Pollination device for corn breeding

Abstract

The invention provides a pollinator for corn breeding. The pollinator for corn breeding comprises a collecting barrel, a pollen collecting mechanism is arranged on one side of the collecting barrel, a negative pressure mechanism is arranged on the side, away from the pollen collecting mechanism, of the collecting barrel, a pollination mechanism is arranged at the bottom of the collecting barrel, a blocking mechanism is arranged on the pollination mechanism, and a vibrating mechanism is arranged on the pollination mechanism; the negative pressure mechanism is used for generating negative pressure in the collecting barrel; the pollen collecting mechanism is used for collecting pollen through negative pressure generated in the collecting barrel and collecting the pollen into the collecting barrel; the pollination mechanism is used for spilling pollen through the vibration mechanism and the blocking mechanism. The pollinator for corn breeding, provided by the invention, has the advantages of practicability, convenience, high pollen utilization rate and relatively uniform pollination.

Description

Technical Field

[0001] This invention relates to the field of maize breeding technology, and in particular to a pollinator for maize breeding. Background Technology

[0002] As a globally important food, feed, and industrial raw material crop, maize breeding is a crucial step in improving yield, quality, and stress resistance. In maize hybridization breeding, artificial pollination is a core technology for controlling parental self-pollination, hybrid combinations, and ensuring seed purity. This technology requires precise and uniform pollination of pollen from a specific paternal parent onto the silks of the target maternal parent's ear, while strictly avoiding pollen contamination from different germplasms (including non-target paternal parents and the maternal parent itself) to ensure the achievement of breeding objectives and seed genetic purity.

[0003] Traditional artificial pollination mainly relies on manually shaking the male tassel (spiky tassel) to collect pollen into paper bags or containers, and then manually pouring the pollen onto the silks of the female tassel. This method is extremely labor-intensive, inefficient, and has significant drawbacks: High risk of pollen contamination: During the collection and release of pollen, it is very easy to introduce non-target pollen (such as pollen blown by the wind, pollen carried by the operator, or pollen from other nearby plants), leading to pollination failure or mixed offspring.

[0004] Low pollen utilization: Pollen collected by manual shaking is often mixed with a large number of anther fragments, glumes and other impurities. Fine pollen is easily scattered and lost, and it is difficult to guarantee the amount that actually falls onto the filaments.

[0005] Uneven pollination: Relying on manually pouring or shaking bagged pollen for pollination makes it difficult to ensure that the pollen evenly covers the entire female ear silk group, affecting the pollination and seed setting rate, and may lead to inconsistent grain development in the ear.

[0006] Therefore, it is necessary to provide a new pollinator for maize breeding to solve the above-mentioned technical problems. Summary of the Invention

[0007] The technical problem solved by this invention is to provide a practical and convenient pollinator for maize breeding that has a high pollen utilization rate and relatively uniform pollination.

[0008] To solve the above-mentioned technical problems, the pollinator for maize breeding provided by the present invention includes: a collecting cylinder, a pollen collection mechanism on one side of the collecting cylinder, a negative pressure mechanism on the side of the collecting cylinder away from the pollen collection mechanism, a pollination mechanism at the bottom of the collecting cylinder, a sealing mechanism on the pollination mechanism, and a vibration mechanism on the pollination mechanism; The negative pressure mechanism is used to generate negative pressure inside the collection cylinder; The pollen collection mechanism is used to collect pollen by using the negative pressure generated inside the collection cylinder and collect it into the collection cylinder; The pollination mechanism is used to spray pollen through the vibration mechanism and the sealing mechanism.

[0009] Preferably, the pollen collection mechanism includes a collection cover disposed on one side of the collection cylinder, one end of a collection tube connected to the top of the collection cover, the other end of the collection tube extending into the collection cylinder, a first filter screen fixedly installed inside the collection tube, the first filter screen being located outside the collection cylinder, a strainer being provided on the side of the first filter screen away from the collection cylinder, and a slag removal mechanism being provided on the outside of the collection tube, the slag removal mechanism being adapted to the strainer.

[0010] Preferably, the slag removal mechanism includes a support cylinder fixedly sleeved on the outside of the collection pipe, a collection box fixedly installed at the bottom of the support cylinder, the collection box being connected to the collection pipe through a mesh screen, a cover plate hinged to one side of the collection box, a buckle being provided between the cover plate and the collection box, and the cover plate being detachably connected to the collection box through the buckle.

[0011] Preferably, the negative pressure mechanism includes an exhaust pipe, one end of which extends into the collection cylinder. A second filter screen is fixedly installed at one end of the exhaust pipe inside the collection cylinder, and an installation cylinder is fixedly installed at the other end of the exhaust pipe. An exhaust fan is fixedly installed inside the installation cylinder, and a protective net is fixedly installed at the end of the exhaust fan away from the exhaust pipe.

[0012] Preferably, the end of the collecting pipe located inside the collecting cylinder is lower than the end of the exhaust pipe located inside the collecting cylinder.

[0013] Preferably, the pollination mechanism includes a conical powder collecting cylinder fixedly installed inside the collecting cylinder. A support ring is sleeved on the outer side of the conical powder collecting cylinder. The support ring is fixedly installed at the bottom end of the collecting cylinder. An installation ring is fixedly installed at the bottom end of the support ring. The inner wall of the installation ring is in contact with the conical powder collecting cylinder. A pollination cover is threaded on the outer side of the installation ring. The pollination cover is connected to the conical powder collecting cylinder. A third filter screen is provided at the bottom of the conical powder collecting cylinder.

[0014] Preferably, the sealing mechanism includes a mounting sleeve fixedly installed on the pollination cover, a sealing plate slidably installed inside the mounting sleeve, and the top of the sealing plate contacting the bottom of the pollination cover.

[0015] Preferably, the top of the sealing plate has a pull hole, a first magnet is fixedly installed on the sealing plate, a positioning strip is fixedly installed on the bottom of the mounting sleeve, and two second magnets are fixedly installed on the top of the positioning strip. The magnetic poles of the first magnet and the second magnet are opposite to each other when they are close to each other.

[0016] Preferably, the vibration mechanism includes a protective cover fixedly installed at the bottom of the collecting cylinder, the protective cover being fixedly connected to a support ring, a motor fixedly installed at the bottom of the collecting cylinder inside the protective cover, a cam fixedly installed on the output shaft of the motor, a push plate being provided on the side of the cam near the conical dust collecting cylinder, the push plate contacting the cam, a vibrating rod being fixedly installed on the side of the push plate away from the cam, a positioning sleeve being fitted on the outer side of the vibrating rod, the positioning sleeve being fixedly connected to the outer wall of the support ring, a connecting ring being fixedly fitted on the outer side of the vibrating rod, a spring being fitted on the outer side of the vibrating rod, the two ends of the spring being fixedly connected to the positioning sleeve and the connecting ring respectively, the end of the vibrating rod away from the push plate extending into the support ring, and the vibrating rod being adapted to the conical dust collecting cylinder.

[0017] Preferably, the end of the vibrating rod located inside the support ring is spherical.

[0018] Compared with related technologies, the pollinator for maize breeding provided by this invention has the following beneficial effects: This invention provides a pollinator for maize breeding. Through a negative pressure mechanism and a pollen collection mechanism, it avoids contamination of the pollen to be collected by pollen from other maize plants, thus enabling the collection of relatively pure pollen. Furthermore, a slag removal mechanism is incorporated into the pollen collection mechanism to collect anthers while preventing them from clogging the collection tube, thereby avoiding insufficient pollen collection. The pollination mechanism and sealing mechanism aggregate pollen falling into the collection cylinder, preventing the pollination mechanism from interfering with pollen collection. A vibration mechanism ensures that pollen passes evenly through a third filter screen into the pollination hood, improving the uniformity of maize pollination. During pollination, the pollination hood also prevents contamination of the silks extending from the tip of the female ear. Attached Figure Description

[0019] Figure 1 A schematic diagram of the first view of the pollinator for maize breeding provided by the present invention; Figure 2 This is a schematic diagram of the second perspective of the pollinator for maize breeding provided by the present invention. Figure 3 A schematic diagram of the third perspective of the pollinator for maize breeding provided by the present invention; Figure 4 for Figure 1 The diagram shows a cross-sectional view of the structure. Figure 5 for Figure 1 A schematic diagram showing the connection structure between the pollen collection mechanism and the residue removal mechanism; Figure 6 for Figure 5 The diagram shows a cross-sectional view of the structure. Figure 7 for Figure 5 The diagram shows the connection structure between the slag removal mechanism and the collection pipe. Figure 8 for Figure 7 A structural schematic diagram from another perspective is shown; Figure 9 for Figure 1 A cross-sectional view of the negative pressure mechanism shown. Figure 10 for Figure 1 A schematic diagram showing the connection structure of the pollination mechanism, sealing mechanism, and vibration mechanism; Figure 11 for Figure 10 A schematic diagram of a cross-sectional structure is shown; Figure 12 for Figure 10 Another cross-sectional view of the structure is shown in the diagram; Figure 13 for Figure 10 The diagram shows the structure of the vibration mechanism after the protective cover has been removed.

[0020] Numbered in the diagram: 1. Collection cylinder; 2. Pollen collection mechanism; 201. Collection pipe; 202. Collection cover; 203. Strainer; 204. First filter screen; 3. Negative pressure mechanism; 301. Exhaust pipe; 302. Mounting cylinder; 303. Exhaust fan; 304. Second filter screen; 305. Protective net; 4. Pollination mechanism; 401. Conical pollen collection cylinder; 402. Support ring; 403. Mounting ring; 404. Pollination cover; 405. Third filter screen; 5. Debris removal. Mechanism, 501, support cylinder, 502, connecting hole, 503, collection box, 504, cover plate, 505, buckle, 6, sealing mechanism, 601, mounting sleeve, 602, sealing plate, 603, pull hole, 604, first magnet, 605, second magnet, 7, vibration mechanism, 701, protective cover, 702, motor, 703, cam, 704, push plate, 705, vibrating rod, 706, connecting ring, 707, positioning sleeve, 708, spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figures 1-13 ,in, Figure 1 A schematic diagram of the first view of the pollinator for maize breeding provided by the present invention; Figure 2 This is a schematic diagram of the second perspective of the pollinator for maize breeding provided by the present invention. Figure 3A schematic diagram of the third perspective of the pollinator for maize breeding provided by the present invention; Figure 4 for Figure 1 The diagram shows a cross-sectional view of the structure. Figure 5 for Figure 1 A schematic diagram showing the connection structure between the pollen collection mechanism and the residue removal mechanism; Figure 6 for Figure 5 The diagram shows a cross-sectional view of the structure. Figure 7 for Figure 5 The diagram shows the connection structure between the slag removal mechanism and the collection pipe. Figure 8 for Figure 7 A structural schematic diagram from another perspective is shown; Figure 9 for Figure 1 A cross-sectional view of the negative pressure mechanism shown. Figure 10 for Figure 1 A schematic diagram showing the connection structure of the pollination mechanism, sealing mechanism, and vibration mechanism; Figure 11 for Figure 10 A schematic diagram of a cross-sectional structure is shown; Figure 12 for Figure 10 Another cross-sectional view of the structure is shown in the diagram; Figure 13 for Figure 10 The diagram shows the structure of the vibration mechanism after the protective cover is removed. The pollinator for maize breeding includes: a collection cylinder 1, a pollen collection mechanism 2 on one side of the collection cylinder 1, a negative pressure mechanism 3 on the side of the collection cylinder 1 away from the pollen collection mechanism 2, a pollination mechanism 4 at the bottom of the collection cylinder 1, a sealing mechanism 6 on the pollination mechanism 4, and a vibration mechanism 7 on the pollination mechanism 4. The negative pressure mechanism 3 is used to generate negative pressure inside the collection cylinder 1; The pollen collection mechanism 2 is used to collect pollen by using the negative pressure generated inside the collection cylinder 1 and collect it into the collection cylinder 1; The pollination mechanism 4 is used to spray pollen through the vibration mechanism 7 and the sealing mechanism 6.

[0023] The pollen collection mechanism 2 includes a collection cover 202 disposed on one side of the collection cylinder 1. One end of the collection tube 201 is connected to the top of the collection cover 202. The other end of the collection tube 201 extends into the collection cylinder 1. A first filter screen 204 is fixedly installed inside the collection tube 201. The first filter screen 204 is located outside the collection cylinder 1. A strainer 203 is provided on the side of the first filter screen 204 away from the collection cylinder 1. A slag removal mechanism 5 is provided on the outside of the collection tube 201. The slag removal mechanism 5 is adapted to the strainer 203.

[0024] The collection hood 202 is cone-shaped, which facilitates the insertion of the tassels while effectively preventing other contaminants (pollen from different corn species) from entering the collection cylinder 1, thereby improving the purity of the pollen and facilitating the collection of corn pollen. The first screen 203 improves the purity of the pollen entering the collection cylinder 1 and reduces the probability of the third filter 405 being clogged. The slag removal mechanism 5 includes a support cylinder 501 fixedly sleeved on the outside of the collection pipe 201. A collection box 503 is fixedly installed at the bottom of the support cylinder 501. The collection box 503 is connected to the collection pipe 201 through a mesh 203. A connecting hole 502 is opened at the top of the collection box 503. A cover plate 504 is hinged to one side of the collection box 503. A buckle 505 is provided between the cover plate 504 and the collection box 503. The cover plate 504 is detachably connected to the collection box 503 through the buckle 505.

[0025] The slag discharge mechanism 5 can collect the anthers, and when there is not enough pollen, it can collect the pollen that has not been removed from the anthers, thus ensuring the amount of pollen.

[0026] The negative pressure mechanism 3 includes an exhaust pipe 301, one end of which extends into the collection cylinder 1. A second filter screen 304 is fixedly installed at one end of the exhaust pipe 301 inside the collection cylinder 1, and an installation cylinder 302 is fixedly installed at the other end of the exhaust pipe 301. An exhaust fan 303 is fixedly installed inside the installation cylinder 302, and a protective net 305 is fixedly installed at the end of the exhaust fan 303 away from the exhaust pipe 301.

[0027] By setting the second filter 304, pollen in the collection cylinder 1 can be prevented from being discharged, thus ensuring pollen collection efficiency.

[0028] The end of the collecting pipe 201 located inside the collecting cylinder 1 is lower than the end of the exhaust pipe 301 located inside the collecting cylinder 1. This arrangement can more effectively reduce the adsorption of pollen entering the collecting cylinder 1 by the second filter 304, thereby better preventing the second filter from being blocked.

[0029] The pollination mechanism 4 includes a conical powder collecting cylinder 401 fixedly installed inside the collecting cylinder 1. A support ring 402 is sleeved on the outer side of the conical powder collecting cylinder 401. The support ring 402 is fixedly installed at the bottom end of the collecting cylinder 1. An installation ring 403 is fixedly installed at the bottom end of the support ring 402. The inner wall of the installation ring 403 is in contact with the conical powder collecting cylinder 401. A pollination cover 404 is threaded on the outer side of the installation ring 403. The pollination cover 404 is connected to the conical powder collecting cylinder 401. A third filter screen 405 is provided at the bottom of the conical powder collecting cylinder 401.

[0030] In this embodiment, the apertures of the perforated screen 203, the first filter screen 204, the third filter screen 405, and the second filter screen 304 decrease sequentially.

[0031] The sealing mechanism 6 includes a mounting sleeve 601 fixedly installed on the pollination cover 404, and a sealing plate 602 is slidably installed inside the mounting sleeve 601, with the top of the sealing plate 602 in contact with the bottom of the pollination cover 404.

[0032] The sealing plate 602 has a pull hole 603 on its top. A first magnet 604 is fixedly installed on the sealing plate 602. A positioning strip is fixedly installed on the bottom of the mounting sleeve 601. Two second magnets 605 are fixedly installed on the top of the positioning strip. The magnetic poles of the first magnet 604 and the second magnet 605 are opposite to each other. The arrangement of the first magnet 604 and the second magnet 605 facilitates the movement of the sealing plate 602 and also facilitates the fixing of the sealing plate 602 after it has been moved.

[0033] The vibration mechanism 7 includes a protective cover 701 fixedly installed at the bottom of the collecting cylinder 1. The protective cover 701 is fixedly connected to the support ring 402. A motor 702 fixedly installed at the bottom of the collecting cylinder 1 is disposed inside the protective cover 701. A cam 703 is fixedly installed on the output shaft of the motor 702. A push plate 704 is provided on the side of the cam 703 near the conical powder collecting cylinder 401. The push plate 704 contacts the cam 703. A vibrating rod 70 is fixedly installed on the side of the push plate 704 away from the cam 703. 5. A positioning sleeve 707 is fitted on the outer side of the vibrating rod 705. The positioning sleeve 707 is fixedly connected to the outer wall of the support ring 402. A connecting ring 706 is fixedly fitted on the outer side of the vibrating rod 705. A spring 708 is fitted on the outer side of the vibrating rod 705. The two ends of the spring 708 are fixedly connected to the positioning sleeve 707 and the connecting ring 706, respectively. One end of the vibrating rod 705 away from the push plate 704 extends into the support ring 402. The vibrating rod 705 is adapted to the conical powder collecting cylinder 401.

[0034] The vibrating rod 705 has a spherical end located inside the support ring 402.

[0035] After the sealing plate 602 is opened, some pollen will fall directly into the pollination cover 404, but most of the pollen cannot pass through the third filter 405 and fall into the pollination cover 404. Just like flour and a sieve, when the sieve is not shaken, the flour will basically not fall through the sieve screen. Therefore, by setting the vibration mechanism 7 to tap the conical pollen collecting cylinder 401, the pollen can be continuously and evenly falling into the pollination cover 404, thereby improving the uniformity of corn pollination.

[0036] The working principle of the pollinator for maize breeding provided by this invention is as follows: Before pollinating the corn, the exhaust fan 303 is first turned on. The exhaust fan 303 draws air out of the collection cylinder 1 through the exhaust pipe 301, creating a negative pressure inside the collection cylinder 1. Then, one hand lifts the entire device through the handle inside the collection cylinder 1 and places the collection cover 202 over the tassel at the very top of the corn plant. The other hand shakes the tassel at the very top of the corn plant to cause the pollen to fall from the dehiscent mature anthers. Under the negative pressure inside the collection cylinder 1, the fallen pollen enters through the collection cover 202 and the collection pipe 201. Inside the collection cylinder 1, during the process of pollen entering the collection cylinder 1, the detached anthers and other tissues are blocked in the collection tube 201 by the first filter screen 204, and the pollen smoothly enters the collection cylinder 1 through the first filter screen 204. The pollen in the collection cylinder 1 is blocked in the collection cylinder 1 by the second filter screen 304. During the pollen collection process, the anthers and other tissues of corn blocked in the collection tube 201 by the first filter screen 204 enter the collection box 503 through the third filter screen 5. After pollen collection is complete, turn off the exhaust fan 303, then place the pollination cover 404 over the female ear. Pull the sealing plate 602 through the pull hole 603. The sealing plate 602 drives the first magnet 604 to move until the first magnet 604 moves from one second magnet 605 to another second magnet 605. Then stop pulling the sealing plate 602. At this time, the conical pollen collecting cylinder 401 is connected to the pollination cover 404. Then start the motor 702. The output shaft of the motor 702 drives the cam 703 to move. Under the action of the cam 703 and the spring 708, the vibrating rod 705 reciprocates, continuously striking the conical pollen collecting cylinder 401. This causes the pollen above the third filter screen 405 to pass through the third filter screen 405 under vibration and fall into the pollination cover 404, finally sprinkling onto the filaments extending from the top of the female ear, completing precise pollination.

[0037] Compared with related technologies, the pollinator for maize breeding provided by this invention has the following beneficial effects: This invention provides a pollinator for maize breeding. Through a negative pressure mechanism 3 and a pollen collection mechanism 2, it avoids contamination of the pollen to be collected by pollen from other maize plants, thus enabling the collection of relatively pure pollen. Furthermore, a slag removal mechanism 5 is installed on the pollen collection mechanism 2 to collect the anthers while preventing them from clogging the collection tube 201, thereby avoiding insufficient pollen collection. The pollination mechanism 4 and the sealing mechanism 6 are used to aggregate the pollen falling into the collection cylinder 1, while preventing the pollination mechanism 4 from interfering with the pollen collection process. A vibration mechanism 7 ensures that the pollen passes evenly through the third filter 405 into the pollination cover 404, thereby improving the uniformity of maize pollination. During the pollination process, the pollination cover 404 also prevents the silks extending from the tip of the female ear from being contaminated.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A pollinator for maize breeding, characterized in that, include: A collection tube is provided with a pollen collection mechanism on one side, a negative pressure mechanism on the side of the collection tube away from the pollen collection mechanism, a pollination mechanism at the bottom of the collection tube, a sealing mechanism on the pollination mechanism, and a vibration mechanism on the pollination mechanism. The negative pressure mechanism is used to generate negative pressure inside the collection cylinder; The pollen collection mechanism is used to collect pollen by using the negative pressure generated inside the collection cylinder and collect it into the collection cylinder; The pollination mechanism is used to spray pollen through the vibration mechanism and the sealing mechanism.

2. The pollinator for maize breeding according to claim 1, characterized in that, The pollen collection mechanism includes a collection cover disposed on one side of the collection cylinder. One end of the collection tube is connected to the top of the collection cover, and the other end of the collection tube extends into the collection cylinder. A first filter screen is fixedly installed inside the collection tube. The first filter screen is located outside the collection cylinder. A strainer is provided on the side of the first filter screen away from the collection cylinder. A slag removal mechanism is provided on the outside of the collection tube, and the slag removal mechanism is adapted to the strainer.

3. The pollinator for maize breeding according to claim 2, characterized in that, The slag removal mechanism includes a support cylinder fixedly sleeved on the outside of the collection pipe. A collection box is fixedly installed at the bottom of the support cylinder. The collection box is connected to the collection pipe through a mesh screen. A cover plate is hinged to one side of the collection box. A buckle is provided between the cover plate and the collection box. The cover plate is detachably connected to the collection box through the buckle.

4. The pollinator for maize breeding according to claim 2, characterized in that, The negative pressure mechanism includes an exhaust pipe, one end of which extends into the collection cylinder. A second filter screen is fixedly installed at one end of the exhaust pipe inside the collection cylinder, and an installation cylinder is fixedly installed at the other end of the exhaust pipe. An exhaust fan is fixedly installed inside the installation cylinder, and a protective net is fixedly installed at the end of the exhaust fan away from the exhaust pipe.

5. The pollinator for maize breeding according to claim 4, characterized in that, The end of the collecting pipe located inside the collecting cylinder is lower than the end of the exhaust pipe located inside the collecting cylinder.

6. The pollinator for maize breeding according to claim 1, characterized in that, The pollination mechanism includes a conical powder collecting cylinder fixedly installed inside the collecting cylinder. A support ring is sleeved on the outer side of the conical powder collecting cylinder. The support ring is fixedly installed at the bottom end of the collecting cylinder. An installation ring is fixedly installed at the bottom end of the support ring. The inner wall of the installation ring is in contact with the conical powder collecting cylinder. A pollination cover is threaded on the outer side of the installation ring. The pollination cover is connected to the conical powder collecting cylinder. A third filter screen is provided at the bottom of the conical powder collecting cylinder.

7. The pollinator for maize breeding according to claim 6, characterized in that, The sealing mechanism includes a mounting sleeve fixedly installed on the pollination cover, and a sealing plate slidably installed inside the mounting sleeve, with the top of the sealing plate in contact with the bottom of the pollination cover.

8. The pollinator for maize breeding according to claim 7, characterized in that, The top of the sealing plate has a pull hole, a first magnet is fixedly installed on the sealing plate, a positioning strip is fixedly installed on the bottom of the mounting sleeve, and two second magnets are fixedly installed on the top of the positioning strip. The magnetic poles of the first magnet and the second magnet are opposite to each other when they are close to each other.

9. The pollinator for maize breeding according to claim 6, characterized in that, The vibration mechanism includes a protective cover fixedly installed at the bottom of the collecting cylinder. The protective cover is fixedly connected to a support ring. A motor fixedly installed at the bottom of the collecting cylinder is located inside the protective cover. A cam is fixedly installed on the output shaft of the motor. A push plate is provided on the side of the cam near the conical dust collecting cylinder. The push plate contacts the cam. A vibrating rod is fixedly installed on the side of the push plate away from the cam. A positioning sleeve is fitted on the outer side of the vibrating rod. The positioning sleeve is fixedly connected to the outer wall of the support ring. A connecting ring is fixedly fitted on the outer side of the vibrating rod. A spring is fitted on the outer side of the vibrating rod. The two ends of the spring are fixedly connected to the positioning sleeve and the connecting ring, respectively. The end of the vibrating rod away from the push plate extends into the support ring. The vibrating rod is adapted to the conical dust collecting cylinder.

10. The pollinator for maize breeding according to claim 6, characterized in that, The vibrating rod has a spherical end located inside the support ring.

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