Sliding knife type inverted T-shaped furrow opener of no-tillage planter
By designing a sliding blade inverted T-shaped furrow opener, the problems of large soil disturbance and high furrowing resistance in dry and compacted soils by no-till seeders were solved, achieving low-resistance, high-efficiency sowing and good water retention.
Patent Information
- Application Number
- CN202520458305.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing no-till planter furrow openers suffer from problems such as significant soil disturbance, stem entanglement, high furrowing resistance, and poor water retention during operation, especially in dry and compacted soils.
The sliding blade inverted T-shaped furrow opener includes a connecting column, a seed and fertilizer tube, a furrowing blade, and an inverted T-shaped furrowing component. It is designed in the shape of a crucian carp, combining an arc-shaped sliding cutting blade and an inverted T-shaped structure to cut stems and stubble, reduce soil disturbance, and guide seeds and fertilizer into the soil through the seed and fertilizer tube.
It effectively reduces soil disturbance, improves ditching efficiency, reduces machine resistance, and enhances sowing results, especially showing good water retention and moisture conservation performance in dry and compacted soils.
Smart Images

Figure CN223829888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural equipment, and in particular to a sliding blade type inverted T-shaped furrow opener for a no-till seeder. Background Technology
[0002] According to the technical requirements of agricultural equipment for conservation tillage, when carrying out no-till seeding operations, the furrow opener not only needs to have good furrowing performance, but also needs to have functions such as stubble breaking, moisture retention and water retention, which helps to increase the porosity of the soil and reduce the resistance of the machine operation.
[0003] Currently, the common problems with existing no-till planter furrow openers in the domestic market include: large soil disturbance and stem entanglement, which are difficult to solve. Especially when the soil is dry and compacted, dry soil, straw and stubble are easily squeezed into the furrow, resulting in large soil disturbance, high furrowing resistance, poor water retention and moisture retention, and inability to effectively guarantee the emergence rate. Utility Model Content
[0004] To address the aforementioned problems of significant soil disturbance and stem entanglement, the purpose of this invention is to provide a sliding blade type inverted T-shaped furrow opener for no-till seeders. This effectively solves the technical problems of high disturbance rate, high furrowing resistance, and poor water retention in no-till seeders. It can break up compacted soil structure, create good planting furrows, reduce forward resistance, and improve the seeding effect of no-till seeders.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A no-till planter with a sliding blade inverted T-shaped furrow opener includes: a connecting column 1, a seed-fertilizer tube 9, a furrowing sliding blade 4, an inverted T-shaped furrowing assembly 10, and a disassembly and assembly connection assembly. The seed-fertilizer tube 9 is located on the rear side of the connecting column 1. The upper part of the connecting column 1 and the seed-fertilizer tube 9 are detachably connected via the disassembly and assembly connection assembly. The lower front part of the connecting column 1 is connected to the furrowing sliding blade 4. The lower end of the connecting column 1 is connected to the inverted T-shaped furrowing assembly 10. The inverted T-shaped furrowing assembly 10 is located at the bottom end of the furrowing sliding blade 4. The front side of the furrowing sliding blade 4 has a cutting edge. The bottom end of the seed-fertilizer tube 9 is inclined.
[0007] The aforementioned no-till seeder with sliding blade inverted T-shaped furrow opener includes a detachable and connectable assembly comprising a left wing plate 2 and a right wing plate 6, which are symmetrically arranged on both sides of the connecting column 1.
[0008] The aforementioned no-till seeder with a sliding blade inverted T-shaped furrow opener has a rectangular plate on the left side wing 2 and the right side wing 6, and each corner of the left side wing 2 and the right side wing 6 has a mounting hole.
[0009] The aforementioned no-till seeder with a sliding blade inverted T-shaped furrow opener has multiple assembly through holes on the connecting column 1.
[0010] The aforementioned no-till seeder with sliding blade inverted T-shaped furrow opener includes a disassembly and assembly connection assembly that also includes bolts 3 and nuts 8. Two bolts 3 are provided on the front side of the seed-fertilizer tube 9. Any bolt located on the front side of the seed-fertilizer tube 9 passes through a mounting hole on the left wing plate 2, an assembly through hole on the connecting column 1, and a mounting hole on the right wing plate 6 in sequence, and is then tightened onto a nut 8.
[0011] The aforementioned no-till seeder with sliding blade inverted T-shaped furrow opener includes a disassembly and assembly connection assembly comprising an upper fastening ring 5 and a lower fastening ring 7, both of which are located between the left wing plate 2 and the right wing plate 6.
[0012] In the aforementioned no-till seeder with a sliding blade inverted T-shaped furrow opener, two bolts 3 are provided on the rear side of the seed-fertilizer tube 9. The upper bolt on the rear side of the seed-fertilizer tube 9 passes through a mounting hole in the left wing plate 2, the upper fastening ring 5, and a mounting hole in the right wing plate 6 in sequence, and is then tightened onto a nut 8. The lower bolt on the rear side of the seed-fertilizer tube 9 passes through a mounting hole in the left wing plate 2, the lower fastening ring 7, and a mounting hole in the right wing plate 6 in sequence, and is then tightened onto a nut 8.
[0013] In the aforementioned no-till seeder with a sliding blade inverted T-shaped furrow opener, both ends of the upper fastening ring 5 and the lower fastening ring 7 are equipped with limiting plates, and the front end of each limiting plate abuts against the seed-fertilizer tube 9.
[0014] The aforementioned no-till seeder with sliding blade inverted T-shaped furrow opener has a furrow opener 4 with a quarter-circle structure. Its top side is perpendicular to the connecting column 1. The cutting edge of the furrow opener 4 is arc-shaped, and the front side of the connecting column 1 that connects to the furrow opener 4 adopts a rounded corner transition.
[0015] In the aforementioned no-till seeder sliding blade inverted T-shaped furrow opener, the lower side of the inverted T-shaped furrow opener component 10 and the bottom end of the furrow opener sliding blade 4 are located on the same arc surface, and the upper side of the inverted T-shaped furrow opener component 10 is an upwardly convex arc surface.
[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:
[0017] (1) In this utility model, an arc-shaped sliding cutting blade is provided in front of the ditching blade to cut the stems and stubble in the soil. The inverted T-shaped ditching component is installed at the bottom of the ditching blade. During the sowing operation, as the ditching blade cuts the stems and stubble, the inverted T-shaped ditching component moves up or down below the ground, causing secondary disturbance and loosening of the soil.
[0018] (2) In this utility model, the middle of the seed-fertilizer tube has a rectangular hole to form a certain space for seed and fertilizer discharge, and its bottom is at a certain angle to the ground to guide the seeds and fertilizer into the soil. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a sliding blade inverted T-shaped furrow opener for a no-till seeder according to this utility model.
[0020] Figure 2 This is a front view of a sliding blade inverted T-shaped furrow opener for a no-till seeder according to this utility model.
[0021] Figure 3 This is a left view of a sliding blade inverted T-shaped furrow opener for a no-till seeder according to this utility model.
[0022] Figure 4 This is a right view of a sliding blade inverted T-shaped furrow opener for a no-till seeder according to this utility model.
[0023] Figure 5 This is a top view of a sliding blade inverted T-shaped furrow opener for a no-till seeder according to this utility model.
[0024] In the attached diagram: 1. Connecting column; 2. Left wing plate; 3. Bolt; 4. Trenching cutter; 5. Upper fastening ring; 6. Right wing plate; 7. Lower fastening ring; 8. Nut; 9. Seed and fertilizer tube; 10. Inverted T-shaped trenching assembly. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.
[0026] Please refer to Figure 1 The diagram shows a sliding blade type inverted T-shaped furrow opener for a no-till planter. It mainly consists of a connecting column 1, a left wing plate 2, bolts 3, a furrowing blade 4, an upper fastening ring 5, a right wing plate 6, a lower fastening ring 7, a nut 8, a seed / fertilizer tube 9, and an inverted T-shaped furrowing assembly 10. The furrowing blade 4 has an arc-shaped cutting edge, creating a sliding cutting effect with the soil during operation. The left wing plate 2 and the right wing plate 6 fix the connecting column 1 and the seed / fertilizer tube 9 together. The upper fastening ring 5 and the lower fastening ring 7 are installed in the gap between the left wing plate 2 and the right wing plate 6 for fastening. The seed / fertilizer tube 9 has a rectangular hole in the middle, forming a space for seed and fertilizer discharge. Bolts 3 and nuts 8 are located on both sides of the left wing plate 2 and the right wing plate 6, respectively, for limiting and fastening. The inverted T-shaped furrowing assembly 10 is fixed at the bottom of the furrowing blade 4. The side of the inverted T-shaped furrowing assembly 10 mimics the streamlined shape of a crucian carp to reduce operating resistance.
[0027] Furthermore, in a preferred embodiment, the inverted T-shaped trenching component 10 has a side profile that mimics the streamlined shape of a crucian carp, with a height of 9 mm and a width of 35 mm. The bottom edge of the seed-fertilizer tube 9 forms an angle of 24° with the ground, has a height of 159 mm and a width of 19 mm, and the seed discharge port inside the seed-fertilizer tube 9 has a width of 8 mm and a length of 17 mm.
[0028] Furthermore, in a preferred embodiment, the front end of the grooving cutter 4 is provided with a cutting edge, the cutting edge radius is 85mm, the cutting edge angle is 36°, and the cutting edge thickness is 4mm.
[0029] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.
[0030] Based on the above, this utility model also has the following embodiments:
[0031] In a further embodiment of this utility model, an arc-shaped cutting blade is provided in front of the ditching blade 4 to cut up the stems and stubble in the soil. The left wing plate 9 and the right wing plate 7 fix the connecting column 1 and the seed and fertilizer pipe 9 together. The inverted T-shaped ditching component 10 is installed at the bottom of the ditching blade 4. During the sowing operation, as the ditching blade cuts the stems and stubble, the inverted T-shaped ditching component 10 moves upward or downward below the ground, causing secondary disturbance and loosening of the soil.
[0032] In a further embodiment of this utility model, the seed-fertilizer tube 9 has a rectangular hole in the middle to form a certain space for discharging seeds and fertilizer, and its bottom is at a certain angle to the ground to guide the seeds and fertilizer into the soil.
[0033] In a further embodiment of this utility model, the bolt 3 and the nut 8 are located on both sides of the left wing plate 2 and the right wing plate 6, respectively, to limit and fasten the bolt.
[0034] In a further embodiment of this utility model, the inverted T-shaped trenching component 10 has a side profile that mimics the streamlined shape of a crucian carp, with a height of 9mm and a width of 35mm. The bottom edge of the seed-fertilizer tube 9 forms an angle of 24° with the ground, has a height of 159mm and a width of 19mm, and the seed discharge port inside the seed-fertilizer tube 9 has a width of 8mm and a length of 17mm.
[0035] In a further embodiment of this utility model, the front end of the grooving cutter 4 is provided with a cutting edge, the cutting edge radius is 85mm, the cutting edge angle is 36°, and the cutting edge thickness is 4mm.
[0036] In a further embodiment of this utility model, the following is adopted: Figure 2The ditching cutter 4 with a quarter-circle structure shown has an inverted T-shaped ditching component 10 installed at the bottom of the ditching cutter 4 and located below the ground. During the forward movement of the ditching cutter 4, the ditching cutter 4 can push the stems and stubble down along the blade until they are cut off, effectively reducing the resistance of the ditching cutter 4 during the forward movement.
[0037] In a further embodiment of this utility model, the side of the inverted T-shaped grooved component 10 imitates the streamlined shape of a crucian carp, such as... Figure 2 As shown, its front end is also a curved surface, such as Figure 5 As shown, this greatly reduces its resistance to breaking through the ground below the surface.
[0038] In a further embodiment of this utility model, the front side of the connecting column 1 that connects to the grooving cutter 4 adopts a rounded corner transition, such as... Figure 1 and Figure 3 As shown, this reduces the soil breaking resistance at its lower end below the ground. At the same time, after the trenching cutter 4 cuts the stems and stubble, it reduces the resistance between the connecting column 1 and the stems and stubble during the collision process, thus avoiding stress concentration.
[0039] In a further embodiment of this utility model, the connecting column 1 and the seed-fertilizer tube 9 are arranged in parallel, and the seed-fertilizer tube 9 is limited by the left wing plate 2 and the right wing plate 6 to ensure that the seeds and fertilizer discharged from the bottom of the seed-fertilizer tube 9 can accurately fall into the groove opened by the ditching slide 4 and the inverted T-shaped ditching component 10.
[0040] In a further embodiment of this utility model, the left wing plate 2 and the right wing plate 6 are both installed on the connecting column 1 by bolts 3 and nuts 8, which facilitates the assembly of the left wing plate 2 and the right wing plate 6, and also facilitates the adjustment and disassembly of the seed and fertilizer pipe 9. The distance between the lower end of the seed and fertilizer pipe 9 and the ground can be adjusted after loosening the bolts 3. When the trench opened by the trenching cutter 4 and the inverted T-shaped trenching component 10 is deep or shallow, the seeds and fertilizer discharged from the bottom of the seed and fertilizer pipe 9 can still fall accurately into the trench.
[0041] In a further embodiment of this utility model, the bottom end of the seed-fertilizer pipe 9 is inclined; preferably, the angle between the bottom edge of the seed-fertilizer pipe 9 and the ground is 24°. Figure 2 As shown, the inclined bottom end facilitates the accurate falling of seeds and fertilizer into the trench, avoiding collision with the inner wall of the seed-fertilizer tube 9 at the outlet of the seed-fertilizer tube 9 and falling to the outside of the trench, especially the seeds falling to the outside of the trench.
[0042] In a further embodiment of this utility model, two bolts 3 and nuts 8 are provided on the rear side of the seed-fertilizer pipe 9 to limit its position, ensuring that the seed-fertilizer pipe 9 is tightly fitted with the connecting column 1, and ensuring that the fertilization and seeding work can be carried out stably.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sliding blade type inverted T-shaped furrow opener for a no-till seeder, characterized in that, include: The connection includes a column (1), a seed and fertilizer tube (9), a ditching cutter (4), an inverted T-shaped ditching assembly (10), and a disassembly and assembly connection assembly. The seed and fertilizer tube (9) is located on the rear side of the column (1). The upper part of the column (1) and the seed and fertilizer tube (9) are detachably connected by the disassembly and assembly connection assembly. The lower front part of the column (1) is connected to the ditching cutter (4). The lower end of the column (1) is connected to the inverted T-shaped ditching assembly (10). The inverted T-shaped ditching assembly (10) is located at the bottom end of the ditching cutter (4). The front side of the ditching cutter (4) has a cutting edge. The bottom end of the seed and fertilizer tube (9) is inclined.
2. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 1, characterized in that, The disassembly and assembly connection components include: a left wing plate (2) and a right wing plate (6), which are symmetrically arranged on both sides of the connecting column (1).
3. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 2, characterized in that, Both the left wing plate (2) and the right wing plate (6) are rectangular plates, and each corner of the left wing plate (2) and the right wing plate (6) is provided with a mounting hole.
4. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 3, characterized in that, Multiple assembly through holes are provided on the connecting column (1).
5. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 4, characterized in that, The disassembly and assembly connection assembly also includes bolts (3) and nuts (8). Two bolts (3) are provided on the front side of the seed and fertilizer pipe (9). Any bolt located on the front side of the seed and fertilizer pipe (9) passes through a mounting hole of the left wing plate (2), an assembly through hole of the connecting column (1) and a mounting hole of the right wing plate (6) in sequence and is then tightened onto a nut (8).
6. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 5, characterized in that, The disassembly and assembly connection assembly also includes an upper fastening ring (5) and a lower fastening ring (7), both of which are located between the left wing plate (2) and the right wing plate (6).
7. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 6, characterized in that, Two bolts (3) are provided on the rear side of the seed and fertilizer tube (9). The upper bolt on the rear side of the seed and fertilizer tube (9) passes through a mounting hole in the left wing plate (2), the upper fastening ring (5) and a mounting hole in the right wing plate (6) in sequence and is then tightened onto a nut (8). The lower bolt on the rear side of the seed and fertilizer tube (9) passes through a mounting hole in the left wing plate (2), the lower fastening ring (7) and a mounting hole in the right wing plate (6) in sequence and is then tightened onto a nut (8).
8. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 7, characterized in that, Both ends of the upper fastening ring (5) and the lower fastening ring (7) are provided with limiting plates, and the front end of each limiting plate abuts against the seed fertilizer tube (9).
9. The sliding blade inverted T-shaped furrow opener for no-till seeders according to claim 1, characterized in that, The grooving cutter (4) has a quarter-circle structure, with its top side perpendicular to the connecting column (1). The cutting edge of the grooving cutter (4) is arc-shaped, and the front side of the connecting column (1) connected to the grooving cutter (4) adopts a rounded transition.
10. The sliding blade inverted T-shaped furrow opener for a no-till seeder according to claim 1, characterized in that, The lower side of the inverted T-shaped trenching component (10) and the bottom end of the trenching cutter (4) are located on the same arc surface, and the upper side of the inverted T-shaped trenching component (10) is an upwardly convex arc surface.