An adjustable seed opener

The design of the lifting and pitch-changing mechanism enables flexible adjustment of trenching depth and row spacing, solving the problem that existing trenching machines cannot be adjusted and improving the applicability of the trenching machine.

CN224368350UActive Publication Date: 2026-06-19ZHOUKOU ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHOUKOU ACAD OF AGRI SCI
Filing Date
2025-07-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The trenching shovels of existing trenching machines are mostly fixed, making it impossible to adjust the trenching depth and row spacing, which makes it difficult to meet the needs of different agricultural products.

Method used

An adjustable seeding and ditching machine was designed. The ditching depth and row spacing can be adjusted through a lifting mechanism and a pitch-changing mechanism. The lifting mechanism drives the lifting platform to move through a screw and guide rod, and the pitch-changing mechanism adjusts the spacing of the ditching shovels through a cylinder and a slider.

Benefits of technology

It enables flexible adjustment of trenching depth and row spacing, improving the practicality of the trenching machine and meeting the needs of planting personnel.

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Abstract

This utility model relates to the field of agricultural planting technology, specifically disclosing an adjustable seeding and ditching machine, including a mounting frame and a lifting mechanism. The lifting mechanism is equipped with a pitch-changing mechanism. Fixed shafts are located on both sides of the mounting frame, with rollers mounted at one end of each fixed shaft. A control cabinet is fixed to the upper surface of the mounting frame. Through the lifting and pitch-changing mechanisms, the power component of the lifting mechanism drives the screw to rotate, causing the lifting platform to move up and down along the guide rod. This, in turn, moves the ditching shovels on the pitch-changing mechanism, adjusting the ditching depth. The cylinder extension and retraction of the pitch-changing mechanism moves the active slider, causing the sliding rod to slide within the groove of the active slider. This, in turn, moves the driven slider laterally along the I-shaped slide rail on the base plate, adjusting the spacing between the ditching shovels and thus the row spacing. This increases the practicality of the ditching machine and meets the needs of planters.
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Description

Technical Field

[0001] This utility model relates to the field of farmland planting technology, and in particular to an adjustable seeding and ditching machine. Background Technology

[0002] Ditching is frequently required for agricultural planting. Manual ditching is inefficient, labor-intensive, and unsuitable for the demands of modern large-scale farming. Currently, ditching machines are largely used to replace manual labor for field ditching. However, since different agricultural products require adjustments to ditch depth and row spacing, and the ditching blades of some existing ditching machines are mostly fixed, their practicality is limited and they cannot meet the needs of growers. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable seeding and ditching machine to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] An adjustable seeder and furrow opener includes a mounting frame and a lifting mechanism. The lifting mechanism includes a lifting frame fixed to the mounting frame, a guide rod and a screw rod mounted on the lifting frame, a lifting platform mounted on the screw rod, a synchronous pulley at one end of the screw rod, and a power component connected to the other end of the screw rod. The lifting mechanism includes a pitch-changing mechanism, which includes a base plate, a cylinder mounted on the base plate, a driving slider fixed at the output end of the cylinder, multiple sets of sliding rods on the driving slider, a driven slider fixed at the lower end of the sliding rods, a furrowing shovel fixed on the lower surface of the driven slider, fixed shafts on both sides of the mounting frame, rollers mounted at one end of the fixed shafts, and a control cabinet fixed on the upper surface of the mounting frame.

[0006] Further configuration: multiple sets of guide rods are arranged opposite each other, and the guide rods are fixedly connected to the lifting frame. Two sets of screw screws are arranged opposite each other, and the screw screws are rotatably connected to the lifting frame. The lifting platform and the screw screws are connected by threads. The lifting platform and the guide rods are slidably connected. The synchronous pulleys are fixedly connected to the screw screws, and the synchronous pulleys are driven by synchronous belts.

[0007] Further configuration: The base plate is fixed on the lifting platform. Multiple sets of I-shaped slide rails are provided on the upper surface of the base plate. The active slider is slidably connected to the I-shaped slide rails on the base plate. Multiple sets of slide grooves are opened on the upper surface of the active slider. The sliding rod is slidably connected in the slide groove of the active slider. The driven slider is slidably connected to the I-shaped slide rails on the base plate.

[0008] Further configuration: The fixed shaft is fixedly connected to the mounting bracket, and the roller is rotatably connected to the fixed shaft.

[0009] Further configuration: Both the power unit and the cylinder are electrically connected to the control cabinet.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] With the addition of a lifting mechanism and a pitch-changing mechanism, the power component of the lifting mechanism drives the screw to rotate, causing the lifting platform to move up and down along the guide rod. This, in turn, raises and lowers the trenching shovels on the pitch-changing mechanism, thereby adjusting the trenching depth. The cylinder extension and retraction of the pitch-changing mechanism moves the active slider, causing the sliding rod to slide within the groove of the active slider. This, in turn, moves the driven slider laterally along the I-shaped slide rail on the base plate, allowing adjustment of the spacing between the trenching shovels and thus the trenching row spacing. This increases the practicality of the trenching machine and meets the needs of planters. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is an isometric view of an adjustable seeder and furrow opener according to the present invention;

[0014] Figure 2 This is a front sectional view of an adjustable seeding and ditching machine according to the present invention;

[0015] Figure 3 This is a schematic diagram of the variable pitch mechanism of the adjustable seeder and furrow opener described in this utility model;

[0016] Figure 4 This is a schematic diagram of the lifting mechanism of an adjustable seeding and ditching machine according to the present invention.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. Mounting frame; 2. Lifting mechanism; 21. Lifting frame; 22. Guide rod; 23. Lead screw; 24. Lifting platform; 25. Synchronous pulley; 26. Power assembly; 3. Pitch-changing mechanism; 31. Base plate; 32. Cylinder; 33. Driving slider; 34. Sliding rod; 35. Driven slider; 36. Trenching shovel; 4. Fixed shaft; 5. Roller; 6. Control cabinet. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figures 1-4 As shown, an adjustable seeder and furrow opener includes a mounting frame 1 and a lifting mechanism 2. The lifting mechanism 2 is equipped with a pitch-changing mechanism 3. Fixed shafts 4 are provided on both sides of the mounting frame 1. A roller 5 is installed at one end of the fixed shaft 4. A control cabinet 6 is fixed on the upper surface of the mounting frame 1.

[0023] In this embodiment: the lifting mechanism 2 includes a lifting frame 21 fixed on the mounting frame 1. A guide rod 22 and a screw 23 are installed on the lifting frame 21. A lifting platform 24 is installed on the screw 23. The guide rod 22 is used to control the moving direction of the lifting platform 24. The screw 23 is used to drive the lifting platform 24 to move. One end of the screw 23 is provided with a synchronous pulley 25 for transmission. One end of the screw 23 is connected to a power component 26 for providing power. Multiple sets of guide rods 22 are arranged opposite each other and are fixedly connected to the lifting frame 21. Two sets of screw 23 are arranged opposite each other and are rotatably connected to the lifting frame 21. The lifting platform 24 and the screw 23 are connected by a thread. The lifting platform 24 and the guide rod 22 are slidably connected. The synchronous pulley 25 is fixedly connected to the screw 23, and the synchronous pulleys 25 are driven by a synchronous belt.

[0024] In this embodiment: the pitch-changing mechanism 3 includes a base plate 31, on which a cylinder 32 is mounted. An active slider 33 is fixed to the output end of the cylinder 32. The cylinder 32 drives the active slider 33 to move. Multiple sets of sliding rods 34 are provided on the active slider 33. A driven slider 35 is fixed to the lower end of each sliding rod 34. The sliding rods 34 control the lateral movement of the driven slider 35. A trenching shovel 36 is fixed to the lower surface of the driven slider 35. The driven slider 35 drives the trenching shovel 36 to adjust the row spacing. The trenching shovel 36 is used for trenching. The base plate 31 is fixed to the lifting mechanism. On platform 24, the upper surface of base plate 31 is provided with multiple sets of I-shaped slide rails. The active slider 33 is slidably connected to the I-shaped slide rails of base plate 31. Multiple sets of slide grooves are opened on the upper surface of the active slider 33. The sliding rod 34 is slidably connected in the slide groove of the active slider 33. The driven slider 35 is slidably connected to the I-shaped slide rails of base plate 31. The fixed shaft 4 is fixedly connected to the mounting bracket 1. The roller 5 is rotatably connected to the fixed shaft 4. The power assembly 26 and the cylinder 32 are both electrically connected to the control cabinet 6. The control cabinet 6 is used to control the start and stop of the power assembly 26 and the cylinder 32.

[0025] The working principle and usage process of this utility model are as follows: During the trenching process, when it is necessary to adjust the trenching depth, the power component 26 of the lifting mechanism 2 is started through the control cabinet 6, which drives the screw 23 to rotate and moves the lifting platform 24 up and down along the guide rod 22. This can drive the trenching shovel 36 on the pitch mechanism 3 to rise and fall, thereby achieving the purpose of adjusting the trenching depth. When it is necessary to adjust the trenching spacing, the cylinder 32 of the pitch mechanism 3 is started through the control cabinet 6. The cylinder 32 extends and retracts, driving the active slider 33 to move, so that the sliding rod 34 slides in the groove of the active slider 33, thereby driving the driven slider 35 to move laterally along the I-shaped slide rail on the base plate 31. This can realize the adjustment of the spacing between the trenching shovels 36, thereby achieving the purpose of adjusting the trenching row spacing.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An adjustable seeder and furrow opener, comprising a mounting frame (1), characterized in that: It also includes a lifting mechanism (2), which includes a lifting frame (21) fixed on the mounting frame (1), a guide rod (22) and a screw (23) mounted on the lifting frame (21), a lifting platform (24) mounted on the screw (23), a synchronous pulley (25) at one end of the screw (23), and a power assembly (26) connected to the other end of the screw (23). The lifting mechanism (2) is equipped with a pitch-changing mechanism (3), which includes a base plate (3). 1) A cylinder (32) is installed on the base plate (31). An active slider (33) is fixed at the output end of the cylinder (32). Multiple sliding rods (34) are provided on the active slider (33). A driven slider (35) is fixed at the lower end of the sliding rod (34). A trenching shovel (36) is fixed on the lower surface of the driven slider (35). Fixed shafts (4) are provided on opposite sides of the mounting frame (1). A roller (5) is installed at one end of the fixed shaft (4). A control cabinet (6) is fixed on the upper surface of the mounting frame (1).

2. The adjustable seeder and furrow opener according to claim 1, characterized in that: Multiple sets of guide rods (22) are arranged opposite each other. The guide rods (22) are fixedly connected to the lifting frame (21). Two sets of spiral screws (23) are arranged opposite each other. The spiral screws (23) are rotatably connected to the lifting frame (21). The lifting platform (24) is threadedly connected to the spiral screws (23). The lifting platform (24) is slidably connected to the guide rods (22). The synchronous pulleys (25) are fixedly connected to the spiral screws (23). The synchronous pulleys (25) are driven by synchronous belts.

3. The adjustable seeder and furrow opener according to claim 1, characterized in that: The base plate (31) is fixed on the lifting platform (24). The upper surface of the base plate (31) is provided with multiple sets of I-shaped slide rails. The active slider (33) is slidably connected to the I-shaped slide rails of the base plate (31). The upper surface of the active slider (33) is provided with multiple sets of slide grooves. The sliding rod (34) is slidably connected to the slide groove of the active slider (33). The driven slider (35) is slidably connected to the I-shaped slide rails of the base plate (31).

4. An adjustable seeder and furrow opener according to claim 1, characterized in that: The fixed shaft (4) is fixedly connected to the mounting bracket (1), and the roller (5) is rotatably connected to the fixed shaft (4).

5. An adjustable seeder and furrow opener according to claim 1, characterized in that: Both the power unit (26) and the cylinder (32) are electrically connected to the control cabinet (6).