Tobacco spraying device

Abstract

The utility model provides a tobacco pesticide spraying device, which relates to the technical field of agricultural machinery, and comprises a pesticide spraying machine body, an atomizing spray pipe assembly is arranged on the pesticide spraying machine body, the atomizing spray pipe assembly comprises a fixed elbow fixedly connected to the pesticide spraying machine body, the front end of the fixed elbow is fixedly connected with a corrugated pipe, the front end of the corrugated pipe is fixedly connected with a straight pipe, and the straight pipe is fixedly connected with an atomizing nozzle. An adjusting elbow is rotatably arranged at the tail end of the straight pipe, a spray pipe is fixedly connected to the end, away from the straight pipe, of the adjusting elbow, a liquid medicine pipe is connected between the pesticide sprayer body and the spray pipe and is a hose, a handrail is fixedly arranged on the upper side of the straight pipe, and a fixing knob is arranged at the joint of the adjusting elbow and the straight pipe. According to the utility model, the liquid medicine adhesion rate is obviously improved, the liquid medicine waste on the ground is greatly reduced, and the liquid medicine utilization rate is improved. The height of the armrest can be adjusted to adapt to operation requirements of different heights and adapt to an upper spraying mode and a lower spraying mode, so that the operation comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically a tobacco spraying device. Background Technology

[0002] In the tobacco cultivation industry, pest and disease control is a core element in ensuring yield and quality. Tobacco plants possess unique biological characteristics: their stems can reach 1.2-1.8 meters in height, their leaves are arranged in a spiral pattern, with a single leaf area of ​​0.5-0.8 square meters, and the spacing between upper and lower layers of leaves is small, forming a dense, three-dimensional canopy structure. This unique morphological characteristic places special demands on pesticide spraying techniques—it must achieve uniform deposition of the pesticide solution among the multiple layers of leaves while avoiding the risk of yield reduction due to mechanical damage.

[0003] Conventional devices employ a "vertical spraying from above + airflow compensation" technique. The liquid needs to penetrate 3-4 layers of blades to reach the middle and lower leaf surfaces. Traditional atomizing cones suffer a 60%-70% loss during penetration due to blade obstruction. To overcome the blade layer obstruction, the fan power needs to be increased to over 8kW. However, at this point, the airflow velocity exceeds the critical tolerance value of tobacco leaves (12m / s), resulting in a significant increase in leaf edge tearing rate. Excessive wind speed causes droplet movement trajectory to become uncontrollable, and the liquid ground settling rate of traditional devices is as high as 35%, resulting in a double waste of resources. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a tobacco spraying device, which aims to solve the problems that conventional devices cannot reach the middle and lower leaf surfaces, resulting in large leaf damage and excessive waste of pesticide solution.

[0005] This utility model provides a tobacco spraying device, characterized in that it includes a sprayer body, on which an atomizing spray pipe assembly is provided. The atomizing spray pipe assembly includes a fixed curved pipe fixedly connected to the sprayer body, a corrugated pipe fixedly connected to the front end of the fixed curved pipe, a straight pipe fixedly connected to the front end of the corrugated pipe, an adjusting curved pipe rotatably connected to the end of the straight pipe, and a spray pipe fixedly connected to the end of the adjusting curved pipe away from the straight pipe. A liquid pipe, which is a flexible hose, is connected between the sprayer body and the spray pipe. The liquid pipe runs sequentially along the side wall of the fixed curved pipe, the corrugated pipe, the straight pipe, the adjusting curved pipe, and the spray pipe. A handle is fixedly provided on the upper side of the straight pipe, and a fixed knob is provided at the connection between the adjusting curved pipe and the straight pipe.

[0006] In a preferred embodiment, the bending angle of the adjusting bend is 45-90 degrees.

[0007] In a preferred embodiment, the handrail is configured as a height-adjustable structure via a telescopic tube.

[0008] In a preferred embodiment, a fixing buckle is fixedly provided on the front end side of the straight tube, the liquid medicine tube is fixedly provided inside the fixing buckle, a slip ring is fixedly provided on the rear end side of the straight tube, the liquid medicine tube is slidably provided inside the slip ring, and the liquid medicine tube between the fixing buckle and the slip ring has a reserved length.

[0009] In a preferred embodiment, the liquid medicine pipe is equipped with a flow regulating valve, and the straight pipe is equipped with an air volume regulating valve.

[0010] In a preferred embodiment, the handrail is provided with anti-slip texture.

[0011] In a preferred embodiment, the nozzle includes a bent air outlet head, an atomizing nozzle fixedly mounted on the upper side of the bent air outlet head, the end of the liquid medicine pipe extending into the interior of the atomizing nozzle, a vortex atomizing core rotatably mounted inside the atomizing nozzle, the outlet of the atomizing nozzle being configured as a trumpet mouth, and the outlet position of the bent air outlet head being close to the outlet position of the atomizing nozzle.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention enables bidirectional application of pesticides to the leaves by means of a nozzle angle adjustment system:

[0014] Down spray mode: The spray nozzle is placed below the leaf cluster, and the liquid adheres along the natural growth direction of the leaf veins, solving the technical problem that the liquid cannot reach the middle and lower leaves in the traditional top spraying method, and significantly improving the coverage rate of the spray.

[0015] Top spray mode: restores the traditional spraying method and flexibly adapts to the needs of different growth cycles and planting scenarios.

[0016] This invention significantly improves the adhesion rate of the pesticide solution, greatly reduces waste of pesticide solution on the ground, and enhances the utilization rate of the pesticide solution. The adjustable handle height accommodates the operating needs of different heights and is compatible with both upward and downward spraying modes, improving operating comfort. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the downward spraying mode structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A magnified structural diagram of part A;

[0019] Figure 3 This utility model Figure 1 A schematic diagram of the structure of section B;

[0020] Figure 4 This is a schematic diagram of the top spraying mode structure of this utility model;

[0021] In the diagram: 1- Sprayer body; 2- Atomizing nozzle assembly; 21- Fixed bend; 22- Corrugated pipe; 23- Straight pipe; 24- Adjusting bend; 25- Sprayer; 26- Liquid pipe; 27- Handrail; 28- Fixed knob; 29- Fixed buckle; 210- Slip ring; 211- Flow regulating valve; 212- Air volume regulating valve; 251- Bending air outlet head; 252- Atomizing nozzle; 253- Vortex atomizing core. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown

[0024] A tobacco spraying device includes a sprayer body 1, on which an atomizing nozzle assembly 2 is mounted. The atomizing nozzle assembly 2 includes a fixed bend 21 fixedly connected to the sprayer body 1, a corrugated pipe 22 fixedly connected to the front end of the fixed bend 21, a straight pipe 23 fixedly connected to the front end of the corrugated pipe 22, an adjusting bend 24 rotatably mounted at the end of the straight pipe 23, and a nozzle 25 fixedly connected to the end of the adjusting bend 24 away from the straight pipe 23. A liquid pipe 26, which is a flexible hose, connects the sprayer body 1 and the nozzle 25. The liquid pipe 26 runs sequentially along the side walls of the fixed bend 21, corrugated pipe 22, straight pipe 23, adjusting bend 24, and nozzle 25. A handle 27 is fixedly mounted on the upper side of the straight pipe 23, and a fixing knob 28 is provided at the connection between the adjusting bend 24 and the straight pipe 23. In this invention, the fixed bend 21 serves as a basic support component and is rigidly connected to the sprayer body 1 via a flange structure. The corrugated pipe 22, serving as a flexible transition section, employs a multi-layered composite structure to ensure both bending freedom and pipeline sealing. Its corrugated pitch is optimized to balance flexibility and fatigue resistance. The straight pipe 23 is rotatably connected to the adjusting bend 24, with the angle locked via a fixing knob 28. The operating interface is ergonomically designed. The bending angle of the adjusting bend 24 is 45-90 degrees.

[0025] The handrail 27 is height-adjustable via a telescopic tube. The handrail 27 employs a telescopic structure, with length adjustment achieved through a mechanical locking mechanism. Its surface is covered with anti-slip textures. Changing the position of the nozzle 25 allows for height adjustment to suit ergonomics and facilitate operation.

[0026] A fixing clip 29 is fixedly installed on the front side of the straight tube 23, and the liquid tube 26 is fixedly installed inside the fixing clip 29. A slip ring 210 is fixedly installed on the rear side of the straight tube 23, and the liquid tube 26 is slidably installed inside the slip ring 210. The liquid tube 26 between the fixing clip 29 and the slip ring 210 has a reserved length. The routing path of the liquid tube 26 follows a three-section layout of "fixed-sliding-fixed": the front end is stably installed through the fixing clip 29 with a buffer structure, the middle section is adjusted to adapt to the angle of the nozzle 25 through the slip ring 210, and the end forms a sealed connection with the atomizing component.

[0027] A flow regulating valve 211 is installed on the liquid medicine pipe 26, and an air volume regulating valve 212 is installed on the straight pipe 23.

[0028] The handrail 27 has anti-slip texture.

[0029] The nozzle 25 includes a bent air outlet head 251 and an atomizing nozzle 252 fixedly mounted on the upper side of the bent air outlet head 251. The end of the liquid pipe 26 extends into the interior of the atomizing nozzle 252. A vortex atomizing core 253 is rotatably mounted inside the atomizing nozzle 252. The outlet of the atomizing nozzle 252 is a funnel shape, and the outlet of the bent air outlet head 251 is located close to the outlet of the atomizing nozzle 252. After the liquid is delivered to the vortex atomizing core 253, it forms an atomized cone under the action of airflow. The design of the bent air outlet head 251 creates a specific angle between the airflow direction and the atomization field, and the funnel structure optimizes the droplet distribution range. By adjusting the angle of the nozzle 25, the liquid can be applied from below or above the leaf surface to adapt to different operational needs.

[0030] This invention allows adjustment of the spray nozzle 25 via the bend 24, ensuring that the openings of the atomizing nozzle 252 and the bent air outlet 251 face upwards. The spray nozzle 25 is positioned below the tobacco leaves, allowing spraying from below the leaves. This follows the growth pattern of the tobacco leaves, minimizing damage. The atomized pesticide falls above the leaves, resulting in better spraying effectiveness and reduced pesticide waste. Furthermore, the spray nozzle 25 can also be adjusted via the bend 24 to position the atomizing nozzle 252 and the bent air outlet 251 above the leaves, allowing for both ordinary spraying and top-down application to crops or application to tobacco at different growth stages.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tobacco spraying device, characterized in that, The system includes a sprayer body (1), on which an atomizing nozzle assembly (2) is provided. The atomizing nozzle assembly (2) includes a fixed bend (21) fixedly connected to the sprayer body (1), a corrugated pipe (22) fixedly connected to the front end of the fixed bend (21), a straight pipe (23) fixedly connected to the front end of the corrugated pipe (22), and an adjusting bend (24) rotatably provided at the end of the straight pipe (23). The end of the adjusting bend (24) away from the straight pipe (23) is... A spray pipe (25) is fixedly connected. A liquid pipe (26) is connected between the spray pipe (25) and the sprayer body (1). The liquid pipe (26) is a flexible hose. The liquid pipe (26) runs along the side wall of the fixed bend (21), the corrugated pipe (22), the straight pipe (23), the adjusting bend (24) and the spray pipe (25) in sequence. A handrail (27) is fixedly installed on the upper side of the straight pipe (23). A fixed knob (28) is installed at the connection between the adjusting bend (24) and the straight pipe (23).

2. The tobacco spraying device according to claim 1, characterized in that: The bending angle of the adjusting bend (24) is 45-90 degrees.

3. The tobacco spraying device according to claim 2, characterized in that: The handrail (27) is configured to be height-adjustable via a telescopic tube.

4. A tobacco spraying device according to claim 1, characterized in that: The front end of the straight tube (23) is fixedly provided with a fixing buckle (29), the liquid medicine tube (26) is fixedly provided inside the fixing buckle (29), the rear end of the straight tube (23) is fixedly provided with a slip ring (210), the liquid medicine tube (26) is slidably provided inside the slip ring (210), and the liquid medicine tube (26) between the fixing buckle (29) and the slip ring (210) has a reserved length.

5. A tobacco spraying device according to claim 1, characterized in that: The liquid medicine pipe (26) is equipped with a flow regulating valve (211), and the straight pipe (23) is equipped with an air volume regulating valve (212).

6. A tobacco spraying device according to claim 1, characterized in that: The handrail (27) is provided with anti-slip texture.

7. A tobacco spraying device according to claim 1, characterized in that: The nozzle (25) includes a bent air outlet head (251) and an atomizing nozzle (252) fixedly installed on the upper side of the bent air outlet head (251). The end of the liquid medicine pipe (26) extends into the interior of the atomizing nozzle (252). A vortex atomizing core (253) is rotatably installed inside the atomizing nozzle (252). The outlet of the atomizing nozzle (252) is set as a trumpet mouth. The outlet position of the bent air outlet head (251) is close to the outlet position of the atomizing nozzle (252).

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