A row spacing adjustable seeder

Abstract

The utility model discloses a kind of seeding machines with adjustable row spacing, it relates to seeding machine technical field, including main component, including rack, front press roll and rear press roll are rotationally arranged on rack, seed tank is fixed on rack, multiple furrowers are arranged below rack, furrower is connected with seed tank by conveying pipe;Adjusting component is set on rack, including support, support includes lifting column slidingly arranged in rack.The utility model has beneficial effects as follows: furrower is fixed on moving block by bolt, multiple moving blocks can realize synchronous movement, and adjacent moving blocks always keep same interval, user only needs to rotate handle to drive all furrowers equidistantly scatter or gather, ensure that the interval of adjacent row after adjustment is consistent, shorten row spacing adjustment time, while retaining the fine adjustment function of single furrower, facilitate to fine adjustment the position of single furrower according to actual planting demand.

Description

Technical Field

[0001] This utility model relates to the field of seeders, and in particular to a seeder with adjustable row spacing. Background Technology

[0002] Spoon-type vegetable planters are widely used in small-scale vegetable planting due to their simple structure and reliable operation. Their core components include a front pressure roller, a rear pressure roller, a seed box, furrow openers, and a crossbar. During operation, the front pressure roller prepares the seedbed and ensures a flat planting base, while the rear pressure roller compacts the soil covering and improves the stability of the seed germination environment. Seeds in the seed box are delivered to the furrow openers via a conveyor pipe, where precise sowing is achieved. The crossbar moves the furrow openers up and down to adjust the furrow depth, meeting the sowing needs of different vegetable varieties. However, existing spoon-type vegetable planters typically use bolts to directly fix multiple furrow openers to the crossbar for row spacing adjustment. When row spacing needs to be adjusted, each furrow opener's corresponding fixing bolt must be loosened one by one, and then the furrow opener must be manually pushed to slide on the crossbar to adjust its position. After adjustment, the bolts must be tightened again. This cumbersome and time-consuming process significantly reduces sowing efficiency. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing row spacing adjustable seeders, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is that the row spacing adjustment of the spoon-type vegetable planter requires manual adjustment one by one, which is cumbersome and results in low row spacing consistency.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a seeder with adjustable row spacing, comprising a main body component including a frame, a front pressure roller and a rear pressure roller rotatably mounted on the frame, a seed box fixed on the frame, and a plurality of furrow openers arranged below the frame, the furrow openers being connected to the seed box via a conveying pipe;

[0007] An adjustment component, mounted on the frame, includes a support member. The support member includes a lifting column slidably mounted within the frame. A fixed block is fixed to the bottom of the lifting column. Two sliding rods are fixed to the fixed block. A movable block is slidably mounted outside the sliding rods. The trencher is movably connected to the movable block.

[0008] As a preferred embodiment of the adjustable row spacing seeder of this utility model, there are two lifting columns and two fixed blocks, and the number of moving blocks is consistent with the number of furrow openers and corresponds one-to-one.

[0009] As a preferred embodiment of the adjustable row spacing seeder of this utility model, the adjusting component further includes an adjusting member located on one side of the slide rod, a rotating shaft is connected to the fixed block by a bearing, an annular ring is fixed on one side of the moving block, the annular ring is sleeved on the outside of the rotating shaft, a spiral groove is opened on the rotating shaft, a slider is fixed inside the annular ring, and the slider slides in the spiral groove.

[0010] As a preferred embodiment of the adjustable row spacing seeder of this utility model, the spiral grooves are multiple, divided into two groups, and symmetrically arranged on the rotating shaft.

[0011] As a preferred embodiment of the adjustable row spacing seeder of this utility model, the center of the rotating shaft is provided with a straight groove, and the slider is slidably disposed in the straight groove.

[0012] As a preferred embodiment of the adjustable row spacing seeder of this utility model, one end of the rotating shaft extends through to the outside of the fixed block, and a handwheel is fixed to one end of the rotating shaft. A spiral groove is provided on the handwheel, and a bolt is threaded into the spiral groove.

[0013] In a preferred embodiment of the adjustable row spacing seeder of this utility model, a friction pad is fixed on the fixing block.

[0014] In a preferred embodiment of the adjustable row spacing seeder of this utility model, the moving block is provided with a clamping plate, the shape of the clamping plate corresponds to the moving block, and multiple nuts are fixed on the clamping plate, and the clamping plate and the furrow opener are fixed with bolts and nuts.

[0015] In a preferred embodiment of the adjustable row spacing seeder of this utility model, three nuts are fixed on one of the clamping plates, and the end face of the bolt can fit against the moving block.

[0016] As a preferred embodiment of the adjustable row spacing seeder of this utility model, the frame is fixed with a motor and a handle, and the conveying pipe is made of a relatively soft material.

[0017] The beneficial effects of this utility model are as follows: the furrow opener is fixed to the moving block by bolts, and multiple moving blocks can move synchronously, and adjacent moving blocks always maintain the same distance. The user only needs to rotate the handle to drive all furrow openers to disperse or gather at the same distance, ensuring that the adjacent row spacing is consistent after adjustment, shortening the row spacing adjustment time, while retaining the fine adjustment function of a single furrow opener, which is convenient to fine adjust the position of a single furrow opener according to actual planting needs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a structural diagram of a seeder with adjustable row spacing.

[0020] Figure 2 This is a diagram of the rotating shaft structure of a seeder with adjustable row spacing.

[0021] Figure 3 This is a diagram of the ring structure of a seeder with adjustable row spacing.

[0022] Figure 4 This is a cross-sectional view of the annular structure of a seeder with adjustable row spacing.

[0023] Figure 5 This is a structural diagram of the fixed block of a seeder with adjustable row spacing.

[0024] Figure 6 This is another structural view of the rotating shaft of a seeder with adjustable row spacing.

[0025] In the diagram: 1. Main component; 11. Frame; 12. Front pressure roller; 13. Rear pressure roller; 14. Seed box; 141. Cover plate; 15. Furrow opener; 16. Conveying pipe; 2. Adjustment component; 21. Support component; 211. Lifting column; 212. Fixing block; 11-1. Adjusting bolt; 213. Slide rod; 214. Moving block; 22. Adjusting component; 221. Rotating shaft; 222. Annular ring; 221-1. Spiral groove; 223. Slider; 221-2. Straight groove opening; 224. Handwheel; 225. Bolt; 226. Friction pad; 227. Clamping plate; 228. Nut; 17. Motor; 18. Handle. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1, referring to Figures 1-3 This is the first embodiment of the present invention, which provides a seeder with adjustable row spacing. The seeder includes a main body component 1, including a frame 11. A front pressure roller 12 and a rear pressure roller 13 are rotatably mounted on the frame 11. A seed box 14 is fixed on the frame 11. Multiple furrow openers 15 are arranged below the frame 11. The furrow openers 15 are connected to the seed box 14 through a conveying pipe 16. The seed box 14 is located between the front pressure roller 12 and the rear pressure roller 13. One end of the conveying pipe 16 is fixed to the seed box 14, and the other end is inserted into the furrow opener 15. 5. A connecting cover plate 141 is connected to the seed box 14 by a hinge. Before sowing, the cover plate 141 can be lifted to put the seeds into the seed box 14. Then the cover plate 141 is closed. When the seeder moves, the seeds in the seed box 14 are put into the furrow opener 15 through the conveying pipe 16 under the action of gravity and with the cooperation of the internal rotating seed picking mechanism. Then the seeds fall into the pre-opened furrow of the furrow opener 15. This is the prior art. This solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0030] Adjustment component 2, which is mounted on frame 11, includes support member 21. The support member 21 is used to support trencher 15 so that it can be stably connected to frame 11.

[0031] The support component 21 includes a lifting column 211 that is slidably disposed within the frame 11. The frame 11 is welded together from multiple square tubes. A fixing block 212 is fixed to the bottom of the lifting column 211. A threaded groove is provided on the lifting column 211, and an adjusting bolt 11-1 is threadedly connected to the groove. The adjusting bolt 11-1 is connected to the bearing of the frame 11. By rotating the adjusting bolt 11-1, the lifting column 211 can be driven to rise and fall within the frame 11, thereby adjusting the trenching depth. This is existing technology, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.

[0032] Two sliding rods 213 are fixed on the fixed block 212. A moving block 214 is slidably arranged outside the sliding rods 213. The furrow opener 15 is movably connected to the moving block 214. By setting the two sliding rods 213, it is ensured that the moving block 214 can only slide radially along the sliding rods 213 and will not rotate relative to them. When the moving block 214 moves, it can drive the furrow opener 15 to move synchronously, thereby realizing the row spacing adjustment.

[0033] Example 2, refer to Figures 2-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, there are two lifting columns 211 and two fixed blocks 212. The number of moving blocks 214 is the same as the number of trenchers 15 and they correspond one-to-one. When the relative positions of the moving blocks 214 and the trenchers 15 are completely locked, the movement of the moving blocks 214 can drive the trenchers 15 to move synchronously, which facilitates the overall row spacing adjustment and ensures the consistency of row spacing. At the same time, the trenchers 15 can also slide relative to the moving blocks 214, which facilitates the adjustment of the position of a single trencher 15.

[0035] Specifically, the adjustment component 2 also includes an adjustment member 22 located on one side of the slide bar 213. The adjustment member 22 is set to drive multiple moving blocks 214 to move synchronously, while ensuring that the distance between two adjacent moving blocks 214 is always the same, so as to drive all the trenchers 15 to disperse or gather at equal distances.

[0036] A rotating shaft 221 is connected to a bearing on a fixed block 212. An annular ring 222 is fixed on one side of a movable block 214. The annular ring 222 can only move horizontally under the action of the movable block 214. The annular ring 222 is sleeved on the outside of the rotating shaft 221. A spiral groove 221-1 is opened on the rotating shaft 221. A slider 223 is fixed inside the annular ring 222. The slider 223 slides in the spiral groove 221-1. When the rotating shaft 221 rotates, the slider 223 slides along the spiral groove 221-1, thereby driving the annular ring 222 to move radially along the rotating shaft 221, which in turn drives the movable block 214 to move. The trencher 15 moves synchronously, thereby realizing the adjustment of the row spacing.

[0037] Specifically, there are multiple spiral grooves 221-1, divided into two groups, symmetrically arranged on the rotating shaft 221. The spiral groove 221-1 closest to the center of the rotating shaft 221 has the smallest pitch, while the spiral groove 221-1 closest to both ends of the rotating shaft 221 has the largest pitch. The pitch lengths are in an arithmetic sequence, which means that when the rotating shaft 221 is rotated, the annular ring 222 near the middle of the rotating shaft 221 moves a smaller distance, while the annular ring 222 at the end of the rotating shaft 221 moves a longer distance, thereby ensuring that all the trenchers 15 can be dispersed or gathered at equal distances.

[0038] Specifically, a straight groove 221-2 is provided at the center of the rotating shaft 221, and a slider 223 is slidably disposed in the straight groove 221-2. The total number of straight grooves 221-2 and spiral grooves 221-1 corresponds to the number of trenchers 15. The position of the trencher 15 located at the center does not change. When the rotating shaft 221 rotates, its corresponding slider 223 will slide in the straight groove 221-2, and the sliders 223 corresponding to the trenchers 15 on both sides will slide in the spiral grooves 221-1, so that the trenchers 15 on both sides move synchronously.

[0039] Specifically, one end of the rotating shaft 221 extends to the outside of the fixed block 212, and a handwheel 224 is fixed to one end of the rotating shaft 221. The handwheel 224 has a spiral groove, and a bolt 225 is threaded into the spiral groove. The handwheel 224 is designed to drive the rotating shaft 221 to rotate. Through the cooperation of the spiral groove and the bolt 225, the angle between the handwheel 224 and the fixed block 212 can be locked to ensure that the rotating shaft 221 will not rotate.

[0040] After adjusting the row spacing, connect bolt 225 to the spiral groove thread and tighten bolt 225 to compress and increase static friction, thereby preventing the shaft 221 from rotating again.

[0041] Example 3, referring to Figures 1-6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0042] Specifically, a friction pad 226 is fixed on the fixing block 212. After tightening the bolt 225 on the handwheel 224, the end face of the bolt 225 can fit tightly with the friction pad 226, thereby increasing the friction between the bolt 225 and the fixing block 212 and ensuring that the rotating shaft 221 will not rotate.

[0043] Specifically, a clamping plate 227 is provided on the movable block 214. The clamping plate 227 is shaped like a √ and its shape corresponds to that of the movable block 214. The length of the movable block 214 is wider than that of the clamping plate 227. Multiple nuts 228 are fixed on the clamping plate 227. The clamping plate 227 and the trencher 15 are fixed with bolts 225 and nuts 228. The cooperation of bolts 225 and nuts 228 is used to connect the clamping plate 227 and the trencher 15. When the clamping plate 227 slides relative to the movable block 214, it can drive the trencher 15 to move synchronously, thereby adjusting the position of a single trencher 15.

[0044] Specifically, three nuts 228 are fixed on a clamping plate 227, and the end face of the bolt 225 can fit against the moving block 214. When the bolt 225 located in the nut 228 is tightened, the relative position of the clamping plate 227 and the moving block 214 can be locked and form a whole. In the initial state, the clamping plate 227 is located in the middle position of the moving block 214.

[0045] When it is necessary to adjust the relative position of a certain trencher 15, rotate the corresponding bolt 225 in the opposite direction so that the end face of the bolt 225 is away from the moving block 214. At this time, the clamping plate 227 can slide relative to the moving block 214, thereby adjusting the position of a single trencher 15 within a small range. After the position adjustment is completed, tighten the bolt 225 again.

[0046] Specifically, a motor 17 and a handle 18 are fixed on the frame 11. The conveying pipe 16 is made of a relatively soft material. When the row spacing is the smallest, the conveying pipe 16 has a large degree of bending. As a result, when the row spacing is expanded, the degree of bending of the conveying pipe 16 becomes smaller, which can meet the expanded row spacing and ensure that the other end of the conveying pipe 16 can always be inserted into the trencher 15.

[0047] When in use, ensure that the bolt 225 inside the nut 228 is tightened so that the end face of the bolt 225 can fit against the moving block 214. Tighten the bolt 225 inside the nut 228. When the bolt 225 fits tightly against the moving block 214, the relative position of the clamping plate 227 and the moving block 214 will be locked, forming a whole. In the initial state, the clamping plate 227 is located in the middle position of the moving block 214.

[0048] When all row spacing needs to be adjusted, loosen the bolt 225 on the handwheel 224, then rotate the handwheel 224 to drive the rotating shaft 221 to rotate. The slider 223 slides along the spiral groove 221-1, thereby driving the annular ring 222 to move radially along the rotating shaft 221, which in turn drives the moving block 214 to move. The position of the center trencher 15 will not change. When the rotating shaft 221 rotates, its corresponding slider 223 will slide in the straight groove 221-2. The sliders 223 corresponding to the trenchers 15 on both sides slide in the spiral groove 221-1, so that the trenchers 15 on both sides move synchronously. The distance between two adjacent moving blocks 214 is always the same, driving all trenchers 15 to disperse or converge at equal distances. After the adjustment is completed, tighten the bolt 225 on the handwheel 224 again. The end face of the bolt 225 can fit tightly with the friction pad 226 to ensure that the rotating shaft 221 will not rotate, thereby locking the position of all trenchers 15.

[0049] When only the relative position of a single furrow opener 15 needs to be adjusted, the corresponding bolt 225 is rotated in the opposite direction so that the end face of the bolt 225 is away from the moving block 214. At this time, the clamping plate 227 can slide relative to the moving block 214, thereby adjusting the position of a single furrow opener 15 within a small range. After the position adjustment is completed, the bolt 225 is tightened again. In this way, the position of a single furrow opener 15 can be finely adjusted according to the actual planting needs.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A seeder with adjustable row spacing, characterized in that: include, The main component (1) includes a frame (11), on which a front pressure roller (12) and a rear pressure roller (13) are rotatably mounted. A seed box (14) is fixed on the frame (11). Multiple furrow openers (15) are arranged below the frame (11). The furrow openers (15) are connected to the seed box (14) through a conveying pipe (16). Adjustment component (2), set on the frame (11), includes support member (21), the support member (21) includes lifting column (211) slidably set in the frame (11), the bottom of the lifting column (211) is fixed with a fixing block (212), the fixing block (212) is fixed with two sliding rods (213), the sliding rods (213) are slidably set with a moving block (214), the trencher (15) is movably connected to the moving block (214).

2. The seeder with adjustable row spacing as described in claim 1, characterized in that: There are two of the lifting column (211) and the fixed block (212), and the number of the moving block (214) is the same as the number of the trencher (15) and they correspond one-to-one.

3. The seeder with adjustable row spacing as described in claim 1 or 2, characterized in that: The adjustment assembly (2) also includes an adjustment component (22) located on one side of the slide bar (213). A rotating shaft (221) is connected to the fixed block (212) by a bearing. An annular ring (222) is fixed on one side of the moving block (214). The annular ring (222) is sleeved on the outside of the rotating shaft (221). A spiral groove (221-1) is opened on the rotating shaft (221). A slider (223) is fixed inside the annular ring (222). The slider (223) slides in the spiral groove (221-1).

4. The seeder with adjustable row spacing as described in claim 3, characterized in that: There are multiple spiral grooves (221-1), which are divided into two groups and symmetrically arranged on the rotating shaft (221).

5. The seeder with adjustable row spacing as described in claim 4, characterized in that: The rotating shaft (221) has a straight groove (221-2) at its center, and the slider (223) is slidably disposed in the straight groove (221-2).

6. The seeder with adjustable row spacing as described in claim 4 or 5, characterized in that: One end of the rotating shaft (221) extends through to the outside of the fixed block (212), and a handwheel (224) is fixed to one end of the rotating shaft (221). A spiral groove is provided on the handwheel (224), and a bolt (225) is threaded into the spiral groove.

7. The seeder with adjustable row spacing as described in claim 6, characterized in that: A friction pad (226) is fixed on the fixing block (212).

8. The seeder with adjustable row spacing as described in claim 7, characterized in that: The movable block (214) is provided with a clamping plate (227), the shape of the clamping plate (227) corresponds to the movable block (214), and a plurality of nuts (228) are fixed on the clamping plate (227). The clamping plate (227) and the trencher (15) are fixed by the bolt (225) and the nuts (228).

9. The seeder with adjustable row spacing as described in claim 8, characterized in that: Three nuts (228) are fixed on one of the clamping plates (227), and the end face of the bolt (225) can be fitted with the movable block (214).

10. The seeder with adjustable row spacing as described in claim 8 or 9, characterized in that: The frame (11) is fixed with a motor (17) and a handle (18), and the conveying pipe (16) is made of a relatively soft material.

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