Pollen collection equipment for corn breeding

Abstract

The invention belongs to the technical field of pollen collection, and particularly relates to pollen collection equipment for corn breeding, which comprises a supporting rod, a pollen collection mechanism is arranged at the top end of the supporting rod, the pollen collection mechanism comprises a collection cylinder, a plurality of collection assemblies are arranged in the collection cylinder, and a driving assembly is arranged on the supporting rod. The driving assembly is in transmission fit with the collecting assembly, a blocking assembly is arranged on the supporting rod and used for blocking a bottom opening of the collecting cylinder, a pollen collecting mechanism is arranged on the blocking assembly and comprises a cylinder body communicated with the blocking assembly, and a shell breaking assembly and a suction assembly are sequentially arranged in the cylinder body from top to bottom. The shell breaking assembly is used for breaking the shell of the anther, and the suction assembly is used for sucking the anther and pollen in the blocking assembly into the barrel for collection. The pollen collecting device can improve collecting efficiency, guarantee pollen quality, break shells of anther and filter out pollen.

Description

Technical Field

[0001] The present invention belongs to the technical field of pollen collection, and particularly relates to a pollen collection device for maize breeding. Background Art

[0002] In crop production, for self-incompatible, monoecious and dioecious crops; in the case of lack of pollination trees or adverse weather during the flowering period, which affects normal natural pollination, artificial pollination is often used to transfer plant pollen to the stigma to increase the seed setting rate.

[0003] Before pollination, the pollen of maize tassels needs to be collected, and some maize pollen collection devices have emerged. However, when the existing maize pollen collection devices collect maize pollen, it is easy to cause the maize pollen to disperse and waste; at the same time, the collected pollen is mixed with anthers, and the collection efficiency is not high. Therefore, it is necessary to design a pollen collection device for maize breeding to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a pollen collection device for maize breeding to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the present invention provides a pollen collection device for maize breeding, including a support rod, a pollen collection mechanism is arranged at the top of the support rod, the pollen collection mechanism includes a collection cylinder, multiple collection components are arranged inside the collection cylinder, a driving component is arranged on the support rod, the driving component is in transmission cooperation with the collection components, a blocking component is arranged on the support rod, the blocking component is used to block the bottom opening of the collection cylinder, a pollen collection mechanism is arranged on the blocking component, the pollen collection mechanism includes a cylinder body communicated with the blocking component, a shell-breaking component and a suction component are sequentially arranged in the cylinder body from top to bottom, the shell-breaking component is used to break the shell of the anther, and the suction component is used to suck the anthers and pollen in the blocking component into the cylinder body for collection.

[0006] Preferably, the collection components include a plurality of second rotating shafts rotatably connected to the top wall of the collection cylinder, the plurality of second rotating shafts are arranged at equal intervals along the circumferential direction of the collection cylinder, and brush hairs are arranged on the second rotating shafts.

[0007] Preferably, the brush hairs are arranged in a spiral shape along the outer wall of the second rotating shaft, and a plurality of baffles are connected to the inner wall of the collection cylinder in the vertical direction, and the brush hairs are in frictional contact with the baffles.

[0008] Preferably, the driving assembly includes an automatic retracting unit and a lifting unit. The automatic retracting unit is arranged at the top end of the collecting cylinder, and the automatic retracting unit is used to drive the second rotating shaft to rotate. The lifting unit is arranged on the support rod, and the lifting unit is used to drive the automatic retracting unit to unwind.

[0009] Preferably, the automatic retracting unit includes a second limiting ring coaxially sleeved on the second rotating shaft. The second limiting ring is fixedly connected to the outer top wall of the collecting cylinder. A hairspring is sleeved on the second rotating shaft. One end of the hairspring is clamped on the second rotating shaft, and the other end of the hairspring is clamped on the inner wall of the second limiting ring. The top end of the second rotating shaft is connected with a winding wheel. One end of a second pulling wire is wound around the winding wheel, and the other end of the second pulling wire is connected with the lifting unit.

[0010] Preferably, the lifting unit includes a connecting column. The collecting cylinder is connected to the support rod through the connecting column. A second sliding ring is slidably and limitedly connected to the connecting column. A plurality of second pulling wires are fixedly connected to the circumferential direction of the second sliding ring. The ends of the plurality of second pulling wires are respectively wound around the winding wheel. A first pulling wire is connected to the second sliding ring. A plurality of fixed pulleys are arranged on the support rod. The end of the first pulling wire is connected with a driving member through the reversing of the fixed pulley.

[0011] Preferably, the blocking assembly includes a blocking plate slidably connected to the support rod. An opening for the cornstalk to pass through is formed at one end of the blocking plate away from the support rod. A rubber strip is connected to the opening. A first limiting ring is connected to the top end of the blocking plate. The opening penetrates through the outer wall of the first limiting ring. An annular groove is formed on the top surface of the blocking plate. The cross section of the annular groove is triangular, and the annular groove is coaxially arranged with the first limiting ring.

[0012] Preferably, the shell-breaking assembly includes a first rotating shaft rotatably connected to the top wall of the cylinder body. The first rotating shaft is coaxially arranged with the cylinder body. A motor is installed on the top wall of the cylinder body. The output end of the motor is connected to the first rotating shaft. The upper part of the cylinder body is communicated with the blocking assembly through a conduit. A plurality of crushing blades are circumferentially connected to the outer wall of the first rotating shaft.

[0013] Preferably, the suction assembly includes a plurality of fan blades, and the plurality of fan blades are equidistantly arranged along the circumferential direction of the outer wall of the first rotating shaft.

[0014] Preferably, a collecting bottle is communicated with the bottom end of the cylinder body. A drawer is slidably arranged on the collecting bottle. A filter screen is arranged on the bottom surface of the drawer. A cover body is screwed on the bottle mouth of the collecting bottle. A ventilation hole is formed in the cover body, and a pollen interception net is arranged on the ventilation hole.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] A pollen collection device for corn breeding provided by the present invention, when in use, the collection cylinder is sleeved on the corn tassel, and the blocking group seals the bottom opening of the collection cylinder. At this time, the corn stalk is inside the notch of the blocking component. By setting the driving component, multiple groups of collection components are driven to rotate simultaneously. Through the friction between the collection components and the tassel, the pollen is knocked off, improving the collection efficiency. Subsequently, through the suction component arranged, a negative pressure is formed in the cylinder to suck the fallen anthers and pollen into the cylinder, avoiding the dispersion and waste of pollen and ensuring the integrity of the collection. Subsequently, the shell of the anther is broken by the shell-breaking component to expose the pollen for collection. The entire collection process is carried out in a closed cylinder, effectively reducing the pollution of pollen by the external environment and ensuring the quality of the collected pollen.

[0017] The present invention can improve the collection efficiency, ensure the quality of pollen, break the shell of the anther, and filter out the pollen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0019] Figure 1 is a schematic structural diagram of a pollen collection device for corn breeding proposed by the present invention;

[0020] Figure 2 is Figure 1 a partial enlarged view of part A in

[0021] Figure 3 is a schematic structural diagram of the automatic winding unit in the present invention;

[0022] Figure 4 is a schematic structural diagram of the blocking component in the present invention;

[0023] Figure 5 is a schematic structural diagram of the drawer in the present invention;

[0024] Wherein: 1. Handle; 2. First spring; 3. Slide rod; 4. First sliding ring; 5. Second spring; 6. Filter screen; 7. First pull wire; 8. Fixed pulley; 9. Cover body; 10. Collection bottle; 11. Drawer; 12. Cylinder body; 13. Fan blade; 14. Crushing blade; 15. Support rod; 16. First rotating shaft; 17. Motor; 18. Adjusting bolt; 19. Plug plate; 20. First limiting ring; 21. Collection cylinder; 22. Rubber strip; 23. Connecting column; 24. Limiting block; 25. Second sliding ring; 26. Guide groove; 27. Second pull wire; 28. Winding wheel; 29. Second limiting ring; 30. Positioning bracket; 31. Brush hair; 32. Baffle plate; 33. Second rotating shaft; 34. Annular groove; 35. Duct; 36. Notch; 37. Spring strip. Detailed implementation manner

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0027] Embodiment 1:

[0028] Referring to Figures 1 to 5 As shown, the present invention provides a pollen collection device for corn breeding, including a support rod 15. A pollen collection mechanism is arranged at the top of the support rod 15. The pollen collection mechanism includes a collection cylinder 21. A plurality of collection components are arranged inside the collection cylinder 21. A driving component is arranged on the support rod 15. The driving component is in transmission cooperation with the collection components. A blocking component is arranged on the support rod 15. The blocking component is used to block the bottom opening of the collection cylinder 21. A pollen collection mechanism is arranged on the blocking component. The pollen collection mechanism includes a cylinder body 12 communicated with the blocking component. A shell-breaking component and a suction component are sequentially arranged in the cylinder body 12 from top to bottom. The shell-breaking component is used to break the outer shell of the anther, and the suction component is used to suck the anther and pollen in the blocking component into the cylinder body 12 for collection.

[0029] During use, the collection cylinder 21 is sleeved on the corn tassel, and the blocking group seals the bottom opening of the collection cylinder 21. At this time, the corn stalk is inside the notch 36 of the blocking component. The driving component drives multiple groups of collection components to rotate simultaneously. Through the friction between the collection components and the tassel, the pollen is knocked off, improving the collection efficiency. Subsequently, the suction component forms a negative pressure in the cylinder body 12 to suck the fallen anthers and pollen into the cylinder body 12, avoiding the dispersion and waste of pollen and ensuring the integrity of the collection. Subsequently, the shell of the anther is broken by the shell-breaking component to expose the pollen for collection. The entire collection process is carried out in a closed cylinder body, effectively reducing the pollution of pollen by the external environment and ensuring the quality of the collected pollen.

[0030] The present invention can improve the collection efficiency, ensure the quality of pollen, break the shell of the anther, and filter out the pollen.

[0031] Further, the collection component includes a plurality of second rotating shafts 33 rotatably connected to the top wall of the collection cylinder 21. The plurality of second rotating shafts 33 are equidistantly arranged along the circumferential direction of the collection cylinder 21, and brush hairs 31 are arranged on the second rotating shafts 33.

[0032] The rotating second rotating shaft 33 drives the brush hairs 31 to rub against the tassel to knock off the anthers and pollen.

[0033] Further, the brush hairs 31 are arranged in a spiral shape along the outer wall of the second rotating shaft 33. A plurality of baffles 32 are connected to the inner wall of the collection cylinder 21 in the vertical direction, and the brush hairs 31 are in frictional contact with the baffles 32.

[0034] The arranged baffles 32 can scrape off the anthers remaining on the brush hairs 31, thereby ensuring that the anthers on the tassel fully fall off.

[0035] Further, the driving component includes an automatic retracting unit and a lifting unit. The automatic retracting unit is arranged at the top of the collection cylinder 21 and is used to drive the second rotating shaft 33 to rotate. The lifting unit is arranged on the support rod 15 and is used to drive the automatic retracting unit to unwind.

[0036] The lifting unit drives the automatic retracting unit to unwind. During the unwinding process, the second rotating shaft 33 will be driven to rotate. When the pulling force of the lifting unit disappears, the automatic retracting unit relies on its own retracting ability to drive the second rotating shaft 33 to rotate in the reverse direction again. Through the forward and reverse rotation of the second rotating shaft 33, the brush hairs 31 are driven to fully rub against the tassel, causing the pollen to fall off.

[0037] Further, the automatic retraction unit includes a second limiting ring 29 coaxially sleeved on the second rotating shaft 33. The second limiting ring 29 is fixedly connected to the outer top wall of the collection cylinder 21. A clockwork spring 37 is sleeved on the second rotating shaft 33. One end of the clockwork spring 37 is clamped on the second rotating shaft 33, and the other end of the clockwork spring 37 is clamped on the inner wall of the second limiting ring 29. The top end of the second rotating shaft 33 is connected to a winding wheel 28. One end of a second pull wire 27 is wound around the winding wheel 28, and the other end of the second pull wire 27 is connected to the lifting unit.

[0038] Relying on the characteristics of the clockwork spring 37 itself, automatic retraction is achieved. Specifically, the second pull wire 27 on the winding wheel 28 starts to pay out under the pull of the lifting unit. During the pay-out process, it will drive the winding wheel 28 and the second rotating shaft 33 to rotate, and at the same time tighten the clockwork spring 37. When the force on the lifting unit disappears, the tightened clockwork spring 37 has a restoring force and starts to return to its natural state, thereby forcing the second rotating shaft 33 to rotate in the reverse direction, and then driving the winding wheel 28 to rotate in the reverse direction, and then retracting the second pull wire 27.

[0039] To ensure the smoothness of the retraction process of the second pull wire 27, a positioning bracket 30 is vertically connected to the collection cylinder 21. The second pull wire 27 passes through the positioning bracket 30, so that the second pull wire 27 is always aligned with the groove of the winding wheel 28, which can prevent the second pull wire 27 from knotting.

[0040] Further, the lifting unit includes a connecting column 23. The collection cylinder 21 is connected to the support rod 15 through the connecting column 23. A second sliding ring 25 is slidably and limitedly connected to the connecting column 23. A plurality of second pull wires 27 are circumferentially and fixedly connected to the second sliding ring 25. The ends of the plurality of second pull wires 27 are respectively wound around the winding wheel 28. A first pull wire 7 is connected to the second sliding ring 25. A plurality of fixed pulleys 8 are arranged on the support rod 15. The end of the first pull wire 7 is reversed through the fixed pulley 8 and connected to a driving member. Further, the driving member is an electric winch.

[0041] A guiding groove 26 is axially opened on the outer wall of the connecting column 23. A limiting block 24 is connected to the inner wall of the second sliding ring 25. The limiting block 24 is slidably and limitedly located in the guiding groove 26, and lubricating grease is applied to the inner wall of the second sliding ring 25, thereby ensuring the smoothness of the second sliding ring 25 sliding on the connecting column 23, and at the same time preventing the second pull wire 27 from knotting due to the rotation of the second sliding ring 25.

[0042] By winding one end of the first pull wire 7 with an electric winch, the other end of the first pull wire 7 passes through a plurality of fixed pulleys 8 for commutation and finally pulls the second sliding ring 25 to move upward along the connecting column 23. The upward moving connecting column 23 synchronously pulls a plurality of second pull wires 27, thereby realizing the synchronous pay-out of a plurality of winding wheels 28, and then realizing the rotation of the second rotating shaft 33. When the electric winch rotates in reverse, the first pull wire 7 pays out and the second sliding ring 25 moves downward.

[0043] Further, the plugging assembly includes a plug plate 19 slidably connected to the support rod 15. An opening 36 for the passage of corn stalks is formed at one end of the plug plate 19 away from the support rod 15. A rubber strip 22 is connected to the opening 36. A first limiting ring 20 is connected to the top end of the plug plate 19. The opening 36 penetrates through the outer wall of the first limiting ring 20. An annular groove 34 is formed on the top surface of the plug plate 19. The cross-section of the annular groove 34 is triangular, and the annular groove 34 is coaxially arranged with the first limiting ring 20.

[0044] By arranging the first limiting ring 20 to enter the opening of the collection cylinder 21, it is convenient to position the plug plate 19. An adjusting bolt 18 is threadedly connected to the plug plate 19 to fix the plug plate 19 on the support rod 15, preventing the plug plate 19 from sliding and falling during the process of collecting pollen.

[0045] To improve the sealing performance at the connection between the opening 36 and the corn stalk, the rubber strip 22 is arranged to be squeezed to achieve sealing, ensuring the suction effect of the suction assembly. By forming the annular groove 34 at the top end of the plug plate 19, a frustum of a cone is formed on the surface of the plug plate 19, which is beneficial for the pollen and anthers to slide to the bottom of the annular groove 34, and further assisting the pollen and anthers to be smoothly sucked into the cylinder body 12.

[0046] Further, the shell-breaking assembly includes a first rotating shaft 16 rotatably connected to the top wall of the cylinder body 12. The first rotating shaft 16 is coaxially arranged with the cylinder body 12. A motor 17 is installed on the top wall of the cylinder body 12. The output end of the motor 17 is connected to the first rotating shaft 16. The upper part of the cylinder body 12 is communicated with the plugging assembly through a conduit 35. A plurality of crushing blades 14 are circumferentially connected to the outer wall of the first rotating shaft 16.

[0047] By setting the direction of the crushing blades 14, not only can the anthers be shelled, but also the rotation of the motor 17 driving the first rotating shaft 16 and the crushing blades 14 can create the effect of air flow.

[0048] Further, the suction assembly includes a plurality of fan blades 13, and the plurality of fan blades 13 are equidistantly arranged along the circumference of the outer wall of the first rotating shaft 16.

[0049] When the motor 17 drives the first rotating shaft 16 and the crushing blades 14 to rotate to achieve the effect of shelling the anthers, the rotating first rotating shaft 16 drives the fan blades 13 to rotate to discharge the gas in the cylinder body 12, forming a negative pressure to achieve the suction of the anthers and pollen.

[0050] Further, the bottom end of the cylinder body 12 is communicated with a collection bottle 10. A drawer 11 is slidably arranged on the collection bottle 10. A filter screen 6 is arranged on the bottom surface of the drawer 11. A cover body 9 is screwed on the bottle mouth of the collection bottle 10. A ventilation hole is formed on the cover body 9, and a pollen interception net is arranged on the ventilation hole.

[0051] The broken anther shell is intercepted by the filter screen 6, and the pollen falls into the collection bottle 10. The pollen is intercepted by the pollen interception net, and at the same time, exhaust can be carried out. Then, under the action of multiple fan blades 13, an air flow is formed to drive the anthers and pollen to smoothly enter the cylinder body 12.

[0052] The pollen collection device for corn breeding provided by the present invention has the following working principle: When in use, the collection cylinder 21 is sleeved on the corn tassel, and the sealing group seals the bottom opening of the collection cylinder 21. By winding and unwinding the wire of the electric winch, the up and down movement of the slip ring two 25 is controlled, and then the winding and unwinding of the wire wheel 28 is controlled. Under the elastic force of the spring 37, the positive and negative alternating rotation of the rotation shaft two 33 is realized. The rotation shaft two 33 drives the brush hairs 31 to rub the pollen on the tassel, and then the pollen is knocked off. During the process, anthers may also fall. Subsequently, the motor 17 is started, and the motor 17 drives the rotation shaft one 16 to rotate. The rotating rotation shaft one 16 drives the crushing blades 14 and the fan blades 13 to rotate simultaneously to form an air flow, so that the pollen and anthers are sucked into the cylinder body 12 to remove the anther shell. At the same time, the anther shell is intercepted on the filter screen 6, and the pollen falls smoothly on the pollen interception net on the cover body 9 under the blowing of the air flow. The shell on the filter screen 6 can be conveniently cleaned by pulling out the drawer 11, and the pollen can be conveniently discharged by rotating the cover body 9.

[0053] Embodiment Two:

[0054] Refer to Figure 1 As shown, the difference between this embodiment and Embodiment One is that the driving member includes a sliding rod 3 connected to the bottom end of the support rod 15. The bottom end of the sliding rod 3 is connected with a handle 1. A slip ring one 4 is slidably sleeved on the sliding rod 3. A spring two 5 is sleeved on the top end of the sliding rod 3, and a spring one 2 is sleeved on the low end of the sliding rod 3. The slip ring one 4 is located between the spring two 5 and the spring one 2, and the end of the pull wire one 7 is connected with the slip ring one 4.

[0055] Working principle: The slip ring one 4 can slide and is clamped by the spring one 2 and the spring two 5. Such a setting provides a stable and adjustable positioning of the slip ring one 4 on the sliding rod 3. The end of the pull wire one 7 is connected with the slip ring one 4. By moving the slip ring one 4 up and down, the pull wire one 7 can be pulled. When the slip ring one 4 is moved downward, the pull wire one 7 pulls the slip ring two 25 upward, and the automatic winding unit performs a unwinding action. The settings of the spring one 2 and the spring two 5 can be used to provide a reset force and a buffering effect, so that the pull wire one 7 can always be in a taut state and avoid knotting.

[0056] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0057] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application.

Claims

1. A pollen collection device for corn breeding, characterized in that: The invention comprises a support rod (15), the top of which is provided with a pollen collecting mechanism, the pollen collecting mechanism comprising a collecting tube (21), a plurality of collecting components being arranged inside the collecting tube (21), a driving component being arranged on the support rod (15), the driving component being in transmission cooperation with the collecting component, a blocking component being arranged on the support rod (15), the blocking component being used for blocking the bottom opening of the collecting tube (21), a pollen collecting mechanism being arranged on the blocking component, the pollen collecting mechanism comprising a cylinder (12) connected to the blocking component, a shell breaking component and a suction component being arranged in sequence from top to bottom in the cylinder (12), the shell breaking component being used for breaking the outer shell of the anther, and the suction component being used for sucking the anther and pollen in the blocking component into the cylinder (12) for collection.

2. The pollen collection device for corn breeding according to claim 1, characterized in that: The collecting assembly comprises a plurality of rotating shafts (33) rotatably connected to the top wall of the collecting tube (21), the plurality of rotating shafts (33) being arranged at equal intervals along the circumference of the collecting tube (21), and bristles (31) being arranged on the rotating shafts (33).

3. The pollen collection device for corn breeding according to claim 2, characterized in that: The bristles (31) are arranged in a spiral shape along the outer wall of the second rotating shaft (33); a plurality of baffles (32) are connected to the inner wall of the collecting tube (21) in a vertical direction; and the bristles (31) are in frictional contact with the baffles (32).

4. The pollen collection device for corn breeding according to claim 3, characterized in that: The driving assembly comprises an automatic winding unit and a lifting unit, wherein the automatic winding unit is arranged at the top end of the collecting tube (21), and is used to drive the second rotating shaft (33) to rotate; the lifting unit is arranged on the supporting rod (15), and is used to drive the automatic winding unit to unwind.

5. The pollen collection device for corn breeding according to claim 4, characterized in that: The automatic winding unit comprises a limiting ring (29) coaxially sleeved on the rotating shaft (33), the limiting ring (29) being fixedly connected to the outer top wall of the collecting tube (21), a spring (37) being sleeved on the rotating shaft (33), one end of the spring (37) being clamped on the rotating shaft (33), the other end of the spring (37) being clamped on the inner wall of the limiting ring (29), the top end of the rotating shaft (33) being connected to a winding wheel (28), one end of a pull wire (27) being wound on the winding wheel (28), the other end of the pull wire (27) being connected to the pulling unit.

6. The pollen collection device for corn breeding according to claim 5, characterized in that: The lifting unit comprises a connecting column (23), the collecting tube (21) is connected to the supporting rod (15) via the connecting column (23), a slip ring 2 (25) is connected to the connecting column (23) in a sliding limiter manner, a plurality of pull wires 2 (27) are fixedly connected to the circumference of the slip ring 2 (25), the ends of the plurality of pull wires 2 (27) are respectively and correspondingly wound around the winding wheel (28), a pull wire 1 (7) is connected to the slip ring 2 (25), a plurality of fixed pulleys (8) are arranged on the supporting rod (15), and the ends of the pull wires 1 (7) are connected to a driving member through the reversing of the fixed pulley (8).

7. The pollen collection device for corn breeding according to claim 1, characterized in that: The blocking assembly comprises a blocking plate (19) slidably connected to the support rod (15); a notch (36) for corn stalks to pass through is provided at one end of the blocking plate (19) away from the support rod (15); a rubber strip (22) is connected to the notch (36); the top end of the blocking plate (19) is connected to a limiting ring (20); the notch (36) passes through the outer wall of the limiting ring (20); an annular groove (34) is provided on the top surface of the blocking plate (19); the cross section of the annular groove (34) is triangular; the annular groove (34) is coaxially arranged with the limiting ring (20).

8. The pollen collection device for corn breeding according to claim 1, characterized in that: The shell breaking assembly comprises a rotating shaft (16) rotatably connected to the top wall of the cylinder (12); the rotating shaft (16) is coaxially arranged with the cylinder (12); a motor (17) is mounted on the top wall of the cylinder (12); an output end of the motor (17) is connected to the rotating shaft (16); the upper part of the cylinder (12) is connected to the blocking assembly via a conduit (35); and a plurality of crushing blades (14) are circumferentially connected to the outer wall of the rotating shaft (16).

9. The pollen collection device for corn breeding according to claim 8, characterized in that: The suction assembly comprises a plurality of fan blades (13), and the plurality of fan blades (13) are arranged at equal intervals along the circumference of the outer wall of the rotating shaft (16).

10. The pollen collection device for corn breeding according to claim 1, characterized in that: The bottom end of the cylinder (12) is connected to a collecting bottle (10), a drawer (11) is slidably provided on the collecting bottle (10), a filter net (6) is provided on the bottom surface of the drawer (11), a cover (9) is screwed on the bottle mouth of the collecting bottle (10), a ventilation hole is provided on the cover (9), and a pollen interception net is provided on the ventilation hole.

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