Automatic pollination device for corn hybridization

Abstract

The utility model relates to the technical field of corn cultivation equipment, in particular to an automatic pollination device for corn hybridization, which comprises a conveying pipe, a pollen feeding mechanism for feeding pollen into the conveying pipe, a pollen conveying mechanism for conveying pollen and a pollination mechanism for spraying the pollen on stamens, the powder feeding mechanism comprises a storage pipe, a powder conveying pipe, a material distributing block, a first shielding plate, a second shielding plate and a driving mechanism, the powder conveying pipe is communicated between the conveying pipe and the storage pipe, the first shielding plate, the material distributing block and the second shielding plate are sequentially arranged in the powder conveying pipe, the section of the first shielding plate is semicircular, the material distributing block is rotationally arranged in the powder conveying pipe, and the driving mechanism is arranged in the powder conveying pipe. A quantitative groove is formed in the material distributing block, a discharging groove corresponding to the quantitative groove is formed in the second shielding plate, and the execution end of the driving mechanism is connected with the material distributing block and used for driving the material distributing block to rotate. The pollination device has the advantages of low operation difficulty and high pollination efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of maize cultivation equipment, and in particular to an automatic pollination device for maize hybridization. Background Technology

[0002] Hybrid pollination of maize is a reproductive technique that artificially controls the genetic combination of maize plants. First, select male and female parent plants with superior traits. The pollination is performed when the female parent's silks emerge and the male parent's tassels shed pollen. During pollination, pollen from the male parent is collected and gently applied to the silks of the female parent. The male gametes in the pollen combine with the female gametes on the silks to form a zygote, which then develops into a seed. This process can break down the natural reproductive barriers between species, cultivating new varieties with the superior traits of both parents. It can effectively improve maize yield, disease resistance, and stress tolerance, and is of great significance in maize variety improvement and agricultural production.

[0003] Currently, a Chinese invention patent with publication number CN216874373U and publication date of July 5, 2022, proposes a maize hybrid pollinator, including a pollinating rod, a fixed shell fixedly connected to the top of the pollinating rod, a blower fixed to one end of the pollinating rod, and a powder collection box fixed to a fixed block. Several powder guiding tubes are connected through the top of the fixed shell, and the powder collection box is fixedly connected to the top of the powder guiding tubes. Fixed blocks are fixedly connected to the left and right sides of the bottom of the powder collection box. An L-shaped clamp is rotatably connected to one side of the fixed block, and the other side of the L-shaped clamp is engaged with the fixed shell. The left and right sides of the fixed shell have clamping holes that are adapted to the L-shaped clamp. A small motor is fixedly connected to one side of the fixed shell, and a rotating roller is fixedly connected to the output end of the small motor. Several powder outlet holes are opened on one side of the rotating roller, and the powder outlet holes are adapted to the powder guiding tubes.

[0004] In use, place the pollen in the pollen collection box, then press down the collection box. At the same time, the collection box drives the pollen guide tube fixed at the bottom to engage with the pollen outlet on the rotating roller. Then rotate the L-shaped clamp to engage it with the clamp hole on the fixed shell to ensure stability during collection. At this time, the pollen enters the pollen guide tube through the collection box and then enters the rotating roller. Then rotate the L-shaped clamp again to disengage it from the fixed shell. Then start the small motor. The output end of the small motor drives the rotating roller fixed to it to rotate. The pollen falls into the pollination rod through the pollen outlet. Then start the blower. The blower blows the pollen out of the pollination rod for pollination.

[0005] Regarding the aforementioned technologies, the inventors believe that pollination requires frequent operation of the pollen collection box, L-shaped lever, and small motor by the pollinator to achieve a single quantitative pollination, which is complex and results in low pollination efficiency. Utility Model Content

[0006] To improve pollination efficiency, this invention provides an automatic pollination device for hybrid maize.

[0007] This utility model provides an automatic pollination device for hybrid maize, which adopts the following technical solution:

[0008] An automatic pollination device for hybrid maize includes a conveying pipe, a pollination mechanism for applying pollen into the conveying pipe, a pollen conveying mechanism for conveying pollen, and a pollination mechanism for spraying pollen onto the stamens of the flower; the pollen conveying mechanism is located at one end of the conveying pipe, and the pollination mechanism is located at the other end of the conveying pipe.

[0009] The powder feeding mechanism includes a storage pipe, a powder conveying pipe, a material distribution block, a first baffle plate, a second baffle plate, and a driving mechanism. The powder conveying pipe connects the conveying pipe and the storage pipe. The first baffle plate, the material distribution block, and the second baffle plate are sequentially arranged inside the powder conveying pipe. The first baffle plate has a semi-circular cross-section. The material distribution block is rotatably arranged in the powder conveying pipe. A metering groove is formed on the material distribution block. A discharge groove corresponding to the metering groove is formed on the second baffle plate. The actuator of the driving mechanism is connected to the material distribution block and is used to drive the material distribution block to rotate.

[0010] By adopting the above technical solution, pollen is stored in a storage tube. When a fixed amount of pollen needs to be sprayed, the pollen in the storage tube flows into the pollen delivery tube under the action of gravity. Under the action of the second baffle, the pollen flows into the metering trough for temporary storage. The pollen capacity of the metering trough is fixed. Then, the drive mechanism drives the distributing block to rotate until it is aligned with the discharge trough. At this time, the first baffle blocks the end of the metering trough near the storage tube, and the pollen in the metering trough is discharged through the discharge trough and enters the delivery tube. Then, the high-pressure gas generated by the pollen delivery mechanism sprays out a fixed amount of pollen, which pollinates the plants under the action of the pollination mechanism. Due to the setting of the metering trough, a fixed amount of pollen can be obtained each time, and the fixed amount of pollen can be transported into the delivery tube simply by driving the distributing block to rotate, which reduces the operation difficulty for operators and improves the pollination efficiency.

[0011] Optionally, the drive mechanism includes a support plate, a rack, a gear, a rotating shaft, a push rod, a pressure rod, and an adjusting rod. The support plate is connected to the conveying pipe, the rack is slidably connected to the support plate, the push rod is fixedly connected to one end of the rack, one end of the pressure rod is rotatably connected to the support plate, one end of the adjusting rod is rotatably connected to the pressure rod, and the other end is rotatably connected to the push rod. The rotating shaft is coaxially and fixedly connected to the material distribution block, the gear is coaxially and fixedly connected to the rotating shaft, and the gear meshes with the rack.

[0012] By adopting the above technical solution, the pollinator can press the pressure rod, which, driven by the adjusting rod and push rod, causes the rack and support plate to slide relative to each other. At this time, the rack can drive the rotating shaft and the distributing block to rotate. The pollinator can control the quantitative delivery of pollen with their fingers while holding the delivery tube, which improves convenience.

[0013] Optionally, the drive mechanism further includes a spring plate, which is fixedly connected between the pressure rod and the delivery pipe.

[0014] By adopting the above technical solution, after the pollinator completes one pollen delivery, the spring plate can reset the pressure rod. At this time, the material distribution block is reset under the action of transmission, so that the pollen can be refilled into the metering trough. This reduces the operation difficulty for the pollinator and can effectively improve the pollination efficiency.

[0015] Optionally, the powder feeding mechanism further includes a filter screen disposed inside the storage tube and located at the end of the storage tube away from the powder conveying tube.

[0016] By adopting the above technical solution, when adding pollen to the storage tube, the filter screen can screen the pollen, remove impurities, and ensure pollen quality.

[0017] Optionally, the powder feeding mechanism further includes a sealing cap, which is threadedly connected to the end of the storage tube away from the powder conveying tube.

[0018] By adopting the above technical solution, the sealing cap can seal the storage tube, allowing the pollination device to pollinate the flower stamens at any angle, reducing the limitations imposed by the plant's growth on the pollination device during pollination.

[0019] Optionally, the storage tube is transparent.

[0020] By adopting the above technical solution, pollinators can observe the remaining amount of pollen through the storage tube, so that they can add pollen to the storage tube in a timely manner.

[0021] Optionally, the powder conveying mechanism includes a pressurizing fan and a switch button. The pressurizing fan is installed inside the conveying pipe, and the switch button is installed on the conveying pipe. The switch button is electrically connected to the pressurizing fan.

[0022] By adopting the above technical solution, after the pollinator transfers the pollen into the delivery pipe, the control switch button can be used to start the pressurizing fan, thereby causing the pollen to be discharged from the delivery pipe; then the control switch button can be used to stop the pressurizing fan, thus making it easier for the pollinator to transfer the pollen into the delivery pipe again.

[0023] Optionally, the pollination mechanism includes a pollination tube and a protective component. The pollination tube is connected to the conveying tube, and the protective component includes a protective cover. The protective cover is disposed at the end of the conveying tube and covers the pollination tube.

[0024] By adopting the above technical solution, a protective cover can be placed on the plant during the pollination process. During the pollination process, the airflow is protected by the protective cover and is not easy to escape, so that more pollen can adhere to the pistil and improve the utilization rate of pollen.

[0025] Optionally, the protective assembly further includes a pad that is fixedly connected to the end of the protective cover away from the delivery pipe.

[0026] By adopting the above technical solution, when the protective cover is placed on the plant, it may touch other branches. At this time, the soft pad can be used to contact the branches, reducing the probability of the branches being cut by the protective cover and protecting the plant.

[0027] In summary, this utility model has at least one of the following beneficial technical effects:

[0028] 1. The drive mechanism, through the setting of the pollination mechanism, allows pollinators to easily deliver a fixed amount of pollen to the delivery tube each time, reducing the difficulty of operation for operators and improving pollination efficiency.

[0029] 2. By setting up the protective components, this device can not only control the airflow direction, allowing more pollen to adhere to the pistil and improving pollen utilization, but also reduce the probability of the support branches being cut by the protective cover, thus protecting the plant. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0031] Figure 2 This is a cross-sectional schematic diagram of the powder feeding mechanism and the powder conveying mechanism in this embodiment;

[0032] Figure 3 This is a schematic diagram of the internal structure of the delivery pipe in this embodiment;

[0033] Figure 4 This is a cross-sectional view of the powder application mechanism in this embodiment;

[0034] Figure 5 This is a cross-sectional view of the delivery pipe and protective cover in this embodiment.

[0035] Explanation of reference numerals in the attached drawings: 100, conveying pipe; 200, powder feeding mechanism; 210, storage pipe; 220, powder conveying pipe; 230, material distribution block; 231, metering trough; 240, first baffle plate; 250, second baffle plate; 251, discharge trough; 260, drive mechanism; 261, support plate; 262, rack; 263, gear; 264, rotating shaft; 265, push rod; 266, pressure rod; 267, adjusting rod; 268, spring plate; 270, filter screen; 280, sealing cover; 300, powder conveying mechanism; 310, pressurizing fan; 320, switch button; 400, powder receiving mechanism; 410, powder receiving pipe; 420, protective component; 421, protective cover; 422, soft pad. Detailed Implementation

[0036] The following combination Figures 1 to 5 The present invention will be described in further detail below.

[0037] This embodiment discloses an automatic pollination device for maize hybridization.

[0038] Reference Figure 1 and Figure 2 An automatic pollination device for hybrid maize includes a conveying pipe 100, a pollen-applying mechanism 200 for applying pollen into the conveying pipe 100, a pollen-transporting mechanism 300 for conveying pollen, and a pollination mechanism 400 for spraying pollen onto the flower stamens. The pollen-transporting mechanism 300 is located at one end of the conveying pipe 100, the pollination mechanism 400 is located at the other end of the conveying pipe 100, and the pollen-applying mechanism 200 is located in the middle of the conveying pipe 100. During pollination, the pollen-applying mechanism 200 delivers a fixed amount of pollen into the conveying pipe 100, and then the pollen-transporting mechanism 300 delivers the pollen to the pollination mechanism 400, whereby the pollen is sprayed onto the flower stamens, completing the pollination process.

[0039] Reference Figures 2 to 4 The pollen feeding mechanism 200 includes a storage tube 210, a pollen conveying tube 220, a distributing block 230, a first baffle plate 240, a second baffle plate 250, a filter screen 270, a sealing cap 280, and a drive mechanism 260 for driving the distributing block 230 to rotate. The pollen conveying tube 220 connects the conveying tube 100 and the storage tube 210. The storage tube 210 is made of a transparent material, such as glass, so that pollinators can observe the amount of pollen remaining in the storage tube 210. The filter screen 270 is disposed inside the storage tube 210 and located at the end of the storage tube 210 away from the pollen conveying tube 220. The sealing cap 280 is threadedly connected to the end of the storage tube 210 away from the pollen conveying tube 220.

[0040] When pollen is added to the storage tube 210, the filter screen 270 can screen the pollen, remove impurities, and ensure pollen quality. After the pollen is added, the storage tube 210 is sealed with the sealing cap 280, so that the pollination device will not spill pollen when used at any angle.

[0041] Reference Figure 3 and Figure 4 The first baffle plate 240, the material distribution block 230, and the second baffle plate 250 are sequentially arranged inside the powder conveying pipe 220. The first baffle plate 240 is located at one end near the storage pipe 210, and the cross-section of the first baffle plate 240 is semi-circular. The material distribution block 230 is rotatably arranged in the powder conveying pipe 220. A metering groove 231 is provided on the material distribution block 230, and a discharge groove 251 corresponding to the metering groove 231 is provided on the second baffle plate 250.

[0042] Reference Figure 3 and Figure 4 The drive mechanism 260 includes a support plate 261, a rack 262, a gear 263, a rotating shaft 264, a push rod 265, a pressure rod 266, a spring plate 268, and an adjusting rod 267. The support plate 261 is connected to the conveying pipe 100. One end of the rack 262 is slidably connected to the support plate 261, and the sliding direction is parallel to the length direction of the conveying pipe 100. The push rod 265 is fixedly connected to the end of the rack 262 away from the support plate 261. One end of the pressure rod 266 is hinged to the support plate 261. One end of the adjusting rod 267 is hinged to the middle of the pressure rod 266, and the other end is hinged to the push rod 265. One end of the rotating shaft 264 is coaxially fixedly connected to the material distribution block 230, and the other end passes through the second baffle plate 250 and is coaxially fixedly connected to the gear 263. The gear 263 meshes with the rack 262. One end of the spring sheet 268 is fixedly connected to the pressure rod 266, and the other end is fixedly connected to the conveying pipe 100. The spring sheet 268 is a compression spring sheet 268.

[0043] In the initial state, the spring plate 268 is in the open state, and the metering groove 231 is connected to the storage tube 210, allowing pollen in the storage tube 210 to flow into the metering groove 231. When it is necessary to meter pollen to be delivered into the delivery tube 100, the pollinator presses the pressure rod 266, and the spring plate 268 is compressed by the pressure rod 266. At this time, driven by the adjusting rod 267 and the push rod 265, the rack 262 slides away from the support plate 261. The rack 262 drives the material distribution block 230 to rotate through the gear 263 and the rotating shaft 264. When the pressure rod 266 is pressed to the limit position, the metering groove 231 is no longer connected to the storage tube 210, but is aligned with the discharge groove 251, and the pollen in the metering groove 231 can flow into the delivery tube 100 through the discharge groove 251. When the pollinator releases the pressure rod 266, the material distribution block 230 resets under the elastic force of the spring plate 268, so that the metering trough 231 is connected to the storage tube 210 again.

[0044] Reference Figure 2 The pollen conveying mechanism 300 includes a pressurizing fan 310 and a switch button 320. The pressurizing fan 310 is installed inside the conveying pipe 100. The air inlet of the pressurizing fan 310 is connected to the atmosphere, and the exhaust end is connected to the conveying pipe 100. The switch button 320 is installed on the conveying pipe 100 and is electrically connected to the pressurizing fan 310. The pollinator can control the start and stop of the pressurizing fan 310 through the switch button 320.

[0045] Reference Figure 5 The pollination mechanism 400 includes a pollination tube 410 and a protective component 420. One end of the pollination tube 410 is connected to the conveying pipe 100. Multiple pollination tubes 410 are provided and are evenly distributed at the end of the conveying pipe 100. The protective component 420 includes a protective cover 421 and a soft pad 422. The protective cover 421 is disposed at the end of the conveying pipe 100, and the soft pad 422 is fixedly connected to the end of the protective cover 421 away from the conveying pipe 100.

[0046] During pollination, the protective cover 421 is first placed over the plant containing the pollen. After the pollen flows into the delivery pipe 100, the pollinator starts the pressurized fan 310 via the switch button 320. The pollen is then blown onto the pollination tubes 410 and evenly sprayed onto the flower stamens. During pollination, the airflow is protected by the protective cover 421, preventing it from escaping and allowing more pollen to adhere to the flower stamens, thus improving pollen utilization. Furthermore, due to the soft pad 422, when the protective cover 421 is placed over the plant containing the pollen, it may touch other branches. The soft pad 422 helps to contact the branches, reducing the probability of the branches being cut by the protective cover 421 and protecting the plant.

[0047] The implementation principle of the automatic pollination device for hybrid maize in this embodiment is as follows:

[0048] Before pollination, pollen is added to the storage tube 210. When adding pollen to the storage tube 210, the filter screen 270 can screen the pollen, remove impurities, and ensure pollen quality. After adding pollen, the storage tube 210 is sealed with the sealing cap 280 so that the pollination device can be used at any angle.

[0049] During pollination, the storage tube 210 is first placed vertically, allowing the pollen in it to flow into the metering trough 231. Then, the pollinator presses the pressure lever 266. Driven by the adjusting rod 267 and the push rod 265, the rack 262 slides away from the support plate 261. At this time, the rack 262, through the gear 263 and the rotating shaft 264, drives the distributing block 230 to rotate. When the pressure lever 266 is pressed to its limit, the metering trough 231 aligns with the discharge trough 251, allowing the pollen in the metering trough 231 to flow into the conveying pipe 100. The pollinator can then release the pressure lever 266, resetting the distributing block 230 to its original position, ready for the next pollination.

[0050] Afterwards, the pollinator places the protective cover 421 over the plant where the pollen is located and starts the pressurized fan 310 through the switch button 320. At this time, the pollen will be blown to the pollination tube 410 and evenly sprayed onto the pistil through the evenly distributed pollination tube 410 to complete the pollination.

[0051] Since the pollinator can control the drive mechanism 200 with one hand, pollen can flow into the delivery pipe 100 in a measured amount, which reduces the difficulty of operation for the operator and improves the pollination efficiency.

[0052] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A corn hybrid automatic pollination device, characterized by: The device comprises a conveying pipe (100), a powder feeding mechanism (200) for feeding powder into the conveying pipe (100), a powder conveying mechanism (300) for conveying the powder, and a pollination mechanism (400) for spraying the powder on the pistil; the powder conveying mechanism (300) is arranged at one end of the conveying pipe (100), and the pollination mechanism (400) is arranged at the other end of the conveying pipe (100). The powder feeding mechanism (200) comprises a storage pipe (210), a powder conveying pipe (220), a distribution block (230), a first baffle (240), a second baffle (250), and a driving mechanism (260); the powder conveying pipe (220) is connected between the conveying pipe (100) and the storage pipe (210); the first baffle (240), the distribution block (230), and the second baffle (250) are arranged in the powder conveying pipe (220) in sequence; the first baffle (240) is arranged in a semicircular cross section; the distribution block (230) is arranged in the powder conveying pipe (220) in rotation; the distribution block (230) is provided with a quantitative groove (231); the second baffle (250) is provided with a discharge groove (251) corresponding to the quantitative groove (231); and the driving mechanism (260) is connected to the distribution block (230) at an execution end for driving the distribution block (230) to rotate.

2. The corn hybrid self-pollinating device of claim 1, wherein: The driving mechanism (260) comprises a support plate (261), a rack (262), a gear (263), a rotating shaft (264), a push rod (265), a pressing rod (266), and an adjusting rod (267); the support plate (261) is connected to the conveying pipe (100); the rack (262) is slidingly connected to the support plate (261); one end of the push rod (265) is fixedly connected to the rack (262); one end of the pressing rod (266) is rotatably connected to the support plate (261); one end of the adjusting rod (267) is rotatably connected to the pressing rod (266), and the other end is rotatably connected to the push rod (265); the rotating shaft (264) is coaxially fixedly connected to the distribution block (230); the gear (263) is coaxially fixedly connected to the rotating shaft (264); and the gear (263) is engaged with the rack (262).

3. The corn hybrid self-pollinating device of claim 2, wherein: The driving mechanism (260) further comprises a spring sheet (268) fixedly connected between the pressing rod (266) and the conveying pipe (100).

4. The corn hybrid self-pollinating device of any of claims 1-3, wherein: The powder feeding mechanism (200) further comprises a filter screen (270) arranged in the storage pipe (210) at an end thereof away from the powder conveying pipe (220).

5. The corn hybrid self-pollinating device of any of claims 1-3, wherein: The powder feeding mechanism (200) further comprises a sealing cover (280) threadedly connected to an end of the storage pipe (210) away from the powder conveying pipe (220).

6. The corn hybrid self-pollinating device of any of claims 1-3, wherein: The storage pipe (210) is transparent.

7. The corn hybrid self-pollinating device of any of claims 1-3, wherein: The powder conveying mechanism (300) comprises a pressurized fan (310) and a switch button (320), the pressurized fan (310) is installed inside the conveying pipe (100), the switch button (320) is installed on the conveying pipe (100), and the switch button (320) is electrically connected with the pressurized fan (310).

8. The corn hybrid self-pollinating device of any of claims 1-3, wherein: The pollination mechanism (400) comprises a pollination pipe (410) and a protection assembly (420), the pollination pipe (410) is communicated with the conveying pipe (100), the protection assembly (420) comprises a protection cover (421), the protection cover (421) is arranged at the end of the conveying pipe (100), and the protection cover (421) covers the pollination pipe (410) outside.

9. The corn hybrid self-pollinating device of claim 8, wherein: The protection assembly (420) further comprises a soft pad (422), and the soft pad (422) is fixedly connected to the end of the protection cover (421) away from the conveying pipe (100).

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