Greenhouse water and fertilizer integrated irrigation and fertilization device

Abstract

The embodiment of the application discloses a greenhouse water and fertilizer integrated irrigation and fertilization device, which comprises a main body mechanism, the main body mechanism comprises a water and fertilizer tank and a water and fertilizer stirring and switching mechanism arranged in the water and fertilizer tank, the water and fertilizer stirring and switching mechanism comprises a stirring paddle switching unit, the stirring paddle switching unit is located in the water and fertilizer tank, and the stirring paddle switching unit is used for switching different stirring modes based on different water and fertilizer mixing requirements; the water and fertilizer stirring and switching mechanism further comprises a water and fertilizer conveying switching unit, the water and fertilizer conveying switching unit is located outside the water and fertilizer tank, and the water and fertilizer conveying switching unit is used for conveying water and fertilizer according to different water and fertilizer types and stirring paddles. Through the lifting operation of the wall scraping anchor paddle and the shearing paddle, the embodiment of the application can automatically switch the stirring mode according to different water and fertilizer types, realize the uniform mixing requirement of special fertilizers such as suspended fertilizer and high-viscosity fertilizer, the wall scraping anchor paddle effectively removes the adhesion of high-viscosity fertilizer on the inner wall of the tank, and the shearing paddle ensures that the suspended fertilizer is uniformly suspended.

Description

Technical Field

[0001] This application relates to the field of agricultural fertilization equipment technology, specifically to an integrated water and fertilizer irrigation and fertilization device for greenhouses. Background Technology

[0002] The fertigation system, used for irrigation, is a modern agricultural technology that integrates the dual functions of irrigation and fertilization. By dissolving fertilizer in irrigation water and then evenly delivering it to the crop roots via a pipeline system, this method effectively manages water and fertilizer use, ensuring crops grow in the most suitable environment, thereby improving water resource utilization efficiency and crop yield and quality. Fertilizer-integrated irrigation technology uses a pressure system to dissolve soluble fertilizer and precisely deliver it to the crop root zone. Its core lies in on-demand supply and synchronized water and fertilizer application, which improves water and fertilizer utilization efficiency while reducing resource waste and environmental pollution. It has become the mainstream fertilization model for large-scale planting.

[0003] However, integrated water and fertilizer systems have some drawbacks in practical applications. First, achieving efficient and uniform mixing of water and fertilizer is difficult. Second, the variety of fertilizers, including suspension fertilizers and high-viscosity fertilizers, means that incomplete dissolution or uneven mixing can lead to uneven fertilizer distribution during irrigation. Furthermore, the mixing function of existing integrated water and fertilizer irrigation equipment is limited to a single type of paddle, making it difficult to efficiently process suspension fertilizers or high-viscosity fertilizers, thus affecting the uniform mixing of fertilizers. Summary of the Invention

[0004] The purpose of this application is to provide a greenhouse water and fertilizer integrated irrigation and fertilization device, so as to at least solve the problem mentioned in the background art that the existing water and fertilizer integrated system cannot specifically mix and process suspended fertilizer or high viscosity fertilizer.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] The integrated water and fertilizer irrigation and fertilization device for greenhouses includes:

[0007] The main structure includes a water and fertilizer tank and a fertilizer delivery pipe. The fertilizer delivery pipe is connected to the water and fertilizer tank via a pipeline and is used to transport and discharge the water and fertilizer in the water and fertilizer tank.

[0008] A water and fertilizer mixing and switching mechanism is installed inside the water and fertilizer tank. The water and fertilizer mixing and switching mechanism includes a stirring paddle switching unit. The stirring paddle switching unit is located inside the water and fertilizer tank and is used to switch different mixing modes based on different water and fertilizer mixing needs.

[0009] The water and fertilizer mixing and switching mechanism also includes a water and fertilizer conveying and switching unit, which is located outside the water and fertilizer tank. The water and fertilizer conveying and switching unit is used to convey water and fertilizer according to different water and fertilizer types and stirring paddles.

[0010] Furthermore, the stirring paddle switching unit includes a spline shaft, on the outer surface of which two first key shells are slidably connected. A bottom beam is fixedly installed on one of the first key shells. A wall scraping anchor is fixedly connected to the end of the bottom beam. A rotating plate is fixedly installed on the top of the wall scraping anchor, and the rotating plate is located above the bottom beam.

[0011] The outer ring of the other first key shell is coaxially fixedly mounted on the rotating plate;

[0012] A second key shell is also slidably connected to the spline shaft. A bracket is fixedly installed on the outer surface of the second key shell, and a shearing paddle is fixedly installed on the bottom surface of the bracket.

[0013] Furthermore, three sealing shells are fixedly installed on the inner wall of the water and fertilizer tank. A dual-shaft motor is fixedly installed on the inner wall of each sealing shell. Two ball screws are rotatably connected to the inner wall of each sealing shell. A screw nut is threaded onto the outer surface of each ball screw. A support plate is fixedly installed on the outer surface of each screw nut.

[0014] Each dual-axis motor has a corresponding synchronous pulley fixedly mounted on its output end and ball screw. A synchronous belt is connected between the two synchronous pulleys for transmission. The synchronous belt enables the dual-axis motor to synchronously drive the two ball screws to rotate, causing the screw nut to move along the axial direction of the ball screw. This adjusts the lifting and lowering of the wall scraping anchor to adapt to different water and fertilizer levels, ensuring effective scraping of the deposits on the inner wall of the tank during the mixing process.

[0015] Furthermore, the interior of the water and fertilizer tank is equipped with two ring plates. The outer surface of one ring plate is slidably connected to the bottom of the wall scraping anchor, and the interior of the other ring plate is slidably connected to the outer surface of the support.

[0016] An extension support plate is fixedly installed on one side of the bottom beam. A rotating shaft is rotatably connected to the extension support plate. An auxiliary propeller is fixedly installed on the rotating shaft. A linkage gear is rotatably installed on the extension support plate. The linkage gear meshes with the inner ring tooth surface of one of the ring plates. Since the ring plates can only be raised and lowered without rotating, when the bottom beam moves, it drives the linkage gear to move relative to the ring plate, which can cause the linkage gear to rotate.

[0017] The linkage gear and the rotating shaft are connected by a pulley and a transmission belt. When the linkage gear rotates, it drives the rotating shaft to rotate, thereby using the auxiliary propeller to improve the water and fertilizer mixing effect.

[0018] Furthermore, each ring plate has an outer ring groove on its outer surface, and the ring plate is slidably connected to the bottom beam of the wall scraping anchor through the outer ring groove.

[0019] Furthermore, guide rods are fixedly installed on the upper and lower surfaces of each sealing shell. The outer surface of each guide rod is slidably connected to the interior of the support plate. By setting the guide rods, stable guidance is provided for the lifting and lowering of the support plate, ensuring that the support plate will not deviate or shake during the lifting and lowering process, thereby ensuring the accuracy of the lifting and lowering of the wall scraping anchor and shearing propeller.

[0020] Furthermore, the water and fertilizer conveying switching unit includes a discharge pipe, the interior of which is fixedly connected to the interior of the water and fertilizer tank, the interior of which is fixedly connected to the interior of the fertilizer conveying pipe, and three return pipes fixedly connected to the interior of the discharge pipe, each of which is fixedly connected to an inlet pipe.

[0021] Each return pipe has a feeding blade rotatably connected to its inner wall, and a discharge blade is rotatably connected to its inner wall. A dual-shaft independent motor is fixedly installed on the left side of the discharge pipe. One output end of the dual-shaft independent motor is fixedly connected to the left end of the discharge blade, and a single groove wheel is fixedly installed on the other output end of the dual-shaft independent motor. A double groove wheel is fixedly installed on the outer surface of each feeding blade, and a long belt is connected between the two double groove wheels for transmission.

[0022] The outer surface of the single grooved wheel is connected to a short belt, which is connected to one of the double grooved wheels.

[0023] The discharge pipe has a discharge plug that slides inside. A hydraulic rod is fixedly installed on the bottom surface of the discharge plug. The bottom surface of the hydraulic rod is fixedly connected to the upper surface of the support base. The telescopic end of the hydraulic rod is slidably connected to the inside of the discharge pipe.

[0024] Furthermore, a feeding trough plate is fixedly installed on the inner wall of the water and fertilizer tank;

[0025] Two fixing plates are fixedly installed on the outer surface of each return pipe, and each fixing plate is fixedly installed on the outer surface of the water and fertilizer tank;

[0026] The top of the return pipe corresponds to the inlet of the feeding trough plate.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] This invention features a stirring paddle switching unit. By raising and lowering the wall-scraping anchor paddle and the shearing paddle, the stirring mode can be automatically switched according to different water and fertilizer types. This achieves the uniform mixing requirements of special fertilizers such as suspended fertilizers and high-viscosity fertilizers. The wall-scraping anchor paddle effectively removes the adhesion of high-viscosity fertilizers from the inner wall of the tank, while the shearing paddle ensures that the suspended fertilizers are uniformly suspended, adapting to the stirring treatment of suspended fertilizers or high-viscosity fertilizers and facilitating uniform mixing. Furthermore, the invention includes a water and fertilizer conveying switching unit. When processing suspended fertilizers, a short belt drive prioritizes feeding through a single return pipe, drawing water and fertilizer from the bottom of the tank to the top for spraying, forming a circulation and preventing the sedimentation of suspended fertilizer particles. When processing high-viscosity fertilizers, the rotating conveying of the discharge blades ensures smooth flow of the high-viscosity fertilizer within the pipeline, preventing blockages caused by excessive viscosity. This switching of conveying modes improves the efficiency of water and fertilizer stirring treatment. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0030] Figure 1 This is a schematic diagram of the overall structure of the integrated water and fertilizer irrigation and fertilization device for greenhouses according to the present invention.

[0031] Figure 2 This is a cross-sectional view of the water and fertilizer tank of the present invention;

[0032] Figure 3 This is a cross-sectional view of the rotating plate of the present invention;

[0033] Figure 4 This is a schematic diagram of the shearing paddle of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the ring plate of the present invention;

[0035] Figure 6 This is a schematic diagram of the guide rod of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the return pipe of the present invention;

[0037] Figure 8 This is a cross-sectional view of the discharge pipe of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure of the long strip of the present invention.

[0039] The above figures include the following reference numerals:

[0040] 1. Main structure; 11. Water and fertilizer tank; 12. Supporting base; 13. Fertilizer delivery pipe;

[0041] 2. Water and fertilizer mixing and switching mechanism;

[0042] 21. Agitator switching unit; 2101. Drive motor; 2102. Feeding trough plate; 2103. Rotating plate; 2104. Wall scraping anchor; 2105. Sealing shell; 2106. Ring plate; 2107. Splined shaft; 2108. Rotating shaft; 2109. First key shell; 2110. Bottom beam; 2111. Linkage gear; 2112. Synchronous belt; 2113. Auxiliary impeller; 2114. Synchronous pulley; 2115. Second key shell; 2116. Bracket; 2117. Groove structure; 2118. Outer ring groove; 2119. Lead screw nut; 2120. Support plate; 2121. Ball screw; 2122. Guide rod; 2123. Dual-shaft motor; 2124. Extension support plate;

[0043] 22. Water and fertilizer conveying switching unit; 2201. Discharge pipe; 2202. Return pipe; 2203. Fixing plate; 2204. Feed pipe; 2205. Feeding blade; 2206. Discharge blade; 2207. Discharge plug; 2208. Hydraulic rod; 2209. Long belt; 2210. Dual-shaft independent motor; 2211. Short belt; 2212. Double grooved pulley; 2213. Single grooved pulley. Detailed Implementation

[0044] 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.

[0045] Please see Figures 1-6 In one embodiment of the present invention, a greenhouse water and fertilizer integrated irrigation and fertilization device is provided, including a main body 1, the main body 1 including a water and fertilizer tank 11, the water and fertilizer tank 11 being fixedly installed on a support base 12 by means of support legs;

[0046] The main body 1 also includes a fertilizer conveying pipe 13, which is connected to the water and fertilizer tank 11 via a pipeline to convey and discharge the water and fertilizer in the water and fertilizer tank 11 to achieve fertilization.

[0047] Furthermore, in order to adapt to different needs of water and fertilizer mixing, the water and fertilizer tank 11 provided in this embodiment is provided with a water and fertilizer mixing and switching mechanism 2 inside;

[0048] In one implementation, the water-fertilizer mixing and switching mechanism 2 provided in this embodiment includes a mixing blade switching unit 21. The mixing blade switching unit 21 is located inside the water-fertilizer tank 11. The mixing blade switching unit 21 is used to switch different mixing modes to adapt to different needs of water-fertilizer mixing. The mixing blade can be automatically switched according to the type of water-fertilizer.

[0049] Preferably, the stirring paddle switching unit 21 provided in this embodiment includes a splined shaft 2107, the end of which is coaxially connected to the output shaft of the drive motor 2101, so that the drive motor 2101 can drive the splined shaft 2107 to rotate.

[0050] like Figure 2 and Figure 3 As shown, in this embodiment, two first key shells 2109 are slidably connected to the outer surface of the spline shaft 2107. A bottom beam 2110 is fixedly installed on one of the first key shells 2109. Three bottom beams 2110 are arranged in a circumferential array and connected to the circumference of the corresponding first key shells 2109. A wall scraping anchor 2104 is fixedly connected to the end of each of the three bottom beams 2110. A rotating plate 2103 is fixedly installed on the top of the wall scraping anchor 2104. The rotating plate 2103 is located above the bottom beam 2110.

[0051] The outer ring of the other first key shell 2109 is coaxially fixedly mounted on the rotating plate 2103;

[0052] When the key teeth of the spline shaft 2107 are inserted into any of the first key housings 2109, the rotation of the spline shaft 2107 can drive the rotating plate 2103, the bottom beam 2110, and the wall scraping anchor 2104 to move synchronously.

[0053] Please continue to refer to Figures 1-4 In this embodiment of the invention, a second key shell 2115 is slidably connected to the spline shaft 2107. A bracket 2116 is fixedly installed on the outer surface of the second key shell 2115. A groove structure 2117 for fixing and installing a shearing paddle is fixedly installed on the bottom surface of the bracket 2116. Those skilled in the art can select a shearing paddle of appropriate size or structure as needed and install the shearing paddle on the groove structure 2117 to improve the mixing effect.

[0054] Among them, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, in this embodiment of the invention, three sealing shells 2105 are fixedly installed on the inner wall of the water and fertilizer tank 11. A dual-axis motor 2123 is fixedly installed on the inner wall of each sealing shell 2105. Two ball screws 2121 are rotatably connected to the inner wall of each sealing shell 2105. A screw nut 2119 is threadedly connected to the outer surface of each ball screw 2121. A support plate 2120 is fixedly installed on the outer surface of each screw nut 2119.

[0055] Furthermore, each dual-axis motor 2123 and ball screw 2121 are coaxially fixedly mounted with a synchronous pulley 2114, and a synchronous belt 2112 is connected between the two synchronous pulleys 2114 for transmission. The synchronous belt 2112 enables the dual-axis motor 2123 to synchronously drive the two ball screws 2121 to rotate, so that the screw nut 2119 moves along the axial direction of the ball screw 2121, thereby adjusting the lifting and lowering of the wall scraping anchor 2104 to adapt to different water and fertilizer liquid levels, and ensuring that the deposits on the inner wall of the tank are effectively scraped off during the stirring process.

[0056] Furthermore, in this embodiment of the invention, the water and fertilizer tank 11 is provided with two ring plates 2106 inside, one of which has its outer surface slidably connected to the bottom of the wall scraping anchor 2104, and the other ring plate 2106 has its interior slidably connected to the outer surface of the support 2116.

[0057] like Figure 5 As shown, an extension support plate 2124 is fixedly installed on one side of the bottom beam 2110. A rotating shaft 2108 is rotatably connected to the extension support plate 2124. An auxiliary propeller 2113 is fixedly installed on the rotating shaft 2108. A linkage gear 2111 is rotatably arranged on the extension support plate 2124. The linkage gear 2111 meshes with the inner ring tooth surface of one of the ring plates 2106. Since the ring plate 2106 can only be raised and lowered without rotating, when the bottom beam 2110 moves, it drives the linkage gear 2111 to move relative to the ring plate 2106, which can make the linkage gear 2111 rotate.

[0058] Furthermore, the linkage gear 2111 and the rotating shaft 2108 are connected by a pulley and a transmission belt. That is, when the linkage gear 2111 rotates, it drives the rotating shaft 2108 to rotate, so as to improve the water and fertilizer mixing effect by using the auxiliary propeller 2113.

[0059] In addition, in this embodiment, the axis of the rotating shaft 2108 is parallel to the axis of the spline shaft 2107.

[0060] In this embodiment, the auxiliary propeller 2113 is located below the rotating plate 2103, and the auxiliary propeller 2113 is located within the area enclosed by the three sets of wall-scraping anchor propellers 2104.

[0061] Please see Figure 5 Each ring plate 2106 has an outer ring groove 2118 on its outer surface, and the ring plate 2106 is slidably connected to the bottom beam 2110 of the wall scraping anchor 2104 through the outer ring groove 2118.

[0062] In summary, this embodiment, by incorporating a stirring paddle switching unit 21, can automatically switch stirring modes according to different water and fertilizer types through the lifting and lowering operations of the wall scraping anchor paddle 2104 and the shearing paddle, thereby achieving the uniform mixing requirements for special fertilizers such as suspended fertilizers and high-viscosity fertilizers. Furthermore, the wall scraping anchor paddle 2104 effectively removes the adhesion of high-viscosity fertilizers from the inner wall of the tank, while the shearing paddle ensures that the suspended fertilizers are uniformly suspended, adapting to the stirring treatment of suspended fertilizers or high-viscosity fertilizers, which is beneficial for the uniform mixing of the two types of fertilizers.

[0063] Please see Figure 6 Each sealing shell 2105 has a guide rod 2122 fixedly installed on its upper and lower surfaces. The outer surface of each guide rod 2122 is slidably connected to the inside of the support plate 2120. By setting the guide rod 2122, a stable guide is provided for the lifting and lowering of the support plate 2120, ensuring that the support plate 2120 will not deviate or shake during the lifting and lowering process, thereby ensuring the accuracy of the lifting and lowering of the wall scraping anchor 2104 and the shearing shovel.

[0064] For further details, please refer to Figure 2 In this embodiment, a feeding trough plate 2102 is fixedly installed on the inner wall of the water and fertilizer tank 11. The output end of the drive motor 2101 is rotatably connected to the inner wall of the feeding trough plate 2102. By setting the feeding trough plate 2102, a stable support space is provided for the output end of the drive motor 2101, ensuring that the drive motor 2101 will not deviate or be damaged due to uneven force during operation. At the same time, the feeding trough plate 2102 can also play a certain protective role for the drive motor 2101.

[0065] When using the water-fertilizer tank 11 to mix different fertilizers, the dual-shaft motor 2123 is activated according to the fertilizer type. The forward and reverse rotation of the dual-shaft motor 2123 adjusts the height of the shearing paddle and the wall-scraping anchor paddle 2104 within the water-fertilizer tank 11. When processing suspended fertilizer, the dual-shaft motor 2123 drives the ball screw 2121 to rotate. Through the transmission of the synchronous belt 2112 and the synchronous pulley 2114, the screw nut 2119 drives the support plate 2120 to rise, which in turn raises the second key shell 2115 and the bracket 2116. The second key shell 2115 moves onto the key of the spline shaft 2107, raising the shearing paddle to the appropriate position. Then, the drive motor 2101 is activated, driving the spline shaft 2107 to rotate. At this time, the shearing paddle stirs the suspended fertilizer to ensure its uniform suspension. The wall scraping anchor paddle 2104 is raised to the smooth section of the spline shaft 2107. When the spline shaft 2107 rotates, it will not drive the wall scraping anchor paddle 2104 to rotate, thus avoiding interference with the stirring of the suspended fertilizer. When processing high-viscosity fertilizer, the dual-shaft motor 2123 rotates in the opposite direction, causing the support plate 2120 to descend, which in turn drives the shearing paddle to descend. At the same time, the first key shell 2109 drives the wall scraping anchor paddle 2104 to descend to the appropriate position. During the rotation, the wall scraping anchor paddle 2104 effectively removes the adhesion of high-viscosity fertilizer on the inner wall of the tank, preventing the fertilizer from accumulating on the inner wall of the tank. In addition, the rotation of the auxiliary paddle 2113 assists the wall scraping anchor paddle 2104 in stirring the high-viscosity fertilizer, making it more uniformly mixed.

[0066] Please see Figure 1 and Figures 7-9 In another embodiment of this application, the present invention makes corresponding improvements to the technical problems mentioned in the background art. In the integrated water and fertilizer irrigation and fertilization device for greenhouses provided in this embodiment, the water and fertilizer stirring and switching mechanism 2 further includes a water and fertilizer conveying and switching unit 22. The water and fertilizer conveying and switching unit 22 is located outside the water and fertilizer tank 11. The water and fertilizer conveying and switching unit 22 is used to convey water and fertilizer according to different water and fertilizer types and stirring paddles, and adapt to different stirring paddles for water and fertilizer stirring.

[0067] Specifically, in this embodiment, the water and fertilizer conveying switching unit 22 includes a discharge pipe 2201, the interior of the discharge pipe 2201 is fixedly connected to the interior of the water and fertilizer tank 11, the interior of the discharge pipe 2201 is fixedly connected to the interior of the fertilizer conveying pipe 13, and the interior of the discharge pipe 2201 is fixedly connected to three return pipes 2202, and the interior of each return pipe 2202 is fixedly connected to an inlet pipe 2204;

[0068] Each return pipe 2202 has a feeding blade 2205 rotatably connected to its inner wall, and a discharge blade 2206 rotatably connected to its inner wall. A dual-shaft independent motor 2210 is fixedly installed on the left side of the discharge pipe 2201. One output end of the dual-shaft independent motor 2210 is fixedly connected to the left end of the discharge blade 2206, and a single grooved wheel 2213 is fixedly installed on the other output end of the dual-shaft independent motor 2210. A double grooved wheel 2212 is fixedly installed on the outer surface of each feeding blade 2205, and a long belt 2209 is connected between the two double grooved wheels 2212. The two output shafts of the dual-shaft independent motor 2210 are independent of each other. For those skilled in the art, the dual-shaft independent motor 2210 can refer to two independent motor modules, which are used to drive the discharge blade 2206 and the single grooved wheel 2213 to perform independent actions, respectively.

[0069] A short belt 2211 is connected to the outer surface of the single grooved wheel 2213 for transmission, and the short belt 2211 is connected to one of the double grooved wheels 2212 for transmission.

[0070] The discharge pipe 2201 is internally slidably connected to a discharge plug 2207. A hydraulic rod 2208 is fixedly installed on the bottom surface of the discharge plug 2207. The bottom surface of the hydraulic rod 2208 is fixedly connected to the upper surface of the support base 12. The telescopic end of the hydraulic rod 2208 is slidably connected to the inside of the discharge pipe 2201.

[0071] This embodiment of the invention includes a water-fertilizer conveying switching unit 22. When processing suspended fertilizer, the short belt 2211 drives the single return pipe 2202 to feed the fertilizer first. The water and fertilizer at the bottom of the tank are pumped to the top for spraying through the return pipe 2202, forming a circulation and preventing the suspended fertilizer particles from settling. When processing high-viscosity fertilizer, the rotating conveying of the discharge blades 2206 ensures that the high-viscosity fertilizer flows smoothly in the pipeline, preventing blockage caused by excessive viscosity. This switching of conveying modes improves the efficiency of water-fertilizer mixing and processing.

[0072] Please see Figure 7 Two fixing plates 2203 are fixedly installed on the outer surface of each return pipe 2202. Each fixing plate 2203 is fixedly installed on the outer surface of the water and fertilizer tank 11. By setting the fixing plates 2203, the return pipe 2202 is firmly fixed on the water and fertilizer tank 11, ensuring the stability and reliability of the entire water and fertilizer conveying switching unit 22 during operation, and avoiding the impact on the water and fertilizer conveying effect due to the shaking or displacement of the return pipe 2202.

[0073] In this embodiment of the invention, shearing paddles and wall-scraping anchor paddles 2104 are used to treat suspended fertilizer or high-viscosity fertilizer. When treating suspended fertilizer, the position of the discharge plug 2207 is controlled by the hydraulic rod 2208, and the discharge blades 2206 block the fertilizer at the upper end of the discharge pipe 2201, so that the discharged fertilizer is input into the return pipe 2202. The dual-shaft independent motor 2210 is started, driving the single grooved wheel 2213 to rotate. The single grooved wheel 2213 drives the double grooved wheel 2212 through the short belt 2211. The rotation causes the feeding blades 2205 corresponding to the double grooved wheel 2212 to rotate, and the return pipe 2202 prioritizes feeding. The return pipe 2202 draws the water and fertilizer from the bottom of the tank to the top for spraying, forming a circulation and effectively preventing the sedimentation of suspended fertilizer particles. When high-viscosity fertilizer needs to be processed, the dual-shaft independent motor 2210 drives the discharge blades 2206 to rotate and transport quickly, ensuring that the high-viscosity fertilizer flows smoothly in the pipeline and preventing blockage caused by excessive viscosity. Both suspended fertilizer and high-viscosity fertilizer are fed into the fertilizer delivery pipe 13 for fertilization.

[0074] 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 greenhouse water and fertilizer integrated irrigation and fertilization device, characterized in that, include: The main structure (1) includes a water and fertilizer tank (11) and a fertilizer conveying pipe (13). The fertilizer conveying pipe (13) is connected to the water and fertilizer tank (11) by a pipeline and is used to transport and discharge the water and fertilizer in the water and fertilizer tank (11). A water and fertilizer mixing switching mechanism (2) is installed inside the water and fertilizer tank (11). The water and fertilizer mixing switching mechanism (2) includes a stirring paddle switching unit (21). The stirring paddle switching unit (21) is located inside the water and fertilizer tank (11). The stirring paddle switching unit (21) is used to switch different mixing modes based on different water and fertilizer mixing needs. The water and fertilizer mixing switching mechanism (2) also includes a water and fertilizer conveying switching unit (22). The water and fertilizer conveying switching unit (22) is located outside the water and fertilizer tank (11). The water and fertilizer conveying switching unit (22) is used to convey water and fertilizer according to different water and fertilizer types and stirring paddles. The stirring paddle switching unit (21) includes: Spline shaft (2107), two first key shells (2109) are slidably connected to the outer surface of the spline shaft (2107), a bottom beam (2110) is fixedly installed on one of the first key shells (2109), and a wall scraping anchor (2104) is fixedly connected to the end of the bottom beam (2110). A rotating plate (2103) is fixedly installed on the top of the wall scraping anchor (2104), and the rotating plate (2103) is located above the bottom beam (2110). The outer ring of another first key shell (2109) is coaxially fixed on the rotating plate (2103); A second key shell (2115) is also slidably connected to the spline shaft (2107). A bracket (2116) is fixedly installed on the outer surface of the second key shell (2115), and a shearing paddle is fixedly installed on the bottom surface of the bracket (2116). The inner wall of the water and fertilizer tank (11) is fixedly installed with three sealing shells (2105). Each sealing shell (2105) is fixedly installed with a dual-shaft motor (2123). Each sealing shell (2105) is rotatably connected with two ball screws (2121). Each ball screw (2121) is threaded with a screw nut (2119) on its outer surface. Each screw nut (2119) is fixedly installed with a support plate (2120) on its outer surface. The water and fertilizer tank (11) is equipped with two ring plates (2106) inside. The outer surface of one ring plate (2106) is slidably connected to the bottom of the wall scraping anchor (2104), and the interior of the other ring plate (2106) is slidably connected to the outer surface of the bracket (2116). An extension support plate (2124) is fixedly installed on one side of the bottom beam (2110). A rotating shaft (2108) is rotatably connected to the extension support plate (2124). An auxiliary propeller (2113) is fixedly installed on the rotating shaft (2108). A linkage gear (2111) is rotatably installed on the extension support plate (2124). The linkage gear (2111) meshes with the inner ring tooth surface of one of the ring plates (2106). The linkage gear (2111) and the rotating shaft (2108) are connected by a pulley and a transmission belt.

2. The integrated water and fertilizer irrigation and fertilization device for greenhouses according to claim 1, characterized in that: Each ring plate (2106) has an outer ring groove (2118) on its outer surface. The ring plate (2106) is slidably connected to the bottom beam (2110) of the wall scraping anchor (2104) through the outer ring groove (2118).

3. The integrated water and fertilizer irrigation and fertilization device for greenhouses according to claim 2, characterized in that: Each sealing shell (2105) has a guide rod (2122) fixedly installed on its upper and lower surfaces, and the outer surface of each guide rod (2122) is slidably connected to the interior of the support plate (2120).

4. The integrated water and fertilizer irrigation and fertilization device for greenhouses according to claim 2 or 3, characterized in that: The water and fertilizer conveying switching unit (22) includes a discharge pipe (2201), the interior of the discharge pipe (2201) is fixedly connected to the interior of the water and fertilizer tank (11), the interior of the discharge pipe (2201) is fixedly connected to the interior of the fertilizer conveying pipe (13), and the interior of the discharge pipe (2201) is fixedly connected to three return pipes (2202), and the interior of each return pipe (2202) is fixedly connected to an inlet pipe (2204). Each return pipe (2202) has a feeding blade (2205) rotatably connected to its inner wall, and a discharge blade (2206) rotatably connected to its inner wall. A dual-shaft independent motor (2210) is fixedly installed on the left side of the discharge pipe (2201). One output end of the dual-shaft independent motor (2210) is fixedly connected to the left end of the discharge blade (2206), and a single grooved wheel (2213) is fixedly installed on the other output end of the dual-shaft independent motor (2210). A double grooved wheel (2212) is fixedly installed on the outer surface of each feeding blade (2205), and a long belt (2209) is connected between the two double grooved wheels (2212). The outer surface of the single grooved pulley (2213) is connected to a short belt (2211), which is connected to one of the double grooved pulleys (2212). The discharge pipe (2201) has a discharge plug (2207) slidably connected inside. A hydraulic rod (2208) is fixedly installed on the bottom surface of the discharge plug (2207). The bottom surface of the hydraulic rod (2208) is fixedly connected to the upper surface of the support base (12). The telescopic end of the hydraulic rod (2208) is slidably connected to the inside of the discharge pipe (2201).

5. The integrated water and fertilizer irrigation and fertilization device for greenhouses according to claim 4, characterized in that: The inner wall of the water and fertilizer tank (11) is fixedly installed with a feeding trough plate (2102). Two fixing plates (2203) are fixedly installed on the outer surface of each return pipe (2202), and each fixing plate (2203) is fixedly installed on the outer surface of the water and fertilizer tank (11); The top of the return pipe (2202) corresponds to the inlet of the feed trough plate (2102).

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