Fertilizer device for fruit tree planting

Abstract

The utility model provides a kind of fertilizing device for fruit tree planting, it is related to fruit tree fertilization technical field, including mobile car and quantitative fertilization component, the top of mobile car is equipped with ranging component.The utility model in, start laser emitter, laser beam is emitted downward by laser hole, and reaches ground by passing through beam expander, beam expander can make laser beam thick, it is convenient for fertilizer personnel to see.In the process of moving, fertilizer personnel slightly side, whether laser beam is irradiated to the soil pit that has been fertilized is observed, when laser beam is irradiated to the middle of the soil pit that has been fertilized, stop moving, under the action of ranging component, realize fixed point to dig pit, ensure that the distance between soil pit remains consistent, avoid the case that soil pit spacing is too large or too small, make full use of land, it is beneficial to subsequent management of fruit tree.

Description

Technical Field

[0001] This utility model relates to the field of fruit tree fertilization technology, and in particular to a fertilization device for fruit tree planting. Background Technology

[0002] Fruit trees are woody or perennial herbaceous plants that provide edible fruits, seeds, and their derivatives (such as kernels and juices). During fruit tree cultivation, soil fertilization is necessary to replenish the nutrients required for the trees' growth and development. Through fertilization, fruit trees can absorb macronutrients such as nitrogen, phosphorus, potassium, calcium, and magnesium, as well as micronutrients such as iron, zinc, and boron from the soil. Fertilization replenishes soil nutrients, prevents soil fertility decline, promotes fruit tree growth and fruit production, and improves product quality.

[0003] In the prior art, such as Chinese Patent Publication No. CN222532220U, a fertilization device for fruit tree planting is disclosed, including a movable hopper. A stirring shaft is mounted on the inner walls of both opposite sides of the movable hopper via bearings. A stirring block arranged in a linear array is fixedly connected to the outer surface of the stirring shaft. The stirring block arrangement allows for the mixing of multiple fertilizers without the need for manual pre-mixing. A first motor is fixedly mounted on one side of the movable hopper, and the output shaft of the first motor is fixedly connected to one end of the stirring shaft via a coupling. A push rod is fixedly connected to the other side of the movable hopper, and a discharge pipe is fixedly connected to the inner bottom wall of the movable hopper. The mixing block arrangement allows for the mixing of multiple fertilizers without the need for manual pre-mixing, improving work efficiency. Furthermore, the quantitative tube arrangement allows for precise quantitative fertilization, preventing excessive fertilizer use leading to soil pollution or insufficient fertilizer use leading to slow fruit tree growth.

[0004] Currently, in fruit tree planting, it is generally necessary to first dig a pit, then fertilize it, and finally plant the fruit tree seedling in the fertilized pit. However, current fruit tree fertilization devices are typically quite large, with the handle and fertilization port aligned on the same axis. When the operator moves the device using the handle, their view is easily obstructed, making it difficult to judge the distance between the pit to be dug and those already dug. This can lead to significant differences in the distance between pits, resulting in pits that are too short or too long. When the distance is too close, the roots of adjacent fruit trees compete fiercely, easily causing canopy crossing and reduced yield. When the distance is too far, land utilization is low, weeds easily grow, and subsequent fruit tree management is hindered. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the existing technology of fertilization devices for fruit tree planting, which are generally large in size, easily obstruct the view, and make it difficult to judge the distance between soil pits. When the distance is too close, the root systems of adjacent fruit trees compete fiercely, which can easily cause the tree canopy to cross and the yield to drop. When the distance is too far, the land utilization rate is low and it is not conducive to subsequent fruit tree management. Therefore, a fertilization device for fruit tree planting is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fertilization device for fruit tree planting, comprising a mobile vehicle and a quantitative fertilization component, wherein a distance measuring component is provided on the top of the mobile vehicle, a pit-digging component is provided on the bottom of the quantitative fertilization component, and I-shaped push rods are fixedly installed on the front and rear surfaces of the mobile vehicle, and an embedded groove is provided inside the mobile vehicle.

[0007] The ranging component includes a fixed scale rod and an extended scale rod movably embedded therein. A movable frame is fixedly installed on the outer surface of one end of the extended scale rod. A laser emitter is installed on the top surface inside the movable frame. A laser hole is opened at one end of the extended scale rod. A magnifying hole is opened at the bottom of the movable frame. A beam expander is installed inside the magnifying hole. A fixing plate is fixedly installed on one side of the top of the moving vehicle. A first electric push rod is fixedly installed on the outer surface of one side of the fixing plate.

[0008] Preferably, the quantitative fertilization component includes a feeding mixer and a measuring cylinder at its bottom. A measuring cylinder is movably embedded inside the measuring cylinder. Multiple measuring grooves are equidistantly opened on the outer surface of the measuring cylinder. The outer surface of the measuring cylinder is in contact with the inner wall of the measuring cylinder. Two fertilizer holes are opened on the outer surface of the measuring cylinder. A servo motor is mounted on the front surface of the measuring cylinder through an auxiliary plate. A rotating shaft is fixedly installed at the output end of the servo motor. The outer surface of the rotating shaft is fixedly installed inside the measuring cylinder. One end of the rotating shaft movably penetrates into the interior of the measuring cylinder and is embedded in the rear surface wall inside the measuring cylinder.

[0009] Preferably, the feeding agitator is mounted on the top of the mobile vehicle via an auxiliary rod, the bottom end of the feeding agitator is fixedly inserted through the interior of the mobile vehicle into the inner groove, the bottom end of the feeding agitator is fixedly mounted on the inner wall of one of the fertilizer holes, the bottom end of the feeding agitator is flush with the inner wall of the measuring cylinder, and the measuring cylinder is mounted on the top surface inside the inner groove via an auxiliary rod.

[0010] Preferably, the hole-digging assembly includes a second electric actuator, one end of which is provided with a movable part, a third electric actuator is fixedly installed on one side of the bottom of the movable part, a movable plate is fixedly installed at the bottom of the third electric actuator, and a hole digger is installed at the bottom of the movable plate via an auxiliary rod.

[0011] Preferably, the hole digger is equipped with a miniature electric actuator inside, and a bulldozer plate is fixedly installed at the bottom end of the miniature electric actuator. The outer surface of the bulldozer plate is movably embedded inside the hole digger, and the top end of the miniature electric actuator is fixedly installed at the bottom of the movable plate.

[0012] Preferably, a guide tube is provided inside one side of the moving part, and a connecting plate is movably sleeved on the outer surface of the guide tube. The bottom of the connecting plate is fixedly installed on the top of the moving plate, and the bottom of the moving part is fixedly installed on the bottom surface inside the embedded groove. A sliding hole is opened on the bottom surface inside the embedded groove, and the outer surfaces of the guide tube and the third electric push rod are movably embedded inside the sliding hole.

[0013] Preferably, a controller is provided on the front surface of the top of the mobile vehicle, a battery is provided on the bottom surface inside the mobile vehicle, a controller is provided on one side inside the mobile vehicle, one end of the first electric push rod is fixedly installed on the outer surface of one side of the mobile frame, four telescopic rods are fixedly installed on the outer surface of one side of the fixed plate, one end of each of the four telescopic rods is fixedly installed on the outer surface of one side of the mobile frame, and the bottom of the fixed scale rod is fixedly installed on the top of the mobile vehicle.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this invention, the laser emitter is activated, emitting a laser beam downwards through a laser aperture. The beam passes through a beam expander to reach the ground, thickening the beam for easier visibility by the fertilizer applicator. During movement, the applicator slightly turns to observe whether the laser beam illuminates the fertilized pit. When the laser beam reaches the center of the fertilized pit, movement stops. The ranging component ensures precise pit digging, maintaining consistent distances between pits and preventing excessively large or small gaps. This maximizes land use and facilitates subsequent fruit tree management.

[0016] 2. In this invention, activating the second electric actuator pushes the moving part to move the hole digger to below the fertilizer hole. Activating the third electric actuator pushes the hole digger downwards to drill into the soil. As the hole digger moves upwards, a hole is formed in the soil. The second electric actuator resumes operation, causing the hole digger and the feed tube to move in the opposite direction and reset. Next, activating the micro electric actuator and servo motor causes the bulldozer to push the soil out of the hole digger. The servo motor drives the metering cylinder to rotate intermittently, causing the metering trough containing fertilizer to rotate to the fertilizer hole below. At this point, the fertilizer, under gravity, automatically falls through the fertilizer hole into the feed tube and finally into the hole, thus achieving automatic hole digging and metered fertilization, saving manpower and time. Attached Figure Description

[0017] Figure 1This utility model provides a frontal perspective view of a fertilization device for fruit tree planting;

[0018] Figure 2 This utility model provides a perspective view of the internal structure of a fertilization device for fruit tree planting;

[0019] Figure 3 This utility model provides a three-dimensional view of the structure of a distance measuring component in a fertilization device for fruit tree planting;

[0020] Figure 4 This utility model provides a structural cross-sectional schematic diagram of a quantitative fertilization component in a fertilization device for fruit tree planting;

[0021] Figure 5 This utility model provides a structural cross-sectional view of the hole-digging component in a fertilization device for fruit tree planting.

[0022] Legend:

[0023] 1. Mobile vehicle; 2. Distance measuring component; 201. Fixed scale rod; 202. Extended scale rod; 203. Fixed plate; 204. Telescopic rod; 205. Mobile frame; 206. First electric actuator; 207. Laser emitter; 208. Laser aperture; 209. Magnifying aperture; 210. Beam expander; 3. Quantitative fertilization component; 301. Feeding mixer; 302. Measuring cylinder; 303. Servo motor; 304. Measuring cylinder; 305. Metering trough; 306. Rotating shaft; 307. Fertilizer hole; 4. Hole-digging assembly; 401. Second electric actuator; 402. Moving part; 403. Third electric actuator; 404. Moving plate; 405. Hole digger; 406. Mini electric actuator; 407. Bulldozer blade; 408. Feed guide pipe; 409. Connecting plate; 5. Controller; 6. Embedded groove; 7. Controller; 8. Battery; 9. I-shaped actuator; 10. Sliding hole. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1, such as Figures 1-5As shown, this utility model provides a fertilization device for fruit tree planting, including a mobile vehicle 1 and a quantitative fertilization component 3. A distance measuring component 2 is installed on the top of the mobile vehicle 1, and a pit-digging component 4 is installed at the bottom of the quantitative fertilization component 3. I-shaped push rods 9 are fixedly installed on the front and rear surfaces of the mobile vehicle 1, and an embedded groove 6 is opened inside the mobile vehicle 1. The distance measuring component 2 includes a fixed scale rod 201 and an extended scale rod 202 movably embedded inside it. A movable frame 205 is fixedly installed on the outer surface of one end of the extended scale rod 202. A laser emitter 207 is installed on the top surface inside the movable frame 205. A laser hole 208 is opened at one end of the extended scale rod 202, and a magnifying hole is opened at the bottom of the movable frame 205. 209, a beam expander 210 is installed inside the magnifying hole 209, a fixing plate 203 is fixedly installed on one side of the top of the mobile vehicle 1, a first electric push rod 206 is fixedly installed on the outer surface of one side of the fixing plate 203, a controller 5 is installed on the front surface of the top of the mobile vehicle 1, a battery 8 is installed on the bottom surface inside the mobile vehicle 1, a controller 7 is installed on one side inside the mobile vehicle 1, one end of the first electric push rod 206 is fixedly installed on the outer surface of one side of the mobile frame 205, four telescopic rods 204 are fixedly installed on the outer surface of one side of the fixing plate 203, one end of each of the four telescopic rods 204 is fixedly installed on the outer surface of one side of the mobile frame 205, and the bottom of the fixed scale rod 201 is fixedly installed on the top of the mobile vehicle 1.

[0027] The overall effect of Embodiment 1 is that the first electric actuator 206, laser emitter 207, feeding mixer 301, servo motor 303, second electric actuator 401, third electric actuator 403, micro electric actuator 406, controller 5, controller 7, and battery 8 are electrically connected. Through the cooperation of the quantitative fertilization component 3 and the hole-digging component 4, the mobile vehicle 1 is moved after digging and precise fertilization. Two I-shaped actuators 9 are installed in the fertilization device, located on the front and rear surfaces of the mobile vehicle 1 respectively. The fertilization operator stands on the front surface of the mobile vehicle 1 and moves the entire device by pushing the I-shaped actuators 9. The I-shaped actuators 9 have an I-shaped structure, providing multiple gripping points at different heights to accommodate fertilization operators of different heights, allowing for better application of thrust and movement of the device. Because the I-shaped actuators 9 are located on the side of the mobile vehicle 1 and are not coaxial with the digging and fertilization points, they prevent the fertilization operator from accidentally stepping on the fertilized holes during movement. The laser emitter 207 is activated in advance, emitting a laser beam downwards through the laser aperture 208. The beam passes through the beam expander 210 and reaches the ground. The beam expander 210 thickens the laser beam without refraction, ensuring a thicker beam that is easier for the fertilizer to see. As the mobile vehicle 1 moves, the ranging component 2 moves along with it, and the thickened laser beam moves with it. The laser beam is coaxial with the digging point. During the movement, the fertilizer slightly turns to observe whether the laser beam illuminates the fertilized pit. If it does not, the mobile vehicle 1 continues to move. When the laser beam illuminates the center of the fertilized pit, the movement stops, and the digging component 4 and the quantitative fertilization component 3 are activated to dig and fertilize. Finally, the above process is repeated for the next point. With the help of the ranging component 2, fixed-point digging is achieved, ensuring that the distance between pits remains consistent and avoiding situations where the pit spacing is too large or too small, making full use of the land and facilitating subsequent management of the fruit trees. Activating the first electric actuator 206 moves the moving frame 205, which in turn moves the extension scale rod 202 and the laser emitter 207 together, thereby extending or reducing the distance of the extension scale rod 202 to achieve fixed-point digging at different distances. This improves applicability and solves the problems in existing technologies where fertilization devices for fruit tree planting are generally large in size, easily obstructing the view and making it difficult to judge the distance between pits. When the spacing is too close, the root systems of adjacent fruit trees compete fiercely, which can easily cause the tree canopy to cross and the yield to decrease. When the spacing is too far, the land utilization rate is low, which is not conducive to subsequent fruit tree management.

[0028] Example 2, as Figures 1-5As shown, the quantitative fertilization component 3 includes a feeding mixer 301 and a measuring cylinder 302 at its bottom. A measuring cylinder 304 is movably embedded inside the measuring cylinder 302. Multiple measuring grooves 305 are equidistantly formed on the outer surface of the measuring cylinder 304. The outer surface of the measuring cylinder 304 contacts the inner wall of the measuring cylinder 302. Two fertilizer holes 307 are formed on the outer surface of the measuring cylinder 302. A servo motor 303 is mounted on the front surface of the measuring cylinder 302 via an auxiliary plate. A rotating shaft 306 is fixedly mounted on the output end of the servo motor 303. The outer surface is fixedly installed inside the metering cylinder 304. One end of the rotating shaft 306 extends movably into the interior of the limiting cylinder 302 and is embedded in the rear surface wall inside the limiting cylinder 302. The feeding agitator 301 is installed on the top of the moving vehicle 1 via an auxiliary rod. The bottom end of the feeding agitator 301 is fixedly extended into the interior of the moving vehicle 1 to the inner groove 6. The bottom end of the feeding agitator 301 is fixedly installed on the inner wall of one of the fertilizer holes 307. The bottom end of the feeding agitator 301 is flush with the inner wall of the limiting cylinder 302. The limiting cylinder 302 is installed via an auxiliary rod. The top surface of the hole-digging assembly 4, installed inside the recessed groove 6, includes a second electric actuator 401. A movable part 402 is provided at one end of the second electric actuator 401. A third electric actuator 403 is fixedly installed on one side of the bottom of the movable part 402. A movable plate 404 is fixedly installed at the bottom of the third electric actuator 403. A hole-digging device 405 is installed at the bottom of the movable plate 404 via an auxiliary rod. A miniature electric actuator 406 is provided inside the hole-digging device 405. A bulldozer plate 407 is fixedly installed at the bottom of the miniature electric actuator 406. The outer surface of the bulldozer plate 407 is movably embedded... Inside the hole digger 405, the top end of the miniature electric actuator 406 is fixedly installed at the bottom of the moving plate 404. A guide tube 408 is provided inside one side of the moving part 402. A connecting plate 409 is movably sleeved on the outer surface of the guide tube 408. The bottom of the connecting plate 409 is fixedly installed on the top of the moving plate 404. The bottom of the moving part 402 is fixedly installed on the bottom surface inside the inner groove 6. A sliding hole 10 is opened on the bottom surface inside the inner groove 6. The outer surfaces of the guide tube 408 and the third electric actuator 403 are movably embedded inside the sliding hole 10.

[0029] The overall effect of Embodiment 2 is as follows: during use, when the mobile vehicle 1 moves to the digging location, the second electric actuator 401 is activated, pushing the moving part 402 to move, which in turn moves the third electric actuator 403, the moving plate 404, and the digger 405, while simultaneously moving the guide pipe 408. When the second electric actuator 401 automatically pauses for a period of time, the guide pipe 408 leaves the fertilizer hole 307 located at the bottom, and the digger 405 moves below the fertilizer hole 307. Then, the third electric actuator 403 is activated, pushing the moving plate 404, the micro electric actuator 406, and the digger 405 downwards, and causing the connecting plate 409 to move downwards on the outer surface of the guide pipe 408, thereby causing the digger 405 to drill into the soil. The upward movement of the third electric actuator 403 pulls the digger 405 upwards, thus forming a hole, similar to a cotton quilter. Next, the second electric actuator 401 resumes operation, pulling the moving part 402 to move in the opposite direction, further driving the hole digger 405 and the guide tube 408 to move in the opposite direction and reset. Then, the micro electric actuator 406 and the servo motor 303 are activated. The micro electric actuator 406 pushes the bulldozer plate 407 downward, pushing the soil out of the hole digger 405. The output end of the servo motor 303 drives the rotating shaft 306 to rotate, and drives the metering cylinder 304 to rotate inside the limiting cylinder 302. When the metering tank 305 rotates to the bottom of the feeding agitator 301, the fertilizer in the feeding agitator 301 automatically falls into the metering tank 305, and under the rotation of the metering cylinder 304, the fertilizer rotates along the inner wall of the limiting cylinder 302. After the metering cylinder 304 rotates ninety degrees, the servo motor 303 will automatically shut off. The rotation of the metering cylinder 304 causes the metering trough 305 containing fertilizer to rotate to the fertilizer hole 307 below. At this time, the fertilizer automatically falls through the fertilizer hole 307 into the guide pipe 408 under the action of gravity, and finally falls into the pit, thus completing the effect of automatic pit digging and metered fertilization, saving manpower and time.

[0030] Working principle: Activating the second electric actuator 401 moves the moving part 402, which in turn moves the third electric actuator 403, the moving plate 404, and the hole digger 405, simultaneously moving the guide pipe 408. When the second electric actuator 401 automatically pauses for a period of time, the hole digger 405 moves below the fertilizer hole 307. Then, activating the third electric actuator 403 pushes the moving plate 404, the micro electric actuator 406, and the hole digger 405 downwards, causing the connecting plate 409 to move downwards on the outer surface of the guide pipe 408. This allows the hole digger 405 to drill into the soil. The upward movement of the third electric actuator 403 pulls the hole digger 405 upwards, forming a hole. Then, the second electric actuator 401 resumes operation, pulling the moving part 402, the hole digger 405, and the guide pipe 408 in the opposite direction to reset. Next, the micro electric actuator 406 and servo motor 303 are activated. The micro electric actuator 406 pushes the bulldozer plate 407 downward to push the soil out of the hole digger 405. The servo motor 303 drives the metering cylinder 304 to rotate intermittently, so that the metering trough 305 containing fertilizer rotates to the fertilizer hole 307. At this time, the fertilizer automatically falls through the fertilizer hole 307 into the guide pipe 408 and finally into the hole. The mobile vehicle 1 is moved by the push rod 9, and the laser emitter 207 is activated in advance. The laser beam is emitted downward through the laser hole 208 and passes through the beam expander 210 to reach the ground. During the movement, the fertilizer slightly turns his body to observe whether the laser beam hits the soil pit that has been fertilized. If it does not hit the pit, the mobile vehicle 1 is pushed to move. When the laser beam hits the middle of the soil pit that has been fertilized, the movement is stopped. Then the digging component 4 and the quantitative fertilization component 3 are activated to dig and fertilize. Finally, the above process is repeated to dig and fertilize the next point, so as to achieve fixed-point digging and ensure that the distance between the soil pits is consistent.

[0031] The wiring diagrams for the first electric actuator 206, laser emitter 207, feeding agitator 301, servo motor 303, second electric actuator 401, third electric actuator 403, miniature electric actuator 406, controller 5, controller 7, and battery 8 in this utility model are common knowledge in the field. Their working principles are well-known technologies, and the appropriate models are selected according to actual use. Therefore, the control methods and wiring arrangements for the first electric actuator 206, laser emitter 207, feeding agitator 301, servo motor 303, second electric actuator 401, third electric actuator 403, miniature electric actuator 406, controller 5, controller 7, and battery 8 will not be explained in detail.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fertilization device for fruit tree planting, comprising a mobile vehicle (1) and a quantitative fertilization component (3), characterized in that: The top of the mobile vehicle (1) is provided with a ranging component (2), the bottom of the quantitative fertilization component (3) is provided with a pit-digging component (4), and I-shaped push rods (9) are fixedly installed on the front and rear surfaces of the mobile vehicle (1). An embedded groove (6) is opened inside the mobile vehicle (1). The ranging component (2) includes a fixed scale rod (201) and an extended scale rod (202) movably embedded therein. A movable frame (205) is fixedly installed on the outer surface of one end of the extended scale rod (202). A laser emitter (207) is provided on the top surface inside the movable frame (205). A laser hole (208) is opened at one end of the extended scale rod (202). A magnifying hole (209) is opened at the bottom of the movable frame (205). A beam expander (210) is provided inside the magnifying hole (209). A fixing plate (203) is fixedly installed on one side of the top of the moving vehicle (1). A first electric actuator (206) is fixedly installed on the outer surface of one side of the fixing plate (203).

2. The fertilization device for fruit tree planting according to claim 1, characterized in that: The quantitative fertilization component (3) includes a feeding mixer (301) and a measuring cylinder (302) at its bottom. A measuring cylinder (304) is movably embedded inside the measuring cylinder (302). Multiple measuring grooves (305) are equidistantly opened on the outer surface of the measuring cylinder (304). The outer surface of the measuring cylinder (304) is in contact with the inner wall of the measuring cylinder (302). Two fertilizer holes (307) are opened on the outer surface of the measuring cylinder (302). A servo motor (303) is installed on the front surface of the measuring cylinder (302) through an auxiliary plate. A rotating shaft (306) is fixedly installed at the output end of the servo motor (303). The outer surface of the rotating shaft (306) is fixedly installed inside the measuring cylinder (304). One end of the rotating shaft (306) movably penetrates into the interior of the measuring cylinder (302) and is embedded in the rear surface wall inside the measuring cylinder (302).

3. The fertilization device for fruit tree planting according to claim 2, characterized in that: The feeding agitator (301) is installed on the top of the mobile vehicle (1) by an auxiliary rod. The bottom end of the feeding agitator (301) is fixedly inserted through the mobile vehicle (1) into the interior of the inner groove (6). The bottom end of the feeding agitator (301) is fixedly installed on the inner wall of one of the fertilizer holes (307). The bottom end of the feeding agitator (301) is flush with the inner wall of the measuring cylinder (302). The measuring cylinder (302) is installed on the top surface inside the inner groove (6) by an auxiliary rod.

4. The fertilization device for fruit tree planting according to claim 3, characterized in that: The hole-digging assembly (4) includes a second electric actuator (401), a movable part (402) is provided at one end of the second electric actuator (401), a third electric actuator (403) is fixedly installed on one side of the bottom of the movable part (402), a movable plate (404) is fixedly installed at the bottom end of the third electric actuator (403), and a hole digger (405) is installed at the bottom of the movable plate (404) through an auxiliary rod.

5. The fertilization device for fruit tree planting according to claim 4, characterized in that: The hole digger (405) is equipped with a miniature electric actuator (406) inside. A bulldozer plate (407) is fixedly installed at the bottom end of the miniature electric actuator (406). The outer surface of the bulldozer plate (407) is movably embedded inside the hole digger (405). The top end of the miniature electric actuator (406) is fixedly installed at the bottom of the movable plate (404).

6. The fertilization device for fruit tree planting according to claim 5, characterized in that: A guide tube (408) is provided inside one side of the moving part (402). A connecting plate (409) is movably sleeved on the outer surface of the guide tube (408). The bottom of the connecting plate (409) is fixedly installed on the top of the moving plate (404). The bottom of the moving part (402) is fixedly installed on the bottom surface inside the embedded groove (6). A sliding hole (10) is opened on the bottom surface inside the embedded groove (6). The outer surfaces of the guide tube (408) and the third electric push rod (403) are both movably embedded inside the sliding hole (10).

7. The fertilization device for fruit tree planting according to claim 1, characterized in that: A controller (5) is installed on the front surface of the top of the mobile vehicle (1), a battery (8) is installed on the bottom surface inside the mobile vehicle (1), a controller (7) is installed on one side inside the mobile vehicle (1), one end of the first electric push rod (206) is fixedly installed on the outer surface of one side of the mobile frame (205), four telescopic rods (204) are fixedly installed on the outer surface of one side of the fixed plate (203), one end of each of the four telescopic rods (204) is fixedly installed on the outer surface of one side of the mobile frame (205), and the bottom of the fixed scale rod (201) is fixedly installed on the top of the mobile vehicle (1).

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