An automated water and fertilizer integrated machine for agricultural irrigation

Abstract

This invention relates to the field of agricultural fertilization and irrigation technology, and discloses an automated water and fertilizer integrated machine for agricultural irrigation. To solve the problem of limited water and fertilizer mixture ratios that necessitate machine shutdowns during irrigation, the water and fertilizer mixer utilizes an inlet pipe at one end to deliver water into its internal cavity, and a mixing outlet pipe at the other end to connect the water and fertilizer mixture to the irrigation pipeline. In the inlet chamber, fertilizer raw materials are added through a feed pipe, and a stirring mechanism mixes the water and fertilizer. This allows for water and fertilizer mixing in the inlet chamber and the discharge chamber to connect the mixed solution to the irrigation pipeline. Finally, after the solution is discharged from the discharge chamber, it is connected to the discharge end through the inlet pipe, and the mixed solution from the inlet end is output from the mixing outlet pipe to the irrigation pipeline, ultimately achieving continuous mixing and continuous output of the water and fertilizer mixture.

Description

Technical Field

[0001] This invention relates to the technical field of crop fertilization and irrigation, and in particular to an automated water and fertilizer integrated machine for agricultural irrigation. Background Technology

[0002] Agricultural irrigation and fertilization integrated machines are modern agricultural equipment that integrate irrigation and fertilization functions. Compared with traditional irrigation and fertilization methods, they save water and fertilizer. Through efficient irrigation methods such as drip irrigation and sprinkler irrigation, water and fertilizer are delivered directly to the roots of crops, reducing water evaporation and leakage, and also reducing fertilizer loss.

[0003] A search revealed that CN215648244U discloses an integrated irrigation and fertilization machine, which includes the following steps: First, water is injected into the mixing tank through the water inlet. Then, fertilizer is poured into the mixing tank through the feed hopper. Next, an electric lifting rod is activated, causing a connecting plate to slide within a chute. This sliding motion of the connecting plate moves a rack, which in turn rotates a gear. The gear's rotation then rotates a rotating rod, which in turn rotates a mixing rod and a U-shaped plate. The U-shaped plate's rotation, in turn, rotates a shaft and a crushing tooth. Through this coordinated structure, the crushing tooth breaks up clumps of fertilizer, accelerating its dissolution. Simultaneously, the rotating rod further accelerates the dissolution of the fertilizer and water. Once the fertilizer and water are fully dissolved, the water pump is activated. During operation, the pump draws the mixed fertilizer and water from the mixing tank through a suction pipe and sprays it from a misting nozzle through a drain pipe, applying the fertilizer and water to the crops. This achieves the effect of breaking up clumps of fertilizer for fertilization.

[0004] However, in practical agricultural applications, the limited capacity of the mixing tank leads to irrigation interruptions. Currently, the mixing tank capacity of mainstream equipment on the market is mostly 500L-2000L. For large-scale farmland or parks, a single batch of water-fertilizer mixture can only cover an irrigation area of ​​several to tens of acres. When the water-fertilizer solution in the mixing tank is used up, the machine must be stopped and clean water, fertilizer added, and mixed again. The entire preparation process takes about 15-30 minutes, forcing an interruption of irrigation operations. This interruption reduces the continuity and efficiency of irrigation. Summary of the Invention

[0005] This invention proposes an automated water and fertilizer integrated machine for agricultural irrigation, which has the advantages of continuous mixing and continuous output of water and fertilizer mixture, in order to solve the problem mentioned in the background art that the limited water and fertilizer mixture ratio in a single batch leads to the need to stop the machine during irrigation.

[0006] To achieve the above objectives, this application adopts the following technical solution: an automated water and fertilizer integrated machine for agricultural irrigation, comprising: a water and fertilizer mixer, which divides its interior into left and right mixing chambers using a central piston; and water inlet pipes / mixing pipes are symmetrically fixedly installed at both ends of the water and fertilizer mixer, with electromagnetic on / off valves installed between the water inlet pipes / mixing pipes and the water and fertilizer mixer; a feed pipe, symmetrically arranged on the top of the outside of the water and fertilizer mixer, with a one-way flow valve installed between the feed pipe and the water and fertilizer mixer; a motor, symmetrically arranged at both ends of the water and fertilizer mixer, with a stirring mechanism installed on the output shaft of the motor; and a positioning detection component, symmetrically arranged at the bottom of the outside of the water and fertilizer mixer, wherein when the central piston moves to the positioning detection component, the corresponding water inlet pipe / mixing pipe will be switched on or off, realizing the alternating discharge and preparation of water and fertilizer solution in the left and right mixing chambers of the water and fertilizer mixer.

[0007] Furthermore, the mixing mechanism consists of a drive base, a connecting plate, and a mixing component assembly. The drive base is movably installed on the inner end of the water-fertilizer mixer, and the drive base is coaxially and securely installed with the output shaft of the motor. The connecting plates are movably installed on both ends of the intermediate piston. The two ends of the mixing component assembly are respectively installed on the connecting plate and the drive base.

[0008] Furthermore, the first type of stirring assembly is a telescopic rod assembly.

[0009] Furthermore, the second type of stirring component is a reset push spring.

[0010] Furthermore, the telescopic rod assembly consists of a traction telescopic rod and a support telescopic rod, and an intermediate adjustment plate is fixedly installed on the outer side of the telescopic rod assembly; the traction telescopic rod is located between the intermediate adjustment plate and the connecting plate; the support telescopic rod is located between the intermediate adjustment plate and the drive seat; and the two ends of the reset push spring are fixed to the ends of the intermediate adjustment plate and the drive seat, respectively.

[0011] Furthermore, a rectangular filter groove is provided on the side of the drive seat, and the cross-sectional shape of the middle part of the rectangular filter groove is "eight".

[0012] Furthermore, a pull rod is fixedly installed on one side of the surface of the unblocking seat, and the pull rod is inserted into the drive seat. A spring is provided between the pull rod and the drive seat. A drive rod is fixedly installed at one end of the unblocking seat, and a push plate is fixedly installed on the inner side of the water-fertilizer mixer and on one side of the drive seat. An arc-shaped protrusion is provided on the inner side wall of the push plate.

[0013] Furthermore, a locking rod is threaded onto one end of the unblocking seat, a guide seat is fixedly installed on one end of the middle adjustment plate, and an annular inclined surface is provided on one side of the guide seat, while a locking ring groove is provided on the inner side of the middle adjustment plate.

[0014] Furthermore, an alarm detection component is fixedly installed on the middle of the outer side of the water-fertilizer mixer. When the middle piston is in the middle position for a long time, the alarm detection component will cause the alarm light to light up continuously after the delay timer stops.

[0015] Furthermore, a concentration detector is installed at the output end of the mixing pipe. When the concentration of the fertilizer solution flowing through the pipe deviates from the set concentration, the alarm light will flash.

[0016] The beneficial effects of the invention are as follows: In the field of intelligent agricultural power machinery, addressing the issue of limited water-fertilizer mixture in single-use machines leading to downtime during irrigation, this invention provides an automated water-fertilizer integrated machine for agricultural irrigation. This machine utilizes a central piston to divide its internal space into two relatively independent chambers. In practical applications, when irrigation is needed, water is introduced into the machine's internal chamber through an inlet pipe at one end. Simultaneously, fertilizer is added to the inlet chamber through a feed pipe. The stirring mechanism then mixes the water and fertilizer, ensuring the fertilizer dissolves evenly to form a water-fertilizer mixture. As water continues to flow into the machine's internal chamber from the inlet, the central piston discharges the water-fertilizer mixture from the outlet pipe into the irrigation pipeline.

[0017] After the water-fertilizer solution in the drain chamber is fully discharged, water is introduced into the drain chamber through the inlet pipe. Water is then poured into the drain chamber, pushing the intermediate piston back towards the original inlet. The already mixed water-fertilizer solution in the inlet is then discharged to the irrigation pipeline through the mixing pipe. In this way, the method described in this application ensures continuous preparation and output of the water-fertilizer mixture, preventing irrigation operations from stopping due to insufficient mixing of the water-fertilizer solution. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort: Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall internal planar cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the overall internal three-dimensional structure of the present invention; Figure 4 This is a schematic diagram showing the installation positions and three-dimensional structure of the components on the intermediate piston of the present invention; Figure 5 This is a schematic diagram showing the installation positions and three-dimensional structure of each component on the drive base of the present invention; Figure 6 This is a schematic diagram of the working state of the present invention when water enters from the left side and exits from the right side; Figure 7 This is a schematic diagram of the working state of the present invention when water enters from the right side and exits from the left side; Figure 8 This is a schematic diagram of the working state of the present invention when water enters from the right side and the middle piston leaks.

[0019] In the diagram: 1. Water-fertilizer mixer; 2. Alarm light; 201. Alarm detection component; 3. Feed pipe; 4. Water inlet pipe; 5. Mixing water drain pipe; 6. Motor; 7. Intermediate piston; 8. Connecting plate; 9. Telescopic rod assembly; 901. Traction telescopic rod; 902. Support telescopic rod; 10. Reset push spring; 11. Intermediate adjusting plate; 110. Locking ring groove; 12. Drive seat; 120. Rectangular filter tank; 13. Push plate; 14. Unblocking seat; 141. Locking rod; 142. Drive rod; 143. Pull rod; 15. Position detection component; 16. Guide seat. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, please refer to Figure 1 and Figure 2 As can be seen, the water-fertilizer mixer 1 can be fixed in the desired position using the mounting base at the bottom. Inside the water-fertilizer mixer 1, a central piston 7 is coaxially and sealed, dividing the interior into two relatively independent and sealed mixing chambers. Simultaneously, water inlet pipes 4 and mixing drain pipes 5 are symmetrically fixed at both ends of the water-fertilizer mixer 1, corresponding to the two mixing chambers inside. Furthermore, electromagnetic on / off valves are installed between the water inlet pipes 4 and the mixing drain pipes 5 and the water-fertilizer mixer 1. The control system allows for controllable connection between the water inlet pipes 4 and the mixing drain pipes 5 and the mixing chambers of the water-fertilizer mixer 1. Generally, the inlet pipe 4 is mainly connected to a water pump that controls the water output, while the mixing pipe 5, after passing through a flow meter and a concentration meter, is connected to the water supply network used for agricultural irrigation. Specifically, the flow meter detects the actual volume of liquid discharged from the mixing pipe 5; the concentration meter accurately reflects whether the concentration of the fertilizer solution output from the mixing pipe 5 meets the usage range. If the concentration remains too high or too low, the control system will cause the alarm light 2 to flash. Figure 2 and Figure 3It can be seen that the bottom of the water-fertilizer mixer 1 is symmetrically fixed with positioning detection components 15. When the middle piston 7 moves to the positioning detection component 15, the positioning detection component 15 will send a signal to the control system to inform the control system that the middle piston 7 has discharged the water-fertilizer liquid in the mixing chamber.

[0022] Based on this, combined Figures 1-3 It can be seen that the top of the water-fertilizer mixer 1 is symmetrically fixed with feed pipes 3, and the two feed pipes 3 are connected to the two mixing chambers in the water-fertilizer mixer 1. Each feed pipe 3 is connected to the water-fertilizer mixer 1 with a one-way flow valve. In this way, a certain amount of fertilizer raw materials can be injected into the inner cavity of the water-fertilizer mixer 1 through the feed pipes 3, so as to achieve the mixing of fertilizer and water in the mixing chamber of the water-fertilizer mixer 1.

[0023] from Figure 2 and Figure 3 It can be seen that motors 6 are fixedly installed coaxially and symmetrically at both ends of the water-fertilizer mixer 1, and the output shafts of the two motors 6 extend into the two mixing chambers of the water-fertilizer mixer 1 respectively. A stirring mechanism for stirring and mixing the mixing chambers is installed on the output shaft of the water-fertilizer mixer 1.

[0024] In practical applications, this first embodiment, for example... Figure 6 As shown, a water pump inputs water from the left-side inlet pipe 4. The control system uses the water pump to regulate the actual water input rate. Meanwhile, fertilizer raw materials are input into the inner cavity of the water-fertilizer mixer 1 via the left-side feed pipe 3. As the amount of water in the left-side mixing chamber of the water-fertilizer mixer 1 increases, it pushes the middle piston 7 towards the right until it contacts the right-side positioning detection component 15. During the rightward movement of the middle piston 7, the motor 6 drives the stirring mechanism to rotate within the mixing chamber of the water-fertilizer mixer 1, thereby achieving uniform mixing of the fertilizer raw materials and water within the mixing chamber.

[0025] When the intermediate piston 7 reaches the positioning detection component 15 on the right, the positioning detection component 15 sends a signal to the control system. The control system then closes the solenoid valve on the left water inlet pipe 4 and opens the solenoid valve on the right water inlet pipe 4. Simultaneously, the solenoid valve on the right mixing drain pipe 5 closes and the solenoid valve on the left mixing drain pipe 5 opens, and fertilizer raw materials are fed into the right mixing chamber of the water-fertilizer mixer 1 via the right feed pipe 3. Subsequently, as water is fed into the right mixing chamber of the water-fertilizer mixer 1 via the right water inlet pipe 4, the right motor 6 drives the stirring mechanism to rotate, thereby achieving mixing of water and fertilizer raw materials in the right mixing chamber.

[0026] As the water inlet pipe 4 introduces water into the right mixing chamber of the fertigation mixer 1, the water, being incompressible, increases in volume within the right chamber. This increases the pressure on the intermediate piston 7, causing it to move to the left. The piston 7 then directs the fertigation solution from the left mixing chamber through the left-side mixing pipe 5 into the irrigation network. During this process, the fertigation solution in the left mixing chamber of the fertigation mixer 1 is fed into the irrigation network, while the right mixing chamber prepares the fertigation solution.

[0027] Finally, when the middle piston 7 moves to the left position detection component 15, the solenoid valve on the left water inlet pipe 4 opens and the solenoid valve on the right water inlet pipe 4 closes; the solenoid valve on the left mixing drain pipe 5 closes and the right mixing drain pipe 5 opens. In this way, the water and fertilizer mixture in the right mixing chamber of the water and fertilizer mixer 1 is input into the irrigation network again through the mixing drain pipe 5.

[0028] Example 2 is a further improvement on Example 1. Please refer to Example 1. Figures 3-5 It can be seen that the mixing mechanism mainly consists of a drive base 12, a connecting plate 8, and a mixing component assembly. More specifically, the drive base 12 is movably mounted on the inner end of the water-fertilizer mixer 1 using bearings, and the drive base 12 is coaxially and securely mounted with the output shaft of the motor 6. There are two drive bases 12, and the two drive bases 12 are located at the two inner ends of the water-fertilizer mixer 1, respectively. The intermediate piston 7 has connecting plates 8 movably mounted on both ends using bearings, and the two connecting plates 8 are respectively arranged in the mixing chambers of the two water-fertilizer mixers 1.

[0029] For the mixing assembly, the return spring 10 and the telescopic rod assembly 9 can be used alone or in combination. Since both the return spring 10 and the telescopic rod assembly 9 can axially extend / retract, their ends are respectively mounted on the connecting plate 8 and the drive seat 12. Thus, when the intermediate piston 7 reciprocates axially along the mixing chamber of the water-fertilizer mixer 1, the extension and retraction of the telescopic rod assembly 9 / return spring 10 can achieve uniform mixing in the mixing chamber. The number of telescopic rod assemblies 9 / return springs 10 is not limited; in practical applications, an appropriate number of mixing assemblies can be selected for installation.

[0030] Example 3 is a further improvement on Example 2. To further disclose how the reset spring 10 and the telescopic rod assembly 9 are combined and used, in conjunction with... Figures 2-5 It can be seen that the telescopic rod assembly 9 consists of a traction telescopic rod 901 and a support telescopic rod 902, and a central adjustment plate 11 is fixedly installed on the outer side of the telescopic rod assembly 9. Figure 2As shown, the traction telescopic rod 901 is positioned between the intermediate adjusting plate 11 and the connecting plate 8, with one end of the traction telescopic rod 901 fixedly mounted on the connecting plate 8; the support telescopic rod 902 is positioned between the intermediate adjusting plate 11 and the drive seat 12, with one end of the support telescopic rod 902 fixedly mounted on the end of the drive seat 12. The two ends of the reset spring 10 are respectively fixed to the ends of the intermediate adjusting plate 11 and the drive seat 12, and the reset spring 10 is sleeved on the outer side of the support telescopic rod 902. Under normal conditions, the intermediate piston 7 is located in the middle of the water-fertilizer mixer 1, the reset spring 10 is in a freely extended state, and the traction telescopic rod 901 is in a minimum compressed state, i.e. Figure 2 The state is shown. It should be noted that the traction telescopic rod 901 has an extension limit; its maximum extended length is as shown... Figure 6 As shown, when the middle piston 7 moves to the right and contacts the right-side positioning detection component 15, the left-side traction telescopic rod 901 extends to its maximum length; the same applies to the right-side traction telescopic rod 901 extending to its maximum length.

[0031] Moreover, from Figure 2 and Figure 5 It can be seen that a rectangular filter trough 120 is provided on the side of the drive seat 12, and the cross-sectional shape of the rectangular filter trough 120 is "eight" shaped. The opening is largest at the part facing the mixing chamber of the water-fertilizer mixer 1. The rectangular filter trough 120 is used to connect the water inlet pipe 4 / mixing water drain pipe 5 with the mixing chamber of the water-fertilizer mixer 1. When water is sent into the mixing chamber of the water-fertilizer mixer 1 through the water inlet pipe 4, the input water medium undergoes filtration and other processes, making it relatively pure. When the water and fertilizer raw materials are stirred in the mixing chamber of the water-fertilizer mixer 1, in order to avoid the presence of large particles of impurities in the fertilizer raw materials, the opening of the rectangular filter trough 120 is set to be relatively small when the water-fertilizer mixture is discharged. Therefore, the rectangular filter trough 120 can filter the output water-fertilizer liquid, preventing the discharged particles from entering the mixing water drain pipe 5 and clogging the nozzles after being discharged through the irrigation network.

[0032] Therefore, in order to ensure that the rectangular filter tank 120 does not become clogged during the output of the water-fertilizer mixture, combined with Figure 2 , Figure 3 and Figure 5 It can be seen that a pull rod 143 is fixedly installed on one side of the surface of the unblocking seat 14, and the pull rod 143 is inserted into the drive seat 12. A spring is provided between the pull rod 143 and the drive seat 12. Driven by the elastic force of the spring, the unblocking seat 14 always tends to move radially along the drive seat 12 and outwards. Furthermore, a drive rod 142 is fixedly installed on the end of the unblocking seat 14 near the motor 6. Correspondingly, a push plate 13 is fixedly installed on one side of the inner side of the water-fertilizer mixer 1, located on one side of the drive seat 12. Figure 5As can be seen, the inner wall of the push plate 13 is provided with an arc-shaped protrusion. When the drive seat 12 drives the drive rod 142 on the unblocking seat 14 past the arc-shaped protrusion, the arc-shaped protrusion blocks the drive rod 142, causing the unblocking seat 14 to tend to move radially along the drive seat 12 and toward the center of the drive seat 12. In this way, as the drive seat 12 drives the unblocking seat 14 to rotate, the unblocking seat 14 will drive the drive rod 142 to move closer to / away from the arc-shaped protrusion on the push plate 13. Specifically, the unblocking seat that passes the arc-shaped protrusion... 14 will move towards the middle of the drive seat 12 and use the pull rod 143 to compress and store the spring; the unblocking seat 14 away from the arc protrusion is pushed by the spring to move away from the middle of the drive seat 12; the unblocking seat 14 reciprocates in the rectangular filter tank 120 to ensure that the water and fertilizer mixture in the mixing chamber of the water and fertilizer mixer 1 will not be blocked in the rectangular filter tank 120 when it is output, and to ensure that the water and fertilizer mixture can be continuously output from the rectangular filter tank 120 to the mixing pipe 5.

[0033] Based on this, a locking rod 141 is fixedly threaded onto one end of the unblocking seat 14 near the mixing chamber of the water-fertilizer mixer 1. Correspondingly, a guide seat 16 is fixedly installed on one end of the intermediate adjusting plate 11 near the drive seat 12, and an annular inclined surface is provided on one side of the guide seat 16. Furthermore, a locking ring groove 110 is provided on the inner side of the intermediate adjusting plate 11. When the intermediate piston 7 moves to the end of the mixing chamber of the water-fertilizer mixer 1, the locking rod 141 will follow the guide of the guide seat 16 and enter the locking ring groove 110. The arc-shaped end of the locking rod 141 abuts against the arc groove of the locking ring groove 110, thereby increasing the disengagement resistance between the locking ring groove 110 and the drive seat 12. The advantage of this design is that, taking the rightward movement of the intermediate piston 7 as an example, ... Figure 6 In the indicated state, the locking rod 141 is inserted into the locking ring groove 110. As the locking ring groove 110 approaches the drive seat 12, the support telescopic rod 902 retracts, compressing and storing the return spring 10. When the water inlet pipe 4 on the right side inputs water into the mixing chamber of the water-fertilizer mixer 1, the left-moving intermediate piston 7 is only moved to the left by the increase in water medium in the right mixing chamber of the water-fertilizer mixer 1. This avoids the problem of the intermediate piston 7 moving too fast to the left due to the elastic force of the return spring 10, causing the left mixing pipe 5 to discharge the water-fertilizer mixture uncontrollably.

[0034] The advantage of this third embodiment is that it not only enables the output filtration of the mixed water-fertilizer solution, but also avoids the problem of excessive dilution of the water-fertilizer concentration caused by excessive water medium filling due to the failure of the seal of the intermediate piston 7 leading to the connection between the left and right mixing chambers of the water-fertilizer mixer 1. The specific working content is as follows: Initially, such as Figure 2 As shown, the middle piston 7 is in the center. Taking the opening of the solenoid valve on the left inlet pipe 4 as an example, that is... Figure 6 As shown, at this point, water medium is fed into the left mixing chamber of the water-fertilizer mixer 1 through the rectangular filter 120 via the left inlet pipe 4. Initially, the feed pipe 3 can be manually opened to minimize air in the left mixing chamber when water medium is fed into it. Afterward, once the left mixing chamber is full of water medium, fertilizer raw materials are fed into the left inner chamber via the feed pipe 3. Subsequently, as the water medium passes through the rectangular filter 120 into the left mixing chamber of the water-fertilizer mixer 1, the pressure of the medium in the left chamber increases, tending to push the intermediate piston 7 to the right. If, at this time, the intermediate piston 7 experiences a prolonged seal leak, and if the leakage exceeds the water inlet volume of the rectangular filter tank 120, the intermediate piston 7, when moving to the right, needs to overcome the elastic resistance of the reset spring 10. Therefore, the water medium in the left mixing chamber of the water-fertilizer mixer 1 will flow directly from the leaking part of the intermediate piston 7 into the right mixing chamber of the water-fertilizer mixer 1. Meanwhile, the intermediate piston 7 remains centered throughout this process. Figure 8 The state shown.

[0035] Similarly, if there is no leakage on the outer side of the intermediate piston 7 or the leakage is relatively small (within the range of water-fertilizer concentration adjustment), the water medium pressure in the left mixing chamber of the water-fertilizer mixer 1 will increase, causing the intermediate piston 7 to move to the right. The rightward movement of the intermediate piston 7 pulls the left-side traction telescopic rod 901 to extend. The intermediate piston 7, through the right-side traction telescopic rod 901, pushes the intermediate adjusting plate 11 to the right, and the intermediate adjusting plate 11 compresses the reset spring 10 and the support telescopic rod 902, causing them to contract. During this process, when the left-side motor 6 drives the drive seat 12 to rotate, the drive seat 12 drives the reset spring 10, the support telescopic rod 902, and the traction telescopic rod 901 to rotate, thus agitating the water and fertilizer in the left mixing chamber of the water-fertilizer mixer 1.

[0036] As the intermediate piston 7 moves to the right, the locking rod 141 first contacts the inclined surface of the guide seat 16 and is guided by the inclined surface, causing the locking rod 141 to move the unblocking seat 14 closer to the center of the drive seat 12. This causes the pull rod 143 to compress the spring, and the drive rod 142 also moves closer to the center of the drive seat 12. After the intermediate piston 7 moves to the set position, it triggers the right-side positioning detection component 15. At the same time, the locking rod 141 finally inserts into the locking ring groove 110, increasing the resistance of the locking ring groove 110 to the left. Furthermore, when the drive seat 12 rotates the unblocking seat 14, the drive rod 142 does not contact the arc-shaped protrusion on the push plate 13.

[0037] The positioning detection component 15 on the right sends a signal to the control system, causing the solenoid valve on the right inlet pipe 4 to open and the solenoid valve on the left inlet pipe 4 to close. The solenoid valve on the right mixing drain pipe 5 closes and the solenoid valve on the left mixing drain pipe 5 opens. Then, as the water medium is input into the right mixing chamber of the water-fertilizer mixer 1 through the right rectangular filter tank 120, the middle piston 7 is pushed to the left. During this leftward movement, the traction telescopic rod 901 extends, while the locking ring groove 110 remains on the right side, restricted by the locking rod 141. The leftward movement of the middle piston 7 causes the water-fertilizer mixture on the left side of the mixing chamber of the water-fertilizer mixer 1 to be output to the irrigation network through the rectangular filter tank 120 and the mixing drain pipe 5. Simultaneously, the motor 6 on the left continuously drives the drive seat 12 to rotate, both to agitate the left mixing chamber and to prevent clogging of the rectangular filter tank 120 after the drive seat 12 drives the left drive rod 142 past the left push plate 13.

[0038] When the intermediate piston 7 moves to the middle, as the traction telescopic rod 901 is pulled to its longest limit, and the water medium in the right chamber of the water-fertilizer mixer 1 increases again, the intermediate piston 7 will force the intermediate adjusting plate 11 to move to the left through the extended traction telescopic rod 901. Once the leftward movement of the intermediate adjusting plate 11 exceeds the resistance of the locking rod 141, the locking ring groove 110 and the locking rod 141 will eventually disengage. Then, as the medium in the right mixing chamber of the water-fertilizer mixer 1 increases, it will push the intermediate piston 7 to move to the left.

[0039] When the middle piston 7 moves to the left and reaches the end, it contacts the left-side positioning detection component 15. Then, according to the above, the middle piston 7 moves to the right again, and so on, to achieve continuous output and preparation of the water-fertilizer mixture.

[0040] Example 4 is a supplement to Example 3, combined with Figure 2 and Figure 3 It can be seen that an alarm detection component 201 is fixedly installed on the middle of the outer side of the water-fertilizer mixer 1. The alarm detection component 201 is a delayed start switch. During normal operation, if the middle piston 7 is in the middle position for a long time, the alarm detection component 201 will cause the alarm light 2 to emit a constantly lit alarm after the delay timer stops, thereby warning that the operating equipment has malfunctioned.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic water and fertilizer integrated machine for agricultural irrigation, characterized in that, include: The water-fertilizer mixer (1) uses the middle piston (7) of the set to divide its interior into left and right mixing chambers; and the water-fertilizer mixer (1) is symmetrically fixed with water inlet pipe (4) / mixing water drain pipe (5) at both ends, and electromagnetic on / off valves are provided between the water inlet pipe (4) / mixing water drain pipe (5) and the water-fertilizer mixer (1); The feed pipe (3) is symmetrically arranged on the top of the outside of the water-fertilizer mixer (1), and a one-way flow valve is provided between the feed pipe (3) and the water-fertilizer mixer (1); The motor (6) is symmetrically arranged at both ends of the water-fertilizer mixer (1), and the output shaft of the motor (6) is equipped with a stirring mechanism; The positioning detection component (15) is symmetrically set at the bottom outside of the water-fertilizer mixer (1). When the middle piston (7) moves to the positioning detection component (15), it will cause the corresponding water inlet pipe (4) / mixing water outlet pipe (5) to be switched on and off, so that the left and right mixing chambers in the water-fertilizer mixer (1) can alternately discharge and prepare water-fertilizer solution.

2. The automatic water and fertilizer integrated machine for agricultural irrigation according to claim 1, characterized in that, The mixing mechanism consists of a drive seat (12), a connecting plate (8), and a mixing component assembly. The drive seat (12) is movably installed on the inner end of the water-fertilizer mixer (1), and the drive seat (12) is coaxially and tightly installed with the output shaft of the motor (6). The connecting plate (8) is movably installed on both ends of the intermediate piston (7). The two ends of the mixing component assembly are respectively installed on the connecting plate (8) and the drive seat (12).

3. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 2, characterized in that, The first type of stirring assembly is a telescopic rod assembly (9).

4. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 2 or 3, characterized in that, The second type of stirring component is a reset push spring (10).

5. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 4, characterized in that, The telescopic pole assembly (9) consists of a traction telescopic pole (901) and a support telescopic pole (902), and an intermediate adjustment plate (11) is fixedly installed on the outer side of the telescopic pole assembly (9). The traction telescopic rod (901) is set between the intermediate adjustment plate (11) and the connecting plate (8); the support telescopic rod (902) is set between the intermediate adjustment plate (11) and the drive seat (12); the two ends of the reset push spring (10) are fixed to the ends of the intermediate adjustment plate (11) and the drive seat (12) respectively.

6. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 5, characterized in that, A rectangular filter groove (120) is provided on the side of the drive seat (12), and the cross-sectional shape of the middle section of the rectangular filter groove (120) is "eight".

7. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 6, characterized in that, A pull rod (143) is fixedly installed on one side of the surface of the unblocking seat (14), and the pull rod (143) is inserted into the drive seat (12). A spring is provided between the pull rod (143) and the drive seat (12). A drive rod (142) is fixedly installed at one end of the unblocking seat (14), and a push plate (13) is fixedly installed on one side of the inner side of the water-fertilizer mixer (1) and on one side of the drive seat (12). An arc-shaped protrusion is provided on the inner wall of the push plate (13).

8. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 7, characterized in that, A locking rod (141) is threaded onto one end of the blockage clearing seat (14), and a guide seat (16) is fixedly installed on one end of the intermediate adjustment plate (11). An annular inclined surface is provided on one side of the guide seat (16), and a locking ring groove (110) is provided on the inner side of the intermediate adjustment plate (11).

9. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 8, characterized in that, An alarm detection component (201) is fixedly installed on the middle of the outer side of the water-fertilizer mixer (1). When the middle piston (7) is in the middle position for a long time, the alarm detection component (201) will cause the alarm light (2) to emit a constantly lit alarm after the delay timer stops.

10. The automated water and fertilizer integrated machine for agricultural irrigation according to claim 9, characterized in that, A concentration detector is installed at the output end of the mixing pipe (5). When the concentration of the fertilizer solution flowing through it deviates from the set concentration, the alarm light (2) will flash.

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