CN116086892A - pollen sampling device - Google Patents

Abstract

The present disclosure provides a pollen sampling device, comprising: the pollen collecting device comprises a barrel, wherein a collecting cavity suitable for collecting pollen is arranged in the barrel, and a plurality of first through holes communicated with the collecting cavity are formed in the side wall of the barrel so as to accommodate the pollen to enter the collecting cavity along the radial direction of the barrel; the collecting assembly is arranged in the collecting cavity, and the part of the collecting assembly, which faces the first through hole, is suitable for collecting pollen passing through the first through hole; a first drainage assembly comprising: the collecting seats are arranged on the outer side of one first through hole of the cylinder body, a second through hole is formed in the part, facing the first through hole, of each collecting seat, and a first collecting channel for receiving pollen to pass through is formed in the collecting seat between the second through hole and the first through hole; a masking plate mounted within the first collection channel and configured to move between a masking position in which the second through-hole is completely masked and an open position in which a portion of the second through-hole is open.

Description

pollen sampling device

technical field

The present disclosure relates to the technical field of pollen collection equipment, and more particularly, to a pollen sampling device.

Background technique

The pollen sampling work is affected by the season and flowering period. Pollen collection is widely used in the fields of agriculture, medicine and health, especially in the medical field. Through the pollen index forecast, the relevant meteorological department can be prompted to issue relevant warnings and take measures to reduce pollen Floating can also guide people with pollen allergies to reduce activities in areas with high pollen index and reduce allergic symptoms. Therefore, relevant and applicable pollen samplers need to be used in the existing sampling work to add convenience to the pollen sampling work.

At present, due to the low efficiency of pollen collection and the problems of capture preference and data accuracy differences, it lacks the function of continuous sampling work for multiple days when sampling, the continuous working ability of the device is insufficient, and the data collected for different times and days Pollen samples lack the function of classification and collection, which in turn affects the use in actual work.

Contents of the invention

In order to solve at least one of the aforementioned and other technical problems in the prior art, the present disclosure provides a pollen sampling device, which can realize long-term continuous sampling work and achieve reasonable control of the space used by the collection components.

An embodiment of the present disclosure provides a pollen sampling device, which includes: a cylinder body, a collection chamber suitable for collecting pollen is arranged in the cylinder body, and a plurality of first chambers communicating with the collection chamber are provided on the side wall of the cylinder body. A through hole is used to accommodate the above-mentioned pollen entering the above-mentioned collection chamber along the radial direction of the above-mentioned cylinder; the collection assembly is arranged in the above-mentioned collection chamber, and the part of the above-mentioned collection assembly that faces the above-mentioned first through hole is suitable for collection. The pollen passing through the first through hole; the first drainage assembly, including: a plurality of collection seats, each of the above-mentioned collection seats is arranged on the outside of one of the above-mentioned first through holes of the above-mentioned cylinder body, and the above-mentioned collection seats and the above-mentioned first through holes The facing part is provided with a second through hole, and the inside of the above-mentioned collection seat between the above-mentioned second through-hole and the above-mentioned first through-hole is provided with a first collection channel for accommodating the passage of pollen; the masking plate is installed on the above-mentioned first In the collection channel, it is configured to move between a shielding position that completely shields the second through hole and an open position that opens a part of the second through hole; wherein, the shielding plate is configured to be able to move relative to the above-mentioned The second through hole is moved so that the second through hole has different openings in different time periods, so as to allow the pollen to pass along the opening and attach to the area of the collection assembly facing the opening.

According to some embodiments of the present disclosure, a third through hole is provided on the masking plate, and in the orthographic projection along the extension direction of the first collection channel, the overlapping part of the second through hole and the third through hole is used as the aforementioned open portion.

According to some embodiments of the present disclosure, the above-mentioned masking plate is installed in the above-mentioned first collection channel, and is configured to move between the above-mentioned shielding position and the above-mentioned opening position relative to the above-mentioned second through hole in the vertical direction, and the above-mentioned masking plate The surface is provided with a toothed plate extending vertically; the above-mentioned first drainage assembly also includes: a first motor, arranged on the upper part of the above-mentioned first collection channel; and a gear, connected with the output shaft of the above-mentioned first motor, and connected to the The above-mentioned corrugated plate is meshedly connected, so that the above-mentioned mask plate is driven to move between the above-mentioned shielding position and the above-mentioned open position by the above-mentioned first motor.

According to some embodiments of the present disclosure, the above-mentioned first air drainage assembly further includes a first fan configured to form an airflow flowing from the above-mentioned second through hole to the above-mentioned collection chamber in the above-mentioned first collection channel, so as to form an airflow flowing from the above-mentioned second through hole to the above-mentioned collection cavity in the above-mentioned second channel Negative pressure is formed outside the hole, so that the pollen near the second through hole is sucked into the collection cavity.

According to some embodiments of the present disclosure, the above-mentioned collection component includes: a collection frame, the above-mentioned collection frame is arranged in the middle of the above-mentioned collection chamber; a plurality of sampling sheets are arranged around the side surface of the above-mentioned collection frame, for the Pollen is attached to the collecting position facing the open portion of the above-mentioned second through hole.

According to some embodiments of the present disclosure, at least a part of the sampling sheet is detachably mounted on the collection frame.

According to some embodiments of the present disclosure, the collection assembly further includes a rotating mechanism installed between the cylinder and the collection frame to drive the collection frame to rotate relative to the cylinder so that the sampling piece has multiple different collection Location.

According to some embodiments of the present disclosure, the rotation mechanism includes: a second motor installed on the bottom plate of the cylinder; a rotating disk connected to the output shaft of the second motor; wherein the collection frame is installed on the rotating disk , so as to rotate around the output shaft of the second motor along with the rotation.

According to some embodiments of the present disclosure, the pollen sampling device further includes: a cover body, which can be opened and closed on the top of the cylinder body, and a second collection channel communicating with the above-mentioned collection chamber is arranged on the above-mentioned cover body, which is suitable for containing the above-mentioned pollen Enter the above-mentioned collection chamber along the axial direction of the above-mentioned cylinder; and the second drainage assembly, including: a collection net, arranged in the above-mentioned second collection channel, for the adherence of pollen passing through the above-mentioned second collection channel.

According to some embodiments of the present disclosure, the above-mentioned second drainage assembly further includes a gravity sensor, and the above-mentioned collection net is installed in the above-mentioned second collection channel through the above-mentioned gravity sensor, so as to obtain the data collected by the above-mentioned collection net through the change of the weight of the above-mentioned collection net. weight of pollen.

According to a pollen sampling device provided in the present disclosure, by moving the masking plate relative to the second through hole in time sequence, the second through hole has different openings at different time periods, and pollen in different time periods can be attached to the collection component. The different areas facing the open part can realize long-term continuous pollen sampling work and achieve reasonable control of the space used by the collection components.

Description of drawings

FIG. 1 is a perspective view of a pollen sampling device according to an exemplary embodiment of the present disclosure;

Figure 2 is a cross-sectional view of the collection seat of the exemplary embodiment shown in Figure 1;

Fig. 3 is a perspective view of the combined state of the collection assembly and the collection cavity of the exemplary embodiment shown in Fig. 1;

Fig. 4 is a perspective view of the acquisition assembly of the exemplary embodiment shown in Fig. 1;

Figure 5 is a cross-sectional view of the collection assembly of the exemplary embodiment shown in Figure 1;

Fig. 6 is a perspective view of the combined state of the limit cover and the collecting seat of the exemplary embodiment shown in Fig. 1;

Figure 7 is a cross-sectional view of the limiter of the exemplary embodiment shown in Figure 1; and

Fig. 8 is a perspective view of the combined state of the limit cover and the cover in the exemplary embodiment shown in Fig. 1 .

In the accompanying drawings, the meanings of reference signs are as follows:

1. Cylinder body;

2. The first through hole;

3. Collection seat;

4. The second through hole;

5. Masking board;

6. The third through hole;

7. Toothed plate;

8. The first motor;

9. Gear;

10. The first fan; 11. The acquisition component;

111. Collection frame;

112. Sampling sheet;

113, cylinder;

114, rod body;

115, handle; 12, second motor; 13, rotating disk;

14. Cover body;

15. Collection network;

16. Gravity sensor; 17. Limit block; 18. Rotating ring;

19. Limit cover;

20. Connection board;

21. The third motor;

22. The second fan;

23. Insect trap lights;

24. Docking ring;

25. Limiting ring;

26. The first positioning ring;

27. Fixed block;

28. Sticky net;

29. The second positioning ring;

30. Bracket;

31. Base.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features, steps, operations and/or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted to have a meaning consistent with the context of this specification, and not be interpreted in an idealized or overly rigid manner.

Where an expression like "at least one of A, B, and C, etc." is used, it should generally be interpreted according to the meaning that those skilled in the art usually understand the expression. For example, "has among A, B, and C A "system of at least one" shall include, but not be limited to, systems having A alone, B alone, C alone, A and B, A and C, B and C, and/or A, B, C, etc. Where an expression similar to "at least one of A, B, or C, etc." is used, it should generally be interpreted according to the meaning generally understood by those skilled in the art. For example, "having A "system of at least one" shall include, but not be limited to, systems having A alone, B alone, C alone, A and B, A and C, B and C, and/or A, B, C, etc.

In order to solve the problem of continuous sampling of pollen, the present disclosure adopts the method of adjusting the position of the masking plate relative to the second through hole on the collecting seat, so that the second through hole has different openings in different time periods, and passes through the pollen in different time periods. The pollen entering through the second through hole can be adsorbed at different positions of the collection component, which can realize continuous pollen sampling work for a long time, and at the same time achieve reasonable control of the space used by the collection component.

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

FIG. 1 is a perspective view of a pollen sampling device according to an exemplary embodiment of the present disclosure.

According to an embodiment of the present disclosure, as shown in FIG. 1 , a pollen sampling device includes a cylinder body 1, and a collection chamber suitable for collecting pollen is arranged in the cylinder body 1, and a plurality of collection chambers are arranged on the side wall of the cylinder body. The connected first through hole 2 is used to accommodate pollen entering the collection cavity along the radial direction of the cylinder body 1 . The collecting component 11 is arranged in the collecting cavity, and the part of the collecting component 11 facing the first through hole 2 is suitable for collecting the pollen passing through the first through hole 2 . The first drainage assembly includes a plurality of collection seats 3, each collection seat 3 is arranged on the outside of a first through hole 2 of the cylinder body 1, and the part of the collection seat 3 facing the first through hole 2 is provided with a second The inside of the collecting seat 3 between the through hole 4 , the second through hole 4 and the first through hole 2 is provided with a first collection channel for receiving pollen to pass through. The shielding plate 5 is installed in the first collection channel, and is configured to move between a shielding position completely shielding the second through hole 4 and an open position opening a part of the second through hole 4 . The masking plate 5 is configured to be able to move relative to the second through hole 4 according to timing, so that the second through hole 4 has different openings in different time periods, so as to allow the pollen to pass through the opening and attach to the collecting assembly 11 and The area where the open parts face each other.

In an exemplary embodiment, the second through hole 4 includes but is not limited to being configured as a through hole or a uniform through hole plate structure.

According to an embodiment of the present disclosure, by adjusting the position of the masking plate 5 relative to the second through hole 4 on the collecting base 3 in time sequence, the second through hole 4 has different opening portions in different time periods, and in different time periods The pollen that enters through the second through hole 4 adheres to different areas of the collection component 11 facing the open part, and the area where the pollen sampling device is located in the corresponding time period can be reflected by obtaining pollen samples from different areas of the collection component 11 pollen dispersal.

In such an embodiment, it is possible to realize continuous pollen sampling work for a long time, and at the same time achieve reasonable control of the space used by the collection component 11 .

FIG. 2 is a cross-sectional view of the collection seat 3 of the exemplary embodiment shown in FIG. 1 .

According to an embodiment of the present disclosure, as shown in FIG. 2 , a third through hole 6 is provided on the masking plate 5 , and in the orthographic projection along the extension direction of the first collection channel, the second through hole 4 is in phase with the third through hole 6 . The overlapped portion serves as the open portion.

According to the embodiment of the present disclosure, the overlapping part of the second through hole 4 and the third through hole 6 disposed on the collecting seat 3 facing the first through hole 2 has different open parts in different time periods, and the pollen passes through different The open portion enters the first collection channel and is attached to the area of the collection assembly 11 facing the open portion.

In such an embodiment, the pollen attached to the collecting component 11 can be divided into areas from bottom to top, and pollen in different time periods can be attached to different areas of the collecting component 11 .

According to an embodiment of the present disclosure, as shown in FIG. 2 , the masking plate 5 is installed in the first collection channel and is configured to move in the vertical direction relative to the second through hole 4 between a shielding position and an open position. The surface of 5 is provided with corrugated plates 7 extending in the vertical direction. The first drainage assembly also includes a first motor 8, which is arranged on the upper part of the first collection channel. The gear 9 is connected to the output shaft of the first motor 8 and meshed with the corrugated plate 7 to drive the shielding plate 5 to move between the shielding position and the opening position through the first motor 8 .

According to an embodiment of the present disclosure, the gear 9 is connected to the output shaft of the first motor 8, and the gear 9 is meshed with the corrugated plate 7 so that the first motor 8 can drive the shielding plate 5 to move between the shielding position and the open position according to timing, To adjust the opening and closing of the first collection channel in the corresponding collection seat 3, the opening degree and the open part facing the collection component 11, so as to adapt to the continuous pollen sampling by the pollen sampling device for a long time.

According to an embodiment of the present disclosure, the first air drainage assembly further includes a first fan 10 configured to form an airflow flowing from the second through hole 4 to the collection cavity in the first collection channel, so that the air flow outside the second through hole 4 Negative pressure is formed so that the pollen near the second through hole 4 is sucked into the collection cavity.

According to an embodiment of the present disclosure, the first fan 10 is configured to be sleeved and installed on the first through hole 2 , including but not limited to being screwed on the collecting base 3 .

Fig. 3 is a perspective view of a combined state of the collection assembly and the collection cavity of the exemplary embodiment shown in Fig. 1 .

According to an embodiment of the present disclosure, the collection component 11 includes a collection frame 111 , and as shown in FIG. 3 , the collection frame 111 is disposed in the middle of the collection cavity. A plurality of sampling sheets 112 are arranged around the side surface of the collection frame 111 for the pollen passing through the first collection channel to adhere to the collection position facing the open portion of the second through hole 4 .

FIG. 4 is a perspective view of the acquisition assembly 11 of the exemplary embodiment shown in FIG. 1 .

According to an embodiment of the present disclosure, as shown in FIG. 4 , at least a part of the sampling sheet 112 is detachably installed on the collection frame 111 .

According to an embodiment of the present disclosure, as shown in FIG. 4 , the collection component 11 further includes a cylinder 113 disposed in the middle of the collection frame 111 . One end of the plurality of rods 114 is arranged around the outer surface of the cylinder 113 , and the other end is arranged on the inner wall of the collection frame 111 to support the collection frame 111 in a vertical state. A plurality of handles 115 are arranged on the inner wall of the top of the collection frame 111 so that the pollen on the sampling sheet 112 will not be affected when the collection frame 111 is disassembled to collect pollen.

In such an embodiment, a handle 115 is provided on the inner wall of the collection frame 111 , so that the collected pollen will not be polluted when the collection frame 111 is disassembled.

FIG. 5 is a cross-sectional view of the acquisition assembly 11 of the exemplary embodiment shown in FIG. 1 .

According to an embodiment of the present disclosure, the collection assembly 11 further includes a rotating mechanism installed between the cylinder body 1 and the collection frame 111 to drive the collection frame 111 to rotate relative to the cylinder body 1, so that the sampling piece 112 has multiple different collection positions .

According to an embodiment of the present disclosure, as shown in FIG. 5 , the rotating mechanism includes a second motor 12 installed on the bottom plate of the barrel 1 . The rotating disk 13 is connected with the output shaft of the second motor 12 . The collection frame 111 is mounted on the rotating disc 13 to rotate around the output shaft of the second motor 12 along with the rotating disc 13 .

According to an embodiment of the present disclosure, the collection frame 111 includes but is not limited to adopting a limit block 17 installed on the rotating disk 13, and the limit block 17 is fixedly installed on the rotating disk 13 to limit the collection frame 111 relative to the rotating disk 13. s position.

According to an embodiment of the present disclosure, a rotating ring 18 is disposed at the bottom of the rotating disk 13 , and the rotating ring rotates around the output shaft of the second motor 12 along with the rotating disk 13 .

According to the embodiment of the present disclosure, the collection frame 111 rotates with the rotary disk 13 around the output shaft of the second motor 12, and the collection sheet 112 rotates with the rotation of the collection frame 111. During the rotation of the sampling sheet 112, the surface and the cylinder The different first through holes 2 of the body 1 face each other.

In such an embodiment, the pollen collection on the surface of the sampling sheet 112 is uniform, avoiding the problem of uneven sampling on the surface of the sampling sheet 112 due to the difference in the amount of pollen entering a single through hole, and can realize the rational use of space for the sampling sheet 112. use.

According to an embodiment of the present disclosure, the pollen sampling device further includes a cover 14, which can be opened and closed on the top of the cylinder 1. The cover 14 is provided with a second collection channel communicating with the collection cavity, which is suitable for containing pollen along the cylinder. 1 into the collection chamber in the axial direction. The second drainage component includes a collection net 15, which is arranged in the second collection channel for the attachment of pollen passing through the second collection channel.

According to an embodiment of the present disclosure, the cover body 14 includes, but is not limited to, a top portion screwed to the cylinder body 1 .

FIG. 6 is a perspective view of a combined state of the limit cover 19 and the collecting seat 3 in the exemplary embodiment shown in FIG. 1 .

According to an embodiment of the present disclosure, as shown in FIG. 6 , the pollen sampling device further includes a limit cover 19, the limit cover 19 is arranged on the cover body 14, the second collection channel is arranged inside the limit cover 19, and the limit cover 19 The top of the top is provided with an opening, and the outer surface of the top opening is surrounded by ventilation holes to accommodate pollen entering the second collection channel. A connecting plate 20 is arranged on the ventilation hole around the top, and the third motor 21 is arranged at the top opening of the limiting cover 19 , and the connecting plate 20 is configured to connect the limiting cover 19 and the third motor 21 .

FIG. 7 is a cross-sectional view of the limit cover 19 of the exemplary embodiment shown in FIG. 1 .

According to an embodiment of the present disclosure, as shown in FIG. 7 , the second drainage assembly includes a collection net 15 , and the collection net 15 includes, but is not limited to, a bottom that is screwed to a limit cover 19 . The second air drainage assembly also includes a second fan 22 , which is connected to the output shaft of the third motor 21 and extends into the limit cover 19 . The second fan 22 is arranged opposite to the collection net 15 . The second fan 22 is configured to form an airflow flowing from the air hole to the second collection channel in the second collection channel, so as to form a negative pressure on the outside of the air hole, so that the pollen near the air hole is sucked into the second collection channel . The pollen sucked into the second collection channel is adsorbed on the collection net 15 .

According to an embodiment of the present disclosure, the second drainage assembly further includes a gravity sensor 16, and the collection net 15 is installed in the second collection channel through the gravity sensor 16, so as to obtain the pollen collected by the collection net 15 through the change in the weight of the collection net 15 the weight of.

According to the embodiment of the present disclosure, when the amount of pollen collected by the collection net 15 reaches saturation, the gravity sensor 16 will feed back to the external control device.

In such an embodiment, timely recovery of pollen can be achieved.

FIG. 8 is a perspective view of a combined state of the limit cover 19 and the cover 14 in the exemplary embodiment shown in FIG. 1 .

According to an embodiment of the present disclosure, as shown in FIG. 8 , an annular locking groove is formed on the upper surface of the cover 14 along the circumferential direction.

According to an embodiment of the present disclosure, as shown in FIG. 1 , the pollen sampling device also includes an insect repellent assembly, the mounting part of which is connected to the annular slot, and the insect repellent assembly includes an insect trap light 23, which is arranged around the on the installation part.

According to an embodiment of the present disclosure, as shown in FIG. 1 , the installation part includes a docking ring 24, which is configured to be connected with an annular slot, a limiting ring 25 is arranged on the docking ring 24, and an insect trap lamp 23 is arranged around it. On the limit ring 25.

According to an embodiment of the present disclosure, as shown in FIG. 1 , the first positioning ring 26 is connected to the limiting ring 25 through a fixing block 27 to keep the first positioning ring 26 and the limiting ring 25 in a parallel position. A sticky net 28 is arranged on the first positioning ring 26, and the sticky net 28 extends upwards from the first positioning ring 26. The sticky net 28 is configured to surround the insect trap lamp 23, so that mosquitoes are adhered to under the influence of the insect trap lamp 23 On sticky net 28. A second positioning ring 29 is arranged on the top of the sticky net 28 to limit the position movement of the sticky net 28 .

In such an embodiment, when the pollen sampling device is working at night, the mosquitoes are affected by the trap light 23 and fly to the vicinity of the sticky net 28 and adhere to the sticky net 28, which can prevent mosquitoes from getting stuck in the pollen sampling device to form a structure clogged. The portable disassembly design of the docking ring 24 can replace the sticky net 28 in time to ensure its efficient adsorption.

According to an embodiment of the present disclosure, as shown in FIG. 1 , the pollen sampling device further includes a bracket 30 configured to be connected with the barrel 1 to support the pollen sampling device. The base 31 is configured to be connected with the support 30, and the bottom of the base 31 is provided with a non-slip mat to keep the pollen sampling device in a stable state.

It should also be noted that the directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only referring to the directions of the drawings, not Used to limit the protection scope of this disclosure. Throughout the drawings, the same elements are indicated by the same or similar reference numerals. Conventional structures or constructions are omitted when they may obscure the understanding of the present disclosure.

The embodiments of the present disclosure have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the various embodiments have been described separately above, this does not mean that the measures in the various embodiments cannot be advantageously used in combination. The scope of the present disclosure is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present disclosure, and these substitutions and modifications should all fall within the scope of the present disclosure.

Claims (10)

1. A pollen sampling device, characterized in that, comprising: A cylinder, the cylinder is provided with a collection chamber suitable for collecting pollen, and the side wall of the cylinder is provided with a plurality of first through holes communicating with the collection chamber to accommodate the pollen along the cylinder. The radial direction of the body enters the collection cavity; A collection component, arranged in the collection cavity, the part of the collection component facing the first through hole is suitable for collecting pollen passing through the first through hole; The first drainage component, including: A plurality of collecting seats, each of which is arranged outside one of the first through holes of the cylinder body, and a second through hole is provided on the part of the collecting seats facing the first through hole. Holes, the inside of the collection seat between the second through hole and the first through hole is provided with a first collection channel for accommodating the passage of pollen; a shielding plate installed in the first collection channel and configured to move between a shielding position completely shielding the second through hole and an open position opening a part of the second through hole; Wherein, the masking plate is configured to be able to move relative to the second through hole in time sequence, so that the second through hole has different opening portions in different time periods, so as to allow the pollen to flow along the opening portion. through and attached to a region of the acquisition assembly facing the open portion. 2. The pollen sampling device according to claim 1, wherein a third through hole is provided on the masking plate, and in the orthographic projection along the extension direction of the first collection channel, the second through hole A portion overlapping with the third through hole serves as the open portion. 3. The pollen sampling device according to claim 1, wherein the shielding plate is installed in the first collection channel and is configured to be vertically opposite to the second through hole in the shielding position and the open position, the surface of the mask plate is provided with a toothed plate extending in the vertical direction; The first drainage assembly also includes: The first motor is arranged on the upper part of the first collection channel; and The gear is connected with the output shaft of the first motor, and meshed with the toothed plate, so as to drive the shielding plate to move between the shielding position and the opening position through the first motor. 4. The pollen sampling device according to claim 1, wherein the first drainage assembly further comprises a first fan configured to form a flow from the second through hole to the first collection channel in the first collection channel. The air flow flowing in the collection cavity is used to form a negative pressure outside the second through hole, so that the pollen near the second through hole is sucked into the collection cavity. 5. The pollen sampling device according to claim 1, wherein the collection assembly comprises: A collection frame, the collection frame is set in the middle of the collection cavity; A plurality of sampling sheets are arranged around the side surface of the collection frame, for the pollen passing through the first collection channel to adhere to the collection position facing the open part of the second through hole. 6. The pollen sampling device according to claim 5, characterized in that at least a part of the sampling sheets are detachably mounted on the collection frame. 7. The pollen sampling device according to claim 5, wherein the collection assembly further comprises a rotating mechanism installed between the barrel and the collection frame to drive the collection frame relative to the The cylinder rotates so that the sampling chip has a plurality of different collection positions. 8. The pollen sampling device according to claim 7, wherein the rotating mechanism comprises: The second motor is installed on the bottom plate of the cylinder; a rotating disk connected to the output shaft of the second motor; Wherein, the collection frame is installed on the rotating disk to rotate around the output shaft of the second motor along with the rotating disk. 9. The pollen sampling device according to claim 5, further comprising: A cover, which can be opened and closed on the top of the cylinder, is provided with a second collection channel communicating with the collection cavity, and is suitable for accommodating the pollen entering along the axial direction of the cylinder. the collection chamber; and The second drainage component, including: The collection net is arranged in the second collection channel for the attachment of pollen passing through the second collection channel. 10. The pollen sampling device according to claim 9, wherein the second drainage assembly further comprises a gravity sensor, and the collection net is installed in the second collection channel through the gravity sensor, so as to pass through the pollen sampling device. The weight of the pollen collected by the collection net is obtained by changing the weight of the collection net.

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