Seeding device convenient for spacing adjustment and used for wild jujube planting

The depth and spacing of the discharge pipe of the sowing device for jujube planting are automatically adjusted by a motor-driven screw transmission system and locking bolts, which solves the problems of cumbersome manual adjustment and inconsistent precision in the existing technology, and realizes efficient and precise sowing operation.

CN224192469UActive Publication Date: 2026-05-05YULIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YULIN UNIV
Filing Date
2025-06-05
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The depth adjustment of the discharge pipe of the existing sowing device for jujube planting relies on manual operation, which results in cumbersome operation, low efficiency and difficulty in ensuring consistent adjustment accuracy.

Method used

The system employs a motor-driven screw transmission system, which uses the synergistic guiding effect of the limit block and the limit groove to achieve vertical lifting and lowering adjustment of the discharge pipe. Combined with the locking bolt, it achieves stepless adjustment of the horizontal spacing of the discharge pipe, eliminating the traditional manual screwing method and ensuring adjustment accuracy and efficiency.

Benefits of technology

It improves the efficiency and precision of adjusting the depth and spacing of the discharge pipe, meets the requirements of precision agriculture, reduces the labor intensity of operators, and improves the emergence rate and operation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of seeding devices, in particular to a seeding device convenient for spacing adjustment for wild jujube planting, which comprises a machine body, support boxes are fixedly mounted on two sides of the bottom surface of the machine body, and transverse plates are fixedly connected in the support boxes. A motor mounted at the top of the transverse plate is started, and a motor output shaft drives a screw to rotate; under the cooperative guiding action of the limiting block and the limiting groove, the movable block on the screw precisely displaces in the axial direction, and meanwhile the fixed block rigidly connected with the movable block is driven to synchronously move; the fixed block transmits motion to the adjusting block through the connecting rod, and finally vertical lifting adjustment of the discharging pipe is realized, so that a traditional manual screwing adjustment mode is abandoned, the adjustment efficiency is remarkably improved, the displacement precision is ensured through screw transmission, the depths of the discharging pipes of different seeding units are kept consistent, and the working efficiency is improved. The strict requirement of precision agriculture on the seeding depth is effectively met, and meanwhile, the labor intensity of operators is greatly reduced, so that the device is convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of sowing device technology, specifically a sowing device for planting jujube that is easy to adjust the spacing. Background Technology

[0002] Seeders are a crucial part of agricultural production. They must sow seeds into the field within a short planting time, according to agricultural technical requirements, to ensure the crop receives optimal growth conditions. The quality of sowing directly affects seedling emergence, seedling vigor, and thus yield. A sowing device for jujube cultivation is an agricultural machine used for the efficient and precise sowing of jujube seeds.

[0003] The existing Chinese patent with publication number CN222216426U discloses a seeding device with adjustable seeding spacing. The existing technical solution has the following defects: Although the above technical solution facilitates the user to assemble different seeding wheels according to different crops by detachably connecting the seed wheel and the intermediate rotating shaft; and facilitates the adjustment of the size of the driven wheel according to different crops by detachably connecting the driven wheel and the intermediate rotating shaft, thereby ensuring the seeding spacing of the same row of seeds; and adjusts the extension depth of the discharge pipe by tightening the screw on the adjusting ring, the discharge pipe depth adjustment mechanism in the above technical solution relies entirely on manual operation. It is necessary to repeatedly turn the screw on the adjusting ring to complete the depth adjustment. This adjustment method is cumbersome, inefficient, and makes it difficult to ensure the consistency of adjustment accuracy.

[0004] In view of the above, a sowing device for jujube planting with easy-to-adjust spacing is proposed to solve the problem. It can automatically adjust the depth position of the discharge pipe, which is convenient to use and can ensure the consistency of adjustment accuracy. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a sowing device for planting jujubes with easily adjustable spacing, thus solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a sowing device for planting jujubes with adjustable spacing, comprising a body, support boxes fixedly installed on both sides of the bottom surface of the body, and a horizontal plate fixedly connected inside the support boxes. A motor is fixedly installed at the middle position of the top surface of the horizontal plate, and a screw is fixedly connected to the output end of the motor. A moving block is threadedly connected to the screw, and a fixing block is fixedly connected to one side surface of the moving block through a slot opened on one side surface of the support box. A connecting rod is fixedly connected between the two fixing blocks, and an adjusting block is passed through the connecting rod. A discharge pipe is fixedly installed on the rear end surface of the adjusting block. A discharge hopper is installed on the bottom surface of the body, and a corrugated pipe is installed on the bottom surface of the discharge hopper. One end of the corrugated pipe extends into the interior of the discharge pipe. A limiting block is fixedly connected at the middle position of one side surface of the moving block, and one end of the limiting block extends into the interior of a limiting groove opened on one side of the inner wall of the support box.

[0009] Optionally, a locking bolt is provided through the front surface of the adjusting block, and one end of the locking bolt extends into the interior of an adjusting hole opened on the front surface of the connecting rod.

[0010] Optionally, multiple adjustment holes are provided, and the multiple adjustment holes are evenly distributed on the front end surface of the connecting rod, and the locking bolt is threadedly connected to the adjustment holes.

[0011] Optionally, a connecting frame is fixedly installed on the front surface of the support box, and a connecting block is provided on one side of the connecting frame. A soil covering plate is fixedly installed on one end of the connecting block. The connecting block is rotatably connected to the connecting frame through a pin. A spring is installed between the soil covering plate and the connecting frame.

[0012] Optionally, the fixing block and the through groove are rectangular structures, and one end of the fixing block passes through the through groove and is slidably connected to the through groove.

[0013] Optionally, the movable block is matched with the support box.

[0014] Optionally, one end of the corrugated pipe extends into the discharge pipe, and the corrugated pipe is matched with the discharge pipe.

[0015] (III) Beneficial Effects

[0016] This utility model provides a seeding device for planting jujube trees with easily adjustable spacing, which has the following features:

[0017] Beneficial effects:

[0018] 1. This utility model involves starting a motor mounted on the top of a horizontal plate, with the motor output shaft driving a screw to rotate. Under the coordinated guidance of a limiting block and a limiting groove, the moving block on the screw precisely moves axially, simultaneously driving the rigidly connected fixed block to move synchronously. The fixed block transmits the motion to the adjusting block via a connecting rod, ultimately achieving vertical lifting and lowering adjustment of the discharge pipe. This eliminates the traditional manual turning adjustment method, significantly improving adjustment efficiency and ensuring displacement accuracy through screw transmission. This ensures that the discharge pipe depth of different sowing units remains highly consistent, effectively meeting the stringent requirements of precision agriculture for sowing depth. Simultaneously, it greatly reduces the labor intensity of operators, making it convenient to use.

[0019] 2. This utility model allows for stepless adjustment of the horizontal spacing of the discharge pipe by loosening the locking bolt at the front end of the adjusting block, disengaging it from the adjusting hole on the connecting rod. This not only quickly adapts to the row spacing requirements of different crops but also ensures the positioning accuracy of the spacing adjustment through the precision-machined adjusting holes. Furthermore, the inclined design of the soil-covering plate at the rear of the device automatically backfills the soil on both sides of the furrow after sowing, ensuring full contact between the seeds and the soil. This improves the germination rate and guarantees operational efficiency. The overall structure fully balances adjustment flexibility and operational reliability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a front view of the present utility model;

[0022] Figure 3 This is an enlarged view of A of the present invention;

[0023] Figure 4 This is a schematic diagram of the connecting rod and adjusting block structure of this utility model.

[0024] In the diagram: 1. Machine body; 2. Motor; 3. Support box; 4. Horizontal plate; 5. Limiting groove; 6. Limiting block; 7. Moving block; 8. Screw; 9. Fixing block; 10. Discharge pipe; 11. Adjusting block; 12. Connecting rod; 13. Locking bolt; 14. Adjusting hole; 15. Discharge hopper; 16. Corrugated pipe; 17. Through groove; 18. Covering plate; 19. Connecting block; 20. Connecting frame; 21. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1-4 A jujube planting device with adjustable spacing includes a body 1. Support boxes 3 are fixedly installed on both sides of the bottom surface of the body 1, and are welded to the body 1 to ensure their stability. A horizontal plate 4 is fixedly connected inside the support box 3. A motor 2 is fixedly installed at the middle of the top surface of the horizontal plate 4, and a screw 8 is fixedly connected to the output end of the motor 2. A moving block 7 is threaded onto the screw 8. A fixing block 9 is fixedly connected to one side of the moving block 7 through a slot 17 formed on one side of the support box 3. The fixing block 9 and the slot 17 are rectangular structures. The width of the fixing block 9 is smaller than the width of the slot 17, allowing the fixing block 9 to move within the slot 17. This moves the adjusting block 11 on the connecting rod 12, causing the discharge pipe 10 on the adjusting block 11 to move, thus automatically adjusting the depth of the discharge pipe 10. A connecting rod 12 is fixedly connected between the two fixing blocks 9, and the adjusting block 11 passes through the connecting rod 12. The adjusting block 11 is slidably connected to the connecting rod 12; a discharge pipe 10 is fixedly installed on the rear end surface of the adjusting block 11, wherein the discharge pipe 10 is made of stainless steel and is fixedly connected to the adjusting block 11 by a clamp; a discharge hopper 15 is installed on the bottom surface of the machine body 1, and a corrugated pipe 16 is installed on the bottom surface of the discharge hopper 15, one end of the corrugated pipe 16 extends into the interior of the discharge pipe 10, the top end of the corrugated pipe 16 is fixedly connected to the discharge hopper 15, and one end of the corrugated pipe 16 is inserted into the discharge pipe 10. The movable connection allows seeds to be conveyed into the discharge pipe 10; a limiting block 6 is fixedly connected to the middle position of one side surface of the movable block 7, and one end of the limiting block 6 extends into the interior of the limiting groove 5 opened on one side of the inner wall of the support box 3. The limiting block 6 and the limiting groove 5 are rectangular structures. One end of the limiting block 6 extends into the interior of the limiting groove 5 and slides in connection with the limiting groove 5. Through the cooperation of the limiting block 6 and the limiting groove 5, the movable block 7 on the screw 8 can be limited, so that the movable block 7 can move up and down on the screw 8;

[0027] A locking bolt 13 is provided through the front end surface of the adjusting block 11, and one end of the locking bolt 13 extends into the interior of the adjusting hole 14 opened on the front end surface of the connecting rod 12. One end of the locking bolt 13 extends into the adjusting hole 14 and is threadedly connected to the adjusting hole 14, so that the adjusting block 11 can be fixed on the connecting rod 12.

[0028] Multiple adjustment holes 14 are provided and are evenly distributed on the front end surface of the connecting rod 12. The locking bolt 13 is threadedly connected to the adjustment holes 14. The adjustment holes 14 and the locking bolt 13 are circular and are threadedly connected. By using multiple adjustment holes 14, the spacing of the discharge pipes 10 on the adjustment block 11 can be adjusted to adapt to the row spacing requirements of different crops.

[0029] A connecting frame 20 is fixedly installed on the front surface of the support box 3, and a connecting block 19 is provided on one side of the connecting frame 20. A soil covering plate 18 is fixedly installed on one end of the connecting block 19. The connecting block 19 is rotatably connected to the connecting frame 20 through a pin. A spring 21 is installed between the soil covering plate 18 and the connecting frame 20. The soil covering plate 18 adopts an inclined design. The ends of the spring 21 are fixedly connected to the soil covering plate 18 and the connecting frame 20 respectively. Through the coordinated use of the soil covering plate 18, the connecting block 19, the connecting frame 20 and the spring 21, the soil on both sides of the trench can be automatically backfilled after sowing to ensure that the seeds are in full contact with the soil. This not only improves the germination rate but also ensures the work efficiency. The overall structure fully takes into account the flexibility of adjustment and the reliability of operation.

[0030] The fixing block 9 and the through groove 17 are rectangular structures. One end of the fixing block 9 passes through the through groove 17 and is slidably connected to the through groove 17, so that the fixing block 9 can move in the through groove 17, thereby driving the connecting rod 12 to move up and down.

[0031] The movable block 7 is matched with the support box 3. The movable block 7 and the support box 3 are rectangular structures. The length and width of the movable block 7 are smaller than the length and width of the support box 3, which allows the movable block 7 to move up and down in the support box 3.

[0032] One end of the corrugated pipe 16 extends into the discharge pipe 10. The corrugated pipe 16 is matched with the discharge pipe 10. One end of the corrugated pipe 16 is movably connected to the discharge pipe 10. When adjusting the spacing of the discharge pipe 10, it will not cause any impact.

[0033] Working principle of this utility model:

[0034] The motor 2 mounted on the top of the horizontal plate 4 is activated, and the output shaft of the motor 2 drives the screw 8 to rotate. Under the coordinated guidance of the limiting block 6 and the limiting groove 5, the moving block 7 on the screw 8 moves precisely along the axial direction, simultaneously driving the fixed block 9 rigidly connected to it to move synchronously. The fixed block 9 transmits the motion to the adjusting block 11 through the connecting rod 12, ultimately realizing the vertical lifting and lowering adjustment of the discharge pipe 10. This eliminates the traditional manual turning adjustment method, significantly improving adjustment efficiency and ensuring displacement accuracy through the screw 8 transmission. This ensures that the depth of the discharge pipe 10 of different sowing units remains highly consistent, effectively meeting the strict requirements of precision agriculture for sowing depth, while also greatly reducing the labor of operators. The device is designed to be strong and easy to use. By loosening the locking bolt 13 at the front end of the adjusting block 11, it can be disengaged from the adjusting hole 14 on the connecting rod 12. This allows the adjusting block 11 to move axially along the connecting rod 12, thereby achieving stepless adjustment of the horizontal spacing of the discharge pipe 10. This not only allows it to quickly adapt to the row spacing requirements of different crops, but also ensures the positioning accuracy of the spacing adjustment through the precision-machined adjusting hole 14. At the same time, the soil covering plate 18 at the rear of the device adopts an inclined design, which can automatically backfill the soil on both sides of the furrow after sowing, ensuring that the seeds are in full contact with the soil. This improves the germination rate and ensures the efficiency of operation. The overall structure fully considers the flexibility of adjustment and the reliability of operation.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seeding device for planting jujube with easily adjustable spacing, comprising a body (1), characterized in that: Support boxes (3) are fixedly installed on both sides of the bottom surface of the body (1), and a horizontal plate (4) is fixedly connected inside the support box (3). A motor (2) is fixedly installed at the middle position of the top surface of the horizontal plate (4), and a screw (8) is fixedly connected to the output end of the motor (2). A moving block (7) is threadedly connected to the screw (8), and a fixing block (9) is fixedly connected to one side surface of the moving block (7) through a through groove (17) opened on one side surface of the support box (3). A connecting rod (12) is fixedly connected between the two fixing blocks (9). An adjusting block (11) is provided through the connecting rod (12). A discharge pipe (10) is fixedly installed on the rear end surface of the adjusting block (11). A discharge hopper (15) is installed on the bottom surface of the machine body (1). A corrugated pipe (16) is installed on the bottom surface of the discharge hopper (15). One end of the corrugated pipe (16) extends into the interior of the discharge pipe (10). A limiting block (6) is fixedly connected at the middle position of one side surface of the moving block (7). One end of the limiting block (6) extends into the interior of the limiting groove (5) opened on one side of the inner wall of the support box (3).

2. The sowing device for planting jujube trees with easily adjustable spacing according to claim 1, characterized in that: The front end surface of the adjusting block (11) is provided with a locking bolt (13), and one end of the locking bolt (13) extends into the interior of the adjusting hole (14) opened on the front end surface of the connecting rod (12).

3. A sowing device for planting jujube trees with adjustable spacing as described in claim 2, characterized in that: Multiple adjustment holes (14) are provided, and the multiple adjustment holes (14) are evenly distributed on the front end surface of the connecting rod (12). The locking bolt (13) is threadedly connected to the adjustment holes (14).

4. The sowing device for planting jujube trees with adjustable spacing according to claim 1, characterized in that: A connecting frame (20) is fixedly installed on the front surface of the support box (3), and a connecting block (19) is provided on one side of the connecting frame (20). A soil covering plate (18) is fixedly installed on one end of the connecting block (19). The connecting block (19) is rotatably connected to the connecting frame (20) by a pin. A spring (21) is installed between the soil covering plate (18) and the connecting frame (20).

5. A sowing device for planting jujube trees with adjustable spacing as described in claim 1, characterized in that: The fixing block (9) and the through groove (17) are rectangular structures, and one end of the fixing block (9) passes through the through groove (17) and is slidably connected to the through groove (17).

6. A sowing device for planting jujube trees with adjustable spacing as described in claim 1, characterized in that: The movable block (7) is matched with the support box (3).

7. A sowing device for planting jujube trees with adjustable spacing according to claim 1, characterized in that: One end of the corrugated pipe (16) extends into the discharge pipe (10), and the corrugated pipe (16) is matched with the discharge pipe (10).

Citation Information

Patent Citations

  • Seeding device with adjustable seeding spacing

    CN222216426U