A pesticide spraying device and a row spraying machine

Abstract

The present application belongs to the technical field of greenhouse pesticide application, and discloses a pesticide spraying device and an inter-row pesticide spraying machine, wherein the pesticide spraying device comprises a base plate, a rotating platform, a movable platform, a spraying rod assembly, a posture adjusting assembly and a detection member; the base plate is used for being connected with the pesticide spraying machine; the rotating platform is rotationally arranged on the base plate in the horizontal direction; the movable platform is movably arranged on the rotating platform; the posture adjusting assembly is arranged between the rotating platform and the movable platform; the detection member detects the state of the spraying rod assembly; when the spraying rod assembly deviates from the preset angle, the posture of the movable platform can be adjusted through the angle adjusting mechanism of the posture adjusting assembly and the rotating platform, and the posture of the spraying rod assembly is further adjusted in real time, so that the spraying rod is always at the preset angle with the crop canopy, the problem that the spraying rod is inclined due to the unevenness of the greenhouse ground in actual pesticide application, and further causes uneven spraying or even missed spraying is solved, and the deposition distribution uniformity and the fog drop penetration of the pesticide spraying are improved.

Description

Technical Field

[0001] This invention relates to the field of greenhouse pesticide application technology, and in particular to a spraying device and a row sprayer. Background Technology

[0002] Greenhouses, as the main mode of winter vegetable cultivation, play a significant role in ensuring winter vegetable supply and increasing farmers' income. Among these practices, the trellis cultivation technique allows the vines of crops such as cucumbers and tomatoes to grow vertically towards the sky, effectively reducing the land area occupied by each plant and thus significantly increasing the number of plants per unit and yield. However, due to the enclosed space and insufficient light in greenhouses, coupled with the dense planting and limited working space of trellis cultivation, and the tall, dense canopy of the plants, it is difficult for pesticide droplets to penetrate deep into the crop canopy and the underside of the leaves when spraying pesticides using backpack sprayers or mist sprayers. This results in poor droplet distribution, low pesticide utilization, and severely impacts the effectiveness of pesticide control.

[0003] In order to spray pesticides deep into the crop canopy between rows, researchers have designed a sprayer for trellised crops with vertical spray booms. The sprayer can drive the vertical spray booms into the rows to spray the trellised crops on both sides.

[0004] However, during actual pesticide application, uneven ground can cause the spray boom to tilt and deviate from the preset spray angle, resulting in uneven spraying or even missed spraying. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a spraying device and a row sprayer, which aims to solve the problem that the unevenness of the greenhouse ground in actual spraying operations can cause the spray bar to tilt, resulting in uneven spraying or even missed spraying, thereby improving the uniformity of spraying deposition distribution and droplet penetration.

[0006] The present invention provides a spraying device, including a spray bar assembly, and further comprising:

[0007] Rotating platform;

[0008] A movable platform is movably positioned above a rotating platform, with one end of the spray bar assembly vertically fixed to the movable platform;

[0009] An attitude adjustment assembly, disposed between a rotating platform and a moving platform, includes: a support rod, the first end of which is fixed to the middle of the rotating platform and the second end of which is movably connected to the moving platform; at least two angle adjustment mechanisms, disposed around the periphery of the rotating platform, wherein the output end of the angle adjustment mechanism is connected to the moving platform and is used to drive the moving platform and the spray bar assembly to rotate up and down around the second end of the support rod;

[0010] The detection element is installed on the moving platform or the spray bar assembly to detect the horizontal state of the moving platform or the vertical state of the spray bar assembly.

[0011] Preferably, the attitude adjustment component includes two angle adjustment mechanisms, which are arranged perpendicularly to each other in the horizontal direction.

[0012] Preferably, the angle adjustment mechanism includes:

[0013] The driving component is fixedly mounted on the rotating platform;

[0014] The drive arm has one end connected to the output end of the drive component and the other end connected to the moving platform in a universal joint.

[0015] Preferably, the drive arm includes a swing arm and a connecting rod. The swing arm and the output shaft of the drive component are arranged perpendicular to each other. One end of the swing arm is fixedly connected to the output shaft of the drive component, and the other end is hinged to the connecting rod. The end of the connecting rod away from the swing arm is universally connected to the moving platform.

[0016] Preferably, the bottom of the rotating platform is provided with a chassis, and a transmission disc and a transmission auxiliary disc are provided between the chassis and the rotating platform. The transmission disc and the transmission auxiliary disc are arranged opposite to each other and ball bearings are provided between them. The transmission disc is fixedly connected to the chassis, and the transmission auxiliary disc is fixedly connected to the rotating platform. A rotating drive unit is fixed on the rotating platform, and the output end of the rotating drive unit passes through the rotating platform and is connected to the chassis through a transmission shaft.

[0017] Preferably, the spray bar assembly includes a spray bar and spray heads. A fixed bracket is provided on the moving platform. The fixed bracket is fixedly connected to the moving platform. The fixed bracket has a mounting hole in a direction perpendicular to the moving platform. The spray bar passes through the mounting hole. Multiple spray heads are evenly distributed on the spray bar along its length direction. The multiple spray heads are evenly distributed on both sides of the spray bar along its axis.

[0018] Preferably, the angle between the nozzle and the spray bar is set in the range of 30° to 60°.

[0019] Preferably, the spraying device further includes a controller, which is communicatively connected to the detection element, the drive element, and the rotary drive unit.

[0020] A row spraying machine includes a spraying device and a traveling device. The spraying device is mounted on the traveling device. The machine also includes a spraying pump, a pesticide pipe, and a pesticide tank. The pesticide tank is fixed on the traveling device. The inlet of the spraying pump is connected to the pesticide tank, and the outlet is connected to the spray bar via the pesticide pipe.

[0021] Compared with the prior art, the spraying device and inter-row sprayer provided by the present invention have the following advantages:

[0022] 1. The spraying device provided by the present invention detects the state of the spray boom assembly through a detection component. When the spray boom assembly deviates from the preset angle, the attitude of the moving platform can be adjusted by the angle adjustment mechanism of the attitude adjustment component and the rotating platform, thereby adjusting the attitude of the spray boom assembly in real time so that the spray boom is always at the preset angle with the crop canopy. This alleviates the problem in the prior art where the spray boom shakes and vibrates due to the unevenness of the greenhouse ground during actual spraying operations, deviating from the preset spraying angle, which leads to uneven spraying or even missed spraying. This improves the uniformity of spray deposition distribution and droplet penetration.

[0023] 2. The inter-row sprayer provided by the present invention uses a walking device to drive the spraying device to extend into the inter-row to automatically spray crops. By monitoring and adjusting the posture of the spray boom in real time, it ensures that the spray boom can run stably and vertically between the crop rows, further improving the uniformity of spray deposition distribution and droplet penetration. Attached Figure Description

[0024] Figure 1 This is an overall structural diagram of the spraying device provided by the present invention;

[0025] Figure 2 This is a schematic diagram of the attitude adjustment component in the spraying device provided by the present invention;

[0026] Figure 3 This is a schematic diagram of the spray boom assembly in the spraying device provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the rotating platform and rotating disk in the spraying device provided by the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Chassis; 200. Rotating platform; 210. Rotating drive unit; 211. Drive shaft; 220. Drive disc; 300. Moving platform; 400. Spray bar assembly; 410. Nozzle; 420. Spray bar; 430. Fixed bracket; 500. Attitude adjustment assembly; 510. Support rod; 520. Angle adjustment mechanism; 521. Drive component; 522. Drive arm. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1 to 4 The specific embodiments of the present invention will be described in detail, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0031] Example 1

[0032] like Figure 1As shown, the spraying device provided by the present invention includes a chassis 100, a rotating platform 200, a moving platform 300, a spray boom assembly 400, a posture adjustment assembly 500, and a detection component. The chassis 100 is used to connect to a sprayer. The rotating platform 200 is rotatably mounted on the chassis 100 in a horizontal direction. The moving platform 300 is movably mounted on the rotating platform 200. One end of the spray boom assembly 400 is vertically fixed to the moving platform 300, and a plurality of nozzles 410 are evenly arranged on the spray boom assembly 400 for spraying pesticides onto crops. An attitude adjustment assembly 500 is disposed between the rotating platform 200 and the moving platform 300. The attitude adjustment assembly 500 includes a support rod 510 and at least two angle adjustment mechanisms 520. The first end of the support rod 510 is fixed to the middle of the rotating platform 200, and the second end of the support rod 510 is movably connected to the moving platform 300. The angle adjustment mechanisms 520 are disposed on the periphery of the rotating platform 200 and are connected to the moving platform 300 to drive the moving platform 300 and the spray bar 420 to rotate around the second end of the support rod 510. A detection element is disposed on the moving platform 300 or the spray bar assembly 400. The detection element is used to detect the horizontal state of the moving platform 300 and / or to detect the vertical state of the spray bar assembly 400. The data output terminal of the detection element is communicatively connected to the control terminal of the angle adjustment mechanism 520.

[0033] That is, the spraying device provided by the present invention detects the state of the spray boom assembly 400 through a detection component. When the spray boom assembly 400 deviates from the preset angle, the attitude of the moving platform 300 can be adjusted by the angle adjustment mechanism 520 of the attitude adjustment component 500 and the rotating platform 200, thereby adjusting the attitude of the spray boom assembly 400 in real time so that the spray boom 420 is always at the preset angle with the crop canopy. This alleviates the problem in the prior art where the unevenness of the greenhouse ground causes the spray boom 420 to deviate from the preset angle, resulting in uneven spraying or even missed spraying. This improves the uniformity of spray deposition distribution and droplet penetration.

[0034] Specifically, the chassis 100 can be a flat plate made of stainless steel or other rigid materials, and its shape can be circular or square. The chassis 100 is connected and fixed to the traveling device of the sprayer by bolts. The rotating platform 200 can be a metal plate, parallel to the chassis 100, and rotatably connected to the chassis 100. The spray boom assembly 400, the moving platform 300, and the attitude adjustment assembly 500 are all mounted on the rotating platform 200. Thus, the direction of the spray boom assembly 400 relative to the chassis 100 and the traveling device of the sprayer can be adjusted by rotating the rotating platform 200, so as to adjust the spraying direction of the nozzle 410 on the spray boom assembly 400. In this embodiment, the chassis 100 and the rotating platform 200 are chosen to be circular to reduce the rotation radius, reduce the overall space occupied by the spraying device, and ensure that the platform remains stable when rotating.

[0035] The moving platform 300 is movably mounted on the rotating platform 200 via an attitude adjustment assembly 500. The attitude adjustment assembly 500 consists of a support rod 510 and an angle adjustment mechanism 520. The first end of the support rod 510 is fixed to the center of the rotating platform 200 via a support frame or bolts. The support rod 510 is positioned perpendicular to the rotating platform 200, while the second end is connected to the moving platform 300 via a universal joint. This allows the moving platform 300 to move around the support end of the support rod 510, facilitating the adjustment of the attitude of the moving platform 300 and the spray boom assembly 400. The angle adjustment mechanism 520 is fixed to the rotating platform 200 with bolts and connected to the moving platform 300 via a universal joint. An angle adjustment mechanism 520 is set around the rotating platform 200 and the moving platform 300. The moving platform 300 can be rotated around the second end of the support rod 510 by the angle adjustment mechanism 520, thereby adjusting the angle of the moving platform 300 and thus the angle of the spray bar 420 relative to the crop plant.

[0036] The spray boom assembly 400 can be made of stainless steel pipe and is vertically fixed to the center of the moving platform 300 by bolts. Multiple nozzles 410 are evenly arranged on both sides of the spray boom assembly 400, so that the spraying device can spray the crop plants on both sides at the same time when it extends into the crop rows with the sprayer, thereby improving the spraying efficiency.

[0037] The detection component is specifically configured as a gyroscope, which is fixed to the moving platform 300 by bolts and moves synchronously with the moving platform 300 to detect whether the moving platform 300 is horizontal. This allows the attitude adjustment component 500 to adjust the attitude of the moving platform 300 in real time, thereby ensuring that the spray boom assembly 400 is vertically positioned among the crop plants. Alternatively, the detection component can also be fixed to the spray boom assembly 400 by bolts to provide real-time adjustment data to the attitude adjustment component 500.

[0038] like Figure 2 As shown, the angle adjustment mechanism 520 includes a drive component 521 and a drive arm 522. The drive component 521 is fixed to the rotating platform 200. One end of the drive arm 522 is connected to the drive component 521, and the other end of the drive arm 522 is connected to the moving platform 300 via a universal joint. The drive component 521 is specifically configured as a stepper motor, which is fixed to the moving platform 300 by a mounting bracket. The drive arm 522 can be composed of a swing arm and a connecting rod. The swing arm is connected to the output shaft of the stepper motor, one end of the connecting rod is connected to the swing arm via a connecting shaft, and the other end of the connecting rod is connected to the moving platform 300 via a universal joint. Thus, the stepper motor can drive the swing arm to rotate, thereby driving the connecting rod to rotate the moving platform 300 in conjunction with the support rod 510, thereby completing the attitude adjustment of the moving platform 300 and the spray bar assembly 400.

[0039] Furthermore, the attitude adjustment assembly 500 includes two angle adjustment mechanisms 520, which are arranged perpendicularly to each other in the horizontal direction. Specifically, two drive members 521 are respectively arranged at 90° intervals around the periphery of the rotating platform 200, and the swing directions of the two drive arms 522 are arranged perpendicularly to each other. This allows the two angle adjustment mechanisms 520 to adjust the attitude of the moving platform 300 in both the horizontal and vertical degrees of freedom without interference, thereby allowing the spray boom assembly 400 to rotate in any direction around the end fixed to the moving platform 300. When the spraying device is affected by the actual operating conditions of the greenhouse and becomes oblique or deflected, the attitude of the moving platform 300 and the spray boom assembly 400 can be adjusted in real time by the angle adjustment mechanism 520 to ensure that the spray boom assembly 400 can be vertically positioned between the crop plants.

[0040] Alternatively, the attitude adjustment assembly 500 includes at least three angle adjustment mechanisms 520, which are evenly arranged circumferentially along the support rod 510. In this embodiment, three angle adjustment mechanisms 520 are provided. The three angle adjustment mechanisms 520 are arranged at 120° intervals around the periphery of the rotating platform 200, with the support rod 510 as their center. This allows for more precise adjustment of the horizontal state of the moving platform 300 through the cooperation of the three angle adjustment mechanisms 520, improving the efficiency and accuracy of horizontal attitude adjustment.

[0041] Preferably, the spraying device further includes a waterproof cover, which is fitted over the platform 300 and the rotating platform 200. One end of the waterproof cover is connected to the moving platform 300, and the other end is connected to the rotating platform 200. The waterproof cover can be made of flexible waterproof materials such as plastic or rubber sheeting. The top of the waterproof cover is bonded to the moving platform 300, and its bottom is bonded to the rotating platform 200, and it is arranged around both the moving platform 300 and the rotating platform 200. This seals the space between the moving platform 300 and the rotating platform 200, preventing pesticide from diffusing between them and causing moisture damage or even short circuits in components such as the motor and detection devices, thus improving the safety of the spraying device during use.

[0042] like Figure 3 As shown, the spray bar assembly 400 is also provided with a fixed bracket 430 and a spray bar 420. The fixed bracket 430 is fixed on the moving platform 300. The fixed bracket 430 is provided with mounting holes along the direction perpendicular to the moving platform 300. The spray bar 420 passes through the mounting holes. The nozzles 410 are evenly distributed on both sides of the spray bar 420 along the axis of the spray bar 420.

[0043] Specifically, the fixed bracket 430 is composed of two identical triangular brackets, fixed to the moving platform 300 in a direction perpendicular to the moving platform 300. Each triangular bracket consists of two opposing fixed frames, the bottom of which is bolted to the moving platform 300, while the other end of each frame has a semi-circular groove. The tops of the two fixed frames are bolted together so that the two semi-circular grooves mate to form mounting holes. The two triangular brackets, one larger and one smaller, are arranged perpendicularly, ensuring that the two mounting holes are coaxial, allowing the spray bar 420 to be inserted and fixed into the mounting holes.

[0044] The spray boom 420 can be made of stainless steel tubing, assembled from multiple branch pipes, with a hollow interior to allow the pesticide solution to flow through. Each branch pipe has an outlet on both sides, and the nozzle 410 is fixed to the outlet via a threaded connection. This allows for precise spraying of crops by controlling the number of branch pipes to adjust the height of the spray boom 420 and the number of nozzles 410. A sealing gasket is placed between the outlet and the nozzle 410 to prevent pesticide leakage and insufficient spray pressure due to poor sealing at the nozzle 410 connection.

[0045] Preferably, each branch pipe is equipped with a solenoid valve and a pressure gauge. The pressure gauge can detect the pressure of the nozzle 410, thereby controlling the amount of pesticide sprayed by the nozzle 410. The solenoid valve can control the opening and closing of the branch pipe and the flow rate, so as to automatically control whether the nozzle 410 sprays pesticide and the flow rate of the sprayed liquid, thereby controlling the amount of pesticide sprayed more precisely, improving the efficiency of pesticide spraying and reducing pesticide waste.

[0046] Furthermore, the angle between the nozzle 410 and the spray bar 420 is set to 30° to 60°. Specifically, the angle between the branch pipe and the outlet is set to 30° to 60°, that is, the angle between the nozzle 410 and the spray bar 420 is set to 30° to 60°. In this embodiment, the angle between the nozzle 410 and the spray bar 420 is set to 30°, which allows the nozzle 410 to spray pesticides obliquely upwards, enabling the pesticides to adhere more to the undersides of plant leaves that are more susceptible to pests and diseases, thereby improving the effectiveness of pesticide use.

[0047] like Figure 4 As shown, the spraying device also includes a rotary drive unit 210 and a transmission disk 220. The rotary drive unit 210 is disposed on the rotary platform 200 and is connected to the transmission disk 220 for transmission. The transmission disk 220 is rotatably disposed at the bottom of the rotary platform 200 and is connected to the chassis 100.

[0048] Specifically, the rotary drive unit 210 is configured as a stepper motor, fixed to the top of the rotary platform 200 by a mounting bracket and bolts. A through hole is provided at the center of the rotary platform 200, through which the output shaft of the rotary drive unit 210 passes and is connected to the transmission disk 220 via a transmission shaft 211. The transmission disk 220 is specifically configured as a disc and is bolted to the chassis 100. Thus, the rotary drive unit 521 can drive the rotary platform 200 to rotate relative to the chassis 100. A transmission sub-disc is also provided between the transmission disk 220 and the rotary platform 200, opposite to the transmission disk 220. Multiple ball bearings are arranged between the transmission sub-disc and the transmission disk 220 to reduce friction between them and improve transmission efficiency.

[0049] Furthermore, the spraying device also includes a controller, which is communicatively connected to the detection element, the drive element 521, and the rotary drive unit 210.

[0050] Specifically, the controller can be fixed on the rotating platform 200 and connected to the control system of the inter-row sprayer. It collects the attitude data of the spray bar assembly 400 in real time through the detection component, and adjusts the attitude of the spray bar assembly 400 through the drive component 521 and the rotation drive component 521 respectively, so as to ensure that the nozzle 410 can operate stably between the crop plants and improve the spraying effect.

[0051] Usage and working principle

[0052] The spraying device provided in this embodiment detects the state of the spray boom assembly 400 through a detection device during use. When the spray boom assembly 400 deviates from the preset angle, the controller controls the stepper motor to drive the swing arm to rotate, which in turn drives the connecting rod and the support rod 510 to rotate the moving platform 300. This completes the attitude adjustment of the moving platform 300 and the spray boom assembly 400, so that the spray boom 420 is always at the preset angle with the crop canopy. This alleviates the technical problem in the prior art where the angle of the spray boom 420 deviates due to the unevenness of the greenhouse ground during actual spraying operations.

[0053] Example 2

[0054] The present invention also provides an inter-row sprayer, including a spraying device and a traveling device. The spraying device is mounted on the traveling device, which can drive the spraying device to extend into the inter-rows of the crop.

[0055] That is, the inter-row sprayer provided by the present invention drives the spraying device to extend into the inter-row to automatically spray the crops. By monitoring and adjusting the posture of 420 in real time, it ensures that the spray boom 420 can run stably and vertically between the crop rows, thereby improving the uniformity of spray deposition distribution and droplet penetration.

[0056] Furthermore, the inter-row sprayer also includes a spray pump, a spray pipe, and a spray tank. The spray tank is fixed to the walking device. The inlet of the spray pump is connected to the spray tank, and the outlet is connected to the spray boom 420 through the spray pipe. Thus, the spray pump can deliver the pesticide solution to the spray boom 420 for precise spraying of crops on both sides of the spray boom 420.

[0057] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A spraying device, comprising a spray bar assembly (400), characterized in that, Also includes: Rotating platform (200); A movable platform (300) is movably disposed above a rotating platform (200), and one end of the spray bar assembly (400) is vertically fixed on the movable platform (300); An attitude adjustment assembly (500) is disposed between a rotating platform (200) and a moving platform (300). The attitude adjustment assembly (500) includes: a support rod (510), the first end of which is fixed to the middle of the rotating platform (200), and the second end of which is movably connected to the moving platform (300); at least two angle adjustment mechanisms (520) are disposed on the periphery of the rotating platform (200), and the output end of the angle adjustment mechanism (520) is connected to the moving platform (300) for driving the moving platform (300) and the spray bar assembly (400) to rotate up and down around the second end of the support rod (510). The detection element is set on the moving platform (300) or the spray bar assembly (400) to detect the horizontal state of the moving platform (300) or the vertical state of the spray bar assembly (400); The angle adjustment mechanism (520) includes: a drive member (521), which is fixedly mounted on the rotating platform (200); and a drive arm (522), one end of which is connected to the output end of the drive member (521) and the other end of which is universally connected to the moving platform (300). The drive arm (522) includes a swing arm and a connecting rod. The swing arm and the output shaft of the drive component (521) are arranged perpendicular to each other. One end of the swing arm is fixedly connected to the output shaft of the drive component (521), and the other end is hinged to a connecting rod. The end of the connecting rod away from the swing arm is universally connected to the moving platform (300). The bottom of the rotating platform (200) is provided with a chassis (100). A transmission disk (220) and a transmission auxiliary disk are provided between the chassis (100) and the rotating platform (200). The transmission disk (220) and the transmission auxiliary disk are arranged opposite to each other, and ball bearings are provided between them. The transmission disk (220) is fixedly connected to the chassis (100), and the transmission auxiliary disk is fixedly connected to the rotating platform (200). A rotating drive unit (210) is fixed on the rotating platform (200). The output end of the rotating drive unit (210) passes through the rotating platform (200) and is connected to the chassis (100) through a transmission shaft (211). The spray bar assembly (400) includes a spray bar (420) and a nozzle (410). A fixed bracket (430) is provided on the moving platform (300). The fixed bracket (430) is fixedly connected to the moving platform (300). The fixed bracket (430) has a mounting hole in a direction perpendicular to the moving platform (300). The spray bar (420) passes through the mounting hole. Multiple nozzles (410) are evenly distributed on the spray bar (420) along its length direction. The multiple nozzles (410) are evenly distributed on both sides of the spray bar (420) along the axis of the spray bar (420).

2. The spraying device as described in claim 1, characterized in that, The attitude adjustment component (500) includes two angle adjustment mechanisms (520), which are arranged perpendicular to each other in the horizontal direction.

3. The spraying device as described in claim 1, characterized in that, The angle between the nozzle (410) and the spray bar (420) is set in the range of 30° to 60°.

4. The spraying device as described in claim 1, characterized in that, The spraying device also includes a controller, which is communicatively connected to the detection element, the drive element (521) and the rotary drive unit (210).

5. A row-to-row sprayer, characterized in that, The spraying device includes any one of claims 1-4, and further includes a walking device. The spraying device is mounted on the walking device, and also includes a spraying pump, a pesticide pipe and a pesticide tank. The pesticide tank is fixed on the walking device. The inlet of the spraying pump is connected to the pesticide tank, and the outlet is connected to the spray bar (420) through the pesticide pipe.

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