Water and fertilizer integrated mixing and irrigation device

Abstract

The application relates to a water and fertilizer integrated mixing and irrigation device and belongs to the technical field of irrigation devices, which comprises a main body, a plurality of supporting legs fixedly connected to the bottom of the main body, a water storage cavity arranged in the inside of the main body, a water inlet pipe arranged on one side of the top of the main body and communicated with the water storage cavity, a drainage pipe arranged on the bottom of one side of the main body and communicated with the water storage cavity, a second valve body arranged on the drainage pipe, a storage cavity arranged on one side of the inside of the main body, a water conveying mechanism arranged on the top of the main body and capable of conveying water in the water storage cavity into the storage cavity. The water pump electric device can realize the mixing of the fertilizer and water and the irrigation work, the device cost is saved, the operation is simpler, the two different modes can be freely switched by controlling the opening of the spraying pipe, the complicated switching operation is not needed, the rapid mixing effect can be realized by utilizing the circulating flow of the water, and the mixing effect is good.

Description

Technical Field

[0001] This invention belongs to the technical field of irrigation devices and relates to an integrated water and fertilizer mixing irrigation device. Background Technology

[0002] Integrated water and fertilizer management technology is a modern agricultural technology that combines irrigation and fertilization. It aims to improve crop yield and quality while achieving resource conservation and environmental protection by precisely controlling the supply of water and nutrients. This technology not only significantly improves agricultural production efficiency but also effectively addresses the impact of adverse climatic conditions such as drought.

[0003] A search revealed that patent document CN 219981537 U discloses an integrated water and fertilizer mixing irrigation device, including a housing. A mixing chamber is fixedly installed inside the housing, and a connecting pipe is fixedly installed at the upper end of the right side wall of the mixing chamber. A pulverizing chamber is fixedly installed at the upper end of the connecting pipe. This device can grind fertilizer into powder using a grinding roller, facilitating rapid dissolution. This not only avoids clogging the water pump but also ensures the fertilizer dissolves completely in water, achieving the desired efficacy. However, this device requires a motor drive for pre-grinding the fertilizer and involves multiple transmission components, increasing equipment costs and failing to achieve the desired operational simplification. Furthermore, patent document CN220755524 U also discloses an integrated water and fertilizer mixing irrigation device, which similarly uses a motor drive for mixing water and fertilizer. Therefore, current irrigation devices, whether for pre-crushing or mixing, require an additional motor for driving. Furthermore, the irrigation device also requires an essential pump, resulting in too many electrical components, complicated maintenance, and the inability to use a single pump to simultaneously perform water and fertilizer mixing and irrigation. Therefore, we propose an integrated water and fertilizer mixing and irrigation device to solve the problems mentioned above. Summary of the Invention

[0004] In view of this, in order to solve the problems of traditional irrigation devices having too many electrical components, increasing equipment costs, being troublesome to maintain, and not being able to use a single pump to simultaneously achieve water and fertilizer mixing and irrigation, the present invention provides an integrated water and fertilizer mixing and irrigation device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a water and fertilizer integrated mixing and irrigation device, comprising a main body, with multiple support legs fixedly connected to the bottom of the main body, a water storage chamber inside the main body, a water inlet pipe connected to the water storage chamber on one side of the top of the main body for adding water, a drain pipe connected to the water storage chamber on one side of the bottom of the main body for draining water, a second valve body installed on the drain pipe, and further comprising:

[0006] The storage chamber is located on one side of the interior of the main body;

[0007] The water conveying mechanism, located at the top of the main body, is capable of conveying water from the water storage chamber to the material storage chamber.

[0008] The feeding pipe is fixedly installed on one side of the top of the main body and connected to the storage chamber. It is used for feeding fertilizer, and water mixes and dissolves the fertilizer after entering the storage chamber.

[0009] A spray pipe is fixedly connected to the top of one side of the main body and communicates with the storage chamber. It is used for water and fertilizer irrigation spraying. A first valve body is installed on the spray pipe.

[0010] The first piston assembly is located inside the storage chamber. When the spray pipe is closed, the first piston assembly can be automatically controlled to move under water pressure to keep the water flowing and complete the mixing and dissolution of the fertilizer. When the spray pipe is open, the mixed water and fertilizer in the storage chamber can be directly sprayed through the spray pipe by a water pump.

[0011] The flow chamber is located inside the main body and directly below the storage chamber. The top wall of the flow chamber is connected to the bottom wall of the storage chamber by a number of filter holes arranged in a ring. The flow chamber is connected to the water storage chamber by a number of water passage holes arranged in an arc.

[0012] The second piston assembly, located within the flow chamber, is used to automatically unblock the storage chamber during water circulation.

[0013] Furthermore, the water conveying mechanism includes a water pump fixedly connected to the top outer wall of the main body, a water pump inlet end fixedly connected to a water pipe extending into the water storage chamber, a water conveying pipe fixedly connected to the water outlet end of the water pump, and the other end of the water conveying pipe fixedly penetrates the top of the main body and communicates with the storage chamber.

[0014] Furthermore, the first piston assembly includes an upper piston plate that is slidably and sealed inside the storage chamber. The upper piston plate is located below the spray pipe and is slidably and sealed on the outer wall of the feeding pipe. Multiple first guide rods are fixedly connected to the top of the upper piston plate in an annular shape at equal intervals. The top ends of the multiple first guide rods are slidably and sealed through the top of the main body and extend upward. The outer walls of the multiple first guide rods are fitted with first springs. The two ends of the first springs are fixedly connected to the top ends of the first guide rods and the top outer wall of the main body, respectively.

[0015] Furthermore, each of the first guide rods has a first limiting ring fixedly fitted on its outer wall, and the top of each first limiting ring abuts against the top wall of the storage chamber. The first limiting rings allow for a certain spatial gap between the top of the upper piston plate and the top wall of the storage chamber, and one end of the spray pipe is connected to this space.

[0016] Furthermore, the inner wall of the storage chamber is provided with multiple U-shaped water inlets at equal intervals in an annular shape, and multiple high-pressure nozzles that are connected to the lower ports of the corresponding U-shaped water inlets are fixedly connected to the inner wall of the storage chamber at equal intervals in an annular shape.

[0017] Furthermore, the second piston assembly includes a lower piston plate that is slidably and sealed within the flow cavity. A sealing ring that is slidably and sealed to the inner wall of the flow cavity is fixedly connected to the bottom edge of the lower piston plate. A plurality of third guide rods are circumferentially and fixedly connected to the bottom of the lower piston plate. The bottom ends of the plurality of third guide rods are slidably and sealed through the bottom of the main body and extend downward. A third spring is sleeved on the outer wall of the plurality of third guide rods. The two ends of the third springs are fixedly connected to the bottom end of the third guide rod and the bottom outer wall of the main body, respectively.

[0018] Furthermore, the outer walls of the plurality of third guide rods are all fixedly fitted with second limiting rings, and the bottoms of the plurality of second limiting rings abut against the bottom wall of the storage cavity.

[0019] Furthermore, a water guiding component is provided on one side of the main body, which is simultaneously connected to the storage chamber and the flow chamber. When the storage chamber is blocked, as the water pressure in the storage chamber gradually increases, the water in the storage chamber can be automatically guided into the flow chamber and the lower piston plate can be controlled to move, so that the water can be automatically guided into the water storage chamber. In addition, during the upward movement of the lower piston plate, the blockage in the storage chamber can be automatically cleared.

[0020] Furthermore, the water guiding assembly includes a piston seat that is fixedly connected to the side of the main body away from the water storage chamber. One end of the piston seat has a groove that communicates with the storage chamber. A piston block is slidably connected inside the groove. A second guide rod is fixedly connected to the outer side of the piston block. The other end of the second guide rod slidably passes through the side of the piston seat away from the main body and extends outward. A second spring is sleeved on the outer wall of the second guide rod. The two ends of the second spring are fixedly connected to the end of the second guide rod located outside the piston seat and the outer wall of one end of the piston seat, respectively.

[0021] Furthermore, a water guide pipe that communicates with the slide groove is fixedly connected to the top of the piston seat, and the other end of the water guide pipe is connected to the flow cavity and located below the sealing ring.

[0022] Furthermore, the bottom of the piston seat is fixedly connected to a water outlet pipe that communicates with the slide groove, and the other end of the water outlet pipe is connected to the flow cavity and located above the lower piston plate.

[0023] Furthermore, a filter frame is fixedly connected to the bottom inner wall of the storage cavity, and several filter holes are provided in the internal space of the filter frame.

[0024] Furthermore, a cap is threaded onto the top of the feeding tube, a connecting rod is fixedly connected inside the top of the cap, and a plug is fixedly connected to the bottom of the connecting rod to seal the opening at the bottom of the feeding tube.

[0025] Furthermore, a threaded rod is rotatably connected through the top inner wall of the flow cavity. The top end of the threaded rod extends into the storage cavity and is fixedly connected with multiple agitators at equal intervals in a ring. The bottom of each agitator contacts the bottom inner wall of the storage cavity. The bottom end of the threaded rod extends downward and is threaded with a nut block. Multiple L-shaped rods are fixedly connected at equal intervals in a ring on the outer wall of the nut block. The bottom ends of each L-shaped rod are fixedly connected to the top of the lower piston plate.

[0026] Furthermore, a discharge pipe connected to the flow cavity is provided on one side of the bottom of the main body, and a third valve body is installed on the discharge pipe.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. The fertigation device disclosed in this invention utilizes a circulating water system design between the storage chamber and the water chamber. Combined with the water pressure drive function of the first piston assembly, when the spray pipe is closed, the water pressure pushes the upper piston plate downward, causing the water to flow through the high-pressure nozzle and form turbulence, accelerating fertilizer dissolution. When the spray pipe is opened, the first spring resets the upper piston plate, ensuring that all the fertigation solution is discharged, achieving irrigation and avoiding residue. Simultaneously, the cooperation between the U-shaped water inlet and the high-pressure nozzle further enhances the water flow impact, shortens the mixing time, and improves the uniformity of dissolution.

[0029] 2. The water-fertilizer integrated mixing and irrigation device disclosed in this invention, when the filter holes are blocked by fertilizer, the water pressure in the storage chamber increases, pushing the piston block of the water guiding component to move, so that the water flows through the water guiding pipe into the lower part of the flow chamber, driving the lower piston plate of the second piston component to move upward, forcing part of the water flow to flow back and flush upward from the filter holes, thus achieving automatic unblocking. At the same time, the linkage design of the stirring blade and the threaded rod rotates when the lower piston plate moves, further breaking up the blockage and improving the unblocking efficiency.

[0030] 3. The water and fertilizer integrated mixing and irrigation device disclosed in this invention can limit the entry of large-particle fertilizer into the flow chamber by setting a filter screen frame, so as to avoid clogging the water passage or damaging the water pump.

[0031] 4. The water and fertilizer integrated mixing and irrigation device disclosed in this invention can remove residual water in the flow chamber and water guide pipe by setting up a discharge pipe, thus avoiding long-term retention and corrosion of components.

[0032] This invention enables the mixing of fertilizer and water and irrigation using a single water pump and electrical device, which not only saves equipment costs but also simplifies operation. By simply controlling the opening of the spray pipe, two different modes can be freely switched without cumbersome switching operations. At the same time, the circulating flow of water can achieve a rapid mixing effect with good mixing quality.

[0033] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0035] Figure 1 This is a left perspective view of the overall structure of the present invention;

[0036] Figure 2 This is a right-side perspective view of the overall structure of the present invention;

[0037] Figure 3 This is a three-dimensional sectional view of the overall structure of the present invention;

[0038] Figure 4 For the present invention Figure 3 A further sectional view of the overall structure;

[0039] Figure 5 This is a three-dimensional sectional view of the main structure of the present invention;

[0040] Figure 6 This is a front sectional view of the overall structure of the present invention;

[0041] Figure 7 This is a schematic diagram of the connection structure between the upper piston plate and the feeding pipe of the present invention;

[0042] Figure 8 This is a three-dimensional sectional view of the piston seat structure of the present invention;

[0043] Figure 9 This is a schematic diagram of the connection structure between the lower piston plate and the threaded rod of the present invention;

[0044] Figure 10 For the present invention Figure 9 A bottom view of the overall structure.

[0045] Reference numerals: 1. Main body; 2. Water storage chamber; 3. Water inlet pipe; 4. Water pump; 5. Support leg; 6. Pumping pipe; 7. Material storage chamber; 8. Feeding pipe; 9. Water delivery pipe; 10. Flow chamber; 11. Spraying pipe; 12. Upper piston plate; 13. Screw cap; 14. Connecting rod; 15. Plug; 16. First guide rod; 17. First spring; 18. First limiting ring; 19. U-shaped water delivery hole; 20. First valve body; 21. Drain pipe; 22. Filter hole; 23. High pressure 24. Nozzle; 25. Filter screen frame; 26. Second valve body; 27. Piston seat; 28. Lower piston plate; 29. ​​Threaded rod; 30. Agitator blade; 31. Slide groove; 32. Piston block; 33. Water guide pipe; 34. Second guide rod; 35. Second spring; 36. Water outlet pipe; 37. Discharge pipe; 38. Water passage hole; 39. Sealing ring; 40. Third guide rod; 41. Third spring; 42. Second limit ring; 43. L-shaped rod; 44. Nut block; 45. Third valve body. Detailed Implementation

[0046] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0047] Example 1: As Figures 1-6 As shown, an integrated water and fertilizer mixing and irrigation device includes a main body 1. Multiple support legs 5 are fixedly connected to the bottom of the main body 1. A water storage chamber 2 is formed inside the main body 1. A water inlet pipe 3, connected to the water storage chamber 2, is located on one side of the top of the main body 1 for adding water. A drain pipe 21, connected to the water storage chamber 2, is located on one side of the bottom of the main body 1 for draining water. A second valve body 25 is installed on the drain pipe 21. A material storage chamber 7 is formed inside the main body 1. A feeding pipe 8 is fixedly connected to the top of the main body 1 and is connected to the material storage chamber 7 for adding fertilizer. Water mixes and dissolves the added fertilizer after entering the material storage chamber 7. A spray pipe 11 is fixedly connected to the top of one side of the main body 1 and is connected to the material storage chamber 7 for water and fertilizer irrigation spraying. A first valve body 20 is installed on the spray pipe 11.

[0048] In one aspect of this embodiment, a water pump 4 is fixedly connected to the top outer wall of the main body 1. The inlet end of the water pump 4 is fixedly connected to a pumping pipe 6 extending into the water storage chamber 2, and the outlet end of the water pump 4 is fixedly connected to a water delivery pipe 9. The other end of the water delivery pipe 9 is fixedly connected through the top of the main body 1 and communicates with the storage chamber 7. Water is first injected into the water storage chamber 2 through the inlet pipe 3. One end of the inlet pipe 3 is connected to a metering pump for quantitative water delivery. Then, a quantitative amount of fertilizer is added into the storage chamber 7 through the feeding pipe 8. The water injection height can reach the height of the water storage chamber 2. At this point, the water can enter the flow chamber 10 through the water passage 37 and then enter the storage chamber 7 through the filter hole 22, pre-soaking the fertilizer. Of course, soaking can also be omitted, depending on the irrigation time. Next, the water pump 4 is started, which can draw water from the water storage chamber 2 through the water pumping pipe 6 and transport it to the material storage chamber 7 through the water delivery pipe 9 to mix with the fertilizer and dissolve the fertilizer. The dissolved liquid can directly enter the flow chamber 10 through the filter hole 22 and then enter the water storage chamber 2 through the water passage hole 37. It is then circulated by the water pump 4 until all the fertilizer is completely dissolved.

[0049] The irrigation device also includes a first piston assembly located inside the storage chamber 7. When the spray pipe 11 is closed, the first piston assembly can be automatically controlled to adjust and move under water pressure to keep the water flowing and complete the mixing and dissolution of the fertilizer. When the spray pipe 11 is open, the water pump 4 can directly spray the mixed water and fertilizer in the water storage chamber 2 through the spray pipe 11 for irrigation.

[0050] In one aspect of this embodiment, the main body 1 has a flow cavity 10 located directly below the storage cavity 7, and the top wall of the flow cavity 10 is connected to the bottom wall of the storage cavity 7 by a plurality of filter holes 22 arranged in a ring, and the flow cavity 10 is connected to the water storage cavity 2 by a plurality of water passage holes 37 arranged in an arc.

[0051] This invention can be used in the field of integrated water and fertilizer mixing and irrigation devices, and can also be applied to other fields of this invention.

[0052] Example 2: This example is a further improvement on the previous example: as follows Figures 1-7As shown, the first piston assembly includes an upper piston plate 12 that is slidably and sealed inside the storage chamber 7. The upper piston plate 12 is located below the spray pipe 11 and is slidably and sealed on the outer wall of the feeding pipe 8. Multiple first guide rods 16 are fixedly and annularly at equal intervals on the top of the upper piston plate 12. The top ends of the multiple first guide rods 16 slidably penetrate the top of the main body 1 and extend upwards. A first spring 17 is fitted onto the outer wall of each of the multiple first guide rods 16, with both ends of the first spring 17 fixedly connected to the top ends of the first guide rods 16 and the top outer wall of the main body 1, respectively. A first limiting ring 18 is fixedly fitted onto the outer wall of each of the multiple first guide rods 16, with the tops of the multiple first limiting rings 18 abutting against the top wall of the storage chamber 7. The first limiting rings 18 allow for a certain spatial gap between the top of the upper piston plate 12 and the top wall of the storage chamber 7, and one end of the spray pipe 11 is connected to this space. When the spray pipe 11 is closed, the water pump 4 draws water from the water storage chamber 2 into the material storage chamber 7. As the water volume increases, the water pressure rises, preventing water from flowing out of the spray pipe 11. Instead, the water pressure pushes the upper piston plate 12 downwards, simultaneously causing the first guide rod 16 to slide downwards and compress the first spring 17. When the fertilizer is completely dissolved in the water, irrigation can be carried out by simply opening the first valve body 20. The fertilizer solution above the upper piston plate 12 will then flow out from the spray pipe 11, achieving automatic irrigation. Simultaneously, as the water pressure gradually decreases, the upper piston plate 12, under the elastic force of the multiple first springs 17, slides upwards. Finally, it is stopped by the first limiting ring 18, allowing the fertilizer solution to flow normally from the space above the upper piston plate 12, thus enabling the complete fertilizer solution inside the main body 1 to be transported for irrigation.

[0053] In one aspect of this embodiment, the inner wall of the storage chamber 7 is provided with a plurality of U-shaped water inlets 19 arranged in an annular pattern at equal intervals. A plurality of high-pressure nozzles 23 are fixedly connected to the inner wall of the storage chamber 7 in an annular pattern at equal intervals, each communicating with the lower port of a corresponding U-shaped water inlet 19. When the upper piston plate 12 is in its initial state, it is higher than the upper port of the U-shaped water inlet 19. Under water pressure, the upper piston plate 12 slides downwards. When the top of the upper piston plate 12 is lower than the upper port of the U-shaped water inlet 19, water flows into the space below the upper piston plate 12 through the U-shaped water inlets 19 and is sprayed out from the plurality of high-pressure nozzles 23. The circulating spraying of water strengthens the water flow, thereby accelerating the mixing and dissolution of the fertilizer and improving mixing efficiency. After water flows out of the U-shaped water inlets 19, the upper piston plate 12 remains in a water-flowing position as water continues to be supplied. Even without shutting off the water pump 4, once all the fertilizer has dissolved in the water, the first valve body 20 can be opened directly, allowing the circulating fertilizer solution to flow out from the spray pipe 11. Afterward, the water pressure above the upper piston plate 12 will gradually decrease, causing the upper piston plate 12 to slowly move upward. Once the upper piston plate 12 returns to its original position, the fertilizer solution delivered by the water pump 4 will no longer circulate through the U-shaped water inlet 19, but will instead flow entirely out of the spray pipe 11 for irrigation, until all the fertilizer solution has been delivered or the irrigation work is completed.

[0054] In one aspect of this embodiment, a cap 13 is threaded onto the top of the feeding pipe 8. A connecting rod 14 is fixedly connected inside the top of the cap 13, and a plug 15 is fixedly connected to the bottom of the connecting rod 14 to seal the bottom opening of the feeding pipe 8. Before adding fertilizer, the cap 13 is unscrewed and then lifted upwards, bringing the connecting rod 14 and the plug 15 out of the feeding pipe 8 together. Then, the fertilizer is added into the storage chamber 7 through the feeding pipe 8. After adding fertilizer, the connecting rod 14 and the plug 15 are inserted back into the feeding pipe 8, and the cap 13 is tightened to seal the feeding pipe 8, preventing water and fertilizer from entering the feeding pipe 8 and affecting the fertilizer's dissolution efficiency. This also prevents water from overflowing from the top of the feeding pipe 8 when the filter holes 22 become clogged and the water pressure increases.

[0055] Example 3: This example is a further improvement on the previous example: as follows Figures 1-10As shown, the irrigation device also includes a second piston assembly located within the flow chamber 10, used to automatically unblock the storage chamber 7 during water circulation. The second piston assembly includes a lower piston plate 27 that is slidably and sealingly connected within the flow chamber 10. A sealing ring 38, which slidably and sealingly connects to the inner wall of the flow chamber 10, is fixedly connected to the bottom edge of the lower piston plate 27. Multiple third guide rods 39 are circumferentially and fixedly connected to the bottom of the lower piston plate 27. The bottom ends of the multiple third guide rods 39 slidably penetrate the bottom of the main body 1 and extend downwards. A third spring 40 is fitted onto the outer wall of each of the multiple third guide rods 39, with both ends of the third spring 40 fixedly connected to the bottom end of the third guide rod 39 and the bottom outer wall of the main body 1, respectively. A second limiting ring 41 is fixedly fitted onto the outer wall of each of the multiple third guide rods 39, with the bottom of each second limiting ring 41 abutting against the bottom wall of the storage chamber 7. One side of the main body 1 is provided with a water guiding component that is simultaneously connected to the storage chamber 7 and the flow chamber 10. When the storage chamber 7 is blocked, as the water pressure in the storage chamber 7 gradually increases, the water in the storage chamber 7 can be automatically guided into the flow chamber 10 and the lower piston plate 27 can be controlled to move, so that the water can be automatically guided into the water storage chamber 2. In addition, during the upward movement of the lower piston plate 27, the blockage of the storage chamber 7 can be automatically cleared.

[0056] In one aspect of this embodiment, the water guiding assembly includes a piston seat 26 that is fixedly connected to the side of the main body 1 away from the water storage chamber 2. One end of the piston seat 26 has a groove 30 that communicates with the storage chamber 7. A piston block 31 is slidably connected inside the groove 30. A second guide rod 33 is fixedly connected to the outer side of the piston block 31. The other end of the second guide rod 33 slidably passes through the side of the piston seat 26 away from the main body 1 and extends outward. A second spring 34 is sleeved on the outer wall of the second guide rod 33. The two ends of the second spring 34 are fixedly connected to the end of the second guide rod 33 located outside the piston seat 26 and the outer wall of one end of the piston seat 26, respectively. A water guiding pipe 32 that communicates with the groove 30 is fixedly connected to the top of the piston seat 26, and the other end of the water guiding pipe 32 communicates with the flow chamber 10 and is located below the sealing ring 38. A water outlet pipe 35, connected to the slide groove 30, is fixedly connected to the bottom of the piston seat 26. The other end of the water outlet pipe 35 is connected to the flow chamber 10 and located above the lower piston plate 27. When dissolving fertilizer, large fertilizer particles dissolve relatively slowly and remain in the storage chamber 7 after being filtered through the filter holes 22. With the flow of water, the fertilizer softens as it soaks in the water and easily adheres to the filter holes 22, causing blockage. When the filter holes 22 are blocked by fertilizer, water cannot flow out of the filter holes 22 into the flow chamber 10. The water gradually increases in the space below the upper piston plate 12, and the water pressure increases. At this time, the water pushes the piston block 31 to move, while simultaneously driving the second guide rod 33 to extend outward and stretch the second spring 34. After the piston block 31 moves past the water guide pipe 32, the water will pass through the slide groove 30 into the water guide pipe 32 and be guided into the space below the lower piston plate 27 in the flow chamber 10. As the water volume gradually increases, the water pressure rises, pushing the lower piston plate 27 upwards. Simultaneously, this causes the third guide rod 39 to move upwards and compress the third spring 40. The sealing ring 38 slides upwards synchronously with the lower piston plate 27. By blocking the water passage hole 37, the sealing ring 38 allows the lower piston plate 27 to move upwards a greater distance. When the bottom of the sealing ring 38 is higher than the lowest water passage hole 37, the introduced water flows back into the water storage chamber 2 through the water passage hole 37, forming a circulating flow. This prevents blockage caused by the filter hole 22, which could prevent further water flow and avoid damage to the structure of the main body 1 or the water pump 4 under excessive water pressure. In the initial state, the lower piston plate 27 and the sealing ring 38 block part of the water passage hole 37, leaving the remaining water passage holes above the lower piston plate 27. Therefore, the water flowing down from the storage chamber 7 can flow back into the water storage chamber 2 through the water hole 37 in the space above the lower piston plate 27, so that all the water and fertilizer solution in the entire body 1 can be extracted for irrigation.Since there is always water in the space above the lower piston plate 27, and the water in the storage chamber 7 will not flow into the flow chamber 10 from the filter hole 22 when the storage chamber 7 is blocked, when the lower piston plate 27 is pressed upward, it can push the water in the space above upward. Some water flows into the water storage chamber 2 from the water passage 37, and some water flows upward from the filter hole 22, pushing the fertilizer blocked on the filter hole 22 upward in the water, thereby achieving the effect of unblocking. After unblocking, the water will resume flowing downward from the filter hole 22 to reduce pressure. When the water pressure at the piston block 31 gradually decreases, the piston block 31 will be reset and moved under the elastic force of the second spring 34, and slowly re-block the water guide pipe 32. Water will no longer be introduced into the space below the lower piston plate 27. At this time, under the elastic force of multiple third springs 40, the lower piston plate 27 will move downward and reset. The water below will then flow back into the water guide pipe 32 and into the slide groove 30. The returned water will then flow into the flow chamber 10 through the water outlet pipe 35, and through the space above the lower piston plate 27, it will flow back into the water storage chamber 2 through the water passage hole 37. During the downward movement of the lower piston plate 27, the second limiting ring 41 will contact and limit the flow chamber 10 bottom wall, creating a certain gap between the bottom of the sealing ring 38 and the bottom wall of the flow chamber 10. One end of the water guide pipe 32 is connected to this space to ensure normal water introduction.

[0057] In one aspect of this embodiment, a threaded rod 28 is rotatably connected to the top inner wall of the flow cavity 10. The top end of the threaded rod 28 extends into the storage cavity 7 and is fixedly connected to multiple agitator blades 29 at equal intervals in a ring. The bottom of each agitator blade 29 contacts the bottom inner wall of the storage cavity 7. The bottom end of the threaded rod 28 extends downward and is threadedly fitted with a nut block 43. The outer wall of the nut block 43 is fixedly connected to multiple L-shaped rods 42 at equal intervals in a ring. The bottom ends of each L-shaped rod 42 are fixedly connected to the top of the lower piston plate 27. When the lower piston plate 27 slides upward under water pressure, the multiple L-shaped rods 42 can drive the nut block 43 to move upward on the threaded rod 28, and at the same time drive the threaded rod 28 to rotate, thereby driving the agitator blades 29 to rotate and move. The upward movement of the lower piston plate 27 can not only drive the water flow upward, but also realize the automatic rotation of the agitator blades 29, thereby further improving the effect of unclogging the filter holes 22. Furthermore, when the lower piston plate 27 moves downward, it can also drive the agitator 29 to reverse, thus preventing blockage caused by the downward flow of water.

[0058] In one aspect of this embodiment, a discharge pipe 36 connected to the flow cavity 10 is provided on one side of the bottom of the main body 1, and a third valve body 44 is installed on the discharge pipe 36. Since some water remains in the space below the lower piston plate 27 after it resets, and some water also remains in the water guide pipe 32, when the water needs to be cleaned after irrigation, the discharge pipe 36 is opened through the third valve body 44 to drain all the water from the space below the lower piston plate 27 and the water guide pipe 32. Since some of the water in the water guide pipe 32 flows directly into the chute 30 and then into the main body 1 through the outlet pipe 35, it has already been used entirely for irrigation. Therefore, the remaining water in the water guide pipe 32 can only be discharged through the discharge pipe 36.

[0059] Example 4: This example is a further improvement on the previous example: as follows Figures 1-6 As shown, a filter screen frame 24 is fixedly connected to the bottom inner wall of the storage chamber 7, and several filter holes 22 are provided inside the filter screen frame 24. When fertilizer is fed into the storage chamber 7 from the feeding pipe 8, all fertilizer will be directly fed into the filter screen frame 24 for storage. At the same time, the upper piston plate 12 moves downward under the action of water pressure. When the bottom of the upper piston plate 12 abuts against the top of the filter screen frame 24, the U-shaped water inlet 19 can deliver water normally. By the upper piston plate 12 abutting against the top of the filter screen frame 24, the top of the filter screen frame 24 can be sealed, preventing large fertilizer particles from flowing out of the top of the filter screen frame 24 in the water. When water is sprayed from the high-pressure nozzle 23, water can pass through the filter screen frame 24 and enter its interior, so that the entire filter screen frame 24 is submerged in water, realizing the dissolution of the fertilizer inside, while large fertilizer particles will be directly confined and dissolved inside the filter screen frame 24. Because there is an annular channel between the outer wall of the filter frame 24 and the inner wall of the storage chamber 7, and the chute 30 is connected to this annular channel, since there is no outflow of large-particle fertilizer, when the filter hole 22 is blocked, the water flowing into the chute 30 will not contain large-particle fertilizer, so large-particle fertilizer will not enter the water storage chamber 2, and therefore will not enter the water pump 4, thus avoiding damage to the water pump 4 during the water circulation process.

[0060] However, as is well known to those skilled in the art, the working principle and wiring method of the water pump 4 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A water and fertilizer integrated mixing and irrigation device, comprising a main body (1), a plurality of support legs (5) fixedly connected to the bottom of the main body (1), a water storage chamber (2) opened inside the main body (1), an inlet pipe (3) connected to the water storage chamber (2) on one side of the top of the main body (1) for adding water, and a drain pipe (21) connected to the water storage chamber (2) on one side of the bottom of the main body (1) for draining water, and a second valve body (25) installed on the drain pipe (21), characterized in that, Also includes: The storage chamber (7) is located inside one side of the main body (1); The water conveying mechanism is located at the top of the main body (1) and can convey water in the water storage chamber (2) to the material storage chamber (7); The feeding pipe (8) is fixedly installed on the top side of the main body (1) and connected to the storage chamber (7) for feeding fertilizer. Water mixes and dissolves the fertilizer after entering the storage chamber (7). The spray pipe (11) is fixedly connected to the top of one side of the main body (1) and is connected to the storage chamber (7) for water and fertilizer irrigation spraying. The first valve body (20) is installed on the spray pipe (11). The first piston assembly is located inside the storage chamber (7). When the spray pipe (11) is closed, the first piston assembly can be automatically controlled to adjust and move under the action of water pressure, so that the water is in a flowing state and the fertilizer is mixed and dissolved. When the spray pipe (11) is open, the water and fertilizer mixed in the water storage chamber (2) can be directly sprayed through the spray pipe (11) by the water pump (4). The flow chamber (10) is located inside the main body (1) and directly below the storage chamber (7). The top wall of the flow chamber (10) and the bottom wall of the storage chamber (7) are connected by a number of filter holes (22) arranged in a ring. The flow chamber (10) and the water storage chamber (2) are connected by a number of water passage holes (37) arranged in an arc. The second piston assembly is located in the flow chamber (10) and is used to automatically unblock the storage chamber (7) during the water circulation process. The first piston assembly includes an upper piston plate (12) that is sealed and slidably connected inside the storage chamber (7). The upper piston plate (12) is located below the spray pipe (11) and is sealed and slidably sleeved on the outer wall of the feeding pipe (8). The top of the upper piston plate (12) is fixedly connected with multiple first guide rods (16) at equal intervals in a ring shape. The top ends of the multiple first guide rods (16) are sealed and slidably penetrate the top of the main body (1) and extend upward. The outer walls of the multiple first guide rods (16) are all sleeved with first springs (17). The two ends of the first springs (17) are fixedly connected to the top ends of the first guide rods (16) and the top outer wall of the main body (1), respectively. The outer walls of the multiple first guide rods (16) are all fixedly fitted with first limiting rings (18), and the tops of the multiple first limiting rings (18) abut against the top wall of the storage cavity (7); The inner wall of the storage chamber (7) is provided with a plurality of U-shaped water delivery holes (19) at equal intervals in an annular shape, and a plurality of high-pressure nozzles (23) are fixedly connected to the lower port of the corresponding U-shaped water delivery holes (19) at equal intervals in an annular shape on the inner wall of the storage chamber (7).

2. The water and fertilizer integrated mixing and irrigation device as described in claim 1, characterized in that, The water conveying mechanism includes a water pump (4) fixedly connected to the top outer wall of the main body (1), a water inlet end of the water pump (4) fixedly connected to a water pumping pipe (6) extending into the water storage chamber (2), a water outlet end of the water pump (4) fixedly connected to a water conveying pipe (9), and the other end of the water conveying pipe (9) fixedly penetrates the top of the main body (1) and communicates with the material storage chamber (7).

3. The water and fertilizer integrated mixing and irrigation device as described in claim 1, characterized in that, The second piston assembly includes a lower piston plate (27) that is slidably connected in the flow chamber (10). A sealing ring (38) that is slidably connected to the inner wall of the flow chamber (10) is fixedly connected to the bottom edge of the lower piston plate (27). A plurality of third guide rods (39) are slidably connected to the bottom of the lower piston plate (27) in an annular shape. The bottom ends of the plurality of third guide rods (39) are slidably connected through the bottom of the main body (1) and extend downward. A third spring (40) is sleeved on the outer wall of the plurality of third guide rods (39). The two ends of the third spring (40) are fixedly connected to the bottom end of the third guide rod (39) and the bottom outer wall of the main body (1), respectively. The outer walls of the multiple third guide rods (39) are all fixedly fitted with second limiting rings (41), and the bottom of the multiple second limiting rings (41) abuts against the bottom wall of the storage cavity (7); One side of the main body (1) is provided with a water guiding component that is simultaneously connected to the storage chamber (7) and the flow chamber (10). When the storage chamber (7) is blocked, as the water pressure in the storage chamber (7) gradually increases, the water in the storage chamber (7) can be automatically guided into the flow chamber (10) and the lower piston plate (27) can be controlled to move so that the water can be automatically guided into the water storage chamber (2). In the process of the lower piston plate (27) moving upward, the automatic unblocking of the storage chamber (7) can be completed.

4. The water and fertilizer integrated mixing and irrigation device as described in claim 3, characterized in that, The water guiding assembly includes a piston seat (26) that is fixedly connected to the side of the main body (1) away from the water storage chamber (2). One end of the piston seat (26) is provided with a groove (30) that communicates with the storage chamber (7). A piston block (31) is slidably connected inside the groove (30). A second guide rod (33) is fixedly connected to the outer side of the piston block (31). The other end of the second guide rod (33) is slidably connected to the side of the piston seat (26) away from the main body (1) and extends outward. A second spring (34) is sleeved on the outer wall of the second guide rod (33). The two ends of the second spring (34) are fixedly connected to the end of the second guide rod (33) located outside the piston seat (26) and the outer wall of one end of the piston seat (26), respectively. The top of the piston seat (26) is fixedly connected to a water guide pipe (32) that communicates with the slide groove (30), and the other end of the water guide pipe (32) is connected to the flow cavity (10) and located below the sealing ring (38). The bottom of the piston seat (26) is fixedly connected to a water outlet pipe (35) that communicates with the slide groove (30), and the other end of the water outlet pipe (35) is connected to the flow chamber (10) and located above the lower piston plate (27).

5. The water and fertilizer integrated mixing and irrigation device as described in claim 4, characterized in that, A filter frame (24) is fixedly connected to the bottom inner wall of the storage chamber (7), and a number of filter holes (22) are provided in the internal space of the filter frame (24).

6. The water and fertilizer integrated mixing and irrigation device as described in claim 5, characterized in that, The top end of the feeding tube (8) is threaded with a cap (13), and a connecting rod (14) is fixedly connected inside the top end of the cap (13). A plug (15) is fixedly connected to the bottom end of the connecting rod (14) to seal the opening at the bottom end of the feeding tube (8).

7. The water and fertilizer integrated mixing and irrigation device as described in claim 6, characterized in that, The top inner wall of the flow cavity (10) is rotatably connected to a threaded rod (28). The top end of the threaded rod (28) extends into the storage cavity (7) and is fixedly connected with multiple agitators (29) in an annular shape at equal intervals. The bottom of the multiple agitators (29) is in contact with the bottom inner wall of the storage cavity (7). The bottom end of the threaded rod (28) extends downward and is threaded with a nut block (43). The outer wall of the nut block (43) is fixedly connected with multiple L-shaped rods (42) in an annular shape at equal intervals. The bottom ends of the multiple L-shaped rods (42) are fixedly connected to the top of the lower piston plate (27).

8. The water and fertilizer integrated mixing and irrigation device as described in claim 7, characterized in that, The bottom side of the main body (1) is provided with a discharge pipe (36) that is connected to the flow cavity (10), and a third valve body (44) is installed on the discharge pipe (36).

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