Adjustable self-propelled plant protection machine
By using a two-way threaded screw and limiting post assembly to adjust the nozzle position in a self-propelled plant protection machine, the problem of sparse pesticide droplet distribution in the edge area caused by the nozzles being concentrated in one row is solved, achieving a more uniform pesticide spraying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YUHE INTELLIGENT AGRICULTURAL EQUIPMENT CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional self-propelled plant protection machines have their nozzles concentrated in a row, resulting in sparse pesticide droplet distribution in the edge areas and affecting the spraying effect.
A bidirectional threaded screw drives the moving block and limit post assembly, adjusting the position of the arc-shaped sliding block and the nozzle to achieve flexible adjustment of the nozzle angle.
This effectively avoids the situation where pesticide droplets are sparsely distributed in the two side edge areas of the nozzle, thus improving the uniformity of spraying and the control effect.
Smart Images

Figure CN224267980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural plant protection machinery technology, specifically, to an adjustable self-propelled plant protection machine. Background Technology
[0002] In agricultural production, traditional manual plant protection methods are labor-intensive and inefficient. Farmers need to carry heavy sprayers and move back and forth in the fields to spray pesticides, which not only consumes a lot of manpower and time, but also may result in inconsistent pesticide application due to uneven manual operation, affecting the plant protection effect.
[0003] Current self-propelled plant protection machines concentrate the nozzles in a row for spraying. Because the nozzles are concentrated in one row, when spraying a wider area, the coverage at the edges may not be as uniform as in the middle. Taking a rectangular farmland as an example, when the plant protection machine is operating in a straight line, the nozzle in the middle of the row can cover the area directly below it well, but the pesticide droplets on both sides of the edge area will be sparsely distributed due to the nozzle angle and distance, which will affect the overall control effect. Therefore, an adjustable self-propelled plant protection machine is proposed. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable self-propelled plant protection machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides an adjustable self-propelled plant protection machine, including a base plate body. Universal wheels are fixedly installed on the bottom side of the base plate body near the four corners. A water storage tank is fixedly connected to the top side of the base plate body. An inlet is opened on the top side of the water storage tank near one side. An adjustment component and a conveying component are provided on the top side of the water storage tank. The adjustment component includes a U-shaped plate, which is fixedly connected to the top side of the base plate body near the other side. Arc-shaped strips are fixedly connected to the top side of the U-shaped plate near both sides. Arc-shaped connecting blocks are fixedly connected between two arc-shaped strips. Arc-shaped sliding blocks are slidably installed on the outer sides of both arc-shaped strips.
[0006] As a further improvement to this technical solution, a bidirectional threaded screw is rotatably connected to the middle position of the inner walls on both sides of the U-shaped plate, and the two ends of the bidirectional threaded screw penetrate the U-shaped plate. Two moving blocks are threadedly connected to the outer side of the bidirectional threaded screw. The two moving blocks are arranged far apart from each other. A drive bar is fixedly connected to one side of each of the two moving blocks near the top side. A limit groove is opened on the top side of the drive bar. A limit post is slidably installed in the limit groove, and the limit post is fixedly connected to the middle position of the bottom side of the arc-shaped sliding block.
[0007] As a further improvement to this technical solution, the conveying assembly includes a conveying pump, which is fixedly installed at the middle position on the top side of the water storage tank. A first connecting pipe and a second connecting pipe are connected to the conveying pump. The first connecting pipe extends through the water storage tank to the bottom, and the other end of the second connecting pipe is connected to a four-way connector. A metal pipe and two flexible hoses are connected to the four-way connector.
[0008] As a further improvement to this technical solution, nozzles are fixedly installed at the middle position of the top side of the arc-shaped connecting block and the two arc-shaped sliding blocks. The nozzle located on the top side of the arc-shaped connecting block is connected to one end of the metal pipe, and the metal pipe is used to support the four-way connector. The other two nozzles are respectively connected to two hoses.
[0009] As a further improvement to this technical solution, by rotating the bidirectional threaded screw, the two moving blocks are driven to move towards each other or in opposite directions. At the same time, the limiting grooves on the two drive bars squeeze the limiting post, so that the two arc-shaped sliding blocks slide on the outside of the two arc-shaped bars respectively.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] In adjustable self-propelled plant protection machinery, because the nozzles on the machine are concentrated in one row, the pesticide droplets on both sides of the edge area may be sparse due to the angle and distance of the nozzles. By setting a bidirectional threaded screw, two moving blocks are driven to move in opposite directions. At the same time, the limiting grooves on the two drive bars squeeze the limiting post, causing the two arc-shaped sliding blocks to slide on the outside of the two arc-shaped bars respectively. This drives the two nozzles on the top side of the two arc-shaped sliding blocks to move, thereby achieving the effect of angle adjustment and avoiding the situation where the pesticide droplets are sparsely distributed on both sides of the edge area due to the nozzles being concentrated in one row. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the adjustment component structure of the utility model;
[0014] Figure 3 This is a schematic diagram of the conveying component structure of the utility model.
[0015] The meanings of the labels in the diagram are as follows:
[0016] 1. Base plate; 2. Water tank; 3. Adjustment assembly; 31. U-shaped plate; 32. Arc strip; 33. Arc connecting block; 34. Arc sliding block; 35. Bidirectional threaded screw; 36. Moving block; 37. Drive bar; 38. Limiting groove; 39. Limiting post; 4. Conveying assembly; 41. Conveying pump; 42. Second connecting pipe; 43. Second connecting pipe; 44. Four-way connector; 45. Metal pipe; 46. Flexible hose; 47. Nozzle. Detailed Implementation
[0017] 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.
[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0019] Example 1
[0020] Please see Figures 1-3As shown, this embodiment provides an adjustable self-propelled plant protection machine, including a base plate body 1. Universal casters are fixedly installed on the bottom side of the base plate body 1 near the four corners, facilitating the movement of the plant protection machine and making it easy for operators to push it. A water tank 2 is fixedly connected to the top side of the base plate body 1, allowing for pesticide storage and avoiding frequent pesticide refills. An injection port is located on one side of the top of the water tank 2 for convenient pesticide addition. An adjustment component 3 and a conveyor are located on the top side of the water tank 2. Component 4, through the adjustable component 3, allows for angle adjustment, preventing the pesticide droplets from concentrating on one side edge area and becoming sparsely distributed. The adjustable component 3 includes a U-shaped plate 31, which is fixedly connected to the top side of the base plate 1 near the other side. Arc-shaped strips 32 are fixedly connected to the top side of the U-shaped plate 31 near both sides, supporting the two arc-shaped strips 32. An arc-shaped connecting block 33 is fixedly connected between the two arc-shaped strips 32, serving as a connection between them. Arc-shaped sliding blocks 34 are slidably installed on the outer side of the U-shaped plate 32. The arc-shaped sliding blocks 34 slide along the outer side of the arc-shaped strip 32, while the arc-shaped strip 32 guides the arc-shaped sliding blocks 34. A double-threaded screw 35 is rotatably connected to the middle position of the inner walls on both sides of the U-shaped plate 31, and the two ends of the double-threaded screw 35 pass through the U-shaped plate 31. Two moving blocks 36 are threadedly connected to the outer side of the double-threaded screw 35. The two moving blocks 36 are set far apart from each other. At the same time, the top inner wall of the U-shaped plate 31 and the top side of the water storage tank 2 can limit the movement of the moving blocks 36, so that the two moving blocks 36 can be stably positioned. The two moving blocks 36 are fixedly connected to a drive bar 37 near the top side on one side. A limit groove 38 is opened on the top side of the drive bar 37. A limit post 39 is slidably installed in the limit groove 38 and fixedly connected to the middle of the bottom side of the arc-shaped sliding block 34. By rotating the bidirectional threaded screw 35, the two moving blocks 36 are driven to move towards each other or in opposite directions. At the same time, the limit groove 38 on the two drive bars 37 presses the limit post 39, so that the two arc-shaped sliding blocks 34 slide on the outside of the two arc-shaped bars 32 respectively.
[0021] Please see Figure 1 and Figure 3As shown, the delivery assembly 4 includes a delivery pump 41, which is fixedly installed at the top center of the water storage tank 2. A first connecting pipe 42 and a second connecting pipe 43 are connected to the delivery pump 41. The first connecting pipe 42 extends through the water storage tank 2 to the bottom, thereby achieving the effect of pesticide delivery. The other end of the second connecting pipe 43 is connected to a four-way connector 44, which is connected to a metal pipe 45 and two flexible hoses 46. Through the four-way connector 44, the metal pipe 45, and the two flexible hoses 46, pesticides can be delivered to multiple nozzles 47. The conveying system has nozzles 47 fixedly installed at the top center of the arc-shaped connecting block 33 and the two arc-shaped sliding blocks 34. The nozzles 47 located on the top side of the arc-shaped connecting block 33 are connected to one end of the metal pipe 45, and the metal pipe 45 is used to support the four-way connector 44. The other two nozzles 47 are connected to two hoses 46 respectively. The pesticide is drawn from the water storage tank 2 by the conveying pump 41 and conveyed to the multiple nozzles 47 through the four-way connector 44. The multiple nozzles 47 then spray the pesticide onto the crops.
[0022] In practical use, the adjustable self-propelled plant protection machine of this embodiment first adds pesticide to the water tank 2 through the injection port, then connects the power supply to the plant protection machine. Then, the operator pushes the plant protection machine. Before spraying pesticide, the double-threaded screw 35 is rotated to drive the two moving blocks 36 to move in opposite directions. At the same time, the limiting grooves 38 on the two drive bars 37 squeeze the limiting post 39, causing the two arc-shaped sliding blocks 34 to slide on the outside of the two arc-shaped bars 32 respectively. This drives the two nozzles 47 on the top side of the two arc-shaped sliding blocks 34 to move, allowing the angle of the two nozzles 47 to be adjusted. Finally, the pesticide is drawn out of the water tank 2 by the delivery pump 41 and delivered to the multiple nozzles 47 through the four-way connector 44. The multiple nozzles 47 then spray the pesticide onto the crops.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable self-propelled plant protection machine comprising a base plate body (1), characterized in that: Universal casters are fixedly installed on the bottom side of the base plate (1) near the four corners. A water tank (2) is fixedly connected to the top side of the base plate (1). An injection port is opened on the top side of the water tank (2) near one side. An adjustment component (3) and a conveying component (4) are provided on the top side of the water tank (2). The adjustment component (3) includes a U-shaped plate (31). The U-shaped plate (31) is fixedly connected to the top side of the base plate (1) near the other side. Arc strips (32) are fixedly connected to the top side of the U-shaped plate (31) near both sides. Arc connecting blocks (33) are fixedly connected between the two arc strips (32). Arc sliding blocks (34) are slidably installed on the outer sides of the two arc strips (32).
2. The adjustable self-propelled plant protection machine according to claim 1, characterized in that: A bidirectional threaded screw (35) is rotatably connected to the middle position of the inner walls on both sides of the U-shaped plate (31), and the two ends of the bidirectional threaded screw (35) penetrate the U-shaped plate (31). Two moving blocks (36) are threadedly connected to the outer side of the bidirectional threaded screw (35). The two moving blocks (36) are set far apart from each other. A drive bar (37) is fixedly connected to one side of each of the two moving blocks (36) near the top side. A limit groove (38) is opened on the top side of the drive bar (37). A limit post (39) is slidably installed in the limit groove (38), and the limit post (39) is fixedly connected to the middle position of the bottom side of the arc-shaped sliding block (34).
3. The adjustable self-propelled plant protection machine according to claim 1, characterized in that: The conveying assembly (4) includes a conveying pump (41), which is fixedly installed at the top middle position of the water storage tank (2). The conveying pump (41) is connected to a first connecting pipe (42) and a second connecting pipe (43). The first connecting pipe (42) extends through the water storage tank (2) to the bottom. The other end of the second connecting pipe (43) is connected to a four-way connector (44). The four-way connector (44) is connected to a metal pipe (45) and two flexible hoses (46).
4. The adjustable self-propelled plant protection machine according to claim 3, characterized in that: The arc-shaped connecting block (33) and the two arc-shaped sliding blocks (34) are all fixedly installed with nozzles (47) at the middle position of the top side. The nozzle (47) located on the top side of the arc-shaped connecting block (33) is connected to one end of the metal pipe (45) and is used to support the four-way connector (44) through the metal pipe (45). The other two nozzles (47) are connected to two hoses (46) respectively.
5. The adjustable self-propelled plant protection machine according to claim 2, characterized in that: By rotating the bidirectional threaded screw (35), the two moving blocks (36) are driven to move towards each other or in opposite directions. At the same time, the limiting grooves (38) on the two driving bars (37) squeeze the limiting post (39), so that the two arc-shaped sliding blocks (34) slide on the outside of the two arc-shaped bars (32).