Pesticide spraying device for crops cultivated under forest
By designing a pesticide baffle and locking components for a spraying device for understory crops, the problem of pesticide diffusion was solved, enabling precise spraying and forest protection, and improving spraying efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANYA RES INST OF CHINESE ACAD OF TROPICAL AGRI
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-28
AI Technical Summary
During the understory planting process, the sprayed pesticide droplets are easily deviated from the target by the wind, causing the pesticide to spread to the surrounding trees and affect their growth.
A spraying device for understory crops was designed, including a support plate, a nozzle, a deflector plate, and a locking assembly. The deflector plate can be flexibly adjusted through the sliding assembly and the locking assembly, so as to accurately control the spraying range of the pesticide.
It reduces the impact of pesticides on trees, protects the tree growth environment, improves the accuracy of spraying and the flexibility of operation, and ensures that the pesticide does not leak.
Smart Images

Figure CN224165533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forest underplanting technology, and in particular to a spraying device for underplanted crops. Background Technology
[0002] Understory planting refers to a method of agricultural production carried out under trees. It can take advantage of the shade, moisture and fertile soil of trees, make full use of the spatial advantages of trees, and improve land utilization.
[0003] In the process of planting crops under forest canopy, it is usually necessary to use sprayers to spray pesticides on the cultivated crops. When spraying pesticides, the sprayed pesticide droplets may deviate from the target due to wind force and spread to the surrounding trees, thereby affecting the trees around the crops and hindering their normal growth.
[0004] Therefore, it is necessary to provide a new spraying device for understory crops to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a spraying device for crops grown under forest cover.
[0006] The spraying device for understory crops provided by this utility model includes: a support plate, a sliding component, and a locking component. A nozzle is fixedly connected to the upper part of the support plate. The water outlet end of the nozzle is connected to a water pipe. The water outlet end of the water pipe is located on the side of the support plate away from the nozzle. A first baffle plate connected to the support plate is provided around the water outlet end of the water pipe. An arc-shaped sliding hole is opened on one side of the first baffle plate connected to the support plate. A second baffle plate is slidably connected to the inner wall of the arc-shaped sliding hole. A sealing gasket is fixedly connected to one end of the second baffle plate away from the arc-shaped sliding hole. A sealing groove for accommodating the sealing gasket is opened on the other end of the first baffle plate corresponding to the arc-shaped sliding hole. A first locking groove is opened on the top side of the second baffle plate near the sealing gasket. A second locking groove is opened on the top side of the second baffle plate near the arc-shaped sliding hole. A sliding component is installed on the top side of the second baffle plate away from the arc-shaped sliding hole. A locking component that cooperates with the sliding component is installed inside one side of the support plate.
[0007] Preferably, the sliding assembly includes a connecting rod, the bottom end of which is fixedly connected to the top of the second baffle plate on the side away from the arc-shaped sliding hole. The bearing plate has an arc-shaped sliding groove corresponding to the second baffle plate. The connecting rod passes through the arc-shaped sliding groove, and a control panel is fixedly connected to the top end of the connecting rod.
[0008] Preferably, the engaging assembly includes a receiving hole, which is opened inside one side of the support plate. A sliding disk is slidably connected to the inner wall of the receiving hole. An engaging rod that can engage with the first engaging groove or the second engaging groove is fixedly connected inside the sliding disk. A spring is sleeved on the outside of the engaging rod. A pull plate is fixedly connected to the top of the engaging rod.
[0009] Preferably, the bottom end of the control panel is slidably connected to the top end of the support plate, and the outer side of the connecting rod is slidably connected to the inner wall of the arc-shaped sliding groove.
[0010] Preferably, the outer surface of the sealing gasket is inserted into the inner wall of the sealing groove.
[0011] Preferably, the bottom end of the locking rod is arc-shaped, and the arc-shaped side of the bottom end of the locking rod engages with the second locking groove when the second medicine plate extends, and the arc-shaped side of the bottom end of the locking rod engages with the first locking groove when the second medicine plate slides into the inner wall of the arc-shaped sliding hole.
[0012] Preferably, one end of the spring is fixedly connected to the top of the inner wall of the receiving hole, and the other end of the spring is fixedly connected to the top of the sliding disk.
[0013] Preferably, the pull plate is externally fixedly connected with multiple friction blocks, and the outer side of the locking rod is slidably connected to the inner wall of one side of the bearing plate.
[0014] Compared with related technologies, the spraying device for understory crops provided by this utility model has the following advantages:
[0015] Beneficial effects:
[0016] Precise spraying reduces impact on trees: The first and second spray barriers, along with locking and sliding components, allow for flexible adjustment of the barrier's position based on the actual distribution of trees in the understory. When trees are sparse, the barrier can be partially deployed for coverage; when trees are dense, it can be arranged in a circular pattern, effectively limiting the spread of pesticide droplets, reducing the impact of the pesticide on the trees, and preventing slow tree growth due to pesticide diffusion, thus protecting the forest's growing environment.
[0017] Simple and flexible operation: The friction block on the pull plate makes it easy to apply force. The baffle can be opened and closed by pulling the pull plate and rotating the control plate. The operation process is simple and easy to understand. Operators can quickly master it and adjust it in time according to the actual situation, thereby improving the efficiency of spraying.
[0018] The structure is robust and has excellent sealing performance: the engagement of the locking rod and the locking groove, along with the elastic force of the spring, ensures that the pesticide baffle remains firmly fixed in both the extended and retracted states. Simultaneously, the interlocking design of the sealing gasket and sealing groove enhances the sealing performance between the pesticide baffles, further preventing pesticide leakage and diffusion, and ensuring spraying accuracy. Attached Figure Description
[0019] Figure 1 A schematic diagram of the spraying device for understory crops provided by this utility model;
[0020] Figure 2 for Figure 1The diagram shows the structure of the water pipe.
[0021] Figure 3 for Figure 1 The diagram shows the structure of the second baffle plate.
[0022] Figure 4 for Figure 2 Enlarged view of point A in the image.
[0023] The following are the labels in the diagram: 1. Support plate; 2. Water pipe; 3. Nozzle; 4. First baffle plate; 5. Arc-shaped sliding hole; 6. Second baffle plate; 7. Connecting rod; 8. Control panel; 9. Arc-shaped sliding groove; 10. Sealing gasket; 11. Sealing groove; 12. First engaging groove; 13. Second engaging groove; 14. Receiving hole; 15. Sliding disc; 16. Engaging rod; 17. Spring; 18. Pulling disc; 19. Friction block. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0026] Please see Figures 1 to 4 A spraying device for understory crops includes a support plate 1, which serves as the basic support structure for the entire device. A water pipe 3 is fixedly connected inside the support plate 1. The water pipe 3 is used to transport pesticides. A nozzle 2 is fixedly connected to the bottom end of the water pipe 3. The nozzle 2 is responsible for spraying the pesticides delivered by the water pipe 3 in a mist form, thus achieving the spraying operation on the understory crops. On the side away from the water pipe, near the edge of the support plate 1, a first baffle plate 4 is fixedly connected around the nozzle 2. To clarify the relative positions of the nozzle 2 and the first baffle plate 4, therefore... Figure 2 and 3The nozzle 2 in the image is prominent, but this does not represent the actual size ratio between the nozzle and the first baffle plate. One end of the first baffle plate 4 has an arc-shaped sliding hole 5, and a second baffle plate 6 is slidably connected to the inner wall of the arc-shaped sliding hole 5. The arc-shaped sliding hole 5 provides a track for the sliding of the second baffle plate 6, allowing it to slide smoothly within it and cooperate with the first baffle plate 4 to adjust the overall coverage area of the baffle plate. A sealing gasket 10 is fixedly connected to the end of the second baffle plate 6 away from the arc-shaped sliding hole 5. The other end of the first baffle plate 4 has a sealing groove 11. The sealing gasket 10 is soft and has good sealing properties. When the second baffle plate 6 and the first baffle plate 4... When extended to its maximum position, the outer side of the sealing gasket 10 is inserted into the inner wall of the sealing groove 11 on the first baffle plate 4, forming a tight sealing structure, which effectively prevents the liquid from leaking from the gap between the baffle plates and further improves the baffle effect. The top of the second baffle plate 6 near the sealing gasket 10 is provided with a first engaging groove 12, and the top of the second baffle plate 6 near the arc-shaped sliding hole 5 is provided with a second engaging groove 13. These two engaging grooves are used to cooperate with the engaging rod 16 to fix the second baffle plate 6 in different positions and ensure that it will not move at will during the spraying process.
[0027] A sliding assembly is installed on the top side of the second medicine-blocking plate 6 away from the arc-shaped sliding hole 5. It includes a connecting rod 7, the bottom end of which is firmly fixed to the top side of the second medicine-blocking plate 6 away from the arc-shaped sliding hole 5, connecting the second medicine-blocking plate 6 to the control panel 8. The top end of the connecting rod 7 is fixedly connected to the control panel 8, and the bottom end of the control panel 8 is slidably connected to the top end of the support plate 1, allowing the operator to manually rotate the control panel 8 to move the second medicine-blocking plate 6. An arc-shaped sliding groove 9 is formed on the outside of the support plate 1. The outside of the connecting rod 7 is slidably connected to the inner wall of the arc-shaped sliding groove 9. The arc-shaped sliding groove 9 provides guidance and limitation for the sliding of the connecting rod 7, ensuring that the second medicine-blocking plate 6 can slide smoothly along a predetermined trajectory, thereby achieving precise adjustment of the medicine-blocking range.
[0028] The engaging assembly is installed inside one side of the support plate 1, including a receiving hole 14. The receiving hole 14 is formed inside one side of the support plate 1, providing space for components such as the sliding disc 15 and the engaging rod 16. The sliding disc 15 is slidably connected to the inner wall of the receiving hole 14, and the engaging rod 16 is fixedly connected inside the sliding disc 15. The engaging rod 16 can slide up and down within the receiving hole 14, and its outer side is slidably connected to the inner wall of one side of the support plate 1 to ensure the stability of the sliding. The bottom end of the engaging rod 16 has an arc shape. This special arc design allows it to better fit with the first engaging groove 12 and the second engaging groove 13 on the second baffle plate 6. When the second medicine plate 6 extends, the arc-shaped side of the bottom end of the locking rod 16 engages with the second locking groove 13, fixing the second medicine plate 6 in the extended position. When the second medicine plate 6 slides into the inner wall of the arc-shaped sliding hole 5, the arc-shaped side of the bottom end of the locking rod 16 engages with the first locking groove 12, fixing the second medicine plate 6 in the retracted position, thus reliably locking the position of the second medicine plate 6. A spring 17 is sleeved on the outside of the locking rod 16. One end of the spring 17 is fixedly connected to the top of the inner wall of the receiving hole 14, and the other end is fixedly connected to the top of the sliding plate 15. Utilizing the elastic force of the spring 17, after the operator releases the pulling plate 18, the locking rod 16 can automatically reset and engage with the corresponding locking groove, ensuring the stability of the second medicine plate 6. The top of the locking rod 16 is fixedly connected to a pull plate 18. Multiple friction blocks 19 are fixedly connected to the outside of the pull plate 18. The friction blocks 19 increase the friction on the surface of the pull plate 18, making it easier for the operator to pinch the pull plate 18 with their fingers to apply force, thereby driving the locking rod 16 to move upward and disengage the locking rod 16 from the locking groove so as to adjust the position of the second medicine plate 6.
[0029] The working principle of the spraying device for understory crops provided by this utility model is as follows:
[0030] In the initial state of the device, the medicine-blocking plate is in a retracted state, that is, the second medicine-blocking plate 6 slides into the inner wall of the arc-shaped sliding hole 5 of the first medicine-blocking plate 4. At this time, the bottom end of the locking rod 16 engages with the first locking groove 12 on the second medicine-blocking plate 6, fixing the second medicine-blocking plate 6, and the medicine-blocking plate is in a half-circle state. To unfold the medicine-blocking plate, the operator needs to pinch the pull plate 18 with their fingers. The multiple friction blocks 19 on the pull plate 18 can increase the friction force and facilitate the application of force. By pulling the pull plate 18, the locking rod 16 moves upward, compressing the spring 17, so that the locking rod 16 disengages from the first locking groove 12.
[0031] After the locking rod 16 disengages from the first locking groove 12, the operator manually rotates the control panel 8. The control panel 8, through the connecting rod 7, drives the second baffle plate 6 to slide within the arc-shaped sliding hole 5. During this process, the connecting rod 7 slides synchronously within the arc-shaped sliding groove 9 outside the support plate 1. As the second baffle plate 6 slides, the sealing gasket 10 at one end gradually approaches the sealing groove 11 on the first baffle plate 4. When the second baffle plate 6 slides to its maximum position, forming a circle with the first baffle plate 4, the pull plate 18 is released. At this time, under the elastic force of the spring 17, the sliding plate 15 drives the locking rod 16 to move downward, and its bottom end engages with the second locking groove 13 on the second baffle plate 6, fixing the second baffle plate 6 in the unfolded position.
[0032] Then, during the spraying process, the pesticide shield can be flexibly adjusted according to the actual distribution of the understory trees. If the trees are sparsely distributed and the crop area to be sprayed is relatively concentrated in one direction, the pesticide shield can be adjusted to a partially deployed state. For example, when there are trees that need protection on only one side, the second pesticide shield 6 can be slid into the arc-shaped sliding groove 5 by rotating the control panel 8, so that it overlaps with the arc-shaped sliding groove 5, forming a half-circle. The arc-shaped sliding groove 5 is used to block the side with trees, preventing the pesticide from being sprayed onto the trees, and only spraying the crop area.
[0033] If the trees are dense and the crop is surrounded by them, in order to spray accurately and avoid the pesticide spreading excessively onto the trees, the second baffle plate 6 can be adjusted to its maximum extended state and fixed in the maximum extended position, forming a circle. At this time, the pesticide sprayed from the nozzle 2 is confined to the circular area by the baffle plate, minimizing the spread of the pesticide to the surrounding trees.
[0034] After spraying is completed, if it is necessary to restore the baffle plate to its initial retracted state for storage or preparation for spraying in a different scenario, first, turn off the spraying device and clean it. Clean any residual pesticide from the nozzle 2 to prevent it from drying and clogging the nozzle or remaining on the two baffle plates. After cleaning, pull the pull plate 18 to disengage the locking rod 16 from the second locking groove 13, and then rotate the control plate 8 in the opposite direction to slide the second baffle plate 6 into the arc-shaped sliding hole 5. When the second baffle plate 6 is fully retracted, release the pull plate 18. The locking rod 16, under the action of the spring 17, engages with the first locking groove 12, fixing the second baffle plate 6 in place.
[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A spraying device for crops grown under forest cover, characterized in that, include: A support plate (1) is provided, and a nozzle (2) is fixedly connected to the support plate (1). The water outlet end of the nozzle (2) is connected to a water pipe (3). The water outlet end of the water pipe (3) is located on the side of the support plate (1) away from the nozzle (2). A first baffle plate (4) connected to the support plate is provided around the water outlet end of the water pipe (3). An arc-shaped sliding hole (5) is opened on one side of the first baffle plate (4) connected to the support plate (1). A second baffle plate is slidably connected to the inner wall of the arc-shaped sliding hole (5). Plate (6), the end of the second medicine plate (6) away from the arc-shaped sliding hole (5) is fixedly connected to a sealing gasket (10), the other end of the first medicine plate (4) corresponding to the arc-shaped sliding hole (5) is provided with a sealing groove (11) to accommodate the sealing gasket (10), the top of the second medicine plate (6) is provided with a first engaging groove (12) on the side of the top of the second medicine plate (6) close to the sealing gasket (10), and the top of the second medicine plate (6) is provided with a second engaging groove (13) on the side of the top of the second medicine plate (6) close to the arc-shaped sliding hole (5); The sliding assembly is installed on the side of the top of the second baffle plate (6) away from the arc-shaped sliding hole (5); The engaging assembly is installed inside one side of the support plate (1) and engages with the sliding assembly.
2. The spraying device for understory crops according to claim 1, characterized in that, The sliding assembly includes a connecting rod (7), the bottom end of the connecting rod (7) is fixedly connected to the top of the second baffle plate (6) on the side away from the arc-shaped sliding hole (5), the bearing plate (1) is provided with an arc-shaped sliding groove (9) corresponding to the second baffle plate (6), the connecting rod (7) passes through the arc-shaped sliding groove (9), and the top end of the connecting rod (7) is fixedly connected to a control panel (8).
3. The spraying device for understory crops according to claim 1, characterized in that, The engaging assembly includes a receiving hole (14), which is opened inside one side of the support plate (1). A sliding plate (15) is slidably connected to the inner wall of the receiving hole (14). An engaging rod (16) that can engage with the first engaging groove (12) or the second engaging groove (13) is fixedly connected inside the sliding plate (15). A spring (17) is sleeved on the outside of the engaging rod (16). A pull plate (18) is fixedly connected to the top of the engaging rod (16).
4. The spraying device for understory crops according to claim 2, characterized in that, The bottom of the control panel (8) is slidably connected to the top of the support plate (1), and the outside of the connecting rod (7) is slidably connected to the inner wall of the arc-shaped sliding groove (9).
5. The spraying device for understory crops according to claim 1, characterized in that, The outer side of the sealing gasket (10) is inserted into the inner wall of the sealing groove (11).
6. The spraying device for understory crops according to claim 3, characterized in that, The bottom end of the locking rod (16) is arc-shaped. When the second medicine plate (6) extends out, the arc-shaped side of the bottom end of the locking rod (16) engages with the second locking groove (13). When the second medicine plate (6) slides into the inner wall of the arc-shaped sliding hole (5), the arc-shaped side of the bottom end of the locking rod (16) engages with the first locking groove (12).
7. The spraying device for understory crops according to claim 3, characterized in that, One end of the spring (17) is fixedly connected to the top of the inner wall of the receiving hole (14), and the other end of the spring (17) is fixedly connected to the top of the sliding disk (15).
8. The spraying device for understory crops according to claim 3, characterized in that, The pull plate (18) is externally fixedly connected to multiple friction blocks (19), and the outer side of the locking rod (16) is slidably connected to the inner wall of one side of the bearing plate (1).