CN211190636U

CN211190636U - Centrifugal spray head, spraying system and movable platform

Info

Publication number: CN211190636U
Application number: CN201921456715.2U
Authority: CN
Inventors: 舒展; 周乐; 周万仁
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd; SZ DJI Innovations Technology Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-08-07
Anticipated expiration: 2029-08-30

Abstract

The embodiment of the utility model provides a centrifugal spray head, a spraying system and a movable platform, wherein, the centrifugal spray head comprises a liquid spraying device, a liquid inlet, a liquid outlet and a pipe body communicated between the liquid inlet and the liquid outlet, and the pipe body forms a liquid flow channel; the valve body device is connected with the cavity; the valve body device comprises a valve seat and a valve core, wherein the valve core is movably arranged on the valve seat and used for moving relative to the valve seat to adjust the liquid flow of the liquid flow channel; the control device is electrically connected with the valve body device and is used for controlling the valve core to move relative to the valve seat; and a driving device connected with the liquid ejecting device, the driving device being capable of driving the liquid ejecting device to eject the liquid; when the driving device does not drive the liquid spraying device to discharge liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge liquid any more. The technical scheme can effectively prevent the liquid medicine of the spray head from leaking.

Description

Centrifugal spray head, spraying system and movable platform

Technical Field

The embodiment of the utility model provides a sprinkling system technical field who relates to plant protection especially relates to centrifugal shower nozzle, sprinkling system and movable platform.

Background

With the improvement of environmental requirements, the standards of spraying systems for preventing dripping are more strict in various countries, for example, the domestic requirement that the quantity of dripping is not more than 5 drops after 5 seconds of spraying stop is met, the Japan requirement that the spraying system can stop spraying within 1 second, and then 1 drop is not allowed to drip.

The traditional centrifugal nozzle can also generate the phenomenon of leakage after stopping spraying, thus not only wasting the liquid medicine, but also polluting crops and environment.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a centrifugal nozzle, sprinkler system and movable platform can effectively save the liquid medicine, can not cause the pollution to the environment because of leaking dripping.

The embodiment of the utility model provides a first aspect provides a centrifugal spray head, include:

the liquid spraying device comprises a liquid inlet, a liquid outlet and a pipe body communicated between the liquid inlet and the liquid outlet, and the pipe body forms a liquid flow channel;

the valve body device is connected to the pipe body; the valve body device comprises a valve seat and a valve core, and the valve core is movably arranged on the valve seat and is used for moving relative to the valve seat to adjust the liquid flow of the liquid flow channel;

the control device is electrically connected with the valve body device and is used for controlling the valve core to move relative to the valve seat; and the number of the first and second groups,

the driving device is connected with the liquid spraying device and can drive the liquid spraying device to discharge the liquid;

when the driving device does not drive the liquid spraying device to discharge the liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge the liquid any more.

Further, in the above-mentioned case,

when the driving device is powered on, the driving device can drive the liquid spraying device to discharge the liquid;

when the driving device is powered off, the driving device does not drive the liquid spraying device to discharge the liquid.

Further, the liquid spraying device comprises a nozzle body, and the valve body device and the liquid flow channel are arranged on the nozzle body.

Further, the liquid spraying apparatus further includes:

the spraying disc is internally provided with a spraying channel communicated with the liquid outlet;

the driving device is connected with the spray disk and used for driving the spray disk to rotate so as to discharge the liquid.

Further, the valve seat is provided with a valve seat channel, the valve seat channel can be communicated with the liquid flow channel, and the valve seat channel can accommodate the valve core;

the control device is used for controlling the valve core to move relative to the valve seat so as to control the opening degree of the valve body device, thereby regulating the liquid flow rate from the liquid flow channel; wherein the movement direction of the valve core is crossed with the extension direction of the liquid flow channel.

Further, the moving direction of the valve core is basically vertical to the extending direction of the liquid flow channel.

Optionally, the liquid flow channel is at least partially formed by a flexible pipe, the valve seat is fixed opposite to the flexible pipe, and the valve core is located outside the flexible pipe and used for abutting against the flexible pipe;

the control device is used for controlling the valve core to move relative to the valve seat so as to press or loosen the flexible pipe, thereby regulating the liquid flow from the liquid flow channel; wherein the movement direction of the valve core is crossed with the axial direction of the hose.

Further, the movement direction of the valve core is basically vertical to the axial direction of the hose.

Furthermore, the valve core is made of a corrosion-resistant magnetic material; or the outer surface of the valve core is wrapped by the corrosion-resistant layer; and/or the presence of a catalyst in the reaction mixture,

the valve seat is made of a corrosion-resistant material; alternatively, the inner surface of the valve seat is coated with a corrosion resistant layer.

Furthermore, the valve body device is an electromagnetic valve, the electromagnetic valve comprises the valve seat, the valve core, an elastic part and an electromagnet, the elastic part is connected between the valve core and the electromagnet, and the electromagnet is electrically connected with the control device.

Further, the elastic piece is made of a corrosion-resistant material; or the outer surface of the elastic piece is wrapped by the corrosion-resistant layer; and/or the control device regulates the liquid flow of the liquid flow channel by controlling the action frequency of the valve core.

Further, the driving device comprises a hollow connecting shaft; a water pump connecting pipe used for being connected with a water pump is arranged in the liquid spraying device;

the water pump connecting pipe is communicated with the hollow connecting shaft to form the liquid flow channel.

Further, the water pump connecting pipe is a hose or a hard pipe.

Further, the driving device also comprises a stator seat and a rotor cover;

the stator seat, the hollow connecting shaft and the liquid spraying device are fixedly connected, and the rotor cover is fixedly connected with the spraying disc.

Further, when the driving device drives the liquid spraying device to discharge the liquid, the valve core can move towards the valve seat.

Further, in the above-mentioned case,

when the driving device drives the liquid spraying device to discharge the liquid, the control device can control the valve core to move towards the valve seat.

Furthermore, the liquid spraying device further comprises an electric adjusting plate, wherein the electric adjusting plate is hermetically arranged in the liquid spraying device and is electrically connected with the driving device so as to adjust the rotating speed of the driving device.

Further, the driving device is a brushless direct current motor, and the electric adjusting plate drives the motor in a PWM (pulse width modulation) mode.

Further, the material of the stator seat and/or the hollow connecting shaft comprises at least one of the following: aluminum alloy, stainless steel, carbon fiber.

Further, the rotor cover is detachably connected with the spray disk.

Further, the connection mode of the rotor cover and the spray disk comprises at least one of the following modes: clamping, screw connection and key connection.

Further, the rotor cover is connected with the hollow connecting shaft through a bearing, and the rotor cover can rotate relative to the hollow connecting shaft.

Further, the rotor cover is detachably connected with the bearing.

Further, a sealing member is disposed below the bearing and between the rotor cover and the hollow connecting shaft, and the sealing member is configured to prevent liquid from flowing back into the bearing.

Further, the spray plate comprises an upper spray plate and a lower spray plate, and the spray channel is formed between the upper spray plate and the lower spray plate.

Furthermore, the middle part of the lower spray plate is sunken towards the direction far away from the upper spray plate to form a liquid accumulation cavity, and the liquid accumulation cavity is communicated with the spray channel.

Further, centrifugal nozzle is applied to agricultural plant protection unmanned aerial vehicle.

The centrifugal sprayer provided by the embodiment comprises a liquid spraying device, wherein the liquid spraying device comprises a liquid inlet, a liquid outlet and a pipe body communicated with the liquid inlet and the liquid outlet, a liquid flow channel is formed in the pipe body, a valve body device is connected to the pipe body, the valve body device comprises a valve seat and a valve core, the valve core can move relative to the valve seat to adjust the liquid flow of the liquid flow channel, a control device controls the valve core to move relative to the valve seat, a driving device is connected with the liquid spraying device, and the driving device can drive the liquid spraying device to discharge; when the driving device does not drive the liquid spraying device to discharge liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge liquid any more. Through set up the valve body device in centrifugal nozzle, through the liquid flow of valve body device control centrifugal nozzle, because the state switching of valve body device is quick, and it is fast to the full-cut-off state switching by opening wide, can stop spouting the back at the shower nozzle, plug up liquid flow channel rapidly through the case to effectively prevent the emergence of weeping phenomenon, effectively save unnecessary liquid medicine extravagant, and can not make the liquid medicine weeping in the non-environment of spraying, can effectively protect the environment.

A second aspect of the embodiments of the present invention provides a spraying system, including a water pump, and a centrifugal nozzle as described above, the water pump with the centrifugal nozzle communicates.

Furthermore, a plurality of centrifugal spray heads are communicated with the same water pump.

Further, it is applied to agricultural plant protection unmanned aerial vehicle to leave sprinkling system.

The spraying system provided by the embodiment comprises a centrifugal sprayer, the centrifugal sprayer comprises a liquid spraying device, the liquid spraying device comprises a liquid inlet, a liquid outlet and a pipe body communicated with the liquid inlet and the liquid outlet, the pipe body forms a liquid flow channel, a valve body device is connected to the pipe body, the valve body device comprises a valve seat and a valve core, the valve core can move relative to the valve seat to adjust the liquid flow of the liquid flow channel, a control device controls the valve core to move relative to the valve seat, a driving device is connected with the liquid spraying device, and the driving device can drive the liquid spraying device to discharge the liquid; when the driving device does not drive the liquid spraying device to discharge liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge liquid any more. Through set up the valve body device in centrifugal nozzle, through the liquid flow of valve body device control centrifugal nozzle, because the state switching of valve body device is quick, and it is fast to the full-cut-off state switching by opening wide, can stop spouting the back at the shower nozzle, plug up liquid flow channel rapidly through the case to effectively prevent the emergence of weeping phenomenon, effectively save unnecessary liquid medicine extravagant, and can not make the liquid medicine weeping in the non-environment of spraying, can effectively protect the environment.

A third aspect of the embodiments of the present invention provides a movable platform, including a frame, and at least one spraying system disposed on the frame;

wherein the spraying system comprises: a water pump, a water tank, and a centrifugal spray head as described in any of the above; the water pump is respectively communicated with the water tank and the centrifugal spray head.

Further, the movable platform comprises an agricultural plant protection unmanned aerial vehicle.

The embodiment of the utility model provides a movable platform, including the frame, and locate at least one sprinkler system of frame; the spraying system comprises a water pump, a water tank and a centrifugal sprayer, the centrifugal sprayer comprises a liquid spraying device and a valve body, the liquid spraying device comprises a liquid inlet, a liquid outlet and the pipe body is communicated with the liquid inlet and the liquid outlet, a liquid flow channel is formed by the pipe body, the valve body device is connected to the pipe body and comprises a valve seat and a valve core, the valve core can move relative to the valve seat to adjust the liquid flow of the liquid flow channel, the control device controls the valve core to move relative to the valve seat, a driving device is connected with the liquid spraying device, and the; when the driving device does not drive the liquid spraying device to discharge liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge liquid any more. Through set up the valve body device in centrifugal nozzle, through the liquid flow of valve body device control centrifugal nozzle, because the state switching of valve body device is quick, and it is fast to the full-cut-off state switching by opening wide, can stop spouting the back at the shower nozzle, plug up liquid flow channel rapidly through the case to effectively prevent the emergence of weeping phenomenon, effectively save unnecessary liquid medicine extravagant, and can not make the liquid medicine weeping in the non-environment of spraying, can effectively protect the environment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a centrifugal nozzle according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a centrifugal nozzle according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a centrifugal spray head according to another embodiment of the present invention;

fig. 4 is an electric control schematic diagram of a centrifugal nozzle provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a movable platform according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

Furthermore, the term "coupled" is intended to include any direct or indirect coupling. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices.

It should be understood that the term "and/or" is used herein only to describe an association relationship of associated objects, and means that there may be three relationships, for example, a1 and/or B1, which may mean: a1 exists alone, A1 and B1 exist simultaneously, and B1 exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

With the improvement of environmental protection requirements, the standards of spraying systems from leaking are becoming stricter in various countries. The centrifugal nozzle throws the liquid medicine out by means of centrifugal force, and can be applied to a spraying system. For example, the centrifugal nozzle used in the movable platform may still have a leakage phenomenon after stopping spraying, but after stopping spraying, the movable platform may have a certain distance from the user, and it is difficult for the user to observe the leakage phenomenon after stopping spraying. Or, the user is inconvenient to observe the centrifugal nozzle when operating the movable platform, and further the phenomenon of drop leakage of the centrifugal nozzle after stopping spraying is difficult to observe. In addition, the leakage of the liquid medicine may cause damage to crops.

The utility model discloses the people has discovered this technical problem through creative work. Because the motor that the drive flail dish is rotatory slows down to the rotational speed and needs certain time when being 0 by high-speed rotation, simultaneously, because the flail dish has certain inertia, leads to traditional centrifugal nozzle still to take place to leak and drip the phenomenon after stopping spouting, so, not only wasted the liquid medicine to still cause the pollution to the environment.

The centrifugal spray head that this embodiment provided can be used for movable platform, for example unmanned aerial vehicle, pesticide spray truck, manpower sprinkler etc.. The drone may be an agricultural plant protection drone. When this centrifugal nozzle is used for unmanned aerial vehicle, centrifugal nozzle can be according to unmanned aerial vehicle's the fine flow of adjusting of speed, can drive hydrojet device discharge liquid, throws away the liquid medicine, forms the droplet. The size of the fog drops can be realized by adjusting the rotating speed and the structure of the nozzle turntable. Above-mentioned centrifugal nozzle is provided with above-mentioned valve body device, can realize just can driving a plurality of centrifugal nozzles with a water pump in unmanned aerial vehicle, and realizes the flow control of each centrifugal nozzle by drive arrangement independent control respectively between each centrifugal nozzle, has overcome the water pump quantity and the shower nozzle quantity phase-match on traditional unmanned aerial vehicle, redundancy, the high cost that causes.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Example one

Fig. 1 is a schematic structural diagram of a centrifugal nozzle according to an embodiment of the present invention; fig. 2 is a cross-sectional view of a centrifugal nozzle according to an embodiment of the present invention. As shown in fig. 1-2, the centrifugal nozzle provided in this embodiment includes: liquid ejecting apparatus 10, valve body apparatus 20, control apparatus 30, and driving apparatus 40.

The liquid spraying device 10 comprises a liquid inlet 11 and a liquid outlet 12, and a liquid flow channel 131 communicating between the liquid inlet 11 and the liquid outlet 12, wherein the liquid flow channel 131 may be formed by a tube 13, or may be formed by a cavity in the liquid spraying device 10, and in this embodiment, it is preferable that the liquid flow channel 131 is formed by the tube 13. The inlet port 11 may be adapted to communicate with a water pump 100 of a sprinkler system and the outlet port 12 may be adapted to communicate with a spray pan or nozzle. The water pump 100 may be in communication with a water reservoir, and the water pump 100 pumps liquid in the water reservoir toward the liquid inlet 11 of the liquid spraying device 10, then through the liquid flow channel 131 to the liquid outlet 12 and out through a spray plate or nozzle.

The valve body device 20 is connected to the pipe body 13; the valve body assembly 20 includes a valve seat 21 and a valve core 22, wherein the valve core 22 is movably disposed on the valve seat 21 and is configured to move relative to the valve seat 21 to adjust a flow rate of the fluid channel 131. The valve body assembly 20 may be fixedly connected to the tube body 13 via a valve seat 21, for example, by being snapped or fastened to the tube body 13, and the valve core 22 is located in the valve seat 21 and is capable of moving inside the valve seat 21, specifically, the valve core 22 is capable of sliding in a predetermined direction in the valve seat 21.

It should be noted that, the valve element 22 moves in the valve seat 21 to adjust the liquid flow rate of the liquid flow channel 131, and specifically, the valve element 22 directly or indirectly occupies the cross-sectional position of the liquid flow channel 131 during the movement process, so as to adjust the liquid flow rate of the liquid flow channel 131. When the spool 22 occupies the full cross-sectional position of the flow channel 131, the flow channel 131 is blocked and liquid cannot be discharged through the flow channel 131; when the spool 22 occupies a partial sectional position of the flow channel 131, the flow channel 131 is partially blocked, and the flow rate of the liquid passing through the flow channel 131 per unit time is reduced; when the spool 22 is completely withdrawn from the cross-sectional position of the flow channel 131, the flow rate of the liquid in the flow channel 131 is maximized.

The flow rate of the liquid flow channel 131 refers to the amount of liquid passing through per unit time. According to the different proportions of the liquid channel 131 occupied by the valve core 22, the corresponding liquid flow rate passing through the liquid channel 131 in unit time is different, so that the liquid flow rate of the liquid channel 131 can be adjusted by adjusting the movement of the valve core 22 in the valve seat 21.

Fig. 4 is an electric control schematic diagram of a centrifugal nozzle provided in the embodiment of the present invention. As shown in fig. 4, the control device 30 according to the embodiment of the present invention is electrically connected to the valve body device 20 for controlling the movement of the valve element 22 relative to the valve seat 21. The driving device 40 is connected to the liquid ejecting apparatus 10, and the driving device 30 can drive the liquid ejecting apparatus 10 to discharge the liquid. Specifically, the liquid may refer to a drug solution, water, or other liquid. The driving device 30 can drive the liquid in the liquid spraying device 10 to generate a larger centrifugal force to be thrown out all around, taking the liquid medicine as an example, the liquid medicine can be dispersed into liquid drops with a smaller volume under the action of the centrifugal force, so that the contact area of the liquid medicine and crops is enlarged, the liquid medicine has a larger diffusion range, and a better liquid medicine spraying effect is realized.

When the driving device 30 no longer drives the liquid spraying device 10 to discharge liquid, the control device 30 can control the valve core 22 to block the liquid channel 131, so that the liquid outlet 12 no longer discharges liquid.

Specifically, the driving device 30 may be electrically connected to the control device 30, and when the driving device 30 is powered on, the driving device 30 can drive the liquid spraying device 10 to discharge the liquid. When the driving device 30 is de-energized, the driving device 30 no longer drives the liquid ejection device 10 to eject the liquid. In other embodiments, the driving device 30 may be capable of driving the liquid ejecting apparatus 10 to eject liquid when the driving device 30 receives a high level signal, and the driving device 30 may not drive the liquid ejecting apparatus 10 to eject liquid when the driving device 30 receives a low level signal.

When the liquid ejecting apparatus 10 is driven by the driving device 30 to discharge the liquid, the valve body 22 can be moved toward the valve seat 21. Specifically, when the driving device 30 drives the liquid ejecting apparatus 10 to discharge the liquid, the control device 30 can control the valve element 22 to move toward the valve seat 21.

The control device 30 may also adjust the liquid flow rate in the liquid flow path 131 by controlling the operating frequency of the valve body 22. It is understood that the faster the operating frequency of the spool 22, the greater the flow rate of the fluid in the fluid passage 131, and the slower the operating frequency of the spool 22, the less the flow rate of the fluid in the fluid passage 131. In one spraying operation, the valve core 22 may be operated at a high frequency for a certain period of time, and the valve core 22 may be operated at a low frequency for a certain period of time, thereby achieving variable frequency spraying. In the case of using one water pump, the control device 30 can control the valve body device 20 to independently control the flow rates of the plurality of centrifugal nozzles.

The driving device 30 can stop driving the liquid spraying device 10 to discharge the liquid after receiving the spray stopping command, and at this time, the control device 30 can synchronously control the valve core 22 to move to block the liquid flow channel 131, that is, when stopping spraying, the control device can immediately block the liquid flow channel 131 through the valve body device 20, thereby playing a role of preventing dripping leakage, wherein the spray stopping command can be triggered by a user or preset by a spraying system. The centrifugal sprayer provided by the embodiment comprises a liquid spraying device, wherein the liquid spraying device comprises a liquid inlet, a liquid outlet and a pipe body communicated with the liquid inlet and the liquid outlet, a liquid flow channel is formed in the pipe body, a valve body device is connected to the pipe body, the valve body device comprises a valve seat and a valve core, the valve core can move relative to the valve seat to adjust the liquid flow of the liquid flow channel, a control device controls the valve core to move relative to the valve seat, a driving device is connected with the liquid spraying device, and the driving device can drive the liquid spraying device to discharge; when the driving device does not drive the liquid spraying device to discharge liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge liquid any more. Through set up the valve body device in centrifugal nozzle, can be through the liquid flow of valve body device control centrifugal nozzle, and because the state switching of valve body device is quick, switch fast to the full-cut-off state by opening wide, can stop spouting the back at the shower nozzle, plug up liquid flow channel rapidly through the case to effectively prevent the emergence of weeping phenomenon, effectively save unnecessary liquid medicine extravagant, and can not make the liquid medicine weeping in the non-environment of spraying, can effectively protect the environment.

Example two

In this embodiment, further, as shown in fig. 1 and 2, the liquid ejecting apparatus 10 may include a head main body 101, and the valve body apparatus 20 and the liquid flow path 131 are provided in the head main body 101. The nozzle body 101 may include an outer housing 1011, the outer housing 1011 enclosing a cavity 1012, and the valve body assembly 20 and the fluid flow passageway 131 may be disposed within the cavity 1012. The driving device 30 may be specifically configured to provide a rotational force to generate a large centrifugal force to the liquid in the liquid flow channel 131, so as to atomize and spray the liquid droplets.

The liquid ejection device 10 may further include a tray 102, and the tray 102 may be formed with a spray passage 1021 inside thereof in communication with the liquid outlet 12. The driving device 30 is connected to the spray plate 102 for driving the spray plate 102 to rotate to discharge the liquid.

Further, the spray pan 102 may include an upper spray pan 1021 and a lower spray pan 1022, with the upper spray pan 1021 and the lower spray pan 1022 defining a spray path therebetween. The spraying channel can be curved or linear, the spraying channel is communicated with the outside, and the liquid enters the spraying channel from the liquid outlet 12 and then is discharged in the form of atomized small droplets. A liquid accumulation cavity 1025 is concavely formed in the middle of the lower spray tray 1022 towards the direction far away from the upper spray tray 1021, and the liquid accumulation cavity 1025 is communicated with the spray channel 1021. The design of the liquid accumulation cavity 1025 can be beneficial to the accumulation of liquid, and when the spray plate 102 rotates at high speed, the accumulated liquid in the liquid accumulation cavity 1025 is enough, so that liquid drops can be uniformly and sufficiently thrown out, and high-quality spraying is realized.

In addition, an electric adjusting plate 50 may be fixed in the cavity 1012, the electric adjusting plate 50 may be hermetically disposed in the liquid spraying device 10, and may be disposed in the cavity 1012 specifically by a fastener (e.g., a screw), the electric adjusting plate 50 is electrically connected to the driving device 30 for adjusting the rotation speed of the driving device 30, and when the driving device 30 is a motor, the electric adjusting plate 50 is specifically used for adjusting the speed of the motor. The electric tuning board 50 may be connected by a wire 60, one end of the wire 60 may be located inside the housing 1011 and connected to the electric tuning board 50, and the other end of the wire 60 may pass through the housing 1011 and pass out of the top of the head main body 101. The trimming board 50 may drive the motor by a PWM wave modulation scheme. And the motor can be an external rotor motor or an internal rotor motor, in this embodiment, preferably, the motor is an external rotor motor.

As shown in fig. 2, the valve seat 21 may have a valve seat passage 211 therein, the valve seat passage 211 being capable of communicating with the flow passage 131, the valve seat passage 211 being capable of accommodating the spool 22. The control device 30 may be used to control the movement of the spool 22 relative to the valve seat 21 to control the opening degree of the valve body device 10, thereby regulating the flow rate of the liquid from the liquid flow channel 131, wherein the movement direction of the spool 22 intersects with the extension direction of the liquid flow channel 131. The valve body device 10 may include an inlet a and an outlet b, the valve seat passage 211 communicates with the inlet a and the outlet b, and the liquid enters the valve seat passage 211 through the inlet a and then flows out of the valve seat passage 211 through the outlet b. As shown in fig. 2, since the valve seat passage 211 communicates with the flow passage 131, the moving direction of the spool 22 intersects with the extending direction of the flow passage 131, thereby making it possible to occupy different positions of the valve seat passage 211 and thus different positions of the flow passage 131 during the movement of the spool 22 in the valve seat 21, and thus adjust the flow rate of the flow passage 131.

In the present embodiment, it is preferable that the movement direction of the spool 22 is substantially perpendicular to the extension direction of the liquid flow channel 131. This allows the spool 22 to occupy the cross-sectional position of the liquid flow path 131 more effectively, and the flow rate of the liquid flow path 131 to be controlled more efficiently, and the structure is designed more simply.

In the present embodiment, the material of the valve core 22 may be a corrosion-resistant material, that is, the entire valve core 22 is made of a corrosion-resistant material, or the outer surface of the valve core 22 is covered by a corrosion-resistant layer. Likewise, the material of the valve seat 21 may also be a corrosion resistant material; alternatively, the inner surface of the valve seat is coated with a corrosion-resistant layer. Therefore, the valve element 22 and the valve seat 21 are not corroded by the contact with the liquid in the liquid flow channel 131, and the service life of the valve body device 20 can be effectively prolonged.

EXAMPLE III

The present embodiment is based on the first embodiment, and provides a different embodiment from the second embodiment. Fig. 3 is a cross-sectional view of a centrifugal nozzle according to another embodiment of the present invention. As shown in fig. 3, the liquid flow channel 131 in the centrifugal nozzle provided by this embodiment may be formed at least partially by a flexible tube, the valve seat 21 is fixed relative to the flexible tube, and the valve core 22 is located outside the flexible tube and is used for abutting against the flexible tube. It is understood that the tube 13 forming the liquid flow channel 131 may be a hose entirely or partially, and specifically, the hose may be a silicone tube or a rubber tube, which is not limited in this embodiment.

The control device 30 can be used to control the movement of the valve core 22 relative to the valve seat 21 to squeeze or release the flexible tube, thereby regulating the flow of liquid from the liquid flow channel 131; when the valve core 22 moves towards the direction of the hose (moves leftwards as shown in fig. 3), the abutting force is applied to the hose, so that the hose is squeezed and then shrinks along the radial direction, the sectional area of the liquid flow channel 131 is reduced, and the liquid flow in the liquid flow channel 131 is reduced, and when the valve core 22 moves away from the direction of the hose (moves rightwards as shown in fig. 3), the abutting force applied to the hose is gradually withdrawn, so that the hose is loosened along the radial direction, and the sectional area of the liquid flow channel 131 is increased until the original sectional area is restored. Wherein, the moving direction of the valve core 22 is crossed with the axial direction of the hose, so that when the valve core 22 moves, force can be applied to the hose to press or loosen the hose.

It should be noted that, in the present embodiment, there may be one or at least two valve body devices 20.

When the valve body device 20 is one, the inner side wall 212 of one side of the valve seat 21 contacts with the first outer side wall p1 of the hose, and one end of the valve core 22 is used for abutting against the second outer side wall p2 of the hose, wherein the first outer side wall p1 and the second outer side wall p2 can be oppositely arranged. During the process of squeezing the hose, the valve core 22 abuts against the second outer side wall p2, so that the second outer side wall p2 is close to the first outer side wall p1, and the cross-sectional area of the liquid flow channel 131 is reduced; when the hose is loosened, the spool 22 moves in a direction away from the second outer side wall p2 to loosen the hose, so that the sectional area of the flow channel 131 is increased.

When the valve body means 20 is two, the valve seats of the two valve body means 20 are communicated, the valve cores 22 of the two valve body means 20 are respectively positioned at opposite sides of the hose, and when the hose is pressed, the two valve cores 22 are relatively close to clamp the hose, so that the sectional area of the liquid flow channel 131 is reduced. When the hose is loosened, the two spools 22 are moved away from each other to loosen the hose, so that the sectional area of the flow channel 131 is increased.

Preferably, the direction of movement of the spool 22 may be substantially perpendicular to the axial direction of the hose. This enables the valve body 22 to apply a force to the hose more effectively, and the flow rate of the liquid in the liquid flow path 131 to be controlled more efficiently, and the structure of the valve body can be designed more simply.

It should be noted that, in this embodiment, because the valve core 22 and the valve seat 21 are both located outside the hose, and the valve core 22 and the valve seat 21 do not contact with the liquid in the liquid flow channel 131, the corrosion phenomenon does not occur, and therefore, the valve core 22 and the valve seat 21 do not need to be made of corrosion-resistant materials, and any common materials are adopted, so that the limitation on the materials is less, and the cost is lower.

Example four

In this embodiment, based on any one of the first to third embodiments, further, the valve body device 20 may be a solenoid valve, the solenoid valve includes a valve seat 21, a valve core 22, an elastic member 23 and an electromagnet 24, the elastic member 23 is connected between the valve core 22 and the electromagnet 24, and the electromagnet 24 is electrically connected to the control device 30. It should be noted that, when the valve body device 10 is an electromagnetic valve, the valve core 22 may be made of corrosion-resistant magnetic material, such as ferromagnetic material, iron cobalt nickel, etc. When the electromagnet 24 is powered on, a magnetic force is generated, the valve core 22 can be attracted by the electromagnet 24 to move towards the electromagnet 24, namely move away from the liquid flow channel 131, the liquid flow channel 131 is opened, and the liquid flows through the liquid flow channel 131 to be sprayed out of the liquid outlet 12, so that spraying is finally realized.

In this embodiment, the elastic member 23 may be an axial spring or a rubber member. When the electromagnet 24 is powered, the valve core 22 moves towards the electromagnet 24 under the attraction of the magnetic force of the electromagnet 24, and overcomes the elastic force of the elastic member 23 during the movement. When the electromagnet 24 is powered off, the magnetic force of the electromagnet 24 disappears, the valve core 22 is in a free state, the elastic part 23 restores deformation to push the valve core 22 to move towards the liquid flow channel 131, and the initial length of the elastic part 23 can be set, so that when the elastic part 23 restores deformation, the valve core 22 can completely block the liquid flow channel 131, and the purpose of preventing dripping is achieved.

It should be noted that, when the present embodiment is based on the second embodiment, the elastic member 23 will contact with the liquid in the liquid flow channel 131, and the corrosion phenomenon is very easy to occur, therefore, the material of the elastic member 23 may be a corrosion-resistant material; for example, stainless steel or aluminum alloy, or the elastic member 23 is a rubber member having corrosion resistance. Alternatively, the outer surface of the elastic member 23 is covered with a corrosion-resistant layer. The purpose of corrosion resistance can be achieved by the above modes.

However, when the present embodiment is based on the third embodiment, since the elastic member 23 is located outside the hose, the elastic member 23 does not contact with the liquid in the liquid flow channel 131, and therefore, corrosion does not occur, and in this case, the material of the elastic member 23 may not be limited, and the cost is low.

EXAMPLE five

In this embodiment, on the basis of any one of the first to fourth embodiments, further, as shown in fig. 2 or fig. 3, the driving device 30 may include a hollow connecting shaft 31; the liquid ejection device 10 is provided with a water pump connection pipe 13a for connecting to the water pump 100. The water pump connection pipe 13a communicates with the hollow connection shaft 31 to form a liquid flow channel 131.

In addition to the second embodiment, as shown in fig. 2, the valve body device 20 may be disposed between the water pump connecting pipe 13a and the hollow connecting shaft 31, the inlet a of the valve seat 21 may communicate with the water pump connecting pipe 13a, and the outlet b of the valve seat 21 may communicate with the hollow connecting shaft 31. The valve body device 20 may be connected to the water pump connecting pipe 13a and the hollow connecting shaft 31 by a quick release joint, or may be directly and sealingly clamped together.

On the basis of the third embodiment, as shown in fig. 3, the valve seat 21 of the valve body device 20 may be directly fixed on the water pump connecting pipe 13a, at this time, the water pump connecting pipe 13a may be a hose, the valve core 22 may directly abut against the water pump connecting pipe 13a to realize the liquid flow adjustment of the liquid flow channel 131, and the water pump connecting pipe 13a is a hose, which may also facilitate the layout of the water pump connecting pipe 13 a.

Of course, in other embodiment modes, the water pump connecting pipe 13a may be a hard pipe, and may be specifically designed according to actual requirements, and this embodiment is not limited.

EXAMPLE six

In this embodiment, on the basis of the fifth embodiment, as shown in fig. 2 or fig. 3, the driving device 30 may further include a stator seat 32 and a rotor cover 33. The stator seat 32, the hollow connecting shaft 31 and the liquid spraying device 10 are fixedly connected, and the rotor cover 33 is fixedly connected with the spraying disc 102. The rotor cover 33 can be sleeved outside the hollow connecting shaft 31, when the driving device 30 is powered on, the hollow connecting shaft 31 and the stator seat 32 are kept stationary as a stator, the rotor cover 33 rotates at a high speed relative to the hollow connecting shaft 31, and then the spray disk 102 is driven to rotate at a high speed, and the liquid in the spray disk 102 generates a larger centrifugal force and is sprayed out in a mist shape in a larger area.

Wherein the material of the stator seat 32 may include at least one of aluminum alloy, stainless steel, and carbon fiber. The material of the hollow connecting shaft 31 may also include at least one of: aluminum alloy, stainless steel, carbon fiber. The aluminum alloy, the stainless steel, the carbon fiber and other materials have the characteristics of corrosion resistance, good strength and difficult damage.

The rotor cover 33 is detachably connected to the nozzle plate 102. Specifically, the connection mode of the rotor cover and the spray disk may include at least one of the following: clamping, screw connection and key connection. In a preferred embodiment, as shown in fig. 1, the rotor cover 33 and the spray disk 102 may be circumferentially fixed, and specifically, a protrusion 331 may be disposed on a sidewall of the rotor cover 33, and a groove 1024 engaged with the protrusion 331 may be disposed on a sidewall of an inner hole of the spray disk 102, thereby achieving the purpose of circumferentially fixing the rotor cover 33 and the spray disk 102. Of course, the protrusion 331 may be disposed on the nozzle plate 102, and the groove 1021 may be disposed on the rotor cover 33, as long as the circumferential fixation of the two can be achieved. In addition, the spray disk 102 and the rotor cover 33 may also be in interference fit, so that the spray disk 102 can be firmly fixed on the rotor cover 33. In other embodiments, the spray disk 102 may be removably coupled to the rotor cover 33 by fasteners, such as screws. Alternatively, the spray disk 102 may be keyed to the rotor cover 33 and fastened thereto by other fasteners. The connection between the nozzle plate 102 and the rotor cover 33 may be various, or may be any connection in combination, as long as the nozzle plate 102 and the rotor cover 33 can be fixed.

Further, as shown in fig. 2 or 3, the rotor cover 33 and the hollow connecting shaft 31 may be connected by a bearing 34, and the rotor cover 33 is rotatable with respect to the hollow connecting shaft 31. The rotor cover 33 can be rotated with respect to the hollow connecting shaft 31 by the bearing 34, and the rotation force is not imparted to the hollow connecting shaft 31, and the stability of the hollow connecting shaft 31 can be effectively maintained. The rotor cover 33 is detachably connected with the bearing 34, for example, the rotor cover 33 is screwed with the bearing 34 by a fastener, or the rotor cover 33 is detachably connected with the bearing 34 by a snap, when the spray plate 102 needs to be detached, the rotor cover 33 can be detached from the bearing 34 together with the spray plate 102.

The spray trays 102 can include a variety of types, and the spray device 10 can be selectively connected to one of the spray trays 102 for spraying, which is highly versatile.

Further, as shown in fig. 2 or 3, a sealing member 70 may be provided below the bearing 34 and between the rotor cover 33 and the hollow connecting shaft 31, the sealing member 70 serving to prevent the liquid from flowing back into the bearing 34. The sealing element 70 may be specifically a skeleton seal, and includes a rigid supporting body and an elastic sealing body, the rigid supporting body provides a supporting force, and the elastic sealing body is used for sealing a connection gap, so that while the structural strength is ensured, a better seal is realized, and the sealing element 70 prevents liquid from flowing back to the bearing 34, so that the bearing 34 can be effectively protected, and the bearing 34 is prevented from being damaged.

EXAMPLE seven

The embodiment provides a spraying system, which comprises a water pump and a centrifugal spray head communicated with the water pump; as shown in fig. 1 to 2, the centrifugal nozzle includes: liquid ejecting apparatus 10, valve body apparatus 20, control apparatus 30, and driving apparatus 40. Multiple centrifugal spray heads may be in communication with the same water pump.

The control device 30 is electrically connected to the valve body device 20 for controlling the movement of the valve element 22 relative to the valve seat 21. The driving device 40 is connected to the liquid ejecting apparatus 10, and the driving device 30 can drive the liquid ejecting apparatus 10 to discharge the liquid. Specifically, the liquid may refer to a drug solution, water, or other liquid. The driving device 30 can drive the liquid in the liquid spraying device 10 to generate a larger centrifugal force to be thrown out all around, taking the liquid medicine as an example, the liquid medicine can be dispersed into liquid drops with a smaller volume under the action of the centrifugal force, so that the contact area of the liquid medicine and crops is enlarged, the liquid medicine has a larger diffusion range, and a better liquid medicine spraying effect is realized.

Specifically, when the driving device 30 is powered on, the driving device 30 can drive the liquid ejection device 10 to discharge the liquid. When the driving device 30 is de-energized, the driving device 30 no longer drives the liquid ejection device 10 to eject the liquid. In other embodiments, the driving device 30 may be capable of driving the liquid ejecting apparatus 10 to eject liquid when the driving device 30 receives a high level signal, and the driving device 30 may not drive the liquid ejecting apparatus 10 to eject liquid when the driving device 30 receives a low level signal.

The driving device 30 can stop driving the liquid spraying device 10 to discharge the liquid after receiving the spray stopping command, and at this time, the control device 30 can synchronously control the valve core 22 to move to block the liquid flow channel 131, that is, when stopping spraying, the control device can immediately block the liquid flow channel 131 through the valve body device 20, thereby playing a role of preventing dripping leakage, wherein the spray stopping command can be triggered by a user or preset by a spraying system.

The spraying system provided by the embodiment comprises a centrifugal sprayer, wherein the centrifugal sprayer comprises a liquid spraying device, the liquid spraying device comprises a liquid inlet, a liquid outlet and a pipe body communicated with the liquid inlet and the liquid outlet, a liquid flow channel is formed in the pipe body, a valve body device is connected to the pipe body, the valve body device comprises a valve seat and a valve core, the valve core can move relative to the valve seat to adjust the liquid flow of the liquid flow channel, a control device controls the valve core to move relative to the valve seat, a driving device is connected with the liquid spraying device, and the driving device can drive the liquid spraying device; when the driving device does not drive the liquid spraying device to discharge liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge liquid any more. Through set up the valve body device in centrifugal nozzle, can be through the liquid flow of valve body device control centrifugal nozzle, and because the state switching of valve body device is quick, switch fast to the full-cut-off state by opening wide, can stop spouting the back at the shower nozzle, plug up liquid flow channel rapidly through the case to effectively prevent the emergence of weeping phenomenon, effectively save unnecessary liquid medicine extravagant, and can not make the liquid medicine weeping in the non-environment of spraying, can effectively protect the environment.

Example eight

This embodiment is based on the seventh embodiment, and further, as shown in fig. 1 and 2, the liquid ejection apparatus 10 may include a head main body 101, and the valve body apparatus 20 and the liquid flow channel 131 are provided in the head main body 101. The nozzle body 101 may include an outer housing 1011, the outer housing 1011 enclosing a cavity 1012, and the valve body assembly 20 and the fluid flow passageway 131 may be disposed within the cavity 1012. The driving device 30 may be specifically configured to provide a rotational force to generate a large centrifugal force to the liquid in the liquid flow channel 131, so as to atomize and spray the liquid droplets.

Further, the spray pan 102 may include an upper spray pan 1021 and a lower spray pan 1022, with the spray passages 1023 formed between the upper spray pan 1021 and the lower spray pan 1022. In addition, an electric adjusting plate 50 may be fixed in the cavity 1012, the electric adjusting plate 50 may be hermetically disposed in the liquid spraying device 10, and may be specifically disposed in the cavity 1012, the electric adjusting plate 50 is electrically connected to the driving device 30 for adjusting the rotation speed of the driving device 30, and when the driving device 30 is a motor, the electric adjusting plate 50 is specifically used for adjusting the speed of the motor. As shown in fig. 2, the valve seat 21 may have a valve seat passage 211 therein, the valve seat passage 211 being capable of communicating with the flow passage 131, the valve seat passage 211 being capable of accommodating the spool 22. The control device 30 may be used to control the movement of the spool 22 relative to the valve seat 21 to control the opening degree of the valve body device 10, thereby regulating the flow rate of the liquid from the liquid flow channel 131, wherein the movement direction of the spool 22 intersects with the extension direction of the liquid flow channel 131.

The structure and function of the centrifugal nozzle in this embodiment are the same as those in the embodiment, and specific reference may be made to the description of the embodiment two, which is not repeated herein.

Example nine

The present embodiment is based on the seventh embodiment, and provides an embodiment mode different from the eighth embodiment on the basis of the seventh embodiment. Fig. 3 is a cross-sectional view of a centrifugal nozzle according to another embodiment of the present invention. As shown in fig. 3, the liquid flow channel 131 in the centrifugal nozzle provided by this embodiment may be formed at least partially by a flexible tube, the valve seat 21 is fixed relative to the flexible tube, and the valve core 22 is located outside the flexible tube and is used for abutting against the flexible tube. The control device 30 can be used to control the movement of the valve core 22 relative to the valve seat 21 to squeeze or release the flexible tube, thereby regulating the flow of liquid from the liquid flow channel 131; when the valve core 22 moves towards the direction of the hose (moves leftwards as shown in fig. 3), the abutting force is applied to the hose, so that the hose is squeezed and then shrinks along the radial direction, the sectional area of the liquid flow channel 131 is reduced, and the liquid flow in the liquid flow channel 131 is reduced, and when the valve core 22 moves away from the direction of the hose (moves rightwards as shown in fig. 3), the abutting force applied to the hose is gradually withdrawn, so that the hose is loosened along the radial direction, and the sectional area of the liquid flow channel 131 is increased until the original sectional area is restored. Wherein, the moving direction of the valve core 22 is crossed with the axial direction of the hose, so that when the valve core 22 moves, force can be applied to the hose to press or loosen the hose.

The structure and function of the centrifugal nozzle in this embodiment are the same as those in the third embodiment, and specific reference may be made to the description of the third embodiment, which is not repeated herein.

Example ten

This embodiment is based on any one of the seventh to ninth embodiments, and further, the valve body device 20 may be a solenoid valve, the solenoid valve includes a valve seat 21, a valve core 22, an elastic member 23 and an electromagnet 24, the elastic member 23 is connected between the valve core 22 and the electromagnet 24, and the electromagnet 24 is electrically connected to the control device 30. In this embodiment, the elastic member 23 may be an axial spring or a rubber member.

The structure and function of the centrifugal nozzle in this embodiment are the same as those in the fourth embodiment, and specific reference may be made to the description of the fourth embodiment, which is not repeated herein.

EXAMPLE eleven

In this embodiment, on the basis of any one of the seventh to tenth embodiments, further, as shown in fig. 2 or 3, the driving device 30 may include a hollow connecting shaft 31; the liquid ejection device 10 is provided with a water pump connection pipe 13a for connecting to the water pump 100. The water pump connection pipe 13a communicates with the hollow connection shaft 31 to form a liquid flow channel 131.

The structure and function of the centrifugal nozzle in this embodiment are the same as those in the fifth embodiment, and specific reference may be made to the description of the fifth embodiment, which is not repeated herein.

Example twelve

In this embodiment, on the basis of the eleventh embodiment, as shown in fig. 2 or fig. 3, the driving device 30 may further include a stator seat 32 and a rotor cover 33. The stator seat 32, the hollow connecting shaft 31 and the liquid spraying device 10 are fixedly connected, and the rotor cover 33 is fixedly connected with the spraying disc 102. The rotor cover 33 can be sleeved outside the hollow connecting shaft 31, when the driving device 30 is powered on, the hollow connecting shaft 31 and the stator seat 32 are kept stationary as a stator, the rotor cover 33 rotates at a high speed relative to the hollow connecting shaft 31, and then the spray disk 102 is driven to rotate at a high speed, and the liquid in the spray disk 102 generates a larger centrifugal force and is sprayed out in a mist shape in a larger area.

The rotor cover 33 is detachably connected to the nozzle plate 102. Specifically, the connection mode of the rotor cover and the spray disk may include at least one of the following: clamping, screw connection and key connection. Further, as shown in fig. 2 or 3, the rotor cover 33 and the hollow connecting shaft 31 may be connected by a bearing 34, and the rotor cover 33 is rotatable with respect to the hollow connecting shaft 31. Further, as shown in fig. 2 or 3, a sealing member 70 may be provided below the bearing 34 and between the rotor cover 33 and the hollow connecting shaft 31, the sealing member 70 serving to prevent the liquid from flowing back into the bearing 34. The sealing element 70 may be specifically a skeleton seal, and includes a rigid supporting body and an elastic sealing body, the rigid supporting body provides a supporting force, and the elastic sealing body is used for sealing a connection gap, so that while the structural strength is ensured, a better seal is realized, and the sealing element 70 prevents liquid from flowing back to the bearing 34, so that the bearing 34 can be effectively protected, and the bearing 34 is prevented from being damaged.

The structure and function of the centrifugal nozzle in this embodiment are the same as those in the sixth embodiment, and specific reference may be made to the description of the sixth embodiment, which is not described herein again.

EXAMPLE thirteen

This embodiment provides a movable platform, and the structural diagram of fig. 5 explains for example movable platform is agricultural plant protection unmanned aerial vehicle. As shown in fig. 5, the agricultural plant protection unmanned aerial vehicle comprises a frame 2000, and at least one spraying system 1000 arranged on the frame; the sprinkler system 1000 includes: water pump 100, water tank 200, and centrifugal spray head 300; water pump 100 is in communication with water tank 200 and spinner 300, respectively. Multiple centrifugal spray heads 300 may be in communication with the same water pump 100.

As shown in fig. 1 to 2, the centrifugal nozzle includes: liquid ejecting apparatus 10, valve body apparatus 20, control apparatus 30, and driving apparatus 40. Multiple centrifugal spray heads may be in communication with the same water pump.

The movable platform provided by the embodiment can be an agricultural plant protection unmanned aerial vehicle and comprises a centrifugal sprayer, the centrifugal sprayer comprises a liquid spraying device, the liquid spraying device comprises a liquid inlet, a liquid outlet and a pipe body communicated with the liquid inlet and the liquid outlet, a liquid flow channel is formed by the pipe body, the valve body device is connected to the pipe body, the valve body device comprises a valve seat and a valve core, the valve core can move relative to the valve seat to adjust the liquid flow of the liquid flow channel, the control device controls the valve core to move relative to the valve seat, a driving device is connected with the liquid spraying device, and the driving device can drive the liquid spraying device to; when the driving device does not drive the liquid spraying device to discharge liquid any more, the control device can control the valve core to block the liquid flow channel, so that the liquid outlet does not discharge liquid any more. Through set up the valve body device in centrifugal nozzle, can be through the liquid flow of valve body device control centrifugal nozzle, and because the state switching of valve body device is quick, switch fast to the full-cut-off state by opening wide, can stop spouting the back at the shower nozzle, plug up liquid flow channel rapidly through the case to effectively prevent the emergence of weeping phenomenon, effectively save unnecessary liquid medicine extravagant, and can not make the liquid medicine weeping in the non-environment of spraying, can effectively protect the environment. And, agricultural plant protection unmanned aerial vehicle generally goes up to have a plurality of centrifugal nozzle, and the centrifugal nozzle quantity among the prior art must match with water pump quantity, the utility model provides a centrifugal nozzle can only use a water pump, controls a plurality of centrifugal nozzle, and flow control between each shower nozzle is still independent.

Example fourteen

This embodiment is based on the thirteenth embodiment, and further, as shown in fig. 1 and 2, the liquid ejection apparatus 10 may include a head main body 101, and the valve body apparatus 20 and the liquid flow path 131 are provided in the head main body 101. The nozzle body 101 may include an outer housing 1011, the outer housing 1011 enclosing a cavity 1012, and the valve body assembly 20 and the fluid flow passageway 131 may be disposed within the cavity 1012. The driving device 30 may be specifically configured to provide a rotational force to generate a large centrifugal force to the liquid in the liquid flow channel 131, so as to atomize and spray the liquid droplets.

Further, the spray pan 102 may include an upper spray pan 1021 and a lower spray pan 1022, with the upper spray pan 1021 and the lower spray pan 1022 defining a spray path therebetween. In addition, an electric adjusting plate 50 may be fixed in the cavity 1012, the electric adjusting plate 50 may be hermetically disposed in the liquid spraying device 10, and may be specifically disposed in the cavity 1012, the electric adjusting plate 50 is electrically connected to the driving device 30 for adjusting the rotation speed of the driving device 30, and when the driving device 30 is a motor, the electric adjusting plate 50 is specifically used for adjusting the speed of the motor. As shown in fig. 2, the valve seat 21 may have a valve seat passage 211 therein, the valve seat passage 211 being capable of communicating with the flow passage 131, the valve seat passage 211 being capable of accommodating the spool 22. The control device 30 may be used to control the movement of the spool 22 relative to the valve seat 21 to control the opening degree of the valve body device 10, thereby regulating the flow rate of the liquid from the liquid flow channel 131, wherein the movement direction of the spool 22 intersects with the extension direction of the liquid flow channel 131.

Example fifteen

The present embodiment is based on the thirteenth embodiment, and provides an embodiment mode different from the fourteenth embodiment on the basis of the thirteenth embodiment. As shown in fig. 3, the liquid flow channel 131 in the centrifugal nozzle provided by this embodiment may be formed at least partially by a flexible tube, the valve seat 21 is fixed relative to the flexible tube, and the valve core 22 is located outside the flexible tube and is used for abutting against the flexible tube. The control device 30 can be used to control the movement of the valve core 22 relative to the valve seat 21 to squeeze or release the flexible tube, thereby regulating the flow of liquid from the liquid flow channel 131; when the valve core 22 moves towards the direction of the hose (moves leftwards as shown in fig. 3), the abutting force is applied to the hose, so that the hose is squeezed and then shrinks along the radial direction, the sectional area of the liquid flow channel 131 is reduced, and the liquid flow in the liquid flow channel 131 is reduced, and when the valve core 22 moves away from the direction of the hose (moves rightwards as shown in fig. 3), the abutting force applied to the hose is gradually withdrawn, so that the hose is loosened along the radial direction, and the sectional area of the liquid flow channel 131 is increased until the original sectional area is restored. Wherein, the moving direction of the valve core 22 is crossed with the axial direction of the hose, so that when the valve core 22 moves, force can be applied to the hose to press or loosen the hose.

Example sixteen

This embodiment is based on any one of the thirteenth to the fifteenth embodiments, and further, the valve body device 20 may be a solenoid valve, the solenoid valve includes a valve seat 21, a valve core 22, an elastic member 23 and an electromagnet 24, the elastic member 23 is connected between the valve core 22 and the electromagnet 24, and the electromagnet 24 is electrically connected to the control device 30. In this embodiment, the elastic member 23 may be an axial spring or a rubber member.

Example seventeen

In this embodiment, on the basis of any one of the thirteenth to sixteenth embodiments, further, as shown in fig. 2 or 3, the driving device 30 may include a hollow connecting shaft 31; the liquid ejection device 10 is provided with a water pump connection pipe 13a for connecting to the water pump 100. The water pump connection pipe 13a communicates with the hollow connection shaft 31 to form a liquid flow channel 131.

EXAMPLE eighteen

In this embodiment, on the basis of the seventeenth embodiment, as shown in fig. 2 or fig. 3, the driving device 30 may further include a stator seat 32 and a rotor cover 33. The stator seat 32, the hollow connecting shaft 31 and the liquid spraying device 10 are fixedly connected, and the rotor cover 33 is fixedly connected with the spraying disc 102. The rotor cover 33 can be sleeved outside the hollow connecting shaft 31, when the driving device 30 is powered on, the hollow connecting shaft 31 and the stator seat 32 are kept stationary as a stator, the rotor cover 33 rotates at a high speed relative to the hollow connecting shaft 31, and then the spray disk 102 is driven to rotate at a high speed, and the liquid in the spray disk 102 generates a larger centrifugal force and is sprayed out in a mist shape in a larger area.

In the several embodiments provided in the present invention, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A centrifugal spray head, comprising:

the driving device is connected with the liquid spraying device and can drive the liquid spraying device to discharge liquid;

2. The centrifugal spray head of claim 1,

3. The centrifugal spray head of claim 1 wherein said liquid spray means comprises a spray head body, said valve body means and said liquid flow passages being provided in said spray head body.

4. The centrifugal spray head according to claim 3, wherein the liquid spraying device further comprises:

5. The centrifugal spray head of claim 1 wherein the valve seat has a valve seat passage therein, the valve seat passage being communicable with the fluid flow passage, the valve seat passage being configured to receive the valve element;

6. The centrifugal spray head of claim 1 wherein the flow passage is formed at least in part by a flexible tube, the valve seat being fixed relative to the flexible tube, the valve element being located outside the flexible tube and adapted to abut against the flexible tube;

7. The showerhead of claim 1, wherein the valve body assembly is a solenoid valve including the valve seat, the valve core, and a resilient member and an electromagnet, the resilient member being connected between the valve core and the electromagnet, the electromagnet being electrically connected to the control device.

8. The centrifugal spray head of claim 4, wherein the drive means comprises a hollow connecting shaft, a stator seat and a rotor cover;

9. The centrifugal spray head of claim 1,

when the driving device drives the liquid spraying device to discharge the liquid, the valve core can move towards the valve seat.

10. The centrifugal spray head of claim 9,

11. The centrifugal spray head according to claim 1, further comprising an electric tuning plate hermetically disposed in the liquid spraying device and electrically connected to the driving device for adjusting a rotation speed of the driving device.

12. A sprinkler system including a water pump and a spinner as claimed in any of claims 1-11, said water pump being in communication with said spinner.

13. The sprinkler system of claim 12, wherein a plurality of the spinner heads are in communication with the same water pump.

14. A movable platform is characterized by comprising a machine frame and at least one spraying system arranged on the machine frame;

wherein the spraying system comprises: a water pump, a water tank, and a centrifugal spray head according to any one of claims 1-11; the water pump is respectively communicated with the water tank and the centrifugal spray head.

15. The movable platform of claim 14, wherein a plurality of the centrifugal spray heads are in communication with the same water pump.