaphragm 3; when the driving mechanism 4 drives the diaphragm 3 to move toward the pump cover 8, due to the abutment of the diaphragm support 5, the diaphragm 3 can be fully pushed up and have a sufficient amount of deformation. Therefore, the volume of the cavity is changed, and the
  • the diaphragm sheet 3 may include a connecting portion and a supporting portion located on the outer edge of the connecting portion.
  • the connecting portion is driven and moved by the driving mechanism 4, and the supporting portion is assembled on the corresponding pump cover 8.
  • the outer edges of the support portions can be assembled to the pump cover 8 by snap-fitting or other methods, respectively.
  • the thickness of the connecting portion is greater than the thickness of the other parts of the diaphragm sheet 3. Since the connecting portion is driven and moved by the driving mechanism 4, the thickness of the connecting portion is designed to be thick. Even if the connecting portion is abraded, it does not affect the connecting portion.
  • the driving mechanism 4 is driven to move.
  • the thickness refers to the thickness of the diaphragm sheet 3 in its moving direction.
  • the diaphragm sheet 3 is circular. Of course, in other embodiments, the diaphragm sheet 3 may also have other regular or irregular shapes.
  • the preset area threshold may be embodied in the form of a ratio (the ratio of the contact area between the diaphragm support 5 and the abutting surface to the surface area of the abutting surface), or may be expressed in terms of area.
  • the ratio of the contact area between the diaphragm support 5 and the abutting surface to the surface area of the abutting surface is greater than or equal to 80%, such as 85%, 90%, 95%, or 100%.
  • the preset area threshold can be designed according to the displacement demand of the diaphragm pump. For example, in one embodiment, the ratio of the contact area between the diaphragm support 5 and the abutting surface to the surface area of the abutting surface is greater than or equal to 100%. That is, the diaphragm support 5 covers the abutting surface.
  • the driving mechanism 4 squeezes the diaphragm sheet 3
  • the surface of the diaphragm sheet 3 facing away from the abutting surface can be fitted with the pump cover 8 as much as possible under the squeezing action of the diaphragm support 5, and the volume of the cavity is small enough so as to Drain the pesticide from the cavity.
  • the area of the surface of the diaphragm support 5 facing the diaphragm sheet 3 is equal to the area of the abutting surface, or the area of the surface of the diaphragm support 5 facing the diaphragm sheet 3 is slightly larger than the area of the abutting surface, thereby ensuring that the diaphragm support 5 can
  • the contact surface of the diaphragm sheet 3 is covered.
  • the ratio of the contact area between the diaphragm support 5 and the abutment surface to the surface area of the abutment surface is greater than a preset ratio threshold and less than 100%, and the diaphragm support 5 does not completely cover the abutment surface.
  • the stiffness of the diaphragm support 5 is greater than a preset stiffness threshold.
  • the preset stiffness threshold can be designed according to requirements, such as 10N / m.
  • the diaphragm support 5 is a rigid piece.
  • the side of the diaphragm support 5 and the diaphragm sheet 3 away from the pump cover 8 abut against each other through the arc surface.
  • the diaphragm pump in this embodiment may be a single diaphragm pump or a double diaphragm pump.
  • the following embodiments will specifically describe the structures of the single diaphragm pump and the double diaphragm pump.
  • the diaphragm pump is used as an example in a plant protection drone.
  • the plant protection drone includes a pipe 300 and a storage tank 200 for storing pesticides. As well as the nozzle 400.
  • the diaphragm pump is a single diaphragm pump, and the pump cover 8 and the diaphragm sheet 3 each include one.
  • the driving mechanism 4 squeezes the diaphragm sheet 3 and the driving mechanism 4 stretches the diaphragm sheet 3 to form a motion cycle.
  • the single-diaphragm pump further includes a liquid inlet 11 and a liquid outlet 12 which are respectively communicated with the cavity.
  • the liquid inlet 11 can communicate with the storage tank 200 through the pipeline 300
  • the liquid outlet 12 can communicate with the storage tank 200 through the pipeline 300.
  • the shower head 400 is in communication.
  • the single diaphragm pump controls the flow of pesticides.
  • the cavity When the cavity is reduced, the cavity communicates with the pipe 300 through the liquid outlet 12 and the liquid inlet 11 is closed.
  • the pesticide in the cavity (by the cavity in the first half of the current cycle of the current moment)
  • the sucked pesticide) is discharged to the spray head 400 through the liquid outlet 12, and the spray head 400 sprays the pesticide to a designated area (field, forest, etc.).
  • the cavity When the cavity is enlarged, the cavity communicates directly or indirectly with the liquid storage tank 200 through the liquid inlet 11, the liquid outlet 12 is closed, and the pesticide in the liquid storage tank 200 enters the cavity through the liquid inlet 11.
  • liquid inlet 11 and the liquid outlet 12 are provided on the same side of the pump cover 8, which makes the structure of the single diaphragm pump more compact and facilitates the miniaturization design of the single diaphragm pump.
  • the single diaphragm pump has a small size, light weight, The advantage of small power consumption, and will not affect the plant protection drones equipped with it.
  • the diaphragm pump is a double diaphragm pump.
  • the pump cover 8 includes two, and the diaphragm sheet 3 also includes two.
  • the pump cover 8 is correspondingly matched with the two diaphragms 3, the two pump covers 8 are respectively arranged on the two sides of the pump body 1, the two diaphragms 3 are respectively fitted on the corresponding pump covers 8, and the cavity includes two diaphragms 3 A first cavity and a second cavity are formed to surround the corresponding pump cover 8.
  • the driving mechanism 4 drives the two diaphragms 3 to approach or separate from the corresponding pump cover 8 respectively, so that the sizes of the first cavity and the second cavity change in opposite directions.
  • the pump cover 8 includes a first pump cover and a second pump cover
  • the diaphragm 3 includes a first diaphragm and a second diaphragm.
  • the first diaphragm is matched with the first pump cover
  • the second diaphragm is connected with the second pump cover.
  • the first diaphragm sheet and the second diaphragm sheet move in opposite directions.
  • the driving mechanism 4 stretches the first diaphragm and squeezes the second diaphragm, the first diaphragm moves away from the first pump cover, and the second diaphragm moves near the second pump cover, so that the first cavity is enlarged and the first The two cavities shrink.
  • the driving mechanism 4 squeezes the first diaphragm sheet and stretches the second diaphragm sheet, and the driving mechanism 4 stretches the first diaphragm sheet and squeezes the second diaphragm sheet to form a motion cycle.
  • the diaphragm pump further includes a first liquid inlet and a first liquid outlet that are in communication with the first cavity, and a second liquid inlet and the second liquid outlet that are in communication with the second cavity, respectively, and the first The liquid inlet, the first liquid outlet, the second liquid inlet, and the second liquid outlet can communicate with the pipeline 300, so that the first liquid inlet, the first liquid outlet, the second liquid inlet and the The second liquid outlet is opened and closed to control the liquid flow direction of the pipe 300.
  • the process of controlling the pesticide flow direction by the double diaphragm pump includes: when the first cavity is reduced and the second cavity is enlarged, the first liquid inlet and the second liquid inlet are communicated with the pipeline 300, and the first liquid inlet and the second liquid Mouth closed.
  • the first liquid inlet and the second liquid inlet are opened under the flow of the chemical liquid, and the first liquid inlet and the second liquid outlet are closed under the flow of the chemical liquid.
  • the first cavity discharges the medicinal solution in the first cavity (the medicinal solution sucked by the first cavity in the first half of the current motion cycle) to the shower head 400 through the first liquid outlet and the pipe 300.
  • the spray liquid is sprayed to the designated area (field, forest, etc.) by the spray head 400.
  • the second cavity sucks the medicinal solution from the liquid storage tank 200 through the second liquid inlet and the pipe 300 and is stored in the second cavity. Since the first liquid inlet and the second liquid outlet are closed, the first cavity will not draw the medicinal solution from the storage tank 200 through the first liquid inlet and the pipe 300, and the second cavity will not pass through the second The liquid outlet and the pipe 300 discharge the medical liquid in the second cavity.
  • the first liquid inlet and the second liquid outlet are communicated with the pipeline 300, and the first liquid outlet and the second liquid inlet are closed.
  • the first liquid inlet and the second liquid outlet are opened under the action of the liquid medicine, and the first liquid outlet and the second liquid inlet are closed under the action of the liquid medicine.
  • the second cavity discharges the medicinal solution in the second cavity (the medicinal solution pumped by the second cavity in the first half of the current motion cycle) to the shower head 400 through the second liquid outlet and the pipe 300.
  • the spray liquid is sprayed to the designated area by the spray head 400.
  • the first cavity sucks the medicinal solution from the liquid storage tank 200 through the first liquid inlet and the pipe 300 and is stored in the first cavity. Since the first liquid outlet and the second liquid inlet are closed, the first cavity will not discharge the medicinal liquid in the first cavity through the first liquid outlet and the pipe 300, and the second cavity will not pass through the second The liquid inlet and the pipe 300 suck the chemical liquid from the liquid storage tank 200.
  • two diaphragms 3 are respectively assembled on the corresponding pump cover 8 to form two cavities, which has strong corrosion resistance, and the design of the two cavities can increase the flow rate and pressure of the diaphragm pump.
  • the first liquid inlet and the first liquid outlet, and the second liquid inlet and the second liquid outlet are respectively disposed on the same side of the corresponding pump cover 8.
  • the liquid inlet 11 and the liquid outlet 12 are arranged on the same side corresponding to the pump cover 8, the structure of the double diaphragm pump is more compact, which is beneficial to the miniaturization design of the double diaphragm pump.
  • the dual-diaphragm pump of this embodiment has the advantages of small size, light weight, and low power consumption, and does not affect the plant protection drone equipped with it.
  • the driving mechanism 4 can directly drive the diaphragm 3 to reciprocate, and can also indirectly drive the diaphragm 3 to reciprocate.
  • the driving mechanism 4 is directly connected to the side of the diaphragm sheet 3 away from the pump cover 8 by a hinge, and the driving mechanism 4 drives the diaphragm sheet 3 to approach or move away.
  • the diaphragm pump may further include a transmission mechanism 6, the driving mechanism 4 is connected to the diaphragm sheet 3 through the transmission mechanism 6, and the driving mechanism 4 is further connected to the diaphragm support 5 through the transmission mechanism 6.
  • the transmission mechanism 6 is connected to the driving mechanism 4 and the diaphragm support 5, respectively.
  • the driving mechanism 4 rotates to drive the transmission mechanism 6 to push the diaphragm support 5 and the diaphragm sheet 3 to move back and forth relative to the pump cover 8 at the same time to change the size of the cavity.
  • the driving mechanism 4 rotates in the first direction, which drives the transmission mechanism 6 to push the diaphragm support 5 and the diaphragm 3 to be closer to the pump cover 8 at the same time, and the cavity gradually decreases; the driving mechanism 4 rotates in the second direction to drive the transmission mechanism 6
  • the diaphragm support 5 and the diaphragm sheet 3 are pushed away from the pump cover 8 at the same time, and the cavity gradually increases.
  • the transmission mechanism 6 may be an eccentric rotation structure, a gear structure, or a link mechanism.
  • the transmission mechanism 6 may include an eccentric rotating member 61.
  • the driving mechanism 4 of this embodiment is connected to the eccentric rotating member 61, and the driving mechanism 4 rotates to drive the eccentric rotating member 61 to rotate, and the eccentric rotating member 61 pushes against the diaphragm 3 and moves.
  • the eccentric rotating member 61 is further described.
  • the driving mechanism 4 is connected to the eccentric rotating member 61, and the driving mechanism 4 rotates to drive the eccentric rotating member 61 to rotate, and the eccentric rotating member 61 pushes against the two diaphragm pieces 3 to move.
  • the eccentric rotating member 61 is disposed in the pump body 1 and is located between the first diaphragm and the second diaphragm. The two sides of the eccentric rotating member 61 are movable against the first diaphragm and the second diaphragm, respectively.
  • the rotational force of the driving mechanism 4 is converted into a push-pull force by the eccentric rotating member 61.
  • the distance between the eccentric rotating member 61 and the first diaphragm (the eccentricity of the eccentric rotating member 61)
  • the distance from the position to the first diaphragm) and the distance between the eccentric rotor 61 and the second diaphragm (the distance from the eccentric position of the eccentric rotor 61 to the second diaphragm) will change in the opposite direction.
  • the pushing and pulling force of the eccentric rotating member 61 may press the first diaphragm and pull the second diaphragm.
  • the first cavity is reduced and the second cavity is enlarged.
  • the pushing and pulling force of the eccentric rotating member 61 may pull the first diaphragm and squeeze it.
  • the second diaphragm causes the first cavity to expand and the second cavity to shrink.
  • the eccentric rotating member 61 may directly or indirectly abut the first diaphragm sheet and the second diaphragm sheet.
  • the two sides of the eccentric rotating member 61 directly contact the first diaphragm sheet and the second diaphragm sheet, respectively.
  • the eccentric rotating member 61 indirectly abuts the first diaphragm and the second diaphragm.
  • the transmission mechanism 6 may further include a bracket 62 and connecting members 63 provided on both sides of the bracket 62.
  • the eccentric rotating member 61 is inserted into the bracket 62, and two diaphragms 3 are located on both sides of the bracket 62 and are connected to the corresponding side. 63 phases connected.
  • the eccentric rotating member 61 rotates, and drives the bracket 62 and the connecting member 63 to push the diaphragm support 5 and the diaphragm sheet 3 to move.
  • the rotation of the eccentric rotating member 61 is converted into a unidirectional reciprocating movement of the diaphragm support 5 and the diaphragm piece 3 through the cooperation of the bracket 62 and the connecting member 63 to realize the pumping function of the pesticide.
  • the bracket 62 includes a receiving space (not shown), and the eccentric rotating member 61 is received in the receiving space and abuts the bracket 62.
  • the bracket 62 By providing the bracket 62, the abrasion of the first and second diaphragms caused by the eccentric rotating member 61 directly contacting the first and second diaphragms is reduced.
  • a gasket 7 is provided at a connection portion between the eccentric rotating member 61 and the bracket 62 in this embodiment.
  • the material of the gasket 7 is not specifically limited, and a conventional abrasion-resistant material may be selected to make the gasket 7.
  • the circumferential side wall of the eccentric rotating member 61 is in contact with the inner side wall of the bracket 62, and the washer 7 is an anti-wear washer.
  • a part of the eccentric rotating member 61 is in abutment with the inner side wall of the bracket 62, and the gasket 7 is a piece of structural member, which reduces the cost and reduces the size requirements of the eccentric rotating member 61 and the bracket 62. .
  • the eccentric rotating member 61 in this embodiment may be an eccentric wheel, an eccentric bearing, or other eccentric rotating structures. Specifically, the type of the eccentric rotating member 61 may be selected according to requirements.
  • the connecting member 63 is integrally formed on the outer sidewall of the bracket 62. In other embodiments, the connecting member 63 and the bracket 62 are separately provided. Optionally, the bracket 62 is provided with a plug-in slot, and the connecting member 63 is plugged in the plug-in slot. In this embodiment, the connecting member 63 may be a screw, or may be another structural member.
  • the fixing method between the diaphragm support 5 and the connecting member 63 may be any existing fixing method.
  • the diaphragm support 5 is sleeved and fixed on the connecting member 63.
  • the diaphragm support 5 may also be fixed to the connecting member 63 by means of screwing, snapping, or the like.
  • the driving mechanism 4 may include a motor.
  • the main shaft of the motor extends into the pump body 1 and is connected to the transmission mechanism 6, so that the driving force is transmitted from the transmission mechanism 6 to the diaphragm 3 to drive the diaphragm 3. mobile.
  • the cooperation between the motor and the transmission mechanism 6 will be described by taking the eccentric rotating member 61 as an eccentric wheel as an example.
  • the main shaft passes through an eccentric wheel and a bracket 62.
  • the main shaft may be fixed on the bottom of the bracket 62 by a fixing block.
  • the diaphragm pump may further include a protective shell, which fixes the motor cover on one side of the pump body 1 so as to fix the motor and protect the motor.
  • the diaphragm pump may further include a first check valve 10, a second check valve 20 and a valve cover 9.
  • the liquid inlet 11 and the liquid outlet 12 are respectively communicated with the cavity.
  • the first check valve 10 is used to control the opening and closing of the liquid inlet 11
  • the second check valve 20 is used to control the liquid outlet 12 Opening and closing.
  • the valve cover 9 of this embodiment is used to fix the first check valve 10 and the second check valve 20, so that the first check valve 10 and the second check valve 20 are integrated through the valve cover 9.
  • the valve cover 9 is detachably connected to the pump body 1 to fix the first check valve 10 and the second check valve 20 to the pump body 1 so as to fix the first check valve 10 and the first
  • the two check valves 20 are integrated into the pump body 1.
  • the first check valve 10 and the second check valve of this embodiment 20 is integrated into the pump body 1 through the valve cover 9, so after the diaphragm 3 is removed, the first check valve 10 and the second check valve 20 are still integrated into the pump body 1 through the valve cover 9 without It is affected by the disassembly of the diaphragm sheet 3.
  • the valve cover 9 and the pump cover 8 are separately provided. After the pump cover 8 is removed, the first check valve 10 and the second check valve 20 are still fixed on the valve cover 9 and will not be removed by the pump cover 8. influences.
  • the diaphragm pump according to the embodiment of the present invention adds a valve cover 9 provided independently of the pump cover 8, integrates two check valves (the first check valve 10 and the second check valve 20) on the valve cover 9, and Through the detachable connection between the valve cover 9 and the pump body 1, two check valves are integrated into the pump body 1, and the two check valves are not affected by the removal of the pump cover 8 and the diaphragm 3, thereby avoiding the single check valve. Risk of losing the check valve; in addition, the two check valves are fixed by the bonnet 9, eliminating the need to design a separate valve seat for each check valve, reducing the number of parts and saving manufacturing and installation costs.
  • the first check valve 10 of this embodiment includes a first valve core 101 and a first elastic member 102.
  • the first valve core 101 and the first elastic member 102 cooperate.
  • the first valve core 101 is fixed on the pump body 1.
  • An elastic member 102 is fixed on the valve cover 9. Specifically, one end of the first valve core 101 is fixedly connected to the first elastic member 102 and the other end is fixedly connected to the pump body 1.
  • One end of the first elastic member 102 remote from the first valve core 101 is fixedly connected to the valve cover 9.
  • the fixing manner of the first valve element 101 and the pump body 1 can be set as required.
  • the first valve element 101 can be directly fixed on the pump body 1 or indirectly fixed on the pump body 1.
  • the first valve element 101 may be indirectly fixed to the pump body 1 through a valve seat.
  • the pump body 1 is provided with a first groove (not shown), and the first valve core 101 is inserted in the first groove.
  • the fixing manner of the first elastic member 102 and the valve cover 9 can also be set as required.
  • the valve cover 9 is provided with a first protrusion 92, and the first elastic member 102 is sleeved and fixed on the first protrusion 92.
  • the first groove and the first protrusion 92 are opposite to each other, which makes the structure more compact.
  • the first elastic member 102 is a spring, one end of which is sleeved and fixed on the first protrusion 92, and the other end of which is sleeved and fixed on the first valve core 101. It can be understood that the first elastic member 102 can also be other elastic structures, and the fixing manner between the first elastic member 102 and the valve cover 9 is not limited to the above implementation.
  • the second check valve 20 of this embodiment includes a second valve core 201 and a second elastic member 202.
  • the second valve core 201 is matched with the second elastic member 202, and the second valve core 201 is fixed on the valve cover 9.
  • the two elastic members 202 are fixed on the pump body 1. Specifically, one end of the second valve element 201 is fixedly connected to the second elastic member 202, and the other end thereof is fixedly connected to the valve cover 9. One end of the second elastic member 202 remote from the second valve core 201 is fixedly connected to the pump body 1.
  • the fixing manner of the second valve core 201 and the valve cover 9 can be set as required.
  • the second valve core 201 can be directly fixed on the valve cover 9 or indirectly fixed on the valve cover 9.
  • the second valve core 201 can be indirectly fixed on the valve cover 9 through a valve seat.
  • the valve cover 9 is provided with a second groove (not shown). The second valve core 201 is inserted in the second groove.
  • the fixing manner of the second elastic member 202 and the pump body 1 may also be set according to the setting.
  • the pump body 1 is provided with a second protrusion 15, and the second elastic member 202 is sleeved and fixed in the second protrusion 15.
  • the second groove and the second protrusion 15 are opposite to each other, making the structure more compact.
  • the second elastic member 202 is a spring, one end of which is sleeved and fixed on the second protrusion 15, and the other end of which is sleeved and fixed on the second valve core 201.
  • the first elastic member 102 can also be other elastic structures, and the fixing manner between the second elastic member 202 and the pump body 1 is not limited to the above implementation.
  • the first protrusion 92 and the second groove are spaced apart from each other on the valve cover 9.
  • the valve cover 9 has a receiving groove, and the first protrusion 92 and the second groove are both received in the valve cover 9. In the storage groove, the design of the valve cover 9 is more reasonable and compact.
  • the bonnet 9 and the pump body 1 may be fixedly connected by any existing detachable connection method.
  • the bonnet 9 is provided with a first fixed connection member 91
  • the pump body 1 corresponds to the first fixed connection.
  • the component 91 is provided with a second fixed connection component 16.
  • the first fixed connection member 91 cooperates with the second fixed connection member 16 so that the valve cover 9 is detachably connected to the pump body 1.
  • the first fixed connection member 91 is a plug projection
  • the second fixed connection member 16 is a plug hole
  • the plug projection is plugged into the plug hole
  • the valve cover 9 is detachably connected to the pump body 1 on.
  • the first fixed connection member 91 and the second fixed connection member 16 are snap-fitted.
  • the valve cover 9 of this embodiment is provided between the pump body 1 and the pump cover 8.
  • the pump cover 8 is detachably connected to the pump body 1, but is separated from the valve cover 9 or is in contact with the valve cover 9 but is not connected. After the diaphragm 3 is damaged, the pump cover 8 can be removed from the pump body 1.
  • the upper and lower parts are convenient for maintenance and replacement of the diaphragm 3, and after the pump cover 8 is removed, the first check valve 10 and the second check valve 20 are still fixed to the pump body 1 through the valve cover 9, and the removal of the pump cover 8 can be seen. Whether or not the first check valve 10 and the second check valve 20 are not affected.
  • the connection method between the pump cover 8 and the pump body 1 can be selected from any existing detachable connection methods, such as screw connection, snap connection and the like.
  • the pump cover 8 is detachably connected to the pump body 1 and the valve cover 9 respectively. After the diaphragm 3 is damaged, the pump cover 8 can be removed from the pump body 1 and the valve cover 9 to facilitate the maintenance and replacement of the diaphragm 3, and after the pump cover 8 is removed, the first check valve 10 and the second one-way valve The valve 20 is still fixed to the pump body 1 through the valve cover 9. It can be seen that the removal of the pump cover 8 does not affect the first check valve 10 and the second check valve 20.
  • the connection between the pump cover 8 and the pump body 1 and the valve cover 9 can be selected from any existing detachable connection methods, such as screw connection and snap connection.
  • the first check valve 10 includes a first check valve for controlling the opening and closing of the first inlet and a second check valve for controlling the opening and closing of the second inlet
  • the second check valve 20 includes a first liquid check valve for controlling the opening and closing of the first liquid outlet and a second liquid check valve for controlling the opening and closing of the second liquid outlet.
  • the valve cover 9 includes a first valve cover 9 and a second valve cover 9. The first liquid inlet check valve and the first liquid outlet check valve are fixed on the first valve cover 9, and the first liquid inlet check valve and the first A liquid discharge check valve is detachably fixed to the pump body 1 through a first valve cover 9.
  • the second liquid inlet check valve and the second liquid outlet check valve are fixed on the second valve cover 9, and the second liquid inlet check valve and the second liquid outlet check valve are detachably fixed on the second valve cover 9.
  • the first valve cover 9 is detachably connected to a side of the pump body 1 facing the first pump cover, so as to fix the first liquid check valve and the first liquid check valve on the pump body 1.
  • the second valve cover 9 is detachably connected to a side of the pump body 1 facing the second pump cover to fix the second liquid check valve and the second liquid check valve on the pump body 1.
  • the first liquid check valve is provided opposite the second liquid check valve, and the first liquid check valve is provided opposite the second liquid check valve, which makes the structure of the double diaphragm pump more Compact design for miniaturization of dual diaphragm pumps.
  • the pump device 520 may further include a pressure relief device 2.
  • the pump body 1 is provided with a pressure relief port 13, and the liquid inlet 11 communicates with the liquid outlet 12 through a flow channel, and the pressure relief port 13 Connected with the runner.
  • the pressure relief device 2 is disposed at the pressure relief port 13.
  • the pressure relief device 2 includes a valve 21 and an elastic reset member 22.
  • the valve 21 is provided corresponding to the pressure relief port 13, and the valve 21 is used to seal the pressure relief port 13.
  • the elastic resetting member 22 is connected to the valve 21.
  • the elastic resetting member 22 of this embodiment is used to provide an elastic restoring force to the valve 21.
  • the valve 21 Under the action of the elastic restoring force of the elastic resetting member 22, the valve 21 can be urged to seal the pressure relief port 13.
  • the valve 21 When the hydraulic pressure in the pump body 1 exceeds a preset pressure threshold, the valve 21 is separated from the pressure relief port 13 under the abutment force of the pesticide, and the pesticide flows out from the pressure relief port 13, reducing the hydraulic pressure in the pump body 1.
  • the pesticide enters the flow channel in the pump body 1 through the liquid inlet 11 and is pumped to the spray head 400 through the liquid outlet 12 and the pesticide is sprayed out by the spray head 400.
  • the nozzle 400 is blocked, the path between the liquid outlet 12 and the nozzle 400 is cut off, and the pesticide cannot flow from the liquid outlet 12 to the nozzle 400, and the pesticide still enters the flow channel in the pump body 1 from the liquid inlet 11 , Which causes the hydraulic pressure in the pump body 1 to increase.
  • the pesticide When the hydraulic pressure in the pump body 1 exceeds a preset pressure threshold, the pesticide supports the valve 21, and when the pesticide holding force is greater than the elastic restoring force of the elastic reset member 22 on the valve 21, the valve 21 and the pressure relief port 13 Phase separation, the pesticide enters the flow channel in the pump body 1 through the liquid inlet 11 and then flows out through the pressure relief port 13 to achieve overpressure protection of the pump device 520.
  • both the preset pressure threshold and the holding force are positively related to the elastic restoring force, that is, the larger the elastic restoring force, the larger the preset pressure threshold and the holding force.
  • the pressure relief port 13 on the pump body 1 and adding a pressure relief device 2 to cooperate with the pressure relief port 13, when the hydraulic pressure in the pump body 1 is too high, the pressure relief device 2 and the pressure relief port 13 phases are separated, and the liquid in the pump body 1 flows out through the pressure relief port 13 to realize the overpressure protection of the pump device 520.
  • the way in which the pressure relief device 2 cooperates with the pressure relief port 13 has The cost is low, the response is more timely, and the stability is higher.
  • the liquid discharged from the pressure relief port 13 enters the pump body 1 again through the liquid intake port 11 to avoid problems such as waste of resources and environmental pollution caused by liquid leakage.
  • the pump body 1 of this embodiment may further include a liquid return port 14, the liquid return port 14 is in communication with the flow channel, and the pressure relief port 13 is communicated with the liquid return port 14 through a return channel.
  • the pesticide flowing out of the pressure relief port 13 can be re-entered into the flow path in the pump body 1 through the liquid return port 14, thereby avoiding problems such as resource waste and environmental pollution caused by liquid leakage.
  • a side of the valve 21 facing the pressure relief port 13 is provided with a poppet valve, and the cone valve is inserted into the pressure relief port 13.
  • the valve 21 is fixed in the pressure relief port 13 through the cooperation of the poppet valve and the pressure relief port 13.
  • the nozzle head 400 is blocked and the hydraulic pressure in the pump body 1 exceeds a preset pressure threshold, the pesticide holding cone valve in the pump body 1 is opened.
  • the valve 21 is opened and leaks.
  • the pressure port 13 is separated from the phase.
  • the valve 21 in this embodiment is made of a flexible material, such as rubber, plastic, and the like.
  • a flexible valve 21 when the hydraulic pressure in the pump body 1 exceeds a preset pressure threshold, the pesticide in the pump body 1 can easily open the valve 21 to achieve a pressure relief protection function.
  • the elastic reset member 22 is connected to the surface of the valve 21 facing away from the pressure relief port 13.
  • the elastic reset member 22 is integrally formed on the valve 21.
  • the surface of the valve 21 facing away from the pressure relief port 13 is provided with a fixed end, and the elastic reset member 22 is fixedly connected to the fixed end.
  • the connection manner of the elastic reset member 22 and the fixed end can be selected from any existing connection methods.
  • the elastic reset member 22 can be sleeved with the fixed end.
  • the pressure relief device 2 of this embodiment further includes a cover 23, which is fixedly connected to the pump body 1,
  • the elastic reset member 22 is movably connected to the cover 23.
  • the elastic restoring member 22 can apply different amounts of elastic restoring force to the valve 21, and the valve 21 can be released under the effect of the elastic restoring force applied by the elastic restoring member 22.
  • the pressure port 13 is sealed.
  • the cover 23 of this embodiment is covered at the pressure relief port 13, the cover 23 and the pump body 1 surround to form a receiving space, the valve 21 is received in the receiving space, and the valve 21 is fixedly connected to the inner wall of the cover 23.
  • the accommodating space accommodates the valve 21 to prevent the valve 21 from being separated from the pressure relief port 13 and lost when the pressure is released.
  • the fixed connection mode of the cover body 23 and the pump body 1 may be any existing fixed connection mode.
  • the cover body 23 and the pump body 1 are fixedly connected by a fixing member 27 (such as a bolt).
  • the cover body 23 has a first opening portion, and the elastic resetting member 22 can directly or indirectly cooperate with the first opening portion to apply different amounts of elastic restoring force to the valve 21.
  • the elastic reset member 22 of this embodiment is connected to the side of the valve 21 facing away from the pressure relief port 13, and the first opening portion is located at a preset distance from the side of the valve 21 facing away from the pressure relief port 13.
  • the first opening portion may be a circular hole or a hole of another shape. In this embodiment, the first opening portion is a circular hole.
  • the elastic resetting member 22 applies different magnitudes of elastic restoring force to the valve 21 based on different structures.
  • the elastic resetting member 22 is movably inserted in the first opening portion.
  • the elastic restoring member 22 can apply different amounts of elastic restoring force to the valve 21.
  • the elastic resetting member 22 is pressed in the first opening portion. By pressing the end of the elastic resetting member 22 away from the valve 21, the elastic resetting member 22 is gradually compressed, and the elastic restoring force applied by the elastic resetting member 22 to the valve 21 will become larger and larger.
  • the holding force required for the pesticide to open the valve 21 The size is also getting bigger.
  • the elastic reset member 22 By pulling the end of the elastic reset member 22 away from the valve 21, the elastic reset member 22 is gradually stretched, but the valve 21 is not separated from the pressure relief port 13, and the holding force required by the pesticide to open the valve 21 is also increasing. small.
  • the position of the elastic reset member 22 in the first opening portion can be moved as needed.
  • the elastic reset member 22 is made of a flexible material, such as a flexible material such as rubber or plastic.
  • the pressure relief device 2 further includes an adjusting member 24.
  • the adjusting member 24 cooperates with the elastic restoring member 22 to adjust the elastic restoring force so that the elastic restoring member 22 can apply.
  • Different sizes of elastic restoring force give the valve 21.
  • one end of the elastic reset member 22 is connected to the valve 21 and the other end is connected to the adjusting member 24, and the adjusting member 24 is rotatably inserted in the first opening portion. When the adjusting member 24 rotates relative to the first opening in the first opening portion, the adjusting member 24 can drive the expansion and contraction of the elastic resetting member 22 to adjust the elastic restoring force.
  • the adjusting member 24 rotates in the first direction in the first opening portion, the adjusting member 24 moves toward the valve 21, so that the elastic restoring member 22 is gradually compressed, and the elastic restoring force applied by the elastic restoring member 22 to the valve 21 will be As it gets larger, the holding force required for the pesticide to open the valve 21 is also getting larger.
  • the adjusting member 24 rotates in the second direction in the first opening 5111, the adjusting member 24 moves away from the valve 21, so that the elastic resetting member 22 is gradually stretched but the valve 21 is not separated from the pressure relief port 13, and the elastic resetting member 22
  • the elastic restoring force applied to the valve 21 will become smaller and smaller, and the holding force required by the pesticide to open the valve 21 will also become smaller and smaller.
  • the first direction is different from the second direction.
  • the first direction is a clockwise direction
  • the second direction is a counterclockwise direction.
  • the adjusting member 24 can be rotated as needed.
  • the type of the elastic restoring member 22 may be selected according to requirements.
  • the elastic restoring member 22 may be made of a flexible material, such as a flexible material such as rubber or plastic; optionally, the elastic restoring member 22 is a spring.
  • the type of the adjusting member 24 can also be selected according to requirements.
  • the adjusting member 24 is a threaded member, such as a screw, and the threaded member is rotationally connected to the first opening.
  • the elastic resetting member 22 is a spring, and the adjusting member 24 is a screw. One end of the spring is sleeved on the fixed end, and the other end is sleeved on the screw.
  • a part of the adjusting member 24 is provided with a first opening portion and is exposed outside the first opening portion for the user to adjust.
  • the pressure relief device 2 of this embodiment may further include a travel switch 25, the elastic reset member 22 is in contact with one end of the valve 21, and the travel switch 25 is in contact with the other end of the valve 21, so as to release the pressure.
  • the structural distribution of the pressing device 2 is more reasonable and compact.
  • the elastic reset member 22 and the travel switch 25 are in contact with the surface of the valve 21 facing away from the pressure relief port 13.
  • the pesticide in the pump body 1 opens the valve 21, so that the valve 21 is separated from the pressure relief port 13, and the valve 21 pushes the travel switch 25 to move.
  • the switch 25 can detect the amount of movement of the valve 21 in time, thereby transmitting an overpressure signal to the back end (control center).
  • the cover 23 of this embodiment has a second opening portion, and the limit switch 25 is inserted into the second opening portion.
  • the limit switch 25 is fixed through the second opening portion to prevent the limit switch 25 from being lost.
  • the travel switch 25 is movably inserted in the second opening portion.
  • the pressure relief device 2 of this embodiment may further include an auxiliary member 26, which is provided on a surface of the valve 21 facing away from the pressure relief port 13, a stroke switch 25 and an elastic reset member 22 is in contact with the valve 21 through an auxiliary member 26.
  • an auxiliary member 26 By providing the auxiliary member 26, the flexible valve 21 can better seal the pressure relief port 13, and when the valve 21 is separated from the pressure relief port 13, the movement of the valve 21 is transmitted to the travel switch 25 in time.
  • the auxiliary member 26 of this embodiment is provided with a third opening portion.
  • the elastic resetting member 22 can abut the valve 21 through the auxiliary member 26 in different ways.
  • the elastic resetting member 22 can pass through a third opening to connect with the valve 21.
  • a portion (fixed end) of the valve 21 passes through the third opening portion and is connected to the elastic reset member 22.
  • the position switch 25 can also contact the valve 21 through the auxiliary member 26 in different ways.
  • the surface of the auxiliary member 26 and the valve 21 facing away from the pressure relief port 13 is fixedly connected.
  • the auxiliary member 26 faces the valve 21 facing away.
  • the surface of the pressure relief port 13 is fixedly connected by bonding, snapping or other methods.
  • the auxiliary member 26 is accommodated in a receiving space formed by the cover 23 and the pump body 1, and the auxiliary member 26 is movably connected to the inner side wall of the cover 23.
  • the auxiliary component 26 in this embodiment is a rigid component, such as a stainless steel component.
  • the auxiliary piece 26 is a rigid sheet-like structure.
  • the auxiliary piece 26 of the rigid sheet-like structure can not only make the flexible valve 21 better seal and release pressure without adding too much weight to the pressure relief device 2
  • the port 13 can also transmit the movement of the valve 21 to the stroke switch 25 in time when the valve 21 is separated from the pressure relief port 13.
  • the driving mechanism 4 of this embodiment includes a motor. Further, in conjunction with FIGS. 18 to 22, the motor may include a motor main body 41, a motor base 42, a motor shaft 43 (ie, a main shaft), a protective cover 44, a static seal 45 and Moving seal 46.
  • the motor body 41 includes a motor rotor 411 and a motor stator 412.
  • the motor base 42 is provided with a pump body mounting surface 421, a motor mounting surface 422, and a mounting hole 423.
  • the pump body mounting surface 421 is used to mount the pump body 1 of the diaphragm pump, and the motor mounting surface 422 is used to mount the motor body 41.
  • the pump body mounting surface 421 and the motor mounting surface 422 of this embodiment are located on opposite sides of the motor base 42, respectively, that is, the pump body mounting surface 421 and the motor mounting surface 422 are opposite to each other. Further, the mounting hole 423 penetrates the motor mounting surface 422 and the pump body mounting surface 421.
  • the motor shaft 43 of this embodiment is installed in the mounting hole 423.
  • the motor shaft 43 includes a connection end and a power output end.
  • the connection end protrudes from one end of the mounting hole 423, and the power output end protrudes from the other end of the mounting hole 423.
  • the connection end is used for fixed connection with the motor main body 41, and the power output end is used for outputting power to drive the diaphragm 3 of the diaphragm pump to reciprocate.
  • the motor rotor 411 is fixedly connected to the motor shaft 43, and the motor rotor 411 is used to drive the motor shaft 43 to rotate.
  • the motor rotor 411 rotates and the motor shaft 43 rotates synchronously; optionally, the motor shaft 43 and the electronic rotor rotate asynchronously.
  • the motor stator 412 is used to cooperate with the motor rotor 411. The cooperation manner between the electronic stator, the motor rotor 411, and the motor shaft 43 is the prior art, and is not specifically described here.
  • the protective cover 44 is detachably connected to the motor mounting surface 422, and the protective cover 44 and the motor base 42 together form an accommodation cavity.
  • the connection end of the motor shaft 43, the motor rotor 411, and the motor stator 412 are housed in In the accommodating cavity, the components such as the motor rotor 411 and the motor stator 412 are sealed by the accommodating cavity, thereby protecting the components such as the motor rotor 411 and the motor stator 412.
  • the static seal 45 of this embodiment is provided at the connection between the protective cover 44 and the motor base 42, and the static seal between the protective cover 44 and the motor base 42 is achieved by the static seal 45 to prevent liquid from the protective cover 44 and the motor base 42.
  • the gap at the connection enters the receiving cavity.
  • the movable seal 46 is housed in the mounting hole 423, and one end of the movable seal 46 abuts the outer circumferential surface of the motor shaft 43 near the power output end, and the other end contacts the inner side wall of the mounting hole 423.
  • the dynamic seal between the outer circumferential surface of the motor shaft 43 near the power output end and the side wall of the mounting hole 423 prevents liquid from entering the accommodation from the gap between the outer circumferential surface of the motor shaft 43 near the power output end and the side wall of the mounting hole 423. Cavity.
  • a static seal 45 is provided at the connection between the protective cover 44 and the motor base 42
  • a dynamic seal 46 is provided at the connection between the motor shaft 43 and the mounting hole 423.
  • the combination of dynamic and static sealing is adopted. In this way, the motor is isolated from the outside world, preventing liquid from entering the motor from the connection between the protective cover 44 and the motor base 42, the connection between the motor shaft 43 and the mounting hole 423, effectively protecting the motor and increasing the service life of the motor.
  • the protective cover 44 and the motor mounting surface 422 can be fitted by detachable connection methods such as snap-on, screw connection, and snap-in connection.
  • the motor mounting surface 422 is provided with a first fixed connection member
  • the protective cover 44 corresponds to the first
  • the fixed connection member is provided with a second fixed connection member.
  • the first fixed connecting member is matched with the second fixed connecting member so that the protective cover 44 is detachably connected to the motor mounting surface 422.
  • the first fixed connection member is a screw hole
  • the second fixed connection member is a screw.
  • the static seal 45 may be a seal ring or other structures capable of achieving a static seal.
  • the static seal 45 is a seal ring.
  • the motor base 42 is provided with a mounting flange on the motor mounting surface 422, a sealing ring is sleeved and fixed on the mounting flange of the motor base 42, and a protective cover 44 is sleeved and fixed on the mounting flange of the motor base 42, and is The seal ring abuts, and by providing the seal ring, a sealed connection between the protective cover 44 and the mounting flange is achieved.
  • the seal ring of this embodiment may be a rubber seal ring, or may be another flexible seal ring.
  • the dynamic seal 46 may be a sealing frame or other structures capable of achieving dynamic sealing.
  • the movable seal 46 is a seal skeleton, and the seal skeleton is ring-shaped.
  • the ring-shaped seal skeleton is sleeved on the motor shaft 43. By setting the ring-shaped seal skeleton, the outer shaft surface of the motor shaft 43 close to the power output end is realized. Sealed with the inner wall of the mounting hole 423.
  • the specific structure of the sealing skeleton can be designed according to requirements.
  • the side of the sealing skeleton facing the motor shaft 43 is provided with a first A recessed portion 461 and first abutment portions 462 and second abutment portions 463 provided on both sides of the first recessed portion 461, respectively.
  • the first abutment portion 462 and the second abutment portion 463 are along the axis of the motor shaft 43. ⁇ distributed.
  • both the first abutting portion 462 and the second abutting portion 463 abut against the outer circumferential surface of the motor shaft 43.
  • the weight of the seal frame is reduced; and by the first abutment portion 462 and the second abutment portion 463 located on both sides of the first recessed portion 461, the outer periphery of the seal frame and the motor shaft 43 is realized
  • the connection at different positions on the surface ensures a sealed connection between the sealing skeleton and the outer peripheral surface of the motor shaft 43.
  • a third contact portion 464 is provided on the side of the sealing skeleton remote from the motor shaft 43, and the inner wall of the mounting hole 423 is provided.
  • There is a stepped portion and the third abutting portion 464 is in abutment with the stepped portion.
  • the third contact portion 464 and the first contact portion 462 and / or the third contact portion 464 A second recessed portion 465 is provided between the first recessed portion 461 and the first recessed portion 461.
  • the recessed direction of the second recessed portion 465 is toward the power output end.
  • the motor of this embodiment may further include a first bearing 47, and the first bearing 47 is sleeved and fixed on the power output end.
  • the first bearing 47 may be directly connected to the diaphragm 3 or connected to the diaphragm 3 through a transmission mechanism 6 to directly or indirectly transmit the power output from the power output end to the diaphragm 3 to drive the diaphragm 3 to reciprocate.
  • the first bearing 47 of this embodiment is exposed from the motor.
  • the first bearing 47 is a waterproof bearing, which is beneficial to the waterproof protection of the first bearing 47.
  • the motor shaft 43 of this embodiment is rotatably inserted into the mounting hole 423 through a second bearing 410.
  • the second bearing 410 is located in the mounting hole 423 and is disposed near the power output end, and the movable seal 46 is close to the second bearing. 410 settings.
  • the motor rotor 411 is sleeved on the motor shaft 43, and the motor rotor 411 rotates to drive the motor shaft 43 to rotate.
  • the motor rotor 411 and the motor shaft 43 are integrally formed, and the motor rotor 411 rotates to drive the motor shaft 43 to rotate synchronously.
  • the motor rotor 411 and the motor shaft 43 are independent components, and the motor rotor 411 is fixedly sleeved on the motor shaft 43.
  • the motor shaft 43 can rotate synchronously or asynchronously with the motor rotor 411.
  • the motor stator 412 is rotatably sleeved on the motor shaft 43 and is located in the motor rotor 411. When the motor is operating, the motor stator 412 remains stationary. Optionally, the motor stator 412 is rotatably sleeved on the motor shaft 43 through the third bearing 420.
  • the motor rotor 411 in this embodiment includes a rotor coil, and the motor stator 412 includes a stator coil.
  • the rotor coil and the stator coil cooperate to make the motor rotor 411 rotate.
  • the motor of this embodiment may further include an electrical interface 413 and an electrical plug 48.
  • the electrical interface 413 is provided on the motor base 42, and the electrical interface 413 is electrically connected to the rotor coil and the stator coil, respectively.
  • the electrical plug 48 of this embodiment is detachably and electrically connected to the electrical interface 413.
  • An external power source is connected through the electrical plug 48 to supply power to the motor.
  • the rotor coil and the stator coil are electrically connected and the motor rotor 411 rotates.
  • the motor in this embodiment may further include a circuit board 414, which is used to control the motor operation and / or detect the motor working parameters.
  • the electrical interface 413 is electrically connected to the rotor coil and the stator coil respectively through a circuit board 414.
  • the circuit board 414 is housed in the accommodating cavity, and the circuit board 414 is sleeved on the motor shaft 43.
  • the circuit board 414 is located between the movable seal 46 and the motor stator 412.
  • the motor of this embodiment may further include a sealing structure 49 that is disposed on an inner side wall of the electrical interface 413.
  • a sealing structure 49 that is disposed on an inner side wall of the electrical interface 413.
  • the sealing structure 49 of this embodiment is a flexible sealing ring, such as a rubber sealing ring.
  • the sealing structure 49 is used to statically seal the connection between the electrical interface 413 and the electrical plug 48, and prevent liquid from leaking from the gap between the electrical interface 413 and the electrical plug 48. Enter the receiving cavity.
  • the fixed connection between the sealing structure 49 and the electrical interface 413 can be selected from any existing connection methods.
  • the outer wall of the sealing structure 49 is provided with a protrusion, and the corresponding position of the electrical interface 413 is provided with a groove. Groove fit.
  • the motor base 42 is provided with a third fixed connection member adjacent to the electrical interface 413, and the electric plug 48 is provided with a fourth fixed connection member corresponding to the third fixed connection member, and the third fixed connection And the fourth fixed connecting member are matched so that the electrical plug 48 and the electrical interface 413 are detachably connected.
  • the third fixed connecting member is a screw hole
  • the fourth fixed connecting member is a screw.
  • the waterproof level of the motor can reach IP68, which can prevent liquid from entering the motor, effectively protect the motor, and increase the service life of the motor.
  • the pressure relief port 13 and the motor are respectively disposed on opposite sides of the pump body 1 (or other different sides on the pump body 1) to prevent pesticides flowing out of the pressure relief port 13 from entering the motor.
  • a second embodiment of the present invention provides an agricultural plant protection machine, including a frame 100, a liquid storage tank 200 for storing a medicinal solution, a pipe 300 communicating with the liquid storage tank 200, a plurality of spray heads 400, and the above.
  • the airborne spraying system 500 of the first embodiment is not limited to a frame 100, a liquid storage tank 200 for storing a medicinal solution, a pipe 300 communicating with the liquid storage tank 200, a plurality of spray heads 400, and the above.
  • the airborne spraying system 500 of the first embodiment including a frame 100, a liquid storage tank 200 for storing a medicinal solution, a pipe 300 communicating with the liquid storage tank 200, a plurality of spray heads 400, and the above.
  • a plurality of pump devices 520 of the airborne spraying system 500 are connected between the liquid storage tank 200 and the corresponding spray head 400 through a pipeline 300.
  • the pump device 520 is used for pumping the liquid medicine in the liquid storage tank 200 to
  • the corresponding spray head 400 sprays the medicinal solution from the spray head 400 and sprays pesticides on the crops.
  • the water separator 540 of the airborne spraying system 500 in this embodiment includes an inlet and a plurality of outlets.
  • the inlet of the water separator 540 is in communication with the liquid storage tank 200.
  • the inlet of the water separator 540 communicates with the liquid storage tank 200 directly or through a pipe 300.
  • the water inlet of each pump device 520 communicates with the water separator 540 through an outlet of the water separator 540.
  • the water inlet of each pump device 520 communicates with the corresponding outlet directly or through the pipeline 300.
  • the water outlet of each pump device 520 communicates with the corresponding spray head 400 through a pipe 300.
  • the liquid medicine in the liquid storage tank 200 enters into the water separator 540 through the inlet of the water separator 540.
  • the water separator 540 evenly distributes the liquid medicine to each pump device 520, and the multiple liquid liquid pumps 520 pump the liquid medicine to the corresponding
  • the spray head 400 sprays the medicinal solution, and sprays the medicinal solution on the crops.
  • the pump device 520 is a diaphragm pump.
  • the liquid inlet 11 of the diaphragm pump communicates with the liquid storage tank 200 through a pipe 300, and the liquid outlet 12 communicates with the spray head 400 through a pipe 300.
  • the diaphragm pump pumps the pesticide from the liquid storage tank 200 to the spray head 400, and the spray liquid is sprayed out by the spray head 400, and the pesticide is sprayed on the crops.
  • the agricultural plant protection machine in this embodiment may be a plant protection drone, or a pesticide spraying vehicle or a human spraying device.
  • the mounting bracket 560 of the airborne spray system 500 is fixedly connected to the rack 100.
  • the rack 100 includes a fuselage 110 and a tripod 120 connected to the bottom of the fuselage 110, and a mounting bracket 560 is fixedly connected to the bottom of the fuselage 110.
  • the fixing connection method between the mounting bracket 560 and the bottom of the fuselage 110 can be selected from any existing fixing methods, such as threading, snapping, and the like.
  • the rack 100 may further include an arm 130 connected to the body 110, and the spray head 400 is disposed at an end of the arm 130 remote from the body 110.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un système de pulvérisation embarqué (500) pour une machine de protection de plante agricole, et une machine de protection de plante agricole. Le système de pulvérisation embarqué (500) comprend un râtelier de fixation (510), de multiples dispositifs de pompe (520) et de multiples connecteurs (530), le râtelier de fixation étant pourvu de multiples ouvertures (511), chaque ouverture comprenant une première ouverture (5111) et une seconde ouverture (5112) en communication avec la première ouverture (5111), et l'ouverture de la première ouverture (5111) étant plus grande que celle de la seconde ouverture (5112) ; et chaque connecteur (530) a un corps de liaison (531) et une partie d'arrêt (532), le corps de liaison (531) étant relié de à demeure à un dispositif de pompe correspondant (520), la partie d'arrêt (532) étant disposée sur le corps de liaison (531), et la taille de la partie d'arrêt (532) étant supérieure à celle de l'ouverture de la seconde ouverture (5112) et inférieure ou égale à celle de l'ouverture de la première ouverture (5111), de telle sorte que la partie d'arrêt (532) peut passer à travers la première ouverture (5111), mais ne peut pas passer à travers la seconde ouverture (5112). Lorsque le connecteur (530) se loge dans l'ouverture (511), la partie d'arrêt (532) peut passer à travers la première ouverture (5111), et le corps de liaison (531) peut coulisser dans la seconde ouverture (5112) depuis la première ouverture (5111), de telle sorte que la partie d'arrêt (532) est arrêtée par la périphérie de la seconde ouverture (5112).
PCT/CN2018/109199 2018-09-30 2018-09-30 Système de pulvérisation embarqué pour machine de protection de plante agricole, et machine de protection de plante agricole WO2020062292A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880040641.6A CN110799418A (zh) 2018-09-30 2018-09-30 农业植保机的机载喷洒系统及农业植保机
PCT/CN2018/109199 WO2020062292A1 (fr) 2018-09-30 2018-09-30 Système de pulvérisation embarqué pour machine de protection de plante agricole, et machine de protection de plante agricole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/109199 WO2020062292A1 (fr) 2018-09-30 2018-09-30 Système de pulvérisation embarqué pour machine de protection de plante agricole, et machine de protection de plante agricole

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WO2020062292A1 true WO2020062292A1 (fr) 2020-04-02

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CN214875613U (zh) * 2020-11-09 2021-11-26 深圳市大疆创新科技有限公司 安装支架、泵组件及机械设备

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JP2012126216A (ja) * 2010-12-14 2012-07-05 New Delta Industrial Co Ltd 薬剤散布装置
CN204279920U (zh) * 2014-11-04 2015-04-22 深圳市大疆创新科技有限公司 锁定机构,具有锁定机构的螺旋桨及飞行器
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