WO2020258267A1 - 隔膜泵、喷洒系统以及无人机 - Google Patents

隔膜泵、喷洒系统以及无人机 Download PDF

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Publication number
WO2020258267A1
WO2020258267A1 PCT/CN2019/093769 CN2019093769W WO2020258267A1 WO 2020258267 A1 WO2020258267 A1 WO 2020258267A1 CN 2019093769 W CN2019093769 W CN 2019093769W WO 2020258267 A1 WO2020258267 A1 WO 2020258267A1
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WIPO (PCT)
Prior art keywords
diaphragm
bracket
diaphragm pump
cavity
piston
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/093769
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English (en)
French (fr)
Inventor
舒展
万道玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SZ DJI Technology Co Ltd
Original Assignee
SZ DJI Technology Co Ltd
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 SZ DJI Technology Co Ltd filed Critical SZ DJI Technology Co Ltd
Priority to PCT/CN2019/093769 priority Critical patent/WO2020258267A1/zh
Priority to CN201980008820.6A priority patent/CN111656015A/zh
Publication of WO2020258267A1 publication Critical patent/WO2020258267A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F04B43/06—Pumps having fluid drive
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
    • 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
    • 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
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • 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 invention relates to the technical field of diaphragm pumps, in particular to a diaphragm pump, a spraying system and a drone.
  • Diaphragm pumps are also called control pumps, which use the elasticity of the diaphragm in the diaphragm pump to change the volume through the reciprocating movement of the diaphragm, thereby sucking and pushing out materials.
  • Diaphragm pumps are widely used in agricultural unmanned aerial vehicles, pesticide spraying vehicles, and human spraying devices. They are one of the main agricultural equipment for preventing and controlling diseases, insects, weeds and spraying liquid fertilizer.
  • the diaphragm of a diaphragm pump is often fixed to the driving device through a connection method such as an in-line snap or threaded connection, so as to realize reciprocating movement under the driving of the driving device.
  • a connection method such as an in-line snap or threaded connection
  • embedding a buckle or setting a threaded structure on the diaphragm not only easily makes the shape of the diaphragm more complicated and increases the difficulty of processing the diaphragm, but also, when the driving device drives the diaphragm, it is easy to cause stress concentration on the diaphragm, making the diaphragm It is easy to break, and furthermore, it is easy to reduce the service life of the diaphragm pump.
  • embodiments of the present invention provide a diaphragm pump, a spraying system, and a drone .
  • an embodiment of the present invention provides a diaphragm pump for pumping working fluid, including:
  • a diaphragm the diaphragm is fixed in the housing, one side of the diaphragm is formed with a working cavity, and the other opposite side of the diaphragm is formed with a transmission cavity, and the working cavity is used to contain the working fluid;
  • a bracket the bracket is provided with a piston, the bracket is located in the transmission cavity, and a transmission medium is contained between the piston and the diaphragm;
  • a driving mechanism is connected to the bracket, and the driving mechanism is used to drive the bracket to drive the piston to move;
  • the driving mechanism drives the support
  • the support drives the piston to move
  • the piston drives the diaphragm to move through the transmission medium, thereby prompting the diaphragm to change the size of the working chamber, so that The working fluid flows into the working cavity or flows out of the working cavity.
  • an embodiment of the present invention also provides a spray system, the spray system includes: a spray head, a flow storage device, and the above-mentioned diaphragm pump; wherein,
  • the diaphragm pump is respectively connected with the spray head and the flow storage device.
  • an embodiment of the present invention also provides an unmanned aerial vehicle, including: a frame and the above-mentioned spraying system; wherein,
  • the spray system is fixed on the frame.
  • a working cavity is formed on one side of the diaphragm, and a transmission cavity is formed on the other opposite side of the diaphragm, and the working cavity can be used to contain the working fluid;
  • a piston the bracket is located in the transmission cavity, and a transmission medium is contained between the piston and the diaphragm;
  • a driving mechanism is connected to the bracket, and the driving mechanism is used to drive the bracket to drive the piston to move
  • the drive mechanism drives the support
  • the support drives the piston to move
  • the piston drives the diaphragm to move through the transmission medium, thereby prompting the diaphragm to change the size of the working chamber, so that the The working fluid flows into the working cavity or flows out of the working cavity.
  • the driving mechanism can drive the piston to move by driving the bracket
  • the piston can drive the diaphragm to move through the transmission medium, so that the diaphragm and the driving mechanism can be avoided
  • the problem of complicated diaphragm shape and easy rupture of the diaphragm caused by direct connection reduces the complexity of the shape of the diaphragm and the difficulty of processing, improves the service life of the diaphragm, and further, can make the service life of the diaphragm pump higher.
  • Figure 1 schematically shows a structural example diagram of a diaphragm pump according to an embodiment of the present invention
  • Fig. 2 schematically shows a top structural diagram of the diaphragm pump described in Fig. 1;
  • FIG. 3 schematically shows a cross-sectional structure diagram of the diaphragm pump shown in FIG. 1;
  • Fig. 4 schematically shows a schematic structural diagram of the diaphragm pump shown in Fig. 1 along the line A-A;
  • Fig. 5 schematically shows a B-B sectional structure diagram of the diaphragm pump shown in Fig. 1.
  • FIG. 1 shows an example of the structure of a diaphragm pump according to an embodiment of the present invention.
  • FIG. 2 is a schematic top view of the diaphragm pump shown in FIG. 1 and
  • FIG. 3 is a schematic cross-sectional structure view of the diaphragm pump shown in FIG. 1.
  • the diaphragm pump described in the embodiment of the present invention may be used to pump a working fluid, and the working fluid may be liquid or gaseous water, pesticides, fertilizers, or disinfectants.
  • the diaphragm pump may include: a housing 10; a diaphragm 11, the diaphragm 11 is fixed in the housing 10, a working cavity 12 is formed on one side of the diaphragm 11, and a transmission cavity 13 is formed on the other opposite side of the diaphragm 11.
  • the cavity 12 can be used to contain the working fluid; the bracket 14, the bracket 14 is provided with a piston 15, the bracket 14 is located in the transmission cavity 13, and the transmission medium is accommodated between the piston 15 and the diaphragm 11; and the drive mechanism 16, the drive mechanism 16 Connected to the bracket 14, the driving mechanism 16 can be used to drive the bracket 14 to drive the piston 15 to move.
  • the support 14 can drive the piston 15 to move, and the piston 15 can drive the diaphragm 11 to move through the transmission medium, thereby prompting the diaphragm 11 to change the size of the working chamber 12, so that the working fluid flows into the working chamber. Cavity 12, or flow out of working cavity 12.
  • the transmission cavity 13 may be a closed cavity, and the transmission medium between the piston 15 and the diaphragm 11 is located in the closed transmission cavity 13 and can transmit pressure and tension to drive the diaphragm 11 to move.
  • the drive mechanism 16 can drive the piston 15 to move through the drive bracket 14
  • the piston 15 can drive the diaphragm 11 to move through the transmission medium.
  • the diaphragm shape caused by the direct connection between the diaphragm 11 and the drive mechanism 16 can be avoided.
  • the problem of complexity and easy rupture of the diaphragm reduces the complexity and processing difficulty of the diaphragm 11, increases the service life of the diaphragm 11, and in turn, can make the service life of the diaphragm pump higher.
  • the housing 10 can be used to fix the components on the diaphragm pump, and the housing 10 row can also be provided with an installation mechanism 17 which can be used to install and fix the diaphragm pump on other equipment.
  • the mounting mechanism 17 may include, but is not limited to, any one of a mounting plate, a mounting ring, and a mounting bracket.
  • the diaphragm 11 may be a metal diaphragm or a plastic diaphragm. Specifically, when the diaphragm 11 is a metal diaphragm, the strength of the diaphragm 11 can be higher and the service life is longer. When the diaphragm 11 is a plastic diaphragm, the elasticity of the diaphragm 11 can be better, and the sealing of the diaphragm 11 can be better. The performance is better. In practical applications, those skilled in the art can select the material of the diaphragm 11 according to actual needs. The embodiment of the present invention may not limit the specific material of the diaphragm 11.
  • the diaphragm 11 may be a flat diaphragm or a curved diaphragm.
  • the processing technology of the diaphragm 11 can be made simpler, and accordingly, the cost of the diaphragm 11 can be reduced, and when the diaphragm 11 is a curved diaphragm, the diaphragm 11 can face the working cavity 12 or the transmission cavity 13 is raised to increase the contact area of the diaphragm 11 with the working fluid and the transmission medium, and further, the driving force of the diaphragm 11 for the working fluid and the transmission medium can be increased.
  • those skilled in the art can select the shape of the diaphragm 11 according to actual needs, which is not limited in the embodiment of the present invention.
  • a corrosion-resistant layer is provided on the side of the diaphragm 11 close to the working cavity 12, and the corrosion-resistant layer can be used to prevent the working fluid in the working cavity 12 from directly contacting the diaphragm 11 and causing damage to the diaphragm 11. Corrosion improves the corrosion resistance of the diaphragm 11, and in turn, can further increase the service life of the diaphragm 11. In practical applications, since the shape of the diaphragm 11 in the embodiment of the present invention is relatively simple, the operation difficulty of laying the corrosion-resistant layer on the diaphragm 11 can be greatly reduced, and the integrity of the corrosion-resistant layer can be improved. The corrosion resistance and service life of the diaphragm 11 are further improved.
  • the corrosion-resistant layer may be a polytetrafluoroethylene layer. Since polytetrafluoroethylene has the advantages of resistance to acid, alkali, and various organic solvents, it is almost insoluble in all solvents. Therefore, when the corrosion-resistant layer is a polytetrafluoroethylene layer, the corrosion-resistant The corresponding layer has the advantages of resistance to acid, alkali, and various organic solvents.
  • the corrosion-resistant layer can also be made of rubber and other materials that can resist acid and alkali, and the embodiment of the present invention may not limit the specific material of the corrosion-resistant layer.
  • the bracket 14 can be used to install the fixed piston 15.
  • the bracket 14 can be connected with the driving mechanism 16 to drive the piston 15 to move under the drive of the driving mechanism 16, and the piston 15 can pass through the The transmission medium drives the diaphragm 11 to move, thereby prompting the diaphragm 11 to change the size of the working chamber 12, so that the working fluid flows into the working chamber 12 or flows out of the working chamber 12 to realize the pumping of the working fluid.
  • the driving mechanism 16 may be a motor, and the output end of the motor is connected to the bracket 14 to drive the bracket 14 to move, or the driving mechanism 16 may include: a motor and a reducer; the input shaft of the reducer is connected to The output end of the motor is connected; the output shaft of the reducer is connected to the bracket 14 to drive the bracket 14 to move.
  • the driving mechanism 16 may be a motor, and the output end of the motor is connected to the bracket 14 to drive the bracket 14 to move, or the driving mechanism 16 may include: a motor and a reducer; the input shaft of the reducer is connected to The output end of the motor is connected; the output shaft of the reducer is connected to the bracket 14 to drive the bracket 14 to move.
  • the transmission medium is a neutral liquid or gas.
  • the transmission medium when it is a neutral liquid or gas, it can prevent the transmission medium from corroding the diaphragm 11 and further improve the service life of the diaphragm 11.
  • the compression rate of the transmission medium may be less than the compression rate of the working fluid, so as to improve the driving effect of the transmission medium on the diaphragm 11.
  • the volume change of the transmission medium can be made smaller than the The volume change of the working fluid improves the driving effect of the transmission medium on the diaphragm 11.
  • the transmission medium when the working fluid is a gas, the transmission medium may be a liquid or a gas with a lower compression rate than the working fluid, and when the working fluid is a liquid, the transmission medium may be a compression rate Liquid smaller than the working fluid.
  • the housing 10 may be provided with two accommodating cavities which are arranged oppositely and spaced apart, and the two accommodating cavities may be arranged along the first direction; the number of the diaphragm 11 is two, one diaphragm 11 is arranged in one of the accommodating cavity, each diaphragm 11 divides the accommodating cavity into a working cavity 12 and a transmission cavity 13, the working cavity 12 and the transmission cavity 13 are arranged along the first direction; the two ends of the bracket 14 are respectively Pistons 15 are provided, and the transmission medium is contained between each piston 15 and the diaphragm 11.
  • the first direction may be the up and down direction shown in FIG. 3.
  • the diaphragm pump may include two upper and lower accommodating cavities arranged at intervals, and the two accommodating cavities may be arranged in an up-down direction.
  • the diaphragm pump may include two upper and lower diaphragms 11, each diaphragm 11 is arranged in one of the containing chambers, and the containing chamber is divided into a working chamber 12 and a transmission chamber 13. Both ends of the bracket 14 are respectively provided with pistons 15, the transmission medium is accommodated between the upper piston 15 and the upper diaphragm 11, and the transmission medium is accommodated between the lower piston 15 and the lower diaphragm 11.
  • the upper piston 15 can compress the upper transmission medium, and the upper transmission medium can transmit the pressure to the upper On the diaphragm 11, the upper diaphragm 11 is compressed, and the upper working chamber 12 becomes smaller, so that the working fluid in the upper working chamber 12 flows out; at the same time, the lower piston 15 can stretch the lower transmission medium, which can transfer the tension Transfer to the lower diaphragm 11, stretch the lower diaphragm 11, and the lower working chamber 12 becomes smaller, so that the working fluid can flow into the lower working chamber 12. That is to say, while the upper working chamber 12 discharges the working fluid, the lower working chamber 12 can suck in the working fluid. In this way, the efficiency of pumping the working fluid by the diaphragm pump can be improved.
  • the driving mechanism 16 is connected to the bracket 14, and the driving mechanism 16 can be used to drive the bracket 16 to drive the piston 15 to reciprocate along the first direction.
  • the driving mechanism 16 may be a motor, the motor shaft 161 of the motor may be an eccentric shaft, and the eccentric shaft may be connected to the bracket 14.
  • the motor shaft 161 when the motor shaft 161 is an eccentric shaft, the motor shaft 161 can be driven by the motor to perform cam movement. Since the motor shaft 161 is connected to the bracket 14, the motor shaft 161 can drive the bracket when it performs cam movement. 14 reciprocating linearly along the first direction. In this way, while the upper working chamber 12 discharges working fluid, the lower working chamber 12 can suck in working fluid, or, while the upper working chamber 12 sucks in working fluid, the lower working chamber 12 can discharge working fluid, which improves The efficiency of the diaphragm pump to pump the working fluid.
  • the driving mechanism 16 may include: a motor and a reducer; the input shaft of the reducer is connected with the output end of the motor; the output shaft of the reducer and the bracket 14 Connected, the output shaft of the reducer is an eccentric shaft.
  • a reducer is provided between the motor and the support 14, which can not only match the rotation speed between the motor and the support 14, but also increase the output torque of the motor, and in turn, can increase the The driving reliability of the motor to the bracket.
  • the output shaft of the reducer is connected to the bracket 14, the output shaft of the reducer is an eccentric shaft.
  • the output shaft of the reducer can perform a cam motion. Since the output shaft is connected to the bracket 14, when the output shaft performs a cam motion, the bracket 14 can be driven to make a linear reciprocating motion in the first direction. In this way, while the upper working chamber 12 discharges working fluid, the lower working chamber 12 can suck in working fluid, or, while the upper working chamber 12 sucks in working fluid, the lower working chamber 12 can discharge working fluid, which improves The efficiency of the diaphragm pump to pump the working fluid.
  • the two transmission cavities 13 are respectively arranged close to or far away from the bracket 14, so that the two transmission cavities 13 can be symmetrically arranged at both ends of the bracket 14.
  • the pistons 15 provided at both ends of the bracket 14 can be The two ends of the bracket 14 are symmetrically arranged to improve the uniformity of the force on both ends of the bracket 14, and further, the driving reliability of the bracket 14 for the piston 15 can be improved.
  • FIG. 4 is a schematic diagram of the A-A cross-sectional structure of the diaphragm pump shown in FIG. 1
  • FIG. 5 is a schematic diagram of the B-B cross-sectional structure of the diaphragm pump shown in FIG. 1.
  • the diaphragm pump further includes: a water inlet check valve 18, which is in communication with the working chamber 12 for controlling the working fluid to flow into the working chamber 12; and a water outlet The valve 19 and the water outlet check valve 19 communicate with the working chamber 12 for controlling the working fluid to flow out of the working chamber 12.
  • each working chamber 12 can be connected with one or more water inlet check valves 18 to suck in working fluid through the water inlet check valve 18.
  • each working cavity 12 can be connected with one or more The water outlet check valve 19 is connected to discharge the working fluid through the water outlet check valve 19.
  • the diaphragm pump may also be provided with a water inlet 110 and a water outlet 111, and the water inlet 110 may be connected to a storage device storing working fluid for sucking working fluid from the storage device.
  • the water inlet 110 may be connected with the water inlet check valve 18, and the working fluid entering from the water inlet 110 may enter the working chamber 12 through the water inlet check valve 18.
  • the water outlet 111 can be connected with the water outlet check valve 19 to discharge the working fluid discharged from the water outlet check valve 19.
  • the water outlet 111 can be connected with a spray head, and the working fluid discharged from the water outlet 111 can pass through The spray head sprays.
  • Figures 4 and 5 only show the case where the diaphragm pump includes one water inlet 110 and one water outlet 111, but in practical applications, the water inlet 110 and the water outlet 110 of the diaphragm pump
  • the number of nozzles 111 can be set according to actual conditions, which is not limited in the embodiment of the present invention.
  • the diaphragm pump according to the embodiment of the present invention at least includes the following advantages:
  • a working cavity is formed on one side of the diaphragm, and a transmission cavity is formed on the other opposite side of the diaphragm, and the working cavity can be used to contain the working fluid;
  • a piston the bracket is located in the transmission cavity, and a transmission medium is contained between the piston and the diaphragm;
  • a driving mechanism is connected to the bracket, and the driving mechanism is used to drive the bracket to drive the piston to move
  • the drive mechanism drives the support
  • the support drives the piston to move
  • the piston drives the diaphragm to move through the transmission medium, thereby prompting the diaphragm to change the size of the working chamber, so that the The working fluid flows into the working cavity or flows out of the working cavity.
  • the driving mechanism can drive the piston to move by driving the bracket
  • the piston can drive the diaphragm to move through the transmission medium, so that the diaphragm and the driving mechanism can be avoided
  • the problem of complicated diaphragm shape and easy rupture of the diaphragm caused by direct connection reduces the complexity of the shape of the diaphragm and the difficulty of processing, improves the service life of the diaphragm, and further, can make the service life of the diaphragm pump higher.
  • the embodiment of the present invention also provides a spray system, which may include: a spray head, a flow storage device, and the above-mentioned diaphragm pump; wherein the diaphragm pump is connected to the spray head and the flow storage device respectively.
  • the fluid storage device may be a fluid storage tank, fluid storage bin, or fluid storage tank that can store working fluid, which is not limited in the embodiment of the present invention.
  • a working cavity is formed on one side of the diaphragm, and a transmission cavity is formed on the other opposite side of the diaphragm, and the working cavity can be used to contain the working fluid;
  • a piston the bracket is located in the transmission cavity, and a transmission medium is contained between the piston and the diaphragm;
  • a driving mechanism is connected to the bracket, and the driving mechanism is used to drive the bracket to drive the piston to move
  • the drive mechanism drives the support
  • the support drives the piston to move
  • the piston drives the diaphragm to move through the transmission medium, thereby prompting the diaphragm to change the size of the working chamber, so that the The working fluid flows into the working cavity or flows out of the working cavity.
  • the driving mechanism can drive the piston to move by driving the bracket
  • the piston can drive the diaphragm to move through the transmission medium, so that the diaphragm and the driving mechanism can be avoided
  • the problem of complicated diaphragm shape and easy rupture of the diaphragm caused by direct connection reduces the complexity of the shape of the diaphragm and the difficulty of processing, improves the service life of the diaphragm, and further, can make the service life of the diaphragm pump higher.
  • the diaphragm pump may also be provided with a water inlet and a water outlet, and the water inlet may be connected with a storage device for storing working fluid for sucking working fluid from the storage device.
  • the water inlet may be connected with the water inlet check valve, and the working fluid entering from the water inlet may enter the working chamber through the water inlet check valve.
  • the water outlet may be connected with the water outlet check valve for discharging the working fluid discharged from the water outlet check valve.
  • the water outlet may be connected with a spray head and discharged from the water outlet The working fluid can be sprayed through the spray head.
  • the driving mechanism of the diaphragm pump can drive the piston to move by driving the bracket
  • the piston can drive the diaphragm to move through the transmission medium.
  • the embodiment of the present invention also provides an unmanned aerial vehicle.
  • the unmanned aerial vehicle may specifically include a frame and the above-mentioned spraying system; wherein the spraying system is fixed on the frame.
  • the drones may include, but are not limited to, inspection/surveillance drones, agricultural drones, meteorological drones, exploration drones, surveying drones, reconnaissance drones, and decoy drones. , Any one of electronic countermeasure drones and communication relay drones.
  • the driving mechanism can drive the piston to move by driving the bracket, and the piston can drive the diaphragm to move through the transmission medium, In this way, it is possible to avoid the problem of the complicated shape of the diaphragm and the easy rupture of the diaphragm caused by the direct connection between the diaphragm and the driving mechanism, reduce the shape complexity and processing difficulty of the diaphragm, and increase the service life of the diaphragm.
  • the service life of the pump is relatively high, and further, the working stability of the drone can be improved.
  • the device embodiments described above are merely illustrative.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement it without creative work.
  • any reference signs placed between parentheses should not be constructed as a limitation to the claims.
  • the word “comprising” does not exclude the presence of elements or steps not listed in the claims.
  • the word “a” or “an” preceding an element does not exclude the presence of multiple such elements.
  • the invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several devices, several of these devices may be embodied by the same hardware item.
  • the use of the words first, second, and third, etc. do not indicate any order. These words can be interpreted as names.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种隔膜泵、喷洒系统以及无人机，隔膜泵包括：外壳（10）；隔膜（11），隔膜固定于外壳内，隔膜的其中一侧形成有工作腔（12），隔膜的另一相对侧形成有传动腔（13），工作腔用于容纳工作流体；支架（14），支架上设有活塞（15），支架位于传动腔内，活塞与隔膜之间容纳有传动介质；以及驱动机构（16），驱动机构与支架连接，驱动机构用于驱动支架带动活塞运动。该隔膜泵可以降低隔膜的形状复杂度和加工难度，提高隔膜的使用寿命，进而，可以使得隔膜泵的使用寿命较高。

Description

隔膜泵、喷洒系统以及无人机 技术领域
本发明涉及隔膜泵技术领域，尤其涉及一种隔膜泵、一种喷洒系统以及一种无人机。
背景技术
隔膜泵又称控制泵，利用隔膜泵中隔膜的弹性，通过隔膜的往复运动造成容积的变化从而将物料吸入压出。隔膜泵广泛应用在农业无人机、农药喷洒车、人力喷洒装置中，是农业防治病、虫、草害及喷施液体肥料的主要机具之一。
目前，隔膜泵的隔膜往往通过内嵌卡扣或者螺纹连接等连接方式固定于驱动装置上，以在驱动装置的驱动下实现往复运动。然而，在隔膜上内嵌卡扣或者设置螺纹结构，不仅容易使得隔膜的形状较为复杂，增大隔膜的加工难度，而且，在驱动装置驱动隔膜时，很容易造成隔膜上的应力集中，使得隔膜容易破裂，进而，很容易降低隔膜泵的使用寿命。
发明内容
有鉴于此，为了解决现有的隔膜泵中，隔膜的形状较为复杂且容易破裂，使用寿命较低的问题，本发明实施例提供了一种隔膜泵、一种喷洒系统以及一种无人机。
第一方面，本发明实施例提供了一种隔膜泵，用于泵送工作流体，包括：
外壳；
隔膜，所述隔膜固定于所述外壳内，所述隔膜的其中一侧形成有工作腔，所述隔膜的另一相对侧形成有传动腔，所述工作腔用于容纳所述工作流体；
支架，所述支架上设有活塞，所述支架位于所述传动腔内，所述活塞与所述隔膜之间容纳有传动介质；以及
驱动机构，所述驱动机构与所述支架连接，所述驱动机构用于驱动所述支架带动所述活塞运动；
其中，当所述驱动机构驱动所述支架时，所述支架带动所述活塞运动，所述活塞通过所述传动介质带动所述隔膜运动，进而促使所述隔膜改变所述工作腔的大小，使得所述工作流体流入所述工作腔，或 者流出所述工作腔。
第二方面，本发明实施例还提供了一种喷洒系统，所述喷洒系统包括：喷头、储流装置以及上述隔膜泵；其中，
所述隔膜泵分别与所述喷头、所述储流装置连接。
第三方面，本发明实施例还提供了一种无人机，包括：机架以及上述喷洒系统；其中，
所述喷洒系统固定于所述机架上。
本发明实施例所述的隔膜泵中，隔膜的其中一侧形成有工作腔，所述隔膜的另一相对侧形成有传动腔，所述工作腔可以用于容纳所述工作流体；支架上设有活塞，所述支架位于所述传动腔内，所述活塞与所述隔膜之间容纳有传动介质；驱动机构与所述支架连接，所述驱动机构用于驱动所述支架带动所述活塞运动；当所述驱动机构驱动所述支架时，所述支架带动所述活塞运动，所述活塞通过所述传动介质带动所述隔膜运动，进而促使所述隔膜改变所述工作腔的大小，使得所述工作流体流入所述工作腔，或者流出所述工作腔。在实际应用中，由于所述驱动机构可以通过驱动所述支架带动所述活塞运动，所述活塞可以通过所述传动介质带动所述隔膜运动，这样，就可以避免所述隔膜与所述驱动机构直接连接导致的隔膜形状复杂且隔膜容易破裂的问题，降低所述隔膜的形状复杂度和加工难度，提高所述隔膜的使用寿命，进而，可以使得所述隔膜泵的使用寿命较高。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其它目的、特征和优点能够更明显易懂，以下特举本发明的具体实施方式。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图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的前提下，还可以根据这些附图获得其他的附图。
图1示意性地示出了本发明实施例的一种隔膜泵的结构示例图；
图2示意性的示出了图1所述的隔膜泵的俯视结构示意图；
图3示意性的示出了图1所示的隔膜泵的剖视结构示意图；
图4示意性的示出了图1所示的隔膜泵A-A向剖视结构示意图；
图5示意性的示出了图1所示的隔膜泵B-B向剖视结构示意图。
具体实施例
为使本发明实施例的目的、技术方案和优点更加清楚，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作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。
图1示出了本发明实施例的一种隔膜泵的结构示例图，图2是图1所述的隔膜泵的俯视结构示意图，图3是图1所示的隔膜泵的剖视结构示意图。
本发明实施例所述的隔膜泵可以用于泵送工作流体，所述工作流体可以为液态或者气态的水、农药、化肥或者消毒剂等。
具体地，所述隔膜泵可以包括：外壳10；隔膜11，隔膜11固定于外壳10内，隔膜11的其中一侧形成有工作腔12，隔膜11的另一相对侧形成有传动腔13，工作腔12可以用于容纳所述工作流体；支架14，支架14上设有活塞15，支架14位于传动腔13内，活塞15与隔膜11之间容纳有传动介质；以及驱动机构16，驱动机构16与支架14连接，驱动机构16可以用于驱动支架14带动活塞15运动。
其中，当驱动机构16驱动支架14时，支架14可以带动活塞15运动，活塞15可以通过所述传动介质带动隔膜11运动，进而促使隔膜11改变工作腔12的大小，使得所述工作流体流入工作腔12，或者流出工作腔12。
在实际应用中，传动腔13可以为封闭的腔体，活塞15与隔膜11之间的传动介质位于封闭的传动腔13内，可以传递压力和拉力，以带动隔膜11运动。
本发明实施例中，由于驱动机构16可以通过驱动支架14带动活塞15运动，活塞15可以通过所述传动介质带动隔膜11运动，这样，就可以避免隔膜11与驱动机构16直接连接导致的隔膜形状复杂且隔膜 容易破裂的问题，降低隔膜11的形状复杂度和加工难度，提高隔膜11的使用寿命，进而，可以使得所述隔膜泵的使用寿命较高。
在实际应用中，外壳10可以用于固定安装隔膜泵上的部件，而且，外壳10行还可以设置安装机构17，安装机构17可以用于将所述隔膜泵安装固定于其他设备上。具体地，安装机构17可以包括但不局限于安装板、安装环以及安装支架中的任意一种。
本发明实施例中，隔膜11可以为金属隔膜或者塑胶隔膜。具体地，在隔膜11为金属隔膜的情况下，可以使得隔膜11的强度较高，使用寿命较长，在隔膜11为塑胶隔膜的情况下，可以使得隔膜11的弹性较好，隔膜11的密封性能较好。在实际应用中，本领域技术人员可以根据实际需要选择隔膜11的材质，本发明实施例对于隔膜11的具体材质可以不做限定。
可选地，隔膜11可以为平面隔膜或者曲面隔膜。具体地，在隔膜11为平面隔膜的情况下，可以使得隔膜11的加工工艺较为简单，相应的，可以降低隔膜11的成本，而在隔膜11为曲面隔膜的情况下，隔膜11可以朝向工作腔12或者传动腔13凸起，以增大隔膜11与所述工作流体、所述传动介质的接触面积，进而，可以增大隔膜11对于所述工作流体、所述传动介质的驱动力。在实际应用中，本领域技术人员可以根据实际需要选择隔膜11的形状，本发明实施例对此不做限定。
本发明实施例中，隔膜11靠近所述工作腔12的一侧设置有耐腐蚀层，所述耐腐蚀层可以用于避免工作腔12内的所述工作流体直接与隔膜11接触对隔膜11造成腐蚀，提高隔膜11的耐腐蚀性能，进而，可以进一步提高隔膜11的使用寿命。在实际应用中，由于本发明实施例中的隔膜11的形状较为简单，因此，可以极大的降低在隔膜11上铺设所述耐腐蚀层的操作难度，提高所述耐腐蚀层的完整度，进一步提高隔膜11的耐腐蚀性能和使用寿命。
具体地，所述耐腐蚀层可以为聚四氟乙烯层。由于聚四氟乙烯具有抗酸抗碱、抗各种有机溶剂的优点，几乎不溶于所有的溶剂，因此，在所述耐腐蚀层为聚四氟乙烯层的情况下，可以使得所述耐腐蚀层相应具有抗酸抗碱、抗各种有机溶剂的优点。
可以理解的是，在实际应用中，所述耐腐蚀层还可以采用橡胶等其他能抗酸抗碱的材质加工而成，本发明实施例对于所述耐腐蚀层的具体材质可以不做限定。
本发明实施例中，支架14可以用于安装固定活塞15，在实际应用中，支架14可以与驱动机构16连接，以在驱动机构16的驱动下，带动活塞15运动，活塞15可以通过所述传动介质带动隔膜11运动，进而促使隔膜11改变工作腔12的大小，使得所述工作流体流入工作腔12，或者流出工作腔12，以实现所述工作流体的泵送。
在实际应用中，驱动机构16可以为电机，所述电机的输出端与支架14连接，以驱动支架14运动，或者，驱动机构16可以包括：电机和减速机；所述减速机的输入轴与所述电机的输出端连接；所述减速机的输出轴与支架14连接，以驱动支架14运动。在具体地应用中，本领域技术人员可以根据实际需要设置驱动机构16的具体形式，本发明实施例对此不做限定。
具体地，所述传动介质为中性的液体或者气体。在实际应用中，在所述传动介质为中性的液体或者气体的情况下，可以避免所述传动介质对隔膜11造成腐蚀，进一步提高隔膜11的使用寿命。
本发明实施例中，所述传动介质的压缩率可以小于所述工作流体的压缩率，以提高所述传动介质对于隔膜11的驱动效果。在实际应用中，在所述传动介质的压缩率小于所述工作流体的压缩率的情况下，在所述传动介质驱动隔膜11运动的过程中，可以使得所述传动介质的体积变化小于所述工作流体的体积变化，提高所述传动介质对于隔膜11的驱动效果。
例如，在所述工作流体为气体的情况下，所述传动介质可以为液体或者压缩率小于所述工作流体的气体，在所述工作流体为液体的情况下，所述传动介质可以为压缩率小于所述工作流体的液体。
在本发明的一种可选实施例中，外壳10内可以设有两个相对间隔设置的容纳腔，两个所述容纳腔可以沿第一方向设置；隔膜11的数量为两个，一个隔膜11设置在一个所述容纳腔内，每个隔膜11将所述容纳腔划分为工作腔12和传动腔13，工作腔12和传动腔13沿所述第一方向设置；支架14的两端分别设置有活塞15，每个活塞15与隔膜 11之间容纳有所述传动介质。
具体地，所述第一方向可以为图3中所示的上下方向。如图3所示，所述隔膜泵中可以包括上下两个间隔设置的容纳腔，两个所述容纳腔可以沿上下方向设置。所述隔膜泵中可以包括上下两个隔膜11，每一个隔膜11设置在一个所述容纳腔内，并将所述容纳腔划分为工作腔12和传动腔13。支架14的两端分别设置有活塞15，上方的活塞15与上方的隔膜11之间容纳有所述传动介质，下方的活塞15与下方的隔膜11之间容纳有所述传动介质。
如图3所示，由于支架14的两端分别设置有活塞15，在支架14朝上方运动的情况下，上方的活塞15可以压缩上方的传动介质，上方的传递介质可以将压力传递至上方的隔膜11上，压缩上方的隔膜11，上方的工作腔12变小，使得上方的工作腔12内的工作流体流出；同时，下方的活塞15可以拉伸下方的传动介质，该传递介质可以将拉力传递至下方的隔膜11上，拉伸下方的隔膜11，下方的工作腔12变小，使得所述工作流体可以流入下方的工作腔12。也就是说，在上方的工作腔12排出工作流体的同时，下方的工作腔12可以吸入工作流体，这样，就可以提高所述隔膜泵泵送所述工作流体的效率。
可以理解是，本发明实施例中仅描述了支架14朝上方运动的实施过程，在实际应用中，在支架14朝下方运动的情况下，参照上述过程即可，本发明实施例在此不做赘述。
本发明实施例中，驱动机构16与支架14连接，驱动机构16可以用于驱动支架16带动活塞15沿所述第一方向往复运动。
在本发明的一种可选实施例中，驱动机构16可以为电机，所述电机的电机轴161可以为偏心轴，偏心轴可以与支架14连接。
在实际应用中，在电机轴161为偏心轴的情况下，在电机的驱动下，电机轴161可以做凸轮运动，由于电机轴161与支架14连接，电机轴161做凸轮运动时，可以带动支架14沿所述第一方向做直线往复运动。这样，在上方的工作腔12排出工作流体的同时，下方的工作腔12可以吸入工作流体，或者，在上方的工作腔12吸入工作流体的同时，下方的工作腔12可以排出工作流体，提高所述隔膜泵泵送所述工作流 体的效率。
在本发明的另一种可选实施例中，驱动机构16可以包括：电机和减速机；所述减速机的输入轴与所述电机的输出端连接；所述减速机的输出轴与支架14连接，所述减速机的输出轴为偏心轴。本发明实施例中，在所述电机和支架14之间设置减速机，不仅可以匹配所述电机和支架14之间的转速，还可以增大所述电机的输出扭矩，进而，可以提高所述电机对于所述支架的驱动可靠性。
在实际应用中，由于所述减速机的输出轴与支架14连接，所述减速机的输出轴为偏心轴，在所述输出轴为偏心轴的情况下，在所述电机的驱动下，所述减速器的输出轴可以做凸轮运动，由于所述输出轴与支架14连接，所述输出轴做凸轮运动时，可以带动支架14沿所述第一方向做直线往复运动。这样，在上方的工作腔12排出工作流体的同时，下方的工作腔12可以吸入工作流体，或者，在上方的工作腔12吸入工作流体的同时，下方的工作腔12可以排出工作流体，提高所述隔膜泵泵送所述工作流体的效率。
本发明实施例中，两个传动腔13分别靠近或者远离支架14设置，以使得两个传动腔13可以在支架14的两端对称设置，这样，就可以使得设置于支架14两端的活塞15可以在支架14的两端对称设置，提高支架14两端的受力均匀性，进而，可以提高支架14对于活塞15的驱动可靠性。
图4是图1所示的隔膜泵的A-A向剖视结构示意图，图5是图1所示的隔膜泵B-B向剖视结构示意图。如图4、图5所示，所述隔膜泵还包括：进水单向阀18，进水单向阀18与工作腔12连通，用于控制所述工作流体流入工作腔12；以及出水单向阀19，出水单向阀19与工作腔12连通，用于控制所述工作流体流出工作腔12。
在实际应用中，每一个工作腔12可以与一个或者多个进水单向阀18连接，以通过进水单向阀18吸入工作流体，同理，每一个工作腔12可以与一个或者多个出水单向阀19连接，以通过出水单向阀19排出工作流体。
具体地，所述隔膜泵还可以设置进水口110和出水口111，进水口110可以与存储工作流体的储流装置连接，用于从所述储流装置中吸入 工作流体，在实际应用中，进水口110可以与进水单向阀18连接，从进水口110进入的工作流体可以通过进水单向阀18进入工作腔12。而出水口111则可以与出水单向阀19连接，用于排出出水单向阀19排出的工作流体，在实际应用中，出水口111可以与喷头连接，从出水口111排出的工作流体可以通过所述喷头进行喷洒。
可以理解的是，图4、图5中仅示出了所述隔膜泵中包括一个进水口110和一个出水口111的情况，而在实际应用中，所述隔膜泵中的进水口110和出水口111的数量可以根据实际情况进行设定，本发明实施例对此不做限定。
综上，本发明实施例所述的隔膜泵至少包括以下优点：
本发明实施例所述的隔膜泵中，隔膜的其中一侧形成有工作腔，所述隔膜的另一相对侧形成有传动腔，所述工作腔可以用于容纳所述工作流体；支架上设有活塞，所述支架位于所述传动腔内，所述活塞与所述隔膜之间容纳有传动介质；驱动机构与所述支架连接，所述驱动机构用于驱动所述支架带动所述活塞运动；当所述驱动机构驱动所述支架时，所述支架带动所述活塞运动，所述活塞通过所述传动介质带动所述隔膜运动，进而促使所述隔膜改变所述工作腔的大小，使得所述工作流体流入所述工作腔，或者流出所述工作腔。在实际应用中，由于所述驱动机构可以通过驱动所述支架带动所述活塞运动，所述活塞可以通过所述传动介质带动所述隔膜运动，这样，就可以避免所述隔膜与所述驱动机构直接连接导致的隔膜形状复杂且隔膜容易破裂的问题，降低所述隔膜的形状复杂度和加工难度，提高所述隔膜的使用寿命，进而，可以使得所述隔膜泵的使用寿命较高。
本发明实施例还提供了一种喷洒系统，所述喷洒系统可以包括：喷头、储流装置以及上述隔膜泵；其中，所述隔膜泵分别与所述喷头、所述储流装置连接。
具体地，所述储流装置可以为储流罐、储流仓或者储流槽等能够储存工作液体的装置，本发明实施例对此不做限定。
本发明实施例所述的隔膜泵中，隔膜的其中一侧形成有工作腔，所述隔膜的另一相对侧形成有传动腔，所述工作腔可以用于容纳所述工 作流体；支架上设有活塞，所述支架位于所述传动腔内，所述活塞与所述隔膜之间容纳有传动介质；驱动机构与所述支架连接，所述驱动机构用于驱动所述支架带动所述活塞运动；当所述驱动机构驱动所述支架时，所述支架带动所述活塞运动，所述活塞通过所述传动介质带动所述隔膜运动，进而促使所述隔膜改变所述工作腔的大小，使得所述工作流体流入所述工作腔，或者流出所述工作腔。在实际应用中，由于所述驱动机构可以通过驱动所述支架带动所述活塞运动，所述活塞可以通过所述传动介质带动所述隔膜运动，这样，就可以避免所述隔膜与所述驱动机构直接连接导致的隔膜形状复杂且隔膜容易破裂的问题，降低所述隔膜的形状复杂度和加工难度，提高所述隔膜的使用寿命，进而，可以使得所述隔膜泵的使用寿命较高。
在实际应用中，所述隔膜泵还可以设置进水口和出水口，所述进水口可以与存储工作流体的储流装置连接，用于从所述储流装置中吸入工作流体，在实际应用中，所述进水口可以与所述进水单向阀连接，从所述进水口进入的工作流体可以通过所述进水单向阀进入工作腔。而所述出水口则可以与所述出水单向阀连接，用于排出所述出水单向阀排出的工作流体，在实际应用中，所述出水口可以与喷头连接，从所述出水口排出的工作流体可以通过所述喷头进行喷洒。
本发明实施例所述的喷洒系统中，由于所述隔膜泵的驱动机构可以通过驱动所述支架带动所述活塞运动，所述活塞可以通过所述传动介质带动所述隔膜运动，这样，就可以避免所述隔膜与所述驱动机构直接连接导致的隔膜形状复杂且隔膜容易破裂的问题，降低所述隔膜的形状复杂度和加工难度，提高所述隔膜的使用寿命，所述隔膜泵的使用寿命较高，进而，可以提高所述喷洒系统的工作稳定性。
本发明实施例还提供了一种无人机，所述无人机具体可以包括：机架以及上述喷洒系统；其中，所述喷洒系统固定于所述机架上。
具体地，所述无人机可以包括但不局限于巡查/监视无人机、农用无人机、气象无人机、勘探无人机以及测绘无人机、侦察无人机、诱饵无人机、电子对抗无人机、通信中继无人机中的任意一种。
本发明实施例所述的无人机中，由于喷洒系统中的隔膜泵中，驱动机构可以通过驱动所述支架带动所述活塞运动，所述活塞可以通过 所述传动介质带动所述隔膜运动，这样，就可以避免所述隔膜与所述驱动机构直接连接导致的隔膜形状复杂且隔膜容易破裂的问题，降低所述隔膜的形状复杂度和加工难度，提高所述隔膜的使用寿命，所述隔膜泵的使用寿命较高，进而，可以提高所述无人机的工作稳定性。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着，结合实施例描述的特定特征、结构或者特性包括在本发明的至少一个实施例中。此外，请注意，这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本发明的实施例可以在没有这些具体细节的情况下被实践。在一些实例中，并未详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。
在权利要求中，不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本发明可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中，这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (17)

  1. 一种隔膜泵，用于泵送工作流体，其特征在于，包括：
    外壳；
    隔膜，所述隔膜固定于所述外壳内，所述隔膜的其中一侧形成有工作腔，所述隔膜的另一相对侧形成有传动腔，所述工作腔用于容纳所述工作流体；
    支架，所述支架上设有活塞，所述支架位于所述传动腔内，所述活塞与所述隔膜之间容纳有传动介质；以及
    驱动机构，所述驱动机构与所述支架连接，所述驱动机构用于驱动所述支架带动所述活塞运动；
    其中，当所述驱动机构驱动所述支架时，所述支架带动所述活塞运动，所述活塞通过所述传动介质带动所述隔膜运动，进而促使所述隔膜改变所述工作腔的大小，使得所述工作流体流入所述工作腔，或者流出所述工作腔。
  2. 根据权利要求1所述的隔膜泵，其特征在于，所述传动介质的压缩率小于所述工作流体的压缩率。
  3. 根据权利要求1所述的隔膜泵，其特征在于，
    所述外壳内设有两个相对间隔设置的容纳腔，两个所述容纳腔沿第一方向设置；
    所述隔膜的数量为两个，一个所述隔膜设置在一个所述容纳腔内，每个所述隔膜将所述容纳腔划分为所述工作腔和所述传动腔，所述工作腔和所述传动腔沿所述第一方向设置；
    所述支架的两端分别设置有活塞，每个所述活塞与所述隔膜之间容纳有传动介质。
  4. 根据权利要求3所述的隔膜泵，其特征在于，所述驱动机构与所述支架连接，所述驱动机构用于驱动所述支架带动所述活塞沿所述第一方向往复运动。
  5. 根据权利要求4所述的隔膜泵，其特征在于，所述驱动机构为电机，所述电机的电机轴为偏心轴，所述偏心轴与所述支架连接。
  6. 根据权利要求4所述的隔膜泵，其特征在于，所述驱动机构包括：电机和减速机；
    所述减速机的输入轴与所述电机的输出端连接；
    所述减速机的输出轴与所述支架连接，所述减速机的输出轴为偏心轴。
  7. 根据权利要求3所述的隔膜泵，其特征在于，两个所述传动腔分别靠近或者远离所述支架设置。
  8. 根据权利要求1所述的隔膜泵，其特征在于，所述隔膜泵还包括：
    进水单向阀，所述进水单向阀与所述工作腔连通，用于控制所述工作流体流入所述工作腔；以及
    出水单向阀，所述出水单向阀与所述工作腔连通，用于控制所述工作流体流出所述工作腔。
  9. 根据权利要求1所述的隔膜泵，其特征在于，所述隔膜为金属隔膜或者塑胶隔膜。
  10. 根据权利要求1所述的隔膜泵，其特征在于，所述隔膜为平面隔膜或者曲面隔膜。
  11. 根据权利要求1所述的隔膜泵，其特征在于，所述隔膜靠近所述工作腔的一侧设置有耐腐蚀层。
  12. 根据权利要求11所述的隔膜泵，所述耐腐蚀层为聚四氟乙烯层。
  13. 根据权利要求1所述的隔膜泵，其特征在于，所述传动介质为中性的液体或者气体。
  14. 根据权利要求1所述的隔膜泵，其特征在于，所述驱动机构为电机，所述电机的输出端与所述支架连接。
  15. 根据权利要求1所述的隔膜泵，其特征在于，所述驱动机构包括：电机和减速机；
    所述减速机的输入轴与所述电机的输出端连接；
    所述减速机的输出轴与所述支架连接。
  16. 一种喷洒系统，其特征在于，所述喷洒系统包括：喷头、储流装置以及权利要求1至15任一项所述的隔膜泵；其中，
    所述隔膜泵分别与所述喷头、所述储流装置连接。
  17. 一种无人机，其特征在于，包括：机架以及权利要求16所述的喷洒系统；其中，
    所述喷洒系统固定于所述机架上。
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