An apparatus and method for fertilizing fruit trees

Abstract

A kind of fruit tree fertilization equipment and method, the present application relates to fruit tree planting technical field, utilize hinge between several fixed top plates;The bottom of each fixed top plate is fixed with fertilizer storage barrel;Material baffle is movably arranged in the lower port of fertilizer storage barrel using rotary drive mechanism;Dig hole cylinder is movably arranged below material baffle using lifting drive mechanism.Adopt multiple fixed top plates to realize adjustable connection using hinge, meet the needs of multiple hole digging, improve the scope of application;Fertilizer falls by using lifting drive mechanism to control dig hole cylinder to descend and dig hole, cooperate rotary drive mechanism to realize, again back to normal dig hole cylinder to realize soil backfilling, complete hole digging-fertilization-covering operation in whole process, improve efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fruit tree planting, in particular to a fruit tree fertilization equipment and method. BACKGROUND

[0002] There are many fertilization methods for fruit tree fertilization, such as ditching, spreading, hole digging, and ring fertilization. Hole digging is to dig holes around the fruit trees and put fertilizers in the holes. This method has the same effect as ring ditching, but it is not easy to damage the root system, and the fertilizer is very effective, so it is generally used in spring and summer. In order to avoid the "rootless area", when hole digging, it is necessary to distribute evenly and dig more holes, and at the same time, it is strictly forbidden to put too much fertilizer in each hole. Because more holes need to be dug, and each hole needs to be filled with fertilizer and backfilled soil, when facing artificial fertilization, more manpower and time are needed; and when facing the current many mechanized fertilization equipment, although it can dig multiple holes at one time, it solves the defect of large amount of manpower and time, but it cannot adjust the distance and position of hole digging according to the growth state of different fruit trees, therefore, there is an urgent need for a fertilization equipment that can solve the above problems. SUMMARY

[0003] The purpose of the present application is to overcome the defects and deficiencies of the prior art, and to provide a fruit tree fertilization equipment and method which can effectively solve the above-mentioned defects.

[0004] In order to achieve the above-mentioned purpose, the following technical scheme is adopted: it contains a plurality of fixed top plates; the fixed top plates are connected by hinges; it also contains:

[0005] Fertilizer storage barrels are fixed at the bottom of each fixed top plate;

[0006] A baffle plate is movably arranged at the lower end of the fertilizer storage barrel by a rotary drive mechanism;

[0007] A hole digging cylinder is movably arranged below the baffle plate by a lifting drive mechanism.

[0008] With the above design scheme, multiple fixed top plates are adjusted to the required hole digging shape as needed, and then the fertilizer is preloaded into the fertilizer storage barrel. The hole digging cylinder is controlled to descend by the lifting drive mechanism, and the hole is dug. The soil is lifted out by the hole digging cylinder under the action of its own cohesive force, and then the baffle plate is rotated together with the hole digging cylinder away from the fertilizer storage barrel by the rotary drive mechanism. The fertilizer in the fertilizer storage barrel falls into the hole, and then the rotary drive mechanism is controlled in the opposite direction to return the baffle plate and the hole digging cylinder. After returning, the hole digging cylinder can be manually knocked to loosen the internal soil and achieve backfilling.

[0009] Preferably, the bottom of the side wall of the fertilizer storage barrel is fixed with a touch rod, the hole digging cylinder is arranged in movable contact with the touch rod, and the touch rod is touched by the hole digging cylinder when the hole digging cylinder is returned to the normal position, so that the touch rod plays a certain knocking role on the hole digging cylinder, and the soil is loosened.

[0010] Preferably, the side wall of the fertilizer storage barrel is connected with a fertilizer feeding pipe in a penetrating manner, and the fertilizer feeding pipe is used for conveying fertilizer into the fertilizer storage barrel.

[0011] Preferably, the inner wall of the fertilizer storage barrel is connected with a fertilizer discharging hopper at the bottom, and the lower end of the fertilizer discharging hopper is arranged in movable contact with the material blocking plate, so as to converge and guide the discharge of the fertilizer.

[0012] Preferably, the lifting driving mechanism comprises:

[0013] a hole digging driving motor fixed on the fertilizer storage barrel;

[0014] a lead screw fixed on the output shaft of the hole digging driving motor;

[0015] a lead screw nut fixed on the hole digging cylinder, and the lead screw is threadedly connected with the lead screw nut in the lead screw nut;

[0016] a plurality of guide rods fixed at equal angles at the bottom of the material blocking plate and movably inserted into the cylinder wall of the hole digging cylinder.

[0017] Preferably, the rotating driving mechanism comprises:

[0018] a rotating connecting plate fixed on the material blocking plate, and the output shaft of the hole digging driving motor is movably arranged in the rotating connecting plate;

[0019] a plug-in shaft movably arranged in a plug-in slot formed in the rotating connecting plate, and the plug-in shaft is movably plugged with the output shaft of the hole digging driving motor;

[0020] a spring movably arranged in the plug-in slot, and the spring is sleeved on the plug-in shaft, and the two ends of the spring are fixed with the plug-in shaft and the inner wall of the plug-in slot, respectively;

[0021] an electromagnet fixed in the plug-in slot and movably magnetically attracted with the plug-in shaft, and the electromagnet is electrically connected with a power supply in an embedding slot formed in the material blocking plate.

[0022] When the hole digging driving motor is rotated in a forward direction to control the hole digging cylinder to descend, the electromagnet is magnetically attracted with the plug-in shaft by being electrified, and the plug-in shaft is separated from the output shaft of the hole digging driving motor; when the hole digging driving motor is reversed to control the hole digging cylinder and the material blocking plate to rotate, the electromagnet is de-energized to lose magnetism, the plug-in shaft loses the magnetic attraction force, and the plug-in shaft is inserted into the output shaft of the hole digging driving motor, so as to realize the butt joint of the rotating connecting plate and the hole digging driving motor.

[0023] Preferably, the inside of the hole digging cylinder is provided with a soil retaining mechanism, which comprises:

[0024] A shielding driving motor is fixed on the inner top wall of the hole digging cylinder, and the output shaft of the shielding driving motor is connected with the rotating shaft by a shaft coupling;

[0025] A shielding piece is connected to the lower end of the rotating shaft, which comprises:

[0026] A movable cover is fixed at one end of the lower end of the rotating shaft, and the other end is in movable contact with the inner wall of the hole digging cylinder;

[0027] A fixed cover is rotatably connected to the lower end of the rotating shaft by a bearing, and the other end is fixed to the inner wall of the hole digging cylinder;

[0028] A shaft seat is fixed in the groove between the movable cover and the fixed cover, and the shaft seat is symmetrically arranged in pairs;

[0029] The same roll is rotatably connected to the same group of shaft seats; the end of the roll in the movable cover is sleeved with a return spring, one end of the return spring is fixed to the shaft seat, and the other end is fixed to the roll;

[0030] The lower edge of the elastic shielding curtain is fixed to the roll in the fixed cover, and the elastic shielding curtain is wound around the roll in the movable cover, and the upper edge is fixed to the roll.

[0031] With the above design, when the hole digging cylinder is lowered to the bottom position and the soil is dug into its interior, the shielding driving motor is started to drive the movable cover to rotate, thereby driving the elastic shielding curtain to expand until the movable cover is located above the fixed cover again. At this time, the elastic shielding curtain will shield the soil in the hole digging cylinder, preventing it from loosening and falling before backfilling.

[0032] Preferably, the fixed top plates are connected by an adjustable fixing mechanism; the adjustable fixing mechanism comprises:

[0033] A T-shaped sliding block is slidingly clamped in a T-shaped sliding groove formed in the side wall of the fixed top plate;

[0034] A hinged seat is fixed to the side wall of the T-shaped sliding block;

[0035] A connecting shaft is rotatably connected in the hinged seat, and one end of the connecting shaft is arranged outside the hinged seat;

[0036] A screw rod is rotatably connected at one end of the connecting shaft; the threads of adjacent two screw rods are oppositely arranged;

[0037] Adjusting threaded sleeve, which is threadedly connected on two adjacent screw rods on adjacent fixed top plates.

[0038] With the above design, by rotating the adjusting threaded sleeve, the screw rods at both ends are displaced, and the screw rods pull two adjacent fixed top plates through the connecting shaft, the hinged seat and the T-shaped slider while moving, thereby changing the angle and positioning the position between the fixed top plates.

[0039] Compared with the prior art, the beneficial effects of the present application are:

[0040] 1. A plurality of fixed top plates are used to realize adjustable connection by hinges, meeting the needs of various hole digging and improving the application range.

[0041] 2. The hole digging cylinder is controlled to descend and dig holes by the lifting drive mechanism, and the fertilizer is dropped by the rotating drive mechanism, and then the hole digging cylinder is returned to realize soil backfilling, thereby completing the hole digging-fertilizing-covering operation and improving the efficiency.

[0042] 3. A plurality of hole digging cylinders are controlled independently, and the hole digging cylinders with appropriate spacing can be selected according to the fertilization needs to realize adjustable spacing.

[0043] 4. The angle adjustment and fixation between the plurality of fixed top plates are realized by the adjustable fixing mechanism, thereby improving the overall stability.

[0044] 5. The soil blocking mechanism is used to block the soil after hole digging, thereby avoiding the soil from falling off due to loosening before backfilling. DETAILED DESCRIPTION

[0045] Figure 1 is a structural schematic diagram of the present application.

[0046] Figure 2 is an axial sectional view of Figure 1 .

[0047] Figure 3 is an enlarged view of A part in Figure 2 .

[0048] Figure 4 is a sectional view of the soil blocking mechanism in the present application.

[0049] Figure 5 is a soil blocking state diagram of the soil blocking mechanism in the present application.

[0050] Figure 6 is a connection schematic diagram between the adjustable fixing mechanism and the fixed top plate in the present application.

[0051] Figure 7 is an enlarged view of B part in Figure 6 .

[0052] Figure 8 is a state diagram of example one.

[0053] Figure 9 is a state diagram of example two.

[0054] BRIEF DESCRIPTION OF DRAWINGS

[0055] fixed top plate 1, T-shaped sliding groove 1-1, fertilizer storage barrel 2, material blocking plate 3, embedded groove 3-1, hole digging cylinder 4, lead screw 5, nut seat 6, rotating connecting plate 7, insertion slot 7-1, hole digging driving motor 8, fertilizer feeding pipe 9, guide rod 10, insertion shaft 11, spring 12, electromagnet 13, power supply 14, shielding driving motor 15, rotating shaft 16, shielding piece 17, movable cover 17-1, fixed cover 17-2, winding roller 17-3, elastic shielding curtain 17-4, return spring 17-5, shaft seat 17-6, hinge 18, adjusting threaded sleeve 19, screw rod 20, T-shaped sliding block 21, hinged seat 22, connecting shaft 23, fertilizer discharge hopper 24, touch rod 25, support 26. DETAILED DESCRIPTION

[0056] The technical solutions in the present application will be described clearly and completely below with reference to the drawings. The preferred embodiments described in the description are only examples, and all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0057] As shown in Figures 1-7 , the present specific embodiment adopts the following technical solutions: it comprises a plurality of fixed top plates 1; adjacent fixed top plates 1 are rotatably connected by hinges 18 and are adjusted and fixed by adjustable fixing mechanisms; the adjustable fixing mechanism comprises an adjusting threaded sleeve 19, a screw rod 20, a T-shaped sliding block 21, a hinged seat 22 and a connecting shaft 23; the T-shaped sliding block 21 is slidingly clamped in a T-shaped sliding groove 1-1 formed in the side wall of the fixed top plate 1; the hinged seat 22 is fixed on the side wall of the T-shaped sliding block 21; the connecting shaft 23 is rotatably connected in the hinged seat 22 by a bearing, and the upper end of the connecting shaft 23 is arranged outside the hinged seat 22; one end of the screw rod 20 is rotatably connected to the upper end of the connecting shaft 23 by a bearing; the threads of adjacent screw rods 20 are oppositely arranged; the adjusting threaded sleeve 19 is threadedly connected to adjacent screw rods 20 on adjacent fixed top plates 1;

[0058] The fruit tree fertilizing device further comprises:

[0059] Fertilizer storage tank 2, with a fertilizer storage tank 2 fixed to the bottom of each fixed top plate 1; a contact rod 25 is fixed to the bottom of the side wall of the fertilizer storage tank 2; a fertilizer inlet pipe 9 is connected through the side wall of the fertilizer storage tank 2, which is a flexible pipe and connected to a fertilizer pump (not shown in the figure); used to transport fertilizer into the fertilizer storage tank 2; a fertilizer discharge hopper 24 (an electric discharge valve can be installed in the fertilizer discharge hopper 24) is connected to the bottom of the inner wall of the fertilizer storage tank 2, and the lower port of the fertilizer discharge hopper 24 is in contact with the baffle plate 3 to collect and guide the discharge of fertilizer;

[0060] A baffle plate 3 is movably mounted at the lower port of the fertilizer storage tank 2 via a rotary drive mechanism. The rotary drive mechanism includes a rotating connecting plate 7, a plug shaft 11, a spring 12, and an electromagnet 13. The rotating connecting plate 7 is detachably fixed to the baffle plate 3 with screws. The plug shaft 11 is movably mounted in a slot 7-1 within the rotating connecting plate 7. The spring 12 is movably mounted in the slot 7-1 and is sleeved on the plug shaft 11, with its two ends fixed to the plug shaft 11 and the inner wall of the slot 7-1, respectively. The electromagnet 13 is fixed in the slot 7-1 (the control ends of the electromagnet 13 are all externally connected to the fixed top plate 1, not shown in the figure), and is magnetically attracted to the plug shaft 11. The electromagnet 13 is electrically connected to a power supply 14 in the groove 3-1 within the baffle plate 3.

[0061] The digging cylinder 4 is movably positioned below the baffle plate 3 via a lifting drive mechanism, and its lower end has a blade-like structure. The digging cylinder 4 is in contact with the lower end of the contact rod 25. When the digging cylinder 4 returns to its original position, it contacts the contact rod 25, which exerts a certain knocking effect, loosening the soil. The lifting drive mechanism includes a lead screw 5, a lead screw nut 6, a digging drive motor 8, and a guide rod 10. The digging drive motor 8 is fixed to... On the fertilizer storage tank 2; the output shaft of the hole-digging drive motor 8 is movably inserted through the aforementioned rotating connecting plate 7; the output shaft of the hole-digging drive motor 8 is movably inserted into the aforementioned plug-in shaft 11; the lead screw 5 is fixed to the lower end of the output shaft of the hole-digging drive motor 8 by a coupling; the lead screw nut 6 is fixed on the hole-digging cylinder 4, and the lead screw 5 is threadedly connected to the lead screw nut in the lead screw nut nut 6; there are several guide rods 10, which are fixed at equal angles to the bottom of the baffle plate 3, and are all movably inserted into the cylinder wall of the hole-digging cylinder 4;

[0062] The inside of the hole digging cylinder 4 is provided with a soil blocking mechanism, which comprises a blocking driving motor 15, a rotating shaft 16 and a blocking piece 17; the blocking driving motor 15 is fixed on the inner top wall of the hole digging cylinder 4 (the blocking driving motor 15 is provided with a battery for power supply, and the control end thereof is externally connected with a lead wire arranged on the fixed top plate 1, which is not shown in the figure), and the output shaft of the blocking driving motor 15 is connected with the rotating shaft 16 by means of a shaft coupling; the blocking piece 17 is connected with the lower end of the rotating shaft 16, and the blocking piece 17 comprises:

[0063] A movable cover 17-1 is fixedly sleeved with one end of the rotating shaft 16, and the other end thereof is movably contacted with the inner wall of the hole digging cylinder 4; the side wall of the movable cover 17-2 towards the rotating direction (front side) is provided in a blade shape, which is convenient for cutting the soil during rotation;

[0064] A fixed cover 17-2 is rotatably connected with the lower end of the rotating shaft 16 by means of a bearing, and the other end thereof is fixed with the inner wall of the hole digging cylinder 4; the lower edge of the fixed cover 17-2 is provided in a blade shape, which is convenient for cutting the soil when the hole digging cylinder 4 is lowered to dig a hole;

[0065] A shaft seat 17-6 is symmetrically fixed in the groove penetrating through the movable cover 17-1 and the fixed cover 17-2;

[0066] A winding roller 17-3 is rotatably connected with the two shaft seats 17-6 in the same group; the end of the winding roller 17-3 located in the movable cover 17-1 is sleeved with a return spring 17-5, one end of which is fixed with the shaft seat 17-6, and the other end of which is fixed with the winding roller 17-3;

[0067] An elastic blocking curtain 17-4 is fixed with the lower edge thereof on the winding roller 17-3 located in the fixed cover 17-2, and the elastic blocking curtain 17-4 is wound on the winding roller 17-3 located in the movable cover 17-1, and the upper edge thereof is fixed with the winding roller 17-3.

[0068] The fertilization method of the embodiment is as follows:

[0069] According to the needs, the plurality of fixed top plates 1 are adjusted into the shape of the required hole digging (such as the straight line shape in Figure 8 and the circle in Figure 9 ), and the whole is placed at the position around the fruit tree where fertilization is required by means of the support 26; then the fertilizer inlet pipe 9 is connected with the fertilizer pump, the fertilizer pump is connected with the waste box (the waste box and the fertilizer pump can be externally connected, which is not shown in the figure), the fertilizer pump is started to pre-deliver the fertilizer into the fertilizer storage barrel 2;

[0070] Then, the hole digging driving motor 8 is started to rotate forward (at this time, the electromagnet 13 is energized to be magnetized, the plug-in shaft 11 is magnetically attracted, the plug-in shaft 11 is separated from the output shaft of the hole digging driving motor 8, so that when the output shaft of the hole digging driving motor 8 rotates, the rotating connecting plate 7 is not driven), the screw rod 5 is driven to rotate, at this time, the hole digging cylinder 4 is guided and driven by the guide rod 10 and the nut in the nut seat 6 to descend and insert into the soil around the fruit tree, and the hole digging is performed;

[0071] After the hole is dug, the hole digging driving motor 8 is turned off, and the shielding driving motor 15 is started to rotate forward, the movable cover 17-1 is rotated clockwise, so that the elastic shielding curtain 17-4 is unfolded, until the movable cover 17-1 is located above the fixed cover 17-2 again, at this time, the elastic shielding curtain 17-4 shields the soil in the hole digging cylinder 4, so that the soil does not loosen and fall before backfilling;

[0072] Then, the power supply 14 is cut off, so that the electromagnet 13 is de-energized and demagnetized, at this time, the plug-in shaft 11 loses the magnetic attraction force and is inserted into the output shaft of the hole digging driving motor 8 under the elastic force of the spring 12, so that the rotating connecting plate 7 is connected with the hole digging driving motor 8;

[0073] Then, the hole digging driving motor 8 is started to rotate forward (at this time, the electromagnet 13 is energized to be magnetized, the plug-in shaft 11 is magnetically attracted, the plug-in shaft 11 is separated from the output shaft of the hole digging driving motor 8, so that when the output shaft of the hole digging driving motor 8 rotates, the rotating connecting plate 7 is not driven), the screw rod 5 is driven to rotate, at this time, the hole digging cylinder 4 is guided and driven by the guide rod 10 and the nut in the nut seat 6 to descend and insert into the soil around the fruit tree, and the hole digging is performed;

[0074] After the fertilizer is filled into the hole, the hole digging driving motor 8 is started to rotate forward again, the hole digging cylinder 4 is lowered while the hole digging cylinder 4 and the baffle plate 3 are rotated back to the normal position, until the hole digging cylinder 4 is close to the touch rod 25, at this time, the hole digging driving motor 8 is turned off, and the shielding driving motor 15 is started to rotate reversely, the movable cover 17-1 is rotated counterclockwise, the elastic shielding curtain 17-4 is wound under the elastic force of the return spring 17-5, until the movable cover 17-1 is located above the fixed cover 17-2 again, at this time, the shielding driving motor 15 is turned off, and the hole digging driving motor 8 is started again, the hole digging cylinder 4 and the baffle plate 3 continue to rotate back to the normal position, and the touch rod 25 is touched in the process of rotating back, the touch rod 25 collides with the hole digging cylinder 4, so that the soil in the hole digging cylinder 4 is loosened and falls to realize backfilling.

[0075] Compared with the prior art, the beneficial effects of the specific embodiment are:

[0076] 1. A plurality of fixed top plates are used to realize adjustable connection by hinges, which meets the needs of various hole digging and improves the application range;

[0077] 2. The lifting drive mechanism is used to control the hole digging cylinder to descend and dig holes, and the rotary drive mechanism is used to realize the fertilizer falling, and then the hole digging cylinder is returned to realize the soil backfilling, so that the hole digging-fertilizing-covering operation is completed in the whole process, and the efficiency is improved;

[0078] 3. The plurality of hole digging cylinders are controlled individually, and the hole digging cylinder with appropriate spacing can be selected according to the fertilization demand, so that the spacing can be adjusted;

[0079] 4. The adjustable fixing mechanism is used to realize the angle adjustment and fixing between the plurality of fixed top plates, and the stability of the whole is improved;

[0080] 5. The soil blocking mechanism is used to realize the blocking of the soil after hole digging, so that the soil is prevented from falling due to loosening before backfilling.

[0081] Example one:

[0082] Referring to Figure 8 , the embodiment is provided with six fixed top plates 1, a fertilizer storage barrel 2, a blocking plate 3 and a hole digging cylinder 4 and other related structures, which are connected by hinges 18 into a long strip shape (without an adjustable fixing mechanism), and the long strip shape is used to dig holes and fertilize between adjacent fruit trees.

[0083] Example two:

[0084] Referring to Figure 9 , the embodiment is provided with twelve fixed top plates 1, a fertilizer storage barrel 2, a blocking plate 3 and a hole digging cylinder 4 and other related structures, which are connected by hinges 18 into a circular ring structure (without an adjustable fixing mechanism), and the circular ring structure is used to fertilize around a single fruit tree.

[0085] For those skilled in the art, the technical solutions described in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for fertilizing fruit trees, characterized by: It contains several fixed roof (1); several fixed roof (1) between the use of hinge (18) connection; it also contains: Fertilizer storage barrels (2), each fixed roof (1) bottom is fixed with fertilizer storage barrels (2); Material baffle (3), material baffle (3) using a rotating drive mechanism is movably disposed in the lower end of the fertilizer storage barrels (2); Dig hole cylinder (4), the dig hole cylinder (4) is movably disposed below the material baffle (3) using a lifting drive mechanism; The lifting drive mechanism contains: Dig hole drive motor (8), the dig hole drive motor (8) is fixed on the fertilizer storage barrels (2); Lead screw (5), the lead screw (5) is fixed on the output shaft of the dig hole drive motor (8); Nut seat (6), the nut seat (6) is fixed on the dig hole cylinder (4), the above-mentioned lead screw (5) and nut seat (6) in the nut thread connection; Guide rod (10), the guide rod (10) is several, equiangular fixed at the bottom of the material baffle (3), and are movably inserted in the cylinder wall of the dig hole cylinder (4); The rotating drive mechanism contains: Rotary connecting plate (7), the rotary connecting plate (7) is fixed on the material baffle (3), the output shaft of the dig hole drive motor (8) is movably disposed in the rotary connecting plate (7); Insertion shaft (11), the insertion shaft (11) is movably disposed in the insertion slot (7-1) in the rotary connecting plate (7), and the insertion shaft (11) and the output shaft of the dig hole drive motor (8) are movably inserted; Spring (12), the spring (12) is movably disposed in the insertion slot (7-1), and the spring (12) is sleeved on the insertion shaft (11), and the both ends are respectively fixed with the insertion shaft (11) and the inner wall of the insertion slot (7-1); Electromagnet (13), the electromagnet (13) is fixed in the insertion slot (7-1), and is movably magnetized with the insertion shaft (11), and the electromagnet (13) is electrically connected with the power supply (14) in the embedding slot (3-1) opened in the material baffle (3); The inside of the dig hole cylinder (4) is provided with a soil retaining mechanism, and the soil retaining mechanism contains: Shielding drive motor (15), the shielding drive motor (15) is fixed on the inner top wall of the dig hole cylinder (4), and the output shaft of the shielding drive motor (15) is connected with the rotating shaft (16) using a shaft coupling; Shielding piece (17), the shielding piece (17) is connected at the lower end of the rotating shaft (16), and the shielding piece (17) contains: Movable cover (17-1), one end of the movable cover (17-1) is sleeved and fixed on the lower end of the rotating shaft (16), and the other end is movably in contact with the inner wall of the dig hole cylinder (4); Fixed cover (17-2), one end of the fixed cover (17-2) is rotatably connected to the lower end of the rotating shaft (16) using a bearing, and the other end is fixed with the inner wall of the dig hole cylinder (4); Shaft seat (17-6), the shaft seat (17-6) is a group of two, symmetrically fixed in the groove penetrating through the movable cover (17-1) and the fixed cover (17-2); Roller (17-3), the same roller (17-3) is rotationally connected to the same group of shaft seat (17-6); wherein the end of the roller (17-3) located in the movable cover (17-1) is sleeved with a return spring (17-5), one end of the return spring (17-5) is fixed to the shaft seat (17-6), and the other end is fixed to the roller (17-3); The elastic shielding curtain (17-4) is fixed to the roller (17-3) located in the fixed cover (17-2), and the elastic shielding curtain (17-4) is wound around the roller (17-3) located in the movable cover (17-1), and the upper edge is fixed to the roller (17-3); The fixed top plate (1) is connected by an adjustable fixing mechanism; the adjustable fixing mechanism comprises: T-shaped slider (21), the T-shaped slider (21) is slidingly clamped in the T-shaped sliding groove (1-1) formed in the side wall of the fixed top plate (1); Hinge seat (22), the hinge seat (22) is fixed on the side wall of the T-shaped slider (21); Connecting shaft (23), the connecting shaft (23) is rotationally connected in the hinge seat (22), and one end of the connecting shaft (23) is arranged outside the hinge seat (22); Screw rod (20), one end of the screw rod (20) is rotationally connected to the end of the connecting shaft (23); the threads of adjacent two screw rods (20) are oppositely arranged; Adjusting threaded sleeve (19), the adjusting threaded sleeve (19) is threadedly connected to the adjacent two screw rods (20) on the adjacent fixed top plate (1).

2. The fruit tree fertilizing apparatus according to claim 1, characterized by: The side wall of the fertilizer storage barrel (2) is fixed with a touch rod (25), and the hole digging cylinder (4) is movably connected with the touch rod (25).

3. The fruit tree fertilizing apparatus according to claim 2, characterized by: The side wall of the fertilizer storage barrel (2) is connected with the fertilizer inlet pipe (9).

4. The fruit tree fertilizing apparatus according to claim 3, characterized by: The inner wall of the fertilizer storage barrel (2) is connected with the fertilizer discharge hopper (24), and the lower end of the fertilizer discharge hopper (24) is movably connected with the baffle (3).

5. The method of fertilizing a fruit tree according to claim 4, wherein: Its fertilization method is as follows: according to the need, adjust the plurality of fixed top plates (1) to the shape of the required hole digging, use the support (26) to place the whole around the position of the fruit tree where fertilization is needed; then connect the fertilizer inlet pipe (9) with the fertilizer pump, the fertilizer pump is connected with the waste tank, start the fertilizer pump to pre-deliver the fertilizer to the fertilizer storage barrel (2); Then, start the hole digging driving motor (8) to rotate, at this time, the electromagnet (13) is energized to magnetize and magnetically attract the plug-in shaft (11), so that the plug-in shaft (11) is separated from the output shaft of the hole digging driving motor (8), so that when the output shaft of the hole digging driving motor (8) rotates, the rotating connecting plate (7) is not driven; drive the screw rod (5) to rotate, at this time, the hole digging cylinder (4) is driven by the guide rod (10) and the screw nut seat (6) to descend and insert into the soil around the fruit tree, and the hole is dug; After digging, the hole digging driving motor (8) is turned off, and the shielding driving motor (15) is started to rotate forward, driving the movable cover (17-1) to rotate clockwise, so as to drive the elastic shielding curtain (17-4) to unfold until the movable cover (17-1) is located above the fixed cover (17-2) again, at this time, the elastic shielding curtain (17-4) will shield the soil in the hole digging cylinder (4) from loosening and falling before backfilling; Then, the power (14) is cut off, so that the electromagnet (13) is de-energized and demagnetized, at this time, the plug-in shaft (11) loses the magnetic attraction force and is inserted into the output shaft of the hole digging driving motor (8) under the elastic force of the spring (12), realizing the butt joint of the rotating connecting plate (7) and the hole digging driving motor (8); Then, the hole digging driving motor (8) is started to rotate reversely, the output shaft of the hole digging driving motor (8) drives the material blocking plate (3) and the hole digging cylinder (4) to rotate counterclockwise and leave the fertilizer storage barrel (2) at the same time, at this time, the lead screw (5) is reversely rotated synchronously, driving the hole digging cylinder (4) with soil to rise until the lower end of the fertilizer discharge hopper (24) is exposed to the material blocking plate (3), and the hole digging driving motor (8) is stopped; At this time, the fertilizer in the fertilizer discharge hopper (24) falls into the hole under the action of gravity; After the fertilizer is filled into the hole, the hole digging driving motor (8) is started to rotate forward again, driving the material blocking plate (3) and the hole digging cylinder (4) to rotate forward at the same time, driving the hole digging cylinder (4) to descend until the hole digging cylinder (4) is close to the touch rod (25), at this time, the hole digging driving motor (8) is turned off, and the shielding driving motor (15) is started to rotate reversely, driving the movable cover (17-1) to rotate counterclockwise, and the elastic shielding curtain (17-4) is wound under the elastic force of the return spring (17-5) until the movable cover (17-1) is located above the fixed cover (17-2) again, at this time, the shielding driving motor (15) is turned off, and the hole digging driving motor (8) is started again, driving the hole digging cylinder (4) and the material blocking plate (3) to continue to rotate forward, and the touch rod (25) is touched in the rotating process, the touch rod (25) collides with the hole digging cylinder (4), so that the soil in the hole digging cylinder (4) is loosened and falls to realize backfilling.

Images