A smart water and fertilizer mixing tank

Abstract

This utility model discloses an intelligent water and fertilizer mixing tank, relating to the field of fertilizer production technology. The mixing tank includes a collection tank with a valve fixedly connected to its bottom outer wall and a stirring mechanism installed on its inner wall. This utility model utilizes a stirring blade and a turbine stirring blade. A rack and pinion drive a gear to rotate, which in turn rotates a connecting rod at the bottom, simultaneously causing the outer stirring blade to stir the liquid. The movement of the connecting rod causes a support ring at the bottom to rotate along the inside of the collection tank. The rotation of the support ring drives a second connecting shaft, which in turn drives the turbine stirring blade to rotate. This achieves the goal of agitating the substances inside the liquid through the stirring of the stirring blade and the turbine stirring blade, preventing fertilizer from accumulating inside the tank and causing sedimentation after prolonged storage, which could lead to inconsistent fertilizer concentrations and affect the effectiveness of the fertilizer after use.

Description

Technical Field

[0001] This utility model belongs to the field of fertilizer production technology, and in particular relates to an intelligent water and fertilizer mixing tank. Background Technology

[0002] Integrated water and fertilizer management technology is crucial for increasing grain yield per unit area. The No. 1 Central Document of 2025 proposed to further promote the action plan for increasing the yield per unit area of ​​grain and oil crops on a large scale. It called for further expanding the scale of grain yield improvement projects, increasing the integration and promotion of high-yield and high-efficiency models, promoting integrated water and fertilizer management, and facilitating large-scale yield increases. It also stressed the need to intensify efforts to implement the new round of grain production capacity improvement target of 100 billion jin (50 million tons).

[0003] When the existing equipment is in use, the fertilizer mixing tank can store fertilizer solution in the water and fertilizer integration system to achieve precise fertilization. Its stirring function ensures that the fertilizer and water are mixed evenly, and it can also flexibly adjust the nutrient ratio to meet the different growth needs of crops. At the same time, it acts as a buffer container to stabilize the pressure and flow of the irrigation system, ensuring that crops continuously and evenly absorb the appropriate concentration of water and fertilizer, improving fertilizer utilization, promoting crop growth, and increasing yield and quality.

[0004] After the above equipment is completed, the fertilizer accumulates inside the tank. After a long period of storage, the substances inside the liquid are prone to precipitation, which leads to inconsistent fertilizer concentrations and affects the effectiveness of the fertilizer after use. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent water and fertilizer mixing tank. Through the stirring mechanism and the support mechanism, it solves the problem that when fertilizer accumulates inside the tank, substances inside the liquid tend to precipitate after long-term storage, resulting in inconsistent fertilizer concentrations and affecting the effectiveness of the fertilizer after use.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is an intelligent water and fertilizer mixing tank, including a collection tank, and a valve is fixedly connected to the bottom outer wall of the collection tank;

[0008] The inner wall of the collection tank is equipped with a stirring mechanism, which includes a sealing cover. The outer wall of the sealing cover is slidably connected to the inner wall of the collection tank. A rubber sealing strip is fixedly connected to the bottom outer wall of the sealing cover. A motor is fixedly connected to the inner wall of the sealing cover. The output end of the motor is fixedly connected to a first connecting shaft via a coupling. A support frame is inserted into the outer wall of the first connecting shaft. The inner wall of the collection tank is rotatably connected to the outer wall of the support frame. A first sliding groove is provided on the inner wall of the support frame. A pressure spring is fixedly connected to the inner wall of the support frame. A locking block is fixedly connected to the outer wall of the end of the pressure spring away from the support frame. The outer wall of the locking block engages with the inner wall of the first connecting shaft. A rack is fixedly connected to the inner wall of the collection tank.

[0009] Furthermore, the outer wall of the rack is meshed with several gears, the bottom outer wall of each gear is fixedly connected to a connecting rod, the outer wall of the connecting rod is fixedly connected to a stirring blade, the outer wall of the connecting rod is rotatably connected to the inner wall of the support frame, the outer wall of the connecting rod away from the gear is rotatably connected to a support ring, the outer wall of the support ring is slidably connected to the inner wall of the collection tank, the top outer wall of the support ring is fixedly connected to a second connecting shaft, the outer wall of the second connecting shaft is fixedly connected to a turbine stirring blade, and the outer wall of the collection tank is provided with a support mechanism.

[0010] Furthermore, the support mechanism includes a support plate, the outer wall of which is fixedly connected to the outer wall of the collection tank, a limit box is slidably connected to the outer wall of the support plate, a plurality of first dampers are fixedly connected to the bottom outer wall of the support plate, a first spring is fixedly connected to the outer wall of the plurality of first dampers, and the outer wall of the first dampers is fixedly connected to the inner wall of the limit box.

[0011] Furthermore, a plurality of positioning blocks are fixedly connected to the bottom outer wall of the support plate, and a first support rod is rotatably connected to the inner wall of the plurality of positioning blocks. A positioning shaft is rotatably connected to the outer wall of the first support rod on the side away from the positioning block, and the outer wall of the positioning shaft is slidably connected to the inner wall of the limiting box.

[0012] Furthermore, a second support rod is rotatably connected to the outer wall of the positioning shaft near the first support rod, the outer wall of the second support rod is rotatably connected to the inner wall of the positioning block, and connecting blocks are rotatably connected to the outer walls of both the first and second support rods.

[0013] Furthermore, the outer wall of the connecting block is slidably connected to the inner wall of the limiting box, and the inner walls of the first support rod and the second support rod are each provided with a plurality of limiting grooves, and the inner walls of the limiting grooves are slidably connected to limiting blocks.

[0014] Furthermore, a third support rod is rotatably connected to the outer wall of the limiting block, a positioning rod is rotatably connected to the outer wall of the third support rod away from the limiting block, a slider is rotatably connected to the other end of the positioning rod, and a plurality of second sliding grooves are provided on the inner wall of the limiting box.

[0015] Furthermore, the inner wall of the second slide groove is slidably connected to the outer wall of the slider, the outer wall of the slider is fixedly connected to a second spring, the outer wall of the second spring is fixedly connected to the inner wall of the limiting box, and the outer wall of the slider is fixedly connected to a second damper.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model incorporates a stirring blade and a turbine stirring blade. A rack and pinion drive a gear to rotate, which in turn rotates the connecting rod at the bottom, causing the outer stirring blade to agitate the liquid. The movement of the connecting rod causes the bottom support ring to rotate along the inside of the collection tank. The rotation of the support ring drives the second connecting shaft to rotate, which in turn drives the turbine stirring blade to rotate. This achieves the goal of agitating the liquid by stirring the stirring blade and the turbine stirring blade, preventing the accumulation of fertilizer inside the tank. Over time, this can lead to sedimentation of the liquid, resulting in inconsistent fertilizer concentration and affecting the effectiveness of the fertilizer after use.

[0018] 2. This utility model incorporates a first spring and a first damper. As the amount of fertilizer inside the collection tank increases, its own weight leads to increased pressure on the bottom, thereby pushing the bottom support plate downwards along the inside of the limiting box and squeezing the first damper at the bottom of the support plate. The characteristics of the first damper itself alleviate the pressure on the support plate. At the same time, the first spring on the outside of the first damper automatically compresses, using the elasticity of the first spring to alleviate the impact force when the support plate moves downwards. This achieves the goal of relieving pressure with the first damper while absorbing the impact force of the support plate with the elasticity of the first spring. It prevents problems such as the significant increase in weight after the tank is filled with fertilizer, which continuously exerts pressure on the bottom support structure, causing the support part to bend and deform, and thus failing to provide support.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the stirring structure of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a cross-sectional view of the support structure of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged view of section B in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Collection tank; 101. Valve; 2. Stirring mechanism; 201. Sealing cover; 202. Rubber sealing strip; 203. Motor; 204. First connecting shaft; 205. Support frame; 206. First slide groove; 207. Pressure spring; 208. Locking block; 209. Rack; 210. Gear; 211. Connecting rod; 212. Stirring blade; 213. Support ring; 214. Second connecting shaft; 215. Turbine stirring blade; 3. Support Mechanism; 301, support plate; 302, limit box; 303, first damper; 304, first spring; 305, positioning block; 306, first support rod; 307, positioning shaft; 308, second support rod; 309, connecting block; 310, limit groove; 311, limit block; 312, third support rod; 313, positioning rod; 314, slider; 315, second slide groove; 316, second spring; 317, second damper. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 As shown, this utility model is an intelligent water and fertilizer mixing tank, including a collection tank 1. A valve 101 is fixedly connected to the bottom outer wall of the collection tank 1, and the flow of liquid in the tank is controlled by the valve 101.

[0030] A stirring mechanism 2 is provided on the inner wall of the collection tank 1. The stirring mechanism 2 includes a sealing cover 201. The outer wall of the sealing cover 201 is slidably connected to the inner wall of the collection tank 1. A rubber sealing strip 202 is fixedly connected to the bottom outer wall of the sealing cover 201. By providing a ring of rubber sealing strip 202 on the outside of the sealing cover 201, when the sealing cover 201 is sealed to the inlet of the collection tank 1, the rubber sealing strip 202 blocks the gap between the sealing cover 201 and the collection tank 1. A motor 203 is fixedly connected to the inner wall of the sealing cover 201. When the motor 203 is started, the output end of the motor 203 is fixedly connected to a first connecting shaft 204 through a coupling. A support frame 205 is inserted into the outer wall of the first connecting shaft 204. The movement of 201 inserts the first connecting shaft 204 on the outside of the motor 203 into the support frame 205. The inner wall of the collection tank 1 is rotatably connected to the outer wall of the support frame 205. The inner wall of the support frame 205 has a first sliding groove 206. A pressure spring 207 is fixedly connected to the inner wall of the support frame 205. A locking block 208 is fixedly connected to the outer wall of the end of the pressure spring 207 away from the support frame 205. The outer wall of the locking block 208 engages with the inner wall of the first connecting shaft 204. After the first connecting shaft 204 is inserted into the support frame 205, it pushes multiple locking blocks 208 to move while squeezing the pressure spring 207. The elasticity of the pressure spring 207 pushes the locking block 208 to lock the first connecting shaft 204, thereby allowing the first connecting shaft 201 to move. 04. The rotation of the support frame 205 can drive the support frame 205 to rotate. A rack 209 is fixedly connected to the inner wall of the collection tank 1. Several gears 210 are meshed on the outer wall of the rack 209. As the support frame 205 rotates, it drives the multiple gears 210 to move. Because the gears 210 mesh with the rack 209, the rack 209 pushes the gears 210 to rotate. A connecting rod 211 is fixedly connected to the bottom outer wall of the gear 210. A stirring plate 212 is fixedly connected to the outer wall of the connecting rod 211. As the gears 210 rotate, they drive the connecting rod 211 to rotate, which in turn drives the multiple stirring plates 212 to move inside the collection tank 1. The outer wall of the connecting rod 211 is rotatably connected to the inner wall of the support frame 205. The connecting rod 211 is far from the inner wall of the support frame 205. A support ring 213 is rotatably connected to the outer wall of one end of the gear 210. The outer wall of the support ring 213 is slidably connected to the inner wall of the collection tank 1. The movement and rotation of the connecting rod 211 can be stabilized by the support ring 213 sliding along the inside of the collection tank 1. A second connecting shaft 214 is fixedly connected to the top outer wall of the support ring 213. A turbine stirring blade 215 is fixedly connected to the outer wall of the second connecting shaft 214. The rotation of the support ring 213 drives the central second connecting shaft 214 to rotate, and at the same time drives the turbine stirring blade 215 on the outside of the second connecting shaft 214 to rotate, so that the turbine stirring blade 215 rotates in the opposite direction to the stirring blade 212, and agitates the liquid in the collection tank 1. A support mechanism 3 is provided on the outer wall of the collection tank 1.

[0031] The support mechanism 3 includes a support plate 301. The outer wall of the support plate 301 is fixedly connected to the outer wall of the collection tank 1. A limit box 302 is slidably connected to the outer wall of the support plate 301 to limit the position of the support plate 301. Several first dampers 303 are fixedly connected to the bottom outer wall of the support plate 301 to relieve the pressure on the support plate 301. A first spring 304 is fixedly connected to the outer wall of the several first dampers 303. A first spring 304 is provided on the outside of the first damper 303 to relieve the impact force when the support plate 301 moves downward. The outer wall of the first damper 303 is fixedly connected to the inner wall of the limit box 302.

[0032] A plurality of positioning blocks 305 are fixedly connected to the bottom outer wall of the support plate 301. A first support rod 306 is rotatably connected to the inner wall of the positioning blocks 305. A positioning shaft 307 is rotatably connected to the outer wall of the first support rod 306 away from the positioning blocks 305. The movement of the support plate 301 pushes the positioning blocks 305, causing them to move the first support rod 306. Simultaneously, the positioning shaft 307 restricts the direction of movement of the first support rod 306, allowing the first support rod 306 to rotate around the positioning shaft 307. The outer wall of the positioning shaft 307 is slidably connected to the inner wall of the limiting box 302. A second support rod 308 is rotatably connected to the outer wall of the positioning shaft 307 near the first support rod 306. The positioning blocks 305... The movement pushes the second support rod 308 to rotate around the positioning axis 307. The outer wall of the second support rod 308 is rotatably connected to the inner wall of the positioning block 305. The outer walls of the first support rod 306 and the second support rod 308 are rotatably connected to connecting blocks 309. The rotation of the first support rod 306 and the second support rod 308 pushes the bottom connecting block 309 to move along the inside of the limiting box 302. The outer wall of the connecting block 309 is slidably connected to the inner wall of the limiting box 302. The inner walls of the first support rod 306 and the second support rod 308 are each provided with several limiting grooves 310. The inner walls of the limiting grooves 310 are slidably connected to limiting blocks 311. The rotation of the first support rod 306 and the second support rod 308... The limiting block 311 is moved by pushing it. A third support rod 312 is rotatably connected to the outer wall of the limiting block 311. Since the outer sides of the two limiting blocks 311 are connected to the same third support rod 312, and one end of the two third support rods 312 are connected to each other, the third support rod 312 will rotate around the connection point when the limiting block 311 moves, thereby pushing the limiting block 311 to move along the inside of the limiting groove 310. A positioning rod 313 is rotatably connected to the outer wall of the end of the third support rod 312 away from the limiting block 311. A slider 314 is rotatably connected to the outer wall of the other end of the positioning rod 313. The bending of the two third support rods 312 pushes the positioning rod 313 to move, simultaneously causing the slider 314 to move, thus limiting the movement. The inner wall of the box 302 is provided with several second sliding grooves 315. The inner wall of the second sliding groove 315 is slidably connected to the outer wall of the slider 314. The movement range of the slider 314 is limited by the second sliding groove 315. The outer wall of the slider 314 is fixedly connected to a second spring 316. The outer wall of the second spring 316 is fixedly connected to the inner wall of the limiting box 302. The outer wall of the slider 314 is fixedly connected to a second damper 317. By connecting the second spring 316 and the second damper 317 on the outside of the slider 314, it is ensured that when the overall weight of the collection tank 1 increases, the slider 314 will move along the inside of the slider 314 while the second spring 316 and the second damper 317 are pressurized, thereby relieving the pressure generated by the collection tank 1.

[0033] One specific application of this embodiment is:

[0034] When the equipment is needed, the liquid is poured into the collection tank 1 through the opening at the top. Then, the sealing cap 201 is inserted into the opening of the collection tank 1. Because a rubber sealing strip 202 is fixed to the outside of the sealing cap 201, after the sealing cap 201 overlaps with the inside of the collection tank 1, the rubber sealing strip 202 uses its elasticity to seal the gap between the sealing cap 201 and the collection tank 1. Simultaneously, the friction of the rubber sealing strip 202 prevents the sealing cap 201 from accidentally flying out. During the overlap process, the first connecting shaft 204 at the bottom of the sealing cap 201 inserts into the support frame 205, pushing the four locking blocks 208 inside the support frame 205 to move along the inside of the first sliding groove 206. The clamping block 208 presses against the pressure spring 207 inside the first groove 206, thereby using the elasticity of the pressure spring 207 to push the clamping block 208 to move while simultaneously locking the first connecting shaft 204. Then, the motor 203 can be started to rotate the first connecting shaft 204, simultaneously rotating the support frame 205 inside the collection tank 1. The support frame 205 drives multiple gears 210 to rotate inside the collection tank 1, while the gears 210 contact the rack 209, and the rack 209 meshes with the gears 210. Therefore, the rack 209 can push the gears 210 to rotate, causing the gears 210 to drive the bottom connecting rod 211 to rotate, simultaneously driving the outer stirring plate 212 to stir. Furthermore, during the movement of the connecting rod 211, it will also drive... The bottom support ring 213 rotates along the inside of the collection tank 1. This rotation drives the second connecting shaft 214 at its center to rotate, which in turn drives the turbine agitator 215 to rotate, causing the liquid inside the collection tank 1 to rotate in the opposite direction. This allows the sediment inside to be stirred up by the water flow. Then, the valve 101 can be turned to discharge the liquid from the collection tank 1. As the liquid inside the collection tank 1 increases, its own weight increases the pressure on the bottom, pushing the bottom support plate 301 downwards along the inside of the limiting box 302 and squeezing the first damper 303 at the bottom of the support plate 301. The characteristics of the first damper 303 itself alleviate the pressure on the support plate 301. Simultaneously, the first damper... The first spring 304 on the outer side of the device 303 will automatically compress, using its elasticity to alleviate the impact force when the support plate 301 moves downward. During the movement of the support plate 301, multiple positioning blocks 305 will be pushed to move, and the positioning blocks 305 will push the first support rod 306 and the second support rod 308 on both sides to move respectively. The first support rod 306 and the second support rod 308 intersect each other, and the positioning shaft 307 passes through the intersection, so that the first support rod 306 and the second support rod 308 rotate around the positioning shaft 307 at the same time, pushing the connecting blocks 309 on both sides to move against the inside of the limiting box 302. During the rotation of the first support rod 306 and the second support rod 308, the limiting block 311 on one side will move.The movement of the limiting block 311 drives the movement of the third support rod 312. Since one end of each of the two third support rods 312 is joined together and penetrated by the positioning rod 313, when the limiting block 311 moves, the two third support rods 312 simultaneously rotate around the positioning rod 313, pushing the limiting block 311 to move along the inside of the limiting groove 310. The two third support rods 312 also push the limiting block 311, causing the slider 314 to move. Simultaneously, the second sliding groove 315 restricts the movement range of the slider 314, causing the slider 314 to pull the second spring 316 and the second damper 317 inside the second sliding groove 315. This utilizes the characteristics of the second damper 317 and the elasticity of the second spring 316 to alleviate some of the pressure on the support plate 301, preventing the first support rod 306 and the second support rod 308 from breaking or bending due to excessive pressure.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent water and fertilizer mixing tank, comprising a collection tank (1), characterized in that: A valve (101) is fixedly connected to the bottom outer wall of the collection tank (1); The inner wall of the collection tank (1) is provided with a stirring mechanism (2). The stirring mechanism (2) includes a sealing cover (201). The outer wall of the sealing cover (201) is slidably connected to the inner wall of the collection tank (1). A rubber sealing strip (202) is fixedly connected to the bottom outer wall of the sealing cover (201). A motor (203) is fixedly connected to the inner wall of the sealing cover (201). The output end of the motor (203) is fixedly connected to a first connecting shaft (204) through a coupling. A support is inserted into the outer wall of the first connecting shaft (204). The inner wall of the collection tank (1) is rotatably connected to the outer wall of the support frame (205). The inner wall of the support frame (205) is provided with a first sliding groove (206). A pressure spring (207) is fixedly connected to the inner wall of the support frame (205). A locking block (208) is fixedly connected to the outer wall of the end of the pressure spring (207) away from the support frame (205). The outer wall of the locking block (208) is engaged with the inner wall of the first connecting shaft (204). A rack (209) is fixedly connected to the inner wall of the collection tank (1).

2. The intelligent water and fertilizer mixing tank according to claim 1, characterized in that, The outer wall of the rack (209) is meshed with several gears (210). A connecting rod (211) is fixedly connected to the bottom outer wall of the gear (210). A stirring blade (212) is fixedly connected to the outer wall of the connecting rod (211). The outer wall of the connecting rod (211) is rotatably connected to the inner wall of the support frame (205). A support ring (213) is rotatably connected to the outer wall of the end of the connecting rod (211) away from the gear (210). The outer wall of the support ring (213) is slidably connected to the inner wall of the collection tank (1). A second connecting shaft (214) is fixedly connected to the top outer wall of the support ring (213). A turbine stirring blade (215) is fixedly connected to the outer wall of the second connecting shaft (214). A support mechanism (3) is provided on the outer wall of the collection tank (1).

3. The intelligent water and fertilizer mixing tank according to claim 2, characterized in that, The support mechanism (3) includes a support plate (301), the outer wall of the support plate (301) is fixedly connected to the outer wall of the collection tank (1), the outer wall of the support plate (301) is slidably connected to a limit box (302), a plurality of first dampers (303) are fixedly connected to the bottom outer wall of the support plate (301), a first spring (304) is fixedly connected to the outer wall of the plurality of first dampers (303), and the outer wall of the first damper (303) is fixedly connected to the inner wall of the limit box (302).

4. The intelligent water and fertilizer mixing tank according to claim 3, characterized in that, The bottom outer wall of the support plate (301) is fixedly connected to a plurality of positioning blocks (305), and the inner wall of the plurality of positioning blocks (305) is rotatably connected to a first support rod (306). The outer wall of the first support rod (306) away from the positioning blocks (305) is rotatably connected to a positioning shaft (307), and the outer wall of the positioning shaft (307) is slidably connected to the inner wall of the limiting box (302).

5. The intelligent water and fertilizer mixing tank according to claim 4, characterized in that, The outer wall of the positioning shaft (307) near the first support rod (306) is rotatably connected to the second support rod (308). The outer wall of the second support rod (308) is rotatably connected to the inner wall of the positioning block (305). The outer walls of the first support rod (306) and the outer walls of the second support rod (308) are both rotatably connected to connecting blocks (309).

6. The intelligent water and fertilizer mixing tank according to claim 5, characterized in that, The outer wall of the connecting block (309) is slidably connected to the inner wall of the limiting box (302). The inner walls of the first support rod (306) and the second support rod (308) are each provided with a plurality of limiting grooves (310). The inner walls of the limiting grooves (310) are slidably connected to limiting blocks (311).

7. The intelligent water and fertilizer mixing tank according to claim 6, characterized in that, The outer wall of the limiting block (311) is rotatably connected to a third support rod (312). The outer wall of the third support rod (312) away from the limiting block (311) is rotatably connected to a positioning rod (313). The other end of the positioning rod (313) is rotatably connected to a slider (314). The inner wall of the limiting box (302) is provided with several second sliding grooves (315).

8. The intelligent water and fertilizer mixing tank according to claim 7, characterized in that, The inner wall of the second slide groove (315) is slidably connected to the outer wall of the slider (314). The outer wall of the slider (314) is fixedly connected to a second spring (316). The outer wall of the second spring (316) is fixedly connected to the inner wall of the limiting box (302). The outer wall of the slider (314) is fixedly connected to a second damper (317).

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