A tobacco leaf sunscald protection agent spraying device

Abstract

The utility model provides a kind of tobacco day burning protective agent spraying device, belong to planting technology field, the tobacco day burning protective agent spraying device includes pesticide application barrel, pesticide application barrel is connected infusion hose by liquid supply pump, and infusion hose output end is connected with sprayer;Sprayer includes first movable rod and second movable rod, and the input interface of first movable rod and second movable rod is connected with a infusion hose respectively, and the output end of first movable rod and second movable rod is provided with the opposite spray head;First movable rod and second movable rod are movably connected by connecting mechanism, and sprayer is close to the side of infusion hose connection and is provided with gripping portion;Connecting mechanism includes the connecting pin of the side position of first movable rod close to gripping portion, and second movable rod is movably connected with connecting pin by pin shaft in relative position;The utility model can solve the problem that existing tobacco day burning protective agent spraying device is difficult to meet stable covering the front and back of leaf, leading to the problem of poor utilization of protective agent.

Description

Technical Field

[0001] This utility model belongs to the field of planting technology, specifically, it relates to a tobacco leaf sunscald protectant spraying device. Background Technology

[0002] Flue-cured tobacco is an important economic crop in my country, and leaf quality directly determines the yield. Sunburn is a frequent disaster in tobacco fields. Under high temperature and strong light, tobacco leaves are prone to scorching and necrotic spots, leading to a decline in grade or even scrapping, resulting in yield reductions of over 20%. Spraying sunburn protectants requires even coverage of the leaf surface to form a complete protective film to achieve the best control effect. Therefore, efficient spraying devices adapted for tobacco field operations have become a core necessity for large-scale planting, with broad market application prospects.

[0003] Current spraying devices have the following drawbacks: Sunscald protectants need to be sprayed evenly on both sides of the tobacco leaves, especially the upper surface, which is easily scalded by sunlight. The lower surface, however, is susceptible to sunburn due to prolonged folding caused by wind. Traditional single-nozzle handheld applicators require repeated leaf flipping or nozzle angle adjustments to achieve double-sided application, resulting in low efficiency. A single person can only work on less than 3 acres per day, and frequent operation easily damages delicate leaves. Some improved automatic spraying devices have a fixed structure, which cannot adapt to the varying leaf sizes from seedling to vigorous growth stages, leading to problems such as missed spraying of small leaves and uneven application to large leaves. Therefore, existing spraying devices cannot consistently cover both sides of the tobacco leaves to ensure adequate sunscald protection, resulting in poor protectant utilization. These problems significantly reduce the protective effect of existing spraying devices. Utility Model Content

[0004] In view of this, the present invention provides a tobacco sunscald protectant spraying device, which can solve the problem that existing tobacco sunscald protectant spraying devices are unable to stably cover both sides of the leaves, resulting in poor utilization of the protectant.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a tobacco sunscald protectant spraying device, including a spraying cylinder, which is connected to an infusion hose via a liquid supply pump. The output end of the infusion hose is connected to a sprayer. The sprayer includes a first movable rod and a second movable rod, the input interfaces of which are respectively connected to an infusion hose. The output ends of the first and second movable rods are provided with opposing nozzles. The first and second movable rods are movably connected by a connecting mechanism. A gripping part is provided on the side of the sprayer near the connection with the infusion hose.

[0007] The technical effects of the tobacco sunscald protectant spraying device provided by this utility model are as follows: By designing opposing sprayers, it breaks the limitations of traditional single-nozzle single-sided spraying, and is especially suitable for double-sided sunscald protection of flue-cured tobacco leaves. The spraying gap can be controlled according to different leaf sizes by adjusting the movement. By simultaneously aiming the two nozzles at the front and back of the same leaf, double-sided spraying can be completed in one operation, reducing spraying time and improving efficiency.

[0008] Based on the above technical solution, the tobacco leaf sunscald protectant spraying device of this utility model can be further improved as follows:

[0009] The connecting mechanism includes a connecting pin located on the side of the first movable rod near the grip, and a second movable rod movably connected to the connecting pin via a pin shaft to achieve the opening and closing action.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the combination of connecting pin and pin shaft enables flexible adjustment of the movable rod, keeping the opening and closing action smooth and without jamming; the smooth opening and closing action can reduce the operating resistance during application, allowing operators to work quickly and continuously, avoiding missed spraying due to connection jamming, and ensuring the continuity of double-sided application.

[0011] Furthermore, both the first and second movable rods have infusion channels inside, with one end of the infusion channel connected to the infusion hose and the other end connected to the nozzle.

[0012] The beneficial effects of adopting the above-mentioned improvement scheme are: the direct delivery of the drug solution is achieved through the internal infusion channel, reducing the risk of entanglement of the external pipeline.

[0013] Furthermore, the first and second movable rods are provided with tilting sections at the ends near the nozzle, which are inclined inwards to make the nozzles apply the pesticide in opposite directions, so as to apply the pesticide to both sides of the same leaf.

[0014] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by designing the tilting part, the nozzle is tilted inward to form a clamping spraying angle, ensuring that the liquid is accurately sprayed onto both sides of the leaf; avoiding splashing of liquid outward, improving the utilization rate of the agent, and reducing ineffective spraying of the surrounding area.

[0015] Furthermore, the angle range of the inclined section is 90°~160°.

[0016] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by adapting the angle range, the sprayer can adjust the opening and closing angle for different leaves, ensuring that within a certain opening and closing range, the nozzle can maintain the optimal spraying distance of 5~10cm with the leaf surface. At the same time, by limiting the bending angle, the flow resistance of the liquid in the infusion channel can be reduced, and the output of the liquid can be accelerated.

[0017] Furthermore, each individual infusion tubing is equipped with a flow rate regulator to adjust the drug delivery rate.

[0018] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the flow rate of the two movable rods can be controlled independently through an independent flow rate regulator, which can be adapted to the absorption needs of the front and back of the blades; during use, the flow rate can be adjusted according to the concentration of the protective agent and the condition of the blades to avoid excessive dripping or insufficient coverage.

[0019] Furthermore, the grip section features an arc-shaped hollow handle structure for easy gripping and opening / closing.

[0020] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the arc structure fits the curvature of the hand, making it less tiring to operate for a long time; the grip position makes it easier for the fingers to exert force to control the opening and closing of the moving rod, reducing the difficulty of operation.

[0021] Furthermore, the outer surface of the grip is provided with an anti-slip sleeve, and the surface of the anti-slip sleeve is provided with strip-shaped raised textures.

[0022] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the anti-slip sleeve increases the friction between the palm and the grip, preventing the hand from slipping when applying medicine; the raised strip pattern further enhances the anti-slip effect and improves the grip feel.

[0023] Furthermore, a protrusion is provided on one side of the connecting pin, and an arc-shaped guide groove is provided on the surface of the protrusion. A guide post is fixedly provided on the second movable rod, and the guide post moves along the inside of the arc-shaped guide groove to limit the opening and closing angle of the sprayer.

[0024] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting the arc-shaped guide groove, the maximum opening and closing angle and the minimum closing angle of the movable rod are limited; by the guide column moving along the groove, the opening and closing action is made smoother, and a certain application gap is maintained at the minimum closing angle, which makes it convenient for the operator to hold the application at a fixed distance without repeated opening and closing.

[0025] Furthermore, the application tube has a square backpack structure.

[0026] The beneficial effects of adopting the above-mentioned improvement scheme are: the square backpack structure makes it easy for operators to carry, and does not affect field movement and sprayer operation.

[0027] Compared with existing technologies, the beneficial effects of the tobacco sunscald protectant spraying device provided by this utility model are as follows: This device completely solves the core problem that traditional spraying devices cannot efficiently achieve double-sided application of pesticides to tobacco leaves; through the dual movable rods and opposing nozzles combined with the movable connecting mechanism, it breaks the limitation of single nozzle single-sided application, allowing application to both sides of the leaves in one operation, thus improving work efficiency. The tilted part tilts the inner side of the nozzle to form a clamping application angle, which, combined with the 90°~160° bending angle range, is suitable for the leaf size of flue-cured tobacco throughout its entire growth cycle, avoiding pesticide splashing and increasing the pesticide utilization rate to over 85%, while also preventing leaf damage. The independent flow rate regulator can precisely control the amount of pesticide applied based on the adsorption differences between the front and back sides of the leaves, ensuring uniform coverage of the protective film. The arc-shaped anti-slip grip and guide structure, combined with the backpack-style application cylinder design, significantly reduce operator fatigue and reduce the missed spray rate to below 5%; this solution improves the control effect of tobacco sunscald and significantly reduces the scorch rate. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of a tobacco leaf sunscald protectant spraying device;

[0030] Figure 2 A schematic diagram of a sprayer for a tobacco sunscald protectant application device;

[0031] Figure 3 Top view of the sprayer;

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 10. Application tube; 11. Infusion hose; 12. Sprayer; 13. First movable rod; 14. Second movable rod; 15. Nozzle; 16. Grip; 17. Connecting pin; 18. Pin shaft; 19. Inclined part; 20. Flow rate regulator; 21. Anti-slip sleeve; 22. Arc-shaped guide groove. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0035] like Figure 1-3The image shows an embodiment of a tobacco sunscald protectant spraying device provided by this utility model. In this embodiment, it includes a spraying cylinder 10, which is connected to an infusion hose 11 via a liquid supply pump. The output end of the infusion hose is connected to a sprayer 12. The sprayer includes a first movable rod 13 and a second movable rod 14. The input interfaces of the first and second movable rods are respectively connected to an infusion hose. The output ends of the first and second movable rods are provided with opposing nozzles 15. The first and second movable rods are movably connected by a connecting mechanism. A gripping part 16 is provided on the side of the sprayer near the infusion hose connection.

[0036] In the above technical solution, the connecting mechanism includes a connecting pin 17 located on the side of the first movable rod near the grip, and the second movable rod is movably connected to the connecting pin via a pin 18 to realize the opening and closing action.

[0037] Furthermore, in the above technical solution, both the first movable rod and the second movable rod have infusion channels inside, one end of which is connected to the infusion hose and the other end is connected to the nozzle.

[0038] Furthermore, in the above technical solution, the first movable rod and the second movable rod are provided with an inclined section 19 at the end near the nozzle. The inclined section is tilted inward to make the nozzles apply the medicine in opposite directions, so as to apply the medicine to the front and back of the same leaf.

[0039] The inner tilt of the nozzles allows the spray direction of the two nozzles to be precisely aimed at the center area of ​​the front and back of the blades. The atomized liquid can cover the entire blade surface from bottom to top, solving the problem of nozzles facing each other but not being able to spray the blades.

[0040] Furthermore, in the above technical solution, the angle range of the tilting part is 90°~160°.

[0041] Furthermore, in the above technical solution, each individual infusion tubing is equipped with a flow rate regulator 20 for adjusting the drug delivery flow rate.

[0042] The wax layer on the front and back of flue-cured tobacco leaves has different thicknesses, resulting in varying adsorption capacities for pesticides. The wax layer on the back is thinner, requiring less pesticide to cover it, while the wax layer on the front is thicker, requiring slightly more pesticide. This solution allows for independent flow rate adjustment, enabling the setting of appropriate pesticide output for each side of the leaf. This ensures a uniform protective film is formed on both sides, resolving the issue of insufficient pesticide on one side and waste on the other due to uniform flow rate.

[0043] Furthermore, in the above technical solution, the grip part has an arc-shaped hollow grip structure, which is used to facilitate gripping and opening / closing.

[0044] Furthermore, in the above technical solution, the outer surface of the grip is provided with an anti-slip sleeve 21, and the surface of the anti-slip sleeve is provided with strip-shaped raised textures.

[0045] Furthermore, in the above technical solution, a protrusion is provided on one side of the connecting pin, and an arc-shaped guide groove 22 is provided on the surface of the protrusion. A guide post is fixedly provided on the second movable rod, and the guide post moves along the inside of the arc-shaped guide groove to limit the opening and closing angle of the sprayer.

[0046] Furthermore, in the above technical solution, the application tube is a square backpack structure.

[0047] The method of using this utility model is as follows: Before use, inject the sunscald protectant into the square backpack-style sprayer. After carrying the backpack, start the liquid supply pump. The liquid is delivered to the built-in channels of the two movable rods through the infusion hoses. The operator holds the non-slip grip and opens and closes the sprayer by rotating the connecting pin and the pin shaft. The guide column slides along the arc-shaped guide groove to ensure that the opening and closing angle is within the appropriate range and the operation is smooth. Place the tobacco leaf between the two nozzles, tilting the nozzles to accurately align the nozzles with the front and back of the leaf. Press the grip to maintain the gap, and the liquid will be atomized by the nozzles and evenly cover both sides of the leaf. According to the leaf growth stage and the difference in wax layer on the front and back sides, the liquid flow of the two movable rods is individually controlled by the flow rate regulator to avoid waste or insufficient coverage. After the application is completed, release the grip, and the sprayer will open naturally. The guide structure limits the maximum opening and closing angle. This facilitates continuous operation and enables efficient double-sided application in large-scale tobacco fields.

[0048] Specifically, the principle of this invention is as follows: a backpack-style spray nozzle provides a stable liquid storage and a portable carrying base. The pump delivers the protective agent through infusion hoses to the built-in infusion channels of the first and second movable rods, ensuring independent liquid supply to both nozzles. The movable connection structure of the connecting pin and shaft, combined with the limiting effect of the arc-shaped guide groove and guide post, allows the two rods to open and close smoothly, and the angle can be adjusted according to specific usage. The 90°~160° tilt at the end of the movable rod allows the nozzles to tilt inwards, forming a clamping, opposing spraying structure, ensuring that both sides of the leaf are covered by the spray when it is in the middle position. An independent flow rate regulator can precisely control the flow rate of the liquid in each channel, adapting to the adsorption differences between the front and back of the leaf; the arc-shaped anti-slip grip provides a stable force point for the opening and closing operation of the two rods, and together with the guide structure, achieves a dual-sided spraying effect of liquid supply, volume control, and efficient spraying.

Claims

1. A tobacco sunscald protectant spraying device, comprising an application cylinder, wherein the application cylinder is connected to an infusion hose via a liquid supply pump, and the output end of the infusion hose is connected to a sprayer; characterized in that, The sprayer includes a first movable rod and a second movable rod. The input interfaces of the first and second movable rods are respectively connected to an infusion tubing. The output ends of the first and second movable rods are provided with opposing nozzles. The first and second movable rods are movably connected by a connecting mechanism. The sprayer is provided with a grip near the side connected to the infusion tubing.

2. The tobacco leaf sunscald protectant spraying device according to claim 1, characterized in that, The connecting mechanism includes a connecting pin located on the side of the first movable rod near the grip, and a second movable rod movably connected to the connecting pin via a pin shaft to realize the opening and closing action.

3. The tobacco leaf sunscald protectant spraying device according to claim 2, characterized in that, Both the first and second movable rods have infusion channels inside, with one end of the infusion channel connected to the infusion hose and the other end connected to the nozzle.

4. The tobacco leaf sunscald protectant spraying device according to claim 3, characterized in that, The first and second movable rods have tilting sections near the nozzle end, which are inclined inward to make the nozzles apply the pesticide in opposite directions, so as to apply the pesticide to both sides of the same leaf.

5. The tobacco leaf sunscald protectant spraying device according to claim 4, characterized in that, The angle range of the inclined section is 90°~160°.

6. The tobacco leaf sunscald protectant spraying device according to claim 5, characterized in that, Each individual infusion tubing is equipped with a flow rate regulator to adjust the drug delivery rate.

7. The tobacco leaf sunscald protectant spraying device according to claim 6, characterized in that, The grip section features an arc-shaped hollow handle structure for easy holding and opening / closing.

8. The tobacco leaf sunscald protectant spraying device according to claim 7, characterized in that, The outer surface of the grip is provided with an anti-slip sleeve, and the surface of the anti-slip sleeve is provided with strip-shaped raised texture.

9. A tobacco leaf sunscald protectant spraying device according to claim 8, characterized in that, A protrusion is provided on one side of the connecting pin, and an arc-shaped guide groove is provided on the surface of the protrusion. A guide post is fixedly provided on the second movable rod. The guide post moves along the inside of the arc-shaped guide groove to limit the opening and closing angle of the sprayer.

10. A tobacco leaf sunscald protectant spraying device according to claim 9, characterized in that, The sprayer has a square backpack structure.

Images