Multi-path control farmland irrigation device

Abstract

The utility model is suitable for farmland irrigation device technical field provides multichannel branch control farmland irrigation device, include: main pipe, even connect in the branch pipe of main pipe one side, the outer wall of branch pipe one end all installs first electromagnetic valve, the top of main pipe is installed and adds the fertilizer pipe, the inner wall of the other side of roof support installs power battery, installs automatic fertilizer adding mechanism in the fertilizer pipe top end middle position department, the one side below the drop head all installs PH value sensor, the other side below the drop head all installs humidity sensor, all install adjusting mechanism in the drop head inner wall. The multichannel branch control farmland irrigation device provided by the scheme utilizes the adjusting mechanism in the drop head, drives the worm and worm gear drive through servo motor, drives the baffle accurate adjustment fixed plate on the through -hole overflow area, realizes the independent accurate control of each drop head flow.

Description

Technical Field

[0001] This utility model relates to the technical field of farmland irrigation devices, specifically a multi-channel separately controlled farmland irrigation device. Background Technology

[0002] Traditional farmland irrigation devices, such as flood irrigation and sprinkler irrigation, generally suffer from serious water waste and low irrigation uniformity. In recent years, drip irrigation technology has been widely used due to its water-saving characteristics. Although existing multi-channel drip irrigation systems can control different branches in different zones through valves, they still have significant shortcomings in terms of precision and intelligence. The water flow rate of the drippers in existing drip irrigation systems is usually fixed or roughly adjusted manually. It is impossible to independently and precisely control the flow rate of each dripper according to different growth stages of crops, differences in soil permeability, or changes in field micro-topography. This leads to uneven watering of crops in the same irrigation area, affecting uniform crop growth and limiting further improvement in water resource utilization efficiency. Moreover, current irrigation and fertilization methods mostly rely on pre-mixing or pressure differential suction in the main pipeline, resulting in inaccurate fertilizer ratios and the inability to perform on-demand and automatic precise fertilization based on the actual fertilizer needs of each zone. This can easily lead to over- or under-fertilization, causing fertilizer waste and potentially causing soil compaction and environmental pollution. In view of these issues, this case was developed through in-depth research. Utility Model Content

[0003] This utility model provides a multi-channel separately controlled farmland irrigation device, which aims to solve the problem that the currently used multi-channel separately controlled farmland irrigation devices do not have flow regulation and intelligent fertilization.

[0004] This utility model is implemented as follows: a multi-channel, separately controlled farmland irrigation device, comprising: a main pipe; branch pipes evenly connected to one side of the main pipe, each branch pipe having a first solenoid valve installed on its outer wall at one end; a fertilizer inlet pipe installed above the main pipe; a top frame installed at the top of the fertilizer inlet pipe; a control panel installed on one inner wall below the top frame; and a battery installed on the other inner wall of the top frame; an automatic fertilizer inlet mechanism installed at the middle position of the top of the fertilizer inlet pipe, the automatic fertilizer inlet mechanism being used for automatic water and fertilizer inlet; drippers evenly connected to the lower part of the branch pipes, each dripper having a pH sensor installed on one side below the dripper; a humidity sensor installed on the other side below the dripper; water outlet holes evenly arranged at the bottom of each dripper; and a filter cover threaded onto the outer wall of each dripper outside the water outlet holes; and an adjustment mechanism installed on the inner wall of each dripper, the adjustment mechanism being used for adjusting the dripper flow rate.

[0005] Preferably, the automatic fertilizer application mechanism includes: an electric telescopic rod installed at the middle position of the top of the fertilizer application tube, a piston installed on the inner wall of the fertilizer application tube, and the bottom end of the electric telescopic rod passing through the fertilizer application tube and connecting to the top end of the piston.

[0006] Preferably, a discharge pipe is connected below the fertilizer addition pipe, and the bottom end of the discharge pipe is connected to the main pipe. A feed pipe is connected to one side of the outer wall below the fertilizer addition pipe, and one end of the feed pipe is connected to a mixing tank. A second solenoid valve is installed on the outer wall of both the feed pipe and the discharge pipe.

[0007] Preferably, photovoltaic panels are installed at the top of both sides of the top frame, and a storage battery is installed on the inner side of the top frame below the battery.

[0008] Preferably, the adjustment mechanism includes: mounting plates all installed on the inner wall of the dripper, rotating shafts movably mounted below the mounting plates via bearings, and baffles connected to the bottom ends of the rotating shafts; a fixing plate is installed on the inner wall of the dripper below the baffles, and a through hole is provided on one side of the fixing plate.

[0009] Preferably, the top view of the baffle, the fixing plate, and the through hole are all semi-circular, and a sealing gasket is connected to the bottom of the baffle.

[0010] Preferably, a worm gear is movably mounted on the inner wall of the dripper via a bearing, and a servo motor is mounted on the outer wall of the dripper. The output end of the servo motor is connected to one end of the worm gear via a drive shaft. A worm wheel is mounted on the outer wall of the rotating shaft, and a meshing transmission structure is formed between the worm wheel and the worm gear.

[0011] Compared with related technologies, the multi-channel split-control farmland irrigation device provided by this utility model has the following beneficial effects: 1. The system utilizes humidity and pH sensors in each irrigation zone to monitor soil moisture and pH levels in real time, feeding the data back to the control panel. Based on the sensor data, the control panel independently controls the opening and closing of the first solenoid valve on each branch pipe to achieve on-demand zoned irrigation. When the system identifies a specific area that needs fertilization, it automatically starts the fertilization mechanism. Through the electric telescopic rod driving the piston, and in coordination with the second solenoid valve, the water and fertilizer in the mixing tank are precisely injected into the main pipe and delivered to the corresponding branch pipe, achieving the goal of on-demand allocation and precise application of water and fertilizer resources.

[0012] 2. By utilizing the adjustment mechanism inside the dripper, a servo motor drives the worm gear and worm wheel to precisely adjust the flow area of ​​the through hole on the fixed plate, thereby achieving independent and precise control of the flow rate of each dripper. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of the main pipe and branch pipe of this utility model; Figure 2 This is a cross-sectional view of the fertilizer tube of this utility model; Figure 3 This is a cross-sectional view of the dripper of this utility model; Figure 4This is a cross-sectional view of the filter cover of this utility model; Figure 5 This is a top view of the baffle structure of this utility model.

[0014] In the diagram: 1. Main pipe; 2. Fertilizer adding pipe; 3. Branch pipe; 4. First solenoid valve; 5. Automatic fertilizer adding mechanism; 501. Electric telescopic rod; 502. Piston; 503. Discharge pipe; 504. Second solenoid valve; 505. Feed pipe; 506. Mixing tank; 6. Battery; 7. Photovoltaic panel; 8. Power supply battery; 9. Top frame; 10. Control panel; 11. Dripping head; 12. Adjustment mechanism; 1201. Mounting plate; 1202. Worm gear; 1203. Worm wheel; 1204. Rotating shaft; 1205. Through hole; 1206. Baffle; 1207. Fixing plate; 1208. Servo motor; 13. pH sensor; 14. Filter cover; 15. Humidity sensor; 16. Water outlet. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example 1

[0017] A preferred embodiment of the multi-channel split-control farmland irrigation device provided by this utility model is, for example... Figure 1 and Figure 2The multi-channel, separately controlled farmland irrigation device includes: a main pipe 1; branch pipes 3 evenly connected to one side of the main pipe 1, each branch pipe 3 having a first solenoid valve 4 installed on the outer wall of one end; a fertilizer inlet pipe 2 installed above the main pipe 1, a top frame 9 installed at the top of the fertilizer inlet pipe 2, a control panel 10 installed on the inner wall of one side below the top frame 9, and a battery 8 installed on the inner wall of the other side of the top frame 9; an automatic fertilizer inlet mechanism 5 installed at the middle position of the top of the fertilizer inlet pipe 2, which is used for automatic water and fertilizer inlet; drippers 11 evenly connected to the lower side of the branch pipes 3, each dripper 11 having a pH sensor 13 installed on one side below the bottom of the dripper 11, a humidity sensor 15 installed on the other side below the dripper 11, each dripper 11 having a water outlet hole 16 evenly arranged at the bottom end, and a filter cover 14 threadedly installed on the outer wall of the dripper 11 outside the water outlet hole 16; and an adjustment mechanism 12 installed on the inner wall of each dripper 11, which is used for adjusting the flow rate of the dripper 11.

[0018] It should be noted that the existing multi-channel, distributed irrigation system technology has several drawbacks. Firstly, the water flow rate of the drippers in existing drip irrigation systems is usually fixed or roughly adjusted manually. This makes it impossible to independently and precisely control the flow rate of each dripper based on different crop growth stages, soil permeability differences, or changes in field micro-topography. This results in uneven water distribution to crops within the same irrigation area, affecting uniform crop growth and limiting further improvements in water resource utilization efficiency. Secondly, current irrigation and fertilization methods often rely on pre-mixing or pressure differential absorption in the main pipe, leading to inaccurate fertilizer ratios and an inability to automatically and precisely apply fertilizer according to the actual fertilizer needs of each zone. This can easily result in over- or under-fertilization, causing fertilizer waste and potentially leading to soil compaction and environmental pollution.

[0019] In this embodiment, power is supplied by photovoltaic panel 7 and battery 6. Control panel 10 coordinates the operation of each component. Humidity sensor 15 and pH sensor 13 monitor the soil environment in real time. Control panel 10 controls the opening and closing of the first solenoid valve 4 on the corresponding branch pipe 3 according to the monitoring data to realize zoned irrigation. When fertilization is required, automatic fertilization mechanism 5 is activated. Electric telescopic rod 501 drives piston 502 to move in fertilizer pipe 2. It cooperates with the opening and closing of second solenoid valve 504 on feed pipe 505 and discharge pipe 503 to accurately inject water and fertilizer in mixing tank 506 into main pipe 1. The flow rate of each dripper 11 is precisely controlled by adjustment mechanism 12. Servo motor 1208 drives worm gear 1202 to drive worm wheel 1203, so that baffle 1206 on rotating shaft 1204 rotates relative to through hole 1205 of fixed plate 1207, changing the flow area. The irrigation water finally flows out from outlet hole 16 after being filtered by filter cover 14, completing precise irrigation.

[0020] In a further preferred embodiment of the present invention, the automatic fertilizer feeding mechanism 5 includes: an electric telescopic rod 501 installed at the middle position of the top of the fertilizer feeding tube 2, a piston 502 installed on the inner wall of the fertilizer feeding tube 2, and the bottom end of the electric telescopic rod 501 passing through the fertilizer feeding tube 2 and connected to the top end of the piston 502.

[0021] In this embodiment, the automatic fertilization mechanism 5 drives the piston 502 to move up and down in the fertilizer addition pipe 2 via the electric telescopic rod 501, realizing the automatic intake and discharge of water and fertilizer. When the electric telescopic rod 501 pulls the piston 502 upward, a negative pressure is formed in the fertilizer addition pipe 2. At this time, the second solenoid valve 504 on the feed pipe 505 opens and the second solenoid valve 504 on the discharge pipe 503 closes. Water and fertilizer are drawn from the mixing tank 506 into the fertilizer addition pipe 2 through the feed pipe 505. When the electric telescopic rod 501 pushes the piston 502 downward, the second solenoid valve 504 on the feed pipe 505 closes and the second solenoid valve 504 on the discharge pipe 503 opens. Water and fertilizer are pressed into the discharge pipe 503 and then flow into the main pipe 1. After mixing with the irrigation water, it is transported to each branch pipe 3 and dripper 11.

[0022] In a further preferred embodiment of this utility model, a discharge pipe 503 is connected below the fertilizer pipe 2, and the bottom end of the discharge pipe 503 is connected to the main pipe 1. A feed pipe 505 is connected to one side of the outer wall below the fertilizer pipe 2, and one end of the feed pipe 505 is connected to a mixing tank 506. A second solenoid valve 504 is installed on the outer wall of both the feed pipe 505 and the discharge pipe 503.

[0023] In this embodiment, the fertilizer addition pipe 2 is connected to the mixing tank 506 via the feed pipe 505 to draw in the pre-mixed water and fertilizer. At the same time, it is connected to the main pipe 1 via the discharge pipe 503 to transport the water and fertilizer to the irrigation system. The feed pipe 505 and the discharge pipe 503 are respectively equipped with second solenoid valves 504 to control the opening and closing of the pipeline. By controlling the coordinated opening and closing of the two second solenoid valves 504, the automatic fertilizer addition mechanism 5 can be used to achieve precise and automatic intake and discharge of water and fertilizer, effectively preventing irrigation water backflow, ensuring stable water and fertilizer ratio and controllability of the fertilization process, and improving the automation level and reliability of the system.

[0024] In a further preferred embodiment of this utility model, photovoltaic panels 7 are installed at the top of both sides of the top frame 9, and a storage battery 6 is installed on the inner side of the top frame 9 below the battery 8.

[0025] In this embodiment, the photovoltaic panels 7 installed on the top of both sides of the top frame 9 can convert solar energy into electrical energy and provide power support for the electrical components in the device. The storage battery 6 located inside the top frame 9 below the battery 8 is used to store the electrical energy generated by the photovoltaic panels 7, so as to achieve continuous power supply under insufficient light or nighttime conditions. This photovoltaic power supply system effectively improves the energy self-sufficiency and adaptability of the irrigation device to the field environment, reduces the dependence on the traditional power grid, and meets the requirements of green agriculture and sustainable development. Example 2

[0026] Based on Embodiment 1, a preferred embodiment of the multi-channel split-control farmland irrigation device provided by this utility model is, for example... Figure 3 , Figure 4 and Figure 5 As shown: The adjustment mechanism 12 includes: mounting plates 1201 installed on the inner wall of the dripper 11, rotating shafts 1204 are movably mounted on the lower part of the mounting plates 1201 via bearings, and baffles 1206 are connected to the bottom end of the rotating shafts 1204. A fixing plate 1207 is installed on the inner wall of the dripper 11 below the baffles 1206, and a through hole 1205 is provided on one side of the fixing plate 1207.

[0027] In this embodiment, the adjustment mechanism 12 adjusts the water flow rate of the dripper 11 by changing the relative position of the baffle 1206 and the through hole 1205 on the fixed plate 1207. When the rotating shaft 1204 drives the baffle 1206 to rotate, the overlapping area of ​​the through hole 1205 between the baffle 1206 and the fixed plate 1207 changes, thereby controlling the effective cross-sectional area through which the water flows. The larger the overlapping area, the larger the flow rate; the smaller the overlapping area, the smaller the flow rate. This structure enables independent, precise, and continuous adjustment of the water output of each dripper 11, which can adapt to the differentiated irrigation needs of different crops or soil areas and effectively improve water resource utilization efficiency.

[0028] In a further preferred embodiment of this utility model, the top view of the baffle 1206, the fixing plate 1207 and the through hole 1205 are all semi-circular, and a sealing gasket is connected to the bottom of the baffle 1206.

[0029] In this embodiment, the top view of the baffle 1206, the fixing plate 1207, and the through hole 1205 are all designed as semi-circular structures, so that when the baffle 1206 rotates around the rotation axis 1204, it can form a continuous and smooth overlapping area change with the through hole 1205 on the fixing plate 1207, thereby realizing linear adjustment of the flow rate. The sealing gasket connected below the baffle 1206 can form an effective seal when the baffle 1206 and the fixing plate 1207 are closed, preventing leakage when the water flow is closed, and ensuring the control accuracy and reliability of the dripper 11 under zero flow or low flow conditions.

[0030] In a further preferred embodiment of this utility model, a worm gear 1202 is movably mounted on the inner wall of the dripper head 11 via a bearing, and a servo motor 1208 is mounted on the outer wall of the dripper head 11. The output end of the servo motor 1208 is connected to one end of the worm gear 1202 via a drive shaft. A worm wheel 1203 is mounted on the outer wall of the rotating shaft 1204, and a meshing transmission structure is formed between the worm wheel 1203 and the worm gear 1202.

[0031] In this embodiment, the servo motor 1208 drives the worm gear 1202 to rotate. The worm gear 1202 meshes with the worm wheel 1203 mounted on the rotating shaft 1204, thereby converting the rotational motion of the motor into the precise rotation of the rotating shaft 1204. This further drives the baffle 1206 to adjust its overlap area with the through hole 1205 on the fixed plate 1207. The transmission structure of the worm wheel 1203 and the worm gear 1202 has a self-locking characteristic, which can effectively prevent the position of the baffle 1206 from drifting due to water flow impact in the non-drive state, ensuring the stable maintenance of the flow regulation state. At the same time, the transmission ratio of this structure is large, which can realize the precise fine adjustment of the baffle 1206, improving the accuracy and reliability of the flow control of the dripper 11.

[0032] In summary, the automatic fertilization mechanism 5 utilizes the electric telescopic rod 501 to drive the piston 502 in conjunction with the second solenoid valve 504 to achieve precise fertilization. Furthermore, the servo motor 1208 in the adjustment mechanism 12 drives the worm gear 1202 and worm wheel 1203 to drive the baffle 1206 to adjust the opening of the through hole 1205 of the fixed plate 1207. Combined with the first solenoid valve 4 of the branch pipe 3, it achieves zone control. With the real-time monitoring of the pH sensor 13 and humidity sensor 15 at the dripper 11, and the power supply from the photovoltaic panel 7 and the battery 6, a farmland irrigation system integrating precision irrigation, intelligent fertilization, and zone control is formed.

[0033] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0034] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A multi-channel, separately controlled farmland irrigation device, characterized in that, include: Supervisor (1); A branch pipe (3) is evenly connected to one side of the main pipe (1). A first solenoid valve (4) is installed on the outer wall of one end of the branch pipe (3). A fertilizer pipe (2) is installed above the main pipe (1). A top frame (9) is installed at the top of the fertilizer pipe (2). A control panel (10) is installed on one side of the inner wall below the top frame (9). A battery (8) is installed on the inner wall of the other side of the top frame (9). An automatic fertilizer adding mechanism (5) is installed at the middle position of the top of the fertilizer adding pipe (2). The automatic fertilizer adding mechanism (5) is used to automatically add water and fertilizer. The drippers (11) are evenly connected below the branch pipe (3). A pH sensor (13) is installed on one side below the drippers (11), and a humidity sensor (15) is installed on the other side below the drippers (11). Water outlet holes (16) are evenly provided at the bottom of the drippers (11), and a filter cover (14) is threaded on the outer wall of the drippers (11) outside the water outlet holes (16). The adjustment mechanism (12) is installed on the inner wall of the dripper (11), and the adjustment mechanism (12) is used to adjust the flow rate of the dripper (11).

2. The multi-channel, distributed irrigation device for farmland as described in claim 1, characterized in that, The automatic fertilizer application mechanism (5) includes: An electric telescopic rod (501) is installed at the middle position of the top of the fertilizer tube (2). A piston (502) is installed on the inner wall of the fertilizer tube (2). The bottom end of the electric telescopic rod (501) passes through the fertilizer tube (2) and is connected to the top end of the piston (502).

3. The multi-channel, distributed irrigation device for farmland as described in claim 1, characterized in that, A discharge pipe (503) is connected below the fertilizer pipe (2), and the bottom end of the discharge pipe (503) is connected to the main pipe (1). A feed pipe (505) is connected to one side of the outer wall below the fertilizer pipe (2), and a mixing tank (506) is connected to one end of the feed pipe (505). A second solenoid valve (504) is installed on the outer wall of both the feed pipe (505) and the discharge pipe (503).

4. The multi-channel, distributed irrigation device for farmland as described in claim 1, characterized in that, Photovoltaic panels (7) are installed on the top of both sides of the top frame (9), and a storage battery (6) is installed on the inner side of the top frame (9) below the battery (8).

5. The multi-channel, distributed irrigation device for farmland as described in claim 1, characterized in that, The adjustment mechanism (12) includes: Mounting plates (1201) are installed on the inner wall of the dripper (11). A rotating shaft (1204) is movably mounted on the bottom of the mounting plate (1201) via a bearing. A baffle (1206) is connected to the bottom end of the rotating shaft (1204). A fixing plate (1207) is installed on the inner wall of the dripper (11) below the baffle (1206). A through hole (1205) is provided on one side of the fixing plate (1207).

6. The multi-channel, distributed irrigation device for farmland according to claim 5, characterized in that, The top view of the baffle (1206), the fixing plate (1207) and the through hole (1205) are all semi-circular, and a sealing gasket is connected to the bottom of the baffle (1206).

7. The multi-channel, distributed irrigation device for farmland according to claim 5, characterized in that, The worm (1202) is movably mounted on the inner wall of the dripper (11) via a bearing. A servo motor (1208) is mounted on the outer wall of the dripper (11). The output end of the servo motor (1208) is connected to one end of the worm (1202) via a drive shaft. A worm wheel (1203) is mounted on the outer wall of the rotating shaft (1204). A meshing transmission structure is formed between the worm wheel (1203) and the worm (1202).

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