Agricultural pesticide spraying nozzle and agricultural movable pesticide spraying device

Abstract

The invention discloses an agricultural pesticide spraying nozzle and an agricultural movable pesticide spraying device.The agricultural pesticide spraying nozzle comprises the movable pesticide spraying device and a nozzle body, a pesticide liquid storage tank is fixedly installed on the movable pesticide spraying device, a liquid conveying pump is arranged in the pesticide liquid storage tank, and a liquid conveying pipe is connected to the liquid conveying pump; a supporting table is fixedly arranged on one side of the movable pesticide spraying device. According to the device, the liquid outlet control box can be driven to rotate by rotating the rotating handle on the funnel shell, so that different numbers of liquid outlet control grooves corresponding to different liquid outlet ring pipes are aligned with liquid outlet holes in the liquid outlet box, then switching of multiple liquid outlet modes such as single-ring liquid outlet and multi-ring combined liquid outlet is achieved, the pesticide spraying amount in unit time is accurately adjusted, and the pesticide spraying efficiency is improved. The swing arm can rotate around the supporting rod and is matched with the synchronous rotating mechanism to achieve direction adjustment of the plate type liquid outlet pipe, the swing locking mechanism can fix the position of the swing arm, the spraying angle requirements in different operation scenes are met, the flexibility and applicability of pesticide spraying operation are greatly improved, and the pesticide spraying requirements of crops in different growth states are effectively met.

Description

Technical Field

[0001] This application relates to the field of agricultural spray nozzle technology, such as an agricultural spray nozzle and a mobile agricultural spraying device. Background Technology

[0002] Pesticides refer to chemically synthesized substances or mixtures of substances, or their preparations, used to prevent and control diseases, insects, weeds, rodents, and other harmful organisms that threaten agriculture and forestry, as well as to purposefully regulate the growth of plants and insects. They are widely used in agricultural, forestry, and animal husbandry production, environmental and household sanitation for pest control and disease prevention, and industrial products for mold and insect prevention.

[0003] In agricultural production, pesticide spraying is a crucial step in controlling pests and diseases and ensuring high crop yields. With the development of large-scale and mechanized agriculture, mobile spraying devices, due to their advantages of high efficiency and low labor intensity, are gradually replacing traditional shoulder-mounted sprayers and are widely used in various types of farmland operations. However, existing mobile spraying devices still have significant shortcomings: on the one hand, the nozzle structure is fixed, and the spray volume adjustment method is limited, relying heavily on adjusting the infusion pump power, which can easily lead to unstable spray pressure, resulting in problems such as excessive pesticide application causing crop burns or insufficient pesticide application failing to achieve the desired control effect; on the other hand, the flexibility in adjusting the spray angle and range is insufficient, making it difficult to achieve precise coverage for crops with different row spacing and growth heights, resulting in pesticide waste and increasing the risk of pesticide residues. Furthermore, the nozzles of some devices are prone to clogging due to pesticide residue impurities, making maintenance inconvenient and further affecting operational efficiency. These problems seriously restrict the accuracy and practicality of pesticide spraying operations, necessitating optimization and improvement of the spraying device structure. Summary of the Invention

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0005] To address the aforementioned technical problems, this application provides an agricultural spray nozzle and a mobile agricultural spraying device, comprising a mobile spraying device and a nozzle. A pesticide storage tank is fixedly installed on the mobile spraying device, and an infusion pump is installed in the storage tank. An infusion pipe is connected to the infusion pump. A support platform is fixedly installed on one side of the mobile spraying device, and a support rod is fixedly installed on the support platform. A swing arm is rotatably installed on the top of the support rod. A plate-type liquid outlet pipe is rotatably installed at the bottom of the swing arm away from the support rod. A plurality of nozzles are fixedly installed at equal intervals at the bottom of the plate-type liquid outlet pipe. A synchronous rotation mechanism is provided in the swing arm, and a swing locking mechanism is provided at the end of the swing arm near the support rod. The infusion pipe passes through the interior of the swing arm and connects to the plate-type liquid outlet pipe, and the internal cavity of the plate-type liquid outlet pipe communicates with the nozzles.

[0006] Furthermore, the nozzle structure includes a funnel shell, a liquid outlet box fixedly installed in the funnel shell, several hoses fixedly connected to the bottom of the liquid outlet box, a bracket fixedly installed in the funnel shell, the bottom of the hoses connected to the bracket, several liquid outlet ring tubes fixedly connected to the bottom of the bracket, the liquid outlet ring tubes communicating with the hoses, several nozzles provided at the bottom of the liquid outlet ring tubes, a rotating handle provided on the funnel shell, a liquid outlet control box rotatably installed in the liquid outlet box, an infusion pipe connected to the liquid outlet control box, the upper part of the liquid outlet control box fixedly connected to the bottom of the plate-type liquid outlet pipe, and a liquid outlet control groove opened in the liquid outlet control box.

[0007] Furthermore, at least two nozzles are provided on the plate-type liquid outlet pipe.

[0008] Furthermore, the medicine storage tank is equipped with a medicine addition port.

[0009] Furthermore, the synchronous rotation mechanism includes a fixed shaft and a rotating shaft. The fixed shaft is fixedly connected to the top of the support rod, and the rotating shaft is rotatably installed in the swing arm. Synchronous belts are installed on the fixed shaft and the rotating shaft, and the rotating shaft is fixedly connected to the plate-type liquid outlet pipe.

[0010] Furthermore, the swing locking mechanism includes a threaded rod, which is installed in a fixed shaft through a threaded structure, and a turntable is fixedly installed at the top of the threaded rod after passing through the swing arm.

[0011] Furthermore, several of the liquid outlet ring tubes are arranged in concentric circles with equal spacing, and the nozzles are symmetrically distributed circumferentially at equal spacing at the bottom of each liquid outlet ring tube.

[0012] Furthermore, the support is cross-shaped, and the hoses equidistant from the center of the cross-shaped support are connected to the same liquid outlet ring pipe. The liquid outlet box has a bottom plate, and the bottom plate has several liquid outlet holes distributed in a cross shape. Each liquid outlet hole is connected to a hose at its bottom.

[0013] Furthermore, the liquid discharge control tank is arc-shaped, and the distance from the center of several liquid discharge control tanks to the bottom center of the liquid discharge control box increases sequentially. The length of the liquid discharge control tank from the bottom center of the liquid discharge control box increases sequentially, and the opening position of the liquid discharge control tank is adapted to the position of the liquid discharge hole.

[0014] Compared with the prior art, this application has the following beneficial effects: Precise and adjustable spraying volume: Through the coordinated design of the liquid control box and the liquid box, the alignment state of different liquid control tanks and liquid holes can be switched by turning the handle, realizing the combination of single ring, double ring or multi-ring liquid outlet pipes. The spraying volume can be precisely adjusted from the liquid outlet structure to adapt to the pesticide needs of crops at different growth stages such as seedling stage and growth stage, avoid damage to crops caused by improper dosage, and improve the effect of pest and disease control.

[0015] Flexible and controllable operating range: The swing arm can rotate freely around the support rod. With the synchronous rotation mechanism, the plate-type liquid outlet pipe can adjust its direction synchronously with the rotation of the swing arm, enabling multi-directional spraying in front of, to the side, etc. of the mobile spraying device; The swing locking mechanism can fix the position of the swing arm by rotating the turntable, ensuring the angle is stable during spraying, adapting to farmland operations with different row spacing and planting density, and greatly improving the operating coverage and flexibility.

[0016] Stable structure and easy maintenance: The nozzle adopts a funnel-shaped outer shell protection design, which effectively avoids damage to internal components from collisions with external debris; the liquid outlet ring pipe is arranged in concentric circles with equal spacing, and the nozzles are symmetrically distributed around the circumference, resulting in better spray uniformity; the hose connection method is easy to disassemble and replace, and the rotation and cooperation structure between the liquid outlet control box and the liquid outlet box is simple, which is not easy to be blocked by impurities in the liquid, reducing maintenance costs and difficulty.

[0017] Significantly improved operational efficiency: Multiple nozzles are installed at equal intervals at the bottom of the plate-type liquid outlet pipe, and the multi-ring liquid outlet pipe design allows for a wider coverage area with a single spray; the mobile design of the mobile spraying device, combined with a high-efficiency infusion pump, ensures stable liquid delivery. Compared with traditional spraying equipment, it greatly reduces operation time and labor intensity, and improves the operational efficiency of large-scale farmland. Attached Figure Description

[0018] To more clearly illustrate the background technology or the technical solution of this application, the accompanying drawings used in conjunction with the prior art or specific embodiments are briefly introduced below. Obviously, the structures, proportions, sizes, etc. shown in the drawings are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this application, provided that it does not affect the effects and purposes that this application can produce.

[0019] Figure 1 This is a schematic diagram of the device structure when the present invention is not in operation; Figure 2 This is a schematic diagram of the structure of the present invention in its working state; Figure 3 This is a schematic diagram of the second form of the structure when the present invention is in operation; Figure 4 This is a schematic diagram of the liquid discharge control box structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the synchronous rotation mechanism of the present invention; Figure 6 This is an exploded view of the nozzle structure of the present invention; Figure 7 This is an exploded structural diagram of a specific embodiment of the present invention; Figure 8 This is a first-view structural diagram of a specific embodiment of this application.

[0020] The diagram shows: 1. Dispensing ring pipe; 3. Hose; 4. Dispensing box; 5. Funnel shell; 6. Nozzle; 7. Support; 8. Mobile spraying device; 9. Spray head; 11. Drug storage tank; 12. Infusion pump; 13. Infusion pipe; 14. Support platform; 15. Support rod; 16. Swing arm; 17. Plate-type dispensing pipe; 40. Dispensing control box; 41. Base plate; 42. Dispensing hole; 50. Rotating handle; 51. Fixed shaft; 52. Rotating shaft; 53. Synchronous belt; 61. Threaded rod; 62. Turntable; 110. Drug addition port; 400. Dispensing control tank. Detailed Implementation

[0021] To gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference only and are not intended to limit the embodiments of this application. In the following technical description, for ease of explanation, multiple details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in order to simplify the drawings.

[0022] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the embodiments of this application and their implementations, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, in addition to indicating orientation or positional relationship, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in the embodiments of this application can be understood according to the specific circumstances.

[0023] In addition, the terms “set up,” “connect,” and “fix” should be interpreted broadly. For example, “connection” can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0024] With the rapid development of agriculture, shoulder-mounted sprayers have been gradually replaced by mobile sprayers. Mobile sprayers require less labor and are more efficient. However, in actual operation, the amount of pesticide sprayed per unit varies depending on the plant's growth condition. Existing pesticide sprayers cannot adjust the amount of pesticide sprayed, which greatly affects plant growth.

[0025] Therefore, one of the design improvements in this application is to redesign the nozzle, making it a structure with multiple liquid outlet pipes. This allows for adjustment of the spray volume based on the spray structure, and further adjustment of the spray volume according to the plant's adaptability, which is more conducive to plant growth.

[0026] like Figure 1-8 As shown, this application provides an agricultural spray nozzle and a mobile agricultural spraying device, including a mobile spraying device 8 and a nozzle 9. A pesticide storage tank 11 is fixedly installed on the mobile spraying device 8. An infusion pump 12 is provided in the pesticide storage tank 11. An infusion pipe 13 is connected to the infusion pump 12. A support platform 14 is fixedly installed on one side of the mobile spraying device 8. A support rod 15 is fixedly installed on the support platform 14. A swing arm 16 is rotatably installed on the top of the support rod 15. A plate-type liquid outlet pipe 17 is rotatably installed at the bottom of the swing arm 16 away from the support rod 15. A plurality of nozzles 9 are fixedly installed at equal intervals at the bottom of the plate-type liquid outlet pipe 17. A synchronous rotation mechanism is provided in the swing arm 16. A swing locking mechanism is provided at the end of the swing arm 16 near the support rod 15. The infusion pipe 13 passes through the interior of the swing arm 16 and connects to the plate-type liquid outlet pipe 17. The internal cavity of the plate-type liquid outlet pipe 17 communicates with the nozzles 9.

[0027] The nozzle 9 structure includes a funnel shell 5, a liquid outlet box 4 fixedly installed in the funnel shell 5, several hoses 3 fixedly connected to the bottom of the liquid outlet box 4, a bracket 7 fixedly installed in the funnel shell 5, the bottom of the hoses 3 connected to the bracket 7, several liquid outlet ring pipes 1 fixedly connected to the bottom of the bracket 7, the liquid outlet ring pipes 1 communicating with the hoses 3, several nozzles 6 provided at the bottom of the liquid outlet ring pipes 1, a rotating handle 50 provided on the funnel shell 5, a liquid outlet control box 40 rotatably installed in the liquid outlet box 4, the upper part of the liquid outlet control box 40 fixedly connected to the bottom of the plate-type liquid outlet pipe 17, and a liquid outlet control groove 400 opened in the liquid outlet control box 40.

[0028] At least two nozzles 9 are provided on the plate-type liquid outlet pipe 17.

[0029] The medicine storage tank 11 is provided with a medicine addition port 110. The medicine addition port 110 is used to add medicine to the medicine storage tank 11.

[0030] The synchronous rotation mechanism includes a fixed shaft 51 and a rotating shaft 52. The fixed shaft 51 is fixedly connected to the top of the support rod 15, and the rotating shaft 52 is rotatably mounted in the swing arm 16. A synchronous belt 53 is installed on the fixed shaft 51 and the rotating shaft 52, and the rotating shaft 52 is fixedly connected to the plate-type liquid outlet pipe 17. When the swing arm 16 is rotated, under the action of the synchronous rotation mechanism, the rotating shaft 52 will rotate synchronously with the rotation of the swing arm 16, thereby realizing that the plate-type liquid outlet pipe 17 rotates with the rotation of the swing arm 16. In the working state, the plate-type liquid outlet pipe 17 and several nozzles 9 can perform spraying operations in front of the mobile spraying device 8 or on the side of the mobile spraying device 8. In the non-working state, the plate-type liquid outlet pipe 17 and nozzles 9 are stored above the mobile spraying device 8 as the swing arm 16 rotates. The infusion tube 13 is rotatably connected to the top of the rotating shaft 52 and communicates with the plate-type infusion tube 17 through the internal cavity of the rotating shaft 52. The swing arm 16 has a buckle to fix the position of the infusion tube 13 to prevent interference between the infusion tube 13 and the synchronous rotation mechanism.

[0031] The swing locking mechanism includes a threaded rod 61, which is installed in the fixed shaft 51 via a threaded structure. The upper end of the threaded rod 61 passes through the swing arm 16, and a turntable 62 is fixedly installed on its top. Rotating the turntable 62 can press or release the swing arm 16 at its bottom through the threaded structure of the threaded rod 61, thereby locking or unlocking the rotation of the swing arm 16.

[0032] Several of the liquid outlet ring tubes 1 are arranged in concentric circles with equal spacing, and the nozzles 6 are symmetrically distributed at equal spacing on the bottom of each liquid outlet ring tube 1.

[0033] The bracket 7 is cross-shaped, and the flexible tubes 3, equidistant from the center of the cross-shaped bracket 7, are connected to the same liquid outlet ring tube 1. The liquid outlet box 4 has a base plate 41, on which a plurality of liquid outlet holes 42 are provided. The plurality of liquid outlet holes 42 are distributed in a cross shape, and a flexible tube 3 is connected to the bottom of each liquid outlet hole 42. The bracket 7 is used to fix the plurality of liquid outlet ring tubes 1 and the flexible tubes 3. The upper and lower ends of the flexible tubes 3 are respectively connected to the liquid outlet box 4 and the bracket 7 through two threaded connection ends with opposite thread directions.

[0034] The liquid discharge control groove 400 is arc-shaped. The distance from the center of several liquid discharge control grooves 400 to the bottom center of the liquid discharge control box 40 increases sequentially, and the length of the liquid discharge control grooves 400 from the bottom center of the liquid discharge control box 40 increases sequentially. The position of the liquid discharge control grooves 400 is adapted to the position of the liquid discharge holes 42. By rotating the handle 50, the nozzle 9 can be rotated relative to the liquid discharge control box 40. This rotation can align the liquid discharge holes 42 at different distances from the center of the bottom plate 41 with the liquid discharge control grooves 400, thereby allowing different liquid discharge rings 1 to discharge liquid, thus achieving the function of adjusting the spraying speed. The rotating connection can achieve rotation limit and rotation or stopping at specific positions through a ball bearing indexing structure, so that each liquid discharge hole 42 can be completely aligned or misaligned with the liquid discharge control groove 400.

[0035] The procedure for using this device is as follows: Adding pesticide solution: Inject an appropriate amount of pesticide and water through the pesticide inlet on the pesticide storage tank, stir well, and then close the inlet to ensure that the pesticide solution mixing ratio meets the crop control requirements.

[0036] Spraying volume adjustment: According to the crop growth stage (such as seedling stage, growth stage) or the severity of pests and diseases, the rotation angle of the liquid control box can be adjusted by rotating the handle on the funnel shell. When the handle is rotated, the liquid control box rotates accordingly, so that the corresponding number of liquid control slots are aligned with the liquid outlet holes at the bottom of the liquid box (such as aligning a single short liquid control slot during the seedling stage and aligning multiple long liquid control slots during the growth stage), thereby controlling the number of connected liquid outlet rings and realizing the adjustment of the spraying volume. During the rotation, the ball bearing indexing structure can achieve limit positioning to ensure that the liquid control slots and liquid outlet holes are accurately aligned.

[0037] Preparation for operation: Push the mobile spraying device to the starting position of the field. According to the crop planting direction and row spacing, rotate the swing arm to adjust the spraying direction. When the swing arm rotates to the target angle, the rotating disc drives the threaded rod to move downward, so that the bottom of the disc presses against the swing arm to lock and fix it. At this time, the synchronous rotation mechanism drives the plate liquid outlet pipe to adjust its direction synchronously with the rotation of the swing arm to ensure that the nozzle faces the operation area.

[0038] Spraying operation: Start the infusion pump. Under the action of the infusion pump, the liquid in the liquid storage tank is delivered to the plate-type liquid outlet pipe through the infusion pipe, and then flows into the liquid outlet box through the liquid outlet control slot of the liquid outlet control box. It then enters the corresponding liquid outlet ring pipe through the liquid outlet hole and hose, and finally is evenly sprayed onto the crop surface from the nozzle. During the operation, push the mobile spraying device forward at a constant speed to maintain a stable spraying speed and ensure that the liquid is evenly covered. If it is necessary to adjust the spraying direction, the turntable can be rotated in the opposite direction to release the swing arm, readjust the angle, and then lock it again.

[0039] Operation complete: Turn off the infusion pump to stop the delivery of the pesticide solution; reverse the swing arm to retract the plate-type dispensing pipe and nozzle onto the mobile spraying device, and lock the swing arm to ensure structural stability during transportation; open the drain port at the bottom of the pesticide storage tank to drain the remaining pesticide solution and clean the tank and infusion pipe. After prolonged use, disassemble the nozzle hose and dispensing ring pipe, clean the nozzle of residual pesticide solution and impurities, and perform regular maintenance to ensure even spraying of the pesticide solution.

[0040] The foregoing description and accompanying drawings fully illustrate embodiments of this application to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operation may vary. Some parts and features of some embodiments may be included or replace parts and features of other embodiments. The embodiments of this application are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from their scope. The scope of this application is limited only by the appended claims.

Claims

1. An agricultural spraying nozzle and an agricultural mobile spraying device, comprising a mobile spraying device (8), a spraying nozzle (9), characterized in that: The mobile pesticide spraying device (8) is fixedly provided with a pesticide liquid storage tank (11), the pesticide liquid storage tank (11) is provided with a liquid delivery pump (12), the liquid delivery pump (12) is connected with a liquid delivery pipe (13), one side of the mobile pesticide spraying device (8) is fixedly provided with a support table (14), the support table (14) is fixedly provided with a support rod (15), the top of the support rod (15) is rotatably provided with a swing arm (16), the bottom of the end of the swing arm (16) away from the support rod (15) is rotatably provided with a plate type liquid outlet pipe (17), the bottom of the plate type liquid outlet pipe (17) is fixedly provided with a plurality of spray heads (9), the swing arm (16) is provided with a synchronous rotating mechanism, the end of the swing arm (16) close to the support rod (15) is provided with a swing locking mechanism, the liquid delivery pipe (13) penetrates through the inside of the swing arm (16) and is connected with the plate type liquid outlet pipe (17), and the inside cavity of the plate type liquid outlet pipe (17) is communicated with the spray heads (9).

2. The agricultural spraying nozzle and agricultural mobile spraying device of claim 1, wherein: The spray head (9) comprises a funnel shell (5), the funnel shell (5) is fixedly provided with a liquid outlet box (4), the bottom of the liquid outlet box (4) is fixedly connected with a plurality of hoses (3), the funnel shell (5) is fixedly provided with a support (7), the bottom of the hose (3) is connected with the support (7), the bottom of the support (7) is fixedly connected with a plurality of liquid outlet ring pipes (1), the liquid outlet ring pipes (1) are communicated with the hoses (3), the bottom of the liquid outlet ring pipes (1) is provided with a plurality of nozzles (6), the funnel shell (5) is provided with a rotating handle (50), the liquid outlet box (4) is rotatably provided with a liquid outlet control box (40), the upper part of the liquid outlet control box (40) is fixedly connected with the bottom of the plate type liquid outlet pipe (17), and the liquid outlet control box (40) is provided with a liquid outlet control groove (400).

3. The agricultural spraying nozzle and agricultural mobile spraying device of claim 1, wherein: The spray head (9) is provided with at least two on the plate type liquid outlet pipe (17).

4. The agricultural spraying nozzle and agricultural mobile spraying device of claim 1, wherein: The pesticide liquid storage tank (11) is provided with a pesticide liquid adding port (110).

5. The agricultural spraying nozzle and agricultural mobile spraying device of claim 1, wherein: The synchronous rotating mechanism comprises a fixed shaft (51) and a rotating shaft (52), the fixed shaft (51) is fixedly connected with the top of the support rod (15), the rotating shaft (52) is rotatably arranged in the swing arm (16), the fixed shaft (51) and the rotating shaft (52) are provided with a synchronous belt (53), and the rotating shaft (52) is fixedly connected with the plate type liquid outlet pipe (17).

6. The agricultural spray nozzle and agricultural mobile spray rig of claim 5, wherein: The swing locking mechanism comprises a threaded rod (61), the threaded rod (61) is arranged in the fixed shaft (51) through a threaded structure, and the top of the threaded rod (61) is fixedly provided with a rotating disc (62) penetrating through the top of the swing arm (16).

7. The agricultural spraying nozzle and agricultural mobile spraying device of claim 1, wherein: A plurality of the liquid outlet ring pipes (1) are arranged in an equidistant concentric circle mode, and the nozzles (6) are distributed in an equidistant circumferential symmetry mode at the bottom of each liquid outlet ring pipe (1).

8. The agricultural spraying nozzle and agricultural mobile spraying device of claim 2, wherein: The support (7) is cross-shaped, the hoses (3) with the same distance from the center of the cross-shaped support (7) are communicated with the same liquid outlet ring (1), the liquid outlet box (4) is provided with a bottom plate (41), a plurality of liquid outlet holes (42) are formed in the bottom plate (41), and the plurality of liquid outlet holes (42) are cross-shapedly distributed; and the bottom of each liquid outlet hole (42) is connected with a hose (3).

9. The agricultural spray nozzle and agricultural mobile spray rig of claim 2, wherein: The liquid outlet control groove (400) is in the shape of a circular arc, the distance from the center of each liquid outlet control groove (400) to the center of the bottom of the liquid outlet control box (40) is sequentially increased, the length of the liquid outlet control groove (400) is sequentially increased from small to large in the order of the distance from the center of the bottom of the liquid outlet control box (40), and the position of the liquid outlet control groove (400) is matched with the position of the liquid outlet hole (42).

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