Constant temperature germination device for soybean seeds

Abstract

This utility model relates to a constant-temperature germination device for soybean seeds, including a constant-temperature chamber and a frame installed inside the chamber. A water storage box is fixedly connected to the lower end of the frame, and a ventilated plate is provided on the inner side of the frame. A water-absorbing column is provided at the lower end of the ventilated plate, and a humidity-maintaining layer is provided at the upper end of the ventilated plate. A micro water pump is provided on one side of the surface of the water storage box. This utility model collects excess water through the water storage box, preventing the water from the upper layer from flowing downwards during spraying and avoiding water transfer when the seeds are stacked. Through the capillary water transport mechanism of the water-absorbing column, the water in the water storage box is evenly lifted to the humidity-maintaining layer by the capillary action of the water-absorbing column, ensuring that the gauze on the surface of the entire ventilated plate remains in a constant state of moisture, rather than relying on the upper layer spraying, thereby eliminating the humidity difference between the upper and lower layers. All seeds are in a uniformly moist environment, and the continuous water transfer from the water-absorbing column makes the humidity fluctuation smaller, ensuring the germination effect.

Description

Technical Field

[0001] This utility model relates to the field of bridge pier repair technology, specifically to a constant temperature germination device for soybean seeds. Background Technology

[0002] In modern agricultural production, the germination quality of seeds directly affects the emergence rate, growth vigor, and final yield of crops. As an important economic crop, high-quality seed germination is crucial for achieving high and stable yields in soybeans. Traditional seed germination methods rely heavily on natural environmental conditions such as temperature, humidity, and light. However, due to the instability and uncontrollability of these conditions, it is often difficult to guarantee the uniformity and efficiency of seed germination. To improve the germination rate and uniformity of soybean seeds, modern agronomic techniques have gradually introduced constant-temperature germination devices. These devices provide a stable and suitable germination environment for soybean seeds by precisely controlling environmental parameters such as temperature and ventilation, thereby significantly improving the germination speed and rate. Currently, in the germination treatment of soybean seeds, it is generally necessary to first soak the soybean seeds in water to soften them, and then transfer them to a breathable (perforated) container. The bottom of the container is lined with damp gauze and covered with a light-blocking cloth. At this time, it is necessary to keep them moist rather than soaking them. Generally, a certain humidity is maintained by spraying water and ventilation.

[0003] However, existing constant temperature germination devices use a stacking method when placing soybean seeds to increase the capacity of the containers. Since the containers have holes, the water sprayed from the upper layer drips down, resulting in different humidity levels between the upper and lower layers, which affects the control and regulation of humidity. Based on this, we propose a constant temperature germination device for soybean seeds to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a constant temperature germination device for soybean seeds. It adds a water storage box to collect excess water, thus solving the problem that in existing constant temperature germination devices, when spraying water to keep the soil moist, the water sprayed from the upper layer drips downwards, causing different humidity levels between the upper and lower layers, which affects the control and regulation of humidity.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a constant temperature germination device for soybean seeds, including a constant temperature chamber and a frame installed inside the constant temperature chamber. A water storage box is fixedly connected to the lower end of the frame. A ventilated plate is provided on the inner side of the frame. A water-absorbing column is provided at the lower end of the ventilated plate. A humidity-maintaining layer is provided at the upper end of the ventilated plate. A micro water pump is provided on one side of the surface of the water storage box. A water storage tank is provided on the top of the constant temperature chamber. One side of the water storage tank is connected to the micro water pump through a pipeline. The micro water pump is used to pump clean water into the water storage box. A ventilation component is provided at the rear end of the constant temperature chamber to promote air circulation inside the constant temperature chamber.

[0006] Furthermore, the frame and the inner wall of the incubator are detachably connected, and the interior of the incubator is equipped with a pearl cotton insulation layer. The front of the incubator is equipped with an openable door with a transparent glass window.

[0007] Furthermore, a drain outlet is provided on one side of the bottom of the water storage box, and a liquid level sensor is provided on the inside of the water storage box.

[0008] Furthermore, multiple air vents are evenly distributed on the surface of the air vent, and a conductive heating wire is embedded in the bottom of the air vent.

[0009] Furthermore, the humidity-maintaining layer is a double-layer degreased gauze, with the lower layer of degreased gauze connected to the top of the absorbent column, and the upper layer of degreased gauze covering the surface of the frame. The absorbent column is made of absorbent material.

[0010] Furthermore, the ventilation component includes a bellows box fixedly installed at the rear end of the constant temperature chamber. A ventilation fan is provided at the rear end of the bellows box, and a ventilation slot is provided on the inner side of the rear end face of the constant temperature chamber located within the bellows box. The ventilation slots correspond one-to-one with the frame, and air enters the constant temperature chamber through the ventilation slots. An exhaust port is provided at the bottom of the rear end face of the constant temperature chamber, and a valve is provided in the exhaust port.

[0011] Furthermore, a temperature and humidity sensor is installed on the inside of the frame.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The constant temperature germination device for soybean seeds collects excess water through a water storage box to prevent water from the upper layer from flowing downwards during spraying, thus avoiding water transfer when the seeds are stacked. Through the capillary water transport mechanism of the water absorption column, the water in the water storage box is evenly lifted to the humidity maintenance layer by the capillary action of the water absorption column, ensuring that the gauze on the surface of the entire breathable plate remains in a constant state of moisture, rather than relying on the upper layer spraying. This eliminates the humidity difference between the upper and lower layers, and all seeds are in a consistent humid environment. At the same time, the continuous water transfer from the water absorption column makes the humidity fluctuation smaller, ensuring the germination effect. 2. The constant temperature germination device for soybean seeds stores water in a water storage box and combines a liquid level sensor and a micro water pump to easily maintain the water level inside the water storage box. The even distribution of the water suction column facilitates the slow release of water to the humidity maintenance layer, avoiding local over-wetting caused by one-time spraying and ensuring the humidification effect. 3. The constant temperature germination device for soybean seeds has multiple air outlets and corresponding containers, which makes the air circulation more uniform during ventilation, accelerates moisture exchange, prevents condensation in high humidity areas or dryness in low humidity areas, and achieves integrated control of temperature, humidity and ventilation. It also achieves fully automated humidity regulation without the need for frequent manual water spraying. Attached Figure Description

[0013] Figure 1The diagram shown is a schematic representation of the internal structure of this utility model. Figure 2 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 1 ; Figure 3 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 ; Figure 4 The diagram shown is a schematic diagram of the internal cross-sectional structure of this utility model; Figure 5 The diagram shown is a schematic representation of the internal structure of the frame of this utility model.

[0014] Explanation of reference numerals in the attached diagram: 1. Incubator; 2. Frame; 3. Water storage box; 4. Ventilation plate; 5. Water suction column; 6. Miniature water pump; 7. Water storage tank; 11. Air box; 12. Exhaust port. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5 The constant temperature germination device for soybean seeds in this embodiment includes a constant temperature chamber 1 and a frame 2 installed inside the constant temperature chamber 1. A water storage box 3 is fixedly connected to the lower end of the frame 2. A ventilated plate 4 is provided inside the frame 2. A water-absorbing column 5 is provided at the lower end of the ventilated plate 4. A humidity maintenance layer is provided at the upper end of the ventilated plate 4. A micro water pump 6 is provided on one side of the surface of the water storage box 3. A water storage tank 7 is provided on the top of the constant temperature chamber 1. One side of the water storage tank 7 is connected to the micro water pump 6 through a pipeline. The micro water pump 6 is used to pump clean water into the water storage box 3. A ventilation component is provided at the rear end of the constant temperature chamber 1. The ventilation component is used to drive the air circulation inside the constant temperature chamber 1.

[0017] In this embodiment, the inner walls of the frame 2 and the constant temperature chamber 1 are detachably connected, and the inside of the constant temperature chamber 1 is provided with a pearl cotton insulation layer. The front end of the constant temperature chamber 1 is provided with an openable door, and the door is provided with a transparent glass window.

[0018] It should be noted that the detachable connection between frame 2 and the constant temperature chamber 1 adopts a modular dovetail groove slide rail design. The slide rail surface is anodized to ensure an IP67 corrosion resistance rating in high humidity environments. Frame 2 engages with the slide rail on the inner wall of the chamber via positioning pins, facilitating easy assembly and disassembly and enabling thorough cleaning after different batches of seeds have been treated. The pearl cotton insulation layer of the constant temperature chamber 1 is made of 40mm thick closed-cell foamed polyethylene material, resulting in better insulation. The transparent glass window of the chamber door uses 5mm double-layer hollow tempered glass, allowing personnel to easily observe the internal condition.

[0019] Please see Figure 1 and Figure 4 , Figure 5 In this embodiment, a drain outlet is provided on one side of the bottom of the water storage box 3, a liquid level sensor is provided on the inner side of the water storage box 3, multiple air holes are evenly distributed on the surface of the vent plate 4, a conductive heating wire is embedded in the bottom of the vent plate 4, and a temperature and humidity sensor is provided on the inner side of the frame 2.

[0020] It should be noted that the water storage box 3 is made of PPE food-grade plastic, and the drain port of the water storage box 3 adopts a quick-release silicone sealing valve, which can be opened by simply rotating 90° when draining. The liquid level sensor is a capacitive non-contact sensor (model: E+HFMR20), which transmits data to the control unit in real time via the Modbus protocol. When the water level is below 10mm, the micro water pump 6 is automatically triggered to replenish water, and when it is above 30mm, the water pump is turned off to maintain the water depth in the water storage box. At the same time, the conductive heating wire is controlled by a PID controller. Combined with the temperature and humidity sensor, the SHT35 digital sensor is used to collect the surface temperature information of the air vent plate 4 and preset the target temperature according to the soybean germination requirements. The sensor data is transmitted to the main control unit (PID control unit) via the I²C interface. The control process is implemented through an STM32F103 microcontroller, with a measured temperature stability of ±0.3℃. It also avoids the risk of seed thermal damage caused by temperature overshoot. The heating wire is made of nickel-chromium alloy (Cr20Ni80) with a diameter of 0.3mm. It is embedded in the bottom of the ventilation plate 4 in a serpentine grid pattern (line spacing 15mm). The power density is controlled at 15W / dm² to ensure uniform heat distribution.

[0021] Please see Figure 5 In this embodiment, the humidity maintaining layer is a double-layer degreased gauze, the lower layer of degreased gauze is connected to the top of the water-absorbing column 5, the upper layer of degreased gauze covers the surface of the frame 2, and the water-absorbing column 5 is made of water-absorbing material.

[0022] It should be noted that the absorbent column 5 is made of superabsorbent polymer (SAP) and cotton fiber composite. Specifically, it is composed of 70% sodium carboxymethyl cellulose (CMC-Na, water absorption rate ≥50g / g) and 30% degreased cotton fiber (60S count) through electrospinning process, with a diameter of 5mm and a length of 30mm. The double-layer degreased gauze is made of medical-grade 100% cotton material. The lower gauze is 120 mesh (pore size 125μm) and 0.25mm thick. It is connected to the top of the absorbent column 5 by hot melt adhesive dot matrix (connection point spacing 10mm). The upper degreased gauze provides light protection and can cover heavy objects to achieve weight-bearing.

[0023] Please see Figure 3 and Figure 4 In this embodiment, the ventilation component includes a bellows box 11 fixedly installed at the rear end of the constant temperature chamber 1. A ventilation fan is provided at the rear end of the bellows box 11, and a ventilation slot is provided on the inner side of the rear end face of the constant temperature chamber 1 located in the bellows box 11. The ventilation slot and the frame 2 correspond one-to-one. Air enters the constant temperature chamber 1 through the ventilation slot. An exhaust port 12 is provided at the bottom of the rear end face of the constant temperature chamber 1, and a valve is provided in the exhaust port 12.

[0024] It should be noted that the ventilation fan drives the airflow, and multiple ventilation slots deliver air into the constant temperature chamber 1 to achieve uniform airflow to the germination container, while the exhaust port 12 discharges air. The uniform distribution of airflow achieves synchronous regulation of temperature and humidity.

[0025] The working principle of the above embodiments is as follows: Soaked soybean seeds are evenly spread on a lower layer of degreased gauze, which is then placed on a breathable plate 4. After placement, an upper layer of degreased gauze is placed over the frame 2. Multiple frames 2 are stacked in the constant temperature chamber 1. Upon initial placement, water spraying is required to maintain a certain humidity level in the humidity maintenance layer. During germination, a micro water pump 6 pumps clean water from the water storage tank 7 into the water storage tank 3 based on the liquid level sensor signal, maintaining the water level in the water storage tank 3. The water suction column 5 then uses capillary action to evenly lift water to the humidity maintenance layer at a speed of 8 mm / min, forming a bottom-up water supply mode. This avoids the uneven dripping problem caused by traditional top-level spraying. The conductive heating wire in the breathable plate 4 can heat the seeds to maintain the temperature, ensuring constant temperature and humidity during seed germination. Ventilation is achieved using a ventilation component, with air evenly delivered into the constant temperature chamber 1 through ventilation slots for air exchange. It should be noted that the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A constant-temperature germination device for soybean seeds, comprising a constant-temperature chamber (1), characterized in that: It also includes a frame (2) installed inside the constant temperature chamber (1), a water storage box (3) is fixedly connected to the lower end of the frame (2), a ventilated plate (4) is provided inside the frame (2), a water-absorbing column (5) is provided at the lower end of the ventilated plate (4), a humidity maintenance layer is provided at the upper end of the ventilated plate (4), a micro water pump (6) is provided on one side of the surface of the water storage box (3), a water storage tank (7) is provided on the top of the constant temperature chamber (1), and one side of the water storage tank (7) is connected to the micro water pump (6) through a pipeline. The micro water pump (6) is used to pump clean water into the water storage box (3), and a ventilation component is provided at the rear end of the constant temperature chamber (1). The ventilation component is used to drive the air circulation inside the constant temperature chamber (1).

2. The constant-temperature germination device for soybean seeds according to claim 1, characterized in that: The inner walls of the frame (2) and the constant temperature box (1) are detachably connected, and the inside of the constant temperature box (1) is provided with a pearl cotton insulation layer. The front end of the constant temperature box (1) is provided with an openable door, and the door is provided with a transparent glass window.

3. The constant-temperature germination device for soybean seeds according to claim 1, characterized in that: A drain outlet is provided on one side of the bottom of the water storage box (3), and a liquid level sensor is provided on the inside of the water storage box (3).

4. The constant-temperature germination device for soybean seeds according to claim 1, characterized in that: Multiple air holes are evenly distributed on the surface of the air-permeable plate (4), and a conductive heating wire is embedded in the bottom of the air-permeable plate (4).

5. The constant-temperature germination device for soybean seeds according to claim 1, characterized in that: The humidity-maintaining layer is a double-layer degreased gauze. The lower layer of degreased gauze is connected to the top of the absorbent column (5), and the upper layer of degreased gauze covers the surface of the frame (2). The absorbent column (5) is made of absorbent material.

6. The constant-temperature germination device for soybean seeds according to claim 1, characterized in that: The ventilation assembly includes a bellows box (11) fixedly installed at the rear end of the constant temperature chamber (1). A ventilation fan is provided at the rear end of the bellows box (11), and a ventilation slot is provided on the inner side of the rear end face of the constant temperature chamber (1) located inside the bellows box (11). The ventilation slot and the frame (2) correspond one-to-one. Air enters the constant temperature chamber (1) through the ventilation slot. An exhaust port (12) is provided at the bottom of the rear end face of the constant temperature chamber (1), and a valve is provided in the exhaust port (12).

7. The constant-temperature germination device for soybean seeds according to claim 1, characterized in that: A temperature and humidity sensor is installed on the inside of the frame (2).

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