Integrated liquid fertilizer dispenser

Abstract

This invention provides an integrated water-fertilizer and chemical device that improves the mixing accuracy of fertilizers / chemicals and water, and also prevents clogging of the filtration component, thereby facilitating maintenance work. [Solution] This is an integrated water fertilizer device, in which a supply unit and a water supply unit are arranged on the upper surface of the bottom plate, and a discharge valve 12 is arranged through the inside of the filtration tank 10 and the filter cylinder 25. A protective case 18 is fixed to the upper surface of the filtration tank, an L-shaped bracket 13 is fixed to the upper surface of the protective case, an electric motor 14 is fixed to the inside of the L-shaped bracket, a connecting shaft 15 is fixed to the output end of the electric motor, a first gear 16 that meshes with a second gear 17 is fixed to the outer circumference of the connecting shaft, a connecting plate and a pressing rod are fixed to the outer circumference of a rotating shaft 19 fixed to the second gear, a scraper is slidably attached to the inside of the connecting plate, and a first spring is provided on the outer circumference of the pressing rod.

Description

Technical Field

[0001] The present invention belongs to the field of agricultural engineering technology, and particularly relates to a water, fertilizer and pesticide integrated device that integrally performs irrigation, fertilization and pesticide spraying.

Background Art

[0002] Water, fertilizer and pesticide is a general term including water used for crop irrigation, fertilizer used for fertilization, and pesticides used for pest control in agricultural production. In order to meet the different nutrient supply and pest control requirements at each growth stage of crops, while achieving water conservation, fertilizer conservation, pesticide conservation, quality improvement and production efficiency improvement, and adapting to large-scale and modern agriculture, a device capable of accurately mixing and supplying water, fertilizer and pesticides is required. In conventional water, fertilizer and pesticide integrated devices, the mixing ratio depends on the operator's experience, and mixing errors are likely to occur, which may cause pesticide damage, fertilizer damage to crops, or a decrease in pesticide efficacy. In addition, since the filter member is not equipped with an automatic cleaning mechanism, clogging due to the accumulation of foreign substances is likely to occur, and frequent manual cleaning is required, resulting in a decrease in work efficiency and an increase in maintenance costs. From these points, the conventional devices did not fully meet the requirements of large-scale and high-efficiency agricultural production.

Summary of the Invention

[0003] In view of the above problems of the prior art, an object of the present invention is to provide a water, fertilizer and pesticide integrated device that can be accurately controlled without depending on manual operation for the mixing ratio, and that prevents clogging of the filter part and facilitates maintenance work.

[0004] To achieve the above objective, the present invention employs the following technical configuration. Specifically, the present invention is a water fertilizer integrated device, comprising a bottom plate. A supply unit and a water supply unit are arranged on the upper surface of the bottom plate, and a filtration tank is fixedly provided thereon. A second supply pipe is fixedly provided inside the filtration tank, a mounting plate is fixed to the inner wall of the filtration tank, and a filter cylinder is fixed to the inside of the mounting plate. A discharge valve is arranged passing through the inside of the filtration tank and the filter cylinder. A protective case is fixed to the upper surface of the filtration tank, and an L-shaped bracket is fixed to the upper surface of the protective case. An electric motor is fixed inside the L-shaped bracket, and a connecting shaft is fixed to the output end of the electric motor. A first gear is fixed to the outer circumference of the connecting shaft, and the first gear meshes with a second gear. A rotating shaft is fixed inside the second gear, and a connecting plate and a pressing rod are fixed to the outer circumference of the rotating shaft, respectively. A scraper is slidably mounted on the inside of the connecting plate, and a first spring is provided on the outer circumference of the pressing rod. Preferably, the supply unit comprises a metering pump and a fertilizer / chemical storage tank. Both the metering pump and the fertilizer / chemical storage tank are fixed to the upper surface of the bottom plate. A first supply pipe is fixed to the suction side of the metering pump, and the first supply pipe extends into the fertilizer / chemical storage tank. A discharge pipe is fixed to the discharge side of the metering pump, and the discharge pipe communicates with the inside of a second supply pipe. Preferably, the water supply unit comprises a water pump and a water storage tank. Both the water pump and the water storage tank are fixed to the upper surface of the bottom plate. A water supply pipe is fixed to the suction side of the water pump, and the water supply pipe extends into the inside of the water storage tank. A drain pipe is fixed to the discharge side of the water pump, and the drain pipe communicates with the inside of the second supply pipe. Preferably, the second supply pipe is fixed inside the filtration tank. The connecting shaft is rotatably supported inside the protective case, and the rotating shaft is rotatably supported inside the filtration tank. The scraper is slidably positioned along the inner wall of the filter cylinder, and one end of the first spring is fixed to the scraper and the other end to the rotating shaft. Preferably, a discharge pipe is fixed inside the filtration tank, and a T-shaped cylindrical body is fixed inside the discharge pipe. An injection nozzle is slidably mounted on the inner wall of the T-shaped cylindrical body, and an engagement groove is formed on the outer circumference of the injection nozzle. A guide cylinder is fixed inside the T-shaped cylindrical body, and a hemispherical block is slidably arranged inside the guide cylinder. Preferably, the hemispherical block is positioned such that its outer circumferential surface slidably contacts the outer circumferential surface of the injection nozzle and is slidably engaged with the inner circumferential surface of the engagement groove. A second spring is positioned inside the guide cylinder, with one end of the second spring fixed to the inner wall of the guide cylinder and the other end fixed to the hemispherical block.

[0005] This invention has the following beneficial effects. 1. By operating the metering pump and water pump, fertilizer / chemicals and water can be mixed in a predetermined ratio. The mixture is introduced into a filtration tank and, after filtration, is sprayed through a discharge pipe and spray nozzle. If the filtration section becomes clogged, a scraper driven by an electric motor cleans the inner wall of the filter cylinder, and foreign matter can be discharged through the discharge valve. This improves the mixing accuracy of fertilizer / chemicals and water, prevents clogging of the filtration components, improves the efficiency of irrigation, fertilization, and chemical spraying operations, and reduces the maintenance costs of the equipment. 2. In the nozzle mounting structure, the T-shaped cylinder, guide cylinder, second spring, hemispherical block, and engagement groove work together to enable quick attachment and detachment of the nozzle, allowing for easy nozzle replacement according to crop type and field conditions. As a result, work efficiency is improved, workload is reduced, and labor costs are lowered. [Brief explanation of the drawing]

[0006] [Figure 1] Figure 1 is a three-dimensional view of the integrated liquid fertilizer device according to the present invention. [Figure 2] Figure 2 is a localized diagram of the filter cylinder of the integrated water fertilizer device according to the present invention. [Figure 3]Figure 3 is a localized diagram of the pressing rod of the integrated liquid fertilizer device according to the present invention. [Figure 4] Figure 4 is a localized diagram of the engagement groove of the integrated liquid fertilizer device according to the present invention. [Figure 5] Figure 5 is a schematic diagram of the guide cylinder of the integrated liquid fertilizer device according to the present invention. [Modes for carrying out the invention]

[0007] Embodiments of the present invention will be described below with reference to the drawings. The embodiments shown below are examples of the present invention, and the present invention is not limited thereto. All other embodiments obtained by those skilled in the art without creative ingenuity based on the embodiments of the present invention fall within the scope of the present invention.

[0008] As shown in Figures 1, 2, and 3, the integrated water fertilizer device according to this embodiment includes a bottom plate 1. A supply unit and a water supply unit are arranged on the upper surface of the bottom plate 1, and a filtration tank 10 is fixedly mounted thereon. A second supply pipe 11 is fixedly mounted inside the filtration tank 10, a mounting plate 24 is fixed to the inner wall of the filtration tank 10, and a filter cylinder 25 is fixed inside the mounting plate 24. A discharge valve 12 is positioned to pass through the inside of the filtration tank 10 and the filter cylinder 25. A protective case 18 is fixed to the upper surface of the filtration tank 10, and an L-shaped bracket 13 is fixed to the upper surface of the protective case 18. An electric motor 14 is fixed inside the L-shaped bracket 13, and a connecting shaft 15 is fixed to the output end of the electric motor 14. A first gear 16 is fixed to the outer circumference of the connecting shaft 15, and the first gear 16 meshes with a second gear 17. A rotating shaft 19 is fixed inside the second gear 17, and a connecting plate 20 and a pressing rod 22 are fixed to the outer circumference of the rotating shaft 19, respectively. A scraper 21 is slidably mounted inside the connecting plate 20, and a first spring 23 is provided on the outer circumference of the pressing rod 22. Specifically, the filtration tank 10 is a container for filtration, and the filter cylinder 25 is stably supported by the mounting plate 24. The filter cylinder 25 captures residues and sediment contained in the mixed liquid, preventing foreign matter from entering the discharge pipe 27 and spray nozzle 29, and ensuring smooth spraying operation. The protective case 18 provided on top of the filtration tank 10 protects the transmission members, such as the first gear 16 and the second gear 17, from the external environment. The L-shaped bracket 13 stably supports the electric motor 14, and the electric motor 14 drives the gear train via the connecting shaft 15, causing the scraper 21 to move along the inner wall of the filter cylinder 25 to remove attached foreign matter. The device is equipped with a control system including a PLC control device, a liquid level sensor, and an electrical conductivity sensor, which monitors and controls the operating state. Furthermore, the main components of the device are made of stainless steel, which has excellent corrosion resistance, and it has excellent rust prevention and environmental resistance, making it suitable for outdoor agricultural environments.

[0009] As shown in Figure 1, the supply unit comprises a metering pump 2 and a fertilizer / chemical storage tank 3. Both the metering pump 2 and the fertilizer / chemical storage tank 3 are fixed to the upper surface of the bottom plate 1. A first supply pipe 4 is fixed to the suction side of the metering pump 2, and the first supply pipe 4 extends into the interior of the fertilizer / chemical storage tank 3. A discharge pipe 5 is fixed to the discharge side of the metering pump 2, and the discharge pipe 5 communicates with the interior of the second supply pipe 11. Specifically, the bottom plate 1 functions as a base to support the main components such as the supply unit, water supply unit, and filtration tank 10, ensuring the structural stability of the entire device. Fertilizer and pesticides are stored in the fertilizer and pesticide storage tank 3, and the metering pump 2 draws the fertilizer and pesticides through the first supply pipe 4 and supplies them to the second supply pipe 11 through the discharge pipe 5. As shown in Figure 1, the water supply unit comprises a water pump 6 and a water storage tank 7. Both the water pump 6 and the water storage tank 7 are fixed to the upper surface of the bottom plate 1. A water supply pipe 8 is fixed to the suction side of the water pump 6, and the water supply pipe 8 extends into the inside of the water storage tank 7. A drain pipe 9 is fixed to the discharge side of the water pump 6, and the drain pipe 9 communicates with the inside of the second supply pipe 11. Specifically, fresh water is stored in the water storage tank 7, and the water pump 6 draws the fresh water through the water supply pipe 8 and supplies it to the second supply pipe 11 through the drain pipe 9. By combining this with the control of the supply amount of fertilizer and chemicals by the metering pump 2, water and fertilizer / chemicals can be mixed in a predetermined ratio, preventing crop damage and reduced efficacy due to improper mixing, and enabling fertilization and pest control according to the growth stage of the crop.

[0010] As shown in Figures 1, 2, and 3, the second supply pipe 11 is fixed inside the filtration tank 10. The connecting shaft 15 is rotatably supported inside the protective case 18, and the rotating shaft 19 is rotatably supported inside the filtration tank 10. The scraper 21 is slidably positioned along the inner wall of the filter cylinder 25, and one end of the first spring 23 is fixed to the scraper 21, and the other end is fixed to the rotating shaft 19. Specifically, a connecting plate 20 fixed to the rotating shaft 19 supports the sliding motion of the scraper 21, and the scraper 21 is constantly pressed against the inner wall of the filter cylinder 25 by the cooperation of the first spring 23 and the pressing rod 22. This allows foreign matter adhering to the inner wall of the filter cylinder 25 to be efficiently scraped off, and by opening the discharge valve 12, the captured foreign matter can be quickly discharged. This configuration prevents clogging of the filter cylinder 25, maintains filtration performance, and reduces the frequency of cleaning work.

[0011] As shown in Figures 1, 4, and 5, a discharge pipe 27 is fixed inside the filtration tank 10, and a T-shaped cylindrical body 28 is fixed inside the discharge pipe 27. An injection nozzle 29 is slidably mounted on the inner wall of the T-shaped cylindrical body 28, and an engagement groove 30 is formed on the outer circumference of the injection nozzle 29. A guide cylinder 31 is fixed inside the T-shaped cylindrical body 28, and a hemispherical block 32 is slidably arranged inside the guide cylinder 31. Specifically, the discharge pipe 27 fixed to the filtration tank 10 functions as a passage to guide the filtered water, fertilizer, and chemical mixture to the T-shaped cylindrical body 28, forming a stable spray flow path. The T-shaped cylindrical body 28 functions as a mounting base for the spray nozzle 29, and a guide structure formed on its inner wall restricts the insertion and removal direction of the spray nozzle 29, preventing misalignment and improving assembly accuracy. Furthermore, a sealing ring is interposed at the connection between the T-shaped cylindrical body 28 and the spray nozzle 29, improving the airtightness and liquid tightness of the connection. As shown in Figures 1, 4, and 5, the hemispherical block 32 is positioned so that its outer circumferential surface slidably contacts the outer circumferential surface of the injection nozzle 29, and also slidably engages with the inner circumferential surface of the engagement groove 30. A second spring 26 is positioned inside the guide cylinder 31, with one end of the second spring 26 fixed to the inner wall of the guide cylinder 31 and the other end fixed to the hemispherical block 32. Specifically, the guide cylinder 31, located inside the T-shaped cylindrical body 28, forms a stable mounting space for housing the hemispherical block 32 and the second spring 26, and also serves to restrict the direction of movement of the hemispherical block 32. As a result, the hemispherical block 32 is guided to slide linearly along the inner wall of the guide cylinder 31, suppressing malfunctions due to misalignment or jamming of the engagement mechanism and ensuring stable operation of the locking mechanism. The second spring 26 stores elastic energy when compressed and presses against the hemispherical block 32 with its repulsive force when restored. This elastic action allows the hemispherical block 32 to smoothly engage with and disengage from the engagement groove 30, enabling quick attachment and detachment of the spray nozzle 29. The engagement groove 30 formed in the spray nozzle 29 is precisely formed to correspond to the shape of the hemispherical block 32, and the secure engagement between the two prevents loosening or detachment due to water pressure and vibration generated during spraying, maintaining a stable spray state during irrigation work. When replacing the spray nozzle 29, the hemispherical block 32 is pressed by the operation of pulling out the spray nozzle 29, and the engagement is released by compressing the second spring 26. When a new spray nozzle 29 is inserted, the hemispherical block 32 automatically engages with the engagement groove 30 due to the restoring force of the second spring 26, and the spray nozzle 29 is securely fixed in place.

[0012] Operating principle: When using this device, the metering pump 2 and water pump 6 are activated to mix fertilizer / chemicals and water in a predetermined ratio. The mixture is introduced into the filtration tank 10 through the second supply pipe 11, filtered by the filter cylinder 25, and then sprayed through the discharge pipe 27 and spray nozzle 29. If the filter cylinder 25 becomes clogged, the electric motor 14 is activated to rotate the connecting shaft 15 inside the protective case 18. This causes the first gear 16, the second gear 17, and the rotating shaft 19 to rotate in conjunction, and the scraper 21 slides against the inner wall of the filter cylinder 25 under the biasing force of the first spring 23, cleaning it. At the same time, the discharge valve 12 is opened to quickly discharge any captured foreign matter. When replacing the spray nozzle 29, the spray nozzle 29 can be removed by pulling it upward, causing the engagement groove 30 to push the hemispherical block 32 and compressing the second spring 26 within the guide cylinder 31. When inserting a new spray nozzle 29 into the T-shaped cylinder 28, the engagement groove 30 and the hemispherical block 32 are aligned, the hemispherical block 32 is pushed to compress the second spring 26, and the spray nozzle 29 is inserted to the predetermined position. After insertion, the second spring 26 recovers and fixes the hemispherical block 32 in the engagement groove 30, enabling quick and reliable attachment and detachment of the spray nozzle 29, and allowing for flexible response to irrigation requirements according to different crops and field conditions.

[0013] The embodiments described above are merely preferred examples of the present invention, and the present invention is not limited thereto. Those skilled in the art can make various changes, improvements, or equivalent substitutions of parts of the technical configurations described above, and all such changes are within the scope of protection of the present invention, as long as they fall within the scope of the technical concept and principles of the present invention. [Explanation of Symbols]

[0014] 1 Bottom plate 2. Metering pump 3. Fertilizer / chemical storage tank 4 1st supply pipe 5 Discharge pipe 6. Water pump 7. Water storage tank 8 Water supply pipe 9 Drain pipe 10 Filter tank 11 Second supply pipe 12 Drain valve 13 L-shaped bracket 14 Electric motor 15 Connecting shaft 16 First gear 17 Second gear 18 Protective case 19 Rotating shaft 20 Connecting plate 21 Scraper 22 Pressing rod 23 First spring 24 Mounting plate 25 Filter cylinder 26 Second spring 27 Discharge pipe 28 T-shaped cylinder 29 Injection nozzle 30 Engagement groove 31 Guide cylinder 32 Hemispherical block

Claims

1. A liquid fertilizer integrated device equipped with a bottom plate (1), A supply unit and a water supply unit are arranged on the upper surface of the bottom plate (1), A filtration tank (10) is fixedly mounted on the upper surface of the bottom plate (1). A second supply pipe (11) is fixedly installed inside the filtration tank (10). A mounting plate (24) is fixed to the inner wall of the filtration tank (10), and a filter cylinder (25) is fixed to the inside of the mounting plate (24). A discharge valve (12) is positioned to pass through the inside of the filtration tank (10) and the filter cylinder (25). A protective case (18) is fixed to the upper surface of the filtration tank (10). An L-shaped bracket (13) is fixed to the upper surface of the protective case (18). An electric motor (14) is fixed inside the L-shaped bracket (13). A connecting shaft (15) is fixed to the output end of the electric motor (14). A first gear (16) is fixed to the outer circumference of the connecting shaft (15), and the first gear (16) meshes with the second gear (17). A rotating shaft (19) is fixed inside the second gear (17). A connecting plate (20) and a pressing rod (22) are fixed to the outer circumference of the rotating shaft (19), A scraper (21) is slidably mounted on the inside of the connecting plate (20). A first spring (23) is provided on the outer circumference of the aforementioned pressing rod (22). A liquid fertilizer integrated device characterized by the following features.

2. The supply unit includes a metering pump (2) and a fertilizer / chemical storage tank (3), The aforementioned metering pump (2) and the aforementioned fertilizer / chemical storage tank (3) are both fixed to the upper surface of the bottom plate (1). A first supply pipe (4) is fixed to the suction side of the aforementioned metering pump (2). The first supply pipe (4) extends into the interior of the fertilizer / chemical storage tank (3), A discharge pipe (5) is fixed to the discharge side of the metering pump (2). The discharge pipe (5) is in communication with the inside of the second supply pipe (11). The integrated liquid fertilizer device according to claim 1, characterized in that

3. The water supply unit includes a water pump (6) and a water storage tank (7), The water pump (6) and the water storage tank (7) are both fixed to the upper surface of the bottom plate (1). A water supply pipe (8) is fixed to the suction side of the water pump (6). The water supply pipe (8) extends into the interior of the water storage tank (7), A drain pipe (9) is fixed to the discharge side of the water pump (6). The drain pipe (9) is in communication with the inside of the second supply pipe (11). The integrated liquid fertilizer device according to claim 1, characterized in that

4. The second supply pipe (11) is fixed inside the filtration tank (10), The connecting shaft (15) is rotatably supported inside the protective case (18), The rotating shaft (19) is rotatably supported inside the filtration tank (10), The scraper (21) is slidably positioned along the inner wall of the filter cylinder (25), One end of the first spring (23) is fixed to the scraper (21), and the other end is fixed to the rotating shaft (19). The integrated liquid fertilizer device according to claim 1, characterized in that

5. A discharge pipe (27) is fixed inside the filtration tank (10). A T-shaped cylindrical body (28) is fixed inside the discharge pipe (27). A spray nozzle (29) is slidably mounted on the inner wall of the T-shaped cylindrical body (28). The injection nozzle (29) has an engagement groove (30) formed therein. A guide tube (31) is fixed inside the T-shaped cylindrical body (28). A hemispherical block (32) is slidably positioned inside the guide cylinder (31). The integrated liquid fertilizer device according to claim 1, characterized in that

6. The hemispherical block (32) is positioned such that its outer circumferential surface slidably contacts the outer circumferential surface of the injection nozzle (29), and is also slidably engaged with the inner circumferential surface of the engagement groove (30). A second spring (26) is placed inside the guide cylinder (31). One end of the second spring (26) is fixed to the inner wall of the guide cylinder (31), and the other end is fixed to the hemispherical block (32). The integrated liquid fertilizer device according to claim 5, characterized in that

Images