Precise seeding device for wheat test field

By using heating wires and temperature sensors to control the temperature of the constant temperature chamber in the precision seeding device for wheat experimental fields, combined with the design of slide rails and limit frames, the problem of seed adhesion was solved, achieving precise seeding and efficient germination conditions for wheat seeds, and improving seeding efficiency and the reliability of experimental data.

CN224218883UActive Publication Date: 2026-05-12ZHANGYE ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGYE ACAD OF AGRI SCI
Filing Date
2025-05-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing precision seeding devices for wheat experimental fields are prone to seed sticking and poor flowability in humid environments, affecting seeding accuracy and seedling quality, reducing operational efficiency and the reliability of experimental data.

Method used

Heating wires are used to heat the liquid in the constant temperature chamber, and temperature sensors monitor and control the temperature in real time between 40-50 degrees Celsius. Combined with an insulation layer, heat loss is reduced, ensuring that the seeds are at a suitable humidity level. Through the cooperation of slide rails, sliders, and limit frames, the sowing holes and discharge pipes are precisely aligned to prevent clogging and missed sowing.

Benefits of technology

It improves seed germination potential and sowing efficiency, ensures the precision and consistency of sowing, and meets the stringent requirements of scientific research experiments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a precision seeding device for a wheat test field, which belongs to the technical field of wheat seeding and comprises a seeding machine body, a plurality of universal wheels are fixedly connected to the bottom of the seeding machine body, a seeding box is fixedly connected to the upper surface of the seeding machine body, and a constant temperature component is mounted in the seeding box. Liquid in a constant-temperature chamber is heated through a heating wire, the temperature is monitored in real time through a temperature sensor, the temperature is regulated and controlled to range from 40 DEG C to 50 DEG C, it is ensured that seeds are located at the appropriate humidity level, the blocking problem caused by humidity is prevented, heat loss is reduced through a heat preservation layer, and the seed sowing efficiency is improved. According to the wheat seed sowing device, seeds in a sowing box are indirectly preheated, the germination potential and the sowing efficiency of the seeds are improved, through mutual cooperation of a connecting rod, a sliding rail, a sliding block, a limiting frame and a limiting groove, sowing holes in a movable plate are driven to be matched with a discharging pipe, and it is ensured that wheat seeds fall into a sowing ditch below.
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Description

Technical Field

[0001] This utility model relates to the field of wheat sowing technology, and more specifically, to a precision sowing device for wheat experimental fields. Background Technology

[0002] The precision seeding device for wheat experimental fields is an agricultural machinery device specifically designed for wheat planting research. It can accurately sow seeds into the soil according to preset sowing density and depth, which is of great significance for improving seed utilization, ensuring uniform crop growth, and facilitating subsequent field management.

[0003] When using existing precision seeding devices for wheat experimental fields, the user usually pushes a push rod to move the seeding vehicle. During the movement of the seeding vehicle, wheat seeds enter the discharge pipe through the seeding box and fall into the pre-drilled seeding furrow through the discharge pipe. Then, the seeds are covered with soil and the soil is lightly pressed with a roller to ensure good contact between the seeds and the soil.

[0004] In practical applications, existing technologies often result in wheat seeds sticking together and having poor flowability due to high moisture content or being in a humid environment. This affects sowing precision and seedling quality, reduces operational efficiency, and compromises the reliability of experimental data. Therefore, a precision sowing device for wheat experimental fields is proposed. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a precision seeding device for wheat experimental fields. It heats the liquid in the constant temperature chamber through heating wires and monitors and controls the temperature in real time between 40-50 degrees Celsius through temperature sensors to ensure that the seeds are at a suitable humidity level and prevent clogging caused by moisture. The heat insulation layer reduces heat loss.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A precision seeding device for wheat experimental fields includes a seeder body, with multiple casters fixedly connected to the bottom of the seeder body, a seeding box fixedly connected to the upper surface of the seeder body, a temperature control component installed inside the seeding box, and a seeding assembly installed at the bottom of the seeder body; the temperature control component has a temperature control chamber installed inside, with multiple heating wires arranged in a ring array inside the temperature control chamber, and a temperature sensor fixedly connected inside the temperature control chamber; the seeding assembly includes a support frame fixedly connected to the bottom of the seeder body, a movable plate installed inside the support frame, and a seeding hole opened inside the movable plate; a discharge pipe is connected to the bottom of the inner cavity of the seeding box, and the discharge pipe and the seeding hole have the same diameter.

[0010] Furthermore, a support rod is fixedly connected to the upper surface of the seeder body, and a control panel is fixedly connected to the side of the support rod. A display screen and control buttons are installed on the outer surface of the control panel, and a push rod is fixedly connected to the side of the seeder body, which facilitates real-time monitoring of the device's working status and pushes the seeder to move and operate.

[0011] Furthermore, the constant temperature component includes an insulation layer fixedly connected to the outer surface of the constant temperature chamber, thereby reducing heat loss from the constant temperature chamber, maintaining a constant temperature environment, and improving heating efficiency and energy saving effect.

[0012] Furthermore, the seeding assembly includes multiple slide rails fixedly installed inside the support frame. A slider is slidably connected inside the slide rail, and the outer surface of the slider is connected to the outer surface of the moving plate to support and limit the moving plate, ensuring that it moves accurately and smoothly during the seeding process.

[0013] Furthermore, a limiting frame is fixedly connected to the side of the seeder body, and a limiting groove is opened inside the limiting frame. A connecting rod is fixedly connected to the side of the moving plate, and a circular plate is fixedly connected to one end of the connecting rod. The connecting rod is slidably connected to the inside of the support frame. The limiting groove cooperates with the connecting rod to limit the travel range of the moving plate and ensure that the discharge pipe matches the seeding hole.

[0014] Furthermore, a spring is fixedly connected between the slider and the slide rail, an injection pipe is fixedly connected to the upper surface of the seeding box, and a storage box is fixedly connected to the upper surface of the seeder body. A cover plate is installed on the outer surface of the storage box and the injection pipe. The moving plate is automatically reset by the spring. The injection pipe is used for adding seeds, and the storage box can be used to store spare seeds or accessories.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution heats the liquid in the constant temperature chamber by heating wire and monitors and controls the temperature in real time between 40-50 degrees Celsius by temperature sensor to ensure that the seeds are at a suitable humidity level and prevent blockage caused by moisture. The heat loss is reduced by the heat insulation layer, and the temperature in the constant temperature chamber is kept stable, thereby indirectly preheating the seeds in the seeding box and improving the germination potential and sowing efficiency of the seeds.

[0018] (2) Through the cooperation of connecting rod, slide rail, slider, limit frame and limit groove, the sowing hole in the moving plate is matched with the discharge pipe to ensure that the wheat seeds fall into the sowing furrow below. Then the connecting rod is released so that it is reset by spring to block the seed falling channel and avoid the occurrence of missed sowing or over-sowing. This achieves precise seed placement and improves the operation flexibility and practicality of the device, meeting the strict requirements for sowing consistency and controllability in scientific research experiments. Attached Figure Description

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

[0020] Figure 2 This is a side view of the overall structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0023] Explanation of the labels in the diagram:

[0024] 1. Seeder body; 101. Casters; 102. Seeding box; 103. Storage box; 104. Push rod; 105. Support rod; 106. Control panel; 2. Temperature control assembly; 201. Temperature control chamber; 202. Heating wire; 203. Temperature sensor; 204. Insulation layer; 3. Seeding assembly; 301. Discharge pipe; 302. Moving plate; 303. Seeding hole; 304. Support frame; 305. Slide rail; 306. Slider; 307. Connecting rod; 308. Spring; 309. Limiting frame; 310. Limiting groove. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] Please see Figures 1-4 A precision seeding device for wheat experimental fields includes a seeder body 1. Multiple casters 101 are fixedly connected to the bottom of the seeder body 1. A seeding box 102 is fixedly connected to the upper surface of the seeder body 1. A temperature control component 2 is installed inside the seeding box 102. A temperature control chamber 201 is installed inside the temperature control component 2. Multiple heating wires 202 are arranged in a ring array inside the temperature control chamber 201. A temperature sensor 203 is fixedly connected inside the temperature control chamber 201. The temperature control component 2 includes an insulation layer 204 fixedly connected to the outer surface of the temperature control chamber 201. A support rod 105 is fixedly connected to the upper surface of the seeder body 1. A control panel 106 is fixedly connected to the side of the support rod 105. A display screen and control buttons are installed on the outer surface of the control panel 106. A push rod 104 is fixedly connected to the side of the seeder body 1. The temperature control chamber 201 is filled with liquid so that the heating wires 202 can heat the liquid inside the temperature control chamber 201.

[0030] Specifically, a seeding assembly 3 is installed at the bottom of the seeder body 1. The seeding assembly 3 includes a support frame 304 fixedly connected to the bottom of the seeder body 1. A movable plate 302 is installed inside the support frame 304. A seeding hole 303 is opened inside the movable plate 302. A discharge pipe 301 is connected to the bottom of the inner cavity of the seeding box 102. The discharge pipe 301 and the seeding hole 303 have the same diameter. The seeding assembly 3 includes multiple slide rails 305 fixedly installed inside the support frame 304. A slider 306 is slidably connected inside the slide rails 305. The outer surface of the slider 306 is flush with the movable plate 302. The outer surfaces are connected. A limiting frame 309 is fixedly connected to the side of the seeder body 1. A limiting groove 310 is opened inside the limiting frame 309. A connecting rod 307 is fixedly connected to the side of the moving plate 302. A circular plate is fixedly connected to one end of the connecting rod 307. The connecting rod 307 is slidably connected to the inside of the support frame 304. A spring 308 is fixedly connected between the slider 306 and the slide rail 305. An injection pipe is fixedly connected to the upper surface of the seed box 102. A storage box 103 is fixedly connected to the upper surface of the seeder body 1. A cover plate is installed on the outer surface of the storage box 103 and the injection pipe.

[0031] Furthermore, the heating wire 202 is activated to heat the liquid inside the constant temperature chamber 201, raising its temperature to between 40-50 degrees Celsius. When the temperature exceeds a preset threshold, the control panel 106 automatically shuts off the heating wire 202, thus providing appropriate preheating for the seeds in the seeding box 102. The moving circular plate drives the connecting rod 307 to move, which in turn drives the moving plate 302. The moving plate 302 then drives the slider 306 to move along the slide rail 305. The spring 308 is compressed, and when the moving plate 302 moves, it causes the sowing hole 303 to match the discharge pipe 301, so that the wheat seeds fall into the sowing furrow below through the discharge pipe 301 and the sowing hole 303, completing one precise sowing operation. Then the round plate is immediately released, and the moving plate 302 is reset by the spring 308, and the sowing hole 303 and the discharge pipe 301 are misaligned. This operation is repeated, so that while the seeder body 1 is pushed forward, continuous and precise sowing operation is achieved, thereby realizing precise control of wheat seed sowing.

[0032] Working principle: In use, first open the cover of the storage box 103 and the injection pipe, pour the wheat seeds into the seeding box 102 through the injection pipe, and then activate the power supply and controller of the temperature sensor 203 and the heating wire 202 through the control panel 106. The temperature sensor 203 detects the temperature in the constant temperature chamber 201 in real time, and at the same time, the heating wire 202 is activated to heat the liquid in the constant temperature chamber 201 to a temperature between 40-50 degrees Celsius. When the temperature exceeds the preset threshold, the control panel 106 will automatically turn off the heating wire 202. At the same time, the temperature in the constant temperature chamber 201 will be transferred to the seeding box 102, thereby preheating the seeds in the seeding box 102 appropriately, improving their fluidity and germination conditions. The heat insulation layer 204 can reduce heat loss and maintain the temperature stability of the constant temperature chamber 201, indirectly preheating the seeds in the seeding box 102 and improving germination conditions.

[0033] Subsequently, the staff member grasped the push rod 104 and used the caster wheels 101 to move the seeder body 1 to the designated position in the experimental field. When sowing was required, the staff member held the circular plate and moved the connecting rod 307 by moving the circular plate. When the connecting rod 307 moved, it moved the moving plate 302. When the moving plate 302 moved, it moved the slider 306 along the slide rail 305. The slider 306 compressed the spring 308. Furthermore, when the moving plate 302 moved, it caused the sowing hole 303 to align with the discharge pipe 301, allowing the wheat seeds to fall into the sowing furrow below through the discharge pipe 301 and the sowing hole 303, completing one precision sowing operation. When the connecting rod 307 contacts the side wall of the limiting groove 310, it indicates that the discharge pipe 301 and the sowing hole 303 are fully aligned. Then, the circular plate is immediately released, and the moving plate 302 is driven to reset by the spring 308. The sowing hole 303 and the discharge pipe 301 are misaligned, blocking the seed falling channel and preventing missed or over-sowing. This operation is repeated to achieve continuous and precise sowing while pushing the seeder body 1 forward. This enables precise control of wheat seed sowing and meets the requirements of scientific research experiments for sowing accuracy and controllability. At the same time, the operator can monitor the temperature in real time through the control panel 106 to improve the practicality and flexibility of the device.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A precision seeding device for wheat experimental fields, comprising a seeder body (1), wherein a plurality of casters (101) are fixedly connected to the bottom of the seeder body (1), characterized in that: The upper surface of the seeder body (1) is fixedly connected to a seed box (102), the inside of the seed box (102) is equipped with a constant temperature component (2), and the bottom of the seeder body (1) is equipped with a seeding component (3). The constant temperature component (2) has a constant temperature chamber (201) installed inside. The constant temperature chamber (201) has a ring array of multiple heating wires (202) inside. A temperature sensor (203) is fixedly connected inside the constant temperature chamber (201). The sowing assembly (3) includes a support frame (304) fixedly connected to the bottom of the seeder body (1). A movable plate (302) is installed inside the support frame (304). A sowing hole (303) is opened inside the movable plate (302). A discharge pipe (301) is connected to the bottom of the inner cavity of the sowing box (102). The discharge pipe (301) and the sowing hole (303) have the same diameter.

2. The precision seeding device for wheat experimental fields according to claim 1, characterized in that: A support rod (105) is fixedly connected to the upper surface of the seeder body (1), and a control panel (106) is fixedly connected to the side of the support rod (105). A display screen and control buttons are installed on the outer surface of the control panel (106), and a push rod (104) is fixedly connected to the side of the seeder body (1).

3. The precision seeding device for wheat experimental fields according to claim 1, characterized in that: The constant temperature component (2) includes a heat insulation layer (204) fixedly connected to the outer surface of the constant temperature chamber (201).

4. The precision seeding device for wheat experimental fields according to claim 1, characterized in that: The seeding assembly (3) includes multiple slide rails (305) fixedly installed inside the support frame (304). A slider (306) is slidably connected inside the slide rail (305), and the outer surface of the slider (306) is connected to the outer surface of the moving plate (302).

5. The precision seeding device for wheat experimental fields according to claim 1, characterized in that: A limiting frame (309) is fixedly connected to the side of the seeder body (1). A limiting groove (310) is opened inside the limiting frame (309). A connecting rod (307) is fixedly connected to the side of the moving plate (302). A circular plate is fixedly connected to one end of the connecting rod (307). The connecting rod (307) is slidably connected to the inside of the support frame (304).

6. The precision seeding device for wheat experimental fields according to claim 4, characterized in that: A spring (308) is fixedly connected between the slider (306) and the slide rail (305). An injection pipe is fixedly connected to the upper surface of the seed box (102). A storage box (103) is fixedly connected to the upper surface of the seeder body (1). A cover plate is installed on the outer surface of the storage box (103) and the injection pipe.