Deep soil nutrient distributing device for agricultural planting

Abstract

The invention is applicable to the field of agricultural machinery, and provides a deep soil nutrient distributing device for agricultural planting, which comprises a support frame connected with a traction machine, and further comprises a nutrient treatment assembly, the nutrient treatment assembly comprises a first box body fixedly connected with the support frame, and a grinding assembly is fixedly arranged at the top of the first box body; a stock bin is installed at the top of the grinding assembly, and an airflow conveying pipeline used for conveying powdery soil nutrients is arranged in the first box body. A plurality of first mounting hole sites arranged at intervals are formed in the top of the first box body, the distributing and feeding assembly comprises feeding pipe fittings arranged in the first mounting hole sites, the tops of the feeding pipe fittings are connected with the airflow conveying pipeline, and an arc-shaped soil breaking knife facing the side of the supporting frame is arranged at the bottom of the first box body. The device has the beneficial effects that on the basis of realizing deep application, sufficient soil nutrients can be ensured under the condition of continuous operation, and the frequency of supplementing the soil nutrients is reduced, so that the operation efficiency is indirectly improved.

Description

Technical Field

[0001] The invention belongs to the field of agricultural machinery, and in particular relates to a deep soil nutrient distribution device for agricultural planting. Background Art

[0002] Planting is one of the main components of agriculture. It uses the life functions of plants to obtain food, non-staple food, feed and industrial raw materials through artificial cultivation. Fertilization is an important part of agricultural planting. When the soil is poor, the growth of crops will be seriously hindered. Therefore, nutrients need to be spread in the soil manually. The conventional method is to spread nutrients directly on the soil surface. This method prevents the roots of crops from absorbing nutrients immediately, and it is easy to cause nutrient loss after rainy weather. Therefore, deep fertilization is adopted in the prior art, and nutrients are directly injected into the soil through special devices.

[0003] Existing soil nutrients are mostly solid particles. In order to carry out better deep fertilization, the nutrients are usually mixed with water and then injected into the soil. This method will greatly reduce the amount of nutrients loaded on the device. For large-scale planting operations, nutrients need to be frequently replenished, resulting in discontinuities in actual operations. Therefore, a deep soil nutrient distribution device for agricultural planting is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a deep soil nutrient distribution device for agricultural planting, aiming to solve the problems mentioned in the above background technology.

[0005] The embodiment of the present invention is implemented as follows: a deep soil nutrient distribution device for agricultural planting includes a support frame connected to a traction machine, and also includes: A nutrient processing assembly, the nutrient processing assembly is installed at the rear end of the support frame, the nutrient processing assembly includes a first box body fixedly connected to the support frame, a grinding assembly is fixedly arranged on the top of the first box body, a silo is installed on the top of the grinding assembly, the silo is used to load soil nutrients, the grinding assembly is used to process the soil nutrients falling from the silo into powder, an air flow conveying pipeline for conveying powdered soil nutrients is arranged in the first box body, and the air flow conveying pipeline and the grinding assembly are connected through a connecting assembly; A distribution component, the distribution component is arranged at the bottom of the first box body and close to the side of the support frame, a plurality of first installation holes arranged at intervals are opened on the top of the first box body, the distribution component includes a dosing pipe set in the first installation hole, the top of the dosing pipe is connected to the air flow conveying pipeline, a plurality of second installation holes corresponding to the first installation holes are opened at the bottom of the first box body, the second installation holes are located between the support frame and the first installation holes, a column that can move in a vertical direction is arranged in the second installation hole, an arc-shaped earth-breaking knife arranged toward the side of the support frame is fixedly connected to the bottom of the column, and an adjustment component for driving the movement of the plurality of columns is arranged in the first box body; Support rollers for carrying the first box body are arranged on both sides of the first box body, and the support rollers are located at one end of the first box body away from the support frame.

[0006] Preferably, the support frame includes two horizontal frames arranged at intervals, and a connecting frame for connecting the two horizontal frames, a column head is fixedly arranged on the connection, and connecting pins for connecting with the traction machinery are arranged on the ends of the two horizontal frames away from the first box body and the column head, and the three connecting pins are arranged in a herringbone shape; A cover shell is fixedly connected to the bottom of the horizontal frame, a rotary tillage assembly is arranged in the cover shell, the output end of the rotary tillage assembly is a plurality of groups of rotary tillage blades evenly arranged, and a power connection assembly for power connection between the rotary tillage assembly and the traction machinery is fixedly arranged on the cover shell.

[0007] Preferably, a bearing platform is fixedly connected to the top of the first box body at one side away from the support frame, the silo and the grinding assembly are both arranged on the bearing platform, the grinding assembly comprises a second box body fixedly connected to the bearing platform, the second box body is located between the silo and the connecting assembly, and the silo, the second box body, the connecting assembly and the interior of the air flow conveying pipeline are in a connected state, two grinding rollers arranged at intervals in a transverse direction are rotatably arranged in the second box body, and a filling guide block for filling the gap between the grinding roller and the inner wall of the second box body is fixedly connected to the inner wall of the second box body; The first box body is rotatably provided with a mounting shaft, both ends of which are fixedly connected to the supporting rollers on both sides, the mounting shaft is connected to the two grinding rollers through a transmission component, and the rotation directions of the two grinding rollers are in opposite directions.

[0008] Preferably, the connecting component comprises a rotary feeder fixedly connected to the bearing platform and located inside the first box body, and the bottom of the rotary feeder is connected to the airflow conveying pipeline through a special-shaped pipe.

[0009] Preferably, the airflow delivery pipeline comprises a fan fixedly connected to the first box body, and a delivery pipe is provided at the output end of the fan.

[0010] Preferably, the adjustment assembly includes a horizontal plate fixedly connected to the tops of multiple columns, telescopic parts arranged in the vertical direction are installed on both sides of the first box body, the bottom of the telescopic parts is fixedly connected to the horizontal plate, and the telescopic parts on both sides are used to drive the horizontal plate to move in the vertical direction, and the dosing pipe fitting includes a first tube body connected to the airflow conveying pipeline, a second tube body is slidably sleeved on the first tube body, the second tube body is slidably arranged in the first mounting hole, a rear dosing nozzle is arranged at the bottom of the second tube body, the second tube body is connected to the column by a fixed sleeve, and the fixed sleeve is located at the bottom of the first box body, and when the column moves in the vertical direction, the fixed sleeve is used to drive the second tube body to move synchronously.

[0011] Preferably, one end of the first tube body located in the second tube body is fixedly connected to a ring body, a top frame is fixedly connected to the second tube body, and a sealing cover matching the ring body is fixedly connected to the top frame; when the column and the second tube body are in an initial state, the sealing cover and the ring body are in the same horizontal plane, so that the end of the first tube body is closed.

[0012] Preferably, a cover plate is detachably fixedly connected to the top of the silo.

[0013] The embodiment of the present invention provides a deep soil nutrient distribution device for agricultural planting, which has the following beneficial effects: This device is used in conjunction with a traction machine to drive the device to move. When in use, the soil nutrients in the silo will be processed into powder by the grinding component, and the powdered soil nutrients will be transported to the feeding pipe by the air flow conveying pipeline. Since the front side of the feeding pipe is provided with an arc-shaped soil-breaking knife, the feeding pipe can send the airflow carrying the nutrient powder into the soil, forming a deep fertilization effect. The characteristic is that the silo of this device is completely used to load soil nutrients, and its carrying capacity is larger. No other materials will occupy the internal space. On the basis of achieving deep application, it is guaranteed that there will be sufficient soil nutrients in the case of continuous operation, reducing the frequency of replenishing soil nutrients, thereby indirectly improving the efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural diagram of a deep soil nutrient distribution device for agricultural planting provided by an embodiment of the present invention; Figure 2 A front view of a deep soil nutrient distribution device for agricultural planting provided by an embodiment of the present invention; Figure 3 A three-dimensional schematic diagram of the relevant structure on the first box body provided by an embodiment of the present invention; Figure 4 An internal structural diagram of a nutrient processing component and a distribution component provided in an embodiment of the present invention; Figure 5An internal structure diagram of a first box provided by an embodiment of the present invention; Figure 6 A detailed structural diagram of a dosing pipe provided in an embodiment of the present invention; Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0015] In the attached drawings: 1, support frame; 101, cross frame; 102, connecting frame; 103, column head; 104, connecting pin; 2, first box; 3, grinding assembly; 301, second box; 302, grinding roller; 303, filling guide block; 4, silo; 5, air flow pipeline; 501, fan; 502, conveying pipe; 6, connecting assembly; 601, rotary feeder; 602, special-shaped pipe; 7, first installation hole; 8, dosing pipe fitting; 801, first pipe body; 802, second tube body; 803, dosing nozzle; 9, second mounting hole; 10, column; 11, arc-shaped earth-breaking knife; 12, adjustment assembly; 1201, cross plate; 1202, telescopic member; 13, supporting roller; 14, cover; 15, rotary tillage assembly; 16, power connection assembly; 17, bearing platform; 18, mounting shaft; 19, transmission component; 20, fixing sleeve; 21, ring body; 22, top frame; 23, cover; 24, protective mesh; 25, cover plate. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a deep soil nutrient distribution device for agricultural planting provided by an embodiment of the present invention includes a support frame 1 connected to a traction machine, and also includes: A nutrient processing assembly, the nutrient processing assembly is installed at the rear end of the support frame 1, the nutrient processing assembly includes a first box body 2 fixedly connected to the support frame 1, a grinding assembly 3 is fixedly arranged on the top of the first box body 2, a silo 4 is installed on the top of the grinding assembly 3, a cover plate 25 is detachably fixedly connected to the top of the silo 4, the cover plate 25 can be fixed to the first box body 2 in a locking manner, the cover plate 25 can prevent the nutrients in the silo 4 from spilling out when the device is moved, the silo 4 is used to load soil nutrients, the grinding assembly 3 is used to process the soil nutrients falling from the silo 4 into powder, an airflow conveying pipe 502 5 for conveying powdered soil nutrients is arranged in the first box body 2, and the airflow conveying pipe 502 5 is connected to the grinding assembly 3 through a connecting assembly 6; A distributing assembly, wherein the distributing assembly is arranged at the bottom of the first box body 2 and close to the side of the support frame 1, and a plurality of first installation holes 7 arranged at intervals are provided on the top of the first box body 2, and the distributing assembly includes a dosing pipe 8 arranged in the first installation hole 7, and the top of the dosing pipe 8 is connected to the air flow conveying pipe 502 5, and a plurality of second installation holes 9 corresponding to the first installation holes 7 are provided at the bottom of the first box body 2, and the second installation holes 9 are located between the support frame 1 and the first installation holes 7, and a column 10 capable of moving in a vertical direction is provided in the second installation hole 9, and an arc-shaped earth-breaking knife 11 arranged toward the side of the support frame 1 is fixedly connected to the bottom of the column 10, and an adjusting assembly 12 for driving the movement of the plurality of columns 10 is provided in the first box body 2; Support rollers 13 for supporting the first box body 2 are disposed on both sides of the first box body 2 . The support rollers 13 are located at one end of the first box body 2 away from the support frame 1 .

[0019] In one embodiment of the present invention, the device is used in conjunction with a traction machine to drive the device to move. When in use, the soil nutrients in the silo 4 will be processed into powder by the grinding component 3, and the powdered soil nutrients will be transported to the adding pipe 8 by the air flow conveying pipeline 5. Since the front side of the adding pipe 8 is provided with an arc-shaped soil-breaking knife 11, the adding pipe 8 can send the airflow carrying the nutrient powder into the soil, forming a deep fertilization effect. The characteristic is that the silo 4 of the device is completely used to load soil nutrients, and its carrying capacity is larger. No other materials will occupy the internal space. On the basis of achieving deep application, it is guaranteed that there will be sufficient soil nutrients in the case of continuous operation, reducing the frequency of replenishing soil nutrients, thereby indirectly improving the efficiency of the operation.

[0020] In one embodiment of the present invention, Figure 1As shown, the support frame 1 includes two horizontal frames 101 arranged at intervals, and a connecting frame 102 for connecting the two horizontal frames 101, and a column head 103 is fixedly arranged on the connection. The ends of the two horizontal frames 101 away from the first box body 2 and the column head 103 are both provided with connecting pins 104 for connecting with the traction machinery, and the three connecting pins 104 are arranged in a herringbone shape; the bottom of the horizontal frame 101 is fixedly connected to a cover shell 14, and a rotary tillage assembly 15 is arranged in the cover shell 14. The output end of the rotary tillage assembly 15 is a plurality of groups of rotary tillage blades evenly arranged, and the cover shell 14 is fixed with a plurality of rotary tillage blades. A power connection assembly 16 is provided for connecting the rotary tillage assembly 15 to the traction machinery. The power connection assembly 16 can adopt a universal joint connection method to drive the rotary tillage blade to rotate. The rotary tillage blade can dig up the compact soil and break it, so that the soil becomes loose, that is, the gap between the soil is increased, which not only facilitates the arc-shaped soil-breaking knife 11 to cut into the soil, but also when the feeding pipe 8 transports the powder nutrients into the soil, the airflow can carry the powder nutrients more easily to spread in the soil, thereby significantly increasing the effect of nutrient absorption.

[0021] like Figure 1 , Figure 2 and Figure 4 As shown, as a preferred embodiment of the present invention, a load-bearing platform 17 is fixedly connected to the top of the first box body 2 on the side away from the support frame 1, and the silo 4 and the grinding assembly 3 are both arranged on the load-bearing platform 17. The grinding assembly 3 includes a second box body 301 fixedly connected to the load-bearing platform 17, and the second box body 301 is located between the silo 4 and the connecting assembly 6, and the interior of the silo 4, the second box body 301, the connecting assembly 6 and the airflow conveying pipeline 5 are in a connected state, and two grinding rollers 302 arranged laterally at intervals are rotatably arranged in the second box body 301, and a filling guide block 303 for filling the gap between the grinding roller 302 and the inner wall of the second box body 301 is fixedly connected to the inner wall of the second box body 301.

[0022] In one case of the present embodiment, a mounting shaft 18 is rotatably provided on the first box body 2, and both ends of the mounting shaft 18 are fixedly connected to the support rollers 13 on both sides. The mounting shaft 18 is connected to the two grinding rollers 302 through a transmission component 19, and the rotation directions of the two grinding rollers 302 are in opposite states. The transmission component 19 can be in the form of a belt drive, and of course, it can also be in the form of a chain drive. When the device moves, it can drive the grinding rollers 302 to rotate, and the two grinding rollers 302 cooperate with each other to grind the nutrients in the silo 4. The connecting component 6 includes a rotary feeder 601 fixedly connected to the supporting platform 17 and located inside the first box body 2. The bottom of the rotary feeder 601 is connected to the airflow conveying pipeline 5 through a special-shaped pipe 602. The good sealing design of the rotary feeder 601 can prevent air from flowing back from the high-pressure side to the low-pressure side, thereby maintaining the pressure difference of the system and ensuring the effectiveness of pneumatic conveying. The rotary feeder 601 is a prior art, so the specific structure will not be repeated. Figure 5 As shown, the air flow conveying pipeline 5 includes a fan 501 fixedly connected to the first box body 2, and a conveying pipe 502 is provided at the output end of the fan 501. In addition, a protective mesh plate 24 is provided on one side of the top supporting platform 17 of the first box body 2. The protective mesh plate 24 can allow outside air to enter the fan 501, thereby not affecting the normal operation of the fan 501, and can also prevent some soil from entering the first box body 2.

[0023] like Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment of the present invention, the adjusting component 12 includes a horizontal plate 1201 fixedly connected to the tops of multiple columns 10, and telescopic parts 1202 arranged in the vertical direction are installed on both sides of the first box body 2, and the bottom of the telescopic parts 1202 is fixedly connected to the horizontal plate 1201, and the telescopic parts 1202 on both sides are used to drive the horizontal plate 1201 to move in the vertical direction. The dosing pipe fitting 8 includes a first tube body 801 connected to the airflow conveying pipeline 5, and a second tube body 802 is slidably sleeved on the first tube body 801. The second tube body 802 is slidably arranged in the first installation hole 7, and a rear dosing nozzle 803 is arranged at the bottom of the second tube body 802. The second tube body 802 is connected to the column 10 through a fixed sleeve 20, and the fixed sleeve 20 is located at the bottom of the first box body 2. When the column 10 moves in the vertical direction, the fixed sleeve 20 is used to drive the second tube body 802 to move synchronously.

[0024] In one case of the present embodiment, the telescopic member 1202 can be in the form of an electric telescopic rod, or of course, in the form of a hydraulic telescopic rod. The telescopic member 1202 can control the arc-shaped soil-breaking knife 11 to rise and fall, thereby adjusting the depth of its cutting into the soil. In addition, since the fixed sleeve 20 connects the column 10 and the second tube body 802 together, the arc-shaped soil-breaking knife 11 and the dosing nozzle 803 can be raised and lowered synchronously, which can make it easier to transport powder nutrients to the deep soil. When the device is not in use, after the arc-shaped soil-breaking knife 11 is recovered, the dosing nozzle 803 is also recovered synchronously. One end of the first tube body 801 located in the second tube body 802 is fixedly connected to the ring body 21. The second tube body 802 is fixedly connected with a top frame 22, and a sealing cover 23 cooperating with the ring body 21 is fixedly connected to the top frame 22. When the column 10 and the second tube body 802 are in the initial state, the sealing cover 23 and the ring body 21 are in the same horizontal plane, so that the end of the first tube body 801 is closed. Therefore, when the device is in use, since the second tube body 802 is in an extended state, the powder nutrients can be smoothly transported at this time. When the device is not in use, since the second tube body 802 is in a recovery action, the sealing cover 23 will eventually cooperate with the ring body 21, thereby closing the first tube body 801, which can prevent the airflow conveying pipeline 5 and the powder nutrients remaining in the first tube body 801 from leaking out.

[0025] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A deep soil nutrient distribution device for agricultural planting, comprising a support frame (1) connected to a traction machine, characterized in that: Also includes: A nutrient processing assembly, wherein the nutrient processing assembly is installed at the rear end of the support frame (1), the nutrient processing assembly comprises a first box body (2) fixedly connected to the support frame (1), a grinding assembly (3) is fixedly arranged on the top of the first box body (2), a silo (4) is installed on the top of the grinding assembly (3), the silo (4) is used to load soil nutrients, the grinding assembly (3) is used to process the soil nutrients falling from the silo (4) into powder, an air flow conveying pipeline (5) for conveying powdered soil nutrients is arranged in the first box body (2), and the air flow conveying pipeline (5) and the grinding assembly (3) are connected via a connecting assembly (6); a distribution assembly, the distribution assembly being arranged at the bottom of the first box body (2) and close to the side of the support frame (1); a plurality of first installation holes (7) arranged at intervals are provided on the top of the first box body (2); the distribution assembly comprises a dosing pipe (8) arranged in the first installation hole (7); the top of the dosing pipe (8) is connected to the air flow conveying pipeline (5); a plurality of second installation holes (9) corresponding to the first installation holes (7) are provided at the bottom of the first box body (2); the second installation holes (9) are located between the support frame (1) and the first installation holes (7); a column (10) movable in a vertical direction is provided in the second installation hole (9); an arc-shaped earth-breaking knife (11) arranged toward the side of the support frame (1) is fixedly connected to the bottom of the column (10); and an adjustment assembly (12) for driving the plurality of columns (10) to move is provided in the first box body (2); Support rollers (13) for supporting the first box body (2) are arranged on both sides of the first box body (2); the support rollers (13) are located at one end of the first box body (2) away from the support frame (1).

2. The deep soil nutrient distribution device for agricultural planting according to claim 1, characterized in that: The support frame (1) comprises two horizontal frames (101) arranged at intervals, and a connecting frame (102) for connecting the two horizontal frames (101), a column head (103) being fixedly arranged on the connection, and connecting pins (104) for connecting to a traction machine are arranged on the ends of the two horizontal frames (101) away from the first box body (2) and the column head (103), and the three connecting pins (104) are arranged in a herringbone shape; The bottom of the horizontal frame (101) is fixedly connected to a cover shell (14), a rotary tillage assembly (15) is arranged in the cover shell (14), the output end of the rotary tillage assembly (15) is a plurality of groups of rotary tillage blades evenly arranged, and a power connection assembly (16) for power connection between the rotary tillage assembly (15) and a traction machine is fixedly arranged on the cover shell (14).

3. The deep soil nutrient distribution device for agricultural planting according to claim 1, characterized in that: A bearing platform (17) is fixedly connected to the top of the first box body (2) at a side away from the support frame (1), the silo (4) and the grinding assembly (3) are both arranged on the bearing platform (17), the grinding assembly (3) comprises a second box body (301) fixedly connected to the bearing platform (17), the second box body (301) is located between the silo (4) and the connecting assembly (6), and the interiors of the silo (4), the second box body (301), the connecting assembly (6) and the air flow conveying pipeline (5) are in a connected state, two grinding rollers (302) arranged laterally at intervals are rotatably arranged in the second box body (301), and a filling guide block (303) for filling a gap between the grinding roller (302) and the inner wall of the second box body (301) is fixedly connected to the inner wall of the second box body (301); A mounting shaft (18) is rotatably provided on the first housing (2), and both ends of the mounting shaft (18) are fixedly connected to the supporting rollers (13) on both sides. The mounting shaft (18) is connected to the two grinding rollers (302) via a transmission component (19), and the rotation directions of the two grinding rollers (302) are in opposite directions.

4. The deep soil nutrient distribution device for agricultural planting according to claim 3 is characterized in that: The connecting component (6) comprises a rotary feeder (601) fixedly connected to the supporting platform (17) and located inside the first box body (2); the bottom of the rotary feeder (601) is connected to the air flow conveying pipeline (5) via a special-shaped pipe (602).

5. The deep soil nutrient distribution device for agricultural planting according to claim 4, characterized in that: The airflow delivery pipeline (5) comprises a fan (501) fixedly connected to the first box body (2), and a delivery pipe (502) is provided at the output end of the fan (501).

6. The deep soil nutrient distribution device for agricultural planting according to claim 1, characterized in that: The regulating assembly (12) comprises a horizontal plate (1201) fixedly connected to the tops of the plurality of columns (10); telescopic members (1202) arranged in a vertical direction are installed on both sides of the first box body (2); the bottom of the telescopic member (1202) is fixedly connected to the horizontal plate (1201); the telescopic members (1202) on both sides are used to drive the horizontal plate (1201) to move in a vertical direction; the dosing pipe (8) comprises a first pipe body (801) connected to the airflow conveying pipeline (5); the first pipe body ( A second tube body (802) is slidably sleeved on the column (801), and the second tube body (802) is slidably set in the first installation hole (7). A rear dosing nozzle (803) is set at the bottom of the second tube body (802). The second tube body (802) and the column (10) are connected by a fixing sleeve (20), and the fixing sleeve (20) is located at the bottom of the first box body (2). When the column (10) moves in the vertical direction, the fixing sleeve (20) is used to drive the second tube body (802) to move synchronously.

7. The deep soil nutrient distribution device for agricultural planting according to claim 6, characterized in that: One end of the first tube body (801) located inside the second tube body (802) is fixedly connected to a ring body (21), a top frame (22) is fixedly connected inside the second tube body (802), and a sealing cover (23) matching with the ring body (21) is fixedly connected to the top frame (22); when the column (10) and the second tube body (802) are in an initial state, the sealing cover (23) and the ring body (21) are in the same horizontal plane, so that the end of the first tube body (801) is closed.

8. The deep soil nutrient distribution device for agricultural planting according to claim 1, characterized in that: The top of the silo (4) is detachably fixedly connected with a cover plate.

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