Adjustable crop uniform seeding machine
The adjustable crop seeder design solves the problem of fixed sowing spacing and depth, enabling flexible adjustment of sowing row spacing and depth, ensuring uniform seed distribution, improving the applicability and uniformity of sowing, and adapting to the planting needs of various crops.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 曲阜市息陬镇农业综合服务中心
- Filing Date
- 2025-07-16
- Publication Date
- 2026-04-14
AI Technical Summary
Existing crop seeders have fixed sowing spacing and depth, making it difficult to adapt to the planting needs of different crops, and there is also the problem of uneven seed drop, which affects crop yield.
An adjustable crop uniform seeder was designed. The sowing row spacing and depth can be flexibly adjusted through the adjustment mechanism and drive mechanism. Combined with the discharge mechanism, the seed output is ensured to be uniform. The discharge mechanism includes a spiral conveyor blade and a dispersing rod to achieve uniform seed delivery. The adjustment mechanism is driven by a second motor to lift the plate and slide rail to adjust the spacing of the mounting arms. The drive mechanism is controlled by a hydraulic cylinder to control the depth of the furrow opener.
It enables flexible adjustment of sowing row spacing and depth, ensuring uniform seed distribution, improving the applicability and uniformity of sowing, adapting to the planting needs of various crops, and increasing crop yield.
Smart Images

Figure CN224111671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural seeding equipment technology, specifically an adjustable uniform crop seeder. Background Technology
[0002] In agricultural production, sowing is a key step that determines crop yield. Different crops (such as corn, soybeans, and vegetables) have significant differences in sowing spacing and depth. For example, corn requires a row spacing of 50-60cm and a sowing depth of 3-5cm, while vegetable crops usually require a row spacing of 20-30cm and a sowing depth of 1-2cm.
[0003] Existing crop seeders mostly have fixed sowing spacing and depth, which makes it difficult to adapt to the planting needs of different crops. When changing crop varieties, the entire sowing component needs to be replaced, which is cumbersome and inefficient. At the same time, some seeders have the problem of uneven seed drop, which can easily lead to uneven seedling density and affect crop yield. Therefore, it is necessary to design an adjustable uniform crop seeder to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable crop uniform seeder to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable crop uniform seeder, comprising a frame, wheels installed at both ends of the bottom of the frame, a connecting seat for easy connection with traction equipment on one side of the frame, a seed box on the top of the frame and fixed by multiple sets of bolts, a box cover on the top of the seed box, multiple discharge ports at the bottom of the seed box, a discharge mechanism for easy uniform seed output on the inner side of each discharge port, two sets of mounting frames on the inner side of the frame, one set of mounting frames fixedly connected to the frame, and the other set of mounting frames slidably connected to the frame and connected to the top of a drive mechanism for easy lifting and lowering, multiple sets of mounting arms connected to the inner side of both sets of mounting frames by an adjustment mechanism for easy spacing adjustment, wherein a seed metering pipe is installed on one side of each set of mounting arms on the inner side of the fixedly connected mounting frame, and the seed metering pipes are connected to the corresponding discharge ports by connecting hoses, and a furrow opener is installed on one side of each set of mounting arms on the inner side of the slidably connected mounting frame.
[0006] Preferably, the adjusting mechanism includes a second motor. A transverse slide rail is provided on one inner wall of the mounting frame, and vertical slide rails are provided at both ends of the transverse slide rail. Multiple sets of mounting arms are slidably connected to the transverse slide rail. Each set of mounting arms has an abutment rod on one side. A lifting plate is provided on the inner side of the mounting frame, located on one side of the transverse slide rail. Both ends of the lifting plate are slidably connected to two sets of vertical slide rails. Multiple sets of abutment grooves are formed on one side of the lifting plate, and multiple sets of abutment rods pass through and are slidably connected to the inner side of the multiple sets of abutment grooves. A connecting plate is provided on the other side of the lifting plate. A mounting plate is provided near the top of one side of the mounting frame. The second motor is mounted on the top of the mounting plate, and a screw is connected to the output end of the second motor. The screw is threadedly connected to the connecting plate.
[0007] Preferably, the two sets of the second motors are electrically connected.
[0008] Preferably, the horizontal slide rail and the two sets of vertical slide rails are arranged in a T-shape.
[0009] Preferably, the driving mechanism includes a hydraulic cylinder, which is mounted on the top of the frame. One end of the hydraulic cylinder extends to the inner side of the frame and is connected to a connecting frame. The bottom of the connecting frame is connected to the top of the mounting frame. Limiting grooves are provided at both ends of the mounting frame, and both sets of limiting grooves are slidably connected to the protrusions on the inner wall of the frame.
[0010] Preferably, the discharge mechanism includes a first motor, and a rotating shaft is provided on the inner side of each of the multiple sets of discharge ports. A spiral conveying blade is sleeved on the outer ring of each of the multiple sets of rotating shafts. Two sets of dispersing rods are symmetrically installed on the outer ring of each of the multiple sets of rotating shafts above the spiral conveying blades. One end of each of the multiple sets of rotating shafts extends to the outside of the seed box and is connected to a turntable. Each of the multiple sets of turntables is rotatably connected to the inner side of the fixed frame. Adjacent sets of turntables are connected by a conveyor belt. The first motor is installed on the top of the fixed frame, and the output end of the first motor extends to the inner side of the fixed frame and is connected to one set of turntables.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model can move the frame by means of a traction device. Seeds in the seed box are evenly transported to the seed metering pipe through the discharge port and the seed metering is completed. At the same time, the drive mechanism can drive the mounting frame that is slidably connected to the frame to lift and lower, so as to adjust the furrowing depth of the furrow opener. In addition, the multiple mounting arms on the inner side of the two sets of mounting frames can be adjusted by the adjustment mechanism to adapt to the planting row spacing of different crops. Thus, through the above structure, the flexible adjustment of the sowing row spacing and depth can be realized, which can adapt to the planting needs of a variety of crops and improve the applicability and uniformity of sowing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0014] Figure 2 This is a bottom view of the present invention;
[0015] Figure 3 This is a side view and a top view of the present invention;
[0016] Figure 4 This is a side sectional view of the present invention;
[0017] Figure 5 This is a sectional view of the side of the mounting bracket section;
[0018] Figure 6 This is a top side view of the mounting bracket section;
[0019] Figure 7 for Figure 4 Enlarged view of part A in the image;
[0020] Figure 8 for Figure 5 Enlarged view of part B in the image.
[0021] In the diagram: 1. Frame, 2. Wheel, 3. Connecting seat, 4. Seed box, 5. Box cover, 6. Discharge port, 7. Rotary shaft, 8. Spiral conveyor blade, 9. Dispersing rod, 10. Turntable, 11. Fixed frame, 12. Conveyor belt, 13. First motor, 14. Mounting frame, 15. Connecting frame, 16. Hydraulic cylinder, 17. Mounting arm, 18. Furrow opener, 19. Seed metering pipe, 20. Connecting hose, 21. Horizontal slide rail, 22. Abutment rod, 23. Vertical slide rail, 24. Lifting plate, 25. Abutment groove, 26. Connecting plate, 27. Mounting plate, 28. Second motor, 29. Screw, 30. Limiting groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] Please refer to Figure 1-8As shown, this utility model provides an adjustable crop uniform seeder, including a frame 1. Wheels 2 are installed at both ends of the bottom of the frame 1. A connecting seat 3 is provided on one side of the frame 1 for easy connection with traction equipment. A seed box 4 is provided on the top of the frame 1 and fixed by multiple sets of bolts. A box cover 5 is provided on the top of the seed box 4. Multiple discharge ports 6 are provided at the bottom of the seed box 4. Each of the multiple discharge ports 6 has a discharge mechanism on its inner side to facilitate uniform seed output. Two sets of mounting frames 14 are provided on the inner side of the frame 1. One set of mounting brackets is fixedly connected to the frame 1, and another set of mounting brackets 14 is slidably connected to the frame 1 and has a drive mechanism at the top for easy lifting and lowering. The inner sides of both sets of mounting brackets 14 are connected to multiple sets of mounting arms 17 through an adjustment mechanism for easy spacing adjustment. One side of each set of mounting arms 17 on the inner side of the fixedly connected mounting bracket 14 is equipped with a seed discharge pipe 19. Each set of seed discharge pipes 19 is connected to the corresponding discharge port 6 through a connecting hose 20. One side of each set of mounting arms 17 on the inner side of the slidably connected mounting bracket 14 is equipped with a furrow opener 18.
[0025] Specifically, during operation, the traction device drives the frame 1 to move via the connecting seat 3. Seeds in the seed box 4 are evenly conveyed to the seed discharging pipe 19 through the discharge port 6 and the discharging mechanism to complete the seed discharging. At the same time, the drive mechanism can drive the mounting frame 14, which is slidably connected to the frame 1, to rise and fall, so as to adjust the furrowing depth of the furrow opener 18. In addition, the multiple sets of mounting arms 17 on the inner side of the two sets of mounting frames 14 can adjust the spacing through the adjustment mechanism to adapt to the planting row spacing of different crops. Thus, through the above structure, the flexible adjustment of the sowing row spacing and depth is realized, which can adapt to the planting needs of various crops and improve the applicability and uniformity of sowing.
[0026] The adjustment mechanism includes a second motor 28. A transverse slide rail 21 is provided on one inner wall of the mounting frame 14. Vertical slide rails 23 are provided at both ends of the transverse slide rail 21. Multiple sets of mounting arms 17 are slidably connected to the transverse slide rail 21. Each set of mounting arms 17 has an abutment rod 22 on one side. A lifting plate 24 is provided on the inner side of the mounting frame 14, located on one side of the transverse slide rail 21. Both ends of the lifting plate 24 are slidably connected to two sets of vertical slide rails 23. Multiple sets of abutment grooves 25 are formed on one side of the lifting plate 24. Multiple sets of abutment rods 22 pass through the inner side of the multiple sets of abutment grooves 25 and are slidably connected to them. A connecting plate 26 is provided on the other side of the lifting plate 24. A mounting plate 27 is provided on one side of the mounting frame 14 near the top. A second motor 28 is installed on the top of the 7. The output end of the second motor 28 is connected to a screw 29. The screw 29 is threadedly connected to the connecting plate 26. When the second motor 28 is started, its output end drives the screw 29 to rotate. Through the threaded engagement with the connecting plate 26, it drives the lifting plate 24 to move up and down along the vertical slide rail 23. When the lifting plate 24 moves, multiple sets of inclined abutment grooves 25 on its side push the abutment rods 22 passing through them to move horizontally. This drives multiple sets of mounting arms 17 to slide synchronously along the transverse slide rail 21, realizing the adjustment of the spacing between the seed metering tube 19 or the furrow opener 18. Thus, through the setting, the precise and synchronous adjustment of the spacing between the seed metering tube 19 and the furrow opener 18 is realized, which can adapt to the planting needs of various crops and improve the applicability of sowing.
[0027] The two sets of second motors 28 are electrically connected, which enables the synchronous adjustment of the spacing of the mounting arms 17 on the two sets of mounting frames 14. This ensures that the seeding tube 19 and the furrow opener 18 are accurately aligned, avoiding misalignment of sowing due to inconsistent spacing and improving sowing accuracy. The horizontal slide rail 21 and the two sets of vertical slide rails 23 are all T-shaped, which provides stable limiting guidance for the mounting arms 17 and the lifting plate 24, preventing deviation or detachment during sliding and improving the stability of the adjustment mechanism and the structural connection strength.
[0028] The drive mechanism includes a hydraulic cylinder 16, which is mounted on the top of the frame 1. One end of the hydraulic cylinder 16 extends to the inner side of the frame 1 and is connected to a connecting frame 15. The bottom of the connecting frame 15 is connected to the top of the mounting frame 14. Both ends of the mounting frame 14 have limit grooves 30. Both sets of limit grooves 30 are slidably connected to the protrusions on the inner wall of the frame 1. When the hydraulic cylinder 16 is started, its piston rod can drive the connecting frame 15 to move up and down. The connecting frame 15 can push the mounting frame 14 connected to its bottom to rise and fall stably along the protrusions on the inner wall of the frame 1 under the guidance of the limit grooves 30. This allows for precise adjustment of the working height of the mounting frame 14 and the connected furrow opener 18. By setting these parameters, the equipment can be adapted to the different crop requirements for sowing depth, thus improving its applicability.
[0029] The discharge mechanism includes a first motor 13, multiple discharge ports 6 with rotating shafts 7 on their inner sides, spiral conveying blades 8 sleeved on the outer rings of the rotating shafts 7, and two sets of dispersing rods 9 symmetrically installed above the spiral conveying blades 8 on the outer rings of the rotating shafts 7. One end of each rotating shaft 7 extends to the outside of the seed box 4 and is connected to a turntable 10. The turntables 10 are rotatably connected to the inner side of the fixed frame 11, and adjacent turntables 10 are connected by a conveyor belt 12. The first motor 13 is installed on the top of the fixed frame 11, and the output end of the first motor 13 extends to... The inner side of the fixed frame 11 is connected to a set of turntables 10. After the first motor 13 is started, it can drive a set of turntables 10 to rotate. Through the conveyor belt 12, multiple sets of turntables 10 can be linked to rotate synchronously, so that multiple sets of rotating shafts 7 drive the spiral conveying blades 8 to rotate and convey seeds in the discharge port 6. At the same time, the dispersing rod 9 on the rotating shaft 7 can rotate and disperse the seeds evenly, thereby realizing the quantitative and uniform output of seeds to the seed metering pipe 19, ensuring the consistency of sowing density. Furthermore, by setting it, the uniform output of seeds can be achieved, ensuring the consistency of sowing density and improving sowing uniformity.
[0030] Working principle: First, seeds are placed in seed box 4 and then the box cover 5 is closed. The frame 1 is connected to the traction device via connecting seat 3 and moves with the help of wheels 2. The first motor 13 is started, which drives multiple sets of rotating shafts 7 to rotate through turntable 10 and conveyor belt 12. The dispersing rods 9 on the rotating shafts 7 can rotate accordingly and disperse the seeds evenly. The spiral conveyor blades 8 can discharge the seeds through the discharge port 6, connecting hose 20 and seed discharge pipe 19. When it is necessary to adjust the sowing spacing, the second motor 28 is started, and its output end can drive the screw 29 to rotate. Through the threaded engagement with the connecting plate 26, the lifting plate 24 can be driven to move up and down along the vertical slide rail 23. When the lifting plate 24 moves, multiple sets of tilting rods on its sides move up and down. The set contact groove 25 can push the contact rod 22 passing through it to move horizontally, thereby driving multiple sets of mounting arms 17 to slide synchronously along the transverse slide rail 21. This allows for the adjustment of the spacing between the seed metering tube 19 or the furrow opener 18. When adjusting the furrowing depth, the hydraulic cylinder 16 is activated, and its piston rod can drive the connecting frame 15 to move up and down. The connecting frame 15 can push the mounting frame 14 connected to its bottom to rise and fall stably, thereby precisely adjusting the working height of the mounting frame 14 and the connected furrow opener 18 to adapt to the sowing depth requirements of different crops. Finally, after the furrow opener 18 opens the furrow, the seed metering tube 19 sows the seeds evenly into the furrow, completing the sowing and thus completing the entire operation process.
[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An adjustable uniform crop seeder, comprising a frame (1), wherein wheels (2) are mounted at both ends of the bottom of the frame (1), and a connecting seat (3) is provided on one side of the frame (1) for easy connection with traction equipment, characterized in that: The top of the frame (1) is provided with a seed box (4) and fixed by multiple sets of bolts. The top of the seed box (4) is provided with a box cover (5). The bottom of the seed box (4) is provided with multiple sets of discharge ports (6). The inner side of each set of discharge ports (6) is provided with a discharge mechanism to facilitate uniform seed output. The inner side of the frame (1) is provided with two sets of mounting brackets (14). One set of mounting brackets (14) is fixedly connected to the frame (1), and the other set of mounting brackets (14) is slidably connected to the frame (1) and connected to the top with a [missing information - likely a type of bolt]. The drive mechanism facilitates its lifting and lowering. The inner sides of the two sets of mounting frames (14) are connected to multiple sets of mounting arms (17) through an adjustment mechanism that facilitates spacing adjustment. The mounting arms (17) inside the fixedly connected mounting frame (14) are each equipped with a seed discharge pipe (19). The seed discharge pipes (19) are connected to the corresponding discharge port (6) through a connecting hose (20). The mounting arms (17) inside the slidingly connected mounting frame (14) are each equipped with a furrow opener (18).
2. The adjustable crop uniform seeder according to claim 1, characterized in that: The adjustment mechanism includes a second motor (28). A horizontal slide rail (21) is provided on one inner wall of the mounting bracket (14). Vertical slide rails (23) are provided at both ends of the horizontal slide rail (21). Multiple sets of mounting arms (17) are slidably connected to the horizontal slide rail (21). A stop rod (22) is provided on one side of each set of mounting arms (17). A lifting plate (24) is provided on the inner side of the mounting bracket (14) on one side of the horizontal slide rail (21). The two ends of the lifting plate (24) are respectively slidably connected to the two sets of vertical slide rails (23). The lifting plate (24) has multiple sets of abutment grooves (25) on one side, and multiple sets of abutment rods (22) pass through the inner side of the multiple sets of abutment grooves (25) and slide to them. The lifting plate (24) has a connecting plate (26) on the other side. The mounting bracket (14) has a mounting plate (27) near the top on one side. The second motor (28) is mounted on the top of the mounting plate (27). The output end of the second motor (28) is connected to a screw (29). The screw (29) is threadedly connected to the connecting plate (26).
3. An adjustable crop uniform seeder according to claim 2, characterized in that: The two sets of the second motors (28) are electrically connected.
4. An adjustable crop uniform seeder according to claim 3, characterized in that: The horizontal slide rail (21) and the two sets of vertical slide rails (23) are all arranged in a T-shape.
5. An adjustable crop uniform seeder according to claim 1, characterized in that: The driving mechanism includes a hydraulic cylinder (16), which is mounted on the top of the frame (1). One end of the hydraulic cylinder (16) extends to the inner side of the frame (1) and is connected to a connecting frame (15). The bottom of the connecting frame (15) is connected to the top of the mounting frame (14). Both ends of the mounting frame (14) are provided with limit grooves (30), and both sets of limit grooves (30) are slidably connected to the protrusions on the inner wall of the frame (1).
6. An adjustable crop uniform seeder according to claim 1, characterized in that: The discharge mechanism includes a first motor (13), and a rotating shaft (7) is provided on the inner side of each of the multiple sets of discharge ports (6). The outer ring of each of the multiple sets of rotating shafts (7) is fitted with a spiral conveying blade (8). Two sets of dispersing rods (9) are symmetrically installed on the outer ring of each of the multiple sets of rotating shafts (7) above the spiral conveying blades (8). One end of each of the multiple sets of rotating shafts (7) extends to the outside of the seed box (4) and is connected to a turntable (10). Each of the multiple sets of turntables (10) is rotatably connected to the inner side of the fixed frame (11). Adjacent sets of turntables (10) are connected by a conveyor belt (12). The first motor (13) is installed on the top of the fixed frame (11). The output end of the first motor (13) extends to the inner side of the fixed frame (11) and is connected to a set of turntables (10).
Citation Information
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