Fertilizing and ditching equipment of moisture-proof and adhesion-proof corn planter
By designing fertilization and trenching equipment that prevents moisture and adhesion, using inclined disc trench plows and retaining plates, combined with external and internal soil cleaning devices, the problem of low accuracy in digging of corn seeders in heavy soil is solved. It achieves efficient seeding and fertilization effects in clay soil.
Patent Information
- Application Number
- CN202421556788.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-07-03
AI Technical Summary
In the case of high viscosity soil or soil moisture, the trenching mechanism of the corn seeder is prone to stick to the soil, resulting in low accuracy of the trenching operation, affecting the seeding quality and yield.
A kind of fertilization and trenching equipment that prevents moisture and adherence is designed, including fertilization and trenching handles, fertilization and trenching equipment shafts, disc trenching plows, retaining plates, disc trenching plows and external soil clearing device and internal soil clearing device. The inclined disc trench plow and the retaining plate with narrow front and wide back are combined with the outer soil cleaner and the inner soil cleaner to realize real-time cleaning of the adhered soil, ensuring the accuracy of the trench operation and the uniform application of fertilizers.
It effectively prevents the ditches from adhering to soil, ensures the accuracy of fertilization and trenching and uniform dispersion of fertilizers, and improves the quality and yield of corn seeding, especially under farming conditions or heavy soil conditions.
Smart Images
Figure CN222263600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to fertilizer ditching equipment of a moisture-proof and adhesion-proof corn planter, belonging to the technical field of agricultural machinery corn planter machinery. Background Art
[0002] At present, corn sowing technology is a relatively mature technology, which generally includes a frame, a fertilizer box, a fertilizer amount regulator, a fertilizer furrowing mechanism, a seed box, a seed amount regulator, a sowing furrowing mechanism, a sowing covering device and a suppression device, etc. A fertilizer box is arranged on the frame, a fertilizer furrowing mechanism is arranged under the fertilizer box, a seed box is arranged above the frame behind the fertilizer box, a sowing furrowing mechanism is arranged under the seed box and behind the fertilizer furrowing mechanism, a sowing covering device is arranged behind the sowing furrowing mechanism, and a suppression device is arranged behind the sowing covering device; the ultimate goal is to use a tractor as the power to pull the corn planter to complete the processes of furrowing, fertilizing, sowing, covering, and suppressing at one time, thereby realizing mechanized corn sowing and achieving the purpose of saving labor and increasing efficiency. However, these processes all require sowing operations when the soil moisture content is 75-80%. When corn sowing operations are completed in sandy loam under such moisture content, there will be no soil adhesion to the various parts of the corn planter. If the corn planter is operated in heavy clay soil or when the soil moisture content is slightly higher in order to seize the farming time, different amounts of soil will adhere to the tail of the trenching mechanism, which will result in low accuracy of the trenching operation of the trenching mechanism, causing uneven sowing (application) of seeds (fertilizers) by the machine, directly affecting the sowing quality of corn and ultimately affecting the corn yield. Utility Model Content
[0003] The purpose of the utility model is to provide a fertilization and furrowing device for a corn planter with moisture and adhesion prevention, which can prevent the corn planter from adhering to mud on the furrowing mechanism after operation in heavy clay soil or when the soil moisture content is slightly high, and can clean the operating parts of the operating machine in time to ensure the operation quality. The utility model is easy to use and has a simple structure, and can solve the above-mentioned problems existing in the background technology.
[0004] The technical solution of the utility model is:
[0005] A fertilizer furrowing device for a moisture-proof and adhesion-proof corn planter comprises a fertilizer furrowing handle, a fertilizer furrowing device shaft, a disc furrowing plow, a retaining plate, an outer soil cleaner of the disc furrowing plow and an inner soil cleaner of the disc furrowing plow. The upper end of the fertilizer furrowing handle is connected to a fertilizer furrowing handle mounting seat and a frame through a U-shaped card. A fertilizer furrowing handle mounting seat is provided on the frame. Both sides of the lower end of the fertilizer furrowing handle are welded to the fertilizer furrowing device shaft. Disc furrowing plows are respectively installed on the fertilizer furrowing device shafts on both sides. The two disc furrowing plows are not parallel to each other and are arranged obliquely with respect to the forward direction. The space between the front parts of the two disc furrowing plows is narrower than that at the rear. A retaining plate mounting seat is provided in the middle part of the fertilizer furrowing handle. The retaining plate is installed on the retaining plate mounting seat. The retaining plate is located at the The retaining plate is an arc-shaped retaining plate with a narrow front and a wide rear, the narrow front part of the retaining plate covers the narrow space between the front parts of the two disc furrowing plows, and the wide rear part of the retaining plate covers the wide space between the rear parts of the two disc furrowing plows to prevent soil from entering between the two disc furrowing plows; an external soil cleaning device mounting hole is arranged at the rear end of the retaining plate and the external soil cleaning device is installed; the external soil cleaning device comprises an external soil cleaning device frame and an external soil cleaning plate, the external soil cleaning device frame is a U-shaped card structure, the top of the external soil cleaning device frame is provided with a mounting hole that matches the mounting hole of the external soil cleaning device of the retaining plate, and is fastened and connected by bolts, and the external soil cleaning plates are respectively installed on the two U-shaped legs of the external soil cleaning device frame, and the two external soil cleaning plates are respectively cut at a 30-degree angle with the outer surfaces of the two disc furrowing plows, and the two external soil cleaning plates form an inward eight-shaped arrangement; The end of the retaining plate is bent downward and enters the wider space between the rear parts of the two disc furrowing plows. The bent end of the retaining plate forms a reserved horizontal plate. The reserved horizontal plate is provided with an inner soil cleaner installation hole to install the inner soil cleaner together. The structure of the inner soil cleaner is the same as that of the outer soil cleaner, except that: the two inner soil cleaner plates are respectively cut at a 30-degree angle with the inner surfaces of the two disc furrowing plows, and the two inner soil cleaner plates are arranged in an outward figure eight. The function of the inner soil cleaner and the outer soil cleaner is to clean the soil adhered to the two disc furrowing plows in real time under conditions of high soil moisture or heavy soil viscosity, so as to provide sufficient soil for covering and pressing the fertilizer.
[0006] Furthermore, the ends of the two U-shaped legs of the external soil cleaning device frame are respectively provided with external soil cleaning board mounting positions, and the mounting pin shaft passes through the external soil cleaning board mounting position, the external soil cleaning board mounting sleeve and the suppression spring, so that the two external soil cleaning boards and the two disc furrowing plows form a 30-degree cutting angle.
[0007] Furthermore, the outer soil cleaning plate is a ladder-shaped plate. During use, the short side of the soil cleaning plate is connected to the outer soil cleaning frame through an installation pin, and the long side of the soil cleaning plate is meshed with the disc furrowing plow at a 30-degree angle through a pressing spring. Two outer soil cleaning plate mounting sleeves are arranged on the short side of the outer soil cleaning plate. The outer soil cleaning plate mounting sleeves are formed by rolling, and there is a hollow space between the two outer soil cleaning plate mounting sleeves for pressing the spring one mounting position. When in use, the installation pin passes through the outer soil cleaning plate mounting position, the outer soil cleaning plate mounting sleeve and the pressing spring one are used in a matching combination. During the matching combination process, one pressure foot of the pressing spring one is pressed on the outer soil cleaning plate, and the other pressure foot is pressed on the outer soil cleaning device frame. The pressure of the pressing spring one is used to make the long side of the outer soil cleaning plate better meshed with the disc furrowing plow, so that a better soil cleaning effect can be achieved even when a large amount of soil is adhered to the disc furrowing plow.
[0008] Furthermore, the inner soil cleaner includes an inner soil cleaner mounting plate, an inner soil cleaner mounting position, an inner soil cleaner mounting pin, an inner soil cleaner plate, a second suppression spring and a suppression spring mounting hole. The second inner soil cleaner mounting hole is firmly matched with the first inner soil cleaner mounting hole of the retaining plate by bolts. The inner soil cleaner plate is cut at a 15-degree angle with the disc furrowing plow, and its function is to remove the soil adhering to the inner sides of the two disc furrowing plows.
[0009] Furthermore, two inner cleaning device mounting holes and two groups of inner cleaning board mounting positions are provided in the middle position of the cleaning device mounting plate for installing the inner cleaning board; the inner cleaning board is completely consistent with the outer cleaning board in shape, structure and material, the difference is that a pressing spring mounting hole is provided at the mounting sleeve on the short side of the inner cleaning board, which is used to fix one pressing foot of the pressing spring two, and the other pressing foot is pressed on the inner cleaning device mounting plate. The assembly method is the same as that of the outer cleaning board. After the two inner cleaning boards are assembled, they form an "eight" shape and are tangent to the two disc furrowing plows.
[0010] Furthermore, the top of the retaining plate is provided with a debris clearing hole, a fertilizer furrowing handle hole, a retaining plate mounting hole, a fertilizer pipe hole and a retaining plate external soil cleaner mounting hole in sequence from front to back, and the maximum opening of the two disc furrowing plows is 110 degrees, and the soil cannot enter this position. The retaining plate mounting seat mounting hole is provided on the retaining plate mounting seat, and the retaining plate is installed by self-fixing screws. The fertilizer furrowing handle is a square tube.
[0011] Furthermore, the debris clearing hole is in front of the fertilizer furrowing handle hole, and is used to clean the debris at the front end of the two disc furrowing plows to ensure the quality of the furrowing operation. The fertilizer furrowing handle hole is behind the debris clearing hole, and its size is slightly larger than the fertilizer furrowing handle, so that the fertilizer furrowing handle can pass through the retaining plate conveniently; the retaining plate mounting hole is at the rear side of the fertilizer furrowing handle hole and is consistent with the retaining plate mounting hole, so as to ensure the stability and reliability of the retaining plate; the fertilizer pipe hole is behind the retaining plate mounting hole, and its size is slightly larger than the fertilizer pipe, so as to facilitate the replacement and maintenance of the fertilizer pipe; the retaining plate outer soil cleaner mounting hole is behind the fertilizer pipe hole and at the top of the retaining plate end, and is a double hole for installing the outer soil cleaner of the disc furrowing plow; the retaining plate inner soil cleaner mounting hole is in the middle of the horizontal plate reserved at the end of the retaining plate, and is an upper and lower double hole for installing the inner soil cleaner of the disc furrowing plow.
[0012] The function of the fertilizer trenching equipment of the utility model is to ensure that a standard fertilizer trench is opened when the fertilizer trenching equipment is in operation, and that the fertilizer is dispersed and spread in the fertilizer trench. At the same time, it ensures that a large amount of soil will not adhere to the fertilizer trenching equipment when the soil moisture is heavy or the soil is heavy, and provides sufficient soil for fertilization and covering, so as to effectively bury the fertilizer.
[0013] The beneficial effects of the utility model are as follows: during the operation of sowing corn in a rush of farming season or on heavy soil, the soil adhering to the trenching parts can be cleaned in time, the cleanliness of the machine parts can be guaranteed, and the operation quality can be ensured. The best machine operation quality is the key to the best profit. The utility model is easy to use and has a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of an embodiment of the utility model;
[0015] Figure 2 A schematic diagram of a retaining plate according to an embodiment of the present utility model;
[0016] Figure 3 This is a schematic diagram of an internal soil cleaning device installation plate according to an embodiment of the utility model;
[0017] Figure 4 A schematic diagram of an internal soil cleaning device according to an embodiment of the utility model;
[0018] Figure 5 A schematic diagram of a disc furrowing plow according to an embodiment of the utility model;
[0019] Figure 6 This is a schematic diagram of an embodiment of the utility model installed on a seed drill;
[0020] Figure 7 This is a three-dimensional schematic diagram of an embodiment of the utility model installed on a seed drill;
[0021] In the figure: suspension 1, frame 2, fertilizer box 3, fertilizer amount regulator 4, fertilizer furrowing equipment 5 (the utility model), seed box 6, seed amount regulator 7, sowing furrowing equipment 8, sowing cover 9, fertilizer power transmission wheel 10, fertilizer power transmission chain 11, fertilizer power wheel 12, sowing power transmission wheel 13, sowing power transmission chain 14, sowing power wheel 15, total power transmission wheel 16, suppression regulator 17, suppression equipment 18, total power transmission shaft 19, fertilizer furrowing handle 22, fertilizer furrowing equipment shaft 23, disc furrowing plow 24, retaining plate 25, disc furrowing plow outer soil cleaner 26, inner soil cleaner 27, fertilizer Trenching equipment mounting seat 28, retaining plate mounting seat 29, retaining plate mounting hole 30, debris clearing hole 31, fertilization trenching handle hole 32, retaining plate mounting hole 33, fertilizer pipe hole 34, external soil cleaner mounting hole 35, reserved cross plate 36, internal soil cleaner mounting hole 1 37, external soil cleaner frame 38, external soil cleaner plate 39, soil cleaner plate mounting position 40, mounting pin 41, suppression spring 1 42, mounting hole 43, external soil cleaner plate mounting sleeve 44, internal soil cleaner mounting plate 45, internal soil cleaner mounting position 46, internal soil cleaner mounting pin 47, internal soil cleaner plate 48, suppression spring 2 49, suppression spring mounting hole 50, internal soil cleaner mounting hole 2 51. DETAILED DESCRIPTION
[0022] The present invention will be further described below through embodiments in conjunction with the accompanying drawings.
[0023] A fertilizer furrowing device for a moisture-proof and adhesion-proof corn planter comprises a fertilizer furrowing handle 22, a fertilizer furrowing device shaft 23, a disc furrowing plow 24, a retaining plate 25, an outer soil cleaner 26 of the disc furrowing plow and an inner soil cleaner 27 of the disc furrowing plow. The upper end of the fertilizer furrowing handle 22 is connected to a fertilizer furrowing handle mounting seat 28 and a frame 2 through a U-shaped card. The frame 2 is provided with a fertilizer furrowing handle mounting seat 28. Both sides of the lower end of the fertilizer furrowing handle 22 are The fertilization ditching equipment shaft 23 is welded and connected, and disc furrowing plows 24 are respectively installed on the fertilization ditching equipment shafts 23 on both sides. The two disc furrowing plows 24 are not parallel to each other and are arranged obliquely with the forward direction. The front space between the two disc furrowing plows is narrower, and the rear space is wider; a retaining plate mounting seat 29 is provided in the middle of the fertilization ditching handle 22, and a retaining plate 25 is installed on the retaining plate mounting seat 29. The retaining plate 25 is located at the disc furrowing plow 2 4; the retaining plate 25 is an arc-shaped retaining plate with a narrow front and a wide rear, the narrow front part of the retaining plate 25 covers the narrow space between the front parts of the two disc furrowing plows, and the wide rear part of the retaining plate 25 covers the wide space between the rear parts of the two disc furrowing plows to prevent soil from entering between the two disc furrowing plows 24; the rear end of the retaining plate 25 is provided with an external soil cleaning device mounting hole 35 and an external soil cleaning device 26 is installed; the external soil cleaning device 26 includes an external soil cleaning device frame 38 and an external soil cleaning plate 39, the external soil cleaning device frame 38 is a U-shaped card structure, the top of the external soil cleaning device frame 38 is provided with a mounting hole 43 that matches the retaining plate external soil cleaning device mounting hole 35, and is fastened by bolts, and the external soil cleaning plates 39 are respectively installed on the two U-shaped legs of the external soil cleaning device frame 38, and the two external soil cleaning plates 39 are respectively cut at a 30-degree angle with the outer surfaces of the two disc furrowing plows 24, and the two external soil cleaning plates 39 form an inward eight-shaped arrangement; The end of the retaining plate 25 is bent downward to enter the wider space between the rear parts of the two disc furrowing plows. The end of the bent retaining plate forms a reserved transverse plate 36. The reserved transverse plate 36 is provided with an inner soil cleaning device mounting hole 37 and an inner soil cleaning device 27 is mounted. The structure of the inner soil cleaning device 27 is the same as that of the outer soil cleaning device 26, except that: the two inner soil cleaning plates 48 are respectively cut at a 30-degree angle with the inner surfaces of the two disc furrowing plows 24, and the two inner soil cleaning plates 48 are arranged in an outward figure eight. The function of the inner soil cleaning device 27 and the outer soil cleaning device 26 is to clean the soil adhered to the two disc furrowing plows 24 in real time under high soil moisture conditions or heavy soil viscosity conditions, so as to provide sufficient soil for covering and pressing the fertilizer.
[0024] The ends of the two U-shaped legs of the outer soil cleaning device frame 38 are respectively provided with outer soil cleaning board mounting positions 40, and the mounting pin 41 passes through the outer soil cleaning board mounting position 40, the outer soil cleaning board mounting sleeve 44 and the suppression spring 42 are matched and combined to make the two outer soil cleaning boards 39 and the two disc furrowing plows 24 form a 30 degree cutting angle.
[0025] The outer soil cleaning plate 39 is a ladder-shaped plate. During use, the short side of the soil cleaning plate 39 is connected to the outer soil cleaning frame 38 through the installation pin 41, and the long side of the soil cleaning plate 39 is meshed with the disc furrowing plow 24 at a 30-degree angle through the pressing spring 1 42. Two outer soil cleaning plate mounting sleeves 44 are arranged on the short side of the outer soil cleaning plate 39. The outer soil cleaning plate mounting sleeves 44 are rolled up, and there is a hollow space between the two outer soil cleaning plate mounting sleeves 44 for pressing the spring 1 42 mounting position. When in use, the mounting pin 41 passes through the outer soil cleaning plate mounting position 40, the outer soil cleaning plate mounting sleeve 44 and the pressing spring 1 42 are used in a matching combination. During the matching combination process, one pressure foot of the pressing spring 1 42 is pressed on the outer soil cleaning plate 39, and the other pressure foot is pressed on the outer soil cleaning device frame 38. The pressure of the pressing spring 1 42 makes the long side of the outer soil cleaning plate 39 better meshed with the disc furrowing plow 24. Its function is to achieve a better soil cleaning effect even when a large amount of soil is adhered to the disc furrowing plow 24.
[0026] The inner soil cleaner 27 includes an inner soil cleaner mounting plate 45, an inner soil cleaner mounting position 46, an inner soil cleaner mounting pin 47, an inner soil cleaner plate 48, a second suppression spring 49 and a suppression spring mounting hole 50. The second inner soil cleaner mounting hole 51 is firmly matched with the inner soil cleaner mounting hole 1 37 of the retaining plate 25 by bolts. The inner soil cleaner plate 48 is cut at a 15-degree angle with the disc furrowing plow 24, and its function is to remove the soil adhered to the inner sides of the two disc furrowing plows 24.
[0027] An inner cleaning device mounting hole 2 51 and two sets of inner cleaning plate mounting positions 46 are provided in the middle position of the cleaning device mounting plate 45 for mounting an inner cleaning plate 48; the inner cleaning plate 48 is completely consistent with the outer cleaning plate 39 in shape, structure and material, except that a pressing spring mounting hole 50 is provided at the mounting sleeve on the short side of the inner cleaning plate 48 for fixing one pressing foot of the pressing spring 2 49, and the other pressing foot is pressed on the inner cleaning device mounting plate 45. The assembly method is the same as that of the outer cleaning plate 39. After the two inner cleaning plates 48 are assembled, they form an "eight" shape and are tangent to the two disc furrowing plows 24.
[0028] The top of the retaining plate 25 is provided with a debris clearing hole 31, a fertilizer furrowing handle hole 32, a retaining plate mounting hole 33, a fertilizer pipe hole 34 and a retaining plate outer soil cleaner mounting hole 35 in sequence from front to back. The maximum opening of the two disc furrowing plows 24 is 110 degrees, and the soil cannot enter this position. The retaining plate mounting seat mounting hole 30 is provided on the retaining plate mounting seat 29, and the retaining plate 25 is installed by self-fixing screws. The fertilizer furrowing handle 22 is a square tube.
[0029] The debris clearing hole 31 is located in front of the fertilizing and furrowing handle hole 32 and is a circular hole of ∮10 mm, and is used to clean the debris at the front end of the two disc furrowing plows 24 to ensure the quality of the furrowing operation. The fertilizing furrowing handle hole 32 is behind the debris clearing hole 31, and its size is slightly larger than the fertilizing furrowing handle 22, so that the fertilizing furrowing handle 22 can pass through the retaining plate 25 conveniently; the retaining plate mounting hole 33 is behind the fertilizing furrowing handle hole 32 and is consistent with the retaining plate mounting seat mounting hole 30, so as to ensure the stability and reliability of the retaining plate 25; the fertilizer pipe hole 34 is behind the retaining plate mounting hole 33, and its size is slightly larger than the fertilizer pipe, so as to facilitate the replacement and maintenance of the fertilizer pipe; the retaining plate outer soil cleaner mounting hole 35 is behind the fertilizer pipe hole 34 and at the top of the end of the retaining plate 25, and is a double hole for installing the outer soil cleaner 26 of the disc furrowing plow; the retaining plate inner soil cleaner mounting hole 37 is in the middle position of the horizontal plate 36 reserved at the end of the retaining plate 25, and is an upper and lower double hole for installing the inner soil cleaner 27 of the disc furrowing plow.
[0030] In the embodiments, refer to the attached Figure 6 , 7 The utility model is applied to a corn planter, comprising a frame 2, a fertilizer box 3, a fertilizer amount regulator 4, a fertilizer furrowing device 5, a seed box 6, a seed amount regulator 7, a sowing furrowing device 8, a sowing cover 9, a fertilizer power transmission wheel 10, a fertilizer power transmission chain 11, a fertilizer power wheel 12, a sowing power transmission wheel 13, a sowing power transmission chain 14, a sowing power wheel 15, a total power transmission shaft 16, a suppression regulator 17 and a suppression device 18. A fertilizer box 3 is arranged on the frame 2, and a fertilizer furrowing device 5 (the utility model) is arranged below the fertilizer box 3. A seed box 6 is arranged above the frame 2 behind the fertilizer box 3, and a sowing furrowing device 8 is arranged below the seed box 6 and behind the fertilizer furrowing device 5. A sowing cover 9 is arranged behind the sowing furrowing device 8, and a suppression regulator 17 and a suppression device are arranged behind the sowing cover 9; a three-point suspension 1 is arranged at the front end of the upper part of the frame 2, and a fertilizer box 3 is arranged behind the three-point suspension 1 on the frame 2. The transmission system composed of the fertilization power transmission wheel 10, fertilization power transmission chain 11, fertilization power wheel 12, sowing power transmission wheel 13, sowing power transmission chain 14, sowing power wheel 15, main power transmission wheel 16 and main power transmission shaft 19 of the moisture-proof and adhesion-proof corn planter is a well-known technology in the art.
[0031] The process of sowing corn with moisture prevention and adhesion prevention: The corn seeder with moisture prevention and adhesion prevention is connected to the tractor. First, the seeder performs trenching operations, and then the pressure roller transmits power through the power shaft. The power is transmitted to the fertilizer (seed) power wheel through the power transmission wheel and the power transmission chain. The power wheel drives the fertilizer (seed) through shaft to perform fertilization (sowing) operations. Then, the fertilizer trench is covered with soil by the sowing trenching equipment, and the soil covering device behind the sowing trenching equipment performs soil covering operations. Finally, the suppression equipment performs suppression operations to complete the entire corn sowing operation.
[0032] The three hanging points, frame, fertilizer box, fertilizer amount regulator, seed box, seed amount regulator, sowing cover, fertilizer power transmission wheel, fertilizer power transmission chain, fertilization power wheel, seed amount power transmission wheel, seed amount power transmission chain, seed amount power wheel, total power output wheel and suppression equipment involved in the utility model are all well-known technologies.
Claims
1. A fertilizer ditching device for a moisture-proof and adhesion-proof corn planter, characterized in that: The invention comprises a fertilizing furrowing handle (22), a fertilizing furrowing equipment shaft (23), a disc furrowing plow (24), a soil retaining plate (25), an outer soil cleaner (26) of the disc furrowing plow and an inner soil cleaner (27) of the disc furrowing plow. The upper end of the fertilizing furrowing handle (22) is connected to a fertilizing furrowing handle mounting seat (28) and a frame (2) through a U-shaped card. The frame (2) is provided with a fertilizing furrowing handle mounting seat (28). Both sides of the lower end of the fertilizing furrowing handle (22) are connected to the fertilizing furrowing equipment shaft (23). The fertilizing and furrowing equipment shafts (23) on both sides are respectively installed with disc furrowing plows (24), the two disc furrowing plows (24) are not parallel to each other, and are arranged obliquely with respect to the advancing direction, the front parts of the two disc furrowing plows (24) are relatively narrow in space, and the rear parts are relatively wide; a retaining plate mounting seat (29) is provided in the middle part of the fertilizing and furrowing handle (22), a retaining plate (25) is installed on the retaining plate mounting seat (29), and the retaining plate (25) is located at the high point of the disc furrowing plow (24). The retaining plate (25) is a circular arc retaining plate with a narrow front and a wide rear. The narrow front portion of the retaining plate (25) covers the narrow space between the front parts of the two disc furrowing plows, and the wide rear portion of the retaining plate (25) covers the wide space between the rear parts of the two disc furrowing plows, so as to prevent soil from entering between the two disc furrowing plows (24). The rear end of the retaining plate (25) is provided with an external soil cleaning device installation hole (35) and an external soil cleaning device (26) is installed. The external soil cleaning device (26) includes an external soil cleaning device frame (38). ) and an outer soil cleaning plate (39), the outer soil cleaning device frame (38) being a U-shaped card structure, a mounting hole (43) is provided on the top of the outer soil cleaning device frame (38) to match the mounting hole (35) of the outer soil cleaning device of the retaining plate, and the outer soil cleaning plates (39) are respectively installed on the two U-shaped legs of the outer soil cleaning device frame (38), and the two outer soil cleaning plates (39) are respectively cut at an angle of 30 degrees with the outer surfaces of the two disc furrowing plows (24), and the two outer soil cleaning plates (39) are arranged in an inward eight-shaped manner; The end of the retaining plate (25) is bent downward to enter the wider space between the rear parts of the two disc furrowing plows. The bent end of the retaining plate forms a reserved transverse plate (36). The reserved transverse plate (36) is provided with an inner soil cleaning device mounting hole (37) and the inner soil cleaning device (27) is mounted thereon. The structure of the inner soil cleaning device (27) is the same as that of the outer soil cleaning device (26), except that the two inner soil cleaning plates (48) are respectively cut at an angle of 30 degrees with the inner surfaces of the two disc furrowing plows (24), and the two inner soil cleaning plates (48) are arranged in an outward-facing "eight" shape.
2. The fertilizer ditching equipment for a moisture-proof and adhesion-proof corn planter according to claim 1 is characterized in that: The ends of the two U-shaped legs of the external soil cleaning device frame (38) are respectively provided with external soil cleaning plate mounting positions (40), and the mounting pin shaft (41) passes through the external soil cleaning plate mounting position (40), the external soil cleaning plate mounting sleeve (44) and the pressing spring 1 (42) to form a matching combination, so that the two external soil cleaning plates (39) and the two disc furrowing plows (24) form a 30 degree cutting angle.
3. The fertilizer ditching equipment for a moisture and adhesion prevention corn planter according to claim 2 is characterized in that: The outer cleaning plate (39) is a ladder-shaped plate.
4. The fertilizer ditching equipment for a moisture and adhesion prevention corn planter according to claim 3 is characterized by: The inner soil cleaning device (27) comprises an inner soil cleaning device mounting plate (45), an inner soil cleaning device mounting position (46), an inner soil cleaning device mounting pin (47), an inner soil cleaning device plate (48), a second pressing spring (49) and a pressing spring mounting hole (50). The second inner soil cleaning device mounting hole (51) is fastened to the first inner soil cleaning device mounting hole (37) of the retaining plate (25) by bolts for use. The inner soil cleaning device plate (48) forms a 15-degree cutting angle with the disc furrowing plow (24).