Seeding and fertilizing integrated single body with precise seeding depth

Abstract

The invention 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 invention relates to the technical field of agricultural machinery, and in particular to a sowing and fertilizing integrated monomer with precise sowing depth. Background Art

[0002] As a kind of agricultural machinery for seeding operations, precision seeders are responsible for accurately delivering seeds into the soil. Most of the existing precision seeders have a parallel four-bar structure, but the weight of the contoured unit of this type of machine has a great influence on the precision of seeding during operation. Summary of the invention

[0003] To this end, the present invention provides an integrated sowing and fertilizing unit with precise sowing depth to solve the above-mentioned problems in the prior art.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] According to a first aspect of the present invention, a precision sowing and fertilizing integrated unit comprises a front cross beam, a longitudinal mounting beam, a fertilizing disc assembly, a seeding 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, and the longitudinal mounting beam is sequentially provided with a supporting wheel assembly, a fertilizing disc assembly, a seeding disc assembly and a seed pressing wheel assembly from front to back, a soil covering chain is provided on the rear side of the seed pressing wheel assembly, and the fertilizing disc assembly and the seeding disc assembly are both inclined and their inclination directions are opposite.

[0006] Furthermore, a rear cross beam, a front mounting assembly, a rear adjustment assembly and a support wheel assembly; the front cross beam is spaced in front of the rear cross beam, the upper end of the front mounting assembly is detachably connected to the front cross beam, the lower end of the front mounting assembly is mounted on the longitudinal mounting beam through a hinge, the upper end of the rear adjustment assembly is adjustably mounted on the rear cross beam, and the lower end of the rear adjustment assembly is mounted on the longitudinal mounting beam through a hinge.

[0007] Furthermore, the front mounting assembly includes a front fixing member and a front connecting rod, the front end of the front fixing member is detachably mounted on the front cross beam, the upper end of the front connecting rod is hinged to the front fixing member, and the lower end of the front connecting rod is connected to the longitudinal mounting beam via a hinge.

[0008] Furthermore, the rear adjustment component includes an elastic element, an adjustment plate body, a cam fixing and a snap-in protrusion. The lower end of the elastic element is connected to the longitudinal mounting beam by a hinge, the upper end of the elastic element is hinged to the front end of the adjustment plate body, a plurality of adjustment notches are provided on the upper edge of the adjustment plate body, the snap-in protrusion is fixed to the lower surface of the rear cross beam, the snap-in protrusion is snap-fitted with one of the adjustment notches, and the cam fixing is used to limit the fitting relationship between the adjustment notch and the snap-in protrusion of the adjustment plate body after rotation.

[0009] Furthermore, the support wheel assembly includes a support mounting plate and a support wheel body. The upper end of the support mounting plate is fixed to the front end of the longitudinal mounting beam. The lower end of the support mounting plate is provided with a plurality of support adjustment holes. The support wheel body can be removably installed in one of the support adjustment holes. The plurality of support adjustment holes extend in the vertical direction.

[0010] Furthermore, the fertilization disc assembly includes a fertilization disc, a fertilization fixing plate, a fertilizer protection plate, a fertilization adjustment plate, a fertilization pipe and a fertilization bent pipe; the upper end of the fertilization fixing plate is fixed on the longitudinal mounting beam, and a plurality of vertically distributed fertilization adjustment holes are provided at the lower end of the fertilization fixing plate, and the fertilization adjustment plate is installed on the lower end of the fertilization fixing plate through some of the fertilization adjustment holes, the fertilization disc is tilted and rotatably connected to the side of the fertilization adjustment plate, and a fertilizer protection plate is also installed on the fertilization adjustment plate, one edge of the fertilizer protection plate is arranged to fit the fertilization disc, and the other edge of the fertilizer protection plate is arranged away from the fertilization disc and a fertilization pipe is installed at the edge, and the upper end of the fertilization pipe is connected to the fertilization bent pipe.

[0011] Furthermore, the fertilization disc assembly also includes a fertilization scraper plate; a fertilization scraper plate fitted therewith is arranged on the upper end of the side surface of the fertilization disc away from the fertilization pipe.

[0012] Furthermore, the seeding disc assembly includes a seeding disc, a seeding fixing plate, a seeding adjustment plate, a seeding protection plate, a seeding tube and a seeding bent pipe; the upper end of the seeding fixing plate is fixed on the longitudinal mounting beam, and a plurality of vertically distributed seeding adjustment holes are provided at the lower end of the seeding fixing plate, and the seeding adjustment plate is installed on the lower end of the seeding fixing plate through some of the seeding adjustment holes, the seeding disc is tilted and rotatably connected to the side of the seeding adjustment plate, and a seeding protection plate is installed on the seeding adjustment plate, one edge of the seeding protection plate is arranged in contact with the seeding disc, and the other edge of the seeding protection plate is arranged away from the seeding disc and a seeding tube is installed at the edge, and the upper end of the seeding tube is connected to the seeding bent pipe.

[0013] Furthermore, the seeding disc assembly also includes a seeding scraper plate; a seeding scraper plate fitted therewith is arranged on the upper end of the side surface of the seeding disc away from the seeding tube.

[0014] Furthermore, the seed pressing wheel assembly includes a seed pressing mounting plate, an angle adjustment plate, a seed pressing adjustment plate and a seed pressing wheel body. The upper end of the seed pressing mounting plate is fixed to the tail end of the longitudinal mounting beam, the lower end of the angle adjustment plate is hinged to the lower end of the seed pressing mounting plate, the front end of the seed pressing adjustment plate is hinged to the middle part of the seed pressing mounting plate, a plurality of seed pressing adjustment holes are opened in the middle part of the seed pressing adjustment plate, a long hole is opened at the upper end of the angle adjustment plate, the long hole is connected to one of the seed pressing adjustment holes, and the lower end of the seed pressing adjustment plate is rotatably connected to the seed pressing wheel body.

[0015] Furthermore, it also includes a scraper, which is arranged on the upper rear of the seed pressing wheel body, and the rear side of the scraper is connected with a soil covering chain, which is a chain structure.

[0016] Furthermore, it also includes a parallelogram linkage and a spring; the longitudinal mounting beam is installed on the front crossbeam through the parallelogram linkage, the spring is arranged between the upper link and the lower link of the parallelogram linkage, and a scale is also arranged on the upper end of the spring.

[0017] The present invention has the following advantages: the device is an integrated unit for sowing and fertilizing with precise sowing depth, which realizes the precision of sowing and fertilizing, improves the growth uniformity of crops, improves the operation efficiency of sowing and fertilizing, has little soil disturbance and high mechanization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of an integrated unit for sowing and fertilizing with precise sowing depth provided in some embodiments of the present invention.

[0019] Figure 2 A rear view of an integrated unit for sowing and fertilizing with precise sowing depth provided in some embodiments of the present invention.

[0020] Figure 3 A first-perspective stereoscopic image of an integrated sowing and fertilizing unit with precise sowing depth provided in some embodiments of the present invention.

[0021] Figure 4 A second perspective stereoscopic image of an integrated sowing and fertilizing unit with precise sowing depth provided in some embodiments of the present invention.

[0022] Figure 5 A top view of an integrated unit for sowing and fertilizing with precise sowing depth provided in some embodiments of the present invention.

[0023] Figure 6 A front view of an integrated unit for sowing and fertilizing with precise sowing depth provided in other embodiments of the present invention.

[0024] Figure 7 A three-dimensional diagram of an integrated unit for sowing and fertilizing with precise sowing depth provided in other embodiments of the present invention.

[0025] In the figure: 1, front cross beam, 2, rear cross beam, 3, front fixing part, 4, front connecting rod, 5, hinge, 6, elastic element, 7, adjustment plate, 8, adjustment notch, 9, cam fixing part, 10, clamping protrusion, 11, longitudinal mounting beam, 12, support mounting plate, 13, support wheel body, 14, support adjustment hole, 15, fertilizer disc, 16, fertilizer fixing plate, 17, fertilizer adjustment hole, 18, fertilizer protection plate, 19, fertilizer adjustment plate, 20, Fertilizer pipe, 21. Fertilizer bend pipe, 22. Fertilizer scraper plate, 23. Seed disc, 24. Seed scraper plate, 25. Seed fixing plate, 26. Seed adjustment plate, 27. Seed adjustment hole, 28. Seed protection plate, 29. Seed pipe, 30. Seed bend pipe, 31. Seed pressing mounting plate, 32. Angle adjustment plate, 33. Long hole, 34. Seed pressing adjustment plate, 35. Seed pressing wheel body, 36. Soil covering chain, 37. Parallel four-link, 38. Spring. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figures 1 to 5 As shown, an integrated unit for sowing and fertilizing with precise sowing depth in the embodiment of the first aspect of the present invention comprises a front cross beam 1, a longitudinal mounting beam 11, a fertilizing disc assembly, a seeding 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 cross beam 1, and the longitudinal mounting beam 11 is provided with a supporting wheel assembly, a fertilizing disc assembly, a seeding disc assembly and a seed pressing wheel assembly in sequence from front to back, and a soil covering chain 36 is provided on the rear side of the seed pressing wheel assembly, and the fertilizing disc assembly and the seeding disc assembly are both inclined and their inclination directions are opposite.

[0029] The technical effect achieved by the above embodiments is as follows: the device is an integrated unit for sowing and fertilizing with precise sowing depth, which realizes the precision of sowing and fertilizing, improves the growth uniformity of crops, improves the operation efficiency of sowing and fertilization, has little soil disturbance and high mechanization efficiency.

[0030] Example 2

[0031] like Figures 1 to 5As shown, a precise sowing depth and fertilization integrated unit includes all the contents of Example 1, in addition, a rear crossbeam 2, a front mounting assembly, a rear adjustment assembly and a support wheel assembly; the front crossbeam 1 is spaced in front of the rear crossbeam 2, the upper end of the front mounting assembly is detachably connected to the front crossbeam 1, the lower end of the front mounting assembly is mounted on the longitudinal mounting beam 11 through a hinge 5, the upper end of the rear adjustment assembly is adjustably mounted on the rear crossbeam 2, and the lower end of the rear adjustment assembly is mounted on the longitudinal mounting beam 11 through a hinge 5.

[0032] Example 3

[0033] like Figures 1 to 5 As shown, a precise sowing depth integrated fertilization unit includes all the contents of Example 2. In addition, the front mounting assembly 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 cross beam 1. The upper end of the front connecting rod 4 is hinged to the front fixing member 3, and the lower end of the front connecting rod 4 is connected to the longitudinal mounting beam 11 via a hinge 5.

[0034] Optionally, the rear adjustment assembly includes an elastic element 6, an adjustment plate body 7, a cam fixing member 9 and a clamping protrusion 10, the lower end of the elastic element 6 is connected to the longitudinal mounting beam 11 through a hinge 5, the upper end of the elastic element 6 is hinged to the front end of the adjustment plate body 7, a plurality of adjustment notches 8 are provided on the upper edge of the adjustment plate body 7, the clamping protrusion 10 is fixed to the lower surface of the rear cross beam 2, the clamping protrusion 10 is clamped and matched with one of the adjustment notches 8, and the cam fixing member 9 is used to rotate and limit the matching relationship between the adjustment notch 8 of the adjustment plate body 7 and the clamping protrusion 10. Among them, the elastic element 6 is a structure such as a spring, a gas spring, an electric push rod or a hydraulic cylinder.

[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, and the support wheel body 13 can be removably 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 member 3 and the front connecting rod 4, the swing of the monomer is realized; by setting the elastic element 6, the adjustment plate body 7, the cam fixing member 9 and the clamping protrusion 10, the adjustment of the monomer sowing height is realized; by setting the support mounting plate 12 and the support wheel body 13, a good monomer supporting effect is played.

[0037] Example 4

[0038] like Figures 1 to 5As shown, a precise sowing depth integrated fertilization monomer includes all the contents of Example 3. In addition, the fertilizer disc assembly includes a fertilizer disc 15, a fertilizer fixing plate 16, a fertilizer protection plate 18, a fertilizer adjustment plate 19, a fertilizer pipe 20 and a fertilizer elbow 21; the upper end of the fertilizer fixing plate 16 is fixed on the longitudinal mounting beam 11, and a plurality of vertically distributed fertilizer adjustment holes 17 are opened at the lower end of the fertilizer fixing plate 16. The fertilizer adjustment plate 19 is installed on the lower end of the fertilizer fixing plate 16 through some of the fertilizer adjustment holes 17. The fertilizer disc 15 is tilted and rotatably connected to the side of the fertilizer adjustment plate 19. A fertilizer protection plate 18 is also installed on the fertilizer adjustment plate 19. One edge of the fertilizer protection plate 18 is arranged to fit the fertilizer disc 15, and the other edge of the fertilizer protection plate 18 is arranged away from the fertilizer disc 15 and a fertilizer pipe 20 is installed at the edge, and the upper end of the fertilizer pipe 20 is connected to the fertilizer elbow 21.

[0039] Optionally, the fertilization disc assembly further includes a fertilization scraper plate 22; the upper end of the side surface of the fertilization disc 15 away from the fertilization pipe 20 is provided with a fertilization scraper plate 22 fitted therewith.

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

[0041] Example 5

[0042] like Figures 1 to 5 As shown, a precise sowing and fertilization integrated monomer includes all the contents of Example 4. In addition, the seeding disc assembly includes a seeding disc 23, a seeding fixing plate 25, a seeding adjustment plate 26, a seed protecting plate 28, a seeding tube 29 and a seeding bent pipe 30; the upper end of the seeding fixing plate 25 is fixed on the longitudinal mounting beam 11, and a plurality of vertically distributed seeding adjustment holes 27 are opened at the lower end of the seeding fixing plate 25, and the seeding adjustment plate 26 is installed on the lower end of the seeding fixing plate 25 through some of the seeding adjustment holes 27, the seeding disc 23 is tilted and rotatably connected to the side of the seeding adjustment plate 26, and a seed protecting plate 28 is installed on the seeding adjustment plate 26, one edge of the seed protecting plate 28 is arranged in contact with the seeding disc 23, and the other edge of the seed protecting plate 28 is arranged away from the seeding disc 23 and a seeding tube 29 is installed at the edge, and the upper end of the seeding tube 29 is connected to the seeding bent pipe 30.

[0043] Optionally, the seeding disc assembly further includes a seeding scraper plate 24; the upper end of the side surface of the seeding disc 23 facing away from the seeding tube 29 is provided with a seeding scraper plate 24 fitted therewith.

[0044] The technical effects achieved by the above embodiments are as follows: by setting the seed protection plate 28, the soil is prevented from blocking the seed tube 29 during sowing; by setting the seed adjustment plate 26, the sowing depth can be adjusted; by setting the seed scraper plate 24, the clay phenomenon on the seed disc 23 during sowing is avoided.

[0045] Example 6

[0046] like Figures 1 to 5 As shown, a precise sowing depth integrated unit for sowing and fertilization includes all the contents of Example 5. In addition, a 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 part of the seed pressing mounting plate 31, a plurality of seed pressing adjustment holes are opened in the middle part of the seed pressing adjustment plate 34, a long hole 33 is opened at the upper end of the angle adjustment plate 32, the long hole 33 is connected to one of the seed pressing adjustment holes, and 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 inclination angle and depth of the seed pressing wheel body 35.

[0048] Example 7

[0049] like Figures 1 to 5 As shown, a sowing and fertilizing integrated unit with precise sowing depth includes all the contents of Example 6, and in addition, also includes a scraper, which is arranged at the upper rear of the seed pressing wheel body 35, and the rear side of the scraper is connected to a covering chain 36, which is a chain structure.

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

[0051] Example 8

[0052] like Figure 6 to Figure 7 As shown, a precise sowing depth integrated fertilization unit includes all the contents of Example 1, and in addition, also includes a parallelogram 37 and a spring 38; the longitudinal mounting beam 11 is installed on the front cross beam 1 through the parallelogram 37, the spring 38 is arranged between the upper link and the lower link of the parallelogram 37, and a scale is also arranged on the upper end of the spring 38.

[0053] In the description of the present invention, it is to be understood that the terms “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0058] In the description of this specification, the description with reference to the terms "embodiment one", "embodiment two", "example", "specific example", or "some examples" means that the specific method, device or feature described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, methods, devices or features described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sowing and fertilization integrated monomer with precise sowing depth, characterized in that: The invention comprises a front cross beam (1), a longitudinal mounting beam (11), a fertilizing disc assembly, a seeding 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 cross beam (1); the longitudinal mounting beam (11) is provided with a supporting wheel assembly, a fertilizing disc assembly, a seeding 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 fertilizing disc assembly and the seeding disc assembly are both arranged obliquely and their inclination directions are opposite.

2. The integrated sowing and fertilization unit with precise sowing depth according to claim 1, characterized in that: A rear crossbeam (2), a front mounting assembly, a rear adjustment assembly and a support wheel assembly; the front crossbeam (1) is spaced in front of the rear crossbeam (2); the upper end of the front mounting assembly is detachably connected to the front crossbeam (1); the lower end of the front mounting assembly is mounted on the longitudinal mounting beam (11) via a hinge (5); the upper end of the rear adjustment assembly is adjustably mounted on the rear crossbeam (2); and the lower end of the rear adjustment assembly is mounted on the longitudinal mounting beam (11) via a hinge (5).

3. The integrated sowing and fertilization unit with precise sowing depth according to claim 2, characterized in that: The front mounting assembly comprises 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 cross beam (1); the upper end of the front connecting rod (4) is hinged on the front fixing member (3); and the lower end of the front connecting rod (4) is connected to the longitudinal mounting beam (11) via a hinge (5).

4. The integrated sowing and fertilization unit with precise sowing depth according to claim 2, characterized in that: The rear adjustment component comprises an elastic element (6), an adjustment plate body (7), a cam fixing member (9) and a clamping protrusion (10); the lower end of the elastic element (6) is connected to a longitudinal mounting beam (11) through a hinge (5); the upper end of the elastic element (6) is hinged to the front end of the adjustment plate body (7); a plurality of adjustment notches (8) are provided on the upper edge of the adjustment plate body (7); the clamping protrusion (10) is fixed to the lower surface of the rear cross beam (2); the clamping protrusion (10) is clamped and matched with one of the adjustment notches (8); and the cam fixing member (9) is used to limit the matching relationship between the adjustment notch (8) of the adjustment plate body (7) and the clamping protrusion (10) after rotation.

5. The integrated sowing and fertilization unit with precise sowing depth according to claim 2, characterized in that: The support wheel assembly comprises 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); 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 mounted in one of the support adjustment holes (14); and the plurality of support adjustment holes (14) extend in the vertical direction.

6. The integrated sowing and fertilization unit with precise sowing depth according to claim 1, characterized in that: The fertilization disc assembly comprises 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 bent pipe (21); the upper end of the fertilization fixing plate (16) is fixed on the longitudinal mounting beam (11), the lower end of the fertilization fixing plate (16) is provided with a plurality of vertically distributed fertilization adjustment holes (17), and the fertilization adjustment plate (19) is installed on the fertilization fixing plate through some of the fertilization adjustment holes (17). At the lower end of the fixed plate (16), a fertilizer disc (15) is tilted and rotatably connected to the side of a fertilizer adjustment plate (19), and a fertilizer protection plate (18) is also installed on the fertilizer adjustment plate (19). One edge of the fertilizer protection plate (18) is arranged to fit the fertilizer disc (15), and the other edge of the fertilizer protection plate (18) is arranged away from the fertilizer disc (15) and a fertilizer pipe (20) is installed at the edge. The upper end of the fertilizer pipe (20) is connected to a fertilizer elbow (21).

7. The integrated sowing and fertilization unit with precise sowing depth according to claim 6, characterized in that: The fertilizing disc assembly also includes a fertilizing scraper plate (22); the upper end of the side surface of the fertilizing disc (15) away from the fertilizing pipe (20) is provided with a fertilizing scraper plate (22) fitted therewith.

8. The integrated sowing and fertilization unit with precise sowing depth according to claim 1, characterized in that: The seeding disc assembly comprises a seeding disc (23), a seeding fixing plate (25), a seeding adjustment plate (26), a seed protection plate (28), a seeding tube (29) and a seeding bent tube (30); the upper end of the seeding fixing plate (25) is fixed on the longitudinal mounting beam (11), the lower end of the seeding fixing plate (25) is provided with a plurality of vertically distributed seeding adjustment holes (27), and the seeding adjustment plate (26) is installed on the seeding fixing plate through some of the seeding adjustment holes (27). At the lower end of the fixed plate (25), a seeding disc (23) is tilted and rotatably connected to the side of a seeding adjustment plate (26), a seeding protection plate (28) is installed on the seeding adjustment plate (26), one edge of the seeding protection plate (28) is arranged in close contact with the seeding disc (23), the other edge of the seeding protection plate (28) is arranged away from the seeding disc (23) and a seeding tube (29) is installed at the edge, and the upper end of the seeding tube (29) is connected to a seeding bent tube (30); The seeding disc assembly also includes a seeding scraper plate (24); the upper end of the side surface of the seeding disc (23) away from the seeding tube (29) is provided with a seeding scraper plate (24) in contact with the seeding tube (29).

9. The integrated sowing and fertilization unit with precise sowing depth according to claim 8, characterized in that: The seed pressing wheel assembly comprises 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 rear 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); a plurality of seed pressing adjustment holes are provided in the middle of the seed pressing adjustment plate (34); a long hole (33) is provided at the upper end of the angle adjustment plate (32); the long hole (33) is connected to one of the seed pressing adjustment holes; and the lower end of the seed pressing adjustment plate (34) is rotatably connected to the seed pressing wheel body (35); The invention also comprises a soil scraper, which is arranged at the upper rear part of the seed pressing wheel body (35), and the rear side of the soil scraper is connected with a soil covering chain (36), which is a chain structure.

10. The integrated sowing and fertilization unit with precise sowing depth according to claim 1, characterized in that: It also includes a parallelogram link (37) and a spring (38); the longitudinal mounting beam (11) is mounted on the front cross beam (1) through the parallelogram link (37); the spring (38) is arranged between the upper link and the lower link of the parallelogram link (37); and a scale is also arranged on the upper end of the spring (38).

Images