Rice germination and seed soaking equipment
By combining a dry-wet separation control box, a temperature-controlled water circulation system, and an oxygenation module, the problems of insufficient temperature control and oxygen content in rice germination equipment are solved, achieving uniform germination of rice seeds and a safe and reliable germination process, reducing costs and improving production consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FENGHUA DAYU INSTR CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-28
AI Technical Summary
Existing rice germination equipment suffers from problems such as difficulty in temperature control and insufficient oxygen content leading to uneven germination or low germination rate. It also poses safety hazards such as short circuits in the soaking solution, backflow of liquid in the blower, and dry burning of the heating element.
It adopts a dry and wet separation control box, temperature-controlled water circulation module, oxygenation module and modular structure design, including PLC temperature control module, circulation pump, heating tube, blower, air blowing pipe and touch screen, to achieve precise constant temperature control, dual uniform oxygenation and safety protection, and the modular design is suitable for large-scale production.
It achieved uniform germination of rice seeds, improved germination rate, eliminated safety hazards, reduced operating costs, and improved batch processing consistency of germination.
Smart Images

Figure CN224556327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rice seed soaking and germination equipment, and in particular to a rice seed soaking and germination equipment. Background Technology
[0002] Currently, the whole process of rice planting is being mechanized across the country. The level of mechanization from seedling raising to harvesting is already very high, and there are even unmanned rice transplanters and drones for spraying pesticides.
[0003] However, the soaking and germination of rice seeds before seedling production on the assembly line still relies on the old method of using water tanks or cement pools. Due to difficulties in temperature control and insufficient oxygen content in the piled rice seeds, this leads to uneven germination or a low germination rate, significantly impacting yield. Existing germination equipment adds water pumps and blowers to increase oxygenation and improve germination rates. However, in actual use, there are safety hazards such as the lack of dry-wet isolation between the control circuit in the control box and the water pumps; liquid backflow in the blowers after power outages, affecting their lifespan; and the heating elements posing a risk of dry burning. Utility Model Content
[0004] The purpose of this invention is to provide a rice germination and soaking device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A rice germination and soaking device includes a main shell with an internal water tank, a dry and wet separation control box fixedly installed on the outside of the main shell, a detachable cover plate installed on the top of the main shell, a temperature-controlled water circulation module fixedly installed on the upper part of the main shell, an oxygenation module fixedly installed on the lower part of the main shell, and a tray for placing rice seeds installed above the oxygenation module.
[0007] The dry and wet separation control box includes a first control box and a second control box arranged adjacent to each other, and the two are connected in a sealed manner.
[0008] The temperature-controlled water circulation module includes a circulation pump fixedly installed in the second control box, a heating pipe fixedly installed in the second control box and connected to the circulation pump, and a sprinkler pipe fixedly installed on the upper part of the main housing and connected to the heating pipe; the water inlet of the circulation pump is connected to the bottom water inlet located below the main housing, and a water flow switch is provided between the water outlet of the circulation pump and the heating pipe; the heating pipe includes a PLC temperature control module fixedly installed in the first control box; the PLC temperature control module includes a temperature sensor fixedly installed on the lower part of the main housing; the top surface of the control box is provided with a touch screen that is signal-connected to the PLC temperature control module.
[0009] The oxygenation module includes a blower fixedly installed in the control box, an air blowing pipe fixedly installed at the lower part of the main housing and connected to the blower, and a one-way valve fixedly installed between the blower and the air blowing pipe; the air blowing pipe is fixedly installed below the support plate.
[0010] The cover plate includes several sub-cover plates that can be freely spliced together, which facilitates local operation and prevents heat loss from the pool.
[0011] Preferably, the main shell wall includes inner and outer layers and an insulation layer disposed between the inner and outer layers, which prolongs the insulation time, reduces the heating frequency, and lowers the cost of soaking and germination.
[0012] Preferably, the sprinkler pipe is arranged around the upper inner wall of the main shell, and the sprinkler pipe is evenly provided with several water outlets to sprinkle circulating water into the main tank, so that the water output is uniform and the temperature is easy to control.
[0013] Preferably, the air blowing pipe includes a rectangular main pipe and several parallel air outlet pipes that are arranged in the width direction of the rectangular main pipe and pass through the rectangular main pipe, so as to realize oxygenation and create water flow to make the water temperature more uniform.
[0014] Compared with existing technologies, the rice germination and soaking device of this application has the following beneficial effects:
[0015] 1. Precise temperature control improves germination uniformity:
[0016] By using a PLC temperature control module to monitor water temperature in real time, combined with a closed-loop thermal circulation system consisting of a circulating pump, heating element, and sprinkler pipe, precise dynamic adjustment of water temperature is achieved. This solves the problem of low germination rate caused by water temperature fluctuations in traditional methods, ensuring that rice seeds germinate evenly at the optimal temperature and improving the germination rate.
[0017] 2. Dual temperature and oxygenation to eliminate accumulation dead zones:
[0018] The blower of the oxygenation module continuously delivers airflow to the rice seeds on the tray through the bottom air pipe:
[0019] (1) Airflow penetrates the rice seed layer to increase oxygen content and prevent seeds from rotting due to lack of oxygen;
[0020] (2) The combined effect of water circulation and gas disturbance makes the temperature field of the pool uniform, which completely solves the problem of uneven internal temperature caused by traditional stacking.
[0021] 3. Multiple measures to eliminate safety hazards:
[0022] (1) The control box is set up with a first control box and a second control box that are sealed and connected respectively, and the control circuit is isolated from the water pump equipment in dry and wet conditions to prevent problems in the water circuit from affecting the control circuit and causing a short circuit.
[0023] (2) A one-way valve is installed between the blower and the blow pipe to prevent liquid from flowing back into the blower and causing damage after a power outage;
[0024] (3) A water flow switch sensor is installed between the circulating pump and the heating tube to prevent the heating tube from continuing to work after the circulating pump stops unexpectedly, which could pose a safety hazard of dry burning.
[0025] 4. High-efficiency energy-saving insulation, reducing operating costs:
[0026] The main shell adopts a double-layer sandwich structure (filled with polyurethane insulation material, etc.) to reduce heat loss rate and heating frequency. Combined with the efficient heat conversion of heating tubes (PTC ceramic heating tubes, etc.), it reduces overall energy consumption.
[0027] 5. Fully automated process, reducing human intervention:
[0028] The touchscreen presets soaking / germination temperature and time parameters (e.g., soaking for 12 hours at 25°C, germination for 18 hours at 32°C), and the PLC automatically performs temperature adjustment, cycle start / stop, and timer operations. This avoids human experience errors, ensures batch processing consistency, and improves the germination pass rate.
[0029] 6. Modular structural design, adaptable to mass production:
[0030] (1) The modular cover facilitates the storage and retrieval of rice seeds in separate areas (mesh bags stacked), prevents excessive heat loss from the pool, reduces heat loss, and can be combined with forklift movement design to meet the needs of large-scale farm transfer.
[0031] (2) Ensure that there are no dead corners when watering the surrounding sprinkler pipes. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0033] Figure 2 This is an exploded view of the structure of an embodiment of the present utility model;
[0034] Figure 3 This is a schematic diagram of the structure of the temperature-controlled water circulation module and the oxygenation module in the embodiment of this utility model.
[0035] Reference numerals: 1. Main housing; 2. Sprinkler pipe; 3. Support plate; 4. Cover plate; 5. Air blowing pipe; 6. PLC temperature control module; 7. Blower; 8. Heating element; 9. Circulation pump; 10. Touch screen; 11. Temperature sensor; 12. Bottom water inlet; 13. One-way valve; 14. Water flow switch; 15. Filter; 16. First control box; 17. Second control box. Detailed Implementation
[0036] The following detailed description illustrates the specific implementation method:
[0037] Example 1
[0038] like Figure 1-3 As shown in the figure, this embodiment demonstrates a rice germination and soaking device, including a main shell 1 with an internal water tank, a dry and wet separation control box fixedly installed on the outside of the main shell 1, a cover plate 4 detachably installed on the top of the main shell 1, a temperature-controlled water circulation module fixedly installed on the upper part of the main shell 1, an oxygenation module fixedly installed on the lower part of the main shell 1, and a tray 3 for placing rice seeds installed above the oxygenation module.
[0039] In this embodiment, the dry and wet separation control box includes a first control box and a second control box arranged adjacent to each other, and the two are connected in a sealed manner.
[0040] In this embodiment, the temperature-controlled water circulation module includes a circulation pump 9 fixedly installed in the second control box, a heating tube 8 fixedly installed in the second control box and connected to the circulation pump 9, and a sprinkler pipe 2 fixedly installed on the upper part of the main housing 1 and connected to the heating tube 8. The water inlet of the circulation pump 9 is connected to the bottom water inlet 12 located below the main housing 1. A flow switch 14 is provided between the water outlet of the circulation pump 9 and the heating tube 8. It should be noted that the flow switch is a sensor device used for water circulation control, water inlet and outlet control, water heating control, water pump switch control, solenoid valve on / off control, or water outlet power off / on control, etc. When a certain flow rate is reached, it converts the water flow into a switch-type electrical signal. In this embodiment, it is used to prevent the heating tube from dry burning. The heating tube 8 includes a PLC temperature control module 6 fixedly installed in the first control box. The PLC temperature control module 6 includes a temperature sensor 11 fixedly installed on the lower part of the main housing 1. Further, in this embodiment, a commonly used PT100 temperature sensor 11 and a PTC ceramic heating tube 8 can be selected. The top surface of the control box is equipped with a touch screen 10 that is connected to the PLC temperature control module 6. A filter 15 is provided between the circulating pump and the water inlet to prevent the sprinkler pipe 2 from becoming clogged.
[0041] In this embodiment, the oxygenation module includes a blower 7 fixedly installed in the control box, an air blowing pipe 5 fixedly installed at the lower part of the main housing 1 and connected to the blower 7, and a one-way valve 13 fixedly installed between the blower 7 and the air blowing pipe to prevent liquid from flowing back into the blower and causing damage after an accidental power outage; the air blowing pipe 5 is fixedly installed below the support plate 3.
[0042] In this embodiment, the cover plate 4 includes several sub-cover plates 4 that can be freely spliced together, which facilitates local operation and prevents heat loss from the pool.
[0043] Seed soaking-germination process:
[0044] Step 1: Pack the rice seeds into mesh bags, stack them in layers on tray 3, and close the cover 4;
[0045] Step 2: Set the soaking stage parameters (temperature, duration) and germination stage parameters via the touchscreen 10;
[0046] Step 3: Start the equipment. The circulating pump 9 draws water from the bottom inlet 12. After being heated by the heating pipe 8, the water is evenly sprayed onto the water tank of the main shell 1 by the surrounding sprinkler pipe 2.
[0047] Step 4: The PLC temperature control module 6 monitors the water temperature in real time via temperature sensor 11.
[0048] (1) When the water temperature is lower than the set threshold, start the heating element 8 and accelerate the circulation pump 9;
[0049] (2) When the water temperature reaches the set value, switch the circulation pump 9 to the low flow maintenance mode;
[0050] Step 5: Simultaneously start the blower 7, and the airflow diffuses upward from the bottom of the tray 3 through the air blowing pipe 5:
[0051] (1) Airflow penetrates the gaps between rice seeds to increase oxygen content;
[0052] (2) The combined disturbance of water flow and air bubbles eliminates temperature stratification;
[0053] Step 6: After soaking, the PLC automatically switches to germination mode and runs according to the preset temperature-time curve;
[0054] Step 7: When the germination process is complete, open the modular cover 4 and remove the rice seeds.
[0055] Example 2
[0056] like Figure 1-3 As shown, another embodiment demonstrates a rice germination and soaking device based on embodiment 1. Further, in a further possible implementation of this embodiment, the main shell 1 wall includes inner and outer layers and a heat insulation layer disposed between the inner and outer layers. The inner and outer layers can be made of PP material and filled with polyurethane heat insulation material to extend the heat insulation time, reduce the heating frequency, and reduce the cost of soaking and germination.
[0057] To further explain, in another possible embodiment of this example, the water spray pipe 2 is arranged around the upper inner wall of the main shell, and the water spray pipe 2 is evenly provided with a plurality of water outlets to spray circulating water into the main tank, so that the water is evenly distributed and the temperature is easy to control.
[0058] To further explain, in another possible embodiment of this example, the air blowing pipe 5 includes a rectangular main pipe and a plurality of parallel air outlet pipes that are arranged in the width direction of the rectangular main pipe and penetrate the rectangular main pipe, so as to realize oxygenation and create water flow to make the water temperature more uniform.
[0059] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A rice seed germination and soaking device, characterized in that: It includes a main shell with an internal water tank, a dry and wet separation control box fixedly installed on the outside of the main shell, a detachable cover plate installed on the top of the main shell, a temperature-controlled water circulation module fixedly installed on the upper part of the main shell, an oxygenation module fixedly installed on the lower part of the main shell, and a tray for placing rice seeds installed above the oxygenation module. The dry and wet separation control box includes a first control box and a second control box arranged adjacent to each other, and the two are connected in a sealed manner. The temperature-controlled water circulation module includes a circulation pump fixedly installed in the second control box, a heating pipe fixedly installed in the second control box and connected to the circulation pump, and a sprinkler pipe fixedly installed on the upper part of the main housing and connected to the heating pipe; the water inlet of the circulation pump is connected to a bottom water inlet located below the main housing, and a flow switch is provided between the water outlet of the circulation pump and the heating pipe; the heating pipe includes a PLC temperature control module fixedly installed in the first control box; the PLC temperature control module includes a temperature sensor fixedly installed on the lower part of the main housing; a touch screen connected to the PLC temperature control module is provided on the top surface of the control box; The oxygenation module includes a blower fixedly installed in the control box, an air blowing pipe fixedly installed at the lower part of the main housing and connected to the blower, and a one-way valve fixedly installed between the blower and the air blowing pipe; the air blowing pipe is fixedly installed below the support plate. The cover plate includes several sub-cover plates that can be freely spliced together.
2. The rice germination and soaking equipment according to claim 1, characterized in that: The main shell wall includes inner and outer layers and an insulation layer disposed between the inner and outer layers.
3. The rice germination and soaking equipment according to claim 1, characterized in that: The sprinkler pipe is fixedly arranged around the upper inner wall of the main shell, and the sprinkler pipe is provided with several water outlets.
4. The rice germination and soaking equipment according to claim 1, characterized in that: The air blowing pipe includes a rectangular main pipe and several parallel air outlet pipes that are arranged to pass through the rectangular main pipe along the width direction of the rectangular main air outlet pipe.