A pollen collection device for tobacco breeding cross pollination

Abstract

The utility model relates to the technical field of tobacco breeding, concretely to a pollen collecting device for tobacco breeding hybridization pollination, it includes: sucking device, one side fixed connection of sucking device lower extreme has fixed pipe, fixed pipe lower extreme fixed connection has apron, apron lower extreme inner wall middle part fixed connection has connecting block, both sides outer walls of connecting block all are established with a clamping groove, apron lower extreme swing joint has collection box, one side upper end fixed connection of collection box inner wall has fixed box, one side fixed connection of fixed box inner wall has partition, both sides of fixed box inner wall all swing joint has an activity piece, the other side swing joint of activity piece has return spring. The utility model has solved the problem that the collection box of existing tobacco breeding device is inconvenient to dismount, the inner wall of collection box is difficult to clean completely, the residual different batches of pollens are easy to mix with newly collected pollens, causes cross contamination, and influences the accuracy of hybridization experiment.

Description

Technical Field

[0001] This utility model relates to the field of tobacco breeding technology, specifically a pollen collection device for tobacco breeding hybridization pollination. Background Technology

[0002] The pollen collection device used for hybridization pollination in tobacco breeding is a specialized tool in the field of tobacco breeding for collecting tobacco pollen. This device extracts pollen from tobacco flowers through a specific collection structure and collects it in a collection box, providing pure pollen raw materials for tobacco hybridization pollination experiments. It ensures the effective acquisition and storage of pollen during hybridization breeding and is suitable for both tobacco breeding laboratories and field hybridization pollination operations, contributing to the cultivation of superior tobacco varieties.

[0003] Traditional pollen collection devices used for hybridization pollination in tobacco breeding have significant shortcomings in terms of ease of disassembly and assembly of the collection box and prevention of cross-contamination. In most devices, the collection box is difficult to disassemble and assemble, and the inner wall of the collection box is difficult to clean thoroughly. Residual pollen from different batches can easily mix with newly collected pollen, causing cross-contamination and affecting the accuracy of hybridization experiments. Furthermore, some devices lack a stable fixing structure, and the collection box is prone to loosening and shifting during pollen collection, affecting pollen collection efficiency and potentially damaging the pollen due to box shaking. These devices fail to meet the stringent requirements of tobacco hybridization breeding for pollen purity, collection efficiency, and ease of operation. Therefore, we propose a pollen collection device for tobacco breeding hybridization pollination. Summary of the Invention

[0004] One of the technical problems this application aims to solve is that the collection boxes of existing tobacco breeding devices are inconvenient to disassemble and assemble, and the inner walls of the collection boxes are difficult to clean thoroughly. This leads to the easy mixing of pollen from different batches with newly collected pollen, causing cross-contamination and affecting the accuracy of hybridization experiments.

[0005] To address the aforementioned technical problems, this application provides a pollen collection device for tobacco breeding hybridization pollination, comprising an aspiration device, a fixed tube fixedly connected to one side of the lower end of the aspiration device, a cover plate fixedly connected to the lower end of the fixed tube, a connecting block fixedly connected to the middle of the inner wall of the lower end of the cover plate, a slot formed on each of the outer walls of the connecting block, a collection box movably connected to the lower end of the cover plate, a fixed box fixedly connected to the upper end of one side of the inner wall of the collection box, a partition fixedly connected to one side of the inner wall of the fixed box, a movable block movably connected to each of the two sides of the inner wall of the fixed box, and a return spring movably connected to the other side of the movable block.

[0006] In some embodiments, a flexible connector is connected to one outer wall of the suction device, a pneumatic control valve is connected to the upper outer wall of the suction device away from the flexible connector, an air nozzle is fixedly connected to the upper outer wall of the cover plate, a spring is fixedly connected to both sides of the inner wall of the cover plate, a connecting pipe is fixedly connected to the outer wall of the suction device away from the flexible connector, a limit plate is fixedly connected to both sides of the inner wall of the collection box, a filter screen is movably connected to one side of the inner wall of the limit plate, and a control switch is connected to the lower outer wall of one side of the suction device.

[0007] In some embodiments, a connecting pipe provided on one side of the outer wall of the suction device is fixedly connected to an air nozzle provided on one side of the cover plate.

[0008] In some embodiments, an air nozzle is provided on one side of the outer wall of the cover plate near the outer wall of the fixed pipe.

[0009] In some embodiments, the upper end of the filter screen provided on one side of the inner wall of the collection box is connected to the spring piece provided on the lower end of the inner wall of the cover plate.

[0010] In some embodiments, the fixing pipe and air nozzle provided on the upper outer wall of the cover plate are respectively located on both sides of the filter screen.

[0011] In some embodiments, a movable block provided on one side of the inner wall of the fixing box engages with a slot opened on the side wall of a connecting block provided at the lower end of the cover plate.

[0012] In some embodiments, the reset spring on one side of the movable block is fixedly connected to the partition on the other side of the inner wall of the fixed box.

[0013] This utility model has at least the following beneficial effects: In use, this invention features a quick-release structure consisting of a connecting block, a fixed box, a movable block, a return spring, and a slot, which plays a crucial role in ensuring the ease of disassembly of the collection box and preventing cross-contamination. When installing the collection box, pressing the movable block inward compresses the return spring. After inserting the connecting block into the fixed box, releasing the movable block allows the return spring's reaction force to engage the movable block with the slot of the connecting block, thus securing it. Disassembly simply requires pressing the movable block again to separate the collection box from the cover. This press-and-lock operation requires no tools, enabling rapid assembly and disassembly of the collection box. This facilitates timely removal of collected pollen and allows for thorough cleaning of the collection box, preventing cross-mixing of pollen from different batches and ensuring pollen purity in hybridization experiments. It also solves the contamination problem caused by the inconvenience of cleaning traditional collection devices. In use, this invention achieves precise screening through a separation structure consisting of a pressure control valve, an air nozzle, a connecting pipe, a filter screen, a spring plate, and a limiting plate, ensuring efficient separation and purity of pollen and impurities. The flexible connector, with its conical groove design, allows lightweight pollen to enter the device faster than heavy impurities. Subsequently, the pressure control valve adjusts the air pressure inside the collection box through the connecting pipe and the air nozzle, ensuring that the air pressure in the cavity corresponding to the fixed pipe is greater than that in the cavity corresponding to the air nozzle, thus pushing the pollen towards the cavity on the air nozzle side. The filter screen (fixed by the limiting plate) inside the collection box divides the cavity in two, precisely intercepting impurities that have not been separated in time, allowing only pollen to pass through. This achieves dual purification through "initial separation by transmission speed difference, followed by secondary interception by the filter screen," ensuring that the collected pollen is free of impurities. At the same time, the spring plate on the inner wall of the cover plate applies continuous squeezing force to the filter screen, preventing gaps from forming due to shaking, further eliminating impurity leakage and ensuring pollen purity. Attached Figure Description

[0014] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective; Figure 3 This is a schematic diagram of the disassembled structure of the collection box of this utility model; Figure 4 This is a schematic diagram of the internal disassembly structure of the collection box of this utility model.

[0015] In the diagram: 1. Suction device; 2. Flexible connector; 3. Air pressure control valve; 4. Fixed pipe; 5. Cover plate; 6. Connecting block; 7. Slot; 8. Air nozzle; 9. Spring; 10. Connecting pipe; 11. Collection box; 12. Fixed box; 13. Partition; 14. Movable block; 15. Return spring; 16. Limit plate; 17. Filter screen; 18. Control switch. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: a pollen collection device for tobacco breeding and hybridization pollination, including an absorption device 1, a fixed tube 4 fixedly connected to one side of the lower end of the absorption device 1, a cover plate 5 fixedly connected to the lower end of the fixed tube 4, a connecting block 6 fixedly connected to the middle of the inner wall of the lower end of the cover plate 5, a slot 7 opened on both sides of the outer wall of the connecting block 6, a collection box 11 movably connected to the lower end of the cover plate 5, a fixed box 12 fixedly connected to the upper end of one side of the inner wall of the collection box 11, a partition 13 fixedly connected to one side of the inner wall of the fixed box 12, a movable block 14 movably connected to both sides of the inner wall of the fixed box 12, the movable block 14 on one side of the inner wall of the fixed box 12 engaging with the slot 7 opened on the side wall of the connecting block 6 at the lower end of the cover plate 5, a return spring 15 movably connected to the other side of the movable block 14, and the other side of the return spring 15 on one side of the movable block 14 fixedly connected to the partition 13 on one side of the inner wall of the fixed box 12.

[0018] In this embodiment, a suction device 1 is designed, and a cover plate 5 is fixedly connected to the lower end of one side of the suction device 1 via a fixing tube 4. A connecting block 6 is fixedly connected to the middle of the lower end of the cover plate 5. A slot 7 is provided on both sides of the connecting block 6, and a collection box 11 is movably connected to the lower end of the cover plate 5. A fixing box 12 is fixedly connected to the upper end of one side of the inner wall of the collection box 11, and a partition 13 is fixedly connected to the middle of the inner wall of the fixing box 12. A movable block 14 is movably connected to both sides of the partition 13 via a return spring 15, and one side of the movable block 14 extends to the outer wall of the collection box 11. The connecting block 6 can be connected to the inner wall of the fixing box 12. Therefore, when the connecting block 6 is connected to the inner wall of the fixing box 12, the connection block 6 can be connected to the inner wall of the fixing box 12. When connecting block 6 to fixed box 12, the movable blocks 14 on both sides need to be pressed inward first. At this time, the two movable blocks 14 move inward and squeeze the return spring 15, and the connecting block 6 and fixed box 12 can be engaged. Then, release the squeezed movable blocks 14. The movable blocks 14 will be pushed to both sides by the reaction force of the return spring 15. At this time, the movable blocks 14 will engage with the slots 7 opened on the side wall of the connecting block 6. This allows the collection box 11 and cover plate 5 to be quickly disassembled, making it easy to take out the pollen after the operation. Furthermore, by cleaning the collection box 11, cross-mixing of pollen can be avoided, which would affect the hybridization effect.

[0019] Example 2: Please refer to Figure 1-3A flexible connector 2 is connected to one side of the outer wall of the suction device 1. A pressure control valve 3 is connected to the upper outer wall of the suction device 1 away from the flexible connector 2. An air nozzle 8 is fixedly connected to one side of the outer wall of the upper end of the cover plate 5. The air nozzle 8 on one side of the outer wall of the cover plate 5 is close to the outer wall of the fixed pipe 4. A spring piece 9 is fixedly connected to both sides of the inner wall of the cover plate 5. A connecting pipe 10 is fixedly connected to the outer wall of the suction device 1 away from the flexible connector 2. The connecting pipe 10 on one side of the outer wall of the suction device 1 is fixedly connected to the air nozzle 8 on one side of the cover plate 5. Limiting plates 16 are fixedly connected to both sides of the inner wall of the collection box 11. A filter screen 17 is movably connected to one side of the inner wall of the limiting plate 16. The upper end of the filter screen 17 on one side of the inner wall of the collection box 11 is correspondingly connected to the spring piece 9 on the lower inner wall of the cover plate 5. The fixed pipe 4 and the air nozzle 8 on the upper outer wall of the cover plate 5 are respectively located on both sides of the filter screen 17. A control switch 18 is connected to the lower outer wall of one side of the suction device 1.

[0020] In this embodiment, a flexible connector 2 is provided on one side of the suction device 1, through which pollen can be sucked up. A pressure control valve 3 is provided on the outer wall of the upper side of the suction device 1, which can adjust the air pressure inside the suction device 1. An air nozzle 8 is fixedly connected to the outer wall of the other side of the suction device 1 via a connecting pipe 10. The air nozzle 8 is fixedly connected to the outer wall of one side of the cover plate 5 and extends to the inner wall of the collection box 11. Therefore, through the action of the pressure control valve 3, the connecting pipe 10, and the air nozzle 8, the air pressure inside the collection box 11 can be changed. Thus, pollen can first be sucked into the suction device 1 through the flexible connector 2 and then transferred to the collection box 11 through the fixed pipe 4. Because the flexible connector 2 has a conical groove, lighter substances can enter first, while heavier substances are transferred more slowly. During the suction process, impurity particles may be accidentally sucked up along with the pollen. At this time, the two need to be separated. Pollen is lightweight. Therefore, the pollen is transported faster than the impurities and will enter the collection box 11 first. The collection box 11 adjusts its internal air pressure through the air pressure control valve 3, connecting pipe 10, and air nozzle 8, making the cavity corresponding to the fixed pipe 4 larger than the cavity corresponding to the air nozzle 8. At this time, the pollen will be transported to the other side. A filter screen 17 is connected to one side of the inner wall of the cavity of the collection box 11 through a limiting plate 16. The filter screen 17 can divide the cavity into two parts, corresponding to the cavities corresponding to the fixed pipe 4 and the air nozzle 8 respectively. This can prevent impurities from entering and separate pollen from impurities, thus making the device practical. The upper end of the filter screen 17 is connected to the spring piece 9 provided at the lower end of the inner wall of the cover plate 5. The spring piece 9 can exert a squeezing force on the filter screen 17 to ensure that the filter screen 17 does not shake during use, avoiding the situation where impurities and pollen are mixed together due to gaps caused by shaking.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A pollen collection device for tobacco breeding and hybridization pollination, comprising an absorption device (1), characterized in that: The suction device (1) is fixedly connected to a fixed tube (4) on one side of its lower end. The fixed tube (4) is fixedly connected to a cover plate (5) at its lower end. A connecting block (6) is fixedly connected to the middle of the inner wall of the lower end of the cover plate (5). A slot (7) is opened on the outer wall of both sides of the connecting block (6). A collection box (11) is movably connected to the lower end of the cover plate (5). A fixed box (12) is fixedly connected to the upper end of one side of the inner wall of the collection box (11). A partition (13) is fixedly connected to one side of the inner wall of the fixed box (12). A movable block (14) is movably connected to both sides of the inner wall of the fixed box (12). A return spring (15) is movably connected to the other side of the movable block (14).

2. The pollen collection device for tobacco breeding hybridization pollination according to claim 1, characterized in that: The suction device (1) is connected to a flexible connector (2) on one side of its outer wall. The suction device (1) is connected to a pressure control valve (3) on the upper outer wall away from the flexible connector (2). The cover plate (5) is fixedly connected to an air nozzle (8) on one side of its upper outer wall. The cover plate (5) is fixedly connected to a spring piece (9) on both sides of its inner wall. The suction device (1) is fixedly connected to a connecting pipe (10) on one side of its outer wall away from the flexible connector (2). The collection box (11) is fixedly connected to a limiting plate (16) on both sides of its inner wall. The limiting plate (16) is movably connected to a filter screen (17) on one side of its inner wall. The suction device (1) is connected to a control switch (18) on the lower outer wall.

3. The pollen collection device for tobacco breeding hybridization pollination according to claim 2, characterized in that: The connecting pipe (10) on one side of the outer wall of the suction device (1) is fixedly connected to the air nozzle (8) on one side of the cover plate (5).

4. The pollen collection device for tobacco breeding hybridization pollination according to claim 2, characterized in that: The air nozzle (8) on one side of the outer wall of the cover plate (5) is located near the outer wall of the fixed pipe (4).

5. A pollen collection device for tobacco breeding hybridization pollination according to claim 2, characterized in that: The upper end of the filter screen (17) provided on one side of the inner wall of the collection box (11) is connected to the spring piece (9) provided on the lower inner wall of the cover plate (5).

6. The pollen collection device for tobacco breeding hybridization pollination according to claim 2, characterized in that: The fixing pipe (4) and the air nozzle (8) on the upper outer wall of the cover plate (5) are respectively located on both sides of the filter screen (17).

7. The pollen collection device for tobacco breeding hybridization pollination according to claim 1, characterized in that: The movable block (14) provided on one side of the inner wall of the fixed box (12) engages with the slot (7) opened on the side wall of the connecting block (6) provided at the lower end of the cover plate (5).

8. The pollen collection device for tobacco breeding hybridization pollination according to claim 1, characterized in that: The reset spring (15) on one side of the movable block (14) is fixedly connected to the partition (13) on the other side of the inner wall of the fixed box (12).

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