Nitrogen fertilizer preparation reaction mechanism for plant nitrogen supply regulation, production and development

Abstract

The invention relates to a nitrogen fertilizer preparation reaction mechanism for plant nitrogen supply regulation, production and development, which comprises a bottom plate, a preparation tank is fixed on the top surface of the bottom plate through a bracket, the bottom surface of the preparation tank is fixedly communicated with a discharge pipe, a stirring assembly is arranged in the preparation tank, a feeding assembly is arranged in the preparation tank, and the stirring assembly is connected with the discharge pipe. And a discharging assembly is arranged in the preparation tank. When the nitrogen fertilizer preparation reaction mechanism for plant nitrogen supply regulation, production and development is used, nitrogen fertilizer is prepared through the preparation tank and used for plant growth and development so as to regulate nitrogen fertilizer acquisition of plants, and when the nitrogen fertilizer is prepared, urea powder, a urea ammonium nitrate solution and other nitrogen fertilizer raw materials can be effectively and fully mixed and stirred through the arranged stirring assembly, so that the nitrogen fertilizer preparation reaction mechanism is convenient to use. After the prepared nitrogen fertilizer is discharged out of the preparation tank, the stirring assembly is started to scrape off residual materials adhered to the inner wall of the preparation tank, waste caused by nitrogen fertilizer residues is reduced, and the practicability is better.

Description

Technical Field

[0001] This invention relates to the field of nitrogen fertilizer preparation technology, specifically to a nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and development. Background Technology

[0002] Nitrogen fertilizer refers to a single-component fertilizer that provides nitrogen nutrition to plants when applied to the soil, with nitrogen as its main component. Nitrogen fertilizer is the fertilizer with the largest production and usage volume in the world. Appropriate nitrogen fertilizer application plays an important role in increasing crop yield and improving the quality of agricultural products. Nitrogen fertilizer is usually prepared by mixing a variety of raw materials using a preparation reaction mechanism.

[0003] For example, Chinese Patent (Announcement No.: CN 207330784 U) discloses a four-nitrogen-in-one nitrogen fertilizer preparation system. The four-nitrogen-in-one nitrogen fertilizer preparation system includes a powder-liquid mixer, a homogenizing tank, and a homogenizer installed on the homogenizing tank and capable of stirring the liquid in the homogenizing tank. The powder-liquid mixer has a powder inlet, a first liquid inlet, and a first liquid outlet. The homogenizing tank has a second liquid inlet and a second liquid outlet. The second liquid inlet and the second liquid outlet are both connected to the inner cavity of the homogenizing tank. The first liquid inlet is connected to the second liquid outlet through a first pipeline, and the first liquid outlet is connected to the second liquid inlet through a second pipeline. The four-nitrogen-in-one nitrogen fertilizer preparation system provided by this patent can prepare four-nitrogen-in-one nitrogen fertilizer simply and conveniently.

[0004] However, the aforementioned patent has some shortcomings. After the prepared nitrogen fertilizer is discharged from the tank, it is not convenient to clean the fertilizer adhering to the inner wall of the tank, which can easily lead to fertilizer waste. At the same time, the residual fertilizer can also affect the subsequent production of nitrogen fertilizer, making it inconvenient to use. Therefore, a nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and development is proposed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and development, which has advantages such as facilitating the cleaning of residual fertilizer on the inner wall of the tank, thus solving the problem of the aforementioned patents not being able to easily clean residual fertilizer from the inner wall of the tank.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and production, comprising a base plate, a preparation tank fixed to the top surface of the base plate by a bracket, a discharge pipe fixedly connected to the bottom surface of the preparation tank, a stirring assembly inside the preparation tank, a feeding assembly inside the preparation tank, and a discharge assembly inside the preparation tank;

[0007] The stirring assembly includes a motor fixed to the top surface of the preparation tank. A rotating rod is fixed to the bottom end of the motor output shaft, extending into the preparation tank and rotatably connected to it. Four connecting rods are fixed to the outer peripheral wall of the rotating rod near its bottom end. Two stirring rods are fixed to the top surface of the connecting rods. A spiral blade is fixed to the outer peripheral wall of the rotating rod. A cylindrical cylinder is fixed to the inner top wall of the preparation tank. Multiple connecting holes are opened on the outer peripheral wall of the cylindrical cylinder near its top end. A scraper is fixed to the end of the connecting rod away from the rotating rod. A connecting rib with one end fixed to the stirring rod is fixed to the side of the scraper facing the rotating rod.

[0008] Furthermore, the feeding assembly includes an annular chamber fixed to the top wall of the preparation tank. The annular chamber has multiple liquid outlet holes on its outer peripheral wall. The top surface of the preparation tank is fixed with a liquid inlet pipe whose bottom end communicates with the annular chamber. The top surface of the preparation tank is fixed with a feeding pipe whose bottom end extends into the preparation tank. The top end of the feeding pipe is fixedly connected to a feeding hopper. A circular plate is rotatably connected to the outer peripheral wall of the cylindrical tube near the top end. The top end of the stirring rod is fixed to the bottom surface of the circular plate. The top surface of the circular plate has a material passage hole.

[0009] Furthermore, the discharge assembly includes two support plates fixed to the right side of the discharge pipe, a control plate rotatably connected between the two support plates, a square rod fixed to the right side of the control plate, a screw rotatably connected to the top surface of the base plate, a threaded ring threadedly connected to the outer peripheral wall of the screw, a movable hole for the threaded ring to move inside the top surface of the square rod near the right end, and elongated holes communicating with the movable holes on both the front and back sides of the square rod, with a T-shaped rod slidably connected inside the elongated hole, one end of which is fixed to the outer peripheral wall of the threaded ring.

[0010] Furthermore, the preparation tank is a hollow cylindrical tank with a conical outer wall near the bottom, and the discharge pipe is a circular pipe located at the center of the bottom surface of the preparation tank.

[0011] Furthermore, the bottom surface of the cylindrical tube is missing, and the cylindrical tube, the rotating rod, and the preparation tank are all located on the same central axis. The four connecting rods are equidistantly distributed along the circumference of the rotating rod.

[0012] Furthermore, the two stirring rods on the same connecting rod are distributed along the axial direction of the connecting rod, the side of the scraper away from the connecting rod abuts against the inner wall of the preparation tank, and the connecting rib is close to the top of the scraper.

[0013] Furthermore, the annular chamber, the circular plate, and the preparation tank are all located on the same central axis, and the multiple liquid outlet holes are equidistantly distributed along the circumference of the annular chamber.

[0014] Furthermore, the bottom end of the feed pipe abuts against the top surface of the circular plate, the feed hole is vertically opposite to the feed pipe, and valves are fixed on the outer peripheral walls of both the feed pipe and the liquid inlet pipe.

[0015] Furthermore, when the control plate is in a horizontal state, its top surface abuts against the bottom surface of the discharge pipe, and a sealing gasket is fixed on the top surface of the control plate.

[0016] Furthermore, a rotating wheel is fixed to the top of the screw, the elongated hole is used for the T-shaped rod to slide left and right and rotate inside it, and the movable hole is used for the threaded ring to slide left and right and rotate inside it.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. This nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and growth is used to prepare nitrogen fertilizer in a preparation tank to regulate plant nitrogen acquisition. During the preparation of nitrogen fertilizer, the set stirring component can effectively mix and stir the nitrogen fertilizer raw materials such as urea powder and urea ammonium nitrate solution, improving the nitrogen fertilizer preparation efficiency. After the prepared nitrogen fertilizer is discharged from the preparation tank, activating the stirring component can also scrape off the residue adhering to the inner wall of the preparation tank, reducing waste caused by nitrogen fertilizer residue, and improving practicality.

[0019] 2. This nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and development controls the feeding of urea powder through a feeding component during nitrogen fertilizer preparation. This feeding component can intermittently add urea powder, avoiding excessive powder addition at one time which would affect the stirring effect. In addition, after preparation is completed, injecting an aqueous solution into the feeding component can also clean the inner wall of the preparation tank, making the cleaning of the preparation tank more convenient and practical.

[0020] 3. This nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and growth involves preparing nitrogen fertilizer in the preparation tank, and then discharging the prepared nitrogen fertilizer from the discharge pipe through the discharge component. The discharge component is simple to operate and convenient to use, and it will not cause blockage of the discharge pipe, thus making it more practical. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a front view schematic diagram of the internal structure of the can used in the present invention;

[0023] Figure 3 This is a top view of the circular plate of the present invention;

[0024] Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle;

[0025] Figure 5 This is a top view of the threaded ring of the present invention.

[0026] In the diagram: 1. Base plate, 2. Preparation tank, 3. Discharge pipe, 4. Stirring assembly, 401. Motor, 402. Rotating rod, 403. Connecting rod, 404. Stirring rod, 405. Spiral blade, 406. Circular cylinder, 407. Connecting hole, 408. Scraper, 409. Connecting rib, 5. Feeding assembly, 501. Circular hopper, 502. Liquid outlet, 503. Liquid inlet pipe, 504. Feeding pipe, 505. Feed hopper, 506. Circular plate, 507. Material passage hole, 6. Discharge assembly, 601. Support plate, 602. Material control plate, 603. Square rod, 604. Screw, 605. Threaded ring, 606. Movable hole, 607. Long strip hole, 608. T-shaped rod. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-3 This embodiment describes a nitrogen fertilizer preparation reaction mechanism for regulating plant nitrogen supply and growth. It includes a base plate 1, with a preparation tank 2 fixed to the top surface of the base plate 1 via a support. A discharge pipe 3 is fixedly connected to the bottom surface of the preparation tank 2. A stirring assembly 4 is installed inside the preparation tank 2. In use, nitrogen fertilizer is prepared in the preparation tank 2 to regulate plant nitrogen supply and growth. During preparation, the stirring assembly 4 effectively mixes and stirs urea powder and urea ammonium nitrate solution, improving the efficiency of nitrogen fertilizer preparation. After the prepared nitrogen fertilizer is discharged from the preparation tank 2, activating the stirring assembly 4 can scrape off any residue adhering to the inner wall of the preparation tank 2, reducing nitrogen fertilizer residue. The preparation tank 2 is more practical and less wasteful. It is equipped with a feeding component 5. When preparing nitrogen fertilizer, the feeding is controlled by the feeding component 5. The feeding component 5 can add urea powder intermittently, avoiding the effect of adding too much powder at once and affecting the stirring effect. In addition, after the preparation is completed, the water solution is injected into the feeding component 5, which can also achieve the effect of cleaning the inner wall of the preparation tank 2, making the preparation tank 2 easier to clean. The preparation tank 2 is also equipped with a discharge component 6. After the nitrogen fertilizer is prepared in the preparation tank 2, the prepared nitrogen fertilizer is discharged from the discharge pipe 3 through the discharge component 6. The discharge component 6 is simple to operate and convenient to use. At the same time, it will not cause blockage of the discharge pipe 3, which will affect the discharge, making it more practical.

[0029] The stirring assembly 4 includes a motor 401 fixed to the top surface of the preparation tank 2. A rotating rod 402, extending into the preparation tank 2 and rotatably connected to it, is fixed to the bottom end of the motor 401's output shaft. Four connecting rods 403 are fixed to the outer peripheral wall of the rotating rod 402 near its bottom end. Two stirring rods 404 are fixed to the top surface of the connecting rods 403. In use, the motor 401 is started, causing the rotating rod 402 to rotate. The rotating rod 402 then drives the four connecting rods 403 to revolve around the rotating rod 402. Furthermore, the connecting rods 403 drive the multiple stirring rods 404 to revolve around the rotating rod 402 to stir the nitrogen fertilizer raw materials. A spiral blade 405 is fixed to the outer peripheral wall of the rotating rod 402. A cylindrical cylinder 406 is fixed to the inner top wall of the preparation tank 2. Multiple stirring rods 404 are formed on the outer peripheral wall of the cylindrical cylinder 406 near its top end. A connecting hole 407, when the rotating rod 402 rotates, also drives the spiral blade 405 to rotate. The spiral blade 405, together with the cylindrical cylinder 406, plays a lifting role in the nitrogen fertilizer raw materials inside the preparation tank 2, increasing the stirring effect of the nitrogen fertilizer raw materials. A scraper 408 is fixed to the end of the connecting rod 403 away from the rotating rod 402. A connecting rib 409, which is fixed to the stirring rod 404, is fixed to the side of the scraper 408 facing the rotating rod 402. The side of the scraper 408 away from the connecting rod 403 abuts against the inner wall of the preparation tank 2. The connecting rib 409 is close to the top of the scraper 408. When the connecting rod 403 revolves, it also drives the scraper 408 to revolve around the rotating rod 402, so that after the nitrogen fertilizer is prepared and discharged, the scraper 408 can scrape off the residual material adhering to the inner wall of the preparation tank 2, reducing the waste caused by residual fertilizer.

[0030] It should be noted that the motor 401 mentioned in the article is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0031] In this embodiment, the preparation tank 2 is a hollow cylindrical tank with a tapered outer wall near the bottom. The discharge pipe 3 is a circular pipe located in the center of the bottom of the preparation tank 2. This structure facilitates the accumulation of nitrogen fertilizer from the internal support plates of the preparation tank 2 towards the discharge pipe 3, making it easier to discharge the fertilizer.

[0032] The bottom surface of the cylindrical cylinder 406 is missing. The cylindrical cylinder 406, the rotating rod 402, and the preparation tank 2 are all located on the same central axis. The four connecting rods 403 are equidistantly distributed along the circumference of the rotating rod 402. The two stirring rods 404 on the same connecting rod 403 are distributed along the axial direction of the connecting rod 403.

[0033] Please see Figure 1-3In this embodiment, the feeding assembly 5 includes an annular chamber 501 fixed to the top wall of the preparation tank 2. Multiple outlet holes 502 are provided on the outer peripheral wall of the annular chamber 501. An inlet pipe 503, with its bottom end connected to the annular chamber 501, is fixed to the top surface of the preparation tank 2. When controlling the feeding of nitrogen fertilizer raw materials, a urea ammonium nitrate solution is introduced through the inlet pipe 503 via an external pump, further entering the annular chamber 501 through the inlet pipe 503, and then passing through the outer peripheral wall of the annular chamber 501. The liquid outlet 502 sprays onto the inner circumferential wall of the preparation tank 2, completing the feeding of the urea ammonium nitrate solution. A feed pipe 504 extending into the interior of the preparation tank 2 is fixed to the top surface of the tank. A feed hopper 505 is fixedly connected to the top of the feed pipe 504. Urea powder is poured into the feed hopper 505, allowing it to enter the feed pipe 504. The bottom end of the feed pipe 504 abuts against the top surface of the circular plate 506, allowing the urea powder to be temporarily stored inside the feed pipe 504. A circular plate 506 is rotatably connected to the outer peripheral wall of cylinder 406 near the top. The top of stirring rod 404 is fixed to the bottom surface of circular plate 506. A material passage hole 507 is opened on the top surface of circular plate 506. The bottom end of feed pipe 504 abuts against the top surface of circular plate 506. The material passage hole 507 and feed pipe 504 are vertically opposite each other. When motor 401 starts and drives stirring rod 404 to stir, stirring rod 404 will also drive the top circular plate 506 to rotate. When the material passage hole 507 on circular plate 506 rotates to the bottom of feed pipe 504, urea powder inside feed pipe 504 falls into preparation tank 2 through material passage hole 507. When circular plate 506 continues to rotate and blocks feed pipe 504, feed pipe 504 will no longer add urea powder into preparation tank 2. In this way, urea powder can be added intermittently, avoiding the inability to quickly disperse urea powder due to adding too much at once, which affects stirring efficiency.

[0034] It should be noted that when cleaning the preparation tank 2, cleaning water can be introduced into the liquid inlet pipe 503, which, together with the scraper 408, can effectively clean the inner wall of the preparation tank 2.

[0035] In this embodiment, the annular chamber 501, the circular plate 506, and the preparation tank 2 are all located on the same central axis. Multiple liquid outlet holes 502 are equidistantly distributed along the circumference of the annular chamber 501. Valves are fixed on the outer peripheral walls of the feed pipe 504 and the liquid inlet pipe 503. The valves facilitate better control of the feed.

[0036] Please see Figure 1 , Figure 4 and Figure 5In this embodiment, the discharge assembly 6 includes two support plates 601 fixed to the right side of the discharge pipe 3. A control plate 602 is rotatably connected between the two support plates 601. A square rod 603 is fixed to the right side of the control plate 602. A screw 604 is rotatably connected to the top surface of the base plate 1. A threaded ring 605 is threaded onto the outer peripheral wall of the screw 604. After the nitrogen fertilizer is prepared by mixing, the screw 604 is rotated, and the screw 604 drives the threaded ring 605 to move upward. The threaded ring 605 drives the square rod 603 to flip upward near its right end, causing its left end to drive the left side of the control plate 602 to flip downward, thereby allowing the mixed nitrogen fertilizer to be discharged through the discharge pipe 3. After the nitrogen fertilizer is discharged, the screw 604 is rotated in the opposite direction to cause the control plate 602 to flip in the opposite direction and block the discharge. The square rod 603 has a movable hole 606 on its top surface near the right end, allowing the threaded ring 605 to move inside. Both the front and back of the square rod 603 have elongated holes 607 communicating with the movable hole 606. A T-shaped rod 608, one end of which is fixed to the outer peripheral wall of the threaded ring 605, is slidably connected within the elongated hole 607. The elongated hole 607 allows the T-shaped rod 608 to slide left and right and rotate within it, while the movable hole 606 allows the threaded ring 605 to slide left and right and rotate within it. When the square rod 603 is flipped, the threaded ring 605 will cause the T-shaped rod 608 to slide left and right and rotate within the elongated hole 607 and the movable hole 606, thus preventing movement obstruction between the square rod 603 and the threaded ring 605 during flipping.

[0037] In this embodiment, when the control plate 602 is in a horizontal state, its top surface abuts against the bottom surface of the discharge pipe 3. A sealing gasket is fixed on the top surface of the control plate 602, and a rotating wheel is fixed on the top end of the screw 604.

[0038] The working principle of the above embodiments is as follows:

[0039] 1. During use, start the motor 401. The motor 401 drives the rotating rod 402 to rotate. The rotating rod 402 drives the four connecting rods 403 to revolve around the rotating rod 402. Furthermore, the connecting rods 403 drive multiple stirring rods 404 to revolve around the rotating rod 402 to stir the nitrogen fertilizer raw materials. When the rotating rod 402 rotates, it also drives the spiral blade 405 to rotate. The spiral blade 405, together with the cylindrical cylinder 406, plays a lifting role for the nitrogen fertilizer raw materials inside the preparation tank 2, increasing the stirring effect of the nitrogen fertilizer raw materials. When the connecting rod 403 revolves, it also drives the scraper 408 to revolve around the rotating rod 402. After the nitrogen fertilizer is prepared and discharged, the scraper 408 scrapes off the residue adhering to the inner wall of the preparation tank 2, reducing waste caused by residual fertilizer.

[0040] 2. When controlling the feeding of nitrogen fertilizer raw materials, urea ammonium nitrate solution is introduced through the inlet pipe 503 via an external pump. It then enters the annular chamber 501 through the inlet pipe 503 and is sprayed onto the inner wall of the preparation tank 2 through the outlet holes 502 on the outer periphery of the annular chamber 501, completing the feeding of the urea ammonium nitrate solution. Then, urea powder is poured into the feed hopper 505, allowing it to enter the feed pipe 504. The bottom end of the feed pipe 504 abuts against the top surface of the circular plate 506, allowing the urea powder to be temporarily stored inside the feed pipe 504. The motor 401 is started to drive the agitator... When the stirring rod 404 is stirring, it will also drive the top circular plate 506 to rotate. When the material passage hole 507 on the circular plate 506 rotates to the bottom of the feed pipe 504, the urea powder inside the feed pipe 504 falls into the preparation tank 2 through the material passage hole 507. When the circular plate 506 continues to rotate and blocks the feed pipe 504, the feed pipe 504 will no longer add urea powder into the preparation tank 2. In this way, urea powder can be added intermittently, avoiding the inability to quickly disperse the urea powder due to adding too much at once, which would affect the stirring efficiency.

[0041] 3. After the nitrogen fertilizer is prepared by mixing, rotate the screw 604. The screw 604 drives the threaded ring 605 to move upward. The threaded ring 605 drives the square rod 603 to flip upward near the right end, so that its left end drives the left side of the control plate 602 to flip downward, so that the mixed nitrogen fertilizer can be discharged through the discharge pipe 3. After the nitrogen fertilizer is discharged, rotate the screw 604 in the opposite direction to make the control plate 602 flip in the opposite direction to block the discharge pipe 3.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction mechanism for regulating nitrogen supply in plants to produce nitrogen fertilizer, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is fixed with a preparation tank (2) by a bracket. The bottom surface of the preparation tank (2) is fixedly connected with a discharge pipe (3). The preparation tank (2) is equipped with a stirring assembly (4), a feeding assembly (5), and a discharge assembly (6). The stirring assembly (4) includes a motor (401) fixed to the top surface of the preparation tank (2). A rotating rod (402) extending into the preparation tank (2) and rotatably connected to the output shaft of the motor (401) is fixed to the bottom end of the rotating rod (401). Four connecting rods (403) are fixed to the outer peripheral wall of the rotating rod (402) near its bottom end. Two stirring rods (404) are fixed to the top surface of the connecting rods (403). A spiral blade (405) is fixed on the peripheral wall. A cylindrical cylinder (406) is fixed on the inner top wall of the preparation tank (2). Multiple connecting holes (407) are opened on the outer peripheral wall of the cylindrical cylinder (406) near the top. A scraper (408) is fixed on the end of the connecting rod (403) away from the rotating rod (402). A connecting rib (409) with one end fixed to the stirring rod (404) is fixed on the side of the scraper (408) facing the rotating rod (402).

2. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 1, characterized in that: The feeding assembly (5) includes an annular chamber (501) fixed on the inner top wall of the preparation tank (2). The outer peripheral wall of the annular chamber (501) is provided with a plurality of liquid outlet holes (502). The top surface of the preparation tank (2) is fixed with a liquid inlet pipe (503) whose bottom end communicates with the annular chamber (501). The top surface of the preparation tank (2) is fixed with a feeding pipe (504) whose bottom end extends into the preparation tank (2). The top end of the feeding pipe (504) is fixedly connected to a feeding hopper (505). A circular plate (506) is rotatably connected to the outer peripheral wall of the circular cylinder (406) near the top end. The top end of the stirring rod (404) is fixed to the bottom surface of the circular plate (506). The top surface of the circular plate (506) is provided with a material passage hole (507).

3. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 1, characterized in that: The discharge assembly (6) includes two support plates (601) fixed to the right side of the discharge pipe (3). A control plate (602) is rotatably connected between the two support plates (601). A square rod (603) is fixed to the right side of the control plate (602). A screw (604) is rotatably connected to the top surface of the base plate (1). A threaded ring (605) is threaded onto the outer peripheral wall of the screw (604). An movable hole (606) for the threaded ring (605) to move inside is opened on the top surface of the square rod (603) near the right end. An elongated hole (607) communicating with the movable hole (606) is opened on both the front and back sides of the square rod (603). A T-shaped rod (608) with one end fixed to the outer peripheral wall of the threaded ring (605) is slidably connected inside the elongated hole (607).

4. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 1, characterized in that: The preparation tank (2) is a hollow cylindrical tank with a conical outer wall near the bottom. The discharge pipe (3) is a circular pipe located at the center of the bottom surface of the preparation tank (2).

5. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 1, characterized in that: The bottom surface of the cylindrical tube (406) is missing. The cylindrical tube (406), the rotating rod (402) and the preparation tank (2) are all located on the same central axis. The four connecting rods (403) are equidistantly distributed along the circumference of the rotating rod (402).

6. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 1, characterized in that: Two stirring rods (404) on the same connecting rod (403) are distributed along the axial direction of the connecting rod (403). The scraper (408) on the side away from the connecting rod (403) abuts against the inner wall of the preparation tank (2). The connecting rib (409) is close to the top of the scraper (408).

7. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 2, characterized in that: The annular chamber (501), the circular plate (506), and the preparation tank (2) are all located on the same central axis, and the multiple liquid outlet holes (502) are equidistantly distributed along the circumference of the annular chamber (501).

8. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 2, characterized in that: The bottom end of the feed pipe (504) abuts against the top surface of the circular plate (506), the feed hole (507) is vertically opposite to the feed pipe (504), and valves are fixed on the outer peripheral walls of the feed pipe (504) and the liquid inlet pipe (503).

9. The reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 3, characterized in that: When the control plate (602) is in a horizontal state, its top surface abuts against the bottom surface of the discharge pipe (3), and a sealing gasket is fixed on the top surface of the control plate (602).

10. A reaction mechanism for preparing nitrogen fertilizer for regulating plant nitrogen supply and development according to claim 3, characterized in that: The top end of the screw (604) is fixed with a rotating wheel, the elongated hole (607) is used for the T-shaped rod (608) to slide left and right and rotate inside it, and the movable hole (606) is used for the threaded ring (605) to slide left and right and rotate inside it.

Images