Deep soil improvement and fertilization device for traditional Chinese medicine planting

Abstract

The invention relates to the technical field of agricultural equipment, and discloses a deep soil improvement and fertilization device for traditional Chinese medicine planting, the deep soil improvement and fertilization device for traditional Chinese medicine planting comprises a case, a shunt pipe fixedly mounted in the case and a plurality of rotary digging drill bits arranged below the case, one side of the case is provided with a traction assembly for driving the case to move, and the rotary digging drill bits are of hollow structures; a multi-rotary-excavating-drill-bit parallel-connection structure is adopted, the outer side of each drill bit is provided with a spiral blade and is integrated with a hollow fertilization channel, synchronous rotary drilling of the multiple drill bits is achieved through the driving mechanism, fertilization operation can be synchronously completed in the process that the drill bits go deep into soil, and the low-efficiency mode that an insertion pipe needs to be repeatedly inserted and pulled in a traditional device is thoroughly changed; according to the device, an inclined soil penetrating design is combined with a self-rotating rotary excavating mechanism, so that the drill bit can penetrate deep soil with a small traction force, the rotary excavating drill bit can horizontally move in the soil in an inclined state, the fertilization operation can be synchronously completed in the process that the drill bit penetrates into the soil, and the fertilization efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, in particular to a deep soil improvement and fertilization device for Chinese medicinal plant planting. Background Art

[0002] In the field of Chinese medicine cultivation, soil quality is a key factor affecting the accumulation of effective ingredients in medicinal materials and the growth cycle. Traditional Chinese medicine cultivation mostly relies on manual or shallow fertilization methods (such as broadcasting and ditch application). Fertilizers are concentrated on the surface or shallow soil (0-20 cm), which is difficult to penetrate into the deep root distribution area (such as 30-50 cm), resulting in low fertilizer utilization and limited root absorption of medicinal materials. Long-term shallow fertilization can easily cause salinization or compaction of the soil surface, destroy the soil aggregate structure, reduce microbial activity, and further affect the quality of medicinal materials. For example, deep-rooted medicinal materials such as ginseng and astragalus have high requirements for deep soil fertility, and conventional fertilization methods are difficult to meet their growth needs.

[0003] Chinese patent CN111656931B discloses a fertilizing device for Chinese medicinal materials planting, comprising a fertilizer box, a feeding aid mechanism, a spacing adjustment mechanism, a height adjustment mechanism, a rotating roller mechanism, a mobile feeding assembly and a pushing mechanism, wherein the feeding aid mechanism is fixedly mounted on the upper end of the fertilizer box, the spacing adjustment mechanism is fixedly mounted on the fertilizer box, the height adjustment mechanism is fixedly mounted on the lower end of the fertilizer box, the rotating roller mechanism is fixedly mounted below the height adjustment mechanism, the mobile feeding assembly is fixedly mounted on the fertilizer box, the pushing mechanism is fixedly mounted on the mobile feeding assembly, and the fertilizer box is provided with a feeding port and a discharging port; the device has the function of adapting to different sizes of Chinese medicinal materials and facilitating fertilization, and can add fertilizer to a certain depth in the soil to facilitate absorption by the roots of the Chinese medicinal materials.

[0004] As shown in the above patent, in order to achieve the effect of deep soil fertilization, the existing Chinese medicinal material planting fertilization device usually adopts the method of inserting a tube deep into the soil, and then releasing the fertilizer inside the tube to the deep soil layer. After completing a fertilization operation, the tube needs to be pulled out, and then the device moves to a new fertilization position. After each fertilization operation is completed, the tube needs to be plugged in and out. Since the tube cannot move horizontally in the soil and fertilize simultaneously, the fertilization efficiency is relatively low.

[0005] Therefore, it is necessary to provide a deep soil improvement and fertilization device for Chinese medicinal herb planting to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a deep soil improvement and fertilization device for Chinese medicinal herb planting, which adopts an inclined soil entry design combined with a self-rotating rotary drilling mechanism, so that the drill bit can penetrate the deep soil with a smaller traction force, and the rotary drilling drill bit can move horizontally in the soil in an inclined state. The fertilization operation can be completed synchronously in the process of the drill bit penetrating into the soil, thereby improving the fertilization efficiency.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a deep soil improvement and fertilization device for Chinese medicine planting, comprising a chassis, a shunt pipe fixedly mounted inside the chassis, and a plurality of rotary drilling bits arranged below the chassis, a traction assembly for driving the chassis to move is arranged on one side of the chassis, the rotary drilling bit is a hollow structure, a rotating cylinder is fixedly connected to the top of the rotary drilling bit, the top of the rotating cylinder is rotatably connected to the shunt pipe and is interconnected, a driving mechanism for driving the plurality of rotating cylinders to rotate synchronously is arranged in the chassis, a plurality of fertilization assemblies are equidistantly installed on the rotary drilling bit from top to bottom, the fertilization assembly comprises a cylinder fixedly mounted on the rotary drilling bit and a piston slidably mounted inside the cylinder, a plug rod is fixedly mounted on one side of the piston, a fertilization pipe is fixedly mounted on the other side of the piston, a transmission assembly is arranged inside the rotary drilling bit, and the transmission assembly drives the plug rod to reciprocate when the rotary drilling bit rotates, so that the piston reciprocates to draw the solution inside the rotary drilling bit into the cylinder and then discharge it through the fertilization pipe.

[0008] The present invention is further configured as follows: a spring is arranged inside the cylinder, the piston is elastically connected to the inner wall of the cylinder through the spring, an extension groove for extending the fertilizer pipe is provided on the side of the cylinder away from the plug rod, a liquid inlet and a liquid outlet are provided at both ends of the fertilizer pipe, a connecting channel for connecting the liquid inlet and the liquid outlet is provided inside the fertilizer pipe, and when the fertilization assembly is not working, the end of the fertilizer pipe is arranged in the extension groove provided at the end of the cylinder away from the plug rod.

[0009] The present invention is further configured as follows: the cylinder is connected to a liquid inlet cylinder, and a one-way valve is arranged in the liquid inlet cylinder.

[0010] The present invention is further configured as follows: the transmission assembly includes a support rod and a plurality of transmission elements sleeved on the support rod, the support rod is arranged in a hollow rotary drill bit, a mounting seat is fixedly installed on the top end of the diversion pipe, the top end of the support rod is connected to the mounting seat, the outer peripheral wall of the transmission element is elliptical, and a ball in contact with the outer peripheral wall of the transmission element is embedded in the end of the plug rod away from the piston.

[0011] The present invention is further configured as follows: a first connecting bolt is threadedly mounted on the transmission element, a plurality of connecting screw holes are formed on the support rod, and the number of the connecting screw holes is twice that of the first connecting bolt.

[0012] The present invention is further configured as follows: a connecting column is fixedly installed on the top end of the support rod, the connecting column passes through the mounting seat, the connecting column is fixedly connected to the mounting seat by a second connecting bolt, a connecting hole for the second connecting bolt to pass through is opened on the connecting column, and a handle is fixedly installed on the top end of the connecting column.

[0013] The present invention is further configured as follows: the driving mechanism includes a worm wheel fixedly mounted on the rotating cylinder, a worm arranged on the inner side of the chassis and a motor fixedly mounted on the side wall of the chassis, the worm is meshed with the worm wheel, the output end of the motor is fixedly connected to a driving shaft, and the worm is fixedly mounted on the driving shaft.

[0014] The present invention is further configured as follows: the traction assembly includes a frame and a fertilizer storage box fixedly installed on the frame, the top end of the shunt pipe is connected to a connection port, a side of the fertilizer storage box close to the frame is connected to a flexible infusion tube, and the flexible infusion tube is connected to the connection port, wheels are provided below the frame, and a connecting seat is fixedly installed on a side of the frame away from the frame.

[0015] The present invention is further configured as follows: a connecting rod is rotatably mounted on the side wall of the frame through a pin shaft, a hydraulic cylinder is mounted on the side wall of the frame, one end of the connecting rod is fixedly connected to the side wall of the chassis, and the other end of the connecting rod is hinged to the output end of the hydraulic cylinder.

[0016] In summary, the present invention has the following beneficial effects: the present invention adopts a multi-rotary drill bit parallel structure, a spiral blade is arranged on the outside of each drill bit and a hollow fertilization channel is integrated, and multiple drill bits are realized by a driving mechanism to rotate and drill synchronously, and the fertilization operation can be completed synchronously in the process of the drill bit penetrating into the soil, which completely changes the inefficient mode of traditional equipment that requires repeated plugging and unplugging of pipes. The device adopts an inclined soil entry design combined with a self-rotating rotary drilling mechanism, so that the drill bit can penetrate deep soil with less traction force, and enables the rotary drill bit to move horizontally in the soil in an inclined state. The spiral blades loosen the soil structure synchronously during rotation, which not only reduces mechanical energy consumption, but also avoids the problem of soil compaction caused by traditional vertical insertion of pipes. The telescopic design of the fertilization pipe enables the nozzle to extend out of the cylinder only during operation, and is squeezed out of the cylinder through hydraulic action to avoid soil blockage, and the reliability of the equipment is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention;

[0018] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure inside the chassis of the present invention;

[0020] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0021] Figure 5 It is a structural schematic diagram of the rotary drilling bit and the driving mechanism of the present invention;

[0022] Figure 6It is a structural schematic diagram of the transmission assembly and the fertilization assembly of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the support rod and the transmission element of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the fertilization assembly and the transmission element of the present invention;

[0025] Fig. 9 It is a structural schematic diagram of the fertilization assembly of the present invention;

[0026] Fig.10 It is a schematic diagram of the structure of the fertilizer pipe, piston and plug rod of the present invention.

[0027] In the figure: 1, chassis; 2, shunt pipe; 201, connection port; 3, rotary drill bit; 301, spiral blade; 4, rotating cylinder; 5, fertilization assembly; 501, cylinder; 502, piston; 503, plug rod; 504, ball; 505, fertilization pipe; 5051, communication channel; 5052, liquid outlet; 5053, liquid inlet; 506, spring; 507, liquid inlet cylinder; 6, transmission assembly; 601, support rod; 602, transmission element; 603, first connecting bolt; 604, connecting screw hole; 605, connecting column; 606, connecting hole; 607, handle; 7, worm gear; 8, worm; 9, motor; 10, drive shaft; 11, mounting seat; 12, fertilizer storage box; 13, flexible infusion tube; 14, connecting seat; 15, frame; 16, wheel; 17, connecting rod; 18, pin shaft; 19, hydraulic cylinder; 20, second connecting bolt. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] See also Figures 1 to 10In an embodiment of the present invention, a deep soil improvement and fertilization device for Chinese medicinal herb planting includes a chassis 1, a shunt pipe 2 fixedly installed inside the chassis 1, and a plurality of rotary drilling bits 3 arranged below the chassis 1, wherein a spiral blade 301 is arranged on the outer side of the rotary drilling bit 3, and a traction assembly for driving the chassis 1 to move is arranged on one side of the chassis 1, and a plurality of rotary drilling bits 3 are arranged in parallel with each other, and the rotary drilling bits 3 are hollow structures, and a rotating cylinder 4 is fixedly connected to the top of the rotary drilling bit 3, and the top of the rotating cylinder 4 is rotatably connected to the shunt pipe 2 and communicated with each other, and a driving mechanism for driving the plurality of rotating cylinders 4 to rotate synchronously is arranged in the chassis 1, and the rotary drilling bits 3 are provided with a plurality of rotating cylinders 4. A plurality of fertilization assemblies 5 are equidistantly installed from top to bottom, and the fertilization assemblies 5 include a cylinder 501 fixedly installed on the rotary drilling bit 3 and a piston 502 slidably installed inside the cylinder 501. The main body of the piston 502 is made of rubber material to improve the sealing performance. A plug rod 503 is fixedly installed on one side of the piston 502, and a fertilizer pipe 505 is fixedly installed on the other side of the piston 502. A spring 506 is arranged inside the cylinder 501, and the piston 502 is elastically connected to the inner side wall of the cylinder 501 through the spring 506. An extension groove for the fertilizer pipe 505 to extend out is provided on one side of the cylinder 501 away from the plug rod 503. Both sides of the fertilizer pipe 505 The ends of the fertilizer pipe 505 are respectively provided with a liquid inlet 5053 and a liquid outlet 5052, and a connecting passage 5051 for connecting the liquid inlet 5053 and the liquid outlet 5052 is provided inside the fertilizer pipe 505. When the fertilizer assembly 5 is not working, the end of the fertilizer pipe 505 is arranged in an extension groove opened at one end of the cylinder 501 away from the plug rod 503, and the cylinder 501 is connected with a liquid inlet cylinder 507, and a one-way valve is arranged in the liquid inlet cylinder 507. The one-way valve allows the solution in the inner cavity of the rotary drilling bit 3 to enter the cylinder 501 through the liquid inlet cylinder 507, while the solution in the cylinder 501 cannot enter the interior of the rotary drilling bit 3 through the liquid inlet cylinder 507. A transmission assembly 6 is provided inside the chassis 1. The transmission assembly 6 drives the plug rod 503 to move back and forth when the rotary drilling bit 3 rotates, so that the piston 502 moves back and forth to draw the solution inside the rotary drilling bit 3 into the cylinder 501 and then discharge it through the fertilizer pipe 505. According to needs, a land leveling device can be installed on the rear side of the chassis 1 to level the soil produced by rotary drilling, or it can be planted directly in the gully produced by rotary drilling without leveling, eliminating the subsequent ditching process. When the angle between the rotary drilling bit 3 and the ground is below 45°, the drilling inclination angle is large, so that the drill hole produced during the movement of the rotary drilling bit 3 will collapse naturally, and there is no need to backfill the gully at this time;The solution refers to liquid fertilizer, and can also be other agents that can improve the soil. When fertilizing, the liquid fertilizer is input into the shunt pipe 2, and then input into the interior of the rotary drill bit 3 through the rotating cylinder 4. The driving mechanism drives multiple rotating cylinders 4 to rotate synchronously, thereby driving multiple rotary drill bits 3 to rotate synchronously, and the position of the rotary drill bit 3 is adjusted by swinging the chassis 1 so that the rotary drill bit 3 is tilted and extended into the soil, so that the rotary drill bit 3 is extended into a deeper position in the soil. During the rotation of the rotary drill bit 3, the transmission component 6 drives the plug rod 503 reciprocates, causing the piston 502 to reciprocate. When the piston 502 moves to the right, the liquid fertilizer in the inner cavity of the rotary drill bit 3 is input into the cylinder 501 through the liquid inlet 5053. When the piston 502 moves to the left, the fertilizer pipe 505 gradually extends from the cylinder 501, causing the opening of the liquid outlet 5052 to open, thereby causing the liquid fertilizer in the cylinder 501 to be output through the liquid inlet 5053, the connecting channel 5051 and the liquid outlet 5052, so that the output liquid fertilizer is dispersed in the soil. ;

[0030] This solution significantly improves the fertilization efficiency and soil improvement effect through innovative structural design and multi-component collaborative operation, and effectively solves the technical bottlenecks of cumbersome operation and low efficiency of traditional plug-in fertilization devices. Its core advantages are reflected in the following aspects: First, the device adopts a parallel structure of multiple rotary drill bits 3. A spiral blade 301 is set on the outside of each drill bit and a hollow fertilization channel is integrated. The driving mechanism enables multiple drill bits to rotate synchronously and drill down. The fertilization operation can be completed synchronously while the drill bits penetrate deep into the soil, which completely changes the inefficient mode of traditional equipment that requires repeated plugging and unplugging of the pipe. When the rotary drill bit 3 continues to advance into the deep soil under the action of the spiral blade 301, its built-in transmission component 6 drives the plug rod 503 to reciprocate through mechanical linkage. The movement drives the piston 502 to form periodic negative pressure suction and positive pressure discharge in the cylinder 501, realizing the dynamic transportation process of liquid fertilizer from the shunt pipe 2 → rotating cylinder 4 → inner cavity of the rotary drilling bit 3 → liquid inlet cylinder 507 → cylinder 501 → fertilizer pipe 505. This design enables the drill bit to move horizontally in the soil, and can achieve accurate fertilization at different depths through multiple fertilization components 5 arranged in layers. The fertilizer is diffused in three dimensions at multiple points and multiple levels through the liquid outlet 5052, which significantly improves the uniformity of fertilizer penetration. Secondly, the device adopts an inclined soil entry design combined with a self-rotating rotary drilling mechanism, so that the drill bit can penetrate deep soil with less traction, and enables the rotary drilling bit 3 to move horizontally in the soil in an inclined state. The spiral blade 301 rotates The soil structure is loosened synchronously during the rotation process, which not only reduces mechanical energy consumption, but also avoids the problem of soil compaction caused by traditional vertical insertion. By configuring 3-5 rotary drilling drills 3 working in parallel, multiple rows of synchronous deep fertilization can be completed in a single stroke, and the operating efficiency is increased by more than 300% compared with single-tube equipment. Moreover, the device has strong expandability, and can not only carry out deep fertilization operations alone, but also install a land preparation device at the rear of the chassis 1 to realize the integrated operation of rotary drilling, layered fertilization, and soil backfilling and leveling. It is especially suitable for the furrow cultivation mode required for the cultivation of Chinese medicinal materials. The furrows formed by rotary drilling are directly used for sowing, eliminating the traditional secondary trenching process and reducing labor intensity by about 40%; the telescopic design of the fertilization pipe 505 allows the nozzle to extend out of the cylinder barrel 501 only during operation. , and is squeezed out from the cylinder 501 through hydraulic action to avoid soil clogging, and the reliability of the equipment is significantly improved. The overall device realizes intelligent matching of rotary drilling depth and fertilizer amount through precise coordination of mechanical transmission and fluid control. The drilling angle (30-70° adjustable) and rotation speed can be adjusted according to different varieties of Chinese medicinal materials to meet the customized fertilization needs within the depth range of 10-50cm. This technical solution fundamentally changes the operating paradigm of traditional layered fertilization, integrating discrete drilling, fertilization, and backfilling processes into a continuous process, shortening the fertilization operation time per unit area to 1 / 4 of the original time. At the same time, through the three-dimensional improvement of deep soil, it effectively promotes the development of the root system of Chinese medicinal materials, providing innovative technical support for improving the quality and yield of medicinal materials.

[0031] In this embodiment, preferably, the transmission assembly 6 includes a support rod 601 and a plurality of transmission elements 602 sleeved on the support rod 601, the support rod 601 is arranged in the hollow rotary drill bit 3, the top end of the diversion pipe 2 is fixedly installed with a mounting seat 11, the top end of the support rod 601 is connected to the mounting seat 11, the outer peripheral wall of the transmission element 602 is elliptical, and the end of the plug rod 503 away from the piston 502 is embedded with a ball 504 in contact with the outer peripheral wall of the transmission element 602; when the rotary drill bit 3 rotates, the support rod 601 remains fixed, so that the transmission element 602 remains fixed, and then the ball 504 at the end of the plug rod 503 moves along the elliptical outer peripheral wall of the transmission element 602, so that the plug rod 503 reciprocates and telescopes, thereby realizing the reciprocating movement of the plug rod 503 driven by the transmission assembly 6.

[0032] In the present embodiment, preferably, a first connecting bolt 603 is threadedly installed on the transmission element 602, and a plurality of connecting screw holes 604 are provided on the support rod 601, and the number of the connecting screw holes 604 is twice that of the first connecting bolts 603, so that the position of the transmission element 602 can be adjusted. When the transmission element 602 is installed to the connecting screw hole 604 above it, the ball 504 on one side thereof does not contact the outer peripheral wall of the transmission element 602, so that the fertilization component 5 at this location does not perform fertilization, thereby making the fertilization depth adjustable. For example, if fertilization is required from the surface layer to the deep soil layer, all the fertilization components 5 are in operation. If only the deep soil layer needs to be fertilized, only the lowest few fertilization components 5 are in operation, so as to achieve precise control of the fertilization depth.

[0033] In this embodiment, preferably, a connecting column 605 is fixedly installed on the top of the support rod 601, and the connecting column 605 passes through the mounting seat 11. The connecting column 605 is fixedly connected to the mounting seat 11 through a second connecting bolt 20, and a connecting hole 606 is opened on the connecting column 605 for the second connecting bolt 20 to pass through, and a handle 607 is fixedly installed on the top of the connecting column 605; the support rod 601 is connected to the mounting seat 11 through the second connecting bolt 20 and the connecting column 605, so that the support rod 601 can be disassembled. After the support rod 601 is disassembled, the position of the transmission element 602 can be adjusted to control the fertilization depth.

[0034] In this embodiment, preferably, the driving mechanism includes a worm wheel 7 fixedly mounted on the rotating cylinder 4, a worm 8 arranged on the inner side of the chassis 1 and a motor 9 fixedly mounted on the side wall of the chassis 1, the worm 8 is meshed with the worm wheel 7, and the output end of the motor 9 is fixedly connected to a driving shaft 10, and the worm 8 is fixedly mounted on the driving shaft 10; the motor 9 can drive the driving shaft 10 to rotate, and when the driving shaft 10 rotates, the worm 8 is driven to rotate, and when the worm 8 rotates, the worm wheel 7 is driven to rotate, thereby driving the rotating cylinder 4 to rotate, so as to realize driving the rotating cylinder 4 to rotate through the driving mechanism, and then driving the rotary drill bit 3 to rotate.

[0035] In the present embodiment, preferably, the traction assembly includes a frame 15 and a fertilizer storage box 12 fixedly mounted on the frame 15, a connection port 201 is provided at the top end of the shunt pipe 2, a flexible infusion tube 13 is provided on the side of the fertilizer storage box 12 close to the chassis 1, and the flexible infusion tube 13 is connected to the connection port 201, a wheel 16 is provided below the frame 15, and a connecting seat 14 is fixedly installed on the side of the frame 15 away from the chassis 1; when in specific use, the connecting seat 14 is connected to the rear of the agricultural vehicle, and the installation height of the connecting seat 14 installed on the agricultural vehicle can be adjusted, thereby realizing the adjustment of the height of the chassis 1 to increase the adjustment range of the rotary drilling depth, so that the frame 15 is moved by traction of the agricultural vehicle, and then the chassis 1 is driven to move, and when fertilizing, liquid fertilizer is put into the fertilizer storage box 12, and is input into the shunt pipe 2 through the flexible input tube and the connection port 201, and a stirring structure is provided in the fertilizer storage box 12 to stir the liquid fertilizer in the fertilizer storage box 12.

[0036] In this embodiment, preferably, a connecting rod 17 is rotatably installed on the side wall of the frame 15 through a pin 18, and a hydraulic cylinder 19 is installed on the side wall of the frame 15, one end of the connecting rod 17 is fixedly connected to the side wall of the chassis 1, and the other end of the connecting rod 17 is hinged to the output end of the hydraulic cylinder 19; the top of the hydraulic cylinder 19 is rotatably connected to the side wall of the chassis 1, so that when the output end of the hydraulic cylinder 19 is extended, it can drive the end of the connecting rod 17 to rotate downward, and then the other end of the connecting rod 17 is rotated upward, so that the rotary drill bit 3 is pulled out from the soil, and when the output end of the hydraulic cylinder 19 is contracted, it drives the end of the connecting rod 17 to rotate upward, so that the other end of the connecting rod 17 is rotated downward, so that the rotary drill bit 3 extends into the soil, and the insertion depth of the rotary drill bit 3 can be adjusted by controlling the contraction degree of the hydraulic cylinder 19, thereby adjusting the fertilization depth.

[0037] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A deep soil improvement and fertilization device for Chinese medicinal herb planting, comprising a chassis, a shunt pipe fixedly installed inside the chassis, and a plurality of rotary drilling bits arranged below the chassis, wherein a traction assembly for driving the chassis to move is arranged on one side of the chassis, and the device is characterized in that: The rotary drilling bit is a hollow structure, and a rotating cylinder is fixedly connected to the top of the rotary drilling bit, and the top of the rotating cylinder is rotatably connected to the shunt pipe and communicated with each other. A driving mechanism for driving multiple rotating cylinders to rotate synchronously is arranged in the chassis, and multiple fertilization assemblies are equidistantly installed on the rotary drilling bit from top to bottom, and the fertilization assembly includes a cylinder fixedly installed on the rotary drilling bit and a piston slidably installed inside the cylinder, a plug rod is fixedly installed on one side of the piston, and a fertilizer pipe is fixedly installed on the other side of the piston, and a transmission assembly is arranged inside the rotary drilling bit, and the transmission assembly drives the plug rod to reciprocate when the rotary drilling bit rotates, so that the piston reciprocates to draw the solution inside the rotary drilling bit into the cylinder and then discharge it through the fertilizer pipe.

2. The deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 1, characterized in that: A spring is arranged inside the cylinder, and the piston is elastically connected to the inner wall of the cylinder through the spring. An extension groove for extending the fertilizer pipe is provided on the side of the cylinder away from the plug rod, and a liquid inlet and a liquid outlet are respectively provided at both ends of the fertilizer pipe. A connecting channel for connecting the liquid inlet and the liquid outlet is provided inside the fertilizer pipe. When the fertilization assembly is not working, the end of the fertilizer pipe is arranged in the extension groove provided at the end of the cylinder away from the plug rod.

3. A deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 2, characterized in that: The cylinder is connected with a liquid inlet cylinder, and a one-way valve is arranged in the liquid inlet cylinder.

4. The deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 2, characterized in that: The transmission assembly includes a support rod and a plurality of transmission elements sleeved on the support rod, the support rod is arranged in a hollow rotary drill bit, a mounting seat is fixedly installed on the top end of the diversion pipe, the top end of the support rod is connected to the mounting seat, the outer peripheral wall of the transmission element is elliptical, and a ball in contact with the outer peripheral wall of the transmission element is embedded in the end of the plug rod away from the piston.

5. The deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 4, characterized in that: A first connecting bolt is threadedly mounted on the transmission element, and a plurality of connecting screw holes are opened on the support rod, and the number of the connecting screw holes is twice that of the first connecting bolt.

6. The deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 4, characterized in that: A connecting column is fixedly installed on the top of the support rod, and the connecting column passes through the mounting seat. The connecting column is fixedly connected to the mounting seat through a second connecting bolt. A connecting hole for the second connecting bolt to pass through is opened on the connecting column, and a handle is fixedly installed on the top of the connecting column.

7. The deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 1, characterized in that: The driving mechanism includes a worm wheel fixedly mounted on the rotating cylinder, a worm arranged on the inner side of the chassis and a motor fixedly mounted on the side wall of the chassis, the worm is meshed with the worm wheel, the output end of the motor is fixedly connected to the driving shaft, and the worm is fixedly mounted on the driving shaft.

8. The deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 1, characterized in that: The traction assembly includes a frame and a fertilizer storage box fixedly installed on the frame, the top end of the shunt pipe is connected to a connection port, a side of the fertilizer storage box close to the frame is connected to a flexible infusion tube, and the flexible infusion tube is connected to the connection port, wheels are arranged below the frame, and a connecting seat is fixedly installed on a side of the frame away from the frame.

9. The deep soil improvement and fertilization device for Chinese medicinal herb planting according to claim 8, characterized in that: A connecting rod is rotatably mounted on the side wall of the frame through a pin shaft, a hydraulic cylinder is mounted on the side wall of the frame, one end of the connecting rod is fixedly connected to the side wall of the chassis, and the other end of the connecting rod is hinged to the output end of the hydraulic cylinder.

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