A combined irrigation and fertilization system for salt-alkali tolerant crops

Abstract

This invention discloses a combined irrigation and fertilization device for salt-alkali tolerant crops, relating to the field of crop irrigation technology. It includes a main body with an adjustment mechanism fixedly inserted into its inner wall. The output end of the adjustment mechanism is fixedly connected to a spraying mechanism. The adjustment mechanism includes two outer shells. In this invention, through the precise coordination of a sprocket, chain, and transmission shaft, and the reciprocating motion of a piston, the device can automatically extract and mix seawater, nutrient solution, and fresh water, ensuring the uniformity of the mixture and improving the irrigation and fertilization effect. Users can easily adjust the concentration of seawater or nutrient solution in the irrigation water by adjusting the meshing of the gears on transmission shaft one and transmission shaft two, enabling the device to adapt to the growth needs of different crops, improving irrigation accuracy and efficiency. The adjustment process does not require the use of water pumps or other electrical equipment, reducing power consumption and energy dependence, while simplifying the operation and maintenance process, thus helping to reduce agricultural production costs.

Description

Technical Field

[0001] This invention relates to the field of crop irrigation technology, specifically to a combined irrigation and fertilization device for crops with salt and alkali tolerance. Background Technology

[0002] Crop irrigation, or irrigation operations carried out in agricultural cultivated areas, is a key link in ensuring the normal growth of crops. Saline-alkali land refers to soil types containing excessive soluble salts, which leads to decreased soil fertility and limited crop growth. Globally, saline-alkali land covers a wide area and poses a serious threat to agricultural production. Crop cultivation on saline-alkali land not only results in low crop yields but also often poor quality, seriously affecting the sustainability of agricultural production and food security. Therefore, cultivating salt-tolerant crops to effectively manage saline-alkali land has become an important issue in the current agricultural production field.

[0003] Currently, in the irrigation and fertilization of salt-tolerant crops, farmers generally rely on electronic devices such as water pumps to precisely control the ratio of freshwater to nutrient solution. However, these water pump devices integrate multiple precision components such as motors, sensors, and controllers, which not only makes the overall structure more complex, but also requires shutdown for repair if a component fails, affecting the continuous operation of the equipment. Furthermore, it increases the technical threshold for installation and the frequency of subsequent maintenance, as well as the difficulty of operation and overall operating costs for farmers. Summary of the Invention

[0004] The purpose of this invention is to provide a combined irrigation and fertilization device for salt-alkali tolerant crops. By pushing the first gear shaft to slide on the surface of the second shaft, the connection method between the first gear shaft and the second shaft is adjusted, the rotational speed of the first gear shaft and the bottom gear is controlled, and the flow rate of seawater and nutrient solution is controlled under the action of the sprocket, chain and piston, so as to solve the problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a combined irrigation and fertilization device for salt-alkali tolerant crops, comprising a main body, wherein an adjustment mechanism is fixedly inserted into the inner surface wall of the main body, and the output end of the adjustment mechanism is fixedly connected to a spraying mechanism;

[0006] The adjusting mechanism includes two outer shells. Each of the two outer shells has a set of circular holes (I and II) on its top. A gear shift shaft (I) is movably inserted into the inner wall of each of the two circular holes (II). A rotating shaft (II) is movably inserted into the inner wall of each of the two gear shift shafts (I). The outer walls of each of the two rotating shafts (II) are movably inserted inside the outer shells. A gear (I) is fixedly fitted onto the outer wall of each of the two rotating shafts (II). The outer walls of each of the two gear shift shafts (I) are meshed with the inner wall of each gear (II). The inner walls of the two sets of circular holes (I) are movably inserted into the outer walls of each gear (II). The outer walls of each gear (II) are fixedly fitted onto the outer walls of each gear (II), and the outer walls of each gear (II) are meshed with the inner walls of each gear (I). Next, sprockets are fixedly fitted onto the outer walls of both gear shafts. Through the precise cooperation of the sprockets, chains, and gear shafts, as well as the reciprocating motion of the piston, the equipment can automatically extract and mix seawater, nutrient solution, and fresh water, ensuring the uniformity of the mixture and improving the irrigation and fertilization effect. Users can easily adjust the concentration of seawater or nutrient solution in the irrigation water by adjusting the meshing mode of the gears on gear shafts one and two, enabling the equipment to adapt to the growth needs of different crops, improving the accuracy and efficiency of irrigation. The adjustment process does not require the use of water pumps or other electrical equipment, which not only reduces power consumption and energy dependence, but also simplifies the operation and maintenance process of the equipment, helping to reduce agricultural production costs.

[0007] Preferably, bearings are fixedly sleeved on the outer walls of both gear shafts, and multiple sets of positioning holes are opened on the outer walls of both gear shafts. A set of mounting shells is fixedly installed on the top of each of the two bearings. A pull rod is movably inserted into the inner wall of each of the two sets of mounting shells. A spring is fixedly installed on one side of the outer wall of each of the two sets of pull rods, and one side of the outer wall of each set of springs is fixedly connected to one side of the inner wall of the mounting shell.

[0008] Preferably, a locking block is fixedly installed on one side of the outer wall of each of the two sets of pull rods, and the outer walls of the two sets of locking blocks are movably inserted into the interior of the mounting shell. The inner walls of the two sets of positioning holes are movably inserted into the outer walls of the locking blocks. Storage boxes are fixedly fitted on the outer walls of the two shells. Liquid extraction boxes are fixedly installed at the bottom of the two storage boxes. One-way valves are fixedly connected to the bottom of the two liquid extraction boxes.

[0009] Preferably, a mixing tank is fixedly connected between the output ends of the two one-way valves, and a one-way valve is fixedly connected to the input end of the mixing tank. A chain is movably sleeved between the outer walls of the two sprockets. A positioning rod is fixedly installed at the bottom of each of the two storage tanks. A gear is movably sleeved on the outer wall of each of the two positioning rods, and the outer walls of the two gears mesh with the inner walls of the gears. A positioning rod is fixedly installed at the bottom of each of the two gears. The trolley design allows the entire irrigation and fertilization equipment to easily move between different fields, greatly improving the flexibility and applicability of the equipment. The rotating shaft drives the stirring paddle fixed on the outer wall to fully mix seawater, fresh water, and nutrient solution during rotation, ensuring the uniformity and effectiveness of the mixture, which helps crops grow and develop better, and improves yield and quality.

[0010] Preferably, the outer walls of the two positioning rods are movably fitted with connecting brackets, the inner walls of the two connecting brackets are movably inserted with connecting seats, one side of the outer wall of each of the two connecting seats is fixedly installed with a piston, and the outer walls of the two pistons are movably inserted into the inside of the liquid extraction tank. The tops of the two liquid extraction tanks are fixedly connected with one-way valves, and the outer walls of the two one-way valves are fixedly inserted into the inside of the storage tank.

[0011] Preferably, the main structure includes a trolley, with two support frames fixedly installed on the top of the trolley. The tops of the two support frames are fixedly connected to the bottoms of the two storage boxes, and a freshwater tank is fixedly installed between the tops of the two support frames.

[0012] Preferably, the outer walls of both outer shells are fixedly inserted into the interior of the freshwater tank, the input end of the second one-way valve is fixedly connected to the output end of the freshwater tank, a motor is fixedly installed on the top of the freshwater tank, a rotating shaft is fixedly installed on the output end of the motor, and the outer wall of the rotating shaft is movably inserted into the interior of the freshwater tank.

[0013] Preferably, the outer wall of the first rotating shaft is movably inserted into the interior of the mixing chamber, the outer wall of the first rotating shaft is fixedly fitted with a sprocket, the outer wall of the chain is movably fitted with the outer wall of the sprocket, and a set of stirring paddles is fixedly fitted on the outer wall of the first rotating shaft.

[0014] Preferably, the spraying mechanism includes two cylinders, the input ends of the two cylinders are fixedly connected to the output end of the mixing box, a set of support seats are fixedly fitted on the outer walls of the two cylinders, the bottom of the two sets of support seats are fixedly connected to the top of the trolley, and a spraying pipe is movably inserted into the inner walls of the two cylinders.

[0015] Preferably, spring 2 is fixedly installed on one side of the outer wall of each of the two spray pipes 1, and one side of the outer wall of each of the two spring 2 is fixedly connected to one side of the inner wall of the cylinder. Spring 3 is fixedly installed on one side of the inner wall of each of the two spray pipes 1, and spray pipe 2 is fixedly installed on one side of the outer wall of each of the two spring 3. The outer walls of the two spray pipe 2 are movably inserted into the interior of the spray pipe 1. After the irrigation water flows into the cylinder, the impact force of the water flow pushes the spray pipes to automatically extend, increasing the coverage area of ​​the irrigation equipment. The extension and retraction process of the spray pipes is entirely driven by the water flow, without manual intervention. This not only saves time and labor costs, but also makes irrigation operations more convenient and efficient.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, through the precise coordination of sprockets, chains, and gearboxes, as well as the reciprocating motion of pistons, the equipment can automatically extract and mix seawater, nutrient solution, and fresh water, ensuring the uniformity of the mixture and improving the effect of irrigation and fertilization. Users can easily adjust the concentration of seawater or nutrient solution in the irrigation water by adjusting the meshing mode of the gears on gearboxes one and two, enabling the equipment to adapt to the growth needs of different crops, improving the accuracy and efficiency of irrigation. The adjustment process does not require the use of water pumps or other electrical equipment, which not only reduces power consumption and energy dependence, but also simplifies the operation and maintenance process of the equipment, helping to reduce agricultural production costs.

[0018] 2. In this invention, the design of the trolley allows the entire irrigation and fertilization equipment to easily move between different fields, greatly improving the flexibility and applicability of the equipment. The rotating shaft drives the stirring paddle fixed on the outer wall to fully mix seawater, fresh water and nutrient solution during the rotation process, ensuring the uniformity and effectiveness of the mixture, which helps crops grow and develop better, and improves yield and quality.

[0019] 3. In this invention, after the irrigation water flows into the cylinder, the spray pipe is automatically extended by the impact force of the water flow, which increases the coverage area of ​​the irrigation equipment. The extension and retraction process of the spray pipe is completely driven by the water flow and does not require manual intervention. This not only saves time and labor costs, but also makes irrigation operations more convenient and efficient. Attached Figure Description

[0020] Figure 1 This is a perspective view of the main structure of a combined irrigation and fertilization device for salt-alkali tolerant crops according to the present invention.

[0021] Figure 2 This is a top-down exploded view of the main structure of a combined irrigation and fertilization device for salt-alkali tolerant crops according to the present invention;

[0022] Figure 3This is a partial three-dimensional sectional view of the regulating mechanism in a combined irrigation and fertilization device for salt-alkali tolerant crops according to the present invention;

[0023] Figure 4 This is a partially disassembled schematic diagram of the regulating mechanism in a combined irrigation and fertilization device for salt-alkali tolerant crops according to the present invention;

[0024] Figure 5 This is a partial bottom perspective view of the regulating mechanism in a combined irrigation and fertilization device for salt-alkali tolerant crops according to the present invention;

[0025] Figure 6 This is a partial sectional view of the regulating mechanism in a combined irrigation and fertilization device for salt-alkali tolerant crops according to the present invention;

[0026] Figure 7 This is a bottom-view exploded view of the spraying mechanism in a combined irrigation and fertilization device for salt-alkali tolerant crops according to the present invention.

[0027] In the diagram: 1. Main structure; 101. Trolley; 102. Support frame; 103. Freshwater tank; 104. Motor; 105. Shaft 1; 106. Sprocket 1; 107. Agitator; 2. Adjustment mechanism; 201. Outer shell; 202. Hole 1; 203. Hole 2; 204. Gearbox 1; 205. Shaft 2; 206. Gear 1; 207. Gearbox 2; 208. Gear 2; 209. Sprocket 2; 210. Bearing; 211. Positioning hole; 212. Mounting shell; 213. Tie rod; 21 4. Spring 1; 215. Locking block; 216. Storage tank; 217. Liquid extraction tank; 218. One-way valve 1; 219. Mixing tank; 220. One-way valve 2; 221. Chain; 222. Positioning rod 1; 223. Gear 3; 224. Positioning rod 2; 225. Connecting frame; 226. Connecting seat; 227. Piston; 228. One-way valve 3; 3. Spraying mechanism; 301. Cylinder; 302. Support seat; 303. Spraying pipe 1; 304. Spring 2; 305. Spring 3; 306. Spraying pipe 2. Detailed Implementation

[0028] 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.

[0029] Example 1: Refer to Figure 1 - Figure 7As shown, the present invention provides a combined irrigation and fertilization device for salt-alkali tolerant crops, including a main body 1, an adjustment mechanism 2 fixedly inserted into the inner surface wall of the main body 1, and a spraying mechanism 3 fixedly connected to the output end of the adjustment mechanism 2.

[0030] The adjusting mechanism 2 includes two outer shells 201. Each of the two outer shells 201 has a set of circular holes 202 on its top and a second set of circular holes 203 on its top. A first gear shaft 204 is movably inserted into the inner wall of each of the two second sets of circular holes 203. A second rotating shaft 205 is movably inserted into the inner wall of each of the two first gear shafts 204, and the outer walls of each second rotating shaft 205 are movably inserted inside the outer shell 201. A first gear 206 is fixedly fitted onto the outer wall of each of the two second rotating shafts 205. A second gear 207 is meshed with the outer walls of each of the two first gear shafts 204, and the inner walls of the two sets of circular holes 202 are movably inserted into the outer walls of the second gear shaft 207. Gear 208 is fixedly fitted onto the outer wall of each gear 207, and the outer walls of both gears 208 mesh with the inner wall of gear 1 206. Sprocket 209 is fixedly fitted onto the outer wall of each of the two gear shafts 207. Bearing 210 is fixedly fitted onto the outer wall of each of the two gear shafts 1 204. Multiple sets of positioning holes 211 are formed on the outer wall of each of the two gear shafts 1 204. A set of mounting housings 212 is fixedly installed on the top of each of the two bearings 210. A pull rod 213 is movably inserted into the inner wall of each of the two sets of mounting housings 212. A spring 214 is fixedly installed on one side of the outer wall of each of the two sets of pull rods 213, and one side of the outer wall of each of the two sets of springs 214 is fixedly connected to one side of the inner wall of the mounting housing 212. Each of the two sets of pull rods 213 has a locking block 215 fixedly installed on one side of its outer wall. The outer walls of both sets of locking blocks 215 are movably inserted into the interior of the mounting shell 212. The inner walls of both sets of positioning holes 211 are movably inserted into the outer walls of the locking blocks 215. Storage boxes 216 are fixedly fitted onto the outer walls of both shells 201. A liquid extraction box 217 is fixedly installed at the bottom of each of the two storage boxes 216. A one-way valve 218 is fixedly connected to the bottom of each of the two liquid extraction boxes 217. A mixing box 219 is fixedly connected between the output ends of each of the two one-way valves 218. A one-way valve 220 is fixedly connected to the input end of each mixing box 219. A chain 221 is movably fitted between the outer walls of the two sprockets 209. Each of the storage tanks 216 has a positioning rod 222 fixedly installed at its bottom. Gears 223 are movably fitted onto the outer walls of both positioning rods 222, and the outer walls of both gears 223 mesh with the inner walls of gears 206. Positioning rods 224 are fixedly installed at the bottom of each gear 223. Connecting brackets 225 are movably fitted onto the outer walls of both positioning rods 224. Connecting seats 226 are movably inserted into the inner walls of both connecting brackets 225. Pistons 227 are fixedly installed on one side of the outer walls of both connecting seats 226, and the outer walls of both pistons 227 are movably inserted into the interior of the liquid extraction tank 217. One-way valves 228 are fixedly connected to the tops of both liquid extraction tanks 217.Furthermore, both one-way valves 228 are fixedly inserted into the interior of storage tank 216 on their outer outer walls;

[0031] The main structure 1 includes a trolley 101, with two support frames 102 fixedly mounted on its top. The tops of the two support frames 102 are fixedly connected to the bottoms of two storage tanks 216. A freshwater tank 103 is fixedly mounted between the tops of the two support frames 102. The outer walls of the two outer shells 201 are fixedly inserted into the interior of the freshwater tank 103. The input end of the one-way valve 220 is fixedly connected to the output end of the freshwater tank 103. A motor 104 is fixedly installed on the top of the 3. A rotating shaft 105 is fixedly installed on the output end of the motor 104. The outer wall of the rotating shaft 105 is movably inserted into the inside of the fresh water tank 103. The outer wall of the rotating shaft 105 is movably inserted into the inside of the mixing tank 219. A sprocket 106 is fixedly sleeved on the outer wall of the rotating shaft 105. The outer wall of the chain 221 is movably sleeved with the outer wall of the sprocket 106. A set of stirring paddles 107 is fixedly sleeved on the outer wall of the rotating shaft 105.

[0032] In this embodiment, when using the device, people can add fresh water, seawater, and nutrient solution to the tanks through the water inlets on the top of the fresh water tank 103 and the two storage tanks 216, respectively. After the motor 104 is started, it can drive the rotating shaft 105 to rotate inside the fresh water tank 103. At this time, the sprocket 106 on the surface of the rotating shaft 105 rotates accordingly. The chain 221 sleeved on the surface of the sprocket 106 moves under the drive of the sprocket 106. The sprockets 209 located at both ends of the chain 221 will be driven to rotate by the chain 221. The gear shift shafts 207 inserted inside the two sprockets 209 begin to rotate. The gear shift shafts 207 mesh with the gear shift shaft 204. Therefore, the gear shift shafts 207 will drive the gear shift shaft 204 and the gear fixedly sleeved on the outer wall. 208 rotates, and a second rotating shaft 205 is movably inserted inside the first gear shaft 204. A protrusion is installed on the outer wall of the second rotating shaft 205 to ensure that it can slide up and down inside the first gear shaft 204. When the first gear shaft 204 rotates, it drives the second rotating shaft 205 to rotate. At this time, the first gear 206, which is fixedly sleeved on the outer wall of the second rotating shaft 205, begins to rotate. The second gear 208, driven by the second gear shaft 207, also drives the second gear 208. The rotating second gear 208 causes the third gear 223, which meshes with it, to rotate on the surface of the first positioning rod 222. The second positioning rod 224, fixed at the bottom edge of the third gear 223, begins to rotate, causing one end of the connecting bracket 225, which is sleeved on the outer wall of the second positioning rod 224, to rotate. The other end of the connector 225 converts the circular motion into reciprocating linear motion. Simultaneously, the connecting seat 226 pulls the piston 227 to move inside the extraction tank 217. When the piston 227 moves outward, the air pressure inside the extraction tank 217 decreases, and the corresponding seawater or nutrient solution in the storage tank 216 enters the extraction tank 217 through the second check valve 220. When the piston 227 moves inward, the liquid in the extraction tank 217 flows out through the first check valve 218 under pressure and enters the mixing tank 219. At this time, the freshwater in the freshwater tank 103 also flows through the third check valve 228 into the mixing tank 219. The force required to open the third check valve 228 is much less than the other two check valves. This is to prevent seawater and nutrient solution from contaminating the unused freshwater. The user's own weight is sufficient to open the one-way valve 228. When adjusting the concentration of seawater and nutrient solution, the user can first turn off the motor 104, and then pull the lever 213 outward. At this time, the lever 213 can compress the spring 214, causing the locking block 215 to be pulled out from the positioning hole 211. The user can then push the gear shaft 204 to slide on the surface of the rotating shaft 205. The outer walls of both the gear shaft 204 and the gear shaft 207 are fixedly fitted with three gears of different sizes, which cannot be engaged simultaneously. When the user wants a lower concentration of seawater or nutrient solution, the large gear on the gear shaft 204 can be engaged with the small gear on the gear shaft 207. At this time, the other gears are disengaged, the speed of the gear shaft 204 decreases, and the piston 227 moves more slowly.When the flow rates of other liquids remain constant, the flow rate of the corresponding seawater or nutrient solution decreases, resulting in a lower concentration of seawater or nutrient solution in the liquid inside the mixing tank 219. As the user continues to push the first gear shaft 204 downwards, the middle gears of the two gear shafts mesh, while the other gears disengage, maintaining a consistent rotational speed between the two gear shafts. The piston 227 keeps the liquid flow rate moderate, and the concentration of seawater or nutrient solution in the mixing tank 219 remains at a moderate level. If the first gear shaft 204 continues to descend, its small gear meshes with the large gear of the second gear shaft 207, causing the rotational speed of the first gear shaft 204 to be greater than that of the second gear shaft 207. This pushes the piston 227 to quickly displace a large amount of seawater or nutrient solution. The concentration of water or nutrient solution is delivered into the mixing tank 219, increasing the concentration of seawater or nutrient solution in the liquid. After the position of the gear shift shaft 204 is determined, as the user releases their grip, the compressed spring 214 drives the locking block 215 to insert into the positioning hole 211, fixing the position of the gear shift shaft 204. This device utilizes part of the principle of a gearbox, allowing users to quickly adjust the concentration of seawater or nutrient solution in the irrigation water manually. The equipment uses a motor 104 as its sole power source, reducing electricity consumption, which helps lower agricultural production costs and reduces dependence on energy. The operation and maintenance of the equipment become simpler, reducing the skill requirements for the operator.

[0033] Example 2: According to Figure 1 - Figure 7 As shown, the main body 1 includes a trolley 101, with two support frames 102 fixedly mounted on the top of the trolley 101. The tops of the two support frames 102 are fixedly connected to the bottoms of the two storage tanks 216. A freshwater tank 103 is fixedly mounted between the tops of the two support frames 102. The outer walls of the two outer shells 201 are fixedly inserted into the inside of the freshwater tank 103. The input end of the one-way valve 220 is fixedly connected to the output end of the freshwater tank 103. A motor 104 is fixedly installed on the top of the 03. A rotating shaft 105 is fixedly installed on the output end of the motor 104. The outer wall of the rotating shaft 105 is movably inserted into the inside of the freshwater tank 103. The outer wall of the rotating shaft 105 is movably inserted into the inside of the mixing tank 219. A sprocket 106 is fixedly sleeved on the outer wall of the rotating shaft 105. The outer wall of the chain 221 is movably sleeved with the outer wall of the sprocket 106. A set of stirring paddles 107 is fixedly sleeved on the outer wall of the rotating shaft 105.

[0034] In this embodiment, the trolley 101 allows the equipment to be easily moved between different fields without requiring a lot of manpower for transportation, reducing fatigue caused by long-term transportation. After the motor 104 is started, it will drive the rotating shaft 105 to start rotating. At this time, a set of stirring paddles 107 fixedly installed on the outer wall of the rotating shaft 105 will rotate inside the mixing box 219, so that seawater, fresh water and nutrient solution can be fully mixed. The uniform mixture can be more effectively absorbed and utilized by crops, improving the effect of irrigation and fertilization, and reducing the loss and waste of fertilizer and water resources.

[0035] Example 3: According to Figure 1 as well as Figure 7 As shown, the spraying mechanism 3 includes two cylinders 301. The input ends of the two cylinders 301 are fixedly connected to the output end of the mixing box 219. A set of support seats 302 is fixedly fitted on the outer wall of each of the two cylinders 301. The bottom of the two sets of support seats 302 is fixedly connected to the top of the trolley 101. A spraying pipe 303 is movably inserted into the inner wall of each of the two cylinders 301. A spring 304 is fixedly installed on one side of the outer wall of each of the two spraying pipes 303, and one side of the outer wall of each of the two springs 304 is fixedly connected to one side of the inner wall of each cylinder 301. A spring 305 is fixedly installed on one side of the inner wall of each of the two spraying pipes 303. A spraying pipe 306 is fixedly installed on one side of the outer wall of each of the two springs 305, and the outer walls of each of the two spraying pipes 306 are movably inserted into the inside of the spraying pipe 303.

[0036] In this embodiment, when the mixed irrigation water enters the cylinder 301, the impact force of the water flow will push the second spray pipe 306 to compress the third spring 305 and extend it from the inside of the first spray pipe 303. When the third spring 305 can no longer be compressed, it will drive the first spray pipe 303 forward, causing the first spray pipe 303 to compress the second spring 304 and extend it from the inside of the cylinder 301. Irrigation water can be sprayed out from the holes at the bottom of the first spray pipe 303 and the second spray pipe 306. The two spray pipes can extend under the impact of the water flow, thereby increasing the coverage area of ​​the irrigation equipment. In one irrigation operation, more paddy field area can be covered, which also improves irrigation efficiency. With the help of the water flow to move the two spray pipes, after the irrigation is completed, the two compressed springs begin to extend, pushing the spray pipes back into the cylinder 301. The whole operation does not require manual handling, significantly reducing manual intervention in the irrigation and fertilization process, and greatly saving time and labor costs.

[0037] The working principle of the entire mechanism is as follows: The trolley 101 facilitates the movement of the salt-alkali tolerant irrigation and fertilization equipment for crops, allowing it to easily shuttle between different fields. When using the equipment, the user simply adds fresh water, seawater, and nutrient solution respectively through the water inlets on the top of the fresh water tank 103 and the two storage tanks 216. Once the motor 104 is started, it drives the rotating shaft 105 to rotate, which in turn drives the sprocket 106 and the chain 221 to move. This movement will sequentially drive the rotation of the sprocket 209, the gear shift shaft 207, the gear shift shaft 104, and the gear 208, causing the rotating shaft 205 inside the gear shift shaft 104 to rotate as well. The gear 106 on its outer wall drives the gear 323 to rotate, and the gear 322... The bottom positioning rod 224 performs a circular motion, which is converted into a reciprocating linear motion by the connecting frame 225. This motion then pulls the piston 227 to move within the extraction tank 217. The reciprocating motion of the piston 227 enables the automatic extraction and mixing of seawater, nutrient solution, and freshwater. When the piston 227 moves outward, the internal air pressure of the extraction tank 217 decreases, drawing in seawater or nutrient solution through the one-way valve 220. When the piston 227 moves inward, the liquid in the extraction tank 217 flows out through the one-way valve 218 under pressure and enters the mixing tank 219. Simultaneously, the freshwater in the freshwater tank 103 also flows into the mixing tank 219 through the one-way valve 228. The design of the one-way valve 228 ensures that the freshwater is not contaminated by seawater and nutrient solution. Simply turn off motor 104, pull lever 213, compress spring 214 to pull block 215 out of positioning hole 211, then push gear shift shaft 204 to slide on the surface of shaft 205. Select the appropriate gear meshing method. Meshing between large and small gears reduces the movement speed of piston 227, thereby reducing the flow rate of the corresponding liquid and lowering the concentration of seawater or nutrient solution in the liquid inside mixing tank 219. Meshing between medium gears maintains a medium flow rate and concentration. Meshing between small and large gears increases the movement speed of piston 227, increases the flow rate of the corresponding liquid, and increases the concentration of seawater or nutrient solution in the liquid inside mixing tank 219. This device uses motor 104 as the sole power source, reducing power consumption and energy dependence. This design simplifies the operation and maintenance of the equipment. A set of stirring paddles 107 are fixedly installed on the outer wall of the rotating shaft 105. These paddles 107 rotate inside the mixing tank 219 as the rotating shaft 105 rotates, effectively mixing seawater, fresh water, and nutrient solution, thus improving irrigation and fertilization efficiency. When the evenly mixed irrigation water flows into the cylinder 301, its strong impact force pushes the spray pipe 2 306 to compress the spring 3 305, causing the spray pipe 2 306 to extend from the inside of the spray pipe 1 303. As the spring 3 305 reaches its compression limit, it further drives the spray pipe 1 303 forward. At the same time, the spray pipe 1 303 also compresses the spring 2 304 and extends out of the cylinder 301.Irrigation water can be evenly sprayed out through the nozzles at the bottom of spray pipe 303 and spray pipe 306, allowing the two spray pipes to automatically extend under the impact of the water flow. This increases the coverage area of ​​the irrigation equipment and makes irrigation more convenient and efficient. After irrigation, the compressed springs 304 and 305 automatically extend, pushing spray pipes 303 and 306 back into the cylinder 301, preparing for the next irrigation operation.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined irrigation and fertilization system for salt-alkali tolerant crops, comprising a main body, characterized in that: An adjustment mechanism is fixedly inserted into the inner surface wall of the main body, and the output end of the adjustment mechanism is fixedly connected to a spraying mechanism. The adjustment mechanism includes two outer shells. Each of the two outer shells has a set of circular holes I and two circular holes II on its top. A gear shift shaft I is movably inserted into the inner surface of each of the two circular holes II. A rotating shaft II is movably inserted into the inner surface of each of the two gear shift shafts I. The outer surfaces of the two rotating shafts II are movably inserted inside the outer shells. A gear I is fixedly sleeved on the outer surface of each of the two rotating shafts II. A gear II is meshed with the outer surface of each of the two gear shift shafts I. The inner surfaces of the two sets of circular holes I are movably inserted into the outer surface of the gear shift shaft II. A gear II is fixedly sleeved on the outer surface of each of the two gears II. The outer surfaces of the two gears II are meshed with the inner surface of the gears I. A sprocket II is fixedly sleeved on the outer surface of each of the two gear shift shafts II. Bearings are fixedly fitted on the outer walls of both gear shafts. Multiple sets of positioning holes are opened on the outer walls of both gear shafts. A set of mounting shells is fixedly installed on the top of both bearings. Pull rods are movably inserted into the inner walls of both sets of mounting shells. Springs are fixedly installed on one side of the outer wall of both sets of pull rods, and one side of the outer wall of both sets of springs is fixedly connected to one side of the inner wall of the mounting shell. Both sets of pull rods have a locking block fixedly installed on one side of their outer wall, and the outer walls of both sets of locking blocks are movably inserted into the interior of the mounting shell. The inner walls of both sets of positioning holes are movably inserted into the outer walls of the locking blocks. Storage boxes are fixedly fitted on the outer walls of both shells. Liquid extraction boxes are fixedly installed at the bottom of both storage boxes. One-way valves are fixedly connected to the bottom of both liquid extraction boxes. A mixing tank is fixedly connected between the output ends of the two one-way valves, and a one-way valve is fixedly connected to the input end of the mixing tank. A chain is movably sleeved between the outer walls of the two sprockets. A positioning rod is fixedly installed at the bottom of the two storage tanks. A gear is movably sleeved on the outer wall of the two positioning rods, and the outer walls of the two gears mesh with the inner wall of the gears. A positioning rod is fixedly installed at the bottom of the two gears. The outer walls of the two positioning rods are movably fitted with connecting brackets, the inner walls of the two connecting brackets are movably inserted with connecting seats, one side of the outer wall of each of the two connecting seats is fixedly installed with a piston, and the outer walls of the two pistons are movably inserted into the inside of the liquid extraction tank. The tops of the two liquid extraction tanks are fixedly connected with one-way valves, and the outer walls of the two one-way valves are fixedly inserted into the inside of the storage tank.

2. The combined irrigation and fertilization equipment for salt-alkali tolerant crops according to claim 1, characterized in that: The main structure includes a trolley, on the top of which two support frames are fixedly installed. The tops of the two support frames are fixedly connected to the bottoms of the two storage tanks, and a freshwater tank is fixedly installed between the tops of the two support frames.

3. The combined irrigation and fertilization equipment for salt-alkali tolerant crops according to claim 2, characterized in that: The outer walls of both outer shells are fixedly inserted into the inside of the freshwater tank. The input end of the second one-way valve is fixedly connected to the output end of the freshwater tank. A motor is fixedly installed on the top of the freshwater tank. A rotating shaft is fixedly installed on the output end of the motor, and the outer wall of the rotating shaft is movably inserted into the inside of the freshwater tank.

4. The combined irrigation and fertilization equipment for salt-alkali tolerant crops according to claim 3, characterized in that: The outer wall of the rotating shaft is movably inserted into the interior of the mixing tank. A sprocket is fixedly sleeved on the outer wall of the rotating shaft. The outer wall of the chain is movably sleeved with the outer wall of the sprocket. A set of stirring paddles is fixedly sleeved on the outer wall of the rotating shaft.

5. The combined irrigation and fertilization equipment for salt-alkali tolerant crops according to claim 4, characterized in that: The spraying mechanism includes two cylinders. The input ends of the two cylinders are fixedly connected to the output end of the mixing box. A set of support seats is fixedly fitted on the outer wall of each of the two cylinders. The bottom of the two sets of support seats is fixedly connected to the top of the trolley. A spraying pipe is movably inserted into the inner wall of each of the two cylinders.

6. The combined irrigation and fertilization equipment for salt-alkali tolerant crops according to claim 5, characterized in that: Spring 2 is fixedly installed on one side of the outer wall of each of the two spray pipes 1, and one side of the outer wall of each of the two springs 2 is fixedly connected to one side of the inner wall of the cylinder. Spring 3 is fixedly installed on one side of the inner wall of each of the two spray pipes 1, and spray pipe 2 is fixedly installed on one side of the outer wall of each of the two springs 3, and the outer walls of the two spray pipes 2 are movably inserted into the interior of the spray pipe 1.

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