Seed quantity and depth control equipment of wheat seeder

By adjusting the volume of the interval blocks using hydraulic cylinders and a turntable, the problem of uncontrollable seed falling speed in traditional wheat planters has been solved, enabling precise and continuous sowing and improving sowing efficiency.

CN224250210UActive Publication Date: 2026-05-19HUAINAN HONGJIA AQUACULTURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAINAN HONGJIA AQUACULTURE CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional wheat planters cannot control the seed drop speed, resulting in uneven sowing and uncontrolled density.

Method used

A seed quantity and depth control device for a wheat seeder was designed. The depth of the furrow opener is controlled by a hydraulic cylinder, and the volume of the interval block is adjusted by a turntable and screw to achieve precise control of the seed quantity and falling speed. A guide block is used to form a precise flow channel.

Benefits of technology

It has achieved precision and continuity in wheat sowing, improved emergence rate and unit yield, and avoided instability and bottlenecks in sowing quantity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of seeding, and discloses a seed quantity and depth control device of a wheat seeding machine, which comprises a cart, and a seeding component is arranged at the top of the cart. According to the seed quantity and depth control equipment of the wheat seeding machine, by arranging the seeding assembly and changing the effective volume between two sets of spacing blocks, the control over the wheat seeding quantity and the spacing falling speed is achieved, the equipment adapts to different seeding requirements or field parcels with different soil fertility, precise seeding is achieved, the emergence rate and the unit yield are improved, and by arranging a screw rod, the self-locking performance is achieved; by arranging the guide blocks, the seeds can fall into the gaps between the spacing blocks, an accurate flow guide channel is formed through the guide blocks, and the accuracy of the seeds can be improved, so that the accuracy of the seeds can be improved, and the accuracy of the seeds can be improved. The seeds are guided to only fall into the target interval groove.
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Description

Technical Field

[0001] This utility model relates to the field of sowing technology, specifically to a wheat sowing machine seed quantity and depth control device. Background Technology

[0002] Traditional wheat planters are large machines, making them inconvenient to use in small fields. They are used to open furrows, and then the wheat is sown into the furrows. After the wheat seeds are sown, the soil needs to be filled in manually.

[0003] According to a public announcement of a precision wheat seed planter (Announcement No.: CN220359703U), the above application includes a frame plate, a first hydraulic device and a seeding hopper. The lower end face of the frame plate is equipped with symmetrically distributed second support legs. The ends of the second support legs are equipped with mounting plates. A rotating shaft is rotatably mounted between the mounting plates. A drive wheel is mounted on the rotating shaft. The seeding hopper is embedded in the frame plate.

[0004] However, in actual use, the above-mentioned seeders cannot control the falling speed of the seeds. If the seeds fall freely or randomly, it will lead to uneven sowing and loss of density control. In view of this, we propose a seed quantity and depth control device for wheat seeders. Utility Model Content

[0005] The purpose of this invention is to provide a wheat planter seed quantity and depth control device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wheat seeder seed quantity and depth control device, comprising a trolley, wherein a seeding assembly is provided on the top of the trolley, and the seeding assembly includes:

[0007] A hydraulic cylinder, the output end of which is fixedly connected to a mounting bracket, the bottom of which is fixedly connected to a trencher, and the bottom of which is fixedly connected to a backfill plate;

[0008] A seeding hopper, wherein a turntable is rotatably connected to the side wall of the seeding hopper, a rotating cylinder is fixedly connected to the side wall of the turntable, and a spacer block is fixedly connected to the side of the turntable near the inside of the seeding hopper.

[0009] A rotating block has a connecting rod hinged to its side wall, a push plate hinged to the end of the connecting rod away from the rotating block, a rotating rod inserted into the side wall of the rotating block, an insert block inserted into the end face of the rotating rod, and a screw fixedly connected to the end face of the insert block.

[0010] Preferably, the hydraulic cylinder is fixedly connected to the top end face of the trolley, the furrow opener and the soil filling plate are located on both sides of the seeding hopper, and a vertical rod is fixedly connected to the top end face of the trolley, the vertical rod being sleeved with the mounting frame.

[0011] Preferably, the seeding hopper is fixedly connected to the top end face of the trolley, a storage box is fixedly connected to the top end face of the seeding hopper, a motor is fixedly connected to the end face of the rotating drum, the motor is fixedly connected to the frame, and the frame is fixedly connected to the side wall of the trolley.

[0012] Preferably, the rotating block is rotatably connected to the turntable, and the push plate is movably connected to the inner wall of the spacer block.

[0013] Preferably, a threaded sleeve is fixedly connected to the inner wall of the rotating drum. The threaded sleeve is threadedly connected to the screw. Rotating the screw drives the insert block and the rotating block to rotate, which in turn drives the connecting rod to move, causing the push plate to rise or fall, thereby adjusting the amount of seeds that can be stored between the two sets of spacers, and realizing the control of wheat sowing amount.

[0014] Preferably, an observation window is fixedly connected to the side wall of the turntable. The observation window is movably connected to the push plate. The position of the push plate can be observed through the observation window, thereby determining the number of seeds that can be stored between the spacers.

[0015] Preferably, the inner wall of the seeding hopper is fixedly connected with guide blocks, and the number of guide blocks is set to two sets, the gap between the two sets of guide blocks being consistent with the gap between the two sets of spacers.

[0016] Compared with the prior art, this utility model provides a wheat seeder with a seed quantity and depth control device, which has the following beneficial effects:

[0017] 1. This wheat seeder's seed quantity and depth control equipment, through the set seeding components, changes the effective volume between two sets of interval blocks to control the wheat seed quantity and the interval falling speed, adapting to different seeding needs or fields with different soil fertility, achieving precise seeding, improving seedling emergence rate and unit yield. The set screw has self-locking properties to prevent misadjustment or slippage. After the height of the push plate is adjusted, it will not slip due to vibration or seed weight, ensuring the stability of the seed quantity and avoiding loss of accuracy after adjustment.

[0018] 2. The seed quantity and depth control device of this wheat seeder, through the setting of guide blocks, allows the seeds to fall into the gap between two sets of spacers, without getting stuck in the gap between the seeding hopper and the spacers. The guide blocks form a precise flow channel, guiding the seeds to fall only into the target spacers, preventing seeds from getting stuck and ensuring continuous sowing. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the seeding component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the trencher structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the screw structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the sowing hopper structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the turntable structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the seeding hopper of this utility model.

[0026] In the diagram: 1. Trolley; 2. Seeding assembly; 201. Hydraulic cylinder; 202. Mounting frame; 203. Furrow opener; 204. Soil filling plate; 205. Seeding hopper; 206. Motor; 207. Rotating drum; 208. Turntable; 209. Spacer block; 210. Rotating block; 211. Connecting rod; 212. Push plate; 213. Rotating rod; 214. Insert block; 215. Screw; 216. Threaded sleeve; 3. Vertical rod; 4. Frame; 5. Guide block; 6. Observation window; 7. Storage box. Detailed Implementation

[0027] like Figures 1-7 As shown, this utility model provides a technical solution: a wheat seeder seed quantity and depth control device, including a trolley 1, a seeding component 2 is provided on the top of the trolley 1, the seeding component 2 includes a hydraulic cylinder 201, a mounting frame 202, a furrow opener 203, a soil filling plate 204, a seeding hopper 205, a motor 206, a rotating drum 207, a turntable 208, a spacer block 209, a rotating block 210, a connecting rod 211, a push plate 212, a rotating rod 213, an insert block 214, a screw 215, and a threaded sleeve 216.

[0028] In one embodiment of this utility model, a hydraulic cylinder 201 is fixedly connected to the top end face of the trolley 1, and a mounting frame 202 is fixedly connected to the output end of the hydraulic cylinder 201. A furrow opener 203 is fixedly connected to the bottom of the mounting frame 202, and a soil filling plate 204 is fixedly connected to the bottom of the mounting frame 202. The furrow opener 203 and the soil filling plate 204 are located on both sides of the seeding hopper 205. A vertical rod 3 is fixedly connected to the top end face of the trolley 1, and the vertical rod 3 is sleeved with the mounting frame 202.

[0029] The seeding hopper 205 is fixedly connected to the top end face of the trolley 1. A turntable 208 is rotatably connected to the side wall of the seeding hopper 205. A rotating drum 207 is fixedly connected to the side wall of the turntable 208. A spacer block 209 is fixedly connected to the side of the turntable 208 near the inside of the seeding hopper 205. A storage box 7 is fixedly connected to the top end face of the seeding hopper 205. A motor 206 is fixedly connected to the end face of the rotating drum 207. The motor 206 is fixedly connected to the frame 4. The frame 4 is fixedly connected to the side wall of the trolley 1.

[0030] Rotating block 210 is rotatably connected to turntable 208. A connecting rod 211 is hinged to the side wall of rotating block 210. A push plate 212 is hinged to the end of connecting rod 211 away from rotating block 210. Push plate 212 is movably connected to the inner wall of spacer block 209. Rotating rod 213 is inserted into the side wall of rotating block 210. Insert block 214 is inserted into the end face of rotating rod 213. Screw 215 is fixedly connected to the end face of insert block 214. Threaded sleeve 216 is fixedly connected to the inner wall of rotating cylinder 207. Threaded sleeve 216 is threadedly connected to screw 215. Rotating screw 215 drives insert block 214 and rotating block 210 to rotate, thereby driving connecting rod 211 to move, causing push plate 212 to rise or fall, thereby adjusting the amount of seeds that can be stored between the two sets of spacer blocks 209, and realizing the control of wheat sowing amount.

[0031] The side wall of the turntable 208 is fixedly connected to an observation window 6, which is movably connected to the push plate 212. The position of the push plate 212 can be observed through the observation window 6, thereby determining the seeds that can be stored between the spacers 209.

[0032] The hydraulic cylinder 201 controls the depth of the furrow opening device 203, which in turn controls the depth of wheat sowing. The trolley 1 is pushed, the furrow opening device 203 opens the furrow in front, and then the wheat seeds fall to the bottom of the furrow through the sowing hopper 205. Finally, the soil filling plate 204 pushes the soil to cover the wheat seeds.

[0033] Rotating the screw 215 drives the insert block 214 and the rotating block 210 to rotate, which in turn drives the connecting rod 211 to move, causing the push plate 212 to rise or fall, changing the effective volume between the two sets of spacers 209, and thus adjusting the amount of seeds that can be stored between the two sets of spacers 209. The motor 206 drives the rotating drum 207 and the turntable 208 to rotate, which in turn causes the spacers 209 to rotate, allowing wheat seeds to fall. This achieves control over the amount of wheat sown and the speed of the falling seeds, adapting to different sowing needs or fields with different soil fertility, achieving precise sowing, and improving the emergence rate and unit yield. The screw 215 has a self-locking property to prevent misadjustment or slippage. After the height of the push plate 212 is adjusted, it will not slip due to vibration or the weight of the seeds, ensuring the stability of the sowing amount and avoiding loss of accuracy after adjustment.

[0034] In addition, a guide block 5 is fixedly connected to the inner wall of the sowing hopper 205. There are two sets of guide blocks 5. The gap between the two sets of guide blocks 5 is consistent with the gap between the two sets of spacers 209. The guide block 5 allows the seeds to fall into the gap between the two sets of spacers 209 without getting stuck in the gap between the sowing hopper 205 and the spacers 209. The guide block 5 forms a precise flow channel, guiding the seeds to fall only into the target spacer slot, preventing the seeds from getting stuck, ensuring the continuity of sowing, and improving the uniformity and accuracy of sowing.

[0035] In this invention, during use, the hydraulic cylinder 201 is controlled to control the depth of the furrow opening device 203, thereby controlling the depth of wheat sowing. The pusher 1 is pushed forward, and the furrow opening device 203 opens the furrow in front. Then, wheat seeds fall to the bottom of the furrow through the sowing hopper 205. Finally, the soil filling plate 204 pushes the soil to cover the wheat seeds. The screw 215 is rotated, which drives the insert block 214 and the rotating block 210 to rotate, thereby driving the connecting rod 211 to move, causing the push plate 212 to rise or fall, changing the effective volume between the two sets of spacer blocks 209, thereby adjusting the amount of seeds that can be stored between the two sets of spacer blocks 209. The motor 206 drives the rotating drum 207 and the turntable 208 to rotate, thereby causing the spacer blocks 209 to rotate and the wheat seeds to fall. This realizes the control of the wheat sowing amount and the interval falling speed, adapting to different sowing needs or fields with different soil fertility, and achieving precise sowing.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A wheat seeder seed quantity and depth control device, comprising a trolley (1), characterized in that: The top of the trolley (1) is provided with a seeding assembly (2), which includes: A hydraulic cylinder (201) is fixedly connected to an installation frame (202) at its output end. A trencher (203) is fixedly connected to the bottom of the installation frame (202), and a backfill plate (204) is fixedly connected to the bottom of the installation frame (202). A seeding hopper (205) is provided, with a turntable (208) rotatably connected to the side wall of the seeding hopper (205), and a rotating cylinder (207) fixedly connected to the side wall of the turntable (208). A spacer block (209) is fixedly connected to the side of the turntable (208) near the inside of the seeding hopper (205). A rotating block (210) is provided, with a connecting rod (211) hinged to its side wall. A push plate (212) is hinged to the end of the connecting rod (211) away from the rotating block (210). A rotating rod (213) is inserted into the side wall of the rotating block (210). A plug (214) is inserted into the end face of the rotating rod (213). A screw (215) is fixedly connected to the end face of the plug (214).

2. The wheat seeder seed quantity and depth control device according to claim 1, characterized in that: The hydraulic cylinder (201) is fixedly connected to the top end face of the trolley (1). The furrow opener (203) and the soil filling plate (204) are located on both sides of the seeding hopper (205). A vertical rod (3) is fixedly connected to the top end face of the trolley (1). The vertical rod (3) is sleeved with the mounting frame (202).

3. The wheat seed quantity and depth control device according to claim 1, characterized in that: The seeding hopper (205) is fixedly connected to the top end face of the trolley (1). A storage box (7) is fixedly connected to the top end face of the seeding hopper (205). A motor (206) is fixedly connected to the end face of the rotating drum (207). The motor (206) is fixedly connected to the frame (4). The frame (4) is fixedly connected to the side wall of the trolley (1).

4. The wheat seeder seed quantity and depth control device according to claim 1, characterized in that: The rotating block (210) is rotatably connected to the turntable (208), and the push plate (212) is movably connected to the inner wall of the spacer block (209).

5. The wheat seed quantity and depth control device according to claim 1, characterized in that: The inner wall of the rotating drum (207) is fixedly connected with a threaded sleeve (216), and the threaded sleeve (216) is threadedly connected to the screw (215).

6. The wheat seed quantity and depth control device according to claim 1, characterized in that: The turntable (208) has an observation window (6) fixedly connected to its side wall, and the observation window (6) is movably connected to the push plate (212).

7. The wheat seed quantity and depth control device according to claim 1, characterized in that: The inner wall of the seeding hopper (205) is fixedly connected with a guide block (5). There are two sets of guide blocks (5), and the gap between the two sets of guide blocks (5) is consistent with the gap between the two sets of spacers (209).