A continuous spraying device for plant protection helicopters

Abstract

This utility model relates to the field of plant protection helicopter technology. It provides a continuous spraying device for plant protection helicopters, including a frame. A collection box is fixedly installed at the front upper end of the frame, and a delivery pump is fixedly installed at the upper end of the collection box. A first spraying rod is fixedly installed on one side of the collection box, with a first fixing ring fixedly connected to its upper end. A second spraying rod is fixedly installed on the other side of the collection box, with a second fixing ring fixedly connected to its upper end. A delivery hose is fixedly connected to the left rear of the collection box. This invention solves the technical problems of traditional plant protection helicopters with fixed tank capacity, where spraying is impossible after all the pesticide solution in the tank has been sprayed, requiring the helicopter to land and replenish the solution, thus preventing continuous spraying. Furthermore, it addresses the difficulty of quickly and securely replacing the tank, leading to longer replacement times and impacting subsequent spraying.

Description

Technical Field

[0001] This utility model relates to the field of plant protection helicopter technology, specifically to a continuous spraying device for plant protection helicopters. Background Technology

[0002] Aerial pesticide application systems are technological equipment that uses aircraft as carriers to spray pesticides from the air, featuring high efficiency and strong adaptability. Based on the differences in the operating platform, they are mainly divided into three categories: fixed-wing aircraft, helicopters, and unmanned helicopters. This system is suitable for large-area farmland, forests, and other scenarios, saving approximately 40% of pesticides compared to traditional ground-based application, achieving a control effect of over 90%, while also reducing environmental pollution.

[0003] Existing plant protection spraying helicopters apply pesticides to vegetation by spraying pesticides from their tanks. The tank capacity of these helicopters is fixed, and once all the pesticide in the tank is sprayed, they cannot continue spraying. This forces the helicopter to land and refill the tank, resulting in the inability to spray continuously. When replacing the tank, it is not easy to replace it quickly and securely, which prolongs the replacement time and affects subsequent spraying. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a continuous spraying device for plant protection helicopters, which solves the technical problems of the fixed capacity of the original plant protection spraying helicopter's tank, which means that once all the liquid in the tank is sprayed, the spraying cannot continue, causing the helicopter to land and replenish the liquid, resulting in the device being unable to spray continuously. Furthermore, when replacing the tank, it is not possible to quickly and securely replace and install the tank, which increases the replacement time and affects subsequent spraying.

[0005] According to one aspect, at least one embodiment of the present invention provides a continuous spraying device for a plant protection helicopter, comprising: a frame, a collection box fixedly installed at the front of the upper end of the frame, a delivery pump fixedly installed at the upper end of the collection box, a first spraying bar fixedly installed on one side of the collection box, a first fixing ring fixedly connected to the upper end of the first spraying bar, and a second spraying bar fixedly installed on the other side of the collection box, and a second fixing ring fixedly connected to the upper end of the second spraying bar;

[0006] A first conveying hose is fixedly connected to the left rear of the central box, and a valve is fixedly installed at the upper end of the first conveying hose. A first connecting pipe is fixedly installed at the lower end of the first conveying hose, and a valve is fixedly installed at the upper end of the first connecting pipe. A connector is fixedly installed at the upper rear of the first conveying hose.

[0007] For example, in at least one embodiment of the present invention, a continuous spraying device for plant protection helicopters is provided, which further includes: a second delivery hose is fixedly installed on the rear right side of the central box, and a second connecting pipe is fixedly installed at the lower end of the second delivery hose.

[0008] For example, in at least one embodiment of the present invention, a continuous spraying device for a plant protection helicopter is provided, which further includes: a sliding plate fixedly installed at the rear of the upper end of the frame, and a sliding groove fixedly opened inside the sliding plate; fixed holes fixedly opened on both sides of the outer end of the sliding plate; a sliding block fixedly connected inside the sliding groove; a spare box fixedly installed at the upper end of the sliding block; and a connector fixedly installed at the front of the upper end of the spare box.

[0009] For example, in at least one embodiment of the present invention, a continuous spraying device for plant protection helicopters is provided, which further includes: a mounting frame fixedly connected to the upper end of the spare box, and a support frame fixedly installed at the lower end of the mounting frame; connecting grooves are fixedly opened on both sides inside the mounting frame, and mounting holes are opened inside the connecting grooves; a medicine tank is fixedly connected inside the spare box, and a water level sensor is fixedly installed on the upper end of the medicine tank; connecting blocks are fixedly installed on both sides of the upper end of the medicine tank, and insertion holes are fixedly opened on the upper end of the connecting blocks.

[0010] For example, in at least one embodiment of the present invention, a continuous spraying device for a plant protection helicopter is provided, which further includes: the first spraying rod is fixedly connected to the front end of the frame through a first fixing ring; the first spraying rod and the second spraying rod are symmetrically installed on the left and right sides of the collection box with the collection box as the center reference; and the first spraying rod and the second spraying rod are structural boxes.

[0011] For example, in at least one embodiment of the present invention, a continuous spraying device for plant protection helicopters is provided, which further includes: the upper end structure of the first fixing ring and the second fixing ring is the same; the first delivery hose is fixedly connected to the medicine tank through a connector; and the first delivery hose and the second delivery hose have the same structure.

[0012] For example, in at least one embodiment of the present invention, a continuous spraying device for plant protection helicopters is provided, which further includes: the sliding plate is U-shaped, the sliding groove and the sliding block are slidably connected, the fixing holes are symmetrically installed on the left and right sides of the sliding plate with the sliding plate as the center reference, and the spare box is fixedly connected to the first connecting pipe and the second connecting pipe through the front end connector.

[0013] For example, in at least one embodiment of the present invention, a continuous spraying device for plant protection helicopters is provided, which further includes: the connecting groove is symmetrically installed on the front and rear sides of the mounting frame with the interior of the mounting frame as the center reference; the support frame is U-shaped; the connecting block and the connecting groove form a sliding connection; and the connecting block is symmetrically installed on the front and rear sides of the medicine box with the medicine box as the center reference.

[0014] The beneficial effects of the embodiments of this utility model are as follows:

[0015] In this invention, a spare medicine tank is added to the lower end of the main medicine tank. The medicine tank delivers the medicine via a delivery hose, which is connected to the spare medicine tank. The medicine is delivered by opening and closing a valve. This arrangement allows the medicine to be stored in the spare medicine tank, and the medicine in both the main medicine tank and the spare medicine tank can be discharged for use by opening and closing the valve, thus increasing the application time of the device. In addition, in this device, the medicine tank is installed by a mounting frame. The mounting frame has connecting grooves on both sides inside, and the connecting block intersects with the connecting groove to install the medicine tank into the mounting frame. A support frame is added to the lower end of the mounting frame to place the medicine tank stably. The above arrangement ensures the stable installation of the medicine tank and facilitates quick replacement of the medicine tank by subsequent flange connection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a continuous pesticide application device for a plant protection helicopter in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the conveying hose structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the spare box structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the medicine box of this utility model.

[0022] In the diagram: 1. Frame; 2. Centralized container; 3. Delivery pump; 4. First spray bar; 5. First fixing ring; 6. Second spray bar; 7. Second fixing ring; 8. Delivery hose one; 9. Valve one; 10. First connecting pipe; 11. Valve two; 12. Connector; 13. Delivery hose two; 14. Second connecting pipe; 15. Sliding plate; 16. Sliding groove; 17. Fixing hole; 18. Sliding block; 19. Spare box; 20. Connector; 21. Mounting frame; 22. Support frame; 23. Connecting groove; 24. Mounting hole; 25. Medicine tank; 26. Water level sensor; 27. Connecting block; 28. Insertion hole. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0024] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] like Figures 1-3 As shown, it illustrates a continuous spraying device for plant protection helicopters according to an embodiment of the present invention, comprising: a frame 1, a collection box 2 fixedly installed at the front of the upper end of the frame 1, a delivery pump 3 fixedly installed at the upper end of the collection box 2, a first spraying bar 4 fixedly installed on one side of the collection box 2, a first fixing ring 5 fixedly connected to the upper end of the first spraying bar 4, and a second spraying bar 6 fixedly installed on the other side of the collection box 2, and a second fixing ring 7 fixedly connected to the upper end of the second spraying bar 6;

[0030] The conveying hose 18 is fixedly connected to the left rear of the central box 2, and the upper end of the conveying hose 18 is fixedly installed with valve 19. The lower end of the conveying hose 18 is fixedly installed with first connecting pipe 10. The upper end of first connecting pipe 10 is fixedly installed with valve 21. The upper rear of the conveying hose 18 is fixedly installed with connector 12.

[0031] For example, such as Figure 2 As shown, a second conveying hose 13 is fixedly installed on the rear right side of the central box 2, and a second connecting pipe 14 is fixedly installed at the lower end of the second conveying hose 13.

[0032] For example, such as Figure 3 As shown, the first spray bar 4 is fixedly connected to the front end of the frame 1 through the first fixing ring 5. The first spray bar 4 and the second spray bar 6 are symmetrically installed on the left and right sides of the central box 2 with the central box 2 as the center reference. The first spray bar 4 and the second spray bar 6 are structural boxes.

[0033] For example, such as Figure 3 As shown, the upper structures of the first fixing ring 5 and the second fixing ring 7 are the same. The first delivery hose 8 is fixedly connected to the medicine box 25 through the connector 12. The first delivery hose 8 and the second delivery hose 13 have the same structure.

[0034] In some examples, the upper structure is placed via frame 1, and the central tank 2 connects the first spray bar 4 and the second spray bar 6. The lower ends of the two main medicine tanks 25 are connected to delivery hose 1 8 and delivery hose 2 13 respectively via connector 12. The upper ends of delivery hose 1 8 and delivery hose 2 13 are connected to the central tank 2. When spraying medicine, the delivery pump 3 draws out the medicine from the main medicine tanks 25, and the medicine is delivered to the central tank 2 via delivery hose 1 8 and delivery hose 2 13. The central tank 2 distributes the medicine to the first spray bar 4 and the second spray bar 6 on both sides for spraying. The first connecting pipe 10 and the second connecting pipe 14 are connected to the spare tank 19 via connector 20. When the medicine in the main medicine tank 25 is about to run out... The water level sensor 26 at its lower end sends a signal. The water level sensor 26 is an ultrasonic liquid level sensor DL14-01. After receiving the signal, the controller (PLC) opens the valve 11 on the first connecting pipe 10 and the second connecting pipe 14 in advance to prepare for switching to the standby tank 19. When the liquid in the main medicine tank 25 is completely used up, the controller closes the valve 9 on the first delivery hose 8 and the second delivery hose 13 to cut off the liquid supply to the main medicine tank 25. The liquid in the standby tank 19 is discharged through the first connecting pipe 10 and the second connecting pipe 14, and is transported to the central tank 2 through the front end of the first delivery hose 8 and the second delivery hose 13. Finally, it is continuously sprayed through the first spray bar 4 and the second spray bar 6.

[0035] For example, such as Figure 4-5 As shown, it illustrates a continuous spraying device for plant protection helicopters in another embodiment of the present invention, including a sliding plate 15 fixedly installed at the rear of the upper end of the frame 1, a sliding groove 16 fixedly opened inside the sliding plate 15, fixing holes 17 fixedly opened on both sides of the outer end of the sliding plate 15, a sliding block 18 fixedly connected inside the sliding groove 16, a spare box 19 fixedly installed at the upper end of the sliding block 18, and a connector 20 fixedly installed at the front of the upper end of the spare box 19.

[0036] For example, such as Figure 4 As shown, a mounting bracket 21 is fixedly connected to the upper end of the spare box 19, and a support bracket 22 is fixedly installed at the lower end of the mounting bracket 21. Connecting grooves 23 are fixedly opened on both sides inside the mounting bracket 21, and mounting holes 24 are opened inside the connecting grooves 23. A medicine box 25 is fixedly connected inside the spare box 19, and a water level sensor 26 is fixedly installed on the upper end of the medicine box 25. Connecting blocks 27 are fixedly installed on both sides of the upper end of the medicine box 25, and insertion holes 28 are fixedly opened on the upper end of the connecting blocks 27.

[0037] For example, such as Figure 4 As shown, the sliding plate 15 is U-shaped, the sliding groove 16 and the sliding block 18 form a sliding connection, the fixing hole 17 is symmetrically installed on the left and right sides of the sliding plate 15 with the sliding plate 15 as the center reference, and the spare box 19 is fixedly connected to the first connecting pipe 10 and the second connecting pipe 14 through the front end connector 20.

[0038] For example, such as Figure 5 As shown, the connecting groove 23 is symmetrically installed on the front and back sides of the mounting frame 21 with the interior of the mounting frame 21 as the center reference. The support frame 22 is U-shaped. The connecting block 27 and the connecting groove 23 form a sliding connection. The connecting block 27 is symmetrically installed on the front and back sides of the medicine box 25 with the medicine box 25 as the center reference.

[0039] In some examples, the mounting bracket 21 is flanged to both sides of the upper part of the helicopter. A connecting groove 23 is formed inside the mounting bracket 21. A support frame 22 is fixed to the lower end of the mounting bracket 21 to support the medicine box 25. Connecting blocks 27 are installed on both sides of the medicine box 25. During installation, the connecting blocks 27 are inserted into the connecting groove 23 inside the mounting bracket 21, so that the medicine box 25 sits on the support frame 22. Insertion holes 28 are formed on both sides of the connecting blocks 27, and mounting holes 24 are formed inside the connecting groove 23. The insertion holes 28 and mounting holes 24 are aligned, and the connecting blocks 27 are fastened in the connecting groove 23 using flange connections (such as bolts), thereby firmly installing the medicine box 25 on the mounting bracket 21. A sliding block 18 is installed at the lower end of the spare box 19. A sliding groove 16 is formed inside the sliding plate 15. The sliding block 18 at the lower end of the spare box 19 is placed into the sliding groove 16 of the sliding plate 15. 5. Fixing holes 17 are provided on both sides. The sliding block 18 is fastened to the sliding plate 15 by flange connection (such as bolts). The fixing holes 17 are aligned with the corresponding holes on the sliding block 18 to fix the spare box 19. When disassembling, use an automatic screwdriver to quickly remove the fixing screws (flange connectors) between the connecting block 27 and the connecting groove 23. The medicine box 25 is then horizontally pulled out from the connecting groove 23 of the mounting bracket 21 through the connecting blocks 27 on both sides. When installing a new medicine box 25, the above steps are reversed. The connecting block 27 of the new medicine box 25 is inserted into the connecting groove 23, the holes are aligned, and the fixing screws are tightened with an automatic screwdriver. When disassembling the spare box 19, use an automatic screwdriver to quickly remove the fixing screws between the fixing holes 17 and the sliding block 18. The spare box 19 is then horizontally pulled out from the sliding groove 16 of the sliding plate 15 through the lower sliding block 18.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A continuous pesticide application device for agricultural helicopters, characterized in that, include: A frame (1) is fixedly installed at the front of the upper end of the frame (1). A conveying pump (3) is fixedly installed at the upper end of the frame (1). A first spray bar (4) is fixedly installed on one side of the frame (2). A first fixing ring (5) is fixedly connected to the upper end of the first spray bar (4). A second spray bar (6) is fixedly installed on the other side of the frame (2). A second fixing ring (7) is fixedly connected to the upper end of the second spray bar (6). A first conveying hose (8) is fixedly connected to the left rear of the central box (2), and a valve (9) is fixedly installed at the upper end of the first conveying hose (8). A first connecting pipe (10) is fixedly installed at the lower end of the first conveying hose (8). A second valve (11) is fixedly installed at the upper end of the first connecting pipe (10). A connector (12) is fixedly installed at the upper rear of the first conveying hose (8).

2. The continuous spraying device for crop protection helicopters according to claim 1, characterized in that, A second conveying hose (13) is fixedly installed on the rear right side of the central box (2), and a second connecting pipe (14) is fixedly installed at the lower end of the second conveying hose (13).

3. The continuous pesticide application device for plant protection helicopters according to claim 1, characterized in that, A sliding plate (15) is fixedly installed at the rear of the upper end of the frame (1), and a sliding groove (16) is fixedly opened inside the sliding plate (15). Fixing holes (17) are fixedly opened on both sides of the outer end of the sliding plate (15). A sliding block (18) is fixedly connected inside the sliding groove (16), and a spare box (19) is fixedly installed at the upper end of the sliding block (18). A connector (20) is fixedly installed at the front of the upper end of the spare box (19).

4. The continuous pesticide application device for plant protection helicopters according to claim 3, characterized in that, The spare box (19) is fixedly connected to the upper end of the mounting frame (21), and the lower end of the mounting frame (21) is fixedly installed with the support frame (22). The mounting frame (21) has a connecting groove (23) fixedly opened on both sides inside, and the connecting groove (23) has an installation hole (24) inside. The spare box (19) is fixedly connected to the inside of the medicine box (25), and the upper end of the medicine box (25) is fixedly installed with a water level sensor (26). The upper ends of the medicine box (25) are fixedly installed with connecting blocks (27) on both sides, and the upper end of the connecting blocks (27) is fixedly opened with an insertion hole (28).

5. The continuous spraying device for crop protection helicopters according to claim 1, characterized in that, The first spray bar (4) is fixedly connected to the front end of the frame (1) through the first fixing ring (5). The first spray bar (4) and the second spray bar (6) are symmetrically installed on the left and right sides of the central box (2) with the central box (2) as the center reference. The first spray bar (4) and the second spray bar (6) are structural boxes.

6. The continuous spraying device for crop protection helicopters according to claim 1, characterized in that, The first fixing ring (5) and the second fixing ring (7) have the same upper structure. The first delivery hose (8) is fixedly connected to the medicine box (25) through the connector (12). The first delivery hose (8) and the second delivery hose (13) have the same structure.

7. The continuous pesticide application device for plant protection helicopters according to claim 3, characterized in that, The sliding plate (15) is U-shaped. The sliding groove (16) and the sliding block (18) form a sliding connection. The fixing hole (17) is symmetrically installed on the left and right sides of the sliding plate (15) with the sliding plate (15) as the center reference. The spare box (19) is fixedly connected to the first connecting pipe (10) and the second connecting pipe (14) through the front end connector (20).

8. The continuous pesticide application device for plant protection helicopters according to claim 4, characterized in that, The connecting groove (23) is symmetrically installed on the front and back sides of the mounting frame (21) with the interior of the mounting frame (21) as the center reference. The support frame (22) is in the shape of a square. The connecting block (27) and the connecting groove (23) form a sliding connection. The connecting block (27) is symmetrically installed on the front and back sides of the medicine box (25) with the medicine box (25) as the center reference.

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