WO2019061160A1 - 泵装置及具有其的植保无人机 - Google Patents
泵装置及具有其的植保无人机 Download PDFInfo
- Publication number
- WO2019061160A1 WO2019061160A1 PCT/CN2017/104016 CN2017104016W WO2019061160A1 WO 2019061160 A1 WO2019061160 A1 WO 2019061160A1 CN 2017104016 W CN2017104016 W CN 2017104016W WO 2019061160 A1 WO2019061160 A1 WO 2019061160A1
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- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- check valve
- liquid inlet
- liquid outlet
- cavity
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
- F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/028—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like flexible member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
Definitions
- the present invention relates to the field of driving, and in particular to a pump device and a plant protection drone having the same.
- Plant protection drones are used to achieve spraying operations, and can spray liquid medicine, seeds, powders, and the like. At present, most pumps are used to drive plant protection drones to achieve spraying operations. Due to the corrosive nature of the liquid, the pump needs to have a certain corrosion resistance. Further, in order to be mounted on the plant protection drone, the volume and weight of the pump device should not be too large, so it is necessary to design a pump device with a suitable volume and weight.
- the invention provides a pump device and a plant protection drone with the same.
- a pump device for use in a plant protection drone, the plant protection drone comprising a pipe, the pump device comprising a body, a cover body respectively covering the two sides of the body, and a two diaphragms in the body and a driving mechanism respectively connected to the two diaphragms; wherein the two diaphragms are respectively mounted on the corresponding cover body and surrounded by the corresponding cover body to form the first cavity And a second cavity; the pump device further includes a first liquid inlet and a first liquid outlet respectively communicating with the first cavity and a second liquid inlet respectively communicating with the second cavity And the second liquid outlet, the first liquid inlet and the first liquid outlet, the second liquid inlet and the second liquid outlet are respectively disposed on the same side of the corresponding cover, and The first liquid inlet, the first liquid outlet, the second liquid inlet and the second liquid outlet can communicate with the pipe; the driving mechanism drives the two diaphragms respectively corresponding to the corresponding cover Approaching or
- a planting drone comprising a body, a reservoir for storing a liquid medicine, a pipe communicating with the reservoir, and a spray assembly, further comprising a pump device, the pump The device is connected between the liquid storage tank and the spray assembly through the pipe;
- the pump device comprises a body, a cover body respectively covering the two sides of the body, two diaphragms disposed in the body, and two The diaphragm is respectively connected to the driving mechanism; wherein the two diaphragms are respectively mounted on the corresponding cover body and surrounded by the corresponding cover body to form the first cavity and the second cavity;
- the pump device further includes respectively a first liquid inlet and a first liquid outlet communicating with the first cavity, and a second liquid inlet and a second liquid outlet respectively communicating with the second cavity, the first liquid inlet And the first liquid outlet, the second liquid inlet and the second liquid outlet are respectively disposed on the same side of the corresponding cover body, and the first liquid inlet, the first liquid
- the two diaphragms are respectively assembled on the corresponding cover body to form two cavities, which have strong corrosion resistance, and the design of the two cavities can increase the pump device.
- the liquid inlet port and the liquid outlet port are disposed on the same side of the corresponding cover body, so that the structure of the pump device is more compact, which facilitates the miniaturization design of the pump device.
- the pump device of the present invention has the advantages of small size, light weight, and low power consumption, and does not affect the plant protection drone that carries it.
- Figure 1 is a cross-sectional view showing a pump device in an embodiment of the present invention
- FIG. 2 is a schematic exploded view showing the structure of a pump device according to an embodiment of the present invention
- Figure 3 is a cross-sectional view of the pump device in another direction in an embodiment of the present invention.
- Figure 4 is a perspective view of a pump device in accordance with an embodiment of the present invention.
- Figure 5 is a perspective view of the pump device in another direction in an embodiment of the present invention.
- Figure 6 is a perspective view of a plant protection drone in accordance with an embodiment of the present invention.
- 100 fuselage; 200: liquid storage tank; 300: pipeline; 400: spray assembly; 500: pump device; 600: tripod; 700: arm;
- cover body 21: first cover body; 21a: first cavity; 22: second cover body; 22a: second cavity;
- diaphragm piece 31: first diaphragm piece; 31a: first connecting portion; 31b: first supporting portion; 31c: first guiding portion; 32: second diaphragm piece; 32a: second connecting portion; 32b: a second support portion; 32c: a second flow guiding portion;
- 51 a first liquid inlet check valve
- 511 a first inlet valve seat
- 512 a first inlet valve core
- 513 a first elastic member
- a first liquid discharge check valve 521: a first liquid outlet valve seat; 522: a first liquid discharge valve core; 523: a second elastic member;
- an embodiment of the present invention provides a pump device 500.
- the pump device 500 of the present invention can be applied to plant protection drones or other spray equipment to provide spray drive power to the plant protection drone or other spray equipment. This embodiment is further illustrated by using the pump device 500 as a plant protection drone as an example.
- the plant protection drone may include a fuselage 100, a liquid storage tank 200 for storing a chemical liquid, a pipe 300 communicating with the liquid storage tank 200, and a spray assembly 400.
- the pump device 500 is connected between the liquid storage tank 200 and the spray assembly 400 through the duct 300, thereby controlling the spray assembly 400 to spray liquid (medicine liquid).
- the plant protection drone may further include a stand 600 connected to both sides of the bottom of the body 100.
- One end of the liquid storage tank 200 is fixed on one side of the tripod 600, and the other end is fixed on the other side stand 600.
- the manner in which the liquid storage tank 200 is assembled to the tripod 600 is not specifically limited, and the liquid storage tank 200 may be fixed on the tripod 600 by a fixing member such as a screw, or may be snapped.
- the storage tank 200 is fixed to the stand 600 in a manner of connection.
- the liquid tank 200 may also be hung at the bottom of the fuselage 100 or the other tank 200 may be mounted at other locations of the fuselage 100.
- the pump device 500 is fixed on one side of the tripod 600. Of course, the pump device 500 can also be fixed on the body 100.
- the fixed position of the pump device 500 can be selected according to the fixed position of the liquid storage tank 200 to improve The pump device 500 draws the efficiency of the liquid medicine in the liquid storage tank 200, thereby improving the efficiency of the plant protection drone spraying the liquid medicine.
- the plant protection drone may further include an arm 700 connected to both sides of the fuselage 100 and a propeller assembly disposed on a side of the arm away from the fuselage 100 (not shown in the figure) Out).
- the spray assembly 400 is disposed on a side of the arm 700 away from the body 100.
- the spray assembly 400 can be secured to the arm 700 by snapping or screwing or other securing means.
- the spray assembly 400 of the present embodiment includes at least a spray head.
- the pump device 500 can include a body 1 , a cover body 2 respectively covering the two sides of the body 1 , two diaphragm sheets 3 disposed in the body 1 , and two diaphragm sheets 3 .
- the body 1 is provided with a diaphragm cavity 1a, and the two diaphragm pieces 3 are received in the diaphragm cavity 1a and are respectively assembled on the corresponding cover body 2.
- the two diaphragm sheets 3 respectively surround the corresponding cover body 2 to form a first cavity 21a and a second cavity 22a.
- the cover body 2 includes a first cover body 21 and a second cover body 22, and the two diaphragm pieces 3 are a first diaphragm piece 31 and a second diaphragm piece 32, respectively.
- the first cover 21, the first diaphragm piece 31, the second diaphragm piece 32, and the second cover 22 of the present embodiment are disposed in order from left to right.
- the first diaphragm piece 31 is mounted on the first cover body 21, and the first diaphragm piece 31 and the first cover body 21 surround the first cavity 21a.
- the second diaphragm 32 is mounted on the second cover 22, and the second diaphragm 32 and the second cover 22 surround the second cavity 22a.
- the pump device 500 may further include a first liquid inlet, a first liquid outlet, a second liquid inlet, and a second liquid outlet (a first liquid inlet, a first liquid outlet, a second liquid inlet, and Not shown or marked in the second outlet port diagram).
- the first liquid inlet and the first liquid outlet respectively communicate with the first cavity 21a
- the second liquid inlet and the second liquid outlet communicate with the second cavity 22a, respectively.
- the first liquid inlet and the first liquid outlet, the second liquid inlet and the second liquid outlet are respectively disposed on the same side of the corresponding cover 2, specifically The first liquid inlet and the first liquid outlet are disposed on the same side of the first cover 21, and the second liquid inlet and the second liquid outlet are disposed in the second cavity The same side of 22a.
- first liquid inlet, the first liquid outlet, the second liquid inlet and the second liquid outlet can communicate with the pipe 300, so that the first liquid inlet can be controlled by Opening and closing of a liquid outlet, a second liquid inlet and a second liquid outlet control the liquid flow direction of the pipe 300.
- the driving mechanism can drive the two diaphragm pieces 3 to be close to or away from the corresponding cover body 2, respectively, such that the sizes of the first cavity 21a and the second cavity 22a change in opposite directions.
- the first diaphragm piece 31 and the second diaphragm piece 32 are moved in opposite directions.
- the driving mechanism presses the first diaphragm piece 31 and stretches the second diaphragm piece 32, the first diaphragm piece 31 moves closer to the first cover body 21, and the second diaphragm piece 32 moves away from the
- the second cover 22 is moved such that the first cavity 21a is contracted and the second cavity 22a is enlarged.
- the driving mechanism stretches the first diaphragm piece 31 and presses the second diaphragm piece 32, the first diaphragm piece 31 moves away from the first cover body 21, and the second diaphragm piece 32 Moving closer to the second cover 22, the first cavity 21a is enlarged, and the search for the second cavity 22a is reduced.
- the driving mechanism presses the first diaphragm piece 31 and stretches the second diaphragm piece 32 and the drive
- the two processes of stretching the first diaphragm 31 and squeezing the second diaphragm 32 form a motion cycle.
- the first liquid outlet and the second liquid inlet are connected to the pipe 300.
- the first liquid inlet and the second liquid outlet are closed.
- the first liquid outlet and the second liquid inlet are opened by the flow of the liquid medicine, and the first liquid inlet and the second liquid outlet are closed by the flow of the liquid medicine.
- the first cavity 21a passes the liquid medicine in the first cavity 21a through the first liquid outlet and the pipe 300 (the first cavity 21a is pumped in the first half of the current period of time)
- the sucked liquid medicine is discharged to the spray unit 400, and the liquid medicine is sprayed by the spray unit 400 to a designated area (farm, forest, etc.).
- the second cavity 22a draws the liquid medicine from the liquid storage tank 200 through the second liquid inlet and the pipe 300 and stores it in the second cavity 22a. Since the first liquid inlet and the second liquid outlet are closed, the first cavity 21a does not suck the liquid medicine from the liquid storage tank 200 through the first liquid inlet and the pipe 300. The second chamber 22a also does not discharge the liquid medicine in the second chamber 22a through the second liquid outlet and the duct 300.
- the first liquid inlet and the second liquid outlet communicate with the pipe 300, the first liquid outlet and the second The inlet is closed.
- the first liquid inlet and the second liquid outlet are opened by the flow of the liquid medicine, and the first liquid outlet and the second liquid inlet are closed by the flow of the liquid medicine.
- the second cavity 22a passes the liquid medicine in the second cavity 22a through the second liquid outlet and the pipe 300 (the second cavity 22a is pumped in the first half of the current period of motion)
- the wicked liquid is discharged to the spray assembly 400, and the spray assembly 400 sprays the liquid to a designated area.
- the first cavity 21a sucks the liquid medicine from the liquid storage tank 200 through the first liquid inlet and the pipe 300 and stores it in the first cavity 21a. Since the first liquid outlet and the second liquid inlet are closed, the first cavity 21a does not discharge the liquid medicine in the first cavity 21a through the first liquid outlet and the pipe 300, the first The two chambers 22a also do not draw the liquid medicine from the reservoir 200 through the second liquid inlet and the duct 300.
- two diaphragm pieces 3 are respectively assembled on the corresponding cover body 2 to form two cavities, which have strong corrosion resistance, and the design of the two cavities can increase the flow rate and pressure of the pump device 500.
- the liquid inlet and the liquid outlet are provided on the same side of the corresponding cover 2, so that the structure of the pump device 500 is more compact, which facilitates the miniaturization of the pump device 500.
- the pump device 500 of the present invention has the advantages of small size, light weight, and low power consumption, and does not affect the plant protection drone that carries it.
- a side of the cover 2 facing the corresponding diaphragm piece 3 may be provided with a recess (not shown), and the design of the recess can further reduce the size of the structure.
- the first liquid inlet and the first liquid outlet and the second liquid inlet and the second liquid outlet are respectively disposed on the recess of the corresponding cover 2 .
- the first liquid inlet and the first liquid outlet are disposed on the recess of the first cover 21, and the second liquid inlet and the second liquid outlet are disposed at the The recessed portion of the second cover 22 is described.
- the first liquid inlet is adjacent to the first liquid outlet, and the second liquid inlet is adjacent to the second liquid outlet, so that the structure is more compact, thereby reducing the volume of the pump device 500. .
- the pump device 500 may further include a first liquid inlet check valve 51, a first liquid discharge check valve 52, a second liquid inlet check valve 53, and a second liquid discharge check valve 54.
- the first liquid inlet check valve 51 is configured to control the first liquid inlet opening and closing
- the first liquid outlet check valve 52 is configured to control the first liquid outlet opening and closing
- the second liquid inlet check valve 53 is for controlling the opening and closing of the second liquid inlet
- the second liquid discharging check valve 54 is for controlling the opening and closing of the second liquid outlet.
- the first liquid discharge check valve 52 and the second liquid inlet check valve 53 are opened, and the first liquid inlet check valve is opened.
- the second liquid outlet check valve 54 is closed, so that the first liquid outlet and the second liquid inlet communicate with the pipe 300, and the first liquid inlet and the second liquid outlet are closed.
- the first liquid discharge check valve 52 and the second liquid inlet check valve 53 are opened by the flow of the chemical liquid, and the first liquid inlet check valve 51 and the second liquid outlet The liquid check valve 54 is closed by the flow of the chemical liquid.
- the first liquid inlet check valve 51 and the second liquid discharge check valve 54 are opened, the first liquid discharge order The valve 52 and the second liquid inlet check valve 53 are closed such that the first liquid inlet and the second liquid outlet communicate with the pipe 300, and the first liquid outlet and the second liquid inlet are closed.
- the first liquid inlet check valve 51 and the second liquid outlet check valve 54 are opened by the flow of the chemical liquid
- the first liquid discharge check valve 52 and the second inlet The liquid check valve 53 is closed by the flow of the chemical liquid.
- the two sides of the body 1 are respectively provided with mounting cavities, and the two mounting cavities are oppositely disposed.
- the first liquid inlet check valve 51 and the first liquid discharge check valve 52, the second liquid inlet check valve 53 and the second liquid discharge check valve 54 are respectively received in corresponding installation cavities,
- the first liquid inlet check valve 51 and the first liquid discharge check valve 52 are provided opposite to the second liquid inlet check valve 53 and the second liquid discharge check valve 54, thereby improving the compactness and aesthetics of the structure.
- the first cover body 21 is provided with a mounting cavity for receiving the first liquid inlet check valve 51 and the first liquid discharge check valve 52 (see FIG. 4), and the second cover 22 is covered.
- the first liquid inlet check valve 51 is disposed on a pipe connecting the first liquid inlet and the liquid storage tank 200, and the first liquid discharge check valve 52 is disposed at the first connection.
- the liquid outlet is on the pipe of the spray assembly 400.
- the second liquid inlet check valve 53 is disposed on a pipe connecting the second liquid inlet and the liquid storage tank 200, and the second liquid discharge check valve 54 is disposed at the connection
- the two liquid outlets are on the pipe of the spray assembly 400.
- the flow direction of the liquid in each cavity can be seen in the direction of the arrow in FIG.
- each of the one-way valves may be A valve seat, a spool mounted on the valve seat, and an elastic member mated with the valve body are included.
- the spools of the first liquid inlet check valve 51 and the first liquid outlet check valve 52 are installed in opposite directions, and the spools of the second liquid inlet check valve 53 and the second liquid outlet check valve 54 Installation direction anti.
- the first liquid inlet check valve 51 may include a first inlet valve seat 511, a first inlet valve cartridge 512 mounted on the first inlet valve seat 511, and The first inlet valve core 512 is fitted with a first elastic member 513.
- the first liquid discharge check valve 52 may include a first liquid discharge valve seat 521, a first liquid discharge valve core 522 mounted on the first liquid discharge valve seat 521, and the first liquid discharge valve core 522 mating second elastic member 523.
- One end of the first inlet valve plug 512 is inserted into the first inlet valve seat 511, and the other end is connected to the first elastic member 513.
- the first elastic member 513 is away from the first inlet valve core 512.
- One end is fixed to the inner side wall of the first cover body 21.
- One end of the liquid discharge valve core can be inserted into the first liquid outlet valve seat 521, and the other end is connected to the second elastic member 523, and the second elastic member 523 is fixed away from one end of the first liquid discharge valve core 522.
- the first inlet valve core 512 is moved relative to the first inlet valve seat 511 and inserted into the second inlet valve under the elastic force of the first elastic member 513 under the impact of the chemical liquid.
- the seat 531 is detached from the second inlet valve seat 531 correspondingly such that the first liquid inlet check valve 51 is closed and opened.
- the first liquid discharge valve core 522 is moved relative to the first liquid discharge valve seat 521 to insert the second liquid discharge under the elastic force of the second elastic member 523 under the impact of the chemical liquid.
- the valve seat 541 is detached from the second liquid discharge valve seat 541 correspondingly to close and open the first liquid discharge check valve 52.
- the second liquid inlet check valve 53 may include a second inlet valve seat 531, a second inlet valve cartridge 532 mounted on the second inlet valve seat 531, and the first
- the third elastic member 533 is fitted to the second liquid valve core 532.
- the second liquid discharge check valve 54 may include a second liquid discharge valve seat 541, a second liquid discharge valve core 542 installed on the second liquid discharge valve seat 541, and the second liquid discharge valve core 542 mated fourth elastic member 543.
- One end of the inlet valve plug is inserted into the second inlet valve seat 531, and the other end is connected to the third elastic member 533.
- the third elastic member 533 is fixed away from the end of the second inlet valve core 532.
- the inner side wall of the second cover 22 is a first inlet valve core 532.
- the second inlet valve core 532 is moved relative to the second inlet valve seat 531 to be inserted into the second inlet valve under the elastic force of the third elastic member 533 under the impact of the chemical liquid.
- the seat 531 is separated from the second inlet valve seat 531, correspondingly closing and opening the second inlet check valve 53.
- the second liquid discharge valve core 542 is moved relative to the second liquid discharge valve seat 541 to insert the second liquid discharge under the elastic force of the fourth elastic member 543 under the impact of the chemical liquid.
- the valve seat 541 is separated from the second liquid outlet valve seat 541, corresponding to closing and opening the second liquid discharge check valve 54.
- the first elastic member 513, the second elastic member 523, the third elastic member 533, and the fourth elastic member 543 may be selected as a spring or other elastic structure.
- the first inlet check valve 51 and the valve seat of the first liquid discharge check valve 52 are integrally formed, that is, the first liquid inlet valve seat 511 and the first liquid outlet valve seat 521 are integrally formed, thereby being capable of forming Improve the compactness and strength of the structure.
- the first liquid inlet valve seat 511 and the first liquid outlet valve seat 521 may also be separately disposed, and the outer side wall of the first liquid inlet valve seat 511 may be abutted with the outer side wall of the first liquid outlet valve seat 521 or Direct connection for increased structural rigidity Sex.
- valve seat of the second liquid inlet check valve 53 and the second liquid outlet check valve 54 are integrally formed, that is, the second liquid inlet valve seat 531 and the second liquid outlet valve seat 541 are integrally formed, thereby being capable of integrally forming Improve the compactness and strength of the structure.
- the second liquid inlet valve seat 531 and the second liquid outlet valve seat 541 may also be separately disposed, and the outer side wall of the second liquid inlet valve seat 531 may be abutted with the outer side wall of the second liquid outlet valve seat 541 or Direct connection to increase the compactness of the structure.
- Each one-way valve may further include a sealing member 55 sleeved on the outside of the valve seat to improve the sealing ability of each one-way valve itself to prevent water leakage.
- the shape of the sealing member 55 may be adapted to the structure of the valve seat.
- the seal 55 can be a seal or other sealing structure.
- the diaphragm sheet 3 may include a connecting portion and a support portion at an outer edge of the connecting portion.
- the connecting portion is driven to move by the driving mechanism, and the supporting portion is fitted to the corresponding cover body 2.
- the first diaphragm piece 31 includes a first connecting portion 31a and a first supporting portion 31b located at an outer edge of the first connecting portion 31a, and the first connecting portion 31a is driven by the driving mechanism to be close to or Along from the first cover 21, the first support portion 31b is mounted on the first cover 21.
- the second diaphragm 32 includes a second connecting portion 32a and a second supporting portion 32b at an outer edge of the second connecting portion 32a, and the second connecting portion 32a is driven by the driving mechanism to be close to or away from the
- the second cover 22 is mounted on the second cover 22 .
- first diaphragm piece 31 and the second diaphragm piece 32 are circular.
- first diaphragm sheet 31 and the second diaphragm sheet 32 may also have other regular or irregular shapes.
- the outer edges of the first support portion 31b and the second support portion 32b may be respectively engaged to the first cover body 21 and the second cover body 22 by being snapped or otherwise.
- the thickness of the first connecting portion 31a is greater than the thickness of other portions of the first diaphragm piece 31, and the thickness of the second connecting portion 32a is greater than the thickness of other portions of the second diaphragm piece 32. Since the first connecting portion 31a and the second connecting portion 32a are driven to be driven by the driving mechanism, the thicknesses of the first connecting portion 31a and the second connecting portion 32a are designed to be thick, and even the first connecting portion 31a and the second connecting portion 32a are even thick. There is wear and does not affect the movement of the first connecting portion 31a and the second connecting portion 32a under the driving of the driving mechanism.
- the thickness refers to the thickness of the first diaphragm piece 31 and the second diaphragm piece 32 in respective moving directions.
- a side of the diaphragm 3 facing the corresponding cover 2 may be provided with a flow guiding portion, and the guiding portion is disposed between the connecting portion and the supporting portion.
- a first guiding portion 31c may be disposed on a side of the first diaphragm 31 facing the first cover 21, and the first guiding portion 31c is disposed on the first connecting portion 31a and the Between the first support portions 31b.
- a second flow guiding portion 32c may be disposed on a side of the second diaphragm 32 facing the second cover 22, and the second guiding portion 32c is located at the second connecting portion 32a and the second support Between the parts 32b.
- the first flow guiding portion 31c guides the chemical liquid into or out of the first cavity 21a
- the second flow guiding portion 32c guides the medical liquid into or out of the second cavity 22a, thereby passing through the first guiding portion.
- 31c and second flow guiding portion 32c The flow rates of the first cavity 21a and the second cavity 22a are increased, respectively.
- the flow guiding portion (including the first flow guiding portion 31c and the second flow guiding portion 32c) is a groove. Further, the groove has a smooth transition surface to accelerate the flow rate of the chemical liquid.
- the shape of the flow guiding portion is not limited thereto, and the flow guiding portion may be provided in other shapes as needed.
- the diaphragm piece 3 in the conventional diaphragm pump has a complicated shape and a large volume.
- the diaphragm piece 3 of the present embodiment has a simple structure and a small volume, and can save the manufacturing material, thereby reducing the cost.
- the diaphragm sheet 3 is provided with a Teflon layer (ie, polytetrafluoroethylene, English name: Polytetrafluoroethylene, English abbreviation: PTFE) toward the side corresponding to the cover body 2, so that the diaphragm sheet 3 forms the composite diaphragm sheet 3.
- a Teflon layer is disposed on a side of the first diaphragm 31 facing the first cover 21, and a Teflon layer is also disposed on a side of the second diaphragm 32 facing the second cover 22.
- the Teflon layer on the surfaces of the first diaphragm sheet 31 and the second diaphragm sheet 32 in a manner that the diaphragm sheet 3 is made of an expensive material in the prior art to improve the corrosion resistance, not only can the first portion be improved.
- the corrosion resistance of the cavity 21a and the second cavity 22a can also reduce the cost.
- the Teflon layer may be attached to the surfaces of the first diaphragm sheet 31 and the second diaphragm sheet 32.
- the Teflon layer may also be integrally formed on the surfaces of the first diaphragm sheet 31 and the second diaphragm sheet 32, or the Teflon layer may be disposed on the first diaphragm sheet by other means. 31 and the surface of the second diaphragm 32.
- the surface area of the Teflon layer can be set as needed to meet different corrosion resistance.
- the Teflon layer covers the side of the first diaphragm 31 facing the first cover 21 and covers the side of the second diaphragm 32 facing the second cover 22.
- the thickness of the Teflon layer can also be selected as needed to meet different corrosion resistance.
- first diaphragm piece 31 and the first liquid inlet check valve 51 and the first liquid discharge check valve 52 are separately disposed, and the second diaphragm piece 32 and the second portion are separately provided.
- the liquid inlet check valve 53 and the second liquid outlet check valve 54 are disposed separately, simplifying the product structure, improving corrosion resistance and reducing cost.
- the pump device 500 may further include a transmission mechanism for transmitting the driving force of the driving mechanism to each of the diaphragm pieces 3, thereby driving each of the diaphragm pieces 3 to be close to or away from the corresponding cover body 2 .
- the transmission mechanism is coupled to the driving mechanism, and the driving mechanism rotates to drive the transmission mechanism to push the two diaphragm pieces 3 to move back and forth to change the first cavity 21a and the second The size of the cavity 22a.
- the transmission mechanism may include an eccentric wheel 6.
- the driving mechanism is connected to the eccentric wheel 6, and the driving mechanism rotates to drive the eccentric wheel 6 to rotate, and the eccentric wheel 6 pushes against the movement of the two diaphragm pieces 3.
- the eccentric 6 is disposed in the body 1 and located between the first diaphragm piece 31 and the second diaphragm piece 32. The two sides of the eccentric wheel 6 respectively move to abut the first The diaphragm sheet 31 and the second diaphragm sheet 32.
- the rotational force of the driving mechanism is converted into a pushing force by the eccentric wheel 6.
- the distance between the eccentric wheel 6 and the first diaphragm piece 31 (the eccentric position of the eccentric wheel 6 is first to The distance between the diaphragm 31 and the distance between the eccentric 6 and the second diaphragm 32 (the eccentric position of the eccentric 6 to The distance of the second diaphragm 32 is changed in the opposite direction, and the eccentricity is gradually increased when the distance between the eccentric 6 and the first diaphragm 31 is gradually increased and the distance from the second diaphragm 32 is gradually decreased.
- the pushing and pulling force of the wheel 6 presses the first diaphragm 31 and pulls the second diaphragm 32 such that the first cavity 21a is contracted and the second cavity 22a is enlarged.
- the eccentric wheel 6 can directly abut or indirectly abut the first diaphragm piece 31 and the second diaphragm piece 32.
- both sides of the eccentric wheel 6 directly abut the first diaphragm piece 31 and the second diaphragm piece 32, respectively.
- the eccentric 6 indirectly abuts the first diaphragm sheet 31 and the second diaphragm sheet 32.
- the transmission mechanism may further include a bracket 7 , and the eccentric wheel 6 is sleeved in the bracket 7 , and the two diaphragm pieces 3 are respectively located at two sides of the bracket 7 and directly connected to the bracket 7 .
- the bracket 7 includes a receiving space (not shown), and the eccentric wheel 6 is received in the receiving space and abuts the bracket 7.
- the wear of the first diaphragm piece 31 and the second diaphragm piece 32 caused by the direct contact of the eccentric wheel 6 with the first diaphragm piece 31 and the second diaphragm piece 32 is reduced.
- the eccentric wheel 6 and the first diaphragm piece 31 can be fixedly connected by screws 8
- the eccentric wheel 6 and the second diaphragm piece 32 can also be fixedly connected by screws 8 .
- the eccentric 6 and the first diaphragm 31, the eccentric 6 and the second diaphragm 32 may be fixedly connected by other means.
- the drive mechanism may include a motor, and a spindle 41 of the motor extends into the body 1 and is coupled to the transmission mechanism to transmit a driving force from the transmission mechanism to the diaphragm. 3, in order to drive the diaphragm 3 to move.
- the main shaft 41 passes through the eccentric wheel 6 and the bracket 7. Further, the main shaft 41 can be fixed to the bottom of the bracket 7 (up, down, left and right directions of the pump device 500 shown in Fig. 1) by a fixing block.
- the pump device 500 may further include a protective case 42 that fixes the motor cover to one side of the body 1 to fix the motor and protect the motor.
- the driving mechanism can also be other types of driving mechanisms, and the type of the driving mechanism can be selected according to requirements.
Abstract
一种泵装置(500)及具有其的植保无人机，所述泵装置(500)包括本体(1)、分别盖设本体(1)两侧的盖体(2)、设于本体(1)内的两个隔膜片(3)以及与两个隔膜片(3)分别相连的驱动机构；两个隔膜片(3)分别装配在对应的盖体(2)上，并与对应的盖体(2)包围形成第一腔体(21a)和第二腔体(22a)；泵装置(500)还包括分别与第一腔体(21a)连通的第一进液口和第一出液口、分别与第二腔体(22a)连通的第二进液口和第二出液口，第一进液口和第一出液口以及第二进液口和第二出液口分别设于对应的盖体(2)的同一侧，第一进液口、第一出液口、第二进液口和第二出液口能够与植保无人机的管道(300)相连通；驱动机构驱动两个隔膜片(3)分别相对对应的盖体(2)靠近或远离，使得第一腔体(21a)和第二腔体(22a)的大小朝着相反的方向变化。该泵装置(500)体积小、功耗小。
Description
本发明涉及驱动领域，尤其涉及一种泵装置及具有其的植保无人机。
植保无人机用于实现喷洒作业，可以喷洒药液、种子、粉剂等。目前大都采用泵来驱动植保无人机来实现喷洒作业。由于药液的腐蚀性较强，泵需要具备一定的耐腐蚀能力。进一步地，为便于搭载在植保无人机上，泵装置的体积和重量均不宜过大，故需要设计一款体积和重量适宜的泵装置。
发明内容
本发明提供一种泵装置及具有其的植保无人机。
根据本发明的第一方面，提供一种泵装置，应用于植保无人机上，所述植保无人机包括管道，所述泵装置包括本体、分别盖设所述本体两侧的盖体、设于所述本体内的两个隔膜片以及与两个所述隔膜片分别相连的驱动机构；其中，两个隔膜片分别装配在对应的盖体上，并与对应的盖体包围形成第一腔体和第二腔体；所述泵装置还包括分别与所述第一腔体连通的第一进液口和第一出液口以及分别与所述第二腔体连通的第二进液口和第二出液口，所述第一进液口和所述第一出液口以及所述第二进液口和所述第二出液口分别设于对应的盖体的同一侧，且所述第一进液口、第一出液口、第二进液口和第二出液口能够与所述管道相连通；所述驱动机构驱动两个所述隔膜片分别相对对应的盖体靠近或远离，使得所述第一腔体和所述第二腔体的大小朝着相反的方向变化；当所述第一腔体缩小，所述第二腔体扩大时，所述第一出液口、第二进液口与所述管道连通，所述第一进液口、第二出液口关闭；当所述第一腔体扩大，所述第二腔体缩小时，所述第一进液口、第二出液口与所述管道连通，所述第一出液口、第二进液口关闭。
根据本发明的第二方面，提供一种植保无人机，包括机身、用于存储药液的储液箱、与储液箱相连通的管道以及喷洒组件，还包括泵装置，所述泵装置通过所述管道连接于储液箱和喷洒组件之间；所述泵装置包括本体、分别盖设所述本体两侧的盖体、设于所述本体内的两个隔膜片以及与两个所述隔膜片分别相连的驱动机构；其中，两个隔膜片分别装配在对应的盖体上，并与对应的盖体包围形成第一腔体和第二腔体；所述泵装置还包括分别与所述第一腔体连通的第一进液口和第一出液口以及分别与所述第二腔体连通的第二进液口和第二出液口，所述第一进液口和所述第一出液口以及所述第二进液口和所述第二出液口分别设于对应的盖体的同一侧，且所述第一进液口、第一出液口、第二进液口和第二出液口能够与所述管道相连通；所述驱动机构驱动两
个所述隔膜片分别相对对应的盖体靠近或远离，使得所述第一腔体和所述第二腔体的大小朝着相反的方向变化；当所述第一腔体缩小，所述第二腔体扩大时，所述第一出液口、第二进液口与所述管道连通，所述第一进液口、第二出液口关闭；当所述第一腔体扩大，所述第二腔体缩小时，所述第一进液口、第二出液口与所述管道连通，所述第一出液口、第二进液口关闭。
由以上本发明实施例提供的技术方案可见，本发明将两个隔膜片分别装配在对应的盖体上而形成两个腔体，耐腐蚀能力强，并且两个腔体的设计能够增加泵装置的流量和压力大小。进一步地，将进液口和出液口设于对应盖体的同一侧，使得泵装置的结构更加紧凑，利于泵装置的小型化设计。本发明的泵装置具备体积小、重量轻、功耗小的优势，并且不会对搭载其的植保无人机的造成影响。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施例中的泵装置的剖面图；
图2是本发明一实施例中的泵装置的结构拆分示意图；
图3是本发明一实施例中的泵装置在另一方向上的剖面图；
图4是本发明一实施例中的泵装置的立体图；
图5是本发明一实施例中的泵装置在另一方向上的立体图；
图6是本发明一实施例中的植保无人机的立体图。
附图标记：
100：机身；200：储液箱；300：管道；400：喷洒组件；500：泵装置；600：脚架；700：机臂；
1：本体；1a：隔膜腔；
2：盖体；21：第一盖体；21a：第一腔体；22：第二盖体；22a：第二腔体；
3：隔膜片；31：第一隔膜片；31a：第一连接部；31b：第一支撑部；31c：第一导流部；32：第二隔膜片；32a：第二连接部；32b：第二支撑部；32c：第二导流部；
4：电机；41：主轴；42：保护壳；
51：第一进液单向阀；511：第一进液阀座；512：第一进液阀芯；513：第一弹性件；
52：第一出液单向阀；521：第一出液阀座；522：第一出液阀芯；523：第二弹性件；
53：第二进液单向阀；531：第二进液阀座；532：第二进液阀芯；533：第三弹性件；
54：第二出液单向阀；541：第二出液阀座；542：第二出液阀芯；543：第四弹性件；
55：密封件；
6：偏心轮；
7：支架；
8：螺丝。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
下面结合附图，对本发明的泵装置500及具有其的植保无人机进行详细说明。在不冲突的情况下，下述的实施例及实施方式中的特征可以相互组合。
结合图1至图5，本发明实施例提供一种泵装置500。本发明的泵装置500可应用于植保无人机上或者其他喷洒设备上，从而为所述植保无人机或者其他喷洒设备提供喷洒驱动力。本实施例以泵装置500应用于植保无人机为例进一步说明。
结合图2至图6，所述植保无人机可包括机身100、用于存储药液的储液箱200、与储液箱200相连通的管道300以及喷洒组件400。所述泵装置500通过所述管道300连接于储液箱200和喷洒组件400之间，从而控制所述喷洒组件400喷洒液体(药液)。
参见图6，所述植保无人机还可包括连接在所述机身100底部两侧的脚架600。所述储液箱200的一端固定在其中一侧脚架600上，另一端固定在另一侧脚架600上。而本实施例对所述储液箱200装配至所述脚架600的方式不作具体限定，可通过螺丝等固定件将所述储液箱200固定在所述脚架600上，或者采用卡接连接的方式将所述储液箱200固定在所述脚架600上。当然，在其他实施例中，所述储液箱200还可挂设在机身100的底部或者将所述储液箱200装配在机身100的其他位置。
所述泵装置500固定在其中一侧的脚架600上，当然，泵装置500也可固定在机身100上，可根据储液箱200的固定位置来选择泵装置500的固定位置，以提高泵装置500抽吸储液箱200中的药液的效率，从而提高植保无人机喷洒药液的效率。
进一步地，参见图6，所述植保无人机还可包括连接在机身100两侧的机臂700以及设于所述机臂远离所述机身100一侧的螺旋桨组件(图中未标出)。所述喷洒组件400设于所述机臂700远离所述机身100的一侧。所述喷洒组件400可通过卡接或者螺丝连接或者其他固定方式固定至所述机臂700上。
另外，本实施例的喷洒组件400至少包括喷头。
参见图1，所述泵装置500可包括本体1、分别盖设所述本体1两侧的盖体2、设于所述本体1内的两个隔膜片3以及与两个所述隔膜片3分别相连的驱动机构。本实施例中，所述本体1设有隔膜腔1a，两个所述隔膜片3收容在所述隔膜腔1a内并分别装配在对应的盖体2上。两个所述隔膜片3分别与对应的盖体2包围形成第一腔体21a和第二腔体22a。具体而言，所述盖体2包括第一盖体21和第二盖体22，两个所述隔膜片3分别为第一隔膜片31和第二隔膜片32。
本实施例的第一盖体21、第一隔膜片31、第二隔膜片32和第二盖体22从左至右依次设置。其中，第一隔膜片31装配在第一盖体21上，所述第一隔膜片31与所述第一盖体21包围形成所述第一腔体21a。第二隔膜片32装配在第二盖体22上，所述第二隔膜片32与所述第二盖体22包围形成所述第二腔体22a。
所述泵装置500还可包括第一进液口、第一出液口、第二进液口和第二出液口(第一进液口、第一出液口、第二进液口和第二出液口图中未显示或未标出)。其中，所述第一进液口和第一出液口分别与所述第一腔体21a连通，所述第二进液口和第二出液口分别与所述第二腔体22a连通。本实施例中，所述第一进液口和所述第一出液口以及所述第二进液口和所述第二出液口分别设于对应的盖体2的同一侧，具体地，所述第一进液口和所述第一出液口设于第一盖体21的同一侧，所述第二进液口和所述第二出液口设于所述第二腔体22a的同一侧。
进一步地，所述第一进液口、第一出液口、第二进液口和第二出液口能够与所述管道300相连通，从而可通过控制所述第一进液口、第一出液口、第二进液口和第二出液口的启闭来控制所述管道300的液体流向。
所述驱动机构可驱动两个所述隔膜片3分别相对对应的盖体2靠近或远离，使得所述第一腔体21a和所述第二腔体22a的大小朝着相反的方向变化。本实施例中，第一隔膜片31和第二隔膜片32朝着相反的方向运动。当所述驱动机构挤压所述第一隔膜片31并拉伸所述第二隔膜片32时，所述第一隔膜片31靠近第一盖体21移动，所述第二隔膜片32远离所述第二盖体22移动，从而使得所述第一腔体21a缩小、所述第二腔体22a扩大。当所述驱动机构拉伸所述第一隔膜片31并挤压所述第二隔膜片32时，所述第一隔膜片31远离所述第一盖体21移动，所述第二隔膜片32靠近所述第二盖体22移动，从而使得所述第一腔体21a扩大、搜索第二腔体22a缩小。本实施例中，所述驱动机构挤压所述第一隔膜片31并拉伸所述第二隔膜片32以及所述驱动
机构拉伸所述第一隔膜片31并挤压所述第二隔膜片32这两个过程形成一个运动周期。
在控制所述管道300的液体流向时，当所述第一腔体21a缩小，所述第二腔体22a扩大时，所述第一出液口、第二进液口与所述管道300连通，所述第一进液口、第二出液口关闭。所述第一出液口和所述第二进液口在药液的流动作用下开启，所述第一进液口和所述第二出液口在药液的流动作用下关闭。其中，所述第一腔体21a经所述第一出液口和所述管道300将该第一腔体21a内的药液(由第一腔体21a在当前时刻的前半个运动周期中抽吸的药液)排出至所述喷洒组件400，由喷洒组件400将药液喷洒至指定区域(农田、树林等)。同时，所述第二腔体22a通过所述第二进液口和所述管道300从所述储液箱200中抽吸药液并储存在第二腔体22a内。由于第一进液口和第二出液口关闭，所述第一腔体21a不会通过所述第一进液口和所述管道300从所述储液箱200中抽吸药液，所述第二腔体22a也不会通过第二出液口和所述管道300将该第二腔体22a内的药液排出。
当所述第一腔体21a扩大，所述第二腔体22a缩小时，所述第一进液口、第二出液口与所述管道300连通，所述第一出液口、第二进液口关闭。所述第一进液口和所述第二出液口在药液的流动作用下开启，所述第一出液口和所述第二进液口在药液的流动作用下关闭。其中，所述第二腔体22a经所述第二出液口和所述管道300将该第二腔体22a内的药液(由第二腔体22a在当前时刻的前半个运动周期中抽吸的药液)排出至所述喷洒组件400，由喷洒组件400将药液喷洒至指定区域。同时，所述第一腔体21a通过所述第一进液口和所述管道300从所述储液箱200中抽吸药液并储存在第一腔体21a内。由于第一出液口和第二进液口关闭，所述第一腔体21a不会通过第一出液口和所述管道300将该第一腔体21a内的药液排出，所述第二腔体22a也不会通过所述第二进液口和所述管道300从所述储液箱200中抽吸药液。
本发明实施例中，将两个隔膜片3分别装配在对应的盖体2上而形成两个腔体，耐腐蚀能力强，并且两个腔体的设计能够增加泵装置500的流量和压力大小。进一步地，将进液口和出液口设于对应盖体2的同一侧，使得泵装置500的结构更加紧凑，利于泵装置500的小型化设计。本发明的泵装置500具备体积小、重量轻、功耗小的优势，并且不会对搭载其的植保无人机的造成影响。
参见图1、图2以及图5，所述盖体2朝向对应的隔膜片3的一侧可设有凹陷部(图中未标出)，凹陷部的设计能够进一步减小结构的尺寸。所述第一进液口和所述第一出液口以及所述第二进液口和所述第二出液口分别设于对应盖体2的凹陷部上。具体地，所述第一进液口和所述第一出液口设于所述第一盖体21的凹陷部上，所述第二进液口和所述第二出液口设于所述第二盖体22的凹陷部上。且所述第一进液口和所述第一出液口相邻，所述第二进液口和所述第二出液口相邻，使得结构更加紧凑，从而减小泵装置500的体积。
所述第一进液口、第一出液口、第二进液口以及第二出液口的启闭可通过单向阀或者其他方式控制。本实施例中，所述泵装置500还可包括第一进液单向阀51、第一出液单向阀52、第二进液单向阀53以及第二出液单向阀54。其中，所述第一进液单向阀51用于控制所述第一进液口启闭，所述第一出液单向阀52用于控制所述第一出液口启闭，所述第二进液单向阀53用于控制所述第二进液口启闭，所述第二出液单向阀54用于控制所述第二出液口启闭。
当所述第一腔体21a缩小，所述第二腔体22a扩大时，所述第一出液单向阀52和第二进液单向阀53打开，所述第一进液单向阀51和所述第二出液单向阀54关闭，以使得所述第一出液口、第二进液口与所述管道300连通，所述第一进液口、第二出液口关闭。具体地，所述第一出液单向阀52和所述第二进液单向阀53在药液的流动作用下而开启，所述第一进液单向阀51和所述第二出液单向阀54在药液的流动作用下而关闭。
当所述第一腔体21a扩大，所述第二腔体22a缩小时，所述第一进液单向阀51和所述第二出液单向阀54打开，所述第一出液单向阀52和第二进液单向阀53关闭，以使得所述第一进液口、第二出液口与所述管道300连通，所述第一出液口、第二进液口关闭。具体地，所述第一进液单向阀51和所述第二出液单向阀54在药液的流动作用下而开启，所述第一出液单向阀52和所述第二进液单向阀53在药液的流动作用下而关闭。
进一步地，参见图4，所述本体1的两侧(即所述本体1上用于盖设盖体2的两侧)分别设有安装腔，两个所述安装腔相对而设。所述第一进液单向阀51和第一出液单向阀52、所述第二进液单向阀53和第二出液单向阀54分别收容在对应的安装腔中，所述第一进液单向阀51和第一出液单向阀52与所述第二进液单向阀53和第二出液单向阀54相对而设，提高结构的紧凑性和美观性。
所述第一盖体21盖设用于收容所述第一进液单向阀51和第一出液单向阀52的安装腔(可参见图4)，所述第二盖体22盖设用于收容所述第一进液单向阀51和第一出液单向阀52的安装腔。其中，所述第一进液单向阀51设于连接所述第一进液口与所述储液箱200的管道上，所述第一出液单向阀52设于连接所述第一出液口与所述喷洒组件400的管道上。相应地，所述第二进液单向阀53设于连接所述第二进液口与所述储液箱200的管道上，所述第二出液单向阀54设于连接所述第二出液口与所述喷洒组件400的管道上。其中，每个腔体的药液流向可参见图5中的箭头方向。
本实施例中，每个单向阀(其包括第一进液单向阀51、第一出液单向阀52、第二进液单向阀53和第二出液单向阀54)可包括阀座、安装在所述阀座上的阀芯以及与所述阀芯配合的弹性件。其中，所述第一进液单向阀51和第一出液单向阀52的阀芯安装方向相反，所述第二进液单向阀53和第二出液单向阀54的阀芯安装方向相
反。
具体而言，参见图2，所述第一进液单向阀51可包括第一进液阀座511、安装在所述第一进液阀座511上的第一进液阀芯512以及与所述第一进液阀芯512配合的第一弹性件513。所述第一出液单向阀52可包括第一出液阀座521、安装在所述第一出液阀座521上的第一出液阀芯522以及与所述第一出液阀芯522配合的第二弹性件523。所述第一进液阀芯512一端插入所述第一进液阀座511，另一端连接所述第一弹性件513，所述第一弹性件513远离所述第一进液阀芯512的一端固定在第一盖体21的内侧壁。所述出液阀芯一端能够插入所述第一出液阀座521，另一端连接所述第二弹性件523，所述第二弹性件523远离所述第一出液阀芯522的一端固定在第一盖体21的内侧壁。在药液的冲击作用下，所述第一进液阀芯512在所述第一弹性件513的弹性力作用下相对所述第一进液阀座511移动而插入所述第二进液阀座531或与所述第二进液阀座531分离，对应使得所述第一进液单向阀51关闭和开启。而在药液的冲击作用下，所述第一出液阀芯522在所述第二弹性件523的弹性力作用下相对所述第一出液阀座521移动而插入所述第二出液阀座541或与所述第二出液阀座541分离，对应使得所述第一出液单向阀52关闭和开启。
又参见图2，所述第二进液单向阀53可包括第二进液阀座531、安装在所述第二进液阀座531上的第二进液阀芯532以及与所述第二进液阀芯532配合的第三弹性件533。所述第二出液单向阀54可包括第二出液阀座541、安装在所述第二出液阀座541上的第二出液阀芯542以及与所述第二出液阀芯542配合的第四弹性件543。所述进液阀芯一端插入所述第二进液阀座531，另一端连接所述第三弹性件533，所述第三弹性件533远离所述第二进液阀芯532的一端固定在第二盖体22的内侧壁。所述出液阀芯一端能够插入所述第二出液阀座541，另一端连接所述第四弹性件543，所述第四弹性件543远离所述第二出液阀芯542的一端固定在第二盖体22的内侧壁。在药液的冲击作用下，所述第二进液阀芯532在所述第三弹性件533的弹性力作用下相对所述第二进液阀座531移动而插入所述第二进液阀座531或与所述第二进液阀座531分离，对应使得所述第二进液单向阀53关闭和开启。而在药液的冲击作用下，所述第二出液阀芯542在所述第四弹性件543的弹性力作用下相对所述第二出液阀座541移动而插入所述第二出液阀座541或与所述第二出液阀座541分离，对应使得所述第二出液单向阀54关闭和开启。
其中，所述第一弹性件513、第二弹性件523、第三弹性件533以及第四弹性件543可选择为弹簧或者其他具有弹性的结构。
可选地，所述第一进液单向阀51和第一出液单向阀52的阀座一体成型，即第一进液阀座511与第一出液阀座521一体成型，从而能够提高结构的紧凑性和强度。当然，第一进液阀座511与第一出液阀座521也可分体设置，可将第一进液阀座511的外侧壁与第一出液阀座521的外侧壁抵接连接或者直接连接，从而提高结构的紧凑
性。
可选地，所述第二进液单向阀53和第二出液单向阀54的阀座一体成型，即第二进液阀座531与第二出液阀座541一体成型，从而能够提高结构的紧凑性和强度。当然，第二进液阀座531与第二出液阀座541也可分体设置，可将第二进液阀座531的外侧壁与第二出液阀座541的外侧壁抵接连接或者直接连接，从而提高结构的紧凑性。
每个单向阀还可包括套设在所述阀座外侧的密封件55，提高各单向阀自身的密封能力，防止漏水。本实施例中，所述密封件55的形状与阀座的结构适配即可。所述密封件55可为密封圈或者其他密封结构。
又参见图1，所述隔膜片3可包括连接部以及位于所述连接部外边缘的支撑部。所述连接部由所述驱动机构驱动而移动，所述支撑部装配于对应的盖体2上。具体地，所述第一隔膜片31包括第一连接部31a以及位于所述第一连接部31a外边缘的第一支撑部31b，所述第一连接部31a由所述驱动机构驱动而靠近或远离所述第一盖体21，所述第一支撑部31b装配于所述第一盖体21上。所述第二隔膜片32包括第二连接部32a以及位于所述第二连接部32a外边缘的第二支撑部32b，所述第二连接部32a由所述驱动机构驱动而靠近或远离所述第二盖体22，所述第二支撑部32b装配于所述第二盖体22上。
本实施例中，所述第一隔膜片31和所述第二隔膜片32呈圆形。当然，在其他实施例中，所述第一隔膜片31和所述第二隔膜片32也可为其他规则或不规则形状。而所述第一支撑部31b和所述第二支撑部32b的外边缘可分别通过卡接或者其他方式装配至第一盖体21和第二盖体22上。
进一步地，所述第一连接部31a的厚度大于所述第一隔膜片31其他部分的厚度，所述第二连接部32a的厚度大于所述第二隔膜片32其他部分的厚度。由于第一连接部31a和第二连接部32a由驱动机构驱动而移动，将第一连接部31a和第二连接部32a的厚度设计得较厚，第一连接部31a和第二连接部32a即使存在磨损，也不会影响第一连接部31a和第二连接部32a在驱动机构的驱动下而移动。其中，所述厚度是指所述第一隔膜片31和所述第二隔膜片32在各自的移动方向上的厚度。
又参见图1，所述隔膜片3朝向对应盖体2的一侧可设有导流部，所述导流部设于所述连接部和所述支撑部之间。具体地，所述第一隔膜片31朝向所述第一盖体21的一侧可设有第一导流部31c，所述第一导流部31c设于所述第一连接部31a和所述第一支撑部31b之间。所述第二隔膜片32朝向所述第二盖体22的一侧可设有第二导流部32c，所述第二导流部32c位于所述第二连接部32a和所述第二支撑部32b之间。本实施例通过第一导流部31c来引导药液进入或排出第一腔体21a，通过第二导流部32c来引导药液进入或排出第二腔体22a，从而通过第一导流部31c和第二导流部32c
来分别提高第一腔体21a和第二腔体22a的流量大小。
本实施例中，所述导流部(包括第一导流部31c和第二导流部32c)为凹槽。更进一步地，所述凹槽具有圆滑过渡的表面，从而加快药液的流速。当然，所述导流部的形状不限于此，可根据需要将所述导流部设置成其他形状。
现有隔膜泵中的隔膜片3形状复杂、体积大，相比现有的隔膜泵，本实施例的隔膜片3的结构较为简单，且体积小，能够节省制作材料，从而降低成本。
所述隔膜片3朝向对应盖体2的一侧设有特氟龙层(即聚四氟乙烯，英文名称：Polytetrafluoroethylene，英文缩写：PTFE)，从而使得所述隔膜片3形成复合隔膜片3。具体而言，所述第一隔膜片31朝向第一盖体21的一侧设有特氟龙层，所述第二隔膜片32朝向第二盖体22的一侧也设有特氟龙层，从而提高第一腔体21a和第二腔体22a的耐腐蚀能力。相比现有技术中使用价格昂贵的材料制作隔膜片3以提高耐腐蚀能力的方式，通过在第一隔膜片31和第二隔膜片32的表面设置特氟龙层，不仅能够能够提高第一腔体21a和第二腔体22a的耐腐蚀能力，还能够降低成本。
所述特氟龙层可贴附在所述第一隔膜片31和所述第二隔膜片32的表面。当然，所述特氟龙层也可一体成型于所述第一隔膜片31和所述第二隔膜片32的表面，或者，所述特氟龙层通过其他方式设置在所述第一隔膜片31和所述第二隔膜片32的表面。
另外，所述特氟龙层的表面积可根据需要设定，以满足不同的耐腐蚀能力。优选地，所述特氟龙层盖设所述第一隔膜片31朝向第一盖体21的一侧，并盖设所述第二隔膜片32朝向第二盖体22的一侧。进一步地地，所述特氟龙层的厚度也可根据需要选择，从而满足不同的耐腐蚀能力。
另外，本实施例中，所述第一隔膜片31和所述第一进液单向阀51、第一出液单向阀52分体设置，所述第二隔膜片32和所述第二进液单向阀53、第二出液单向阀54分体设置，简化了产品结构，能够提高耐腐蚀能力并降低成本。
结合图1和图2，所述泵装置500还可包括传动机构，用于将所述驱动机构的驱动力传递至各隔膜片3，从而驱动各隔膜片3相对对应的盖体2靠近或远离。具体地，所述传动机构与所述驱动机构连接，所述驱动机构转动，带动所述传动机构推动两个所述隔膜片3来回移动，以改变所述第一腔体21a和所述第二腔体22a的大小。
本实施例中，所述传动机构可包括偏心轮6。所述驱动机构与所述偏心轮6连接，所述驱动机构转动，带动所述偏心轮6转动，所述偏心轮6推抵两个所述隔膜片3移动。其中，所述偏心轮6设于所述本体1内且位于所述第一隔膜片31和所述第二隔膜片32之间，所述偏心轮6的两侧分别活动抵接所述第一隔膜片31和所述第二隔膜片32。本实施例通过偏心轮6将驱动机构的转动力转换成推拉力，由于偏心轮6转动至不同位置，偏心轮6与第一隔膜片31之间的距离(偏心轮6的偏心位置至第一隔膜片31的距离)以及偏心轮6与第二隔膜片32之间的距离(偏心轮6的偏心位置至
第二隔膜片32的距离)会朝着相反的方向变化，当偏心轮6与第一隔膜片31之间的距离逐渐增大、并与第二隔膜片32之间的距离逐渐减小时，偏心轮6的推拉力会挤压第一隔膜片31而拉拔第二隔膜片32使得第一腔体21a缩小、第二腔体22a扩大。当偏心轮6与第一隔膜片31之间的距离逐渐减小、并与第二隔膜片32之间的距离逐渐增大时，偏心轮6的推拉力会拉拔第一隔膜片31而挤压第二隔膜片32使得第一腔体21a扩大、第二腔体22a缩小。
所述偏心轮6可直接抵接或间接抵接所述第一隔膜片31和所述第二隔膜片32。例如，在其中一实施例中，所述偏心轮6的两侧分别与所述第一隔膜片31和所述第二隔膜片32直接抵接。
在另一实施例中，结合图1和图2，所述偏心轮6间接抵接所述第一隔膜片31和所述第二隔膜片32。所述传动机构还可包括支架7，所述偏心轮6套设于所述支架7中，两个所述隔膜片3分别位于所述支架7的两侧并与所述支架7直接连接。
本实施例中，所述支架7包括一收容空间(未标出)，所述偏心轮6收容在所述收容空间内并抵接所述支架7。通过设置支架7，降低偏心轮6与第一隔膜片31和第二隔膜片32直接抵接而带来的第一隔膜片31和第二隔膜片32的磨损。本实施例中，所述偏心轮6与第一隔膜片31可通过螺丝8固定连接，所述偏心轮6与第二隔膜片32也可通过螺丝8固定连接。当然，在其他实施例中，所述偏心轮6与第一隔膜片31、所述偏心轮6与第二隔膜片32可通过其他方式固定连接。
又结合图1和图2，所述驱动机构可包括电机，所述电机的主轴41伸入所述本体1内并与所述传动机构连接，从而将驱动力由所述传动机构传递至隔膜片3上，以带动隔膜片3移动。
本实施例中，所述主轴41穿设所述偏心轮6和所述支架7。另外，可通过一固定块将所述主轴41固定在所述支架7的底部(图1所示泵装置500的上下左右方向)上。
进一步地，所述泵装置500还可包括保护壳42，所述保护壳42将所述电机盖设固定在所述本体1的一侧，从而对所述电机进行固定，并保护所述电机。
当然，所述驱动机构也可为其他类型的驱动机构，具体可根据需要选择驱动机构的类型。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一
个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本发明实施例所提供的泵装置及具有其的植保无人机进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。
Claims (34)
- 一种泵装置，应用于植保无人机上，所述植保无人机包括管道，其特征在于，所述泵装置包括本体、分别盖设所述本体两侧的盖体、设于所述本体内的两个隔膜片以及与两个所述隔膜片分别相连的驱动机构；其中，两个隔膜片分别装配在对应的盖体上，并与对应的盖体包围形成第一腔体和第二腔体；所述泵装置还包括分别与所述第一腔体连通的第一进液口和第一出液口以及分别与所述第二腔体连通的第二进液口和第二出液口，所述第一进液口和所述第一出液口以及所述第二进液口和所述第二出液口分别设于对应的盖体的同一侧，且所述第一进液口、第一出液口、第二进液口和第二出液口能够与所述管道相连通；所述驱动机构驱动两个所述隔膜片分别相对对应的盖体靠近或远离，使得所述第一腔体和所述第二腔体的大小朝着相反的方向变化；当所述第一腔体缩小，所述第二腔体扩大时，所述第一出液口、第二进液口与所述管道连通，所述第一进液口、第二出液口关闭；当所述第一腔体扩大，所述第二腔体缩小时，所述第一进液口、第二出液口与所述管道连通，所述第一出液口、第二进液口关闭。
- 根据权利要求1所述的泵装置，其特征在于，所述泵装置还包括传动机构，所述传动机构与所述驱动机构连接，所述驱动机构转动，带动所述传动机构推动两个所述隔膜片来回移动，以改变所述第一腔体和所述第二腔体的大小。
- 根据权利要求2所述的泵装置，其特征在于，所述传动机构包括偏心轮；所述驱动机构与所述偏心轮连接，所述驱动机构转动，带动所述偏心轮转动，所述偏心轮推抵两个所述隔膜片移动。
- 根据权利要求3所述的泵装置，其特征在于，所述传动机构还包括支架，所述偏心轮套设于所述支架中，两个所述隔膜片分别位于所述支架的两侧并与所述支架直接连接。
- 根据权利要求2所述的泵装置，其特征在于，所述驱动机构包括电机，所述电机的主轴伸入所述本体内并与所述传动机构连接。
- 根据权利要求5所述的泵装置，其特征在于，还包括保护壳，将所述电机盖设固定在所述本体的一侧。
- 根据权利要求1所述的泵装置，其特征在于，所述隔膜片包括连接部以及位于所述连接部外边缘的支撑部；所述连接部由所述驱动机构驱动而移动，所述支撑部装配于对应的盖体上。
- 根据权利要求7所述的泵装置，其特征在于，所述连接部的厚度大于所述隔膜片其他部分的厚度。
- 根据权利要求7所述的泵装置，其特征在于，所述隔膜片朝向对应盖体的一侧设有导流部；所述导流部设于所述连接部和所述支撑部之间。
- 根据权利要求9所述的泵装置，其特征在于，所述导流部为凹槽。
- 根据权利要求1所述的泵装置，其特征在于，所述隔膜片朝向对应盖体的一侧设有特氟龙层。
- 根据权利要求1所述的泵装置，其特征在于，所述盖体朝向对应的隔膜片的一侧设有凹陷部；所述第一进液口和所述第一出液口以及所述第二进液口和所述第二出液口分别设于对应盖体的凹陷部上。
- 根据权利要求1所述的泵装置，其特征在于，所述泵装置还包括用于控制所述第一进液口启闭的第一进液单向阀、用于控制所述第一出液口启闭的第一出液单向阀、用于控制所述第二进液口启闭的第二进液单向阀以及用于控制所述第二出液口启闭的第二出液单向阀；当所述第一腔体缩小，所述第二腔体扩大时，所述第一出液单向阀和第二进液单向阀打开，所述第一进液单向阀和所述第二出液单向阀关闭，以使得所述第一出液口、第二进液口与所述管道连通，所述第一进液口、第二出液口关闭；当所述第一腔体扩大，所述第二腔体缩小时，所述第一进液单向阀和所述第二出液单向阀打开，所述第一出液单向阀和第二进液单向阀关闭，以使得所述第一进液口、第二出液口与所述管道连通，所述第一出液口、第二进液口关闭。
- 根据权利要求13所述的泵装置，其特征在于，所述本体的两侧分别设有安装腔，两个所述安装腔相对而设；所述第一进液单向阀和第一出液单向阀、所述第二进液单向阀和第二出液单向阀分别收容在对应的安装腔中。
- 根据权利要求14所述的泵装置，其特征在于，每个单向阀包括阀座、安装在所述阀座上的阀芯以及与所述阀芯配合的弹性件；所述第一进液单向阀和第一出液单向阀的阀芯安装方向相反，所述第二进液单向阀和第二出液单向阀的阀芯安装方向相反。
- 根据权利要求15所述的泵装置，其特征在于，所述第一进液单向阀和第一出液单向阀的阀座一体成型，所述第二进液单向阀和第二出液单向阀的阀座一体成型。
- 根据权利要求15所述的泵装置，其特征在于，每个单向阀还包括套设在所述阀座外侧的密封件。
- 一种植保无人机，包括机身、用于存储药液的储液箱、与储液箱相连通的管道以及喷洒组件，其特征在于，还包括泵装置，所述泵装置通过所述管道连接于储液箱和喷洒组件之间；所述泵装置包括本体、分别盖设所述本体两侧的盖体、设于所述本体内的两个隔膜片以及与两个所述隔膜片分别相连的驱动机构；其中，两个隔膜片分别装配在对应的盖体上，并与对应的盖体包围形成第一腔体和第二腔体；所述泵装置还包括分别与所述第一腔体连通的第一进液口和第一出液口以及分别与所述第二腔体连通的第二进液口和第二出液口，所述第一进液口和所述第一出液口 以及所述第二进液口和所述第二出液口分别设于对应的盖体的同一侧，且所述第一进液口、第一出液口、第二进液口和第二出液口能够与所述管道相连通；所述驱动机构驱动两个所述隔膜片分别相对对应的盖体靠近或远离，使得所述第一腔体和所述第二腔体的大小朝着相反的方向变化；当所述第一腔体缩小，所述第二腔体扩大时，所述第一出液口、第二进液口与所述管道连通，所述第一进液口、第二出液口关闭；当所述第一腔体扩大，所述第二腔体缩小时，所述第一进液口、第二出液口与所述管道连通，所述第一出液口、第二进液口关闭。
- 根据权利要求18所述的植保无人机，其特征在于，所述泵装置还包括传动机构，所述传动机构与所述驱动机构连接，所述驱动机构转动，带动所述传动机构推动两个所述隔膜片来回移动，以改变所述第一腔体和所述第二腔体的大小。
- 根据权利要求19所述的植保无人机，其特征在于，所述传动机构包括偏心轮；所述驱动机构与所述偏心轮连接，所述驱动机构转动，带动所述偏心轮转动，所述偏心轮推抵两个所述隔膜片移动。
- 根据权利要求20所述的植保无人机，其特征在于，所述传动机构还包括支架，所述偏心轮套设于所述支架中，两个所述隔膜片分别位于所述支架的两侧并与所述支架直接连接。
- 根据权利要求19所述的植保无人机，其特征在于，所述驱动机构包括电机，所述电机的主轴伸入所述本体内并与所述传动机构连接。
- 根据权利要求22所述的植保无人机，其特征在于，还包括保护壳，将所述电机盖设固定在所述本体的一侧。
- 根据权利要求18所述的植保无人机，其特征在于，所述隔膜片包括连接部以及位于所述连接部外边缘的支撑部；所述连接部由所述驱动机构驱动而移动，所述支撑部装配于对应的盖体上。
- 根据权利要求24所述的植保无人机，其特征在于，所述连接部的厚度大于所述隔膜片其他部分的厚度。
- 根据权利要求24所述的植保无人机，其特征在于，所述隔膜片朝向对应盖体的一侧设有导流部；所述导流部设于所述连接部和所述支撑部之间。
- 根据权利要求26所述的植保无人机，其特征在于，所述导流部为凹槽。
- 根据权利要求18所述的植保无人机，其特征在于，所述隔膜片朝向对应盖体的一侧设有特氟龙层。
- 根据权利要求18所述的植保无人机，其特征在于，所述盖体朝向对应的隔膜片的一侧设有凹陷部；所述第一进液口和所述第一出液口以及所述第二进液口和所述第二出液口分别设于对应盖体的凹陷部上。
- 根据权利要求18所述的植保无人机，其特征在于，所述泵装置还包括用于控 制所述第一进液口启闭的第一进液单向阀、用于控制所述第一出液口启闭的第一出液单向阀、用于控制所述第二进液口启闭的第二进液单向阀以及用于控制所述第二出液口启闭的第二出液单向阀；当所述第一腔体缩小，所述第二腔体扩大时，所述第一出液单向阀和第二进液单向阀打开，所述第一进液单向阀和所述第二出液单向阀关闭，以使得所述第一出液口、第二进液口与所述管道连通，所述第一进液口、第二出液口关闭；当所述第一腔体扩大，所述第二腔体缩小时，所述第一进液单向阀和所述第二出液单向阀打开，所述第一出液单向阀和第二进液单向阀关闭，以使得所述第一进液口、第二出液口与所述管道连通，所述第一出液口、第二进液口关闭。
- 根据权利要求30所述的植保无人机，其特征在于，所述本体的两侧分别设有安装腔，两个所述安装腔相对而设；所述第一进液单向阀和第一出液单向阀、所述第二进液单向阀和第二出液单向阀分别收容在对应的安装腔中。
- 根据权利要求31所述的植保无人机，其特征在于，每个单向阀包括阀座、安装在所述阀座上的阀芯以及与所述阀芯配合的弹性件；所述第一进液单向阀和第一出液单向阀的阀芯安装方向相反，所述第二进液单向阀和第二出液单向阀的阀芯安装方向相反。
- 根据权利要求32所述的植保无人机，其特征在于，所述第一进液单向阀和第一出液单向阀的阀座一体成型，所述第二进液单向阀和第二出液单向阀的阀座一体成型。
- 根据权利要求32所述的植保无人机，其特征在于，每个单向阀还包括套设在所述阀座外侧的密封件。
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| CN206158970U (zh) * | 2016-10-24 | 2017-05-10 | 武汉优利可科技有限公司 | Scr尿素喷射隔膜泵 |
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2017
- 2017-09-28 CN CN202111094865.5A patent/CN113819042A/zh not_active Withdrawn
- 2017-09-28 CN CN201780005518.6A patent/CN108521784B/zh not_active Expired - Fee Related
- 2017-09-28 WO PCT/CN2017/104016 patent/WO2019061160A1/zh active Application Filing
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| US4768714A (en) * | 1984-05-31 | 1988-09-06 | Luchsinger Pedro W | Portable sprayer with leak control and agitator |
| CN201184289Y (zh) * | 2008-02-20 | 2009-01-21 | 常州富邦电气有限公司 | 隔膜泵 |
| CN102687711A (zh) * | 2012-06-05 | 2012-09-26 | 南京林业大学 | 静电喷雾式无人直升机施药系统 |
| CN104791228A (zh) * | 2015-03-10 | 2015-07-22 | 李新华 | 一种隔膜泵 |
| CN205044971U (zh) * | 2015-08-24 | 2016-02-24 | 飞瑞航空科技（江苏）有限公司 | 一种植保无人机农药喷洒装置 |
| CN106394906A (zh) * | 2016-10-11 | 2017-02-15 | 深圳高科新农技术有限公司 | 一种多旋翼农用无人机的喷嘴配置方式及其喷洒系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108521784A (zh) | 2018-09-11 |
| CN108521784B (zh) | 2021-10-08 |
| CN113819042A (zh) | 2021-12-21 |
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