A seeder with adjustable seeding spacing

CN224638489UActive Publication Date: 2026-08-18SOUTHWEST UNIVERSITY FOR NATIONALITIES
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Patent Information

Application Number
CN202522070800.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-08-18
Estimated Expiration
2035-09-26

AI Technical Summary

Technical Problem

[0004]目前,现有的播种机存在开孔位置随机、种肥分离、操作繁琐的问题,结构有待优化,需要提高播种效率

Benefits of technology

[0017]经由上述的技术方案可知,与现有技术相比,本实用新型公开提供了一种播种间距可调的播种机,通过设置料斗用于放置水凝胶、种子和肥料;通过设置搅拌机构对料斗内的水凝胶、种子和肥料进行搅拌,混合均匀;通过设置破土杆和压力传感器,直接感知车轮滚动中的地面阻力变化,当车轮受压最大时,机械触发破土杆伸长,出料口进行下插动作,区别于电子传感的复杂控制,通过纯机械结构实现动作与阻力的实时绑定,降低故障率和成本;

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Abstract

The utility model discloses a kind of seeding spacing adjustable seeders. It relates to seeding technical field, and it includes: frame, one end is equipped with handle, the other end of frame is equipped with wheel;Hopper, hopper is set on frame, hopper is located above wheel, stirring mechanism is equipped in hopper;Soil-breaking rod, soil-breaking rod is set as telescopic rod, soil-breaking rod is fixed in the bottom of hopper downward, telescopic end of soil-breaking rod is equipped with soil-breaking bit, soil-breaking bit is equipped with discharge port, discharge passage is equipped in soil-breaking rod, one end of discharge passage is communicated with the inside of hopper, the other end of discharge passage is communicated with discharge port, one end of discharge passage close to hopper is equipped with limit switch;Truss, truss is set on frame, sleeve is set in both ends of truss, both ends of wheel are worn in sleeve, both ends of wheel are equipped with pressure sensor correspondingly. The utility model discloses a kind of seeding spacing adjustable seeders, by setting pressure sensor cooperation limit switch, control discharging, realize that seeding spacing is adjustable.
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Description

Technical Field

[0001] This utility model relates to the field of sowing technology, and more specifically to a sowing machine with adjustable sowing spacing. Background Technology

[0002] A seeder is a planting machine that sows crop seeds. Seeders used for a certain type or type of crop are often named after the crop type, such as grain strip seeder, corn hill seeder, cotton seeder, and pasture broadcaster.

[0003] In high-altitude grassland environments, grassland restoration requires planting crops such as alfalfa, highland barley, and oats. Since these crops have different planting spacing requirements, the spacing needs to be adjusted. Adjustable seeding machines utilize various mechanical designs to flexibly adjust row and plant spacing to meet the planting needs of different crops.

[0004] Currently, existing seeders suffer from problems such as random hole placement, seed-fertilizer separation, and cumbersome operation. Their structure needs to be optimized to improve seeding efficiency.

[0005] Therefore, how to provide a seeder with adjustable sowing spacing that can complete positioning, hole making and sowing in a single action to achieve efficient and precise sowing is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a seeder with adjustable sowing spacing, which can complete positioning, hole making and sowing in a single action, achieving efficient and precise sowing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A seeder with adjustable seeding spacing, comprising:

[0009] A frame, one end of which is provided with a handle and the other end of which is provided with wheels;

[0010] A hopper is mounted on a frame and located above the wheels. A stirring mechanism is installed inside the hopper.

[0011] The soil-breaking rod is a telescopic rod, fixed downwards to the bottom of the hopper. The telescopic end of the soil-breaking rod is equipped with a soil-breaking cutter head, and the soil-breaking cutter head is equipped with a discharge port. The soil-breaking rod is equipped with a discharge channel. One end of the discharge channel is connected to the interior of the hopper, and the other end of the discharge channel is connected to the discharge port. A limit switch is provided at the end of the discharge channel near the hopper.

[0012] A truss is mounted on the frame and located below the hopper. Sleeves are provided at both ends of the truss, and both ends of the wheels pass through the sleeves. Pressure sensors are provided at both ends of the wheels.

[0013] Furthermore, one end of the truss is provided with a support rod, and the other end of the truss is provided with a rake.

[0014] Furthermore, it also includes a soil-covering mechanism, which includes a scraper and a return spring. The scraper is mounted on a support rod, and the return spring connects the scraper and the support rod. Soil covering is achieved through the cooperation of the spring and the scraper.

[0015] Furthermore, the stirring mechanism is configured as an electric stirring element or a manual stirring element.

[0016] Furthermore, the soil-breaking rod is extended and retracted by a motor, and the motor is connected to the pressure sensor and the limit switch.

[0017] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a seeder with adjustable sowing spacing. It is equipped with a hopper for placing hydrogel, seeds and fertilizer; a stirring mechanism is set up to stir the hydrogel, seeds and fertilizer in the hopper to mix them evenly; and a soil-breaking rod and pressure sensor are set up to directly sense the change in ground resistance during the rolling of the wheel. When the wheel is under the maximum pressure, the mechanical trigger extends the soil-breaking rod and the discharge port performs a downward insertion action. Unlike the complex control of electronic sensing, the action and resistance are bound in real time through a pure mechanical structure, reducing the failure rate and cost.

[0018] Combined with a pressure sensor, the seed sowing spacing can be precisely controlled. When the wheel rolls, the pressure sensor detects the change in ground resistance and transmits a signal. The control system then controls the movement of the seeder or the sowing action according to the preset plant spacing requirements, ensuring that the distance between adjacent seeds meets the set value, so that the seedling spacing is reasonable and the seedlings are uniform.

[0019] This seeder solves three major pain points of traditional seeding: random hole placement, seed-fertilizer separation, and cumbersome operation. It enables positioning, hole making, and seed covering to be completed in a single action, achieving efficient and precise seeding. Attached Figure Description

[0020] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a seeder with adjustable sowing spacing provided by this utility model;

[0022] Figure 2 A schematic diagram of the soil covering mechanism provided by this utility model.

[0023] Wherein: 1 is the frame; 2 is the handle; 3 is the wheel; 4 is the hopper; 5 is the mixing mechanism; 6 is the soil-breaking rod; 7 is the soil-breaking cutter head; 8 is the truss; 9 is the pressure sensor; 10 is the support rod; 11 is the rake; 12 is the sleeve; 13 is the soil-covering mechanism. Detailed Implementation

[0024] 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.

[0025] See Figure 1-2 This utility model discloses a seeder with adjustable sowing spacing, comprising:

[0026] The frame 1 has a handle 2 at one end and a wheel 3 at the other end.

[0027] Hopper 4 is mounted on the frame 1 and is located above the wheel 3. A stirring mechanism 5 is installed inside the hopper 4. The hopper 4 is used to hold hydrogel, seeds and fertilizer. The stirring mechanism 5 is used to stir the hydrogel, seeds and fertilizer in the hopper 4 to mix them evenly.

[0028] The soil-breaking rod 6 is a telescopic rod, fixed downwards to the bottom of the hopper 4. The telescopic end of the soil-breaking rod 6 is equipped with a soil-breaking cutter head 7, which has a discharge port. The soil-breaking rod 6 has a discharge channel inside, one end of which is connected to the inside of the hopper 4, and the other end of which is connected to the discharge port. A limit switch is provided at the end of the discharge channel near the hopper 4. By setting the limit switch, the discharge channel is opened or closed to control the sowing process.

[0029] A truss 8 is mounted on the frame 1 and located below the hopper 4. Sleeves 12 are installed at both ends of the truss 8, and both ends of the wheels 3 are inserted into the sleeves 12. Pressure sensors 9 are correspondingly installed at both ends of the wheels 3. The position of the pressure sensors 9 on the wheels 3 is adjustable. The pressure sensors 9 contact the ground to transmit pressure signals. The pressure sensors 9 work in conjunction with limit switches. As the wheels 3 roll, the spacing is confirmed. When the pressure sensor 9 receives the maximum pressure signal, the breaking rod 6 extends, causing the breaking blade 7 to extend, and the discharge port inserts into the soil, releasing the mixture of seeds, hydrogel, and fertilizer. After release, the discharge port retracts, the limit switch closes, and sowing is complete. By adjusting the installation position of the pressure sensors 9, the activation timing of the limit switch can be controlled, thereby adjusting the sowing spacing according to the distance the wheels roll.

[0030] In this embodiment, one end of the truss 8 is provided with a support rod 10, and the other end of the truss 8 is provided with a rake 11; the rake 11 can make the land flat and soft, which is convenient for planting; the rake 11 has both soil breaking and guiding functions, ensuring that the discharge port enters the soil vertically.

[0031] In this embodiment, a soil covering mechanism 13 is also included. The soil covering mechanism 13 includes a scraper and a return spring. The scraper is mounted on the support rod 10, and the return spring connects the scraper and the support rod 10. Soil covering is achieved by the spring cooperating with the scraper, thus realizing soil breaking, variable spacing sowing, and soil covering operations.

[0032] In this embodiment, the stirring mechanism 5 is configured as either an electric or manual stirring element. Driven by hand or a motor, it has a stirring function, capable of uniformly mixing seeds, sand, water-retaining materials, fertilizers, etc. When the battery is depleted, manual stirring can still be used to ensure smooth operation in the field.

[0033] In this embodiment, the excavating rod 6 is extended and retracted by a motor, and the motor is connected to the pressure sensor 9 and the limit switch signal.

[0034] A signal processing module is installed on the truss 8 and connected to the pressure sensor signal 9. The signal processing module receives changes in ground resistance from the pressure sensor 9. The signal processing module is also electrically connected to the limit switch and the motor. After receiving the changes from the pressure sensor 9, the signal processing module controls the closing of the limit switch and the extension and retraction of the motor breaking rod 6.

[0035] In addition, in this embodiment, the pressure sensor 9 is replaced with an infrared sensor, which is installed on the truss 8. A blocking block is installed on the outer wheel of the wheel 3. The blocking block works in conjunction with the infrared sensor to realize the switch sensing. Then, the microprocessor receives the signal and sends it to the limit switch on the discharge channel to execute the discharge control. Every time the wheel 3 rotates once, the blocking block will pass the infrared sensor and trigger the switch of the soil breaking rod 6. By adjusting the circumferential position of the blocking block on the truss 8, the arc length of the wheel 3 rolling between the first trigger and the next trigger can be changed to control the seeding distance.

[0036] The telescopic function of the soil-breaking pole 6 is also set to manual extension drive, so that it can be used in the field without electricity when there is no power, in conjunction with the manual mixing component of the mixing mechanism 5.

[0037] The soil breaking cutter head 7 and the discharge port are set to tilt downwards.

[0038] The discharge port on the soil-breaking cutter head 7 and the discharge channel inside the soil-breaking rod 6 are detachable. Different specifications can be changed according to the size of different seeds. With the help of limit switches, seeds can pass through one lane at a time, and the required number of seeds can be controlled according to the size of the seeds.

[0039] Specific usage process

[0040] First, the seeds, sand, water-retaining materials, fertilizer, etc. are mixed evenly by the mixing mechanism 5;

[0041] Then, by manually pushing the wheel 3, the pressure sensor 9 comes into contact with the ground while the wheel 3 is moving. When the pressure sensor 9 receives the maximum pressure signal, it transmits the signal to the signal processing module. After receiving the change in the pressure sensor 9, the signal processing module controls the motor to drive the extrusion head 7 of the extrusion rod 6 to extend. The discharge port can move downward and insert into the soil. The signal processing module controls the limit switch to open the discharge channel and release the mixture of seeds, hydrogel and fertilizer.

[0042] Finally, after the release is complete, the signal processing module controls the motor to drive the soil-breaking rod 6 to retract, the discharge port retracts, and the signal processing module controls the limit switch to close, completing the sowing.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A seeding machine with adjustable seeding spacing, characterized by, include: A frame, one end of which is provided with a handle and the other end of which is provided with wheels; A hopper is mounted on a frame and located above the wheels. A stirring mechanism is installed inside the hopper. The soil-breaking rod is a telescopic rod, fixed downwards to the bottom of the hopper. The telescopic end of the soil-breaking rod is equipped with a soil-breaking cutter head, and the soil-breaking cutter head is equipped with a discharge port. The soil-breaking rod is equipped with a discharge channel. One end of the discharge channel is connected to the interior of the hopper, and the other end of the discharge channel is connected to the discharge port. A limit switch is provided at the end of the discharge channel near the hopper. A truss is mounted on the frame and located below the hopper. Sleeves are provided at both ends of the truss, and both ends of the wheels pass through the sleeves. Pressure sensors are provided at both ends of the wheels.

2. The seeding spacing adjustable planter according to claim 1, characterized in that, One end of the truss is provided with a support rod, and the other end of the truss is provided with a rake.

3. The seeding spacing adjustable planter according to claim 2, wherein, It also includes a soil covering mechanism, which includes a scraper and a return spring. The scraper is mounted on a support rod, and the return spring connects the scraper and the support rod. Soil covering is achieved by the spring cooperating with the scraper.

4. The seeding spacing adjustable planter according to claim 1, wherein, The stirring mechanism is configured as an electric stirring element or a manual stirring element.

5. The seeding spacing adjustable planter according to claim 1, wherein, The soil-breaking rod is extended and retracted by a motor, and the motor is connected to the pressure sensor and the limit switch.