WO2021035745A1

WO2021035745A1 - Spraying system and agricultural plant protection unmanned aerial vehicle

Info

Publication number: WO2021035745A1
Application number: PCT/CN2019/103868
Authority: WO
Inventors: 舒展; 卢绰莹
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2021-03-04
Also published as: CN112218796A

Abstract

A spraying system (100) and an agricultural plant protection unmanned aerial vehicle. The spraying system comprises: a water tank (10), wherein a water divider (40) is connected to the water tank (10) and is in communication with the water tank (10); an installation frame (20) provided with a plurality of first connection portions; and a pump group (30) comprising a plurality of water pumps (31), wherein each of the water pumps (31) respectively communicates with a corresponding water outlet on the water divider (40) and is provided with a second connection portion, a first connection portion match the second connection portion such that each of the water pumps (31) is mounted on the installation frame (20), and each of the water pumps (31), via the first connection portion and the second connection portion, is connected to the installation frame (20) in a quick-release manner.

Description

Spraying system and agricultural plant protection machine

Technical field

The embodiment of the present invention relates to the technical field of agricultural plant protection spraying, in particular to a spraying system and an agricultural plant protection machine.

Background technique

In the spraying application fields of agricultural plant protection machines such as agricultural drones, pesticide spraying vehicles, and human spraying devices, efficiency has always been a concern. In addition to the spraying efficiency during the spraying process, once a failure occurs during the spraying process, the speed of repair or replacement of the spraying system will also affect the efficiency, delaying valuable farming time, and in severe cases, it may miss the best time for spraying, resulting in irreversible Economic loss.

The spraying system of the plant protection drone in the prior art is not easy to disassemble. Usually in the field operation, the spraying system occasionally breaks down, which is very inconvenient to maintain. The pump group of the spraying system usually consists of multiple pumps, and multiple pumps form one. The fixed pump set is installed on the body as a whole.

The disassembly between multiple pumps is inconvenient. As a result, once one of the pumps fails, the entire pump set needs to be removed from the body. Due to the heavy weight of the entire pump set, the operation is inconvenient, and, due to the entire pump set All are removed, and the spraying system can only work after the current faulty pump is resolved, which will seriously affect the spraying efficiency.

Summary of the invention

The embodiment of the present invention provides a spraying system and an agricultural plant protection machine to facilitate assembly and maintenance, save maintenance time, and further improve spraying efficiency.

The spraying system provided by the first aspect of the present invention includes a water tank, wherein a water divider is connected to the water tank, and the water divider is in communication with the water tank;

A mounting frame, which is provided with a plurality of first connecting parts;

The pump set includes a plurality of water pumps, each of which is respectively connected with a corresponding water outlet on the water separator, and each of the water pumps is provided with a second connecting portion, and the first connecting portion is matched with the second connecting portion So that each of the water pumps is hung on the mounting frame, and the water pump is quickly connected to the mounting frame through the first connecting portion and the second connecting portion.

The second aspect of the present invention provides an agricultural plant protection machine, including a frame, a spray head, and a spray system, wherein the spray system includes:

A water tank, a water separator is connected to the water tank, and the water separator is in communication with the water tank;

A mounting frame, which is provided with a plurality of first connecting parts;

Based on the above, in the spraying system and agricultural plant protection machine provided by the present invention, each pump in the pump set is hung on the mounting frame by quick disassembly. In this way, when a pump fails, only the failed pump is required. It can be removed for repair or replacement without removing the entire pump set. It is easy to operate, and during the period of removing the faulty pump for maintenance, other normal pumps can still continue to work, which can ensure the spraying efficiency to a certain extent.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

Figure 1 is a front view of an installation state of a spray system and a rack provided by an embodiment of the present invention;

Figure 2 is a cross-sectional view of Figure 1;

Figure 3 is a three-dimensional view of a spray system and a frame provided by an embodiment of the present invention;

Figure 4 is a schematic diagram 1 of the installation of the pump set and the mounting frame of the spray system provided by the embodiment of the present invention;

Figure 5 is a second schematic diagram of the installation of the pump set and the mounting frame of the spray system provided by the embodiment of the present invention;

Figure 6 is a third schematic diagram of the installation of the pump set and the mounting frame of the spray system provided by the embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a water tank of a spray system provided by an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a flow meter of a spray system provided by an embodiment of the present invention;

9 is a schematic structural diagram of a spray head of a spray system provided by an embodiment of the present invention;

Fig. 10 is a schematic structural diagram of the one-way valve at the water outlet of the water tank of the sprinkler system provided by the embodiment of the present invention.

detailed description

The following clearly describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

The "including" mentioned in the entire specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within the acceptable error range, those skilled in the art can solve the technical problem within a certain error range, and basically achieve the technical effect.

In addition, the term "connected" herein includes any direct and indirect means of connection. Therefore, if it is described that a first device is connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices.

It should be understood that the term "and/or, and/or" used in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A1 and/or B1 can mean that A1 exists alone, There are three cases of A1 and B1 at the same time, and B1 alone. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the case of no contradiction, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification.

Example one

Fig. 1 is a front view of the installation state of the spray system and the frame provided by an embodiment of the present invention; Fig. 2 is a cross-sectional view of Fig. 1; Fig. 3 is a three-dimensional view of the spray system and the frame provided by an embodiment of the present invention; Installation schematic diagram 1 of the pump set and mounting frame of the spraying system provided by the embodiment of the present invention; Figure 5 is schematic diagram 2 of the installation of the pump set and mounting frame of the spraying system provided by the embodiment of the present invention; Figure 6 is provided by the embodiment of the present invention The installation diagram of the pump unit and the mounting frame of the spray system III. Please refer to FIGS. 1 to 6, the spraying system 100 provided in this embodiment includes: a water tank 10, a mounting frame 20, and a pump set 30.

Wherein, a water divider 40 is connected to the water tank 10, and the water divider 40 is in communication with the water tank 10. The pump set 30 includes a plurality of water pumps 31, and each water pump 31 is respectively connected with a corresponding water outlet on the water separator 40.

Specifically, the water tank 10 may be used to contain the liquid to be sprayed, and the liquid to be sprayed may include a chemical liquid mixed with pesticides, clean water, etc., which is not limited in this embodiment. Fig. 7 is a schematic structural diagram of a water tank of a spray system provided by an embodiment of the present invention. As shown in Figure 7, further, the water tank 10 may be provided with a scale line 11, and the scale line may be made of a transparent piece, or, the place where the scale is arranged may be a transparent shell as a whole, and the scale line may be made of ink, protrusions, etc. The recesses are arranged on the transparent shell in any manner so as to facilitate the user to observe the amount of liquid inside the water tank 10 outside the water tank 10.

The water separator 40 may include a liquid inlet pipe 41 and a plurality of liquid outlet pipes 42. The water separator 40 communicates with the water tank 10 through the liquid inlet pipe 41, and the water outlet of each liquid outlet pipe 42 is respectively communicated with the corresponding water pump 31, Extend the single-channel pipeline to multiple channels. Taking FIG. 4 as an example, the pump set 30 may include four water pumps 31, and a liquid outlet pipe 42 may be connected to the bottom of each pump 31. One end of the liquid inlet pipe 41 of the water separator 40 is connected to the water tank 10, and the liquid inlet pipe 41 The other end is connected with four liquid outlet pipes 42. The top of the water pump 31 can be connected to the spray head 50 through the spray head connecting the water pipe 501. During operation, the water pump 31 is activated to provide greater negative pressure suction, so as to pass the liquid in the water tank 10 through the inlet pipe 41 and the four outlet pipes 42 respectively. The pump sprays into the water pump and from the spray head of the spray head 50 through the water pipe. It should be noted that in this embodiment, the number of water pumps 31 and liquid outlet pipes 42 is only an example, and those skilled in the art can design other numbers of water pumps 31 and liquid outlet pipes 42 according to actual conditions.

A threaded extrusion joint can be used between the liquid inlet pipe 41 of the water separator 40 and the water tank 10 to realize quick disassembly, and a threaded squeeze joint can also be adopted between the liquid outlet pipe 41 of the water divider 40 and each water pump 31 to realize quick disassembly. , It is connected by threaded extrusion joint, which is convenient for assembly and disassembly, and the sealing is reliable.

In this embodiment, since the spray head 50 sprays liquid downward, the water pipe connecting the spray head 50 needs to be bent downward. The outlet pipe 42 of the water separator 40 is set at the bottom of the water pump 31, and the water pipe connecting the spray head 50 is set at the top of the water pump 31. In this way, the water pipe connecting the spray head 50 can be arranged at approximately the same height as the water tank 10. Will not increase the vertical height too much, effectively save the layout space, and facilitate the pipeline layout.

The mounting frame 20 is provided with a plurality of first connection parts, each water pump 31 is provided with a second connection part, the first connection part and the second connection part cooperate to hang each water pump 31 on the mounting frame 20, and The water pump 31 is quickly disconnected and connected to the mounting frame 20 through the first connecting portion and the second connecting portion 31.

Specifically, the mounting frame 20 may include a first mounting frame 20a for connecting to an external device, and a second mounting frame 20b for suspending the water pump 31. The material of the first mounting frame 20a and/or the second mounting frame is carbon fiber. Among them, the external equipment may refer to the frame 200 of the agricultural plant protection machine, and the agricultural plant protection machine may specifically refer to an agricultural drone, a pesticide spraying vehicle, a human spraying device, and so on. In other words, the first mounting frame 20a and the second mounting frame 20b may both be made of carbon fiber material, or one of the two may be made of carbon fiber material. Carbon fiber has the advantages of high strength and light weight, which can not only provide reliable installation for the water pump 31, but also meet the requirements of light weight.

The first mounting frame 20a and the second mounting frame 20b may be integrally formed or assembled separately. When the first mounting frame 20a and the second mounting frame 20b are assembled separately, the first mounting frame 20a and the second mounting frame 20b can be connected by bolts, screws, buckles, etc., or welded and assembled. It is not limited in this embodiment, and can be specifically selected according to actual needs.

The first mounting bracket 20a may include two, and the two first mounting brackets 20a may be symmetrically arranged at both ends of the second mounting bracket 20b, and each water pump 31 is located between the two first mounting brackets 20a. A plurality of water pumps 31 can be lined up on the second mounting frame 20b, and the distance between every two water pumps 31 can be equal, so as to keep the system balance as much as possible.

The second mounting frame 20b can be in the shape of a plate. Due to the larger volume of the water pump 31, the second mounting frame 20b is in the shape of a plate, so that the thickness of the first mounting frame 20a can be reduced as much as possible, thereby reducing the overall arrangement thickness of the pump set 30. In order to save space, and the second mounting frame 20b can be arranged as close to the water tank 10 as possible, which can make the structure more compact and the space utilization rate is good.

The second mounting frame 20b can be provided with one or more weight-reducing holes 201b, and the multiple weight-reducing holes 201b can be evenly arranged to make the structure of the second mounting frame 20b symmetrical, which helps to ensure the balance of the entire pump set 30 after installation Sex.

The thickness of the first mounting frame 20a may be greater than the thickness of the second mounting frame 20b. The first mounting frame 20a may be a skeleton-shaped frame. Specifically, one surface of the first mounting frame 20a may be recessed toward the other surface to form a recess. In the groove, a plurality of reinforcing ribs p may be provided in the groove, and each reinforcing rib p may be formed in a different shape, for example, a circle, a triangle, a rectangle, and the like. The skeleton-shaped first mounting frame 20a can effectively ensure the strength requirement, and at the same time, the weight is lighter, which meets the lightweight requirement.

Further, the first mounting frame 20a may be detachably connected to an external device (for example, the frame 200 of an agricultural plant protection machine). The connection between the first mounting frame 20a and the frame 200 may be bolts, screws, buckles, and the like. Thus, the water pump 31 is mounted on the second mounting frame 20b, the second mounting frame 20b and the water pumps 31 are detachably mounted on external equipment through the first mounting frame 20a, and the water pumps 31 are hung up by means of quick disassembly. On the second mounting frame 20b, each water pump 31 can also be detached separately from the second mounting frame 20b, or the pump set 30 composed of the water pumps 31 can also be detached from the external equipment as a whole together with the mounting frame 20 for use It can be handled flexibly according to actual needs. The water pump 31 can be disassembled separately, or the pump set 30 can be disassembled as a whole, which facilitates the assembly and maintenance of the spray system and saves maintenance time. It can disassemble a water pump separately or by unscrewing it. The whole pump set can be adapted to different assembly and disassembly requirements.

Furthermore, the top of the first mounting frame 20a may be formed with a support frame 201a, and the support frame 201a may include a vertical portion 2011a, a lateral portion 2012a, and an oblique portion 2013a connected between the vertical portion 2011a and the lateral portion 2012a. . The vertical portion 2011a is connected to the top of the first mounting frame 20a (removable or non-detachable connection is acceptable), and extends in a direction away from the water pump 31. The lateral portion 2012a is located above the water pump 31, is perpendicular to the vertical portion 2011a, and extends along the side where the water pump 31 is located. The oblique portion 2013a is connected between the vertical portion 2011a and the lateral portion 2012a, so that the vertical portion 2011a, the lateral portion 2012a, and the oblique portion 2013a form a triangular frame. The first mounting frame 20a is specifically connected to the vertical portion 2011a through the support frame 201a. The rack 200 of the external device is connected. Specifically, connecting points are set at the two vertices of the support frame 201a to connect to the rack 200. The triangle is a stable geometric structure, thereby effectively ensuring the connection stability of the system.

In the spraying system provided in this embodiment, since each pump in the pump set is hung on the mounting frame by quick disassembly, in this way, when a pump fails, only the failed pump needs to be removed for repair or replacement That is, it is not necessary to remove the entire pump set, which is easy to operate, and during the period of removing the faulty water pump for maintenance, other normal water pumps can still continue to work, which can ensure the spraying efficiency to a certain extent.

Among them, the terms "upper", "lower", etc., are used to describe the relative positional relationship of the various structures in the drawings, which are only for ease of description and are not used to limit the scope of the embodiments of the present invention. The change or adjustment of the relationship shall also be regarded as the scope of the implementation of the present invention without substantively changing the technical content.

Example two

On the basis of the first embodiment, this embodiment further provides a specific installation method of the water pump 31. As shown in FIG. 4, the first connecting portion may be a clamping hole 21, and the second connecting portion may be a clamping hole. 21 mating card holder 311.

Specifically, the clamping hole 21 may be formed on the second mounting frame 20b, and the way of forming the clamping hole 21 may specifically be to form a hole 21 on the second mounting frame 20b, or it may be formed on the second mounting frame 20b. It is formed during integral molding. For example, the second mounting frame 20b is integrated by injection molding. When designing the injection mold, a protrusion is provided at the position where the card hole 21 needs to be molded. During the injection molding process, the injection material flows to the mold, and the protrusion blocks the injection molding. The material is injected to form the corresponding card hole 21. Of course, the molding method of the card hole 21 can also be achieved by other achievable process methods. Here, this embodiment does not give examples one by one.

The retaining member 311 can be detachably or non-detachably connected to the water pump 31. For example, the retaining member 311 can be connected to the water pump 31 in any manner such as welding, screwing, riveting, or the like. Alternatively, the retaining member 311 can also be connected to the water pump 31. One piece. In addition, the retaining member 311 may be a protrusion formed on the water pump 31, wherein the specific shape of the protrusion includes at least one of the following: a protrusion, a hook, and a protrusion.

When the retaining member 311 on the water pump 31 extends into the retaining hole on the second mounting frame 20b, the water pump falls due to the action of gravity, and the retaining member 311 on the water pump 31 will resist against the retaining member 311 on the second mounting frame 20b. At the bottom of the locking hole 21, the water pump 31 is hung on the second mounting frame 20b, that is, the water pump 31 is hung on the mounting frame 20. When a single water pump 31 needs to be taken out from the mounting frame 20, it is only necessary to lift the water pump 31 slightly, and then take out the water pump 31 in a direction away from the clamping hole 21, which is convenient for operation.

In other embodiments, the first connecting portion may also be the clamping member 311, and the second connecting portion may be the clamping hole 21 that cooperates with the clamping member 311. Wherein, the specific forming mode and arrangement mode of the clamping member 311 and the clamping hole 21 can be the same as the above-mentioned embodiment, and will not be repeated here. It should be noted that when the first connecting part on the mounting frame 20 is the clamping piece 311 and the second connecting part on the water pump 31 is the clamping hole 21, when the clamping piece 311 on the second mounting frame 20b extends into the water pump After the water pump 31 is in the hole 21 on the 31, the water pump 31 falls due to the action of gravity, and the top of the hole 21 on the water pump 31 will resist against the clamping member 311 on the second mounting frame 20b, and then the water pump 31 is hung on On the second mounting frame 20b, that is, the water pump 31 is hung on the mounting frame 20. When a single water pump 31 needs to be taken out from the mounting frame 20, it is only necessary to lift the water pump 31 slightly, and then take out the water pump 31 in a direction away from the holding member 311, which is convenient for operation.

Example three

This embodiment is on the basis of the second embodiment, and further, as shown in FIGS. 4 and 6, the clamping hole 21 may include a large hole portion 211 and a small hole portion 212 communicating with each other, and the large hole portion 211 is used for clamping The member 311 extends in, and the small hole portion 212 is used for the clamping member 311 to be mounted. It can be understood that when the clamping hole 21 is formed on the second mounting frame 20 b and the clamping member 311 is formed on the water pump 31, the large hole portion 211 may be located above the small hole portion 212. When the clamping hole 21 is formed on the water pump 31 and the clamping member 311 is formed on the second mounting frame 20b, the small hole portion 212 is located above the large hole portion 211.

Specifically, in this embodiment, since the large hole portion 211 does not need to cooperate with the clamping member 311, it only needs to provide space for the clamping member 311 to extend in. Therefore, there is no special requirement on the specific shape of the large hole portion 211, for example, It can be round, square, triangular, etc. Preferably, the small hole portion 212 may be an elongated hole, and the small hole portion 212 may extend in a direction away from the large hole portion 211. Therefore, the small hole portion 212 is an elongated hole that can guide the clamping member to be locked into a preset position on the one hand. On the other hand, a space is also provided for the holder 311 to escape from the card hole, which is convenient for operation. Of course, the small hole portion 212 may also have other shapes, which are not listed here.

In this embodiment, the aperture of the large hole portion 211 may be greater than or equal to the maximum outer diameter of the clamping member 311, thereby facilitating the clamping member 311 to extend into the clamping hole without difficulty. The aperture of the small hole 212 may be equal to the minimum outer diameter of the clamping member 311. When the small hole 212 is an elongated hole, the aperture of the small hole 212 specifically refers to the width of the elongated hole, and the aperture of the small hole 212 is equal to The minimum outer diameter of the holding member 311 can make the holding member 311 be stably held in the small hole 212, which is caused by vibration when the agricultural plant protection machine is in motion or when other power devices on the agricultural plant protection machine work. It will not affect the stability of the clamping member 311 in the clamping hole 21.

Furthermore, a driving device for driving the water pump 31 to operate may be provided above the water pump 31. The driving device is preferably a motor 32. Preferably, the motor of each water pump 31 is arranged above the water pump 31, thereby preventing water leakage when the water pump 31 is damaged, and the leaked liquid enters the motor to damage the motor, thereby achieving the purpose of protecting the motor. The clamping member 311 and the clamping hole 21 can be in elastic contact. In turn, it can prevent the vibration of the power unit on the agricultural plant protection machine or the motor driving the water pump 31 from affecting the installation stability of the water pump 31, through the elastic contact of the clamping member 311 with the clamping hole 21, for example, the clamping member 311 and the card A rubber part is arranged between the holes 21 to improve the vibration damping performance between the two. The vibration caused by the operation of the power unit of the agricultural plant protection machine and the motor of the water pump 31 is due to the elastic contact between the clamping part 311 and the clamping hole 21 This greatly reduces the risk of the clamping member 311 shaking in the clamping hole 21 or even jumping out of the clamping hole 21.

In order to achieve elastic contact between the clamping member 311 and the clamping hole 21, specifically, the clamping member 311 may be a rubber member; or, the outer wall of the clamping member 311 has a rubber layer, and the clamping member 311 may be based on a rigid member. A rubber layer is arranged on the outer wall of the rigid base. After the clamping member 311 is clamped into the clamping hole 21, the rubber layer of the clamping member 311 is pressed into contact with the clamping hole, and the friction is large, which can effectively prevent the clamping member 311 from shaking and detaching from the clamping hole 21.

Of course, the inner side wall of the card hole 21 may also have a rubber layer. The two rubber layers are in contact, thereby more effectively improving the vibration damping performance and improving the stability of the water pump 31 after installation.

Example four

This embodiment is based on the third embodiment, and further, as shown in FIG. 4, the retaining member 311 includes a retaining portion 311a for mating with the small hole portion 212, and a retaining portion 311a for preventing the retaining member 311a from coming out of the small hole. The limiting portion 311b where the portion 212 escapes. Specifically, the clamping portion 311a may be cylindrical, cuboid, etc., and the clamping member 311a may be a boss coaxial with the clamping portion 311a, or may also be a rod shape that is perpendicular or substantially perpendicular to the clamping portion 311a. Any structure of sheet shape, strip shape, or block shape may be used as long as the structure can prevent the clamping portion 311a from falling out of the small hole portion 212, and this embodiment will not list them one by one here.

It should be noted that the detachment of the clamping portion 311a from the small hole portion 212 in this embodiment refers to directly escaping from the small hole portion 212, rather than escaping through the large hole portion 211.

Preferably, the cross-section of the limiting portion 311b may be circular, and the cross-sectional size of the limiting portion 311b may be larger than the cross-sectional size of the clamping portion 311a, thereby preventing the clamping portion 311a from coming out. The limiting portion 311b may include two, and the two limiting portions are respectively located at both ends of the holding portion to form a dumbbell-like structure, so that the holding member 311 cannot be removed from the holding member 311 in the thickness direction of the mounting frame 20 The hole 21 can only escape from the large hole 211, that is, when the water pump 31 needs to be taken, the water pump 31 can be detached from the mounting frame 20. It can be understood that, in order to facilitate the removal of the water pump 31, that is, the retaining member 311 can be detached from the large hole portion 211, the large hole portion 211 should be able to completely accommodate the restricting portion 311b to pass through.

In this embodiment, the limiting portion 311b and the clamping portion 311a can be detachably connected or non-detachable connected, or integrally formed. It is specifically related to actual needs. For example, when the limiting portion 311b is detachably connected to the retaining portion 311a, when the water pump 31 is taken out, the entire retaining member 311 can be directly removed from the retaining hole, or the limiting portion can be removed Disconnecting the connection relationship between the 311b and the clamping portion 311a can realize the removal of the water pump 31 from the mounting frame 20, and the operation modes are various. When the limiting portion 311b and the clamping portion 311a are not detachably connected, for example, when welded together, or when integrally formed, the structure of the clamping member 311 is stable, and there will be no loose parts of the clamping member 311, which improves System security. In addition, when the holding part 311 is an integrally formed part, the processing cost is lower, which is beneficial to cost saving. Those skilled in the art can select the connection manner between the limiting portion 311b and the holding portion 311a according to specific requirements, which is not limited in this embodiment.

In addition, it should be pointed out that when the limiting portion 311b and the clamping portion 311a are detachably connected, for example, when they are screwed together, for example, one of the limiting portions 311b and the clamping portion 311a forms a bolt, and the other limiting portion 311b and the clamping portion 311a form a bolt. The portion 311b can be a nut and screwed on the bolt. Under this structure, the hole 21 may not distinguish between the large hole portion 211 and the small hole portion 212, and the hole 21 may be a round hole. When the water pump 31 needs to be removed At this time, the corresponding nut (limiting portion 311b) can be directly unscrewed from the bolt, and then the bolt can be withdrawn from the clamping hole 21.

Example five

This embodiment is further on the basis of any one of Embodiment 1 to Embodiment 4. The spray head 50 may include a spray head main body 51 connected with the spray head connection water pipe 501 and a nozzle 52 connected to the end of the spray head main body 51 for spraying liquid medicine. One water pump 31 can be connected to multiple spray heads 50, and multiple spray heads 50 can form a spray head assembly. The nozzle connection pipe 501 connected to a water pump 31 may include an inlet pipe 5011 and two or more outlet pipes 5012. One end of the inlet pipe 5011 may be connected to the water pump 31, and two or more outlet pipes. 5012 is led out from the other end of the water inlet pipe 5011, and then connected to each spray head 50, so that one water pump 31 controls multiple spray heads 50.

Fig. 9 is a schematic structural diagram of a spray head of a spray system provided by an embodiment of the present invention. As shown in Figures 1 and 9, the end of one outlet pipe 5012 of the nozzle connecting pipe 501 can be connected to at least two nozzles 50. As shown in Figure 9, the end of one outlet pipe 5012 is connected to two nozzles 50, and two nozzles The arrangement axis of the 50 is substantially vertical, so that the two spray heads 50 can spray in two mutually perpendicular directions respectively to realize multi-directional spraying.

Further, in order to realize that a plurality of spray heads 50 can be independently controlled, a valve body device for turning on or off the spray channel of each spray head 50 may be provided in the spray channel of each spray head 50, and each spray head 50 Independent control, there is no need for each nozzle 50 to correspond to a water pump 31, which can effectively reduce the number of water pumps 31 and save costs. In addition, each nozzle 50 can be controlled separately, and the corresponding nozzle 50 can be selected to be turned on or off according to specific spraying requirements. .

The sprinkler connection pipe 501 connected to the sprinkler 50 can be a hose to facilitate the flexible arrangement of the position of the sprinkler 50, or the sprinkler connection pipe 501 can be a hard pipe, and the sprinkler connection pipe 501 can be rotatably connected with the water pump 31 to adjust the connection to the sprinkler connection pipe The position of the nozzle 50 on the 501 can realize multi-directional spraying.

As shown in Figure 9, the internal spray hole of the nozzle 52 can be tapered, and the cross-sectional size of the nozzle near the spraying end is larger than the cross-sectional size far away from the spraying end, so that the liquid sprayed from the nozzle 52 can be sprayed in a disc-shaped manner. Come out, and then effectively expand the spraying area and improve the spraying efficiency. Of course, as an option, the internal nozzle hole of the nozzle 52 can also be inverted cone shape, the cross-sectional size of the nozzle hole near the spraying end is smaller than the cross-sectional size far away from the spraying end, and the internal nozzle hole of the nozzle 52 can also take other shapes, for example, round. The shape, square, etc. are not particularly limited in this embodiment, and can be specifically selected according to the spraying requirements of specific crops.

Further, the spray head main body 51 can be detachably connected to the spray head connecting water pipe 501. As shown in FIG. 9, the nozzle 52 can be detachably connected to the spray head main body 51. The connection mode of the nozzle connecting water pipe 501 with the nozzle body 51 and the nozzle 52 can be the same as the quick disassembly connection mode of the water separator 40, that is, a threaded extrusion joint is used to realize quick disassembly, and has the advantages of convenient assembly and disassembly and reliable sealing. Of course, it can be understood that the nozzle connecting water pipe 501 can also be connected to the nozzle body 51 and the nozzle 52 in other quick-release forms, which is not limited herein.

As shown in FIG. 9, in this embodiment, one spray system 100 may include at least two different types of nozzles 52, and the spray head body 51 may be selectively connected to one of the at least two different types of nozzles 52. connection. The nozzle 52 is detachably connected to the nozzle body 51. Specifically, the nozzle 52 can be detachably connected to the nozzle body 51 in a quick-release manner. The nozzle body 51 may have a clamping portion, and the nozzle 52 may have a matching fit with the clamping portion. When installing, the nozzle 52 can be rotated in the forward rotation direction, so that the mating part is clamped with the clamping part to realize the connection between the nozzle 52 and the nozzle body 51, and when the nozzle 52 needs to be removed, only rotate the nozzle in the reverse direction 52, the mating part can be disengaged from the clamping part, and the nozzle 52 and the nozzle body 51 can be quickly disassembled. Of course, the nozzle body 51 may also have a matching part, and the nozzle 52 may have a clamping part, and this function can also be realized.

Two different types of nozzles 52 may include: nozzles 52 with different nozzle hole diameters, nozzles 52 with different nozzle hole shapes, and so on. When the user uses the spraying system to spray crops, he can select different nozzles 52 for spraying according to the type of crops currently being sprayed, thereby improving the versatility of the spraying system.

Example Six

This embodiment is on the basis of any one of Embodiment 1 to Embodiment 5. Further, FIG. 10 is a structural diagram of the one-way valve at the water outlet of the water tank of the spray system provided by the embodiment of the present invention. As shown in FIGS. 2 and 10, a check valve 60 for connecting the water tank 10 and the water pump 31 is provided at the water outlet of the water tank 10. The check valve 60 may include a valve body 61 and a valve base 62. The relative state of the valve body 61 and the valve base 62 can include a docked state and a separated state; a valve core 63 is movably arranged in the valve body 61, and in the docked state, the valve body 61 and the valve base 62 are connected to form a liquid flow channel , In the separated state, the valve core 63 seals the liquid flow channel 65.

Specifically, a top post 621 is provided on the valve base 62. When in a separated state, the valve core 63 seals an opening 64 that communicates between the valve body 61 and the valve base 62, thereby blocking the liquid flow channel 65 and preventing liquid Flowing from the water tank 10 to the water pump 31, the valve core 63 can be an elastic seal as a whole, or, the outer side wall of the valve core 63 is provided with a sealing ring, so that the valve core 63 can seal the liquid flow channel 65. When the valve body 61 is inserted into the valve base 62, the top post 621 on the valve base 62 abuts on the valve core 63, pushing the valve core 63 open, so that the valve core 63 is separated from the opening 64, and then the liquid flow channel 65 Connected, liquid can flow from the water tank 10 to the water pump 31.

Further, an axial spring 66 can be connected to the valve core 63. In the separated state, the axial spring 66 can maintain the valve core 63 at the position of the opening 64. When in the docking state, the top post 621 overcomes the axial spring 66. The elastic force will push the valve core 63 open. When the water tank 10 is pulled out from the one-way valve 60, the valve body 61 is separated from the valve base 62, and the valve core 63 falls to the opening 64 under the action of the elastic restoring force of the axial spring 66 to seal the liquid flow channel 65 to prevent Liquid (medicinal liquid) flows out, and no liquid medicine is wasted.

In addition, FIG. 8 is a schematic structural diagram of a flow meter of a spray system provided by an embodiment of the present invention; as shown in FIGS. 2 and 8, a flow meter 70 for detecting the spray flow rate may be provided under the valve base 62. 70 communicates with the liquid flow channel 65 inside the valve base 62. The flow meter detects the flow rate in the liquid flow channel 65 to obtain the corresponding spray flow rate, which can help the user control the spray flow rate. Preferably, the flow meter 70 can be connected to the valve base 62 with a quick-release joint, so that the flow meter 70 can be quickly replaced or repaired.

Example Seven

This embodiment is on the basis of any one of the first to the sixth embodiment. Further, the water tank 10 may also be provided with a level gauge (not shown in the figure) for detecting the water level in the water tank 10, specifically It is set at the bottom position of the water tank 10, by detecting the water level of the water tank 10, the amount of liquid medicine remaining in the water tank 10 can be clearly known, which helps the user to understand whether the liquid medicine in the water tank 10 is sufficient and add the liquid medicine in time.

As shown in FIG. 2, a filter screen 80 may be provided at the top opening of the water tank 10. The filter screen 80 covers the top opening of the water tank 10 and is detachably connected to the water tank 10. A filter 80 is provided on the top of the water tank 10, which can effectively prevent dust from entering through the opening of the water tank 10 and protect the spraying system. In addition, the filter screen 80 may be detachable to facilitate cleaning of the filter screen 80.

The spraying system provided by the embodiment of the present invention is assembled in a modular design and quick disassembly manner for each component, which is beneficial to the maintenance or replacement of each component, effectively improves the spraying efficiency, and improves the versatility.

Example eight

This embodiment provides an agricultural plant protection machine. The agricultural plant protection machine in this embodiment may include an agricultural drone, a pesticide spraying vehicle, a manual spraying device, and so on. Specifically, as shown in FIGS. 1 to 6, the agricultural plant protection machine includes a frame 200, a spray head 50, and a spray system 100, where the spray system 100 includes: a water tank 10, a mounting frame 20, and a pump unit 30.

Specifically, the water tank 10 may be used to contain the liquid to be sprayed, and the liquid to be sprayed may include a chemical liquid mixed with pesticides, clean water, etc., which is not limited in this embodiment. Fig. 7 is a schematic structural diagram of a water tank of a spray system provided by an embodiment of the present invention. As shown in FIG. 7, further, the water tank 10 may be provided with scales, and the scale lines may be made of transparent parts, or, the place where the scales are arranged may be a transparent shell as a whole, and the scale lines may be made of ink, protrusions, depressions, etc. Arranged on the transparent shell in any manner to facilitate the user to observe the amount of liquid inside the water tank 10 outside the water tank 10.

Example 9

On the basis of the eighth embodiment, this embodiment further provides a specific installation method of the water pump 31. As shown in FIG. 4, the first connecting portion may be a clamping hole 21, and the second connecting portion may be a clamping hole. 21 mating card holder 311.

In other embodiments, the first connecting portion may also be the clamping member 311, and the second connecting portion may be the clamping hole 21 that cooperates with the clamping member 311. Wherein, the specific forming mode and arrangement mode of the clamping member 311 and the clamping hole 21 can be the same as the above-mentioned embodiment, and will not be repeated here.

The specific structure and function of the spray system in this embodiment are the same as those in the second embodiment. For details, please refer to the description of the second embodiment, which will not be repeated in this embodiment.

Example ten

This embodiment is based on the ninth embodiment, and further, as shown in FIGS. 4 and 6, the clamping hole 21 may include a large hole portion 211 and a small hole portion 212 that are communicated with each other, and the large hole portion 211 is used for clamping The member 311 extends in, and the small hole portion 212 is used for the clamping member 311 to be mounted. It can be understood that when the clamping hole 21 is formed on the second mounting frame 20 b and the clamping member 311 is formed on the water pump 31, the large hole portion 211 may be located above the small hole portion 212. When the clamping hole 21 is formed on the water pump 31 and the clamping member 311 is formed on the second mounting frame 20b, the small hole portion 212 is located above the large hole portion 211.

In this embodiment, the aperture of the large hole portion 211 may be greater than or equal to the maximum outer diameter of the clamping member 311, thereby facilitating the clamping member 311 to extend into the clamping hole without difficulty. The hole diameter of the small hole 212 may be equal to the minimum outer diameter of the clamping member 311. Furthermore, a driving device for driving the water pump 31 to operate may be provided above the water pump 31. The driving device is preferably a motor 32. Preferably, the motor of each water pump 31 is arranged above the water pump 31, thereby preventing water leakage when the water pump 31 is damaged, and the leaked liquid enters the motor to damage the motor, thereby achieving the purpose of protecting the motor. The clamping member 311 and the clamping hole 21 can be in elastic contact. In order to achieve elastic contact between the clamping member 311 and the clamping hole 21, specifically, the clamping member 311 may be a rubber member; or, the outer wall of the clamping member 311 has a rubber layer, and the clamping member 311 may be based on a rigid member. A rubber layer is arranged on the outer wall of the rigid base. After the clamping member 311 is clamped into the clamping hole 21, the rubber layer of the clamping member 311 is pressed into contact with the clamping hole, and the friction is large, which can effectively prevent the clamping member 311 from shaking and detaching from the clamping hole 21.

The specific structure and function of the spraying system in this embodiment are the same as those in the third embodiment. For details, please refer to the description of the third embodiment, which will not be repeated in this embodiment.

Example 11

This embodiment is based on the tenth embodiment, and further, as shown in FIG. 4, the retaining member 311 includes a retaining portion 311a for mating with the small hole portion 212, and a retaining portion 311a for preventing the retaining member 311a from coming out of the small hole. The limiting portion 311b where the portion 212 escapes. Specifically, the clamping portion 311a may be cylindrical, cuboid, etc., and the clamping member 311a may be a boss coaxial with the clamping portion 311a, or may also be a rod shape that is perpendicular or substantially perpendicular to the clamping portion 311a. Any structure of sheet shape, strip shape, or block shape may be used as long as the structure can prevent the clamping portion 311a from falling out of the small hole portion 212, and this embodiment will not list them one by one here.

The specific structure and function of the spray system in this embodiment are the same as those in the fourth embodiment. For details, please refer to the description of the fourth embodiment, which will not be repeated in this embodiment.

Embodiment 12

This embodiment is a further step on the basis of any one of the eighth to the eleventh embodiment. The spray head 50 may include a spray head main body 51 connected with the spray head connection water pipe 501 and a nozzle 52 connected to the end of the spray head main body 51 for spraying liquid medicine. One water pump 31 can be connected to multiple spray heads 50, and multiple spray heads 50 can form a spray head assembly. The nozzle connection pipe 501 connected to a water pump 31 may include an inlet pipe 5011 and two or more outlet pipes 5012. One end of the inlet pipe 5011 may be connected to the water pump 31, and two or more outlet pipes. 5012 is led out from the other end of the water inlet pipe 5011, and then connected to each spray head 50, so that one water pump 31 controls multiple spray heads 50.

Fig. 9 is a schematic structural diagram of a spray head of a spray system provided by an embodiment of the present invention. As shown in Figure 9, the end of one outlet pipe 5012 of the nozzle connecting pipe 501 can be connected to at least two nozzles 50. As shown in Figure 9, the end of one outlet pipe 5012 is connected with two nozzles 50, and the arrangement of the two nozzles 50 The axial direction is substantially vertical, so that the two spray heads 50 can spray in two mutually perpendicular directions respectively to realize multi-directional spraying.

The sprinkler connecting water pipe 501 can be rotatably connected with the water pump 31 to adjust the position of the sprinkler 50 connected to the sprinkler connecting water pipe 501 to realize multi-directional spraying.

Further, the spray head main body 51 can be detachably connected to the spray head connecting water pipe 501. As shown in FIG. 9, the nozzle 52 can be detachably connected to the spray head main body 51. As shown in FIG. 9, in this embodiment, one spray system 100 may include at least two different types of nozzles 52, and the spray head body 51 may be selectively connected to one of the at least two different types of nozzles 52. connection. Two different types of nozzles 52 may include: nozzles 52 with different nozzle hole diameters, nozzles 52 with different nozzle hole shapes, and so on. When the user uses the spraying system to spray crops, he can select different nozzles 52 for spraying according to the type of crops currently being sprayed, thereby improving the versatility of the spraying system.

The specific structure and function of the spraying system in this embodiment are the same as those in the fifth embodiment. For details, reference may be made to the description of the fifth embodiment, which will not be repeated in this embodiment.

Embodiment 13

This embodiment is based on any one of the eighth to the twelfth embodiment, and further, FIG. 10 is a schematic structural diagram of the one-way valve at the water outlet of the water tank of the spray system provided by the embodiment of the present invention. As shown in FIGS. 2 and 10, a check valve 60 for connecting the water tank 10 and the water pump 31 is provided at the water outlet of the water tank 10. The check valve 60 may include a valve body 61 and a valve base 62. The relative state of the valve body 61 and the valve base 62 may include a docking state (the state shown in FIG. 10) and a separated state; a valve core 63 is movably provided in the valve body 61, and in the docking state, the valve body 61 and the valve base 62 In the separated state, the valve core 63 seals the liquid flow channel 65.

In addition, FIG. 8 is a schematic structural diagram of a flow meter of a spray system provided by an embodiment of the present invention; as shown in FIGS. 2 and 8, a flow meter 70 for detecting the spray flow rate may be provided under the valve base 62. It communicates with the liquid flow channel 65 inside the valve base 62.

The specific structure and function of the spraying system in this embodiment are the same as those in the sixth embodiment. For details, please refer to the description of the sixth embodiment, which will not be repeated in this embodiment.

Embodiment Fourteen

This embodiment is based on any one of the eighth to the thirteenth embodiment. Furthermore, the water tank 10 may also be provided with a level gauge (not shown in the figure) for detecting the water level in the water tank 10, Specifically, it can be set at the bottom position of the water tank 10. By detecting the water level of the water tank 10, the amount of liquid medicine remaining in the water tank 10 can be clearly known, which helps the user to understand whether the liquid medicine in the water tank 10 is sufficient and add the liquid medicine in time.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A spraying system, characterized in that it comprises:

A water tank, a water separator is connected to the water tank, and the water separator is in communication with the water tank;

A mounting frame, which is provided with a plurality of first connecting parts;

The pump set includes a plurality of water pumps, each of which is respectively connected with a corresponding water outlet on the water separator, and each of the water pumps is provided with a second connecting portion, and the first connecting portion is matched with the second connecting portion So that each of the water pumps is hung on the mounting frame, and the water pump is quickly connected to the mounting frame through the first connecting portion and the second connecting portion.
The spraying system according to claim 1, wherein the first connecting portion is a clamping hole, and the second connecting portion is a clamping member that cooperates with the clamping hole; or, the first connecting portion It is a clamping member, and the second connecting portion is a clamping hole that cooperates with the clamping member.
The spraying system according to claim 2, wherein the holding member includes at least one of the following: a boss, a hook, and a boss.
The spray system according to claim 2, wherein the clamping hole comprises a large hole portion and a small hole portion that are communicated with each other, and the large hole portion is used for extending the clamping member, and the small hole The part is used for mounting the card holder.
The spray system according to claim 4, wherein the aperture of the large hole is greater than or equal to the maximum outer diameter of the retaining member; the aperture of the small hole is equal to the minimum outer diameter of the retaining member path.
The spraying system according to claim 2, wherein the clamping member is in elastic contact with the clamping hole.
The spray system according to claim 6, wherein the holding member is a rubber member, or the outer wall of the holding member has a rubber layer.
The spray system according to claim 6, wherein the inner side wall of the card hole has a rubber layer.
The spray system according to claim 4, wherein the retaining member includes a retaining portion for mating with the small hole, and for preventing the retaining member from falling out of the small hole The limit part.
The spray system according to claim 9, wherein the cross-sectional size of the limiting portion is larger than the cross-sectional size of the clamping portion, the limiting portion includes two, and the two limiting portions are respectively Located at both ends of the clamping part.
The spraying system according to claim 1, wherein the mounting frame comprises a first mounting frame for connecting to external equipment, and a second mounting frame for hanging the water pump, the first The material of the mounting frame and/or the second mounting frame is carbon fiber.
The spray system according to claim 11, wherein the second mounting frame is plate-shaped.
The spray system according to claim 11, wherein the second mounting frame has a weight reduction hole.
The spray system according to claim 11, wherein the first mounting frame is detachably connected to an external device.
The spray system according to claim 1, wherein a driving device for driving the water pump is provided above the water pump.
The sprinkler system according to claim 1, wherein the water pump is connected with a sprinkler head through a sprinkler connection pipe, and the sprinkler head includes a sprinkler main body connected with the sprinkler connection pipe and a sprinkler head connected to the end of the sprinkler main body. Nozzles for spraying liquid medicine.
The spray system according to claim 16, wherein the spray head body is detachably connected to the spray head connecting water pipe, and the nozzle is detachably connected to the spray head body.
The spray system according to claim 17, wherein the nozzle includes at least two different types of nozzles, and the spray head body can be selectively connected to one of the at least two different types of nozzles.
The sprinkler system according to claim 16, wherein the sprinkler connection pipe is rotatably connected with the water pump.
The spraying system according to claim 1, wherein the water outlet of the water tank is provided with a one-way valve for connecting the water tank and the water pump, the one-way valve includes a valve body and a valve base; the valve body and The relative state of the valve base includes a docked state and a separated state; a valve core is movably arranged in the valve body, and in the docked state, a fluid flow channel is formed between the valve body and the valve base. In the separated state, the valve core seals the liquid flow channel.
The spray system according to claim 1, wherein the water tank is provided with a level gauge for detecting the water level in the water tank.
The spray system according to claim 1, wherein a filter screen is provided at the top opening of the water tank, and the filter screen covers the top opening of the water tank and is detachably connected to the water tank.
The spraying system according to claim 1, wherein the water separator is connected with the water pump and/or the water tank by a quick-release joint.
The spraying system according to claim 23, wherein the quick release joint is a threaded extrusion joint.
22. The spraying system of claim 20, wherein a flow meter for detecting spraying flow is provided below the valve base, and the flow meter is in communication with the internal liquid flow channel of the valve base.
The spraying system according to claim 25, wherein the flow meter is connected to the valve base by a quick-release joint.
An agricultural plant protection machine, which is characterized by comprising a frame, a spray head, and a spraying system, wherein the spraying system includes:

A water tank, a water separator is connected to the water tank, and the water separator is in communication with the water tank;

A mounting frame, which is provided with a plurality of first connecting parts;

The pump set includes a plurality of water pumps, each of which is respectively connected with a corresponding water outlet on the water separator, and each of the water pumps is provided with a second connecting portion, and the first connecting portion is matched with the second connecting portion So that each of the water pumps is hung on the mounting frame, and the water pump is quickly connected to the mounting frame through the first connecting portion and the second connecting portion.
The agricultural plant protection machine according to claim 27, wherein the first connection part is a clamping hole, and the second connection part is a clamping member that cooperates with the clamping hole; or, the first connection The part is a clamping piece, and the second connecting part is a clamping hole that matches with the clamping piece.
The agricultural plant protection machine according to claim 28, wherein the holding member comprises at least one of the following: a protrusion, a hook, and a protrusion.
The agricultural plant protection machine according to claim 28, wherein the clamping hole comprises a large hole portion and a small hole portion which are communicated with each other, and the large hole portion is used for the insertion of the clamping member, and the small hole The hole is used for mounting the card holder.
The agricultural plant protection machine according to claim 30, wherein the hole diameter of the large hole is greater than or equal to the maximum outer diameter of the clamping member; the hole diameter of the small hole is equal to the minimum diameter of the clamping member. Outer diameter.
The agricultural plant protection machine according to claim 28, wherein the clamping member is in elastic contact with the clamping hole.
The agricultural plant protection machine according to claim 32, wherein the holding member is a rubber member, or the outer wall of the holding member has a rubber layer.
The agricultural plant protection machine according to claim 32, wherein the inner side wall of the card hole has a rubber layer.
The agricultural plant protection machine according to claim 30, wherein the retaining member includes a retaining portion for cooperating with the small hole portion, and a retaining portion for preventing the retaining member from being removed from the small hole portion. The limit part of the prolapse.
The agricultural plant protection machine according to claim 35, wherein the cross-sectional size of the limiting portion is larger than the cross-sectional size of the clamping portion, the limiting portion includes two, and the two limiting portions They are respectively located at the two ends of the clamping part.
The agricultural plant protection machine according to claim 27, wherein the mounting frame comprises a first mounting frame for connecting to an external device, and a second mounting frame for hanging the water pump, and the first mounting frame The material of the first mounting frame and/or the second mounting frame is carbon fiber.
The agricultural plant protection machine according to claim 37, wherein the second mounting frame is plate-shaped.
The agricultural plant protection machine of claim 37, wherein the second mounting frame has a weight reduction hole.
The agricultural plant protection machine according to claim 37, wherein the first mounting frame is detachably connected to an external device.
The agricultural plant protection machine according to claim 27, wherein a driving device for driving the water pump is provided above the water pump.
The agricultural plant protection machine according to claim 27, wherein the spray head and the water pump are connected by a spray head connecting water pipe, and the spray head includes a spray head main body connected with the spray head connection water pipe and a spray head connected to the end of the spray head main body. Nozzle for spraying liquid medicine.
The agricultural plant protection machine according to claim 42, wherein the spray head body is detachably connected to the spray head connecting water pipe, and the nozzle is detachably connected to the spray head body.
The agricultural plant protection machine according to claim 43, wherein the nozzle includes at least two different types of nozzles, and the nozzle body can be selectively connected to one of the at least two different types of nozzles.
The agricultural plant protection machine according to claim 42, wherein the sprinkler connection pipe is rotatably connected with the water pump.
The agricultural plant protection machine according to claim 27, wherein the water outlet of the water tank is provided with a one-way valve for connecting the water tank and the water pump, and the one-way valve includes a valve body and a valve base; the valve body The relative state with the valve base includes a docked state and a separated state; a valve core is movably arranged in the valve body, and in the docked state, the valve body and the valve base are connected to form a liquid flow In the separated state, the valve core seals the liquid flow channel.
The agricultural plant protection machine according to claim 27, wherein the water tank is provided with a level gauge for detecting the water level in the water tank.
The agricultural plant protection machine according to claim 27, wherein a filter screen is provided at the top opening of the water tank, and the filter screen covers the top opening of the water tank and is detachably connected to the water tank.
The agricultural plant protection machine according to claim 27, wherein the water separator is connected with the water pump and/or the water tank by a quick-release joint.
The agricultural plant protection machine according to claim 49, wherein the quick-release joint is a threaded extrusion joint.
The agricultural plant protection machine according to claim 46, wherein a flow meter for detecting spraying flow is provided below the valve base, and the flow meter is in communication with the internal liquid flow channel of the valve base.
The agricultural plant protection machine according to claim 51, wherein the flow meter is connected to the valve base by a quick-release joint.