CN111683756A

CN111683756A - Spray head device, spraying system, movable platform and spraying operation method thereof

Info

Publication number: CN111683756A
Application number: CN201980009278.6A
Authority: CN
Inventors: 舒展; 黄稀荻; 周万仁
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-09-18
Also published as: WO2020220215A1

Abstract

A sprinkler device, a sprinkler system, a movable platform and a method of sprinkler operation thereof, the sprinkler device (100) comprising: the first sub-sprayer (110), the second sub-sprayer (120) and the switching device (130), wherein the switching device (130) is respectively communicated with the first inlet nozzle and the second inlet nozzle and controls liquid to be selectively sprayed through the first sub-sprayer (110) or the second sub-sprayer (120); under the condition of the same hydraulic pressure of the liquid, the spraying parameters of the first sub-sprayer (110) are different from the spraying parameters of the second sub-sprayer (120), and the spraying parameters comprise at least one of the following parameters: spraying flow and spraying amplitude. The liquid is controlled by the switching device to be sprayed out by the spray head devices with different spraying parameters, the flow and the spray amplitude are changed in the spraying process, the time for manually replacing the nozzle is saved, the spraying efficiency is improved, the leakage is prevented, the safety is improved, and the user experience is improved.

Description

Spray head device, spraying system, movable platform and spraying operation method thereof

Technical Field

The invention relates to the technical field of spray heads, in particular to a spray head device, a spraying system, a movable platform and a spraying operation method thereof.

Background

The pressure type spraying system has the advantages of uniform spraying, good droplet settleability, wide spraying range, simple structure and the like, and is widely applied in recent years. The common pressure type spraying system is a quantitative spraying system, and variable spraying cannot be realized unless a nozzle is replaced. Because the nozzle can only be replaced when the spraying operation is not carried out, on one hand, the operation efficiency is influenced, and on the other hand, the requirement of changing the flow rate in the spraying operation cannot be met. In addition, the spray head in the existing spraying device has liquid leakage after being closed, so that the liquid in the spraying device is wasted, and the leaked liquid can cause pollution to the environment.

Therefore, the spraying device in the prior art has the problem that the flow or the liquid can not be changed in the spraying process, so that the user experience is poor.

Disclosure of Invention

The embodiment of the invention provides a spray head device, a spraying system, a movable platform and a spraying operation method thereof, which aim to solve the problem that the flow cannot be changed or liquid is leaked in the spraying process of a spraying device.

According to a first aspect of embodiments of the present invention, there is provided a head apparatus including:

the first sub-sprayer comprises a first water inlet nozzle and a first nozzle, and liquid can enter from the first water inlet nozzle and is sprayed out through the first nozzle;

the second sub-sprayer comprises a second water inlet nozzle and a second nozzle, and the liquid can enter from the second water inlet nozzle and is sprayed out through the second nozzle;

a switching device which is respectively communicated with the first water inlet nozzle and the second water inlet nozzle,

wherein the switching device controls the liquid to selectively flow in from the first inlet nozzle or the second inlet nozzle, so as to control the liquid to be sprayed through the first sub-spray head or the second sub-spray head;

under the condition of the same hydraulic pressure of the liquid, the spraying parameters of the first sub-sprayer are different from the spraying parameters of the second sub-sprayer, and the spraying parameters comprise at least one of the following parameters: spraying flow and spraying amplitude.

According to a second aspect of embodiments of the present invention there is provided a spraying system comprising:

at least one spray head apparatus as described in the first aspect;

at least one connecting pipe;

and the pressure device is used for providing pressure to the liquid so that the liquid is sprayed out of the spray head through the connecting pipeline.

According to a third aspect of embodiments of the present invention, there is provided a movable platform comprising:

a movable platform body;

at least one spray head apparatus according to the first aspect on the moveable platform body; and/or at least one spraying system according to the second aspect located on the movable platform body.

According to a fourth aspect of the embodiments of the present invention, there is provided a flight spraying operation method of an agricultural plant protection machine, including:

receiving a spray head control instruction;

controlling a switching device according to the spray head control instruction so as to change the spraying parameters of the spray head device; the switching device is communicated with a first sub-sprayer and a second sub-sprayer of the sprayer device, and can control liquid to selectively control the liquid to be sprayed through the first sub-sprayer or the second sub-sprayer; under the condition of the same hydraulic pressure of the liquid, the spraying parameters of the first sub-sprayer are different from the spraying parameters of the second sub-sprayer, and the spraying parameters comprise at least one of the following parameters: spraying flow and spraying amplitude.

According to the spray head device, the spray system, the movable platform and the spray operation method of the embodiment of the invention, the switching device is used for controlling the liquid to be sprayed out from the spray head devices with different spray parameters, so that the flow and the spray amplitude are changed in the spray process, the time for manually replacing the nozzle is saved, the spray efficiency can be improved, the leakage can be prevented, the safety is improved, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a showerhead apparatus according to an embodiment of the present invention;

fig. 2 is an example of an electric valve device of the embodiment of the invention;

FIG. 3 is a schematic view of a sprinkler system according to an embodiment of the invention;

FIG. 4 is an example of a sprinkler system of an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

With the gradual maturity and popularization of the unmanned aerial vehicle plant protection industry, the requirement on the spraying quality is higher and higher, the existing spraying mode generally adopts quantitative spraying and can not change the spraying amplitude, when spraying objects with different areas are encountered or the spraying direction needs to be changed, such as turning, the problem of re-spraying/missing spraying can not be avoided, the re-spraying can cause the waste of the sprayed liquid, and if the sprayed liquid is chemical liquid, the environment can be polluted; the spray leakage can seriously reduce the spraying effect. Based on current spray mode, can only stop spraying the operation and carry out the change of shower nozzle to changing spray mode, when changing the shower nozzle, the inevitable contact with the liquid that sprays of user has certain potential safety hazard, and these all can cause user experience poor. This kind of mode not only influences and sprays the operating efficiency, also can not satisfy the demand that changes and spray the flow and spout the width of cloth at the operation in-process that sprays.

In view of the above, an embodiment of the present invention provides a spray head device, and referring to fig. 1, fig. 1 shows a schematic diagram of a spray head device according to an embodiment of the present invention. As shown in fig. 1, the head apparatus 100 includes:

a first sub-nozzle 110 including a first water inlet nozzle through which liquid can enter and be ejected therethrough and a first nozzle;

a second sub-nozzle 120 including a second water inlet nozzle and a second nozzle, through which the liquid can enter;

a switching device 130, respectively communicating with the first inlet nozzle and the second inlet nozzle, wherein the switching device 130 controls the liquid to selectively flow in from the first inlet nozzle or the second inlet nozzle, so as to control the liquid to be sprayed through the first sub-sprayer 110 or the second sub-sprayer 120;

wherein, under the same hydraulic pressure of the liquid, the spraying parameters of the first sub-sprayer 110 are different from the spraying parameters of the second sub-sprayer 120, and the spraying parameters include at least one of the following: spraying flow and spraying amplitude.

According to the spray head device disclosed by the embodiment of the invention, the switching device controls the liquid to be sprayed from the sub-spray heads with different spraying parameters, so that the spraying mode of changing the spraying flow or spraying amplitude on line is realized, the time for manually changing the spray head is saved, the spray head is prevented from being contacted with the sprayed liquid when a user changes the spray nozzle, the safety and the spraying efficiency are improved, and the user experience is improved.

In one embodiment, under the same hydraulic pressure of the liquid, the spraying flow rate of the first sub-sprayer is greater than that of the second sub-sprayer, namely the first sub-sprayer is a high-flow sprayer, and the second sub-sprayer is a low-flow sprayer; the switching device is respectively communicated with the large-flow spray head and the small-flow spray head, and the switching device can perform corresponding spraying operation according to a preset spraying task, for example, the large-flow spray head and the small-flow spray head are adopted to alternately spray for the same time or different times; the switching device can also perform corresponding spraying operation according to the received control information, if the current spraying operation is performed by adopting a large-flow sprayer, the switching device is switched to a small-flow sprayer to perform spraying after receiving the control information of the switching sprayer.

In one embodiment, under the same hydraulic pressure of the liquid, the spray amplitude of the first sub-spray head is larger than that of the second sub-spray head, namely the first sub-spray head is a large-spray-amplitude spray head, and the second sub-spray head is a small-spray-amplitude spray head; the switching device is respectively communicated with the large-spraying-amplitude nozzle and the small-spraying-amplitude nozzle, and similarly, the switching device can switch to the small-spraying-amplitude nozzle for spraying for a second time after the large-spraying-amplitude nozzle sprays for a first time according to corresponding spraying operation of a preset spraying task; the switching device can also perform corresponding spraying operation according to the received control information, if the small-spraying-amplitude sprayer is adopted for spraying at present, the switching device is switched to the large-spraying-amplitude sprayer for spraying after receiving the control information of the switching sprayer.

It is to be understood that the "first" and "second" of the first sub-sprayer and the second sub-sprayer of the above embodiments are only used to distinguish different sub-sprayers, and are not specific to a certain type of spraying parameter.

It should be noted that, according to the nozzle device provided in the embodiment of the present invention, the number of the sub-nozzles may also be more than two, and may be symmetrically distributed or uniformly distributed, and the sub-nozzles may be arranged according to actual situations and needs, where the number and/or the distribution of the sub-nozzles are not limited.

Alternatively, the type of the first sub-showerhead and the type of the second sub-showerhead may be the same or different.

Optionally, the type of the first sub-showerhead and/or the type of the second sub-showerhead includes at least one of: pressure nozzle, centrifugal nozzle. The pressure spray head is a spray head which applies certain pressure to liquid through a pressure pump and sprays the liquid out through the pressure spray head; the centrifugal nozzle is a nozzle which drives the centrifugal nozzle to rotate at a high speed through a motor to take out liquid and then sprays the liquid by utilizing centrifugal force.

In one embodiment, the first sub-jets are of the same type as the second sub-jets shown, both being pressure jets or centrifugal jets.

In one embodiment, the type of the first sub-sprayer is different from that of the second sub-sprayer, the first sub-sprayer is a pressure sprayer, and the second sub-sprayer is a centrifugal sprayer; or the first sub-sprayer is a centrifugal sprayer and the second sub-sprayer is a pressure sprayer.

In one embodiment, the water inlet nozzle and the nozzle of the first sub-sprinkler and/or the second sub-sprinkler may be coaxially arranged.

In one embodiment, the water inlet nozzle and the nozzle of the first sub-sprinkler head and/or the second sub-sprinkler head may not be coaxially arranged, for example, the nozzle may be arranged at a side position of the sub-sprinkler head, and the axes of the water inlet nozzle and the nozzle are at an angle, such as [0, 180] degrees, with respect to each other.

Alternatively, the switching device may be an electric valve device.

In one embodiment, referring to fig. 2, fig. 2 shows an example of an electric valve device according to an embodiment of the present invention. As shown in fig. 2, the electric valve device 200 includes: a first inlet 210, a first outlet 220, a second outlet 230, and an electromagnetic switch 240, wherein the first inlet 210 is located at one side of the electromagnetic switch 240, the first outlet 220 and the second outlet 230 are located at the other side of the electromagnetic switch 240, and the electromagnetic switch 240 controls the liquid flowing into the first inlet 210 to flow out of the first outlet 220 or the second outlet 230.

In one embodiment, with continued reference to fig. 2, the electromagnetic switch 240 includes: a valve body 241, a valve spool 242, an elastic member 243, and an electromagnet 244, wherein the valve body 241 has a first passage for allowing the liquid flowing into the first inlet 210 to flow out from the first outlet 220, and a second passage for allowing the liquid flowing into the first inlet 210 to flow out from the second outlet 230; the valve spool 242 is accommodated in the valve body 241, and is disposed non-parallel to both the first passage and the second passage; the elastic member 243 is accommodated in the valve body 241 and is used for resetting the valve element 242; the electromagnet 244 is fixed on the valve body 241, at least a part of the electromagnet 244 is accommodated in the valve body 241, and a coil is wound on the electromagnet 244; the elastic member 243 is fixed to at least a portion of the electromagnet 244 and is located between the electromagnet 244 and the valve body 242. In the embodiment shown in fig. 2, the elastic member 243 is a compression spring. Alternatively, in other embodiments, the elastic member 243 may also be a metal spring, a rubber elastic member, or the like.

Optionally, the spray head device further comprises: and the control device is connected with the coil and used for controlling the coil to be electrified or deenergized.

Optionally, when the coil is powered, the electromagnet controls the valve core to move to open the first channel; when the coil is powered off, the electromagnet controls the valve core to move so as to open the second channel.

In one embodiment, when power is supplied to the electromagnetic valve, current flows through a coil on the electromagnet, the coil and the electromagnet generate corresponding magnetic fields, the valve core is attracted, a first channel for liquid to pass through is closed, a second channel is opened, and the liquid flows in from the first inlet, passes through the second channel and is sprayed out from the second outlet; when the power supply is not provided for the electromagnetic valve, no current flows through the coil on the electromagnet, the coil and the electromagnet do not generate a magnetic field, the elastic element resets the valve core, the first channel for liquid to pass through is opened, the second channel is closed, and the liquid flows in from the first inlet and is sprayed out from the first outlet after passing through the first channel. By adjusting the current and/or the polarity on the coil, the first channel or the second channel of the electromagnetic valve can be controlled to be opened or closed, and then the liquid can be controlled to be selectively sprayed out from the first sub-sprayer or the second sub-sprayer, so that the flow rate and/or the spray amplitude of the spraying can be changed on line.

The electromagnetic switch is a controllable device, and different control modes can be adopted, namely the type of the electromagnetic switch can be selected and/or the control mode of the electromagnetic switch can be set according to requirements, so that the purpose of differently opening and/or closing the first outlet and/or the second outlet can be achieved by controlling the energization parameters (such as the current magnitude, the current polarity and the like) of the electromagnetic switch.

In one embodiment, when a first current is provided for the electromagnetic valve device, the first current flows through a coil on an electromagnet, the coil and the electromagnet generate a corresponding first magnetic field, the valve core is attracted to a first position, a first channel for liquid to pass through is closed, a second channel is opened, and the liquid flows in from a first inlet, passes through the second channel and then is sprayed out from a second outlet; when a second current is supplied to the electromagnetic valve device, the direction of the second current is opposite to that of the first current, the second current flows through a coil on the electromagnet, the coil and the electromagnet generate a corresponding second magnetic field, the direction of the second magnetic field is opposite to that of the first magnetic field, the valve core is pushed away to a second position, a first channel for liquid to pass through is opened, the second channel is closed, and the liquid flows in from the first inlet and is sprayed out from the first outlet after passing through the first channel; when current is not supplied to the electromagnetic valve device, no current flows through the coil on the electromagnet, the coil and the electromagnet do not generate a magnetic field, the elastic piece resets the valve core, the first channel and the second channel are closed, and no liquid passes through the first outlet and the second outlet, namely no liquid is sprayed out.

In one embodiment, the opening and/or closing of at least part of the first channel and/or at least part of the second channel can be realized by applying currents with different magnitudes to the electromagnetic switch to pull the magnetic core to different positions, for example, the first channel and the second channel are opened at least partially at the same time to realize spraying modes with more different spraying parameters.

In one embodiment, the first passage and the second passage may be opened simultaneously, that is, the first outlet and the second outlet are opened simultaneously, so as to achieve a maximum spraying flow rate and/or a maximum spraying width spraying mode for the first sub-sprayer and the second sub-sprayer to spray simultaneously.

It should be noted that, the current of the electromagnetic switch and/or the energization parameters such as the energization time can be set or changed according to the on-line or off-line (i.e. during spraying or during non-spraying), and the specific current and/or the energization time are not limited herein.

Optionally, the spray head device further comprises: and the connecting device comprises a first connecting device and a second connecting device, the first connecting device is connected with the first outlet and the first sub-sprayer, and the second connecting device is connected with the second outlet and the second sub-sprayer.

The electromagnetic valve device, the first sub-sprayer and the second sub-sprayer can be respectively and directly connected (namely, a connecting device is not needed), and can also be connected through the connecting device. It can be understood that the length or the connection mode of the connection device can be set according to the requirement, and the connection device can be a hard material or a flexible material, and the length and the material of the connection device are not limited.

In one embodiment, the connection means is a flexible hose or a PVC pipe.

In one embodiment, referring to fig. 1, the connection device 140 includes a first connection device 141 and a second connection device 142, both of which are rigid material pipes, one end of each of the first connection device 141 and the second connection device 142 is connected to the switching device 130, the first connection device 141 and the second connection device 142 are at an angle with each other, and the other end is connected to the first sub-nozzle 110 and the second sub-nozzle 120, respectively. It is understood that the range of the included angle can be set according to actual needs, and is not limited herein.

Optionally, the spray head device further comprises: and the supporting device is used for supporting the connecting device.

In one embodiment, the support means is of a rigid material.

In one embodiment, referring to fig. 1, the supporting device is a supporting frame 150, and the supporting frame 150 includes two sub-supporting legs matching with the shapes of the first connecting device 141 and the second connecting device 142, respectively, and the two sub-supporting legs are clamped at two ends of the first connecting device 141 and the second connecting device 142, respectively. In addition, one end of the supporting frame 150 may be connected to the switching device 130 or other parts of the nozzle device, and the other end is connected to the connecting device in a clamping manner.

Referring again to fig. 1, the operation of a spray head device according to an embodiment of the present invention will be described with specific examples. The head apparatus 100 in fig. 1 includes:

a first sub-nozzle 110 including a first water inlet nozzle through which liquid can enter and be ejected therethrough and a first nozzle; the first sub-sprayer can be a pressure sprayer or a centrifugal sprayer;

a second sub-nozzle 120 including a second water inlet nozzle and a second nozzle, through which the liquid can enter; the type of the second sub-sprayer can be a pressure sprayer or a centrifugal sprayer; the type of the first sub-sprayer and the type of the second sub-sprayer can be the same or different;

wherein, under the same hydraulic pressure of the liquid, the spraying parameters of the first sub-sprayer 110 are different from the spraying parameters of the second sub-sprayer 120, and the spraying parameters include at least one of the following: spraying flow and spraying amplitude;

a switching device 130 including an electric valve device, which is respectively communicated with the first inlet nozzle and the second inlet nozzle, wherein the switching device 130 controls the liquid to selectively flow in from the first inlet nozzle or the second inlet nozzle, so as to control the liquid to be sprayed through the first sub-nozzle 110 or the second sub-nozzle 120;

wherein, the electrically operated valve device includes: the liquid level control device comprises a first inlet, a first outlet, a second outlet and an electromagnetic switch, wherein the first inlet is positioned on one side of the electromagnetic switch, the first outlet and the second outlet are positioned on the other side of the electromagnetic switch, and the electromagnetic switch controls liquid flowing into the first inlet to flow out of the first outlet or the second outlet; the electromagnetic switch includes: a valve body having a first passage for liquid flowing into the first inlet to flow out of the first outlet and a second passage for liquid flowing into the first inlet to flow out of the second outlet; the valve core is accommodated in the valve body and is arranged in a non-parallel way with the first channel and the second channel; the elastic piece is accommodated in the valve body and used for resetting the valve core; the electromagnet is fixed on the valve body, at least one part of the electromagnet is accommodated in the valve body, and a coil is wound on the electromagnet; the spring is fixed on at least one part of the electromagnet and is positioned between the electromagnet and the valve core;

a control device (not shown) connected to the coil for controlling the coil to be energized or de-energized; when the coil is electrified, the electromagnet controls the valve core to move so as to open the first channel; when the coil is powered off, the electromagnet controls the valve core to move so as to open a second channel;

a connection device 140 including a first connection device connecting the first outlet and the first sub-nozzle, and a second connection device connecting the second outlet and the second sub-nozzle;

a supporting means 150 for supporting the connecting means 140;

based on the structure of the nozzle device 100, when the nozzle device 100 performs a spraying operation, liquid flows to the first inlet of the electromagnetic switch in the switching device 130, when the control device controls the coil of the electromagnetic switch to be electrified, the valve core of the electromagnetic switch is attracted, the first channel for the liquid to pass through is closed, the second channel is opened, and the liquid flows in from the first inlet and flows out from the second outlet after passing through the second channel; the liquid flowing out of the second outlet flows to a second water inlet nozzle of the second sub-sprayer through a second connecting device and is sprayed out through the second nozzle; when the control device controls the coil of the electromagnetic switch to lose power, the elastic piece resets the valve core, the first channel for liquid to pass through is opened, the second channel is closed, and the liquid flows in from the first inlet and flows out from the first outlet after passing through the first channel; and the liquid flowing out from the first outlet flows to the first water inlet nozzle of the first sub-sprayer through the first connecting device and is sprayed out through the first nozzle.

Therefore, the spray head device of the embodiment of the invention controls the liquid to be sprayed out by the spray head devices with different spraying parameters through the switching device, realizes the change of flow and spray amplitude in the spraying process, saves the time for manually replacing the spray nozzle, improves the spraying efficiency, improves the safety and improves the user experience.

It should be noted that, according to the embodiments of the present invention, specific implementation manners of the same function may be substituted for each other. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive.

According to a second aspect of the embodiments of the present invention, there is provided a spraying system, referring to fig. 3, fig. 3 shows a schematic view of a spraying system of an embodiment of the present invention, wherein the spraying system 300 comprises at least one spray head device 310, at least one connecting pipe 320; and a pressure device 330.

The specific structure of the nozzle device 310 may adopt the structure of the nozzle device of each of the above embodiments, and the pressure device 330 is used for providing pressure to the liquid so that the liquid is ejected from the nozzle device 310 through the connecting pipe 320.

Optionally, the spray system further comprises:

the controller is electrically connected with the switching device and is used for controlling the switching device to be in a first state or a second state, and in the first state, the switching device controls the liquid to flow in from the first inlet nozzle so as to control the liquid to be sprayed through the first sub-spray head; in the second state, the switching device controls the liquid to flow in from the second inlet nozzle, so that the liquid is sprayed through the second sub-spray head.

Optionally, the controller automatically controls the switching device according to a preset spraying task, so as to perform spraying operation according to the preset spraying task.

In one embodiment, the controller may comprise a processor for controlling the switching means in accordance with the preset spraying task.

In one embodiment, the controller may further include a memory for storing the preset spraying tasks. It will be appreciated that the preset spraying tasks may be set as desired.

Optionally, the spray system further comprises: and the wireless communication device is electrically connected with the controller and is used for receiving a spray head control instruction of a user and sending the spray head control instruction to the controller so as to control the switching device. It is to be understood that the wireless communication device may be provided independently or in the controller.

In one embodiment, the wireless communication device may also receive the preset spraying tasks and store the spraying tasks in the memory. For example, the preset spraying task can be received before the spraying operation is executed, and can also be received in the spraying operation process, so that the spraying mode with variable online spraying flow or spraying amplitude can be realized, the spraying mode or the spraying task can be changed online, and a user can set according to personal needs, thereby not only improving the spraying efficiency, but also providing more flexibility and further improving the user experience.

Optionally, the spray system further comprises: and the ground control end is used for being in communication connection with the wireless communication device, and a user can send the spray head control instruction through the ground control end.

Optionally, the wireless communication device can be in communication connection with the ground control terminal. Specifically, the communication mode of the wireless communication device and the ground control terminal may be a line-of-sight communication mode or a non-line-of-sight communication mode. The line-of-sight communication mode can be WIFI, Bluetooth and the like. The non-line-of-sight communication method can be a communication network such as 2G, 3G, 4G, 5G and the like.

And sending a spray head control instruction through the ground control end, and controlling the switching device by the spray head device according to the spray head control instruction.

In one embodiment, referring to fig. 4, fig. 4 illustrates an example of a sprinkler system according to an embodiment of the present invention. As shown in fig. 4, a nozzle device, a controller, a wireless communication device, a pressure device, and a liquid storage device (e.g., a water tank) are mounted on the movable platform body, the nozzle device includes an electromagnetic valve and a nozzle body, water in the water tank flows to the electromagnetic valve through the pressure device via a connection pipe, and the control device controls the electromagnetic valve to open and/or close the first sub-nozzle body and/or the second sub-nozzle body. In addition, a user sends the spray head control instruction to the wireless communication device through the ground control end, the wireless communication device sends the spray head control instruction to the control device, and the control device controls the switching device according to the spray head control instruction, so that the first sub-spray head body and/or the second sub-spray head body are controlled to spray.

In one embodiment, the ground control terminal may further send the preset spraying task.

In one embodiment, the showerhead control instructions include at least one of: and opening the first sub-sprayer and/or opening the second sub-sprayer, closing the first sub-sprayer and/or closing the second sub-sprayer, and switching to the first sub-sprayer and/or switching to the second sub-sprayer.

In one embodiment, the spraying system starts to perform the spraying operation, a user can set a preset spraying task or a spraying head control instruction according to an actual spraying environment and send the preset spraying task or the spraying head control instruction to the wireless communication device through the ground control terminal, the wireless communication device sends the preset spraying task or the spraying head control instruction to the controller, and the controller controls the switching device according to the preset spraying task or the spraying head control instruction so as to spray liquid through the first sub-spraying head and/or the second sub-spraying head according to the preset spraying task or the spraying head control instruction.

Optionally, the ground control terminal includes at least one of: remote controller, cell-phone, panel computer, ground base station.

a movable platform body and a spray head device.

The spray head device is carried on the movable platform body; the specific structure of the nozzle device may adopt the structure of the nozzle device of each of the above embodiments.

Additionally, there is provided a movable platform comprising: movable platform body and sprinkler system.

The spraying system is carried on the movable platform body; the specific structure of the spraying system can be the spraying system of each embodiment.

Optionally, the movable platform comprises an unmanned aerial vehicle, or a ground vehicle. The ground vehicle can be a ground robot, an agricultural machine, and the like.

In one embodiment, the movable platform is an unmanned aerial vehicle, and the movable platform body includes a central body and a plurality of horn arms, and the horn arms are fixedly or rotatably connected with the central body.

Further, the movable platform body further comprises a landing gear. The water box may be attached to the central body or to the landing gear. The spray head device may be attached to the horn or the central body.

The spray head device and/or the spraying system according to the invention can be used for automatic spraying. In one embodiment, the spray head device and/or the spray device of the embodiment of the invention can be applied to a mobile platform, and the spray head device and/or the spray device can be installed on a platform body of the mobile platform. The mobile platform with the sprayer device and/or the spraying device can spray the external environment, for example, plant irrigation or liquid medicine spraying in agriculture, forestry and the like. In certain embodiments, the mobile platform comprises at least one of an unmanned aerial vehicle, a ground vehicle. When the sprayer device and/or the sprinkling device are/is applied to the unmanned aerial vehicle, the platform body is a fuselage of the unmanned aerial vehicle. When the sprinkler head device and/or the sprinkler device is applied to an automobile, the platform body is the automobile body. The vehicle may be an autonomous vehicle or a semi-autonomous vehicle, without limitation. When the sprayer device and/or the spraying device are/is applied to the remote control vehicle, the platform body is the vehicle body of the remote control vehicle. When the spray head device and/or the spraying device is applied to a robot, the platform body is the robot.

receiving a spray head control instruction;

Alternatively, the specific structure of the ejection head device may adopt the structure of the ejection head device of each of the above embodiments.

Alternatively, the specific structure of the switching device may adopt the structure of the switching device of each of the above embodiments.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Technical terms used in the embodiments of the present invention are only used for illustrating specific embodiments and are not intended to limit the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the use of "including" and/or "comprising" in the specification is intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, and/or components.

The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below, if any, are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Various modifications and alterations to this invention will become apparent to those skilled in the art without departing from the scope and spirit of this invention. The embodiments described herein are further intended to explain the principles of the invention and its practical application and to enable others skilled in the art to understand the invention.

The flow chart described in the present invention is only an example, and various modifications can be made to the diagram or the steps in the present invention without departing from the spirit of the present invention. For instance, the steps may be performed in a differing order, or steps may be added, deleted or modified. It will be understood by those skilled in the art that all or a portion of the above-described embodiments may be practiced and equivalents thereof may be resorted to as falling within the scope of the invention as claimed.

Claims

1. A spray head apparatus, the spray head comprising:

a switching device respectively communicated with the first inlet nozzle and the second inlet nozzle, wherein the switching device controls liquid to selectively flow in from the first inlet nozzle or the second inlet nozzle so as to control the liquid to be sprayed through the first sub-sprayer or the second sub-sprayer;

wherein, under the condition of the same hydraulic pressure of the liquid, the spraying parameters of the first sub-sprayer are different from the spraying parameters of the second sub-sprayer, and the spraying parameters comprise at least one of the following parameters: spraying flow and spraying amplitude.

2. The head apparatus of claim 1, wherein the first sub-head is the same type as or different from the second sub-head.

3. The spray head apparatus of claim 2, wherein the type of the first sub-spray head comprises at least one of: pressure nozzle, centrifugal nozzle.

4. The spray head apparatus of claim 2, wherein the type of the second sub-spray head comprises at least one of: pressure nozzle, centrifugal nozzle.

5. The spray head device of claim 1 wherein said switching means is an electrically operated valve means.

6. The spray head apparatus of claim 5, wherein said electric valve means comprises: the liquid outlet device comprises a first inlet, a first outlet, a second outlet and an electromagnetic switch, wherein the first inlet is positioned on one side of the electromagnetic switch, the first outlet and the second outlet are positioned on the other side of the electromagnetic switch, and the electromagnetic switch controls liquid flowing into the first inlet to flow out of the first outlet or the second outlet.

7. The spray head apparatus of claim 6, wherein the electromagnetic switch comprises:

a valve body having a first passage for liquid flowing into the first inlet to flow out of the first outlet and a second passage for liquid flowing into the first inlet to flow out of the second outlet;

the valve core is accommodated in the valve body and is arranged in a non-parallel way with the first channel and the second channel;

the elastic piece is accommodated in the valve body and used for resetting the valve core;

the electromagnet is fixed on the valve body, at least one part of the electromagnet is accommodated in the valve body, and a coil is wound on the electromagnet; the elastic piece is fixed on at least one part of the electromagnet and is positioned between the electromagnet and the valve core.

8. The spray head device of claim 7, wherein when the coil is energized, the solenoid controls movement of the valve element to open the first passage; when the coil is powered off, the electromagnet controls the valve core to move so as to open the second channel.

9. The spray head apparatus of claim 1, further comprising:

and the connecting device comprises a first connecting device and a second connecting device, the first connecting device is connected with the first outlet and the first sub-sprayer, and the second connecting device is connected with the second outlet and the second sub-sprayer.

10. The spray head apparatus of claim 9, further comprising:

and the supporting device is used for supporting the connecting device.

11. The spray head apparatus of claim 7, further comprising:

and the control device is electrically connected with the coil and used for controlling the coil to be electrified or deenergized.

12. A spraying system, characterized in that the spraying system comprises:

at least one spray head apparatus as claimed in any one of claims 1 to 11;

at least one connecting pipe; and

13. The sprinkler system of claim 12 wherein the switching means is an electrically operated valve means.

14. The spray system of claim 12, further comprising:

15. The spray system of claim 14, further comprising: and the wireless communication device is electrically connected with the controller and is used for receiving a spray head control instruction of a user and sending the spray head control instruction to the controller so as to control the switching device.

16. The spray system of claim 15, further comprising: and the ground control end is used for being in communication connection with the wireless communication device, and a user can send the spray head control instruction through the ground control end.

17. The spraying system of claim 16, wherein the ground control end comprises at least one of: remote controller, cell-phone, panel computer, ground base station.

18. The spraying system of claim 14 wherein said controller automatically controls said switching means to perform spraying operations according to a preset spraying task based on the preset spraying task.

19. A movable platform, comprising:

a movable platform body;

at least one spray head device according to any one of claims 1 to 11 mounted on the movable platform body; and/or at least one sprinkling system according to claim 12-18, at least partially carried on the movable platform body.

20. The movable platform of claim 19, wherein the movable platform comprises an unmanned aerial vehicle or a ground vehicle.

21. A flight spraying operation method of an agricultural plant protection machine is characterized by comprising the following steps:

receiving a spray head control instruction;