Extraction device for pollen of fruit trees

Abstract

The utility model discloses a fruit tree pollen extraction device which comprises a separation barrel, a plurality of fruit tree pollens, a plurality of fruit tree pollens, a plurality of fruit tree pollens, a plurality of fruit tree pollens and a plurality of fruit tree pollens, a screen drum is arranged at the upper part in the separation barrel, an air injection rod is arranged outside the screen drum, a net cleaning brush is arranged in the screen drum, and the air injection rod and the net cleaning brush respectively rotate along the outer wall and the inner wall of the screen drum through a driving mechanism; a ventilation plate and a wind shield are mounted at the bottom of the separation barrel in a drawable manner; at least one ultraviolet sterilization lamp tube is further arranged in the separation barrel corresponding to the lower part of the screen drum; the inlet of the first-stage cyclone separator is communicated with the discharge hole of the separation barrel, and a powder storage bottle is arranged at the bottom of each stage of cyclone separator; an inlet of the pollen recycling and filtering box is communicated with an outlet of the last-stage cyclone separator through a hard pipeline, a filtering layer is arranged in the pollen recycling and filtering box, and the bottom of the pollen recycling and filtering box is communicated with an air draft system. According to the utility model, the cleaning efficiency of the screen drum and the pollen recovery efficiency are effectively improved, and the pollen recovery quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to a device for extracting fruit tree pollen. Background Art

[0002] With the development of science and technology and the refined management of agricultural production, the extraction and recovery technology of fruit tree pollen has received increasing attention. Existing patent CN204746792U discloses a plant pollen filtration and recovery device, which is mainly used for filtering and recovering plant pollen. However, it still has the following shortcomings in actual use:

[0003] 1. Incomplete cleaning of the screen: Although the patent adopts an inverted U-shaped cover to clean the outer wall of the screen, it is difficult to remove the debris or anther shells attached to the inner wall of the screen, which can easily lead to malfunction or reduced efficiency of the filter device, thereby affecting the extraction of pollen;

[0004] 2. Unstable efficiency of cyclone separator: The existing patent uses a single cyclone separator. During the pollen separation process, the fluctuation of the air intake reduces the efficiency of the cyclone separator. As a result, the pollen cannot be completely separated and enter the pollen storage bottle, and is lost from the exhaust pipe, resulting in waste of pollen.

[0005] 3. The design of the separation barrel feed port is unreasonable: the separation barrel and feed port in the existing patent are installed vertically. When the anthers enter, they will directly reach the filter screen with the air flow, quickly clogging the filter screen, thus affecting the separation efficiency;

[0006] 4. Unreasonable design of air circulation duct: The existing patent uses a universal hose as the air circulation duct, but due to the poor strength of the hose, it is often sucked flat by the high negative pressure, resulting in the pollen recovery work having to stop;

[0007] 5. Pollen collection bags are easily damaged: The strong suction force of the exhaust motor may damage the pollen collection bag, resulting in increased machine downtime and reduced utilization. Once the collection bag is damaged, it cannot effectively prevent the pollen from escaping after separation, resulting in waste of pollen.

[0008] Therefore, there is an urgent need for an extraction device for fruit tree pollen. Utility Model Content

[0009] In view of the deficiencies in the prior art, the utility model provides a device for extracting fruit tree pollen.

[0010] The utility model discloses a device for extracting fruit tree pollen, comprising:

[0011] A separation barrel is provided with a feed pipe on one side, and the feed pipe is arranged tangentially to the separation barrel; a sieve drum is provided on the upper inner portion of the separation barrel, an air jet rod for cleaning the outer wall of the sieve drum is provided on the outer side of the sieve drum, and a screen cleaning brush for cleaning the inner wall of the sieve drum is provided on the inner side of the sieve drum, and the air jet rod and the screen cleaning brush are respectively rotated along the outer wall and the inner wall of the sieve drum by a driving mechanism; a ventilation plate and a wind shield are retractably installed on the bottom of the separation barrel, and at least one ultraviolet sterilization lamp is further provided in the separation barrel below the sieve drum;

[0012] At least two stages of cyclone separators, the inlet of the first stage cyclone separator is connected to the discharge port of the separation barrel, and a powder storage bottle is provided at the bottom of each stage of the cyclone separator;

[0013] A pollen recovery filter box, the inlet of which is connected to the outlet of the last-stage cyclone separator through a hard pipe, a filter layer is arranged inside the pollen recovery filter box, and the bottom of the pollen recovery filter box is connected to the exhaust system.

[0014] As a further improvement of the present invention, it further comprises a main box, wherein the separation barrel is installed on the upper part of one end of the main box, and a pollen recovery filter box is installed on the upper part of the other end;

[0015] The bottom end of the separation barrel is placed in the main box and is fixedly installed by a fixing plate, and the fixing plate is provided with a through hole corresponding to the bottom opening of the separation barrel; baffles are provided below the corresponding fixing plates on both sides of the main box, and a first track is formed between the two baffles and the upper fixing plate, and the ventilation plate can be pulled out and placed in the first track and fit with the bottom end of the separation barrel; the two sides of the ventilation plate are bent downward to form a second track, and the wind shield can be pulled out and placed in the second track;

[0016] The exhaust system is provided in the main box at the bottom corresponding to the pollen recovery filter box, and the exhaust system is communicated with the bottom of the pollen recovery filter box.

[0017] As a further improvement of the present invention, the ventilation plate is evenly distributed with a plurality of ventilation holes at the bottom opening corresponding to the separation barrel, and the distribution area of ​​the plurality of ventilation holes matches the inner diameter area of ​​the separation barrel.

[0018] As a further improvement of the present invention, the jet rod is in an "N"-shaped structure, the jet rod cover is on the outside of the sieve drum, the vertical rods on both sides of the jet rod are placed between the sieve drum and the cylinder wall of the separation barrel, and the vertical rods on both sides are provided with a plurality of jet holes on the side facing the sieve drum; the cross bar of the jet rod is connected to the drive mechanism after passing through the top cover of the separation barrel via a transmission rod;

[0019] The screen cleaning brush is placed on the inner side of the screen cylinder, and the upper end of the screen cleaning brush passes through the screen cylinder and is connected to a transmission block. The top of the transmission block is provided with a concave rotation groove corresponding to the cross bar. When the top cover of the separation barrel is closed in place, the cross bar falls into the concave rotation groove and can drive the vertical rods and the screen cleaning brushes on both sides to rotate synchronously through the driving mechanism.

[0020] As a further improvement of the present invention, the screen cleaning brush is a frame-shaped structure, and the upper end of the screen cleaning brush passes through the top center of the screen cylinder and is connected to the transmission block; the screen cleaning brush can rotate synchronously with the air jet rod through the transmission block and clean the inner wall of the screen cylinder.

[0021] As a further improvement of the present invention, an inner flange is provided in the separation barrel corresponding to the bottom of the sieve drum, and the bottom of the sieve drum is fixedly mounted on the inner flange;

[0022] At least one ultraviolet sterilization lamp is fixedly installed below the inner flange.

[0023] As a further improvement of the present invention, the pollen recovery filter box includes a box body and a box cover arranged above the box body, and an inlet is provided on one side of the box body, and the inlet is connected to the top outlet of the last stage cyclone separator through the hard pipe;

[0024] A plurality of air filter elements are provided in the box body, and the plurality of air filter elements constitute the filter layer. The bottom of the box body is connected to the exhaust system.

[0025] As a further improvement of the present invention, the exhaust system includes at least one exhaust motor, and the air inlet of the exhaust motor is connected to the bottom of the pollen recovery filter box.

[0026] As a further improvement of the utility model, it also includes a power program control box;

[0027] The power program control box is placed on one side of the pollen recovery filter box and is fixedly installed on the top of the main box.

[0028] As a further improvement of the present invention, the feed pipe is arranged on one side of the separation barrel close to the bottom and is tangent to the separation barrel; the feed pipe is connected to a trumpet-shaped suction port through a feed hose.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The utility model discloses by arranging the air-jet rod and the screen-cleaning brush, can not only clean the outer wall of the sieve drum, but also perform contact cleaning on the inner wall of the sieve drum, can effectively improve the cleaning efficiency of the sieve drum, and avoids the problem of malfunction or reduced efficiency of the filtering device caused by the difficulty in removing the debris or anther shell attached to the inner wall of the sieve drum.

[0031] The utility model arranges the feed pipe of the separation barrel tangently thereto, so that the anthers can spirally rise on the inner wall of the separation barrel, while the pollen quickly rises in the center of the separation barrel, thereby solving the problem that the sieve cylinder is easily blocked during the working process; and by arranging at least one ultraviolet sterilization lamp in the separation barrel, the barrel wall of the separation barrel can be sterilized in real time, so that the extracted pollen is not invaded by harmful bacteria, thereby improving the quality of the pollen.

[0032] The utility model provides at least two stages of cyclone separators for step-by-step separation, thereby solving the problem of pollen escape caused by decreased separation efficiency due to air fluctuations, and maximally improving the extraction efficiency of pollen. By adopting a hard pipe connection between the final cyclone separator and the pollen recovery filter box, the pipe is prevented from being deformed and flattened. At the same time, the provision of the pollen recovery filter box and its internal filter layer also avoids the problem of easy damage to the pollen collection bag, greatly improving the working efficiency of the pollen extraction device, ensuring sufficient recovery of pollen, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0034] Figure 2 This is a front view of the structure of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0035] Figure 3 This is a left side view of the structure of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0036] Figure 4 This is a right side view of the structure of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0037] Figure 5 This is a top view of the structure of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0038] Figure 6 This is a side sectional view of the structure of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0039] Figure 7 This is a schematic structural diagram of a sieve drum, ventilation plate, and wind shield plate of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0040] Figure 8 This is a schematic structural diagram of a net cleaning brush, an air jet rod, a transmission block and a reduction motor of a device for extracting fruit tree pollen disclosed in one embodiment of the utility model;

[0041] Figure 9 The present invention is a schematic structural diagram of a transmission block of a device for extracting fruit tree pollen according to an embodiment of the present invention.

[0042] In the picture:

[0043] 1. Separation barrel; 1-1. Barrel body; 1-2. Barrel cover; 2. First-stage cyclone separator; 3. Final-stage cyclone separator; 4. Pollen recovery filter box; 4-1. Box body; 4-2. Box cover; 4-3. Air filter element; 5. Main box; 5-1. Baffle; 5-2. First track; 6. Power program control box; 7. Exhaust motor; 8. Feed pipe; 9. Hard pipe; 10. Powder storage bottle; 11. Flange; 12. Fixing plate; 13. Ventilation Wind plate; 13-1, second track; 13-2, ventilation holes; 14, wind shield; 15, reduction motor; 16, 360° rotating head; 17, screen drum; 18, air jet rod; 18-1, air jet hole; 19, screen cleaning brush; 20, inner flange; 21, ultraviolet germicidal lamp; 22, transmission block; 22-1, concave rotating groove; 23, feed hose; 24, trumpet-shaped suction port; 25, outer flange; 26, fixing bracket. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] The present invention is described in further detail below with reference to the accompanying drawings:

[0048] like Figure 1-6 As shown, according to the utility model, a device for extracting fruit tree pollen includes a separation barrel 1, at least two-stage cyclone separators, and a pollen recovery filter box 4, wherein a feed pipe 8 is provided on one side of the separation barrel 1, and the feed pipe 8 is arranged tangentially to the separation barrel 1; a sieve drum 17 is provided on the upper inner portion of the separation barrel 1, an air jet rod 18 for cleaning the outer wall of the sieve drum 17 is provided on the outer side of the sieve drum 17, and a cleaning brush 19 for cleaning the inner wall of the sieve drum 17 is provided on the inner side of the sieve drum 17; the air jet rod 18 and the cleaning brush 19 are respectively rotated along the outer wall and inner wall of the sieve drum 17 by a driving mechanism; the separation barrel 17 is provided with a feed pipe 8, and the feed pipe 8 is arranged tangentially to the separation barrel 1; a sieve drum 17 is provided on the upper inner portion of the separation barrel 17, and an air jet rod 18 for cleaning the outer wall of the sieve drum 17 is provided on the outer side of the sieve drum 17, and a cleaning brush 19 for cleaning the inner wall of the sieve drum 17 is provided on the inner side of the sieve drum 17; the air jet rod 18 and the cleaning brush 19 are respectively rotated along the outer wall and inner wall of the sieve drum 17 by a driving mechanism; A ventilation plate 13 and a wind shield 14 are removably installed at the bottom of the barrel 1, and at least one ultraviolet sterilization lamp 21 is provided below the corresponding screen cylinder 17 in the separation barrel 1; the inlet of the first-stage cyclone separator 2 in at least two-stage cyclone separators is connected to the discharge port of the separation barrel 1, and a powder storage bottle 10 is installed at the bottom of each stage of the cyclone separator through a flange 11; the inlet of the pollen recovery filter box 4 is connected to the outlet of the final cyclone separator 3 through a hard pipe 9, and a filter layer is provided in the pollen recovery filter box 4, and the bottom of the pollen recovery filter box 4 is connected to the exhaust system.

[0049] In this embodiment, by arranging the air jet rod 18 and the cleaning brush 19, not only the outer wall of the sieve drum 17 can be cleaned, but also the inner wall of the sieve drum 17 can be cleaned in a contact manner, which can effectively improve the cleaning efficiency of the sieve drum 17 and avoid the problem of filtration device failure or reduced efficiency due to the difficulty in removing the debris or anther shell attached to the inner wall of the sieve drum 17; by arranging the feed pipe 8 of the separation barrel 1 tangentially thereto, the anther can be spirally risen on the inner wall of the separation barrel 1, and the pollen can be quickly risen in the center of the separation barrel 1, which solves the problem that the sieve drum 17 is easily blocked during the working process; by arranging at least one ultraviolet sterilization lamp 21 in the separation barrel 1, the separation barrel 1 can be cleaned in real time. The barrel wall of the barrel 1 is sterilized and disinfected, so that the extracted pollen is not invaded by harmful bacteria, thereby improving the quality of the pollen; by setting at least two stages of cyclone separators for step-by-step separation, the problem of pollen escape caused by the decrease in separation efficiency due to air fluctuations is solved, and the extraction efficiency of the pollen is maximized; by using a hard pipe 9 to connect between the final cyclone separator 3 and the pollen recovery filter box 4, the pipe is prevented from being deformed and flattened. At the same time, the setting of the pollen recovery filter box 4 and its internal filter layer also avoids the problem of easy damage to the pollen collection bag, greatly improving the working efficiency of the pollen extraction device, ensuring the full recovery of pollen, and reducing production costs.

[0050] Specifically:

[0051] like Figure 1-6 As shown, in the above embodiment, preferably, the separation barrel 1 and at least two stages of cyclone separators are fixed to each other by a fixing frame 26, an outlet is provided on the top of each stage of cyclone separator, and an inlet is provided on the side near the top of each stage of cyclone separator. In this embodiment, the first-stage cyclone separator 2 and the last-stage cyclone separator 3 are connected in series through a hard pipe 9.

[0052] like Figure 7-8As shown, in the above embodiment, preferably, a main case 5 is further included, wherein a separation barrel 1 is installed on the upper part of one end of the main case 5, and a pollen recovery filter box 4 is installed on the upper part of the other end; wherein, the bottom end of the separation barrel 1 passes through the top shell of the main case 5 in the vertical direction and is placed in the main case 5, and is installed in the main case 5 through a fixing plate 12, and the fixing plate 12 is provided with a through hole at the bottom opening of the separation barrel 1; baffles 5-1 are provided below the fixing plates 12 on both sides of the main case 5, and the two baffles 5-1 are along the main case 5. It is laid in the length direction, and the two baffles 5-1 are parallel to the fixed plate 12 and arranged at a certain interval with the fixed plate 12 to form a first track 5-2. The ventilation plate 13 can be pulled out and placed in the first track 5-2 and fit with the bottom end of the separation barrel 1; the two sides of the ventilation plate 13 are bent downward to form a second track 13-1, and the wind shield 14 can be pulled out and placed in the second track 13-1; an exhaust system is provided at the bottom of the main chassis 5 corresponding to the pollen recovery filter box 4, and the exhaust system is communicated with the bottom of the pollen recovery filter box 4.

[0053] In the above embodiment, preferably, the ventilation plate 13 has multiple ventilation holes 13-2 evenly distributed at the bottom opening corresponding to the separation barrel 1, and the distribution area of ​​the multiple ventilation holes 13-2 matches the inner diameter area of ​​the separation barrel 1; the wind shield 14 is a closed plate with an area equal to that of the ventilation plate 13; in this embodiment, in order to facilitate the pulling and pulling of the ventilation plate 13 and the wind shield 14, upward or downward pull handles are respectively provided at the ends of the ventilation plate 13 and the wind shield 14.

[0054] In the above embodiment, the jet bar 18 preferably has an "n"-shaped structure. During actual installation, the jet bar 18 covers the outside of the sieve drum 17. The vertical bars on both sides of the jet bar 18 are respectively placed between the sieve tower 17 and the wall of the separation drum 1, and a plurality of jet holes 18-1 are provided on the side of the vertical bars on both sides facing the sieve drum 17. The cross bar above the jet bar 18 passes through the center of the barrel cover 1-2 of the separation drum 1 via a transmission rod and is connected to the drive mechanism. In this embodiment, the drive mechanism includes a reduction motor 15 and a 360° rotating head 16 connected to the reduction motor 15. The reduction motor 15 and the 360° rotating head 16 are fixedly mounted on the top cover 1-1 of the separation drum 1. A high-pressure gas inlet is provided above the 360° rotating head 16 in this embodiment. The high-pressure gas enters the jet bar 18 through the 360° rotating head 16 and cleans the outer wall of the sieve drum 17 through the multiple jet holes 18-1 on both sides of the jet bar 18.

[0055] In the above embodiment, preferably, the cleaning brush 19 is of a frame-shaped structure and is adapted to the inside of the screen drum 17; to ensure that the inner wall of the screen drum 17 can be cleaned in a contact manner; the upper end of the cleaning brush 19 passes through the center of the screen drum 17 through the bearing and the bearing sleeve, and is fixed to the transmission block 22 located above the screen drum 17 by a top screw, and the top of the transmission block 22 is provided with a concave rotating groove 22-1 adapted to the cross bar of the air jet rod 18; when the top cover 1-1 of the separation barrel 1 is closed in place, the cross bar of the air jet rod 18 falls into the concave rotating groove 22-1 (as shown in FIG. Figure 9 As shown), the vertical rods on both sides and the cleaning brush 19 can be driven by a driving mechanism to rotate synchronously to achieve simultaneous cleaning of the inner and outer walls of the screen drum 17.

[0056] like Figure 7 As shown, in the above embodiment, preferably, an inner flange 20 is provided at the bottom of the separation barrel 1 corresponding to the sieve drum 17, and the bottom of the sieve drum 17 is fixedly mounted on the upper end surface of the inner flange 20; at least one ultraviolet sterilization lamp 21 is fixedly mounted below the inner flange 20; the contact portion between the separation barrel 1 and the top of the main body housing 5 is mounted and fixed via an outer flange 25.

[0057] In the above embodiment, preferably, when multiple ultraviolet sterilization lamps 21 are installed, the multiple ultraviolet sterilization lamps 21 are evenly distributed in the separation barrel 1 along the inner wall of the separation barrel 1 to achieve effective sterilization of the separation barrel 1.

[0058] In the above embodiment, preferably, the separation barrel 1 includes a barrel body 1-1 and a barrel cover 1-2 placed above the barrel body 1-1.

[0059] In the above embodiment, preferably, the pollen recovery filter box 4 includes a box body 4-1 and a box cover 4-2 arranged above the box body 4-1. An inlet is provided on one side of the box body 4-1, and the inlet is connected to the top outlet of the final cyclone separator 3 through a hard pipe 9; a plurality of air filter elements 4-3 are provided in the box body 4-1, and the plurality of air filter elements 4-3 constitute a filter layer, and the bottom of the box body 4-1 is connected to the exhaust system.

[0060] In the above embodiment, preferably, the exhaust system includes at least one exhaust motor 7, and the air inlet of the exhaust motor 7 is connected to the bottom of the box body 4-1 of the pollen recovery filter box 4; during actual installation, the exhaust motor 7 is fixed to the bottom of the box body 4-1 of the pollen recovery filter box 4 by bolts and placed in the main box 5.

[0061] In the above embodiment, preferably, a power program control box 6 is further included; the power program control box 6 is placed on one side of the pollen recovery filter box 4 and fixedly mounted on the top of the main body housing 5. The power program control box 6 in this embodiment is used for the programmed start operation of the extraction device.

[0062] In the above embodiment, preferably, the feed pipe 8 is arranged on a side of the separation barrel 1 close to the bottom and is arranged tangentially to the separation barrel 1; the feed pipe 8 is connected to a trumpet-shaped suction port 24 through a feed hose 23.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for extracting fruit tree pollen, characterized in that: include: A separation barrel, one side of which is provided with a feed pipe, the feed pipe is arranged tangentially to the separation barrel; a sieve cylinder is provided at the upper inner part of the separation barrel, an air jet rod for cleaning the outer wall of the sieve cylinder is provided on the outer side of the sieve cylinder, a screen cleaning brush for cleaning the inner wall of the sieve cylinder is provided on the inner side of the sieve cylinder, the air jet rod and the screen cleaning brush are respectively rotated along the outer wall and the inner wall of the sieve cylinder through a driving mechanism; a ventilation plate and a wind shield plate are retractably installed at the bottom of the separation barrel, and at least one ultraviolet sterilization lamp is also provided in the separation barrel below the sieve cylinder; At least two stages of cyclone separators, the inlet of the first stage of the cyclone separator is connected to the discharge port of the separation barrel, and a powder storage bottle is provided at the bottom of each stage of the cyclone separator; A pollen recovery filter box, the inlet of which is connected to the outlet of the final cyclone separator through a hard pipe, a filter layer is arranged inside the pollen recovery filter box, and the bottom of the pollen recovery filter box is connected to the exhaust system.

2. The device for extracting fruit tree pollen according to claim 1, characterized in that: It also includes a main box, the separation barrel is installed on the upper part of one end of the main box, and a pollen recovery filter box is installed on the upper part of the other end; The bottom end of the separation barrel is placed in the main box and fixedly installed by a fixing plate, and the fixing plate is provided with a through hole at the bottom opening corresponding to the separation barrel; baffles are provided below the fixing plates on both sides corresponding to the main box, and a first track is formed between the two baffles and the fixing plate above, and the ventilation plate can be pulled out and placed in the first track and fit with the bottom end of the separation barrel; the two sides of the ventilation plate are bent downward to form a second track, and the wind shield can be pulled out and placed in the second track; The exhaust system is provided in the main housing at the bottom corresponding to the pollen recovery filter box, and the exhaust system is communicated with the bottom of the pollen recovery filter box.

3. The device for extracting fruit tree pollen according to claim 1 or 2, characterized in that: The ventilation plate is evenly distributed with a plurality of ventilation holes at the bottom opening corresponding to the separation barrel, and the distribution area of ​​the plurality of ventilation holes matches the inner diameter area of ​​the separation barrel.

4. The device for extracting fruit tree pollen according to claim 1, characterized in that: The jet rod is in an "n"-shaped structure, the jet rod cover is on the outside of the screen drum, the vertical rods on both sides of the jet rod are placed between the screen drum and the cylinder wall of the separation barrel, and the vertical rods on both sides are provided with a plurality of jet holes on the side facing the screen drum; the cross bar of the jet rod is connected to the driving mechanism after passing through the top cover of the separation barrel through a transmission rod; The net cleaning brush is placed on the inner side of the screen cylinder, and the upper end of the net cleaning brush passes through the screen cylinder and is connected to a transmission block, and a concave rotation groove is provided on the top of the transmission block corresponding to the cross bar; when the top cover of the separation barrel is closed in place, the cross bar falls into the concave rotation groove, and can drive the vertical rods and the net cleaning brush on both sides to rotate synchronously through the driving mechanism.

5. The device for extracting fruit tree pollen according to claim 4, characterized in that: The screen cleaning brush is in a frame-shaped structure, and the upper end of the screen cleaning brush passes through the top center of the screen cylinder and is connected to the transmission block; the screen cleaning brush can rotate synchronously with the air jet rod through the transmission block and clean the inner wall of the screen cylinder.

6. The device for extracting fruit tree pollen according to claim 1, characterized in that: An inner flange is provided in the separation barrel corresponding to the bottom of the sieve drum, and the bottom of the sieve drum is fixedly mounted on the inner flange; At least one ultraviolet sterilization lamp is fixedly installed below the inner flange.

7. The device for extracting fruit tree pollen according to claim 1, characterized in that: The pollen recovery filter box includes a box body and a box cover arranged above the box body, and an inlet is arranged on one side of the box body, and the inlet is connected to the top outlet of the last stage cyclone separator through the hard pipe; A plurality of air filter elements are arranged in the box body, and the plurality of air filter elements constitute the filter layer. The bottom of the box body is connected to the exhaust system.

8. The device for extracting fruit tree pollen according to claim 1, 2 or 7, characterized in that: The exhaust system includes at least one exhaust motor, and the air inlet of the exhaust motor is connected to the bottom of the box body of the pollen recovery filter box.

9. The device for extracting fruit tree pollen according to claim 2, characterized in that: Also includes a power program control box; The power program control box is placed on one side of the pollen recovery filter box and is fixedly installed on the top of the main box.

10. The device for extracting fruit tree pollen according to claim 1, characterized in that: The feed pipe is arranged on one side of the separation barrel close to the bottom and is arranged tangent to the separation barrel; the feed pipe is connected with a trumpet-shaped suction port through a feed hose.

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