A gas exchange device for broiler breeding shed and its use method

Abstract

The present invention discloses a broiler chicken breeding shed gas exchange device and its use method, which relates to the field of poultry breeding technology, including a ventilation box, one end of which is provided with a virus detection mechanism; the virus detection mechanism includes a protective box, a first curved filter cartridge, a second curved filter cartridge, a second sample collection dish, a first sample collection dish, an adjustment gear rod, a first ratchet, a liquid feeding fan rod and a liquid spray pipe; the protective box is located at one end of the ventilation box, and a first curved filter cartridge and a second curved filter cartridge are respectively provided above and below one end of the inner cavity of the protective box, one end of the bottom of the first curved filter cartridge is clamped with the second sample collection dish, and one end of the top of the second curved filter cartridge is clamped with the first sample collection dish. The beneficial effects of the present invention are: it is convenient to detect whether the gas contains viruses during the gas exchange process, and it is convenient to take corresponding protective measures for the broilers raised in the broiler chicken shed in a timely manner when the virus is found.

Description

Technical Field

[0001] The present invention relates to the technical field of poultry breeding, and in particular to a gas exchange device in a broiler breeding shed and a method for using the device. Background Art

[0002] Broilers are a type of chicken with a high feed conversion rate. In large-scale broiler farming, the breeding space in the chicken shed is often utilized as much as possible, and the chicken shed is set up into a multi-row and multi-layer structure. Although such a chicken shed can achieve high-yield breeding effects, its high-density breeding will inevitably cause broilers to become sick. Therefore, the prevention of broiler diseases in high-density breeding is very important, among which ventilation is the top priority of disease prevention.

[0003] Most of the existing gas exchange devices in broiler chicken breeding sheds only have the effect of heat dissipation and ventilation, with a single function, and the effect of preventing broiler diseases is low. For some diseases that have no obvious symptoms at the beginning and only show symptoms after the disease becomes serious, if they are not discovered in time and timely response measures are not taken, the virus may be transmitted to other broilers in the same chicken shed through the ventilation airflow. At this time, gas exchange may not be able to achieve the effect of preventing diseases for other broilers. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a gas exchange device for broiler breeding sheds and a method for using the same, so as to solve the technical problem that the existing gas exchange devices for broiler breeding sheds mostly only have the effect of heat dissipation and ventilation, have a single function, and can achieve a low effect in preventing broiler diseases. For some diseases that have no obvious symptoms initially and only show symptoms after the disease becomes serious, if they cannot be discovered in time and timely response measures are not taken, the virus may be transmitted to other broilers in the same chicken shed along with the ventilation airflow. At this time, the gas exchange may not be able to achieve the effect of preventing diseases for other broilers.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a gas exchange device for broiler chicken farming in a shed and a method for using the same, comprising a ventilation box, one end of which is provided with a virus detection mechanism;

[0006] The virus detection mechanism includes a protective box, a first curved filter cartridge, a second curved filter cartridge, a second sample collection dish, a first sample collection dish, an adjustment gear rod, a first ratchet, a liquid feeding fan rod and a liquid spray pipe;

[0007] The protection box is located at one end of the ventilation box, and two first curved filter cartridges and two second curved filter cartridges are respectively provided above and below one end of the inner cavity of the protection box, one end of the bottom of the first curved filter cartridge is clamped with a second sample collection dish, and one end of the top of the second curved filter cartridge is clamped with a first sample collection dish, a first exhaust pipe is provided above one end of the protection box, a second exhaust pipe is provided below the first exhaust pipe, the first curved filter cartridge is located between the first exhaust pipe and the second exhaust pipe, a second air inlet pipe is provided below one end of the protection box, a first air inlet pipe is provided above the second air inlet pipe, and the second curved filter cartridge is located between the first air inlet pipe and the second air inlet pipe;

[0008] The adjusting gear rod is located between the first sample collection dish and the second sample collection dish, and the outer side of one end of the adjusting gear rod is respectively engaged with the lower side of one end of the first arc-shaped filter cartridge and the upper side of one end of the second arc-shaped filter cartridge; a liquid spray pipe passes through the inner cavity of the adjusting gear rod, and a first ratchet is provided on the top of the other end of the adjusting gear rod, and a liquid feeding fan rod is provided in the middle of the first ratchet.

[0009] The present invention is further configured such that one end of the second curved filter cartridge is rotatably connected to a mounting positioning plate, the first curved filter cartridge and the second curved filter cartridge are respectively located above and below the mounting positioning plate, a limiting block is provided obliquely above the first curved filter cartridge and obliquely below the second curved filter cartridge, and a honeycomb filter core tube is provided on the inner side of the first curved filter cartridge and the second curved filter cartridge.

[0010] The present invention is further configured such that a motor is fixedly connected to the middle of one end of the first ratchet, a ratchet groove is provided in the middle of one end of the first ratchet, the middle of the ratchet groove is rotatably connected to the middle of one end of the liquid-feeding fan rod, a first pawl is rotatably connected to one side of one end of the liquid-feeding fan rod, and the outer side of the first pawl is engaged with the inner wall of the ratchet groove.

[0011] The present invention is further configured such that a plurality of second pawls are rotatably connected to the outer side of the first ratchet, and the first ratchet is meshedly connected to the other end of the adjusting gear rod via the second pawls.

[0012] The present invention is further configured such that a plurality of fan blades are fixedly connected to the outer side of one end of the liquid-feeding fan rod, a water delivery cavity is provided on the outer side of the fan blades, and a liquid storage tank is provided on the top of the water delivery cavity.

[0013] The present invention is further configured such that the ventilation box and the protection box are connected via a first exhaust pipe and a first air intake pipe provided at upper and lower ends respectively.

[0014] The present invention is further configured such that a valve plate is provided at the liquid inlet at one end of the first sample collection dish, the top of the valve plate is slidably connected to the top of the inner end of the first sample collection dish, and one end of the outer side of the second arc-shaped filter cartridge is fixedly connected to a pushing ball block, and the pushing ball block can be slidably connected to one end of the top of the valve plate.

[0015] In summary, the present invention mainly has the following beneficial effects: it is convenient to detect whether the gas contains viruses during the gas exchange process, and it is convenient to take corresponding protective measures for broilers raised in the broiler shed in time when the virus is found.

[0016] The present invention uses a virus detection mechanism. When in use, when internal air flows through the first curved filter cartridge, the bacteria and viruses contained in the air will be adsorbed in the first curved filter cartridge. When the air outside the chicken shed passes through the second curved filter cartridge during the air intake process, the bacteria and viruses contained in the air will be adsorbed in the wall cavity of the second curved filter cartridge. During detection, the first ratchet rotating clockwise drives the adjusting gear rod to rotate, thereby driving the first curved filter cartridge and the second curved filter cartridge to rotate synchronously by 180 degrees and respectively get stuck above the second sample collection dish and one end of the first sample collection dish, and the first ratchet rotates counterclockwise, and the liquid supply fan connected by the first ratchet drives the liquid supply fan to rotate clockwise. The rod rotates to transport the liquid in the liquid storage tank through the spray pipe to the first curved filter cartridge and the second curved filter cartridge, and the bacteria or viruses adsorbed in the first curved filter cartridge and the second curved filter cartridge are washed into the second sample collection dish and the first sample collection dish respectively. The test personnel take the sample and test it with a virus detector. When the sample is detected to contain a virus, the staff will take corresponding protective measures for the broilers in the corresponding chicken shed according to the test results, which makes it convenient to detect whether the gas contains viruses during the gas exchange process, and to take corresponding protective measures for the broilers raised in the broiler shed in time when the virus is found. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the main view and cross-sectional view of the present invention;

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the part;

[0019] Figure 3 For the present invention Figure 2 The structural diagram of the enlarged view of part A in the middle;

[0020] Figure 4 This is a structural schematic diagram of a side view of the connection between the adjusting gear rod and the first ratchet wheel of the present invention;

[0021] Figure 5 This is a schematic structural diagram of a three-dimensional view of a first curved filter cartridge of the present invention;

[0022] Figure 6 This is a schematic structural diagram of a three-dimensional view of the second sample collection dish of the present invention.

[0023] In the figure: 1. Ventilation box; 2. Virus detection mechanism; 21. Protection box; 22. Liquid storage tank; 23. Liquid feeding fan rod; 24. First ratchet; 25. Motor; 26. Liquid spray pipe; 27. Adjustment gear rod; 28. First sample collection dish; 29. ​​Second sample collection dish; 210. First curved filter cartridge; 211. Second curved filter cartridge; 212. Limiting block; 213. Installation positioning plate; 214. Pushing ball block; 215. Valve plate; 216. Ratchet groove; 217. First pawl; 218. Second pawl; 219. Honeycomb filter element tube; 3. First exhaust pipe; 4. Second exhaust pipe; 5. First air intake pipe; 6. Second air intake pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0025] The following describes an embodiment of the present invention based on its overall structure.

[0026] A gas exchange device for broiler chicken farming and a method of using the same, such as Figures 1-6 As shown, it includes a ventilation box 1 for exchanging air inside and outside the chicken shed, and a virus detection mechanism 2 is provided at one end of the ventilation box 1 for sampling viruses contained in the air;

[0027] The virus detection mechanism 2 includes a protective box 21, a first curved filter cartridge 210, a second curved filter cartridge 211, a second sample collection dish 29, a first sample collection dish 28, an adjustment gear rod 27, a first ratchet 24, a liquid feeding fan rod 23 and a liquid spray pipe 26;

[0028] The protection box 21 is located at one end of the ventilation box 1, and two first curved filter cartridges 210 and two second curved filter cartridges 211 are respectively provided above and below one end of the inner cavity of the protection box 21, which are used to filter and adsorb viruses contained in the internal and external exchange air flows, and a second sample collection dish 29 is clamped at one end of the bottom of the first curved filter cartridge 210, and a first sample collection dish 28 is clamped at one end of the top of the second curved filter cartridge 211, which is used to collect and detect the collected virus samples, a first exhaust pipe 3 is provided above one end of the protection box 21, a second exhaust pipe 4 is provided below the first exhaust pipe 3, the first curved filter cartridge 210 is located between the first exhaust pipe 3 and the second exhaust pipe 4, a second air inlet pipe 6 is provided below one end of the protection box 21, a first air inlet pipe 5 is provided above the second air inlet pipe 6, and the second curved filter cartridge 211 is located between the first air inlet pipe 5 and the second air inlet pipe 6, and the ventilation box 1 and the protection box 21 are connected by the first exhaust pipe 3 and the first air inlet pipe 5 respectively provided at the upper and lower ends;

[0029] The adjusting gear rod 27 is located between the first sample collecting dish 28 and the second sample collecting dish 29, and is used to position the spray pipe 26 or to adjust and replace the first curved filter cartridge 210 and the second curved filter cartridge 211, and the outer side of one end of the adjusting gear rod 27 is respectively meshed and connected with the lower side of one end of the first curved filter cartridge 210 and the upper side of one end of the second curved filter cartridge 211; the inner cavity of the adjusting gear rod 27 is penetrated by the spray pipe 26 for transporting the extract, and the top of the other end of the adjusting gear rod 27 is provided with a first ratchet 24 for driving the adjusting gear rod 27 to rotate or for driving the liquid feeding fan rod 23 to rotate, and the middle part of the first ratchet 24 is provided with a liquid feeding fan rod 23 for pushing the extract.

[0030] It should be noted that during ventilation, when the air inside the chicken shed flows into the first curved filter cartridge 210 through the second exhaust pipe 4, the first curved filter cartridge 210 filters the indoor air flowing in, and the bacteria and viruses contained in the air will be adsorbed in the first curved filter cartridge 210. The filtered air is discharged to the outside of the chicken shed through the connected first exhaust pipe 3. When the ventilation box 1 transports the air outside the chicken shed into the connected second curved filter cartridge 211 through the first air inlet pipe 5, when the external air enters the second curved filter cartridge 211, the second curved filter cartridge 211 filters the external air, and the bacteria and viruses contained in the air will be adsorbed in the wall cavity of the second curved filter cartridge 211. The filtered air flows into the second air inlet pipe 6 along the limiting block 212 of the support hoop and enters the interior of the chicken shed through the air jet pipe provided on the outside of the second air inlet pipe 6.

[0031] During the test, the clockwise rotating first ratchet 24 drives the adjusting gear rod 27 meshed at the bottom to rotate, and the rotating adjusting gear rod 27 drives the toothed ring fixed on the outside of the first curved filter cartridge 210 and the toothed ring fixed on the outside of the second curved filter cartridge 211 meshed at one end to rotate 180 degrees at the same time, so that the first curved filter cartridge 210 fixed on the toothed ring, which adsorbs bacteria and viruses, is rotated to above the second sample collection dish 29, so that the other first curved filter cartridge 210 fixed at the bottom end of the toothed ring, which does not adsorb bacteria and viruses, is rotated and moved to the connection between the first exhaust pipe 3 and the second exhaust pipe 4, and the second curved filter cartridge 211 fixed below the toothed ring, which adsorbs bacteria and viruses, is simultaneously rotated 180 degrees and then stuck to one end of the first sample collection dish 28, so that the second curved filter cartridge 211 fixed above the toothed ring, which does not adsorb bacteria and viruses, is rotated to the connection between the second air intake pipe 6 and the first air intake pipe 5;

[0032] The first ratchet 24 is rotated counterclockwise, and the liquid feeding fan rod 23 connected by the first ratchet 24 is driven to rotate to push the liquid in the liquid storage tank 22 through the liquid spray pipe 26 to the first curved filter cartridge 210 and the second curved filter cartridge 211 clamped above and below one end of the liquid spray pipe 26. When the liquid enters one end of the first curved filter cartridge 210, it will flow along one end of the first curved filter cartridge 210 to the end where the first curved filter cartridge 210 is clamped with the top of the second sample collection dish 29, and the bacteria or viruses in the first curved filter cartridge 210 will be washed and drained into the second sample collection dish 29. At the same time, the liquid extracted by washing will be used to clean the first curved filter cartridge 210 after the bacteria and viruses are extracted. Flushing and cleaning. When the liquid enters the second curved filter cartridge 211, the liquid flows from one end of the second curved filter cartridge 211 to the other end of the second curved filter cartridge 211, and the bacteria and viruses adsorbed in the second curved filter cartridge 211 are flushed into the first sample collection dish 28. After the extraction of bacteria and viruses is completed, the flowing liquid will flush and clean the inner side of the second curved filter cartridge 211. After the extracted sample enters the second sample collection dish 29 and the first sample collection dish 28, the tester will take the sample away and test it with a virus detector. When the sample is detected to contain a virus, the staff will take corresponding protective measures for the broilers in the corresponding chicken shed according to the test results.

[0033] See also Figure 1 、 Figure 2 ,and Figure 5 One end of the second curved filter cartridge 211 is rotatably connected to a mounting positioning plate 213. The first curved filter cartridge 210 and the second curved filter cartridge 211 are respectively located above and below the mounting positioning plate 213. A limiting block 212 is provided obliquely above the first curved filter cartridge 210 and obliquely below the second curved filter cartridge 211. A honeycomb filter core tube 219 is provided on the inner side of the first curved filter cartridge 210 and the second curved filter cartridge 211.

[0034] It can be understood that the second curved filter cartridge 211 and the first curved filter cartridge 210 are always rotatably connected to one end of the mounting positioning plate 213 when they are rotated to adjust the position, which helps to prevent the second curved filter cartridge 211 or the first curved filter cartridge 210 from deviating from the rotation trajectory during the rotation process. When bacteria or viruses enter the second curved filter cartridge 211 or the first curved filter cartridge 210, the bacteria or viruses will be adsorbed on the honeycomb hole force on the inner side of the honeycomb filter core tube 219, which helps to prevent the flowing airflow from carrying the bacteria or viruses retained in the second curved filter cartridge 211 and the first curved filter cartridge 210 out of the second curved filter cartridge 211 or the first curved filter cartridge 210.

[0035] See also Figure 1 、 Figure 2 and Figure 4 The middle part of one end of the first ratchet 24 is fixedly connected to the motor 25, and a ratchet groove 216 is opened in the middle part of one end of the first ratchet 24. The middle part of the ratchet groove 216 is rotatably connected to the middle part of one end of the liquid-feeding fan rod 23. One side of one end of the liquid-feeding fan rod 23 is rotatably connected to a first pawl 217, and the outer side of the first pawl 217 is engaged with the inner wall of the ratchet groove 216. The outer side of the first ratchet 24 is rotatably connected to a plurality of second pawls 218. The first ratchet 24 is meshed with the other end of the adjusting gear rod 27 through the second pawl 218. The outer side of one end of the liquid-feeding fan rod 23 is fixedly connected to a plurality of fan blades, and a water delivery cavity is provided on the outer side of the fan blades, and a liquid storage tank 22 is provided on the top of the water delivery cavity.

[0036] It should be noted that when the adjusting gear rod 27 is driven to rotate, the motor 25 drives the first ratchet 24 fixedly connected to the output end to rotate clockwise, and the second ratchet 218 connected to the outer side of the clockwise rotating first ratchet 24 will push the adjusting gear rod 27 of the bottom clamp to rotate, and the ratchet groove 216 fixedly connected to the middle of one end of the synchronous first ratchet 24 will push the connected first ratchet 217 to fold on the outer wall of one end of the liquid feeding fan rod 23 when it rotates clockwise, which is helpful to prevent the first ratchet 24 from driving the liquid feeding fan rod 23 to rotate when the clockwise rotation of the first ratchet 24 is driven. When the liquid feeding fan rod 23 is driven to rotate, the motor 25 drives the first ratchet 24 fixedly connected to the output end to rotate counterclockwise, and the counterclockwise rotating first ratchet 24 will drive the second ratchet 218 connected to the outer side to fold The outer side of one end of the adjusting gear rod 27 rotates, and the outer surface of the adjusting gear rod 27 pushes the second pawl 218 to rotate and fold toward the outer surface of the first ratchet 24 to prevent the counterclockwise rotating first ratchet 24 from driving the adjusting gear rod 27 to rotate. The counterclockwise rotating first ratchet 24 will drive the ratchet groove 216 to rotate counterclockwise, thereby pushing the first pawl 217 of the clamp to push the liquid supply fan rod 23 connected to the side of the first pawl 217 to rotate. The rotating liquid supply fan rod 23 drives the fan blades fixed on the outside to rotate, and the suction force generated will draw the liquid in the liquid storage tank 22 above into the water delivery cavity provided on the outside of one end of the liquid supply fan rod 23. The liquid supply fan rod 23 pushes the liquid in the water delivery cavity into the liquid spray pipe 26, so as to alternately drive the adjusting gear rod 27 and the liquid supply fan rod 23 to rotate.

[0037] Furthermore, a valve plate 215 is provided at the liquid inlet at one end of the first sample collection dish 28, and the top of the valve plate 215 is slidably connected to the top of the inner end of the first sample collection dish 28. A pushing ball block 214 is fixedly connected to the outer end of the second curved filter cartridge 211, and the pushing ball block 214 can be slidably connected to the top end of the valve plate 215.

[0038] It should be noted that when one end of the second curved filter cartridge 211 is rotated and clamped to one end of the first sample collection dish 28, the pushing ball 214 fixed on the second curved filter cartridge 211 contacts one end of the top of the valve plate 215, and the pushing ball 214 will push the valve plate 215 to slide to one end to open an opening. When the extracted liquid passes through the second curved filter cartridge 211 and enters the liquid inlet at one end of the top of the first sample collection dish 28, it enters the first sample collection dish 28 through the opened opening. When the second curved filter cartridge 211 rotates away from the first sample collection dish 28, the pushing ball 214 is driven to separate from the top of the valve plate 215. The reset spring provided at the other end of the top of the valve plate 215 will push the valve plate 215 to slide back and reclose the opened opening to prevent the extracted liquid from flowing out of the first sample collection dish 28.

[0039] In addition, an annular iron sheet is provided at the liquid inlet of the first sample collection dish 28 and the second sample collection dish 29, and a magnetic ring sheet is provided at the end of the second curved filter cartridge 211 in contact with the first sample collection dish 28 and the end of the first curved filter cartridge 210 in contact with the second sample collection dish 29. When the filter cartridge contacts the collection dish, the magnetic ring sheet will be adsorbed on the annular iron sheet, which is helpful in preventing the liquid from flowing out from the gap between the filter cartridge and the collection dish during liquid transportation.

[0040] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A broiler chicken breeding shed gas exchange device, comprising a ventilation box (1), characterized in that: One end of the ventilation box (1) is provided with a virus detection mechanism (2); The virus detection mechanism (2) comprises a protective box (21), a first curved filter cartridge (210), a second curved filter cartridge (211), a second sample collection dish (29), a first sample collection dish (28), an adjustment gear rod (27), a first ratchet (24), a liquid feeding fan rod (23) and a liquid spray pipe (26); The protection box (21) is located at one end of the ventilation box (1), and two first curved filter cartridges (210) and two second curved filter cartridges (211) are respectively provided above and below one end of the inner cavity of the protection box (21), one end of the bottom of the first curved filter cartridge (210) is clamped with a second sample collection dish (29), and one end of the top of the second curved filter cartridge (211) is clamped with a first sample collection dish (28), a first exhaust pipe (3) is provided above one end of the protection box (21), and a first exhaust pipe (3) is provided below the first exhaust pipe (3). a second exhaust pipe (4), the first curved filter cartridge (210) being located between the first exhaust pipe (3) and the second exhaust pipe (4), a second air intake pipe (6) being provided below one end of the protection box (21), a first air intake pipe (5) being provided above the second air intake pipe (6), the second curved filter cartridge (211) being located between the first air intake pipe (5) and the second air intake pipe (6), and the ventilation box (1) and the protection box (21) being connected via the first exhaust pipe (3) and the first air intake pipe (5) being provided at the upper and lower ends respectively; The adjusting gear rod (27) is located between the first sample collection dish (28) and the second sample collection dish (29), and the outer side of one end of the adjusting gear rod (27) is meshed and connected with the lower side of one end of the first arc-shaped filter cartridge (210) and the upper side of one end of the second arc-shaped filter cartridge (211), respectively; a liquid spraying pipe (26) passes through the inner cavity of the adjusting gear rod (27), and a first ratchet (24) is provided at the top of the other end of the adjusting gear rod (27), and a liquid feeding fan rod (23) is provided in the middle of the first ratchet (24).

2. The gas exchange device for broiler chicken farming according to claim 1, characterized in that: One end of the second curved filter cartridge (211) is rotatably connected to a mounting positioning plate (213); the first curved filter cartridge (210) and the second curved filter cartridge (211) are respectively located above and below the mounting positioning plate (213); a limiting block (212) is provided obliquely above the first curved filter cartridge (210) and obliquely below the second curved filter cartridge (211); and a honeycomb filter core tube (219) is provided on the inner sides of the first curved filter cartridge (210) and the second curved filter cartridge (211).

3. The gas exchange device for broiler chicken farming according to claim 1, characterized in that: A motor (25) is fixedly connected to the middle of one end of the first ratchet (24), a ratchet groove (216) is provided in the middle of one end of the first ratchet (24), the middle of the ratchet groove (216) is rotatably connected to the middle of one end of the liquid-feeding fan rod (23), a first pawl (217) is rotatably connected to one side of one end of the liquid-feeding fan rod (23), and the outer side of the first pawl (217) is engaged with the inner wall of the ratchet groove (216).

4. The gas exchange device for broiler chicken farming in a shed according to claim 1, characterized in that: The outer side of the first ratchet (24) is rotatably connected to a plurality of second ratchet pawls (218), and the first ratchet (24) is meshedly connected to the other end of the adjustment gear rod (27) via the second ratchet pawls (218).

5. The gas exchange device for broiler chicken farming in a shed according to claim 1, characterized in that: A plurality of fan blades are fixedly connected to the outside of one end of the liquid-feeding fan rod (23), a water delivery cavity is provided on the outside of the fan blades, and a liquid storage tank (22) is provided on the top of the water delivery cavity.

6. The broiler chicken breeding shed gas exchange device according to claim 1, characterized in that: A valve plate (215) is provided at the liquid inlet at one end of the first sample collection dish (28), and the top of the valve plate (215) is slidably connected to the top of one end of the inner side of the first sample collection dish (28). A pushing ball block (214) is fixedly connected to one end of the outer side of the second arc-shaped filter cartridge (211), and the pushing ball block (214) can be slidably connected to one end of the top of the valve plate (215).

7. The method for using the gas exchange device for broiler breeding shed according to claims 1-6, characterized in that: The process of gas exchange: S1. When the air outside the chicken shed passes through the second curved filter cartridge (211) through the first air inlet pipe (5), the bacteria and viruses contained in the air inside the shed will be adsorbed in the wall cavity of the second curved filter cartridge (211). The air passes through the second curved filter cartridge (211) and flows into the chicken shed through the second air inlet pipe (6), pushing the air inside the chicken shed upward, causing the air inside the chicken shed to float. When the internal air flows through the first curved filter cartridge (210) through the second exhaust pipe (4), the bacteria and viruses contained in the air will be adsorbed in the first curved filter cartridge (210). The air passes through the first curved filter cartridge (210) and is discharged from the chicken shed through the first exhaust pipe (3); S2. During the detection, the first ratchet (24) rotates clockwise to drive the adjusting gear rod (27) meshed at the bottom to rotate. The rotating adjusting gear rod (27) drives the toothed ring fixed on the outside of the first arc filter cartridge (210) meshed at one end and the toothed ring fixed on the outside of the second arc filter cartridge (211) to rotate 180 degrees at the same time, so that the first arc filter cartridge (210) fixed on the toothed ring and adsorbed with bacteria and viruses is rotated to the top of the second sample collection dish (29), so that the other first arc filter cartridge (210) fixed at the bottom of the toothed ring and not adsorbed with bacteria and viruses is rotated and moved to the connection between the first exhaust pipe (3) and the second exhaust pipe (4), and the second arc filter cartridge (211) fixed below the toothed ring and adsorbed with bacteria and viruses is simultaneously clamped to one end of the first sample collection dish (28), so that the second arc filter cartridge (211) fixed above the toothed ring and not adsorbed with bacteria and viruses is rotated to the connection between the second air inlet pipe (6) and the first air inlet pipe (5); S3, counterclockwise rotation of the first ratchet (24), the first ratchet (24) drives the connected liquid delivery fan rod (23) to rotate and push the liquid in the liquid storage tank (22) to the liquid spray pipe (26) and enter the second curved filter cartridge (211) and the first curved filter cartridge (210) through the liquid spray pipe (26), and the bacteria and viruses adsorbed in the second curved filter cartridge (211) and the first curved filter cartridge (210) are respectively flushed into the first sample collection dish (28) and the second sample collection dish (29). After the bacteria and virus extraction is completed, the flowing liquid will flush and clean the inner side of the curved filter cartridge. After the extracted sample enters the second sample collection dish (29) and the first sample collection dish (28), the sample is taken away by the inspection personnel for inspection using a virus detector. When the sample is detected to contain a virus, the staff will take corresponding protective measures for the broilers in the corresponding chicken shed according to the inspection results.

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