Hybrid rice breeding greenhouse

Abstract

The utility model discloses a greenhouse for hybrid rice breeding relates to hybrid rice breeding technical field, including greenhouse main part, the greenhouse main part top fixed mounting has the light top cover, the inside of greenhouse main part top is provided with the curtain, the upper side of four sides inner wall of greenhouse main part is all fixed mounting has the electric roller shutter, the powder room, the powder room fixed mounting is in the opening at greenhouse main part one side, the powder room top inner wall fixed mounting has the L -shaped pipe, a plurality of gas outlets of L -shaped pipe bottom all fixed mounting has the shower nozzle. The utility model discloses, through setting up independent powder room, through " atomization purging + directional exhaust " forms closed loop powder removal: the atomization airflow that air pump drives the shower nozzle sprays can cover human body and tool surface comprehensively, effectively peeling off the attached pollen, then through the fan set cooperation exhaust duct will suspended pollen fast exhaust, avoid the hybrid of breeding material mixed because of manual operation, significantly improve the purity of parent and hybrid.

Description

Technical Field

[0001] This utility model relates to the field of hybrid rice breeding technology, and in particular to a greenhouse for hybrid rice breeding. Background Technology

[0002] Hybrid rice breeding is a core link in ensuring food security and improving rice yield and stress resistance. As a controlled environment for cultivation, the design rationality of breeding greenhouses directly determines the purity, trait stability and breeding efficiency of breeding materials. Currently, existing hybrid rice breeding greenhouses face the following key technical challenges in practical applications, which seriously restrict the quality and progress of breeding.

[0003] Hybrid rice breeding requires strict isolation of different lines (paternal, maternal, and control lines) to prevent cross-pollination by exogenous pollen (such as pollen from surrounding conventional rice and gramineous crops) that could lead to a decrease in seed purity. However, existing greenhouses lack targeted pollen removal designs: exogenous pollen carried by staff clothing and tools can easily be brought into the greenhouse during the process, potentially causing sample invalidation. In addition, to ensure sufficient light and save energy, existing greenhouses are generally designed with light-transmitting sides. However, this allows light to leak out at night, attracting flying insects (such as bees and moths) carrying exogenous pollen to enter through structural gaps, further exacerbating the risk of pollen contamination. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a greenhouse for hybrid rice breeding, which solves the problem of insufficient isolation between external pollen and hybrid rice inside the greenhouse, leading to sample contamination by external pollen.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A greenhouse for hybrid rice breeding includes a greenhouse body, a light-transmitting roof fixedly installed on the top of the greenhouse body, a curtain installed on the inner side of the top of the greenhouse body, and an electric roller shutter fixedly installed on the upper side of the inner walls of the four sides of the greenhouse body.

[0007] The dust removal chamber is fixedly installed at the opening on one side of the main body of the greenhouse. A U-shaped pipe is fixedly installed on the inner wall of the top of the dust removal chamber, and multiple air outlets at the bottom of the U-shaped pipe are fixedly equipped with nozzles.

[0008] A drive assembly is installed between the greenhouse body and the curtain, and is used to drive the curtain to rotate;

[0009] An exhaust assembly is installed on the dust removal chamber and is used to exhaust dust from inside the dust removal chamber.

[0010] Preferably, the driving component includes:

[0011] Two drive rollers are respectively rotatably installed on both sides of the top of the greenhouse body. The curtain is sleeved between the outer walls of the two drive rollers. A motor is fixedly installed on the top of the greenhouse body. The output end of the motor is fixedly connected to the shaft end of one of the drive rollers. Teeth are opened on the middle outer wall of the two drive rollers. A flexible toothed rack is fixedly installed around the inner wall of the curtain. The flexible toothed rack meshes with the two teeth.

[0012] Preferably, the exhaust assembly includes:

[0013] Two exhaust ducts are provided, which are installed through and fixedly mounted on the lower side walls of the dust removal chamber. A fan unit is fixedly installed on the inner wall of each of the two exhaust ducts. A cover plate is rotatably installed on the inner wall of each side of the dust removal chamber. The two cover plates cover the ports of the two exhaust ducts respectively. A mesh plate is fixedly installed at both ports of the two exhaust ducts.

[0014] Preferably, one continuous half of the curtain is a transparent film, and the other half of the curtain is an opaque film.

[0015] Preferably, a controller is fixedly installed on the outer wall of the main body of the greenhouse, an ambient light sensor is fixedly installed on the outer wall of the main body of the greenhouse, the motor and the ambient light sensor are both electrically connected to the controller, and the electric roller shutter is electrically connected to the controller.

[0016] Preferably, an air pump is fixedly installed on the inner wall of the dust removal chamber, and the output end of the air pump is connected to the input end of the U-shaped pipe through a pipe. Sealed doors are provided on both sides of the dust removal chamber, and one of the sealed doors is aligned with the opening on one side of the main body of the greenhouse.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting up an independent pollen removal chamber, a closed-loop pollen removal system is formed through "atomized blowing + directional exhaust": the atomized airflow driven by the air pump can fully cover the surface of the human body and tools, effectively removing the attached pollen. Then, the suspended pollen is quickly discharged through the fan unit and exhaust pipe, avoiding the mixing of breeding materials caused by manual operation, and significantly improving the purity of parents and hybrids. During the day, a transparent film ensures sufficient light to meet the photosynthetic needs of rice. At night, the double shielding of the opaque film and electric roller shutter blocks the leakage of light, reduces the number of flying insects, and avoids the contamination of breeding materials. Attached Figure Description

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the combined structure of the greenhouse body and the curtain in this utility model;

[0022] Figure 3 This is a schematic diagram of the regional structure of the main body of the greenhouse in this utility model;

[0023] Figure 4 This is a cross-sectional view of the combined structure of the dust removal chamber and the exhaust duct in this utility model;

[0024] Figure 5 This is a cross-sectional view of the curtain in this utility model.

[0025] Legend: 1. Greenhouse main body; 2. Translucent roof; 3. Controller; 4. Ambient light sensor; 5. Dust removal chamber; 6. Sealed door; 7. U-shaped pipe; 8. Sprayer head; 9. Cover plate; 10. Air pump; 11. Fan unit; 12. Mesh panel; 13. Exhaust duct; 14. Curtain; 15. Motor; 16. Drive roller; 17. Toothed teeth; 18. Flexible toothed rack; 19. Electric roller shutter. Detailed Implementation

[0026] This application provides a greenhouse for hybrid rice breeding, which effectively solves the problem of insufficient isolation between external pollen and hybrid rice inside the greenhouse, leading to sample contamination by external pollen.

[0027] Example

[0028] like Figure 1 - Figure 5 As shown, the technical solution in this application embodiment effectively solves the technical problem of insufficient isolation between external pollen and hybrid rice in the greenhouse, leading to sample contamination by external pollen. The overall idea is as follows:

[0029] In view of the problems existing in the prior art, this utility model provides a greenhouse for hybrid rice breeding, including a greenhouse body 1, a light-transmitting top cover 2 fixedly installed on the top of the greenhouse body 1, a curtain 14 set on the inner side of the top of the greenhouse body 1, and an electric roller shutter 19 fixedly installed on the upper side of the inner walls of the four sides of the greenhouse body 1.

[0030] The dust removal chamber 5 is fixedly installed at the opening on one side of the main body of the greenhouse 1. A U-shaped pipe 7 is fixedly installed on the inner wall of the top of the dust removal chamber 5. Multiple air outlets at the bottom of the U-shaped pipe 7 are fixedly equipped with nozzles 8.

[0031] A drive assembly is installed between the greenhouse body 1 and the curtain 14 and is used to drive the curtain 14 to rotate.

[0032] An exhaust assembly is installed on the dust removal chamber 5 and is used to discharge the dust inside the dust removal chamber 5.

[0033] Furthermore, the driving components include:

[0034] Two drive rollers 16 are rotatably installed on both sides of the top of the greenhouse body 1. A curtain 14 is fitted between the outer walls of the two drive rollers 16. A motor 15 is fixedly installed on the top of the greenhouse body 1. The output end of the motor 15 is fixedly connected to the shaft end of one of the drive rollers 16. Teeth 17 are provided on the outer wall of the middle part of the two drive rollers 16. A flexible toothed rack 18 is fixedly installed around the inner wall of the curtain 14. The flexible toothed rack 18 meshes with the two teeth 17.

[0035] Furthermore, the exhaust assembly includes:

[0036] Two exhaust ducts 13 are installed through and fixedly on the lower two side walls of the dust removal chamber 5. A fan unit 11 is fixedly installed on the inner wall of each of the two exhaust ducts 13. Cover plates 9 are rotatably installed on the inner walls of both sides of the dust removal chamber 5, and the two cover plates 9 cover the ports of the two exhaust ducts 13 respectively.

[0037] Furthermore, mesh panels 12 are fixedly installed at both ends of the two exhaust ducts 13.

[0038] Furthermore, one continuous half of the screen 14 is a transparent film, and the other half of the screen 14 is an opaque film.

[0039] Furthermore, a controller 3 is fixedly installed on the outer wall of the greenhouse body 1, and an ambient light sensor 4 is fixedly installed on the outer wall of the greenhouse body 1. Both the motor 15 and the ambient light sensor 4 are electrically connected to the controller 3.

[0040] Furthermore, an air pump 10 is fixedly installed on the inner wall of the dust removal chamber 5, and the output end of the air pump 10 is connected to the input end of the U-shaped pipe 7 through a pipe.

[0041] Furthermore, sealing doors 6 are provided on both sides of the de-dust chamber 5, with one of the sealing doors 6 aligned with the opening on one side of the greenhouse body 1.

[0042] in:

[0043] Main Frame 1: Constructed using hot-dip galvanized rectangular steel pipes (model 200×100mm) with a wall thickness of 3mm. The overall dimensions are set at 30m×10m×4.5m (length×width×eave height). The frame surface is treated with anti-corrosion coating (zinc layer thickness ≥80μm) to ensure wind resistance (wind speed ≤12) and snow resistance (load ≥0.5kN / ㎡). It is suitable for breeding scenarios with heavy rainfall in the south and heavy snow in the north. 1cm thick double-layer hollow polycarbonate panels are fixed on all four sides with bolts to facilitate light transmission.

[0044] Light-transmitting roof 2: Fixedly installed on the top of the main body of the greenhouse 1, using 8mm thick double-layer hollow polycarbonate board (PC board), with a light transmittance of ≥90%, and has anti-ultraviolet aging, heat insulation and heat preservation functions, with a thermal conductivity of ≤0.2W / m・K, to avoid scorching plants by strong sunlight in summer and heat loss in winter;

[0045] Controller 3: A PLC controller (Siemens S7-200SMART) is used and is fixedly installed on the outer wall of the main body of the greenhouse 1. It has data acquisition, logic judgment and equipment control functions.

[0046] Ambient light sensor 4: A digital light sensor (model BH1750, detection range 0-65535lx, accuracy ±20%) is fixedly installed on the outer wall of the main body of the greenhouse 1 (in an unobstructed area). Its signal output terminal is electrically connected to the controller 3, which can collect external light intensity data in real time and transmit it to the controller 3.

[0047] Dust removal chamber 5 and sealing door 6: Dust removal chamber 5 is a rectangular steel structure (2m×1.5m×2.2m), which is fixedly installed at the north opening of the main body of greenhouse 1 (connected to the inside of the greenhouse). Both sides of dust removal chamber 5 are equipped with double-leaf opening sealing doors 6 (the door frame is equipped with EPDM rubber sealing strips, with a sealing rating of IP65). The inner sealing door 6 is aligned with the north opening of the main body of greenhouse 1, and the outer sealing door 6 faces the outside, forming a "double door buffer" structure.

[0048] The U-shaped tube 7, the atomizing nozzle 8, and the vortex air pump 10:

[0049] The U-shaped pipe 7 is made of PVC (50mm in diameter) and is fixed in the shape of a "U" to the inner wall of the top of the dust removal chamber 5 (2m from the ground). Its input end is connected to the output end of the air pump 10 through a pipe.

[0050] Nozzle 8 is a fan-shaped atomizing nozzle (0.8mm in diameter), evenly distributed at the bottom of the U-shaped tube 7 (15cm apart), which can spray out atomized airflow of 0.1 to 0.3mm to achieve comprehensive blowing of the human body;

[0051] The air pump 10 is fixedly installed on the inner wall of the dust removal chamber 5 (model RB-750, air pressure 0.3MPa, air volume 750m³ / h). Its input end is connected to the outside through a PVC pipe (diameter 32mm). An 80-mesh insect-proof pollen screen is installed at the pipe end (to prevent foreign pollen from entering through the pipe).

[0052] Exhaust components:

[0053] Includes 2 exhaust ducts 13, 2 sets of fan units 11, 2 cover plates 9, and 4 mesh plates 12;

[0054] The cover plate 9 is made of aluminum alloy (120mm×120mm in size). It is installed on the inner wall of the dust removal chamber 5 by hinge rotation. It can completely cover the inner port of the exhaust duct 13. The cover plate 9 has a pin locking structure on the side. When not in use, it is locked to ensure the dust removal chamber is sealed.

[0055] The fan unit 11 is a centrifugal fan (each group contains 2 fans, model CF-150, single unit air volume 1500m³ / h), which is fixedly installed on the inner wall of the exhaust duct 13. The fan unit 11 is electrically connected to the controller 3 and can discharge the suspended pollen in the dust removal chamber to the outside.

[0056] The mesh panel 12 is a 40-mesh stainless steel insect-proof mesh (120mm×120mm), which is fixedly installed on the inner and outer sides of the exhaust duct 13.

[0057] The exhaust duct 13 is made of PVC (100mm in diameter), symmetrically runs through and is fixedly installed on both sides of the lower part of the dust removal chamber 5 (0.5m from the ground).

[0058] Screen 14: The overall size matches the light-transmitting top cover 2 (30m×10m). It is made of high-strength nylon substrate, with one half of the continuous area laminated with a 0.1mm thick polycarbonate transparent film (light transmittance ≥85%) and the other half laminated with a 0.1mm thick black light-blocking film (light blocking rate ≥99%). A flexible toothed strip 18 made of nylon material (module 1.5, tooth pitch 4.71mm) is fixedly sewn around the inner wall of the screen 14 to ensure precise meshing with the teeth 17 of the drive roller 16.

[0059] Driver components:

[0060] Includes 2 drive rollers 16 and 1 stepper motor 15;

[0061] The drive roller 16 is made of stainless steel (50mm in diameter and 10.2m in length). Both ends are rotatably mounted on the crossbeams on both sides of the top of the greenhouse body 1 via deep groove ball bearings (model 6205). The outer wall of the middle part of the roller body is machined with teeth 17 that are compatible with the flexible rack 18. The motor 15 (model 57HS22, torque 2.2N・m) is fixedly mounted on the north side crossbeam at the top of the greenhouse body 1. Its output end is fixedly connected to the shaft end of the north drive roller 16 via a coupling. The motor 15 is electrically connected to the controller 3. It can drive the curtain 14 to rotate around the two drive rollers 16 by forward and reverse rotation, realizing the switching between "transparent film coverage" and "opaque film coverage".

[0062] Electric roller blind 19: There are 4 sets in total, which are fixedly installed on the upper side of the inner wall of the four sides of the main body of the greenhouse (3.8m from the ground). The roller blind is made of PVC anti-aging shading film (shading rate ≥95%). Each set of roller blind is equipped with an independent geared motor (power 0.75kW). The motor is connected to the controller 3 by telecommunications, and can be opened and closed synchronously or individually to block the light-transmitting areas on the four sides of the greenhouse.

[0063] Linkage logic: The preset light intensity threshold is 500 lx (corresponding to dusk / dawn light level). When the ambient light sensor 4 detects an external brightness ≥ 500 lx, the controller 3 controls the electric roller blind 19 to retract and the motor 15 drives the curtain 14 to rotate to the north side and fold it in half (the transparent film covers the light-transmitting top cover 2). When the external brightness is detected to be < 500 lx, the controller 3 first controls the four sets of electric roller blinds 19 to be lowered synchronously (blocking the light-transmitting areas on all four sides of the greenhouse), and then controls the motor 15 to reverse and drive the curtain 14 to rotate to fully cover the light-transmitting top cover 2 (the opaque film faces down).

[0064] Working principle:

[0065] The first step is to have the opening of the greenhouse facing north to prevent the de-dust chamber 5 from blocking the light on one side of the main body of the greenhouse 1. During the day, the curtain 14 is folded in half and rotated to the north side to avoid blocking the light passing through the light-transmitting top cover 2, so that the hybrid rice seedlings inside the main body of the greenhouse can get enough light during the day.

[0066] The second step involves monitoring the external environment using an ambient light sensor 4 and transmitting the data signal to a controller 3. When the ambient light level is below a threshold (i.e., it gets dark), the controller 3 controls multiple electric roller shutters 19 to open, blocking the light-transmitting panels on all four sides of the greenhouse body 1. Then, the controller 3 controls the motor 15 to start, causing one of the drive rollers 16 to rotate. Under the meshing transmission of the flexible rack 18 and teeth 17, the curtain 14 begins to rotate. When the opaque part of the curtain 14 completely covers the top of the greenhouse body 1, it stops, blocking the light-transmitting part of the light-transmitting top cover 2. This prevents the light from the greenhouse body 1 at night from attracting flying insects to enter through the structural gaps of the greenhouse body 1, making it difficult for flying insects carrying other pollen to pollinate the hybrid rice inside the greenhouse body 1.

[0067] Thirdly, when staff need to enter the main body of the greenhouse 1, they can first enter the de-pollination chamber 5 by opening the outer sealed door 6 and then closing the sealed door 6. Then, by removing the pin on the cover plate 9 and opening the cover plate 9, the exhaust duct 13 is connected to the outside. The input end of the air pump 10 is connected to the outer diameter through the pipe. A filter screen that can filter pollen is fixedly installed at the pipe end to prevent pollen from entering the de-pollination chamber 5 through the pipe. Then, by starting the air pump 10, the air pump 10 delivers air to the U-shaped pipe 7 and sprays it from multiple nozzles 8, which can blow the human body surface from top to bottom and blow away the pollen attached to the human body surface, preventing staff from carrying pollen from the outer diameter into the main body of the greenhouse 1. During the blowing process, by starting the fan unit 11 in the exhaust duct 13, the pollen suspended in the de-pollination chamber 5 can be discharged to the outside. After the blowing is completed, the inner sealed door 6 can be opened to enter the main body of the greenhouse 1.

[0068] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A greenhouse for hybrid rice breeding, characterized in that, include: The greenhouse body (1) is fixedly equipped with a light-transmitting top cover (2) and a curtain (14) is provided on the inner side of the top of the greenhouse body (1). Electric roller shutters (19) are fixedly installed on the upper side of the inner walls of the four sides of the greenhouse body (1). The dust removal chamber (5) is fixedly installed at the opening on one side of the greenhouse body (1). A U-shaped pipe (7) is fixedly installed on the inner wall of the top of the dust removal chamber (5). Multiple air outlets at the bottom of the U-shaped pipe (7) are fixedly equipped with nozzles (8). A drive assembly is installed between the greenhouse body (1) and the curtain (14) and is used to drive the curtain (14) to rotate; An exhaust assembly is installed on the dust removal chamber (5) and is used to exhaust the dust inside the dust removal chamber (5).

2. The greenhouse for hybrid rice breeding as described in claim 1, characterized in that, The driving component includes: Two drive rollers (16) are respectively rotatably installed on both sides of the top of the greenhouse body (1). The curtain (14) is sleeved between the outer walls of the two drive rollers (16). A motor (15) is fixedly installed on the top of the greenhouse body (1). The output end of the motor (15) is fixedly connected to the shaft end of one of the drive rollers (16). Teeth (17) are opened on the middle outer wall of the two drive rollers (16). A flexible toothed rack (18) is fixedly installed around the inner wall of the curtain (14). The flexible toothed rack (18) meshes with the two teeth (17).

3. The greenhouse for hybrid rice breeding as described in claim 1, characterized in that, The exhaust assembly includes: Two exhaust ducts (13) are installed through and fixedly installed on the lower two side walls of the dust removal chamber (5). A fan unit (11) is fixedly installed on the inner wall of each of the two exhaust ducts (13). A cover plate (9) is rotatably installed on the inner wall of each side of the dust removal chamber (5). The two cover plates (9) cover the ports of the two exhaust ducts (13) respectively.

4. A greenhouse for hybrid rice breeding as described in claim 3, characterized in that: Mesh plates (12) are fixedly installed at both ends of the two exhaust ducts (13).

5. A greenhouse for hybrid rice breeding as described in claim 1, characterized in that: One continuous half of the curtain (14) is a transparent film, and the other half of the curtain (14) is an opaque film.

6. A greenhouse for hybrid rice breeding as described in claim 2, characterized in that: A controller (3) is fixedly installed on the outer wall of the main body (1) of the greenhouse, and an ambient light sensor (4) is fixedly installed on the outer wall of the main body (1). The motor (15) and the ambient light sensor (4) are both electrically connected to the controller (3).

7. A greenhouse for hybrid rice breeding as described in claim 1, characterized in that: An air pump (10) is fixedly installed on the inner wall of the dust removal chamber (5), and the output end of the air pump (10) is connected to the input end of the U-shaped pipe (7) through a pipe.

8. A greenhouse for hybrid rice breeding as described in claim 1, characterized in that: Both sides of the dust removal chamber (5) are provided with sealing doors (6), one of which is aligned with the opening on one side of the greenhouse body (1).

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