Constant-pressure pipeline conveying pesticide spraying device for hillside orchard
By using a constant-pressure pipeline spraying device in mountain orchards, the problem of inconvenient pesticide delivery in mountain orchards has been solved, enabling uninterrupted pesticide supply, uniform dilution, and efficient spraying, thereby improving the effectiveness of pest and disease control and reducing transportation risks and costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANSHUI WEIDEFENG AGRICULTURAL SCIENCE & TECHNOLOGY SERVICE CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-24
AI Technical Summary
In mountainous orchards, existing technologies make it difficult to safely and conveniently deliver pesticides, especially as they cannot effectively spray them onto the undersides of the lower leaves of fruit trees, and there are also transportation risks and nozzle clogging issues.
A constant-pressure pipeline spraying device for mountain orchards was designed. It uses 2-3 ton mixing tanks to mix pesticides in rotation, is equipped with a stirring air pump and a rigid air pipe to mix pesticides, installs a disc filter to filter impurities, uses a booster pump and frequency converter control cabinet to maintain stable pressure, and transports the pesticide solution to the orchard outlet through a high-pressure PE pipeline. It is also equipped with a drain valve to prevent the pipeline from freezing and cracking.
It achieves uninterrupted pesticide supply, uniform pesticide dilution, and prevention of nozzle clogging, ensuring that the pesticide solution penetrates the lower leaves of fruit trees, reducing transportation risks, improving the targeting and efficiency of pest and disease control, and saving labor and pesticide costs.
Smart Images

Figure CN224155000U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orchard spraying, and in particular to a constant pressure pipeline spraying device for mountain orchards. Background Technology
[0002] One of the most important tasks in daily orchard management is pest and disease control, namely plant protection spraying. Due to terrain limitations, wind-powered sprayers, which are typically used in plains areas, are difficult to operate in mountainous orchards. Currently, orchards mostly use tricycles to transport pesticides and water to the field, where they are then connected to spray hoses for application. In bad weather, with slippery mountain roads, accidents involving overturned vehicles and injuries are common.
[0003] Drone-based plant protection is an ideal solution for large-scale planting and is widely used in field crops in plains areas. It can save a lot of labor costs and achieve effective plant protection and spraying that is labor-saving, timely, and economical in terms of pesticides. However, the application of drone-based plant protection on tall crops in mountainous areas is not widespread. This is because the wind conditions during drone flight cannot completely allow the pesticide spray to penetrate to the underside of the lower leaves of fruit trees (the underside of the lower leaves is the main habitat of fruit tree diseases and pests). How to safely and conveniently deliver pesticides to the field in orchards, and then simply connect the hoses for spraying, has become an urgent problem to be solved for orchards.
[0004] Based on this, we propose a constant pressure pipeline spraying device for mountain orchards. Utility Model Content
[0005] To address the technical problem of inconvenient spraying in mountainous planting areas, this utility model provides a constant pressure pipeline spraying device for mountain orchards.
[0006] This utility model is achieved by the following technical solution: a constant pressure pipeline spraying device for mountain orchards, including a mixing tank, a support frame fixedly installed at the top of the mixing tank, a stirring air pump installed on the support frame, and an air pipe fixedly connected to the bottom of the stirring air pump; the air pipe is made of rigid pipe material, and the air pipe passes through the mixing tank and extends to the bottom of the mixing tank.
[0007] There are two mixing tanks, each with an outward-extending liquid pesticide pipeline. The bottom of each mixing tank connects to the liquid pesticide pipeline, which consists of two sets interconnected via branch pipes. Valves control the flow of the pesticide solution at the connection points. A pesticide filter and a booster pump are installed on the liquid pesticide pipeline. A disc filter is installed on the liquid pesticide pipeline between the mixing tank outlet and the booster pump. Because some pesticides contain insoluble impurities that can clog the spray nozzles, the liquid pesticide is filtered. After each application, the filter is cleaned to ensure the pesticide is completely dissolved and prevents clogging of the spray nozzles.
[0008] One end of a cable is connected to the booster pump, and the other end of the cable is connected to a frequency converter control cabinet. The frequency converter control cabinet is electrically connected to the booster pump via the cable and controls the pressure changes of the stainless steel booster pump. A field PE delivery pipeline is connected to the outside of the booster pump, and the pressurized high-pressure pesticide solution is delivered to the designated outlet in the orchard through the field PE delivery pipeline.
[0009] The top of the field PE pesticide delivery pipeline is connected to a drain valve, and an outlet unit is also connected to the pipeline. The outlet unit includes an outlet valve, which is installed on the field PE pesticide delivery pipeline. One end of the outlet branch pipe is connected to the outside of the outlet valve, and the other end of the outlet branch pipe is connected to a spray nozzle. Workers connect the spray pipe to the spray nozzle at the outlet to begin pesticide spraying.
[0010] As a further optimization of this invention, a 2-3 ton mixing tank is used in the mixing room to prepare the pesticide solution. Since orchard plant protection spraying is usually a continuous process, the two mixing tanks can be used alternately to ensure uninterrupted pesticide supply.
[0011] As a further optimization of this utility model, a stirring air pump installed on the support frame has a rigid air pipe connected to its bottom end that passes through the mixing tank and extends to the bottom, inflating the bottom of the mixing tank and causing the liquid inside the tank to tumble and swirl, thereby diluting and mixing pesticides with different pH levels evenly. This method can also avoid corrosion problems caused by using metal stirring parts.
[0012] As a further optimization of this utility model, the pesticide solution filter is a disc filter, installed between the outlet of the mixing tank and the booster pump to filter out insoluble impurities in the pesticide. The filtered pesticide solution enters the booster pump, which is a 3KW, 198M head multistage centrifugal pump, with two pumps, one for backup. It pressurizes the pesticide solution in the mixing tank to meet the atomization requirements of the spray nozzle.
[0013] As a further optimization of this utility model, the main pipeline of the field PE drug delivery pipeline adopts high-pressure PE pipe DE32, with a pressure resistance of 5.0 MPa; the branch pipeline adopts high-pressure PE pipe DE25, with a pressure resistance of 5.0 MPa, to ensure that it can withstand the transportation of high-pressure liquid drugs.
[0014] As a further optimization of this utility model, a drain valve is installed at the end of the field pesticide delivery pipeline network. To prevent underground pipelines from freezing and cracking due to the drop in winter temperatures, the liquid in the pipelines is drained through the drain valve before winter arrives, thus maintaining the pipelines.
[0015] As a further optimization of this utility model, the frequency converter control cabinet is electrically connected to the booster pump via a cable to control the booster pump.
[0016] As a further optimization of this utility model, the frequency converter control cabinet can enable the booster pump to maintain a stable pressure under different flow rates, pressurize the liquid medicine to meet the atomization requirements of the spray nozzle, so that the liquid medicine can be atomized during spraying and evenly sprayed on the surface of the fruit tree leaves.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. This utility model achieves uninterrupted pesticide supply and ensures continuous plant protection by setting up two 2-3 ton mixing tanks to operate in rotation. A mixing method using a stirring air pump to inflate the bottom of the tank through a rigid air pipe ensures uniform dilution of pesticides with different pH levels, avoids corrosion of metal stirring components, and improves mixing safety and mixing efficiency.
[0019] 2. This utility model uses a disc filter installed in the pesticide pipeline to filter insoluble impurities in the pesticide, preventing clogging of the spray nozzles and reducing the frequency of manual cleaning. The booster pump, combined with a frequency converter control cabinet, can automatically adjust the pressure according to the number of pesticide outlets opened in the field, ensuring that the pesticide solution is always atomized at a stable pressure, evenly covering the surface of fruit tree leaves and improving the control effect of pests and diseases.
[0020] 3. This utility model delivers the pesticide solution directly to the designated outlet in the orchard via a pipeline system. Workers only need to connect the spray pipe and nozzle at the edge of the field to begin operations, eliminating the need for tricycles to transport the pesticide solution and avoiding the risks associated with transporting pesticides in mountainous areas. Compared to drone-based plant protection, this device ensures that the pesticide solution penetrates to the underside of the lower leaves of the fruit trees (the main habitat of pests and diseases), improving the targeting and effectiveness of plant protection and saving labor and pesticide costs. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is an enlarged structural schematic diagram of the drug outlet unit of this utility model.
[0023] Explanation of key symbols:
[0024] 1. Dosing tank; 2. Support frame; 3. Stirring air pump; 4. Air pipe; 5. Liquid pesticide pipeline; 6. Liquid pesticide filter; 7. Booster pump; 8. Cable; 9. Variable frequency control cabinet; 10. Field PE delivery pipeline; 11. Drain valve; 12. Discharge unit; 121. Outlet valve; 122. Discharge branch pipe; 123. Spray nozzle. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] Example 1:
[0027] Please combine Figures 1-2 This embodiment proposes a constant pressure pipeline spraying device for mountain orchards, including a mixing tank 1, a support frame 2 fixedly installed on the top of the mixing tank 1, a stirring air pump 3 installed on the support frame 2, and an air pipe 4 fixedly connected to the bottom of the stirring air pump 3.
[0028] It should be noted that the trachea 4 is made of rigid material, and the trachea 4 passes through the medicine container 1 and extends to the bottom of the medicine container 1.
[0029] The specific technical solution involves using two 2-3 ton mixing tanks (1) in the mixing room to prepare the pesticide solution. Since orchard pesticide application is typically a continuous process, the two mixing tanks (1) can be used alternately to ensure uninterrupted pesticide supply. During the mixing process, an air pump (3) mounted on a support frame (2), with a rigid air pipe (4) connected to its bottom, passes through the mixing tank (1) and extends to the bottom, inflating the bottom of the tank. This causes the liquid inside to swirl and churn, ensuring that pesticides with different pH levels are diluted and mixed evenly. This method also avoids corrosion problems caused by using metal stirring components.
[0030] Two mixing tanks 1 are provided, one of which can be used as a spare. Both mixing tanks 1 are connected to liquid pesticide pipes 5 extending outwards. The bottom of each mixing tank 1 is connected to the liquid pesticide pipes 5, which consist of two sets connected by branch pipes to allow for liquid pesticide flow. Valves are installed at the connection points to control the opening and closing of the liquid pesticide. A liquid pesticide filter 6 is installed on each liquid pesticide pipe 5, and a booster pump 7 is also installed on each pipe. The liquid pesticide filter 6 is a disc filter installed between the outlet of the mixing tank 1 and the booster pump 7 to filter out insoluble impurities in the pesticide. The filtered liquid pesticide enters the booster pump 7, which is a 3KW, 198M head multistage centrifugal pump. Two pumps are used, one as a spare. The booster pump pressurizes the liquid pesticide in the mixing tank 1 to meet the atomization requirements of the spray nozzles 123.
[0031] The specific technical solution involves connecting the bottom of the mixing tank 1 to the liquid pesticide pipe 5. A disc filter is installed on the liquid pesticide pipe 5, located between the outlet of the mixing tank 1 and the booster pump 7. Because some pesticides contain insoluble impurities that can clog the spray nozzles 123, the liquid pesticide is filtered through the liquid pesticide filter 6. After each application, the impurities in the liquid pesticide filter 6 are cleaned promptly to ensure that the delivered liquid pesticide is completely dissolved and will not clog the spray nozzles 123.
[0032] One end of a cable 8 is connected to the booster pump 7, and the other end of the cable 8 is connected to a frequency converter control cabinet 9. The frequency converter control cabinet 9 is electrically connected to the booster pump 7 via the cable 8, and controls the pressure changes of the stainless steel booster pump. A field PE pesticide delivery pipeline 10 is connected to the outside of the booster pump 7. The pressurized high-pressure pesticide solution is delivered to the designated outlet in the orchard through the field PE pesticide delivery pipeline 10. The main pipeline of the field PE pesticide delivery pipeline 10 uses high-pressure PE pipe DE32, with a pressure resistance of 5.0 MPa; the branch pipelines use high-pressure PE pipe DE25, with a pressure resistance of 5.0 MPa, ensuring that it can withstand the delivery of high-pressure pesticide solution.
[0033] A drain valve 11 is connected to the top of the field PE pesticide delivery pipeline 10, and a drain valve 11 is installed at the end of the field pesticide delivery pipeline network. In winter, as temperatures drop, to prevent underground pipelines from freezing and cracking, the liquid in the pipeline is drained through the drain valve 11 before winter arrives, serving as a maintenance measure. A pesticide outlet unit 12 is connected to the field PE pesticide delivery pipeline 10.
[0034] In the specific technical solution, the frequency converter control cabinet 9 is electrically connected to the booster pump 7 via cable 8 to control the booster pump 7. Because there are many pesticide outlets in the field, the number of valves opened each time will cause changes in the flow rate of the pesticide solution in the pipeline, which in turn will cause pressure changes. The frequency converter control cabinet 9 can maintain a stable pressure for the booster pump 7 under different flow rates, pressurizing the pesticide solution to meet the atomization requirements of the sprinkler head 123, so that the pesticide solution can be atomized and evenly sprayed onto the surface of the fruit tree leaves.
[0035] The pesticide outlet unit 12 includes an outlet valve 121, which is installed on the field PE pesticide delivery pipeline 10. One end of the pesticide outlet branch pipe 122 is connected to the outside of the outlet valve 121, and the other end of the pesticide outlet branch pipe 122 is connected to a sprinkler head 123. The pesticide outlet branch pipe 122 adopts a flexible hose structure for easy operation. Workers can connect the spray pipe to the sprinkler head 123 at the pesticide outlet to carry out pesticide spraying operations.
[0036] This patent relates to a constant-pressure pipeline spraying device for mountain orchards, the working principle of which is as follows:
[0037] Preparation and mixing of medicine solution
[0038] In the mixing room, two 2-3 ton mixing tanks 1 are used to prepare the pesticide solution. The two mixing tanks 1 can be used alternately to ensure uninterrupted pesticide supply. During the mixing process, an air pump 3 installed on a support frame 2, with a rigid air pipe 4 connected to its bottom end, passes through the mixing tank 1 and extends to the bottom, inflating the bottom of the mixing tank 1. This causes the liquid inside the tank to swirl and churn, thus diluting and mixing pesticides with different pH levels evenly. This method also avoids corrosion problems caused by using metal stirring parts.
[0039] Drug filtration
[0040] The bottom of the mixing tank 1 is connected to the liquid pesticide pipe 5. A disc filter is installed on the liquid pesticide pipe 5, between the outlet of the mixing tank 1 and the booster pump 7. Because some pesticides contain insoluble impurities that can clog the spray nozzles 123, the liquid pesticide is filtered through the liquid pesticide filter 6. After each application, the impurities in the liquid pesticide filter 6 are cleaned in time to ensure that the delivered liquid pesticide is completely dissolved and will not clog the spray nozzles 123.
[0041] Pressurized drug solution
[0042] The filtered pesticide solution enters the booster pump 7, which is a 3KW, 198M head multistage centrifugal pump. Two pumps are used, one as a backup. It pressurizes the pesticide solution in the mixing tank 1 to meet the atomization requirements of the spray nozzles 123. The frequency converter control cabinet 9 is electrically connected to the booster pump 7 via cable 8 to control the booster pump 7. Because there are many pesticide outlets in the field, the number of valves opened each time will cause changes in the flow rate of the pesticide solution in the pipeline, which in turn will cause changes in pressure. The frequency converter control cabinet 9 can keep the booster pump 7 at a stable pressure under different flow rates, pressurizing the pesticide solution to meet the atomization requirements of the spray nozzles 123, so that the pesticide solution can be atomized and evenly sprayed on the surface of the fruit tree leaves.
[0043] Drug delivery
[0044] The pressurized high-pressure pesticide solution is transported to the designated outlet in the orchard via the field PE delivery pipeline 10. The main pipeline of the field PE delivery pipeline 10 uses high-pressure PE pipe DE32, with a pressure resistance of 5.0 MPa; the branch pipelines use high-pressure PE pipe DE25, also with a pressure resistance of 5.0 MPa, ensuring the ability to withstand the transport and spraying of the high-pressure pesticide solution.
[0045] A pesticide outlet unit 12 is connected to the field PE pesticide delivery pipeline 10. The pesticide outlet unit 12 includes an outlet valve 121 installed on the delivery pipeline. A pesticide outlet branch pipe 122 is connected to the outside of the outlet valve 121, and the other end of the pesticide outlet branch pipe 122 is connected to a spray nozzle 123. Workers can then connect the spray pipe to the spray nozzle 123 at the pesticide outlet to carry out pesticide spraying operations.
[0046] Pipeline maintenance
[0047] Drain valve 11 is installed at the end of the field pesticide delivery pipeline network. In order to prevent the underground pipeline from freezing and cracking due to the drop in winter temperature, the liquid in the pipeline is drained through drain valve 11 before winter arrives to maintain the pipeline.
[0048] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A constant pressure pipeline spraying device for mountain orchards, characterized in that, The device includes a medicine mixing tank (1), a support frame (2) is fixedly installed on the top of the medicine mixing tank (1), a stirring air pump (3) is installed on the support frame (2), an air pipe (4) is fixedly connected to the bottom of the stirring air pump (3), a medicine liquid pipe (5) is connected to the bottom of the medicine mixing tank (1) to the outside, a medicine liquid filter (6) is installed on the medicine liquid pipe (5), and a booster pump (7) is installed on the medicine liquid pipe (5). One end of a cable (8) is connected to the booster pump (7), and the other end of the cable (8) is connected to a frequency converter control cabinet (9). A field PE pesticide delivery pipeline (10) is connected to the outside of the booster pump (7). A drain valve (11) is connected to the end of the field PE pesticide delivery pipeline (10), and a pesticide outlet unit (12) is connected to the field PE pesticide delivery pipeline (10).
2. The constant pressure pipeline spraying device for mountain orchards as described in claim 1, characterized in that, The discharge port unit (12) includes an outlet valve (121), which is installed on the field PE delivery pipeline (10). One end of the outlet branch pipe (122) is connected to the outside of the outlet valve (121), and the other end of the outlet branch pipe (122) is connected to a spray nozzle (123).
3. The constant pressure pipeline spraying device for mountain orchards as described in claim 1, characterized in that, The trachea (4) is made of rigid tubing and extends through the medicine dispensing container (1) to the bottom of the medicine dispensing container (1).
4. The constant pressure pipeline spraying device for mountain orchards as described in claim 1, characterized in that, The liquid filter (6) is a disc filter. The liquid filter (6) is installed between the outlet of the mixing tank (1) and the booster pump (7) to filter out insoluble impurities in the pesticide.
5. A constant pressure pipeline spraying device for mountain orchards as described in claim 1, characterized in that, There are two medicine dispensing tanks (1), and both medicine dispensing tanks (1) are connected to medicine liquid pipes (5) extending outward.
6. The constant pressure pipeline spraying device for mountain orchards as described in claim 1, characterized in that, The liquid medicine pipeline (5) is provided in two sets, and the two sets of liquid medicine pipeline (5) are connected to each other through branch pipelines to allow liquid medicine to flow. A valve is provided at the connection to control the opening and closing.