A crop planting and germination accelerating device

Abstract

The utility model relates to a kind of crop planting germination equipment, it is related to crop planting device field, including germination box, humidification heating atomization injection assembly, placing net and exhaust grille, germination box is fixedly connected with humidification heating atomization injection assembly, placing net is connected with germination box, exhaust grille is connected with germination box, it is equipped with self-adapting differential pressure dead zone elimination flow uniforming component on germination box, self-adapting differential pressure dead zone elimination flow uniforming component includes center flow uniforming disc, annular flow uniforming disc, self-adapting differential pressure valve and dead zone elimination flow guide assembly, center flow uniforming disc is equipped with inner ring flow guide hole, annular flow uniforming disc is equipped with outer ring flow guide hole, annular flow uniforming disc is fixedly connected with germination box, center flow uniforming disc is fixedly connected with annular flow uniforming disc, self-adapting differential pressure valve is arranged in inner ring flow guide hole and outer ring flow guide hole, the both ends of dead zone elimination flow guide assembly are connected with center flow uniforming disc and annular flow uniforming disc, beneficial effect: avoid the low-temperature dead zone formed in germination box due to hot air natural convection.

Description

Technical Field

[0001] This utility model relates to the field of crop planting device technology, and in particular to a crop planting germination device. Background Technology

[0002] As is widely known, germination is a crucial step in the field of industrialized crop seedling production. Its success directly affects the uniformity of seedling emergence and the quality of seedlings. Currently, common germination equipment typically adopts a constant temperature and humidity chamber structure, which provides a suitable germination environment through a heating and humidification device at the bottom.

[0003] Chinese patent CN222897566U describes a crop seed germination device, including a germination box, a temperature regulation mechanism, a humidity regulation mechanism, and a control box. A uniform plate is fixedly connected inside the germination box. However, in actual use, the following problems still exist:

[0004] Existing equipment relies on natural convection of hot air or simple fixed air ducts for heat distribution. During the natural rise of hot air, it tends to concentrate in the center of the chamber, which prevents the hot airflow from being evenly distributed across the entire cross section. Consequently, low-temperature dead zones are formed at the edges and corners due to the inability of the airflow to circulate effectively. This results in differences in the temperature environment of the same batch of seeds, leading to uneven germination speed and reduced uniformity.

[0005] Therefore, a crop germination device is proposed. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a crop planting and germination device.

[0007] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0008] A crop germination and propagation device includes a germination box, a humidifying and heating atomizing spray assembly, a placement net, and an exhaust grille. The bottom of the germination box is fixedly connected to the upper surface of the humidifying and heating atomizing spray assembly. The placement net is connected to the inner wall of the germination box, and the exhaust grille is connected to the outer wall of the germination box. An adaptive pressure differential dead zone elimination and flow equalization component is provided on the inner wall of the germination box. The adaptive pressure differential dead zone elimination and flow equalization component is located between the placement net and the humidifying and heating atomizing spray assembly. The adaptive pressure differential dead zone elimination and flow equalization component includes a central flow equalization plate, an annular flow equalization plate, an adaptive pressure differential valve, and a dead zone elimination and flow guiding assembly. The central flow equalization plate has a plurality of inner ring flow guiding holes, and the inner ring flow guiding holes are evenly distributed in the placement net. Within the central flow equalization plate, the annular flow equalization plate is provided with a plurality of outer ring guide holes, which are evenly distributed within the annular flow equalization plate. The outer wall of the annular flow equalization plate is fixedly connected to the inner wall of the germination chamber, and the outer wall of the central flow equalization plate is fixedly connected to the inner wall of the annular flow equalization plate. An adaptive differential pressure valve is provided within both the inner and outer ring guide holes. The connection method between the adaptive differential pressure valve and the inner ring guide hole is the same as the connection method between the adaptive differential pressure valve and the outer ring guide hole. The adaptive differential pressure valve is connected to the inner wall of the inner ring guide hole. One end of the dead zone elimination guide component is connected to the central flow equalization plate, and the other end of the dead zone elimination guide component is connected to the annular flow equalization plate.

[0009] The adaptive differential pressure valve is located at the bottom end of the inner wall of the inner ring guide hole. The adaptive differential pressure valve includes a flap, a rotating shaft, and an adaptive opening and closing adjustment component. There are two adaptive opening and closing adjustment components. The flap is fixedly connected to the middle of the rotating shaft. The two ends of the rotating shaft are respectively connected to the inner wall of the inner ring guide hole through the adaptive opening and closing adjustment component.

[0010] The inner wall of the inner ring guide hole is provided with a circular groove and a rotating hole, and the rotating hole is connected to the circular groove. The adaptive opening and closing degree adjustment component includes a torsion spring, which is located in the circular groove. The end of the rotating shaft passes through the rotating hole and extends into the circular groove, and the rotating shaft is rotatably connected to the inner wall of the rotating hole. One end of the torsion spring is connected to the outer wall of the rotating shaft, and the other end of the torsion spring is connected to the inner wall of the circular groove.

[0011] The circular groove is provided with a limiting component, which includes a limiting plate and a blocking plate. One end of the limiting plate is fixedly connected to the outer wall of the rotating shaft, and one end of the blocking plate is fixedly connected to the inner wall of the circular groove.

[0012] The dead zone elimination flow guiding assembly includes a flow guiding pipe, and there are several flow guiding pipes. One end of the flow guiding pipe is connected to the central flow equalization disk, and the other end of the flow guiding pipe is connected to the annular flow equalization disk. The two ends of the flow guiding pipe are respectively connected to the inner ring flow guiding hole and the outer ring flow guiding hole.

[0013] The connection points between the guide pipe and the inner and outer ring guide holes are all located above the flap.

[0014] A first truncated conical tube is uniformly arranged on the central flow equalization plate, and a second truncated conical tube is uniformly arranged on the annular flow equalization plate. The small-diameter end of the first truncated conical tube is fixedly connected to the upper surface of the central flow equalization plate and is connected to the inner ring guide hole. The small-diameter end of the second truncated conical tube is fixedly connected to the upper surface of the annular flow equalization plate and is connected to the outer ring guide hole.

[0015] The exhaust grille is provided in two sets, and the two sets of exhaust grilles are respectively connected to both sides of the outer wall of the germination box.

[0016] Compared with the prior art, this utility model has the following beneficial effects: Through the coordinated work of the central flow equalization plate, the annular flow equalization plate and the adaptive differential pressure valve composed of flaps, rotating shafts and torsion springs inside, the uneven distribution of airflow caused by a single air inlet or fixed guide hole in the germination equipment is avoided, which causes local temperature differences. This improves the uniformity and stability of the temperature field, provides a stable environment for seed germination, and improves the uniformity of germination. The opening of the flap is adaptively adjusted by the pressure difference, and the high-speed airflow guides the dead zone air to form an internal circulation, which avoids the formation of a continuous low temperature dead zone at the edge and corner of the germination box caused by the natural convection of hot air, which causes inconsistent spatial temperature. This further improves the overall temperature consistency and germination uniformity in the germination box. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a top view of the cross-sectional structure of the present invention;

[0019] Figure 3 This is a frontal cross-sectional view of the present invention.

[0020] Figure 4 This is a side view of the cross-sectional structure of the present invention;

[0021] Figure 5 This is a schematic cross-sectional view of the circular groove in this utility model.

[0022] Figure 6This utility model Figure 3 A magnified structural diagram of point A is shown below;

[0023] Figure 7 This utility model Figure 4 A magnified structural diagram of point B is shown below;

[0024] Figure 8 This utility model Figure 5 A magnified structural diagram of point C is shown.

[0025] 1. Germination box; 2. Humidifying, heating, and atomizing spray assembly; 3. Placement net; 4. Exhaust grille; 5. Central flow equalization plate; 6. Annular flow equalization plate; 7. Inner ring guide hole; 8. Outer ring guide hole; 9. Flip plate; 10. Rotating shaft; 11. Circular groove; 12. Rotating hole; 13. Limiting plate; 14. Baffle plate; 15. Torsion spring; 16. Guide pipe; 17. First truncated tapered tube; 18. Second truncated tapered tube. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0027] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, in part of which will be obvious from the description or may be learned by practice of the invention.

[0028] like Figure 1-4As shown, a crop germination device includes a germination box 1, a humidifying and heating atomizing spray assembly 2, a placement net 3, and an exhaust grille 4. The bottom end of the germination box 1 is fixedly connected to the upper surface of the humidifying and heating atomizing spray assembly 2. The placement net 3 is connected to the inner wall of the germination box 1, and the exhaust grille 4 is connected to the outer wall of the germination box 1. An adaptive pressure differential dead zone elimination and flow equalization component is provided on the inner wall of the germination box 1. The adaptive pressure differential dead zone elimination and flow equalization component is located between the placement net 3 and the humidifying and heating atomizing spray assembly 2. The adaptive pressure differential dead zone elimination and flow equalization component includes a central flow equalization plate 5, an annular flow equalization plate 6, an adaptive pressure differential valve, and a dead zone elimination and guide assembly. The central flow equalization plate 5 has several inner ring guide holes 7, and the inner ring guide holes 7 are... The inner and outer ring guide holes 7 are evenly distributed within the central flow equalization plate 5. The annular flow equalization plate 6 has several outer ring guide holes 8, which are evenly distributed within the annular flow equalization plate 6. The outer wall of the annular flow equalization plate 6 is fixedly connected to the inner wall of the germination box 1. The outer wall of the central flow equalization plate 5 is fixedly connected to the inner wall of the annular flow equalization plate 6. Both the inner and outer ring guide holes 7 and the outer ring guide holes 8 are equipped with adaptive differential pressure valves. The adaptive differential pressure valves are connected to the inner ring guide holes 7 in the same way as the adaptive differential pressure valves are connected to the outer ring guide holes 8. The adaptive differential pressure valves are connected to the inner wall of the inner ring guide holes 7. One end of the dead zone elimination guide component is connected to the central flow equalization plate 5, and the other end of the dead zone elimination guide component is connected to the annular flow equalization plate 6.

[0029] like Figure 3 , Figure 4 and Figure 6 As shown, the adaptive differential pressure valve is located at the bottom of the inner wall of the inner ring guide hole 7. The adaptive differential pressure valve includes a flap 9, a rotating shaft 10, and an adaptive opening and closing adjustment component. There are two adaptive opening and closing adjustment components. The flap 9 is fixedly connected to the middle of the rotating shaft 10. The two ends of the rotating shaft 10 are respectively connected to the inner wall of the inner ring guide hole 7 through the adaptive opening and closing adjustment component.

[0030] like Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the inner wall of the inner ring guide hole 7 is provided with a circular groove 11 and a rotating hole 12, and the rotating hole 12 is connected to the circular groove 11. The adaptive opening and closing degree adjustment component includes a torsion spring 15, which is located in the circular groove 11. The end of the rotating shaft 10 passes through the rotating hole 12 and extends into the circular groove 11. The rotating shaft 10 is rotatably connected to the inner wall of the rotating hole 12. One end of the torsion spring 15 is connected to the outer wall of the rotating shaft 10, and the other end of the torsion spring 15 is connected to the inner wall of the circular groove 11.

[0031] like Figure 7 and Figure 8As shown, a limiting component is provided in the circular groove 11. The limiting component includes a limiting plate 13 and a blocking plate 14. One end of the limiting plate 13 is fixedly connected to the outer wall of the rotating shaft 10, and one end of the blocking plate 14 is fixedly connected to the inner wall of the circular groove 11.

[0032] like Figure 3 , Figure 4 and Figure 6 As shown, the dead zone elimination flow guiding assembly includes a flow guiding pipe 16, and there are several flow guiding pipes 16. One end of the flow guiding pipe 16 is connected to the central flow equalization disk 5, and the other end of the flow guiding pipe 16 is connected to the annular flow equalization disk 6. The two ends of the flow guiding pipe 16 are respectively connected to the inner ring flow guiding hole 7 and the outer ring flow guiding hole 8.

[0033] like Figure 4 and Figure 6 As shown, the connection between the guide pipe 16 and the inner ring guide hole 7 and the outer ring guide hole 8 is located above the flap 9.

[0034] like Figure 2-6 As shown, a first truncated conical tube 17 is evenly arranged on the central flow equalization plate 5, and a second truncated conical tube 18 is evenly arranged on the annular flow equalization plate 6. The small-diameter end of the first truncated conical tube 17 is fixedly connected to the upper surface of the central flow equalization plate 5, and the first truncated conical tube 17 is connected to the inner ring guide hole 7. The small-diameter end of the second truncated conical tube 18 is fixedly connected to the upper surface of the annular flow equalization plate 6, and the second truncated conical tube 18 is connected to the outer ring guide hole 8.

[0035] like Figure 1 , Figure 3 and Figure 5 As shown, there are two sets of exhaust grilles 4, which are respectively connected to the two sides of the outer wall of the germination box 1.

[0036] The work process is as follows:

[0037] S1. In use, open the germination box 1, place the seeds to be germinated on the placement net 3, close the germination box 1, and start the humidifying and heating atomizing spray assembly 2 to generate an upward humidified and hot airflow. At this time, the temperature above is uniform, and the pressure difference formed by the central flow equalizing plate 5 and the annular flow equalizing plate 6 is the same. The adaptive differential pressure valves in the inner ring guide holes 7 of the central flow equalizing plate 5 and the outer ring guide holes 8 of the annular flow equalizing plate 6 are at the same opening. The flap 9 remains stable under the action of the rotating shaft 10 and the torsion spring 15. The humidified and heating atomizing spray assembly 2 sprays humidified and hot air evenly through all the inner ring guide holes 6. The airflow is diffused through the outer ring guide hole 7 and the outer ring guide hole 8, and then through the first truncated conical tube 17 and the second truncated conical tube 18 before being evenly distributed through the placement net 3. The exhaust gas is discharged through the exhaust grilles 4 on both sides. Through the coordinated work of the central flow equalization plate 5, the annular flow equalization plate 6 and the adaptive differential pressure valve composed of the flap 9, the rotating shaft 10 and the torsion spring 15 inside, the uneven distribution of airflow caused by a single air inlet or fixed guide hole in the germination equipment is avoided, which causes local temperature differences. This improves the uniformity and stability of the temperature field, provides a stable environment for seed germination, and improves the uniformity of germination.

[0038] S2, when a low-temperature dead zone forms at the edge of the germination box 1, the air density within the dead zone increases, the static pressure rises, and the pressure difference between its upper and lower parts decreases. Meanwhile, the temperature in the central region is high, the static pressure decreases, and the pressure difference between its upper and lower parts increases. This increases the pressure difference between the flaps 9 of the inner ring guide holes 7, overcoming the torque of the torsion spring 15, and causing the opening to increase. Conversely, the pressure difference between the flaps 9 of the outer ring guide holes 8 decreases, and the opening decreases under the action of the torsion spring 15. The hot and humid air rushes towards the center with less resistance, causing a sharp increase in the flow velocity within the inner ring guide holes 7. This generates negative pressure at the connection between the guide pipe 16 and the inner ring guide holes 7. Since the connection between the guide pipe 16 and the inner ring guide hole 7 and the outer ring guide hole 8 is located above the flap 9, the guide pipe 16 draws in the low-temperature air in the dead zone of the outer ring guide hole 8. The hot and cold air mix in the pipe, actively breaking the dead zone. The opening of the flap 9 is adaptively adjusted by the pressure difference change, and the high-speed airflow guides the air in the dead zone to form an internal circulation. This avoids the formation of a continuous low-temperature dead zone at the edge and corner of the germination box 1 caused by the natural convection of hot air, which would cause inconsistent space temperature. This further improves the overall temperature consistency and germination uniformity in the germination box 1.

[0039] S3, when the temperature above reaches a uniform level, as the dead zone is eliminated, the temperature gradient decreases, the pressure returns to a uniform level, and the adaptive differential pressure valves in the inner ring guide hole 7 and the outer ring guide hole 8 gradually return to a uniform opening degree under the action of the torsion spring 15, and the equipment re-enters the normal uniform heating state.

[0040] To prevent the flap 9 from overturning, mechanical limiting is achieved by the cooperation of the limiting plate 13 and the blocking plate 14. By symmetrically setting the exhaust grille 4 on both sides of the germination box 1, the airflow is guided to form a uniform outflow path in the horizontal direction, which promotes the hot and humid airflow to move to both sides of the box during the rising process.

[0041] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A crop germination device, comprising a germination box (1), a humidifying and heating atomizing spray assembly (2), a placement net (3), and an exhaust grille (4), wherein the bottom end of the germination box (1) is fixedly connected to the upper surface of the humidifying and heating atomizing spray assembly (2), the placement net (3) is connected to the inner wall of the germination box (1), and the exhaust grille (4) is connected to the outer wall of the germination box (1), characterized in that: The inner wall of the germination box (1) is provided with an adaptive pressure differential dead zone elimination and flow equalization component. The adaptive pressure differential dead zone elimination and flow equalization component is located between the placement net (3) and the humidification heating atomizing spray assembly (2). The adaptive pressure differential dead zone elimination and flow equalization component includes a central flow equalization plate (5), an annular flow equalization plate (6), an adaptive pressure differential valve, and a dead zone elimination and flow guiding assembly. The central flow equalization plate (5) is provided with a plurality of inner ring flow guiding holes (7), and the inner ring flow guiding holes (7) are evenly distributed in the central flow equalization plate (5). The annular flow equalization plate (6) is provided with a plurality of outer ring flow guiding holes (8), and the outer ring flow guiding holes (8) are evenly distributed in the annular flow equalization plate (6). The outer wall of the annular flow equalization plate (6) is fixedly connected to the inner wall of the germination box (1), the outer wall of the central flow equalization plate (5) is fixedly connected to the inner wall of the annular flow equalization plate (6), the adaptive differential pressure valve is provided in both the inner ring guide hole (7) and the outer ring guide hole (8), the connection method between the adaptive differential pressure valve and the inner ring guide hole (7) is the same as the connection method between the adaptive differential pressure valve and the outer ring guide hole (8), the adaptive differential pressure valve is connected to the inner wall of the inner ring guide hole (7), one end of the dead zone elimination guide component is connected to the central flow equalization plate (5), and the other end of the dead zone elimination guide component is connected to the annular flow equalization plate (6).

2. The crop germination and sprouting equipment according to claim 1, characterized in that: The adaptive differential pressure valve is located at the bottom end of the inner wall of the inner ring guide hole (7). The adaptive differential pressure valve includes a flap (9), a rotating shaft (10), and an adaptive opening and closing adjustment component. There are two adaptive opening and closing adjustment components. The flap (9) is fixedly connected to the middle of the rotating shaft (10). The two ends of the rotating shaft (10) are respectively connected to the inner wall of the inner ring guide hole (7) through the adaptive opening and closing adjustment component.

3. The crop germination and sprouting equipment according to claim 2, characterized in that: The inner wall of the inner ring guide hole (7) is provided with a circular groove (11) and a rotating hole (12), and the rotating hole (12) is connected to the circular groove (11). The adaptive opening and closing degree adjustment component includes a torsion spring (15), which is located in the circular groove (11). The end of the rotating shaft (10) passes through the rotating hole (12) and extends into the circular groove (11). The rotating shaft (10) is rotatably connected to the inner wall of the rotating hole (12). One end of the torsion spring (15) is connected to the outer wall of the rotating shaft (10), and the other end of the torsion spring (15) is connected to the inner wall of the circular groove (11).

4. The crop germination and sprouting equipment according to claim 3, characterized in that: The circular groove (11) is provided with a limiting member, which includes a limiting plate (13) and a blocking plate (14). One end of the limiting plate (13) is fixedly connected to the outer wall of the rotating shaft (10), and one end of the blocking plate (14) is fixedly connected to the inner wall of the circular groove (11).

5. The crop germination and sprouting equipment according to claim 3, characterized in that: The dead zone elimination flow guiding assembly includes a flow guiding pipe (16), and there are several flow guiding pipes (16). One end of the flow guiding pipe (16) is connected to the central flow equalization disk (5), and the other end of the flow guiding pipe (16) is connected to the annular flow equalization disk (6). The two ends of the flow guiding pipe (16) are respectively connected to the inner ring flow guiding hole (7) and the outer ring flow guiding hole (8).

6. The crop germination and sprouting equipment according to claim 5, characterized in that: The connection points between the guide pipe (16) and the inner ring guide hole (7) and the outer ring guide hole (8) are all located above the flap (9).

7. The crop germination and sprouting equipment according to claim 5, characterized in that: The central flow equalization plate (5) is uniformly provided with a first truncated tapered tube (17), and the annular flow equalization plate (6) is uniformly provided with a second truncated tapered tube (18). The small-diameter end of the first truncated tapered tube (17) is fixedly connected to the upper surface of the central flow equalization plate (5), and the first truncated tapered tube (17) is connected to the inner ring guide hole (7). The small-diameter end of the second truncated tapered tube (18) is fixedly connected to the upper surface of the annular flow equalization plate (6), and the second truncated tapered tube (18) is connected to the outer ring guide hole (8).

8. The crop germination and sprouting equipment according to claim 1, characterized in that: The exhaust grille (4) is provided in two sets, and the two sets of exhaust grilles (4) are respectively connected to the two sides of the outer wall of the germination box (1).

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