Water and fertilizer integrated automatic irrigation device

Abstract

The invention relates to a water and fertilizer integrated automatic irrigation device which comprises a head hub, a water delivery and distribution pipe network and a terminal irrigation emitter which are sequentially connected, the head hub is communicated with a main pipe, the main pipe is communicated with a branch pipe, the branch pipe is provided with a water leakage opening, a three-way Haff joint is arranged outside the branch pipe in a sealing and sleeving mode, and a fixing frame is arranged outside the branch pipe in a clamping and sleeving mode. A two-way connector is arranged on the fixing frame, a hose is connected between the three-way Haff joint and the two-way connector in a threaded sealing mode, and the two-way connector is connected with a drip irrigation head in a threaded sealing mode. The clamping position of the fixing frame on the branch pipe is directly adjusted, and the fixing frame binds the hose, the bidirectional connector and the drip irrigation head, so that the position of the drip irrigation head can be indirectly adjusted through movement of the fixing frame, and the drip irrigation head is accurately aligned with crops; meanwhile, the branch pipes are connected with the drip irrigation heads through the hoses, and when the fixing frame moves, the hoses can be flexibly deformed and do not hinder the conveying of the water and fertilizer mixed liquid, so that the irrigation system is adaptive to planting intervals of different crops, and the irrigation system has higher universality.

Description

Technical Field

[0001] The invention belongs to the technical field of irrigation devices, and in particular relates to a water-fertilizer integrated automatic irrigation device. Background Art

[0002] The integrated water and fertilizer automated irrigation device organically integrates cutting-edge technologies such as automatic control, sensors, and the Internet of Things. It not only achieves precise control of irrigation and fertilization, but also significantly improves the utilization efficiency of water resources and fertilizers, becoming a powerful tool for modern precision agriculture.

[0003] In actual application scenarios, drip irrigation has become an ideal choice for precision fertilization and irrigation due to its outstanding characteristics of high efficiency and water saving. In the integrated water and fertilizer automated irrigation device, the entire system operation is precisely controlled by the controller. With the help of the soil moisture sensor, the device can obtain real-time moisture information inside the soil. Once the soil moisture drops below the preset threshold, the controller will quickly issue a command to start the water pump and related valves. According to the pre-set irrigation and fertilization amounts, the prepared water-fertilizer mixture is transported to the dripper through the pipeline system, thereby achieving precise drip irrigation.

[0004] Although this system has many advantages, it still has certain limitations in actual use. For some existing drip irrigation systems, the dripper spacing is fixed after the drip irrigation pipe is installed, which lacks flexibility. This relatively fixed dripper layout can only adapt to some crops with relatively similar planting spacing. Faced with a rich variety of crops, it is difficult for staff to easily adjust the dripper spacing according to the water requirements and planting spacing of different crops. This not only greatly limits the scope of application of the drip irrigation system, but also requires a lot of manpower and material resources to re-lay and install the drip irrigation pipes and drippers when the type of crop planted is changed, resulting in a waste of resources. To this end, we proposed an integrated water and fertilizer automatic irrigation device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a water-fertilizer integrated automatic irrigation device to solve the problems existing in the background technology.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows: An integrated water and fertilizer automatic irrigation device includes a head hub, a water distribution network and a terminal emitter connected in sequence. The head hub is used to process, mix, pressurize and regulate water and fertilizer to provide qualified water-fertilizer mixture for subsequent transportation; The water distribution network is used to transport the water-fertilizer mixture treated by the head hub to various crop areas in the field; The terminal sprinkler is used to apply the water-fertilizer mixture delivered by the water supply and distribution network to the location of the crops; Wherein, the water supply and distribution network includes: a main pipe connected to the head hub; A plurality of branch pipes, each of the branch pipes is connected to the main pipe; Wherein, the terminal injector includes: A plurality of three-way half joints, wherein a plurality of water leakage openings are opened on the outside of any branch pipe, and each of the three-way half joints is sealed and sleeved on the outside of the branch pipe and corresponds to each of the water leakage openings one by one; A fixing frame, wherein the center position of the end surface of the fixing frame is clamped and sleeved on the outside of the branch pipe; a bidirectional connector, the bidirectional connector being arranged on the fixing frame; A hose, one end of which is threadedly and sealedly connected to the inner wall of the branch pipe housing of the three-way half joint, and the other end of which is threadedly and sealedly connected to the two-way connector near the side of the three-way half joint; A drip irrigation head is threadedly and sealedly connected to the two-way connector at a side away from the three-way half joint.

[0007] It is further defined that the head hub includes a water and fertilizer integrated machine, a fertilizer tank and a water pump; The water-fertilizer integrated machine, the fertilizer tank, and the water pump are all placed on the ground; A feeding pipe is connected between the water-fertilizer integrated machine and the fertilizer tank; The water inlet of the water pump is connected to a water pumping pipe, and the water outlet of the water pump is connected to the water-fertilizer integrated machine through a water delivery pipe; The water-fertilizer integrated machine is communicated with the main pipe, and a pressure pump is provided on the main pipe.

[0008] It is further defined that the fixing frame is provided with an adjustment assembly; the adjustment assembly comprises: An adjustment block, wherein a slide rail is provided on the end face edge of the fixing frame, the adjustment block is slidably arranged inside the slide rail, and the adjustment block is fixedly sleeved on the outside of the bidirectional connector; a rubber sheet, the rubber sheet being fixedly connected to the inner wall of the slide rail, and a limiting groove matching the rubber sheet being formed on a side of the adjustment block facing the branch pipe; An adjusting piece, a through slot communicating with the slide rail is opened on the side of the fixing frame, and the adjusting pieces are fixedly connected to each other and are located inside the through slot.

[0009] It is further defined that the drip irrigation head includes a connecting pipe, an outer shell and an inner core; One end of the connecting pipe is threadedly and sealedly connected to the two-way connector on a side away from the three-way half joint; The shell is connected to the opening at the other end of the connecting pipe, and a plurality of water spray holes are formed on the outer side of the shell away from the connecting pipe; The inner core is sealed and slides inside the outer shell. A T-shaped ejector pin is fixed inside the inner core. A sliding groove is provided at one end of the inner core facing the T-shaped ejector pin. A blocking block is provided for sliding and sealing the sliding groove. An elastic member is provided between the blocking block and the sliding groove. A cavity is provided inside the inner core, a plurality of water inlet holes are provided between the cavity and the chute, a drip outlet is provided at one end of the inner core extending out of the outer shell, and a water outlet hole is provided between the drip outlet and the cavity.

[0010] It is further defined that the fixing frame is further provided with a trigger assembly, and the trigger assembly includes: an arc-shaped trigger plate, the arc-shaped trigger plate being fixedly connected to an end of the fixing frame close to the drip irrigation head, and an end of the arc-shaped trigger plate facing the drip irrigation head being in contact with the inner core; A water leakage groove is provided on the arc-shaped trigger plate, and the water outlet hole and the water leakage groove are located on the same vertical plane.

[0011] It is further defined that a supporting frame is fixed under the fixing frame and the arc-shaped trigger plate.

[0012] It is further defined that a filter cartridge is provided at the end of the water suction pipe.

[0013] It is further defined that a solenoid valve is provided on a side of each branch pipe close to the main pipe.

[0014] Beneficial effects of the present invention: 1. By setting a movable fixing frame on the branch pipe, the hose, two-way connector and drip irrigation head are bound together. The position of the fixing frame can be directly adjusted to change the position of the drip irrigation head. Compared with the existing fixed-position drip irrigation heads, it is possible to adapt to different crop planting spacing without re-laying the pipes, reducing manpower and material resources.

[0015] 2. Through the adjustment components (adjustment blocks, slide rails, adjustment plates, etc.) on the fixed frame, combined with the curved structure of the fixed frame and the 50-degree notch design, the drip irrigation head can be adjusted at multiple angles in the vertical plane. Compared with existing structures with limited adjustment range, it can accurately adapt to different planting positions of the same crop, improving the flexibility of irrigation coverage.

[0016] 3. Through the coordination of the arc-shaped trigger plate and the inner core of the drip irrigation head, combined with the rotation operation of the adjustment component, the switching between drip irrigation and sprinkler irrigation can be achieved. Compared with the existing single irrigation method structure, it can meet the irrigation needs of crops in different growth stages and enhance the applicability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further illustrated by means of the following non-limiting examples.

[0018] Figure 1 This is a structural schematic diagram of a water-fertilizer integrated automatic irrigation device of the present invention; Figure 2 This is a partial structural diagram of a water-fertilizer integrated automatic irrigation device of the present invention. Figure 1 ; Figure 3 This is a partial cross-sectional structural diagram of a water-fertilizer integrated automatic irrigation device of the present invention; Figure 4 This is a partial structural diagram of a water-fertilizer integrated automatic irrigation device of the present invention. Figure 2 ; Figure 5 This is a schematic cross-sectional view of a drip irrigation head of a water-fertilizer integrated automatic irrigation device according to the present invention; Figure 6 This is a schematic diagram of the drip irrigation head sprinkler structure of a water-fertilizer integrated automatic irrigation device of the present invention.

[0019] The main component symbols are described as follows: Main pipe 100, branch pipe 101, three-way half joint 102, leaking port 103, fixing frame 104, two-way connector 105, hose 106, drip irrigation head 107, Water and fertilizer integrated machine 200, fertilizer tank 201, water pump 202, feed pipe 203, water pump 204, water pipe 205, pressure pump 206, Adjustment block 300, slide rail 301, rubber sheet 302, adjustment sheet 303, through slot 304, Connecting pipe 400, outer shell 401, inner core 402, water spray hole 403, T-shaped ejector pin 404, chute 405, block 406, elastic member 407, cavity 408, water inlet 409, drip port 410, water outlet 411, Arc trigger plate 500, water leakage groove 501, Support frame 600, filter cartridge 601, solenoid valve 602. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-6 As shown, a water-fertilizer integrated automatic irrigation device includes a head hub, a water distribution network and a terminal emitter connected in sequence. The head hub is used to process, mix, pressurize and regulate water and fertilizer to provide qualified water-fertilizer mixture for subsequent transportation; The water distribution network is used to transport the water-fertilizer mixture treated at the headwater hub to various crop areas in the field; Terminal sprinklers are used to apply the water-fertilizer mixture delivered from the water distribution network to the crop locations; The water transmission and distribution network includes: Main pipe 100, main pipe 100 is connected with the head hub; A plurality of branch pipes 101, each branch pipe 101 is connected to the main pipe 100; Among them, the terminal injector includes: A plurality of three-way half joints 102 are provided, and a plurality of water leakage openings 103 are opened on the outside of any branch pipe 101. Each three-way half joint 102 is sealed and sleeved on the outside of the branch pipe 101, and corresponds to each water leakage opening 103 one by one; The fixing frame 104 is provided with a clamping sleeve at the center of the end surface thereof on the outside of the branch pipe 101; A two-way connector 105 is provided on the fixing frame 104; Hose 106, one end of which is threadedly and sealedly connected to the inner wall of the branch pipe shell of the three-way half joint 102, and the other end of which is threadedly and sealedly connected to the two-way connector 105 near the side of the three-way half joint 102; The drip irrigation head 107 is threadedly and sealedly connected to the two-way connector 105 at a side away from the three-way half joint 102.

[0022] The head hub, as the core control and processing unit of the entire irrigation system, is responsible for mixing, processing, pressurizing and regulating water and fertilizer, providing a basis for the subsequent water distribution network to transport qualified water-fertilizer mixture.

[0023] The main pipe 100 is connected to the head hub and serves as the main conveying channel to convey the water-fertilizer mixture output from the head hub to each branch pipe, playing the role of centralized conveying and diversion.

[0024] The branch pipes 101 are all connected to the main pipe 100 and are responsible for further distributing the water-fertilizer mixture delivered by the main pipe 100 to different crop areas in the field, thereby achieving targeted delivery to crops in different areas.

[0025] The three-way half joint 102 is used to draw out the water-fertilizer mixture in the branch pipe 101 from the leaking port 103, while ensuring the sealing of the connection to prevent liquid leakage and provide an interface for subsequent liquid transportation through the hose 106.

[0026] The fixing frame 104 mainly plays a fixing and supporting role, stably installing the two-way connector 105, hose 106, drip irrigation head 107 and other components on the branch pipe 101 to ensure the stability of the entire terminal emitter structure.

[0027] The two-way connector 105 is mounted on the fixing frame 104. One end of the connector is connected to the hose 106 through a threaded seal, and the other end is connected to the drip irrigation head 107 through a threaded seal. It connects the hose 106 and the drip irrigation head 107, allowing the water-fertilizer mixture to flow smoothly from the hose 106 into the drip irrigation head 107 while ensuring the sealing of the connection parts.

[0028] The hose 106 has a certain degree of flexibility and can be bent in accordance with the adjustment of the position of the drip irrigation head 107 to transport the water-fertilizer mixture drawn out from the three-way half joint 102 to the interior of the drip irrigation head 107 .

[0029] The drip irrigation head 107 is used to apply the transported water-fertilizer mixture to the location of the crops, thereby achieving drip irrigation of the crops.

[0030] The first hub includes a water and fertilizer integrated machine 200, a fertilizer tank 201 and a water pump 202; The water and fertilizer integrated machine 200, the fertilizer tank 201 and the water pump 202 are all placed on the ground; A feeding pipe 203 is connected between the water and fertilizer integrated machine 200 and the fertilizer tank 201; The water inlet of the water pump 202 is connected to a water pumping pipe 204, and the water outlet of the water pump 202 is connected to the water-fertilizer integrated machine 200 via a water delivery pipe 205; The integrated water and fertilizer machine 200 is connected to the main pipe 100 , and a pressure pump 206 is provided on the main pipe 100 .

[0031] The water and fertilizer integrated machine 200, placed on the ground, is the key equipment for mixing water and fertilizer; It receives water from the water pump 202 and fertilizer from the fertilizer tank 201, and mixes the two in proportion through an internal control system to form a water-fertilizer mixture that meets the needs of crops.

[0032] A fertilizer tank 201 is placed on the ground and is used to store fertilizer to be used; Among them, the water-fertilizer integrated machine 200 is connected with the water-fertilizer integrated machine 200 through the feed pipe 203, and the water-fertilizer integrated machine 200 can extract the fertilizer stored in the fertilizer tank 201 to provide raw materials for water-fertilizer mixing.

[0033] The water pump 202 is placed on the ground and serves as a power source. It draws water from an external source such as a water source or a reservoir through a water pumping pipe 204 connected to its water inlet, and then delivers the drawn water to the water-fertilizer integrated machine 200 through a water pipe 205 connected to its water outlet, providing a water flow basis for water and fertilizer mixing.

[0034] The pressure pump 206 is installed on the main pipe 100. Its function is to pressurize the water-fertilizer mixture in the main pipe 100, increase the delivery pressure and flow rate of the mixture in the water distribution network, ensure that the mixture can be smoothly delivered to various crop areas in the field, and meet the irrigation needs of different distances and heights.

[0035] The fixing frame 104 is provided with an adjustment component; the adjustment component includes: The adjustment block 300 and the end edge of the fixed frame 104 are provided with a slide rail 301. The adjustment block 300 is slidably arranged inside the slide rail 301 and the adjustment block 300 is fixedly sleeved on the outside of the two-way connector 105. The rubber sheet 302 is fixedly connected to the inner wall of the slide rail 301. A limiting groove matching the rubber sheet 302 is formed on the side of the adjustment block 300 facing the branch pipe 101; The adjusting piece 303 and the fixing frame 104 are provided with a through slot 304 on the side thereof, which is communicated with the slide rail 301 . The adjusting pieces 303 are fixedly connected to each other and are located inside the through slot 304 .

[0036] The adjustment component is used to achieve flexible adjustment of the position of the drip irrigation head 107 to adapt to the water demand of crops planted at different positions in the vertical plane direction. It is the core structure that improves the flexibility of the device; wherein: The regulating block 300 can drive the two-way connector 105 and the hose 106 and drip irrigation head 107 connected thereto to rotate around the branch pipe 101 by sliding in the slide rail 301 , thereby changing the irrigation direction of the drip irrigation head 107 .

[0037] The slide rail 301 provides a sliding track for the adjustment block 300 , limits the moving path of the adjustment block 300 , and ensures that the adjustment block 300 drives the drip irrigation head 107 to move stably along a preset direction.

[0038] The rubber sheet 302 is fixed to the inner wall of the slide rail 301 and matches the limiting groove on the adjustment block 300; The rubber sheet 302 is stuck in the limiting groove, thereby limiting the adjustment block 300 inside the slide rail 301, thereby preventing the adjustment block 300 from sliding out of the slide rail 301 and affecting the adjustment of the drip irrigation head 107; The elasticity and friction of the rubber sheet 302 are used to perform damping, limiting, and fixing of the adjustment block, so as to prevent displacement due to factors such as vibration, thereby affecting the irrigation of crops by the drip irrigation head 107 .

[0039] The adjusting piece 303 is fixedly connected to the adjusting block 300 and is located in the through slot 304 on the side of the fixing frame 104; The staff can move the adjusting piece 303 to drive the adjusting block 300 to slide in the slide rail 301 , thereby providing a convenient operating component for the movement of the adjusting block 300 and facilitating manual adjustment of the position of the drip irrigation head 107 .

[0040] The through slot 304 not only provides a moving space for the adjusting piece 303 to ensure that the adjusting piece 303 can drive the adjusting block 300 to slide smoothly, but also limits the moving range of the adjusting piece 303 and cooperates with the slide rail 301 to ensure the stability of the adjustment process.

[0041] The drip irrigation head 107 includes a connecting tube 400, an outer shell 401 and an inner core 402; One end of the connecting pipe 400 is threadedly and sealedly connected to the two-way connector 105 at a side away from the three-way half joint 102; The housing 401 is connected to the opening at the other end of the connecting pipe 400. A plurality of water spray holes 403 are provided on the outer side of the housing 401 away from the connecting pipe 400. The inner core 402 slides in a sealed manner inside the outer shell 401. A T-shaped ejector pin 404 is fixed inside the inner core 402. A sliding groove 405 is provided on one end of the inner core 402 facing the T-shaped ejector pin 404. The sliding groove 405 is slidably sealed with a block 406. An elastic member 407 is provided between the block 406 and the sliding groove 405. A cavity 408 is defined inside the inner core 402 , a plurality of water inlet holes 409 are defined between the cavity 408 and the chute 405 , a drip outlet 410 is defined at one end of the inner core 402 extending from the outer shell 401 , and a water outlet 411 is defined between the drip outlet 410 and the cavity 408 .

[0042] The drip irrigation head 107, as the core component of the terminal emitter, is responsible for applying the water-fertilizer mixture to the crop location.

[0043] The connecting pipe 400 serves to connect the two-way connector and the housing, ensuring that the water-fertilizer mixture can be stably transported from the two-way connector to the inside of the housing. At the same time, the threaded sealing design can prevent liquid leakage.

[0044] The outer shell 401 is connected to the opening at the other end of the connecting tube, providing a sealed sliding space for the inner core; Among them, a plurality of water spray holes on the outside of the shell 401 away from the side of the connecting pipe can discharge the water-fertilizer mixture in a spraying form under specific conditions to expand the irrigation range.

[0045] The inner core 402 is a key component for switching the irrigation mode; The internal structure of the inner core 402 can guide the water-fertilizer mixture to flow to different outlets (spray holes or drip holes), and change the irrigation state by sliding relative to the outer shell; The outer cross-section of the end of the inner core 402 extending into the outer shell 401 is set to be stepped, and the maximum area is larger than the area of ​​the inner core 402 extending out of the outer shell 401, so as to prevent the inner core 402 from escaping from the inner shell 401.

[0046] The T-shaped ejector pin 404 is fixed inside the inner core. When the inner core slides, the T-shaped ejector pin can push the block to move in the chute, thereby controlling the opening and closing of the water inlet hole and adjusting the path of the water-fertilizer mixture into the cavity.

[0047] The chute 405 provides a sliding track for the blocking block and forms a sealing fit with the blocking block to prevent the water-fertilizer mixture from leaking from the gap in the chute.

[0048] A block 406, which can block the opening of the chute under the action of the elastic member; Among them, when the blocking block 406 approaches the T-shaped ejector pin, the gap between the outer shell 401 and the inner core 402 will be reduced. When there is no gap between the outer shell 401 and the inner core 402, the T-shaped ejector pin will push the blocking block to slide into the deep of the slide groove and compress the elastic part. At the same time, the water inlet hole will be exposed, so that the water-fertilizer mixture can enter the cavity through the water inlet hole.

[0049] The elastic member 407 provides elastic force for the blocking block, so that it can tightly seal the water inlet hole when there is no external force, ensuring that the water-fertilizer mixture flows along the preset path.

[0050] The cavity 408 serves as a temporary storage space for the water-fertilizer mixture, receives the liquid flowing in from the water inlet, and transports it to the drip outlet through the water outlet, thereby realizing drip irrigation of crops.

[0051] The water inlet hole 409 is a passage for the water-fertilizer mixture to enter the cavity, and its opening and closing state is controlled by a blocking block.

[0052] The water outlet 411 guides the water-fertilizer mixture in the cavity to the drip outlet to complete the drip irrigation operation.

[0053] The drip port 410 is used to discharge the water-fertilizer mixture in the cavity in the form of drip irrigation to achieve point irrigation.

[0054] The fixing frame 104 is also provided with a trigger assembly, which includes: The arc-shaped trigger plate 500 is fixedly connected to the end of the fixing frame 104 close to the drip head 107, and the end of the arc-shaped trigger plate 500 facing the drip head 107 abuts against the inner core 402; A water leakage groove 501 is formed on the arc-shaped trigger plate 500 , and the water outlet 411 and the water leakage groove 501 are located on the same vertical plane.

[0055] The trigger assembly, by cooperating with the inner core 402 of the drip irrigation head 107, controls the working state of the drip irrigation head 107, such as switching the irrigation mode, and is a key structure for realizing the automatic adjustment of the drip irrigation head; wherein: The arc-shaped trigger plate 500 is fixedly connected to the end of the fixing frame 104 close to the drip head 107 and abuts against the end of the inner core 402 extending from the outer shell 401; When the drip irrigation head 107 is within the range of the arc-shaped trigger plate 500, the inner core 402 slides into the outer shell 401 due to the obstruction of the arc-shaped trigger plate 500. At this time, the upper end surface of the inner core 402 abuts the upper wall of the outer shell 401, and the T-shaped ejector pin 404 pushes the blocking block 406 as the inner core 402 slides into the outer shell 401 until the blocking block 406 slides into the chute 405 and compresses the elastic member 407. At this time, the water inlet hole 409 located on the inner wall of the chute 405 is exposed, connecting the cavity 408, the chute 405, and the interior of the outer shell 401. In this way, the water-fertilizer mixture can enter the cavity 408 and enter the drip port 410 through the water outlet hole 411, finally achieving drip irrigation for the crops. When the drip irrigation head 107 is outside the range of the arc-shaped trigger plate 500, there is no obstruction from the arc-shaped trigger plate 500, and no external force is applied to push the inner core 402 toward the T-shaped ejector pin 404. Consequently, due to the elasticity of the elastic member 407, the T-shaped ejector pin 404 does not push against the block 406, thereby revealing the water inlet 409. After the water-fertilizer mixture enters the outer shell 401, it flows directly through the gap between the outer shell 401 and the inner core 402, and is finally ejected from the various spray holes 403, thereby achieving sprinkler irrigation for the crops. Both of the above-mentioned irrigation methods can be adjusted by the adjustment plate 303. When the staff pulls the adjustment plate 303, the drip irrigation head 107 will be driven to rotate around the branch pipe 101 along the slide rail 301. When the drip irrigation head 107 is outside the range of the arc-shaped trigger plate 500, the drip irrigation head 107 can be used for sprinkler irrigation. When the drip irrigation head 107 enters the range of the arc-shaped trigger plate 500, the arc-shaped trigger plate 500 squeezes the inner core 402, blocking the channel for the water-fertilizer mixture to flow during sprinkler irrigation and opening the channel for drip irrigation, thereby achieving flexible adjustment of different irrigation methods.

[0056] The water leakage groove 501 is in the same vertical plane as the dripping port 410 of the drip irrigation head 107; When the inner core 402 is pushed to a specific position by the arc-shaped trigger plate 500, the water-fertilizer mixture flowing out of the drip port 410 can pass through the leakage groove 501 and drip onto the crops smoothly, avoiding the accumulation of liquid at the contact point between the arc-shaped trigger plate 500 and the inner core 402, thereby ensuring the smooth progress of the drip irrigation operation.

[0057] A supporting frame 600 is fixed under the fixing frame 104 and the arc-shaped trigger plate 500 .

[0058] The support frame 600 is fixed below the fixing frame 104 and the arc-shaped trigger plate 500, and mainly plays the role of supporting and lifting; In particular, by contacting the ground, the fixing frame 104, the arc-shaped trigger plate 500 and the drip irrigation head 107 connected thereto, the branch pipe 101, the adjustment assembly and other overall structures are raised to a suitable height to prevent these components from being directly in contact with the ground and causing wear, contamination or clogging by soil, while ensuring that the drip irrigation head 107 can be aligned with the irrigation position of the crops, such as near the roots.

[0059] A filter cartridge 601 is provided at the end of the water extraction pipe 204 .

[0060] The filter cartridge 601 usually contains filter material (such as filter screen, filter cotton, etc.); Among them, when the water source is extracted by the water pump 204, the water first passes through the filter cartridge 601, and impurities in the water (such as mud, aquatic plants, stones, etc.) will be intercepted by the filter cartridge 601, preventing impurities from entering the water pump 204, the water pump 202 and the subsequent water and fertilizer integrated machine 200, the water supply and distribution network and the terminal emitter, thereby avoiding problems such as pipeline blockage, equipment wear or blockage of the drip irrigation head 107.

[0061] A solenoid valve 602 is provided on one side of each branch pipe 101 close to the main pipe 100 .

[0062] The solenoid valve 602 is an automatic valve controlled by electromagnetics. Its working principle is to control the opening and closing of the valve core by turning on and off the power of the electromagnetic coil; When the electromagnetic coil is energized, the valve core opens, allowing the water-fertilizer mixture to flow from the main pipe 100 into the branch pipe 101; When the electromagnetic coil is powered off, the valve core is closed, cutting off the passage between the main pipe 100 and the branch pipe 101 , and stopping the transportation of the water-fertilizer mixture to the branch pipe 101 .

[0063] When planting different crops, the position of the terminal sprinkler needs to be adjusted according to the different crops, as follows: S1. Adjustment of terminal sprinkler position according to different planting distances of different crops: The staff can directly adjust the position of the clamping sleeve of the fixing frame 104 on the branch pipe 101, thereby indirectly adjusting the position of the drip irrigation head 107 to adapt to the planting of different crops; The fixing frame 104 binds the hose 106, the two-way connector 105 and the drip irrigation head 107 together, so the position of the drip irrigation head 107 can be adjusted by moving the fixing frame 104 so that the drip irrigation head 107 can be aligned with the crops for irrigation. The branch pipe 101 and the drip irrigation head 107 are connected via a hose 106 , so that the transportation of the water-fertilizer mixture will not be affected when the position of the fixing frame 104 changes.

[0064] For example, wheat is planted close together (row spacing is about 15-20 cm), so drip irrigation heads need to be densely arranged to provide precise watering. Tomatoes are planted close together (row spacing is about 60-90 cm), so drip irrigation heads need to be spaced farther apart and aimed at the roots of the plants. The staff directly slides the fixing frame 104 on the branch pipe 101 according to the spacing between the two crops. Because the fixing frame 104 is connected to the hose 106, the two-way connector 105 and the drip irrigation head 107, when the fixing frame 104 is moved, the hose 106 can be flexibly stretched and contracted without affecting the water and fertilizer delivery. For example, when planting tomatoes, the spacing between the fixed frames is increased to 70 cm, and the drip irrigation heads 107 are aimed at the roots of the tomatoes; when planting wheat, the spacing is reduced to 18 cm to cover dense wheat seedlings, solving the problem of spacing adaptation for different crops.

[0065] S2. Adjustment of terminal sprinkler position for different planting locations of the same crop: The staff can move the adjustment piece 303 to drive the adjustment block 300 to rotate along the slide rail 301 around the branch pipe 101, so as to adjust the direction of the drip port 410 of the drip irrigation head 107; Among them, the entire fixing frame 104 is set to an arc structure, and its notch is set to 50 degrees, which is convenient for clamping the branch pipe 101 in the center position of the fixing frame 104, and can also make the existing slide rail 301 longer, so that when the adjusting piece 303 is pulled, the drip irrigation head 107 can be adjusted at multiple angles on the vertical plane, thereby adapting to the planting of crops in different positions.

[0066] For example, if tomatoes are planted between the rows on both sides of the branch pipe 101, the adjusting piece 303 is pulled to drive the adjusting block 300 to rotate along the slide rail 301 of the arc-shaped fixing frame 104, and the dripping port 410 of the drip irrigation head 107 is turned to the row. If the tomatoes are scattered in the same row (misaligned between plants), continue to rotate the adjustment plate 303 and use the slide rail 301 to adjust the drip irrigation head 107 at multiple angles in the vertical plane, so that the drip outlet 410 can be accurately aligned with each tomato plant, solving the irrigation coverage problem of the same crop at different locations.

[0067] S3. Adjustment of crop irrigation methods: The staff can adjust the irrigation mode of crops by turning the adjustment plate 303 to drive the adjustment block 300 to rotate along the slide rail 301 around the branch pipe 101, and cooperate with the control of the arc trigger plate 500; Taking the horizontal cross section of the branch pipe 101 as a standard, the highest point of the arc-shaped trigger plate 500 is flush with the highest point of the arc-shaped trigger plate 500: When the adjusting plate 303 is pulled, the adjusting block 300 and the drip irrigation head 107 are driven to rotate around the branch pipe 101. If the drip irrigation head 107 is below the horizontal cross section of the branch pipe 101, the arc-shaped trigger plate 500 will abut against the lower end of the inner core 402, so that the upper end of the inner core 402 and the upper wall of the outer shell 401 will be sealed and abutted, thereby closing the channel between the inner core 402 and the outer shell 401. At the same time, the T-shaped ejector pin 404 will push the blocking block 406 away, causing the blocking block 406 to slide into the interior of the chute 405 and compress the elastic member 407. The extension of the blocking block 406 will expose the water inlet hole 409, thereby connecting the interior of the outer shell 401, the chute 405 and the cavity 408. In this way, the water-fertilizer mixture can pass through the water inlet hole 409, the cavity 408 and the water outlet hole 411 in sequence, and finally be discharged from the drip port 410, thus realizing drip irrigation of crops. If the drip irrigation head 107 is above the horizontal cross-section of the branch pipe 101, there is no abutment of the arc-shaped trigger plate 500, and there is no external force pushing the inner core 402. Under the action of the elastic member 407, the T-shaped ejector pin 404 will not push the blocking block 406 to slide into the chute 405. At the same time, as the water-fertilizer mixture enters the outer shell 401, it will flow into the channel between the outer shell 401 and the inner core 402, and finally be sprayed out from the various water spray holes 403, thus achieving sprinkler irrigation for crops.

[0068] For example, during the seedling stage of fruit trees, the root system is shallow and the water demand is dispersed, so sprinkler irrigation is suitable for humidification and uniform water supply; during the fruiting stage of fruit trees, the root system is deep and precise water supply is required to ensure fruit production, so drip irrigation is suitable for saving water and reaching the roots directly; Seedling stage (sprinkler irrigation): Move the adjustment plate 303 to rotate the drip irrigation head 107 above the horizontal cross section of the branch pipe 101. At this time, no arc-shaped trigger plate 500 abuts against the inner core 402. The elastic member 407 allows the block 406 to block the water inlet 409, so that water and fertilizer can enter the passage between the outer shell 401 and the inner core 402, and be sprayed from the water spray hole 403, covering the area around the seedlings, thus achieving sprinkler irrigation; Fruiting period (drip irrigation): Move the adjustment plate 303 in the opposite direction to rotate the drip irrigation head 107 below the horizontal cross section of the branch pipe 101. The arc-shaped trigger plate 500 contacts the lower end of the inner core 402, and the upper end of the inner core 402 seals against the upper wall of the outer shell 401. At the same time, the T-shaped ejector pin 404 pushes away the block 406, and water and fertilizer drip out from the drip port 410 through the water inlet hole 409, the cavity 408, and the water outlet hole 411, directly reaching the roots of the fruit trees, thereby meeting the irrigation method requirements for different growth periods.

[0069] In this embodiment, by directly adjusting the clamping position of the fixing frame on the branch pipe, since the fixing frame is bound with the hose, the two-way connector and the drip irrigation head, its movement can indirectly adjust the position of the drip irrigation head so that it is precisely aligned with the crops; at the same time, the branch pipe and the drip irrigation head are connected by a hose. When the fixing frame moves, the hose can be flexibly deformed without hindering the transportation of the water-fertilizer mixture, thereby adapting to different crop planting spacings, making the irrigation system more versatile.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. An integrated water and fertilizer automated irrigation device comprising a head hub, a water distribution network, and a terminal emitter connected in sequence, characterized in that: The head hub is used to process, mix, pressurize and regulate water and fertilizer to provide qualified water-fertilizer mixture for subsequent transportation; The water distribution network is used to transport the water-fertilizer mixture treated by the head hub to various crop areas in the field; The terminal sprinkler is used to apply the water-fertilizer mixture delivered by the water supply and distribution network to the location of the crops; Wherein, the water supply and distribution network includes: A main pipe (100), the main pipe (100) being in communication with the head hub; A plurality of branch pipes (101), each of the branch pipes (101) is connected to the main pipe (100); Wherein, the terminal injector includes: A plurality of three-way half joints (102), a plurality of water leakage openings (103) are opened on the outside of any branch pipe (101), and each of the three-way half joints (102) is sealed and sleeved on the outside of the branch pipe (101) and corresponds to each of the water leakage openings (103) one by one; A fixing frame (104), wherein the center position of the end surface of the fixing frame (104) is clamped and sleeved on the outside of the branch pipe (101); a bidirectional connector (105), the bidirectional connector (105) being arranged on the fixing frame (104); A hose (106), one end of the hose (106) is threadedly sealed connected to the inner wall of the branch pipe shell of the three-way half joint (102), and the other end is threadedly sealed connected to the two-way connector (105) near the side of the three-way half joint (102); A drip irrigation head (107) is threadedly sealed with the two-way connector (105) at a side away from the three-way half joint (102).

2. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: The head hub includes a water-fertilizer integrated machine (200), a fertilizer tank (201) and a water pump (202); The integrated water and fertilizer machine (200), the fertilizer tank (201), and the water pump (202) are all placed on the ground; A feeding pipe (203) is connected between the water-fertilizer integrated machine (200) and the fertilizer tank (201); The water inlet of the water pump (202) is connected to a water pumping pipe (204), and the water outlet of the water pump (202) is connected to the integrated water and fertilizer machine (200) via a water delivery pipe (205); The integrated water and fertilizer machine (200) is in communication with the main pipe (100), and a pressure pump (206) is provided on the main pipe (100).

3. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: An adjustment component is provided on the fixing frame (104); the adjustment component comprises: An adjusting block (300), wherein a slide rail (301) is provided on the edge of the end face of the fixing frame (104), the adjusting block (300) is slidably arranged inside the slide rail (301), and the adjusting block (300) is fixedly sleeved on the outside of the bidirectional connector (105); a rubber sheet (302), the rubber sheet (302) being fixedly connected to the inner wall of the slide rail (301), and a limiting groove matching the rubber sheet (302) being provided on a side of the adjustment block (300) facing the branch pipe (101); An adjusting piece (303) is provided on the side of the fixing frame (104) with a through slot (304) communicating with the slide rail (301), and the adjusting piece (303) is fixedly connected to the adjusting piece (303) and is located inside the through slot (304).

4. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: The drip irrigation head (107) comprises a connecting pipe (400), an outer shell (401) and an inner core (402); One end of the connecting pipe (400) is threadedly and sealedly connected to the side of the two-way connector (105) away from the three-way half joint (102); The housing (401) is in communication with an opening at the other end of the connecting pipe (400), and a plurality of water spray holes (403) are provided on the outside of the housing (401) on a side away from the connecting pipe (400); The inner core (402) is sealed and slides inside the outer shell (401), a T-shaped ejector pin (404) is fixed inside the inner core (402), a sliding groove (405) is provided at one end of the inner core (402) facing the T-shaped ejector pin (404), a blocking block (406) is slidably sealed on the sliding groove (405), and an elastic member (407) is provided between the blocking block (406) and the sliding groove (405); A cavity (408) is provided inside the inner core (402), a plurality of water inlet holes (409) are provided between the cavity (408) and the chute (405), a dripping port (410) is provided at one end of the inner core (402) extending out of the outer shell (401), and a water outlet hole (411) is provided between the dripping port (410) and the cavity (408).

5. The water-fertilizer integrated automatic irrigation device according to claim 4, characterized in that: The fixing frame (104) is also provided with a trigger component, and the trigger component comprises: an arc-shaped trigger plate (500), the arc-shaped trigger plate (500) being fixedly connected to one end of the fixing frame (104) close to the drip irrigation head (107), and the end of the arc-shaped trigger plate (500) facing the drip irrigation head (107) being in contact with the inner core (402); A water leakage groove (501) is provided on the arc-shaped trigger plate (500), and the water outlet hole (411) and the water leakage groove (501) are located on the same vertical plane.

6. The water-fertilizer integrated automatic irrigation device according to claim 5, characterized in that: A supporting frame (600) is fixed under the fixing frame (104) and the arc-shaped trigger plate (500).

7. The water-fertilizer integrated automatic irrigation device according to claim 2, characterized in that: A filter cartridge (601) is provided at the end of the water extraction pipe (204).

8. The water-fertilizer integrated automatic irrigation device according to claim 1, characterized in that: Each branch pipe (101) is provided with a solenoid valve (602) on one side close to the main pipe (100).

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