CN216767781U - Impeller pump, sprinkling system and unmanned aerial vehicle - Google Patents

Abstract

The utility model provides an impeller pump, a spraying system and an unmanned aerial vehicle, wherein the impeller pump comprises a pump body, a motor and a partition piece arranged between the pump body and the motor, the pump body, the motor and the partition piece are detachably installed together to form the impeller pump, the pump body comprises a pump shell and an impeller, and the impeller comprises an impeller body and a first magnetic piece; the motor comprises a motor shaft and a second magnetic part fixed on the motor shaft, and the motor shaft drives the second magnetic part to rotate when rotating so as to drive the first magnetic part to drive the impeller body to rotate; the isolating piece is used for isolating liquid in the pump body from entering the motor. According to the embodiment of the utility model, the structure optimization of the impeller pump is realized, the pump body, the motor and the partition piece are detachably mounted, each part of the impeller pump is modularized, the double magnetic pieces provide magnetic transmission for the impeller pump, the partition piece is arranged, so that the liquid cavity of the impeller pump is isolated from the inner cavity of the motor, and the sealing property and the liquid-proof property of the impeller pump are ensured.

Description

Impeller pump, sprinkling system and unmanned aerial vehicle

Technical Field

The utility model relates to the technical field of impeller pumps, in particular to an impeller pump, a spraying system and an unmanned aerial vehicle.

Background

At present, the flow density of pumps such as diaphragm pumps, peristaltic pumps, plunger pumps and the like is generally low, if a high flow is required, the volume and the weight of the pumps need to be set to be large, and the pumps are all volumetric pulsating liquid pumps, so that the flow rate has large pulsation, the flow control is inconvenient, the structures of the pumps are complex, and the problems of low reliability and high production and maintenance cost exist. However, if the vane pump is adopted, the conventional vane pump is insufficient in the aspects of transmission mode and the like, and is difficult to meet the requirement.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is proposed to provide a vane pump, a spraying system and a drone that overcome or at least partially solve the above mentioned problems, comprising:

a vane pump comprising:

the pump body comprises a pump shell and an impeller, and the impeller comprises an impeller body and a first magnetic part;

the motor comprises a motor shaft and a second magnetic part fixed on the motor shaft, and the motor shaft drives the second magnetic part to rotate when rotating so as to drive the first magnetic part to drive the impeller body to rotate; and

and the partition piece is arranged between the pump body and the motor and used for blocking liquid in the pump body from entering the motor, wherein the pump body, the motor and the partition piece are detachably arranged together to form the impeller pump.

Optionally, at least a portion of the first magnetic member and at least a portion of the second magnetic member are both contained in the spacer.

Optionally, both sides of the spacer are provided with recessed structures, and at least a portion of the first magnetic member and at least a portion of the second magnetic member are accommodated in the recessed structures of the spacer.

Optionally, the recessed structure includes a first recessed portion and a second recessed portion, an opening direction of the first recessed portion is opposite to an opening direction of the second recessed portion, at least a portion of the first magnetic member is accommodated in the first recessed portion, and at least a portion of the second magnetic member is accommodated in the second recessed portion.

Optionally, the second recess includes a first groove and a second groove, the first groove and the second groove are arranged in a step, the second magnetic member is accommodated in the first groove, and at least a portion of the housing of the motor is accommodated in the second groove.

Optionally, at least one of the first magnetic member and the second magnetic member is ring-shaped.

Optionally, the first magnetic member is an outer magnetic member far away from one side of the motor shaft, and the second magnetic member is an inner magnetic member close to the motor shaft.

Optionally, the spacer is made of a non-magnetic material.

Optionally, a seal ring is disposed between the spacer and the pump housing.

Optionally, the spacer is fixed to the pump casing by a snap fit.

Optionally, the impeller further comprises an impeller shaft for rotating the impeller body around the shaft, the impeller shaft being integrated with the partition.

Optionally, one side of the impeller body is in contact with the pump casing.

Optionally, a wear part is provided between the impeller body and the impeller shaft.

Optionally, the pump body further comprises a leak-proof valve disposed between the liquid chamber of the impeller pump and the liquid outlet on the pump housing.

Optionally, the axial direction of the leakage-proof valve is perpendicular to the axial center of the impeller.

Optionally, an L-shaped liquid outlet nozzle is arranged at the liquid outlet on the pump shell, the L-shaped liquid outlet nozzle comprises a first part and a second part, the first part is connected with the pump shell in a bolt connection mode, the second part is perpendicular to the first part, and a through L-shaped liquid outlet channel is arranged between the first part and the second part; the leakage-proof valve is arranged in the liquid outlet channel of the first part.

Optionally, the motor is an inner rotor motor or an outer rotor motor.

Optionally, the motor further comprises an electric adjusting plate for controlling the rotating speed.

Optionally, the electrical adjusting plate is manufactured by adopting an encapsulating process.

Optionally, the electric adjusting plate is fixed at the tail of the motor, and a motor plug is arranged on the electric adjusting plate.

Optionally, a water cooling area is further arranged in the liquid cavity of the impeller pump and used for cooling the motor.

Optionally, a recessed structure is disposed on a side of the partition member close to the liquid chamber, and the water cooling region is disposed in the recessed structure of the partition member.

Optionally, the impeller pump is a centrifugal impeller pump, the liquid inlet of the impeller pump is located above the impeller, and the liquid outlet of the impeller pump is located at the side of the impeller.

An unmanned aerial vehicle comprises

An unmanned aerial vehicle body;

the liquid storage tank is connected to the unmanned aerial vehicle body and used for storing liquid; and

at least one impeller pump as described above in communication with the reservoir.

Optionally, the impeller pump is in communication with a liquid outlet at the bottom of the reservoir.

Optionally, the liquid storage tank is connected with the impeller pump through a multi-way pipe, the multi-way pipe comprises a first pipe orifice and one or more second pipe orifices, the first pipe orifice is connected with the liquid outlet of the liquid storage tank, and the one or more second pipe orifices are respectively connected with the impeller pump.

Optionally, the multi-way tube further comprises a third tube orifice arranged opposite to the first tube orifice, the third tube orifice being provided with a sealer with a filter screen, the filter screen of the sealer being inserted into the passage between the first tube orifice and the third tube orifice.

Optionally, the multiway tube has two second nozzles.

Optionally, the two second nozzles are oppositely arranged.

A sprinkler system, comprising:

a vane pump as described above;

and the spray head is connected with the impeller pump.

Optionally, the spray head is a centrifugal spray head.

Optionally, the impeller pump and the spray head are connected through a pipeline.

An unmanned aerial vehicle comprises

An unmanned aerial vehicle body;

the liquid storage tank is connected to the unmanned aerial vehicle body and used for storing liquid; and

at least one set of sprinkler system as above, among the sprinkler system impeller pump and liquid reserve tank intercommunication.

Optionally, the sprinkler head sets up in unmanned aerial vehicle's horn end in the sprinkling system.

Optionally, the liquid storage tank is connected to the impeller pump through a multi-way pipe, the multi-way pipe includes a first pipe orifice and one or more second pipe orifices, the first pipe orifice is connected to the liquid outlet of the liquid storage tank, and the one or more second pipe orifices are respectively connected to the impeller pump.

Optionally, the multi-way tube further comprises a third tube orifice arranged opposite to the first tube orifice, the third tube orifice being provided with a sealer with a filter screen, the filter screen of the sealer being inserted into the passage between the first tube orifice and the third tube orifice.

Optionally, the multiway tube has two second nozzles.

Optionally, the two second nozzles are oppositely arranged.

Optionally, the conduit connecting the impeller pump and the spray head is provided inside the arm of the drone.

The embodiment of the utility model has the following advantages:

in the embodiment of the utility model, the impeller pump comprises a pump body, a motor and a spacer arranged between the pump body and the motor, the pump body, the motor and the spacer are detachably mounted together to form the impeller pump, the pump body comprises a pump shell and an impeller, the impeller comprises an impeller body and a first magnetic part, the motor comprises a motor shaft and a second magnetic part fixed on the motor shaft, the motor shaft drives the second magnetic part to rotate when rotating so as to drive the first magnetic part to drive the impeller body to rotate, the spacer blocks liquid in the pump body from entering the motor, the structure of the impeller pump is optimized, the pump body, the motor and the spacer are detachably mounted, each part of the impeller pump is modularized, the integrated design is avoided, the disassembly and the maintenance are convenient, the magnetic transmission is provided for the impeller pump through the double magnetic parts, the mode that the motor shaft directly connects the impeller is avoided, and the liquid cavity of the impeller pump is isolated from the inner cavity of the motor through the spacer, the sealing performance and the liquid-proof performance of the impeller pump are ensured.

The above description is only an overview of the technical solutions of the present invention, and the present invention can be implemented in accordance with the content of the description so as to make the technical means of the present invention more clearly understood, and the above and other objects, features, and advantages of the present invention will be more clearly understood.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1a is a schematic diagram of an impeller pump according to an embodiment of the present invention;

FIG. 1b is a schematic diagram of an alternative impeller pump according to an embodiment of the present invention;

FIG. 1c is a schematic diagram of an alternative impeller pump according to an embodiment of the present invention;

FIG. 1d is a schematic structural view of another impeller pump according to an embodiment of the present invention;

FIG. 1e is a schematic diagram of another impeller pump according to an embodiment of the present invention;

FIG. 1f is a schematic structural view of another impeller pump according to an embodiment of the present invention;

FIG. 1g is a schematic diagram of an alternative impeller pump according to an embodiment of the present invention;

FIG. 1h is a schematic view of another impeller pump according to an embodiment of the present invention;

FIG. 1i is a schematic diagram of another impeller pump according to an embodiment of the present invention;

fig. 2a is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2b is a schematic structural diagram of another drone according to an embodiment of the present invention;

fig. 2c is a schematic structural diagram of another drone according to an embodiment of the present invention;

fig. 2d is a schematic structural diagram of another drone according to an embodiment of the present invention;

fig. 2e is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another unmanned aerial vehicle according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1a to 1e, schematic structural diagrams of an impeller pump provided by an embodiment of the present invention are shown, wherein fig. 1a is a sectional view, fig. 1b is a front view, fig. 1c is a side view, fig. 1d is a top view, fig. 1e is a bottom view, and fig. 1f is an exploded view.

The impeller pump can include the pump body, motor to and set up the separator between the pump body and motor, and the pump body, motor and separator detachably install together in order constituting the impeller pump, and then realized each part modularization with the impeller pump, avoided the integrated design, the dismouting of being convenient for is maintained.

Pump body

The pump body may include a pump casing 111 and an impeller located inside a chamber formed by the pump casing 111.

The pump casing 111 is provided with a liquid inlet 112 and a liquid outlet 113, and in the case of a centrifugal impeller pump, the liquid inlet 112 may be located above the impeller, and the liquid outlet 113 may be located at the side of the impeller.

The impeller may include an impeller body 121, an impeller shaft 122 for allowing the impeller body 121 to rotate around the shaft, and a first magnetic member 123, which may be fixed to the impeller body 121.

In an embodiment of the present invention, one side of the impeller body 121 may contact the pump casing 111, specifically, one side of the top of the impeller body 121 may contact the pump casing 111, so as to perform axial position limitation.

In an embodiment of the present invention, a wear-resistant member 124 may be disposed between the impeller body 121 and the impeller shaft 122, and the wear-resistant member 124 may be embedded in the impeller body 121, so as to reduce wear between the impeller body 121 and the impeller shaft 122.

In an embodiment of the present invention, in order to prevent the liquid from leaking from the liquid outlet 113 after the impeller pump stops working, the pump body may further be provided with a leakage prevention valve, which may be disposed between the liquid chamber of the impeller pump and the liquid outlet 113 on the pump housing 111, and when the impeller pump stops working, the leakage prevention valve may seal the pump to prevent the liquid from leaking, and when the impeller pump starts working, the leakage prevention valve may be flushed away by the liquid.

Specifically, the leakage prevention valve may include a leakage prevention valve core 131 and a leakage prevention valve spring 132 connected to the leakage prevention valve core 131, an axial direction of the leakage prevention valve is perpendicular to an axis of the impeller, an L-shaped liquid outlet 114 is disposed at a liquid outlet 113 on the pump housing 111, and a water pipe nut 115 may be disposed at a top of the L-shaped liquid outlet 114.

The L-shaped liquid outlet nozzle 114 may include a first portion and a second portion, the first portion may be connected to the pump housing 111 by a bolt, and a joint sealing ring 133 may be disposed at the joint, the second portion may be perpendicular to the first portion, a through L-shaped liquid outlet channel may be disposed between the first portion and the second portion, the leakage-proof valve may be disposed in the liquid outlet channel of the first portion, the leakage-proof valve core 131 may be located at a side close to the pump housing 111, and the leakage-proof valve spring 132 connected to another side of the leakage-proof valve core 131 may be fixedly connected to the second portion.

In an embodiment of the present invention, a locking nut 141 may be further provided on the top of the pump housing 111 to fix when other devices are connected.

Electrical machine

The motor 210 can include the motor shaft 211 and be fixed in the second magnetism piece 221 of motor shaft 211, and the motor shaft 211 can drive the rotation of second magnetism piece 221 when rotating, and then can drive first magnetism piece 123 in the impeller, and first magnetism piece 123 can drive impeller body 121 rotatory, and then can rotate through a pair of magnetism piece synchronization, realizes the magnetic drive to the impeller.

In an embodiment of the present invention, at least one of the first magnetic member 123 and the second magnetic member 221 may be in a ring shape, for example, the first magnetic member 123 and the second magnetic member 221 are both in a ring shape, i.e., a double magnetic ring structure.

In an embodiment of the present invention, the first magnetic member 123 may be an outer magnetic member, such as an outer magnetic ring, on a side away from the motor shaft 211, and the second magnetic member 221 may be an inner magnetic member, such as an inner magnetic ring, near the motor shaft 211.

In an embodiment of the present invention, the motor 210 may be an internal rotor motor or an external rotor motor, which may be a brushless motor, and is composed of a motor body and a driver, and operates in a self-control manner.

As shown in fig. 1 a-1 e, the vane pump is an inner rotor brushless motor, the motor 210 in the vane pump may have a motor inner rotor 241, a motor rotor holder 251, and a motor base 2151, the motor rotor 241 is disposed inside the motor, i.e., an inner rotor motor, as shown in fig. 1g, the vane pump is an outer rotor brushless motor, and the motor 210 in the vane pump may have a motor outer rotor 242, i.e., an outer rotor motor.

In an embodiment of the present invention, in the case that the motor is an external rotor brushless motor, the vane pump may also not adopt a magnetic transmission manner, i.e. there is no inner and outer magnetic members, as shown in fig. 1h, the vane pump adopts a manner that a motor shaft directly connects to the vane, and the vane pump has a pump housing 411, a vane 412, an oil seal 413, a motor seat 414, a motor shaft 415, and a motor external rotor 416.

In an embodiment of the present invention, the motor 210 may further include an electrical tuning board 231 for controlling a rotation speed, which may be manufactured by an encapsulation process, and may ensure a waterproof performance of the motor 210, the electrical tuning board 231 may be fixed to a tail portion of the motor 210, and a motor plug 232 may be disposed on the electrical tuning board 231, so as to facilitate connection of the motor 210.

In an embodiment of the present invention, the motor 210 may further include a motor sealing ring 261, a motor oil seal 271, a motor bearing 281, a motor core 291, a motor coil 2101, an electromagnetic magnet 2111, a motor yoke 2121, and the like, and a gasket 2131 and a snap spring 2141 may be further disposed between the second magnetic member 221 and the impeller shaft 122.

Spacer

The isolating piece 311 can be arranged between the pump body and the motor 210, and the isolating piece 311 can be arranged to prevent liquid in the pump body from entering the motor 210, so that an isolating design can be adopted for a liquid cavity of the impeller pump and an inner cavity of the motor, and the sealing performance and the corrosion resistance performance of the impeller pump are improved.

In an embodiment of the present invention, at least a portion of the first magnetic member 123 and at least a portion of the second magnetic member 221 may be both received in the spacer 311, and in particular, both sides of the spacer 311 may be provided with a recessed structure, and at least a portion of the first magnetic member 123 and at least a portion of the second magnetic member 221 may be received in the recessed structure of the spacer 311, and by receiving at least a portion of the first magnetic member 123 and at least a portion of the second magnetic member 221 in the recessed structure, the occupation of the internal space of the vane pump can be reduced, and thus the volume of the vane pump can be reduced.

In practice, the recess structure 311 may include a first recess and a second recess, the opening direction of the first recess is opposite to the opening direction of the second recess, at least a portion of the first magnetic member 123 is accommodated in the first recess, and at least a portion of the second magnetic member 221 is accommodated in the second recess.

In an embodiment of the present invention, the second recess may include a first recess and a second recess, the first recess and the second recess may be arranged in a step, the second magnetic member 221 may be received in the first recess, and at least a portion of the housing of the motor may be received in the second recess, and by receiving at least a portion of the housing of the motor in the recess of the spacer 311, the axial length of the vane pump can be reduced.

In addition, the partition part 311 is arranged between the pump body and the motor 210, so that the impeller pump is prevented from adopting an integrated structure, the mutual isolation of all parts in the impeller pump is realized, and the pump body, the motor 210 and other parts in the impeller pump can be better separated.

In an embodiment of the present invention, since the isolation sleeve 311 isolates the liquid chamber of the vane pump from the inner chamber of the motor, and the vane shaft 122 extends from the inner chamber of the motor to the liquid chamber of the vane pump, the vane shaft 122 may be integrated with the isolation member 311, which may be specifically disposed in the middle of the isolation member 311, so as to ensure the use of the vane shaft 122 and not affect the isolation effect of the isolation member 311.

In an embodiment of the present invention, since the impeller adopts magnetic transmission, the impeller in the pump body is provided with the first magnetic member 123, and the motor 210 is provided with the second magnetic member 221, the spacer 311 arranged between the pump body and the motor 210 can adopt non-magnetic conductive material to avoid the influence on the magnetic transmission.

In an embodiment of the present invention, in order to ensure that the spacer 311 completely isolates the liquid chamber of the vane pump from the inner cavity of the motor, a sealing ring 321 may be disposed between the spacer 311 and the pump casing 111, that is, the space between the liquid spacer 311 and the pump casing 111 may be sealed, so as to ensure that no gap occurs.

In an embodiment of the present invention, in order to facilitate detaching the pump casing 111, the spacer 311 and the pump casing 111 may be fixed by a snap, so that the pump casing 111 may be conveniently detached, and the impeller may be taken out for cleaning after the pump casing 111 is detached.

In an embodiment of the present invention, the impeller pump may further include a water cooling area disposed in the liquid chamber, and the liquid in the water cooling area may be used to cool the motor 210. Specifically, as shown in fig. 1i, a liquid containing structure 331 is disposed on one side of the liquid cavity of the partition 311 close to the vane pump, the water cooling region can be disposed on the liquid containing structure 331 of the partition 311, the liquid containing structure 331 can be a hollow structure contacting the motor 210 in the liquid supply cavity, because a sealing ring is disposed between the partition and the motor, the liquid containing structure 331 can ensure that the liquid does not enter the motor 210 though being a hollow structure, and further the liquid in the liquid cavity can contact the end surface of the motor 210 through the liquid containing structure 331 in the partition 311.

In the embodiment of the utility model, the impeller pump comprises a pump body, a motor 210 and a spacer 311 arranged between the pump body and the motor 210, the pump body, the motor 210 and the spacer 311 are detachably mounted together to form the impeller pump, the pump body comprises a pump shell 111 and an impeller, the impeller comprises an impeller body 121 and a first magnetic part 123, the motor 210 comprises a motor shaft 211 and a second magnetic part 221 fixed on the motor shaft 211, the motor shaft 211 drives the second magnetic part 221 to rotate when rotating so as to drive the first magnetic part 123 to drive the impeller body 121 to rotate, the spacer 311 blocks liquid in the pump body from entering the motor 210, the structure optimization of the impeller pump is realized, the pump body, the motor 210 and the spacer 311 are detachably mounted, all parts of the impeller pump are modularized, the integrated design is avoided, the disassembly and the maintenance are convenient, the magnetic transmission is provided for the impeller pump through the double magnetic parts, the mode that the impeller is directly connected with the motor shaft is avoided, by arranging the partition 311, the liquid cavity of the impeller pump is isolated from the inner cavity of the motor, and the sealing property and the liquid-proof property of the impeller pump are ensured.

Fig. 2a to fig. 2e show schematic structural diagrams of an unmanned aerial vehicle according to an embodiment of the present invention, where fig. 2a is a schematic structural diagram of an unmanned aerial vehicle including an unmanned aerial vehicle body, fig. 2b to fig. 2e are schematic structural diagrams of a liquid storage tank and an impeller pump in the unmanned aerial vehicle, fig. 2b is an exploded view, fig. 2c is a view from one perspective, fig. 2d is a view from another perspective, and fig. 2e is a view from another perspective.

Unmanned aerial vehicle can include the unmanned aerial vehicle body, connect in the liquid reserve tank 11 of unmanned aerial vehicle body to and at least one impeller pump 21 as above, liquid reserve tank 11 can be used for storing liquid, impeller pump 21 can communicate with liquid reserve tank 11, for the ease of the suction of liquid, prevent surplus liquid in the liquid reserve tank 11, impeller pump 21 can communicate with the liquid outlet of liquid reserve tank 11 bottom.

Specifically, the liquid storage tank 11 may be connected to the impeller pump 21 through the multi-way pipe 31, for example, the multi-way pipe may be a three-way pipe or a four-way pipe, the multi-way pipe 31 may include a first pipe orifice and one or more second pipe orifices, the first pipe orifice is connected to the liquid outlet of the liquid storage tank 11, the one or more second pipe orifices are connected to the impeller pump 21, and a sealing ring 61 may be disposed between the second pipe orifice and the impeller pump 21.

In an embodiment of the present invention, the multi-way pipe 31 may have two second pipe orifices, and the two second pipe orifices are disposed opposite to each other and respectively connected to the two vane pumps 21, that is, the two vane pumps 21 may be disposed opposite to each other.

In an embodiment of the present invention, the multi-way tube 31 further comprises a third tube opening arranged opposite to the first tube opening, the third tube opening is provided with a sealer 51 with a filter screen 41, the filter screen 41 of the sealer 51 is inserted into a channel between the first tube opening and the third tube opening, and the sealer 51 with the filter screen 41 is arranged, so that the filter screen can be cleaned and replaced conveniently on one hand, and can be used for cleaning residual liquid medicine in the medicine box on the other hand.

In an embodiment of the utility model, the drone may also be provided with a protective shell 71 to protect the internal structure.

In the embodiment of the utility model, the unmanned aerial vehicle comprises an unmanned aerial vehicle body, the liquid storage tank 11 connected with the unmanned aerial vehicle body and at least one impeller pump 21 communicated with the liquid storage tank 11, so that the impeller pump 21 is arranged in the unmanned aerial vehicle, the flow density of spraying operation of the unmanned aerial vehicle is improved, the impeller pump 21 is convenient for flow control, and the unmanned aerial vehicle has the advantages of small volume, simple structure, high reliability and low production and maintenance cost.

An embodiment of the present invention further provides a spraying system, which may include the impeller pump and a nozzle connected to the impeller pump, where the nozzle may be a centrifugal nozzle, and the impeller pump and the nozzle may be connected through a pipeline, so that liquid pumped by the impeller pump is sprayed through the nozzle, and a spraying effect is improved.

Referring to fig. 3, a schematic structural diagram of another unmanned aerial vehicle according to an embodiment of the present invention is shown, the unmanned aerial vehicle may include an unmanned aerial vehicle body, a liquid storage tank 11 connected to the unmanned aerial vehicle body, and at least one set of spraying system as described above, the liquid storage tank 11 may be used for storing liquid, an impeller pump 21 in the spraying system is communicated with the liquid storage tank 11, and the impeller pump 21 may be communicated with a liquid outlet at the bottom of the liquid storage tank 11 for facilitating liquid suction and preventing residual liquid in the liquid storage tank 11.

In an embodiment of the present invention, the spraying nozzle 81 in the spraying system may be disposed at the end of the arm of the drone, and the pipe 91 connecting the impeller pump 21 and the spraying nozzle 81 may be disposed inside the arm of the drone.

Specifically, the liquid storage tank 11 can be connected with the impeller pump 21 through a multi-way pipe, for example, the multi-way pipe can be a three-way pipe or a four-way pipe, the multi-way pipe can include a first pipe orifice and one or more second pipe orifices, the first pipe orifice is connected with the liquid outlet of the liquid storage tank 11, one or more second pipe orifices are respectively connected with the impeller pump 21, and a sealing ring can be arranged between the second pipe orifice and the impeller pump 21.

In an embodiment of the present invention, the multi-way pipe may have two second pipe openings, and the two second pipe openings are oppositely disposed and respectively connected to the two vane pumps 21, that is, the two vane pumps 21 may be oppositely disposed.

In an embodiment of the utility model, the multi-way pipe further comprises a third pipe orifice arranged opposite to the first pipe orifice, the third pipe orifice is provided with a sealer with a filter screen, the filter screen of the sealer is inserted into a channel between the first pipe orifice and the third pipe orifice, and the sealer with the filter screen is arranged, so that the filter screen can be cleaned and replaced conveniently, and the sealer can be used for cleaning residual liquid medicine in the medicine box.

In an embodiment of the present invention, the drone may also be provided with a protective shell to protect the internal structure.

In the embodiment of the utility model, the unmanned aerial vehicle comprises an unmanned aerial vehicle body, a liquid storage tank 11 connected to the unmanned aerial vehicle body and at least one set of spraying system, wherein an impeller pump 21 in the spraying system is communicated with the liquid storage tank 11, so that the spraying system comprising the impeller pump 21 is configured in the unmanned aerial vehicle, the flow density and the spraying effect of the spraying operation of the unmanned aerial vehicle are improved, the impeller pump 21 in the spraying system is convenient for flow control, and has the advantages of small volume, simpler structure, higher reliability and lower production and maintenance cost, and a spray head 81 connected with the impeller pump 21 in the spraying system can greatly improve the spraying effect of the impeller pump.

The embodiments in the present specification are all described in a progressive manner, and each embodiment focuses on differences from other embodiments, and portions that are the same and similar between the embodiments may be referred to each other.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The impeller pump, the spraying system and the unmanned aerial vehicle provided by the utility model are described in detail, specific examples are applied in the detailed description to explain the principle and the implementation mode of the utility model, and the description of the embodiments is only used for helping to understand the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (20)

1. A vane pump, comprising:

the pump body comprises a pump shell and an impeller, and the impeller comprises an impeller body and a first magnetic part;

the motor comprises a motor shaft and a second magnetic part fixed on the motor shaft, and the motor shaft drives the second magnetic part to rotate when rotating so as to drive the first magnetic part to drive the impeller body to rotate; and

and the partition is arranged between the pump body and the motor and used for blocking liquid in the pump body from entering the motor, wherein the pump body, the motor and the partition are detachably mounted together to form the impeller pump.

2. The impeller pump of claim 1, wherein at least a portion of said first magnetic member and at least a portion of said second magnetic member are each received in said spacer.

3. The vane pump of claim 2 wherein said spacer is provided with a recessed structure on both sides thereof, at least a portion of said first magnetic member and at least a portion of said second magnetic member being received in said recessed structure of said spacer.

4. The vane pump of claim 3 wherein said recess structure comprises a first recess and a second recess, said first recess opening in a direction opposite to the direction of said second recess, at least a portion of said first magnetic member being received in said first recess, and at least a portion of said second magnetic member being received in said second recess.

5. The vane pump of claim 4 wherein said second recess comprises a first recess and a second recess, said first recess and said second recess being in a stepped arrangement, said second magnetic member being received in said first recess, at least a portion of a housing of said motor being received in said second recess.

6. The impeller pump of claim 1, wherein at least one of said first magnetic member and said second magnetic member is annular.

7. The impeller pump of claim 1, wherein said first magnetic member is an outer magnetic member on a side away from said motor shaft, and said second magnetic member is an inner magnetic member adjacent to said motor shaft.

8. Impeller pump according to claim 1, characterized in that the spacers are of a non-magnetic material.

9. A vane pump as set forth in claim 1 wherein a seal is disposed between said spacer and said pump casing.

10. The impeller pump of claim 9, wherein said spacer is snap-fit to said pump casing.

11. The impeller pump of claim 1, wherein said impeller further comprises an impeller shaft for providing axial rotation of said impeller body, said impeller shaft being integral with said spacer.

12. The impeller pump of claim 1, wherein one side of said impeller body is in contact with said pump casing.

13. The impeller pump of claim 11, wherein a wear member is disposed between the impeller body and the impeller shaft.

14. The impeller pump of claim 1, wherein said pump body further comprises a leak-proof valve disposed between a liquid chamber of said impeller pump and a liquid outlet on said pump housing.

15. The impeller pump of claim 14, wherein the axial direction of said leak-proof valve is perpendicular to the axial center of said impeller.

16. Impeller pump according to claim 14 or 15, characterized in that an L-shaped outlet nozzle is arranged at the outlet on the pump housing, the L-shaped outlet nozzle comprises a first part and a second part, the first part is connected with the pump housing by means of bolt connection, the second part is perpendicular to the first part, and a through L-shaped outlet channel is arranged between the first part and the second part; the leakage-proof valve is arranged in the liquid outlet channel of the first part.

17. The impeller pump according to claim 1, wherein the liquid chamber of the impeller pump is further provided with a water cooling region for cooling the motor.

18. An unmanned aerial vehicle, which is characterized by comprising

An unmanned aerial vehicle body;

the liquid storage tank is connected to the unmanned aerial vehicle body and used for storing liquid; and

at least one vane pump according to any one of claims 1 to 17 in communication with the reservoir.

19. A sprinkler system, comprising:

a vane pump according to any one of claims 1 to 17;

and the spray head is connected with the impeller pump.

20. An unmanned aerial vehicle, which is characterized by comprising

An unmanned aerial vehicle body;

the liquid storage tank is connected to the unmanned aerial vehicle body and used for storing liquid; and

at least one spray system as claimed in claim 19 in which an impeller pump is in communication with the reservoir.

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