A water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees and its usage method

Abstract

This invention relates to the field of water-saving and fertilizer-retaining technology for fruit trees, and discloses a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees. The device includes a pipe buried 80-120cm apart at a depth of 50cm in the planting row spacing of the fruit trees. The outer surface of the pipe has several absorption holes for draining water and fertilizer from the pipe. The top of the pipe is covered with a layer of sand and gravel and kraft paper to cover the absorption holes. This water-saving, fertilizer-retaining, and frost-resistant cultivation device and its method of use, by burying the nutrient trough precisely where most of the fruit tree's root system is located, only requires a small amount of water and fertilizer or nutrient solution to be injected. This avoids the large amount of fertilizer that accumulates in the soil and is not well absorbed and utilized by the roots, resulting in fertilizer waste and soil pollution, which is a consequence of trenching and spraying fertilization. It also saves water wasted on surface irrigation, achieving a good water-saving and fertilizer-retaining effect, and effectively prevents the serious impact of early spring frost on fruit tree flowering.

Description

Technical Field

[0001] This invention relates to the field of water-saving and fertilizer-preserving technology for fruit trees, specifically to a water-saving, fertilizer-preserving, and frost-resistant cultivation device for fruit trees and its usage method. Background Technology

[0002] China's fruit trees are mainly distributed in mountainous and hilly areas, where their water needs rely primarily on natural rainfall. However, the annual rainfall in the Loess Plateau region of Northwest China is relatively low. Due to the scattered planting by individual households and the lack of water sources, drip irrigation facilities cannot be installed, making it difficult to meet the water needs of fruit trees in a timely and accurate manner. Furthermore, the fertilization of fruit trees is mainly carried out by manually applying solid (granular / powdered) fertilizers through trenching. Due to uneven natural rainfall, the water-fertilizer integration period is short, resulting in low fertilizer utilization efficiency, environmental pollution, severe soil compaction, insufficient air in the root system, and obstructed root respiration, which seriously affects the metabolism of fruit trees. At the same time, the current topdressing of fruit trees mainly uses spray guns to inject water and fertilizer through holes, which is small in quantity, time-consuming, labor-intensive, and has minimal effect.

[0003] Spring frost is the most significant natural disaster affecting fruit tree yield. The timing of the frost coincides with the peak flowering period of fruit trees. When the flowers are in full bloom, the pollen tubes in the flowers are least resistant to frost. Frost damage prevents the flowers from being pollinated, which in turn prevents them from bearing fruit. The current method is to use smoke fumigation for frost protection. Specifically, a few hours before the arrival of the frost, straw or other fuels are lit to generate smoke that raises the air temperature and helps to resist the frost.

[0004] In related technologies, fertilization through trenching or spraying with a nozzle requires drilling about a dozen holes per fruit tree, which is time-consuming and labor-intensive. Moreover, it is difficult for the fertilizer to reach the roots of the fruit trees. Since it relies on natural rainfall, and it takes a long time for granular fertilizer to dissolve and reach the roots, the water and fertilizer cannot be supplied to the roots in a timely and accurate manner when the fruit trees need nutrients, thus failing to meet the fruit trees' water and fertilizer requirements and leading to a large-scale reduction in fruit yield. Furthermore, although fumigation for frost protection can raise the air temperature by about 0.5℃, it is difficult to effectively prevent frost damage when facing the low temperatures of -5℃ to -8℃ during the flowering period. At the same time, fumigation for frost protection causes serious air pollution and results in a serious waste of resources such as straw. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees and its usage method. The nutrient trough is buried precisely where most of the fruit tree's root system is located. Only the appropriate amount of water, fertilizer, or nutrient solution needed by the fruit tree needs to be injected. This avoids the problem of large amounts of fertilizer accumulating in the soil and not being absorbed by the roots, resulting in fertilizer waste and soil pollution, which is common with trenching and spraying fertilization. It also saves water wasted on surface irrigation, achieving a better water and fertilizer saving effect. Furthermore, it effectively prevents the severe impact of early spring frost on fruit tree flowering, solving the problems of insufficient water and fertilizer utilization, affecting fruit tree metabolism, and the inability to perform frost protection.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees, comprising a pipe buried at a spacing of 80-120cm between planting rows of fruit trees and a depth of 50cm. The outer surface of the pipe has several absorption holes for discharging water and fertilizer from inside the pipe. The top of the pipe is provided with a layer of sand and gravel and kraft paper to cover the absorption holes. Both ends of the pipe are provided with sealing components. The top of the pipe is provided with two mounting components. The pipe is provided with liquid inlet pipes for adding water and fertilizer into the pipe through the two mounting components. The tops of the two liquid inlet pipes are fixedly connected with feed nozzles, and the interiors of the two feed nozzles are detachably fitted with grid plates. Both liquid inlet pipes are provided with water-driven components for squeezing and driving the water and fertilizer inside the liquid inlet pipes.

[0009] Preferably, the sealing assembly includes a sealing plate and a connecting sleeve that is fixedly connected to one end of the through pipe. A plurality of bolt rods are fixedly connected to the inner side of the sealing plate, and nuts are threaded onto the bolt rods. An annular sealing gasket is fixedly connected to the inner side of the sealing plate. An annular groove is formed on the outer surface of the connecting sleeve. A plurality of mounting holes communicating with the interior of the annular groove are formed at one end of the connecting sleeve, and bolt fasteners are provided in each of the mounting holes. An annular sealing opening is formed on the inner surface of one end of the connecting sleeve, and a sealing ring is provided in the annular sealing opening.

[0010] Preferably, a plurality of magnet plates are fixedly connected to the outer surface of one end of the connecting sleeve, and an annular sleeve for shielding the annular groove is slidably connected to the outer surface of the connecting sleeve, and an annular metal plate that is attracted to the plurality of magnet plates is fixedly connected to one end of the annular sleeve.

[0011] Preferably, the water-driven assembly includes a cylinder fixedly installed on the outer surface of the inlet pipe, a constricted tube installed inside the inlet pipe, and a one-way valve installed on the constricted tube. The top of one side of the cylinder is connected to the inside of the inlet pipe through an extraction tube, and the bottom of the cylinder is connected to the inside of the inlet pipe through an outlet tube. The other end of the extraction tube and the other end of the outlet tube are located at the top and bottom of the constricted tube, respectively.

[0012] The cylinder is internally sealed and slidably connected to a piston plate. A pressing rod is fixedly connected to the top of the piston plate. The top end of the pressing rod extends to the top of the cylinder, and a sealing sleeve is provided between the pressing rod and the cylinder.

[0013] Preferably, the installation assembly includes a sleeve fixedly connected to the through pipe and an insertion sleeve fixedly connected to the bottom end of the inlet pipe. An annular plate is fixedly connected to the inner surface of the sleeve, and an annular notch is provided at the top of the annular plate. A sealing gasket is provided inside the annular notch. A rotating sleeve is rotatably connected to the outer surface of the insertion sleeve, and a plurality of locking elements are provided between the rotating sleeve and the sleeve.

[0014] Preferably, the locking element includes several L-shaped locking holes opened at the bottom of the rotating sleeve and several protrusions fixed to the outer surface of the sleeve. Several limiting blocks are hinged to the outer surface of the rotating sleeve, and several U-shaped blocks are fixedly connected to the outer surface of the sleeve.

[0015] Preferably, an annular pad is fixedly connected to the inner surface of the feed nozzle, and several T-shaped blocks are fixedly connected to the top of the annular pad. Several insertion holes are opened on the outer surface of the grid plate, and a locking port is opened on one side of each of the insertion holes.

[0016] A method for using a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees includes the following steps:

[0017] S1. During fruit tree cultivation, the entire irrigation pipe is laid flat in the planting row of the fruit trees at a spacing of 80-120cm and buried at a depth of 50cm. The pipe is kept horizontal, and the two liquid inlet pipes are exposed 30cm above the ground. According to the fertilizer requirements of different fruit tree varieties, during the vegetative growth period of the fruit trees, the corresponding components and concentrations of aqueous solution are added at any time to form irrigation or fertilization.

[0018] S2. When frost protection is required, add a certain amount of water to the nutrient tank 30-40 days before the spring flowering period. Since the temperature 50cm below the ground is below zero at that time, the added water will freeze. Then cover the soil surface at that location with a film to protect it from the outside temperature. This will keep the root system of the fruit tree at a low temperature of 40-50cm, thereby delaying the flow of sap in the fruit tree and delaying the flowering period by 7-10 days. After the frost damage, add nutrient water to the nutrient tank to thaw the previously frozen water, promoting the growth of the fruit tree roots and promoting the flowering of the fruit tree.

[0019] S3. After using the device for 1-2 years, when the nutrient tank becomes clogged due to the death of fine roots, one end of the tube can be dug open, the sealing plate at that location can be removed, and water can be poured in through the liquid inlet pipe to completely flush out the impurities in the nutrient tank.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the present invention provides a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees, which has the following beneficial effects:

[0022] 1. The present invention uses a nutrient trough that is buried precisely at the location of most of the fruit tree's root system. Only a small amount of water and fertilizer or nutrient solution needed by the fruit tree needs to be injected. This avoids the problem of large amounts of fertilizer being far away from the crop roots and not being absorbed and utilized by the root system, which would otherwise lead to fertilizer waste and soil pollution. It also saves water from surface irrigation, achieving a better water and fertilizer saving effect. Moreover, it can effectively prevent the serious impact of early spring low temperature frost on fruit tree flowering.

[0023] 2. This invention uses a hand to drive the piston plate downwards, which compresses the liquid inside the cylinder, allowing the liquid to quickly pass through the outlet pipe and enter the lower part of the inlet pipe, and then quickly enter the interior of the through pipe. This prevents the through pipe from having too much sludge, which would hinder the injection of nutrient solution. Moreover, the upward movement of the piston plate creates a negative pressure at the bottom of the cylinder, which in turn creates a negative pressure at the bottom of the inlet pipe. This increases the force of the nutrient solution entering the lower part of the inlet pipe through the constricted tube, further improving the nutrient solution injection effect. It has a good liquid driving function and improves the nutrient solution replenishment effect.

[0024] 3. This invention allows the T-block to be moved to the locking position by rotating the grid plate, thus locking the grid plate and enabling quick installation without the need for disassembly tools, improving ease of installation and disassembly. The feed nozzle not only facilitates water or fertilizer injection for workers but also increases the rain-receiving area, improving rainwater absorption. The grid plate also filters fallen fruit leaves, preventing blockage of the liquid inlet pipe. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention;

[0026] Figure 2 This is a schematic diagram of the pipe structure in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention;

[0027] Figure 3 This is a schematic diagram of the liquid inlet pipe in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention;

[0028] Figure 4 This is a cross-sectional view of the liquid inlet pipe in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention.

[0029] Figure 5 This is a schematic diagram of the disassembly and assembly of the feed nozzle and grid plate in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention.

[0030] Figure 6 This is a structural exploded view of the components installed in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention;

[0031] Figure 7 This is a cross-sectional view of the combination of the sleeve and the insertion sleeve in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention;

[0032] Figure 8 This is a schematic diagram of the connection between two connecting sleeves in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention.

[0033] Figure 9 This is a schematic diagram of the connection between the connecting sleeve and the sealing plate in a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees proposed in this invention.

[0034] In the diagram: 1. Through pipe; 2. Absorption hole; 3. Sand and gravel layer; 4. Kraft paper; 5. Sealing assembly; 51. Sealing plate; 52. Connecting sleeve; 53. Bolt rod; 54. Nut; 55. Annular sealing gasket; 56. Annular groove; 57. Bolt fastener; 58. Magnet plate; 59. Annular sleeve; 510. Metal plate; 511. Sealing ring; 6. Mounting assembly; 61. Sleeve; 62. Insertion sleeve; 63. Annular 64. Plate; 65. Sealing gasket; 66. Rotating sleeve; 67. L-shaped locking port; 68. Protrusion; 69. Limiting block; 7. U-shaped block; 8. Annular pad; 9. Inlet pipe; 10. Feed nozzle; 11. Grid plate; 11. Water drive assembly; 111. Cylinder; 112. Narrow tube; 113. Piston plate; 114. Pressing rod; 115. One-way valve; 12. Locking port; 13. T-shaped block; 14. Insertion hole. Detailed Implementation

[0035] 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.

[0036] Example 1:

[0037] See attached document Figure 1-9 A water-saving, fertilizer-preserving, and frost-resistant cultivation device for fruit trees includes a pipe 1 buried at a spacing of 80-120cm between fruit tree planting rows and a depth of 50cm. The outer surface of the pipe 1 has several absorption holes 2 for draining water and fertilizer from the pipe 1. The top of the pipe 1 is provided with a layer of sand and gravel 3 and kraft paper 4 for covering the absorption holes 2. Both ends of the pipe 1 are provided with sealing components 5. The top of the pipe 1 is provided with two installation components 6. The pipe 1 is provided with liquid inlet pipes 8 for adding water and fertilizer to the pipe 1 through the two installation components 6. The top of the two liquid inlet pipes 8 is fixedly connected with a feed nozzle 9, and the inside of the two feed nozzles 9 is detachably installed with a grid plate 10. The two liquid inlet pipes 8 are provided with a water drive component 11 for squeezing and driving the water and fertilizer inside the liquid inlet pipe 8.

[0038] The interior of the through pipe 1 is designed as a nutrient tank to facilitate the storage of nutrient solution. The through pipe 1 is made of a PVC pipe or other high-strength material with an inner diameter of 80-120mm. At the top 1 / 3-1 / 4 of the 80-120mm PVC pipe, 4-6 rows of small holes of varying sizes and spacings (0.5-1cm) are drilled at intervals of 1-2cm. Both ends of the PVC pipe are sealed with removable sealing components 5. Two upward-facing inlet pipes 8, each 5cm in diameter and 70cm long, are vertically installed 20cm above both ends of the PVC pipe, forming the nutrient tank. The entire PVC pipe is laid horizontally at a spacing of 80-120mm between the fruit tree planting rows, buried at a depth of 50cm.

[0039] By burying the tube 1 at a spacing of 80-120cm and a depth of 50cm between fruit tree planting rows, the fruit tree roots can absorb the nutrient solution inside the tube 1 through several absorption holes 2. Moreover, by setting up a layer of sand and gravel 3 and kraft paper 4, the absorption holes 2 on the tube 1 can be blocked, which not only prevents soil from entering the tube 1 and has a corresponding sludge filtration function, but also does not affect the nutrient solution inside the tube 1 from being discharged through the absorption holes 2, thus forming a nutrient solution replenishment operation.

[0040] The location where the nutrient trough is buried is exactly where most of the fruit tree's root system is located. Only a small amount of water and fertilizer or nutrient solution needed by the fruit tree needs to be injected. This avoids the large amount of fertilizer that is far away from the crop roots and not absorbed and utilized by the root system, which would otherwise be a waste of fertilizer and soil pollution. It also saves water from surface irrigation and achieves a good water and fertilizer saving effect.

[0041] Because the root system has the characteristics of being attracted to water and fertilizer, when the fruit tree lacks water and nutrients, water and a prepared nutrient solution are added to the nutrient tank through the injection pipes 8 at both ends. Once the fruit tree roots enter the nutrient tank, they can accurately absorb the nutrient solution and water.

[0042] Moreover, the location where the nutrient trough is buried is exactly where most of the fruit tree's root system is located. When the fruit tree needs water and nutrients, water and fertilizer or nutrient solution can be injected into the inlet pipe 8 at any time. Water and nutrients can be applied to the fruit tree's root system in a timely and accurate manner, reducing the time that water and nutrients move in the soil and greatly improving the water and fertilizer utilization efficiency of the fruit tree.

[0043] This method can effectively prevent the severe impact of early spring frost on fruit tree flowering. By adding a certain amount of water to the nutrient trough 30-40 days before the flowering period in spring, the water will freeze due to the temperature being below zero at a depth of 50cm. This is known as the ice-burying technique. Then, the soil surface is covered with a film to protect it from the influence of the outside temperature. This keeps the root system of the fruit tree at a low temperature of 40-50cm, which delays the flow of sap in the tree and thus postpones the flowering period by 7-10 days, effectively preventing the severe impact of early spring frost on fruit tree flowering.

[0044] After the initial soil purchase, it does not need to be replaced for many years of subsequent growth. When irrigating and fertilizing, simply inject water and fertilizer or nutrient solution into the inlet pipe 8. This avoids the manpower and material resources required for manual trenching and fertilization or spraying, greatly saving human resources and reducing planting costs.

[0045] By injecting water, fertilizer, or nutrient solution into the nutrient tank whenever the fruit trees need nutrients, the water, fertilizer, or nutrient solution can be quickly and accurately supplied to the roots of the fruit trees. There is no need to wait for natural rainfall to cause drought, and the amount of water and fertilizer required is very small, saving water and fertilizer resources.

[0046] See attached document Figure 8-9 The sealing assembly 5 includes a sealing plate 51 and a connecting sleeve 52 that is fixedly connected to one end of the through pipe 1. Several bolt rods 53 are fixedly connected to the inner side of the sealing plate 51, and nuts 54 are threaded on the bolt rods 53. An annular sealing gasket 55 is fixedly connected to the inner side of the sealing plate 51. An annular groove 56 is opened on the outer surface of the connecting sleeve 52. Several mounting holes communicating with the inside of the annular groove 56 are opened at one end of the connecting sleeve 52, and bolt fasteners 57 are provided in each of the mounting holes. An annular sealing port is opened on the inner surface of one end of the connecting sleeve 52, and a sealing ring 511 is provided in the annular sealing port.

[0047] By installing a connecting sleeve 52 at one end of the pipe 1, the two connecting sleeves 52 on the two sets of pipes 1 can be locked and installed by a number of bolts and fasteners 57, thereby forming an assembly of multiple pipes 1. Moreover, the sealing ring 511 at the annular sealing port can seal the connection between the two connecting sleeves 52, ensuring the sealing effect of the assembly connection.

[0048] The sealing plate 51 is installed with the connecting sleeve 52 to block one end of the tube 1, preventing excessive loss of nutrient solution inside the tube 1. Moreover, the tube 1 can be cleaned by removing and installing the sealing plate 51.

[0049] See attached document Figure 8-9A number of magnet plates 58 are fixedly connected to the outer surface of one end of the connecting sleeve 52. An annular sleeve 59 for blocking the annular groove 56 is slidably connected to the outer surface of the connecting sleeve 52. An annular metal plate 510 that is attracted to the number of magnet plates 58 is fixedly connected to one end of the annular sleeve 59.

[0050] By sliding one side of the annular sleeve 59, the connection position can be sealed and blocked to prevent corrosion of the sealing component 5 due to its long-term underground location, which would affect the subsequent disassembly and assembly of the sealing component 5. The magnetic plate 58 can be used to attract the metal plate 510 at one end of the annular sleeve 59, thereby ensuring the stability of the protection provided by the annular sleeve 59.

[0051] See attached document Figure 4 The water-driven assembly 11 includes a cylinder 111 fixedly installed on the outer surface of the inlet pipe 8. A constricted tube 112 is installed inside the inlet pipe 8, and a one-way valve 115 is installed on the constricted tube 112. The top of one side of the cylinder 111 is connected to the inside of the inlet pipe 8 through an extraction tube, and the bottom of the cylinder 111 is connected to the inside of the inlet pipe 8 through an outlet tube. The other end of the extraction tube and the other end of the outlet tube are located at the top and bottom of the constricted tube 112, respectively.

[0052] By injecting water or fertilizer into the inlet pipe 8, the liquid inside the inlet pipe 8 can enter the lower part of the inlet pipe 8 through the constriction pipe 112, and finally enter the nutrient tank inside the through pipe 1, thus forming the replenishment of nutrient solution for fruit trees. The one-way valve 115 is used to control the constriction pipe 112 in one direction.

[0053] See attached document Figure 4 The cylinder 111 is internally sealed and slidably connected with a piston plate 113. A pressing rod 114 is fixedly connected to the top of the piston plate 113. The top end of the pressing rod 114 extends to the top of the cylinder 111, and a sealing sleeve is provided between the pressing rod 114 and the cylinder 111.

[0054] By driving the pressing rod 114 up and down with the hand, the piston plate 113 can be driven up and down. The downward movement of the piston plate 113 can squeeze the liquid inside the cylinder 111, so that the liquid can quickly enter the bottom of the liquid inlet pipe 8 through the outlet pipe, and then quickly enter the inside of the through pipe 1, preventing the through pipe 1 from having too much sludge, which would make it difficult to inject nutrient solution into the through pipe 1.

[0055] The upward movement of the piston plate 113 creates a negative pressure at the bottom of the cylinder 111. This negative pressure inside the cylinder 111 creates a negative pressure at the bottom of the inlet pipe 8. This increases the force of the nutrient solution above the inlet pipe 8 entering the lower part through the constricted tube 112, further improving the nutrient solution injection effect. It has a good liquid driving function and improves the nutrient solution replenishment effect.

[0056] A method for using a water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees includes the following steps:

[0057] S1. During fruit tree cultivation, the entire pipe 1 is laid flat in the planting row of the fruit trees at a spacing of 80-120cm and buried at a depth of 50cm. The pipe 1 is kept horizontal, and the two liquid inlet pipes 8 on the pipe 1 protrude 30cm above the ground. According to the fertilizer requirements of different fruit tree varieties, during the vegetative growth period of the fruit trees, the corresponding components and concentrations of aqueous solution are added at any time to form an irrigation or fertilization effect. By adding water and prepared nutrient solution to the nutrient trough, the fruit tree roots can accurately absorb the nutrient solution and water after entering the artificial nutrient trough, thus achieving the effect of precise irrigation and fertilization.

[0058] S2. When frost protection is required, add a certain amount of water to the nutrient tank 30-40 days before the spring flowering period. Since the temperature 50cm below the ground is below zero at that time, the added water will freeze. Then cover the soil surface at that location with a film to protect it from the outside temperature. This will keep the root system of the fruit tree at a low temperature of 40-50cm, thereby delaying the flow of sap in the fruit tree and delaying the flowering period by 7-10 days. After the frost damage, add nutrient water to the nutrient tank to thaw the previously frozen water, promoting the growth of the fruit tree roots and promoting the flowering of the fruit tree.

[0059] S3. After using the device for 1-2 years, when the nutrient tank becomes clogged due to the death of fine roots, one end of the through pipe 1 can be dug open, the sealing plate 51 at that location can be removed, and water can be poured in through the liquid inlet pipe 8 to completely flush away the impurities in the nutrient tank.

[0060] Example 2: The difference from Example 1 is that;

[0061] See attached document Figure 6-7 The installation component 6 includes a sleeve 61 fixedly connected to the through pipe 1 and an insertion sleeve 62 fixedly connected to the bottom end of the inlet pipe 8. An annular plate 63 is fixedly connected to the inner surface of the sleeve 61, and an annular notch is opened at the top of the annular plate 63. A sealing gasket 64 is provided inside the annular notch. A rotating sleeve 65 is rotatably connected to the outer surface of the insertion sleeve 62, and several locking elements are provided between the rotating sleeve 65 and the sleeve 61.

[0062] The annular plate 63 is used to limit the insertion end of the insertion sleeve 62, and the sealing gasket 64 inside the annular notch improves the sealing performance of the connection between the insertion sleeve 62 and the sleeve 61, thereby preventing leakage during the injection of water or fertilizer.

[0063] The locking component includes several L-shaped locking holes 66 opened at the bottom of the rotating sleeve 65 and several protrusions 67 fixed to the outer surface of the sleeve 61. Several limiting blocks 68 are hinged to the outer surface of the rotating sleeve 65, and several U-shaped blocks 69 are fixedly connected to the outer surface of the sleeve 61.

[0064] By inserting the bottom end of the insertion sleeve 62 into the inside of the sleeve 61, during the insertion process, the protrusion 67 on the sleeve 61 is inserted into the corresponding L-shaped locking port 66. With the rotation of the rotating sleeve 65, the protrusion 67 can be moved to one side of the L-shaped locking port 66, thus locking the insertion sleeve 62 and the sleeve 61. Finally, by moving several limiting blocks 68 downward in a fan shape, the bottom of the limiting blocks 68 can be moved into the inside of the U-shaped block 69, thus forming a rotational lock, thereby ensuring the installation of the insertion sleeve 62 and the sleeve 61. The reverse operation can form disassembly. It not only has a quick disassembly and assembly function, but also does not require the use of disassembly and assembly tools, further improving the convenience of operation, and ensuring the stability of the liquid inlet tube 8 installation.

[0065] Example 3: The difference from Example 1 is that;

[0066] See attached document Figure 5 An annular pad 7 is fixedly connected to the inner surface of the feed nozzle 9. Several T-shaped blocks 13 are fixedly connected to the top of the annular pad 7. Several insertion holes 14 are opened on the outer surface of the grid plate 10, and a locking port 12 is opened on one side of each of the several insertion holes 14.

[0067] The annular pad 7 is used to support the grid plate 10 located inside the feed nozzle 9. During installation, the grid plate 10 is placed on top of the annular pad 7. The T-block 13 is inserted into the hole 14 to pass through the grid plate 10. With the rotation of the grid plate 10, the T-block 13 can be moved to the position of the locking port 12 to form a lock. Thus, the grid plate 10 can be installed quickly without the need for disassembly tools, which improves the convenience of disassembly and assembly.

[0068] The inlet 9 not only facilitates the convenient injection of water or fertilizer by staff, but also increases the area covered by rain and improves the rainwater reception effect. The grid plate 10 can filter fallen leaves from fruit trees and prevent blockage of the liquid inlet pipe.

[0069] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] 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 water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees, comprising a through pipe (1) buried at a spacing of 80-120 cm between planting rows of fruit trees and a depth of 50 cm, characterized in that: The inside of the pipe (1) is configured as a nutrient tank; the outer surface of the pipe (1) is provided with several absorption holes (2) for draining water and fertilizer from the inside of the pipe (1); the top of the pipe (1) is provided with a layer of sand and gravel (3) and kraft paper (4) for covering the several absorption holes (2); both ends of the pipe (1) are provided with sealing components (5); the top of the pipe (1) is provided with two mounting components (6); the pipe (1) is equipped with two mounting components (6). The system is equipped with inlet pipes (8) for adding water and fertilizer into the pipe (1). The top of each of the two inlet pipes (8) is fixedly connected to a feed nozzle (9), and a grid plate (10) is detachably installed inside each of the two feed nozzles (9). Each of the two inlet pipes (8) is equipped with a water-driven assembly (11) for squeezing and driving the water and fertilizer inside the inlet pipe (8). The feed nozzle (9) is used to increase the area of ​​water spraying. The grid plate (10) is used to filter fallen leaves from the fruit trees to prevent the inlet pipes from becoming clogged. An annular pad (7) is fixedly connected to the inner surface of the feed nozzle (9). Several T-shaped blocks (13) are fixedly connected to the top of the annular pad (7). Several insertion holes (14) are opened on the outer surface of the grid plate (10), and a locking port (12) is opened on one side of each insertion hole (14). The annular pad (7) is used to support the grid plate (10) located inside the feed nozzle (9). By placing the grid plate (10) on the top of the annular pad (7) and inserting the T-shaped blocks (13) into the holes (14), the T-shaped blocks (13) can be moved to the position of the locking port (12) by rotating the grid plate (10) to form a lock. The sealing assembly (5) includes a sealing plate (51) and a connecting sleeve (52) fixedly connected to one end of the through pipe (1). Several bolt rods (53) are fixedly connected to the inner surface of the sealing plate (51), and nuts (54) are threaded onto the bolt rods (53). An annular sealing gasket (55) is fixedly connected to the inner surface of the sealing plate (51). An annular groove (56) is formed on the outer surface of the connecting sleeve (52). Several mounting holes communicating with the inside of the annular groove (56) are formed at one end of the connecting sleeve (52). Several mounting holes are provided with bolt fasteners (57), an annular sealing port is provided on the inner surface of one end of the connecting sleeve (52), and a sealing ring (511) is provided in the annular sealing port. Several magnet plates (58) are fixedly connected to the outer surface of one end of the connecting sleeve (52), and an annular sleeve (59) for shielding the annular groove (56) is slidably connected to the outer surface of the connecting sleeve (52). An annular metal plate (510) that is attracted to several magnet plates (58) is fixedly connected to one end of the annular sleeve (59). The water-driven assembly (11) includes a cylinder (111) fixedly installed on the outer surface of the inlet pipe (8). A constricted tube (112) is installed inside the inlet pipe (8), and a one-way valve (115) is installed on the constricted tube (112). The top of one side of the cylinder (111) is connected to the inside of the inlet pipe (8) through a extraction tube, and the bottom of the cylinder (111) is connected to the inside of the inlet pipe (8) through a discharge tube. The other end of the extraction tube and the other end of the discharge tube are located at the top and bottom of the constricted tube (112), respectively. The cylinder (111) is internally sealed and slidably connected with a piston plate (113), and a pressing rod (114) is fixedly connected to the top of the piston plate (113). The top end of the pressing rod (114) extends to the top of the cylinder (111), and a sealing sleeve is provided between the pressing rod (114) and the cylinder (111). By moving the piston plate (113) downward, the liquid inside the cylinder (111) can be squeezed, so that the liquid can quickly enter the bottom of the inlet pipe (8) through the outlet pipe, and then quickly enter the inside of the through pipe (1). The upward movement of the piston plate (113) creates a negative pressure at the bottom of the cylinder (111). The negative pressure inside the cylinder (111) creates a negative pressure at the bottom of the inlet pipe (8), increasing the force of the nutrient solution above the inlet pipe (8) entering the lower part through the constricted tube (112).

2. The water-saving, fertilizer-conserving, and frost-resistant cultivation device for fruit trees according to claim 1, characterized in that: The installation assembly (6) includes a sleeve (61) fixedly connected to the through pipe (1) and an insertion sleeve (62) fixedly connected to the bottom end of the inlet pipe (8). An annular plate (63) is fixedly connected to the inner surface of the sleeve (61), and an annular notch is opened at the top of the annular plate (63). A sealing gasket (64) is provided inside the annular notch. A rotating sleeve (65) is rotatably connected to the outer surface of the insertion sleeve (62), and several locking elements are provided between the rotating sleeve (65) and the sleeve (61).

3. The water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees according to claim 2, characterized in that: The locking component includes several L-shaped locking holes (66) opened at the bottom of the rotating sleeve (65) and several protrusions (67) fixed to the outer surface of the sleeve (61). Several limiting blocks (68) are hinged to the outer surface of the rotating sleeve (65), and several U-shaped blocks (69) are fixedly connected to the outer surface of the sleeve (61).

4. A method of using the water-saving, fertilizer-retaining, and frost-resistant cultivation device for fruit trees according to any one of claims 1-3, characterized in that, Includes the following steps: S1. When cultivating fruit trees, the entire pipe (1) is laid flat in the fruit tree planting row with a spacing of 80-120 cm and a burial depth of 50 cm. The pipe (1) is kept horizontal and the two liquid inlet pipes (8) on the pipe (1) are exposed 30 cm above the ground. According to the fertilizer requirements of different fruit tree varieties, the corresponding components and concentrations of aqueous solution are added at any time during the vegetative growth period of the fruit trees to form the effect of irrigation or fertilization. S2. When frost protection is required, add a certain amount of water to the nutrient tank 30-40 days before the spring flowering period. Since the temperature 50 cm underground is below zero at that time, the added water will freeze. Then cover the soil surface at that location with a film to protect it from the outside temperature. This will keep the fruit tree roots at a low temperature of 40-50 cm, thus delaying the flow of sap in the fruit tree and delaying the flowering period by 7-10 days. After the frost damage, add nutrient water to the nutrient tank to thaw the previously frozen water, promoting the growth of the fruit tree roots and promoting the flowering of the fruit tree. S3. After using the device for 1-2 years, when the nutrient tank becomes clogged due to the death of fine roots, dig open one end of the tube (1), remove the sealing plate (51) at that location, and then fill the nutrient tank with water through the liquid inlet pipe (8) to rinse all the impurities in the nutrient tank clean.

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