Air purifying device for poultry and livestock houses

Abstract

The utility model discloses a kind of air purification devices in poultry house, it is related to air purification field, including purification tank, purification tank one end is fixed with air inlet box, filter screen and exhaust fan are installed in air inlet box, filter screen is located in the side of exhaust fan far away from purification tank, cleaning mechanism is set between filter screen and exhaust fan, cleaning mechanism includes lifting shell, impact structure for making filter screen vibrate is set in lifting shell, impact structure is provided with soot blowing structure for blowing air to filter screen on the front and back two sides. Advantage lies in: by the rotation of cylindrical block, so that extrusion spiral plate stirs pressure bar, pressure bar drives first U-shaped frame and impact head away from filter screen, when pressure bar and extrusion spiral plate are separated, elastic structure will drive first U-shaped frame to reset quickly, so that impact head knocks filter screen, dust on filter screen is shaken off, and dust is sucked away through dust extraction mechanism, realize automatic soot blowing, ensure the normal operation of device.

Description

Technical Field

[0001] This utility model relates to the field of air purification, and in particular to an air purification device for poultry and livestock houses. Background Technology

[0002] The environment inside poultry and livestock sheds is quite complex. The activities of poultry and livestock cause dust to be stirred up on the ground or inside the breeding boxes. Poor ventilation can easily lead to the air environment remaining in a relatively stable state for a long time. When feeding, dust is easily generated. Since the breeding density in poultry and livestock sheds is relatively high and the breeding space is limited, this dust and particulate matter can remain in the air for a long time and can easily be inhaled by poultry and livestock, causing them to get sick. Therefore, air purification devices are needed to purify the air inside poultry and livestock sheds.

[0003] For example, patent document CN220878149U discloses an air purification device for livestock sheds. This device uses an alternating filter assembly to exchange the positions of two filters. The air outlet chamber contains, sequentially along the gas flow direction, a blower assembly, one filter, a dust collection bag, and an air purification assembly. A brush assembly is located on the dust-facing side of the filter, movably mounted within the housing. The two brush assemblies are connected to the alternating filter assembly via a transmission mechanism. This device enables the alternating use of two filters, and when the two filters exchange positions, the dust on the filters can be automatically cleaned, thus preventing filter clogging.

[0004] However, in the above-mentioned purification device, the direction of dust blowing is the direction of air exhaust. After cleaning the dust on the filter screen, the dust will fall into the air outlet cavity. The dust is not collected and cleaned. In addition, some of the dust will be blown out into the outside environment again with the exhaust air, while the other part of the dust will remain in the air outlet cavity. The long accumulation time will affect the exhaust, thus resulting in the poor performance of the above-mentioned purification device. Utility Model Content

[0005] The purpose of this invention is to provide an air purification device for poultry and livestock houses in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] An air purification device for poultry and livestock sheds includes a purification box, an air inlet box fixed to one end of the purification box, a filter and an exhaust fan installed inside the air inlet box, the filter located on the side of the exhaust fan away from the purification box, a cleaning mechanism between the filter and the exhaust fan, the cleaning mechanism including a lifting shell, an impact structure for vibrating the filter inside the lifting shell, dust blowing structures for blowing air onto the filter on both sides of the impact structure, an elastic structure between the impact structure and the dust blowing structure, and a dust extraction mechanism on the side of the filter away from the lifting shell. The dust collection mechanism includes a dust collection shell, the height of which is the same as that of the lifting shell. An air extraction hole is provided on the side of the dust collection shell near the filter screen. A multi-stage shrink cylinder is fixed to the bottom of the dust collection shell, and the bottom end of the multi-stage shrink cylinder is fixedly connected to the bottom wall of the air inlet box. A collection box is fixed to the bottom of the air inlet box by a bracket. The multi-stage shrink cylinder is connected to the collection box, and a dust filter box is inserted inside the collection box. An air extractor is fixed to the bottom of the air inlet box and is connected to the collection box. A fixed shell is fixed to the top of the air inlet box, and a reciprocating mechanism for driving the lifting shell to move up and down is provided inside the fixed shell.

[0008] Preferably, the elastic structure includes a sleeve, which is fixedly connected to the inner wall of the lifting shell. A telescopic rod is slidably connected inside the sleeve, and a spring is fixedly connected between the telescopic rod and the sleeve. A movable seat is fixedly connected to the end of the telescopic rod near the filter screen.

[0009] Preferably, the soot blowing structure includes a push-pull plate, which is fixedly connected to a movable seat. A push-pull rod is fixedly connected to the side of the push-pull plate near the filter screen. A sealing slider is fixedly connected to the end of the push-pull rod near the filter screen. A fixing tube is sleeved on the push-pull rod. The end of the fixing tube near the filter screen extends out of the lifting shell. The sealing slider is slidably fitted inside the fixing tube.

[0010] Preferably, the impact structure includes a first U-shaped frame, the open end of the first U-shaped frame being away from the filter screen, an impact head being fixedly connected to the closed end of the first U-shaped frame, the impact head extending out of the lifting shell, a pressure rod being fixedly connected to the open end of the first U-shaped frame, a cylindrical block being provided inside the first U-shaped frame, a compression spiral plate being fixedly connected to the cylindrical block and engaging with the pressure rod, a motor being fixedly connected to the input end of the cylindrical block, and the first U-shaped frame being fixedly connected to the movable seat.

[0011] Preferably, the reciprocating mechanism includes a second U-shaped frame, which is slidably connected to the top wall of the air inlet box. The bottom end of the second U-shaped frame is fixedly connected to the lifting shell and the dust extraction shell respectively. A threaded hole plate is fixedly connected to the second U-shaped frame. A vertically arranged reciprocating screw is threadedly connected to the threaded hole plate. The reciprocating screw is rotatably connected to the fixed shell and the air inlet box. The reciprocating mechanism also includes a transmission structure for driving the reciprocating screw to rotate by the exhaust fan.

[0012] Preferably, the transmission structure includes a driven bevel gear, which is fixedly connected to the bottom end of the reciprocating lead screw. The driven bevel gear meshes with a driving bevel gear, and the driving bevel gear is fixedly connected to a transmission shaft. The transmission shaft is rotatably connected to the side wall of the fixed housing, and the transmission shaft is connected to the output shaft of the exhaust fan through a transmission belt structure.

[0013] The beneficial effects are:

[0014] 1. The rotation of the cylindrical block causes the extrusion spiral plate to move the pressure rod, which in turn moves the first U-shaped frame and the impact head away from the filter screen. When the pressure rod disengages from the extrusion spiral plate, the elastic structure causes the first U-shaped frame to quickly reset, allowing the impact head to strike the filter screen, shaking off the dust. The dust is then removed by the dust extraction mechanism, achieving automatic dust removal and ensuring the normal operation of the device.

[0015] 2. By setting up a dust-blowing structure, when the impact head strikes the filter screen, the dust-blowing structure blows air onto the filter screen, which helps to remove the dust on the filter screen and thus improves the dust removal effect.

[0016] 3. The reciprocating mechanism drives the cleaning and dust extraction mechanisms to move up and down, ensuring that the filter screen is thoroughly cleaned without affecting the air intake, thus guaranteeing the dust removal effect.

[0017] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a perspective view of an air purification device for poultry and livestock sheds as described in this utility model;

[0020] Figure 2 This is a front sectional view of an air purification device for poultry and livestock sheds as described in this utility model;

[0021] Figure 3 This is a top view of the internal structure of the lifting shell of the air purification device for poultry and livestock houses described in this utility model;

[0022] Figure 4 This is a top view of the impact structure and elastic structure of the air purification device for poultry and livestock houses described in this utility model;

[0023] Figure 5 This is a top view of the soot blowing structure and elastic structure of the air purification device for poultry and livestock houses described in this utility model;

[0024] Figure 6 This is a right view showing the positional relationship between the dust extraction shell and the filter screen of the air purification device for poultry and livestock houses described in this utility model;

[0025] Figure 7 This is a front sectional view of the dust extraction mechanism of an air purification device for poultry and livestock houses according to this utility model;

[0026] Figure 8 This is a front view of the reciprocating mechanism of the air purification device for poultry and livestock sheds described in this utility model.

[0027] The reference numerals in the attached drawings are explained as follows: 1. Purification box; 101. Air inlet box; 102. Photocatalytic device; 103. Ozone generator; 104. Negative ion generator; 105. Activated carbon box; 2. Filter screen; 3. Exhaust fan; 401. Lifting shell; 402. Impact structure; 4021. First U-shaped frame; 4022. Impact head; 4023. Pressure rod; 4024. Cylindrical block; 4025. Extrusion spiral plate; 403. Soot blowing structure; 4031. Push-pull plate; 4032. Push-pull rod; 4033. Sealing. 4034, Slider; 404, Fixed tube; 404, Elastic structure; 4041, Sleeve; 4042, Telescopic rod; 4043, Spring; 4044, Movable seat; 405, Motor; 501, Dust extraction shell; 502, Multi-stage shrink tube; 503, Collection box; 504, Filtration box; 505, Air extractor; 6, Fixed shell; 701, Second U-shaped frame; 702, Threaded hole plate; 703, Reciprocating screw; 704, Driven bevel gear; 705, Driving bevel gear; 706, Drive shaft; 707, Drive belt structure. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-8As shown, an air purification device for poultry and livestock sheds includes a purification box 1. Inside the purification box 1, from right to left, are arranged a photocatalytic device 102, an ozone generator 103, a negative ion generator 104, and an activated carbon box 105. The photocatalytic device 102 can decompose harmful organic matter and bacteria in the air. The ozone generator 103 can produce ozone gas, which has strong oxidizing properties and can kill bacteria, viruses, mold, and other microorganisms in the air. Simultaneously, ozone can react with organic pollutants in the air, oxidizing them into harmless substances. The negative ion generator 104 can... It can generate negative ions, which have the functions of dust removal, deodorization and odor removal. Negative ions can react with small particulate matter, harmful gases and odors in the air and convert them into harmless substances. Activated carbon box 105 can remove odors. An air inlet box 101 is fixedly connected to the right end of the purification box 1. A filter screen 2 and an exhaust fan 3 are installed in the air inlet box 101. The filter screen 2 is located to the right of the exhaust fan 3. The exhaust fan 3 allows outside air to enter the purification box 1 through the air inlet box 101. The air is first filtered by the filter screen 2, and then the filtered air is further processed in the purification box 1 before being discharged.

[0032] A cleaning mechanism is provided between the filter screen 2 and the exhaust fan 3. The cleaning mechanism includes a lifting housing 401, inside which is an impact structure 402 for vibrating the filter screen 2. The impact structure 402 includes a first U-shaped frame 4021, with an open end on the left and a closed end on the right. An impact head 4022 is fixedly connected to the right end of the first U-shaped frame 4021, extending out of the lifting housing 401. When the right end of the first U-shaped frame 4021 contacts the inner wall of the lifting housing 401, the impact head 4022 contacts the filter screen 2. Two front... The pressure rods 4023 are symmetrically distributed. A cylindrical block 4024 is provided inside the first U-shaped frame 4021. An extrusion spiral plate 4025 that contacts and cooperates with the pressure rods 4023 is fixedly connected to the cylindrical block 4024. There are two extrusion spiral plates 4025, which are rotationally symmetrical about the axis of the cylindrical block 4024. A motor 405 is fixedly connected to the input end of the cylindrical block 4024. The motor 405 drives the cylindrical block 4024 to rotate. The cylindrical block 4024 drives the extrusion spiral plate 4025 to rotate, so that the extrusion spiral plate 4025 extrudes the pressure rods 4023, causing the pressure rods 4023 to drive the first U-shaped frame 4021 to move to the left.

[0033] The impact structure 402 has a soot blowing structure 403 on its front and rear sides for blowing air onto the filter screen 2. An elastic structure 404 is provided between the impact structure 402 and the soot blowing structure 403. The elastic structure 404 is used to provide power to the first U-shaped frame 4021 and the soot blowing structure 403. A dust extraction mechanism is provided on the right side of the filter screen 2. The top of the air inlet box 101 is connected to a fixed shell 6 by screws. A reciprocating mechanism for driving the lifting shell 401 to move up and down is provided inside the fixed shell 6.

[0034] The elastic structure 404 includes a sleeve 4041, which is fixedly connected to the inner left side wall of the lifting shell 401. A telescopic rod 4042 is slidably connected inside the sleeve 4041. A spring 4043 is fixedly connected between the telescopic rod 4042 and the sleeve 4041. A movable seat 4044 is welded to the right end of the telescopic rod 4042. The front and rear ends of the first U-shaped frame 4021 are bolted to the two movable seats 4044. When the first U-shaped frame 4021 moves to the left, it drives the movable seats 4044 to move, causing the telescopic rod 4042 to retract into the sleeve 4041. When the pressure rod 4023 is compressed, it disengages from the compression spiral plate 4025 when it moves to the leftmost end. At this time, the pressure rod 4023 is no longer under force, the spring 4043 rebounds quickly, and the telescopic rod 4042 extends quickly, causing the movable seat 4044 to drive the first U-shaped frame 4021 to move quickly to the right. This causes the impact head 4022 to impact the filter screen 2, shaking off the dust on the filter screen 2. Multiple impact heads 4022 are provided and are equidistantly distributed in the front-back direction. This arrangement increases the impact range of the filter screen 2 and improves the effect of vibration cleaning.

[0035] The soot blowing structure 403 includes a push-pull plate 4031, which is fixedly connected to a movable seat 4044. A push-pull rod 4032 is fixedly connected to the right side of the push-pull plate 4031, and a sealing slider 4033 is fixedly connected to the right end of the push-pull rod 4032. A fixing tube 4034 is sleeved on the push-pull rod 4032, and the right end of the fixing tube 4034 extends out of the lifting shell 401. The sealing slider 4033 is slidably fitted inside the fixing tube 4034. When the movable seat 4044 moves the push-pull plate 4031... When moving to the left, a certain amount of gas is drawn into the fixed tube 4034. When the push-pull plate 4031 drives the push-pull rod 4032 to move quickly to the right, the sealing slider 4033 quickly pushes out the gas in the fixed tube 4034 to form an impact airflow, thereby causing the airflow to backflush the dust on the filter screen 2 and improve the dust removal effect. Specifically, multiple fixed tubes 4034 are provided and are equidistantly distributed in the front-back direction. This arrangement can increase the contact area between the backflush airflow and the filter screen 2 and ensure the dust removal effect.

[0036] The dust extraction mechanism includes a dust extraction shell 501, the height of which is the same as that of the lifting shell 401. An air extraction hole is provided on the left side of the dust extraction shell 501. A multi-stage shrink tube 502 is fixed to the bottom of the dust extraction shell 501, and its bottom end is fixedly connected to the bottom wall of the air inlet box 101. Specifically, the multi-stage shrink tube 502 is composed of multiple hollow tubes nested together in a sliding manner. This arrangement ensures that dust extraction can always be performed during the up-and-down movement of the dust extraction shell 501. The uppermost hollow tube communicates with the dust extraction shell 501, and the lowermost hollow tube is fixedly connected to the bottom wall of the air inlet box 101. A collection box 503 is fixed to the bottom of the air inlet box 101 via a bracket. The multi-stage shrink tube 502 communicates with the collection box 503, and a [missing information - likely a device or component] is inserted inside the collection box 503. The dust collection box 504 and the bottom of the air inlet box 101 are connected by screws to an air extractor 505. The air extractor 505 is connected to the collection box 503. The air extractor 505 draws air to create a negative pressure inside the dust collection shell 501. The dust on the filter screen 2 enters the dust collection shell 501 through the dust suction hole. The dust enters the collection box 503 through the multi-stage shrink cylinder 502. The dust collection box 504 filters and collects the dust. The dust collection box 504 is then removed from the collection box 503 to clean the dust. In addition, the dust collection shell 501 has a windproof function, so that the part of the filter screen 2 corresponding to the dust collection shell 501 is less affected by the impact of the outside air. This prevents the gas blown out of the fixed pipe 4034 from forming convection with the outside air, which would affect the effect of gas backflushing and dust removal.

[0037] The reciprocating mechanism includes a second U-shaped frame 701. Specifically, the U-shaped opening of the second U-shaped frame 701 faces downwards. The two vertical sides of the second U-shaped frame 701 are slidably connected to the top wall of the air inlet box 101. The bottom ends of the two vertical sides of the second U-shaped frame 701 are fixedly connected to the lifting shell 401 and the dust extraction shell 501, respectively. A threaded hole plate 702 is welded on the second U-shaped frame 701. A vertically arranged reciprocating screw 703 is threadedly connected to the threaded hole plate 702. The reciprocating screw 703 is connected to the fixed shell 6 and the air inlet box 101 through bearings. The reciprocating mechanism also includes a transmission structure for driving the fan 3 to rotate the reciprocating screw 703. When the reciprocating screw 703 rotates, it drives the threaded hole plate 702 and the second U-shaped frame 701 to move up and down reciprocally. The second U-shaped frame 701 simultaneously drives the lifting shell 401 and the dust extraction shell 501 to move up and down, thereby enabling comprehensive cleaning of the filter screen 2.

[0038] The transmission structure includes a driven bevel gear 704, which is fixedly connected to the bottom end of the reciprocating screw 703. The driven bevel gear 704 meshes with a driving bevel gear 705, which is fixedly connected to a drive shaft 706. The drive shaft 706 is connected to the side wall of the fixed housing 6 via bearings. The drive shaft 706 is connected to the output shaft of the exhaust fan 3 via a transmission belt structure 707. Specifically, the transmission belt structure 707 includes two pulleys and a belt. The two pulleys are fixedly connected to the drive shaft 706 and the output shaft of the exhaust fan 3, respectively. The belt connects the two pulleys. An clearance hole is provided on the top of the air inlet box 101, through which the belt passes.

[0039] Working principle: When in use, the exhaust fan 3 draws in outside air into the air intake box 101, where it is filtered by the filter screen 2. The air is then processed sequentially by the photocatalytic device 102, the ozone generator 103, the negative ion generator 104, and the activated carbon box 105 before being discharged.

[0040] The cylindrical block 4024 is driven to rotate by the motor 405. The cylindrical block 4024 drives the extrusion spiral plate 4025 to rotate. The extrusion spiral plate 4025 extrudes the pressure rod 4023. The pressure rod 4023 drives the first U-shaped frame 4021 and the impact head 4022 to move to the left. The first U-shaped frame 4021 drives the movable seat 4044 and the telescopic rod 4042 to move to the left. The spring 4043 is compressed. When the pressure rod 4023 moves to the leftmost end of the extrusion spiral plate 4025 and disengages from the extrusion spiral plate 4025, the pressure rod 4023... Spring 4043 quickly returns to its original position, causing the first U-shaped frame 4021 to drive the impact head 4022 to move quickly to the left. When the first U-shaped frame 4021 contacts the inner wall of the lifting shell 401, the impact head 4022 contacts the filter screen 2. The impact head 4022 strikes the filter screen 2, causing the filter screen 2 to vibrate and shake off the dust on the filter screen 2. At this time, the first U-shaped frame 4021 has returned to its initial position, causing the cylindrical block 4024 to rotate continuously, thereby causing the first U-shaped frame 4021 to move back and forth, causing the impact head 4022 to intermittently strike the filter screen 2.

[0041] As the movable seat 4044 moves to the left, it drives the push-pull plate 4031 to move. The push-pull plate 4031 drives the push-pull rod 4032 and the sealing slider 4033 to move to the left, causing a certain amount of gas to be drawn into the fixed tube 4034. When the movable seat 4044 moves quickly to the right, the sealing slider 4033 moves quickly to the right and pushes out the gas in the fixed tube 4034, thereby forming a back-blowing airflow. The back-blowing airflow impacts the filter screen 2 and blows the dust on the filter screen 2 toward the dust extraction shell 501, thereby improving the dust removal effect.

[0042] The air is drawn in by the air extractor 505, creating a negative pressure inside the dust extraction housing 501, which draws the dust cleaned from the filter screen 2 into the dust extraction housing 501. The dust then passes through the multi-stage shrink tube 502 into the collection box 503, where the dust filter box 504 holds the dust. The dust filter box 504 can be removed to clean the dust.

[0043] During the operation of the exhaust fan 3, the output shaft of the exhaust fan 3 drives the transmission shaft 706 to rotate through the transmission belt structure 707. The transmission shaft 706 drives the active bevel gear 705 to rotate, the active bevel gear 705 drives the driven bevel gear 704 to rotate, the driven bevel gear 704 drives the reciprocating screw 703 to rotate, and the reciprocating screw 703 drives the threaded hole plate 702 to move up and down, thereby causing the second U-shaped frame 701 to move up and down. The second U-shaped frame 701 drives the lifting shell 401 and the dust collection shell 501 to move up and down, which can thoroughly clean the filter screen 2 and ensure the dust removal effect.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An air purification device for poultry and livestock houses, comprising a purification box (1), an air inlet box (101) fixed at one end of the purification box (1), a filter screen (2) and an exhaust fan (3) installed inside the air inlet box (101), the filter screen (2) being located on the side of the exhaust fan (3) away from the purification box (1), characterized in that: A cleaning mechanism is provided between the filter screen (2) and the exhaust fan (3). The cleaning mechanism includes a lifting shell (401). An impact structure (402) for vibrating the filter screen (2) is provided inside the lifting shell (401). A dust-blowing structure (403) for blowing air onto the filter screen (2) is provided on the front and rear sides of the impact structure (402). An elastic structure (404) is provided between the impact structure (402) and the dust-blowing structure (403). A dust-collecting mechanism is provided on the side of the filter screen (2) away from the lifting shell (401). The dust-collecting mechanism includes a dust-collecting shell (501). The height of the dust-collecting shell (501) is the same as the height of the lifting shell (401). The dust-collecting shell (501) is close to the filter screen (2). An air extraction hole is provided on one side. A multi-stage shrink cylinder (502) is fixed at the bottom of the dust extraction shell (501). The bottom end of the multi-stage shrink cylinder (502) is fixedly connected to the bottom wall of the air inlet box (101). A collection box (503) is fixed at the bottom of the air inlet box (101) by a bracket. The multi-stage shrink cylinder (502) is connected to the collection box (503). A dust filter box (504) is inserted in the collection box (503). An air extractor (505) is fixed at the bottom of the air inlet box (101). The air extractor (505) is connected to the collection box (503). A fixed shell (6) is fixed at the top of the air inlet box (101). A reciprocating mechanism for driving the lifting shell (401) to move up and down is provided inside the fixed shell (6).

2. The air purification device for poultry and livestock houses according to claim 1, characterized in that: The elastic structure (404) includes a sleeve (4041), which is fixedly connected to the inner wall of the lifting shell (401). A telescopic rod (4042) is slidably connected inside the sleeve (4041). A spring (4043) is fixedly connected between the telescopic rod (4042) and the sleeve (4041). A movable seat (4044) is fixedly connected to one end of the telescopic rod (4042) near the filter screen (2).

3. The air purification device for poultry and livestock houses according to claim 2, characterized in that: The soot blowing structure (403) includes a push-pull plate (4031), which is fixedly connected to the movable seat (4044). A push-pull rod (4032) is fixedly connected to the side of the push-pull plate (4031) near the filter screen (2). A sealing slider (4033) is fixedly connected to the end of the push-pull rod (4032) near the filter screen (2). A fixing tube (4034) is sleeved on the push-pull rod (4032). The end of the fixing tube (4034) near the filter screen (2) extends out of the lifting shell (401). The sealing slider (4033) is slidably fitted inside the fixing tube (4034).

4. The air purification device for poultry and livestock houses according to claim 2, characterized in that: The impact structure (402) includes a first U-shaped frame (4021), the open end of the first U-shaped frame (4021) is away from the filter screen (2), the closed end of the first U-shaped frame (4021) is fixedly connected to an impact head (4022), the impact head (4022) extends out of the lifting shell (401), the open end of the first U-shaped frame (4021) is fixedly connected to a pressure rod (4023), a cylindrical block (4024) is provided inside the first U-shaped frame (4021), a compression spiral plate (4025) that contacts and cooperates with the pressure rod (4023) is fixedly connected on the cylindrical block (4024), a motor (405) is fixedly connected to the input end of the cylindrical block (4024), and the first U-shaped frame (4021) is fixedly connected to the movable seat (4044).

5. The air purification device for poultry and livestock houses according to claim 1, characterized in that: The reciprocating mechanism includes a second U-shaped frame (701), which is slidably connected to the top wall of the air inlet box (101). The bottom end of the second U-shaped frame (701) is fixedly connected to the lifting shell (401) and the dust extraction shell (501) respectively. A threaded hole plate (702) is fixedly connected on the second U-shaped frame (701). A vertically arranged reciprocating screw (703) is threadedly connected inside the threaded hole plate (702). The reciprocating screw (703) is rotatably connected to the fixed shell (6) and the air inlet box (101). The reciprocating mechanism also includes a transmission structure for driving the reciprocating screw (703) to rotate by the exhaust fan (3).

6. The air purification device for poultry and livestock houses according to claim 5, characterized in that: The transmission structure includes a driven bevel gear (704), which is fixedly connected to the bottom end of the reciprocating screw (703). The driven bevel gear (704) meshes with a driving bevel gear (705). The driving bevel gear (705) is fixedly connected to a transmission shaft (706). The transmission shaft (706) is rotatably connected to the side wall of the fixed housing (6). The transmission shaft (706) is connected to the output shaft of the exhaust fan (3) through a transmission belt structure (707).

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