Seeding and fertilizing integrated single body with precise seeding depth

Abstract

The utility model discloses a seeding and fertilizing integrated single body with accurate seeding depth. The seeding and fertilizing integrated single body comprises a front cross beam, a longitudinal mounting beam, a fertilizing disc assembly, a seed metering disc assembly, a seed pressing wheel assembly and a soil covering chain, the upper end of the longitudinal mounting beam is mounted on the front cross beam, the longitudinal mounting beam is sequentially provided with a supporting wheel assembly, a fertilizing disc assembly, a seed metering disc assembly and a seed pressing wheel assembly from front to back, an earthing chain is arranged on the rear side of the seed pressing wheel assembly, and the fertilizing disc assembly and the seed metering disc assembly are obliquely arranged and are opposite in inclination direction.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely relates to a precision sowing depth's sowing and fertilizing integration single body. BACKGROUND

[0002] The precision seeding machine as a kind of agricultural machinery for sowing operation, undertakes the role of accurately delivering seed to soil, and most of the existing precision seeding machine is parallel four-bar linkage structure, but the weight of the single body of the machine type is greatly influenced on the precision degree of sowing during operation. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model provides a precision sowing depth's sowing and fertilizing integration single body to solve the above problems in prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0005] According to the first aspect of the utility model, a precision sowing depth's sowing and fertilizing integration single body, including front crossbeam, longitudinal installation beam, fertilizing disc assembly, seed metering disc assembly, seed pressing wheel assembly and soil covering chain, longitudinal installation beam upper end is installed on front crossbeam, longitudinal installation beam is sequentially provided with support wheel assembly, fertilizing disc assembly, seed metering disc assembly and seed pressing wheel assembly from front to back, the rear side of seed pressing wheel assembly is provided with soil covering chain, and fertilizing disc assembly, seed metering disc assembly are all inclined to be arranged and the inclination directions of two are opposite.

[0006] Further, rear crossbeam, front installation component, rear adjusting component and support wheel assembly, front crossbeam is spaced apart in the front of rear crossbeam, the upper end of front installation component is detachably connected on front crossbeam, the lower end of front installation component is installed on longitudinal installation beam through hinge, the upper end of rear adjusting component is adjustably installed on rear crossbeam, and the lower end of rear adjusting component is installed on longitudinal installation beam through hinge.

[0007] Further, front installation component includes front fixed part and front connecting rod, the front end of front fixed part is detachably installed on front crossbeam, the upper end of front connecting rod is hinged on front fixed part, and the lower end of front connecting rod is connected with longitudinal installation beam through hinge.

[0008] Further, rear adjusting component includes elastic element, adjusting plate body, cam fixed part and clamping protrusion, the lower end of elastic element is connected with longitudinal installation beam through hinge, the upper end of elastic element is hinged with the front end of adjusting plate body, a plurality of adjusting notches are formed in the upper edge of adjusting plate body, clamping protrusion is fixed on the lower surface of rear crossbeam, clamping protrusion is clamped with one adjusting notch, and cam fixed part is used to rotate to limit the cooperation relationship between the adjusting notch of adjusting plate body and clamping protrusion.

[0009] Further, the support wheel assembly comprises a support mounting plate and a support wheel body, the upper end of the support mounting plate is fixed at the front end of the longitudinal mounting beam, the lower end of the support mounting plate is provided with a plurality of support adjusting holes, and the support wheel body is detachably installed in one of the support adjusting holes.

[0010] Further, the fertilizer disc assembly comprises a fertilizer disc, a fertilizer fixing plate, a fertilizer protection plate, a fertilizer adjusting plate, a fertilizer pipe and a fertilizer elbow pipe; the upper end of the fertilizer fixing plate is fixed on the longitudinal mounting beam, the lower end of the fertilizer fixing plate is provided with a plurality of fertilizer adjusting holes distributed vertically, the fertilizer adjusting plate is installed at the lower end of the fertilizer fixing plate through part of the fertilizer adjusting holes, the fertilizer disc is arranged obliquely and rotatably connected to the side surface of the fertilizer adjusting plate, the fertilizer protection plate is also installed on the fertilizer adjusting plate, one edge of the fertilizer protection plate is arranged in close contact with the fertilizer disc, the other edge of the fertilizer protection plate is arranged away from the fertilizer disc and the fertilizer pipe is installed at the edge, and the upper end of the fertilizer pipe is connected with the fertilizer elbow pipe.

[0011] Further, the fertilizer disc assembly further comprises a fertilizer scraping plate; the upper end of the side surface of the fertilizer disc away from the fertilizer pipe is provided with the fertilizer scraping plate in close contact therewith.

[0012] Further, the seed disc assembly comprises a seed disc, a seed fixing plate, a seed adjusting plate, a seed protection plate, a seed pipe and a seed elbow pipe; the upper end of the seed fixing plate is fixed on the longitudinal mounting beam, the lower end of the seed fixing plate is provided with a plurality of seed adjusting holes distributed vertically, the seed adjusting plate is installed at the lower end of the seed fixing plate through part of the seed adjusting holes, the seed disc is arranged obliquely and rotatably connected to the side surface of the seed adjusting plate, the seed protection plate is installed on the seed adjusting plate, one edge of the seed protection plate is arranged in close contact with the seed disc, the other edge of the seed protection plate is arranged away from the seed disc and the seed pipe is installed at the edge, and the upper end of the seed pipe is connected with the seed elbow pipe.

[0013] Further, the seed disc assembly further comprises a seed scraping plate; the upper end of the side surface of the seed disc away from the seed pipe is provided with the seed scraping plate in close contact therewith.

[0014] Further, the seed disc assembly comprises a seed disc, a seed fixing plate, a seed adjusting plate, a seed protection plate, a seed pipe and a seed elbow pipe; the upper end of the seed fixing plate is fixed on the longitudinal mounting beam, the lower end of the seed fixing plate is provided with a plurality of seed adjusting holes distributed vertically, the seed adjusting plate is installed at the lower end of the seed fixing plate through part of the seed adjusting holes, the seed disc is arranged obliquely and rotatably connected to the side surface of the seed adjusting plate, the seed protection plate is installed on the seed adjusting plate, one edge of the seed protection plate is arranged in close contact with the seed disc, the other edge of the seed protection plate is arranged away from the seed disc and the seed pipe is installed at the edge, and the upper end of the seed pipe is connected with the seed elbow pipe.

[0015] Further, it further comprises a soil scraping knife, the soil scraping knife is arranged above and behind the seed wheel body, and the rear side of the soil scraping knife is connected with a soil covering chain.

[0016] Further, the parallel four-bar linkage and the spring are further included; the longitudinal mounting beam is mounted on the front cross beam through the parallel four-bar linkage, the spring is arranged between the upper connecting rod and the lower connecting rod of the parallel four-bar linkage, and the upper end of the spring is further provided with a scale.

[0017] The utility model has the advantages that: the device is a precision seeding and fertilizing integrated single body, realizes precision seeding and fertilizing, improves the growth uniformity of crops, improves the operation efficiency of seeding and fertilizing, has small soil disturbance, and has high mechanization efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a kind of front view of precision seeding and fertilizing integrated single body of some embodiments of the utility model.

[0019] Figure 2 The utility model provides a kind of rear view of precision seeding and fertilizing integrated single body of some embodiments of the utility model.

[0020] Figure 3 The utility model provides a kind of first perspective view of precision seeding and fertilizing integrated single body of some embodiments of the utility model.

[0021] Figure 4 The utility model provides a kind of second perspective view of precision seeding and fertilizing integrated single body of some embodiments of the utility model.

[0022] Figure 5 The utility model provides a kind of top view of precision seeding and fertilizing integrated single body of some embodiments of the utility model.

[0023] Figure 6 The utility model provides a kind of front view of precision seeding and fertilizing integrated single body of some other embodiments of the utility model.

[0024] Figure 7 The utility model provides a kind of perspective view of precision seeding and fertilizing integrated single body of some other embodiments of the utility model.

[0025] In the diagram: 1. Front crossbeam, 2. Rear crossbeam, 3. Front fixing component, 4. Front connecting rod, 5. Hinge, 6. Elastic element, 7. Adjusting plate, 8. Adjustment notch, 9. Cam fixing component, 10. Snap-fit ​​protrusion, 11. Longitudinal mounting beam, 12. Support mounting plate, 13. Support wheel, 14. Support adjustment hole, 15. Fertilizer disc, 16. Fertilizer fixing plate, 17. Fertilizer adjustment hole, 18. Fertilizer guard plate, 19. Fertilizer adjustment plate, 20. 21. Fertilizer pipe, 22. Fertilizer scraper, 23. Seed metering disc, 24. Seed metering scraper, 25. Seed metering fixing plate, 26. Seed metering adjustment plate, 27. Seed metering adjustment hole, 28. Seed protection plate, 29. Seed metering pipe, 30. Seed metering bend, 31. Seed pressing installation plate, 32. Angle adjustment plate, 33. Long slot, 34. Seed pressing adjustment plate, 35. Seed pressing wheel, 36. Soil covering chain, 37. Parallel four-bar linkage, 38. Spring. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1

[0028] like Figures 1 to 5 As shown, a precision sowing and fertilization integrated unit in the first aspect embodiment of this utility model includes a front crossbeam 1, a longitudinal mounting beam 11, a fertilization disc assembly, a seed metering disc assembly, a seed pressing wheel assembly, and a soil covering chain 36. The upper end of the longitudinal mounting beam 11 is mounted on the front crossbeam 1. The longitudinal mounting beam 11 is provided with a support wheel assembly, a fertilization disc assembly, a seed metering disc assembly, and a seed pressing wheel assembly in sequence from front to back. A soil covering chain 36 is provided on the rear side of the seed pressing wheel assembly. The fertilization disc assembly and the seed metering disc assembly are both inclined and their inclination directions are opposite.

[0029] The technical effects achieved by the above embodiments are as follows: This device is a precision-depth integrated sowing and fertilization unit, which realizes the precision of sowing and fertilization, improves the uniformity of crop growth, improves the efficiency of sowing and fertilization operations, minimizes soil disturbance, and has high mechanization efficiency.

[0030] Example 2

[0031] like Figures 1 to 5As shown, a precision seeding and fertilization integrated unit includes all the contents of Example 1, plus a rear crossbeam 2, a front mounting component, a rear adjustment component, and a support wheel component; the front crossbeam 1 is positioned in front of the rear crossbeam 2 at intervals, the upper end of the front mounting component is detachably connected to the front crossbeam 1, and the lower end of the front mounting component is mounted on the longitudinal mounting beam 11 via a hinge 5, the upper end of the rear adjustment component is adjustablely mounted on the rear crossbeam 2, and the lower end of the rear adjustment component is mounted on the longitudinal mounting beam 11 via a hinge 5.

[0032] Example 3

[0033] like Figures 1 to 5 As shown, a precision seeding and fertilization integrated unit includes all the contents of Example 2. In addition, the front mounting component includes a front fixing member 3 and a front connecting rod 4. The front end of the front fixing member 3 is detachably mounted on the front crossbeam 1. The upper end of the front connecting rod 4 is hinged to the front fixing member 3. The lower end of the front connecting rod 4 is connected to the longitudinal mounting beam 11 through a hinge 5.

[0034] Optionally, the rear adjustment assembly includes an elastic element 6, an adjustment plate 7, a cam retainer 9, and a snap-fit ​​protrusion 10. The lower end of the elastic element 6 is connected to the longitudinal mounting beam 11 via a hinge 5, and the upper end of the elastic element 6 is hinged to the front end of the adjustment plate 7. The upper edge of the adjustment plate 7 has multiple adjustment notches 8. The snap-fit ​​protrusion 10 is fixed to the lower surface of the rear crossbeam 2 and engages with one of the adjustment notches 8. The cam retainer 9 is used to limit the engagement between the adjustment notch 8 and the snap-fit ​​protrusion 10 of the adjustment plate 7 after rotation. The elastic element 6 can be a spring, gas spring, electric push rod, or hydraulic cylinder, etc.

[0035] Optionally, the support wheel assembly includes a support mounting plate 12 and a support wheel body 13. The upper end of the support mounting plate 12 is fixed to the front end of the longitudinal mounting beam 11, and the lower end of the support mounting plate 12 is provided with a plurality of support adjustment holes 14. The support wheel body 13 is detachably installed in one of the support adjustment holes 14, and the plurality of support adjustment holes 14 extend in the vertical direction.

[0036] The technical effects achieved by the above embodiments are as follows: by setting the front fixing part 3 and the front connecting rod 4, the swing of the single unit is realized; by setting the elastic element 6, the adjusting plate 7, the cam fixing part 9 and the snap-fit ​​protrusion 10, the sowing height of the single unit is adjusted; by setting the support mounting plate 12 and the support wheel 13, a good single unit support effect is achieved.

[0037] Example 4

[0038] like Figures 1 to 5As shown, a precision-depth sowing and fertilization integrated unit includes all the contents of Example 3. In addition, the fertilization disc assembly includes a fertilization disc 15, a fertilization fixing plate 16, a fertilizer protection plate 18, a fertilization adjustment plate 19, a fertilization pipe 20, and a fertilization bend 21. The upper end of the fertilization fixing plate 16 is fixed to the longitudinal mounting beam 11. The lower end of the fertilization fixing plate 16 has a plurality of vertically distributed fertilization adjustment holes 17. The fertilization adjustment plate 19 is installed at the lower end of the fertilization fixing plate 16 through some of the fertilization adjustment holes 17. The fertilization disc 15 is inclined and rotatably connected to the side of the fertilization adjustment plate 19. The fertilizer protection plate 18 is also installed on the fertilization adjustment plate 19. One edge of the fertilizer protection plate 18 is set against the fertilization disc 15, and the other edge of the fertilizer protection plate 18 is set away from the fertilization disc 15, and the fertilization pipe 20 is installed at this edge. The upper end of the fertilization pipe 20 is connected to the fertilization bend 21.

[0039] Optionally, the fertilizer disc assembly also includes a fertilizer scraper 22; the upper end of the side surface of the fertilizer disc 15 opposite to the fertilizer pipe 20 is provided with a fertilizer scraper 22 that fits therewith.

[0040] The technical effects achieved by the above embodiments are as follows: by setting the fertilizer protection plate 18, the soil is prevented from blocking the fertilizer pipe 20 during the sowing process; by setting the fertilizer adjustment plate 19, the fertilizer depth is adjusted; and by setting the fertilizer scraper 22, the soil sticking on the fertilizer disc 15 during the fertilization process is avoided.

[0041] Example 5

[0042] like Figures 1 to 5 As shown, a precision-depth sowing and fertilization integrated unit includes all the contents of Example 4. In addition, the seed metering disc assembly includes a seed metering disc 23, a seed metering fixing plate 25, a seed metering adjusting plate 26, a seed protection plate 28, a seed metering pipe 29, and a seed metering bend 30. The upper end of the seed metering fixing plate 25 is fixed to the longitudinal mounting beam 11. The lower end of the seed metering fixing plate 25 has a plurality of vertically distributed seed metering adjusting holes 27. The seed metering adjusting plate 26 is installed at the lower end of the seed metering fixing plate 25 through some of the seed metering adjusting holes 27. The seed metering disc 23 is inclined and rotatably connected to the side of the seed metering adjusting plate 26. The seed protection plate 28 is installed on the seed metering adjusting plate 26. One edge of the seed protection plate 28 is set to fit against the seed metering disc 23, and the other edge of the seed protection plate 28 is set away from the seed metering disc 23, and the seed metering pipe 29 is installed at this edge. The upper end of the seed metering pipe 29 is connected to the seed metering bend 30.

[0043] Optionally, the seed metering disc assembly also includes a seed metering scraper 24; the upper end of the side surface of the seed metering disc 23 facing away from the seed metering tube 29 is provided with a seed metering scraper 24 that fits therewith.

[0044] The technical effects achieved by the above embodiments are as follows: by setting the seed protection plate 28, soil blockage of the seed metering pipe 29 is avoided during the sowing process; by setting the seed metering adjustment plate 26, the sowing depth can be adjusted; by setting the seed metering scraper 24, the phenomenon of soil sticking on the seed metering disc 23 during the sowing process is avoided.

[0045] Example 6

[0046] like Figures 1 to 5 As shown, a precision-depth sowing and fertilization integrated unit includes all the contents of Example 5. In addition, the seed pressing wheel assembly includes a seed pressing mounting plate 31, an angle adjustment plate 32, a seed pressing adjustment plate 34, and a seed pressing wheel body 35. The upper end of the seed pressing mounting plate 31 is fixed to the tail end of the longitudinal mounting beam 11. The lower end of the angle adjustment plate 32 is hinged to the lower end of the seed pressing mounting plate 31. The front end of the seed pressing adjustment plate 34 is hinged to the middle of the seed pressing mounting plate 31. The middle of the seed pressing adjustment plate 34 has multiple seed pressing adjustment holes. The upper end of the angle adjustment plate 32 has an elongated hole 33, which is connected to one of the seed pressing adjustment holes. The lower end of the seed pressing adjustment plate 34 is rotatably connected to the seed pressing wheel body 35.

[0047] The technical effect achieved by the above embodiment is that the setting of the angle adjustment plate 32 realizes the adjustment of the tilt angle and depth of the seed pressing wheel body 35.

[0048] Example 7

[0049] like Figures 1 to 5 As shown, a precision seeding and fertilization integrated unit includes all the contents of Example 6. In addition, it also includes a soil scraper, which is located above and behind the seed pressing wheel 35. A soil covering chain 36 is connected to the rear side of the soil scraper, and the soil covering chain 36 is a chain structure.

[0050] The technical effects achieved by the above embodiments are as follows: by setting up the soil scraper, the clay on the seed pressing wheel 35 is effectively removed; by setting up the soil covering chain 36, the land is leveled.

[0051] Example 8

[0052] like Figures 6 to 7 As shown, a precision seeding and fertilization integrated unit includes all the contents of Example 1, and also includes a parallel four-bar linkage 37 and a spring 38; the longitudinal mounting beam 11 is mounted on the front crossbeam 1 through the parallel four-bar linkage 37, the spring 38 is located between the upper and lower links of the parallel four-bar linkage 37, and a scale is also provided on the upper end of the spring 38.

[0053] In the description of the utility model, it is necessary to understand that the directions or position relations indicated by the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the utility model.

[0054] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0055] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0056] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0057] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

[0058] In the description of the present specification, the description referring to the terms "embodiment one", "embodiment two", "example", "specific example", or "some examples" and the like means that the specific method, device or feature described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, methods, devices or features can be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0059] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A precision depth seeding and fertilizing integrated unit, characterized in that, The utility model relates to a kind of agricultural machinery, including front crossbeam (1), longitudinal mounting beam (11), fertilization disc assembly, seed disc assembly, press wheel assembly and cover chain (36);Longitudinal mounting beam (11) upper end is installed on front crossbeam (1), longitudinal mounting beam (11) is sequentially provided with support wheel assembly, fertilization disc assembly, seed disc assembly and press wheel assembly from front to back, press wheel assembly rear side is provided with cover chain (36), and fertilization disc assembly, seed disc assembly are inclined to be set and the inclination direction of two is opposite;Rear crossbeam (2), front mounting assembly, rear adjusting assembly and support wheel assembly;Front crossbeam (1) is spaced in the front of rear crossbeam (2), and the upper end of front mounting assembly is detachably connected on front crossbeam (1), and the lower end of front mounting assembly is installed on longitudinal mounting beam (11) by hinge (5), and the upper end of rear adjusting assembly is adjustably installed on rear crossbeam (2), and the lower end of rear adjusting assembly is installed on longitudinal mounting beam (11) by hinge (5).

2. The precision seeding and fertilizing integrated unit according to claim 1, characterized in that, Front mounting assembly includes front fixed part (3) and front connecting rod (4), and the front end of front fixed part (3) is detachably installed on front crossbeam (1), and the upper end of front connecting rod (4) is hinged on front fixed part (3), and the lower end of front connecting rod (4) is connected with longitudinal mounting beam (11) by hinge (5).

3. The precision seeding and fertilizing integrated unit according to claim 1, wherein, Rear adjusting assembly includes elastic element (6), adjusting plate body (7), cam fixed part (9) and clamping protrusion (10), and the lower end of elastic element (6) is connected with longitudinal mounting beam (11) by hinge (5), and the upper end of elastic element (6) is hinged with the front end of adjusting plate body (7), and the upper edge of adjusting plate body (7) is provided with a plurality of adjusting notches (8), and clamping protrusion (10) is fixed on the lower surface of rear crossbeam (2), and clamping protrusion (10) is clamped with one of adjusting notches (8), and cam fixed part (9) is used to rotate to limit the cooperation of adjusting notches (8) of adjusting plate body (7) and clamping protrusion (10).

4. The precision seeding and fertilizing integrated unit of claim 1, wherein, Support wheel assembly includes support mounting plate (12) and support wheel body (13), and the upper end of support mounting plate (12) is fixed on the front end of longitudinal mounting beam (11), and the lower end of support mounting plate (12) is provided with a plurality of support adjusting holes (14), and support wheel body (13) is detachably installed in one of support adjusting holes (14), and a plurality of support adjusting holes (14) extend along vertical direction.

5. The precision seeding and fertilizing integrated unit of claim 1, wherein, The fertilizer disc assembly comprises a fertilizer disc (15), a fertilizer fixing plate (16), a fertilizer protection plate (18), a fertilizer adjusting plate (19), a fertilizer pipe (20) and a fertilizer elbow pipe (21); the upper end of the fertilizer fixing plate (16) is fixed on the longitudinal installation beam (11), the lower end of the fertilizer fixing plate (16) is provided with a plurality of fertilizer adjusting holes (17) vertically distributed, the fertilizer adjusting plate (19) is installed at the lower end of the fertilizer fixing plate (16) through part of the fertilizer adjusting holes (17), the fertilizer disc (15) is obliquely arranged and rotationally connected to the side of the fertilizer adjusting plate (19), the fertilizer protection plate (18) is further installed on the fertilizer adjusting plate (19), one edge of the fertilizer protection plate (18) is arranged in abutment with the fertilizer disc (15), the other edge of the fertilizer protection plate (18) is arranged away from the fertilizer disc (15) and the fertilizer pipe (20) is installed at the edge, and the upper end of the fertilizer pipe (20) is connected with the fertilizer elbow pipe (21).

6. The precision seeding and fertilizing integrated unit according to claim 5, wherein, The fertilizer disc assembly further comprises a fertilizer soil scraping plate (22); the upper end of the side surface of the fertilizer disc (15) away from the fertilizer pipe (20) is provided with the fertilizer soil scraping plate (22) in abutment therewith.

7. The precision seeding and fertilizing integrated unit of claim 1, wherein, The seed disc assembly comprises a seed disc (23), a seed fixing plate (25), a seed adjusting plate (26), a seed protection plate (28), a seed pipe (29) and a seed elbow pipe (30); the upper end of the seed fixing plate (25) is fixed on the longitudinal installation beam (11), the lower end of the seed fixing plate (25) is provided with a plurality of seed adjusting holes (27) vertically distributed, the seed adjusting plate (26) is installed at the lower end of the seed fixing plate (25) through part of the seed adjusting holes (27), the seed disc (23) is obliquely arranged and rotationally connected to the side of the seed adjusting plate (26), the seed protection plate (28) is installed on the seed adjusting plate (26), one edge of the seed protection plate (28) is arranged in abutment with the seed disc (23), the other edge of the seed protection plate (28) is arranged away from the seed disc (23) and the seed pipe (29) is installed at the edge, and the upper end of the seed pipe (29) is connected with the seed elbow pipe (30); The seed disc assembly further comprises a seed soil scraping plate (24); the upper end of the side surface of the seed disc (23) away from the seed pipe (29) is provided with the seed soil scraping plate (24) in abutment therewith.

8. The precision seeding and fertilizing integrated unit according to claim 7, characterized in that, The seed disc assembly comprises a seed disc (23), a seed fixing plate (25), a seed adjusting plate (26), a seed protection plate (28), a seed pipe (29) and a seed elbow pipe (30); the upper end of the seed fixing plate (25) is fixed on the longitudinal installation beam (11), the lower end of the seed fixing plate (25) is provided with a plurality of seed adjusting holes (27) vertically distributed, the seed adjusting plate (26) is installed at the lower end of the seed fixing plate (25) through part of the seed adjusting holes (27), the seed disc (23) is obliquely arranged and rotationally connected to the side of the seed adjusting plate (26), the seed protection plate (28) is installed on the seed adjusting plate (26), one edge of the seed protection plate (28) is arranged in abutment with the seed disc (23), the other edge of the seed protection plate (28) is arranged away from the seed disc (23) and the seed pipe (29) is installed at the edge, and the upper end of the seed pipe (29) is connected with the seed elbow pipe (30); The seed disc assembly further comprises a seed soil scraping plate (24); the upper end of the side surface of the seed disc (23) away from the seed pipe (29) is provided with the seed soil scraping plate (24) in abutment therewith. The seed disc assembly comprises a seed disc (23), a seed fixing plate (25), a seed adjusting plate (26), a seed protection plate (28), a seed pipe (29) and a seed elbow pipe (30); the upper end of the seed fixing plate (25) is fixed on the longitudinal installation beam (11), the lower end of the seed fixing plate (25) is provided with a plurality of seed adjusting holes (27) vertically distributed, the seed adjusting plate (26) is installed at the lower end of the seed fixing plate (25) through part of the seed adjusting holes (27), the seed disc (23) is obliquely arranged and rotationally connected to the side of the seed adjusting plate (26), the seed protection plate (28) is installed on the seed adjusting plate (26), one edge of the seed protection plate (28) is arranged in abutment with the seed disc (23), the other edge of the seed protection plate (28) is arranged away from the seed disc (23) and the seed pipe (29) is installed at the edge, and the upper end of the seed pipe (29) is connected with the seed elbow pipe (30); The seed disc assembly further comprises a seed soil scraping plate (24); the upper end of the side surface of the seed disc (23) away from the seed pipe (29) is provided with the seed soil scraping plate (24) in abutment therewith.

9. The precision seeding and fertilizing integrated unit of claim 1, wherein, It also comprises a parallel four-bar linkage (37) and a spring (38); the longitudinal mounting beam (11) is mounted on the front cross beam (1) through the parallel four-bar linkage (37), the spring (38) is arranged between the upper connecting rod and the lower connecting rod of the parallel four-bar linkage (37), and the upper end of the spring (38) is also provided with a scale.

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