Automatic seed seedling raising device

By suspending seeds with high-pressure airflow and spraying them into a fumigation-like nutrient medium, combined with intelligent detection and automatic controller regulation, the problems of uneven distribution of nutrient medium and liquid retention in seed seedling devices are solved, achieving uniform seed coverage and efficient germination, thus meeting the needs of rapid and efficient seedling cultivation.

CN223758725UActive Publication Date: 2026-01-06SHANGHAI JIAOTONG UNIV +1
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Patent Information

Application Number
CN202520079186.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-06
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing seed seedling devices suffer from uneven distribution of nutrient media, liquid retention leading to decreased germination rate and mold growth, and low germination efficiency, making it difficult to meet the demand for rapid and efficient seedling cultivation.

Method used

High-pressure airflow is used to suspend seeds and spray them into a smoke-like nutrient medium. Combined with intelligent detection and automatic controller to regulate environmental conditions, the system ensures uniform nutrient coverage and avoids liquid stagnation, achieving uniform and efficient nutrient distribution. Temperature sensors and automatic controllers are used for environmental regulation.

Benefits of technology

It achieves uniform seed nutrient coverage, improves germination efficiency, shortens germination time, meets the needs of rapid and efficient agriculture, and ensures healthy seed growth through environmental control.

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Abstract

The utility model discloses an automatic seed seedling raising device which comprises a seedling raising container, an aerosolization unit, a high-pressure air source and an automatic controller. The seedling raising container comprises a container wall and a seedling raising space defined by the container wall, and the container wall is provided with a plurality of feeding ports and air inlets; the aerosolization unit comprises a plurality of raw material aerosolizers and raw material atomizers, and each raw material aerosolizer and each raw material atomizer are respectively communicated with at least one feeding hole; the high-pressure gas source is communicated with the gas inlet and feeds high-pressure gas into the seedling culture space; and the automatic controller is connected with the atomization unit and the high-pressure air source. According to the seed seedling raising device provided by the utility model, seeds can be suspended through high-pressure airflow, smog-state nutrient media are sprayed to uniformly cover the suspended seeds in multiple directions, and the high-pressure airflow, the nutrient media, environmental conditions and the like are regulated and controlled by utilizing an intelligent detector and an automatic controller; and the problems of germination rate reduction and mildew caused by non-uniform medium distribution or liquid retention in the traditional method are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of seed germination and germination promotion technology, and in particular to an automatic seed seedling raising device. Background Technology

[0002] In rice production, two main cultivation methods are direct seeding and seedling transplanting. Among these, seedling transplanting has become the mainstream technology due to its significant advantages in improving rice yield and quality. To fully realize the potential of this technology and improve the success rate of seedling cultivation and the overall quality of seedlings, the key lies in mastering the two core stages of germination and germination promotion. The efficiency of germination and germination promotion directly affects the growth vitality of seedlings and their subsequent yield performance, making it a crucial and indispensable step in the seedling cultivation process. Under the same rice variety conditions, optimizing germination and germination promotion techniques to cultivate robust and healthy seedlings has become the primary goal for achieving high-yield and high-quality rice production.

[0003] Invention CN117898067A discloses a seed germination and breeding device for Polygonatum sibiricum, including an immersion tank. Two support columns are fixedly connected to the top of the immersion tank, and a sliding rod is fixedly connected between the two support columns. Each of the two support columns has a rotating hole on one side, and a lead screw is rotatably connected inside the two rotating holes. This seed germination and breeding device and method for Polygonatum sibiricum effectively improves the germination rate by pre-treating the seeds with the breeding device and performing three temperature-change treatments. The operation is simple. However, the seed treatment method of this invention still falls under the category of traditional soaking methods. Soaking methods easily lead to uneven seed treatment, resulting in significant differences in the distribution of water and nutrients adsorbed on the seed surface, affecting the overall germination effect. Furthermore, prolonged temperature-change treatment is inefficient and difficult to adapt to the needs of rapid germination.

[0004] Invention CN112567926B discloses a high germination rate breeding device for rice, comprising a U-shaped frame and one or more seedling trays. The U-shaped frame has grooves on both sides of its interior. A push plate is located at the end of the U-shaped frame away from the opening, with pull strips installed at both ends of the push plate. One or more seedling trays are placed inside the U-shaped frame, each tray protruding outwards from the groove to form a sliding strip, which is slidably installed within the groove. Each sliding strip has a longitudinally penetrating through-hole, and the through-holes are interconnected. One or more water pipes are horizontally installed inside each seedling tray, with one or more liquid outlet holes on the bottom surface of each water pipe. Water inlets are located on the inner wall of each seedling tray. In this invention, nutrient distribution is mainly achieved through the liquid outlet holes of the water pipes, making it difficult to evenly cover all seeds. The nutrient absorption efficiency of suspended seeds is greatly affected by water distribution, making it impossible to ensure that each seed receives uniform nutrient support, resulting in low overall germination efficiency.

[0005] Therefore, how to provide a seed seedling device that enables seeds to fully contact the nutrient medium during the seedling process, achieves uniform and efficient treatment, avoids the problems of decreased germination rate and mold caused by uneven medium distribution or liquid retention in traditional methods, and has intelligent environmental control capabilities is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] To address the shortcomings of the existing technology, this utility model provides an automatic seed seedling raising device. The device suspends seeds using a high-pressure airflow, sprays a smoky nutrient medium to evenly cover the suspended seeds in multiple directions, and uses intelligent detection and automatic controllers to regulate the high-pressure airflow, nutrient medium, and environmental conditions. This avoids the problems of decreased germination rate and mold growth caused by uneven medium distribution or liquid retention in traditional methods.

[0007] The present invention provides an automatic seed and seedling raising device, comprising: a seedling container, a smoke atomizing unit, a high-pressure air source, and an automatic controller;

[0008] A seedling container, including a container wall and a seedling space enclosed by the container wall, with several feed inlets and air inlets on the container wall;

[0009] The atomizing unit includes several raw material atomizers and raw material atomizers, each of which is connected to at least one of the feed inlets.

[0010] A high-pressure gas source is connected to the air inlet to deliver high-pressure gas into the seedling space;

[0011] Automatic controller, connected to atomizing unit and high-pressure air source.

[0012] Furthermore, the top of the seedling container is provided with a seed inlet for adding or removing seeds, seedlings, etc.

[0013] Existing seedling raising and germination devices mostly use nutrient solution soaking for seeds. However, this method is prone to drawbacks such as uneven seed nutrition, low germination efficiency, liquid retention, and resource waste, making it difficult to meet the demand for rapid and efficient germination. Specifically, the soaking method cannot ensure that the nutrient solution evenly covers each seed, resulting in inconsistent germination effects. Furthermore, it requires a long time for the nutrient solution to penetrate into the seed, prolonging the germination cycle. At the same time, residual liquid on the seed surface after soaking can easily breed mold or cause spoilage, which is detrimental to subsequent sowing. This invention, however, uses a high-pressure air source to introduce high-pressure airflow into the seedling raising space, keeping the seeds in a suspended state. The mist mixture can evenly cover the seed surface from multiple directions, significantly improving the uniformity and efficiency of processing, avoiding liquid retention problems, and reducing the risk of mold growth.

[0014] Furthermore, the automatic seed and seedling raising device also includes several temperature sensors installed in the seedling raising space, and the temperature sensors are connected to the automatic controller via signals.

[0015] Furthermore, the automatic seed and seedling raising device also includes a heating unit for regulating the temperature of the seedling raising space, and the heating unit is connected to the automatic controller.

[0016] Furthermore, the automatic seed and seedling raising device also includes several pH sensors installed in the seedling raising space, and the pH sensors are connected to the automatic controller via signal connection.

[0017] Furthermore, the raw material atomizer is selected from at least one of a water atomizer, an acid atomizer, an alkaline atomizer, and an accelerator atomizer.

[0018] Furthermore, the raw material atomizer atomizes solid raw materials and is independently connected to at least one feed inlet.

[0019] Furthermore, the automatic seed and seedling raising device also includes a base, a seedling container set on the base, and a smoke atomizing unit, a high-pressure air source, and an automatic controller housed in the base.

[0020] Furthermore, the seedling container and the base can be an integrated structure or separate structures.

[0021] Furthermore, the seedling container and / or base may be cylindrical, cubic, spherical, or a combination thereof.

[0022] Furthermore, the number of air inlets is 1-30, and the number of feed inlets is 2-50.

[0023] Preferably, the number of air inlets is selected based on the volume of the seeds and the seedling container, sufficient to suspend the seeds by air. For example, taking a rectangular seedling container, the air inlets meet the following conditions:

[0024] When the number of air inlets is less than 5, the bottom air inlets are evenly distributed in the base area;

[0025] When the number of air inlets is between 5 and 10, at least one air inlet with adjustable direction is provided on at least one side wall, and the remaining air inlets are evenly distributed at the bottom.

[0026] When the number of air inlets is greater than 10, at least one air inlet with adjustable direction is provided on each side wall, and the remaining air inlets are evenly distributed at the bottom of the seedling space. In addition, according to the seed suspension requirements, multiple air inlets can also be provided on some side walls, for example, at least two air inlets at different heights are provided on each side wall, and the remaining air inlets are evenly distributed at the bottom of the seedling space.

[0027] Preferably, the air inlets are arranged in a ring shape at the bottom. For example, one or more air inlets are set at the center of the bottom to enhance the airflow intensity in the central area. At least one ring-shaped layout is formed in the outer area of ​​the center of the bottom to push the seeds upward from the bottom, prevent the seeds from gathering in all directions, and avoid the seeds from accumulating due to excessively concentrated airflow.

[0028] The adjustable air inlet located on the side wall guides airflow into the seedling space, preventing seeds from accumulating on the side wall or bottom edge.

[0029] This design utilizes the dynamic effect of airflow to encourage seeds to flow back from the edge area to the center or suspended area of ​​the seedling space, ensuring that the seeds are evenly distributed throughout the seedling space and further improving the uniformity of the treatment effect and the germination efficiency.

[0030] Furthermore, for higher cultivation spaces, airflow inlets can be arranged at different heights, and by adjusting the direction and intensity of airflow in each layer, the uniform distribution of seeds in the vertical direction can be ensured.

[0031] This utility model has at least the following beneficial effects:

[0032] (1) The automatic seed raising device provided by this utility model suspends at least some seeds by high-pressure airflow and combines the mist mixture generated by the atomization unit to achieve all-round uniform coverage of nutrients on the seeds, which significantly improves the germination efficiency and processing uniformity, ensures seed health, shortens germination time, and meets the needs of fast and efficient agriculture.

[0033] (2) This utility model achieves precise environmental control within the seedling space through temperature sensors, pH sensors, and heating units, ensuring that seeds are under optimal germination conditions. At the same time, the number of air inlets, the type of atomizer, and the equipment structure can be flexibly configured according to different types of seeds, adapting to various seedling scenarios, and is easy to operate, making it suitable for large-scale agricultural production applications.

[0034] (3) This utility model achieves a highly efficient synergistic effect between airflow and mist mixture by scientifically distributing air inlets and feed inlets within the seedling space. Furthermore, the adjustable spray direction of the air inlets and feed inlets allows for dynamic control of airflow intensity and direction, as well as the distribution area of ​​nutrients, ensuring that the mist mixture evenly covers the seed surface from multiple angles, maximizing the contact area and nutrient absorption efficiency, improving the uniformity and efficiency of germination, and avoiding the problem of germination rate differences. Attached Figure Description

[0035] Figure 1 This is a structural diagram of the automatic seed and seedling raising device of this utility model.

[0036] Explanation of reference numerals in the attached diagram: 1-seedling container, 100-seed inlet, 11-temperature sensor, 12-pH sensor, 21-raw material smoke generator, 22-raw material atomizer, 231-first feed inlet, 232-second feed inlet, 233-third feed inlet, 3-high pressure air source, 31-air inlet, 4-heating unit, 5-automatic controller, 6-base. Detailed Implementation

[0037] To better understand the above technical solutions, a detailed description of the solutions will be provided below in conjunction with the specification and specific implementation methods. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The singular forms “a,” “the,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0039] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0040] The following will be combined with the appendix Figure 1 The present invention provides an automatic seed and seedling raising device.

[0041] The automatic seed and seedling raising device of this utility model specifically includes:

[0042] (1) Seedling container 1 and base 6, seedling container 1 is set on base 6, seedling container 1 includes seed inlet 100 set on top of container, container wall and seedling space 1 enclosed by container wall, the container wall is provided with feed inlet and air inlet 31 connecting seedling space 1 and outside, the number of air inlets is 1-30, the number of feed inlets is 2-50;

[0043] The seedling space is equipped with a temperature sensor 11 and a pH sensor 12 for real-time monitoring of the temperature and pH value inside the seedling space. It is preferable to set the temperature sensor 11 and pH sensor 12 at multiple locations to ensure the accuracy of real-time monitoring within the seedling space.

[0044] The base 6 houses the atomizing unit, the high-pressure air source 3, and the automatic controller 5;

[0045] The seedling container 1 and the base 6 are either an integral structure or separate structures, but preferably they have the same cross-sectional shape, which facilitates easy assembly and stable use. The seedling container 1 and the base can be cylindrical, cubic, cuboid, spherical or a combination thereof, with cubic, cuboid or cylindrical shapes being particularly preferred.

[0046] (2) Atomizing unit, including raw material atomizer 21 and raw material atomizer 22, each raw material atomizer 21 and raw material atomizer 22 being connected to at least one of the feed ports;

[0047] The raw material atomizer 21 atomizes solid raw materials and is independently connected to at least one feed inlet;

[0048] The raw material atomizer 22 is selected from at least one of a water atomizer, an acid atomizer, an alkaline atomizer, and an accelerator atomizer.

[0049] The feed inlets include: a first feed inlet 231 for controlled injection of mist water, a second feed inlet 232 for controlled injection of mist weak acid, and a third feed inlet 232 for controlled injection of fumes of metal hydride. The total number of feed inlets can be 2-50. When there are only 2 feed inlets, the first feed inlet 231 and the second feed inlet 232 can be combined into one feed inlet for discharge. However, the third feed inlet 232 needs to be connected to a separate feed inlet. Otherwise, it is easy to react prematurely with water or acid and block the feed inlet.

[0050] The specific number of the first feed inlet 231, the second feed inlet 232, and the third feed inlet 232 can be set according to actual needs. For example, the ratio of the number of the first feed inlet 231, the second feed inlet 232, and the third feed inlet 232 is (1-20):(1-15):(1-15). Preferably, there are multiple first feed inlets 231, second feed inlets 232, and third feed inlets 232, which are evenly distributed around the seedling space 1. In addition, in order to make full use of the metal hydride, at least one first feed inlet 231 and / or at least one second feed inlet 232 are provided in the horizontal plane where the third feed inlet 232 is provided. Since the metal hydride can react with both acid and water, as long as there is one first feed inlet 231 or one second feed inlet 232, it can be ensured that the metal hydride fumes sprayed from the first feed inlet 231 can react in time.

[0051] (3) High-pressure gas source 3 is connected to the air inlet 31 to send high-pressure gas into the seedling space; there are 1-30 air inlets 31, and they are connected to the automatic controller 5 to independently supply high-pressure airflow with the same / different pressure to each air inlet 31.

[0052] The high-pressure generators for solid powder metal hydrides, mist weak acids, and mist water are all independent, with each generator receiving its own input parameters such as quantity, time, and frequency, all controlled by an automatic controller.

[0053] (4) Heating unit 4 is connected to automatic controller 5 and works with temperature sensor to ensure that seedling container is at a suitable temperature;

[0054] (5) Automatic controller 5, connected to atomization unit and high-pressure air source 3; Automatic controller 5 accurately controls and dynamically adjusts the temperature, pH, airflow and atomization status of the seedling space according to the seed type and real-time data collected by the sensor.

[0055] Example

[0056] See appendix Figure 1 The automatic seed and seedling raising device of this embodiment includes:

[0057] (1) Seedling container 1, vertical rectangular configuration (large vertical height), including seed inlet 100 set at the top of the container, container wall and seedling space enclosed by the container wall, the container wall is provided with 16 feed inlets (14 of which are used feed inlets and 2 are spare feed inlets) and 15 air inlets 31 (14 of which are used air inlets and 1 is spare air inlet 31) that connect the seedling space and the outside, and the feed inlets can provide high pressure gas of various pressures;

[0058] Within the seedling space, three temperature sensors 11 and three pH sensors 12 are installed at three different heights (upper, middle, and lower) to monitor the internal temperature and pH value of the seedling space in real time.

[0059] (2) Atomization unit, including two raw material atomizers 21, each connected to two third feed ports 233, for atomizing metal hydrides; and 12 raw material atomizers 22, of which 6 are used to atomize weak acid liquid and are connected to 6 second feed ports 232 respectively, and the other 6 are used to atomize water and are connected to 6 first feed ports 231 respectively; in addition, 2 spare feed ports can be connected to alkaline liquid atomizers or accelerator atomizers as needed;

[0060] Two third inlets 233 are respectively set at different heights relative to the container wall of the cuboid container. At each height, each of the other three side walls is provided with a first inlet 231 to provide atomized water and a second inlet to provide atomized weak acid liquid, for timely and sufficient reaction of the metal hydride provided by the third inlet 233 at the same height.

[0061] (3) High-pressure air source 3 is connected to the 15 air inlets 31 and is signal-connected to the automatic controller 5, independently supplying high-pressure airflow with the same / different pressure to each air inlet 31.

[0062] Each side wall of the cuboid container is provided with an adjustable air inlet 31 (4 in total), and the remaining air inlets 31 (10 in total) are evenly distributed at the bottom of the seedling space. For example, one air inlet 31 is set at the midpoint, three air inlets 31 are evenly arranged in the first ring, and six air inlets 31 are evenly arranged in the second ring. The spare air inlets 31 can be set on the top wall and activated from time to time to adjust the suspension position of some seeds or to prevent seeds from being blown out.

[0063] The high-pressure generators for solid powder metal hydrides, mist weak acids, and mist water are all independent, with each generator receiving its own input parameters such as quantity, time, and frequency, all controlled by an automatic controller 5.

[0064] (4) Heating unit 4 is set in base 6 and connected to automatic controller 5; the heating unit 4 can heat the temperature in seedling container 1 to 65°C or higher, and can be adjusted and selected according to the needs of seed cultivation.

[0065] (5) Automatic controller 5, connected to atomization unit and high-pressure air source 3; Automatic controller 5 precisely controls and dynamically adjusts the temperature, pH, airflow and atomization status of the seedling space according to the seed type and real-time data collected by the sensor.

[0066] (6) Base 6, horizontal rectangular configuration (small vertical height), seedling container 1 is set on base 6, atomization unit, high pressure gas source 3, heating unit 4 and automatic controller 5 are housed in base 6; seedling container 1 and base 6 are an integral structure.

[0067] The working principle of this automatic seed and seedling raising device is as follows:

[0068] First, a certain amount of sterilized seeds are placed into the seedling container 1 through the seed inlet 100. The amount of seeds to be placed is selected according to the container size, seed type and weight. High-pressure gas is blown into the air inlet 31 of the seedling container 1 so that the sterilized seeds can be fully suspended in the seedling container 1.

[0069] Secondly, the first inlet 231 of the seedling container 1 is periodically sprayed with atomized gaseous water, the third inlet 232 is periodically sprayed with atomized (solid) magnesium hydride, and the second inlet 232 is periodically sprayed with atomized gaseous weak acid solution. The weak acid solution can be pre-prepared using organic weak acids such as humic acid, acetic acid, and citric acid, or inorganic weak acids such as carbonic acid, metasilicic acid, and boric acid. The magnesium hydride reacts with water and the weak acid solution to release hydrogen gas, ensuring that the seeds in the seedling container 1 are fully immersed in the mixture of atomized and atomized nutrients.

[0070] During seedling cultivation, the pH and temperature inside seedling container 1 are monitored in real time.

[0071] After the seedlings are grown, the seedlings can be taken out from the upper seed inlet 100 (when the seedling container 1 and the base 6 are an integral structure), or the connecting part between the seedling container 1 and the base 6 can be opened to take out the seedlings from the bottom (when the seedling container 1 and the base are separate structures).

[0072] The automatic seed and seedling raising device of this invention has a simple structure, is easy to control, and has a wide range of applicable seeds, making it valuable for promotion and application.

[0073] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the present invention is intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope.

Claims

1. An automatic seed and seedling raising device, characterized in that, The application relates to a seedling raising device, which comprises a seedling raising container, a smoke atomization unit, a high-pressure gas source and an automatic controller. The seedling raising container comprises a container wall and a seedling raising space surrounded by the container wall, and a plurality of feeding ports and air inlets are arranged on the container wall. The smoke atomization unit comprises a plurality of raw material smoke atomizers and raw material atomizers, and each raw material smoke atomizer and raw material atomizer is connected with at least one feeding port. The high-pressure gas source is connected with the air inlets and sends high-pressure gas into the seedling raising space. The automatic controller is connected with the smoke atomization unit and the high-pressure gas source. A plurality of temperature sensors are arranged in the seedling raising space, and the temperature sensors are connected with the automatic controller.

2. The automatic seedling raising apparatus according to claim 1, wherein A heating unit for regulating the temperature of the seedling raising space is arranged, and the heating unit is connected with the automatic controller.

3. The automated seedling raising apparatus according to claim 2, wherein A plurality of pH value sensors are arranged in the seedling raising space, and the pH value sensors are connected with the automatic controller.

4. The automatic seedling raising apparatus according to claim 1, wherein The raw material atomizer is selected from at least one of a water atomizer, an acid liquid atomizer, an alkali liquid atomizer and a promoter atomizer.

5. The automatic seedling raising apparatus according to any one of claims 1 to 4, wherein The raw material smoke atomizer atomizes solid raw materials and is independently connected with at least one feeding port.

6. The automated seedling raising apparatus according to any one of claims 1 to 4, wherein A base is arranged, the seedling raising container is arranged on the base, and the smoke atomization unit, the high-pressure gas source and the automatic controller are arranged in the base.

7. The automated seedling raising apparatus according to any one of claims 1 to 4, wherein The seedling raising container and the base are integrated or are separated.

8. The automated seedling raising apparatus according to claim 7, wherein The seedling raising container and / or the base are in the shapes of a cylinder, a square, a cube, a sphere or a combination thereof.

9. The automated seedling raising apparatus according to claim 7, wherein The air inlets are 1-30, and the feeding ports are 2-50.

10. The automatic seedling raising apparatus according to claim 8 or 9, wherein ​

Citation Information

Patent Citations

  • A high germination rate breeding device for rice breeding

    CN112567926B

  • Polygonatum sibiricum seed germination accelerating and breeding device and seedling raising method

    CN117898067A