A fruit tree deep fertilizer device suitable for agricultural ecology and a control method

Abstract

The present application relates to the field of agricultural planting and fertilization technology, in particular to a fruit tree deep fertilization device suitable for agricultural ecology and a control method, comprising a mobile vehicle, a fertilizer storage tank and a fertilization assembly, the fertilization assembly comprising two arc-shaped frames, a plurality of deep fertilization heads, a plurality of fertilization translation slide rails and a plurality of fertilization lifting components, the deep fertilization heads are adjusted forward and backward by the fertilization translation slide rails to avoid large roots; at this time, the fertilization lifting components are started to drive the deep fertilization heads to move downward and rotate, and then drill into the soil, and then the corresponding depth is adjusted according to the needs of different fruit trees; finally, the fertilizer storage tank inputs fertilizer to the deep fertilization heads and discharges, achieving the effect of deep fertilization; thus, the operator can observe the root distribution of the fruit tree on site, and then flexibly adjust the depth and front and rear position of fertilization, thereby ensuring the fertilization effect and avoiding damage to the large root of the fruit tree when digging, which is more suitable for deep fertilization of fruit trees.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting and fertilization technology, and in particular to a deep fertilizer applicator and control method for fruit trees suitable for agricultural ecology. Background Technology

[0002] In traditional fruit tree fertilization, fruit farmers need to manually dig holes, fill fertilizer, and cover the soil to complete the fertilization of a single tree. Due to the low efficiency of manual operation, fruit tree fertilizer applicators are now used. These applicators are designed with arc-shaped slots that fit around the outside of the fruit tree. By rotating the handle, the applicator rotates around the tree, allowing the bag to be manually dug into the hole. At the same time, the fertilizer discharge device opens to discharge waste. Finally, a soil covering device is placed behind the applicator and fills the hole by following the movement of the applicator. This eliminates the need for manual operation and significantly improves operational efficiency.

[0003] In the aforementioned prior art, although rotating around the fruit tree can improve fertilization efficiency, the structure of the prior art cannot be adjusted in depth or forward and backward. The fertilization position can only be fixed and rotated around the fruit tree as the center. As a result, it is not possible to flexibly adjust the depth of fertilization on the fruit tree, which means that most of the roots and stems cannot be avoided. Fertilizer is prone to frequent contact with the roots and stems of the fruit tree, causing significant damage to them. Summary of the Invention

[0004] The purpose of this invention is to provide a deep fertilizer applicator and control method for fruit trees suitable for agricultural ecology. This invention solves the problem that although existing technologies can improve fertilization efficiency by rotating around the fruit tree, their structures cannot be adjusted for depth or forward / backward movement. The fertilization position can only be fixed around the fruit tree as the center of rotation. This makes it impossible to flexibly adjust the depth of fertilization, resulting in the inability to avoid most of the roots and stems, and frequent contact between the fertilizer and the roots and stems, causing significant damage.

[0005] To achieve the above objectives, the present invention provides a deep fertilizer applicator for fruit trees suitable for agricultural ecology, comprising a mobile vehicle, a fertilizer storage tank, and a fertilizer application assembly, wherein the fertilizer storage tank is disposed above the mobile vehicle; The fertilization assembly includes two arc-shaped frames, multiple deep fertilization heads, multiple fertilization translation slides, and multiple fertilization lifting components. One end of each of the two arc-shaped frames is rotatably connected. The multiple fertilization translation slides are sequentially arranged below the corresponding arc-shaped frames. The multiple deep fertilization heads are respectively arranged on the corresponding fertilization translation slides, and the multiple fertilization lifting components are respectively arranged on the corresponding deep fertilization heads.

[0006] The fertilization assembly further includes an operation panel, two fertilizer conveying units, multiple casters, two locking units, a fixed convex plate, and a rotating concave plate. The operation panel is located on one side of the mobile vehicle. The two fertilizer conveying units are respectively located above the corresponding arc-shaped frames. The multiple casters are sequentially located below the corresponding arc-shaped frames. The two arc-shaped frames are connected to the mobile vehicle through the corresponding locking units. The docking unit is located on the mobile vehicle. The fixed convex plate is fixedly connected to the corresponding arc-shaped frame. The rotating concave plate is rotatably connected to the other end of the corresponding arc-shaped frame. The rotating concave plate and the fixed convex plate are mutually adapted.

[0007] The deep fertilization head includes a sliding plate, a lifting pipe, a fertilization housing, a rotating sleeve, multiple digging blades, a digging drive mechanism, and an electric ball valve. The sliding plate is slidably connected to the fertilization translation rail, the lifting pipe is slidably connected to the sliding plate, the fertilization lifting component is located above the sliding plate, the output end of the fertilization lifting component is fixedly connected to the lifting pipe, the fertilization housing is connected to the lower part of the lifting pipe, the electric ball valve is located inside the fertilization housing, the rotating sleeve is rotatably connected to the fertilization housing, the multiple digging blades are sequentially arranged outside the rotating sleeve, and the digging drive mechanism is located inside the fertilization housing.

[0008] The hole-digging drive mechanism includes a rack, multiple hole-digging drive components, and multiple gears. The rack is fixedly connected to the inner wall of the rotating sleeve. The multiple hole-digging drive components are sequentially arranged inside the fertilizer housing. The output ends of the multiple hole-digging drive components are respectively fixedly connected to the corresponding gears. The gears mesh with the rack.

[0009] The fertilizer conveying unit includes a pump body, a first telescopic hose, a transfer chamber, and multiple second telescopic hoses. The pump body is located inside the fertilizer storage tank, and the transfer chamber is located above the arc-shaped frame. The two ends of the first telescopic hose are respectively connected to the transfer chamber and the pump body, and the two ends of the multiple second telescopic hoses are respectively connected to the transfer chamber and the corresponding lifting pipe.

[0010] The locking unit includes a fixed U-shaped frame, a movable U-shaped frame, a locking telescopic rod, and a locking spring. The fixed U-shaped frame is located outside the arc-shaped frame, the movable U-shaped frame is located on one side of the mobile vehicle, the two ends of the locking telescopic rod are fixedly connected to one side of the fertilizer storage box and the movable U-shaped frame, respectively, and the two ends of the locking spring are movably connected to one side of the fertilizer storage box and the movable U-shaped frame, respectively. The locking spring is sleeved on the outside of the locking telescopic rod.

[0011] The fertilization component further includes multiple translation limiting units, which are respectively disposed inside the corresponding fertilization translation slide rail; The translation limiting unit includes a rotating push-pull rod, a push-pull handle, multiple limiting grooves, and two rebound limiting mechanisms. The rotating push-pull rod is rotatably connected to the sliding plate. One end of the rotating push-pull rod passes through the fertilization translation slide rail and is fixedly connected to the push-pull handle. The multiple limiting grooves are sequentially arranged inside the fertilization translation slide rail, and the two rebound limiting mechanisms are symmetrically arranged on the rotating push-pull rod.

[0012] The rebound limiting mechanism includes a rebound chamber, a limiting wedge, a limiting spring, a limiting telescopic rod, a linkage rod, and multiple linkage return springs. The rebound chamber is disposed outside the rotating push-pull rod. The limiting wedge is slidably connected to the rebound chamber and is adapted to the limiting groove. Both ends of the limiting telescopic rod are fixedly connected to the inner walls of the limiting wedge and the rebound chamber, respectively. Both ends of the limiting spring are movably connected to the inner walls of the limiting wedge and the rebound chamber, respectively. The limiting spring is sleeved outside the limiting telescopic rod. The linkage rod is slidably connected to the rotating push-pull rod and is located inside the rotating push-pull rod. One end of the linkage rod is fixedly connected to one side of the limiting wedge, and the other end of the linkage rod passes through the rotating push-pull rod and is slidably connected to the push-pull handle. Both ends of the multiple linkage return springs are movably connected to the inner wall of the push-pull handle and the linkage rod, respectively.

[0013] The fertilization assembly also includes multiple backfilling units, which are symmetrically arranged on both sides of the corresponding depth fertilization head. The backfilling unit includes an electric slide rail, two backfilling lifting components, a scraper, rollers, and a pressure sensor. The electric slide rail is located below the sliding plate. Both backfilling lifting components are slidably connected to the electric slide rail. The scraper and the roller are respectively located at the output end of the corresponding backfilling lifting component. The pressure sensor is located between the roller and the backfilling lifting component.

[0014] This invention also provides a method for controlling a deep fertilizer applicator for fruit trees suitable for agricultural ecology, which uses the aforementioned deep fertilizer applicator for fruit trees suitable for agricultural ecology and includes the following steps: Push the mobile vehicle to the fruit trees that need fertilization; Move the arc-shaped frame and fit it over the outside of the fruit tree; Based on the distribution of the large rootstocks of the fruit trees exposed in the soil, the deep fertilization head is adjusted back and forth using the fertilization sliding rail to avoid the large rootstocks. Operate the control panel to activate the fertilizer lifting component, which will drive the deep fertilizer head to move down and rotate, thereby drilling into the soil. The depth can be adjusted according to the needs of different fruit trees. The pump body inputs fertilizer into the deep fertilization head and discharges it, achieving the effect of deep fertilization.

[0015] This invention discloses a deep fertilizer applicator and control method for fruit trees suitable for agricultural ecology. The method involves: pushing a mobile vehicle to the fruit tree requiring fertilization; moving and mounting an arc-shaped frame around the fruit tree; observing the distribution of the large rootstocks exposed in the soil; adjusting the deep fertilizer head back and forth using the fertilization sliding rail to avoid the large rootstocks; activating the fertilization lifting component to lower and rotate the deep fertilizer head, allowing it to penetrate the soil; adjusting the depth according to the needs of different fruit trees; and finally, the fertilizer storage box inputting fertilizer into the deep fertilizer head and discharging it, achieving deep fertilization. This allows operators to flexibly adjust the fertilization depth and position based on observation of the fruit tree rootstock distribution, ensuring fertilization effectiveness while avoiding damage to the large rootstocks during digging, making it more suitable for deep fertilization of fruit trees. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of the deep fertilizer applicator for fruit trees applicable to agricultural ecology according to the present invention.

[0018] Figure 2 This is a cross-sectional view of the fruit tree deep fertilizer applicator of the present invention, applicable to agricultural ecology.

[0019] Figure 3 This is a schematic diagram of the structure of the fertilizer application component of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the deep fertilization head and the fertilization translation slide rail of the present invention.

[0021] Figure 5 This is a cross-sectional view of the deep fertilizer applicator of the present invention.

[0022] Figure 6 This is the invention Figure 5 Enlarged view of the local structure at point A.

[0023] Figure 7 This is a diagram of the internal structure of the fertilizer application sliding rail of the present invention.

[0024] Figure 8 This is a cross-sectional view of the rotating push-pull rod of the present invention.

[0025] Figure 9 This is a cross-sectional view of the springback limiting mechanism of the present invention.

[0026] Figure 10 This is a schematic diagram of the hole-digging drive mechanism of the present invention.

[0027] Figure 11 This is a flowchart of the steps of the fruit tree deep fertilizer control method applicable to agricultural ecology of the present invention.

[0028] 1-Mobile vehicle, 2-Fertilizer storage box, 3-Arc-shaped frame, 4-Fertilizer application sliding rail, 5-Fertilizer application lifting component, 6-Operating panel, 7-Wheel casters, 8-Fixed convex plate, 9-Rotating concave plate, 10-Sliding plate, 11-Lifting pipe, 12-Fertilizer outer shell, 13-Rotating sleeve, 14-Digging blade, 15-Electric ball valve, 16-Rack and pinion, 17-Digging drive component, 18-Gear, 19-Pump body, 20-First telescopic hose, 21-Transfer compartment, 2 2-Second telescopic hose, 23-Fixed U-shaped frame, 24-Moving U-shaped frame, 25-Locking telescopic rod, 26-Locking spring, 27-Rotating push-pull rod, 28-Push-pull handle, 29-Limiting groove, 30-Return chamber, 31-Limiting inclined block, 32-Limiting spring, 33-Limiting telescopic rod, 34-Linkage rod, 35-Linkage reset spring, 36-Electric slide rail, 37-Backfilling lifting component, 38-Scraper, 39-Roller, 40-Pressure sensor. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] Please see Figures 1 to 10This invention provides a deep fertilizer applicator for fruit trees suitable for agricultural ecology, comprising a mobile vehicle 1, a fertilizer storage tank 2, and a fertilization assembly. The fertilization assembly includes two arc-shaped frames 3, multiple deep fertilization heads, multiple fertilization translation rails 4, and multiple fertilization lifting components 5. The fertilization assembly also includes an operation panel 6, two fertilizer conveying units, multiple casters 7, two locking units, a fixing convex plate 8, and a rotating concave plate 9. Each deep fertilization head includes a sliding plate 10, a lifting pipe 11, a fertilizer housing 12, a rotating sleeve 13, multiple digging blades 14, a digging drive mechanism, and an electric ball valve 15. The digging drive mechanism includes a rack 16, multiple digging drive components 17, and multiple gears 18. The fertilizer conveying unit includes a pump body 19. The first telescopic hose 20, the transfer chamber 21, and multiple second telescopic hoses 22 are included. The locking unit includes a fixed U-shaped frame 23, a movable U-shaped frame 24, a locking telescopic rod 25, and a locking spring 26. The fertilization assembly also includes multiple translational limiting units, each including a rotating push-pull rod 27, a push-pull handle 28, multiple limiting grooves 29, and two rebound limiting mechanisms. Each rebound limiting mechanism includes a rebound chamber 30, a limiting inclined block 31, a limiting spring 32, a limiting telescopic rod 33, a linkage rod 34, and multiple linkage reset springs 35. The fertilization assembly also includes multiple backfilling units, each including an electric slide rail 36, two backfilling lifting components 37, a scraper 38, rollers 39, and a pressure sensor 40.

[0031] The fertilizer storage box 2 is positioned above the mobile vehicle 1. Two arc-shaped frames 3 are rotatably connected at one end. Multiple fertilizer application sliding rails 4 are sequentially positioned below the corresponding arc-shaped frames 3. Multiple deep fertilizer application heads are respectively positioned on the corresponding fertilizer application sliding rails 4. Multiple fertilizer lifting components 5 are respectively positioned on the corresponding deep fertilizer application heads. The mobile vehicle 1 is pushed to the fruit tree requiring fertilization. The arc-shaped frames 3 are moved and fitted over the fruit tree. Based on observation of the distribution of large rootstocks exposed in the soil, the deep fertilizer application heads are adjusted back and forth using the fertilizer application sliding rails 4 to avoid the large rootstocks. At this time, the fertilizer lifting components 5 are activated, causing the deep fertilizer application heads to move downwards and rotate, thus penetrating the soil. The depth is adjusted according to the needs of different fruit trees. Finally, the fertilizer storage box 2 inputs fertilizer into the deep fertilizer application head and discharges it, achieving the deep fertilization effect. Furthermore, the fertilizer lifting components 5 are electric sliding rails 36.

[0032] Secondly, the operation panel 6 is located on one side of the mobile vehicle 1, the two fertilizer conveying units are respectively located above the corresponding arc frame 3, the multiple casters 7 are sequentially located below the corresponding arc frame 3, the two arc frames 3 are connected to the mobile vehicle 1 through the corresponding locking unit, the fixed protrusion 8 is fixedly connected to the other end of the corresponding arc frame 3, the rotating concave plate 9 is rotatably connected to the other end of the corresponding arc plate, and the rotating concave plate 9 and the fixed protrusion 8 are mutually adapted. The operation panel 6 allows for remote control of various devices, enabling staff to perform fertilization operations. The fertilizer conveying unit transports waste from the fertilizer storage box 2 to the deep fertilization head, which then flows into the soil. The casters 7 facilitate the movement of the arc-shaped frame 3, and the locking unit locks the arc-shaped frame 3 onto the mobile vehicle 1 when not fertilizing, allowing it to move with the vehicle. When the arc-shaped frame 3 is fitted onto the outside of the fruit tree, the rotating concave plate 9 engages with the fixed convex plate 8 to limit the arc-shaped frame 3, preventing deviation and movement, and thus initiating deep fertilization.

[0033] Meanwhile, the sliding plate 10 is slidably connected to the fertilizer translation slide rail 4, the lifting pipe 11 is slidably connected to the sliding plate 10, the fertilizer lifting component 5 is disposed above the sliding plate 10, the output end of the fertilizer lifting component 5 is fixedly connected to the lifting pipe 11, the fertilizer housing 12 is connected to the lower part of the lifting pipe 11, the electric ball valve 15 is disposed inside the fertilizer housing 12, the rotating sleeve 13 is rotatably connected to the fertilizer housing 12, a plurality of hole-digging blades 14 are sequentially disposed outside the rotating sleeve 13, and the hole-digging drive mechanism is disposed inside the fertilizer housing 12. The sliding plate 10 is used to support the entire depth fertilization head. At the same time, the sliding plate 10 can move within the fertilization translation slide rail 4, thereby allowing the depth fertilization head to be adjusted back and forth. When lifting adjustment is required, the fertilization lifting component 5 is activated, which drives the lifting pipe 11 to slide down. At the same time, the digging drive mechanism is activated, which drives the rotating sleeve 13 to rotate. The digging blade 14 contacts the soil and then drills into the soil. Then, the electric ball valve 15 is activated to open the internal channel. At this time, the fertilizer delivery begins, achieving the effect of deep fertilization.

[0034] In addition, the rack 16 is fixedly connected to the inner wall of the rotating sleeve 13, and a plurality of digging drive components 17 are sequentially arranged inside the fertilizer housing 12. The output ends of the plurality of digging drive components 17 are respectively fixedly connected to the corresponding gears 18, and the gears 18 mesh with the rack 16. The digging drive component 17 is a self-locking motor. When the digging drive component 17 is activated, it drives the gears 18 to rotate, meshing with the rack 16, thereby driving the rotating sleeve 13 to rotate, and thus driving the digging blade 14 to rotate.

[0035] Then, the pump body 19 is installed inside the fertilizer storage tank 2, and the transfer chamber 21 is installed above the arc-shaped frame 3. The two ends of the first telescopic hose 20 are connected to the transfer chamber 21 and the pump body 19, respectively. The two ends of a plurality of second telescopic hoses 22 are connected to the transfer chamber 21 and the corresponding lifting pipe 11, respectively. When the pump body 19 is activated, fertilizer is drawn into the first telescopic hose 20, reaches the transfer chamber 21, and then travels through the second telescopic hoses 22 to the lifting pipe 11, ultimately completing deep fertilization.

[0036] Furthermore, the fixed U-shaped frame 23 is disposed outside the arc-shaped frame 3, and the movable U-shaped frame 24 is disposed on one side of the moving vehicle 1. The two ends of the locking telescopic rod 25 are fixedly connected to one side of the fertilizer storage box 2 and the movable U-shaped frame 24, respectively. The two ends of the locking spring 26 are movably connected to one side of the fertilizer storage box 2 and the movable U-shaped frame 24, respectively. The locking spring 26 is sleeved outside the locking telescopic rod 25. After fertilization, the rotating concave plate 9 is rotated to separate from the fixed convex plate 8, thereby causing the arc-shaped frame 3 to leave the fruit tree. Then, the movable U-shaped frame 24 is moved upwards, at which point the fixed U-shaped frame 23 is moved below the movable U-shaped frame 24. Then, the movable U-shaped frame 24 is released, and the locking spring 26 rebounds, causing the movable U-shaped frame 24 to move downwards to match the fixed U-shaped frame 23, thus locking the arc-shaped frame 3. In addition, as the movable U-shaped frame 24 moves, the locking telescopic rod 25 extends and retracts accordingly to maintain stability.

[0037] Furthermore, multiple translational limiting units are respectively disposed inside the corresponding fertilization translational slide rail 4; the rotating push-pull rod 27 is rotatably connected to the sliding plate 10, one end of the rotating push-pull rod 27 passes through the fertilization translational slide rail 4 and is fixedly connected to the push-pull handle 28, multiple limiting grooves 29 are sequentially disposed inside the fertilization translational slide rail 4, and two rebound limiting mechanisms are symmetrically disposed on the rotating push-pull rod 27. Pulling the push-pull handle 28 can drive the rotating push-pull rod 27 to move, thereby driving the sliding plate 10 to slide within the fertilization translational slide rail 4. When it moves to a suitable fertilization position, rotating the push-pull handle 28 drives the rotating push-pull rod 27 to rotate within the sliding plate 10, so that the rebound limiting mechanism matches the limiting groove 29, thereby achieving the limiting at that position, thus starting stable deep fertilization.

[0038] Thus, the spring return chamber 30 is disposed outside the rotating push-pull rod 27, the limiting inclined block 31 is slidably connected to the spring return chamber 30, the limiting inclined block 31 is adapted to the limiting groove 29, the two ends of the limiting telescopic rod 33 are fixedly connected to the inner wall of the limiting inclined block 31 and the spring return chamber 30 respectively, the two ends of the limiting spring 32 are movably connected to the inner wall of the limiting inclined block 31 and the spring return chamber 30 respectively, the limiting spring 32 is sleeved outside the limiting telescopic rod 33, the linkage rod 34 is slidably connected to the rotating push-pull rod 27 and located inside the rotating push-pull rod 27, one end of the linkage rod 34 is fixedly connected to one side of the limiting inclined block 31, the other end of the linkage rod 34 passes through the rotating push-pull rod 27 and is slidably connected to the push-pull handle 28, and the two ends of the plurality of linkage reset springs 35 are movably connected to the inner wall of the push-pull handle 28 and the linkage rod 34 respectively. The rebound chamber 30 supports the internal components. When the rotating push-pull rod 27 rotates, it drives the rebound chamber 30 to rotate, causing the inclined surface of the limiting block 31 to contact the limiting groove 29. Finally, the limiting block 31 retracts into the limiting groove 29. At this time, the limiting spring 32 acts as a stop, thereby limiting the sliding plate 10 and starting deep fertilization. After fertilization, hold the push-pull handle 28 and press the other end of the linkage rod 34. The linkage rod 34 then drives the limiting block 31 to move, and the limiting block 31 disengages from the limiting groove 29. Then, rotate the rotating push-pull rod 27 again to disengage the rebound chamber 30 from the limiting groove 29. After moving to the next suitable position, repeat the above limiting operation. In addition, when the limiting block 31 rebounds, the limiting telescopic rod 33 acts as a stabilizer. After releasing the linkage rod 34, the linkage reset spring 35 assists the linkage rod 34 in rebounding.

[0039] Finally, multiple backfilling units are symmetrically arranged on both sides of the corresponding deep fertilization head; the electric slide rail 36 is located below the sliding plate 10, and both backfilling lifting components 37 are slidably connected to the electric slide rail 36. The scraper 38 and the roller 39 are respectively located at the output end of the corresponding backfilling lifting component 37, and the pressure sensor 40 is located between the roller 39 and the backfilling lifting component 37. After fertilization, by operating the operation panel 6, the electric slide rail 36 is activated, driving the scraper 38 to move and scrape the soil around the fertilization pit for backfilling. Then, the backfilling lifting component 37 moves the scraper 38 upward and the roller 39 downward. Through the rolling of the roller 39, the backfilled soil is compacted. At the same time, the pressure sensor 40 can detect the pressure during rolling to ensure contact with the soil. In this way, the soil around the deep fertilization pit can be backfilled and compacted, preventing fertilizer loss and volatilization and protecting the soil structure.

[0040] When using a deep fertilizer applicator for fruit trees suitable for agricultural ecology according to this embodiment, the mobile vehicle 1 is pushed to the side of the fruit tree that needs fertilization; the arc-shaped frame 3 is moved and fitted onto the outside of the fruit tree; then, based on the observation of the distribution of the large rootstocks exposed in the soil, the push-pull handle 28 is pulled, which drives the rotating push-pull rod 27 to move, so that the sliding plate 10 slides within the fertilization translation rail 4, avoiding the large rootstocks and moving to a suitable fertilization position. At this time, the push-pull handle 28 is rotated, which drives the rotating push-pull rod 27 to rotate within the sliding plate 10, so that the rebound limiting mechanism and the limiting mechanism are engaged. The groove 29 is adapted to achieve the limit at this position; at this time, the fertilizer lifting component 5 is activated, which drives the deep fertilizer head to move down. At the same time, the hole-digging drive component 17 is activated, which drives the gear 18 to rotate and mesh with the rack 16, thereby driving the rotating sleeve 13 to rotate, thereby driving the hole-digging blade 14 to rotate and drill into the soil. Then, the corresponding depth is adjusted according to the needs of different fruit trees. Finally, the pump body 19 is activated, which pumps the fertilizer into the first telescopic hose 20, which reaches the transfer chamber 21, and then reaches the lifting pipe 11 through the second telescopic hose 22 to complete the deep fertilization. With the above-mentioned structural design, operators can flexibly adjust the depth and position of fertilization based on their observation of the root distribution of the fruit trees on site. This ensures the effectiveness of fertilization while avoiding damage to the large roots of the fruit trees when digging holes, making it more suitable for deep fertilization of fruit trees.

[0041] Please see Figure 11 The present invention also provides a method for controlling a deep fertilizer applicator for fruit trees suitable for agricultural ecology, comprising the following steps: S1: Push the mobile vehicle 1 to the side of the fruit tree that needs fertilization; S2: Move the arc-shaped frame 3 and place it over the outside of the fruit tree; S3: Based on the distribution of the large rootstocks of the fruit trees exposed in the soil, the depth fertilization head is adjusted back and forth using the fertilization sliding rail 4 to avoid the large rootstocks. S4: Operate the operation panel 6 to start the fertilizer lifting component 5, which drives the deep fertilizer head to move down and rotate, thereby drilling into the soil. The depth can be adjusted according to the needs of different fruit trees. S5: The pump body 19 inputs fertilizer into the deep fertilization head and discharges it to achieve the effect of deep fertilization.

[0042] The process involves: pushing the mobile vehicle 1 to the fruit tree that needs fertilization; moving the arc-shaped frame 3 and placing it over the fruit tree; observing the distribution of the large roots of the fruit tree exposed in the soil; adjusting the deep fertilization head back and forth using the fertilization sliding rail 4 to avoid the large roots; operating the control panel 6 to activate the fertilization lifting component 5, which moves the deep fertilization head down and rotates, thus drilling into the soil, adjusting the depth according to the needs of different fruit trees; and pumping the pump body 19 to input fertilizer into the deep fertilization head and discharge it, achieving the effect of deep fertilization.

[0043] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A deep fertilizer applicator for fruit trees suitable for agricultural ecology, comprising a mobile vehicle and a fertilizer storage tank, wherein the fertilizer storage tank is disposed above the mobile vehicle, characterized in that, It also includes fertilizer application components; The fertilization assembly includes two arc-shaped frames, multiple deep fertilization heads, multiple fertilization translation slide rails, and multiple fertilization lifting components. One end of each of the two arc-shaped frames is rotatably connected. The multiple fertilization translation slide rails are sequentially arranged below the corresponding arc-shaped frames. The multiple deep fertilization heads are respectively arranged on the corresponding fertilization translation slide rails. The multiple fertilization lifting components are respectively arranged on the corresponding deep fertilization heads. The deep fertilization head includes a sliding plate, a lifting pipe, a fertilization housing, a rotating sleeve, multiple digging blades, a digging drive mechanism, and an electric ball valve. The sliding plate is slidably connected to the fertilization translation rail, the lifting pipe is slidably connected to the sliding plate, the fertilization lifting component is located above the sliding plate, the output end of the fertilization lifting component is fixedly connected to the lifting pipe, the fertilization housing is connected to the lower part of the lifting pipe, the electric ball valve is located inside the fertilization housing, the rotating sleeve is rotatably connected to the fertilization housing, the multiple digging blades are sequentially arranged outside the rotating sleeve, and the digging drive mechanism is located inside the fertilization housing. The fertilization assembly also includes multiple translation limiting units, which are respectively disposed inside the corresponding fertilization translation slide rail; The translation limiting unit includes a rotating push-pull rod, a push-pull handle, multiple limiting grooves, and two rebound limiting mechanisms. The rotating push-pull rod is rotatably connected to the sliding plate. One end of the rotating push-pull rod passes through the fertilization translation slide rail and is fixedly connected to the push-pull handle. The multiple limiting grooves are sequentially arranged inside the fertilization translation slide rail, and the two rebound limiting mechanisms are symmetrically arranged on the rotating push-pull rod. The rebound limiting mechanism includes a rebound chamber, a limiting inclined block, a limiting spring, a limiting telescopic rod, a linkage rod, and multiple linkage return springs. The rebound chamber is disposed outside the rotating push-pull rod. The limiting inclined block is slidably connected to the rebound chamber and is adapted to the limiting groove. Both ends of the limiting telescopic rod are fixedly connected to the inner walls of the limiting inclined block and the rebound chamber, respectively. Both ends of the limiting spring are movably connected to the inner walls of the limiting inclined block and the rebound chamber, respectively. The limiting spring is sleeved outside the limiting telescopic rod. The linkage rod is slidably connected to the rotating push-pull rod and is located inside the rotating push-pull rod. One end of the linkage rod is fixedly connected to one side of the limiting inclined block, and the other end of the linkage rod passes through the rotating push-pull rod and is slidably connected to the push-pull handle. Both ends of the multiple linkage return springs are movably connected to the inner wall of the push-pull handle and the linkage rod, respectively. The fertilization assembly also includes multiple backfilling units, which are symmetrically arranged on both sides of the corresponding depth fertilization head; The backfilling unit includes an electric slide rail, two backfilling lifting components, a scraper, rollers, and a pressure sensor. The electric slide rail is located below the sliding plate. Both backfilling lifting components are slidably connected to the electric slide rail. The scraper and the roller are respectively located at the output end of the corresponding backfilling lifting component. The pressure sensor is located between the roller and the backfilling lifting component.

2. The deep fertilizer applicator for fruit trees suitable for agricultural ecology as described in claim 1, characterized in that, The fertilization assembly also includes an operation panel, two fertilizer conveying units, multiple casters, two locking units, a fixed convex plate, and a rotating concave plate. The operation panel is located on one side of the mobile vehicle. The two fertilizer conveying units are respectively located above the corresponding arc-shaped frames. The multiple casters are sequentially located below the corresponding arc-shaped frames. The two arc-shaped frames are connected to the mobile vehicle through the corresponding locking units. The fixed convex plate is fixedly connected to the other end of the corresponding arc-shaped frame. The rotating concave plate is rotatably connected to the other end of the corresponding arc-shaped frame. The rotating concave plate and the fixed convex plate are mutually adapted.

3. The deep fertilizer applicator for fruit trees suitable for agricultural ecology as described in claim 2, characterized in that, The hole-digging drive mechanism includes a rack, multiple hole-digging drive components, and multiple gears. The rack is fixedly connected to the inner wall of the rotating sleeve. The multiple hole-digging drive components are sequentially arranged inside the fertilizer housing. The output ends of the multiple hole-digging drive components are respectively fixedly connected to the corresponding gears. The gears mesh with the rack.

4. The deep fertilizer applicator for fruit trees suitable for agricultural ecology as described in claim 3, characterized in that, The fertilizer conveying unit includes a pump body, a first telescopic hose, a transfer chamber, and multiple second telescopic hoses. The pump body is located inside the fertilizer storage tank, and the transfer chamber is located above the arc-shaped frame. The two ends of the first telescopic hose are respectively connected to the transfer chamber and the pump body, and the two ends of the multiple second telescopic hoses are respectively connected to the transfer chamber and the corresponding lifting pipe.

5. The deep fertilizer applicator for fruit trees suitable for agricultural ecology as described in claim 4, characterized in that, The locking unit includes a fixed U-shaped frame, a movable U-shaped frame, a locking telescopic rod, and a locking spring. The fixed U-shaped frame is disposed outside the arc-shaped frame, the movable U-shaped frame is disposed on one side of the mobile vehicle, the two ends of the locking telescopic rod are fixedly connected to one side of the fertilizer storage box and the movable U-shaped frame, respectively, and the two ends of the locking spring are movably connected to one side of the fertilizer storage box and the movable U-shaped frame, respectively. The locking spring is sleeved on the outside of the locking telescopic rod.

6. A method for controlling a deep fertilizer applicator for fruit trees suitable for agricultural ecology, employing the deep fertilizer applicator for fruit trees as described in claim 5, characterized in that, Includes the following steps: Push the mobile vehicle to the fruit trees that need fertilization; Move the arc-shaped frame and fit it over the outside of the fruit tree; Based on the distribution of the large rootstocks of the fruit trees exposed in the soil, the deep fertilization head is adjusted back and forth using the fertilization sliding rail to avoid the large rootstocks. Operate the control panel to activate the fertilizer lifting component, which will drive the deep fertilizer head to move down and rotate, thereby drilling into the soil. The depth can be adjusted according to the needs of different fruit trees. The pump body inputs fertilizer into the deep fertilization head and discharges it, achieving the effect of deep fertilization.

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